Pedal Cover Structure for Blocking Dust and Moisture Entry
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Solution Overview
Problem
Conventional pedal devices with covering members are prone to wear and damage, allowing foreign matter such as dust and moisture to enter the housing and compromise the reaction force generating mechanism.
Innovation Solution
A pedal device design featuring a covering portion positioned between the housing connection portion and the pedal back surface, which prevents wear and damage, and covers the housing hole to block foreign matter entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover member is provided to cover the pedal, then the pedal appearance is improved and protected, but the cover member is prone to wear and damage from being stepped on
Solution Approach 1:
The cover member is divided into two distinct functional portions: a housing connection portion that remains stationary and connected to the housing, and a covering portion that can move with the pedal during operation. This segmentation allows the stationary part to provide structural support while the moving part follows the pedal's motion, preventing wear from direct contact between the cover member and the operator's foot.
Solution Approach 2:
The covering portion of the cover member is designed to move dynamically with the pedal during operation, rather than being fixed. This dynamic design allows the covering portion to follow the pedal's motion trajectory, preventing it from being compressed or damaged when the operator steps on the pedal, while still providing effective coverage of the housing hole.
2Stability of the object's composition
If the cover member is connected to the housing, then the cover member is stable, but foreign matter can enter through the housing hole when the pedal moves
Solution Approach 1:
The cover member is segmented into a housing connection portion that provides stable attachment to the housing, and a covering portion that can move independently to track the pedal's motion. This segmentation allows the cover member to maintain stability through its connection while the covering portion dynamically adjusts to prevent gaps that would allow foreign matter entry.
Solution Approach 2:
The covering portion acts as an intermediary element between the stationary housing connection portion and the moving pedal. It transfers the motion from the pedal to the cover structure while maintaining continuous coverage of the housing hole, preventing foreign matter from entering through gaps that would exist if a rigid fixed connection were used.
3Object-affected harmful factors
If the covering portion is positioned between the housing connection portion and the pedal back surface, then the housing hole is effectively covered, but the cover member structure becomes more complex
Solution Approach 1:
The cover member is divided into two functional portions: a housing connection portion for stable attachment and a covering portion for blocking the housing hole. This segmentation allows each portion to be optimized for its specific function while maintaining a relatively simple overall structure that effectively prevents foreign matter entry.
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
Effectively prevents foreign matter from entering the housing, maintains the integrity of the reaction force generating mechanism, and reduces wear on the cover member.
Implementation Method 1
a reaction force generating mechanism configured to generate a reaction force against a stepping force of the operator applied to the pedal by receiving a force from the pedal through the connecting rod and by an elastic deformation
Data Source
AI summary
A pedal device includes a pedal, a connecting rod, a reaction force generating mechanism, a housing having a housing hole for allowing the connecting rod to pass therethrough when the pedal is stepped on by an operator, and a cover member. The cover member includes a first connecting portion and a covering portion. The first connecting portion is connected to a housing end portion of the housing forming a housing hole. The covering portion is arranged at a position between the first connecting portion and a back surface of the pedal and is connected to the first connecting portion to cover the housing hole.