Binder device releasably engaging aperture or notch of sheet – Sheet retainer with releasable keeper
Patent
1996-07-18
1998-01-20
Howell, Daniel W.
Binder device releasably engaging aperture or notch of sheet
Sheet retainer with releasable keeper
281 36, B42F 300
Patent
active
057094942
DESCRIPTION:
BRIEF SUMMARY
Binders are used for the book-like presentation and storage of objects or information mounted or contained on sheet-like data carriers. The present invention relates to binders constructed according to the modular backstrip principle. Such binders are described in WO 92/15 461.
Not only has the modular backstrip design been considerably improved in the present invention, but also new uses and applications have been created for this backstrip.
The principal feature of binders of the kind described in WO 92/15 461 is that the binder is closed off at the rear by an additional modular backstrip. In FIGS. 1 to 4 contained in WO 92/15 461, the actual modular backstrip and also the mounting posts for the punched data carriers are permanently attached to the side part. The opposite side part contains the insertion elements which fit into the recesses on the modular backstrip. On the side part are also located the insertion holes into which the heads of the mounting posts attached to side part engage. According to Claim 1 of WO 92/15 461, the insertion elements may be mounted optionally on side part or on side part.
Binders manufactured according to WO 92/15 461 already possess excellent sturdiness. At the point where the binder is opened, it is possible to read the two pages presented, as in a book, and also if necessary to write on them without hindrance, because there are no upward-projecting rings, locking hoops or other locking mechanisms to get in the way. Furthermore, there is no risk of the user being injured by the sharp ends of mounting posts of the kind used in particular in some types of ring binder mechanisms. Softer and thinner kinds of paper may be used as the data carriers because, as a result of the larger diameter of the mounting posts, there is much less risk of the paper tearing in the area of the punched hole. Thinner papers not only make it easier to turn the pages, but also greatly increase the storage capacity of the binder. Therefore, the paper costs are also indirectly reduced. Without the binder covers, the modular backstrip be adapted for storage in a hanging file system. Furthermore, when they are not quite or only partially full, modular backstrip binders of the type described in WO 92/15 461 do not require a separate clamping device to press the filed data carriers together. This is true, in particular, in the case of modular backstrip binders having four mounting posts arranged at spacings corresponding, for example, to the standard spacings used in four-ring binders. In modular backstrip binders which are not quite full, the information content is in fact better accessible than when the storage capacity is fully utilized. The rings of different thickness and curvature found, in particular, in ring binders, are dispensed with. This is particularly advantageous when the binders are stored in filing cabinets, etc. In addition, for binders of all widths, a standard hole diameter can be selected for the data carriers if the diameter of the mounting posts remains the same for backstrips of all widths. The actual, inside width of the binder can be used to its fullest extent for storage purposes because the tips of the mounting posts project into the insertion holes in the side part. The mounting posts are therefore always slightly longer than the actually available usable space. This therefore eliminates the often considerable amount of "dead space" caused by the mechanisms between the covers of the binder and the mounting mechanisms, or between the covers and the actual usable space allowed by the various individual mechanisms.
Despite the advantages listed above, there are still some weak points in the design of the modular backstrip binders of the type described in WO 92/15 461: can only be opened on one side, because the modular backstrip 2 is firmly attached either to side part or to side part. In the drawings to, it is in all cases side part to which the modular backstrip is attached. Therefore, new sheets can be added or removed only at the respective opposite side, by passing them
REFERENCES:
patent: 1372161 (1921-03-01), Mills
patent: 1805314 (1931-05-01), Morton
patent: 2083434 (1937-06-01), Crump
patent: 2315303 (1943-03-01), Unger
patent: 4730950 (1988-03-01), Omniato
patent: 5593243 (1997-01-01), Mori
Andoll G. Albert
Howell Daniel W.
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