Hand-Held Band Saw Support Assembly With Buffered Height Adjustment
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Solution Overview
Problem
Hand-held band saws on the market require external tools for adjusting the height of the supporting member, which is inconvenient and can lead to stress collapse or damage during use, affecting working efficiency.
Innovation Solution
A hand-held band saw design featuring a supporting device with a fixing member, slider, supporting member, connection assembly, and buffer member, allowing the supporting member to move along a sliding direction and adjust height without external tools, and providing a buffer force to prevent damage from external forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the supporting member uses a rigid connection structure, then the supporting member can maintain stable position, but the supporting member cannot adapt to external impacts and may cause stress collapse or damage
Solution Approach 1:
The patent applies beforehand cushioning by introducing a buffer member (spring or elastic element) between the slider and supporting member. This buffer member is pre-configured to absorb impact forces before they can cause stress collapse or damage to the rigid connection structures, thus protecting the supporting member while maintaining its stability during normal operation.
2Adaptability or versatility
If the supporting member allows free movement for height adjustment, then the supporting member can adapt to different workpiece heights, but the supporting member may disengage from the fixing member without external force
Solution Approach 1:
The patent applies preliminary anti-action by incorporating a control assembly (such as a locking mechanism or retaining structure) that prevents the slider from disengaging from the fixing member unintentionally. This control assembly counteracts the tendency of the slider to move freely, ensuring that height adjustment only occurs when deliberately actuated by the user while preventing accidental disengagement during operation.
3Device complexity
If the supporting member uses a simple rigid structure, then the device complexity is low, but the supporting member lacks the ability to absorb impact and protect itself from damage
Solution Approach 1:
The patent incorporates a buffer member (spring or elastic element) between the slider and supporting member that is pre-configured to absorb impact forces. This addition increases device complexity slightly but provides essential damage resistance by cushioning against external impacts before they can cause stress collapse or structural failure of the supporting member.
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
Enhances user convenience by allowing height adjustment without external tools and reduces the risk of damage by providing a buffer force to absorb external impacts, thereby improving operational efficiency and extending the tool's lifespan.
Implementation Method 1
The buffer member is mounted between the slider and the supporting member... providing a buffer force to prevent damage from external forces
Data Source
AI summary
A hand-held band saw includes a band saw body and an supporting device. The supporting device includes a fixing member, a slider, a supporting member, and a connection assembly. The fixing member is fixedly connected to the band saw body, the slider is slidably connected to the fixing member, the supporting member supports a workpiece and is connected to the slider, and the connection assembly connectes the slider and the supporting member. When the slider moves, the connection assembly is capable of enabling the supporting member to move along with the slider. The connection assembly comprises a buffer member mounted between the slider and the supporting member.