JP2003129719A - Locking device for door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking device for a door being capable of unlocking the door by a one-time pushing operation and preventing the unexpected closing and locking of the door when not in use. SOLUTION: The locking device for the door is composed of a slide-piece operating mechanism 1, in which a push button 3 is installed in a movable and returnable manner in the pushing direction, a slide piece 6 is mounted slidably along a striker 5, the slide piece 6 is slid in the external direction of the striker 5 by the pushing operation of the push button 3 by a cam mechanism 7 by an inclined plane 8 and a guide 9 and the slide piece 6 can be returned by a spring mechanism 10 after the release of a pushing-in operation, and a latch operating mechanism 2 in which a latch 13 can be moved and returned by pushing force with the operation of the slide piece 6 and a spring mechanism 14. A push button 40 is secured to a box body 11 in the movable and returnable manner in the latch operating mechanism 2, and the push button 40 has a stopper section 42 preventing the retraction of a supporting bar 25 for the latch 13 projected from the box body 11 at the place of a return and a groove section 43 permitting the retraction of the supporting bar 25 for the latch 13 at the place of a moving stop.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door locking device. In particular, it can be used as a door locking device that is easy and quick in unlocking a toilet or the like, is excellent in hygiene, and prevents unexpected closing or locking of the door when the toilet or the like is not used.

[0002]

2. Description of the Related Art A conventional door locking device for a toilet or the like, which is more hygienic, is a single operation only when unlocking the operation which was conventionally required twice when locking and unlocking, and which reduces the burden on the hand. As a prior application by the applicant (Japanese Patent Application No. 2000-37
3575).

[0003]

(1) In this prior application, with reference to FIG. 6, a push button 3 is provided on a receiving seat 5 so as to be movable and returnable by a spring mechanism 4 in the pushing direction. A slide piece 6 is provided slidably along the receiving seat 5, and is pushed by a cam mechanism 7 formed by an inclined surface 8 provided at the end of the push button 3 and a guide 9 provided on the slide piece 6. A slide piece operating mechanism 1 in which the slide piece 6 is slid toward the outside of the seat 5 by pushing the button 3 and the slide piece 6 can be returned by the spring mechanism 10 after the pushing operation of the push button 3 is released. A latch operation is provided in which a latch 13 is provided at a position projecting outward from the opening 12 on the side portion of the box body 11, and the latch 13 can be moved / returned by the pressing force and the spring mechanism 14 associated with the operation of the slide piece 6. mechanism Consisting of a door for a locking device according to claim. (2) In the door locking device of this prior art, the cam mechanism 7 is operated by one operation of pushing the push button 3.
The slide piece 6 can be moved forward via the latch 13 and the latch 13 can be moved backward to open the door 18. However, if the door 18 is closed unintentionally in the door 18, for example, when the toilet is not used and the door 18 is closed unexpectedly, the push button 3 cannot be operated from outside the door 18, so that the door 18 cannot be opened. There is a problem that it will occur. (3) In view of such a problem, the present invention reduces the burden on the hand from the hygiene to a single operation only when unlocking the operation that was conventionally required twice when locking and unlocking. An object of the present invention is to provide a door locking device that maintains the advantage of being preferable and additionally prevents unexpected closing / locking of the door when the toilet or the like is not used.

[0004]

In order to solve such a problem, the door locking device of the present invention is such that the push button 3 can be moved / returned by the spring mechanism 4 in the pushing direction by the seat 5.
The slide piece 6 is provided in the seat 5 so as to be slidable along the seat 5, and the inclined surface 8 provided at the end of the push button 3 is provided.
And the cam mechanism 7 formed by the guide 9 provided on the slide piece 6, the push button 3 is pushed in,
The slide piece 6 is slid toward the outside of the seat 5, and after the pushing operation of the push button 3 is released, the slide piece 6 can be returned by the spring mechanism 10 and the side portion of the box body 11. A latch 13 is provided at a position projecting outward from the opening 12, and a latch actuating mechanism 2 capable of moving / restoring the latch by a pressing force associated with actuation of the slide piece 6 and a spring mechanism 14 is provided. 2, a push button 40 is provided on the box body 11 so that the push button 40 can be moved and returned by a spring mechanism 41.
1 in the outward push button 40 return position
The stopper portion 42 that prevents the support rod 25 of the latch 13 protruding from the rearward movement, and the push button 40 inside the box body 11.
And a groove portion 43 that allows the support rod 25 of the latch 13 to retract at the movement stop position.

The door locking device of the present invention comprises a push button 3
Is provided on the receiving seat 5 so as to be movable / returnable by the spring mechanism 4 in the pushing direction, the slide piece 6 is provided inside the receiving seat 5 so as to be slidable along the receiving seat 5, and is provided on the end portion of the push button 3. With the cam mechanism 7 formed by the inclined surface 8 and the roller 9 provided at one end of the slide piece 6, the push button 3 is pushed in to slide the slide piece 6 in the outward direction of the receiving seat 5, and the push button 3 is pushed. After the pushing operation of 3 is released, the slide piece operating mechanism 1 that allows the slide piece 6 to be returned by the spring mechanism 10 and the latch 13 provided at the position projecting outward from the opening 12 at the side of the box body 11 are provided. The latch operation mechanism 2 allows the latch 13 to be moved / restored by the pressing force associated with the operation of the piece 6 and the spring mechanism 14. The latch operation mechanism 2 has a box 11 and a push button 40.
Is provided so as to be movable / returnable by a spring mechanism 41, and the push button 40 is a support rod 25 of the latch 13 protruding from the box 11 at the push button 40 returning position in the outward direction of the box 11.
Has a stopper portion 42 for preventing the backward movement of the slide rod and a groove portion 43 for permitting the backward movement of the support rod 25 of the latch 13 at the movement stop position of the push button 40 on the inner side of the box body 11. 15 to the wall 16 side of the door opening A, the latch operating mechanism 2 to the door 18 side via the mounting plate 17, or the mounting positions of the slide piece operating mechanism 1 and the latch operating mechanism 2 are opposite to the above. , The push button 3 is pushed, the slide piece 6 is brought into contact with the latch 13, the latch 13 entering the inside of the seat 5 is pushed out of the seat 5, and the closed door 18 is opened. , Door 1
After opening 8, the end of the support rod 25 of the latch 13 protruding from the box 11 is supported by the stopper portion 42 of the push button 40 to prevent the support rod 25 from retracting, and the door 18 is unexpectedly closed / locked. It is configured by preventing. For the automatic opening of the door after unlocking, the actual fair is 2-43183.
The technology of No. 2 and Jitsuhei 2-43184 can be used.

The door locking device of the present invention comprises a push button 40.
A flange portion 45 is provided on the push portion 44 and an end portion on the opposite side of the push portion 44, and a spring 41 a is interposed between the inner end of the push button 40 and the plate 46 to push up the push button 40. it can.

In the door locking device of the present invention, the slide piece actuating mechanism is provided with the push button 3 and the flange portion 21 at the end opposite to the push portion 20 and the inner end of the push button 3. The push button 3 is pushed up by interposing the spring 4a with the lid 22, and the spring 10a is intervened between the spring receiving portion 23 provided on the slide piece 6 and the spring receiving portion 24 provided on the receiving seat 5. The slide piece 6 can be moved and returned.

In the door locking device of the present invention, the latch actuating mechanism fixes the support rod 25 to the latch 13 and makes the box 11
The support rod 25 is fitted into the support portion 26 provided therein, the spring 27 is interposed between the latch 13 and the support portion 26, and the retaining ring 28 is provided at the end portion of the support rod 25 so that the latch 13
Can be configured to move and return. The support portion 26 can be formed by bending a part of the plate 46 (see FIG. 5).

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described with reference to the drawings. (1) The slide piece operating mechanism 1 will be described with reference to FIGS. 1 and 5. The slide piece operating mechanism 1 has a seat 5,
The push button 3 is provided on the receiving seat 5 so as to be movable / returnable by the spring mechanism 4 in the pushing direction. In addition, the seat 5
A slide piece 6 is provided so as to be slidable along. Sliding of the slide piece 6 is performed by pushing the push button 3 by a cam mechanism 7 formed by an inclined surface 8 provided at the end of the push button 3 and a guide 9 provided on the slide piece 6. 6 slides outward of the seat 5.
As the guide 9, a roller is shown in the embodiment, but the same operation can be performed with an inclined guide or an R-shaped guide. After releasing the pushing operation of the push button 3, the slide piece 6 can be returned by the spring mechanism 10. (2) Next, the latch operating mechanism 2 will be described. The latch actuating mechanism 2 has a box body 11 and an opening 1 at a side portion of the box body 11.
A latch 13 is provided at a position projecting outward from 2. The latch 13 can be moved / returned by the pressing force associated with the operation of the slide piece 6 and the spring mechanism 14. In the latch actuating mechanism 2, a push button 40 is provided on the box body 11 so as to be movable and returnable by a spring mechanism 41.
Is a stopper portion 42 that prevents the support rod 25 of the latch 13 projecting from the box 11 from retracting at the push button 40 returning position of the box 11 and the push button 40 movement stop position inside the box 11. 2 (see FIG. 2), the groove 43 for allowing the support rod 25 of the latch 13 to retract. The push button 40 is provided with a push portion 44 and a flange portion 45 at the end opposite to the push portion 44, and the spring 41 a is interposed between the inner end of the push button 40 and the plate 46 so that the push button 40 is pushed up. can do. After releasing the push operation of the push button 40 and opening the door 18, the end portion of the support rod 25 of the latch 13 protruding from the box body 11 is supported by the stopper portion 42 of the push button 40 that has risen and returned, and the support rod is supported. It prevents the rearward movement of 25 and prevents the door 18 from being accidentally closed or locked. (3) The movement of the slide piece operating mechanism 1 and the latch operating mechanism 2 for opening and closing the door 18 will be described with reference to FIGS. (A) In FIG. 1, the door 18 is in the open state, the slide piece 6 is retracted and returned, the latch 13 is returned by the spring mechanism 14 so as to project from the box body 11, and the push button 40 is returned by the spring mechanism. The support rod 25 of the latch 13 is raised and returned by 41 and is supported by the stopper 42 of the push button 40 which is raised and returned by the spring mechanism 41.
It has been prevented from retreating. (B) FIG. 2 shows a state in which the door 18 is partially closed (just before it is completely closed) by pressing the push button 40. Slide piece 6
Remains in the recovered state. When the push button 40 is pushed, the rear portion of the support rod 25 of the latch 13 has a groove portion 43 of the push button 40.
It is retracted and housed inside. (C) In FIG. 3, the door 18 is in the completely closed state, and the slide piece 6 is in the return position. The latch 13 is advanced into the receiving seat 5 of the slide piece operating mechanism 1 and is in a locked state. (D) In FIG. 4, the door 18 is in a half-opened state. The push button 3 is pushed against the force of the spring 10a, the slide piece 6 is moved forward, and the slide piece 6 is brought into contact with the latch 13,
The latch 13 entering the seat 5 is pushed out of the seat 5, and the latch 13 is disengaged from the slide piece operating mechanism 1. As a result, the door 18 shifts to the opening operation,
Returning to the open state of FIG.

In the door locking device of the present invention, as shown in FIG. 1, the slide piece operating mechanism 1 includes a mounting plate 15
The latch actuating mechanism 2 is provided on the wall 16 side of the door opening A via the mounting plate 17 and on the door 18 side via the mounting plate 17. Further, the mounting positions of the slide piece operating mechanism 1 and the latch operating mechanism 2 are reversed, and the slide piece operating mechanism 1 is attached to the door 18 side via the attaching plate 15, and the latch operating mechanism 2 is attached to the attaching plate 17. It may be provided on the wall 16 side of the door opening portion A via.

Referring to FIG. 5, the slide piece operating mechanism 1,
A case where the latch operating mechanism 2 is attached to the wall 16 and the door 18 will be described. In advance to the wall 16 and the door 18 (see FIG. 1),
The mounting plate 15 and the mounting plate 17 are attached, respectively. The engaging portion 32 of the mounting plate 15 is engaged with the locked portion 33 of the lid 22 of the slide piece operating mechanism 1, and the mounting portion 34 of the mounting plate 15 is fixed to the seat 5 with the screw 35. Similarly, the engaging portion 36 of the mounting plate 17 is engaged with the locked portion 37 of the plate 46 of the box body 11 of the latch actuating mechanism 2, and the mounting portion 38 of the mounting plate 17 is attached to the box body 11 with the screw 39. Fix it.

In FIGS. 1 and 5, the push button 3 of the slide piece actuating mechanism 1 is provided with a pushing portion 20 and a flange portion 21 at the end opposite to the pushing portion 20. Push button 3
The push button 3 is pushed up by interposing the spring 4a between the inner end of the and the lid 22. The flange portion 21 of the push button 3 prevents the push button 3 from popping out of the seat 5 and coming off. Further, the spring 10a is interposed between the spring receiving portion 23 provided in the slide piece 6 and the spring receiving portion 24 provided in the seat 5, and the slide piece 6 moved by pushing the push button 3 can be restored. .

1 and 5, the support rod 25 is fixed to the latch 13 of the latch actuating mechanism 2, and the support rod 25 is attached to the box body 1.
It is fitted into the support portion 26 provided in the inside 1. A spring 27 is interposed between the latch 13 and the support portion 26 to apply an outward force to the latch 13. On the other hand, the retaining ring 2 is attached to the end of the support rod 25.
8 is fixedly provided, and the retaining ring 28 serves as a stopper. By this mechanism, the latch 13 that is normally positioned to project from the box body 11 can be moved by the action of the slide piece 6 and can be restored by releasing the action of the slide piece 6.

[0014]

The door locking device of the present invention can achieve the following effects. (1) In the conventional door locking device, when locking / unlocking, two operations (steps) of pinching, turning, or pinching and horizontally shifting the lock are required. Only, it is possible to unlock by a single operation of pressing the push button, and the locking / unlocking operation becomes dramatically simple and quick. (2) When the door of a toilet or the like is opened and is unused and unattended, it is possible to prevent the door from being closed and locked due to an unexpected situation. (3) Further, not only the operation is simplified, but also the hand power required for the operation is reduced, so that it is excellent in adaptability to a person who does not put a burden on his / her hand, such as an elderly person. Suitable for homes, hospitals, etc. (4) Furthermore, when unlocking, it is possible to operate by one-touch push operation, so users who do not like to touch the push button directly can unlock it by indirect contact. Yes, it is more hygienic. (5) The structure is simple, and it is possible to easily install the door locking device of the present invention in place of the existing door locking device.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of a door locking device of the present invention, in which the door is in an open state.

FIG. 2 is a view showing an embodiment of the door locking device of the present invention, in which the door is partially closed (immediately before complete closing).

FIG. 3 is a view showing an embodiment of a door locking device of the present invention, in which the door is completely closed.

FIG. 4 is a diagram showing an embodiment of a door locking device of the present invention, in which the door is in a half-opened state in which it is in an open state.

FIG. 5 is a perspective view in which the door locking device of the present invention is disassembled into each component.

FIG. 6 is a diagram illustrating a conventional technique (prior application).

[Explanation of symbols] 1 Slide piece operating mechanism 2 Latch actuation mechanism 3 push buttons 4 Spring mechanism 5 seat 6 slide pieces 7 Cam mechanism 8 inclined surface 9 Information 10 Spring mechanism 11 boxes 12 openings 13 Latch 14 Spring mechanism 15 Mounting plate 16 walls 17 Mounting plate 18 doors 20 push part 21 Flange 22 Lid 23 Spring receiving part 24 Spring receiving part 25 support rods 26 Support 27 spring 28 retaining ring 32 Locking part 33 Attached part 34 Attachment 35 screws 36 Locking part 37 Attached part 38 Attachment 39 screws 40 push button 41 Spring mechanism 42 Stopper part 43 Groove 44 Pusher 45 Flange 46 plates

Claims (5)

[Claims] 1. A push button (3) is provided on a seat (5) so that the push button (3) can be moved and returned by a spring mechanism (4) in the pushing direction, and slides in the seat (5) along the seat (5). A cam mechanism (7) provided with a slide piece (6) movably formed by an inclined surface (8) provided at the end of the push button (3) and a guide (9) provided on the slide piece (6). By pushing the push button (3), the slide piece (6) slides outward of the seat (5), and after the push button (3) is released from the pushing operation, the slide piece (6) is moved by a spring mechanism. (10) The slide piece actuating mechanism (1) that can be returned by the slide piece (1) and the latch (13) at a position protruding outward from the opening (12) at the side of the box body (11) are provided. 6) The pressing force associated with the operation of 6) and the spring mechanism (14) cause the latch (1 3) is composed of a latch actuating mechanism (2) that can be moved / returned. In the latch actuating mechanism (2), a push button (40) can be moved / returned to a box (11) by a spring mechanism (41). The push button (40) is provided so as to push the push button (4) outward of the box body (11).
0) A stopper portion (42) that prevents the support rod (25) of the latch (13) protruding from the box body (11) at the return position, and a push button (4) inside the box body (11).
0) Support rod (2) of the latch (13) at the movement stop position
5) A door locking device having a groove (43) that allows the retreat of 5). 2. A push button (3) is provided on a seat (5) so as to be movable and returnable by a spring mechanism (4) in the pushing direction, and slides in the seat (5) along the seat (5). A cam mechanism (7) provided with a slide piece (6) movably formed by an inclined surface (8) provided at the end of the push button (3) and a guide (9) provided on the slide piece (6). By pushing the push button (3), the slide piece (6) slides outward of the seat (5), and after the push button (3) is released from the pushing operation, the slide piece (6) is moved by a spring mechanism. (10) The slide piece actuating mechanism (1) that can be returned by the slide piece (1) and the latch (13) at a position protruding outward from the opening (12) at the side of the box body (11) are provided. 6) The pressing force associated with the operation of 6) and the spring mechanism (14) cause the latch (1 3) is composed of a latch actuating mechanism (2) that can be moved / returned. In the latch actuating mechanism (2), a push button (40) can be moved / returned to a box (11) by a spring mechanism (41). The push button (40) is provided so as to push the push button (4) outward of the box body (11).
0) A stopper portion (42) that prevents the support rod (25) of the latch (13) protruding from the box body (11) at the return position, and a push button (4) inside the box body (11).
0) Support rod (2) of the latch (13) at the movement stop position
5) has a groove (43) for allowing the retreat, and the slide piece operating mechanism (1) is attached to the wall (16) side of the door opening A via the mounting plate (15), and the latch operating mechanism (2). ) Is provided on the door (18) side via the mounting plate (17) or the slide piece actuating mechanism (1) and the latch actuating mechanism (2) are installed on the opposite side to the push button (3). , The slide piece (6) is brought into contact with the latch (13), the latch (13) entering the seat (5) is pushed out of the seat (5), and the door (18) is being closed. After opening the door (18), the end of the support rod (25) of the latch (13) protruding from the box (11) is supported by the stopper portion (42) of the push button (40). Prevents the support rod (25) from retreating and accidentally closes the door (18).
A door locking device characterized by being designed to prevent locking. 3. The push button (40) is provided with a push portion (44) and a flange portion (45) at an end opposite to the push portion (44), and an inner end of the push button (40) and the plate (46).
A push button (4
0) is pushed up, The door locking device according to claim 1 or claim 2. 4. The push button (3) is provided with a pressing portion (20) and a flange portion (21) at an end opposite to the pressing portion (20), and an inner end of the push button (3) and a lid (22). ) With a spring (4a) interposed therebetween to push up the push button (3), and a spring receiving portion (2) provided on the slide piece (6).
3. The slide piece (6) is moved and returned by interposing a spring (10a) between the spring (3) and a spring receiving portion (24) provided on the receiving seat (5). Or the door locking device according to claim 3. 5. The support rod (25) is fixed to the latch (13), and the support rod (25) is fitted into the support portion (26) provided in the box body (11), and the latch (13) and the support portion are provided. (26)
A spring (27) is interposed between the support rod (2)
5. The door locking device according to claim 1, claim 2, claim 3, or claim 4, wherein a retaining ring (28) is provided at the end of (5) so that the latch (13) can be moved and returned.