Patent ID: 7665801
Filing Date: 2010-02-23
Classification: E02F

Abstract:
1. A structure of an upper frame 100 for supporting a cabin of construction machinery, including a center frame 120 having a lower plate 122 and a lateral plate 124 vertically mounted on the lower plate 122 and fitted with operation devices comprising at least one of a boom 3 , an arm 5 , and a bucket 6 , a left frame 130 mounted on the left side of the center frame 120 comprising a side channel 132 extended in a longitudinal direction of the center frame 120 and a plurality of side frames 134 for connecting the center frame 120 with the side channel 132 , the upper frame structure 100 further comprising: a first cabin supporting structure a second cabin supporting structure wherein the first cabin supporting structure a vertical member and wherein the second cabin supporting structure