Carriage driver having a distortion prohibiting mechanism
US5797691A · kind A · utility
2Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 24, 1997 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Jun 24, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J19/20
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A carriage driver includes a cam shaft having a shaft, a cylinder provided around the shaft and made of material of which thermal expansion coefficient is different from that of the shaft, and a cam groove provided on the cylinder, a carriage motor which rotatively drives the cam shaft, a carriage having a print head and movably mounted on the cam shaft, and a prohibiting mechanism provided at boundaries between the shaft and the cylinder of the cam shaft and simultaneously at ends of printing area, in order to prohibit distortion of the cam shaft in an axial direction due to change in temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.