JPH0618363U - Device for preventing bundle collapse of small-diameter wire - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a bundle collapse prevention device for a small-diameter grasping electric wire which prevents the bundle collapse of the electric wire during use and movement by the user. [Structure] The present apparatus is installed in the inner space of the wire bundle 5, and sufficient air is introduced into the balloons 1 and 2 through an air supply port 7. As a result, the protrusion 3 provided on the side surface of the balloon 2 presses the inside of the small bundle to prevent the bundle from collapsing. At the start of using the electric wire, the user installs an appropriate weight 6 on the balloon 1. The wire is inside the grip,
That is, it is taken out from the end 4 of the electric wire on the winding start side while flipping the projection 3. The tubular molded body 9 is installed in order to reduce upward deformation of the balloon 2, and preferably has a size close to the inner diameter of the wire bundle 5. Depending on the decrease of the electric wire,
The balloon 2 is expanded by the pressing of the weight 6 on the balloon 1, and the protrusion 3 continues to press the inside of the small bundle. The bundle collapse can be prevented by moving the wire and storing it with the device installed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bundle collapse prevention device for a small-diameter wire.

[0002]

[Prior art]

 Conventionally, manufacturers of small-diameter electric wires have devised various packaging methods to prevent the collapse of bundles of small-diameter electric wires, but one of them is the storage device for the small-sized electric wires. There is a device to install a rubber balloon in the middle of the center of the wire bundle. (Japanese Utility Model Laid-Open No. 1-147356) However, there is no device for preventing the collapse of the bundle of the small-diameter electric wire for the user of the electric wire during use after unpacking and during movement.

[0003]

[Problems to be solved by the device]

 For the users of the electric wires, the bundles collapsed during use or movement, the electric wires were entangled, the electric wires could not be taken out, and sometimes the electric wires were damaged.

An object of the present invention is to solve the conventional drawbacks and provide a bundle collapse preventing device for a small-diameter gripping electric wire which prevents the bundle collapse of the electric wire during use or movement by a user. .

[0005]

[Means and Actions for Solving the Problems]

 The gist of the present invention is to provide a balloon provided with protrusions inside the wire grip, and install a device so that the internal pressure of the balloon does not drop during work and movement, thereby collapsing the bundle of small-diameter wire. Is to prevent.

That is, the above object of the present invention is to provide a tubular molded body made of a resin having a diameter smaller than the diameter of the space located in the central space of the small-diameter wire, and the outside of the cylindrical molded body. And a balloon made of an elastic body having a large number of protrusions on its outer surface in contact with the inner wall of the space of the electric wire bundle, and the balloon formed in communication with the balloon through a ventilation hole and having a cylindrical shape. This is achieved by a bundle collapse prevention device for small-diameter electric wires, which comprises a balloon installed in the inner space.

As a cylindrical molded body located in the central space of the present invention and made of a resin having a diameter smaller than that of the space, the diameter of the cylindrical molded body is set to be as large as possible, whereby the outer side of the cylindrical molded body is provided. It is desirable to reduce the volume of the balloon made of an elastic body that is in contact with the inner wall of the space of the wire bundle as much as possible. Further, as the cylindrical molded body made of the small-diameter resin, a circular cylindrical shape is most preferable, but a polygonal shape may be used.

As a balloon made of an elastic body, which surrounds the outside of the cylindrical molded body of the present invention and has a plurality of projections on the outer surface of the electric wire bundle, which is in contact with the inner wall of the space, It is intended to prevent the wires from collapsing and entanglement by tightening the wire grip tightly while the wires are loosened from the inner diameter side during use or during use, or during movement. The elastic body used for this purpose is made of rubber, and it is desirable that the large number of projections on the outer surface in contact with the inner side wall of the wire bundle have uneven portions having a size substantially equal to the wire diameter. The thin wire bundle is prevented from collapsing by this projection.

In the present invention, the balloon installed in the inner space of the cylindrical molded body communicating with the balloon through the ventilation hole is a gas supply to the balloon made of an elastic body having a plurality of protrusions on the outer surface. By placing a weight of a certain weight on the inner balloon, the air inside the balloon passes through the ventilation holes and enters the outer elastic balloon, Without decreasing the pressure below a certain value, the outer balloon expands as the inner space of the wire bundle increases with the use of the thin wire, and the wire bundle is pressed with a constant pressure to loosen and tangle the wire. Can be prevented.

[0010]

【Example】

 The present device is installed inside the wire bundle 5, and the balloons 1 and 2 are sufficiently filled with air through the air inlet 7. As a result, the protrusion 3 provided on the side surface of the balloon 2 presses the inside of the small bundle to prevent the bundle from collapsing.

At the beginning of use of the electric wire 4, the user installs an appropriate weight 6 on the balloon 1.

The electric wire is taken out while flipping the projection 3 from the inside of the small bundle, that is, the winding start side.

The cylindrical molded body 9 is installed in order to reduce the upward deformation of the balloon 2, and it is desirable that the cylindrical molded body 9 has a size close to the inner diameter of the wire bundle 5.

In accordance with the decrease of the electric wire, the air of the balloon 2 enters the balloon 2 which is inflated through the ventilation hole 8 by the pressing of the weight 6 on the balloon 1, and the protrusion 3 continues to press the inside of the small bundle. It is possible to prevent the collapse of the bundle by moving the wires and storing them while the device is installed.

[0015]

[Effect of device]

 With the device for preventing collapse of the small-diameter gripping electric wire of the present invention, entanglement of the electric wire does not occur during use, and (1) work efficiency is not reduced due to entanglement.

(2) Loss of electric wire due to entanglement is eliminated.

There are the following effects.

[Brief description of drawings]

FIG. 1 is a side sectional view showing a state in which a bundle collapse prevention device of the present invention is installed on a gripping electric wire before use.

FIG. 2 is a side sectional view showing a situation where the gripping electric wire of the present invention is in use.

[Explanation of symbols]

 1, 2 Balloons 3 Protrusions on the outer surface of the balloon 2 4 Electric wire 5 Electric wire grip 6 Weight 7 Air supply port 8 Vent hole 9 Cylindrical molded body

Claims (1)

[Scope of utility model registration request] 1. A tubular molded body made of resin having a diameter smaller than the diameter of the space located in the central space of the wire, and an outer surface of the tubular molded body which is in contact with the wire. From a balloon made of an elastic body having a large number of projections on the outer surface in contact with the inner wall of the space, and a balloon that is in communication with the balloon through a ventilation hole and is installed in the inner space of the cylindrical molded body. A device for preventing collapse of bundles of small-diameter electric wires.