Method for mounting keyboard device and rotating member

The keyboard device's innovative support and base member configuration with a guide groove system simplifies and secures the attachment of rotating members, addressing the challenges of time-consuming assembly and detachment, while enhancing key press information detection accuracy.

JP7873726B2Active Publication Date: 2026-06-12ROLAND CORP
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Patent Information

Application Number
JP2024543672
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-08-30
Publication Date
2026-06-12
Estimated Expiration
2042-08-30

AI Technical Summary

Technical Problem

The attachment of multiple rotating members in a keyboard device is time-consuming, and there is a risk of detachment after assembly, necessitating a method to facilitate attachment and prevent detachment.

Method used

A keyboard device with a support member and base member configuration that includes a mounting portion, wall portions, and a guide groove system, allowing for easy attachment and secure fixation of rotating members by sliding the rotating shaft along a guide groove and into an insertion hole, with elastic deformation to widen the distance between wall portions.

Benefits of technology

Facilitates efficient and secure attachment of rotating members, reducing assembly time and preventing detachment, while allowing for precise key press information detection with reduced dimensional and mounting errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

A holder 10 is formed by base parts 11a of to-be-attached parts 11 being connected together by means of flat-plate-like connecting parts 11b, 11c. Accordingly, the to-be-attached parts 11 (connecting parts 11b, 11c) can be flexed in a state before the holder 10 is fixed to a substrate 9. By bending the to-be-attached parts 11, shaft parts 13 formed on wall parts 12 can be easily inserted into insertion holes 71 of displacement members 7 because opposing intervals between the shaft parts 13 can be widened slightly. Accordingly, the workability of attachment work for the displacement members 7 can be improved. After the displacement members 7 are supported on the holder 10, the widening (the to-be-attached parts 11 are bent) of the opposing intervals between the shaft parts 13 of the wall parts 12 can be suppressed by fixing the holder 10 to the substrate 9 that has a greater stiffness than the holder 10. Accordingly, falling of the displacement members 7 from the holder 10 can be suppressed.
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Citation Information

Patent Citations

  • Keyboard device for electronic musical instrument

    JP1993038688U

  • Keyboard device for electronic musical instrument

    JP1993073029A

  • Support device for turning member of keyed instrument

    JP2003330450A

  • Keyboard device of keyboard instrument

    JP2015064536A

  • Keyboard device

    JP2015111235A