JP6790920B2 - Fixing structure of sound absorbing sheet for fixing wire harness, wire harness with sound absorbing sheet, and wire harness with sound absorbing sheet - Google Patents

Description

The present invention relates to a sound absorbing sheet for fixing a wire harness used for fixing a wire harness to a fixing object such as a vehicle body, a wire harness with a sound absorbing sheet to which the sound absorbing sheet is attached, and a fixing structure of the wire harness with the sound absorbing sheet. It is about.

Conventionally, wire harnesses have been used in automobiles and the like to transmit electric power and various control signals to various electronic devices. Such wire harnesses are arranged in places such as vehicle doors, roofs, and floors, and are housed between the vehicle body panel and the trim so that they can be assembled in a positioned and fixed state.

By the way, in order to absorb noise transmitted from the outside of the vehicle body panel to the vehicle interior and realize quietness in the vehicle interior, a sound absorbing sheet may be arranged between the vehicle body panel and the trim. As shown in Japanese Patent Application Laid-Open No. 2016-210339 (Patent Document 1), there is known a structure in which a wire harness arranged between a vehicle body panel and a trim is integrated with such a sound absorbing sheet and assembled. Specifically, it has been proposed to sandwich a wire harness between two sheet materials, one sheet material is composed of a sound absorbing sheet formed of a sound absorbing sheet, and the other sheet material is composed of a sound absorbing sheet. It is composed of a thin film sheet attached to the sound absorbing sheet to fix the wire harness to the sound absorbing sheet. By adopting such a structure, it is possible to hold the wire harness in a predetermined position while reducing the noise transmitted from the outside of the vehicle body panel to the vehicle interior by the sound absorbing sheet.

However, in the wiring structure of the wire harness described in Patent Document 1, in addition to the sound absorbing sheet disposed between the vehicle body panel and the trim, the wire harness is smaller than the sound absorbing sheet for newly fixing the wire harness to the sound absorbing sheet. Since the formed thin film sheet is required, it is necessary to prepare two types of sheet materials, and there is an inherent problem that parts management becomes complicated and cost increase is unavoidable.

In addition, it is necessary to fix the sound absorbing sheet to a fixing target or the like provided between the vehicle body panel and the trim with a clamp or the like, which inevitably increases the number of parts and the work man-hours. Further, due to the influence of miniaturization and high density of the vehicle, fixing holes such as clamps may not be provided, which may make it difficult to fix the wire harness integrated with the sound absorbing sheet.

JP-A-2016-210339

The present invention has been made in the background of the above circumstances, and the problem to be solved thereof is a novel structure in which the wire harness can be easily positioned and fixed with a small number of parts by using a sound absorbing sheet. It is an object of the present invention to provide a sound absorbing sheet for fixing a wire harness, a wire harness with a sound absorbing sheet, and a fixing structure of a wire harness with a sound absorbing sheet.

The first aspect of the present invention relating to a wire harness with a sound absorbing sheet is a wire harness and an adhesive surface formed in a sheet shape, one surface of which is a non-adhesive surface and the other surface of which is covered with a release paper. The wire harness has at least two sound absorbing sheets for fixing the wire harness having the same shape, and the wire harness is placed on the adhesive surface on which the release paper of the sound absorbing sheet for fixing the wire harness is peeled off and exposed. On the other hand, the other sound absorbing sheet for fixing the wire harness is overlapped with the adhesive surface of the one sound absorbing sheet for fixing the wire harness on the non-adhesive surface side with the wire harness sandwiched between them. The adhesive surface of the sound absorbing sheet for fixing the wire harness has a base area to which the adhesive is not applied, and the base of the two sound absorbing sheets for fixing the wire harness is closely fixed. The regions are overlapped with each other and fixed by using a fixture .

According to this aspect, at least two sound absorbing sheets for fixing a wire harness having the same configuration and the same shape are used, one adhesive surface of the two sound absorbing sheets for fixing the wire harness is exposed, and the wire harness is sandwiched between them. With a simple structure in which the non-adhesive surface of the other sound absorbing sheet for fixing the wire harness is closely fixed, the wire harness can be positioned and fixed to the sound absorbing sheet simply by preparing two sound absorbing sheets for fixing one type of wire harness. can do. Therefore, the sheet material other than the sound absorbing sheet, which has been conventionally required, becomes unnecessary, the parts management can be simplified, the number of parts can be reduced, and the cost can be reduced.

Moreover, according to the wire harness with a sound absorbing sheet of this embodiment, an adhesive surface covered with a release paper is arranged on the surface side of the sound absorbing sheet attached to the wire harness. As a result, the wire harness can be attached to the fixing target by simply fixing the exposed adhesive surface by peeling off the release paper to the fixing target such as the vehicle body panel or trim without the need for additional fixing tools or the like. It is possible to position and fix it.

As described above, according to the wire harness with the sound absorbing sheet of this embodiment, the sound absorbing sheet for fixing one type of wire harness has a simple structure in which the wire harness is sandwiched between them with the alignment of the adhesive surface aligned. It is possible to position and fix the wire harness with a small number of parts while ensuring sound absorption performance. Further, the sound absorbing sheet for fixing the wire harness has a base region to which the adhesive is not applied on their adhesive surfaces, and the base regions are overlapped with each other and fixed to each other via a fixing tool. Therefore, for example, in the peripheral region of the sound absorbing sheet for fixing the wire harness where the adhesive is easily peeled off, both the sound absorbing sheets for fixing the wire harness can be fixed to each other by using a fixture instead of an adhesive.

A second aspect of the present invention relating to a wire harness with a sound absorbing sheet is that in the wire harness with a sound absorbing sheet according to the first aspect, the sound absorbing sheet for fixing the wire harness has a thick jig insertion hole at the same position. The jig insertion hole of the one wire harness fixing sound absorbing sheet and the jig insertion hole of the other wire harness fixing sound absorbing sheet are provided so as to penetrate in the longitudinal direction, and the wire harness is provided. The fixing sound absorbing sheets are connected in the overlapping direction.

According to this aspect, in the sound absorbing sheet for fixing the wire harness having the same shape, the jig insertion hole is provided at the same position. Therefore, by simply inserting the positioning pin protruding from the positioning jig provided on the drawing plate for wiring the wire harness into the jig insertion hole of the sound absorbing sheet for fixing both wire harnesses, both wires for the wire harness can be arranged. Positioning of the sound absorbing sheet for fixing the harness and positioning of the sound absorbing sheets for fixing the wire harness can be performed collectively, and the manufacturing efficiency of the wire harness with the sound absorbing sheet can be improved.

A third aspect of the present invention relating to a wire harness with a sound absorbing sheet comprises a wire harness and an adhesive surface formed in a sheet shape, one surface of which is a non-adhesive surface and the other surface of which is covered with a release paper. The wire harness has at least two sound absorbing sheets for fixing the wire harness having the same shape, and the wire harness is placed on the adhesive surface where the release paper of the sound absorbing sheet for fixing the wire harness is peeled off and exposed. On the other hand, the other sound absorbing sheet for fixing the wire harness is overlapped with the adhesive surface of the one sound absorbing sheet for fixing the wire harness on the non-adhesive surface side with the wire harness sandwiched between them. The sound absorbing sheet for fixing the wire harness is fitted and closely fixed, and each of the sound absorbing sheets for fixing the wire harness is provided with a jig insertion hole penetrating in the thickness direction at the same position. The jig insertion hole and the jig insertion hole of the other wire harness fixing sound absorbing sheet are connected in the overlapping direction of the wire harness fixing sound absorbing sheet , and the wire harness fixing sound absorbing sheet is connected. In the release paper, a through hole corresponding to the harness insertion hole and a pair of slits parallel to the release direction of the release paper and extending on both sides in the radial direction of the through hole are opened in the through hole. it characterized in that it is provided.

According to this aspect, the sound absorbing sheet for fixing the wire harness is peeled off in a state where the positioning pin protruding from the positioning jig provided on the drawing plate for wiring the wire harness is inserted into the jig insertion hole. When the paper is peeled off, slits extending on both sides in the radial direction parallel to the peeling direction are provided by opening through the through holes of the release sheet. Therefore, the release paper is prevented from being caught by the slit, and the release paper can be easily peeled off in a state where the positioning pin is inserted and arranged in the jig insertion hole, which contributes to improvement of workability. can do.

A fourth aspect of the present invention relating to a wire harness with a sound absorbing sheet is that in the wire harness with a sound absorbing sheet according to any one of the first to third aspects, the release paper faces outward from the adhesive surface. It has a grip portion that protrudes from the surface.

According to this aspect, since the release paper has a grip portion that protrudes outward from the adhesive surface, the grip portion of the release paper is picked to peel the release paper from the adhesive surface. It can be easily done.

A first aspect of the present invention relates to a fixing structure of the sound absorbing sheet with a wire harness, using a sound-absorbing wire harness with sheet according to the first to fourth any one aspect, the other of the wire harness fixing the sound absorbing The adhesive surface of the sheet, which is exposed by peeling off the release paper, is closely fixed to the object to be fixed.

According to this aspect, since it is using the sound absorbing wire harness with sheet according to the first to fourth any one embodiment can be efficiently carried out the positioning of the wire harness with respect to the sound absorbing sheet with a small number of parts , The sheet material other than the sound absorbing sheet, which has been required in the past, is no longer required, the parts management can be simplified, the number of parts can be reduced, and the cost can be reduced.

Moreover, according to the fixing structure of the wire harness with the sound absorbing sheet of this embodiment, the sound absorbing sheet is fixed by closely fixing the exposed adhesive surface of the other wire harness fixing sound absorbing sheet to the fixing target. And the fixing of the wire harness to the fixing target via the sound absorbing sheet is completed. Therefore, the wire harness can be attached to the fixing target by simply fixing the exposed adhesive surface by peeling off the release paper to the fixing target such as the vehicle body panel or trim without the need for additional fixing tools or the like. It is possible to position and fix it.

A first aspect of the present invention relates to a wire harness fixing the sound absorbing sheet is a wire harness fixing sound absorbing sheet used in the production of the sound absorbing sheet with a wire harness according to the first to fourth any one aspect , One surface is the non-adhesive surface and the other surface is the adhesive surface covered with the release paper, which is formed in a sheet shape, and at least two sound absorbing sheets for fixing the wire harness having the same shape. However, it is characterized in that the adhesive surfaces are overlapped and used in a state of being oriented in the same direction.

According to this aspect, since it is using the sound absorbing wire harness with sheet according to the first to fourth any one embodiment can be efficiently carried out the positioning of the wire harness with respect to the sound absorbing sheet with a small number of parts , The sheet material other than the sound absorbing sheet, which has been required in the past, is no longer required, the parts management can be simplified, the number of parts can be reduced, and the cost can be reduced.

According to the present invention, at least two sound absorbing sheets for fixing a wire harness having the same configuration and the same shape are used, one adhesive surface of the sound absorbing sheet for fixing the wire harness is exposed, and the wire harness is sandwiched between them. The wire harness can be positioned and fixed to the sound absorbing sheet only by closely fixing the non-adhesive surface of the other sound absorbing sheet for fixing the wire harness. Therefore, a sheet material other than the sound absorbing sheet, which has been conventionally required, becomes unnecessary, and the number of parts can be reduced and the cost can be reduced. Moreover, since the adhesive surface covered with the release paper is arranged on the surface side of the sound absorbing sheet attached to the wire harness, the release paper is peeled off and exposed without the need for additional fixtures or the like. The wire harness can be positioned and fixed to the fixing target simply by firmly fixing the adhesive surface to the fixing target such as the vehicle body panel or trim. With such a simple structure, it is possible to position and fix the wire harness with a small number of parts while ensuring sound absorption performance.

The perspective view which shows the wire harness with a sound absorbing sheet as the 1st Embodiment of this invention. An exploded view of this embodiment and a perspective view showing a jig used for manufacturing. The side view which shows the sound absorbing sheet for fixing a wire harness used in this embodiment. Perspective view showing the manufacturing method of this embodiment ((a) a state in which one of the sound absorbing sheets for fixing a wire harness is placed on a positioning jig, (b) a wire on an adhesive surface exposed by peeling off a release paper. A state in which the harness is placed, (c) a state in which the other wire harness fixing sound absorbing sheet is overlapped and closely fixed to the adhesive surface of one wire harness fixing sound absorbing sheet with the wire harness sandwiched between them. ). The side view which shows the fixing structure of the wire harness with a sound absorbing sheet using the wire harness with a sound absorbing sheet of this embodiment. The perspective view which shows the other aspect of the sound absorbing sheet for fixing a wire harness used in this embodiment. It is a perspective view for demonstrating another aspect of the sound absorbing sheet for fixing a wire harness used in this embodiment, and is the figure corresponding to FIG. The perspective view which shows the sound absorbing sheet for fixing a wire harness used for the wire harness with a sound absorbing sheet as the 2nd Embodiment of this invention. FIG. 5 is a perspective view showing a wire harness with a sound absorbing sheet of the present embodiment using the sound absorbing sheet for fixing the wire harness shown in FIG. 8, and corresponds to FIG. 1. Side view of FIG.

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

FIGS. 1 to 5 show a wire harness 10 with a sound absorbing sheet as the first embodiment of the present invention. The wire harness 10 with a sound absorbing sheet has a wire harness 12 in which a plurality of electric wires (not shown) are bundled, and two sound absorbing sheets 14 for fixing the wire harness having the same shape. In addition, in FIG. 1, the wire harness 12 is shown by a virtual line for easy understanding. Further, in the following description, the upper part is the upper part in FIGS. 1 to 5, the lower part is the lower part in FIGS. 1 to 5, the front part is the left side in FIG. 5, and the rear part is the middle part in FIG. Suppose to say the right side of.

First, as shown in FIGS. 2 to 3, the wire harness fixing sound absorbing sheet 14 is a sound absorbing material in which the back surface, which is one surface of the sound absorbing material 16 formed in the form of a sheet, is a non-adhesive surface 18. While 16 is exposed, the surface which is the other surface has a structure as an adhesive surface 20, and an adhesive such as a synthetic rubber is applied over the entire surface of the adhesive surface 20. Adhesive portion 22 is formed. Here, the sound absorbing material 16 is made of, for example, a non-woven fabric formed of polypropylene fibers, polyethylene terephthalate fibers, glass fibers, or the like, open cells made of a synthetic resin material such as urethane, felt, or the like. Further, a sheet-shaped release paper 24 is attached to the entire surface of the adhesive portion 22 of the sound absorbing sheet 14 for fixing the wire harness, and the adhesive surface 20 is covered with the release paper 24. Here, the sound absorbing material 16, the adhesive surface 20, the adhesive portion 22, and the release paper 24 have the same shape in a plan view. The release paper 24 includes, for example, a material formed by coating a base material such as woodfree paper with a release agent such as silicone through a sealing layer made of PE (polyethylene) resin or the like, or PET (polyethylene). A sheet-like base material made of terephthalate) resin or the like coated with a release agent such as silicone is used. Further, in FIG. 3, in order to facilitate understanding, the adhesive portion 22 and the release paper 24 constituting the sound absorbing sheet 14 for fixing the wire harness are shown enlarged in the thickness direction (vertical direction in FIG. 3). There is.

Further, as shown in FIG. 2, the sound absorbing sheet 14 for fixing the wire harness has a substantially horizontally long rectangular shape in a plan view, and both sides in the longitudinal direction (in the left and right directions in FIGS. 2 to 3), respectively. A pair of substantially circular cross-sectional jig insertion holes 26, 26 are provided so as to penetrate in the thickness direction (vertical direction in FIGS. 2 to 3) separated in the width direction (vertical direction to the paper surface in FIG. 3). ing. In addition, the release paper 24 of the sound absorbing sheet 14 for fixing the wire harness has a through hole 28 having a substantially circular cross-sectional shape corresponding to the jig insertion hole 26 and the release direction of the release paper 24 (in the left and right directions in FIGS. ), And a pair of slits 30, 30 extending in both radial directions of the through hole 28 are provided so as to open in the through hole 28.

A method of manufacturing the wire harness 10 with a sound absorbing sheet according to the present embodiment using the wire harness fixing sound absorbing sheet 14 having such a shape will be described with reference to FIGS. 1 and 2. First, the positioning jig 32 is prepared. The positioning jig 32 is used, for example, by being provided on a drawing plate for wiring a wire harness (not shown). More specifically, the positioning jig 32 has a substantially horizontally long rectangular box shape in a plan view, and has a substantially horizontally long rectangular flat plate-shaped bottom wall 34 and a bottom wall 34 in a plan view. It is provided with a substantially flat side wall 36 that protrudes upward with a substantially constant protruding dimension over the entire circumference of the peripheral portion of the above, and is formed of a synthetic resin material or the like. As a result, the positioning jig 32 includes a substantially horizontally long rectangular housing portion 38 that is surrounded by the bottom wall 34 and the side wall 36 and opens upward. Further, each of the side walls 36 facing the longitudinal direction (left-right direction in FIG. 2) of the positioning jig 32 is formed so that a substantially rectangular notch 40 opens upward when viewed from the front. .. Further, on both sides of the bottom wall 34 of the positioning jig 32 in the longitudinal direction (left-right direction in FIG. 2), a pair of substantially cylindrical positioning pins 42, 42 separated in the width direction are side walls facing upward. It is projected so as to have substantially the same height as 36.

Next, with respect to the accommodating portion 38 of the positioning jig 32 having such a shape, from above, one of the two wire harness fixing sound absorbing sheets 14 having the same shape, the wire harness fixing sound absorbing sheet 14a Is inserted (see FIGS. 2 and 4 (a)). At this time, the positioning pin 42 projecting from the accommodating portion 38 of the positioning jig 32 is inserted into the jig insertion hole 26 provided in one of the wire harness fixing sound absorbing sheets 14a and placed. As a result, one of the wire harness fixing sound absorbing sheets 14a is positioned and arranged in the accommodating portion 38 of the positioning jig 32. In such a positioned state, the release paper 24 covering the adhesive surface 20 of the sound absorbing sheet 14a for fixing the wire harness is positioned slightly above the bottom surface 44 of the notch 40 of the positioning jig 32. The tool 32 is formed. As a result, the release paper 24 of the sound absorbing sheet 14a for fixing the wire harness can be peeled off, and the wire harness 12 can be reliably placed on the adhesive surface 20 of the sound absorbing sheet 14a for fixing the wire harness.

Subsequently, as shown in FIG. 4A, the release paper 24 of the one wire harness fixing sound absorbing sheet 14a that is positioned and arranged is moved from the front side (the left side in FIG. 4A) to the rear side. (Peel off toward the right side in FIG. 4A) to expose the adhesive surface 20 (see FIG. 4B). At this time, the through holes 28 corresponding to the jig insertion holes 26 of the release paper 24 are parallel to the release direction of the release paper 24 (left and right directions in FIG. 4A) and on both sides of the through holes 28 in the radial direction. A pair of extending slits 30, 30 are provided by opening in the through hole 28. Therefore, when the release paper 24 is peeled off, the slit 30 prevents the release paper 24 from being caught by the positioning pin 42 of the positioning jig 32. Therefore, the sound absorbing sheet 14a for fixing the one wire harness that is positioned and arranged is used. The release paper 24 can be easily peeled off, which can contribute to the improvement of workability.

Then, as shown in FIG. 4B, the wire harness 12 is placed on the adhesive surface 20 where the release paper 24 of the sound absorbing sheet 14a for fixing the wire harness is peeled off and exposed. As a result, the wire harness 12 is arranged so as to be inserted between the notches 40 provided at both ends in the longitudinal direction of the positioning jig 32 and the pair of positioning pins 42, 42 provided apart in the width direction. Therefore, the wire harness 12 can be easily positioned and arranged. Subsequently, as shown in FIGS. 4B to 4C, the other wire harness fixing sound absorbing sheet 14b is adhered to the one wire harness fixing sound absorbing sheet 14a in which the wire harness 12 is positioned. It is placed on the surface 20 with the non-adhesive surface 18 side facing one of the wire harness fixing sound absorbing sheets 14a from above. As a result, the other wire harness fixing sound absorbing sheet 14b is overlapped with the adhesive surface 20 of the one wire harness fixing sound absorbing sheet 14a on the non-adhesive surface 18 side with the wire harness 12 sandwiched between them. It is designed to be closely fixed. That is, two sound absorbing sheets 14a and 14b for fixing wire harnesses having the same shape are used by being overlapped with each other with the adhesive surfaces 20 facing upward. Here, since the jig insertion holes 26 are provided at the same positions in the two wire harness fixing sound absorbing sheets 14a and 14b, respectively, in the thickness direction, the two wire harness fixing sound absorbing sheets 14a , 14b of the jig insertion holes 26 are connected in the overlapping direction (vertical direction in FIGS. 1 to 2 and 4) of the sound absorbing sheets 14a and 14b for fixing the wire harness, respectively. For example, by pressing the other wire harness fixing sound absorbing sheet 14b downward in such a superposed state, the adhesive surface 20 of one wire harness fixing sound absorbing sheet 14a and the wire harness 12 and the other The close contact fixing between the non-adhesive surfaces 18 of the sound absorbing sheet 14b for fixing the wire harness can be made more reliable. Finally, by taking out from the accommodating portion 38 of the positioning jig 32, the wire harness 10 with the sound absorbing sheet of the present embodiment using the sound absorbing sheet 14 for fixing the wire harness is completed.

Next, with respect to the fixing structure of the wire harness 10 with a sound absorbing sheet for fixing the wire harness 12 to, for example, the door trim 46, which is the fixing target, using the wire harness 10 with a sound absorbing sheet thus formed, FIG. 5 is used. I will explain. The fixing structure of the wire harness 10 with a sound absorbing sheet is as shown in FIG. 5 by peeling off the release paper 24 of the other wire harness fixing sound absorbing sheet 14b of the wire harness 10 with a sound absorbing sheet of the present embodiment shown in FIG. This is performed by closely fixing the exposed adhesive surface 20 to the door trim 46 to be fixed. As a result, the wire harness 10 with the sound absorbing sheet is closely fixed to the door trim 46 and is arranged between the door trim 46 and the door panel 48.

According to the wire harness 10 with a sound absorbing sheet of the present embodiment having such a configuration, two wire harness fixing sound absorbing sheets 14 having the same shape are used, and the release paper 24 of one of the wire harness fixing sound absorbing sheets 14a is used. After placing the wire harness 12 on the adhesive surface 20 that has been peeled off and exposed, one wire harness is fixed on the non-adhesive surface 18 side with the other wire harness fixing sound absorbing sheet 14b sandwiched between the wire harness 12. The wire harness 10 with the sound absorbing sheet can be constructed by a simple method of superimposing the sound absorbing sheet 14a on the adhesive surface 20 and fixing the sound absorbing sheet 14a in close contact with the adhesive surface 20. In this way, the wire with the sound absorbing sheet of the present embodiment is simply overlapped with the wire harness 12 sandwiched between the two sound absorbing sheets 14a and 14b for fixing the wire harness having the same shape with the adhesive surfaces 20 facing the same upward. Since the harness 10 can be easily formed and no sheet material other than the conventional sound absorbing sheet is required, the number of parts can be reduced, the parts management can be simplified, and the cost can be reduced. You can do it.

Further, since the jig insertion holes 26 are formed at the same positions in the two sound absorbing sheets 14a and 14b for fixing the wire harness having the same shape, for example, they are provided on a drawing board for wiring the wire harness (not shown). By simply inserting the positioning pin 42 protruding from the positioning jig 32 into the jig insertion holes 26 of both wire harness fixing sound absorbing sheets 14a and 14b, the sound absorbing sheets 14a and 14b for fixing both wire harnesses to the wire harness 12 can be arranged. Positioning and positioning of the sound absorbing sheets 14a and 14b for fixing the wire harness can be performed collectively. Therefore, since the sound absorbing sheets 14a and 14b for fixing the wire harness and the wire harness 12 constituting the wire harness 10 with the sound absorbing sheet can be easily positioned and arranged, the wire harness 10 with the sound absorbing sheet can be easily formed. , The manufacturing efficiency can be improved.

Further, according to the fixing structure of the wire harness 10 with the sound absorbing sheet of the present embodiment, the adhesive surface 20 exposed by peeling off the release paper 24 of the other wire harness fixing sound absorbing sheet 14b is attached to the door trim 46 to be fixed. By closely fixing the wire harness 12, the fixing of the wire harness 12 to the fixing target is completed. As described above, the wire harness 12 can be easily positioned and fixed to the fixing target without the need for an additional fixing member such as a conventional clamp. Further, since the wire harness 10 with a sound absorbing sheet is closely fixed to the door trim 46, for example, the wire harness 10 with a sound absorbing sheet is assembled to the door trim 46 in advance on a separate line, and such a module is used. By attaching the modified door trim 46 to the door panel 48, work efficiency can be improved.

In addition, in the wire harness fixing sound absorbing sheet 14 used for manufacturing the wire harness 10 with the sound absorbing sheet of the present embodiment, the back surface, which is one surface on the sound absorbing material 16 formed in the form of a sheet, has a non-adhesive surface 18. It has a structure in which the surface which is the other surface is the adhesive surface 20. Therefore, the sound absorbing sheets of the present embodiment are simply positioned and fixed by sandwiching the wire harness 12 between the two sound absorbing sheets 14a and 14b for fixing the wire harness with the adhesive surfaces 20 facing upward. The attached wire harness 10 can be easily manufactured, and further, a fixed structure of the attached wire harness with a sound absorbing sheet can be advantageously provided.

Although the plurality of embodiments of the present invention have been described in detail above, the present invention is not limited by these specific descriptions. For example, in the sound absorbing sheet 14 for fixing the wire harness in the wire harness 10 with the sound absorbing sheet of the first embodiment, the release paper 24 has substantially the same shape as the adhesive surface 20 in a plan view (see FIG. 2). Like the sound absorbing sheet 50 for fixing the wire harness of another aspect shown in FIG. 6, the release paper 52 is formed at both ends in the longitudinal direction (in the left and right directions in FIG. 6) from the central portion in the width direction of the adhesive surface 20. It may have a grip portion 54 having a substantially rectangular shape in a plan view that protrudes outward in the longitudinal direction. As a result, the release paper 52 can be easily peeled off from the adhesive surface 20 by pinching the grip portion 54 of the release paper 52. The grip portion 54 may be provided with the release paper 52 at one end in the longitudinal direction, or the release paper 52 may protrude outward from the adhesive surface 20 at the end in the longitudinal direction. It may be formed.

Further, although the sound absorbing sheet 14 for fixing the wire harness in the wire harness 10 with the sound absorbing sheet of the first embodiment is rotationally symmetric, the sound absorbing sheet for fixing the wire harness of another aspect shown in FIG. 7 is shown. Like 56, for example, one jig insertion hole 26 may be removed to make it non-rotational symmetric. At this time, the through hole 28 of the release paper 58 corresponding to the removed jig insertion hole 26, the pair of slits 30, 30 and the positioning pin 42 of the positioning jig 60 are also removed. As a result, the two sound absorbing sheets 56a and 56b for fixing the wire harness having the same shape can be easily positioned and arranged in the normal orientation, and the wire harness 12 can be reliably overlapped with the wire harness 12 sandwiched between them. .. The configuration having non-rotational symmetry is not limited to the mode shown in FIG. 7, and any configuration having non-rotational symmetry can be adopted.

Further, in the sound absorbing sheet 14 for fixing the wire harness in the wire harness 10 with the sound absorbing sheet of the first embodiment, the adhesive portion 22 formed by applying the adhesive over the entire surface of the adhesive surface 20 is formed. An adhesive is applied to the adhesive surface 20 of the sound absorbing sheet 64 for fixing the wire harness, as in the sound absorbing sheet 64 for fixing the wire harness in the wire harness 62 with the sound absorbing sheet of the second embodiment shown in FIGS. 8 to 10. It may have a base area 68 that is not provided and the release paper 66 is not attached (see FIG. 8). Then, as shown in FIGS. 9 to 10, the two wire harness fixing sound absorbing sheets 64a and 64b are overlapped with each other in a state where the wire harness 12 is sandwiched between them, and the tag pin which is a fixture is used. By fixing with 70, the wire harness 62 with a sound absorbing sheet of the present embodiment is configured. As shown in FIG. 10, the tag pin 70 has a shaft portion 72 that penetrates the two wire harness fixing sound absorbing sheets 64a and 64b in the thickness direction, and both ends of the shaft portion 72 in the radial direction. It is configured to include a locking portion 74 that extends to prevent the shaft portion 72 from coming off. As a result, for example, by providing the base area 68 in the peripheral region of the sound absorbing sheet 64 for fixing the wire harness where the adhesive is easily peeled off, the two wire harnesses are fixed by using the tag pin 70 which is a fixing tool instead of the adhesive. The sound absorbing sheets 64a and 64b can be fixed to each other.

Further, although the wire harnesses 10 and 62 with sound absorbing sheets of the first and second embodiments are configured to have two sound absorbing sheets 14 and 64 for fixing the wire harness, respectively, the wire harness 10 with sound absorbing sheets , 62, an additional 1 for the lower surface of one wire harness fixing sound absorbing sheet 14a, 64a and the upper surface of the other wire harness fixing sound absorbing sheet 14b, 64b, depending on the sound absorbing performance required for One or a plurality of sound absorbing sheets 14 and 64 for fixing the wire harness may be adhered to ensure the sound absorbing performance.

In addition, in the fixing structure of the wire harness 10 with the sound absorbing sheet of the first embodiment, the wire harness 10 with the sound absorbing sheet is closely fixed to the door trim 46 to be fixed, but is closely attached to the door panel 48. It may be fixed, or it may be closely fixed to the roof, floor, or the like to which the wire harness 12 is arranged.

10, 62: Wire harness with sound absorbing sheet, 12: Wire harness, 14, 50, 56, 64: Sound absorbing sheet for fixing wire harness, 14a, 56a, 64a: Sound absorbing sheet for fixing one wire harness, 14b, 56b, 64b : The other sound absorbing sheet for fixing the wire harness, 18: non-adhesive surface, 20: adhesive surface, 24, 52, 58, 66: release paper, 26: jig insertion hole, 28: through hole, 30: slit, 46: Door trim (fixing target), 54: grip part, 68: base area, 70: tag pin (fixing tool)

Claims (6)

With a wire harness
It has at least two sound absorbing sheets for fixing a wire harness having the same shape, which are formed in a sheet shape, one surface of which is a non-adhesive surface and the other surface of which is an adhesive surface covered with a release paper.
On the other hand, the wire harness is placed on the adhesive surface where the release paper of the sound absorbing sheet for fixing the wire harness is peeled off and exposed.
The other sound absorbing sheet for fixing the wire harness is overlapped with the adhesive surface of the one sound absorbing sheet for fixing the wire harness on the non-adhesive surface side with the wire harness sandwiched between them, and is closely fixed. Has been
The adhesive surface of the wire harness fixing sound absorbing sheet has a base region to which an adhesive is not applied, and the base regions of the two wire harness fixing sound absorbing sheets are overlapped with each other to form a fixture. A wire harness with a sound absorbing sheet, which is characterized by being fixed using . Each of the wire harness fixing sound absorbing sheets is provided with a jig insertion hole penetrating in the thickness direction at the same position, and the jig insertion hole of the one wire harness fixing sound absorbing sheet and the jig insertion hole. The wire harness with a sound absorbing sheet according to claim 1, wherein the jig insertion hole of the other sound absorbing sheet for fixing the wire harness is connected in the overlapping direction of the sound absorbing sheet for fixing the wire harness. With a wire harness
It has at least two sound absorbing sheets for fixing a wire harness having the same shape, which are formed in a sheet shape and one surface is a non-adhesive surface and the other surface is an adhesive surface covered with a release paper.
On the other hand, the wire harness is placed on the adhesive surface where the release paper of the sound absorbing sheet for fixing the wire harness is peeled off and exposed.
The other sound absorbing sheet for fixing the wire harness is overlapped with the adhesive surface of the one sound absorbing sheet for fixing the wire harness on the non-adhesive surface side with the wire harness sandwiched between them, and is closely fixed. Has been
Each of the wire harness fixing sound absorbing sheets is provided with a jig insertion hole penetrating in the thickness direction at the same position, and the jig insertion hole of the one wire harness fixing sound absorbing sheet and the jig insertion hole. The jig insertion hole of the other sound absorbing sheet for fixing the wire harness is connected in the overlapping direction of the sound absorbing sheet for fixing the wire harness.
The release paper of the sound absorbing sheet for fixing the wire harness has a through hole corresponding to the jig insertion hole and a pair of slits parallel to the release direction of the release paper and extending on both sides in the radial direction of the through hole. It is provided by opening in the through hole.
A wire harness with a sound absorbing sheet. The wire harness with a sound absorbing sheet according to any one of claims 1 to 3 , wherein the release paper has a grip portion that protrudes outward from the adhesive surface. The wire harness with a sound absorbing sheet according to any one of claims 1 to 4 is used.
A fixing structure of a wire harness with a sound absorbing sheet, wherein the adhesive surface exposed by peeling off the release paper of the other sound absorbing sheet for fixing the wire harness is closely fixed to a fixing target. A sound absorbing sheet for fixing a wire harness used for manufacturing a wire harness with a sound absorbing sheet according to any one of claims 1 to 4 .
It is formed in a sheet shape, one surface is a non-adhesive surface, and the other surface is an adhesive surface covered with release paper.
A wire harness fixing sound absorbing sheet, characterized in that at least two wire harness fixing sound absorbing sheets having the same shape are used by being overlapped with the adhesive surfaces oriented in the same direction.

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