JPH0520622Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a mounting structure for a support member that supports a steering column of a vehicle. More specifically, the present invention relates to a mounting structure for attaching a steering column support member, which is installed between both inner side walls in the vehicle body width direction of the passenger compartment below the windshield, to the front inner wall of the passenger compartment below the windshield.

[Prior Art] A steering column support member supports the steering column and suppresses vibrations transmitted from the wheels through the steering shaft while the vehicle is running, thereby providing vibration isolation for the instrument panel and its vicinity. be.

Conventionally, in order to install this type of steering column support member, as shown in FIG. The formed cowl bracket 4 is fixed by welding. Screw holes 2a and 4a are provided in the cowl brace 2 and cowl bracket 4 in advance, respectively, and these screw holes 2a
Steering column support member 1 is inserted and tightened through bolts 5 and 4a, respectively.
is attached to the cowl inner panel 3 (for example, Utility Model No. 57-177873).

In the above mounting structure, if the fixed position of each member or the position of each screw hole deviates from the predetermined position, the screw holes will not match during installation and it will be difficult to insert the bolt. 2a or the screw hole 4a of the cowl bracket 4 is enlarged in the traveling direction of the vehicle (the L direction in FIG. 7) and the vertical direction thereof (the H direction in the same figure). This allows the bolts 5 and 6 to be inserted and tightened even if the centers of the screw holes 2a and 4a are slightly shifted during installation. Further, when the cowl inner panel 3 is deformed during a vehicle collision, the bent portion 4b of the cowl bracket 4 is deformed to reduce the influence on the steering column support member 1.

[Problems to be solved by the invention] However, the conventional mounting structure described above does not have an appropriate adjustment method when the cowl brace 2 and the cowl bracket 4 do not match in the width direction of the vehicle body (W direction in FIG. 7). By tightening the bolts 5 and 6, one or both of the cowl brace 2 and the cowl bracket 4 are forcibly deformed. For this reason, there is a problem that the number of man-hours required for installation increases and that unnecessary distortion is caused to the cowl brace 2 or the cowl bracket 4.

Furthermore, since the deformation of the bent portion 4b is a partial deformation of the cowl bracket 4, which is a continuous reinforcing member, the bent portion 4b may not always take the desired shape when the vehicle collides.

The purpose of the present invention is to easily prevent misalignment even if the centers of the screw holes of the brace member and the screw holes of the bracket are misaligned in any direction, such as the direction of travel of the vehicle, the vertical direction of the vehicle, or the width direction of the vehicle body. It is an object of the present invention to provide a mounting structure for a steering column support member for a vehicle, which can be adjusted to the height of the steering column support member and can absorb collision energy more appropriately in the event of a vehicle collision.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a steering column support member installed between both inner walls in the width direction of the vehicle body of the vehicle interior below the windshield. A mounting structure for a vehicle steering column support member to be attached to a front inner wall of a vehicle includes: a lower brace member fixed to the steering column support member and having a horizontal portion having a first screw hole; and a lower brace member fixed to the front inner wall. a bracket formed with an upright portion having a second screw hole; and a bracket that is disposed in close contact with both the horizontal portion and the upright portion, faces the first screw hole in close contact, and has a hole diameter different from that of the first screw hole. an upbringing brace member provided with a third screw hole and a fourth screw hole that faces the second screw hole and has a different diameter from the second screw hole, and is inserted into the first and third screw holes and tightened; The present invention is characterized by comprising a first bolt that connects the lower brace member and the upper brace member, and a second bolt that is inserted into the second and fourth screw holes and is tightened to connect the bracket and the upper brace member. .

[Function] Even if the centers of the screw holes of the brace member and the screw holes of the bracket are misaligned in any one of the directions of the vehicle traveling direction, the vertical direction of the vehicle, and the width direction of the vehicle body, the first screw hole or the third screw hole Since one of the holes has a large diameter and either the second screw hole or the fourth screw hole has a large diameter, the upper brace member can be inserted into the first and second screw holes in close contact with both the lower brace member and the bracket. Can tighten 2 bolts,
Easily adjust misalignment.

Further, in the event of a vehicle collision, the upper brace member slides on the horizontal portion of the lower brace member by the amount of positional deviation between the first screw hole and the third screw hole to absorb the collision energy.

[Example] Next, an example of the present invention will be described in detail based on the drawings.

As shown in FIGS. 1 to 4, a cowl inner panel 12 is provided in the front vehicle body width direction of the vehicle interior 11 below the windshield 10. As shown in FIGS. This panel 12
A steering column support member 14 is installed substantially parallel to the inner walls 13 in the width direction of the vehicle body.
The support member 14 is composed of a hollow cylindrical body part 15 and a hollow enlarged part 16 having a larger cross-sectional area over the whole than the hollow cylindrical body part, which are firmly connected to each other at the center. The hollow enlarged portion 16 is formed by welding an upper member 16a and a lower member 16b at each end, thereby increasing cross-sectional rigidity.

A steering support 17 is fixed to the lower member 16b of the hollow enlarged portion 16 by welding, and a steering column 18 is attached to the steering support 17. Steering column 18 rotatably holds a steering shaft 19. A lower brace member 2 is provided on each upper surface of the upper member 16a of the hollow enlarged portion 16 and the steering support 17.
0 is fixed by welding. Lower brace member 2
0, a horizontal portion 22 having a first screw hole 21 is formed. A nut 34 is fixed by welding to the lower surface of this horizontal portion 22, facing the screw hole 21. Further, a cowl bracket 23 is fixed to the vertical portion 12a of the cowl inner panel 12 by welding. A raised portion 25 having a second screw hole 24 is formed in the bracket 23. A nut 36 is fixed by welding to the back surface of this upright portion 25, facing the screw hole 24. Lower brace member 20 and bracket 23
An atsupab brace member 26 is provided between the horizontal part 22 and
and the upright portion 25.

As shown in FIGS. 5 and 6, a third screw hole 28 having a hole diameter d ₃ larger than the hole diameter d ₁ of the first screw hole 21 is provided in the horizontal portion 27 of the atsupa brace member 26, so that the atsupa brace member 26 can stand upright. The portion 29 is provided with a fourth screw hole 30 (long diameter d ₄ ) which is longer than the second screw hole 24 having a hole diameter d ₂ in the vertical direction of the vehicle (direction H in FIG. 1).

To attach the steering column support member 14 having such a configuration to the cowl inner panel 12,
After the support member 14 is installed between both inner walls 13 of the vehicle compartment 11, the upper brace member 26 is placed in close contact with both of the upright portions 25 of the bracket 23 of the horizontal portion 22 of the lower brace member 20.

Here, the horizontal part 27 of the upper brace member 26 is shifted from the horizontal part 22 of the lower brace member 20 in the traveling direction of the vehicle (the L direction in Figure 1) or the width direction of the vehicle body (the W direction in the Figure), and the third screw Even if the centers of the hole 28 and the first screw hole 21 do not coincide, the hole diameter d ₃ of the third screw hole 28 is larger than the hole diameter d ₁ of the first screw hole 21, and the first screw hole 21 is connected to the third screw hole 28. Since the first bolt 31 is located inside the screw holes 28 and 21, the first bolt 31 can be inserted through the washer 33, screwed into the nut 34, and then tightened.

Further, the upright portion 29 of the upper brace member 26 is offset from the upright portion 25 of the bracket 23 in the vertical direction of the vehicle (direction H in the figure), and the fourth screw hole 30
The fourth screw hole 30 is formed as a long hole even if the centers of the second screw hole 24 and
The second bolt 32 is inserted into the second bolt 32 through the washer 35, and a nut 36 is screwed onto the second bolt 32, thereby tightening the second bolt 32.

Furthermore, when the cowl inner panel 12 is deformed due to a vehicle collision, the cowl bracket 23 pushes the upper brace member 26 rearward, so that the upper brace member 26 passes over the horizontal portion 22 of the lower brace member 20 through the first screw hole 21 and the third screw hole. It slides by the positional deviation (Δd) of 28 to absorb the collision energy.

In the above example, the third screw hole is larger than the first screw hole and the fourth screw hole is larger than the second screw hole, but the opposite may be used.

[Effects of the invention] As mentioned above, in the past, when the screw holes of the brace member and the screw holes of the bracket were misaligned in the width direction of the vehicle body, each member was deformed and installed. According to the invention, even if the screw holes of the brace member and the screw holes of the bracket are misaligned in any direction in the traveling direction of the vehicle, the vertical direction of the vehicle, or the width direction of the vehicle body, the intermediate brace member can be inserted between the brace member and the bracket. Since the dispersion of each screw hole can be absorbed by interposing the bolt, it is possible to insert a bolt into each screw hole, and positional deviation can be easily adjusted.

When a vehicle crashes, conventionally the cowl bracket, which is a continuous reinforcing member, absorbs the impact by partially deforming it, but according to the present invention, a separate member slides to absorb the impact. The collision energy can be absorbed more appropriately.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the mounting structure of a vehicle steering column support member according to an embodiment of the present invention. Second
The figure is a sectional view taken along line A-A in FIG. FIG. 3 is a perspective view of the lower brace member. FIG. 4 is a perspective view of the upper brace member. FIG. 5 is a view taken along arrow B in FIG.
FIG. 6 is a view taken along arrow C in FIG. FIG. 7 is an exploded perspective view showing the mounting structure of a conventional vehicle steering column support member. 10... Windshield, 11... Vehicle interior, 12
... Cowl inner panel, 13 ... Vehicle width direction inner wall, 14 ... Steering column support member, 1
8...Steering column, 20...Lower brace member, 21...First screw hole, 22...Horizontal part,
23... Cowl bracket, 24... Second screw hole, 25... Upright portion, 26... Upper brace member, 28... Third screw hole, 30... Fourth screw hole,
31...first bolt, 32...second bolt.

Claims (1)

[Scope of Claim for Utility Model Registration] A steering column support for a vehicle in which a steering column support member installed between both inner walls in the width direction of the vehicle body of a vehicle interior below the windshield is attached to the front inner wall of the vehicle interior below the windshield. In the member mounting structure, a lower brace member is formed with a horizontal portion that is fixed to the steering column support member and has a first screw hole, and an upright portion that is fixed to the front inner wall and has a second screw hole is formed. a bracket, and a third screw hole that is closely disposed on both the horizontal portion and the upright portion, faces the first screw hole, and has a hole diameter different from the first screw hole, and faces the second screw hole. an upper brace member provided with the second screw hole and a fourth screw hole having a different hole diameter, and a first bolt that is inserted into the first and third screw holes and tightened to connect the lower brace member and the upper brace member. and a second bolt that is inserted into the second and fourth screw holes and tightened to connect the bracket and the upper brace member.