Height-Adjustable Carrying Device with Integrated Handle Release
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Solution Overview
Problem
Existing carrying devices require two hands to adjust the height of a monitor, as one hand is needed to swivel the device mount and the other to actuate the pushbutton for releasing the pneumatic spring, making one-hand operation unsatisfactory.
Innovation Solution
A carrying device with a height-adjustable bracket featuring a self-locking pneumatic spring and a release element integrated into the handle, utilizing a bowden cable or similar transmission means to actuate the valve, allowing the bracket to be swiveled while releasing the spring's blocking function with a single hand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a separate pushbutton is arranged laterally on the bracket to actuate the pneumatic spring valve, then the pneumatic spring can be released for height adjustment, but two hands are required for operation (one for swiveling the device mount and one for actuating the pushbutton)
Solution Approach 1:
The release element is integrated directly into the handle assembly, merging the height adjustment function and the pneumatic spring release function into a single operational unit. This allows the user to perform both actions (swiveling and releasing) with one hand, resolving the technical contradiction between ease of operation and device complexity.
2Ease of operation
If the release element is integrated into the handle area with transmission means, then single-handed operation is enabled, but additional transmission components (bowden cable, rocker arm) are introduced
Solution Approach 1:
A bowden cable serves as an intermediary transmission element between the release element in the handle and the valve actuation point. This allows the release element to be positioned ergonomically in the handle area while still effectively actuating the valve, enabling single-handed operation without requiring complex direct coupling mechanisms.
3Ease of operation
If the release element is positioned in the area of the handle, then the release element and handle can be operated as one assembly unit for swiveling the bracket, but the valve actuation requires additional mechanical linkage
Solution Approach 1:
The system uses a pneumatic spring with a valve mechanism that can be actuated through mechanical linkage. The bowden cable transmits the mechanical action from the handle-area release element to the valve, utilizing the existing pneumatic system's valve design to achieve remote actuation without overly complicating the mechanical structure.
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 single-handed operation of adjusting the monitor's height by integrating the release element into the handle, allowing the pneumatic spring's self-locking to be abolished via a bowden cable or other transmission means, facilitating easier and more convenient height adjustments.
Implementation Method 1
an opposing force means in the form of a pneumatic spring is provided, which ensures that the height of the object being carried can be set in a predetermined position
Implementation Method 2
The transmission means may advantageously be a bowden cable. A rocker arm, which is actuated by the bowden cable, may be provided for releasing the valve in the area of the valve.
Data Source
AI summary
A height-adjustable carrying device with a parallelogram cranking mechanism has a self-locking pneumatic spring (6), with a valve for abolishing the blocking function. A release element (22), with which the valve (24) is actuated, is arranged according to the present invention at a handle (20) for swiveling the carrying device in one assembly unit.