Flexible or portable closure – partition – or panel – Roll type – With rotating means
Patent
1977-07-15
1979-02-13
Caun, Peter M.
Flexible or portable closure, partition, or panel
Roll type
With rotating means
160291, A47G 502
Patent
active
041390440
ABSTRACT:
Ball cord lock intended to be used for roller blinds and comprising a cord pulley having an axially extending stub axle for receiving and retaining one end of a roller blind rod, an endless ball cord arranged around the cord pulley and in engagement therewith and which during operation windsup and unwinds respectively a blind attached to the roller blind rod, a lock housing formed by two complementary housing halves which housing constitutes journal for and encloses the cord pulley, a bracket which is connected to the lock housing and which is intended to be mounted at a window, and a U-shaped cord locking portion formed in the lock housing for catching and retaining one of the loops of the ball cord whereby the rotation of the cord pulley in one direction and accordingly unwinding of the blind in wound-up condition is prevented. The U-shaped cord locking portion is arranged immediately adjacent the periphery of the cord pulley under one of the freely suspending loops of the ball cord. The open part of the U-shaped cord locking portion is directed towards the other of the loops of the ball cord. The depth of the U-shaped cord locking portion in vertical direction is increasing from the open part towards the closed part of the portion. The edge surfaces of the U-shaped cord locking portion located closest to the cord pulley constitutes a slip plane for the balls of the ball cord.
REFERENCES:
patent: 1613071 (1927-01-01), Williams
patent: 2350085 (1944-05-01), Yashan
patent: 2577046 (1951-12-01), Svirsky
patent: 2894578 (1959-07-01), Caesar et al.
patent: 2907549 (1959-10-01), Walker
patent: 3424224 (1969-01-01), Lowe
AB Perma System
Caun Peter M.
LandOfFree
Ball cord lock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ball cord lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ball cord lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-686873