JPH0811021Y2 - Door wiring tools - Google Patents

Description

[Detailed Description of the Invention] {Industrial field of application} The present invention, when an electric lock or other electric device is attached to a door attached to a doorway of a building, supplies electric power to the electric lock or the like. The present invention relates to a wiring tool for attaching a cord to a door that is a part and a fixed body such as a door frame or a pillar to which the door is attached.

{Prior Art} As a wiring tool for a door and its fixed body, for example, one shown in FIG. 6 is known.

In FIG. 6, 11a and 11b are a pair of rectangular mounting plates that are mounted opposite to a door (not shown) and a fixed body (not shown) such as a door frame to which the door is attached, each of which is provided on the plate. Covering the long receiving holes 12a, 12b, the mounting plates 11a, 1
Storage boxes 13a and 13b are provided in 1b. Reference numeral 14 is a coil spring, both ends of which are attached to attachment holes (not shown) provided in the upper walls of the housing boxes 13a and 13b, and a straight lead wire 15 is inserted into the coil spring 14.

And, the coil spring 14 is set to be sufficiently longer than the distance between the door and the fixed body when the door is opened to the maximum, and the lead wire 15 inserted is pulled when the door is opened. There is no length.

Therefore, when the doors are closed and the mounting plates 11a and 11b come close to each other, the coil spring 14 and the lead wire 15 bend and bend, so that when the coil spring 14 bends in this bifold shape, the coil spring 14 passes and is accommodated. If possible, the accommodation hole 12
The lengths of the a and 12b and the storage boxes 13a and 13b are set.

{Problems to be solved by the invention} In the conventional wiring tool, the coil spring 14 expands and contracts, but the lead wire 15 does not expand and contract. Therefore, when the door is opened, the maximum distance between the door and the fixed body is not less than Since the coil spring 14 of the length is attached to the mounting plates 11a and 11b,
When the door is opened, the coil spring 14 appears to bend greatly, which causes a bad appearance.

Moreover, although there is a difference in degree, since the door is opened and closed while the coil spring 14 is always flexed, if the coil spring 14 is in a slightly abnormal state, the coil spring 14 is placed inside the storage boxes 13a, 13b. If it does not enter, it will be sandwiched between the mounting plates 11a and 11b and the lead wire 15 will be cut,
Problems such as obstacles to closing the door may occur.

In addition, since the coil springs 14 that are bent in the two-fold shape are stored, the storage boxes 13a and 13b become considerably long, so it is necessary to provide a large recess for inserting the storage boxes 13a and 13b in the door and the fixed body. There is a problem that the work is complicated and requires a lot of labor. And the mounting plates 11a, 11b are
Generally, it is installed higher than the mounting position of electric locks,
And since a hinge for supporting the door is attached in the vicinity thereof, the recess provided for inserting the storage boxes 13a, 13b,
There is also a problem that hinders hinge attachment.

The present invention solves the above problems, and when the door is opened, the coil spring exposed between the door and the fixed body is shortened to improve the appearance, and when the door is opened and closed, the It is an object of the present invention to provide a door wiring tool which is easy to attach to a door and a fixed body, without making the coil spring pinched and breaking.

{Means for Solving the Problem} In the door wiring tool of the present invention, a circular support hole is provided in each of a pair of support members that are attached to face the door and a fixed body to which the door is attached. Slidably inserted into the support hole of each, fixing each end, and the cord is inserted into the coil springs attached to the pair of support members, and the coil spring and the cord are individually expandable and contractible to open the door. When the door is closed, the door is extended to absorb the moving distance of the door, and when the door is closed, the door is contracted to be housed in the support member.

It is also preferable to project a support pipe having a circular cross section as a support hole from the support member, and insert a coil spring into the support pipe to attach it.

The support hole of the support member may be formed integrally with the attachment member, or may be formed by attaching a pipe or the like formed separately from the support member to the support member, and the coil spring may be provided so as to be supported.

{Operation} In this wiring tool, one of the pair of support members is attached to the door and the other is attached to the fixed body. Then, when the door is opened, the cord that is spirally swung together with the coil spring expands due to elastic deformation, and these lengths correspond to the distance between the door and the fixed body, and the coil spring and the cord are elastic. Because it is stretched due to deformation, its repulsive elasticity keeps it in a substantially straight state and hardly bends. As the door is closed and the gap between it and the fixed body becomes smaller, the coil spring and cord also contract due to the repulsive elastic force, and when the door is completely closed, the coil spring and cord return to their original contracted state. It is stored in the support member.

{Embodiment} A first embodiment of the door wiring tool of the present invention will be described with reference to FIGS.

In FIGS. 1 and 2, 1a and 1b are support members made of rectangular plates, 2a and 2b are support pipes as circular support holes penetrating and attached to the support members 1a and 1b. Made of plastic. 3 is a support pipe 2a, 2b
With an expandable coil spring slidably inserted in, each end of the coil spring is locked to the end of the support pipe 2a, 2b,
It is attached to the support members 1a and 1b in a erected manner. And
The length of the coil spring 3 includes a supporting member for the fixed body and the door.
Support pipes 2a, 1a, 1b installed and the door closed
It is set to the size between the fixed body of 2b and each end located inside the door.

Reference numeral 4 denotes a cord inserted through the coil spring 3, which is configured to be spirally swiveled and elastically deformable. 5a and 5b are end pieces of the coil spring 3, which are locking pieces attached to the cord 4, which support pipes.
It is locked to 2a and 2b to prevent the cord 4 from sliding.

In addition, in FIG. 1, the support members 1a and 1b are slightly separated,
The coil spring 3 and the cord 4 are shown in a slightly extended state, and when the support members 1a and 1b are brought close to each other, the coil spring 3 and the cord 4 contract to their original states.

In this wiring tool, as shown in FIG. 2, for example, the support member 1a is attached to a fixed body A such as a door frame, and the one end side of the cord 4 and the support pipe 2a are inserted into the attachment holes B to attach the fixed member to the fixed body. A
The door C is attached to the door with a hinge (not shown), and the attachment hole D is attached to the door C.
Insert the other end of the cord 4 and the support pipe 2b into and attach it. Then, when the door C is opened and the distance between the support members 1a and 1b becomes large, the coil spring 3 and the cord 4 expand within their elastic limits, so that the distance between the fixed body A and the door C is increased. The code 4 is prevented from being pulled by force. Further, when the door C is opened, the coil spring 3 is constantly subjected to the repulsive elastic force, so that the coil spring 3 is always maintained in a substantially straight state without being bent, so that the externally visible portion is reduced and the appearance is improved.

When the door C is closed, the coil spring 3 and the cord 4 are contracted by the repulsive elastic force in response to the rotation of the door C, and the original state is restored. Therefore, when the door C is closed, the coil spring 3 and the cord 4 are deflected, and a part of them is sandwiched between the fixed body A and the door C to cut the cord 4, or an obstacle to closing the door C. There is no fear of becoming.

The diameter of the support pipes 2a and 2b may be slightly larger than the outer diameter of the coil spring 3. Therefore,
The length of the supporting members 1a, 1b can be made much shorter than that of the mounting plate of the conventional example, and the mounting holes B, D provided in the fixed body A and the door C are also considerably reduced, so that the supporting members 1a, 1b are 1b does not hinder the hinge attachment, and the support members 1a and 1b can be easily attached to the fixed body A and the door C.

The locking pieces 5a and 5b attached to the cord 4 prevent the cord 4 from sliding with respect to the coil spring 3, and the door C
It is possible to prevent the spiral portion of the cord 4 from deviating from the coil spring 3 due to the movement of the cord 4 due to the repeated expansion and contraction of the coil spring 3 and the cord 4 by opening and closing.
The repeated movement of the cord 4 prevents the end of the cord 4 from being separated from an electric device such as an electric lock.

However, lengthening the spiral part of code 4,
Alternatively, by fixing a part of the cord 4 to the fixed body A and the door C, it is possible to prevent the spiral portion of the cord 4 from deviating from the coil spring 3 and separate the cord 4 from an electric lock or the like. This can also be prevented by any means such as fixing a part of the cord 4 to the electric lock or the door C. Therefore, attachment of the locking pieces 5a, 5b to the cord 4 can be arbitrarily performed.

FIGS. 3 to 4 show the second embodiment, which is easier than the first embodiment in the case where the distance between the door and the fixed body becomes large when the door is opened. .

In FIGS. 3 to 4, the support member 1a is provided with a support pipe 2a as a support hole penetrating the support member 1a. The support member 1b includes a support portion 7 in which a part is bent in a U shape.
(See FIG. 4) is formed, and a support pipe 2b as a support hole is fixed in the support portion 7. 8 is a support pipe
2b is communicated with and has a diameter smaller than the inner diameter of the support portion 7
It is a through hole provided in.

Then, one end of the coil spring 3 is inserted into the support pipe 2a, the tip is locked to the support pipe 2a, and most of the other part of the coil spring 3 is slidably inserted into the support pipe 2a. The end portion of the support pipe 2b is locked to the rear end portion of the support pipe 2b. The cord 4 swirled in a spiral shape is inserted into the coil spring 3 and penetrates the through hole 8 so that the cord 4 is inserted into the through hole 8.
The end of is locked.

Reference numeral 9 is a ring-shaped locking member attached to a part of the cord 4 for locking the cord 4 to the support pipe 2a. This is a state in which a band wound around the cord 4 is tightened slightly. It is combined with.

In this wiring tool, most of the coil spring 3 is slidably inserted into the support pipe 2b in the support portion 7 projecting from the support member 1b, so that the protruding length of the support portion 7 and the length of the support pipe 2b are increased. Accordingly, the coil spring 3 and the cord 4 in the coil spring 3 can be lengthened.
Therefore, it is easy to lengthen the extension range of the coil spring 3 within the elastic limit, and even when the distance between the fixed body and the open door is large, the coil spring 3 and the cord 4 can be corresponding to the distance. It is easy to expand and contract.

The support portion 7 provided on the support member 1b is the same as the support members 1a and 1a.
It is also possible to provide both of them.

FIG. 5 shows a third embodiment, and this embodiment shows another structure of the support pipe 2b provided on the support member 1b of the second embodiment.

In the third embodiment, a supporting pipe 2b as a supporting hole having a circular cross section is fixedly provided on one side of the supporting member 1b, and a coil spring is inserted into the supporting pipe 2b, though not shown. Then, the end portion is fixed, and the cord swung in a spiral shape is inserted into the end portion.

As described above, the support member 1b has a support pipe 2b having a circular cross section.
Since the support member 1b is provided so as to project, for example, when the support member 1b is attached to a door, a mounting hole having a circular cross section may be provided in the door, so that the mounting hole can be formed easily, and the support member 1b It can be installed easily and efficiently. In addition, it is also possible to project the support pipe having the circular cross-section from each of the support members 1a and 1b.

{Effect of the Invention} As described above, the door wiring tool of the present invention has the coil spring slidably inserted into the circular support holes provided in the pair of support members, and both ends thereof are fixed. The coil is inserted through the spring, and the coil spring and the cord are independently expandable and contractible, and when the door is opened, the coil spring and the cord are extended to absorb the moving distance of the door, and when the door is closed, the cord is contracted and stored in the support member. Is configured.

Therefore, when the door is opened, the repulsive elastic force always acts on the coil spring, and the coil spring always maintains a substantially linear state without bending, so that there are few parts visible from the outside and the appearance is improved. Also, when the door is closed, the coil spring and the cord contract to the original state due to the repulsive elastic force in response to the rotation of the door, so that the coil spring and the cord do not bend when the door is closed. Therefore, a part of the cord is held between the fixed body and the door, the cord is not cut, and the coil spring does not obstruct the closing of the door.

Further, since the support holes of the respective support members may be provided with a diameter through which the coil spring can be inserted, the length of each support member can be shortened, and the mounting holes provided in the fixed body and the door can be made small. The hinge for supporting the door is not hindered, and the support member can be easily attached to the fixed body and the door.

[Brief description of drawings]

1 and 2 show a first embodiment of the present invention, FIG. 1 is a sectional view, FIG. 2 is a sectional view in use, FIGS. 3 to 4 show a second embodiment, and FIG. A sectional view, FIG. 4 is a perspective view of a supporting member, FIG. 5 is a perspective view of a third embodiment, and FIG. 6 is a perspective view of a conventional example. 1a, 1b: support member, 2a, 2b: support pipe, 3: coil spring, 4: cord.

Claims (2)

[Scope of utility model registration request] 1. A circular support hole is provided in each of a pair of support members attached to the door and a fixed body to which the door is attached, and the support holes are slidably inserted into the support holes so that the respective end portions are slidable. A cord is fixedly inserted into the coil springs attached to the pair of support members, and the coil spring and the cord are individually expandable and contractible, and when the door is opened, the cord is extended to absorb the movement distance of the door, A wiring tool for a door, which is configured so that it contracts when the door is closed and is housed in the support member. 2. A door wiring tool according to claim 1, wherein a support pipe having a circular cross section is projected from one side of the support member, and a coil spring is inserted into the support pipe.