Lift axle suspension systems incorporating compression coil springs
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62D-061/12
B60G-009/00
B60G-009/02
B60G-011/27
B60G-017/02
B60G-017/027
출원번호
US-0083545
(2013-11-19)
등록번호
US-8967638
(2015-03-03)
발명자
/ 주소
Gottschalk, Michael J.
출원인 / 주소
Hendrickson USA, L.L.C.
대리인 / 주소
Cook Alex Ltd.
인용정보
피인용 횟수 :
0인용 특허 :
48
초록▼
A lift axle suspension system is provided with a frame bracket member connectable to a vehicle frame, an upper control arm, and a lower control arm. Each control arm has a first end and a second end, with the first end of each control arm being pivotally connected to the frame bracket member. The su
A lift axle suspension system is provided with a frame bracket member connectable to a vehicle frame, an upper control arm, and a lower control arm. Each control arm has a first end and a second end, with the first end of each control arm being pivotally connected to the frame bracket member. The suspension system also includes an axle connecting member connectable to an axle, with the second end of each control arm being pivotally connected to the axle connecting member. A compression coil spring having a first end connected to the lower control arm and a second end connected to the upper control arm serves as a lift mechanism for lifting and lowering the axle connected to the axle connecting member. The compression coil spring may encircle at least a portion of and be substantially coaxial with the lower control arm.
대표청구항▼
1. A lift axle suspension system control arm comprising: a first end configured to be pivotally connected to a vehicle frame bracket member;a second end configured to be pivotally connected to an axle connecting member;a compression coil spring positioned between the first and second ends, encirclin
1. A lift axle suspension system control arm comprising: a first end configured to be pivotally connected to a vehicle frame bracket member;a second end configured to be pivotally connected to an axle connecting member;a compression coil spring positioned between the first and second ends, encircling at least a portion of the control arm; anda restraint associated with the compression coil spring for maintaining the compression coil spring in an at least partially compressed condition. 2. The lift axle suspension system control arm of claim 1, wherein the restraint comprises a generally C-shaped clip. 3. The lift axle suspension system control arm of claim 1, further comprising a second restraint associated with the compression coil spring for maintaining the compression coil spring in the at least partially compressed condition. 4. The lift axle suspension system control arm of claim 3, wherein the restraints are substantially identical. 5. The lift axle suspension system control arm of claim 3, wherein each restraint comprises a generally C-shaped clip. 6. The lift axle suspension system control arm of claim 1, wherein the first end is associated with a first portion of the control arm,the second end is associated with a second portion of the control arm, andthe first and second portions of the control arm are removably connectable to each other. 7. The lift axle suspension system control arm of claim 6, further comprising a distance between the first and second ends thereof, wherein the first and second portions of the control arm are adjustably connectable to each other to vary the distance between the first and second ends. 8. The lift axle suspension system control arm of claim 6, wherein the first and second portions of the control arm are threadably mateable to each other. 9. The lift axle suspension system control arm of claim 1, further comprising a generally annular flange member secured to the control arm between the first end and the compression coil spring. 10. The lift axle suspension system control arm of claim 9, wherein one end of the compression coil spring is fixedly secured to the flange member. 11. A method for assembling a lift axle suspension system, comprising: Providing a vehicle frame including a vehicle frame bracket member and an axle including an axle connecting member;providing a control arm including first and second ends; a compression coil spring positioned between the first and second ends, encircling at least a portion of the control arm; and a restraint associated with the compression coil spring for maintaining the compression coil spring in an at least partially compressed condition;pivotally connecting the first end of the control arm to the vehicle frame bracket member;pivotally connecting the second end of the control arm to the axle connecting member; anddisassociating the restraint from the compression coil spring, thereby allowing the compression coil spring to move from the at least partially compressed condition to a less compressed condition. 12. The method of claim 11, wherein said providing a control arm includes providing a control arm in a partially assembled condition in which a first portion of the control arm is separate from a second portion of the control arm, with the first end of the control arm being associated with the first portion and the second end of the control arm being associated with the second portion. 13. The method of claim 12, wherein said pivotally connecting the first end of the control arm to a vehicle frame bracket member includes pivotally connecting the first end of the control arm to a vehicle frame bracket member with the control arm in the partially assembled condition and then connecting the first and second portions of the control arm to each other before said pivotally connecting the second end of the control arm to an axle connecting member. 14. The method of claim 12, wherein said pivotally connecting the second end of the control arm to an axle connecting member includes pivotally connecting the second end of the control arm to an axle connecting member with the control arm in the partially assembled condition and then connecting the first and second portions of the control arm to each other before said pivotally connecting the first end of the control arm to a vehicle frame bracket member. 15. The method of claim 12, further comprising threadably mating the first and second portions of the control arm to each other. 16. The method of claim 12, further comprising connecting the first portion of the control arm to the second portion of the control arm such that the first and second ends of the control arm are separated by a distance, and then adjusting the distance between the first and second ends of the control arm. 17. The method of claim 11, wherein said control arm comprises a lower control arm. 18. The method of claim 17, further comprising providing an upper control arm including a generally radially extending plate member;pivotally connecting a first end of the upper control arm to the vehicle frame bracket member;pivotally connecting a second end of the upper control arm to the axle connecting member; andpositioning the compression coil spring between the first end of the lower control arm and the plate member prior to said disassociating the restraint from the compression coil spring. 19. The method of claim 18, wherein said providing a control arm includes providing a lower control arm having a generally annular flange member secured thereto, andsaid disassociating the restraint from the compression coil spring includes allowing the compression coil spring to move into contact with the plate member and the flange member in said less compressed condition. 20. The method of claim 11, wherein said providing a control arm includes providing a control arm including a second restraint associated with the compression coil spring for maintaining the compression coil spring in an at least partially compressed condition, andsaid disassociating the restraint from the compression coil spring includes disassociating said restraint and said second restraint from the compression coil spring.
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이 특허에 인용된 특허 (48)
Timmers Richard E. (11425 University Dr. ; Coral Sand Estates ; Apache Junction Mesa AZ 85220), Air lift axle.
Gottschalk Michael J. (New Philadelpha OH) Keeler Michael J. (Canton OH), Parallelogram lift axle suspension system with a control for axle caster adjustment.
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