IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0747024
(2000-12-20)
|
발명자
/ 주소 |
- Lewis, Cleatus
- Cohn, Alan R.
- Morris, Donald
|
출원인 / 주소 |
- Lift-U, Division of Hogan Mfg., Inc.
|
대리인 / 주소 |
Christensen O'Connor Johnson Kindness PLLC
|
인용정보 |
피인용 횟수 :
40 인용 특허 :
16 |
초록
▼
A wheelchair ramp assembly (20) is disclosed. The wheelchair ramp assembly includes a frame attachable to a vehicle having a floor, a platform coupled to a portion of the frame, a ramp having a weight, and a reciprocating mechanism disposed between the ramp and the platform coupled to a portion of t
A wheelchair ramp assembly (20) is disclosed. The wheelchair ramp assembly includes a frame attachable to a vehicle having a floor, a platform coupled to a portion of the frame, a ramp having a weight, and a reciprocating mechanism disposed between the ramp and the platform coupled to a portion of the frame, a ramp having a weight, and a reciprocating mechanism disposed between the ramp and the platform for reciprocating the ramp between a deployed position and a stowed position in response to a force. The reciprocating mechanism counterbalancing the weight of the ramp during actuation of the ramp between the deployed and stowed positions to reduce the force required to reciprocate the ramp between the deployed and stowed positions.
대표청구항
▼
A wheelchair ramp assembly (20) is disclosed. The wheelchair ramp assembly includes a frame attachable to a vehicle having a floor, a platform coupled to a portion of the frame, a ramp having a weight, and a reciprocating mechanism disposed between the ramp and the platform coupled to a portion of t
A wheelchair ramp assembly (20) is disclosed. The wheelchair ramp assembly includes a frame attachable to a vehicle having a floor, a platform coupled to a portion of the frame, a ramp having a weight, and a reciprocating mechanism disposed between the ramp and the platform coupled to a portion of the frame, a ramp having a weight, and a reciprocating mechanism disposed between the ramp and the platform for reciprocating the ramp between a deployed position and a stowed position in response to a force. The reciprocating mechanism counterbalancing the weight of the ramp during actuation of the ramp between the deployed and stowed positions to reduce the force required to reciprocate the ramp between the deployed and stowed positions. positions, one the operative position for the clamping element (11) engaged under the worktop with the slots (15) in the ends of the pin (9) upright and the other the non-operative position with the pin (9) rotated to a position where the clamping element (11) is swung clear of the worktop. 4. A fastener as claimed in claim 3, characterized in that the clip (1) has grooves (7) to receive the guide fingers (14) when the pin (9) is in the operative position. 5. A fastener as claimed in claim 3, characterised in that the detents are angularly spaced recesses (22,23) in the pin (9) and a projection (24) into the cylindrical bore through the plastics clip (1) which receives the pin (9), the projection (24) having snap engagement with either recess (22,23). 6. A fastener as claimed in claim 5, characterized in that the clip (1) has grooves (7) to receive the guide fingers (14) when the pin (9) is in the operative position. 7. A fastener as claimed in claim 5, characterised in that one recess (22) is a groove parallel to the axis of the pin (9) and joining the end slots (15). 8. A fastener as claimed in claim 7, characterized in that the clip (1) has grooves (7) to receive the guide fingers (14) when the pin (9) is in the operative position. 9. A fastener as claimed in claim 7, characterised in that there are two other recesses, symmetrically positioned on either circumferential side of the groove. 10. A fastener as claimed in claim 9, characterized in that the clip (1) has grooves (7) to receive the guide fingers (14) when the pin (9) is in the operative position. rabays. 6. The automatic manufacturing system as claimed in claim 4, wherein the conveying rail section has a first rail section, a second rail section adjacent to the first rail section, and cross rails connecting ends of said first and second rail sections such that said first and second vehicles can circulate along said first and second rails, respectively, in a continuous loop. 7. The automatic manufacturing system as claimed in claim 4, wherein a said over-head conveying apparatus also extends in the interbay alongside ends of each of said intrabays. 8. The automatic manufacturing system as claimed in claim 7, wherein the conveying rail section of the over-head conveying apparatus extending in the interbay has a first rail section, a second rail section adjacent to the first rail section, and cross rails connecting ends of said first and second rail sections such that said first and second vehicles can circulate along the first and second rails, respectively, in a continuous loop.
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