JPH0619129Y2 - Cable fixing structure in connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a cable fixing structure for fixing a cable to a connector so as not to be adversely affected by an external force at a connecting portion between a connector contact and the cable.

[Prior Art] It is known that a cable is clamped and fixed by a clamp saddle so that an external force is not directly applied to a connecting portion between the contact and the cable.

The fixing means is generally provided on the cable extraction side of one end of the end bell so as to face a fixing piece which is provided with a through hole and protrudes, and above which is an arc-shaped clamp having an insertion hole facing the through hole. Arrange the saddle and the arc-shaped clamp saddle with a screw hole corresponding to the lower part, screw the tightening rod into the screw hole of the other clamp saddle through the through hole of one clamp saddle and the fixing piece, and move the cable up and down. It has a structure in which it is clamped and fixed by a clamp saddle.

[Problems to be solved by the invention] In the conventional clamping method, even when tightening with the tightening screw rod, the tightening screw rod is inserted into the through hole of the fixing piece, and moreover, the fixing piece and the clamp saddle, and between the through hole and the tightening screw. Since there is a gap in the cable, the cable is loosened with the fixing piece in between, and the force is transmitted to the contact, which adversely affects the connection part. Moreover, the tip of the tightening screw rod may protrude from the clamp saddle when tightened, which may cause unexpected injury.

[Means for Solving Problems] The present invention has been devised in order to eliminate these problems in view of such a situation, and is a fixing device provided facing the left and right sides of the central portion of the insertion end of the end bell. Arrange a pair of clamp saddles that have a pressing part that presses the top and bottom with one piece in between, hold the cable inserted from the insertion port with the upper and lower clamp saddles, and tighten the left and right flanges of this clamp saddle In a cable fixing structure for fixing a tightening cable with a screw rod, the clamp saddle is provided with a threaded hole in one flange portion, and an insertion ring insertable into a through hole formed in a fixing piece is integrally provided, and The flange on the side has an insertion hole for inserting the tightening screw rod, and the clamp saddle is placed upside down with the clamp saddle upside down. It is provided for the purpose of stop and prevention of danger due to the tightening screw rod.

[Embodiment] Next, an embodiment of a cable fixing structure for a connector according to the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a clamp nut that is hinged to the insertion end side of the cable 3 at one end of the connector end bell 2, and the insertion port 4 of this nut 1
On the side, integral fixing pieces 5 and 5 are provided so as to protrude to the left and right of the central portion, and the fixing pieces 5 and 5 have one flange portion 6a and 6b of a clamp saddle 6 to be described later.
An integral insert ring 8 formed by projecting through a screw hole 7 provided in a.
The through holes 5a, 5a are formed so as to fit in.

The clamp saddle 6 is arranged above and below the fixing pieces 5 and 5.

The clamp saddle 6 is formed by a pressing portion 6c that is bent into a trapezoid and presses from three surfaces, and flange portions 6a and 6b on the left and right sides. Projected toward the piece 5 and integrally provided,
On the other hand, the other flange portion 6b is provided with an insertion hole 10 for the tightening screw rod 9 so as to face the through hole 5a.
Continuously, a concave portion 11 for fitting and receiving the insertion ring 8 is provided on the corresponding surface of the insertion ring 8.

[Operation] According to the present invention, the tip of the cable 3 inserted through the insertion opening 4 of the clamp nut 1 is inserted from the insertion opening side of the endbell 2, and each wire of the tip of the cable 3 is connected to the contact in the endbell 2. Further, the clamp nut 1 is screwed and fixed to the insertion opening side of the end bell 2, and then the fixing pieces 5 and 5 which are projected from the clamp nut 1 are attached to the upper and lower sides of the fixing pieces
A pair of clamp saddles 6 and 6 each having a trapezoidal three-sided pressing portion 6c are provided on the outer circumference of the cable 3 with the insertion ring 8 interposed therebetween.
Are arranged so that the left and right sides are opposite to each other, and the insertion rings 8 are inserted into the through holes 5a, 5a of the corresponding fixing pieces 5, respectively, and the upper and lower sides of the cable 3 are sandwiched by the clamp saddles 6, 6, and the clamp saddle 6, The fastening screw rod 9 is inserted from the insertion hole 10 of 6 to be screwed into the screw hole 7 of the insertion ring 8 and the flange portions 6a and 6b of the fastening clamp saddles 6 and 6 are crimped onto the fixing pieces 5 and 5 to fix the cable 3. .

[Effect] According to the present invention, as described above, the pair of clamp saddles having the pressing portion and the left and right flange portions are vertically arranged with the fixing pieces protruding left and right facing the central portion of the end bell on the one end insertion side. In the cable fixing structure in which the cable having the tip connected to the contact in the main body is clamped by the pair of clamp saddles and the flange portion is fixed to the fixing piece by tightening with the screw rod. One flange part of the clamp saddle is integrally provided with an insertion ring provided with a screw hole, the other flange part is provided with an insertion hole into which a tightening screw rod is inserted, and the fixing piece is provided with a through hole into which the insertion ring is fitted. Provide a pair of clamp saddles to the left and right, insert the insert ring through the through hole, hold the cable from above and below, and tighten and fix it with the tightening screw rod from the insert hole. In the structure, the left and right fixing pieces protruding from the clamp nut 1 are provided with through holes 5a into which an insertion ring integrally provided on one flange portion 6a of the clamp saddle 6 is fitted to fix the clamp saddle 6 to the fixing pieces. Place the cables 3 on the left and right so that they are clamped above and below the clamp saddle 6
By inserting the tightening screw rod 9 from the side of the insertion hole 10 of the flange portion 6a, and screwing the screw rod 7 into the screw rod 7, the flange portions 6a and 6b of the clamp saddle 6 are fastened to both sides of the fixing pieces 5 and 5, respectively, and the through hole is formed. Since the insertion ring is fitted and fixed to the 5a, the cable can be reliably fixed without any vertical or horizontal movement. Also, unlike the conventional screw holes, the screw holes are provided on the protruding insertion ring, so the screw rod that is screwed into the screw hole and tightened can be tightened with a short screw rod, and since the tightening screw hole is long, the tip of the tightening screw rod can be tightened. Can be securely tightened without being exposed to the outside, so there is no danger.

[Brief description of drawings]

The drawings show an embodiment of a cable fixing structure for a connector according to the present invention. Fig. 1 is a partially cutaway front view, Fig. 2 is a plan view, and Fig. 3 is a part of Fig. 1. Enlarged view,
FIG. 4 is a perspective view of the clamp saddle. 1 ... Clamp nut, 2 ... Connector end bell, 3
…… Cable, 4 …… Insertion port, 5 …… Fixing piece, 5a ……
Through hole, 6 ... Clamp saddle, 6a, 6b ... Flange portion, 6c ... Pressing portion, 7 ... Screw hole, 8 ... Insertion ring,
9 ... Tightening screw rod, 10 ... Insertion hole, 11 ... Recess

Claims (1)

[Scope of utility model registration request] 1. A fixing piece having a through hole is provided so as to be opposed to and projected from a central edge of a cable insertion opening at one end of the end bell, and the central portion is bent into a trapezoidal shape with the fixing piece interposed therebetween. A pair of clamp saddles formed by providing a pressing portion and a flange portion continuous to the left and right of the pressing portion so as to face each other in the vertical direction, and the flange portions of the pair of clamp saddles face the through hole. And insert holes and screw holes,
The upper and lower clamp saddle insertion holes and screw holes are made to face each other so that the upper and lower left and right positions are opposite to each other, and the upper and lower clamp saddles are inserted through the through holes through the insertion holes drilled on the flange side at one end. In the cable fixing structure, the cable inserted into the main body from the insertion port is clamped from the top and bottom with the tightening screw rod that is screwed into the screw hole provided on the other end side, and is clamped to the fixing piece with each other, the flange on each one end side of the clamp saddle On the screw hole side of the portion, an insertion ring provided with a screw hole is provided so as to integrally project, and on the other end side, an insertion hole into which a tightening screw rod is inserted and a recess into which the tip end portion of the insertion ring is fitted are provided. There is a through hole provided in the fixing piece so that the insertion ring can be fitted and the flange portions of the pair of upper and lower clamp saddles are positioned opposite to each other on the left and right so that the insertion ring passes through the through hole of the fixing piece. Cable fixing structure of the connector for sandwiching fastening the fixing piece insertion free tightening threaded rod from and pinching the cables respectively of the insertion hole side.