Books – strips – and leaves – Book – element thereof – or accessory therefor – Covers
Patent
1997-07-21
1999-03-30
Fridie, Jr., Willmon
Books, strips, and leaves
Book, element thereof, or accessory therefor
Covers
281 211, 281 29, 402 73, B42D 300
Patent
active
058879013
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a metal binder and a file with the metal binder, and more particularly to a detachable metal binder and a file with the detachable metal binder.
BACKGROUND ART
Generally, a file with a metal binder, as shown in FIG. 6, is comprised of a cover (10) and a metal binder (20), in which a bottom plate (20a) of the metal binder (20) is mounted on a spine (10a) of the cover (10). In FIG. 6, the referenced symbol, 10b indicates a front cover or a back cover of the cover (10), and the referenced symbol, 20b indicates a side plate of the metal binder (20), respectively.
In this type of file, both of the cover and the metal binder are made firmly and connected fixedly each other through a connection pin such as a rivet, and it is well-known that this kind of file is broadly used as a file of relatively large capacity.
The conventional file with the metal binder involves, however, the following problems.
Namely, in the conventional file, the cover and the metal binder are made firmly and connected fixedly, but the "fixed connection" has difficulty in a recycling of natural resources for separating (or assorted collection) a file (disposal) into a cover (paper) and a metal binder (metal). Accordingly, the conventional file has been required to be separated into the cover and the metal binder when desired by a user.
The purpose of the present invention is to provide a detachable metal binder designed to be detached from a file when needed by a user, and a file with the detachable metal binder.
DISCLOSURE OF INVENTION
The purpose of the present invention is performed by providing a detachable metal binder in which a bottom plate is mounted on a spine of a cover by means of a connection pin, which is characterized by comprising a restriction means provided in each corner of the bottom plate providing a locking hole portion for locking a clamping portion of the connection pin, a passing-through hole through which the clamping portion is allowed to pass, and a guide-opening for establishing a communication between the passing-through hole and the locking hole and allowing the movement of a shaft portion of the connection pin that connects an extended diameter head portion and the clamping portion thereof, the guide-opening being formed substantially in parallel to a side edge of the bottom plate, and each locking hole portion of the restriction means is formed at a closer position to one of edge portions which are opposed each other in the bottom plate than the passing-through hole communicating with the locking hole portion.
The purpose of the second invention is to provide a detachable metal binder in which a bottom plate is mounted on a spine of a cover by means of a connection pin, which is characterized by comprising a rotation means provided in a center of the bottom plate to rotatably attach the metal binder into the spine, a restriction means provided in each corner of the bottom plate providing a locking hole portion for locking a clamping portion of the connection pin, a passing-through hole through which the clamping portion is allowed to pass, and a guide-opening for establishing a communication between the passing-through hole and the locking hole and allowing the movement of a shaft portion of the connection pin that connects an extended diameter head portion and the clamping portion thereof, and a locking means in which the connection pin for locking the bottom plate in a locking position of the locking hole portion is respectively arranged between the restriction means on one edge of the bottom plate and the rotation means and between the restriction means on the opposite edge of the bottom plate and the rotation means, wherein the guide-opening allows a relative movement of the connection pin and the bottom plate so that the passing-through hole is able to accommodate the connection pin when the bottom plate is rotated by a certain angle from the locking position.
The purpose of the third invention is to provide a file with a detachable metal binder inc
REFERENCES:
patent: 1556721 (1925-10-01), Schade
patent: 3175847 (1965-03-01), McKowen
patent: 4730950 (1988-03-01), Ominato
patent: 5622386 (1997-04-01), Young
Callan Edward W.
Fridie Jr. Willmon
King Jim Co. Ltd.
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