Protector for wire harness and method for manufacturing wire harness with protector

Abstract

The present invention provides a wire harness protector capable of achieving required protection performance while suppressing an increase in the number of types of components. A wire harness protector (1) is provided with: a protector (2) formed by overlapping a plurality of sheets (10); and a fixing part (3) that fixes both end parts (2a) of the protector to each other in a state in which the protector is wound around the wire harness (WH), the plurality of sheets have the same material and same shape, the plurality of sheets include a first sheet and a second sheet, the second sheet is disposed at a position offset from the first sheet in the axial direction (X) of the wire harness, and the first sheet and the second sheet are arranged in a staggered manner in the axial direction (X) of the wire harness. The protector is wound around the wire harness such that the inner side surfaces of both ends of the protector face each other to form a joining surface extending in the axial direction (X), and the fixing part (3) fixes both ends of the protector to each other in the facing direction in which the inner side surfaces of both ends (2a) of the protector (2) face each other.

Description

Technical Field

[0001] The present invention relates to a protective member for a wire harness and a method for manufacturing a wire harness with the protective member. Background Art

[0002] In the past, there was a structure for protecting a wire harness. Patent document 1 discloses a wire harness protection structure, which includes: a protective member that covers the outer periphery of a predetermined portion of the wire harness; and a fixing tape, a starting end of which is wound around and fixed to the wire harness, and a terminal end of which is wound around and fixed to the outer periphery of the protective member through the protective member and fixed to the wire harness on the side opposite to the starting end.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: International Publication No. 2012 / 008364 Summary of the invention

[0006] Technical problem that the invention aims to solve

[0007] In a wire harness protector, when a dedicated protector is manufactured according to the required protection performance, the number of types of components increases. It is desirable to manufacture a protector corresponding to the required protection performance while suppressing the increase in the number of types of components.

[0008] An object of the present invention is to provide a wire harness protector capable of suppressing an increase in the number of types of components and achieving required protection performance.

[0009] It is desirable to improve the efficiency of the process of attaching a protector to a wire harness. Another object of the present invention is to provide a method for manufacturing a wire harness with a protector, which can improve the efficiency of the process of attaching a protector to a wire harness.

[0010] Technical solutions to the problem

[0011] The protective part for a wire harness of the present invention is characterized in that it comprises: a protective body, which is composed of a plurality of overlapping sheets; and a fixing portion, which fixes the two ends of the protective body to each other when the protective body is wound on the wire harness, the plurality of sheets have the same material and the same shape, the plurality of sheets include a first sheet and a second sheet, the second sheet is arranged at a position offset relative to the first sheet in the axial direction of the wire harness, and partially overlaps with the first sheet, the protective body has an inner side surface opposite to the wire harness when wound on the wire harness, the protective body is wound on the wire harness in a manner that the inner side surfaces of the two end portions of the protective body are opposite to each other and form a joining surface extending along the axial direction, and the fixing portion fixes the two ends of the protective body to each other along the opposing direction of the inner side surfaces of the two end portions of the protective body.

[0012] The manufacturing method of the wiring harness with a protective member involved in the present invention is characterized in that it includes: a process of placing a protective body composed of a plurality of overlapping sheets on a groove portion of a jig; a process of accommodating the wiring harness in the protective body placed on the groove portion; and a process of fixing the two ends of the protective body to each other using a fixing portion to install the protective body on the wiring harness.

[0013] Effects of the Invention

[0014] In the wire harness protection member of the present invention, the plurality of sheets include a first sheet and a second sheet, the second sheet is arranged at a position offset relative to the first sheet in the axial direction of the wire harness and partially overlaps with the first sheet, and the fixing portion fixes the two ends of the protection body to each other along the opposing direction of the inner side surfaces of the two end portions of the protection body. According to the wire harness protection member of the present invention, the increase in the types of components can be suppressed and the required protection performance can be achieved.

[0015] According to the method for manufacturing a wire harness with a protector according to the present invention, there is an effect that the process of attaching the protector to the wire harness can be made more efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the wire harness with a protector according to the embodiment.

[0017] Figure 2 It is a perspective view of a wire harness with a protector according to the embodiment.

[0018] Figure 3 It is a cross-sectional view of a wire harness with a protector according to the embodiment.

[0019] Figure 4 It is a perspective view of a sheet material according to the embodiment.

[0020] Figure 5It is a perspective view of the protector according to the embodiment.

[0021] Figure 6 It is a side view of the jig involved in embodiment.

[0022] Figure 7 This is a perspective view showing a protection body placed on a groove portion of a jig.

[0023] Figure 8 This is a side view showing a protector placed on a groove portion of a jig.

[0024] Fig. 9 It is a side view showing the wire harness accommodated in the protector.

[0025] Fig.10 It is a side view showing the wire harness accommodated in the protector.

[0026] Fig.11 It is a diagram for explaining a welding machine for forming a fixing portion.

[0027] Fig.12 It is a perspective view of a sheet material according to the embodiment.

[0028] Fig.13 It is a cross-sectional view of a sheet material according to the embodiment.

[0029] Fig.14 It is a plan view of a sheet material according to an embodiment.

[0030] Fig.15 It is a plan view of a sheet material according to an embodiment.

[0031] Fig.16 This is a diagram showing an example of how sheets are overlapped.

[0032] Fig.17 It is a perspective view of a sheet material according to the embodiment.

[0033] Fig.18 It is a perspective view of a wire harness with a protector according to the embodiment.

[0034] Fig.19 It is a front view of the wire harness with a protector according to the embodiment.

[0035] Fig. 20 It is a perspective view of a wire harness with a protector according to the embodiment.

[0036] Fig.21 It is a perspective view of a wire harness protection member according to the embodiment.

[0037] Fig. 22 It is a perspective view of a wire harness protection member according to the embodiment.

[0038] Fig.23 It is a side view of the wire harness with a protector according to the embodiment.

[0039] Fig.24 This is a diagram showing an example of how sheets are overlapped.

[0040] Fig.25 It is a front view of the wire harness with a protector according to the embodiment.

[0041] Fig.26 It is a perspective view of the protector according to the embodiment.

[0042] Fig. 27 It is a perspective view of the protector according to the embodiment.

[0043] Fig.28 This is a cross-sectional view of the protective body positioned by the positioning pins.

[0044] Description of Reference Numerals

[0045] 1: Protective parts for wiring harness

[0046] 2: Protector, 2a: End, 2b: Inner side, 2c: End face, 2d: Through hole

[0047] 2e: Opening

[0048] 3: Fixed part

[0049] 10: sheet, 10A: first sheet, 10B: second sheet

[0050] 11: first side, 12: second side

[0051] 13, 14: Bending part

[0052] 15: Low rigidity part, 16: High rigidity part, 17: Welding part, 18: Area

[0053] 30: Binding part, 31: Head, 32: Belt

[0054] 40: Clip, 41: Head, 42: Pin, 43: Leg

[0055] 50: Clip, 51: Holding body, 52: Engagement structure

[0056] 100: jig, 110: groove, 113: positioning pin

[0057] 200: Welding machine

[0058] D1: first direction, D2: second direction

[0059] Ly: stacking direction, Op: facing direction, X: axial direction, Z: thickness direction

[0060] W: Wire, WH: Wire harness, WH1: Wire harness with protector DETAILED DESCRIPTION

[0061] Hereinafter, the protective member for wire harness and the manufacturing method of the wire harness with protective member according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. In addition, the present invention is not limited to the embodiment. In addition, the constituent elements in the following embodiment include elements that can be easily thought of by a person skilled in the art or substantially the same elements.

[0062] [Implementation Method]

[0063] Reference Figures 1 to 28 , an embodiment will be described. This embodiment relates to a protective member for a wire harness and a method for manufacturing a wire harness with the protective member. Figure 1 is a front view of a wire harness with a protective member according to an embodiment, Figure 2 is a perspective view of a wire harness with a protector according to an embodiment. Figure 3 is a cross-sectional view of a wire harness with a protector according to an embodiment. Figure 4 is a perspective view of a sheet material according to an embodiment of the present invention, Figure 5 is a perspective view of a protective body according to an embodiment of the present invention, Figure 6 is a side view of a jig according to an embodiment of the present invention, Figure 7 is a perspective view showing a protective body placed in a groove of a jig. Figure 8 is a side view showing a protective body placed in a groove of a jig. Fig. 9 is a side view showing a wiring harness housed in a protective body, Fig.10 It is a side view showing the wire harness accommodated in the protector.

[0064] Fig.11 is a diagram for explaining a welding machine for forming a fixing portion, Fig.12 is a perspective view of a sheet material according to an embodiment of the present invention, Fig.13 is a cross-sectional view of a sheet material according to an embodiment, Fig.14 and Fig.15 is a plan view of a sheet material according to an embodiment of the present invention, Fig.16 is a diagram showing an example of how sheets are overlapped. Fig.17 is a perspective view of a sheet material according to an embodiment of the present invention, Fig.18 is a perspective view of a wire harness with a protector according to an embodiment. Fig.19 is a front view of a wire harness with a protective member according to an embodiment, Fig. 20 It is a perspective view of a wire harness with a protector according to the embodiment.

[0065] Fig.21 and Fig. 22 is a perspective view of a wire harness protection member according to an embodiment. Fig.23 is a side view of a wire harness with a protector according to an embodiment, Fig.24 is a diagram showing an example of how sheets are overlapped. Fig.25 is a front view of a wire harness with a protective member according to an embodiment, Fig.26 and Fig. 27 is a perspective view of a protective body according to an embodiment of the present invention, Fig.28 This is a cross-sectional view of the protective body positioned by the positioning pins. Figure 3 Show Figure 1 III-III section. Fig.13 Shown in Fig.12 Section XIII-XIII.

[0066] like Figure 1 and Figure 2 As shown, the wire harness WH1 with a protective member of the present embodiment includes a wire harness WH and a wire harness protective member 1. The wire harness WH includes a plurality of wires W. The wires W are, for example, covered wires. The wire harness protective member 1 is a component installed on the wire harness WH to protect the wire harness WH. The wire harness protective member 1 includes a protective body 2 and a fixing portion 3. The protective body 2 is wound around the outside of the wire harness WH to protect the wire harness WH. The fixing portion 3 fixes two end portions 2a, 2a of the protective body 2 to each other.

[0067] like Figure 3 As shown, the protective body 2 is composed of a plurality of overlapping sheets 10. One sheet 10 overlaps at least a portion of another sheet 10. The fixing portion 3 fixes the two ends 2a of the sheet 10 to each other along the opposing direction Op in which the ends 2a of the sheet 10 are opposite to each other. The fixing portion 3 is formed by welding, for example. However, the fixing portion 3 may also be a component mounted on the protective body 2, for example, a clip or a binding component.

[0068] In the wire harness protective part 1 of the present embodiment, a plurality of sheets 10 are used, and the plurality of sheets 10 are staggered in the axial direction of the wire harness WH. In such a structure, by combining the same sheets 10, a wire harness protective part 1 corresponding to the required protection performance can be achieved. In addition, the protection performance of the wire harness protective part 1 includes rigidity, flexibility, impact resistance, size, etc. In the wire harness protective part 1 of the present embodiment, since it is not necessary to keep a plurality of protective parts with different protection performances separately as inventory, the inventory management can be simplified.

[0069] like Figure 4As shown, the shape of the sheet 10 of this embodiment is rectangular. The sheet 10 is formed of a flexible insulating synthetic resin. The material of the sheet 10 is, for example, soft polyvinyl chloride (PVC). The illustrated sheet 10 has a flat plate shape. The thickness t [mm] of the sheet 10 is determined in such a way that the sheet 10 has appropriate flexibility and appropriate strength.

[0070] like Figure 5 As shown, the protective body 2 is composed of a plurality of sheets 10 stacked together. The plurality of sheets 10 constituting the protective body 2 have the same material and the same shape. That is, the material and shape of one sheet 10 constituting the protective body 2 are the same as the material and shape of the other sheets 10 constituting the protective body 2. All the sheets 10 have the same size. For example, when the shape of the sheet 10 is rectangular, the lengths and thicknesses t of the corresponding sides 11 and 12 of the plurality of sheets 10 are the same.

[0071] like Figure 5 As shown, a plurality of sheets 10 are overlapped in a manner that one sheet 10 covers at least a portion of another sheet 10. The rectangular sheet 10 shown in the example has a pair of first sides 11 and a pair of second sides 12. In the following description, the direction along the first side 11 is referred to as the first direction D1, and the direction along the second side 12 is referred to as the second direction D2. The first direction D1 and the second direction D2 are orthogonal to each other.

[0072] constitute Figure 5 The plurality of sheets 10 of the protective body 2 include a first sheet 10A and a second sheet 10B. Figure 5 In the protective body 2 shown, the second sheet 10B is overlapped with respect to the first sheet 10A in a staggered manner in the first direction D1. That is, the second side 12 of the second sheet 10B is offset in the first direction D1 relative to the second side 12 of the first sheet 10A. Thus, the length L10 of the protective body 2 in the first direction D1 is longer than the length L1 of the first side 11 of one sheet 10. That is, by overlapping a plurality of sheets 10 in a staggered manner, a protective body 2 having a desired length L10 is achieved. The protective body 2 may also have more than three sheets 10. The number of sheets 10 constituting the protective body 2 is determined based on the required protection performance, etc.

[0073] The installation work of the protection body 2 with respect to the wire harness WH is performed using a jig, for example. Figure 6 An example of a jig used for attaching the protection body 2 is shown in FIG. Figure 6 The jig 100 is, for example, a jig plate. The jig 100 has a groove 110. The groove 110 may extend in a straight line or may have a curved portion. The shape of the groove 110 in a plan view may also be determined according to the shape of the wiring path of the wire harness WH.

[0074] The groove 110 is composed of a bottom wall 111 and a pair of side walls 112. The groove 110 has a width and depth capable of accommodating the wire harness WH. The cross-sectional shape of the internal space of the exemplary groove 110 is substantially rectangular. The groove 110 has an opening 110a into which the protector 2 and the wire harness WH are inserted.

[0075] A method for manufacturing a wire harness with a protector will be described using the jig 100. The method for manufacturing a wire harness with a protector includes a step of placing the protector 2, a step of housing the wire harness WH, and a step of fixing.

[0076] In the step of placing the protection body 2, the protection body 2 is placed in the groove 110 of the jig 100. Figure 7 As shown, the protector 2 is inserted into the groove 110 from the opening 110a in a state where a plurality of sheets 10 are overlapped. At this time, the protector 2 is placed in the groove 110 in such a manner that the first direction D1 coincides with the extending direction of the groove 110. Therefore, the protector 2 is placed in the groove 110 in a state where the second sheet 10B is offset from the first sheet 10A in the extending direction of the groove 110.

[0077] like Figure 8 As shown, the protective body 2 is placed in the groove 110 while the central portion of the protective body 2 is bent into a substantially U-shape. The first side 11 of the protective body 2 protrudes to the outside of the groove 110. That is, the protective body 2 is placed in the groove 110 in a manner that the two end portions 2a protrude from the groove 110. The placed protective body 2 has an opening 2e for receiving the wire harness WH. The jig 100 may also have a holding structure that holds the two end portions 2a to form the opening 2e.

[0078] In the process of storing the wire harness WH, the wire harness WH is stored in the protection body 2 placed in the groove 110. Fig. 9 As shown, the wire harness WH is inserted from the opening 2e into the protector 2. The protector 2 accommodates the wire harness WH in a portion bent into a substantially U-shape.

[0079] exist Fig.10 , a protective body 2 containing a wire harness WH is shown. The wire harness WH is placed on the protective body 2 in such a manner that the wire harness WH passes through a space portion surrounded by the protective body 2. The protective body 2 is wound around the wire harness WH in such a manner that it covers the wire harness WH. The protective body 2 wound around the wire harness WH has an inner side surface 2b that is opposite to the wire harness WH. The protective body 2 is held by the groove portion 110 in such a manner that the inner side surfaces 2b of the two end portions 2a of the protective body 2 are opposite to each other. The jig 100 may also have a supporting structure that supports the end portions 2a in such a manner that the inner side surfaces 2b are opposite to each other. The protective body 2 is wound around the wire harness WH in such a manner that the openings of the plurality of sheets 10 face the same direction.

[0080] The fixing process is a process of fixing the two end portions 2a of the protection body 2 to each other by the fixing portion 3. The fixing portion 3 is formed by, for example, welding the two end portions 2a. Fig.11 The welding is performed by a welding machine 200. The welding method of the welding machine 200 may be ultrasonic welding, heat welding, laser welding, or other methods. The welding machine 200, for example, sandwiches the two end portions 2a, melts the sheet 10 by heat generated by ultrasound, etc., and forms the fixing portion 3.

[0081] like Figure 3 As shown, a part of the sheet 10 is melted to form the fixing portion 3. The protective body 2 is wound around the wire harness WH in such a manner that the inner side surfaces 2b of the two end portions 2a face each other to form a bonding surface extending in the axial direction X. That is, the inner side surfaces 2b of the plurality of sheets 10 of the protective body 2 form a bonding surface extending in the axial direction X. In a state fixed by the fixing portion 3, the inner side surfaces 2b of the two end portions 2a face each other in the opposing direction Op.

[0082] The fixing portion 3 extends from one end 2a to the other end 2a along the opposing direction Op. In other words, the fixing portion 3 penetrates the two end portions 2a along the opposing direction Op. By forming the fixing portion 3, the opening between the two end portions 2a is closed. Figure 3 As shown, a plurality of sheets 10 are fixed at the same position of the opening of the protection body 2 .

[0083] In addition, since the protective body 2 is wound around the wire harness WH, there is a case where the position of the end face 2c of the sheet 10 is misaligned. This misalignment is caused, for example, by the difference in the inner and outer peripheries of the portion wound around the wire harness WH. The end face 2c of the sheet 10 located relatively inside protrudes relative to the end face 2c of the sheet 10 located relatively outside.

[0084] like Figure 2 As shown, the wire harness protector 1 may include a plurality of fixing portions 3 . Figure 2 The multiple fixing portions 3 shown are arranged at intervals along the axial direction X of the wire harness WH. The multiple fixing portions 3 can be arranged at equal intervals. In the portion between the two fixing portions 3, the two end portions 2a can be slid and separated. In addition, in the case where the multiple sheets 10 overlap in the section between the two fixing portions 3, the multiple sheets 10 can be slid and separated. Therefore, the wire harness protector 1 having the multiple fixing portions 3 can be flexibly bent. That is, the wire harness protector 1 having the multiple fixing portions 3 has high followability with respect to the wire harness WH that is laid while being bent.

[0085] The wire harness protector 1 is attached to the wire harness WH by fixing both end portions 2a to each other by the fixing portions 3. Thus, the wire harness WH1 with the protector is manufactured.

[0086] like Figure 1 and Figure 2 As shown in FIG. 1 , the wire harness protection member 1 of the present embodiment includes a relatively low-rigidity portion 15 and a relatively high-rigidity portion 16. The high-rigidity portion 16 is composed of a relatively large number of sheets 10 compared to the low-rigidity portion 15. For example, Figure 1 and Figure 2 In the wire harness protection member 1 shown, the high-rigidity portion 16 is formed by overlapping the first sheet 10A and the second sheet 10B. In addition, in the high-rigidity portion 16, the plurality of sheets 10 are fixed to each other by the fixing portion 3.

[0087] The low-rigidity portion 15 is composed of a relatively small number of sheets 10. For example, Figure 1 and Figure 2 In the wire harness protection member 1, the low-rigidity portion 15 is composed of one first sheet 10A or one second sheet 10B. The low-rigidity portion 15 is composed of a smaller number of sheets 10, and thus has lower rigidity than the high-rigidity portion 16. That is, the low-rigidity portion 15 has higher bendability than the high-rigidity portion 16.

[0088] The high-rigidity portion 16 is provided, for example, in correspondence with a portion of the wire harness WH that is laid out in a straight line. The low-rigidity portion 15 is provided, for example, in correspondence with a portion of the wire harness WH that is laid out in a curved line. The high-rigidity portion 16 may also be provided in a portion that requires high protection performance.

[0089] In addition, the sheet 10 may also have concave portions and convex portions. Fig.12 and Fig.13 2 shows a sheet 10 having a curved portion 13 curved in a spherical shape. Fig.12 The sheet 10 has a plurality of curved portions 13. Fig.13 As shown, the curved portion 13 is curved toward one side in the thickness direction Z of the sheet 10. One surface of the curved portion 13 is a convex surface, and the other surface of the curved portion 13 is a concave surface.

[0090] The rigidity and bendability of the sheet 10 can be adjusted by the arrangement of the curved portion 13. Fig.14 In the sheet material 10 shown, the plurality of curved portions 13 are arranged in a grid shape. That is, the plurality of curved portions 13 are arranged along the first direction D1 and the second direction D2. When the plurality of curved portions 13 are arranged in a grid shape, a region 18 having high bendability is formed between adjacent curved portions 13. Such a sheet material 10 has high bendability when wound around the wire harness WH.

[0091] exist Fig.15In the sheet material 10 shown, a plurality of curved portions 13 are arranged in a staggered manner. The plurality of curved portions 13 include a first row R1 and a second row R2. The first row R1 and the second row R2 include a plurality of curved portions 13 arranged in a first direction D1. The first row R1 and the second row R2 are arranged staggered in the first direction D1. For example, in the first direction D1, the curved portion 13 of the second row R2 is arranged between two curved portions 13 of the first row R1.

[0092] Fig.15 The sheet 10 is wound around the wire harness WH, for example, with the portion along the first side 11 as the end 2a. The sheet 10 in which the plurality of bending portions 13 are arranged in an alternating manner has high rigidity when wound around the wire harness WH. Such a sheet 10 can improve the rigidity of the wire harness protector 1 against bending. In addition, the sheet 10 may also have other columns in addition to the first column R1 and the second column R2. In other words, the sheet 10 may also have bending portions 13 arranged in three or more columns.

[0093] The sheets 10 having the bent portions 13 may also be overlapped in such a manner that the bent portions 13 fit into each other. Fig.16 As shown, a plurality of sheets 10 may be overlapped in such a manner that the curved portion 13 of one sheet 10 enters the curved portion 13 of another sheet 10. Alternatively, a plurality of sheets 10 may be overlapped in such a manner that the positions of the curved portions 13 are staggered. In this case, a gap is formed between the two sheets 10, and the rigidity and impact resistance of the wire harness protector 1 are improved.

[0094] The protector 2 can be wound around the wire harness WH with the convex surface of the curved portion 13 facing outward. In this case, the contact between the peripheral components and the wire harness protector 1 becomes point contact, and the wear resistance of the wire harness protector 1 is improved. In addition, the contact area with the peripheral components is small, thereby suppressing the generation of abnormal noise.

[0095] The shape of the curved portion provided in the sheet 10 is not limited to a spherical shape. Fig.17 2 shows a sheet 10 having a groove-shaped curved portion 14. The sheet 10 has a plurality of curved portions 14. The curved portion 14 extends linearly and has an arc-shaped cross-sectional shape. Fig.17 The bent portions 14 extend along the second direction D2. A predetermined interval is provided between two adjacent bent portions 14. The plurality of bent portions 14 are arranged at equal intervals, for example, along the first direction D1.

[0096] The sheet 10 is wound around the wire harness WH, for example, with the portion along the second side 12 as the end portion 2a. In this case, the sheet 10 can improve the rigidity of the wire harness protector 1 against bending. Alternatively, the sheet 10 can be wound around the wire harness WH with the portion along the first side 11 as the end portion 2a. In this case, the sheet 10 can bend flexibly following the wire harness WH.

[0097] The sheets 10 having the curved portion 14 are overlapped, for example, in such a manner that the curved portions 14 fit into each other. That is, in the protective body 2, a plurality of sheets 10 may be overlapped in such a manner that the curved portion 14 of one sheet 10 enters the curved portion 14 of another sheet 10. Alternatively, a plurality of sheets 10 may be overlapped in such a manner that the positions of the curved portions 14 are staggered. In addition, a plurality of sheets 10 may be overlapped in such a manner that the curved portions 14 protrude in opposite directions from each other. For example, a plurality of sheets 10 may be overlapped in such a manner that the convex surfaces of the curved portions 14 contact each other, or in such a manner that the concave surfaces of the curved portions 14 face each other.

[0098] The wire harness protector 1 may include the fixing portion 3 provided in a linear shape. Fig.18 A wire harness protector 1 having a linear fixing portion 3 is shown. The fixing portion 3 extends linearly along the axial direction X. The fixing portion 3 is provided, for example, in a range from one end to the other end of the end portion 2a in the axial direction X. The linear fixing portion 3 can increase the rigidity of the end portion 2a and improve the straightness of the wire harness WH.

[0099] Furthermore, the configuration of the fixing portion 3 provided at the high rigidity portion 16 may be different from the configuration of the fixing portion 3 provided at the low rigidity portion 15. The configuration of the fixing portion 3 includes at least one of the shape of the fixing portion 3, the arrangement of the fixing portion 3, or the number of the fixing portions 3 per unit length. Fig.19 As shown, a linear fixing portion 3 may be provided in the high-rigidity portion 16 , or a plurality of fixing portions 3 may be provided in the low-rigidity portion 15 at intervals.

[0100] In the high-rigidity portion 16, the two end portions 2a are fixed to each other by a fixing portion 3 extending in a straight line. The shape of the fixing portion 3 provided in the high-rigidity portion 16 may be an oval shape, a rectangle, or other shapes. In the low-rigidity portion 15, the two end portions 2a are fixed to each other by a plurality of fixing portions 3 arranged at intervals. The shape of the fixing portion 3 provided in the low-rigidity portion 15 may be a dot shape, a circle, or other shapes.

[0101] As the fixing part 3, it is also possible to use Fig. 20 The strapping member 30 shown. The strapping member 30 is, for example, a member called a strapping tape, and has a head 31 and a belt portion 32. The belt portion 32 is inserted into a through hole 2d provided at the end 2a of the protective body 2, and engages with the head 31. The strapping member 30 fixes the two ends 2a to each other along the opposing direction Op. The through hole 2d is formed in each sheet 10 constituting the protective body 2. A plurality of sheets 10 are overlapped in a manner that the through holes 2d are opposed to each other. The protective body 2 of the example has a plurality of through holes 2d. The plurality of through holes 2d are arranged at intervals along the axial direction X.

[0102] As the fixing part 3, it is also possible to use Fig.21 and Fig. 22 The clip 40 shown. The clip 40 is a fastening component known as a two-piece clip, a push rivet. Fig.21 and Fig. 22 The clip 40 shown has a head 41, a pin 42, and a plurality of legs 43. The pin 42 passes through the head 41. The pin 42 and the legs 43 are inserted into the through hole of the protective body 2. The clip 40 is configured such that the legs 43 are expanded by pressing the pin 42. The clip 40 sandwiches the sheet 10 between the expanded legs 43 and the head 41, and fastens the two end portions 2a of the protective body 2. The clip 40 fixes the two end portions 2a to each other along the opposing direction Op.

[0103] In addition, in the formation Fig.18 In the case of such a linear fixing portion 3, for example, a linear clip such as a clip called a cover clip or a sealing clip may be used. Fig.23 2 shows a side view of the protection body 2 fastened by a linear clip 50. The clip 50 has two holding bodies 51 and an engaging structure 52. The clip 50 is molded of, for example, an insulating synthetic resin.

[0104] The retaining body 51 clamps and retains the two end portions 2a of the protective body 2. The two retaining bodies 51 are formed in a plate-like or rod-like shape, sandwiching the two end portions 2a in the middle and facing each other in the opposing direction Op. The two retaining bodies 51 are clamped by a snap-fit ​​structure 52. The snap-fit ​​structure 52 is composed, for example, of a snap-fit ​​arm 52a possessed by one retaining body 51 and a stopper 52b possessed by the other retaining body 51. In this case, the stopper 52b stops the snap-fit ​​arm 52a in the opposing direction Op. The snap-fit ​​structure 52 is arranged at both ends of the axial direction X relative to the retaining body 51. The clip 50 can fix the two end portions 2a to each other along the opposing direction Op. In addition, in addition to the two ends of the retaining body 51, a further snap-fit ​​structure can also be provided in the middle portion of the retaining body 51.

[0105] A plurality of sheets 10 having a curved portion 14 may be overlapped so that the curved portions 14 extend in different directions. Fig.24 2 shows the protectors 2 stacked in a manner such that the extending directions of the bent portions 14 are different. Fig.24 The protective body 2 has one first sheet material 10A and two second sheets 10B.

[0106] The two second sheets 10B are overlapped with each other with respect to the first sheet 10A in the axial direction X. One second sheet 10B is offset to a first side X1 in the axial direction X relative to the first sheet 10A. The other second sheet 10B is offset to a second side X2 in the axial direction X relative to the first sheet 10A.

[0107] The curved portion 14 of the first sheet 10A extends in the axial direction X. The curved portion 14 of the second sheet 10B extends in a direction orthogonal to the curved portion 14 of the first sheet 10A. The first sheet 10A and the second sheet 10B partially overlap. The protective body 2 composed of three sheets 10 is attached to the wire harness WH using, for example, a jig 100 and a welding machine 200.

[0108] exist Fig.25 The wiring harness WH and Fig.24 A wire harness WH1 with a protective member is formed by a protective body 2. Fig.25 As shown, the wire harness protection member 1 has a low-rigidity portion 15 and a high-rigidity portion 16. The high-rigidity portion 16 is formed by overlapping the first sheet 10A and the second sheet 10B. The low-rigidity portion 15 is formed by the second sheet 10B.

[0109] In the first sheet 10A, the curved portion 14 extends in the axial direction X. On the other hand, in the second sheet 10B, the curved portion 14 extends in the circumferential direction so as to surround the wire harness WH. Therefore, in terms of rigidity against bending, the first sheet 10A is more rigid than the second sheet 10B. That is, the high-rigidity portion 16 has high rigidity relative to the low-rigidity portion 15 at least in terms of the first sheet 10A.

[0110] In addition, the first sheet 10A and the second sheet 10B overlap in the high-rigidity portion 16. That is, the high-rigidity portion 16 has high rigidity relative to the low-rigidity portion 15 in that a relatively large number of sheets 10 overlap. Therefore, in the high-rigidity portion 16, the rigidity is increased by both the extending direction of the curved portion 14 and the number of sheets 10.

[0111] When the protective body 2 is mounted on the wire harness WH, a means for suppressing the positional deviation of the plurality of sheets 10 may be used. Fig.26 As shown, a welded portion 17 where a plurality of sheets 10 are welded together may be formed. Fig.26 The protective body 2 has a plurality of welded portions 17. The welded portions 17 are formed so as to penetrate the protective body 2 along the stacking direction Ly in which the sheets 10 are stacked. The welded portions 17 are arranged in a region where a plurality of sheets 10 are stacked.

[0112] The plurality of welded portions 17 are arranged along the axial direction X of the wire harness WH when the wire harness WH is wound. Fig.26 In the protective body 2, a plurality of welded portions 17 are arranged in the first direction D1. In this case, the protective body 2 is wound around the wire harness WH so that the wire harness WH extends in the first direction D1. The welded portion 17 is disposed, for example, at the center of the protective body 2 in the second direction D2.

[0113] like Fig. 27 As shown, the welded portion 17 may also be formed in a straight line. Fig. 27 The welded portion 17 extends along the axial direction X of the wire harness WH when the wire harness WH is wound around the wire harness WH. The linear welded portion 17 can improve the straightness of the wire harness protector 1 .

[0114] The means for suppressing the positional deviation of the sheet 10 may be positioning pins provided on the jig 100 . Fig.28 A jig 100 having a positioning pin 113 is shown. The positioning pin 113 is, for example, disposed on the bottom wall 111. The positioning pin 113 of the example protrudes from the bottom wall 111 toward the opening of the groove 110. The protective body 2 has a through hole 2f for inserting the positioning pin 113. The through hole 2f is disposed at a portion where a plurality of sheets 10 overlap. The through hole 2f is provided in each sheet 10. That is, the plurality of sheets 10 overlap in such a manner that the through holes 2f are opposed to each other. The positioning pin 113 is inserted into the through hole 2f of each sheet 10 to suppress the positional deviation of the plurality of sheets 10.

[0115] According to the manufacturing method of the wire harness WH1 with a protector according to the present embodiment, complicated work such as winding a tape spirally around the wire harness WH is not necessary. Therefore, the efficiency of the work of manufacturing the wire harness WH1 with a protector is improved.

[0116] In addition, in the manufacturing method of the wire harness WH1 with a protective member involved in the present embodiment, it is possible to perform the operation of installing a plurality of wire harness protective members 1 on the wire harness WH in parallel or simultaneously. In this case, in the process of placing the protective body 2, a plurality of protective bodies 2 may be placed on one groove portion 110. The plurality of protective bodies 2 may be placed at different positions along the axial direction X of the wire harness WH, for example. It is also possible to configure a plurality of welding machines 200 for one groove portion 110 according to the number of protective bodies 2 placed. Alternatively, the welding of the plurality of protective bodies 2 may be performed by one welding machine 200.

[0117] The jig 100 may include a plurality of grooves 110 corresponding to the plurality of protectors 2 and a plurality of welding machines 200 corresponding to the respective grooves 110 .

[0118] As described above, the wire harness protector 1 of the present embodiment has a protective body 2 and a fixing portion 3. The protective body 2 is composed of a plurality of overlapping sheets 10. The fixing portion 3 fixes the two end portions 2a of the protective body 2 to each other when the protective body 2 is wound around the wire harness WH. The plurality of sheets 10 have the same material and the same shape. The plurality of sheets 10 include a first sheet 10A and a second sheet 10B. The second sheet 10B is arranged at a position offset relative to the first sheet 10A in the axial direction X of the wire harness WH, and partially overlaps with the first sheet 10A.

[0119] The protective body 2 has an inner side surface 2b that is opposite to the wire harness WH when wound on the wire harness WH. The protective body 2 is wound on the wire harness WH in such a manner that the inner side surfaces 2b of the two end portions 2a of the protective body 2 are opposite to each other to form a joining surface extending along the axial direction X. The fixing portion 3 fixes the two end portions 2a of the protective body 2 to each other along the opposing direction Op in which the inner side surfaces 2b of the two end portions 2a of the protective body 2 are opposite to each other. In the protective part 1 for wire harness involved in the present embodiment, protective parts with different required protective performance can be manufactured from the same sheet 10. Therefore, according to the protective part 1 for wire harness of the present embodiment, the types of components required for protective parts with different protective performance can be reduced.

[0120] The fixing portion 3 may also be formed by welding the sheets 10 at the two end portions 2a of the protection body 2. In this case, the process of forming the fixing portion 3 can be automated and the efficiency can be improved. In the low-rigidity portion 15, the two end portions 2a of a sheet 10 may be welded to form the fixing portion 3. In the high-rigidity portion 16, the two end portions 2a of a plurality of sheets 10 may be welded to form the fixing portion 3.

[0121] In the wire harness protector 1 , the plurality of fixing portions 3 may be arranged at intervals along the axial direction X of the wire harness WH. In this case, the wire harness protector 1 can be flexibly bent.

[0122] The manufacturing method of the wire harness with a protective member involved in the present embodiment includes a process of placing the protective member 2, a process of accommodating the wire harness WH, and a fixing process. In the process of placing the protective member 2, the protective member 2 formed by overlapping a plurality of sheets 10 is placed on the groove 110 of the jig 100. In the process of accommodating the wire harness WH, the wire harness WH is accommodated in the protective member 2 placed on the groove 110. In the fixing process, the two end portions 2a of the protective member 2 are fixed to each other by the fixing portion 3 to mount the protective member 2 on the wire harness WH. According to the manufacturing method of the wire harness with a protective member involved in the present embodiment, the process of mounting the protective member on the wire harness WH is made more efficient.

[0123] The contents disclosed in the above-mentioned embodiments can be executed in combination as appropriate.

Claims

1. A protective member for a wire harness, characterized in that: The invention comprises: a protection body, the protection body being composed of a plurality of overlapping sheets; and a fixing part, fixing both ends of the protection body to each other when the protection body is wound around the wire harness. The plurality of sheets have the same material and the same shape, The plurality of sheets include a first sheet and a second sheet, The second sheet is arranged at a position offset from the first sheet in the axial direction of the wire harness and partially overlaps the first sheet. The protection body has an inner side surface facing the wire harness when the protection body is wound around the wire harness. The protection body is wound around the wire harness in such a manner that the inner side surfaces of both end portions of the protection body face each other and form a joint surface extending in the axial direction. The fixing portion fixes both ends of the protection body to each other along an opposing direction in which the inner side surfaces of both end portions of the protection body oppose each other.

2. The wire harness protection member according to claim 1, characterized in that: The fixing portion is formed by welding the sheets at both end portions of the protection body.

3. The wire harness protection member according to claim 1 or 2, characterized in that: The plurality of fixing portions are arranged at intervals along the axial direction of the wire harness.

4. A method for manufacturing a wire harness with a protective member, characterized in that: include: The step of placing a protective body formed by overlapping a plurality of sheets on a groove of a jig; The step of accommodating the wire harness in the protection body placed on the groove; as well as A step of fixing both end portions of the protector to each other using a fixing portion to attach the protector to the wire harness.

Images