US 12,114,613 B2
Felling unit and method of harvesting small-dimensioned wood
Jani Karvanen, Perheniemi (FI)
Appl. No. 17/049,222
Filed by Jani Karvanen, Perheniemi (FI)
PCT Filed Apr. 16, 2019, PCT No. PCT/FI2019/050309
§ 371(c)(1), (2) Date Oct. 20, 2020,
PCT Pub. No. WO2019/202214, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 20185376 (FI), filed on Apr. 20, 2018.
Prior Publication US 2021/0368697 A1, Dec. 2, 2021
Int. Cl. A01G 23/081 (2006.01); A01G 23/091 (2006.01)
CPC A01G 23/081 (2013.01) [A01G 23/091 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A method of harvesting small-dimensioned wood, the method comprising:
using, for the harvest of small-dimensioned wood, a movable forestry machine comprising at least one boom provided with a felling unit;
cutting, by means of a cutting device arranged in the felling unit, several standing small-dimensioned trunks;
temporarily storing the cut small-dimensioned trunks in a temporary storage in the felling unit;
transferring small-dimensioned trunks stored in the temporary storage to a storage station by means of the boom;
and wherein the cutting is carried out in the cutting device between two disc blades rotating in opposite directions relative to each other; and
the cutting of small-dimensioned trunks and their transfer to the temporary storage are performed simultaneously;
wherein the cut small-dimensioned trunks are transferred in a feed direction to the temporary storage by means of two spaced apart transfer shafts rotating in different directions and several transfer projections arranged on their outer surfaces, and
wherein the transfer shafts are rotatable in an opposite direction relative to the feed direction when the cut small-dimensioned trunks are unloaded from the temporary storage space such that the transfer projections are arranged to push small-dimensioned trunks out from the felling unit via a feeding gap.