Pocket, especially for use with loose-leaf ring binders

Details Pocket, especially for use with loose-leaf ring binders Pocket, especially for use with loose-leaf ring binders

1998-11-30

2001-03-06

Wellington, A. L. (Department: 3722)

Binder device releasably engaging aperture or notch of sheet

Sheet

C281S002000, C281S038000, C283S061000

Reexamination Certificate

active

06196750

ABSTRACT:

TECHNICAL FIELD
The present invention relates to a pocket, especially for use with loose-leaf ring binders, said pocket being of the kind comprising
a) a plurality of holes placed adjacent at least one edge of said pocket and adapted for releasable engagement with means capable of penetrating said holes.
BACKGROUND ART
Document DE-A1-2,641,098 discloses a pocket for use in storing photographs in a specially designed holder. According to this document, one edge region of the pocket
2
is a reinforcing strip
10
provided with holes
11
and
12
, to which slits
13
and
14
, respectively, extend from the outer edge of said strip
10
. These slits make it possible to bring a holding member
5
, preferably a rubber cord, into and out of engagement with said holes
11
and
12
. These holes are not, however, used to support the pockets
2
in the holder
1
, this function being fulfilled by slits
4
in the strip
10
co-operating with a projection
3
on the holder
1
.
It will be realized that the pocket
2
disclosed in the above document is not suitable for use in loose-leaf ring binders, especially when there is a need for both
i) retaining the pocket, even when heavily loaded with documents, in the binder without a risk of it coming loose inadvertently, and
ii) removing and inserting the pocket without having to open the rings in the binder.
DISCLOSURE OF THE INVENTION
It is the object of the present invention to provide a pocket of the kind referred to initially, with which it is possible by means of simple constructional features to achieve the effects described in items i) and ii) above, and this object is achieved by means of the following new feature:
b) that for each hole a slit extends from said edge into the hole, each slit opens tangentially into the hole concerned at the part of said hole lying most distant from said edge, the region adjacent said edge and in which said holes are formed being reinforced.
The combination of slits and holes is known from document U.S. Pat. No. 4,193,704, vide esp. FIG. 8, but not in connection with pockets of the kind, with which the present invention is concerned. Thus, this document mainly concerns the releasable attachment of sheets in a so-called wire binder using a helically wound wire as the “back”. Acording to this document, the slits form an angle with the edge of approx. 80 degrees, so that the “hook effect” provided by the—apparently un-reinforced—region bounded by each hole, its associated slit and the edge is limited.
The use of a reinforced edge region does, however, ensure that this “hook effect” is sufficient to achieve the effect described in item i) above, without compromising the effect described in item ii).
Advantageous embodiments of the pocket according to the invention, the effects of which—beyond what is obvious—are explained in the following detailed part of the present description, are set forth in claims 2-11.


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