JPH01318678A - Locking fitting for sliding type window - Google Patents

Abstract

PURPOSE: To simplify the locking metal fitting by comprising a support base and a regulating handle, providing an elastic means capable of pushing back a handle according to the angle slippage, and passing the elastic means in an unstable equilibrating position in the rotating operation of the handle. CONSTITUTION: This metal fitting comprises a support base 2 of an angle member having one wing edge 6 protruded and fixed onto the inner surface of an opening window and the other wing edge 7 protruded to the window, and a groove part 9 and a semi-cylindrical beam 10 are mounted on one side of a vertical edge on the inner surface 8 of the protruding wing edge 6. This device further comprises a locking device 4 cooperating with a clamp 5 fixed to the window frame, and a regulating handle 3 having a radial wing edge 11 and a circumferential wing edge 13. The handle 3 can be pushed back to respective fixed positions according to the angle slippage, and when the handle 3 is rotated by the original elastic means 19 by an elastic member 22, the elastic member 22 is made to pass an unstable equilibrating position. According to this, the materials can be standardized to reduce the stock.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention provides: - A support constructed of a chevron-shaped member, with a wing edge extending over the inner surface of a window and the other wing edge protruding toward the window. The present invention relates to a locking device for a sliding window door, which comprises: a base; and an adjustment knob that is pivotally mounted on the support base and has a locking device that cooperates with a stopper or the like provided on the window frame.

The invention has application in the specific industry that occupies the building hardware sector.

[Conventional technology]

Locking hardware for recapturing the abovementioned structural elements is already well known, for example, this locking hardware comprises a support in the form of an overhang on the inner surface of the front frame of a sliding casement window. This support holds the adjustment handle, and when unlatching the handle,
To fix a locking device that works with a clasp attached to the frame of a door, window, etc.

More specifically, the support base is made of obtuse angle chevrons,
One of the wing edges is attached to the inner surface of the front stile of the casement window using fixing tools such as screws and rivets, and the other wing edge is installed so as to protrude from the surface of the casement window. A vertical groove is provided in the inner corner of the chevron for receiving a semi-cylindrical bead integral with the adjusting knob and for providing means for rotating the handle. In more detail, the structure of this adjustment handle consists of a radial blade edge with the semi-cylindrical bead on its vertical edge. On its opposite vertical edge, a curved or circumferentially shaped wing edge is retained from its mounting position and state of movement relative to the pivot axis substantially formed by said semi-cylindrical bead. .

The locking device that cooperates with the catch mounted on the window frame has a thin plate shape fixed to the radial wing of the adjustment handle, and has a claw-shaped end connected to a member of the same structure as the hook of the full stop. Hold.

This known locking device is also equipped with resilient return means for the adjustment handle in the locked position. As a result, the above-mentioned metal fittings are given automatic characteristics, and when closing a casement window, doors, windows, etc. are locked in a systematic manner.

The resilient return means consists of a prestressed helical spring inserted between the ridge of the support angle and the radial edge of the adjustment handle. Therefore, when operating this handle, the user applies pressure to this helical spring to release the locking device of the corresponding catch.

Loosening the adjustment handle at the end of the sliding operation of the casement releases this resilient return means and places the locking fitting in the locked position.

However, with this arrangement, if a casement window is accidentally operated, for example by a child touching it, the doors, windows, etc. will be locked, and users who have just left the open area will be left standing outside. Become.

To alleviate this inconvenience and prevent accidents, a locking device that can hold the adjustment handle in the released position is attached to the locking fitting. This locking device consists, on the one hand, of a groove of oval cross-section, in which the semi-cylindrical bead of the adjustment handle is fitted, allowing the handle to undergo a vertical displacement relative to the pivot axis. On the other hand, a cavity is provided on the vertical edge of the ridge of the chevron forming the support base, into which a beggar located on the bottom surface of the circumferential wing constituting the gripping means of the adjustment handle can be received.

This locking device is reinforced with elastic return means of the adjustment handle in the locked position, which simultaneously exert a radial action on the adjustment handle and ensure a lateral movement of the handle relative to its direction of rotation. The effect of the radial action of this elastic return means is to fit the beggar of the circumferential wing into the corresponding cavity and to finally return the adjustment handle to the released position.

[Problem to be solved by the invention]

In this type of locking device, the user must operate the adjustment handle again after unlocking the door or the like to return the handle to the locked position by the action of the elastic return means.

Although a certain improvement in safety is achieved, this type of locking device still presents some inconveniences due to its inherently special construction and its unreliable characteristics.

In fact, the radially acting elastic return means have a non-standard construction due to the necessity of exerting a force on the adjustment handle in order to return it to the locked position on the one hand and to impart a lateral movement relative to the pivot axis on the other hand.

In addition, in this locking device, if the elastic return means deteriorates,
Reliability decreases and overall efficiency decreases. fact,
It has been found that it is only the radial force that causes the adjustment handle to lock in the released position. However, with this elastic return means, it is necessary to simultaneously apply pressure to the adjustment handle, which tends to break the connection between the beggar and the cavity.
This generally results in operation being more cumbersome than in the prior art.

The key is to find an optimal compromise between the axial and radial stiffness coefficients of this elastic return means, increasing the functionality of the locking device and facilitating the operation of the adjusting handle.

As is well known, theoretically it is possible to precisely determine this stiffness coefficient, but the manufacturing design aspect of the device is too complicated. In fact, if the material deteriorates, the idea of showing the same result in either direction of the elastic material does not hold true, and the locking device often becomes useless.

This unfavorable effect of the elastic return means also applies to the safety of the locking fitting. More precisely, if the operating handle indicating the release position is in an unstable equilibrium position, an inadvertent operation, for example by a child, which causes a collision between the casement window and the frame, will release the locking device and the final Occasionally, casement windows may be locked. This is a problem that must be resolved.

It should be noted that if the locking device of the adjustment handle in the unlocked position is a sliding casement, it will be useful only to out-of-home users. This is especially true in the case of upper-floor windows with no access to the terrace.
It doesn't work. As a result, in the case of casement windows of this type, it is preferable to have automatic locking hardware and to eliminate the locking device for the adjustment handle in the unlocked position.

However, in the case of the conventional locking fitting for a sliding door, in order to remove this locking device, the above-mentioned fastening fitting needs to be significantly modified.

The present invention overcomes the above-mentioned drawbacks by providing a locking device which is particularly reliable and has a locking device for the adjustment handle in the unlocked position, which necessarily requires the user to operate the adjustment handle into the locked position. The purpose is to rescue.

A further object of the invention is the standardization of materials relating to the conditions of use of fastening fittings for sliding casement windows. That is, a mechanism for automatically returning the adjusting handle to the locked position in a systematic manner; - or a semi-automatic mechanism for holding the adjusting handle in the unlocked position.

However, the standardization of materials for the purpose of lowering the overall original price of the locking metal fittings must not result in higher costs due to the use of complicated members, which would reduce the above-mentioned effects as a whole.

[Means to solve the problem]

For this reason, the present invention provides a locking fitting for a sliding casement window having the following configuration, in which one of the blade edges is fixed and protruded over the inner surface of the casement window, and the other blade edge is opened and fixed. A support base formed of an angle-shaped member and projecting from the window; and an adjustment handle pivotally attached to the support base and equipped with a locking device that cooperates with a catch or the like on the window frame. Become.

According to another feature of the invention, the locking hardware is provided with an inherent elastic device which adjusts the adjustment handle to its angular displacement and pushes it back into the unlocked or locked position, as the case may be. is provided with means for shifting the point of force for the adjustment handle of the elastic (return) means in order to ensure that the handle is constantly returned to the locked position.

The essential advantage obtained with the invention is that the function of maintaining the adjustment handle in the unlocked position can be fulfilled by means of the existing specific elastic means, and in particular the special joint of said adjustment handle is mounted on the support. There's no need. It should be noted that this elastic means allows the adjustment handle to return to the locked position at the same time, and that there is no retrograde relationship between this operation and the previous state operation.

Another advantage of this locking device according to the invention is that it exhibits multifunctionality and can in fact be adapted to all types of doors, windows etc. using suitable means, whether automatically or semi-automatically. Switchable. Furthermore, this automation method allows for the simplification of the materials that make up the locking hardware, not only in terms of quantity but also in terms of design level.

Other objects and advantages of the invention include non-limiting embodiments:
The following explanation based on the attached drawings will make it clear.

〔Example〕

The fastening fitting 1 which is the subject of the invention, shown in FIGS. 1.2 and 4, relates more specifically to fittings for sliding doors and windows. That is, this fastening fitting 1 consists of a support base 2 mounted in an overhanging manner on the inner surface of the front frame of a sliding casement window, and an adjustment handle 3 mounted on the frame in a pivot manner.
It consists of

This handle has a clasp 5 fixed on the frame of the door, window, etc.
A locking device 4 is attached that cooperates with the locking device 4.

More specifically, the support base 2 is composed of a wing edge 6 supported and fixed on the inner surface of the casement window, and a ridge 7 attached in a direction perpendicular to the casement window surface.

A groove 9 is installed on the inner surface 8 of the flared blade edge 6, into which a semi-cylindrical bead 10 integral with the adjustment handle 3 is fitted, forming the rotation axis of the handle. For this purpose, the adjustment handle 3 has a radial edge 11 configuration, and the semi-cylindrical bead 10 is fitted into one of its vertical edges 12.

Due to its position and displacement state with respect to the rotational axis of the adjustment handle 3, the blade 13, which is called a circumferential blade edge, is similar to the radial blade edge 11 described above.
It is held on the opposite vertical edge 14 of the adjustment handle 3 and forms the gripping part of the adjustment handle 3.

The locking device 4 integrated with the handle consists of a thin plate 15 forming an attachment to the radial blade edge 11, the free end 1 of this thin plate
6 is provided with a claw 17 that cooperates with a hook 18-shaped member, and has a structure that cooperates with a stopper 5 attached to a frame stile of a door, window, etc.

Preferably, the locking fitting 1 according to the invention further includes an adjustment handle 3, as shown in FIG.
0, and on the other hand the adjustment handle 3 as shown in FIG.
An elastic means 19 is provided which can be alternately pushed back at the unlocked position 21 depending on the configuration.

More precisely, this alternating operation is influenced by the angular displacement applied to the adjustment handle 3 during actuation of the locking fitting 1. That is, this elastic means 19 is a kind of elastic member 2.
2, one end 23 of which is connected to the projecting edge 7 of the support base 2.
and the other end 24 thereof is connected to the radial wing edge 11 of the adjustment handle 3.

More precisely, the arrangement of the elastic member 22 is
and the connection points 25 and 26 respectively on the adjustment handle 3 are connected to the semi-cylindrical bead 10 during the pivoting operation of said adjustment handle 3.
and is aligned with the axis of rotation of the handle substantially defined by.

Therefore, when rotating the handle, this elastic member 22 passes through an unstable equilibrium position in which all different forces are canceled out.

On either side of this point of equilibrium, the elastic member 22 causes the handle to rotate in different directions.

The connection point 25 of the elastic member 22 on the support base 2 is connected to a locking metal fitting l.
remains unchanged during operation, so that only the connection point 26 undergoes a color variation equal to that indicated by the adjustment handle 3. As a result, during operation of the handle, this connection point 26 undergoes a color change, while it is necessary to cut the line segment 27 connecting the connection point 25 and the pivot axis of the adjustment handle 3, and this line segment 27 is the force balance. Configure lines.

Therefore, if said connection point 26 is located between connection point 25 and the pivot axis of the adjustment handle 3 and moves on said line segment 27, the elastic member 22 occupies an unstable equilibrium position. In fact, in this position configuration, the fulcrum distance 28 separating the connection points 25, 26 becomes such that it exhibits a minimum value, corresponding to the maximum compressive force of the elastic member 22.

As shown in FIG.
If it advances in either direction of the line segment 27, it will tend to increase.

This elastic return transition in the unlocked position 21 and the locked position 20 of the adjusting handle 3 is completed at the beginning or end of the rotation of the adjusting handle 3 or when the handle is in the central angular position. This depends on the goals sought by the producer and, above all, on the demands of the market. Therefore, if this transition is to be performed at the beginning of the adjustment handle 3 operation, the locking fitting 1 should be moved to the safe side in a systematic manner so that the adjustment handle is operated in the open position at the time the casement window is unlocked. It is desirable to work on On the other hand, if the adjustment handle 3 is to be held in the unlocked position while the handle is rotated to the maximum, priority is given to an automated system for the locking fitting.

In each of the drawings, the elastic member is shown in the form of a spring plate, but this spring may be replaced with any other type of elastic material, such as a spiral spring, as long as it provides the same function. .

Preferably, the connection between the flange 7 of the support base 2 and the radial wing edge 11 of the adjustment handle 3 and the elastic member 22 is formed by a coupling device 29 . A feature of this case is that when operating the locking metal fitting 1, the local stress exerted on the elastic member 22 is reduced.

In fact, in the case of a one-piece connection, this elastic member 22 is particularly susceptible to strong tensile forces at the ends 23,24.

According to another advantage of the invention, the locking device 1 is provided with displacement means 30 by which the operating point of the elastic means 19 applied to the adjustment handle 3 can be shifted. The purpose of installing this displacement means 30 is to provide the user with a standard locking fitting, whose functions and characteristics can be adjusted without particular difficulty and without the need to change parts.

In fact, by means of this means 30, the function of the locking fitting can be automated and the adjusting handle 3 can be systematically returned to the locked position. For this purpose, on the adjustment handle 3, the elastic member 2
It is sufficient to simply move the connecting point 26 of the two. More precisely, this means 30 is constituted by a connection point 31 of the elastic member 22 on the radial wing edge 11 of the adjustment handle 3;
Its position is determined so that it does not intersect the line segment 27 connecting the connection point 25 and the level of the support base 2 and the axis of rotation formed by the semi-cylindrical bead 10, no matter when the handle is rotated.

In the embodiment shown in FIGS. 1.2 and 4, this connection point 31
is the internal angle 32 formed by the radial blade edge 11 and the circumferential blade edge 13
located inside. However, any other arrangement may be selected for the connection points 31 as long as all the above conditions are satisfied.

All according to the above, the end 24 of the elastic member 22 is connected to the adjustment handle 3 through the connection point 31 by the biasing force of the coupling means 33.
Connect to.

In addition to the advantages enumerated herein, it has been found that this locking fitting 1 is based on a particularly simplified concept, as a result of which:
There is also a clear impact on the cost.

However, this simplification does not compromise the reliability of the device, nor does it require any special ideas depending on the application. Quite to the contrary, this fastener standardizes the materials for sliding casement windows, thereby significantly reducing inventory levels for both manufacturers and users.

[Brief explanation of the drawing]

1 shows a schematic cross-section of a locking fitting according to the invention, showing the adjustment handle in the locked position; FIG. 2 shows the same section as in FIG. , in the unlocked position; FIG. 3 shows the operation of the elastic means when the adjustment handle is operated; FIG. 4 shows the locking fitting in the same position as in FIG. 1;
The elastic means acting on the adjustment handle is out of its operating position,
FIG. 6 is a diagram showing how the handle is systematically pushed back to the locked position. 2...Support stand, 3...Adjustment handle, 4...
...Locking device, 19--Elastic means, 30--Displacement means.

Claims (1)

[Claims] 1. A support base (2) made of an angle-shaped member, with one of the blade edges (6) projecting and fixed on the inner surface of a casement window, and the other blade edge (7) protruding from the window. , and on one of the vertical edges (12) a semi-cylindrical bead (10) cooperating with a groove (9) provided on the inner surface (8) of the flared wing edge (6) of the support platform (2). mounting, and an adjustment handle (with a locking device (4) cooperating with a catch (5) etc. fixed on the window frame and with a circumferential wing edge (13) integral with the radial wing edge (11)); 3), having the above adjustment handle (
It has its own elastic means (19) that can push the adjustment handle (3) back into the unlocked or locked position, as the case may be, depending on the angular deviation indicated by the elastic means (1).
9) consists of an elastic member (22), and this elastic member (22
) has coupling means (2) at its ends (23), (24).
9) to the flange (7) of the support base (2) and the radial wing edge (11) of the adjustment handle (3), respectively, and the elastic member (22) is connected to the radial wing edge (11) of the adjustment handle (3) when the adjustment handle (3) is rotated. , a locking fitting for a sliding casement window, characterized by passing through an unstable equilibrium position. 2. The attachment device for the elastic member (22) is such that each connection point (25, 26) on the support base (2) and the adjustment handle (3) is connected to a semi-cylindrical bead (
10), the connection point (25) of the elastic member (22) on the support base (2) is fixedly mounted and radiates The connection point (26) on the wing edge (11) moves on a curved trajectory concentrically with the rotation axis of the adjustment handle (3);
a line segment (27) connecting the connection point (25) and the axis of rotation of said adjustment handle (3) formed by a semi-cylindrical bead (10);
The fastening fitting according to claim 1, characterized in that it traverses the . 3. Displacement means (30) for moving the point of action of the elastic means (19) on the adjustment handle (3) are provided to ensure that the adjustment handle automatically returns to the locked position, and the displacement means (30)
) is constituted by the connection point (31) of the elastic member (22) on the adjustment handle (3), and its position is formed by the connection point (31) of the elastic member (22) on the support base (2) when rotating the adjustment handle.
25) and the rotation axis of the adjustment handle (3) (27)
) so that they do not intersect, and connect this connecting point (31) to the radial blade edge (11) and the circumferential blade edge (1) of the adjustment handle (3).
3. Locking fitting according to claim 1 and 2, characterized in that it is located within a circular angle (32) formed by and.