Machine element or mechanism – Gearing – Interchangeably locked
Patent
1982-07-09
1985-06-18
Krizmanich, George H.
Machine element or mechanism
Gearing
Interchangeably locked
74333, F16H 308
Patent
active
045234914
ABSTRACT:
The invention provides a constant mesh reverse gear operable by a standard rotary shift drum and fork system which is located within the engine casing along with from 3-5 forward gears of the motorcycle transmission. The reverse gear is mounted on the countershaft and engages an idler mounted on its own separate shaft in engagement with a main shaft reverse gear. The idler pin is secured between a pair of plates mounted on the transmission endplate. These plates also have apertures therein to receive the main shaft and countershaft. A standard toe-operated shift lever engages a shift arm which in turn engages a pawl and cam plate assembly for rotating the rotary shift drum. The shift forks are operated by pins riding in cam grooves on the rotary shift drum. An indicator plate on the cam plate assembly contains a contact boss. The contact boss engages electrical contacts in the rear of the engine casing so that the engagement of the transmission in reverse gear may be positively indicated. In turn, these contacts activate both a back-up beeper and back-up lights so that both the rider and pedestrians will be aware that the machine is in reverse gear, ready to be backed up. In the preferred embodiment shown, four forward gears, neutral and reverse, are provided.
REFERENCES:
patent: 1166656 (1916-01-01), Brimson
patent: 4136575 (1979-01-01), Labat
patent: 4449602 (1984-05-01), Dittmann, Jr.
Krizmanich George H.
Municipal Industries, Inc.
Wright Dirk
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