Electronic Keyboard Pedal Structure for Hidden Floor Stability
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Solution Overview
Problem
Existing pedal devices for musical instruments, particularly electronic keyboards, lack a stable and balanced configuration that prevents the instrument from moving during play and maintains a visually appealing design.
Innovation Solution
A pedal device with adjustable setting members and cushioned pedal leg portions that allow secure attachment to the floor, utilizing leverage principles to minimize movement and enhance stability, while being concealed within the instrument's footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pedal device includes exposed leg portions for floor attachment, then the instrument can be securely attached to the floor, but the visual appearance becomes cluttered and less sleek
Solution Approach 1:
The pedal leg portions are nested within the instrument case structure, specifically positioned inside the projected area defined by the keyboard housing. This allows the attachment mechanism to be concealed while still functioning, resolving the contradiction between visible aesthetics and functional stability.
2Shape
If the pedal device uses a compact configuration within the instrument footprint, then the visual appearance remains sleek, but the stability and balance may be compromised
Solution Approach 1:
The pedal mechanism utilizes the vertical dimension and internal space of the instrument case rather than extending outward. By positioning the pedal leg portions within the existing instrument footprint and using the depth of the case for attachment, the design achieves compactness without sacrificing stability.
3Adaptability or versatility
If the pedal device includes adjustment mechanisms for floor setting, then adaptability to different floor surfaces is improved, but the device complexity increases
Solution Approach 1:
The pedal leg portions serve multiple functions: they provide structural support for the pedal mechanism, enable floor attachment, and offer adjustable positioning for different floor surfaces. This multi-functionality reduces the need for separate adjustment components, thereby maintaining simplicity while achieving adaptability.
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 pedal device ensures stability and reduces the risk of the instrument moving during play, maintaining a sleek appearance by integrating the leg portions and adjustment mechanisms within the instrument's projected area.
Implementation Method 1
a coil spring as a biasing member that generates an elastic force so as to bias the pedal upwards
Implementation Method 2
a cushion member that functions as a lower limit restricting member for the pedal
Data Source
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AI summary
A pedal device (50) has a pedal case (53) including an opening portion (53a);a base member (100, 150) on which the pedal case (53) is provided; a pedal (52) projecting outwards of the pedal case (53) via the opening portion (53a) and provided rotatably by a rotational shaft (55) supported by a bearing portion (153) provided on the base member (100, 150); and a pedal leg portion (200) provided on the base member (100, 150), including a setting member (201) provided in such a manner as to be brought into abutment with a setting surface (FL), and projecting outwards of the pedal case (53) on a side where the pedal (52) projects.