JPH0310303Y2 - - Google Patents

Description

[Detailed explanation of the invention] a. Purpose of the invention (industrial application field) The link device of the locking device for sliding door shoji according to this invention is suitable for use in entrances and exits of balconies such as schools, corridors,
Attached to sweeping window-type sliding doors in school lunch rooms, etc., or windows installed at high places and used as fire entrances,
When the shoji is closed, the side of the stile of this shoji is pressed against the packing provided on the window frame side to achieve soundproofing inside and outside the shoji, and it is also built into a locking device that locks the shoji from opening, and this locking device can be operated. It is used to interlock the operating handles installed inside and outside the sliding door shoji.

(Prior Art) In a sliding door shoji called a so-called soundproof sash, when the shoji is closed, the side surface of the stile is pressed against a packing attached to a sash frame or the like facing the sill. For this reason, a locking device for fixing a soundproof sliding door shoji is provided with a pulling mechanism for moving the entire sliding door shoji in parallel toward the above-mentioned packing.

5 to 7 show conventional locking devices equipped with such a pulling mechanism. First, this conventional locking device will be explained.

1 is a handle for operating the locking device;
A base body 4 fixed with screws to the vertical stile 3 of the sliding door shoji 2
It is rotatably supported. An arm 6 having a roller 5 supported at its tip is provided at the base of the handle 1. A substantially L-shaped protruding wall 8 is formed on the side surface of the vertical frame or mating mullion 7 facing the vertical frame 3 to which the base body 4 for supporting the handle is fixed, at the same height as the base body 4. A bracket 9 is fixed with screws. Arm 6 supporting the roller 5 mentioned above
When the handle 1 is rotated approximately 150 degrees from the solid line position to the chain line position shown in FIG. The projecting wall 8 is engaged with the projecting wall 8. For this reason,
The arm 6 is attached to the handle 1 so as to be freely rotatable by about 60 degrees. Due to the engagement between the rollers 5 and the projecting wall 8 described above, the vertical stile 3 of the sliding door shoji 2 is moved to the mating mullion 7.
7, and the side of the vertical stile 3 is pressed toward the packing attached to the side of the mullion.

On the other hand, the end of the rotating shaft of the handle 1 described above is inserted into the base plate 10 of the locking device fixed inside the vertical frame 3, and a piece 11 that rotates with the rotation of the handle 1 is supported. . The end of this piece 11 is connected to a lower sliding plate 12 supported on the lower part of the base plate 10 so as to be able to move only in the vertical direction, by a link (not shown), and as the piece 11 rotates, the lower sliding plate 12 It is configured so that it moves up and down. The upper end of this lower sliding plate 12 is pivotally connected to one end of a rotary plate 13 whose center is pivoted to the base plate 10. Furthermore, the lower end of an upper sliding plate 14 supported on the upper part of the base plate 10 so as to be movable only in the vertical direction is pivotally connected to the other end of the rotary plate 13.

Because of this configuration, the above-mentioned handle 1
When the rollers 5 and the receivers 9 are engaged by rotating, the upper sliding plate 14 mounted on the substrate 10 simultaneously moves downward and the lower sliding plate 12 moves upward. One end portion of a connecting rod 15 is connected to each of the upper and lower sliding plates 14 and 12, respectively. The other end of each connecting rod 15, 15 arranged vertically inside the vertical stile 3 is attached to a shaft 1 at both the upper and lower ends of the vertical stile 3.
It is engaged with one end of a pulling piece 17 supported so as to be freely rotatable around 6. Each pulling piece 1
The other ends of 7 and 17 face the ridge 19 on the lower surface of the upper frame 18 or the indoor side surface of the door roller rail 21 on the upper surface of the lower frame 20. When the handle 1 is rotated to move the upper sliding plate 14 downward and the lower sliding plate 12 upward, the pulling piece 17 pivoted on the upper end of the vertical stile 3 moves to the sixth position around the shaft 16. The pulling pieces 17 at the lower end rotate clockwise in the counterclockwise direction in the figure, and the end of each pulling piece 17 abuts against the protrusion 19 or the indoor side surface of the door roller rail 21 to close the sliding door shoji. The upper and lower ends of the sliding door shoji 2 are moved toward the indoor side (right side in FIG. 6), and the indoor sides of the upper stile 22 and lower stile 23 of this sliding door shoji 2 are attached to the upper frame 18 or the lower frame 20. Press it to 27. Since the locking devices are provided at both ends of the sliding door shoji 2, when the handles 1 of both locking devices are rotated, the sliding door shoji is pressed against the packing 24 all around, thereby creating an airtight space between the sliding door shoji and the window frame. By holding the sliding door shoji, soundproofing between the inside and outside is achieved.

(Problems to be Solved by the Invention) Sliding door shoji equipped with the above-mentioned locking device are sometimes installed at the entrances and exits of balconies or connecting corridors of schools, etc. In such cases, it is necessary to be able to lock the sliding door shoji from both the indoor and outdoor sides, but there have been no locking devices that meet this requirement. In other words, in the conventional locking device, the operating handle was only provided on the indoor side of the sliding door shoji and not on the outdoor side, so when closing the sliding door shoji from the outdoor side, each stile side of the sliding door shoji must be turned toward the packing. It cannot be pressed against the wall, making it impossible to achieve sufficient soundproofing indoors and outdoors.

In order to be able to lock and release the sliding door shoji from either the inside or outside of the shoji, a pair of operating handles may be provided inside and outside the shoji, and the two handles may be interlocked. Like this 1
It is possible to use gears as a transmission mechanism to interlock the pair of handles, but this is not the best method as it not only increases production costs but also increases the force required to operate the handles due to meshing resistance. .

In view of the above-mentioned circumstances, the present invention provides a locking device for a sliding door shoji in which a pair of handles are provided inside and outside the sliding door shoji so that the sliding door shoji can be operated from either indoors or outdoors, and the above-mentioned handles are interlocked. The purpose is to provide a link device that can

b. Structure of the invention (Means for solving the problem) As shown in FIG. , a pair of pieces 11a, 11b connected by a link device and rotating in opposite directions are provided, and a non-circular hole for inserting the shaft of the operating handle into the rotation center of each piece 11a, 11b. It forms 28.

Furthermore, one end of a connecting arm 29a, 29b is pivotally attached to a portion of each piece 11a, 11b that is away from the center of rotation by a shaft 30, respectively. Furthermore, both connecting arms 2
The other ends of 9a and 29b are pivotally connected to each other by one shaft 31. Furthermore, if necessary, the end 31a of this single shaft 31 can be connected to both connecting arms 29a, 29.
b, and is inserted into a hole 32 formed in a sliding plate 33 slidably attached to the base plate 10 in order to drive the pulling mechanisms provided at both the upper and lower ends of the sliding door shoji.

(Function) In the link device of the sliding door shoji lock device of the present invention configured as described above, each piece 11a,
If one of the pair of operation handles, whose rotation shaft is inserted into the hole 28 of 11b, is rotated, one of the pieces 11a or 11b will rotate, and accordingly, one of the connecting arms 29a or 11b will rotate. 29b moves in the vertical direction in FIG. 1, and this connecting arm 29a or 29
b and the other connecting arm 29b connected by the shaft 31.
Alternatively, 29a also moves up and down by the same distance. As a result of the other connecting arm 29b or 29a also moving up and down in this way, the other piece 11b or 11a to which the end of the connecting arm 29b or 29a is pivoted rotates in the opposite direction to the one piece 11a or 11a. , this piece 1
The other handle, whose shaft is inserted through the hole 28 of 1b or 11a, also rotates in the opposite direction. At the same time, the end 31a of the shaft 31 to which the connecting arms 29a and 29b are pivotally connected pushes and pulls the sliding plate 33.
3 along the substrate 10 in the vertical direction of FIG. Therefore, if both handles are arranged separately on the indoor side and the outdoor side of the sliding door shoji, the lock device can be operated from either inside or outside.

When opening and closing a sliding door shoji, rotating either handle drives the pulling mechanism that moves the vertical stile toward the mating mullion or vertical frame, and at the same time moves the sliding door attached to the board. Raise and lower the moving plate,
The connecting rod drives the pulling mechanisms provided at both the upper and lower ends of the sliding door shoji.

(Example) Next, embodiments of the present invention will be described.

FIG. 2 is a side view of a locking device for a sliding door shoji incorporating the link device of the present invention, and FIG. 3 is a cross-sectional view showing a state in which it is attached to a sliding door shoji.

A pair of left and right pieces 11a and 11b are attached to both sides of the lower part of a board 10 fixed to the vertical stile 3 of the sliding door shoji 2. Each piece 11a, 11b is formed in the shape of a daruma as a whole, and has a non-circular hole 28 at the end on the rotation center side through which a handle for operation is inserted. One ends of connecting arms 29a, 29b constituting the link device of the present invention are pivotally supported by a shaft 30 at portions of these pieces 11a, 11b slightly away from the hole 28. Further, the other ends of each connecting arm 29a, 29b are connected to each other by a shaft 31, and the shaft 31 projects from the end 3 of each connecting arm 29a, 29b.
1a is engaged with a long hole 32 of a first sliding plate 33 that is supported at the bottom of the substrate 10 so as to be movable up and down. Reference numeral 34 denotes a vertically long elongated hole bored in the first sliding plate 33, and the elongated holes 34, 34 and the substrate 1
The pins 35, 35, which are set up at 0, are engaged with each other.

On the other hand, a horizontally long elongated hole 36 is formed at the upper end of the first sliding plate 33, and a pin 38 provided at one end of the rotary plate 37 engages with this elongated hole 36. This rotary plate 37 is rotatably supported on the substrate 10 by a shaft 39 provided at the center, and a similar pin 40 is provided at the other end. This rotating plate 3
A pin 40 provided at the other end of the board 10 engages with a horizontally elongated hole 42 provided in the middle of a second sliding plate 41 provided vertically slidably on the top of the substrate 10. There is. Pins 44 , 44 erected on the base plate 10 are engaged with vertically elongated holes 43 , 43 formed in the upper and lower parts of the second sliding plate 41 , respectively. can be freely moved only in the vertical direction with respect to the substrate 10.

As described above, the sliding door lock device constructed by incorporating the link device of the present invention is attached to the inside of the vertical stile 3 of the sliding door shoji 2, as shown in FIG.
That is, the base plate 10 and the cover plate 45 are screwed together to form a casing, and this casing is screwed inside the vertical frame 3. Estimated dimensions compared to vertical frames used for conventional sliding door shoji (vertical width in Figure 3)
The vertical stile 3, which has a large shape, secures sufficient mounting space on the outdoor side and indoor side of the glass 46, and the rotation axis of the pair of operating handles 1a and 1b provided indoors and outdoors is located on this vertical stile 3. The holes 28 and 2 of the pieces 11a and 11b are inserted through the holes formed in the side surface and the cover plate 45.
8 is fitted. Among the handles 1a and 1b, the handle 1 is provided on the indoor side of the glass 46.
At the base of b is a conventional handle 1 shown in FIG.
As in the case of , an arm 6 supporting a roller 5 is provided at the end.

The locking device that incorporates the link device of the present invention and attaches it to the vertical frame of a sliding door shoji is constructed as described above, so that one of the pair of handles 1a and 1b provided inside and outside the sliding door shoji When rotated, the other handle also rotates in conjunction with the other handle, allowing the sliding door shoji to be locked and unlocked from either indoors or outdoors.

That is, for example, when attempting to lock the sliding door shoji by rotating the handle 1b on the indoor side, the handle 1b is rotated in the same way as the handle 1 shown in FIG.
Rotate from the solid line position to the chain line position. As the handle 1b is rotated in this manner, the piece 11b on the right side of FIG.
The connecting arms 29a and 29b connecting the parts b move upward. This causes the left piece 11a to rotate counterclockwise by the same angle. Connecting arms 29a, 29
When b rises, the end 31a of the pin 31 connecting both arms 29a and 29b moves to the upper end of the long hole 32 of the first sliding plate 33, and by further rotating the handle 1b, this second Pull up the first sliding plate 33. Here, connecting arms 29a, 29b
In order to prevent the first sliding plate 33 from being pulled up immediately after the roller 5 and the receiver 9 are raised, the reason why the hole that the end 31a of the pin 31 engages with is set as the elongated hole 32 is because the roller 5 and the receiver 9 are engaged with each other. This is because the distance that the first and second sliding plates 33, 41 must be moved is small compared to the angle that the handle 1b must be rotated to do so. Therefore, if it is desired to increase the distance by which both sliding plates 33 and 41 are moved during locking, the holes formed in the first sliding plate 33 for engaging the end portions 31a should be made as shown in FIG. A simple circular hole is used so that the sliding plate 33 can be pulled up immediately after the connecting arms 29a, 29b are raised.
As the first sliding plate 33 rises, this sliding plate 33
The second sliding plate 41, which is connected to the upper end of the rotating plate 37 via the rotary plate 37, is lowered. Both first and second sliding plates 3
Connecting rods 15 (fifth to
6) are connected, the pulling pieces 17 (Figs. 5 and 6) rotate at both the upper and lower ends of the sliding door shoji 2 as the above-mentioned sliding plates 33 and 41 move up and down. , an action is performed to draw the sliding door shoji toward the indoor side.

In the illustrated embodiment, since the vertical stile 3 on the right side in FIG. 3 faces the matching mullion 7 when the sliding door shoji is closed, the above-mentioned means for moving this vertical stile 3 toward the indoor side is used. Although a combination of the roller 5 and the support 9 was used, since the left side vertical stile 3a faces the vertical frame 47 when closed, the means for moving the vertical stile 3a toward the indoor side is provided between the vertical frame 47 and the vertical frame 47. must be established. Of course, the support 9 may be fixed to this vertical frame 47 and engaged with the roller 5 provided at the base of the handle, but in the example shown in FIG. Instead, a cam body 48 as shown in FIG. 4 is provided on the outer surface of the vertical stile 3a, which moves up and down as the handles 1a and 1b rotate. This cam body 48 is connected to either the first or second sliding plate 33, 41 provided on the locking device. On the other hand, a pin 49 is fixed at a position facing the cam body 48 on the inner surface of the vertical frame 47. When one of the handles 1a and 1b provided on the left vertical stile 3a is rotated to lock the sliding door shoji 2, the cam body 4 provided on the outer surface of the vertical stile 3a is rotated.
8 rises or descends, the pin 49 on the inner side surface of the vertical frame rides on the convex portion of the cam body 48, and as a reaction, the vertical frame 3a moves toward the indoor side.

c. Effects of the invention The link device of the locking device for sliding door shoji of this invention is constructed and operates as described above, but the structure is simple, so the production cost does not increase, and locking and unlocking of sliding door shoji can be done indoors. Since it can be done from either outside with a light force, if it is installed at the entrance of a school balcony, it can lock the sliding door even when people are out on the balcony, thereby soundproofing indoor and outdoor areas. .

[Brief explanation of the drawing]

Fig. 1 is a side view showing a link device of a lock device for sliding door shoji of the present invention, Fig. 2 is a side view showing an embodiment of a lock device incorporating this link device with the cover plate removed, and Fig. 3 is a side view showing a lock device of the present invention. The figure is a cross-sectional plan view of a sliding door shoji equipped with this locking device, FIG. 4 is a perspective view of a pulling mechanism installed in a vertical stile, FIG. 5 is a perspective view of a sliding door shoji equipped with a conventional locking device, and FIG. 6 is a perspective view of a sliding door shoji equipped with a conventional locking device. 7 is a side view showing the upper and lower parts of this sliding door shoji, and FIG. 7 is a side view of a handle having a pulling mechanism. 1, 1a, 1b: Handle, 2: Sliding door shoji,
3, 3a: Vertical stile, 4: Base, 5: Roller, 6: Arm, 7: Mulled mullion, 8: Projection wall, 9: Receiver, 1
0: Substrate, 11, 11a, 11b: Piece, 12: Lower sliding plate, 13: Rotating plate, 14: Upper sliding plate, 15:
Connecting rod, 16: Axis, 17: Pull piece, 18: Upper frame, 19: Projection, 20: Lower frame, 21: Door wheel rail, 22: Upper stile, 23: Lower stile, 27: Packing, 28: Hole , 29a, 29b: connecting arm, 30:
Shaft, 31: Shaft, 31a: End, 32: Hole (long hole),
33: Sliding plate, 34: Long hole, 35: Pin, 36:
Long hole, 37: rotating plate, 38: pin, 39: shaft, 4
0: Pin, 41: Sliding plate, 42: Long hole, 43: Long hole, 44: Pin, 45: Cover plate, 46: Glass, 4
7: Vertical frame, 48: Cam body, 49: Pin.

Claims (1)

[Scope of utility model registration request] A link device that is incorporated into a locking device for a sliding door shoji that locks the sliding door shoji by rotating one of a pair of handles provided inside and outside the sliding door shoji, and that causes the pair of handles to interlock with each other. A pair of pieces having a non-circular hole at the center of rotation into which the shafts of the pair of handles are inserted are rotatably mounted on both sides of the board, and one end of each piece is pivotally attached to a portion of each piece that is off the center of rotation. A link device for a lock device for a sliding door shoji door, which is constructed by pivotally connecting the other ends of a pair of connecting arms to each other by the same shaft.