Patent ID: 8079438
Filing Date: 2011-12-20
Classification: B60N

Abstract:
1. A seat for heavy equipment having a buffer means in forward and backward directions, which is mounted on a suspension plate and is located between left and right console boxes, the seat for heavy equipment comprising: a lower member mounted on the suspension plate; an upper member slidably mounted on the lower member in forward and backward directions of the equipment; a buffer means having one end fixed to the lower member and the other end fixed to the upper member to attenuate impact and vibration generated in the forward and backward directions of the equipment by relative movement of the upper member to the lower member; a tilting means including a frame mounted on the upper member, a hinge shaft fixed to the frame and having both ends fixed to rear parts of the console boxes, a driving shaft rotatably fixed to the frame and having both ends fixed to front parts of the console boxes, and a control handle connected to the driving shaft to adjust the height of the console boxes in accordance with its rotating direction; and a locking means for locking and unlocking forward and backward movement of the upper member against the lower member when a pusher installed on one side of the frame is manipulated; wherein in a main working mode of the equipment, a buffer function is performed through forward and backward movement of the upper member against the lower member, and when the main working mode of the equipment is released, the forward and backward movement of the upper member against the lower member is locked to release the buffer function; and a damper having a head part fixed to the rear of the upper member and a rod part fixed to a fixing piece formed in front of the lower member, the damper being arranged opposite to the first and second elastic members.