JP2895027B2 - Bushing for cable fixing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bushing for fixing a cable to a wall surface of a sheet metal housing, and more particularly to a bushing for fixing a cable having connectors which cannot be detached at both ends.

[0002]

2. Description of the Related Art As a method for protecting and fixing a cable through a cable on a wall surface of a sheet metal housing, a strain relief bushing is generally used. A cable is passed through a hole provided on the wall surface, and the cable is sandwiched by the strain relief bushing. There is a method to fix to. However, in the case of the cable 9 having the non-detachable connectors 14 at both ends as shown in FIG. 4, the cable 9 cannot be passed through the hole, and the above method cannot be used.

In such a case, a method is conceivable in which a notch 11 is provided from the wall of the sheet metal housing 10 as shown in FIG.

In Japanese Patent Application Laid-Open No. 64-89506, the insulating bushing has a tubular structure, and a plurality of holding projections are provided on the outer periphery of the tubular material so that the cable is sandwiched and fixed to the housing wall surface. It is possible to do.

In Japanese Unexamined Utility Model Publication No. 59-93182, a flat bushing can be wound around a cable, and the bushing can be fixed by aligning the groove of the bushing with the cutout and fastening it with an insulated tie.

[0006]

SUMMARY OF THE INVENTION In the prior art,
As shown in FIG. 3, the cable 9 is passed through the notch 11 of the sheet metal casing 10, and the cord clamp 12 is provided inside the casing.
When fixing, it takes time and effort to fix. Cable 9
This is because a cord clamp 12 for fixing the cable 9 inside the sheet metal housing and a protective material 13 for protecting the cable 9 from the cross section of the notch 11 are required.

Further, in Japanese Patent Application Laid-Open No. 64-89506, the fixing work is troublesome due to the flat bushing.
This is because the flat bushing is adjusted to the notch while keeping the shape of the bushing in a circular shape, and the end is tightened with an insulator tie.

The present invention aims at securing a cable having connectors that cannot be detached at both ends to a sheet metal casing, by quickly fixing the cable to a notch provided in the casing, and at the same time, protecting the casing. It provides bushings.

[0009]

SUMMARY OF THE INVENTION A cable fixing bushing of the present invention has a plurality of projections on an inner wall for holding a cable having non-detachable connectors at both ends,
A cable fixing bushing having a tubular body having a plurality of pressing protrusions on the outer wall that abuts an inner wall surface of a sheet metal housing and having a cut portion for inserting the cable through a part of the barrel.
In, provided integrally with the end portion of the tubular body, has a cutting portion for inserting the cable, and the flanged end plate located on the outer wall surface side of the sheet metal casing, the flange-like end plate And a holder that slides and fits on the outer wall surface side of the sheet metal housing to apply a holding force of the cable to the protrusion of the tubular body.

In this configuration, the cylindrical body, the flange-shaped end plate and the holder are made of synthetic resin.

Further, the tubular body and the flanged end plate may have flexibility, and the tubular body and the flanged end plate may be integrally formed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described in detail with reference to the drawings. Referring to FIGS. 1 and 2, the bushing body 1 and the holder 2 are formed using a flexible synthetic resin, for example, nylon. Bushing body 1
A plurality of holding protrusions 4 are provided on the outer periphery of the cylinder 3 to form a sandwiching gap 8 with the rear surface of the holder 2. An end plate 5 is provided on the front surface of the tube 3, and a plurality of protrusions 6 for pressing against the cable 9 are provided on the inner periphery of the tube. The holder 2 slide-fits into the end plate 5 to press the end plate 5 from both sides, and at the same time, presses the protrusion 6 on the inner periphery of the cylinder 3 against the cable 9.

This bushing fixes the cable 9 having non-detachable connectors at both ends from one of the notches 11 provided in the sheet metal housing 10. A bushing body 1 made of a flexible resin is a cylinder 3 having a cut portion on a part of the circumference.
As a result, a cable 9 is inserted into the inner periphery of the casing, and a plurality of holding protrusions 4 are provided on the outer periphery of the cylinder, and the end plate 5 having a diameter larger than that of the cylinder 3 at the front end of the cylinder and having a cut portion 7 in a part thereof, thereby forming A plurality of protrusions 6 for retaining the position, which are located on the inner circumference of the cylinder and whose inner diameter is slightly smaller than the outer diameter of the cable to be fixed.
Has an inner diameter that is slightly larger than the outer diameter of the end plate at the front of the tube.
The cable 9 is pressed down and fixed by the holder 2 which presses down the bushing body 1 by fitting into the bushing 1.

This bushing has a bushing body 1
The cable 9 can be inserted into the bushing even if there are non-detachable connectors at both ends of the cable 9 to be fixed.

Further, the bushing body 1 has a plurality of pressing protrusions 4 on the outer periphery of the cylinder, and can be pressed and fixed from one side of the sheet metal housing 10.

The cable 9 can be fixed by pressing the end plate 5 at the front end of the bushing body 1 with the holder 2 and pressing a plurality of projections 6 on the inner circumference of the cylinder of the bushing body 1 against the cable 9. .

[0017]

According to the present invention, by providing a cutting portion in a bushing, a cable having non-detachable connectors at both ends can be easily fixed to a notch provided in a sheet metal housing. Time can be reduced. Moreover, the cable can be fixed from one side by the component that presses the end of the bushing, and the mounting operation can be simplified.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention.

FIG. 2 is an external view of a part according to the present invention.

FIG. 3 is a diagram of an example of the related art.

FIG. 4 is a diagram of an example of a cable.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bushing main body 2 Holder 3 Cylinder 4 Pressing protruding piece 5 End plate 6 Projection 7 Cutting part 8 Nipping gap 9 Cable 10 Sheet metal housing 11 Notch 12 Code clamp 13 Protective material 14 Non-detachable connector

Claims (4)

(57) [Claims] An inner wall provided with a plurality of projections for holding a cable having non-detachable connectors at both ends;
A cable fixing bushing having a tubular body having a plurality of pressing protrusions on the outer wall that abuts an inner wall surface of a sheet metal housing and having a cut portion for inserting the cable through a part of the barrel.
In, provided integrally with the end portion of the tubular body, has a cutting portion for inserting the cable, and the flanged end plate located on the outer wall surface side of the sheet metal casing, the flange-like end plate A bushing for fixing the cable , the holder being slidably fitted to the housing, applying a holding force of the cable to the projection of the tubular body, and abutting against the outer wall surface side of the sheet metal housing. 2. The apparatus according to claim 1, wherein said tubular body, said flanged end plate and said holder are made of synthetic resin.
The bushing for fixing the cable described. 3. The bushing for fixing a cable according to claim 2, wherein the tubular body and the flange-shaped end plate have flexibility. 4. The bushing for fixing a cable according to claim 2, wherein said tubular body and said flanged end plate are integrally formed.