JP2000264180A - Vehicle pedal attaching structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle pedal attaching structure with a lightweight and simple configuration allowing certain forward displacement of a pedal at the time of input of a load from the front of a vehicle. SOLUTION: A pedal bracket 6 supporting a brake pedal 5 is provided over between a dash panel 2 displacing to rearward of a vehicle body at the time of input of a prescribed load or above and a cowl panel 3 behind the dash panel 2. The pedal bracket 6 is fixed to the dash panel 2 in the back-and-forth direction, and is fixed to the cowl panel 3 such that the pedal bracket 6 can displace in the back-and-forth direction by the action of the prescribed load or above. A reinforcing member 15 in a lower part of the dash panel 2 hardly deforming even at the time of input of the prescribed load or above from the front of the vehicle body and a rear part of the pedal bracket 6 are connected with a tension member 17. Thereby, when the dash panel 2 displaces rearward, the pedal bracket 6 turns obliquely rearward and downward to displace the pedal 7 forward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle pedal mounting structure such as a brake pedal, and more particularly to a vehicle pedal mounting structure for displacing a pedal forward when a load is input from the front of a vehicle body. is there.

[0002]

2. Description of the Related Art A conventional brake pedal mounting structure has a structure in which a pedal bracket for swingably supporting a brake pedal is fixed to a dash panel. However, if the dash panel is displaced rearward when a predetermined load or more is input from the front of the vehicle body, there is a problem that the brake pedal is also displaced rearward accordingly.

Therefore, for example, Japanese Patent Application Laid-Open No. 10-181637
As disclosed in Japanese Unexamined Patent Application Publication No. H11-264, there has been proposed a configuration in which when a dash panel is displaced rearward, a brake pedal is displaced forward accordingly. The structure will be described with reference to FIG. 6. A front bracket 33 and a rear bracket 33, which are hinged to each other, support a pedal bracket 32 that supports a brake pedal 31 connected to a brake booster 36 so as to be able to swing back and forth. 34, and the front bracket 33 is fixed to the dash panel 35 at the position where the brake booster 36 is disposed.
The rear portion is displaced rearward at the time of the load input by a guide surface 39 extending obliquely rearward and downward on a guide bracket 38 provided on a pillar-to-pillar 37 which is a member that hardly displaces rearward even at the time of the load input. The upper end of the brake pedal 31 is pivotally supported on the rear bracket 34 by a pivot shaft 40.

According to this configuration, when a load equal to or more than a predetermined value is input from the front of the vehicle body as indicated by a white arrow in FIG. 6 and the dash panel 35 and the brake booster 36 are displaced obliquely upward and rearward, as indicated by phantom lines. At the same time, the rear part of the rear bracket 34 is displaced obliquely rearward and downward along the guide surface 39 of the guide bracket 38, whereby the lower pedal 41 of the brake pedal 31 whose upper end is pivotally supported by the rear bracket 34 is indicated by an arrow. It can be displaced forward as shown.

[0005]

However, in the structure disclosed in FIG. 6, the pillar-to-pillar 37 and the guide bracket 38 having high rigidity are provided, and the pedal bracket 32 is provided.
Also needs to be composed of the front bracket 33 and the rear bracket 34, so that large-sized components are required, the number of components is large, and components having a complicated configuration are required, resulting in an increase in cost and weight. is there.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described conventional problems, and provides a vehicle pedal mounting structure that can be securely displaced forward even when a load is input from the front of a vehicle body, with a lightweight and simple configuration. With the goal.

[0007]

According to the present invention, there is provided a vehicle pedal mounting structure comprising: a first vehicle body-side member displaced rearward when a predetermined load or more is input from the front of the vehicle body; And is fixed to the first body-side member, and is fixed to the second body-side member so as to be displaceable in the front-rear direction by an action of a predetermined load or more. A pedal bracket that swingably supports an upper part of the pedal, and a second pedal bracket below the first vehicle body member.
One end is fixed to the vehicle body-side member, which is located in front of the position where the pedal bracket is fixed to the vehicle body-side member and is hard to be displaced even when a predetermined load or more is input from the front of the vehicle body, and the other end is connected to the pedal bracket. When the first vehicle body-side member is displaced rearward when a load equal to or more than a predetermined value is input from the front of the vehicle body, the pedal bracket is also displaced rearward. The pivoting member pivots obliquely rearward and downward through the tensioning member around one end of the tensioning member, so that the pedal bracket and the upper portion of the pedal supported by the pedaling bracket move downward with the rearward displacement. The pedal can be turned to displace the lower part of the pedal forward.

Further, if the fixing portion of the pedal bracket to the second vehicle body-side member is connected to another portion of the pedal bracket via a fragile portion which breaks when a load exceeding a predetermined value is inputted, When the above load is applied, the fragile portion is broken and the pedal bracket can be reliably displaced rearward and turned downward, and the fixing surface between the pedal bracket and the second vehicle body member is the pedal bracket. , And a stable action can be ensured regardless of the fastening torque of the fixing bolt.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the vehicle pedal mounting structure of the present invention is applied to a brake pedal will be described below.
This will be described with reference to FIGS.

1 and 2, reference numeral 1 denotes a vehicle compartment, 2 denotes a dash panel constituting a lower front surface of a front end thereof, and a lower end thereof is connected to a floor panel constituting a floor surface of the vehicle compartment 1. ing. Reference numeral 3 denotes a cowl panel disposed above the dash panel 2 in the lower part of the front end of the passenger compartment 1 and behind the dash panel 2. 4 is a brake booster, and a dash panel 2
Is disposed on the opposite side to the inside of the vehicle compartment 2, and its rod 4 a protrudes inside the vehicle compartment 1.

Reference numeral 5 denotes a brake pedal. The upper end of the brake pedal is swingably supported in the front-rear direction by a pedal bracket 6, and a pedal 7 for foot operation is fixed to the lower end.
The pedal bracket 6 is made of sheet metal, is formed in a substantially U-shape in vertical cross section having an upper surface plate 6a and both side plates 6b, and has a mounting plate 6c that is in contact with the dash panel 2 from the front edge thereof, and is connected to the dash panel. 2 is fastened and fixed to the lower surface of the cowl panel 3 by bolts 8. 8a is the mounting plate 6
It is a bolt hole formed in c. On the other hand, the bolt holes of the bolts 8 in the upper plate 6a of the pedal bracket 6 are shown in FIG.
As shown in the figure, when the pedal bracket 6 is normally mounted, the bolt 8 is extended forward from a portion through which the bolt 8 penetrates, and the front portion is formed with a large diameter so that the head 8a of the bolt 8 can come out. It has a gourd-shaped elongated hole 9 made.

Reference numeral 10 denotes both side plates 6b of the pedal bracket 6.
The pivot bolts are arranged so as to penetrate the side plates 6b,
A cylindrical body 11 is rotatably fitted to the pivot bolt 10 between 6b. The upper end of the brake pedal 5 is
1 and a base end of a swing lever 12 is fixed to a side position of the brake pedal 5. Swing lever 1
A connecting member 13 provided at the distal end of the rod 4a of the brake booster 4 is connected to the distal end of the brake booster 4. Thus, when the pedal 7 is pushed forward to swing the brake pedal 5,
The rod 4 a of the brake booster 4 is configured to be pushed through the cylinder 11, the swing lever 12, and the connecting member 13. Reference numeral 14 denotes a coil spring which urges the brake pedal 5 to swing toward the initial position, and is disposed so as to be fitted on the cylindrical body 11, one end of which is provided on the brake pedal 5 and the other end thereof is provided on the upper surface plate 6 a of the pedal bracket 6. Locked.

A lower portion of the dash panel 2 is connected to a rear end of a front side member (not shown) of the vehicle body, has high rigidity, and is a portion that is difficult to be displaced when a load is input from the front of the vehicle body. Reinforcement member 1 having a substantially hat-shaped cross-section and extending in the vehicle width direction on the surface of the lower part of the vehicle 2 on the side of the cabin 2
5 is fixed.

A connecting piece 16 is fixed to a rear upper end portion of the side plate 6b inside the passenger compartment 2 of the pedal bracket 6, and a connecting ring 17a at one end of a tension member 17 such as a wire is fixed to the connecting piece 16 by a bolt 18. The connecting ring 17 b at the other end of the tension member 17 is fixed to the reinforcing member 15 with a bolt 19.

In the above configuration, when a load exceeding a predetermined value is input from the front of the vehicle body, the upper part of the dash panel 2 is largely displaced rearward while the lower part is displaced rearward as shown by the white arrow in FIG. The amount is relatively small. The pedal bracket 6 is also displaced rearward by the rearward displacement of the upper portion of the dash panel 2, and at this time, the rear end of the pedal bracket 6 is attached to the reinforcing member 15 at the lower portion of the dash panel 2 having a small rearward displacement amount by the tension member 17. , The rear end of the pedal bracket 6 is connected to the connecting ring 1 at the other end of the tension member 17 located forward and downward as shown by the arrow a.
7b is rotated obliquely rearward and downward. At this time, the bolts 8 for fastening the upper surface plate 6a of the pedal bracket 6 to the cowl panel 3 are fixed to the upper surface plate 6a.
As a is displaced backward, the pedal bracket 6 relatively moves toward the large-diameter portion in front of the gourd-shaped elongated hole 9 and breaks away. As a result, the rear end of the pedal bracket 6 is restrained by the tension member 17 and It rotates smoothly downward. Thus,
The pedal bracket 6 and the upper portion of the brake pedal 5 supported by the pedal bracket 6 rotate downward with the rearward displacement of the pedal bracket 6, and the pedal 7 at the lower end of the brake pedal 5
Is displaced forward as indicated by the arrow b.

In the above embodiment, an example is shown in which the bolt 8 breaks away from the large diameter portion in front of the gourd-shaped long hole 9 formed in the upper surface plate 6a of the pedal bracket 6, but FIG.
As shown in (a) and (b), a rectangular fixing portion 21 for fastening and fixing to the cowl panel 3 is formed at the rear end of the upper plate 6a of the pedal bracket 6, and a slit 22 is formed at the front edge thereof. The two side edges may be connected to other portions of the upper surface plate 6a via the semi-shear portions 23. The semi-shear portion 23 forms a fragile portion that breaks when a load equal to or greater than a predetermined value is input. Reference numeral 8a denotes a bolt hole formed at a substantially central portion of the fixing portion 21.

According to such a configuration, the pedal bracket 6 can be fixedly supported with high rigidity by strongly fastening and fixing the bolt 8 until a load exceeding a predetermined level is input. When the load is applied, the fragile portion including the semi-shear portion 23 is surely broken, and the fixed portion 21 breaks away, so that the pedal bracket 6 can be reliably displaced rearward and turned downward.
Also, as shown in FIG. 1, even if the fixing surface between the pedal bracket 6 and the cowl panel 3 is not along the direction of displacement of the pedal bracket 6 (the direction of the arrow a), and regardless of the tightening torque of the bolt 8, The above action can be stably ensured by the judgment of the shearing portion 23.

FIG. 4C shows the structure of the fragile portion.
As shown in FIG. 7, V-notch portions 24 may be formed on both side edges of the fixing portion 21, and a similar effect can be obtained.

As shown in FIG. 5, instead of the structure shown in FIG. 3, a raised step 25 is provided at the rear end of the upper surface 6a of the pedal bracket 6, and a bolt 8 is inserted from the step 25a at the front end. Is formed, a rectangular insertion opening 26a is formed in the step surface portion 25a, and a fixing metal fitting 27 having an insertion slit 27a through which the raised step portion 25 can be inserted from the rear through the insertion opening 26a is cowled. A bolt 8 is inserted into a bolt hole 28 and a long groove 26 provided in the fixing bracket 27 and fastened and fixed to the cowl panel 3.
The rear end portion of the upper surface portion 6a may be pinched and fixed so as to be displaceable rearward when a load equal to or more than a predetermined value is input.

[0020]

According to the mounting structure for a vehicle pedal of the present invention, the pedal bracket, which swingably supports the upper portion of the pedal as described above, can be moved rearward when a predetermined load or more is input from the front of the vehicle. It is disposed between the displaced first vehicle body-side member and the second vehicle body-side member behind the first vehicle body-side member, and is fixed to the first vehicle body-side member. And the pedal bracket and the pedal bracket are located below the first vehicle body member and forward of the pedal bracket fixing position on the second vehicle body member, and at least a predetermined distance from the front of the vehicle body. Since the vehicle body-side member, which is hardly displaced even when a load is input, is connected by a tension member, when a load of a predetermined amount or more is input from the front of the vehicle body, the pedal bracket is inclined about one end of the tension member located at the lower front. Rectangular downwards will be rotated, so that the pedal bracket and the top of the supported pedal which pivots downwardly with the rearward displacement of the lower portion of the pedal can be displaced forward. In addition, since it is only necessary to connect the pedal bracket with a tension member such as a wire, a large effect can be achieved with a low-cost and lightweight configuration.

Further, when the fixed portion of the pedal bracket to the second vehicle body-side member is connected to another portion of the pedal bracket through a fragile portion which breaks when a predetermined load or more is input, the load exceeding the predetermined value is obtained. When the load is applied, the pedal bracket is reliably displaced rearward due to the breakage of the fragile portion, can be rotated downward by the tension member, and the fixing surface between the pedal bracket and the second vehicle body side member is A stable action can be ensured regardless of the displacement direction of the pedal bracket and regardless of the tightening torque of the fixing bolt.

[Brief description of the drawings]

FIG. 1 is a side view of a brake pedal mounting structure according to an embodiment of the present invention.

FIG. 2 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 3 is a detailed perspective view of a portion B in FIG. 1 of the pedal bracket.

4A and 4B show a configuration of a pedal bracket in a brake pedal mounting structure according to another embodiment of the present invention, wherein FIG. 4A is a perspective view of a main part, FIG. 4B is a cross-sectional view of FIG.
(C) is a sectional view similar to (b) of the modification.

FIG. 5 is a perspective view of a main part of a pedal bracket in a brake pedal mounting structure according to still another embodiment of the present invention.

FIG. 6 is a side view of a conventional brake pedal mounting structure.

[Explanation of symbols]

 2 Dash panel (first body-side member) 3 Cowl panel (second body-side member) 5 Brake pedal 6 Pedal bracket 15 Reinforcement member (Vehicle-side member that is difficult to be displaced at the time of load input) 17 Tension member 21 Fixed portion 23 Half Shear part (fragile part) 24 V notch part (fragile part)

Claims (2)

[Claims] 1. A system according to claim 1, wherein a first vehicle body-side member displaced rearward when a predetermined load or more is input from the front of the vehicle body and a second vehicle body-side member disposed rearward of the first vehicle body member. Is disposed and fixed to the first vehicle body side member, and the second
A pedal bracket fixed to the vehicle body-side member so as to be displaceable in the front-rear direction by the action of a predetermined load or more and swingably supporting an upper portion of the pedal; and a second vehicle body below the first vehicle body-side member. A tension member, one end of which is fixed to the vehicle body side member which is located in front of the pedal bracket fixing position to the side member and which is difficult to be displaced even when a load exceeding a predetermined value is input from the front of the vehicle body, and the other end of which is connected to the pedal bracket; A vehicle pedal mounting structure comprising: 2. A fixed portion of the pedal bracket to the second vehicle body-side member is connected to another portion of the pedal bracket via a fragile portion that breaks when a load exceeding a predetermined level is input. The vehicle pedal mounting structure according to claim 1, wherein: