Modular Harmonica Element With Interlocking Blade Replacement
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Solution Overview
Problem
Current harmonica modules require replacement of the entire unit when a blade is damaged, making repair difficult and costly due to the need for specialized tools and expertise.
Innovation Solution
A modular harmonica element design featuring interlocking systems allows for the replacement of individual blades, enabling the construction of harmonica modules capable of producing musical notes, with a base part and interlocking systems that secure and align vibrating blades for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complete harmonica module is used with integrated reeds, then the structural integrity and sealing are improved, but the ease of repair deteriorates because the entire module must be replaced when a reed is damaged
Solution Approach 1:
The harmonica module is divided into separate functional components: a base piece with chambers and slots, and individual reed elements that can be independently removed and replaced. The interlocking system allows the reed assembly to be segmented from the base piece for maintenance purposes.
Solution Approach 2:
The reed assembly is extracted as a separate replaceable component from the base piece. When a reed is damaged, only the reed assembly needs to be removed and replaced, not the entire module, enabling easy repair while maintaining structural integrity.
2Manufacturing precision
If specialized tools and expertise are required for module replacement, then the manufacturing precision and assembly quality are improved, but the ease of operation deteriorates
Solution Approach 1:
The interlocking system is designed to be self-aligning and self-locking through complementary geometric features (protrusions and recesses). Users can assemble or replace components by simple manual insertion and rotation without requiring specialized tools or expertise, while still achieving precise alignment and secure connection.
3Reliability
If the entire module is replaced when a reed is damaged, then the reliability is maintained, but the loss of substance increases due to discarding functional components
Solution Approach 1:
Instead of discarding the entire module when a reed is damaged, only the defective reed element is replaced while the base piece and other functional components are retained and reused. This recovering approach reduces waste while maintaining the reliability of the harmonica module.
4Ease of repair
If a modular design with interlocking systems is used, then the ease of repair and customization are improved, but the device complexity increases
Solution Approach 1:
The interlocking system uses standardized geometric features (protrusions and recesses) that serve multiple functions: mechanical connection, alignment guidance, and sealing. This universal design approach enables ease of repair and customization without significantly increasing complexity, as the same interlocking mechanism handles multiple requirements.
Data Source
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AI summary
The present invention relates to an element for constructing a harmonica module that is able to produce at least one musical note. The element according to the invention is characterized in that it has a part (10) comprising two rectangular parallelepipedal walls (11 and 12) of the same length, and means (13) for joining the two walls (11, 12) lengthwise such that they form a dihedron with a right angle at the apex, the edge (14) of which is made up of the common lengths of the two walls; at least one hermaphroditic male-female interlocking system; means (17) for securing the interlocking system (15) to the part (10) such that it interlocks with another interlocking system (15) which is identical thereto after it has been rotated through 180 degrees about a direction parallel to the edge (14); and at least one longitudinal slot (18) made in the first wall (11) along a line parallel to said edge in order to receive at least one vibrating blade for the production of at least one musical note.