Motor Mounting Frame with Exposed Fasteners for Easy Replacement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The complexity and time-consuming nature of motor replacement in recording apparatuses, such as printers, due to the need to dismount multiple components when replacing a motor, particularly when gears are press-fitted to rotating shafts, complicates the replacement process.
Innovation Solution
A recording apparatus design featuring a motor mounting frame with exposed fastening members and a slidable motor mounting frame that allows for easier access and detachment, including a lubricated pinion gear and encoder scale positioning for reduced friction and improved disassembly, facilitates motor replacement by allowing the motor to be mounted and dismounted efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor is mounted on a dedicated frame with components like gears and encoder scale around it, then the motor is securely fixed, but the replacement operation becomes highly complicated and time-consuming
Solution Approach 1:
The motor mounting structure is divided into a motor mounting frame that can be separated from the main body. The fastening members are designed to be accessible from the front, allowing the motor mounting frame to be detached without disassembling the entire apparatus. This segmentation enables quick removal of the motor while maintaining secure fixation during operation.
Solution Approach 2:
The fastening members are extracted to be accessible from the front of the apparatus, allowing operators to detach the motor mounting frame without disassembling surrounding components like gears and encoder scales. This extraction of the fastening function to an accessible location significantly reduces replacement time while maintaining reliable fixation when assembled.
2Reliability
If gears are press-fitted and fixed to rotating shafts, then the transmission is secure, but the gear and transport roller need to be dismounted in addition to the motor
Solution Approach 1:
The motor mounting frame is segmented as a separate removable unit that holds the motor and its associated transmission components. This allows the entire motor assembly to be removed as one unit without disassembling the press-fitted gears and shafts, maintaining transmission security while reducing disassembly complexity to just removing the fastening members.
3Shape
If the fastening member is hidden in the attached state, then the appearance is clean, but the motor replacement operation becomes complicated
Solution Approach 1:
The fastening members are designed with different visibility characteristics: when viewed from the front, at least a portion of the fastening members is exposed for easy access during maintenance, while when viewed from the rear, the fastening members are positioned to maintain a clean appearance. This local quality differentiation allows the same structure to serve both aesthetic and operational requirements.
Solution Approach 2:
The fastening members are positioned in a location that is accessible from the front dimension, allowing operators to reach them without disassembling the apparatus. This dimensional positioning of the fastening members enables easy motor replacement while maintaining a clean rear appearance, as the fastening mechanism operates from a different spatial dimension.
Data Source
AI summary
A recording apparatus including a motor mounting frame in which, in an attached state, a drive shaft of a motor is projected to a front side with respect to a frame surface on the front side, and in the attached state, while a frame surface on a rear side and the motor oppose each other, the motor is attached to the motor mounting frame. The recording apparatus includes a frame attaching portion to which the motor mounting frame is attached. In the attached state, at least a portion of a fastening member that fixes the frame attaching portion is exposed when viewing the frame surface on the front side from the front, and the fastening member is at an attachable/detachable position.