JP2006193125A - Harness protective structure installed on steering member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve automation with relation to work of installing steering member installation component parts onto a steering member main body by almost permanently preventing defects due to friction peel of a wire harness without using a double-sided adhesive tape or the like, and eliminating manual work for eliminating a corner part at an edge part of the steering member installation component part. <P>SOLUTION: This harness protective structure is for preventing defects due to friction peel of the wire harness in the steering member installation component parts such as steering support brackets 3 and 3, car body installation brackets 4 and 4, other brackets 5 and 5, etc., in installing the wire harness 10 onto the steering member main body 2 by a lock member such as a clip 6. The edge part 7 facing the wire harness 10 is formed round or spherical as a no-angle form part 8 to be a defect preventing structure. The no-angle form part 8 is formed by laser welding in a case of installing the steering member installation component part onto the steering member main body 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wire harness protection structure attached to a steering member that supports a steering shaft for a vehicle such as an automobile.

  An instrument panel is provided in the front part of the vehicle interior, and a steering member for supporting the steering extends in the vehicle width direction inside the vehicle, and both ends of the steering member are attached to both sides of the vehicle body.

  Further, inside the instrument panel, a main case and a blower case of the air conditioning unit, a blow duct to the air outlet of the defroster and the like are further installed, and the air conditioning control operation unit is provided on the instrument panel itself. In addition, switches for various electric devices such as meters and meters are provided, and as a result, switches for various electric devices such as audio equipment and speed control devices are provided for the steering.

  Wiring to these various electrical components around the instrument panel and the steering is supported by the steering member as a wire harness that bundles them, and is led to the wiring destination.

Therefore, conventionally known steering members include a steering support bracket, a vehicle body mounting bracket for mounting a vehicle body, and other steering member mounting components such as other bracket parts formed on the steering member main body, such as arc welding or the like. They are fixed by electric welding, and are supported by attaching the wire harness to the steering member mounting component or the steering member main body itself by using a fastener such as a clip (Patent Document 1). reference).
JP 2001-18841 A.

  As described above, in the steering member that handles and supports the wire harness, in particular, the steering member mounting component is manufactured by press molding or the like, and the edge portion that has a corner portion by any means at the bent end portion or the like. Will be formed.

  Depending on the wiring harness, the edge portion formed in this manner is opposed to the wire harness, and may be lost by scraping the wire harness due to vibration or the like while the vehicle is running. There is a risk of missing parts.

  Therefore, the harness protector is wound around the wire harness so that the wire harness does not directly contact the corner of the edge portion of the steering member mounting component facing the wire harness. Cannot be provided at a portion where the wire harness branches into a plurality of wires.

  In order to solve such a problem, it is conceivable to bend the edge portion into a U shape or the like to eliminate the corner portion. In this case, however, the number of bending steps is increased and the material cost is increased.

  Further, in order to solve the above-mentioned problem, it is conceivable to chamfer the edge portion formed on the steering member mounting component part to form a cornerless shape portion with scissors or the like. Therefore, it will take time and effort.

  Therefore, conventionally, the edge portion e facing the wire harness d in the flange portion c formed upright by bending from the main body portion b of the other bracket part a shown in FIG. 6, for example, is made of a resin material such as urethane. The flat double-sided adhesive tape f is folded and affixed so as to have a cornerless shape, thereby providing a structure for preventing damage caused by scraping the wire harness d.

  However, the method of covering the edge portion e facing the wire harness d with the double-sided adhesive tape f also requires that the double-sided adhesive tape f be manually attached to the edge portion e, thereby reducing the number of manufacturing steps. In addition, the double-sided adhesive tape f may be weakened and peeled off due to changes in temperature and humidity due to long-term use, and further, the purpose of increasing the adhesive force before applying the double-sided adhesive tape f to the edge e. Therefore, it is necessary to degrease at least the vicinity of the edge portion e, which makes it difficult to reduce the manufacturing cost.

  Therefore, in view of such a point, the present invention provides a semi-permanent prevention of scraping due to scraping of the wire harness without using a double-sided adhesive tape or the like, and a hand for removing corners at the edge of the steering member mounting component. It is an object of the present invention to provide a harness protection structure attached to a steering member that can be automated by associating the operation of attaching a steering member mounting component to a steering member main body by eliminating the work.

  In order to achieve the above object, a harness protection structure attached to a steering member according to a first aspect of the present invention includes a steering member main body extending in the vehicle width direction, and a steering shaft attached to the steering member main body. A steering member is configured to have a steering member mounting component such as a steering support bracket to be supported or a vehicle body mounting bracket for mounting both ends of the steering member main body to both sides of the vehicle body, and a clip or the like is formed on the steering member. When the wire harness is attached by the engaging member, an edge portion facing the wire harness in the steering member mounting component is formed as a round or spherical cornerless shape portion, and the wire harness is rubbed off. Having a defect prevention structure It is an feature.

  According to such a configuration, since the edge portion facing the wire harness in the steering member mounting component is directly formed in a round or spherical shape without a corner, there is no need to use a conventional double-sided adhesive tape or the like. In addition, the function of preventing damage due to the wire harness rubbing can be achieved semi-permanently. Furthermore, the work of forming the edge portion into a round or spherical shape such as a cornerless shape can be performed by installing a steering member on the steering member body. It can be performed by using welding work for mounting parts, and automation can be achieved and reduction of work man-hours can be expected.

  The invention according to claim 2 is characterized in that the steering member mounting component is attached to the steering member main body by laser welding, and the cornerless shape portion is similarly formed by the laser welding. Is.

  With such a configuration, the angleless shape portion can be formed to the extent that the focal length of the laser beam is adjusted in association with the laser welding operation for mounting the steering member mounting component, and the assembly operation of the steering member is automated. In the case of forming a cornerless shape by laser welding work, for example, arc welding, which is conventionally performed by setting the focal length of the laser beam farther than the case of mounting a steering member mounting component, is possible. It is possible to prevent the edge part from being melted due to the large electric resistance in the electric welding, etc., and forming the cornerless shape part at the edge part, and further, the laser welding is performed by blowing argon gas or the like. In order to prevent damage due to scraping of the wire harness at the edge part It can be formed without corners shaped portion also suitable.

  In the present invention configured as described above, since the edge portion facing the wire harness in the steering member mounting component is directly formed into a round or spherical cornerless shape portion, a conventional double-sided adhesive tape or the like can be used. There is no need to use it, and the function of preventing damage due to the wire harness rubbing can be achieved semipermanently.Furthermore, the work of forming the edge portion into a round or spherical shape such as a round shape can be performed on the steering member body. This can be performed in connection with the welding operation for mounting the steering member mounting component parts, so that automation can be achieved and a reduction in work man-hours can be expected.

  Embodiments in the best mode for carrying out the present invention will be described below with reference to the drawings.

  First, in FIG. 1, a configuration when the wire harness 10 is attached to the steering member 1 will be described.

  The steering member 1 includes a steering member main body 2 extending in the vehicle width direction, steering support brackets 3 and 3 that are attached to the steering member main body 2 and support a steering shaft (not shown), and both ends of the steering member main body 2. A vehicle body mounting bracket 4, 4 or a steering member mounting component composed of other brackets 5, 5 for mounting on both side portions of a vehicle body (not shown) is provided.

  The steering support brackets 3 and 3, the vehicle body mounting brackets 4 and 4, or other brackets 5 and 5 are press-formed products, and their mounting end portions are respectively attached to predetermined portions of the steering member main body 2 by laser welding. .

  Further, the wire harness 10 is routed and supported by the steering member body 2 by inserting a leg portion of the clip 6 as an engaging tool into an attachment hole provided at a predetermined position of the steering member body 2.

  When the wire harness 10 is thus mounted on the steering member body 1 and routed to the wiring destination of various electrical switches, the wire harness 10 is connected to the steering support brackets 3, 3, the vehicle body mounting brackets 4, 4, or It will oppose the edge parts 7 ... of the other brackets 5 and 5 (refer to A, B and C circles in FIG. 1).

  Therefore, the edge portions 7... Are welded to the steering support brackets 3 and 3, the vehicle body mounting brackets 4 and 4 or other brackets 5 and 5 by laser welding, as shown in FIG. Among the other brackets 5, 5... (See the circle A shown in FIG. 1), the burr 7a formed at the time of press molding is removed and the end has a radius R as shown in FIG. A circular cornerless shape portion 8 or a spherical cornerless shape portion 8 having a radius R as shown in FIG. 5 is formed.

  When the edgeless shape portion 8 is formed on the edge portions 7, 7... By laser welding, the focal length of the laser beam is determined by the steering support brackets 3, 3, the body mounting brackets 4, 4 or other bracket members 5, 5. If it is set farther than it is welded to the steering member main body 2, it will prevent melting of the edge portion 7 ... that would inevitably occur in the case of electric welding such as arc welding, and has a predetermined shape. The cornerless shape portion 8 can be formed.

  In addition, when forming the cornerless shape portion 8 by laser welding, it is most suitable for preventing defects due to scraping of the wire harness to the edge portions 7, 7. The cornerless shape portion 8 can be formed.

  In addition, 9 is a harness protector wound around the wire harness 10, and one end side of the harness protector 9 in the wire harness 10 is branched into, for example, three, so that the harness protector 9 is extended to the branching portion 11. It cannot be present.

  Accordingly, the cornerless shape portion 8 formed on the edge portion 7 of the steering support brackets 3 and 3 fulfills a function of preventing loss due to the wire harness scraping.

  With this configuration, the edge portion 7 facing the wire harness 10 in the steering member mounting components such as the steering support brackets 3 and 3, the vehicle body mounting brackets 4 and 4, or other brackets 5 and 5 is directly rounded or rounded. Since the non-shaped portion 8 is formed, there is no need to use a double-sided adhesive tape f or the like as in the prior art, and the function of preventing damage due to the scraping of the wire harness 10 can be achieved semipermanently. 7 to form a round or spherical shape with no corners 8, a steering member mounting structure such as a steering support bracket 3, 3, a body mounting bracket 4, 4 or other brackets 5, 5, etc. It can be done using welding work to install the parts, Reduce the work of man-hours can be expected.

  Furthermore, the formation of the cornerless shape portion 8 is related to the laser beam welding operation for mounting the steering member mounting components such as the steering support bracket 3, the vehicle body mounting bracket 4, 4 or other brackets 5, 5. Since it can be performed by adjusting the focal length, automation of the assembly operation of the steering member 1 can be achieved.

  As described above, according to the present invention, since the edge portion facing the wire harness in the steering member mounting component is directly formed into a round or spherical non-cornered shape portion, a conventional double-sided adhesive tape or the like can be used. There is no need to use it, and the function of preventing damage due to scraping of the wire harness can be achieved semi-permanently. Further, the operation of forming the edge part into a round or spherical shape such as a round shape can be performed on the steering member. Steering member that supports a steering shaft for a vehicle such as an automobile because it can be performed in association with a welding operation for mounting a member mounting component, and automation can be achieved and a reduction in work man-hours can be expected. It is suitable for the wire harness protection structure attached to the.

It is the perspective view which drawn the state which mounted | wore the steering member which employ | adopted the Example in this invention with the wire harness. It is the perspective view which expanded and drawn the inside of A circle in FIG. It is the longitudinal cross-sectional view which drawn only the edge part as it was in the press molding state in the other bracket shown in FIG. Similarly, it is the longitudinal cross-sectional view which drawn only the edge part after forming the cornerless shape part as one Example. Similarly, it is the longitudinal cross-sectional view which only drawn the edge part after forming the cornerless shape part as another Example. It is the perspective view which expanded and drawn the site | part corresponded in A circle of FIG. 1 by the prior art.

Explanation of symbols

1 Steering Member 2 Steering Member Body 3 Steering Support Bracket (Steering Member Mounting Component)
4 Car body mounting bracket (steering member mounting component)
5 Other brackets (steering member mounting components)
7 Edge part 8 Cornerless shape part 9 Harness protector 10 Wire harness

Claims (2)

Steering member main body extending in the vehicle width direction, a steering support bracket attached to the steering member main body and supporting a steering shaft, or a vehicle body mounting bracket for attaching both ends of the steering member main body to both sides of the vehicle body, etc. The steering member mounting component, and when the wire harness is attached to the steering member by means of a clip or the like, the edge portion of the steering member mounting component facing the wire harness A harness protection structure attached to a steering member, wherein the structure is formed in a round or spherical shape with no corners to prevent the wire harness from being damaged. 2. The steering member mounting component according to claim 1, wherein the steering member mounting component is mounted on the steering member main body by laser welding, and the cornerless shape portion is similarly formed by the laser welding. Harness protection structure.

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