Brushless electric signal transmitting rotary device

Details Brushless electric signal transmitting rotary device Brushless electric signal transmitting rotary device

1991-02-21

1992-04-07

Stephan, Steven L.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

310 71, 310 75D, 439 15, B60R 1602, H01R 3504

Patent

active

051020610

ABSTRACT:
The brushless signal transmitting device comprises a rotor; a fixed housing for rotatably supporting the rotor; at least one gear in mesh between the rotor and the fixed housing; an intermediate member disposed between the rotor and the fixed housing and rotatable in synchronism with and in the same direction as the rotor at a predetermined speed reduction ratio via the gear; a guide roller supported on the intermediate member; and a flexible wiring member connected between the rotor and the fixed housing. The wiring member is wound up around the rotor counterclockwise, for instance, and then returned via the guide roller so as to be wound up around the intermediate member clockwise. Since the intermediate member is larger in diameter but smaller in rotative speed than that of the rotor, it is possible to reduce the length of the flexible wiring member required to rotate the rotor by a predetermined number of revolutions of the rotor.

REFERENCES:
patent: 3822834 (1974-07-01), Fjarlie
patent: 4661660 (1987-04-01), von Sothen et al.
patent: 4844359 (1989-06-01), Kato
patent: 4893037 (1990-01-01), Schwartz
patent: 4925122 (1990-05-01), Bannai
patent: 4927365 (1990-05-01), Schauer et al.
patent: 4928901 (1990-05-01), Bannai et al.
patent: 5023498 (1991-06-01), Abe

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