Patent ID: 6666599
Filing Date: 2003-12-23
Classification: B41J,F16C

Abstract:
A carriage assembly of a printer having a carriage, a cartridge and a guiding rod, said cartridge having a print head, said cartridge and said carriage being movable along said guiding rod, said carriage comprising:a pair of bosses provided at respective sides of the carriage so as to be spaced a predetermined distance from each other, each boss being perforated by a boss hole, each boss hole having sidewalls having a shape of a portion of a sphere having a first radius; a pair of bushings, each of which is installed in a respective one of said boss holes of the bosses, each one of said pair of bushings having an outer surface that forms a portion of a sphere having a second radius different from said first radius, said sidewalls of each one of said boss holes being equidistant with said outer surface of said respective one of said pair of bushings, each bushing being perforated with a shaft through-hole through which said guiding rod can slidably pass; and supporting plates one for each bushing, each supporting plate having supporting portions for pressing said each bushing so as to prevent said each bushing installed in said respective one of said boss holes from being separated therefrom, said each supporting plate being fastened to a respective one of said bosses, said each bushing having an annular projection portion which projects between the supporting portions of said each supporting plate, said each bushing surrounding the guiding rod.