Paper feeding roller

A paper feeding roller (1) has an embossed surface (21) comprising raised portions (211) and sunken portions (212), wherein at least the bottom faces of the sunken portions (212) have holes (213) that are recessed toward the interior. The arithmetic mean height (Ra) of the embossed surface (21) can...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	KAWANO ATSUHIRO, DOI KUNIAKI, YOSHIDA YUMA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BEARINGS BLASTING CONVEYING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HEATING LIGHTING MECHANICAL ENGINEERING PACKING PERFORMING OPERATIONS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS STORING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A paper feeding roller (1) has an embossed surface (21) comprising raised portions (211) and sunken portions (212), wherein at least the bottom faces of the sunken portions (212) have holes (213) that are recessed toward the interior. The arithmetic mean height (Ra) of the embossed surface (21) can be 3-50 m, the diameter of the hole (213) can be 1-100 m, and the percentage of the area of the sunken portion (212) occupied by the area of the hole (213) can be in a range of 1-25%. The paper feeding roller (1) can be suitably used in an electrophotographic image forming device by being incorporated in a paper supplying device. 送纸辊(1)具有具备山状部(211)和谷状部(212)的褶皱表面(21)，在谷状部(212)的至少底面上，具有向内部凹陷的孔部(213)。褶皱表面(21)的算数平均高度Ra可以设置为3～50μm，孔部(213)的直径可以设置为1～100μm，相对于谷状部(212)的面积孔部(213)所占的面积比例可以设置为1～25％的范围内。送纸辊(1)可以装入在电子照相方式的图像形成装置的供纸装置中来适宜地使用。