Hand Tool Intermediate Flange Axial Insertion Design
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Solution Overview
Problem
Existing hand-held power tools with intermediate flanges face challenges in simplified assembly and disassembly of transmission elements, particularly due to complex insertion methods of wobble fingers and lateral insertion requirements, which complicate the process and require additional space.
Innovation Solution
The introduction of a slot-shaped opening at the bearing point, allowing axial insertion of transmission elements, such as the drive piston and intermediate shaft, eliminates the need for lateral insertion and rotation, simplifying assembly and disassembly while enabling axial mounting, and incorporating a secure plain bearing to prevent twisting and axial displacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lateral insertion method is used for wobble finger, then transmission elements can be assembled, but assembly process becomes complex and requires additional space
Solution Approach 1:
The patent inverts the traditional lateral insertion approach by implementing axial insertion through a slot-shaped opening. Instead of inserting the wobble finger sideways through a recess, the assembly is inserted axially along the longitudinal axis of the base body, simplifying the operation and reducing spatial requirements.
Solution Approach 2:
The patent changes the insertion dimension from lateral (horizontal) to axial (vertical along the longitudinal axis). The slot-shaped opening extends in the longitudinal direction, allowing components to be inserted along the length of the base body rather than from the side, thereby simplifying the assembly process.
2Ease of operation
If wobble finger is inserted laterally through recess, then transmission elements can be mounted, but additional space is required during assembly
Solution Approach 1:
The patent inverts the traditional lateral insertion approach by implementing axial insertion through a slot-shaped opening. Instead of inserting the wobble finger sideways through a recess, the assembly is inserted axially along the longitudinal axis of the base body, simplifying the operation and reducing spatial requirements.
Solution Approach 2:
The patent changes the insertion dimension from lateral (horizontal) to axial (vertical along the longitudinal axis). The slot-shaped opening extends in the longitudinal direction, allowing components to be inserted along the length of the base body rather than from the side, thereby simplifying the assembly process.
3Adaptability or versatility
If intermediate flange is designed as separate component, then flexibility in configuration is achieved, but manufacturing effort increases
Solution Approach 1:
The intermediate flange is designed as a separate, modular component that can be independently manufactured and configured. This segmentation allows for flexible adaptation to different tool requirements while maintaining standardized manufacturing processes for each module, balancing flexibility with manufacturing efficiency.
Data Source
Figure 1
Figure 2~3
AI summary
The invention relates to a hand machine tool (10) comprising an intermediate flange (12), particularly for receiving transmission elements, said flange having at least one base body (14) having at least one bearing point (18). It is proposed that at least one opening (16) is provided at least in the area of the bearing point (18).