JPH0715811Y2 - Steering support structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a steering support structure that prevents the steering shaft from retreating extremely when a vehicle has a collision or the like.

(Prior Art) A general steering structure for a passenger vehicle is shown in FIG. A dash panel 1 forming a front side wall of a vehicle compartment is provided, and a cowl top 2 is coupled to an upper portion of the dash panel 1 over a width of a vehicle body. The cowl top 2 is provided so as to project toward the passenger compartment side, and the cowl top inner 3 forming the inside of the vehicle and the cowl top outer 4 forming the outside of the vehicle are joined together at their edges. It forms a closed cross section.

And the dash panel 1 and cowl top inner 3
A pedal support bracket 6 is coupled to and. The pedal support bracket 6 has a connecting piece 7 connected to the vehicle cabin side surface of the dash panel 1 and a connecting piece 8 connected to the lower surface of the cowl top inner 3. Through holes (not shown) are formed in each case. Through holes are respectively formed in the dash panel 1 and the cowl top inner 3 corresponding to these through holes, and weld nuts are provided in correspondence with these through holes and are bolted.

Further, a flange portion 9 is provided at a tip end portion of the pedal support bracket 6 on the vehicle interior side, and a weld nut 10 is provided on the flange portion 9. A middle part of the shaft 12 is rotatably attached.

Further, a base end portion of a steering support 13 is coupled to a side wall surface of the cowl top inner 3 corresponding to a position where the steering shaft 12 is disposed on the vehicle interior side. The middle portion of the cross pipe 14 is connected to the tip of the steering support 13 in a penetrating state. This cross pipe 14
Is provided with its axis oriented in the vehicle width direction.

A plurality of through holes (not shown) are formed in the lower surface on the tip side of the steering support 13, and a weld nut (not shown) is provided inside these through holes to attach the mounting bracket 15 with bolts 16 ,. By coupling, the middle part of the steering shaft 12 is rotatably supported.

The steering shaft 12 supported in this way is provided on the dash panel 1 with an arrow A when a vehicle has a collision or the like.
When deformation occurs in the direction indicated by, dash panel 1
The pedal support bracket 6 coupled to the vehicle also moves in the direction of arrow A, and the steering shaft 12 supported by the pedal support bracket 6 also moves backward.

(Problems to be Solved by the Invention) As described above, when the dash panel is deformed due to a vehicle collision or the like, the pedal support coupled to the dash panel and the cowl top provided on the dash panel. The bracket is moved. As a result, the steering shaft fixed to the pedal support bracket may also be moved.

The present invention has been made in view of the above problems, and an object thereof is to provide a steering support structure capable of preventing the steering shaft from moving backward even if the dash panel is deformed.

[Constitution of device]

(Means and Actions for Solving the Problem) This invention provides a cowl top outer on an upper side of a cowl top inner provided on an upper end of a dash panel, and a pedal on the dash panel and a lower side portion of the cowl top inner. The support bracket is fixed, the steering support is connected to the rear end surface of the cowl top inner, the first support portion is provided under the steering support, and the front end side of the steering support is connected to the deck cross member. A second support portion is provided on the lower side of the cross member, a steering shaft is supported on the first support portion and the second support portion, and a low-rigidity portion is provided on the cout top inner rearward of the pedal support bracket and By installing it so that it is located in front of the above-mentioned steering support, it can be installed on the dash panel. Steering that prevents the twisting deformation from being transmitted to the steering shaft via the pedal support bracket, and the buckling deformation of the low-rigidity portion also prevents the displacement from being transmitted to the steering shaft via the cowl top inner. It is in the support structure.

(Embodiment) An embodiment of the present invention will be described with reference to FIGS. 1 and 2. A cowl top inner 18 is coupled to the upper end of a dash panel 17 shown in the figure. A buckling bead 19 as a low-rigidity portion is formed in the middle portion of the cowl top inner 18 in the front-rear direction, for example, in the vehicle width direction.

Further, a plurality of through holes (not shown) are formed on the upper side of the dash panel 17, and weld nuts 20, ... Are provided on the front side surfaces of the through holes, respectively.

Further, a through hole (not shown) is also formed in the lower surface of the cowl top inner 18, and a weld nut 20 is provided on the upper side surface corresponding to this through hole. A flange portion 22 of the pedal support bracket 21 is superposed on a portion corresponding to the weld nuts 20, ..., And bolts 23 ,. Where the pedal support bracket 21
Is provided on the front side of the buckling bead 19 and is formed to support the cowl top inner 18.

Further, a cowl top outer 24, which is joined to an edge portion of the cowl top inner 18 and forms a closed cross section, is joined to an upper portion of the cowl top inner 18.

The rear end of the steering support upper 25 is joined to the rear side surface of the cowl top inner 18, and the lower end of the tip of the steering support upper 25 is on the upper surface of the deck cross member 26 provided in the vehicle width direction. Are combined.

Here, the steering support upper 25 is formed as shown in FIG. 2, for example, flange portions are provided on the front and rear portions, respectively, and the cowl top inner 18 and the deck are provided via these flange portions. Cross member 26
Respectively combined with and.

Further, extension pieces 27 and 28 extending downward are provided on the left and right sides, and between the extension pieces 27 and 28, the extension pieces 27 and 28 are integrally attached from the lower side of the steering support upper 25. A steering support lower 29 is provided.
The steering support lower 29 is provided with polymerized pieces 30, 31 on the left and right, which are polymerized and bonded to the extension pieces 27, 28 from the inside.
Is provided with a support portion 32. The central portion of the first support portion 32 is bent upward, and the weld nuts 33 are provided on the left and right sides thereof.
Two through-holes each having a hole are formed, and a mounting bracket 34 having a flange portion corresponding to the through-hole is fixed by two bolts 35.
The middle portion of the steering shaft 36 is rotatably supported by the first support portion 32.

Further, coupling pieces 37, 38 which are overlapped with the lower surface of the cowl top inner 18 are provided at the edges of the overlapping pieces 30, 31, and the coupling pieces 37, 38 are bonded to the lower surface of the cowl top inner 18. .

On the other hand, on the lower surface of the deck cross member 26, for example, two through holes (not shown) are formed on the left and right sides, and weld nuts 39 and 40 are provided inside these through holes. , 40 are respectively tightened by bolts 42, 43 to form a second support portion 44 for rotatably supporting the steering shaft 36.

According to the steering support structure thus configured, when the vehicle collides and the dash panel 17 is deformed and moved in the arrow B direction, the pedal support bracket 21 is moved in the same direction. However, since the pedal support bracket 21 does not support the steering shaft 36 even with such deformation movement, it is possible to prevent the steering shaft 36 from moving toward the occupant.

Further, when the dash panel 17 is largely deformed as shown by the chain line, the buckling bead 19 formed on the cowl top inner 18 is buckled and prevented from moving the steering shaft 36. As described above, according to the above-described embodiment, the steering shaft 36 can be prevented from being displaced by the deformation of the dash panel 17.

Also, the pedal support bracket 21 is attached to the dash panel 17
Since it is fixed to the lower part of the cowl top inner 18, the pedal support bracket 21 can be attached to the vehicle body with high support strength.

Moreover, the cowl top inner 18 is provided with a buckling bead 19 as a low-rigidity portion located behind the pedal support bracket 21 and in front of the steering support 25. When the bracket 21 is displaced, the buckling beat 19 as a low-rigidity portion is deformed, whereby the displacement of the steering support 25 can be suppressed and the backward movement of the steering shaft 36 can be efficiently prevented.

As described above, according to this embodiment, the pedal support bracket 21 can be attached with high support strength, and at the same time, the steering shaft 36 can be efficiently prevented from retreating even if the pedal support bracket 21 is displaced.

Note that the present invention is not limited to the above-described one embodiment.For example, the subject of the above-described embodiment is a passenger vehicle, but the present invention is not limited to this, and the cowl tops 18, 24 are coupled to the dash panel 17. This cowl top 18, 24 provided
Any vehicle having a structure in which the steering shaft 36 is supported may be used.

[Effect of device]

According to this invention, the pedal support bracket can be attached to the vehicle body with high support strength, and a steering support structure that can prevent the steering shaft from retracting even if the dash panel is deformed can be provided.

[Brief description of drawings]

1 and 2 show one embodiment of the present invention. FIG. 1 is a side sectional view of a steering support structure, FIG. 2 is an exploded perspective view of a steering support structure, and FIG. 3 is a conventional steering support structure. It is a sectional side view. 17 ... Dash panel, 18 ... Cowl top inner, 21 ... Pedal support bracket, 24 ... Cowl top outer, 32
... 1st support part, 36 ... Steering shaft, 44 ... 2nd
Support part, 19 ... Buckling bead (low rigidity part).

Claims (1)

[Scope of utility model registration request] 1. A cowl top inner provided on an upper end of a dash panel, and a cowl top outer provided on an upper side of the cowl top inner so as to form a closed cross section,
A pedal support bracket fixed to the dash panel and the lower portion of the cowl top inner, a steering support coupled to the rear end surface of the cowl top inner, and a first support provided on the lower side of the steering support. A support portion, a deck cross member to which the front end side of the steering support is coupled, a second support portion provided below the deck cross member, and the first support portion and the second support portion, respectively. A steering shaft having a midway portion rotatably supported, and a low-rigidity portion provided on the cowl top inner portion behind the pedal support bracket and in front of the steering support are provided. Steering support structure.