Automatic Sliding Door Mechanical Reset Mechanism

Solution Overview

Problem

Conventional sliding doors cannot automatically return to their initial position if users forget to close them, and electrically automatic sliding doors are often too expensive for many users.

Innovation Solution

An automatic sliding door system comprising a rail, a reset component, and a pulley set, where the reset component includes elastic components and a switch to drive the door panel back to its closed position using a pulley system, allowing for automatic closure without the need for electric power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If an electrically automatic sliding door is used to enable automatic closure, then the door panel can be opened or closed automatically, but the cost becomes expensive

Engineering Contradiction:

Improveautomatic closureVSAvoidcost

Core Design Contradiction:

Extent of automationVSEase of manufacture

Solution Approach 1:

The patent replaces the electrical motor-driven system with a purely mechanical automatic closure system. The door panel automatically closes through mechanical components including a reset component with elastic elements, a pulley set, and a rail system that work together to restore the door to its initial closed position without requiring electric power

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The door panel is designed to automatically return to its closed position through self-contained mechanical means. When the door is opened, the reset component stores energy and the pulley set moves to a positioned state; upon release, these components automatically drive the door panel back to closed, enabling the system to serve itself without external electrical control

Inventive Principle:

Principle #25Self-service

2Ease of manufacture

If a conventional sliding door is used, then the cost is low, but the door panel cannot be opened or closed automatically

Engineering Contradiction:

ImprovecostVSAvoidautomatic closure

Core Design Contradiction:

Ease of manufactureVSExtent of automation

Solution Approach 1:

The patent replaces the electrical motor-driven system with a purely mechanical automatic closure system. The door panel automatically closes through mechanical components including a reset component with elastic elements, a pulley set, and a rail system that work together to restore the door to its initial closed position without requiring electric power

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The door panel is designed to automatically return to its closed position through self-contained mechanical means. When the door is opened, the reset component stores energy and the pulley set moves to a positioned state; upon release, these components automatically drive the door panel back to closed, enabling the system to serve itself without external electrical control

Inventive Principle:

Principle #25Self-service

3Extent of automation

If an electrically automatic sliding door is used to achieve automatic closure, then the door returns to initial position automatically, but the device complexity increases

Engineering Contradiction:

Improveautomatic closureVSAvoidsystem complexity

Core Design Contradiction:

Extent of automationVSDevice complexity

Solution Approach 1:

The patent replaces the electrical motor-driven system with a purely mechanical automatic closure system. The door panel automatically closes through mechanical components including a reset component with elastic elements, a pulley set, and a rail system that work together to restore the door to its initial closed position without requiring electric power

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The door panel is designed to automatically return to its closed position through self-contained mechanical means. When the door is opened, the reset component stores energy and the pulley set moves to a positioned state; upon release, these components automatically drive the door panel back to closed, enabling the system to serve itself without external electrical control

Inventive Principle:

Principle #25Self-service

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

Enables automatic closure of the door panel, reducing installation costs and complexity while ensuring the door returns to its initial position, addressing the limitations of conventional and electrically automatic sliding doors.

Implementation Method 1

a reset component (20), wherein the reset component (20) is mounted on a first end of the rail (10) and is fixed to the door frame

Methodology Applied

Scientific EffectElasticity: Elasticity

Implementation Method 2

a pulley set (30), wherein the pulley set (30) is slidably mounted in the rail (10), and a bottom end of the pulley set (30) extends out the rail (10)

Methodology Applied

Scientific EffectPulley: Pulley

Data Source

PatentUS10597922B2Automatic sliding door

Publication Date: 2020.03.24 CHANG LIANG YU

AI summary

An automatic sliding door has a rail, a reset component, a pulley set, and a door panel. The rail is mounted on a top surface of a door frame. The reset component is mounted on a first end of the rail and is fixed to the door frame. The pulley set is slidably mounted in the rail, and a bottom end of the pulley set extends out of the rail. The door panel is mounted at the bottom of the pulley set, and the pulley set drives the door panel to slide.