JP2590998Y2 - Door 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 an improvement in a door locking device for storage furniture such as lockers used in schools and the like.

[0002]

2. Description of the Related Art It is very common to use a cylinder lock as a door locking device for storage furniture such as a locker.

[0003]

[Problem to be solved by the invention] When a locker equipped with a cylinder lock is used in a school, students and students before graduation may make duplicate keys for the cylinder lock, and illegally use it after graduation. Occasionally, a security problem occurred. This problem can also occur with hospital patient lockers.

[0004] In order to solve the above-mentioned inconvenience, changing the locker to a cylinder lock with a different key each time the locker user changes is effective in crime prevention, but it is troublesome and requires a large amount of cost, which is not preferable. .

[0005] As another means, it is conceivable to use a so-called ordinary padlock using a conventional latch, a U-shaped or annular bracket and a padlock as a locker of the locker.

According to this padlock, the padlock can be changed as necessary, which is preferable in terms of crime prevention. However, the metal fittings and the lock protrude from the outer surface of the door, so that the user or a person passing by can wear clothes. It is dangerous because it is caught and the appearance is poor.

The present invention has been proposed to solve all the above-mentioned problems, and a preferred door locking device which prevents theft beforehand, does not catch clothes or the like, and does not deteriorate the appearance of the front of the door. The purpose is to provide.

[0008]

In order to achieve the above object, a door locking device according to the present invention is provided with a concave portion on a free side edge on the outer surface side of a door, and a fixed side frame portion on which the door fits. On the other hand, a locking piece to be engaged or disengaged by a finger is rotatably provided on the inner surface side of the door, and the tip projects into the recess through a through hole provided in the recess in association with the locking piece. A lock hole is provided at the tip of the driven piece for detachably inserting a padlock vine so that the padlock can be accommodated in the recess of the door in the locked state.

[0009]

According to the door locking device of the present invention constructed as described above, in the unlocked state (FIGS. 2 to 4), the locking piece rotatably attached to the inner surface side of the door is: It is in a detached state from the fixed-side frame portion into which the door is fitted, that is, the locker body-side frame portion. In this state, the door can be freely opened and closed by holding the handle of the well-known empty lock device.

In order to lock the door, the door is closed, the knob and other working pieces are held with fingers, and the locking piece is rotated in a predetermined direction (FIGS. 8 and 9).

With the rotation of the locking piece, the driven piece associated therewith is displaced, and the tip of the driven piece projects through the through hole into the insertion door recess.

Here, when a padlock vine is inserted into the hook hole of the driven piece and the padlock is closed (FIGS. 5 to 7), it is determined that the padlock vine prevents reverse movement of the driven piece and is linked to the driven piece. The displacement of the locking piece is also restrained, and the device of the present invention is locked. It is needless to say that in order to unlock this device, the reverse operation is performed.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In the embodiment, the present invention is described as being used for a door of a locker, but the present invention can also be used for doors of other similar storage furniture such as a cabinet or a mail box.

Each member of the device of the present invention is generally made of a metal material such as iron or brass, or a tough synthetic resin material.

FIG. 1 shows an embodiment in which the present invention is applied to a locker used in a school or the like. Reference numeral 1 denotes a locker main body, 1a denotes a fixed side frame portion, that is, a frame portion on the locker main body 1 side, and 2 denotes a locker main body. The door 3 fitted to the frame 1a, 3 is a hinge, 4
Is a concave portion provided rearward on the outer surface side of the door, 5 is a substrate of a locking mechanism, 6 is a knob or other operating piece for operating a locking piece (11) described in detail below, 7 is a driven piece described in detail below, Reference numeral 8 denotes a padlock attached to the driven piece 7, reference numeral 9 denotes a handle of a well-known empty lock,
0 indicates a name tag holder.

Referring to FIGS. 2 to 4 showing the unlocked state of the device of the present invention and FIG.
Is attached to the mounting opening 2a provided in the locker door 2 by welding or any other fixing means.

Although the recess 4 is provided integrally with the substrate 5, it may be provided directly on the door 2. In any case, the recess 4 is provided on the outer surface side of the door 2 so as to protrude rearward.

The locking device of the present invention is provided with a well-known vacant lock device, and the vacant lock device includes a mounting member 30 provided integrally or separately on the base plate 5 and a rotating member mounted on the mounting member 30. It comprises a shaft body 31 freely fitted, a handle 9 and a notch 33 integrally provided on the shaft body 31, and a spring means 34 provided between the mounting member 30 and the shaft body 31. . The handle 9 protrudes from an elongated hole 35 provided in the concave portion 4 so as to fit into the concave portion 4.

In operation of the empty lock device, the handle 9 is operated with fingers against the spring means 34, and the notch 33 is engaged with or disengaged from the frame 1a of the rocker body 1 with the rotation of the shaft 31. In this case, the door 2 is opened and closed, which is no different from the operation of a known empty lock device.

Reference numeral 11 denotes a locking piece for engaging or disengaging the tip portion 11b with the frame portion 1a of the locker main body 1, and sets the door 2 in a locked state or an unlocked state.

The locking piece 11 is connected to an integral knob or other operation piece 6 which also serves as a rotating shaft 12 (see FIG. 10). The coupling means in the illustrated example fits a mounting shaft 14 having an irregular cross section integrally provided at the rear end of the rotating shaft 12 into a mounting hole 11b of a corresponding shape provided at the base end 11a of the locking piece 11. After that, it is fixed with a washer 15 and a screw 16.

The rotary shaft 12 is inserted through a support hole 17 (see FIG. 10) provided in the substrate 5 and is rotatably supported. The rearward escape of the rotating shaft 12 is prevented by a knob, which is located on the outer surface side of the substrate 2, that is, on the outer surface side of the door 2 and formed in a brim shape with respect to the shaft 12, that is, the operation piece 6.

Although the bearing hole 17 is formed in a stepped shape and the knob 6 is fitted therein, this configuration meets the purpose of forming the outer surface side of the door 2 as flat as possible and is preferable. .

If the knob or other operation piece 6 is grasped by a finger and turned in the direction of arrow A, the locking piece 11 fixed to the rotating shaft 12 also turns in the direction of arrow A. When the operation piece 6 is turned in the opposite direction, the locking piece 11 is also turned in the opposite direction.

In FIG. 10, the compression spring 18 and the small ball 18a provided on the base plate 5 and the two small holes 18b provided on the locking piece 11 are used to detect the start and end of the rotation range by the finger. Since it is a click means, further detailed description is omitted here.

A drive pin 19 projects rearward from the base end 11a of the locking piece 11. This drive pin 1
Reference numeral 9 is slidably engaged with an elongated hole 20 provided in the base end portion 7a of the driven piece 7.

The driven piece 7 is movably abutted on the rear surface of the substrate recess 4 and is guided by a guide member 21 fixed in the recess 4 so as to be vertically displaced linearly.

The guide member 21 is fixed to the rear surface of the recess 4 by two mounting pieces 21a and screws 22 which are integrally provided. Reference numeral 21b denotes a guide portion of the guide member 21.

The tip 7b of the driven piece 7 can be inserted into the space of the recess 4 through the through hole 23 provided in the recess 4 by the linear displacement of the driven piece 7.

Further, the leading end 7b of the driven piece 7 is provided with a hook hole 24 through which the temple 8a of the padlock 8 is removably inserted.

In order to displace the locking piece 11 and the driven piece 7 in the unlocking position (FIGS. 2 to 4) to the locking position (FIGS. 5 to 7),
The locking piece 11 is turned in the direction of arrow A by the knob 6 (FIG. 8,
9) The tip is engaged with the fixed side frame 1a. At this time, the driven piece 7 linked to the locking piece 11 is displaced in the direction of the arrow B, and the tip 7 b projects into the recess 4.

As clearly shown in FIG. 7, with the tip 7b of the driven piece 7 protruding into the recess 4 of the door 2,
When the padlock 8 is closed by inserting the vine 8a of the padlock 8 into the padlock 8, the vine 8a of the padlock 8 abuts against the wall surface of the recess 4 even if the driven piece 7 or the locking piece 11 associated therewith is displaced in the unlocking direction. However, the displacement of the driven piece 7 and the locking piece 11 is restricted, and the locked state is maintained.

In the illustrated embodiment, the shape of the locking piece 11 and the driven piece 7 is bent over several steps, but this is formed in relation to peripheral members. It was done. Therefore, the shapes of the locking piece 11 and the driven piece 7 can be any other shapes, and are not limited to the shapes of the embodiment.

In the illustrated example, the pin 19 and the elongated hole 20 are used as the linking means for changing the rotational movement of the locking piece 11 into the linear movement of the driven piece 7, but other linking means may be used. For example, a gear is provided at the base of the locking piece,
This is a means in which a rack is provided on the driven piece and both are engaged with each other.

[0035]

As is apparent from the above description, according to the door locking device of the present invention, in a storage furniture such as a locker, a padlock is hung on a driven piece that protrudes into a recess provided in the door. Because the locking piece linked to the driven piece is kept in the locked state, it can be freely changed to another commercially available padlock with a different key as necessary, such as when the user of the locker changes. This is not only extremely advantageous in preventing theft, but also has the effect of making it possible to change the lock easily and at a low cost as compared with a cylinder lock.

Further, in the present invention, although a padlock is used, the padlock is set in the recess of the door when locked, and does not protrude from the outer surface of the door. There is an advantage that there is no danger of people passing through the clothes catching on the clothes, and the appearance is good.

[Brief description of the drawings]

FIG. 1 is a perspective view of a locker implementing a door locking device of the present invention.

FIG. 2 is a rear view of the unlocked state of the locking device of the present invention taken out from FIG. 1 and enlarged.

FIG. 3 is a side view showing a cutaway portion thereof.

FIG. 4 is a front view thereof.

FIG. 5 is a rear view of a locked state in which the lock device of the present invention is taken out from FIG. 1 and is enlarged.

FIG. 6 is a side view of a part thereof cut away.

FIG. 7 is a front view thereof.

FIG. 8 is a front view of the locking device according to the present invention taken out from FIG.

FIG. 9 is a rear view thereof.

FIG. 10 is an exploded perspective view of the locking state in which the locking device according to the present invention is taken out from FIG. 1 and is enlarged.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Locker 1a Frame part 2 Door 4 Concave part 7 Follower piece 7b Tip part 8 Padlock 8a Vine 23 Through hole 24 Hanging hole

Claims (1)

(57) [Scope of request for utility model registration] 1. A concave portion is provided at a free end on the outer surface side of a door,
A locking piece for manually engaging or disengaging with respect to the fixed side frame portion to which the door is fitted is rotatably provided on the inner surface side of the door, and a tip is provided in the recess in association with the locking piece. A driven piece protruding into the recess through the through hole, and a hook hole through which a padlock vine is removably inserted is provided at the tip of the driven piece so that the padlock fits in the recess of the door in the locked state. A door locking device characterized by the above-mentioned.