JPH0556743U - Steering column support structure for vehicles - Google Patents

Abstract

(57) [Abstract] [Purpose] The support of the steering column to the stationary side of the vehicle body is made firm, and when an impact force is applied to the support frame that supports the steering column, the impact force is applied to the support frame. It is effectively absorbed by the frame. [Structure] The steering column 16 is mounted on the stationary side of the vehicle body 5,1.
A support frame 23 that supports the second frame is provided. A pair of first fixing points 36, 37 of the steering column 16 with respect to the support frame 23 are provided on the left and right sides of the steering column 16 in a distributed manner. A virtual straight line connecting at least a part of the middle portions 27c, 28c of the support frame 23 to the first fixing points 36, 37 and the second fixing points 38, 39 of the same supporting frame 23 with respect to the stationary sides 5, 12 of the vehicle body. Three
Deviate from 2.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a steering column support structure for a vehicle, in which a steering column supporting a steering handle is supported by a support frame on a stationary side of a vehicle body.

[0002]

[Prior Art]

 A conventional steering column support structure is disclosed in Japanese Utility Model Laid-Open No. 63-70473. According to this, the steering column is erected in the front part of the vehicle compartment, and the lower portion of the steering column is supported by the support frame on the stationary side of the vehicle body.

[0003]

[Problems to be solved by the device]

 By the way, the support frame in the above configuration has a narrow width in the left-right direction, which may result in insufficient support strength in the left-right direction of the steering column. Further, since the support frame extends on a virtual straight line connecting the fixed point of the steering column to the support frame and the fixed point of the same support frame to the stationary side of the vehicle body, for example, an impact force is applied to the support frame at the time of a collision. When applied, it acts primarily on the support frame as an axial force. Therefore, since the supporting frame is not easily deformed, the impact force may not be absorbed sufficiently.

[0004]

[The purpose of the device]

 The present invention has been made in view of the above circumstances, so that the steering column is firmly supported on the stationary side of the vehicle body, and the supporting frame supporting the steering column is not subject to an impact force. The purpose of this impact is to be effectively absorbed by the support frame when applied.

[0005]

[Means for Solving the Problems] A feature of the present invention for achieving the above object is that when the lower portion of the steering column is supported by a support frame on the stationary side of the vehicle body, A pair of first fixed points of the steering column are provided on the left and right sides of the steering column in a distributed manner, and at least a part of the middle portion of the support frame from the stationary side of the vehicle to the steering column is defined as the first fixed point. The point is deviated from an imaginary straight line that connects the second fixed point of the support frame to the stationary side of the vehicle body.

[0006]

[Work]

 The operation of the above configuration is as follows. A lower support frame (support frame) 23 that supports the steering column 16 on the stationary sides 5 and 12 of the vehicle body is provided, and the first fixing points 36 and 37 that fix the steering column 16 to the lower support frame (support frame) 23. In the same manner, a pair is provided on the left and right of the steering column 16 in a distributed manner. Therefore, the left and right width of the lower support frame (support frame) 23 extends across the left and right of the steering column 16, and the width dimension increases.

Further, at least a part of the connecting members (halfway portions) 27c, 28c of the lower support frame (support frame) 23 are connected to the first fixing points 36, 37 and the stationary side 5, 12 of the vehicle body. It is deviated from an imaginary straight line 32 connecting the second fixing points 38 and 39 for fixing the lower supporting frame (supporting frame) 23. Therefore, for example, when an impact force is applied to the lower support frame (support frame) 23 at the time of a vehicle collision and the first and second fixing points 36 to 39 approach each other, the lower support frame The connecting members (halfway portions) 27c and 28c of the frame (supporting frame) 23 are easily bent by the impact force.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 2, reference numeral 1 is a steering device in an automobile, which is a vehicle, and the steering device 1 is provided in a front portion of a passenger compartment 2. The arrow Fr indicates the front of the automobile.

The front surface of the vehicle compartment 2 is formed by a front cowl 3 that is a stationary side of the vehicle body and a dash panel 4 that extends from the front cowl 3 from below. The reinforcing plate 5 is firmly welded. Reference numeral 7 denotes a support pipe, which extends in the vehicle width direction and each end of which is fixed to each of the left and right front cowls. A support arm 8 is provided so as to project from the middle portion of the support pipe 7 on the left and right, and a projecting end of the support arm 8 is screwed to the reinforcing plate 5 by a first bolt 9. As a result, the reinforcing plate 5 and the support pipe 7 reinforce each other to give them sufficient rigidity.

Reference numeral 11 is a pedal for an accelerator and a clutch, and 12 is a pedal support on the stationary side of the vehicle body for pivotally supporting the pedal 11. The front end of the pedal support 12 is screwed to the dash panel 4 with a second bolt 13, and the rear end is screwed to the reinforcing plate 5 with a pair of left and right third bolts 14.

The steering device 1 has a steering column 16 provided upright in the front part of the vehicle compartment 2. The steering column 16 is formed of a circular pipe and extends rearward and upward. An upper support piece 17 is projectingly provided in the vertical middle portion of the steering column 16, and a lower support piece 18 protruding leftward and rightward from the steering column 16 is attached to a lower portion of the same steering column 16.

An upper support frame 19 is installed on the upper support piece 17 and the lower support piece 18. The upper end of the upper support frame 19 is screwed to the upper support piece 17 with a fourth bolt 20, and the lower end of the upper support frame 19 is screwed to the lower support piece 18 with a fifth bolt 21. The upper and lower intermediate portions of the upper support frame 19 are firmly welded to the support pipe 7.

A lower support frame 23 that supports the lower portion of the steering column 16 on the side of the reinforcing plate 5 and the pedal support 12 is provided. The steering column 16 is supported on the stationary side of the vehicle body by the reinforcing plate 5, the support pipe 7, the pedal support 12, the upper supporting frame 19, the lower supporting frame 23, and the like, and the steering column 16 is supported by the steering shaft 24. Is rotatably supported about its axis. A steering handle 25 is attached to the upper end of the steering shaft 24, and the lower end of the steering shaft 24 is connected to the front wheel, which is a steering wheel.

The lower support frame 23 will be described with reference to FIGS. 1 to 4. The lower support frame 23 is composed of a left frame 27 and a right frame 28. The left and right frames 27 and 28 are formed by bending a single long member having a U-shaped cross section. There is.

The left and right frames 27, 28 include upper members 27 a, 28 a that extend horizontally along the pedal support 12, lower members 27 b, 28 b that extend horizontally along the lower support piece 18, respectively. The members 27a, 28a and the lower members 27b, 28b are composed of connecting members 27c, 28c for connecting the respective outer ends thereof. The connecting members 27c and 28c extend in the vertical direction, and these constitute the upper and lower intermediate portions of the lower support frame 23.

The upper members 27a and 28a are overlapped and welded to each other, and these members are fastened together to the reinforcing plate 5 together with the pedal support 12 with one of the pair of third bolts 14 and 14. Has been done. The free end of the upper member 27a of the left frame 27 is fastened to the reinforcing plate 5 together with the pedal support 12 by the other third bolt 14.

The lower members 27b and 28b are screwed to the lower support piece 18 by sixth bolts 29 and 29, respectively. In this case, a part of the lower end of the upper support frame 19 extends, the extending portion 30 is interposed between the lower members 27b and 28b and the lower supporting piece 18, and the extending portion 30 is It is fastened together with the sixth bolt 29.

In FIG. 1, when a vehicle collides and the steering column 16 moves closer to the pedal support 12 due to the impact, the connecting members 27c and 28c of the left and right frames 27 and 28 are connected. When a compressive force in the axial direction acts on the steering column 16, the fulcrum of the steering column 16 with respect to the lower support frame 23 is in contact with the extending portion 30 at the ends of the connecting members 27c and 28c on the steering column 16 side. The first fixed point 36, 37 is located in the area. Further, the fulcrum of the lower support frame 23 with respect to the pedal support 12 is located at a portion where the end portions of the connecting members 27c and 28c on the pedal support 12 side are in contact with the pedal support 12, and this is the second fixing. The points are 38 and 39.

The first fixing points 36 and 37 are provided on the left and right of the steering column 16 in a distribution manner. Therefore, the left and right width of the lower support frame 23 straddles the left and right of the steering column 16, and the width dimension is large, whereby the supporting strength of the steering column 16 is sufficiently secured.

Further, when virtual straight lines 32 1, 32 connecting the first fixing points 36, 37 and the second fixing points 38, 39 are set, each of the lower support frames 23 extending from the pedal support 12 side to the steering column 16 is set. The middle portions of the connecting members 27c and 28c are offset from the virtual straight lines 32 and 32 to the left and right.

Therefore, for example, when the steering column 16 moves toward the pedal support 12 as described above in the event of an automobile collision, the connecting members 27c and 28c of the lower support frame 23 are easily bent. , The impact force is effectively absorbed.

In particular, as shown in FIGS. 1 and 3, an upper bent portion 33 and a lower bent portion 34 are formed in the upper and lower middle portions of the connecting members 27c and 28c, respectively. The line is inclined with respect to the longitudinal direction of the connecting members 27c and 28c. Thus, when the lower support frame 23 receives an impact force, the upper bent portion 33 and the lower bent portion 34 easily start the deformation of the lower support frame 23, and the deformation proceeds smoothly. As a result, the impact force is effectively absorbed.

[0023]

[Effect of the device]

 According to this invention, the support frame for supporting the steering column on the stationary side of the vehicle body is provided, and the first fixing point of the steering column with respect to the support frame is provided on the left and right sides of the steering column in the same manner. The width spans the left and right sides of the steering column, and the width dimension increases, thereby improving the support strength of the steering column. Moreover, since at least a part of the middle portion of the support frame is deviated from a virtual straight line connecting the first fixing point and the second fixing point of the same supporting frame with respect to the stationary side of the vehicle body, for example, a vehicle collision At this time, when the support frame receives an impact force and the first and second fixing points approach each other, the middle part of the support frame is easily bent, and thus the impact force is effectively absorbed. To be done.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view taken along the line 1-1 of FIG.

FIG. 2 is an overall side view of a steering device.

FIG. 3 is a partially enlarged partial sectional view of FIG.

FIG. 4 is a view taken along line 4-4 of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Steering device 2 Cabin 5 Reinforcement plate (vehicle body stationary side) 12 Pedal support (vehicle body stationary side) 14 Third bolt 16 Steering column 23 Lower support frame (support frame) 27c Connecting member (midway part) 28c Connecting member (midway part) ) 29 6th bolt 32 Virtual straight line 36 1st fixed point 37 1st fixed point 38 2nd fixed point 39 2nd fixed point

Claims (1)

[Scope of utility model registration request] 1. A steering column support structure for a vehicle, wherein a steering column is provided upright in a front portion of a vehicle compartment, and a lower portion of the steering column is supported by a support frame on a stationary side of a vehicle body. A pair of first fixed points of the same are provided on the left and right sides of the steering column in a distributed manner, and at least a part of a middle portion of the support frame from the stationary side of the vehicle to the steering column is provided with the first fixed point and the stationary side of the vehicle. A steering column support structure for a vehicle deviated from an imaginary straight line connecting the second fixed point of the support frame with the above.