Buckles – buttons – clasps – etc. – Paper fastener – Resiliently biased
Patent
1994-12-05
1996-09-17
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Paper fastener
Resiliently biased
24545, 24563, B42F 100, B42F 2100
Patent
active
055556060
DESCRIPTION:
BRIEF SUMMARY
THE PRESENT INVENTION relates to a paper fastener and more particularly to a paper fastener which may be used to hold one sheet of paper or to join together several sheets of paper without penetrating or damaging the paper.
Previously proposed paper fasteners for joining together several sheets of paper without penetrating or damaging the paper have included paper clips formed from a folded length of wire. These conventional paper clips are provided in several different sizes since any one size of, clip is only capable of holding a limited number of sheets of paper within a relatively narrow range. It is often desirable to label bundles of paper, which are held together by means of paper clips and, unless the separate bundles are placed in folders, files or the like there is no simple way of marking the various bundles so that the label or marking is readily visible when several bundles or paper are stacked on top of each other.
One example of a clip, which is intended for use to secure together a bundle of cheques in a cheque book, is shown in U.S. Pat. No. 3,023,474. This document shows an elongate clip having a base and a pair of legs between which a channel is formed. One of the legs is of greater overall dimension than the other so as to project beyond the edges thereof in order to permit mounting of that leg on a cover of a cheque book. Whilst the free edges of one of the arms are bent slightly outwardly, the channel defined by the clip is of substantially cross-section and the insertion of a bundle of cheques into the clip necessitates that the arms be forced apart. This can be an awkward operation to effect whilst simultaneously trying to insert the paper between the arms.
A further design of this type of clip is shown in GB 2206922A. The clip shown in this document is an integrally moulded plastics component. The clip again defines a channel between two arms which are interconnected by an arcuate portion 12. One of the arms has cut-away portions adjacent its ends which serve, to some degree, to facilitate the insertion of paper into the clip. Whilst these cut-away portions have edges which are upturned so as to define "wing portions", again the clip is of substantially constant cross-section over its length and it would still be a relatively awkward task to introduce a bundle of papers into the clip. In addition a separate tab component has to be provided with the clip in order to carry information.
Another document which discloses clips of this general type is French Specification 1527581. This document shows a variety of extrusions of constant cross-section which each have a pair of arms which must be prized apart in order to insert paper therebetween. The designs shown in this Specification again suffer from the disadvantages mentioned above insofar as the need to prize the arms of the clip apart is concerned in order to insert paper therebetween.
It is also known to hold several sheets of paper together by means of a so-called bulldog clip comprising a channel-like member formed of a spring metal, together with a pair of handles which are mounted on the spring metal channel and which are used in order to prize apart the arms of the channel to allow for the insertion of paper. These type of clips comprise three separate components and thus production and assembly of the clips is relatively expensive as compared with conventional paper clips described above. In addition the spring metal forming the main component of the clip is usually very still and inserting papers into the clip is often a difficult and awkward operation, particularly for anyone suffering from a slight weakness of the hands.
The present invention seeks to provide an improved paper fastener which addresses the problems discussed above.
One aspect of this invention provides a paper fastener comprising a generally channel-sectioned component having a base and first and second opposed arms between which an elongate channel is defined, the base of the channel-section having a substantially planar outer surface which provides a regi
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Hi-Tech Industries Limited
Sakran Victor N.
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