Weighing System Lever Bearing Relocation for Detection Resolution
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Solution Overview
Problem
Current weighing systems face limitations in high-precision applications due to the resolution of lever position detection, which affects the accuracy of weight measurement, especially in systems with cantilever arms where ergonomic considerations compromise precision.
Innovation Solution
The lever bearing is relocated in front of the load receiver under the cantilever arm, allowing the long lever arm to be extended, enhancing the deflection and detection resolution without altering the short lever arm or coupling band's position, thereby improving position detection precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the lever bearing is positioned behind the load receiver, then the system maintains a compact structure, but the long lever arm length is limited and position detection resolution is insufficient
Solution Approach 1:
The lever bearing is relocated from a horizontal position behind the load receiver to a vertical position beneath it, utilizing the vertical dimension under the cantilever arm. This spatial reconfiguration allows the long lever arm to extend forward without increasing horizontal footprint, thereby improving position detection resolution while maintaining structural compactness.
2Measurement precision
If the long lever arm is extended to improve position detection resolution, then measurement precision improves, but the system requires more space and increases structural complexity
Solution Approach 1:
The lever bearing is repositioned into the vertical space beneath the load receiver, allowing the long lever arm to extend in the horizontal direction without proportionally increasing the vertical height or overall system footprint. This enables extended lever arm length for improved measurement precision while controlling structural dimensions.
3Measurement precision
If the lever bearing is relocated under the cantilever arm, then the long lever arm can be extended for better detection resolution, but the arrangement of other components must be adjusted
Solution Approach 1:
By moving the lever bearing to the vertical space beneath the load receiver, the patent reconfigures the spatial relationships of components. The coupling band and short lever arm maintain their functional connections while adapting to the new bearing position, distributing the rearrangement complexity across multiple components rather than creating a single complex assembly.
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
This configuration enhances the resolution of lever position detection, improving the accuracy of weight measurements in both high-rise and low-rise systems by increasing the deflection of the sighting device, which is critical for precise weighing applications.
Implementation Method 1
a horizontally extending transmission lever with a front, short lever arm and a rear, long lever arm, wherein the transmission lever is articulated by means of said lever bearing
Implementation Method 2
weight forces acting on the load receiver
Implementation Method 3
a load receiver articulated to the base via said parallel link arrangement, wherein the parallel link arrangement is articulated to the base rear wall in a rear articulation plane by means of said rear joints and to the load receiver in a front articulation plane by means of said front joints
Implementation Method 4
whereby weight forces acting on the load receiver, deflected via said coupling band, can be introduced as tensile forces into the short lever arm
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a weighing system (100), comprising - a base with a base floor (104) which protrudes horizontally from a vertically extending base rear wall (102), - a load receiver (108) which is hinged to the base via a horizontal parallel link assembly (106), said parallel link assembly (106) being hinged to the base rear wall (102) on a rear hinge plane by means of rear joints (112), which are designed in the form of horizontally extending thinned material locations, and to the load receiver (108) on a front hinge plane by means of front joints (114), which are likewise designed in the form of horizontally extending thinned material locations, and - a horizontally extending conversion lever (124) with a short front lever arm (122) and a long rear lever arm (128). The conversion lever (124) is mounted on the base by means of a lever bearing (126), which is designed in the form of a vertically aligned thinned material location and which is positioned on the conversion lever (124) between the lever arms (122, 128) and on the base floor (104), wherein weight forces which are deflected via a vertically extending coupling strip (120) and are acting on the load receiver (108) can be introduced into the short lever arm (122) as tensile forces, and a cantilever arm (116) protrudes from the load receiver (108), said cantilever arm being rigidly connected to the load receiver (108) at one of the two ends of said cantilever arm and having a mechanical interface at the other of the two ends for fixing a weighing goods support (20). The invention is characterized in that the cantilever arm (116) protrudes towards the front from the load receiver (108), the rear end of the cantilever arm is the end at which the cantilever arm is rigidly connected to the load receiver (108), and the front end of the cantilever arm is the end at which the cantilever arm has the mechanical interface for fixing the weighing goods support (20). The lever bearing (126) is arranged in front of the load receiver (108) in the region of the cantilever arm (116).