JPH0749832Y2 - Wire protector - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an electric wire protector used when an electric wire is passed through an end portion of a sheet metal or a printed circuit board in various electronic and electric devices at the time of wiring.

[Conventional technology]

Generally, at the time of wiring as described above, a U-shaped cutout is often provided at the end of a plate material for the purpose of penetrating an electric wire from the front surface to the back surface of a plate material such as a chassis or a printed circuit board. Since the electric wire may be damaged at the edge of the mouth, the protective equipment as shown in FIG. 5 is used.

The protector shown in FIG. 5 has a groove 4 formed along the lengthwise direction on the outer peripheral surface of a protective frame 3 formed of a plastic having appropriate elasticity and hardness in a U-shape, and is attached to a device. What is fitted to the notch opening portion 2 preliminarily formed at the end of the plate member 1 from the opening side to receive the edge portion 7 of the notch opening portion 2 in the groove 4 and fix the protective frame 3 thereto. so,
The groove 4 is formed over the entire length of the outer peripheral surface so that the protective frame 3 can be completely fitted inside the cutout portion 2. The groove 4 is notched at the bottom of the groove 4 near both ends thereof. Hook-shaped protrusion that fits into the notched step portions 5 formed in the opening of the mouth portion 2
6 and 6 were provided. That is, this protector fits into the cutout opening 2 of the plate member 1 by a simple pushing operation, and receives the edge of the opening 2 in the groove 4 formed on the outer peripheral surface thereof. The structure was simple and easy to use.

[Problems to be solved by the device]

However, this protector has a drawback that rattling occurs when it is used for a thin plate material because the width of the groove cannot cope with the change in the thickness of the plate frame.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electric wire protector capable of eliminating rattling even when the plate material to be attached has a small thickness, in which the above-mentioned drawbacks of the conventional protector are improved.

[Means for Solving the Problems]

The present invention adopts the following configuration in order to achieve the object.

In other words, a plastic with appropriate elasticity and hardness is approximately U
A pair of grooves are formed along the length of the left and right outer surfaces of the protective frame that is formed in a letter shape, and it is pre-formed at the end of the plate material of the equipment to be fitted. In the electric wire protector which attaches the edge of the cutout portion to the groove and fixes the protection frame, one of the pair of grooves is directed from the outer peripheral surface of the bottom of the protection frame to the opening. And the other groove is formed by tilting backward from the bottom of the protective frame toward the opening.

[Action]

Since the present invention is configured as described above, since the pair of groove grooves on the left and right outer surfaces are formed by tilting them in different directions in the front-rear direction, they can be fitted from the opening side of the cutout portion of the plate material. When it is attached, the groove is forced to be almost straight due to the thickness of the plate material, but a reaction force that acts to return to the original collapsed state acts on the plate material.

〔Example〕

Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a front view showing an embodiment of the present invention. FIG. 3 is a side view showing an embodiment of the present invention before being attached to a plate material. Fourth
The figure is a side view of the embodiment of the present invention after being attached to a plate member. As shown in FIG. 1, FIG. 2 and FIG. 3, the protective frame 8 is formed in a substantially U-shape in accordance with the shape of the cutout portion 2 of the plate material 1, and its left and right outer side surfaces 9 are formed. , 10 are formed with a pair of groove grooves 11, 12 for receiving the edge portion 7 of the cutout portion 2. The grooves 11 and 12 are formed continuously from the left and right outer surfaces 9 and 10 on the bottom outer peripheral surface 13 except the central portion, and one of the grooves 11 is directed from the bottom outer peripheral surface 13 of the protective frame 8 to the opening. And the other groove 12 is formed by tilting backward from the outer peripheral surface 13 of the bottom portion of the protective frame 8 toward the opening. A pair of hook-shaped projections 6, 6 that fit into a pair of cutout step portions 5 formed in the cutout opening portion 2 are provided on the bottoms of the left and right outer side surfaces 9, 10. From both ends of the opening of the U-shaped protective frame 8 incline inward, respectively, to prevent the wire from coming off 1
There are 4,15. The gap 16 formed between the tip portions of the slip-out preventing pieces 14 and 15 is such that it can be inserted into the protective frame 8 if the electric wire is exposed to the outside of the opening and pushed into the gap 16. Has been formed.

The wire protector according to the embodiment of the present invention is formed of a plastic (for example, polyamide) having appropriate elasticity and hardness.

Next, the case of attaching the wire protector of the embodiment of the present invention to a plate will be described.

As shown in FIG. 1, when attaching to the cutout portion 2, the bottom outer peripheral surface 13 side is exposed to the opening of the cutout portion 2 and is inserted so as to be aligned with the surface of the plate material 1. The edge portions of the notch opening are received in the line grooves 11 and 12 formed on the outer peripheral surface 13, and they are fitted as they are as guides. Then, when the portion where the projections 6 and 6 are provided reaches the opening of the cutout opening 2, the opening of the protector is bent by utilizing the elasticity of the material, and after passing through this, the restoring force of the material is restored. Then, the projections 6, 6 are cut out and the step portions 5, 5 are projected and locked. At this time, since the groove portions 11 and 12 are formed by tilting from the outer peripheral surface 13 of the bottom portion toward the opening of the protective frame 8 in different directions in the front-rear direction, as shown in FIG. 8
After the wires have been attached to the plate material 1, the grooves 11, 1I are forced to be in a straight direction with each other due to the thickness of the plate material 1. The protector will be attached to the plate member 1 without rattling.

〔effect〕

Since the present invention is configured as described above, it has the following effects.

With the wire protector of the present invention fixed to the edge of the cutout, the groove acts as a reaction force to return to the original collapsed shape against the plate material, so there is no rattling even with thin plate materials. Can be installed. That is, there is an effect that it can correspond to the plate thickness. In addition, it is not necessary to change the distance between the pair of left and right end faces of the cutout portion of the plate material to cope with the change in the plate thickness, and it can be done only by the wire protector, so that there is no need to take a labor for designing the plate material. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention. FIG. 2 is a front view showing an embodiment of the present invention. FIG. 3 is a side view showing an embodiment of the present invention before being attached to a plate material. FIG. 4 is a side view of the embodiment of the present invention after being attached to a plate member. FIG. 5 is a partially cutaway front view showing a conventional protector. Reference numeral 1 is a plate material, 2 is a cutout portion, 3 and 8 are protective frames, 4 and 11 and 12 are groove grooves, 7 is an edge portion, and 9 and 10 are outer surfaces.

Claims (1)

[Scope of utility model registration request] 1. A pair of grooved grooves are formed along the length direction on the left and right outer surfaces of a protective frame formed of a plastic having appropriate elasticity and hardness in a substantially U-shape, and the plate material An electric wire protector for fitting the cutout opening preliminarily formed at the end from the opening side to receive the edge of the cutout opening in the groove and fix the protective frame, one of the pair of groove grooves The groove is formed by tilting forward from the outer peripheral surface of the bottom of the protective frame toward the opening, and the other groove is formed by tilting backward from the outer peripheral surface of the bottom of the protective frame toward the opening. Wire protector to