Spring-Biased Pull-Out Linkage for Smooth Bidirectional Assistance
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Solution Overview
Problem
Existing power-assisted retraction systems for sliding elements are mechanically complex, prone to malfunction, and only provide force in the direction of insertion, lacking support for both pushing in and pulling out, with power assistance occurring abruptly at a specific retracted position.
Innovation Solution
A pull-out system with a spring element that provides force assistance both when pushing into and pulling out by using a first and second pivot point connected via a spring element, where the spring force is directed to support the sliding element's movement, with optional damping to control the speed of the movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a locking element biased in a ready position is used for power-assisted retraction, then power assistance during insertion is achieved, but mechanical complexity increases and the system is prone to malfunction
Solution Approach 1:
The invention extracts the locking element from the system entirely, replacing it with a spring element that directly provides power assistance. This eliminates the complex engagement and disengagement mechanisms while maintaining the power assistance function during insertion.
Solution Approach 2:
The spring element serves multiple functions simultaneously: it provides power assistance during insertion, acts as a mechanical linkage, and eliminates the need for separate locking mechanisms. This multi-functionality reduces overall system complexity while maintaining effectiveness.
2Power
If a locking element engaged during insertion is used, then power assistance is provided, but the system becomes prone to damage and malfunction
Solution Approach 1:
By removing the locking element entirely and replacing it with a spring-based system, the invention eliminates the engagement and disengagement operations that cause wear, damage, and malfunction. The spring element provides continuous, smooth force without mechanical catching or locking.
Solution Approach 2:
The spring element provides gradual force application and cushioning throughout the insertion process, preventing sudden impacts and mechanical shocks that would damage locking mechanisms. This beforehand cushioning protects the system from damage while maintaining reliability.
3Force
If power assistance occurs over the final stretch only, then insertion force is reduced, but the force application becomes abrupt
Solution Approach 1:
The spring element is pre-loaded and positioned to begin providing force assistance earlier in the insertion process, not just on the final stretch. This preliminary action allows for gradual, controlled force application that is both effective and smooth, eliminating abrupt movements.
Solution Approach 2:
The spring element dynamically adjusts its force application throughout the insertion process, providing gradual and controlled assistance rather than abrupt force. This dynamic behavior ensures smooth operation while maintaining ease of use.
4Power
If known retraction systems are used, then power assistance during insertion is achieved, but support for pulling out is lacking
Solution Approach 1:
The spring element is designed to provide bidirectional force assistance, supporting both insertion and extraction operations. This universal functionality allows a single component to replace systems that previously required separate mechanisms for pushing in and pulling out, enhancing adaptability and versatility.
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 smooth and controlled power-assisted movement in both directions, reducing mechanical complexity and preventing abrupt force application, while maintaining the sliding element in a pretensioned state for both insertion and extension.
Implementation Method 1
a spring element (4) that imparts a force between the sliding element (1) and the body (2)
Data Source
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AI summary
The invention relates to a pull-out system for the power-assisted method of a push element (1), mounted linearly movably at a corpus (2) with a spring element (4) providing a force between the push element (1) and the corpus (2), characterized in that a first coupling point (5) is provided at the push element (1) and that the push element (1) is supported over the hinge point (5) at the corpus (2) in a hinge connection over the spring element (4) in a springy, prestressed manner.