Reinforcement structure of rear tailgate of vehicle

Abstract

The invention provides a vehicle rear tail door strengthening structure which is used for improving overall rigidity of the rear tail door through connection of an inner strengthening component and an inner plate and an outer plate, vibration of a license plate can be suppressed when a rear tail door is closed, and therefore quality is improved; cavity resonance and swing sound can be inhibited. The rear tail door of the vehicle rear tail door strengthening structure is installed through door hinges, the center of the inner plate is provided with a via hole, the outer plate is provided with a plane part which is used for license plate arrangement, and the upper and lower positions of the plane part are provided with an installation part and a support part. Between the inner plate and the outer plate, an inner strengthening structure used for strengthening plate parts corresponding to a license plate arrangement part is arranged. A first connection part between the outer plate and the strengthening plate is arranged in a part, surround by the installation part and the supporting part, of the plane part. A second connecting part between the inner plate and the strengthening plate is placed on the upper edge part of the via hole and is arranged between direction lines of the first connecting part and the door hinges.

Description

technical field [0001] The present invention relates to a rear door reinforcement structure capable of reinforcing a rear door of a hatchback vehicle in which the rear door for opening and closing an opening at the rear of a vehicle body is rotatable through a door hinge The type of vehicle that is installed on the rear of the vehicle body. Background technique [0002] Conventionally, in order to open and close the opening at the rear of the vehicle body, a rear door of a hatchback vehicle is rotatably attached to an upper portion or a side portion of the rear portion of the vehicle body via a door hinge. This rear tailgate consists of an inner panel and an outer panel. A relatively large through hole is formed in the center of the inner panel as a weight-reducing hole or as a working hole for installation and maintenance of the license plate light and rear door handle. In addition, a plane portion for placing a license plate is provided on the outer panel, and the licens...

AI Technical Summary

Problems solved by technology

[0009] In addition, in the conventional reinforcement structure in which a sealant or the like is bonded after the reinforcing member is mounted on the inner panel, since the sealant itself used for bonding is relatively soft, it is not possible to lower the rear end of the inner panel and the outer panel when the vehicle is running. The door vibrates in the vertical direction, resulting in vertical misalignment displacement, and there is a problem that the vibration of the license plate cannot be suppressed.

In addition, when the shaking of the license plate portion is suppressed by firmly fixing it with a sealant, etc., stress may be concentrated on the fixed portion, which may cause cracks in the inner panel.

[0010] On the other hand, in order to reduce the shaking of the license plate part, etc., a method of suppressing the vibration of the rear tailgate in the vertical direction by installing a weight on the rear tailgate has also been proposed, but this method has the disadvantage of increasing the weight and cost. such problem

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