Provided is an upper slewing body comprising: an upper frame (11), a cab (12) including a bottom frame (16), a plurality of pillars including an outer pillar (15), and an entrance (10); an antivibration mount (14); a displacement restrainer restraining a cab displacement in a direction of rising away from the upper frame (11); and a reinforcing member (18) attached to a lower end of the outer pillar (15) for reinforcing a joint between the lower end and the bottom frame (16). The displacement restrainer includes a penetrating member (20) vertically penetrating the reinforcing member (18) and the bottom frame (16) and secured to the upper frame (11). The displacement restrainer and the reinforcing member (18) includes respective load transmitting surfaces for transmitting a load to each other above the joint between the bottom frame (11) and the outer pillar (15) when the cab (12) is displaced in the rising direction by a specific amount or more.
UPPER SLEWING BODY FOR USE IN CONSTRUCTION MACHINE
OBERER SCHWENKKÖRPER FÜR EINE BAUMASCHINE
CORPS SUPÉRIEUR TOURNANT POUR MACHINE DE CONSTRUCTION
2017-09-13
Patent
Electronic Resource
English