Motorcycle Wheel Support Tool for Tire Mounting Machines
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Solution Overview
Problem
Tire mounting-demounting machines for automobiles are not adaptable for motorcycle wheels due to size differences and risk interference with motorcycle wheel components like brake discs and chain sprockets during locking operations.
Innovation Solution
A tool with a grip-release device and locking mechanism, featuring adjustable elbow-shaped arms and a diameter adapter member, allows for secure engagement and locking of motorcycle wheels on a standard tire mounting-demounting machine, accommodating wheels with smaller diameters and bulky components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a standard tire mounting-demounting machine for automobiles is used, then it can handle automobile wheels with 40mm central holes, but it cannot accommodate motorcycle wheels with 18mm central holes
Solution Approach 1:
The invention divides the wheel engagement system into separate functional components: a base plate that attaches to the machine, adjustable arms for rim engagement, and a locking mechanism. This segmentation allows each component to be optimized independently and facilitates adaptation to different wheel sizes through reconfiguration rather than redesigning the entire machine.
Solution Approach 2:
The invention creates a universal adaptation system that can handle both automobile wheels (40mm holes) and motorcycle wheels (18mm holes) using the same base machine. The diameter adapter member and adjustable arms provide multi-functionality, allowing the single machine to serve multiple wheel types without requiring separate dedicated equipment for each wheel size category.
2Ease of operation
If expansion arms are used to engage motorcycle wheels, then engagement is possible, but the arms may impact or interfere with projecting portions like brake discs and chain sprockets
Solution Approach 1:
The arms are designed to be adjustable in both position and angle, allowing dynamic reconfiguration to match the specific geometry of different motorcycle wheels. This adjustability enables the operator to position the arms clear of brake discs and chain sprockets while maintaining effective engagement with the rim, eliminating interference issues through adaptive positioning.
Solution Approach 2:
The base plate serves as an intermediary between the machine and the wheel, providing a stable mounting foundation that separates the machine's locking mechanism from the wheel's peripheral components. This intermediary structure allows engagement forces to be applied centrally through the hub area, avoiding contact with projecting portions like brake discs and chain sprockets.
3Reliability
If a threaded pin or bar is inserted through the central hole to lock the rim, then secure locking is achieved, but the pin length must be much greater than rim thickness causing it to project from the rim
Solution Approach 1:
The locking mechanism uses a nested structure where the bar is inserted through the central hole and then received within a socket or recess in the base plate. This nesting arrangement contains the locking element within the footprint of the base plate assembly, preventing projection from the rim while maintaining the full length of the bar for secure engagement through the rim thickness.
Solution Approach 2:
Instead of extending the pin length in the radial direction (perpendicular to the rim surface), the invention resolves the locking requirement in a different dimension by using a longer bar that extends axially through the central hole and is contained within the base plate assembly. This dimensional reorientation achieves secure locking without radial projection that would interfere with wheel components.
4Adaptability or versatility
If the tool uses adjustable elbow-shaped arms for rim engagement, then adaptability to different rim sizes is improved, but the device complexity increases
Solution Approach 1:
The arm mechanism is divided into discrete segments connected by joints, allowing independent adjustment of each segment's position and angle. This segmentation enables compact storage when not in use and simple manual adjustment to different configurations, achieving high adaptability without requiring complex automated control systems or multiple complete arm assemblies.
Data Source
AI summary
The present invention disclosure relates to a tool for supporting and locking a rim or tired wheel in position on a tire mounting-demounting machine for automobile wheels equipped with support table with an axial hole or opening, the tool including grip-release device for a tired wheel (TW) or a rim (W) to be handled, and locking means for locking the grip-release device to the support table and/or for locking the rim (W) or tired wheel (TW) against components of the grip-release device.