Vehicle Door Drive Belt Guide with Low-Friction Recessed Surface
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Solution Overview
Problem
Existing vehicle opening and closing body driving devices experience increased operation resistance when opening and closing the vehicle opening and closing body, which can lead to higher energy consumption and increased actuator size.
Innovation Solution
The vehicle opening and closing body driving device incorporates an annular driving belt with a coupling portion and a guide frame having a sliding contact surface with a low sliding resistance portion, featuring a plurality of recessed portions such as linear grooves, to reduce sliding resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the driving belt is in sliding contact with the guide frame extending within an annular shape, then the sliding door opens and closes in a stable manner, but the operation resistance of the opening and closing body increases
Solution Approach 1:
The sliding contact surface is divided into two distinct regions: a smooth contact region for stable guidance and a low sliding resistance portion with recessed portions for reduced friction. This local differentiation allows the guide frame to simultaneously provide stability through the smooth region and reduce operation resistance through the low resistance region with grooves that minimize contact area and friction between the driving belt and guide frame.
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 implementation of the low sliding resistance portion on the guide frame significantly reduces the sliding resistance of the driving belt, thereby decreasing the operation resistance of the opening and closing body, allowing for smaller actuators and reduced manual operation force.
Implementation Method 1
The sliding contact surface is provided with a low sliding resistance portion having a plurality of recessed portions
Data Source
AI summary
A vehicle opening and closing body driving device includes an annular driving belt including a coupling portion coupled to an opening and closing body of a vehicle and configured to be rotationally driven, and a guide frame having a sliding contact surface with which the driving belt is in sliding contact and extending in an opening and closing operation direction of the opening and closing body. The sliding contact surface is provided with a low sliding resistance portion having a plurality of recessed portions.