Abstract: A motor vehicle wheel suspension, comprising a guide wheel having an outer jacket comprising a wheel attachment for the connection of the guide wheel to a rotation pin of a wheel. The guide wheel extends between opposite axial upper and lower ends in correspondence of which it comprises attachments for its connection to connection elements of an associated frame, wherein said outer jacket internally encloses a damper and a spring. The outer jacket, in correspondence of one of said axial upper and lower ends comprises a slot for realizing a first attachment to connection elements of the frame, said slot housing a pin axially guided by said slot, the slot connecting a cavity inside the outer jacket with said pin. The outer jacket, in correspondence of the other of said axial upper and lower ends comprises a tilting hinge for realizing a second attachment to connection elements of the frame.
Abstract: The rear of a motorcycle with cardan suspension comprising a rear frame, a fork, hinged to said frame about a hinging axis, the fork rotatably supporting the rotation pin of a rear wheel of the motorcycle around a rotation axis, the fork supporting a cardan-shaft transmission comprising at least one first transmission shaft, suitable to be connected to a power take-off of an associable engine, at least one final shaft provided with a pinion rotatably connected to said rear wheel, wherein between the first transmission shaft and the final shape is interposed a first cardan joint, a floating arm that supports said pinion of the final shaft, the arm being floating around said rotation axis of the rear wheel. The floating arm comprises a cup portion arranged coaxially to the rotation pin and having at least an inner end that houses and supports said pinion.
Abstract: A motorcycle (1) including: a motorcycle body (2,3,4) extending along a longitudinal axis (L-L) and having a front part (2), a tail part (4) and a central part (3) comprised between the front part (2) and the tail part (4); at least two wheels (5,6) constrained to the motorcycle body (2,3,4), including a front wheel (5) and a rear wheel (6); a traction engine (7) constrained to the motorcycle body (2, 3, 4) and operatively connected to at least one of the wheels (5, 6); at least one headlight (12) fixed to the front part (2); at least one rear light (14) fixed to the tail part (4). The motorcycle (1) further includes a first auxiliary lighting device (30) fixed to the motorcycle body (2,3,4) and adapted to be electrically controlled in order to be activated and deactivated, wherein the first auxiliary lighting device (30) is arranged and oriented so that, when activated, it lights a ground portion (G1) being on the side and/or under the central part (3) of the motorcycle body (2,3,4).
May 25, 2017
November 7, 2019
Piaggio & C. S.p.A.
Mario Donato SANTUCCI, Stefano BARTOLOZZI
Abstract: A motor vehicle forecarriage comprises a forecarriage frame, a pair of front wheels kinematically connected to the forecarriage frame by means of an articulated quadrilateral, said articulated quadrilateral comprising a pair of cross members, hinged to the forecarriage frame in correspondence of middle hinges, said cross members being connected together, in correspondence of opposite transverse ends, by means of uprights pivoted to said transverse ends in correspondence of side hinges, the cross members and the uprights defining said articulated quadrilateral. Each of the uprights guides and supports a stub axle of a front wheel, each upright extending from an upper end to a lower end, wherein the left and right uprights rotatably support the left and right front wheels, respectively, around respective steering axes parallel to each other.
Abstract: A chain-tensioning rod, for an internal combustion engine with an overhead camshaft valvetrain to keep in tension a timing chain, includes a shoe, which is pressed against the timing chain, and a supporting arm of the shoe, allows a simple assembly of the arm and of the relative shoe because the shoe is formed by a monolithic piece having, on one side thereof, a sliding surface and on, the opposite side, a supporting surface and a contact element connected to the supporting surface by a longitudinal central rib; and the supporting arm is formed by an elongated sheet having a longitudinal pass-through slit extending from a distal end thereof, wherein it is open, so that insertion of the supporting arm on the supporting surface takes place by making said rib to slide in the slit, the rib operating as transversal locking device of the supporting arm on the supporting surface.
Abstract: A motorcycle transmission includes a swingarm which extends from one hinging end to a motorcycle chassis, defining an oscillation axis, at one connection end to a wheel, a homokinetic joint arranged on the side of the hinging end, and a geared coupling positioned on the side of the connection end. The homokinetic joint kinematically reciprocally connects a first end of an input shaft, connected to a power take-off, and a second end of an output shaft mechanically connected to the geared coupling. The geared coupling transmits motion to the wheel. The homokinetic joint performs an instantaneously constant transmission ratio between the first and the second end. The homokinetic joint is offset to the hinging end of the swingarm, in a vertical direction perpendicular to the support surface of the wheel and permits oscillation of the output shaft between a stroke start and a stroke end, parallel to the oscillation axis.
Abstract: Propulsion unit for an electric pedal assisted cycle (EPAC) comprising an electric machine having a stator and a rotor, rotatable about a motor axis, said rotor (16) being operatively connected to a crank pin, defining a crank axis, mechanically connected to the pedals, wherein the propulsion unit comprises at least an electronic unit for operating and controlling the functioning of the electric machine, wherein the propulsion unit comprises at least a pair of housings defining a containment space which houses the electric machine and at least partially the crank pin, wherein the propulsion unit comprises transmission means of the motion from the rotor to the crank pin, wherein the electronic unit is contained and supported inside said containment space by an intermediate support element.
October 27, 2015
Date of Patent:
August 27, 2019
PIAGGIO & C. S.p.A
Paolo Capozzella, Luca Carmignani, Luca Nuti, Giorgio Prosperini
Abstract: An motorcycle air intake structure includes: a container divided by a main baffle into two distinct chambers: a first chamber communicating externally and a second chamber communicating with a throttled body via a feeding duct; the two chambers separated by an air filter, positioned at the main baffle, the first and second chambers extending longitudinally side-by-side defining opposite sides of the air intake structure. The air intake further includes a pre-chamber accessing the first chamber, separated therefrom by a cross wall and communicating therewith via an access duct crossing said wall, with an inlet end thereof arranged in the pre-chamber and an outlet end thereof arranged in the first chamber, the pre-chamber arranged on the front side with respect to a forward vehicle direction. The pre-chamber includes a front access mouth; and a diverting baffle interposed between the access mouth and the inlet end of the access duct.
Abstract: A windscreen assembly (10) for a vehicle 1 is described, comprising:—a windscreen panel group (11, 12) comprising a windscreen panel (11) and a support structure (12) to support the windscreen panel (11); and—a wiper group (20. The wiper group (20) comprises a wiper (13), a drive motor group (14) for actuating the wiper (13), a tank (15) for a liquid and a pump (16) operationally connected to the tank (15). The wiper group (20) is supported by the windscreen panel group (11, 12) and said windscreen assembly (10) is configured to be removably coupled to said vehicle.
Abstract: A synchronizer (20) for a speed transmission which can be used aboard a vehicle, in particular a motorcycle, allows the possibility of selecting each gear in any moment, by guaranteeing as additional feature that of being able to exploit the effect of the exhaust brake independently from the engaged gear and independently from the motor regime, and it comprises: a primary shaft (8); a bell-shaped member (1) assembled on said primary shaft (8) having inside a friction cylindrical surface (18); a supporting element (2), revolvingly mounted on said primary shaft (8) and housed within said bell-shaped member (1); at least a shoe (3) having a friction profile localised within the outer edge of the supporting element (2) and faced towards the friction cylindrical surface (18) of the bell-shaped member (1), jointed to said supporting element (2) by a pair of arms (4) in an articulated quadrilateral configuration; and means for translating said shoe (3) by rotating said arms (4) both in clockwise and counterclockwise
Abstract: A cooling apparatus of an internal combustion engine of a water-cooled motor vehicle includes a cooling fan is controlled by the driveshaft faced to a radiator protected by a louver arranged on a side of the vehicle and receiving a substantially tangential air flow, allows improved air penetration through the radiator, the louver having: at least a current rib, parallel to the outer face of the radiator, extending in a direction concurrent with the motion direction, intermediate between the lower and top fastening edges further spaced-apart with respect thereto from the radiator with a C-like section, determining a space between louver and radiator deviating the motion of the air sucked by the fan; and a plurality of blades extending on both sides of the current rib, transversal to the motion direction of the motor vehicle, having a front leading edge, further spaced-apart from the radiator than the respective rear edge.
Abstract: A windscreen safety assembly comprising a windscreen panel (11), a support arm comprising a first part (12A) of arm for being attached to a vehicle, and a second part (13) of arm attached to the windscreen panel (11), at least one coupling element to rotatably couple the first and second part of arms (12A, 13) so that the second part of arm (13) is suitable to rotate around a rotation axis from a first angular position to a second angular position in a first direction and vice versa in a second direction, at least one blocking element to block the second part of arm (13) in the first angular position in a releasable manner, stop elements positioned between the first and second part of arms (12A, 13) to prevent the second part (13) of arm from rotating in the second direction starting from the first angular position.
Abstract: A vehicle with 3 or more wheels includes at least two wheels aligned on the same axis. The vehicle has an intermediate centerline plane between the wheels parallel to a direction of movement, including a mass suspended in relation to the wheels defining a passenger or containment compartment, and two suspension groups kinematically connecting the suspended mass to the two aligned wheels. An anti-roll stabilizer device has at least one compensation mass kinematically connected to the suspended mass via a guide and movable in relation thereto. The anti-roll stabilizer device has a drive of the compensation mass to distance or bring the compensation mass closer to the centerline plane on the side opposite the displacement of a barycenter of the suspended mass with respect to the same centerline plane, to oppose the displacement with respect to the centerline plane of the position of the barycenter of the suspended mass.
Abstract: An electric motor for starting internal combustion engines and a relative starting control system of such engine comprising said electric motor of the type with permanent magnets allows a more effective and simpler management of the internal combustion engine thereto the electric motor is connected, wherein a monitoring unit of the electric motor (EMU) and a monitoring unit of the internal combustion engine (ECU) are provided, wherein the electric motor comprises a direction sensor (18) providing a signal representing the rotation direction of the rotor (12) of the electric motor, which is connected to said monitoring unit of the internal combustion engine (ECU).
July 29, 2015
Date of Patent:
March 19, 2019
PIAGGIO & C. S.P.A.
Paolo Capozzella, Jury Cantini, Jeanpaul Milani