JP2017195122A - Electric wire holding bar - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric wire holding bar with novel structure capable of stably maintaining electric wire clamping force by a pair of elastic clamping pieces.SOLUTION: In an electric wire holding bar 10 capable of holding an electric wire 48 in a parallel state, a plurality of electric wire clamps 12 capable of clamping the electric wire 48 between a pair of elastic clamping pieces 18 and 18, and a bar body 14 holding the plurality of electric wire clamps 12 in a linearly arranged state are included, and an elastic member 42 is arranged and held between the adjacent elastic clamping pieces 18 in the electric wire clamps 12 arranged adjacently.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an electric wire holding bar used for holding electric wires in a manufacturing process of a wire harness.

  Conventionally, in a manufacturing process of a wire harness routed in an automobile or the like, an electric wire holding bar that can hold electric wires in a parallel state has been used. For example, in JP-A-8-31247 (Patent Document 1), a plurality of electric wire clamps that can hold an electric wire between a pair of elastic holding pieces and a plurality of electric wire clamps are held in a straight line. An electric wire holding bar having a bar body is disclosed. If such an electric wire holding bar is used, the end portion of the electric wire is fitted between the pair of elastic holding pieces of each electric wire clamp, and the electric wire is clamped to the end of the electric wire. The amount and direction can be maintained in a desired state. Therefore, it is possible to efficiently perform operations such as taking out the electric wire held by the electric wire holding bar with the arm of the automatic machine and moving it to the anticorrosion machine, and applying an anticorrosive to the crimping portion of the crimping terminal. .

  By the way, since electric wires of various diameters are used for the wire harness, electric wires having different diameters are press-fitted into the electric wire holding bar.

  However, since the gap between the pair of elastic clamping pieces is constant, the holding force of the elastic clamping pieces becomes weaker due to the sag of the pair of elastic clamping pieces and the like as the electric wire holding bar is repeatedly used. As a result, when the diameter of the electric wire fitted between the pair of elastic clamping pieces is relatively small, the fitted electric wire may rotate and the orientation of the crimp terminal may not be maintained, and it may be difficult to perform the anticorrosion treatment. was there. In addition, it becomes easier for the electric wire to come off from the electric wire clamp.For example, when the arm of an automatic machine fits the electric wire after anticorrosion treatment into the original electric wire clamp and moves to the next electric wire, the original electric wire is attached to the arm. Accordingly, there is a possibility that the operation of the arm sandwiching the next electric wire becomes difficult because the arm is detached from the pair of elastic clamping pieces.

JP-A-8-31247

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is an electric wire holding bar having a novel structure capable of stably maintaining the electric wire clamping force by a pair of elastic clamping pieces. It is to provide.

  A first aspect of the present invention is an electric wire holding bar that can hold electric wires in a parallel state, and includes a plurality of electric wire clamps that can hold the electric wires between a pair of elastic holding pieces, and a plurality of the electric wire clamps. And a bar main body that holds the linearly arranged state, and between the adjacent wire clamps, an elastic member is disposed and held between the adjacent elastic clamping pieces.

  According to this aspect, between the adjacently disposed electric wire clamps, one elastic clamping piece constituting one electric wire clamp and one elastic holding piece constituting the other electric wire clamp are adjacently arranged opposite to each other. The elastic member is disposed and held in the portion where the head is located. Therefore, when the electric wires are respectively crimped to the pair of elastic clamp pieces of the adjacent electric wire clamps, the pair of elastic clamp pieces are deformed in a direction separating from each other in the linear direction, and the adjacent elastic clamp pieces that are close to each other are deformed. The elastic member disposed therebetween is compressed. As a result, the elastic restoring force of the elastic member adds an auxiliary force in the direction in which the pair of elastic clamping pieces approach each other, and the electric wire fitted between the pair of elastic clamping pieces is stably stabilized with a large clamping force. Can be held. Therefore, the position and orientation of the crimp terminal of the wire terminal fitted between the pair of elastic clamping pieces can be stably held.

  Moreover, the clamping force exerted on the electric wire fitted between the pair of elastic clamping pieces is not only due to the elastic restoring force of the pair of elastic clamping pieces, but also due to the elastic restoring force of the elastic member provided between the adjacent wire clamps. Is also expressed. Therefore, even if the elastic return force decreases due to frequent sag of the pair of elastic clamping pieces, it can be compensated by the elastic return force of the elastic member. And the electric wire clamping force of a pair of elastic clamping piece can be maintained stably over a longer period of time.

  In addition, if the elastic member arrange | positioned between adjacent electric wire clamps is provided between at least one set of adjacent electric wire clamps, it will be included in this invention and the span of a pair of elastic clamping piece is estimated. An elastic member may be provided between the electric wire clamps, but may be provided between all adjacent electric wire clamps to improve the versatility of the electric wire holding bar.

  A second aspect of the present invention is the one described in the first aspect, wherein the elastic member is constituted by a coil spring.

  According to this aspect, since the elastic member is constituted by the coil spring, the electric wire holding force of the pair of elastic clamping pieces can be reinforced more stably for a longer period of time.

  A third aspect of the present invention is the one described in the first aspect, wherein the elastic member is constituted by a rubber elastic body.

  According to this aspect, since the elastic member is comprised by the rubber elastic body, it can arrange | position and hold | maintain more stably between adjacent elastic clamping pieces.

  According to a fourth aspect of the present invention, in the one according to any one of the first to third aspects, the elastic center of the elastic member is located at a portion where the opposing gap is the smallest in the pair of elastic clamping pieces. Aligned.

  According to this aspect, since the elastic center of the elastic member is aligned with the portion where the opposing gap is the smallest in the pair of elastic clamping pieces, the electric wire clamping force by the pair of elastic clamping pieces can be stably balanced. It can be assisted by the elastic member, and the electric wire clamping force by the pair of elastic clamping pieces can be maintained more stably.

  According to the present invention, the elastic member is disposed and held between the adjacent electric wire clamps. Therefore, by crimping the electric wires to the pair of elastic clamping pieces of the adjacent electric wire clamps, the pair of elastic clamping pieces are deformed in a direction separating from each other in the linear direction, and the adjacent elastic pieces approaching each other. The elastic member disposed between the holding pieces is compressed. As a result, the elastic return force of the elastic member can stably hold the electric wire fitted between the pair of elastic clamping pieces with a large clamping force, and the position and orientation of the crimp terminal provided on the wire terminal can be stabilized. Can be held. Moreover, this clamping force is expressed not only by the elastic restoring force of the pair of elastic clamping pieces but also by the elastic restoring force of the elastic member provided between the adjacent wire clamps. Therefore, even if the elastic return force decreases due to frequent sag of the pair of elastic clamping pieces, it can be compensated by the elastic return force of the elastic member. And the electric wire clamping force of a pair of elastic clamping piece can be maintained stably over a longer period of time.

The disassembled perspective view which shows the electric wire holding bar as one Embodiment of this invention. The whole electric wire holding bar shown in FIG. 1 is a side view. The side view which shows the state which hold | maintained the electric wire in the electric wire holding bar shown in FIG. FIG. 4 is a plan view of FIG. 3. It is a side view which shows another aspect of this embodiment, Comprising: The figure corresponded in FIG.

  Embodiments of the present invention will be described below with reference to the drawings.

  First, the electric wire holding bar 10 as one Embodiment of this invention is shown by FIGS. The electric wire holding bar 10 includes a plurality of electric wire clamps 12 and a bar main body 14 that holds the plurality of electric wire clamps 12 in a linearly arranged state. The electric wire clamp 12 and the bar main body 14 are formed separately, and are integrally formed by injection molding or the like with a synthetic resin such as polypropylene (PP) or polyamide (PA). In the following description, “upper” means the upper side in FIG. 2, “lower” means the lower side in FIG. 2, “front” means the left side in FIG. 2, and “rear” means the right side in FIG. Shall.

  The electric wire clamp 12 includes a base portion 16 having a substantially block shape, and a pair of elastic clamping pieces 18 and 18 having a substantially tuning fork shape in a side view and projecting upward from a central portion of the upper surface of the base portion 16. It is configured. The pair of elastic clamping pieces 18, 18 are connected to each other in a state where the elastic clamping pieces 18 having a substantially flat plate shape are opposed to each other, whereby an electric wire 48 described later is interposed therebetween. Is formed to open on both sides in the upper direction and the width direction (direction perpendicular to the paper surface in FIG. 2). More specifically, in the electric wire holding recess 20, a taper-shaped guide portion 22 is formed by a pair of tapered surfaces inclined obliquely downward and inward on the upper end side, while outward toward the center portion. An electric wire housing recess 24 is connected to the tapered guide portion 22 by a pair of recess portions that are recessed in a substantially arc shape in a side view. Further, a slit 26 is formed on the lower end side of the electric wire holding recess 20 so as to be connected to the electric wire receiving recess 24 and extend downward. In addition, a substantially circular elastic member fixing portion 28 is formed at the center of the outer surface in the facing direction of the pair of elastic clamping pieces 18 and 18 so as to open outward in the facing direction.

  The bar main body 14 has a long block shape that extends straight as a whole, and has a support portion 30 provided on the base end side and a substantially bowl-like shape protruding from the upper surface of the support portion 30 along the support portion 30. It is comprised including the electric wire clamp attachment part 32 extended in this. The electric wire clamp mounting portion 32 includes a bottom wall 34 and a pair of side walls 36 that project upward from both widthwise end portions of the bottom wall 34, and is configured to open in the front-rear direction and upward. Has been. Further, a bent wall 38 that protrudes inward in the opposing direction is formed at the protruding end of the pair of side walls 36.

  Next, a procedure for assembling the electric wire holding bar 10 of the present embodiment using the plurality of electric wire clamps 12 and the bar main body 14 configured as described above will be described. First, a substantially mushroom-shaped rubber plug 44 described later is fitted into the rear opening of the wire clamp mounting portion 32 (not shown) of the bar main body 14. Subsequently, the base 16 of the electric wire clamp 12 is inserted from the front opening 40 of the electric wire clamp mounting portion 32 of the bar main body 14 and pushed toward the rear side. Here, the wire clamp attachment portion 32 extending in a substantially bowl shape is formed to be slightly larger than the base portion 16 of the wire clamp 12 in a front view, and a pair of side walls 36 constituting the wire clamp attachment portion 32, The opening width between the 36 bent walls 38 is formed wider than the pair of elastic clamping pieces 18, 18 of the wire clamp 12. Therefore, the electric wire clamp 12 can be easily inserted by sliding it toward the rear side with the pair of elastic clamping pieces 18 and 18 protruding upward from the opening between the bent walls 38. It has become. Moreover, in this embodiment, the coil spring 42 which comprises an elastic member is being fixed in the elastic member fixing | fixed part 28 of the front side of this electric wire clamp 12 so that it may protrude toward the front, for example with an adhesive agent. Therefore, when the electric wire clamp 12 is inserted into the electric wire clamp mounting portion 32 of the bar main body 14 in the same manner, the coil spring 42 fixed to the electric wire clamp 12 inserted first becomes the electric wire clamp 12 inserted next. The coil spring 42 is disposed and held between the adjacent elastic clamping pieces 18 between the adjacent electric wire clamps 12 accommodated in the elastic member fixing portion 28 on the rear side of the electric wire clamp 12. Here, the coil spring 42 disposed and held between the adjacent electric wire clamps 12 is prevented from being excessively compressed and deformed by the contact between the base portions 16 of the electric wire clamps 12. Finally, as shown in FIGS. 1 and 2, after inserting the wire clamp 12 to which the coil spring 42 is not fixed, the mushroom is substantially inserted into the front opening 40 of the wire clamp mounting portion 32 of the bar body 14. The assembly of the electric wire holding bar 10 of the present embodiment is completed by fitting the rubber plug 44 in the shape. In this state, as shown in FIG. 2, the elastic center C of the coil spring 42 is aligned with the portion 46 where the opposing gap is smallest in the pair of elastic clamping pieces 18 and 18.

  As shown in FIGS. 3 to 4, the wire holding bar 10 of the present embodiment configured as described above is configured such that the end of the wire 48 is interposed between the pair of elastic clamping pieces 18 and 18 of the wire clamp 12. It is used in a state where the formed electric wire 48 is inserted into the electric wire holding recess 20 that can hold the electric wire 48. More specifically, when the end of the electric wire 48 is inserted into the electric wire holding recess 20, it first contacts the tapered guide portion 22. When the terminal of the electric wire 48 is pushed further downward in such a state, it is displaced in a direction away from each other around the base end portion to which the pair of elastic clamping pieces 18 and 18 constituting the tapered guide portion 22 are connected. The terminal of the electric wire 48 is allowed to move into the electric wire receiving recess 24 provided so as to be connected to the tapered guide portion 22. And the terminal of the electric wire 48 is hold | maintained in the state clamped in the electric wire accommodation recessed part 24 formed between a pair of elastic clamping pieces 18 and 18. FIG. That is, in the electric wire holding bar 10 of this embodiment, it is possible to hold and hold the ends of the electric wires 48 in parallel (see FIG. 4). As shown in FIG. 4, in this embodiment, a crimp terminal 50 is connected to the end of the electric wire 48. The crimp terminal 50 has a structure in which a terminal fitting 54 is crimped to a core wire 52 exposed at the end of the electric wire 48. And the anticorrosive agent which is not shown in figure from the upper part is applied, and the core wire crimping part 56 by which the core wire 52 was crimped | bonded to the terminal metal fitting 54 is sealed with an anticorrosive agent. Moreover, in order to make an understanding easy, in FIGS. 3-4, the electric wire 48 is described with the virtual line.

  According to the electric wire holding bar 10 having such a structure, by inserting the ends of the electric wires 48 into the pair of elastic pinching pieces 18 and 18 of the electric wire clamp 12 arranged adjacent to each other, the pair of elastic pinching pieces 18 and 18 18 are deformed in a linear direction (left-right direction in FIGS. 3 to 4) so as to be separated from each other, and the coil spring 42 disposed between the adjacent elastic clamping pieces 18 approaching each other is compressed. As a result, an elastic restoring force is generated in the coil spring 42 and an auxiliary force in a direction in which the pair of elastic clamping pieces 18 and 18 approach each other is applied. Therefore, the coil spring 42 is fitted between the pair of elastic clamping pieces 18 and 18. The end of the electric wire 48 can be stably held with a large clamping force. Therefore, since the position and orientation of the crimp terminal 50 connected to the end of the electric wire 48 fitted between the pair of elastic clamping pieces 18 and 18 can be stably maintained, the core wire crimping of the crimp terminal 50 is possible. The anticorrosive agent can be reliably applied only to the portion 56.

  In addition, the clamping force exerted on the end of the electric wire 48 fitted between the pair of elastic clamping pieces 18, 18 is not only the elastic restoring force of the pair of elastic clamping pieces 18, 18 but also between the adjacent electric wire clamps 12. It is also expressed by the elastic return force of the provided coil spring 42. Therefore, even if the elastic restoring force is reduced due to the sag of the pair of elastic sandwiching pieces 18 and 18 due to frequent use, the elastic restoring force of the coil spring 42 can compensate for this. Compared with a structure that does not include the coil spring 42 as a member, the force for clamping the end of the electric wire 48 between the pair of elastic clamping pieces 18 and 18 can be stably maintained over a longer period of time. In addition, since the elastic member is constituted by the coil spring 42, it is possible to reinforce the force for holding the end of the electric wire 48 between the pair of elastic holding pieces 18, 18 for a longer period of time and stably. It is.

  Furthermore, since the elastic center C of the coil spring 42 is aligned with the portion 46 where the opposing gap is the smallest in the pair of elastic clamping pieces 18, 18 (see FIG. 2), the pair of elastic clamping pieces 18, The force of clamping the terminal of the electric wire 48 by the coil spring 42 can be stably and stably supported by the coil spring 42, and the force of clamping the terminal of the electric wire 48 by the pair of elastic clamping pieces 18 and 18 can be maintained more stably. be able to.

  As mentioned above, although embodiment of this invention has been described, this invention is not limited at all by the specific description in this embodiment. For example, in the above embodiment, the coil spring 42 has been described as an example of the elastic member. However, as in another aspect of this embodiment shown in FIG. 5, the elastic member is formed by a substantially cylindrical rubber elastic body 58. It may be configured. The rubber elastic body 58 is integrally formed of a rubber material such as EPDM (ethylene propylene rubber). Also in this case, the terminal of the electric wire 48 can be stably clamped between the pair of elastic clamping pieces 18 and 18. Furthermore, the elastic member is not limited to these members, and any member such as a leaf spring can be adopted as long as it is compressed and generates an elastic restoring force. In addition, the coil spring 42 as an elastic member is fixed to the elastic clamping piece 18 by an adhesive, but is not limited to such a configuration. For example, you may make it fix by inserting the coil spring 42 in the protrusion part protrudingly provided by the elastic clamping piece 18. FIG.

  Moreover, in the said embodiment, although the elastic members 42 and 58 were arrange | positioned between all the adjacent electric wire clamps 12, what is necessary is just to be arrange | positioned between arbitrary adjacent electric wire clamps 12, for example, a pair of elastic members The elastic members 42 and 58 may be provided only between the adjacent electric wire clamps 12 where the sandwiching pieces 18 and 18 are predicted to sag. Furthermore, in the said embodiment, although demonstrated by the structure by which the crimp terminal 50 was connected to the terminal of the electric wire 48, it is not limited to this structure. For example, the present invention can be applied to a simple terminal of the electric wire 48 or a terminal of the electric wire 48 in which the core wire is exposed. In addition, in the above-described embodiment, the elastic center C of the coil spring 42 is aligned with the portion 46 where the opposing gap is the smallest in the pair of elastic sandwiching pieces 18, 18, but is not limited to this configuration. The elastic center C of the coil spring 42 can be aligned at an arbitrary position such as the wire receiving recess 24 of the pair of elastic clamping pieces 18 and 18, for example.

10: Electric wire holding bar, 12: Electric wire clamp, 14: Bar body, 18: Elastic clamping piece, 42: Coil spring (elastic member), 46: Site, 48: Electric wire, 58: Rubber elastic body (elastic member)

Claims (4)

An electric wire holding bar that can hold electric wires in parallel,
A plurality of electric wire clamps capable of holding the electric wire between a pair of elastic holding pieces;
A bar body that holds the plurality of wire clamps arranged in a straight line; and
An electric wire holding bar, wherein an elastic member is disposed and held between the adjacent elastic clamping pieces between the adjacent electric wire clamps.   The electric wire holding bar according to claim 1, wherein the elastic member is configured by a coil spring.   The electric wire holding bar according to claim 1, wherein the elastic member is made of a rubber elastic body.   The electric wire holding bar according to any one of claims 1 to 3, wherein an elastic center of the elastic member is aligned with a portion where the opposing gap is smallest in the pair of elastic clamping pieces.

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