JP2006025515A - Protector for wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a protector for a wire harness which obtains a weight reduction and an insurance on the strength effectively. <P>SOLUTION: The protector 1 for the wire harness includes the protector body 2 of a recess cross section to which the wire harness is threaded, and a lid 3 which couples with the protector body 2. In the external surface of the protector body 2 and/or the lid 3, thinned parts 4 and 5, such as grooves, are provided in the flat surface part except the part becoming a crest 6 and a valley 7 of the outer surface shape in the outer surface of the protector body 2 and/or the lid 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a protector for a wire harness, and more particularly to a protector for a wire harness that can effectively reduce the weight and ensure the strength.

  Conventionally, protectors that are resin molded products have been used for wire harnesses routed in automobiles for the purpose of protecting wire harnesses from external interference materials and regulating the wiring line of wire harnesses. A wire harness is inserted into the protector and assembled to the body after being assembled. As shown in FIG. 4, the shape of such a wire harness protector is generally a type in which the lid body 22 is lock-coupled after inserting the wire harness into the protector body 21 having a concave cross section, and the material is PP or the like. The resin is manufactured by injection molding.

JP-A-7-80968

  Considering environmental protection is also an issue in the automobile industry, so weight reduction is becoming an important theme for each component mounted on the vehicle. A protector for a wire harness is important as a harness component, but it is one of the causes of an increase in weight. To make this protector lighter, methods such as downsizing and thinning can be considered, but the size of the protector depends on the harness diameter and the shape of the vehicle, making it difficult to reduce the size, and thinning is lightweight. There is a problem that the harness protection is affected by the lack of strength due to the thinning, although it is effective in reducing the thickness.

  Therefore, the problem to be solved by the present invention is to provide a protector for a wire harness that can effectively reduce the weight and ensure the strength.

  In order to solve the above-mentioned problems, a protector for a wire harness according to the present invention is a protector for a wire harness comprising a protector main body having a concave cross section through which the wire harness is inserted and a lid body that is lock-coupled to the protector main body. The gist of the present invention is that, on the outer surface of the main body and / or the lid body, a hollow portion such as a groove is provided in a planar portion other than the portion that becomes the peak and valley of the outer surface shape.

  In this case, it is preferable that at least a planar portion serving as an attachment portion to another member is not provided with the above-described thinning portion.

  According to the protector for a wire harness having the above-described configuration, the outer surface shape peak and the protector main body having a concave cross section through which the wire harness is inserted and the outer surface of the protector main body or the lid that is locked to the protector main body. Since the flat part other than the part that becomes the valley has a structure with a hollow part such as a groove, the harness located on the inner surface of the protector is not damaged, and the weight can be reduced by the amount of meat extracted from the outer surface. Is to secure strength by not providing a hollow portion in the outer shape peak and trough, for wire harnesses that can effectively reduce weight and secure strength and also do not deteriorate harness protection performance It is a protector.

  In this case, at least a planar portion serving as a mounting portion to another member is not provided with the above-described thinning portion, for example, a wire harness protector that is directly attached to an engine, and the mounting portion includes a thinning portion. By not providing, it is possible to ensure the same harness protection performance as that of the prior art.

  Embodiments of a wire harness protector according to the present invention will be described below with reference to FIGS. Drawing 1 is a figure showing the schematic structure of the protector for wire harnesses concerning one embodiment of the present invention.

  As shown in the figure, the wire harness protector 1 includes a protector body 2 that houses a wire harness (not shown) that is routed in an automobile, and a lid 3 that closes an upper opening 2 a of the protector 2.

  The protector main body 2 has a concave cross section formed by a bottom wall 2b and both side walls 2c, 2c, and an internal space surrounded by the bottom wall 2b and both side walls 2c, 2c serves as an insertion portion for the wire harness and is bent from an intermediate position. It has a different shape. A lock frame 2d for inserting and locking the lock piece 3c of the lid 3 projects from the front and back outer surfaces of the side walls 2c, 2c.

  The lid 3 that closes the upper opening 2a of the protector body 2 has a flat plate shape made of an upper wall 3a. A piece 3c is projected.

  On the outer surface of the wall of such a wire harness protector 1, as shown in the figure, there are the lightening portions 4 and 5 formed of a plurality of grooves extending obliquely with respect to the length direction of the protector, Each is formed on the lid 3.

  In order to reduce the weight without changing the strength of the lightening portions 4 and 5 by providing a certain lightening portion, rather than simply reducing the thickness of the side wall or the like when the wire harness protector 1 is lightened. belongs to.

  In this case, if the punching that penetrates the wall of the protector is performed, there is a possibility of rubbing with the internal wire harness at that point, so that the punching portions 4 and 5 do not reach the inner surface as shown in FIG. The inner surface has a conventional surface configuration.

  In the outer surface of the upper wall 3a of the lid 3, that is, on the upper surface, the lightening portions 5 are provided over the entire surface, but the lightening portions 4 formed on the outer surfaces of the side walls 2c of the protector body 2 are In the outer surface shape of the both side walls 2c, it is provided in flat surface parts 8a, 8b, 8c other than the parts that become the ridges 6 and the valleys 7 formed along with the bending. Moreover, the ridgeline part 9 by the bottom wall 2b and the side walls 2c and 2c is not provided with the thinning part. The reason why the lightening is not provided at the end of the surface is to prevent the strength from being lowered.

  Further, the outer surface, that is, the lower surface of the bottom wall 2b of the protector body 2 is a surface having a function as an attachment portion to other members such as a vehicle body and an engine. The thinned portion 4 is not formed. In particular, it is better not to provide a lightening portion in the flat part of the protector wall where it is important to protect the internal wire harness, such as when it is attached to the engine, and to have a conventional surface configuration.

  FIG. 3 shows a modification of the above-described thinned portion comprising a plurality of grooves, wherein (a) is a lightened portion 10 in which the groove extends perpendicularly to the length direction of the protector 1, and (b) A hollow portion 11 in which the groove extends parallel to the length direction of the protector 1, (c) is a lattice-shaped hollow portion 12 formed by a groove extending in parallel with the groove extending perpendicularly to the length direction of the protector 1, ( d) is a thinned portion 13 where grooves inclined in opposite directions to the length direction of the protector 1 intersect.

  As described above, according to the protector for a wire harness according to the present invention, the weight can be reduced without being influenced by the vehicle requirements and the wire harness specifications, and the weight can be reduced without changing the strength. Moreover, since it is not the structure with a thinning which penetrated the wall of the protector, the wire harness protection to be accommodated has a conventional performance.

  In addition, this invention is not limited to such an Example at all, Of course, it can implement with a various aspect in the range which does not deviate from the summary of this invention. The pattern of the lightening shown in the embodiment is an example, and the protector of the embodiment is a box shape, but the shape is not limited to this.

It is the figure which showed schematic structure of the protector for wire harnesses which concerns on embodiment of this invention. It is the figure which showed the cross section of the protector of FIG. It is the figure which showed the modification of the thinning part which consists of several groove | channels provided in a protector. It is the figure which showed schematic structure of the protector for wire harnesses conventionally used.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire harness protector 2 Protector main body 2a Upper opening part 2b Bottom wall 2c Side wall 2d Lock frame 3 Lid 3a Top wall 3c Lock piece 4, 5 Thickening part 6 Peak part 7 Valley part 8a, 8b, 8c Plane part 9 Ridge line 10 to 13 Meat extraction part 21 Protector body 22 Lid

Claims (2)

  A protector for a wire harness comprising a protector body having a concave cross-section through which a wire harness is inserted and a lid body that is locked to the protector body, wherein the outer surface of the protector body and / or the lid body has a peak in the outer surface shape. A wire harness protector, wherein a planar portion other than a portion to be a valley is provided with a hollow portion such as a groove.   The protector for a wire harness according to claim 1, wherein the thinned portion is not provided at least in a planar portion serving as a mounting portion to another member.

Images