System and method for adjusting seat height of chair

Patent metadata

Field	Value
Publication number	US-9867465-B2
Application number	US-201514792032-A
Country	US
Kind code	B2
Filing date	Jul 6, 2015
Priority date	Nov 5, 2014
Publication date	Jan 16, 2018
Grant date	Jan 16, 2018

Abstract

In a seat height adjustment method for a chair, a body height of a user of an electronic device is acquired from the electronic device which is in communication with the chair. The method further computes a target seat height suitable for the user according to the user's body height and a preset formula. The lifting device can automatically adjust the seat height for a user when the user has leave the chair and further returning the seat of the chair to an original height.

First claim

What is claimed is:

1. A chair comprising:
a lifting device that adjusts a seat height of the chair;
at least one processor coupled to the lifting device; and
a storage device that stores one or more programs which, when executed by the at least one processor, cause the at least one processor to:
acquire a body height of a user of an electronic device from the electronic device which is configured to communicate with the chair;
compute a target seat height of the chair suitable for the user according to a body height as received from the electronic device and a preset formula; and
control the lifting device to adjust the seat height to be the target seat height.

2. The chair of claim 1 , wherein the at least one processor further:
determines if the user is not on the chair; and
controls the lifting device to restore the seat height of the chair to be the original seat height when the user is not on the chair.

3. The chair of claim 1 , wherein the seat height is adjusted to be the target seat height by:
calculating a difference height between the target seat height and an original seat height of the chair by subtracting the original seat height from the target seat height;
controlling the lifting device to move a seat of the chair upward with a number of the difference height, when the difference height is a positive; and
controlling the lifting device to move the seat of the chair downward with the number of the difference height when the difference height is a negative.

4. The chair of claim 1 , wherein the at least one processor determines if the user is not on the chair by:
detecting a downward pressure of the seat by a pressure sensor of the chair;
determining that the user does not leave the chair when the acquired downward pressure is greater than a preset pressure; and
determining that the user leaves the chair when the acquired downward pressure is less than or equal to the preset pressure.

5. The chair of claim 1 , wherein the at least one processor further acquires the body height of the user from the electronic device automatically when the chair communicates with the electronic device.

6. The chair of claim 1 , wherein the at least one processor acquires the body height of the user from the electronic device by:
sending a message to the electronic device for prompting the user of the electronic device to measure and provide the body height of the user, or sending a preset command to the electronic device for controlling the electronic device to provide a pop-up window for inputting the data of the body height; and
receiving the body height of the user from the electronic device.

Assignees

• Hon Hai Prec Ind Co Ltd

Inventors

• Hsu Hsin-Wen
• Tsai Yi-Chien
• Chiu Hsiao-Ping

Classifications

• A47C3/20 Primary

  Chairs or stools with vertically-adjustable seats · CPC title

• A47C31/126

  for chairs · CPC title