ES2531958T3 - Retention device for a semi-fixed blade - Google Patents

Abstract

Retention device for a semi-fixed sheet (2) that cooperates with a mobile sheet (1) to close an opening, said device comprising: a first retention member (10) adapted to be integral with a first object between the semi-fixed sheet (2 ) and the contour of the opening near a meeting point of the two sheets (1, 2); a second retention member (35) adapted to be movable mounted on the other of said objects such that it can occupy a reference position (Z0) in which the first and second retention members (10, 35) are adapted to cooperate together to retain the semi-fixed sheet (2) in the closed position, and in such a way that it can move away from this reference position (Z0) according to a first direction of travel (N) to allow a release of said cooperation to authorize an opening or closing movement of the semi-fixed sheet (2); a first control organ (70) designed to be integral with the movable blade (1); a second control element (40) adapted to be movable mounted on the other of said objects for, during the closing of the movable leaf (1), to cooperate by cam effect with the first control organ (70) to request a displacement of the second retention body (35); characterized in that the second retention member (35) is adapted to move away from its reference position (Z0) according to a second direction of travel (P) opposite to the first (N) to allow a strengthening of the cooperation of the first and second retaining members (10, 35) to hold the semi-fixed blade (2) more firmly in the closed position; The device comprises return means (60, 65) configured for, when the second retention member (35) moves away from its reference position (Z0) according to any direction of movement between the first and second directions (N, P), return the second retention member (35) to its reference position (Z0); the cam-effect cooperation of the first and second control bodies (70, 40) requests a departure from the second retention member (35) with respect to its reference position (Z0) according to the second direction (P); and the first and second retention elements (10, 35) are configured to, when the opening or closing movement of the semi-fixed leaf (2) is requested, cooperate by cam effect to request a distance from the second retention element (35) with respect to its reference position (Z0) according to the first direction (N).

Description

DESCRIPTION

Retention device for a semi-fixed blade.

Field of the invention 5

This description refers to the field of doors, windows, glazed doors or other types of sheets designed to close an opening.

It refers more particularly to a retention device for a semi-fixed leaf that cooperates with a mobile leaf 10 to close an opening.

In the present description, it is understood that the term "movable sheet" designates that of the two sheets that normally opens first when the two sheets are initially in the closed position. This mobile sheet is also usually called the "service sheet", an expression that can be taken up later in this description, if necessary.

On the other hand, in the present description, it is understood that the expression "semi-fixed sheet" means that of the two sheets that normally only opens once the movable sheet is opened.

 twenty

Prior art

A first retention device is already known for a semi-fixed leaf that cooperates with a movable leaf to close an opening. This conventional device comprises a locking element that can be locked / unlocked once the movable blade is in the open position. This unlocking must be done manually, for example using a handle or a lever that is accessible to the user once the moving blade is in the open position.

This conventional device therefore has the disadvantage of requiring that the user actively contribute to proceed with the locking / unlocking of the semi-fixed sheet, which is cumbersome for the user. 30

To solve this problem, a second conventional device has been developed, which performs an automatic locking / unlocking of the semi-fixed leaf by means of a simple movement of closing / opening of the moving leaf. This second conventional device is described in particular in DE 342584.

 35

More precisely, this conventional device comprises:

a first retention organ adapted to be integral with the semi-fixed blade;

a second retention member adapted to be movable mounted on the contour of the opening, near a meeting point of the two sheets, such that it can occupy a reference position in which the first and second retention elements are adapted to cooperate together to retain the semi-fixed blade in the closed position, and in such a way that it can move away from this reference position according to a first direction of travel to allow a release of said cooperation to authorize an opening or closing movement of the semi-fixed blade;

a first control organ designed to be integral with the movable blade; Four. Five

a second control member adapted to be movable mounted on the contour of the opening to, during the closing of the movable leaf, cooperate by cam effect with the first control member to request a movement of the second retention member towards its reference position ;

a spring to request a distance from the second control body with respect to its reference position.

 fifty

In this conventional device, the semi-fixed blade is strongly retained in the closed position when the second retention member occupies its reference position. This results in that, when the movable blade is in the closed position, the semi-fixed blade cannot be opened, even when the user requests this opening.

On the other hand, in this conventional device, the first and second control bodies are configured to, 55 when the second retention body adopts its position of release from cooperation (and, therefore, when the second retention body is outside its reference position), cooperate by cam effect to request the approach of the second retention body towards its reference position.

In addition, in this conventional device, the spring is configured to, when the second retention member 60 occupies its reference position, return the second retention member to its cooperative release position (ie, request a distance from the second organ retention with respect to its reference position).

Thus, with this conventional device, the second retention member moves away from its reference position to adopt its release position when the movable sheet is out of its closed position. This has

As a result, no element of this conventional device now retains the semi-fixed blade in the closed position when the mobile blade is open.

As a consequence, this conventional device has the disadvantage of allowing, when the mobile blade is in the opening position, an accidental opening of the semi-fixed blade, in particular under the effect of the wind or its own weight when it is not in the vertical.

However, it is usually customary for the semi-fixed sheet to be kept in the closed position as a result of the opening of the movable sheet, generally only a semi-fixed leaf opening being desirable only on very rare occasions. Therefore, an accidental opening of the semi-fixed blade degrades its 10-leaf functionality called "semi-fixed".

Therefore, taking into account the above, there is an urgent need to develop a retention device that improves the functionality of the semi-fixed sheet while being little cumbersome to use.

 fifteen

Presentation of the invention

One aspect of the present description refers to a retention device for a semi-fixed leaf that cooperates with a movable leaf to close an opening.

 twenty

In some embodiments, this device may be such that it comprises: a first retention member adapted to be integral with a first object between the semi-fixed sheet and the contour of the opening near a meeting point of the two sheets; a second retention member adapted to be movable mounted on the other of said objects such that it can occupy a reference position in which the first and second retention members are adapted to cooperate together to retain the semi-fixed sheet in the position of closing, and in such a way that it can be moved away from this reference position according to a first direction of travel to allow a release of said cooperation to authorize an opening or closing movement of the semi-fixed leaf; a first control organ designed to be integral with the movable blade; and a second control organ adapted to be movable mounted on the other of said objects to, during the closing of the movable leaf, cooperate by cam effect with the first control organ to request a displacement of the second retention organ. 30

This device may be such that the second retention member is adapted to move away from its reference position according to a second direction of travel opposite to the first to allow a strengthening of the cooperation of the first and second retention members to retain more firmly the semi-fixed blade in the closed position; the device comprises return means configured for, when the second retention member 35 moves away from its reference position according to any direction of travel between the first and second directions, return the second retention member to its reference position; the cam-effect cooperation of the first and second control bodies requests a departure from the second retention body with respect to its reference position according to the second direction; and the first and second retention members are configured to, when the opening or closing movement of the semi-fixed blade is requested, cooperate by cam effect to request a distance from the second retention member with respect to its reference position according to the first sense.

In these embodiments, the device can be arranged in such a way that the second retention member is adapted to move away from its reference position, not only according to a first direction of travel in which the cooperation of the first and the second retention members, but also according to a second direction of displacement opposite to the first in which this cooperation can be reinforced to retain the semi-fixed blade more firmly in the closed position.

This reinforced cooperation can therefore be such that the semi-fixed blade may be sufficiently firmly retained 50 to prevent it from leaving its closed position, even when the user requests its opening. The semi-fixed sheet is then locked in the closed position by this cooperation of the first retention body with the second retention body that has reached a position called cooperation reinforcement that moves away from its reference position in the second direction.

 55

On the other hand, since the semi-fixed blade can be firmly held in the closed position when the second retention member is out of its reference position and away from the latter, this reference position can now be used to allow less retention. Firm of the semi-fixed blade in the closed position, in particular through the cooperation of the first and second retention bodies that remains effective but is now less pronounced. 60

Therefore, when the second retention body occupies its reference position, the cooperation of the first and second retention organs can now define a hard point for securing the semi-fixed blade in the closed position, which prevents accidental opening of the latter. last when the movable sheet is outside its closed position, but which, when an opening is intentionally desired, can however be easily overcome 65 by a simple request in displacement of the semi-fixed leaf towards its opening position (for example

by a simple pressure exerted by the user directly on the semi-fixed sheet) to allow this opening.

On the other hand, in order to make the release or realization of this hard holding point more comfortable, the device can be such that the first and second retention members are configured to, when the opening or closing movement of the device is requested. Semi-fixed blade while the second retention body occupies its reference position, cooperate by cam effect to request the removal of the second retention body according to the first direction.

More precisely, when the movable sheet is out of its closed position, the second retention member can occupy its reference position. 10

Thus, when an opening movement of the semi-fixed blade is requested from its closed position, the relative position between the first and the second retention members can allow them to cooperate together by cam effect.

 fifteen

The second retention member can then be progressively separated from its reference position in the first direction, as the semi-fixed blade moves away from its closed position, until the second retention member adopts a so-called "release" position in the that the relative position between the first and the second retention bodies prevents them from cooperating together (in this way, they are freed from their mutual cooperation, for example by falling apart from each other). twenty

The opening movement of the semi-fixed blade can then continue until the latter adopts the desired opening position. The second retention body can recover its reference position when the semi-fixed blade exceeds a certain degree of opening.

 25

Similarly, when a closing movement of the semi-fixed leaf is requested from its opening position while the moving leaf is out of its closed position, the relative position between the first and second retention members may allow them to cooperate together by cam effect (from a certain degree of closing of the semi-fixed blade).

 30

The second retention member can then be progressively separated from its reference position according to the first direction, as the semi-fixed blade approaches its closed position until the second retention member adopts its release position.

The closing movement of the semi-fixed sheet can then continue until it adopts its closing position, in which the second retention member can recover its reference position and thus cooperate with the first retention member to retain the sheet semi-fixed in the closed position.

On the other hand, the device can be such that it consists of a first control organ designed to be integral with the mobile blade; and of a second control organ adapted to be movable mounted on the other of said objects 40 (between the semi-fixed leaf and the contour of the opening) to, during a closing movement of the mobile leaf, cooperate by cam effect with the first control body to request the withdrawal of the second retention body in the second direction (that is to say, from the reference position of the second retention body, request its movement towards its position of cooperation reinforcement).

 Four. Five

When the semi-fixed sheet adopts its closed position, the second retention member can occupy its reference position, so that the second control body can also adopt a reference position.

Thus, when the movable sheet moves towards its closed position from its opening position while the semi-fixed leaf occupies its closed position (while the second retaining body occupies its 50 reference position), the relative position between The first and second control bodies may allow them to cooperate together by cam effect (from a certain degree of closing of the movable leaf).

Therefore, as the movable sheet approaches its closed position, the second control member can be progressively separated from its reference position in such a way that it causes a movement of the second retention member towards its reinforcing position of its cooperation with the first retention body (in such a way that it requests a departure from the second retention body, from the latter's reference position, according to the second direction of travel).

On the other hand, the device may be such that it comprises return means configured so that, when the second holding member is separated from its reference position in any direction of travel between the first and second directions, return to the second retention body towards its reference position.

In the present description, it is understood that the expression "in any sense of movement between the first and second directions" indicates that the return means are such that they allow a return of the second

retaining body towards its reference position, not only when this second piece moves away from its reference position according to the first direction of travel, but also when this second piece moves away from its reference position according to the second direction of travel. In other words, the second retention body returns to its reference position by requesting the return means, not only when this part is out of its reference position when it is moved towards its position of reinforcement of the cooperation, but also when this piece is out of its reference position when it is displaced towards its position of release of cooperation.

The reference position of the second retention member can then be an equilibrium position for the return means, in which the return means exert a null resulting force on the second retention member (for example, having the means of return that are at rest when the second retaining body occupies this equilibrium position), and out of which the return means exert a non-resulting resultant force on the second retaining body, according to the direction of travel of this piece and in the sense of its approach to its equilibrium position.

 fifteen

In addition, when both the mobile and semi-fixed sheets are both in the closed position and an opening movement of the mobile sheet is initiated, the second control body can be progressively moved in the direction of its reference position (by means of the second body of retention which, due to the request that the return means exert on it, is forced to progressively approach its reference position as the moving leaf moves away from its closing position), until the moving leaf reaches a degree of sufficient opening so that the relative position of the first and second control bodies is such that the second retention body and the second control body recover their respective reference positions.

On the other hand, when the movable sheet is out of its closed position and an opening or closing movement of the semi-fixed sheet is initiated, the second retention member can move away from its reference position according to the first direction by cooperation. by cam effect with the first retention body, until the degree of opening or closing of the semi-fixed blade is sufficient for this cooperation to be released by cam effect. Therefore, the second retention body can recover its reference position by requesting that the return means exert on it.

 30

On the other hand, in some embodiments, the device may be such that a part between the first and second retention members consists of a male part adapted to fit inside a female part of which the other retention member consists, when the second retention member occupies its reference position, be such that the male part fits more within the female part when the second retention member moves away from its reference position according to the second direction, and be such that the part male is disengaged from the female part 35 when the second retention member moves away from its reference position according to the first direction.

In the present description, the notion of "male" and "female" parts must be understood in its broadest sense. In this way, the male and female parts can have any respective structure and shape, as long as at least a portion of the so-called "female" part and at least a portion of the so-called "male" part are adapted to provide a front to the other so that they can cooperate together to retain the semi-fixed blade in the closed position.

In some embodiments, the female and male parts can be provided respectively in the first retention member and in the second retention member. Four. Five

In some embodiments, the female and male parts can be provided respectively in the second retention member and in the first retention member.

On the other hand, in some embodiments, the device may be such that, the mobile and semi-fixed blades that extend substantially in a plane of the contour of the opening when the two are in the closed position, the second retention member It is adapted to move substantially parallel to the plane of the contour of the opening, when the semi-fixed blade occupies its closed position.

In some embodiments, the device may be such that the second retention member is adapted to be rotatably mounted on the other of said objects (semi-fixed sheet or contour of the opening).

In some embodiments, the device may be such that the second retention member is adapted to be slidably mounted on the other of said objects.

 60

In some embodiments, the device may be such that, the semi-fixed blade being adapted to move around a rotation axis, the second retention member is adapted to move, to choose, according to a direction of travel parallel to this axis of rotation, or according to a direction of travel perpendicular to this axis of rotation.

 65

On the other hand, the second retention member and the second control member may be adapted to engage in displacement. This notion of coupling must be interpreted in its broadest sense in the present description.

Thus, in some embodiments, the device may be such that the second retention member and the second control member engage in displacement with a clearance such that it allows relative displacement between the second retention member and The second control body. In particular, these two pieces may be adapted to describe different or similar paths.

In some embodiments, the device may be such that the second retention member and the second control organ are integral in displacement.

In some embodiments, the device may be such that the second retention body and the second control body are two separate pieces, in solidarity or not in displacement (to be chosen).

 fifteen

In some embodiments, the device may be such that the second retention member and the second control member are formed (in one piece) in a single piece called common, which simplifies the device and reduces manufacturing costs .

In some embodiments, the common part consists of a rod that is adapted to be mounted slide 20 on the other of said objects, and which comprises a first end defining the second retaining member.

In some embodiments, the rod comprises a second end opposite the first and in the extension of which the second control member is formed.

 25

On the other hand, in some embodiments, the device may be such that it comprises a first and second supportive surfaces in displacement with the second retention member, and such that the return means are configured to, when the second organ of retention it moves away with respect to its reference position respectively in the first direction and in the second sense, exerting its recoil respectively on the first support surface and on the second support surface. 30

The first and second support surfaces can be, to choose, some elements added to fix on the second retention member, or be formed in one piece with the second retention member.

In some embodiments, the device may be such that the second retaining member consists of at least one hole in which the return means are housed at least in part.

In some embodiments, the device may be such that at least one of the two surfaces (and even both) between, at least, the first support surface and the second support surface is housed at least in part in the recess. . 40

In some embodiments, the device may be such that the interior wall of the recess has a first portion defining a surface between, to choose, the first and second support surfaces (thus forming said surface in one piece with the second retention body).

 Four. Five

In some embodiments, the device may be such that this interior wall of the recess has a second portion defining the other surface between the first and the second bearing surfaces (thus forming said other surface in one piece with the second retention body).

In some embodiments, the gap may have an open bottom. In others, this bottom may be closed (so that the gap is blind).

In some embodiments, the device may be such that the second retaining member comprises a protruding part having two portions that respectively define the first and second bearing surfaces (which are thus formed in one piece with the second retention body). 55

In some embodiments, the device may be such that it comprises a first return element configured to, when the second retention member moves away from its reference position in the second direction, to return the second retention element to its reference position .

 60

In some embodiments, the device may be such that the first return element comprises a first end adapted to cooperate with the second bearing surface for, when the second retention member moves away from its reference position according to the second direction, return the second retention body to its reference position.

 65

In some embodiments, the device may be such that the first return element is further configured to, when the second retention member moves away from its reference position according to the first direction, return the second retention member towards its reference position

In some embodiments, the device may be such that the first return element comprises a second end adapted to cooperate with the first bearing surface for, when the second retention member moves away from its reference position according to the first direction , return the second retention body to its reference position.

In some embodiments, the device may be such that the first return element is an elastic return element adapted to deform elastically at least according to a deformation direction, and such that the first and second ends of the first return element they separate in this deformation direction.

In some embodiments, the device may be such that the first and second bearing surfaces are designed to separate in this deformation direction. fifteen

In some embodiments, the first return element may be a spring, for example a spiral, volute or sheet spring (to be chosen).

In some embodiments, the device may be such that the return means comprise a second return element that is separated from the first return element and that is configured to, when the second retention member moves away from its reference position according to the first sense, return the second retention body to its reference position.

In some embodiments, the device may be such that the second return element comprises a first end adapted to cooperate with the first bearing surface for, when the second retention member moves away from its reference position according to the first direction , return to the second retention body to its reference position.

In some embodiments, the first and second return elements may be similar. More particularly, the second return element may have one or several characteristic (s) among all the characteristics set forth in the present description related to the first return element.

In some embodiments, the device may be such that the return means are configured to return the second retention member to its reference position with a resulting return force that has a first level when the return is made from a distance of the second retention member according to the first direction, and a resultant return force having a second level different from the first when the return is made from a distance from the second retention member according to the second direction.

In some embodiments, a level between, to choose, the first level and the second level (for example the first 40 level) has a value greater than the other level (for example the second level).

In some embodiments for which the first and second return elements are expected to be both elastic return elements of the type described above, these two elements may have different stiffnesses according to their respective deformation directions. Four. Five

In some of these embodiments, the stiffness of the first return element may be, to be chosen, less than or greater than that of the second return element.

In some embodiments, the first retaining member is adapted to be fixedly mounted with respect to the first of said objects (semi-fixed sheet or contour of the opening).

In some embodiments, the first retention member is adapted to be movable mounted on the first of said objects, for example to facilitate cooperation between the first and second retention members to retain the semi-fixed sheet and / or the reinforcement of this cooperation (when the second retention body 55 moves away from its reference position according to the second direction) and / or the release of this cooperation (when the second retention body moves away from its reference position according to the first direction ) and / or the realization of cooperation by cam effect between the first and second retention bodies to request the removal of the second retention body according to the first direction.

 60

In some embodiments, the device may be such that the first control member is designed to be fixed with respect to the movable sheet.

The first control organ can therefore be defined, to choose, by a portion of the mobile leaf itself (in this case the first control organ and the mobile leaf are formed in one piece), or be a 65 piece added adapted to be fixed on the movable sheet.

Said added piece may be adapted to be fixed on the movable sheet, to be chosen, directly on the latter, or by means of a second added piece.

The added piece that defines the first retention member or this second added piece (to choose), can be adapted to be placed in a recess of the movable sheet. 5

In some embodiments, the device may be such that the first control member is adapted to be movable mounted on the movable sheet, for example to facilitate cooperation by cam effect between the first and second control elements.

 10

In some embodiments, the device can be such that it comprises a guide piece adapted to be fixed on the other of said objects (semi-fixed sheet or contour of the opening) and on which the second retention member is movable.

In some embodiments, the device may be such that it comprises a third and fourth surfaces of 15 supportive support for the guide piece, and such that the return means are configured to, when the second retention member moves away with respect to their reference position respectively according to the first direction and in the second direction, cooperate respectively with the third support surface and with the fourth support surface to request the second retention member towards its reference position.

 twenty

The third and fourth support surfaces can be, to choose, some added elements to be fixed on the guide piece, or be formed in one piece with the guide piece.

In some embodiments, the device may be such that the guide piece comprises a gap, and such that at least one of the two surfaces (and even both) between, to choose, the third bearing surface and the fourth Support surface is housed at least partially within this gap.

In some embodiments, the device may be such that the inner wall of this recess has a first portion defining a surface between, to choose, the third and fourth support surfaces (thus being said surface formed of a single piece with the guide piece). 30

In some embodiments, the device may be such that this inner wall of this recess has a second portion defining the other surface between the third and fourth bearing surfaces (thus being said surface formed in one piece with the guiding piece).

 35

In some embodiments, the device may be such that the guide piece comprises a protruding part having two portions that respectively define the third and fourth bearing surfaces (which are thus formed in one piece with the piece of guided).

In some of the embodiments that implement the first return element mentioned above, the device may be such that the second end of the first return element is adapted to cooperate with the fourth bearing surface for, when the second organ of retention moves away from its reference position according to the second direction, return the second retention body to its reference position.

In some of these embodiments, the device may be such that the first end of the first return element is adapted to cooperate with the third support surface for, when the second retention member moves away from its reference position according to the First sense, return the second retention body to its reference position.

In some of the embodiments that implement a first elastic return element adapted to deform elastically at least according to a deformation direction, the device may be such that the third and fourth bearing surfaces are designed to separate in this direction of deformation.

In some of the embodiments that implement the second return element mentioned above, the device may be such that the second end of the second return element is adapted to cooperate with the third bearing surface for, when the second organ of retention moves away from its reference position according to the first direction, return the second retention body to its reference position.

In some embodiments, the device may be such that the guide piece is a common guide piece 60 on which the second control member is also movable, which in particular makes it possible to assemble / disassemble the device .

In some embodiments, in order in particular to reduce the size of the device and thus make it more discreet, the device may be such that it consists of a latch adapted to be movable mounted on the movable sheet 65; and of an associated notch that is formed in one piece with the guide piece, and that is adapted

to cooperate with the latch to hold the movable blade in the closed position.

In some embodiments, the device may be such that it consists of other return means adapted to request a displacement of the latch in the direction of its engagement with the notch, and such that the latch and the notch are adapted to cooperate by effect of cam to, during a closing movement of the movable blade, 5 cause a displacement of the latch in the opposite direction to the direction of its engagement.

In this way, this cooperation due to the cam effect of the latch with its associated notch can allow a closing of the movable leaf and its locking in the closing position by a simple click of the movable leaf, without having to operate its handle. 10

In some embodiments, the device may be such that the first retention member is adapted to be integral with the contour of the opening near a meeting point of the two sheets, and such that the second retention member and the second Control body are adapted to be mounted mobile on the semi-fixed blade.

 fifteen

Thus, the first of said objects mentioned above may be the contour of the opening, while the other of said objects may be the semi-fixed sheet.

In some of these embodiments, the device may be such that the first retaining member is adapted to be directly integral with the contour of the opening. twenty

In other of these embodiments, the device may be such that the first retention member is adapted to be integral with the contour of the opening by means of a frame designed to be fixed to the contour of the opening and on which movable mounts are mounted. the mobile and semi-fixed sheets.

 25

In some of the embodiments that implement the guiding part mentioned above, the device may be such that this guiding part is adapted to be placed at least partly in the recess of the semi-fixed sheet.

In some of these embodiments, the device may be such that this guide piece is adapted to at least partly stay inside a groove made in the thickness of an edge of the semi-fixed blade (for example, within a groove called "European" which conventionally consist of some sheets).

In some embodiments, the device may be such that the first retention member is adapted to be integral with the semi-fixed blade, and such that the second retention member and the second control member are adapted to be mounted movable on the contour of the opening near a meeting point of the two leaves.

Thus, the first of said objects mentioned above may be the semi-fixed sheet, while the other of said objects may be the contour of the opening.

 40

In some of these embodiments, the device may be such that at least one of the two pieces (and even the two) between, to choose, the second retaining member and the second control member is adapted to be directly integral with The contour of the opening.

In other of these embodiments, the device may be such that at least one of the two pieces (and even the two) between the second retention member and the second control member is adapted to be integral with the contour of the opening by means of a frame designed to be fixed to the contour of the opening and on which the mobile and semi-fixed sheets are mounted mobile.

The characteristics and advantages already mentioned, as well as others, will be better shown with the reading of the detailed description that follows, of some embodiments that lack any limiting character and that are proposed only for illustrative purposes. This detailed description refers to the attached drawings.

Brief description of the drawings

 55

The attached drawings are schematic and are not necessarily to scale, they are intended primarily to illustrate the principles mentioned in this description. In the attached drawings:

- Figure 1 illustrates a partial perspective view of a semi-fixed sheet in the closed position, as well as of a first retention member, a second retention member and a second control member according to a first embodiment example of conformity with the present description;

- Figure 2 shows a sectional view of Figure 1, in a vertical cut plane, transverse to the plane of the opening contour, and located near the meeting point of the mobile and semi-fixed sheets, as well as a detail view which shows the cooperation of this first and this second retention body;

- Figure 3 is a view similar to that of Figure 1, according to another perspective for showing the movable sheet during its closing movement, as well as a first control organ according to this first embodiment, not

the semi-fixed sheet being represented in this figure;

- Figure 4 is a view similar to that of Figure 3, in which the movable sheet has finished its closing movement;

- Figure 5 is a sectional view similar to that of Figure 2 accompanied by a detail view, illustrating the reinforcement of the cooperation between the first and second retention members when the movable sheet is in the closed position as It is illustrated in Figure 4; 5

- Figure 6 shows a sectional view of the closed movable sheet, in a plane of vertical cut and parallel to the plane of the contour of the opening;

- Figure 7 is a front view of the closed semi-fixed sheet, the movable sheet not being represented in this view;

- Figures 8A to 8D represent sectional views, in a vertical cutting plane, transverse to the plane of the opening contour, and showing the inside of a guide piece of the second retention member, 10 illustrating these views respectively a Beginning of cooperation by cam effect between the first and second retention bodies during the closing of the semi-fixed leaf, a release of the retention cooperation during the closing / opening of the semi-fixed leaf, a retention cooperation when the semi-fixed leaf is closed, and a reinforcement of this retention cooperation when the mobile and semi-fixed sheets are both closed;

- Figure 9 shows a sectional view, in a vertical cutting plane, parallel to the plane of the contour of the opening, the sheets being mobile and semi-fixed in their respective closing positions and not shown in this view;

- Figure 10 is a sectional view along X-X of Figure 9;

- figure 11 represents a view similar to the view of figure 9, when the movable leaf is open while the semi-fixed leaf experiences an opening or closing movement; twenty

- Figure 12 is a sectional view along XII-XII of Figure 11;

- Figures 13A to 13C show sectional views respectively similar to those of Figures 8B to 8D, which illustrate a second embodiment according to the present description.

Detailed description of some embodiments 25

A retention device according to a first embodiment according to the present description is shown in Figures 1 to 12.

According to this example, this device is a retention device for a semi-fixed sheet 2 (the sheet shown in particular in Figure 1) that cooperates with a moving sheet 1 (the sheet shown in particular in Figure 3) to close an opening (not represented).

According to this example, the movable sheets 1 and semi-fixed 2 are movable mounted on a frame 3 that is designed to be fixed (by any conventional means) to the contour of the opening. 35

According to this example, the movable sheets 1 and semi-fixed 2 are both adapted to rotate about respective axes of rotation between respective opening and closing positions.

In particular, these respective axes of rotation are both collinear. Even more particularly, these axes of rotation 40 are parallel to the vertical direction.

According to this example, the frame 3 comprises two crossbars and two uprights.

In particular, the two crossbars are horizontal (they are separated according to the vertical direction), and the two uprights 45 are vertical (they are separated according to the horizontal direction).

According to this example, the device comprises in particular a first and a second retention members 10 and 35, a first and a second control members 70 and 40, and return means 60.

 fifty

According to this example, the first retention member 10 is adapted to be integral with the contour of the opening near a meeting point of the two sheets 1 and 2.

According to this example, the first retaining member 10 is adapted to be fixedly mounted with respect to the contour of the opening. 55

More particularly, the first retaining member 10 is adapted to be fixed on the frame 3, for example on one of the two crossbars of the frame 3, as illustrated in particular in Figures 1 and 3.

According to this example, the second retention member 35 is adapted to be movable mounted on the semi-fixed sheet 2 60 so that it can occupy a reference position Z0 (see in particular Figures 2 and 8C) in which the first and second retaining bodies 10 and 35 are adapted to cooperate together to retain the semi-fixed blade 2 in the closed position, and in such a way that it can move away from this reference position Z0, on the one hand according to a first direction of travel N to allow a release of said cooperation to authorize an opening or closing movement of the semi-fixed sheet 2 (see in particular Figure 8B), and on the other hand according to a second direction of travel P opposite to the first N to allow a cooperation reinforcement of the first and

the second retention members 10 and 35 to more firmly retain the semi-fixed blade 2 in the closed position (see in particular Figures 5 and 8D).

According to this example, the first control member 70 is designed to be integral with the movable sheet 1.

 5

According to this example, the first control member 70 is designed to be fixed with respect to the movable sheet 1.

More particularly, in this example (see in particular Figures 3 and 9), the device comprises a first added piece 70 that materializes the first control member; and a second added piece 75 on which the first added piece 70 is fixed (by means of any conventional fixing means, for example one or 10 several screws) and which is adapted to be fixed on the movable sheet 1 (also by means of any conventional fixing means, for example one or more screws).

According to this example, the second added part 75 is adapted to be placed at least in part in the recess of the movable sheet 1. 15

More particularly, the second added piece 75 is adapted to be at least partly housed in a groove 4 (which can be seen in Figure 3) made in the thickness of an edge of the movable sheet 1 designed to face the semi-fixed sheet 2, when the mobile and semi-fixed sheets 2 occupy their respective closing positions.

 twenty

In this example, this slot 4 is a slot called "European" which is made in the thickness of this edge of the movable sheet 1 (in particular, in the thickness of the vertical edge of the movable sheet 1 designed to face the sheet semi-fixed 2, when the mobile sheets 1 and semi-fixed 2 occupy their respective closing positions).

According to this example, the second control member 40 is adapted to be movable mounted on the semi-fixed blade 2. 25

According to this example, the second retention member 35 and the second control member 40 are integral in displacement.

More particularly, in this example, the second retention member 35 and the second control member 40 30 are formed in one piece called common part 30 (see in particular Figures 8A to 8D).

According to this example, this common piece 30 is a globally elongated piece (in particular a rod) that is adapted to be slidably mounted on the semi-fixed sheet 2.

 More particularly, in this example, the common part 30 is adapted to move along a direction of travel parallel to the axis of rotation of the semi-fixed sheet 2.

Thus, in this example, considering that the movable sheets 1 and semi-fixed 2 extend substantially parallel to the plane of the contour of the opening when the two are in the closed position, the common part 30 is adapted to move substantially in parallel to the plane of the contour of the opening, when the semi-fixed leaf 2 occupies its closed position.

Even more particularly in this example, the common part 30 is adapted to move vertically.

 Four. Five

Thus, in this example, each of the two pieces between the second retention member 35 and the second control member 40 are adapted to move in this direction of travel, in particular to move vertically.

Furthermore, in this example, each of these two pieces 35 and 40 are adapted to move substantially 50 parallel to the plane of the opening contour, when the semi-fixed sheet 2 occupies its closed position.

According to this example, the common part 30 comprises a first end 35 defining the second retaining member; and a second end 40 opposite the first (according to the direction of travel of the common part 30 in this example) and in the extension of which the second control member is formed. 55

According to this example, the first retention member 10 comprises a female part, and the second retention member 35 defines a male part adapted to fit within this female part when the second retention member occupies its reference position Z0 while the sheet semi-fixed 2 is in the closed position.

 60

According to this example, the first retaining member 10 is a notch adapted to be integral with the contour of the opening.

More particularly, as illustrated in Figure 2, this notch comprises a front wall 12, which is raised in front of the second retaining member 35, when the semi-fixed sheet 2 is in the closed position, and that 65 is adapted to cooperate with the second retention member 35 to oppose the opening of the semi-fixed blade

2.

Furthermore, according to this example, the notch comprises a rear wall 16, which is raised behind the second retention member 35, when the semi-fixed blade 2 is in the closed position, and which is adapted to cooperate with the second retention member 35 to oppose an additional movement of the semi-fixed sheet 2 in the direction 5 of its closure while this sheet already occupies a predetermined position of closure.

These front 12 and rear walls 16 define the female part within which the male part of the second retention member 35 is adapted to fit. It should be noted that the presence of the rear wall 16 is optional, so that the female part could also, without leaving the frame of the present description, be defined only by the front wall 12 of the notch.

According to this example, when the semi-fixed sheet 2 is in the closed position while the mobile sheet 1 is in the open position with a sufficient degree of opening, the second retention member 35 occupies its reference position Z0. fifteen

In this configuration, the cooperation of the first and second retaining members 10 and 35 defines a hard point for holding the semi-fixed sheet 2 in the closed position, which prevents accidental opening of the latter, but which, when desired Intentionally an opening, however, can easily be overcome by a simple request in displacement of the semi-fixed sheet 2 towards its opening position to allow this opening. twenty

According to this example, in order to make the release of this hard holding point more comfortable, it is provided that the first and second retention members 10 and 35 are configured so that, when the opening movement of the semi-fixed leaf 2 is requested from its closed position, cooperate by cam effect to request a distance from the second retention member 35 with respect to its reference position Z0 according to the first direction N (see in particular Figure 8B).

According to this example, as illustrated in particular in Figure 2, the front wall 12 of the notch has two opposite surfaces: an inner surface 13, which is that of the two surfaces that is closest to the second retaining member 35 when the semi-fixed blade 2 is in the closed position; and an outer surface 14, 30 which is that of the two surfaces that is closest to the second retaining member 35 when the semi-fixed sheet 2 is out of its closed position (as illustrated for example in Figure 8A).

According to this example, the inner surface 13 has a first portion 13A which, in the direction of travel of the second retention member 35 with respect to the semi-fixed sheet 2 is further away from the second retention member 35; and a second portion 13B that extends the first portion 13A and that is less remote from the second retention member 35.

In this example, the first and second portions 13A and 13B are substantially flat and not coplanar.

 40

More particularly, the first portion 13A is substantially parallel to this direction of travel (this is in particular substantially vertical in this example).

On the other hand, the second portion 13B is inclined with respect to this direction of travel.

 Four. Five

More particularly, it defines a ramp portion adapted to cooperate by cam effect with the second retention member 35 to request a movement of the latter, from its reference position Z0 and when the opening of the semi-fixed leaf 2 is requested , towards a release position ZN (see Fig. 8B) in which the second retaining member 35 protrudes less than in its reference position Z0 in such a way that it allows to exceed the front wall 12 of the notch to allow the opening of the semi-fixed blade 2. 50

On the other hand, in this example, when the second retention member 35 adopts its release position ZN (that is, when the second retention member is away from its reference position Z0 according to the first direction N), the male part defining this second piece is disengaged from the female part comprising the first retaining member 10. 55

In particular, when the second retaining member 35 occupies its release position ZN, the first end 35 (which defines the second retaining member) of the common piece 30 is no longer facing the inner surface 13 of the front wall 12 of the notch (the first end 35 is away from this surface so as to be able to exceed the front wall 12 in such a way as to allow the opening of the semi-fixed sheet 2). 60

In this example, in order to further facilitate this cooperation by cam effect and limit the wear phenomena between the first and the second retention member, the first end 35 of the common piece 30 has a convex shape (in particular a rounded shape) adapted to come into contact with the ramp portion 13B of the notch, during an opening movement of the semi-fixed blade 2, to cause the movement of the common part 65 towards its release position ZN.

On the other hand, in this example, in order to make the realization of the hard holding point more comfortable, it is provided that the first and second retention members 10 and 35 are configured to, when the closing movement of the Semi-fixed blade 2 from its opening position, cooperate by cam effect to request a distance from the second retention member 35 with respect to its reference position Z0 according to the first direction N (see in particular Figures 8A and 8B). 5

According to this example, as illustrated in particular in Figure 2, the outer surface 14 of the front wall 12 of the notch has an inclined portion with respect to the direction of travel of the second retaining member.

 10

More particularly, the outer surface 14 has a ramp portion adapted to cooperate by cam with the second retention member 35 to request a movement of the latter, from its reference position Z0 and when the closure of the semi-fixed leaf 2 towards its release position ZN in such a way that it allows the front wall 12 of the notch to be exceeded to allow the closing of the semi-fixed leaf 2.

 fifteen

According to this example, the first end 35 of the common piece 30, which is convex in shape, is adapted to come into contact with this ramp portion 14, during a closing movement of the semi-fixed leaf 2, to cause the displacement of the common piece 30 towards its release position ZN.

On the other hand, according to the illustrated example (see in particular Figures 3 to 5), the first and second control elements 70 and 40 are configured to, during the closing of the movable sheet 1 (see the arrow in the figure 3) While the semi-fixed leaf 2 occupies its closed position, cooperate together by cam effect to request a distance from the second retention member 35 with respect to its reference position Z0 according to the second direction P.

More particularly, the first and second control members 70 and 40 are adapted to cooperate by cam effect to request a movement of the second retention member, from a reference position Z0 and during a closing movement of the leaf mobile 1, towards a reinforcement position of the cooperation ZP (see Figure 8D) in which the second retention member 35 protrudes more than in its reference position Z0 in such a way that it reinforces its cooperation with the first retention member 10 to hold the semi-fixed blade 2 more firmly in the closed position. 30

In this example, when the second retention member 35 adopts its position of reinforcement of the cooperation ZP (that is, when the second retention member is away from its reference position Z0 according to the second direction P), the male part that defines this second piece fits more within the female part comprising the first retaining member 10. 35

More particularly, when the second retention member adopts its position of reinforcement of the cooperation ZP, the first end 35 of the common piece 30 faces the first portion 13A of the front wall 12 of the notch (see in particular the figure 5).

 40

In this example, in order to allow cooperation between the first and second control bodies 70 and 40, it is envisioned that the first control body 70 is adapted to protrude from the movable sheet 1 to exceed the latter in the direction of the semi-fixed sheet 2, when the mobile sheets 1 and semi-fixed 2 occupy their respective closing positions (see in particular figure 6).

 Four. Five

On the other hand, the second control member 40 is adapted to protrude from the semi-fixed sheet 2 to exceed the latter in the direction of the mobile sheet 1, when the mobile sheets 1 and semi-fixed 2 occupy their respective closing positions (see in particular the figure 7).

More particularly, the second control member 40 protrudes from the second end of the common part 50 30.

According to this example, in order to facilitate the cooperation by cam effect of the first and second control bodies 70 and 40, at least one of these two parts (in particular the two in this example) has a convex shape (in particular a rounded shape) adapted to come into contact with the other of these two pieces 55 so as to, during the closing of the movable sheet 1, cause a cam movement of the second retention member 35 towards its reinforcing position ZP of its cooperation with the first retention body 10.

On the other hand, according to this example, the device comprises a guide piece 50 adapted to be fixed on the semi-fixed sheet 2 and on which the second retention member 35 is mounted movably. 60

According to this example, since the second retention member 35 and the second control member 40 are formed in one piece 30, the guiding part 50 is, in this example, a common guiding piece on which it is also mounted movable the second control body 40.

 65

More particularly, in this example, the guide piece 50 comprises a front wall 52 designed to be closest to the movable sheet 1; and a rear wall 54 designed to be the furthest from the movable sheet 1, when the movable sheets 1 and semi-fixed 2 occupy their respective closing positions (see in particular Figures 4 and 9).

 5

In this example, the front and rear walls 52 are substantially flat and parallel to the direction of travel of the common part 30, such that they allow the latter to be inserted and sliding between these two walls 52 and 54.

According to this example, the guide piece 50 is adapted to be placed at least in part in a groove 6 10 (which can be seen in Figure 1) made in the thickness of an edge of the semi-fixed leaf 2 designed to face the mobile sheet 1, when mobile sheets 1 and semi-fixed 2 occupy their respective closing positions.

In this example, this groove 6 is a groove called "European" which is made in the thickness of this edge of the semi-fixed leaf (in particular, in the thickness of the vertical edge of the semi-fixed leaf 2 designed to be 15 facing the leaf mobile 1, when the mobile 1 and fixed 2 sheets occupy their respective closing positions).

In this example, the guide piece 50 is adapted to be fixed to the semi-fixed sheet by any conventional means (in particular by means of one or several screws).

 twenty

According to this example, the second retaining member 35 is adapted to protrude from the semi-fixed sheet 2 to exceed the latter in the direction of the contour of the opening (in particular in the direction of a crossbar of the frame 3 in this example) when the semi-fixed sheet 2 It occupies its closing position.

On the other hand, the second retention member 35 is adapted to occupy at least three different positions. 25

The first of these three positions corresponds to the reference position Z0 mentioned above. In this position, the second retention member 35 forms a first relief whose height difference allows cooperation with the first retention member 10 such that the semi-fixed sheet 2 is retained in the closed position.

 30

The second of these three positions corresponds to the aforementioned release position ZN, which is obtained by moving away from the second retention member 35, with respect to its reference position Z0, according to the first direction N. This position can be achieved by cooperation by cam effect of the first and second retention members 10 and 35 when an opening or closing movement of the semi-fixed blade 2 is requested. Furthermore, in this release position ZN, the second retention member 35 forms a second relief 35 whose height difference is smaller than that of the first relief (the second retention member 35 then protrudes less in this release position ZN than in its reference position Z0) to allow a release of the retention cooperation between the first and the second retention member 10 and 35 to allow said movement of the semi-fixed sheet 2.

 40

In this example, even when the second retention member 35 is removed from its reference position Z0 according to the first direction N, the second retention member 35 protrudes from the semi-fixed sheet 2 to extend in the direction of the contour to the opening (when the semi-fixed blade 2 occupies its closing position).

The last of these three positions corresponds to the reinforcement position of the cooperation ZP mentioned above, which is obtained by moving away from the second retention member 35, with respect to its reference position Z0, according to the second direction P. This This position can be obtained by means of the cam-effect cooperation of the first and second control members 70 and 40 during a closing movement of the movable leaf 1 while the semi-fixed leaf 2 occupies its closing position. In addition, in this reinforcement position ZP, the second retention member 35 forms a third relief whose height difference is greater than that of the first relief (the second second retention member 35 protrudes more then in this reinforcing position of the cooperation ZP than in its reference position Z0) to allow a firmer retention of the semi-fixed sheet 2 in the closed position.

Therefore, in this example, the reference position Z0 constitutes an intermediate position, according to the direction of travel of the second retaining member 35 with respect to the semi-fixed sheet 2, between its release position 55 ZN and its reinforcement position of the ZP cooperation.

Thus, by identifying the distance, according to the direction of travel of the second retaining member 35, between the end of the latter and the point of the guide piece 50 closest to this end, it is obtained, in this example : ZN <Z0 <ZP (see in particular Figures 8A to 8D). 60

On the other hand, according to this example, the device comprises return means 60 configured for, when the second retaining member 35 moves away from its reference position Z0 according to any direction of travel between the first and second directions N and P , return the second retention member 35 to its reference position Z0. 65

According to this example, the return means are composed of a first return element 60 that is configured to return the second retaining member 35 to its reference position Z0, on the one hand, when this part 35 moves away from its reference position Z0 according to the first direction N and, on the other hand, when this part 35 moves away from its reference position Z0 according to the second direction P.

 5

In this example, the first return element 60 is an elastic return element adapted to deform in a deformation direction.

The first return element has a first and second ends 61 and 62 separated according to this deformation direction. 10

According to this example, this deformation direction is designed to be parallel to the direction of travel along which the second retaining member 35 is adapted to move relative to the semi-fixed sheet 2.

 fifteen

In particular, the deformation direction of the first return element 60 is designed to be parallel to the vertical direction.

In this example, the common part 30 has a hole 31 inside which the first return element 60 is at least partly adapted to be housed. twenty

More particularly, as illustrated in Figure 9, this gap 31 has an open bottom. In this example, the gap 31 constitutes an opening that crosses the common piece 30 in its entire thickness.

According to this example, the device comprises a first and second support surfaces 36 and 37 in solidarity with the second retention member 35. The return means 60 are configured to, when the second retention member 35 moves away with respect at its reference position Z0 respectively according to the first direction N and according to the second direction P, respectively exert its recoil directly on the first support surface 36 and directly on the second support surface 37.

 30

In this example, these first and second bearing surfaces 36 and 37 are formed in one piece with the common piece 30.

More particularly, this first and second bearing surfaces 36 and 37 materialize in a first and a second portion of the interior wall of the recess 31 that are separated in the direction of travel of the second retaining member 35 with respect to the semi-fixed blade 2.

On the other hand, according to this example, the device comprises a third and a fourth support surfaces 55 and 56 in solidarity with the guide piece 50. The return means 60 are configured to, when the second retention member 50 moves away with respect at its reference position Z0 respectively according to the first direction N and 40 according to the second direction P, cooperate respectively with the third support surface 55 and with the fourth support surface 56 to request the second retaining member 35 towards its reference position Z0.

In this example, this third and fourth bearing surfaces 55 and 56 are formed in one piece with the guide piece 50. 45

More particularly, the guide piece 50 has a recess 57. These third and fourth bearing surfaces 55 and 56 materialize in a first and a second portion of the interior wall of the recess 57 that are separated in the direction of travel of the second retention member 35 with respect to the semi-fixed blade 2.

 fifty

According to this example, the gap 57 is made in the rear wall 54 of the guide piece 50.

More particularly, the gap 57 has an open bottom. In this example, this gap 57 constitutes an opening that crosses the rear wall 54 in its entire thickness.

 55

According to this example, when the second retaining member 35 occupies its reference position Z0, the first and second ends 61 and 62 of the first return element 60 rest respectively at least against the second bearing surface 37 and against the first surface of support 36 of the second retention member 35 (of the common part 30 in this example).

 60

More particularly, the respective dimensions of the recess 31 of the common piece 30 and the recess 57 of the guide piece 50, in the direction of travel of the second retaining member 35, are provided such that, when the second organ of retention 35 occupies its reference position Z0, the first and second bearing surfaces 36 and 37 are flush respectively with the fourth and third bearing surfaces 55 and 56. Therefore, when the second retention member 35 occupies its reference position Z0, the first and second 65 ends 61 and 62 of the first return element 60 also rest respectively against the third surface

of support 55 and against the fourth support surface 56 of the guide piece 50.

According to this example, as illustrated in particular in Figures 9 and 10, to return the second retaining member 35 towards its reference position Z0 when this piece 35 moves away from its reference position Z0 according to the second direction P, the first end 61 of the first return element 60 cooperates with the second support surface 37 of the common part 30, while its second end 62 cooperates with the fourth support surface 56 of the guide piece 50. Therefore, in this example , this first end 61 is separated from the third bearing surface 55, while this second end 62 is separated from the first bearing surface 36.

 10

According to this example, as illustrated in particular in Figures 11 and 12, to return the second retaining member 35 towards its reference position Z0 when this part 35 moves away from its reference position Z0 according to the first direction N, the first end 61 of the first return element 60 cooperates with the third support surface 55 of the guide piece 50, while its second end 62 cooperates with the first support surface 36 of the common part 30. Therefore, in this example, this first end 61 is then separated from the second support surface 37, while this second end 62 is separated from the fourth support surface 56.

In this example, the first return element 60 is adapted to work in compression so that, when the second retention member 35 moves away from its reference position Z0 according to the first direction N, request the movement of this piece 35 towards its position Reference Z0.

In this example, the first return element 60 is adapted to work in compression so that, when the second retaining member 35 moves away from its reference position Z0 according to the second direction P, request the displacement of this piece 35 towards its position of reference Z0. 25

According to this example, the respective dimensions of the recess 31 of the common part 30 and the recess 57 of the guide piece 50, in the direction of travel of the second retention member 35, are provided in such a way that the second retention member 35 is pushed, when it is removed from its reference position Z0 according to the first direction N, with a resulting return force (exerted by the first return element 60) of a level 30 substantially identical to the resulting return force exerted on the second retention member 35 when the latter moves away from its reference position Z0 according to the second direction P.

However, it could be envisaged, without departing from the scope of the present description, to slightly modify this arrangement so as to obtain a substantially greater return force in one direction (between, to choose, the first direction N and the second direction P) with Regarding the other.

In this example, the first return element 60 consists of a spring, in particular a spiral spring, adapted to deform according to a deformation direction, and having opposite ends in this deformation direction that are adapted to materialize the first and the second ends 61 and 62 40 mentioned above.

In this example, the device consists of a latch 80 adapted to be movable mounted on the movable sheet 1; and an associated notch 90 which is formed in one piece with the guide piece 50, and which is adapted to cooperate with the latch 80 to hold the movable sheet 1 in the closed position (see in particular Figures 3 and 45 9 ).

Since, according to this example, this guide piece 50 is designed to be integral with the semi-fixed leaf 2, the cooperation of the latch 80 with its notch 90 allows the mobile leaves 1 and semi-fixed 2 to be locked together in their respective closing positions. fifty

According to this example, the latch 80 is adapted to be integral with a bar 82 that is adapted to be slidably mounted on the movable sheet 1 (in particular according to a direction of movement parallel to the direction of movement of the second retention member 35 or parallel to the axis of rotation of the movable blade 1).

 55

According to this example, the bar 82 is designed to be housed within the slot 4 of the movable sheet 1 mentioned above.

The bar 82 (mobile) is housed behind the second added piece 75 (which here serves as a fixed bar), in particular supported against the latter. The bar 82 is slidable on the movable sheet 1 by means of a slot that has the latch 80 which is adapted to cooperate with the edges of an opening 76 made in the second added piece 75 (see in particular Figures 3 and 9 ).

This bar 82 is designed to be requested in displacement, at least in the sense of disengagement of the latch 80 with respect to its notch 90, by any conventional means, in particular by means of an actuator, as a handle (not shown).

According to this example, the device consists of other return means 100 adapted to request the latch 80 in the direction of its coupling with the notch 90 (ie in the opposite direction to the decoupling direction of the latch 80 with respect to its notch 90) .

In this example, these other return means 100 consist of a return element, in particular a spring (in particular a spiral spring) adapted to cooperate, on the one hand with a bearing surface having the bar 82 and, by another part, with another support surface presenting the second added piece 75.

According to this example, the latch 80 and the notch 90 are adapted to cooperate by cam effect so that, during a closing movement of the movable sheet 1 while the semi-fixed blade 2 is in the closed position, causing a displacement of the latch 80 in the opposite direction to the direction of its coupling.

According to this example, the notch 90 is formed in one piece with the front wall 52 of the guide piece 50.

 fifteen

According to this example, the notch 90 has at least a first ramp portion 92 to facilitate the realization of this cooperation by cam effect.

In this example, the notch 90 has a second ramp portion 94 symmetrical to the first in a plane perpendicular to the direction of travel of the latch 80 with respect to the movable sheet (see in particular Figure 20), such that allows the cooperation by cam effect to be carried out regardless of the direction of coupling of the latch 80 with its notch 90.

In this example, notch 90 still has two other ramp portions 96 and 98 that are respectively symmetrical to ramp portions 92 and 94 in a plane parallel to the direction of travel of latch 80, in such a way that the guide piece 50 both near the first of the two ends of the semi-fixed sheet in the direction of travel of the second retaining member 35 with respect to the semi-fixed sheet 2 (the lower horizontal edge of the semi-fixed sheet 2 in this example), as near the other of the two edges (which then corresponds to the upper horizontal edge of the semi-fixed sheet 2).

 30

Indeed, although an arrangement of the retention device near the first of the two ends of the semi-fixed sheet 2 according to the direction of travel of the second retention member 35 has not been represented in this example, it could also be provided, without leaving the Within the framework of the present description, arrange the retention device near the other of these two ends.

 35

On the other hand, in this first embodiment example, return means of the second retention member 35 towards its reference position Z0 which implement a single return element, in particular the first return element 60 mentioned above, have been illustrated .

It could also be provided, without departing from the framework of the present description, return means comprising several separate return elements.

In particular, a retention device according to a second embodiment according to the present description has been illustrated in Figures 13A to 13C.

 Four. Five

This second example is identical in all to the first (so that the description of the elements common to the two examples will not be repeated for the sake of conciseness of the present description, and will carry the same numerical references in Figures 13A to 13C), with the exception that the device according to this second example also comprises a second return element 65 separated from the first return element 60.

 fifty

According to this example, the second return element 65 is configured so that, when the second retention member 35 moves away from its reference position Z0 according to the first direction N, return the second retention member 35 to its reference position Z0 (see in particular figure 13A).

In this example, the first and second return elements 60 and 65 are similar. 55

More particularly, the second return element 65 is adapted to deform in a deformation direction.

The second return element 65 has a first and second ends 66 and 67 separated in this deformation direction 60.

According to this example, this deformation direction is designed to be parallel to the direction of travel along which the second retaining member 35 is adapted to move with respect to the semi-fixed sheet 2. 65

In particular, the deformation direction of the second return element 65 is designed to be parallel to the vertical direction.

In this example, the common part 30 has, in addition to the first recess 31 mentioned above, a second recess 39 inside which the second return element 65 is at least partly adapted to be accommodated.

More particularly, this second recess 39 has an open bottom. In this example, the second recess 39 constitutes an opening that crosses the common part 30 in all its thickness.

 10

According to this example, the first bearing surface 36 is embodied in a first portion of the inner wall of the first recess 31, which is in particular the furthest, in the direction of travel of the second retaining member 35, of the second recess 39.

According to this example, the second bearing surface 37 is embodied in a first portion of the inner wall of the second recess 39, which is in particular the furthest, in the direction of travel of the second retaining member 35, of the first recess 31 .

According to this example, when the second retention member 35 occupies its reference position Z0 (see in particular Figure 13B), the second end 62 of the first return element 60 rests against the first support surface 36 of the second control member. retention 35 (of the common part 30 in this example), while the first end 66 of the second return element 65 rests against the second bearing surface 37.

According to this example, as illustrated in particular in Figure 13C, to return the second retaining member 35 towards its reference position Z0 when this part 35 moves away from its reference position Z0 according to the second direction P, the second end 62 of the first return element 60 cooperates with the fourth support surface 56 of the guide piece 50, while the first end 66 of the second return element 65 remains supported against the second support surface 37.

According to this example, as illustrated in particular in Figure 13A, to return the second retaining member 35 30 to its reference position Z0 when this part 35 moves away from its reference position Z0 according to the first direction N, the first end 66 of the second return element 65 cooperates with the third support surface 55 of the guide piece 55, while the second end 62 of the first return element 60 remains supported against the first support surface 36.

 35

According to this example, whatever the position of the second retention member 35, the first end 61 of the first return element 60 is always held against a second portion of the inner wall of the first recess 31 that is opposite, in the direction of displacement of the second retention member 35, to its first portion.

 40

According to this example, whatever the position of the second retaining member 35, the second end 67 of the second return element 65 is always supported against a second portion of the inner wall of the second recess 39 which is opposite, in the direction of displacement of the second retention member 35, to its first portion.

 Four. Five

According to this example, the respective dimensions of the first and second recesses 31 and 39 of the common part 30 and of the recess 57 of the guide piece 50, in the direction of travel of the second retaining member 35, are provided such that , when the second retaining member 35 occupies its reference position Z0, the first and second bearing surfaces 36 and 37 are flush respectively with the fourth and third bearing surfaces 56 and 55. 50

In this example, the first return element 60 is adapted to work in compression so that, when the second retaining member 35 moves away from its reference position Z0 according to the second direction P, request the displacement of this piece 35 towards its position of reference Z0. This first return element 60, on the contrary, remains substantially at rest when the second retaining member 35 moves away from its reference position according to the first direction N.

In this example, the second return element 65 is adapted to work in compression so that, when the second retaining member 35 moves away from its reference position Z0 according to the first direction N, request the movement of this piece 35 towards its position of reference Z0. This second return element 65 is instead held substantially at rest when the second retaining member 35 moves away from its reference position according to the second direction P.

In this example, the first and second return elements 60 and 65 have substantially different rigidities. 65

According to this example, the second retention member 35 is pushed, when it moves away from its reference position Z0 according to the first direction N, with a resulting return force (exerted by the second return element 65) of a substantially different level ( for example substantially higher) at the level of the resultant return force exerted on the second retaining member 35 (by the first return element 60) when the latter returns from its reference position Z0 according to the second direction P. 5

On the other hand, although a first and second embodiment examples have been illustrated that implement a first and second support surfaces housed at least in part within one or several recesses of the second retention member, obviously exceptions can be made without leaving of the framework of the present description.

 10

For example, it could be envisaged, without departing from the framework of the present description, that at least one of the two surfaces between these first and second bearing surfaces materializes in a portion of the second control organ, at least when the latter is designed to be solidarity in displacement with the second retention body.

 fifteen

The forms or examples of embodiment described in the present description are given by way of illustration and not limitation, and one skilled in the art may, in view of this description, easily modify these forms or examples of embodiment, or consider others, staying within Scope of the invention, which is defined in the appended claims.

 twenty

In addition, the different characteristics of these forms or embodiments can be used alone or combined with each other. When combined, these characteristics may be as described above or different, as the invention is not limited to the specific combinations described in the present description. In particular, unless otherwise indicated, a characteristic described in relation to one embodiment or embodiment can be applied in a similar manner to another embodiment or exemplary embodiment. 25

Claims (17)

1. Retention device for a semi-fixed sheet (2) that cooperates with a movable sheet (1) to close an opening, said device comprising:  5 a first retention member (10) adapted to be integral with a first object between the semi-fixed sheet (2) and the contour of the opening near a meeting point of the two sheets (1, 2); a second retention member (35) adapted to be movable mounted on the other of said objects such that it can occupy a reference position (Z0) in which the first and second retention members (10, 35) are adapted to cooperate together to retain the semi-fixed blade (2) in the closed position, and in such a way that 10 can move away from this reference position (Z0) according to a first direction of travel (N) to allow a release of said cooperation to authorize an opening or closing movement of the semi-fixed leaf (2); a first control organ (70) designed to be integral with the movable blade (1); a second control element (40) adapted to be movable mounted on the other of said objects to, during the closing of the mobile leaf (1), cooperate by cam effect with the first control organ (70) to request a displacement of the second retention body (35); characterized by that the second retention member (35) is adapted to move away from its reference position (Z0) according to a second direction of travel (P) opposite the first (N) to allow a strengthening of the cooperation of the first and second retention organs (10, 35) to hold the semi-fixed blade (2) more firmly in the closed position; The device comprises return means (60, 65) configured for, when the second retention member (35) moves away from its reference position (Z0) according to any direction of movement between the first and second directions (N, P), return the second retention member (35) to its reference position (Z0); 25 the cam-effect cooperation of the first and second control bodies (70, 40) requests a departure from the second retention member (35) with respect to its reference position (Z0) according to the second direction (P); and the first and second retention elements (10, 35) are configured to, when the opening or closing movement of the semi-fixed leaf (2) is requested, cooperate by cam effect to request a distance from the second retention element (35) with respect to its reference position (Z0) according to the first direction (N). 30 Device according to claim 1, characterized in that one of said first and second retention elements (10, 35) consists of a male part adapted to fit inside a female part of which the other retention member consists, when the second retention body (35) occupies its reference position (Z0), because the male part fits more into the female part when the second retention member (35) moves away from its reference position (Z0) according to the second direction (P), and because the male part is disengaged from the female part when the second retention member (35) moves away from its reference position (Z0) according to the first direction (N). 3. Device according to claim 1 or 2, characterized in that the second retention member (35) and the second control member (40) are integral in displacement. Device according to claim 3, characterized in that the second retention member (35) and the second control member (40) are formed in a single piece called a common part (30).  Four. Five 5. Device according to claim 4, characterized in that the common part consists of a rod (30) that is adapted to be mounted slidably on the other of said objects, and comprising a first end (35) defining the second retention member . Device according to claim 5, characterized in that the rod (30) comprises a second end 50 opposite to the first (35) and in the extension of which the second control member (40) is formed. Device according to any one of claims 1 to 6, characterized in that it comprises a first and a second supporting surface (36, 37) in solidarity with the second retaining member (35), and that the return means (60, 65) are configured to, when the second retention member (35) moves away with respect to its reference position (Z0) respectively according to the first direction (N) and according to the second direction (P), exercise its return respectively on the first support surface (36) and on the second support surface (37). Device according to any one of claims 1 to 7, characterized in that the second retention member (35) consists of at least one hole (31, 39) inside which the return means (60, 65) They are housed at least in part. Device according to any one of claims 1 to 8, characterized in that the return means comprise a first return element (60) configured for, when the second retention member (35) moves away from its reference position ( Z0) according to the second direction (P), return the second retention element (35) towards its reference position (Z0). Device according to claim 9, characterized in that the first return element (60) is further configured for, when the second retention member (35) moves away from its reference position (Z0) according to the first direction ( N), return the second retention member (35) to its reference position (Z0). 5 Device according to claim 9 or 10, characterized in that the return means comprise a second return element (65) that is separated from the first return element (60) and that is configured for, when the second retention member ( 35) move away from its reference position (Z0) according to the first direction (N), return the second retention member (35) to its reference position (Z0). 10 12. Device according to any one of claims 1 to 11, characterized in that the first retaining member (10) is adapted to be fixedly mounted with respect to the first of said objects. 13. Device according to any one of claims 1 to 12, characterized in that the first control member (70) is designed to be fixed with respect to the movable sheet (1). 14. Device according to any one of claims 1 to 13, characterized in that it comprises a guide piece (50) adapted to be fixed on the other of said objects and on which the second retention member (35) is movably mounted. twenty 15. Device according to claim 14, characterized in that it consists of a latch (80) adapted for movable mounting on the movable sheet (1); and an associated notch (90) that is formed in one piece with the guide piece (50), and that is adapted to cooperate with the latch (80) to hold the movable sheet (1) in the closed position. 25 16. Device according to claim 15, characterized in that it comprises other return means (100) adapted to request a displacement of the latch (80) in the direction of its engagement with the notch (90), and that the latch (80 ) and the notch (90) are adapted to cooperate by cam effect to, during a closing movement of the movable leaf (1), cause a displacement of the latch (80) in the opposite direction to the direction of its coupling. 17. Device according to any one of claims 1 to 16, characterized in that the first retaining member (10) is adapted to be integral with the contour of the opening near a meeting point of the two sheets (1, 2) , and because the second retention member (35) and the second control body (40) are adapted to be mounted movable on the semi-fixed sheet (2).