Passive gravity-compensating mechanisms

Details Passive gravity-compensating mechanisms Passive gravity-compensating mechanisms

2005-05-31

2005-05-31

Ramirez, Ramon O (Department: 3632)

Supports

Brackets

Adjustable

C074S469000, C248S292120

Reexamination Certificate

active

06899308

ABSTRACT:
Mechanisms for passive gravity compensation for a system of linkage arms are provided. Gravity compensation is provided through a pair of non-circular gear profiles, with an end of each linkage arm connected to a separate gear set of two non-circular cam bodies, by way of separate cables. Springs in the gear sets provide tension in the cables. The tension in each cable varies according to the angle through which the cam bodies have turned as a result of the co-operating non-circular surfaces of the cam bodies. This, in turn is based on the amount the arms have turned and thereby allows the tension in the cables to compensate for the moments on the arms due to gravity, whatever angles they are at, independently of the angle of the other arm. To achieve this for the first arm of the linkage, the tension in the cable leading to the second arm of the linkage is also transmitted as a torque to the first arm through a pulley mounted on the rotation axis of the first arm.

REFERENCES:
patent: 4230210 (1980-10-01), Hintsch
patent: 4266747 (1981-05-01), Souder et al.
patent: 4311338 (1982-01-01), Moorhouse
patent: 4383455 (1983-05-01), Tuda et al.
patent: 4559035 (1985-12-01), Benjamin et al.
patent: 4775289 (1988-10-01), Kazerooni
patent: 5415057 (1995-05-01), Nihei et al.
patent: 6732988 (2004-05-01), Ihalainen et al.
patent: 2004/0064947 (2004-04-01), Yanagimoto et al.
patent: 06-71577 (1994-03-01), None
patent: 9-254073 (1996-03-01), None
patent: 9-254073 (1997-03-01), None
patent: WO 92/05016 (1992-02-01), None

Affiliated with

Also associated with

Rating

Passive gravity-compensating mechanisms does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Passive gravity-compensating mechanisms, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Passive gravity-compensating mechanisms will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3396960