A tilting saddle motor vehicle with lightened rolling four-bar linkage

IL314768BActive Publication Date: 2026-08-01PIAGGIO & C SPA
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Patent Information

Application Number
IL314768
Authority / Receiving Office
IL · IL
Patent Type
Patents
Current Assignee / Owner
Priority Date
2022-02-08
Filing Date
2023-02-07
Publication Date
2026-08-01
Estimated Expiration
2043-02-07

AI Technical Summary

Technical Problem

The existing rolling four-bar linkages in tilting motor vehicles are cumbersome and heavy, affecting the cost and maneuverability of the vehicles while providing insufficient mechanical strength.

Method used

A modified rolling four-bar linkage design with asymmetrical half-crosspieces, where one crosspiece is longer and directly hinged to the uprights, and the other is shorter and not directly hinged, reducing weight and cost while maintaining mechanical strength by forming a single rigid body with central elements.

Benefits of technology

The design achieves a lighter and more cost-effective rolling four-bar linkage with enhanced maneuverability and mechanical strength, reducing the overall weight and number of bearings, thus improving the vehicle's stability and ease of use.

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Patent Text Reader

Abstract

The tilting motor vehicle comprises a pair of steering front wheels (17A, 17B), linked to the frame (3) of the motor vehicle (1) through a rolling four-bar linkage (21). The rolling four-bar linkage comprises an upper crosspiece (23) and a lower crosspiece (25) linked to each other by uprights (27A, 27B) forming the rocker arms of the four-bar linkage. One of the two crosspieces consists of a front half- crosspiece and a rear half-crosspiece, both hinged to the two uprights. The other half- crosspiece comprises two half-crosspieces, only one of which is hinged at the ends thereof to the two uprights, while the other half-crosspiece is shorter, and it is not hinged to the uprights.
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