EP3948145B1 - Ventilhülle für ct40-kanone - Google Patents

Ventilhülle für ct40-kanone Download PDF

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Publication number
EP3948145B1
EP3948145B1 EP20733523.3A EP20733523A EP3948145B1 EP 3948145 B1 EP3948145 B1 EP 3948145B1 EP 20733523 A EP20733523 A EP 20733523A EP 3948145 B1 EP3948145 B1 EP 3948145B1
Authority
EP
European Patent Office
Prior art keywords
valve
firing pin
sleeve
valve sleeve
assembly
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.)
Active
Application number
EP20733523.3A
Other languages
English (en)
French (fr)
Other versions
EP3948145A2 (de
EP3948145C0 (de
Inventor
Anne GOURDET
Frédéric ROUHAUT
Colin Stephenson
Patrice Pichot
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.)
CTA International SAS
Original Assignee
CTA International SAS
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 CTA International SAS filed Critical CTA International SAS
Publication of EP3948145A2 publication Critical patent/EP3948145A2/de
Application granted granted Critical
Publication of EP3948145C0 publication Critical patent/EP3948145C0/de
Publication of EP3948145B1 publication Critical patent/EP3948145B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F41A19/29—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension
    • F41A19/36—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block propelled by a spring under tension in block-action guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/13—Percussion or firing pins, i.e. fixed or slidably-mounted striker elements; Mountings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/25—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins
    • F41A19/27—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having only slidably-mounted striker elements, i.e. percussion or firing pins the percussion or firing pin being movable relative to the breech-block
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/42—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer
    • F41A19/43—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in bolt-action guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A19/00—Firing or trigger mechanisms; Cocking mechanisms
    • F41A19/06—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms
    • F41A19/42—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer
    • F41A19/49—Mechanical firing mechanisms, e.g. counterrecoil firing, recoil actuated firing mechanisms having at least one hammer in block-action guns
    • 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
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/045—Cartridges, i.e. cases with charge and missile of telescopic type

Definitions

  • the technical sector of the present invention is that of firing pins for large and medium caliber firearms, in particular tank turret guns, and in particular for the CT40 gun.
  • EP 0 660 068 A1 describes a valve sleeve.
  • the CT40 cannon uses a particular type of ammunition: telescoped ammunition. These ammunition, the structure of which is known, have the particularity that the projectile is included in the casing and does not protrude from it at the front end. There are different types, and the CT40 cannon can employ various kinds, for example anti-tank, explosive or practice ammunition.
  • the CT40 cannon among its components, has a special part, the valve sleeve, which provides mechanical support for the striker when the telescoped ammunition is fired.
  • valve sleeve In this known version of the valve sleeve, the latter worked in cooperation with the detonation assembly.
  • the striker is secured there to the telescopic detonation assembly and the valve sleeve has a central longitudinal recess in which the striker slides.
  • the valve sleeve thus ensures the correct positioning of the firing pin and, by the sliding of its front part, the mechanical support necessary for successful detonation.
  • valve sleeve gives the CT40 barrel proven efficiency and reliability, but it also imposes a constraint. Indeed, if the gunner forgets to install the valve sleeve in the barrel, the barrel may experience a misfire.
  • the present invention provides a new valve sleeve preventing such firing failures.
  • the invention therefore relates to a valve sleeve for the CT40 cannon according to claim 1.
  • the barrel striker is coupled to said valve sleeve and is movable in translation relative thereto.
  • the receiving means consist of a striker sleeve body of substantially cylindrical shape, a striker valve and a striker assembly inserted into said cylindrical sleeve body and the striker inserted both in the valve and the striker assembly, these means being of revolution.
  • a ring is interposed between the valve and the striker assembly, said ring being connected to the valve by a cylindrical pin and being able to slide relative to the valve.
  • the sleeve comprises a spring inserted in a cage delimited by this sleeve and is placed in abutment against the ring, said spring being intended to return the valve to its initial rest position.
  • the spring is compressed by the ring during the translational movement of the striker assembly.
  • the striker assembly is held in position by means of a plug and an elastic ring.
  • the sheath of valve is made of a steel type material with high mechanical characteristics resistant to heat and pressure.
  • valve sleeve according to the invention lies in the fact that it is impossible to fire if said sleeve is not inserted in the barrel. It therefore provides infallible mechanical support for the firing pin during firing.
  • valve sleeve 1 in the form of a solid part 2 machined and enclosing from front to rear a striker valve 3, a spring guide 5 and a striker assembly 7 , these different elements being movable inside the sheath 1 as will be explained below.
  • This figure represents the rest or inactive position of the percussion assembly.
  • the striker valve 3 comprises a first shoulder 20 cooperating with a complementary shoulder of the sheath 1 held together in constant support by means of a spring 4 in the rest position in the figure.
  • This spring 4 partially surrounds the valve 3 and is housed in a cage 101 delimited by sheath 1.
  • the spring guide 5 is in the form of a ring bearing on one side on the free end of the spring 4 and on the other on the striker assembly 7.
  • the spring guide 5 is held in position by a cylindrical pin 6 with respect to the valve 3.
  • the firing pin assembly 7 is held in place inside the sheath 1 by a cap 8 and an elastic ring 9. This assembly 7 has a free end 21 projecting from the sheath 1.
  • the striker 10 is coupled to the sheath while being integrated therein.
  • This striker 10 is arranged in a housing formed both in the valve 3 and the striker assembly 7 while being held tight in this housing and in abutment in the striker assembly.
  • the striker 10 is slightly recessed with respect to the front end of the valve 3 and that the valve 3 is separated from the striker assembly 7 by the free space 23.
  • valve sleeve 1 is housed in the barrel in order to ensure the percussion of the ammunition and is actuated using a detonation assembly.
  • valve sleeve 1 is in relation with the detonation assembly 11 which is a conventional telescopic striker known in the prior art and which it is not necessary to describe in detail. These two elements are in the rest position. It may be noted that this assembly 11 comprises in particular a spring 14, a thruster body 15 provided with protuberances 16, 17 cooperating with grooves 18, 19 making it possible to lock the thruster body 15 in position.
  • valve sleeve 1 is inserted into the barrel of the weapon 12 and opens at the level of the free end of the firing pin 10 into the detonation chamber 13 represented in a simplified manner.
  • the ammunition is not shown.
  • the firing pin 10 is fully inserted into the body of the sleeve 2 and does not protrude forward in the direction of the ammunition to be detonated.
  • the spring 4 is relaxed keeping the valve 3 in intimate contact with the sheath 2 at the level of the shoulder 20.
  • the free end 21 of the firing pin assembly 7 protrudes from the body 2 and is arranged opposite the assembly of detonation 11.
  • FIG. 3 illustrates the first stage of a firing event, the first stage consisting of arming the firing device.
  • the valve sleeve 1 according to the invention remains in this figure in the rest state.
  • the detonation assembly 11 is brought into the cocked position by recoil.
  • the spring 14 is then compressed by the recoil of the thruster body 15.
  • the protuberances 16, 17 of the thruster body 15, in combination with the grooves 18, 19, make it possible to lock the thruster body 15 in the cocked position.
  • the striker assembly 7 is then translated into the body of the sleeve 2 and compresses the valve spring 4 until it comes into contact with said valve 3, which propels the valve of the striker 3 towards the forward, in a translation movement and erases the space 23 represented on the figure 1 .
  • the start and end positions of movement of the striker 10 are perfectly known and ensured. Therefore, the firing pin 10 can in no case deviate from its trajectory and avoid the primer of the ammunition, which would lead to defective firing or a dangerous detonation.
  • the firing pin 10 forming an integral part of the body of the valve sleeve 1, the weapon cannot be used without this element. The possibility that the gunner forgets to place the valve sleeve before firing is thus rendered impossible.
  • the firing pin 10 cannot deviate from the optimal rectilinear trajectory and no faulty firing event can occur.
  • valve 3 and the firing pin assembly 7 are returned to their initial position of the figure 2 by spring 4.

Claims (6)

  1. Ventilhülse (1) für einen Lauf vom Typ CT40, der in Verbindung mit einer Detonationsanordnung (11) zum Betätigen eines Schlagbolzens (10) fungiert, wobei die Ventilhülse (1) eine Aufnahmevorrichtung (2, 3, 7) aufweist, um dem Schlagbolzen (10) des Laufs während des Schießens mechanische Unterstützung bereitzustellen, wobei die Aufnahmevorrichtung (2, 3, 7) drehbar ist und aus einem Schlagbolzenhülsenkörper (2) mit einer im Wesentlichen zylindrischen Form, einem Schlagbolzenventil (3) und einer Schlagbolzenanordnung, die in den zylindrischen Hülsenkörper (2) eingesetzt ist, und dem Schlagbolzen (10), der sowohl in das Ventil (3) als auch in die Schlagbolzenanordnung (7) eingesetzt ist, besteht, dadurch gekennzeichnet, dass eine Buchse (5) zwischen das Ventil (3) und die Schlagbolzenanordnung (7) eingefügt ist, wobei die Buchse (5) durch einen zylindrischen Stift (6) mit dem Ventil (3) verbunden und dazu ausgebildet ist, in Bezug auf das Ventil (3) zu gleiten.
  2. Ventilhülse (1) nach Anspruch 1, dadurch gekennzeichnet, dass sie eine Feder (4) umfasst, die in einen Käfig (101) eingesetzt ist, der von dieser Hülse begrenzt ist und an der Buchse (5) anliegt, wobei die Feder (4) dazu bestimmt ist, das Ventil (3) zurück in seine anfängliche Ruheposition zu führen.
  3. Ventilhülse (1) nach Anspruch 2, dadurch gekennzeichnet, dass die Feder (4) durch die Buchse (5) während der translatorischen Bewegung der Schlagbolzenanordnung (7) zusammengedrückt wird.
  4. Ventilhülse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Schlagbolzenanordnung (7) mittels eines Stopfens (8) und eines elastischen Rings (9) in Position gehalten wird.
  5. Ventilhülse nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Ventilhülse (1) aus einem Stahlmaterial mit hohen mechanischen Eigenschaften hitze- und druckbeständig hergestellt ist.
  6. Ventilhülse (1) nach Anspruch 1, dadurch gekennzeichnet, dass der Schlagbolzen (10) des Laufs mit der Ventilhülse (1) in Eingriff steht und gegenüber dieser translatorisch bewegbar ist.
EP20733523.3A 2019-03-29 2020-04-30 Ventilhülle für ct40-kanone Active EP3948145B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1903405A FR3094472B1 (fr) 2019-03-29 2019-03-29 Fourreau de soupape pour canon CT40
PCT/EP2020/000089 WO2020200511A2 (fr) 2019-03-29 2020-04-30 Fourreau de soupape pour canon ct40

Publications (3)

Publication Number Publication Date
EP3948145A2 EP3948145A2 (de) 2022-02-09
EP3948145C0 EP3948145C0 (de) 2023-06-21
EP3948145B1 true EP3948145B1 (de) 2023-06-21

Family

ID=67262694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20733523.3A Active EP3948145B1 (de) 2019-03-29 2020-04-30 Ventilhülle für ct40-kanone

Country Status (5)

Country Link
US (1) US11614295B2 (de)
EP (1) EP3948145B1 (de)
KR (1) KR20220162602A (de)
FR (1) FR3094472B1 (de)
WO (1) WO2020200511A2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ308804B6 (cs) * 2020-04-03 2021-05-26 Česká Zbrojovka A.S. Sestava kladívka automatiky palné zbraně

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US381264A (en) * 1888-04-17 Wilhelm loeenz
US824130A (en) * 1905-07-12 1906-06-26 Bethlehem Steel Corp Firing mechanism of guns.
US2382225A (en) * 1942-12-08 1945-08-14 Amalgamated Ordnance & Ammunit Ordnance
US4581836A (en) * 1983-07-25 1986-04-15 Bangor Punta Corporation Firing pin and firing pin-bushing assembly
FR2678057B1 (fr) 1991-06-18 1995-02-17 Giat Ind Sa Dispositif de percussion pour une arme a feu.
FR2714161B1 (fr) 1993-12-21 1996-02-09 Giat Ind Sa Dispositif de percussion perfectionné pour une arme à feu.
DE102005012284A1 (de) * 2005-02-03 2006-08-10 Diehl Bgt Defence Gmbh & Co. Kg Mechanisches Initiiersystem für hülsenlose Munition
US7555977B2 (en) * 2005-09-23 2009-07-07 Bae Systems Land & Armaments L.P. Firing pin and valve assembly

Also Published As

Publication number Publication date
EP3948145A2 (de) 2022-02-09
US11614295B2 (en) 2023-03-28
KR20220162602A (ko) 2022-12-08
WO2020200511A3 (fr) 2021-12-16
FR3094472A1 (fr) 2020-10-02
EP3948145C0 (de) 2023-06-21
WO2020200511A2 (fr) 2020-10-08
US20220011069A1 (en) 2022-01-13
FR3094472B1 (fr) 2023-05-26

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