Foldable chair and an aircraft including the same

Patent metadata

Field	Value
Publication number	US-2025145296-A1
Application number	US-202418649287-A
Country	US
Kind code	A1
Filing date	Apr 29, 2024
Priority date	Nov 6, 2023
Publication date	May 8, 2025
Grant date	—

Abstract

A foldable chair includes a first frame; a second frame disposed in parallel with the first frame; a connection portion configured to movably connect the first frame and the second frame and change in length based on movement between the first frame and the second frame; a seat accommodation portion disposed on one of the first frame or the second frame; and a seat portion. In particular, at least a portion of the seat portion is accommodated in the seat accommodation portion, and the seat portion is configured to be drawn out from the seat accommodation portion and detachably fastened to the other of the first frame or the second frame.

First claim

What is claimed is:

1 . A foldable chair comprising:
a first frame; a second frame disposed in parallel with the first frame; a connection portion configured to movably connect the first frame and the second frame and change in length based on movement between the first frame and the second frame; a seat accommodation portion disposed on one of the first frame or the second frame; and a seat portion, wherein at least a portion of the seat portion is accommodated in the seat accommodation portion, wherein the seat portion is configured to be drawn out from the seat accommodation portion and detachably fastened to the other of the first frame or the second frame.

2 . The foldable chair of claim 1 , wherein the first frame comprises a first leg frame and a first seat frame configured to be coupled to the first leg frame, and
wherein the second frame comprises a second leg frame disposed to face the first leg frame, and a second seat frame configured to be coupled to the second leg frame to face the first seat frame.

3 . The foldable chair of claim 2 , wherein the seat accommodation portion is coupled to the first seat frame, and
wherein the second seat frame is provided with a fastening hook configured to fasten the seat portion in a position facing the seat accommodation portion.

4 . The foldable chair of claim 3 , wherein the seat portion comprises:
a seat screen configured to be drawn out from or pulled back into the seat accommodation portion, and a holder configured to be coupled to the seat screen and fastened to the fastening hook.

5 . The foldable chair of claim 4 , wherein the holder comprises:
a connection member to which the seat screen is connected, and a fastening member configured to be rotatably connected to the connection member and fastened to the fastening hook, wherein the fastening member has a fastening hole corresponding to the fastening hook.

6 . The foldable chair of claim 4 , wherein the seat accommodation portion comprises:
a housing in which the seat screen is accommodated, and a shaft configured to be rotatably disposed in the housing and around which at least a portion of the seat screen is wound.

7 . The foldable chair of claim 6 , wherein the housing is configured to be coupled to the second seat frame, and configured to form an opening in at least a portion of the housing to allow the seat screen to move.

8 . The foldable chair of claim 6 , wherein the seat screen is drawn out from the housing when the shaft rotates in a first rotation direction, and the seat screen is pulled into the housing when the shaft rotates in a second rotation direction opposite to the first rotation direction.

9 . The foldable chair of claim 8 , wherein the shaft comprises an elastic structure configured to apply a restoring force to the seat screen in a direction to be pulled into the seat accommodation portion, in a state in which at least a portion of the seat screen is drawn out from the seat accommodation portion.

10 . The foldable chair of claim 9 , wherein the elastic structure provides a rotational restoring force to the shaft in the second rotation direction when the shaft rotates in the first rotation direction, and
wherein the restoring force acts on the seat screen based on the rotational restoring force.

11 . The foldable chair of claim 9 , wherein the restoring force acting on the seat screen has a magnitude to support a load of a seated person.

12 . The foldable chair of claim 9 , wherein the foldable chair is configured to be convertible into a folding mode or a seating mode,
wherein the folding mode is a state in which the first frame and the second frame are in contact with each other and the seat portion is accommodated in the seat accommodation portion, and wherein the seating mode is a state in which the first frame and the second frame are spaced apart from each other at a specified interval and the seat portion is drawn out and fastened to the second frame.

13 . The foldable chair of claim 2 , wherein the connection portion is provided such that a length of the connection portion changes in a direction, parallel to a movement direction between the first frame and the second frame, in a state in which the first frame and the second frame are connected.

14 . The foldable chair of claim 13 , wherein both end portions of the connection portion are configured to be connected to the first leg frame and the second leg frame, respectively, and
wherein a length of the connection portion decreases as the first leg frame and the second leg frame move closer to each other, and increases as the first leg frame and the second leg frame move away from each other.

15 . The foldable chair of claim 2 , wherein the first leg frame and the second leg frame are configured to be coupled to an installation surface on which the foldable chair is installed.

16 . The foldable chair of claim 15 , wherein at least one of the first leg frame or the second leg frame is configured to be detachably coupled to the installation surface, and movable with respect to the installation surface.

17 . An aircraft comprising:
a fuselage; and a foldable chair installed in the fuselage, wherein the foldable chair includes: a first frame; a second frame disposed in parallel with the first frame; a connection portion configured to movably connect the first frame and the second frame and change in length based on movement between the first frame and the second frame; a seat accommodation portion disposed on one of the first frame or the second frame; and a seat portion, wherein at least a portion of the seat portion is accommodated in the seat accommodation portion, and wherein the seat portion is configured to be drawn out from the seat accommodation portion and detachably fastened to the other of the first frame or the second frame.

18 . The aircraft of claim 17 , wherein the foldable chair is configured to be convertible into a folding mode or a seating mode,
wherein the folding mode is a state in which the first frame and the second frame are in contact with each other and the seat portion is accommodated in the seat accommodation portion, and wherein the seating mode is a state in which the first frame and the second frame are spaced apart from each other at a specified interval and the seat portion is drawn out and fastened to the second frame.

19 . The aircraft of claim 18 , wherein the first frame and the second frame are configured to be coupled to an installation surface of the fuselage, and
wherein at least one of the first frame or the second frame is configured to be detachably coupled to the installation surface, and movable with respect to the installation surface.

20 . The aircraft of claim 18 , wherein the foldable chair is operated in the folding mode when goods are being transported in the aircraft, and
wherein the foldable chair is operated in the seating mode when passengers are being transported in aircraft.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp
• Hyundai Transys Inc

Inventors

• Hong Suk Won
• Nam Ga Be
• Kim Mu Young
• Han Jong Seok
• Kim Gil Ju
• Seo Sang Man
• Lee Hyun Ji
• Kim Hyung Rae
• Yoo Jeong Yong
• Park Gyung Do
• Kim Dong Hwan

Classifications

• B64D11/0693

  Width modification of seat assemblies, e.g. for class modification · CPC title

• B64D11/0639 Primary

  with features for adjustment or converting of seats · CPC title

• B64D11/06

  Arrangements of seats, or adaptations or details specially adapted for aircraft seats (crew seat constructions for emergency purposes B64D25/04) · CPC title

• B64D11/0696

  Means for fastening seats to floors, e.g. to floor rails · CPC title