US3358604A - Non-gyrating projectile fuse - Google Patents

Non-gyrating projectile fuse Download PDF

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Publication number
US3358604A
US3358604A US518889A US51888966A US3358604A US 3358604 A US3358604 A US 3358604A US 518889 A US518889 A US 518889A US 51888966 A US51888966 A US 51888966A US 3358604 A US3358604 A US 3358604A
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United States
Prior art keywords
rod
rack
fuse
hammer
cover
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
US518889A
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English (en)
Inventor
Combourieux Andre
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.)
Industrial-Holding-Establishment
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Industrial-Holding-Establishment
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Publication of US3358604A publication Critical patent/US3358604A/en
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • 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
    • F42C15/18—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges wherein a carrier for an element of the pyrotechnic or explosive train is moved
    • 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
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • F42C9/041—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor the clockwork activating a security device, e.g. for unlocking the firing-pin
    • 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
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • F42C9/041—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor the clockwork activating a security device, e.g. for unlocking the firing-pin
    • F42C9/043—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor the clockwork activating a security device, e.g. for unlocking the firing-pin and the firing-pin being activated by impact
    • 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
    • F42C9/02—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means
    • F42C9/04—Time fuzes; Combined time and percussion or pressure-actuated fuzes; Fuzes for timed self-destruction of ammunition the timing being caused by mechanical means by spring motor
    • F42C9/048—Unlocking of clockwork mechanisms, e.g. by inertia or centrifugal forces; Means for disconnecting the clockwork mechanism from the setting mechanism
    • 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
    • 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
    • F42C9/141—Impact fuze in combination with a clockwork time fuze

Definitions

  • ABSTRACT OF TIIE DISCLOSRE An impact projectile fuse having a body and a cover for the body.
  • a trajectory safety means comprises a rack and an escapernent cooperating With such rack. The movement of the rack is controlled by the escapement.
  • a first locking means is provided for a rocker arm to prevent operation of the rocker arm before firing and also the movement of a 'hammer bolt.
  • a second locking means is provided for the hammer bolt controlled by the. rack to release the hammer after a predetermined movement of the rack.
  • the first locking means comprises a rod movable axially in the body of the fuse and which is accessible by merely removing the fuse cover so that such rod may be brought back to a security position after a trial operation.
  • the escapement is of a reversible type and the body of the fuse is provided With a radial orifice in order to permit acting on the rack from the outside to bring it back to position after an operational trial.
  • the present invention concerns a non-gyrating pro jectile fuse, of the type operating upon impact and comprising, on the one hand, trajectory safety means inclnding a rocker-mm actuated by a spring and regulating the speed of radial movement of a rack, through the agency of an escapement, and on the other hand, first locking means to prevent, on the One hand the operation of the rocker-arm before firing, and on the other hand the movement of a hammer bolt, as well as additional locking means for the hammer bolt, driven by the rack, so as completely to release the hammer only after a certain movement of this rack.
  • This fuse is characterized in that the first locking means are formed by a rod movable axially in the body of the fuse and accessible at the same time as the hammer bolt by dismounting at most the cover of the fuse to permit of bringing this rod and this bolt back to the initial position after the operation trial, in that the escapement is of the reversible type, and in that an orifice is provided radially in the body, opposite to the rack, to permit of acting on the latter from the outside in order to bring it -back to the initial position after the operation trial, the second locking means being provided to return to the pre trial initial position, through the influence of gravity, when One brings the fuse into a certain well defined position, after the hammer bolt has itself been brought back to the initial position.
  • FIG. 1 is a view in axial section along 1*1 of FIG. 3.
  • FIG. 2 is a view in cross section along 22 of FIG. 1.
  • FIG. 3 is a view in cross section along 33 of FIG. 1 showing the members in the safety position.
  • FIG. 4 is a view similar to FIG. 3, but showing the members in the so-called instantaneous position.
  • FIG. 5 is a view similar to FIG. 3, but showing the members in a so-called lag position.
  • FIG. 6 is a view in partial section along 66 of FIG. 7, on a larger scale, showing the rocker-arm and escapement device.
  • FIG. 7 is a plan view corresponding to FIG. 6.
  • FIG. 8 is a view in partial section of a detail already visible in FIG. 1 and showing the members in the safety position, before firing.
  • FIG. 9 is a view in cross section along 99 of FIG. 8.
  • FIG. 10 is a view similar to FIG. 8, but showing the members in the operating position which they occupy after the firing of the shot.
  • FIG. 11 is a view in cross section along 1111 of FIG. 10.
  • the fuse shown comprises a body 1 on which is rotatably mounted a cover 2 itself provided with a cap 3.
  • An insulating joint 4 is provided between the body 1 and the cover 2.
  • the axial immobilization of the cover relative to the body is efiected due to a slit elastic ring 5 disposed in two complementary grooves made the One at 6 in the body 1 and the other opposite at 7 in the cover 2.
  • This elastic ring is normally contracted so as to be disposed completely in the groove 6.
  • a pointed screw 8 disposed in a corresponding threaded hole of the cover 2 is provided to separate One front the other the two ends of said ring When the screw 8 is screwed home in its hole.
  • FIG. 1 When the cover is in the position shown in FIG. 1 which corresponds to FIG. 3, the members are in a socalled safety position in which the hammer 9 is held stationary by a hammer bolt 10. Simultaneously, a solid wall of a primer-holder barre] 11 is opposite the hammer. On the other hand, in this safety position, a primer-holder rack 12 ensures the breaking, as Will be seen later on, of the pyrotechnical chain by which firing is effected.
  • a radial hole 13 made in the body 1 is opposite a solid portion of the cover 2.
  • the ball 15 is partly engaged in a notch 16 of a rod 17 parallel to the shaft of the fuse.
  • This rod is provided to slide in a tube 18 made in the frame 19 of a safety device which Will be described later on.
  • the lower end of this rod 17, which is hollow, is engaged in a socket 20 itself disposed in a housing of the body l.
  • a compression spring 21 is disposed inside the socket 20 and acts upwardly in FIG. 1, on the rod 17. long as the halls 14 and 15 are in the position shown in FIG. 1, the rod 17 is immobilized.
  • the rod 17 immobilizes the hammer bolt 10, that is to say prevents it from rotating about its pivoting spindle 22 (FIG. 2).
  • a ball 23 is partly engaged in a housing 24 of the lower face of the bolt 10 and partly in a hole 25 parallel to the axis of the fuse and made in the upper part 26 of the frame 19.
  • This frame 19, 26 is in two pieces for mounting reasons.
  • This hall is held in the position shown in FIG. 1 by a rod 27 disposed in the hole 26 to slide therein. The lower end of this rod abats against the prime-holder rack 12 when the members are in the position according to FIG. 1.
  • a driving dog 28 stationary relative to the cover 2 is partly engaged in a slot 29 made in the prime-bolder barrel 11.
  • this dog 28 obliges the barrel to rotate about tis own axis by cansing it to pass from the position visible in FIG. 3 to that shown in FIG. 4.
  • the priming 30 has placed itself in the axis of the fuse. This priming is provided for instantaneous firing upon impact.
  • the other priming 31 of the barrel 11 occupies, in the instantaneous position, the place shown in FIG. 4.
  • a lug 32 is fixed in the body 1 and is opposite a countersinking 33 made in the cover 2. In the safety position, this lug is between the two ends of the milling whereas in the instantaneous position it abuts against one of these ends and in the lag position, against the other end.
  • the selection of one of the two operating positions, lag or instantaneous may be carried out Without eye help.
  • the rod 17 passes from the position according to FIG. 8 to the position of FIG. 10, by compressing its spring 21.
  • a leaf spring 35 fixed in a manner not shown on a part of the frame o-f the mech anism slackens and passes from the position according to FIG. 8 to that according to FIG. 10, where its free end places itself opposite the upper end of the rod 17. From this moment, this spring 35 prevents the rod 17 from re acting to the action of the spring 21. This rod is thus immobilized in the lower position.
  • the priming 41 of the latter is in the axis of the fuse and from thence on the diterent elements of the pyrotechnical chain 30 or 31, 41 and a relay 53 of a detonator 54 (FIG. 10) are in alignment and firing may take place.
  • the rear end 48 of the latter has passed in front of the lower end of the rod 27, so that this rod is no longer blocked in the position according to FIG. 1.
  • a torsion spring not shown, acting on the hammer bolt 10 this bolt begins to rotate, thus forcing the ball 23 and the rod 27 downwards since nothing any longer holds back this rod.
  • the hammer bolt As soon as the hammer bolt has released the hammer, the latter is able to bring about the ring at the moment'when the projectile meets an obstacle.
  • the operation of the hammer may take place in two ways: either by percussion of the central part 49 of the cap 3 which crashes bringing about the driving back of the hammer downwardly in FIG. 1, or simply by inertia, if the projectile bits an obstacle in a skimming way and in this latter case, at the moment of braking or stopping of the projectile, through inertia, the primer-holder barrel 11 is projected forwards and the priming 30 or 31 which is in the axial position strikes the point of the hammer.
  • One secs at 50 the spring which normally maintains the hammer in the position of rest.
  • trajectory safety means including a rocker-ana, spring-actuated and regulating the speed of radial movement of a primerholder rack, this adjustment being effected through the agency of an escapement.
  • These trajectory safety means further comprise first locking means (rod 17 to prevent on the one hand the operation of the rocker-arm before firing and on the other hand the movement of the hammer bolt. Additional locking means shown by the rod 27 and the ball 23 are provided so as completely to release the hammer only after a certain movement of the rack.
  • the first locking means are constituted in this example in a very advantageous manner by a single element 17 provided to slide axially in the body of the fuse.
  • a single element 17 provided to slide axially in the body of the fuse.
  • One thus replaces by a single member a complicatcd assembly of members which is to be found in certain existing fuses.
  • means not shown and easy to imagine are provided to prevent accidental rotation of the rod 17 about its own axis.
  • the rod 17 is accessible at the same time as the hammer bolt 10 simply by removing the cover 2. This removal is easy since it is sufficient to unscrew slightly the pointed screw 8 for the elastie ring 5 to take up the withdrawn position and free the cover. Thus, it is possible, after the operation trial, to return the rod 17 and the bolt 10 to the initial position.
  • operaton trial is meant, as is well known, a mechanical trial permitting of verifying all the functions of the fuse except, of course, the firing. This firing may be prevented very simply by providing for the trial a primer-holder barrel equipped with an inert priming, barrel which is replaced after the trial. Other methods of procedure are known.
  • a radial threaded hole 51 in a position diametrally opposite to the spring 39.
  • a threaded plug 52 normally closes this hole.
  • the members 8 and 52 may then definitely be immobilzed by a centre punch blow or by hammering in order to prevent acts of sabotage.
  • a non-gyrating impact projectile fuse comprising a body, a cover for said body, a trajectory safety means comprising a rack, an escapement cooperating with said rack, a rocker-mm, a spring cooperating with said rockerarm for regulating the speed of radial movement of said rack controlled by said escapement, a hammer, a hammer boit, a first locking means for said rocker-mm to prevent the operation of said rocker-mm before firing and the movement of said hammer bolt, a second locking means for said hammer boit controlled by said rack to release completely said hammer after a predetermined movement of said rack, said first locking means comprising a rod movable axially in said body, said rod and said hammer bolt being accessible by dismounting said cover to bring said rod and bolt back to the initial position after an operation trial, said escapement being of the reversible type, said body having a radial orifice opposite said rack t0 permit acting on said rack from the exterior to return it to initial position

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Security & Cryptography (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Retarders (AREA)
  • Fuses (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Air Bags (AREA)
US518889A 1965-01-08 1966-01-05 Non-gyrating projectile fuse Expired - Lifetime US3358604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH27865A CH409709A (fr) 1965-01-08 1965-01-08 Fusée de projectile non girant

Publications (1)

Publication Number Publication Date
US3358604A true US3358604A (en) 1967-12-19

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ID=4183338

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Application Number Title Priority Date Filing Date
US518889A Expired - Lifetime US3358604A (en) 1965-01-08 1966-01-05 Non-gyrating projectile fuse
US518937A Expired - Lifetime US3367267A (en) 1965-01-08 1966-01-05 Non-gyrating projectile fuse

Family Applications After (1)

Application Number Title Priority Date Filing Date
US518937A Expired - Lifetime US3367267A (en) 1965-01-08 1966-01-05 Non-gyrating projectile fuse

Country Status (10)

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US (2) US3358604A (en])
BE (1) BE674761A (en])
CH (1) CH409709A (en])
DE (1) DE1264298B (en])
ES (1) ES321757A1 (en])
FI (1) FI43548B (en])
FR (1) FR1462840A (en])
GB (1) GB1126932A (en])
IL (1) IL24921A (en])
NL (1) NL6516267A (en])

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750590A (en) * 1967-10-18 1973-08-07 Us Army Fluid safety and arming system

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH475544A (fr) * 1968-04-04 1969-07-15 Mefina Sa Fusée mécanique à temps
DE2643828C3 (de) * 1976-09-29 1980-09-11 Gebrueder Junghans Gmbh, 7230 Schramberg Zünder für drallarm zu verschießende Geschosse
CH635672A5 (fr) * 1980-01-29 1983-04-15 Mefina Sa Fusee pour projectile.
RU2186335C1 (ru) * 2001-10-08 2002-07-27 Федеральное государственное унитарное предприятие "Научно-исследовательский институт "Поиск" Контактное взрывательное устройство для управляемых ракет
RU2193748C1 (ru) * 2002-02-08 2002-11-27 Федеральное государственное унитарное предприятие "Научно-исследовательский институт "Поиск" Взрыватель для малогабаритной зенитной управляемой ракеты
RU2680572C1 (ru) * 2018-03-01 2019-02-22 Акционерное общество "Конструкторское бюро приборостроения им. академика А.Г. Шипунова" Инерционный замыкатель

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1154579A (en) * 1915-06-02 1915-09-21 Rheinische Metallw & Maschf Shell-fuse.
US2664822A (en) * 1950-01-03 1954-01-05 Frank B Hale Fuze
US2821925A (en) * 1956-04-16 1958-02-04 Ufa Universal Finanzierungs Au Double-acting percussion fuze provided with a safety device for projectiles
US2967483A (en) * 1955-01-31 1961-01-10 Junghans Helmut Shell fuze

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1665666A (en) * 1926-05-21 1928-04-10 Junghans Siegfried Percussion fuse
BE565799A (en]) * 1957-03-28
DE1135798B (de) * 1958-06-14 1962-08-30 Industrial Holding Ets Zuender fuer Geschosse ohne Drall
US3148621A (en) * 1958-06-14 1964-09-15 Industrial Holding Ets Projectile fuze
AT222546B (de) * 1958-09-24 1962-07-25 Karl Dipl Ing Leitner Geschoßzünder, insbesondere für Wurfgranaten

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1154579A (en) * 1915-06-02 1915-09-21 Rheinische Metallw & Maschf Shell-fuse.
US2664822A (en) * 1950-01-03 1954-01-05 Frank B Hale Fuze
US2967483A (en) * 1955-01-31 1961-01-10 Junghans Helmut Shell fuze
US2821925A (en) * 1956-04-16 1958-02-04 Ufa Universal Finanzierungs Au Double-acting percussion fuze provided with a safety device for projectiles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3750590A (en) * 1967-10-18 1973-08-07 Us Army Fluid safety and arming system

Also Published As

Publication number Publication date
FR1462840A (fr) 1966-12-16
DE1264298B (de) 1968-03-21
US3367267A (en) 1968-02-06
GB1126932A (en) 1968-09-11
ES321757A1 (es) 1966-07-01
NL6516267A (en]) 1966-07-11
BE674761A (en]) 1966-05-03
FI43548B (en]) 1970-12-31
CH409709A (fr) 1966-03-15
IL24921A (en) 1971-01-28

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