Keyboard Assembly via Integrated Mass Body Guide
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Solution Overview
Problem
Conventional keyboard apparatuses with mass bodies that pivotally move in response to key operations require skilled alignment and assembly, making the attachment process time-consuming and difficult, especially for multiple keys.
Innovation Solution
A keyboard apparatus design featuring a key frame with integrated mass bodies that pivotally move, utilizing a sloping surface and guide parts to facilitate easy attachment of keys by allowing simultaneous engagement of elastic members with mass bodies and automatic alignment of key guide parts, simplifying the assembly process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional key attachment methods are used with multiple engagement points, then reliable key connection is achieved, but assembly time and operational complexity increase significantly
Solution Approach 1:
The key pivot part is pre-formed as an integrated structure on the key frame before key assembly. The guiding surface is pre-configured to automatically guide the elastic member into the correct engagement position with the mass body, eliminating the need for separate alignment operations during assembly.
Solution Approach 2:
The elastic member serves as an intermediary element that connects the key to the mass body. It is elastically deformable and can be inserted through the key pivot part to engage with the mass body, facilitating the connection process while maintaining reliability.
2Manufacturing precision
If multiple engagement operations are performed simultaneously for each key, then proper key alignment and connection are achieved, but assembly skill requirements and operational difficulty increase
Solution Approach 1:
The guiding surface on the key pivot part automatically guides the elastic member into the correct position and orientation during insertion. The structure self-aligns the key components without requiring external alignment operations or skilled manual intervention, achieving precise positioning through the design itself.
Solution Approach 2:
The guiding surface is configured with a curved or sloped geometry that naturally directs the elastic member along a specific path during insertion. This curved surface facilitates automatic alignment by converting linear insertion motion into the required angular orientation for proper engagement.
3Reliability
If individual key attachment operations are performed, then each key is properly secured, but overall assembly productivity decreases
Solution Approach 1:
The key attachment structure is segmented into distinct functional elements: the key pivot part with guiding surface, the elastic member, and the mass body engagement features. This segmentation allows each component to perform its specific function independently, enabling simplified and faster assembly while maintaining secure connection.
Solution Approach 2:
The key pivot part and the guiding surface are merged into a single integrated structure on the key frame. This combination eliminates the need for separate alignment operations between multiple components, reducing assembly steps and improving productivity while ensuring reliable key attachment.
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 the complexity and time required for attaching multiple keys, enabling easier and more efficient assembly of keyboard apparatuses with improved operability.
Implementation Method 1
a driving part, and a driven part that corresponds to the driving part is provided in the mass body. In response to depression of the key, the driving part drives the driven part such that the mass body turns
Data Source
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AI summary
A keyboard apparatus having mass bodies that pivotally move in accordance with a key operation that facilitates key attachment operations. In a key unit, a plurality of keys having driving parts are integrally connected by a common base end part in a condition in which the keys are pivotally movable. A plurality of mass bodies have driven parts disposed in correspondence to the driving parts of the keys, respectively, and are disposed in a pivotally movable condition with respect to a key frame having a securing part. In an assembled state in which the common base end part is secured to the securing part and the driving parts are engaged with the corresponding driven parts, respectively, in response to a pivotal movement of each of the keys, the corresponding driven parts are driven by the driving parts, respectively, so that the corresponding mass bodies pivotally move. By moving the key unit in a longitudinal direction of the keys in a state in which the mass bodies are disposed in the key frame, the driving parts of all of the keys of the key unit simultaneously engage with the corresponding driven parts, respectively, and when the driving parts are simultaneously engaged with the driven parts, the common base end part is positioned at a position in which the common base end part can be secured to the securing part.