Disclosed herein are embodiments of a reinforcement or brace that can be installed on the tailgate of a vehicle. The reinforcement can provide structural support for heavier mounted objects, such as tires, as well as allowing for different attachment points. Advantageously, the tailgate hinge does not need to be removed or replaced.

A rigidity-improved vehicle panel door includes an external panel positioned, toward the outside of a vehicle, in a door of the vehicle, an internal panel, an external edge portion of the internal panel being joined to the external panel, and the internal panel being positioned, toward the interior of the vehicle, in the door, and a rigid structure in which a plurality of support members disposed in a longitudinal direction of the vehicle are coupled to a plurality of reinforcement members to form the shape of a quadrangle, the plurality of reinforcement members being provided on a front end portion of the door and a rear end portion of the door.

A rigidity-improved vehicle panel door includes an external panel positioned, toward the outside of a vehicle, in a door of the vehicle, an internal panel, an external edge portion of the internal panel being joined to the external panel and the internal panel being positioned, toward the interior of the vehicle, in the door of the vehicle, support members disposed in a longitudinal direction of the vehicle, reinforcement members coupled to a front end portion and a front end portion, respectively, of the door, joint members superposed and coupled to the reinforcement members, respectively and coupled to the support members to surround external surfaces of the support members.

A vehicle includes a body that defines a front door opening, and includes an A-pillar framing the front door opening, and a door over the front door opening. The front door includes an inner door panel and an outer door panel defining an interior door cavity therebetween. The vehicle also includes an impact beam and a transfer member housed in the interior door cavity. The impact beam has a forward end that laterally overlaps the A-pillar. The transfer member laterally overlaps the A-pillar in common with the forward end of the impact beam, and faces the inner door panel from laterally between the forward end of the impact beam and the inner door panel. When the vehicle experiences a side impact event, the A-pillar assumes side impact energy via transfer from the forward end of the impact beam through the transfer member.

Described herein is a structure of a motor-vehicle door including a multi-thickness metal sheet pressed and shaped to define: a hinge area configured for fastening one or more hinges for connection to the body of a motor vehicle; a panel area configured for receiving an upholstery-trim element for the door; and a frame area configured for receiving a window of the door. The above multi-thickness metal sheet has a first thickness in said hinge area, a second thickness in said panel area, and a third thickness in said frame area.

A vehicle back door main body includes (1) an outer upper panel made of carbon-fiber-reinforced-plastic that is joined to an upper portion of an inner panel made of carbon-fiber-reinforced-plastic, and (2) an outer lower panel made of a resin that is weaker than the carbon-fiber-reinforced-plastic and that is joined to a lower portion of the inner panel. A first portion of the inner panel is reinforced by the outer upper panel. A second portion of the inner panel has a lower strength than the first portion. A boundary between the first and second portions, at which there is a strength difference, is located adjacent to a small window opening in the vehicle back door.

Disclosed herein are embodiments of a reinforcement or brace that can be installed on the tailgate of a vehicle. The reinforcement can provide structural support for heavier mounted objects, such as tires, as well as allowing for different attachment points. Advantageously, the tailgate hinge does not need to be removed or replaced.

An opening and closing device includes an upper arm and a lower arm spaced apart in an up-and-down direction and extend between a vehicle door and a vehicle body, a connecting member configured to connect a first end portion of the upper arm and a first end portion of the lower arm, a body-side upper hinge and a body-side lower hinge attached to the vehicle body so as to be spaced apart in the up-and-down direction and support the connecting member rotatably, a door-side upper hinge attached to an inner panel of the vehicle door to support a second end portion of the upper arm rotatably, and a door-side lower hinge attached to the inner panel of the vehicle door to support a second end portion of the lower arm rotatably.

Disclosed herein are embodiments of a reinforcement or brace that can be installed on the tailgate of a vehicle. The reinforcement can provide structural support for heavier mounted objects, such as tires, as well as allowing for different attachment points. Advantageously, the tailgate hinge does not need to be removed or replaced.

A vehicle includes a body that defines a front door opening, and includes an A-pillar framing the front door opening, and a door over the front door opening. The front door includes an inner door panel and an outer door panel defining an interior door cavity therebetween. The vehicle also includes an impact beam and a transfer member housed in the interior door cavity. The impact beam has a forward end that laterally overlaps the A-pillar. The transfer member laterally overlaps the A-pillar in common with the forward end of the impact beam, and faces the inner door panel from laterally between the forward end of the impact beam and the inner door panel. When the vehicle experiences a side impact event, the A-pillar assumes side impact energy via transfer from the forward end of the impact beam through the transfer member.