JP2001224118A - Clamp and fixing structure of armored tube using clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of man-hours for assembling work by using a clamp to fix the armored tube of a wiring harness. SOLUTION: A cover 13, having a concavity 13b, is coupled with a base 11 that has a recessed portion 11a for external fitting and is integrally provided with a sliding portion 14 via a thin hinge portion 12 to form a clip 10. Projections 11b and 13e are formed on the surfaces of the recessed portion 11a and the concavity 13b. The clip 10 is fit externally onto an armored tube installed on a group of electrical wires comprising a wiring harness for slide doors through the recessed portion 11a, locks and anchors the external sheath tube by the cover 13 placed thereon, clamps the armored tube by making the projections 11b and 13e cut into the armored tube, and positions and secures the armored tube relative to the group of the electrical wires.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clamp of a wire harness for a sliding door and a fixing structure of an outer tube by the clamp, and more particularly, to a wire group forming a wire harness by a clamp for fixing a wire harness or for moving a slide. The purpose is to fix the position of the outer tube attached to the outer tube.

[0002]

2. Description of the Related Art A wire harness for a sliding door of an automobile is provided with a U-shaped bent portion which follows the sliding of the door. A flat cable is used at the bent portion, or an outer tube for maintaining the bent portion. Ordinary electric wire attached with may be used. Various protective tubes are attached to the ends of the wire harness and the like, and various clips are also attached to support bending maintenance and sliding movement.

FIG. 6A shows the components of a conventional wire harness W / H for a sliding door. A flat cable FC is used at a central portion where a bending portion is formed, and a plurality of normal cables are used at both ends. The flat cable FC and the wires d1 and d2 are connected to the connector C-1,
They are connected by C-2. Further, resin tubes 2 such as PVC and PVC and a corrugated tube 3 are attached to the electric wires d1 and d2 as exterior tubes for protecting the electric wires, respectively. Furthermore, connectors 4-1 and 4-2 are attached to the ends of the electric wires d1 and d2 via terminals, and a clip 5 for maintaining the bending of the harness is attached near the end of the resin tube 2 and used for sliding movement. Is attached to the connector C-2 via the holder 7.

[0006] In addition to the above, a wire harness for a sliding door is shown in FIG.
3, a flexible and stretchable mesh tube 2 made by braiding a resin thread such as nylon or PET into a cylindrical shape as an exterior tube at the corresponding bending position, and attaching the resin tube 2 and the corrugated tube 3 to both ends. There is also a wire harness W / H 'for a sliding door fitted with a.

[0005] The wire harness W / H (W / H ')
Are housed in a case 1 attached to the lower part of the sliding door S of the automobile as shown in FIG. Case 1
Has a slit-shaped rail groove 1a continuously from one end to the other end on the lower surface, and has a honeys fixing hole 1b and a harness insertion hole 1c on the upper surface. Wire harness W /
H is stored in the case 1 in a bent state in a U-shape, slides through the rail groove 1a through the slider 6, inserts and locks the clip 5 in the harness fixing hole 1b, and slides while maintaining the bent state. Allows movement.

[0006]

Since the sliding door wire harness W / H (W / H ') is assembled by mounting a number of parts, it takes time and effort to mount and fix various parts. is there. For example, as shown in FIG. 8 (A), after the resin tube 2 is packaged in a wire group consisting of a plurality of wires d1, a tape T is attached to one end 2a of the resin tube 2 in order to fix the resin tube 2 so as not to be displaced. Need to be wound. Also, as shown in FIG. 8B, when attaching the clip 5 to the electric wire d1 near the other end of the resin tube 2, the tape T is attached to the base plate 5a of the clip 5.
Is fixed by winding. Further, as shown in FIG. 8C, when attaching the slider 6, the holder 7
Therefore, there is a problem that the number of parts is increased and the assembling man-hour is required.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to reduce the number of work steps by reducing the time and effort required for tape winding and the like for mounting various components in assembling a wire harness. I have.

[0008]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention relates to a clamp for attaching an outer tube to a group of electric wires and externally fitting the outer tube to a wire harness for a slide door housed in a slide door case. A slide part for sliding movement passing through the rail groove of the case is integrally provided with a base having a concave part for external fitting, and a cover covering the concave part is connected with a thin hinge part, while the base part and the cover are connected to each other. A locking portion for locking and a locked portion are provided, respectively, and the concave portion of the base is externally fitted to the wire harness for the sliding door, and the cover is locked on the base by locking, and the sliding portion slides with the rail groove of the sliding portion. The clamp is characterized in that the wire harness is slidable by movement.

As described above, if the slide portion is provided integrally with the clamp attached to the wire harness, the slide portion is also attached to the wire harness just by attaching the clamp, so that the slider is bolted via the holder as in the conventional case. This eliminates the need for a step to perform, thus reducing the number of work steps.

The cover is provided with a concave portion at a position facing the concave portion when the cover is put on the base portion, and the concave portion and the concave portion form an external fitting portion for externally fitting the wire harness. When the outer fitting portion is formed in this manner, the number of contact points with the wire harness increases, and the mounting and locking force of the clamp also improves.

Further, either one of the surface of the concave portion of the base or the portion facing the concave portion of the cover, or
Projections may be made to protrude from both the surface of the concave portion of the base and the portion of the cover facing the concave portion, so that the projection is hardly inserted into the wire harness when externally fitted. Further, an elastic sheet is attached to either the concave surface of the base or the position facing the concave portion of the cover, or both the surface of the concave portion of the base and the position facing the concave portion of the cover. The elastic sheet may be brought into close contact with the wire harness. When the projections are provided or the elastic sheet is attached in this manner, the mounting and locking force of the clamp can be further improved.

In addition, the shape of the external fitting portion formed by the concave portion and the concave portion may be made to match the cross-sectional shape of the electric wire group. When the shapes are matched in this way, the locking of the clamp can be more reliably performed. The outer fitting portion is, for example, an ellipse if the cross section of the wire group is elliptical, and a circle if the cross section is circular, and a case where the number of wires constituting the wire group is small and each wire is arranged in parallel. In such a case, the number of external fitting portions corresponding to the cross-sectional shape of each electric wire of the electric wire group may be provided as many as the number of electric wires. Further, in the clamp, it is not necessary to make the shape of the outer fitting portion the same in the entire width of the clamp.For example, the outer fitting portion has an elliptical shape on one side and the outer fitting portion corresponding to the wire diameter on the other side has the number of wires. The same number may be provided. In this way, the state can be changed to a state where the electric wires are bundled before and after the clamp and a state where the electric wires are arranged in parallel.

[0013] Further, the present invention provides that the concave portion of the clamp is externally fitted to an outer tube attached to the wire group,
By fixing the cover to the base and locking the cover, the clamp is attached to the wire harness, and at the same time, the outer tube is clamped by the clamp and positioned and fixed to the wire group. providing.

The clamp has a clamping force by the base and the cover to be locked and locked by the concave portion of the base and the cover and attached to the wire harness, and the clamping force is used to position and fix the outer tube attached to the wire group. can do. That is, since the outer tube is clamped by the clamp by externally fitting the clamp from above the outer tube, the mounting position is fixed, so that the conventional tape winding process of the end portion can be omitted, The labor required for manufacturing can be reduced, and the product cost can be reduced.

If a clamp having projections, an elastic sheet attached thereto, or a wire that matches the cross-sectional shape of the electric wire group is used as the applied clamp, the force with which the outer tube is clamped by the electric wire group also increases. The position can be fixed more firmly. For example, in the case where the projection is provided, the projection can be securely fixed to the surface of the outer tube, and when the elastic sheet is attached, the elastic sheet can be securely fixed to the outer tube in close contact with the outer tube.

As described above, since the clamp is positioned and fixed by sandwiching the outer tube, the mounting position of the clamp is not limited to the end of the tube as in the case of the conventional tape winding, but is optimal according to the form of the harness. Can be attached to the place. In addition, when the overall length of the outer tube is long or when the mounting and fixing are more secure, a plurality of clamps may be attached.In this case, a clamp provided with a projection or a clamp attached with an elastic sheet may be mixed. If it is desired to further enhance the positioning fixing force, conventional tape winding may be used together.

Further, the present invention provides a structure for mounting and fixing an exterior tube attached to a wire group constituting a wire harness for a slide door housed in a case of a slide door, wherein the base has a concave portion for external fitting to the case. A clip provided integrally with the fixing cover and connecting the cover covering the concave portion with a thin hinge portion, and a clamp provided with a locking portion and a locked portion on the base portion and the cover, respectively. By providing an outer tube fixing structure, the outer tube is sandwiched and fixedly positioned with respect to the electric wire group by being externally fitted to the tube with a concave portion and locking the cover by covering the base with the base. I have.

As described above, when the clamp in which the clip is integrally provided instead of the slide portion is externally fitted to the outer tube and attached to the wire harness, the outer tube is positioned and fixed simultaneously with the attachment of the clamp itself. By omitting it, workability can be improved and product cost can be reduced. In addition, the above clamp with clip,
Similarly to the clamp having the slide portion, a type including a protrusion, an elastic sheet, and the like may be used.

[0019]

Embodiments of the present invention will be described below with reference to the drawings. The same members and the like as those in the related art are denoted by the same reference numerals as those in the related art. FIG. 1A shows a clamp 10 attached to a slide door harness according to a first embodiment of the present invention, in which a base 11 having a semicircular concave portion 11a for external fitting to a group of electric wires is flexible. The cover 13 that covers the recess 11a is provided integrally with the thin hinge portion 12 having At the lower end of the base 11, a slide portion 14 for attachment to the rail groove 1a of the case 1 attached to the slide door S is provided integrally and continuously.

On the surface of the concave portion 11a of the base 11, 3
The protrusions 11b are provided at substantially the same intervals in the row. The tip of the projection 11b has a gentle shape so as not to damage the electric wire or the like. Also, an end 11d of the hinge 12 opposite to the connection side.
Is provided with a locked portion 11c for locking the cover 13.

On the other hand, the cover 13 is provided with a semicircular recess 13b on the surface 13a facing the recess 11a when the cover 13 is put on the base 11, and the recess 13b is also provided with three rows of substantially equal intervals. Is provided with a projection 13e. Further, a lock portion 13c is provided at an end portion 13d of the hinge portion 12 opposite to the connection side. When the cover 13 is put on the base 11 and locked, the concave portion 11a of the base and the concave portion 1
A substantially circular portion formed by 3b is an outer fitting portion 10a. The inner diameter of the outer fitting portion 10a is preferably equal to or smaller than the wire harness diameter of the portion where the outer tube to be attached is attached, and at least the tip of the projection 11b of the concave portion 11a and the projection 13e of the concave portion 13b. The diameter of the formed virtual circle is set to be smaller than the wire harness diameter.

Further, the slide portion 14 includes an upper and lower portion 14.
A long end of each of the a and b protrudes, and a central portion 14c serves as a sliding portion 14c that passes through the rail groove 1a. Also, the upper 1
From the upper surface of 4a to the lower surface of lower portion 14b, an electric wire insertion hole 14d communicating therewith is also drilled.

FIG. 1B shows a clamp 10 ′ of a modification of the clamp 10, in which a clip portion 15 ′ is provided instead of the slide portion 14. Clip part 1
5 'is a wing portion 15a' fitted into the fixing hole 1b of the case 1.
And the configuration is the same as that of the clamp 10 except for the clip portion 15 ′.

Note that the clamp of the first embodiment is not limited to the above-described embodiment, and the number of projections may be increased or decreased as appropriate, and the dimensions of each portion such as the width of the base and the cover may be changed.
It may be changed appropriately according to the wire harness to be attached. Also, other than the protrusion, a groove-shaped uneven portion or the like orthogonal to the axial direction may be formed.When the inner diameter of the outer fitting portion is set smaller than the outer diameter of the wire harness, the protrusion is particularly formed. It is not necessary to provide it. Further, FIG.
As shown in a clamp 10 "shown in FIG. 3C, the concave portion 11a" of the base 11 "is formed in a substantially circular shape, and the cover 13" is formed.
Is provided with a flat surface 13a ″ without a concave portion, and the concave portion 11
The projection 13e ″ to be inserted into the flat surface 13
a ".

The attachment of the clamp 10 (10 ', 10 ") to the wiring harness for a sliding door is shown in FIG.
A description will be given of a wire harness W / H ′ including a continuous electric wire d3 shown in FIG. First, a concave portion 11 of the base 11 of the clamp 10 is provided at a place where the corrugated tube 3 and the mesh tube 9 are attached as the outer tubes and where the ends of these tubes are abutted.
a is fitted to the end 9a of the mesh tube 9 and the end 3a of the corrugated tube 3. Next, the cover 10 is put on and the lock 10 is locked and the clamp 10 is attached.

FIG. 2 shows a state in which the clamp 10 is mounted. The projections 11b and 13e standing up from the concave portion 11a and the concave portion 13b enter the concave portion 3b of the corrugated tube 3 and are externally fitted to the corrugated tube 3. Part 10a
Is smaller than the diameter of the harness, so it is pushed into the tube surface and pressed against the electric wire inside the tube. Therefore, the corrugated tube 3 is sandwiched between the base 11 of the clamp 10 and the cover 13, and the position in the axial direction is firmly fixed.

On the other hand, the recess 11
a and the projections 11b and 13e standing up from the recessed portion 13b are inserted into the mesh tube 9b of the mesh tube 9 so as to fit into the mesh 9b, and the outer fitting portion 10a is smaller than the harness diameter. I'm pushing. Therefore,
The mesh tube 9 also includes the base 11 of the clamp 10 and the cover 13.
, And the position in the axial direction is firmly fixed.

Even if the clamp 10 'is attached to the place where the mesh tube 9 and the resin tube 2 abut, the tubes can be positioned and fixed in the same manner as described above. That is, also on the resin tube 2, the protrusions 11b and 13e standing upright from the concave portion 11a and the concave portion 13b penetrate into the tube surface, and the resin tube 2 itself is pressed against the electric wire in the tube to be positioned and fixed. The wire harness W / H 'assembled in this manner is accommodated in the case 1 of FIG. 7, and the slider portion 14 of the clamp 10 is passed through the rail groove 1a, and the clip 15' of the clamp 10 'is inserted into the harness fixing hole 1b. After locking, each end of the wire harness W / H 'is led out of the case through the wire insertion hole 14d and the harness insertion hole 1c of the case 1, and the wire harness W / H'
Are bent in a U-shape to allow sliding movement.

When the ends of the outer tubes are fixed by one clamp as described above, the positioning and fixing of the outer tubes can be performed efficiently, the tape winding step and the slider mounting step can be omitted, and the number of assembling steps can be reduced and the cost can be reduced. Has also been reduced. The mounting of the clamp is not limited to the above-described embodiment, and a clamp may be mounted and fixed for each of the resin tube 2, the corrugated tube 3, and the net tube 9, for example, when the entire length of the honeys is long. May mount more clamps.

FIG. 3A shows a clamp 2 according to the second embodiment.
In the clamp 10 of the first embodiment, the elastic sheet 26 is attached to the surfaces of the concave portions 21a and the concave portions 23b instead of providing the protrusions in the concave portions and the concave portions. The elastic sheet 26 is formed of an elastic material made of rubber, resin, or the like having a large surface friction coefficient, and is attached with an adhesive. The thickness of the elastic sheet 26 is set so that the inner diameter of the outer fitting portion 20a to which the elastic sheet 26 is attached is smaller than the diameter of the wire harness to be externally fitted. The other portions have the same configuration as the clamps 10, 10 'and the like of the first embodiment, and a slide portion or a clip is integrally provided on the base 21.

The attachment of the clamp 20 to the slide door wire harness W / H 'is the same as that of the first embodiment, and FIG. 3B shows a state where the mesh tube 9 and the resin tube 2 meet. 3 shows a mounting state of the clamp 20. Since the inner diameter of the outer fitting portion 20a is smaller than the outer dimensions of the wire harness with respect to the resin tube 2, the elastic sheet 26 is compressed and the resin tube 2 is pressed against the electric wire in the tube in a state where the resin tube 2 is in close contact. ing. Therefore, the resin tube 2 is sandwiched between the base 21 of the clamp 20 and the cover 23, and the position in the axial direction is firmly fixed.

The above-described holding is the same for the mesh tube 9 and the corrugated tube 3 (not shown).
Again, the elastic sheet 26 closely contacts and fixes the tube itself against the electric wire. The case where a plurality of clamps 20 are attached, the accommodation in the case after the completion of the wire harness assembly, and the like are the same as in the first embodiment.

FIG. 4 shows a clamp 30 according to the third embodiment. The basic structure consisting of a base and a cover is the same as that of the clamp 10 and the like of the first embodiment, but a cover 33 is put on the base 31. At this time, the shape of the outer fitting portion 30a formed by the concave portion 31a and the concave portion 33b matches the cross-sectional shape of the electric wire group D constituting the wire harness W / H '. In the present embodiment, since the electric wire group D is formed by four electric wires d3, the cross-sectional shape becomes an elliptical shape which spreads laterally, so that the concave portions 31a and the concave portions are formed so that the shape of the outer fitting portion 30a also becomes elliptical. The shape of the portion 33b is formed. The inner dimensions of the outer fitting portion 30a are determined by the wire harness W /
It is set smaller than the outer shape of H ′ so that it can be securely fixed without any gap between the clamp and the wire harness W / H ′ when externally fitted.

Also, projections may be provided on the surfaces of the concave portions 31a and the concave portions 33b in the same manner as the clamp 10 and the like in the first embodiment. You may paste it. The formation of the slide portion and the clip and the accommodation in the case 1 are the same as those in the first embodiment.

FIGS. 5A and 5B show a clamp 40 according to the fourth embodiment. The basic structure consisting of a base and a cover is the same as that of the clamp 10 and the like in the first embodiment. The shape of the outer fitting portion 40a formed by the recess 43b is different between the one side surface 40b side and the other side surface 40c side. The shape of the outer fitting portion 40a-1 on the one side surface 40b side is formed in an elliptical shape in accordance with the cross-sectional shape of the wire group of the wire harness W / H ', similarly to the third embodiment. on the other hand,
The shape of the outer fitting portion 40a-2 on the other side surface 40c side forms an outer fitting portion for each electric wire of the electric wire group. Therefore, in this embodiment, since the electric wire group consisting of four electric wires is to be attached, the outer fitting portion 40a-2 has four grooves 40d corresponding to the electric wire diameter.
Are formed in the concave portion 41a and the concave portion 43b.

The outer fitting portion 40a-1 on one side surface 40b side.
The protrusions may be provided on the surfaces of the concave portion 41a and the concave portion 43b or an elastic sheet may be attached in the same manner as in the third embodiment, and the formation of the slide portion, the clip, and the like is also the same as in the first embodiment. is there.

FIG. 5C shows a state in which the clamp 40 is externally fitted to the wire harness W / H '. One side 40
On the b side, the outer fitting portion 40a-1 sandwiches and positions and fixes the resin tube 2, and on the other side surface 40c side, the outer fitting portion 40a-2 externally fits each electric wire d3 in the groove 40d, and The electric wires d3 are respectively arranged in parallel. Therefore, when the clamp 40 is used, the positioning and fixing of the outer tube and the parallel arrangement of each wire of the wire group can be performed at the same time. In addition,
The housing in the case 1 after the completion of the wire harness assembly is the same as in the first embodiment.

[0038]

As is clear from the above description, when the clamp of the present invention is used, the outer tube attached to the electric wire group constituting the wire harness can be positioned and fixed without using a tape by external fitting of the clamp. The number of assembling steps can be simplified and the manufacturing cost can be reduced. Further, by providing a projection in a concave portion or the like of the clamp or attaching an elastic material sheet, the force for maintaining and fixing the tube can be further enhanced, and the tube can be securely attached and fixed in correspondence with various types of exterior tubes. Furthermore, when the shape of the outer fitting portion formed by the concave portion and the concave portion of the clamp is made different at both sides, the fixing of the outer tube and the parallel arrangement of each wire of the wire group can be performed at the same time.

[Brief description of the drawings]

FIG. 1 is a clamp according to a first embodiment of the present invention,
(A) is a perspective view, (B) is a front view of a modification, and (C) is a front view of another modification.

FIG. 2 is a schematic view showing a fixing structure of an outer tube by a clamp of the present invention.

FIG. 3A is a front view of a clamp according to a second embodiment of the present invention, and FIG. 3B is a schematic view showing a fixing structure of an outer tube by the clamp.

FIG. 4 is a schematic view showing a clamp according to a third embodiment of the present invention.

FIG. 5 is a clamp according to a fourth embodiment of the present invention,
(A) is a perspective view, (B) is a front view, and (C) is a schematic diagram showing a state where the clamp is attached to a wire harness.

FIG. 6 is a wiring harness for a sliding door,
(A) is a schematic diagram of a wire harness using a flat cable, and (B) is a schematic diagram of a flat cable using a continuous electric wire.

FIG. 7 is a schematic perspective view showing a state where the wire harness is housed in the slide door.

FIGS. 8A, 8B, and 8C are schematic diagrams showing conventional problems in assembling a wire harness for a sliding door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Clamp 10a External fitting part 11 Base 11a Depression 11b Projection 12 Thin hinge part 13 Cover 13b Depression 13e Projection 14 Slide part

Claims (7)

[Claims] 1. A clamp for attaching an outer tube to an electric wire group and externally fitting to a slide door wire harness accommodated in a slide door case, wherein a base groove having an external fitting recess is provided on a rail groove of the case. And a cover for covering the concave portion is connected by a thin hinge portion, and a locking portion for locking and a locked portion are provided on the base portion and the cover, respectively. And the cover is covered and locked with the base, and the wire harness is slidable by sliding with the rail groove of the slide portion. To clamp. 2. The cover according to claim 1, wherein a concave portion is provided at a position facing the concave portion when the cover is placed on the base portion, and an external fitting portion for externally fitting the wire harness with the concave portion and the concave portion is formed. The clamp according to. 3. A projection is protruded from either the surface of the concave portion of the base or the position facing the concave portion of the cover, or both the surface of the concave portion of the base and the position facing the concave portion of the cover, and The clamp according to claim 1 or 2, wherein the projection is configured to be inserted into the wire harness when fitted. 4. An elastic sheet is stuck on one of the surface of the concave portion of the base and the portion of the cover facing the concave portion, or on both the surface of the concave portion of the base and the portion of the cover facing the concave portion, The clamp according to any one of claims 1 to 3, wherein the elastic sheet is brought into close contact with the wire harness at the time of external fitting. 5. The clamp according to claim 2, wherein the shape of the outer fitting portion formed by the concave portion and the concave portion matches the cross-sectional shape of the electric wire group. . 6. The method according to claim 1, wherein:
Attach the clamp to the wire harness by simultaneously fitting the concave part of the clamp to the outer tube attached to the wire group, and covering the base with the cover to lock and lock the outer tube. A fixing structure for the outer tube, wherein the outer tube is positioned and fixed to the electric wire group. 7. A fixing structure for mounting an exterior tube attached to a wire group constituting a wire harness for a slide door housed in a slide door case, wherein a base having a recess for external fitting has a base for fixing to the case. While the clip is integrally provided and the cover that covers the concave portion is connected by the thin hinge portion, the clamp provided with the locking portion and the locked portion for locking on the base portion and the cover is provided with the concave portion on the outer tube. A fixing structure for an exterior tube, wherein the exterior tube is sandwiched and locked by being covered with the base portion so that the exterior tube is sandwiched and positioned and fixed to a group of electric wires.