Hand-Pulled Reed Instrument Valve Block Design
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Solution Overview
Problem
Conventional hand-pulled reed instruments are mechanically complex, heavy, and costly, posing challenges for players, especially adolescents, due to their intricate assembly and weight, which existing solutions like pneumatic and electromagnetic sleeve valves have not adequately addressed.
Innovation Solution
A hand-pulled instrument design featuring a bellows with a valve arrangement that includes a smaller number of global air flow rectifying valves to control airflow for multiple reed valves, allowing for electronic control of reed valves and simplifying the mechanical complexity, using power-operated reed valves with a valve block configuration for weight reduction and ergonomic improvements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional mechanical valve arrangements are used in hand-pulled reed instruments, then precise control over reed airflow is achieved, but the instrument becomes mechanically complex and heavy
Solution Approach 1:
The patent replaces complex mechanical valve arrangements with a simplified valve system that uses fewer moving parts. The invention introduces a valve block configuration where multiple reed valves are controlled through a reduced number of air flow rectifying valves, eliminating the need for intricate mechanical linkages and reducing overall device complexity while maintaining control precision.
Solution Approach 2:
The patent combines multiple reed valves into valve blocks that share common air flow control mechanisms. By merging the control functions of individual reed valves into a unified valve arrangement with air flow rectifying valves, the system achieves precise control over multiple reeds simultaneously without requiring separate mechanical control for each valve, thereby reducing complexity.
2Ease of operation
If traditional valve arrangements with individual control for each reed are used, then precise tone control is achieved, but the number of parts increases and assembly becomes difficult
Solution Approach 1:
The patent merges multiple reed valves into integrated valve blocks where several reed valves are housed together and controlled through shared air flow rectifying valves. This consolidation reduces the total number of discrete parts, simplifies assembly procedures, and maintains precise tone control capability through the unified valve design.
Solution Approach 2:
The air flow rectifying valves serve multiple functions simultaneously: they control airflow to multiple reed valves, rectify air flow direction, and enable precise tone control across different reeds. This multi-functionality reduces the overall number of components needed while maintaining comprehensive control over the instrument's sound production.
3Device complexity
If pneumatic or electromagnetic sleeve valves are used to reduce mechanical complexity, then device complexity is reduced, but the instrument remains heavy and does not achieve sufficient weight reduction
Solution Approach 1:
The patent extracts and eliminates unnecessary heavy components from traditional valve systems by implementing a simplified valve block design. The invention removes complex mechanical linkages, heavy valve housings, and redundant parts, retaining only the essential air flow rectifying valves and reed valves in a compact configuration, thereby achieving significant weight reduction while maintaining functional complexity.
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 design significantly reduces weight and cost, enhances playability, and allows for a more natural playing experience with precise control over tone production, while maintaining the sound quality of traditional instruments.
Implementation Method 1
a bellows 2, which can be expanded and compressed and is designed to generate an airflow 3, 3' flowing onto the reeds 6 by expansion and compression
Implementation Method 2
an inflow control 4 with a valve arrangement 4a for controlling the inflow strength of the reeds 6 to be flown according to the music
Implementation Method 3
a flow straightening arrangement 4b for bringing about the same direction of reed flow in the case of bellows expansion and in the case of compression of the bellows
Data Source
Figure 1a
Figure 1b
Figure 1c
AI summary
A hand-operated instrument is proposed, comprising an expandable and compressible bellows designed to generate an airflow towards the reeds through expansion and compression; and an airflow control comprising a valve arrangement arranged to control the airflow towards the reeds in a musical manner, and a flow straightening arrangement arranged to ensure the same airflow direction towards the reeds during bellows expansion and bellows compression;wherein the valve arrangement comprises a number of reed valves, each controlling the flow to a single reed or, at most, to a less tonally consistent reed, and the flow-rectifying arrangement comprises a number of valves for airflow rectification, wherein the number of reed valves is greater than the number of valves for airflow rectification, and wherein a group of valves for airflow rectification is assigned to a larger group of reed valves for the common rectification of the airflow through them in such a way that the airflow through all reed valves of the group is common and rectified.