Furniture Pivot Arm Axial Positioning Mechanism
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Solution Overview
Problem
Existing furniture movement devices experience unwanted noises and sluggishness due to slight axial misalignment of pivot arms relative to the pivot axis, often caused by deviations from ideal positions and component tolerances.
Innovation Solution
Incorporation of positioning means with contact surfaces on both the pivot arm and base unit, allowing for fine axial positioning of the pivot arm to compensate for misalignment, thereby minimizing friction and noise during movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional pivot arm assemblies are used without positioning means, then the device structure remains simple, but unwanted noises and stiffness occur during pivot arm movement due to axial misalignment
Solution Approach 1:
Positioning means with contact surfaces are introduced as intermediary elements between the pivot arm and base unit. These positioning means mediate the interaction by providing fine axial positioning, compensating for misalignment without requiring complex adjustment mechanisms, thus improving reliability while maintaining relatively simple device structure.
2Object-affected harmful factors
If positioning means with contact surfaces are added to compensate for misalignment, then friction and noise are reduced, but the device complexity increases
Solution Approach 1:
Instead of redesigning the entire pivot mechanism, positioning means are added only at the specific local interface where the pivot arm contacts the base unit. This localized approach addresses the noise and friction problem at the critical contact point without unnecessarily complicating the overall device structure.
3Ease of manufacture
If component tolerances and position deviations are not compensated, then manufacturing remains easy, but axial misalignment causes sluggish and noisy movement
Solution Approach 1:
The positioning means are designed to automatically compensate for axial misalignment through self-adjusting contact surfaces. During assembly, the positioning means self-align the pivot arm axially without requiring precision adjustment or complex manufacturing tolerances, allowing the device to accommodate normal manufacturing variations while maintaining smooth operation.
Data Source
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AI summary
A device (9) for moving a furniture part (3) mounted on a furniture body (2) of a piece of furniture (1) is proposed, wherein guide means of the device (9) are provided, with at least one pivot arm for pivoting the furniture part (3) from a closed position to an open position relative to the furniture body (2) and back with a base unit with a base plate.According to the invention, the device (9) comprises positioning means with a positioning section, wherein the positioning section is formed in an intermediate area between the at least one pivoting arm and the base unit, wherein the positioning section is provided such that, during a pivoting movement of the at least one pivoting arm, the positioning section comes into contact with a contact surface, wherein the contact surface is provided on the pivoting arm and/or the base unit, wherein, through the contact of the positioning section with the contact surface, a fine positioning of the pivoting arm in the direction axial to the pivoting axis of the pivoting arm can be set up if the pivoting arm has an axial offset to a target bearing position of the pivoting arm.