Linear feedback device for an actuator

Details Linear feedback device for an actuator Linear feedback device for an actuator

2007-02-18

2010-12-14

Hannon, Thomas R (Department: 3656)

Machine element or mechanism

Gearing

Directly cooperating gears

C324S207240

Reexamination Certificate

active

07849757

ABSTRACT:
A linear feedback device for an actuator comprises: a coiling belt, a return gear wheel, a driven member, and a sensing feedback device. The sensing linear feedback device serves to feedback the displacement data of the driven member that is moveable along a predetermined rail after engaging with the return gear wheel. The return gear wheel is coaxial with the coiling belt, and the coiling belt unwinds or retracts along with the actuator and drives the return gear wheel to rotate. The gear ratio between the return gear wheel and the driven teeth is used to adjust the back and forth moving distance of the probe. The linear feedback device can be installed in a small external hanging type body and offer an absolute position sensing function while preventing the error accumulation.

REFERENCES:
patent: 6246232 (2001-06-01), Okumura

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