Keyboard Hammer Unit Temporal Locking Assembly
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Solution Overview
Problem
The assembly of hammer members in electronic keyboard instruments is inefficient due to the disorderly swinging of holding members when attached to the chassis, making the process difficult and time-consuming.
Innovation Solution
A hammer unit with a holding member that temporarily locks hammer members outside their restricted range, allowing them to be easily assembled and preventing disorderly swinging by releasing the lock when integrated into the keyboard instrument, enabling efficient attachment and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If hammer members are preassembled in blocks and attached to chassis, then working efficiency for assembling is improved, but hammer members freely and disorderly swing during attachment making assembling difficult
Solution Approach 1:
The holding member is provided with a temporal locking function that locks hammer members in a predetermined position before attachment to the chassis. This preliminary locking action prevents disorderly swinging during the attachment process, allowing efficient block assembly while maintaining control over hammer member positions.
2Device complexity
If holding member merely holds hammer members swingably, then device complexity is reduced, but hammer members freely swing making assembling difficult
Solution Approach 1:
The holding member incorporates a temporal locking mechanism that activates during assembly to fix hammer members in predetermined positions. This preliminary locking action provides simple yet effective control, preventing disorderly swinging while maintaining the overall simplicity of the holding member structure.
3Manufacturing precision
If hammer members are assembled separately one by one, then manufacturing precision is maintained, but working efficiency for assembling deteriorates
Solution Approach 1:
The assembly is divided into blocks of hammer members that are preassembled together. The holding member provides temporal locking to maintain precise relative positions of hammer members within each block during assembly, enabling efficient block-level assembly while preserving manufacturing precision through the locking mechanism.
Solution Approach 2:
The temporal locking function locks hammer members in predetermined positions before final attachment to the chassis. This preliminary action ensures precise positioning is maintained during the efficient block assembly process, allowing multiple hammer members to be assembled together without sacrificing precision.
Data Source
AI summary
A hammer unit of an electronic keyboard instrument to enhance working efficiency for assembling hammer members is provided. The hammer unit comprises a plurality of hammer members which apply loads to a plurality of keys, and a holding member which holds the plurality of hammer members. The holding member is configured to have one of a first holding state in which the plurality of hammer members are temporally locked at a first position and a second holding state in which the plurality of hammer members are released from the temporally locking at the first position.