Head Support X-Direction Mechanism for Parallel Movement
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Solution Overview
Problem
Existing head supports that move in the X direction for comfort and safety purposes often tilt during movement, posing manufacturing and operational challenges.
Innovation Solution
A head support system with interlocking and frictional means on outer and inner walls, featuring pinions that engage and mesh to ensure parallel movement, along with stabilizing elements and a locking mechanism to maintain desired positions and prevent tilting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the head support box is made displaceable in the X direction for comfort and safety, then the adaptability and safety are improved, but the head support box tilts during movement which worsens the stability and operational reliability
Solution Approach 1:
The patent introduces pinions as intermediary elements that engage with racks on the holding bars to mediate the movement of the head support box. These pinions act as intermediaries between the displacement mechanism and the head support box, ensuring controlled movement while preventing tilting through proper mechanical engagement.
Solution Approach 2:
The patent adds stabilizing elements that extend in a dimension perpendicular to the primary movement direction (X-direction). These stabilizing elements provide support in the vertical dimension, preventing the head support box from tilting while allowing it to move horizontally for comfort and safety adjustments.
2Stability of the object's composition
If interlocking and frictional means are added to prevent tilting, then the stability is improved, but the device complexity increases
Solution Approach 1:
The patent divides the stabilization function into multiple discrete interlocking and frictional means distributed at different locations on the head support box. By segmenting the stabilization system into multiple independent but coordinated elements, the patent achieves reliable tilt prevention while maintaining manageable complexity through modular design.
Solution Approach 2:
The patent combines multiple functions into the interlocking and frictional means: they simultaneously provide movement guidance, tilt prevention, and position stabilization. By merging these functions into integrated mechanical elements rather than separate systems, the patent reduces overall device complexity while achieving the desired stability.
3Manufacturing precision
If multiple pinions are arranged between interlocking means to ensure parallel movement, then the manufacturing precision is improved, but the ease of manufacture decreases
Solution Approach 1:
The patent designs the pinions with universal characteristics - they are identical in dimensions and tooth configuration, allowing the same standardized component to be used at multiple locations. This universality enables precise parallel movement through consistent mechanical engagement while simplifying manufacture by reducing the variety of unique parts that must be produced and inventoried.
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 system ensures the head support box moves parallel to the holding bars without tilting, providing stability and secure positioning, especially in extreme conditions, while allowing for height and inclination adjustments.
Implementation Method 1
a first and a second pinion are arranged between in each case two interlocking and/or frictional means, said pinions respectively engaging with one interlocking and/or frictional means and meshing with each other
Implementation Method 2
the head support box has an interlocking and/or frictional means on opposite outer walls and has in each case two interlocking and/or frictional means on at least one inner wall
Data Source
AI summary
The invention relates to a head support comprising a head support case that can be moved in relation to at least one stay bar in the X direction. The invention also relates to a locking system.