JPH07238718A - Lock holder - Google Patents

Abstract

PURPOSE:To conduct the insertion and fixing operation of a cylinder lock into an inserting hole through a simple and single operation. CONSTITUTION:A cylindrical body, in which an engaging projection 6 elastically projected and engaged with the rear of a door is formed to an outer circumferential surface inserted into an inserting hole 3, a collar section 7 is formed at a front end and an annular groove 9, into which the front collar section 8 of a cylinder lock 4 is fitted, is shaped to the inner circumferential surface of the collar section 7, is divided into two, thus constituting a pair of half bushes 1, 1. A thin flexible hinge 2 connecting the half bushes 1, 1 is molded integrally with the half bushes 1, 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock holder which facilitates mounting and dismounting of a cylinder lock.

[0002]

2. Description of the Related Art Prior art relating to a structure for mounting a cylinder lock is disclosed in Japanese Utility Model Publication Nos. 63-54747 and 63-5.
There is a technique described in Japanese Patent No. 4748. In the former "Cylinder lock mounting part" described in Japanese Utility Model Laid-Open No. 63-54747, a protective cover is fixed to a flange provided at the front end of the cylinder lock case, and a protrusion is formed on the outer peripheral surface of the cylinder lock case. It has a structure in which it is inserted from the rear end of the cylinder lock into an insertion hole provided in the door, and an elastically deformable stopper is inserted between the back surface of the door and the protrusion.

In the latter "Cylinder lock cap mounting structure" described in Japanese Utility Model Laid-Open No. 63-54748, a short tube portion is provided on the back surface of the face plate of the cap, and the short tube portion extends outward from the outer peripheral surface. Providing a locking plate that protrudes, a lock cylinder into which the short cylinder part is inserted is provided on the back of the mounting hole of the cylinder lock, and a cutout that allows the locking plate to pass through is provided in the lock cylinder. A taper-shaped slide guide surface is provided toward the front, and the locking plate of the cap is screwed along the taper-shaped slide guide surface.

As another general mounting structure for a cylinder lock, a flange is provided at the front end of the cylinder lock, a male screw is screwed on the outer peripheral surface of the cylinder lock, and a rear portion of the cylinder lock is inserted into an insertion hole provided in the door. There is a mounting structure that is inserted and tightened with a nut screwed to a male screw so as to be tightened to a door.

[0005]

The work of inserting and fixing the cylinder lock into the insertion hole of the door or the like requires the cylinder lock insertion work and the cylinder lock fixation work in any of the above-mentioned cylinder lock mounting structures. It is necessary and the fixing work must be done from the back side of the door, so it is not easy. Particularly, in the method of tightening with a nut, it is troublesome because the nut cannot be tightened unless it is rotated many times.

Further, when vibration or impact is generated on the door,
In the "cylinder lock mounting portion", the inserted stopper may loosen, and in the "cylinder lock cap mounting structure", the locking plate may slide and loosen along the tapered slide guide surface. An object of the present invention is to solve such a problem, and a cylinder lock can be inserted into an insertion hole of a door by a simple one-touch operation, and the cylinder lock can be securely fixed even if vibration or impact occurs on the door after insertion. The lock holder is provided.

[0007]

To achieve the above object, according to the present invention, a cylinder lock insertion hole is formed inside, and an outer peripheral surface fitted into the insertion hole of the door is elastically protruded so that the door is closed. A locking protrusion that engages with the back surface is provided, a flange portion that abuts the front surface of the door is provided around the front end, and an annular groove into which the front flange portion of the cylinder lock is fitted is provided on the inner peripheral surface of the flange portion. The provided tubular body is divided into two to form a pair of half-cracking bushes, and the pair of half-cracking bushes and a thin-walled flexible hinge connecting the pair of half-cracking bushes are integrally formed from a synthetic resin material. The lock holder was formed by molding.

The locking protrusion can be formed by a flexible arm inclined in a direction projecting outward toward the front end of the cylindrical body. This lock holder may be used when fixing the cylinder lock to the coin locker door.

[0009]

With the lock holder configured as described above,
To attach the cylinder lock to the lock case of the door, first, the front flange portion of the cylinder lock is inserted into the annular groove of the lock holder, and the cylinder lock is held by the pair of half-split bushes. When this lock holder is inserted from the rear side into the insertion hole of the lock case of the door, the locking projection that has passed through the insertion hole elastically protrudes and engages with the back surface of the lock case of the door. The locking protrusion holds the lock case of the door, and the lock holder is fixed to the door.

The outer peripheral surface of the cylinder lock is covered and protected by the lock holder so that there is no risk of rattling the door, and the cylinder holder is supported by the lock holder so that it cannot rotate and cannot move in the axial direction. When removing the cylinder lock, the locking protrusion may be compressed and deformed to pull out the lock holder from the insertion hole. The lock holder is a one-piece structure and is convenient to use.

When the door is a coin locker door, even if a general user of the coin locker opens and closes the door roughly, the shock is absorbed by the lock holder, so that the cylinder lock is protected from the shock. Further, the lock holder made of synthetic resin is easy to be colored, and the surface of the coin locker can be beautified to attract demand.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. A lock holder L includes a pair of lock holders L as shown in a longitudinal sectional view in a superposed state in FIG. 1 and a longitudinal sectional view before superposed in FIG. It is composed of half-split bushes 1 and 1 and a thin flexible hinge 2 that connects the half-split bushes 1 and 1 (see FIG. 5), and is integrally molded from a synthetic resin material.

The half-split bushes 1, 1 are door lock cases C
A cylindrical body which can be inserted into an insertion hole 3 (see a chain line in FIG. 1) provided in the cylinder and has a cylinder lock insertion hole 5 into which a cylinder lock 4 (see FIG. 8) is inserted is formed on the inner peripheral surface of the cylindrical body 2. It is a divided shape. Therefore, when the half-split bushes 1 and 1 are bent and bent from the thin flexible hinge 2, they form a tubular body.

The shape of the cylinder lock insertion hole 5 is a non-circular shape having flat portions on both side surfaces, similar to the shape of the outer peripheral surface of the case of the cylinder lock 4 (front view of FIG. 3, (See the rear view of FIG. 4), when the half-split bushes 1 and 1 are overlapped and the cylinder lock is inserted therein, the case of the cylinder lock 4 is held non-rotatably with respect to the lock holder L. A locking protrusion 6 is provided on the outer peripheral surface of the tubular body, a flange portion 7 is provided at the front end of the tubular body, and a front flange portion 8 of the cylinder lock 4 is fitted on the inner peripheral surface of the flange portion 7. An annular groove 9 is provided. Therefore, the cylinder lock 4 housed in the lock holder L cannot move in the front-rear direction.

The locking projection 6 elastically projects outward from the cylindrical body and engages with the back surface of the door. The shape of the locking projection 6 is, for example, both side surfaces of the half-split bush 1. It is possible to form a flexible arm that is formed in a cut-and-raised shape and that is inclined in a direction that projects outward toward the front end of the half-split bush 1 (see FIGS. 2 and 6).

Next, the operation of the lock holder L configured as described above will be described in the order of attachment and removal. To attach the cylinder lock 4 to the door lock case C, first, in the annular groove 9 of the lock holder L, the front flange portion 8 of the cylinder lock 4 is attached.
Is inserted, the pair of half-split bushes 1 and 1 are overlapped, and the cylinder lock 4 is held. Thus, the cylinder lock 4
The lock holder L is housed so that it cannot rotate and cannot move in the front-rear direction.

When this lock holder L is inserted into the insertion hole 3 with the rear side facing the surface of the lock case C of the door, the locking projection 6 hitting the insertion hole 3 is elastically deformed in the direction of being retracted, and the insertion hole 3 is inserted. Since the locking projection 6 elastically returns and projects after passing through (see FIG. 7) and engages with the back surface of the lock case C of the door,
The collar portion 7 and the locking protrusion 6 of the lock holder L are the lock case C of the door.
And the lock holder L is fixed to the door.

The outer peripheral surface of the cylinder lock 4 has a lock holder L.
It is covered and protected by the lock holder L and is supported by the lock holder L so as not to rotate and move in the axial direction. Since the lock holder L is sandwiched between the insertion hole 3 and the cylinder lock 4, the half-split bushes 1, 1
There is no danger of opening. When the cylinder lock 4 is to be removed, the lock protrusion L may be compressed and deformed to pull out the lock holder L from the insertion hole 3. The lock holder L is a one-piece integrated structure and is convenient to use.

When the door is a coin locker door, the impact is absorbed by the lock holder L even if a general user of the coin locker opens and closes the door abruptly, so that the cylinder lock 4 is protected from the impact. is there. Further, the lock holder L made of synthetic resin is easy to be colored, and the surface of the coin locker can be beautified to attract demand.

[0020]

Since the present invention is constructed as described above, it has the following effects. (1) To attach the cylinder lock to a door, etc., the cylinder lock housed in the lock holder can be inserted and fixed with a simple one-touch operation of inserting it into the insertion hole. Therefore,
There is no need to perform a troublesome fixing work from the back side of the door as in the past. (2) Since the lock holder covers and protects the cylinder lock, and the annular groove of the lock holder locks the front flange of the cylinder lock, the shock is transmitted to the cylinder lock even if the door is shocked. Moreover, there is no risk that the cylinder lock will be loosened or that the cylinder lock will not fall off. Therefore, even if the general user of the coin locker violently opens and closes the door, the performance and the anti-theft property of the cylinder lock are not deteriorated.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a lock holder showing a state in which half-split bushes are superposed.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of FIG.

FIG. 4 is a rear view of FIG.

FIG. 5 is a vertical cross-sectional view of the lock holder before the half-split bush is superposed.

FIG. 6 is a perspective view of a lock holder showing a state in which half-split bushes are superposed.

FIG. 7 is a plan view of a lock case C of a door to which a cylinder lock is attached.

FIG. 8 is a side view of a lock case C of a door to which a cylinder lock is attached.

[Explanation of symbols]

 C Door lock case L Lock holder 1 Half crack bush 2 Thin flexible hinge 3 Insertion hole 4 Cylinder lock 5 Cylinder insertion hole 6 Locking protrusion 7 Collar part 8 Front collar part 9 Annular groove

Claims (3)

[Claims] 1. A cylinder lock insertion hole is formed inside, and a locking projection that elastically projects and engages with the back surface of the door is provided on the outer peripheral surface fitted into the insertion hole of the door, and the front end of the door is A cylindrical body having a flange portion that abuts the surface is provided around the inner peripheral surface of the flange portion, and an annular groove into which the front flange portion of a cylinder lock is fitted is divided into two to form a pair of half-split bushes. A lock holder, characterized in that the pair of half-split bushes and a thin-walled flexible hinge connecting the pair of half-split bushes are integrally molded from a synthetic resin material. 2. The lock holder according to claim 1, wherein the locking protrusion is formed by a flexible arm inclined in a direction projecting outward toward a front end of the cylindrical body. 3. The lock holder according to claim 1, wherein the door is a coin locker door.