Rope tension measuring apparatus for use with an elevator

Details Rope tension measuring apparatus for use with an elevator Rope tension measuring apparatus for use with an elevator

1996-11-15

1998-03-24

Dombroske, George M.

Measuring and testing

Dynamometers

Responsive to force

73862451, 73828, G01L 500

Patent

active

057315280

ABSTRACT:
A rope tension measuring apparatus for measuring rope tension of a plurality of main ropes that suspend an elevator car and a counterweight and adjustment quantities of tension adjusting springs for the main ropes. The apparatus comprises a portable measuring device comprising traveling-wave detector means directly attached to the elevator main rope for detecting a traveling wave that is generated by applying an instantaneous displacement to the main rope, traveling-wave passage velocity computing means for measuring the passage velocity of the traveling wave, rope tension computing means for computing the rope tension based on the passage velocity, spring adjustment quantity computing means for computing a spring adjustment quantity for the rope tension adjusting springs, and output means for outputting these computed results, based on the variation of passage velocities of the plurality of main ropes. The apparatus works excellently with a high-lift elevator with its sensor easy to mount, and performs tension adjustment efficiently.

REFERENCES:
patent: 4979125 (1990-12-01), Kwun et al.
patent: 5359904 (1994-11-01), Luukkala
patent: 5454272 (1995-10-01), Miller et al.
Sonic Tension Meter STM303, by Unitta, Catalog 501., Jul. '92.

Affiliated with

Also associated with

Rating

Rope tension measuring apparatus for use with an elevator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rope tension measuring apparatus for use with an elevator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rope tension measuring apparatus for use with an elevator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2290429