[특허]Adjustable height mechanism for a collapsible support frame

Adjustable height mechanism for a collapsible support frame 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47D-013/04 B62B-007/06
출원번호	US-0877327 (1992-05-01)
발명자 / 주소	Sumser Daniel P. (North Canton OH) Green Michael P. (Youngstown OH)
출원인 / 주소	Century Products Company (Macedonia OH 02)
인용정보	피인용 횟수 : 25 인용 특허 : 0

초록 ▼

An adjustable height mechanism for use in devices employing a collapsible scissors frame supporting an object is disclosed having a pair of pawls secured to the sliding leg of the scissors frame and slidably mounted onto a pair of guide rails. A central channel is positioned between the guide rails and receives a guide member extending from the leg to provide additional tracking and lateral stability during movement of the leg. A pair of spring biased, pivoting ratchet arms are mounted to the supported object and include a series of ratchet stops and a finger grip. The ratchet arms engage the pawls to restrict movement of the leg of the scissors frame in one direction while allowing ratcheting free movement in the opposite direction. The finger grips can be used by the user to squeeze the free ends of the arms together and release the ratcheting engagement with the pawls to provide height adjustment of the object supported by the scissors frame.

대표청구항 ▼

An adjustable catch mechanism for adjusting the height of an object, the object mounted on a collapsible scissors frame having a first leg pivotally connected to a second leg, the object coupled to the second leg at a hinge joint, the mechanism comprising: a channel coupled to a bottom surface of the object and defining a travel path; a member mounted on the first leg and slidably disposed in said channel; first and second guide rails secured to the bottom surface of the object generally parallel to said channel; a first pawl slidably connecting the first leg to the first guide rail and a second pawl slidably connecting the first leg to the second guide rail, the first and second pawls each having an outwardly extending protrusion; a first arm having a pivot end, a free end and a finger grip near the free end, the pivot end pivotally mounted to the bottom surface of the object, the first arm including a plurality of indentations configured from a row of ratchet stops for receiving the outwardly extending protrusion of the first pawl, said protrusion being configured to engage said ratchet stops in a racheting motion subject to the biasing force of the first arm biasing means as the first leg moves toward the hinge joint; means for resiliently biasing the free end of the first arm towards the outwardly extending protrusion of the first pawl including a first resilient member engaging the first arm generally between the free end and the pivot end; a second arm having a pivot end, a free end and a finger grip near the free end, the pivot end pivotally mounted to the bottom surface of the object, the second arm including a plurality of indentations each configured to receive the outwardly extending protrusion of the second pawl; means for resiliently biasing the free end of the second arm towards the outwardly extending protrusion of the second pawl; and wherein selected engagement of the first and second protrusions with the indentations of the first and second arms respectively limit the motion of the member in the channel in a direction away from the hinge joint.

이 특허를 인용한 특허 (25)

Flaherty, Daniel G.; Patton, David; Wang, Sheng C., Adjustable desk platform.
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Cohen, Yochanan; Van Scoyoc, Velissa; Becene, Ahmet T.; Kravchenko, Ekaterina; Byar, Peter, Car seat and connection system.
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Yoshie, Toshiro; Ukitsu, Yutaka; Ikuno, Tokihiko, Child chair.
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Anderson Pauline A., Child safety seat stroller.
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Yang Peng-Yao,TWX, Fixing safety-control device for a collapsible child walker.
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Lai Jui Hsing,TWX, Height adjusting device for baby walkers.
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Tilley Martin C., Human-powered bumper car.
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Brewin, Joseph F; Palmer, Gerald C, Juvenile walker.
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Rosko Michael Scot, Juvenile walker.
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Sheng Cherng-Yuh,TWX, Link lifting gear for a baby-walker.
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Chung, Timothy Hing-Yan, Portable height-adjustable tabletop assembly and method of adjusting a height of the same.
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Yang Peng-Yao,TWX, Safety-control device of height adjustment for a baby walker.
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Berger, Aviad, Scissor lift that locks at a variable height.
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Pidcoe, Peter E.; Kolobe, Hlapang A., Self initiated prone progressive crawler.
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Gudipati, Ramachandra Rao, Support for baby.
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Knox, Howard T.; Saunders, Edward K., Variable height support.
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Knox, Howard T.; Saunders, Edward K., Variable height support.
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Bagheri, Kourosh, Walker.
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Bagheri, Kourosh, Walker.
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Thomas J. Welsh, Jr., Walker with constantly applied brake.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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

내보내기 구분	파일저장 인쇄 메일전송
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저장형식	Text(ASCII format) Excel format PIAS분석(.xls)
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연합인증

Adjustable height mechanism for a collapsible support frame 원문보기

초록 ▼

대표청구항 ▼

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이 특허를 인용한 특허 (25)

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Adjustable height mechanism for a collapsible support frame 원문보기

초록 ▼

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연구과제 타임라인

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이 특허를 인용한 특허 (25)

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