JPH0519478Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a locking device for a door in a storage warehouse, etc., in which the door is locked with a latch at the upper and lower edges of the doorway of the cabinet body, and is also locked. .

Next, the details will be explained with reference to the illustrated embodiment. In FIG. 1, 1 is a cabinet body, 2,
2' is a double door, and a pull cover 4, preferably made of synthetic resin, is attached to the back side of the front plate 3 of the right door 2, held between the bent part 3' at the open end of the front plate and the back plate 5. The handle cover 4 has a square hole 6a in the longitudinal direction as shown in FIG. A holding tube 6 made of synthetic resin, each having a joint piece 6c protruding therefrom, is rotatably installed vertically with flanges 6' and 6'' supported by the upper and lower plate parts of the pull cover 4, respectively, and the square hole 6a The operating rod 7 has a square cross section.
is held through, and latches 8, 8 are fixedly installed at the upper and lower ends of the operating rod 7, and the latches 8 are urged by a return spring 9 wound around the holding tube 6 to open the upper and lower parts of the doorway of the cabinet body 1. Engagement hole 1 bored in frame plate 1a
It is locked to the hole edges of 0 and 10. (Figure 4). In the figure, reference numeral 11 indicates a latch receiver made of synthetic resin attached to the bending groove at the top and bottom of the door 2, and reference numbers 6d and 12 refer to return springs 9 provided at the lower part of the holding tube 6 and the pull cover 4, respectively.
The latch piece 9' is a rotation stopper for the holding tube 6 provided on the inner surface of the handle cover 4, and is also used in FIGS. 3A and 3B.
In the figure, reference numeral 4' denotes a locking protrusion that projects from the bent portion of the pull cover 4 and is locked in an engaging hole drilled in the bent portion 5' of the back plate 5. The latch receiver 11 has one side edge attached to the bent portion 3' of the open end of the front plate 3 of the door 2.
A lock 11a is attached to the upper edge, and a locking convex portion 11b protruding from the other side is locked to an engagement hole 3a provided in the upper bent plate portion 3'' of the top plate 3. .

Reference numeral 13 denotes a pocket member made of synthetic resin, which is attached to the door front plate 3 adjacent to the holding tube 6 in the handle cover 4, and has a handle opening 13a and a handhold plate portion 13b adjacent to the handle opening. A mounting groove 13c on the edge of the pocket member 13 is attached to the hole edge of the opening drilled in 3.
(Fig. 3B), and is attached by being locked to a locking protrusion 13d provided at an appropriate position on the edge.

Reference numeral 14 denotes a substantially rectangular unlatching press block made of synthetic resin provided inside the pocket member 13, and is pressed against the upper wall 13e and partition wall 13f of the pocket member 13, the back surface of the hand plate portion 13b, and the inner wall 4 of the handle cover 4.
The engagement convex portion 1 at the tip is slidably fitted between the
4a is an engagement piece 6b for unlocking the upper part of the holding tube 6
When the latch 8 is engaged with the engagement hole 10 of the cabinet body 1, the groove edge 14 at the tip of the concave groove 14b provided on the front surface (top plate 3 side) of the press block 14 is engaged.
c is engaged with the outer edge of the pocket member 13, and the rear end of the pressing block 14 extends to approximately the same position as the inner edge of the handhold plate portion 13b, thereby concealing the handhold plate portion 13b. The clues are becoming impossible.
(Figure 3A).

15 is a lock provided at the bottom of the pocket member 13;
Pocket member partition walls 13f, 13g and side wall 1
3h, and when locked, the actuating piece 15a rotates and engages with the locking engagement piece 6c at the bottom of the holding tube 6 to prevent the actuating rod 7 from rotating. It is now possible to lock it. When the door is closed, the inner edge 16 of the door 2' on the left side in Figure 1 enters the inside of the door 2 on the right side, so just by locking the door 2 on the right side, the door 2' on the left side is also locked. be stopped.

Since this locking device has the above-mentioned structure, use the finger inserted through the handle opening 13a to press the press block 14 in the direction of the lock release engagement piece 6b of the holding tube 6 (in the direction of arrow A). Then, the engagement piece 6b is pressed by the engagement protrusion 14a at the tip, and the holding tube 6, and thus the operating rod 7, moves in the direction of arrow B against the return spring 9.
direction (Fig. 3A), the upper and lower latches 8, 8 rotate accordingly, and are disengaged from the engagement hole 10 of the cabinet body 1, and at the same time, the hidden handhold plate portion 1
3b appears by the movement of the pressing block 14, the door 2 can be opened by pulling this handhold plate portion 13b toward you. When the pressing block 14 is pushed in, the rear edge 14d of the groove 14b touches the pocket member 1.
It is stopped by being locked to the front inner edge of No.3. As shown in FIG. 3A, the engagement piece 6b for releasing the lock of the holding tube projects obliquely in the direction of the pressing block 14, and is substantially perpendicular to the engagement protrusion when pressed by the block 14. The engaging convex portion is provided close to the outer circumferential surface of the holding tube 6. Therefore, when the pressing block is pressed, the engagement protrusion 14a is prevented from escaping forward (toward the top plate 3), and a relatively wide rotation angle of the latch can be obtained with respect to the movement of the pressing block 14. ing. When the press block 14 is released from the press block 14, it returns to its original position by the return spring 9.

When closing the door 2, simply rotate the door 2 inward so that the inclined back surface 8' of the latch 8 engages with the edge of the engagement hole 10, and the latch 8 is returned and rotated against the spring 9. After passing through the engaging hole 10, it is returned by the return spring 9 and is locked to the edge of the engaging hole 10 again.

Further, if the operating piece 15a is rotated by the lock 15 and the lower locking engagement piece 6c is locked, the pressing block 14 cannot be pushed and the door 2 is locked. In this case, the pressure block 1
4 in the lateral direction is weaker than the force pulling the pull lever toward you, so even if you press the pressing block 14 without noticing the lock, there is no risk of excess force and damage to the parts. Also, press block 1
While the handle 4 is not moving, the handle plate 13b is not touched and cannot be pulled, so there is no risk of damaging the handle plate 13b, making it extremely safe. The lock 15 may be of a type in which when the lock is locked, the actuating piece moves in the lateral direction and protrudes to lock the engaging piece 6c.

As mentioned above, the door locking device of the present invention has an extremely simple structure with a small number of parts, and is extremely simple to assemble and easy to manufacture. 13b is normally hidden by the pressure block 14 and cannot be used as a handhold, but when the pressure block 14 is moved, the handhold plate portion 13b appears and it is possible to use the handhold. Therefore, when the door is locked, Even if you try to open the door carelessly, the handle plate part 1
3b cannot be pulled, and has a practical effect such as completely preventing damage to the handle plate portion 13b, the latch 8, the frame plate 1a of the doorway of the main body 1, etc. The latch 8 may be provided on either the upper or lower side of the door 2 depending on the size of the cabinet.

7A and 7B show another embodiment of the present invention, in which the operating rod 7 is returned by a spring to move the rotary latch 8 into the engagement hole 10 of the cabinet body 1 in the opposite direction to the above example. The retaining tube 6 is engaged with the hole edge on the opposite side, and an engaging piece 6b for unlocking and an engaging piece 6c for locking the retaining tube 6 are provided on the circumferential surface opposite to the above example, and each is pressed. The engaging protrusion 14a of the block 14 and the actuating piece 15a of the lock 15 are engaged, and the actuating rod 7 is rotated in the direction opposite to the above example (arrow B') in response to the pressure of the pressing block 14 in the direction of arrow A. The other functions and effects are exactly the same as in the above example. In this case, it is convenient to form the tip of the press block into a bifurcated shape and provide the engaging portions 14 at the front and back, so that this press block can also be used in the above example.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is an external perspective view of the cabinet, the following is an enlarged view, FIG. 2 is a rear view of the pull actuating section, and FIG. 3A is a cross section taken along the line X-X in FIG. 2. Figure 3B is a sectional view taken along the Y-Y line in the same figure, Figure 4 is a cross-sectional plan view of the latch operating section, Figure 5 is a rear view of the same, Figure 6 is a perspective view of the holding tube, Figures 7A and 7B. Figures are Figures 3A and 3B above, respectively.
It is a cross section showing another example corresponding to the figure. 1... Cabinet body, 2, 2'... Door, 3
...Door front board, 4...Handle cover, 5...Door back board,
6... Holding tube, 7... Operating rod, 8... Latch, 9
... Return spring, 10 ... Engagement hole, 11 ... Latch receiver, 13 ... Pocket member, 14 ... Pressing block, 15 ... Lock.

Claims (1)

[Scope of utility model registration request] A pull cover 4 is fixedly installed on the back side of the door 2, and the pull cover 4 has a square hole 6a in the longitudinal direction, and an engagement piece 6b for unlocking and an engagement piece 6c for locking are provided on the top and bottom of the outer peripheral surface.
A holding tube 6 with a projecting structure is rotatably installed vertically, an operating rod 7 having a square cross section is passed through and held in the square hole 6a, and a latch 8 fixed to the end of the operating rod 7 is attached with a return spring 9. At the same time, the door 2 has a pull opening 13a and a pull opening 13a on the front side of the door 2 adjacent to the holding tube 6. A pocket member 13 having a handle plate portion 13b adjacent to the handle opening 13a is provided,
On the back side of the handhold plate portion 13b, there is an engaging convex portion 1 at the tip.
4a, the rear end of the pressing block 14 is extended to approximately the same position as the inner edge of the handhold plate part 13b, so that the handhold plate part 13b is hidden and is slidable so that the handhold is disabled. The engaging convex portion 14a is engaged with the unlocking engagement piece 6b of the holding tube 6, and the handle opening 1 of the pocket member 13 is disposed horizontally.
By pressing and moving the pressing block 14 in the direction of the unlocking engagement piece 6b using the finger inserted from the lock release engagement piece 6b,
The operating rod 7 is rotated via the lever b to release the latch 8, and the handhold plate portion 13b is exposed so that the handhold can be placed on the pocket member 13.
The door is also provided with a lock 15 and an actuation piece 15a that engages with the locking engagement piece 6c of the holding tube 6 to prevent rotation of the actuation rod 7. locking device.