Handle for an appliance or furniture with a handle bar and one or two rotational devices
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Solution Overview
Problem
Existing handles for appliances lack efficient mechanisms for damping rotational movements and automatic return to original positions, leading to unsatisfactory user experience and potential mechanical stress.
Innovation Solution
A handle design incorporating a rotatably supported shaft with a spring-loaded slide and guide slot, utilizing damping fluid channels to dampen and restore the handle bar to its original position, allowing for controlled rotational movement and automatic return.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotational device is added to enable automatic return, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent combines the damping function and the automatic return function into a single integrated rotational device. The shaft with guide slot and the slide with spring are merged into one compact assembly that performs both functions simultaneously, rather than using separate mechanisms for damping and return.
Solution Approach 2:
The guide slot acts as an intermediary element between the shaft and the slide. It translates the rotational movement of the shaft into linear movement of the slide, enabling the spring to generate rotational torque through linear expansion. This intermediary mechanism simplifies the overall design by creating a smooth mechanical coupling.
2Stability of the object's composition
If damping fluid channels are incorporated, then the stability of the rotational movement is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The damping system is designed to be self-regulating. The damping fluid automatically adjusts to the speed and direction of rotational movement without requiring external control mechanisms. The fluid channels are designed to allow the damping fluid to flow and create resistance based on the movement parameters themselves, making the system adaptive and reducing precision requirements for fixed tolerances.
3Ease of operation
If a spring-loaded slide mechanism is used, then the automatic return function is improved, but the device complexity increases
Solution Approach 1:
The spring-loaded slide mechanism transforms the static spring force into a dynamic automatic return function. The spring is pre-compressed and stores potential energy that is converted to kinetic energy during the return movement. The guide slot dynamically translates rotational motion into linear motion, creating a dynamic system that automatically returns to the original position without external intervention.
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 effectively damps rotational movements and ensures automatic return to the original position, enhancing user experience and mechanical stability by utilizing a spring-loaded mechanism with damping fluid to manage torque and movement.
Implementation Method 1
A shaft of the one or two rotational devices is rotatably supported in the housing. A slide is movably and non-rotatably supported in the housing, and the slide is loaded by a spring
Implementation Method 2
utilizing damping fluid channels to dampen and restore the handle bar to its original position
Data Source
AI summary
A handle for an appliance or furniture includes a movable handle bar and one or two rotational devices. The handle bar is attached to the housing or to one or more housings of the one or two rotational devices. A shaft of the one or two rotational devices is rotatably supported in the housing. A slide is movably and non-rotatably supported in the housing, and the slide is loaded by a spring and has a guide slot in which a guide pin of the shaft engages.