Actuating Handle with Blocking Device for Compact Door Locking
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Solution Overview
Problem
Existing door operating handles with locking mechanisms have a high overall height, making them unsightly and difficult to operate, as the actuating member protrudes from the stop element, requiring two fingers for safe operation.
Innovation Solution
A compact operating handle design with a sliding element that can be displaced along a circle segment, integrated into the stop element, allowing for one-handed operation with a single finger, featuring a rotary slide and pinion mechanism that reduces overall height and simplifies actuation, with a roughened surface for secure grip and a recess to guide the sliding element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the actuating member protrudes from the end face of the stop element, then the locking device can be actuated, but the overall height increases and the optics become unsightly
Solution Approach 1:
The sliding element moves along a circle segment path instead of protruding linearly from the end face. This circular motion path allows the actuating mechanism to be integrated within the stop element's height, eliminating the need for a long protruding actuating member while maintaining full actuation capability.
Solution Approach 2:
The sliding element and its circular track are nested within the stop element structure. The actuating mechanism is contained inside the stop element rather than extending outward, achieving a compact design that reduces overall height while preserving functionality.
2Length of stationary object
If the actuating member is shortened to reduce overall height, then the optics improve, but the actuating member becomes harder to grip and operate
Solution Approach 1:
The actuating interface is transformed from a linear protruding member to a circular arc-shaped sliding element. This curved surface provides adequate finger contact area for easy gripping and sliding motion, eliminating the grippability problems associated with shortened linear actuating members.
Solution Approach 2:
The sliding element is designed to move along a circular path, creating a dynamic actuation interface that is naturally suited for finger operation. The curved trajectory provides ergonomic advantages for single-finger operation while maintaining compact dimensions.
3Length of stationary object
If a locking device is integrated into the stop element, then the overall height is reduced, but the device complexity increases
Solution Approach 1:
The sliding element serves multiple functions: it acts as the actuating interface for the locking device, follows a circular track for compact motion, and provides an ergonomic gripping surface. This multi-functionality reduces the need for separate components, simplifying the overall design despite the integrated configuration.
Solution Approach 2:
The locking device is segmented into modular components: the sliding element, the circular track, and the locking mechanism. This segmentation allows for easier manufacturing, assembly, and maintenance while achieving the compact integrated design.
Data Source
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AI summary
The invention relates to an operating handle (100) for a door, comprising a stop element (104) and a handle (102) for actuating a locking device arranged in the door. The handle (102) is rotatably mounted in the stop element (104) for actuating the locking device about a first axis of rotation. The operating handle (100) further comprises a locking device (106) which has a release position in which rotation of the handle (102) about the first axis of rotation is permitted, and a locking position in which rotation of the handle (102) about the first axis of rotation is blocked by the locking device (106). The operating handle (100) further comprises an actuating mechanism (112) for the locking device (106).According to the invention, the actuating mechanism (112) has a sliding element (108) which is displaceable along a circular segment centered around the first axis of rotation, wherein a displacement of the sliding element (108) along the circular segment causes actuation of the locking device (106).