Oscillating Power Tool Housing for Vibration Isolation
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Solution Overview
Problem
Existing oscillating power tools generate significant vibration that is transmitted to the grip part, and the support structure of elastic members in these tools can be improved for easier assembly and effective vibration isolation.
Innovation Solution
The power tool features a dual-housing design with interposing members that facilitate the assembly of elastic members by compressing them in a left-right direction, reducing vibration transmission through a combination of interposing members and elastic members between the inner and outer housings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If elastic members are supported between the inner housing and an interposing member connected to the outer housing, then vibration isolation is achieved, but assembly becomes complex
Solution Approach 1:
The interposing member integrates multiple functions: it connects the outer housing to the elastic members, provides a mounting surface for the elastic members, and structurally links the upper and lower housing members. This merging of functions reduces the number of separate components needed and simplifies the overall support structure while maintaining vibration isolation effectiveness.
Solution Approach 2:
The interposing member acts as an intermediary component between the outer housing and the elastic members. It facilitates the connection by providing a stable mounting surface and structural bridge, making the assembly process easier while ensuring effective vibration isolation through the elastic members.
2Ease of manufacture
If the outer housing is formed by connecting two components in the up-down direction, then assembly flexibility is improved, but the support structure for elastic members becomes more complex
Solution Approach 1:
The outer housing is segmented into upper and lower members that can be assembled separately and then connected. This segmentation allows for easier manufacturing and assembly of the housing components individually, while the interposing member provides a simplified interface for mounting the elastic members between these segmented housing parts.
3Object-affected harmful factors
If elastic members are compressed between the inner housing and interposing member, then vibration isolation effectiveness is improved, but assembly difficulty increases
Solution Approach 1:
The interposing member is pre-configured with the appropriate structure and positioning features that enable the elastic members to be compressed to the correct degree during assembly. This preliminary preparation of the interposing member ensures that the elastic members achieve the desired compression state for effective vibration isolation without requiring complex assembly operations.
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
This design effectively reduces vibration transmission and simplifies the assembly process by using interposing members to compress elastic members between the inner and outer housings, enhancing the vibration-isolating structure.
Implementation Method 1
a pair of elastic members. One of the pair of elastic members is held between a left portion of the inner housing and one of the interposing members, and the other of the elastic members is held between a right portion of the inner housing and the other of the interposing members, such that the elastic members are compressed in a left-right direction
Data Source
AI summary
A power tool includes a motor, a spindle, an inner housing, an outer housing formed by an upper member and a lower member, a pair of interposing members and a pair of elastic members. The interposing members are arranged leftward and rightward of the inner housing, respectively, and fixedly connected to a first member, which is one of the upper member and the lower member, and at least partially in contact with an inner surface of the first member. The elastic members are held between a left portion of the inner housing and one of the interposing members and between a right portion of the inner housing and the other of the interposing members, respectively. A first end portion of each of the interposing members has at least one first surface extending to be closer to the inner housing toward a tip end of the first end portion.