JPH11178168A - Structure of blocking hole for introducing cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve sealed extent of a hole for introducing cables independently of number of cables to be introduced into the hole, and to prevent creeping-in of harmful insects, and especially, to reduce suction of dust in a forced air- cooling type apparatus. SOLUTION: Superimposing on each other an elastic sheet 1 provided with a plurality of slits 2 parallel with the opening portion of a hole 6 for introducing cables and an elastic sheet 3 provided with a plurality of slits 4 parallel with each other and orthogonal to the slits 2, the sheets 1, 3 are attached to an attachment frame 5 to block the opening portion of the hole 6. The cables are passed through a plurality of places wherein the slits 2 of the sheet 1 intersect the slits 4 of the sheet 3 to reduce the area of the foregoing opening portion in this state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for closing a cable introduction hole in a communication device such as an exchange which requires a cable to be drawn into a device.

[0002]

2. Description of the Related Art The structure of a conventional cable introduction portion is formed by removing at least one blocking plate which is divided into a plurality of areas for covering the cable introduction hole and which is equally divided. The cable was passed through the opening.

[0003]

However, in the above-mentioned structure, depending on the amount of the cable to be introduced, the opening may be almost completely formed, and the effect of the closing plate is lost. The air-cooled system has problems such as an increase in dust suction.

[0004] Accordingly, reliability has not been satisfactory.

[0005]

According to the present invention, there is provided an elastic first sheet having a plurality of slits parallel to an opening of a cable introduction hole, and a plurality of parallel slits perpendicular to the slit. A second sheet having elasticity is overlapped and attached to a mounting frame so as to close the opening, and a cable is passed through a plurality of locations where slits of the first sheet and the second sheet intersect. The opening portion is reduced.

[0006]

FIG. 1 is a structural view of a cable introduction part showing an embodiment of the present invention, and FIG. 2 is a sectional view of a main part when a cable is introduced.

1 and 2, an elastic sheet 1 provided with a plurality of parallel slits 2 so as to cover an opening of a cable introduction hole 6 and a plurality of parallel slits 4 orthogonal to the slit 2 are provided. The applied elastic sheet 3 is overlapped and attached to the attachment frame 5 by screwing.

When the cable 7 is passed through the slit 2 of the sheet 1, the slit 2 is expanded around the cable 7.
Further, since the slits 4 of the sheet 3 are orthogonal to each other, the slits 4 are also expanded only at the intersections between the slits 2 and the slits 4.

At this time, the opening of the slit 2 is suppressed by the elasticity and frictional force of the sheet 3 except for the cable passage portion.

[0010]

As described above, according to the present invention, the degree of sealing of the cable introduction hole can be increased without being influenced by the amount of the cable to be introduced. The effect of reducing suction can be expected.

In addition, even when the power cable and the signal cable are separated from each other and the cables are introduced, by using the slits separated from each other, the degree of sealing of the cable introduction hole is increased, and noise interference from the power cable to the signal cable is prevented. It can also be expected to be able to protect it.

[Brief description of the drawings]

FIG. 1 is a structural diagram of an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the embodiment of the present invention.

[Explanation of symbols]

 1,3 sheet 2,4 slit 5 mounting frame 6 cable introduction hole

Claims (1)

[Claims] 1. An elastic first sheet having a plurality of slits parallel to an opening of a cable introduction hole, and a second elastic sheet having a plurality of parallel slits orthogonal to the slit. And a mounting frame that is mounted so that the first sheet and the second sheet overlap each other to close the opening, wherein the slits of the first sheet and the second sheet intersect with each other. A structure for closing a cable introduction hole, wherein the number of openings is reduced when cables are passed through a plurality of locations.