US3249051A - Self-destroying fuze for rotating projectiles - Google Patents

Self-destroying fuze for rotating projectiles Download PDF

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Publication number
US3249051A
US3249051A US409395A US40939564A US3249051A US 3249051 A US3249051 A US 3249051A US 409395 A US409395 A US 409395A US 40939564 A US40939564 A US 40939564A US 3249051 A US3249051 A US 3249051A
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US
United States
Prior art keywords
self
destroying
fuze
centrifugal
sleeve
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
US409395A
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English (en)
Inventor
Paul Kaiser
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.)
Gebr Junghans AG
Original Assignee
Gebr Junghans AG
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 Gebr Junghans AG filed Critical Gebr Junghans AG
Application granted granted Critical
Publication of US3249051A publication Critical patent/US3249051A/en
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
    • F42C9/00—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition
    • F42C9/14—Double fuzes; Multiple fuzes
    • F42C9/16—Double fuzes; Multiple fuzes for self-destruction of ammunition
    • 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
    • F42C15/20—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin
    • F42C15/22—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a securing-pin or latch is removed to arm the fuze, e.g. removed from the firing-pin using centrifugal force

Definitions

  • the invention relates to self-destroying fuze for rotating projectiles with head firing pin bolt which is locked by a centrifugal spiral band and released by a selfdestroying device.
  • Such fuzes are intended for firing at targets in the air. If the target is missed, they should destroy themselves so that they no damage when striking the ground at the end of their trajectory. This is particularly important when shooting in practice areas where it cannot always be guaranteed that there is no trafiic in the hinterland.
  • the object of the invention is to ensure the operation of the self-destroying fuze under all circumstances.
  • the aim of the invention is therefore to provide two self-destroying devices operating absolutely independently of each other and each acting on its own firing pin in the new self-destroying fuzes for rotating projectiles with head firing pin bolt which is locked by a centrifugal spiral band and released by a self-destroying device.
  • the two self-destroying devices are arranged one behind the other and their centrifugal spiral bands are located one on each side of an intermediate bottom or partition of a sleeve of H-shaped cross-section, which has an external screw thread on its periphery by means of which the fuze cap and fuze body are held together.
  • the rear selfdestroying device comprises a striker sleeve surrounding the firing pin shank and accommodates a striker pin, said sleeve having an outer flange which engages behind the centrifugal segment of is centrifugal spiral band locking device and an extension at its rear end tapering to a point and serving as firing pin.
  • Each of the two selfdestroying mechanisms with its identical parts is mounted one on each of two identical plates which are each fixed on an inner shoulder in the fuze bore.
  • the fuze has an axial two-part firing bolt.
  • the front part a carries an impact head 10 and bears against the rear part 10b which carries at its rear end the striker pin.
  • the striker pin shank 10b has at its front end a rigid collar 10c.
  • This is followed by a centrifugal segment 13 mounted in a transverse slot in a sleeve 11 which serves as core for a centrifugal band spiral 12 locking the centrifugal segment 13.
  • the centrifugal segment has, in known manner, a circular segment-shaped notch in which the concave rear side of the sleeve 14 engages.
  • the firing bolt is surrounded by a hammer sleeve 18 loaded by a percussion spring 19.
  • the hammer sleeve 18 together with its percussion spring is held under tension by the release lever 17 which in turn is locked by the centrifugal lever 15 of the selfdestroying device. In locking position this lever is loaded by a torsion spring 16 and prevented from swinging inwards by a deforming safety member not shown.
  • striker sleeve 28 surrounding the rear part 10b of the pin shank and terminates at its rear end in a neck which is tapered to a point and forms a striker 21.
  • the striker spring 29 is located in the interior of the striker sleeve.
  • the striker sleeve 28 and the striker spring are held tensioned by the same means as in the front self-destroying device, namely by a releasing lever 17', self-destroying centrifugal lever 15', torsion spring 16 and deforming safety member.
  • the locking is effected by a centrifugal spiral band 22 which is wound around a core sleeve 24 and locks a centrifugal segment 23 which is located in atransverse slot in the core sleeve 24 and engages behlIld an outer flange on the striker sleeve 28.
  • the construction of the rear self-destroying device, with the exception of the striker sleeve 28, is identical with the front self-destroying device.
  • the releasing mechanisms of the two self-detonating devices are mounted on two identical plates Z and Z which are fixed on inner shoulders in the fuze bore.
  • Both centrifugal band spirals with their cores are located in a sleeve H of H-shaped cross-section one on each side of an intermediate bottom or partition and provided with an external screw thread serving at the same time for holding together the fuze body and fuze cap.
  • the manner in which the two self-destroying devices operate is known and therefore need not be described.
  • the two devices operate entirely independently of each other so that it can be assumed with certainty that at least one destroying impulse will be successful.
  • Self-destroying fuze for rotating projectiles with head striking bolt which is locked by a centrifugal spiral band and released by a self-destroying mechanism, comprising two-self-destroying devices operating absolutely independently of each other, each of which acts on its own striker pin, the two self-destroying devices being arranged one behind the other and each having a centrifugal band, located one on each side of the intermediate bottom of a sleeve of H-shape in cross-section provided with an external screw thread by means of which it holds together the fuze cap and fuze body.
  • a centrifugal segment and a striker sleeve are provided with the sleeve surrounding a striker pin shank and en closing a striker spring, said sleeve having a flange on its outer side which engages behind the centrifugal seg ment of its centrifugal spiral locking device and has at its rear end a tapered and pointed extension forming a striker.
  • Self-destroying fuze according to claim 1, in which two identical plates are provided with the self-destroying devices with their identical parts being mounted each on an identical plate, each of the two plates being fixed on an inner shoulder in the bore of the fuze.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Emergency Lowering Means (AREA)
  • Toys (AREA)
US409395A 1963-11-12 1964-11-06 Self-destroying fuze for rotating projectiles Expired - Lifetime US3249051A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEJ24733A DE1225518B (de) 1963-11-12 1963-11-12 Drallgeschosszerlegerzuender

Publications (1)

Publication Number Publication Date
US3249051A true US3249051A (en) 1966-05-03

Family

ID=7201932

Family Applications (1)

Application Number Title Priority Date Filing Date
US409395A Expired - Lifetime US3249051A (en) 1963-11-12 1964-11-06 Self-destroying fuze for rotating projectiles

Country Status (3)

Country Link
US (1) US3249051A (de)
CH (1) CH416386A (de)
DE (1) DE1225518B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376815A (en) * 1965-09-09 1968-04-09 Pelszynski John Pineapple mine
US3585935A (en) * 1967-06-09 1971-06-22 Brevets Aero Mecaniques Percussion fuse
US4938139A (en) * 1987-11-20 1990-07-03 Dynamit Nobel Aktiengesellschaft After-firing safety device in a projectile with percussion fuze

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1311081A (en) * 1919-07-22 Planograph co
US2805623A (en) * 1951-09-07 1957-09-10 Raymond H Blair Tail fuze for an ordnance missile
US3112704A (en) * 1960-12-23 1963-12-03 Rheinmetall Gmbh Self-destroying fuze for a spinning projectile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1311081A (en) * 1919-07-22 Planograph co
US2805623A (en) * 1951-09-07 1957-09-10 Raymond H Blair Tail fuze for an ordnance missile
US3112704A (en) * 1960-12-23 1963-12-03 Rheinmetall Gmbh Self-destroying fuze for a spinning projectile

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3376815A (en) * 1965-09-09 1968-04-09 Pelszynski John Pineapple mine
US3585935A (en) * 1967-06-09 1971-06-22 Brevets Aero Mecaniques Percussion fuse
US4938139A (en) * 1987-11-20 1990-07-03 Dynamit Nobel Aktiengesellschaft After-firing safety device in a projectile with percussion fuze

Also Published As

Publication number Publication date
CH416386A (de) 1966-06-30
DE1225518B (de) 1966-09-22

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