Folding Door Drive Layout With Remote Motor and Link Adjustment
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Solution Overview
Problem
In existing driving units for folding type doors, the integration of a motor with a hinge limits the capacity of the motor, making it difficult to accommodate larger motors due to size constraints, thereby reducing the degree of freedom in designing the door.
Innovation Solution
A driving device that separates the driving portion from the connecting portion, allowing the driving portion to be positioned at a distance from the hinge, and includes an adjusting portion that uses a cable or link mechanism to change the degree of folding of the lower door with respect to the upper door based on the driving force generated by the motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor is integrated with the hinge to drive the door, then the door can be driven effectively, but the motor size is constrained by the hinge space, limiting design freedom
Solution Approach 1:
The invention divides the door driving system into separate functional modules: the hinge unit (connecting portion) and the motor unit (driving portion). This segmentation allows each component to be optimized independently - the hinge provides rotational support while the motor provides driving force, eliminating the space constraints of integration and enabling greater design freedom in door configuration
Solution Approach 2:
The invention introduces a link mechanism as an intermediary between the motor and the door. This link mechanism transmits the driving force from the motor to the door through a connecting rod and hinge joint, enabling the motor to be positioned away from the hinge while still effectively driving the door, thus resolving the spatial constraint problem
2Power
If a larger capacity motor is used to drive heavier doors, then the driving force is sufficient, but the motor size increases making it difficult to place near the hinge
Solution Approach 1:
By separating the motor from the hinge, the invention allows the motor to be positioned in locations with sufficient space, such as within recessed portions of the door or in adjacent structures. This eliminates the constraint that motor size must be limited by hinge space, enabling the use of higher capacity motors for heavier doors without compromising installation feasibility
Solution Approach 2:
The invention transitions from a two-dimensional constraint (motor must be adjacent to hinge) to a three-dimensional solution by utilizing spatial relationships throughout the door structure. The link mechanism enables force transmission over distance, allowing the motor to be positioned in any location that provides adequate space, effectively adding a spatial dimension to the design freedom
Data Source
AI summary
A driving device is a driving device driving a door that includes an upper door and a lower door rotatably connected to the upper door, and includes: a driving portion that is provided at a position spaced apart from a connecting portion rotatably connecting the upper door and the lower door and generates a driving force for driving the upper door or the lower door; and an adjusting portion that changes a degree of folding of the lower door with respect to the upper door based on the driving force. Such a driving device can enhance the degree of freedom in designing a door.