Electric drive arrangement for a cord winding and dewinding winc

Details Electric drive arrangement for a cord winding and dewinding winc Electric drive arrangement for a cord winding and dewinding winc

1992-06-19

1994-04-05

Ro, Bentsu

Electricity: motive power systems

Automatic and/or with time-delay means

Movement, position, or limit-of-travel

160310, 160313, E06B 970, E06B 960, E05F 1510

Patent

active

053008677

ABSTRACT:
In an electric drive arrangement for a cord winding and dewinding winch (22), in particular for cord-operated screening and opening/closing devices for windows and doors, in which the operating cord (4) is connected with said device for moving it in one direction when winding up the cord on said winch (22), the latter being turned in one direction by means of an electric motor (12), while movement in the other direction is effected by a spring force acting on the device while dewinding the cord from the winch (22), the latter being turned by the electric motor (12) in the opposite direction, the winding and dewinding winch (22) for the cord is combined into a drive unit with the electric motor (12) and connected thereto by a transmission device, which is influenced by a braking force, means being provided for stopping the electric motor in response to suspension of the tension in the cord (4) caused by the movement in said other direction effected by the spring force, when dewinding the cord, said stopping means including a detector (18,19) influenced by the rotation of the winch (22).

REFERENCES:
patent: 3561520 (1971-02-01), Gill
patent: 4055023 (1977-10-01), Gatland et al.
patent: 4064648 (1977-12-01), Cary
patent: 4429265 (1984-01-01), Barnard
patent: 4917167 (1990-04-01), Voss et al.
patent: 4931708 (1990-06-01), Johnsen
patent: 5105131 (1992-04-01), Schap
patent: 5195569 (1993-03-01), Peterson et al.

Affiliated with

Also associated with

Rating

Electric drive arrangement for a cord winding and dewinding winc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electric drive arrangement for a cord winding and dewinding winc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric drive arrangement for a cord winding and dewinding winc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-514276