Head-Up Display Semi-Reflective Plate Support Mechanism
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Solution Overview
Problem
Existing semi-reflecting plate support devices for head-up displays in motor vehicles are bulky, expensive, and prone to mechanical failures, with complex kinematics that compromise precision and ease of maintenance, repair, and protection against external aggressions.
Innovation Solution
A support device featuring a fixed display base with a rotationally connected adjustment cradle and locking mechanisms that allow the semi-reflecting blade to be securely positioned and easily removed for maintenance, using a blade support to mitigate mechanical stress and facilitate precise adjustment and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a retractable semi-reflecting blade with complex kinematics is used, then protection against external aggressions is improved, but device complexity and cost increase
Solution Approach 1:
The support device is divided into distinct functional components: a fixed display base, a removable blade, and a simplified cradle mechanism. This segmentation allows the blade to be easily removed for protection without requiring complex integrated kinematics, resolving the contradiction between protection capability and device complexity
Solution Approach 2:
The semi-reflecting blade is extracted as a separate removable component from the display system. This allows the blade to be taken out when not in use to protect it from external aggressions, while the remaining support structure remains simple and does not require complex retraction kinematics
2Object-affected harmful factors
If complex retraction kinematics are implemented, then the semi-reflecting blade can be retracted for protection, but manufacturing cost increases
Solution Approach 1:
By segmenting the system into a removable blade and a simple support cradle, the invention eliminates the need for expensive complex retraction mechanisms. Each component can be manufactured separately using standard processes, reducing overall manufacturing cost while maintaining protection capability
Solution Approach 2:
The blade is designed as a separate, easily replaceable component that can be removed and stored when not in use. This approach allows for simpler, cheaper support structures without complex kinematics, as the blade itself becomes the protective element when removed rather than requiring an expensive retraction system
3Object-affected harmful factors
If bulky specific parts are added for retraction, then the semi-reflecting blade can be retracted, but the space required increases
Solution Approach 1:
The system is segmented into a compact fixed display base and a removable blade. The blade can be easily detached and stored in minimal space when not in use, eliminating the need for bulky retraction mechanisms and reducing the overall space required for the head-up display system
4Object-affected harmful factors
If moving mechanical parts are added for retraction, then the semi-reflecting blade can be retracted, but reliability decreases
Solution Approach 1:
The blade is extracted as a separate removable component that can be easily taken out for protection without requiring any moving mechanical parts for retraction. This eliminates the reliability issues associated with complex kinematics while maintaining the ability to protect the blade from external aggressions
Solution Approach 2:
The blade serves its own protective function by being easily removable and storable. When removed from the simple cradle, the blade itself is protected from external aggressions without requiring any active retraction mechanism, thereby eliminating mechanical failure risks
5Object-affected harmful factors
If complex retraction kinematics are used, then the semi-reflecting blade can be retracted, but positioning precision deteriorates
Solution Approach 1:
The system is segmented into a fixed display base with a simple cradle and a removable blade. The blade can be precisely positioned when installed and easily removed when not in use, without requiring complex retraction kinematics that would compromise positioning precision. The simple cradle design maintains manufacturing precision while enabling protection
Data Source
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AI summary
The invention relates to a device for supporting a semi-reflective plate (12) for a head-up display of a motor vehicle, including: a display base (18), stationary relative to the vehicle, intended for receiving the plate (12); an adjustment cradle (20) rotatably connected according to a first axis of rotation to the base (18), and including first attachment means, the plate (12) being connected to second attachment means, and suitable for being moved between two positions, by rotation in the display base (18) according to a second axis of rotation (12) which coincides with the first axis: a removal position, in which the plate (12) can be detached from the base (18); and a stationary position in which the first and second attachment means secure the plate (12) relative to the cradle (20).