[특허]Suspensions for low floor vehicles

Aloha, LLC

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Suspensions for low floor vehicles

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60G-003/20 B60G-003/18
미국특허분류(USC)	280/124.111; 280/124.135; 280/124.136; 280/124.141; 280/124.151; 280/124.157
출원번호	US-0409614 (2006-04-24)
등록번호	US-7425005 (2008-09-16)
발명자 / 주소	Smith,Earl Dallas Smith,Judson
출원인 / 주소	Aloha, LLC
대리인 / 주소	Daniluck,John V.
인용정보	피인용 횟수 : 2 인용 특허 : 203

초록
▼

A low profile chassis and suspension system for a road vehicle. The chassis supports a payload section or cargo compartment, such as for a delivery truck, ambulance, or shuttle bus. The chassis includes a largely planar frame having a top surface which is located beneath the rotational axes of the rear wheels. The wheel suspension system is particularly compact and close to the road surface. In some embodiments each wheel is suspended from the vehicle by a pair of pivotal support arms. Preferably, one arm is located above the other arm, and both arms pivot along pivot axes that are generally perpendicular to the rotational axis of the supported wheel. A spring urges one of the arms apart from the frame. In other embodiments, the spring is placed beneath the rotational axis of the wheel. In some embodiments both of the pivoting support arms are located beneath the rotational axis of the wheel.

대표
청구항
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What is claimed is: 1. A suspension system for a vehicle comprising: a first wheel; a second wheel; a first stub axle providing support to said first wheel about a first rotational axis, said first stub axle being coupled to a first spindle support; a second stub axle providing support to said second wheel about a second rotational axis; a frame including a substantially flat portion having a top surface, said first wheel being located on one side of said frame, said second wheel being located on an opposing side of said frame, said portion being disposed generally beneath the first and second rotational axes; an upper pivotal support arm pivotally coupled to said first spindle support, said upper pivotal support arm being pivotally coupled to said frame below the top surface; and a lower pivotal support arm pivotally coupled to said first spindle support, said lower pivotal support arm being pivotally coupled to said frame below the top surface, said lower pivotal support arm being below said upper pivotal support arm. 2. The suspension of claim 1 wherein said upper support arm is pivotally coupled to said first spindle support below said first stub axle and above the pivotal coupling of said lower support arm and said first spindle support. 3. The suspension of claim 1 wherein said upper support arm is pivotal relative to said frame about an upper pivot axis, said lower support arm is pivotal relative to said frame about a lower pivot axis, the upper pivot axis is substantially perpendicular to the first rotational axis and the upper pivot axis is substantially parallel to the lower pivot axis. 4. The suspension system of claim 1 wherein the pivotal coupling of said upper pivotal support arm to said frame is below the top surface when the vehicle is transporting cargo or people. 5. The suspension system of claim 1 wherein said first spindle support provides cantilevered support of said first stub axle. 6. A vehicle comprising: a first unpowered rear wheel; a second unpowered rear wheel; a first stub axle providing support to said first wheel about a first rotational axis, said first stub axle being coupled to a first spindle support; a second stub axle providing support to said second wheel about a second rotational axis, a frame including a substantially flat portion having a top surface, said first wheel being located on one side of said frame, said second wheel being located on an opposing side of said frame, said portion being disposed generally beneath the first and second rotational axes; a payload section for transporting cargo or persons, said payload section having a floor supported at least in part by the top surface of said frame; a first pivotal support arm pivotally coupled to said first spindle support, said first support arm being pivotally coupled to the vehicle; a second pivotal support arm pivotally coupled to said first spindle support, said second pivotal support arm being pivotally coupled to said frame; and a biasing member urging apart one of said first support arm or said second support arm from one of said floor or said frame, said biasing member being located under said floor. 7. The vehicle of claim 6 wherein said second support arm is below said first support arm, said first support arm defines an aperture, said biasing member urges apart said second support arm from one of said floor or said frame, and said biasing member extends through the aperture. 8. The vehicle of claim 7 wherein said biasing member is an air spring. 9. The vehicle of claim 7 wherein said biasing member is electronically actuated. 10. The vehicle of claim 6 wherein said first and second support arms are pivotal about pivot axes that are forward and below the rotational axis of said first rear wheel. 11. The vehicle of claim 6 wherein the pivot axes are perpendicular to the rotational axes of said first and second rear wheels. 12. The vehicle of claim 6 which further comprises a first pair of pivot joints laterally spaced apart and coupling said first support arm to said frame, and a second pair of pivot joints laterally spaced apart and coupling said second support arm to said frame. 13. The vehicle of claim 6 wherein the top surface is substantially parallel to the roadway when the vehicle is transporting cargo or people. 14. A vehicle comprising: a first unpowered rear wheel; a second unpowered rear wheel; a first stub axle providing support to said first wheel about a first rotational axis; a second stub axle providing support to said second wheel about a second rotational axis; a frame including a substantially flat portion having a top surface, said first wheel being located on one side of said frame, said second wheel being located on an opposing side of said frame, said portion being disposed generally beneath the first and second rotational axes; a first pivotal support arm pivotally supporting said first stub axle by first and second pivotal attachments, said first support arm being pivotally coupled to said frame by third and fourth pivotal attachments, said first and second pivotal attachments being spaced apart and being pivotal about a first pivot axis, said third and fourth pivotal attachments being spaced apart and being pivotal about a second pivot axis; and a second pivotal support arm pivotally supporting said first spindle support, said second pivotal support arm being pivotally coupled to said frame. 15. The vehicle of claim 14 wherein said first pivot axis is substantially parallel to said second pivot axis. 16. The vehicle of claim 14 wherein said second support arm is pivotally coupled to said frame by fifth and sixth pivotal attachments, said fifth and sixth pivotal attachments being spaced apart and being pivotal about a third pivot axis. 17. The vehicle of claim 16 wherein said second support arm pivotally supports said first stub axle by seventh and eighth pivotal attachments, said seventh and eighth pivotal attachments being spaced apart and being pivotal about a fourth pivot axis. 18. The vehicle of claim 14 wherein said second pivot axis and said first rotational axis are substantially perpendicular. 19. The vehicle of claim 18 wherein said second pivot axis and said first pivot axis are substantially parallel. 20. The vehicle of claim 14 wherein said second pivot axis and said first pivot axis are substantially parallel. 21. A suspension system for a vehicle comprising: a first wheel; a second wheel; a first stub axle providing support to said first wheel about a first rotational axis; a second stub axle providing support to said second wheel about a second rotational axis, a frame including a substantially flat portion having a top surface, said first wheel being located on a first side of said frame, said second wheel being located on a second side opposing said first side of said frame, said portion being disposed generally beneath the first and second rotational axes; a first pivotal support arm pivotally supporting said first stub axle, said first pivotal support arm being pivotally coupled to said frame below the top surface; a second pivotal support arm pivotally supporting said first stub axle, said second pivotal support arm being pivotally coupled to said frame; and a first wheelhousing carried by said frame and located inboard and above said first wheel, said first wheelliousing including a dividing member located inboard of said first wheel, said dividing member having a lower, outboard section proximate to said first stub axle and proximate to said first pivotal support arm; wherein said first pivotal support arm includes a downwardly concave portion adapted and configured to provide clearance from the section of said dividing member during jounce of said first wheel. 22. The suspension system of claim 21 wherein the lower outboard section of said dividing member is below the first rotational axis. 23. The suspension system of claim 21 wherein said first pivotal arm support is below the first rotational axis. 24. The suspension system of claim 21 which further comprises a shock absorber and a first wheel support, said first wheel support supporting said first stub axle, said first wheel support being pivotally coupled to said first support arm and to said second support arm, said shock absorber being pivotally coupled to said wheelhousing, said shock absorber being pivotally coupled to said first wheel support. 25. An apparatus for suspending a stub axle of a vehicle, comprising: a wheel support having a vertical section including means for attachment of the stub axle, a first lateral section to one side of said vertical section and a second lateral section to the other side of said vertical section; said first lateral section including a first upper pivot attachment for pivotal coupling to the vehicle and a first lower pivot attachment for pivotal coupling to the vehicle, said first upper pivot attachment being spaced above said first lower pivot attachment and being spaced below the rotational axis of an attached stub axle; and said second lateral section including a second pivot attachment for pivotal coupling to the vehicle, said second pivot attachment being spaced below the rotational axis of an attached stub axle, said second pivot attachment being adapted and configured to establish a common pivot axis with one of said first upper pivot attachment or said first lower pivot attachment. 26. The apparatus of claim 25 wherein said second pivot attachment is a second upper pivot attachment, said second lateral section including a second lower pivot attachment for pivotal coupling to the vehicle, said second lower pivot attachment being spaced below said second upper pivot attachment, said second upper pivot attachment establishing a first common pivot axis with said first upper pivot attachment, said second lower pivot attachment establishing a second common pivot axis said first lower pivot attachment. 27. The apparatus of claim 26 wherein said first common pivot axis is generally parallel to said second common pivot axis. 28. The apparatus of claim 25 wherein said wheel support includes means for attaching a shock absorber.

이 특허에 인용된 특허 (203)

이 특허를 인용한 특허 피인용횟수: 2

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특허 상세정보

Suspensions for low floor vehicles

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이 특허에 인용된 특허 (203)

이 특허를 인용한 특허 피인용횟수: 2

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Suspensions for low floor vehicles

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이 특허에 인용된 특허 (203)

이 특허를 인용한 특허 피인용횟수: 2

IPC 상위 출원인

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상세정보조회

원문조회

IPC 상세정보(version : 201201)

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