Electric adjustable pedal system with mechanical active lock-up
First Claim
1. An adjustable pedal assembly comprising, in combination:
- an upper arm having a pivot fixed to a mounting bracket having a pivot axis;
a lower arm having a lower end carrying a pedal and an upper end operatively connected to the upper arm for selected movement relative to the upper arm;
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm;
wherein the drive assembly includes a drive screw, a drive nut which moves along the drive screw upon rotation of the screw, and a motor for selectively rotating the drive screw;
one of the upper arm and the lower arm having first and second camming surfaces and the other of the upper arm and the lower arm carrying first and second cam followers engaging the first and second camming surfaces respectively; and
wherein the first and second camming surfaces and the first and second cam followers lock the upper and lower arms together for mutual rotation about the pivot axis upon application of a load to the pedal when the lower arm is at any position relative to the upper arm and the drive screw and the drive nut do not connect the upper arm and the lower arm due to failure of the drive assembly.
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0 Petitions
Accused Products
Abstract
An adjustable pedal assembly for a motor vehicle an upper arm having a pivot axis and first and second generally planar members, and a lower arm having a lower end carrying a pedal and an upper end operatively connected to the upper arm for selected movement relative to the upper arm. The first and second members are generally parallel and spaced apart. The first and second members each form first and second camming surfaces at a peripheral edge thereof. The upper arm carries first and second cam pins laterally extending from the lower arm and engaging the first and second camming surfaces respectively. The first and second camming surfaces and the first and second cam pins are adapted to mechanically lock the upper and lower arms together for mutual rotation about the pivot axis upon application of a load to the pedal. Preferably a spring operably connects the upper and lower arms to resiliently bias the first and second cam pins into engagement with the first and second camming surfaces. A drive assembly is operatively connected to the lower arm to selectively move the lower arm relative to the upper arm so that the operator can selectively adjust the position.
75 Citations
23 Claims
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1. An adjustable pedal assembly comprising, in combination:
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an upper arm having a pivot fixed to a mounting bracket having a pivot axis;
a lower arm having a lower end carrying a pedal and an upper end operatively connected to the upper arm for selected movement relative to the upper arm;
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm;
wherein the drive assembly includes a drive screw, a drive nut which moves along the drive screw upon rotation of the screw, and a motor for selectively rotating the drive screw;
one of the upper arm and the lower arm having first and second camming surfaces and the other of the upper arm and the lower arm carrying first and second cam followers engaging the first and second camming surfaces respectively; and
wherein the first and second camming surfaces and the first and second cam followers lock the upper and lower arms together for mutual rotation about the pivot axis upon application of a load to the pedal when the lower arm is at any position relative to the upper arm and the drive screw and the drive nut do not connect the upper arm and the lower arm due to failure of the drive assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An adjustable pedal assembly comprising, in combination:
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an upper arm having a pivot fixed to a mounting bracket having a pivot axis and a generally planar member forming first and second camming surfaces at a peripheral edge thereof;
a lower arm having a lower end carrying a pedal and an upper end operatively connected to the upper arm for selected movement relative to the upper arm, the upper arm carrying first and second cam pins laterally extending from the lower arm and engaging the first and second camming surfaces respectively;
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm;
wherein the drive assembly includes a drive screw, a drive nut which moves along the drive screw upon rotation of the screw, and a motor for selectively rotating the drive screw;
wherein the first and second camming surfaces are formed by peripheral edges of the member and form arcuate paths for the cam pins; and
wherein the first and second camming surfaces and the first and second cam pins lock the upper and lower arms together for mutual rotation about the pivot axis upon application of a load to the pedal when the lower arm is at any position relative to the upper arm and the drive screw and the drive nut do not connect the upper arm and the lower arm due to failure of the drive assembly. - View Dependent Claims (19)
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20. An adjustable pedal assembly comprising, in combination:
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a mounting bracket;
an upper arm having a pivot fixed to a mounting bracket having a pivot axis, the upper arm having first and second generally planar members, the first and second members being generally parallel and spaced apart, the first and second members each forming first and second camming surfaces at a peripheral edge thereof;
a lower arm having a lower end carrying a pedal and an upper end operatively connected to the upper arm for selected movement relative to the upper arm, the upper arm carrying first and second cam pins laterally extending from the lower arm and engaging the first and second camming surfaces,respectively;
wherein the lower arm is spaced apart from the pivot pin;
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm;
wherein the drive assembly includes a drive screw, a drive nut which moves along the drive screw upon rotation of the screw, and a motor for selectively rotating the drive screw;
wherein the first and second camming surfaces are formed by peripheral edges of the member and form arcuate paths for the cam pins; and
wherein the first and second camming surfaces and the first and second cam pins lock the upper and lower arms together for mutual rotation about the pivot axis upon application of a load to the pedal when the lower arm is at any position relative to the upper arm and the drive screw and the drive nut do not connect the upper arm and the lower arm due to failure of the drive assembly. - View Dependent Claims (21)
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22. An adjustable pedal assembly comprising, in combination:
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an upper arm having a pivot axis;
a lower arm having a lower end carrying a pedal and an upper end operatively connected to the upper arm for selected movement relative to the upper arm;
a drive assembly operatively connected to the lower arm to selectively move the lower arm relative to the upper arm;
one of the upper arm and the lower arm having first and second camming surfaces and the other of the upper arm and the lower arm carrying first and second cam followers engaging the first and second camming surfaces respectively, wherein the first and second camming surfaces and the first and second cam followers are adapted to lock the upper and lower arms together for mutual rotation about the pivot axis upon application of a load to the pedal;
wherein the upper arm is a generally planar member;
wherein the first and second camming surfaces are formed by peripheral edges of the member; and
wherein the first camming surface is formed by a top edge of the member and the second camming surface is formed by a bottom edge of the member. - View Dependent Claims (23)
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Specification