JP2006090052A - Door locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door locking device for locking a door from one side of the door for opening and closing by revolving around a vertical shaft. <P>SOLUTION: In this door locking device 10, a fixed partition member 3 is arranged on the opening-closing end side 4a of the door 4, and a locking receiver 23 is arranged in the partition member 3, and a lock piece 22 engageably-disengageably engageable with the locking receiver 23 is arranged on one surface of the door 4. The door locking device has a lower seat 11 integrally arranged on one surface of the door 4, a lock piece installing member 13 for movably supporting the lock piece 22 and supported by engageably-disengageably engaging with the lower seat 11, and a lock piece engagement releasing means 19 for releasing engagement of the lock piece installing member 13 and the lower seat 11 by thrust operation by an operation tool 5 from the other surface of the door 4 in an emergency by holding a state of engaging the lock piece installing member 13 with the lower seat 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door locking device that locks a door from one side of a door that swings around a vertical axis and opens and closes.

For example, the door locking device disclosed in Patent Document 1 that can lock the door of a toilet booth from the inside is configured as follows.
A door lock that has a lock bar that is slidable in the horizontal direction along the door surface, and a stopper is attached to the door support frame on the open / close end side of the door. In the apparatus, by sliding the lock bar toward the stopper, the lock bar can be locked to the stopper of the door support frame to lock the door.
JP 2004-19192 A

  In the door locking device described in Patent Document 1, when the person who operates the lock bar falls into the personnel affairs or suddenly becomes unable to move, the side where the lock bar is provided across the door and The person on the other side holds the emergency unlocking key, penetrates the door, rotates this emergency unlocking key, the pinion connected to the key rotates, and the rack meshed with this pinion It moves away from the stopper, and the lock bar is removed from the stopper together with the rack, and the door can be opened, so that the person who operates the lock bar can be rescued.

  However, in order to rotate the pinion with the emergency unlocking key, one or two rotations is not sufficient and requires a large number of rotations. There is a possibility that rescue of the trapped person will not be in time.

  The present invention relates to an invention of a door locking device that overcomes such difficulties, and can be easily unlocked in a short time by a simple operation from the side opposite to the side where the lock bar is provided across the door. An object of the present invention is to provide a door locking device capable of performing the above.

  According to the first aspect of the present invention, the door can be opened and closed in both the inward and outward directions around the vertical axis, and a fixed partition member is disposed on the open / close end side of the door, and is locked to the partition member. In the door locking device in which a lock is provided on one surface of the door, and a lower seat provided integrally with the one surface of the door. The lock piece is movably supported, the lock piece mounting member is supported by being detachably engaged with the lower seat, and the lock piece mounting member is kept engaged with the lower seat. In the emergency, the door locking device includes a lock piece engagement releasing means for releasing the engagement between the lock piece mounting member and the lower seat by a pushing operation from the other surface of the door by an operating tool.

  The invention according to claim 2 is characterized in that the lock piece has an elongated shape, and can reciprocate along the longitudinal direction of the lock piece with respect to the lock piece attachment member to be engaged with and disengaged from the locking receiver. The door locking device according to claim 1.

  The invention according to claim 3 is characterized in that the lock piece can be pivoted along the door surface with respect to the lock piece attachment member to be engaged with and disengaged from the locking receiver. Device.

  According to a fourth aspect of the present invention, there is provided the door locking device according to the third aspect, further comprising a sliding range limiting means capable of limiting a reciprocating sliding range of the lock piece.

  According to a fifth aspect of the present invention, the sliding range limiting means engages with the lower seat when the lock piece mounting member and the lower seat are engaged, and the locking piece mounting member and the lower seat 5. The door locking device according to claim 4, wherein the engagement with the lower seat is released when the engagement is released.

  According to a sixth aspect of the present invention, the lock piece attachment member and the lower seat are engaged by a spring provided in the lock piece engagement release means, and the urging force of the spring of the lock piece engagement release means is extended. The lock piece engagement release so that the engagement between the lock piece attachment member and the lower seat is released by the pushing operation of the emergency unlocking operation tool inserted into the hole penetrating the door along the line. The door locking device according to claim 1 or 2, wherein the means is configured.

  According to the first aspect of the present invention, the locking piece is provided with the locking piece driven by the pushing operation by the operating tool from the side opposite to the side where the locking piece is provided. The engagement between the mounting member and the lower seat integrated on one side of the door is easily released within a short time, and the door turns to the opposite side to the side where the lock piece is provided, opening the door. Even if the person who operates the lock piece falls into the personnel affairs or suddenly becomes unable to move, it can be rescued easily.

  In the second aspect of the invention, the lock piece is engaged with and disengaged from the lock receiving member by reciprocatingly sliding the elongated lock piece along the longitudinal direction with respect to the lock piece attaching member, and the door is easily locked or unlocked. Can be locked.

  In the invention according to claim 3, by rotating the lock piece along the door surface with respect to the lock piece attachment member, the lock piece can be engaged with and disengaged from the latching receiver, and the door can be easily locked or unlocked. .

  In the invention according to claim 4, locking and unlocking can be surely executed by limiting the reciprocating sliding range of the lock piece with the sliding range limiting means.

  According to the fifth aspect of the present invention, since the sliding range limiting means is also engaged with the lower seat when the lock piece mounting member is engaged with the lower seat, the lock piece mounting member is stable at two locations on the lower seat. As a result of being securely attached, the locked state can be secured even if the lock piece attachment member receives vibration or the like.

  When the engagement between the lock piece mounting member and the lower seat is released, the engagement between the sliding range limiting means and the lower seat is also released. As a result, the door can be reliably opened to the side opposite to the side where the lock piece is provided.

  According to the sixth aspect of the present invention, the emergency unlocking operation tool is inserted into the hole provided in the door along the extension line of the urging force of the spring of the lock piece engagement release means, and the emergency unlocking operation tool is inserted into the lock piece. By pushing against the urging force of the spring of the disengagement means, the engagement between the lock piece mounting member and the lower seat can be easily released, and it can be easily moved to the opposite side of the lock piece in a short time. The door can be opened.

  Hereinafter, embodiments of the present invention illustrated in FIGS. 1 to 23 will be described.

  In FIG. 1, a toilet booth 1 in which a toilet (not shown) is arranged in the center is arranged in a line in a building such as a public hospital, a station, or a department store. The door 4 is attached to the front of the toilet booth 1 so as to be openable and closable, and a door locking device 10 is attached to the inside of the door 4.

  In the recent toilet booth 1, the panel 3 is higher than the door 4 or reaches the ceiling of the building for privacy, so that the user who locked the door locking device 10 in the toilet booth 1 has no personnel. When a person falls outside the province or suddenly becomes unable to move, a person outside the toilet booth 1 gets over the panel 3 and enters the toilet booth 1 so that the user in the toilet booth 1 cannot be rescued. is there.

  In order to avoid such a situation, in the present embodiment, the door locking device 10 is configured as described below.

  As shown in FIGS. 3 and 4, the lower seat 11 is mounted integrally on the inner surface of the door 4 near the opening / closing end, with the three screws 12 passing through the lower seat 11 so as to be directed in the horizontal direction. Yes. As shown in FIGS. 3, 4, 9 and 10, the central portion 11a of the lower seat 11 is located in the center in the width direction, and three countersinks 11b are formed at every required interval in the longitudinal direction. In addition, a pin engaging hole 11c is formed between the second and third countersinks 11b from the base end side (the left end side in the drawing) of the lower seat 11, and is formed at the base end portion of the lower seat 11. Is formed with a pin abutting portion 11d erected at right angles toward the toilet booth 1, and the base end of the pin abutting portion 11d is bifurcated, and the bifurcated branch projecting portion 11e The tip 11f of the lower seat 11 is bent toward the inside of the toilet booth 1 and the tip side is folded back at the same angle. A semi-circular cutout 11g is formed at the tip 11f of the lower seat 11 and formed in parallel with the central portion 11a of the seat 11.

  As shown in FIG. 3, the lock piece mounting base member 13 has a substantially flat rectangular parallelepiped shape, and the distal end of the lock piece mounting base member 13 from the center of the base end surface (left end surface in FIG. 3) of the lock piece mounting base member 13. A slide hole 13a is formed toward (the right end in FIG. 3), and a slide limiting hole 13b is formed adjacent to the base end surface of the lock piece mounting base member 13 and intersecting the slide hole 13a at a right angle. Engagement notches 13c are formed at both corners of the booth side surface (upper surface in FIG. 3) of the lock piece mounting base member 13 adjacent to the slide hole 13a and the slide restricting hole 13b. And the emergency unlocking piston 15 are fitted, and a pin hole 15a formed in the diameter direction of the emergency unlocking piston 15 is formed in the slide limiting hole 13b of the lock piece mounting base member 13. In location state, the pin 16 is inserted into the pin hole 15a of the very unlocking piston 15 from the slide restriction hole 13b of the lock piece mounting base member 13.

  The lock piece mounting base member 13 has a fitting hole 13d for fitting the buffer rubber 17 from the booth side surface (upper surface in FIG. 3) on the front end side (right end side in FIG. 3) of the lock piece mounting base member 13. A screw portion 18a of a stopper 18, which is a sliding range limiting means, is screwed into the side surface of the door and close to the base end (close to the left end in FIG. 3) of the lock piece mounting base member 13 through the fitting hole 13d. A screw hole 13e is formed, and a fitting portion 17a of the buffer rubber 17 is fitted into the fitting hole 13d, and a stopper 18 is screwed into the screw hole 13e from the door side to the booth side. By sliding the lock piece mounting base member 13 toward the pin contact portion 11d of the lower seat 11 with the door side surface of the lock piece mounting base member 13 in contact with the booth side surface of the central portion 11a of the lower seat 11 , Engagement of lock piece mounting base member 13 With outs 13c is engaged with the forked-shaped branch projecting portion 11e of the lower seat 11, so that the small diameter portion 18b of the stopper 18 is engaged with the semi-circular notch 11g of the lower seat 11.

  Further, a pin guide hole 13f is formed in the lock piece mounting base member 13 from the booth side to the door side, and the door side end of the pin guide hole 13f is on the booth side as shown in FIG. A lock engagement release pin 19 having a stepped shape is fitted into the pin guide hole 13f from the booth side, and the pin spring 20 is loosened in the recess 19b of the large diameter portion 19a of the lock engagement release pin 19. Further, a pin lid 21 is integrally fitted to the booth side opening of the pin guide hole 13f, and the engagement notch 13c of the lock piece mounting base member 13 is formed on the bifurcated branch projecting portion 11e of the lower seat 11. In the state where the small diameter portion 18b of the stopper 18 is engaged with the semicircular notch 11g of the lower seat 11, when no force is applied to the lock engagement release pin 19, the pin spring 20 The small diameter of the tip of the lock engagement release pin 19 due to the spring force 19c is engaged with the pin engaging hole 11c of the lower seat 11, and is integrally coupled to the lock piece mounting base member 13 is in the lower seat 11.

  On the door side surface (the lower surface in FIG. 3) of the lock piece mounting base member 13, as shown in FIGS. 15 and 16, the base of the lock piece mounting base member 13 is located from an intermediate position between the screw hole 13e and the pin guide hole 13f. It protrudes toward the door side toward the end side (left end side in FIGS. 15 and 16), and this protruding portion 13g is formed to be narrower than the width of the lock piece mounting base member 13 and the tip of the protruding portion 13g. 13h (right end portion in FIGS. 15 and 16) is formed in a shape inclined obliquely toward the tip of the lock piece mounting base member 13, and the side surface of the raised portion 13g is the booth of the lower seat 11. As shown in FIG. 4, when the tip small diameter portion 19 c of the lock engagement release pin 19 is engaged with the pin engagement hole 11 e of the lower seat 11 as shown in FIG. The tip portion 13h of the protruding portion 13g is the tip portion 11f of the lower seat 11. Have an interval.

  In the lock piece 22 that is slidably fitted along the longitudinal direction of the lock piece mounting base member 13, as shown in FIGS. 8 to 10, the lock piece 22 is formed from both side edges of the top wall 22a. Both side walls 22b are bent at right angles toward the door side, and the end portions of the both side walls 22b are further provided with bent portions 22c bent inward at right angles, so that the lock piece 22 has a transverse section. A guide groove 22d is formed on the inner surface near the tip of the top wall 22a of the lock piece 22 (rightward in FIGS. 4 and 8), and the bent portion 22c of the lock piece 22 is formed as shown in FIG. As shown in FIG. 4, the engagement portion 13c is engaged with the missing groove portions 13i on both sides of the protruding portion 13g of the lock piece mounting base member 13, and the tip portion 18c of the stopper 18 is engaged with the guide groove 22d of the lock piece 22. Along the longitudinal direction of the lock piece mounting base member 13, Distance defined by the groove 22 d, locking member 22 is adapted to be reciprocally slidable. As shown in FIG. 8, two anti-slip dents 22e are formed near the base end (near the left end in FIG. 8) of the surfaces of both side walls 22b of the lock piece 22. As shown in FIG.

  Further, the booth side of the panel 3 located on the longitudinal extension line of the lower seat 11 and adjacent to the opening edge 4a of the door 4 penetrates the locking receiver 23 shown in FIGS. 3 and 18 to 21. The locking receiver 23 is integrally mounted by two bolts 24 screwed to the panel 3, and notches 23a are formed on both sides of the locking receiver 23 on the panel side (lower side in FIGS. 4 and 20). When the lock piece 22 slides toward the panel 3, the bent portion 22c of the lock piece 22 engages with the notch 23a of the latch receiver 23 so that the door 4 is locked. It has become.

  As shown in FIGS. 4 to 7, the door 4 is provided with an insertion hole 4 b located on the center extension line of the pin engaging hole 11 c of the lower seat 11.

  Since the embodiment shown in FIGS. 1 to 23 is configured as described above, a person who wants to use the toilet booth 1 pushes the door 4 from outside the toilet booth 1 as shown in FIG. Then, the door 4 opens toward the toilet booth 1.

  When the user who has entered the toilet booth 1 pushes the door 4 from the inside to the outside of the door 4, the front end of the lock piece 22 hits the panel 3 adjacent to the open end 4 a of the door 4, and the toilet booth 1 The door 4 is prevented from turning outward. Therefore, when the lock piece 22 located on the base end side (the left end side in FIG. 4) is moved toward the locking receiver 23, the lock piece 22 is locked at its bent portion 22c as shown in FIG. As shown in FIG. 4, the bent portion 22 c of the lock piece 22 moves into the notch 23 a of the lock receiver 23 as it moves toward the lock receiver 23 while being guided by the missing groove portion 13 i of the piece mounting base member 13. Engage and the door 4 is locked.

  In the state where the door 4 is locked, even if a person in the toilet booth 1 adjacent to the door 4 tries to look into the locked toilet booth 1, the panel 3 for partitioning the toilet booth 1 is high, so the person looks into it. I can't.

  If a person in the lockable toilet booth 1 falls into a labor saving situation or suddenly becomes unable to move, an emergency can be made from the outside of the toilet booth 1 to the insertion hole 3b as shown in FIG. When the elongated rod-like portion 5a of the unlocking operation tool 5 is inserted and pressed firmly, the tip small-diameter portion 19c of the lock engagement release pin 19 is detached from the pin engagement hole 11c, and the lock piece is released by the spring force of the emergency unlocking spring 14. Since the mounting base member 13 moves toward the locking receiver 23, as shown in FIG. 6, the engagement notch portion of the lock piece mounting base member 13 from the bifurcated branch projecting portion 11e of the lower seat 11 13c is disengaged and the small diameter portion 18b of the stopper 18 is disengaged from the semicircular arc notch 11g of the lower seat 11. As a result, as shown in FIG. The coupling between the lower seat 11 and the lock piece mounting base member 13 is released, and the door 4 It is open to the outside.

  Thus, since the door 4 can be opened outside, the person who was in the toilet booth 1 falls down toward the door 4 and pushes the door 4 from the inside to the outside. Even if it becomes difficult, people in the toilet booth 1 can be rescued immediately.

  Further, in the event of an emergency, the door 4 can be easily opened within a short time by simply inserting the elongated bar-like portion 5a of the emergency unlocking operation tool 5 into the insertion hole 4b of the door 4 and pressing the emergency unlocking operation tool 5 strongly. be able to.

  Moreover, even if the emergency unlocking operation tool 5 is not provided, the door 4 can be unlocked if there is an elongated object such as a wire, so that it is possible to appropriately cope with an emergency.

  In the embodiment shown in FIGS. 1 to 23, the lock piece 22 can reciprocate along the longitudinal direction of the lower seat 11 and the lock piece attachment base member 13 to lock and unlock the door 4. However, the present invention is naturally applicable to a lever-type locking device that can swing back and forth about an axis perpendicular to the surface of the door 4.

It is an external appearance perspective view of a toilet booth provided with the door locking device of the present invention. It is the perspective view seen from the inside of the toilet booth of FIG. It is a disassembled perspective view of the lower seat which is the principal part components of a door locking device, a lock piece attachment base member, and a latching receptacle. It is a longitudinal section top view of a door locking device. It is a vertical plan view of the door locking device in a state where the unlocking operation is performed. FIG. 6 is a longitudinal plan view of the door locking device illustrating the separated state of the lock piece mounting base member and the stopper with respect to the lower seat after the unlocking operation. It is a vertical plan view of the door locking device in a state where the door is unlocked and the door is opened. It is a reverse view of a lock piece. It is the cross-sectional view cut | disconnected along the IX-IX line of FIG. It is the cross-sectional view cut | disconnected along XX of FIG. It is a side view of a lower seat. It is a top view of a lower seat. It is an end view of a lower seat. It is a side view of a lock piece attachment base member. It is a top view of a lock piece attachment base member. It is a reverse view of a lock piece attachment base member. It is an end view of a lock piece attachment base member. It is a side view of a latching receiver. It is a top view of a latching receiver. It is the cross-sectional view cut along the XX-XX line of a stopper. It is a reverse view of a stopper. It is a top view of a stopper. It is an end view of a stopper.

Explanation of symbols

1 ... Toilet booth 2 ... Wall 3 ... Panel 4 ... Door 5 ... Emergency unlocking operation tool,
10: Door locking device, 11 ... Lower seat, 12 ... Screw, 13 ... Lock piece mounting base member, 14 ... Emergency unlocking spring, 15 ... Emergency unlocking piston, 16 ... Pin, 17 ... Buffer rubber, 18 ... Stopper, 19 ... Lock engagement release pin, 20 ... Pin spring, 21 ... Pin lid, 22 ... Lock piece, 23 ... Locking receiver, 24 ... Bolt.

Claims (6)

The door can be opened and closed in both inward and outward directions around the vertical axis, a fixed partition member is provided on the open / close end side of the door, and a latch receiver is provided on the partition member. In a door locking device in which a lock piece that can be detachably engaged with a receiver is provided on one surface of the door,
A lower seat integrally provided on one surface of the door;
A lock piece mounting member that supports the lock piece in a movable manner and is supported by being detachably engaged with the lower seat;
The lock piece mounting member is kept engaged with the lower seat, and the engagement between the lock piece mounting member and the lower seat is released by a pushing operation from the other surface of the door by an operating tool in an emergency. A door locking device comprising a lock piece engagement release means. 2. The door lock according to claim 1, wherein the lock piece has an elongated shape, and can reciprocate along the lock piece longitudinal direction with respect to the lock piece attachment member to be engaged with and disengaged from the locking receiver. apparatus. The door locking device according to claim 1, wherein the lock piece is pivotable along the door surface with respect to the lock piece attachment member, and can be engaged with and disengaged from the engagement receiver. 4. The door locking device according to claim 3, further comprising a sliding range limiting means capable of limiting a reciprocating sliding range of the lock piece. The sliding range limiting means engages with the lower seat when the lock piece mounting member and the lower seat are engaged, and disengages the lock piece mounting member and the lower seat with the lower seat. The door locking device according to claim 4, wherein the engagement with the door is released. The lock piece engagement member and the lower seat are engaged by a spring provided in the lock piece engagement release means, and penetrates the door along an extension line of the spring force of the lock piece engagement release means. The lock piece engagement release means is configured such that the engagement between the lock piece attachment member and the lower seat is released by the pushing operation of the emergency unlocking operation tool inserted into the hole. The door locking device according to claim 1 or 2.

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