Rotatable Cup Handle Design for Dual Grip and Lifting Yoke Function
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Solution Overview
Problem
Cups with both a lifting yoke and a grip face significant weight and size increases, compromising convenience and usability.
Innovation Solution
A multifunctional cup handle that can be converted between a cup lifting yoke and a cup grip, utilizing a locking device with a fixed shaft and handle shaft hole that rotates and locks at different positions to adapt to user needs, reducing weight and size while maintaining flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a cup is provided with both a lifting yoke and a grip, then both carrying convenience and drinking convenience are improved, but weight and size are greatly increased
Solution Approach 1:
The bending handle is designed to perform multiple functions: it can be rotated to a highest position to form a lifting yoke for carrying, or to a lowest position to form a grip for drinking. This multi-functional design eliminates the need for separate lifting yoke and grip components, thereby reducing overall weight while maintaining both carrying and drinking convenience
Solution Approach 2:
The handle is designed as a dynamic component that can rotate around the fixed shaft between different positions (highest position for lifting yoke, lowest position for grip). This dynamic transformation allows a single component to adapt to different usage scenarios, providing both lifting and gripping functions without the weight penalty of having both components simultaneously
2Adaptability or versatility
If a cup is provided with both a lifting yoke and a grip, then both carrying convenience and drinking convenience are improved, but size is greatly increased
Solution Approach 1:
The bending handle serves dual purposes as both a lifting yoke and a grip through rotational transformation. By using one component for multiple functions, the overall size of the cup assembly is reduced compared to having separate dedicated components for lifting and gripping
Solution Approach 2:
The rotatable handle mechanism allows the same physical component to occupy different spatial configurations - forming a lifting yoke when rotated to the highest position and forming a grip when rotated to the lowest position. This dynamic reconfiguration reduces the maximum envelope size required compared to static dual-component designs
3Reliability
If a locking device is added to stop the handle shaft hole from rotating, then reliability of the locking mechanism is improved, but device complexity is increased
Solution Approach 1:
The locking device is designed to automatically lock the handle shaft hole at predetermined positions (highest and lowest positions) without requiring manual intervention. The locking bead and stopping groove mechanism engages automatically when the handle reaches these positions, providing reliable locking while maintaining simple structure through automatic operation
Solution Approach 2:
The locking function is integrated into the existing handle rotation mechanism by incorporating a locking bead on the fixed shaft and corresponding stopping grooves on the handle shaft hole. This merging of locking functionality with the rotational mechanism avoids adding separate complex locking systems while ensuring reliable positioning at desired angles
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
The solution allows for convenient and flexible use by enabling quick conversion between grip and yoke modes, reducing weight and size, and ensuring a firm and reliable locking mechanism with a simple structure and low cost.
Implementation Method 1
a spring and a locking bead provided in the mounting hole
Data Source
AI summary
A multifunctional cup handle includes a cup body. An upper portion of an outer side of a wall of the cup body is provided with a cup protrusion. A fixed shaft is provided on the cup protrusion. An upper end of a bending handle is provided with a handle shaft hole. The handle is sleeved on the fixed shaft. A locking device is provided on the fixed shaft. When a lower end of the bending handle is rotated to a highest position, the locking device locks the handle shaft hole, such that the lower end located directly above the cup body forms a lifting yoke of the cup body. When the lower end of the bending handle is rotated to a lowest position, the locking device locks the handle shaft hole, such that the bending handle at a side of the cup body forms a grip of the cup body.