초록 ▼

A chair is provided that includes a seat member, a back rest pivotally connected to the seat member, and first and second recline mechanisms. The seat member includes a first back rest support portion and a second back rest support portion. The back rest support portions each have a tooth-receiving

A chair is provided that includes a seat member, a back rest pivotally connected to the seat member, and first and second recline mechanisms. The seat member includes a first back rest support portion and a second back rest support portion. The back rest support portions each have a tooth-receiving member at an upper exterior surface. The recline mechanisms each include a lever mounted to the back rest. The lever of each recline mechanism has a tooth for receipt in a respective tooth-receiving member, and the lever is movable between an engaged state and a disengaged state. When the lever is in the engaged state, the tooth engages the tooth-receiving member to prevent rearward pivotal motion of the back rest relative to the seat member. When the lever is in the disengaged state, the tooth is disengaged from the tooth-receiving member. When the levers of the recline mechanisms are both in the disengaged state, the back rest is allowed to pivot relative to the seat member.

대표청구항 ▼

A chair is provided that includes a seat member, a back rest pivotally connected to the seat member, and first and second recline mechanisms. The seat member includes a first back rest support portion and a second back rest support portion. The back rest support portions each have a tooth-receiving

A chair is provided that includes a seat member, a back rest pivotally connected to the seat member, and first and second recline mechanisms. The seat member includes a first back rest support portion and a second back rest support portion. The back rest support portions each have a tooth-receiving member at an upper exterior surface. The recline mechanisms each include a lever mounted to the back rest. The lever of each recline mechanism has a tooth for receipt in a respective tooth-receiving member, and the lever is movable between an engaged state and a disengaged state. When the lever is in the engaged state, the tooth engages the tooth-receiving member to prevent rearward pivotal motion of the back rest relative to the seat member. When the lever is in the disengaged state, the tooth is disengaged from the tooth-receiving member. When the levers of the recline mechanisms are both in the disengaged state, the back rest is allowed to pivot relative to the seat member. age configuration to the deployed configuration and thereby move said at least one side panel from the storage configuration to the deployed configuration. 6. The airfoil of claim 5 wherein said at least one end panel structure is resiliently biased outwardly from the rear surface and said at least one side panel is resiliently biased toward the rear surface, and said actuation system operates to draw said at least one end panel structure in toward the rear surface to the storage configuration. 7. The airfoil of claim 6 wherein the actuation system comprises a cable system extending along the rear surface and connected to said at least one end panel structure. 8. The airfoil of claim 1 wherein said first and second side panels are mounted to respective pivotally mounted doors forming the rear surface and are pivotally movable with the doors to respective sides of the transport compartment. 9. An airfoil to reduce wind resistance of trucks and semi-trailers having a substantially planar rear surface, the airfoil being deployable from a storage configuration to a deployed configuration and comprising: first and second side panels forming a first pair of panels supported at the rear surface; each of said first and second side panels comprising laterally spaced proximal and distal edges and top and bottom edges, each said proximal edge defining a vertical pivot edge for pivotally attaching a respective one of said first and second panels adjacent a side of the planar rear surface, such that said side panels are pivotally movable between the storage configuration and the deployed configuration; top and bottom end panel structures forming a second pair of panels, each said end panel structure including a proximal edge defining a horizontal pivot edge for pivotally attaching a respective one of said top and bottom panels adjacent a top and bottom of the rear surface, said end panel structures including outer edges movable from the storage configuration adjacent the rear surface to the deployed configuration extending outwardly from the rear surface; an actuation system comprising at least one flexible structure extending from a side of the rear surface and having an end connected to at least one of said panels of the airfoil wherein said flexible structure is movable between an extended and a retracted position to actuate the airfoil in movement between the deployed configuration and the storage configuration, respectively; and one of said first and second pair of panels comprising an actuating pair of panels and the other of said first and second pair of panels comprising an actuated pair of panels, said actuation system causing said actuating pair of panels to pivot outwardly from the storage configuration to the deployed configuration, said panels of said actuating pair of panels including edges which engage and slide across inner surfaces on said panels of said actuated pair of panels such that said actuating pair of panels push said actuated pair of panels outwardly to the deployed configuration. 10. The airfoil of claim 9 wherein said top and bottom end panel structures comprise said actuating pair of panels and said first and second side panels comprise said actuated pair of panels. 11. The airfoil of claim 10 wherein a flexible structure is connected to each of said end panel structures for actuating said end panel structures in movement between the storage configuration and the deployed configuration. 12. The airfoil of claim 11 wherein said flexible structures each comprise a central cable member extending from a location adjacent the vertical pivot edge for each said side panel, and a pair of branch cable members extending upwardly and downwardly from said central cable members to said upper and lower panel structures, respectively, and including an actuator driver for causing movement of each of said central cable members between the extended and retracted positions. 13. The airfoil of claim 11 wherein said end p anel structures are biased to the deployed configuration and said side panels are biased to the storage configuration. 14. The airfoil of claim 9 wherein said top and bottom end panel structures each include a first and a second end panel member, said first end panel members located in sliding engagement with said first side panel, adjacent said top and bottom edges thereof, and said second end panel member located in sliding engagement with said second side panel, adjacent the top and bottom edges thereof. 15. The airfoil of claim 9 wherein each of said first and second side panels include a fold area extending substantially vertically between said top and bottom edges and located intermediate said proximal and distal edges, said side panels each folding at said fold area when said side panels are in the storage configuration. 16. The airfoil of claim 15 including an elongated frame portion defining a frame forming the rear surface wherein said flexible structure extends within said frame portion. 17. An airfoil to reduce wind resistance of trucks and semi-trailers having a substantially planar rear surface, the airfoil being deployable from a storage configuration to a deployed configuration and comprising: a first set of panels pivotally movable toward and away from each other; a second set of panels pivotally movable toward and away from each other in a direction perpendicular to a direction of movement of said first set of panels; said first set of panels being located folded under said second set of panels when in the storage configuration; and said first set of panels actuated for outward pivotal movement from the storage to the deployed configuration, and located for engagement with said second set of panels whereby actuation of said first set of panels from the storage to the deployed configuration includes an edge on each panel of said first set of panels engaging and pushing outwardly on an inner surface of a respective panel of said second set of panels in sliding engagement to move said second set of panels to the deployed configuration. 18. The airfoil of claim 17 wherein said second set of panels are resiliently biased toward the storage configuration. 19. The airfoil of claim 18 wherein said first set of panels are resiliently biased toward the deployed configuration. 20. An airfoil to reduce wind resistance of trucks and semi-trailers having a substantially planar rear surface, the airfoil being deployable from a storage configuration to a deployed configuration and comprising: first and second side panels supported at the rear surface, and each said first and second side panel including a front portion and a rear portion; each of said first and second side panels comprising laterally spaced proximal and distal edges and top and bottom edges, each said proximal edge defining a vertical pivot edge for pivotally attaching a respective one of the first and second panels adjacent a side of the planar rear surface; top and bottom end panel structures, each comprising first and second end panel members, each said end panel member including a proximal edge defining a horizontal pivot edge for pivotally attaching a respective one of the top and bottom panel members adjacent a top and bottom of the rear surface, said end panel members including outer edges movable from the storage configuration located adjacent the rear surface to the deployed configuration located extending outwardly from the rear surface wherein said outer edges slide in engagement with inner surfaces of said side panels to move said side panels from the storage configuration adjacent the rear surface to the deployed configuration extending outwardly from the rear surface and defining curved side surfaces for the airfoil when in the deployed configuration, each side surface having a single direction of curvature extending across respective front and rear portions; said first and second side panels each including a fold area extending su