JP5652902B2 - Locking / unlocking device and opening / closing device - Google Patents

Description

  The present invention relates to a locking / unlocking device and an opening / closing device that achieves duplexing and multiplexing of locking with a simple structure without using a plurality of lock devices.

  Conventionally, in order to enhance the security function, two lock devices have been used to achieve double locking. However, since these two lock devices are configured as independent units, the units must be arranged apart from each other to some extent, and there are restrictions on the degree of freedom of arrangement, and dead and sunk from the lock device. There are disadvantages such as increased costs, such as a receiving seat on which the bolts fit into each other is required.

  In view of such a situation, Patent Document 1 and the like describe a main cylinder that can be rotated by inserting a key, a dead bolt that is projected and retracted toward the seat as the cylinder rotates, and an insertion of the key. The main cylinder is allowed to turn when the key is turned to the locking position, and when the key is turned to the unlocking position, the main cylinder is turned. There has been proposed a lock device including a restraining cylinder having a rotation restricting portion for permitting the rotation. This is the first time when the main cylinder and the restraining cylinder are in the locked position, the dead bolt is entered into the seat and locked, the restraint cylinder is turned to the unlocked position, and then the main cylinder is turned. The door can be opened by retracting the deadbolt from the seat, and the doors are not opened unless two keys are operated with one lock device. Is.

Japanese Patent No. 3927743

  However, in this patent document, when the rotation of the main cylinder is restrained by the restraining cylinder, the member projecting from the restraining cylinder is associated with the member projecting from the main cylinder in the rotational direction so as to restrict the rotation. It is configured. In other words, such a structure allows the restraint cylinder to be disposed at a position close to the main cylinder, but the projecting member moves even with a slight rotation of the main cylinder as it moves away from the main cylinder. It is limited to the arrangement that must be adjacent to the structure, and if the way of viewing is changed, the structure has a low degree of freedom of arrangement. In addition, it is not necessarily a simple structure, and assembly accuracy is also required, so it is considered that there is room for further cost reduction and the like. Furthermore, with such a structure, it is more difficult to realize further multiplexing such as triple locking.

  The present invention has been made paying attention to such a problem, and has a high degree of freedom with respect to the arrangement of a plurality of cylinders, and is capable of realizing double and multiple locking with a simple structure. Is intended to be newly provided together with an opening / closing device using this.

  In order to achieve this object, the present invention takes the following measures.

That is, the locking / unlocking device of the present invention is accompanied by a main cylinder that can be rotated between a locking position and an unlocking position by operating a key, and the main cylinder , and in conjunction with the rotation of the main cylinder, A main deadbolt that performs an advancing / retreating operation on the object to be locked between a first advancing / retreating position corresponding to the locking position and a second advancing / retreating position corresponding to the unlocking position; an auxiliary cylinder rotatable between said main dead bolt is a repositionable the moving direction of the in conjunction with the rotation of the auxiliary cylinder said main dead bolt in the loose area set in the gap between, said auxiliary cylinder with the rotation; and a said main dead bolt detachably and auxiliary dead bolt to advance and retreat direction of the auxiliary dead bolt is involved in the main dead bolt at one side of the play area The main cylinder Migihitsuji, the main dead bolt, the auxiliary cylinder and the auxiliary dead bolt and is assembled, the main cylinder is in the locked position and the main dead bolt is in a state in which the first retractable position, the auxiliary cylinder with combined relates the auxiliary dead bolt in the main dead bolt for restricting movement of the second reciprocating position of the main dead bolt when being operated in the restrained position, when the auxiliary cylinder is operated to the non-arresting position is by being configured to permit the operation to unlock position from the locked position of the main cylinder with the movement of releasing the involvement of the main dead bolt and the auxiliary dead bolt to a second reciprocating position of the main dead bolt It is characterized by.

According to this structure, the main cylinder side only needs associated so as to be interlocked in appropriate sites with respect to the main dead bolt, it is one of the auxiliary cylinder side, an auxiliary dead bolt to advance and retreat direction of the main dead bolt repositionable to be, and may satisfy a condition and a state to release the regulation state to regulate the operation of the main dead bolt through the position displacement of the auxiliary dead bolt, between the main cylinder and the auxiliary cylinder No particular restrictions are imposed on the distance or direction between the two .

For this reason, it is possible to adopt an arrangement in which both cylinders are extremely close to each other, an arrangement in which the cylinders are separated in the advance / retreat direction, and an arrangement in which they are separated in the advance / retreat direction and displaced in a direction perpendicular to the advance / retreat direction. It is possible to dramatically increase the degree of freedom in design.

Moreover, compared to the case of using two lock devices, it can be applied to a single locking / unlocking object, and an intensive and compact configuration is possible, and the structure and assembly are simpler than those of the patent literature. Therefore, further cost reduction can be pursued, and further multiplexing can be easily performed.

Further, the auxiliary deadbolt can be brought into contact with and separated from the auxiliary cylinder in the gap between the two deadbolts set at the position adjacent to the main deadbolt, and is engaged with the main deadbolt at one end of the gap between the two deadbolts. Thus, since these main cylinder, main deadbolt, auxiliary cylinder, and auxiliary deadbolt are assembled, a simpler structure can be realized.

In particular, in order to realize the configuration in which the cylinders are closely arranged and the convenience of handling at the same time, the main cylinder, the main dead bolt , the auxiliary cylinder, and the auxiliary dead bolt are incorporated into a common case as a unit. It is desirable.

When applying such a locking / unlocking device to an opening / closing device that opens and closes the latch through the operation of the handle, in order to avoid applying an excessive force from the handle to the latch, an operation force input from the handle to the latch is input. The clutch provided on the path is to be locked and unlocked, and the clutch is disengaged when the main deadbolt is in the first advance / retreat position, and the clutch is connected when the main deadbolt is moved to the second advance / retreat position. Is preferred.

Alternatively, when applying the locking / unlocking device as described above to an opening / closing device that opens and closes the latch through the operation of the handle, in order to avoid applying an excessive force from the handle to the latch, With the predetermined part of the input path as a subject to be locked and unlocked, the operation of the operation force input path is restricted when the main deadbolt is in the first advance / retreat position, and the restriction is released when the main deadbolt moves to the second advance / retreat position. It is desirable to configure as follows.

Furthermore, it is also suitable to apply to an opening / closing device such as storage furniture or joinery that uses the above-described locking / unlocking device and realizes locking / unlocking of the opening / closing member by projecting and retracting the main dead bolt with respect to the seat. Become.

  Since the present invention has the configuration described above, the degree of freedom with respect to the arrangement of a plurality of cylinders is high, and a simple structure does not cause an unlocked state unless all the cylinders are inserted and operated. It is possible to provide a locking / unlocking device that effectively realizes duplexing and multiplexing of locking, and an opening / closing device using the same.

The perspective view which shows the opening / closing apparatus to which the locking / unlocking apparatus provided with the structure used as the premise of this invention is applied. The perspective view which shows the door opening state of the opening / closing device. The figure which shows the relationship between the latch of the switchgear, and a latch receptacle. The disassembled perspective view which shows the structure of the handle periphery of the locking / unlocking apparatus . The perspective view which shows the structure and effect | action of the locking / unlocking apparatus. The figure which shows the structure of the clutch of the opening / closing device . Action | operation explanatory drawing of the same locking / unlocking apparatus. The figure which shows the example which gave different arrangement | positioning to the cylinder according to the locking / unlocking apparatus . The figure which shows the locking / unlocking apparatus which concerns on one Embodiment of this invention. Diagram for explaining a modification Katachirei of the present invention. The figure for demonstrating the other modification of this invention. The figure for demonstrating the modification other than the above of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 to 3 show a switchgear such as a cabinet having a configuration that is a premise of the present invention . In this opening / closing device, a pair of doors 2 are arranged in a housing 1 having a storage space so as to be able to open both sides via a hinge portion 3, and the door 2 is moored at a closed position of the housing 1 via a latch mechanism A. It is a thing.

  The latch mechanism A is formed with a latch receiver 11 at the top and bottom of the opening edge of the housing 1, and is provided with a pair of latches 21 in the vicinity of the edge 2 a on the side opposite to the suspension side of the door 2 that closes the housing 2. When the door 2 is closed, the latch 21 is engaged with the corresponding latch receiver 11 to moor the door 2 to the housing 1.

  Further, the handle 4 is movably attached to the face plate portion 22 of the door 2 from the edge 2a on the side opposite to the suspension side of the door 2, and the transmission shaft 5 that rotates the handle 4 and the upper and lower latches 21 about the axis is provided. The operating force applied to the handle 4 is transmitted to the latch 21, the engagement between the latch 21 and the latch receiver 11 is released, and the door 2 can be opened.

  As shown in FIG. 3, the latch receiver 11 is made of, for example, resin and has an opening 11 a, and the tip 21 a of the latch 21 having a hook shape or a sickle shape enters from the opening 11 a of the latch receiver 11. The relationship is engaged with the opening edge 11b. The latch 21 is accompanied by a kick spring 21b, and the tip 21a is always pressed elastically toward the direction engaging with the opening edge 11b.

And in said locking / unlocking apparatus D , as shown in FIG.4 and FIG.5 , the rotating shaft 40 of the handle 4 is separately provided in parallel with the position spaced apart from the transmission shaft 5, and rotation of the handle 4 is made into the clutch 6. As shown in FIG. Via the transmission shaft 5.

  More specifically, as shown in FIGS. 4 and 5, the handle 4 has an operation edge 41 for hooking a finger, and a recess 42 adjacent to the operation edge 41 and serving as a finger insertion space. It consists of a handle member B. And this handle member B is accommodated in handle case C with the transmission member 7 etc. which are mentioned later, and this handle case C is attached to the position which faces the opening 22a provided in the face plate 22 of the door 2. As shown in FIG. The rotary shaft 40 is set on the handle member B on the one end side near the edge 2a on the anti-hanging side of the door 2 by being displaced to the front end side in the thickness direction of the door 2, and the operation edge 41 is the anti-hanging side. It is set on the side far from the side edge 2a. The rotation direction of the handle 4 and the rotation direction of the door 2 are opposite to each other.

  The rotary shaft 40 is substantially on the face plate 22 of the door 2, the transmission shaft 5 is arranged at a position as close as possible to the back surface of the face plate 22 of the door 2, and the latch 21 is directly attached up and down, and the handle 4 is a rotary shaft. It operates between 40 and the transmission shaft 5.

As shown in FIGS. 4 and 5 and the like, the clutch 6 is configured to engage an engaging portion 61 set on the handle 4 side and an engaging portion 62 set on the transmission shaft 5 side on the rotation circumference. It is a thing. On the handle member B, the engaging portion 61 protrudes in a tongue-like shape in the direction from the rotation end b1 on the other end side toward the transmission shaft 5, while the transmission shaft 5 is made of resin. The transmission member 7 is externally fitted to the transmission shaft 5 so as to be rotatable integrally with the transmission shaft 5 and slidable in the axial direction, and the engaging portion 62 has a tongue-like shape in a direction from the outer periphery of the transmission member 7 toward the rotation shaft 40. It is made to protrude. The engaging portions 61 and 62 are overlapped in the front-rear direction so that the engaging portion 62 on the transmission shaft 5 side is positioned forward and the engaging portion 61 on the handle 4 side is positioned rearward. In this locking / unlocking device D , the transmission shaft 5 has a prismatic shape and is inserted into a square hole provided in the transmission member 7.

By the way, the said transmission member 7 is also a component of the locking / unlocking apparatus D for selectively locking the door 2 to a closed position. In addition to the transmission member 7, the locking / unlocking device D includes a main cylinder 71a and an auxiliary cylinder 71b provided in the face plate portion 22 at a position adjacent to the handle 4, and the cylinders 71a and 71b associated with the cylinders 71a and 71b. A dead bolt 72 that is an advance / retreat member that can move up and down when a predetermined operation is performed, and a tip 72a of the dead bolt 72 is engaged with an engaged portion 7a provided on the transmission member 7 to transmit the dead bolt 72. The transmission member 7 can be caused to follow the vertical movement of the dead bolt 72 without hindering the rotation of the member 7. That is, the locking / unlocking device D includes the unlocking position in which the transmission member 7 is engaged with the engaging portions 61 and 62 to transmit the operation of the handle 4 to the transmission shaft 5 as shown in FIG. As shown in FIG. 5 (b), even if the engaging portions 61 and 62 are dissociated and the handle 4 is operated, the locking position is selected so that the operation is not transmitted to the transmission shaft 5 only by idling. It can be locked and unlocked by moving it.

As described above, the opening / closing device transmits an operation input to the handle 4 to the latch 21 via the transmission shaft 5, and moves the latch 21 in the mooring position to the release position by moving the latch 21 to the release position. The door 2 is allowed to be opened, and the door 2 is locked in the closed position by the locking / unlocking device D regardless of the operation of the handle 4.

The two cylinders 71a constituting the facilities unlocking device, by 71b, is realized duplication of locking a single unlocking device D. This locking / unlocking device D has the clutch 6 as a locking target, and can be rotated between a locking position P1 shown in FIGS. 7A and 7B and an unlocking position P2 shown in FIG. The main cylinder 71a and the first advance / retreat position Q1 shown in FIGS. 7 (a) and 7 (b) and the second advance / retreat position shown in FIG. 7 (c) with respect to the object to be locked as the main cylinder 71a rotates. Between the dead bolt 72, which is an advancing / retreating member between Q2 and the restraint position R1 shown in FIG. 7 (a) and the unconstrained position R2 shown in FIGS. As shown in FIG. 4, the auxiliary cylinder 71b that can rotate and the restricting portion 73 that can change its position in the advancing / retreating direction of the dead bolt 72 in conjunction with the rotation of the auxiliary cylinder 71b are integrally formed in the case CC. It is an integrated unit. The case CC may be molded integrally with the handle case C or may be molded separately.

  As shown in FIG. 7, the main cylinder 71a has an eccentric shaft 74a provided at a position displaced from the center of rotation in a long hole 72b provided in the dead bolt 72 along a direction orthogonal to the advancing / retreating direction of the dead bolt 72. It is engaged so that there is as little play as possible in the forward / backward direction, and the position where the eccentric shaft 74a is eccentric downward as shown in FIGS. 7 (a) and 7 (b) is the locked position, and FIG. As shown in the figure, the position deviated upward is set as the unlocking position. On the other hand, the restricting portion 73 is an eccentric shaft 73a provided at a position displaced from the rotation center of the auxiliary cylinder 71b, and the dead bolt 72 is provided with a shaft passing window 72a that forms a floating region S for allowing the eccentric shaft 73a to move freely. Thus, the eccentric shaft 73a can be changed in position in the idle region S between the position shown in FIG. 7A and the position shown in FIG. At one end side of the floating area S, a relationship involving the dead bolt 72 is set as shown in FIG. That is, as shown in FIG. 7 (a), the position where the eccentric shaft 73a is eccentric downward is the restraining position with respect to the dead bolt 72, and the position where the eccentric shaft 73a is eccentric as shown in FIG. Is set as As for the dead bolt 72, as shown in FIGS. 7A and 7B, the advance / retreat position when the eccentric shaft 73a is eccentric downward is the first advance / retreat position Q1, and the advance / retreat when the eccentric shaft 73a is eccentric upward. The position is referred to as a second advance / retreat position Q2.

  When the auxiliary cylinder 71b is operated to the restraint position R1 in a state where the main cylinder 71a is in the locking position P1 shown in FIG. 7A and the dead bolt 72 is in the first advance / retreat position Q1, The restricting portion 73 is engaged with the shaft passing window 72a of the dead bolt 72 to restrict the upward movement of the dead bolt 72 to the second advance / retreat position Q2, and the auxiliary cylinder 71b is shown in FIG. When operated to the unconstrained position R2, the relationship between the restricting portion 73 and the dead bolt 72 is released to allow the dead bolt 72 to move upward to the second forward / backward position Q3. As shown in c), the dead bolt 72 can be moved to the second position Q2 through the operation of the main cylinder 71a. When the dead bolt 72 is in the first advance / retreat position Q1 shown in FIG. 5B, the clutch 6 is disengaged, and when the dead bolt 72 moves to the second advance / retreat position Q2 shown in FIG. 6 is connected.

  When the locking / unlocking device D is configured as described above, the main cylinder 71a side only needs to be associated with the dead bolt 72, which is an advancing / retreating member, so that it can be interlocked appropriately, and the one auxiliary cylinder 71b side is The position of the restricting portion 73 can be changed in the forward / backward direction of the dead bolt 72, and the condition for switching the state of restricting the operation of the dead bolt 72 and the state of releasing the restriction through the displacement of the restricting portion 73 is satisfied. It suffices that no special restriction is imposed on the distance or direction between the main cylinder 71a and the auxiliary cylinder 71b. Therefore, both cylinders 71a and 71b can be brought close to each other as shown in FIG. 8 (a) or separated in the forward and backward directions as shown in FIG. 8 (b), and further shown in FIG. Thus, it is possible to dispose in the direction perpendicular to the advancing / retreating direction while being separated in the advancing / retreating direction. Of course, a configuration in which the upper and lower relations of both cylinders 71a and 71b are interchanged in these drawings is also possible. Therefore, when applied to an opening / closing device having the clutch 6 that is the subject of locking and unlocking, the degree of freedom in design, such as optimizing the arrangement of both cylinders 71a and 71b in consideration of the positional relationship with the handle 4 and operability, etc. Can be dramatically improved. Moreover, it is sufficient to apply to one locking / unlocking object as compared to the case where two lock devices are employed, and an intensive and compact assembly is possible, and the structure and assembly are simplified compared to the configuration of the patent literature. Therefore, further cost reduction can be pursued.

In particular, in this locking / unlocking device D, the advance / retreat member is a dead bolt 72 attached to the main cylinder 71 a, and the position can be changed in conjunction with the auxiliary cylinder 71 b in the floating region S set by the restriction portion 73 on the dead bolt 72. The main cylinder 71a, the dead bolt 72, the auxiliary cylinder 71b, and the restricting portion 73 are assembled so as to engage with the dead bolt 72 at one end side of the floating region S. The dead cylinder 72 attached to the main cylinder 71a Thus, since it is sufficient to set the idle region S at an appropriate portion and assemble the restricting portion 73 and the auxiliary cylinder 71b, the assembly is further simplified.

  In particular, the restricting portion 73 is an eccentric shaft 73a provided at a position displaced from the rotation center of the auxiliary cylinder 71b, and the floating region S is formed inside the shaft passage window 72a provided in the dead bolt 72, Since it is only necessary to provide the dead bolt 72 with a notch or a through hole and insert the eccentric shaft 73a, the structure and assembly can be further simplified.

  Furthermore, since the main cylinder 71a, the dead bolt 72 as the advance / retreat member, the auxiliary cylinder 71b, and the restricting portion 73 are incorporated into a common case CC to be unitized, the handling integrity including both the cylinders 71a and 71b is ensured. In addition, it is possible to secure a degree of freedom in design, such as arranging the cylinders 71a and 71b closely in the case CC as needed, or displacing them in an appropriate direction.

The specific structure of each part is not limited to the shape condition described above.

In the above locking / unlocking device D, the restricting portion 73 associated with the auxiliary cylinder 71b is an eccentric shaft 73a, and the eccentric shaft 73a directly imposes a restriction on the dead bolt 72 that is an advance / retreat member associated with the main cylinder 71a. However, as shown in FIG. 9 , the locking / unlocking device D according to the embodiment of the present invention is configured such that the advancing / retreating member is a main dead bolt 72 attached to the main cylinder 71a, while the restricting portion is connected to the auxiliary cylinder. As the auxiliary dead bolt 75 that can be moved toward and away from the main dead bolt 72 in accordance with the rotation of the main dead bolt 71b, the main cylinder 71a and the main dead bolt 75 are arranged so that the idle region is the gap Δ between the dead bolts 72 and 75. bolts 72, the auxiliary cylinder 71b and the auxiliary dead bolt 75 is assembled. Therefore, in the state where the main cylinder 71a is in the locking position P and the 72 main dead bolt 72 as the advance / retreat member is in the first advance / retreat position Q1, the auxiliary cylinder 71b is shown in the restraint position shown in FIG. The auxiliary dead bolt 75 as a restricting portion is engaged with the main dead bolt 72 as the advance / retreat member to restrict the movement of the main dead bolt 72 to the second advance / retreat position Q2 and the auxiliary cylinder 71b. Is operated to the unconstrained position shown in FIG. 6B, the engagement of the dead bolts 72 and 75 is released, and the main dead bolt 72 is moved to the second advance / retreat position Q2 as shown in FIG. The operation from the locking position P1 to the unlocking position of the main cylinder 71a accompanied by the movement of the main cylinder 71a can be permitted.

  Further, as shown in FIG. 10, two auxiliary cylinders 71 b and 71 b ′ and regulating portions 73 and 73 ′ for regulating the main cylinder 71 a and the advancing / retreating member 72 linked thereto, and more than that. Therefore, it is possible to easily increase the security function without difficulty through further multiplexing.

Further, as shown in FIG. 11, the locking / unlocking device D is engaged with a predetermined portion of the operating force input path including the handle 4 from the handle 4 to the latch 21 (same as the opening / closing device set on the handle 4 side in the figure). When the dead bolt 72, which is an advance / retreat member, is at the first advance / retreat position T1 shown in FIG. When the operation force input path is restrained, the dead bolt 72 is disengaged from the engaging portion 61 when the operation force input path is moved to the second forward / backward position (T2) shown in FIG. The switchgear can be configured by being assembled so as to be released. According to such a mode of application, an advantage or the like that makes it easier to incorporate the locking / unlocking device D into the operating force input path can be obtained.

  In addition, various modifications can be made without departing from the spirit of the present invention, such as applying the locking / unlocking apparatus of the present invention to various opening / closing devices such as drawers and sliding doors in addition to the door.

For example, as shown in FIG. 12, a sliding door that is an opening / closing member that switches a locked / unlocked state by causing a dead bolt 72, which is an advancing / retracting member, to protrude and retract with respect to a seat 100 provided at an opening such as a doorway of a building or a room. 110, the dead bolt 72 is moved only when both the main cylinder 71a and the auxiliary cylinder 71b are operated in the same manner as in the above-described configuration, and the same operation from the locked state shown in FIG. It can be switched to the unlocked state shown in FIG. In this case as well, by configuring the locking and unlocking device according to the above configuration , the degree of freedom related to the arrangement of the plurality of cylinders 71a and 71b is high, and the cylinders 71a and 71b have a simple structure. It becomes possible to effectively realize the multiplexing of the lock that does not enter the unlocked state unless the lock is inserted and operated.

4 ... grip 6 ... clutch 21 ... latch 71a ... main cylinder 71b ... auxiliary cylinder 72 ... advance / retreat member (dead bolt , main dead bolt )
72a ... Shaft passage window 73 ... Restriction part 73a ... Eccentric shaft 75 ... Restriction part (auxiliary dead bolt)
CC ... case P1 ... locking position P2 ... unlocking position Q1 ... first advance / retreat position Q2 ... second advance / retreat position R1 ... restraint position R2 ... non-restraint position S ... idling area Δ ... idling area

Claims (5)

A main cylinder rotatable between a locked position and an unlocked position by the key operation, associated with said main cylinder, a first reciprocating position corresponding to the locked position of the main cylinder in conjunction with the rotation of the main cylinder And a main deadbolt that moves forward and backward with respect to the object to be unlocked between the second forward and backward positions corresponding to the unlocked position, an auxiliary cylinder that can be rotated between a restrained position and an unconstrained position by operating the lock, In the floating region set in the gap with the main deadbolt, the position of the main deadbolt can be changed in the forward / backward direction in conjunction with the rotation of the auxiliary cylinder. comprising an auxiliary dead bolt that is capable separable in direction, the auxiliary dead bolt floating region mainly cylinder as each other relates to the main dead bolt at one end side of the main Deddobo DOO, auxiliary cylinder and auxiliary deadbolt and is assembled in a state where the main cylinder is in the locked position and the main dead bolt is in the first reciprocating position, when the auxiliary cylinder is operated to restrained position thereby restricting the movement of the combined relationship of the auxiliary dead bolt in the main dead bolt to a second reciprocating position of the main dead bolt, said main dead and the auxiliary dead bolt when the auxiliary cylinder is operated to the non-arresting position A locking / unlocking device configured to allow the operation of the main cylinder from the locked position to the unlocked position with the movement of the main dead bolt to the second forward / backward position by releasing the engagement of the bolt . The locking / unlocking device according to claim 1, wherein the main cylinder, the main dead bolt , the auxiliary cylinder, and the auxiliary dead bolt are incorporated into a common case to form a unit. The locking / unlocking device according to claim 1 or 2, wherein the clutch provided in the operating force input path from the handle to the latch is to be locked and unlocked, and the clutch is disengaged when the main deadbolt is in the first advance / retreat position. And an opening / closing device configured to connect the clutch when moved to the second forward / backward position. 3. The locking / unlocking device according to claim 1 or 2 , wherein the operation force input path is actuated when the main deadbolt is in the first forward / backward position with the predetermined part of the operating force input path from the handle to the latch as the lock target. An opening / closing device configured to release the restraint when the hand is restrained and moved to the second forward / backward position. An opening / closing device using the locking / unlocking device according to claim 1 or 2 , wherein locking / unlocking of the opening / closing member is realized by projecting and retracting a main dead bolt with respect to the seat.

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