Transparent Cover Decorative Patterns for Electric Power Tool Heat Management
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Solution Overview
Problem
Existing electric power tools have a poor appearance and operability due to limited decorative options, which affect their decorativeness and user comfort, especially when handling tools with heat-generating mechanisms.
Innovation Solution
An electric power tool design featuring a metal front housing with a cylindrical transparent synthetic resin cover that incorporates decorative patterns on its inner surface, comprising bumps and dips, which enhance appearance and reduce heat transmission, improving grip and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transparent cover is used to protect the front housing, then the protective function is improved, but the appearance and decorativeness are poor
Solution Approach 1:
The patent applies decorative patterns (colored or translucent regions) on the transparent cover to change its visual appearance. This allows the cover to maintain its transparency and protective function while adding aesthetic value through visual variations in color and pattern design.
Solution Approach 2:
The patent uses composite structure by combining transparent material with decorative pattern layers. The transparent cover integrates with decorative patterns to create a multi-layered composite structure that provides both protection and aesthetic appeal simultaneously.
2Shape
If the cover is made entirely transparent, then the appearance is improved, but heat transmission causes discomfort and reduces operability
Solution Approach 1:
The patent applies local quality by creating specific heat-insulating regions at heat-prone areas (such as around the striking mechanism) while maintaining transparency in other areas. This localized approach allows users to grip the tool comfortably at insulated regions without sacrificing overall aesthetic appearance.
Solution Approach 2:
The decorative patterns serve as intermediary elements that provide thermal insulation between the user's hand and the heat-generating metal housing. These patterns act as a mediator that blocks heat transmission while maintaining the visual appeal of the transparent cover.
3Shape
If decorative patterns are added to the cover, then the decorativeness is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent employs parameter changes by varying the optical properties (transparency, color, translucency) of different regions on the cover during the molding process. This allows decorative patterns to be integrated into the cover structure through parameter variations rather than adding separate components, thereby reducing manufacturing complexity.
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 decorative patterns enhance the tool's appearance, provide a sense of depth, and reduce heat transmission, leading to improved operability and user comfort by allowing safer handling.
Implementation Method 1
the decorative pattern indicates parts of the cover with less heat transmission
Data Source
Figure 1
Figure 2A~2D
Figure 3A~3D
AI summary
In an electric power tool in which a metal front housing (20) that accommodates a driving mechanism is assembled to the front of a main housing (10) that accommodates a motor, an output shaft is protruded from the distal end of the front housing (20), and the outer periphery of the front housing (20) is protected by a cylindrical transparent cover (30) made of synthetic resin, a decorative pattern (61) is formed on the inner surface of the transparent cover (30). The decorative pattern is formed of bumps and dips formed on the inner surface (R1 to R4).