A beltline reinforcement member for a door of a vehicle includes a body that extends along a longitudinal axis, between a first end and a second end. The body includes, an inner belt wall extending generally parallel to the longitudinal axis, an outer belt wall extending generally parallel to the longitudinal axis and spaced apart from the inner belt wall for receiving a window between the inner belt wall and the outer belt wall, a first end wall interconnecting the inner belt wall and the outer belt wall at the first end of the body, and a second end wall interconnecting the inner belt wall and the outer belt wall at the second end of the body. The inner belt wall, the outer belt wall, the first end wall, and the second end wall are integrally formed together as a single, unitary structure, such as by a casting process.

A vehicle door includes a door box with first and second walls and a second wall and a window frame module, in which a window frame, a first window shaft reinforcement and a second window shaft reinforcement are connected into a structural unit. The first window shaft reinforcement features a groove that accommodates an upper edge of the first wall. An upper edge of the second wall is covered by the second window shaft reinforcement.

Guide rails with which a window regulator is provided are respectively fixed to a module plate. The guide rails are fixed, together with the module plate, to an edge of an opening portion provided at inward frames from an outward side in a vehicle width direction. Attachment portions which are capable of afterward attaching outward frames to the inward frames are provided, and attachment portions which are capable of afterward attaching a door outer panel to a door frame comprising the inward frames and the outward frames are provided.

Vertical frame portions provided at both side portions of a door frame are a light-metal casting, plural connecting frames, which are a light-meal hollow extrusion molding, connect the vertical frame portions, the vertical frame portions are provided with protrusion portions which engage with inward connecting frames in a longitudinal direction, plural attachment portions which attach the outward connecting frames and the vertical frame portion are provided at different points in the longitudinal direction, and an outward connecting frame is provided with an upper rib which engages with an engagement recess portion provided at an upper portion of a door outer panel formed in a non-planar shape.

The vehicle door assembly includes an outer panel which has a rocker sill area and a beltline area. A reinforcement member, which is made of one or more pieces, is attached with the outer panel along at least a portion of an outer periphery of the outer panel. The door assembly further includes a module which is made as a single integral piece and is fixedly attached with the reinforcement member. The module has an inner beltline reinforcement and supports a pair of window channels and a window regulator for controllably raising and lowering a window between an open position and a closed position.

A vehicle door includes a first interlock coupled to an inner frame panel. A second interlock coupled to an inner trim panel. The first and second interlocks are separated to define a ready state. During an impact condition, the first and second interlocks selectively engage one another to define an impact state that resists deflection of the inner trim panel away from the inner frame panel.

An inner door panel (30) for a vehicle side door that includes an integrated side impact beam (70) formed as part of the door in a die casting process. The inner door panel (30) includes an outer frame having a top rail (38), a bottom rail (40), an inner side rail (42) and an outer side rail (44) defining a central opening (34). The impact beam (70) includes a main beam portion (72), a first end support portion (74) and a second end support portion (78). The first end support portion is formed to the side rail (42) and the second end support portion (78) is formed to the outer side rail (44), where the main beam portion (72) extends across the opening (34).

There are provided an outer member, an inner member connected to the outer member, door components including a door glass provided between the outer member and the inner member, and a reinforcement outer member extending in a vehicle longitudinal direction at an upper end portion of the inner member which is positioned on an outward side, in a vehicle width direction, of the door glass. The outer member includes an outer panel and an annular frame member which is joined to an outer peripheral portion of the outer panel by a hemming method, the reinforcement outer member is connected to the inner member at its front and rear end portions, and a seal outer member to seal a gap between the outer member and the door glass is attached to an upper frame portion fastened to the reinforcement outer member.

A belt molding and sensor combination for a door of a vehicle may include at least one sensor and a belt molding. The at least one sensor may be configured to emit signals upon the detection of an action intended to cause a door to open or close, and the at least one sensor may present a sensor outer surface. The belt molding may be configured to extend along at least a portion of a length of a door, and include a cap which presents an outer surface. The belt molding may be configured to be mounted on a door. The sensor outer surface may provide an extension of a cap outer surface, such that the sensor outer surface and the cap outer surface combine to provide an uninterrupted outer surface where the sensor outer surface and the cap outer surface abut against one another.

A door structure system for a vehicle includes an inner panel, an outer panel, and an outer belt reinforcement member. The outer belt reinforcement member extends in a fore-and-aft direction of the door structure. The outer belt reinforcement member creates an overlap joint with a hem flange portion of the inner panel. The outer belt reinforcement member includes touch-down feature that extends toward the inner panel and into contact with a bearing surface of the inner panel that is stepped down relative to the hem flange portion. The overlap joint and the touch-down feature both contribute to an increased upper frame stiffness of the door structure and improve sealing performance between the door structure and the vehicle body structure.