IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0321921
(2009-01-26)
|
등록번호 |
US-7850184
(2011-02-10)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
3 |
초록
▼
A cargo trailer includes an elongated trailer frame having a longitudinal axis, a wheel mount arm having an end pivotally carried by the trailer frame, an axle arm segment extending from the end and a distal arm segment extending from the axle arm segment; at least one wheel carried by the axle arm
A cargo trailer includes an elongated trailer frame having a longitudinal axis, a wheel mount arm having an end pivotally carried by the trailer frame, an axle arm segment extending from the end and a distal arm segment extending from the axle arm segment; at least one wheel carried by the axle arm segment of the trailer frame; and at least one arm spring interposed between the trailer frame and the distal arm segment of the wheel mount arm.
대표청구항
▼
I claim: 1. A cargo trailer, comprising: an elongated trailer frame having a longitudinal axis; a wheel mount arm having an end pivotally carried by the trailer frame, an axle arm segment extending from the end and a distal arm segment extending from the axle arm segment; a pair of frame extensions
I claim: 1. A cargo trailer, comprising: an elongated trailer frame having a longitudinal axis; a wheel mount arm having an end pivotally carried by the trailer frame, an axle arm segment extending from the end and a distal arm segment extending from the axle arm segment; a pair of frame extensions extending from the trailer frame and a pair of frame pads carried by the pair of frame extensions, respectively; a hitch carried by the trailer frame, the hitch comprises a hitch bar carried by the trailer frame, a coupling member carried by the hitch bar and a hitch eye carried by the coupling member; a rotational coupler carried by the hitch bar and wherein the coupling member extends from the rotational coupler; at least one wheel carried by the axle arm segment of the trailer frame; and at least one arm spring interposed between the trailer frame and the distal arm segment of the wheel mount arm. 2. The cargo trailer of claim 1 further comprising a hitch support frame carried by the trailer frame and wherein the hitch is supported by the hitch support frame. 3. The cargo trailer of claim 2 wherein the hitch support frame comprises a pair of side support frame members carried by the hitch support frame and a cross member extending between the pair of side support frame members. 4. The cargo trailer of claim 1 further comprises a pair of cargo container mount members carried by the trailer frame and positionally adjustable along the longitudinal axis of the trailer frame, wherein each of the pair of cargo container mount members comprises an elongated mount shaft having first and second ends and a first pair of spaced-apart attachment flanges carried by the mount shaft at the first end and a second pair of spaced-apart attachment flanges carried by the mount shaft at the second end. 5. The cargo trailer of claim 1 wherein the trailer frame comprises a pair of elongated, spaced-apart side trailer frame members and a front transverse trailer frame member and a rear transverse trailer frame member carried by the side trailer frame members. 6. A cargo trailer, comprising: an elongated trailer frame having a longitudinal axis; a pair of cargo container mount members carried by the trailer frame and positionally adjustable along the longitudinal axis of the trailer frame; a first wheel mount arm and a second wheel mount arm pivotally carried by the trailer frame; wherein each of the first wheel mount arm and the second wheel mount arm comprises a flange arm segment pivotally carried by the trailer frame, an angled arm segment extending from the flange arm segment, an axle arm segment extending from the angled arm segment and a distal arm segment extending from the axle arm segment; a first arm spring and a second arm spring interposed between the distal arm segment of the first wheel mount arm and the trailer frame and the distal arm segment of the second wheel mount arm and the trailer frame, respectively; and a first wheel and a second wheel carried by the axle arm segment of the first wheel mount arm and the axle arm segment of the second wheel mount arm, respectively. 7. The cargo trailer of claim 6 wherein the trailer frame comprises a pair of elongated, spaced-apart side trailer frame members and a front transverse trailer frame member and a rear transverse trailer frame member carried by the side trailer frame members, and wherein the first wheel mount arm and the second wheel mount arm are pivotally carried by the side trailer frame members, respectively. 8. The cargo trailer of claim 7 further comprising a hitch carried by the front transverse trailer frame member of the trailer frame. 9. The cargo trailer of claim 8 wherein the hitch comprises a hitch bar carried by the front transverse trailer frame member of the trailer frame, a coupling member carried by the hitch bar and a hitch eye carried by the coupling member. 10. The cargo trailer of claim 9 further comprising a rotational coupler carried by the hitch bar and wherein the coupling member extends from the rotational coupler. 11. The cargo trailer of claim 7 further comprising a hitch support frame carried by the front transverse trailer frame member of the trailer frame and wherein the hitch is supported by the hitch support frame. 12. The cargo trailer of claim 11 wherein the hitch support frame comprises a pair of side support frame members carried by the front transverse trailer frame member of the hitch support frame and a cross member extending between the pair of side support frame members. 13. The cargo trailer of claim 7 wherein each of the pair of cargo container mount members comprises an elongated mount shaft having first and second ends and a first pair of spaced-apart attachment flanges carried by the mount shaft at the first end and receiving a first one of the side trailer frame members and a second pair of spaced-apart attachment flanges carried by the mount shaft at the second end and receiving a second one of the side trailer frame members, and further comprising a first mount bolt engaging the first pair of spaced-apart attachment flanges and a second mount bolt engaging the second pair of spaced-apart attachment flanges. 14. A cargo trailer, comprising: an elongated trailer frame having a longitudinal axis and first and second side trailer frame members and front and rear transverse trailer frame members extending between the first and second side trailer frame members; a pair of cargo container mount members carried by the first and second side trailer frame members, respectively, of the trailer frame and positionally adjustable along the longitudinal axis of the trailer frame; a first wheel mount arm and a second wheel mount arm pivotally carried by the first and second side trailer frame members, respectively, of the trailer frame, each of the first wheel mount arm and the second wheel mount arm having a flange arm segment pivotally carried by the trailer frame, an angled arm segment extending from the flange arm segment, an axle arm segment extending from the angled arm segment and a distal arm segment extending from the axle arm segment; a first attachment arm and a second attachment arm extending from the first and second side trailer frame members, respectively, of the trailer frame and a first arm sleeve and a second arm sleeve carried by the first attachment arm and the second attachment arm, respectively, and wherein the distal arm segment of the first wheel mount arm and the distal arm segment of the second wheel mount arm, respectively, extend through the first arm sleeve and the second arm sleeve of the first attachment arm and the second attachment arm, respectively; a first arm spring interposed between the first side trailer frame member and the distal arm segment of the first wheel mount arm and a second arm spring interposed between the second side trailer frame member and the distal arm segment of the second wheel mount arm; and a first wheel carried by the axle arm segment of the first wheel mount arm and a second wheel carried by the axle arm segment of the second wheel mount arm. 15. The cargo trailer of claim 14 further comprising a hitch support frame carried by the trailer frame and a hitch carried by the hitch support frame. 16. The cargo trailer of claim 14 further comprising a pair of frame extensions extending from the first side trailer frame member and the second side trailer frame member, respectively, and a pair of frame pads carried by the pair of frame extensions, respectively.
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