JP4378243B2 - Cross binding terminal, cross binding structure, and cross binding method - Google Patents

Description

  The present invention relates to a cross-binding structure that can be suitably used to hold a cross-shaped portion that branches or intersects in a cross-like shape or a substantially cross-like shape such as a wire harness in a cross-bonded state, and a cross-hair structure that is preferably used for this. The present invention relates to a binding terminal and a cross binding method.

  As an example of a binding target, for example, a wire harness used in various industrial machines and automobiles can be cited. In this wire harness, a binding band is provided for each appropriate length in order to bundle a large number of electric wires. Used to bind. In this case, in order to firmly bind the portions branched and wired in a T-shape, the wire harness branching portion binding band disclosed in Patent Documents 1 and 2 is used. Patent Document 3 discloses a binding band for a wire harness branching portion that has been improved so that the insertion operation of the band main portion into the lock portion is facilitated. With these branching unit binding bands, the branching part branching in three directions in the wire harness can be satisfactorily held in a binding state.

  In recent years, wire harnesses have become larger and longer due to the increase in electrical equipment and electronic equipment. As the branching part, the main harness part is branched into three directions, or a pair of wire harness parts are three-dimensionally crossed. For example, the number of branches or crosses in a cross shape is increasing. Since the wire harness branching tie band described above cannot be used for such cross-shaped parts, it has conventionally been done manually by winding a tape (adhesive tape such as vinyl tape or silicon tape) in a cross shape and bundling it. Tape wrapping was performed to maintain the cross-shaped portion in a substantially bound state.

  However, the means for winding the tape to maintain the bundling state requires many operations to wind the tape around the wire harness, which takes time and labor compared to the bundling work with a bundling band that can be done only once. At the same time, skill is required. Further, in order to facilitate the bundling work, in the case of using a bundling jig means that temporarily supports the wire harness with a number of Y-shaped jigs implanted on the substrate and lifts the wire harness slightly. In order to wind the tape around the cross-shaped part, the part must be lifted up to remove it from the Y-shaped jig, and the lifting operation is troublesome and troublesome. There has also been a problem that inconvenience of shifting is likely to occur.

In addition, general synthetic resin tapes are subject to changes over time, such as creep deformation and deterioration of the adhesive, and the binding state of the cruciform part becomes unstable or loose over time. The durability (reliability) is somewhat difficult. Thus, there is still room for improvement with regard to binding the cross-shaped portions of the wire harness.
Japanese Utility Model Publication No. 63-97279 Japanese Utility Model Publication No. 6-65682 JP 2004-15951 A

  In view of the above situation, the object of the present invention is to perform a simple and quick bundling operation on a cross-shaped portion in a binding target such as a wire harness and to stably maintain a bundling state for a long period of time. As such, it is in providing an improved cross-tie structure. It is another object of the present invention to provide a cross binding terminal suitable for the cross binding structure and a cross binding method.

According to the first aspect of the present invention, in the cross-bundling terminal 1, the band main portion 2 is inserted into the base end of the flexible band main portion 2 from the distal end portion 2a so as to be prevented from coming off. An insertion hole 7 for passing a pair of binding bands V formed by integrally connecting lock portions 3 having insertion locking holes 3a, and a cross shape that branches or intersects in a cross shape or a substantially cross shape in the binding target W. It has a terminal body 1A in which the abutting portion 4 is formed against cracking in part B,
Wherein in the state where the pair of bands main portion 2, 2 into the insertion hole 7 is inserted, the insertion hole 7, overlap and if their band main portion 2, 2 to each other, and can be configured to intersect the pair The band main portions 2 and 2 are formed in a single hole that can be freely adjusted and set to an arbitrary relative angular posture ranging from a parallel posture that overlaps each other and a cross posture that is orthogonal or substantially orthogonal to each other. Features.

Invention, in cross bundling terminal 1 according to claim 1, in the terminal body 1A, the clamp portion 1B for locking the bundled-W to the support member 21 is provided according to claim 2 It is characterized by.

  (A) According to the present invention, a cross-shaped portion to be bound is formed using a cross-binding band composed of a cross-binding terminal and a pair of binding bands in which the main band portion is inserted through the insertion hole. It is a means of cross binding. In other words, since the cross-shaped part to be bound such as a wire harness can be cross-bound using a pair of binding bands, it is only necessary to insert the band main part into the lock part and perform the tightening operation as a binding operation. To release the bundling, a simple process of removing the band main part from the lock part or cutting the band main part is sufficient. As a result, as compared with the conventional means in which the tape is wound around the cross-shaped portion, the bundling operation can be performed easily and quickly, and the bundling state can be improved so that the bundling state can be stably maintained for a long time.

  According to the first aspect of the present invention, a cross binding terminal for obtaining the effect (A) is defined, and by forming an insertion hole through which the main band part can be inserted, the binding band is independent of each other. Therefore, it can be constructed as one small part, which is advantageous in handling and transportation, and can be produced at low cost. Since the band main part can be inserted freely, the position of the binding band with respect to the cross binding terminal can be adjusted freely, and the position of the lock part and the band main part with respect to the cross-shaped part can be adjusted to perform winding operation and binding There is also an advantage that it can be set to a position and posture that can be easily operated. Further, since the pair of binding bands intersect at the cross binding terminal and the relative positions thereof are determined, there is also an advantage that a stable cross binding state is maintained without positional deviation.

According to the invention of claim 1, the convenience of performing the insertion operation of the two band main portions in one action of inserting the band main portions of the pair of binding bands into the insertion holes in a parallel posture in which they are overlapped. Since the insertion hole is a single hole, the pair of band main portions can be inserted and surely inserted and operated. Then, after the band main part is inserted into the insertion hole, the pair of band main parts are rotated in a direction away from each other so that they are orthogonal or substantially orthogonal to each other, that is, an attitude suitable for binding the cross-shaped parts. Can be. As a result, it is possible to provide an excellent cruciform bundling terminal that contributes to good cruciform bundling while allowing the bundling band insertion operation to be performed easily, reliably, and quickly.

According to the second aspect of the present invention, it is possible to clamp the cross binding terminal, that is, the cross binding portion to be bound, to the support member by using the clamp portion provided in the terminal body. Thereby, for example, there is an advantage that the structure can be supported at a low cost or in a compact manner as compared with the means for supporting the cross-binding terminal on the support member using the dedicated support means.

  Embodiments of a cross binding structure and a cross binding method for a binding target branch portion according to the present invention and a cross binding terminal used therefor will be described below with reference to the drawings. First, a cross binding band used for binding a cross-shaped portion B (an example of a cross-shaped portion that branches or intersects in a cross shape or a substantially cross shape in a binding target) in a wire harness (an example of a binding target) will be described.

( Example)
As shown in FIG. 1, the cross binding band A is composed of three parts, a pair of binding bands V and V, and a cross binding terminal 1 through which these bands are inserted, and a cross-shaped portion B ( 8 and 9). The cross-shaped portion B is formed by bifurcating each other at the three-dimensional intersection of the electric wire r. However, the group of electric wires r is bifurcated in opposite directions, or branched into three forks, or the three-dimensional intersection of the electric wire r. A structure called a point may be used. The binding band V is inserted into the base end of a band main portion 2 made of a synthetic resin material having flexibility such as nylon or polypropylene, and the band main portion 2 is inserted from the tapered tip end portion 2a so as not to come off. This is a known band in which a lock portion 3 having an insertion locking hole 3a to be locked is integrally connected.

  As shown in FIGS. 1 to 4, the cross binding terminal 1 includes a terminal main body 1 </ b> A and a clamp portion 1 </ b> B integrally provided below the terminal main body 1 </ b> A. The terminal main body 1A includes a pair of upper and lower circular walls 4 and 5 and a pair of support columns 6 and 6 that connect and integrate the upper circular wall (an example of a contact portion) 4 and the lower circular wall 5. A portion surrounded by the upper and lower circular walls 4, 5 and the pair of support columns 6, 6 is formed in a single insertion hole 7 for passing a pair of binding bands V. The upper surface 4a of the upper circular wall 4 functions as an abutting portion [see FIG. 2 (b)] addressed to the cross-shaped portion B branching into a cross shape or a substantially cross shape in the wire harness W. The cross binding terminal 1 is made of a flexible synthetic resin material.

  As shown in FIGS. 2 to 5, the shape and size of the insertion hole 7 are such that when the pair of band main portions 2 and 2 are inserted through the insertion hole 7, the band main portions 2 and 2 are mutually connected. It is set so that it can be configured to overlap vertically and intersect perpendicularly in plan view (three-dimensional intersection). That is, as shown in FIG. 3, the insertion hole 7 in the front view has a horizontally long rectangle having a vertical width slightly more than twice the thickness of the band main portion 2, and the insertion hole 7 in the plan view is As shown in the figure, the cross-sectional shape of the pair of support columns 6 is assumed to have a short width having cut surfaces 6a inclined at 45 degrees at both ends, and the width is wider toward the opening end side, and the width is narrowest at the center portion. It is formed in a roughly drum shape. As a result, in a state where the band main portions 2 and 2 are inserted through the insertion holes 7, the pair of band main portions 2 and 2 are in a parallel posture (see FIG. 7) just overlapping vertically, and the pair of band main portions 2. , 2 can be adjusted and set to a cross posture (see the posture shown by the phantom line in FIG. 5) orthogonal to each other with respect to the center position P of the circular walls 4 and 5, and an arbitrary relative angle posture between these two postures. It is.

  The clamp portion 1B includes a skirt portion 8 continuously formed on the lower side of the lower circular wall 5, a support portion 9 projecting downward therefrom, and a pair of engagement pieces that are cantilevered by the support portion 9. 10 and 10. The skirt portion 8 is formed in a circular shape whose outer peripheral side is slightly curved downward and has a larger diameter than the circular walls 4 and 5 in plan view. The support portion 9 has a substantially U-shaped front view (see FIG. 3A) suspended from the central portion of the skirt portion 8, and is engaged from each of the front side and the rear side of the lower end horizontal portion 9a. The combined piece 10 is erected in a cantilever manner. Further, the lower end portion of the support portion 9 is formed to be tapered. The upper end of the engagement piece 10 is formed in a step shape when viewed from the side (see FIG. 4A), and most of the engagement piece 10 is from the front edge 9b of the support portion 9 and from the rear edge 9c. Is cantilevered in a state of protruding later [see FIG. 2B]. That is, each engagement piece 10 is supported so as to be elastically deformable in a state of swinging back and forth with a connection portion with the support portion 9 as a fulcrum.

  The clamp portion 1B is for fitting the cruciform bundling terminal 1 into a fixing member and locking it. For example, as shown in FIG. 6, the clamp portion 1B is formed on an interior plate (an example of a support member) 21 of an automobile. The mounting hole 23 is clamped. That is, the support portion 9 is pushed into the mounting hole 23 while the engagement piece 10 is elastically deformed inward, and the interior plate 21 is sandwiched between the upper end of the engagement piece 10 and the skirt portion 8 that is elastically deformed. The terminal 1 can be locked to the interior plate 21. The clamp portion 1B is not limited to the above-described structure and shape, and various other structures and shapes can be employed.

  In this case, as illustrated on the left side of FIG. 6, when the plate thickness of the interior plate 21 is thin, the interior plate 21 is sandwiched between the uppermost end portion 10 a of the engagement piece 10 and the skirt portion 8. As depicted on the right side, when the interior plate (an example of a support member) 22 is thick, the interior plate 22 is sandwiched between the stepped portion 10 b of the engagement piece 10 and the skirt portion 8. That is, by the cooperation of the step structure at the upper end of the engagement piece 10 and the skirt portion 8 that is elastically deformed, the interior plates 21 and 22 having a plurality of types of thickness can be engaged without inconvenience and can be firmly locked and fixed. Has been devised.

  Next, a bundling method (procedure) for bundling the cross-shaped portion B of the wire harness W, which is an aggregate of many electric wires r, using the cross-bundling band A will be described. In the cross-shaped portion B shown in FIGS. 8 and 9, first, two binding bands V and V and one cross binding terminal 1 are prepared, and both band main portions 2 and 2 are connected to the cross binding terminal. As shown in FIG. 1, a band insertion process is performed to create a cross binding band A composed of these three parts through one insertion hole 7. This band insertion process is performed for the number corresponding to the number of cross-shaped portions B of the wire harness W.

  FIG. 7 shows a jig part for cross binding on the substrate 11, and four Y-shaped jigs 12 planted in a square arrangement on the substrate 11, and at substantially the center position thereof. A terminal stand 13 to be planted on the substrate 11 is provided. A mounting hole (not shown) similar to the mounting hole 23 of the interior plate 21 is formed on the upper surface of the terminal stand 13. By inserting the clamp portion 1 </ b> B into the mounting hole, the cross binding terminal 1. A mounting step of temporarily locking the cross binding band A formed by inserting the pair of binding bands V, V into the insertion hole 7 on the terminal stand 13 is performed. At this time, as indicated by a virtual line in FIG. 7, the pair of binding bands V and V may be rotated and moved to a cross posture in which the band main portions 2 are in an intersecting state. Note that the terminal stand 13 may be one that does not have a mounting hole and that simply mounts the cross-binding terminal 1.

  Next, as shown in FIG. 8, the wire harness W is moved onto the substrate 11, and each harness portion W <b> 1 is placed so that the cross-shaped portion B is positioned on the terminal stand 13, that is, the cross-binding terminal 1. A harness temporary installation step of fitting W2, W3, and W4 into the U-shaped receiving portion 12A of each Y-shaped jig 12 is performed. At this time, as an example, the band main portion 2 of one of the detection bands V is positioned at the first corner portion sk1 formed between the first harness portion W1 and the second harness portion W2, and the second harness portion W2 And the third harness portion W3 is formed between the third harness portion W3 and the fourth harness portion W4. The lock portion 3 of one bundle detection band V is located at the third corner portion sk3, and the other bundle detection band is formed at the fourth corner portion sk4 formed between the fourth harness portion W4 and the first harness portion W1. It is installed in a state where the V band main part 2 is located. It is also possible to lock the cross-binding band A to the terminal stand 13 by slightly lifting the cross-shaped portion B after the wire harness W is installed on the jig 12.

  Then, one band B is moved close to each other by bending and displacing the band main portion 2 located at the first corner portion sk1 and the lock portion 3 located at the third corner portion sk3 together. 2 is inserted into the insertion locking hole 3a of the lock portion 3 from the tip side. That is, the first bundling process is performed in which the wire harness W is wound and bundled in a state extending over the opposite corner portions sk1 and sk3 among the four corner portions sk1 to sk4 formed in the cross-shaped portion B. . When the binding of one binding band V is finished, the other binding band V is bent upward together with the band main portion 2 positioned at the fourth corner sk4 and the lock portion 3 positioned at the second corner sk2. The band main portion 2 is inserted into the insertion locking hole 3a of the lock portion 3 from the distal end side of the band main portion 2 by being displaced from each other. That is, the second bundling process is performed in which the wire harness W is wound and bundled in a state extending between the opposite corner portions sk2 and sk4 of the four corner portions sk1 to sk4 formed in the cross-shaped portion B. .

  Then, as shown in FIG. 9, after the binding bands V are bound, an excision process is performed to cut off the surplus portion 2y of the band main portion 2 protruding from the lock portion 3, and the cross binding operation is completed. The temporary locking state in which the clamp portion 1B is pulled out from the terminal stand 13 is performed when all the bundling operations are completed and the wire harness W is taken out from the substrate 11, but the band surplus portion 2y You may go right after excision.

  The cross binding structure in the cross-shaped portion B that is cross-bound using the cross-binding band A as described above is a state in which the pair of band main portions 2 and 2 are passed through the insertion holes 7 of the cross-binding terminal 1. , The band main portion 2 of one binding band V is connected to the wire harness W in a state extending between the opposite corner portions sk1 and sk3 of the four corner portions sk1 to sk4 formed in the cross-shaped portion B. The band main portion 2 of the other binding band V is opposed to the remaining one of the four corner portions sk1 to sk4. The wire harness W is wound around the corner portions sk2 and sk4 and inserted into the lock portion 3 of the other binding band V to be bound.

  Since the pair of binding bands V and V are simply passed through the insertion hole 7 of the terminal body 1A, the band main part 2 is simply positioned so that the lock part 3 is positioned just before the insertion hole 7. The position of the binding band V relative to the terminal main body 1A can be arbitrarily adjusted, and the crossing angle of the binding bands V and V can be freely selected and set within a range of 0 to 90 degrees. Therefore, the crossing angle of the cross-shaped portion B of the wire harness W that is the object of cross binding can correspond to any angle condition within the range of 90 degrees (orthogonal) to 0 degrees, and can be easily bundled. A convenient and easy-to-handle cross binding band A and a cross binding terminal 1 used therefor can be realized. In addition, by changing the length, thickness, or material of the binding band V, it is possible to satisfactorily bind the wire harness W in accordance with various conditions such as the diameter of the wire harness W and the difference in shape.

  “Cross shape or substantially cross shape” means an X-shape, a ψ-shape, a χ-shape, or a four-way path with a crossing angle close to parallel, as well as an orthogonal or substantially orthogonal state. It is defined as including all forms that intersect at a single point. Furthermore, cross binding is possible even in a form in which five or more binding objects intersect at a single point, and such a portion of five or more differential paths is defined as being included in the category of “cross-shaped portion” in this specification. .

Whole perspective view showing the band for cross binding The terminal for cross binding of Example 1 is shown, (a) is a top view, (b) is a side view, 2 shows the cross binding terminal of FIG. 2, where (a) is a front view and (b) is a bottom view. 2 shows the cross binding terminal of FIG. 2, (a) is a cross-sectional view taken along line BB in FIG. 3 (a), and (b) is a cross-sectional view taken along line A-A in FIG. 3 (a). The top view which shows an insertion hole and a pair of band main part inserted by this Longitudinal sectional view showing the cross binding terminal in a state of being locked and fixed to the interior board Action diagram showing the process of attaching the band for cross binding to the terminal stand Operational diagram showing a state in which the cross-shaped portion of the wire harness is arranged on the cross-binding band The perspective view which shows the state in which the cross-shaped part was cross-bound .

DESCRIPTION OF SYMBOLS 1 Cross binding terminal 1A Terminal main body 1B Clamp part 2 Band main part 2a Tip part 3 Lock part 3a Insertion locking hole 4 Contact part 7 Insertion hole 21 Support member r Electric wire sk1 1st corner part sk2 2nd corner part sk3 Third corner portion sk4 Fourth corner portion A Cross binding band B Cross portion V Binding band W Binding object (wire harness)

Claims (2)

A bundling formed by integrally connecting a lock portion having an insertion locking hole for inserting the band main portion from the distal end portion thereof into a base end of the flexible band main portion and locking the band main portion in a retaining manner. has a through hole for passing a pair of bands, the cross-shaped or terminal body substantially has the abutment against fractures in a cross-like portion that branches or crisscross shape formed in a bundled,
In a state where the pair of band main portions are inserted through the insertion holes, the insertion holes can be configured such that the band main portions overlap and intersect with each other, and the pair of band main portions overlap each other. A cross bundling terminal formed in a single hole that can be adjusted and set to an arbitrary relative angle posture ranging from a posture and a cross posture orthogonal or nearly orthogonal to each other . The cross binding terminal according to claim 1, wherein the terminal main body is provided with a clamp portion for locking the binding target to a support member.

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