Slotted Roller Door Sprocket Mounting Without Rod Disconnection
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Solution Overview
Problem
Existing roller door assemblies face difficulties in installation, maintenance, and cost due to the need to disconnect the non-rotating support rod, which increases the required skill level and complexity of the mechanical coupling between the motor and the door-supporting frame.
Innovation Solution
A sprocket with a slot is positioned about the non-rotating support rod without disconnecting it, and an adjustable connector is used to attach the sprocket externally to the door-supporting frame, allowing for flexible and efficient mechanical coupling with a drive mechanism, such as a chain or belt, without requiring the support rod to be removed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a sprocket is used to mechanically couple the motor to the door-supporting frame, then the mechanical coupling is achieved, but the non-rotating support rod must be disconnected from the installed position, increasing installation complexity and cost
Solution Approach 1:
A frame adapter is introduced as an intermediary component between the motor assembly and the door-supporting frame. The frame adapter includes a mounting plate that attaches to the door-supporting frame and a drive adapter that couples to the motor output shaft, allowing the sprocket to be mounted without disconnecting the non-rotating support rod. This intermediary device resolves the contradiction by enabling mechanical coupling while maintaining the installed position of the support rod.
Solution Approach 2:
The coupling mechanism is divided into separate modular components: the frame adapter with mounting plate, the drive adapter, and the sprocket assembly. This segmentation allows each component to be independently installed and adjusted, eliminating the need to disconnect the non-rotating support rod while achieving the desired mechanical coupling between the motor and door-supporting frame.
2Adaptability or versatility
If the sprocket is positioned externally to the roller door, then flexible motor placement is enabled, but the installation process becomes more complex
Solution Approach 1:
The frame adapter incorporates adjustable positioning features that allow the sprocket to be mounted at various external positions on the door-supporting frame. The mounting plate can be attached at different locations, and the drive adapter allows for angular adjustment, providing dynamic adaptability for motor placement while maintaining a standardized installation procedure that does not require disconnecting the support rod.
Data Source
AI summary
A sprocket having a slot formed therethrough can be disposed about the non-rotating support rod of a given roller door. This sprocket is then attached to the door-supporting frame such that the sprocket is positioned externally to the roller door. A connector can serve to effect this attachment. This connector might comprise a plurality of bolts with support sleeves. By this approach, the sprocket can be maintained at a fixed distance from the door supporting frame. This connector might also comprise an adjustable connector that adjustably and fixedly connects the sprocket with respect to the door-supporting frame. By one approach, the sprocket connects directly to the door-supporting frame. By another approach, if desired, the sprocket connects to a frame interface which connects, in turn, to the door-supporting frame. This frame interface can itself also have a slot formed therethrough to again facilitate placing the frame interface into an installed position.