US3367267A - Non-gyrating projectile fuse - Google Patents

Non-gyrating projectile fuse Download PDF

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Publication number
US3367267A
US3367267A US518937A US51893766A US3367267A US 3367267 A US3367267 A US 3367267A US 518937 A US518937 A US 518937A US 51893766 A US51893766 A US 51893766A US 3367267 A US3367267 A US 3367267A
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United States
Prior art keywords
rod
fuse
hammer
cover
firing
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
US518937A
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English (en)
Inventor
Andre Combourieux
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Industrial-Holding-Establishment
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Industrial-Holding-Establishment
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Publication of US3367267A publication Critical patent/US3367267A/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 THE DISCLSURE An impact nongyrating projectile fuse having a firing hammer and a hammer bolt associated therewith.
  • Trajectory safety means including a spring actuated rockerarm to control the arming of the fuse.
  • Lcking means are provided to prevent both the operation of such rockerarm before firing and the movement of the hammer bolt.
  • the locking means consist of a single rod actuated by inertia which is mounted to slide axially in the body of the fuse and such rod is the only inertia actuated part for preventing the movement of the hammer bolt.
  • the present invention concerns a non-gyrating projectile fuse, of the type operating upon impact and eomprising trajectory safety means, including a rocker-arm actuated by a spring, to control the arming of the fuse, and looking means to prevent, on the one hand, the operation of the rockerarm before firing and, on the other hand, the movement of a hammer bolt.
  • This fuse is characterized in that the said locking means are constituted by a single element mounted t0 slide axially in the body of the fuse.
  • FIG. 1 is a view in axial section according to 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 the so-called lag position.
  • FIG. 6 is a view in partial section along 6-6 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 of the safety position, before firing.
  • FIG. 9 is a view in cross section along 9-9 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.
  • T he 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 eflected 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 entirely in the groove 6.
  • a pointed screw 8 disposed in a corresponding threaded hole of the cover 2 is provided to separate the one from the other the two ends of said ring when the screw 8 is screwed home in its hole.
  • the separation of the ends of the ring has for result to expand the latter and to bring it to the position shown in FIG. 1 (to the right) where it is seen that this ring is partly engaged in the two circular grooves 6 and 7, thus preventing any relative axial movement of 1 and of 2 while leaving the cover free to rotate relative to the body.
  • FIG. 1 which corresponds to FIG. 3
  • the members are in the so-called safety position, in which the hammer 9 is held stationary by a hammer bolt 1). Simultaneously, a solid wall of a primer-holder barrel 11 is opposite the hammer.
  • a primer-holder rack 12 ensures the break, as will be seen later on, of the pyrotechnical chain by which firing is effected.
  • et radial hole 13 made in the body 1 is opposite a solid part of the cover 2.
  • the ball 15 is partly engaged in a notch 16 of a rod 17 parallel to the axis of the fuse.
  • This rod is provided to slide in a tube 18 made in thetrame 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 1.
  • a compression spring 21 is disposed inside the socket 20 and acts upwardly in FIG. 1, on the rod 17. 50 long as the balls 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 axis 22 (FIG. 2).
  • the following means are further provided to immobilize the hammer bolt 10.
  • 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 an upper part 26 of the frame 19.
  • This frame 19, 26 is in two pieces for mounting reasons.
  • This bail is maintained 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 abuts against the primer-holder rack 12 when the members are in the position according to FIG. 1.
  • a lng 32 is fixed in the body 1 and is disposed pposite a countersinking 33 made in the cover 2.
  • this lug is disposed between the two ends of the countersinking whereas in the instantaneous position it abuts against one of these ends and in the lag position, against the other end.
  • the rod 17 passes from the position according to FIG. 8 to the position et FIG. 10, by compressing its spring 21.
  • a lent spring 35 fixed in a way not shown on a part of the frame of the mechanism slackens and passes from the position according to FIG. 8 to that according to FIG. l0, where its f1ee end places itself opposite the upper end of the rod 17.
  • this spring 35 prevents the rod 17 from reacting to the action of the spring 21. This rod is thus immobilized in the lower position.
  • the priming of the latter is disposed in the axis of the fuse and from that moment 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 1 this bolt starts to rotate, which forces 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 a-ble to occasion firing 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 downwarcls 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 et braking or stopping of the projectile, through inertia, the primer-holder barrel 11 is pr0jected 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-arm actuated by a spring and regulating the speed of radial movement of a primerholder rack, this adjustment being dictated 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-mm 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 in order to release completely 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 complicated assembly of members which one finds in certain existing fuses.
  • means not shown and easy to imagine are provided to prevent accidental rotation et the rod 17 around its own axis.
  • the rod 17 is accessible at the same time as the hammer bolt 1tl simply by removing the cover. This removal is easy since it is sufiicient to unscrew slightly the pointed screw 8 for the elastic ring 5 to assume a withdrawn position and free the cover. Thus, it is possible, after the operation trial, to bring back the rod 17 and the bolt 10 into the initial position.
  • operation trial is understood, as is Well ltnown, a mechanical test permitting or veritying all the functions of the fuse except, of course, firing. This firing may be prevented very easily by providing for the trial a primer-holder barrel equipped With inert priming, barrel which is replaced after the trial. Other methods of procedure are known.
  • a radial threaded hole 51 situated diametrally opposite to the spring 39.
  • a threaded plug 52 normally doses this hole.
  • the control being etfected and the members being brought back to the initial position, one again positions the cover and one screws home the pointed screw 8, then one repositions the plug 52.
  • the members 8 and 52 may then be definitely immobilized by a centre punch blow or by hammering in order to prevent acts of sabotage.
  • a nongyrating projectile fuze of the type operating pon impact comprising a firing hammer, a hammer bolt 5 6 associated with said firin g hammer, trajectory safety means References Cited comprising a springactuated rocker-mm to control the UNITED STATES PATENTS arming of the fuze, an inertia rod mounted t0 slide axially in the body of the fuze having one end blocking said 1,665,666 4/1928 Junghans 10276 rocker-arm to prevent it from oscillating before the firing 5 3148621 9/1964 Varaud 102*84 X of the shot and the other end engaged with said hammer 2,984,184 5/1961 Cetre 102-84 X bolt t0 immobilize the latter in the safezy position, said rod having a notch to register With said rocker-arm upon BENJAMIN BORCHELT Pnmary Exammer firing in order to release said rocker-mm and said hammer SAMUEL FEINBERG

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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)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Air Bags (AREA)
  • Fuses (AREA)
  • Retarders (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Radar Systems Or Details Thereof (AREA)
US518937A 1965-01-08 1966-01-05 Non-gyrating projectile fuse Expired - Lifetime US3367267A (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
US3367267A true US3367267A (en) 1968-02-06

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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 Before (1)

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

Country Status (10)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128061A (en) * 1976-09-29 1978-12-05 Gebruder Junghans Gmbh Safety system for a projectile fuse
US4389937A (en) * 1980-01-29 1983-06-28 Mefina S.A. Fuze for non-spinning projectiles
RU2680572C1 (ru) * 2018-03-01 2019-02-22 Акционерное общество "Конструкторское бюро приборостроения им. академика А.Г. Шипунова" Инерционный замыкатель

Families Citing this family (2)

* 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
CH475544A (fr) * 1968-04-04 1969-07-15 Mefina Sa Fusée mécanique à temps

Citations (3)

* 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
US2984184A (en) * 1957-03-28 1961-05-16 Cetre Jeanne Marie Louise Fuse for gyrating and non-gyrating projectiles
US3148621A (en) * 1958-06-14 1964-09-15 Industrial Holding Ets Projectile fuze

Family Cites Families (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
DE1045285B (de) * 1955-01-31 1958-11-27 Junghans Geb Ag Drallgeschosszerlegerzuender
US2821925A (en) * 1956-04-16 1958-02-04 Ufa Universal Finanzierungs Au Double-acting percussion fuze provided with a safety device for projectiles

Patent Citations (3)

* 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
US2984184A (en) * 1957-03-28 1961-05-16 Cetre Jeanne Marie Louise Fuse for gyrating and non-gyrating projectiles
US3148621A (en) * 1958-06-14 1964-09-15 Industrial Holding Ets Projectile fuze

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4128061A (en) * 1976-09-29 1978-12-05 Gebruder Junghans Gmbh Safety system for a projectile fuse
US4389937A (en) * 1980-01-29 1983-06-28 Mefina S.A. Fuze for non-spinning projectiles
RU2680572C1 (ru) * 2018-03-01 2019-02-22 Акционерное общество "Конструкторское бюро приборостроения им. академика А.Г. Шипунова" Инерционный замыкатель

Also Published As

Publication number Publication date
IL24921A (en) 1971-01-28
NL6516267A (ro) 1966-07-11
FI43548B (ro) 1970-12-31
US3358604A (en) 1967-12-19
CH409709A (fr) 1966-03-15
DE1264298B (de) 1968-03-21
GB1126932A (en) 1968-09-11
FR1462840A (fr) 1966-12-16
ES321757A1 (es) 1966-07-01
BE674761A (ro) 1966-05-03

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