Intercom Lever Mechanism with Magnetic Biasing
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Solution Overview
Problem
Prior intercom stations have laborious and uncomfortable volume adjustment mechanisms, prone to errors, due to the need to constantly press levers to maintain connections and the lack of intuitive feedback during operation.
Innovation Solution
The intercom station incorporates a lever mechanism biased by both a magnet and a spring element, providing a magnetic locking effect for easier operation and clear tactile feedback, along with a rotatably mounted adjusting element for volume control, allowing for comfortable and intuitive parameter setting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lever mechanism is used for control, then the connection can be established and maintained, but the operator must constantly press the lever which is laborious and uncomfortable
Solution Approach 1:
The lever mechanism is designed to automatically return to its neutral position after being actuated, without requiring continuous operator pressure. The spring element provides the restoring force that automatically resets the lever, making the system self-service and eliminating the need for constant manual pressing to maintain connections.
Solution Approach 2:
The lever operates in periodic cycles: when pressed, it establishes a connection; when released, the spring automatically returns it to the neutral position, interrupting the connection. This periodic action allows connection establishment and termination through simple momentary presses rather than continuous pressure.
2Adaptability or versatility
If volume adjustment is made through programming controls, then different volume settings can be achieved, but the adjustment process is cumbersome and prone to errors
Solution Approach 1:
The magnet provides immediate tactile feedback to the operator during lever operation. As the lever approaches the neutral position, the magnetic attraction becomes noticeable, giving the operator clear sensory feedback about the lever's position and the connection state, making operation more intuitive and less error-prone.
Solution Approach 2:
The magnetic field replaces part of the mechanical spring system in providing restoring force. The magnet's attractive force assists the spring in returning the lever to neutral position, creating a smoother and more controllable mechanical response that reduces operator effort and improves adjustment precision.
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
This design enhances user comfort by reducing the effort required to maintain connections and improves the ease of adjusting parameters like volume, providing clear tactile feedback and intuitive operation.
Implementation Method 1
the lever cooperates with a magnet which exerts high forces on the lever, which is in a position near the center position, acting upon the lever into its center position
Implementation Method 2
at least one spring element separate from the magnet additionally acts upon the lever into the center position
Data Source
Figure 1a
Figure 2
Figure 3
AI summary
The invention relates, among other things, to a speaking station (10) for an intercom network (11), comprising a plurality of control elements (15a, 15b, 15c, 15d), each designed in the form of a lever (49a, 49b, 49c, 49d, 49e, 49f, 49g, 49h, 49i, 49j), wherein a lever can be moved manually from an inactive central position (39a) along a first direction (31) into a first switching position (39b) or alternatively along a second direction (32) opposite to the first direction into a second switching position (39c), wherein the lever is biased towards its central position.The special feature of the invention lies, among other things, in the fact that the lever (49) cooperates directly or indirectly with a magnet (71) which exerts high forces on the lever, which is in a position near the center position, acting upon the lever into its center position, wherein at least one spring element (73, 74) separate from the magnet additionally acts upon the lever into the center position (39a).