Motorcycle Combined Braking System Mechanical Linkage
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing combined braking systems for motorcycles are mechanically complex and expensive, failing to provide a reliable and cost-effective solution for simultaneous front and rear braking, which can lead to safety hazards due to unbalanced braking.
Innovation Solution
A combined braking system with a simple mechanical design featuring interconnection mechanism between actuating cables for the front and rear braking devices, allowing for both single and combined braking operations through a Bowden cable configuration with elastic contrast means to ensure reliable and safe braking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If known combined braking systems are used, then reliable combined braking is ensured, but device complexity and cost increase
Solution Approach 1:
The patent merges the front and rear braking systems into a unified mechanical linkage. The lever system combines the front brake actuation and rear brake actuation into a single integrated mechanism, ensuring that when the front brake is applied, the rear brake is automatically engaged through the mechanical connection, providing reliable combined braking without complex electronic controls
Solution Approach 2:
The mechanical linkage serves multiple functions: it actuates the front brake directly, simultaneously actuates the rear brake through the connection, and provides a mechanical fail-safe that ensures combined braking even if one system fails. This multi-functionality reduces the need for separate control systems
2Reliability
If known combined braking systems are used, then combined braking is guaranteed, but manufacturing cost increases
Solution Approach 1:
The patent employs simple, inexpensive mechanical components such as levers, cables, and linkages instead of expensive electronic sensors, controllers, and actuators. These basic mechanical elements are cost-effective to manufacture and install, making combined braking accessible for a wider range of vehicles
Solution Approach 2:
The mechanical linkage is designed to automatically engage the rear brake when the front brake is applied, without requiring external control systems, electronic sensors, or complex coordination. The system self-regulates through pure mechanical advantage and geometric relationships
3Ease of operation
If unbalanced braking is applied, then braking response is simplified, but vehicle stability and safety deteriorate
Solution Approach 1:
The mechanical linkage is pre-configured to prevent unbalanced braking by automatically engaging the rear brake when the front brake is applied. The geometric arrangement and mechanical advantage ratios are designed in advance to ensure proper braking balance, preventing yaw and loss of adhesion before they can occur
Data Source
Figure 1a~2
Figure 1b~6
Figure 3~5
AI summary
Combined braking system (4) for vehicles (6) comprising: - at least a first braking device (8) operatively connected to a front wheel (12) located on a first axle (16) of the vehicle (6), - at least a second braking device (20) operatively connected to a rear wheel (24) located on a second axle (28) of the vehicle (6), - a first actuating cable (32) operatively connected to the first braking device (8) which can be connected to a first manual actuating lever (33), a second actuating cable (36) which can be operatively connected to the second braking device (20) and to a second manual actuating lever (34), - an interconnection mechanism (40) between the first and second actuating cables (32, 36) comprising: - a first rotating element (44) connected to the first actuating cable (32) so as to actuate the first braking device (8), when rotated under the traction action of said first actuating cable (32), - a fixed support (48) comprising a fixed abutment (52) and a second rotating element (56), crossed by the second actuating cable (36), - wherein the second rotating element (56), influenced in rotation by the traction action of the second actuating cable (36), is configured so as to intercept the first rotating element (44) and rotate it to also actuate the first braking device (8).