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Tilting motor vehicles and their motor vehicle front brackets

A technology for a motor vehicle and a bracket, which is applied in the field of a tilted motor vehicle and the front bracket of the motor vehicle, can solve the problems of poor driver control, steering accuracy, and inaccurate directionality.

Active Publication Date: 2020-07-10
PIAGGIO & C SPA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In fact, the deviation between the wheel planes makes the directionality of the vehicle set by the steering angle of the handlebars less precise, and the transmission of the wheel reaction forces (albeit parallel to each other) to the handlebars gives the driver poor handling and steering precision, as well as inattentive steering that in some cases caused relatively unnecessary detours

Method used

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  • Tilting motor vehicles and their motor vehicle front brackets
  • Tilting motor vehicles and their motor vehicle front brackets
  • Tilting motor vehicles and their motor vehicle front brackets

Examples

Experimental program
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Embodiment Construction

[0036] With reference to the above-mentioned figures, reference number 4 designates generally a schematic overall view of a motor vehicle according to the invention.

[0037] For the purposes of the present invention, it should be noted that the term motor vehicle should be taken broadly to include any motor cycle having at least three wheels, ie two aligned wheels and at least one rear wheel as better described below. Such a definition therefore also includes so-called quadricycles with two wheels on the front carriage and two wheels on the rear axle.

[0038] The motor vehicle 4 includes a frame 6 extending from a front bracket 8 supporting at least two front wheels 10 to a rear axle 12 supporting one or more rear wheels 14 . A distinction can be made between a front left wheel 10' and a front right wheel 10", where the definitions of left 10' and right 10" are purely formal and meant relative to the driver of the vehicle. Said wheels are arranged to the left and to the rig...

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PUM

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Abstract

A motor vehicle front cradle (8) comprising: a front cradle frame (16) kinematically connected to a pair of front wheels (10', 10") of the front cradle frame (16) by means of an articulated quadrilateral , the articulated quadrilateral comprises a pair of cross members hinged to the front carriage frame (16) at corresponding intermediate hinges, said cross members being connected together at respective opposite transverse ends by uprights which are at corresponding Pivoted to said transverse ends at the side hinges of . Wherein, each of the uprights (48, 48', 48") guides and supports a stub shaft mechanically connected to the swivel pin of the front wheel, the front bracket The frame (8) also includes, corresponding to each stub axle, a steering link mechanically connected to the associated stub axle to allow the stub axle and associated front wheels (10', 10") to rotate about the respective steering axis (S'‑S', S ”‑S”) steering.

Description

technical field [0001] The invention relates to a tilting motor vehicle and its front bracket of the motor vehicle. Background technique [0002] As is known, three-wheeled motor vehicles of the prior art have rear drive wheels and two steering and tilting wheels, ie rolling or tilting at the front. [0003] Thus, the rear wheels are intended to provide torque and thus allow traction, while the paired front wheels are intended to provide directionality to the vehicle. [0004] Using two front wheels instead of two rear wheels avoids the use of a differential for torque transfer. This can achieve cost and weight reductions at the rear axle. [0005] In addition to steering, the paired wheels at the front bracket can tilt and roll: thus, a vehicle with two wheels at the front bracket is equivalent to a three-wheeled vehicle with two wheels at the rear axle An actual motorcycle, because just like a motorcycle, the vehicle is able to lean when cornering. [0006] However, co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62K5/01B62D9/02B62K5/027B62K5/08B62K5/10
CPCB62D9/02B62K5/01B62K5/027B62K5/08B62K2005/001B62K5/10B62D7/16B62D21/11B62D7/20B62D9/04B62K5/05B62L1/00
Inventor 安德烈亚·拉弗利
Owner PIAGGIO & C SPA