Buttonless Elevating Device with Automatic Latching Mechanism
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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 mechanism for easy operation and compact design, especially when transitioning between vertical and horizontal statuses for packaging.
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, enabling easy height adjustment and reduced packing volume by using a supporting rack with retaining rails and a constant force spring.
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. The buttonless design eliminates the exposed mechanical component that affected appearance while maintaining height adjustment functionality through a different mechanism involving the mobile rails and retaining rails interaction.
Solution Approach 2:
The elevating device utilizes the weight of the display device itself and the elastic force from the constant force spring to automatically drive the height adjustment process. The mobile rails interact with the retaining rails through the device's own operational movements, eliminating the need for external buttons or manual activation mechanisms.
2Volume of stationary object
If the latching mechanism is used to position the display device during packaging, then the packing volume is reduced and transportation cost is lowered, but the device lacks automatic latching and releasing function when transitioning between vertical and horizontal statuses
Solution Approach 1:
The latching member is pre-configured with positioning blocks that have guiding planes oriented to automatically engage with the mobile rails when the display device is in vertical or horizontal positions. This preliminary arrangement allows the device to automatically latch into position during packaging without requiring manual intervention or additional automated mechanisms.
Solution Approach 2:
The latching mechanism utilizes the dynamic movement of the mobile rails as they slide along the retaining rails during position transitions. The guiding planes on the positioning blocks are designed to interact with the moving rails, automatically converting the kinetic energy of position changes into latching action, enabling automatic latching and releasing during status transitions.
3Reliability
If a latching mechanism is installed between the retaining rails and mobile rails, then the positioning function is provided, but the structure becomes more complex and requires additional components
Solution Approach 1:
The latching member is integrated directly into the retaining rails structure, and the positioning blocks are incorporated into the mobile rails. This merging of functions allows the latching mechanism to be formed by the interaction of existing structural components rather than adding separate, complex latching assemblies. The guiding planes and positioning surfaces are combined with the rail structures themselves.
Solution Approach 2:
The retaining rails and mobile rails serve multiple functions: they guide the movement of the display device, provide structural support, and simultaneously act as the latching mechanism through their interacting surfaces. The constant force spring also serves dual purposes by providing both the elevating force and the latching force when engaged with the positioning blocks.
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 with automatic latching and releasing functions, simplifying operation and reducing packaging volume by allowing the device to adjust height without buttons and efficiently transition between statuses.
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
An elevating device with a latching function including a supporting rack, a supporting seat, a constant force spring and a latching member. The supporting seat moves longitudinally with respect to the supporting rack, and has a shaft rod automatically recovering towards a central line thereof. An arrow-shaped positioning block is installed in a 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 moves with the supporting seat in the supporting rack, the shaft rod moves downwardly along the first guiding plane to enter the positioning concave slot forming a latching status. When the shaft rod moves downwardly in the positioning concave slot, the shaft rod is released from the positioning concave slot forming a releasing status, and the shaft rod moves upwardly along the second guiding plane.