EP0073333B1 - Switch for projectiles crossing the water surface - Google Patents
Switch for projectiles crossing the water surface Download PDFInfo
- Publication number
- EP0073333B1 EP0073333B1 EP19820106557 EP82106557A EP0073333B1 EP 0073333 B1 EP0073333 B1 EP 0073333B1 EP 19820106557 EP19820106557 EP 19820106557 EP 82106557 A EP82106557 A EP 82106557A EP 0073333 B1 EP0073333 B1 EP 0073333B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switch
- water surface
- projectile
- projectiles
- crossing
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/06—Electric contact parts specially adapted for use with electric fuzes
Definitions
- the invention relates to a switch for an electric projectile detonator, which breaks through the water surface between firing and detonation, a spring-loaded pressure sensor being located on the front side of the projectile shell and opening and closing a contact (GB-A-578258).
- Missile detonators have the task of releasing a warhead or an explosive charge at the target or at a desired time. As a rule, several switches are closed one after the other for ignition, which react to different environmental conditions.
- Switches are known which react to the impact, to the passage of time, to the approach or to a certain distance from the target.
- a projectile with a snap switch operated by back pressure is known from US-A-2 596 171.
- a switch For projectiles that emerge from the water or that are immersed in the water, a switch is desired that registers the reaching of the water surface or falling below a minimum speed.
- the invention has for its object to provide a switch for projectile detonator that changes its switching state when reaching the water surface or falling below a minimum speed.
- a switch according to the invention for underwater projectiles or emerging projectiles is explained with reference to the single figure.
- the figure shows the tip of the projectile 1, the pressure sensor 2, which is loaded with a spring 3, and the electrical contact 4.
- the dynamic pressure 5 on the pressure sensor 2 causes a dynamic force 6 which exceeds the spring force 7.
- the switch remains open. If the speed drops below a limit value or if the projectile emerges from the water, the damming force 6 becomes smaller than the spring force 7.
- the contact 4 is closed and the ignition is thus triggered or initiated if another criterion for the ignition, e.g. B. Expiration of a time delay is used.
- This switch is also used for a projectile that is immersed in the water from the air. However, the ignition is not released when the contact is closed, but when the contact 4 is opened.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Description
Die Erfindung betrifft einen Schalter für einen elektrischen Geschoßzünder eines Projektils, welches zwischen Abschuß und Detonation die Wasseroberfläche durchbricht, wobei sich an der Stirnseite der Projektilhülle ein mit einer Feder belasteter Druckaufnehmer befindet, der einen Kontakt öffnet und schliesst (GB-A-578258).The invention relates to a switch for an electric projectile detonator, which breaks through the water surface between firing and detonation, a spring-loaded pressure sensor being located on the front side of the projectile shell and opening and closing a contact (GB-A-578258).
Schalter für Geschoßzünder haben die Aufgabe, einen Gefechtskopf oder eine Sprengladung im Ziel oder zu einem gewünschten Zeitpunkt freizugeben. In der Regel werden zur Zündung mehrere Schalter nacheinander geschlossen, die auf verschiedene Umgebungsbedingungen reagieren.Missile detonators have the task of releasing a warhead or an explosive charge at the target or at a desired time. As a rule, several switches are closed one after the other for ignition, which react to different environmental conditions.
Bekannt sind Schalter, die auf den Aufschlag, auf Zeitablauf, auf die Annäherung oder auf einer bestimmten Abstand zum Ziel reagieren. Ein Projektil mit einem durch Staudruck betätigten Schnappschalter ist aus US-A-2 596 171 bekannt.Switches are known which react to the impact, to the passage of time, to the approach or to a certain distance from the target. A projectile with a snap switch operated by back pressure is known from US-A-2 596 171.
Für Projektile, die aus dem Wasser auftauchen oder die ins Wasser eintauchen, ist ein Schalter erwünscht, der das Erreichen der Wasseroberfläche oder das Unterschreiten einer Mindestgeschwindigkeit registriert.For projectiles that emerge from the water or that are immersed in the water, a switch is desired that registers the reaching of the water surface or falling below a minimum speed.
Der Erfindung liegt die Aufgabe zugrunde, einen Schalter für Geschoßzünder zu schaffen, der beim Erreichen der Wasseroberfläche oder beim Unterschreiten einer Mindestgeschwindigkeit seinen Schaltzustand ändert.The invention has for its object to provide a switch for projectile detonator that changes its switching state when reaching the water surface or falling below a minimum speed.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Schalter durch die Änderung des Staudrucks bei Geschwindigkeitsänderungen des Projektils unter Wasser und beim Durchstossen der Wasseroberfläche seinen Schaltzustand ändert. Vorteile der Erfindung sind die
- - einfache, billige Bauart
- - sichere Funktion und die
- - Unanfälligkeit gegen Störungen.
- - simple, cheap design
- - Safe function and the
- - Immunity to interference.
Ein erfindungsgemässer Schalter für Unterwasserprojektile oder auftauchende Projektile wird anhand der einzigen Figur erläutert.A switch according to the invention for underwater projectiles or emerging projectiles is explained with reference to the single figure.
Die Figur zeigt die Spitze des Projektils 1, den Druckaufnehmer 2, der mit einer Feder 3 belastet ist und den elektrischen Kontakt 4.The figure shows the tip of the projectile 1, the pressure sensor 2, which is loaded with a
Sicherungssysteme, die zur Erreichung der Rohrsicherheit und der Vorrohrsicherheit notwendig sind, sind nicht Gegenstände dieser Erfindung und nicht in die Zeichnung mitaufgenommen.Security systems that are necessary to achieve pipe safety and down pipe safety are not the subject of this invention and are not included in the drawing.
Wird das Projektil unter Wasser abgeschossen und bewegt es sich mit ausreichender Geschwindigkeit. so bewirkt der Staudruck 5 auf dem Druckaufnehmer 2 eine Staukraft 6, die die Federkraft 7 übersteigt. Der Schalter bleibt offen. Sinkt die Geschwindigkeit unter einen Grenzwert oder taucht das Projektil aus dem Wasser auf, so wird die Staukraft 6 kleiner als die Federkraft 7. Der Kontakt 4 wird geschlossen und damit die Zündung ausgelöst oder eingeleitet, falls zur Zündung noch ein weiteres Kriterium z. B. Ablauf einer Zeitverzögerung verwendet wird.If the projectile is launched under water, it moves at a sufficient speed. the dynamic pressure 5 on the pressure sensor 2 causes a dynamic force 6 which exceeds the spring force 7. The switch remains open. If the speed drops below a limit value or if the projectile emerges from the water, the damming force 6 becomes smaller than the spring force 7. The contact 4 is closed and the ignition is thus triggered or initiated if another criterion for the ignition, e.g. B. Expiration of a time delay is used.
Dieser Schalter findet auch bei einem Projektil Verwendung, welches von der Luft ins Wasser taucht. Allerdings erfolgt die Freigabe der Zündung dann nicht beim Schliessen, sondern beim Öffnen des Kontakts 4.This switch is also used for a projectile that is immersed in the water from the air. However, the ignition is not released when the contact is closed, but when the contact 4 is opened.
Claims (1)
- Switch for an electrical fuse of a projectile adapted to break through a water surface between firing and detonation, with a spring-loaded (3) pressure receiver (2) at the frontal end of the projectile casing (1), the pressure receiver (2) opening or closing a contact (4), characterized in that the switch is changing his position by the change of the ram pressure on changes of speed of the projectile under water and on passing through the water surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3133364 | 1981-08-22 | ||
| DE19813133364 DE3133364A1 (en) | 1981-08-22 | 1981-08-22 | "DAM PRESSURE IGNITION" |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0073333A2 EP0073333A2 (en) | 1983-03-09 |
| EP0073333A3 EP0073333A3 (en) | 1983-06-29 |
| EP0073333B1 true EP0073333B1 (en) | 1985-03-13 |
Family
ID=6139956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19820106557 Expired EP0073333B1 (en) | 1981-08-22 | 1982-07-21 | Switch for projectiles crossing the water surface |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0073333B1 (en) |
| DE (1) | DE3133364A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3403349A1 (en) * | 1984-02-01 | 1985-08-01 | Diehl GmbH & Co, 8500 Nürnberg | Detonation signal transmitter |
| DE3414841A1 (en) * | 1984-04-19 | 1985-10-24 | Diehl GmbH & Co, 8500 Nürnberg | IGNITION RELEASE DEVICE |
| DE3625793A1 (en) * | 1986-07-30 | 1991-07-18 | Diehl Gmbh & Co | Detonation system for underwater projectile - is actuated by hydrodynamic pressure acting on piston in projectile nose |
| DE3637899C1 (en) * | 1986-11-06 | 1991-02-21 | Diehl Gmbh & Co | Projectile launched from submarine - has emergence detectors spaced along length to fire rocket when it emerges from water |
| DE3713414A1 (en) * | 1987-04-22 | 1988-11-10 | Diehl Gmbh & Co | Fuze for an underwater projectile |
| DE3715903C1 (en) * | 1987-05-13 | 1993-10-21 | Diehl Gmbh & Co | Ignition device for an underwater projectile |
| DE3731447A1 (en) * | 1987-09-18 | 1989-04-06 | Junghans Gmbh Geb | IGNITION RELEASE DEVICE |
| DE4021319A1 (en) * | 1990-07-04 | 1992-01-16 | Diehl Gmbh & Co | SAFETY DEVICE FOR A RELEASE DEVICE PROVIDED FOR RELEASING A SWITCHING FUNCTION AT A PARTICULAR HYDROSTATIC PRESSURE |
| DE4326737C1 (en) * | 1993-08-09 | 1994-03-31 | Deutsche Aerospace | Electrical release mechanism with piston - has piston-rod guide narrowed by bead which is expanded by ramp on rod to allow extension or retraction |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB578258A (en) * | 1932-02-12 | 1946-05-07 | Russell Purves | Improvements in or relating to apparatus for use in water |
| US2961960A (en) * | 1949-07-20 | 1960-11-29 | Norris Bob | Torpedo exploder mechanism |
| US2596171A (en) * | 1949-08-03 | 1952-05-13 | Us Army | Pressure switch for fuses |
| US2961507A (en) * | 1950-02-28 | 1960-11-22 | Paul M Higgs | Switch |
| US2827850A (en) * | 1952-05-12 | 1958-03-25 | Jr David S Muzzey | Hydrostatically controlled arming switch |
| US2837026A (en) * | 1953-03-18 | 1958-06-03 | Burg Solomon | Depth charge firing control mechanism |
| US3038973A (en) * | 1961-02-06 | 1962-06-12 | Alpert Louis | Impact switch |
| US3601057A (en) * | 1969-02-11 | 1971-08-24 | Gibbs Mfg And Research Corp | Arming switch |
-
1981
- 1981-08-22 DE DE19813133364 patent/DE3133364A1/en active Granted
-
1982
- 1982-07-21 EP EP19820106557 patent/EP0073333B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0073333A2 (en) | 1983-03-09 |
| DE3133364A1 (en) | 1983-03-10 |
| DE3133364C2 (en) | 1987-12-23 |
| EP0073333A3 (en) | 1983-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102007054777B3 (en) | Safety device for an igniter | |
| EP0073333B1 (en) | Switch for projectiles crossing the water surface | |
| DE102007060567A1 (en) | Safety device for an igniter of a projectile | |
| DE3740967A1 (en) | PYROTECHNICAL IGNITION FOR BULLETS | |
| EP0435083A2 (en) | Adjustable stand-off member on a warhead with a hollow charge switchable between penetration and side operation | |
| EP0162335B1 (en) | Fuse safety-device | |
| AT130321B (en) | Projectile fuze for impact and inertial effects. | |
| EP0318996B1 (en) | Pyrotechnical initiator for projectiles, rockets, bomblets and mines | |
| EP0318997B1 (en) | Safety device for a pyrotechnical self-destruction fuze for use with bomblets | |
| WO2009121467A1 (en) | Sabot projectile | |
| DE2541830C2 (en) | Electric percussion fuse | |
| CH696892A5 (en) | Projectile fuze. | |
| EP0499701B1 (en) | Safety device for barrel launched projectiles | |
| DE443189C (en) | Floor with retractable and disengageable delay | |
| DE3141333C2 (en) | Impact fuse | |
| DE2655886A1 (en) | ELECTRIC IGNITER FOR BULLETS | |
| DE2310194C2 (en) | Pedal lighter | |
| DE3443331C2 (en) | Safety device for warhead detonators | |
| CH545957A (en) | Time fuzed stickless hand grenade - with safety shutter including part of powder train and double locking system | |
| DE2727856C2 (en) | Rain protection device for a tip impact fuse for projectiles | |
| DE10001886B4 (en) | From a gun fireable bullet with an acted upon by propellant gases, acting on a detonator activating device transmission element | |
| DE3342284C2 (en) | Internal contact hood | |
| DE10018489C2 (en) | Projectile that can be fired from a barrel weapon | |
| EP1087202B1 (en) | Armour perforating ammunition | |
| DE224371C (en) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Designated state(s): FR GB IT |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Designated state(s): FR GB IT |
|
| 17P | Request for examination filed |
Effective date: 19830718 |
|
| ITF | It: translation for a ep patent filed |
Owner name: JACOBACCI & PERANI S.P.A. |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Designated state(s): FR GB IT |
|
| ET | Fr: translation filed | ||
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19900629 Year of fee payment: 9 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19900716 Year of fee payment: 9 |
|
| ITTA | It: last paid annual fee | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19910721 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19920331 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |