Wedge Rotation Stop Device for High Torque Adjustment
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Solution Overview
Problem
Existing building and fence closure drive devices with rotary stop devices face challenges in providing a simple, easily adjustable, and high-torque limiting mechanism for swing gates and doors, often requiring strong operators and complex adjustments.
Innovation Solution
A building or fence closure drive device with a rotation stop device featuring wedge elements and a clamping mechanism that allows for continuous adjustment of the stop torque, using a first wedge element with a wedge surface and a second wedge element with a stop surface, enabling form-fitting engagement and axial displacement for reliable torque absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rotary stop device with wedge elements and clamping mechanism is used, then the stop torque and adjustment precision are improved, but the device complexity increases
Solution Approach 1:
The rotary stop device is segmented into distinct functional components: first wedge element (70), second wedge element (72), and limiting device (74). This segmentation allows each component to perform its specific function efficiently while enabling independent adjustment and maintenance of individual parts, resolving the contradiction by organizing complexity into manageable segments that collectively provide high stop torque.
Solution Approach 2:
The device incorporates dynamic adjustment capability through the limiting device (74) which can selectively limit relative movement of the wedge elements in the axial direction. The circumferentially displaceable wedge surfaces allow continuous adjustment of the stop position, providing adaptability while maintaining structural integrity for high torque application.
2Measurement precision
If wedge elements with circumferential displacement capability are used, then the adjustment precision is improved, but the ease of operation deteriorates
Solution Approach 1:
The limiting device (74) acts as an intermediary mechanism that controls the relative movement between the first and second wedge elements. By selectively limiting axial movement while allowing circumferential adjustment, it provides precise control over the stop position without requiring complex adjustment procedures, thus improving ease of operation while maintaining high adjustment precision.
3Ease of manufacture
If a simple and cost-effective design is used, then the manufacturing cost is reduced, but the reliability of high torque absorption deteriorates
Solution Approach 1:
The rotary stop device employs a composite structural approach combining wedge elements made from material suitable for high torque transmission with a limiting device for precise positioning. The first and second wedge elements are designed with complementary wedge surfaces that distribute mechanical loads effectively, creating a composite system that achieves both cost-effectiveness through simple geometry and high reliability through optimized load distribution and material selection.
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 solution provides a reliable, continuously adjustable stop for rotating components, capable of absorbing high torques with a simple and cost-effective design, eliminating the need for expensive limit switches or complex clamping solutions, and ensuring secure door or gate positioning.
Implementation Method 1
a first wedge element (70) which can be positively attached to a component (36) of the building or fence closing drive device and has a first wedge surface (78) for arrangement in the circumferential direction
Implementation Method 2
The limiting device has a clamping element for clamping the wedge elements lying with their wedge surfaces against each other
Data Source
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AI summary
In order to obtain an adjustable, preferably continuously adjustable stop for restricting the rotary movement of drive-or-gearing elements in drives for enclosure or building closures, and which allows reliable support even against high torques using a few simple components, the invention relates to a rotary stop device (16) for a building or enclosure closing-drive device (14), for restricting a rotary movement of a drive-or-gearing element (18) of said building or enclosure closing-drive device (14) about a rotational axis (50), said rotary stop device (16) comprising: a first wedge element (70) that can be form-fittingly secured to a component of the building or enclosure closing-drive device (14) and comprises a first wedge surface (78) arranged in the peripheral direction relative to the rotational axis (50) of the drive-or-gearing element (18) requiring restriction, a second wedge element (72) that has a second wedge surface (80) for apprehending the first wedge surface (78), is arranged against said first wedge element (70), with the first and second wedge surfaces (78, 80) lying one over the other, so as to be displaceable in the peripheral direction, and comprises a stop surface (112) arrangeable in a radial and/or axial direction relative to the rotational axis (50) so as to restrict the rotary movement of the drive-or-gearing element (18), as well as a restriction device (74) for selectably and adjustably restricting a relative movement of said first and second wedge elements (70, 72) in the axial direction.