JP6552684B1 - Steering member structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steering member structure for reducing stress acting on a member main body. A steering member structure having a support member (column bracket 20) attached to a member main body 3 extending in a vehicle width direction X and supporting a steering column 5, wherein the support member (column bracket 20) is a vehicle. A front support member (front bracket 21) that is attached to the front side of the member body 3 in the front-rear direction Y and supports the steering column 5, and a rear support member that is attached to the rear side of the member body 3 in the vehicle front-rear direction Y. Rear support members (first rear bracket 22, second rear bracket 23) to be supported, front support members (front bracket 21), and rear support members (first rear bracket 22, second rear bracket) 23) and the connection part (the 1st connection part 31 and the 2nd connection part 32) which connect the member main body 3. [Selection] Figure 2

Description

  The present invention relates to a steering member structure having a support member for supporting a steering column.

  Conventionally, a column bracket that supports a steering column is attached to the steering member (see, for example, Patent Document 1).

  Patent Document 1 discloses that a column bracket for holding a steering column is attached to an assist-side pipe and a driver-side pipe as member members constituting a steering member.

Japanese Patent Laid-Open No. 2005-112078

  However, in the configuration described in Patent Document 1, the column bracket extending to the front of the vehicle and the column bracket extending to the rear of the vehicle are connected via the member body, so the column bracket extending to the front of the vehicle and the vehicle extending to the rear There is a problem that stress acts on the member main body between the column bracket.

  Then, an object of this invention is to provide the steering member structure which reduces the stress which acts on a member main body.

In order to achieve the above object, the steering member structure of the present invention is a steering member structure mounted on a member body extending in the vehicle width direction and having a support member for supporting a steering column, wherein the support member is a vehicle A front support member located on the front side of the member main body in the front-rear direction , one end attached to the member main body, and the other end located on the rear side of the member main body in the vehicle front-rear direction And a connecting portion connecting the rear side supporting member having one end attached to the member body and the other end fixed to the steering column , the front side supporting member, the rear side supporting member, and the member body. , And.

  In the steering member structure of the present invention configured as described above, the stress acting on the member main body can be reduced.

FIG. 2 is a perspective view showing a configuration of a steering member to which the steering member structure of Embodiment 1 is applied. It is a perspective view which shows the structure of the column bracket of Example 1. FIG. FIG. 5 is a side view showing the configuration of a column bracket of Example 1; It is a perspective view explaining the structure of the bracket provided in the steering column of Example 1. FIG. It is explanatory drawing explaining the comparative example of the steering member structure of Example 1. FIG. FIG. 6 is a perspective view illustrating a configuration of a steering member according to a second embodiment.

  Hereinafter, an embodiment for realizing a steering member structure according to the present invention will be described based on Example 1 and Example 2 shown in the drawings.

[Steering member configuration]
FIG. 1 is a perspective view illustrating a configuration of a steering member to which the steering member structure of the first embodiment is applied. Hereinafter, based on FIG. 1, the structure of the steering member of Example 1 is demonstrated.

  In vehicles such as automobiles, an instrument panel is installed in the front part of the passenger compartment. Inside the instrument panel, a steering member is provided as a strength member for connecting the left and right vehicle body panels.

  As shown in FIG. 1, the steering member 1 includes a member body 3 extending straight in the vehicle width direction X, a side bracket 6 attached to the member body 3, a stay 10 attached to the member body 3, and a member body The column bracket 20 as a support member attached to 3 and the post bracket 40 attached to the member main body 3 are provided.

  The member main body 3 can be a cylindrical metal member, for example. The member main body 3 includes a driver's seat side pipe 3a disposed on the driver's seat side and a passenger's seat side pipe 3b disposed on the passenger's seat side. The diameter of the driver side pipe 3a is formed larger than the diameter of the passenger side pipe 3b.

  The side bracket 6 can be a metal member. The side brackets 6 are installed at both ends of the member main body 3 in the vehicle width direction X. The member main body 3 is attached to left and right vehicle body panels (not shown) by side brackets 6.

  The column bracket 20 can be a metal member having a groove shape in cross section. The column bracket 20 is attached to the driver's side pipe 3a. The steering column 5 is attached to the driver's side pipe 3 a via the column bracket 20.

  The post bracket 40 can be a metal member having a concave groove shape in cross section. The post bracket 40 is attached to the front side in the vehicle longitudinal direction Y of the driver seat side pipe 3a. The post bracket 40 is attached to the dash panel 2 and fixedly supports the member body 3 with respect to the dash panel 2.

  The post bracket 40 has a first post bracket 41 and a second post bracket 42. The first post bracket 41 is disposed on the outer side (vehicle compartment outer side) than the column bracket 20 in the vehicle width direction X. The second post bracket 42 is disposed on the inner side (vehicle interior side) than the column bracket 20 in the vehicle width direction X.

  The stay 10 can be a metal member having a concave groove shape in cross section. The stay 10 is attached to the driver's side pipe 3a. The stay 10 extends substantially in the vehicle vertical direction Z, is attached to the floor panel 4, and fixes and supports the member body 3 with respect to the floor panel 4.

[Configuration of column bracket]
FIG. 2 is a perspective view illustrating a configuration of the column bracket 20 according to the first embodiment. FIG. 3 is a side view showing the configuration of the column bracket 20 of the first embodiment. FIG. 4 is a perspective view illustrating a configuration of a bracket provided on the steering column 5 of the first embodiment. Hereinafter, based on FIGS. 2-4, the structure of the column bracket 20 of Example 1 is demonstrated.

  As shown in FIGS. 2 and 3, the column bracket 20 includes a front side bracket 21 as a front side support member, a first rear side bracket (an example of a first rear side support member) 22 as a rear side support member, and a rear side And a second rear bracket (an example of a second rear support member) 23 as a side support member.

  The front side bracket 21 is attached to the front side of the driver's seat side pipe 3 a in the vehicle longitudinal direction Y. The front side bracket 21 is formed in a concave groove shape in cross section, and includes a web portion 21a, a first flange portion 21b as a flange portion, and a second flange portion 21c as a flange portion.

  The web portion 21a has a width in the vehicle width direction X and is formed in a band plate shape. The web portion 21a may be provided with a bead shape or a hole.

  The first flange portion 21b extends downward in the vehicle vertical direction Z from the one end portion of the web portion 21a in the vehicle width direction X. The first flange portion 21 b is disposed on the outer side (outer side of the passenger compartment) than the steering column 5. The first flange portion 21 b has a through hole 21 d for attaching the steering column 5.

  The second flange portion 21c extends downward in the vehicle vertical direction Z from the other end of the web portion 21a in the vehicle width direction X. The second flange portion 21 c is disposed on the inner side (the vehicle interior side) than the steering column 5. The second flange portion 21 c has a through hole 21 e for attaching the steering column 5.

  A first connecting portion 31 as a connecting portion to be described later is formed on the first flange portion 21b. The second flange portion 21c is formed with a second connecting portion 32 as a connecting portion to be described later.

  The first rear side bracket 22 is attached to the rear side of the driver's seat side pipe 3a in the vehicle longitudinal direction Y. The first rear bracket 22 is disposed on the outer side (vehicle compartment outer side) than the steering column 5 in the vehicle width direction X.

  The first rear side bracket 22 includes a first web portion 22a as a web portion, a first flange portion 22b as a flange portion, and a second flange portion 22c as a flange portion.

  The first web portion 22 a has a through hole 22 d for attaching the steering column 5. The first flange portion 22b extends upward from one end of the web portion 21a in the vehicle width direction X and in the vehicle vertical direction Z, and is attached to the driver's seat side pipe 3a by welding or the like.

  The second flange portion 22c extends upward in the vehicle width direction X from the other end of the web portion 21a in the vehicle vertical direction Z, and is attached to the driver's seat side pipe 3a by welding or the like. The second flange portion 22c is disposed closer to the steering column 5 than the first flange portion 22b.

  The second rear side bracket 23 is attached to the rear side of the driver's seat side pipe 3a in the vehicle longitudinal direction Y. The second rear bracket 23 is disposed on the inner side (vehicle interior side) than the steering column 5 in the vehicle width direction X.

  The second rear bracket 23 is formed in the same manner as the first rear bracket 22. The second rear side bracket 23 includes a second web portion 23a as a web portion, a first flange portion 23b as a flange portion, and a second flange portion 23c as a flange portion.

  The second web portion 23 a has a through hole 23 d for attaching the steering column 5. The first flange portion 23b extends upward from one end of the web portion 21a in the vehicle width direction X and in the vehicle vertical direction Z, and is attached to the driver's seat side pipe 3a by welding or the like. The second flange portion 23c extends upward in the vehicle width direction X from the other end of the web portion 21a in the vehicle vertical direction Z, and is attached to the driver's seat side pipe 3a by welding or the like. The second flange portion 23c is disposed closer to the steering column 5 than the first flange portion 23b.

  As shown in FIG. 3, the steering column 5 includes a first mounting bracket 7 and a second mounting bracket 8.

  As shown in FIG. 4, the first mounting bracket 7 is formed in the shape of a recessed groove in cross section, and includes a web 7 a, a first flange 7 b, and a second flange 7 c.

  The first flange 7b has a long hole 7d formed in the vehicle longitudinal direction Y. The second flange 7c has a long hole 7e formed in the vehicle longitudinal direction Y.

  The second mounting bracket 8 includes a second mounting bracket body 8a, a first seat surface 8b, and a second seat surface 8c.

  The first seat surface 8b has an elongated hole-shaped notch 8d with the rear end of the vehicle longitudinal direction Y opened. The second seat surface 8c has an elongated hole-shaped notch 8e with the rear end of the vehicle longitudinal direction Y opened.

  The steering column 5 includes a through hole 21 d of the first flange 7 b of the first mounting bracket 7, a long hole 7 e of the second flange 7 c of the first mounting bracket 7, and a first flange portion 21 b of the front bracket 21. The bolt B is inserted into and fixed to the through hole 21 e of the second flange portion 21 c of the front side bracket 21 so as to be attached to the front side bracket 21.

  Further, the steering column 5 is fixed by inserting the bolt B into the cutout 8 d of the first seat surface 8 b of the second mounting bracket 8 and the through hole 22 d of the first web portion 22 a of the first rear bracket 22. By doing this, the first rear bracket 22 is attached.

  Further, the steering column 5 is fixed by inserting the bolt B into the notch 8e of the second seating surface 8c of the second mounting bracket 8 and the through hole 23d of the second web portion 23a of the second rear side bracket 23. By doing this, the second rear bracket 23 is attached.

  As shown in FIG. 3, a steering wheel 51 and an airbag 52 are attached to the steering column 5.

[Configuration of connected part]
Hereinafter, based on FIG.2 and FIG.3, the structure of the connection part of Example 1 is demonstrated.

  As shown in FIGS. 2 and 3, the first connecting portion 31 is formed by extending the first flange portion 21 b of the front bracket 21. The first connecting portion 31 is formed in a diverging shape toward the base of the first flange portion 21b (the connecting portion to the driver's seat side pipe 3a).

  The first connecting portion 31 is attached to the driver's seat side pipe 3a and the first web portion 22a of the first rear bracket 22 by welding or the like so that the first connecting portion 31 rides on the first web portion 22a of the first rear bracket 22 It is done. That is, the first connecting portion 31 connects the first flange portion 21 b, the driver's seat side pipe 3 a, and the first web portion 22 a of the first rear bracket 22.

  The first connecting portion 31 is disposed at substantially the same position as the second flange portion 22 c of the first rear bracket 22 in the vehicle width direction X. That is, the first connecting portion 31 is disposed closer to the steering column 5 than the first flange portion 22 b of the first rear bracket 22 in the vehicle width direction X.

  The second connection part 32 is formed in the same manner as the first connection part 31. The second connecting portion 32 is formed by extending the second flange portion 21 c of the front side bracket 21. The second connection portion 32 is formed in a flared shape toward the base of the second flange portion 21c (the connection portion to the driver's seat side pipe 3a).

  The second connection portion 32 is attached to the driver's seat side pipe 3a and the second web portion 23a of the second rear bracket 23 by welding or the like so that the second connection portion 32 rides on the second web portion 23a of the second rear bracket 23. It is done. That is, the second connecting portion 32 connects the second flange portion 21 c, the driver's seat side pipe 3 a, and the second web portion 23 a of the second rear bracket 23.

  The second connecting portion 32 is disposed at substantially the same position as the second flange portion 23c of the second rear bracket 23 in the vehicle width direction X. That is, the second connecting portion 32 is disposed closer to the steering column 5 than the first flange portion 23 b of the second rear bracket 23 in the vehicle width direction X.

[Function of steering member structure]
FIG. 5 is an explanatory diagram for explaining a comparative example of the steering member structure of the first embodiment. Hereinafter, the operation of the steering member structure of the first embodiment will be described. Note that FIG. 5 is slightly exaggerated for easy understanding of the operation of the comparative example.

  The steering member structure of the first embodiment is a steering member structure having a support member (column bracket 20) attached to the member main body 3 extending in the vehicle width direction X and supporting the steering column 5, and the support member (column bracket 20) is attached to the front side of the member main body 3 in the vehicle longitudinal direction Y, and is attached to the rear side of the member main body 3 in the vehicle longitudinal direction Y and a front side support member (front side bracket 21) supporting the steering column 5; , A rear side support member (first rear side bracket 22 and a second rear side bracket 23) for supporting the steering column 5, a front side support member (a front side bracket 21), and a rear side support member (a first rear side bracket 22) A second rear bracket 23) and a connecting portion for connecting the member body 3 (first connecting portion 31 and second connecting portion 32); Comprising (Figure 2).

  Thereby, the stress applied to the portion of the member main body 3 between the front side support member (the front side bracket 21) and the rear side support member (the first rear side bracket 22 and the second rear side bracket 23) It can disperse | distribute through the connection part 31, the 2nd connection part 32). Therefore, stress on the portion of the member main body 3 between the front side support member (the front side bracket 21) and the rear side support member (the first rear side bracket 22 and the second rear side bracket 23) can be reduced. As a result, the thickness of the member main body 3 can be reduced and weight reduction can be achieved.

  By the way, heavy components such as a steering wheel 51 and an airbag 52 are attached to the steering column 5. Therefore, as shown in FIG. 5, in the case of the steering member 501 not provided with the connecting portion, for example, the front side bracket 21 rotates counterclockwise about the member main body 3 by the steering column 5 being deformed by vibration. The force is input, and the force by which the rear support members (the first rear bracket 22 and the second rear bracket 23) rotate clockwise about the member body 3 is input. In this case, a compressive force is applied to the portion of the member main body 3 between the front side bracket 21 and the rear side support members (the first rear side bracket 22 and the second rear side bracket 23), and the member main body 3 is deformed. There is a problem that.

  On the other hand, in the steering member structure of the first embodiment, the connecting portions (the first connecting portion 31 and the second connecting portion 32) include the front side support member (the front side bracket 21) and the rear side support member (the first rear side). The front support member (the front bracket 21) and the rear support member (the first rear bracket 22, the second rear bracket 23) for connecting the bracket 22, the second rear bracket 23) and the member main body 3 And the compression force applied to the portion of the member main body 3 between them) can be dispersed through the coupling portion (the first coupling portion 31 and the second coupling portion 32).

  In the steering member structure of the first embodiment, the front side support member (the front side bracket 21) is a flange portion (on which the steering column 5 is attached) extending downward from the web portion 21a and both ends of the web portion 21a in the vehicle width direction X. A first flange portion 21b and a second flange portion 21c), and a rear support member (first rear bracket 22 and second rear bracket 23) is a web portion (first web) to which the steering column 5 is attached. Portion 22a, second web portion 23a) and the web portion (first web portion 22a, second web portion 23a) of the rear support member (first rear bracket 22, second rear bracket 23) in the vehicle width direction. Flange portions (first flange portion 22b, second flange portion 22c, first flange portion 23b, second flange portion 23c) extending upward from both ends of X, The connecting portions (first connecting portion 31 and second connecting portion 32) include a flange portion (first flange portion 21b and second flange portion 21c) of the front support member (front bracket 21) and a rear support member ( The web parts (first web part 22a, second web part 23a) of the first rear bracket 22 and the second rear bracket 23 are connected to the member main body 3 (FIG. 2).

  Thus, the flange portions (first flange portion 21b, second flange portion 21c) of the front side support member (the front side bracket 21) and the webs of the rear side support member (the first rear side bracket 22 and the second rear side bracket 23) The stress applied to the portion of the member main body 3 between the portions (the first web portion 22a and the second web portion 23a) can be dispersed through the connecting portions (the first connecting portion 31 and the second connecting portion 32). Therefore, the stress applied to the part of the member main body 3 between the front support member (front bracket 21) and the rear support member (first rear bracket 22 and second rear bracket 23) can be reduced. As a result, the thickness of the member main body 3 can be reduced to reduce the weight.

  In the steering member structure of the first embodiment, the rear support members (the first rear bracket 22 and the second rear bracket 23) are disposed on one side of the steering column 5 in the vehicle width direction X. A side support member (first rear side bracket 22) and a second rear side support member (second rear side bracket 23) disposed on the other side of the steering column 5 in the vehicle width direction X (see FIG. 2).

  Thereby, the location which supports the steering column 5 can be increased. Therefore, the support rigidity of the steering column 5 can be increased.

  In the steering member structure of the first embodiment, the position of the connecting portion (the first connecting portion 31 and the second connecting portion 32) in the vehicle width direction X corresponds to the rear support member (the first rear bracket 22 and the second rear bracket). The position of the flange portion (the second flange portion 22c and the second flange portion 23c) closer to the steering column 5 in 23) is substantially the same (FIG. 2).

  Thus, the width of the front side support member (the front side bracket 21) in the vehicle width direction X can be narrowed. Therefore, the front support member (front bracket 21) can be reduced in weight.

  FIG. 6 is a perspective view illustrating a configuration of a steering member according to the second embodiment. Hereinafter, based on FIG. 6, the structure of the steering member of Example 2 is demonstrated. In addition, about the description of the part same or equivalent to the content demonstrated in Example 1, it demonstrates using the same term or the same code | symbol.

  The steering member 101 of the second embodiment is different from the steering member of the first embodiment in that the configuration of the front bracket is different.

  The web portion 121a of the front bracket 121 is formed wider in the vehicle width direction X than the web portion 21a of the first embodiment.

  The first connecting portion 31 is a first flange portion 22 b of the first rear bracket 22 disposed farther from the steering column 5 than the second flange portion 22 c of the first rear bracket 22 in the vehicle width direction X; Arranged at substantially the same position.

  The second connecting portion 32 is a first flange portion 23 b of the second rear bracket 23 disposed farther from the steering column 5 than the second flange portion 23 c of the second rear bracket 23 in the vehicle width direction X; Arranged at substantially the same position.

  Hereinafter, the operation of the steering member structure of the second embodiment will be described. In the steering member structure of the second embodiment, the position of the connecting portion (the first connecting portion 31 and the second connecting portion 32) in the vehicle width direction X corresponds to the rear support member (the first rear bracket 22 and the second rear bracket). The position of the flange portion (the first flange portion 22b and the first flange portion 23b) far from the steering column 5 in 23) is substantially the same (FIG. 6).

  Thus, a space formed by the flanges (first flange 21b and second flange 21c) of the front support member (front bracket 121) and the web portion 121a of the front support member (front bracket 121) is secured. be able to. Therefore, parts attached to the steering column 5 can be accommodated in this space. Other configurations and operational effects of the second embodiment are substantially the same as those of the first embodiment, and thus description thereof is omitted.

  The steering member structure according to the present invention has been described based on the first and second embodiments. However, the specific configuration and operation are not limited to these examples, and combinations of the examples, changes in design, and the like unless they deviate from the scope of the invention according to the claims of the claims. Addition is permitted.

  In the first embodiment and the second embodiment, an example in which the member main body 3 is cylindrical is shown. However, the member main body is not limited to this aspect, and may be, for example, a cylinder having a polygonal cross section. Moreover, a member main body is not limited to the aspect formed in linear form, There may be a bending part.

  In the first embodiment and the second embodiment, the first connecting portion 31 is formed by extending the first flange portion 21b, and the second connecting portion 32 is formed by extending the second flange portion 21c. showed that. However, as a connection part, you may be provided as a front bracket 21 separate body.

  In the first embodiment and the second embodiment, an example in which the steering member structure of the present invention is applied to a left-hand drive vehicle is shown. However, the invention can also be applied to right-hand drive vehicles.

DESCRIPTION OF SYMBOLS 1 Steering member 3 Member main body 5 Steering column 20 Column bracket (an example of a support member)
21 Front bracket (an example of a front support member)
21a Web part (web part of front support member)
21b 1st flange part (an example of the flange part of a front side support member)
21c 2nd flange part (an example of the flange part of a front side support member)
22 First rear bracket (an example of a rear support member)
22a 1st web part (an example of the web part of a rear side support member)
22b First flange portion (an example of the flange portion of the rear side support member)
22c 2nd flange part (an example of the flange part of a rear side support member)
23 Second rear bracket (example of rear support member)
23a second web portion (an example of the web portion of the rear side support member)
23b First flange portion (an example of the flange portion of the rear side support member)
23c Second flange (example of flange)
31 1st connecting part (an example of connecting part)
32 Second connecting part (an example of connecting part)
X Vehicle width direction Y Vehicle longitudinal direction

Claims (7)

A steering member structure having a support member attached to a member main body extending in the vehicle width direction and supporting a steering column,
The support member is
A front support member that is positioned on the front side of the member main body in the vehicle front-rear direction , one end is attached to the member main body, and the other end is fixed to the steering column;
A rear side support member located on the rear side of the member main body in the longitudinal direction of the vehicle , one end attached to the member main body, and the other end fixed to the steering column;
A steering member structure comprising: a connecting portion that connects the front support member, the rear support member, and the member main body. The front support member includes a web portion, and a flange portion to which the steering column is attached that extends downward from both ends of the web portion in the vehicle width direction.
The rear support member includes a web portion to which the steering column is attached;
A flange portion extending upward from both ends in the vehicle width direction of the web portion of the rear support member,
The steering member structure according to claim 1, wherein the connecting portion connects the flange portion of the front side support member, the web portion of the rear side support member, and the member main body. The rear support member is
A first rear support member disposed on one side of the steering column in the vehicle width direction;
The steering member structure according to claim 2, further comprising: a second rear support member disposed on the other side of the steering column in the vehicle width direction. The steering member structure according to claim 3, wherein a position of the connecting portion in the vehicle width direction is substantially the same as a position of the flange portion closer to the steering column of the rear side support member. . The steering member structure according to claim 3, wherein the position of the connecting portion in the vehicle width direction is substantially the same as the position of the flange portion of the rear support member which is remote from the steering column. . The connecting portion is constructed by welding and welding between the front side supporting member and the rear side supporting member along the circumferential direction of the member body.
The steering member structure according to claim 1, wherein: The flange portion of the front support member rides on and is connected to the web portion of the rear support member.
The steering member structure according to claim 2, wherein: