Sensor Housing Ground Fixing With Quarter-Turn Locking Pins
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Solution Overview
Problem
Existing ground-fixing systems for tyre characteristic sensor housings are cumbersome, costly, and difficult to reposition, requiring significant infrastructure and heavy equipment, and are not easily adaptable to different locations.
Innovation Solution
A ground-fixing system featuring a fixing plate with recesses and rotatable fastening pins that allow for simple and rapid installation and repositioning, using profiles that engage and lock with a quarter-turn rotation, and incorporating immobilizing means to prevent unintentional unlocking, enabling quick and easy adjustment without disturbing operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If significant infrastructure is used to fix the housing to the ground, then the housing can withstand high stresses from vehicles, but the installation becomes time-consuming and costly
Solution Approach 1:
The fixation system is divided into separate modular components: a fixing plate with multiple recesses and individual fastening pins. This segmentation allows for rapid assembly by simply inserting and rotating pins rather than pouring concrete or installing heavy infrastructure, thus reducing installation time while maintaining fixation strength.
Solution Approach 2:
The system uses simple, inexpensive fastening pins made from basic materials rather than permanent infrastructure. These pins can be easily replaced or repositioned if needed, providing a cost-effective solution that trades permanent heavy infrastructure for replaceable lightweight fasteners.
2Stability of the object's composition
If significant infrastructure is used to fix the housing, then the housing remains stable under stress, but repositioning requires heavy equipment and major work
Solution Approach 1:
The fixation system uses separate modular components (fixing plate and individual pins) that can be independently manipulated. This allows workers to quickly remove pins and reposition the housing without needing heavy equipment, while the multiple pin locations ensure stability remains intact during and after repositioning.
Solution Approach 2:
The fastening pins incorporate a rotation mechanism that transitions from an insertion position to a locking position, providing dynamic fixation. This allows the housing to be easily inserted and removed when repositioning is needed, while automatically locking securely when in place, thus balancing repositioning ease with operational stability.
3Productivity
If a simple fixing mechanism is used, then installation is rapid and easy, but the mechanism may not withstand severe stresses from vehicle traffic
Solution Approach 1:
The system combines multiple fastening pins distributed across the fixing plate to work together as a unified fixation system. Individually simple pins gain collective strength through their distributed arrangement, with multiple pins sharing the load from vehicle traffic, thus maintaining fixation strength while keeping each component simple for rapid installation.
Solution Approach 2:
The fastening pins feature a rotation mechanism that transitions from an insertion position to a locking position, transforming a simple insertion action into a secure locked fixation. This dynamic transformation allows rapid installation through simple insertion followed by a locking rotation, while the locked position provides sufficient strength to withstand severe vehicle stresses.
4Strength
If multiple fastening points are distributed over the fixing plate, then the housing can be securely fixed, but the complexity of the fixing system increases
Solution Approach 1:
The fixing plate with its distributed recesses and the fastening pins serve multiple functions: they provide secure fixation at multiple points, enables easy repositioning by removing pins, and allow for housing orientation adjustment. This multi-functionality reduces the need for separate systems for each function, thus managing complexity while maintaining strong fixation.
Solution Approach 2:
The fixing system uses repeated identical elements (multiple recesses and matching pins) distributed across the plate. This repetition of standardized components simplifies manufacturing and assembly compared to custom-designed complex joiners, as each pin and recess is a simple standardized element that can be mass-produced and easily assembled.
Data Source
AI summary
A ground-fixing system for a tire characteristics sensor housing (10) comprises: a fixing plate (1) comprising a plurality of recesses (2) of a given profile distributed over the surface of the fixing plate; and a plurality of fixing pins (3) of substantially corresponding profile, similarly distributed on a fixing face of said sensor housing (10), the shapes and dimensions of the recesses (2) and of the pins (3) for fixing being provided so as to allow, on the one hand, in a position of insertion of the pins, engagement of the latter in said recesses and, on the other hand, in a locking position of the pins, fixing of the sensor housing (10) on the fixing plate (1).