JP2010004615A - Sheath material for wiring harnesses - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate excessive tape wrapping to reduce weight, save resources and space, and enhance working efficiency. <P>SOLUTION: A large number of small soft pillared projections 3 are provided at intervals on the surface of a flexible tape-like sheet material 2 that comes on the inner surface side when wrapped around a wiring harness. An adhesive layer is formed on the top 4 of each small pillared projection. Each small pillared projection is in the form of bag filled with air. The projections are constant in height and columnar and arranged in a staggered pattern with a constant pitch. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an exterior material wound around the outer periphery of a wire harness.

  For the purpose of bundling a plurality of electric wires constituting the wire harness, a tape winding with a vinyl tape is usually applied to a necessary portion on the outer periphery of the wire harness. Further, for example, a protective material such as a corrugated tube as described in Patent Document 1 is often attached to a portion that may hit another part when routed to an automobile or the like.

  Further, in addition to the corrugated tube, a soft tape is wound around a portion having special requirements such as prevention of abnormal noise after the vinyl tape is wound.

  5 and 6 show examples in which a vinyl tape is wound around the outer periphery of the wire harness and a soft tape is further wound. FIG. 5 is an external side view, and FIG. 6 is a cross-sectional view.

5 and 6, W is a wire harness, and a vinyl tape T1 is wound around the outer periphery of the wire harness W, and a soft tape T2 made of a cushioning material such as rubber or sponge is further formed thereon. Is wrapped around. Reference numeral 101 denotes a bonding portion at both ends of the soft tape T2, which is generally attached in a protruding shape like an ear.
No. 2000-261932

  By the way, when the soft tape T2 is wound in order to prevent the occurrence of abnormal noise in this way, the portion is double-wound with the vinyl tape T1, so that the weight of the portion increases or the diameter increases. There is a problem to do. In particular, when the soft tape T2 is wound, an extra space is also generated since the bonding portion 101 for fixing protrudes in an ear shape. In addition, since the tape is wrapped twice, the man-hours increase and the productivity deteriorates, and the flexibility (flexibility) decreases, so that the wiring harness is routed to a vehicle or a building. The routing is also worsened.

  In consideration of the above circumstances, the present invention provides a wire harness that can be reduced in weight and resources by reducing the amount of use, and can save space and increase work efficiency by eliminating excessive tape winding. An object is to provide an exterior material.

  In the exterior material wound around the outer periphery of the wire harness, the invention according to claim 1 has a large number of columnar shapes having flexibility on a surface which becomes an inner surface side when wound on the wire harness of the flexible sheet material. The small convex portions protrude from each other at an interval, and an adhesive layer is formed on the top surfaces of the columnar small convex portions.

  The invention according to claim 2 is the exterior material for the wire harness according to claim 1, wherein each of the columnar small convex portions has a bag shape in which air is enclosed.

  The invention of claim 3 is the exterior material for a wire harness according to claim 1 or 2, wherein the columnar small convex portions have a columnar shape with a constant height, and are arranged at a constant pitch. It is characterized by.

  The invention of claim 4 is the exterior material for a wire harness according to any one of claims 1 to 3, wherein the sheet material has a tape shape, and the columnar small convex portions are at regular intervals. It is characterized by being arranged in a staggered pattern.

  According to the first aspect of the present invention, the adhesive layer formed on the top surface of the columnar small convex portion by winding the exterior material around the outer periphery of the wire harness with the surface on which many columnar small convex portions are formed as the inner surface. Thus, the exterior material can be attached to the outer periphery of the wire harness, whereby the wire harness can be bound like a conventional vinyl tape.

  In addition, a large number of flexible columnar protrusions on the inner surface exert a cushioning function, so it can be used instead of the conventional soft tape, and it collides with other parts while binding the wire harness The wire harness can be protected so that no abnormal noise is generated. In other words, since both the function of binding the wire harness and the function of softly protecting the wire harness can be demonstrated, in the case of the conventional example in which vinyl tape and soft tape are wound twice in order to bind and to prevent abnormal noise Unlike the case of the present invention, it is only necessary to wrap only the exterior material of the present invention, and the production efficiency can be improved by reducing the number of steps. Further, since single winding is sufficient, it is possible to reduce the weight and resources, and to eliminate excessive tape winding, so that the wire harness can be kept in a supple (highly flexible) state. Moreover, since the enlargement of the diameter of a wire harness can be prevented, it can also contribute to space saving. In addition, the space-saving can be achieved because the bonding portion protruding in an ear shape does not occur as in the case of winding the soft tape.

  According to the invention of claim 2, each of the columnar small convex portions has a bag shape in which air is enclosed, and the inside is hollow, so that the weight can be reduced accordingly. , Can increase flexibility.

  According to the invention of claim 3, the columnar small convex portions are formed in a columnar shape with a constant height and are arranged at a constant pitch, so that they are more stable than those having a corner like a prismatic column. Easiness of crushing can be exhibited uniformly, and the outer periphery of the wire harness can be evenly wrapped so that the outer surface of the sheet material is not uneven.

  According to invention of Claim 4, since the sheet | seat material which comprises exterior | packing material has comprised tape shape, it can wind spirally with the outer periphery of a wire harness densely or at intervals, and it is exterior material by the winding method. The amount of use can be adjusted. Moreover, since the columnar small convex portions are arranged in a staggered manner at regular intervals, the columnar small convex portions can be brought into contact with the outer periphery of the wire harness with an even distribution.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram of an exterior material for a wire harness according to an embodiment, FIG. 1 (a) is a perspective view showing the overall configuration, FIG. 1 (b) is a partially enlarged perspective view, and FIG. 2 is an outer periphery of the wire harness. 3 is an external side view showing a state in which the outer packaging material is tightly wound, FIG. 3 is an external side view showing a state in which the outer packaging material is roughly wound around the outer periphery of the wire harness, and FIG. It is sectional drawing.

  The exterior material 1 of the present embodiment is wound around, for example, a spiral around the outer periphery of the wire harness W, and the surface of the flexible sheet material 2 that becomes the inner surface side when wound around the wire harness W In addition, a large number of columnar small convex portions 3 having flexibility protrude from each other. Each columnar small convex portion 3 is a bag-like shape in which air is sealed, and has a cylindrical shape with a constant height. An adhesive layer (not shown) is formed on the top surfaces of the columnar small convex portions 3. Further, the sheet material 2 has a tape shape, and the columnar small convex portions 3 are arranged in a staggered manner at a constant pitch. The sheet material 2 and the columnar small protrusions 3 are integrally formed of rubber, soft resin, or the like. In order to obtain the sheet material 2 in which air is sealed in the columnar small convex portions 3, for example, a first sheet in which a recess is formed on the mating surface and a second sheet in which the mating surface is formed flat are bonded together. Can be produced.

  When this exterior material 1 is used, the side on which the columnar small convex portions 3 are provided is used as an inner surface, and is directly spirally wound around a necessary portion on the outer periphery of the wire harness W as shown in FIG. The winding method may be tightly wound as shown in FIG. 2 or may be coarsely wound at intervals as shown in FIG. At that time, the top surface 4 of the columnar small convex portion 3 on the inner surface of the exterior material 1 is pressed against each electric wire of the wire harness W and pasted.

  Thus, since the adhesive layer (not shown) is provided on the top surface 4 of the columnar small convex portion 3 of the sheet material 2 constituting the exterior material 1, it is the same as the case of winding a conventional binding vinyl tape. The wire harness W can be wound while being attached to the outer periphery of the wire harness W, whereby the wire harness W can be bound in place of the conventional vinyl tape. Moreover, since the columnar small convex part 3 protrudingly provided on the inner surface of the sheet material 2 exhibits cushioning properties, it can be used in place of the conventional soft tape, and it collides with other parts while binding the wire harness W. The wire harness W can be protected so that no abnormal noise is generated.

  That is, it is only necessary to wrap only the exterior material 1 in a single layer, and the production efficiency can be improved by reducing the number of man-hours. In addition, since single winding is sufficient, it is possible to reduce the weight and resources, and to eliminate excessive tape winding, so that the wire harness W can be kept in a supple (highly flexible) state. . Moreover, since the enlargement of the diameter of the wire harness W can be prevented, it can also contribute to space saving. In addition, the space-saving can be achieved because the bonding portion protruding in an ear shape does not occur as in the case of winding the soft tape.

  Moreover, in the exterior material 1 of this embodiment, since each columnar small convex part 3 has comprised the bag shape by which air was enclosed inside, and the inside is hollow, it is aiming at weight reduction that much. And increase flexibility.

  In addition, a large number of columnar small convex portions 3 have a columnar shape with a constant height, and are arranged at a constant pitch. The outer periphery of the wire harness W can be evenly wrapped so that the outer surface of the sheet material 2 is not uneven.

  Moreover, in the exterior material 1 of this embodiment, since the sheet | seat material 2 has comprised the tape shape, it can wind spirally densely or at intervals in the outer periphery of the wire harness W, and the exterior material 1 by the winding method. The amount of use can be adjusted. Moreover, since the columnar small convex portions 3 are arranged in a staggered manner at regular intervals, the columnar small convex portions 3 can be brought into contact with the outer periphery of the wire harness W with an even distribution.

  Although the case where the exterior material is formed in a tape shape has been described in the above embodiment, it may be formed in an arbitrary shape such as a strip shape.

It is a figure which shows the structure of the exterior material for wire harnesses of embodiment of this invention, (a) is a perspective view which shows the whole structure, (b) is the partial expansion perspective view. It is an external appearance side view which shows the state which wound the said exterior material around the outer periphery of the wire harness closely. It is an external appearance side view which shows the state which wound the said exterior material around the outer periphery of the wire harness roughly at intervals. It is sectional drawing of the part which wound the said exterior material. It is a side view which shows the double winding location of the conventional vinyl tape and a soft tape. It is sectional drawing of a double winding part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Exterior material 2 Sheet material 3 Columnar small convex part 4 Top surface W Wire harness

Claims (4)

In the exterior material for the wire harness wound around the outer periphery of the wire harness,
A large number of small columnar convex portions having flexibility protrude from the surface of the flexible sheet material on the inner surface side when wound around the wire harness, and these columnar small protrusions are spaced apart from each other. An exterior material for a wire harness, wherein an adhesive layer is formed on a top surface of a convex portion. It is an exterior material for wire harnesses according to claim 1,
An exterior material for a wire harness, wherein each of the columnar small convex portions has a bag shape in which air is enclosed. It is an exterior material for wire harnesses according to claim 1 or 2,
An exterior material for a wire harness, wherein the columnar small convex portions have a columnar shape with a constant height and are arranged at a constant pitch. It is an exterior material for wire harnesses given in any 1 paragraph of Claims 1-3,
An exterior material for a wire harness, wherein the sheet material has a tape shape, and the columnar small convex portions are arranged in a staggered manner at regular intervals.

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