Patent ID: 9248764
Filing Date: 2016-02-02
CPC Classification: B60N,E02F

Claim Text:
1. An apparatus for adjusting the height of armrests installed on the left and right sides of an operator's seat for a construction machine, the apparatus comprising: an inner rail mounted on both sides of the operator's seat and including a guide rail part which has one or more engagement projections are formed thereon in such a manner as to be spaced apart from each other at equal intervals in a vertical direction; an outer rail coupled to the inner rail in a vertically slidable manner and mounted on both sides of the armrests; a locker rotatably mounted on an outer surface of the outer rail and having one or more locking grooves formed on a lower end thereof so as to allow the engagement projections of the inner rail to be fittingly engaged therein; an adjustment lever fixed to the locker and having a handle grip formed at one side thereof so that when the handle grip is pressed to cause the locker to be rotated about a fixing pin, the engagement projections are disengaged from the locking grooves; and a connection member configured to connect the lower end portion of the locker to a lower end portion of the outer rail.