Guide device for controlling the movement of a door of a corner cupboard
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Solution Overview
Problem
Folding corner cabinet doors often misalign when closing, risking damage to adjacent cabinets or cupboard parts due to the increased outer angle between door elements, especially when the angle exceeds 90°, leading to potential collisions and damage.
Innovation Solution
A control device with a base part and a control part that can pivot between inner and outer positions, coupled to the second door element during closing and decoupled during opening, to control the movement of the second door element, preventing it from hitting adjacent cabinets by guiding it through a guide groove and pin mechanism, and featuring locking and damping elements to ensure safe alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the outer angle between door elements is increased during opening, then the door elements can be pulled toward the user for easier operation, but the risk of collision with adjacent cabinets increases
Solution Approach 1:
The control device applies preliminary anti-action by using a control part that protrudes beyond the door opening plane to preemptively guide the second door element during closing movement. This prevents the door element from assuming a misaligned position that would cause collision with adjacent cabinets, countering the natural tendency of the door to swing outward during operation.
Solution Approach 2:
The control part acts as an intermediary between the second door element and the cabinet body. It mediates the movement by providing a guide groove that receives a guide pin, thereby controlling the trajectory of the door element and preventing harmful collisions while allowing easy operation.
2Manufacturing precision
If the second door element is controlled during closing movement, then alignment precision is improved, but the device complexity increases
Solution Approach 1:
The control device is segmented into distinct functional components: a base part attached to the cabinet body and a control part with a guide groove. This segmentation allows the alignment function to be isolated to specific components, making the overall system easier to manufacture and assemble while achieving precise door alignment.
Solution Approach 2:
The control device utilizes the door element's own components (guide pin on the second door element) to interact with the control part's guide groove. This self-service mechanism achieves precise alignment without requiring additional active control systems, motors, or sensors, thereby limiting the increase in device complexity.
3Reliability
If a control part protruding beyond the door opening is used, then the second door element can be guided safely, but the device complexity increases
Solution Approach 1:
The control part is merged with the base part to form an integrated control device. The control part protrudes beyond the door opening plane to provide guidance, while being structurally combined with the base part attached to the cabinet body. This merging reduces the number of separate components and simplifies the overall device structure while maintaining reliable door guidance.
Data Source
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AI summary
A control device for controlling the movement of a corner cabinet door (27) of a corner cabinet (11) is proposed, which has a cabinet body (13) provided with a door opening (25) and the corner cabinet door (27) between a door opening (25) closing position (28) and an open position (29) allowing access to an interior (24) of the cabinet body (13) is pivotably mounted on the cabinet body (13), wherein the corner cabinet door (27) is designed as a folding door, with a first door element (30) which is in the vicinity of the door opening (25) by means of a door bearing device (31) on the cabinet body (13) and with a second door element (32) which is pivotably mounted on the first door element (30) via pivot bearing means (33), with a on the cabinet body (13) attachable base part (47) and a control part (48) which is movable between an inner position (49) and an outer position (50) in which it projects beyond the plane of the door opening (25) on the base part (47). device, wherein the control part (48) can be coupled to the second door element (32) when closing by means of coupling means (51) and decoupled when opening, in such a way that at the end of the closing phase and at the beginning of the opening phase it stops the movement of the second door element (32 ) controls.