Automatic-adjusting motor vehicle door side-collision-prevention device

Abstract

The invention relates to an automatic-adjusting motor vehicle door side-collision-prevention device which is used for protecting the safety of a driver and passengers, and comprises a collision-prevention rod parallel to a vehicle door; the two ends of the collision-prevention rod are respectively connected with a vehicle door inner plate by a rotation driving device and a sliding mechanism; the rotation driving device comprises a fan-shaped gear, a stepping motor, a motor control circuit and a fixing bracket fixed on the vehicle door inner plate; the fan-shaped gear is fixedly connected withthe end part of the collision-prevention rod by a driving end connecting piece; a rotating shaft is vertical to the vehicle door and is connected with the fixing bracket; the stepping motor is installed on the fixing bracket, and an output gear of the stepping motor is meshed with the fan-shaped gear; and a control signal input end is connected with the motor control circuit. The automatic-adjusting motor vehicle door side-collision-prevention device can automatically adjust the position of the collision-prevention rod according to the position of a seat so as to lead an H point (R point) of the driver and the passengers who have different figures to be within the best protective range, thus exerting the protecting function of the collision-prevention rod to the utmost extent, and ensuring the safety of the driver and the passengers.

Description

technical field [0001] The invention relates to a device installed on a car door to prevent drivers / passengers from being hit, and belongs to the field of protection technology. Background technique [0002] Installing the door anti-collision bar on the door can improve the strength and rigidity of the door, improve the frontal / side impact performance of the vehicle, and implement passive safety protection for the driver and passengers. Chinese patent publication number CN 101481989A (disclosure date on July 15, 2009) discloses a kind of "automobile door anti-collision bar and the automobile door using the anti-collision bar". The connecting piece at the end is fixed (welded, riveted or bolted) on the inner panel of the door, which can effectively prevent the lateral intrusion of the side door and protect the H point (R point) of the occupant, that is, the part below the crotch of the occupant. However, because people have different bodies, the position of the car seat need...

AI Technical Summary

Problems solved by technology

This is because the 5th percentile human body is small in stature. When driving, the seat needs to be moved toward the front of the car to meet the driving requirements. As a result, the H point (R point) of the human body deviates from the optimal protection range of the anti-collision bar, weakening the The protective effect of the anti-collision bar, so the damage value is large

Therefore, the existing fixed door anti-collision bars cannot match the actual body positions of the drivers and passengers well, and it is difficult to obtain an ideal protection effect.

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