Push Button Mounting With Rotary Lock Plate for Thin Displays
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Solution Overview
Problem
Conventional methods for attaching a push button device to a support plate on a display screen either increase the device's thickness when using screws or require a latching mechanism on the support plate, which is not suitable for thin, transparent push button devices.
Innovation Solution
A push button device with a flange portion that latches to an opening in the support plate and an annular lock plate that is fixed by a snap-fit structure, allowing easy attachment and detachment without the need for a latching mechanism on the support plate, while maintaining a thin profile.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the push button device to the support plate, then the fixation is reliable, but the thickness of the push button device increases and the distance between the support plate and display screen increases
Solution Approach 1:
The engagement protrusions and engagement grooves are extracted from the push button device body and placed on the support plate instead. This allows the push button device to be fixed without increasing its thickness, as the fixation structures are located on the support plate rather than protruding from the push button device.
Solution Approach 2:
Instead of providing engagement structures on the push button device that protrude outward, the invention inverts the approach by providing engagement protrusions on the support plate that engage with grooves in the push button device. This reverses which component carries the fixation structures, eliminating the need for increased push button device thickness.
2Ease of operation
If a latching mechanism is provided on the support plate to fix the push button device, then the push button device can be easily attached and detached, but the support plate becomes more complex
Solution Approach 1:
The invention uses a rotary operation on the lock plate that dynamically changes the engagement state. Rotating the lock plate in one direction engages the convex portion with the concave portion to fix the push button device, while rotating in the opposite direction releases it. This dynamic mechanism enables easy attachment and detachment without complex latching structures on the support plate.
Solution Approach 2:
The lock plate on the push button device side performs the fixation function independently without requiring a latching mechanism on the support plate. The convex and concave engagement structures on the lock plate and push button device body respectively enable self-contained attachment and detachment operations.
3Length of moving object
If the push button device is made thin with transparent material, then the display screen can be seen through it, but conventional fixing methods cannot be applied
Solution Approach 1:
The invention segments the fixation function into separate components: engagement protrusions on the support plate and engagement grooves on the push button device body. This segmentation allows the push button device to remain thin and transparent while the fixation structures are distributed between the support plate and the push button device edges, making both thin design and easy fixation applicable.
Data Source
AI summary
There is provided a push button device with which a support plate can be disposed close to a display screen without providing the support plate with a latching mechanism, and which can be easily attached and detached. The invention comprises a push button device that is inserted into the opening of a transparent plate from the front side, and an annular lock plate that is disposed on the back side of the transparent plate and is fitted to the outer peripheral portion of the bottom part of the push button device from the back side. A snap-fit structure that is fixed to the outer peripheral portion of the bottom part by rotating the lock plate is provided to the outer peripheral portion of the bottom part of the push button device and to the inner peripheral portion of the lock plate. The lock plate is configured to have a larger diameter than the opening in the transparent plate, and such that the surface on the support plate side hits the support plate in a state of being fixed to the outer peripheral portion of the bottom part.