Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1988-06-22
1989-02-07
Werner, David
Winding, tensioning, or guiding
Coil holder or support
Spool or core
242 717, 354275, 354277, 206389, G03B 1726, B65D 8566
Patent
active
048026336
ABSTRACT:
The spool of a cartridge or cassette of web material is locked against rotation during shipping and handling by a "one-shot" locking member which has a fixed portion and a movable portion joined along a bendable connection. The movable portion is in engagement with the spool while the movable portion is mounted on the body of the cartridge. The locking member is released by bending the movable portion about the connection and stressing the material of the connection beyond its elastic limit. In one embodiment the locking member has a sector gear portion on its movable end normally engaged with a bull gear on the spool. In a second embodiment, the leaf-like locking member has a partially cut-out fixed portion intermediate its ends, joined to the member by a bendable hinge, and has ratchet teeth which engage ratchet teeth on the spool, permitting the spool to be rotated in only one direction while the locking member is engaged. A protuberance on the locking member extends into a pin access opening as a light seal and as a push surface for an operating pin. A frangible connection secures the movable portion in place and is broken during release and requires a higher intial force to disengage the locking member from its locking position than that required to bend the locking member about the hinge.
REFERENCES:
patent: 3613876 (1971-10-01), Kohler et al.
patent: 3784001 (1974-01-01), Bushnell et al.
patent: 3807840 (1974-04-01), Cook et al.
patent: 4394989 (1983-07-01), Moris
patent: 4403845 (1983-09-01), Bulens et al.
patent: 4513928 (1985-04-01), Hackett
patent: 4553717 (1985-11-01), Takagi
patent: 4572461 (1986-02-01), Horikawa et al.
patent: 4605325 (1986-08-01), Hofmann
patent: 4638393 (1987-01-01), Oishi et al.
patent: 4679110 (1987-07-01), Schoettle et al.
patent: 4703384 (1987-10-01), Kawada et al.
patent: 4719529 (1988-01-01), Oishi et al.
The Mead Corporation
Werner David
LandOfFree
Movable cartridge 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 Movable cartridge lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Movable cartridge lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1080519