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OwnerLuciano Marabese, Riccardo Marabese +2inventors
InventorsLuciano Marabese, Riccardo Marabese, Norisha Mochizuhi, Timmy Meisner
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A four wheeled motorcycle vehicle, comprising: a frame (1), two pairs of two spaced apart swing arms (2FR, 2RR) pivotally mounted thereon at both ends on swing pivot axes (21F, 21R), wherein each swing arm (2FR, 2RR) bears a front (3FR) or rear (3RR) wheel at its other end on a wheel axis (31FR, 31RR); balancer beams (6F, 6R) rotatably mounted on rotation axes (61F) on the frame (1) near their centre, and a pair of at least two linking rods (7FR, 7RR), each linking rod (7FR, 7RR) being pivotally connected to one end of a balancer beam (SF, 6R) at one end and being pivotally connected to one of said swing arms (2FR, 2RR) at its other end. In the upright position of said vehicle one end of each of said linking rods (7FR, 7RR) is positioned below the swing plane extending through both swing pivot axes (21F, 21R) and both wheel axes (31FR, 31RR) of each pair of swing arms (2FR, 2RR), and the other end of each of said linking rods (7FR, 7RR) is positioned above said swing plane.
Motorcycle vehicle, comprising:
Motorcycle vehicle according to any one of the previous claims, wherein the length of said balancer beam (6) is greater than the distance between the inner sides of the two associated front or rear wheels (3) in the upright position of the motorcycle vehicle.
Motorcycle vehicle according to any one of the previous claims, wherein said balancer beam (6) is mounted on said frame (1) by means of a balancer carrier beam (4), which balancer carrier beam (4) is pivotally mounted on the frame (1) at the other end on a substantially laterally extending balancer pivot axis (41), and which beam (4) is further connected to the frame (1) at a distance from said pivot axis (41) by means of a shock absorber (5).
Motorcycle vehicle according to any one of the previous claims, wherein said motorcycle vehicle is a four wheeled motorcycle vehicle comprising one said balancer (6F), a pair of said linking rods (7FL, 7FR) and a pair of said swing arms (2FL, 2FR) on the front side of the frame (1) each bearing one of said front wheels (3FL, 3FR), and one said balancer (6F), a pair of said linking rods (7RL, 7RR) and a pair of said swing arms (2RL, 2RR) on the back side of the frame (1) each bearing one of said rear wheels (3RL, 3RR).
Motorcycle vehicle according to any one of the previous claims, wherein the distance between the parallel centre planes of the wheels (3) is constant and at least 300 mm, preferably at least 400 mm, more preferably at least 450 mm, whereas the distance between the centre points of said wheels (3) increases when the motorcycle vehicle leans.
Motorcycle vehicle according to any one of the previous claims, wherein the distance between the parallel centre planes of the wheels (3) is constant and at is smaller than 700 mm, more preferably smaller than 550 mm
Motorcycle vehicle according to any one of the previous claims, wherein said frame is provided with at least one pair of stopper protrusions (103) extending towards at least one pair of said swing arms (2) or moving parts connected therewith, such that the upward inclination of said swing arms (2) is limited.
Motorcycle vehicle according to any one of the previous claims, wherein said motorcycle vehicle is provided with a motor engine, wherein each of said two wheels (3) on a pair of swing arms (2) is provided with a driven sprocket wheel (20), wherein said engine drives two driving sprocket wheels (18), which in turn each drive one of said two driven sprocket wheels (20) by means of chains (16, 19), wherein said driving sprocket wheels (18) and/or said driven sprocket (20) wheels are one-way sprocket wheels.
Motorcycle vehicle according to any one of the previous claims, wherein said motorcycle vehicle is provided with a motor engine having a driving shaft (14) provided with a driving sprocket wheel (15) or gear wheel, wherein an intermediate shaft (21) comprising one driven sprocket wheel or gear wheel which is driven by said motor engine and two driving sprocket wheels (18) is rotatably mounted on the pivot axis of said swing arms (2), wherein each of said two wheels (3) on a pair of swing arms (2) is provided with a driven sprocket wheel (20) which is driven by a driving sprocket wheel on said intermediate shaft (21).
Motorcycle vehicle according to any one of the previous claims, wherein said motorcycle vehicle comprises one pair of said swing arms (2FL, 2FR) at the front side of the vehicle;
Dependencies are inferred from the claim text.