Buttonless Elevating Latch Structure for Display Height Adjustment
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Solution Overview
Problem
Conventional elevating devices for display devices require a push-type or press-type elevation button for height adjustment, which is inconvenient and aesthetically unappealing, and lack an automatic latching and releasing mechanism, especially when transitioning between vertical and horizontal statuses, complicating packaging and increasing transportation costs.
Innovation Solution
An elevating device with a resilient shaft rod and latching member featuring arrow-shaped positioning blocks and a switching mechanism with a torque spring, allowing for automatic latching and releasing without buttons, and enabling compact design and reduced packing volume by utilizing a resilient shaft rod that automatically recovers and a latching member with guiding planes for smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a push-type or press-type elevation button is installed for height adjustment, then the display device can be adjusted to ascend/descend, but the operation is inconvenient and the exposed button negatively affects the appearance
Solution Approach 1:
The patent removes the traditional push-type or press-type elevation button from the display device structure. Instead, it uses the elevation button assembly that integrates with the base plate and support leg, allowing height adjustment through the support leg's telescopic structure without requiring a separate exposed button on the device body.
Solution Approach 2:
The elevation button function is merged with the support leg assembly. The elevation button is integrated into the base plate structure, and the height adjustment mechanism is combined with the telescopic support leg, eliminating the need for a separate exposed button and simplifying the overall appearance.
2Reliability
If a conventional latching mechanism is used for positioning, then the display device can be positioned at fixed heights, but the operation requires buttons and lacks automatic latching function
Solution Approach 1:
The latching mechanism is designed to automatically latch and unlatch based on the position of the support leg. When the support leg reaches a predetermined position, the latching member automatically engages with the positioning groove to lock the height. The mechanism uses the movement of the support leg itself to trigger the latching action, eliminating the need for manual button operation.
Solution Approach 2:
The latching mechanism transitions from a static button-operated system to a dynamic automatic system. The latching member is positioned to engage with positioning grooves at specific heights along the support leg's travel path. As the support leg moves, the latching member automatically engages or disengages based on the leg's position, providing dynamic automatic latching without manual intervention.
3Reliability
If the latching mechanism is used as a downward movement limitation, then the supporting seat can be positioned, but automatic latching and releasing function for status transition is not provided
Solution Approach 1:
The latching mechanism is designed to dynamically respond to changes in the support leg's position and orientation. During status transition (e.g., from vertical to horizontal), the support leg's movement automatically triggers the latching member to disengage from the positioning groove. The mechanism adapts to different statuses by using the leg's own movement to control latching and releasing, providing automatic functionality for status transitions.
Solution Approach 2:
The latching mechanism is pre-positioned to engage with positioning grooves at specific locations along the support leg's path. Before the status transition is complete, the latching member is already positioned to automatically engage or disengage at the appropriate moment, ensuring smooth and automatic latching/releasing during status transitions without requiring additional control actions.
4Volume of stationary object
If the display device is packaged in vertical status, then the packing volume is large, but transitioning to horizontal status requires manual intervention
Solution Approach 1:
The latching mechanism automatically adjusts during status transition by using the movement of the support leg itself to trigger latching and releasing. When the support leg moves from vertical to horizontal status, the latching member automatically disengages from the positioning groove, allowing the device to transition without manual intervention. This self-service capability simplifies the packaging and unpacking process.
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 solution provides a user-friendly, aesthetically enhanced elevating device that automatically adjusts height and reduces packing volume, simplifying operation and lowering production costs through the integration of automatic latching and releasing functions.
Implementation Method 1
a resilient shaft rod capable of automatically recovering towards a central line thereof
Implementation Method 2
a constant force spring is installed between the two mobile rails so the constant force spring can provide an elastic force to balance the net weight
Implementation Method 3
a switching mechanism having a swing sheet being protrudingly provided with a stopping member and provided with a torque spring
Data Source
AI summary
The present invention relates to an elevating device with latching function, comprises a supporting rack, a supporting seat, a constant force spring and a latching member. The supporting seat is able to be longitudinally moved with respect to the supporting rack, and the supporting seat is provided with a shaft rod capable of automatically recovering towards a central line thereof, the latching member is fastened on the bottom end of the foundation sheet, an arrow-shaped positioning block that is oblique with respect to the shaft rod is installed in the front end of the latching member, a positioning concave slot is formed at bottom ends of a first and a second guiding planes of the positioning block; when the shaft rod is moved with the supporting seat in the supporting rack, the shaft rod is able to be downwardly moved along the first guiding plane to enter the positioning concave slot for forming a latching status; when the shaft rod is against downwardly moved in the positioning concave slot, the shaft rod is released from the positioning concave slot for forming a releasing status, and the shaft rod is able to be upwardly moved along the second guiding plane. Through the latching member, the elevating device is able to be ascended/descended without the need of any button, so the operation is easier and the appearance of the display device is more compact and simplified.