Load Cell Housing Layout With Side Leveling Legs for Thin Scales
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Solution Overview
Problem
Existing weight measurement devices with adjustment legs either have a large total thickness due to load cells being directly below or remote from the legs, leading to increased rigidity or thickness, respectively.
Innovation Solution
A weight measurement device and load cell unit design featuring a recessed and projected shape part with an adjustment leg mechanism that allows for height position adjustment, where the load cell is partially contained in a recessed part and the adjustment leg is positioned opposed to a projected part, reducing the overall thickness while maintaining performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If adjustment legs are provided directly below load cells, then the device can obtain predetermined performance, but the total thickness of the device becomes large
Solution Approach 1:
The patent repositions the adjustment legs from directly below the load cells to the side parts of the housing base, utilizing lateral space instead of vertical space. This dimensional change allows the load cells to be placed directly on the housing base without requiring additional vertical clearance for adjustment legs, thereby reducing the total thickness while maintaining the leveling function.
2Ease of operation
If adjustment legs are provided at positions remote from load cells, then the device can function, but a rigid structure is required which causes the total thickness to be large
Solution Approach 1:
The patent provides adjustment legs only at specific side positions of the housing base rather than uniformly distributing them or placing them centrally. This localized placement at side parts allows the leveling function to be achieved with a more compact structure, eliminating the need for a rigid thick structure that would be required if adjustment legs were positioned remotely from the load cells.
Data Source
Figure 1A~1D
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AI summary
A weight measurement device comprises: a housing cover to receive weight of a measurement target; a plurality of load cells to support the housing cover and detect the weight; a housing base comprising, for each of the plurality of load cells, a recessed and projected shape part comprising: a recessed part open upward to at least partially contain each load cell and fix the load cell; and a projected part projected downward corresponding to the recessed part; and an adjustment leg which at least partially contains the recessed and projected shape part, and comprises an adjustment mechanism part for height position adjustment at a position opposed to a side part of the recessed and projected shape part.