Display Mounting Assembly With One-Handed Angle Locking
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Solution Overview
Problem
Current display assemblies for point-of-sale machines require users to use both hands to adjust and fix the touch screen to a desired angle, as the lock pin must be removed and reinserted, making it cumbersome for users of different heights to operate.
Innovation Solution
A display assembly design featuring a stand, mounting assembly, and handle with non-coaxial pivots and engagement structures, allowing the display to be adjusted and fixed to a desired angle using the handle's handheld part, enabling one-handed operation by pivoting and engaging/disengaging the second engagement structure with first engagement structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lock pin is used to fix the touch screen in position, then the touch screen can be securely fixed, but the user must use both hands to operate (one hand to support the touch screen, the other to insert/remove the lock pin)
Solution Approach 1:
The patent combines the support function and the locking function into a single integrated component (the handle assembly). The handle serves both to support the display during adjustment and to engage/disengage the locking mechanism through a single pivoting motion, eliminating the need for separate hand operations.
Solution Approach 2:
The handle assembly is designed to automatically engage with the lock pin when pivoted to certain positions, and automatically disengage when pivoted to the release position. The system uses its own structural movement to perform the locking and unlocking functions without requiring external manual intervention beyond the initial pivot action.
2Adaptability or versatility
If the lock pin structure is used, then the display can be fixed at desired angles, but the adjustment process requires multiple steps and both hands to complete
Solution Approach 1:
The locking mechanism is segmented into discrete engagement positions (first engagement position, second engagement position, third engagement position) corresponding to different display angles. Each position provides a specific locking function, allowing the display to be secured at multiple predetermined angles through a single continuous pivoting motion of the handle.
3Device complexity
If the first pivot is coaxial with the second pivot, then the structure would be simpler, but the engagement structure cannot be moved along the radial direction to engage with multiple first engagement structures
Solution Approach 1:
The patent deliberately uses non-coaxial pivots (first pivot and second pivot at different positions) to create an asymmetric geometry. This asymmetry enables the engagement structure to move along the radial direction of the first pivot when the handle is rotated, allowing it to sequentially engage with multiple first engagement structures positioned at different radial locations, thereby achieving multi-position locking capability.
Data Source
AI summary
A display assembly including a stand, a mounting assembly and a display. The mounting assembly includes a fixed base, a first pivot, a pivotable base, a second pivot, a handle, a plurality of first engagement structures and a second engagement structure. The handle includes a handheld part and a mounting part. The mounting part is connected to the handheld part and pivotally connected to the pivotable base via the second pivot. The first engagement structures are disposed at one of the fixed base and the mounting part of the handle. The second engagement structure is disposed at another one of the fixed base and the mounting part of the handle. The display is fixed on the pivotable base. The first pivot is not coaxial with the second pivot so that the second engagement structure is configured to be engaged with any one of the first engagement structures.