EP0499701B1 - Sicherheitsvorrichtung für rohrabgeschossene Projektile - Google Patents

Sicherheitsvorrichtung für rohrabgeschossene Projektile Download PDF

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Publication number
EP0499701B1
EP0499701B1 EP91120861A EP91120861A EP0499701B1 EP 0499701 B1 EP0499701 B1 EP 0499701B1 EP 91120861 A EP91120861 A EP 91120861A EP 91120861 A EP91120861 A EP 91120861A EP 0499701 B1 EP0499701 B1 EP 0499701B1
Authority
EP
European Patent Office
Prior art keywords
sensor
barrel
safety
delay
launch
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
Application number
EP91120861A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0499701A1 (de
Inventor
Norbert Dr. Wardecki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buck Chemisch Technische Werke GmbH and Co
Buck Werke GmbH and Co
Original Assignee
Buck Chemisch Technische Werke GmbH and Co
Buck Werke GmbH and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Buck Chemisch Technische Werke GmbH and Co, Buck Werke GmbH and Co filed Critical Buck Chemisch Technische Werke GmbH and Co
Publication of EP0499701A1 publication Critical patent/EP0499701A1/de
Application granted granted Critical
Publication of EP0499701B1 publication Critical patent/EP0499701B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/24—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein the safety or arming action is effected by inertia means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/005—Combination-type safety mechanisms, i.e. two or more safeties are moved in a predetermined sequence to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C15/00—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges
    • F42C15/28—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids
    • F42C15/31—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids generated by the combustion of a pyrotechnic or explosive charge within the fuze

Definitions

  • the invention relates to a safety device for preventing premature ignition of an active charge to be ignited by a delay piece that can be ignited during firing of a projectile having a projectile jacket and which is fired by a discharge charge from a launch tube, according to the preamble of patent claim 1.
  • a safety device for preventing premature ignition of an active charge to be ignited by a delay piece that can be ignited during firing of a projectile having a projectile jacket and which is fired by a discharge charge from a launch tube, according to the preamble of patent claim 1.
  • Such an arrangement is known from the US -A-4 982 663.
  • the tube sensor is held within the launch tube by its wall in the pressed position, namely its safety position, against the force of the spring acting on the tube sensor. As soon as the projectile leaves the launch tube, this spring presses the tube sensor outwards into its unlocking position. Unlocking is thus carried out mechanically by means of a spring, which understandably entails the risk of susceptibility to failure, for example if the spring breaks or becomes fatigued.
  • the object of the complete invention is to design the known safety device in such a way that, with a simple construction, it ensures reliable unlocking with sufficient safety against the foreline. This object is achieved by the features of patent claim 1.
  • a second pyrotechnic delay element is therefore provided, which moves the tube sensor into its unlocking position by gas pressure after its delay time, thus avoiding a spring susceptible to failure; the first pyrotechnic retarder is independent of this process and can therefore guarantee the safety of the down pipe.
  • the fuse arrangement is accommodated in the base region of the throwing body and represents the connecting link between the discharge charge or a special ignition charge assigned to it and the active charge or a special ignition charge assigned to it.
  • the arrangement has two mutually parallel pyrotechnic delay sets, which extend in the firing direction (arrow A), hereinafter referred to as delay pieces, which are customary in the industry, namely a first delay piece 10 and a second delay piece 11 extends into a channel 13 which extends transversely to the firing direction A.
  • a pipe sensor 14 in the form of a bolt with a retracted shaft is slidably accommodated in the channel 13, the tip 12a of the firing pin 12 resting on the shaft of the pipe sensor in the position shown in FIG. 1, or the firing pin 12 otherwise from the pipe sensor 14 in the starting position is held.
  • a short pipe section 15 extends from the channel 13 in the firing direction A, at the bottom of which there is a central firing cap 16, which is used to ignite the not-shown effective charge of the projectile.
  • the already mentioned second deceleration piece 11 also opens into the channel 13, as well as a channel 17 which also extends in the firing direction A and in which an acceleration sensor 18 slides.
  • the acceleration sensor 18 engages with its tip 18a in a recess 14a in the jacket of the tube sensor 14.
  • the arrangement also has elastic locking rings 19 which serve as catches for the sliding parts of the arrangement, that is to say for the firing pin 12, the pipe sensor 14 and the acceleration sensor 18.
  • Fig. 1 the arrangement is shown in the safety position.
  • the tube sensor 14 lies with its shaft between the firing pin 12 and the percussion cap 16, with which the ignition chain is interrupted by the delay piece 10 for active charging.
  • the tube sensor 14 is secured in this position in two ways, on the one hand by the wall of the launch tube indicated at 20, in which the projectile with its casing 21 is inserted, and on the other hand by the acceleration sensor 18, which has its tip 18a in the recess 14a of the tube sensor 14 engages. If the ejection charge is now ignited via a usually electrical igniter, then there is a sequence as indicated in FIG. 2. This means that the hot gases of the ignition charge set the projectile in motion and at the same time ignite the two delay pieces 10, 11. As soon as the projectile has reached its maximum acceleration, the acceleration sensor 18 moves out of its detent (upwards in FIG.
  • the acceleration sensor 18 is therefore dimensioned so that it only moves into its position releasing the tube sensor 14 when the projectile has reached an acceleration which is sufficient for the projectile to be ballistically shot beyond the zone of the fore-pipe safety. If, despite reaching this acceleration, the projectile is strongly braked by some obstacle within the fore-pipe safety zone after leaving the pipe, then the acceleration sensor 18 moves again in the opposite direction into the pipe sensor 14, who has not yet moved outward, locking position back.
  • the delay time of the delay piece 11 is set so that at the time of its burn-through the - correctly accelerated - projectile has reached the end of the fore-pipe safety zone.
  • the delay time of the delay piece 10 is set to the desired point in time of ignition of the active charge, so that in any case the delay time of the delay piece 10 is longer than that of the delay piece 11. Should the delay time of the delay piece 10 be shorter than that of the delay piece due to a malfunction 11, the ignition chain remains broken and in safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Air Bags (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Elimination Of Static Electricity (AREA)
EP91120861A 1991-02-20 1991-12-04 Sicherheitsvorrichtung für rohrabgeschossene Projektile Expired - Lifetime EP0499701B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4105271A DE4105271C1 (da) 1991-02-20 1991-02-20
DE4105271 1991-02-20

Publications (2)

Publication Number Publication Date
EP0499701A1 EP0499701A1 (de) 1992-08-26
EP0499701B1 true EP0499701B1 (de) 1995-05-17

Family

ID=6425481

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91120861A Expired - Lifetime EP0499701B1 (de) 1991-02-20 1991-12-04 Sicherheitsvorrichtung für rohrabgeschossene Projektile

Country Status (7)

Country Link
US (1) US5159150A (da)
EP (1) EP0499701B1 (da)
JP (1) JP2501705B2 (da)
CA (1) CA2061426C (da)
DE (2) DE4105271C1 (da)
DK (1) DK0499701T3 (da)
NO (1) NO174906C (da)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19651974C1 (de) * 1996-12-13 1998-06-10 Buck Chem Tech Werke Sicherheitsvorrichtung für einen Zünder
DE19926754C2 (de) * 1999-06-11 2001-08-23 Buck Neue Technologien Gmbh Sicherheitseinrichtung für Munition mit einer elektrochemischen Zelle als Energiequelle
US7387156B2 (en) 2005-11-14 2008-06-17 Halliburton Energy Services, Inc. Perforating safety system
DE102011105864A1 (de) * 2011-06-27 2012-12-27 Rheinmetall Waffe Munition Gmbh Sicherheitsvorrichtung
FR2981443B1 (fr) * 2011-10-17 2013-11-29 Sme Generateur de gaz muni d'un organe de securite pour les cas d'echauffements lents

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118062A (en) * 1937-09-21 1938-05-24 David L Woodberry Bore-safe fuse
US2981192A (en) * 1959-06-19 1961-04-25 Andrew J Grandy Extensible bore safety pin
FR1558042A (da) * 1968-03-05 1969-02-21
FR1599284A (da) * 1968-07-05 1970-07-15
FR2280878A1 (fr) * 1974-08-01 1976-02-27 France Etat Relais pyrotechnique de securite temporise
FR2368009A1 (fr) * 1976-10-15 1978-05-12 France Etat Retard pyrotechnique de securite a armement integre
DE3542209A1 (de) * 1985-11-29 1987-06-04 Diehl Gmbh & Co Blindstelleinrichtung eines zuenders
DE3543939A1 (de) * 1985-12-12 1987-06-19 Buck Chem Tech Werke Anordnung zum verhindern einer vorzeitigen zuendung eines geschosses
US4699058A (en) * 1986-05-09 1987-10-13 Interdyne Service Corporation Safing and arming device and method
US4982663A (en) * 1986-05-16 1991-01-08 Aai Corporation Safe-and-arm arrangement and projectile arrangement therewith
US4953475A (en) * 1989-12-07 1990-09-04 The United States Of America As Represented By The Secretary Of The Navy Safety-arming system for launched projectiles

Also Published As

Publication number Publication date
EP0499701A1 (de) 1992-08-26
NO174906B (no) 1994-04-18
NO174906C (no) 1994-07-27
DK0499701T3 (da) 1995-10-09
CA2061426A1 (en) 1992-08-21
DE59105529D1 (de) 1995-06-22
CA2061426C (en) 1996-04-30
DE4105271C1 (da) 1992-07-16
NO920087L (no) 1992-08-21
NO920087D0 (no) 1992-01-07
US5159150A (en) 1992-10-27
JP2501705B2 (ja) 1996-05-29
JPH04317000A (ja) 1992-11-09

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