Abstract: On a revolving frame (5), an operating oil tank (15) located on the front side of an engine (8) is provided, and a fuel tank (16) located on the front side of the operating oil tank (15) is arranged. A mounting member (17) is provided on the lower side of the fuel tank (16) across a part of a swing cylinder (14). Between the operating oil tank (15) and the mounting member (17), a vertical restraining element (20) for restraining the fuel tank (16) in a front-rear direction and a vertical direction and a lateral restraining element (25) for restraining the fuel tank (16) in a left-right direction are detachably provided. Therefore, the fuel tank (16) can be restrained in two directions, that is, in the horizontal direction and the vertical direction.

Abstract: On a revolving frame (5), an operating oil tank (15) located on the front side of an engine (8) is provided, and a fuel tank (16) located on the front side of the operating oil tank (15) is arranged. A mounting member (17) is provided on the lower side of the fuel tank (16) across a part of a swing cylinder (14). Between the operating oil tank (15) and the mounting member (17), a vertical restraining element (20) for restraining the fuel tank (16) in a front-rear direction and a vertical direction and a lateral restraining element (25) for restraining the fuel tank (16) in a left-right direction are detachably provided. Therefore, the fuel tank (16) can be restrained in two directions, that is, in the horizontal direction and the vertical direction.

Abstract: An object of the present invention is to provide a construction machine which precipitates the removal of earth that is churned up onto a vehicle body from the vehicle body, which reduces transfer loads on a blade bracket, which improves the attachability of the blade bracket, and which achieves standardization of the blade bracket. The construction machine according to the present invention is constituted such that a frame of a crawler belt-type traveling body comprises a center frame, a pair of truck frames disposed on the outside of two side portions of the center frame, a connecting member which connects the center frame to the truck frames, and a blade bracket which is joined to the center frame and the connecting member.

Abstract: A left fore leg (31) is formed to shape by a casting means, integrating an inner joint portion (31A), an outer joint portion (31B) and an intermediate tubular portion (31C) into an unitary tubular structure. In this case, a joining end (31A1) of the inner joint portion (31A) as well as an outer joining end (31B1) of the outer joint portion (31B) is in the form of an open end of a rectangular shape. Accordingly, it becomes possible to cut the production cost of truck frame (11) and to form a longer welding bead around the outer periphery of the respective inner and outer joining ends (31A1) and (31B1) to enhance the joint strength between the inner joint portion (31A) and a center frame (12) as well as the joint strength between the outer joint portion (31B) and a side frame (22).

Abstract: A vehicular body oscillating mechanism (31) is provided between a frame (3) of an automotive vehicular body (2) and a stabilizer (18) thereby to sway the vehicular body (2) arcuately in a rightward and/or leftward direction about a pivot point (A) between right and left rear wheels (6, 7) when the stabilizer (18) is set on the ground for a load handling operation. This means that, after the stabilizer (18) is set on the ground for a load handling operation, the vehicular body (2) can be swayed arcuately laterally in a rightward and/or leftward direction together with a load lifting mechanism (12). Therefore, in a load handling operation, the load lifting mechanism (12) can be adjusted in a lateral direction to dump lifted freight goods exactly on a specified unloading spot.

Abstract: A construction machine where a load acting on a vehicle body during an operation is transferred to ensure the strength of the vehicle body, thereby improving reliability including welding reliability. In the construction machine, at least one of the height differences between an upper face or a lower face of the center frame at a joining portion between the center frame and the connecting member and an upper face or a lower face of a center joining portion of the connecting member is set respectively at a dimension that is approximately equal to or less than the thickness of an upper face plate or a lower face plate of the center frame.

Abstract: A construction machine where an operating load is transferred to a location having good rigidity, thereby ensuring the strength of a vehicle body and increasing the load-withstanding strength in relation to running loads. The frame of the lower traveling body of the construction machine comprising a hollow center frame having an upper plate with an attachment ring, a lower plate, and side plates that surrounding sides of the frame and that jut out from the attachment ring, and reinforcing ribs which connect the upper plate to the lower plate in the interior of the center frame beneath the attachment ring.

Abstract: A left fore leg (31) is formed to shape by a casting means, integrating an inner joint portion (31A), an outer joint portion (31B) and an intermediate tubular portion (31C) into an unitary tubular structure. In this case, a joining end (31A1) of the inner joint portion (31A) as well as an outer joining end (31B1) of the outer joint portion (31B) is in the form of an open end of a rectangular shape. Accordingly, it becomes possible to cut the production cost of truck frame (11) and to form a longer welding bead around the outer periphery of the respective inner and outer joining ends (31A1) and (31B1) to enhance the joint strength between the inner joint portion (31A) and a center frame (12) as well as the joint strength between the outer joint portion (31B) and a side frame (22).

Abstract: A vehicular body oscillating mechanism (31) is provided between a frame (3) of an automotive vehicular body (2) and a stabilizer (18) thereby to sway the vehicular body (2) arcuately in a rightward and/or leftward direction about a pivot point (A) between right and left rear wheels (6, 7) when the stabilizer (18) is set on the ground for a load handling operation. This means that, after the stabilizer (18) is set on the ground for a load handling operation, the vehicular body (2) can be swayed arcuately laterally in a rightward and/or leftward direction together with a load lifting mechanism (12). Therefore, in a load handling operation, the load lifting mechanism (12) can be adjusted in a lateral direction to dump lifted freight goods exactly on a specified unloading spot.

Abstract: An object of the present invention is to provide a construction machine in which an operating load is transferred to a location having good rigidity, thereby securing the strength of a vehicle body, and which is also capable of realizing an increase in the load-withstanding strength in relation to running loads, thereby improving reliability.

Abstract: An object of the present invention is to provide a construction machine which precipitates the removal of earth that is churned up onto a vehicle body from the vehicle body, which reduces transfer loads on a blade bracket, which improves the attachability of the blade bracket, and which achieves standardization of the blade bracket. The construction machine according to the present invention is constituted such that a frame of a crawler belt-type traveling body comprises a center frame, a pair of truck frames disposed on the outside of two side portions of the center frame, a connecting member which connects the center frame to the truck frames, and a blade bracket which is joined to the center frame and the connecting member.

Abstract: An object of the present invention is to provide a construction machine in which a load acting on a vehicle body during an operation is transferred appropriately, thereby ensuring the strength of the vehicle body and improving reliability, and in which welding reliability can also be improved.