Strap buckle

Abstract

Strap buckle comprising a frame ( 4 ) with a reverse side and an upper side, which frame has an anchorage end (at 2 ) and a free end ( 7 ) and an opening ( 6 ) between those two ends, the side edges of which are designed as guides ( 10, 11 ) and the edge of which that lies adjacent to the free end forms a counter edge ( 8 ), as well as a locking means ( 5 ) arranged in the opening to be displaceable on the guides. The locking means ( 5 ) is provided on the guides ( 10, 11 ) with a clearance ( 16 ) so that it is slanted in relation to the guides when a pulling force is exerted on the strap ( 18 ) laid around the locking means. The locking means ( 5 ) is on its side lying at the reverse side of the frame designed with a lip ( 17 ) protruding towards the free end of the frame in order to, in cooperation with said counter edge ( 8 ), exert line pressure against the strap when the strap is loaded.

1 . Strap buckle, comprising a frame ( 4 ) with a reverse side and an upper side, which frame has an anchorage end (at  2 ) and a free end ( 7 ) and, between the two ends, an opening ( 6 ) having side edges designed as guides ( 10 ,  11 ) and the edge of which lying adjacent to the free end being a counter edge ( 8 ), as well as a locking means ( 5 ) arranged to be displaceable on the guides, whereby, in use, a strap ( 18 ) is inserted from the reverse side of the strap buckle between the locking means and the edge of the opening in the frame lying opposite to the counter edge, over the locking means and from the upper side down between the locking means and the counter edge, and wherein by a pulling force on the strap this will pull the locking means against the counter edge and thereby through clamp force prevent the strap from being drawn out from the strap buckle, characterized in that the locking means ( 5 ) is arranged on the guides ( 10 ,  11 ) with a clearance ( 16 ) so that it is slanted in relation to the guides when a pulling force is exerted on the strap ( 18 ) laid around the locking means, and in that the locking means ( 5 ) on its side lying at the reverse side of the frame is designed with a lip ( 17 ) protruding towards the free end of the frame in order to, in corporation with said counter edge ( 8 ), exert line pressure against the strap when the strap is loaded. 
     
     
         2 . Strap buckle according to  claim 1 , characterized in that the locking means ( 5 ) has an elongated body ( 12 ), a guide opening ( 13 ,  14 ) at each end of the elongated body and a slot ( 15 ) connecting the guide openings in the elongated body, wherein the walls forming the guide openings are flexible so that the slot can be enlarged for the mounting of the locking means on the frame.