Pedestrian Signal Push-Button Box with Inclined Cabinet
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional push-button boxes for pedestrian signal lamp devices are prone to injuries from protruding parts, rust due to exposed coatings, accumulation of dirt and dust, and are not user-friendly, especially for visually impaired individuals, with a vulnerable structure and inadequate sound pressure.
Innovation Solution
A push-button box design featuring a rear-face opening cabinet with a front case that covers the opening diagonally, incorporating a capacitance sensor for easy operation, a speaker mounted on the front case for improved sound pressure, and distinct push button orientations for different users, along with a display for information synchronization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the top face of the cabinet is provided as a flat horizontal surface, then the cabinet structure is simple, but foreign matter such as dirt and dust accumulates on the surface
Solution Approach 1:
The top face of the cabinet is designed with an inclined surface instead of a flat horizontal surface. This curved/angled geometry prevents foreign matter such as dirt and dust from accumulating on the surface, while maintaining structural simplicity and ease of manufacture.
2Reliability
If the protruding part extends beyond the front face of the lid for waterproofing, then waterproofing performance is improved, but pedestrians may be injured upon contact and coating peeling occurs leading to rust
Solution Approach 1:
The protruding part is designed with an inclined surface that slopes downward toward the front. This curved geometry maintains the waterproofing function by extending beyond the lid's front face while eliminating sharp edges that could injure pedestrians. The inclined surface also prevents water accumulation and coating peeling, thereby preventing rust.
3Device complexity
If the push button is positioned on a flat surface, then the cabinet structure is simple, but visually impaired persons cannot easily locate and operate it by grope
Solution Approach 1:
The push button is positioned on an inclined surface rather than a flat surface. This curved geometry creates a distinctive tactile profile that allows visually impaired persons to easily locate and identify the push button by grope, while maintaining overall cabinet structure simplicity.
4Device complexity
If the speaker is mounted on the control board, then the device structure is compact, but sufficient sound pressure cannot be achieved
Solution Approach 1:
The speaker is relocated from the two-dimensional control board surface to the three-dimensional inclined surface of the cabinet. This dimensional change allows the speaker to be positioned in a location that provides sufficient sound pressure while maintaining compact overall device structure.
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
Enhances waterproofness, safety, and user-friendliness, improves durability and strength, and facilitates easy mounting of the speaker while providing clear operation and sound guidance, making the device more accessible and effective.
Implementation Method 1
incorporating a capacitance sensor for easy operation
Data Source
AI summary
A push-button box that can enhance the waterproofness and the safety of the structure of the cabinet, and prevent a foreign matter from being left thereon, that enhances the operability of the push button, thereby being user friendly, and that is excellent in durability in operation and strength. In the push-button box 10 for instructing an operation of a pedestrian signal lamp device, a cabinet 11 that accommodates various components is formed of a base main body 20, which constitutes the rear face of the cabinet 11, being opened on the front face side, and a front case 30, which is combined with the base main body 20 so as to cover the opening thereof from forward, being provided with a push button 40, and in the state in which said front case 30 covers the opening of said base main body 20 from forward, the rear face thereof is opened downward in a diagonally rearward direction in the cabinet 11.