JPS5825503Y2 - Locking devices for safes, etc. - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a locking device for a safe or the like that is provided in a public telephone or the like and that can be freely accessed and removed.

Generally, in public telephones, etc., the safe is locked from the side of the safe, parallel to the direction in which the safe is taken in and taken out, in the safe storage section in the case due to space, design, or operational reasons. A device was installed.

In this case, the locking device locks the safe by inserting a lock bar from the safe storage part into a lock hole formed on the side plate of the safe.The lock hole is made larger than the lock bar to account for manufacturing errors. Because the safe had to be drilled, it had the disadvantage that the safe would wobble in the direction of withdrawal.

As a locking device to eliminate this rattling, in addition to the 10th lock mechanism consisting of the lock bar, a 20th lock mechanism consisting of a lock lever whose position can be adjusted is provided, and the position of the lock lever to securely engage with the safe is provided. Adjust in advance to
A device in which the safe is locked by the lock bar and the lock lever by operating the 11th and 20th lock mechanisms is disclosed in Japanese Patent Publication No. 1973-
It has been proposed in Publication No. 43440 and the like.

However, this device has disadvantages in that it has a complicated structure and a large number of parts, making the device expensive to manufacture, and requiring positional adjustment, making it troublesome to handle.

The purpose of the present invention was made in view of the above-mentioned drawbacks, and when the safe is locked, the stopper locking surface of the locking lever that rotates in a plane parallel to the direction of taking in and taking out the safe and fits into the locking hole of the side plate of the safe locks the safe. The safe has a simple structure and is convenient to handle because the shape of the locking surface is formed into an arc eccentric from the rotation axis of the lock lever so that it can be closely engaged with the inner edge of the lock hole on the opposite side to the withdrawal direction. This provides a locking device such as the following.

Hereinafter, details of the present invention will be explained using examples shown in the drawings.

Figure 1 is a partially cutaway front view showing an embodiment of the locking device of the present invention, Figure 2 is a partial side view showing the installed state of the locking lever of the present invention, and Figure 3 is a view of the locking piece of the present invention. In the Mohira figure, which is a partial bottom view showing the installed state, the reference numeral 1 indicates the casing.
A safe 4 is housed in the safe 4 which can be pulled out in the direction of the arrow along a safe guide plate 3 provided inside the housing 1.

Further, a locking hole 4b is bored in one side plate 4a of the safe 4, and a fitting window 3a is opened in the safe guide plate 3 corresponding to the locking hole 4b.

On the other hand, a locking lever 7 is attached to a shaft 5 which is attached to a lever support part 3b formed by bending a part of the safe guide plate 3, and which is given a counterclockwise rotational habit by a spring 6. The locking lever 7 is rotatably provided, and the locking lever 7 has a stopper 71 having a locking surface 71a shaped like an arc centered on a point P eccentric from the shaft 5.
and a locking protrusion 72 are integrally formed.

Further, the stopper 71 passes through the fitting window 3a due to the rotation biasing force of the spring 6, and the locking surface 71a locks on the edge 4c of the locking hole 4b on the opposite side to the direction in which the safe is pulled out. 1 and is fitted into the locking hole 4b.

Reference numeral 8 indicates a locking piece, and one end 8a of this locking piece 8 is connected to the bent portion 3c of the safe guide plate 3 as shown in FIG.
The other end 3b is supported by the U-shaped part 3d erected at
is supported by the bent portion 1a of the casing 1, exposed outside the casing 1, and can be freely drawn out in the direction of arrow B.

Further, the locking lever 7 is provided in the concave groove 8c of the locking piece 8.
The locking protrusion 72 is fitted.

Furthermore, although the locking piece 8 is omitted in FIG. 3, as shown in FIG. 1, the other end 8b is loosely fitted between the guide pieces 9, 10, 1 (Lt=-) and a hole 11 passing through the other end 8b perpendicularly to the longitudinal direction thereof is configured such that a padlock or the like can be inserted therein.

Further, a stopper pin 12 is provided within the housing 1, spaced apart on the side opposite to the stopper 71 of the locking lever 7, for positionally regulating the clockwise rotation of the locking lever T.

The locking surface 71a is not particularly limited to the shape of a circular arc centered on point P, but may have the shape of a circular arc centered on an arbitrary point eccentric from the shaft 5. It may be an arcuate shape that can be deeply fitted into the locking hole 4b by the biasing force of the spring 6 and that the locking surface 71a can be reliably locked to the edge 4c.

Next, to explain the operation of this embodiment, FIG. 1 shows a locked state, and the guide pieces 9, 10 and the other end 8b of the lock piece 3
A padlock (not shown) is attached to the lock, and in this state, the lock piece 8 cannot be pulled out in the direction of arrow B, and the safe 4 cannot be pulled out in the direction of arrow A.

(1#), the locking lever 7 is inserted into the locking hole 4b of the safe 4.
The stopper 71 is fitted by the biasing force of the spring 6,
Since the locking surface 71a is locked to the edge 4c of the locking hole 4b, the safe 4 cannot be pulled out in the direction of arrow A.

In this locked state, the locking surface 71a and the edge 4c closely engage with each other, so that the safe 4 is reliably locked without any play in the withdrawal direction.

In addition, if the safe 4 is rattled from the outside due to mischief or the like, the stopper 71 receives the biasing force of the spring 6.
Since the locking surface 71a is formed in an arc shape, the locking surface 71a is 1 in which the locking surface 71a and the edge 4C of the locking hole 4b are completely tightly engaged; Since the safe 4 is deeply fitted into the locking hole 4b so as to be in sliding contact with the edge 4c, the safe 4 can be locked even more reliably when it is completely housed in the safe storage section 2 without any play. Become.

Next, when the padlock is removed and the locking piece 8 is moved in the direction of arrow B as shown by the two-dot chain line in FIG. 3 and FIG. Concave groove 8
c are in an engaged state, and the locking protrusion 72 is forcibly moved by the locking piece 8. Therefore, the locking lever 7 resists the biasing force of the spring 6 with the shaft 5 as a fulcrum, and the stopper pin 12 It rotates clockwise at 1 when it is locked.

As the locking lever 7 rotates, the stopper 71 is released from the locking hole 4b of the safe 4, and in this state, the safe 4 can be freely pulled out in the direction of arrow A.

Next, when storing the safe 4 in the casing 1, insert the safe 4 into the safe storage section 2, and lock the locking piece 8 with the opposite arrow B.
When the locking piece 8 is moved in this direction, the engagement between the locking piece 8 and the locking protrusion 72 of the locking lever 7 is released, and the locking lever 1 is moved counterclockwise around the shaft 5 by the biasing force of the spring 6. The stopper 11 passes through the fitting window 3a of the safe guide plate 3 and is inserted into the locking hole 4b of the safe 4 until the locking surface 71a tightly engages with the edge 4c of the locking hole 4b. Then, it becomes locked as shown in Fig. 1.

As explained above, according to the present invention, when the lock is locked, the locking surface of the locking lever rotates in a plane parallel to the direction in which the safe is taken in and taken out, and tightly engages with the inner edge of the locking hole on the opposite side to the direction in which the safe is pulled out. By forming the shape of the locking surface into an arc eccentric from the rotation axis of the locking lever, 1) the locking lever and the safe can be reliably engaged without adjusting the engagement position between them in advance. Moreover, since the structure is simple and the number of component parts is small, it is easy to assemble and the manufacturing cost is reduced, which has moderate practical effects.

[Brief explanation of the drawing]

Figure 1 is a partially cutaway front view showing an embodiment of the locking device of the present invention, Figure 2 is a partial side view showing the installed state of the locking lever of the present invention, and Figure 3 is a view of the locking piece of the present invention. FIG. 4 is a partially cutaway front view showing the locking device of the present invention unlocked. 1... Housing, 2... Safe storage section, 3.
... Safe guide plate, 3a ... Window, 4.
...Safe, 4a...-side plate, 4b...
...Lock hole, 4c...Edge, 5...
Shaft, 6...Spring, 7...Lock lever, 71...Stopper, 71a...
Locking surface, 8... Locking piece, 8a... One end, 8b... Other end.

Claims (1)

[Scope of utility model registration request] A locking hole is bored in the side plate of the safe provided in the safe storage section inside the casing so that it can be taken in and out, and a fitting window is opened in the safe guide plate of the safe storage section corresponding to the locking hole. A stopper is integrally formed with a locking surface that fits into the locking hole through the insertion window and locks the locking hole, and has a spring or the like that constantly rotates the stopper in the direction of fitting the locking hole into the locking hole. A locking lever provided with a locking lever is rotatably attached to the outside of the safe storage part in a plane parallel to the insertion and removal direction of the safe, and one end engages with the locking lever and the other end engages with the housing. A locking piece that is exposed outside the body and that releases the engagement between the locking hole and the stopper is provided in the housing so as to be freely inserted and removed, and when the lock is locked, the locking surface of the locking lever is on the opposite side to the direction in which the safe is pulled out. A locking device for a safe, etc., characterized in that the shape of the locking surface is formed into an arc eccentric from the rotation axis of the locking lever so that it can be closely engaged with the inner edge of the locking hole.