DE1703945A1 - Bolt-firing device - Google Patents

Description

"Bolt gun" (addendum to patent application P 16 03 857 <»6)

The invention relates to a bolt-firing device according to patent application P 16 03 857o6 for driving Bolts in fixed components and the like Bolt acting striker, which is guided with its shaft in a longitudinally displaceable mouthpiece in the device and with . its rear end into a combustion chamber liner with a short Drive stroke is to be pushed in, with the mouthpiece, which is displaceable against the resistance of a spring, for adaptation the bolt length is used. In the case of the main application P 16 03 857.6, a propellant charge in the rear is used The end of the cartridge charge to be inserted, which is accommodated in the rear part of the combustion chamber sleeve Firing pin of an ignition mechanism provided with a trigger device can be ignited.

In contrast, the present invention provides a further embodiment of the bolt-firing device according to the The main application states that the propellant charge is a solid part UnterIagonJOJit7 §1, Paragraph 2, No.i, Clause 3 deaÄnderunosoe «.v. 4.9.19671

The propellant is used, which is inserted into the anvil head which forms the rear end of the die and is to be pushed into the combustion chamber is and its ignition preferably by compression between an ignition tip, the solid propellant and its Bearing in the air enclosed in the die head takes place.

There are known bolt-firing devices that use a solid propellant to drive the bolt to be driven, which can be inserted into the combustion chamber via a loading window of the device. To close the loading window in The barrel is displaced longitudinally axially until it is attached to the solid propellant with an anvil firmly connected to it is present. The ignition of the propellant takes place here by a mechanical, by the relaxation of a spring resulting impact, which transfers the impact energy required for ignition to a bolt. The one to be collected Bolt is driven like a bullet in one run and shot at the receiving body, what from From the point of view of security is considered disadvantageous. Instead of driving the bolt directly, it is with means a solid propellant to be operated bolt-firing tools also known to use a striker, the driven The striker hits the bolt held in the mouth of the device in a free-flying manner and hits the same in the receiving body drives in. The sudden impact of the flying ones However, anvil compound on the bolt standing on the receiving body means a higher stress on the bolt, which to bolt breakage and thus to the corresponding risk for

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the operation of the device can lead to »Another disadvantage is the incompletely penetrated residual bolt see, which e.g. acts as a hindrance to the laying of cables.

The aforementioned drawbacks that arise in the direct or indirect drive of bolts by means of solid propellant charges, are not in Stud gun according to the present invention available by the known mechanical impact ignition place here in the ignition device, the ER% overheating of trapped air is provided, which structure the of the porous propellant charge is preheated in a time-dependent penetration, as a result of which an improved uniform ignition readiness and penetration performance can be observed in devices where the anvil has to overcome the penetration resistance of the bolt during the ignition process.

In the drawing, two exemplary embodiments of the bolt-firing tools provided according to the invention are shown. It shows m

1 shows a first embodiment in longitudinal section,

. 2 shows a plan view of the bolt-firing tool according to FIG

Fig. 1 with the loading tray open, Fig. 3 shows a cross section through the device at the level of the

Loading bay and

4 shows a second embodiment in axial longitudinal section.

In the tubular device housing 1 is the rotatable and longitudinally adjustable sleeve 2 with the locking piece 3 and the Combustion chamber 4 stored. The closure piece 3 is means

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of the rubber buffer 5 supported against the percussion piston 6, the is in turn supported by the compression spring 7 with a corresponding movement play 8 with respect to the housing base 9. in the The stop piston 6 is in a recess with the ignition stopper stored his head 10, on which the locking piece: 3 supporting compression spring 11 engages. The shaft 12 provided on the ignition head is, for example, sucking into the corresponding one P hole forming air space 13 in the closure piece 3 fitted. The striker mounted in the mouthpiece 14 so as to be longitudinally displaceable 15 has at the rear end of its head 16 a recess or a bearing 17 »in which the over the loading openings 18 and 19 to be introduced solid propellant 20 is used and held there by clamping.

By means of the driving pin 21, the anvil head 16 is pushed into the combustion chamber 4 and then rotated the sleeve 2, the loading opening 18 in the housing tube 1 is closed. ^ The sleeve 2 is shifted by means of the partial thread 22 against the resistance of the spring 23 by the distance 24 and the percussion piston 6 via the locking piece 3 and the rubber buffer by the distance 8 to the rear. When pressing the lierätesmit inserted bolt 21 against the bombardment or Einträbstelle the muzzle piece 14 moves backwards so far that there is a force-fit contact between the firing point, the bolt 21, the striker 15 and dem.Verschlußstück results. As a result of the bolt resistance at the driving point a hammer blow can then be exerted on the piston 6, which compresses the air enclosed on all sides in the bar 13

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and heated so that a close to the ignition point The solid propellant is ready to ignite.

In the embodiment shown in FIG The differential piston 25 »the rear one serves as the ignition stopper Piston part 25 'precompresses the air in front of it and via the slot 26 provided in the closure piece 3 into the between the solid propellant charge 20 and the front one .Piston part 25 ″ lying high pressure chamber 13 ′ presses. the Heated compressed air strikes the solid propellant 20 via the channel or channels 26 Air volume provided for preheating the solid propellant enlarged accordingly.

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BATH

Claims (2)

Claims; 1. Bolt-firing tool for driving bolts into solid components and the like., With a propellant by the gas pressure of a propellant charge, acting on the bolt to be driven, the with its shaft in a longitudinally displaceable in the device Muzzle out and with its rear end in a ^ The combustion chamber liner must be pushed in with a short drive stroke, the mouthpiece, which can be displaced against the resistance of a spring, serves to adjust the length of the bolt, according to Patent ... (patent application P 16 03 857.6), thereby characterized in that a solid propellant charge (20) is used as the propellant charge, which is inserted into the rear end of the anvil forming, in the combustion chamber (4) to be inserted anvil head (16) and its ignition in particular by compressing the between an ignition head (12), the solid propellant (20) and its bearing (17) in the head "(16) trapped air takes place. 2. Bolt-firing tool according to claim 1, characterized in that the ignition head is designed as a differential piston (25), the rear piston part (25 ') of which pre-compresses the air and, via a slot (26) provided in the closure piece (3), into the between the Solid propellant (20) and the front piston part (25 ¹¹ ) lying high pressure chamber presses. ltIn.teriaCj3: ^ (?. ^At; 1 * b <2 ;. No. 1 sentence 3 of the Änderungege · v 9.4.1967..) 209824/0091 Blank page