FROM METALLBLECH MANUFACTURED STAPLE

Invention concerns of Metallblech made staple, consisting of crosswise of handles abragenden, flat thighs, which intensified to their free end are, whereby to the longitudinal axis of the thigh it shifts the points is arranged and the thighs at that longitudinal fold, from which the point is distant further, with which anchorage of the staple in a material serving before leaps are provided. Such staples are used for the connection by construction units, in particular such, which from different materials, as e.g. get to fiber boards u.dgl, as well as sheet metal are manufactured. They are particularly suitable hiefür, because they are substantially faster and thus more economically into the material enforceable than screws and because it a larger strength against loads, like e.g. Oscillations, when with a smooth surface provided nails ensure. From the US-PS Nr.3645163 a slit nail is become known, which is provided with one the anchorage in the material serving teething. This nail is likewise economically enforceable and its teething ensures one opposite glatzen nails improved retaining strength. Although this nail is flexibly verforrat when driving insoferne, when its both thighs are swivelled to each other and it in its end position flexible released, are, since the thighs proceed from a comparatively rigid nail head and thus close borders are set to the flexible ductility, the spring action attainable for the anchorage comparatively small. From the US-PS RH Nr.22, 758 further a staple is become known, which is out crosswise by a handle abragenden Schenkein formed. With this staple weakening places are intended between the handle and Schenkein, in which when driving the staples into a material a plastic deformation taken place, so that the staple is also embodied to each other in the material in the angle gesprei ten Schenkein, however none caused via the spreading of the thighs flexible anchorage forces arise. The invention is thus the basis the task to create a such staple with which the two thighs are embodyable in the material in optimal way. This is obtained according to invention thereby that the handle is against each other flexibly deformationable by relative motion of the thighs. Preferably the two thighs with the handle are einstückig manufactured in actually well-known way. After a preferential remark example the clearance between the two thighs is at least the double width equal the thigh. The two thighs can be able to do thereby in a cylindrically curved surface preserving more ocler it also in approximated parallel levels to lie to each other, whereby the projection-referred to the longitudinal centre plane of the staple interspersing both thighs - at different edges of the thighs is intended. Thus a staple is creative, which is sufficiently rigid on the one hand that their thighs can penetrate also Metallbleche and with on the other hand when driving in material turning of its thighs the handle are very strongly flexibly deformed against each other, whereby in the end position by the handle on the thighs large spring action are expenditure-practiced, by which the thighs in the material, better than this so far attainable was are embodied and thus on the one hand on the material a strong retaining strength to exercise and on the other hand removing the staple a high resistance oppose. The subject of the invention is below described on the basis the designs more near. Show: Fig.1 a perspective opinion of a first execution form of a according to invention of a staple, which is driven into a workpiece made of wood and metal, Fig.2 and 3 a front view and a plan view of the represented of the staple in Fig.1, Fig.4 a Teflquerschnitt of a second execution form of the staple, which is driven into a workpiece made of wood and metal, whereby is also Schenkein swivelled against each other and in its bolting device position is represented, the Fig.5 to 7 a plan view, a front view and a side view of a staple in accordance with Fig.4, Fig.8 a partial cross section of a third execution form of the staple, which is so driven into a workpiece formed from two materials, as well as the Fig.9 to 11 a side view and a front view in Fig.8 represented staple. Into the Fig.1 to 3 represented staple --10--, which is punched out of sheet metal appropriately, consists of a handle --12--, of that two thighs --14-- with Eindringspitzen--16-- crosswise abragen. The use of thin material makes it possible to be able to drive the staple easily also into a workpiece made of metal. For reasons, which are below still described, are the points --22-- the final parts --16-- the thigh --14-- opposite the longitudinal axes of the thighs --14-- shifted arranged, whereby it at the ends of slants --18 and 20--, which are unequally long, are intended. Shifting the points --22-- opposite the longitudinal axis of the thighs --14-- is require] I, around the thighs when driving the staple --I0-- under buckling of the handle --12-- to spread apart and to obtain thus the desired spring action. Further are the longitudinal folds on the inside --24-- the thigh --14-- with teeth --26, 27-- or others the anchorage serving shapings provide. The point --22-- the thigh --14-- is I0 of the longitudinal fold --24--, which is toothed, continues to remove as of the longitudinal fold --25--. As is shown in Fig.3 in particular, the staple is arc-shaped curved. This training decreases the danger that with workpieces from wood when driving the staple splintering the wood is caused. The workpiece represented in Fig.1 --28--, that of the staple --10-- is filled, consists of one fell trees-hurry --30-- and a metal part --32--. If this staple --I0-- into a workpiece --28-- one drives, cause the longer slants --18--that the thighs --14--, like this in Fig.1 is shown, under flexible deformation of the handle --12-- to be pressed apart. As soon as the staple --10-- into the workpiece, works the spring tension of the handle penetrated --12-- on the thighs --14-- , whereby itself their teeth, --26, 27-- press into the material. This return spring of the thighs --14-- caused in connection with at their inner edges --24-- intended teeth --26, 27-- an optimal bolting device of the staple --10-- with the components --30 and 32-- the workpiece --28--. It is pointed out that the two slants --18 and 20-- with the penetration of metal are particularly important. The slant --20-- extends from the point --22-- to the outside longitudinal fold --25-- and a good support of the point for the penetration into the metal causes. It was stated that a point including an angle of 45° penetrates then well into the metal workpiece, if the short slant with the longitudinal axis includes an angle of for instance 30° and the long slant with the longitudinal axis an angle of for instance 15°. The handle appropriately becomes --12-- by projections/leads --40-- extended, whereby the head of the staple increased and so that the danger is decreased that the staple is pulled in unwanted way into the material. Into the Fig.4 to 7 a second execution form of a staple according to invention is represented. This staple --10a-- points at each thigh --14a-- a long slant --18a-- and a short slant --20a--, those the point --22a-- form, up. This staple points also an increased head --12a-- up, which contributes extraordinarily to hold the wood and prevent it by it, 3s over the head --12a-- to out-step. This execution form is in connection with a laminated construction unit from Hol2schichten --28a and 30a-- as well as Metallblech --32a-- represented. This staple --10a-- works in similar way as into the Fig.1 to 3 represented staple. If the Schinkil --lia-- the Mitallblich --32a-- penetrate, press the long slants --14a--, like this in Fig.4 broken represented is, shear-like apart. If the staple up to a pre-determined depth penetrated, those generally by the plant of the head --12a-- on the highest layer --28a-- is given, spring back the thighs into its origin positions. With these Ausführungsforra is at the slant --18a-- only one tooth --26a, 27a-- with a shoulder --34--, essentially perpendicularly to the longitudinal fold of the thigh and a position between the point extends --22a-- and the head --12a-- takes, intended. The thickness of the 4s of laminated workpiece knows the exact distance of the shoulder --34-- of the head --12a-- determine. It can be appropriate thereby, between the thigh --14a-- and the tooth --26a, 27a-- a slot --38-- to plan and the tooth within the range --36-- to bend. Into the Fig.8 to 11 a further execution form is represented. This staple --10b-- is similar to the staple --10a-- trained with the exception that a longitudinal fold of each thigh --14b-- with so several teeth --26b or 27b-- is provided. Also this staple is hardened, around the thighs --14b-- to give the elasticity that the teeth --26b or 27b-- intervene in the material, e.g. a metal sheet, verriegeind. Nr.343416 further are also with this staple the points --22b-- the final parts of the thighs --14b--, those in the intersection of two slants --18b, 20b-- lie, opposite the longitudinal axis of the thighs --14b-- transferred arranged and is the handle --12b-- more broadly than the thighs --14b-- trained. As follows from the managing remarks, thereby a staple is creative which exhibits worlds due to the elasticity an area of application made possible by the handle.