JP3193223B2 - Lock holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock holder for easily attaching and detaching a cylinder lock.

[0002]

2. Description of the Related Art The prior art relating to the mounting structure of a cylinder lock is disclosed in Japanese Utility Model Laid-Open Publication No.
There is a technique described in US Pat. The former "cylinder lock mounting portion" described in Japanese Utility Model Laid-Open Publication No. 63-54747 has a protective cover fixed to a flange provided at the front end of a cylinder lock case, and a projection formed on an outer peripheral surface of the cylinder lock case. The lock is inserted into the insertion hole provided in the door from the rear end of the cylinder lock, and an elastically deformable stopper is inserted between the rear surface of the door and the projection.

[0003] The "cylinder lock cap mounting structure" described in Japanese Utility Model Laid-Open Publication No. 63-54748 discloses a method in which a short cylinder portion is provided on the back surface of a front plate of a cap, and the short cylinder portion extends outward from the outer peripheral surface of the short cylinder portion. A locking plate that protrudes is provided, a lock cylinder into which a short cylinder portion is inserted is provided on the back of the mounting hole of the cylinder lock, a notch portion through which the locking plate can pass is provided in the lock cylinder, and the lock cylinder is moved from the notch portion to the lock cylinder. The tapered sliding guide surface is provided so that the locking plate of the cap is screwed along the tapered sliding guide surface.

[0004] As another general mounting structure for a cylinder lock, a flange is provided at the front end of the cylinder lock, an external thread is screwed on the outer peripheral surface of the cylinder lock, and an insertion hole provided in a door is inserted from the rear of the cylinder lock. There is a mounting structure in which a nut that is inserted and screwed into a male screw is tightened to tighten the door.

[0005]

In order to insert and fix a cylinder lock into an insertion hole such as a door, any of the above-described cylinder lock mounting structures requires insertion of the cylinder lock and fixing of the cylinder lock. This is not easy because it is necessary and the fixing work must be performed from the back side of the door. In particular, in the method of tightening with a nut, it is troublesome because the nut cannot be tightened unless it is rotated many times.

[0006] When vibration or impact occurs on the door,
In the “cylinder lock mounting portion”, the inserted stopper may be loosened, and in the “cylinder lock cap mounting structure”, the locking plate may slide and loosen along the tapered sliding 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 even if vibration or impact occurs on the door after insertion, the cylinder lock is securely fixed. And a lock holder.

[0007]

In order to achieve the above object, the present invention provides a cylindrical lock having a cylinder lock insertion hole formed therein.
A collar that protrudes outward from the front end of the body and contacts the surface of the door
The front flange of the cylinder lock is fitted on the inner peripheral surface of the flange.
An annular groove provided on the outer peripheral surface of the cylindrical body.
The back of the door when inserted into the insertion hole of the door from the front of the door
The cylindrical body is provided with an elastic locking projection
A pair of half-split bushes and a pair of half-split
A thin flexible hinge connecting the rear end of the bush
Characterized in that it is formed by integrally molded Ri by the fat material.

[0008]

With the lock holder constructed as described above,
To attach the cylinder lock to the lock case of the door, first, insert the front flange of the cylinder lock into the annular groove of the lock holder, and hold the cylinder lock with a pair of half-cut bushes. When this lock holder is inserted into the insertion hole of the lock case of the door from the rear side, the locking projection that has passed through the insertion hole elastically projects and engages with the back surface of the lock case of the door. The locking projections clamp 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, and there is no possibility of rattling against the door. To remove the cylinder lock, the locking projection may be compressed and deformed to pull out the lock holder from the insertion hole. Since the lock holder is a one-piece structure, it is convenient to use.

When the door is a coin locker door, even if a general user of the coin locker violently opens and closes the door, the shock is absorbed by the lock holder, so that the cylinder lock is protected from the shock. In addition, the lock holder made of a synthetic resin is easily colored, and can beautify the surface of the coin locker to stimulate demand.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. As shown in a longitudinal sectional view of a locked state of FIG. 1 and a longitudinal sectional view of a locked state of FIG. a semi-cracking bush 1, 1, of the half-split bush 1,1
It is composed of a thin flexible hinge 2 connecting the rear ends (see FIG. 5), and is integrally molded from a synthetic resin material.

The half-split bush 1, 1 is a lock case C for the door.
A cylindrical body L _{1 which} can be inserted into an insertion hole 3 (see a chain line in FIG. 1) provided in a cylinder lock insertion hole 5 in which a cylinder lock 4 (see FIG. 8) is inserted on an inner peripheral surface. Is divided into two in the axial direction . Therefore, when overlapping the bush 1,1 cracking half bent from thin flexible hinges 2 becomes cylindrical body L _1.

Since the shape of the cylinder lock insertion hole 5 is formed in a non-circular shape having flat portions on both sides, similarly to the shape of the outer peripheral surface of the case of the cylinder lock 4 (see the front view of FIG. The case of the cylinder lock 4 is held non-rotatably with respect to the lock holder L when the half-split bushes 1 and 1 are overlapped and the cylinder lock is inserted therein (see the rear view in FIG. 4). A locking projection 6 is provided on the outer peripheral surface of the cylindrical body, a flange 7 is provided on the front end of the cylindrical body, and a front flange 8 of the cylinder lock 4 is fitted on the inner peripheral surface of the flange 7. An annular groove 9 is provided. Therefore, the cylinder lock 4 accommodated in the lock holder L cannot move in the front-rear direction.

The locking projection 6 elastically protrudes outward from the cylindrical body, and engages with the back surface of the door. A flexible arm can be formed in a cut-and-raised shape and inclined in a direction protruding 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 mounting and removing. To attach the cylinder lock 4 to the lock case C of the door, first, the front flange 8 of the cylinder lock 4 is inserted into the annular groove 9 of the lock holder L.
Is inserted, and a pair of half-split bushes 1 and 1 are overlapped to hold the cylinder lock 4. Thus, the cylinder lock 4
The lock holder L is accommodated in such a manner that it cannot rotate and cannot move in the front-rear direction.

When the lock holder L is inserted into the insertion hole 3 with its 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 immersion, and the insertion hole 3 After passing through, the locking projection 6 elastically returns and protrudes (see FIG. 7), and engages with the back surface of the lock case C of the door.
The flange 7 and the locking projection 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
There is no danger of rattling against the door, and it is supported by the lock holder L so that it cannot rotate and cannot move in the axial direction. Since the lock holder L is sandwiched between the insertion hole 3 and the cylinder lock 4, the half-break bush 1, 1
There is no danger of opening. When the cylinder lock 4 is to be removed, the locking projection 6 may be compressed and deformed to pull out the lock holder L from the insertion hole 3. Since the lock holder L is a single component having an integral structure, it is convenient to use.

When the door is a door of a coin locker, the shock is absorbed by the lock holder L even if a general user of the coin locker violently opens and closes the door, so that the effect of protecting the cylinder lock 4 from the shock is obtained. is there. Further, the lock holder L made of synthetic resin can be easily colored, and can beautify the surface of the coin locker to stimulate demand.

[0019]

Since the present invention is configured as described above, it has the following effects. (1) To attach a cylinder lock to a door or the like, the cylinder lock housed in the lock holder can be inserted and fixed by a simple one-touch operation of inserting the cylinder lock into the insertion hole. Therefore,
It is no longer necessary to perform troublesome fixing work from the back side of the door as in the related art. (2) the lock holder is coated cylinder lock, protects, the annular groove of the locking holder is locked to the front collar portion of the cylinder lock, even if impact is applied to the door, the impact of the cylinder lock is slow
Is the sum, also loose in the cylinder lock fixed, there is no possibility that the cylinder lock may drop. 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 reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a lock holder showing a state in which a half-split bush is superimposed.

FIG. 2 is a side view of FIG.

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a rear view of FIG. 1;

FIG. 5 is a longitudinal sectional view of a lock holder before a half-split bush is overlapped.

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

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 Lock case for door L Lock holder L ₁ Cylindrical body 1 Half-cut bush 2 Thin flexible hinge 3 Insertion hole 4 Cylinder lock 5 Cylinder insertion hole 6 Locking projection 7 Flange 8 Front flange 9 Ring groove

Claims (1)

(57) [Claims] 1. A cylindrical shape having a cylinder lock insertion hole formed therein.
A collar that protrudes outward from the front end of the body and contacts the surface of the door
The front flange of the cylinder lock is fitted on the inner peripheral surface of the flange.
An annular groove provided on the outer peripheral surface of the cylindrical body.
The back of the door when inserted into the insertion hole of the door from the front of the door
The cylindrical body is provided with an elastic locking projection
A pair of half-split bushes and a pair of half-split
A thin flexible hinge connecting the rear end of the bush
A lock hoe characterized by being integrally formed of a fat material
Ruda.