Scissors-Type Keyboard Connector with Stopper for Stable Assembly
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Solution Overview
Problem
Conventional keyboard devices face challenges in assembling the scissors-type connecting member efficiently and ensuring stability, as the manual process increases assembly time and makes the keyboard prone to disassembly under external forces.
Innovation Solution
A scissors-type connecting member design featuring a first frame with a rotating shaft and a second frame with a mounting part including an entrance, pivot hole, and stopper, which limits the rotating shaft's position, allowing for easier assembly and enhanced stability by preventing disassembly during drops or external impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the rotating shaft is inserted into closed pivot holes without a stopper, then the assembly process is simple, but the keyboard is prone to disassembly under external forces such as drops
Solution Approach 1:
The stopper is pre-installed in the mounting part before the rotating shaft is inserted. This preliminary action prevents the rotating shaft from being completely inserted through the pivot hole, thereby preventing disassembly under external forces while maintaining a relatively simple overall structure.
2Ease of manufacture
If manual propping open of the outer frame is required for assembly, then the structure can be assembled, but the assembly time increases and productivity decreases
Solution Approach 1:
The stopper is pre-installed in the mounting part before assembly, which preliminarily prepares the mounting part to guide and limit the rotating shaft during insertion. This eliminates the need for manual propping open of the outer frame, making the assembly process easier and more suitable for automated production, thereby improving productivity.
3Stability of the object's composition
If the rotating shaft is allowed to move freely in the pivot hole, then assembly is easier, but the position stability is poor and the keyboard may disassemble under external forces
Solution Approach 1:
The stopper is locally added to the mounting part at a specific position to limit the rotating shaft. This local modification provides position stability where needed while keeping the rest of the assembly process simple and easy to operate.
Solution Approach 2:
The stopper is pre-installed to preliminarily define the position limit for the rotating shaft. This preliminary positioning action ensures stable assembly without requiring complex operations during the assembly process itself.
Data Source
AI summary
A scissors-type connecting member includes a first frame and a second frame. The first frame includes a rotating shaft. The second frame includes a pivot hole, an entrance and a stopper. After the rotating shaft is introduced into the pivot hole through the entrance, the first frame is pivotally coupled to the second frame. The stopper is located near the entrance or arranged between the entrance and the pivot hole. A position of the rotating shaft is limited between the stopper and the pivotal hole by the stopper. Consequently, the scissors-type connecting member is assembled easily, and the stability of connecting a first frame and a second frame of the scissors-type connecting member is enhanced. Moreover, the present invention also provides a key structure with the scissors-type connecting member.