Level With Removable End Cap and Wall Grip
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Solution Overview
Problem
Traditional levels with liquid vials and bubbles face challenges in securely attaching to surfaces, leading to slippage and instability during orientation measurements, particularly in construction and building applications.
Innovation Solution
A level design featuring a removable end cap with a clip, outer member, and locking mechanism, including wall grips that protrude beyond the level frame to engage with workpieces, providing secure attachment and preventing slippage, while the locking member ensures the end cap remains securely in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional levels use liquid vials with bubbles for orientation measurement, then orientation measurement function is provided, but the level cannot securely attach to surfaces, causing slippage and instability
Solution Approach 1:
The level is divided into separate functional components: a frame containing the orientation measurement vial, and a removable end cap with integrated wall grip features. This segmentation allows the attachment function to be independently optimized through the clip and grip structures while preserving the orientation measurement capability in the main frame.
Solution Approach 2:
A clip structure with wall grips acts as an intermediary between the level frame and the surface being measured. The clip receives the frame and provides protruding grip elements that contact the workpiece surface, mediating the attachment function and preventing direct contact between the frame and surface that would cause slippage.
2Ease of operation
If the level frame directly contacts the workpiece surface, then simple attachment is achieved, but slippage occurs and measurement stability is compromised
Solution Approach 1:
The wall grip protrusions extend beyond the frame's lateral surface, adding a dimensional element that contacts the workpiece surface before and during measurement. This creates a stable triangular contact geometry where the grip provides forward contact while the frame provides rear support, preventing slippage in either direction.
Solution Approach 2:
The end cap assembly combines multiple materials with different properties: a rigid frame for structural support and vial containment, a flexible or resilient clip material for secure engagement, and grip surface material with optimized friction characteristics. This composite construction provides both ease of attachment and measurement stability.
3Reliability
If a removable end cap with clip is added to secure the level to surfaces, then attachment reliability is improved, but device complexity increases
Solution Approach 1:
Multiple functions are merged into the end cap assembly: the clip provides both structural attachment to the frame and surface engagement through integrated wall grips. The locking member combines retention and positioning functions. This consolidation reduces the number of separate components while maintaining attachment reliability.
Solution Approach 2:
The clip structure is designed to be self-retaining through its geometry and interaction with the frame aperture, eliminating the need for additional fasteners or complex locking mechanisms. The wall grips automatically engage with the workpiece surface when the level is positioned, providing self-adjusting attachment without requiring operator intervention.
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 level securely attaches to surfaces, preventing slippage and ensuring accurate orientation measurements by using the wall grips and locking mechanism, enhancing stability and ease of use.
Implementation Method 1
The locking member is disposed within the outer member, and biases the moveable tab to engage the aperture of the first wall of the clip
Implementation Method 2
The wall grip is sized such that its outermost lateral surface extends beyond the outermost lateral surface of the level frame or body such that the wall grip defines an outermost surface which will contact a workpiece or wall when the level is placed adjacent the workpiece or wall
Data Source
AI summary
A level with a clip and removable end cap is provided. The end cap includes an outer member and locking member received within a clip that is affixed inside an end of the level. The locking member is inserted into the outer member pushing a moveable portion of the outer member into an engagement, such as a shearing engagement, that holds the end cap assembly in place relative to the level body. The clip includes a projection that interfaces with an aperture in the level frame.