JP7078504B2 - Locking / unlocking device - Google Patents

Description

The present invention relates to a locking / unlocking device.

For example, it is preferable that the door of a hotel guest room can be opened quickly without the need for unlocking operation from the room in an emergency. An anti-panic lock is known as this type of locking / unlocking device (see, for example, Patent Documents 1 and 2). In the anti-panic lock, the inner and outer drive cams are connected to the indoor handle and the outdoor handle, respectively. These internal and external drive cams rotate independently. In the anti-panic type lock, a locking / unlocking means for restricting only the rotation of the drive cam on the outdoor side is provided. By the way, doors that can be attached to hotel rooms can be opened to the left or to the right. That is, there is left and right selfishness. Therefore, in the anti-panic lock, the indoor side surface and the outdoor side surface described above are interchanged depending on which side the door opens from, and a pair of drive cams incorporated in the lock case is selected inside or outside. A mechanism (inside / outside selection mechanism) for setting the target is provided.

As the inside / outside selection mechanism, for example, there is a mechanism in which two pressers, for example, male screws, etc. are provided on the front plate, and a pair of drive cams are selectively set inside and outside by the two presses. In some cases, the front plate is provided with two vertical levers on the left and right, and the link mechanism between the handle cam and the latch stopper is connected or disconnected to selectively set the inside and outside.

Japanese Unexamined Patent Publication No. 8-120984 Japanese Unexamined Patent Publication No. 2008-127904

However, if two pressers and two vertical levers are provided corresponding to a pair of drive cams, the number of parts increases and the mechanism becomes complicated.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a locking / unlocking device capable of switching an antipanic state on the front and back surfaces of an opening / closing body with a simple and simple mechanism.

Next, the means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The locking / unlocking device 11 according to claim 1 of the present invention includes an operating member 19 arranged on the front and back surfaces of the door 21 and an operating member 19.
The door 21 is provided with a front side mechanism 31 and a back side mechanism 33 that receive inputs from the operation members 19 of the front surface 27 and the back surface 29 of the door 21, and is interlocked with the front side mechanism 31 or the back side mechanism 33. , A lock mechanism 25 provided with an interlocking mechanism that makes the door 21 openable or non-openable.
A case 13 having a door tip portion 39 that has a built-in lock mechanism 25 and is exposed from the door 21.
The locking / unlocking device 11 is provided with the above.
A connecting swing member 15 that can swing around a swing shaft 55 provided in the case 13 and a connecting swing member 15.
The connecting rocking member 15 has a symmetrical position with respect to the swinging shaft 55 and extends from the door tip portion 39 toward the back so as to be substantially parallel to each other, and is interlocked by the swinging of the connecting rocking member 15. By being driven, each of the front side mechanism 31 or the back side mechanism 33 alternately advances or retracts, and the door 21 can be opened or opened by the front side mechanism 31 or the back side mechanism 33 and the interlocking mechanism. A pair of locking doors 17 that selectively switch the disabled state,
It is characterized by having.

In this locking / unlocking device 11, the connecting rocking member 15 provided in the case 13 swings around the rocking shaft 55. The swinging connecting swinging member 15 has a pair of locking rods 17 extending in parallel with each other from the door tip portion 39 toward the back of the case 13 with respect to the front side mechanism 31 or the back side mechanism 33, respectively. Alternately move forward or backward. The front side mechanism 31 or the back side mechanism 33 is allowed to operate or prevented from operating by moving forward or backward of each of the pair of locking rods 17. The operation of the front side mechanism 31 or the back side mechanism 33 is blocked by the locking rod 17, so that the input of the operating force from the operating member 19 to the interlocking mechanism is cut off. That is, the door 21 cannot be opened. On the other hand, the front side mechanism 31 or the back side mechanism 33 is allowed to operate by the locking rod 17, so that the operating force is input from the operating member 19 to the interlocking mechanism. That is, the door 21 can be opened. Therefore, the anti-panic setting state can be selectively switched by a simple mechanism in which the pair of locking rods 17 are alternately moved back and forth by the connecting rocking member 15 swinging.

The locking / unlocking device 11 according to claim 2 of the present invention is the locking / unlocking device according to claim 1.
The connecting rocking member 15 is provided with a swingable switching operation unit 59 centered on a rocking shaft 55 arranged on an axis substantially parallel to the back surface of the door tip portion 39 constituting the case 13. It is a feature.

In the locking / unlocking device 11, the connecting rocking member 15 is swingably supported by a swinging shaft 55 in a direction substantially parallel to, for example, a vertical swinging shaft 55, which is substantially parallel to the back surface of the door tip portion 39 of the case 13 provided on the door 21. Therefore, the connecting rocking member 15 can swing in the horizontal direction. In the connecting rocking member 15 that swings in the horizontal direction, the switching operation unit 59 moves in the horizontal direction. That is, the switching operation unit 59 can swing toward the front surface 27 or the back surface 29 of the door 21. The swinging direction of the connecting swinging member 15 can be made to coincide with the protruding direction of the locking rod 17 to the front side mechanism 31 or the back side mechanism 33. As a result, the front side mechanism 31 or the back side mechanism 33 on the side to which the switching operation unit 59 is directed is set so that the door 21 can be opened by the protrusion of the locking rod 17. Further, the swing shaft 55 can be swung in the horizontal direction, and the connecting swing member 15 can be swung in the vertical direction.

The locking / unlocking device 11 according to claim 3 of the present invention is the locking / unlocking device 11 according to claim 1.
Each of the pair of locking rods 17 is provided with an operation end portion 17a exposed through a through hole 40 formed in a door tip portion 39 constituting the case 13, and an operation of one of the locking rods 17 is provided. The tip 18 of the locking rod 17 moves forward in the back direction by pushing the end 17a, and the tip 18 of the other locking rod 17 retracts by the swing of the connecting rocking member 15. It is characterized by being driven.

In the locking / unlocking device 11, by pushing the operating end portion 17a of one of the locking stiles 17, the tip end portion 18 of the locking stile 17 is advanced in the depth direction. Further, due to this pushing force, the tip portion 18 of the other locking rod 17 retracts due to the swinging of the connecting rocking member 15. Then, the door 21 is selectively switched between the openable state and the non-openable state by advancing and retreating the locking rod 17.

The locking / unlocking device 11 according to claim 4 of the present invention is the locking / unlocking device 11 according to any one of claims 1 to 3.
The operating member 19 is rotatably arranged with respect to the door 21, and a rotational force is input to the front side mechanism 31 and the back side mechanism 33.
The front side mechanism 31 and the back side mechanism 33 include a cam plate 69 that is connected to the operation member 19 and transmits rotation.
The locking rod 17 is characterized in that the rotation of the cam plate 69 is allowed or prevented.

In the locking / unlocking device 11, a cam plate 69 that rotates integrally with the operating member 19 is fixed to each operating member 19 provided on the front and back surfaces of the door 21. Therefore, each of the operating members 19 on the front and back surfaces of the door 21 is allowed or prevented from rotating by the locking rod 17 via the cam plate 69.

The locking / unlocking device 11 according to claim 5 of the present invention is the locking / unlocking device 11 according to any one of claims 1 to 3.
The front side mechanism 31 and the back side mechanism 33 are provided with a link member that interlocks with or releases the interlocking mechanism, and the locking rod 17 is freely arranged and retracted with respect to the link member. The interlocking mechanism is interlocked or released by advancing or retreating the stop 17.

In the locking / unlocking device 11, each of the front side mechanism 31 and the back side mechanism 33 has a link member. The link member interlocks with or releases the interlocking mechanism between the front side mechanism 31 or the back side mechanism 33 by advancing or retreating the locking rod 17. That is, the interlocking of the front side mechanism 31 or the back side mechanism 33 and the interlocking mechanism is controlled by the indirect advancing / retreating operation of the locking rod 17 via the link member.

According to the locking / unlocking device according to the first aspect of the present invention, a pair of locking rods are connected by a connecting rocking member, and forward and backward are alternately operated so that the front and back sides can be reliably switched. , The state of anti-panic on the front and back of the door can be switched in an easy-to-understand manner with a simple and simple mechanism.

According to the locking / unlocking device according to claim 2, according to the second aspect of the present invention, the swing direction of the connecting swing member is set by the switching operation unit, and for example, by making the swing axis vertical, anti-panic on the front and back surfaces of the door. It is possible to relate the setting direction of the above to the direction of the switching operation unit of the connecting rocking member.

According to the locking / unlocking device according to claim 3, according to the third aspect of the present invention, the tip of the locking door is advanced in the inward direction by pushing the operating end of the locking door, and the other is engaged. The tip of the stop can be retracted, and by advancing and retracting the locking rod, it is possible to selectively switch between the openable state and the non-openable state of the door.

According to the locking / unlocking device according to claim 4, according to the present invention, each operating member on the front and back surfaces of the door is simply locked to a cam plate provided on each of the front side mechanism and the back side mechanism. Rotation can be controlled by the structure.

According to the locking / unlocking device according to claim 5, the locking rod controls the interlocking allowance or blocking of the interlocking mechanism via the link member, so that the strength of the locking rod can be set small.

It is an exploded perspective view of the locking / unlocking apparatus which concerns on embodiment of this invention. It is a perspective view which omitted a part of the locking / unlocking apparatus shown in FIG. It is an exploded perspective view of the bolt, the front side mechanism and the back side mechanism shown in FIG. It is a perspective view of the inside / outside selection mechanism shown in FIG. It is an exploded perspective view of the inside / outside selection mechanism shown in FIG. (A) is a plan view of the inside / outside selection mechanism in which the grip portion of the lever member is set on the back surface side, and (b) is a plan view of the inside / outside selection mechanism in which the grip portion of the lever member is set on the front surface side. FIG. 6 is a front view of the locking / unlocking device in the state of FIG. 6A. It is a front view of the locking / unlocking apparatus in the state of FIG. 6B. It is a front view of the locking / unlocking device unlocked by the locking device. It is a top view of the locking / unlocking device in which the knob portion of a lever member is set at an intermediate position. It is a front view of the lock / unlock device of another 1st Embodiment. It is a front view of the locking / unlocking apparatus of another 2nd Embodiment. It is a figure which showed the enlarged front view of the main part of the locking / unlocking apparatus of another 3rd Embodiment. It is a figure which showed the enlarged front view of the main part of the locking / unlocking apparatus of another 4th Embodiment. It is a front view of the lock / unlock device of another 5th embodiment. It is an enlarged front view of the main part of the lock / unlock device of another 6th embodiment. It is an enlarged front view of the main part of the locking / unlocking device of another 7th embodiment. It is an enlarged front view of the main part of the locking / unlocking device of another 8th embodiment.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view of the locking / unlocking device 11 according to the embodiment of the present invention.
The locking / unlocking device 11 according to the present embodiment has an operating member, an interlocking mechanism, a case 13, a lever member 15 as a connecting rocking member, and a locking rod 17 as main constituent members.

In the present embodiment, the operating member is a lever handle 19. The interlocking mechanism includes the bolt 23 as a main member. The operating member may be a knob.

The lever handle 19 is arranged on the front and back surfaces of the door 21. The lock mechanism 25 is provided inside the door 21 and receives inputs from the lever handles 19 on the front surface 27 and the back surface 29 of the door 21. The lock mechanism 25 includes a front side mechanism 31 arranged on the front surface 27 (outdoor surface) of the door 21, and a back side mechanism 33 arranged on the back surface 29 (indoor surface) of the door 21. In the present embodiment, the front side mechanism 31 includes the first handle cam 35 as a main member. The back side mechanism 33 includes a second handle cam 37 as a main member. The lock mechanism 25 is interlocked with the first handle cam 35 or the second handle cam 37, and includes a bolt 23 that makes the door 21 openable or non-openable.

The case 13 is formed of a rectangular parallelepiped box made of metal that is flat in the thickness direction of the door 21. The case 13 is attached to the door 21 so that the side surface on one long side coincides with the end of the door 21. The case 13 has a built-in lock mechanism 25 and is provided with a front plate 39 as a door tip portion exposed at the end of the door 21.

A square shaft 61 is inserted into the case 13 of each lever handle 19 attached to the front and back surfaces of the door 21. This insertion portion is covered with a decorative frame 43. A back plate 45 fixed to the case 13 is sandwiched between the front plate 39 and the case 13. The back plate 45 projects a grip portion 59, a bolt 23, and a trigger 47, which are switching operation portions of the lever member 15, which will be described later. The front plate 39 is provided with a bolt hole 49 for projecting the bolt 23 and a trigger hole 51 for projecting the trigger 47. The front plate 39 is fixed to the case 13 with the back plate 45 sandwiched by the front plate fixing screw 53.
In the present embodiment, the shape of the bolt 23 is shown to have a tapered surface at the tip, but this bolt 23 is called a dead locking latch bolt, and has the functions of a latch bolt and a dead bolt. It is a thing.
Here, the bolt 23, which is a member having a function of holding the door 21 in a closed state, is roughly divided into a prismatic or columnar shaft rod-shaped dead bolt and a latch bolt having a tapered surface at the tip. There is. The dead bolt enters the strike hole on the door frame side by protruding (advancing) from the door end in the closed door state, and by fitting into this strike hole, it is impossible to open the door, and by retreating, the strike hole Allows the door to be opened by exiting from. Further, the latch bolt itself retracts when the tapered surface abuts on the strike plate of the door frame when the door is closed, and then enters the strike hole, and keeps the door closed in this approached state. be.
The dead locking latch bolt of the present embodiment is a bolt 23 that enables the same operation as the above-mentioned latch bolt and also has two functions of performing the same operation as the above-mentioned dead bolt by the locking / unlocking operation when the door is closed. be. That is, when the door 21 is closed, after contacting the strike plate like the latch bolt, the door enters the strike hole, and at the same time as the door is closed, the door is further projected (advanced) to extend the length of entry into the strike hole. , Fits into the strike hole on the side without a tapered surface. As a result, the door is locked, and the door cannot be opened by operating the handle. It should be noted that the above-mentioned operation in which the bolt further protrudes at the same time as the door is closed is due to various means such as a mechanical control mechanism whose timing is the retracting operation by abutting on the strike plate of the above-mentioned trigger 47.

FIG. 2 is a perspective view in which a part of the locking / unlocking device 11 shown in FIG. 1 is omitted.
The lever member 15 is located near the back surface of the front plate constituting the case 13. The lever member 15 includes a swing shaft 55 arranged along an axis parallel to the back surface of the front plate. The lever member 15 has a knob portion 59 that penetrates a long hole 57 formed in a back plate 45 provided along the back surface of the front plate with a direction orthogonal to the axis of the swing shaft 55 as a major axis. The lever member 15 can swing around the swing shaft 55 along the length of the elongated hole 57. In the lever member 15, the knob portion 59 engages with the back surface of the front plate, and the swing is restricted.

In the locking / unlocking device 11 of the present embodiment, the swing shaft 55 has a vertical direction as an axial direction, and the lever member 15 is swingable in a horizontal direction.

The first handle cam 35 and the second handle cam 37 are each formed with a square hole 63 into which the square shaft portion 61 of the shaft portion 41 of the lever handle 19 is inserted. The first handle cam 35 and the second handle cam 37 can be independently rotated by the lever handles 19 on the front and back surfaces in which the square shaft portion 61 is inserted into the respective square holes 63. When the lever handle 19 on either the front or the back surface of the bolt 23 is rotated and the first handle cam 35 and the second handle cam 37 are rotated, the engaging plate 65 at the rear end is pressed and retracted into the case. That is, it is unlocked.

FIG. 3 is an exploded perspective view of the bolt 23, the front side mechanism 31 and the back side mechanism 33 shown in FIG.
A separation plate 67 is sandwiched between the first handle cam 35 and the second handle cam 37. The separation plate 67 prevents both square shaft portions 61 from penetrating to the other side. The lever handle 19 is rotatably arranged with respect to the door 21, and inputs rotational force to the first handle cam 35 and the second handle cam 37. The first handle cam 35 and the second handle cam 37 include a cam plate 69 connected to the lever handle 19 to transmit rotation.

The first handle cam 35 and the second handle cam 37 are respectively urged by the handle cam spring 71 in the rotation direction in which the cam plate 69 approaches the front plate 39. The rotation of the first handle cam 35 and the second handle cam 37 by the handle cam spring 71 is stopped by applying the stopper 73 to the contact pin 75 (see FIG. 7).

FIG. 4 is a perspective view of the inside / outside selection mechanism 77 shown in FIG.
The locking / unlocking device 11 has an inside / outside selection mechanism 77. The inside / outside selection mechanism 77 has a lever member 15, a swing shaft 55, a substrate 79, a guide shaft 81, a first slide plate 83, and a second slide plate 85 as main members, and has a first rotation. A blocking cam 87, a second rotation blocking cam 89, and a rotation blocking cam spring 91 are provided.

The first handle cam 35 and the second handle cam 37 include a link member that allows or prevents interlocking with the bolt 23. In the present embodiment, the link members are the first rotation blocking cam 87 and the second rotation blocking cam 89. The locking rod 17 is arranged so as to be able to advance and retreat with respect to the first rotation blocking cam 87 and the second rotation blocking cam 89. In the locking / unlocking device 11, the interlocking of the bolts 23 is permitted or blocked by the locking rod 17 advancing or retracting with respect to the first rotation blocking cam 87 and the second rotation blocking cam 89.

The lever member 15 has a knob portion 59. The first slide plate 83 and the second slide plate 85 each have a locking rod 17. The locking rod 17 allows or blocks the rotation of the cam plate 69. The first rotation blocking cam 87 and the second rotation blocking cam 89 each have a handle cam contact surface 93 and a locking rod contact shaft portion 95. In the first rotation blocking cam 87 and the second rotation blocking cam 89, the respective locking rod contact shaft portions 95 approach the front plate 39 (position where the handle cam contact surface 93 engages with the cam plate 69). The rotation is urged by the rotation blocking cam spring 91.

FIG. 5 is an exploded perspective view of the inside / outside selection mechanism 77 shown in FIG.
The lever member 15 is formed in the shape of a substantially triangular plate, and the knob portion 59 projects from the apex corner portion. On the bottom side, a pair of engaging shafts 97 that are separated from each other along the bottom are vertically installed. The lever member 15 is swingably supported by the substrate 79 by inserting the swing shaft 55 erected in the substrate 79 into the shaft hole 99 formed in the central portion. A guide shaft 81 is erected on the substrate 79 on the opposite side of the front plate 39 with the swing shaft 55 interposed therebetween.

The first slide plate 83 and the second slide plate 85 are formed in the shape of a long strip plate in a direction away from the front plate 39. The first slide plate 83 and the second slide plate 85 are provided with an engaging shaft connecting hole 101 into which the engaging shaft 97 is inserted at an end portion on the side close to the front plate 39. The first slide plate 83 and the second slide plate 85 are provided with a long slide guide hole 103 in a direction away from the front plate 39 on the opposite side of the front plate 39 with the engaging shaft connecting hole 101 interposed therebetween. .. The first slide plate 83 and the second slide plate 85 have a locking rod 17 formed in the vicinity of the slide guide hole 103 so as to stand perpendicular to the substrate 79 and extend in a direction away from the front plate 39. Has been done.

The locking rod 17 extends symmetrically with respect to the main body of the lever member 15 in a symmetrical position with respect to the swing shaft 55 toward the back from the front plate 39. By following the swing of the lever member 15, the locking rods 17 alternately project or retract with respect to the first handle cam 35 or the second handle cam 37. Each locking rod 17 selectively switches between an openable state and a non-openable state of the door 21 by the first handle cam 35 and the bolt 23, or the second handle cam 37 and the bolt 23.

The inside / outside selection mechanism 77 is assembled by stacking the first slide plate 83 and the second slide plate 85 on the substrate 79 in which the lever member 15 is supported by the swing shaft 55. The guide shaft 81 penetrates through the slide guide holes 103 of both the first slide plate 83 and the second slide plate 85 that are overlapped with each other. In the lever member 15, a pair of engaging shafts 97 are inserted into the engaging shaft connecting holes 101 of the first slide plate 83 and the second slide plate 85, respectively.

The lever handle 19 has a shaft portion 41 having a direction parallel to the front and back surfaces of the door 21 as a rotation direction and a direction orthogonal to the front and back surfaces as an axis. The shaft portion 41 is connected to the first handle cam 35 and the second handle cam 37. The locking rod 17 is arranged so as to be able to move forward and backward from a direction substantially orthogonal to the shaft portion 41, and prevents the shaft portion 41 from rotating when the locking rod 17 is retracted.

Next, the operation of the locking / unlocking device 11 will be described.
6 (a) is a plan view of the inside / outside selection mechanism 77 in which the grip portion 59 of the lever member 15 is set on the back surface side, and FIG. 6 (b) is the inside / outside selection mechanism 77 in which the grip portion 59 of the lever member 15 is set on the front surface side. FIG. 7 is a front view of the locking / unlocking device 11 in the state of FIG. 6A, and FIG. 8 is a front view of the locking / unlocking device 11 in the state of FIG. 6B.
The locking / unlocking device 11 has a second slide plate when the knob portion 59 of the inside / outside selection mechanism 77 is swung toward the back surface 29 (indoor surface) side of the door 21 as shown in FIG. 6 (a). The 85 retracts in the direction away from the front plate 39, and as shown in FIG. 7, the locking rod 17 rotates the second rotation blocking cam 89. The rotated second rotation blocking cam 89 releases the rotation restriction of the second handle cam 37. That is, the lever handle 19 on the back surface 29 is in the anti-panic setting state. On the other hand, the first slide plate 83 advances in the direction approaching the front plate 39. In the advanced first slide plate 83, the locking rod 17 does not rotate the first rotation blocking cam 87. As a result, as shown in FIG. 7, the first handle cam 35 is in a state where the rotation is blocked by the first rotation blocking cam 87 (non-anti-panic setting). That is, the lever handle 19 on the surface 27 side of the door 21 cannot be operated.

On the other hand, in the locking / unlocking device 11, when the knob portion 59 of the inside / outside selection mechanism 77 is swung toward the surface 27 (outdoor surface) side of the door 21, as shown in FIG. 6 (b), the first lock / unlock device 11. The slide plate 83 retracts in the direction away from the front plate 39, and as shown in FIG. 8, the locking door 17 rotates the first rotation blocking cam 87. The rotated first rotation blocking cam 87 releases the rotation restriction of the first handle cam 35. That is, the lever handle 19 on the surface 27 is in the anti-panic setting state. On the other hand, the second slide plate 85 advances in the direction approaching the front plate 39. In the second slide plate 85 that has advanced, the locking rod 17 does not rotate the second rotation blocking cam 89. As a result, as shown in FIG. 8, the second handle cam 37 is in a state where the rotation is blocked by the second rotation blocking cam 89 (non-anti-panic setting).

FIG. 9 is a front view of the locking / unlocking device 11 unlocked by the locking device.
The locking / unlocking device 11 in the present embodiment is provided with a mechanism portion that is interlocked with a cylinder lock or a thumb turn in the upper half of the case 13 to form a locking mechanism 25, and by operating the cylinder lock or the thumb turn. When the lock mechanism 25 is rotated, the gear cam 105 is rotated counterclockwise in FIG. As a result, the first rotation blocking cam 87 or the second rotation blocking cam 89 is swung clockwise, and the rotation restriction of the first handle cam 35 or the second handle cam 37 is released. That is, in the locking / unlocking device 11, the lever handle 19 on the cylinder lock side or the thumb turn side can be rotated.

Next, the operation of the above configuration will be described.
In the locking / unlocking device 11 according to the present embodiment, the grip portion 59 of the lever member 15 is arranged in the elongated hole 57 of the back plate 45. In the lever member 15, the knob portion 59 is swung in the long axis direction of the long hole 57. The lever member 15 swung via the knob portion 59 has a pair of locking rods 17 extending in parallel with each other from the front plate 39 toward the back, and the first handle cam 35 or the second handle cam. Each of them is alternately projected or retracted with respect to 37. The operation of the first handle cam 35 or the second handle cam 37 is permitted or prevented by each of the pair of locking rods 17 protruding or retracting. The operation of the first handle cam 35 or the second handle cam 37 is blocked by the locking rod 17, so that the input of the operating force from the lever handle 19 to the bolt 23 is cut off. That is, the door 21 cannot be opened. On the other hand, the first handle cam 35 or the second handle cam 37 is allowed to operate by the locking rod 17, so that the operating force is input from the lever handle 19 to the bolt 23. That is, the door 21 can be opened. Therefore, the anti-panic setting state can be selectively switched by a simple mechanism for alternately advancing and retreating the pair of locking rods 17 by swinging the lever member 15.

Then, in the locking / unlocking device 11, when the lever member 15 is swung, the grip portion 59 moves in the direction along the long axis of the elongated hole 57 formed in the back plate 45. The back plate 45 is covered with a front plate 39 attached to the case 13. In the lever member 15, the grip portion 59 engages with the back surface of the front plate by attaching the front plate 39 to the back plate 45. As a result, the lever member 15 is held in a state where the swing is restricted at the position set when the front plate 39 is attached. As a result, the anti-panic can be easily set and the set state can be reliably maintained.

Further, in the locking / unlocking device 11, the lever member 15 is swingably supported by the swing shaft 55 in the direction perpendicular to the case 13 provided on the door 21. Therefore, the lever member 15 swings in the horizontal direction. The lever member 15 swinging in the horizontal direction moves along the long axis of the elongated hole 57 in which the grip portion 59 is in the horizontal direction. That is, the knob portion 59 swings toward the front surface 27 or the back surface 29 of the door 21. The swing direction of the lever member 15 coincides with the protruding direction of the locking rod 17 to the first handle cam 35 or the second handle cam 37. As a result, the door 21 of the first handle cam 35 or the second handle cam 37 on the side to which the grip portion 59 is directed can be opened by the protrusion of the locking rod 17. As a result, the setting direction of the anti-panic on the front and back surfaces of the door 21 can be related to the direction of the grip portion 59 of the lever member 15, the operability at the time of setting is improved, and the confirmation of the set state becomes easy to understand.

Further, in the locking / unlocking device 11, a cam plate 69 that rotates integrally with the lever handle 19 is fixed to each lever handle 19 provided on the front and back surfaces of the door 21. Therefore, each lever handle 19 on the front and back surfaces of the door 21 is allowed or prevented from rotating by the locking rod 17 via the cam plate 69. As a result, each lever handle 19 on the front and back surfaces of the door 21 is rotated with a simple structure in which the locking rod 17 is locked to the cam plate 69 provided on each of the first handle cam 35 and the second handle cam 37. Can be controlled.

Further, in the locking / unlocking device 11, each of the pair of lever handles 19 has a shaft portion 41. Each locking rod 17 alternately advances and retreats toward the shaft portion 41. The first handle cam 35 and the second handle cam 37 connected to the respective shaft portions 41 are allowed to rotate by the advanced locking rod 17. The pair of lever handles 19 are allowed to rotate via the shaft portion 41 by the first handle cam 35 or the second handle cam 37 which is allowed to rotate. As a result, the rotation of the shaft portion 41 of the lever handle 19 can be reliably regulated by the locking rod 17 that moves forward and backward in the tangential direction of the circle centered on the shaft portion 41.

Further, in the locking / unlocking device 11, each of the first handle cam 35 and the second handle cam 37 has a link member (first rotation blocking cam 87 and second rotation blocking cam 89). The first rotation blocking cam 87 and the second rotation blocking cam 89 allow or prevent the first handle cam 35 or the second handle cam 37 from interlocking with the bolt 23 by advancing or retracting the locking rod 17. .. That is, the interlocking of the first handle cam 35 or the second handle cam 37 and the bolt 23 is controlled by the indirect advancing / retreating operation of the locking rod 17 via the first rotation blocking cam 87 and the second rotation blocking cam 89. Will be done. As a result, since the locking rod 17 controls the interlocking allowance or blocking of the bolt 23 via the first rotation blocking cam 87 and the second rotation blocking cam 89, the strength of the locking rod 17 can be set small.

FIG. 10 is a plan view of the locking / unlocking device 11 in which the knob portion 59 of the lever member 15 is set at an intermediate position.
The locking / unlocking device 11 includes three positions in which the swing range of the grip portion 59 is two positions, one end and the other end in the longitudinal direction of the elongated hole 57, and one position in the middle of these two positions. , The combination of the advancing / retreating positions of the pair of locking rods 17 is different at each of the three positions of the knob portion 59.

In this locking / unlocking device 11, when the locking rod 17 on the front and back surfaces of the door 21 to which the grip portion 59 is directed advances to the opposite side of the front plate 39, the first handle cam 35 or the second handle cam 37 And the bolt 23 are in an acceptable state. That is, the door 21 can be set in two ways of anti-panic on the front surface 27 or the back surface 29 to which the knob portion 59 is directed. Further, when the grip portion 59 is arranged at the center position along the long axis of the slotted hole 57, the pair of locking rods 17 are positioned at the same distance as the first handle cam 35 and the second handle cam 37. Become. As a result, the door 21 has two anti-panic settings, one on which one of the front and back surfaces is set as anti-panic, and one on which both front and back surfaces are anti-panic or non-anti-panic settings, for a total of three. It is possible to set the street. As a result, by arranging the knob portion 59 along the elongated hole 57, the anti-panic state on the front and back surfaces of the door 21 can be set in three ways.

Therefore, according to the locking / unlocking device 11 according to the present embodiment, the anti-panic state on the front and back surfaces of the door 21 can be easily switched by a simple and simple mechanism.

The present invention is not limited to the above embodiment. The technical ideas that can be modified by those skilled in the art based on the description of the present specification are included in the scope of seeking the protection of the present invention.

In particular, the internal / external selection mechanism 77 shown in FIG. 5 in the above embodiment of the present invention can be incorporated into various locking mechanisms in addition to the above-mentioned configuration of the locking mechanism 25, that is, a pair with the lever member 15. The locking rod 17 is arranged in the case 13, and the pair of locking rods 17 are alternately projected or retracted by the swinging operation of the lever member 15, and the unlockable state such as the unlocked state is performed. It is possible to selectively switch between the locked state and the non-openable state such as the locked state. Hereinafter, other embodiments 1 to 8 in which the internal / external selection mechanism 77 of the present invention is incorporated will be described by giving examples as various locking mechanisms. The parts equivalent to those in the above-described embodiment will be described with the same reference numerals without description.

FIG. 11 is a front view of the locking / unlocking device of another first embodiment.
For example, as shown in FIG. 11, the interlocking cam 201 is located at the tip of the cam plate 69 of the handle cam 35, and the interlocking cam 201 is in contact with the interlocking cam 203. The lock arm 205 is arranged on the upper surface of the bolt 23 so as to move forward and backward by swinging in the vertical direction. Above the lock arm 205, the inside / outside selection mechanism 77 of the present invention is arranged. A slider 207 is connected to the locking rod 17 of the inside / outside selection mechanism 77, and a V-shaped swing arm 209 is swingably provided at the lower end of the slider 207. By operating the lever member 15 of the inside / outside selection mechanism 77, the locking rod 17 protrudes or retracts, and the slider 207 connected to the locking rod 17 slides in the left-right direction in the drawing. By this slide movement, the swing arm 209 at the lower end becomes a position interposed between the lock arm 205 and the linked cam 203 (two-dot chain line in the figure) or a position retracting (solid line in the figure). When the swing arm 209 is moved in the protruding direction by the locking rod 17, the swing of the linked cam 203 is transmitted from the swing of the cam plate 69 and the interlocking cam 201 to swing, and the swing is transmitted to the lock arm 205. inform. As a result, the lock arm 205 is separated from the bolt 23 and does not interfere with the operation of the bolt 23. That is, the rotation of the handle cam 35 makes it possible to move the bolt 23 backward. In the other first embodiment, the swing arm 209, which is a part of the swing arm 209 and the link cam 201 and the link cam 203 arranged inside the lock mechanism 25, is selected inside and outside. Switching the operation by linking with the locking rod 17 of the mechanism 77 to separate it from the interlocking mechanism configured in a row or to put it in an intervening state, that is, by arranging or removing a member in the middle of transmitting the interlocking. Will be able to do.

FIG. 12 is a front view of the locking / unlocking device of another second embodiment.
Further, as shown in FIG. 12, the locking mechanism 25 is provided with a linking rod member 301 that is movable in the vertical direction over the top and bottom, and an interlocking pin 303 is provided at the upper end of the linking rod member 301. A rocking plate 305 is provided at the lower end. The interlocking pin 303 at the upper end is engaged with the locking rod 17 of the inside / outside selection mechanism 77, and specifically, is slidably interlocked on the hypotenuse portion 17A formed on the upper edge of the locking rod 17. The pin 303 is arranged. That is, the linking rod member 301 moves up and down in the case 13 by the interlocking pin 303 that slides on the hypotenuse portion 17A in conjunction with the horizontal movement of the locking rod 17. The swing plate 305 at the lower end is connected to the lower end of the linking rod member 301 by a shaft 307 at the substantially center, and the one end side 305a extending to the right in the figure has a substantially half-moon shape with a curved lower surface. The end side is a short push piece 305b. The one end side 305a is located on the upper part of the cam plate 69 and can be freely attached to and detached from the cam plate 69. Further, the pressing piece 305b comes into contact with the pin 311 provided at the base end portion of the stopper 309. The stopper 309 is provided so as to swing around the swing shaft 313 substantially at the center, and is arranged on the upper portion of the bolt 23 along the bolt 23. A coil spring 315 is attached to the swing shaft 313, and the coil spring 315 has an urging force for engaging the tip of the stopper 309 with the step portion 317 of the bolt 23.
In the locking / unlocking device configured in this way, the locking rod 17 is slid by the lever member 15 so that the linking rod member 301 is lowered (solid line in the figure) and raised (two-dot chain line in the figure). It is switched, whereby the position of the rocking plate 305 with respect to the cam plate 69 is switched. In the lowered state of the linking rod member 301 shown by the solid line in FIG. 12, the rocking plate 305 comes into contact with the cam plate 69. By the rotation of the cam plate 69, the rocking plate 305 swings around the shaft 307, and the push piece 305b causes the stopper 309 via the pin 311 to counteract the urging force of the spring 315 at the tip of the bolt 23. It is retracted from the portion 317 and swung to a position where it is not locked. From this, the bolt 23 can be retracted by the rotation of the cam plate 69. On the other hand, when the linking rod member 301 is raised by the lever member 15 via the locking rod 17 (two-dot chain line in the figure), the rocking plate 305 is separated from the cam plate 69. As a result, the tip of the stopper 309 is engaged with the step portion 317 of the bolt 23 by the urging force of the spring 315. That is, the protruding state of the bolt 23 is maintained, and the cam plate 69 cannot be rotated.
In another second embodiment, the linking rod member 301 disposed inside the locking mechanism 25 is configured to be able to move up and down at the hypotenuse portion 17A of the locking rod 17, and is provided on the linking rod member 301. It is possible to switch the arrangement position of the moving plate 305, whether or not the bolt 23 can be advanced or retreated by the switching operation of the stopper 309, and whether or not the cam plate 69 can be rotated. Similar to the other first embodiment described above, but the sliding movement direction of the locking rod 17 is changed to the vertical direction which is the orthogonal direction by the hypotenuse portion 17A formed in the locking rod 17, and the linking rod member 301 is used. The movement direction is changed, which enables selective switching.

FIG. 13 is a view showing an enlarged front view of a main part of the locking / unlocking device of another third embodiment.
Further, as shown in FIG. 13, in the locking mechanism, the inside / outside selection mechanism 77 is arranged below the bolt 23, the lever member 15 is located under the head of the bolt 23, and the tip of the locking rod 17 is the handle cam 35. It faces the neighborhood. In this locking / unlocking device, the retractor 401 is swung by the rotation of the handle cam 35, and the bolt 23 is moved forward and backward via the engaging plate 65 of the bolt 23 that engages with the retractor 401. The handle cam 35 is formed with an engaging recess 407 recessed in a direction orthogonal to the axial direction thereof. The locking rod 17 of the inside / outside selection mechanism 77 is provided with a connecting pin 415, and is slidable in the inclined hole 413 of the interlocking plate 403 arranged so as to be slidable in the vertical direction orthogonal to the locking rod 17. It is attached to. A pin 412 is provided so as to project from the interlocking plate 403, and is engaged with the interlocking piece 411 of the interlocking arm 409 disposed between the inside / outside selection mechanism 77 and the handle cam 35. The interlocking arm 409 has a cylindrical base, is rotatably provided on a shaft 417 provided on the case 13, and has an interlocking piece 411 and an interlocking arm 419 projecting from the outer surface. A lock 杆 405 is connected to the interlocking arm 419. The lock rod 405 is provided so as to be able to move forward and backward with respect to the handle cam 35, and is arranged so as to be inserted into or detached from the engaging recess 407 of the handle cam 35. In the locking / unlocking device configured in this way, the locking rod 17 is slid and moved by the operation of the lever member 15, and the vertical movement of the interlocking plate 403 interlocking with this slides the interlocking arm 409 via the interlocking piece 411. It is moved, and the interlocking arm 419 is swung by this rotation, and the lock 杆 405 is slid and moved. The lock 杆 405 fits into the engaging recess 407 of the handle cam 35 by advancing, thereby suppressing the rotation of the handle cam 35. Further, when the lock rod 405 is retracted, the restraint of the handle cam 35 is released, and the handle cam 35 becomes rotatable. That is, the rotation of the handle cam 35 causes the retractor 401 to swing, and the bolt 23 can be retracted.
In another third embodiment, by operating the inside / outside selection mechanism 77, the protruding or retracting movement of the locking rod 17 operates the interlocking plate 403, the interlocking arm 409, and the lock rod 405 to operate the lock rod 405. By fitting or retracting to the handle cam 35, the rotation of the handle cam 35 is directly restricted or deregulated. This makes it possible to invalidate the operation of the operating member such as the handle lever, enable normal operation, and switch between these operations.

FIG. 14 is a view showing an enlarged front view of a main part of the locking / unlocking device of another fourth embodiment.
Further, as shown in FIG. 14, as the configuration of the handle cam 35 similar to that of FIG. 13, in this example, the tip of the locking rod 17 is directly fitted or retracted into the engaging recess 501 of the handle cam 35. The configuration can be simplified as compared with the configuration of FIG. 13, and the locking rod 17 can switch whether the handle cam 35 can be operated or not, and the swing of the retractor 503 can be restricted or deregulated.

FIG. 15 is a front view showing the locking / unlocking device of another fifth embodiment.
Further, as shown in FIG. 15, the lock mechanism 25 is provided with an electromagnetic plunger 601, and the drive piece 605 connected to the tip of the operating piece 603 by the advancing / retreating operation of the operating rod 603 of the electromagnetic plunger 601 is shown in FIG. It is said to be movable in the middle, left and right directions. The drive piece 605 is provided with a fixed shaft 607 fixed to the case 13 as a guide. A driven piece 609 is swingably provided on the fixed shaft 607. In the driven piece 609, a U-shaped guide groove 611 is formed along the vertical direction, and a projecting piece 613 is extended at the lower end. The protrusion 613 engages with a movable pin 617 provided at the upper end of the L-shaped lock member 615. The lock member 615 is pivotally supported by a swing shaft 621 at the center and swings freely, and the lower end 619 is freely engaged with and detached from the tip of a cam plate 69 of a handle cam (not shown). The inside / outside selection mechanism 77 is arranged on the upper part of the electromagnetic plunger 601. The locking piece 17 in this example has an inclined side 17A formed on the upper edge of the tip. A lever 623 is arranged above the locking piece 17 in the vicinity of the locking piece 17. The base end of the lever 623 is pivotally supported by a shaft 625, and the tip end side is swingable. An elevating lever 629 is connected to the tip of the lever 623 via a connecting pin 627. Further, a pin 631 is provided in the middle of the lever 623, and is slidably in contact with the inclined side 17A of the locking rod 17. The elevating lever 629 is provided with a sliding pin 633, and the sliding pin 633 is slidably inserted into the guide groove 611 of the driven piece 609.
In the fifth embodiment, the locking piece 17 is slid freely by the operation of the lever member 15, whereby the lever 62 is swung. As shown in FIG. 15A, when the locking piece 17 advances and the tip of the lever 623 is in the lower position, the elevating lever 629 is lowered and thrusts due to the bending of the guide groove 611 of the driven piece 609. The piece 613 is in a substantially vertical position, and the lock member 615 is tilted so that the lock member 615 and the cam plate 69 are engaged with each other. That is, the swing of the cam plate 69 is regulated, and the rotation of the handle cam is regulated. For this reason, the door opening operation is disabled and the door cannot be opened. On the other hand, as shown in FIG. 15B, when the locking rod 17 is retracted, the lever 623 is swung and the elevating lever 629 is raised. Then, the sliding pin 633 is moved upward, and the driven piece 609 is swung. As a result, the lock member 615 is swung to release the engagement state with the cam plate 69. That is, the handle cam is rotatable. From this, the door can be opened and the door can be opened. In this way, it is possible to switch whether or not the cam plate 69 can be rotated by operating the lever member 15 of the inside / outside selection mechanism 77.

FIG. 16 is an enlarged front view of a main part of the locking / unlocking device of another sixth embodiment.
As shown in FIG. 16, the side plate 701 that supports the advancing / retreating slide of the bolt 23 is provided with an L-shaped engaging piece 703 whose tip is bent downward. The inside / outside selection mechanism 77 is arranged below the bolt 23. A swing lock piece 705 is arranged on the tip end side of the locking piece 17. The swing lock piece 705 is provided with a base end swingably provided at the tip of the cam plate 69 of the handle cam 35 via a pivot 707. The swing lock piece 705 has an upward hook-shaped tip and has an engaging recess 709, and the engaging recess 709 is arranged close to the tip of the locking piece 17 and engages with the locking piece 17. Be free. In the sixth embodiment, when the locking piece 17 is moved forward and backward by the operation of the lever member 15, the locking piece 17 is engaged with and disengaged from the swing lock piece 705. When the locking piece 17 protrudes and slides to the right in the figure, it engages with the rocking lock piece 705 as drawn by the alternate long and short dash line, and the tip of the rocking lock piece 705 is lowered. Then, the tip of the swing lock piece 705 does not engage with the engaging piece 703. On the other hand, in the state where the locking piece 17 is retracted, the tip of the rocking lock piece 705 is in the raised position, which causes the locking piece 17 to engage with the engaging piece 703. That is, the rotation of the handle cam 35 is restricted. The rotation of the handle cam 35 is to pull in a latch bolt (not shown) that is separate from the bolt 23, and enables the door to be opened. That is, when the front side mechanism and the back side mechanism are configured as in the above-described embodiment, the handle cam 35 can be rotated on one side and cannot be rotated on the other side. In this way, the door opening / closing operation can be switched by moving the locking piece 17 forward and backward.

FIG. 17 is an enlarged front view of a main part of the locking / unlocking device of another seventh embodiment.
As shown in FIG. 17, a substantially L-shaped engaging plate 801 is interlocked and connected to the handle cam 35, and an operating lever 803 is connected to the engaging plate 801. The tip 805 of the actuating lever 803 extends vertically upward and is locked to the base end of the bolt 23. That is, the handle cam 35 is rotated by an operation by an operating member such as a lever handle, and the operating lever 803 is swung via the engaging plate 801 that swings in conjunction with the rotation of the handle cam 35 to retract the bolt 23. It has become. The inside / outside selection mechanism 77 is arranged at the bottom of the bolt 23. In this embodiment, the pressing portion 807 is extended to the tip of the locking rod 17. A swing piece 809 is provided at the lower part of the inside / outside selection mechanism 77. The swing piece 809 is formed so that the base end is pivotally supported and the tip is swingable in the vertical direction, the lower surface is gently curved toward the tip, and the contact piece 811 is upward at the tip. It is rushed to. The contact piece 811 faces the pressing portion 807. A locking piece 813 is disposed between the rocking piece 809 and the upper edge of the engaging plate 801. The base of the locking piece 813 is pivotally supported in the middle portion of the operating lever 813, and the tip thereof is formed in an L shape so that the locking piece 813 can be engaged with and detached from the upper edge recess 815 of the engaging plate 801. Further, the upper surface of the locking piece 813 is freely contactable and detachable from the lower surface of the rocking piece 809.
In the locking / unlocking device configured in this way, when the locking rod 17 is advanced by the lever member 15 as shown in FIG. 17, the pressing portion 807 pushes the contact piece 811 and the tip side of the rocking piece 809. Swing downward. The rocking piece 809 swings in the direction of pushing down the locking piece 813 on the lower surface. The tip of the locking piece 813 engages with the recess 815 of the engaging plate 801 so that the operating lever 803 and the engaging plate 801 are in an interlocking connection state and can swing about the common shaft 817 at the same time. That is, the engagement plate 801 swings due to the rotation of the handle cam 35, the operating lever 803 swings, and the tip 805 pulls in the bolt 23. On the other hand, unless the locking rod 17 retracts (two-dot chain line in the figure) and the rocking piece 809 does not swing, the locking piece 813 does not swing downward and separates from the upper edge of the engaging plate 801. It becomes a position. Then, the engaging plate 801 that swings by the rotation of the handle cam 35 swings around the co-axis 817, but the working lever 803 does not swing because it is not connected to the working lever 803. As a result, the pulling operation of the bolt 23 is not performed. In this way, by advancing and retreating the locking rod 17, it is possible to switch whether the operating lever 813 and the engaging plate 801 are connected or not.

FIG. 18 is an enlarged plan view of a main part of the locking / unlocking device of another eighth embodiment.
As shown in FIG. 18, the connecting rocking member 15 is arranged inside the case 13, and the pair of locking rods 17 arranged in the case 13 has an operating end portion 17a at one end at the door end. It is configured to be exposed through a through hole 40 formed in the front plate 39 which is a portion. That is, in the other eighth embodiment, the inside / outside selection mechanism 77 in each of the above-described embodiments is arranged upside down. The connecting rocking member 15 is located at the back of the case 13, has a configuration in which the center is pivotally supported, and the axis is in the vertical direction. The tip 18 at the other end of the pair of locking rods 17 is interlocked and connected to both ends of the connecting rocking member 15. The pair of locking rods 17 are guided by a guide shaft 81 erected on the substrate 79, and are arranged so as to sandwich the swing shaft 55 that supports the connecting swing member 15. Then, the edge portion of the connecting rocking member 15 and the tip portion 18 of the locking rod 17 are in contact with the contact shaft portion 96. The contact shaft portion 96 is provided on a member (not shown) similar to the first rotation blocking cam 87 and the second rotation blocking cam 89 described above, and the respective contact shaft portions 96 approach the front plate 39. It may be constantly urged by a cam spring (not shown).
In the locking / unlocking device configured in this way, for example, as shown in FIG. 18A, the operation end portion 17a on the upper side in the drawing, which is one of the locking rods 17, is pushed and pushed into the through hole 40. By operating, the tip portion 18 of the locking rod 17 advances toward the back of the case 13, and the connecting rocking member 15 connected to the tip portion 18 is swung. The connecting swing member 15 swings around the swing shaft 55, and the swing causes the tip 18 of the other locking rod 17 to retract. The other locking rod 17 has an operating end portion 17a protruding from the through hole 40. Similarly, as shown in FIG. 18B, by pushing the other locking rod 17, the operating end portion 17a of the one locking rod 17 is driven so as to protrude from the through hole 40. As a result, the contact shaft portions 96 are interlocked, and the alternating movement of the contact shaft portions 96 activates a cam, a link member, etc. (not shown), and the door 21 can be opened as in each of the above-described embodiments. And the non-openable state will be selectively switched.
The pair of locking rods 17 are described as being operated so as to push the operation end portion 17a into the case 13, but the operation of pulling out the operation end portion 17a also operates in the same manner, that is, The pair of locking rods 17 are interlocked and connected by the connecting rocking member 15, so that if one tip portion 18 advances in the case 13, the other tip portion 18 retracts. The pair of locking rods 17 alternately operate on the connecting rocking member 15 to form the internal / external selection mechanism 77, and the rocking causes the pair of locking rods 17 to alternately project or retract, respectively, to solve the problem. It is possible to selectively switch between an unlockable state such as a locked state and an unopenable state such as a locked state.

From the above description, the present specification includes the following matters.
(1) Operating members arranged on the front and back of the door and
The door is provided with a first handle cam and a second handle cam provided on the door and receiving inputs from the operating members on the front surface and the back surface of the door, and is interlocked with the first handle cam or the second handle cam. A locking mechanism equipped with an advancing / retractable bolt that realizes the unlocked or locked state of the door,
It is a locking / unlocking device equipped with
A case provided on the door, the lock mechanism is built in, and a front plate exposed on the end surface of the door is provided.
A swing shaft located near the back surface of the front plate constituting the case and arranged along an axis parallel to and perpendicular to the back surface of the front plate is provided, and the swing shaft is provided on the back plate provided along the back surface of the front plate. It has an operation rod having a tip penetrating a long hole formed with a horizontal direction orthogonal to the axis of the above, and can swing horizontally along the length of the long hole around the swing axis. Lever member and
It is composed of a pair of lever members that are symmetrically positioned around the swing axis and are swingably interlocked and connected by an axis parallel to the axis of the swing axis, from the front plate to the back of the case. Extends parallel to each other in the direction, one protruding or retracting with respect to the first handle cam and the other protruding or retracting with respect to the second handle cam, blocking the operation of the first handle cam or the second handle cam in the protruding state. Then, the operation of the first handle cam or the second handle cam is allowed in the retracted state, and the interlocking connection between the first handle cam and the bolt or the second handle cam and the bolt is selectively switched, and the door is A locking lever that keeps the door locked on one of the surfaces and enables interlocking operation by the operating member on the other surface.
A locking / unlocking device characterized by being equipped with.
According to this locking / unlocking device, the antipanic state on the front and back surfaces of the door can be easily switched by a simple and simple mechanism by the same operation as the locking / unlocking device according to the above-described embodiment.

11 ... Locking / unlocking device 13 ... Case 15 ... Connecting rocking member (lever member)
17 ... Locking rod 17a ... Operation end 18 ... Tip 19 ... Operation member (lever handle)
21 ... Door 23 ... Interlocking mechanism (bolt)
25 ... Lock mechanism 27 ... Front side 29 ... Back side 31 ... Front side mechanism 33 ... Back side mechanism 35 ... 1st handle cam 37 ... 2nd handle cam 39 ... Door tip (front plate)
41 ... Shaft part 45 ... Back plate 55 ... Swinging shaft 57 ... Long hole 59 ... Switching operation part (knob part)
69 ... Cam plate 87 ... Link member (1st rotation blocking cam)
89 ... Link member (second rotation blocking cam)

Claims (5)

The operation members arranged on the front and back of the door and
The door is provided with a front-side mechanism and a back-side mechanism that receive inputs from the operation members on the front and back surfaces of the door, and is interlocked with the front-side mechanism or the back-side mechanism to open or open the door. A lock mechanism with an interlocking mechanism that makes it impossible,
A case with a built-in lock mechanism and a door tip exposed from the door, and a case.
It is a locking / unlocking device equipped with
A connecting swing member that can swing around the swing shaft provided in the case,
The connecting rocking member has a symmetrical position with respect to the swinging axis and extends from the door tip toward the back so as to be substantially parallel to each other, and is interlocked and driven by the swinging of the connecting rocking member. A pair that alternately advances or retracts with respect to the front side mechanism or the back side mechanism, and selectively switches between the openable state and the non-openable state of the door by the front side mechanism or the back side mechanism and the interlocking mechanism. With a locking door,
A locking / unlocking device characterized by being equipped with. The claim is characterized in that the connecting rocking member is provided with a swingable switching operation unit centered on a rocking shaft arranged by an axis substantially parallel to the back surface of the door tip portion constituting the case. 1. The locking / unlocking device according to 1. Each of the pair of locking rods is provided with an operating end portion that is exposed through a through hole formed in a door tip portion constituting the case, and is used to push the operating end portion of one of the locking rods. The first aspect of the first aspect of the present invention is characterized in that the tip end portion of the locking rod is moved forward in the back direction and the tip end portion of the other locking rod is retracted by the swinging of the connecting rocking member. Locking and unlocking device. The operating member is rotatably arranged with respect to the door, and a rotational force is input to the front side mechanism and the back side mechanism.
The front side mechanism and the back side mechanism include a cam plate that is connected to the operation member and transmits rotation.
The locking / unlocking device according to any one of claims 1 to 3, wherein the locking rod allows or prevents rotation of the cam plate. The front-side mechanism and the back-side mechanism include a link member that interlocks with or releases the interlocking mechanism, and the locking rod is disposed with respect to the link member so as to be able to advance and retreat. The locking / unlocking device according to any one of claims 1 to 3, wherein the interlocking mechanism is interlocked or released by advancing or retreating.

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