WO2016035375A1

WO2016035375A1 - Pedal retraction amount limiting device

Info

Publication number: WO2016035375A1
Application number: PCT/JP2015/061658
Authority: WO
Inventors: 言生鳥巣
Original assignee: 豊田鉄工株式会社
Priority date: 2014-09-02
Filing date: 2015-04-16
Publication date: 2016-03-10
Also published as: JP6114242B2; JP2016049927A

Abstract

Provided is a pedal retraction amount limiting device for limiting the amount of retraction of an operation pedal using the buckling of a pair of side plates which constitutes a pedal bracket, the device being capable of limiting the amount of retraction of the operation pedal even if the side plates on both sides in the vehicle width direction have different shapes. A brake pedal device (1) has a pedal bracket (10) and an operation pedal (15), and the amount of retraction of the tread section (17) of the operation pedal (15) is limited by allowing the pedal bracket (10) to buckle and deform in a bending manner. The pedal bracket (10) comprises: a substantially flat plate-shaped first side plate (20); a second side plate (25) having a bulge (25A); a rear plate (30); and a bracket (50). The bracket (50) is joined to the lower end of the rear plate (30) and has a side plate joint section (51), a buckling deformation assisting section (53), and a restriction section (54). When a load F acts on the upper end of the pedal bracket (10), the rear plate (30) and the buckling deformation assisting section (53) are deformed in a bending manner, causing the buckling deformation assisting section (53) to move toward the first side plate (20).

Description

Pedal retraction control device

The present invention relates to a pedal retraction amount suppressing device that suppresses the operation pedal from retreating to the driver's seat when the dash panel is displaced to the driver's seat when the vehicle collides forward.

Conventionally, for example, an invention described in Patent Document 1 is known as a pedal retraction amount suppression device that suppresses the operation pedal from moving in the backward direction with respect to the vehicle body and moving toward the occupant when a vehicle collides forward. The pedal retraction amount suppression device described in Patent Literature 1 includes a pedal bracket, an operation pedal, and a guide member. When the pedal bracket is retracted to the driver's seat side together with the dash panel, the vehicle body side The upper end of the operation pedal is displaced downward in accordance with a predetermined movement locus in association with the relative displacement of the member, and the pedal bracket is bent and deformed while buckling the pair of side plates, so that the stepped portion of the operation pedal is It is comprised so that it may suppress retreating to the side.

JP 2006-142940 A

Here, in the pedal retraction amount suppression device described in Patent Document 1, since the pair of left and right side plates constituting the pedal bracket are configured to have the same shape, the pedal bracket together with the dash panel has a driver seat. When retracted to the side, the buckling deformation amount of the left and right side plates buckles substantially equally on the left and right to cause bending deformation, thereby suppressing the backward movement amount of the pedal.

In this regard, for example, the position of the pedal bracket used for a brake pedal or the like may be greatly limited by various factors such as the arrangement of each component in the engine room located in front of the dash panel. Therefore, the shape of the pair of side plates constituting the pedal bracket may not be the same on both the left and right sides.

And when the shape of the left and right side plates constituting the pedal bracket is different between the left and right sides, applying the invention described in Patent Document 1, even if the pedal bracket is retracted to the driver's seat side together with the dash panel, the seat on the side plate There is a possibility that the position of bending and the start time of buckling will be different on the left and right. Since the amount of back movement of the operation pedal is strongly influenced by the buckling deformation of the left and right side plates, if the position and start timing of buckling on the side plates differ from side to side, the amount of back movement of the operation pedal should be sufficiently suppressed. There is a risk of inability to do so.

The present invention relates to a pedal retraction amount suppression device that suppresses the retraction amount of an operation pedal using buckling of a pair of side plates constituting a pedal bracket, even if the side plate shapes on both sides in the vehicle width direction are different. Provided is a pedal retraction amount suppressing device capable of suppressing a pedal retraction amount.

According to an aspect of the present invention, there is provided a pedal retraction amount suppression device that is rotatably disposed by a pedal bracket fixed to a dash panel at a front portion of a vehicle and a vehicle body side member positioned above and a support shaft of the pedal bracket. And an operation pedal having a step portion used for a stepping operation at a lower end, and when the pedal bracket is moved backward together with the dash panel toward the driver's seat, the relative displacement with respect to the vehicle body side member is reduced. A pedal retraction amount suppression device that suppresses the retraction amount of the operation pedal to the driver's seat side by bending and deforming the pedal bracket while buckling, wherein the pedal bracket includes the vehicle A first side plate located on one side in the vehicle width direction and fixed to the dash panel, and the dash on the other side in the vehicle width direction. A second side plate having a bulging portion that is fixed to the flannel and that projects in an arc shape toward the other side in the vehicle width direction, and a back plate that connects between the first side plate and the second side plate. And at the lower end of the back plate, folded on the side plate joining portion joined to the first side plate and the second side plate, on the side plate joining portion, and on one side in the vehicle width direction. A buckling deformation assisting portion that is bent and joined to the first side plate, and that moves in the vehicle width direction along with the deformation of the back plate to promote buckling of the first side plate; And a restricting portion that is formed adjacent to the bending deformation assisting portion and restricts the movement of the buckling deformation assisting portion toward the other side in the vehicle width direction.

The pedal retraction amount suppression device includes a pedal bracket and an operation pedal. When the pedal bracket is retracted to the driver's seat side together with the dash panel, the pedal retraction amount suppression device is associated with relative displacement with the vehicle body side member. The amount of retraction of the operation pedal to the driver's seat side is suppressed by bending and deforming the pedal bracket while buckling. The pedal bracket is fixed to a dash panel in the front part of the vehicle and a vehicle body side member located above, and is located on the first side plate located on one side in the vehicle width direction and on the other side in the vehicle width direction. And a second side plate having a bulging portion, a back plate, a side plate joining portion, a buckling deformation assisting portion, and a regulating portion. In the pedal retraction amount suppression device, when the back plate moves as the pedal bracket retreats to the driver's seat side together with the dash panel, the buckling deformation assisting portion approaches the back plate and the side plate joining portion. It can move in the vehicle width direction as it is bent and deformed. At this time, since the restricting portion restricts the movement of the buckling deformation assisting portion toward the other side in the vehicle width direction, the buckling deformation assisting portion is located on one side (first side plate side) in the vehicle width direction. The first side plate is buckled in the outward direction of the pedal bracket at the same time as the second side plate having the bulging portion. That is, according to the pedal retraction amount suppression device, even if the shapes of the first side plate and the second side plate are different, the side plate joint portion, the buckling deformation assisting portion, and the regulating portion cooperate. Thus, the position and timing of buckling deformation in the first side plate and the second side plate can be made substantially equal, and thus the retraction amount of the operation pedal can be sufficiently suppressed.

The pedal retraction amount suppression device according to another aspect of the present invention is the pedal retraction amount suppression device according to claim 1, wherein the first side plate is substantially flat and is erected with respect to the dash panel. And is fixed to the dash panel on one side of the pedal bracket in the vehicle width direction.

In the pedal retraction amount suppression device, the first side plate is formed in a substantially flat plate shape and is located on one side of the pedal bracket in the vehicle width direction, the second side plate has a bulging portion, and the vehicle width. Located on the other side of the direction. That is, according to the pedal retraction amount suppression device, even if the pedal bracket is configured to have a substantially flat first side plate and a second side plate having a bulging portion, By the cooperation of the deformation assisting portion and the restricting portion, the position and timing of buckling deformation in the first side plate and the second side plate can be made substantially equal, thereby sufficiently suppressing the retraction amount of the operation pedal. be able to.

A pedal retraction amount suppression device according to another aspect of the present invention is the pedal retraction amount suppression device according to claim 1, wherein the first side plate protrudes smaller than a bulging portion of the second side plate. It has a bulging portion, and is fixed to the dash panel on one side of the pedal bracket in the vehicle width direction.

In the pedal retraction amount suppressing device, the first side plate has a bulging portion that protrudes smaller toward the outside of the pedal bracket than the bulging portion of the second side plate. That is, according to the pedal retraction amount suppression device, even if the pedal bracket has a first side plate and a second side plate in which bulged portions of different sizes are formed, the side plate joint portion and the seat By cooperating the bending deformation assisting portion and the regulating portion, the position and timing of buckling deformation in the first side plate and the second side plate can be made substantially equal, and thus the amount of retraction of the operation pedal can be sufficiently suppressed. can do.

And the pedal retraction amount suppression device according to another aspect of the present invention is the pedal retraction amount suppression device according to any one of claims 1 to 3, wherein the restricting portion pushes the back plate from an upper end. It is arranged corresponding to a portion where an extended line extending toward the lower end and the dash panel intersect.

In the pedal retraction amount suppression device, the restricting portion is disposed corresponding to a portion where the extension line extending from the upper end toward the lower end of the back plate and the dash panel intersect with each other. When the joint portion is bent so as to approach, the buckling deformation assisting portion can be reliably restricted by the restricting portion from moving to the other side of the pedal bracket in the vehicle width direction. Can be moved to one side in the vehicle width direction. That is, according to the pedal retraction amount suppression device, by arranging the restricting portion as described above, the force related to the deformation of the back plate with respect to the side plate joint portion is transferred to the buckling deformation assisting portion in the predetermined direction. It can be used more efficiently.

A pedal retraction amount suppression device according to another aspect of the present invention is the pedal retraction amount suppression device according to any one of claims 1 to 4, wherein the rigidity is low at an upper boundary with the side plate joint portion. A folding assisting portion is formed, wherein the portion is arranged in a straight line traversing in the vehicle width direction, and a bending assisting portion for promoting bending deformation of the side plate joint portion with respect to the back plate is formed.

In the pedal retraction amount suppression device, the bending assisting portion is configured by arranging a portion having low rigidity in a straight line crossing in the vehicle width direction at the upper boundary with the side plate joint portion, The bending deformation of the side plate joint with respect to the back plate is promoted. According to the pedal retraction amount suppression device, the bending auxiliary portion performs bending deformation of the side plate joint portion with respect to the back plate at a desired position, so that the position of buckling deformation on the first side plate and the second side plate, The timings can be made substantially equal, so that the amount of reverse of the operation pedal can be sufficiently suppressed.

A pedal retraction amount suppression device according to another aspect of the present invention is the pedal retraction amount suppression device according to any one of claims 1 to 5, wherein the back plate includes the side plate joint portion, The back plate joint includes a bracket having the buckling deformation assisting portion and a back plate joint portion which is located on the upper side of the side plate joint portion and is joined to the lower end portion of the back plate together with the regulating portion. By joining to the lower end part of the said back board via a part, it has the said side board joint part, the said buckling deformation auxiliary | assistant part, and the said control part, It is characterized by the above-mentioned.

According to the pedal retraction amount suppressing device, the back plate is joined to the side plate by joining a bracket having the side plate joining portion, the buckling deformation assisting portion, the regulating portion, and the back plate joining portion. A buckling deformation assisting portion and the restricting portion. Therefore, according to the pedal retraction amount suppression device, buckling deformation of the first side plate and the second side plate can be achieved by performing a simple process of joining the bracket formed as a separate member to the lower end of the back plate. The position and time can be made substantially equal, so that the retraction amount of the operation pedal can be sufficiently suppressed.

The pedal retraction amount suppression device according to another aspect of the present invention is the pedal retraction amount suppression device according to claim 6, wherein the back plate joint portion of the bracket is retracted toward the driver's seat side of the dash panel. And a load direction conversion section that converts the direction of the load acting on the back plate joint section so as to go to one side of the vehicle width direction in which the buckling deformation assisting section is formed. .

According to the pedal retraction amount suppression device, the buckling deformation assisting portion forms the direction of the load acting on the back plate joint portion when the load direction conversion portion retreats to the driver seat side of the dash panel. When it is bent so that the back plate joint portion and the side plate joint portion of the bracket come close to each other so as to be converted to one side in the vehicle width direction, buckling deformation to one side in the vehicle width direction is performed. The movement of the auxiliary part can be promoted. That is, according to the pedal retraction amount suppression device, the force related to the deformation of the back plate joint portion with respect to the side plate joint portion can be used more efficiently for the movement of the buckling deformation assisting portion in the predetermined direction.

According to this invention, even if the shapes of the first side plate and the second side plate are different, the first side plate is obtained by the cooperation of the side plate joining portion, the buckling deformation assisting portion, and the regulating portion. The position and timing of the buckling deformation in the second side plate can be made substantially equal, so that a pedal retraction amount suppressing device capable of sufficiently suppressing the retraction amount of the operation pedal can be provided.

It is a side view showing the composition of the brake pedal device concerning this embodiment. It is a front view of the brake pedal device concerning this embodiment. It is a back perspective view of the brake pedal device concerning this embodiment. It is an external appearance perspective view of the bracket in this embodiment. It is a front view of the bracket in this embodiment. It is a side view of the bracket in this embodiment. It is a side view which shows the structure of the brake pedal apparatus of a reverse amount suppression state. It is a front view of the brake pedal device of the amount of retreat control. It is a front view which shows an example of the modification of a brake pedal apparatus. It is a front view which shows an example of the modification of a bracket.

Hereinafter, an embodiment in which a pedal retraction amount suppression device according to the present invention is applied to a brake pedal device 1 for a service brake will be described in detail with reference to the drawings. As shown in FIG. 1, the brake pedal device 1 according to the present embodiment has a dash panel 2 that divides an engine room in front of the vehicle and the interior of the passenger compartment (driver's seat), and an instrument panel reinforcement 7 that is a vehicle body side member. The pedal bracket 10, the operation pedal 15, and the bracket 50 are provided.

A brake booster 3 is disposed in the engine room located on the front side of the dash panel 2 and is integrally fixed to the dash panel 2. The brake booster 3 has an operating rod 4, a connecting pin 5, and a cylindrical portion 6, and a stepping operation of the operation pedal 15 is transmitted through the connecting pin 5 formed at the tip of the operating rod 4. When it is done, braking force is generated. The cylindrical portion 6 is inserted through the operating rod 4 and is formed in a bellows shape that protrudes into the vehicle compartment via the dash panel 2.

The instrument panel reinforcement 7 is a reinforcing member of the instrument panel, and compared to the dash panel, the possibility of displacement to the driver's seat side (that is, the vehicle rear side) when a large load (for example, a collision load L) is input from the front of the vehicle. And there are few things. In the brake pedal device 1 according to the present embodiment, the buckle deformation of the pedal bracket is performed based on the relative displacement between the dash panel 2 and the instrument panel reinforcement 7 when a large load (for example, a collision load L) is input from the front of the vehicle. Is generated.

As shown in FIGS. 1 to 3, the pedal bracket 10 is fixed to the dash panel 2 via bolts (not shown) or the like and is connected to the instrument panel reinforcement 7. The first side plate 20, the second side plate 25, and the back plate 30 are provided. The pedal bracket 10 is configured to connect the first side plate 20 and the second side plate 25 arranged so as to face each other by a back plate 30, and has a U-shaped cross section as a whole. It is made.

As shown in FIGS. 1 to 3, the first side plate 20 is a substantially flat plate member that constitutes one side of the pedal bracket 10 in the vehicle width direction, and is in a posture that is substantially perpendicular to the dash panel 2. It is fixed with bolts. The first side plate 20 extends at an angle toward the vehicle rear side away from the dash panel 2 as it goes upward at a position on one side of the cylindrical portion 6 of the brake booster 3.

The second side plate 25 is a member disposed on one side of the pedal bracket 10 in the vehicle width direction so as to be parallel to the first side plate 20 and is substantially perpendicular to the dash panel 2. The posture is fixed by bolts or the like. The second side plate 25 is inclined and extended toward the rear side of the vehicle, which is separated from the dash panel 2 as it goes upward at the position on the other side of the cylindrical portion 6 of the brake booster 3. A bulging portion 25A is formed at the lower portion of the second side plate 25, and bulges to the other side (the outside of the pedal bracket 10) in the vehicle width direction so as to avoid the cylindrical portion 6 of the brake booster 3.

As shown in FIG. 2, the bulging portions 25A of the first side plate 20 and the second side plate 25 are disposed so as to avoid the portions where the cylindrical portion 6 of the brake booster 3 is disposed. There is no interference. In addition, a bolt or the like is attached around the cylindrical portion 6, and the first side plate 20 and the second side plate 25 are respectively connected to the dash panel 2 at a position avoiding the cylindrical portion 6. It is fixed in a substantially vertical state.

The back plate 30 is disposed so as to connect between the first side plate 20 and the second side plate 25 at the upper part of the first side plate 20 and the second side plate 25 (a portion extending obliquely toward the vehicle rear side). (See FIGS. 2 and 3). The back plate 30 is disposed above the first side plate 20 and the second side plate 25 so as to extend along the edge on the dash panel 2 side.

The upper end of the pedal bracket 10 is connected to a support member 35 that is integrally fixed to the instrument panel reinforcement 7 via bolts 36. The upper end portion of the pedal bracket 10 is connected to the support member 35 so as to be slidable in the front-rear direction. When the dash panel 2 is displaced toward the driver's seat by a load input from the front of the vehicle, the pedal bracket 10 10 is allowed to be detached from the support member 35.

The operation pedal 15 is rotatably attached to the pedal bracket 10 by a support shaft 16 at an upper end portion thereof, and has a step portion 17 at a lower end portion thereof. The support shaft 16 is disposed across the first side plate 20 and the second side plate 25 at the upper end portion of the pedal bracket 10 so as to be substantially horizontal and substantially parallel to the vehicle width direction. The upper part of 15 is supported so that rotation is possible. The step portion 17 is a portion that is stepped on by the driver when the brake is operated.

As shown in FIG. 1, the operating rod 4 of the brake booster 3 is connected to the intermediate position of the operation pedal 15 via a connecting pin 5. Therefore, when the operation pedal 15 is depressed toward the front side of the vehicle, the operating rod 4 is pushed forward via the connecting pin 5, so that the brake booster 3 generates a braking force.

The bracket 50 is attached to the lower portion of the back plate 30 so as to connect between the first side plate 20 and the second side plate 25 (see FIGS. 1 to 3), the side plate joining portion 51, and the back plate. It has a joint portion 52, a buckling deformation assisting portion 53, a restricting portion 54, and a bending assisting portion 55. The bracket 50 fulfills the function of generating the buckling deformation of the first side plate 20 and the second side plate 25 equally to the left and right when a downward load F is applied to the upper end portion of the pedal bracket 10. . The configuration of the bracket 50 will be described in detail later with reference to the drawings.

Next, the operation of the brake pedal device 1 when a load from the front of the vehicle is input will be described. When a load (for example, a collision load L) from the front of the vehicle is input, the dash panel 2 is displaced toward the driver's seat by the brake booster 3 or the like. Since the instrument panel reinforcement 7 is less likely to be displaced toward the vehicle rear side when a large load (for example, a collision load L) is input from the front of the vehicle, the upper end portion of the pedal bracket 10 is The connection with the support member 35 fixed to the instrument panel reinforcement 7 is released.

When the connection with the support member 35 is released, the pedal bracket 10 moves further to the driver's seat side together with the dash panel 2. At this time, since the upper end portion of the pedal bracket 10 is detached from the support member 35 and is smoothly displaced obliquely downward, a downward load F is applied to the upper end portion of the pedal bracket 10.

When a downward load F is applied to the upper end portion of the pedal bracket 10, the first side plate 20 and the second side plate 25 are buckled and deformed toward the outside of the pedal bracket 10 by a bracket 50 described later. Along with this, the pedal bracket 10 is bent and deformed at a portion corresponding to the position where the bracket 50 is disposed so that the pedal bracket 10 as a whole bows. Thereby, since the upper end part is supported by the support shaft 16, the operation pedal 15 rotates using the intermediate part connected with the connection pin 5 of the operating rod 4 as a fulcrum. That is, when the step portion 17 of the operation pedal 15 moves relatively to the vehicle front side (dash panel 2 side), the backward movement of the step portion 17 of the operation pedal 15 to the driver seat side is suppressed.

Subsequently, the configuration of the bracket 50 attached to the pedal bracket 10 will be described in detail with reference to the drawings. As described above, the bracket 50 is attached to the lower portion of the back plate 30 so as to connect the first side plate 20 and the second side plate 25 (see FIGS. 1 to 3). The back plate joining portion 52, the buckling deformation assisting portion 53, the restricting portion 54, and the bending assisting portion 55 are provided (see FIGS. 4 to 6).

The side plate joint portion 51 is formed in a flat plate shape extending so as to connect between the first side plate 20 and the second side plate 25 and constitutes a basic portion of the bracket 50. As shown in FIG. 3 and the like, the side plate joining portion 51 is joined to the first side plate 20 and the second side plate 25 and is fixed to the dash panel 2 via bolts or the like. In addition, the curved part is formed in the lower end edge of the side-plate junction part 51, the cylindrical part 6 located under the bracket 50 is avoided, and the interference with the cylindrical part 6 is avoided.

The back plate joining portion 52 is formed in a flat plate shape above the side plate joining portion 51, and is joined to the lower end of the back plate 30 of the pedal bracket 10 by welding or other joining methods. That is, the back plate 30 is joined to the lower end portion thereof by joining the back plate joint portion 52 of the bracket 50, so that the side plate joint portion 51, the buckling deformation assisting portion 53, the regulating portion 54, and the bending assist. It will have the part 55. When a downward load F is applied to the upper end portion of the pedal bracket 10, the back plate joint portion 52 is deformed so as to be bent in the bending deformation direction B approaching the side plate joint portion 51.

The buckling deformation assisting portion 53 is a bent plate-like member on one side of the side plate joint portion 51 in the vehicle width direction, and is an upper part of the side plate joint portion 51, with respect to the first side plate 20. Are joined. The buckling deformation assisting portion 53 is disposed on one side of the side plate joint portion 51 in the vehicle width direction so as to extend over the side plate joint portion 51 and the back plate joint portion 52. When the back plate joining portion 52 is bent in the bending deformation direction B and approaches the side plate joining portion 51, the buckling deformation assisting portion 53 is moved to one side in the vehicle width direction by the action of the restricting portion 54 described later. It moves in the moving direction W of the assisting part. That is, in this case, the buckling deformation assisting portion 53 presses the first side plate 20 toward the outside of the pedal bracket 10, and therefore promotes the buckling of the first side plate 20.

The regulating portion 54 is formed so as to protrude toward the vehicle rear side at a position adjacent to the buckling deformation assisting portion and on the boundary line between the side plate joint portion 51 and the back plate joint portion 52. The regulation part 54 is arranged so that a part thereof is positioned with respect to the side plate joining part 51, the back plate joining part 52, and the buckling deformation assisting part 53. Therefore, even if the back plate joint portion 52 is bent in the bending deformation direction B by the load F, the buckling deformation assisting portion 53 is formed on the other side in the vehicle width direction by forming the restriction portion 54. Therefore, the movement to one side (the first side plate 20 side) in the vehicle width direction is permitted.

In the brake pedal device 1 according to the present embodiment, the restricting portion 54 is disposed corresponding to the intersection point P where the auxiliary line S, which is an extension line extending the back plate 30 from the upper end toward the lower end, and the dash panel 2 intersect. (See FIG. 1). Therefore, when the side plate joint portion 51 and the back plate joint portion 52 are bent so as to approach each other, the restriction portion 54 can be reliably restricted from moving to the other side of the pedal bracket 10 in the vehicle width direction. The movement to the one side (1st side board 20 side) of a vehicle width direction can be accelerated | stimulated. That is, according to the brake pedal device 1 according to the present embodiment, the back plate joint portion with respect to the side plate joint portion 51 is provided by disposing the restricting portion 54 at a position corresponding to the intersection P between the dash panel 2 and the auxiliary line S. The load F related to the deformation of 52 can be used more efficiently for the movement of the buckling deformation assisting portion 53 to the first side plate 20.

As described above, the restricting portion 54 is arranged so that a part of the restricting portion 54 is included for each of the side plate joining portion 51, the back plate joining portion 52, and the buckling deformation assisting portion 53. Accordingly, when the load F acts and the back plate joining portion 52 acts in the bending deformation direction B so as to approach the side plate joining portion 51, the restricting portion 54 buckles the force accompanying this bending deformation. This can be converted into a force that moves the deformation assisting portion 53 toward the first side plate 20. That is, in the brake pedal device 1 according to the present embodiment, the restricting portion 54 of the bracket 50 functions as a load direction converting portion in the present invention.

The bending assisting portion 55 has a plate thickness of the bracket 50 in a straight line crossing in the vehicle width direction of the bracket 50 at the boundary between the side plate joint portion 51 and the back plate joint portion 52 (that is, the upper boundary of the side plate joint portion 51). It is configured by arranging thin parts. Since the bending assisting portion 55 is constituted by a portion having low rigidity, the bending deformation of the back plate joining portion 52 with respect to the side plate joining portion 51 is promoted at a predetermined position (formation of the bending assisting portion 55). be able to.

Subsequently, the operation of the bracket 50 with respect to the brake pedal device 1 when the collision load L from the front of the vehicle is input will be described. When the collision load L is input from the front of the vehicle, as described above, the dash panel 2 is displaced toward the driver's seat and a downward load F is applied to the upper end of the pedal bracket 10 (see FIG. 7). ).

When a downward load F is applied to the upper end portion of the pedal bracket 10, the load F is deformed so as to bow as the whole pedal bracket 10. The process of this deformation will be specifically described. The load F applied to the upper end of the pedal bracket 10 acts on the back plate 30 and the back plate joint portion 52. Here, since the side plate joint portion 51 of the bracket 50 is fixed to the dash panel 2 together with the first side plate 20 and the second side plate 25, the back plate 30 and the back plate joint portion 52 are the side plate joint portion. 51 is bent so as to approach 51. When the back plate joining portion 52 moves in the bending deformation direction B, the buckling deformation assisting portion 53 moves to the first side plate 20 side (that is, the outside direction of the pedal bracket 10) by the action of the restricting portion 54, and sits. The buckling deformation of the first side plate 20 in the bending deformation direction E is promoted (see FIG. 8).

On the other hand, the bulging portion 25A is formed on the second side plate 25 as described above, and the strength of the top portion of the bulging portion 25A is configured to be the weakest. Therefore, when the load F applied to the upper end of the pedal bracket 10 acts on the back plate 30 and the back plate joint portion 52, the second side plate 25 causes the apex portion of the bulging portion 25A to buckle deformation direction E (that is, the brake). It buckles and deforms so as to protrude to the outside of the pedal device 1 (see FIG. 8).

Thus, when the first side plate 20 and the second side plate 25 are buckled in the buckling deformation direction E, the operation pedal 15 rotates with the intermediate portion connected to the connecting pin 5 of the operating rod 4 as a fulcrum. That is, the stepping portion 17 of the operation pedal 15 is moved from the position in the normal state indicated by the broken line in FIG. 7 to the position indicated by the solid line in FIG. 7 as the first side plate 20 and the second side plate 25 are buckled. , Move relatively to the vehicle front side (dash panel 2 side). As described above, according to the brake pedal device 1, by using the bracket 50 to generate buckling deformation in the first side plate 20 and the second side plate, the operation pedal 15 moves to the driver seat side. The amount can be suppressed.

In the brake pedal device 1 according to the present embodiment, a bracket 50 is attached to the lower end portion of the back plate 30, and buckling deformation in the second side plate 25 is fixed to the dash panel 2 together with the side plate joint portion 51. It is generated above the portion where the bulge is located (that is, the top portion of the bulging portion 25A). That is, in the brake pedal device 1, the buckling deformation in the first side plate 20 is substantially in the vertical direction of the pedal bracket 10 with respect to the buckling deformation in the second side plate 25 by the buckling deformation assisting portion 53 of the bracket 50. It occurs at the same position (see FIG. 8). Thereby, according to the brake pedal device 1, even if the shapes of the first side plate 20 and the second side plate 25 are different, the occurrence positions of buckling deformation in the first side plate 20 and the second side plate 25 are substantially equal. Therefore, the retraction amount of the operation pedal 15 can be sufficiently suppressed.

Further, in the brake pedal device 1, when the load F is applied to the upper end of the pedal bracket 10, the back plate joint portion 52 is interposed via the back plate 30 almost simultaneously with the buckling deformation in the second side plate 25. It bends and deforms in the bending deformation direction B so as to approach the side plate joint portion 51. At this time, the buckling deformation assisting portion 53 of the bracket 50 moves toward the assisting portion moving direction W as the back plate joining portion 52 is bent and deformed in the bending deformation direction B, and the first side plate 20 is moved. Pressing in the buckling deformation direction E causes the first side plate 20 to buckle. That is, according to the brake pedal device 1, even when the shapes of the first side plate 20 and the second side plate 25 are different, the occurrence timing of buckling deformation in the first side plate 20 and the second side plate 25 is made substantially equal. Therefore, the retraction amount of the operation pedal 15 can be sufficiently suppressed.

As described above, the brake pedal device 1 according to the present embodiment includes the pedal bracket 10 and the operation pedal 15, and the pedal bracket 10 is retracted together with the dash panel 2 to the driver's seat side. In addition, the amount of backward movement of the operation pedal 15 toward the driver's seat side is suppressed by bending and deforming the pedal bracket 10 while buckling with the relative displacement with the instrument panel reinforcement 7. Yes.

The pedal bracket 10 includes a substantially flat first side plate 20, a second side plate 25 having a bulging portion 25 </ b> A, and a back plate 30. A bracket 50 is joined to the lower end of the back plate 30. ing. The bracket 50 includes a side plate joint portion 51, a buckling deformation assisting portion 53, and a restricting portion 54. When the load F acts on the upper end of the pedal bracket 10, the back plate 30 is bent and deformed so as to approach the side plate joint portion 51, and in conjunction with this, the buckling deformation assisting portion 53 moves toward the first side plate 20 side. Moving. Thus, according to the brake pedal device 1, the first side plate 20 can be buckled and deformed at the same time as the second side plate, and the positions of the buckling deformation of the first side plate 20 and the second side plate 25 are also substantially the same. Can be equal.

That is, according to the brake pedal device 1 according to the present embodiment, the first side plate 20 and the second side plate 25 are shaped like the substantially flat first side plate 20 and the second side plate 25 having the bulging portion 25A. Are different, the side plate joint portion 51, the buckling deformation assisting portion 53, and the restricting portion 54 cooperate with each other so that the position of the buckling deformation in the first side plate 20 and the second side plate 25 The timings can be made substantially equal, so that the amount of backward movement of the operation pedal 15 can be sufficiently suppressed.

In the brake pedal device 1 according to the present embodiment, as shown in FIG. 1, the restricting portion 54 is an intersection where the auxiliary line S extending the back plate 30 from the upper end to the lower end and the dash panel 2 intersect. It is arranged at a position corresponding to P. When the back plate 30 and the side plate joint portion 51 are bent so as to approach each other due to the load F, the restriction portion 54 reliably restricts the buckling deformation assisting portion 53 from moving inward of the pedal bracket 10. The buckling deformation assisting portion 53 can be promoted to move toward the first side plate 20 side.

In the bracket 50, the bending auxiliary portion 55 is formed in a straight line that crosses in the vehicle width direction along the boundary between the side plate joint portion 51 and the back plate joint portion 52. It is composed of thin and low-rigidity parts. Therefore, according to the brake pedal device 1, the bending auxiliary portion 55 performs the bending deformation of the side plate joint portion 51 with respect to the back plate 30 and the back plate joint portion 52 at a desired position. The position and timing of the buckling deformation in the second side plate 25 can be made substantially equal, so that the retracting amount of the operation pedal 15 can be sufficiently suppressed.

Further, in the brake pedal device 1, the side plate is joined to the lower end of the back plate 30 by joining the back plate joining portion 52 of the bracket 50 to the lower end of the back plate 30 constituting the pedal bracket 10. A portion 51, a buckling deformation assisting portion 53, and a restricting portion 54 are formed. That is, according to the brake pedal device 1, the first side plate 20, the bracket 50 formed as a separate member is joined to the lower end portion of the back plate 30 of the conventional pedal bracket 10. The position and timing of the buckling deformation in the second side plate 25 can be made substantially equal, so that the retreating amount of the operation pedal 15 can be sufficiently suppressed.

Further, in the bracket 50, the restricting portion 54 determines the direction of the load acting on the back plate joint portion 52 with the load F as the dash panel 2 moves backward toward the driver's seat side. It converts so that it may go to the one side (namely, the 1st side board 20 side) of the said vehicle width direction in which the part 53 was formed, and the movement of the buckling deformation auxiliary part 53 to the 1st side board 20 side is accelerated | stimulated. Therefore, according to the brake pedal device 1, the force related to the bending deformation of the back plate joint portion 52 with respect to the side plate joint portion 51 caused by the load F acting on the upper end of the pedal bracket 10 is applied to the buckling deformation auxiliary portion 53. It can use more efficiently for the movement to the 1st side board 20 side.

The present invention has been described above based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. For example, in the embodiment described above, the pedal bracket 10 has a configuration including the first side plate 20 formed in a substantially flat plate shape and the second side plate 25 having the bulging portion 25A. If the shape of the second side plate 25 is different, the present invention can be applied.

For example, as shown in FIG. 9, the first side plate 20 may have a bulging portion 20 </ b> A that is smaller than the bulging portion 25 </ b> A of the second side plate 25. In this case, according to the brake pedal device 1, even when the first side plate 20 and the second side plate 25 have different bulge portions, by joining the bracket 50 to the lower end of the back plate 30, There exists an effect similar to the brake pedal apparatus 1 which concerns on embodiment mentioned above. That is, even in the case of the brake pedal device 1 having the first side plate 20 and the second side plate 25 having different bulging portions, the side plate joining portion 51, the buckling deformation assisting portion 53, and the regulating portion 54 By cooperating with each other, the position and timing of buckling deformation in the first side plate 20 and the second side plate 25 can be made substantially equal, so that the retreat amount of the operation pedal 15 can be sufficiently suppressed.

In the embodiment described above, as shown in FIGS. 4 to 6, the restricting portion 54 is a boundary portion between the side plate joint portion 51 and the back plate joint portion 52, and is a portion on the buckling deformation assisting portion 53 side. However, the present invention is not limited to this mode. For example, as shown in FIG. 10, the restricting portion 54 can be formed in a shaft shape that connects between the back plate joining portion 52 and the buckling deformation assisting portion 53. The shaft-shaped restricting portion 54 has higher rigidity, and when the back plate joining portion 52 is deformed so as to approach the side plate joining portion 51, the buckling deformation assisting portion 53 is moved to the first side plate 20 side. Extrude. That is, even if it is the shaft-shaped control part 54, it can function as a control part and load direction conversion part of this invention.

And in embodiment mentioned above, it was the aspect which joined the backplate junction part 52 of the bracket 50 with respect to the lower end part of the backplate 30, However, It is not limited to this aspect. That is, the same configuration as the side plate joint portion 51, the buckling deformation assisting portion 53, and the regulating portion 54 in the bracket 50 may be integrally formed at the lower end portion of the back plate 30. Note that the bending auxiliary portion 55 may also be formed integrally with the lower end portion of the back plate 30 in the same positional relationship as the bracket 50.

Further, in the above-described embodiment, the bending auxiliary portion 55 of the bracket 50 has a portion where the thickness of the bracket 50 is reduced along the boundary between the side plate joint portion 51 and the back plate joint portion 52 in the vehicle width direction. Although it has been arranged in a straight line across, it is not limited to this embodiment. The bending assisting portion 55 may have a configuration in which a portion having low rigidity is arranged in a straight line crossing in the vehicle width direction along the boundary between the side plate joining portion 51 and the back plate joining portion 52. Can be adopted. For example, the bending assisting portion 55 may be configured by arranging a plurality of through holes penetrating the bracket 50 along the boundary between the side plate joining portion 51 and the back plate joining portion 52.

Moreover, although the brake pedal device 1 in the above-described embodiment has a configuration in which the present invention is applied to a brake pedal for a service brake, it is not limited to this mode. For example, the present invention can also be applied to other vehicle pedals such as an accelerator pedal, a clutch pedal, and a parking brake pedal.

And in the brake pedal apparatus 1 which concerns on embodiment mentioned above, although the upper end of the pedal bracket 10 was connected with respect to the support member 35 of the instrument panel reinforcement 7, the buckle deformation of the pedal bracket 10 was generated, It is not limited to this aspect. For example, the structure which connects the upper end of the pedal bracket 10 with respect to a cowl panel etc. may be sufficient.

Further, the instrument panel reinforcement 7 which is a vehicle body side member and the upper end portion of the pedal bracket 10 are connected in such a manner that the pedal bracket 10 is positioned at a predetermined position and the rear side of the pedal bracket 10 with respect to the upper end of the pedal bracket 10. Various modes can be adopted as long as the connection is released and a relative movement with respect to the instrument panel reinforcement 7 is possible when a predetermined load is applied toward the front. For example, the instrument panel reinforcement 7 and the upper end of the pedal bracket 10 may be relatively movable from the beginning. In addition, bolts and other rupture members that break at a predetermined load, friction engagement members that are frictionally engaged by a bolt fastening load, etc., and friction engagement members that slip out of a slit by a predetermined load, or deform by a predetermined load A configuration using a deformable member or the like that allows relative displacement may be used.

DESCRIPTION OF SYMBOLS 1 Brake pedal apparatus 2 Dash panel 7 Instrument panel reinforcement 10 Pedal bracket 15 Operation pedal 16 Support shaft 17 Step part 20 1st side board 25 2nd side board 25A Bumping part 30 Back board 50 Bracket 51 Side board junction part 52 Back board junction part 53 Buckling deformation auxiliary part 54 Restricting part 55 Bending auxiliary part S Auxiliary line P Intersection

Claims

A pedal bracket fixed to a dash panel at the front of the vehicle and a vehicle body side member located above;
An operation pedal that is rotatably arranged by a support shaft of the pedal bracket and has a step portion used for a stepping operation at a lower end;
When the pedal bracket is retracted together with the dash panel to the driver's seat side, the pedal bracket is bent and deformed while buckling with the relative displacement with respect to the vehicle body side member. A pedal retraction amount suppressing device that suppresses a reverse amount toward the driver's seat in the section,
The pedal bracket is
A first side plate located on one side in the vehicle width direction of the vehicle and fixed to the dash panel;
A second side plate that is fixed to the dash panel on the other side in the vehicle width direction and has a bulging portion that protrudes in an arc shape toward the other side in the vehicle width direction;
A back plate connecting between the first side plate and the second side plate,
In the lower end portion of the back plate, a side plate joint portion joined to the first side plate and the second side plate;
By being bent at one side of the vehicle width direction at the upper part of the side plate joint portion and joined to the first side plate, and moving in the vehicle width direction along with the deformation of the back plate A buckling deformation assisting portion that promotes buckling of the first side plate;
A pedal retraction amount suppressing device, comprising: a restricting portion that is formed adjacent to the buckling deformation assisting portion and restricts the movement of the buckling deformation assisting portion toward the other side in the vehicle width direction.
The first side plate is
It is formed in a substantially flat plate standing with respect to the dash panel,
The pedal retraction amount suppression device according to claim 1, wherein the pedal bracket is fixed to the dash panel on one side of the pedal bracket in the vehicle width direction.
The first side plate is
Having a bulging portion that protrudes smaller than the bulging portion of the second side plate;
The pedal retraction amount suppression device according to claim 1, wherein the pedal bracket is fixed to the dash panel on one side of the pedal bracket in the vehicle width direction.
The regulation part is
The pedal according to any one of claims 1 to 3, wherein the pedal is arranged corresponding to a portion where an extension line extending from the upper end to the lower end of the back plate and the dash panel intersect. Retreat amount control device.
At the upper boundary with the side plate joint portion, a low-rigidity portion is arranged linearly across the vehicle width direction to form a bending auxiliary portion that promotes bending deformation of the side plate joint portion with respect to the back plate The pedal retraction amount suppression device according to any one of claims 1 to 4, wherein the pedal retraction amount suppression device is provided.
The back plate is
A bracket having the side plate joint portion, the buckling deformation assisting portion, and the regulating portion, and a back plate joint portion that is located on the upper portion of the side plate joint portion and is joined to the lower end portion of the back plate. The
The side plate joint portion, the buckling deformation assisting portion, and the restricting portion are provided by joining to the lower end portion of the back plate via the back plate joint portion. The pedal retraction amount suppression device according to any one of claims 1 to 5.
The back plate joint of the bracket is
A load that changes the direction of the load acting on the back plate joint portion as the dash panel moves backward toward the driver's seat side so as to go to one side in the vehicle width direction where the buckling deformation assisting portion is formed. The pedal retraction amount suppressing device according to claim 6, further comprising a direction changing unit.