Bladder-Fixing Unit with Switching Mechanism for Variable Tire Sizes
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Solution Overview
Problem
Conventional bladder-fixing units are limited to handling tires of a specific size, making them unsuitable for tires of varying sizes.
Innovation Solution
A bladder-fixing unit with a switching mechanism that includes a cylindrical inner and outer body, where the outer body moves axially to contact the inner body, utilizing an elastic portion to secure the bladder to the shaft, allowing for adjustable fixation across multiple tire sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional bladder-fixing unit is designed for a specific tire size, then it can securely hold that specific size, but it cannot handle tires of other sizes
Solution Approach 1:
The connecting body is designed to switch between a fixed state (where it pressurizes and contacts the shaft body outer periphery) and a movable state (where it can move axially relative to the shaft body). This dynamic switching capability allows the same fixing unit to accommodate different tire sizes while maintaining secure fixation when needed
Solution Approach 2:
The bladder-fixing unit is designed with a switching mechanism that enables it to handle multiple tire sizes. The connecting body can adapt its fixation state based on the tire size requirements, making a single unit capable of performing multiple sizing functions that previously required multiple dedicated units
2Adaptability or versatility
If the connecting body is always fixed to the shaft body, then secure holding is achieved, but the bladder cannot expand properly to accommodate different tire sizes
Solution Approach 1:
The connecting body switches between fixed and movable states based on operational requirements. During bladder expansion for different tire sizes, it is in the movable state allowing axial movement. When secure holding is required, it transitions to the fixed state where it pressurizes against the shaft body outer periphery
Solution Approach 2:
The connecting body periodically transitions between movable and fixed states during the tire holding process. It moves axially to accommodate bladder expansion, then pressurizes and contacts the shaft body to secure the holding position, creating a rhythmic cycle of movement and fixation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the bladder-fixing unit to securely attach to tires of various sizes by switching between fixed and movable states, ensuring effective tire holding regardless of size variations.
Implementation Method 1
the elastic portion elastically deforms such that the contact portion approaches, pressurizes and comes into contact with the outer periphery of the shaft body
Implementation Method 2
the switching mechanism includes a biasing body which biases the outer cylindrical body in a direction in which the outer cylindrical body moves toward the one side in the axial direction relative to the inner cylindrical body
Implementation Method 3
the contact portion is made of material having a larger friction coefficient with respect to the shaft body than those of the other portions
Data Source
AI summary
A bladder-fixing unit fixes a bladder which expands in a tire to hold the tire,the bladder-fixing unit includes a shaft body inserted into the bladder, and a connecting body for fixing the bladder and for connecting the bladder and the shaft body to each other,the connecting body includes a switching mechanism for switching between a state where the connecting body pressurizes and comes into contact with an outer periphery of the shaft body and is fixed to the shaft body, and a movable state where the connecting body can move in an axial direction of the shaft body relative to the shaft body by releasing the state where the connecting body pressurizes and comes into contact with the outer periphery of the shaft body.