Abstract:
A transport roller includes: a roller body of which a pair of end surfaces face each other by a press work so as to be in a cylindrical shape; and a high friction layer which contains inorganic particles and is provided on a surface of the roller body. Here, the roller body is provided with a joining portion which is formed by separating the pair of end surfaces. In addition, an average particle diameter of the inorganic particle is equal to or less than a distance between the pair of the end surfaces of the roller body on an outer peripheral surface side thereof.
Abstract:
A web processing roll for handling a web of material using vacuum is provided. The web processing roll includes a roll body. The roll body defines an outer periphery against which the web of material is held. The roll body defines a vacuum passage. At least one first vacuum hole fluidly connects to the vacuum passage provides vacuum proximate the outer periphery of the roll body to hold the web of material against the outer periphery with vacuum supplied to the at least one first vacuum hole by the vacuum passage. A first flow path of the vacuum hole extends at a first angle that is non-perpendicular to the rotational axis and is directed, at least in part, axially toward one of the first and second ends at the first outlet end of the at least one first vacuum hole.
Abstract:
A office machine including a data carrier transferring passage and a transmission assembly disposed in the data carrier transferring passage is provided. The transmission assembly includes a shaft disposed along a pivoting axial and a transferring roller pivoted with the shaft, wherein the transferring roller rotates along the pivoting axial. The transferring roller includes a body and multiple grooves. The body has a transferring surface and two supporting surfaces. The two supporting surfaces are connected with two sides of the transferring surface and pivoted with the shaft. The grooves are arranged on the transferring surface, wherein each groove has two end portions. At least one of the two end portions is not connected to the supporting surfaces.
Abstract:
A roller for industrial uses or printing uses essentially consists of non-metallic materials. The roller particularly comprises a roller core or a roller base of nonmetallic material. Besides, also bearing seats and bearings are preferably made of non-metallic material. The roller is applied in usual industrial and graphic applications. The roller can be used in a one-way procedure and be supplied to a chemical, mechanical or thermal recycling process directly after use.
Abstract:
A web processing roll for handling a web of material using vacuum is provided. The web processing roll includes a roll body. The roll body defines an outer periphery against which the web of material is held. The roll body defines a vacuum passage. At least one first vacuum hole fluidly connects to the vacuum passage provides vacuum proximate the outer periphery of the roll body to hold the web of material against the outer periphery with vacuum supplied to the at least one first vacuum hole by the vacuum passage. A first flow path of the vacuum hole extends at a first angle that is non-perpendicular to the rotational axis and is directed, at least in part, axially toward one of the first and second ends at the first outlet end of the at least one first vacuum hole.
Abstract:
Provided is a sheet transporting member including a shaft portion that includes a first shaft portion rotated by receiving a driving force on one end side and a second shaft portion of which one end is pivotably connected to the first shaft portion on the other end side of the first shaft portion, a covering member that is changed over between a first posture in which the covering member covers a connecting portion to which the second shaft portion is pivotably connected so as to allow the second shaft portion to stop pivoting, and a second posture in which the covering member does not cover the connecting portion, and a roller portion that is provided on the shaft portion and comes into contact with a sheet to transport the sheet.
Abstract:
A sheet feed rolling element for an electrophotographic device includes a roller portion and shoulders on both sides formed by curved chamfers. A parting line between the fixed mold plate and the movable mold plate of an injection mold is located at the boundary between one shoulder and the roller portion outer periphery, a step is provided at the boundary due to a difference between the opening diameter of the cavity portion defined by the fixed mold plate and the opening diameter of the cavity portion defined by the movable mold plate so the one shoulder has a smaller diameter than the outer peripheral surface, and a chamfer is provided adjacent to the one shoulder to absorb any difference in molding shrinkage rate due to a difference in molecular orientation of resin at the step, thereby preventing circumferential bulging on the outer periphery of the formed roller portion.
Abstract:
An improved contact nip roll, a method for assembling an improved contact nip roll, a system for nipping a web, and a method for nipping a web are provided. The improved contact nip roll integrates an inner softer core that can provide compliancy to web caliper variations, while rigid annular rings and a harder outer skin can maintain a uniform contact area.
Abstract:
A system for applying a web around a cylindrical object with even tension containing a core having a generally cylindrical shape and a pair of handles. The wall of the cylindrical object contains a plurality of ribs spaced around the circumference, where each rib connects the inner diameter and the outer diameter and extends from the first end to the second end defining honeycomb areas within the wall. Each handle has a insertion area, a collar area, a gripping area, and at least 2 locating pins. The collar area is sandwiched between the insertion area and the gripping area and the insertion diameter is less than the inner diameter of the core at the first end and second end. The location pins extend from the collar area and are located such that the pins fit into the honeycomb areas within the wall of the core.
Abstract:
A printing apparatus includes a printing portion for printing on a medium, a driving roller for transporting the medium, a first and a second driven roller which are respectively supported with a gap in one roller shaft in a shaft line direction of the roller shaft and rotate around the roller shaft while pressing the transported medium on the driving roller, and a shaft support member that has a shaft support portion which supports the roller shaft between the first driven roller and the second driven roller. The first and the second driven roller have a through hole into which the roller shaft is inserted and an inner diameter in a roller center portion is smaller than an inner diameter of a roller end portion in the shaft line direction. The roller shaft is supported so as to be swingable with the shaft support portion as a support point.