IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0069759
(2008-02-12)
|
등록번호 |
US-7641165
(2010-02-11)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
23 인용 특허 :
4 |
초록
▼
An adjustable rotation base includes a base housing and a transportation arrangement. The base housing has a bottom side, an upper side for coupling with the supporting post to support the outer umbrella in an upright manner, and a receiving cavity indently formed on the bottom side of the base hous
An adjustable rotation base includes a base housing and a transportation arrangement. The base housing has a bottom side, an upper side for coupling with the supporting post to support the outer umbrella in an upright manner, and a receiving cavity indently formed on the bottom side of the base housing, wherein the base housing includes a stationary unit provided at the bottom side for sitting on the ground surface in a stationary manner, and a plurality of transferring wheels rotatably supported at the bottom side of the base housing. The transportation arrangement is provided at the base housing to operate the base housing between an idle mode and a transportation mode in which the stationary unit is upwardly lifted to allow the transferring wheels being sitting on the ground surface, such that the base housing is adapted to be transported on the ground surface via the transferring wheels.
대표청구항
▼
What is claimed is: 1. An adjustable rotation base for supporting an outdoor umbrella having a supporting post on a ground surface, wherein the adjustable rotation base comprises: a base housing having a bottom side, an upper side for coupling with the supporting post to support the outer umbrella
What is claimed is: 1. An adjustable rotation base for supporting an outdoor umbrella having a supporting post on a ground surface, wherein the adjustable rotation base comprises: a base housing having a bottom side, an upper side for coupling with the supporting post to support the outer umbrella in an upright manner, and a receiving cavity indently formed on the bottom side of the base housing, wherein the base housing comprises a stationary unit provided at the bottom side for stationary sitting on the ground surface and a plurality of transferring wheels rotatably supported at the bottom side of the base housing; and an transportation arrangement provided at the base housing to operate the base housing between an idle mode and a transportation mode, wherein in the idle mode, the transferring wheels are suspenedly lifted up to define a clearance between the transferring wheels and the ground surface such the base housing is stationary sat on the ground surface via the stationary unit, and in the transportation mode, the stationary unit is upwardly and concurrently lifted to allow the transferring wheels being sitting on the ground surface, such that the base housing is adapted to be transported on the ground surface via the transferring wheels, wherein said transportation arrangement comprises an adjustment assembly coupling with said transferring wheels and a manual actuation unit manually and selectively operating said adjustment assembly to move said transferring wheels between said idle mode and said transportation mode, wherein said adjustment assembly comprises a transferring magnitude unit operatively coupled with said manual actuation unit and a leverage driving unit which comprises a central hub coupling with said transferring magnitude unit and a plurality of levers radially and pivotally coupled with said central hub to couple with said transferring wheels respectively, wherein when said manual actuation unit is operated for generating a rotational force, said central hub is lifted upwardly to drop down said transferring wheels at said transportation mode. 2. The adjustable rotation base, as recited in claim 1, wherein each of said levers has an inner pivot end pivotally coupled with said central hub and an outer end coupling with said respective transferring wheel, wherein each of said levers is pivotally coupled with said base housing between said inner pivot end and said outer end. 3. The adjustable rotation base, as recited in claim 2, wherein each of said levers has an inclined lower end portion coupling with said respective transferring wheel and an upper end portion pivotally coupled with said central hub, such that when said upper end portion of each of said levers is positioned horizontally, said lower end portion of said respective lever is upwardly and inclinedly extended to suspendedly support said transferring wheel. 4. The adjustable rotation base, as recited in claim 3, wherein said transferring magnitude unit comprises a driving angle gear supported in said base housing to couple with said manual actuation unit, a transferring magnitude angle gear coupling with said central hub, and a driving rod transversely supported in said base housing to couple between said driving angle gear and said transferring magnitude angle gear, such that said rotational force is transmitted to said central hub to drop down said transferring wheels at said transportation mode. 5. The adjustable rotation base, as recited in claim 4, wherein said magnitude angle gear has an outer threaded portion engaging with an inner threaded portion of said central hub, such that when said magnitude angle gear is rotated, said central hub is correspondingly driven to slide along said magnitude angle gear. 6. The adjustable rotation base, as recited in claim 5, wherein said transferring magnitude angle gear is extended parallel to said driving angle gear, wherein said driving rod is perpendicularly coupled between said transferring magnitude angle and said driving angle gear end-to-end to transmit said rotational force in a directional manner. 7. The adjustable rotation base, as recited in claim 6, wherein said manual activation unit comprises an actuation rod detachably coupling with said transferring magnitude unit and a handle member transversely extended from said handle member to drive said actuation rod to rotate so as to generate said rotational force. 8. The adjustable rotation base, as recited in claim 7, further comprising a rotary support rotatably supported at said receiving cavity of said base housing for coupling with the supporting post of the outer umbrella, and a control pedal releasably coupling with said rotary support to lock up a rotational movement of said rotary support in such a manner that when a stepping force is applied at said control pedal, said rotary support is released to freely rotate at said base housing. 9. The adjustable rotation base, as recited in claim 4, wherein said transferring magnitude angle gear is extended parallel to said driving angle gear, wherein said driving rod is perpendicularly coupled between said transferring magnitude angle and said driving angle gear end-to-end to transmit said rotational force in a directional manner. 10. The adjustable rotation base, as recited in claim 4, wherein said manual activation unit comprises an actuation rod detachably coupling with said transferring magnitude unit and a handle member transversely extended from said handle member to drive said actuation rod to rotate so as to generate said rotational force. 11. The adjustable rotation base, as recited in claim 5, further comprising a rotary support rotatably supported at said receiving cavity of said base housing for coupling with the supporting post of the outer umbrella, and a control pedal releasably coupling with said rotary support to lock up a rotational movement of said rotary support in such a manner that when a stepping force is applied at said control pedal, said rotary support is released to freely rotate at said base housing. 12. The adjustable rotation base, as recited in claim 1, wherein said transferring magnitude unit comprises a driving angle gear supported in said base housing to couple with said manual actuation unit, a transferring magnitude angle gear coupling with said central hub, and a driving rod transversely supported in said base housing to couple between said driving angle gear and said transferring magnitude angle gear, such that said rotational force is transmitted to said central hub to drop down said transferring wheels at said transportation mode. 13. The adjustable rotation base, as recited in claim 12, wherein said magnitude angle gear has an outer threaded portion engaging with an inner threaded portion of said central hub, such that when said magnitude angle gear is rotated, said central hub is correspondingly driven to slide along said magnitude angle gear. 14. The adjustable rotation base, as recited in claim 3, further comprising a rotary support rotatably supported at said receiving cavity of said base housing for coupling with the supporting post of the outer umbrella, and a control pedal releasably coupling with said rotary support to lock up a rotational movement of said rotary support in such a manner that when a stepping force is applied at said control pedal, said rotary support is released to freely rotate at said base housing. 15. The adjustable rotation base, as recited in claim 3, wherein said manual activation unit comprises an actuation rod detachably coupling with said transferring magnitude unit and a handle member transversely extended from said handle member to drive said actuation rod to rotate so as to generate said rotational force. 16. The adjustable rotation base, as recited in claim 2, wherein said transferring magnitude unit comprises a driving angle gear supported in said base housing to couple with said manual actuation unit, a transferring magnitude angle gear coupling with said central hub, and a driving rod transversely supported in said base housing to couple between said driving angle gear and said transferring magnitude angle gear, such that said rotational force is transmitted to said central hub to drop down said transferring wheels at said transportation mode. 17. The adjustable rotation base, as recited in claim 16, wherein said magnitude angle gear has an outer threaded portion engaging with an inner threaded portion of said central hub, such that when said magnitude angle gear is rotated, said central hub is correspondingly driven to slide along said magnitude angle gear. 18. The adjustable rotation base, as recited in claim 1, wherein each of said levers has an inclined lower end portion coupling with said respective transferring wheel and an upper end portion pivotally coupled with said central hub, such that when said upper end portion of each of said levers is positioned horizontally, said lower end portion of said respective lever is upwardly and inclinedly extended to suspendedly support said transferring wheel.
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