JP2556916Y2 - 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, in the present invention, an elongated hole is provided in the handle cover, and a vertically movable operating tool is attached to the elongated hole. An object of the present invention is to provide a door locking / locking device which is easy to assemble and process because it is moved, and which can reliably lock and lock the door.

[0004]

According to the present invention, in order to solve the above-mentioned problems, a pull cover is fixed to the back side of the door, and the pull cover has a rectangular hole in a longitudinal direction, and has an outer peripheral surface. A holding tube having an engaging piece protruding at an intermediate portion thereof is vertically installed rotatably. An operating rod having a square cross section is penetrated and held in the square hole, and a latch fixed to an end of the operating rod is provided. It is resilient by a return spring and is engaged with the edge of the engagement hole formed in the frame plate of the cabinet body door, and a pull plate having a pull opening and a handle plate portion is provided on the front surface of the door. On the back surface of the hanging plate portion, a pressing block that presses the engaging piece of the holding tube with the pressing portion at the tip to rotate the operating rod and release the latch is provided slidably, tablets provided in the lower portion of the tab plate, the pull
On the inside of the hand cover, form a bent piece on the lower side,
Form a protruding piece on the upper side, and a suitable number of notches on one side
Cut and raise the upper part at the bottom of this cutout
To form a cut-and-raised piece.
Attach a vertically movable actuator with a suitable number of
When the lock is locked, the operating piece of the lock rotates and the operating tool is turned off.
Push the raised piece upward, and set the appropriate number of
Appropriate number of protrusions of the pressing block corresponding to the notch
The pressing block is not moved because
A configuration is adopted in which rotation of the operating rod is suppressed .

[0005]

[Function] The present invention adopts the above configuration,
The operating tool is made of a flat plate that is easy to process, and when the door is locked, it is not visible from the front so that it will not be damaged even if you try to open it forcibly. Even if the operating tool was moved upward by the lock and tried to push the pressing block, the operating tool could not be pushed because the notch of the operating tool did not match the protrusion of the pressing block, and the latch was locked. This has the effect of maintaining the 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 FIGS. 2, 3 and 6, the operating tool 17 has a bent piece 19 formed on the lower end side of the plate material and a protruding piece 23 formed on the upper end side thereof. A suitable number of notches 20 are formed in the portion, and at the lower end of the notches 20,
A cut-and-raised piece 21 is formed by cutting and raising the upper part, and an appropriate number of long holes 22 are formed on the other side so as to be vertically movable. A fitting 24 such as a screw attached to the pull cover 4 is engaged with the elongated hole 22 so as to be able to 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 its own weight. 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 1
4a presses and rotates the engagement piece 6b of the holding tube 6, so that
The latches 8 attached to the upper and lower sides of the holding tube 6 are rotated and released. However, when locked, the operating piece 1 of the lock 15
5a rotates as shown by arrow C, and the cutout portion of the operating tool 17
The cut-and-raised piece 21 provided at the lower end of 20 is pushed upward. The upward movement of the operating tool 17 causes an appropriate number of notches 20 formed on one side to move upward, so that even if the pressing block 14 is to be moved sideways, an appropriate number of notches Since the portion 20 has been moved upward, an appropriate number of protrusions 26 of the pressing block 14 corresponding to the cutout portions hit, and the pressing block 14 cannot be moved. Further, the protrusion 2 provided on the upper part of the operating tool 17 is formed by an engagement piece 6 d provided on the outer peripheral surface of the holding tube 6.
3 engages and functions as a stopper during locking. As a result, since the latch 8 does not rotate, it is maintained in the same state as the locked state. 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
A substantially rectangular latch release pressing block made of a synthetic resin provided therein, which is slidably fitted on the inner wall 4c, and the pressing portion 14a at the tip engages with the engaging piece 6b at the intermediate portion of the holding tube 6. When the latch 8 is locked in the engaging hole 10 of the cabinet body 1, the groove edge 14c at the tip of the concave groove 14b provided on the front surface (the door surface 3 side) of the pressing block 14 is outside the edge of the pull plate 13. , And the rear end of the pressing block 14 is
3b extends to almost the same position as the inner edge (see FIG. 3). Reference numeral 15 denotes a lock provided at a lower portion of the puller plate 13, which is stored in the puller cover 4, and when locked, the operating piece 15a rotates,
A cut-and-raised portion provided at the lower end of the cutout portion 20 of the operating tool 17
Since the piece 21 is pushed up to prevent the latch release pressing block 14 from being pushed and, as a result, the rotation of the operating rod 7 is prevented, the locked state is the same. 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 so as to be set at the lower end of the cutout portion 20 of the operating tool 17.
The cutting and raising piece 21 is pushed up, and thereby the operating tool 1
7 moves upward and the pressing block 14 cannot be pressed,
The door 2 is the same as the locked one (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 puller lever toward the user, as compared with the method of releasing the latch 8 by pulling the puller lever or the like toward the user. Even if the pressing block 14 is pressed, there is no possibility that the component may be damaged due to excessive force. In addition, while the pressing block 14 does not move, the handle plate portion 13b is not sufficiently engaged and cannot be pulled, so that there is no possibility of damaging the handle plate portion 13b, which is extremely safe. Further, on the side of the puller cover 4, an operating tool upper limit stop member that stops when the upper end of the operating tool 17 moves up to the upper limit is formed in association with the operating tool 17. Further, the bent piece 19 formed at the lower part of the operating tool 17 is used to lower the operating tool 17 by the operating piece 15a when the lock is rotated when the lock 15 is unlocked. Note that the lock 15 may be of a type in which the operating piece moves laterally and protrudes by the lock to move the operating 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) By forming the cut-and-raised piece on the operating tool, the part could be deleted. (3) Securely and securely lock and lock the door so that it is not visible from the front when the door is locked, so that it will not be damaged even if you try to open it forcibly. Therefore, the practical effect is great.

[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.

[Description of Signs] 1 cabinet body 2, 2 'door 3 door cover 4 door handle 5 door back plate 6 holding tube 7 operating rod 8 latch 9 ‥ Return spring 10 ‥‥ Engagement hole 11 ‥‥ Latch receiver 12 ‥‥ Latch 13 ‥‥ Pull plate 14 ‥‥ Press block 15 ‥‥ Lock 16 ‥‥ Inner edge 17 ‥‥ Actuator 18 ‥‥ Actuator Stopper 19 ‥‥ Bend piece 20 ‥‥ Notch 21 ‥‥ Cut and raised piece 22 ‥‥ Long hole 23 ‥‥ Projection piece 24 ‥‥ Mounting tool 26 ‥‥ Projection

Claims (1)

(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 lock 15 is provided at a lower portion of the pull plate 13 and is provided on the pull cover 4.
On the inside, a bent piece 19 is formed at the lower end side, and the upper end side
A notch 20 is formed on one side
Cut out the upper part at the lower part of this notch 20
Raised to form a cut-and-raised piece 21 and moved up and down on the other side
Vertically movable actuator with a suitable number of elongated holes 22 formed
Attach 17 and lock with the lock 15 to activate the lock 15
The piece 15a is rotated and the cut-and-raised piece 21 of the operating tool 17 is turned.
Is pushed upward, and an appropriate number of cutouts formed in the operation tool 17 are formed.
A suitable number of protrusions of the pressing block 14 corresponding to the
Since the portion 26 does not engage, the pressing block 14
A locking and locking device for a door, wherein the rotation of the operating rod 7 is suppressed without being moved .