Patent ID: 8596488

Claim:
A tank to be provided in a construction machine, comprising: a tank body having a first wall portion, a first opposing wall portion opposing to the first wall portion in a first direction, a second wall lying between the first wall portion and the first opposing wall portion, and a second opposing wall portion lying between the first wall portion and the first opposing wall portion and opposing to the second wall in a second direction crossing the first direction; at least one first reinforcement member disposed across the first wall portion and the first opposing wall portion, the at least one first reinforcement member having opposite ends welded to the first wall portion and the first opposing wall portion, respectively; at least one second reinforcement member disposed across the second wall and the second opposing wall portion while spatially crossing the at least one first reinforcement member, the at least one second reinforcement member having opposite ends welded to the second wall and the second opposing wall portion, respectively; and a first attachment plate fixed to a basal end of the at least one first reinforcement member in a flange shape and a second attachment plate fixed to a basal end of the at least one second reinforcement member in a flange shape, and wherein: the at least one first reinforcement member and the first attachment plate constitute a first reinforcement assembly; the at least one second reinforcement member and the second attachment plate constitute a second reinforcement assembly; each of the first wall portion and the first opposing wall portion is formed with a first fixing hole through which the at least one first reinforcement member is inserted; each of the second wall and the second opposing wall portion is formed with a second fixing hole through which the at least one second reinforcement member is inserted; the first reinforcement assembly is fixed to the tank body with the insertion of the at least one first reinforcement member through the first fixing holes of the first wall portion and the first opposing wall portion, the first attachment plate being welded to an outer surface of the first wall portion, the distal end of the at least one first reinforcement member being welded to the first opposing wall portion; and the second reinforcement assembly is fixed to the tank body with the insertion of the at least one second reinforcement member through the second fixing hole of the second wall and the second opposing wall portion, the second attachment plate being welded to an outer surface of the second wall portion, the distal end of the at least one second reinforcement member being welded to the second opposing wall portion.