Electronic foot pedal having improved biasing arrangement

Details Electronic foot pedal having improved biasing arrangement Electronic foot pedal having improved biasing arrangement

1991-01-15

1992-07-28

Scherbel, David A.

Machine element or mechanism

Control lever and linkage systems

Elements

74512, 338153, 200 6189, 267272, 267156, G05G 114

Patent

active

051332256

ABSTRACT:
An electronic foot pedal for outputting an electrical signal proportional to the degree a treadle is pivoted. The electronic foot pedal has an improved spring arrangement for yieldably biasing the treadle toward its home position. Dual springs are provided, independently mounted and supplementary to each other. Each spring has an adequate biasing force to urge the treadle to its home position. The springs are of a ribbon-like material that are wound into a flat spiral. The springs are subjected mainly to bending forces and have flexure as the treadle is pivoted to its pivotal limits.

REFERENCES:
patent: 1099646 (1914-06-01), Gresser
patent: 1830441 (1931-11-01), Mulhollen
patent: 2042202 (1936-05-01), Althouse
patent: 2379774 (1945-07-01), Wyer
patent: 2713820 (1955-07-01), Horii
patent: 2797431 (1957-07-01), Loria
patent: 2934785 (1960-05-01), Heuer
patent: 4161341 (1979-07-01), Reinecke et al.
patent: 4179949 (1979-12-01), Hildebrecht
patent: 4528590 (1985-07-01), Bisacquino et al.
patent: 4976166 (1990-12-01), Davis et al.

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