JP2003299231A - Universal clamp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clamp high in flexibility which can change the direction of a holding part such as a wire harness, etc. <P>SOLUTION: The first member 10 to which either a thrust anchor 15 to be attached to a fixing part or a band 28 for holding a wire harness H, etc., is fixed, and the second member 20 to which the other of the thrust anchor and the band is fixed can engage with each other from axial direction capably of changing the angle of relative rotation around a common axis O of rotation. In either of both members, a large number of first projections 12 or recesses are made along the circumference centering upon the axis of relative rotation, and in the other member, a plurality of second projections 23, which restrict the relative rotation of both these members, engaging with first projections or recesses, in the condition that both these member engage with each other, are made. It is good to severally form end faces 11 and 22, which face each other in axial direction, at both members 11 and 22, and to form the first projections or recesses in either of both these end faces and the second projections on the other. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a wire harness,
The present invention relates to an improvement of a clamp for attaching an elongated flexible member such as a pipe or a control cable to a fixed portion such as a body.

[0002]

2. Description of the Related Art An example of this type of clamp is shown in FIG.
(A) and (b) of. The clamp 1A shown in FIG. 5 (a) is composed of a lock part 2, a band 3 and a plug-in anchor 4 which are integrally formed of elastic synthetic resin so that the tip part does not come out of the lock part 2. After holding the flexible wire harness H and the like by the band 3 passed through, the insertion anchor 4 provided in the lock portion 2
Is inserted into the elongated hole 9a of the bracket 9 attached to a fixed portion such as a body, and attached. The insertion anchor 4 is a claw portion 4 that protrudes on both sides at the tip of a short prismatic base.
a is provided and a notch 4b is provided between both claws 4a. After both claws 4a are elastically deformed inward and inserted into the elongated hole 9a of the bracket 9, the elastic deformation of the claws 4a is restored. By doing so, the clamp 1A is prevented from coming off, and the clamp 1A is attached to the bracket 9.

In this clamp 1A, when mounted on the bracket 9, the square base portion of the insertion anchor 4 is an elongated hole 9.
Since it abuts the parallel inner surface of a, the direction of the wire harness H is restricted to the direction orthogonal to the longitudinal direction of the slot 9a,
The direction does not change. Further, in the clamp 1B shown in FIG. 5 (b), the angle of the insertion anchor 4 with respect to the lock portion 2 is 90 degrees.
It is the same as the clamp 1A except that it is different, and if this is used, the orientation of the wire harness H is restricted to the direction parallel to the longitudinal direction of the elongated hole 9a.

[0004]

The orientation of the portion of the wire harness H or the like held by the clamp is required to be various orientations in relation to the arrangement of the surrounding members, which is the lock portion 2 and the band. Anchor 4 inserted into 3
This can be achieved by preparing clamps having various angles, but this is not preferable because the number of types of clamps increases. On the other hand, it is conceivable that the base portion of the insertion anchor is formed in a cylindrical shape so that the claw portion also projects all around, but the portion of the flexible wire harness H held by the clamp resists its elasticity. Since it is desired to hold the anchor in a predetermined direction, an anchor having a cylindrical base cannot meet such a demand.

According to the present invention, a clamp is constituted by two members whose relative rotation angles are changeably engaged, and a protrusion or a recess for engaging the two members with each other and restraining the relative rotation therebetween is provided. The purpose is to solve each of these problems.

[0006]

For this purpose, the angle-free type clamp according to the present invention is provided with a band that is wound around an elongated flexible member such as a wire harness to hold the band, and the band is fixed to a fixing portion such as a body. In a clamp provided with a fixing portion to be attached, a first member to which either one of the fixing portion and the band is fixed and a second member to which the other of the fixing portion and the band are fixed are arranged around a common rotation axis. The rotation angle is changeable and engageable in the direction of the rotation axis, and a large number of first projections or recesses are formed on either one of the members along the circumference centered on the rotation axis of the relative rotation. On the other hand, when the two members are engaged, a large number of first
It is characterized in that a plurality of second projections are formed to engage with the projections or recesses and restrain the relative rotation of the both members.

The angle adjustable clamp described in the preceding paragraph is the first
The member and the second member are respectively formed with end faces that face each other in the rotation axis direction in a state of being engaged with each other in the rotation axis direction, and a large number of first projections or recesses are formed on either one of the both end faces. It is preferable to form a plurality of second protrusions on the other side.

The angle-free type clamp described in the preceding paragraph is the first
The member has a disk shape, the second member has a bottomed cylindrical shape having a bottom portion and a peripheral wall portion, and the peripheral wall portion allows insertion of the first member inside thereof, but engages with the outer peripheral edge of the first member. It is preferable that a hooking portion for restraining the detachment is integrally formed, and each end surface of both members facing each other in the rotation axis direction is an inner end surface of a bottom portion of the second member and an end surface of the first member facing the inner end surface.

In the angle adjustable clamp described in the preceding paragraph, the hook portion is formed along the entire circumference of the tip edge of the peripheral wall portion, and the peripheral wall portion and the hook portion are circumferentially formed by a plurality of slits extending in the direction of the rotation axis. It is preferable to divide into a plurality of directions.

[0010]

In the angle adjustable clamp of the present invention, the angle of the band with respect to the fixed portion is set to a desired angle by adjusting the relative rotation angle of the first member and the second member about the common rotation axis. When both members are engaged with each other in the state of the rotation axis in the state, the first protrusion or the concave portion and the second protrusion formed on both members are engaged with each other, and both members are restrained so as not to rotate relative to each other. Therefore, according to the angle adjustable type clamp of the present invention, the angle of the band with respect to the fixed portion can be variously changed only by changing the relative angle of each one type of the first member and the second member and engaging them. Performance, which can reduce the effort of clamp selection and inventory control.

The first member and the second member are respectively formed with end faces facing each other in the rotation axis direction in a state of being engaged with each other in the rotation axis direction, and a large number of first projections or recesses are formed on either one of the both end faces. However, according to the angle type clamp in which the plurality of second protrusions are formed on the other of the both end surfaces,
The first and second members are constrained from relative rotation by the first projection or the recess and the second projection at the end of the engagement from the rotation axis direction, and the relative rotation is possible until then. As described above, since the relative rotation angle of the first and second members can be adjusted until just before the engagement is completed, it is easy to adjust the angle of the band with respect to the fixed portion to a desired angle.

The first member is disk-shaped, and the second member is cylindrical with a bottom having a bottom portion and a peripheral wall portion. The peripheral wall portion allows the insertion of the first member, but the outer peripheral edge of the first member. The hooking part that is engaged with and restrains its disengagement is integrally formed,
The end faces of both members facing each other in the direction of the rotation axis are second
According to the angle type clamp having the inner end surface of the bottom portion of the member and the end surface of the first member facing the inner end surface, the member for restraining the separation of the first member from the second member is formed integrally with the second member. Since the hooking part does not require a separate member, the number of parts is reduced, and the first member is inserted inside the peripheral wall of the second member to restrain the disengagement and complete the assembly. The manufacturing cost of the mold clamp can be reduced.

The hooking portion is formed along the entire circumference of the tip edge of the peripheral wall portion, and the peripheral wall portion and the hooking portion are divided into a plurality of angularly variable clamps in the circumferential direction by a plurality of slits extending in the rotation axis direction. According to this, the elasticity of the peripheral wall portion provided with the hooking portion can be adjusted, so that the first member can be easily inserted and assembled into the second member, and the first member can surely be prevented from coming off. You can get a clamp.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the embodiments shown in FIGS. The angle controllable clamp according to this embodiment includes a first member 10 and a second member 20 which are engageable with each other in the direction of the rotation axis O.
The member 10 is integrally formed with the insertion anchor (fixing part) 15, and the second member 20 is provided with the lock part 25 and the band 2.
8 is integrally formed.

As shown in FIGS. 1, 2 and 4, the first
The member 10 has a substantially disc shape and has an end surface 11 on the second member 20 side.
A protruding outer peripheral edge 10a is formed on the outer periphery on the side,
The first taper surface 1 is provided at the corner between the outer peripheral edge 10a and the end surface 11.
0b is formed. Further, on the end surface 11 of the first member 10, a large number of first projections 12 extending in the radial direction are formed at equal angular intervals along a circumference centered on the rotation axis O of the first member 10. The insertion anchor 15 is formed so as to project at the center of the end surface of the first member 10 opposite to the end surface 11. The insertion anchor 15 is provided with a pair of claws 17 projecting on both sides at the tip of a short prism-shaped base 16 projecting from the end face of the first member 10, and a wedge-shaped notch 18 is provided between the claws 17. The tip of the notch 18 reaches the inside of the first member 10. The first member 10 and the insertion anchor 15 are integrally formed of elastic synthetic resin (for example, polyamide resin).

As shown in FIGS. 1, 3 and 4, the second member 20 has a bottomed cylindrical shape consisting of a bottom portion 20a and a peripheral wall portion 20b, and is formed along the entire circumference at the tip edge of the peripheral wall portion 20b. The facing hooking portion 21 is formed. A second taper surface 21a is formed at a corner portion between the inner peripheral surface of the hook portion 21 and the tip end surface of the peripheral wall portion 20b, and the peripheral wall portion 20b and the hook portion 21 include 12 pieces extending in parallel with the rotation axis O. It is divided into 12 by the slit 24 at equal intervals in the circumferential direction. In the state in which the first and second members 10 and 20 are engaged with each other by the hooking portion 21, the bottom portion 20a of the second member 20 that faces the end surface 11 of the first member 10 in the axial direction with a slight gap therebetween The end surface 22 has two radially extending second projections 2 engageable with the first projection 12 formed on the end surface 11.
3 is formed.

At the center of the back surface of the bottom portion 20a opposite to the inner end surface 22, there is integrally formed a block-shaped lock portion 25 in which a through hole 26 having a rectangular cross section extending in the left-right direction in the drawing is formed along the back surface. Is integrally formed in the through hole 26, the right end side is integrally fixed to the inner surface on the ceiling side, and the cantilever spring-like engaging piece 27 extending to the lower left is integrally formed. Further, an elongated band 28 having a width narrower than that of the through hole 26 and extending leftward in a free state (see the two-dot chain line 28 in FIG. 1 and the reference numeral 28 in FIG. 3) is integrally formed on the upper portion of the lock portion 25, A plurality of locking recesses 28a having a triangular cross-section that can be engaged with the front end of the locking piece 27 are formed in a line above the front end of the band 28. The second member 20 and the lock portion 2
5, the locking piece 27, and the band 28 are also integrally formed of the same elastic synthetic resin as the first member 10 and the insertion anchor 15.

In the angle adjustable clamp of the above-described embodiment, the first tapered surface 10b of the first member 10 is attached to the second member 20.
The two members 10, 20 are rotated relative to each other about the common rotation axis O by contacting the second taper surface 21a of the member 10 with the band 28 with respect to the insertion anchor 15 at a desired angle. They are pressed against each other in the direction of the axis O. Then, the peripheral wall portion 20b is elastically deformed by the force acting between the tapered surfaces 10b and 21a to push the hook portion 21 apart, and the first member 10 is inserted into the peripheral wall portion 20b as shown in FIG. At the same time, the second projection 23 engages with the first projection 12, and the members 10 and 20 are restrained from rotating relative to each other. After the insertion, the elastic deformation of the peripheral wall portion 20b is restored,
The hooking portion 21 engages with a corner portion of the outer peripheral edge 10a opposite to the first tapered surface 10b to engage the first member 10 from the second member 20.
Of the band 2 against the insertion anchor 15 is blocked
An angle adjustable clamp having 8 as a desired angle is obtained.

As shown in FIG. 1, the angle adjustable clamp having the band 28 at a desired angle with respect to the insertion anchor 15 has the band 28 wound around the wire harness H and the tip thereof passed through the through hole 26. After pulling out and tightening, the wire harness H is held by locking the tip of the locking piece 27 in a suitable locking recess 28a to prevent the wire harness H from coming off. In this angle adjustable clamp, the claw portion 17 of the insertion anchor 15 is elastically deformed inward, and the long hole 9 of the bracket 9 attached to the body is similar to that of the prior art of FIG.
After being inserted into a, the elastic deformation of the claw portion 17 is restored to prevent the claw portion 17 from coming off, and the angle clamp is attached to the bracket 9 to hold the wire harness H in a desired direction.

The angle-adjustable clamp of the above-described embodiment is highly versatile in that the angle of the band 28 with respect to the insertion anchor 15 can be variously changed depending on the place of use. Thereby, the long hole 9 of the bracket 9
Even when the direction of the wire harness H in the holding part with respect to a is different, the wire harness H can be held by using the same angle adjustable type clamp, and thus the labor of selecting a clamp and inventory control can be reduced.

In the above-described embodiment, when the first member 10 and the second member 20 are engaged with each other, the end faces 11 and the inner end faces 22 which face each other in the axial direction are engaged with each other to form the two members 1.
The first projection 12 and the second projection 12 which restrain the relative rotation of 0 and 20
Protrusions 23 are provided so that both members 10,
20, the first projection 12 and the second projection 23 restrain the relative rotation at the end of the engagement from the rotation axis O direction,
Until then, relative rotation is possible. In this way both members 1
Since the relative rotation angles of 0 and 20 can be adjusted until just before the engagement is completed, it becomes easy to adjust the angle of the band 28 with respect to the fixed portion 15 to a desired angle. However, the present invention is not limited to this, and for example, the first protrusion and the second protrusion are provided at the portions of the members 10 and 20 that face each other in the radial direction, and the engagement of the members 10 and 20 on the rotation axis O is completed. It is also possible to implement the regulation so that the relative rotation is regulated for a long time.

In the above embodiment, the disk-shaped first member 10 and the bottomed cylindrical second member 20 are used, and the peripheral wall portion 20b of the second member 20 is provided with the first member 10 inside thereof. The hooking portion 21 that allows insertion but engages with the outer peripheral edge 10a of the first member 10 and restrains its disengagement is integrally formed. In this way, the hooking portion 21 is formed integrally with the second member 20. Since the hooked portion 21 thus formed serves as a member for restraining the detachment of the first member 10 from the second member 20, a separate member is not required for such restraint. Therefore, the number of parts decreases,
Further, the first member 10 is restrained from being detached only by inserting it inside the peripheral wall portion 20b of the second member 20, so that the assembling becomes easy. However, the present invention is not limited to this, and the separation of the first member 10 from the second member 20 may be restrained by a separate clip or the like.

Further, in the above embodiment, the hook portion 21 is used.
Is formed along the entire circumference of the tip edge of the peripheral wall portion 20b, and the peripheral wall portion 20b and the hook portion 21 are divided into a plurality in the circumferential direction by a plurality of slits 24 extending in the rotation axis O direction. Then, not only the thickness of the peripheral wall portion 20b but also the elasticity of the peripheral wall portion 20b provided with the hook portion 21 can be adjusted by changing the number of divisions.
It is possible to obtain an angleable clamp in which the first member 10 can be easily inserted and assembled into the second member 20 and the first member 10 can be reliably prevented from coming off. However, the present invention is not limited to this, and narrow catches are formed at a plurality of positions in the circumferential direction of the tip edge of the peripheral wall part 20b having no slit, or the peripheral wall part is provided at a plurality of positions in the circumferential direction. It may be carried out by forming a hooking portion on the tip edge as a narrow width provided only at the end.

In the embodiment described above, a large number of first projections 12 are formed on the first member 10, and the two second projections 12 are engaged with each other to restrain the relative rotation of the first and second members 10 and 20. Although the protrusions 23 are formed on the second member 20, on the contrary, a large number of the first protrusions 12 are formed on the second member 20, and the first member 1
Alternatively, two or a small number of the second protrusions 23 may be formed in 0. The present invention also includes a large number of first protrusions 12.
Alternatively, a large number of recesses may be formed, and the second protrusion 23 may be engaged with the recesses to restrain the relative rotation of the first and second members 10 and 20. The second protrusion 2
The number of 3 is not limited to two, but may be three or more, and may be the same as the number of the first projections 12 or the recesses that replace them. First
The distance between the end surface 11 of the member 10 and the bottom portion 20a of the second member 20 is larger than the height of each protrusion in the case of protrusions, but smaller than the height of the protrusion in the case of recesses and protrusions.

In the above-described embodiment, the first and second
Although the members 10 and 20 are engaged with each other so as not to rotate relative to each other and then attached to the bracket 9, the present invention attaches the first member 10 to the bracket 9 and holds the wire harness in the second member 20. It is also possible to carry out by engaging both members 10 and 20.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing the overall structure of an embodiment of an angle-adjustable clamp according to the present invention.

FIG. 2 is a top view of the first member of the embodiment shown in FIG. 1 viewed from the second member side.

FIG. 3 is a bottom view of the second member of the embodiment shown in FIG. 1 viewed from the first member side.

FIG. 4 is a partial enlarged cross-sectional view taken along line 4-4 of FIG.

FIG. 5 is a perspective view showing a clamp and a mounting structure thereof according to a conventional technique.

[Explanation of symbols]

10 ... 1st member, 11 ... End surface, 12 ... 1st protrusion, 15 ...
Fixed part (insertion anchor), 20 ... Second member, 20a ... Bottom part, 20b ... Peripheral wall part, 21 ... Hooking part, 22 ... End face (inner end face), 23 ... Second protrusion, 24 ... Slit, 28 ... Band, H ... Flexible member (wire harness), O ... Rotation axis.

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) F16L 3/137 H02G 1/06 501B H01B 13/00 513 3/26 H H02G 1/06 501 F16L 3/12 E 3 / 38 H02G 3/28 F F term (reference) 3H023 AA04 AA05 AB01 AC64 AD08 AD54 AE08 3J001 FA18 GA06 GB01 GC04 GC12 HA02 JB14 JC03 JC13 KA16 KA19 KB02 3J022 DA12 EA15 EB02 GB16B AFB FB28B45B06 FB28B45FB08 FB08FB05FB08 FB28FB05FB08FB05FB08 BA02 DA13 DA16 DC02

Claims (4)

[Claims] 1. A clamp comprising a band that wraps around an elongated flexible member such as a wire harness and holds the band, and a fixing part that attaches the band to a fixing part such as a body. Either of the fixing part and the band. The first member, one of which is fixed, and the second member, to which the other of the fixing portion and the band is fixed, can be engaged in the relative rotation angle about the common rotation axis from the same rotation axis direction. , Forming a large number of first protrusions or recesses on either one of the two members along the circumference centered on the rotation axis of the relative rotation,
A plurality of second projections are formed on the other of the two members to engage with the large number of first projections or recesses in a state where the two members are engaged with each other to restrain relative rotation of the both members. Free-angle clamp. 2. The angleable clamp according to claim 1, wherein the first member and the second member are respectively formed with end faces facing each other in the rotation axis direction in a state of being engaged with each other in the rotation axis direction, An angle-controllable clamp characterized in that the large number of first projections or recesses are formed on either one of the both end surfaces, and the plurality of second projections are formed on the other of the both end surfaces. 3. The angular clamp according to claim 2, wherein the first member has a disk shape, and the second member has a bottomed cylindrical shape having a bottom portion and a peripheral wall portion. Of the two members facing each other in the direction of the axis of rotation, integrally formed with a hooking portion that allows the insertion of the first member but engages the outer peripheral edge of the first member and restrains the disengagement of the first member. The end face is an inner end face of the bottom portion of the second member and an end face of the first member facing the inner end face of the bottom portion of the second member. 4. The angleable clamp according to claim 3, wherein the hooking portion is formed along the entire circumference of the tip edge of the peripheral wall portion, and the peripheral wall portion and the hooking portion are in the direction of the rotation axis. An angle-fixable clamp characterized by being divided into a plurality in the circumferential direction by a plurality of slits extending in the direction of.