Modular Hand Tool Assembly with Replaceable Seat
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Solution Overview
Problem
Conventional hand tool assemblies lack expandability and versatility, as they are limited to a single function and cannot easily accommodate different parts for various tasks.
Innovation Solution
A hand tool assembly design featuring a body with a ratchet portion and a room, where a driving unit with a rotary member and pawl system allows for operational direction control, and a seat with an engaging portion that can be swapped to provide multiple functions, enabling the tool to be adapted for different tasks by changing the seat structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional hand tool assembly with a fixed head structure is used, then the tool has a simple and reliable structure, but the tool lacks versatility and cannot accommodate different functions
Solution Approach 1:
The patent applies universality by designing a modular seat system that can be replaced to provide different functions. The seat includes an insertion portion that engages with the body and an engaging portion that can be configured differently to perform various tasks, allowing the same driving unit to serve multiple purposes through seat interchangeability.
Solution Approach 2:
The patent applies segmentation by dividing the hand tool assembly into distinct modular components: a body, a driving unit, and a seat. This segmentation allows the seat to be independently replaced without affecting the driving unit or body, enabling versatility while maintaining structural simplicity of each individual component.
2Adaptability or versatility
If the driving unit is modified to accommodate different seats, then the tool gains expandability, but the driving unit becomes more complex
Solution Approach 1:
The driving unit is designed with universal engagement features that can accommodate different seat types. The connection between the driving unit and seat uses standardized interfaces (insertion portion and engaging portion) that allow multiple seat configurations without modifying the driving unit's core structure, thus maintaining simplicity while achieving expandability.
Solution Approach 2:
The patent applies local quality by concentrating the variability in the seat component rather than the driving unit. The seat's engaging portion is designed with specific local features for different functions, while the driving unit maintains a consistent, simple structure. This localizes the complexity to the replaceable seat rather than the entire driving unit.
3Ease of operation
If a modular seat system is implemented, then the tool allows easy replacement of parts for different functions, but the connection mechanism between body and seat becomes more complex
Solution Approach 1:
The connection mechanism is segmented into two simple, standardized interfaces: an insertion portion on the seat that fits into the body, and an engaging portion on the seat that provides the functional connection. This segmentation creates simple, modular connection points that are easy to engage and disengage, facilitating easy replacement without requiring complex connection mechanisms.
Data Source
AI summary
A hand tool assembly includes a body having a ratchet portion, a room and a window. A driving unit is rotatably received in the ratchet portion and the room of the body. The driving unit includes a driving head, a pawl, a spring and a rotary member. The rotary member is rotated via the window to control the operational directions of the driving unit. A seat is connected to the body, and the driving unit is connected between the body and the seat. The seat includes an insertion portion formed on one end thereof, and which is engaged with the room. The seat has an engaging portion formed on the other end thereof. The seat is replaceable to make the hand tool assembly have more functions.