Pocket clip for writing instruments

Buckles – buttons – clasps – etc. – Article holder attachable to apparel or body – Pencil

Patent

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Details

24 11CC, 24 11M, B43K 2500

Patent

active

047979828

DESCRIPTION:

BRIEF SUMMARY
The invention relates to a pocket clip for writing instruments, such as ball-point pens, fountain pen caps, push-button or turning automatic pencils and the like, having an elongated facing which is disposed on an elongated, resilient tongue of a clasp made of spring-elastic strip material. In such a pocket clip, the facing stamped from thin metal strip material has narrow marginal flanges formed on the lateral margins of its substantially planar elongated web area and bent backwardly toward the writing instrument, from each of which at least one holding bead extending over a portion of the length of the marginal flange is formed and bent toward the other holding bead, while the free space between the back of the web and the sides of the bead facing it is made approximately equal to or only slightly greater than the material thickness of the resilient tongue of the clasp and the width of the facing is made slightly less than the free width between the flanges of the facing so that the tongue can be inserted with its free end first into the space between the back of the web section and the flanges.
The clasps of pocket clips for writing instruments of the kind described above are fastened at their upper end to the writing instrument casing, while their bottom end, provided with an integral or separately attached clamping point is urged under bias against the writing instrument casing. When the writing instrument is inserted into the pocket of an article of clothing with resilient expansion of the free facing end such that the actual writing instrument lies substantially inside of the pocket but the facing lies on the outside of the pocket, the writing instrument is secured against accidentally falling out of the pocket by the clasp gripping the material of the pocket between the writing instrument casing and the deflected clamping point, while at the same time deliberate removal is possible.
In addition to the integral manufacture of the entire pocket clip from spring-elastic metal strip material, pocket clips of the kind described above are known (FR-A No. 923 580) in which the pocket clip and its clasp are made separately and then joined together. This makes it possible to manufacture the visible part, or facing, in a form and from a material chosen only for its attractive appearance, while the bias of the clip, which is essential to the gripping function, is obtained by making the clasp, which in the assembled state is not visible, from a spring-elastic metal strip material. The joining of the facing to the tongue of the clasp has been performed heretofore by riveting or crimping the parts; in other words, a permanent deformation of the rivets or of sections of the material of one or both of the parts to be joined together serves to produce a positive fastening.
The invention is addressed to the problem of creating a two-piece pocket clip composed of a clasp and a separately made facing, in which the two parts are joined together more simply and quickly, and especially without permanent material deformation.
Setting out from a pocket clip of the kind described above, this problem is solved according to the invention by the fact that the facing has in the area of its upper end that is to be fastened to the writing instrument two tabs formed on the marginal flanges and bent to a position in which their free ends are pointing toward one another. When the tongue is inserted, the tongue is first guided with resilient deformation past the tabs and under the beads. Then, as soon as the tongue has been pushed into the proper fastening position, it snaps behind the tabs into engagement with the surface of the web of the facing. The tabs thus secure the tongue against withdrawal from the facing.
In an advantageous further development of the invention an additional fastening of the facing and tongue can be achieved by making the width of the bead such that a narrow, slot-like interstice remains between its free edges, and the tongue has at least one projection which, in the proper fastening position, protrudes abov

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patent: 3576053 (1971-04-01), Chiang

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