Vehicle pedal connection structure

Abstract

To suppress clevis lateral oscillation in the vehicle width direction and improve the touch feeling of a vehicle pedal.SOLUTION: A vehicle pedal connection structure 10 is provided with a vehicle pedal 1, a generally U-shaped clevis 2 positioned so that the vehicle pedal 1 is sandwiched between left and right plate portions 21a and 21b, and a push rod 3 extending in the longitudinal direction in front of the vehicle pedal 1 and connected at its rear end to the clevis 2, the left and right plate portions 21a and 21b of the clevis 2 are rotatably supported on the vehicle pedal 1, and force applied by the driver to the vehicle pedal 1 is transmitted to the push rod 3 via the clevis 2, leaf springs 63a and 63b are provided between the left and right plate portions 21a and 21b of the clevis 2 and the vehicle pedal 1, respectively, and restoring forces of the leaf springs 63a and 63b act in directions in which the plate portions 21a and 21b are moved away from the vehicle pedal 1.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a vehicle pedal connecting structure that connects a vehicle pedal to a push rod. [Background technology]

[0002] Patent Document 1 discloses a vehicle pedal connection structure comprising a vehicle pedal rotatably supported on the vehicle body via a rotation axis extending in the vehicle width direction, a roughly U-shaped clevis arranged to sandwich the vehicle pedal between plate portions on both the left and right sides, and a push rod extending in the front-to-rear direction in front of the vehicle pedal and having its rear end connected to the clevis, wherein the plate portions on both the left and right sides of the clevis are rotatably supported on the vehicle pedal, and force applied by the driver to the vehicle pedal is transmitted to the push rod via the clevis. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-004058 Summary of the Invention [Problem to be solved by the invention]

[0004] In the vehicle pedal connecting structure disclosed in Patent Document 1, through holes are formed in the plate portions on both sides of the clevis and the vehicle pedal, and a clevis pin is provided as a rotation axis passing through these through holes. Furthermore, there is a gap between the plate portions on both sides of the clevis and the vehicle pedal, and the inner diameters of these through holes are larger than the outer diameter of the clevis pin, allowing the clevis to swing left and right relative to the vehicle pedal. Therefore, when a driver presses the pedal pad of the vehicle pedal with their foot, the clevis swings left and right, impairing the feel of operating the vehicle pedal.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to suppress the swinging of the clevis in the vehicle width direction and improve the feel of the touch of the vehicle pedal. [Means for solving the problem]

[0006] The vehicle pedal connecting structure of the present invention comprises a vehicle pedal rotatably supported on the vehicle body via a rotation axis extending in the vehicle width direction, a substantially U-shaped clevis arranged so as to sandwich the vehicle pedal between left and right plate portions, and a push rod extending in the front-to-rear direction in front of the vehicle pedal and having its rear end connected to the clevis, wherein the plate portions on both the left and right sides of the clevis are rotatably supported on the vehicle pedal, and force applied to the vehicle pedal by the driver is transmitted to the push rod via the clevis, and the vehicle pedal connecting structure is characterized in that leaf springs are provided between the plate portions on both the left and right sides of the clevis and the vehicle pedal, and the restoring forces of the left and right leaf springs act in directions that move the plate portions away from the vehicle pedal, thereby suppressing swinging of the clevis in the vehicle width direction. [Effects of the Invention]

[0007] The present invention can suppress the swinging of the clevis in the vehicle width direction, thereby improving the feel of the touch of the vehicle pedal. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a vehicle pedal connecting structure according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a cross-sectional view taken along line AA in FIG. [Figure 3] 1 is a perspective view of a clevis swing suppression component used in the vehicle pedal connecting structure of the present embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] A vehicle pedal connecting structure 10 according to an embodiment of the present disclosure will be described below with reference to Figures 1 to 3. The arrows FR, UP, and RH shown in the following drawings indicate the forward direction (direction of travel), upward, and rightward directions of the vehicle, respectively. The opposite directions of the arrows FR, UP, and RH indicate the rearward direction, downward, and leftward directions of the vehicle, respectively. Hereinafter, when the terms "front-rear," "left-right," and "up-and-down" are used in the description, they refer to the front-rear direction of the vehicle, the left-right direction of the vehicle (vehicle width direction), and the up-and-down direction of the vehicle, unless otherwise specified.

[0010] FIG. 1 is a perspective view of a vehicle pedal connecting structure 10 according to this embodiment. As shown in FIG. 1, the vehicle pedal connecting structure 10 includes a brake pedal 1 as a vehicle pedal. The brake pedal 1 is composed of a pedal arm 11 extending in the vertical direction and a pedal pad (not shown) provided at the lower end of the pedal arm 11. The upper end of the pedal arm 11 is rotatably supported on the vehicle body via a rotation shaft 12 extending in the vehicle width direction. Therefore, when a driver depresses the pedal pad forward with their foot, the brake pedal 1 is pushed forward by rotational movement centered on the rotation shaft 12.

[0011] Fig. 2 is a cross-sectional view taken along line AA in Fig. 1. As shown in Fig. 2, the vehicle pedal connecting structure 10 includes a substantially U-shaped clevis 2 arranged so that the front portion of the pedal arm 11 is sandwiched between a right plate portion 21a and a left plate portion 21b, and a push rod 3 extending in the front-rear direction in front of the brake pedal 1 and having its rear end connected to the clevis 2. A through hole 22a is formed in the right plate portion 21a of the clevis 2, and a through hole 22b is formed in the left plate portion 21b. A through hole 13 is formed in the pedal arm 11. A clevis pin 4 is inserted into the through holes 22a and 22b formed in the clevis 2 and the through hole 13 formed in the pedal arm 11, so that the right plate portion 21a and the left plate portion 21b of the clevis 2 are rotatably supported on the brake pedal 1 via the clevis pin 4. Therefore, when the driver presses the pedal pad forward with his / her foot, the brake pedal 1 is pushed forward, and the force applied by the driver to the brake pedal 1 is transmitted to the push rod 3 via the clevis 2, pushing the push rod 3 forward. When the push rod 3 is pushed forward in this manner, the vehicle brakes are applied.

[0012] As shown in FIG. 1, one end of a return spring 5 is connected to the left end of the clevis pin 4. The other end of the return spring 5 is connected to the vehicle body. The restoring force of the return spring 5 connected in this manner acts in a direction to return the brake pedal 1 to its initial position. Therefore, when the driver releases the force pressing forward on the brake pad with his / her foot, the brake pedal 1 returns rearward due to rotational movement around the rotation axis 12. Then, when the driver releases his / her foot from the brake pad, the restoring force of the return spring 5 returns the brake pedal 1 to its initial position.

[0013] The vehicle pedal connecting structure 10 includes a clevis swing suppressing component 6 having a substantially U-shape. FIG. 3 is a perspective view of the clevis swing suppressing component 6. As shown in FIG. 3, a through-hole 62a is formed in the right side plate portion 61a of the clevis swing suppressing component 6, and a through-hole 62b is formed in the left side plate portion 61b. A leaf spring 63a protruding inward is provided on the right side plate portion 61a of the clevis swing suppressing component 6. The leaf spring 63a is formed by making a U-shaped cut in the right side plate portion 61a of the clevis swing suppressing component 6, cutting and bending the leaf spring 63a inward from the side plate portion 61a. A flat portion 64a is formed on the innermost protruding portion of the leaf spring 63a. Furthermore, a leaf spring 63b protruding inward is provided on the left side plate portion 61b of the clevis swing suppressing component 6. The leaf spring 63b is formed by making a U-shaped cut in the left side plate 61b of the clevis vibration suppression component 6, cutting it inward from the side plate 61b, and bending it. A flat surface 64b is formed at the part of the leaf spring 63b that protrudes most inward. A through hole 65 through which the push rod 3 passes is formed in the front part of the clevis vibration suppression component 6.

[0014] As shown in FIG. 2 , the clevis swing suppressing component 6 is disposed along the inside of the clevis 2. The clevis pin 4 is inserted into the through-hole 62a in the right side plate portion 61a and the through-hole 62b in the left side plate portion 61b of the clevis swing suppressing component 6. Therefore, the right side plate portion 61a and the left side plate portion 61b of the clevis swing suppressing component 6 are rotatably supported on the brake pedal 1 via the clevis pin 4. The rear end of the push rod 3 is inserted into the through-hole 23 formed in the front portion of the clevis 2 and the through-hole 65 formed in the front portion of the clevis swing suppressing component 6. Therefore, the clevis swing suppressing component 6 is always maintained in a state of being disposed inside the clevis 2.

[0015] The leaf spring 63a of the clevis swing suppressing part 6 is disposed between the right plate portion 21a of the clevis 2 and the pedal arm 11. The flat portion 64a of the leaf spring 63a contacts the pedal arm 11, and the restoring force of the leaf spring 63a acts in a direction to move the right plate portion 21a of the clevis 2 away from the pedal arm 11. The leaf spring 63b of the clevis swing suppressing part 6 is disposed between the left plate portion 21b of the clevis 2 and the pedal arm 11. The flat portion 64b of the leaf spring 63b contacts the pedal arm 11, and the restoring force of the leaf spring 63b acts in a direction to move the left plate portion 21b of the clevis 2 away from the pedal arm 11. In this way, the restoring force of leaf spring 63a acts in a direction moving right plate portion 21a of clevis 2 away from pedal arm 11, and the restoring force of leaf spring 63b acts in a direction moving right plate portion 21b of clevis 2 away from pedal arm 11, thereby adjusting the position of clevis 2 so that push rod 3 is always positioned in front of pedal arm 11 and suppressing swinging of clevis 2 in the vehicle width direction. In this way, leaf spring 63a and leaf spring 63b suppress swinging of clevis 2 in the vehicle width direction, and therefore vehicle pedal connecting structure 10 suppresses left and right movement of clevis 2 when the driver depresses the pedal pad with his foot, thereby improving the feeling of operating brake pedal 1.

[0016] <Supplementary information on the embodiment> The vehicle pedal connecting structure of the present disclosure is not limited to the above-described embodiment, and may be embodied in various forms within the scope of the present disclosure. For example, the vehicle pedal to which the vehicle pedal connecting structure is applied may be a clutch pedal or an accelerator pedal other than a brake pedal. [Explanation of symbols]

[0017] 1 brake pedal, 2 clevis, 3 push rod, 4 clevis pin, 5 return spring, 6 clevis oscillation suppression part, 10 vehicle pedal connection structure, 11 pedal arm, 12 rotating shaft, 13 through hole, 21a, 21b plate portion, 22a, 22b, 23 through hole, 61a, 61b side plate portion, 62a, 62b through hole, 63a, 63b leaf spring, 64a, 64b flat portion, 65 through hole.

Claims

[Claim 1] a vehicle pedal rotatably supported on a vehicle body via a rotation shaft extending in a vehicle width direction; a substantially U-shaped clevis disposed so as to sandwich the vehicle pedal between left and right plate portions; a push rod extending in the front-rear direction in front of the vehicle pedal, the rear end of the push rod being connected to the clevis, The plate portions on both the left and right sides of the clevis are rotatably supported by the vehicle pedal, A vehicle pedal connecting structure in which a force applied by a driver to the vehicle pedal is transmitted to the push rod via the clevis, leaf springs are provided between the plate portions on both the left and right sides of the clevis and the vehicle pedals, A vehicle pedal connection structure characterized in that the restoring forces of the leaf springs on both the left and right sides act in a direction that moves the plate portion away from the vehicle pedal, thereby suppressing the clevis's swinging movement in the vehicle width direction.

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