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US2806427A - Projectile fuse - Google Patents

Projectile fuse Download PDF

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Publication number
US2806427A
US2806427A US363044A US36304453A US2806427A US 2806427 A US2806427 A US 2806427A US 363044 A US363044 A US 363044A US 36304453 A US36304453 A US 36304453A US 2806427 A US2806427 A US 2806427A
Authority
US
United States
Prior art keywords
fuse
projectile
pin
detonator
rotor
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
US363044A
Other languages
English (en)
Inventor
Hager August
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.)
Rheinmetall Air Defence AG
Original Assignee
Werkzeugmaschinenfabrik Oerlikon Buhrle 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 Werkzeugmaschinenfabrik Oerlikon Buhrle AG filed Critical Werkzeugmaschinenfabrik Oerlikon Buhrle AG
Application granted granted Critical
Publication of US2806427A publication Critical patent/US2806427A/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
    • 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
    • F42C9/18—Double fuzes; Multiple fuzes for self-destruction of ammunition when the spin rate falls below a predetermined limit, e.g. a spring force being stronger than the locking action of a centrifugally-operated lock

Definitions

  • This invention relates to point-detonating fuses for rotating projectiles. More particularly, the invention relates to a fuse in which a tiring pin is normally locked in an unarmed position by a plastically deformable member, and in which furthermore an inertia body upon the ring of the projectile is forced against this member to unlock the firing pin.
  • a still further object of the invention is to provide a plastically deformable member of such type that the effort on deforming the member as a function of the displacement of said inertia body is selective within wide limits.
  • Fig. 1 is a longitudinal section of a projectile fuse according to the invention, in the transport position, and
  • Fig. 2 is a corresponding section in the detonating position.
  • an inertia body 2 in the forward portion of the fuse head 1 an inertia body 2 is housed.
  • the fuse head 1 is closed on top by a membrane 3.
  • a shock safety element in the shape of a helically wound wire 4 is arranged in the enlarged rear portion of the inertia body 2 . The latter abuts on the one hand against the inertia body 2, and on the other hand against the end of the detonator pin 5 which extends into the said bore of the inertia body Z.
  • a helical compression spring 6 is arranged around the enlarged portion of the inertia body 2 and abuts on the one hand on a shoulder of the said fuse head 1, and on the other hand on a guide bushing 7 which rests on a collar 5a of the said detonator pin 5.
  • centrifugal bodies 9 are articulated by means of tiltably pivoted forks 8, which bodies 9 rest in the transport position on the chamfered edge of a sleeve 10 which is heid with its collar 10a between a shoulder of the said fuse head 1 and the edge of a rotor casing 11 which is screwed into the said fuse head 1.
  • This rotor casing 11 contains a rotatably journalled rotor 12 of symmetrical construction.
  • This rotor has in its axis of symmetry a bore 12a which goes right through and which contains in a restricted portion a detonator cap 13.
  • the said axis of symmetry of the rotor 12 includes in the transport position an angle with the longitudinal axis of the fuse (Fig. 1) the shoulder Sb of the detonator pin 5 abutting on CIT A at@ 2,806,427
  • the membrane 3 When the fuse, in transport, is allowed to drop on its point, the membrane 3 is pierced and the inertia body 2 compresses the shock safety element 4 untii the said body abuts on the guide bushing 7. Since the detonator pin 5 is, however, locked in the downward direction by its shoulder 5b abutting on the flat 12b of the rotor body 12, no priming can take place. The fuse is accordingly secure against detonation by being dropped in transport.
  • the inertia body 2 compresses the ⁇ shock safety element 4 owing to its inertia (Fig. 2).
  • the centrifugal bodies 9 are driven outwards along the chamfered edge of the sleeve 10, owing to the rotation of the projectile when red.
  • the forks 8 of the centrifugal bodies 9, being articulated to the detonator pin 5, carry the latter along in the forward direction against the action of the compression spring 6, whereby the shoulder 5b of the detonator pin is lifted off the at 12b of the rotor body 12. Thereby the latter is set free to right itself up into the position shown in Fig. 2 in which its axis of symmetry coincides with the longitudinal axis of the fuse, and its bore 12a which contains the detonator cap 13 registers with the detonator pin 5 and with the bore 11b of the rotor casing.
  • a fuse head In a point impact detonating fuse for a rotary projectile, a fuse head, a tiring member located within said fuse head in alignment with the axis of rotation of said rotary projectile and movable along said axis, said tiring member having a firing pin at one end thereof and a guide pin at the opposite end thereof, supporting means for said liring member, resilient means resiliently pressing said ring member in t-he axial direction opposed to the direction of flight of.
  • centrifugal members connected with said firing member for movling said firing member during flight from its inoperative to its operative position, an inertia body located within the fuse head and movable axially thereof, the inertia body engaging the fuse head in its inoperative, unarmed position, and a coiled wire plastically deformable in the direction of its axis, relatively inelastic compared to the resilient means, positioned within the inertia body A t Y, 3 withI the ends of the wire respectively engaging the inertia body and the guide pin, the parts being so constructed and arranged that said firing member is prevented from being moved by said centrifugal bodies in the direction of flight into its armed: position nntil.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)
US363044A 1952-06-26 1953-06-22 Projectile fuse Expired - Lifetime US2806427A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2806427X 1952-06-26

Publications (1)

Publication Number Publication Date
US2806427A true US2806427A (en) 1957-09-17

Family

ID=4571924

Family Applications (1)

Application Number Title Priority Date Filing Date
US363044A Expired - Lifetime US2806427A (en) 1952-06-26 1953-06-22 Projectile fuse

Country Status (3)

Country Link
US (1) US2806427A (de)
CH (1) CH314030A (de)
DE (1) DE940757C (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2949856A (en) * 1956-01-24 1960-08-23 Nl Machf Artillerie Inrichteng Fuzes having a self-destructive action
US2962968A (en) * 1955-09-21 1960-12-06 Jr Alois G Neuwirth Centrifugally armed and selfdestroying impact fuze
US3033115A (en) * 1958-06-12 1962-05-08 Brevets Aero Mecaniques Nose fuzes of the percussion type including a self-destruction device
US3086469A (en) * 1960-06-14 1963-04-23 Daniel D Musgrave Electric exploder
US3135206A (en) * 1956-09-21 1964-06-02 Bofors Ab Fuze for projectiles
US3392672A (en) * 1967-05-29 1968-07-16 Navy Usa Flare lighter
US3483822A (en) * 1961-11-13 1969-12-16 Us Army Rotor fuze
US4006690A (en) * 1974-05-06 1977-02-08 Suzanne Stockman Mechanism for firing a projectile such as a rifle grenade
US4464992A (en) * 1983-03-14 1984-08-14 Thoikol Corporation Sector type initiator for artillery projectiles

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE507694A (de) *
BE512669A (de) * 1957-09-30
US1302902A (en) * 1918-01-24 1919-05-06 Nathan Mfg Co Percussion-fuse for shells or projectiles.
US1356828A (en) * 1919-05-10 1920-10-26 Government Percussion and ignition fuse
GB516564A (en) * 1937-05-04 1940-01-05 Sageb Sa Improvements in or relating to fuzes for projectiles
US2428380A (en) * 1941-01-27 1947-10-07 Harry J Nichols Fuse
US2641186A (en) * 1947-11-03 1953-06-09 Mach Tool Works Oerlikon Admin Fuse

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB125649A (en) * 1916-10-06 1919-05-01 Albert Henry Midgley Improvements in and relating to Percussion Fuses for Explosive Projectiles.
FR726539A (fr) * 1931-01-22 1932-05-30 Fusée percutante à élément déformable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE507694A (de) *
US1302902A (en) * 1918-01-24 1919-05-06 Nathan Mfg Co Percussion-fuse for shells or projectiles.
US1356828A (en) * 1919-05-10 1920-10-26 Government Percussion and ignition fuse
GB516564A (en) * 1937-05-04 1940-01-05 Sageb Sa Improvements in or relating to fuzes for projectiles
US2428380A (en) * 1941-01-27 1947-10-07 Harry J Nichols Fuse
US2641186A (en) * 1947-11-03 1953-06-09 Mach Tool Works Oerlikon Admin Fuse
BE512669A (de) * 1957-09-30

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2962968A (en) * 1955-09-21 1960-12-06 Jr Alois G Neuwirth Centrifugally armed and selfdestroying impact fuze
US2949856A (en) * 1956-01-24 1960-08-23 Nl Machf Artillerie Inrichteng Fuzes having a self-destructive action
US3135206A (en) * 1956-09-21 1964-06-02 Bofors Ab Fuze for projectiles
US3033115A (en) * 1958-06-12 1962-05-08 Brevets Aero Mecaniques Nose fuzes of the percussion type including a self-destruction device
US3086469A (en) * 1960-06-14 1963-04-23 Daniel D Musgrave Electric exploder
US3483822A (en) * 1961-11-13 1969-12-16 Us Army Rotor fuze
US3392672A (en) * 1967-05-29 1968-07-16 Navy Usa Flare lighter
US4006690A (en) * 1974-05-06 1977-02-08 Suzanne Stockman Mechanism for firing a projectile such as a rifle grenade
US4464992A (en) * 1983-03-14 1984-08-14 Thoikol Corporation Sector type initiator for artillery projectiles

Also Published As

Publication number Publication date
CH314030A (de) 1956-05-31
DE940757C (de) 1956-03-22

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