Unidirectional gear transmission

Details Unidirectional gear transmission Unidirectional gear transmission

1978-10-31

1980-09-23

Truhe, J. V.

Horology: time measuring systems or devices

Display trains

74462, 74436, 368 76, G04B 1902, G04C 300, F16H 5506, F16H 5517

Patent

active

042235286

ABSTRACT:
A unidirectional gear transmission of reduced axial thickness advantageou employed in timepieces is adapted to be driven by a stepping motor. The driving gear is provided with an alternating pattern of teeth having a first thickness and spacing and sets of two teeth having greater thickness and spacing. The driven gear is provided with an alternating pattern of teeth corresponding to the first thickness teeth of the driving gear and two spaces corresponding to the greater thickness teeth of the driving gear separated by a single tooth. Regular stepping rotation in either sense can be transmitted from the driving gear to the driven gear, but transmission of rotation from driven to driving gear is prevented.

REFERENCES:
patent: 3813952 (1974-06-01), Fehrenbacher
patent: 4041794 (1977-08-01), Belot et al.
patent: 4051744 (1977-10-01), Oshima
patent: 4104859 (1978-08-01), Ogihara et al.
patent: 4108016 (1978-08-01), Muranishi

Affiliated with

Also associated with

Rating

Unidirectional gear transmission does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Unidirectional gear transmission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unidirectional gear transmission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-639421