JP3219738B2 - Handle lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a handle lock used for, for example, a vending machine door, and more particularly to a handle lock provided with further protection against breakage of a lock by a drill or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIGS. 9 and 10, a handle lock 1 has an outer cylinder 2, an inner cylinder 3 contained therein and slidable in the front-rear direction, and a front end of the inner cylinder 3. It comprises a zinc die-casting handle 5 for opening and closing operation, which is provided with the provided gripping portion 4, and a zinc die-casting handle case 6 for rotatably and loosely supporting the handle 5. The inner cylinder 3
Is provided with a bar that protrudes in the radial direction from the outer peripheral surface, and the bar is protruded so as to be locked in the locking hole 8 of the outer cylinder 2. This handle lock 1 is shown in FIG.
As shown in FIG. 1, it is fixed to a door 9 of a vending machine or the like with bolts or the like.

[0003] When the key is inserted into the key groove of the handle 5 and rotated, the bar is immersed in the inner cylinder 3 and the locking action with the locking hole 8 of the outer cylinder 2 is released. Then, the inner cylinder 3 and the gripping portion 4 are moved by the coil spring 7 of an elastic member.
When the gripping portion 4 is rotated in the direction of arrow a in FIG. 9, the locking / release lever 10 in FIG. 11 is rotated in the release direction and unlocked, The door 9 can be opened.

[0004]

However, in the conventional handle lock, since the handle and the handle case are made of zinc die-cast and relatively soft, the handle and the case are forced to intrude from the door toward the bar by, for example, a drill. The bar is destroyed. When the bar is broken, there is a problem that the handle easily protrudes forward, the door is opened and the vehicle is stolen. The handle lock according to the present invention is proposed to solve such a problem.

[0005]

The gist of the present invention for solving the above-mentioned problems of the handle lock according to the present invention is to provide an outer cylinder, an inner cylinder contained therein and slidable in the front-rear direction, and a front end of the inner cylinder. The handle comprises a handle for opening and closing operation provided with a grip portion provided, and a handle case for rotatably loosely supporting the handle and supporting the handle, and engages a bar for locking the outer cylinder and the inner cylinder of the handle. By releasing the lock, the inner cylinder and the gripping part are projected forward, and in a handle lock that opens the door by rotating the gripping part, the outer cylinder of the handle has a triangular shape, and its vertex is forward. That is, a bar protection member which is a protruding member is provided.

[0006]

According to the handle lock of the present invention, even if the handle lock of the door in a vending machine or the like is to be broken by a drill or the like, the cutting edge of the drill comes into contact with the bar protecting member to directly break the bar. Cannot be done, and the bar is not easily broken. Furthermore, by providing a spherical ball in a freely rotatable manner and providing it on the outer peripheral surface of the handle outer cylinder, the invading drill bit rotates idly and forcibly.
Even if it is pushed in the direction of the bar , it is deflected to the side and escapes the destruction of the bar. Further, by making the arrangement of the balls triangular, the cutting edge of the drill can be surely deviated. A similar effect can be obtained with a triangular projection member. In addition, even if the hardened metal tip is used as the bar protection member, it takes a lot of time to break the bar, and as a result, the bar is not broken. In addition, the drill itself can be deflected by making the bar itself rigid and triangular.

[0008]

Next, a handle lock 11 according to the present invention will be described with reference to the drawings. Note that, for easy understanding of the invention, portions corresponding to the conventional example will be denoted by the same reference numerals as the conventional example.

The handle lock 11 according to the present invention has the same basic structure as that of the conventional example. As shown in FIGS. 1 and 2, the handle lock 11 is enclosed in the outer cylinder 2 and is slidable in the front-rear direction. An open / close operation handle 5 composed of a small inner cylinder 3 and a grip 4 provided at a front end of the inner cylinder 3 and a handle case 6 for rotatably and loosely supporting the handle 5 for support. .

[0010] The inner cylinder 3 has a quenched bar 12 projecting from the outer peripheral surface orthogonal to the radial direction of the inner cylinder.
Always biased in the protruding direction by a torsion spring, etc.
Is provided. The two bars 12 are provided symmetrically around the axis of the inner cylinder 3.

[0011] By該閂12 protrudes in the protruding direction, and engaging the locking hole 8 of the outer cylinder 2, inner cylinder relative to the outer tube 2 3
Of the handle case 6 is prevented from projecting from the front end face of the handle case 6. Therefore, when the two bars 12 are broken, the inner cylinder 3 and the gripping portion 4 protrude from the front end face of the handle case 6 and the door 9 is opened. The configuration is as follows.

That is, the bar 12 is provided on the outer peripheral surface of the outer cylinder 2.
In the present embodiment, two or more spherical balls 13 as bar protection members are rotatably provided on the near side, and one or two or more balls are provided in this embodiment. The ball 13 has a diameter of about 4 mm, for example.

With the configuration of the first embodiment, for example,
When a door in a vending machine or the like is broken by a drill as a breaking member and is forcibly opened, when the drill is pierced while rotating from the upper portion of the gripping portion 4 toward the bar 12 (direction b in the drawing). The cutting edge contacts the balls 13, 13 in front of the bar 12. Then, the ball 13 is rotated by the drill, and the drill becomes idle. Further, when the ball 13 is further pushed, it is difficult to move straight by the spherical ball 13 and the ball 13 is deviated to the side.

In this way, the penetration of the drill is directly prevented, and a great amount of time is required until the bar 12 is destroyed. As a result, the bar 12 is prevented from being destroyed.

Next, according to a second embodiment of the present invention, as shown in FIGS. 3 and 4, balls 13, 14 which are bar protection members.
With the handle lock 15 devised for the arrangement of the outer cylinder 2
The ball 13 (about 4 m in diameter)
m) is rotatably provided and two balls 14 (about 2 m in diameter)
m) is provided on the side close to the bar 12 to protect the bar 12.

The balls 13 and 14 are intended to prevent breakage of a drill or the like in two stages.
Since these balls are arranged in a triangular shape as a whole, as shown in FIG. 5, the cutting edge of the drill abutted on the ball 13 and deflected to the side is further bent by a ball 14 as shown by an arrow. It is something that is kept away from.

As a third embodiment of the present invention, as shown in FIG. 6, a quenching-processed triangular whole member is formed on the outer peripheral surface of the outer cylinder 2 with its apex 16a directed forward.
Is provided as a bar protection member.

As a result, the cutting edge of the drill that has entered from the front is guided in the lateral direction and deviated from the bar 12.

FIG. 7 and FIG. 8 show a fourth embodiment of the present invention.
As shown in (a), a metal chip 18 such as a hardened iron plate is provided on the outer peripheral surface of the outer cylinder 2 and before the bar 12. The chip 18 has, for example, a thickness of 2 mm.
And a plate-like body formed along the arc shape of the outer knitting 2. These are made into two pieces, and they are fixed to the mounting recesses of the outer cylinder 2 by press fitting or the like.

With such a tip 18, the penetration of the drill bit is prevented, and the bar 12 is protected.

In the fifth embodiment of the present invention, as shown in FIG. 8 (b), the bar 12a itself is made rigid, is further made into a triangular shape, and its vertex is directed forward. Thereby, the cutting edge of the drill is deviated. In addition, bar 12
The triangular portion of a may be not only the entire bar, but also a part of only the portion protruding from the outer peripheral surface of the inner cylinder.

[0022]

As described above, the handle lock according to the present invention comprises an outer cylinder, an inner cylinder contained therein and slidable in the front-rear direction, and a grip provided at a front end of the inner cylinder. a handle for opening and closing made of, consists of a handle case to support loosely fitted rotatably to the handle, wherein in that to release the locking obex for engaging the outer tube and the inner tube of the handle In a handle lock in which an inner cylinder and a gripping portion are protruded forward and a door is opened by rotating the gripping portion, the outer cylinder of the handle has a triangular shape, and a vertex thereof is directed forward. Since the bar protection member is provided, the drill bit comes into contact with the bar protection member and the bar cannot be broken directly. is there.

[0023]

[0024]

[Brief description of the drawings]

FIG. 1 is a front view of a handle lock according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of the handle lock according to the first embodiment of the present invention.

FIGS. 3A and 3B are front views (A) and (B) of a handle lock according to a second embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a handle lock according to a second embodiment of the present invention.

FIG. 5 is an explanatory diagram showing the arrangement of the balls.

FIG. 6 is an explanatory view showing an operation of a projection member according to a third embodiment of the present invention.

FIG. 7 is a front view of a handle lock according to a fourth embodiment of the present invention.

FIG. 8 is a longitudinal sectional view of a fourth embodiment according to the present invention (a).
FIG. 14 is a plan view (b) showing the fifth embodiment.

FIG. 9 is a front view of a conventional handle lock.

FIG. 10 is a longitudinal sectional view of the conventional handle lock.

FIG. 11 is a perspective view showing a state in which the conventional handle lock is attached to a door.

[Explanation of symbols]

1 Conventional handle lock, 2 outer cylinder, 3 inner cylinder, 4
Gripper, 5 handle, 6 handle case, 7 the coil spring 8 engaging hole, 9 the door, 10 the lever, 11 a handle lock of the first embodiment, 12 obex, 12a 5
Bar, 13, 14 ball, 15 Handle lock of the second embodiment, 16 projecting member, 17 Handle lock of the fourth embodiment, 18 tips.

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E05B 17/00 E05B 5/00 E05B 5/02 E05B 65/02

Claims (1)

(57) [Claims] An opening / closing operation handle comprising an outer cylinder, an inner cylinder contained therein and slidable in the front-rear direction, and a grip provided at a front end of the inner cylinder, and the handle is rotatable. consists of a handle case to support loosely fit, the inner tube and the grip portion of the obex for locking by causing unlocking the outer cylinder and the inner cylinder of the handle is protruded forward, the gripper A handle lock for opening a door by rotating a handle bar, wherein a bar-shaped protection member is provided on the outer cylinder of the handle in a triangular shape, and a projection member whose vertex is directed forward. .