Carriage Device Sequential Height Adjustment Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing carriage devices for recording apparatuses face increased driving load during gap adjustment due to secular changes and adhesion issues, leading to potential malfunctions in the driving system.
Innovation Solution
A carriage device with separate first and second guide members and adjustment units that allow sequential height adjustments, distributing the driving load and maintaining the carriage horizontal by adjusting the gap between the head and the sheet through independent operations of the upstream and downstream adjustment members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If gap adjustment members are simultaneously slid to adjust head height, then the carriage maintains horizontal position, but the driving load increases due to secular changes and adhesion
Solution Approach 1:
The gap adjustment process is segmented into two independent operations: first adjustment unit slides the first gap adjustment member, then after a predetermined time interval, the second adjustment unit slides the second gap adjustment member. This segmentation reduces the simultaneous driving load while achieving the same total height adjustment, resolving the contradiction between maintaining horizontal position and reducing driving load.
Solution Approach 2:
The adjustment process uses periodic action by introducing a predetermined time interval between the operation of the first and second adjustment units. This periodic operation allows the driving system to recover between loads, reducing peak driving load while still achieving complete gap adjustment, thus resolving the contradiction between stability and force requirements.
2Ease of operation
If gap adjustment members slide smoothly, then head height can be adjusted easily, but secular changes and adhesion cause sliding difficulty and increased driving load
Solution Approach 1:
By segmenting the adjustment operation into two separate phases with a time interval, the system reduces the instantaneous load on each adjustment member, making the operation easier while preventing driving system overload and malfunction, thus improving both ease of operation and reliability.
Solution Approach 2:
The predetermined time interval between adjustments acts as a cushioning period, allowing the driving system to recover from the first adjustment before the second adjustment begins. This prevents overload conditions that would cause malfunctions, thereby maintaining reliability while preserving ease of operation.
3Productivity
If all gap adjustment members are adjusted simultaneously, then the adjustment process is faster, but the driving load may cause system malfunction
Solution Approach 1:
The adjustment process is divided into two sequential operations with a predetermined time interval, which reduces the peak driving load to prevent malfunctions. While slightly longer than simultaneous adjustment, it maintains acceptable productivity by efficiently sequencing the operations without unnecessary delays.
Solution Approach 2:
By using periodic action with a predetermined time interval between the first and second adjustments, the system maintains a steady rhythm that prevents overload while completing the adjustment task efficiently. This periodic operation ensures reliability is maintained while productivity remains high through optimized timing.
Data Source
AI summary
A carriage device includes a first guide member and a second guide member for supporting a carriage with a head mounted thereon at two separate positions and guiding reciprocation of the carriage, a first adjustment unit configured to adjust a height of the carriage relative to the first guide member through movement of the carriage, and a second adjustment unit configured to adjust a height of the carriage relative to the second guide member through the movement of the carriage. The carriage device can sequentially perform a first operation of changing the height of the carriage by the first adjustment unit and a second operation of changing the height of the carriage by the second adjustment unit.