Machine element or mechanism – Control lever and linkage systems – Foot operated
Patent
1986-03-07
1987-09-08
Smith, Gary L.
Machine element or mechanism
Control lever and linkage systems
Foot operated
74526, 267168, 267175, 267177, G05G 114, G05G 104, F16F 106
Patent
active
046915885
ABSTRACT:
An improved lever mechanism interlocked with a pedal in a sewing machine driving device, which lever mechanism includes a rod positioned on one side portion of a lever so as to act on the lever when the latter is pivoted in one direction from a neutral position, and first and second springs of different diameters disposed concentrically with the above rod so as to urge the rod in the direction opposite to the pivoting direction of the lever.
REFERENCES:
patent: 2157588 (1939-05-01), Brewer
patent: 2850274 (1958-09-01), Villar
patent: 3872739 (1975-03-01), Hudson et al.
Kumatani Hiroshi
Yamaura Yutaka
Luong Vinh
Mitsubishi Denki & Kabushiki Kaisha
Smith Gary L.
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