Pivoting Arm Holder for Vehicle Display Adjustment
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Solution Overview
Problem
Existing fastening devices for motor vehicle accessories, such as display screens, limit the range of movement and do not allow for optimal adjustment relative to the driver, and fail to maintain the adjusted position during vehicle vibrations.
Innovation Solution
A fastening device with a pivoting arm rotatable about a fixed axis and a holder rotatable about a second axis, both lockable in multiple latched positions, allowing the accessory to be adjusted into various optimal viewing positions and maintained securely during vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed fastening element arrangement is used, then the device structure is simple, but the range of movement of the accessory is significantly limited
Solution Approach 1:
The patent implements dynamic adjustability by allowing the accessory holder to be moved along the pivoting arm and locked at multiple positions. The pivoting arm itself can rotate about a fixed axis, creating a dynamic system that adapts to different viewing positions while maintaining structural simplicity through standardized locking mechanisms.
Solution Approach 2:
The fastening device is segmented into distinct functional components: a fixed mounting base, a rotatable pivoting arm, a movable holder, and locking mechanisms. This segmentation allows each component to perform its specific function independently, enabling wide adjustment range without proportionally increasing overall device complexity.
2Reliability
If manual adjustment is allowed, then the accessory can be positioned optimally, but the position cannot be maintained during vibrations
Solution Approach 1:
The locking mechanism is designed to automatically engage and secure the accessory holder at any position along the pivoting arm without requiring additional fastening actions. The system self-secures through the inherent mechanical interference between the holder and the arm, maintaining position reliably during vibrations while preserving ease of manual adjustment.
Solution Approach 2:
The pivoting arm acts as an intermediary element between the fixed mounting and the movable holder. It provides both the structural support needed for reliable positioning and the mechanical interface that enables easy manual adjustment, mediating between the conflicting requirements of stability and operability.
3Ease of operation
If the accessory is fixed in one position, then the structure is stable, but the driver cannot adjust to optimal viewing positions
Solution Approach 1:
The system transitions from a static fixed position to a dynamic multi-position configuration. The pivoting arm rotates about a fixed axis, and the holder moves along the arm, creating controlled dynamic movement that maintains structural stability through defined mechanical paths and automatic locking at discrete positions.
Solution Approach 2:
The holder is nested on the pivoting arm, allowing it to slide along the arm's length while the arm itself rotates about a fixed mounting point. This nested arrangement enables multi-degree-of-freedom adjustment (both rotation and linear movement) while maintaining a compact, stable structural hierarchy that prevents unwanted movements.
Data Source
AI summary
A fastening device for an adjustable display accessory in the region of the dashboard of a motor vehicle is provided. The accessory is movable into different positions relative to an operator. The fastening device pivots by a driver into an optimal position and when not in use is able to be pivoted back into a neutral position in which the driver is not disturbed, wherein at the same time the accessory may be lockable in its position such that in it maintains its set position despite vibrations. A pivoting arm which is rotatable about a fixed first axis is provided and a holder for the accessory is arranged on the free end of the pivoting arm. The holder is rotatable about a second axis provided on the pivoting arm and both the pivoting arm and the holder are lockable on their axes in a plurality of latched positions.