JPH08240284A - Clamp for wire harness - Google Patents

Abstract

PURPOSE: To form a clamp for locking a wire harness to a body, so as to be capable of absorbing the motion of the wire harness due to a vibration. CONSTITUTION: This clamp is formed out of a base plate 11 fastened to a wire harness W/H, and an locking member 12 with a base plate mounting section 12a bulged from one end of a support shaft 12b as well as an locking blade section 12c the other end for locking with a body. The first housing section formed out of a small capacity recess and the second housing section 11d formed out of a large capacity recess are provided on the base plate 11 in the thicknesswise direction thereof, in such a state as communicated to each other. Furthermore, the first housing section 11c or the second housing section 11d are open to the surface 11b of the wire harness W/H opposite to the fixed side thereof, and the support shaft 12b of the locking member 12 is led through an opening 11h to support and house the section 12a in the first housing section 11c. In this state, the shaft 12b is locking to the body. The section 12a after the locking of the shaft 12b is moved to the second housing section 11d, and housed therein in such a state as capable of motion.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp for mounting a wire harness to be installed on a vehicle along a panel of a vehicle body, and more particularly to fixing the vehicle body locking portion to lock the vehicle body when the vehicle body is mounted. On the other hand, after the vehicle body is locked, the vibration of the engine and the vibration generated when the vehicle is running can be absorbed and alleviated so that the clamp itself absorbs the vibration and the like so that the electric wire is not broken.

[0002]

2. Description of the Related Art Conventionally, a clamp for attaching a wire harness to be installed in a vehicle to a vehicle body panel has a structure in which a vehicle body locking blade is projected on one surface of a flat base plate, and the base plate is adhered to the wire harness. Secure the tape by winding it with tape, and insert the spindle of the vehicle body locking blade, which is integrally projected from the base plate on the opposite side of the wire harness fixed side, into the through hole of the vehicle body panel and at the periphery of the through hole. A step portion provided at the tip of the locking blade portion protruding from both sides of the support shaft is engaged with and fixed to the peripheral edge of the through hole.

However, in the wire harness attached to the vehicle body by the above-mentioned clamp, the wire harness vibrates together with the vibration of the engine and the vibration of the vehicle while traveling, especially the vibration generated when traveling on a rough road. As a result, the wire harness moves vertically and horizontally, so that there is a problem that a load is applied to the clamp, particularly, the support shaft of the vehicle body locking blade, and the wire harness is easily damaged.

On the other hand, a clamp for a wire harness is disclosed in Japanese Utility Model Laid-Open No. 1-146722. As shown in FIG. 9, the clamp 1 includes a base portion 2 for fixing a wire harness by winding the tape with an adhesive tape and a locking portion 3 for engaging with a through hole of a vehicle body panel to maintain a fixed state. Separated from the body, semicircular rings 2a and 3a are provided on the base portion 2 and the engaging portion 3, respectively, and the semicircular rings 2a and 3a are connected by an O-ring 4. 4 absorbs the above vibration and prevents the clamp from being damaged by being stressed.

[0005]

However, according to the clamp 1, since the separate base portion 2 and the engaging portion 3 are connected by the semicircular rings 2a, 3a and the O ring 4 in a chain shape, The locking portion 3 cannot be stably supported at a fixed position with respect to the portion 2. Therefore, it is not easy to position the locking portion 2 in the through hole of the vehicle body panel during the mounting work, and there is a problem that the mounting work on the vehicle body panel is troublesome.

Further, even when the clamp 1 is fixed to the wire harness and attached to the vehicle body panel,
Since the locking portion 3 is connected to the base portion 2 in an unstable state, vibration and movement are likely to occur in the wire harness, which causes noise due to interference with the vehicle body. Further, since the rings are connected, there is a possibility that the rings 2a, 3a, and 4 will be entangled and cut during the work of mounting on the vehicle body panel or the handling and packing state of the wire harness after mounting the clamps.

The present invention has been made in view of the above problems, and in particular, when the vehicle body is mounted, the clamp body of the clamp can be stably held so that the clamp body can be easily mounted. It is an object of the present invention to provide a wire harness clamp that can absorb and mitigate vibrations and vibrations that occur when the vehicle is running, and that can hold the vehicle body locking portion more stably than before.

[0008]

In order to achieve the above object, the present invention according to claim 1 has a base plate fixed to a wire harness and a base plate mounting portion bulging at one end of a support shaft. A second housing member having a locking member having a locking blade portion that is locked to the vehicle body on the other end side, the first housing portion having a small volume concave portion and the large volume concave portion in the plate thickness direction of the base plate. The first accommodating part or the second accommodating part is opened on the surface opposite to the wire harness fixing side, and the supporting shaft of the locking member is passed through the opening to attach the base plate attaching part to the first part. For a wire harness configured to be fitted and supported in a housing portion, locked to the vehicle body in this state, and after being locked, the base plate mounting portion is moved to the second housing portion and movably housed in the second housing portion. It provides a clamp.

The first accommodating portion has a shape in which the base plate mounting portion is substantially fitted and held, and the second accommodating portion has a shape in which the base plate mounting portion is loosely fitted and can be moved in an arbitrary direction. The fitting of the base plate mounting portion to the first accommodating portion is preferably performed when the base plate is still in a soft and deformable state immediately after molding.

A temporary locking portion is projected from a peripheral wall of a first accommodating portion and a second accommodating portion, which are provided so as to communicate with each other in the plate thickness direction, and a base plate mounting portion of the locking member is placed in the first accommodating portion. It is preferable to lock the vehicle in the state of being temporarily locked and housed, and to move over the temporary locking portion to the second housing portion after locking.
(Claim 2)

The surface of the temporary locking portion on the side of the first accommodating portion is an inclined surface or a spherical surface, while the base plate mounting portion of the locking member is provided with an inclined surface or a spherical surface that contacts the inclined surface or the spherical surface. Is preferred. (Claim 3)

Specifically, the base plate is provided with a small-capacity first accommodating portion that opens on the opposite side to the wire harness fixing side, and a second accommodating portion having a larger volume than the surface of the base plate. The base plate mounting portion, which is provided so as to project through the locking portion and has a substantially conical shape of the locking member, with the surface of the temporary locking portion on the first accommodation portion side being an inclined surface, is fitted into the first accommodation portion. The base plate mounting portion is moved to the second accommodating portion after being integrally supported and the locking blade portion is locked to the vehicle body.

Alternatively, the base plate is provided with a large-capacity second accommodating portion that opens on the opposite side to the side where the wire harness is fixed, and the temporary accommodating portion is provided with the first accommodating portion having a smaller volume than the surface of the base plate. Is provided so as to protrude through the first locking portion of the temporary locking portion.
The base plate mounting portion, which has a spherical surface on the housing portion side and the substantially spherical locking member, is fitted and held in the first housing portion, and the locking blade portion is locked to the vehicle body. 2 It is configured to be moved to the accommodation section.

[0014]

According to the wire harness clamp of the first aspect of the present invention, the base plate mounting portion of the separate locking member is provided in the small volume first accommodating portion provided on the base plate fixed to the wire harness. Due to the fitting, the locking member is supported by the base plate substantially immovable. In this state, the locking blade portion is inserted into the through hole of the vehicle body and locked, so that the mounting work to the vehicle body panel can be easily performed. Further, after locking to the vehicle body panel, the base plate mounting portion of the locking member is housed in the large-volume second housing portion provided in the base plate so that the base plate mounting portion can be moved to some extent in the second housing portion. Therefore, if the wire harness moves up, down, left, or right due to engine vibration or vibration generated while the vehicle is running, the base plate moves relative to the locking member to mitigate the vibration in response to the movement. However, the load applied to the clamp, particularly the support shaft of the locking member, can be reduced, and the support shaft can be prevented from being damaged.

According to the clamp of the second aspect, the first
Since the temporary locking portion that temporarily locks the base plate mounting portion is projected from the peripheral wall of the housing portion and the second housing portion, the base plate mounting portion of the locking member is fixed to the base plate before locking to the vehicle body. It is possible to prevent the base plate mounting portion from moving to the large-capacity second accommodating portion while being accommodated in the first accommodating portion.

According to the clamp of the third aspect, the first housing portion side of the temporary locking portion is formed as an inclined surface or a spherical surface, while the inclined surface or spherical surface corresponding to the base plate mounting portion of the opposed locking member. Since the provisional part is provided, it is possible to move over the temporary locking part and move the base plate mounting part from the first accommodating part to the second accommodating part.

[0017]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. 1 to 4 show a clamp 10 for a wire harness according to a first embodiment of the present invention, which includes a base plate 11 fixed to a wire harness W / H arranged in a vehicle, and a wire harness attached to the base plate 11. The locking member 12 for locking the W / H at the mounting location of the panel 15 of the vehicle body,
Each is molded separately from synthetic resin.

As shown in FIG. 2, the base plate 11 is composed of an elongated flat plate, and tape stoppers 11m projecting toward the upper surface 11b are provided at both ends in the lengthwise direction. A first accommodating portion 11c, which is a small-volume concave portion, and a second accommodating portion 11d, which is a large-volume concave portion, are provided at approximately the center in the length direction of the base plate 11 so as to communicate with each other in the plate thickness direction. . A temporary locking portion 11i is provided at the boundary between the first housing portion 11c and the second housing portion 11d.

The first accommodating portion 11c is formed by circularly recessing the center of the upper surface 11b opposite to the lower surface 11a for fixing the wire harness W / H. The second housing portion 11d
From the upper surface 11b of the base plate 11 to the first housing portion 1
An annular frame wall 11f having a diameter larger than the inner diameter of 1c is projectingly provided, and an upper wall 1 projecting inward from the upper end of the frame wall 11f.
It is formed by projecting 1g. An opening 11h is provided at the center of the upper wall 11g to allow a support shaft 12b of a locking member 12 to be described later to project outward.

The temporary locking portion 11i is provided at the boundary between the first accommodating portion 11c and the second accommodating portion 11d so as to project in the circumferential direction, and the first accommodating portion 11c and the second accommodating portion 11d are formed in the center thereof. Is formed with an insertion hole 11j. Also, the first
An inclined surface 11k is provided on the surface of the temporary locking portion 11i on the accommodation portion 11c side.

The locking member 12 is provided by bulging the base plate mounting portion 12a at one end of the support shaft 12b, and the inclined surface 11k of the temporary locking portion 11i is provided on the upper surface of the base plate mounting portion 12a.
The inclined surface 12e corresponding to is provided. Also, the support shaft 12b
A pair of locking blades 12c having a step 12d attached to the through hole 15a of the vehicle body panel 15 is provided on the other end side of the.

The base plate mounting portion 12a has a substantially conical shape and is set so as to be fitted closely into the first accommodating portion 11c of the base plate 11, while being larger than the inner diameters of the opening 11h and the insertion hole 11j. . Further, the second accommodating portion 11d is set to a size such that the base plate mounting portion 12a can be moved in the left-right direction by a required distance and can be slightly moved in the vertical direction.

The clamp 10 holds the locking member 1 when the base plate 11 is in a soft and deformable state immediately after molding.
The second base plate mounting portion 12a is press-fitted through the opening 11h and the insertion hole 11j of the base plate 11, and the base plate mounting portion 12a of the separate locking member 12 is fitted and assembled in the first accommodating portion 11c. .

As described above, the base plate 1 is fixed to the clamp 10 in the temporary locking state in which the base plate mounting portion 12a of the locking member 12 is fitted and supported in the first accommodating portion 11c of the base plate 11.
The wire harness W / H is arranged on the lower surface 11a of the base plate 1, and the wire harness W / H is tape-wrapped with the adhesive tape 16 and fixed to both ends of the base plate 11 in the length direction. In the temporary locking state, the base plate mounting portion 12a is accommodated and supported in a stable state by the temporary locking portion 11i.

When the wire harness W / H is routed to the vehicle, the locking member 12 of the clamp 10 is arranged so as to face the through hole 15a of the vehicle body panel 15, and the locking member 12 is locked in the through hole 15a. The blade portion 12c is bent inward and inserted, and after insertion, the locking blade portion 12c returns to its original state as shown in FIG. 2, and the step portion 12d at the tip thereof engages with the peripheral edge of the through hole 15a. In this locking operation to the vehicle body panel 15, the base plate mounting portion 12a is fitted and supported in the first accommodating portion 11c, and the locking member 12 is supported substantially immovable with respect to the base plate 11. It can be done easily.

As described above, the base plate 11 is pulled downward together with the wire harness W / H in a state where the locking vane portion 12c of the locking member 12 is locked to the vehicle body panel 15, as shown in FIG.
As shown in, the temporary locking portion 11i is overcome and the base plate mounting portion 12a is moved to the second accommodating portion 11d.

At this time, the vehicle body locking holding force of the locking blade portion 12c is larger than the force of the base plate mounting portion 12a over the temporary locking portion 11i, so that the engagement with the vehicle body panel 15 is not disengaged. Make sure that the plate mounting portion 12a is in the second accommodating portion 1
It can be moved to 1d to obtain the attached state of FIG.

In the above mounted state, as shown in FIGS. 4A and 4B, the base plate mounting portion 12a can move inside the second accommodating portion 11d, so that the vibration of the engine or the vibration of the vehicle traveling is generated. Thus, when the wire harness W / H moves, the base plate 11 can move with respect to the locking member 12 positioned corresponding to the movement. As described above, since the movement of the wire harness W / H can be absorbed, the load applied to the locking member 12 can be reduced, and damage to the locking member 11, especially the support shaft 12b can be prevented.

Further, although the base plate 11 can be moved to the left and right with respect to the locking member 12 to some extent as described above, the height of the second accommodating portion 11d is made slightly larger than the height of the base plate mounting portion 12a. Since the movement in the vehicle body locking direction is reduced as much as possible, compared to the conventional clamp 1 shown in FIG. 9,
The wire harness W / H can be held in a stable state.

5 to 7 show the clamp 10 of the second embodiment.
The clamp 10 has a second
The accommodating portion 11d 'is recessed in the upper surface 11b of the base plate 11, while the first accommodating portion 11c' consisting of a small-volume concave portion is provided in the frame wall 11
It is formed by projecting f'and the upper wall 11g '. Further, the temporary locking portion 11i formed at the boundary between the first housing portion 11c 'and the second housing portion 11d' is provided with a spherical surface 11k 'instead of the inclined surface 11k shown in the first embodiment. Furthermore, the upper wall 11g '
Similarly, a spherical surface is provided on the inside of the first housing 11c 'to form an elliptic spherical shape. On the other hand, in the locking member 12, the base plate mounting portion 12a 'is formed in an elliptic spherical shape slightly smaller than the first accommodating portion 11c' so as to correspond to the spherical surface 11k '.

Like the first embodiment, the clamp 10 has the locking member 12 while the base plate 11 is still soft.
Is press-fitted to fit the base plate mounting portion 12a 'of the locking member 12 into the first accommodating portion 11c'. In the clamp 10 of the second embodiment, the base plate 11 is fixed by winding the wire harness W / H around the tape, as in the first embodiment.

When the wire harness W / H to which the clamp 10 is attached is routed to the vehicle, the locking blade portion 12c of the locking member 12 is pressed into the through hole 15a of the vehicle body panel 15. When the locking blade 12c is press-fitted into the through hole, a reaction force is applied to the locking member 12 in a direction opposite to the press-fitting direction,
At the same time that the locking blade portion 12c locks on the peripheral edge of the through hole 15a, the base plate mounting portion 12a 'moves over the temporary locking portion 11i and moves to the second accommodating portion 11d'.

As described above, according to the clamp 10 of the second embodiment, the locking member 12 is inserted into the through hole 15a of the vehicle body panel 15.
At the same time, the locking member 12
Since the base plate mounting portion 12a can be housed in the large-capacity second housing portion 11d ', the mounting workability can be further improved.

In the mounted state, as shown in FIGS. 7A and 7B, the base plate mounting portion 12a 'is connected to the wire harness W / H in the second accommodating portion 11d' as in the first embodiment. Wire harness W that moves in response to vibrations of the vehicle while traveling
/ H can be absorbed and mitigated.

FIG. 8 shows a modification of the second embodiment.
In the clamp 10 shown in (A), the surface of the temporary locking portion 11i on the side of the first accommodating portion 11c "is formed into a spherical surface. Further, the base plate mounting portion 12a" of the locking member 12 is formed into a substantially rectangular parallelepiped shape. In addition to being formed, its lower surface is formed into an arc-shaped spherical surface. Moreover, in the clamp 10 shown in FIG.
The surface of the temporary locking portion 11i on the c '''side is formed as an inclined surface.
Further, the base plate mounting portion 12a '''of the locking member 12 is formed to have a substantially hexagonal cross section, and the lower surface facing the temporary locking portion 11i corresponds to the inclined surface.

[0036]

As is apparent from the above description, in the wire harness clamp according to claim 1 of the present invention, the base plate is fixed to the wire harness, and when the vehicle body is locked to the base plate, Since the base plate mounting portion of the locking member is fitted and supported in the small-volume first accommodating portion and the locking member is fixedly supported by the base plate, the positioning and engagement in the through hole of the vehicle body It can be easily stopped.
On the other hand, after the locking, the base plate mounting portion is loosely fitted in the large-capacity second accommodating portion, so that the base plate can move with respect to the locking member. Therefore, when the wire harness vibrates and moves due to the vibration of the engine or the vibration generated when the vehicle travels, the base plate moves in response to the movement of the wire harness, and the movement of the wire harness is absorbed and alleviated.
It is possible to prevent a load from being applied to the locking member and to prevent the wire harness from being broken.

In the clamp according to the second aspect of the invention, since the temporary locking portion for temporarily locking the base plate mounting portion is provided at the boundary between the first housing portion and the second housing portion, it is locked to the vehicle body. In the previous state,
The state in which the base plate mounting portion of the locking member is fitted and supported in the first accommodating portion can be maintained, and the base plate mounting portion can be reliably prevented from moving to the movable second accommodating portion.

In the clamp according to the third aspect, the surface of the temporary locking portion on the side of the first accommodating portion is formed to be an inclined surface or a spherical surface, and the surface of the base plate mounting portion facing the inclined surface is also made to correspond. Alternatively, since it is formed into a spherical surface, it is possible to surely and easily perform the work of moving over the temporary locking portion and moving the base plate mounting portion to the second accommodating portion after being locked to the vehicle body.

[Brief description of drawings]

FIG. 1 is a perspective view showing a clamp according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which a wire harness is attached to the clamp of FIG. 1 and is inserted into a vehicle body panel.

FIG. 3 is a cross-sectional view showing an attached state of a clamp.

4A and 4B are cross-sectional views for explaining the action of the clamp in the attached state.

FIG. 5 is a cross-sectional view showing a state in which the clamp of the second embodiment is inserted into the vehicle body panel.

FIG. 6 is a cross-sectional view showing a mounted state of a clamp of the second embodiment.

7A and 7B are cross-sectional views for explaining the action of the clamp in the attached state.

FIGS. 8A and 8B are cross-sectional views of essential parts showing a modified example of the clamp of the second embodiment.

FIG. 9 is a perspective view showing a conventional clamp.

[Explanation of symbols]

 10 clamp 11 base plate 11a lower surface 11b upper surface 11c first housing portion 11d second housing portion 11h opening 11i temporary locking portion 12 locking member 12a base plate mounting portion 12b support shaft 12c locking blade portion 12d step portion 15 vehicle body panel 15a Through hole W / H wire harness

Claims (3)

[Claims] 1. A base plate fixed to a wire harness; a locking member having a bulging base plate mounting portion at one end of a support shaft and a locking blade portion locking at the other end on the vehicle body. And a first accommodating portion having a small-volume concave portion and a second accommodating portion having a large-volume concave portion are provided in communication with each other in the plate thickness direction of the base plate, and the first accommodation portion is provided on the surface opposite to the wire harness fixing side. The housing portion or the second housing portion is opened, the support shaft of the locking member is fitted and supported through the opening in the base plate mounting portion to the first housing portion, and in this state, locked to the vehicle body and after locking. A clamp for a wire harness configured to move the base plate mounting portion to the second accommodating portion so as to be movably accommodated in the second accommodating portion. 2. A temporary locking portion is projected from a peripheral wall of a boundary between the first accommodating portion and the second accommodating portion, which are provided so as to communicate with each other in the plate thickness direction,
The base plate mounting part of the locking member is temporarily locked in the first housing part and is locked in the vehicle body in a state of being housed, and after locking, the temporary locking part is overridden and moved to the second housing part. The wire harness clamp according to claim 1. 3. The surface of the temporary locking portion on the side of the first accommodating portion is an inclined surface or a spherical surface, and the base plate mounting portion of the locking member is provided with an inclined surface or a spherical surface that contacts the inclined surface or the spherical surface. The wire harness clamp according to claim 2, which is provided.