Spirit Level Adjustment via Elastic Deformation
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Solution Overview
Problem
Existing spirit level adjustment methods lack precision and temperature stability, as they often rely on adhesives or clamping which fail to maintain the adjustment position under temperature changes and do not allow for sensitive and symmetrical force application.
Innovation Solution
A spirit level with an opening in the spirit level body or holder for an adjustment means, such as an eccentric or conical screw, which allows for precise and elastic deformation to adjust the bubble level, ensuring temperature stability by using the same material for the adjustment means and body, and allowing for reversible movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adhesive or clamping methods are used to fix the spirit level in the body, then the spirit level can be secured in position, but the adjustment position is lost under temperature changes
Solution Approach 1:
The patent utilizes elastic deformation of the spirit level body as a parameter change mechanism. When the adjustment means is actuated, it causes controlled elastic deformation of the body, which in turn adjusts the orientation of the spirit level. This elastic deformation allows the system to adapt to temperature changes while maintaining the adjustment position, resolving the contradiction between reliability under temperature variations and manufacturing simplicity.
2Measurement precision
If the spirit level body is deformed to adjust the bubble level, then precise adjustment is achieved, but the deformation must be reversible and stable
Solution Approach 1:
The patent employs elastic deformation as a reversible parameter change that enables precise adjustment of the bubble level orientation. The elastic nature of the deformation ensures that the spirit level body returns to its original shape after adjustment, providing both precision and stability. This resolves the contradiction by using the same material for the adjustment means and body, ensuring matching thermal expansion coefficients and stable deformation characteristics.
3Ease of operation
If an opening is formed in the spirit level body for the adjustment means, then the adjustment means can be inserted, but the structural integrity of the body is compromised
Solution Approach 1:
The patent applies local quality by creating an opening only in the specific area where the adjustment means is required, rather than compromising the entire structure. The opening is strategically positioned to allow access for the adjustment means while preserving the structural integrity of the rest of the spirit level body. This localized approach resolves the contradiction between operational accessibility and structural strength.
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 solution provides extremely temperature-stable and precise adjustment of the bubble level, maintaining the adjustment position across temperature changes and enabling adjustment on both sides with resettable movement.
Implementation Method 1
the spirit level body is deformed... The deformation is usually elastic and is fixed by locking the adjustment means
Implementation Method 2
the adjustment means to be in the form of an eccentric... a rotation of the adjustment means can be converted into a lifting movement
Implementation Method 3
the spirit level body to have a contact surface in the area of the recess for receiving the dragonfly, through which the deformation caused by actuation of the adjustment means is transferred to the dragonfly
Data Source
Figure 1a~1f
Figure 2
Figure 3
AI summary
Spirit level (1) with a spirit level body (2) which has at least one recess (4) into which at least one vial (3) can be inserted, wherein the spirit level body (2) has an opening (5) in the area of the recess (4) and/or a vial holder (11) receiving the vial (3) has an opening (5) into which opening (5) an adjustment means (6) can be inserted, wherein by actuation, in particular by rotation of the adjustment means (6) inserted into the opening (5) the spirit level body (2) or the vial holder (11) is deformed and thereby a vial (3) inserted into the recess (4) can be rotated.