Elevator cab position sensing with reduced operating noise

Details Elevator cab position sensing with reduced operating noise Elevator cab position sensing with reduced operating noise

1993-08-20

1994-11-01

Noland, Kenneth W.

Elevator, industrial lift truck, or stationary lift for vehicle

Having specific stationary guiding structure for...

187394, B66B 702

Patent

active

053600851

ABSTRACT:
The position of the elevator cab in an elevator system is detected by sensing the location of the cab relative to a flexible graduated tape whose ends are fixed in the elevator hoistway. The tape is provided with detectable components which are spaced a predetermined distance apart on the tape. Sensors are fixed on the elevator cab assembly adjacent to the tape so that the sensors can detect each of the tape components as the elevator cab moves up and down in the hoistway. Guides are mounted on the cab assembly to engage the tape so as to ensure that the tape and sensors are properly positioned relative to each other so that the tape components will be detected by the sensors. The guides are mounted on leaf or blade springs so as to be able to move relative to the cab assembly in response to tape deflections and correct the tape deflections to guide the tape past the sensors without creating a significant amount of noise.

REFERENCES:
patent: 2498299 (1950-02-01), Rissler
patent: 3425516 (1969-02-01), Minejiro et al.
patent: 3554327 (1971-01-01), Takamura et al.
patent: 3856116 (1974-12-01), Savage
patent: 5135081 (1992-08-01), Watt et al.

Affiliated with

Also associated with

Rating

Elevator cab position sensing with reduced operating noise does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Elevator cab position sensing with reduced operating noise, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elevator cab position sensing with reduced operating noise will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1797052