Inclined Power Receiving Unit for Wear-Resistant Cartridge Drive

Solution Overview

Problem

The existing driving assemblies in processing cartridges for electronic imaging devices often experience structural wear and interference during engagement and disengagement due to height differences between the driving pin and engaging gear, leading to unstable power transmission and reduced service life.

Innovation Solution

A driving assembly with a power receiving unit that remains constantly inclined with respect to the rotation axis, allowing it to move between initial and displaced positions under external force, and returns to the initial position internally, reducing structural interference and wear through the use of a position-limiter and reset member.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the driving pin and engaging gear are positioned at different heights, then the engagement can be achieved, but structural interference and wear occur during engagement and disengagement

Engineering Contradiction:

Improveengagement stabilityVSAvoidstructural wear and interference

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The power receiving unit is designed to be movable relative to the power transfer unit, allowing dynamic adjustment of the engagement position. The unit can shift from a first position to a second position along the rotation axis direction, enabling the engaging gear to align with the driving pin at different stages of engagement, thereby reducing structural interference and wear while maintaining reliable power transmission.

Inventive Principle:

Principle #15Dynamics

2Object-affected harmful factors

If the engaging gear retreats along the rotation axis direction during engagement, then structural interference is avoided, but power transmission stability is reduced

Engineering Contradiction:

Improvestructural interferenceVSAvoidpower transmission stability

Core Design Contradiction:

Object-affected harmful factorsVSReliability

Solution Approach 1:

The power receiving unit is designed to be movable relative to the power transfer unit, allowing dynamic adjustment of the engagement position. The unit can shift from a first position to a second position along the rotation axis direction, enabling the engaging gear to align with the driving pin at different stages of engagement, thereby reducing structural interference and wear while maintaining reliable power transmission.

Inventive Principle:

Principle #15Dynamics

3Productivity

If the driving assembly is repeatedly engaged and disengaged, then the processing cartridge can be reused, but wear and breakage of the drive unit and power receiving unit increase

Engineering Contradiction:

Improvereusability of processing cartridgeVSAvoidstructural integrity of drive unit

Core Design Contradiction:

ProductivityVSStrength

Solution Approach 1:

The power receiving unit is designed to be movable relative to the power transfer unit, allowing dynamic adjustment of the engagement position. The unit can shift from a first position to a second position along the rotation axis direction, enabling the engaging gear to align with the driving pin at different stages of engagement, thereby reducing structural interference and wear while maintaining reliable power transmission.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The invention converts the potentially harmful repetitive engagement and disengagement actions into a beneficial process by designing the power receiving unit to dynamically adjust its position. This allows the system to accommodate the necessary movements while minimizing wear and structural damage, transforming a harmful repetitive stress into a controlled, manageable process that extends the service life of the components.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Data Source

PatentUS9846409B2Processing cartridge and driving assembly thereof

Publication Date: 2017.12.19 NINESTAR CORP

AI summary

A driving assembly is provided for a processing cartridge capable of being detachably installed in an electronic imaging device. The driving assembly includes a power receiving unit and a power transfer unit. The power receiving unit is configured for receiving a rotational driving force from a driving mechanism of the electronic imaging device; and the power transfer unit is coupled to the power receiving unit for receiving the rotational driving force from the power receiving unit. The power receiving unit remains constantly inclined with respect to a rotation axis of the power transfer unit, and has an initial position and a displaced position; the power receiving unit moves from the initial position to the displaced position when an external force is applied; and the receiving unit returns to the initial position from the displaced position when the external force is withdrawn.