DE4438157C1 - Explosive cutting apparatus - Google Patents
Explosive cutting apparatusInfo
- Publication number
- DE4438157C1 DE4438157C1 DE19944438157 DE4438157A DE4438157C1 DE 4438157 C1 DE4438157 C1 DE 4438157C1 DE 19944438157 DE19944438157 DE 19944438157 DE 4438157 A DE4438157 A DE 4438157A DE 4438157 C1 DE4438157 C1 DE 4438157C1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- cartridge
- active part
- propellant charge
- separating device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D3/00—Particular applications of blasting techniques
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
- B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
- B23D15/145—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure actuated by explosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H39/00—Switching devices actuated by an explosion produced within the device and initiated by an electric current
- H01H39/006—Opening by severing a conductor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
Description
Die Erfindung betrifft eine pyrotechnische Trennvorrichtung gemäß dem Ober begriff des Anspruchs 1.The invention relates to a pyrotechnic separation device according to the Ober Concept of claim 1.
Eine solche Trennvorrichtung ist durch die DE-OS 23 17 930 bekannt. Dort ist gemäß einer zweiten Ausführungsform ein Schnellunterbrecher für hohe Strom starken beschrieben, bei dem zwischen einem als Wirkteil dienenden Amboß und einem zu durchtrennenden Leiter über ein Zwischenteil aus Isoliermaterial ein direkter Körperschluß besteht. Beim Zünden einer Sprengladung wird durch die entstehenden Gase der Wirkteil gegen das Zwischenteil und das Zwischenteil gegen den Leiter gedrückt, wobei der Leiter an Perforationslinien abschert. Bei dieser Vorrichtung wird durch die Gase nur ein statischer Arbeitsdruck ausgeübt; ein Durchtrennen durch Schneiden oder Quetschen von Materialien mit größerer Wandstärke ist nicht möglich.Such a separation device is known from DE-OS 23 17 930. There is according to a second embodiment, a high current breaker strong described, in which between an anvil serving as the active part and a conductor to be cut through an intermediate part made of insulating material direct body closure exists. When detonating an explosive charge, the resulting gases the active part against the intermediate part and the intermediate part pressed against the conductor, the conductor shearing off at perforation lines. At this device is only subjected to a static working pressure by the gases; cutting through by cutting or squeezing larger materials Wall thickness is not possible.
Der Erfindung liegt die Aufgabe zugrunde, eine Trennvorrichtung der eingangs genannten Art so auszubilden, daß es mit ihr möglich ist, Materialien mit größerer Wandstärke zu durchtrennen.The invention has for its object a separation device of the beginning mentioned type so that it is possible to use materials with it to cut through thicker walls.
Diese Aufgabe wird durch die in Anspruch 1 gekennzeichneten Merkmale gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen ge kennzeichnet.This object is achieved by the features characterized in claim 1. Advantageous embodiments of the invention are set out in the subclaims indicates.
Der wesentliche Vorteil der Erfindung besteht darin, daß in dem freifliegenden Wirkteil die aus den Treibgasen erzeugte Energie zwischengespeichert wird, um dann durch Impulsübertragung auf das zu durchtrennende Material einzuwirken, wobei für den Trennvorgang sowohl die gespeicherte Energie wieder abgegeben wird als auch der noch anhaltende Druck der Treibgase den Trennvorgang unter stützt. Dabei sind Krafterhöhungen bis zum fünffachen der beschleunigenden Kraft möglich. Durch diese Wirkungsweise kann der Brennkammerdruck ver hältnismäßig klein gehalten werden und es werden auf das Gehäuse nur kleine Systemdrucke ausgeübt, so daß für die Vorrichtung nur kleine Wandstärken er forderlich sind. Das zu durchtrennende Material wird in passende Bohrungen des Gehäuses eingesetzt, wodurch sich das Material an der Gehäusewand abstützen kann. The main advantage of the invention is that in the free-flying Active part, the energy generated from the propellant gases is temporarily stored in order then act on the material to be cut by transmitting impulses, the stored energy being released again for the separation process as well as the persistent pressure of the propellant gases under the separation process supports. Here, increases in force are up to five times the accelerating Power possible. This mode of operation allows the combustion chamber pressure to be reduced be kept relatively small and only small on the housing System pressure exerted so that he only small wall thicknesses for the device are required. The material to be cut is placed in suitable holes in the Housing used, whereby the material is supported on the housing wall can.
Die Treibladung wird in einer in das Gehäuse eingesetzten Kartusche eingefüllt, wobei die Kartusche mit einem auf das Gehäuse gesetzten Schraubverschluß gehalten ist. Als Treibladung kann z. B. Nitrozellulosepulver in Blättchenform oder auch zweibasiges Pulver verwendet werden. Mit der Vorrichtung kann jedes gängige Material durchtrennt werden. Entsprechend dem zu durchtrennenden Material wird die Vorderkante des Wirkteils geformt und die Art und Menge der Treibladung gewählt. Das Durchtrennen des Materials kann je nach Ausbildung der Vorderkante des Wirkteils und der Art des Materials durch Schneiden, Quet schen oder Stanzen erfolgen. Die Anzündung der Treibladung in der Kartusche kann mit oder ohne Zündelektronik erfolgen. Die interne Anzündung erfolgt entweder direkt durch einen Glühdraht, durch handelsübliche Anzünder oder durch pyrotechnische Zündübertragungsleitungen.The propellant charge is filled into a cartridge inserted in the housing, the cartridge with a screw cap placed on the housing is held. As a propellant charge z. B. nitrocellulose powder in flake form or dibasic powder can also be used. With the device, any common material to be cut. According to the one to be cut The front edge of the knitted part is shaped and the type and amount of material Propellant charge selected. Cutting the material can vary depending on the training the leading edge of the active part and the type of material by cutting, squeezing or punching. The ignition of the propellant charge in the cartridge can be done with or without ignition electronics. The internal ignition takes place either directly through a glow wire, through commercially available lighters or through pyrotechnic ignition transmission lines.
Die Erfindung wird nachstehend an Hand der einzigen Figur der Zeichnung erläutert.The invention is described below with reference to the single figure of the drawing explained.
Bei einer pyrotechnischen Trennvorrichtung 1 besteht ein Gehäuse 2 aus einem Zylinder, in dessen oberes Ende eine Kartusche 3 mit einer Treibladung 4 ein gesetzt ist. Innerhalb des Gehäuses ist ein bewegliches Wirkteil 5 vorhanden, das an seiner Vorderkante 5a eine konkave Ausformung aufweist, die in eine Schneidkante 5b ausläuft. Ein Schraubverschluß 6 hält die Kartusche 3 in dem Gehäuse 2 und dichtet dieses ab. Durch den Schraubverschluß 6 ist ein Kontakt kabel 7 durchgeführt, welches zu einem Glühdraht 8 führt, mit dem die Treib ladung 4 angezündet wird. In Öffnungen 2a und 2b in dem Gehäuse 2 ist als zu durchtrennendes Material eine Stahlstange 9 eingesetzt.In a pyrotechnic separation device 1 , a housing 2 consists of a cylinder, in the upper end of which a cartridge 3 with a propellant charge 4 is inserted. Within the housing there is a movable active part 5 , which has a concave shape on its front edge 5 a, which ends in a cutting edge 5 b. A screw cap 6 holds the cartridge 3 in the housing 2 and seals it. Through the screw cap 6 , a contact cable 7 is performed, which leads to a filament 8 with which the propellant charge 4 is ignited. A steel rod 9 is used as the material to be cut in openings 2 a and 2 b in the housing 2 .
Nach Anzündung der Treibladung 4 über das Kontaktkabel 7 und den Glühdraht 8 speichert das Wirkteil 5 die Energie der entstehenden Treibgase und fliegt dann wie ein Geschoß durch das Gehäuse 2 bis es auf die Stahlstange 9 trifft und diese mit der gespeicherten Energie durchschneidet, wobei der anhaltende Druck der Treibgase den Trennvorgang unterstützt.After ignition of the propellant charge 4 via the contact cable 7 and the glow wire 8, the active part 5 stores the energy of the resulting propellant gases and then flies through the housing 2 like a projectile until it hits the steel rod 9 and cuts it with the stored energy, the sustained Pressure of the propellant gases supports the separation process.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944438157 DE4438157C1 (en) | 1994-10-26 | 1994-10-26 | Explosive cutting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944438157 DE4438157C1 (en) | 1994-10-26 | 1994-10-26 | Explosive cutting apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4438157C1 true DE4438157C1 (en) | 1995-12-07 |
Family
ID=6531685
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19944438157 Expired - Lifetime DE4438157C1 (en) | 1994-10-26 | 1994-10-26 | Explosive cutting apparatus |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4438157C1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999054904A1 (en) * | 1998-04-19 | 1999-10-28 | Trw Automotive Electronics & Components Gmbh & Co. Kg | Device for isolating an electric circuit, especially for high current intensities |
WO2000013832A1 (en) * | 1998-09-02 | 2000-03-16 | Powercut As | Device for cutting/shortening of cables, pipes etc. |
DE29920021U1 (en) * | 1999-11-15 | 2001-05-10 | Weidmüller Interface GmbH & Co, 32760 Detmold | Device for cutting strand-like material |
DE10057931A1 (en) * | 2000-11-22 | 2002-08-29 | Peter Lell | Surgical instrument uses gas pressure produced by combustion of an explosive substance to drive a needle, in particular, in the form of a trocar into a human or animal body |
EP1502683A1 (en) * | 2003-07-29 | 2005-02-02 | Dynamit Nobel AIS GmbH Automotive Ignition Systems | Pyrotechnically driven severing device for severing massive, compact materials |
DE102004023415A1 (en) * | 2003-07-29 | 2005-03-31 | Dynamit Nobel Ais Gmbh Automotive Ignition Systems | Pyrotechnically driven separating device for separating solid, compact materials |
WO2006092231A1 (en) * | 2005-03-02 | 2006-09-08 | Rheinmetall Waffe Munition Gmbh | Ammunition, especially programmable high-calibre ammunition |
US7557688B2 (en) * | 2003-04-30 | 2009-07-07 | Delphi Technologies, Inc. | Housing configuration for a pyromechanical disconnecting device |
DE19732650B4 (en) * | 1997-07-29 | 2010-10-07 | Lell, Andrea | loop isolator |
DE102009037396A1 (en) | 2009-08-13 | 2011-02-24 | Wafios Ag | Pyrotechnically actuated cutting device for adiabatic separation of wires in wire processing machine or system, has ignition device activated after closing inlet valve when piston is provided in upper dead center position |
DE102010015239A1 (en) * | 2010-04-15 | 2011-10-20 | Auto-Kabel Managementgesellschaft Mbh | Circuit breaker for a power line |
FR3024277A1 (en) * | 2014-07-28 | 2016-01-29 | Commissariat Energie Atomique | ELECTRIC DISCHARGE SWITCH |
WO2016083369A1 (en) * | 2014-11-25 | 2016-06-02 | Pilz Gmbh & Co. Kg | Safety switching device for switching on and safely switching off an electrical load |
DE102015225521A1 (en) | 2015-12-17 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching an electrical circuit |
EP3800655A1 (en) | 2019-10-02 | 2021-04-07 | Peter Lell | Quick disconnect switch |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2317930A1 (en) * | 1972-06-26 | 1974-02-21 | France Etat | METHOD AND DEVICE FOR SEPARATING A MECHANICAL PART BY USING THE ENERGY OF AN EXPLOSIVE |
-
1994
- 1994-10-26 DE DE19944438157 patent/DE4438157C1/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2317930A1 (en) * | 1972-06-26 | 1974-02-21 | France Etat | METHOD AND DEVICE FOR SEPARATING A MECHANICAL PART BY USING THE ENERGY OF AN EXPLOSIVE |
Cited By (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19732650B4 (en) * | 1997-07-29 | 2010-10-07 | Lell, Andrea | loop isolator |
US6556119B1 (en) | 1998-04-19 | 2003-04-29 | Trw Automotive Electronics & Components Gmbh & Co. Kg | High current intensity fuse device |
WO1999054904A1 (en) * | 1998-04-19 | 1999-10-28 | Trw Automotive Electronics & Components Gmbh & Co. Kg | Device for isolating an electric circuit, especially for high current intensities |
WO2000013832A1 (en) * | 1998-09-02 | 2000-03-16 | Powercut As | Device for cutting/shortening of cables, pipes etc. |
DE29920021U1 (en) * | 1999-11-15 | 2001-05-10 | Weidmüller Interface GmbH & Co, 32760 Detmold | Device for cutting strand-like material |
DE10057931B4 (en) * | 2000-11-22 | 2007-11-08 | Lell, Peter, Dr.-Ing. | Pyrotechnic surgical instrument (Pyronadel) |
DE10057931A1 (en) * | 2000-11-22 | 2002-08-29 | Peter Lell | Surgical instrument uses gas pressure produced by combustion of an explosive substance to drive a needle, in particular, in the form of a trocar into a human or animal body |
US7557688B2 (en) * | 2003-04-30 | 2009-07-07 | Delphi Technologies, Inc. | Housing configuration for a pyromechanical disconnecting device |
DE102004023415A1 (en) * | 2003-07-29 | 2005-03-31 | Dynamit Nobel Ais Gmbh Automotive Ignition Systems | Pyrotechnically driven separating device for separating solid, compact materials |
EP1502683A1 (en) * | 2003-07-29 | 2005-02-02 | Dynamit Nobel AIS GmbH Automotive Ignition Systems | Pyrotechnically driven severing device for severing massive, compact materials |
US7475625B1 (en) | 2005-03-02 | 2009-01-13 | Rheinmetall Waffe Munition Gmbh | Ammunition, especially programmable large-caliber ammunition |
WO2006092231A1 (en) * | 2005-03-02 | 2006-09-08 | Rheinmetall Waffe Munition Gmbh | Ammunition, especially programmable high-calibre ammunition |
NO337539B1 (en) * | 2005-03-02 | 2016-05-02 | Rheinmetall Waffe Munition Gmbh | Ammunition, especially rough-caliber ammunition |
DE102009037396B4 (en) * | 2009-08-13 | 2012-08-16 | Wafios Ag | Pyrotechnically operated cutting device |
DE102009037396A1 (en) | 2009-08-13 | 2011-02-24 | Wafios Ag | Pyrotechnically actuated cutting device for adiabatic separation of wires in wire processing machine or system, has ignition device activated after closing inlet valve when piston is provided in upper dead center position |
DE102010015239A1 (en) * | 2010-04-15 | 2011-10-20 | Auto-Kabel Managementgesellschaft Mbh | Circuit breaker for a power line |
FR3024277A1 (en) * | 2014-07-28 | 2016-01-29 | Commissariat Energie Atomique | ELECTRIC DISCHARGE SWITCH |
WO2016016195A1 (en) * | 2014-07-28 | 2016-02-04 | Commissariat à l'énergie atomique et aux énergies alternatives | Electric pulse generator |
US9953782B2 (en) | 2014-07-28 | 2018-04-24 | Commissariat A L'energie Atomique E Aux Energies Alternatives | Electric pulse generator |
CN107004539B (en) * | 2014-11-25 | 2019-08-16 | 皮尔茨公司 | For connecting and the safety switching apparatus of safety cut-off electrical load |
WO2016083369A1 (en) * | 2014-11-25 | 2016-06-02 | Pilz Gmbh & Co. Kg | Safety switching device for switching on and safely switching off an electrical load |
US10532714B2 (en) | 2014-11-25 | 2020-01-14 | Pilz Gmbh & Co. Kg | Safety switching device for switching on and safely switching off an electrical load |
CN107004539A (en) * | 2014-11-25 | 2017-08-01 | 皮尔茨公司 | For connecting the safety switching apparatus with safety cut-off electrical load |
WO2017102171A1 (en) | 2015-12-17 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching an electrical circuit |
US10217595B2 (en) | 2015-12-17 | 2019-02-26 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching an electrical circuit |
DE102015225521A1 (en) | 2015-12-17 | 2017-06-22 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching an electrical circuit |
DE102015225521B4 (en) | 2015-12-17 | 2021-11-25 | Bayerische Motoren Werke Aktiengesellschaft | Device for switching an electrical circuit, vehicle with such a device and a method for its operation |
EP3800655A1 (en) | 2019-10-02 | 2021-04-07 | Peter Lell | Quick disconnect switch |
WO2021064160A1 (en) | 2019-10-02 | 2021-04-08 | Peter Lell | Quick-break disconnect switch |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
D1 | Grant (no unexamined application published) patent law 81 | ||
8363 | Opposition against the patent | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: LELL, PETER, DR., 85368 MOOSBURG, DE |
|
8365 | Fully valid after opposition proceedings | ||
8320 | Willingness to grant licenses declared (paragraph 23) | ||
8321 | Willingness to grant licenses paragraph 23 withdrawn | ||
R071 | Expiry of right | ||
R071 | Expiry of right |