Pedal device

Abstract

A pedal device (1) includes a shaft (41), a pedal (40), a housing (5), a reaction force generating mechanism (30), and a link rod (60). The link rod (60) has an arm portion (61) and a push portion (62). The arm portion (61) is connected to a pedal back surface (405). The push portion (62) is connected to the arm portion (61). In addition, the push portion (62) contacts the reaction force generating mechanism (30) when the pedal (40) is stepped on by an operator, thereby transmitting force from the pedal (40) to the reaction force generating mechanism (30). Furthermore, the arm portion (61) is connected to the pedal back surface (405), so that the link rod (60) rotates together with the pedal (40) while maintaining an angle formed by the pedal back surface (405) and an axis of the link rod (60) when the pedal (40) is stepped on by the operator.

Description

[0001] Cross-referencing of related applications

[0002] This application is based on Japanese Patent Application No. 2021-082793, filed on May 14, 2021, the contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to pedal devices. Background Technology

[0004] Conventionally, as described in Patent Document 1, a pedal device comprising a brake pedal, a control lever, and a stroke simulator is known. In this pedal device, pins are inserted into the hole in the brake pedal and the hole connected to the output portion of the control lever, allowing the brake pedal and the control lever to be rotatably connected. Furthermore, the control lever is rotatably connected to a rod protruding from the cylinder of the stroke simulator. Thus, the control lever transmits pedal force from the brake pedal toward the stroke simulator, and transmits the reaction force generated by the stroke simulator against this pedal force toward the brake pedal.

[0005] Existing technical documents

[0006] Patent documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2018-161900 Summary of the Invention

[0008] According to the inventors' research, in the pedal device described in Patent Document 1, when the brake pedal rotates, the brake pedal slides against the pin. This causes a wobble between the brake pedal and the pin. Additionally, the operating lever slides against a rod protruding from the cylinder of the stroke simulator. This also causes a wobble between the operating lever and the rod. Consequently, due to these wobbles, the angle of the brake pedal changes.

[0009] The purpose of this disclosure is to provide a pedal device that suppresses wobbling generated in the pedal.

[0010] According to one aspect of this disclosure, a pedal device comprises: a shaft formed in the shape of a rod; a pedal that rotates with the shaft about its axis when pressed by an operator; a support body that supports the shaft so that it can rotate; a reaction force generating mechanism that elastically deforms upon receiving a force from the pedal when the operator presses the pedal, thereby generating a reaction force relative to the pressing force applied to the pedal by the operator; and a connecting rod having an arm and a pressing portion connected to the arm, the arm being connected to a side of the pedal opposite to the side pressed by the operator, i.e., the back surface of the pedal, the pressing portion contacting the reaction force generating mechanism when the operator presses the pedal, thereby transmitting the force from the pedal to the reaction force generating mechanism, and since the arm is connected to the back surface of the pedal, the connecting rod rotates with the pedal about its axis while maintaining an angle between the back surface of the pedal and the axis of the connecting rod when the operator presses the pedal.

[0011] Therefore, when the pedal rotates, the back of the pedal does not slip against the connecting rod, thus suppressing the wobble between the pedal and the connecting rod. This effectively suppresses the wobble generated on the pedal.

[0012] In addition, the parenthesized reference marks used to annotate each constituent element, etc., indicate an example of the correspondence between that constituent element, etc., and the specific constituent elements, etc., described in the embodiments described later. Attached Figure Description

[0013] Figure 1 This is a configuration diagram of the brake-by-wire system using the pedal device of the first embodiment.

[0014] Figure 2 This is a 3D view of the pedal mechanism.

[0015] Figure 3 This is a 3D view of the pedal mechanism.

[0016] Figure 4 This is a cross-sectional view of the pedal assembly.

[0017] Figure 5 This is a three-dimensional view of a part of the pedal mechanism.

[0018] Figure 6 yes Figure 4 Enlarged view of section VI.

[0019] Figure 7 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the second embodiment.

[0020] Figure 8 yes Figure 7 Sectional view of line VIII-VIII.

[0021] Figure 9 This is a cross-sectional view of the connecting rod of the pedal device in the third embodiment.

[0022] Figure 10 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the fourth embodiment.

[0023] Figure 11 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the fifth embodiment.

[0024] Figure 12 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the sixth embodiment.

[0025] Figure 13 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the seventh embodiment.

[0026] Figure 14 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the eighth embodiment.

[0027] Figure 15 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the ninth embodiment.

[0028] Figure 16 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the tenth embodiment.

[0029] Figure 17 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the eleventh embodiment.

[0030] Figure 18 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the twelfth embodiment.

[0031] Figure 19 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the thirteenth embodiment.

[0032] Figure 20 This is a cross-sectional view of the pedal and connecting rod of the pedal device according to the fourteenth embodiment. Detailed Implementation

[0033] Hereinafter, embodiments will be described with reference to the accompanying drawings. Furthermore, in the various embodiments described below, the same reference numerals are used to denote the same or equivalent parts, and their descriptions are omitted.

[0034] (First Implementation)

[0035] The pedal device 1 in this embodiment is, for example, a brake pedal used in a brake-by-wire system 150 for controlling the brakes of a vehicle. First, the brake-by-wire system 150 will be described.

[0036] The brake-by-wire system 150 is, for example, as Figure 1 shown, provided with wheel cylinders 131 to 134, an ECU 110, a brake circuit 120, and a pedal device 1.

[0037] The wheel cylinders 131 to 134 are respectively disposed on the respective wheels of the vehicle. In addition, brake pads (not shown) are attached to each of the wheel cylinders 131 to 134.

[0038] The ECU 110 has a first ECU 111 and a second ECU 112. The first ECU 111 has a microcomputer, a drive circuit and the like (not shown). In addition, the first ECU 111 controls a first brake circuit 121 of the brake circuit 120 described later based on a signal from the pedal device 1 described later. The second ECU 112 has a microcomputer, a drive circuit and the like (not shown). Further, the second ECU 112 controls a second brake circuit 122 of the brake circuit 120 described later based on a signal from the pedal device 1 described later.

[0039] The brake circuit 120 has the first brake circuit 121 and the second brake circuit 122. The first brake circuit 121 includes a reservoir 124, a motor 123, a gear mechanism 125, and a master cylinder 126. The reservoir 124 stores brake fluid. The motor 123 drives the gear mechanism 125. The gear mechanism 125 causes a master piston 127 included in the master cylinder 126 to reciprocate in the axial direction of the master cylinder 126. The second brake circuit 122 includes electromagnetic valves and the like (not shown). In addition, the second brake circuit 122 opens and closes the electromagnetic valves in accordance with a control signal from the second ECU 112, thereby controlling the hydraulic pressure of each of the wheel cylinders 131 to 134.

[0040] Here, in order to describe the pedal device 1 below, the front-rear direction of the vehicle is defined as a vehicle front-rear direction Da. The vertical direction of the vehicle is defined as a vehicle vertical direction Db. The left-right direction of the vehicle is defined as a vehicle left-right direction Dc. The front side in the vehicle front-rear direction Da is referred to as the vehicle front side. The rear side in the vehicle front-rear direction Da is referred to as the vehicle rear side. The upper side in the vehicle vertical direction Db is referred to as the vehicle upper side. The lower side in the vehicle vertical direction Db is referred to as the vehicle lower side. The left side in the vehicle left-right direction Dc is referred to as the vehicle left side. The right side in the vehicle left-right direction Dc is referred to as the vehicle right side.

[0041] The pedal device 1 is an organ-type pedal device 1. Therefore, the pedal device 1 causes a portion of the pedal 40 that is located more toward the vehicle front side than the rotation axis CL to rotate toward the floor 2 side or the dash panel side in the vehicle cabin in accordance with an increase in the driver's pedaling force applied to the pedal 40 described later. In addition, the dash panel is a partition that separates the outside of the vehicle cabin such as the engine compartment of the vehicle from the inside of the vehicle cabin, and is sometimes referred to as a bulkhead.

[0042] Specifically, as Figures 2-6 As shown, the pedal device 1 includes a housing 5, housing bolts 22, a reaction force generating mechanism 30, a pedal 40, a pad 402, a shaft 41, and a rotating plate 43. Additionally, the pedal device 1 includes a sensor unit 50, a connecting rod 60, a rod connecting screw 65, a first stop 70, a second stop 75, and a cover member 77. Furthermore, in... Figure 6 In the text, the covering component 77 is omitted.

[0043] The outer casing 5 has a first outer casing 10 and a second outer casing 20.

[0044] The first outer casing 10 is formed of resin into a box shape. In addition, the first outer casing 10 has an upper wall 11, a left side wall 12, a right side wall 13, a front wall 14, a casing space 15, a casing opening 16, and a bearing hole 17.

[0045] like Figures 2-4 As shown, the upper wall 11 is the wall on the vehicle-side of the first housing 10. Additionally, as... Figure 4 As shown, the upper wall 11 includes a housing aperture 100 and a housing end 101. A large portion of the reaction force generating mechanism 30 (described later) is inserted into the housing aperture 100. The housing end 101 forms the housing aperture 100. (As shown...) Figure 3 As shown, the left side wall 12 is the wall on the left side of the vehicle in the first housing 10.

[0046] like Figure 2 as well as Figure 5 As shown, the right side wall 13 is the wall on the left side of the vehicle in the first housing 10. In addition, the right side wall 13 includes a housing recess 130.

[0047] The housing recess 130 is recessed from the outer surface of the right side wall 13 towards the left of the vehicle. In addition, the housing recess 130 includes a housing recess bottom surface 305, a housing recess first side surface 301, a housing recess second side surface 302, a housing recess third side surface 303, and a housing recess space 306.

[0048] The bottom surface 305 of the recessed part of the outer casing faces the right side of the vehicle. In addition, the bottom surface 305 of the recessed part of the outer casing is formed in an arc shape centered on the rotation axis CL of the pedal 40, which will be described later.

[0049] The first side surface 301 of the housing recess is connected to the rear side of the vehicle in the bottom surface 305 of the housing recess. In addition, the first side surface 301 of the housing recess is formed into the side surface of an arcuate cylinder centered on the rotation axis CL of the pedal 40, which will be described later.

[0050] The second side surface 302 of the housing recess is connected to the front side of the vehicle in the bottom surface 305 of the housing recess. In addition, the second side surface 302 of the housing recess is formed into the side surface of an arcuate cylinder centered on the rotation axis CL of the pedal 40, which will be described later.

[0051] The third side 303 of the housing recess is connected to the vehicle-top side of the bottom surface 305 of the housing recess, the first side 301 of the housing recess, and the second side 302 of the housing recess.

[0052] The recessed space 306 is a space formed by the bottom surface 305 of the recessed space, the first side surface 301 of the recessed space, the second side surface 302 of the recessed space, and the third side surface 303 of the recessed space. In addition, the recessed space 306 is formed into an arc shape centered on the rotation axis CL of the pedal 40, as described later, by the shapes of the bottom surface 305 of the recessed space, the first side surface 301 of the recessed space, and the second side surface 302 of the recessed space.

[0053] like Figure 4 As shown, the front wall 14 is the wall on the front side of the vehicle in the first housing 10. The housing space 15 is a space divided by the upper wall 11, the left side wall 12, the right side wall 13, and the front wall 14. The housing opening 16 is an opening space divided by the ends of the upper wall 11, the left side wall 12, the right side wall 13, and the front wall 14 in the housing space 15. The bearing hole 17 is a cylindrical space extending in the left-right direction Dc of the vehicle.

[0054] The second outer shell 20 is formed in the shape of a plate and is connected to the ends of the upper wall 11, left side wall 12, right side wall 13, and front wall 14 of the first outer shell 10. Furthermore, bolts (not shown) are inserted into holes (not shown) at the ends of the upper wall 11, left side wall 12, right side wall 13, and front wall 14 of the first outer shell 10, and into the corresponding holes in the second outer shell 20. Thus, the second outer shell 20 is fixed to the first outer shell 10 and seals the outer shell opening 16. The second outer shell 20 is made of metal. Moreover, as described above, the first outer shell 10 is made of resin. Therefore, the Young's modulus of the second outer shell 20 is higher than that of the first outer shell 10. Therefore, the rigidity of the outer shell 5 is higher than when both the first outer shell 10 and the second outer shell 20 are made of resin. Furthermore, as... Figure 3 As shown, because bolts 22 for the outer casing are inserted into the holes of the second outer casing 20 and the corresponding holes of the floor 2, the second outer casing 20 is fixed to the floor 2. Thus, the pedal device 1 is fixed to the floor 2.

[0055] The reaction force generating mechanism 30 generates a reaction force relative to the pedal force applied to the pedal 40 by the driver. For example, the reaction force generating mechanism 30 is as follows: Figure 4 As shown, it includes a leaf spring 31, a lower retainer 35, a large-diameter helical spring 33, a small-diameter helical spring 34, a spring seat 36, and an upper retainer 37.

[0056] The leaf spring 31, when unloaded, bends into a curved surface convex toward the floor 2. One end 311 of the leaf spring 31 is connected to the rear vehicle side of the second housing 20. The lower retainer 35 is connected to the other end 312 of the leaf spring 31. The large-diameter coil spring 33 is connected to the lower retainer 35 on the side opposite to the leaf spring 31. The spring seat 36 has a small-diameter portion 361 and a large-diameter portion 362. The small-diameter portion 361 is formed as a bottomed cylindrical shape. Furthermore, the small-diameter portion 361 is disposed within the space inside the large-diameter coil spring 33. The large-diameter portion 362 is connected to the side of the small-diameter portion 361 opposite to the bottom. Additionally, the diameter of the large-diameter portion 362 is larger than the diameter of the small-diameter portion 361. Thus, the large-diameter portion 362 is connected to the large-diameter coil spring 33. Furthermore, the small-diameter helical spring 34 is housed in the small-diameter portion 361 of the spring seat and is connected to the bottom of the small-diameter portion 361 of the spring seat.

[0057] The upper retainer 37 has a small-diameter portion 371 and a large-diameter portion 372. The small-diameter portion 371 is cylindrical. It is disposed within the space inside the small-diameter coil spring 34. A pin is inserted into the holes of the leaf spring 31, the lower retainer 35, the spring seat 36, and the upper retainer 37, connecting them to each other. This pin slides against the inner surface of the small-diameter portion 371 and the inner surface of the spring seat 361. The large-diameter portion 372 is connected to the side of the small-diameter portion 371 opposite to the spring seat 36. The diameter of the large-diameter portion 372 is larger than the diameter of the small-diameter portion 371. Thus, the large-diameter portion 372 is connected to the small-diameter coil spring 34. Additionally, the large-diameter portion 372 of the retainer includes a mechanism-side contact surface 373 that contacts the connecting rod 60 described later. This mechanism-side contact surface 373 is a plane on the side of the large-diameter portion 372 opposite to the small-diameter portion 371 of the retainer.

[0058] The pedal 40 is formed in the shape of a plate. In addition, the pedal 40 has a pedal plate portion 401 and a rod fixing hole 403.

[0059] The pedal plate portion 401 is formed of metal. Furthermore, the pedal plate portion 401 includes a pedal surface 404 and a pedal back surface 405. The pedal surface 404 is the side facing the driver of the vehicle. The pedal back surface 405 is the side of the pedal plate portion 401 opposite to the pedal surface 404. Moreover, as... Figure 6 As shown, the pedal back surface 405 includes a ramp 407. The ramp 407 is inclined relative to the direction in which the pedal back surface 405 extends.

[0060] The rod fixing hole 403 is a hole that passes through the inclined surface 407 in the pedal surface 404 and the pedal back surface 405.

[0061] The pad 402 is made of rubber or the like. Furthermore, the pad 402 is connected to the vehicle-top side of the pedal surface 404. The pad 402 is stepped on by the vehicle's driver. Additionally, the pad 402 covers the pedal surface 404 side of the rod fixing hole 403. Therefore, the rod fixing hole 403 is not visible to the vehicle's driver.

[0062] The shaft 41 is formed of metal into a cylindrical shape. In addition, the shaft 41 is inserted into the bearing hole 17 of the first housing 10 and is rotatably supported by the first housing 10.

[0063] The rotating plate 43 is formed in an L-shape. Additionally, as... Figure 2 as well as Figure 4 As shown, the rotating plate 43 has a back plate portion 44 and a side plate portion 45. (As...) Figure 4 As shown, the back panel 44 is fixed to the back of the pedal 405 by screws inserted into holes in the back panel 44 and corresponding holes in the pedal plate 401. The side panel 45 is perpendicularly connected to the right side of the vehicle in the back panel 44. Furthermore, the side panel 45 is as follows... Figure 2 As shown, it includes a shaft hole 451 and a stop hole 452.

[0064] A shaft 41 is inserted into the shaft hole 451. Therefore, the pedal 40 is connected to the shaft 41 via the rotating plate 43. Thus, the pedal 40 rotates together with the shaft 41 and the rotating plate 43 about the shaft 41 as the axis of rotation CL.

[0065] A stop hole 452 is formed on the front side of the vehicle than the shaft hole 451. Furthermore, the stop hole 452 communicates with the recessed space 306 in the housing. Also, a portion of the first stop 70 (described later) is inserted into the stop hole 452.

[0066] like Figure 3 As shown, the sensor unit 50 is disposed on the side of the shaft 41 opposite to the side plate portion 45, i.e., the left side of the vehicle. The sensor unit 50 also includes a magnet, a yoke, and a Hall element (not shown). The sensor unit 50 detects the rotation angle of the shaft 41 by using the magnet, yoke, and Hall element to detect the rotation angle of the pedal 40. Furthermore, the sensor unit 50 outputs a signal corresponding to the detected rotation angle of the pedal 40 to the first ECU 111 and the second ECU 112. Alternatively, the sensor unit 50 may replace the Hall element with an MR element. MR is an abbreviation for Magneto Resistive. Alternatively, the sensor unit 50 may also be a sensing sensor that uses a coil to detect the rotation angle.

[0067] The connecting rod 60 is formed of metal into a rod shape. Additionally, the connecting rod 60, as... Figure 4 as well as Figure 6 As shown, it has an arm portion 61 and a pressing portion 62. Here, the arm portion 61 and the pressing portion 62 are formed independently.

[0068] The arm portion 61 includes an arm hole 611 and an arm recess 612. The arm hole 611 is a hole corresponding to the rod fixing hole 403. By inserting a rod connecting screw 65 into the arm hole 611 and the rod fixing hole 403, the arm portion 61 is fixed to the inclined surface 407 of the back of the pedal 405.

[0069] The arm recess 612 is axially recessed from the end face of the push-fit portion 62 (described later) in the arm portion 61 towards the connecting rod 60. Furthermore, the arm recess 612 includes a side surface 614 and a bottom surface 615. The side surface 614 is connected to the end face of the push-fit portion 62 (described later) in the arm portion 61. The bottom surface 615 is connected to the side surface 614. Moreover, a space is formed by the side surface 614 and the bottom surface 615.

[0070] like Figure 4 as well as Figure 6 As shown, the pressing portion 62 extends parallel to the arm portion 61. Furthermore, the pressing portion 62 includes a pressing contact portion 621 and a pressing protrusion 622. The pressing contact portion 621 contacts the mechanism-side contact surface 373 of the upper retainer 37 in the reaction force generating mechanism 30. The pressing protrusion 622 protrudes axially from the side of the pressing contact portion 621 opposite to the mechanism-side contact surface 373 toward the connecting rod 60. Additionally, the pressing protrusion 622 is inserted into the space formed by the side surface 614 and bottom surface 615 of the arm recess. Thus, the arm portion 61 is connected to the pressing portion 62.

[0071] like Figure 2 as well as Figure 5 As shown, the first stop member 70 is formed as a rod extending in the left-right direction Dc of the vehicle. A portion of the first stop member 70 is inserted into the stop member hole 452 of the rotating plate 43. Thus, the first stop member 70 rotates together with the rotating plate 43, the pedal 40, and the shaft 41 about the axis of the shaft 41 as the rotation axis CL. Furthermore, a portion of the first stop member 70 is inserted into the recessed space 306 of the outer casing. Additionally, the second stop member 75 protrudes from the upper wall 11 of the first outer casing 10 towards the pedal 40 from the vehicle-top side. The cover member 77, referred to as a dust cover, is formed into a cylindrical and corrugated shape from easily deformable rubber or the like. Moreover, the cover member 77 extends and retracts axially along the connecting rod 60 in conjunction with the swinging motion of the pedal 40. For example, the cover member 77 blocks the outer casing hole 100 with the connecting rod 60 inserted. This prevents foreign objects from entering the outer casing space 15 through the outer casing hole 100.

[0072] The brake-by-wire system 150 is constituted as described above. Next, the operation of the pedal device 1 will be explained.

[0073] When the driver of the vehicle is not pressing the pad 402 of the pedal 40, the large-diameter coil spring 33 and the small-diameter coil spring 34 of the reaction force generating mechanism 30 are compressed. At this time, the restoring force of the large-diameter coil spring 33 and the small-diameter coil spring 34 is transmitted to the pedal 40 via the connecting rod 60 connected to the upper retaining member 37 of the reaction force generating mechanism 30. Due to this restoring force, the pedal 40 is inclined to rotate away from the first housing 10. In addition, at this time, the first stop member 70 connected to the pedal 40 via the rotating plate 43 contacts the third side surface 303 of the housing recess of the right side wall 13 of the first housing 10. Thus, the position of the pedal 40 is fixed when the driver of the vehicle is not pressing the pad 402 of the pedal 40.

[0074] Furthermore, when the driver of the vehicle presses the pad 402 of the pedal 40, the pedal 40 rotates together with the shaft 41 and the rotating plate 43 about the shaft 41 as the axis of rotation CL. As a result, the pedal 40 rotates in a direction closer to the first housing 10.

[0075] At this time, the sensor unit 50 detects the rotation angle of the pedal 40 by detecting the rotation angle of the detection shaft 41. In addition, the sensor unit 50 outputs a signal corresponding to the detected rotation angle of the pedal 40 to the first ECU 111 and the second ECU 112.

[0076] At this time, the first ECU 111 supplies power, for example, to the motor 123, thereby causing the motor 123 to rotate. This drives the gear mechanism 125, thus moving the master piston 127. Consequently, the hydraulic pressure of the brake fluid supplied from the reservoir 124 to the master cylinder 126 increases. This increased hydraulic pressure is supplied to the second brake circuit 122.

[0077] Additionally, the second ECU 112 supplies power, for example, to a solenoid valve (not shown) in the second brake circuit 122. This opens the solenoid valve in the second brake circuit 122. Consequently, brake fluid supplied to the second brake circuit 122 is supplied to each wheel cylinder 131-134. As a result, the brake pads mounted on wheel cylinders 131-134 rub against their corresponding brake discs. This causes each wheel to brake, thus slowing the vehicle. Furthermore, at this time, the second ECU 112 can also perform ABS control, VSC control, collision avoidance control, and regenerative braking control based on signals from the sensor unit 50 and other electronic control devices (not shown). ABS stands for Anti-lock Braking System, and VSC stands for Vehicle Stability Control.

[0078] Additionally, at this time, the connecting rod 60 connected to the inclined surface 407 in the back of the pedal 405 is as follows: Figure 6 As shown, while maintaining the angle θL between the axis OL of the pedal back 405 and the connecting rod 60, the rod rotates together with the pedal 40 around the rotation axis CL. At this time, the connecting rod 60 passes through the housing hole 100. Furthermore, the pushing portion 62 of the connecting rod 60 contacts the upper retainer 37 of the reaction force generating mechanism 30, so that the force from the pedal 40 is transmitted to the upper retainer 37. As a result, the inner surface of the small-diameter portion 371 of the upper retainer 37 slides against the pin, and the small-diameter coil spring 34 is compressed by the upper retainer 37. Moreover, the force from the pedal 40 is transmitted to the spring seat 36 via the small-diameter coil spring 34. Additionally, the upper retainer 37 contacts the spring seat 36, so that the force from the pedal 40 is transmitted to the spring seat 36 via the upper retainer 37. Therefore, the inner surface of the small-diameter portion 361 of the spring seat 36 slides against the pin, and the large-diameter coil spring 33 is compressed by the spring seat 36. Furthermore, the force from the pedal 40 is transmitted to the leaf spring 31 via the large-diameter coil spring 33. Therefore, the leaf spring 31 flexes. Additionally, the inner surface of the small-diameter portion 371 of the upper retainer 37 slides against the pin, and the large-diameter portion 372 of the upper retainer 37 contacts the pin, causing the force from the pedal 40 to be transmitted to the leaf spring 31 via the pin. This causes the leaf spring 31 to flex. At this time, through the restoring forces of the leaf spring 31, the large-diameter coil spring 33, and the small-diameter coil spring 34, the reaction force generating mechanism 30 generates a reaction force relative to the pedal force applied to the pedal 40 by the driver. Therefore, even if the mechanical connection between the pedal 40 and the master cylinder 126 is eliminated, the pedal device 1 can obtain the same reaction force as when connected to the master cylinder 126, i.e., when a hydraulically based reaction force is obtained.

[0079] Furthermore, when the driver stops pressing the pad 402 of the pedal 40, the pedal 40 rotates away from the first housing 10 due to the reaction force generated by the reaction force generating mechanism 30. At this time, the first stop 70 rotates together with the pedal 40. As a result, after the first stop 70 moves within the recessed space 306 of the housing, it contacts the third side 303 of the recessed space on the right side wall 13 of the first housing 10. Therefore, the rotation of the pedal 40 stops. Thus, the position of the pedal 40 returns to the initial position when the driver of the vehicle is not pressing the pad 402 of the pedal 40.

[0080] Thus, pedal device 1 operates. Next, the situation of suppressing the wobbling of pedal 40 using pedal device 1 will be explained.

[0081] The pedal device 1 includes a shaft 41, a pedal 40, a housing 5, a reaction force generating mechanism 30, and a connecting rod 60. The shaft 41 is rod-shaped. The pedal 40 rotates with the shaft 41 around a rotation axis CL when pressed by the driver of the vehicle. The reaction force generating mechanism 30 elastically deforms upon receiving a force from the pedal 40 when pressed by the driver, thereby generating a reaction force relative to the driver's pressing force applied to the pedal 40. The connecting rod 60 has an arm 61 and a pressing part 62. The arm 61 is connected to the pedal back surface 405. The pedal back surface 405 is the side of the pedal 40 opposite to the side pressed by the driver. The pressing part 62 is connected to the arm 61. Furthermore, the pressing part 62 contacts the reaction force generating mechanism 30 when the driver presses the pedal 40, thereby transmitting the force from the pedal 40 to the reaction force generating mechanism 30. Moreover, as... Figure 6 As shown, when the driver of the vehicle depresses the pedal 40, the connecting rod 60 rotates together with the pedal 40 around the rotation axis CL while maintaining the angle θL between the pedal back surface 405 and the axis OL of the connecting rod 60. Furthermore, the rotation axis CL corresponds to the axis 41. The vehicle driver corresponds to the operator. The housing 5 corresponds to the support body.

[0082] Therefore, when the pedal 40 rotates, the pedal back surface 405 does not slip against the connecting rod 60, thus suppressing the generation of wobbling between the pedal 40 and the connecting rod 60. Furthermore, since the generation of wobbling is suppressed, the change in the angle of the pedal 40 caused by wobbling is also suppressed. Therefore, the accuracy of the rotation angle of the pedal 40 is improved, and thus the accuracy of the output value from the sensor unit 50 is improved. As a result, the first braking circuit 121 can be appropriately controlled by the first ECU 111, and the second braking circuit 122 can be appropriately controlled by the second ECU 112. Therefore, the vehicle braking can be appropriately performed, thus improving vehicle safety.

[0083] In addition, the pedal device 1 also has the following effects.

[0084] [1-1] The pushing part 62 contacts the reaction force generating mechanism 30 when the driver of the vehicle does not press the pedal 40.

[0085] Therefore, when the driver of the vehicle is not pressing the pedal 40, the pushing part 62 is supported by the reaction force generating mechanism 30. Consequently, when the driver of the vehicle is not pressing the pedal 40, the connecting rod 60 and the pedal 40 do not rotate, and therefore the shaft 41 connected to the pedal 40 via the rotating plate 43 does not rotate. Therefore, when the driver of the vehicle is not pressing the pedal 40, the shaft 41 does not slide against the first housing 10, thus suppressing any wobble between the shaft 41 and the first housing 10.

[0086] [1-2] The pedal back surface 405 includes a ramp 407. The ramp 407 is inclined relative to the direction in which the pedal back surface 405 extends. In addition, the arm 61 is connected to the ramp 407.

[0087] Therefore, compared to the case where the arm 61 is connected to the slope 407 in the back of the pedal 405, the angle θL between the back of the pedal 405 and the axis OL of the connecting rod 60 is changed. Consequently, the contact state between the pressing part 62 of the connecting rod 60 and the reaction force generating mechanism 30 is changed. Therefore, by adjusting the tilt angle of the slope 407, the contact state between the pressing part 62 and the reaction force generating mechanism 30 can be adjusted.

[0088] [1-3] The arm 61 is independent of the pressing part 62. Therefore, the material of the arm 61 can be changed to a different material than that of the pressing part 62.

[0089] [1-4] The side of the arm 61 is parallel to the side of the pressing part 62. Therefore, the orientation of the arm 61 is the same as that of the pressing part 62, and the angle θL between the back of the pedal 405 and the axis OL of the connecting rod 60 is constant. Thus, the contact state between the pressing part 62 and the reaction force generating mechanism 30 can be easily adjusted.

[0090] [1-5] The arm portion 61 has an arm recess 612. The arm recess 612 is recessed axially toward the connecting rod 60 from the end face of the push portion 62 side in the arm portion 61. In addition, the arm recess 612 includes an arm recess bottom surface 615 and an arm recess side surface 614 connected to the arm recess bottom surface 615. The push portion 62 has a push protrusion 622. The push protrusion 622 protrudes axially toward the connecting rod 60 from the end face of the push portion 62 on the arm portion 61 side. The push protrusion 622 is inserted into the space formed by the arm recess bottom surface 615 and the arm recess side surface 614, so that the push portion 62 is connected to the arm portion 61.

[0091] As a result, the pressing part 62 and the arm part 61 are fixed, making it difficult for the pressing part 62 and the arm part 61 to separate.

[0092] [1-6] The arm 61 is made of metal. Metal is a relatively difficult material to deform, so the arm 61 is difficult to deform. Therefore, it is easy to maintain the angle θL between the back of the pedal 405 and the axis OL of the connecting rod 60.

[0093] [1-7] The pressing part 62 is made of metal. Metal is a relatively difficult-to-deform material, so the pressing part 62 is difficult to deform. Therefore, it is easy to maintain the angle θL between the back of the pedal 405 and the axis OL of the connecting rod 60.

[0094] [1-8] The pedal device 1 also includes a first stop 70 connected to the pedal 40 via a rotating plate 43. When the pedal 40 is not pressed by the driver of the vehicle, the first stop 70 contacts the third side 303 of the housing recess of the housing 5, thereby stopping the rotation of the pedal 40.

[0095] Therefore, when the driver of the vehicle is not pressing the pedal 40, the connecting rod 60 and the pedal 40 do not rotate, and thus the shaft 41 connected to the pedal 40 via the rotating plate 43 does not rotate. Consequently, when the driver of the vehicle is not pressing the pedal 40, the shaft 41 does not slide against the first housing 10, thus suppressing the shaking between the shaft 41 and the first housing 10.

[0096] [1-9] The reaction force generating mechanism 30 has a mechanism-side contact surface 373. This mechanism-side contact surface 373 comes into contact with the pushing part 62 when the driver of the vehicle presses the pedal 40. In addition, the mechanism-side contact surface 373 is a plane.

[0097] Therefore, compared to the case where the contact portion with the pressing part 62 in the reaction force generating mechanism 30 forms an angle, the pressure caused by the force transmitted from the pressing part 62 to the reaction force generating mechanism 30 can be reduced. Consequently, the stress applied to the reaction force generating mechanism 30 is reduced, making it less prone to damage. Furthermore, since the mechanism-side contact surface 373 is planar, the manufacture of the reaction force generating mechanism 30 is facilitated.

[0098] [1-10] A rod fixing hole 403 is formed on the back surface 405 of the pedal. An arm hole 611 corresponding to the rod fixing hole 403 is formed on the arm portion 61. The arm portion 61 is connected to the back surface 405 of the pedal by inserting a rod connecting screw 65 into the rod fixing hole 403 and the arm hole 611. The rod connecting screw 65 corresponds to a rod-shaped component. Alternatively, the rod-shaped component can be a pin or snap-fit ​​assembly. The rod fixing hole 403 corresponds to the pedal hole.

[0099] Thus, the pedal back 405 and the arm 61 are fixed, making it easy to maintain the angle θL between the pedal back 405 and the axis OL of the connecting rod 60.

[0100] [1-11] The rod fixing hole 403 passes through the back of the pedal 405 and the surface of the pedal 404. The surface of the pedal 404 is the side of the pedal 40 opposite to the back of the pedal 405.

[0101] Therefore, the rod connecting screw 65 can be inserted into the rod fixing hole 403 and the arm hole 611 from the pedal surface 404 side, making it easy to fix the pedal back 405 to the arm 61. Thus, it is easy to maintain the angle θL between the pedal back 405 and the axis OL of the connecting rod 60.

[0102] [1-12] The pedal assembly 1 includes a pad 402. The pad 402 is connected to the pedal surface 404 and covers the rod fixing hole 403.

[0103] Therefore, the rod fixing hole 403 cannot be seen from the driver's side of the vehicle, thus improving the appearance design of the pedal device 1.

[0104] [1-13] The pedal device 1 is an organ-type pedal device mounted on a vehicle. Specifically, the pedal 40 rotates towards the floor 2 inside the vehicle as the driver of the vehicle applies more pressure to the pedal 40.

[0105] Here, when the pedal device 1 is an organ-type pedal device 1, it is necessary to house the housing 5 and the reaction force generating mechanism 30 housed in the housing 5 inside the vehicle compartment, thus requiring miniaturization of the pedal device 1. In this embodiment, the connecting rod 60 rotates together with the pedal 40 around the rotation axis CL while maintaining the angle θL between the pedal back surface 405 and the axis OL of the connecting rod 60, thus eliminating the need for multiple connecting rods as in a linkage mechanism. Therefore, compared to a linkage mechanism, the number of parts can be reduced, thus enabling the pedal device 1 to be miniaturized. In addition, compared to a linkage mechanism, the shape of the parts can be simplified, thus enabling the pedal device 1 to be miniaturized.

[0106] (Second Implementation)

[0107] In the second embodiment, the pushing part 62 of the connecting rod 60 is different from that in the first embodiment.

[0108] The pressing contact portion 621 of the pressing portion 62 includes a pressing side contact surface 623. The pressing side contact surface 623 is the surface that contacts the mechanism side contact surface 373 of the reaction force generating mechanism 30 when the driver of the vehicle presses the pedal 40. This pressing side contact surface 623 is formed as a convex surface protruding towards the reaction force generating mechanism 30. Specifically, the pressing side contact surface 623 is as follows... Figure 7 as well as Figure 8 As shown, it is formed into a spherical shape.

[0109] Thus, the second embodiment is constituted. In the second embodiment, the same effects as in the first embodiment are achieved. Furthermore, the second embodiment also achieves the effects described below.

[0110] [2-1] The pressing side contact surface 623 of the pressing part 62 is formed into a convex shape that protrudes towards the reaction force generating mechanism 30. This allows the contact between the pressing side contact surface 623 and the mechanism side contact surface 373 to be either a point contact or a line contact. If the contact between the pressing side contact surface 623 and the mechanism side contact surface 373 is a point contact, the surface pressure applied to the mechanism side contact surface 373 is the same regardless of the contact position. Therefore, the contact state between the pressing part 62 and the reaction force generating mechanism 30 can be easily adjusted. Furthermore, if the contact between the pressing side contact surface 623 and the mechanism side contact surface 373 is a line contact, the surface pressure applied to both the pressing side contact surface 623 and the mechanism side contact surface 373 can be smaller than in the case of point contact. Therefore, the stress applied to the connecting rod 60 and the reaction force generating mechanism 30 can be reduced, making it less likely for the connecting rod 60 and the reaction force generating mechanism 30 to break.

[0111] [2-2] The pressing side contact surface 623 of the pressing part 62 is formed into a spherical shape. As a result, the contact between the pressing side contact surface 623 and the mechanism side contact surface 373 becomes a point contact. Therefore, as described above, the contact state between the pressing part 62 and the reaction force generating mechanism 30 can be easily adjusted.

[0112] (Third Implementation)

[0113] In the third embodiment, such as Figure 7 as well as Figure 9 As shown, the pressing side contact surface 623 of the pressing part 62 is formed into an arc shape. In the third embodiment, it also achieves the same effect as in the first embodiment. In addition, in the third embodiment, it also achieves the effects described below.

[0114] [3] Because the pressing side contact surface 623 of the pressing part 62 is formed into an arc shape, the contact between the pressing side contact surface 623 and the mechanism side contact surface 373 becomes a line contact. Therefore, as described above, the connecting rod 60 and the reaction force generating mechanism 30 are difficult to break.

[0115] (Fourth Implementation)

[0116] In the fourth embodiment, the manner of the pedal 40 and the connection state between the pedal back 405 and the connecting rod 60 differ from those in the first embodiment. Otherwise, it is the same as the first embodiment.

[0117] like Figure 10As shown, the pedal 40 also has a first protrusion 441 and a second protrusion 442. The first protrusion 441 protrudes axially from the pedal back surface 405 toward the connecting rod 60. The second protrusion 442 protrudes axially from the pedal back surface 405 toward the connecting rod 60. Furthermore, a space is formed by the first protrusion 441 and the second protrusion 442. A portion of the arm 61 of the connecting rod 60 is inserted into this space, such that the arm 61 is connected to the pedal back surface 405 via the first protrusion 441 and the second protrusion 442. Additionally, in Figure 10 In this design, the pedal assembly 1 does not have a rod connecting screw 65, the arm portion 61 does not have an arm hole 611, and the pedal 40 does not have a rod fixing hole 403 that penetrates the pedal surface 404 and the pedal back surface 405. However, the arm hole 611 and the rod fixing hole 403 may communicate with the space formed by the first protrusion 441 and the second protrusion 442, and the rod connecting screw 65 may be inserted into the rod fixing hole 403, the space, and the arm hole 611. Furthermore, the pedal back surface 405 may not include a slope 407, but it may also include a slope 407.

[0118] Thus, this constitutes the fourth embodiment. In the fourth embodiment, the same effects as in the first embodiment are achieved. Furthermore, the fourth embodiment also achieves the effects described below.

[0119] [4] The arm 61 is connected to the back of the pedal 405 via the first protrusion 441 and the second protrusion 442 because a part of the arm 61 into which the connecting rod 60 is inserted is inserted.

[0120] Therefore, the angle θL between the pedal back surface 405 and the axis OL of the connecting rod 60 is changed according to the protruding directions of the first protrusion 441 and the second protrusion 442. Consequently, the contact state between the pressing part 62 of the connecting rod 60 and the reaction force generating mechanism 30 is changed. Thus, by adjusting the protruding directions of the first protrusion 441 and the second protrusion 442, the contact state between the pressing part 62 and the reaction force generating mechanism 30 can be adjusted. Furthermore, since the pedal back surface 405 and the connecting rod 60 are fixed, it is easy to maintain the angle θL between the pedal back surface 405 and the axis OL of the connecting rod 60.

[0121] (Fifth Implementation)

[0122] In the fifth embodiment, the arrangement of the pedal 40 and the connection state between the pedal back 405 and the connecting rod 60 differ from those in the first embodiment. Otherwise, it is the same as the first embodiment.

[0123] like Figure 11As shown, the pedal 40 also has a pedal protrusion 443. The pedal protrusion 443 protrudes axially from the pedal back surface 405 toward the connecting rod 60. Furthermore, the end face of the pedal protrusion 443 is connected to the end face of the arm 61 of the connecting rod 60 by welding or bonding. Thus, the arm 61 is connected to the pedal back surface 405 via the pedal protrusion 443. Additionally, in Figure 11 In this design, the pedal assembly 1 does not have a rod connecting screw 65, the arm portion 61 does not have an arm hole 611, and the pedal 40 does not have a rod fixing hole 403 that penetrates the pedal surface 404 and the pedal back surface 405. However, the arm hole 611 and the rod fixing hole 403 may be connected to a hole formed in the pedal protrusion 443, and the rod connecting screw 65 may be inserted into the rod fixing hole 403, the hole in the pedal protrusion 443, and the arm hole 611. Furthermore, the pedal back surface 405 may not include a slope 407, but it may also include a slope 407.

[0124] Thus, this constitutes the fifth embodiment. In the fifth embodiment, the same effects as in the first embodiment are achieved. Furthermore, the effects described below are also achieved in the fifth embodiment.

[0125] [5] The arm 61 is connected to the pedal protrusion 443 of the pedal 40, thereby connecting to the pedal back 405 via the pedal protrusion 443.

[0126] Depending on the direction in which the pedal protrusion 443 protrudes, the angle θL between the pedal back surface 405 and the axis OL of the connecting rod 60 is changed. Therefore, the contact state between the pressing part 62 of the connecting rod 60 and the reaction force generating mechanism 30 is changed. Thus, by adjusting the direction in which the pedal protrusion 443 protrudes, the contact state between the pressing part 62 and the reaction force generating mechanism 30 can be adjusted.

[0127] (Sixth Implementation Method)

[0128] In the sixth embodiment, the manner of the pedal 40 and the connection state between the pedal back 405 and the connecting rod 60 differ from those in the first embodiment. Otherwise, it is the same as the first embodiment.

[0129] like Figure 12 As shown, the pedal 40 also has a pedal recess 444. The pedal recess 444 is recessed axially from the pedal back surface 405 toward the connecting rod 60. Furthermore, the pedal recess 444 includes a pedal recess side surface 445 and a pedal recess bottom surface 446. The pedal recess side surface 445 is connected to the pedal back surface 405. The pedal recess bottom surface 446 is connected to the pedal recess side surface 445. Moreover, the pedal recess bottom surface 446 is connected to the end face of the arm 61 by welding and bonding. Alternatively, in this case, the pedal recess bottom surface 446 and the end face of the arm 61 may not be welded or bonded, and a portion of the arm 61 may be supported by the pedal recess side surface 445 and the pedal recess bottom surface 446. Additionally, in... Figure 12 In this design, the pedal assembly 1 does not have a rod connecting screw 65, the arm portion 61 does not have an arm hole 611, and the pedal 40 does not have a rod fixing hole 403 that penetrates the pedal surface 404 and the pedal back surface 405. However, the arm hole 611 and the rod fixing hole 403 may communicate with the space formed by the side surface 445 and the bottom surface 446 of the pedal recess, and the rod connecting screw 65 may be inserted into the rod fixing hole 403, the space, and the arm hole 611. Furthermore, the pedal back surface 405 may not include a slope 407, but it may also include a slope 407.

[0130] Thus, the sixth embodiment is constituted. In the sixth embodiment, the same effects as in the first embodiment are achieved. Furthermore, the effects described below are also achieved in the sixth embodiment.

[0131] [6] The arm 61 is inserted into the space formed by the side surface 445 of the pedal recess and the bottom surface 446 of the pedal recess and is connected to the back surface 405 of the pedal via the pedal recess 444.

[0132] Depending on the direction of the recess in the pedal recess 444, the angle θL between the pedal back surface 405 and the axis OL of the connecting rod 60 is changed. Therefore, the contact state between the pressing part 62 of the connecting rod 60 and the reaction force generating mechanism 30 is changed. Thus, by adjusting the direction of the recess in the pedal recess 444, the contact state between the pressing part 62 and the reaction force generating mechanism 30 can be adjusted.

[0133] (Seventh Implementation)

[0134] In the seventh embodiment, the arm 61 and the pushing part 62 of the connecting rod 60 are arranged differently from those in the first embodiment. Otherwise, they are the same as in the first embodiment.

[0135] like Figure 13 As shown, the pressing portion 62 does not have a pressing protrusion 622, but has a pressing recess 626. The pressing recess 626 is axially recessed from the end face of the arm portion 61 side of the pressing portion 62 towards the connecting rod 60. Furthermore, the pressing recess 626 includes a pressing recess side surface 627 and a pressing recess bottom surface 628. The pressing recess side surface 627 is connected to the end face of the arm portion 61 side of the pressing portion 62. The pressing recess bottom surface 628 is connected to the pressing recess side surface 627.

[0136] The arm portion 61 does not have an arm recess 612, but has an arm protrusion 616. The arm protrusion 616 protrudes axially from the end face of the pusher portion 62 side of the arm portion 61 toward the connecting rod 60. In addition, the arm protrusion 616 is inserted into the space formed by the side surface 627 and the bottom surface 628 of the pusher recess. Thus, the arm portion 61 is connected to the pusher portion 62.

[0137] Thus, the seventh embodiment is constituted. In the seventh embodiment, except for the above-described [1-5], it achieves the same effects as the first embodiment. In addition, the seventh embodiment also achieves the effects described below.

[0138] [7] The pressing part 62 has a pressing recess 626. The pressing recess 626 is recessed axially toward the connecting rod 60 from the end face of the arm part 61 in the pressing part 62. In addition, the pressing recess 626 includes a pressing recess bottom surface 628 and a pressing recess side surface 627 connected to the pressing recess bottom surface 628. The arm part 61 has an arm protrusion 616. The arm protrusion 616 protrudes axially toward the connecting rod 60 from the end face of the pressing part 62 in the arm part 61. The arm protrusion 616 is inserted into the space formed by the pressing recess bottom surface 628 and the pressing recess side surface 627, so that the pressing part 62 is connected to the arm part 61.

[0139] As a result, the pressing part 62 and the arm part 61 are fixed, making it difficult for the pressing part 62 and the arm part 61 to separate.

[0140] (Eighth Implementation Method)

[0141] In the eighth embodiment, the pad 402 is arranged differently. Otherwise, it is the same as in the first embodiment.

[0142] like Figure 14 As shown, the pad 402 includes a pad space 406 communicating with the rod fixing hole 403. Additionally, a rod connecting screw 65 is inserted into the pad space 406, the rod fixing hole 403, and the arm hole 611. Thus, the pedal back 405 is connected to the connecting rod 60.

[0143] Thus, the eighth embodiment is constituted. In the eighth embodiment, it achieves the same effect as the first embodiment.

[0144] (Ninth Implementation)

[0145] In the ninth embodiment, the pedal device 1 does not have a rod connecting screw 65, and the arm 61 of the connecting rod 60 does not have an arm hole 611. Furthermore, the connection between the pedal back surface 405 and the connecting rod 60 differs from that in the first embodiment. Otherwise, it is the same as the first embodiment.

[0146] like Figure 15As shown, the arm portion 61 has an insertion portion 631 and a support portion 641. The insertion portion 631 is inserted into the rod fixing hole 403. The support portion 641 is connected to the side of the insertion portion 631 opposite to the pushing portion 62, and is also inserted into the rod fixing hole 403. Furthermore, in a direction orthogonal to the axial direction of the connecting rod 60, the length of the support portion 641 is longer than the length of the insertion portion 631. Therefore, the support portion 641 is in contact with the surface in the pedal 40 where the rod fixing hole 403 is formed. Consequently, the arm portion 61 is connected to the back surface 405 of the pedal by riveting.

[0147] Thus, the ninth embodiment is constituted. In the ninth embodiment, except for the above-described [1-10], it achieves the same effects as the first embodiment. In addition, the ninth embodiment also achieves the effects described below.

[0148] [8] A rod fixing hole 403 is formed in the pedal 40. The rod fixing hole 403 passes through the pedal back surface 405 and the pedal surface 404. The arm portion 61 has an insertion portion 631 and a support portion 641. The insertion portion 631 is inserted into the rod fixing hole 403. The support portion 641 is connected to the side of the insertion portion 631 opposite to the pushing portion side. In addition, the support portion 641 contacts the pedal 40 by making the length of the support portion 641 longer than the length of the insertion portion 631 in a direction orthogonal to the axial direction of the connecting rod 60. Moreover, the arm portion 61 is connected to the pedal back surface 405 by inserting the insertion portion 631 into the rod fixing hole 403.

[0149] The pedal back 405 and the arm 61 are fixed by the support 641, thus making it easy to maintain the angle θL between the pedal back 405 and the axis OL of the connecting rod 60.

[0150] (Tenth Implementation)

[0151] In the tenth embodiment, the arrangement of the support portion 641 of the arm portion 61 differs from that in the ninth embodiment. Otherwise, it is the same as in the ninth embodiment.

[0152] like Figure 16 As shown, the support portion 641 is disposed in the pad space 406 of the pad 402. Therefore, the support portion 641 contacts the pedal surface 404 of the pedal 40.

[0153] Thus, the tenth embodiment is constituted. The tenth embodiment also achieves the same effect as the ninth embodiment.

[0154] (Eleventh Implementation Method)

[0155] In the eleventh embodiment, such as Figure 17As shown, the arm 61 of the connecting rod 60 and the pushing part 62 are integrally formed. Otherwise, it is the same as in the first embodiment. In the eleventh embodiment, it also achieves the same effects as in the first embodiment, except for the above [1-3]. Furthermore, the eleventh embodiment also achieves the effects described below.

[0156] [9] The arm 61 and the pressing part 62 are integrally formed, thereby reducing the number of parts compared to the case where the arm 61 and the pressing part 62 are formed independently.

[0157] (Twelfth Implementation)

[0158] In the twelfth embodiment, the mechanism-side contact surface 373 of the reaction force generating mechanism 30 is different from that in the second and third embodiments.

[0159] Mechanism side contact surface 373 Figure 18 As shown, the surface is formed into a concave shape that is recessed towards the inside of the reaction force generating mechanism 30. Specifically, the mechanism-side contact surface 373 is formed into a spherical shape and an arc shape.

[0160] Thus, the twelfth embodiment is constituted. In the twelfth embodiment, the same effects as in the second and third embodiments are achieved. Furthermore, the twelfth embodiment also achieves the effects described below.

[0161]

[10] The pressing side contact surface 623 of the pressing part 62 is formed in a convex shape, and the mechanism side contact surface 373 is formed in a concave shape that is recessed towards the inside of the reaction force generating mechanism 30. As a result, the contact area between the pressing side contact surface 623 and the mechanism side contact surface 373 can be increased. Therefore, the surface pressure applied to the pressing side contact surface 623 and the mechanism side contact surface 373 can be reduced. As a result, the stress applied to the connecting rod 60 and the reaction force generating mechanism 30 can be reduced, and therefore the connecting rod 60 and the reaction force generating mechanism 30 are less likely to break.

[0162] (Thirteenth Implementation Method)

[0163] In the thirteenth embodiment, the pedal device 1 does not have a rod connecting screw 65, and the arm 61 of the connecting rod 60 does not have an arm hole 611. Furthermore, the connection between the pedal back surface 405 and the connecting rod 60 differs from that in the first embodiment. Otherwise, it is the same as the first embodiment.

[0164] A portion of the arm 61 is pressed into the rod fixing hole 403. Thus, a portion of the arm 61 is as follows: Figure 19 It is inserted into the rod fixing hole 403 as shown. Therefore, the arm 61 is connected to the pedal 40.

[0165] Thus, the thirteenth embodiment is constituted. In the thirteenth embodiment, in addition to the above-described [1-10], it achieves the same effects as the first embodiment. Furthermore, the thirteenth embodiment also achieves the effects described below.

[0166]

[11] A rod fixing hole 403 is formed in the pedal 40. The rod fixing hole 403 passes through the pedal back surface 405 and the pedal surface 404. The arm 61 is connected to the pedal back surface 405 by inserting a portion of the arm 61 into the rod fixing hole 403. In addition, the rod fixing hole 403 passes through the pedal back surface 405 and the pedal surface 404, but is not limited to passing through the pedal back surface 405 and the pedal surface 404. The rod fixing hole 403 may also be a hole recessed from the pedal back surface 405.

[0167] Thus, the pedal back 405 and the arm 61 are fixed, making it easy to maintain the angle θL between the pedal back 405 and the axis OL of the connecting rod 60.

[0168] (Fourteenth Implementation)

[0169] In the fourteenth embodiment, such as Figure 20 As shown, the arm 61 and the pressing part 62 of the connecting rod 60 are made of resin such as PTFE instead of metal. Alternatively, the arm 61 and the pressing part 62 of the connecting rod 60 can also be made of a composite material formed from metal and resin. PTFE is an abbreviation for Polytetrafluoroethylene.

[0170] Thus, the fourteenth embodiment is constituted. In the fourteenth embodiment, the same effects as in the first embodiment are achieved. Furthermore, the fourteenth embodiment also achieves the effects described below.

[0171] [12-1] The arm 61 contains resin. The resin has a relatively low specific gravity, thus making the connecting rod 60 lightweight. Therefore, the pedal device 1 can be made lightweight.

[0172] [12-2] The pressing part 62 is made of resin. The resin has a relatively low specific gravity, thus making the connecting rod 60 lightweight. This, in turn, makes the pedal device 1 lightweight. Furthermore, the pressing part 62 is made of PTFE. Therefore, the coefficient of friction between the pressing part 62 and the mechanism-side contact surface 373 of the reaction force generating mechanism 30 is lower than if the pressing part 62 were made of metal. This improves the sliding properties of the pressing part 62 and the mechanism-side contact surface 373.

[0173] (Other implementation methods)

[0174] This disclosure is not limited to the above-described embodiments, and appropriate modifications can be made to the above-described embodiments. In addition, in each of the above embodiments, the elements constituting the embodiments are not necessarily essential, except where they are specifically expressed as necessary or are obviously necessary in principle.

[0175] In the above embodiment, the pedal device 1 serves as a brake pedal for controlling the brakes of the vehicle in the brake-by-wire braking system 150. However, the pedal device 1 is not limited to being used as a brake pedal. For example, the pedal device 1 can also be used as an accelerator pedal to accelerate the vehicle.

[0176] In the above embodiment, the pedal device 1 is an organ-type pedal device 1. In contrast, the pedal device 1 is not limited to an organ-type pedal device 1. For example, the pedal device 1 can also be a suspended pedal device 1. The suspended pedal device 1 rotates the portion of the pedal 40 relative to the rotation axis CL that is closer to the rear of the vehicle towards the floor 2 side or the front panel side of the passenger compartment, according to the increase in the pedal force applied to the pedal 40 by the driver.

[0177] In the above embodiment, a leaf spring 31, a large-diameter helical spring 33, and a small-diameter helical spring 34 are used as elastic components in the reaction force generating mechanism 30. Conversely, the number of elastic components in the reaction force generating mechanism 30 is not limited to three. The reaction force generating mechanism 30 can have one or more elastic components.

[0178] In the above embodiment, in the online braking system 150, hydraulic pressure is generated in the brake fluid flowing through the brake circuit 120 by the master cylinder 126. However, it is not limited to generating hydraulic pressure in the brake fluid flowing through the brake circuit 120 by the master cylinder 126. For example, a hydraulic pump can also be used to generate hydraulic pressure in the brake fluid flowing through the brake circuit 120.

[0179] In the above embodiment, the arm 61 of the connecting rod 60 is connected to the back of the pedal 405. Alternatively, the arm 61 may be connected to the back of the pedal 405 via an intermediate component such as a washer.

[0180] In the second and third embodiments described above, the pressing side contact surface 623 of the pressing part 62 is formed into a spherical shape or an arc shape, thereby forming a convex shape. In contrast, the pressing side contact surface 623 is not limited to being formed into a spherical shape or an arc shape, and can also be formed into a convex shape by being formed into an elliptical arc shape or the like.

[0181] In the twelfth embodiment described above, the mechanism-side contact surface 373 of the reaction force generating mechanism 30 is formed in a spherical shape and an arc shape, thereby forming a concave shape. In contrast, the mechanism-side contact surface 373 is not limited to being formed in a spherical shape and an arc shape, and may also be formed in a concave shape by being formed in an elliptical arc shape or the like.

[0182] In the above embodiment, the first outer shell 10 of the outer shell 5 is formed in a box shape. In contrast, the first outer shell 10 is not limited to being formed in a box shape; for example, it may also be plate-shaped.

[0183] The above implementation methods can also be combined appropriately.

Claims

1. A pedal device, characterized in that, have: Formed as a rod-shaped shaft; The pedal rotates with the shaft about its axis when pressed by the operator. A support body that supports the shaft so that it can rotate; The reaction force generating mechanism elastically deforms when the operator steps on the pedal, receiving a force from the pedal, thereby generating a reaction force relative to the stepping force applied to the pedal by the operator. as well as A connecting rod has an arm and a pushing part connected to the arm, the arm being connected to the back of the pedal, which is the side opposite to the side stepped on by the operator. When the operator steps on the pedal, the pushing part comes into contact with the reaction force generating mechanism, thereby transmitting the force from the pedal to the reaction force generating mechanism. Because the arm is connected to the back of the pedal, when the operator steps on the pedal, the connecting rod maintains the angle between the back of the pedal and the axis of the connecting rod while rotating together with the pedal about the axis of the shaft. The pushing part has a pushing side contact surface that contacts the reaction force generating mechanism when the operator steps on the pedal. The pressing side contact surface is formed into a convex shape that protrudes towards the reaction force generating mechanism.

2. The pedal device according to claim 1, characterized in that, The pushing part contacts the reaction force generating mechanism when the pedal is not stepped on by the operator.

3. The pedal device according to claim 1, characterized in that, The back of the pedal includes a slope that is inclined relative to the direction in which the back of the pedal extends. The arm is connected to the inclined plane.

4. The pedal device according to claim 1, characterized in that, The pressing side contact surface is formed into a spherical shape.

5. The pedal device according to claim 1, characterized in that, The contact surface on the pressing side is formed into an arc shape.

6. The pedal device according to claim 1, characterized in that, The reaction force generating mechanism has a mechanism-side contact surface that contacts the pushing part when the operator steps on the pedal. The contact surface of the mechanism side is a concave shape that is recessed into the inside of the reaction force generating mechanism.

7. The pedal device according to claim 1, characterized in that, The reaction force generating mechanism has a mechanism-side contact surface that contacts the pushing part when the operator steps on the pedal. The contact surface of the mechanism becomes a plane.

8. The pedal device according to any one of claims 1 to 7, characterized in that, The pedal also has a first protrusion and a second protrusion protruding from the back of the pedal. A portion of the arm is inserted into the space formed by the first protrusion and the second protrusion, thereby connecting the arm to the back of the pedal via the first protrusion and the second protrusion.

9. The pedal device according to any one of claims 1 to 7, characterized in that, The pedal also has a pedal protrusion that protrudes from the back of the pedal. The arm is connected to the pedal protrusion, thereby connecting to the back of the pedal via the pedal protrusion.

10. The pedal device according to any one of claims 1 to 7, characterized in that, The pedal also has a pedal recess that is recessed from the back of the pedal. The pedal recess includes a bottom surface and a side surface. A portion of the arm is inserted into the space formed by the bottom surface of the pedal recess and the side surface of the pedal recess, thereby connecting the arm to the back of the pedal via the pedal recess.

11. The pedal device according to any one of claims 1 to 7, characterized in that, The arm portion is independent of the pushing portion.

12. The pedal device according to claim 11, characterized in that, The side of the arm is parallel to the side of the pressing part.

13. The pedal device according to claim 11, characterized in that, The arm portion has an arm recess that is axially recessed from the end face of the push portion side of the arm portion toward the connecting rod. The arm recess includes a bottom surface and a side surface connected to the bottom surface. The pressing part has a pressing protrusion that protrudes axially from the end face of the arm portion of the pressing part toward the connecting rod. The pushing protrusion is inserted into the space formed by the bottom surface of the recess and the side surface of the recess, thereby connecting the pushing part to the arm.

14. The pedal device according to claim 11, characterized in that, The pressing part has a pressing recess that is axially recessed from the end face of the arm portion in the pressing part toward the connecting rod. The pressing recess includes a bottom surface and a side surface connected to the bottom surface. The arm has an arm protrusion that projects axially from the end face of the push-part side of the arm toward the connecting rod. The protruding part of the arm is inserted into the space formed by the bottom surface of the recess and the side surface of the recess, thereby connecting the arm part with the pushing part.

15. The pedal device according to any one of claims 1 to 7, characterized in that, The arm and the pushing part are integrated.

16. The pedal device according to any one of claims 1 to 7, characterized in that, The arm contains metal.

17. The pedal device according to any one of claims 1 to 7, characterized in that, The arm portion contains resin.

18. The pedal device according to any one of claims 1 to 7, characterized in that, The pressing part contains metal.

19. The pedal device according to any one of claims 1 to 7, characterized in that, The pressing part contains resin.

20. The pedal device according to any one of claims 1 to 7, characterized in that, It also includes a stop component connected to the pedal. The stop member contacts the support body when the pedal is not stepped on by the operator, thereby stopping the rotation of the pedal.

21. The pedal device according to any one of claims 1 to 7, characterized in that, A pedal hole is formed on the back of the pedal. An arm hole corresponding to the pedal hole is formed in the arm portion. The pedal device also includes a rod-shaped component that is inserted into the pedal hole and the arm hole. The rod-shaped component is inserted into the pedal hole and the arm hole, thereby connecting the arm to the back of the pedal.

22. The pedal device according to claim 21, characterized in that, The pedal hole extends through the back of the pedal and the side of the pedal opposite to the back of the pedal, i.e., the pedal surface.

23. The pedal device according to any one of claims 1 to 7, characterized in that, A pedal hole is formed in the pedal, which penetrates the back of the pedal and the surface of the pedal opposite to the back of the pedal. The arm has an insertion portion that inserts into the pedal hole and a support portion connected to the insertion portion on the side opposite to the pushing portion. Regarding the support portion, in a direction orthogonal to the axial direction of the connecting rod, the length of the support portion is longer than the length of the insertion portion, thereby allowing the support portion to contact the pedal. Since the insertion part is inserted into the pedal hole, the arm is connected to the back of the pedal.

24. The pedal device according to claim 22, characterized in that, It also includes a pad that is attached to the surface of the pedal and covers the pedal hole.

25. The pedal device according to any one of claims 1 to 7, characterized in that, A pedal hole is formed in the pedal, which penetrates the back of the pedal and the surface of the pedal opposite to the back of the pedal. A portion of the arm is inserted into the pedal hole, thereby connecting the arm to the back of the pedal.

26. The pedal device according to any one of claims 1 to 7, characterized in that, The pedal device is mounted on the vehicle. Regarding the pedal, as the operator applies more pressure to the pedal, the portion of the pedal that is closer to the front of the vehicle than the axis of the axle rotates toward the floor side inside the vehicle compartment.

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