[특허]Suspension assembly with coaxial torsion bar

Air Suspensions, Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Suspension assembly with coaxial torsion bar

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B60G-003/12
미국특허분류(USC)	280/124.128; 280/124.11; 280/124.116; 280/124.153; 280/124.166; 280/124.177; 267/188; 267/189
출원번호	UP-0117283 (2008-05-08)
등록번호	US-7758056 (2010-08-09)
발명자 / 주소	VanDenberg, Ervin K. Croston, David H.
출원인 / 주소	Air Suspensions, Inc.
대리인 / 주소	Sand & Sebolt
인용정보	피인용 횟수 : 8 인용 특허 : 22

초록
▼

A vehicle suspension system includes a pair of suspension assemblies mounted on a pair of spaced vehicle frame members for supporting a vehicle body on the vehicle wheels. A torsion axle extends between the pair of suspension assemblies and terminates in a pair of stub shafts. The axle is mounted on a pair of spaced frame bars attached to the vehicle frame. An air spring extends between the vehicle frame and an outer end of a support arm mounted on the torsion axle. The stub shafts are supported within an outer tube of the torsion axle by a plurality of elastomeric members. One end of each stub shaft is connected to a spindle arm which has a spindle extending from an opposite end of the arm. The outer tube of the torsion axle pivotally supports the air spring support arm and the axis of the torsion axle is coaxial with the pivot axis of the air spring support arm to provide a more compact and sturdy suspension assembly.

대표
청구항
▼

The invention claimed is: 1. A vehicle suspension assembly for use with a vehicle having a frame comprising: a first frame adapted to be connected to the vehicle frame; a first air spring support arm pivotally mounted on the first frame having a pivot axis; a load path along which a load passing into the front frame travels; a torsion axle positioned along the load path with a torsion axle axis mounted on the first frame, wherein the pivot axis and the torsion axle axis are co-axial; a first air spring positioned along the load path attached intermediate the first frame and the air spring support arm spaced from the axis; and, wherein the torsion axle and the first air spring are part of the load path whereby the torsion axle and the first air spring are adapted to react to the load in series; and wherein a spindle arm is attached to an inner shaft of the torsion axle having a spindle pivot axis; and in which a wheel spindle is attached to a distal end of the spindle arm is attached co-axial with the torsion axle such that the pivot axis, torsion axle axis and spindle pivot axis are all co-axial. 2. The vehicle suspension assembly defined in claim 1 wherein the torsion axle has a hollow outer tube and the inner shaft and at least one elastomeric member mounted intermediate the outer tube and the inner shaft. 3. The vehicle suspension assembly defined in claim 2 wherein the outer tube of the torsion axle has multiple flat sides; and in which the air spring support arm includes a pair of spaced arm members having aligned openings formed therein for receiving the outer tube of the torsion axle therethrough. 4. The vehicle suspension assembly defined in claim 3 wherein the shape of the openings in the spaced arm members is complementary to the exterior configuration of the outer tube. 5. The vehicle suspension assembly defined in claim 2 wherein the shaft has a rectangular cross section; and in which four elastomeric members are located between flat sides of the shaft and the interior of the outer tube of the torsion axle. 6. The vehicle suspension assembly defined in claim 1 wherein the torsion axle includes an outer tube; in which the air spring support arm is pivotally mounted on the first frame by an axle collar secured to the frame; in which an inner bushing is mounted within said axle collar; and in which at least one contoured spacer is mounted between said inner bushing and the torsion axle. 7. The vehicle suspension assembly defined in claim 1 wherein a pair of spacer washers is mounted between the air spring support arm and the first frame. 8. The vehicle suspension assembly defined in claim 1 wherein the air spring support arm includes a pair of spaced arm members each of which has a generally L-shaped configuration with a first leg attached to the torsion axle and a second leg supporting the air spring. 9. The vehicle suspension assembly defined in claim 8 wherein an air spring support plate extends between distal ends of the second legs of the air spring arm members. 10. The vehicle suspension system as defined in claim 1 further comprising: a second frame adapted to be attached to the vehicle frame; a second air spring support arm pivotally mounted on the second frame whereby the second air spring support arm has the same pivot axis as the first air spring's pivot arm; and a second air spring attached intermediate the second frame and the second air spring support arm. 11. The vehicle suspension system as defined in claim 10 in which the first air spring support arm has a first pivot and the second air spring support arm has a second pivot, each of the first and second pivots having the same pivot axis; and in which the torsion axle has a center axis and in which the center axis and the pivot axis are collinear. 12. A suspension system for use with a vehicle having a frame comprising: a first frame adapted to attach to the vehicle frame; a first reaction member carried by the first frame and including a first axis; a second reaction member including a pivot axis connected to the first frame whereby translational movement of the second reaction member causes only rotational movement of the first reaction member; and wherein a load is first received at the first reaction member before the load is serially transferred to the second reaction member; and wherein a spindle arm is attached to an inner shaft of the first reaction member having a spindle pivot axis; and in which a wheel spindle is attached to a distal end of the spindle arm is attached co-axial with the first reaction member such that the pivot axis, first axis and spindle pivot axis are all co-axial. 13. The suspension system as defined in claim 12 in which the first reaction member is a torsion axle. 14. The suspension system as defined in claim 13 in which the second reaction member is an air spring. 15. The suspension system as defined in claim 12 in which the second reaction member has a top and a bottom, and in which the bottom of the second reaction member translates horizontally. 16. The suspension system as defined in claim 12 in which the second reaction member has a top and a bottom, and in which the bottom of the second reaction member translates vertically. 17. The suspension system as defined in claim 12 further comprising: an air spring support arm having a first end and a second end; in which the air spring is supported on the second end; and a pivot is carried by the first end whereby the pivot and the first axis are coaxial. 18. The suspension system as defined in claim 12 in which the first reaction member and the second reaction member react to forces in series. 19. The vehicle suspension assembly defined in claim 1 whereby the load path passes through the torsion axle, then through the first air spring and then into the first frame in series.

이 특허에 인용된 특허 (22)

이 특허를 인용한 특허 피인용횟수: 8

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특허 상세정보

Suspension assembly with coaxial torsion bar

초록
▼

대표
청구항
▼

이 특허에 인용된 특허 (22)

이 특허를 인용한 특허 피인용횟수: 8

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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특허 상세정보

Suspension assembly with coaxial torsion bar

초록 ▼

대표청구항 ▼

이 특허에 인용된 특허 (22)

이 특허를 인용한 특허 피인용횟수: 8

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

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처리중입니다.

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