Device for releasing a gas spring and seat unit with adjustable backrest with a gaz spring and said device
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Solution Overview
Problem
Existing gas spring actuation systems require significant forces to trigger and lack precise control over gas spring speed due to mechanical complexity and inefficiency, particularly in applications where space and power supply are limited.
Innovation Solution
A device with a programmable control unit and electric magnet system that adjusts voltage levels and activation times, coupled with a compact actuator design using a linear lifting magnet and elastic units, allowing for variable force application and reduced mechanical components, and a central deactivation/activation unit for enhanced safety and power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple lever actuating element is used to press directly on the gas spring trigger, then the device structure is simple, but considerable forces are required to trigger the gas spring and the triggering action is difficult to control
Solution Approach 1:
The patent replaces the simple mechanical lever actuating element with an electrically operated lifting magnet. This substitution eliminates the need for mechanical force transmission through levers and directly actuates the gas spring trigger through magnetic force, thereby reducing the triggering force requirement while improving controllability.
Solution Approach 2:
The patent introduces a control device that can vary the electrical parameters (voltage, current, pulse duration) supplied to the lifting magnet. By changing these parameters, the magnetic force can be precisely controlled, enabling smooth and adjustable triggering of the gas spring without requiring considerable mechanical force.
2Force
If additional levers and Bowden cable are added to reduce triggering force, then the required force decreases, but the device complexity increases
Solution Approach 1:
The patent eliminates the complex mechanical system of additional levers and Bowden cable by substituting it with an electrically operated lifting magnet. This single component performs the function of force reduction and transmission that previously required multiple mechanical elements, thereby reducing both force requirements and device complexity.
3Force
If a lifting magnet is used to actuate the gas spring, then the triggering force is reduced and control is improved, but the space required and power consumption increase
Solution Approach 1:
The patent employs a control device that supplies electrical energy to the lifting magnet in the form of controlled pulses rather than continuous power. By activating the magnet only for the brief duration needed to trigger the gas spring, energy consumption is minimized while still achieving the desired force reduction and control improvement.
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
Enables reliable, space-efficient, and adaptable gas spring control with reduced operational forces, improved safety through centralized power control, and efficient energy use, suitable for diverse applications including aircraft seating where power supply capacity is limited.
Implementation Method 1
the actuating device has an electric magnet unit that is supplied with electrical energy via a power supply and can be activated via a switching unit
Implementation Method 2
the device has an elastic unit, in particular a spring unit, under the action of which the anchor body is longitudinally displaceable
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A device for triggering a gas spring (1) comprising an actuation device (2), an actuating element (4) which is operatively connected to the actuating device (2) and which acts directly on an end trigger (3) of the gas spring (1), wherein the actuating element (4) is configured as a lever arrangement (5) which reduces or multiplies the force or path, wherein one of the levers (trigger lever (6)) presses directly onto the trigger (3), wherein the actuating device (2) comprises an electrical magnet unit (30), which is provided with electric energy via an electrical supply and can be activated via a switch unit (60), characterised in that there is a control unit (40) which can be activated via the switching unit (60) and activates the electric magnet unit (30) according to the signals of the switch unit (60), wherein the the magnet unit (30) is actuated such that for a predetermined time interval an override phase of the magnet unit (30) with an increased voltage and a subsequent holding phase with a reduced voltage are produced.