US 7,587,853 B2
System for fastening the barrel of a rifle having a replaceable barrel
Juha Aalto, Riihimäki (Finland)
Assigned to Sako Oy, Riihimaki (Finland)
Appl. No. 10/588,988
PCT Filed Feb. 10, 2005, PCT No. PCT/FI2005/050021
§ 371(c)(1), (2), (4) Date Jun. 18, 2007,
PCT Pub. No. WO2005/075930, PCT Pub. Date Aug. 18, 2005.
Claims priority of application No. 20040200 (FI), filed on Feb. 10, 2004.
Prior Publication US 2008/0066361 A1, Mar. 20, 2008
Int. Cl. F41A 21/00 (2006.01)
U.S. Cl. 42—76.01  [42/75.01] 7 Claims
OG exemplary drawing
 
1. A system for fastening a replaceable barrel onto a rifle, the system comprising:
a lock frame having an opening into which a barrel socket can be pushed into position and locked with a bolting device, wherein the bolting device comprises a barrel block stop provided within the lock frame, and a groove in the socket of the barrel into which groove the barrel block stop is inserted when the barrel is clamped into locked position,
a screw is provided for clamping the socket of the barrel in the lock frame against the barrel block stop; and
on a side of the lock frame opposite the barrel block stop, the lock frame comprises a spring-loaded support plate, under which support plate, the screw is provided, and the screw is tightened from an underside of the gun for clamping the socket of the barrel in the lock frame upwardly against the barrel block stop.