A dynamically fitted key sliding structure and a keyboard musical instrument
By using a dynamically coordinated sliding key structure, the key-lever arm is switched between stationary and sliding states using the gradual structure of the elastic deformation component. This solves the problem of poor coordination between the keys and lever arms in traditional keyboard instruments, and improves the playing feel and stability.
CN224354987UActive Publication Date: 2026-06-12MEDELI MUSICAL INSTR ZHUHAI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MEDELI MUSICAL INSTR ZHUHAI
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
In traditional keyboard instruments, the relationship between the keys and the lever arm is simple, resulting in poor keyboard playing feel, static shaking noise, and excessive friction.
Method used
The key sliding structure adopts a dynamic fit. It uses a fixed part with a slot and a sliding moving part, combined with the gradual structure of the elastic deformation part, to form an interference fit in the static state. When sliding, it transforms into a clearance fit through elastic deformation and structural slippage, thus optimizing sliding and friction.
Benefits of technology
It achieves stability and linear touch during key sliding, eliminates static wobble noise, reduces frictional resistance, and provides more precise note control.
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Smart Images
Figure CN224354987U_ABST
Abstract
This utility model discloses a dynamically fitting sliding structure for piano keys and a keyboard instrument, comprising: a fixed component with a slot; a movable component that can slide relative to the fixed component; and an elastic deformation component fixed to the movable component and partially embedded in the slot. The outer contour of the elastic deformation component has a gradient structure and is configured such that: in a static state, the outer contour forms an interference fit with the inner wall of the slot through geometric constraints; during sliding, it is subjected to radial pressure, resulting in both structural slippage and elastic deformation, causing the fit gap to dynamically increase to a clearance fit state. In a static state, the contour structure of the elastic deformation component forms an interference fit with the slot, eliminating the movement gap to maintain system stability; when the piano key slides under force, this structure, through the synergistic effect of contour geometric slippage and material elastic deformation, automatically increases the fit gap during movement, transforming it into a clearance fit state with low frictional resistance, providing a more linear and stable touch and improving the playing experience.
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