JPH0740970U - Resting device for window shoji - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] It is extremely easy to lock and unlock the timing of a window sliding on a window that rotates around the horizontal axis while moving up and down. Moreover, the structure is simplified, and a restraint device for a window shoji is provided which is easy to design, manufacture, and assemble. [Structure] A horizontal lock pin 17 is erected on a side surface of a window shoji, and a lock plate 18 having a lock hole 23 for fitting and locking with the lock pin is swingable by a horizontal pin 22 on a vertical frame 3 of the window. Pivotally attached, the lock plate 18 is locked by its gravity into the lock hole.
23 is tilted and swung to the standby position where it fits with the lock pin 17, and conversely the force of the lock pin 17 pushing the lock hole 23 in accordance with the closing movement of the window shovel causes the lock hole to move vertically in the closed position of the window shoji. The lock pin 17 is adapted to be locked in the lock hole 23 by being swung up to the position toward the position, and the lock pin 17 is fitted into the lock hole 23 as the window screen rises from the closed position to the completely closed position.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a window shoji restraining device used in a sliding window that rotates while moving up and down.

[0002]

[Prior art]

 Conventional sliding doors that rotate around the horizontal axis while the window sliding door moves up and down, and a hinge arm fixed to the upper ends of both sides of the window sliding door can be moved up and down as a restraining device for the window sliding door. One end of a supporting arm pivotally attached to the rod by a horizontal first axis and supporting the window shoji in an open state is pivotally attached to a hinge arm by a second horizontal axis, and the other end is a vertical frame of the window. It is known that it is pivotally attached by a lateral third axis. In this device, when the drive rod is moved up and down by the handle, the shoji is moved up and down by the drive rod via the first pivot and is rotated about the first pivot by the support arm. The window shovel moves almost upward or downward only near the closed position.

As this type of window shoji, as shown in Japanese Utility Model Publication No. 4-27979, a locking means also serving as a pull is provided between the lower part of the shoji and the vertical frame of the window, so that the window shoji can be used. It is known to automatically lock or unlock according to the opening / closing movement.

In this locking means, a lock pin is fixed to the lower part of the side surface of the shoji screen, and a lock plate having a lock hole for locking the lock pin is pivotally attached to the vertical frame of the window by a pin. This lock plate swings between a lock position and an unlock position by fitting an operation hole formed in the lock plate and an operation pin fixed to the vertical frame of the window. Lock the lock pin with the lock hole of the lock or unlock it.

[0005]

[Problems to be solved by the device]

 In the conventional window screen locking means in the conventional window screen retaining device, the lock plate is swung by the operation hole and the operation pin of the drive rod, and the lock plate locking hole is fitted to the lock pin. It is troublesome in designing, working or assembling because it is necessary to adjust the timing of unlocking the lock or releasing the lock by releasing the fitting.

According to the present invention, it is extremely easy to match the timing of locking and unlocking the lock means of the lock pin and the lock plate by solving the disadvantage of the conventional lock means in timing, and the structure thereof is simple. It is designed to be easy to design, manufacture, and assemble.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a horizontal locking pin which is erected on the side surface of a shoji screen and which has a locking hole for fitting and locking the locking pin. The lock plate is movably pivoted, and its gravity swings to a standby position where the lock hole tilts to fit with the lock pin, and conversely the force of the lock pin pushing the lock hole due to the closing motion of the shoji. The rocking hole is swung up to the vertical position at the closed position of the window shoji, and the lock pin fits into the locking hole and locks as the shoji rises from the closed position to the fully closed position. It is configured.

[0008]

【Example】

 1 and 2 show that the upper and lower window shoji (1) and (2) are attached to the right vertical frame (3) (viewed from the inside) of the window frame on the right side (viewed from the inside). The window barriers (1) and (2) are completely opened in FIG. 1 and completely closed in FIG.

A pair of vertical drive rods (4) for opening and closing the window shoji (1), (2) are assembled to a pair of vertical frames (3) facing each other in a vertically movable manner to form a worm gear mechanism. It is moved up and down by the handle (6) via (5).

Hinge arms (7) are fixed to the upper ends of both sides of the upper window shoji (1) at its fixing portions (8), and the upward extending portions (9) from the fixing portions (8). ) Is pivotally attached to the upper end of the drive rod (4) by a lateral pivot (10) (first pivot point).

The support arm (11) has one end pivotally attached to the mounting seat (12) by a lateral pivot (13) (second pivot point) and the other end of the hinge arm (7). The attachment seat (12) is fixed to the vertical frame (3) of the window by being pivotally attached to the fixing portion (8) by the connecting means (14) (third pivot point).

When the drive rod (4) is in the highest position (FIGS. 2 and 3), the window shovel (1) is completely closed, and when the drive rod (4) is lowered from the highest position, the window is closed. The shoji (1) descends while rotating in the opening direction around the pivot (10) by the hinge arm (7) and the support arm (11). When the window shoji (1) reaches a predetermined maximum opening angle (Figs. 1 and 3), the stopper (15) integral with the hinge arm (7) hits the support arm (11), and the window is opened. Stop the shoji (1) at that angle. When the drive rod (4) rises backward from the lowered position, the window shovel (1) rotates in the closing direction around the pivot (10) via the hinge arm (7) and the support arm (11). While rising, it returns to the closed position (Figs. 2 and 3). At this time, the lower portions on both sides of the upper window shoji (1) are automatically locked by the locking means (16) according to the closing movement of the window shoji (1), and when the window shoji (1) is opened, The lock is released automatically.

The locking means (16) is composed of a lock pin (17) and a lock plate (18), and the lock pin (17) is a vertical frame (19) (FIG. 7) on the side surface of the window shoji (1). The lock plate (18) is erected laterally on the mounting seat (20) fixed to the window, and the lock plate (18) is pivotally attached to the mounting seat (21) fixed to the vertical frame (3) of the window with the lateral pin (22). Has been done.

The lock plate (18) has a linear lock hole (23) opening on the lower side thereof, and the lock hole (23) extends in the vertical direction when the lock plate (18) is in the lock position. When it is in the unlocked position, it faces diagonally.

In FIG. 2, when the window shoji (1) is completely closed, the lock pin (17) fits into the lock hole (23) of the lock plate (18) and the lock plate (18). ) Is held in the locked position indicated by the solid line against its gravity (FIG. 3), and at the same time, the stopper (24) of the mounting seat (20) supports the lower side of the lock plate (18). As a result, the lock pin (17) is locked by the lock plate (18), and as a result, the lower end of the window screen (1) is locked. Since this locking means (16) can exert a pulling function in addition to the locking function for the window shoji, an airtight means is provided between the window shoji (1) and the window frame in the locked state to provide the airtight means. If you position it so that the window will work, the window shoji (1) will be locked and at the same time airtight.

When the window shoji (1) is open, the lock plate (18) is rotated by its gravity around the pin (22) to the position of an imaginary line (FIG. 3), and its hypotenuse (25). Hits the stopper (26) of the mounting seat (21) and is held in that position. In this case, the lock hole (23) faces diagonally downward to the left, and the right side (27) of the lock hole (23) is formed longer than the left side (28), so the open end of the right side (27) is It stands by at a position that extends downward beyond the open end of the left side (28).

When the window screen (1) rotates in the closing direction as the drive rod (4) rises, the lock pin (17) contacts the right side (27) of the lock hole (23) of the lock plate (18). Rotate the lock plate counterclockwise around the pin (22). When the window shoji (1) reaches its closed position, the lock hole (23) of the lock plate (18) is oriented in the vertical direction, and the stopper (24) of the mounting seat (20) is locked by the lock plate (18). Reach the position below the bottom edge. In the closed position of the window shoji (1), even if the drive rod (4) rises, it is pulled up to the completely closed position without rotating. As a result, the lock pin (17) rises along the lock hole (23) and fits into the lock hole. In this way, the lower end of the window shoji (1) is also automatically locked. At this time, the stopper (24) of the mounting seat (20) also supports the lower side of the lock plate (18) (Fig. 3).

When the drive rod (4) is lowered to open the window shovel (1), the window shovel (1) is lowered without rotating and the lock pin (17) is moved to the lock hole (23). Although it is engaged with the right side (27), it is moved down to a position displaced from the left side (28). Next, the window shoji (1) is rotated in the opening direction, and the lock pin (17) is moved away from the lock plate (18). As a result, the lock by the lock pin (17) and the lock plate (18) is automatically released.

The lock means (16) of the lock pin (17) and the lock plate (18) will be described in more detail with reference to FIG.

The mounting seat (20) to which the lock pin (17) is attached is formed of a rectangular strip plate material when viewed from the front, and the central portion is bent in a U shape to form a raised wall (29). . On the raised wall (29), the lock pin (17) is erected in the lateral direction and a stopper (24) is formed by bending at one side thereof, and the stopper (24) is formed on the lock plate (18). The lower side (30) of which holds the plate in the locked position. The flanges (31) at both ends of the mounting seat (20) are faced and fixed to the vertical frame (19) of the window shoji (FIG. 7).

The lock plate (18) includes a horizontal upper side (32), a right side (33) extending vertically downward from its right end, and a first lower side (34) extending horizontally left from its lower end. , The first hole side (right side) (27) for forming the lock hole extending vertically upward from the left end thereof, and the second hole side for forming the lock hole extending vertically downward from the upper end thereof in an arc shape. (Left side) (28), the second lower side (30) that extends horizontally leftward from the lower end, and the oblique line (25) that extends diagonally to the upper left from the left end and intersects the left end of the upper side (32) It is formed in a plate shape. The first hole side (27) extends longer than the second hole side (28), so that a step is formed between the first lower side (34) and the second lower side (30). Therefore, when the window shoji (1) is closed, the lock pin (17) passes below the second lower side (30) and hits the first hole side (27), and the lock plate (18) is attached to the pin (22). Rotate counterclockwise around. The second lower side (30) is supported by the stopper (24) of the mounting seat (20).

Like the mounting seat (20) for the lock pin (17), the mounting seat (21) for the lock plate (18) is formed in a rectangular shape with a strip-shaped plate material when viewed from the front, and its central portion is The raised wall (35) is formed by bending it in a letter shape, and the flanges (36) at both ends thereof are fixed to the vertical frame (3) of the window. On the raised wall (35), the intersection of the upper side (32) of the lock plate (18) and the hypotenuse (25) is pivotally attached by a pin (22), and between this pin (22) and the side (33). The lock hole (23) is located at. Therefore, the lock plate (18) is always urged clockwise by its gravity around the pin (22), and in the unlocked state, it rotates until it engages with the stopper (26) of the raised wall (35). And wait at that position. The raised wall (35) of the mounting seat (21) and the leg wall (37) connected to the raised wall (35) have their corners deleted to form a passage (38) for moving the lock pin (17). There is.

The raised wall (29) of the mounting seat (20) for the lock pin (17) and the raised wall (35) of the mounting seat (21) for the lock plate (18) are the vertical frame of the window shoji (1). It is located in the middle of the gap between the window (19) and the vertical frame (3) of the window (Fig. 7), and locks and unlocks the lock pin (17) and the lock hole (23) of the lock plate (18). Smooth out.

As shown in FIG. 6, the connecting means (14) for connecting the hinge arm (7) and the supporting arm (11) has an enlarged circular hole (38) and a narrow straight line communicating with this hole. The connecting hole (40) formed by the hole (39) and the arc-shaped outer peripheral end surfaces (41) that are symmetrically arranged with respect to the center of rotation and rotate along the inner peripheral surface of the enlarged circular hole (38). ) And these outer peripheral end faces are connected by a flat surface in a narrow parallel relationship with each other and are fitted in a straight hole (39). It is composed of a connecting pin (43). The connecting hole (40) is bored in the hinge arm (7), and the connecting pin (43) is erected laterally in the supporting arm (11) to connect with the straight hole (39) of the connecting hole (40). The direction of the center line connecting both outer peripheral end surfaces (41) of the pin (43) and the side surface (42) of the connecting pin should be oriented vertically when the window shoji (1) is in the closed position. It is arranged.

When the window shoji (1) is completely closed (FIG. 3), the side surface (42) of the connecting pin (43) fits into the straight hole (39) of the connecting hole (40), The hinge arm (7) and the support arm (11) are locked so that they cannot rotate relative to each other. At this time, even if the window shoji (1) is opened, the hinge arm (7) and the support arm (11) cannot rotate around the pivots (10) and (13), and the window shoji (1) ) Is locked in the closed position and this locked state is maintained. The connecting means (16) by the connecting hole (40) and the connecting pin (43) can also have a pulling function in addition to the locking mechanism for the window shoji (1), so that the window shoji (1) is locked. When the position of the airtight means is determined so that the airtight means between the window shovel (1) and the window frame works in the closed state, the window shoji (1) is locked and at the same time airtight.

When the window shoji (1) is open (FIG. 3), the connecting pin (43) has its outer peripheral end surface (41) rotatable along the inner peripheral surface of the enlarged circular hole (38). Fits in the enlarged circular hole and functions like the original pivot.

When the drive rod (4) is raised in the opened state of the window shovel (1) shown in FIG. 1 and the window shoji (1) is closed, the outer peripheral end surface (41) of the connecting pin (43) has a connecting hole. It rotates along the inner peripheral surface of the enlarged circular hole (38) of (40) (Fig. 3). When the window shoji (1) reaches the closed position, the side surface (42) of the connecting pin (43) is aligned with the straight hole (39) of the connecting hole (40). When the window sliding door (1) is completely closed, it only rises without rotation, so that the connecting pin (43) moves relative to the enlarged circular hole (38) toward the straight hole (39). Then, the side surface (42) of the connecting pin is guided by the straight hole (39) and fitted therein (FIG. 3). As a result, the upper end of the window shoji (1) is automatically locked and kept airtight.

In this locked state, when the drive rod (4) is lowered, the window shoji (1) does not rotate in the first stroke but only descends, while the side surface (42) of the connecting pin (43) is lowered. It moves along the straight hole (39) of the connecting hole (40) and moves out of the straight hole (39) to reach the enlarged circular hole (38) relatively (FIG. 3). At the same time, the lock between the hinge arm (7) and the support arm (11) is automatically released, and the window shoji (1) can be opened.

The hinge arm (7), the support arm (11) and their connecting means will be described in more detail with reference to FIG.

The hinge arm (7) is formed of a strip-shaped plate material having substantially the same width as seen from the front, from the fixing portion (8) to the extending portion (9). The fixing portion (8) extends in the longitudinal direction so as to be parallel to the side surface of the window shoji (1), and the fixing portion (8) is provided with a connecting hole (40). The extending portion (9) extends obliquely upward and rightward from the upper end of the fixing portion (8) in the direction of the drive rod (4) and is pivotally attached to the drive rod (4) by a pivot (10).

The fixed portion (8) of the hinge arm (7) has a raised wall (44) formed by bending the central portion into a U shape. The connecting hole (40) is bored in the raised wall (44), and the raised wall (44) is formed between the vertical frame (19) of the window shoji (1) and the vertical frame (3) of the window. (Fig. 8), the connection between the hinge arm (7) and the support arm (11) by the connecting pin (43) and the opening and closing of the window shoji (1) are facilitated.

The enlarged circular hole (38) and the straight hole (39) of the connecting hole (40) are arranged in the longitudinal direction along the center line of the raised wall (44) of the fixed portion (8) of the hinge arm (7). The connection hole (40) can be positioned, processed, assembled, and attached accurately and easily.

The raised wall (44) further has a stopper (15) bent at a right angle on its side, and this stopper (15) engages with the side of the support arm (11). Thus, the opening angle between the hinge arm (7) and the support arm (11) is limited as described above. The hole (45) in the fixing portion (8) of the hinge arm (7) is used for a mounting screw for fixing the hinge arm (7) to the vertical frame (19) of the window shovel (1).

The extending portion (9) is bent so that a step is formed between the extending portion (9) and the fixing portion (8), and the tip of the extending portion (9) is pivotally attached to the drive rod (4) by the pivot shaft (10). ing. This step also provides a clearance for mounting the restraint between the vertical frame (19) of the window shoji and the vertical frame (3) of the window.

Similarly to the hinge arm (7), the support arm (11) is also formed of a strip-shaped plate material having the same width from the connecting pin (43) to the pivot shaft (13). In this support arm (11), the portion (46) supporting the connecting pin (43) overlaps the fixed portion (8) of the hinge arm (7) when the window screen (1) is closed. Like the fixing portion (8) of the lever, it extends in the longitudinal direction so as to be parallel to the drive rod (4) and the vertical frame (19) of the window shovel (1). The support portion (46) of the connecting pin (43) is provided with a square hole (47), and the square shaft (48) of the connecting pin (43) is inserted into the square hole (47) to cover the end of the square hole (47). It is tight. The center line connecting the outer peripheral end faces (41) of the connecting pins (43) is oriented vertically along the vertical center line of the hinge support portion (46), and like the connecting hole (40). Positioning of the connecting pin (43), processing, assembly, and mounting can be performed accurately and easily.

The extending portion (47) from the end of the support portion (46) of the connecting pin (43) to the pivot shaft (13) extends obliquely downward to the right in the direction of the drive rod (4) and has a step at the tip thereof. Bend it so as to form a step, and pivot its tip end to the mounting seat (12) with the pivot (13). Similar to the step of the hinge arm (7), this step forms a gap for attaching a restraint between the vertical frame (19) of the window shovel (1) and the vertical frame (3) of the window ( (Figure 8).

The line segment connecting the axis (10) -the axis (13) -the connecting pin (43) -the axis (10) always forms a triangle regardless of whether the window shoji (1) is opened or closed (Fig. 3). , The connecting pin (43) is located in a position projecting in the opening direction of the window shoji (1) from the line segment connecting the axis (10) and the axis (13) (Fig. 3), so that the drive rod (4) The hinge arm (7) and the support arm (11) can be smoothly opened and closed according to the vertical movement.

In the connecting means (14) of the hinge arm (7) and the supporting arm (11), the connecting hole (40) of the hinge arm (7) has the connecting pin (11) of the supporting arm (11). By ascending along 43), the locking pin (43) of the locking means (16) can also ascend along the locking hole (23) of the locking plate (18) (FIG. 3). The lock pin (17) and the lock plate (18) are more sufficiently engaged with the lock.

The means for moving the drive rod (4) up and down are, as shown in FIG. 4 in particular, a manual handle (6) and a worm (not shown) which rotates integrally with the shaft of the handle. ), A worm gear mechanism (5) composed of a worm gear (50) meshing with the worm, and an operating arm (51) rotating integrally with the worm gear (50). , A transmission rod (53) pivotally attached to the operation arm by a pin (52), a crank arm (55) pivotally attached to the transmission rod by a pin (54), and the crank arm. A pin (54) common to the crank arm (55) and a transmission shaft (56) fixed to rotate integrally and extending from one vertical frame (3) of the window to the other vertical frame (not shown). It is composed of a transmission rod (58) having one end pivotally attached to the drive rod (4) and the other end pivotally attached to the drive rod (4) by a pin (57).

When the handle (6) is turned to the right, the worm gear (50) rotates integrally with the operation arm (51) in the counterclockwise direction around the shaft (62), and the crank arm (55). Also rotates in the same direction via the transmission rod (53). The crank arm (55) further lowers the drive rod (4) via the transmission rod (58) to open the upper and lower window shoji (1), (2). In that state, when the handle (6) is turned to the left, most of the space between the handle and the drive rod (4) moves in the opposite direction to raise the drive rod and close the upper and lower windows.

Like the upper window screen (1), the lower window screen (2) also has a hinged arm (7), a support arm (11), and a drive rod (4) common to the vertical window frame (3). And is opened and closed in the same manner as the upper window screen (1) according to the vertical movement of the drive rod (4). At this time, the upper part of the lower window shoji (2) is automatically locked and released, and pulled and released similarly to the upper window shoji (1). The lower part of the lower window screen (2) is also provided with a locking means (16) 'which also serves as a puller like the upper window screen (1). The locking means (16) 'includes a lock pin (60) erected on a mounting seat (59) fixed to the lower side surface of the window shoji (2) and a lock cam (61) erected on a crank arm (55). )) (Fig. 4). Then, when the window shoji (2) is closed, the lock cam (61) engages with the lock pin (60) and pushes the pin to lock the window shoji (2) and pull it airtightly on the window frame. Gather. When the window shoji (2) is opened, the lock cam (61) separates from the lock pin (60) to unlock and pull it.

On the side surface opposite to the window screens (1) and (2), of course, the drive rod (4), the hinge arm (7), the support arm (11), and the locking means for the upper and lower window screens. There are provided (16), (16) ', a crank arm (55) for operating these, and a transmission rod (58), which operate simultaneously via the transmission shaft (56).

[0043]

[Effect of device]

 According to the present invention, as described above, the horizontal locking pin (17) is erected on the side surface of the window shoji and the locking plate (23) for locking the locking pin (17) by fitting the locking plate (17). The lock plate (18) is pivotally attached to the vertical frame (3) of the window by a lateral pin (22) so that the lock hole (23) is tilted by its gravity to lock the lock plate (18). The lock pin (17) is oscillated to the standby position where it fits, and conversely the lock pin (17) pushes the lock hole (23) according to the closing motion of the window shovel so that the lock hole is oriented in the vertical direction. ) Is rocked to the position where it is locked, so the timing of opening and closing the window shoji and locking and unlocking the lock pin (17) and the locking means with the lock plate (18) are synchronized. It is extremely easy, and its structure is simplified, so that it is easy to design, manufacture, and assemble. Further, the connecting means between the hinge arm (7) and the support arm (11) is provided with a connecting hole (40) formed by an enlarged circular arc (38) and a straight hole (39) and an outer peripheral end face which rotates within the enlarged circular arc (38). The lock pin (17) and the lock hole (23) are more securely meshed with each other because the lock pin (17) and the lock hole (23) are engaged with each other because the connecting pin is formed by the side surface (42) that fits into the straight hole (39) and locks. Becomes

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a window according to an embodiment of the present invention showing a state in which a window shoji is opened.

FIG. 2 is a vertical cross-sectional side view of a window similar to that of FIG. 1 showing a window screen closed.

FIG. 3 is a partially enlarged vertical side view of the window showing the opened / closed state of the upper shoji of FIG.

4 is a partially enlarged vertical side view of the window showing the opened / closed state of the lower shoji of FIG. 1. FIG.

FIG. 5 is an exploded perspective view of the locking means for the upper shoji.

FIG. 6 is an exploded perspective view of a hinge arm and a support arm.

FIG. 7 is an enlarged cross-sectional view taken along the line AA of FIG.

FIG. 8 is an enlarged cross-sectional view taken along line BB of FIG.

[Explanation of symbols]

1 Upper window shoji 2 Lower window shoji 3 Vertical frame 4
Drive rod 5 Worm gear mechanism 6 Handle
7 Hinge arm 10 Axis 1 of the first pivot point 1
1 Support Arm 13 Axis of Second Pivot Point 14
Third pivot point connecting means 16 Locking means 16 '
Locking means 17 Lock pin 18 Lock plate 22 Pin 23 Lock hole 40 Connecting hole 43 Connecting pin 50 Worm gear 51
Operation arm 53 Transmission rod 55 Crank arm 56 Transmission shaft 58 Transmission rod 60 Lock pin 61 Lock cam

Claims (6)

[Scope of utility model registration request] 1. A vertically long drive rod which is incorporated in a vertical frame of a window and moves up and down along the vertical direction, and an extension portion which is fixed to an upper end of a vertical frame of a window shoji and is above the drive rod. A hinge arm pivotally attached at a first pivot point, a mounting seat fixed to a vertical frame of the window at a position below the hinge arm, and a second pivot point attached to the mounting seat. A support arm having one end and the other end pivotally attached to the hinge arm at a third pivot point is provided, and the first pivot attachment of the window shovel is performed while moving the window shovel up and down in accordance with the vertical movement of the drive rod. In the case of opening and closing with a point as the center of rotation, means for automatically locking the window shoji at its closed position is provided between the window shoji and the vertical frame of the window. A locker having a lock hole that is erected on a mounting seat that is fixedly attached to the lock pin and that engages with and locks the lock pin. The plate is pivotally attached to a mounting seat fixed to a vertical frame of the window by a pin so that the lock hole linearly extends to the lower side of the lock plate and opens there.
When the window screen is open, the lock plate is rotated in the opening direction due to its own weight to incline in the same direction to take the standby position where it fits with the lock pin, and when the window screen is closed, the lock pin is closed. Part of the opening of the lock hole is pushed by and the lock plate rotates with the lock plate to the lock position where it is oriented in the vertical direction and stops, and the lock pin moves along the lock hole when the closed position of the window shovel rises. And a window shoji restraining device that is raised and then fitted and locked in the lock hole. 2. The pivot plate of the lock plate is located at a position eccentric from the center of gravity in the opening direction of the window shoji so that the lock plate is rotated in the opening direction of the window shovel by its own gravity. The lock hole takes the tilted unlocked position, and the hole side of the lock hole on the closing direction side of the window shovel extends and opens below the hole wall surface of the window shovel on the opening direction side. The restraint device for a window shoji according to claim 1, which serves as a contact surface of the lock pin when the lever is rotated to the lock position. 3. When the window sliding door is closed and the lock plate is in the locked position, a stopper for supporting the lower side thereof is provided on a mounting seat fixed to the side surface of the window sliding door.
The lock pin is held in the locked position until the lock pin descends the lock hole and separates from the opening when the window sliding door is opened to assist the lock pin in coming out of the lock hole.
2. A restraining device for a window shoji according to any one of 1 and 2. 4. The mounting seat of the lock pin has a stopper, and the stopper holds the lock plate in an unlocked position in which the lock pin is appropriately inclined for engaging the lock pin with the lock hole. The window restraint device according to any one of 1 to 3. 5. The connecting means at the third pivot point includes a connecting hole formed by an enlarged circular hole formed in the hinge arm and a narrow linear hole communicating with the enlarged circular hole, A pair of outer peripheral end surfaces which stand upright at the other end of the support arm and rotate along the inner peripheral surface of the enlarged circular hole at symmetrical positions with respect to the center of rotation, and these outer peripheral end surfaces are in a narrow parallel relationship. It is constituted by a pair of flat side-faced connecting pins having a cross-sectional shape and fitted in the straight hole to prevent relative rotation of the hinge arm and the support arm. Each direction of the center line connecting the straight hole and the outer peripheral end surface of the connecting pin and the side surface of the connecting pin is directed in the vertical direction parallel to the drive rod when the window shutter is closed, and the outer peripheral end surface of the connecting pin rotates with respect to the enlarged circular hole. Open and close the window shoji with the side wall of the connecting pin to the straight hole The window shoji restraint device according to any one of claims 1 to 4, wherein the shoji screen is locked in its closed position. 6. The restraint device for a window shoji according to claim 1, wherein the drive rod is vertically moved by a manual handle via a worm gear mechanism.