| 摘要 |
PURPOSE: A chain tension control apparatus in a grass guide system of the grass mower is provided, which controls tension regularly in order to prevent a chain from being stripped out of a chain gear. CONSTITUTION: A chain tension control apparatus in the grass guide system of the grass mower comprises: a frame fixing plate(1) classified into an upper plate, a wall plate and a lower plate; a hinge shaft(20) and a chain gear fixing-axis which are installed in the back and forward side; a brace(20b) in the center; an operation platform(2) equipped with a chain gear(3); an upper supporting projection(30a) supported in the operation platform; and an origin returning spring(30) equipped with the downward support base(30b) which is supported in the wall plate of the frame fixing plate. |
