An embodiment upper body structure for a vehicle body includes a front body configured to be mounted on a front portion of an under body of the vehicle body, the front body including front side sills respectively disposed at two opposite sides thereof based on a vehicle width direction and center pillars respectively coupled to the front side sills, each of the center pillars including a quadrangular closed cross-section defined by coupling a center pillar outer member and a center pillar inner member and an outer flange portion extending in a forward/rearward direction of the vehicle body.

An embodiment upper body structure for a vehicle body includes a front body configured to be mounted on a front portion of an under body of the vehicle body, the front body including front side sills respectively disposed at two opposite sides thereof based on a vehicle width direction and center pillars respectively coupled to the front side sills, each of the center pillars including a quadrangular closed cross-section defined by coupling a center pillar outer member and a center pillar inner member and an outer flange portion extending in a forward/rearward direction of the vehicle body.

A roof assembly for a work vehicle includes a grab rail and a grab rail support coupled to the grab rail. The grab rail support is configured to couple to a roof structure of the roof assembly, the grab rail support is configured to support the grab rail on the roof structure, the grab rail support has a hollow passage configured to facilitate passage of a wire, and the grab rail support has an inlet to the hollow passage configured to be positioned at an interior of the roof structure to enable the wire to extend from the interior of the roof structure into the hollow passage.

A roof assembly for a work vehicle includes a grab rail and a grab rail support coupled to the grab rail. The grab rail support is configured to couple to a roof structure of the roof assembly, the grab rail support is configured to support the grab rail on the roof structure, the grab rail support has a hollow passage configured to facilitate passage of a wire, and the grab rail support has an inlet to the hollow passage configured to be positioned at an interior of the roof structure to enable the wire to extend from the interior of the roof structure into the hollow passage.

A roof assembly for a work vehicle includes a roof panel having a vertical peak positioned longitudinally between a forward end and a rearward end of the roof panel. In addition, the roof panel includes a forward surface extending from the vertical peak to the forward end of the roof panel, and the roof panel includes a rearward surface extending from the vertical peak to the rearward end of the roof panel. The roof panel also includes a ridge extending around a periphery of the roof panel. The ridge has a first gap positioned at the rearward end of the roof panel, a second gap positioned at the forward end of the roof panel, and a third gap positioned at a first lateral end of the roof panel. In addition, the roof panel does not include a channel extending along the roof panel.

A roof assembly for a work vehicle includes a roof panel having a vertical peak positioned longitudinally between a forward end and a rearward end of the roof panel. In addition, the roof panel includes a forward surface extending from the vertical peak to the forward end of the roof panel, and the roof panel includes a rearward surface extending from the vertical peak to the rearward end of the roof panel. The roof panel also includes a ridge extending around a periphery of the roof panel. The ridge has a first gap positioned at the rearward end of the roof panel, a second gap positioned at the forward end of the roof panel, and a third gap positioned at a first lateral end of the roof panel. In addition, the roof panel does not include a channel extending along the roof panel.

An automobile body structure is provided in which a carbon fiber-reinforced plastic cabin formed of a bathtub shape includes an inverted U-shaped roll bar providing a connection between front parts of a pair of left and right side frames, and a pair of left and right roll bar-supporting bars connecting an upper portion of the roll bar to rear parts of the pair of left and right side frames. Since a rear part of a roof panel and a front part of a tailgate panel are supported on a mounting bracket provided on the roll bar-supporting bar, it is possible, by changing the fore-and-aft position of the mounting bracket, to freely set the rear end position of the roof panel and the front end position of the tailgate panel and, moreover, it is possible to strongly support the roof panel and the tailgate panel.

An automobile body structure is provided in which a carbon fiber-reinforced plastic cabin formed of a bathtub shape includes an inverted U-shaped roll bar providing a connection between front parts of a pair of left and right side frames, and a pair of left and right roll bar-supporting bars connecting an upper portion of the roll bar to rear parts of the pair of left and right side frames. Since a rear part of a roof panel and a front part of a tailgate panel are supported on a mounting bracket provided on the roll bar-supporting bar, it is possible, by changing the fore-and-aft position of the mounting bracket, to freely set the rear end position of the roof panel and the front end position of the tailgate panel and, moreover, it is possible to strongly support the roof panel and the tailgate panel.

An outdoor advertisement structure on a bus roof of the present invention can hide the untidiness of a heating, ventilation and air conditioning (HVAC) system and the like mounted on the bus roof by a rectangular-shaped advertisement structure (10) since the advertisement structure (10) of which upper and lower parts are open and the four surrounding surfaces thereof are connected, is mounted on a bus roof (1) to cover an HVAC system (3) mounted on the bus roof (1) such that the HVAC system (3) is not exposed to the outside and to simultaneously provide a mounting area for traffic information notification and advertisements, wherein a front light guide panel (20) and a side light guide panel (22) for traffic information notification and advertisement are respectively mounted on a front part (12) and both side parts (14) of the advertisement structure (10), and thereby providing a balance between the bus and a cityscape by finishing the exterior appearance state of the bus roof (1) to be relatively aesthetically pleasing, increasing the advertising efficiency by minimizing advertisements hidden by nearby vehicles or road facilities, enabling the advertisements to be easily identified with the naked eye regardless of the time of day and focusing the attention of consumers at a new advertising height, and maximizing advertising effects by attaching large advertisements of advertising text, photographs and the like onto an upper plate material (30) covering the upper opening of the advertisement structure (10).

An outdoor advertisement structure on a bus roof of the present invention can hide the untidiness of a heating, ventilation and air conditioning (HVAC) system and the like mounted on the bus roof by a rectangular-shaped advertisement structure (10) since the advertisement structure (10) of which upper and lower parts are open and the four surrounding surfaces thereof are connected, is mounted on a bus roof (1) to cover an HVAC system (3) mounted on the bus roof (1) such that the HVAC system (3) is not exposed to the outside and to simultaneously provide a mounting area for traffic information notification and advertisements, wherein a front light guide panel (20) and a side light guide panel (22) for traffic information notification and advertisement are respectively mounted on a front part (12) and both side parts (14) of the advertisement structure (10), and thereby providing a balance between the bus and a cityscape by finishing the exterior appearance state of the bus roof (1) to be relatively aesthetically pleasing, increasing the advertising efficiency by minimizing advertisements hidden by nearby vehicles or road facilities, enabling the advertisements to be easily identified with the naked eye regardless of the time of day and focusing the attention of consumers at a new advertising height, and maximizing advertising effects by attaching large advertisements of advertising text, photographs and the like onto an upper plate material (30) covering the upper opening of the advertisement structure (10).