Printer Panel Tilting Mechanism with Spring Bias and Damping

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Solution Overview

Problem

Conventional ink jet printers with tiltable operation panels face issues of jarring operation sounds and lack of automatic and manual tilt range flexibility, as they rely on motor-driven mechanisms which can generate noise and restrict operational freedom.

Innovation Solution

A recording apparatus with a rotating body that opens and closes using a biasing unit and a biasing release unit, allowing the rotating body to rotate between postures without motor-driven force, incorporating a gear system with clearance for independent rotation and a damper for noise reduction, ensuring operational freedom and suppressing jarring sounds.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Extent of automation

If a motor-driven mechanism is used to tilt the operation panel, then the panel can be tilted automatically, but jarring operation sounds are generated

Engineering Contradiction:
Improveautomatic panel tiltingVSAvoidjarring operation sound
Core Design Contradiction:
Extent of automationVSObject-generated harmful factors

Solution Approach 1:

The invention extracts the motor from the tilting mechanism, removing the source of jarring sounds while preserving the automatic tilting function through a spring-based biasing mechanism that naturally provides the tilting force without mechanical vibration

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The spring-based biasing unit provides self-service by automatically generating the tilting force through elastic deformation, eliminating the need for external motor-driven actuation and its associated noise, while the mechanism naturally returns to its initial position through the spring's restoring force

Inventive Principle:
Principle #25Self-service

2Extent of automation

If a motor-driven mechanism is used to tilt the operation panel, then the panel can be tilted to fixed positions, but the degree of freedom of operation is restricted

Engineering Contradiction:
Improvefixed tilt positionsVSAvoiddegree of freedom of operation
Core Design Contradiction:
Extent of automationVSAdaptability or versatility

Solution Approach 1:

The invention transforms the static, fixed-position tilting mechanism into a dynamic system where the operation panel can be tilted to any position within a continuous range. The spring-based biasing unit allows smooth, continuous adjustment rather than discrete fixed positions, providing adaptability and versatility in operation angles

Inventive Principle:
Principle #15Dynamics

3Object-generated harmful factors

If a spring-based biasing unit is used to open the rotating body, then jarring driving sounds are suppressed, but the rotating body cannot be freely operated in certain ranges

Engineering Contradiction:
Improvejarring driving soundVSAvoiddegree of freedom of operation
Core Design Contradiction:
Object-generated harmful factorsVSAdaptability or versatility

Solution Approach 1:

The invention segments the tilting mechanism into distinct functional zones: a biasing zone where the spring provides automatic tilting force, and a free operation zone where the panel can be manually adjusted without spring interference. This segmentation allows the system to enjoy both the noise suppression of spring-based actuation and the operational freedom of manual adjustment

Inventive Principle:
Principle #1Segmentation

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 suppresses jarring driving sounds and enhances operational flexibility by using a biasing unit and biasing release unit, allowing the rotating body to rotate freely between postures without motor-driven force, resulting in a quieter and more versatile operation.

Implementation Method 1

a biasing unit that biases the rotating body in an opening direction

Methodology Applied
Scientific EffectElastic force: Elasticity

Implementation Method 2

there is provided a damper that provides resistance to rotation of the rotating body when the rotating body has a posture between the first posture and the third posture

Methodology Applied
Scientific EffectVibration damping: Damping

Data Source

PatentUS9961220B2Recording apparatus and image reading apparatus
Publication Date: 2018.05.01 SEIKO EPSON CORP
  • US9961220B2 patent drawing
  • US9961220B2 patent drawing
  • US9961220B2 patent drawing

AI summary

A recording apparatus includes a rotating body that opens and closes an apparatus main body which is provided with a recording portion that performs recording on a medium and rotates between a first posture that is a closed posture and a second posture that is an open posture, a biasing unit that biases the rotating body in an opening direction, and a biasing release unit that releases an action of a biasing force applied by the biasing unit to the rotating body in a range from a third posture, which is a posture between the first posture and the second posture, to the second posture.