A wheel unit mountable on a ski of a ski-mounted vehicle includes an actuating plate defining a wheel attachment section and a piston attachment section The actuating plate is pivotally attached to the ski intermediate the wheel and piston attachment sections for pivotal movement about a plate pivot
A wheel unit mountable on a ski of a ski-mounted vehicle includes an actuating plate defining a wheel attachment section and a piston attachment section The actuating plate is pivotally attached to the ski intermediate the wheel and piston attachment sections for pivotal movement about a plate pivotal axis. A wheel attachment assembly is provided for rotatably attaching the wheel to the wheel attachment section. An actuator is operatively coupled to the actuating plate for selectively pivoting the actuating plate about the plate pivotal axis between a plate deployed configuration and a plate retracted configuration wherein in the plate deployed configuration the position of the actuating plate is such that the wheel protrudes at least partially below the ski gliding surface for engaging the ground surface and in the plate retracted configuration the position of the actuating plate is such that the wheel is retracted above the ski gliding surface for preventing the wheel from engaging the ground surface. A plate transversal moving assembly is operatively coupled to the actuating plate for selectively moving the actuating plate substantially transversally relative to the ski.
대표청구항▼
The embodiments of the invention in which an exclusive privilege or property is claimed are defined as follows: 1. A wheel unit mountable on a ski of a ski-mounted vehicle, said ski having a ski gliding surface for traveling over a ground surface, a substantially opposed ski upper surface, a ski in
The embodiments of the invention in which an exclusive privilege or property is claimed are defined as follows: 1. A wheel unit mountable on a ski of a ski-mounted vehicle, said ski having a ski gliding surface for traveling over a ground surface, a substantially opposed ski upper surface, a ski inner side surface, a substantially opposed ski outer side surface, said ski defining a ski longitudinal axis; said wheel unit comprising: an actuating plate, said actuating plate defining a wheel attachment section and a piston attachment section, said actuating plate being pivotally attached to said ski substantially intermediate said wheel and piston attachment sections for pivotal movement about a plate pivotal axis; a wheel attachment means for rotatably attaching said wheel to said wheel attachment section for rotation about a wheel rotation axis; an actuator operatively coupled to said actuating plate for selectively pivoting said actuating plate about said plate pivotal axis between a plate deployed configuration and a plate retracted configuration wherein in said plate deployed configuration the position of said actuating plate is such that said wheel protrudes at least partially below said ski gliding surface for engaging said ground surface and in said plate retracted configuration the position of said actuating plate is such that said wheel is retracted above said ski gliding surface for preventing said wheel from engaging said ground surface; a plate transversal moving means operatively coupled to said actuating plate for selectively moving said actuating plate substantially transversally relative to said ski. 2. A wheel unit as recited in claim 1 wherein said plate transversal moving means is operatively coupled to said actuating plate so as to automatically move said actuating plate substantially transversally relative to said ski longitudinal axis in a predetermined direction upon said actuating plate being pivoted about said plate pivotal axis, wherein when said actuating plate is pivoted towards said plate deployed configuration said actuating plate is simultaneously displaced substantially laterally outwardly relative to said ski-mounted vehicle and when said actuating plate is pivoted towards said plate retracted configuration said actuating plate is simultaneously displaced substantially laterally inwardly relative to said ski-mounted vehicle; whereby when said actuating plate is simultaneously pivoted towards said plate deployed configuration and displaced substantially laterally outwardly relative to said ski-mounted vehicle said wheel is moved towards a wheel ground engaging position and when said actuating plate is simultaneously pivoted towards said plate retracted configuration and displaced substantially laterally inwardly relative to said ski-mounted vehicle said wheel is moved towards a wheel ground clearing position, said wheel ground engaging position being located at a lower and more outwardly lateral location then said wheel ground clearing position. 3. A wheel unit as recited in claim 1 wherein said actuator is a piston-type actuator, said piston-type actuator having a piston rod and a piston sleeve, said piston rod being movable relative to said piston sleeve between a rod receded configuration and a rod extended configuration; said wheel unit also including a piston-to-plate coupling means for coupling said piston rod to said piston attachment section of said actuating plate, said piston-to-plate coupling means allowing the conversion of the linear movement of said piston rod between said rod receded and extended configurations into a pivotal movement of said actuating plate about said plate pivotal axis between said plate retracted and plate deployed configurations. 4. A wheel unit as recited in claim 3 wherein said piston-to-plate coupling means includes a rod coupling pin extending substantially laterally from said piston rod and a guiding slot formed in said piston attachment section of said actuating plate, said guiding slot being configured, sized and positioned for receiving and slidably guiding at least a portion of said rod coupling pin for converting the linear movement of said piston rod between said rod receded and extended configurations into a pivotal movement of said actuating plate about said plate pivotal axis between said plate retracted and plate deployed configurations. 5. A wheel unit as recited in claim 4 wherein said actuating plate defines a plate first surface and a plate second surface, said guiding slot extending through said piston attachment section of said actuating plate between said plate first and second surfaces; said piston-to-plate coupling means including a rod coupling block anchored to said piston rod, said rod coupling block defining a block abutment surface facing substantially towards said plate first surface, said rod coupling block extending substantially perpendicularly from said block abutment surface; said piston-to-plate coupling means also including a pin retaining component mounted on said rod coupling pin in an outwardly spaced relationship relative to said block abutment surface so as to define a circumferential plate receiving section on said rod coupling pin between said pin retaining component and said block abutment surface; said plate receiving section being inserted in said guiding slot with said block abutment surface and said pin retaining component positioned substantially adjacent respectively to said plate first and second surfaces for preventing the lateral withdrawing of said rod coupling pin from said guiding slot as said rod coupling pin slides along said guiding slot. 6. A wheel unit as recited in claim 4 wherein said actuating plate has a substantially elongated configuration, said actuating plate defining a plate first longitudinal edge and a plate second longitudinal edge, said plate first longitudinal edge being located substantially above said plate second longitudinal edge when said actuating plate is in said plate retracted configuration; said guiding slot defining a slot proximal end and a slot distal end said slot proximal and distal ends being positioned respectively more proximally and more distally relative to said wheel attachment section, said guiding slot having a substantially curved configuration and being substantially convex relative to said plate first longitudinal edge. 7. A wheel unit as recited in claim 6 wherein said plate pivotal axis and said slot proximal end are located substantially at the same height, said guiding slot being provided with a slot locking segment located substantially adjacent to said slot proximal end, said slot locking segment having a smaller radius of curvature then the remainder of said guiding slot. 8. A wheel unit as recited in claim 6 wherein said slot proximal and distal ends are also located respectively more proximally and distally relative to said plate second longitudinal edge, said guiding slot being configured and sized so that said slot distal end is located in a substantially overlying relationship relative to said wheel rotation axis when said actuating plate is in said plate deployed configuration. 9. A wheel unit as recited in claim 8 wherein said piston sleeve is pivotally attached to said ski by a piston-to-ski attachment means for allowing said piston sleeve to remain attached to said ski while pivoting relative to said ski about two different sleeve pivotal axes; said piston sleeve being attached to said ski so as to pivot substantially upwardly and laterally outwardly relative to said ski longitudinal axis when said piston rod moves from said rod receded configuration towards said rod extended configuration. 10. A wheel unit as recited in claim 9 wherein said piston-to-ski attachment means includes a ball and socket-type assembly. 11. A wheel unit as recited in claim 9 wherein said wheel and piston attachment sections of said actuating plate are angled relative to each other such that when said actuating plate is in said plate deployed configuration, said wheel attachment section is in a substantially parallel relationship relative to said ski longitudinal axis and said piston attachment section is in a substantially parallel relationship relative to said piston-type actuator. 12. A wheel unit as recited in claim 9 wherein said wheel unit includes a unit mounting structure for mounting said wheel unit to said ski, said unit mounting structure including a base plate defining a base plate first end and a substantially opposed base plate second end, said base plate having a pair of first mounting flanges and a pair of second mounting flanges extending substantially perpendicularly therefrom respectively adjacent said base plate first and second end; a first mounting slot and a second mounting bolt extend respectively between said first and second pairs of mounting flanges; a piston mounting wall extends substantially upwardly from said base plate substantially adjacent said base plate first end. 13. A wheel unit as recited in claim 12 further comprising a guard plate extending from said unit mounting structure for at least partially shielding said piston-type actuator. 14. A wheel unit as recited in claim 1 wherein said plate transversal moving means includes a substantially cylindrical biasing bar, said biasing bar defining a bar first end, a longitudinally opposed bar second end; said biasing bar being attached to said actuating plate substantially adjacent to said bar first end for rotating jointly therewith about said plate pivotal axis; a bar receiving sleeve, said bar receiving sleeve having a sleeve peripheral wall defining a sleeve channel for receiving at least a portion of said biasing bar; said biasing bar being at least partially insertable in said sleeve channel for rotation therein about said plate pivotal axis and for sliding movement therein along said plate pivotal axis; a tongue and groove arrangement mechanically coupling said sleeve peripheral wall and said biasing bar such that upon said biasing bar being rotated about said plate pivotal axis, said biasing bar is induced into a translational sliding movement along said plate pivotal axis by the configuration of said groove part of said tongue and groove arrangement. 15. A wheel unit as recited in claim 14 wherein said tongue and groove arrangement includes a tongue extending substantially radially outwardly from the outer surface of said biasing bar and said groove is formed in said sleeve peripheral wall. 16. A wheel unit as recited in claim 15 further comprising a protective cover for at least partially shielding said bar receiving sleeve and anchoring the latter to the remainder of said wheel unit. 17. A wheel unit mountable on a ski of a ski-mounted vehicle, said ski having a ski gliding surface for traveling over a ground surface, a substantially opposed ski upper surface, a ski inner side surface, a substantially opposed ski outer side surface, said ski defining a ski longitudinal axis; said wheel unit comprising: an actuating plate, said actuating plate defining a wheel attachment section and a piston attachment section, said actuating plate being pivotally attached to said ski substantially intermediate said wheel and piston attachment sections for pivotal movement about a plate pivotal axis; a wheel attachment assembly for rotatably attaching said wheel to said wheel attachment section for rotation about a wheel rotation axis; an actuator operatively coupled to said actuating plate for selectively pivoting said actuating plate about said plate pivotal axis between a plate deployed configuration and a plate retracted configuration wherein in said plate deployed configuration the position of said actuating plate is such that said wheel protrudes at least partially below said ski gliding surface for engaging said ground surface and in said plate retracted configuration the position of said actuating plate is such that said wheel is retracted above said ski gliding surface for preventing said wheel from engaging said ground surface; a plate transversal moving assembly operatively coupled to said actuating plate for selectively moving said actuating plate substantially transversally relative to said ski.
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이 특허에 인용된 특허 (7)
Schneider Richard J. (20 Malaspina Dr. Eagle River AK 99577), Aircraft ski mounting assembly.
Herzberger, Erick; Clavreul, Jean-Francois, Motorised airplane with mixed hydrodynamic and aerodynamic structure for take-off and landing on water, ground or snow.
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