US20070057431A1 - Roller with surface friction - Google Patents

Roller with surface friction Download PDF

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Publication number
US20070057431A1
US20070057431A1 US11/222,811 US22281105A US2007057431A1 US 20070057431 A1 US20070057431 A1 US 20070057431A1 US 22281105 A US22281105 A US 22281105A US 2007057431 A1 US2007057431 A1 US 2007057431A1
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US
United States
Prior art keywords
roller
layer
finished
coarsened
outer circumferential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/222,811
Inventor
Lei-Hsiang Lin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmo Enterprise Co Ltd
Original Assignee
Yanmo Enterprise Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmo Enterprise Co Ltd filed Critical Yanmo Enterprise Co Ltd
Priority to US11/222,811 priority Critical patent/US20070057431A1/en
Assigned to YANMO ENTERPRISE CO., LTD. reassignment YANMO ENTERPRISE CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LIN, LEI-HSIANG
Publication of US20070057431A1 publication Critical patent/US20070057431A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H27/00—Special constructions, e.g. surface features, of feed or guide rollers for webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/11—Details of cross-section or profile
    • B65H2404/114—Built-up elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/185—Rollers composed of several layers easy deformable

Definitions

  • the present invention relates to a roller with surface friction, and more particularly to a roller having a coarsened layer and a finished layer formed on an outer circumferential surface thereof, and a plurality of micro sharp points formed on the finished layer to produce high surface friction on the roller.
  • a roller is an important element frequently used in different machines to push feed sheet material.
  • a roller is frequently used in a printer, a photocopier, and many other office machines to roll on a top of a stack of sheet paper, so as to push and feed the sheet paper at the highest position of the stack.
  • Another conventional solution is to put a soft rubber sleeve over the circumferential surface of the roller, in order to increase the frictional force of the roller.
  • the putting of the rubber sleeve over the roller increases not only the manufacturing cost but also the manufacturing process of the roller.
  • the rubber sleeve has low thermal plasticity and durability, and tends to become worn out or hardened after being used over a prolonged time, preventing the roller from stably push feeding the sheet material.
  • a primary object of the present invention is to provide a roller with surface friction, so that the roller is suitable for push feeding sheet material.
  • the roller with surface friction according to the present invention includes a coarsened layer and a finished layer formed on an outer circumferential surface of the roller from inner to outer side.
  • the coarsened layer is formed by way of subjecting the roller to coarsening
  • the finished layer is formed by way of subjecting the roller to a predetermined surface finishing.
  • a plurality of micro sharp points are formed on the finished layer to give the roller with high surface friction, so that the roller is suitable for push feeding sheet material.
  • FIG. 1 is a fragmentary perspective view of a partially processed roller of the present invention having a coarsened layer formed thereon;
  • FIG. 2 is a fragmentary perspective view showing the roller of FIG. 1 has been further formed on the coarsened layer with a finished layer;
  • FIG. 3 is a fragmentary perspective view of a fully processed roller of the present invention having a plurality of micro sharp points formed on the finished layer thereof.
  • the roller 10 includes a coarsened layer 11 and a finished layer 12 sequentially formed on an outer circumferential surface of the roller 10 from inner to outer side.
  • the coarsened layer 11 is formed by way of subjecting the outer circumferential surface of the roller 10 to coarsening.
  • the finished layer 12 is formed on the coarsened layer 11 by way of subjecting the coarsened layer 11 of the roller 10 to a predetermined surface finishing, such as metal plating, metal spraying, etc., so as to form a metal layer on the coarsened layer 11 .
  • an outer circumferential surface of the finished layer 12 is provided with a plurality of micro sharp points 13 to give the roller 10 a high surface friction, enabling the roller 10 to effectively push feed sheet material, such as sheets of paper.
  • the micro sharp points 13 are formed on the finished layer 12 by way of etching, engraving, pressing or scooping, and have a size about 40 ⁇ to 100 ⁇ each.
  • the micro sharp points 13 so formed produce a gripping force to grip a sheet material without the risk of piercing through the sheet material, and therefore enable the roller 10 to serve as a roller suitable for push feeding sheet material.

Landscapes

  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

A roller is formed on an outer circumferential surface from inner to outer side with a coarsened layer and a finished layer. The coarsened layer is formed by way of subjecting the roller to coarsening, and the finished layer is formed by way of subjecting the roller to a predetermined surface finishing. A plurality of micro sharp points are formed on the finished layer to give the roller with high surface friction, so that the roller is suitable for push feeding sheet material.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a roller with surface friction, and more particularly to a roller having a coarsened layer and a finished layer formed on an outer circumferential surface thereof, and a plurality of micro sharp points formed on the finished layer to produce high surface friction on the roller.
    • BACKGROUND OF THE INVENTION
  • A roller is an important element frequently used in different machines to push feed sheet material. For example, a roller is frequently used in a printer, a photocopier, and many other office machines to roll on a top of a stack of sheet paper, so as to push and feed the sheet paper at the highest position of the stack.
  • Most of the conventional rollers are produced to have a smooth outer circumferential surface that provides insufficient frictional force in push feeding the sheet material and results in idling of the roller. One of the conventional ways to solve this problem is to form patterns on the roller by engraving the outer circumferential surface of the roller. This solution is highly labor and time consuming, particularly for a metal roller.
  • Another conventional solution is to put a soft rubber sleeve over the circumferential surface of the roller, in order to increase the frictional force of the roller. However, the putting of the rubber sleeve over the roller increases not only the manufacturing cost but also the manufacturing process of the roller. Moreover, the rubber sleeve has low thermal plasticity and durability, and tends to become worn out or hardened after being used over a prolonged time, preventing the roller from stably push feeding the sheet material.
  • It is therefore tried by the inventor to develop a roller with surface friction to eliminate the drawbacks existed in the conventional rollers.
    • SUMMARY OF THE INVENTION
  • A primary object of the present invention is to provide a roller with surface friction, so that the roller is suitable for push feeding sheet material.
  • To achieve the above and other objects, the roller with surface friction according to the present invention includes a coarsened layer and a finished layer formed on an outer circumferential surface of the roller from inner to outer side. The coarsened layer is formed by way of subjecting the roller to coarsening, and the finished layer is formed by way of subjecting the roller to a predetermined surface finishing. And, a plurality of micro sharp points are formed on the finished layer to give the roller with high surface friction, so that the roller is suitable for push feeding sheet material.
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The structure and the technical means adopted by the present invention to achieve the above and other objects can be best understood by referring to the following detailed description of the preferred embodiments and the accompanying drawings, wherein
  • FIG. 1 is a fragmentary perspective view of a partially processed roller of the present invention having a coarsened layer formed thereon;
  • FIG. 2 is a fragmentary perspective view showing the roller of FIG. 1 has been further formed on the coarsened layer with a finished layer; and
  • FIG. 3 is a fragmentary perspective view of a fully processed roller of the present invention having a plurality of micro sharp points formed on the finished layer thereof.
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Please refer to FIGS. 1 to 3, in which a roller 10 according to the present invention is shown. As shown, the roller 10 includes a coarsened layer 11 and a finished layer 12 sequentially formed on an outer circumferential surface of the roller 10 from inner to outer side. The coarsened layer 11 is formed by way of subjecting the outer circumferential surface of the roller 10 to coarsening. The finished layer 12 is formed on the coarsened layer 11 by way of subjecting the coarsened layer 11 of the roller 10 to a predetermined surface finishing, such as metal plating, metal spraying, etc., so as to form a metal layer on the coarsened layer 11. As can be clearly seen from FIG. 3, an outer circumferential surface of the finished layer 12 is provided with a plurality of micro sharp points 13 to give the roller 10 a high surface friction, enabling the roller 10 to effectively push feed sheet material, such as sheets of paper.
  • The micro sharp points 13 are formed on the finished layer 12 by way of etching, engraving, pressing or scooping, and have a size about 40μ to 100μ each. The micro sharp points 13 so formed produce a gripping force to grip a sheet material without the risk of piercing through the sheet material, and therefore enable the roller 10 to serve as a roller suitable for push feeding sheet material.
  • The present invention has been described with a preferred embodiment thereof and it is understood that many changes and modifications in the described embodiment can be carried out without departing from the scope and the spirit of the invention that is intended to be limited only by the appended claims.

Claims (3)

1. A roller with surface friction, comprising a roller having a coarsened layer and a finished layer formed on an outer circumferential surface of said roller from inner to outer side, and a plurality of micro sharp points formed on said finished layer;
said coarsened layer being formed on the outer circumferential surface of said roller by subjecting the outer circumferential surface to coarsening;
said finished layer being formed on an outer circumferential surface of said coarsened layer by subjecting said coarsened layer to a predetermined surface finishing; and
said a plurality of micro sharp points formed on said finished layer providing said roller with high surface friction and thereby enabling said roller to effectively push feed sheet material.
2. The roller with surface friction as claimed in claim 1, wherein said finished layer comprises a metal layer formed by metal plating.
3. The roller with surface friction as claimed in claim 1, wherein said micro sharp points are formed on said finished layer by a method selected from the group consisting of etching, engraving, pressing, and scooping.
US11/222,811 2005-09-12 2005-09-12 Roller with surface friction Abandoned US20070057431A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/222,811 US20070057431A1 (en) 2005-09-12 2005-09-12 Roller with surface friction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/222,811 US20070057431A1 (en) 2005-09-12 2005-09-12 Roller with surface friction

Publications (1)

Publication Number Publication Date
US20070057431A1 true US20070057431A1 (en) 2007-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
US11/222,811 Abandoned US20070057431A1 (en) 2005-09-12 2005-09-12 Roller with surface friction

Country Status (1)

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US (1) US20070057431A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107954246A (en) * 2017-11-29 2018-04-24 浙江码尚科技有限公司 A kind of anti-skidding auxiliary device of silicone oil paper

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4960050A (en) * 1989-07-07 1990-10-02 Union Carbide Coatings Service Technology Corp. Liquid transfer article having a vapor deposited protective parylene film

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4960050A (en) * 1989-07-07 1990-10-02 Union Carbide Coatings Service Technology Corp. Liquid transfer article having a vapor deposited protective parylene film

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107954246A (en) * 2017-11-29 2018-04-24 浙江码尚科技有限公司 A kind of anti-skidding auxiliary device of silicone oil paper

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Legal Events

Date Code Title Description
AS Assignment

Owner name: YANMO ENTERPRISE CO., LTD., TAIWAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, LEI-HSIANG;REEL/FRAME:016986/0265

Effective date: 20050404

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION