Coffee grinder with folding-type handle
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Solution Overview
Problem
Miniaturized hand-cranked coffee grinders have shortened rotating handles, requiring increased force to operate and causing inconvenience due to a smaller rotating radius, which degrades the user experience.
Innovation Solution
A coffee grinder with a folding-type handle design that includes a sliding bar and pin shaft mechanism, allowing the handle to be folded, connected to a rotor and rotating shaft, and featuring silent ball bearings for stability and ease of use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the hand-cranked coffee grinder is miniaturized to improve portability, then the device becomes more portable and compact, but the rotating handle becomes excessively short requiring increased force to operate
Solution Approach 1:
The patent applies the dynamics principle by making the handle telescopic rather than fixed. The handle can extend to a longer length during operation to provide sufficient leverage and rotating radius, then retract to a compact length for portability. This dynamic adjustment resolves the contradiction between compact size and ease of operation.
2Length of moving object
If the rotating handle is shortened to reduce device size, then the grinder becomes more compact, but the rotating radius becomes excessively small causing operational troubles
Solution Approach 1:
The telescopic handle structure allows the rotating radius to be dynamically adjusted. During grinding operation, the handle extends to provide a sufficient rotating radius for comfortable operation. When not in use, the handle retracts to minimize the device's overall dimensions.
3Adaptability or versatility
If the handle is made foldable to enhance portability, then the device becomes more convenient to carry, but the structural complexity increases
Solution Approach 1:
The handle is segmented into multiple sections that can telescope relative to each other. This segmentation allows the handle to extend and retract while using simple cylindrical sections that fit within one another, minimizing structural complexity while achieving the foldable/telescopic function for enhanced portability.
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 folding handle design reduces labor required for grinding, enhances portability, and provides a more flexible and safe user experience by allowing the grinder to be compact and easy to carry, while maintaining operational reliability.
Implementation Method 1
A top of the grinder body is disposed with a top cover, the top cover is disposed with a supporting frame, and a side of the supporting frame is disposed with a first sliding slot. The top cover is further disposed with a sliding bar, an end of the sliding bar is connected to the first sliding slot through a pin shaft
Implementation Method 2
an outer part of the grinding housing is sleeved with an anti-skid sleeve, and the anti-skid sleeve is disposed with a convex block
Data Source
AI summary
A coffee grinder with folding-type handle belongs to the field of coffee grinding technology and includes a grinder body and a handle. A top of the grinder body is disposed with a top cover, the top cover is disposed with a supporting frame, and a side of the supporting frame is disposed with a sliding slot. The top cover is further disposed with a sliding bar, one end of the sliding bar is connected to the sliding slot through a pin shaft, and the other end of the sliding bar is connected to the handle. The coffee grinder with folding-type handle has strong practicability, the handle of the grinder can be folded, and it is more convenient to carry and more flexible to use.