JPH0919034A - Clamp for wire harness - Google Patents

Abstract

PURPOSE: To easily remove a clamp, for a wire harness, which is installed at an installation hole in a body panel or the like. CONSTITUTION: A protrusion part 15 is formed at the tip of a shaft part 13 which is installed so as to protrude from a fixation plate part 12 to which a wire harness is fixed. At least the shaft part 13 from the tip of the shaft part comprising the protrusion part 15 up to a base part continued to the fixation plate part 12 is divided vertically into two or more parts by keeping a gap S. Coupling blades 14A, 14B are installed so as to protrude at respective divided shaft parts 13A, 13B from a constricted position at the lower end of the tip protrusion part. Grooves 19A, 19B for slip prevention are formed on the surface of the coupling blades 14A, 14B, tip protrusion parts 15A, 15B are gripped so as to press the coupling blades when a body panel 16 is removed from an installation hole 16a, and the coupling blades are removed from the installation hole while the gap between the divided shaft parts is pressed and reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness clamp, which can be easily removed from a vehicle body panel or the like.

[0002]

2. Description of the Related Art Conventionally, this type of wire harness clamp has a configuration shown in FIG. 6 or 7. FIG.
In the clamp 4 of the first conventional example shown in FIG.
The shaft portion 2 is projected from the outer peripheral surface of the band portion 1 fixed to / H, and the two locking portions 3 are formed in an open leg shape from the upper end of the shaft portion 2.
And the locking portion 3 is pushed into a mounting hole provided in the vehicle body panel to be fitted thereto, whereby the wire harness W
/ H is fixed to the body panel.
608).

In recent years, there is an increasing need for separate disposal and recycling of automobile parts and materials. With regard to the above clamps, not only can the wire harness be securely fixed to the vehicle body panel or the like, but also the vehicle body panel or the like, if necessary. It is desired to be able to remove it for recycling.

However, in the clamp 4 of the first conventional example, in order to remove the clamp 4 from the vehicle body panel, the engaging portion 3 is bent inward with a finger or the like to release the engagement with the mounting hole. However, it is difficult to bend the locking portion 3 inward, and in practice, once it is attached, it cannot be removed.

In response to the above problem, the clamp 6 of the second conventional example shown in FIG. 7 is provided with a conical engaging portion 9 at the tip of a shaft portion 8 protruding from the wire harness fixing plate portion 7, and the engaging portion 9 is provided. The stopper portion 9 and the shaft portion 8 are vertically divided into two parts, and the respective divided shaft portions 8 are bent in directions toward each other so that the engagement between the mounting hole 10 and the locking portion 9 can be released. (Actual Kaihei 1-139188).

[0006]

In the clamp 6 described above,
When the clamp 6 is removed from the mounting hole 10, the conical curved surface 9a of each divided locking portion 9 is pressed in the axial center direction to bend each locking portion 9, but the locking portion 9 is conical. Because of the shape, the fingers and the like are slippery during the detaching work, and there is a problem that it takes time and effort to remove and a force more than necessary is required to prevent slipping.

The present invention has been made in view of the above problems, and it is possible to securely grasp the wire harness clamp fitted in the mounting hole of the vehicle body panel or the like and easily remove it with a relatively small force. The purpose is to be able to.

[0008]

In order to achieve the above object, according to the present invention, the wire harness clamp according to claim 1 is fixed to a wire harness as a wire harness clamp which is inserted and locked in a mounting hole of a material to be fixed such as a vehicle body panel. A protruding portion is provided at the tip of the shaft portion protruding from the fixed plate portion, and at least the shaft portion is vertically divided into two or more spaces from the tip of the shaft portion having the protruding portion to the base portion continuous to the fixed plate portion. Each of the split shafts is provided with locking blades projecting from the constricted position of the lower end of the tip projection, and a groove for non-slip is provided on the surface of the locking blades. When removing from the fixing material,
There is provided a wire harness clamp configured to hold the locking blade by grasping the protruding portion at the tip end and compress the space between the split shaft portions to bend the locking blade and remove it from the mounting hole.

The projection at the tip of the shaft portion is formed into a bulging spherical shape, and a semispherical projection is provided at each tip of the split shaft portion, and the surface provided with the anti-slip groove of each locking blade is made concave. It is preferably curved. (Claim 2)

The divided projections provided at the tip of the shaft portion are dimensioned so that the mounting holes of the fixed member can be inserted in a state where the projections are compressed and the central void is eliminated. Further, the outer diameter between the tips, which is the maximum dimension between the opposing locking blades, is set to be larger than that of the mounting hole, and the locking blade is allowed to pass through the mounting hole while being bent inward. further,
Positioning protrusions that engage with the inner peripheral surface of the mounting hole are provided at the tips of the retaining blades. Further, the fixing plate portion of the wire harness clamp may be fixed to the tape winding wire harness, or the fixing plate portion may be provided at one end of the locking band that is wound around the wire harness and fixed.

[0011]

According to the wire harness clamp of the first aspect of the present invention, when the clamp is attached to a vehicle body panel or the like,
If you force the locking blade protruding from the shaft into the mounting hole,
The gap between the vertically divided split shaft portions is reduced, and the locking blade bends inward and passes through the mounting hole. When the locking blade comes out of the mounting hole, the split shaft part opens in the separating direction and the diameter of the locking blade also expands, and the positioning part provided at the lower end of the locking blade comes into contact with the inner peripheral surface of the mounting hole and locks. The blade comes into contact with the rear surface side peripheral edge of the mounting hole to securely fix the wire harness to the vehicle body panel or the like.

When the clamp shaft is removed from the mounting hole of the clamp, the operator grips the projection at the upper end of each split shaft portion with his / her fingers and presses the surface of the locking blade provided with the non-slip groove to divide the split shaft portion. Compress so that there are no voids. By pulling out in this state, it bends so that the outer diameter of the locking blade becomes smaller,
It can pass through the mounting hole.

At this time, since the lower end of the upper protrusion that is gripped with a finger is constricted, the finger is gripped securely without slipping, and the surface of the locking blade provided with a non-slip groove is stabilized. In this state, you can hold it down and pull out while compressing the gap between the split shafts.

When the upper end projecting portion is spherical as described in claim 2, it is easy to grip with the finger, and when the concave curved portion is provided on the surface of the locking projection, it is easy to press with the finger.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to embodiments shown in the drawings. In the wire harness clamp 11 of the first embodiment shown in FIGS. 1 to 4, from the upper surface of the fixing plate portion 12 fixed to the wire harness by tape winding, to the shaft portion 13
And a protrusion 15 is provided on the upper end of the shaft 13, and a pair of locking blades 14 are protruded from the lower end of the protrusion 15 so as to face each other.

The shaft portion 13 has a columnar shaft portion extending from the upper end provided with the protrusion 15 to the base portion on the side connected to the fixed plate portion 12 with a space S having a width W1 along the central axis line. It is divided into two vertical sections. Therefore, the shaft portion 13 is composed of a pair of split shaft portions 13A and 13B having a semicircular cross section.

The protrusion 15 at the upper end of the shaft portion is bulged into a spherical shape. Therefore, by dividing the protrusion 15 into two parts vertically, a hemispherical protrusion 15 is formed at the upper end of the divided shaft parts 13A and 13B.
A and 15B project, and the lower ends of the projections 15A and 15B are constricted and are continuous with the outer peripheral surfaces of the respective split shafts 13A and 13B.

The locking blade 14 is composed of a pair of split shaft portions 13A,
13B includes a pair of locking blades 14A, 14B which are projected downward from the constricted lower end positions of the projections 15A, 15B in a downward direction and away from each other. Positioning projections 18A and 18B in the vertical direction parallel to the shaft portion are provided on the inner surfaces of the tips (lower ends in the drawing) of the locking blades 14A and 14B. Anti-slip grooves 19A and 19B are formed on the outer surfaces of the locking blades 14A and 14B. And the locking blade 1
4A and 14B are slightly curved so as to be recessed inward.

The mounting hole 16a of the vehicle body panel 16 into which the clamp having the above-mentioned shape is inserted and locked is circular, and the shaft portions 13A, 1
Divided protrusions 15A and 15B provided at the tip of 3B
Has a size setting such that the mounting hole 16a of the vehicle body panel 16 can be inserted in a state in which the central space S is eliminated by pressing. In addition, the outer diameter W2 between the tips, which is the maximum dimension between the pair of opposed locking blades 14A and 14B, is set to be larger than the inner diameter R of the mounting hole 16a, and when the clamp 11 is inserted and locked in the mounting hole 16a, The tip surfaces of the locking blades 14A and 14B are set so as to contact the peripheral edge of the mounting hole 16a on the inner surface side of the vehicle body panel 16. Further, at the time of removal, the space S is contracted and the locking blades 14A and 14B are allowed to pass through the mounting hole 16a while being bent inward. Further, the positioning protrusions 18A and 18B provided at the tips of the locking blades are
The dimensions are set such that when the clamp 11 is locked in the mounting hole 16a, each outer surface abuts the inner peripheral surface of the mounting hole 16a.

When the fixed clamp 11 in which both ends of the fixed plate portion 12 are wound with the tape 17 is attached to the wire harness W / H on the vehicle body panel 16, the shaft portion 13 is attached to the attachment hole 1.
Do it by forcing it into 6a. When the shaft portion 13 is inserted into the mounting hole 16a, first, the tip projection portion 15 is pressed against the inner peripheral surface of the mounting hole 16a to shrink the space S, and passes through the mounting hole 16a. Next, the locking blades 14A and 14B also have the space S contracted and are bent inward to pass through the mounting hole 16a. The tips of these locking blades 14A and 14B are attached to the mounting hole 16
When it passes through a and is located on the rear surface side of the vehicle body panel 16, the locking blades 14A and 14B return to the original state and spread, and the tip end surfaces thereof are brought into contact with the peripheral edge of the mounting hole 16a and locked. And,
Positioning protrusions 18A, 18 protruding from the abutted tip surface
B contacts the inner peripheral surface of the mounting hole 16a and positions and holds it. In this way, the clamp 11 is fixed to the mounting hole 16a of the vehicle body panel 16 and holds the wire harness W / H on the vehicle body panel.

When the clamp 11 is detached from the vehicle body panel 16, the operator grips the portion of the clamp 15 with the locking blade 14 as shown in FIG. That is, the tip projections 15A and 15B of the separated shafts 13A and 13B are sandwiched,
It is pressed in the axial center direction and compressed so as to eliminate the central void S. At the same time, curved and non-slip groove 19A,
The surface of the locking blades 14A, 14B provided with 19B is pressed with a finger to push in the axial center direction, and the split shaft portions 13A, 13B are bent so as to crush the space S. As a result, the outer diameter W2 of the locking blades 14A, 14B is narrower than the inner diameter R of the mounting hole 16a, and in this state, the shaft portion 13 is pulled out by pulling it toward the insertion side (Y) in the direction indicated by the arrow. Mounting hole 1
It can be pulled out from 6a.

FIG. 5 shows a second embodiment in which a clamp is provided on a band wound around a wire harness. The clamp 21 of the second embodiment has the same shaft portion 13, locking blades 14, and tip projection 15 as those of the first embodiment on a fixed plate portion 23 having a band lock portion provided at one end of the band portion 22. A clamp for the vehicle body is provided. The clamp portion is further provided with a locking vane 24 that faces the locking vane 14 with the vehicle body panel interposed therebetween. Since the other shapes and actions are the same as those of the first embodiment, the description will be omitted.

[0023]

As is apparent from the above description, in the wire harness clamp according to the first aspect of the present invention, the projections provided on the upper ends of the respective split shaft portions are gripped to move the respective split shaft portions in the axial center direction. To reduce the diameter of the locking blade, but at that time,
Since there is a constriction between the locking blade and the protrusion, the finger can be gripped securely without slipping. Moreover, since the non-slip groove is also provided on the surface of the locking blade, the locking blade can be pressed and bent in the direction of reducing the diameter without slipping.
In this way, when the clamp is removed, the force can be reliably applied without slipping the fingers, so that the clamp can be easily removed from the mounting hole with a relatively small force.

In the wire harness clamp of the second aspect, since the surface of the locking blade is recessed in a curved shape, it is easy to press a finger, and the projection has a spherical shape.
It is easy to pinch and compress from both sides.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a wire harness clamp of a first embodiment.

FIG. 2A is a plan view of a main part of FIG. 1, and FIG. 2B is a front view.

FIG. 3 is a cross-sectional view showing a state in which a locking portion is fitted in a mounting hole.

FIG. 4 is a view showing an operation state when a clamp is removed.

FIG. 5 is a front view of a clamp according to a second embodiment.

FIG. 6 is a perspective view showing a clamp of a first conventional example.

FIG. 7 is a perspective view showing a clamp of a second conventional example.

[Explanation of symbols]

 11, 21 Wire harness clamp 12 Fixing plate portion 13 Shaft portion 13A, 13B Split shaft portion 14 (14A, 14B) Locking blade 15 (15A, 15B) Projection portion 16 Body panel 16a Mounting hole 17 Tape 19A, 19B Non-slip Groove 22 Band part 23 Lock part 24 Fixed band part S Air gap W / H Wire harness

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroshi Hasegawa 1-7-10 Kikuzumi, Minami-ku, Nagoya-shi, Aichi Harness Research Institute, Inc.

Claims (2)

[Claims] 1. A wire harness clamp which is inserted and locked in a mounting hole of a material to be fixed such as a vehicle body panel, wherein a protrusion is provided at a tip of a shaft portion protruding from a fixing plate portion fixed to the wire harness. At the same time, at least the shaft portion is divided into two or more vertically divided spaces from the tip of the shaft portion having the projection portion to the base portion continuous with the fixed plate portion,
Each of these split shafts is provided with locking blades projecting from the constricted position of the lower end of the tip protruding portion, and a groove for non-slip is provided on the surface of these locking blades to remove from the fixed material. A wire harness clamp configured such that the distal end protruding portion is sometimes grasped and the locking blade is pressed down to compress and shrink the gap between the split shaft portions while the locking blade is bent and taken out from the mounting hole. 2. A surface provided with a hemispherical projection at each tip of the split shaft and a groove for non-slip of each of the locking blades, wherein the projection at the tip of the shaft has a bulged spherical shape. The wire harness clamp according to claim 1, wherein the wire is concavely curved.