Machine element or mechanism – Gearing – Rotary bodies
Patent
1987-07-17
1988-05-31
Herrmann, Allan D.
Machine element or mechanism
Gearing
Rotary bodies
74409, F16H 5518
Patent
active
047473215
ABSTRACT:
The invention is an anti-backlash gear assembly. The gear assembly comprises first and second gears mounted on a common shaft and rotatable with respect to one another about the axis of rotation. The first gear has a slot. A fastener having a threaded end extends from the far side of the second gear into the slot. A cam member located within the slot incorporates a cam surface thereon and is threaded to the fastener. Thus, rotation of the cam member varies the distance of the cam surface to the walls of the slot. A cam follower is included having first and second ends with the first end in slideable contact with the cam surface. A Belleville spring washer is mounted between the second end of the cam follower and a side wall. Thus, the gear assembly can be easily engaged with a mating gear such as a rack gear, because the teeth of the first and second gears need not be biased apart. Once installed, the cam member can be rotated causing the cam surface to force the Belleville spring washer against the wall, causing the gears to rotate in opposite directions about the axis of rotation. Thus, the amount of rotation of the cam member determines the amount of loading of the gear teeth.
REFERENCES:
patent: 1033468 (1912-07-01), Raymond
patent: 1386089 (1921-08-01), Butzen
patent: 2382846 (1945-08-01), Barber
patent: 2679167 (1954-05-01), Nichinson
patent: 2703497 (1955-03-01), Townsend
patent: 2767652 (1956-10-01), Dietrich et al.
patent: 2880625 (1959-04-01), Thomas
patent: 3035454 (1962-05-01), Luning
patent: 3407727 (1968-10-01), Fischer
patent: 3803936 (1974-04-01), Kroeper
patent: 4072064 (1978-02-01), Lloyd
patent: 4305307 (1981-12-01), Kiunke
patent: 4582360 (1986-04-01), Becker
Dachs Louis L.
Herrmann Allan D.
Lockheed Corporation
LandOfFree
Anti-backlash gear assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Anti-backlash gear assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-backlash gear assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1868087