JP7539011B2 - Wire Harness - Google Patents

Description

The present invention relates to a wire harness.

Patent Document 1 discloses a temporary fixing structure for a wire harness. This temporary fixing structure for a wire harness temporarily fixes multiple points of a loop-wound electric wire member to each other using multiple clamps made of synthetic resin.

For example, when the electric wire member is double-wound, the first clamp is attached to the beginning of the first turn of the electric wire member. The second clamp is attached to the end of the second turn of the electric wire member.

Each clamp has a protrusion and a hole. The first clamp and the second clamp are temporarily fixed to each other by engaging the protrusion of the first clamp with the hole of the second clamp. This temporarily secures the electric wire member in a loop-shaped wound state.

With this type of temporary fastening structure, for example, when assembling an electric wire member to a vehicle body frame, the electric wire member can be wound in a loop shape and temporarily placed in a stable position on the target object. This makes it possible to prevent the electric wire member temporarily placed on the target object from shifting position or falling off when assembling the target object to the vehicle body frame.

JP 2008-37465 A

However, the temporary fastening structure of the wire harness disclosed in Patent Document 1 requires a process of attaching multiple clamps to multiple locations on the electric wire member. In addition, the need for multiple clamps increases the number of parts.

The wire harness for solving the above problem includes an electric wire member and a clamp for fixing the electric wire member to an attachment target, the clamp having a clamp body having a first fixing portion fixed to the electric wire member and a second fixing portion fixed to the attachment target, a hook portion capable of hooking onto the electric wire member, and a connecting portion for rotatably connecting the hook portion to the clamp body, the hook portion being configured to be movable between a first position where it can hook onto the electric wire member and a second position where it can hold the electric wire member by clamping the electric wire member together with the clamp body.

According to this configuration, with the first fixing portion of the clamp fixed to the electric wire member, the second fixing portion is fixed to the attachment target such as a vehicle body frame. In this state, by setting the hook portion to the first position, it becomes possible to hook the hook portion to the electric wire member. This allows the clamp to temporarily hold the other portion of the electric wire member in the longitudinal direction that is not fixed to the attachment target.

In addition, according to the above configuration, by placing the hook portion in the second position, it is possible to hold the electric wire member by clamping the electric wire member between the hook portion and the clamp body. Therefore, the electric wire member is held at two points by the first fixing portion and the hook portion. This allows the electric wire member to be stably held by the clamp.

Therefore, the electric wire members can be temporarily held together while suppressing an increase in the number of parts.
In the above wire harness, it is preferable that the clamp has an engagement structure for engaging the hanging portion with the clamp body when the hanging portion is in the second position.

With this configuration, the hook portion in the second position engages with the clamp body, eliminating the need for a separate member to hold the hook portion in the second position. This helps prevent an increase in the number of parts.

In the above wire harness, the engagement structure preferably has an engagement protrusion provided on one of the hook portion and the clamp body, and an engagement recess provided on the other of the hook portion and the clamp body, and the engagement protrusion is preferably configured to be able to engage with the engagement recess.

According to this configuration, the engagement structure can be easily realized by the engagement relationship between the engagement protrusions and the engagement recesses.
In the above wire harness, it is preferable that the first fixing portion is fixed to the electric wire member by being wrapped around the electric wire member with a tape.

According to this configuration, the configuration of the first fixing portion can be simplified.
In the above wire harness, the electric wire member preferably has a mark indicating a position where the hook portion is to be hooked.

According to this configuration, the position at which the hook portion hooks the electric wire member is prevented from varying depending on the worker, thereby enabling the electric wire members to be temporarily held together effectively.
In addition, the worker can easily visually grasp the position on the electric wire member where the hook portion is to be hooked, thereby improving the workability of temporarily holding the electric wire members together.

According to the present invention, it is possible to temporarily hold the electric wire members together while suppressing an increase in the number of parts.

FIG. 1 is a perspective view showing a wire harness according to an embodiment. FIG. 4 is a perspective view showing the clamp with the hook portion in a first position. FIG. 4 is a perspective view showing the wire harness in a state where the hook portion of the clamp is in a second position. FIG. 4 is a cross-sectional view showing the wire harness in a state where the hook portion of the clamp is in a second position. FIG. 5 is a cross-sectional view corresponding to FIG. 4 of a modified wire harness.

Hereinafter, one embodiment will be described with reference to FIGS.
As shown in FIG. 1, a wire harness 10 includes an electric wire member 11 and a clamp 12 that fixes the electric wire member 11 to a bracket 51 of a vehicle body frame 50 to which the electric wire member 11 is to be attached.

The electric wire member 11 electrically connects devices (not shown) to each other. Connectors (not shown) are provided on both ends of the electric wire member 11.
1 and 2, the clamp 12 has a clamp body 20, a hook portion 23, and a connecting portion 24. The clamp 12 is made of resin and is integrally formed.

As shown in FIG. 2, the clamp body 20 has a flat base portion 20A. Hereinafter, one side of the base portion 20A (the side facing the viewer in the figure) and the other side will be referred to as the first side and the second side, respectively.

The base portion 20A has a long first portion 20a and a second portion 20b that bends and extends from one end of the first portion 20a in the longitudinal direction. The longitudinal direction of the first portion 20a and the extending direction of the second portion 20b are perpendicular to each other. The length of the extending direction of the second portion 20b is shorter than the length of the first portion 20a in the longitudinal direction.

A first fixing portion 21 that is fixed to the electric wire member 11 is provided on the other end side of the first portion 20a in the longitudinal direction.
The first fixing portion 21 is fixed to the electric wire member 11 by wrapping a tape 40 around the electric wire member 11 together with the electric wire member 11 with the electric wire member 11 aligned along the first surface of the first portion 20a (see Figs. 1 and 3).

A second fixing part 22 that is fixed to the bracket 51 is provided on the second surface of the first part 20a. The second fixing part 22 has an insertion hole 22a that opens toward the base end side (the lower end side in the figure) and into which the bracket 51 is inserted. The second fixing part 22 is provided between the second part 20b and the first fixing part 21 in the longitudinal direction of the first part 20a.

The hook portion 23 has a plate portion 23a that extends along the extension direction of the second portion 20b (the vertical direction in the figure), and a curved portion 23b that is connected to the tip side (the upper side in the figure) of the plate portion 23a and can be hooked onto the electric wire member 11. The curved portion 23b has a U-shaped cross section.

The first fixing portion 21, the second fixing portion 22, and the hook portion 23 are arranged in sequence in the longitudinal direction of the first portion 20a, i.e., in the longitudinal direction of the portion of the electric wire member 11 where the clamp 12 is attached.

The connecting portion 24 is a hinge that rotatably connects the hook portion 23 to the second portion 20 b of the clamp body 20 .
The hook portion 23 is configured to be movable between a first position where it can be hooked onto the electric wire member 11 and a second position where it can hold the electric wire member 11 by clamping the electric wire member 11 together with the clamp body 20 .

As shown in FIGS. 1 and 2, when the hook portion 23 is in the first position, the plate portion 23a is located on the opposite side of the connecting portion 24 to the base portion 20A.
As shown in FIGS. 3 and 4, when the hook portion 23 is in the second position, the plate portion 23a is located on the same side of the connecting portion 24 as the base portion 20A.

The clamp 12 has an engagement structure 30 that engages the hook portion 23 with the clamp body 20 when the hook portion 23 is in the second position.
The engagement structure 30 has an engagement protrusion 31 provided on the hook portion 23 and an engagement recess 32 provided on the clamp body 20 .

The engaging protrusion 31 protrudes from the plate portion 23a of the hook portion 23. The tip of the engaging protrusion 31 is provided with a barbed locking portion 31a that is tapered and prevents the engaging protrusion 31 from slipping out of the engaging recess 32 (see Figure 4).

The engagement recess 32 is a hole that penetrates the second portion 20b in the plate thickness direction.
The engaging protrusion 31 is configured to be able to engage with the engaging recess 32 .
The electric wire member 11 has a mark 11a indicating the position at which the hook portion 23 is hooked. The mark 11a may be formed of tape or the like, or may be formed by coloring the insulating coating of the electric wire member 11.

Next, the operation of this embodiment will be described.
With the first fixing portion 21 of the clamp 12 fixed to the electric wire member 11, the second fixing portion 22 is fixed to the bracket 51 of the vehicle body frame 50. In this state, by moving the hook portion 23 to the first position, it becomes possible to hook the hook portion 23 to the electric wire member 11 (above, action 1).

In addition, by placing the hook portion 23 in the second position, it is possible to hold the electric wire member 11 by clamping the electric wire member 11 between the hook portion 23 and the clamp body 20. Therefore, the electric wire member 11 is held at two points by the first fixing portion 21 and the hook portion 23 (above, action 2).

Next, the effects of this embodiment will be described.
(1) The clamp 12 has a clamp body 20 having a first fixing portion 21 fixed to the electric wire member 11 and a second fixing portion 22 fixed to the bracket 51, a hook portion 23 capable of hooking onto the electric wire member 11, and a connecting portion 24 that rotatably connects the hook portion 23 to the clamp body 20. The hook portion 23 is configured to be movable between a first position where it can be hooked onto the electric wire member 11 and a second position where it can hold the electric wire member 11 by clamping the electric wire member 11 together with the clamp body 20.

With this configuration, by achieving the above-mentioned action 1, the other parts of the electric wire member 11 that are not fixed to the bracket 51 of the vehicle body frame 50 in the longitudinal direction can be temporarily held by the clamp 12.

Furthermore, according to the above-described configuration, the above-described effect 2 is achieved, so that the electric wire member 11 can be stably held by the clamp 12 .
Therefore, the electric wire members 11 can be temporarily held together while suppressing an increase in the number of parts.

(2) The clamp 12 has the engagement structure 30 that engages the hook portion 23 with the clamp body 20 when the hook portion 23 is in the second position.
According to this configuration, the hook portion 23 in the second position is engaged with the clamp body 20, so that a separate member for holding the hook portion 23 in the second position is not required, thereby making it possible to suppress an increase in the number of parts.

(3) The engagement structure 30 has an engagement protrusion 31 provided on the hook portion 23 and an engagement recess 32 provided on the clamp body 20. The engagement protrusion 31 is configured to be able to engage with the engagement recess 32.

According to this configuration, the engagement structure 30 can be easily realized by the engagement relationship between the engagement protrusions 31 and the engagement recesses 32 .
(4) The first fixing portion 21 is fixed to the electric wire member 11 by being wrapped around the electric wire member 11 with the tape 40 .

With this configuration, the configuration of the first fixing portion 21 can be simplified.
(5) The electric wire member 11 has the mark 11 a that indicates the position where the hook portion 23 is to be hooked.
According to this configuration, the position at which the hook portion 23 is hooked on the electric wire member 11 is prevented from varying depending on the worker, so that the electric wire members 11 can be effectively temporarily held together.

In addition, the worker can easily visually grasp the position where the hook portion 23 is to be hooked on the electric wire member 11. Therefore, the workability of temporarily holding the electric wire members 11 together is improved.
(6) The first fixing portion 21, the second fixing portion 22, and the hanging portion 23 are arranged in sequence in the length direction of the portion of the electric wire member 11 to which the clamp 12 is attached.

This configuration allows the worker to easily see the first fixing portion 21, the second fixing portion 22, and the hook portion 23. This makes it easy to attach the wire harness 10 to the bracket 51.

<Modification>
This embodiment can be modified as follows: This embodiment and the following modifications can be combined with each other to the extent that there is no technical contradiction.

The base portion 20A of the clamp body 20 may be configured in a gutter shape that surrounds the periphery of the electric wire member 11 .
The mark 11a may be omitted.

- The first fixing portion 21 is not limited to a configuration in which the tape 40 is wound around it. For example, it may be a configuration in which a cable tie is wound around it together with the electric wire member 11. In this case, the first fixing portion 21 may be provided with a hole through which the cable tie is inserted.

The locking portion 31a of the engaging protrusion 31 may be omitted.
The engagement recess 32 may be a recess that does not penetrate the second portion 20b.
The engagement structure 30 is not limited to the structure exemplified in the above embodiment. For example, the hook portion 23 may be provided with an engagement recess 32, and the second portion 20b may be provided with an engagement protrusion 31. As shown in Fig. 5, a bent portion 33 may be provided at the tip of the curved portion 23b of the hook portion 23. When the hook portion 23 is in the second position, the bent portion 33 wraps around to the second surface side of the first portion 20a and engages with the second surface.

The engaging structure 30 may be omitted. In this case, a holding member for holding the hook portion 23 in the second position may be provided separately from the clamp 12.
For example, the second fixing portion 22 may be provided on the second surface side of the second portion 20b. That is, the second fixing portion 22 may be provided at the same position as the hook portion 23 in the length direction of the portion of the electric wire member 11 to which the clamp 12 is attached.

- The second fixing part 22 may have any shape that allows it to be fixed to the object to be attached, and can be modified as appropriate to match the shape of the object to be attached.

LIST OF SYMBOLS 10 Wire harness 11 Electric wire member 11a Mark 12 Clamp 20 Clamp body 20A Base portion 20a First portion 20b Second portion 21 First fixing portion 22 Second fixing portion 22a Insertion hole 23 Hook portion 23a Plate portion 23b Curved portion 24 Connecting portion 30 Engagement structure 31 Engagement protrusion 31a Barb portion 32 Engagement recess 33 Bent portion 40 Tape 50 Vehicle body frame 51 Bracket (mounting object)

Claims (5)

An electric wire member;
A clamp that fixes the electric wire member to an attachment object,
the clamp includes a clamp body having a first fixing portion fixed to the electric wire member and a second fixing portion fixed to the attachment target, a hook portion capable of hooking onto the electric wire member at a position different from a position fixed to the first fixing portion , and a connecting portion rotatably connecting the hook portion to the clamp body,
The hook portion is configured to be movable between a first position where the hook portion can hook onto the electric wire member and a second position where the hook portion can hold the electric wire member by clamping the electric wire member together with the clamp body.
Wire harness. The clamp has an engagement structure that engages the hook portion with the clamp body when the hook portion is in the second position.
The wire harness according to claim 1 . the engagement structure includes an engagement protrusion provided on one of the hook portion and the clamp body, and an engagement recess provided on the other of the hook portion and the clamp body,
The engaging protrusion is configured to be engageable with the engaging recess.
The wire harness according to claim 2. The first fixing portion is fixed to the electric wire member by being wrapped with a tape together with the electric wire member.
The wire harness according to any one of claims 1 to 3. The electric wire member has a mark indicating a position where the hook portion is to be hooked.
The wire harness according to any one of claims 1 to 4.