JP5255987B2 - Wire insert for corrugated tube - Google Patents

Description

  The present invention relates to an electric wire insertion tool for a corrugated tube that allows an electric wire or an electric wire bundle to pass through a cylindrical corrugated tube.

  The corrugated tube described in Patent Document 1 below simplifies the work of inserting the electric wire into the corrugated tube by accommodating the electric wire or the bundle of electric wires in the corrugated tube from the slit provided on the peripheral wall over the entire length. ing.

Japanese Utility Model Publication No. 5-15611

  However, when wiring to a place where high waterproofness is required, the work of winding a protective member such as a tape around the corrugated tube has been complicated.

  This invention is made | formed in view of such a subject, and it aims at providing the electric wire penetration tool for corrugated tubes which can solve the said subject.

In order to achieve such an object, the wire insertion tool for a corrugated tube of the present invention is a wire insertion tool for a corrugated tube that allows a wire or a wire bundle to pass through a cylindrical corrugated tube, It has a bottomed cylindrical insertion part with an insertion port into which the tip is inserted opened at the rear end part, and a housing part that accommodates the electric wire or wire bundle, and the width of the insertion part is reduced toward the tip. A guide portion that guides the insertion portion in the corrugated tube , and the housing portion bulges the upper inner surface and the lower inner surface of the housing portion to the inside, and the electric wires or wire bundles of different sizes Can be accommodated in parallel, and the insertion part is characterized in that a plurality of the insertion openings are aligned and opened in accordance with the accommodation part .
Moreover, the present invention is characterized in that the housing portion has an oval cross-sectional outer shape .
Further, in the present invention, from the lower part of the rear end surface of the insertion part, a receiving part that supports the wire or the wire bundle inserted into the insertion part from the insertion port extends from the lower side , The receiving part has a flat bottom surface .

  According to the present invention, since the electric wire or the electric wire bundle with the tip inserted into the electric wire insertion tool is fed into the corrugated tube, the electric wire or the electric wire bundle can be easily inserted into the corrugated tube. The wiring work using the corrugated tube can be simplified.

Hereinafter, the best mode of the present invention will be described with reference to the drawings.
1A and 1B are views showing a corrugated tube wire insertion tool 1 according to the present embodiment, where FIG. 1A is a plan view, FIG. 1B is a right side view, and FIG. 1C is a state in which the corrugated tube K is inserted. It is sectional drawing. In addition, each direction of the up-down, front-back, left-right used in the following description is shown in each figure used for description.

  The wire insertion tool 1 is made of a metal material such as stainless steel. As shown in FIG. 1, a housing portion 11 that houses the wires C1 and C2 and a guide portion 13 that guides the housing portion 11 in the corrugated tube K. And the receiving part 12 which supports the electric wires C1 and C2 accommodated in the accommodating part 11 from the lower side is provided. The wire insertion tool 1 may be made of resin. The accommodating portion 11 has a bottomed cylindrical shape having an outer shape having a cross-sectional shape substantially equal to the opening shape of the corrugated tube K through which the electric wires C1 and C2 are inserted. In this embodiment, since the corrugated tube K has an oval opening shape in which the upper and lower height directions are formed wider than the left and right width directions, the accommodating portion 11 has an inner diameter of the corrugated tube K. It has an oval cross-sectional outer shape with a slightly smaller outer diameter.

  At the positions of the upper inner surface and the lower inner surface facing each other in the housing portion 11, a bulging portion 121 configured by bulging the upper inner surface and the lower inner surface inside the housing portion 11 is provided. The accommodating portion 11 is divided into a accommodating chamber 111 that accommodates the electric wire C1 and an accommodating chamber 112 that accommodates the electric wire C2 by both bulging portions 121. The storage chambers 111 and 112 have an inner surface shape that matches the cross-sectional shape of the electric wires C1 and C2, and the insertion ports for the electric wires C1 and C2 are arranged on the left and right.

  The receiving part 12 has the same cross-sectional shape as the lower part of the accommodating part 11 and extends rearward from the lower part of the rear surface of the accommodating part 11. The guide portion 13 has an external shape in which the distal end portion of the accommodating portion 11 is reduced in width toward the distal end. In the present embodiment, the upper surface 131a and the lower surface 131b of the guide portion 13 and the left surface 132a and the right surface 132b are flat surfaces that are inclined toward each other toward the distal end side, and have a substantially rectangular cross-sectional shape. And extend forward.

  The wire insertion tool 1 in which the distal ends of the electric wires C1 and C2 are inserted into the accommodating chambers 111 and 112 from the insertion opening opened at the rear end of the accommodating portion 11 is inserted into the corrugated tube K from the distal end side including the guide portion 13. As a result, the corrugated tube K moves while being guided by the guide portion 13. Specifically, when the electric wires C1 and C2 are bent or the corrugated tube K is curved, the left surface 132a or the right surface 132b of the guide portion 13 is connected to the corrugated tube K as shown in FIG. 2, the upper surface 131 a or the lower surface 131 b of the guide portion 13 is brought close to the inner surface of the corrugated tube K to prevent the corrugated tube K from being caught by the wire insertion tool 1. Thus, the wire insertion tool 1 can be moved in the corrugated tube K.

  Next, the electric wire insertion device 2 for inserting the electric wires C1 and C2 through the corrugated tube K using the electric wire insertion tool 1 will be described. 3A and 3B are schematic views showing an outline of the configuration of the wire insertion device 2, wherein FIG. 3A is a plan view and FIG. 3B is a right side view.

  The wire insertion device 2 includes a mounting table 20 on which a corrugated tube K for inserting the wires C1 and C2 is placed, a detection unit 21 that detects the wire insertion tool 1, and an automatic wire feeder that sends the wires C1 and C2 to the corrugated tube K. A feeder 22 and a wire drum 23 around which wires C1 and C2 fed to the wire automatic feeder 22 are wound are provided. The detection unit 21 is a photoelectric sensor provided on both the left and right sides of the mounting table 20, and detects the wire insertion tool 1 on the mounting table 20.

  When the automatic wire feeder 22 sends out the electric wires C1 and C2 wound around the electric wire drum 23 into the corrugated tube K placed on the mounting table 20, the tips of the electric wires C1 and C2 are accommodated in the accommodating portion 11. The wire insertion tool 1 is pushed out by the wires C1 and C2 and moves in the corrugated tube K. When the wire insertion tool 1 passes through the corrugated tube K and is detected by the detection unit 21, the feeding of the wires C1 and C2 by the wire automatic feeder 22 is stopped. In this way, the operation of inserting the wires C1, C2 into the corrugated tube K by the wire insertion device 2 is performed.

  As described above, according to the present embodiment, the tips of the wires C1 and C2 and the corrugated tube are fed into the corrugated tube K by feeding the wires C1 and C2 having the tips inserted into the housing portion 11 of the wire insertion tool 1 into the corrugated tube K. The wires C1 and C2 can be inserted into the corrugated tube K without damaging the inner surface of the corrugated tube K and the wires C1 and C2 while avoiding contact with the inner surface of K. For this reason, an electric wire and an electric wire bundle can be easily inserted in the corrugated tube K without providing a slit. Therefore, the wiring work using the corrugated tube K to a place where high waterproofness is required can be simplified.

  Moreover, according to this embodiment, the electric wires C1 and C2 are collectively inserted into the corrugated tube K by inserting the distal ends of the separate electric wires C1 and C2 into the insertion ports of the storage chambers 111 and 112 opened side by side. Can be made.

  Moreover, according to this embodiment, the electric wire C1 and C2 inserted in the accommodating part 11 is supported by the receiving part 12 from the lower side, and the front-end | tip part of the electric wires C1 and C2 hung down from the accommodating part 11 with its own weight, and a corrugated tube By suppressing the contact with the inner surface of K, the wire insertion tool 1 can be easily moved together with the wires C1 and C2, and the wires C1 and C2 from the accommodating portion 11 can be prevented from falling off. Moreover, the operation of inserting the wires C1 and C2 into the housing portion 11 can be simplified by guiding the wires C1 and C2 inserted into the housing portion 11 with the receiving portion 12.

  Moreover, according to this embodiment, the stainless steel electric wire insertion tool 1 is detected by the detection part 21, and the tip position of the electric wires C1 and C2 is specified based on the detection result, whereby the corrugated tube K is connected to the electric wires C1 and C2. Since the automatic wire feeder 22 can confirm that the tip of the wire has passed, the operation of inserting the wires C1 and C2 into the corrugated tube K can be simplified.

  Moreover, according to this embodiment, the accommodating part 11 has the external shape of the cross-sectional shape substantially equivalent to the opening shape of the corrugated tube K which lets the electric wires C1 and C2 penetrate, and the clearance with the corrugated tube K is minimized. Therefore, the wire insertion tool 1 in the corrugated tube K can be prevented from being inclined in the vertical and horizontal directions with respect to the traveling direction.

  In addition, the quantity of the electric wire or electric wire bundle accommodated in the accommodating part 11 can be suitably changed according to the quantity etc. of the electric wire or electric wire bundle penetrated by the corrugated tube K. For example, the accommodating part 11 may include only the accommodating chamber 111 and have a configuration that can accommodate only one electric wire.

  Moreover, the receiving part 12 does not necessarily need to be provided. Further, the upper, lower, left and right surfaces 131a, 131b, 132a, and 132b of the guide portion 13 do not need to be formed flat, and may be formed from curved surfaces, for example. Further, the upper, lower, left and right surfaces of the guide portion 13 do not need to be formed in a target shape with the opposite surface and the axis of the guide portion 13 sandwiched as in the above embodiment, for example, as shown in FIG. Further, the lengths of the upper surface 131a and the lower surface 131b may be different.

  Moreover, although the said embodiment demonstrated the case where the bulging part 121 was provided also in the receiving part 12, it is good also as a structure which is not provided with the bulging part 121 in the receiving part 12. FIG. Moreover, the arrangement | positioning aspect of the insertion port opened on the rear surface of the accommodating part 11 is arbitrary, and can be defined according to the quantity, size, etc. of an insertion port.

  In the above-described embodiment, the case where the storage chambers 111 and 112 are partitioned by the pair of bulging portions 121 and the both communicate with each other has been described. However, the storage chambers 111 and 112 may be partitioned by a partition wall so that they do not communicate with each other. Moreover, only the insertion port is separated, and the storage chambers 111 and 112 may communicate with each other inside.

It is a figure which shows the electric wire penetration tool of one Embodiment of this invention, (a) is a top view, (b) is a right view, (c) is sectional drawing in the state inserted in the corrugated tube. It is a figure which shows the electric wire penetration tool in a corrugated tube, (a) is a top view, (b) is a right view. It is a schematic diagram which shows the outline of a structure of an electric wire insertion apparatus, (a) is a top view, (b) is a right view. It is a right view which shows the other example of a structure of an electric wire penetration apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric wire insertion tool 11 Housing | casing part 111,112 Storage chamber 13 Guide part C1, C2 Electric wire 12 Receiving part 121 Swelling part 131a Upper surface 131b Lower surface 132a Left surface 132b Right surface 2 Electric wire insertion apparatus 20 Mounting base 21 Detection part 22 Electric wire automatic feeder 23 Electric wire drum

Claims (3)

A corrugated tube wire insertion tool for inserting an electric wire or wire bundle into a tubular corrugated tube,
A bottomed cylindrical insertion part having an insertion port into which a leading end of the electric wire or electric wire bundle is inserted is opened at a rear end part;
A housing portion for housing the wire or the bundle of wires,
The distal end portion of the insertion portion is reduced in width toward the distal end, and includes a guide portion that guides the insertion portion in the corrugated tube ,
The accommodating portion is divided so that the upper inner surface and the lower inner surface of the accommodating portion bulge inwardly, and the electric wires or electric wire bundles of different sizes can be accommodated in parallel.
The corrugated tube wire insertion tool , wherein the insertion portion has a plurality of the insertion openings arranged in parallel in accordance with the accommodation portion and opened . The corrugated tube wire insertion tool according to claim 1, wherein the housing portion has an oval cross-sectional outer shape . From the lower part of the rear end surface of the insertion part, a receiving part that supports the wire or the wire bundle inserted into the insertion part from the insertion port extends from the lower side , and
The corrugated tube wire insertion tool according to claim 1 or 2, wherein the receiving portion has a flat bottom surface .

Images