Protective member and wire harness
The protective member with deformable folds and a fixing mechanism addresses exposure issues in wire harnesses, enhancing protection and adaptability.
Patent Information
- Application Number
- JP2024066680
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-10-29
AI Technical Summary
Existing wire harnesses face issues with protective performance due to exposure between electrical components and fixed locations, potentially causing damage from interference.
A protective member with a protective body and fixing part that covers the exposed electric wire portion between electrical components and the outer casing, featuring deformable folds and a fixing mechanism to secure it to the exterior material.
Enhances protective performance by preventing interference and damage to the wire harness, ensuring reliable coverage and versatility across various wire configurations.
Smart Images

Figure 2025163435000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to, for example, a protective member and a wire harness protected by the protective member. [Background technology]
[0002] Various electrical components mounted on vehicles such as automobiles are electrically connected to one another by wire harnesses made up of multiple covered electric wires, etc. Such wire harnesses are covered with an exterior material, such as that described in Patent Document 1, for the purpose of preventing damage due to interference with other components arranged nearby.
[0003] Furthermore, the end portion of the wire harness sheathed with the above-mentioned exterior material is provided with electrical components such as connection terminals and connectors. Therefore, the wire harness is exposed between the end portion of the exterior material and the electrical components. In such a case, when the electrical components are fixed to a predetermined location on the vehicle, the exposed portion of the wire harness may interfere with the predetermined location on the vehicle, potentially damaging the wire harness. [Prior art documents] [Patent documents]
[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-005366 Summary of the Invention [Problem to be solved by the invention]
[0005] An object of the present invention is to provide a protective member that can further improve protective performance and a wire harness protected by the protective member. [Means for solving the problem]
[0006] This invention is characterized in that an electric wire has an electric member at its end that is fixed to a fixed location, and is sheathed at a predetermined position from the electric member with an outer casing, and is provided with a protective part main body that protects an exposed electric wire portion where the electric wire is exposed between the electric member and the outer casing, and a fixing part that fixes the protective part main body to the outer casing, and the protective part main body is a protective member that is arranged on the fixing surface side of the electric member that is to be fixed to the fixed location, relative to the exposed electric wire portion.
[0007] The fixed location is a target to which the electrical member is fixed, and may be, for example, a body panel of a vehicle, or the electrical equipment itself to be mounted. The electrical members refer to those for connecting electric wires to other electrical equipment, and include, for example, terminals such as so-called round terminals and open-end terminals that are fixed to a fixed location with a bolt, and connectors.
[0008] The electric wires include coated electric wires, wire harnesses formed by bundling the coated electric wires, communication cables such as optical fiber cables, bundles of the communication cables, and bundles of wire harnesses and bundles of the communication cables. The sheathing material is not particularly limited as long as it is used to sheathe the electric wire, and may be, for example, a tube or a pipe, or a box-shaped so-called protector that protects the electric wire.
[0009] The fixing part is not particularly limited in shape or configuration as long as it can fix the protection part main body to the exterior material, and may be fixed by, for example, wrapping a fixing part formed in a plate shape around the exterior material and then wrapping the entire exterior material with tape, etc. Furthermore, the fixing part and the exterior material, each having an engaging part and an engaged part, may be fixed by engaging with each other. The above-mentioned fixing surface of the electrical member to the fixed location refers to the surface of the electrical member that faces the fixed location when the electrical member is fixed to the fixed location.
[0010] The present invention is also characterized in that the wire harness is protected by the above-mentioned protective member, and includes an electric wire having an electric member at an end thereof that is fixed to a fixed location, an outer casing covering a predetermined position from the electric member, and an electric wire exposed portion where the electric wire is exposed between the electric member and the outer casing.
[0011] According to this invention, the protective performance of the protective member can be further improved. More specifically, the protective element has an electrical component at its end that is fixed to the fixed location, a protective body that protects the exposed portion of the electric wire where the electric wire is exposed between the electrical component and the exterior material, and an exterior material that covers the predetermined position from the electrical component, and a fixing part that fixes the protective body to the exterior material, and the protective body is arranged on the fixing surface side of the electrical component that is fixed to the fixed location, relative to the exposed portion of the electric wire.
[0012] That is, the protective member can be placed on the exposed portion of the electric wire where it is difficult to cover the electric wire with an exterior material due to the shape or form of the electric wire and the electric wire is unavoidably exposed, thereby protecting the exposed portion of the electric wire. This can reliably prevent, for example, interference between the exposed portion of the electric wire and the fixed portion. Therefore, the protective performance of the protective member can be further improved.
[0013] As an aspect of the present invention, the protection body may be formed in a plate shape and may be provided with a linear deformation portion that deforms the outer shape. The above-mentioned deformation of the outer shape includes, for example, deformation by bending a part of the protective body formed in a plate shape, or deformation by cutting off a part of the protective body.
[0014] According to this invention, the protective body can be deformed by the deformation portion, and the shape of the protective body can be changed by the deformation portion in accordance with various forms of the exposed electric wire portion, so that the protective body can be used regardless of the form of the exposed electric wire portion.
[0015] In another aspect of the present invention, the deformation portion is composed of a fold that allows a portion of the protective portion main body to be folded, and the fold may be provided with at least one of an extension side fold that folds in the extension direction of the electric wire, and a cross side fold that folds in a cross direction that intersects with the extension direction. The fold may be formed as a continuous line on the protection body or as a broken line.
[0016] According to this invention, the size of the protective part main body in the extension direction and the size of the protective part main body in the intersecting direction can be changed simply by folding the protective part main body along at least one of the extension-side fold and the intersecting-side fold, which means that the shape of the protective part main body can be more easily changed to suit various aspects of the exposed wire portion.
[0017] As another aspect of the present invention, an annular fastener may be provided for fastening the protector main body to the exposed electric wire portion, and a mounting portion for mounting the fastener may be provided on the protector main body. The fixing device is not particularly limited as long as it is annular and can fix the protective part main body to the electric wire, and may be, for example, a so-called cable tie, or a string-like or band-like body formed into a ring by binding the ends together. The attachment part is not particularly limited in shape or configuration as long as it can attach the fixing device. For example, the protection part main body may have a through hole, or may be a protruding piece protruding from the protection part main body.
[0018] This invention can prevent the protector main body from accidentally moving relative to the exposed wire portion, that is, can prevent the protection state of the protector main body for the exposed wire portion from being accidentally lost, and can more reliably protect the exposed wire portion.
[0019] In another aspect of the present invention, the deformation portion is composed of a fold that can fold a portion of the protective portion main body, and the fold has at least one of an extension side fold that folds in the extension direction of the electric wire and a cross side fold that folds in a cross direction that crosses the extension direction, and there may be multiple cross side folds, and there may be multiple attachment portions and they may be provided outside the cross side folds.
[0020] According to this invention, since the protective part main body has multiple cross-side folds, the protective part main body can be formed into a concave cross-section when viewed from the extension direction, for example, by folding the protective part main body in the same direction at the cross-side folds provided at both ends in the cross direction. This allows the electric wire to be housed in the cross-sectionally concave protective part main body, and the exposed electric wire portion can be protected while suppressing relative movement between the protective part main body and the electric wire. Furthermore, a fastener can be attached to the attachment portion provided outside the cross-side folds, and the fastening force of the fastener can be applied to the portion folded at the cross-side folds. In other words, the fastener can maintain the cross-sectionally concave folded state of the protective part main body, reliably preventing the protective part main body from accidentally falling off the electric wire. Therefore, the protective performance of the protective member can be further improved.
[0021] When folding the protective body at the cross-side folds, for example, two cross-side folds provided on one side of the protective body in the cross direction can be folded in the same direction. In this case, the protective body is formed with a cross-sectional concave shape facing sideways when viewed from the extension direction, so that, for example, the exposed wire portion can be protected from both the fixing surface side to the fixing location of the electrical component and the opposite side.
[0022] In another aspect of the present invention, the fixed portion side is the base end side, the side opposite the base end side is the tip end side, a plurality of the electric wires are provided and bundled together and sheathed with the outer casing material, two of the attachment portions provided at a predetermined interval in the intersecting direction are formed into a set of attachment portions, a plurality of the attachment portion sets are provided, and the spacing between the attachment portions in the attachment portion set may be set to become narrower as it moves from the tip end side to the base end side.
[0023] According to this invention, the versatility of the protection member can be further improved. Specifically, because multiple electric wires are bundled, the size of the exposed electric wire portion in the cross direction decreases from one side to the other along the extension direction of the electric wires. Furthermore, in the protector main body, the spacing between the attachment portions in the multiple attachment portion sets decreases from the distal end to the proximal end. Therefore, for example, when the number of electric wires is large, the distal attachment portion set with a wider spacing can be used, and when the number of electric wires is small, the proximal attachment portion set with a narrower spacing can be used. In this way, by appropriately changing the attachment portion set to which the fastener is attached depending on the number of electric wires, the protector main body can be used regardless of the shape of the exposed electric wire portion. This further improves the versatility of the protective member.
[0024] In another aspect of the present invention, the fixing portion side may be the base end side, the side opposite the base end side may be the tip end side, a plurality of the electric wires may be provided, bundled together and sheathed with the sheathing material, and the tip end of the protective portion main body may be formed so as to be concave toward the base end side.
[0025] The concave shape may be, for example, an arc shape in plan view of the distal end of the protective part main body extending toward the proximal end, or may be formed by a plurality of intersecting straight lines. Furthermore, the concave shape may include not only an original concave shape, but also a shape formed by deforming a part of the protective part main body.
[0026] According to the present invention, the protection performance can be further improved. For example, when so-called crimp terminals such as round terminals or flap terminals for fastening electric wires to fixed locations with bolts are used as the above-mentioned electrical components, the crimp terminals may be stacked and fixed so as to be slightly offset in the circumferential direction of the bolt in order to prevent interference between the electric wires connected to each terminal. Note that a crimp terminal is a terminal that is attached by crimping an electric wire, and it does not matter whether it is crimped or not.
[0027] In such cases, the tip portions of the electric wires are arranged so as to form a substantially arc-shaped arc in the circumferential direction. That is, the length of both end portions of the exposed wire portion in the cross direction is longer than the length of the central portion. Therefore, if the end portions of the protective part main body were formed linearly and matched to the length of the exposed wire portion in the cross direction central portion, the exposed wire portions on both sides in the cross direction would protrude from the protective part main body and would not be protected. However, by forming the tip end of the protective part main body to be concave toward the base end, even both end portions of the exposed wire portion in the cross direction can be protected by both end portions of the protective part main body in the cross direction, thereby more reliably protecting the exposed wire portions. Therefore, when a crimp terminal is used as the electrical component, the protective performance can be further improved.
[0028] As another aspect of the present invention, the fixing portion may be formed in a plate shape and may be provided with a linear fixing portion-side deformation portion that deforms the outer shape. The above-mentioned deformation of the outer shape includes, for example, deformation by bending a part of the fixing part formed in a plate shape, and deformation by cutting off a part of the fixing part.
[0029] According to this invention, the fixing portion can be deformed by the fixing portion-side deformation portion. This allows the shape of the protective portion main body to be deformed by the deformation portion to fit various shapes of exterior materials, for example, so the fixing portion can be used regardless of the type of exterior material. This improves the versatility of the protective member. Furthermore, by deforming the fixing portion to fit the exterior material, the workability of fixing the fixing portion to the exterior material can be improved, and therefore the workability of fixing the protective member to the exterior material can also be improved.
[0030] In another aspect of the present invention, the fixed portion-side deformation portion may be a cut-off line that allows a portion of the deformed portion to be cut off. According to this invention, the fixing part can be deformed to fit various types of exterior packaging materials simply by cutting off a part of the fixing part along the breaking portion, so the fixing part can be used regardless of the type of exterior packaging material, thereby further improving the versatility of the protective member. [Effects of the Invention]
[0031] According to the present invention, it is possible to provide a protective member that can further improve protective performance and a wire harness protected by the protective member. [Brief explanation of the drawings]
[0032] [Figure 1] FIG. 2 is a schematic perspective view of the wire harness with the protection member fixed to the body panel. [Figure 2] FIG. 2 is a schematic exploded perspective view of a wire harness with a protective member. [Figure 3] An explanatory diagram of an electric wire with terminals. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. 2 is an explanatory diagram of a wire harness with a protective member. [Figure 7] FIG. 10 is an explanatory diagram of a wire harness with a protection member according to another embodiment. [Figure 8]FIG. 10 is an explanatory diagram of a wire harness with a protection member according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0033] An embodiment of the present invention will be described in detail below with reference to FIGS. (First embodiment) Fig. 1 shows a schematic perspective view of a wire harness 1 with a protective member in a state where it is fixed to a body panel P, and Fig. 2 shows a schematic exploded perspective view of the wire harness 1 with a protective member. Fig. 3 shows an explanatory diagram of an electric wire 2 with a terminal, Fig. 4 shows a schematic plan view of a protective member 3, Fig. 5 shows an explanatory diagram of the protective member 3, and Fig. 6 shows an explanatory diagram of the wire harness 1 with a protective member.
[0034] 3, 5 and 6 will be described in detail. FIG. 3(a) shows a schematic perspective view of the electric wire with terminal 2, and FIG. 3(b) shows a schematic plan view of the electric wire with terminal 2 in a stacked state. FIG. 5(a) shows a schematic perspective view of the protective member 3 showing how it is deformed at the deformation portion 33 and the fixing portion-side deformation portion 37, and FIG. 5(b) shows a schematic plan view of the protective member 3 deformed at the deformation portion 33 and the fixing portion-side deformation portion 37, arranged on the electric wire with terminal 2. FIG. 6(a) shows a schematic end view of the wire harness with protective member 1 in a state where the cable tie 500 is inserted into the outer through-hole 341, and FIG. 6(b) shows a schematic end view of the wire harness with protective member 1 in a state where the cable tie 500 is tied and a pressing force F2 is applied to the outer bent portion 35. In FIG. 5(b), the electric wire with terminal 2 is shown with a dashed line to clarify the structure of the protective member 3, and the body panel P is not shown. 6(a) and 6(b) show schematic end views corresponding to the view seen from the arrow AA in FIG. 6(b).
[0035] Here, the extending direction of the terminal-attached electric wire 2 in Fig. 1 is defined as the extending direction L. In Fig. 1, the right rear side along the extending direction L is defined as the tip side La, and the left front side is defined as the base side Lb. Of the directions perpendicular to the extending direction L, the direction connecting the left rear side and the right front side in Fig. 1 is defined as the width direction W, and the up-down direction is defined as the height direction H. In Fig. 1, the upper side is defined as the upper side Hu, and the lower side is defined as the lower side Hd. The same applies to Figs. 2 to 8 below.
[0036] As shown in Figures 1 and 2, the wire harness 1 with protective member is arranged in a vehicle and is composed of a plurality of electric wires with terminals 2 fixed to a body panel P, and a protective member 3 that protects exposed electric wire portions 25 of the electric wires with terminals 2, which will be described later.
[0037] As shown in FIG. 3, the electric wire with terminal 2 is composed of a coated electric wire 21 having a conductor 21a exposed from the tip thereof, and a crimp terminal 22 crimped onto the tip of the coated electric wire 21. The coated electric wire 21 is a long electric wire in which an electrically conductive conductor 21a is surrounded by an insulating coating 21b. At the tip side La of the coated electric wire 21, the insulating coating 21b is stripped off to expose the conductor 21a, and a crimp terminal 22 (described later) is crimped to the exposed conductor 21a.
[0038] The crimp terminal 22 crimped onto the tip side La of the coated electric wire 21 is a so-called round terminal made of metal, and as shown in Figure 3(a), is integrally formed with a wire crimping portion 23 arranged on the base end side Lb and a tip mounting portion 24 provided on the tip side La of the wire crimping portion 23.
[0039] As shown in FIG. 3(a), the wire crimping portion 23 is a so-called open barrel that crimps the coated wire 21 with a barrel piece, and includes an insulation barrel 231 and a wire barrel 232 in a crimped state. The insulation barrel 231 is provided at the end of the base end side Lb of the electric wire crimping portion 23, and is formed into a substantially cylindrical shape by winding two barrel pieces around the insulating coating 21b of the coated electric wire 21 and crimping them. The wire barrel 232 is provided at the end of the tip side La of the electric wire crimping portion 23, and is formed into a cylindrical shape by winding two barrel pieces around the conductor 21a of the coated electric wire 21 and crimping them.
[0040] The crimping shape of the wire crimping portion 23 to the insulating coating 21b and the conductor 21a is not limited to the cylindrical shape described above, and various crimping shapes are possible. For example, each of the two barrel pieces may be curved in a mountain shape when viewed from the front, and may be crimped so that the main surfaces of the tip portions face each other, or it may be a so-called closed barrel in which a cylindrically formed barrel is crimped onto the conductor 21a.
[0041] 3(a), the tip attachment portion 24 is in the form of a plate extending from the tip side La of the wire crimping portion 23. Specifically, the tip attachment portion 24 is integrally configured by arranging, in this order from the base end side Lb toward the tip side La, a plate-like body that is generally rectangular in plan view and has a width generally equal to that of the wire crimping portion 23, and a plate-like body that is generally annular in plan view and larger than the plate-like body in the extension direction L and width direction W.
[0042] The plate-shaped tip attachment portion 24 has a circular terminal through-hole 241 , a rotation-preventing piece 242 , and a rotation-preventing recess 243 . As shown in FIG. 3(a), the terminal through-hole 241 is a hole provided in the approximate center of the tip attachment portion 24 in a plan view, and has an inner diameter that allows the threaded portion of the bolt 100, which will be described later, to be inserted therethrough.
[0043] The anti-rotation pieces 242 are plate-like bodies that protrude from the outer edge of the plate-like tip attachment part 24 toward the upper side Hu, and are provided at two locations on the tip attachment part 24. The anti-rotation recess 243 is a recess formed by recessing into a predetermined shape the outer edge portion of the plate-shaped tip attachment part 24. And, like the anti-rotation piece 242, such anti-rotation recess 243 is provided in two places on the tip attachment part 24.
[0044] In this embodiment, eight terminal-attached electric wires 2 configured in this manner are provided as shown in FIG. 2 and FIG. 3(b). More specifically, eight crimp terminals 22 of the above-described electric wire with terminal 2 are stacked with the terminal through-holes 241 arranged in communication with each other in the height direction H. As shown in Fig. 3(b), the crimp terminals 22 are stacked while being rotated by a predetermined angle in the circumferential direction of the circular terminal through-hole 241. As a result, in the stacked crimp terminals 22, the anti-rotation recesses 243 and the anti-rotation pieces 242 fit together to restrict unintended relative rotation and suppress interference between the insulated electric wires 21.
[0045] Furthermore, by stacking the crimp terminals 22 in this manner while shifting them from one another, the tip side La of the coated electric wire 21 crimped to the crimp terminal 22 is arranged so as to form an approximately arc shape along the width direction W and extension direction L (see Figure 3(b)).
[0046] In this manner, the electric wire with terminal 2, which is made up of eight insulated electric wires 21 and the crimp terminal 22, has the insulated electric wires 21 bundled together at the base end side Lb of the crimp terminal 22. In the electric wire with terminal 2, the bundled eight insulated electric wires 21 are sheathed by an outer jacket 300 (see FIG. 2).
[0047] The exterior material 300 is a so-called corrugated tube made of flexible resin, and has a predetermined inner diameter that allows the eight bundled coated electric wires 21 to be inserted therethrough. By providing such an outer casing 300, eight coated electric wires 21 are exposed from the tip side La of the outer casing 300. Here, the portion where the coated electric wires 21 are exposed between the base end side Lb of the crimp terminal 22 and the tip side La of the outer casing 300 is referred to as an exposed electric wire portion 25 (see FIGS. 2 and 3).
[0048] As shown in Figures 2 and 4, the protective member 3 that protects the exposed wire portion 25 of such a terminal-equipped electric wire 2 is integrally composed of a protective portion main body 31 that protects the exposed wire portion 25 of the above-mentioned terminal-equipped electric wire 2 and a fixing portion 32 that fixes the protective portion main body 31 to the exterior material 300.
[0049] The protection body 31 is a plate of a predetermined shape having a predetermined thickness in the height direction H, and is formed to be sufficiently larger in the width direction W than the above-mentioned exposed electric wire portion 25 . Specifically, the protector main body 31 has an end portion on the distal end side La formed in an arc shape toward the proximal end side Lb with a width slightly smaller than the distance between outer folds 331a (described later) (see FIG. 4). Here, the edge of the protector main body 31 that forms the arc shape is referred to as an end portion 31x. As shown in FIGS. 2 and 4, the protector main body 31 has a deformation portion 33 and a through hole 34.
[0050] The deformation portion 33 is a portion that can deform the outer shape of the plate-shaped protective body 31, and is composed of a plurality of folds 331 provided on the main surface of the protective body 31. The folds 331 are linear and formed along the extension direction L, and a total of four folds are provided on the protective body 31.
[0051] Specifically, there are four folds 331, one at each end of the protection body 31 in the width direction W at a predetermined distance inward, and another at each end at a predetermined distance inward from those ends in the width direction W. Of the folds 331, the one on the outside in the width direction W is referred to as outer fold 331a, and the one on the inside in the width direction W is referred to as inner fold 331b.
[0052] Furthermore, in the protector main body 31, the outer portion of the outer fold 331a in the width direction W is defined as an outer folded portion 35, and the outer portion of the inner fold 331b in the width direction W is defined as an inner folded portion 36. Both the outer fold 331a and the inner fold 331b are formed over the entire length of the protector main body 31 in the extension direction L.
[0053] By providing such outer folds 331a and inner folds 331b, the protection body 31 is configured so that the outer folding portion 35 and the inner folding portion 36 can be folded in the width direction W relative to other parts of the protection body 31.
[0054] The through-holes 34 are holes formed by penetrating the protection body 31 in the height direction H, and are formed into a substantially rectangular shape in a plan view. A total of four such through-holes 34 are provided in the protection body 31. Specifically, the protector main body 31 is provided with four through holes 34, one in each of the outer bent portions 35 and one in each of the inner bent portions 36. Of the through holes 34, the one provided in the outer bent portion 35 is referred to as an outer through hole 341, and the one provided in the inner bent portion 36 is referred to as an inner through hole 342. In the protector main body 31, the outer through hole 341 is located closer to the tip end La than the inner through hole 342.
[0055] Furthermore, the outer through holes 341 and the inner through holes 342 are provided at the same positions along the extension direction L. Here, two through holes 34 provided at a predetermined interval in the width direction W are considered to be a hole pair. That is, the outer through holes 341 are considered to be a pair of outer hole pairs 34a, and similarly, the inner through holes 342 are considered to be a pair of inner hole pairs 34b (see FIG. 4).
[0056] The fixing part 32 that fixes the protector main body 31 to the exterior covering 300 is a plate-like body that extends by a predetermined width from the end of the base end side Lb of the protector main body 31 and from the center in the width direction W. The fixing part 32 is formed to have approximately the same thickness as the protector main body 31. The fixing part 32 is formed in a rectangular shape along the width direction W, with long sides that are sufficiently longer than the outer diameter of the exterior covering 300.
[0057] As shown in FIG. 4, the fixed portion 32 has a plurality of fixed portion-side deformation portions 37. The fixed portion-side deformation portion 37 is a portion that can deform the outer shape of the plate-like fixed portion 32, and is provided with a fixed portion-side cut line 371 and a fixed portion-side fold 372.
[0058] The fixed portion-side cut lines 371 are two cut lines provided at positions spaced a predetermined distance apart from both end portions of the fixed portion 32 in the width direction W toward the inside. The fixed portion-side cut lines 371 are formed by making dashed cuts in the main surface of the fixed portion 32. The fixed portion-side cut lines 371 are formed over the entire length of the fixed portion 32 in the extension direction L.
[0059] The fixed portion-side folds 372 are two lines provided further inward in the width direction W than the fixed portion-side cut lines 371 in the fixed portion 32. Like the fixed portion-side cut lines 371, the fixed portion-side folds 372 are formed over the entire length of the fixed portion 32 in the extension direction L. By providing such a fixed portion side fold 372, the fixed portion 32 is configured so that the portion outside the fixed portion side fold 372 in the width direction W can be folded in the width direction W relative to other portions of the fixed portion 32.
[0060] Furthermore, the protective member 3, which is integrally formed of the protective body 31 and the fixing portion 32 in this manner, is provided with a boundary cut line . The boundary cut line 38 is a dashed cut line along the width direction W at the boundary between the protection part main body 31 and the fixing part 32, and has a predetermined length. Specifically, the boundary cut line 38 is provided from both end portions of the fixing part 32 in the width direction W to the fixing part-side fold 372.
[0061] The protective member 3 thus configured is made of a flat, flexible resin sheet that can be bent. Specifically, the resin sheet constituting the protective member 3 is a thermoplastic resin foam sheet made of a synthetic resin foam molded into a foamed or porous shape, and has a predetermined rigidity as well as flexibility, elasticity, and thermoplasticity. Furthermore, since the protective member 3 is configured in a sheet shape, it is easy to process. Furthermore, it is lighter than a molded resin product (e.g., made of polypropylene) of the same shape as the protective member 3.
[0062] The density of the resin foam sheet constituting the resin sheet is not particularly limited. However, for example, in order to make the mechanical properties isotropic, improve the degree of freedom in designing the protective member 3, and further improve the strength against stress to the terminal-attached electric wire 2 sheathed in the protective member 3, it is preferable to set the density to 200 kg / m. 3 More than 1000Kg / m 3 In order to further improve the balance between lightness and mechanical strength, it is preferable that the weight is 300 kg / m or less. 3 More than 600Kg / m 3 Less than 350Kg / m is more preferable. 3 More than 550Kg / m 3 The following are particularly preferred:
[0063] The thickness of the resin sheet is not particularly limited. However, for example, from the viewpoint of further improving the balance between ease of bending and mechanical strength, particularly mechanical strength against stress on the terminal-attached electric wire 2 sheathed in the protective member 3, the thickness is preferably 0.50 mm or more and 4.0 mm or less, and particularly preferably 1.0 mm or more and 2.5 mm or less. The thermoplastic resin foam sheet may have a non-foamed layer formed on one or both sides thereof.
[0064] That is, the resin sheet (thermoplastic resin foam sheet) may have a foam layer and a non-foam layer formed on the foam layer. By forming a non-foam layer on the surface of the thermoplastic resin foam sheet, the mechanical strength of the protective member 3 is improved, and the protective performance of the terminal-attached electric wire 2 to be sheathed is further improved. The thickness of the non-foam layer is not particularly limited, and may be, for example, 10 μm or more and 100 μm or less.
[0065] The cell density of the foamed layer of the resin sheet is not particularly limited, and the lower limit is 800 cells / mm 3 in order to more reliably prevent anisotropy of the mechanical properties. 3 More than 1000 pieces / mm 3 On the other hand, the upper limit of the cell density is set to, for example, 10 cells / mm from the viewpoint of more reliably obtaining excellent mechanical strength. 3 The following can be mentioned:
[0066] The protective member 3 configured in this manner can form a wire harness 1 with a protective member in which the protective part main body 31 is fixed to the exposed wire portion 25 of the terminal-equipped electric wire 2 by fixing the fixing portion 32 to the outer casing material 300. A method for constructing the wire harness 1 with a protection member will be described below with reference to FIGS.
[0067] First, the protective member 3 is deformed at the deformation portion 33 so as to correspond to the shape of the exposed electric wire portion 25 of the electric wire 2 with terminal in a plan view. Specifically, as shown in Fig. 5(a), the outer folded portions 35 are valley-folded toward the upper side Hu at outer folds 331a relative to other portions of the protector main body 31 (see arrow A1 in Fig. 5(a)). This allows the protector main body 31 to be formed into a generally concave shape capable of accommodating the exposed-wire portions 25 when viewed from the extension direction L.
[0068] The fixing portion 32 also deforms at the fixing portion side deformation portion 37 and the boundary cut line 38 so as to correspond to the shape of the exterior packaging material 300 in plan view. Specifically, a portion of both end portions of the fixing portion 32 in the width direction W is cut off along the fixing portion side cut line 371 and the boundary cut line 38 (see arrow A2 in FIG. 5(a)). This shortens the length of the fixing portion 32 in the width direction W.
[0069] Then, the fixing portion 32 deformed as described above is further deformed at the fixing portion side fold 372 . Specifically, the portion of the fixing part 32 that is outside the fixing part-side fold 372 is folded toward the upper side Hu at the fixing part-side fold 372 relative to the other portions (see arrow A3 in FIG. 5(a)). This allows the fixing part 32 to be formed into a generally concave shape that can accommodate a part of the exterior material 300 when viewed from the extension direction L.
[0070] In order to valley-fold the fixing part 32 at the fixing-part-side fold 372, the tip side La of the fixing part 32 needs to be separated from the protection part main body 31. Here, by cutting the tip side La of the fixing part 32 from the protection part main body 31 at the above-mentioned boundary cut line 38, the tip side La of the fixing part 32 is separated from the protection part main body 31. Therefore, it is possible to valley-fold the fixing part 32 at the fixing-part-side fold 372.
[0071] Then, with a circumferential portion of the outer casing 300 accommodated in the deformed fixing portion 32, the fixing portion 32 and a portion of the tip side La of the outer casing 300 are wrapped with tape (see FIG. 1). This allows the fixing portion 32 to be fixed to the outer casing 300. In the above explanation, the protective member 3 is described in the order of deforming the protective main body 31 and then the fixing portion 32, but for example, the fixing portion 32 may be deformed first and then the protective main body 31 may be deformed.
[0072] Then, the protective member 3 with the protective portion main body 31 and the fixing portion 32 deformed in this way is placed on the lower side Hd of the electric wire with terminal 2 and fixed to the exterior material 300. Specifically, the protector main body 31 is disposed on the base end side Lb of the tip attachment portion 24 of the crimp terminal 22 and on the lower side Hd of the exposed electric wire portion 25, and the fixing portion 32 is disposed on the lower side Hd of the outer casing 300. A part of the lower side Hd of the outer casing 300 is then housed in the fixing portion 32 that has been deformed into a concave shape, and the fixing portion 32 and the outer casing 300 are fixed together by wrapping tape around them. In this way, the wire harness 1 with the protector member can be configured in which the protector main body 31 is fixed to the lower side Hd of the exposed electric wire portion 25.
[0073] The wire harness 1 with protective member configured in this manner is fixed to the body panel P by connecting and fastening a bolt hole P1 provided in the body panel P to the terminal through hole 241 of the crimp terminal 22 in the terminal-equipped electric wire 2 with a bolt 100 (see Figure 2).
[0074] Then, by fixing the wire harness 1 with a protective member to the body panel P, the protective member 3 is disposed between the electric wire exposed portion 25 and the body panel P. This prevents interference between the electric wire exposed portion 25 and the body panel P including the protrusion, for example, even if the body panel P is provided with a protrusion or the like. Therefore, the wire harness 1 with a protective member fixed to the body panel P can protect the electric wire exposed portion 25 from the lower side Hd, and therefore, damage to the coated electric wires 21 can be reliably prevented.
[0075] In the protector main body 31, the folds 331 constituting the deformation portion 33 include inner folds 331b in addition to the outer folds 331a described above. Therefore, even if the shape of the exposed electric-wire portions 25 changes due to a change in the number of electric wires 2 with terminals, for example, the protector main body 31 can protect the electric wires 2 with terminals. Below, a brief description will be given of a case where the protector main body 31 protects an electric wire 2a with a terminal-attached electric wire 2a having an exposed electric-wire portion 25a with a different shape from the exposed electric-wire portion 25 with reference to FIGS. 7 and 8.
[0076] (Second embodiment) Here, Figure 7(a) shows a schematic oblique view of the state in which the protective member 3 deformed at the inner fold 331b is placed on the terminal-attached electric wire 2a, and Figure 7(b) shows a schematic plan view of the state in which the protective member 3 deformed at the inner fold 331b is placed on the terminal-attached electric wire 2a.
[0077] Fig. 8(a) shows a schematic end view of the wire harness 1 with a protective member in a state where the cable tie 500 is inserted into the inner through-hole 342, and Fig. 8(b) shows a schematic end view of the wire harness 1 with a protective member in a state where the cable tie 500 is fastened and a pressing force F2 is applied to the inner bent portion 36. Note that in Fig. 7(a), the body panel P is not shown, and in Fig. 7(b), the terminal-attached electric wire 2a is shown by a broken line to clarify the structure of the protective member 3. Also, in Figs. 7 and 8, the outer bent portion 35 is not shown. Figs. 8(a) and 8(b) are schematic end views corresponding to the view of the arrow BB in Fig. 7(b).
[0078] The electric wire with terminal 2a having the electric wire exposed portion 25a is similar to the electric wire with terminal 2 except that the numbers of the covered electric wires 21 and the crimp terminals 22 are different. Specifically, the electric wire with terminal 2a is configured with four covered electric wires 21 and four crimp terminals 22. For this reason, in the electric wire with terminal 2a, the electric wire exposed portion 25a between the crimp terminals 22 and the outer casing 300 is formed to be smaller in size along the width direction W than the above-mentioned electric wire exposed portion 25 (see FIG. 7(b)).
[0079] Even in the case of such an electric wire with terminal 2a, the protective member 3 can be deformed at the deformation portion 33 so as to correspond to the shape of the electric wire exposed portion 25a in a plan view. Specifically, the inner folded portion 36 of the protector main body 31 is valley-folded toward the upper side Hu at the inner fold 331b relative to the other portions (see FIG. 7(a)). This allows the length of the protector main body 31 along the width direction W to be shorter than when the protector main body 31 is deformed at the outer fold 331a described above, and allows the protector main body 31 to be formed into a generally concave shape capable of accommodating the exposed electric-wire portion 25a when viewed from the extension direction L.
[0080] The outer bent portions 35 (not shown) may be cut out from the protector main body 31, for example. Alternatively, the outer bent portions 35 may not be cut out, but may be valley-folded in advance at the outer folds 331a, and the inner bent portions 36 may then be valley-folded toward the upper side Hu at the inner folds 331b. This allows the protector main body 31 to be formed into a substantially cylindrical shape by the surface on which the exposed electric-wire portions 25a are placed and the two outer bent portions 35 and the two inner bent portions 36. In other words, the exposed electric-wire portions 25 can be protected not only from the lower side Hd but also from the upper side Hu.
[0081] Next, by deforming the fixing portion 32 at the fixing portion side cut line 371 and the fixing portion side fold 372 as described above, it is possible to form it into an approximately concave shape that can accommodate a portion of the outer casing material 300 when viewed from the extension direction L, similar to the protective portion main body 31. Then, by fixing the deformed fixing portion 32 to the outer casing 300, a wire harness 1 with a protective member can be constructed in which the protective portion main body 31 is fixed to the lower side Hd of the exposed wire portion 25a, as described above.
[0082] The wire harness 1 with protective member configured in this manner is also fixed to the body panel P by connecting and fastening the bolt hole P1 provided in the body panel P to the terminal through hole 241 of the crimp terminal 22 in the terminal-equipped electric wire 2a with the bolt 100.
[0083] Then, by fixing the wire harness 1 with a protective member to the body panel P, the protective member 3 is disposed between the electric wire exposed portion 25a and the body panel P. This prevents interference between the electric wire exposed portion 25a and the body panel P including the protrusion, for example, even if the body panel P is provided with a protrusion or the like. Therefore, the wire harness 1 with a protective member fixed to the body panel P can protect the electric wire exposed portion 25a from the lower side Hd, and therefore, damage to the coated electric wires 21 can be reliably prevented.
[0084] As described above, the protective member 3 has a protective part main body 31 that can accommodate various shapes of the wire exposed parts 25, 25a by deforming at the deformation part 33, for the wire exposed parts 25, 25a where the coated wire 21 is exposed between the outer casing 300 and the crimp terminal 22 in the terminal-attached wire 2, 2a.
[0085] The protective member 3 has a crimp terminal 22 at its end that is fixed to the body panel P, and is provided with a protective part main body 31 that protects the wire exposed portions 25, 25a where the coated wire 21 is exposed between the crimp terminal 22 and the outer casing 300 in the terminal-attached wires 2, 2a that are sheathed with an outer casing 300 at a predetermined position from the crimp terminal 22, and a fixing part 32 that fixes the protective part main body 31 to the outer casing 300, and the protective part main body 31 is arranged on the fixing surface side (lower side Hd) of the crimp terminal 22 to the body panel P, relative to the wire exposed portions 25, 25a.
[0086] The wire harness 1 with protective member has a crimp terminal 22 at its end, which is fixed to the body panel P, and a predetermined position from the crimp terminal 22 is sheathed with an outer casing 300. The terminal-attached electric wires 2, 2a have wire exposed portions 25, 25a where the coated electric wire 21 is exposed between the crimp terminal 22 and the outer casing 300, and are protected by the above-mentioned protective member 3.
[0087] This further improves the protection performance of the protection member 3. In more detail, the protective member 3 has a protective part main body 31 which has a crimp terminal 22 at its end which is fixed to the body panel P, and which protects the wire exposed portions 25, 25a where the coated wire 21 is exposed between the crimp terminal 22 and the outer casing 300 in the terminal-attached wires 2, 2a which are sheathed at a predetermined position from the crimp terminal 22 by the outer casing 300, and a fixing part 32 which fixes the protective part main body 31 to the outer casing 300, and the protective part main body 31 is arranged on the fixing surface side (lower side Hd) of the crimp terminal 22 to the body panel P, relative to the wire exposed portions 25, 25a.
[0088] That is, the protective member 3 can be disposed on the wire exposed portions 25, 25a where the wire 21 is inevitably exposed due to the shape or form of the wire 21 making it difficult to cover the wire 21 with the exterior covering material 300, thereby protecting the wire exposed portions 25, 25a. This can reliably prevent, for example, interference between the wire exposed portions 25, 25a and the body panel P. Therefore, the protective performance of the protective member 3 can be further improved.
[0089] Furthermore, since the protective part main body 31 is formed in a plate shape and is provided with linear deformation parts 33 that deform the outer shape, the protective part main body 31 can be deformed by the deformation parts 33. As a result, the shape of the protective part main body 31 can be deformed by the deformation parts 33 in accordance with various aspects of the electric wire exposed parts 25, 25a, and therefore the protective part main body 31 can be used regardless of the aspect of the electric wire exposed parts 25, 25a.
[0090] The deformation portion 33 is configured with folds 331 that can fold a portion of the protection portion main body 31. The folds 331 include outer folds 331a and inner folds 331b that fold the wire exposed portions 25, 25a in a width direction W that intersects with the extension direction L in which the coated wires 21 extend.
[0091] This allows the size of the protector main body 31 in the width direction W to be changed simply by folding the protector main body 31 at the outer fold 331a and the inner fold 331b. In other words, the shape of the protector main body 31 can be more easily changed in accordance with various aspects of the exposed wire portions 25, 25a.
[0092] Furthermore, annular cable ties 500 are provided to fix the protector main body 31 to the exposed electric wire portions 25, 25a, and the protector main body 31 is provided with through holes 34 to which the cable ties 500 are attached. This prevents the protector main body 31 from accidentally moving relative to the exposed electric wire portions 25, 25a. In other words, it is possible to prevent the state of the protector main body 31 protecting the exposed electric wire portions 25, 25a from being accidentally lost, and the exposed electric wire portions 25, 25a can be more reliably protected.
[0093] The deformation portion 33 is configured with folds 331 that can fold a portion of the protection portion main body 31. The folds 331 include outer folds 331a and inner folds 331b that fold the electric-wire exposed portions 25, 25a in a width direction W that intersects with the extension direction L of the coated electric wires 21. There are two outer folds 331a and two inner folds 331b, and four through holes 34 are provided, which are provided outside the outer folds 331a and inner folds 331b.
[0094] As a result, the protector main body 31 is folded in the same direction at the two outer fold line 331a and the inner fold line 331b, thereby forming a concave cross section when viewed from the extension direction L. Therefore, the insulated electric wire 21 can be housed in the protector main body 31 having the concave cross section, and the exposed-wire portion 25 can be protected while suppressing relative movement between the protector main body 31 and the insulated electric wire 21 in the width direction W. The cable tie 500 can be inserted into the through holes 34 (outer through hole 341, inner through hole 342) provided on the outside of the outer fold line 331a and the inner fold line 331b, and the binding force F1 of the cable tie 500 can be applied to the portions folded at the outer fold line 331a and the inner fold line 331b (outer bent portion 35, inner bent portion 36) (see FIGS. 6(a) and 8(a)). That is, the binding band 500 can maintain the protector body 31 folded into a concave cross section (see FIGS. 6(b) and 8(b)), and can reliably prevent the protector body 31 from accidentally falling off the coated electric wire 21. Therefore, the protective performance of the protective member 3 can be further improved.
[0095] When folding the protection body 31 at the fold 331, for example, the outer fold 331a and the inner fold 331b can be folded in the same direction. In this case, the protection body 31 can be formed to have a horizontally concave cross section when viewed from the extension direction L, so that, for example, the exposed wire portions 25, 25a can be protected from both the side of the crimp terminal 22 that is fixed to the body panel P (lower side Hd) and the opposite side (upper side Hu).
[0096] Furthermore, the side of the fixing portion 32 is the base end side Lb, and the side opposite the base end side Lb is the tip end side La, and a plurality of coated electric wires 21 are provided and bundled together and sheathed with an outer sheathing material 300, and outer through holes 341 and inner through holes 342 are provided at predetermined intervals in the width direction W to form a hole set, and the hole set includes an outer hole set 34a and an inner hole set 34b, and the interval between the through holes 34 in the outer hole set 34a and the inner hole set 34b is set so that it is narrower in the inner hole set 34b than in the outer hole set 34a.
[0097] This allows the versatility of the protection member 3 to be further improved. Specifically, because multiple insulated electric wires 21 are bundled, the width direction W of the exposed electric wire portions 25, 25a is formed to decrease from the distal end La to the proximal end Lb. Furthermore, in the protector main body 31, the spacing between the through holes 34 in the multiple hole sets decreases from the distal end La to the proximal end Lb. Therefore, for example, when the number of insulated electric wires 21 is large, the outer hole set 34a on the distal end La, which has a wider spacing, can be used. When the number of insulated electric wires 21 is small, the inner hole set 34b on the proximal end Lb, which has a narrower spacing, can be used. In this way, by appropriately changing the through holes 34 to which the cable ties 500 are attached depending on the number of insulated electric wires 21, the protector main body 31 can be used regardless of the type of the exposed electric wire portions 25, 25a. This further improves the versatility of the protective member 3.
[0098] In addition, the side of the fixing portion 32 is the base end side Lb, and the side opposite the base end side Lb is the tip end side La, and multiple coated electric wires 21 are provided, and the coated electric wires 21 are bundled and sheathed with an outer casing 300, and the end of the tip end side La in the protection portion main body 31 becomes an end 31x that is concave toward the base end side Lb.
[0099] This can further improve the protection performance. Specifically, crimp terminals 22, which are so-called round terminals, are used to fasten the insulated electric wires 21 to the body panel P with bolts 100. To prevent interference between the insulated electric wires 21 connected to the crimp terminals 22, the crimp terminals 22 are stacked and fixed so as to be slightly offset from each other in the circumferential direction of the bolt 100. As a result, the tip ends of the insulated electric wires 21 are arranged in a substantially arc-shaped manner in the circumferential direction. That is, the lengths of both end portions of the exposed electric wire portions 25, 25a in the width direction W are longer than the length of the central portion. Therefore, if the end portion of the tip side La of the protector main body 31 is formed linearly and is formed to match the length of the exposed electric wire portions 25, 25a in the central portion in the width direction W, the exposed electric wire portions 25, 25a on both sides in the width direction W will protrude from the protector main body 31 and will not be protected. However, because the end portion 31x on the tip side La of the protector main body 31 is recessed toward the base side Lb, both end portions of the protector main body 31 in the width direction W of the above-mentioned exposed wire portions 25, 25a can be protected by both end portions of the protector main body 31 in the width direction W. This makes it possible to more reliably protect the exposed wire portions 25, 25a. In this way, when the crimp terminal 22 is used as the electrical member, the protective performance can be further improved.
[0100] Furthermore, the fixing portion 32 is formed in a plate shape and is provided with a linear fixing portion-side deformation portion 37 that deforms the outer shape. As a result, the fixing portion 32 can be deformed by the fixing portion-side deformation portion 37, and therefore the protective portion main body 31 can be deformed by the fixing portion 32 to fit various shapes of the exterior packaging material 300, for example. In other words, the fixing portion 32 can be used regardless of the type of exterior packaging material 300. This improves the versatility of the protective member 3. Furthermore, by deforming the fixing portion 32 to fit the exterior packaging material 300, the workability of fixing the fixing portion 32 to the exterior packaging material 300 can be improved, and therefore the workability of fixing the protective member 3 to the exterior packaging material 300 can also be improved.
[0101] Furthermore, since the fixed-portion-side deformation portion 37 has the fixed-portion-side cutout line 371 that allows a portion of the fixed portion 32 to be cut away, the fixed portion 32 can be deformed to fit various aspects of the exterior packaging material 300 simply by cutting out a portion of the fixed portion 32 along the fixed-portion-side cutout line 371. This allows the fixed portion 32 to be used regardless of the aspect of the exterior packaging material 300, further improving the versatility of the protective member 3.
[0102] In the correspondence between the configuration of this invention and the above-mentioned embodiment, the fixed portion corresponds to the body panel P, and similarly, The electrical member corresponds to a crimp terminal 22, The exterior material corresponds to exterior material 300, The electric wire corresponds to the terminal-attached electric wire 2, 2a, The exposed electric wire portions correspond to the exposed electric wire portions 25 and 25a. The protection body corresponds to the protection body 31, The fixed portion corresponds to the fixed portion 32, The fixed surface side corresponds to the lower side Hd, The protective member corresponds to the protective member 3, The deformation portion corresponds to the deformation portion 33, The fold corresponds to fold 331. The extension direction corresponds to the extension direction L, The cross direction corresponds to the width direction W, The crossing folds correspond to the outer fold 331a and the inner fold 331b. The fixture is compatible with cable ties 500. The mounting portion corresponds to the through hole 34, One mounting set corresponds to the outer hole set 34a and the inner hole set 34b, The base end corresponds to the base end Lb, The tip side corresponds to the tip side La, The distal end corresponds to end 31x; The fixed portion side deformation portion corresponds to the fixed portion side deformation portion 37, The cut line corresponds to the cut line 371 on the fixed part side. The wire harness corresponds to the wire harness with protective material 1, The present invention is not limited to the configurations of the above-described embodiments, and many other embodiments can be obtained.
[0103] For example, the fixed location to which the terminal-equipped electric wires 2, 2a are fixed is the body panel P of the vehicle, but the fixed location is not limited to the body panel P. For example, the fixed location may be a mating connector for connecting the coated electric wire 21, or the like.
[0104] Furthermore, the crimp terminal 22 that crimps the coated electric wire 21 is used as the electrical member that fixes the coated electric wire 21 to the body panel P, but the electrical member is not limited to the crimp terminal 22. For example, the electrical member may be a connector that connects the coated electric wire 21 to other electrical equipment.
[0105] The crimp terminal 22 is a so-called round terminal having a circular terminal through-hole 241 at the tip mounting portion 24 through which the bolt 100 is inserted, but a so-called open-end terminal having the tip of the tip mounting portion 24 formed in a Y-shape when viewed from above may also be used.
[0106] Furthermore, the coated electric wire 21 is a so-called coated electric wire in which the conductor 21a is coated with an insulating coating 21b, but it may also be a communication cable such as an optical fiber cable, a bundle of communication cables, or a bundle of the coated electric wire 21 and a bundle of communication cables.
[0107] Although the exterior material 300 is configured as a so-called corrugated tube, there is no particular limitation as long as it is used to exteriorize the insulated electric wire 21, and it may be, for example, a spiral tube or a so-called heat-shrinkable tube made of a thermoplastic resin. Furthermore, it may be a pipe through which the insulated electric wire 21 is inserted, or a so-called box-shaped protector that can accommodate the insulated electric wire 21.
[0108] Furthermore, fixing part 32 is configured to be fixed by wrapping fixing part 32 formed in a plate shape around exterior material 300 and then wrapping tape around exterior material 300. However, fixing part 32 is not particularly limited in shape or configuration as long as it can fix protection part main body 31, and for example, the exterior material and fixing part, each having an engaging part and an engaged part, may be fixed by engaging with each other.
[0109] Furthermore, although the protective member 3 is configured to be attached to the lower side Hd of the crimp terminal 22 of the terminal-fitted electric wire 2, 2a, the attachment position of the protective member 3 is not limited to the lower side Hd and can be set appropriately depending on the manner in which the crimp terminal 22 of the terminal-fitted electric wire 2, 2a is fixed. For example, when the crimp terminal 22 is fixed to a body panel P provided on the upper side Hu, the protective member 3 may be attached to the upper side Hu of the crimp terminal 22.
[0110] Furthermore, although the fold 331 is formed as a continuous line in the protective body 31, it is not limited to a continuous line as long as it is a fold that can be used to fold the protective body 31, and may be formed as, for example, a broken line.
[0111] Although the cable tie 500 is used as a fastener for fixing the protector main body 31 to the coated electric wire 21, the fastener is not limited to the cable tie 500 as long as it is annular. For example, it may be a string-like or band-like body formed into an annular shape by fastening the ends together.
[0112] The protector main body 31 is provided with a through hole 34 having a rectangular shape in plan view as an attachment portion for attaching the cable tie 500. However, the shape of the through hole 34 is not limited as long as the cable tie 500 can be inserted therethrough, and it may be, for example, circular in plan view.
[0113] Furthermore, the attachment portion is not limited to a through hole, but may be a protruding piece protruding from the protective body 31, or a U-shaped notch may be made in the protective body 31 in a plan view, and a part of the protective body 31 may be folded back along the notch to form a configuration with a locking portion that can lock a fixing device.
[0114] Furthermore, the cable tie 500 is configured to bridge the upper side Hu of the wire exposed portion 25 when attaching the protective member 3 to the electric wire with terminal 2, and is configured to wrap the protective part main body 31 together with the insulated electric wire 21 having the wire exposed portion 25a when attaching the protective member 3 to the electric wire with terminal 2a. However, when attaching the protective member 3 to the electric wire with terminal 2, the cable tie 500 may be configured to wrap the protective part main body 31 together with the insulated electric wire 21, or when attaching the protective member 3 to the electric wire with terminal 2a, the cable tie 500 may be configured to bridge the upper side Hu of the wire exposed portion 25.
[0115] Furthermore, in the protective member 3, the fold 331 is configured to include an outer fold 331a and an inner fold 331b that fold in the width direction W that intersects with the extension direction L of the coated electric wire 21. However, for example, a fold that folds in the extension direction L may be provided. By providing such a fold, for example, when the body panel P has a step or an uneven shape along the extension direction L or when a connector or the like is used as the electrical component, the protective main body can be deformed at the fold to accommodate the shape of the body panel P or the connector. This further improves the versatility of the protective member 3. Note that the protective main body may include both the fold 331 and the fold that folds in the extension direction L, or only one of them.
[0116] The protector main body 31 has an end portion on the distal end side La formed in an arc shape toward the proximal end side Lb, and the edge forming the arc shape is the end portion 31x. However, the shape of the end portion 31x is not limited to an arc shape. For example, it may be formed by a plurality of straight lines that intersect with each other. Furthermore, the concave end portion 31x may be formed, for example, by deforming a portion of the protector main body 31.
[0117] Furthermore, in the fixed portion 32, the fixed portion-side deformation portion 37 is configured to include a fixed portion-side cut line 371 and a fixed portion-side fold 372. However, it is not necessarily necessary to include both the fixed portion-side cut line 371 and the fixed portion-side fold 372, and only one of them may be included.
[0118] Furthermore, in the above description, the boundary cut line 38 is configured as a dashed cut line, but the boundary cut line 38 is not limited to a dashed line, and for example, a notch may be made in advance at the boundary between the protective main body 31 and the fixing part 32. [Explanation of symbols]
[0119] 1...Wire harness with protective material 2, 2a...Wire with terminal 3...Protective material 22...Crimp terminal 25,25a…Exposed wire part 31...Protection unit main body 32…Fixed part 33...Deformed part 34...Through hole 34a…Outside hole set 34b…Inner hole set 37...Deformed part on fixed part side 300...Exterior material 331...crease 331a...outer fold 331b...inner fold 371...Fixed part side cut line 500…Cable ties Hd…lower side L…Extension direction La: Tip side Lb…Proximal side P...Body panel W: Width direction
Claims
1. a protection part main body that protects an exposed portion of the electric wire between the electric member and the exterior material, the electric member being attached to an end of the electric wire and being sheathed at a predetermined position from the electric member with an exterior material; and a fixing portion that fixes the protection portion main body to the exterior material, The protection body is disposed on the fixing surface side of the electrical member to the fixing portion with respect to the exposed electric wire portion. Protective material.
2. The protection body is formed in a plate shape and is provided with a linear deformation portion that deforms the outer shape. The protective member according to claim 1 .
3. the deformation portion is formed by a fold that allows a portion of the protection body to be folded, The folds include at least one of an extension-side fold that folds in an extension direction of the electric wire and a cross-side fold that folds in a cross direction that crosses the extension direction. The protective member according to claim 2 .
4. a ring-shaped fastener for fastening the protection body to the exposed wire portion; The protection body is provided with a mounting portion for mounting the fixing device. The protective member according to claim 2 .
5. the deformation portion is formed by a fold that allows a portion of the protection body to be folded, The fold includes at least one of an extension-side fold that folds in an extension direction in which the electric wire extends and a cross-side fold that folds in a cross direction that crosses the extension direction, A plurality of the cross side folds are provided, A plurality of the attachment portions are provided, and the attachment portions are provided on the outer side of the crossing side fold. The protective member according to claim 4 .
6. The fixed portion side is a base end side, and the side opposite to the base end side is a tip end side, A plurality of the electric wires are provided, bundled together, and sheathed with the sheathing material, Two mounting portions provided at a predetermined interval in the crossing direction are defined as a mounting portion set, A plurality of the mounting portion sets are provided, and the intervals between the mounting portions in the mounting portion sets are: The width is set to be narrower from the distal end side toward the proximal end side. The protective member according to claim 5 .
7. The fixed portion side is a base end side, and the side opposite to the base end side is a tip end side, A plurality of the electric wires are provided, bundled together, and sheathed with the sheathing material, The end portion on the distal end side of the protection body is formed to be concave toward the proximal end side. The protective member according to claim 2 .
8. The fixing portion is formed in a plate shape and is provided with a linear fixing portion side deformation portion that deforms the outer shape. The protective member according to claim 2 .
9. The fixed portion-side deformation portion is a cut line that allows a part of the deformed portion to be cut off. The protective member according to claim 8 .
10. An electric wire having an electric member at an end portion thereof to be fixed to a fixed location, an outer casing covering a predetermined position from the electric member, and an electric wire exposed portion where the electric wire is exposed between the electric member and the outer casing, Protected by the protective member according to any one of claims 1 to 9 Wire harness.
Citation Information
Patent Citations
Sheath material, sheath material connected body, wiring harness, and manufacturing method of wiring harness
JP2024005366A