Transmission Device for Photosensitive Drum with Removable Intermediate Member

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Solution Overview

Problem

Conventional transmission devices for photosensitive drums lack flexibility in assembling the gear member and transmitter, making maintenance and replacement of components difficult.

Innovation Solution

A transmission device comprising a gear member, an intermediate member with a guiding groove, and a transmitter with a radially extending shaft, allowing for flexible assembly and easy detachment for maintenance or replacement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Stability of the object's composition

If the gear member and transmitter are fixed together in a conventional transmission device, then the structural stability is improved, but the ease of repair and maintenance deteriorates

Engineering Contradiction:

Improvestructural stabilityVSAvoidease of maintenance

Core Design Contradiction:

Stability of the object's compositionVSEase of repair

Solution Approach 1:

The transmission device is divided into separable components: the gear member, the intermediate member, and the transmitter. The intermediate member acts as a detachable connector that can be removed from the gear member, allowing the transmitter to be accessed and maintained independently while maintaining structural stability during operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The connection between the gear member and transmitter is made dynamic rather than fixed. The intermediate member can be attached and detached as needed, transforming the static fixed connection into a dynamic removable connection that provides both stability during use and accessibility during maintenance.

Inventive Principle:

Principle #15Dynamics

2Reliability

If the transmission device components are fixed together, then the reliability is improved, but the ease of operation for assembly and disassembly deteriorates

Engineering Contradiction:

ImprovereliabilityVSAvoidease of assembly

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The device is segmented into modular components that can be independently assembled and disassembled. The intermediate member serves as a separate assembly element that connects the gear member and transmitter, allowing for simplified assembly operations without compromising the reliability of the overall transmission function.

Inventive Principle:

Principle #1Segmentation

3Stability of the object's composition

If the gear member and transmitter are fixed together, then the structural integrity is improved, but the adaptability for component replacement deteriorates

Engineering Contradiction:

Improvestructural integrityVSAvoidadaptability for replacement

Core Design Contradiction:

Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The connection system is made dynamic with the intermediate member that can be attached and detached. This allows the transmitter to be replaced or upgraded without affecting the gear member, providing adaptability for component replacement while maintaining structural integrity during normal operation.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS10534308B2Transmission device for a photosensitive drum

Publication Date: 2020.01.14 MITSUBISHI CHEM CORP

AI summary

A transmission device includes a gear member, an intermediate member removably attached to the gear member and including a guiding groove, and a transmitter including a shaft, the shaft having at least one protrusion extending radially outward from the shaft, and the guiding groove is shaped such that the protrusion is movable along the guiding groove in an axial direction and rotatable relative to the guiding groove.