[특허]Variable contour seating device

[미국특허] Variable contour seating device 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47C-007/02
출원번호	US-0653896 (1976-01-30)
발명자 / 주소	Wilcox Thomas J. (Rte. 1 Box 334 East Troy WI 53120)
인용정보	피인용 횟수 : 88 인용 특허 : 0

초록 ▼

The seating device has an elongated sack-like cover of a flexible material, such as an upholstery fabric, forming a cavity which is loosely filled with a freely flowable filler material, such as small spherical beads of expanded polystyrene. The cover includes a pair of generally vertical, opposed side panels, each of which has enlarged curvate end portions and a constricted intermediate portion, and an elongated center panel which is joined at its opposed longitudinal sides to the perimeter of the side panels to form a longitudinal, body supporting, upper surface having a generally convex enlarged end area adapted to serve as a backrest, another generally convex enlarged end area adapted to serve as a leg rest and a generally concave intermediate area adapted to support the derriere of the occupant. The contour of the supporting surface can be adjusted back and forth between a substantially upright sitting position and a substantially fully reclined position by selectively applying external pressure on one or more of the areas to cause the filler material to flow from and into selected areas and thereby alter the contour of the selected areas relative to one another.

대표청구항 ▼

A variable contour seating device comprising an elongated sack-like cover of a flexible material forming a cavity which is loosely filled with a freely flowable filler material, said cover including a pair of generally vertical, opposed side panels, each of which has enlarged curvate end portions and a constricted intermediate portion, and an elongated center panel having its opposed longitudinal sides joined to the perimeter of said side panels so as to provide a longitudinal body supporting upper surface having a generally convex first enlarged end portion adapted to serve as a backrest area, a generally convex second enlarged end portion adapted to serve as a leg rest area, and a generally concave intermediate area adapted to support the derriere of the occupant, the vertical height of said enlarged curvate end portions being greater than the vertical height of said constricted intermediate portions so that the vertical heights of said backrest area and said leg rest area are always greater than the vertical height of said intermediate area, whereby an occupant lying on said body supporting surface can vary the contour thereof by selectively shifting his weight from one to another of said areas so as to cause said filler material to flow in a longitudinal direction from said intermediate area and decrease the vertical height of said intermediate area when weight is shifted onto said intermediate area, and to flow into said intermediate area and increase the vertical height of said intermediate area when weight is shifted from said intermediate area, and can thereby selectively alter the contour of said areas relative to one another and from and back to the initial shape of said seating device imparted by reason of the construction features recited above.

이 특허를 인용한 특허 (88) 인용/피인용 타임라인 분석

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A	생활필수품
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A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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