EP0138595A2 - Roller - Google Patents

Roller Download PDF

Info

Publication number
EP0138595A2
EP0138595A2 EP84307001A EP84307001A EP0138595A2 EP 0138595 A2 EP0138595 A2 EP 0138595A2 EP 84307001 A EP84307001 A EP 84307001A EP 84307001 A EP84307001 A EP 84307001A EP 0138595 A2 EP0138595 A2 EP 0138595A2
Authority
EP
European Patent Office
Prior art keywords
roller
varnish
coating
grit
frictional
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.)
Withdrawn
Application number
EP84307001A
Other languages
German (de)
French (fr)
Other versions
EP0138595A3 (en
Inventor
Robert Michael George Fielding
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.)
Dudley Industries Ltd
Original Assignee
Dudley Industries 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 Dudley Industries Ltd filed Critical Dudley Industries Ltd
Publication of EP0138595A2 publication Critical patent/EP0138595A2/en
Publication of EP0138595A3 publication Critical patent/EP0138595A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/28—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven dispensing a clean part and taking-up a soiled part, e.g. using rolls; with dispensers for soap or other detergents; with disinfecting or heating devices

Definitions

  • the present invention relates to a roller and more particularly to a roller for a roller towel dispenser mechanism.
  • a towel is arranged to pass between two rollers and to be moved by means of a mechanism for rotating one or both of the rollers.
  • To provide a driving engagement between the towel and the surfaces of the rollers it is known to provide a frictional covering for the roller surfaces by bonding thereto a pre-cut, waterproof, paper-backed emery strip by means of a solvent-based or other adhesive. The strip is wound spirally onto the roller.
  • a disadvantage of the above arrangement is that the quality of and, in particular, the degree of friction provided by commercially-available emery strips is variable. Accordingly some emery strips do not provide a satisfactory grip on the towel. In addition a problem arises in applying waterproof, paper backed emery strips in that if these are not very well coated, the corners can start to lift, thereby necessitating rejection in the field.
  • the present invention seeks to overcome or reduce at least one of the above problems.
  • a method of providing a roller with a frictional coating characterised in that the roller is coated with an adhesive or varnish material and a coating of particulate material is then applied.
  • a further coating of an adhesive or varnish material is then applied, and the coating is cured.
  • Preferred materials are a two part epoxy varnish and a carborundum grit.
  • a roller having a frictional coating characterised in that the roller comprises a particulate material bonded to the surface of the roller by means of an adhesive or varnish material.
  • An advantage of a roller in accordance with the invention is that a firm frictional drive may be imparted to a web passing over the roller.
  • the frictional properties of the roller are more consistent than with existing rollers. Furthermore the problems of the coating lifting off from the roller are avoided.
  • the roller is preferably for use in a roller towel dispenser mechanism.
  • a carborundum grit is bonded directly to the surface of-a plastics or steel roller by the following method.
  • the above-described embodiment provides a roller with a coating which can firmly drive a towel engaging its surface.
  • the frictional properties of the coated roller are more consistent than with conventional frictional rollers.
  • the coating may be applied to the driving and/or take- up rollers of a towel dispenser mechanism, and can be applied to one or both rollers of each pair.
  • any suitable varnish or adhesive may be used and different materials may be used for the initial and final coatings.
  • any suitable grit or other particulate material may be used as well as or in addition to carborundum grit.
  • the preferred size used is 60 grit, but the range can be from 40 to 80.
  • the roller may be used to drive webs or sheets of other materials, including paper, in a wide range of applications.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Abstract

A roller for a roller towel dispenser mechanism has a frictional coating containing carborundum grit bonded to its surface by means of a two part epoxy varnish. A varnish coating is first sprayed on the roller which is then coated with the grit and a further coating of varnish, the whole arrangement then being cured.

Description

  • The present invention relates to a roller and more particularly to a roller for a roller towel dispenser mechanism. In such mechanisms a towel is arranged to pass between two rollers and to be moved by means of a mechanism for rotating one or both of the rollers. To provide a driving engagement between the towel and the surfaces of the rollers, it is known to provide a frictional covering for the roller surfaces by bonding thereto a pre-cut, waterproof, paper-backed emery strip by means of a solvent-based or other adhesive. The strip is wound spirally onto the roller.
  • A disadvantage of the above arrangement is that the quality of and, in particular, the degree of friction provided by commercially-available emery strips is variable. Accordingly some emery strips do not provide a satisfactory grip on the towel. In addition a problem arises in applying waterproof, paper backed emery strips in that if these are not very well coated, the corners can start to lift, thereby necessitating rejection in the field.
  • The present invention seeks to overcome or reduce at least one of the above problems.
  • According to a first aspect of the present invention there is provided a method of providing a roller with a frictional coating, characterised in that the roller is coated with an adhesive or varnish material and a coating of particulate material is then applied.
  • Preferably, a further coating of an adhesive or varnish material is then applied, and the coating is cured. Preferred materials are a two part epoxy varnish and a carborundum grit.
  • According to a second aspect of the present invention there is provided a roller having a frictional coating, characterised in that the roller comprises a particulate material bonded to the surface of the roller by means of an adhesive or varnish material.
  • An advantage of a roller in accordance with the invention is that a firm frictional drive may be imparted to a web passing over the roller. In addition the frictional properties of the roller are more consistent than with existing rollers. Furthermore the problems of the coating lifting off from the roller are avoided.
  • The roller is preferably for use in a roller towel dispenser mechanism.
  • A preferred embodiment of the present invention will now be described by way of example only.
  • In accordance with this embodiment a carborundum grit is bonded directly to the surface of-a plastics or steel roller by the following method.
    • 1. The roller is spray coated with a two part epoxy varnish of desired consistency.
    • 2. The roller is then coated with carborundum grit by passing through a fluidised bed, spraying the grit, rolling the roller into a tray of grit, or other means until the varnish coating is saturated with grit. The particle size of the grit is selected in accordance with the requirements of the particular application.
    • 3. A final sealing of varnish (two part epoxy) of thinner consistency than the first is sprayed over the carborundum coating.
    • 4. The epoxy varnish with grit sealed in is then either cured at room temperature for 24 hours or at 60°C for one hour, or at such temperature and for a particular length of time to ensure complete permanent (under normal atmospheric conditions) holding to the roller.
  • The above-described embodiment provides a roller with a coating which can firmly drive a towel engaging its surface. In addition the frictional properties of the coated roller are more consistent than with conventional frictional rollers.
  • The coating may be applied to the driving and/or take- up rollers of a towel dispenser mechanism, and can be applied to one or both rollers of each pair. Although the use of a two part epoxy has been disclosed, any suitable varnish or adhesive may be used and different materials may be used for the initial and final coatings. Moreover any suitable grit or other particulate material may be used as well as or in addition to carborundum grit. The preferred size used is 60 grit, but the range can be from 40 to 80. The roller may be used to drive webs or sheets of other materials, including paper, in a wide range of applications.

Claims (8)

1. A method of providing a roller with a frictional coating characterised in that the roller is coated with an adhesive or varnish material and a coating of particulate material is then applied.
2. A method according to claim 1, wherein the roller is then subjected to a further coating of adhesive or varnish material.
3. A method according to claim 1 or 2, wherein the coatings are then cured.
4. A method according to any preceding claim, wherein the varnish material comprises a two part epoxy varnish.
5. A method according to any preceding claim, wherein the particulate material comprises carborundum grit.
6. A method according to claim 5 wherein the grit size is in the range 40 to 80.
7. A roller having a frictional coating, characterised in that the roller comprises a particulate material bonded to the surface of the roller by means of an dhesive or varnish material.
8. A roller towel dispenser mechanism comprising a roller as claimed in claim 7.
EP84307001A 1983-10-18 1984-10-12 Roller Withdrawn EP0138595A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8327897 1983-10-18
GB08327897A GB2148452A (en) 1983-10-18 1983-10-18 Roller

Publications (2)

Publication Number Publication Date
EP0138595A2 true EP0138595A2 (en) 1985-04-24
EP0138595A3 EP0138595A3 (en) 1985-06-05

Family

ID=10550408

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84307001A Withdrawn EP0138595A3 (en) 1983-10-18 1984-10-12 Roller

Country Status (2)

Country Link
EP (1) EP0138595A3 (en)
GB (1) GB2148452A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100276087A1 (en) * 2007-10-16 2010-11-04 Cincinnati Machine, Llc Rotary clamp mechanism for a fiber placement head

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH389655A (en) * 1961-03-15 1965-03-31 Maschf Augsburg Nuernberg Ag Paper lead screw for printing machines
US3323848A (en) * 1965-05-03 1967-06-06 Steiner American Corp Towel dispensing apparatus
CH529301A (en) * 1971-03-16 1972-10-15 Heberlein & Co Ag Textile reel/roller - with plastic outer shell

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB815085A (en) * 1955-03-25 1959-06-17 Douglas Fraser & Sons Ltd Improvements in or relating to sliver roll or package driving rollers for machines for winding rolls or packages of sliver of bast or leaf fibres
US3676092A (en) * 1970-12-21 1972-07-11 Carborundum Co Oversized abrasive coated products
CA963668A (en) * 1971-04-05 1975-03-04 Stanley J. Supkis Coated abrasive material
DE2918103C2 (en) * 1979-05-04 1985-12-05 Sia Schweizer Schmirgel- & Schleifindustrie Ag, Frauenfeld Method for applying a base binder and apparatus for carrying out the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH389655A (en) * 1961-03-15 1965-03-31 Maschf Augsburg Nuernberg Ag Paper lead screw for printing machines
US3323848A (en) * 1965-05-03 1967-06-06 Steiner American Corp Towel dispensing apparatus
CH529301A (en) * 1971-03-16 1972-10-15 Heberlein & Co Ag Textile reel/roller - with plastic outer shell

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100276087A1 (en) * 2007-10-16 2010-11-04 Cincinnati Machine, Llc Rotary clamp mechanism for a fiber placement head

Also Published As

Publication number Publication date
GB2148452A (en) 1985-05-30
EP0138595A3 (en) 1985-06-05
GB8327897D0 (en) 1983-11-16

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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PUAL Search report despatched

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AK Designated contracting states

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STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19860216

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FIELDING, ROBERT MICHAEL GEORGE