Envelopes – wrappers – and paperboard boxes – File folder or file envelope – Expandable
Reexamination Certificate
1999-09-08
2001-09-11
Wellington, A. L. (Department: 3722)
Envelopes, wrappers, and paperboard boxes
File folder or file envelope
Expandable
C229S067100, C229S067400, C281S015100, C281S045000, C281S046000, C281S048000, C281S003100, C281S051000
Reexamination Certificate
active
06286752
ABSTRACT:
FIELD AND BACKGROUND OF THE INVENTION
The invention relates to a folder for papers, having a cover and a base joined together by a back, wherein the back can be adjusted in its width to accommodate the height of a stack of papers, to which end the back extends on the base side into an insertable tongue which is movable in a pocket which is joined to the base.
A folder of this kind is known from DE-PS 671 229. A stack of papers is held in the region of the back by an adaptedly exposable adhesive layer. The insertable tongue which is accommodated in freely displaceable manner is disposed, inside the pocket, between two leaf springs, so that a certain resistance is offered to its movability. Restraining means such as these are expensive and complicate initial assembly by insertion or, respectively, renewed insertion, if the insertable tongue should have slipped out again nonetheless.
Through EP-PS 382 179, there exists the proposal of forming the back of a letter file proportionally from an angled portion of the cover and from a portion of the base angled in opposite direction, the portions overlapping one another and thus facilitating a coexpansion of the back. However, this requires a technique which is complex in terms of connection, with elongated holes and bolts in the form of staples reaching through these holes.
SUMMARY OF THE INVENTION
It is an object of the invention to develop a folder for papers of the introductory-mentioned type, which is simply manufactured and easily used.
According to the invention, a folder for papers is provided of the introductory-mentioned type, which is of increased usefulness. The expensive matching of materials is also dispensed with. On the contrary, there results a grading-free and therefore environmentally friendly disposal. Concretely, it is provided that the movement of the insertable tongue in the pocket be limited by a stop. The limiting can be felt distinctly. This therefore ends the uncertainty arising in practice in regard to a mere restraining of the displacing movement. The corresponding means to this end is simple, in that the insertable tongue has a flap portion as stopper for the purpose of forming the stop. The flap portion can be taken directly into account when cutting out the corresponding component jointly forming the folder. It then proves to be an advantageous measure in terms of assembly for the flap portion to overlap the top side of the pocket. For this purpose, the pocket is open through in the direction of insertion. The overlap at the same time permits a visual control as to whether the stopping means are present or properly arranged. The pocket also can be realised from integral portions of the corresponding component, in this case the base, to be more precise in such a way that the pocket is formed from a folding tab joined to the base. This folding tab is simply tucked in transverse to the path of displacement of the insertable tongue. The flap portion is then turned down to overlap the edge of the folding tab. A folding tab such as this may lie over the entire distance extending in folding direction; developing upon this, however, there is also an advantageous solution to the effect that the pocket is formed of two oppositely directed, that is to say towards one another, folding tabs joined to the base. This produces an even more stable solution, to be more precise as a result of the adjoining regions of such folding tabs which are now doubly present at the flap joint end. The maximum path of displacement may also be made shorter step-by-step, in that the flap portion is appropriately prepared for the purpose of changing the length by over-folding. Folds such as these arranged in parallel are previously known per se from the conventional loose-leaf binder. Furthermore, an advantageous feature of the invention consists in a thin edge of the folding tab, facing away from the back, cooperating as counter-stop with the flap portion. A more far-reaching graduation than by means of closely adjoining parallel folds is achieved in that the folding tab is longitudinally divided, with formation of part folding tabs, for the purpose of changing the counter-stop. In other words, the tucked-in folding tab, or both folding tabs tucked in directed towards one another, or an alternating sequence of several folding tabs, provide practically ladder-like counter-stops disposed transverse to the direction of extension, likewise realised from the thin edges, facing away from the back, of such part folding tabs. Furthermore, it is favourable for the base, facing away from the back, to continue into a tuck-in wall entirely or partially overlapping the pocket. This holds the sheets forming the withdrawal limiting device one above the other and, which may be of benefit in certain cases, prevents direct contact of the filed material or papers with the aforesaid means. In addition, binding tongues may be provided on the tuck-in wall etc.
In a multi-compartment folder for papers, an advantageous construction is produced by stacked folders for papers according to one or more of the preceding features in only one direction. As the element joining the individual folders for papers, there serves here also an open through pocket to be overlapped by a flap portion or of flap portions. A particularly advantageous solution in this regard is achieved by a pocket respectively joining, with limited displacement, the base of a first folder for papers and the cover of a second folder for papers, etc. A solution which is even of independent significance is provided in that the pocket is formed from an intermediate blank having the folding tab or respectively, the folding tabs and in that the covers and bases respectively bound to one another by the pocket have the flap portions. This withdrawal limiting device may be realised both by a combined, astraddle-like overlapping of both flap portions at a counter-stop, or else also with use of separate counter-stops, which are provided, as explained, in the case of the construction of part folding tabs. It then proves to be of further advantage for the intermediate blank also to have a tuck-in wall extending beyond its back. This wall may have supporting strips for the lateral supporting of the accommodated filing material.
REFERENCES:
patent: 984482 (1911-02-01), Howell et al.
patent: 2252177 (1941-08-01), Heyer
patent: 4331290 (1982-05-01), Benham
patent: 5797630 (1998-08-01), Conley, Jr.
patent: 5803250 (1998-09-01), Mori
patent: 671229 (1939-02-01), None
patent: 3028799 (1982-03-01), None
patent: 382179 (1923-09-01), None
patent: 0292412 (1988-11-01), None
Farber Martin A.
Henderson Mark
Mappei-Organisationsmittel GmbH
Wellington A. L.
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