A handrail gravity self-locking mechanism and its design method

Abstract

The invention relates to the technical field of car seats, and more specifically, to an armrest gravity self-locking mechanism and a design method thereof. The handrail gravity self-locking mechanism proposed by the present invention includes a locking piece and a handrail locking shaft: the locking piece is installed on the armrest bracket through the rotating shaft of the locking piece; the handrail locking shaft is installed on the handrail; Under normal conditions, the locking piece does not contact the locking shaft of the armrest under the action of gravity, the locking piece is in the unlocked position, and the armrest is free to open to the maximum angle; in the collision state, the locking piece moves along the rotation axis of the locking piece under the action of inertia When the rotation exceeds the set acceleration, the locking end of the locking plate collides with the locking shaft of the armrest and locks, and the locking plate is in the locked position, limiting the opening angle of the armrest. The invention not only guarantees the function and convenience of the handrail in normal use, does not affect the customer's use experience, but also ensures the locking in the collision state, protects the safety of passengers, has small structural space, is easy to arrange, and is cheap and low in cost.

Description

technical field [0001] The invention relates to the technical field of car seats, and more specifically, to an armrest gravity self-locking mechanism and a design method thereof. Background technique [0002] There are generally three seats in the rear seat of a car, and the middle seat is generally narrower than the two sides. An armrest will be placed on the middle seat. When no one is sitting in the middle seat, passengers on both sides can let go or place other items such as water glasses. When the armrests are closed, the middle seat can still sit. [0003] At present, some armrests will be equipped with special complex locking mechanisms, but the armrests are generally complex in structure and heavy in weight, such as the rear central armrest of Volkswagen Huiang and the rear central armrest of Audi A6L. [0004] Figure 1a A schematic diagram of a handrail with a complex locking mechanism of the prior art is revealed, such as Figure 1a As shown in the armrest, when ...

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a handrail gravity self-locking mechanism and its design method to solve the completeness problem caused by the handrail in the prior art when it is in the horizontal open position when it collides

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