JP3595077B2 - Pedal bracket support structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure for supporting a pedal bracket joined to a dash panel that separates an engine room and a vehicle compartment.
[0002]
[Prior art]
Generally, a pedal bracket for supporting a brake pedal or a clutch pedal of an automobile is joined to a dash panel that separates an engine room and a vehicle compartment. Since the dash panel has a low rigidity, the upper rear side of the pedal bracket is supported by a support member or a cowl extending so as to pass between the left and right front pillars, so that the support rigidity of the pedal bracket is increased. Alternatively, the input from the clutch pedal is dispersed.
[0003]
For example, as shown in FIG. 5, there is a structure in which the pedal bracket 6 is supported via a mounting stay 70 on the cowl 3 extending so as to pass between the left and right front pillars. In such a support structure of the pedal bracket, the pedal bracket 6 is joined to the dash panel 8 by bolting or welding, and the upper rear portion of the pedal bracket 6 has an upper end portion as described above. The lower end of the mounting stay 70 mounted on the cowl 3 is joined by bolts 59 and the like.
[0004]
In Japanese Utility Model Publication No. 59-7167, as shown in FIG. 6 of the present application, a pedal bracket 6 is supported via a connection bracket 75 on a support frame (support member) 9 extending so as to pass between front pillars. A structure has been proposed. In the present invention, the connection bracket 75 has a sufficient rigidity in a downward direction, but has a low rigidity in a rearward direction. With the above-described configuration of the connection bracket 75, when a load equal to or more than a predetermined value is input from the front of the vehicle and the dash panel 8 moves rearward, the connection bracket 75 deforms rearward. Thus, the rearward movement of the steering shaft 90 supported by the support frame 9 is to be restricted.
[0005]
[Problems to be solved by the invention]
However, in the support structure of the pedal bracket shown in FIG. 5, the rigidity of the dash panel 8 itself is low. Therefore, in order to secure sufficient support rigidity of the pedal bracket 6, it is necessary to provide the mounting stay 70 itself with sufficient rigidity. In addition, it is necessary to provide sufficient rigidity to the joint between the mounting stay 70 and the cowl 3. For this reason, it is necessary to take measures by increasing the thickness of the mounting stay 70, and the weight around the support structure of the pedal bracket is increased, which leads to an increase in cost. Further, in such a support structure of the pedal bracket, no measures are taken to increase the support rigidity of the pedal bracket 6 in the vehicle width direction. For this reason, since it is necessary to support the pedal bracket 6 with a certain degree of rigidity also in the vehicle width direction, a greater rigidity is required for the support between the mounting stay 70 and the cowl 3, which promotes the above-described problem. ing. Further, since the rigidity of the dash panel 8 is low and the supporting rigidity of the pedal bracket 6, particularly the supporting rigidity in the vehicle width direction, is low, the pedal bracket 6 vibrates due to the vibration of the engine during idling or the like, so that the mounting stay 70 and Not only is a large load applied to the joint between the cowl 3 and the joint between the mounting stay 70 and the pedal bracket 6, but also noise is generated due to the vibration of the pedal bracket 6. Failure occurs.
[0006]
Also, in the invention disclosed in Japanese Utility Model Publication No. Sho 59-7167 shown in FIG. 6, no measures are taken to increase the support rigidity of the pedal bracket 6 in the vehicle width direction. It has the same problem as the support structure of the pedal bracket.
[0007]
The present invention has been conceived in view of the above circumstances, and can increase the support rigidity of a pedal bracket, particularly, the lateral support rigidity, and can increase the rigidity of a dash panel. It is an object of the present invention to provide a pedal bracket support structure that can prevent deformation of a vehicle body even when a load equal to or more than a predetermined value is input.
[0008]
DISCLOSURE OF THE INVENTION
In order to solve the above problems, the present invention employs the following technical means.
[0009]
That is, the pedal bracket support structure according to the present invention is a structure for supporting a pedal bracket joined to a dash panel that separates an engine room and a vehicle compartment, and the pedal bracket is also provided with left and right front pillars. extends bound vehicle width direction, and along with being supported in the vertical direction against the cowl or the support member you located above the pedal bracket, to the front pillar, separate from the cowl and the support member It is supported in the vehicle width direction via a reinforcing member formed as a body, and when a load equal to or greater than a predetermined value is input from the vehicle front direction of the dash panel, the connection between the pedal bracket and the reinforcing member is prevented. It is characterized in that it is configured to be released.
[0010]
Such a support structure of the pedal bracket supports the dash panel in the front-rear direction by joining the pedal bracket to the dash panel, and supports the pedal bracket in the vertical direction by supporting the pedal bracket on the cowl or the support member. The pedal bracket is supported in the left-right direction by being supported on a front pillar via a reinforcing member. Therefore, the support structure of the pedal bracket described above can increase the lateral support rigidity of the pedal bracket by supporting the pedal bracket on the front pillar via the reinforcing member. Normally, the arm portion of the brake pedal is bent in either the left or right direction. Therefore, when the driver applies a pedaling force to the brake pedal, the pedal bracket is not only loaded vertically but also horizontally. Will be entered. Therefore, if the support rigidity of the pedal bracket in the left-right direction is low, when the driver applies a depressing force to the brake pedal, the pedal bracket is wobble in the left-right direction, and the driver may feel uncomfortable. As described above, the support structure of the pedal bracket according to the present invention has the support rigidity of the pedal bracket increased in the left-right direction, so that when the driver applies a pedaling force to the brake pedal, the pedal bracket moves in the left-right direction. Problems such as wobbling and the driver feeling uncomfortable can be avoided.
[0011]
Further, by supporting the pedal bracket on the front pillar via the reinforcing member, the pedal bracket, the dash panel, the front pillar, and the reinforcing member form a closed cross section, so that the rigidity of the dash panel can be increased. As a result, the rigidity of the joint between the dash panel and the pedal bracket is increased, and, for example, when the pedal bracket and the support member or the cowl are supported via a mounting stay, the idle state is reduced. When the pedal bracket vibrates due to the vibration of the engine, the load applied to the joint between the mounting stay and the cowl and the joint between the mounting stay and the pedal bracket can be reduced. Further, even when the pedal bracket is supported by being directly joined to the cowl, a load applied to a joint between the pedal bracket and the cowl can be reduced. In addition, by supporting the pedal bracket in the vehicle width direction, the support rigidity of the pedal bracket is increased as a whole, including front and rear, up and down directions, and the vibration of the pedal bracket can be suppressed. The generated noise can be reduced. In addition, since the rigidity of each portion around the support structure of the pedal bracket and the support rigidity of each support portion are increased, the weight around the support structure of the pedal bracket can be reduced, and the cost increase due to the use of the reinforcing member is supplemented. be able to.
[0012]
Furthermore, the support structure of the pedal bracket according to the present invention has a configuration in which the connection between the pedal bracket and the reinforcing member is released when a load equal to or more than a predetermined value is input to the dash panel from the front of the vehicle. Therefore, when a load equal to or more than a predetermined value is input to the dash panel from the front of the vehicle, even if the dash panel or the like moves rearward, the connection between the pedal bracket and the reinforcing member is released, so that the front pillar is released. The load on the surroundings can be reduced. Therefore, when a load greater than a predetermined value is input from the front of the dash panel to the vehicle, deformation of the door opening can be prevented, and the door does not become open in an emergency, so that the occupant escapes from the vehicle. Can improve safety.
[0013]
Other features and advantages of the present invention will become more apparent from the detailed description given below with reference to the accompanying drawings.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
[0015]
FIG. 1 is a front view of a pedal bracket support structure according to the present invention, and FIG. 2 is a side view of the pedal bracket support structure according to the present invention. In the present embodiment, the pedal bracket 6 has four bolts 52, 53, 52 '(one of four bolts) fixed to the booster 45 by welding or the like with respect to the dash panel 8 that separates the engine room and the vehicle compartment. The book is supported in the front-rear direction by being fastened together with the dash panel 8 using a not shown), and the cowl 3 extending in the vehicle width direction combined with the left and right front pillars via the stay 7. It is supported vertically. Further, the pedal bracket 6 is supported on the front pillar 2 in the left-right direction via the reinforcing member 1.
[0016]
The stay 7 is formed of metal or the like, and the lower half 70 is integrally attached to the pedal bracket 6 by welding so as to cover the vehicle rear side surface of the pedal bracket 6. 6, the surface rigidity of the rear side of the vehicle is increased. Further, as shown in FIG. 2, the stay 7 has an upper end 70 joined to a bracket 30 attached to the cowl 3 by a bolt 51, and the pedal bracket 6 is vertically moved with respect to the cowl 3. I support it. As shown in FIG. 4, the side end 72 of the stay 7 is bent in the vehicle front direction when the stay 7 is attached to the pedal bracket 6, and is connected to the reinforcing member 1 described later. It is designed to increase the rigidity of the part.
[0017]
The side end of the pedal bracket 6 on the rear side surface of the vehicle is formed in a shape corresponding to the shape of the stay 7. This increases the rigidity of the pedal bracket 6 itself. The pedal bracket 6 is also formed of metal or the like.
[0018]
As shown in FIG. 3, the reinforcing member 1 includes a bent piece 10 having a bolt hole 11 formed to extend from a reinforcing member main body 14, and a notch 13 opened in a vehicle rear direction in a state where the pedal bracket 6 is supported. As shown in FIG. 4, the engaging piece 12 is formed of metal or the like in a substantially U-shape in plan view.
[0019]
In the reinforcing member 1, the bent piece 10 is joined to the front pillar 2 by a bolt 5, and the engaging piece 12 is engaged by a bolt 50 to a stay 7 attached to the pedal bracket 6. At this time, the joint 20 between the front pillar 2 and the reinforcing member 1 is formed so as to bulge toward the passenger compartment in order to increase the rigidity of the joint 20. In this manner, the pedal bracket 6 is supported in the left-right direction with respect to the front pillar 2 through the reinforcing member 1 so as to increase the support rigidity in the left-right direction. In addition, the engagement portion 73 between the engagement piece 12 of the reinforcing member 1 and the stay 7 attached to the pedal bracket 6 receives a load of a predetermined amount or more from the front of the vehicle, and the dash panel 8 moves rearward. When moved, the bolt 50 is pulled out in the vehicle rearward direction from the notch 13 formed in the engagement piece 12 and opened in the vehicle rearward direction, and the connection between the stay 7 and the reinforcing member 1, that is, The left and right support of the pedal bracket 6 is released.
[0020]
By configuring the left and right support between the pedal bracket 6 and the front pillar 2 as described above, when a load equal to or more than a predetermined value is input from the front of the dash panel 8 to the vehicle, the dash panel 8 and the like are moved rearward. Even when the front pillar 2 is moved, the support between the pedal bracket 6 and the reinforcing member 1 is released, so that the load applied around the front pillar 2 can be reduced. Therefore, when a load equal to or more than a predetermined value is input to the dash panel 8 from the front of the vehicle, the deformation of the door opening can be prevented, and the door is not opened in an emergency. You can escape and improve your safety.
[0021]
Further, as shown in FIG. 4, by supporting the pedal bracket 6 on the front pillar 2 via the reinforcing member 1, the pedal bracket 6, the dash panel 8, the front pillar 2 and the reinforcing member 1 form a closed cross section. Therefore, the rigidity of the dash panel 8 can be increased. As a result, the rigidity of the joint between the dash panel 8 and the pedal bracket 6 is increased, and the pedal bracket 6 vibrates due to vibration of the engine during idling or the like. It is possible to reduce the load on the joint between the stay and the joint between the stay 7 and the pedal bracket 6. In addition, by supporting the pedal bracket 6 in the left-right direction, the support rigidity of the pedal bracket 6 is increased as a whole, including the front-back and up-down directions, so that the vibration of the pedal bracket 6 can be suppressed, and the vibration of the pedal bracket 6 can be suppressed. The noise generated due to the above can be reduced. In addition, since the rigidity of each portion around the support structure of the pedal bracket and the support rigidity of each support portion are increased, the weight around the support structure of the pedal bracket can be reduced, and the cost increases by employing the reinforcing member 1. I can make up for it. In addition, in the pedal bracket support structure according to the present invention, since the support rigidity of the pedal bracket 6 is increased in the left-right direction, the brake in which the arm portion is bent in either the left or right direction as shown in FIG. When the driver applies a pedaling force to the pedal, the load is applied to the left and right directions of the pedal bracket 6, whereby the pedal bracket is shaken in the left and right directions, thereby avoiding a problem that the driver feels uncomfortable.
[0022]
The shape of the reinforcing member is not limited to the shape of the present embodiment, and can be variously changed. For example, the shape of the engagement piece of the reinforcing member is such that the connection between the reinforcing member and the pedal bracket is released when a load equal to or more than a predetermined value is input to the dash panel from the front of the vehicle. The shape may be such that the connection between the reinforcing member and the pedal bracket is released by means other than the means shown in the present embodiment.
[0023]
In the present embodiment, the stay attached to the pedal bracket is attached to the cowl extending between the left and right front pillars via the bracket, but the bracket is not always necessary and is an optional matter. .
[Brief description of the drawings]
FIG. 1 is a front view of a pedal bracket support structure according to the present invention.
FIG. 2 is a side view of a pedal bracket support structure according to the present invention.
FIG. 3 is a perspective view of a reinforcing member.
FIG. 4 is a sectional view taken along the line IV-IV in FIG. 1;
FIG. 5 is an explanatory diagram of a conventional example.
FIG. 6 is an explanatory diagram of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Reinforcement member 2 Front pillar 3 Cowling 6 Pedal bracket 8 Dash panel

Claims (1)

A structure for supporting a pedal bracket joined to a dash panel separating an engine room and a vehicle compartment,
The pedal bracket also extends in the vehicle width direction coupled with right and left front pillars, and with and is supported in the vertical direction against the cowl or the support member you located above the pedal bracket, to the front pillar The cowl and the support member are supported in the vehicle width direction via a reinforcing member formed separately from the cowl ,
A pedal bracket support structure, wherein when a load equal to or more than a predetermined value is input from the front side of the dash panel to the vehicle, the connection between the pedal bracket and the reinforcing member is released.

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