Working Tool Handle Mounting Structure for Compact Power Tools
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Solution Overview
Problem
Conventional working machines that rotate tools using motor power face issues with increased size and cumbersome attachment mechanisms for holding tools.
Innovation Solution
A working machine design that incorporates a holding tool attached via an attaching hole in the case, utilizing a screw mechanism with a joint and handle, allowing for easy attachment and detachment without the need for a dedicated holder, thereby reducing size and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated holder is used to attach the holding tool to the main body, then the holding tool can be securely attached, but the size of the working machine increases
Solution Approach 1:
The holder is merged with the grip structure, where the grip itself serves as the holding mechanism. The groove formed by the outer surface and inner surface of the grip creates the holding space, eliminating the need for a separate dedicated holder component while maintaining secure attachment of the holding tool
Solution Approach 2:
The grip serves multiple functions: it provides the holding mechanism for the tool, serves as a structural component of the main body, and provides the groove that secures the tool. This multi-functional design eliminates dedicated holders and reduces overall machine size
2Reliability
If a dedicated holder with bolt and nut mechanism is used, then the holding tool can be firmly fixed, but the attachment process becomes troublesome
Solution Approach 1:
The fastening mechanism is merged into the grip structure itself. The groove formed by the outer and inner surfaces of the grip directly secures the holding tool without requiring separate bolts and nuts, making attachment simple while maintaining firm fixation
Solution Approach 2:
The complex bolt and nut mechanism is extracted and replaced with a simpler groove-based securing system. The holding tool is attached by simply placing it into the groove formed by the grip surfaces, eliminating the need for threaded fasteners
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 solution effectively suppresses the increase in size of the working machine, simplifies the attachment process, and enhances handleability and operability by allowing one-handed attachment and detachment of the holding tool, while reducing the number of parts and manufacturing costs.
Implementation Method 1
utilizing a screw mechanism with a joint and handle, allowing for easy attachment and detachment
Data Source
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AI summary
In order to provide a working machine capable of suppressing an increase in size, a working machine that rotates a working tool with motive power of a motor includes a transmission mechanism that transmits a rotational force of the motor to the working tool, a front case (25) in which the transmission mechanism is disposed, a holding tool (36) that is attached to the front case (25) so as to protrude from an outer surface of the case (25) and is gripped by a worker, and an attaching hole (41) which is provided in the front case (25) and to which the holding tool (36) is attached, and the attaching hole (41) penetrates the front case (25) in plan view intersecting with an axis (A1) that is a rotation center of the working tool.