Woodworking Vice Foot Pedal Locking Mechanism
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Solution Overview
Problem
Ordinary woodworking vices require cumbersome and laborious manual manipulation to lock and unlock the workpiece, making them inconvenient to operate.
Innovation Solution
A woodworking vice design featuring a clamp assembly with a connection rod, locking member, rocker, and pedal system, where stepping on the pedal allows for easy locking and unlocking of the clamp assembly, utilizing a torsion spring and compression spring for automatic resetting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual manipulation is used to lock and unlock the clamp assembly, then the locking function is achieved, but the operation becomes cumbersome and laborious
Solution Approach 1:
The connection rod is designed to automatically reset to the unlocked position after locking, without requiring manual intervention. The torsion spring provides self-service by automatically returning the connection rod to its initial position, eliminating the need for manual unlocking operations.
Solution Approach 2:
The pedal mechanism transforms static manual manipulation into dynamic foot-activated operation. The rocker converts the pedal's linear motion into rotational motion of the connection rod, enabling easy foot-operated locking and unlocking while maintaining structural simplicity.
2Ease of operation
If a foot-activated pedal system is introduced for locking and unlocking, then ease of operation is improved, but the device complexity increases
Solution Approach 1:
The locking and unlocking functions are merged into a single foot-operated pedal mechanism. The same pedal that activates locking also triggers automatic resetting, combining multiple functions into one simple user interface element.
Solution Approach 2:
The rocker acts as an intermediary between the pedal and the connection rod. It translates the pedal's downward motion into rotational motion of the connection rod, mediating the force transmission while maintaining mechanical simplicity.
3Ease of operation
If the connection rod can reset automatically, then operation convenience is improved, but control over the locking state is reduced
Solution Approach 1:
The system provides automatic feedback through the torsion spring, which constantly urges the connection rod to return to its initial unlocked position. This feedback mechanism ensures reliable automatic resetting while maintaining predictable system behavior.
Solution Approach 2:
The torsion spring is pre-loaded to store elastic potential energy, preparing the connection rod for automatic resetting before the locking operation is even completed. This preliminary action ensures reliable return to the unlocked position without requiring additional energy input.
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 design significantly simplifies the operation by allowing foot-activated locking and unlocking, reducing manual effort and making the process extremely convenient and easy to use.
Implementation Method 1
The locking member is equipped with a torsion spring making the locking member have a tendency of rotating clockwise
Implementation Method 2
The transmission rod may be equipped with a compression spring making the transmission rod have a tendency of moving upwardly
Data Source
AI summary
A woodworking vice including a frame, the frame has a clamp assembly and a connection rod matching with the assembly, and a front end of the rod is hinged to the frame. A rear end of the rod is provided with an extending frame extending upwardly, a front end of a locking member is hinged to an upper end of the extending frame, and a middle portion of a rocker is hinged to the upper end of the extending frame and is located below the locking member. The locking member is provided with a cooperation hole, and the locking member is equipped with a torsion spring making the locking member have a tendency of rotating clockwise. A rear portion of the frame is provided with a locking rod extending downwardly, the rod passes through the cooperation hole, and a rear end of the rocker is matched with the locking member.