[특허]Aerodynamic rear drag reduction system for a trailer

Wabash National, L.P.

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Aerodynamic rear drag reduction system for a trailer

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B62D-035/00 B62D-027/06
출원번호	US-0709980 (2015-05-12)
등록번호	US-9616944 (2017-04-11)
발명자 / 주소	Baker, Leonard W. Norris, Melvin R.
출원인 / 주소	Wabash National, L.P.
대리인 / 주소	Stewart, Carli E.
인용정보	피인용 횟수 : 2 인용 특허 : 108

초록
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A rear aerodynamic drag reduction system is configured to be coupled to a rear frame assembly of a trailer including a rear frame and a rear swing door. The rear drag reduction system includes a main wall panel configured to be coupled to the rear frame assembly to extend generally rearwardly of the trailer at least partially along a height of the trailer, and a secondary wall panel configured to be movably coupled to the rear swing door of the trailer to extend along a width of the trailer. The main wall panel and the secondary wall panel are each movable relative to the rear frame assembly between a deployed position and a stowed position. A locking mechanism of the drag reduction system is configured to releasably couple the main wall panel and the secondary wall panel to each other to prevent relative movement between the main wall panel and the secondary wall panel when the main and secondary wall panels are in their deployed positions.

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1. A rear aerodynamic drag reduction system configured to be coupled to a rear frame assembly of a trailer including a rear frame and a rear swing door, the drag reduction system comprising: a main wall panel configured to be coupled to the rear frame assembly to extend generally rearwardly of the trailer at least partially along a height of the trailer, wherein the main wall panel is movable relative to the rear frame assembly between a deployed position and a stowed position;a secondary wall panel configured to be movably coupled to the rear swing door of the trailer to extend generally rearwardly of the trailer at least partially along a width of the trailer, wherein the secondary wall panel is movable relative to the rear frame assembly between a deployed position and a stowed position; anda locking mechanism configured to releasably couple the main wall panel and the secondary wall panel to each other to prevent relative movement between the main wall panel and the secondary wall panel when the main and secondary wall panels are in their deployed positions,wherein the locking mechanism includes (i) a latch coupled to the one of the main wall panel and the secondary wall panel, the latch defining a slot, and (ii) a pin coupled to the other of the main wall panel and the secondary wall panel,wherein the pin is received within the slot when the main and secondary wall panels are in their deployed positions, andwherein the latch extends downwardly below an inner surface of the secondary wall panel and the pin extends upwardly above a top edge of the main wall panel when the main and secondary wall panels are in the deployed positions. 2. The rear aerodynamic drag reduction system of claim 1, wherein the main wall panel is configured to be pivotably coupled to the rear frame assembly, and the secondary wall panel is configured to be pivotably coupled to the rear swing door. 3. The rear aerodynamic drag reduction system of claim 2, wherein the main wall panel is configured to be pivotably coupled to the rear swing door of the rear frame assembly, and wherein the main wall panel is configured to pivot about an axis offset from an axis about which the rear swing door pivots. 4. The rear aerodynamic drag reduction system of claim 2, wherein the main wall panel is configured to be pivotably coupled to a vertical member of the rear frame of the rear frame assembly, and wherein the main wall panel is configured to pivot about an axis aligned with an axis about which the rear swing door pivots. 5. The rear aerodynamic drag reduction system of claim 1, wherein the locking mechanism includes a first portion coupled to the main wall panel and a second portion coupled to the secondary wall panel, and wherein the first and second portions are configured to releasably engage each other. 6. The rear aerodynamic drag reduction system of claim 1, wherein the latch is coupled to an inner surface of the secondary wall panel and the pin is coupled to an inner surface of the main wall panel. 7. The rear aerodynamic drag reduction system of claim 6, wherein the secondary wall panel includes an outer edge and a bottom edge when the secondary panel is in the deployed position, wherein the main wall panel includes a rear edge and a top edge when the main wall panel is in the deployed position, and wherein the latch is adjacent the outer and bottom edges of the secondary wall panel and the pin is adjacent the rear and top edges of the main wall panel. 8. The rear aerodynamic drag reduction system of claim 6, wherein the pin includes a head received within the slot when the main and secondary wall panels are in their deployed positions, and a body coupled to the inner surface of the main wall panel. 9. The rear aerodynamic drag reduction system of claim 8, wherein the body of the pin includes an upper portion offset from a lower portion. 10. The rear aerodynamic drag reduction system of claim 1, wherein the latch is integrally formed with the secondary wall panel and the pin is integrally formed with the main wall panel. 11. The rear aerodynamic drag reduction system of claim 1, wherein the locking mechanism is automatically moved to a locked position when a user moves the rear swing door to a fully-closed position, and the locking mechanism is automatically moved to an unlocked position when a user moves the rear swing door to a fully-opened position. 12. The rear aerodynamic drag reduction system of claim 11, wherein the main wall panel is automatically moved to the deployed position when a user moves the rear swing door to a fully-closed position, and wherein the main wall panel is automatically moved to the stowed position when a user moves the rear swing door to a fully-opened position. 13. A rear aerodynamic drag reduction system configured to be coupled to a rear frame assembly of a trailer including a rear frame and a rear swing door, the drag reduction system comprising: a main wall panel configured to be coupled to a vertical member of the rear frame to extend generally rearwardly of the trailer at least partially along a height of the trailer;a secondary wall panel configured to be coupled to the rear swing door of the trailer to extend generally rearwardly of the trailer at least partially along a width of the trailer; anda locking mechanism having a first portion coupled directly to the main wall panel and a second portion coupled directly to the secondary wall panel, wherein the first and second portions of the locking mechanism are coupled to each other when the main wall panel and the secondary wall panel are configured to extend rearwardly of the trailer,wherein the main wall panel is movable between a deployed position and a stowed position, wherein the secondary wall panel is movable between a deployed position and a stowed position, wherein the main wall panel is automatically moved to the deployed position and the first and second portions of the locking mechanism are automatically engaged with each other when a user moves the rear swing door to a fully-closed position. 14. The rear aerodynamic drag reduction system of claim 13, wherein the first and second portions of the locking mechanism are automatically disengaged with each other as the main and secondary wall panels are moved to the stowed position. 15. The rear aerodynamic drag reduction system of claim 12, wherein the secondary wall panel includes a first portion configured to be coupled to a top of the rear swing door and a second portion pivotably coupled to the first portion for movement about an axis parallel to a top edge of the rear swing door, and wherein the second portion of the locking mechanism is coupled to the second portion of the secondary wall panel. 16. The rear aerodynamic rear drag reduction system of claim 15, wherein the second portion of the secondary wall panel is configured to engage a top edge of the main wall panel when the main wall panel is in the deployed position, and wherein an inner surface of the second portion of the secondary wall panel is configured to engage and lie adjacent to an outer surface of the main wall panel when the main wall panel is in the stowed position. 17. A rear aerodynamic drag reduction system configured to be coupled to a rear frame assembly of a trailer including a rear frame and a rear swing door, the drag reduction system comprising: a main wall panel configured to be pivotably coupled to a vertical member of the rear frame to extend generally rearwardly of the trailer at least partially along a height of the trailer;a secondary wall panel configured to be pivotably coupled to the rear swing door of the trailer to extend generally rearwardly of the trailer at least partially along a width of the trailer; anda locking mechanism configured to releasably lock the main wall panel and the secondary wall panel to each other, the locking mechanism having (i) a first portion coupled directly to the main wall panel to extend above the main wall panel and (ii) a second portion coupled directly to an inside surface of the secondary wall panel,wherein the main wall panel and the secondary wall panel are movable relative to the rear frame assembly between deployed positions and stowed positions, andwherein the first portion of the locking mechanism is automatically received within a slot of the second portion of the locking mechanism when the main wall panel and the secondary wall panel are moved to their deployed positions.

이 특허에 인용된 특허 (108)

이 특허를 인용한 특허 피인용횟수: 2

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Aerodynamic rear drag reduction system for a trailer

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이 특허에 인용된 특허 (108)

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Aerodynamic rear drag reduction system for a trailer

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이 특허에 인용된 특허 (108)

이 특허를 인용한 특허 피인용횟수: 2

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IPC 상세정보(version : 201201)

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