Clean chair having an automatic closing fuction of a seatback

Abstract

The present invention provides a chair, particularly relating to a chair, the chair has a component of automatically closing function of a backrest, protecting the chair form the damage of dust, rain and snow by providing the automatic closing component of the backrest. The cleaning chair having au automatically closing component of the invention includes: a seat, its design is rotating around the supporting bar fixed on the seat frame, and receiving the elasticity of the elastic component which is separated by the supporting bar at the certain distance; a backrest, having design of rotation around the seat, and having a support protruding formed on the adjacent end of the seat; a supporting component, mounted on the back of the seat, touching or separating with the supporting protruding according to the rotating condition of the backrest; a hinge unit, connecting the seat and the backrest to rotate, and having a first hinge component connected to the seat and two second hinge components connected to the backrest; a buffer unit, providing a buffering power of the given range for the relative rotation of the first and second hinge components; and an enforcing component inserted in the seat and the backrest respectively, composed of material having more hardness than the seat and the backrest.

Description

Technical field [0001] [01] The present invention relates to a chair, and more specifically, to a chair having a member that automatically closes the backrest to protect the chair from dust, rain, and snow by providing the automatic closing member of the backrest. [0002] [02] A chair usually has a seat that supports the user's buttocks, a backrest that supports the user's back, and a frame that fixes the seat and the backrest. [0003] [03] However, in the design of a traditional chair, the position of the backrest is fixed relative to the seat, or the backrest of the chair can be rotated. [0004] [04] Specifically, chairs placed in places such as stadiums or parks are made of resin material with strong moisture resistance because those chairs are placed outdoors and exposed to rain and snow. The seats of those chairs are always exposed, so that the surface area of ​​the seats becomes dusty and becomes damp and contaminated when it rains or snows. Background technique [0005]...

AI Technical Summary

Problems solved by technology

[0007] [07] However, in the prior art, the seat and the backrest are made of resin material, so that the chair is easily damaged by the gravity of the user due to the decrease in the durability of the hinge part between the seat and the backrest, which must be fixed on the backrest. The back of the chair provides an additional support member to withstand the external force caused by the user during the seating process, resulting in a more complicated chair structure

[0008] [08] In addition, the existing invention also has the disadvantage of increasing the cost due to the structural complexity of the seat elastic support member for providing the automatic closing function

[0009] [09] Furthermore, in the prior invention, the supporting member of the backrest protrudes toward the seat when folded, thereby making the appearance of the backrest very undesirable and causing inconvenience to pedestrians and deterioration of user's feeling

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