CN112721882A - Brake pedal - Google Patents

Brake pedal Download PDF

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Publication number
CN112721882A
CN112721882A CN202110128755.XA CN202110128755A CN112721882A CN 112721882 A CN112721882 A CN 112721882A CN 202110128755 A CN202110128755 A CN 202110128755A CN 112721882 A CN112721882 A CN 112721882A
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China
Prior art keywords
pedal
connecting rod
brake pedal
arm
swing arm
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Granted
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CN202110128755.XA
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Chinese (zh)
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CN112721882B (en
Inventor
王俊
夏金龙
于江
万兴
霍晓锋
赖美军
王来平
陈哲
方磊
吴建兵
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Zhejiang Geely Holding Group Co Ltd
Geely Automobile Research Institute Ningbo Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Geely Automobile Research Institute Ningbo Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60TVEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00Brake-action initiating means
    • B60T7/02Brake-action initiating means for personal initiation
    • B60T7/04Brake-action initiating means for personal initiation foot actuated
    • B60T7/06Disposition of pedal

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Braking Elements And Transmission Devices (AREA)

Abstract

The invention provides a brake pedal, and belongs to the technical field of automobiles. The brake pedal solves the problem that the change rate of the pedal lever ratio of the existing brake pedal in the braking process is small. This brake pedal, including pedal support, pedal arm, connecting rod, swing arm and booster push rod, pedal arm passes through articulated shaft one and is connected with pedal support is articulated, and the lower extreme of swing arm passes through articulated shaft two and is connected with pedal support is articulated, and articulated connection is passed through articulated shaft three and the upper end of swing arm to the one end of booster push rod, and the arc-shaped groove has been seted up to the swing arm, and the one end of connecting rod has the slip setting and can promote swing arm wobbling driving piece at the arc-shaped inslot, and the other end of connecting rod is fixed on pedal arm. The brake pedal can improve the performance of a vehicle brake system, reduce the braking distance and optimize the feeling of the brake pedal.

Description

Brake pedal
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a brake pedal.
Background
The brake pedal is an important ring in a closed loop system of a driver and a whole vehicle man-machine, the driver senses the braking feeling of the vehicle through the brake pedal and controls the braking strength of the vehicle, a pedal arm of the traditional brake pedal is directly connected with a push rod of a booster, the brake pedal is stepped down by the driver in the motion process of the mechanism, the pedal arm rotates around a fixed point, the push rod of the booster is directly pushed, and the transmission of the pedal force is realized. Therefore, after the design and the design of the pedal structure, the lever ratio is a fixed value in the whole pedal stroke process, and due to factors such as the idle stroke of a brake system, the pipeline pressure of the initial brake system and the like, the pedal force is small in the initial stage of the pedal, but the stroke is large, so that the response of braking force is not timely, the braking distance of the vehicle is increased, the pedal force is large in the later stage, but the stroke is small, and further the pedal feeling state is poor when the whole vehicle is braked.
At present, the chinese patent network discloses an anti-intrusion variable lever ratio brake pedal [ grant No.: CN206954209U, including the footboard, footboard arm and the footboard installing support that is connected with the footboard, still include two power rods, the pendulum rod, the booster push rod, prevent invading the support, the upper end of footboard arm is connected with the lower extreme of preventing invading the support through first pivot, the upper end of preventing invading the support is fixed, upper portion one side of footboard arm is connected with the right-hand member of two power rods through first round pin axle, the left end of two power rods is connected with the pendulum rod through second round pin axle, the lower extreme of pendulum rod is fixed through the pivot with the footboard installing support, the top and the booster of pendulum rodThe push rod is connected through a third pin shaft, a supporting arm extending towards the anti-invasion support is arranged on the right side of the upper end of the swing rod, and the right end of the supporting arm is in contact with the anti-invasion support. The distance between the first rotating shaft and the pedal is Ra, the distance between the first rotating shaft and the second pin shaft is Rb, the distance between the second rotating shaft and the third pin shaft is Rc, the distance between the second rotating shaft and the second pin shaft is Rd, and the lever ratio of the brake pedal is Ra
Figure BDA0002924427120000021
In the working process of the brake pedal, the distance Ra between the first rotating shaft and the pedal, the distance Rc between the second rotating shaft and the third pin shaft and the distance Rd between the second rotating shaft and the second pin shaft are not changed, only the distance Rb between the first rotating shaft and the second pin shaft is changed, so the lever ratio of the brake pedal is an inverse proportional function, when the distance Rb between the first rotating shaft and the second pin shaft is increased, the lever ratio of the brake pedal is decreased, when the distance Rb between the first rotating shaft and the second pin shaft is reduced, the lever ratio of the brake pedal is increased, however, during the whole braking process, the distance Rb between the first rotating shaft and the second pin shaft changes very little, therefore, the change range of the lever ratio of the whole brake pedal is very limited, and compared with the traditional pedal structure, the brake response and pedal feeling state change in the whole vehicle brake process have no obvious difference, so that the pedal feeling state is improved far less.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a brake pedal, which aims to solve the technical problems that: how to solve the problem that the change range of the pedal lever ratio is smaller in the braking process.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a brake pedal, includes pedal support, pedal arm, connecting rod, swing arm and booster push rod, the pedal arm passes through articulated shaft one and is connected with pedal support is articulated, the lower extreme of swing arm passes through articulated shaft two and is connected with pedal support is articulated, the articulated connection of articulated shaft three and the upper end of swing arm is passed through to the one end of booster push rod, its characterized in that, the circular arc groove has been seted up to the swing arm, the one end of connecting rod has the slip setting at the circular arc inslot and can promote swing arm wobbling driving piece, the other end of connecting rod is fixed on the pedal arm.
In this structure, the radius of rotation of pedal arm is Ra, and the linear distance between articulated shaft one and the driving piece is Rb, and the linear distance between articulated shaft two and the articulated shaft three is Rc, and the linear distance between articulated shaft two and the driving piece is Rd, and brake pedal lever ratio is for
Figure BDA0002924427120000031
The pedal is stepped on by the foot of a driver, so that the pedal arm swings forwards, the other end of the connecting rod is connected with the pedal arm and is positioned on the pedal arm, the connecting rod moves forwards integrally along with the pedal arm, and meanwhile, one end of the connecting rod, which is connected with the swing arm, is lifted upwards, so that the driving piece slides upwards along the arc-shaped groove, the swing arm is further pushed to swing forwards, and the booster push rod is driven to move forwards. In the whole braking process, the rotation radius Ra of the pedal arm, the linear distance Rb between the first hinge shaft and the driving part and the linear distance Rc between the second hinge shaft and the third hinge shaft are not changed, the driving part slides upwards along the arc-shaped groove, and the position of the second hinge shaft is always kept unchanged, so that the linear distance Rd between the second hinge shaft and the driving part is gradually increased, and further the lever ratio of the brake pedal is gradually increased, the variation range of the linear distance Rd between the second hinge shaft and the driving part in the structure is far larger than the variation range of the distance Rb between the first rotating shaft and the second hinge shaft in the prior art, the lever ratio of the brake pedal in the structure is a direct proportional function related to the Rd, when the linear distance Rd between the second hinge shaft and the driving part is larger, the lever ratio of the brake pedal is larger, the variation range of the whole vehicle pedal is obviously improved, and the pedal sensing state change, the performance of the vehicle brake system is improved, the brake distance is reduced, and the brake pedal feeling is optimized.
In the above-described brake pedal, the arc groove is provided along the length direction of the swing arm, and the outer convex side of the arc groove faces the link.
Through the arrangement of the structure, in the process of forward swinging of the pedal arm, the driving piece is ensured to slide upwards along the arc-shaped hole or the arc-shaped groove, and then one end of the connecting rod connected with the swing arm is lifted upwards.
In the above brake pedal, the connecting rod is inclined downward, and the end of the connecting rod connected with the swing arm faces downward. Through the arrangement of the structure, at the initial stage of forward swing of the pedal arm, the connecting rod is arranged in a downward inclined mode, the pedal lever is small, the pedal stroke can be effectively small, and rapid braking is realized; at the middle section of forward swing of the pedal arm, the connecting rod is in a horizontal state at the moment, the pedal lever is enlarged, and the maximum pedal force can be applied at the moment to obtain greater braking efficiency; at the rear section of forward swing of the pedal arm, the connecting rod is arranged in an upward inclined mode, the pedal force required by braking is gradually increased, and the pedal feeling state is remarkably improved.
In the above brake pedal, the driving member is a pin shaft, and the pin shaft is inserted into the arc-shaped groove. Through the arrangement of the structure, in the process of forward swinging of the pedal arm, the pin shaft slides upwards along the arc-shaped groove and simultaneously pushes the swing arm to swing forwards.
In the brake pedal, the brake pedal further comprises a circular arc-shaped plastic part embedded in the circular arc-shaped groove, a circular arc-shaped slideway is formed in the plastic part, and the pin shaft penetrates through the circular arc-shaped slideway. Through the setting of this structure, the round pin axle slides along convex slide, avoids round pin axle and the pore wall direct contact in arc-shaped hole to lead to round pin axle and arc-shaped hole's pore wall to be very easily worn and torn, and after the inner wall wearing and tearing of convex slide, take out the working of plastics from arc-shaped hole, change new working of plastics can.
In the brake pedal, an oil storage tank is arranged on the inner wall of the circular arc-shaped slide way, which is attached to the pin shaft, and the oil storage tank is arranged along the arc direction of the circular arc-shaped slide way. Through the arrangement of the structure, after the brake pedal is assembled, lubricating oil is filled in the oil storage tank, and the pin shaft is lubricated in the arc-shaped slide way, so that the pin shaft can slide more smoothly, and the abrasion of the pin shaft and a plastic part is reduced.
In the above brake pedal, the brake pedal further includes a fourth hinge shaft, a fifth hinge shaft and a fixed bracket, one end of the connecting rod is connected with the pedal arm through the fourth hinge shaft, the upper end of the fixed bracket is fixed on the first hinge shaft or the pedal arm, and the middle of the connecting rod is connected with the lower end of the fixed bracket through the fifth hinge shaft. Through the arrangement of the structure, the pedal arm, the fixed support and the connecting rod are in a triangular structure, the triangle has stability, so that the connecting rod cannot rotate around the hinged shaft IV; in addition, the fixed support also plays the effect of supporting and strengthening structural strength to the connecting rod, avoids the connecting rod to take place the rupture.
In foretell brake pedal, the fixed bolster is including the support body that is the shape of falling U, the support body is fixed on articulated shaft one, two outer ends of support body all have the arm lock, and two arm locks are the V-arrangement setting, the outer end of arm lock all has the mounting panel, and two mounting panels are all connected on articulated shaft five. Through the arrangement of the structure, the structural strength of the connecting rod is further improved, the connecting rod is not easy to break, and the motion stability of the connecting rod is ensured.
In foretell brake pedal, the mounting hole that has the breach has all been seted up to the relative both sides of support body, the both ends of articulated shaft one all inlay to be established in corresponding mounting hole. Through the setting of this structure, the simple to operate of fixed bolster in articulated shaft one.
In the brake pedal, the connecting rod includes a rod portion, connecting blocks are arranged at two ends of the rod portion, two abdicating grooves are formed in the two connecting blocks, at least part of the swing arm is located in one of the abdicating grooves, the driving member is fixed at one end of the connecting rod and penetrates through the abdicating groove; the pedal arm is at least partially positioned in the other abdicating groove, and the four hinge shafts penetrate through the pedal arm and the abdicating groove. Through the setting of this structure, the connecting rod is stable with being connected of pedal arm, swing arm to the connecting rod has better structural strength, makes the atress that the connecting rod can be better.
Compared with the prior art, the brake pedal disclosed by the invention has the following advantages: in the whole braking process, the rotation radius Ra of the pedal arm, the linear distance Rb between the first hinge shaft and the driving part and the linear distance Rc between the second hinge shaft and the third hinge shaft are not changed, the driving part slides upwards along the arc-shaped groove, and the position of the second hinge shaft is always kept unchanged, so that the linear distance Rd between the second hinge shaft and the driving part is gradually increased, and further the lever ratio of the brake pedal is gradually increased, the variation range of the linear distance Rd between the second hinge shaft and the driving part in the structure is far larger than the variation range of the distance Rb between the first rotating shaft and the second hinge shaft in the prior art, the lever ratio of the brake pedal in the structure is a direct proportional function related to the Rd, when the linear distance Rd between the second hinge shaft and the driving part is larger, the lever ratio of the brake pedal is larger, the variation range of the whole vehicle pedal is obviously improved, and the pedal sensing state change, the performance of the vehicle brake system is improved, the brake distance is reduced, and the brake pedal feeling is optimized.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
FIG. 2 is a right side view of the present invention with the pedal bracket removed.
Fig. 3 is a schematic perspective view of the present invention with the pedal bracket removed.
FIG. 4 is a schematic view of the present invention with the pedal bracket removed.
Fig. 5 is a schematic perspective view of the fixing bracket of the present invention.
In the figure, 1, a pedal bracket; 2. a pedal arm; 3. a connecting rod; 30. a rod portion; 31. connecting blocks; 31a, a yielding groove; 4. swinging arms; 40. an arc-shaped groove; 5. a booster push rod; 6. a first hinge shaft; 7. a second hinge shaft; 8. fixing a bracket; 80. a frame body; 81. clamping arms; 82. mounting a plate; 83. mounting holes; 83a, a notch; 9. a pin shaft; 10. a third hinge shaft; 11. a plastic part; 11a, a circular arc-shaped slideway; 11b, an oil storage tank; 12. a fourth hinge shaft; 13. and a fifth hinge shaft.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 1, 2 and 3, the brake pedal comprises a pedal support 1, a pedal arm 2, a connecting rod 3, a swing arm 4 and a booster push rod 5, wherein the pedal arm 2 is hinged with the pedal support 1 through a first hinge shaft 6, the lower end of the swing arm 4 is hinged with the pedal support 1 through a second hinge shaft 7, one end of the booster push rod 5 is hinged with the upper end of the swing arm 4 through a third hinge shaft 10, the swing arm 4 is provided with an arc groove 40, the arc groove 40 is arranged along the length direction of the swing arm 4, the outer convex side of the arc groove 40 faces the connecting rod 3, the connecting rod 3 is arranged in a downward inclined manner, and the connecting end of the connecting rod 3, which is connected; one end of connecting rod 3 is connected with the driving piece, and this embodiment driving piece is round pin axle 9, and round pin axle 9 is worn to establish in arc-shaped groove 40, and this brake pedal still includes articulated shaft four 12, articulated shaft five 15 and fixed bolster 8, and the other end of connecting rod 3 passes through articulated shaft four 12 to be connected with footboard arm 2, and fixed bolster 8's upper end is fixed on articulated shaft one 6 or footboard arm 2, and the middle part of connecting rod 3 passes through articulated shaft five 15 to be connected with fixed bolster 8's lower extreme.
Pedal arm 2, fixed bolster 8 and connecting rod 3 are the triangle-shaped structure, triangle-shaped has stability, make connecting rod 3 can not take place to rotate round articulated shaft four 12, the driver steps on the footboard with the foot, make pedal arm 2 swing forward, fixed bolster 8 and connecting rod 3 are along with pedal arm 2 synchronous motion, connecting rod 3 wholly moves forward, round pin axle 9 slides upwards along circular arc groove 40 simultaneously, make the one end that connecting rod 3 is connected with swing arm 4 lift up upwards, and then promote swing arm 4 swing forward, drive booster push rod 5 and move forward. As shown in fig. 4, the turning radius of the pedal arm 2 is Ra, the linear distance between the hinge shaft one 6 and the hinge shaft 9 is Rb, the linear distance between the hinge shaft two 7 and the hinge shaft three 10 is Rc, the linear distance between the hinge shaft two 7 and the hinge shaft 9 is Rd, and the brake pedal lever ratio is Ra
Figure BDA0002924427120000071
Half a turn of the pedal arm 2 during the entire braking processThe diameter Ra, the linear distance Rb between the first hinge shaft 6 and the pin shaft 9 and the linear distance Rc between the second hinge shaft 7 and the third hinge shaft 10 are not changed, the pin shaft 9 slides upwards along the arc-shaped groove 40, the position of the second hinge shaft 7 is always kept unchanged, the linear distance Rd between the second hinge shaft 7 and the pin shaft 9 is gradually increased, and the lever ratio of the brake pedal is gradually increased, the change range of the linear distance Rd between the second hinge shaft 7 and the pin shaft 9 in the structure is far larger than the change range of the distance Rb between the first rotating shaft and the second pin shaft in the prior art, the lever ratio of the brake pedal in the structure is a proportional function related to the Rd, when the linear distance Rd between the second hinge shaft 7 and the pin shaft 9 is larger, the lever ratio of the brake pedal is larger, the change range of the lever ratio of the whole vehicle is obviously improved, and the pedal feeling state change in the braking process, the performance of the vehicle brake system is improved, the brake distance is reduced, and the brake pedal feeling is optimized.
In addition, at the initial stage of forward swing of the pedal arm 2, the connecting rod 3 is arranged in a downward inclined mode, the pedal lever is small, the pedal stroke can be effectively small, and rapid braking is achieved; in the middle section of forward swing of the pedal arm 2, the connecting rod 3 is in a horizontal state at the moment, the pedal lever is enlarged, and the maximum pedal force can be applied at the moment to obtain greater braking efficiency; at the rear section of the forward swing of the pedal arm 2, at which the connecting rod 3 is disposed in an upward inclined manner, the pedal force required for braking is gradually increased, so that the pedal feel state is remarkably improved.
As shown in fig. 3 and 5, the fixing bracket 8 includes an inverted U-shaped bracket body 80, the bracket body 80 is fixed on the first hinge shaft 6, two outer ends of the bracket body 80 are respectively provided with a clamping arm 81, the two clamping arms 81 are arranged in a V shape, the outer ends of the clamping arms 81 are respectively provided with a mounting plate 82, and the two mounting plates 82 are respectively connected to the fifth hinge shaft 15; the two opposite sides of the frame body 80 are provided with mounting holes 83 with notches 83a, and two ends of the first hinge shaft 6 are embedded in the corresponding mounting holes 83.
As shown in fig. 1, 2 and 3, the connecting rod 3 includes a rod portion 30, two ends of the rod portion 30 are provided with connecting blocks 31, two of the connecting blocks 31 are both provided with an avoiding groove 31a, the swing arm 4 is at least partially located in one of the avoiding grooves 31a, the pin 9 is fixed at one end of the connecting rod 3, and the pin 9 passes through the avoiding groove 31 a; the pedal arm 2 is at least partially located in another relief groove 31a, and the hinge shaft three 10 is disposed through the pedal arm 2 and the relief groove 31 a.
As shown in fig. 2 and 3, the brake pedal further comprises a circular arc-shaped plastic part 11 embedded in the circular arc-shaped groove 40, the plastic part 11 is provided with a circular arc-shaped slideway 11a, the pin shaft 9 penetrates through the circular arc-shaped slideway 11a, in the braking process, the pin shaft 9 slides along the circular arc-shaped slideway 11a, so that the pin shaft 9 and the hole wall of the circular arc-shaped groove 40 are prevented from being easily worn due to direct contact between the pin shaft 9 and the hole wall of the circular arc-shaped groove 40, and when the inner wall of the circular arc-shaped slideway 11a is worn, the plastic part 11 is taken out of the circular arc-shaped groove 40; an oil storage tank 11b is formed in the inner wall, attached to the pin shaft 9, of the arc-shaped slide way 11a, the oil storage tank 11b is arranged along the arc direction of the arc-shaped slide way 11a, lubricating oil is filled in the oil storage tank 11b after the brake pedal is assembled, and lubrication is provided for sliding of the pin shaft 9 in the arc-shaped slide way 11a, so that the pin shaft 9 can slide more smoothly, and meanwhile, abrasion of the pin shaft 9 and a plastic piece 11 is reduced.
Example 2
This embodiment is substantially the same as embodiment 1 described above, except that: the driving member in this embodiment includes a rotating shaft disposed on the connecting rod 3 and a roller sleeved on the rotating shaft, the roller is located in the arc-shaped groove 40, and the roller rolls along a groove wall of the arc-shaped groove 40.
Example 3
This embodiment is substantially the same as embodiment 1 described above, except that: in this embodiment, the fixing bracket 8 is eliminated, and one end of the connecting rod 3 is fixed on the pedal arm 2 by welding or other fixing connection.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (10)

1. The utility model provides a brake pedal, includes pedal support (1), pedal arm (2), connecting rod (3), swing arm (4) and booster push rod (5), pedal arm (2) are connected with pedal support (1) are articulated through articulated shaft (6), the lower extreme of swing arm (4) is connected with pedal support (1) are articulated through articulated shaft two (7), the one end of booster push rod (5) is passed through articulated shaft three (10) and is connected with the upper end of swing arm (4) is articulated, a serial communication port, circular arc groove (40) have been seted up in swing arm (4), the one end of connecting rod (3) has the setting of sliding in circular arc groove (40) and can promote swing arm (4) wobbling driving piece, the other end of connecting rod (3) is fixed on pedal arm (2).
2. A brake pedal according to claim 1, characterized in that the circular arc groove (40) is provided along the length of the swing arm (4) and the outer convex side of the circular arc groove (40) is directed towards the connecting rod (3).
3. A brake pedal according to claim 2, characterized in that the connecting rod (3) is arranged obliquely downwards, and the end of the connecting rod (3) connected with the swing arm (4) is directed downwards.
4. A brake pedal according to claim 1, wherein the driving member is a pin (9), the pin (9) being inserted in the circular groove (40).
5. The brake pedal according to claim 4, further comprising a circular arc-shaped plastic member (11) embedded in the circular arc-shaped groove (40), wherein the plastic member (11) is provided with a circular arc-shaped slideway (11a), and the pin shaft (9) is inserted into the circular arc-shaped slideway (11 a).
6. The brake pedal according to claim 5, wherein an oil storage groove (11b) is formed in the inner wall, which is attached to the pin shaft (9), of the arc-shaped slideway (11a), and the oil storage groove (11b) is arranged along the arc direction of the arc-shaped slideway (11 a).
7. A brake pedal according to any one of claims 1 to 6, further comprising a fourth hinge shaft (12), a fifth hinge shaft (15) and a fixing bracket (8), wherein one end of the connecting rod (3) is connected to the pedal arm (2) through the fourth hinge shaft (12), the upper end of the fixing bracket (8) is fixed to the first hinge shaft (6) or the pedal arm (2), and the middle portion of the connecting rod (3) is connected to the lower end of the fixing bracket (8) through the fifth hinge shaft (15).
8. A brake pedal according to claim 7, wherein the fixing bracket (8) comprises a bracket body (80) in an inverted U shape, the bracket body (80) is fixed on the first hinge shaft (6), the two outer ends of the bracket body (80) are provided with clamping arms (81), the two clamping arms (81) are arranged in a V shape, the outer ends of the clamping arms (81) are provided with mounting plates (82), and the two mounting plates (82) are connected on the fifth hinge shaft (15).
9. The brake pedal according to claim 8, wherein the frame body (80) has mounting holes (83) with notches (83a) at opposite sides thereof, and both ends of the first hinge shaft (6) are embedded in the corresponding mounting holes (83).
10. A brake pedal according to claim 7, wherein the connecting rod (3) comprises a rod portion (30), two ends of the rod portion (30) are provided with connecting blocks (31), each of the two connecting blocks (31) is provided with a relief groove (31a), the swing arm (4) is at least partially positioned in one of the relief grooves (31a), the driving member is fixed at one end of the connecting rod (3) and is arranged to penetrate through the relief groove (31 a); the pedal arm (2) is at least partially positioned in another abdicating groove (31a), and the articulated shaft four (12) penetrates through the pedal arm (2) and the abdicating groove (31 a).
CN202110128755.XA 2021-01-29 2021-01-29 Brake pedal Active CN112721882B (en)

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JP2000313319A (en) * 1999-04-30 2000-11-14 Yorozu Corp Brake pedal device for automobile
US20040237700A1 (en) * 2003-05-29 2004-12-02 Wurn Michael L. Accelerator pedal for motorized vehicle
KR20100037868A (en) * 2008-10-02 2010-04-12 에스엘 주식회사 Pedal system for vehicle having variable lever ratio
CN201511950U (en) * 2009-07-21 2010-06-23 上海通用汽车有限公司 Automobile brake pedal
DE102011081001A1 (en) * 2011-08-16 2013-02-21 Bayerische Motoren Werke Aktiengesellschaft Electromechanical brake booster
CN202225860U (en) * 2011-09-07 2012-05-23 中国第一汽车股份有限公司 Novel brake pedal structure
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