DEVICE FOR LUBRICATION OF SAW CHAINS Russian patent published in 2016 - IPC B27B17/12 

FIELD: woodworking industry.

SUBSTANCE: invention relates to woodworking, particularly to devices for lubrication of saw chains. Device contains a vessel for grease and means to feed grease through a system of tubes in saw chain. Means for feeding grease contains hydraulic circuit and is designed to drive hydraulic system of saw. Hydraulic device comprises a piston housing, valve body and a dispenser, which is connected to valve body. Piston and valve body are connected to a grease lubricant. When hydraulic pressure of saw increases, piston housing is adapted to move grease from grease tank, shifting at same time valve body from a first position to a second position so that lubricant is fed into dispenser. When hydraulic pressure drops, valve body is adapted to return to another position in which dispenser is adapted to open, allowing grease to pass through tubes into chain saw.

EFFECT: simple design, reduced loss of lubricating material.

7 cl, 1 dwg