JP2556910Y2 - Door locking and locking device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a door in a storage or the like, in which a door is locked by latches on upper and lower edges of a door of a cabinet body and can be locked.

[0002]

2. Description of the Related Art As a locking device for a door of a storage box or the like, a device in which a locking device can be attached to a door very easily by a holding tube having a complicated structure and an operating rod has been known. (See Japanese Utility Model Publication No. 2-6207).

[0003]

SUMMARY OF THE INVENTION However, in the above-mentioned prior art, although the door is locked,
Since it cannot be seen from the front, there has been a problem that the engagement piece may be damaged by trying to open it forcibly. In view of this point, the present invention has a simple structure, with a long hole in the handle cover, and an actuator that can move up and down, which is easy to assemble and process. It is an object of the present invention to provide a locking and locking device for a door.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and in a locking device for a door, a pull cover is fixed to the back side of the door, and the pull cover is attached to the cover. A holding tube having a square hole in the direction and an engaging piece protruding at an intermediate portion of the outer peripheral surface is vertically installed rotatably, and an operating rod having a square cross section is penetrated and held in the square hole. A latch fixed to the end of the rod is spring-loaded with a return spring to lock the hole of the engaging hole formed in the frame plate of the cabinet door, and a handle opening and a handle plate are provided on the front surface of the door. A handle plate having a portion is provided, and on the back surface of the handle plate portion, the engaging portion of the holding tube is pressed by the pressing portion at the tip to rotate the operating rod to release the latch. A pressing block is slidably provided, and a lock is provided on the pull plate, and the lock is engaged with an operating tool to rotate the operating rod. Provided the operating pieces so as to stop, on the inside of the pull tab cover, the bent pieces are formed at the lower end,
The upper end has a bent receiving part for attaching a spring, one side has an appropriate number of notches, and the other side has an appropriate number of long holes that can be moved up and down. When unlocking the lock, press the push
The operating tool is moved up and down so that the projection of the lock can be engaged, and when locked , the operating tool is moved up and down so that the projection of the pressing block cannot be engaged with the notch of the operating tool , Further, in the above locking and locking device for a door, a configuration is employed in which an engagement piece is protruded from an upper portion of an outer peripheral surface as a holding tube vertically installed rotatably on a puller cover.

[0005]

[Function] The present invention adopts the above configuration,
The operating tool is made of a flat plate, which is easy to process, and even if the operating tool is moved upward by locking and the pressing block is pushed, the cutout of the operating tool and the projection of the pressing block match. Therefore, the operation tool cannot be pushed and the latch is held in a locked state.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings. In FIG. 1, 1 is a cabinet body, 2,
Reference numeral 2 'denotes a double door, and a pull cover 4 made of a synthetic resin is desirably held between the bent portion 3' at the open end of the front plate and the door back plate 5 on the back side of the door plate 3 of the right door 2. Is attached,
The handle cover 4 has a square hole 6a in the longitudinal direction as shown in FIG.
And a holding tube 6 made of synthetic resin having an engaging piece 6b protruding in the middle of the outer peripheral surface is rotatably supported by flange portions 6 'and 6 "supported by upper and lower plate portions of the puller cover 4, respectively. An operating rod 7 having a rectangular cross section is penetrated and held in its square hole 6a, and latches 8 are fixed to upper and lower ends of the operating rod 7 (see FIG. 1). Are repelled by a return spring 9 wound around the holding tube 6, and are locked to the edges of the engagement holes 10, 10 formed in the frame plates 1a above and below the doorway of the cabinet body 1 (FIG. 4). reference).

Next, as shown in FIG. 2, FIG. 3, and FIG. 6, the operating tool 17 forms a bent piece 19 by providing a relief portion 21 at the lower end of the plate material so as not to collide with the holding tube 6. The upper end is partially cut so that a spring 25 can be attached to form a bent receiving portion 23, an appropriate number of notches 20 are formed on one side, and the other side can be moved up and down. An appropriate number of long holes 22 are formed. A spring 25 is attached to the bent receiving portion 23 at the upper end,
Attachment 2 such as a screw attached to puller cover 4 in slot 22
4 is engaged so that it can move up and down. The notch 20 on one side is adapted to engage with the protrusion 26 of the pressing block 14 for releasing the latch, and when not locked, the operating tool 17 is always located below by the spring 25. Then, the projection 26 of the pressing block 14 for releasing the latch engages with the notch 20 and enters the notch 20, so that the pressing block 14 moves in the lateral direction. Therefore, the pressing portion 14a
Since the engaging piece 6b of the holding tube 6 is pressed and rotated, the latches 8 attached to the upper and lower sides of the holding tube 6 are rotated and released. However, when locked, the operation piece 15a of the lock 15 rotates as shown by the arrow C, and the lower end bent piece 19
Is pushed upward. The upward movement of the operating tool 17 causes the notch 20 formed on one side to move upward, so that the pressing block 14 can be moved laterally.
Since the notch 20 has been moved upward, the projection 26 of the pressing block 14 hits and the pressing block 14
Can not be moved. Further, the projecting piece 27 provided on the upper part of the operating tool 17 is engaged with the engaging piece 6d provided on the upper peripheral surface of the holding tube 6, and functions as a stopper at the time of locking. As a result, the latch 8 does not rotate, so that the locked state is maintained. Reference numeral 18 denotes a projection-shaped stopper for the operating tool provided on the puller cover 4.

In FIGS. 2, 4 and 5, reference numeral 11 denotes a latch receiver made of synthetic resin, which is attached to bent grooves on the upper and lower sides of the door 2.
6c and 12 are the lower part of the holding tube 6 and the puller cover 4 respectively.
, And a rotation stopper of the holding tube 6 provided on the inner surface of the puller cover 4 is not shown because it is conventionally known. Further, as shown in FIG.
The handle cover 4 is locked to the bent portion of the back plate by the bent portion 4d. The latch receiving member 11 has one side edge engaged with the upper edge of the bent portion 3 ′ at the open end of the door surface plate 3 of the door 2, and a locking projection 11 b projecting from the other side. It is locked and attached to an engaging hole 3a provided in the upper bent plate portion 3 ″ of the door surface plate 3 (see FIG. 5). Reference numeral 13 denotes a handle opening attached to the door surface plate 3 in the handle cover 4. 13a and handle plate 1
3b, a fitting plate made of a synthetic resin having a hole 3b is engaged with a hole of an opening formed in the door surface plate 3 with a mounting groove 13c at an edge of the pulling plate 13 (see FIG. 3), and provided at an appropriate position on the edge. Locking projection 13d
It is locked and installed. 14 is a pull plate 13
An approximately square latch release pressing block made of a synthetic resin provided therein and slidably fitted between the upper wall 13e of the pull plate 13 and the back surface of the handle plate portion 13b and the inner wall 4c of the pull cover 4. The pressing portion 14a at the tip engages with the engaging piece 6b at the intermediate portion of the holding tube 6, and the latch 8 is engaged with the engaging hole 10 of the cabinet body 1 so that the front surface of the pressing block 14 (the door front plate 3) can be used. The groove edge 14c at the tip of the concave groove 14b provided on the
3 and the rear end of the pressing block 14 extends to almost the same position as the inner edge of the handle plate 13b (see FIG. 3). Reference numeral 15 denotes a lock provided at a lower portion of the pull plate 13, which is stored in a storage chamber surrounded by the side wall 13 f of the pull plate 13 and the latch release pressing block 14. Since the lower end bent piece 19 is pushed up to prevent the pushing of the latch release pressing block 14 and, as a result, the rotation of the operating rod 7 is prevented, the state becomes the same as the locked state. When the door 2 is closed, the inner edge 16 of the left door 2 'in FIG. 1 enters the inside of the right door 2, so that only the right door 2 is locked, and the left door 2' is also locked. Is done.

Next, the operation will be described with reference to FIG. 3. Since this door locking / locking device has the structure as described above, the pressing block 1 is held by a finger inserted through the pull opening 13a.
4 is pressed laterally (in the direction of arrow A), the engaging piece 6b is pressed by the pressing portion 14a at the tip, and the holding tube 6, and thus the operating rod 7, rotates in the direction of arrow B against the return spring 9. Then, the upper and lower latches 8 and 8 are rotated to move the cabinet body 1
The door 2 can be opened by pulling the handle plate portion 13b toward the user. When the pressing block 14 is pushed in, the rear edge 14 d of the concave groove 14 b is stopped by the front inner edge of the pull plate 13. The engagement piece 6b of the holding tube 6
Are protruded in an inclined manner in the direction of the pressing block 14,
The latch 8 rotates as much as possible while being pressed by the pressing block 14 and is provided so as to be guided close to the inside of the door surface plate 3 of the door 2. Furthermore, when the finger is released from the pressing block 14, the return spring 9 returns to the original position. To close door 2, simply open door 2
By simply turning the latch inward, the inclined back surface 8 ′ of the latch 8 engages with the hole edge of the engagement hole 10, and the latch 8 is rotated against the return spring 9 to pass through the engagement hole 10. After passing through, the spring is returned by the return spring 9 and again locked on the edge of the engagement hole 10 (see FIG. 4). Further, the operating piece 15a is rotated by the lock 15 as shown by the arrow C to push up the lower end bent piece 19 of the operating tool 17 against the upper spring 25, whereby the operating tool 17 is moved upward, and the pressing block 14 is moved. Cannot be pressed, and the door 2 becomes the same as the locked state (see FIG. 2). In this case, the force for pressing the pressing block 14 in the lateral direction is weaker than the force for pulling the pull lever toward the user, as compared with the method of releasing the latch 8 by pulling the pull lever or the like. Even if the pressing block 14 is pressed, there is no danger that the component will be damaged due to excessive force. Further, while the pressing block 14 does not move, the handle plate portion 13b is not sufficiently engaged and cannot be pulled. Therefore, there is no possibility of damaging the handle plate portion 13b, and it is extremely safe. The lock 15 may be of a type in which the actuating piece moves laterally and protrudes by locking to move the actuating tool 17 upward so that the pressing block 14 cannot be pushed. The latch 8 may be provided only on one of the upper and lower sides of the door 2 depending on the size of the cabinet.

[0010]

According to the present invention, the following effects can be obtained based on the above configuration. (1) Since the actuator is made of a flat plate, processing and manufacturing are simple. (2) Since the door can be securely and securely locked and locked, the practical effect is large.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a cabinet showing one embodiment of the present invention.

FIG. 2 is a rear view of the puller operating portion in the embodiment.

FIG. 3 is a sectional view taken along line XX in FIG. 2;

FIG. 4 is a cross-sectional plan view of the latch operating portion in the embodiment.

FIG. 5 is a rear view of the latch operating section in the embodiment.

FIG. 6 is a perspective view of the operating tool in the embodiment.

[Explanation of symbols]

1 cabinet body 2, 2 'door 3 door door plate 4 handle cover 5 door back plate 6 holding tube 7 operating rod 8 latch 9 return spring 10 ‥ engagement hole 11 ‥‥ latch receiver 12 ‥‥ hook 13 ‥‥ puller plate 14 ‥‥ press block 15 ‥‥ lock 16 ‥‥ inner edge 17 ‥‥ operator 18 ‥‥ operator stopper 19 ‥ Folded piece 20 ‥‥ Notch 21 ‥‥ Relief part 22 孔 Long hole 23 ‥‥ Bend receiver 24 Mounting bracket 25 Spring 26 ‥‥ Projection 27 ‥‥ Projection

Claims (2)

(57) [Scope of request for utility model registration] 1. A pull cover 4 is fixedly provided on the back side of the door 2,
The puller cover 4 has a rectangular hole 6a in the longitudinal direction, and a holding tube 6 having an engaging piece 6b protruding at an intermediate portion of the outer peripheral surface is vertically installed rotatably. The rectangular hole 6a has a rectangular cross section. And the latch 8 fixed to the end of the operating rod 7 is resiliently resiliently moved by a return spring 9 so that the frame plate 1a of the door of the cabinet body 1 is opened.
A hook plate 13 having a handle opening 13a and a handle plate portion 13b is provided on a front surface of the door 2 and a rear surface of the handle plate portion 13b. A pressing block 14 that presses the engaging piece 6b of the holding tube 6 with the pressing portion 14a at the tip to rotate the operating rod 7 to release the latch 8 is provided slidably.
The pull plate 13 is provided with a lock 15, and the lock 1 is actuated by locking.
An actuating piece 15a is provided to engage with the actuating member 7 to suppress the rotation of the actuating rod 7. A bent piece 19 is formed at the lower end inside the puller cover 4, and a spring 25 is attached to the upper end. A bending receiving part 23 is formed, an appropriate number of notches 20 are formed on one side, and a vertically movable movable tool 17 having an appropriate number of elongated holes 22 formed on the other side is formed. At the time of mounting and unlocking , the notch 20
Actuator so that protrusion 26 of pressing block 14 can be engaged
17 moves up and down, so that the projection 26 of the pressing block 14 cannot be engaged with the notch 20 of the operating tool 17 during locking .
A locking device for a door, wherein the actuating tool 17 is configured to move up and down . 2. A door locking and locking device according to claim 1, wherein an engaging piece (6d) protrudes from an upper portion of an outer peripheral surface of the holding tube (6) vertically rotatably provided on the handle cover (4). .