Cradle or bucket chain for infeeding cartridges to an automatic firing weapon

• US 4,841,837 A
• Filed: 01/20/1987
• Issued: 06/27/1989
• Est. Priority Date: 01/22/1986
• Status: Expired due to Fees

• Current Assignee: Werkzeugmaschinenfabrik Oerlikon-Buhrle AG (Rheinmetall AG)
• Original Assignee: Werkzeugmaschinenfabrik Oerlikon-Buhrle AG (Rheinmetall AG)
• Inventors: Novet, Hanspeter
• Primary Examiner(s): Kyle, Deborah L.
• Assistant Examiner(s): Johnson, Stephen
• Application Number:
  US07/004,577
• Time in Patent Office: 889 Days
• Field of Search: 89/33.16, 89/35.01, 89/33.25, 89/33.17, 89/35.02, 198/853, 221/84
• US Class Current: 89/33.25
• CPC Class Codes: F41A 9/04 using endless-chain belts carrying a plurality of ammunition
• CPC Class Codes: F41A 9/76 Magazines having an endless-chain conveyor

Abstract

A cradle or bucket chain of an ammunition conveyor system serves to deliver cartridges from an ammunition magazine through a cartridge infeed channel to an automatic firing weapon. The cradle chain is able to easily move through a markedly curved cartridge infeed channel. This cradle chain is constructed such that there is not needed a separate guide track or rail and such that the cartridges can be easily withdrawn from or cammed out of the cradle chain in the vicinity of the automatic firing weapon. For this purpose the individual cradle elements of the cradle chain are each provided with a cartridge infeed cam for infeeding the cartridges to the automatic firing weapon. Each cradle element further possesses a sword or tongue member projecting into a guide groove of the cartridge infeed channel. Additionally, each cradle element of the cradle chain is guided by means of two oppositely situated walls of the cartridge infeed channel.

Claims

1. A cradle chain for delivering cartridges from an ammunition magazine, by means of a cartridge infeed channel having two oppositely situated walls and provided with guide groove means, to an automatic firing weapon, comprising:

a plurality of interlinked cradle elements;

each cradle element of said plurality of interlinked cradle elements comprising;

a cradle for accommodating a cartridge;

at least two lug means attached to said cradle for connecting said cradle element with a leading cradle element and with a trailing cradle element as seen in a predetermined direction of travel of said plurality of cradle elements;

infeed cam means of said cradle directly acting upon said cartridge for infeeding the cartridge into the automatic firing weapon;

a sword member projecting into the guide groove means of said cartridge infeed channel;

means for pivotably interconnecting two immediately neighboring cradle elements with one another and coacting with said lug means of said two neighboring cradle elements, which lug means interfit with one another;

said at least two lug means and said infeed cam means being located on two opposite sides of said cradle;

said cradle being guided on a first one of its two opposite sides at one of the oppositely situated walls of the cartridge infeed channel by said infeed cam means during movement of said cradle through said cartridges infeed channel; and

said cradle being guided on a second one of its two opposite sides at an other one of the oppositely situated walls of the cartridge infeed channel by one of said at least two lug means during the movement of said cradle through said cartridge infeed channel.

2. The cradle chain as defined in claim 1, wherein:

said first and second opposite sides of the cradle respectively constitute a top side and a bottom side;

said infeed cam means protruding beyond said top side of said cradle;

said top side of said cradle being confronted by said one wall of said two oppositely situated walls of said cartridge infeed channel; and

said bottom side of said cradle being confronted by said other wall of said two oppositely situated walls of said cartridge infeed channel.

3. The cradle chain as defined in claim 1, wherein:

said cradle defines an upstream side and a downstream side as viewed in the direction of travel of the cradle through said cartridge infeed channel; and

said infeed cam means and said one lug means being located on the upstream side of said cradle.

4. The cradle chain as defined in claim 3, wherein:

said at least two lug means containing an other lug means located at the downstream side of said cradle;

said other lug means containing a ball joint;

a pivot pin held by said ball joint;

said pivot pin interlinking said other lug means of said cradle and said one lug means of a neighboring downstream located cradle in the cradle chain; and

said one lug means containing an elongated hole for receiving said pivot pin.

5. The cradle chain as defined in claim 4, wherein:

said sword member protruding beyond a bottom side of said cradle in a region of said other lug means.