EP0038399B1 - Alimentation de type à bande pour canon automatique à chargement par action de gaz avec deux tambours à griffes, chacun entrainé par un arbre - Google Patents

Alimentation de type à bande pour canon automatique à chargement par action de gaz avec deux tambours à griffes, chacun entrainé par un arbre Download PDF

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Publication number
EP0038399B1
EP0038399B1 EP81100645A EP81100645A EP0038399B1 EP 0038399 B1 EP0038399 B1 EP 0038399B1 EP 81100645 A EP81100645 A EP 81100645A EP 81100645 A EP81100645 A EP 81100645A EP 0038399 B1 EP0038399 B1 EP 0038399B1
Authority
EP
European Patent Office
Prior art keywords
feed
shaft
pawl
feeder
feed shaft
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
Application number
EP81100645A
Other languages
German (de)
English (en)
Other versions
EP0038399A1 (fr
Inventor
Horst Menges
Norbert Schenk
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.)
Rheinmetall Industrie AG
Original Assignee
Rheinmetall GmbH
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 Rheinmetall GmbH filed Critical Rheinmetall GmbH
Publication of EP0038399A1 publication Critical patent/EP0038399A1/fr
Application granted granted Critical
Publication of EP0038399B1 publication Critical patent/EP0038399B1/fr
Expired legal-status Critical Current

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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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/37—Feeding two or more kinds of ammunition to the same gun; Feeding from two sides
    • 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
    • F41A9/00—Feeding or loading of ammunition; Magazines; Guiding means for the extracting of cartridges
    • F41A9/29—Feeding of belted ammunition
    • F41A9/30—Sprocket-type belt transporters

Definitions

  • the invention relates to a belt feeder of an automatic gas-pressure gun barrel weapon, in particular a machine gun, with the features of the preamble of claim 1.
  • Such a belt feeder and its drive is such.
  • the feed shaft stars of the feed shaft clamp the cartridge after the transport of the belt feeder has ended and thereby hinder their discharge through the closure.
  • the cartridge case can be damaged when it is discharged, and there is a higher load on the feed shaft stars and, associated with this, the cadence may drop.
  • the object of the invention is therefore to avoid the disadvantages mentioned.
  • the feed shaft stars should no longer damage the cartridge case after the end of the respective transport, there should be no increased stress on the feed shaft stars and a cadence drop should be avoided.
  • the means used to prevent these disadvantages should not impede the loading and unloading of the weapon and the removal and installation of the feed shafts. Furthermore, the means should be usable in belt feeders of any different construction.
  • US-A-2 375 219 likewise already discloses a pawl arrangement with a forward brake in the case of a non-gas-operated belt feeder for only one belt. There, an additional pawl and an additional actuating disc are required to move the pawl out of the ratchet wheel. No reference to the simple construction of the present invention can be inferred from this either.
  • a feed brake is created for the feed shaft, which jerkily limits the rotation of the respective feed shaft at the end of the feed of the belt by engaging the pawl. This means that the cartridges can no longer be jammed.
  • the arrangement of the drive pinion at the front end of each feed shaft ensures easy installation and removal of the feed shafts.
  • a particularly favorable design results from the fact that the pawls are two-armed, spring-loaded levers and that they are mounted on a common shaft between the feed shafts. Shorter bearing shafts for the pawls result if each pawl is mounted on its own bearing shaft lying side by side between the feed shafts.
  • FIG. 1 and 2 show, surrounded by a housing 12, on the right the feed shaft 5 with ratchet wheel 6 and drive pinion 1, which can be driven to the right, and on the left the ratchet wheel 6 lying a little further back, also in one piece with the feed shaft 5 and before that Drive pinion 1, which can be driven to the left.
  • Each control cam 2 on the drive pinion 1 is assigned a control pin 3 and a pawl 4.
  • the pawls 4 are rotatably mounted on the fixed bearing shaft 8.
  • Fig. 2 shows that the control pin 3 is held in a bore 13 of a housing cover 9.
  • Fig. 3 shows the mounting of the shaft 8, which carries the pawls 4 one behind the other, in the housing cover 9, which is covered at the rear by an end plate 10. So that the pawls can be mounted on a bearing shaft 8 one behind the other, the ratchet wheels are offset in the axial direction on the feed shafts.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Transmission Devices (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)

Claims (4)

1. Alimentation du type à bande pour canon automatique à chargement par action de gaz et en particulier pour canon mitrailleuse, avec alimentation des cartouches dans la chambre de chargement de l'arme de façon alternative par les deux côtés et par l'intermédiaire de tambours à griffes pénétrant dans chaque bande et appartenant à chaque arbre d'alimentation respectif (5), lesdits arbres étant entraînés alternativement en rotation correspondant à l'avance d'une cartouche par un piston déplacé par les gaz provenant en dérivation du canon de l'arme, par l'intermédiaire d'un rochet de commutation respectif ou analogue, caractérisée en ce que sur chaque arbre d'alimentation (5) est montée de façon pivotante en direction dudit arbre (5) en tant que frein d'avance limitant la rotation du tambour à griffes à la fin de l'avance de la bande ne roue à rochet (6) dans les encoches de laquelle peut pénétrer respectivement un cliquet de blocage (4) qui est soumis à la force d'un ressort respectif (7) et en ce que le cliquet de blocage (4) est dégagé des encoches de la roue à rochet (6) au moment où l'arbre d'alimentation n'est pas déplacé par le piston à gaz au moyen d'une came de commande (2) montée sur un pignon d'entraînement (1) tournant avec elle et d'une tige de commande (3) montée entre cette came de commande (2) et le cliquet de blocage (4), mais pénètre dans les encoches et s'enclenche dans celles-ci à la fin de la rotation pendant la rotation de l'arbre d'alimentation, c'est-à-dire pendant l'avance de la bande.
2. Alimentation selon la revendication 1, caractérisée en ce que les cliquets de blocage (4) sont des leviers à deux bras dont un bras s'applique contre la tige de commande (3) et dont l'autre bras est soumis à l'action d'un ressort (7) constitué sous la forme d'un ressort de compression.
3. Alimentation selon l'une des revendications 1 ou 2, caractérisée en ce que les deux cliquets de blocage sont montés sur un arbre de support commun (8) entre les arbre d'alimentations (5).
4. Alimentation selon l'une des revendications 1 ou 2, caractérisé en ce que chaque cliquet de blocage (4) est monté sur un arbre de support propre situé entre les arbres d'alimentation (5).
EP81100645A 1980-04-19 1981-01-29 Alimentation de type à bande pour canon automatique à chargement par action de gaz avec deux tambours à griffes, chacun entrainé par un arbre Expired EP0038399B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3015130 1980-04-19
DE19803015130 DE3015130A1 (de) 1980-04-19 1980-04-19 Gurtzufuehrer einer automatischen gasdrucklader-rohrwaffe, insbes. einer maschinenkanone

Publications (2)

Publication Number Publication Date
EP0038399A1 EP0038399A1 (fr) 1981-10-28
EP0038399B1 true EP0038399B1 (fr) 1984-08-08

Family

ID=6100469

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81100645A Expired EP0038399B1 (fr) 1980-04-19 1981-01-29 Alimentation de type à bande pour canon automatique à chargement par action de gaz avec deux tambours à griffes, chacun entrainé par un arbre

Country Status (4)

Country Link
US (1) US4932307A (fr)
EP (1) EP0038399B1 (fr)
DE (2) DE3015130A1 (fr)
ES (1) ES257133Y (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3131997A1 (de) * 1981-08-13 1983-02-24 Rheinmetall GmbH, 4000 Düsseldorf Gurtzufuehrer einer automatischen gasdrucklader-rohrwaffe, insbesondere einer maschinenkanone
CH666956A5 (en) * 1985-07-19 1988-08-31 Oerlikon Buehrle Ag Cartridge feed star of automatic firearm - is rotated stepwise by barrel recoil, and is locked by swivel arm releasing before each step
US6202534B1 (en) * 1998-01-14 2001-03-20 General Dynamics Armament Systems Variable speed common axis control sprockets used in a shell casing unloading device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB619665A (en) * 1940-02-12 1949-03-14 John Gabler Improvements in or relating to machine guns, automatic cannon or the like
US2375219A (en) * 1942-02-16 1945-05-08 George C Gentry Feed mechanism for cartridge belts
LU30869A1 (fr) * 1951-07-10
FR1572169A (fr) * 1967-11-08 1969-06-27
US3650175A (en) * 1969-04-07 1972-03-21 Gen Electric Rotary sprocketed feeder for belted ammunition
DE2430002C2 (de) * 1974-06-22 1983-08-25 Wegmann & Co, 3500 Kassel Gurtwechseleinrichtung für Schnellfeuerwaffen
DE2809505C2 (de) * 1978-03-06 1982-10-07 Rheinmetall GmbH, 4000 Düsseldorf Gurtzuführerantrieb für eine automatische Gasdrucklader-Rohrwaffe, insbesondere Maschinenkanone
DE3023957C2 (de) * 1980-06-26 1984-04-12 Rheinmetall GmbH, 4000 Düsseldorf Wechselgurtzuführer für eine selbsttätige Feuerwaffe, insbesondere Maschinenkanone

Also Published As

Publication number Publication date
EP0038399A1 (fr) 1981-10-28
ES257133Y (es) 1982-01-01
ES257133U (es) 1981-07-16
DE3015130A1 (de) 1981-10-22
US4932307A (en) 1990-06-12
DE3165305D1 (en) 1984-09-13

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