Vehicle Having An Adjustable Wheel Base
2 Assignments
0 Petitions
Accused Products
Abstract
The front wheels of the vehicle having an adjustable wheel base are joined to the front portion of a main frame, on which a vehicle seat is mounted. The upper ends of a pair of rotating arms are rotatably joined to the main frame. The lower ends of the rotating arms are rotatably joined to the rear wheels. The upper arms and the lower arm are provided rotatably connected together such that the main frame and the rear wheels are joined at the back of the rotating arms. The operating portion of the operating apparatus, on which the main frame is installed, is joined via the operating links to the rotating arms. By operating the operating apparatus, the rotating arms are rotated by the operating links and the rear wheels are moved with respect to the front wheels. Simultaneously, the inclination of the main frame is changed.
28 Citations
20 Claims
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1-5. -5. (canceled)
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6. A vehicle with an adjustable wheel base, comprising:
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a main frame connected to a vehicle seat including a front portion joined to front wheels at one end of said main frame in a longitudinal direction of the vehicle; rotating arms comprising upper ends and lower ends, said upper ends rotatably connected to locations of said main frame positioned farther away from said front portion than locations of said main frame that are connected to said front wheels, and said lower ends being connected to rear wheels; an operating apparatus comprising an installation portion pivotally connected to said main frame, and an operating portion interposed between said installation portion and said rotating arms and configured to move with respect to said installation portion; and wherein said rear wheels are moved longitudinally relative to said front wheels due to the driving of said operating apparatus urging a position between the upper and lower ends of said rotating arms and rotating said rotating arms about said upper ends, causing a change in the adjustable wheel base; and wherein an inclination of said vehicle seat connected to said main frame is changed in cooperation with said change in the adjustable wheel base. - View Dependent Claims (7, 8, 9, 10, 11)
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12. A vehicle with an adjustable wheel base, comprising:
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a main frame connected to a vehicle seat including a front portion connected to front wheels at one end of said main frame in a longitudinal direction of the vehicle; a pair of rotating arms comprising upper ends and lower ends, said upper ends rotatably connected to locations of said main frame positioned farther away from said front portion than locations of said main frame that are connected to said front wheels, and said lower ends being connected to rear wheels; an operating apparatus comprising an installation portion pivotally connected to said main frame, and an operating portion interposed between said installation portion and said rotating arms and configured to move with respect to said installation portion; a pair of first sub-links with one end pivotally connected to said operating portion and an other end pivotally connected to corresponding said rotating arm at corresponding positions of said rotating arms; wherein said position is between said upper end and said lower end of corresponding said rotating arm; a pair of second sub-links with one end pivotally connected to said operating portion and an other end pivotally connected to said main frame at corresponding locations of said main frame; and wherein said rear wheels are moved longitudinally relative to said front wheels due to the driving of said operating apparatus urging said rotating arms via said pair of first sub-links and rotating said rotating arms about said upper ends, causing a change in the adjustable wheel base; and wherein an inclination of said vehicle seat connected to said main frame is changed in cooperation with said change in the adjustable wheel base. - View Dependent Claims (13, 14, 15, 16, 17)
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18. A vehicle with an adjustable wheel base, comprising:
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a main frame connected to a vehicle seat including a front portion joined to front wheels at one end of said main frame in a longitudinal direction of the vehicle; rotating arms comprising upper ends and lower ends, said upper ends rotatably connected to locations of said main frame positioned farther away from said front portion than locations of said main frame that are connected to said front wheels, and said lower ends being connected to rear wheels; an operating apparatus comprising an installation portion pivotally connected to said main frame, and an operating portion interposed between said installation portion and said rotating arms and configured to move with respect to said installation portion; an upper arm including an upper arm upper end and an upper arm lower end; a lower arm including a lower arm upper end and a lower arm lower end; wherein said upper arm lower end is rotatably connected to said lower arm upper end; wherein said upper arm upper end is rotatably connected to a location of said main frame that is positioned farther away from said front portion than said locations of said main frame joined to said rotating arms; wherein said lower arm lower end is connected to said rear wheels; wherein said rear wheels are moved longitudinally relative to said front wheels due to the driving of said operating apparatus urging a position between the upper and lower ends of said rotating arms and rotating said rotating arms about said upper ends, causing a change in the adjustable wheel base; and wherein an inclination of said vehicle seat connected to said main frame is changed in cooperation with said change in the adjustable wheel base. - View Dependent Claims (19, 20)
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Specification