Shock absorbent shifting device

Details Shock absorbent shifting device Shock absorbent shifting device

1978-03-31

1981-06-09

Gonzales, John

350255, 350430, G02B 704, G02B 1514

Patent

active

042721601

ABSTRACT:
In a shifting device, wherein a shifting operation is effected by the engagement of a guide pin with a cam groove, which is delineated by a control face for guiding the guide pin, and a back-up face serving no guide pin guidance function. The guide pin is so constructed as to be normally maintained in engagement with the control face of the cam groove, so as to be shifted by engagement with the control face of the cam groove during the normal shifting operation. In the event that an undesired shock is imparted to the shifting device, the guide pin is adapted to impinge on the back-up face of the cam groove, rather than on the control face thereof, so that the engagement between the guide pin and the control face of the cam groove is maintained in an optimum condition, without being damaged due to such a shock, thus ensuring an accurate shifting operation of the shifting device.

REFERENCES:
patent: 2006464 (1935-07-01), Laube et al.
patent: 3663093 (1972-05-01), Iida
patent: 3754473 (1973-08-01), Massey
patent: 3889282 (1975-06-01), Hashimoto
patent: 3890036 (1975-06-01), Grey
patent: 3897998 (1975-08-01), Someya et al.
patent: 4045128 (1977-08-01), Momiyama
patent: 4175831 (1979-11-01), Ito

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