EP0321345A1 - Verschlussstück für Artilleriekanone - Google Patents

Verschlussstück für Artilleriekanone Download PDF

Info

Publication number: EP0321345A1
Authority: EP; European Patent Office
Prior art keywords: cylinder head; corner; wedge; carriage; sleeve
Prior art date: 1987-12-17
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

EP88403192A

Other languages

English (en)

French (fr)

Other versions

EP0321345B1 (de

Inventor

Patrick Balbo

Robert Vernet

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.)

Giat Industries SA

Original Assignee

Giat Industries SA

Delegation Generale pour lArmement

Gouvernement de la Republique Francaise

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.)

1987-12-17

Filing date

1988-12-15

Publication date

1989-06-21

1988-12-15 Application filed by Giat Industries SA, Delegation Generale pour lArmement, Gouvernement de la Republique Francaise filed Critical Giat Industries SA

1988-12-15 Priority to AT88403192T priority Critical patent/ATE88006T1/de

1989-06-21 Publication of EP0321345A1 publication Critical patent/EP0321345A1/de

1993-04-07 Application granted granted Critical

1993-04-07 Publication of EP0321345B1 publication Critical patent/EP0321345B1/de

2008-12-15 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

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
- F41A19/57—Firing mechanisms operating with primer cartridge

Definitions

the present invention relates to a breech wedge for artillery cannon, more particularly of the type comprising means for supporting a barrel with a stuffing box, the translation and rotation of said barrel being controlled by a pinion-rack assembly.
Such breech wedges are used in cannons intended to fire munitions comprising on the one hand a projectile, and on the other hand a propellant charge contained in a gargoyle or a combustible case.
the charge is ignited by means of a choke placed in a chamber provided at the rear of the breech wedge, and in communication by a light channel with the propellant charge placed at the entrance of the barrel.
the pins are mounted on barrels allowing to bring into the chamber with each shot fired, a new pin not yet consumed.
Document FR-A-2,464,451 describes a cylinder head wedge of the type mentioned above.
the pinion-rack assembly is actuated by a lever secured to the pinion and a cam secured to the recoil slides of the weapon.
the striker is carried in this document by a carriage sliding on the breech corner and abutting on the sleeve in the percussion position, or releasing the gland holder barrel in the open position, using a T-slot system inclined with respect to the direction of movement of the corner.
the light channel is inclined and relatively long, and it does not emerge in the center of the shooting plate.
this breech wedge has a number of drawbacks.
the present invention aims to overcome these drawbacks by providing a breech wedge in which the movements of the barrel are controlled directly by the translation of the wedge, without requiring an external mechanical part. It also aims to simplify the mechanism for holding the choke and percussion.
the subject of the invention is a breech wedge for an artillery cannon, of the type comprising means for supporting a barrel with a stuffing box, the translation and rotation of said barrel being controlled by an assembly consisting of a first pinion and a first rack, characterized in that said first pinion is mounted on a shaft supporting a second pinion arranged to cooperate with a second rack fixed to a fork mounted sliding on said corner, a control lever being pivotally mounted on the cylinder head sleeve and supporting a first roller arranged to cooperate with a groove of the fork so as to cause the sliding of the fork on the breech wedge, and a second roller arranged to cooperate with a groove in the wedge so as to cause the wedge to slide on the breech sleeve.
the second groove may in particular comprise a circular part centered on the axis of rotation of the control lever, so that the breech wedge remains substantially fixed relative to the breech sleeve during the rotation of the threaded barrel.
the two rollers can be mounted coaxially on the control lever, the parts of the grooves of the fork and of the breech corner traversed by the rollers during the sliding of the wedge on the breech sleeve being superimposed when the fork is in its position where The threaded barrel is engaged on the breech wedge.
the breech wedge according to the invention comprises a striker carrying carriage slidingly mounted on the wedge between a first position where the striker is located opposite a nipple to be struck, and a second position where the carriage releases the gland holder barrel, stops being provided on the cylinder head sleeve to cause the carriage to move relative to the corner, when the corner is displaced relative to the sleeve.
the carriage may be integral in translation with a rod sliding in a bore of the cylinder head sleeve, a stop of the rod cooperating with an abutment of the sleeve to bring the carriage into its said first position, when the closing of the cylinder head, and a stop of the carriage cooperating with another stop of the sleeve to bring the carriage into its said second position when the cylinder head opens.
the carriage may advantageously include an inclined surface arranged to cooperate with a corresponding surface of the nipple holder barrel to crimp the nipple in its housing, the resulting translational movement for said first rack, being absorbed by a torsional prestress of the 'support shaft of said first and second pinions.
the actuator of the striker of the breech wedge according to the invention can in particular be pivotally mounted on the wedge in a location such that it is only likely to actuate the striker when the carriage is in its said first position.
the breech wedge 1 is mounted in a known manner sliding on the breech sleeve 2, partially shown in broken lines in FIG. 1.
a mounting system 3 makes it possible to support a nipple holder barrel 4, so that a nipple is placed in a nipple holder chamber 6 communicating with the barrel of the weapon by a light channel 7.
a pinion 8 and rack 9 system makes it possible to roll back the barrel and to rotate it with each shot fired.
the light channel extends along the axis of the barrel of the weapon.
the pinion 8 is mounted at the lower end of a torsion shaft 10 supporting at its upper part another pinion 11 (FIG. 3).
the shaft 10 is rotatably mounted in the cylinder head corner 1, prestressed so as to tend to bring the rack 9 back.
the breech wedge 1 supports a fork 12 slidably mounted using two sets of grooves and T, 13.
the fork 12 also includes a rack 14 arranged to cooperate with the pinion 11.
One end of the lever 15 comprises a sleeve 16 in which a grooved bore 17 is formed capable of cooperating with a corresponding grooved shaft mounted for rotation on the cylinder head sleeve. Only the axis 18 of this tree is shown in Figures 4a and 4b.
the lever 15 also carries at its other end, two coaxial rollers 19 and 20.
the roller 20 is engaged in a Z-shaped groove in the cylinder head corner 1 comprising a first rectilinear part 21, a circular part 22 centered on the axis 18, and a second rectilinear part 23.
the roller 19 is engaged in a rectilinear groove 24 of the fork 12.
the breech wedge 1 also supports a carriage 25 slidably mounted using a T-slot, 26.
the striker 27 is pivotally mounted on the carriage 25 via the axis 28 ( Figure 3 ).
a slider 29 is also slidably mounted on the cylinder head corner 1, using T-shaped grooves 30, and is made integral with the carriage 25 by a projecting member 31.
the slider 29 is also secured with a rod 32 mounted sliding in a bore 33 of the cylinder head sleeve 2.
the rod 32 carries at its end opposite to the slide 29, a nut 34 acting as a stop to cooperate with an abutment surface 35 of the cylinder head sleeve 2.
the carriage 25 has an abutment surface 36 capable of cooperating with a corresponding abutment surface 37 of the cylinder head sleeve 2.
An actuating member 38 of the striker 27 is pivotally mounted on the breech wedge about an axis 39.
the member 38 is rotatably connected to a shaft 40.
a rod 41 is mounted in a bore in the cylinder head corner 1 to move in translation against the action of a spring 42.
Unecame 43 makes it possible to transform the translational movement of the rod 41 into a rotational movement of the shaft 40, and therefore to operate the actuator 38 of the striker.
the roller 19 cooperating with the groove 24 therefore causes the fork 12 to move relative to the cylinder head corner 1 in the direction of arrow F2.
This displacement causes the pinion 11 to rotate in the direction of the arrow F3 by means of the rack 14. It follows a rotation of the shaft 19 and of the pinion 8 which, by means of the rack 9 causes the installation of a choke in the chamber 6, as described in the aforementioned document FR-A-2,464,451.
the front end of the nipple is crimped in the conical end portion of the chamber 6, due to the cooperation of an inclined surface 44 of the carriage 25 with an inclined surface 45 of the nipple holder barrel 4 This crimping results in a torsion of the shaft 10 and results in perfect positioning of the chuck in its housing.
the lever 15 is first returned to its position 15b, which causes a displacement of the breech wedge in the direction of arrow F6, of FIG. 1.
the lever 15 causes the fork 12 to move in the opposite direction to the arrow F1, and, by a reverse movement to that described previously, the extraction and rotation of the stuffing box barrel.

Landscapes

Engineering & Computer Science (AREA)
General Engineering & Computer Science (AREA)
Portable Nailing Machines And Staplers (AREA)
Electrophonic Musical Instruments (AREA)
Saccharide Compounds (AREA)
Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Transmission Devices (AREA)
Holo Graphy (AREA)
Engine Equipment That Uses Special Cycles (AREA)

EP88403192A 1987-12-17 1988-12-15 Verschlussstück für Artilleriekanone Expired - Lifetime EP0321345B1 (de)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT88403192T ATE88006T1 (de)	1987-12-17	1988-12-15	Verschlussstueck fuer artilleriekanone.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8717620		1987-12-17
FR8717620A FR2624961B1 (fr)	1987-12-17	1987-12-17	Coin de culasse pour canon d'artillerie

Publications (2)

Publication Number	Publication Date
EP0321345A1 true EP0321345A1 (de)	1989-06-21
EP0321345B1 EP0321345B1 (de)	1993-04-07

Family

ID=9357968

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP88403192A Expired - Lifetime EP0321345B1 (de)	1987-12-17	1988-12-15	Verschlussstück für Artilleriekanone

Country Status (5)

Country	Link
US (1)	US4991490A (de)
EP (1)	EP0321345B1 (de)
AT (1)	ATE88006T1 (de)
DE (1)	DE3880112T2 (de)
FR (1)	FR2624961B1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR3109815A1 (fr)	2020-05-04	2021-11-05	Nexter Systems	Dispositif de guidage compact d'une masse reculante
FR3109816A1 (fr)	2020-05-04	2021-11-05	Nexter Systems	Dispositif de guidage d'une masse reculante par un organe d'un lien élastique

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5115716A (en) *	1990-01-29	1992-05-26	Fmc Corporation	Automatic percussion primer feed mechanism
DE4128055C2 (de) *	1991-08-23	1996-04-04	Rheinmetall Ind Gmbh	Geschützkeilverschluß
US7246549B1 (en) *	2000-09-06	2007-07-24	United States Of America As Represented By The Secretary Of The Army	Automatic primer feed mechanism
US7357058B1 (en) *	2005-03-15	2008-04-15	The United States Of America, As Represented By The Secretary Of The Army	Safety latch assembly for use in a weapon breech
US7318369B1 (en) *	2005-04-27	2008-01-15	United States Of America As Represented By The Secretary Of The Army	Out-of-battery lock for automatic primer feed mechanism
US8549977B2 (en) *	2011-12-27	2013-10-08	Agency For Defense Development	Apparatus for opening and closing breech block and cannon having the same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2464451A1 (fr) *	1979-09-04	1981-03-06	France Etat Armement	Nouveau dispositif d'alimentation automatique en etoupilles d'un canon d'artillerie
EP0103219A2 (de) *	1982-09-11	1984-03-21	Rheinmetall GmbH	Zündhülsenmagazin für einen Geschützkeilverschluss

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US447376A (en) *		1891-03-03		Breech-loading ordnance
GB190501223A (en) *	1905-01-21	1905-10-05	Arthur Trevor Dawson	Improvements in Breech Mechanism for Ordnance
DE243729C (de) *	1911-06-30
US2353816A (en) *	1941-01-31	1944-07-18	Merton L Dodge	Gun and ammunition
GB579984A (en) *	1943-06-15	1946-08-22	Felix Frederic Ruau	Improvements in or relating to ordnance
DE2362131C3 (de) *	1973-12-14	1979-05-10	Rheinmetall Gmbh, 4000 Duesseldorf	Geschütz-Keilverschluß mit Zündhulsenmagazin

1987
- 1987-12-17 FR FR8717620A patent/FR2624961B1/fr not_active Expired - Lifetime
1988
- 1988-12-15 EP EP88403192A patent/EP0321345B1/de not_active Expired - Lifetime
- 1988-12-15 DE DE8888403192T patent/DE3880112T2/de not_active Expired - Fee Related
- 1988-12-15 AT AT88403192T patent/ATE88006T1/de not_active IP Right Cessation
- 1988-12-16 US US07/285,065 patent/US4991490A/en not_active Expired - Lifetime

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2464451A1 (fr) *	1979-09-04	1981-03-06	France Etat Armement	Nouveau dispositif d'alimentation automatique en etoupilles d'un canon d'artillerie
EP0103219A2 (de) *	1982-09-11	1984-03-21	Rheinmetall GmbH	Zündhülsenmagazin für einen Geschützkeilverschluss

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR3109815A1 (fr)	2020-05-04	2021-11-05	Nexter Systems	Dispositif de guidage compact d'une masse reculante
FR3109816A1 (fr)	2020-05-04	2021-11-05	Nexter Systems	Dispositif de guidage d'une masse reculante par un organe d'un lien élastique
WO2021224762A1 (fr)	2020-05-04	2021-11-11	Nexter Systems	Dispositif de guidage compact d'une masse reculante
US11821702B2 (en)	2020-05-04	2023-11-21	Nexter Systems	Device for guiding a recoiling mass by a member of an elastic link
US11821701B2 (en)	2020-05-04	2023-11-21	Nexter Systems	Compact guide device for a recoiling mass

Also Published As

Publication number	Publication date
FR2624961A1 (fr)	1989-06-23
FR2624961B1 (fr)	1990-04-27
US4991490A (en)	1991-02-12
DE3880112T2 (de)	1993-08-26
EP0321345B1 (de)	1993-04-07
ATE88006T1 (de)	1993-04-15
DE3880112D1 (de)	1993-05-13

Legal Events

Date	Code	Title	Description
1989-05-06	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
1989-06-21	17P	Request for examination filed	Effective date: 19881226
1989-06-21	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE CH DE ES GB IT LI NL SE
1991-09-18	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: GIAT INDUSTRIES
1992-11-04	17Q	First examination report despatched	Effective date: 19920917
1993-02-19	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1993-04-07	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE ES GB IT LI NL SE
1993-04-07	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Effective date: 19930407 Ref country code: NL Effective date: 19930407 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19930407 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19930407
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1993-07-14	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19930610
1993-09-16	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
1993-12-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19931231 Ref country code: LI Effective date: 19931231 Ref country code: CH Effective date: 19931231
1994-02-10	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1994-02-10	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1994-03-30	26N	No opposition filed
1994-06-30	BERE	Be: lapsed	Owner name: GIAT INDUSTRIES Effective date: 19931231
1994-08-31	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1995-01-31	EAL	Se: european patent in force in sweden	Ref document number: 88403192.3
1999-11-25	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: SE Payment date: 19991125 Year of fee payment: 12
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2004-08-04	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20031215

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