JPH035668Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] This invention relates to a device for preventing the shoji from falling off in sliding sash windows, and in particular, the outer lower rail side of the lower frame of the window frame has a lower step than the inner lower rail side. The outer shoji is located at the lower part of the lower part of the shoji, and has a step protrusion at the upper part of the step, and is detached from the inner lower part of the lower stile of the outer shoji, which is fitted on the outer lower rail so as to be openable and closable, in correspondence with the step protrusion. This invention relates to a device for preventing a shoji from falling off, which is installed on the retaining ridges of the outer shoji in an externally removable sliding sash window with extending retaining ridges.

[Background technology and issues to be solved in the background technology]

The structure of a conventional sliding sash window of this type that can be removed from the outside is shown in FIG. That is, in FIG. 1, the sash window frame 1 consists of an upper frame 2, a lower frame 3, and left and right vertical frames 4.
Outer and inner upper rails 5 and 6 are vertically installed from the bottom frame 3, and outer and lower rails 8 and 6 are provided at the bottom of the lower frame 3 via a step 7, respectively.
Inner upper rails 9 are respectively provided to protrude from the upper part, and a stepped protruding part 10 is provided to protrude from the upper part of the stepped part 7 toward the outer lower rail 8 side.

The outer and inner shoji 11, 12 also consist of upper frames 13, 14, lower frames 15, 16, left and right vertical frames 17, 18, and left and right glasses 19, 20 fitted into these frames. , door wheels 21 and 22 supported on the outer and inner lower rails 8 and 9 are pivotally supported on each lower stile 15 and 16, and each fitting portion 23 and 24 of each upper stile 13 and 14 is The outer and inner upper rails 5 and 6 are received, and the outer shoji 1
From the inner lower part of the lower stile 15 of 1, there is a support part 26 facing the side sealing surface 10a of the stepped protrusion 10.
A retaining protrusion 25 is extended. Note that 27 is a sealing member provided on each support section including the support section 26.

However, in the externally removable sliding sash window constructed as described above, the outer and inner sashes 11 and 12 are attached to and removed from the window frame 1 in the following manner. That is, for installation, from the outside of the window frame 1, first insert the upper stile fitting part 23 of the outer shoji 11 into the inner upper rail 5 and lift it upward.
Fit the lower stile door wheel 21 onto the outer lower rail 8,
Next, the inner shoji 12 is sequentially fitted from the inside, and for removal, the inner shoji 12 is first inserted from the inside of the window frame 1 by the reverse procedure.
Then, the user is operated to sequentially remove the outer shoji 11. In other words, in the case of this type of external removable type, the structure is such that the outer shoji 11 cannot be removed unless the inner shoji 12 is removed. However, after it has been installed, it may fall off due to some reason. For example, this is likely to occur when an external force is applied that lifts both the inner and outer shoji, or when the door roller is adjusted up and down excessively.

As shown in FIG. 2, a conventional falling-off prevention device of this type includes a falling-off preventing member 28 having a vertical elongated hole 29 at the top of the vertical stile 17 of the outer shoji 11.
are temporarily fixed with the fixing screws 30, and after the shoji is attached to the frame, the elongated hole 29 is used to push up the retaining member 28 upwards and fix it. It is possible to make it impossible to lift it up and eventually fall off, or as shown in Fig. 3, a similar effect can be obtained by attaching retaining members 31 at several places on the upper frame 2, or as shown in Fig. 4, it is possible to prevent it from falling off. Various configurations have been proposed in which a similar effect is obtained by combining the member 32 and a wedge member 33 that pushes the member upward.

However, in the case of these conventional configurations, in order to restrict the upward lifting of the outer shoji 11, the upper part of the upper stile 13, the vertical stile 17 or the upper frame 2, that is, the tip of the window frame 1, cannot reach. Because the shoji has to be installed on a difficult upper part, the work of installing and removing the shoji is extremely complicated and troublesome, which not only lacks workability but also poses difficulties in the installation and removal operation itself. It was hot.

A common drawback of the above-mentioned known examples is that when attaching or removing the shoji, the worker must stand on the bottom frame and work in an upward position; I was forced to perform on my side, with half of my body hanging out. In particular, when working at heights above the second floor, there is a risk that the worker himself or herself may fall, and there is often a risk that installation tools and parts may fall. is considered an important responsibility.

[Disclosure of invention]

This invention aims to improve these conventional problems by forming a step protrusion on the lower frame side and extending a retaining protrusion corresponding to this step protrusion on the lower stile side. In the case of sash windows, this device provides a device to prevent the shoji from falling off, which is attached to the retaining protrusions and prevents the shoji from falling off between it and the stepped protrusion. From the inner lower part of the lower stile of the outer shoji, the side of which is located lower than the inner and lower rail sides via a step, has a step protrusion at the upper part of the step, and is fitted on the outer and lower rails so as to be openable and closable. In an externally removable sliding sash window in which a retaining protrusion extends in correspondence with a stepped protrusion, a casing is attached to the lower surface of the retaining protrusion at a proper place, and a housing is pivotally supported within the housing, and each The control piece includes a control piece and an engaging piece that are rotatably biased in a direction to project the control piece and the locking protrusion to a fixed position on the lower surface side of the stepped projection, and the control piece includes a control piece and a locking protrusion. The engaging piece is provided with an engaging part that occupies a predetermined restraining position when the control piece is held biased and protruded to the predetermined position, and the engaging piece has a locking protrusion that is engaged with the engaging part of the control piece. An engaging piece is provided for restraining and waiting at a position other than the fixed position, and the engaging piece can also be rotatably locked in the same restraining position from the outside, and the external force caused by abutment against the step projection is provided. This is a device for preventing a shoji from falling off in a sliding sash window, characterized in that when the restraint is released by applying pressure to the control piece, the locking convex portion is biased and protruded to the predetermined position.

〔Example〕

Hereinafter, one embodiment of the device for preventing falling of a shoji in a sliding sash window according to this invention will be described in detail with reference to FIGS. 5, 6, 7, and 8.

5 and 6 show the main parts of a window structure to which this embodiment device is applied, and FIGS. 7 and 8 show the configuration of the same device, and these FIGS. In the apparatus of this embodiment, the same reference numerals as in the conventional apparatus shown in FIGS. 1 to 4 represent the same or corresponding parts.

In this embodiment, the fall prevention device 40 is the seventh
As shown in FIG. 8, the upper surface part is the mounting surface 42, and the lower surface part is caulked to the holding plate 43.
A housing 41 is provided with a space 44 formed therein, and the space 44 is opened 45 on one side, and a control piece 46 and an engagement piece 47 are installed in this space 44.
and are pivoted so that they can be operated in conjunction with each other in the horizontal direction.

That is, the control piece 46 is rotatable about a support shaft 48, and the elastic piece 46b formed in a portion reaches a position where the locking piece 46a abuts the protruding piece 44a in the space. In this state, the engaging part 46c is projected and held at a predetermined position on the engaging piece 47 side, and the control piece part 46d having the cam surface 49 inclined at the upper part is made to protrude outside from one end side of the opening 45.

The engaging piece 47 is also rotatable around a support shaft 50 integrated therein, and the position where the locking piece 47a shallowly abuts against the locking piece 46a of the control piece is restrained. The engagement convex portion 47b is urged counterclockwise by the elastic force of the spring 51 wound around a part thereof, and in this state, the engagement convex portion 47b for preventing falling off is held in the housing of the opening 45. A Phillips screwdriver or the like is attached to the shaft end surface of the support shaft 50 that protrudes from the upper surface of the housing so that the support shaft 50 can be rotated arbitrarily against at least the spring pressure from the outside. A plus groove 50a is formed for engagement and return to engagement and rotation.

In the case of the device configuration described above, the control piece 46 and the engagement piece 47 occupy the following relative positions. That is, for the control piece 46, the locking piece 46a is always pressed against the projecting piece 44a, and the clockwise rotation thereof is maintained in a state prevented, and for the engaging piece 47, , when the locking piece 47a of the control piece is pressed shallowly against the engaging portion 46c of the control piece in the same maintained state and restrained, the engaging convex portion 47b is inserted into the housing of the opening 45. When the shoji is in a standby state (in a non-engaged state, the shoji can be attached and detached, and there is no fall prevention function), and an external force is applied to the control piece portion 46d of the control piece, the restraint on the locking piece portion 47a is released. When this is done, the engaging convex portion 47b is in a state of protruding outward from the housing of the opening 45 (in an engaged state, the shoji can be attached and detached and has the function of preventing it from falling off).

As shown in FIGS. 5 and 6, in the embodiment device having the above configuration, for example, two positions are provided on the left and right sides of the lower part of the outer shoji 11, and from the inner lower part of the lower stile 15 to the step protrusion 10. Both ends are attached to the lower surface of the correspondingly extended retaining protrusion 25 using fixing screws 52 such as countersunk screws so that the attachment surface becomes flat. Also, in the attachment part of this retaining protrusion 25, there is a separate set of window holes 53, 5.
3 is drilled, and the support shaft 50 is inserted into one of the window holes.
The upper shaft end face of the upper shaft end surface of the Phillips groove 50a is exposed, and the rotation operation for returning the engagement using the above-mentioned Phillips screwdriver can be performed from the window hole 53. 55,55
are lightly locked in these pair of window holes 53, 53, and each set screw 52, 52 surface and window hole 53, 5
It is coated on three sides.

Therefore, in the case of this embodiment configuration, the outer shoji 11
When installing, the upper stile fitting part 23 of the outer shoji 11
is inserted into the outer upper rail 5 and lifted upward, and while pushing in the lower stile 15 side, push the door roller 2.
2 onto the inner and lower rails 9, the control piece portion 46d that constantly protrudes outside from the opening 45 of the fall prevention device 40 hits the sealing surface 10a of the stepped protrusion 10 of the lower frame 3, Since this is applied as an external force to the control piece portion 46d, the control piece 46 is rotated counterclockwise against the elastic force of the elastic piece portion 46b, and the locking piece portion 47a is rotated by the engaging portion 46c. The restraint is released, and by this release, the engagement piece 47 is rotated counterclockwise by the elastic force of the spring 51, and the engagement protrusion 47b is moved from the opening 45 to the outside, in this case from the stepped protrusion. At the same time, the control piece 46 is returned to its original position, and at the same time, the sealing member 27 held by the support portion 26 of the retaining protrusion 25 is pressed against the sealing surface 10a to perform a sealing action. get. This protruding engagement convex portion 47b restricts the subsequent operation of lifting the outer shoji 11, in other words, the operation of attaching and detaching it, and also serves to prevent it from falling off.

In addition, in order to remove the outer shoji 11, first remove the decorative board 54 from the retaining protrusion 25, and then remove it from the support shaft 5.
By exposing the positive groove 50a on the end surface of the upper shaft of 0, engaging a Phillips screwdriver or the like with this positive groove 50a, and rotating the engaging piece 47 clockwise against the elastic force of the spring 51, the normal The locking piece 47a of the locking piece 47 is once again lightly hooked onto the locking portion 46c of the control piece 46 which has returned to the original position, thereby restraining the locking piece 47a, and the locking protrusion 47b is pulled into the opening 45. Make it standby. Then, like this, the engaging convex portion 47
When b is retracted, the outer shoji 1
1 can be lifted upward and removed easily.

That is, when installing the outer shoji in this way, by automatically protruding the engaging convex portion from the step protrusion, it is possible to prevent the sliding door from coming off and falling off, and it is also possible to prevent the sliding door from falling off by an external operation. By retracting the engaging convex portion from the step protrusion,
It is possible to easily remove the falling-off prevention function and make it possible to separate.

[Effect of idea]

As detailed above, according to this invention, the outer rail side of the lower frame constituting the window frame is located lower than the inner rail side via the step, and has a step protrusion at the top of the step, and In an externally removable type sliding sash window in which a retaining protrusion extends from the inside lower part of the lower stile of the outer shoji that is fitted on the outer lower rail in a manner that corresponds to the stepped protrusion, the retaining protrusion is A control piece with a control piece for control operation and an engagement piece with a locking protrusion to prevent it from falling off are pivotally supported in a casing that is attached to the lower surface of the strip at a proper place, and these control pieces and engagement pieces are The control piece is always biased to rotate in a direction in which each control piece and the locking protrusion protrude to a fixed position on the lower surface of the step projection, and the control piece is biased and held in a fixed position. When in a non-engaged state with only the protruding part protruding, the engaging part of this control piece holds the engaging piece locking piece part, thereby restraining the locking convex part of this engaging piece in a position other than the normal position and making it standby; Furthermore, when an external force is applied to the control piece of the control piece to release the restraint of the locking part by the engaging part, both the control piece and the engagement protrusion are made to protrude into a fixed position. Therefore, in the non-engaged state, when the outer shoji is attached to the window frame, the control piece of the control piece hits the step protrusion and receives an external force, which causes the engagement protrusion of the engagement piece to A device that can protrude from and face the lower surface of this stepped protrusion and automatically shift to an engaged state, and can provide a fall-preventing effect to both the outer shoji and, by extension, the inner shoji. It is. In addition, the engagement piece can be manually rotated indoors by operating from the inside of the outer shoji. The piece can be rotated to return to the disengaged state again, and in this state,
It has the advantage that each shoji inside can be removed, so workers can work comfortably without being forced to face upward during installation and removal work, and
Since there is no need to expose half of one's body outside, the safety of the worker is sufficiently ensured. In addition, unlike conventional devices that are attached to the upper window frame, upper stile, etc., work can be done at the bottom of the lower stile, etc., so there is almost no risk of parts or installation tools falling, making it extremely safe. It has a very good effect as a device for preventing the removal of windows etc. for installation in places. Moreover, the device configuration itself is simple, and there are various practical effects such as reducing the manufacturing cost.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional view showing the detailed structure of a sliding sash window to which this invention is applied, Figs. 2 to 4 are explanatory diagrams showing an outline of a conventional falling-off prevention means, and Fig. 5. 6 is a vertical cross-sectional view showing the main part configuration of the same double sliding sash window to which an embodiment of the fall prevention device according to the invention is applied, FIG. 6 is a partially cross-sectional plan view of the portion shown in FIG. 5--FIG. 7 and FIG. 8 is a longitudinal cross-sectional view and a partially cross-sectional plan view of the same device. 1... Window frame, 2, 3... Upper frame, lower frame, 4... Vertical frame, 7... Step portion, 8, 9... Outer, inner and lower rail pieces, 10 and 10a, 10b... Step projection part and seal surface, lower surface, 11, 12...outside, inner shoji, 13, 14...outer, inner upper stile, 15, 16...
Outside, inner and lower stile, 17, 18...outside, inner stile, 25...
... Anti-falling protrusion, 40... Falling prevention device, 41...
...Housing, 43...Holding plate, 44...Internal space of case, 45...Opening, 46 and 46a, 46
b, 46c, 46d... control piece and locking piece,
elastic piece part, engagement part, control piece part, 47 and 47a,
47b...Engagement piece and locking piece, engagement protrusion, 4
8...Spindle, 50 and 50a...Spindle and Phillips groove, 51...Spring, 52...Set screw, 54
... Decorative board.

Claims (1)

[Scope of utility model registration request] The outer lower rail side of the lower frame constituting the window frame is located lower than the inner lower rail side via a step part, has a step protrusion at the top of this step, and is fitted on the outer lower rail so that it can be opened and closed. In an externally removable sliding sash window in which a retaining protrusion extends from the inside lower part of the lower stile of the external shoji, corresponding to the stepped protrusion,
a casing that is attached to the lower surface of the retaining protrusion at a proper location;
The control piece and the engagement piece are pivotally supported within the housing and are rotatably biased in a direction that causes the respective control piece portions and locking convex portions to protrude to fixed positions on the lower surface side of the step projection. , the control piece is provided with an engagement portion that occupies a predetermined restraining position when the control piece is held biased and protruded to the predetermined position; an engaging piece that is locked to the locking protrusion and restrains and waits at a position other than the fixed position; The sliding sash window is characterized in that when an external force is applied to the control piece due to abutment against the stepped protrusion and the restraint is released, the locking protrusion is urged to protrude to the predetermined position. A device to prevent shoji from falling off.