Display Control Knob With Push-Select for Crowded Machine Panels
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Solution Overview
Problem
Control panels of machines face space constraints while requiring efficient operation and ease of use, as existing control knobs do not effectively utilize space without compromising operational efficiency.
Innovation Solution
A control knob with an integrated electronic display module, operational mode display controller, detent mechanism, and microcontroller module, along with a tactile switch and return spring, allowing for compact design and efficient operation by displaying and selecting operational modes through rotational and depressible movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple control knobs are disposed on a control panel to control various operational modes, then the machine can control multiple operational modes, but the control panel space is consumed and becomes crowded
Solution Approach 1:
The patent combines multiple control functions (rotational control for mode selection and push control for activation) into a single integrated control knob. The control knob includes a control member that can rotate to select different operational modes and can be pushed to activate the selected mode, eliminating the need for separate control knobs for each function and reducing control panel space
Solution Approach 2:
The control knob is designed to perform multiple functions: it can rotate to select different operational modes (first function) and can be pushed to activate the selected mode (second function). This multi-functional design allows a single control element to replace what would traditionally require multiple separate controls, thereby saving space on the control panel
2Area of stationary object
If control knobs are integrated with electronic display modules and multiple mechanisms, then space utilization is improved, but the device complexity increases
Solution Approach 1:
The control knob employs a nested structure where the control member is rotatably coupled to the housing, the push button mechanism is integrated within the control member, and the electronic display module is coupled to the housing. These components are arranged in concentric layers, with each component nested within or around the others, maximizing space utilization while maintaining functional independence of each element
Solution Approach 2:
The control knob is divided into distinct functional segments: a control member for rotational mode selection, a push button mechanism for activation, a detent mechanism for positioning, and an electronic display module for visual feedback. Each segment is independently designed and can be manufactured separately, then assembled together. This segmentation allows for modular manufacturing and assembly, reducing overall complexity despite the multi-functional nature of the device
3Measurement precision
If a detent mechanism is added to provide controlled incremental rotational movement, then the operational precision is improved, but the device complexity increases
Solution Approach 1:
The detent mechanism is designed to automatically engage with the control member at predetermined rotational positions without requiring external actuation or complex control systems. As the control member rotates, the detent mechanism self-activates to provide tactile feedback and maintain precise positioning at each incremental step, eliminating the need for additional sensors or actuators to achieve precise rotational control
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 control knob efficiently utilizes control panel space by integrating essential components, enhancing operational efficiency and ease of use with tactile feedback and visual/auditory alerts, while protecting internal components from damage.
Implementation Method 1
the operational mode selector is biased into the undepressed position by a return spring such that upon movement of the operational mode selector from the undepressed position into the depressed position the operational mode selector is thereafter urged back into the undepressed position by the return spring
Implementation Method 2
the control knob includes a tact switch (250) operably-connected with the microcontroller, said tact switch (250) being configured for actuation in to an ON state when the operational mode selector is arranged in to the depressed position
Data Source
Figure 1A~1B
Figure 1C~1D
Figure 1E~2A
AI summary
A control knob for controlling operation of a machine, the control knob including: an attachment member configured for attaching the control knob to a surface of the machine so that the control knob is operably connectable with the machine to control operation thereof; a display member comprising an electronic display module disposed thereon; an operational mode display controller for controlling display of operational modes of the machine upon the electronic display module, said operational mode display controller being configured for rotational movement around the electronic display module amongst a plurality of rotational positions, said operational mode display controller being operably connected with the electronic display module such that, responsive to the rotational movement of the operational mode display controller amongst the plurality of rotational positions, the electronic display module is configured to display a plurality of operational modes of the machine corresponding to the plurality of rotational positions; and an operational mode selector for controlling selection of one of the plurality of operational modes of the machine when said one of the plurality of operational modes is displayed on the electronic display module, the operational mode selector being configured for movement between at least a first position and a second position to actuate selection of the operational mode displayed on the electronic display module.