DE2042768A1 - Magazine loaded with nails - Google Patents

Description

DR BERQ DI PL.-1NIG. STAPF

PATENTANWÄLTE 8 MÜNOHEN a, HILBLE8TRA38E 2O

Attorney's file 19 956 Munich, August 28, 1970

HILTI AKTIENGESELLSCHAFT in Schaan (Principality of Liechtenstein)

Magazine loaded with nails

The invention relates to a magazine equipped with nails for powder-powered setting tools »whereby the nails are driven forward by means of a high-tension gas Pistons are driven, in particular for use in a setting tool (according to patent application).

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It is known that with powder-powered setting tools the introduction of the nails requires a great deal of time. Therefore, in addition to the cartridge magazine, there is also a The aim is to store the nails in magazines.

In the case of shooting devices, the magazining of entire nail-cartridge units is known in particular. Mostly these are Units arranged in drum-shaped or cuboid-shaped magazines, with feed members attached to the device or magazine the nail-cartridge units are fed to the device barrel will.

This principle cannot be transferred to piston devices, because with these, nails and cartridges are separated, in front of and behind the plunger into the device. Before inserting a new nail, the piston must also be in its starting position be pushed back before the new nail can be inserted into the barrel.

To solve these problems occurring with piston devices, piston devices have become known in which the nails be arranged in drum-shaped or cuboid-shaped magazines that are rotatably or displaceably mounted in front of the device. However, the weight of such magazines makes the device very top-heavy and therefore unmanageable.

In addition, belt-type devices are also used in Koiben devices Magazine strips made of plastic known, which are fed to the device by means of zahnradformigeη rotors or chains and held during the driving process. On the one hand, the rotors protruding above the device have an effect inaccessible places and on the other hand e3 is uninteresting, as an additional element a loose Having to use chain. Furthermore, in the

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like belts, which consist of connected plastic sleeves, only hold long nails. With too short Sufficient guidance is no longer guaranteed in such sleeves with nails.

The invention is based on the object of providing a magazine that can be produced economically while avoiding the above-mentioned To create disadvantages.

According to the invention, the object is achieved in that the Magazine is designed as a flat strip of tape, the material and thickness of which are selected so that the tape strip can be punched through by the force of the powder-powered piston in front of the nail head.

Any nails can be used in such a band-shaped strip, which can be produced with the simplest of means hold any length. During the driving process, the material of the magazine tape surrounding the nail shaft is punched out, where the punched-out part serves as a rondelle. Since the piston is punched through the punched out in the magazine band when the nail is completely driven in Hole has to pass through, the nail head serving as a punching tool is slightly larger in diameter than the piston shaft diameter held to allow a resistance-free withdrawal of the piston in its starting position.

For weight reasons and good processing properties, the magazine tape is preferably made of an aluminum alloy manufactured.

In order to achieve a perfect punching effect also in the area of the channel widening serving to feed the nails the magazine tape is based on a further proposal of the invention

speaking partially broken in the projection surface of the nail head. ₂ 09810/0926

\ forteilhafterweisG are the side edges of the magazine with Provided locking openings for the engagement of the feed movement causing parts.

The invention will now be explained in more detail with reference to the drawings showing them for example, and although show:

1 shows a device, partially in section, with the magazine inserted;

FIG. 2 shows the front part of the device of FIG. 1 with the magazine not inserted in a perspective and partially sectioned illustration.

A device designated as a whole by 1 can be seen from FIG. By means of a trigger device 3 contained in a handle 2, a firing pin 4 can be actuated in a manner known per se, which can be acted upon on a cartridge 6 mounted in a cartridge store 5. Due to the powder gases released when the cartridge 6 is ignited, a piston, which is axially displaceable in a part 7a of the barrel bore designated as a whole and in a piston guide 8 and is generally designated as 9, is driven in the direction of the firing material 11. Once the driving process is complete, the piston shaft 9c is in the front area of the base plate la, the piston guide 8 is pushed forward against the tension of a spring 14 in the direction of the firing material 11 by means of the hand grip 12 and then completely slipped over the piston head 9a provided with friction elements 13. The tension force of the spring causes the piston guide 8 together with the piston 9, which forms a frictional connection with the piston guide 8.

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2042763 - he -

has, transported back into the starting position shown in Figure 1.

Furthermore, FIG. 1 shows how a channel 15 equipped with nails 16 in a channel 15 arranged perpendicular to the barrel bore 7, a total of 17 designated magazine tape is inserted. From the introductory page Ib of the magazine cover 17 As far as the barrel bore 7, the channel 15 is widened in accordance with the shape and length of the nails 16, as FIG. 2 also shows. _

In the magazine belt 17, as can be seen from FIG. 2, two symmetrically arranged, Openings 17a lying in the projection surface of the nail head 16a are present Lateral edges of the magazine tape 17 locking openings 17b introduced which are known to the fingertip and therefore not further drawn, the feed of the Mqg azlnbandes acting parts serve.

When the driving-in process is triggered, the advancing piston 9 drives one of the nails 16 against the firing material 11, with the nail being guided on the one hand by the interaction of the projection 16b with the recess 9b and on the other hand in the magazine bar 17 in the exact driving-in phase. As soon as the nail begins to penetrate the firing material 11, the guide in the magazine belt 17 becomes superfluous. When the nail penetrates further into the firing material 11, the part of the magazine tape 17 surrounding the nail shaft 16c is punched out by the nail head 16a. Since the diameter of the nail head 16a is larger than the diameter of the piston shaft 9c, the piston shaft 9c can pass through the hole formed in the magazine 17 without resistance. The punched-out part of the hinge serves as a rondelle during the further driving process. Since thus the resulting hole

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20427G3

has a larger diameter than the piston shaft 9c, After the driving process, it can easily be returned to the starting position in the manner described above be withdrawn. The openings 17a in the magazine belt 17 enable complete punching out, since there is nothing necessary for the punching effect in the area of the channel widening 15a provided for the nail feed Counter-holding material is available.

fc In order to be able to use the magazine tape 17 on both sides, openings 17a are provided on both sides of the nail shaft 3 16 c.

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Claims (4)

2042763 claims 1) Magazine equipped with nails for powder-powered setting tools, whereby the nails are clamped by means of a Gases driven piston are driven, in particular for use in a setting tool according to patent application, thereby identified * indicates that the magazine (17) is a flat strip of tape is formed, the material and tape thickness are chosen so that the tape strip by the force of the powder-powered piston (9) from the nail head (16a) can be punched through. 2) nail magazine according to claim 1, characterized in that the magazine strip (17) made of an aluminum alloy consists. 3) nail magazine according to claim 1, characterized in that that the magazine tape (17) in the projection area of the Nail head (16a) is partially perforated. 4) nail magazine according to one or more of the preceding claims, characterized in that the Lateral edges of the magazine (17) have locking openings (17b) for the magazine advance. 209810/0926 Blank page