DE145947C

DE145947C -

Info

Publication number: DE145947C
Application number: DENDAT145947D
Authority: DE
Also published as: FR325513A

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

Vorliegende Erfindung ist eine Verbesserung eines Metallklammerbandes, das aus einer Reihe ausgestanzter, aber noch zusammenhängender Metallklammern besteht, die insbesondere zur Verbindung der Kanten von Kästen aus Pappe oder Holz dienen. Ein solches Klammerband wird in bekannter Weise in eine Metallklammeranschlagmaschine eingeführt, die Klammern werden nacheinanderThe present invention is an improvement to a metal clip band that consists of a Series of punched, but still connected metal clips, in particular serve to connect the edges of boxes made of cardboard or wood. Such a clamp band is in a known manner inserted into a metal staple stopper, the staples are sequentially

ίο vom Band abgetrennt, passend gebogen und in die Kästen eingetrieben. Bei dem vorliegenden Klammerband hat man nur wenig Materialabfall beim Ausstanzen; die Klammern hängen so zusammen, daß sie gegen Abreißen oder Bruch sicher sind. Die einzelnen Klammern des Bandes haben einen scheibenförmigen Mittelteil, von dem nach entgegengesetzten Seiten unter einem spitzen Winkel mit der Längsrichtung des Klammerbandes zwei an den Enden abgeschrägte Schenkel ausgehen. Mit einer oder beiden Spitzen haben die Klammern Verbindung mit dem Mittelteil von Nachbarklammern.ίο separated from the tape, bent to fit and driven into the boxes. With the present clip band, there is little waste of material when punching out; the brackets are related in such a way that they are safe from being torn off or broken. The single ones Brackets of the tape have a disc-shaped central part, from which towards opposite Sides at an acute angle with the longitudinal direction of the clip band, two legs beveled at the ends go out. With one or both tips, the brackets are connected to the middle part of neighboring brackets.

Zweck dieser schrägen Anordnung der Klammern im Bande ist, einerseits zu vermeiden, daß beim Umbiegen der Klammerenden die Biegungslinie mit der Faserrich-■ tung des Metalls zusammenfällt und ein Abbrechen leicht eintritt, andrerseits bei Wahl eines Mittelteildurchmessers etwa von der Breite des Metallbandes und entsprechender Breite der Klammerschenkel den denkbar geringsten Materialabfall zu haben.The purpose of this inclined arrangement of the brackets in the band is, on the one hand, to avoid that when the ends of the staples are bent, the bending line coincides with the fiber direction of the metal and breaks off occurs easily, on the other hand, if a central part diameter is selected, it is roughly the same as the width of the metal band and the corresponding width of the clamp legs the smallest imaginable Having material waste.

Fig. I, 2 und 3 der Zeichnung zeigen verschiedene Ausführungsformen eines solchen Klammerbandes.FIGS. 1, 2 and 3 of the drawing show various embodiments of such a device Clip band.

Nach Fig. ι ist jede Klammer des Bandes mit einem scheibenförmigen Mittelteil 1 versehen, von dem nach entgegengesetzten Seiten zwei an den Enden 3 zugespitzte Schenkel 2 ausgehen, wie an der getrennt dargestellten Klammer ersichtlich ist. Im Klammerbande selbst hängen die Enden 3 noch mit dem Mittelteil 1 der Nachbarklammern fest zusammen, und zwar mit einer der Schrägkanten der Spitzen, während die andere Schrägkante unter stumpfem Winkel gegen den Rand des Mittelteils stößt. Da am' Bande scharfe Ecken und Winkel vermieden sind, so kann es sich nicht in der Maschine 5c festsetzen, andrerseits ist bei diesem Ausführungsbeispiel auch ein Verbiegen der Schenkel wegen ihres festen Zusammenhangs mit dem Mittelteil nicht zu befürchten.According to Fig. Ι each clip of the tape is provided with a disk-shaped central part 1, from which two legs 2 which are pointed at the ends 3 on opposite sides go out, as can be seen from the separately shown brackets. In the brackets even the ends 3 are still firmly connected to the middle part 1 of the neighboring brackets, namely with one of the beveled edges of the tips, while the other Bevelled edge abuts against the edge of the middle part at an obtuse angle. Since sharp corners and angles are avoided on the ribbon are, it cannot get stuck in the machine 5c, on the other hand it is in this exemplary embodiment there is also no need to fear bending of the legs because of their firm connection with the middle part.

Bei der Einführung in die Maschine wird in der letzteren eine Klammer nach der anderen vom Bande abgetrennt, die Schenkel werden rechtwinklig zum Mittelteil abgebogen, durch die Kastenwände getrieben und dann auf der Innenseite der letzteren umgebogen.As it is introduced into the machine, the latter becomes one bracket after another separated from the ribbon, the legs are bent at right angles to the middle part, driven through the box walls and then bent over on the inside of the latter.

Im Klammerbande sind zwei parallele Schenkel benachbarter Klammern durch einen länglichen Ausschnitt getrennt. In diese Ausschnitte kann die bei solchen Maschinen übliche Schubklinke für den schrittweisen Vorschub des Klammerbandes eingreifen, soIn the bracket band are two parallel legs of adjacent brackets through one elongated neckline separated. These are the cut-outs for such machines Engage the usual push pawl for the gradual advance of the staple band, so

Claims

that the advance takes place in the most regular manner. The part of the legs 2 that is still connected with the middle part is separated at a suitable angle to the outer sloping edge for the purpose of forming the tips 3. According to FIG already separated at the middle part of the other neighboring bracket at 3 *. In this case, each clamp only needs to be cut off at one point in the machine. In the embodiment of FIG. 3, the individual brackets are firmly connected by narrow webs 4 extending from the ends and lying in the direction of one inclined edge, which connect to the middle part 1 of the adjacent brackets. When cutting off in the machine after the dotted line x-x, the second beveled edge and the point are completed. In such an embodiment of the clip band similar advantages are achieved as with the embodiment according to FIG. 1, with the exception that according to FIG. 1 the loss of material is slightly less and that no small projections 5 remain on the middle part 1, which are bent down and together must be driven with the legs into the material, whereby this suffers a small weakening. In any case, however, the clips are at an angle to the longitudinal direction of the clip band. To produce such a clip band with an inclined arrangement of the clips, the workpiece in question, that is to say the full metal band, is passed between two rollers provided with the necessary punching tools. If the staples were at right angles to the longitudinal direction of the staple band, a break would occur at the points where the legs are bent at right angles to the middle part for the purpose of driving them into the walls of the box, as well as at the ends where the tips are bent at the Inside the box is done, can easily enter. This inconvenience is countered by the inclined arrangement of the individual brackets. P a ten τ claims:

1. Metal clamp band with a series of contiguous, from a disk-shaped Middle part and two individual brackets extending from this point for connecting box corners, characterized in that the brackets are arranged obliquely to the longitudinal direction of the tape in order to obtain the necessary Break resistance to have as little material waste as possible.

2. Metal clip band according to patent claim 1, characterized in that the adjacent legs (2) of two clamps (1,2) by an elongated, suitable cut-outs are separated from each other for advancing the tape by means of a pusher blade.

3. Metal clip band according to patent claim i, characterized in that both legs (2) of a bracket with the middle part (1) of the neighboring bracket in question have a fixed relationship (Fig. i).

4. Metal clip band according to Patent Claim I, characterized in that only one leg of a bracket is connected to the middle part of the neighboring bracket in question (Fig. 2).

5. metal clip band according to patent claim i, characterized in that Both legs of a bracket are firmly connected to the middle part of the neighboring bracket in question by narrow webs (4, 5) which are in the direction of: a sloping edge of the end of the clamp (Fig. 3)

1 sheet of drawings.