Breechblock drive for a weapon

• US 8,726,779 B2
• Filed: 06/01/2012
• Issued: 05/20/2014
• Est. Priority Date: 12/04/2009
• Status: Expired due to Fees

• Current Assignee: Rheinmetall Waffe Munition GmbH (Rheinmetall AG)
• Original Assignee: Rheinmetall Waffe Munition GmbH (Rheinmetall AG)
• Inventors: Schneider, Hubert, Buhl, Rainer
• Primary Examiner(s): Troy, Daniel J
• Application Number:
  US13/486,554
• Publication Number:
  US 20120318127A1
• Time in Patent Office: 718 Days
• Field of Search: 89/9, 89/11, 891/85, 89/330.1
• US Class Current: 89/33.01
• CPC Class Codes: F41A 7/08 Drives for externally-powered guns, i.e. drives for moving the breech-block or bolt by an external force during automatic firing
• CPC Class Codes: F41A 9/50 External power or control systems
• CPC Class Codes: F41A 9/51 Boosters, i.e. externally-powered motors

Abstract

A breech ammunition drive for the breech of a weapon using an external drive is provided. A long connecting rod converts the rotational movement into a linear breech movement, and a short connecting rod moves the breech. The rear end or pin of the long connecting rod is fixed on or in the drive, and the front end engages onto a rack that is fixed to the weapon and onto a slider of the breech support or the breech via a toothing. The short connecting rod is retained in the slider and guided by same, and the connecting rod engages into a transverse slot introduced above the connecting rod and below the breech support. The short connecting rod is guided in the slot fixed to the weapon, the slot having a rear end point into which the connecting rod is inserted.

Claims

1. A breechblock feed for a breechblock of a weapon, comprising:

the breechblock;

a breechblock support of the breechblock;

a drive; and

a long connecting rod and a short connecting rod, the long connecting rod and the short connecting rod being functionally connected to the drive, the long connecting rod having a back end fastened to the drive and a front end connected to a rack via toothing, the rack being fixed with respect to the weapon, and the long connecting rod front end being connected to a slider of the breechblock, the short connecting rod being mounted on the slider and engaging a transverse slot located in a structure fixed with respect to the weapon and above the long connecting rod and below the breechblock support.

2. The breechblock feed according to claim 1, wherein the short connecting rod is guided in the transverse slot the transverse slot having a rear end point into which the short connecting rod is pushed.

3. The breechblock feed according to claim 2, wherein the short connecting rod is pivotable in the rear end position in the end point of the transverse slot.

4. The breechblock feed according to claim 1, wherein the breechblock support and the breechblock are structurally connected to one another by a carrier that is functionally attached in a fixed manner to the breechblock.

5. The breechblock feed according to claim 4, further comprising a locking slot integrated into the breechblock support, into which the carrier is adapted to shift to lock the breechblock.

6. The breechblock feed according to claim 5, wherein the locking slot has a curved locking path configured to guide the carrier to rotate the breechblock about a longitudinal axis.

7. The breechblock feed according to claim 1, wherein the drive is a disk.

8. The breechblock feed according to claim 7, wherein the long connecting rod serves to convert the rotary motion into a linear breechblock motion, and the short connecting rod serves to move the breechblock or the breechblock support.

9. A weapon comprising:

a breechblock feed according to claim 1; and

a rear-locking breechblock.

10. The breechblock feed according to claim 1, wherein the breechblock feed is a rear-locking breechblock.

11. A breechblock feed for a breechblock of a weapon, comprising

a drive;

a long connecting rod having a first end connected to the drive and a second end having a toothed wheel, the toothed wheel being mounted between a first rack fixed relative to the weapon and a second rack on a slider; and

a short connecting rod having a first end pivotably mounted on the slider and a second end engaging a slot fixed relative to the weapon,

wherein the slider supports a breechblock, and

wherein the slider and breechblock are mounted such that the slider is capable of moving independently of the breechblock when the second end of the short connecting rod is outside the slot fixed relative to the weapon.

12. The breechblock feed according to claim 11, including a cam surface for shifting the second end of the short connecting rod out of the slot fixed relative to the weapon.

13. The breechblock feed according to claim 12, wherein the breechblock is slideably mounted in the breechblock support, wherein the breechblock includes a carrier slidably received in a guide slot of the breech block support, and wherein the guide slot includes a curved portion for rotating the breechblock about a longitudinal axis as the carrier moves along the curved portion.