Foldable Miter Saw Safety Assembly for Transport Lockout
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Solution Overview
Problem
Existing sawing machines are unsafe during transportation due to the risk of accidentally triggering the blade when the user forgets to remove the power supply plug or when using rechargeable batteries, and they occupy too much space when not in use.
Innovation Solution
A foldable miter saw with a safety device that includes a safety assembly with a pivot end and a free end, which automatically rotates to an anti-touch position relative to the safety switch during folding, preventing accidental activation of the blade.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the sawing machine is made foldable to reduce storage volume, then the storage space is reduced, but the risk of accidental blade activation during transportation increases
Solution Approach 1:
The patent applies preliminary anti-action by designing a safety member that automatically positions itself to block the safety switch before the blade can be accidentally activated. The safety member is pre-configured to interfere with the switch operation during the folding process, preventing the harmful action of accidental blade startup before it can occur.
Solution Approach 2:
The safety member acts as an intermediary element between the folding mechanism and the safety switch. It mediates the interaction by physically blocking the switch when the blade is in the folded position, thereby preventing direct contact between the user's hand and the switch during transportation.
2Volume of moving object
If the blade is positioned close to the worktable during folding, then the storage volume is reduced, but the accessibility of the safety switch increases causing accidental activation
Solution Approach 1:
The safety member is designed to automatically block the safety switch when the blade approaches the folded position near the worktable. This preliminary anti-action prevents the safety switch from being accidentally activated during the folding process, even though the switch remains accessible for intentional operation when needed.
3Ease of operation
If the user holds the handle during transportation, then the machine is easier to carry, but the risk of accidentally pressing the switch grip increases
Solution Approach 1:
The safety member serves as an intermediary barrier between the user's hand on the handle and the safety switch. It physically intercepts any unintended pressure on the switch, allowing the user to comfortably hold the handle during transportation without risking accidental blade activation.
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 safety device ensures the blade cannot be accidentally triggered during transportation by ensuring the safety switch is not operable, thus enhancing user safety and reducing storage volume.
Implementation Method 1
the free end of the safety member is rotatable downward under the action of gravity, so that the safety member rotates from a touchable position to an anti-touch position relative to the safety switch
Data Source
AI summary
A foldable miter saw with safety device includes a base unit having a working surface and an axial holder, and a cutting unit including a rotating member, a blade, a driving unit and a safety assembly that has a safety switch and a safety member. When the safety switch is not operated, the driving unit cannot drive the blade to rotate. During the period when the rotating member rotates to drive the blade from a working position to a folded position, a free end of the safety member can be rotated downward under the action of gravity, so that the safety member can rotate to an anti-touch position where the free end is relatively close to the safety switch so that the safety switch cannot be operated, and the driving unit cannot drive the blade to rotate, which can avoid accidentally touching the blade to rotate.