JP2017159842A - Steering member device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of man-hours of layout design of a mounting component fitting bracket with respect to a steering member body and suppress increases in the weight and cost of an automobile by allowing a mounting component to be directly mounted to the steering member body without using the mounting component fitting bracket as much as possible.SOLUTION: A steering member body 1 is provided with fitting bolt insertion holes 11, 14. Fitting bolts 8, 9 for mounting one mounting component such as a steering column shaft 7 and an air bag device 10 to the steering member body 1 are inserted into the fitting bolt insertion holes 11, 14 so that screw shaft parts 8a, 9a protrude and extend outward of the steering member body 1. Head parts 8b, 9b of the fitting bolts 8, 9 located inside the steering member body 1 are fixed to the fitting bolt insertion holes 11, 14 by caulking.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a steering member device that supports a steering mechanism configured to control steering control of an automobile.

  For example, as shown in FIG. 6, a steering member device in a conventional automobile extends in the vehicle width direction through a pair of side brackets b and b each having a steering member main body a attached to both outer ends in the vehicle width direction. And a steering column bracket c and a post bracket d for mounting a steering column at an intermediate portion between both side brackets b and b of the steering member main body a. Instrument brackets e and e for mounting a panel (not shown) to the vehicle body, an electronic device mounting bracket f for mounting an electronic device (not shown) as an automobile automatic driving device or automatic stopping device, and an airbag Airbag device mounting bra for mounting device (not shown) The mounting parts mounting bracket such as Tsu door g is configured by mounting.

  As shown in FIG. 7, the mounting component mounting brackets, for example, the steering column bracket c, mount the steering column shaft j to the steering member main body a through the column shaft holder i attached together by mounting bolts h. doing. The steering column shaft j rotatably supports and inserts a steering shaft s on which a steering wheel k mounted on one end side is supported so as to be capable of steering rotation. Furthermore, the steering member main body a and the steering column bracket c are installed on the vehicle body m with a post bracket d interposed therebetween (see Patent Document 1).

  Further, a mounting component mounting bracket, for example, an airbag device mounting bracket g for mounting an airbag device is formed so as to have a substantially U-shape when viewed from the front, as shown in FIG. The parts g-1 and g-2 are attached to the steering member main body a so as to stand up in the vertical direction of the vehicle body, and the top surface part g-3 is planted on the inner wall surface thereof. An airbag device mounting bolt g-4 screwed to a project nut (not shown) is erected, and is configured to attach the airbag device to the steering member main body a (FIG. 5 of Patent Document 2). See).

  Furthermore, the airbag apparatus mounting bracket g shown in FIG. 9 is configured to attach an airbag apparatus of a different type from the airbag apparatus attached to the airbag apparatus mounting bracket g shown in FIGS.

  The airbag apparatus mounting bracket g shown in FIG. 9 has a steering member main body a having a mounting flange part g-6 integrally formed so as to hang down from both side ends of the flat bracket main body part g-5. It is mounted so as to extend substantially in the front-rear direction of the vehicle body by welding to the mounting flange portion g-6, and is screwed to a project nut (not shown) planted on the inner wall surface thereof. An airbag device mounting bolt g-7 is erected, and is configured to attach the airbag device to the steering member main body a (see FIG. 7 of Patent Document 2).

  Therefore, in the above-described conventional steering member device, mounting parts such as the steering column shaft j and the airbag device are mounted on the steering member main body a using brackets such as the steering column bracket c and the airbag device mounting bracket g. It is supposed to be.

  As a result, in such a conventional steering member device, the steering column bracket c and the airbag device are attached due to the difference in the type of the steering shaft j and the airbag device (see FIGS. 8 and 9) and the difference in the left or right-hand drive vehicle. The mounting part mounting bracket such as the bracket g needs to be manufactured in different shapes. Conventionally, the steering member main body a has various kinds of devices such as an instrument panel, an air conditioner, an audio device, and the steering column shaft j, and an airbag device in addition to the steering column shaft j and the airbag device. Not only is it used as a mounting location for mounting parts, but due to recent developments in automobile technology and demands for safe driving, for example, mounting of new equipment such as an automatic driving device for cars or an automatic stopping device for cars It is also being used as a place.

  As a result, a large number of mounting component mounting brackets having different shapes for each mounting component are mounted on the steering member main body a on which these multiple mounting components are mounted. Since the number of mounting parts to be used tends to increase more and more, the number of mounting part mounting brackets must be increased.

  As described above, as the required number of mounting component mounting brackets increases, not only the shape of the mounting component mounting brackets but also the design layout for mounting the mounting component mounting bracket on the steering member main body a has to be expended. As a result, the weight of the automobile is increased and the cost is increased.

  Conventionally, a technique shown in FIG. 10 has been proposed to solve such a problem. The technique shown in FIG. 10 is to eliminate a steering column bracket (not shown) for attaching a steering column shaft to the steering member main body a, and the head of the mounting bolt h attached to the steering member main body a. Are welded directly by welding. As a result, the steering column shaft can be attached to the steering member main body via the column shaft holder, and the steering column bracket which is one of the mounting component mounting brackets can be eliminated.

  However, in the conventional technology configured as described above, the mounting bolt h is attached to the steering member main body a by welding, and therefore, the thread of the mounting bolt h may be crushed by spatter scattered during the welding operation. . As a result, there is a concern that a nut (not shown) for attaching the steering column shaft to the steering member main body a cannot be screwed.

  Therefore, the inventor first allows the mounting component to be directly mounted on the steering member body without using the mounting component mounting bracket as much as possible, and reduces the layout design man-hour for the mounting member mounting bracket on the steering member body. A steering member device is proposed that is configured to suppress an increase in weight and cost of an automobile and to prevent screw crushing due to sputtering (see FIG. 2 of Patent Document 2).

  Such a technique has been proposed for mounting an airbag device on a steering member main body, for example, and a mounting bolt insertion hole is formed in the airbag device mounting plane portion of the steering member main body, and the mounting bolt insertion hole is formed. A nut having a screw hole to be inserted is planted on the inner wall surface of the steering member body, and a mounting bolt for mounting the airbag device to the steering member body is inserted from the mounting bolt insertion hole into the screw hole of the nut. By screwing, the airbag device can be mounted on the steering member main body without using mounting component mounting brackets.

  And the said nut is planted in the steering member main body by crimping to a mounting bolt insertion hole using a crimping nut.

  As a result, such a technique uses a caulking nut as a nut having a screw hole inserted into the mounting bolt insertion hole as well as a mounting bolt insertion hole in the steering member main body, and is applied to the inner wall surface of the steering member main body. Since it is configured by tightening and fixing, the mounting angle of the nut is unlikely to shift, and in addition, a mounting bolt for mounting a mounting part is inserted into the mounting bolt insertion hole and then screwed into the screw hole. For example, the one mounting part can be mounted on the steering member body without using the mounting part mounting bracket, and the nut is mounted on the steering member body by caulking, so that welding work is not required. Therefore, there is no inconvenience such as crushing of the screw thread at the time of attaching the nut.

JP2013-079927A Japanese Patent Laying-Open No. 2015-231799

  However, in such a technique, when mounting components are mounted on the steering member main body, the mounting operator screws the mounting bolts onto the nuts while supporting the mounting components, and the mounting components include, for example, a steering column shaft and an airbag. Alternatively, when the weight is increased like an instrument panel, one installation worker positions the mounting bolts and nuts while holding the mounting parts such as the steering column shaft, and the other installation workers perform screwing work. As a result, there remains a problem in the mounting workability.

  Therefore, the present invention enables mounting components to be mounted on the steering member body without using mounting component mounting brackets as much as possible, thereby reducing the layout design man-hours for mounting member mounting brackets on the steering member body and increasing the weight of the vehicle. Another object of the present invention is to provide a steering member device that can be configured to suppress an increase in cost, and that can improve the workability of attaching a mounted component to a steering member body.

  In the steering member device according to the present invention, the steering member main body is disposed on the vehicle body via a pair of side brackets attached to both outer ends in the vehicle width direction, and the both side brackets in the steering member main body are arranged. A steering member device configured by mounting a mounting component constituted by a steering column, an instrument panel, an electronic device, an airbag device, or the like at an intermediate portion sandwiching the vehicle, and at least one of these mounting components A mounting bolt insertion hole is provided in the steering member main body, and the mounting component mounting bolt for mounting the one mounting component on the steering member main body is provided in the mounting bolt insertion hole. Extends outward from the steering member body Together is inserted to, it is characterized in that the head of the mounting bolt is located in the steering member body configured by caulking fixed to the mounting bolt holes.

  In the present invention having such a configuration, the mounting bolt is fixed to the steering member main body by caulking, and the screw shaft portion of the mounting bolt extends outwardly from the steering member main body. The mounting parts can be mounted on the steering member body using bolts, and the mounting angle of the mounting bolts is less likely to shift. In addition, the required number of conventional mounting part mounting brackets can be reduced. Thus, it is possible to reduce the number of man-hours for designing the layout of the mounting member mounting bracket with respect to the steering member body, and it is possible to suppress an increase in the weight and cost of the automobile.

  Further, according to the present invention having such a configuration, when the mounting part is mounted on the steering member body, the screw shaft portion of the mounting bolt that protrudes outward from the steering member body has a positioning function of the mounting part. It is also possible to achieve this, and the installation work by one installation worker becomes possible, and the installation workability of the mounted parts can be remarkably improved.

1 is a perspective view schematically illustrating a steering member device employing one embodiment according to the present invention. FIG. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. FIG. 2 is a schematic explanatory diagram illustrating a manufacturing process of the steering member body depicted in FIG. 1. It is CC sectional drawing of FIG. It is the perspective view which drawn roughly the steering member apparatus concerning an example of a prior art. It is DD sectional drawing of FIG. It is E arrow line view of FIG. FIG. 7 is a view taken in the direction of arrow E in FIG. 6 when an airbag mounting bracket for mounting another type of airbag device in the prior art is employed. It is a schematic longitudinal cross-sectional view of the steering member main body which employ | adopted the attachment bolt for mounting | wearing with the steering column shaft which concerns on the other example of a prior art.

  The steering member device according to the embodiment of the present invention can mount the mounting component without using the mounting component mounting bracket as much as possible on the steering member main body, and reduces the layout design man-hour for the steering member main body of the mounting component mounting bracket. It is configured to suppress an increase in the weight and cost of the automobile and to improve the workability of attaching the mounted part to the steering member body.

  Next, a steering member device according to one embodiment employing the present invention will be described with reference to FIGS.

  Referring first to FIG. 1, a steering member device according to one embodiment of the present invention includes a steering member body 1 in a vehicle width direction via a pair of side brackets 2 and 3 attached to both outer ends in the vehicle width direction. It is arranged on a vehicle body (not shown) so as to extend.

  The steering member main body 1 includes an instrument panel (4, 4) for attaching an instrument panel (not shown) to the vehicle body, and an air conditioner (1) for attaching an air conditioner (not shown) at an intermediate portion between both side brackets 2, 3. A mounting part mounting bracket such as an mounting bracket 5a, an electronic device mounting bracket 5b for mounting an electronic device such as an automatic driving device or an automatic stop device of an automobile is installed.

  In addition, in an intermediate part sandwiching both side brackets 2 and 3 of the steering member main body 1, a mounting part mounting bolt for mounting a steering column shaft 7, which will be described later, constituting one of the mounting parts at a position facing the post bracket 6. A pair of mounting bolts 8 are provided in a state of being spaced apart from each other in the axial direction of the steering member main body 1, and an airbag device to be described later that also constitutes one of the mounting parts at a position close to the side bracket 2 side. A mounting bolt 9 as a mounting part mounting bolt for mounting 10 is provided.

  FIG. 2 shows a state in which the steering column shaft 7 is mounted on the steering member main body 1 using the mounting bolt 8. The mounting bolt 8 has a mounting bolt insertion hole in which the screw shaft portion 8 a is provided in the steering member main body 1. 11, the head 8 b is fixed to the steering member body 1 by caulking the head 8 b. At this time, the head 8 b of the mounting bolt 8 is disposed in the steering member main body 1, and the screw shaft portion 8 a extends to the outside of the steering member main body 1.

  Due to such a configuration, the mounting bolt 8 does not use a conventional steering column bracket or the like, but cooperates with the mounting bolt 12 mounted on the post bracket 6 side to connect the steering column shaft 7 to the steering member. It is attached to the main body 1.

  That is, the post bracket 6 is formed in a bifurcated shape, the base end portion 6a is attached to the vehicle body 13 via a bolt 15 or the like, and the tip end sides of the pair of leg piece portions 6b and 6c are welded. It is attached to the steering member main body 1 by such means. A mounting bolt 12 is attached to one leg piece 6 c of the post bracket 6 so as to face the mounting bolt 8.

  Accordingly, by screwing the steering column shaft 7 with the mounting bolt 8 and the mounting bolt 12, the steering column shaft 7 is mounted on the steering member main body 1 via the post bracket 6 and the steering member main body 1. Is installed on the vehicle body 13 via the post bracket 6.

  As shown in FIG. 3, the mounting bolt 8 for mounting the steering column shaft 7 to the steering member main body 1 is inserted into the mounting bolt insertion hole 11 provided in the steering member main body 1 so that the screw shaft portion 8a is inserted. In the state where 8b is positioned in the steering member main body 1, the mounting bolt insertion hole 11 is caulked to constitute a caulking bolt that is fixed to the steering member main body 1.

  Next, a manufacturing process for caulking and fixing the mounting bolt 8 to the steering member main body 1 will be described with reference to FIG.

  That is, in step (1) in FIG. 4, first, the plate-like steering member body material 1a is formed into a substantially U shape by press molding.

  Next, in the step (2), the curved bottom portion of the steering member main body material 1a formed in a substantially U shape is crushed on a plane to form the plane portion 1b, and the mounting bolt insertion hole 11 is formed in the plane portion 1b. Drill.

  Next, in the step (3), after the mounting bolt 8 is inserted into the mounting bolt insertion hole 11 so that the screw shaft portion 8a protrudes outward, the mounting bolt insertion hole 11 is swaged. The fixing bolt 8 is fixed to the steering member main body material 1a.

  Next, in the step (4), the steering member main body 1 is formed by forming the U-shaped steering member main body material 1a into a pipe shape.

  As shown in FIG. 5, the mounting bolt 9 is also a mounting bolt formed in the steering member main body 1 in the same manner as the manufacturing process in which the mounting bolt 8 is caulked and fixed in the molding process of the steering member main body 1. It is fixed by caulking in a state of being inserted through the insertion hole 14.

  In such a state, the head 9b of the mounting bolt 9 is present inside the steering member main body 1, and the screw shaft portion 9a extends so as to protrude above the steering member main body 1.

  The mounting bolt 9 is attached to the steering member main body 1 by screwing the screw shaft portion 9a.

  In one embodiment according to the present invention configured as described above, the mounting bolts 8 and 9 have a predetermined mounting angle because the screw shaft portions 8a and 9a are guided by the mounting bolt insertion holes 11 and 14, respectively. At the same time, the mounting bolts 8 and 9 are fixed by caulking to the steering member main body 1, and the screw shaft portions 8a and 9a of the mounting bolts 8 and 9 are respectively fixed to the steering member main body 1. 1, the steering column shaft 7 or the airbag device 10 can be attached to the steering member main body 1 using the mounting bolts 8 and 9 respectively. Steering column bracket c or column shaft mounting piece i or airbag device mounting bracket By eliminating g, the required number of mounting parts mounting brackets can be reduced, the number of layout design steps for the steering member body of the mounting parts mounting bracket can be reduced, and the increase in the weight and cost of the vehicle can be suppressed. It will be possible.

  Further, according to one embodiment of the present invention having such a configuration, when the steering column shaft 7 or the airbag device 10 which is a mounting part to the steering member main body 1 is mounted, the projection member extends outward from the steering member main body 1. The screw shaft portions 8a, 9a of the existing mounting bolts 8, 9 can also perform the positioning function of the steering column shaft 7 and the airbag device 10, and can be mounted by one mounting worker. Thus, the mounting workability of the mounted parts can be remarkably improved.

  In the above embodiment of the present invention, the steering column shaft 7 and the airbag device 10 are mounted as the mounting parts on the steering member body 1, but the present invention is not limited to this. The present invention can also be applied to a mounting configuration of mounting parts such as an air conditioner device, an electronic device, or an instrument panel mounted on the steering member body 1.

  The present invention described above makes it possible to directly mount the mounting component on the steering member body without using the mounting component mounting bracket as much as possible, reduce the layout design man-hour for the mounting member mounting bracket to the steering member body, and reduce the weight of the vehicle. Since it can be configured to suppress an increase in cost and cost and to prevent screw crushing due to sputtering, it can be said to be suitable for a steering member device that supports a steering mechanism configured to control steering control of an automobile.

1 Steering member body 7 Steering column shaft (mounted part)
8 Mounting bolt (Mounting part mounting bolt)
9 Mounting bolt (Mounting part mounting bolt)
10 Airbag device (mounted parts)
11 Mounting bolt insertion hole 13 Car body 14 Mounting bolt insertion hole

Claims (1)

The steering member body is disposed on the vehicle body via a pair of side brackets attached to both outer ends in the vehicle width direction, and a steering column at an intermediate portion sandwiching the both side brackets in the steering member body, A steering member device configured by mounting a mounting component formed by an instrument panel, an electronic device, an airbag device, or the like, wherein the steering member main body is configured to mount at least one of the mounting components. A mounting bolt insertion hole is provided in the mounting bolt insertion hole, and a mounting component mounting bolt for mounting the one mounting component on the steering member main body is protruded outward from the steering member main body. And the steer Steering member unit, characterized in that the head of the mounting bolt is located configured by caulking fixed to the mounting bolt holes in the grayed member body.

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