JPH11172975A - Locking device unlockable in emergency - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device capable of opening a door freely outward and inward in an emergency. SOLUTION: This locking device is used for a locking part for locking a panel 91 to a door installed openably relative to the panel, and fixed to a mounting hole passing through the panel. It comprises an outer tube member 1 in which a lock groove 15 is formed in a part of a peripheral wall, an inner tube member 2 in which an engaging hole 22 is formed in correspondence with the lock groove, which is press-fitted into the outer tube member rotatably in circumferential direction, and in which a strike guide 5 is installed indoors, a lock member 3 which is arranged in the inner tube member, engageable and disengageable from the lock groove through the engaging hole and provided with a lock piece 31 capable of unlocking the engagement with the lock groove by pressing it toward the indoor side against the energizing force of a coiled spring 7, and a strike 4 which is fitted slidably to the strike guide and locks the door to a door stopper piece 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly applied to a lock portion of a public toilet or the like, and is capable of being unlocked from the outside in an emergency such as when a user falls down indoors. Locking device ".

[0002]

2. Description of the Related Art In an aging society, barrier-free and disabled people are required in general public facilities such as hospitals, schools, retail stores, facilities for the elderly, museums, etc. Friendly architecture is required. However, the conventional toilet booth door has a locked structure that opens only in one direction, and in the event of an emergency where the user falls down in the booth and fights for an instant to save lives, the door is unlocked using coins. Even if the door could be locked, the door stop was fixed to the booth door, and it was impossible to change the opening and closing of the door.

[0003]

Therefore, in the conventional method, when the user falls into a state of losing consciousness in a narrow booth, if the emergency unlocking is still open even if the door is opened, the door will be closed. Because it is slightly opened when hitting the body of a person, there is a problem that a doctor or an assistant does not enter the inside promptly and takes time for care and rescue. On the other hand, when the door is opened outward, the area has to be greatly increased, for example, by setting the width of the passage portion more than necessary so that the door does not hit the outside when the door is opened. Also, in the open-out setting, all doors are closed when not in use, so it is not possible to visually determine whether it is vacant or in use, so in hospitals and retail stores, etc. There were problems with later security and management.

Therefore, in the present invention, even in the case of a booth set to open inward, by removing a door stop and a locking device, the door can be freely opened inward and outward in an emergency to solve the problems of the prior art. It is another object of the present invention to provide a locking device in which countermeasures are taken against malfunctions and mischief and excellent in appearance.

[0005]

In order to solve the above problems, an emergency unlockable locking device according to the present invention comprises a panel or the like,
A locking device that is applied to a locking portion with an opening door that can be opened and closed with respect to the panel or the like, and is unlockable from the outdoor side in an emergency, and is formed through a door or a panel or the like. An outer cylindrical member fixed to the mounting hole and having a lock groove formed in a part of the peripheral wall, and an engagement hole formed corresponding to the lock groove so as to be rotatably fitted in the outer cylindrical member in the circumferential direction. An inner cylinder member provided with a strike guide at an end on the indoor side; and an inner cylinder member disposed inside the inner cylinder member and capable of engaging with and disengaging from the lock groove through the engagement hole. A lock member having a lock piece that is disengaged from the lock groove by being pushed in from the outdoor side toward the indoor side, and slidably fitted to the strike guide and provided on the outdoor side. Strike to lock the door between the door stop pieces Characterized in that it comprises and. In addition to the above configuration, the inner cylinder member has a door stop piece provided at an outdoor end of a cylindrical inner cylinder main body, and a strike guide is fixed to an indoor end. A lid is provided, and the lock member is formed of a rod-shaped member partially protruding radially outward to form a lock piece, and front and rear ends thereof are provided through the door stop piece and the inner cylinder lid. Preferably, the lock piece is urged to engage the lock groove via the engagement hole by the coil spring disposed between the inner cylinder lid and the lock piece.

Further, the emergency unlocking locking device of the present invention is applied to a locking portion of a panel or the like and an opening door provided on the panel or the like so as to be openable and closable. A locking device that is enabled, and is fixed to a mounting hole formed through a door or a panel, and corresponds to an outer cylinder member having a lock groove formed in a part of a peripheral wall, and the lock groove. An inner cylindrical member having an engagement hole formed therein, rotatably fitted in the outer cylindrical member so as to be rotatable in a circumferential direction, and a strike slidably provided in an end portion on the indoor side in the width direction; Is disengaged from the lock groove through the engagement hole, and is disengaged from the lock groove by being pushed in from the outdoor side toward the indoor side against the urging force of the coil spring. A lock member with a lock piece to be And is characterized in that it comprises a substantially L-shaped strike receiving said strike is possible disengaged.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An emergency unlocking locking device according to the present invention is characterized in that an external door stop and an internal strike fixed to one end of an inner cylinder in an outer cylinder penetrated through a booth panel are provided with an emergency lock. By pushing the release button, the whole device can be turned. By turning at a predetermined angle (the range of the groove for the outer cylinder rotation guide), it can be moved out of the rotation track range of the door and open freely inside and outside. It is characterized by. And
The spring device used in this locking device has an inner cylinder and an outer cylinder,
In normal times, the entire device is held at a predetermined position by a lock spring fitted in the lock spring groove to prevent downward rotation (sagging), and in an emergency operation, the outer cylinder is held down by pressing the outer cylinder. Things. Further, after the end of the emergency state, it is possible to easily return to the normal state. The locking device of the present invention makes it possible to turn the door stop and the internal strike upward by pressing the emergency lock unlock button with a handy ballpoint pen or the like without using a special jig or tool. In addition, the locking and door stop functions are released by rotating the entire apparatus using a coin or the like, and the apparatus can be easily opened inside and outside freely. With this function, a caregiver or the like can enter the inside without any trouble without affecting the inside sick person or the like. In addition, since it is used with the door open in normal times, there is no possibility of an increase in area or security or management problems. Furthermore, if the facility manager or the like only knows that the button is pushed upward by turning the button, it will not be unlocked only by operating the button, so that mischief by a third party can be prevented. The outer cylinder is made of a steel plate or a steel pipe, the inner cylinder and the lock mechanism are made of a steel plate or a steel tube, and the inner and outer cylinder locking springs are made of metal plate or resin and have elasticity. The outer door stop and the inner strike are made of a light alloy casting, a processed stainless steel plate, a processed product of brass or the like, and are manufactured according to the design and the price.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an "emergency unlockable locking device" of the present invention will be described.
Will be described in more detail. FIGS. 1 and 2 are a plan view and a front view showing a toilet 9 to which a first embodiment of the locking device of the present invention is applied. As shown in these drawings, the present invention is mainly applied to a locking portion of a public toilet 9 in which a toilet booth 90 is provided on the left and right sides.
Each toilet booth 90 is enclosed in a rectangular shape by a panel 91 and the like, and an opening door 92 is provided on the front side thereof so as to be openable and closable. In this embodiment, the door 92 is in a normal use state, as shown by a solid line in FIG.
It is an inward opening door that opens only inside 0. The locking device of the present invention is provided on a panel 91 or the like on the front side at a position close to the end of the door 92 on the front end side.

FIG. 3 is an exploded perspective view showing the locking device of the first embodiment. The locking device of this embodiment includes a panel 9
1 and the like, an inner cylinder member 2 fitted and inserted into the outer cylinder member 1, a lock member 3 housed in the inner cylinder member 2, and a sliding member at the front end of the inner cylinder member 2. And a strike 4 for locking the door 92. The outer cylinder member 1 is formed in a cylindrical shape,
It is provided on the panel 91 and the like along the front-rear direction. A disc-shaped flange-shaped flange portion 11 is provided at the outdoor end of the outer cylinder member 1.
Are formed. A guide groove 12 is formed in the outer cylinder member 1 at a position slightly deviated to the left in the circumferential direction from the vertically upper position when viewed from the front side, from the flange portion 11 toward the front. The guide groove 12 is formed in a substantially T-shape by being cut out so as to penetrate through the inside and outside of the peripheral side wall of the outer tubular member 1, and is formed to extend forward and long while cutting out a part of the flange portion 11. Straight guide groove 13 and a direction perpendicular to the front end of the straight guide groove 13 (both circumferential sides)
And a rotation guide groove 14 formed to extend. The right end in the circumferential direction of the rotation guide groove 14 is formed so as to reach a vertically upper position of the outer cylinder member 1, and the left end in the circumferential direction is the left end (chamber) of the outer cylinder member 1. It is formed so as to reach a position about 90 degrees to the left in the circumferential direction from the vertically upper position when viewed from the outside.

The outer cylinder member 1 has a substantially rectangular shape elongated in the front-rear direction at a vertically upper position between the flange portion 11 and the rotation guide groove 14 and a vertically lower position radially opposed thereto. The lock grooves 15, 15 are formed so as to penetrate through the inside and outside of the peripheral side wall of the outer cylindrical member 1. Note that the lock groove 15 may be formed by cutting a part of the inner surface of the peripheral side wall of the outer cylinder member 1, instead of forming the lock groove 15 by cutting through the inside and outside of the outer cylinder member 1. Further, on the left and right sides of the flange portion 11 of the outer cylinder member 1, the outer cylinder member 1 is
For example, a screw insertion hole is formed through the flange portion 11 in the front-rear direction. The outer cylinder member 1 having such a configuration is fixed to the panel 91 and the like along the front-rear direction. For this, the outer cylinder member 1 is fitted into a mounting hole formed through the panel 91 or the like in the front-rear direction, and the flange portion 1 is formed.
1 is in contact with the rear surface of the panel 91 or the like, and the mounting screw 1 is attached to the panel 91 or the like through the screw insertion hole of the flange portion 11.
This is done by screwing in 9,19.

The inner cylinder member 2 is formed in a cylindrical shape large enough to fit in the outer cylinder member 1. A rotation guide 21 is formed at the upper end of the peripheral side wall of the inner cylinder member 2 at a position corresponding to the rotation guide groove 14 of the outer cylinder member 1. The rotation guide 21 has a substantially rectangular shape, and the length dimension in the front-rear direction matches the width dimension in the front-rear direction of the rotation guide groove 14, and the length dimension in the left-right direction is the width of the straight guide groove 13 in the left-right direction. It is formed smaller than the size. A substantially rectangular engaging hole 22 is formed in the peripheral side wall of the inner cylindrical member 2 at an upper and lower position corresponding to the lock groove 15 of the outer cylindrical member 1 so as to penetrate the inner and outer sides of the peripheral side wall. Locking grooves 2 for locking an inner cylinder cover 6 described later are formed in both left and right front ends of the peripheral side wall of the inner cylinder member 2.
3 and 23 are each formed in a substantially T-shape with an opening at the front end. That is, the inner cylindrical member 2 is notched in a rectangular shape from the front end edge toward the rear, and the rear end portion is also notched in the right and left sides in the circumferential direction to form a substantially T-shaped locking groove 23. Have been. A door stop piece 8 is fixed to the rear end of the inner cylinder member 2. Door stop piece 8 is door 92
Is formed so as to extend to the right side toward the door end side end portion, and the extension portion is formed as a single stepped step portion 81, and is formed to protrude rearward. The door stop piece 8 is provided such that the step portion 81 protrudes toward the door 92 from an end surface of the panel 91 or the like, and a door stop rubber 82 is fixed to a front surface of the step portion 81. Further, a circular through hole 83 is formed in the door stop piece 8 at a position corresponding to the center of the inner cylinder member 2 in a fixing portion with the inner cylinder member 2 so as to penetrate in the front-rear direction.

The lock member 3 is accommodated and disposed in the inner cylinder member 2 while its front end is inserted into the inner cylinder lid 6 via a coil spring 7. The lock member 3 is made of a rod 30 having a rectangular cross section, and has a substantially L-shaped lock piece 3 at the center thereof.
1, 31 are vertically formed and integrally formed. These lock pieces 31 are also formed in the same thickness as the bar 30 and are formed on the same plane as the bar 30 along the vertical direction. The lock piece 31 is formed to extend rearward after extending vertically from the bar 30 and extend outward in the vertical direction as it goes rearward, while its rear end is formed as it goes rearward. It is formed to be inclined inward in the vertical direction. With such a configuration, each lock piece 31 is elastically deformable so as to approach the inside of the vertical direction toward the side of the bar 30. In a normal state, the upper end of the upper lock piece 31A and the lower lock piece 3
The distance from the lower end of 1B is formed to be approximately equal to the outer diameter of the outer tubular member 1. At the rear end of the lock member 3,
An unlock button 32 is fixedly provided. The lock release button 32 has a stepped cylindrical shape with the small diameter portion 32A facing rearward, and the rear end of the bar 30 of the lock member 3 is fitted and fixed to the front end. The large diameter portion 32B
Is smaller than the inner diameter of the inner cylindrical member 2, and the small diameter portion 32A is
The diameter of the through hole 83 formed in the door stop piece 8 is slightly smaller.

The inner cylinder lid 6 is formed of a disk having a size adapted to the inner diameter of the inner cylinder member 2 and has a locking member 3 at the center thereof.
A substantially rectangular fitting hole 61 is formed for fitting the front end portion of the base member so as to be able to advance and retreat. At the left and right ends of the inner cylinder cover 6, substantially rectangular locking projections 62, 62 which are locked in the locking grooves 23, 23 of the inner cylinder member 2 are integrally formed so as to protrude outward in the radial direction. . In addition, the locking projections 62, 62 are provided on the inner cylinder lid 6.
Screw holes 63, 63 for fixing a strike guide 5 to be described later are formed in the left and right end portions slightly inward in the radial direction to penetrate in the front-rear direction. The lock member 3
The small-diameter portion 32A at the rear end is fitted into the through hole 83 of the door stop piece 8, and the front end is able to move forward and backward in the insertion hole 61 of the inner cylinder lid 6 after the coil spring 7 is fitted over the outside. Is inserted. The inner cylinder lid 6 is provided with the locking groove 2 of the inner cylinder member 2.
The locking projections 62 are locked by the locking members 3, 23, whereby the inner cylindrical member 2 is covered with the locking member 3 housed in the inner cylindrical member 2. The inner cylinder member 2 having such a configuration is provided by being fitted into the outer cylinder member 1. On this occasion,
The rotation guide 21 of the inner cylinder member 2 is attached so as to be arranged from the straight guide groove 13 of the outer cylinder member 1 to the rotation guide groove 14. Thereby, the lock pieces 31 of the lock member 3 in the inner cylinder member 2 engage with the lock grooves 15 of the outer cylinder member 1 via the engagement holes 22 of the inner cylinder member 2, and The tubular member 2 and the outer tubular member 1 are fixed, and the stepped portion 81 of the door stop piece 8 of the inner tubular member 2 is disposed toward the door 92 (right side).

A strike guide 5 is provided on the front surface of the inner cylinder lid 6.
Is provided. The strike guide 5 has a longitudinal section formed in a substantially hat shape with the central portion 51 protruding rearward.
In the central portion 51, a fitting insertion hole 52 and screw insertion holes 53, 53 are formed at positions corresponding to the fitting insertion hole 61 of the inner cylinder cover 6 and the left and right screw holes 62, 62. Therefore, the insertion hole 52
With the front end of the lock member 3 inserted into the
9 and 59 are inserted from the front of the strike guide 5 with the screw insertion holes 5
The strike guide 5 can be fixed to the inner cylinder lid 6 in the left-right direction by screwing into the screw holes 63, 63 of the inner cylinder lid 6 via the holes 3 and 53. The strike 4 is fitted to the strike guide 5 fixed in this manner so as to be slidable in the left-right direction. The strike 4 is formed from a substantially rectangular bar elongated in the left-right direction.
Has a slide groove 41 formed in the rear end face and the left end face. The slide groove 41 is formed in a stepped substantially rectangular shape with a vertical cross section whose diameter is reduced vertically at a rear end portion. The strike 4 is held slidably to the left and right with respect to the strike guide 5 in a state where the slide groove 41 is fitted to the strike guide 5. That is, the upper and lower ends 54, 54 of the strike guide 5 are disposed in the enlarged diameter portions 41A, 41A of the slide groove 41 of the strike 4. The strike 4 is fitted into the strike guide 5 from the opening of the slide groove 41 opened on the left end face, but after the fit of the two 4 and 5, the opening of the left end of the slide groove 41 of the strike 4 is formed. In addition, the falling-off prevention screw 49 is projected from the lower end of the strike 4 into the slide groove 41 to prevent the strike 4 from falling off from the strike guide 5.

With the above configuration, in a normal use state, the lock member 3 is arranged in a compressed state between the lock piece 31 and the inner cylinder lid 6 as shown in FIGS. The biasing force of the applied coil spring 7 causes the lock piece 31 to protrude into the lock groove 15 of the outer cylinder member 1 through the engagement hole 22 of the inner cylinder member 2. Are fixed integrally with the outer cylinder member 1 and the panel 91 and the like. Therefore, as shown by a solid line in FIG. 4 (see the toilet booth 90 on the right side in FIG. 2), the door stop piece 81 is arranged in the left-right direction so as to protrude toward the door 92 from the end of the panel 91 or the like. , Strike 4 are also slidably arranged in the left-right direction. This allows
The inwardly-opening door 92 can be opened and closed with respect to the panel 91 and the like provided with the locking device of the present invention, and by moving the strike 4 so as to sandwich the door 92 between the door stop piece 8 and the door 92, the door 92 is opened. Can be locked. On the other hand, booth 90
In the event of an emergency such as a person falling inside, not only can the door be unlocked from the outside, but the door 92 can be opened both on the inside and outside, making it extremely easy to rescue the inside person. Is what you can do. That is, as shown in FIG. 7, the lock release button 32 of the lock member 3 protruding from the through hole 83 of the door stop piece 8 is pushed forward from the outdoor side toward the indoor side against the urging force of the coil spring 7. As a result, the lock pieces 31 are pushed out from the lock grooves 15 of the outer cylinder member 1 while the upper and lower lock pieces 31 of the lock member 3 are elastically deformed so as to approach each other.
The engagement between the inner cylinder member 2 and the outer cylinder member 1 is released. Therefore, as shown by a two-dot chain line in FIG. 4 (see the toilet booth on the left side in FIG. 2), in this state, the door stop piece 8 and the inner cylinder member 1 integrated therewith are moved in the circumferential direction with respect to the outer cylinder member 1. 90 on the left
Can be rotated degrees. During this rotation,
The rotation guide 21 of the inner cylinder member 2 moves along the rotation guide groove 14 of the outer cylinder member 1. As a result, the strike guide 5 fixed to the inner cylinder lid 6 of the inner cylinder member 2 and the strike 4 fitted thereto are also rotated 90 degrees to the left in the circumferential direction with respect to the outer cylinder member 1. The door stop pieces 8 can be arranged vertically so that they do not protrude from the end surface of the panel 91 or the like toward the door 92.
Therefore, not only can the door be unlocked, but also the door 92 can be opened not only on the indoor side shown by the solid line in FIG. 1 but also on the outdoor side shown by the dotted line, and the opening operability can be changed.

FIG. 8 is an exploded perspective view showing a second embodiment of the emergency unlocking locking device according to the present invention. This embodiment also
The structure is almost the same as that of the first embodiment, except that the locking device is provided not on the panel 91 or the like but on the door 92 side, the inner cylinder member 2, the door stop piece 8, the strike 4
And so on. The outer cylinder member 1 is formed in the same configuration as that of the first embodiment, and
And a flange 11 formed at a rear end of the door 11 at a rear end thereof.
Are fixed to the door 92 with mounting screws 19, 19. The inner cylinder member 2 is formed in a cylindrical shape large enough to be fitted into the outer cylinder member 1, and its rear end is closed by a disc-shaped flange wall 24. This flange wall 24
Is formed such that a central portion protrudes rearward in a short columnar shape.
A through hole 83 is formed in the center of the protruding portion 25 so as to penetrate the flange wall 24 in the front-rear direction. Further, the protruding portion 25 is formed with a U-shaped groove 83A crossing the through hole 83 in the vertical direction. Note that the vertical cross section of the U-shaped groove 83A has an arc shape as shown in FIG.

The inner cylinder member 2 of this embodiment includes a rotation guide 2
1 protrudes from the left end of the peripheral side wall. Further, in this embodiment, the inner cylinder member 2 is formed to have a length sufficiently protruding from the front surface of the door 92 when attached to the door 92, and the inner cylinder member 2 is provided at the front end portion in the radial direction. (Left and right direction)
And a substantially rectangular strike hole 26 is formed. The substantially T-shaped locking groove 23 for fixing the inner cylinder cover 6 is formed so as to cross the strike hole 26 in the front-rear direction. Therefore, the lock member 3 having the same configuration as that of the first embodiment has the rear end portion 32A fitted into the through hole 83 of the flange wall 24 of the inner cylindrical member 2, while the coil spring 7 is fitted over the front end portion. After that, the inner cylinder lid 6 is inserted into the insertion hole 61 so as to be able to advance and retreat, and the locking projections 62, 62 of the inner cylinder lid 6 are engaged with the locking grooves 23, 23 of the inner cylinder member 2. A lock member 3 can be provided in the tubular member 2. And such an inner cylinder member 2 is fitted and attached to the outer cylinder member 1 fixed to the door 92. Thereafter, the door stop piece 8 is externally fitted to and fixed to the inner cylindrical member 1 protruding from the front surface of the door 92. The door stop piece 8 of this embodiment has a thin disk-shaped mounting portion 84.
A door stop main body (step portion) 81 is continuously provided on the upper left side of the door. The stepped portion 81 protrudes forward in an L-shape from an upper portion on the left side near the panel 91 or the like of the mounting portion 84, and has a front end bent and formed to the left in an L-shape. Are formed so as to protrude from the door-end side end surface of the door 92 to the panel 91 or the like. Further, a door stop rubber 82 is fixed to the rear surface of the step portion 81 of the door stop piece 8. Then, the door stop piece 8 is integrated with the inner cylinder member 2 by welding or the like after fitting a circular hole formed in the center of the mounting portion 84 to the distal end of the inner cylinder member 2.

Thereafter, the strike hole 26 of the inner cylindrical member 2 is formed.
In addition, a strike 4 is provided slidably in the left-right direction. The strike 4 of this embodiment is made of a bar having a rectangular cross section with a vertical section, and a substantially rectangular plate-like handle 42 is provided on the front end face at a position slightly closer to the right than the left end. It is provided in. Then, after the strike 4 is inserted into the strike hole 26 from the right end of the strike 4,
By attaching a retaining screw 49 to the front end of the right end of the strike 4, the strike 4 is prevented from falling off from the inner cylindrical member 2. The front end opening of the inner cylindrical member 2 is
It is closed by the second inner cylinder lid 69. Meanwhile, panel 91
The strike receiver 45 is attached at a height corresponding to the strike 4. Strike receiver 45
Is formed by bending an elongated rectangular plate stepwise. That is, the upper end of the first piece 45A fixed to the front surface of the panel 91 or the like is bent perpendicularly to the first piece 45A in an L-shape and extends forward to form the second piece 45B. The front end of the second piece 45B is bent in an L-shape perpendicular to the second piece 45B and extends upward to form a third piece 45C.

With the above configuration, in a normal use state, as shown in FIGS. 9 to 11, the door 92 can be used to open inward, and the door stop piece 8 provided on the door 92 can be used as a panel 91 or the like. The left end of the strike 4 is engaged with the strike receiver 45 in a state where the door 92 is in contact with the front of the door 92.
Can be locked. That is, strike receiver 4
5 between the third piece 45C and the panel 91 etc.
, The door 92 can be locked. The operation of the strike 4 can be performed by pinching the handle 42 with a finger. In an emergency such as when a person falls down in the booth 90, the lock release button 32 of the lock member 3 protruding from the through hole 83 of the flange wall 24 of the inner cylinder member 2 is attached to the coil spring 7 as shown in FIG. By pushing forward from the outdoor side toward the indoor side against the force, the inner cylinder member 2 is operated in the same manner as in the first embodiment.
And the outer cylinder member 1 can be released from engagement. In addition,
In the second embodiment, the protrusion 25 is provided on the flange wall 24, and the U-shaped groove 83A is formed across the through hole 83 of the protrusion 25, so that a coin is inserted into the U-shaped groove 83A. As a result, not only can the lock member 3 be pushed forward to push the rear end of the lock member 3 to engage and disengage the lock piece 31 and the lock groove 15, but also by turning the coin while the coin is inserted into the U-shaped groove 83A, The inner cylinder member 2 can also be rotated 90 degrees to the right in the circumferential direction with respect to the cylinder member 1. Accordingly, the strike 4 and the door stop piece 8 provided at the distal end portion of the inner cylindrical member 2 can be arranged vertically so as not to protrude from the door end side end surface of the door 92. Therefore, not only can the door be unlocked, but also the opening of the door 92 can be changed.

[0020]

As described above in detail, according to the emergency unlocking locking device of the present invention, the same operation as that of a general product is usually realized, but in the event of an emergency, the operation of the locking device can be improved. The booth door, which only opened in the direction, can be freely opened inside and outside, so that a person who falls down inside can be easily assisted. In addition, when the present invention is applied to an inward opening door, there is no increase in area caused by outward opening.

[Brief description of the drawings]

FIG. 1 is a plan view showing a toilet to which a first embodiment of a locking device according to the present invention is applied.

FIG. 2 is a front view showing a toilet to which the first embodiment of the locking device of the present invention is applied.

FIG. 3 is an exploded perspective view showing a first embodiment of the locking device of the present invention.

FIG. 4 is a front view showing a use state of the first embodiment of the lock device of the present invention, and shows a state at the time of emergency unlocking by a two-dot chain line.

FIG. 5 is a transverse sectional view (AA sectional view) in FIG. 4;

FIG. 6 is a longitudinal sectional view (BB sectional view) in FIG. 4;

FIG. 7 is a longitudinal sectional view at the time of emergency unlocking in FIG.

FIG. 8 is an exploded perspective view showing a second embodiment of the locking device of the present invention.

FIG. 9 is a front view showing the use state of the second embodiment of the locking device of the present invention.

FIG. 10 is a cross-sectional view of FIG.

11 is a longitudinal sectional view in FIG.

FIG. 12 is a longitudinal sectional view at the time of emergency unlocking in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer cylinder member 2 Inner cylinder member 3 Lock member 4 Strike 5 Strike guide 6 Inner cylinder lid 7 Coil spring 8 Door contact piece 15 Lock groove 22 Engagement hole 30 Bar (bar-shaped member) 31 Lock piece 45 Strike receiver 91 Panel 92 Door

Claims (3)

[Claims] 1. A locking device which is applied to a locking portion of a panel or the like and an opening door provided to be openable and closable with respect to the panel or the like, and which can be unlocked from an outdoor side in an emergency. Or, an outer cylinder member fixed to a mounting hole formed through a panel or the like and having a lock groove formed in a part of a peripheral wall, and an engagement hole corresponding to the lock groove is formed, and the outer cylinder member is An inner cylinder member having a strike guide provided at an end on the indoor side, which is rotatably fitted in the circumferential direction, and an inner cylinder member disposed in the inner cylinder member and engaged with the lock groove through the engagement hole. A lock member having a lock piece that is detachable and is disengaged from the lock groove by being pushed from the outdoor side toward the indoor side against the urging force of the coil spring, and is slidable on the strike guide. Door stop piece fitted outside Emergency unlocking possible locking device, characterized in that it comprises a strike for locking the door in between. 2. The inner cylinder member has a door stop piece provided at an outdoor end of a cylindrical inner cylinder main body, and an inner cylinder lid to which a strike guide is fixed is provided at an indoor end. The lock member is composed of a rod-shaped member partially protruding radially outward to form a lock piece, and front and rear ends thereof are provided through the door stop piece and the inner cylinder lid. 2. The lock piece according to claim 1, wherein the lock piece is urged to engage with the lock groove via the engagement hole by the coil spring disposed between the cylinder lid and the lock piece. 3. Emergency unlocking locking device. 3. A locking device which is applied to a locking portion of a panel or the like and an opening door provided to be openable and closable with respect to the panel and the like, and which can be unlocked from the outdoor side in an emergency. Or, an outer cylinder member fixed to a mounting hole formed through a panel or the like and having a lock groove formed in a part of a peripheral wall, and an engagement hole corresponding to the lock groove is formed, and the outer cylinder member is An inner cylinder member rotatably fitted in the circumferential direction, and a strike slidably provided in the width direction at an end on the indoor side; disposed in the inner cylinder member, via the engagement hole; A lock member provided with a lock piece that is detachable from the lock groove and is pushed from the outdoor side toward the indoor side against the urging force of the coil spring to release the engagement with the lock groove; Or the door is provided, and the strike is disengageable. L-shaped emergency unlocking possible locking device, characterized in that it comprises a strike receiving.