Door Dolly Weight-Actuated Clamping for Hands-Free Transport
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Solution Overview
Problem
Existing door dollies lack a mechanism that automatically clamps a door when it is placed on an actuator, requiring manual effort and additional steps.
Innovation Solution
A door dolly with a clamping linkage actuated by the weight of the door, featuring a pair of jaws that move together when the door is placed on an actuator, and wheels for transportation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual clamping mechanism is used, then door can be secured to dolly, but user effort and操作步骤 are increased
Solution Approach 1:
The door dolly system performs clamping automatically using the door's own weight as the actuating force. When the door is placed on the actuator, gravity causes the actuator to move downward, which triggers the linkage mechanism to close the jaws and clamp the door. This eliminates the need for manual intervention in the clamping process while maintaining a relatively simple mechanical structure.
Solution Approach 2:
The system is designed so that the actuator is pre-positioned and the linkage mechanism is pre-configured to respond automatically when the door is placed on the actuator. The mechanical components are arranged in advance to convert the downward motion of the actuator (caused by door weight) into the clamping action of the jaws, eliminating the need for additional manual steps during operation.
2Extent of automation
If automatic weight-actuated clamping is implemented, then manual effort is eliminated, but device complexity increases
Solution Approach 1:
The door's own weight serves as the actuating force for the clamping mechanism. The actuator is designed to be moved downward by the door's weight, which automatically triggers the linkage system to close the jaws. This self-service approach achieves full automation without requiring external power sources, control systems, or complex actuation mechanisms.
Solution Approach 2:
The actuator serves as an intermediary component that translates the downward force from the door's weight into motion that drives the linkage mechanism. This intermediary element simplifies the connection between the door weight and the clamping action, allowing automatic operation while maintaining mechanical simplicity through a clear force transmission path.
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
Eliminates the need for manual clamping, simplifying the process of securing a door to the dolly and facilitating easy transportation.
Implementation Method 1
the actuator is configured to move downwardly when a weight force is exerted by the door on the upper surface of the actuator
Data Source
AI summary
A dolly apparatus for clamping a door to a wheeled base for transportation of the door includes a base and a clamping linkage mounted on the base. The door is positionable on an upper surface of an actuator of the clamping linkage so that a weight of the door urges the actuator to move a pair of jaws of the clamping linkage toward each other above the actuator, thereby clamping the door. A pair of wheels are rotatably mounted to the base.