US 7,320,635 B2
Device for sharpening chain saw teeth
Drago Cendak, Alietova 10, Izola 6310 (Slovenia)
Appl. No. 10/581,467
PCT Filed Nov. 25, 2004, PCT No. PCT/SI2004/000039
§ 371(c)(1), (2), (4) Date Jun. 01, 2006,
PCT Pub. No. WO2005/053889, PCT Pub. Date Jun. 16, 2005.
Claims priority of application No. P-200300290 (SI), filed on Dec. 01, 2003.
Prior Publication US 2007/0167121 A1, Jul. 19, 2007
Int. Cl. B24B 19/00 (2006.01); B24B 5/00 (2006.01); B24B 37/00 (2006.01); B23D 63/12 (2006.01)
U.S. Cl. 451—419  [451/439; 451/143; 76/40] 9 Claims
OG exemplary drawing
 
1. A device for sharpening the teeth of a chain of a chain saw blade, the device being portable and usable the in field, and where the chain is not to be taken off the chain saw blade while being sharpened; wherein a spatial curved carrier (12) is fixed at one end, by means of a fastening means (11), to an upper end of one of two arms (2, 3) originating in a body (1), so that said carrier (12) can be optionally shifted on a circular arch along said fastening means (11), said body is provided over the entire length thereof with a groove (5) which penetrates the body (1) in an area between said arms (2, 3) and is connected to a gap (4), a free end of the carrier (12) is connected by a mounting (13) to a swivel arm (14) which lies essentially in a plane being predominantly parallel to the plane of the carrier (12), an actuator (15) with a grinding wheel (16) is associated with the free end of the swivel arm (14), wherein a left half (25) of the body (1) is formed with a click bulge (27) on the outside thereof, which is, on a side facing away from a chain blade (6), said click bulge intended for cooperation with a click spring guard (28), an adapter (29) is associated with an inside of the left half (25) of the body (1), said adapter reaching a chain (7) area with an inwardly bent flange (30) provided at a free end thereof, wherein a flexible adapter (31) is associated with the inside of the right half (26) of the body (1), said flexible adapter (31) reaching the chain (7) area with an inwardly bent flange (32) provided at the free end thereof; wherein the left half (25) comprises a distance bolt (33) with which the adapter (29) is moved towards or away from the chain blade, and that a first pair of distance bolts (34) extend through the right half (26) and through the flexible adapter (3 I), the right half (26) of the body (1) is formed with a recess (35) in an upper part thereof and in an area between the arms (2,3) of the body (1), a pressure member (37) which can be swung about an adjusting screw (36) rests in said recess, an adjusting nut (36′) mates with said adjusting screw (36) and determines a sharpening depth in a horizontal direction, wherein the pressure member (37) comprises a pair of distance bolts (38) arranged substantially perpendicular to the chain blade (6), when the sharpening device is ready to operate, a second pair of distance bolts (38) pressed against the flexible adapter (31) with ends thereof; and wherein the click spring guard (28) is located on the pressure member (37) and comprising a pair of shoulders (39, 40) arranged in a way that one of the shoulders holds a tooth (8) to be sharpened when the click spring guard (28) cooperates with the click bulge (27).