Continuously variable gear device

Details Continuously variable gear device Continuously variable gear device

1983-04-21

1986-02-25

Staab, Lawrence J.

Machine element or mechanism

Alternating-motion driven device with means during operation...

74833, 74 892, 74108, 74522, 74110, F16H 3508, G05G 104

Patent

active

045720282

ABSTRACT:
The present invention pertains to a continuously variable gear device for converting a rotary motion into a linear motion which is dependent on the angle of rotation. The gear device comprises a swivel arm which is rotatable about a fulcrum and is attached to a guide structure on the input and output sides, respectively, of the gear device. Each guide structure is provided with a sliding member to which strings are attached. The swivel arm has guide slots formed on either side of the fulcrum and each guide structure has a roller bearing which engages one of the slots. The mutual distance between the two guide structures is adjustable, by moving one of the guide structures along a positioning rail to vary the transmission ratio of the device.

REFERENCES:
patent: 1890623 (1932-12-01), Scott
patent: 3043156 (1962-07-01), Hannon
patent: 3439555 (1969-04-01), Rech
Mechanisms, Linkages & Mechanical Controls, "10 Ways to Change Straight-Line Direction," Strasser, p. 80.
Mechanisms, Linkages & Mechanical Controls, "Linkages for Accelerating & Decelerating Linear Strokes" Hyler, p. 70.

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