Locking Push-Button Switch Housing with Jig Fulcrum Projection
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Solution Overview
Problem
Existing push-button switches require significant finger strength to rotate the lock lever when using a tool like a screwdriver, making it difficult to operate easily.
Innovation Solution
A push-button switch design featuring a lock lever unit with a locking portion that secures a jig, allowing the lever body to be easily rotated using the jig, with a fulcrum projection serving as a rotation fulcrum, reducing the required force for operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a tool such as a screwdriver is inserted into the operation hole to rotate the lock lever, then the lock lever can be rotated, but significant finger strength is required and it is difficult to operate easily
Solution Approach 1:
A jig is introduced as an intermediary tool between the operator and the lock lever. The jig includes a locking portion that engages with the lock lever and a long handle that extends outward, allowing the operator to apply rotational force at a greater distance from the fulcrum point, thereby reducing the effort required to rotate the lock lever.
Solution Approach 2:
The solution extends the operation into another dimension by adding a long handle to the jig that protrudes from the operation hole. This increases the lever arm length in the rotational dimension, providing mechanical advantage and reducing the force needed at the handle end compared to directly rotating the lock lever through the small operation hole.
2Adaptability or versatility
If the lock lever is designed to be rotated by finger, then the structure is simple, but when a tool is used the lock lever may not be easily rotated
Solution Approach 1:
The lock lever is designed with dual functionality: it can be operated directly by finger insertion through the operation hole, or it can engage with the specialized jig tool. The locking portion on the lock lever is shaped to receive and engage with the corresponding feature on the jig, allowing both direct and tool-assisted operation modes without requiring separate mechanisms.
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
Enables easy rotation of the lock lever unit with a smaller force by leveraging the jig, improving operational efficiency and reducing the need for excessive finger strength.
Implementation Method 1
the housing has a fulcrum projection that is provided so as to protrude from the fulcrum forming surface, contacts an intermediate portion of the jig having the one end locked to the locking portion when the lever body is moved from the first position to the second position using the jig, and serves as a rotation fulcrum of the jig
Data Source
AI summary
A push button switch may include a housing, an operation unit, and, a lock lever unit. A lever body of the lock lever unit may have a locking portion capable of locking one end of a long jig in an extending direction. The housing may have a fulcrum projection that contacts an intermediate portion of the jig having the one end locked to a locking portion when the lever body is moved using the jig, and serves as a rotation fulcrum of the jig.