Abstract: A vehicle upper body structure includes an inner member and an outer member assembled together to form a roof side rail, a pillar and a roof cross rail joined together at a junction. The junction includes an inverted U-shaped reinforcement bracket having two legs joined to the inner member and a central web extending between the legs, and a reinforcement panel disposed between the inner and outer members and retained on an upper surface of the central web of the reinforcement bracket. The outer member is joined to an upper surface of the reinforcement panel.

Abstract: Vehicular upper-part structure includes left and right side roof rails located on opposite sides of a roof of a vehicle compartment, and a roof panel and roof arch member each joined at their opposite end portions to the side roof rails. Each of the side roof rails includes: an outer member; an inner member extending along the outer member, the inner member having a first vertical wall portion and a welding flange portion formed integrally with the first vertical wall portion, one of the opposite end portions of the roof arch member being joined to the welding flange portion by welding; and a second vertical wall portion formed by a stay member that is joined at its one end portion to the welding flange portion and supports a roof panel joint section having the roof panel joined thereto by welding.

Abstract: In a vehicular roof structure, a roof panel has a downwardly-bent roof panel flange formed on an inner edge portion thereof around the peripheral edge of a sunroof opening. Stiffener is disposed inwardly of the roof panel and having a stiffener flange that is welded to the reverse surface of the downwardly-bent roof panel flange at its portions corresponding to the corner portions. At the portions corresponding to the corner portions, the stiffener has a projecting portion projecting upward from the stiffener flange into abutment against the reverse surface of the roof panel in such a manner that a gap is formed between the reverse surface of the roof panel and a region of the stiffener around the projecting portion, and an adhesive is filled in the gap to fixedly adhere together the roof panel and the stiffener.

Abstract: Vehicular upper-part structure includes left and right side roof rails located on opposite sides of a roof of a vehicle compartment, and a roof panel and roof arch member each joined at their opposite end portions to the side roof rails. Each of the side roof rails includes: an outer member; an inner member extending along the outer member, the inner member having a first vertical wall portion and a welding flange portion formed integrally with the first vertical wall portion, one of the opposite end portions of the roof arch member being joined to the welding flange portion by welding; and a second vertical wall portion formed by a stay member that is joined at its one end portion to the welding flange portion and supports a roof panel joint section having the roof panel joined thereto by welding.

Abstract: A vehicle upper body structure includes an inner member and an outer member assembled together to form a roof side rail, a pillar and a roof cross rail joined together at a junction. The junction includes an inverted U-shaped reinforcement bracket having two legs joined to the inner member and a central web extending between the legs, and a reinforcement panel disposed between the inner and outer members and retained on an upper surface of the central web of the reinforcement bracket. The outer member is joined to an upper surface of the reinforcement panel.

Abstract: In a vehicular roof structure, a roof panel has a downwardly-bent roof panel flange formed on an inner edge portion thereof around the peripheral edge of a sunroof opening. Stiffener is disposed inwardly of the roof panel and having a stiffener flange that is welded to the reverse surface of the downwardly-bent roof panel flange at its portions corresponding to the corner portions. At the portions corresponding to the corner portions, the stiffener has a projecting portion projecting upward from the stiffener flange into abutment against the reverse surface of the roof panel in such a manner that a gap is formed between the reverse surface of the roof panel and a region of the stiffener around the projecting portion, and an adhesive is filled in the gap to fixedly adhere together the roof panel and the stiffener.

Abstract: A structural member having a closed section of vehicle formed by plate members of light alloy, such as a front pillar of vehicle formed by an outer panel, pillar stiffener and inner pillar made of light alloy, is reinforced by a reinforcing member made of extruded light alloy material which has a substantially same outer shape as an inner shape of the closed section of the structural member and is fitted into the closed section portion.