Loose leaf binder lock and operating member therefore

Details Loose leaf binder lock and operating member therefore Loose leaf binder lock and operating member therefore

1978-07-10

1980-05-06

Bell, Paul A.

Binder device releasably engaging aperture or notch of sheet

Opposed sheet retainers involving relative rectilinear travel

Telescopic retainers with means to telescopically drive...

B42F 300

Patent

active

042014921

ABSTRACT:
A loose-leaf binder is disclosed having a pair of separable cover members with rib portions and a centrally disposed fastening sleeve assembly disposed for insertion through a central aperture in the rib. An outer sleeve of said fastening sleeve assembly is tapered at one of its extremities to coact with ball locks carried by an inner sleeve member which is slidably disposed for limited longitudinal movement within said outer sleeve, and which is hollow at one of its extremities to receive the locking pin. The operating extremity of the inner sleeve member is provided with a transverse aperture which passes diametrically therethrough to receive an operating member in the form of a ring which is sized so that it will not interfere with closing of the cover no matter what the rotative position of the ring when disposed in the inoperative position which is flat, parallel to and in contact with the rib of the closed binder. The leg of the ring interconnecting same to the operating end of the inner sleeve is sized to pass completely through the ring connecting aperture formed therein and in contact with the rib. Alternatively the inner sleeve may be provided with the aperture through which the operating member passes without the need for the extending pin.

REFERENCES:
patent: 1598837 (1926-09-01), White
patent: 1700613 (1929-01-01), Meigs
patent: 2286060 (1942-06-01), Buenger et al.
patent: 2327873 (1943-08-01), Dawson
patent: 2472969 (1949-06-01), Guinane
patent: 2568227 (1951-09-01), Federbush

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