Window Door Handle with Nested Child Safety Lock
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Solution Overview
Problem
Existing window and door operating handles fail to meet aesthetic requirements due to their bulky design, and existing child safety devices complicate the structure, making them unsuitable for minimalist designs and increasing the overall height, while also being technically complex.
Innovation Solution
A compact actuating handle design with a stop body divided into a lower and upper part, incorporating a concentrically arranged locking disk and anti-fitting device that can be easily assembled and retrofitted, providing a child safety feature without significantly impacting the handle's appearance, and allowing for secure mounting with minimal components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a child safety lock is integrated into the operating handle, then unauthorized handling is prevented, but the structural complexity increases and the overall height increases
Solution Approach 1:
The patent combines the child safety lock mechanism directly into the stop body structure. The locking element is integrated with the stop body and handle neck, eliminating the need for separate mounting plates and brackets. This merging of components reduces overall structural complexity while maintaining the child safety functionality.
Solution Approach 2:
The locking mechanism is nested within the stop body structure. The locking element is positioned inside the stop body, with the actuating element accessible from the outside. This nesting approach allows the child safety lock to be housed within the existing handle structure without adding significant external complexity or height.
2Reliability
If a child safety lock is integrated into the operating handle, then unauthorized handling is prevented, but the overall height increases
Solution Approach 1:
By merging the child safety lock with the stop body structure, the patent eliminates the need for additional external mounting components that would increase the overall height. The locking mechanism shares the same spatial envelope as the stop body, maintaining a compact profile.
Solution Approach 2:
The locking element is positioned in a different spatial dimension within the stop body, utilizing the internal volume rather than extending the external height. The actuating element is designed to be accessible from the side or top of the handle, not requiring additional vertical space.
3Stability of the object's composition
If multiple mounting components are used to secure the handle, then the mounting robustness is improved, but the aesthetic appearance deteriorates
Solution Approach 1:
The patent merges multiple mounting functions into the stop body structure itself. The stop body is designed with integrated mounting features that provide robust securing of the handle while maintaining a clean, minimalist external appearance. The cover plate conceals any necessary mounting hardware from view.
Solution Approach 2:
The cover plate serves as an intermediary element that conceals the mounting hardware and structural components from view. This allows the mounting robustness to be maintained internally while presenting a clean, aesthetic external appearance. The cover plate mediates between the functional requirements and aesthetic requirements.
Data Source
Figure 1
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Figure 1b
AI summary
The invention relates to an operating handle for a window or door, comprising a rotatably mounted handle and an adjoining handle neck, the end face of which has a recess in which a polygonal element for actuating a locking mechanism formed in the window or door is secured. The stop body of the operating handle can be fixed to or in the window or door, wherein the handle neck of the handle is axially fixed and rotatable in or on the stop body.To create an operating handle for a window or door that meets even high aesthetic requirements through its minimalist design and can be easily equipped with a hardware lock (child safety device), the stop body comprises a lower and an upper part. A detent disc is arranged between the lower and upper parts, the detent disc having a central recess with a cross-sectional shape identical to the polygon. The lower and upper parts can be connected to each other by force, form, and/or friction. Furthermore, a hardware lock is arranged between the lower and upper parts, preferably as a pre-assembled unit sandwiched between them. In another embodiment, the cover plate of the hardware lock can form the upper part of the operating handle.