DE1956332U - U-SHAPED CURVED STAPLES. - Google Patents

Description

RA.660 59 ^ * 12/16/66

PATENT LAWYERS H.LEINWEBER dipl-ing. H. ZIMMERMANN

Postal check account: Bank account: Telephone Tel.-Adr.

MUnehen 22045 Dresdner Bank AG. Munich (0811) 261989 leinpat Munich

Munich 2, Marienplatz, account no. 92790

8 MUnehen 2, Rosental 7, 2nd exercise. (Kustermann Passage)

December 16, 1966 ELASTIG GMBH., Frankfurt / Main

U-shaped bent staple

The furnace concerns a U-shaped bent staple made of wire. Are the staples made of thin wire, then the staples are cut across the wire in the Hegel and shaped; If thicker wire is being processed, it is common practice to sharpen the ends of the legs by cutting. Such staples with sharpened leg ends can be easily driven into the material to be stapled, when opening the bent staple, however, you can easily injure yourself on the sharpened leg ends, especially since the wire cross-section customary up to now requires relatively large forces to be bent open by hand.

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The innovation has -ϋζητ task to avoid the mentioned laughing parts. The furnace consists in that the wire from which the staple is made is a flat wire and that the two bevels of the leg ends are symmetrical to the longitudinal axis and merge into an arc. line such staples can be easily inserted and bent flat even in thicker material to be stapled. The staple can easily be bent open again by hand and used for re-closing without the risk of injury.

Particularly good results are achieved when the The width of the flat wire is 5-4 mm, preferably 3.5 mm, and the thickness 0.3-0.5 mm, preferably 0.4 mm.

For a good introduction of the staple into the material to be stapled, it is sufficient that the bevels at the ends of the legs Form an angle of 20-22, preferably 21 °, to the longitudinal axis. : \ -:

In the drawing, an embodiment of the control is shown in two views.

The staple consists of a flat wire and has the following dimensions. The width B of the flat wire is

3.5 mm, the thickness D 0.4 mm, the length L of the legs 16.5 mm, the width W of the staple 11.2 mm.

The ends of the legs are pointed by bevels 1, which is an angle 4 τοη 21 ° to the longitudinal axis 2 form the thigh. The two bevels of each leg go over an arc J into one another, which has a radius R τοη has 1 mm. .

The deviations mentioned above are kept within limits Measurements are possible if necessary without impairing the desired advantages.

It is essential that the ends of the legs are punched are formed.

Staples according to the firing can, as already known with other staples, be joined together to form bars, which can be used in staplers.

The staple according to the innovation persists best instead of flat wire from a cut and brass-colored painted metal band.

Claims (5)

BA.660 59HS.1266 Seh u t ζ a η s ρ r ü e he: 1. F-shaped bent wire staple with sharpened points Legs end, characterized in that the wire is a flat wire and that the two bevels (1) of the Leg ends symmetrical to the longitudinal axis C2) and merge into an arc (3). 2. staple according to claim 1, characterized in that the width (B) of the flat wire 3 ■ - 4 mnL, gate preferably 3.5 now, and the thickness (D) 0.3 - 0.5 mm, preferably 0.4 mm, /be. 3. staple according to claim T, characterized in that that the bevels (1) have an angle a of 20 - 22, gate pull 0 (2.) way of 21, to the longitudinal axis / form. 4. staple according to one of claims T to 3, characterized in that the ends of the legs are stamped are shaped. 5. staple according to one of the preceding claims consisting of a cut and painted brass color Tape.