A door hinge device for a vehicle is capable of facilitating two doors to be simultaneously or independently opened or closed in a state in which rotation trajectories of the doors are ensured as a hinge bar connected to a carrier of a speed reduction unit through a hinge shaft and a rack and a pinion connected to a rotation shaft of a sun gear set a rotation amount of the doors during a process in which a hinge unit of the door moves along a rail in a diagonal direction toward the outside of a vehicle body in a vehicle including no B pillar.

A door connection structure includes a door guide for guiding a door in the longitudinal direction of a vehicle body, a door hinge arm mounted on the vehicle body, and including a hinge rotation shaft and a door rotation shaft, the door hinge arm rotating around the hinge rotation shaft when the door is sliding, a door hinge rotatably mounted around the door rotation shaft and connected to the door, a first catcher rotatably mounted on the door hinge arm and of which a center striker guide is formed thereto, and a center striker which is inserted into the center striker guide to rotate the first catcher and limits rotation of the first catcher when the door swings so that the door swings around the door rotation shaft.

A door hinge device for a vehicle is capable of facilitating two doors to be simultaneously or independently opened or closed in a state in which rotation trajectories of the doors are ensured as a hinge bar connected to a carrier of a speed reduction unit through a hinge shaft and a rack and a pinion connected to a rotation shaft of a sun gear set a rotation amount of the doors during a process in which a hinge unit of the door moves along a rail in a diagonal direction toward the outside of a vehicle body in a vehicle including no B pillar.

A vehicle body includes a door opening frame including a sill and a front portion and a rear portion each extending upwardly from the sill. The door opening frame has a top portion extending along a vehicle-longitudinal axis from the front portion to the rear portion. An airbag is mounted to the sill. A front cable and a rear cable are each connected to the airbag. At least one cable retractor is mounted to the vehicle body above the top portion of the door opening frame. The front cable in the undeployed position is packaged along the front portion and the top portion of the door opening frame from the airbag to the at least one cable retractor. The rear cable in the undeployed position is packaged along the rear portion and the top portion of the door opening frame from the airbag to the at least one cable retractor.

A door connecting device for a vehicle to which opposite swing doors including a rear door and a front door is applied, the opposite swing doors being configured to be opened or closed by a relative movement between the rear door and the front door, includes a lever rotatably mounted on one of the front door and the rear door and configured to be rotated by the relative movement between the rear door and the front door; a catcher disposed on one of the front door and the rear door and configured to rotate in conjunction with a rotation of the lever; and a cable connecting the lever and the catcher and configured to transmit a rotation force caused by the relative movement to the catcher when the lever rotates.

A vehicle door device includes a first link mechanism formed of first and second link arms having a first rotary coupling point with respect to a vehicle body and a second rotary coupling point with respect to a door of a vehicle, and a second link mechanism formed of the first and second link arms provided independently of the first and second link arms forming the first link mechanism. First and second doors respectively supported by the first and second link mechanisms open and close independently in different directions based on operations of the first and second link mechanisms. At least one of the first and second link arms forming the first link mechanism and the first and second link arms forming the second link mechanism is provided with a coupling length variable mechanism that allows a coupling length between the first and second rotary coupling points to vary.

A door latch device for vehicles may configure a pop-up guide unit at a location far from a hinge portion on a door by integrally forming the pop-up guide unit in a latch unit for keeping a locking state of the door in a vehicle without a B pillar, preventing a mutual sweeping phenomenon of a door or vehicle body-side weather strip during a pop-up operation process of the door.

The present invention relates to a vehicle door assembly with a single A post, significantly deviating from conventional multi-post door structures. This innovative closure system, primarily envisioned for sports and high-performance vehicles, is versatile to be adapted across a wide range of vehicle categories. The core innovation lies in the integration of car doors mounted along the vehicle's centerline, with door hinges directly affixed to a centrally located single A post. This arrangement facilitates the division of the windshield into two halves, each corresponding to a door, allowing both the left and right portions of the windshield to open in unison with the movement of their respective doors. The invention introduces several advantages over traditional automotive door designs, including enhanced driver visibility, improved vehicle body stiffness, reduced manufacturing costs and vehicle weight, expanded door opening aperture, and improved ease of entry and exit for passengers.

A side impact restraint protection system for a vehicle includes first and second side safety structures and first and second structural elements of a vehicle body structure. The first and second side safety structures are respectively connected to a first side door and a second side door. The first and second side doors are arranged to cover a common single door opening of the vehicle body structure. The first structural element is in a position in front of the door opening and the second structural element is in a position behind the door opening in a longitudinal direction. In the closed door position, the first and second side safety structures are releasably connected to each other via a connecting device, and the first and second side safety structures are respectively connected to the first and second structural elements via a first connection member and a second connection member.

A door connecting device for a vehicle to which opposite swing doors including a rear door and a front door is applied, the opposite swing doors being configured to be opened or closed by a relative movement between the rear door and the front door, includes a damper disposed on one of the front door and the rear door and configured to move forward or rearward while coming into contact with an end portion of the other of the rear door and the front door when the rear door and the front door are closed; a stopper disposed on the one of the front door and the rear door and configured to be moved forward or rearward by a forward movement or a rearward movement of the damper; and a lever connecting the damper and the stopper and configured to mediate a forward movement or a rearward movement of the stopper when the damper moves forward or rearward thereof.