JP2012219562A - Locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device capable of easily opening a door in emergency and preventing the door from being unlocked by mischief in an anti-panic type lock.SOLUTION: A locking device includes: a lever handle 13 in which a lever shaft 21 vertically projects to be freely rotatable from a door surface 19 and a lever grip part 31 perpendicular to the lever shaft 21 rotates so as to enable a door 23 to be opened; a frame-like regulation member 15 which is inserted from the outside so as to surround a grip tip 35 of the lever grip part 31 and prevents a rotational operation of the lever grip part 31; and a frame member supporting body 17 which has a support shaft 37 in a direction perpendicular to the lever shaft 21 and is fixed to the door 23 so as to freely rotatably support one side part of the frame-like regulation member 15 around the support shaft 37.

Description

  The present invention relates to a lock device that regulates the operation of an operation member provided for opening and closing a door.

  A lever handle, which is an operation member for opening and closing provided on the door, is interlocked and connected to a lock device built in the door or provided in an exposed state on the door surface. The lever handle includes a shaft portion connected to the mechanism portion of the lock device and a handle portion extending in a direction orthogonal to the shaft portion, and by holding and holding this handle portion, the mechanism in the lock device is operated. The latch bolts are moved forward and backward by interlocking the parts. This locking device is generally operated from the outdoor side of the door, for example, by a lock key, and from the indoor side, the dead bolt is moved forward and backward by an operation by a thumb turn. In the operation of unlocking and opening the door, there is one having a mechanism (so-called anti-panic mechanism) in which unlocking is performed by swinging only the lever handle without using a thumb turn or the like. This unlocking mechanism using the lever handle is effective when you want to open the door immediately in an emergency, eliminating the need for thumb turn and other operations, and unlocking and opening the door urgently by operating only the lever handle. Is possible. Also, there is a structure in which the thumb turn is not provided because the thumb turn is not used.

  Such an emergency unlocking mechanism for the lever handle can be unlocked by forcibly swinging the lever handle even in the locked state. There is a risk of getting out of the door and entering a dangerous place alone. In order to prevent such a risk, for example, a locking device is provided at a high position where a small child cannot reach, or the swing of the lever handle is restricted. As a structure that regulates the swing of the lever handle, a pressing plate that engages with the shaft part of the door handle from the handle mounting seat and prevents the door handle from rotating is provided via a hinge. Covering the periphery of the operating lever with a structure that prevents the door handle from rotating (Patent Document 1 below) and a detachable, generally U-shaped plate, and attached a box-shaped lever housing, There is one that covers and restricts swinging (Patent Document 2 below).

JP-A-6-336865 Japanese Utility Model Publication No. 3-28278

  However, all of the above-described conventional structures for restricting the swing of the lever handle are detachable structures, and are attached to the lever handle when necessary, and the lever handle is continuously restricted. When not in use, the structure removed from the lever handle must be stored somewhere. Further, in each of the above patent documents, a key is essential to regulate and maintain the lever handle, and although it improves safety in the sense of a double lock, it requires storage of the key, This is also complicated. In particular, when the emergency door is opened as described above, the conventional structure may not be able to be opened due to its complexity, and it is possible to easily open the door in an emergency. Therefore, there has been a demand for a lever handle swing restricting structure having a function capable of providing sufficient safety.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a lock that can easily open a door in an emergency and can prevent unlocking due to mischief in an anti-panic lock. To provide an apparatus.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
In the locking device according to the first aspect of the present invention, the lever shaft 21 is rotatable from the door surface 19 so as to protrude vertically, and the lever handle portion 31 perpendicular to the lever shaft 21 is rotated so that the door 23 can be unlocked. Lever handle 13 to
A regulating member 16 that is located at least in the vicinity of the edge of the lever handle portion 31 on the rotation direction side of the handle tip portion 35 of the lever handle portion 31 and prevents the lever handle portion 31 from rotating;
A support body 20 having a support shaft 37 in a direction perpendicular to the lever shaft 21 and fixed to the door 23 and rotatably supporting the base end portion 18 of the regulating member 16 by the support shaft 37;
It is characterized by comprising.

  In this locking device, when the restricting member 16 is positioned in the vicinity of the edge of the handle distal end portion 35 of the lever handle portion 31 on the rotational direction side, when the lever handle portion 31 is rotated, the lever handle portion 31 is moved to the restricting member 16. The operation of the lever handle 13 is restricted. In order to enable the operation of the lever handle 13, it is necessary to move the regulating member 16 so as to be out of the rotation region of the lever handle portion 31 so as not to interfere with the lever handle portion 31.

The locking device according to claim 2 of the present invention is the locking device according to claim 1,
The distal end 40 of the restricting member 16 is provided with a gate member 55 that can be swung only in the direction when the lever handle 31 is rotated and then returned to the original position. .

  In this locking device, a gate member 55 is provided at the distal end 40 of the regulating member 16 that serves as a portion that prevents the lever handle 31 from rotating. The gate member 55 restricts the movement of the lever handle 31 in the operation direction, and allows the movement of the lever handle 31 in the direction of returning from the position after the rotation operation to the original position.

In the locking device according to claim 3 of the present invention, the lever shaft 21 is rotatable from the door surface 19 so as to protrude vertically, and the lever handle portion 31 perpendicular to the lever shaft 21 is rotated so that the door 23 can be unlocked. Lever handle 13 to
A frame-like regulating member 15 inserted from the outside so as to surround the handle tip 35 of the lever handle 31 and preventing the lever handle 31 from rotating;
A support 17 having a support shaft 37 in a direction perpendicular to the lever shaft 21 and fixed to the door 23 and rotatably supporting one side 39 of the frame-shaped regulating member 15 by the support shaft 37;
It is characterized by comprising.

  In this locking device, when the frame-shaped restricting member 15 is externally attached to the handle distal end portion 35 of the lever handle portion 31, when the lever handle portion 31 is rotated, the lever handle portion 31 is moved to the frame-shaped restricting member 15. The operation of the lever handle 13 is restricted by contacting the lower side portion 41. In order to enable operation of the lever handle 13, it is necessary to move the restricting member 15 so as not to interfere with the lever handle portion 31 so as to be out of the rotation region of the lever handle portion 31.

The lock device according to claim 4 of the present invention is the lock device according to claim 3,
A gate opening 57 is formed in the lower side portion 41 of the frame-shaped regulating member 15, and the gate opening 57 enters the frame-shaped regulating member 15 from the outside to the inside of the lever grip portion 31. The gate member 55 which permits only the above is provided.

  In this locking device, a portion of the lower side portion 41 that prevents the lever handle portion 31 from rotating is a gate member 55. The gate member 55 opens and closes the gate opening 57 of the lower side portion 41 that allows the lever handle portion 31 to pass through. The gate member 55 restricts the movement of the lever handle portion 31 in the direction of escaping outward, while allowing the movement of the lever handle portion 31 in the direction of entering from the outside to the inside.

A lock device according to claim 5 of the present invention is the lock device according to any one of claims 1, 2, 3, and 4,
An urging member that holds the restriction members 16 and 15 at a position that prevents the lever handle portion 31 from rotating is provided between the restriction members 16 and 15 and the support bodies 20 and 17. To do.

  In this locking device, the regulating members 16 and 15 are arranged at a position where the lever handle portion 31 is prevented from rotating by the urging member, and the lever handle 13 is in an invalid operation state during normal operation.

A lock device according to claim 6 of the present invention is the lock device according to any one of claims 1 to 5,
A gate urging member for urging and arranging the gate member 55 is provided at a position where rotation of the lever handle 31 is prevented.

  In this locking device, the gate member 55 urged by the gate urging member is disposed on the rotation direction side of the lever handle 31 while maintaining a state in which it does not swing. The gate member 55 is moved in the direction to return to the original position from the position after the rotation operation of the lever handle portion 31, but does not move in the operation direction from the position of the lever handle portion 31 before the rotation operation. Maintain a non-moving state. That is, the lever handle 31 before the rotation operation is always in an inoperable state. In the frame-shaped regulating member 15, the gate member 55 urged by the gate urging member is disposed at a position where the gate opening 57 is closed. The gate member 55 that closes the gate opening 57 is moved from the outside to the inside, but does not move from the inside to the outside and maintains the closed state. That is, the lever handle portion 31 positioned inward is always in an inoperable state.

A locking device according to claim 7 of the present invention is the locking device according to any one of claims 1 to 6,
A liner 69 for changing the mounting height of the supports 20 and 17 from the door surface 19 is provided between the door surface 19 and the supports 20 and 17 so as to be freely inserted and removed.

  In this locking device, the support bodies 20 and 17 fixed to the door surface 19 are fixed higher from the door surface 19 by the thickness of the liner 69 when the liner 69 is interposed between the support surfaces 20 and 17. When the mounting height of the supports 20 and 17 from the door surface 19 changes, the height from the door surface 19 of the gate member 55 that allows the lever handle portion 31 to pass through changes.

  According to the locking device of the first aspect of the present invention, in the normal state in which the regulating member is located near the edge on the rotation direction side of the handle tip of the lever handle, the lever handle is about to rotate. However, the lever handle portion hits the restricting member, preventing rotation and restricting the unlocking and opening operation. Thereby, unlocking operation and door opening operation by mischief can be made invalid, and safety can be improved. Further, when the lever handle can be used, the locked state can be easily released by rotating the regulating member and separating it from the lever handle. Furthermore, it can be easily assembled to an existing lever handle.

  According to the lock device of claim 2 according to the present invention, after the lever handle portion is operated, before the lever handle portion returns to the original position, the restricting member returns to the rotation prevention position. The lever handle pushes up the gate member so that the lever handle can be locked over the restricting member.

  According to the locking device of the third aspect of the present invention, in the normal state in which the handle distal end portion of the lever handle portion is inserted into the frame-shaped regulating member, even if the lever handle portion is to be rotated, the lever handle portion Hits the lower side of the frame-shaped regulating member, preventing rotation and regulating the unlocking and opening operations. Thereby, unlocking operation and door opening operation by mischief can be made invalid, and safety can be improved. Further, when the lever handle can be used, the locked state can be easily released by rotating the regulating member and removing it from the lever handle. Furthermore, it can be easily assembled to an existing lever handle.

  According to the lock device of the fourth aspect of the present invention, after the lever handle portion is operated, the frame-shaped regulating member is returned to the rotation prevention position before the lever handle portion returns to the original position. Even so, the lever handle portion pushes up the gate member and enters the inside of the frame-shaped regulating member, so that the lever handle can be locked.

  According to the lock device of the fifth aspect of the present invention, the restricting member can be arranged at the rotation preventing position of the lever handle portion by the urging member, and the normal operation can be maintained in an invalid operation state, thereby improving safety. .

  According to the lock device of the sixth aspect of the present invention, the gate member urged by the gate urging member is disposed on the rotation direction side of the lever handle portion while maintaining a state in which the gate member does not swing. The gate member is moved in the direction to return to the original position from the position after the rotation operation of the lever handle, but does not move in the operation direction from the position of the lever handle before the rotation operation and does not swing. To maintain. That is, the lever handle before the rotation operation is always in an inoperable state. In the frame-shaped regulating member, the gate member urged by the gate urging member is disposed at a position where the gate opening is closed. The gate member that closes the gate opening is moved from the outside to the inside, but does not move from the inside to the outside and maintains the closed state. That is, the lever handle portion located inward is always inoperable.

  According to the lock device of the seventh aspect of the present invention, the height of the support body from the door surface, that is, the gate of the regulating member is inserted by inserting a predetermined liner between the door surface and the support body. The height position of the member can be changed, and one support body can be attached to the various lever handle portions having different heights from the door surface.

It is a front view of the lock device concerning the present invention. It is a top view of the locking device shown in FIG. It is the side view which looked at the locking device shown in Drawing 1 from the handle tip part side. It is a top view of the locking device with which the frame-shaped regulating member was deregulated and the lever handle was rotated. FIG. 5 is a front view of FIG. 4. The top view of a locking device when a lever handle part returns first and a frame-shaped control member returns It is a front view of a locking device in case a frame-shaped control member returns first and a lever handle part returns from the back. FIG. 8 is a side view of FIG. 7. FIG. 9 is a side view of the locking device in which the lever handle is returned in the state after FIG. 8. It is a side view of the locking device which inserted the liner. It is the side view which looked at the locking device which showed other embodiment from the handle tip part side.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 is a front view of the locking device according to the present invention, FIG. 2 is a plan view of the locking device shown in FIG. 1, and FIG. 3 is a side view of the locking device shown in FIG.
In the present embodiment, a case where the locking device according to the invention is a lever handle lock 11 will be described as an example. The lever handle lock 11 has a lever handle 13, a frame-shaped restricting member 15, and a frame member support body 17 as a support body as main components. The lever handle 13 protrudes vertically from the door surface 19 with the lever shaft 21 being rotatable. The lever handle 13 is provided inside and outside the door 23, and is rotated integrally by a square shaft (not shown), for example. The square shaft passes through a lock mechanism (not shown) provided in the door 23, and the rotation operating force of the lever handle 13 is transmitted to the lock mechanism via the square shaft, so that the latch bolt 27 that protrudes at the door mouth 25. Alternatively, a dead bolt (not shown) is moved forward and backward.

  The lever handle lock 11 can be suitably used for a so-called anti-panic mechanism (not shown) that can release the locked state in an emergency or the like. While the anti-panic mechanism enables locking / unlocking with the thumb turn 29, in an emergency, if the lever handle 13 is turned strongly, the locking state is released and the door 23 can be opened immediately in an emergency. is there. Of course, the lever handle lock 11 may not be provided with this anti-panic mechanism, but may be configured with a simple lock function.

  The lever handle 13 enables the door 23 to be unlocked by the rotation of a lever handle 31 perpendicular to and perpendicular to the lever shaft 21. The lever handle 31 is operated by being rotated approximately 45 ° clockwise from the state shown in FIG. The lever shaft 21 is rotatable through the escation 33 fixed to the door surface 19.

  In the vicinity of the lever handle 13, there is provided a frame-shaped regulating member 15 that is inserted from the outside so as to surround the handle distal end portion 35 of the lever handle portion 31, that is, externally inserted. The frame-shaped restricting member 15 is inserted on the handle distal end portion 35 of the lever handle portion 31 to prevent the lever handle portion 31 from rotating. The frame-shaped regulating member 15 is formed in a square frame shape in the present embodiment.

  A frame member support 17 that supports the frame-shaped regulating member 15 is fixed to the door surface 19. The frame member support body 17 has a support shaft 37 in a direction perpendicular to the lever shaft 21 and perpendicular to the longitudinal direction of the lever handle portion 31, and one side portion 39 of the frame-shaped regulating member 15 is formed on the support shaft 37. Is supported in a freely rotatable manner. In the lower side portion 41 and the upper side portion 43 of the frame-shaped regulating member 15, a bearing portion 47 extends from one vertical side portion 45, and the upper and lower ends of the support shaft 37 are inserted into the bearing portion 47. The support shaft 37 is supported by the base member 49 of the frame member support 17. The base member 49 is formed in an L shape in plan view by the flat plate portion 51 and the standing portion 53. The frame-shaped regulating member 15 is rotated from a posture that is substantially parallel to the flat plate portion 51 to a posture that is parallel to the standing portion 53. That is, it rotates from a state substantially parallel to the door surface 19 to a vertical state.

  The frame-shaped regulating member 15 and the frame member support 17 are provided with a biasing member (not shown) over both. The urging member fastens the frame-shaped regulating member 15 at a position where the lever handle portion 31 is prevented from rotating. That is, the frame-shaped regulating member 15 is held in an upright state. Therefore, the frame-shaped regulating member 15 is disposed at a position where the lever handle portion 31 is prevented from rotating by the urging member, and normally makes the lever handle 13 in an operation invalid state. As a result, the lever handle 13 can always be maintained in an operation invalid state, and safety is improved.

  The lower side portion 41 of the frame-shaped restriction member 15 is provided with a gate member 55 that only allows the lever handle portion 31 to enter the frame-shaped restriction member 15 from the outside of the frame-shaped restriction member 15. . That is, in the frame-shaped regulating member 15, the portion of the lower side portion 41 that prevents the lever handle portion 31 from rotating is the gate member 55. The gate member 55 opens and closes the gate opening 57 of the lower side portion 41 that allows the lever handle portion 31 to pass through. The gate member 55 is rotatably supported at the gate base end 59 by a swing shaft 61 orthogonal to the lower side portion 41. A tip step portion 65 is formed at the gate tip 63, and the tip step portion 65 is adapted to fit into the opening step portion 67 of the gate opening portion 57. The gate member 55 is restricted from swinging in the direction in which the lever handle 31 is pulled outward (downward in FIG. 3) by fitting the tip step 65 into the opening step 67, while the lever handle 31 is Oscillation in the direction of entering from the outside to the inside (upward direction in FIG. 3) is allowed.

  As a result, after the lever handle 31 is operated and before the lever handle 31 returns to its original position, the lever handle 31 pushes up the gate member 55 even if the frame-like regulating member 15 returns to the rotation prevention position. The lever handle 13 can be locked again by entering the inside of the frame-shaped regulating member 15.

  A gate biasing member (not shown) is provided on the gate member 55 and the lower side portion 41. The gate urging member urges and arranges the gate member 55 at a position where the gate opening 57 is closed. The gate member 55 urged by the gate urging member closes the gate opening 57 in a normal state. The gate member 55 that closes the gate opening 57 can swing from the outside to the inside, but does not swing from the inside to the outside. That is, the lever handle portion 31 located inside the frame-shaped regulating member 15 is always in an inoperable state. Thereby, the gate member 55 always keeps the gate opening 57 in the closed state, and prevents the gate opening 57 from being in the unlocked state with the gate opening 57 open.

Next, the operation of the lever handle lock 11 having the above configuration will be described.
4 is a plan view of the locking device in which the frame-shaped regulating member 15 is deregulated and the lever handle 31 is rotated, and FIG. 5 is a front view of FIG.
As shown in FIGS. 1 to 3, the lever handle lock 11 normally has the frame-shaped regulating member 15 positioned at the handle distal end portion 35 of the lever handle 31, so that the frame-shaped regulating member remains as it is. 15 and the lever handle 31 contact each other. That is, the frame-shaped regulating member 15 prevents the lever handle portion 31 from rotating. In this state, it is impossible to rotate the lever handle 13, and inadvertent unlocking and opening operation by using the lever handle 13 can be prevented. That is, the lever handle lock 11 functions as a simple locking / unlocking device.

  In order to operate the lever handle 13, as shown in FIG. 4, it is necessary to rotate the frame-shaped restricting member 15 in the direction to remove it from the handle tip 35 so that the lever handle 31 can be operated independently. That is, unlocking and opening operation with both hands. By shifting the frame-shaped regulating member 15, the lower side portion 41 that hinders the operation in the operation direction of the lever handle portion 31 is eliminated, and the lever handle portion 31 can be operated independently. From this state, as shown in FIGS. 4 and 5, the lever handle lock 11 is unlocked and opened by rotating the lever handle 31.

FIG. 6 is a plan view of the lock device when the lever handle 31 is returned first and the frame-shaped restricting member 15 is returned.
The frame-shaped restricting member 15 that has rotated to a position where the lever handle 31 can be rotated returns to the handle tip 35 of the lever handle 31 again by the biasing force of the biasing member. Thereby, it will be in the state shown in FIG. 2 again, and the careless unlocking and opening operation of the lever handle 13 will be prevented.

  When the anti-panic mechanism described above is provided, even if the unlocking mechanism is in the locked state, if the frame-like regulating member 15 is moved and the lever handle 13 is operated strongly, the unlocking operation by the thumb turn 29 is performed. Unlocking is possible without performing it. In other words, even if the anti-panic mechanism is provided, the forced unlocking by the anti-panic mechanism will not function unless the frame-like regulating member 15 is moved. Thereby, a small child can prevent forced unlocking only by operating the lever handle 13 strongly. In addition, since the anti-panic mechanism functions only by moving the frame-shaped regulating member 15, the immediate opening of the door 23 in an emergency is not hindered.

FIG. 7 is a front view of the locking device when the frame-shaped regulating member 15 is returned first and the lever handle 31 is returned later.
In the lever handle lock 11 according to the present embodiment, after the lever handle portion 31 is operated, the frame-shaped regulating member 15 may return to the original position first. When the frame-shaped restricting member 15 is returned first, the lever handle portion 31 that is returned to the original position by a lever spring (not shown) comes into contact with the gate member 55 of the frame-shaped restricting member 15 from below.

8 is a side view of FIG. 7, and FIG. 9 is a side view of the locking device in which the lever handle 31 is returned in the rear state of FIG.
The lever handle portion 31 that is in contact with the gate member 55 from below pushes up the gate member 55 by the biasing force of the lever spring and passes through the gate opening 57 as shown in FIG. Enter. When the lever handle 31 returns to the horizontal position, as shown in FIG. 9, the gate tip 63 comes off from the lever handle 31 and swings by the biasing force of the gate biasing member, and again as shown in FIG. It arrange | positions so that the opening part 57 may be plugged up.

  The lever handle lock 11 functions by attaching the frame-shaped regulating member 15 to the door 23 regardless of the existing lever handle 13. Therefore, the existing lever handle 13 can be retrofitted very easily, and the safety and crime prevention of the existing lever handle 13 can be improved.

  Therefore, according to the locking device according to the present embodiment, in the normal state in which the handle distal end portion 35 of the lever handle portion 31 is inserted into the frame-shaped regulating member 15, The handle portion 31 hits the lower side portion 41 of the frame-shaped restricting member 15 and can prevent the rotation and restrict the unlocking and opening operation. Thereby, unlocking operation and door opening operation by mischief can be made invalid, and safety can be improved. Further, when the lever handle 13 can be used, the locked state can be easily released by rotating the frame-like regulating member 15 and removing it from the lever handle 31. Furthermore, it can be easily assembled to the existing lever handle 13.

FIG. 10 is a side view of the locking device with the liner 69 interposed therebetween.
In the lever handle lock 11, a liner 69 that changes the mounting height of the frame member support 17 from the door surface 19 is preferably provided between the door surface 19 and the frame member support 17 so as to be freely inserted and removed. When the liner 69 is sandwiched between the frame member support 17 fixed to the door surface 19 and the door surface 19, the frame member support 17 is fixed higher than the door surface 19 by the thickness of the liner 69. When the mounting height of the frame member support 17 from the door surface 19 changes, the height from the door surface 19 of the gate opening 57 through which the lever handle 31 passes is changed. In this way, by inserting a predetermined number of liners 69, that is, a number of thicknesses, between the door surface 19 and the frame member support 17, the height of the frame member support 17 from the door surface 19, ie, The height of the gate opening 57 of the frame-shaped regulating member 15 can be changed. Thereby, one frame member support 17 can be attached to correspond to various lever handles 13 having different heights from the door surface 19 such that the shape of the lever handle portion 31 is different or the length of the lever shaft 21 is different. .

FIG. 11 is a side view of a lock device showing another embodiment as viewed from the handle distal end side.
In the above-described embodiment, the example in which the restricting member 15 is formed in a frame shape and the lever handle portion 31 is in the inserted state to restrict the movement has been described. However, as shown in FIG. The regulating member 16 may be formed in a substantially rod shape, and the base end portion 18 may be pivotally supported on the support shaft 37 of the support body 20 so as to be configured in a cantilever shape. In this example, the regulating member 16 is disposed in the vicinity of the edge of the lever handle portion 31 on the rotation direction side of the tip end portion 35 of the lever handle portion 31, in the illustrated example, below the lever handle portion 31. Further, a gate member 55 is provided at the distal end 40 of the regulating member 16 via a swing shaft 61. The gate member 55 is swingable in the flip-up direction with respect to the restriction member main body 42, and a step portion 56 is formed at the base end of the gate member 55, and is substantially straight with the step portion 58 of the restriction member main body 42. It is possible to maintain a stable horizontal state. That is, in this locking device, when the regulating member 16 is positioned in the vicinity of the edge of the handle distal end portion 35 of the lever handle portion 31 on the rotation direction side, the lever handle portion 31 is regulated when the lever handle portion 31 is rotated. Contact with the member 16 restricts the operation of the lever handle 13. In order to enable the operation of the lever handle 13, it is necessary to move the regulating member 16 so as to be out of the rotation region of the lever handle portion 31 so as not to interfere with the lever handle portion 31. The gate member 55 provided at the distal end 40 of the restricting member 16 that prevents the rotation of the lever handle portion 31 restricts movement of the lever handle portion 31 in the operation direction. The movement in the direction of returning from the position to the original position is allowed.

  Further, the shape of the restricting member may be formed in a plate shape in addition to the frame shape or the substantially rod shape described above, and the rotation operation on the rotation direction side of the lever handle portion 31 of the lever handle 13 is performed. If it is set as the structure which blocks | prevents, it is good also as another shape and structure.

11 ... Locking device (lever handle lock)
13 ... lever handle 15 ... regulating member (frame-like regulating member)
16 ... Restriction member 17 ... Support (frame member support)
DESCRIPTION OF SYMBOLS 18 ... Base end part 19 ... Door surface 20 ... Support body 21 ... Lever shaft 23 ... Door 31 ... Lever handle part 35 ... Handle tip part 37 ... Support axis 39 ... One side part 40 ... Tip 41 ... Lower side part 55 ... Gate member 57 ... Gate opening 69 ... Liner

Claims (7)

A lever handle allowing the lever shaft to rotate freely from the door surface and projecting vertically, and a lever handle perpendicular to the lever shaft to rotate to unlock the door;
A regulating member that is positioned at least in the vicinity of the edge of the lever handle portion on the rotation direction side of the handle tip portion of the lever handle portion and prevents the rotation operation of the lever handle portion;
A support body that has a support shaft in a direction perpendicular to the lever shaft and is fixed to the door and rotatably supports a base end portion of the regulating member by the support shaft;
A locking device comprising: The locking device according to claim 1,
The locking device according to claim 1, wherein a gate member that can swing only in a direction when the lever member is returned to its original position after a rotation operation of the lever handle portion is provided at the tip of the regulating member. A lever handle allowing the lever shaft to rotate freely from the door surface and projecting vertically, and a lever handle perpendicular to the lever shaft to rotate to unlock the door;
A frame-shaped restricting member inserted from the outside so as to surround the handle tip of the lever handle, and preventing the lever handle from rotating;
A support body having a support shaft in a direction perpendicular to the lever shaft and fixed to the door and rotatably supporting one side portion of the frame-shaped regulating member by the support shaft;
A locking device comprising: A locking device according to claim 3,
A gate opening is formed at the lower side of the frame-shaped restricting member, and the gate member allows only the inward entry of the frame-shaped restricting member from the outside of the lever handle portion into the gate opening. A locking device is provided. The locking device according to any one of claims 1, 2, 3, and 4,
2. A locking device according to claim 1, wherein an urging member for holding the restricting member at a position where rotation of the lever handle portion is prevented is provided across the restricting member and the support. It is a locking device as described in any one of Claims 1-5,
A locking device comprising a gate urging member that urges and arranges the gate member at a position that prevents rotation of the lever handle. The locking device according to any one of claims 1 to 6,
A locking device characterized in that a liner for changing the mounting height of the support from the door surface is provided between the door surface and the support so as to be freely inserted and removed.

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