JPH0721789Y2 - Wire lock covering material - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a covering member for covering a wire of a wire lock.

[0002]

2. Description of the Related Art Conventionally, a wire lock having a wire covered with a covering member and having a good appearance has been widely used. This is, as shown in FIG. 4, a cylindrical cover body a made of resin or the like, and a cylindrical retainer for preventing the wire b inserted through the distal end portion a2 of the cover body a from coming off. The retaining member e is provided with a covering main body fitting insertion portion e1 which is fitted into the distal end side a2 of the covering main body a, and the rear end portion of the inner peripheral surface is provided with a wire b distal end portion. The wire b is made smaller than the outer diameter of the locking piece d attached to
It is provided with an engaging portion e2 that engages with the rear end surface of the locking piece d. Then, the rear end portion a1 of the covering body a is attached to the covering member attaching portion c1 provided on the lock body c, and the leading end portion a2 of the covering body a is covered with the covering body fitting insertion portion e1 of the retaining member e passed through the wire b. It is set in a wire lock by inserting and attaching. In addition, c2 in the drawing indicates a locking piece fitting hole into which the locking piece d is fitted and locked.

[0003]

However, in this case, since the engaging portion e2 of the retaining member e is smaller in diameter than the outer diameter of the locking piece d, the lock body c is locked to both ends of the wire b. Before attaching each piece d, it is necessary to pass the retaining member e through the wire b in advance. As a result, in order to set the covering body a, first, the wire b having the locking piece d attached to the front end side is passed through the retaining member e and the covering body a in order from the rear end side, and the fitting insertion portion of the retaining member e is inserted. e1 coated main body a
Of the wire b is attached to the lock body c and the rear end a1 of the cover body a is attached to the cover member attachment portion c1 provided in the lock body c. I won't. Therefore, it takes time to set the covering member, and the setting work is difficult.
When attaching the rear end portion to the lock main body c, there is a problem that the coating main body a passed through the wire b becomes an obstacle and machining is difficult.

The present invention has been proposed in view of the above circumstances, and an object thereof is to provide a wire lock covering member which can be easily set on the wire portion of the wire lock.

[0005]

The present invention solves the above-mentioned problems by providing a wire lock covering member having the following features. The covering member according to the present invention includes a cylindrical covering body for inserting and covering a wire between a lock body and a locking piece, and a retaining member arranged at a tip portion of the covering body for preventing the inserted wire from coming off. Composed of and. The retaining member is formed of a tubular body, has an outer peripheral surface having a cover main body fitting insertion portion that is inserted into the distal end portion of the coating main body, and an inner peripheral surface that engages with a wire locking piece. It has a protrusion. This engagement protrusion
It is formed so that it can move in the radial direction from a position that is smaller than the outer diameter of the wire locking piece to a position that is larger than the outer diameter of the wire locking piece. It is formed so that it can be maintained at a small position. Then, from the locking piece side of the wire lock, the covering body,
The retaining member can be sequentially inserted into the cylinder to be attached to the wire lock. In addition, the tubular body in the present invention means
The peripheral surface is not limited to a continuous one, but includes one that is vertically divided into two to form a tubular body, or one that is partially cut. Further, the wire includes a chain.

[0006]

In the present invention, the engagement protrusion of the retaining member is
Since it is formed so as to be movable in the radial direction in a range from a position smaller than the outer diameter of the locking piece of the wire to a position larger
In the state where the cover body is not fitted into the fitting insertion portion of the retaining member, the wire locking piece can be passed through the inside of the retaining member. Thus, the cover body and the retaining member can be sequentially set from the locking pieces while the lock body and the locking pieces are attached to both ends of the wire. On the other hand, since the engagement protrusion of the retaining member is formed so that it can be maintained at a position smaller than the outer diameter of the locking piece of the wire by inserting the covering body into the fitting insertion portion of the retaining member, after the setting, Can engage the locking piece of the wire with the engaging projection.
As a result, the wire locking piece does not pass through the inside of the retaining member cylinder, and the tip portion of the covering body and the wire locking piece can be locked.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a partial cross-sectional explanatory view showing a state in which an embodiment of a covering member of the present invention is attached to a wire lock, and FIG. 2 is a perspective view of a retaining member. The covering member 1 of the present invention covers the wire 2 of the wire lock.
In the wire lock used in this embodiment, a lock body 3 having a lock mechanism is attached to a rear end side 2b of the wire 2,
A locking piece 4 for locking the locking fitting portion 3a formed in the lock body 3 is attached to the tip side 2a. The covering member 1 of the present invention includes a cylindrical covering main body 10 which covers the wire 2 between the lock main body 3 and the locking piece 4, and a retaining member arranged at the tip 11 of the covering main body 10. And a member 20.

The cover body 10 is the same as the conventional one, and is made of a bendable synthetic resin, and the cover body attaching portion 3b provided on the lock body 3 is inserted into the cylinder of the rear end portion 12 of the lock body. 3, and the retaining member 20 is fitted in the cylinder of the tip portion 11 and attached. The retaining member 20 is
The wire 2 rear end side 2b once passed through the inside of the cylinder of the covering body 10.
This is because the locking piece 4 is always kept outside the cover body 10 so as not to be hidden inside the cover body 10. As shown in FIG. 2, the retaining member 20 in this embodiment is made of a synthetic resin tubular body, and the tip side of the outer peripheral surface is formed to have a diameter approximately the same as the inner diameter of the tip portion 11 of the coating body 10. Insertion part 2
In addition to the above, the rear end is provided with a flange portion 21 formed to have a diameter larger than that of the covering main body fitting insertion portion 22 and contacting the front end surface of the covering main body 10. On the other hand, the rear end side of the inner peripheral surface is formed with a diameter larger than the outer diameter of the locking piece 4 of the wire 2 to form a locking piece fitting insertion portion 23, and the diameter is smaller than the locking piece fitting insertion portion 23 at the tip. The formed engagement protrusion 24 is provided so that the rear end surface of the locking piece 4 of the wire 2 can be brought into contact with and locked to the locking piece 4. Further, the tip side of the retaining member 20 is
Cutting groove 25 cut from the vicinity of the collar portion 21 to the tip thereof ...
Two pieces 25 are provided at equal intervals in the circumferential direction to form four small pieces, and the engagement projections 24 ... 2 due to the bending of the small pieces.
Each of 4 is movable in the radial direction independently of each other. Therefore, in a normal state, the diameter h formed by the engagement projections 24 is smaller than the outer diameter of the locking piece 4 and larger than the diameter of the wire 2, but the four engagement projections 24 are formed at the same time. When pressed from the inside, its diameter h increases. The number, shape, etc. of the cutting grooves 25 ... 25 are not limited to those in this aspect, but may be appropriately changed by providing, for example, two or three or more.

Next, how to attach the covering member 1 to the wire lock will be described. First, the lock body 3 and the locking piece 4 are attached and set to the front and rear ends 2a and 2b of the wire 2, respectively. Then, from the side of the locking piece 4 attached to the wire 2, the coating main body 10 is passed through the inside of the rear end portion 12 cylinder,
The cover body attaching portion 3b of the lock body 3 is fitted and attached in the cylinder of the rear end portion 12. After that, the retaining member 20 is pushed in from the tip end side where the engagement projection 24 is formed, through the locking piece 4 into the cylinder until the engagement projection 24 passes the rear end surface of the locking piece 4.
At this time, the engagement projections 24 are pressed from the inside by the locking pieces 4, so that the respective small pieces bend outward and the diameter h becomes smaller.
Since it is expanded more than the outer diameter of, it can be easily pushed in. After passing through the rear end surface of the locking piece 4, the elastic force of the small piece returns the diameter h of the engaging projection 24 to a state smaller than the outer diameter of the locking piece 4. After that, the covering body fitting insertion portion 22 of the retaining member 20 is fitted into the tube of the leading end portion 11 of the covering body 10. This completes the attachment. After the completion, the engagement protrusion 24 of the retaining member 20 is covered from the outside by the covering body 10 and is prevented from moving to the outside.
The diameter h does not increase and is maintained in a state smaller than the outer diameter of the locking piece 4. Therefore, the locking piece 4 is not hidden in the cylinder of the tip portion 11 of the covering body 10.

With the above-mentioned structure, it is possible to connect the wire 2 and the lock main body 3 to each other without connecting the wire main body 2 and the lock main body 3 with each other in advance as in the conventional case. The lock main body 3 and the locking pieces 4 can be assembled with the both ends 2a and 2b attached, which facilitates the assembly. Moreover, since the lock main body 3 and the locking pieces 4 can be assembled in a state where they are attached, they can be attached to a conventional wire lock in which the covering member 1 is not set. In this embodiment, the engagement protrusion 24 of the retaining member 20 is replaced by the retaining member 20.
25 and the cutting grooves 25 ... 25 can be easily processed, but the present invention is not limited to this. For example, as shown in FIG. 3, a tubular retaining member 20 and a retaining member. 20 is provided with two engaging projections 30 and 30 which are separate from each other, and the retaining member 20 is provided with engaging projection fitting holes 31 and 31 on the outer circumference. The engagement projections 30 and 30 may be fitted and disposed in the movable member 31 so as to be movable in the radial direction of the retaining member 20, which can be appropriately changed.

[0011]

As described above in the embodiments, in the covering member of the present invention, when the covering body is not inserted in the fitting portion of the retaining member, the wire locking piece is inserted into the retaining member in the cylinder. With the lock body and the locking pieces attached to both ends of the wire, the cover body and the retaining member can be sequentially passed through the locking piece side to set. On the other hand, after the setting, the locking piece of the wire and the engaging projection can be engaged with each other, and the locking piece is not hidden in the cylinder of the tip of the covering body. This allows the lock body and the locking pieces to be attached to the front and rear ends of the wire without connecting the wire to the cover body and the retaining member before connecting the wire and the lock body as in the conventional case. It can be assembled and can be easily performed in a short time.
Further, it can be attached to a conventional wire lock in which the covering member is not set. As described above, the present invention can provide a covering member for a wire lock that can be easily set on the wire portion of the wire lock.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view illustrating a state in which a covering member according to an embodiment of the present invention is attached to a wire lock.

FIG. 2 is a perspective view of a retaining member of a covering member.

FIG. 3 is a perspective view of another embodiment of the retaining member of the covering member.

FIG. 4 is a partial cross-sectional explanatory view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cover member 2 Wire 3 Lock main body 4 Locking piece 10 Cover main body 20 Fall prevention member 24 Engagement protrusion

Claims (1)

[Scope of utility model registration request] 1. A wire lock comprising a lock main body having a lock mechanism on the rear end side of the wire and a locking piece for locking a lock fitting portion formed on the lock main body on the front end side. In the covering member according to the present invention, the covering member has a cylindrical covering body that covers the wire between the lock body and the locking piece and covers the wire, and prevents the wire that is inserted at the tip of the covering body from coming off. The retaining member is formed of a tubular body, has an outer peripheral surface having a cover main body insertion portion to be inserted into the distal end portion of the cover main body, and has an inner peripheral surface with a wire engagement member. It has an engaging projection that engages with the stop piece, and this engaging projection is formed so as to be movable in the radial direction within a range from a position smaller than the outer diameter of the locking piece of the wire to a position larger than the outer diameter of the wire. Is smaller than the outer diameter of the wire locking piece by inserting the The wire lock is formed so that it can be maintained in a closed position, and can be attached to the wire lock by sequentially inserting the covering body and the retaining member into the cylinder from the locking piece side of the wire lock. Covering member.