EP0263548A1 - Teleskopische Granate - Google Patents

Teleskopische Granate Download PDF

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Publication number
EP0263548A1
EP0263548A1 EP87201724A EP87201724A EP0263548A1 EP 0263548 A1 EP0263548 A1 EP 0263548A1 EP 87201724 A EP87201724 A EP 87201724A EP 87201724 A EP87201724 A EP 87201724A EP 0263548 A1 EP0263548 A1 EP 0263548A1
Authority
EP
European Patent Office
Prior art keywords
telescopic
grenade according
tail
housing
groove
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.)
Granted
Application number
EP87201724A
Other languages
English (en)
French (fr)
Other versions
EP0263548B1 (de
Inventor
André M. Gabriels
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.)
CESSIONE;FABRIQUE NATIONALE NOUVELLE HERSTAL
Original Assignee
FN Herstal SA
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 FN Herstal SA filed Critical FN Herstal SA
Publication of EP0263548A1 publication Critical patent/EP0263548A1/de
Application granted granted Critical
Publication of EP0263548B1 publication Critical patent/EP0263548B1/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
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • 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
    • F42C15/30—Arming-means in fuzes; Safety means for preventing premature detonation of fuzes or charges operated by flow of fluent material, e.g. shot, fluids of propellant gases, i.e. derived from propulsive charge or rocket motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/12—Stabilising arrangements using fins longitudinally-slidable with respect to the projectile or missile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/04—Rifle grenades
    • 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
    • F42C15/188—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 using a rotatable carrier
    • 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

  • This invention relates to a telescopic grenade, for example a grenade intended to be launched using a rifle and equipped with a bullet pass.
  • Telescopic projectiles are already known having a head extended by a tubular tail and containing an explosive charge as well as a firing chain of the latter, said tail being produced in two telescopic tubular parts, one of which is integral with said head. and carries with the latter a first part of said firing chain and the other of which carries the remaining part of the latter, guide means being distributed over said two parts in order to assign them a determined angular position, as a function of their relative axial position.
  • the projectile according to the invention consists essentially of a head extended by a tubular tail containing an explosive charge as well as a firing chain of the latter and in which said tail is made of two telescopic tubular parts, the l one is integral with said head and carries with the latter a first part of said firing chain and the other of which carries the remaining part of the latter, this projectile being provided with guide means distributed over said two parts in order to assign them an angular position according to their relative axial position.
  • This projectile is characterized in that it has means ensuring safety in the storage-transport position; means determining the exact relative position of the parts; means determining, under the effect of the propellant gases, a relative translation between the constituent parts of the tail; means preventing a untimely detonation and early trajectory safety means.
  • the projectile represented in the figures comprises a head 1 and a telescopic tubular tail 2 with tail section 3.
  • the tail 2 is produced in two parts 4-5, the part 4 of which is integral with the head 1 and the part 5 of which can slide around of the first.
  • the head 1 has inside a plate 6 provided with a percussion point 7 and a device 8 preventing an involuntary detonation.
  • the head 1 is fixed to the end of a sheath 9, the other end of which is provided with a sleeve 10.
  • a body 11 constituting the explosive charge of the projectile.
  • This body 11 has a single longitudinal groove 12 extending, at its end closest to the head 1, by a curved part 13.
  • a chamber 16 in which is housed a spring 17 acting against a shoulder 18 of the sleeve 10.
  • the latter has a circular groove 19 communicating, in the position of FIG. 2, with radial holes 20 provided for in said part 5 and communicating themselves mes with a circular chamber 21 in the housing 15.
  • radial holes 20 provided for in said part 5 and communicating themselves mes with a circular chamber 21 in the housing 15.
  • the sleeve 10 has two radial chambers 23-24 housing, each, a stressed ball 25 by a spring 26.
  • Said part 5 of the tail 2 has a groove 27 with which the balls 25 can cooperate.
  • the housing 15 is fixed to said part 5 by means of a deformable cup 29 allowing, after deformation, a translation of the housing 15 relative to the part 5.
  • an elastic locking ring 36 which can cooperate with a groove 37 in part 5.
  • the firing pyrotechnic chain comprises the percussion point 7, a detonator 30 and a relay 31 embedded in said explosive charge 11.
  • the percussion point 7 as well as the relay 31 are part of the head 1, while the detonator 30 is housed in a notch in the housing 15 which, in turn, is part of the telescopic tubular tail 2.
  • Said device 8 preventing an inadvertent detonation of the projectile in flight consists of a damper 32, the damping of which is determined by a spring 33.
  • the head 1 is extended by a protective tube 34 for the explosive charge 11.
  • the part 5 with the housing 15 occupies an angular position relative to the head 1 and the part 4 in such a way that the point 7 is misaligned with respect to the detonator 30, any relative movement of the part 5 relative to the head 1 being prevented by the contact of an extension 35 against the plate 6.
  • the extension 35 can be fixed either on said part 5 or on the plate 6.
  • the projectile is ready to be engaged on the sleeve at the end of the barrel of a rifle used for its launching.
  • the propellants enter, through the grooves 22, in the circular groove 19 and, thus, through the holes 20 in the groove 21.
  • the housing 15, by deforming the bowl 29, moves relative to the part 5.
  • the elastic ring 36 falls into the groove 37, thus ensuring the locking of the housing 15 relative to the part 5.
  • the balls 25 move in the two radial chambers 23-24 against the force of the springs 26, the latter undergoing a deformation such that they become inoperative.
  • the device 8 prevents any further progression of the part 5 until impact.
  • the spring 33 is calculated to avoid inadvertent detonation, for example by contact of the projectile with rain tropical, etc.
  • part 5 Upon impact, the high mass of part 5 is set in motion and communicates all of its energy to the detonator when it strikes the striker 7.
  • the safety of the start of the trajectory of the projectile according to the invention is controllable by the presence of the tube 34 with which the housing 15 cooperates. Indeed, during the path of the latter in the tube 34, it works there as a dash-pot, slowing down said path in a way by evacuating through a calibrated orifice the air present in the free volume 38, the latter being created when the projectile is in the position shown in FIG. 2.
  • the calibrated orifice can be produced by the radial clearance between the outside diameter of the housing 15 and the inside diameter of the tube 34.
  • said springs 26 will be calculated in such a way that they remain deformed after launching the projectile in order to avoid any friction of the balls 25 on the internal wall of part 5.
  • a make-up charge 40 can be accommodated in the free volume constituted by the ball-passing plug 41 and the sleeve 10.
  • FIG. 10 shows an embodiment in which is interposed, between the springs 26, a bar 39 made of a frangible material which can be destroyed by the passage of the ball in order to make the support for the springs 26 disappear.
  • FIG. 11 shows an embodiment in which the groove 12 is provided in the tube 34, while the groove 13 is provided in an extension 42 of the plate 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Toys (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Tents Or Canopies (AREA)
EP87201724A 1986-10-07 1987-09-10 Teleskopische Granate Expired - Lifetime EP0263548B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2/61065A BE905563A (fr) 1986-10-07 1986-10-07 Grenade telescopique.
BE2061065 1986-10-07

Publications (2)

Publication Number Publication Date
EP0263548A1 true EP0263548A1 (de) 1988-04-13
EP0263548B1 EP0263548B1 (de) 1991-01-23

Family

ID=3865833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87201724A Expired - Lifetime EP0263548B1 (de) 1986-10-07 1987-09-10 Teleskopische Granate

Country Status (9)

Country Link
US (1) US4846070A (de)
EP (1) EP0263548B1 (de)
KR (1) KR920006526B1 (de)
AU (1) AU598306B2 (de)
BE (1) BE905563A (de)
DE (1) DE3767642D1 (de)
GR (2) GR880300143T1 (de)
IN (1) IN167867B (de)
SG (1) SG9192G (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431704A1 (de) * 1989-12-07 1991-06-12 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Granate für Mehrzwecknutzung
BE1005559A3 (fr) * 1991-02-14 1993-10-26 Herstal Sa Dispositif de securite, respectivement retardateur, pour projectile.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1003971A3 (fr) * 1990-11-14 1992-07-28 Herstal Sa Perfectionnements aux projectiles.
US5686692A (en) * 1996-09-30 1997-11-11 The United States Of America As Represented By The Secretary Of The Navy Single fuse follow-through grenade
KR101566160B1 (ko) * 2013-08-23 2015-11-05 주식회사 한화 탄자트랩을 이용한 총류탄

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394582A (fr) * 1963-06-14 1965-04-02 Mefina Sa Grenade à main
FR2214105A1 (de) * 1973-01-11 1974-08-09 Herstal Sa
US4448129A (en) * 1979-11-30 1984-05-15 Fabrique Nationale Herstal Telescopic projectile

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1463993A (en) * 1922-04-17 1923-08-07 Burt Franklin Thomas Rifle grenade
US3490373A (en) * 1968-05-09 1970-01-20 Thiokol Chemical Corp Self-destructing rocket propelled grenade
US3960084A (en) * 1973-08-08 1976-06-01 Fabrique Nationale Herstal S.A. En Abrege Fn Fuse for rifle-grenade
US4023499A (en) * 1975-01-07 1977-05-17 Fabrique Nationale Herstal S.A. Fuse for rifle-grenade
US4395836A (en) * 1980-11-13 1983-08-02 Brunswick Corporation Release apparatus for jet-propelled projectiles
ATA292583A (de) * 1983-08-16 1993-05-15 Noricum Maschinenbau Handel Geschosswaffe, insbesondere panzerbrechende waffe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1394582A (fr) * 1963-06-14 1965-04-02 Mefina Sa Grenade à main
FR2214105A1 (de) * 1973-01-11 1974-08-09 Herstal Sa
US4448129A (en) * 1979-11-30 1984-05-15 Fabrique Nationale Herstal Telescopic projectile

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431704A1 (de) * 1989-12-07 1991-06-12 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Granate für Mehrzwecknutzung
US5074217A (en) * 1989-12-07 1991-12-24 Fabrique Nationale Herstal Multiple use grenade
BE1003635A3 (fr) * 1989-12-07 1992-05-12 Herstal Sa Grenade a usage multiple.
BE1005559A3 (fr) * 1991-02-14 1993-10-26 Herstal Sa Dispositif de securite, respectivement retardateur, pour projectile.

Also Published As

Publication number Publication date
AU598306B2 (en) 1990-06-21
US4846070A (en) 1989-07-11
KR920006526B1 (ko) 1992-08-07
AU7937287A (en) 1988-04-14
DE3767642D1 (de) 1991-02-28
KR880005438A (ko) 1988-06-29
BE905563A (fr) 1987-04-07
GR3001529T3 (en) 1992-11-23
IN167867B (de) 1990-12-29
SG9192G (en) 1992-03-20
GR880300143T1 (en) 1989-01-31
EP0263548B1 (de) 1991-01-23

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