Tip Tool Clamp Mechanism for Quick Attachment on Powered Machines
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Solution Overview
Problem
Existing powered working machines require operators to rotate screws or bolts for attaching and detaching tip tools, making the process complicated and time-consuming.
Innovation Solution
A powered working machine design that allows tip tools to be attached or detached from the tool supporting unit without rotating the tool fixing member, utilizing a mechanism with clamps and a guide member that can be operated to lock and unlock the tool fixing member, enabling easy attachment and detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a screw or bolt is used to fix the tip tool to the tool supporting unit, then the tool can be securely fixed, but the attachment and detachment process becomes complicated and time-consuming
Solution Approach 1:
The fixing mechanism is segmented into a tool fixing member with a clamp portion and a tool supporting unit with a clamp groove, allowing independent movement and engagement of these components. This segmentation enables the tool to be securely fixed when engaged while allowing easy release by moving the clamp portion, eliminating the need for rotational screw operations.
Solution Approach 2:
The tool fixing member is designed to be movable along the tool supporting unit, transitioning between a fixed state (when the clamp portion engages with the clamp groove) and a movable state (when released). This dynamic design allows the system to provide secure fixation during operation while enabling quick attachment and detachment by simply moving the fixing member linearly rather than rotating it.
2Strength
If a screw-based fixing mechanism is used, then the tool can be firmly attached, but the number of operational steps increases
Solution Approach 1:
The invention extracts the rotational motion requirement from the fixing mechanism, replacing it with a simple linear movement of the clamp portion along the clamp groove. This extraction of the rotational step reduces the number of operational steps required for attachment and detachment while maintaining firm attachment strength through the clamp-groove engagement.
Solution Approach 2:
The clamp portion and clamp groove are designed to automatically engage and disengage through linear movement of the tool fixing member. When the fixing member moves to the engaged position, the clamp portion naturally fits into the clamp groove, providing self-locking without requiring additional fastening operations, thus reducing attachment and detachment time while maintaining strong attachment.
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
A powered working machine facilitating work of fixing a tip tool to a tool supporting member is provided. A powered working machine 10 in which a tip tool 52 is driven by power of an electric-powered motor 11 includes: an output shaft 30 to which the tip tool 52 is attached; a tool fixing member 55 having a fixed state in which the tip tool 52 is fixed to the output shaft 30 and a released state in which the tip tool 52 is not fixed to the output shaft 30; a second shaft 46 to/from which the tool fixing member 55 is attached/detached and which switches the tool fixing member 55 between the fixed state and the released state; a clamp 61 having a locked state in which a state of attachment of the tool fixing member 55 to the second shaft 46 is maintained and an unlocked state in which the tool fixing member 55 can be detached from the second shaft 46; and a guide member 63 having a first rotation position at which the clamp 61 is in the locked state and a second rotation position at which the clamp 61 is in the unlocked state.