JP4568166B2 - Pedal reverse control device - Google Patents

Description

  The present invention relates to a pedal retraction suppressing device that suppresses retraction of a pedal such as a brake pedal when a vehicle collides forward.

  2. Description of the Related Art Conventionally, there has been known a pedal reverse suppression device that prevents the brake pedal and a driver's foot from interfering with each other by suppressing the brake pedal from moving backward with respect to the vehicle body at the time of a frontal collision of the vehicle. (For example, refer to Patent Document 1).

  In this device, when the vehicle body is deformed and the entire brake pedal is retracted at the time of a frontal collision of the vehicle, a brake is applied by a steering hanger bracket (steering support) provided on a cross beam member (instrument reinforcement) that connects the left and right front pillars. The lower side of the pedal support shaft is restricted. As a result, the brake pedal is pivoted about the support shaft so that the tread surface side of the brake pedal moves in the front direction of the vehicle and moves in the front direction of the vehicle from the passenger compartment.

  Also, a brake pedal is known in which the connection between the brake pedal and the pedal rod (push rod) of the brake booster connected to the brake pedal is canceled during a frontal collision of the vehicle (see, for example, Patent Document 2). ).

  6A and 6B are diagrams showing a connection state between a conventional brake pedal and a pedal rod of a brake booster, wherein FIG. 6A is an enlarged perspective view of a main part showing a normal mounting state, and FIG. 6B is a pedal at the time of a front collision. It is a principal part expansion perspective view which shows the state of a rod.

The conventional brake pedal is pivotally supported at the upper end by a pedal bracket so that the brake is effective when the driver steps on the step formed at the lower end to operate the foot. Yes. As shown in FIG. 6A, the pedal rod 210 of the brake booster 200 is connected to the substantially central portion of the brake pedal 100.
Usually, a pedal bracket (not shown) is attached to the dash panel 300 on the front end side and attached to a steering hanger (not shown) on the rear end side.

In the conventional vehicle, as shown in FIG. 6B, the brake booster 200 is pushed by the load from the engine room side and the dash panel 300 is deformed to the vehicle rear side, as shown in FIG. The bracket is crushed. Due to the deformation of the dash panel 300, the pedal rod 210 is configured to be broken due to a load or to be disconnected as in the invention of Patent Document 2.
Japanese Patent No. 3329790 (paragraphs 0031 and 0049, FIGS. 1 to 4) JP 2003-220935 A (paragraph 0024, FIGS. 1 to 3)

However, in the pedal retraction suppression device of Patent Document 1, since the pressing portion (displacement control means) receives the brake pedal that has retreated during a forward collision while deforming, the strength at which the pressing portion is deformed by being pressed by the brake pedal is set in advance. There is a problem that must be kept.
In such a pedal retraction suppression device, it is desired to prevent the brake pedal from retreating at the time of a forward collision without providing a member such as the pressing portion.

  Further, in the pedal retraction suppression device shown in Patent Document 2 and FIGS. 6A and 6B, the pedal rod is more efficiently broken or separated at the time of a forward collision, and the brake pedal retreats at this time. It is desired to further suppress this.

  Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pedal retraction suppressing device that can prevent the retraction of the pedal with a simple structure at the time of a forward collision.

In order to solve the above problem, the pedal retraction suppression device according to claim 1 is a pedal bracket whose front is fixed to a dash panel at the front of the vehicle, and is supported by the pedal bracket so as to be pivotable in the vehicle front-rear direction. In a pedal retraction suppression device comprising a pedal and a mounting bracket for fixing the pedal bracket and the steering hanger, a fixing point between the mounting bracket and the steering hanger is arranged at a substantially center in the vehicle width direction of the mounting bracket. The mounting bracket and the pedal bracket are fixedly disposed at a fixed point with respect to the vehicle width direction of the mounting bracket, and the mounting bracket on the vehicle left side and the vehicle right side of the pedal bracket Patent that the rigidity of the fixed-point side of a pedal bracket is set lower than the other side To.
Here, the “fixed point” refers to a portion fixed with a fixing tool such as a bolt.

According to the first aspect of the present invention, the mounting bracket and the steering hanger are fixed substantially at the center in the vehicle width direction of the mounting bracket, and the mounting bracket and the pedal bracket are from the center with respect to the vehicle width direction of the mounting bracket. It is fixed at the shifted position.
For this reason, if the engine installed at the front of the vehicle moves to the rear of the vehicle during a frontal collision of the vehicle, the dash panel is pushed and deformed to rise to the passenger compartment side. The bracket and the pedal bracket are pressed by a load from the dash panel, and are twisted and deformed so as to rotate around a fixing point between the steering hanger having a strength and the mounting bracket. As a result, the lower portion of the mounting bracket that is twisted and deformed interferes with the pedal attached to the pedal bracket, and the pedal can be prevented from further retreating.
Further, for example, when the pedal rod is installed on the pedal, the pedal is retracted effectively because the mounting bracket is torsionally rotated to restrict the backward movement of the pedal.

Further, according to the first aspect of the invention, in the vehicle left side surface portion and the vehicle right side surface portion of the pedal bracket, the rigidity on the fixing point side of the mounting bracket and the pedal bracket is set lower than the other side, The rigidity of the left and right sides of the pedal bracket is different. For this reason, when the dash panel is pushed and deformed so as to rise to the vehicle rear side (vehicle compartment side) at the time of a frontal collision of the vehicle, the pedal bracket is bent so as to fall on the low rigidity side and the deformation is promoted. The whole is deformed so as to be twisted in the side surface direction (vehicle width direction). As a result, the lower part of the mounting bracket that is twisted and deformed interferes with the pedal, and the pedal can be prevented from further retreating.
In addition, for example, when a pedal rod is installed on the pedal, the mounting bracket is assembled so that it can be easily twisted and rotated. Is done.

According to a second aspect of the present invention, there is provided a pedal bracket whose front is fixed to a dash panel at the front of the vehicle, a pedal supported by the pedal bracket and rotatable in the vehicle front-rear direction, the pedal bracket, and a steering hanger. In the pedal retraction suppressing device comprising: a mounting bracket for fixing the mounting bracket; and a fixing point between the mounting bracket and the steering hanger is arranged at a substantially center in the vehicle width direction of the mounting bracket, and the mounting bracket and the pedal bracket The fixing point is arranged so as to be shifted from the center with respect to the vehicle width direction of the mounting bracket, and the pedal is formed with a depression at an upper part of a connecting point of a pedal rod connected to the pedal.
Here, the “connection point” refers to a portion connected by a connecting tool such as a support pin.

According to the second aspect of the present invention, the pedal is pressed by the pedal rod installed on the dash panel when the dash panel is deformed to the passenger compartment side at the time of a forward collision. At this time, since the depression is formed in the upper part of the connection point of the pedal, the pedal rod turns around the connection point and enters the depression. Then, since the range of rotation of the pedal rod around the connection point is increased, bending deformation is promoted, and the pedal rod is greatly bent and broken. As a result, the pedal will not retract further.

  According to the pedal retraction suppression device of the first aspect, the pedal bracket is twisted and deformed so as to rotate around a fixed point between the steering hanger and the mounting bracket at the time of a frontal collision of the vehicle so that the pedal does not retreat. can do. That is, it is possible to prevent the pedal from retreating with a simple structure at the time of a forward collision.

Furthermore, according to the pedal retraction suppression device of the first aspect , the pedal bracket is set so that the rigidity on the fixing point side between the mounting bracket and the pedal bracket is set lower than that on the other side, so that the pedal bracket can be Since the bracket is buckled and deformed so as to bend toward the side surface portion of the vehicle having low rigidity, the pedal can be prevented from moving backward.

According to the pedal descent-restricting device according to claim 2, pedal, during a frontal collision, by recesses at the top of the connecting point of the pedal rod is formed, for breakage enters the pedal rod the recess, the pedal is retracted You can avoid it.

Next, the best mode for carrying out the invention (hereinafter referred to as “embodiment”) will be described with reference to FIGS.
Hereinafter, the case where a pedal is used as a brake pedal will be described as an example of an embodiment of the present invention. In the following description, “front” of the vehicle is the vehicle traveling direction side, “rear” is the backward direction side of the vehicle, “upper” is the upper side in the vertical direction, “lower” is the lower side in the vertical direction, and “left and right” is The vehicle width direction side.
FIG. 1 is a cross-sectional view of a main part showing a pedal retraction suppressing device according to an embodiment of the present invention.

≪Pedal reverse control device≫
As shown in FIG. 1, the pedal retraction suppressing device S suppresses the brake pedal 3 and the driver's foot from moving backward with respect to the vehicle body at the time of a frontal collision of the vehicle. It is a device that avoids interference. The pedal retraction suppressing device S includes a pedal bracket 4 whose front end (front) side is fixed to the dash panel 1, a brake pedal 3 supported by the pedal bracket 4 and capable of rotating in the front-rear direction, A mounting bracket 5 for fixing the steering hanger 6, a pedal rod 2 a connected to the brake pedal 3, and bolts B <b> 1 and B <b> 2 are provided. The pedal retraction suppression device S includes a bolt (fixed point) B2 that fastens the mounting bracket 5 and the steering hanger 6 at a substantially central position in the vehicle width direction of the mounting bracket 5, and a bolt that fastens the mounting bracket 5 and the pedal bracket 4. (Fixed point) B1 is shifted from the center with respect to the vehicle width direction of the mounting bracket 5 (see FIG. 2).

≪Dash panel≫
The dash panel 1 is a partition wall that divides an engine room on the vehicle front side where an engine or the like is disposed and a passenger compartment where an occupant is accommodated. A cowl box portion 8 is connected to the upper portion of the dash panel 1. Has been. A brake booster 2 is attached to the dash panel 1 via a pedal bracket 4.

≪Brake booster≫
When the driver steps on the brake pedal 3, the brake booster 2 increases the braking force by applying a force such as negative pressure of the engine or compressed air in addition to the pedaling force, thereby increasing the braking force during braking. It is a device for reducing. The brake booster 2 is disposed on the engine room side of the dash panel 1 by a plurality of bolts B3 and nuts N2 with the pedal rod 2a protruding toward the vehicle compartment.
The pedal rod 2a is a rod-like member for transmitting a stepping operation of the brake pedal 3 to the brake booster 2 to operate the pedal, and a rear end thereof is fastened to a connecting fitting 32 described later.

≪Pedal assembly≫
FIG. 2 is an enlarged perspective view of a main part showing a pedal assembly of the pedal retraction suppressing device according to the embodiment of the present invention.
As shown in FIG. 2, the pedal assembly A includes a pedal bracket 4 whose front end is attached to the brake booster 2 (see FIG. 1), and an upper end that is pivotally supported by the pedal bracket 4 so that the pedal rod 2a is The brake pedal 3 that is connected and the mounting bracket 5 that is installed on the rear surface side of the pedal bracket 4 and is fixed to the lower surface of the steering hanger bracket 61 of the steering hanger 6 are assembled. The pedal assembly A assembled with these members has a vehicle front side attached to the dash panel 1 and a vehicle rear side attached to the steering hanger bracket 61.

≪Brake pedal≫
The brake pedal 3 is configured such that a support shaft 31 installed at the upper end is pivotally supported by the pedal bracket 4 so as to be pivotable in the front-rear direction, and the driver steps on the step 3 a formed at the lower end. , It is configured to turn forward and brake. The brake pedal 3 is formed of, for example, a substantially square steel plate as viewed from the side, and the step portion 3a is welded to the lower end portion.

FIG. 3 is a view showing the pedal retraction suppressing device according to the embodiment of the present invention, and is an enlarged exploded perspective view of a main part showing a state when the pedal rod is broken.
As shown in FIG. 3, the brake pedal 3 is provided with a connecting bracket 32 that is connected to the pedal rod 2 a of the brake booster 2 in a substantially central portion so as to be rotatable. The brake pedal 3 has a recess 3b formed in a notch at the upper front end portion where a support pin (connection point) P that pivotally supports a connecting fitting 32 at the rear end of the pedal rod 2a connected to the brake pedal 3 is installed. ing.
The brake pedal 3 corresponds to a “pedal” described in the claims. This pedal may be a foot-operated side brake pedal, an accelerator pedal, or a clutch pedal.

  The recess 3b is formed on a turning trajectory in which a fastening plate portion 32a that is screwed to the pedal rod 2a is turned around a support pin P that is a turning center of the coupling fitting 32 that is pivotally supported by the brake pedal 3. Yes. The recess 3b is formed in a substantially semicircular cutout at the front end of the brake pedal 3 so that the fastening plate portion 32a enters when the pedal rod 2a is broken.

  The connection fitting 32 is a member for connecting the pedal rod 2a and the brake pedal 3 and is made of a substantially L-shaped metal piece. The connection fitting 32 is rotatably attached to the brake pedal 3 by a support pin P serving as a shaft rod at the base end portion. In the connection fitting 32, a nut N1 in which a screw portion 2b formed at the tip of the pedal rod 2a is screwed to a fastening plate portion 32a bent in an L shape is fixed by electric resistance welding or the like.

FIG. 4 is an enlarged bottom view of the main part showing the pedal assembly of the pedal retraction suppressing device according to the embodiment of the present invention.
As shown in FIG. 4, the support shaft 31 functions as a rotation shaft of the brake pedal 3 and functions as a fixture for integrally connecting and fixing support plate members 41 and 42 and a connection member 43 described later. It is a member that accomplishes. The support shaft 31 is made of a metal pin disposed with its axial direction facing the vehicle width direction.

≪Pedal bracket≫
The pedal bracket 4 includes a left support plate member 41 extending in the front-rear direction, a right support plate member 42 disposed substantially opposite to the right side along the support plate member 41, and the support plate members 41, 42. The connecting member 43 interposed therebetween is integrally held by the support shaft 31. In the case of a right-hand drive vehicle, the pedal bracket 4 is disposed on the right side of a steering shaft (not shown). Since the pedal bracket 4 is formed with a bent portion 42b at a substantially central portion of the right support plate member 42, the rigidity on the right support plate member 42 side is lower than that on the left support plate member 41 side and is strong. It has a distorted configuration. The pedal bracket 4 has a mounting bracket 5 fixed to the connecting member 43 by a bolt B1 disposed near the right support plate member 42 having a bent portion 42b. For this reason, the pedal bracket 4 is set such that the rigidity on the bolt B1 side (fixed point side) for fixing the mounting bracket 5 and the pedal bracket 4 is lower than that on the left support plate member 41 side (the other side). The pedal bracket 4 has the front end portion fixed to the passenger compartment side of the dash panel 1 (see FIG. 1) with the fastening plate portions 41 a and 42 a of the left and right support plate members 41 and 42, and the rear end portion via the mounting bracket 5. It is attached to the vehicle body by being fixed to the steering hanger 6. As a result, the pedal bracket 4 is arranged to be installed at the corners of the dash panel 1 and the steering hanger 6.

<Support plate member (vehicle left side surface, vehicle right side surface)>
As shown in FIG. 4, the left and right support plate members 41 and 42 have fastening plate portions 41 a and 42 a for attaching the bolts B <b> 3 (see FIG. 1) at the front end portions bent at right angles, and are formed at the rear end portions. The connecting member 43 and the support shaft 31 are installed. The support plate members 41 and 42 are made of a steel plate or the like whose upper end edge side and lower end edge side are bent in an L shape to improve strength (see FIG. 2).
The left support plate member 41 is formed in a substantially linear shape in the front-rear direction and is disposed on the left side surface of the connecting member 43. The left support plate member 41 corresponds to a “vehicle left side surface portion” described in the claims.
The right support plate member 42 is formed to bend in a step shape in the front-rear direction by having a bent portion 42b at a substantially central portion. In the vicinity of the rear end portion of the support plate member 42, a bolt B1 for connecting the connecting member 43 and the mounting bracket 5 is disposed. The right support plate member 42 corresponds to a “vehicle right side surface portion” recited in the claims.

The connecting member 43 is a member for supporting the left and right support plate members 41, 42 substantially in parallel and holding the pedal bracket 4 to the mounting bracket 5, and has a substantially U-shaped cross section when viewed from the bottom. Etc. The connecting member 43 includes a connecting portion 43a that is flat in the vertical direction, a pair of holding pieces 43b and holding pieces 43c that extend forward from the left and right ends of the connecting portion 43a, and a downward extending from the rear end of the connecting portion 43a. The extended portion 43d (see FIG. 2) is integrally formed.
The connecting portion 43a is a place where the mounting bracket 5 is attached by the bolt B1. The rear surface of the connecting portion 43a is disposed in close contact with the front surface of the mounting bracket 5, and a hole (not shown) through which the bolt B1 is inserted at a position closer to the support plate member 42 on the right side than the center in the vehicle width direction. ) Is drilled.
The left holding piece 43 b extends from the left end of the connecting portion 43 a to the inner side wall of the support plate member 41, and the support plate member 41 is connected by the support shaft 31.
The right holding piece 43 c extends from the right end of the connecting portion 43 a to the inner side wall of the support plate member 42, and the support plate member 42 is connected by the support shaft 31.
The extending portion 43d is, for example, a bracket on which a brake switch (not shown) is installed (see FIG. 2).

≪Mounting bracket≫
The mounting bracket 5 shown in FIG. 4 is a member for mounting the pedal bracket 4 to the steering hanger bracket 61 of the steering hanger 6 and is made of a substantially rectangular steel plate or the like when viewed from the side (see FIGS. 1 and 2). . The mounting bracket 5 is formed by integrally forming a bracket fixing portion 5a, a hanger fixing portion 5b, and a locking piece 5c.

The bracket fixing portion 5a is a portion that is arranged so as to be in close contact with the connecting portion 43a of the connecting member 43 and connects the pedal bracket 4 that is fixed by the bolt B1. Similarly to the connecting portion 43a, the bracket fixing portion 5a is formed so as to be substantially flat in the vertical direction, and is a hole through which the bolt B1 is inserted at a position closer to the support plate member 42 on the right side from the center in the vehicle width direction. (Not shown) is perforated. A part of the lower portion of the bracket fixing portion 5a interferes with the rear end portion of the brake pedal 3 and restricts the rotation range in the vehicle compartment direction at the time of a collision.
Further, the place where the bolt B1 is disposed corresponds to a “fixing point between the mounting bracket and the pedal bracket” described in the claims.

The hanger fixing portion 5b is a portion that is formed obliquely along the lower surface so as to be in close contact with the lower surface of the steering hanger bracket 61 and is fixed to the steering hanger bracket 61 with a bolt B2. A hole (not shown) of the bolt B2 drilled in the hanger fixing portion 5b is formed at substantially the center of the hanger fixing portion 5b.
The location where the bolt B2 is disposed corresponds to a “fixing point between the mounting bracket and the steering hanger” recited in the claims.

≪Steering hanger≫
A steering hanger 6 shown in FIG. 1 is a member for fixing a steering column in which a steering shaft (not shown) is installed to a vehicle body, and a steering hanger bracket 61 made of a steel plate having rigidity and the like and extends in the vehicle width direction. It is comprised from the cross beam member 62 which consists of the steel pipe etc. which were provided and were provided with rigidity. The steering hanger 6 has rigidity and strength that are difficult to move backward in the vehicle compartment direction even when the vehicle collides forward.

The steering hanger bracket 61 is a member for holding the steering column by bolts and nuts (not shown), and is fixed to the lower side of the cross beam member 62.
The cross beam member 62 is a pipe for reinforcing a vehicle body that is installed between front pillars (not shown) installed on the left and right sides of the vehicle body, and is installed at an upper portion of the mounting bracket 5.

≪Action≫
Next, the operation of the pedal retraction suppressing device according to the embodiment of the present invention will be described with reference to FIGS.
Normally, the brake pedal 3 is in a stable state by a support shaft 31 and a pedal rod 2a installed on the pedal bracket 4 as shown in FIG. And if a driver | operator steps on the step part 3a and performs brake operation, it will rotate to the front centering on the spindle 31, will press the pedal rod 2a, and will brake a vehicle.

  When the vehicle collides forward, the brake booster 2 shown in FIG. 1 is pushed by a load (pressing force) from the engine room side due to movement of the engine or the like, so that the dash panel 1 is deformed to the vehicle rear side. Since the brake booster 2 and the pedal rod 2a are installed in a slanted state so as to be slightly lowered to the rear side, the pedal rod 2a presses the connecting fitting 32 diagonally downward as indicated by the arrow D due to the deformation of the dash panel 1. To do.

  Then, as shown in FIG. 3, the connection fitting 32 rotates in the backward direction of the arrow E around the support pin P. At this time, the brake pedal 3 is largely rotated in the direction of arrow E due to the formation of the recess 3b on the rotation locus of the fastening plate portion 32a of the connection fitting 32 that rotates about the support pin P. As a result, as shown in FIG. 3, the pedal rod 2 a breaks near the opening end of the nut N <b> 1, the connection with the brake pedal 3 is released, and the force that presses the brake pedal 3 rearward and the brake pedal 3. The retreat of is suppressed. For this reason, it can eliminate that brake pedal 3 contacts a driver's foot.

  Further, the backward load of the arrow C presses the fastening plate portions 41a and 42a of the left and right support plate members 41 and 42 of the pedal bracket 4, as shown in FIG. Since the right support plate member 42 has a bent portion 42b, when a load in the rearward direction of the arrow C is applied, the stress concentrates on the bent portion 42b and deforms so as to be twisted in the right direction of the arrow F. To do.

  Further, the load in the direction of arrow F presses the right side of the bracket fixing portion 5 a of the mounting bracket 5. Since the steering hanger 6 has rigidity, it hardly moves during a collision. The mounting bracket 5 does not move because the center portion of the hanger fixing portion 5b is firmly fastened to the steering hanger 6 with the bolt B2, so that the mounting bracket 5 rotates in the rearward direction of the arrow G around the bolt B2. Torsional deformation. As a result, a pressing force is generated on the left side of the mounting bracket 5 so as to push the brake pedal 3 and the left support plate member 41 in the forward direction by applying a load that rotates in the forward direction of the arrow H.

FIG. 5 is a view showing the pedal retraction suppressing device according to the present invention and is an enlarged perspective view of a main part showing a state of the brake assembly at the time of a forward collision.
As shown in FIG. 5, when the pedal assembly A receives a load in the direction of arrow C at the time of a collision, the bolt B2 is firmly screwed onto the rigid steering hanger 6 (see FIG. 1) to move (turn). Without being kept facing upward. For this reason, the mounting bracket 5 rotates the lower surface of the inclined steering hanger bracket 61 around the bolt B2 in the front-rear direction (arrow G and H directions shown in FIG. 4). Then, the right side of the hanger fixing portion 5b is regulated by contacting the lower surface of the steering hanger bracket 61 while turning about the bolt B2 in the rearward direction and bent to the rear side of the arrow N, and the bracket fixing portion 5a. The right side is bent so as to be crushed upward in the arrow L direction. On the other hand, the left side of the hanger fixing portion 5b is rotated downward about the arrow M by the amount that the right side of the mounting bracket 5 is rotated upward in the direction of the arrow L while rotating around the axis about the bolt B2. Rotate and deform to twist downward.
That is, the mounting bracket 5 does not move in the front-rear direction because the hanger fixing part 5b is firmly fixed to the steering hanger 6 by the bolt B2, and the moment is moved back and forth around the bolt B2 by the moment (arrows H and G). The left and right end portions are twisted so as to rise and descend while rotating in the direction).

  As a result, the brake pedal 3 supported by the support shaft 31 is twisted so that the mounting bracket 5 rotates about the bolt B2, and the front end portion of the connecting member 43 on which the support shaft 31 is installed is rearward. Therefore, the brake pedal 3 can be prevented from moving backward.

  In this way, when the vehicle collides forward, the pedal assembly A is deformed so that the whole is twisted around the axis about the bolt B2 by the bolt B2 firmly screwed to the steering hanger 6 shown in FIG. The retreat is suppressed. At this time, the pedal assembly A further includes a right support plate member 42 having a rigidity different from that of the support plate member 41 due to the bent portion 42b, and a bolt B1 provided at a position close to the right side of the mounting bracket 5 to further increase the bolt assembly. It is promoted to be deformed so as to be twisted about the axis about B2, and the mounting bracket 5 slides so as to push the upper portion of the brake pedal 3 back in the forward direction of the arrow H. As shown in FIG. 5, the lower portion of the bracket fixing portion 5 a of the mounting bracket 5 that has been twisted and deformed can interfere with the brake pedal 3 so as not to move back further.

When the vehicle collides forward, as shown in FIG. 3, the connecting bracket 32 is pushed by the pedal rod 2 a moving in the direction of arrow D, and rotates in the direction of arrow E around the support pin P. Then, it enters the recess 3b of the brake pedal 3 and comes into contact with the edge of the recess 3b. Since the depression 3b of the pedal rod 2a is formed, the pedal rod 2a is greatly bent and deformed as the connecting fitting 32 at the tip is largely rotated around the support pin P. Therefore, a large load is applied to the pedal rod 2a. When it starts, it is easy to break. For this reason, when the pedal rod 2a receives a load in the direction of the arrow D at the time of a collision, the pedal rod 2a moves in the direction of the arrow D and breaks, and the lower part of the brake pedal 3 can be prevented from moving to the rear side (vehicle compartment side). .
Note that the pedal rod 2a is effectively bent because the pedal bracket 4 is torsionally rotated together with the mounting bracket 5 to restrict the backward movement of the brake pedal 3.

The present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea. The present invention extends to these modifications and changes. Of course.
For example, in the pedal assembly A shown in FIG. 4, the bolt B1 and the support plate member 42 arranged on the right side are arranged on the left side, and the support plate member 41 arranged on the left side is arranged on the right side. May be.

It is principal part sectional drawing which shows the pedal retraction suppression apparatus which concerns on embodiment of this invention. It is a principal part expansion perspective view which shows the pedal assembly of the pedal retraction suppression apparatus which concerns on embodiment of this invention. It is a figure which shows the pedal retraction suppression apparatus which concerns on embodiment of this invention, and is a principal part expansion disassembled perspective view which shows a state when a pedal rod is broken. It is a principal part expanded bottom view which shows the pedal assembly of the pedal retraction suppression apparatus which concerns on embodiment of this invention. It is a figure which shows the pedal retraction suppression apparatus which concerns on this invention, and is a principal part expansion perspective view which shows the state of the brake assembly at the time of a front collision. It is a figure which shows the connection state of the conventional brake pedal and the pedal rod of a brake booster, (a) is a principal part expansion perspective view which shows the attachment state of normal times, (b) is the state of the pedal rod at the time of a front collision. It is a principal part expansion perspective view shown.

Explanation of symbols

1 Dash panel 2a Pedal rod 3 Brake pedal (pedal)
3b depression 4 pedal bracket 5 mounting bracket 6 steering hanger 41 support plate member (vehicle left side surface)
42 Support plate member (vehicle right side)
B1, B2 bolt (fixed point)
P Support pin (connection point)
S Pedal retraction control device

Claims (2)

A pedal bracket whose front is fixed to the dash panel at the front of the vehicle;
A pedal supported by the pedal bracket and rotatable in the longitudinal direction of the vehicle;
In a pedal retraction suppression device comprising a mounting bracket for fixing the pedal bracket and the steering hanger,
A fixing point between the mounting bracket and the steering hanger is arranged at a substantially center in the vehicle width direction of the mounting bracket,
The fixing point of the mounting bracket and the pedal bracket is arranged to be shifted from the center with respect to the vehicle width direction of the mounting bracket , and
A pedal retraction suppression device characterized in that rigidity on a fixed point side of the mounting bracket and the pedal bracket on the vehicle left side surface portion and vehicle right side surface portion of the pedal bracket is set lower than that on the other side . A pedal bracket whose front is fixed to the dash panel at the front of the vehicle;
A pedal supported by the pedal bracket and rotatable in the longitudinal direction of the vehicle;
In a pedal retraction suppression device comprising a mounting bracket for fixing the pedal bracket and the steering hanger,
A fixing point between the mounting bracket and the steering hanger is arranged at a substantially center in the vehicle width direction of the mounting bracket,
The fixing point of the mounting bracket and the pedal bracket is arranged to be shifted from the center with respect to the vehicle width direction of the mounting bracket , and
The pedal retreat suppression device , wherein the pedal is formed with a depression at an upper part of a connection point of a pedal rod connected to the pedal.

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