Work Stand Bracket Lever Mechanism for Power Tool Interference
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Solution Overview
Problem
Existing work stand brackets require complex and cumbersome procedures for mounting and demounting, and their design can interfere with power tool operations due to protruding lever parts, making positional adjustments and removals inefficient and risky.
Innovation Solution
The design incorporates a pedestal with two engaging parts, including a first and second lever that are pivotably coupled and offset, allowing for simultaneous or sequential manipulation to engage and disengage from engagement parts on the support frame, enabling smooth mounting, demounting, and positional adjustments while preventing interference with power tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lever parts are provided to engage and disengage the bracket from the support frame, then the bracket can be securely locked at arbitrary positions, but the lever parts protrude upward and interfere with power tool operations
Solution Approach 1:
The harmful protruding lever parts are extracted and repositioned. The manipulation parts are moved to the lower surface of the bracket base, separating the manipulation function from the upper working area, thus eliminating interference with power tool operations while maintaining locking reliability
Solution Approach 2:
The manipulation parts are relocated from the vertical upper dimension to the lower dimension of the bracket base. This dimensional change allows the lever parts to engage from below rather than protruding upward, resolving the conflict between locking function and operational clearance
2Reliability
If both lever parts are manipulated simultaneously to mount or demount the bracket, then secure locking is achieved, but the mounting and demounting procedure becomes complex and cumbersome
Solution Approach 1:
The system transitions from a static dual-lever requirement to a dynamic sequential operation. The first lever can be manipulated to engage or disengage one engagement part, and the second lever independently controls the other engagement part, allowing flexible sequential manipulation rather than rigid simultaneous action
Solution Approach 2:
The single dual-lever system is segmented into two independent lever mechanisms. Each lever independently controls one engagement part, allowing users to manipulate levers separately in sequence rather than requiring coordinated simultaneous manipulation of both levers
3Ease of operation
If the lever parts are positioned to facilitate easy manipulation, then operational ease is improved, but the lever parts may interfere with the work being performed by the mounted power tool
Solution Approach 1:
The manipulation function is extracted from the upper region where it would interfere with power tool operations. The lever parts are repositioned to the lower surface of the bracket base, maintaining ease of manual manipulation while removing them from the harmful interference zone
Solution Approach 2:
The manipulation function is replicated at a different location (lower surface) rather than positioned in the interfering upper region. This creates a functional copy of the engagement mechanism that achieves the same locking purpose without the harmful spatial interference
Data Source
AI summary
A bracket (20) includes: a pedestal (21, 22) that is mountable on a support frame (2) of a work stand (1) for supporting a saw (60); and first and second engaging parts (38A, 38B) arranged on the pedestal to sandwich the support frame in a horizontal direction and engage with first and second engagement parts (8A, 8B) on opposite sides of the support frame. The second engaging part includes first and second levers (41, 42). The pedestal is movable along the longitudinal direction of the support frame by manipulating only the first lever to disengage it from the second engagement part (8B) and is removable from the support frame by simultaneously manipulating both the first and second levers in the same direction to disengage them from the second engagement part. The first and second levers both move in the same opposite direction to engage the second engagement part.