Adjustable brake, clutch and accelerator pedals
View Patent ↗An adjustable control pedal for a motor vehicle includes a first member having a slot formed therein, a pin laterally extending into the slot and having an abutment facing the first member on a side of the first member opposite the second member, and a second member rigidly secured to the pin and movable relative to the first member along the slot. A plastic bushing encircles the pin and extends into the slot. The bushing has a flange engaging the first member on a side of the first member opposite the second member. A plastic washer encircles the pin and is located between the first and second members. A spring washer such as a wave or Belleville washer is located between the abutment and the flange and resiliently biases the second member relative to the first member to resist relative lateral movement between the first and second members to reduce lash therebetween. The pin can be ether a guide pin or a drive pin of the control pedal. Various embodiments are disclosed wherein the first and second members are upper and lower pedal arms respectively and are a mounting bracket and an upper pedal arm respectively.
1. An adjustable control pedal comprising, in combination:
a pivotable upper arm having first and second guide slots and a drive slot formed therein;
wherein the upper arm pivots about a pivot axis which is spaced apart from the drive slot;
wherein the first and second guide slots and the drive slot are each straight;
a lower arm having a lower end carrying a pedal and operatively connected to the upper arm for selected movement relative to the upper arm;
a first pin secured to the lower arm and laterally extending into the first guide slot;
a second pin secured to the lower arm and laterally extending into the second guide slot; and
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm and including:
a screw carried by the upper arm so that the screw moves with the upper arm as the upper arm pivots about the pivot axis and remains at a fixed location relative to the upper arm as the lower arm is selectively moved relative to the upper arm;
a nut secured to the lower arm, laterally extending through the drive slot from the lower arm to the screw, threadably engaging the screw, and adapted to axially move along the screw upon rotation of the screw to move the lower arm relative to the upper arm; and
a motor operatively connected to the screw to selectively rotate the screw.
2. The adjustable control pedal according to claim 1 , wherein the first and second guide slots are formed on opposite sides of the drive slot.
3. The adjustable control pedal according to claim 1 , wherein the first and second guide slots are nonparallel.
4. The adjustable control pedal according to claim 3 , wherein the first and second guide slots are inclined.
5. The adjustable control pedal according to claim 1 , wherein weight of the lower arm is supported by the upper arm through the first and second pins.
6. The adjustable control pedal according to claim 1 , wherein the upper arm pivots about a pivot axis which remains at a fixed location relative to the upper arm as the lower arm is selectively moved relative to the upper arm.
7. The adjustable control pedal according to claim 1 , further comprising a third pin secured to the upper arm for connection to a device to be controlled by operation of the adjustable control pedal.
8. The adjustable control pedal according to claim 1 , wherein the drive slot is inclined.
9. The adjustable control pedal according to claim 1 , wherein the first and second guide slots extend entirely through the upper arm and the first and second pins extend entirely through the first and second guide slots respectively.
10. The adjustable control pedal according to claim 1 , the lower arm is located adjacent a first lateral side of the drive slot of the upper arm and the screw is located adjacent second lateral side of the drive slot of the upper arm opposite the first lateral side so that the lower arm and the screw are located on opposite lateral sides of the drive slot of the upper arm and the nut laterally extends through the drive slot from the lower arm to the screw.
11. An adjustable control pedal comprising, in combination:
a pivotable upper arm having first and second guide slots and a drive slot formed therein;
wherein the first and second guide slots are each straight;
wherein the upper arm pivots about a pivot axis;
a lower arm having a lower end carrying a pedal and operatively connected to the upper arm for selected movement relative to the upper arm;
a first pin secured to the lower arm and laterally extending into the first guide slot;
a second pin secured to the lower arm and laterally extending into the second guide slot;
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm and including:
a screw carried by the upper arm so that the screw moves with the upper arm as the upper arm pivots about the pivot axis and remains at a fixed location relative to the upper arm as the lower arm is selectively moved relative to the upper arm;
a nut secured to the lower arm, laterally extending through the drive slot from the lower arm to the screw, threadably engaging the screw, and adapted to axially move along the screw upon rotation of the screw to move the lower arm relative to the upper arm; and
a motor operatively connected to the screw to selectively rotate the screw; and
wherein the pivot axis remains at a fixed location relative to the upper arm as the lower arm is selectively moved relative to the upper arm.
12. The adjustable control pedal according to 11 , claim wherein the first and second guide slots are formed on opposite sides of the drive slot.
13. The adjustable control pedal according to claim 11 , wherein the first and second guide slots are nonparallel.
14. The adjustable control pedal according to claim 13 , wherein the first and second guide slots are inclined.
15. The adjustable control pedal according to claim 11 , wherein the pivot axis is spaced apart from the drive slot.
16. The adjustable control pedal according to claim 11 , wherein the drive slot is inclined.
17. The adjustable control pedal according to claim 11 , wherein the first and second guide slots extend entirely through the upper arm and the first and second pins extend entirely through the first and second guide slots respectively.
18. The adjustable control pedal according to claim 11 , wherein the lower arm is located adjacent a first lateral side of the drive slot of the upper arm and the screw is located adjacent second lateral side of the drive slot of the upper arm opposite the first lateral side so that the lower arm and the screw are located on opposite lateral sides of the drive slot of the upper arm and the nut laterally extends through the drive slot from the lower arm to the screw.
19. An adjustable control pedal comprising, in combination:
a pivotable upper arm having first and second guide slots and a drive slot formed therein;
wherein the first and second guide slots and the drive slot are each straight;
wherein the upper arm pivots about a pivot axis spaced apart from the drive slot;
a lower arm having a lower end carrying a pedal and operatively connected to the upper arm for selected movement relative to the upper arm;
a first pin secured to the lower arm and laterally extending into the first guide slot;
a second pin secured to the lower arm and laterally extending into the second guide slot;
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm and including:
a screw carried by the upper arm so that the screw moves with the upper arm as the upper arm pivots about the pivot axis and remains at a fixed location relative to the upper arm as the lower arm is selectively moved relative to the upper arm;
a nut secured to the lower arm, laterally extending through the drive slot from the lower arm to the screw, threadably engaging the screw, and adapted to axially move along the screw upon rotation of the screw to move the upper arm relative to the lower arm; and
a motor operatively connected to the screw to selectively rotate the screw; and
wherein the pivot axis remains at a fixed location relative to the upper arm as the lower arm is selectively moved relative to the upper arm.
20. The adjustable control pedal according to claim 19 , wherein the first and second guide slots are formed on opposite sides of the drive slot.
21. The adjustable control pedal according to claim 19 , wherein the first and second guide slots are nonparallel.
22. The adjustable control pedal according to claim 21 , wherein the first and second guide slots are inclined.
23. The adjustable control pedal according to claim 19 , wherein the drive slot is inclined.
24. The adjustable control pedal according to claim 19 , wherein the lower arm is located adjacent a first lateral side of the drive slot of the upper arm and the screw is located adjacent second lateral side of the drive slot of the upper arm opposite the first lateral side so that the lower arm and the screw are located on opposite lateral sides of the drive slot of the upper arm and the nut laterally extends through the drive slot from the lower arm to the screw.