JP2009155965A - Opening portion device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening portion device with a locking mechanism to be operated by an opening/closing device, having simple construction for improving wind pressure resisting performance. <P>SOLUTION: An opening/closing arm 6 has one end pivotally connected to a frame body 3 and the other end slidable relative to a door end stile 4T, and a linkage arm 10 has one end pivotally connected to a sliding body 9 which slides relative to a vertical frame 3S and the other end connected via a pin 11 to the front end of an operation arm 7 which rocks around a center axis 7A with the opening/closing device 2. Latch members 12, 13 are provided on the door end stile 4T and on the sliding body 9, respectively. The opening/closing arm 6 has an opening/closing operation oblong hole 14 in which the pin 11 is relatively moved, and a locking operation oblong hole 15 to be linked to the opening/closing operation oblong hole 14 and bent to the indoor side so that the pin 11 is relatively moved further to the indoor side in the state of closing a sash 4. The pin 11 is moved along the opening/closing operation oblong hole 14 together with the operation arm 7 to open/close the sash 4, and the pin 11 is moved along the locking operation oblong hole 15 to the indoor side to establish a locking condition. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an opening device capable of opening and closing a shoji housed in a frame body in an indoor / outdoor direction by an opening / closing device operated from the indoor side, and more particularly, when the shoji is closed by the opening / closing device. Thus, the present invention relates to an opening device including a lock mechanism that is unlocked when the shoji is opened by the opening / closing device.

  As an opening device that can open and close a shoji placed inside the frame by an open / close device (operator) operated from the indoor side, such as a vertical sliding window, a horizontal sliding window, an open window or a protruding window. The frame and the shoji are connected by a connecting arm provided with a cam groove, and a contact attached to the tip of the lever part of the switchgear is inserted into the cam groove of the switch arm, and the lever part is shaken by the operating force of the switchgear. The one that opens and closes the shoji by swinging the connecting arm by movement (see, for example, Patent Document 1), the tip of the folding arm that is driven by the opening and closing device and the shoji are connected, and the operating force of the opening and closing device Swings (expands and retracts) the operating arm to open and close the shoji (see, for example, Patent Document 2), and the rotational movement of the linkage arm portion by the operating force of the opening and closing device follows the guide plate via the interlocking plate. Up and down The base plate fixed to the vertical frame is provided with a second slide hole and a base plate pin, and the second arm pin provided at the frame side end of the connecting arm is a second slide. Inserted into the hole and fixed to the actuating plate so as to be rotatable, the base plate pin is inserted into the third slide hole provided at the frame side end of the connecting arm, and the connecting arm is rotated by the sliding movement of the actuating plate. There are those that open and close the shoji (see, for example, Patent Document 3).

These opening devices are provided with a lock mechanism that is locked when the shoji is closed by the opening and closing device and unlocked when the shoji is opened by the opening and closing device, and the mechanism for operating the lock mechanism is referred to as an opening and closing device. Since it does not need to be provided separately, it is suitable for use in high places, such as for lighting and ventilation.
For example, the opening device of Patent Document 1 is provided with an incision in a bent portion in the upper part of a cam groove of a connecting arm, and the incision is configured by a first path at the bottom and a second path having a locking point at the top. And the locking mechanism which hold | maintains the contactor of the lever part tip rotated by an opening / closing unit (operator) at a latching point at the time of closing of a shoji.
Moreover, the opening part apparatus of patent document 2 moves to the connection part of the front-end | tip of a working arm and a shoji in the direction substantially orthogonal to the shoji opening-and-closing direction of the front-end | tip of a working arm at the time of a close of a shoji or before a closed position. A permissible movement allowing portion is provided, and a locking mechanism is provided for engaging an engaging portion provided on the distal end side of the operating arm with an engaging receiving portion provided on the frame when the shoji is closed.
Further, the opening device of Patent Document 3 is configured such that when the shoji is closed, a lock receiving portion (notch) provided on the connecting arm is fitted to a lock portion (pin) provided on the door toe to provide a lock provided on the connecting arm. A lock mechanism (hereinafter referred to as “connecting arm portion lock mechanism”) that engages an engagement portion (notch) with a lock engaged portion formed at the lower end portion of the base plate, and a lock provided on the top of the door rod And a lock mechanism (hereinafter referred to as “operation plate lock mechanism”) for fitting a portion (pin) to a lock receiving portion provided near the upper end of the operation plate.

Japanese Patent Laying-Open No. 2005-36398 (FIG. 1-5) JP 2003-184402 A (FIGS. 1-4) Japanese Unexamined Patent Publication No. 2007-1000044 (FIG. 1-6)

In the lock mechanism of Patent Document 1, only the contact (pin) at the tip of the lever is caught in the cam groove (long hole) of the connecting arm. In the lock mechanism of Patent Document 2, the taper ( Since only the engaging part (pin) is in contact with the (inclined) part, there is a risk that rattling may occur due to wind pressure fluctuations or repeated external swinging, or the lock mechanism may come off and become unlocked. It is difficult to maintain the reliability of the lock mechanism for a long time.
Therefore, the conventional opening devices such as Patent Document 1 and Patent Document 2 have a feature that the lock mechanism can be operated by operating the opening / closing device, but have sufficient performance against wind pressure resistance and crime prevention performance. It has not been obtained, and there is room for improvement from the viewpoint of improving these performances.

In addition, as described above, the lock mechanism of Patent Document 3 is configured so that the second arm pin provided at the frame side end of the connecting arm is inserted into the second slide hole of the base plate and is rotatably fixed to the operating plate. Since the base plate pin is inserted into the third slide hole provided at the frame side end of the arm, the connecting arm is rotated by the sliding movement of the operating plate to open and close the shoji. A backlash is likely to occur between the two arm pins and the second slide hole of the base plate and between the third slide hole of the connection arm and the base plate pin. Therefore, in order to prevent such backlash, a connection arm portion locking mechanism is provided. There is a need.
In addition, with such a connecting arm portion locking mechanism alone, there is a risk that rattling may occur due to wind pressure fluctuations or repeated external swinging, or the locking mechanism may come off and become unlocked, and the reliability of the locking mechanism Since it is difficult to maintain the property over a long period of time, it is necessary to further include an operating plate lock mechanism in order to improve the wind pressure resistance performance and the crime prevention performance.
Therefore, the conventional opening device as disclosed in Patent Document 3 is characterized in that the lock mechanism can be operated by operating the opening / closing device, but the configuration of the opening / closing mechanism and locking mechanism of the shoji is complicated, and the number of parts is reduced. The cost increases due to the large amount of time and assembly adjustment work.
Furthermore, since the connecting arm is formed with a notch, the connecting arm is easily deformed and the structure is complicated. Therefore, the reliability of the operation of the shoji opening / closing mechanism and the locking mechanism is lowered by long-term use. There is a case.

  Therefore, in view of the above-described situation, the present invention intends to solve the problem that wind pressure resistance performance and crime prevention performance can be achieved by a more practical simple configuration while the lock mechanism can be operated by operating the switchgear. It is an object to provide an opening device that can be improved and can maintain the reliability of the opening / closing mechanism and the locking mechanism of the shoji for a long period of time.

  In order to solve the above problems, an opening device according to the present invention opens and closes a shoji housed in a frame composed of left and right vertical frames and upper and lower horizontal frames in an indoor / outdoor direction by an open / close device operated from the indoor side. An opening device that is capable of swinging around a horizontal support shaft or a vertical support shaft with respect to the vertical frame or the horizontal frame, and having the other end supported with respect to the door toe of the shoji An open / close arm that is slidably connected in a vertical direction or a horizontal direction, an operation arm that swings around a swing center axis that is parallel to the support shaft by an operation force of the open / close device, and the door that faces the door rod A slide body supported by a guide member attached along the vertical frame or the horizontal frame and slidable in the vertical direction or the horizontal direction along the guide member, and one end of the slide body with respect to the horizontal support shaft or the vertical support. It is connected so that it can swing around the shaft. An interlock arm, a connecting shaft that connects the other end of the interlock arm and the tip of the operation arm so as to be swingable around a horizontal support shaft or a vertical support shaft, and a pair provided on the door toe and the slide body A substantially linear opening / closing operation elongated hole extending in the longitudinal direction so that the connecting shaft is inserted and moved relative to the intermediate portion of the opening / closing arm, and the shoji is closed In addition, a substantially arc-shaped locking operation long hole that is connected to the opening / closing operation long hole and is bent toward the indoor side is formed so that the connecting shaft moves relative to the indoor side. As the operating arm swings, the connecting shaft moves along the opening / closing operation slot so that the opening / closing arm swings to open and close the shoji, and the shoji is closed. Moves to the indoor side along the slot for locking operation. By doing so, the connecting arm swings and the slide body slides, and the pair of hooking members hooks into a locked state. In this locked state, the connecting shaft moves along the lock operation slot. By moving to the outdoor side, the locked state is released and the unlocked state is obtained.

  According to the opening device according to the present invention, the opening / closing device operated from the indoor side can open and close the shoji housed in the frame composed of the left and right vertical frames and the upper and lower horizontal frames in the indoor and outdoor directions. One end of which is supported so as to be swingable around a horizontal support shaft or a vertical support shaft with respect to the vertical or horizontal frame, and the other end is vertical or horizontal with respect to the door toe of the shoji. An open / close arm slidably connected to the open / close arm, an operating arm that swings around a swinging central axis parallel to the support shaft by an operating force of the open / close device, and the vertical frame or horizontal frame that faces the door rod Is supported by a guide member attached along the guide member, and is slidable vertically or horizontally along the guide member, and one end of the slide member swings around a horizontal support shaft or a vertical support shaft. An interlocking arm connected as possible, A connecting shaft that connects the other end of the interlocking arm and the tip of the operation arm so as to be swingable around a horizontal support shaft or a vertical support shaft, and a pair of latch members provided on the door toe and the slide body; A substantially linear opening / closing operation elongated hole extending in the longitudinal direction so that the connecting shaft is inserted and moved relative to the intermediate portion of the opening / closing arm, and the connecting shaft is further closed when the shoji is closed. Is formed with a substantially arc-shaped locking operation long hole that is connected to the opening / closing operation long hole and bent toward the indoor side so as to move relatively to the indoor side. With the movement, the connecting shaft moves along the long opening / closing operation hole, so that the opening / closing arm swings to open / close the shoji, and in a state where the shoji is closed, the connecting shaft is used for the locking operation. By moving indoors along the long hole The connecting arm swings and the slide body slides, and the pair of locking members are locked to be in a locked state. In this locked state, the connecting shaft moves to the outdoor side along the long slot for locking operation. By moving, the locked state is released and the unlocked state is entered, so that the opening and closing arm is directly driven by the swinging of the operating arm by the operating force of the opening and closing device (operator), and the operation to open and close the shoji is performed. As the operating arm swings, the interlocking arm pivoted to the tip of the operating arm swings, and the slide body pivoted to the other end of the interlocking arm slides along the guide member to lock and unlock. Since the lock is operated, the lock mechanism can also be operated by operating the opening / closing device. Therefore, since it is not necessary to provide a mechanism for operating the lock mechanism separately from the opening / closing device, it is suitable for use in high places, such as for lighting and ventilation.

Further, since the connecting shaft at the tip of the operation arm slides in the opening / closing operation long hole of the opening / closing arm, the opening / closing arm and the operation arm constitute a swing slider crank mechanism, and the slide body is formed by the swing of the operation arm and the interlocking arm. Therefore, the reciprocating slider crank mechanism is configured by the guide member, the slide body, the operation arm, and the interlocking arm. These slider crank mechanisms have a simple configuration with little operation error, and can easily increase strength and rigidity. Yes, it operates stably and reliably.
Therefore, the opening / closing mechanism driven by the operating arm is configured by the swing slider crank mechanism, and the locking mechanism that is also driven by the operating arm and latches the pair of locking members is configured by the reciprocating slider crank mechanism. Therefore, the operation of the opening / closing mechanism and the lock mechanism can be stable and reliable, and the reliability thereof can be maintained for a long time.
In addition, when the shoji is closed, the connecting shaft is further moved to the indoor side along the lock operation long hole to operate the reciprocating slider crank mechanism to lock the pair of hook members. Therefore, the lock mechanism can be operated more reliably, and the pair of hook members can further attract the frame and the shoji of the opening device while the shoji is closed to improve the sealing degree. Can do.
Furthermore, due to the structure of the opening / closing mechanism using the swing slider crank mechanism and the lock mechanism combining the reciprocating slider crank mechanism and a pair of latch members, the sealing degree is improved and the fluctuation of the wind pressure or from the outside Since there is no possibility of rattling or the unlocking mechanism coming off due to repeated swinging, it is possible to obtain sufficient wind pressure resistance and crime prevention performance.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments shown in the accompanying drawings, and includes all the embodiments that satisfy the requirements described in the claims. It is a waste. In the present specification, the front side in the direction from the indoor side toward the outdoor side is referred to as the front, the rear side is referred to as the rear, the left and right are referred to as the front, and a view seen from the left is referred to as a front view.

  1 to 6 are explanatory views of an opening device according to an embodiment of the present invention. FIG. 1 is a partial sectional front view, FIGS. 2 and 3 are transverse plan views, and FIG. 5 and 6 are front views showing the opening / closing mechanism and locking mechanism of the shoji, FIG. 1 shows a state in which the shoji is opened, FIG. 5 shows a state in which the shoji is closed, and FIG. 6 shows a locked state.

The opening device 1 shown in FIG. 1 to FIG. 3 is capable of opening the shoji 4 housed in the frame 3 to the front side (outside of the room) by the opening / closing device (operator) 2 operated from the indoor side and opened. The case where the shoji 4 can be closed so as to be accommodated in the frame 3 is shown as a vertical sliding window.
As shown in FIG. 1, the frame 3 is composed of an upper frame 3U and a lower frame 3L which are horizontal frames, and left and right vertical frames 3S and 3S, and the shoji 4 is an upper frame 4U and a lower frame 4L which are horizontal frames and left and right vertical frames. The upper and lower stays 5 are composed of the collars 4S, 4S and the two front and rear glasses 4G, 4G, etc., and are respectively attached between the upper frame 3U and the upper collar 4U and between the lower frame 3L and the lower collar 4L. The shoji 4 is supported by the frame 3 by 5.

  Further, the opening / closing device 2 is fixed to a vertical frame 3S facing the door toe 4T that is an opening / closing end of the shoji 4, and is driven by a motor 2B (see FIG. 2) to drive a rotary shaft 2A that is an input shaft ( For example, refer to arrow A in FIG. 1), or by rotating the sprocket 2D (see FIG. 3) by operating the chain 2C to drive the rotating shaft 2A (see, for example, arrow A in FIG. 1). A worm wheel 7C (see FIG. 4) that meshes with a worm (not shown) fixed coaxially with the rotary shaft 2A is moved relative to the worm, and the operation arm 7 is swung around a horizontal swing center shaft 7A. It is something to be made.

As shown in FIGS. 1 to 4, the shaft portion of the stepped pin 19, which is a horizontal support shaft, is connected to the vertical frame 3 </ b> S facing the through hole 6 </ b> A at one end (frame side end portion) of the opening / closing arm 6 and the door-end rod 4 </ b> T. By caulking the shaft end through the through hole 17A of the attached frame side bracket 17, one end of the open / close arm 6 is supported so as to be swingable around the stepped pin 19 with respect to the vertical frame 3S.
Further, since the horizontal pin 16 at the other end (edge side end) of the opening / closing arm 6 is inserted into a long hole 18 </ b> A extending up and down of the shoji side bracket 18 attached to the door toe 4 </ b> T of the shoji 4, the opening / closing arm The other end of 6 is connected to the door toe 4T of the shoji 4 so as to be slidable in the vertical direction (vertical direction).
The opening / closing arm 6 has a substantially linear opening / closing operation elongated hole 14 extending in the longitudinal direction and a substantially arc-shaped locking operation elongated hole bent inward in the room connected to the opening / closing operation elongated hole 14 at an intermediate portion thereof. 15 is formed.

Further, a guide member 8 is attached along the vertical frame 3S facing the door toe 4T, and the slide body 9 is supported by the guide member 8 so as to be slidable in the vertical direction.
Then, the shaft end of the stepped pin 20 which is a horizontal support shaft is caulked at the shaft end through the through hole 9A at the lower end portion of the slide body 9 and the through hole 10A at one end (frame side end portion) of the interlocking arm 10. One end of the interlocking arm 10 is connected to the slide body 9 so as to be swingable around the stepped pin 20.

Furthermore, a horizontal pin 11 as a connecting shaft is suspended from the other end (free end portion) of the interlocking arm 10, and the horizontal pin 11 is inserted into the through hole 7B at the distal end of the operation arm 7, The other end (free end portion) of the interlocking arm 10 and the tip of the operation arm 7 are coupled to be swingable around the horizontal pin 11.
The horizontal pin 11 is also inserted into the opening / closing operation long hole 14 of the opening / closing arm 6, and the mounting screw 21 is in a state where the side surface 11 A of the horizontal pin 11 is in sliding contact with the side wall forming the opening / closing operation long hole 14. Is screwed into the screw hole of the horizontal pin 11. In this way, the horizontal pin 11 that can be relatively moved along the opening / closing operation slot 14 of the opening / closing arm 6 has the side surface 11A of the locking operation slot 15 in the state in which the shoji 4 is closed (see FIG. 5). Can be further moved relative to the indoor side while being in sliding contact with the side wall.
Further, a latch pin 12 is attached to the door end fence 4T of the shoji 4, and a hook-like latch piece 13 is attached to the slide body 9 that slides in the vertical direction with respect to the vertical frame 3S. And the hook-shaped latching piece 13 comprises a pair of latching member.

  With the configuration as described above, by rotating the input shaft 2A of the opening / closing device 2 in the direction of arrow A in FIG. 1, for example, the operating arm 7 swings around the swing center shaft 7A, and the horizontal pin 11 opens and closes. Since it moves along the long hole 14, the shoji 4 can be closed by swinging the open / close arm 6 as shown by an arrow B in FIG. 1 (see the state in which the shoji 4 is closed in FIG. 5). When the input shaft 2A of the opening / closing device 2 is further rotated in the same direction, the opening / closing arm 6 does not swing but the operating arm 7 swings indoors, and the horizontal pin 11 extends along the lock operating slot 15. Therefore, the hook-shaped hooking piece 13 rises together with the slide body 9 via the interlocking arm 10 (see arrow C in FIG. 5), and the hook-shaped hooking piece 13 is hooked on the hooking pin 12. Stop (see the locked state in FIG. 6).

  Further, from this locked state, by rotating the input shaft 2A of the opening / closing device 2 in the direction opposite to the arrow A in FIGS. 1 and 5, the operating arm 7 swings to the outdoor side and the horizontal pin 11 is used for locking operation. In order to move to the outdoor side along the long hole 15, the hook-like hooking piece 13 is lowered together with the slide body 9 via the interlocking arm 10, and the hook-like hooking piece 13 is released from the hooking pin 12 and is unlocked. From this state, by further rotating the input shaft 2A of the opening / closing device 2 in the same direction, the horizontal pin 11 moves along the opening / closing operation long hole 14 as the operation arm 7 swings. The shoji 4 can be opened by swinging 6 in the direction opposite to the arrow B in FIG.

  As described above, the opening / closing arm 6 is directly driven by the swing of the operation arm 7 by the operating force of the opening / closing device 2 to perform the opening / closing operation of the shoji 4, and the operation arm 7 is moved along with the swing of the operation arm 7. Since the interlocking arm 10 pivoted to the tip of the arm swings and the slide body 9 pivoted to the other end of the interlocking arm 10 slides along the guide member 8, the locking / unlocking operation is performed. The lock mechanism can also be operated by operating the opening / closing device 2. Therefore, since it is not necessary to provide a mechanism for operating the lock mechanism separately from the opening / closing device, it is suitable for use in high places, such as for lighting and ventilation.

Further, since the horizontal pin 11 at the tip of the operation arm 7 slides inside the opening / closing operation long hole 14 of the opening / closing arm 6, the opening / closing arm 6 and the operation arm 7 constitute a swing slider crank mechanism. Since the slide body 9 slides by swinging the arm 10, the reciprocating slider crank mechanism is configured by the guide member 8, the slide body 9, the operation arm 7, and the interlocking arm 10, and these slider crank mechanisms operate with a simple configuration. There are few errors, it is easy to increase strength and rigidity, and it operates stably and reliably.
Therefore, the opening / closing mechanism driven by the operation arm 7 is constituted by the swing slider crank mechanism, and the lock mechanism which is also driven by the operation arm 7 to latch the pair of latch members 12 and 13 is the reciprocating slider crank mechanism. Therefore, the operations of the opening / closing mechanism and the locking mechanism are stable and reliable, and the reliability can be maintained for a long time.

In addition, when the shoji 4 is closed, the horizontal pin 11 is further moved indoors along the lock operation slot 15 to operate the reciprocating slider crank mechanism so that the pair of latch members 12 and 13 are moved. Since the locked state is obtained by the hooking, the operation of the lock mechanism is further ensured, and the frame of the opening device 1 is further closed by the pair of hooking members 12 and 13 with the shoji 4 closed. 3 and the shoji 4 can be attracted and the sealing degree can be improved.
Furthermore, due to the structure of the opening / closing mechanism using the swing slider crank mechanism and the lock mechanism combining the reciprocating slider crank mechanism and the pair of latch members 12 and 13, for example, in the locked state of FIG. Since there is no possibility that the opening device 1 will be rattled due to wind pressure fluctuations or repeated swinging from the outside, or the lock mechanism may come off and enter the unlocked state. Security performance can be obtained.

In the above description, the case where the pair of latching members is constituted by the latching pin 12 attached to the door toe cage 4T and the hook-like latching piece 13 attached to the slide body 9 has been described. A hook-like hooking piece may be attached to the hook 4T and a hooking pin may be attached to the slide body 9. A pair of hooks can be obtained by operating the reciprocating slider crank mechanism with the opening / closing device 2 with the shoji 4 closed. What is necessary is just a structure which a member latches and becomes a locked state.
In the above description, the case where the opening device 1 is a vertical sliding window has been described. However, the opening device 1 may be a horizontal sliding window, an opening window, a protruding window, or the like. Is a side sliding window, for example, the frame side end is vertically supported with respect to the horizontal frame (upper frame 3U or lower frame 3L) of the frame 3 so that the open / close arm 6 swings in the horizontal direction. It is connected so as to be swingable around the shaft, and the end of the heel side is connected slidably in the horizontal direction with respect to the door toe of the shoji 4, and the guide member 8 is provided along the horizontal frame facing the door toe. The slide body 9 can be slid in the horizontal direction along the attachment and guide member 8, and the operation arm 7 and the interlocking arm 10 can be swung around the vertical support shaft.

It is a fragmentary sectional front view of the opening part device concerning an embodiment of the invention, and shows the state where a shoji was opened. Similarly, it is a cross-sectional plan view. Similarly, it is a cross-sectional plan view. It is a disassembled perspective view of the principal part. It is a front view which shows the opening / closing mechanism and locking mechanism of a shoji, and has shown the state which closed the shoji. Similarly, it is a front view and shows a locked state.

Explanation of symbols

1 Opening device 2 Opening / closing device (operator)
2A Rotating shaft (input shaft)
2B Motor 2C Chain 2D Sprocket 3 Frame 3U Upper frame 3L Lower frame 3S Vertical frame 4 Shoji 4U Upper rod 4L Lower rod 4S Vertical rod 4T Door rod 4G Glass 5 Stay 6 Opening / closing arm 6A Through-hole 7 Operation arm 7A Swing center Shaft 7B Through-hole 7C Worm wheel 8 Guide member 9 Slide body 9A Through-hole 10 Interlocking arm 10A Through-hole 11 Pin (connection shaft)
11A Side surface 12 Latching pin (Hanging member)
13 Hook-shaped latching piece (hanging member)
14 Long hole for opening / closing 15 Long hole for locking 16 Pin 17 Frame side bracket 17A Through hole 18 Shoji side bracket 18A Long hole 19, 20 Pin with step (horizontal support shaft)
21 mounting screws

Claims (1)

An opening device that can open and close a shoji housed in a frame made up of left and right vertical frames and upper and lower horizontal frames in an indoor and outdoor direction by an opening and closing device operated from the indoor side,
One end is supported to be swingable around a horizontal or vertical support shaft with respect to the vertical or horizontal frame, and the other end is slidably connected to the door toe of the shoji in a vertical or horizontal direction. Open and close arm,
An operation arm that swings around a swing center axis parallel to the support shaft by an operating force of the opening and closing device;
A slide body that is supported by a guide member attached along the vertical frame or the horizontal frame facing the door-end fence, and is slidable vertically or horizontally along the guide member;
An interlocking arm having one end connected to the slide body so as to be swingable around a horizontal support shaft or a vertical support shaft;
A connecting shaft that connects the other end of the interlocking arm and the tip of the operation arm so as to be swingable around a horizontal support shaft or a vertical support shaft;
A pair of retaining members provided on the door toe and the slide body,
A substantially linear opening / closing operation elongated hole extending in the longitudinal direction so that the connecting shaft is inserted and relatively moved in an intermediate portion of the opening / closing arm, and the connecting shaft is further indoors with the shoji being closed. A substantially arc-shaped locking operation long hole that is connected to the opening / closing operation long hole and is bent toward the indoor side so as to move relative to
As the operating arm swings due to the operating force of the opening / closing device, the connecting shaft moves along the opening / closing operation slot so that the opening / closing arm swings and the shoji opens and closes. In a closed state, the connecting shaft moves to the indoor side along the long slot for locking operation, so that the connecting arm swings and the slide body slides, and the pair of hooking members are hooked. An opening device characterized by being in a locked state, and in this locked state, when the connecting shaft moves to the outdoor side along the long slot for locking operation, the locked state is released and the unlocked state is achieved.

Images