[특허]Rotary bus lift with power stowable platform

Rotary bus lift with power stowable platform 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60P-001/00
출원번호	US-0706583 (1991-05-28)
발명자 / 주소	Czech Edward A. (Winamac IN) Goodrich Ronald W. (Logansport IN) Crawford Kevin L. (Winamac IN)
출원인 / 주소	The Braun Corporation (Winamac IN 02)
인용정보	피인용 횟수 : 98 인용 특허 : 0

초록 ▼

Passive rotary wheelchair lift that is retrofittable in transit vehicles on either the forward or rearward edge of a side double-door step well. The lift employs in its preferred embodiment a double slide tube having a box frame with a cross header. A hydraulic cylinder actuates a pair of chains, one descending down each lift tube to operate the vertical lift. A manual hand pump is provided in the case of power failure. Secured to the bottom of inner telescoping lift tubes is a plate carrying a power actuator for rotating the lift platform from a deployed horizontal position to a vertical stowed position. In the stowed position the platform is approximately 26 inches in length and 36 inches in width. The platform has one or more slide-mounted extension sections which permit the platform to extend out to a full 51 inches. Manual or power-actuated wheel stops are provided at the rear entry and the forward end, for either one way or two way entry/exit onto the platform. Lockout circuitry prevents the actuators from rotating or stowing if the platform is not in its full raised position. Actuator clutch mechanism prevents the platform from being stowed if it is occupied. As installed, one of the double doors is openable permitting the stairwell to be used by an able-bodied person. The stowed platform is nested against a transit seat and remains behind the closed door half of the double-door pair. For use by a wheel chair user, both doors are opened and the lift is deployed, rotated and actuated to raise or lower the user to the ground, platform or curb. A special power actuating and ground contact locking plate is employed to permit the entry the entry wheelstop to be both power actuated and pivoted to the stowed position. The actuators can be disconnected for full manual operation in the event of power failure. A variety of lockout switches and circuitry is shown.

대표청구항 ▼

A passive rotary wheelchair lift for retrofit adjacent an entry/exit stair well of a transit vehicle comprising in operative combination: a) a lift platform assembly which includes: i) a generally planar platform having a first, longitudinal axis, and a second, transverse axis; ii) at least one support arm disposed parallel to said transverse axis and beneath said platform to support said platform; iii) a pivotable rollstop disposed to pivot from a generally vertical position to a generally horizontal position to permit entry of said wheelchair user onto said platform, said rollstop being disposed generally parallel to said transverse axis and at one end of said platform; iv) a pair of spaced side walls oriented parallel to the longitudinal axis of said platform and disposed on opposed longitudinal sides of said platform; b) means for lifting and lowering said platform disposed adjacent one of said longitudinal sides of said platform to permit said platform to be raised and lowered between a first, vehicle floor level to a second, lower level; c) said platform being pivotally connected about an offset axis adjacent a lower end of said lifting means so that said platform can be stowed in a generally vertical position; d) means for rotationally supporting said lifting means along a generally vertical axis; e) power means for rotating said lifting means and said platform from a first inboard position within said vehicle to an outboard position external of said vehicle with the wheel chair thereon so that said platform can be lowered to the ground; f) means for mounting said lift in said vehicle; g) means for powered rotation of said platform along a generally horizontal axis between a first generally horizontal deployed platform position to a second, generally vertical passive stowed platform position, said platform power stowage means being connected between said platform and said lifting means, said platform power stowage means being carried by said platform lifting means; and h) in combination, said lift in its stowed configuration permitting able bodied use of said stairwell, and wheel chair use when deployed into said stairwell.

이 특허를 인용한 특허 (98)

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Henseleit, Andrew; Gilmore, Justin, Method and system of controlling an automated door assembly of a motorized vehicle.
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Egan, Thomas F., Multi-motion lifting and transferring apparatus and method.
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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

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연합인증

Rotary bus lift with power stowable platform 원문보기

초록 ▼

대표청구항 ▼

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연합인증

Rotary bus lift with power stowable platform 원문보기

초록 ▼

대표청구항 ▼

연구과제 타임라인

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이 특허를 인용한 특허 (98)

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