| 主权项 |
1. A weighing scale for forklift (10) to be installed between the fork carriage and fork thereto for weighing loads as they are lifted comprising;
(a) a stationary first member (12) mountable on the fork carriage; (b) a movable second member (48) connectable to the fork; (c) a pair of substantially identical linkage elements (36, 46) each interconnecting said first member (12) and second member (48) at separate positions thereof such that said first member (12) and second member (48) are disposed in vertically parallel spaced apart relationship wherein each linkage element (36, 46) has a general four sided configuration comprising a pair of parallel opposed shafts (38) connected respectively at their respective axially terminal ends by a pair of link arms (40) so that each linkage element has one shaft installed on said first member (12) and another shaft installed on said second member (48) in order that said second member (48) moves in a single vertical plane about said stationary first member (12) with low frictional forces,
wherein said first member (12) is an elongate structure of substantially uniform U-shaped cross section along the length thereof having a top plate (14), bottom plate (16) and side plates (20) which extend forwardly,wherein said second member (48) is an elongate structure having a top plate (50), bottom plate (52) and two vertical side plates (54), (d) a load cell (28) installed on said first member (12) and being accessible by said second member (48),
wherein said load cell (28) is located between the first member (12) and the second member (48) and is surrounded by the various top plates (14), bottom plates (16) and side plates (20) of said first member (12) and said second member (48), and (e) a means (60) incorporated in said second member (48) adapted to work cooperatively with said load cell (28) to register any vertical movement thereto and transform the registered data into weight of the load being lifted by the fork. |
