JP2013213371A - Latch device for sash and window sash including the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a latch device for a sash, having effects of eliminating restrictions on design of an upper frame due to arrangement of the latch device, reducing the upper frame, and facilitating a latch release operation or the like.SOLUTION: The latch device for a sash comprises: a case 2 which is fitted and installed at a stile upper part of the sash, and has a window frame upper rail fitting groove formed at the upper part; a latch block 3 installed slidably in the vertical direction inside the case 2, and energized and held in an upper direction by a spring 5; and an operation body 4 arranged on the lower side of the latch block 3 inside the case 2, provided slidably in a lateral direction between a latch release position for allowing lowering of the latch block 3 and a latch operation position for sneaking under the lower side of the latch block 3 and blocking the lowering of the latch block 3, and energized and held in the sneaking direction by a spring 6.

Description

  TECHNICAL FIELD The present invention relates to a slip-off device for a shoji that prevents the shoji from coming off the window frame and a sash provided with the same.

Conventionally, a sash that forms a wall of a building or the like has adopted a method in which a shoji is fitted to the window frame by a so-called Kendon method, but the shoji is unexpectedly detached from the window frame during an earthquake or opening and closing. In order to prevent this, an anti-slip device for shoji is provided.
Many of the conventional anti-slip devices have been manually operated to move the anti-skid piece up and down with a screw, but in recent years, many devices have been proposed that automatically apply the anti-skid when the shoji is installed. Yes.

  For example, in Patent Document 1 below, an anti-slip piece is attached to one side of a base body that is fitted and attached to the upper groove of the upper arm of the shoji, and the anti-slip piece is attached to the anti-slip position by a spring ( Energize it so that it can move to a position directly below the upper rail), and on one side of the locking piece (upper groove center side) so that it can rotate up and down around the horizontal axis and take a horizontal posture A tension piece is attached by urging with a spring.Before the shoji is installed, the tension piece is placed in a horizontal position and its tip abuts against the side wall of the upper groove to play the role of a stick. When inserting, the tension piece comes into contact with the upper rail of the frame body, and the tension piece is rotated downward against the spring force, whereby the anti-separation piece is horizontally rotated by the spring, and the anti-desorption piece is in the set position, In other words, a locking device that comes directly under the upper rail It has been proposed.

  Moreover, in the following patent document 2, in the automatic slip-off device for the shoji attached in the upper groove of the upper arm of the shoji, the bottom base provided at the bottom of the upper groove and the side standing integrally with the side of the bottom base A base part, a locking piece provided to be rotatable in a horizontal direction around a vertical axis provided from a side part of the bottom base part, and a side wall side opposite to the vertical axis side of the upper groove. A spring that is urged so as to rotate, and a stopper that is extended from the bottom base and is floated from the bottom of the upper groove, and is made of an elastic piece that locks the locking piece, When the stopper is pushed down on the upper rail of the shoji frame, the detent piece is removed from the stopper and rotated by the spring, and the detent piece is interposed between the upper rail of the shoji and the bottom of the upper groove. Automatic shoji screen Stop devices have been proposed Re.

  Furthermore, in Patent Document 3 below, an operating plate is slidably engaged in the longitudinal direction of the groove in the concave groove of the upper edge of the shoji, and the operating plate is inclined obliquely from one side wall of the upper concave groove. A linear groove cam extending in the longitudinal direction of the groove and a long hole extending in the longitudinal direction of the concave groove are provided. A shaft supported by the upper collar through a long hole is supported so as to be swingable along the surface of the operating plate, and a driven pin protruding from the intermediate portion of the locking plate is linearly formed on the operating plate. A device for preventing the slipper from being engaged with a groove cam has been proposed.

Japanese Utility Model Publication No. 63-86271 Japanese Examined Patent Publication No. 6-78699 Japanese Utility Model Publication No. 6-71833

  The shoji slip-off preventing devices according to Patent Documents 1 to 3 are all housed in the upper arm of the shoji. In this case, however, the cross section of the upper arm of the shoji must be dimensioned to accommodate the detent device, and this causes a problem that becomes an obstacle when it is desired to reduce the size of the upper arm. Also, if you want to remove the shoji from the window frame due to breakage or repair of the glass, you will be able to release the stopper, but if the stopper is provided inside the upper arm, there will be a release hole on the side of the upper arm. It is formed, and a screwdriver is inserted into it to perform the release operation, or a screwdriver is inserted from the opening provided in the prospective surface of the shoji to perform the release operation, but it is necessary to operate the part that is not visible from the outside There is a problem that it is very difficult to perform the release operation because there is a problem, and there is also a problem that repair and replacement work is very troublesome because it is placed in the upper arm when a failure prevention device occurs there were.

  Furthermore, since the anti-skid device is disposed at the upper end of the downpile to suppress the rattle due to wind pressure, earthquake, etc., the installation work of the anti-skid device and the installation of the anti-skid device as a work against the shoji It was necessary to perform two types of work, and it was desired to save these work.

  Therefore, the main problem of the present invention is that it is possible to reduce the size of the upper eyelid by eliminating the design restrictions of the upper eyelid due to the arrangement of the locking device for shoji, and to facilitate the release operation of the anti-lease device. It is providing the sash provided with this.

In order to solve the above-mentioned problem, the present invention according to claim 1 is a case in which a shoji screen is fitted and installed at the upper part of the shovel, and an upper rail fitting groove is formed in the upper part. A detachable block that is slidable along the direction and is biased upward by a resilient means, and is disposed below the detachable block in the case, and the detachable block And a slidable laterally slidable position between a detachment release position that allows lowering of the detachment block and a detachment operation position that enters the lower side of the detachment prevention block and prevents the detachment prevention block from descending. And an operating body biased and held in the infiltration direction by
The actuating body is integrally provided with a trigger piece that is held in a stop state at the release prevention release position by engaging with a part of the case, and the trigger piece is pushed down as the release prevention block is lowered. Thus, the disengagement device for shoji is provided, wherein the engagement is released and the operating body moves to the disengagement operation position as the disengagement block rises.

  In the first aspect of the present invention, the anti-slip device is fitted and installed on the upper side of the shoji, so that there is no design restriction on the upper eaves, and the cross-sectional dimensions of the upper eaves are reduced (especially the finding width) )become able to. In addition, since the anti-slip device is fitted and installed at the upper part of the vertical shaft and is disposed at a visible position, the release-preventing operation can be easily performed.

As a second aspect of the present invention according to claim 2, the case is provided with a rod insertion hole for pushing back the operating body from the release prevention operation position to the release prevention release position. A stop device is provided.
According to the second aspect of the present invention, a rod member insertion hole for releasing the stopper is provided in the case, and a rod member such as a screwdriver is inserted through the rod member insertion hole, and the operating body If the movement is moved from the release prevention operating position to the release prevention release position, the release prevention is released and the shoji can be removed from the window frame.

  The present invention according to claim 3, wherein the upper rail fitting groove has a width that allows for an allowance in the thickness of the upper rail, and has a steadying function. A locking device is provided.

  In the invention according to claim 3, the width of the upper rail fitting groove of the case is set to allow for a margin for the thickness of the upper rail so as to have a steadying function. The device can also be used as a steady rest function, and the shoji can be made only by attaching the anti-skid device for the shoji, so that labor can be saved.

  According to a fourth aspect of the present invention, there is provided a convex portion that fits into the rod insertion hole when moved to the detachment prevention operation position with respect to the front surface of the operating body on the infiltration direction side. A sliding device for shojis according to any one of 1 to 3 is provided.

  The invention according to claim 4 is provided with a convex portion that fits into the rod insertion hole when the operating body moves to the anti-separation operating position with respect to the front surface on the infiltration direction side. It is. Therefore, when the operating body is in the anti-separation operating position, the rod insertion hole is blocked by the convex portion, so that a person who does not know that the hole is an anti-separation release hole is inadvertently screwed into the hole. Can be prevented from being released.

  According to a fifth aspect of the present invention, there is provided a sash comprising the shoji according to any one of the first to fourth aspects.

  As described above in detail, according to the present invention, it is possible to reduce the size of the upper eyelid by eliminating the restriction on the design of the upper eyelid due to the arrangement of the locking device for the shoji, and it is possible to facilitate the release operation of the anti-leaking device. It becomes possible to provide the slip-off device for shoji which has, and a sash provided with the same.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 shows a state in which a slip prevention device 1 according to the present invention is fitted and installed at the upper end of a vertical shaft, (A) is a plan view of the main part of the shoji, and (B) is a front view of the main part of the shoji. It is a principal part side view (expected surface) of the shoji which shows the state which fitted and installed the anti-skid apparatus 1 which concerns on this invention in the upper end part of a vertical shaft. The state which fitted and installed the stopper device 1 which concerns on this invention to the upper end part of a vertical shaft, (A) is a principal part perspective view from an outer side, (B) is a principal part perspective view from an inner side. It is. It is an exploded view (assembly drawing) of a stopper device. The case of the locking device 1 is shown, (A) is a perspective view from the outer surface side, and (B) is a perspective view from the inner surface side. A case is shown, (A) is an internal view, (B) is a left side view, and (C) is a plan view. 4A is a perspective view from one surface side, FIG. 5B is a perspective view from the other surface side, and FIG. 4A is a perspective view from one side, FIG. 5B is a perspective view from the other side, and FIG. It is a longitudinal cross-sectional view which shows the construction point of a shoji. It is an operation state explanatory view of the locking device.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  The sash targeted by the present invention is composed of a window frame and a shoji and a shoji installed so as to be slidable in the horizontal direction with respect to the window frame. On the other hand, the slipper disengagement device 1 according to the present invention is provided.

  As shown in FIG. 1, the sliding device 1 for the shoji is fitted and installed on the upper part of the shoji of the shoji, and the case 2 in which the upper rail fitting groove is formed on the window frame is formed. The detachable block 3 that is slidable in the vertical direction inside and is urged and held upward by a resilient means (spring) 5, and the detachable block 3 in the case 2. Between the unlocking release position that is arranged on the lower side and allows the lowering block 3 to be lowered, and the unlocking operation position that enters the lower side of the locking block 3 and prevents the lowering block 3 from being lowered. The operating body 4 is provided so as to be slidable in the lateral direction and is urged and held in the infiltration direction by a resilient means (spring) 6. The operating body 4 is engaged with a part of the case 2. By joining A trigger piece 4C, which is held in a stop state at a locking release position, is integrally provided, and the engagement is released when the trigger piece 4C is pushed down as the locking block 3 is lowered, and the locking block The operating body 4 is moved to the anti-separation operating position as 3 rises.

  Hereinafter, further detailed description will be given with reference to the drawings.

  As shown in detail in FIGS. 5 and 6, the case 2 is a box-like case whose back side is open, and is fitted and installed on the upper part of the vertical rod 22 of the shoji S. ing. An upper rail insertion groove 2a into which the upper rail 20a of the upper frame 20 is inserted is formed on the upper surface portion. As shown in FIG. 2, the upper rail insertion groove 2a has a width that allows for a slight allowance for the thickness of the upper rail 20a, and has a steadying function. In the case 2, the upper side is relatively a first installation space 2 </ b> A for installing the retaining block 3, and the lower side is a second installation space 2 </ b> B for installing the operating body 4.

  A spring installation base 2b is provided at a substantially boundary portion between the first installation space 2A and the second installation space 2B in a horizontal direction at a position closer to one side, and a spring fitting protrusion is formed on the upper surface of the spring installation base 2b. Part 2c is formed.

  In the second installation space 2B, a spring fitting convex portion 2d that protrudes in the horizontal direction is formed on one side surface, and a trigger piece 4C of a working body 4 to be described later is formed above the second installation space 2B. A stopper hanging wall 2e is provided to engage with. Further, the side wall facing the side wall on which the spring fitting convex part 2d is formed is formed with a release prevention releasing hole 2f, and a guide for guiding the slide of the operating body 4 along the horizontal direction in the middle part. A groove 2j is formed.

  As will be described later, the working body 4 installed in the second installation space 2B is located at the position closest to the spring fitting convex portion 2d side as a release prevention release position that allows the release prevention block 3 to descend, and the release. The position closest to the stop release hole 2 f side is a release prevention operation position that prevents the release prevention block 3 from descending.

  Further, in the first installation space 2A, screw holes 2g for fixing the case 2 to the upper part of the vertical rod 22 are provided in the middle portion, and both side walls surrounding the first installation space 2A are respectively provided. The guide grooves 2h and 2h for guiding the vertical movement of the retaining block 3 are formed in a two-stage arrangement.

  On the other hand, a bulging portion 2C is provided on the outer surface side, and a pair of right and left rib fitting grooves 2i and 2i are provided at the boundary between the bulging portion 2C and the main body portion 2D. ing.

  On the other hand, as shown in FIG. 1, the vertical rod 22 has a hollow portion 22A on the door end side, and a notch 22a is provided at an upper end portion of the hollow portion 22A, and the main body portion 2D of the case 2 is provided. Is fitted on the hollow portion 22A so as to be fitted on the upper side of the vertical rod 22 and the screw 24 is inserted through the screw hole 2g and screwed into the vertical rod 22 so as not to come out. At this time, since the release preventing release hole 2f of the case 2 needs to face the indoor side, a notch 22b is formed in the smoke return portion of the vertical wall 22 overlapping therewith.

  Next, as shown in detail in FIG. 7, the slip-off prevention block 3 is a plate-like block body having a predetermined thickness, and the guide grooves 2h, 2h of the case 2 are provided on both side surfaces, respectively. Guide protrusions 3a and 3a are provided to engage with each other. A screw through hole 3b is provided in the intermediate portion so as to correspond to a screw hole 2g for fixing the case 2 to the vertical rod 22. An L-shaped notch 3c is provided on one side of the lower part, and a spring fitting convex part 3d is provided on the upper part of the notch 3c. The screw through hole 3b is formed at a position substantially coincident with the screw hole 2g provided in the case 2 when the locking block 3 is in the raised position (the state shown in FIGS. 10A and 10C). The screw through-hole 3b is inserted in a state where the slip-off preventing device 1 is fitted to the vertical shaft of the shoji, and is fixed by a screw 24 screwed into the screw hole 2g of the case 2. Yes. That is, by forming a screw through hole 3b in the anti-blocking block 3 and screwing through the screw through hole 3b, the case 2 can be made compact. The size can be fitted to 22A.

  As shown in detail in FIG. 8, the operating body 4 includes an operating body main body 4A in which the spring 6 is accommodated, a stopper 4B for preventing the detachment prevention block 3 from being lowered, and a part of the case 2 (stopper). It is composed of a trigger piece 4C which is held in a stopped state at the release prevention release position by engaging with the vertical wall 2e).

  The operating body main body 4A is a member having a horizontal spring installation space 4a, and has a spring fitting convex portion 4b on one end side. The front surface is provided with a convex portion 4c that fits into the release preventing release hole 2f of the case 2, and the side surface is provided with a guide convex portion 4d that engages with the guide groove 2j of the case 2. You may make it color on the front surface of the said convex part 4c.

  The stopper 4B is a post-like stopper that rises upward with a part (corner portion) of the upper surface of the operating body main body 4A as a base end, and the operating body 4 has moved to the lower side of the locking block 3. In the state, the sliding block 3 is prevented from coming off by preventing the falling prevention block 3 from descending.

  The trigger piece 4C is an arm-like member extending obliquely upward with the upper end portion of the operating body main body 4A as a base end, and is elastically deformable in the vertical direction. The tip has a drooping contact portion 4e, and the contact portion 4e abuts against the stopper hanging wall 2e of the case 2 so that the operating body 4 is held in the stop release position at a stop state. Is done.

  As shown in FIG. 4, the assembly of the case 2, the detachment prevention block 3, and the operating body 4 is performed by fitting one end of the spring 5 to the spring fitting convex portion 2 c of the case 2. While the other end is fitted into the spring fitting convex portion 3d of the locking block 3, the guide protruding portions 3a and 3a of the locking block 3 are fitted into the guide grooves 2h and 2h of the case 2, and the locking block 3 is installed in the first installation space 2 </ b> A of the case 2.

  One end of the spring 6 is fitted to the spring fitting convex portion 2d of the case 2, the other end is fitted to the spring fitting convex portion 4b of the operating body 4, and the guide convex portion 4d of the operating body 4 is fitted to the case. The operating body 4 is installed in the second installation space 2B of the case 2 while being fitted into the two guide grooves 2j. The initial state of the operating body 4 is such that the contact portion 4e of the trigger piece 4C is brought into contact with the stopper hanging wall 2e of the case 2 so that the operating body 4 is stopped at the disengagement release position. The anti-separation device 1 that has been assembled is fitted and installed at the upper end of the vertical rod 22 as described above.

  Next, the operating state of the anti-slip device 1 will be described in detail with reference to FIGS. 9 and 10.

  As shown in FIG. 9, as shown in FIG. 9, the shoji S is lifted up to near the upper limit while the upper rail 20 a of the upper frame 20 is fitted into the rail groove of the upper shim 23. This is performed by a so-called Kendon system in which the door wheel 25 provided on the vehicle is placed on the lower rail 21a of the lower frame 21.

  With this erection, the detachment prevention device 1 is configured such that the detachment prevention mechanism automatically operates to prevent detachment.

Specifically, as shown in FIG. 10A, in the state before installation, the operating body 4 is engaged with the contact portion 4e of the trigger piece 4C in contact with the stopper hanging wall 2e of the case 2. The operating body 4 is held in a state of being stopped at the detachment release position.
Next, as the shoji S is installed, when the upper rail 20a is inserted into the rail groove of the upper collar 23, the upper rail 20a lowers the locking block 3 as shown in FIG. Push down to the side. When the locking block 3 is pushed down, the engagement is released by pushing down the trigger piece 4C of the operating body 4. When the construction of the shoji S is completed, as shown in FIG. 10C, the operating body 4 moves to the lower side of the anti-slip block 3 as the anti-slip block 3 rises. This state is a state in which the operating body 4 is positioned at a locking operation position that prevents the locking block 4 from descending, and the stopper 4B of the operating body 4 prevents the locking block 3 from moving down. .

  When the operating body 4 is in the anti-separation operating position, the bar insertion hole 2f is blocked by the convex portion 4c, so that a person who does not know that the hole 2f is an anti-release release hole is not recommended. A screwdriver is inserted into the hole to prevent the release stopper from being released.

  Thereafter, when a situation arises in which the shoji S is desired to be removed from the window frame, it is necessary to release the stopper. In this case, a rod member such as a screwdriver is inserted from the release prevention release hole 2f, and the operating body 4 is pushed back to the release prevention release position (state shown in FIG. 10A). At the time of this pushing back, the trigger piece 4C is automatically engaged with the stopper hanging wall 2e, so that the operating body 4 is held in a state of being stopped at the release prevention releasing position.

  In the anti-slip device 1, the operating body 4 is configured such that the movement direction thereof is the indoor / outdoor direction in a state where the anti-skid device 1 is installed on the vertical rod 22. That is, the actuating body 4 is positioned below the anti-blocking block 3 by moving in the indoor direction from the state where it is positioned at the anti-locking release position, and prevents the locking block 3 from descending. It has become. Accordingly, when the operating body 4 is in the anti-separation operating position, it is close to the interior side wall surface of the vertical shaft 22, so as described above, a rod member such as a screwdriver is inserted to prevent the operating body 4 from coming off. The release stopper can be released simply by pushing back to the release position (the state shown in FIG. 10A), and the release prevention release operation can be easily performed. On the other hand, in the case where the anti-slip device is provided inside the upper heel and the release hole is formed on the indoor side surface of the upper heel like the conventional anti-skid device, it is provided on the prospective surface of the shoji. Since it is necessary to insert a screwdriver from the release hole to activate an invisible portion, there is a problem that the release operation is very difficult.

  Further, in the present locking device 11, a horizontal spring installation space 4a is formed inside the working body main body 4A, and the post-like stopper 4B is erected on a part of the upper surface of the working body main body 4A. Since the adjacent position of the stopper 4B is used as the downward movement space of the stopper block 3 and the trigger piece 4C is operated in the downward movement space, the overall size can be reduced.

[Other examples]
(1) As an example of unlocking release operation, a bracket-like lever is provided on the operating body 4 and exposed to the outside (prospect surface) of the case 2, and this lever is picked by hand. By operating it, it is possible to move the operating body 4 to the release prevention release position.

  DESCRIPTION OF SYMBOLS 1 ... Sliding device for shoji, 2 ... Case, 2a ... Upper rail insertion groove, 3 ... Detachment block, 4 ... Actuator, 4C ... Trigger piece, 5. 6 ... Bounce means (spring), 20 ... Upper frame 20a ... upper rail, 21 ... lower frame, 21a ... lower rail, 22 ... downboard, 23 ... upper heel, S ... shoji

Claims (5)

It is fitted and installed in the upper part of the shoji of the shoji, and a case in which an upper rail fitting groove is formed in the upper part of the shoji, and is installed in this case so as to be slidable in the vertical direction. A locking block that is biased upward, a locking release position that is disposed below the locking block in the case and allows the locking block to descend, and under the locking block And an actuating body that is slidable in a lateral direction between the position of the anti-detent block and the detent preventive operation position that prevents the detent block from descending, and is urged and held in the direction of the encroachment by the elastic means. Become
The actuating body is integrally provided with a trigger piece that is held in a stop state at the release prevention release position by engaging with a part of the case, and the trigger piece is pushed down as the release prevention block is lowered. Accordingly, the disengagement device for shoji, wherein the engagement is released and the operating body moves to the disengagement operation position as the disengagement block rises.   2. The stapling device for shoji according to claim 1, wherein the case is formed with a bar insertion hole for pushing back the operating body from the slip-off preventing operating position to the slip-off preventing releasing position.   The anti-skid device according to claim 1, wherein the upper rail fitting groove has a width that allows for an allowance in the thickness of the upper rail and has a steadying function.   The shoji according to any one of claims 1 to 3, wherein a convex portion that fits into the rod insertion hole when the actuator is moved to the detachment prevention operation position with respect to the front surface of the operating body on the infiltration direction side. Anti-slip device.   A sash comprising the shoji door stopper according to any one of claims 1 to 4.

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