Chair Structure

Abstract

A chair structure includes a seat unit having a support leg assembly and a seat; a connecting unit having two linking members and movably connected at one linking member to the seat; a backrest unit movably connected to another linking member of the connecting unit and having a supporting member; and at least two armrests movably connected to two lateral sides of the seat and the backrest units. Each of the armrests has a first and a second movable arm, which are pivotally connected at one end to each other, and at the other end to one lateral side of the seat and the backrest unit, respectively. A stop member is connected to at least one of the two armrests. The chair with movably connected seat unit, connecting unit, backrest unit, and armrests can be converted into a lounge providing a curved configuration in compliance with human body's back curve.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a chair structure, and more particularly to a chair structure which can be converted from a chair into a lounge having a curved configuration in compliance with human body's back curve to meet the requirements of body engineering, so that a user can comfortably lie on the lounge on his back.BACKGROUND OF THE INVENTION[0002]Generally, a conventional chair includes a seat, a backrest movably connected to a rear edge of the seat, and four legs perpendicularly connected to a lower side of the seat. A user can sit on the seat with his or her back leaning on the backrest. The backrest can be adjusted in an inclination angle thereof to convert the chair into a lounge for the user to lean thereon.[0003]While the conventional chair allows a user to sit thereon or convert it into a lounge for leaning, the backrest can usually be adjusted to be half inclined relative to the seat because the backrest is directly movably connected to t...

AI Technical Summary

Benefits of technology

[0004]A primary object of the present invention is to provide a chair structure, which includes movably connected parts and can be converted into a lounge having a curved configuration in compliance with human body's back curve to meet the requirements of body engineering, allowing a user to comfortably lie on the lounge.

Problems solved by technology

Moreover, in the conventional chair, the backrest and the seat are not formed with a curved configuration in compliance with human body's back curve to meet the requirements of body engineering, and there would be a gap existed between the backrest and the seat.

Therefore, even if the backrest of the conventional chair can be angularly adjusted to a fully horizontal position relative to the seat to convert the chair into a lounge, the fully stretched seat and backrest could not provide a curve meeting the requirements of body engineering to comfortably support the waist of a user lying on the lounge.

The user may have a sore waist after lying on the lounge over a long time.

Therefore, the conventional chair is not comfortable in practical use thereof.

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