Clamp Lever Tool Holder for Tip Tool Rotation and Quick Release
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Solution Overview
Problem
Existing working machines face low workability in attaching and detaching tip tools, and changing their orientation due to cumbersome operations involving engagement mechanisms and the need for complete tool shaft removal and reattachment.
Innovation Solution
A working machine with a motor-driven output shaft, an operation section, and a tool holding section that allows for a fixing state and a temporarily holding state, enabling secure attachment and detachment of tip tools at multiple rotation positions through a clamp mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanism with paired clamp members or multiple protrusions is used to hold the tip tool, then the tip tool can be securely held, but the workability for attaching and detaching the tip tool deteriorates due to cumbersome operations
Solution Approach 1:
The clamp member is designed to be movable between a clamping state (fixing state) and a release state through operation of the clamp lever. This dynamic mechanism allows the clamp member to transition between securely holding the tip tool and allowing easy detachment, resolving the contradiction between secure holding and ease of operation.
Solution Approach 2:
The tool holding section is divided into functional components: the attachment seat with convex sections for power transmission, the movable clamp member for securing, and the clamp lever for operation. This segmentation allows each component to perform its specific function efficiently, with the clamp lever providing simple operation while the convex sections ensure secure power transmission.
2Reliability
If the tool shaft must be completely pulled out to change orientation or reattach after lever operation, then the mechanism can be reset, but the workability deteriorates due to burdensome operations
Solution Approach 1:
The clamp lever is designed to enable the clamp member to move between clamping and release states without requiring complete removal of the tool shaft. The dynamic lever mechanism allows orientation changes and resets to be performed while the tool shaft remains partially engaged, eliminating burdensome operations.
3Adaptability or versatility
If multiple operations are required to attach the tip tool including operating the tool shaft, then the mechanism can be configured, but the workability deteriorates due to additional operations not for the clamp lever
Solution Approach 1:
The clamp lever is designed to perform multiple functions: it operates the clamp member for securing the tip tool, enables orientation changes, and facilitates attachment and detachment. This multi-functionality eliminates the need for separate operations for each function, improving workability while maintaining adaptability.
Data Source
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AI summary
Workability of a working machine is improved. An electric tool 400 includes a motor, a clamp shaft 412, a clamp lever 62, and a tool holding section 430. The tool holding section 430 includes clamps 438 and 448 and an attachment seat 452. Even if an operation force on the clamp lever 62 is released, the tool holding section 430 can be brought into either a fixing state or a temporarily holding state. The temporarily holding state includes a first state and at least one of a second state and a third state. In the first state, rotation of a tip tool 402 and detachment of the tip tool 402 are restricted. In the second state, while the detachment of the tip tool 402 is restricted, the tip tool 402 can be rotated from one rotation position to another rotation position. In the third state, at least one of the attachment of the tip tool 402 to the tool holding section 430 and the detachment of the tip tool 402 from the tool holding section 430 is enabled.