JPH0310300Y2 - - 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 used for sweeping window type sliding doors of balconies entrances and exits of schools, etc., connecting corridors, school lunch rooms, etc. Or, it is attached to a window installed in a high place and used as a fire entrance, and when the shoji is closed, the side of the stile of this shoji is pressed against the packing provided on the window frame side, and the soundproofing inside and outside of the shoji is achieved. At the same time, it is incorporated into a lock device that locks the shoji from opening, and is used to interlock handles provided inside and outside the sliding door shoji in order to operate this lock device.

(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.

4 to 6 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 to the vertical stile 3 of the sliding door shoji 2 with screws
It is rotatably supported. This handle 1
An arm 6 with a roller 5 supported at its tip is attached to the base of the
is provided. 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 receiver 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.
6, 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 and the lower sliding plate 12 mounted on the substrate 10 simultaneously move downward and upward, respectively. One end portion of a connecting rod 15 is connected to each of the upper and lower sliding plates 14 and 12, respectively. Vertical stile 3
Each connecting rod 1 arranged vertically inside the
The other ends of 5 and 15 are connected to shafts 16 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 able to rotate freely around the center. Each pulling piece 17,
The other end of 17 is opposed to 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 engage the roller 5 and the receiver 9, and at the same time the upper sliding plate 14 is moved downward and the lower sliding plate 12 is moved upward, the upper end of the vertical stile 3 is pivoted. pulled piece 1
7 in the counterclockwise direction in FIG. 5 centering on the axis 16,
The pulling pieces 17 at the lower end similarly rotate clockwise, and the end of each pulling piece 17 abuts against the protrusion 19 or the indoor side surface of the door roller rail 21, pulling both the upper and lower ends of the sliding door shoji 2 into the room. The sliding door shoji 2 is moved inward (right side in FIG. 5), and the indoor side surfaces of the upper stile 22 and lower stile 23 of the sliding door shoji 2 are pressed against the packing 24 attached to the upper frame 18 or the lower frame 20. 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 solve this problem, a locking device as shown in Figure 2 is provided with operating handles inside and outside the sliding door shoji, and this locking device can be operated from either the inside or outside of the sliding door shoji. Just do it like this. First, the structure and operation of the sliding door shoji lock device shown in FIG. has been done. Each piece 11a, 11b is formed in the shape of a daruma as a whole, and has a non-circular hole 27 at the end, which is the center of rotation, through which a handle for operation is inserted. One ends of connecting arms 28a, 28b constituting a link mechanism are pivotally supported by a shaft 29 at portions of these pieces 11a, 11b slightly away from the hole 27. Further, the other ends of each connecting arm 28a, 28b are connected to each other by a shaft 30, and each connecting arm 28a, 28b is connected to each other by a shaft 30.
An end portion 30a where this shaft 30 protrudes from a and 28b.
is engaged with a long hole 32 of a first sliding plate 31 supported vertically movably at the bottom of the substrate 10. 3
Reference numeral 3 denotes a vertically long elongated hole bored in the first sliding plate 31, and the elongated holes 33, 33 are engaged with pins 34, 34 planted in the substrate 10.

On the other hand, a horizontally long elongated hole 35 is formed in the upper end of the first sliding plate 31, and a pin 37 provided at one end of the rotary plate 36 engages with this elongated hole 35. This rotary plate 36 is rotatably supported on the substrate 10 by a shaft 38 provided at the center, and a similar pin 39 is provided at the other end. This rotating plate 36
The pin 39 provided at the other end engages with a horizontally elongated hole 41 provided in the middle of a second sliding plate 40 provided on the top of the substrate 10 so as to be slidable in the vertical direction. . The elongated holes 42, 42 formed in the upper and lower parts of the second sliding plate 40, which are long in the vertical direction, each have a substrate 1.
By engaging the pins 43 , 43 erected at the base plate 10 , the second sliding plate 40 can be moved only in the vertical direction with respect to the substrate 10 .

The sliding door lock device constructed in this way 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 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 44, and the rotation axis of the pair of operating handles 1a and 1b provided indoors and outdoors is attached to this vertical stile 3. The holes 27, 27 of the pieces 11a, 11b are fitted into the holes 27, 27 of the pieces 11a, 11b. Among the handles 1a and 1b,
At the base of the handle 1b provided on the indoor side of the glass 44, there is an arm 6 with a roller 5 supported at the end, as in the case of the conventional handle 1 shown in FIG.
(omitted in Figure 3).

The sliding door shoji lock device constructed as described above and assembled to a sliding door shoji is such that by rotating one of the pair of handles 1a and 1b provided inside and outside the sliding door shoji, the other handle can also be moved. The sliding door shoji can be locked and unlocked from both indoors and outdoors by rotating in conjunction with each other.

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 28a and 28b that connect the parts b move upward. This causes the left piece 11a to rotate counterclockwise by the same angle. Connecting arms 28a, 28
When b rises, the end 30a of the pin 30 connecting both arms 28a and 28b moves to the upper end of the long hole 32 of the first sliding plate 31, and by further rotating the handle 1b, this second Pull up the first sliding plate 31. Here, the connecting arms 28a, 28b
In order to prevent the first sliding plate 31 from being pulled up immediately after the first sliding plate 31 is raised, the reason why the hole in which the end of the pin 30 engages is set as the elongated hole 32 is that the roller 5 and the receiver 9 are engaged with each other. The first and second sliding plates 3 are smaller than the angle at which the handle 1b must be rotated.
This is because the distance that 1,40 must be moved is small. Therefore, when locked, both sliding plates 3
If you want to increase the distance to move 1,40,
The hole formed in the first sliding plate 31 for engaging the end portion 30a is a simple circular hole as shown in FIG. 1 showing the link device of the present invention, and the connecting arms 28a,
This sliding plate 31 is made to be pulled up immediately after the lifting of the sliding plate 8b. Further, depending on the structure of the pulling mechanism provided at both the upper and lower ends of the sliding door shoji, the first and second sliding plates 31 and 40 may be integrated and both plates may be movable in the same direction. However, in either case, the shaft 30 connecting both connecting arms 28a, 28b
is movable only in the vertical direction of the substrate 10. As the first sliding plate 31 rises, the second sliding plate 40, which is connected to the upper end of this sliding plate 31 via the rotary plate 36, descends. Both first and second sliding plates 31,
Connecting rods 15 (fourth to fifth
Since the ends of the sliding door shoji 2 are connected, the pulling pieces 17 (see FIGS. 4 and 5) rotate at both the upper and lower ends of the sliding door shoji 2 as the above-mentioned sliding plates 31 and 40 move up and down. An action is performed to pull the sliding door shoji towards the indoor side.

However, in the lock device configured in this way, in order to enable locking and unlocking operations to be performed not only from inside the room but also from outside, a handle 1a is provided on the outside of the room. This causes the following problems. That is, when either handle 1a or 1b is rotated as shown by the solid line in FIG. 6 to release the lock, both handles 1a and 1b become almost parallel to the glass 44 of the sliding door shoji 2, and when The handle does not protrude from the sliding door shoji 2 either. However, in order to lock the sliding door shoji 2, when either the handle 1a or 1b is rotated to the state shown by the chain line in FIG. This results in an angle of about 100 degrees, and the tips of both handles 1a and 1b end up protruding from the side surface of the sliding door shoji 2. In the case of the handle 1b on the indoor side, there is a mullion 7 or a vertical frame near the handle 1b, so there is no particular danger even if the end of the handle 1b protrudes from the side of the sliding door shoji 2. In the case of the handle 1a on the outdoor side, it is dangerous because there is no member near the handle 1b that protrudes further toward the outdoor side than the end of the handle 1a.
Particularly in the case of a locking device used in a kindergarten or the like, there is a high risk of injury due to the child's body hitting the end of the handle 1a when the sliding door shoji is locked.

In view of the above-mentioned circumstances, the present invention is capable of interlocking the handles of a sliding door locking device that can be operated from both indoors and outdoors, and moreover, when locking, the handles on the outside side are set higher than the handles on the indoor side. To provide a link device for a locking device for a sliding door shoji, which can bring the handle on the outdoor side into a state parallel to the sliding door shoji by extra rotation.

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. 27 is formed.

Further, one end of a connecting arm 28a, 28b is pivotally attached to a portion of each piece 11a, 11b that is off the center of rotation by a shaft 29, respectively. Furthermore, both connecting arms 28
A shaft 30 is installed at the other end of the connecting arm 28b, one end of which is pivotally connected to the piece 11b to which the handle 1b on the indoor side is attached, and this shaft 30 is moved only in the vertical direction along the board 10. I am free to do so. on the other hand,
A long hole 45 long in the length direction of the connecting arm 28a is bored at the other end of the connecting arm 28a, one end of which is pivotally connected to the piece 11a to which the handle 1a on the outdoor side is attached. A shaft 30 implanted at the other end of the arm 28b is loosely fitted, and the handle 1a on the outdoor side is rotated at a certain angle (for example, 30°) independently from the handle 1b on the indoor side.
It is designed so that it can be rotated by a certain degree. In addition, in order to enable the handle 1a on the outdoor side to rotate by a certain angle independently of the handle 1b on the indoor side, a connection is required in which one end is pivoted to the piece 11a to which the handle 1a on the outdoor side is attached. It is sufficient to provide play by an elongated hole at the pivot point between the arm 28a and other members. Therefore, the long hole 45 is not provided in the pivot joint between the pair of connecting arms 28a and 28b, and the connecting arm 28a and the piece 11
An elongated hole for loosely engaging the shaft 29 may be provided at the pivot point with a. In this case, if the shaft 29 is fixed to the piece 11a side, the end of the connecting arm 28a is extended to form the elongated hole 46, and if the shaft 29 is fixed to the connecting arm 28a side, the piece A long hole 47 is formed in 11a. Further, at least between the handle 1a on the outdoor side and the base 4 for attaching the handle 1a to the side surface of the vertical frame 3, when the handle 1a moves toward the locked state and the released state, the handle 1a
A spring is provided so that the spring moves toward the end as far as it can move in that state. Further, the end of this shaft 30 protrudes from a long hole 45 and is bored into a sliding plate 31 slidably attached to the base plate 10 in order to drive a pulling mechanism provided at both the upper and lower ends of the sliding door shoji. It is inserted into the provided hole 32.

(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 27 of 11b, is rotated, one of the pieces 11a or 11b will rotate, and accordingly, one of the connecting arms 28a or 11b will rotate. 28b moves in the vertical direction in FIG.
The other connecting arm 28b connected by is also moved up and down. As a result of the other connecting arm 28b also moving up and down in this way, the other piece 11a or 11b to which the end of the connecting arm 28b is pivoted rotates in the opposite direction to the one piece 11a, and the hole in this piece 11a is rotated. The other handle, the shaft of which is inserted through 27, also rotates in the opposite direction.
At the same time, the end of the shaft 30 that engages the connecting arms 28a and 28b pushes and pulls the sliding plate 31, and moves the sliding plate 31 in the vertical direction in FIG. 1 along the board 10. let Therefore, if you place both handles separately for the indoor and outdoor sides of the sliding door shoji,
The lock device can be operated from either indoors or outdoors.

When opening and closing a sliding door shoji, rotating one of the handles will drive the pulling mechanism that moves the vertical stile toward the stile or the vertical stile, and at the same time move 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.

In this way, the pieces 11 are connected to each other by a link device consisting of a pair of connecting arms 28a and 28b.
When one of the pieces 11a or 11b is rotated by the handles 1a or 1b, the other piece 11b or 11a is rotated in the opposite direction. There is a difference between the case where the handle 1a is operated and the case where the handle 1a on the outdoor side is operated as described below.

That is, first, to explain the case where the handle 1a on the outdoor side is operated, when the handle 1a is rotated to lock the sliding door shoji and the piece 11a is rotated counterclockwise from the solid line state in FIG. As the piece 11a rotates, the left connecting arm 28a moves upward. At the beginning of the rise of the left connecting arm 28a, only the left connecting arm 28a is raised due to the engagement between the elongated hole 45 at the end of this connecting arm 28a and the shaft 30 at the end of the right connecting arm 28b. However, the right connecting arm 28b remains in the state shown in FIG. Therefore, the piece 11b on the indoor side and the handle 1b attached thereto do not rotate. When the handle 1a on the outdoor side and the piece 11a to which this handle is attached rotate to a certain extent (for example, about 30 degrees) and the shaft 30 moves to the lower end of the elongated hole 45, a force applied to the handle 1a on the outdoor side The operating force is the piece 11a, the connecting arm 2
8a, 28b, and the piece 11b, the signal is transmitted directly to the handle 1b on the indoor side. Therefore,
From this state, when the outdoor handle 1a is further rotated about 150 degrees, a total of about 180 degrees, the indoor handle 1b changes from the solid line state to the chain line state, as in the case of the conventional handle 1 shown in FIG. to the state
It rotates about 150 degrees to engage the roller 5 and the receiver 8. When this locking is completed, the handle 1a on the outside side is in a state parallel to the sliding door shoji. To release the lock from the outdoor side, rotate the handle 1a on the outdoor side in the opposite direction to the above case, but at the beginning of this rotation (until it is rotated about 30 degrees), the above-mentioned length is Due to the engagement between the hole 45 and the shaft 30, only the handle 1a on the outdoor side rotates, and the handle 1a on the indoor side does not rotate. If the handle 1a on the outdoor side is further rotated after the initial stage of rotation, the handle 1b on the indoor side rotates in line with the handle 1a on the outdoor side from the chain line position to the solid line position in FIG. is unlocked.

Next, the case where the lock device is operated by the handle 1b on the indoor side will be explained. Rotate the handle 1b to lock the sliding door shoji, and lock the piece 11b.
When the piece 11b is rotated clockwise from the solid line state in Fig. 1, the right connecting arm 2
8b moves upward, the left connecting arm 28a moves upward by the same amount, and the piece 11a to which the handle 1a on the outdoor side is attached rotates by the same angle as the piece 11b. If the handle 1b on the indoor side is rotated about 150 degrees from the solid line state to the chain line state in Fig. 6, the handle 1a on the outdoor side will also be rotated about 150 degrees in the same way, but the handle 1a on the outdoor side and this handle 1
Between the base body 4 for attaching a to the vertical stile 3,
Since a spring is provided to move the handle 1a to both end positions as far as it can move, the handle 1a on the outdoor side is rotated by the remaining 30 degrees due to the elasticity of this spring, and the handle 1a and the sliding door The shoji will be in a parallel state. Similarly, when unlocking a sliding door shoji from the indoor side, if the handle 1b on the indoor side is rotated by about 150 degrees, the handle 1a on the outdoor side will also be rotated by about 150 degrees.
The outdoor handle 1a is further rotated by about 30 degrees due to the elasticity of the spring. The long holes 46 and 47 are connected to the arm 2
The same applies to the case where it is provided at the pivot joint between the piece 8a and the piece 11a. In order to rotate the handle 1a to both end positions as far as possible, a spring mechanism provided between the handle 1a and the base body 4 has been widely known in the past, and is shown in FIGS. Since this is also incorporated in the conventional locking device for sliding door shoji shown in FIG.

c. Effects of the invention The link device of the locking device for sliding door shoji of the present invention is constructed and operates as described above, but since the sliding door shoji can be locked and unlocked from either indoors or outdoors, When installed at the entrance/exit of a balcony, the sliding door shoji can be locked even when someone is out on the balcony, thereby providing soundproofing inside and outside the room.Moreover, the end of the handle does not protrude when the door is locked. There is no risk of injury from parts of the body hitting this edge.

[Brief explanation of drawings]

Fig. 1 is a side view of the link device of the sliding door shoji lock device of the present invention, and Fig. 2 is a side view showing an embodiment of the sliding door shoji lock device in which this link device is to be incorporated, with the cover plate removed. Figure 3 is a cross-sectional plan view showing the vertical frame of a sliding door shoji equipped with this locking device, Figure 4 is a perspective view of a sliding door shoji equipped with a conventional locking device, and Figure 5 is a side view showing the upper and lower parts of this sliding door shoji. FIG. 6 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...combination mullion, 8...button Wall, 9... Receiver, 10... Board, 11, 11a,
11b...piece, 12...lower sliding plate, 13...rotating plate, 14...upper sliding plate, 15...connecting rod, 16...
...Axis, 17...Pull piece, 18...Top frame, 19...
... Projection, 20 ... Bottom frame, 21 ... Door roller rail, 2
2...Upper stile, 23...Lower stile, 24...Patzking,
27...hole, 28a, 28b...connecting arm, 29,
30...Shaft, 31...First sliding plate, 32, 33
...Long hole, 34...Pin, 35...Long hole, 36...
...rotating plate, 37... pin, 38... shaft, 39...
Pin, 40... Second sliding plate, 41, 42... Elongated hole, 43... Pin, 44... Glass, 45, 4
6,47...Long hole.

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. In a link device for a sliding door shoji lock device in which the other ends of a pair of connecting arms are pivotally connected to each other, a pivoting portion between a piece provided with one handle and one end of one connecting arm, and a connection of this one. By providing a sliding part between the shaft and the elongated hole in at least one of the pivot parts between the other end of the arm and the other end of the other connecting arm, one handle can be attached to the other handle. The handle can be rotated independently by a certain angle, and between this one handle and the base for attaching this handle to the vertical stile of the sliding door shoji, there is a handle that allows the handle to be moved toward the rotatable end. A link device for a locking device for sliding door shoji, which is equipped with a spring.