Abstract: Rigidity of a frame of a working vehicle is improved by a simple structure and production costs are reduced by reducing the number of parts of a working vehicle. Pipes 66 are provided on both left and right sides at the center in the front-rear direction of a side frame 62, and each pipe 66 has a rectangular cross-section and penetrates an intermediate partition in the front-rear direction from a mast section 64 up to a transmission section. Tie-down holes are formed in a front face plate 61 to which the front end of a frame 9 is connected, and a plate 64b connected to a side frame 62 is provided at the bottom surface of each mast section 64 protruding outward from the side frame 62. Tanks installed on the working vehicle are suspended from the plate bodies 64b, and a lift arm installation boss provided at each mast section 64 is supported at both ends. A U-shaped reinforcement member 81 connects the upper surface of mast partition plate of a mast section 64 and left and right bosses.

Abstract: The purpose of the present invention is to construct cheaply a light and rigid bonnet of a working vehicle having a working machine such as a loader or a tractor without providing a reinforcement member in an opening of the bonnet, and to improve the external appearance of the bonnet and maintainability of an engine room. A bonnet has rear and lower portions thereof that are opened and an opening is provided in a front or side surface of the bonnet so as to provide an intake grille. The whole bonnet besides the opening is formed hollowly. A front guard is embedded in the opening provided at a center of a front end of the bonnet.

Abstract: A canopy of a working vehicle has, therein, a forwardly and reversely rotatable seat and enables an increase in the rigidity of a canopy frame with a low cost and simple structure. Frames forming the back part of the canopy are disposed radially from the rotating axis of the seat in the canopy in plan view and bent toward the inside of the canopy. The heights of the bent points of the frames are generally aligned with the height of the seat surface of the seat and disposed in the canopy.

Abstract: A front guard (10) is provided for a working vehicle. The front guard (10) is attached to a bracket (11) fixed at the front of a machine body frame and is placed in front of a bonnet (30). The front end of the front guard (10) is located rearward from the front end of front wheels (8) of the working vehicle. The front guard does not project forward of the machine body so that the guard does not spoil workability, whereby the guard is easy to be assembled and has high strength.

Abstract: A working vehicle includes a vehicle frame having a front section and a bonnet arranged on the front section. A first engagement mechanism for the bonnet is provided at a front section of the vehicle frame and a second engagement mechanism is provided at a front lower end section of the bonnet. A front face of the vehicle frame includes a cutout section and a cover doubling as a seal member for the bonnet is provided at the cutout section. When the first and second engagement mechanisms are engaged, the first and second engagement mechanisms are positioned on one side of the cutout section and a portion of the cover that covers the cutout section is positioned on an opposite side of the cutout section. The construction can provide the bonnet with high assembly accuracy.

Abstract: Rigidity of a frame of a working vehicle is improved by a simple structure and production costs are reduced by reducing the number of parts of a working vehicle. Pipes 66 are provided on both left and right sides at the center in the front-rear direction of a side frame 62, and each pipe 66 has a rectangular cross-section and penetrates an intermediate partition in the front-rear direction from a mast section 64 up to a transmission section. Tie-down holes are formed in a front face plate 61 to which the front end of a frame 9 is connected, and a plate 64b connected to a side frame 62 is provided at the bottom surface of each mast section 64 protruding outward from the side frame 62. Tanks installed on the working vehicle are suspended from the plate bodies 64b, and a lift arm installation boss provided at each mast section 64 is supported at both ends. A U-shaped reinforcement member 81 connects the upper surface of mast partition plate of a mast section 64 and left and right bosses.

Abstract: A front guard 10 of a working vehicle 1 is mounted onto a bracket 11 fixed on a front portion of a vehicle body frame 9 so as to be disposed in front of a bonnet 30. A top of front guard 10 slightly projects upward from an eyeshot of an operator sitting on an operation seat 4, the eyeshot being directed to a front upper portion of bonnet 30, so that the top of front guard 30 can be seen by the operator and does not obstruct the operator's ken for working.

Abstract: With regard to a revolving working machine that a revolving body is provided on a traveling unit, rearward projection length of the revolving body from revolution center is substantially the same as distance from the revolution center to a side end of a crawler belt, and an engine is cooled by discharging air, an exhaust port through which cooling air is discharged is provided in a bonnet covering the engine, and air guide plates are provided upward in the exhaust port.

Abstract: An openably constructed bonnet structure for a working vehicle 1 in which an engagement mechanism 31 for a bonnet 30 are provided at a front section of a vehicle frame 9, on which front section the bonnet 40 is placed, and at a front lower end section of the bonnet 30; a cutout section 61b through which the engagement mechanism 31 of the bonnet 30 is viewable is provided in the front face of the vehicle frame 9; and a cover 36 doubling as a seal member for the bonnet 30 is provided at the cutout section 61b. Furthermore, the cover 36 for covering the cutout section 61b is extended to the front face of the frame, and a key lock is provided on the cover 36. The construction can provide the bonnet with high assembly accuracy.

Abstract: The present invention aims to increase the storability around the operator's seat and reduce labor for reverse rotation in a work vehicle in which the operator's seat is formed to be reversely rotated. The operator's seat support member is disposed on the machine frame of the work vehicle so that the operator's seat can be rotated on the support member, hydraulic hoses are held along the side face of the support member, a storage part rotated together with the operator's seat is installed on the front lower seat surface of the operator's seat, and that the rotating center axis of the operator's seat at the sliding center of the operator's seat is approximately on the seat index point of the operator's seat.

Abstract: The purpose of the present invention is to construct cheaply a light and rigid bonnet of a working vehicle having a working machine such as a loader or a tractor without providing a reinforcement member in an opening of the bonnet, and to improve external appearance of the bonnet and maintainability of an engine room. A bonnet, wherein rear and lower portions thereof are opened and an opening is provided in front or side surface of the bonnet so as to provide an intake grille, the whole bonnet besides the opening is formed hollowly. A front guard is embedded in the opening provided at a center of front end of the bonnet.

Abstract: A canopy of a working vehicle having, therein, a forwardly and reversely rotatable seat and enabling an increase in the rigidity of a canopy frame with a low cost and simple structure, wherein frames forming the back part of the canopy are disposed radially from the rotating axis of the seat in the canopy in plan view and bent toward the inside of the canopy, and the heights of the bent points of the frames are generally aligned with the height of the seat surface of the seat and disposed in the canopy.

Abstract: A cabin of a rearward small-turn backhoe having a portion of a turn frame (2) excluding a working machine mounting part (1) formed generally in circular shape and formed so that the diameter thereof is stored generally within the width of a traveling device (1), wherein the rear part of the cabin (8) is formed in a curved shape generally along the outer peripheral form of the turn frame (2) as viewed from a horizontal plane, at least a side face of the cabin is formed in a polygonal shape, and two faces of the polygonal shape adjacent to each other are formed in a foldable door (15a, 15b), whereby an indoor space can be increased over a conventional one to improve comfortability, and a controllability can be improved because a lever operation can be performed in a roomy space.

Abstract: A cabin of a rearward small-turn backhoe having a portion of a turn frame (2) excluding a working machine mounting part (1) formed generally in circular shape and formed so that the diameter thereof is stored generally within the width of a traveling device (1), wherein the rear part of the cabin (8) is formed in a curved shape generally along the outer peripheral form of the turn frame (2) as viewed from a horizontal plane, at least a side face of the cabin is formed in a polygonal shape, and two faces of the polygonal shape adjacent to each other are formed in a foldable door (15a, 15b), whereby an indoor space can be increased over a conventional one to improve comfortability, and a controllability can be improved because a lever operation can be performed in a roomy space.