Printer Sensor Holding Portion for Tape Cassette Assembly
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Solution Overview
Problem
The existing printer designs face issues with mechanical sensor displacement during assembly, which can lead to damage or breakage of sensors and their components.
Innovation Solution
The printer incorporates a sensor holding portion with a main body, support portion, opening, and regulating members to securely mount and position mechanical sensors relative to the tape cassette, allowing for precise alignment and reduced risk of damage during assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical sensors are assembled to the side sensor main body portion without proper positioning structures, then the assembly process is simple, but displacement of the mechanical sensors occurs leading to damage or breakage
Solution Approach 1:
The support portion acts as an intermediary component between the main body portion and the mechanical sensor. It provides a stable mounting surface and positioning features that prevent sensor displacement during assembly, thereby improving assembly reliability without requiring complex external fixtures or procedures
Solution Approach 2:
The holding surface and positioning structures are pre-configured on the support portion before the mechanical sensor is installed. This preliminary preparation ensures that when the sensor is assembled, it is automatically positioned correctly, preventing displacement and damage without requiring complex real-time adjustment mechanisms
2Measurement precision
If the mechanical sensor is positioned close to the indicator portion for detection, then the detection precision is improved, but the risk of damage during assembly increases
Solution Approach 1:
The mechanical sensor is designed with a protective structure that allows it to be replaced if damaged during assembly. The sensor holding portion with its support and regulation mechanisms ensures that if the sensor does get damaged, the damage is isolated and does not affect other components, making replacement a cost-effective solution
Solution Approach 2:
The positioning structures and regulated movement mechanisms are designed in advance to prevent the mechanical sensor from being subjected to excessive force or displacement during assembly. This beforehand cushioning through proper mechanical design reduces the risk of damage before it can occur
Data Source
AI summary
A printer includes a cassette mounting portion, a feed portion, a print head, a mechanical sensor, and a sensor holding portion. The cassette mounting portion is configured such that a tape cassette can be removably mounted therein. The tape cassette includes a tape and an indicator portion indicating a type of the tape. The feed portion is configured to feed, along a specified feed path, the tape contained in the tape cassette mounted in the cassette mounting portion. The print head is configured to perform printing on the tape fed by the feed portion. The mechanical sensor is configured to detect the type of the tape indicated by the indicator portion. The mechanical sensor includes a plurality of switch terminals and a switch holding portion. The sensor holding portion is configured to hold the mechanical sensor and to be moved between a first position and a second position.