Adjustable Damping Hinge Mechanism for Furniture

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Solution Overview

Problem

Conventional damping devices for furniture parts require an extra operation to activate the damping function, which is inconvenient and lacks user control over the damping mechanism.

Innovation Solution

A damping device for a hinge assembly that includes a housing with a chamber, a spring for pivotal movement, a maintaining member with a damper and an adjustment member. The adjustment member can be moved to toggle the damping function on or off by contacting different portions on the maintaining member, allowing user control over the damping mechanism.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the damping function is activated by forcing the fluid chamber to move to the end having the piston, then the damping function can be achieved, but an extra operation action is required which reduces ease of operation

Engineering Contradiction:
Improvedamping functionVSAvoidoperation action
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The hinge assembly automatically activates the damping function when the arm closes relative to the housing, without requiring any additional operation from the user. The damper is designed to engage automatically through the relative motion between the arm and housing, eliminating the need for manual activation while ensuring reliable damping function.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The adjustment member is pre-positioned to allow automatic engagement of the damper during the closing motion. The protruded portion of the adjustment member is strategically located so that when the arm closes relative to the housing, the damper is pushed and the piston rod automatically contacts the adjustment member, preparing the damping mechanism in advance without requiring separate activation steps.

Inventive Principle:
Principle #10Preliminary action

2Stability of the object's composition

If the slider is positioned by contact between the locking element and locking member, then the slider can be held in position, but the slider cannot protrude automatically which reduces ease of operation

Engineering Contradiction:
Improveslider positionVSAvoidautomatic protrusion
Core Design Contradiction:
Stability of the object's compositionVSEase of operation

Solution Approach 1:

The hinge assembly automatically protrudes the damper during the closing motion without requiring manual intervention. The relative motion between the arm and housing self-activates the damping mechanism by pushing the damper and enabling the piston rod to contact the adjustment member, eliminating the need for separate protrusion actions while maintaining stable positioning through the locking mechanism.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If the adjustment member is moved to toggle the damping function on or off, then user control over the damping mechanism is achieved, but the device complexity increases

Engineering Contradiction:
Improveuser controlVSAvoidadjustment mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The adjustment member provides dynamic control of the damping function, allowing users to switch between enabled and disabled states. The movable adjustment member with its protruded portion creates an adjustable interaction point for the piston rod, enabling flexible control of the damping mechanism while integrating smoothly into the existing hinge structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The adjustment member serves multiple functions: it acts as a control element for enabling/disabling the damping function, a positioning element for the piston rod contact, and an integral part of the maintaining member assembly. This multi-functionality reduces the need for separate control mechanisms, thereby limiting the increase in device complexity despite adding user control capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 easy and convenient activation or deactivation of the damping function, allowing users to choose when to engage the damping mechanism, ensuring smooth and quiet operation of doors or cabinets.

Implementation Method 1

A spring is located in the chamber to provide to allow the pivotal movement between the housing and the arm

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

a damper is located in the path. The damper has a piston rod... so that the piston rod of the damper contacts the protruded portion of the adjustment member and retracts to perform damping function

Methodology Applied
Scientific EffectDamping: Damping

Data Source

PatentEP2746509B1Damping device for hinge assembly
Publication Date: 2016.10.19 KING SLIDE WORKS CO LTD
  • EP2746509B1 patent drawingFigure 1
  • EP2746509B1 patent drawingFigure 2
  • EP2746509B1 patent drawingFigure 3

AI summary

A hinge assembly includes a housing (10), an arm (12) and at least one spring (14). A damping device includes a damper (18), a maintaining member (16) and an adjustment member (20). The damper (18) is installed to the housing (10) and has a piston rod (76). The maintaining member (16) is secured in the chamber (36) of the housing (10) and has a path (72) in which the damper (18) is located. The adjustment member (20) is movably connected to the maintaining member (16) and has a protruded portion (92) located corresponding to the piston rod (76) of the damper (18). When the adjustment member (20) is moved to a first position relative to the maintaining member (16), the protruded portion (92) of the adjustment member (20) is located toward the piston rod (76) of the damper (18). When the housing (10) is closed relative to the arm (12), the damper (18) is pushed by the arm (12) so that the piston rod (76) contacts the protruded portion (92) and retracts to perform damping function. When the adjustment member (20) is moved to a second position relative to the maintaining member (16), the protruded portion (92) of the adjustment member (20) is moved away from the piston rod (76) of the damper (18). The piston rod (76) of the damper (18) cannot contact the protruded portion (92) of the adjustment member (20) and no damping function is available.