JPH0325434Y2 - - Google Patents

Description

[Detailed description of the invention] [Summary] A shield clamp structure, in which a fixing member is provided at the cable inlet of the device, and a clamp member having a large number of U-shaped grooves for inserting cables is fixed to the fixing member. allows holding of shielded cables.

[Industrial application field]

The present invention relates to a clamp structure for shielded cables that are drawn into devices such as communication devices and data processing devices.

Conventionally, in communication devices, data processing devices, etc., it has been necessary to prevent internal noise generated from the device from leaking to the outside through signal lines, power lines, etc. brought in from the outside, and to prevent external noise such as static electricity noise. Shielded cables are used for signal lines, power lines, etc. in order to be resistant to noise and prevent malfunctions.

[Conventional technology]

Structures for introducing this shielded cable into the device include an I/O box structure shown in FIG. 6 and a shield clamp structure shown in FIG. 7. The I/O box structure shown in FIG. 6 connects each cable 3 via a connector 4 in an I/O box 2 provided in a frame 1 of the device, and the shield clamp shown in FIG. The structure is such that each shielded cable 5 has its shield part 6 exposed and one cable is connected to the other.
It is fixed to the main frame 7 with a clamp 8.

[Problem that the invention attempts to solve]

The I/O box structure shown in Fig. 6 requires a considerable amount of space and is expensive, while the shield clamp structure shown in Fig. 7 exposes the shielded cables one by one and clamps them to the frame. The problem was that it took a long time to fix it, and it was difficult to work with, especially in narrow spaces.

The present invention was created in consideration of these points, and its purpose is to provide a shield clamp structure that can fix a shield cable with a simple configuration.

[Means for solving problems]

In order to solve the above problems, in the present invention, a fixing member 12 provided at the cable introduction port 11 is provided.
and a clamp member 13 fixed to the fixed member by a fixing means 15, and the clamp member 1
Reference numeral 3 is a bar with a rectangular cross section made of metal and conductive rubber, and has a number of U-shaped grooves 13a, 20a arranged in the longitudinal direction for holding cables, and the metal is exposed in some of the grooves. together with the fixing member 1
2 is conductive rubber, and the conductive rubber is formed in the U-shaped grooves 13a, 20 of the clamp member 13.
It is characterized by protruding from the entrances of the U-shaped grooves 13a and 20a so that the shielded cable inserted in the grooves a can be temporarily held.

[Effect]

By inserting a shield cable with an exposed shield portion into a U-shaped groove of a clamp member made of metal and conductive rubber and fixing it to a fixing member, the shield cable can be fixed with good workability.

〔Example〕

FIG. 1 is a perspective view showing an embodiment of the present invention.
In the figure, reference numeral 10 denotes a bottom plate of the apparatus, in which a cable inlet 11 is bored, and a nickel-plated fixing member 12 is welded to one end of the cable inlet 11. Furthermore, grooves 14 for sliding the clamp member 13 are provided on both sides of the cable introduction port 11. The clamp member 13 has a rod shape with a rectangular cross section, and has a large number of U-shaped grooves 13a arranged in the longitudinal direction.
is formed, and a conductive rubber sheet 13b having a width slightly larger than that is pasted between the surfaces in contact with the fixing member 12, that is, between the grooves, as shown in FIG.
Further, the fixing member 12 and the clamp member 13 are fixed by fixing means 15 such as screws provided at the left and right ends thereof, and the clamp member 13 is further fixed to the bottom plate 10 by screws 16. It's summery.

In this embodiment configured in this way, each shielded cable 17 whose exterior is peeled off to expose the shielded portion 17a is passed through the cable introduction port 11, and then fitted into the U-shaped groove 13a of the clamp member 13, and the conductive rubber Temporarily held by the elasticity of the sheet 13b, the clamp member 13 is slid on the sliding groove 14 and fixed to the fixing member 12 with screws 15, and further fixed to the bottom plate 10 with screws 16 to connect the shielded cable 17. Can be clamped. Note that the clamp member 13 is fixed by the fixing member 1.
2 or the bottom plate 10.

According to this embodiment, even when fixing a plurality of shielded cables, it can be done all at once, which simplifies the work. Furthermore, even if only one of them needs to be replaced, the work will not be hindered and the work will be easy because the parts other than the replaced one are temporarily held with a conductive rubber sheet.

FIG. 3 shows another embodiment of the present invention. The figure shows only the clamp member in a perspective view.

This embodiment differs from the previous embodiment in that the structure of the clamp member 13 is different. The clamp member 13 of this embodiment includes a conductive rubber block 20 having a large number of U-shaped grooves 20a arranged in the longitudinal direction, and a sheet metal plate as shown in FIG. 4 that holds the rubber block 20 and is fixed to a fixing member and a bottom plate. It is constituted by a metal fitting 21. In addition, the conductive rubber block 20
The U-shaped groove 20a has a shape as shown in FIG.
The shielded cable can be temporarily held by the protruding part 20b of the opening, and the rising part 21a of the metal fitting 21 is located at the bottom of the U-shaped groove and makes contact with the shielded cable, reducing the contact resistance of the rubber block alone. It has come to compensate for this. This embodiment configured in this manner has the same effects as the previous embodiment, and is advantageous in terms of cost because the number of parts is small and workability is good.

[Effects of the Invention] As described above, according to the present invention, it is possible to perform shield clamping of a shielded cable with good workability with an extremely simple configuration, and it is extremely useful in practice.

[Brief explanation of drawings]

FIG. 1 is a perspective view illustrating an embodiment of the present invention, FIG. 2 is an enlarged plan view showing the U-shaped groove portion of FIG. 1, and FIG. 3 is a perspective view showing another embodiment of the present invention. Fig. 4 is a perspective view showing the sheet metal fitting, Fig. 5 is an enlarged plan view showing the U-shaped groove portion of Fig. 3, and Figs. 6 and 7 are diagrams illustrating the shielded cable introduction structure of the conventional device. It is. 1 to 5, 10 is the bottom plate of the device, 11 is a cable inlet, 12 is a fixing member, 1
3 is a clamp member, 13a and 20a are U-shaped grooves, 1
3b is a conductive rubber sheet, 15 is a fixing means, 17
2 is a shielded cable, 20 is a conductive rubber block, and 21 is a metal fitting.

Claims (1)

[Scope of utility model registration request] Fixing member 12 provided at cable introduction port 11
and a clamp member 13 fixed to the fixed member by a fixing means 15, and the clamp member 1
Reference numeral 3 is a bar with a rectangular cross section made of metal and conductive rubber, and has a number of U-shaped grooves 13a, 20a arranged in the longitudinal direction for holding cables, and the metal is exposed in some of the grooves. together with the fixing member 1
2 is conductive rubber, and the conductive rubber is formed in the U-shaped grooves 13a, 20 of the clamp member 13.
A shielded cable clamp structure is characterized in that it projects at the entrance of the U-shaped grooves 13a and 20a so as to temporarily hold the shielded cable inserted in the U-shaped grooves 13a and 20a.