Patent ID: 6854951
Filing Date: 2005-02-15
Classification: E02F,Y10S

Abstract:
1. A vertical lift type arm device in which rear end parts of a set of left and right lift arms are pivotably attached to a set of left and right upright members, which are vertically provided at a rear part of a main frame of a working vehicle, via a set of left and right rear links, comprising: a set of left and right control links each having three connection shaft holes; a set of left and right central mounting parts which are provided at a center part of said main frame; and a set of left and right mounting parts which are provided at rear parts of said lift arms and extend downward, wherein front end parts of said control links and said central mounting parts are pivotably attached to each other; wherein center parts of said control links and lower end parts of said mounting parts are pivotably attached to each other; and wherein connection axes of said control links and said central mounting parts are provided at a same height as or at a higher position than connection axes of lower end parts of said rear links and said main frame.