IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0631514
(2003-07-31)
|
등록번호 |
US-7261286
(2007-08-28)
|
발명자
/ 주소 |
- McConnell,Phillip A.
- Adoline,Jack W.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
20 |
초록
▼
A lift spring assembly has a compression spring rod with a housing having a longitudinal axis and axially opposite ends, and having a rod member coaxial with the axis and having an inner end in the housing and an outer end axially outwardly of one of the opposite ends. A guide member is provided on
A lift spring assembly has a compression spring rod with a housing having a longitudinal axis and axially opposite ends, and having a rod member coaxial with the axis and having an inner end in the housing and an outer end axially outwardly of one of the opposite ends. A guide member is provided on the inner end of the rod member for supporting the rod member during movement of the rod member. A first stage spring assembly extends between one of the opposite ends of the housing and the guide member. A second stage spring assembly extends between the other of the opposite ends of the housing and the guide member. A mounting member extending from one of the opposite ends of the housing for mounting the spring rod assembly to a hood assembly. A locking member is pivotally connected to the mounting member and pivots into locking engagement with one of the ends of the housing.
대표청구항
▼
Having thus described the preferred embodiment, the invention is now claimed to be: 1. A lift spring assembly, comprising: a compression spring rod assembly comprising a housing having a longitudinal axis and axially opposite ends; a rod member coaxial with said axis and having an inner end in said
Having thus described the preferred embodiment, the invention is now claimed to be: 1. A lift spring assembly, comprising: a compression spring rod assembly comprising a housing having a longitudinal axis and axially opposite ends; a rod member coaxial with said axis and having an inner end in said housing and an outer end axially outwardly of one of said opposite ends; a bushing adjacent said one of said opposite ends of said housing supporting said rod member for reciprocation axially of said housing between extended and retracted positions relative thereto; a guide member on said inner end of said rod member for supporting said rod member during movement of said rod member; a first spring assembly extending between one of said opposite ends of said housing and said guide member; a second spring assembly extending between the other of said opposite ends of said housing and said guide member; a mounting member extending from one of said opposite ends of said housing for mounting said spring rod assembly to an associated hood assembly; a locking member rotatably connected to said mounting member and extending along said axis of said housing, wherein said locking member pivots into locking engagement with one of said ends of said housing in response to compression of one of said first spring assembly and said second spring assembly and extension of one of said first spring assembly and said second spring assembly; wherein said locking member is of a one-piece construction and comprises a first arm having an opening therein for pivotally mounting said locking member onto said mounting member via a fastener; and, wherein said locking member further comprises a second arm extending at substantially 90 degrees from said first arm wherein each of said arms comprises a first end and a second end, wherein said first ends are pivotally attached to an end of said rod member extending beyond an end of said housing. 2. The lift spring assembly of claim 1, wherein said first spring assembly comprises three springs adjacent each other in a stacked relationship. 3. The lift spring assembly of claim 1, wherein said first spring assembly is in a compressed configuration when said associated hood is in a closed position. 4. The lift spring assembly of claim 3, wherein said second spring assembly is in an extended position when said associated hood is in a closed position. 5. The lift spring assembly of claim 1, wherein said second spring assembly extends between said guide member and said rod bushing coaxial with said axis for biasing said rod member toward the extended position thereof. 6. The lift spring assembly of claim 1, wherein said first spring assembly is in a fully extended position and said second spring assembly is in a compressed position when said associated hood is in a fully opened position. 7. The lift spring assembly of claim 1, wherein said first spring assembly is partially compressed and said second spring assembly engages said bushing of said rod assembly as the associated hood is balanced over its center of gravity. 8. The lift spring assembly of claim 1, wherein said locking member second arm engages one of said ends of said housing when said rod is in a fully extended position, thus preventing backward movement of said rod. 9. A two stage hood lift assembly, comprising: a hood pivotably mounted to an associated vehicle; a compression spring rod assembly, comprising: a housing having a longitudinal axis and axially opposite ends; a rod member coaxial with said axis and having an inner end in said housing and an outer end axially outwardly of one of said opposite ends; a first stage spring assembly extending along said longitudinal axis of said housing; a second stage spring assembly extending between an end of said first stage spring assembly and an end of said housing; a mounting member connected to said outer end of said rod member, said mounting member secures said compression rod assembly to said hood; and, a latch adjacent to and rotatably connected to said outer end of said mounting member, said latch member extends along said longitudinal axis of said housing, wherein said latch pivots into a locking position by contacting an end of said housing when said rod member is in an extended position in response to one of said first stage spring assembly and said second stage spring assembly being compressed and the other of said first stage spring assembly and said second stage spring assembly being extended; wherein said latch is formed of one piece and has two arms substantially 90 degrees from each other. 10. The two stage hood lift assembly of claim 9, further comprising a bushing adjacent said one of said opposite ends of said housing supporting said rod member for reciprocation axially of said housing between extended and retracted positions relative thereto. 11. The two stage hood lift assembly of claim 10, wherein said first stage spring assembly comprises three springs adjacent each other in a stacked relationship. 12. The two stage hood lift assembly of claim 10, wherein said second stage spring assembly extends between said guide member and said rod bushing coaxial with said axis for biasing said rod member toward the extended position thereof. 13. The two stage hood lift assembly of claim 10, wherein said first stage spring assembly is partially compressed and said second stage spring assembly engages said bushing of said rod assembly as the hood is balanced over its center of gravity. 14. The two stage hood lift assembly of claim 9, wherein said first stage spring assembly is in a compressed configuration when said hood is in a closed position. 15. The two stage hood lift spring assembly of claim 9, wherein said second stage spring assembly is in an extended position when said hood is in a closed position. 16. A two stage hood lift assembly comprising: a hood pivotably mounted to an associated vehicle; a compression spring rod assembly, comprising: a housing having a longitudinal axis and axially opposite ends; a rod member coaxial with said axis and having an inner end in said housing and an outer end axially outwardly of one of said opposite ends; a first stage spring assembly extending along said longitudinal axis of said housing; a second stage spring assembly extending between an end of said first stage spring assembly and an end of said housing; a mounting member connected to said outer end of said rod member, said mounting member secures said compression rod assembly to said hood; a latch rotatably connected to said outer end of said rod member, said latch extends along said axis of said housing, wherein said latch comprises a first arm having an opening therein for rotatably mounting said latch onto said mounting member via a fastener, wherein said latch further comprises a second arm extending from said first arm at a substantially 90-degree angle, wherein each of said arms comprises a first end and a second end, wherein said latch rotates when one of said first stage spring assembly and said second stage spring assembly is extended. 17. The two stage hood lift assembly of claim 16, wherein said first stage spring assembly is in a fully extended position and said second stage spring assembly is in a compressed position when said hood is in a fully opened position. 18. The two stage hood lift assembly of claim 16, wherein said latch engages one of said ends of said housing when said rod member is in a fully extended position, thus preventing backward movement of said rod member. 19. A lift spring assembly, comprising: a compression spring rod assembly comprising a housing having a longitudinal axis and axially opposite ends; a rod member coaxial with said axis and having an inner end in said housing and an outer end axially outwardly of one of said opposite ends; a guide member on said inner end of said rod member for supporting said rod member during movement of said rod member; a first spring assembly extending between one of said opposite ends of said housing and said guide member; a second spring assembly extending between the other of said opposite ends of said housing and said guide member; a mounting member extending from one of said opposite ends of said housing for mounting said spring rod assembly to an associated hood assembly; and, a locking member rotatably mounted to said mounting member and which rotates with respect to said mounting member, via an arm of said locking member, wherein said locking member is spaced apart from said housing and contacts only a distal end of said housing when said rod member is in an extended position; said locking member has a first arm of uniform width extending along its length and a length of said spring rod assembly; wherein said locking member rotates when one of said first spring assembly and said second spring assembly moves. 20. The lift spring assembly of claim 19, further comprising a bushing adjacent said one of said opposite ends of said housing supporting said rod member for reciprocation axially of said housing between extended and retracted positions relative thereto. 21. The lift spring assembly of claim 20, wherein said second spring assembly extends between said guide member and said rod bushing coaxial with said axis for biasing said rod member toward the extended position thereof. 22. The lift spring assembly of claim 20, wherein said first spring assembly is partially compressed and said second spring assembly engages said bushing of said rod assembly as the associated hood is balanced over its center of gravity. 23. The lift spring assembly of claim 19, wherein said first spring assembly is in a compressed configuration when said associated hood is in a closed position. 24. The lift spring assembly of claim 19, wherein said second spring assembly is in an extended position when said associated hood is in a closed position. 25. The lift spring assembly of claim 19, wherein said first spring assembly is in a fully extended position and said second spring assembly is in a compressed position when said associated hood is in a fully opened position. 26. The lift spring assembly of claim 19, wherein said first spring assembly comprises a single continuous spring. 27. The lift spring assembly of claim 26, wherein said second spring assembly comprises a first outer spring and a second inner spring positioned within said outer spring. 28. The lift spring assembly of claim 27, wherein said second inner spring is oppositely wound from said first outer spring. 29. The lift spring assembly of claim 19, wherein said first spring assembly comprises three springs adjacent each other in a stacked relationship. 30. The lift spring assembly of claim 29, wherein said second spring assembly comprises a first outer spring and a second inner spring positioned within said outer spring. 31. The lift spring assembly of claim 30, wherein said second inner spring is oppositely wound from said first outer spring. 32. The lift spring assembly of claim 30, wherein said inner spring is oppositely wound to said first and second outer springs. 33. The lift spring assembly of claim 29, wherein said second spring assembly comprises a single continuous spring. 34. The lift spring assembly of claim 19, wherein said first spring assembly comprises first and second outer springs and an inner spring positioned within said first and second outer springs. 35. The lift spring assembly of claim 34, wherein said second spring assembly comprises a first outer spring and a second inner spring positioned within said outer spring. 36. The lift spring assembly of claim 35, wherein said second inner spring is oppositely wound from said first outer spring. 37. The lift spring assembly of claim 34, wherein said second spring assembly comprises a single continuous spring.
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