Actuation Handle Axial Detent Ring for Jam-Free Mounting
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Solution Overview
Problem
Existing actuation handles for doors and windows require complex and expensive special components, making them difficult to mount on standard profiles, and often require special tools for disassembly, which can lead to instability and jamming issues.
Innovation Solution
An actuation handle design featuring a handle neck with a guiding sleeve and a detent ring system, where the detent ring is axially movable and secured by a compression spring, allowing for easy mounting on standard doors and windows without special recesses, and ensuring stability and reliability through precise axial guidance and positive-locking mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If complex special components are used to achieve stable latching function, then reliability is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The latching mechanism is divided into two independent rings: a first detent ring mounted on the handle neck and a second detent ring mounted on the installation body. Each ring contains simplified latching elements (protrusions and recesses) that work together to provide stable latching without requiring complex integrated components.
Solution Approach 2:
A spring element is introduced as an intermediary component between the two detent rings. This spring provides the necessary force to engage the latching elements and ensures reliable positive-locking in functional positions, while keeping each ring's structure simple and manufacturable.
2Adaptability or versatility
If special recesses are provided in door or window profiles for mounting, then adaptability to specific applications is improved, but ease of manufacture and installation on standard profiles deteriorates
Solution Approach 1:
The installation body is designed with a standardized mounting interface that can be universally applied to both standard door/window profiles and custom applications. The separation of the latching mechanism from the mounting structure allows the same installation body to serve multiple purposes without requiring profile-specific modifications.
3Ease of operation
If axially-movable latching elements are used, then ease of operation is improved, but stability and reliability deteriorate due to tilting and jamming
Solution Approach 1:
The latching elements are segmented into two separate rings mounted on different components (handle neck and installation body). This segmentation allows each ring to be precisely guided in its movement, preventing tilting and jamming while maintaining ease of operation through axial movement.
Solution Approach 2:
Instead of moving latching elements laterally or radially, the design uses axial movement in the dimensional direction perpendicular to the engagement surface. This axial dimension provides smooth, guided motion that is resistant to tilting and jamming while maintaining operational ease.
4Reliability
If multiple latching elements are arranged circumferentially, then reliability of latching is improved, but device complexity and construction height increase
Solution Approach 1:
The latching elements are arranged axially along the movement path rather than being distributed circumferentially around the perimeter. This axial arrangement in the movement dimension provides reliable multi-position latching while keeping the construction height compact and minimizing the radial footprint.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design allows for cost-effective manufacturing and easy, quick installation on standard doors and windows, providing high stability and reliability by eliminating the need for special recesses and tools, while maintaining a unified and aesthetically pleasing appearance with reduced construction height.
Implementation Method 1
a compression-spring is arranged inside the handle neck that pushes the detent ring against that counter detent ring in the axial direction
Data Source
AI summary
An actuation handle having a handle, having a handle neck and rotatably connected to an installation body, is provided. The handle connects to an actuation element in the door or window via a driver. Two detent elements engage in at least one functional position of the handle. An axially movable, non-rotatably mounted detent ring includes a first detent element. A counter detent ring includes a second detent element that corresponds to the first detent element. A guide sleeve provides a non-rotating receptacle for the driver, aligns centrally with the rotary axis of the handle, and has guide elements along its inner circumference. The detent ring has an opening and has guide elements along its outer circumference. The detent ring is inserted into the guide sleeve and the opening receives the driver, while its guide elements are engaged with the guide elements of the guide sleeve in an axially movable manner.