Fixing device and wire harness

Abstract

To provide a fixing device and a wire harness capable of smoothly performing fixing work.SOLUTION: The fixing device 1 includes a cylindrical part 11 that covers the outer periphery of the electric wire part 2 and is attached to the electric wire part 2, and a moving part 12 that is assembled to the cylindrical part 11 and is held so as to be movable toward and away from the outer periphery of the electric wire part 2. The tubular portion 11 forms a tubular portion insertion hole 114 through which the rod-shaped member 9 extending from the fixed object is inserted, the moving portion 12 forms a moving portion insertion hole 123 provided continuously with the tubular portion communication hole 114, and the moving portion 12 is configured to move so as to press the outer periphery of the electric wire portion 2 in a state where the rod-shaped member 9 extending from the fixed object is inserted into the tubular portion insertion hole 114 and the moving portion insertion hole 123, and restrict relative movement between the electric wire portion 2 and the tubular portion 11.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a fixing device and a wire harness. [Background technology]

[0002] As a related art of a fixing device and a wire harness, for example, as described in Patent Document 1, a wire harness is known that includes electric wire members, a cylindrical exterior member that covers the outer periphery of the electric wire members, and a path restricting member that covers the outer periphery of the exterior member and restricts the wiring path of the electric wire members. This wire harness has a cylindrical fixing device (fixing member) attached to the outer periphery of the path restricting member. The fixing device is attached to a vehicle body and fixes the wire harness to the vehicle body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-060636 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-described fixing device and wire harness may be difficult to install. For example, once the fixing device is attached to the electric wire member, it is difficult to move the fixing device in the circumferential and longitudinal directions relative to the electric wire member, making it difficult to adjust the posture or position of the fixing device. Therefore, the above-described fixing device and wire harness may not allow smooth installation of the electric wire member.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a fixing device and a wire harness that allow for smooth fixing work. [Means for solving the problem]

[0006] In other words, the fixing device of the present invention comprises a tubular portion that covers the outer periphery of the electric wire portion and is attached to the electric wire portion, and a movable portion that is assembled to the tubular portion and held so as to be able to move toward and away from the outer periphery of the electric wire portion, the tubular portion forming a tubular portion insertion hole through which a rod-shaped member extending from an object to be fixed is inserted, the movable portion forming a movable portion insertion hole that is connected to the tubular portion insertion hole, and is configured to move so as to press against the outer periphery of the electric wire portion when the rod-shaped member is inserted into the tubular portion insertion hole and the moving portion insertion hole, thereby regulating the relative movement of the electric wire portion and the tubular portion. [Effects of the Invention]

[0007] According to the fixing device and the wire harness of the present invention, the fixing work can be performed smoothly. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a wire harness according to a first embodiment. [Figure 2] FIG. 2 is a perspective view showing the fixing device according to the first embodiment. [Figure 3] FIG. 3 is a cross-sectional view of the fixing device taken along line III-III in FIG. [Figure 4] FIG. 4 is a perspective view showing a state in which the cylindrical portion of the fixing device according to the first embodiment is opened. [Figure 5] FIG. 5 is an explanatory diagram of a fixing method for the wire harness and the fixing device according to the first embodiment. [Figure 6] FIG. 6 is an explanatory diagram of a fixing method for the wire harness and the fixing device according to the first embodiment. [Figure 7] FIG. 7 is a cross-sectional view showing a wire harness and a fixing device according to the second embodiment. [Figure 8] FIG. 8 is a cross-sectional view showing a wire harness and a fixing device according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to these embodiments. Furthermore, the components in the following embodiments include those that are easily replaceable by those skilled in the art, or those that are substantially the same.

[0010] [Embodiment] This embodiment relates to a fixing device and a wire harness. In the following description, of the first, second, and third directions that intersect with one another, the first direction is referred to as the "extension direction X," the second direction is referred to as the "width direction Y," and the third direction is referred to as the "height direction Z." Here, the extension direction X, width direction Y, and height direction Z are perpendicular to one another. The extension direction X corresponds to the extension direction of the electric wire portion. The width direction Y and height direction Z correspond to intersecting directions that intersect with the extension direction X. Furthermore, unless otherwise specified, each direction used in the following description represents a direction in which each portion is assembled to one another. Note that orthogonal here includes nearly perpendicular.

[0011] A fixing device and a wire harness according to a first embodiment will be described.

[0012] As shown in FIG. 1 , a fixing device 1 according to the first embodiment is a device for fixing an electric wire portion 2 to an object to be fixed. The object to be fixed is, for example, a vehicle body, a member or part attached to the vehicle body, or the like, and forms a rod-shaped member 9 such as a stud bolt. The fixing device 1 is mounted on, for example, a vehicle. The electric wire portion 2 has an electric wire 21, which is a conductive member. The electric wire 21 is, for example, a coated electric wire in which the outer periphery of a linear conductive member is covered with an insulating coating. The electric wire 21 may be, for example, configured as an electric wire bundle in which a plurality of coated electric wires are bundled together. Furthermore, the electric wire portion 2 is, for example, configured such that a corrugated tube 22 covers the electric wire 21, and a protector 23 and a straight tube 24 cover the corrugated tube 22. The corrugated tube 22 is a bellows-shaped tube. The protector 23 is a tubular member formed of a material having higher strength than the corrugated tube 22. The straight pipe 24 is a linearly extending pipe made of a material having higher strength than the corrugated pipe 22. For example, the protector 23 is attached to the end of the straight pipe 24 and attached to the outer periphery spanning the straight pipe 24 and the corrugated pipe 22.

[0013] The protector 23 is, for example, a cylindrical body divided into two parts in the circumferential direction, and is configured by axially attaching two members with an arc-shaped cross section so that they can rotate about an axis in the extension direction X. The term "arc-shaped" here includes a substantially arc-shaped shape. The protector 23 has an attachment portion 231. The attachment portion 231 is a cylindrical portion that occupies a part of the protector 23 in the extension direction X, and is a portion for attaching the fixing device 1. The attachment portion 231 is formed larger than the fixing device 1 in the extension direction X. Stoppers 232 are formed on both ends of the attachment portion 231. The stoppers 232 are portions that protrude from the outer periphery of the attachment portion 231 and limit the range of movement of the fixing device 1 attached to the attachment portion 231 in the extension direction X.

[0014] As shown in FIGS. 2 to 4, the fixing device 1 has a tubular portion 11 and a moving portion 12. The tubular portion 11 is a portion attached to the electric wire portion 2, has a tubular shape, and is attached so as to cover the outer periphery of the electric wire portion 2. For example, the tubular portion 11 is attached so as to cover the outer periphery of the protector 23 on the electric wire portion 2. The tubular portion 11 is configured, for example, by connecting a first arc portion 111 and a second arc portion 112 by a hinge portion 113. The first arc portion 111 and the second arc portion 112 are formed in a semicircular cross section, are rotatable about the hinge portion 113, and can be opened by moving in directions away from each other. The hinge portion 113 is a portion that connects the first arc portion 111 and the second arc portion 112 so as to be rotatable about an axis in the extension direction X. The hinge portion 113 may have a shaft that pivotally supports the first arc portion 111 and the second arc portion 112, but when the tubular portion 11 is formed by resin molding, the hinge portion 113 may be deformable so as to allow rotation of the first arc portion 111 and the second arc portion 112. The tubular portion 11 can be assembled to the electric wire portion 2 so as to cover the outer periphery of the electric wire portion 2 by opening the first arc portion 111 and the second arc portion 112.

[0015] A cylindrical portion insertion hole 114 is formed in the cylindrical portion 11. The cylindrical portion insertion hole 114 is a hole for inserting the rod-shaped member 9 of the fixed object, and is formed along a direction intersecting the movement direction of the moving portion 12. The cylindrical portion insertion hole 114 is formed, for example, in the tip portion 112A of the second arc portion 112, and is formed along the height direction Z. The tip portion 112A is a portion of the second arc portion 112 formed on the opposite side to the base end side connected to the hinge portion 113, and is formed to protrude in the radial direction. A tapered portion 114A is formed in the cylindrical portion insertion hole 114. The tapered portion 114A is formed at the end of the cylindrical portion insertion hole 114 on the moving portion 12 side, and is formed so that the hole diameter increases toward the end face.

[0016] The moving part 12 is a moving member assembled to the tubular part 11, and is held so as to be movable toward and away from the outer periphery of the electric wire part 2. For example, the moving part 12 moves in a direction intersecting the formation direction of the moving part insertion hole 123 to press the outer periphery of the electric wire part 2. For example, the moving part insertion hole 123 is formed along the height direction Z, and the moving part 12 moves along the width direction Y. Details of the moving part insertion hole 123 will be described later. For example, the moving part 12 is housed in the first arc part 111, and is assembled by being sandwiched between the first arc part 111 and the second arc part 112. The moving part 12 is housed in an accommodation space 111A formed in the first arc part 111. The accommodation space 111A is formed by recessing the inner periphery of the end part extending linearly at the tip side of the first arc part 111. The accommodation space 111A is formed larger than the moving part 12 and accommodates the moving part 12 so that it can move in the width direction Y. The moving part 12 has a main body part 121 and an arc part 122. The main body part 121 is a flat plate-shaped part. The arc part 122 has an arc surface 122A formed at the end part on the main body part 121 side and formed to be continuous with the inner circumferential surface of the first arc part 111. The arc surface 122A is a surface that comes into contact with the outer periphery of the electric wire part 2.

[0017] As shown in FIG. 3 , the moving section 12 has a moving section insertion hole 123 formed along a direction intersecting the moving direction. The moving section insertion hole 123 is a hole for inserting a rod-shaped member 9 of a fixed object. For example, the moving section insertion hole 123 is formed along the height direction Z and is formed so as to penetrate the main body section 121 in the height direction Z. The center position C2 of the moving section insertion hole 123 is shifted from the center position C1 of the tubular section insertion hole 114 when the rod-shaped member 9 is not inserted. In other words, when the rod-shaped member 9 is not inserted, the moving section 12 does not move toward the electric wire section 2, and the center position C2 of the moving section insertion hole 123 and the center position C1 of the tubular section insertion hole 114 are different. With the rod-shaped member 9 inserted through the tubular portion insertion hole 114 and the moving portion insertion hole 123, the moving portion 12 moves to press the outer periphery of the electric wire portion 2, thereby restricting movement of the tubular portion 11 relative to the electric wire portion 2. In other words, as the rod-shaped member 9 is inserted through the moving portion insertion hole 123 and the tubular portion insertion hole 114 in that order, the moving portion 12 moves toward the electric wire portion 2 and presses the electric wire portion 2. In this way, the moving portion 12 restricts movement of the tubular portion 11 in the circumferential direction and the extension direction X relative to the electric wire portion 2.

[0018] As shown in Fig. 4, a locking portion 111B is formed at the end of the first arc portion 111, and a locked portion 112B is formed at the tip 112A of the second arc portion 112. The locking portion 111B and the locked portion 121B are portions that engage with each other when the first arc portion 111 and the second arc portion 112 are closed, and lock the first arc portion 111 and the second arc portion 112 so that they do not open. The locking portion 111B is formed in the shape of an arm extending toward the locked portion 121B. The locked portion 121B has a groove or hole formed therein through which the locking portion 111B is inserted and engaged.

[0019] Next, the fixing device 1 and the method for fixing the wire harness WH according to this embodiment will be described.

[0020] To fix the fixing device 1 and the wire harness WH to the object to be fixed, first, a step of attaching the fixing device 1 to the electric wire portion 2 is performed. As shown in Fig. 1 , the electric wire portion 2 has, for example, an electric wire 21 covered with a corrugated tube 22, and a protector 23 covered with the corrugated tube 22. For example, the fixing device 1 is attached to an attachment portion 231 of the protector 23 of the electric wire portion 2.

[0021] As shown in Fig. 4, the fixing device 1 is placed on the outer periphery of the attachment portion 231 of the protector 23 with the tubular portion 11 open. Then, by closing the tubular portion 11, the fixing device 1 is attached so that the tubular portion 11 covers the outer periphery of the attachment portion 231 of the electric wire portion 2, as shown in Fig. 1. At this time, the rod-shaped member 9 of the object to be fixed is not inserted through the fixing device 1, and the moving portion 12 is movable relative to the tubular portion 11. In other words, the fixing device 1 is movable in the circumferential direction and the extension direction X relative to the electric wire portion 2.

[0022] The wire harness WH including the fixing device 1 is then routed at a predetermined position in the vehicle and fixed to a target object such as the vehicle body. The process of fixing the fixing device 1 and the wire harness WH is performed by inserting a rod-shaped member 9 extending from the target object into the fixing device 1. At this time, the fixing device 1 is movable in the circumferential direction and in the extension direction X relative to the electric wire portion 2, so that the posture and position of the tubular portion 11 can be adjusted. Therefore, the position of the movable portion insertion hole 123 can be easily adjusted relative to the rod-shaped member 9, and the operation of inserting the rod-shaped member 9 into the fixing device 1 can be performed smoothly and easily.

[0023] 5, the rod-shaped member 9 is inserted into the moving portion insertion hole 123 of the moving portion 12. Then, the rod-shaped member 9 passes through the moving portion insertion hole 123 and enters the tubular portion insertion hole 114. At this time, a tapered portion 114A is formed in the tubular portion insertion hole 114, so that the rod-shaped member 9 enters the tubular portion insertion hole 114 smoothly.

[0024] As shown in FIG. 6 , when the rod-shaped member 9 is inserted into the tubular portion insertion hole 114, the moving portion 12 moves toward the electric wire portion 2. That is, since the rod-shaped member 9 is inserted into the tubular portion insertion hole 114 while passing through the moving portion 12, the moving portion 12 moves along the width direction Y, and the arcuate surface 122A of the moving portion 12 is pressed against the outer periphery of the attachment portion 231 of the electric wire portion 2. That is, as the rod-shaped member 9 is inserted, the moving portion 12 moves in the width direction Y, and the pressing force of the moving portion 12 restricts relative movement between the fixing device 1 and the electric wire portion 2. The rod-shaped member 9 is press-fitted into the tubular portion insertion hole 114, and is thereby held so as not to easily come off the fixing device 1. As a result, the fixing device 1 and the wire harness WH are fixed to the object to be fixed.

[0025] As described above, in the fixing device 1 and the wire harness WH according to this embodiment, when the rod-shaped member 9 of the object to be fixed is inserted, the moving portion 12 presses the electric wire portion 2, thereby restricting the relative movement between the fixing device 1 and the electric wire portion 2. That is, in the fixing device 1 and the wire harness WH according to this embodiment, when the rod-shaped member 9 is not inserted, the moving portion 12 does not press the electric wire portion 2, and allows the relative movement between the fixing device 1 and the electric wire portion 2. Therefore, when fixing the fixing device 1 and the wire harness WH according to this embodiment to the object to be fixed, the posture and position of the fixing device 1 can be easily adjusted, and the fixing operation can be performed smoothly.

[0026] Furthermore, the fixing device 1 and the wire harness WH according to this embodiment can smoothly perform the fixing work even if the size of the tubular portion 11 is changed according to the thickness of the electric wire 21. Therefore, it has high versatility according to the object to be fixed, such as a vehicle.

[0027] Next, a fixing device and a wire harness according to a second embodiment will be described.

[0028] In the fixing device 1 and the wire harness WH according to the first embodiment described above, the moving part 12 moves in a direction intersecting the formation direction of the moving part insertion hole 123 to press the outer periphery of the electric wire part 2, but in the fixing device 1A and the wire harness WHA according to the second embodiment, the moving part 12 moves along the formation direction of the moving part insertion hole 123 to press the outer periphery of the electric wire part 2. For example, the moving part insertion hole 123 is formed along the height direction Z, and the moving part 12 moves along the height direction Z.

[0029] 7, the moving part 12 is accommodated in a storage space 111A formed in the tubular part 11 and is held so as to be movable along the height direction Z. For example, the storage space 111A is formed to be the same size as the moving part 12 in the extension direction X and width direction Y, and is formed to be larger than the moving part 12 in the height direction Z. Therefore, the storage space 111A restricts the movement of the moving part 12 in the extension direction X and width direction Y, but allows the movement of the moving part 12 in the height direction Z. Note that the same size includes approximately the same size.

[0030] The moving portion 12 is held so that the center position of the moving portion insertion hole 123 is the same as the center position of the tubular portion insertion hole 114 in the extension direction X and the width direction Y. Note that the same position includes an almost same position.

[0031] As shown in Fig. 8, the wire harness WHA including the fixing device 1A is routed at a predetermined position in a vehicle and fixed to a target object such as a vehicle body. The process of fixing the fixing device 1A and the wire harness WHA is performed by inserting a rod-shaped member 9 extending from the target object into the fixing device 1A. At this time, the fixing device 1A is movable in the circumferential direction and in the extending direction X relative to the electric wire portion 2, so that the posture and position of the tubular portion 11 can be adjusted. Therefore, the position of the movable portion insertion hole 123 can be easily adjusted relative to the rod-shaped member 9, and the operation of inserting the rod-shaped member 9 into the fixing device 1A can be performed smoothly and easily.

[0032] The fixing device 1A is inserted into the rod-shaped member 9, and the rod-shaped member 9 is inserted into the moving-part insertion hole 123 of the moving part 12. The rod-shaped member 9 then passes through the moving-part insertion hole 123 and enters the tubular part insertion hole 114. At this time, as the tubular part 11 approaches the object to be fixed, the tubular part 11 abuts against the moving part 12, and the moving part 12 is sandwiched between the tubular part 11 and the flange part 91 of the rod-shaped member 9. The arc surface 122A of the moving part 12 is pressed against the outer periphery of the mounting part 231. The flange part 91 is a portion that has an expanded diameter on the base end side of the rod-shaped member 9 and is formed larger than the moving-part insertion hole 123. As the rod-shaped member 9 is inserted, the moving part 12 moves in the height direction Z, and the pressure of the moving part 12 restricts the relative movement of the fixing device 1A and the electric wire part 2. The rod-shaped member 9 is held so as not to easily come off the fixing device 1A by being press-fitted into the cylindrical insertion hole 114. As a result, the fixing device 1A and the wire harness WHA are fixed to the object to be fixed.

[0033] As described above, in the fixing device 1A and the wire harness WHA according to the second embodiment, similarly to the fixing device 1 and the wire harness WH according to the first embodiment, when the rod-shaped member 9 of the object to be fixed is inserted, the moving portion 12 presses the electric wire portion 2 to restrict relative movement between the fixing device 1 and the electric wire portion 2. That is, in the fixing device 1A and the wire harness WHA according to the present embodiment, when the rod-shaped member 9 is not inserted, the moving portion 12 does not press the electric wire portion 2 and allows relative movement between the fixing device 1 and the electric wire portion 2. Therefore, when the fixing device 1A and the wire harness WHA according to the present embodiment are fixed to the object to be fixed, the posture and position of the fixing device 1A can be easily adjusted, and the fixing operation can be performed smoothly.

[0034] Furthermore, the fixing device 1A and the wire harness WHA according to this embodiment can smoothly perform the fixing work even if the size of the tubular portion 11 is changed according to the thickness of the electric wires 21. Therefore, the fixing device 1A and the wire harness WHA according to this embodiment have high versatility according to the object to be fixed, such as a vehicle.

[0035] Although the fixing device and the wire harness according to the embodiment have been described, the fixing device and the wire harness according to the present invention are not limited to the above-described embodiment, and various modifications are possible within the scope of the claims. The fixing device and the wire harness according to the present embodiment may be configured by appropriately combining the components of the embodiment and modified examples described above.

[0036] For example, although the fixing device and the wire harness according to the above-described embodiment are described as being mounted on a vehicle, they may also be used without being mounted on a vehicle. [Explanation of symbols]

[0037] 1, 1A: Fixing device 2: Wire section 9: Rod-shaped member 11:Cylinder part 12: Moving section 114: Cylinder insertion hole 123: Moving part insertion hole WH, WHA: Wire harness

Claims

1. a cylindrical portion that covers the outer periphery of the electric wire portion and is attached to the electric wire portion; a moving part that is assembled to the cylindrical part and is held so as to be movable toward and away from the outer periphery of the electric wire part, the cylindrical portion has a cylindrical portion insertion hole through which a rod-shaped member extending from the object to be fixed is inserted; the moving portion forms a moving portion insertion hole that is connected to the cylindrical portion insertion hole, and moves to press an outer periphery of the electric wire portion in a state where the rod-shaped member is inserted into the cylindrical portion insertion hole and the moving portion insertion hole, thereby restricting relative movement between the electric wire portion and the cylindrical portion. Fixation device.

2. the moving portion allows relative movement of the electric wire portion and the cylindrical portion in a state in which the rod-shaped member is not inserted through the cylindrical portion insertion hole and the moving portion insertion hole. The fixation device of claim 1 .

3. the moving portion moves in a direction intersecting a direction in which the moving portion insertion hole is formed to press an outer periphery of the electric wire portion; 3. The fixation device according to claim 1 or 2.

4. the moving portion moves along a direction in which the moving portion insertion hole is formed to press an outer periphery of the electric wire portion; 3. The fixation device according to claim 1 or 2.

5. an electric wire portion having a conductive member; a fixing device that fixes the electric wire portion to an object to be fixed, The fixing device comprises: a cylindrical portion that covers an outer periphery of the electric wire portion and is attached to the electric wire portion; a moving part that is assembled to the cylindrical part and is held so as to be movable toward and away from the outer periphery of the electric wire part, the cylindrical portion has a cylindrical portion insertion hole through which a rod-shaped member extending from the object to be fixed is inserted; the moving portion forms a moving portion insertion hole that is connected to the cylindrical portion insertion hole, and moves to press an outer periphery of the electric wire portion in a state where the rod-shaped member is inserted into the cylindrical portion insertion hole and the moving portion insertion hole, thereby restricting relative movement between the electric wire portion and the cylindrical portion. Wire harness.

Images