Interchangeable Button Mechanism for Wall Control Device
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Solution Overview
Problem
Existing wall-mounted control devices lack aesthetically pleasing designs with interchangeable buttons, often featuring bulky or difficult-to-assemble buttons that do not meet user expectations for both functionality and appearance.
Innovation Solution
A wall-mounted control device with a housing assembly and interchangeable buttons that can be removably attached, featuring a front housing portion with button zones, side walls, and alignment orifices for secure attachment, allowing for various button configurations such as single or multi-zone height buttons with backlighting and adjustable lighting, providing a sleek and customizable interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If traditional buttons are used in wall-mounted control devices, then the device can be manufactured with simple structure, but the buttons become bulky and aesthetically unpleasing
Solution Approach 1:
The button assembly is segmented into separate components: a decorative cap with recessed indicia, a button body, and a stem. This segmentation allows each component to be optimized independently - the cap provides aesthetic appearance while the internal mechanism provides functionality, resolving the contradiction between appearance and structural simplicity.
Solution Approach 2:
The button structure uses nesting where the cap encompasses the button body, which in turn contains the stem and switching mechanism. This nested arrangement consolidates multiple functional elements into a compact package, achieving sleek external dimensions without sacrificing internal mechanical complexity.
2Adaptability or versatility
If buttons are made removable and interchangeable, then customization and adaptability are improved, but assembly difficulty increases
Solution Approach 1:
The button stem is pre-formed with a molded-in groove that automatically aligns with corresponding protrusions on the receptacle. This preliminary formation of alignment features during molding eliminates the need for complex assembly procedures, allowing interchangeable buttons to be easily installed without specialized tools or techniques.
Solution Approach 2:
The button assembly incorporates self-aligning and self-latching features where the molded groove and protrusion geometry automatically guide the button into correct position and secure it without external intervention. This self-service mechanism simplifies the assembly process while maintaining interchangeability.
3Loss of information
If button width is increased for better visibility, then user interface clarity is improved, but the device width exceeds standard gang box openings
Solution Approach 1:
The indicia are moved from the horizontal face of the button to the vertical recessed surface of the cap. This dimensional relocation allows the visible face of the button to remain compact for fitting within gang boxes, while the recessed vertical surface provides adequate space for clear, legible indicia without increasing the device's horizontal footprint.
Data Source
AI summary
A control device for controlling at least one associated load and comprising a housing assembly defining a plurality of button zones each comprising at least one switch. The control device further comprises a plurality of interchangeable buttons adapted to be removably attached to the housing assembly over one or more of the button zones. Each button may comprise a front wall and at least one projection extending from a rear surface of the button and adapted to depress an aligned switch when the button is pressed. Each button may also comprise at least one abutment extending from the rear surface of the button and adapted to abut against the front housing portion such that at least a portion of the button pivots or deflect with respect to the at least one abutment when pressed.