Wire fixing member and wire harness

Abstract

To provide an electric wire fixing member and a wire harness which can improve the versatility.SOLUTION: An electric wire fixing member 12 includes: a fixing member body 12a having a holding member 20 for holding an electric member and an insertion hole 31 in which a fixation target part 13 is inserted; and an insertion member 12b as a separate member from the fixing member body 12a, the insertion member and a fixing target unit 13 being inserted in an insertion hole 31 and pressing the fixation target part 13 against an inner surface 31a of the insertion hole 31.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a wire fixing member and a wire harness. [Background technology]

[0002] For example, Patent Document 1 describes an electric wire fixing member that is fixed to a plate-shaped bracket provided on a vehicle. The electric wire fixing member includes a holding portion that holds an electric wire member and a fixing portion that is fixed to the plate-shaped bracket. The fixing portion has an insertion hole into which the bracket is inserted. A locking portion that hooks onto the bracket to prevent the bracket from slipping out of the insertion hole is provided inside the insertion hole. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-110133 Summary of the Invention [Problem to be solved by the invention]

[0004] The thickness of the brackets in vehicles is set to various thicknesses depending on the weight of the electric wire member and other factors in order to ensure strength. In the electric wire fixing member described above, the size of the insertion hole must be designed to match the thickness of the bracket. For example, consider a case where an electric wire fixing member suitable for a first bracket is fixed to a second bracket that is thinner than the first bracket. In this case, a large gap occurs between the insertion hole of the electric wire fixing member and the second bracket, which could cause rattle or even the electric wire fixing member to fall off. Therefore, it was necessary to prepare a variety of electric wire fixing members according to the thickness of the bracket.

[0005] An object of the present disclosure is to provide a wire fixing member and a wire harness that enable improved versatility. [Means for solving the problem]

[0006] The wire fixing member of the present disclosure is a wire fixing member for fixing a wire member to a plate-shaped fixed portion, and includes a fixing member main body having a holding portion that holds the wire member and an insertion hole into which the fixed portion is inserted, and an insertion member that is separate from the fixing member main body and is inserted into the insertion hole together with the fixed portion and presses the fixed portion against the inner surface of the insertion hole. [Effects of the Invention]

[0007] The wire fixing member and the wire harness of the present disclosure can improve versatility. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is an exploded perspective view showing a wire harness according to an embodiment. [Figure 2] FIG. 2 is a plan view of the wire harness of the same configuration. [Figure 3] FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. [Figure 4] FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. [Figure 5] FIG. 5 is a plan view of the wire harness in the modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Description of the embodiments of the present disclosure] First, embodiments of the present disclosure will be listed and described. The electric wire fixing member of the present disclosure includes: [1] An electric wire fixing member for fixing an electric wire member to a plate-shaped fixed portion, comprising: a fixing member main body having a holding portion for holding the electric wire member and an insertion hole into which the fixed portion is inserted; and an insertion member that is separate from the fixing member main body and is inserted into the insertion hole together with the fixed portion and presses the fixed portion against the inner surface of the insertion hole.

[0010] With this configuration, the fixed portion is pressed against the inner surface of the insertion hole by the insertion member, thereby suppressing rattle between the insertion hole and the fixed portion. Furthermore, by changing the size of the insertion member depending on the thickness of the fixed portion, it becomes possible to use a single type of fixing member body to accommodate a variety of fixed portions with different thicknesses. In other words, simply changing the design of the insertion member can accommodate changes in the thickness of the fixed portion. As a result, it is possible to improve the versatility of the wire fixing member.

[0011] [2] In the above [1], the fixing member main body has an elastic piece inside the insertion hole, and the elastic piece has a locking portion that hooks onto the fixed portion to prevent the fixed portion from slipping out of the insertion hole, and the insertion member and the elastic piece may be provided on both sides of the fixed portion in the plate thickness direction.

[0012] This configuration makes it possible to prevent the insertion member from interfering with the elastic piece inside the insertion hole, thereby minimizing the effect of the insertion member on the engagement between the locking portion of the elastic piece and the fixed portion.

[0013] [3] In the above [1] or [2], the insert member may have an insert member body and a reinforcing rib protruding from the insert member body. According to this configuration, the reinforcing ribs can improve the rigidity of the insert member. Also, by ensuring the rigidity with the reinforcing ribs, the insert member body can be made thinner.

[0014] [4] In the above [3], the insertion member main body may have a first side surface that contacts the fixed portion and a second side surface behind the first side surface, and the reinforcing rib may be provided only on the second side surface out of the first side surface and the second side surface.

[0015] According to this configuration, since no reinforcing rib is provided on the first side surface of the insertion member main body, it is possible to increase the contact area between the first side surface and the fixed portion. [5] In the above [3] or [4], the reinforcing rib may be provided in plurality.

[0016] According to this configuration, the rigidity of the insertion member can be further improved by the plurality of reinforcing ribs. [6] A wire harness according to the present disclosure includes the wire fixing member according to any one of [1] to [5] above, and a wire member held by the wire fixing member.

[0017] This configuration can achieve the same effects as the above-described electric wire fixing member. [Details of the embodiments of the present disclosure] Specific examples of the wire fixing member and wire harness of the present disclosure will be described below with reference to the drawings. In each drawing, for the sake of convenience, some of the configuration may be exaggerated or simplified. Furthermore, the dimensional ratios of each part may differ between drawings. Furthermore, in this specification, "parallel" and "perpendicular" do not only refer to strictly parallel or perpendicular, but also include roughly parallel or perpendicular within the scope of the action and effect of this embodiment.

[0018] As shown in FIG. 1, a wire harness 10 of this embodiment is provided in a vehicle such as an automobile. The wire harness 10 includes an electric wire member 11 and an electric wire fixing member 12. The electric wire fixing member 12 is a component for fixing to a plate-shaped fixed portion 13 provided in the vehicle. The fixed portion 13 is, for example, a metal plate-shaped bracket. The electric wire member 11 electrically connects two or more pieces of in-vehicle equipment. The electric wire member 11 includes, for example, an electric wire and an exterior member that covers the outer periphery of the electric wire.

[0019] (electric wire fixing member 12) The electric wire fixing member 12 includes a fixing member main body 12a and an inserting member 12b that is separate from the fixing member main body 12a. The fixing member main body 12a and the inserting member 12b are each formed of, for example, synthetic resin.

[0020] As shown in FIGS. 1 and 2, the fixing member main body 12a has a holding portion 20 that holds the electric wire member 11, and a fixing portion 30 that is fixed to the fixed portion 13. The holding portion 20 has a ring shape when viewed in the longitudinal direction of the electric wire member 11. The holding portion 20 surrounds the outer periphery of the electric wire member 11. As a result, the electric wire member 11 is held by the holding portion 20. The holding portion 20 has, for example, a protrusion 21 protruding from the inner circumferential surface of the holding portion 20. The protrusion 21 is configured to hook onto the electric wire member 11 in the longitudinal direction. By the protrusion 21 hooking onto the electric wire member 11 in the longitudinal direction, relative positional deviation between the electric wire member 11 and the electric wire fixing member 12 in the longitudinal direction is suppressed. Note that if the exterior member of the electric wire member 11 is, for example, a corrugated tube, the protrusion 21 fits into a recess in the outer circumferential surface of the corrugated tube.

[0021] (Fixed part 30) 3, the fixing part 30 has an insertion hole 31 into which the fixed part 13 is inserted along the insertion direction D1, and an elastic piece 32 located inside the insertion hole 31. The insertion hole 31, for example, penetrates a base part 33 of the fixing part 30 along the insertion direction D1. The elastic piece 32, for example, extends from the base part 33 of the fixing part 30 along the insertion direction D1. The elastic piece 32 is configured to bend around a base end part 32a connected to the base part 33 as a fulcrum. In other words, the elastic piece 32 is configured to bend so that its tip end part 32b is displaced substantially along a direction perpendicular to the insertion direction D1.

[0022] The elastic piece 32 has a main body portion 34 and locking portions 35 that respectively protrude from the main body portion 34. The main body portion 34 extends from the base portion 33 along the insertion direction D1. The locking portions 35 protrude from the main body portion 34 in a direction intersecting with the insertion direction D1.

[0023] The plate-shaped fixed portion 13 has a first main surface 13x and a second main surface 13y that are parallel to each other. The fixed portion 13 has, for example, a locking hole 14 into which the locking portion 35 is hooked. The locking hole 14 is, for example, a through-hole that penetrates the fixed portion 13 from the first main surface 13x to the second main surface 13y.

[0024] With the fixed part 13 attached to the insertion hole 31, the main body 34 of the elastic piece 32 is in contact with the first main surface 13x of the fixed part 13. The locking part 35 of the elastic piece 32 is inserted into the locking hole 14 of the fixed part 13. The edge of the locking hole 14 is caught by the locking part 35 inserted into the locking hole 14 in the direction opposite to the insertion direction D1. This catch prevents the fixed part 13 from slipping out of the insertion hole 31.

[0025] The fixing member main body 12a has a structure divided into two parts, a first part 41 and a second part 42, from the holding part 20 to the fixing part 30, for example. The first part 41 and the second part 42 are connected to each other via a hinge part 43. The first part 41, the second part 42, and the hinge part 43 are integrally formed. The second part 42 is rotatable relative to the first part 41 around the hinge part 43. The hinge part 43 is provided on the holding part 20, for example.

[0026] The second part 42 has a hook part 45 that is engaged with a lock part 44 provided on the first part 41. When the hook part 45 is engaged with the lock part 44, the first part 41 and the second part 42 are maintained in a closed state.

[0027] The fixing portion 30 of the fixing member main body 12a is composed of a part of the first portion 41 and a part of the second portion 42. The base portion 33 and the elastic piece 32 of the fixing portion 30 are, for example, parts of the first portion 41. The insertion hole 31 is formed in the fixing portion 30 from the first portion 41 to the second portion 42.

[0028] (insertion member 12b) 1 and 2, the insertion member 12b is a component that is inserted into the insertion hole 31 together with the fixed portion 13. The insertion member 12b is inserted into the insertion hole 31 along the insertion direction D1.

[0029] 3, inside the insertion hole 31, the insertion member 12b is arranged so as to be in contact with the second main surface 13y of the fixed portion 13. That is, the insertion member 12b is arranged on the opposite side of the fixed portion 13 from the elastic piece 32 which is in contact with the first main surface 13x of the fixed portion 13. In other words, the insertion member 12b and the elastic piece 32 are provided on both sides of the fixed portion 13 in the plate thickness direction.

[0030] 2 and 3, the insert member 12b has an insert member body 51 and reinforcing ribs 52 protruding from the insert member body 51. The insert member body 51 has, for example, a substantially rectangular parallelepiped shape. The insert member body 51 has a thickness direction D2 perpendicular to the insertion direction D1. The insert member body 51 also has a width direction D3 perpendicular to both the insertion direction D1 and the thickness direction D2 (see FIG. 2).

[0031] The insertion member main body 51 has a first side surface 53 that contacts the second main surface 13y of the fixed portion 13, and a second side surface 54 on the back side of the first side surface 53. The first side surface 53 and the second side surface 54 are, for example, planar surfaces that are parallel to each other. Each of the first side surface 53 and the second side surface 54 is, for example, perpendicular to the thickness direction D2.

[0032] (reinforcing rib 52) As shown in FIG. 2, for example, a plurality of reinforcing ribs 52 are provided. Each reinforcing rib 52 protrudes from the second side surface 54 of the insertion member main body 51 along the thickness direction D2. Of the first side surface 53 and the second side surface 54, each reinforcing rib 52 is provided only on the second side surface 54. For example, the reinforcing ribs 52 are provided at both ends of the insertion member main body 51 in the width direction D3. For example, each reinforcing rib 52 extends linearly in a direction along the insertion direction D1. Furthermore, for example, each reinforcing rib 52 is formed from one end to the other end of the insertion member main body 51 in the direction along the insertion direction D1.

[0033] The insertion hole 31 has recesses 36 recessed in the thickness direction D2. The number of recesses 36 provided is the same as the number of reinforcing ribs 52 of the insertion member 12b. That is, in this embodiment, there are two recesses 36, and each recess 36 extends linearly, for example, along the insertion direction D1. Furthermore, the recesses 36 are provided, for example, at both ends of the insertion hole 31 in the width direction D3. Each reinforcing rib 52 of the insertion member 12b fits into each recess 36.

[0034] As shown in FIG. 4, a fitting protrusion 55 is provided on a side surface of the insertion member 12b in the width direction D3. A fitting recess 37 into which the fitting protrusion 55 fits is provided on a side surface of the insertion hole 31 in the width direction D3. The fitting protrusion 55 fits into the fitting recess 37, making it difficult for the insertion member 12b to come out of the insertion hole 31. The fitting protrusion 55 fits into the fitting recess 37, thereby positioning the insertion member 12b in the insertion direction D1. The fitting protrusion 55 is provided, for example, on each of both side surfaces of the insertion member 12b in the width direction D3. The fitting recess 37 is provided, for example, on each of both side surfaces of the insertion hole 31 in the width direction D3. Each fitting protrusion 55 fits into each fitting recess 37.

[0035] FIG. 3 shows a state in which the insertion member 12b is in the proper assembly position along the insertion direction D1. The proper assembly position of the insertion member 12b is a position in which the insertion member 12b is positioned along the insertion direction D1 by the engagement between the engagement convex portion 55 and the engagement concave portion 37. As shown in the figure, the distance from the entrance end 31b of the insertion hole 31 to the lower end 51a of the insertion member main body 51 along the insertion direction D1 is shorter than the distance from the entrance end 31b of the insertion hole 31 to the locking portion 35. Therefore, in the thickness direction of the fixed portion 13, the insertion member main body 51 of the insertion member 12b is configured not to face the locking portion 35. This prevents the insertion member main body 51 from interfering with the locking portion 35.

[0036] The length of the insertion member main body 51 in the direction along the insertion direction D1 is set to, for example, at least half the length of the portion of the fixed portion 13 that is inserted into the insertion hole 31. The length of the portion of the fixed portion 13 that is inserted into the insertion hole 31 is the length from the entrance end 31b of the insertion hole 31 to the tip 13a of the fixed portion 13 in the insertion direction D1. This allows the insertion member main body 51 to stably hold the fixed portion 13.

[0037] (Action of this embodiment) The insertion member 12b is, for example, press-fitted into the insertion hole 31 into which the fixed portion 13 has been previously inserted. As a result, the first side surface 53 of the insertion member body 51 comes into contact with the second main surface 13y of the fixed portion 13 inside the insertion hole 31. Then, the fixed portion 13 receives stress from the insertion member 12b, and at least a part of the first main surface 13x of the fixed portion 13 is pressed against the inner surface 31a of the insertion hole 31. As a result, rattle between the fixed portion 13 and the insertion hole 31 is suppressed.

[0038] In the electric wire fixing member 12 of this embodiment, the dimension of the inserting member body 51 in the thickness direction D2 can be changed according to the plate thickness of the fixed portion 13, so that one type of fixing member body 12a can be adapted to various types of fixed portions 13 with different plate thicknesses. Therefore, it is possible to accommodate changes in the plate thickness of the fixed portion 13 simply by changing the design of the inserting member 12b.

[0039] (Effects of this embodiment) (1) The insertion member 12b, which is separate from the fixing member main body 12a, is inserted into the insertion hole 31 together with the fixed portion 13 and presses the fixed portion 13 against the inner surface 31a of the insertion hole 31. With this configuration, the fixed portion 13 is pressed against the inner surface 31a of the insertion hole 31 by the insertion member 12b, thereby suppressing rattle between the insertion hole 31 and the fixed portion 13. Furthermore, by changing the size of the insertion member 12b according to the plate thickness of the fixed portion 13, it becomes possible to use one type of fixing member main body 12a to accommodate various types of fixed portions 13 with different plate thicknesses. In other words, it is possible to accommodate changes in the plate thickness of the fixed portion 13 simply by changing the design of the insertion member 12b. As a result, it is possible to improve the versatility of the wire fixing member 12.

[0040] (2) The fixing member main body 12a has an elastic piece 32 inside the insertion hole 31. The elastic piece 32 has a locking portion 35 that hooks onto the fixed portion 13 to prevent the fixed portion 13 from slipping out of the insertion hole 31. The insertion member 12b and the elastic piece 32 are provided on both sides of the fixed portion 13 in the plate thickness direction. This configuration makes it possible to configure the insertion member 12b not to interfere with the elastic piece 32 inside the insertion hole 31. Therefore, it is possible to minimize the effect that the insertion member 12b has on the hooking of the locking portion 35 of the elastic piece 32 onto the fixed portion 13.

[0041] (3) The insert member 12b has an insert member body 51 and a reinforcing rib 52 protruding from the insert member body 51. With this configuration, the reinforcing rib 52 can improve the rigidity of the insert member 12b. Furthermore, by ensuring the rigidity with the reinforcing rib 52, the insert member body 51 can be made thinner.

[0042] (4) The inserting member main body 51 has a first side surface 53 that contacts the fixed portion 13 and a second side surface 54 on the back side of the first side surface 53. Of the first side surface 53 and the second side surface 54, the reinforcing rib 52 is provided only on the second side surface 54. With this configuration, the reinforcing rib 52 is not provided on the first side surface 53 of the inserting member main body 51, so it is possible to increase the contact area between the first side surface 53 and the fixed portion 13.

[0043] (5) A plurality of reinforcing ribs 52 are provided. According to this configuration, the plurality of reinforcing ribs 52 can further improve the rigidity of the insert member 12b. (6) The insertion member 12b is configured not to face the locking portion 35 in the plate thickness direction of the fixed portion 13. This prevents the insertion member main body 51 from interfering with the locking portion 35. As a result, it is possible to further reduce the influence of the insertion member 12b on the engagement between the locking portion 35 and the fixed portion 13.

[0044] (Example of change) This embodiment can be modified as follows: This embodiment and the following modifications can be combined and implemented within the scope of technical compatibility.

[0045] The insert member 12b may be provided with only one reinforcing rib 52, or three or more reinforcing ribs 52. Furthermore, each reinforcing rib 52 may be provided at a position other than both ends of the insert member body 51 in the width direction D3.

[0046] The configuration of the reinforcing rib 52 of the insert member 12b can be changed, for example, as shown in FIG. 5. In the example shown in FIG. 5, the insert member 12b has one reinforcing rib 61 protruding from the insert member main body 51. The reinforcing rib 61 protrudes from the second side surface 54 of the insert member main body 51 along the thickness direction D2. Of the first side surface 53 and the second side surface 54, the reinforcing rib 61 is provided only on the second side surface 54. The reinforcing rib 61 is provided, for example, in the center of the insert member main body 51 in the width direction D3. The reinforcing rib 61 extends linearly, for example, in the insertion direction D1. The reinforcing rib 61 is formed, for example, from one end to the other end of the insert member main body 51 in the insertion direction D1. In addition, only one recess 36 into which the reinforcing rib 61 fits is provided in the insertion hole 31, at a position corresponding to the reinforcing rib 61. That is, in the example shown in FIG. 5, the recess 36 is provided in the center of the insertion hole 31 in the width direction D3. Even with this configuration, it is possible to improve the rigidity of the insert member 12b by the reinforcing ribs 61. Furthermore, by ensuring the rigidity by the reinforcing ribs 61, it is possible to make the insert member main body 51 thinner.

[0047] The distance from the entrance end 31b of the insertion hole 31 to the lower end 51a of the insertion member main body 51 in the direction along the insertion direction D1 may be set to be equal to the distance from the entrance end 31b of the insertion hole 31 to the locking portion 35. Alternatively, the distance from the entrance end 31b of the insertion hole 31 to the lower end 51a of the insertion member main body 51 in the direction along the insertion direction D1 may be set to be longer than the distance from the entrance end 31b of the insertion hole 31 to the locking portion 35. In other words, the insertion member main body 51 of the insertion member 12b may be configured to face the locking portion 35 in the plate thickness direction of the fixed portion 13.

[0048] In the insert member 12b, the reinforcing ribs 52 may be provided only on the first side surface 53 of the insert member body 51. Alternatively, the reinforcing ribs 52 may be provided on both the first side surface 53 and the second side surface 54 of the insert member body 51.

[0049] In the insert member 12b of the above embodiment, the reinforcing rib 52 may be omitted. The locking hole 14 of the fixed portion 13 may be a recess formed in the first main surface 13x. That is, the locking hole 14 may not penetrate from the first main surface 13x to the second main surface 13y of the fixed portion 13.

[0050] The locking portion 35 of the elastic piece 32 may be a recess or a hole that can be hooked onto a protrusion provided on the fixed portion 13 . The configuration of the holding portion 20 of the electric wire fixing member 12, such as its shape, is not limited to the above embodiment. For example, the holding portion 20 may be an extending piece extending in the longitudinal direction of the electric wire member 11, and the electric wire member 11 may be fixed to the extending piece by wrapping tape or the like.

[0051] In the fixing member main body 12a, the fixing portion 30 including the insertion hole 31 may be formed in only one of the first portion 41 and the second portion . Although the fixed portion 13 in the above embodiment is flat, it is not limited to this. For example, the end of the fixed portion 13 in the width direction D3 may be bent at a substantially right angle.

[0052] The embodiments and modifications disclosed herein are illustrative in all respects, and the present invention is not limited to these examples. That is, the scope of the present invention is defined by the claims, and it is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0053] 10 Wire harness 11 Electrical wiring components 12 Wire fixing member 12a Fixing member body 12b Insertion member 13 Fixed part 13a Tip 13x First main surface 13y Second principal surface 14 Locking hole 20 Holding part 21 Protrusion 30 Fixed part 31 Insertion hole 31a Inner surface 31b Inlet end 32 Elastic piece 32a Proximal end 32b Tip 33 Base 34 Main body 35 Locking part 36 Recess 37 Fitting recess 41 Part 1 42 Part 2 43 Hinge part 44 Lock Section 45 Hook part 51 Insertion member body 51a Bottom end 52 Reinforcing rib 53 First aspect 54 Second aspect 55 mating protrusion 61 Reinforcing rib D1 Insertion direction D2 thickness direction D3 Width direction

Claims

1. An electric wire fixing member for fixing an electric wire member to a plate-shaped fixed portion, a fixing member body having a holding portion that holds the electric wire member and an insertion hole into which the fixed portion is inserted; an insertion member that is separate from the fixing member main body and is inserted into the insertion hole together with the fixed portion to press the fixed portion against an inner surface of the insertion hole; Wire fixing component.

2. the fixing member body has an elastic piece inside the insertion hole, the elastic piece has a locking portion that is hooked onto the fixed portion to prevent the fixed portion from slipping out of the insertion hole, The insertion member and the elastic piece are provided on both sides of the fixed portion in the plate thickness direction. The electric wire fixing member according to claim 1 .

3. The insert member has an insert member body and a reinforcing rib protruding from the insert member body. The electric wire fixing member according to claim 1 .

4. the insertion member body has a first side surface that contacts the fixed portion and a second side surface on the back side of the first side surface, The reinforcing rib is provided only on the second side surface out of the first side surface and the second side surface. The electric wire fixing member according to claim 3 .

5. The reinforcing rib is provided in plurality. The electric wire fixing member according to claim 3 .

6. The electric wire fixing member according to any one of claims 1 to 5, An electric wire member held by the electric wire fixing member, Wire harness.

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