Head Cleaning Mechanism for Information Recording Systems
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing information recording systems face limitations in head cleaning due to restricted cleaning stroke and range caused by the sliding contact between the cleaning pad and the head during rotational motion, which affects the effectiveness and compactness of the system.
Innovation Solution
An information recording system with a drive mechanism that moves the head between an in-use position and a cleaning position, where the cleaning device, positioned differently, rubs against the head in a direction independent of its movement, allowing for unrestricted cleaning range and stroke, and includes a separating mechanism to protect the recording tape and a retention unit to minimize dirt accumulation and facilitate cleaning member replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the cleaning pad makes sliding contact with the head during rotational motion, then the head can be cleaned, but the cleaning stroke is restricted and the cleaning range is limited
Solution Approach 1:
The patent transitions from rotational cleaning motion to linear reciprocating motion. The cleaning pad moves back and forth in a straight line along the head surface, eliminating the circular path constraints of rotational motion. This dimensional change allows for longer cleaning stroke and broader cleaning coverage without being limited by rotational radius.
Solution Approach 2:
The cleaning mechanism uses reciprocating linear motion with controlled speed and pressure. The cleaning pad accelerates and decelerates during its back-and-forth movement, optimizing contact time and cleaning pressure at different positions along the head surface, thereby improving overall cleaning effectiveness.
2Ease of operation
If the head is moved between in-use position and cleaning position, then the cleaning range is unrestricted, but the device complexity increases
Solution Approach 1:
The patent combines the head positioning and cleaning functions into a single integrated mechanism. The same drive system that positions the head for recording operations also facilitates its movement to the cleaning position, eliminating the need for separate cleaning mechanism components and reducing overall device complexity.
Solution Approach 2:
The drive mechanism serves multiple functions: it positions the head for recording operations and also moves the head to the cleaning position. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure while maintaining unrestricted cleaning range.
3Volume of moving object
If the cleaning device is disposed inside the case, then the system remains compact, but the cleaning operation must be independent of head movement
Solution Approach 1:
The cleaning operation is segmented into a distinct phase separate from head movement. The head is first positioned at the cleaning position, then the cleaning pad is activated to perform cleaning while the head remains stationary. This temporal and spatial segmentation allows the cleaning device to be compact while maintaining operational independence.
Solution Approach 2:
The head is moved to the cleaning position before the cleaning operation begins. This preliminary positioning ensures that when cleaning starts, the head is already in the correct location, allowing the cleaning pad to work independently without needing to coordinate with ongoing head movement, thus maintaining system compactness.
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 effective and independent head cleaning within the system, maintaining compactness and reducing the frequency of cleaning operations while ensuring the recording tape is protected and the cleaning member is easily replaceable.
Implementation Method 1
a cleaning device that is provided inside the case, and that cleans the head when positioned in the cleaning position by rubbing against the head in a direction different from a direction of movement of the head from the in-use position to the cleaning position
Data Source
AI summary
An information recording system includes a case, a head provided inside the case, a recording tape that travels inside the case due to rotation of a pair of reels that are provided inside the case, with at least one of information writing or information reading performed to or from the recording tape by the head while the recording tape is in contact with the head, a drive mechanism that drives the head between an in-use position contacting the recording tape and a cleaning position separated from the in-use position, and a cleaning device that is provided inside the case, and that cleans the head when positioned in the cleaning position by rubbing against the head in a direction different from a direction of movement of the head from the in-use position to the cleaning position.