Collapsible golf trolley, and a wheel structure for a mobile appliance
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B62B-001/12
A63B-055/08
출원번호
UP-0592863
(2005-03-17)
등록번호
US-7726670
(2010-06-22)
우선권정보
DK-2004 00426(2004-03-17)
국제출원번호
PCT/DK2005/000187
(2005-03-17)
§371/§102 date
20070126
(20070126)
국제공개번호
WO05/087568
(2005-09-22)
발명자
/ 주소
Manus, George
출원인 / 주소
Nordict A/S
대리인 / 주소
Birch, Stewart, Kolasch & Birch, LLP
인용정보
피인용 횟수 :
3인용 특허 :
9
초록▼
A collapsible golf trolley comprises a frame (176, 276) defined by at least two, preferably four, frame members (171,172,173,174, 203), and a wheel structure (122,222). The frame members are pivotally interconnected at hinges (106; 177, 205), whereby in a first configuration, the frame members defin
A collapsible golf trolley comprises a frame (176, 276) defined by at least two, preferably four, frame members (171,172,173,174, 203), and a wheel structure (122,222). The frame members are pivotally interconnected at hinges (106; 177, 205), whereby in a first configuration, the frame members define a casing (100,200) for the wheel structure parts, the casing having a length which is shorter than the sum of the lengths of each of the frame members. In a second configuration, the frame members coextend in a longitudinal direction to define the frame (176, 276). There is further provided a collapsible wheel structure having arms (150,152,258,252) defining pivotally interconnected arm sections (154,156,158,160; 254,256,258,260) which, in a first, folded configuration define a partial cylindrical shape, and which in a second, unfolded configuration form an S-shape.
대표청구항▼
The invention claimed is: 1. A collapsible golf trolley, comprising: a frame defined by at least two frame members, and a wheel structure comprising a plurality of interconnectable wheel structure parts, the at least two frame members being pivotally interconnected, whereby in a first configuration
The invention claimed is: 1. A collapsible golf trolley, comprising: a frame defined by at least two frame members, and a wheel structure comprising a plurality of interconnectable wheel structure parts, the at least two frame members being pivotally interconnected, whereby in a first configuration the two frame members define at least part of a casing for the wheel structure parts, the casing having a length which is shorter than the sum of the lengths of each of the frame members, and whereby in a second configuration the two frame members coextend in a longitudinal direction to define said frame, wherein the wheel structure is collapsible and comprises at least two wheels and a wheel suspension structure, the collapsible wheel suspension structure having a first, collapsed configuration, in which the wheel suspension structure and the wheels may be accommodated in the casing, and a second, unfolded configuration, in which the wheel structure constitutes a support for the frame, and wherein the wheel suspension structure has two supporting arms extending from and being interconnected at a centre element, whereby, in the unfolded configuration of the wheel structure, the supporting arms interconnect the wheels, the wheel structure being symmetrical around a central plane in the unfolded configuration. 2. A collapsible golf trolley according to claim 1, comprising at least four frame members, a first and a second of which, in the first configuration, defining a lower part of the casing, and a third and a fourth frame member defining an upper part of the casing in the first configuration. 3. A collapsible golf trolley according to claim 2, wherein the lower part of the casing is pivotally connected to the upper part around at least one first hinge arranged at one end of the casing, so that the casing may unfold from the first configuration into an intermediate configuration in which the frame members define a partially unfolded state of the trolley, the length of the trolley in the partially unfolded state being substantially twice the length of the casing. 4. A collapsible golf trolley according to claim 3, comprising a first locking device that mutually locks the upper and lower parts in the first configuration. 5. A collapsible golf trolley according to claim 3, wherein, in the intermediate configuration, the first and third frame member define a left part of the partially unfolded frame, and the second and fourth frame member define a right part of the partially unfolded frame, the left and right parts being pivotally interconnected around a second hinge arranged at one end of the partially unfolded frame, so that the partially unfolded frame may unfold from the intermediate configuration into the second configuration. 6. A collapsible golf trolley according to claim 5, comprising a second locking device that mutually locks the left and right parts in the intermediate configuration. 7. A collapsible golf trolley according to claim 1, wherein an outer and/or inner surface of the casing essentially defines a shape of a cylinder. 8. A collapsible golf trolley according to claim 7, wherein the wheel structure parts comprises at least two wheels, each having an outer diameter which is equal to or smaller than the inner diameter of the cylinder. 9. A collapsible golf trolley according to claim 7, wherein each of the frame members includes an arc-shaped supporting member defining an end portion of each frame member. 10. A collapsible golf trolley according to claim 9, wherein each frame member comprises a plurality of longitudinally extending rods which are mutually secured by one or more of the arc-shaped supporting members which extend transversely to the rods. 11. A collapsible golf trolley according to claim 1, further comprising at least one golf-bag supporting member which is releasably attachable to at least one of the frame members, the dimensions of the golf-bag supporting member being such that it may be accommodated in the casing. 12. A collapsible golf trolley according to claim 1, further comprising a handle which is pivotally connected to one of the frame members, so that the handle, in one configuration, extends in the longitudinal direction, and in another configuration extends in a transverse direction, whereby the handle defines an end surface of the casing in the first configuration of the frame members, when the handle extends in the transverse direction. 13. A collapsible golf trolley according to claim 12, further comprising a supporting wheel which is releasably connectable to an end portion of the frame remote from the handle. 14. A collapsible golf trolley according to claim 1, wherein each arm comprises a first section which, in the unfolded configuration, is proximal with respect to the central plane, and a second section which, in the unfolded configuration, is distal with respect to said central plane, said centre element thereby interconnecting the respective first sections of the two arms. 15. A collapsible golf trolley according to claim 14, wherein the first and second sections of each arm are pivotally interconnected, so that the two sections of each arm extend away from the central plane in the unfolded configuration, the second section of each arm thereby defining a hinged end, at which the second arm section is hinged to the first arm section, and an opposite end, at which a supporting device supports one of the wheels. 16. A collapsible golf trolley according to claim 15, wherein said supporting device comprises a rod which is pivotally mounted to the second arm section. 17. A collapsible golf trolley according to claim 16, wherein said rod is pivotally mounted in such a manner that that one of the wheels, which is supported by the rod, is pivotal between a non-operating position, in which an axis of rotation of the wheel is transverse to the second arm section, and an operating position, in which the axis of rotation of the wheel forms an extension of the second arm section. 18. A collapsible golf trolley according to claim 14, wherein each of the first and second arm sections are arc-shaped to define respective convex side surfaces and concave side surfaces. 19. A collapsible golf trolley according to claim 18, wherein, in the folded configuration of each arm, the convex side surface of the second arm section essentially co-extends with the convex side surface of the first arm section, and wherein, in the unfolded configuration of each arm, the convex side surface of the second arm section extends in continuation of the concave side surface of the first arm section. 20. A collapsible golf trolley according to claim 18, wherein the arc-shaped arm sections have a maximum outer diameter in the folded configuration which is approximately equal to the outer diameter of the wheels and/or approximately equal to the inner diameter of the casing. 21. A collapsible golf trolley according to claim 14, wherein one of the arm sections of each arm is defined by two mutually spaced arm members, between which at least a portion of the other arm section is received in the folded configuration. 22. A collapsible golf trolley according to claim 1, wherein the supporting arms and the centre element are pivotable in relation to each other. 23. A collapsible golf trolley according to claim 1, wherein the supporting arms and the centre element are slidable in relation to each other. 24. A collapsible golf trolley according to claim 1, wherein the at least two frame members are hinged to each other so as to allow said members to be rolled into the first configuration so as to define an essentially cylindrical configuration. 25. A collapsible golf trolley according to claim 24, wherein the wheel structure parts comprises at least two wheels defining end surfaces of the essentially cylindrical configuration. 26. A collapsible golf trolley according to claim 25, wherein the at least two wheels are permanently attached to the wheel structure. 27. A collapsible golf trolley according to claim 24, further comprising a locking device that locks the at least two frame members in the second configuration. 28. A collapsible wheel structure for a mobile appliance, comprising: at least two wheels; a wheel supporting structure having two supporting arms extending from and being interconnected at a centre element, whereby, in an unfolded configuration of the wheel structure, the supporting arms interconnect the wheels, the wheel structure being symmetrical around a central plane in the unfolded configuration; each arm comprising a first arm section which, in the unfolded configuration, is proximal with respect to the central plane, and a second arm section which, in the unfolded configuration, is distal with respect to said central plane, said centre element thereby interconnecting the respective first sections of the two arms; the first and second sections of each arm being pivotally interconnected, so that the two sections of each arm extend away from the central plane in the unfolded configuration, the second section of each arm thereby defining a hinged end, at which the second arm section is hinged to the first arm section, and an opposite end, at which a supporting device supports one of the wheels, wherein each of the first and second arm sections are arc-shaped to define respective convex side surfaces and respective concave side surfaces; whereby, in the folded configuration, the opposite end of each of the second arm sections is closer to the centre element than the hinged end of the second arm section. 29. A collapsible wheel structure according to claim 28, wherein the supporting arms and the centre element are pivotable in relation to each other. 30. A collapsible wheel structure according to claim 28, wherein the supporting arms and the centre element are slidable in relation to each other. 31. A collapsible wheel structure according to claim 28, wherein, in the folded configuration of each arm, the convex side surface of the second arm section essentially co-extends with the convex side surface of the first arm section, and wherein, in the unfolded configuration of each arm, the convex side surface of the second arm section extends in continuation of the concave side surface of the first arm section, so that the arms essentially define the form of an S in the unfolded configuration. 32. A collapsible wheel structure according to claim 28, wherein the arc-shaped arm sections have a maximum outer diameter in the folded configuration which is approximately equal to the outer diameter of the wheels. 33. A collapsible wheel structure according to claim 28, wherein one of the arm sections of each arm is defined by two mutually spaced arm members, between which at least a portion of the other arm section is received in the folded configuration. 34. A collapsible wheel structure according to claim 28, wherein said supporting device comprises a rod which is pivotally mounted to the second arm section. 35. A collapsible wheel structure according to claim 34, wherein said rod is pivotally mounted in such a manner that that one of the wheels, which is supported by the rod, is pivotal between a non-operating position, in which an axis of rotation of the wheel is transverse to the second arm section, and an operating position, in which the axis of rotation of the wheel forms an extension of the second arm section. 36. A mobile appliance comprising a collapsible wheel structure according to claim 28.
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