Protective Door Frame Actuation for Hands-Free Operation
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Solution Overview
Problem
Existing protective doors for children and pets are difficult for adults to operate efficiently, especially when loaded with objects, due to the placement of operating mechanisms on the door rather than the frame, which can lead to cumbersome handling and reduced flexibility in operation.
Innovation Solution
A protective door design featuring a frame with a pivotable door element and a closure system where the actuating member is stationary on the frame, allowing the door to be opened by a defined stroke parallel to the pivot axis, enabling operation without hand-held mechanisms and allowing the door to swing open in both directions, with additional security features like spring-loaded slides and dual locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operating member is arranged on the door member, then the door can be operated by hand, but the operation becomes cumbersome when the operator is loaded with objects
Solution Approach 1:
The operating member is inverted from its conventional position on the door member to a stationary position on the frame. This allows the door to be operated by pushing or pulling the frame rather than manually manipulating a handle on the moving door, enabling hands-free or minimally-handed operation when carrying objects.
Solution Approach 2:
The door element is designed to be movable by a defined stroke parallel to the pivot axis through form-fitting blockage release, allowing the door to open automatically when pushed or pulled, reducing the need for complex manual manipulation of operating mechanisms.
2Reliability
If a form-fitting blockage is provided between the door member and frame, then security is improved, but the door cannot be opened easily
Solution Approach 1:
The form-fitting blockage is designed to be dynamic rather than fixed. The blockage can be released by moving the door element by a defined stroke parallel to the pivot axis, allowing the security mechanism to transition from a locked state to an unlocked state through simple linear motion rather than requiring complex manipulation.
Solution Approach 2:
The actuating member is positioned to preliminarily release the form-fitting blockage before the door needs to be opened. By moving the actuating member, the blockage is released in advance, enabling subsequent easy opening of the door by simply pushing or pulling it along the pivot axis direction.
3Adaptability or versatility
If the door can be pivoted open in two directions, then flexibility of use is improved, but the complexity of the pivot mechanism increases
Solution Approach 1:
The opening motion is segmented into two distinct phases: first, linear movement of the door element parallel to the pivot axis to release the form-fitting blockage; second, pivoting of the door about the pivot axis in either direction. This segmentation allows the complex two-directional opening capability to be achieved through simple, sequential motions rather than a complex mechanical mechanism.
Data Source
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Figure 3
Figure 4~5
AI summary
The invention relates to a protective door, in particular for children or pets, comprising a frame (1) which can be arranged in a fixed position and has a lower base (2) and two side parts (3, 4) extending upward from the base, a door member (6) which is articulated on the frame (1) and can be pivoted about a pivot axis (S), and a closure (5) by which the door member (6) and the frame (1) can be detachably secured to one another, wherein the closure (5) comprises an actuating member (9) for the at least partial release of the closure, the actuating member (9) being arranged in a fixed position on one of the side parts (3) of the frame.