Pedal device
AssigneeLucas Industries public limited company
InventorGlynne T. Bowsher
Life of this patent
Estimating the term…
Abstract
A pedal device, primarily for an electrically operated vehicle brake, uses a pedal pivotally mounted for angular movement relative to a base, a leaf spring attached to the free end of the pedal and stressed by being urged by angular movement against a surface of a bearing block, the location of engagement of the spring on the surface being progressively varied during pedal movement to obtain a predetermined ratio between pedal movement and pedal effort depending upon the location, and an electrical potentiometer arranged to be actuated by the pedal angular movement to produce an output proportional thereto.
Claims20
A pedal device comprising:
- a pedal pivotally mounted for rotation about a pivot axis;
- a leaf spring mounted on said pedal in a cantilever manner;
- a bearing means;
- a bearing surface on said bearing means engageable with said leaf spring and having a configuration and location relative to said leaf spring so that the position of engagement varies during rotation of said pedal to produce a predetermined ratio between pedal movement and pedal load depending on said position of engagement;
- and
- an output device mounted in a position relative to said pedal and adapted to be operated by said pedal for producing an electrical output in response to pedal rotation movement.
Dependencies are inferred from the claim text.