chair with automatic brake

Abstract

The invention relates to a chair with an automatic braking function. The chair comprises a seat, a backrest, a seat liner plate, a rotating support shaft liner plate, a rotating shaft, a rotating sleeve, chair legs, rollers, a brake cable and brake pads. The backrest is fixed to the rear end of the seat, the seat and the seat liner plate are in rigid connection, and the seat liner plate is connected below the seat. The rotating support shaft liner plate is hinged below the seat liner plate through a rotary shaft which is in eccentric arrangement relative to the center of the rotating support shaft, the seat liner plate and the rotating support shaft liner plate are connected through a spring, the rotating shaft is in rigid connection below the rotating support shaft liner plate, and the rotating sleeve sleeves the lower portion of the rotating shaft which is capable of rotating in the rotating sleeve. The chair legs are in rigid connection below the rotating sleeve, the brake pads are mounted on the rollers which are mounted below the chair legs, one end of the brake cable is mounted on the seat liner plate while the other end of the brake cable is mounted on the brake pads. Armrests are arranged at two ends of the seat respectively.

Description

technical field [0001] The patent of the present invention relates to the technical field of daily necessities, in particular to a chair with automatic braking function. Background technique [0002] At present, most chair legs are equipped with rollers, whether it is an office chair or a home life chair, to facilitate the movement of the chair. However, the friction between the rollers and the ground is low, especially when the rollers are on smooth ground. When the person leans back on the seat, if the feet or arms cannot be firmly restrained, the chair will slide backwards, which may easily cause injury. Especially elderly people or children who use wheelchairs are more at risk of injury. Existing wheelchairs with rollers do not have brakes or devices that restrict free movement, and there are certain safety hazards during use. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art...

AI Technical Summary

Problems solved by technology

However, the friction between the rollers and the ground is low, especially when the rollers are on a slippery ground. When the person leans back on the seat, if the feet or arms cannot be firmly restrained, the chair will slide backwards, which may easily cause personal injury.

Especially when the elderly or children use chairs with wheels, they are more prone to the risk of injury

Existing chairs with rollers do not have brakes or devices that restrict free movement, and there are certain safety hazards during use

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