EP0301767B1 - Improved method and apparatus for dispensing web material from a roll - Google Patents

Improved method and apparatus for dispensing web material from a roll Download PDF

Info

Publication number
EP0301767B1
EP0301767B1 EP88306740A EP88306740A EP0301767B1 EP 0301767 B1 EP0301767 B1 EP 0301767B1 EP 88306740 A EP88306740 A EP 88306740A EP 88306740 A EP88306740 A EP 88306740A EP 0301767 B1 EP0301767 B1 EP 0301767B1
Authority
EP
European Patent Office
Prior art keywords
roll
web
nip
stand
region
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.)
Expired - Lifetime
Application number
EP88306740A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0301767A1 (en
Inventor
David John Crisp
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.)
Wellcome Foundation Ltd
Original Assignee
Wellcome Foundation 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 Wellcome Foundation Ltd filed Critical Wellcome Foundation Ltd
Priority to AT88306740T priority Critical patent/ATE63449T1/de
Publication of EP0301767A1 publication Critical patent/EP0301767A1/en
Application granted granted Critical
Publication of EP0301767B1 publication Critical patent/EP0301767B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • 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
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/34—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means
    • A47K10/36—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices
    • A47K10/3687—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means with mechanical dispensing, roll switching or cutting devices with one or more reserve rolls
    • 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
    • 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
    • A47K10/32—Dispensers for paper towels or toilet-paper
    • A47K10/46—Dispensers for paper towels or toilet-paper with means for storing soiled towels

Definitions

  • the present invention relates to a method of and apparatus for dispensing web material from a roll.
  • Cabinets which contain rolled-up web material are inspected periodically to check if the roll of web material has been used up and needs replacing. There is thus the possibility of a delay occurring between the exhaustion of the roll available for use and the next inspection. This has the disadvantage that a cabinet may be out of service for a period causing possible inconvenience to potential users of the web material.
  • the present invention seeks to overcome or reduce the above-noted disadvantage.
  • GB-A-774,970 proposes a dispensing device for roller towels in which a first unit with one towel is arranged above a second until with a stand-by towel, the stand-by towel being made available for use after the said one towel has been used up.
  • the attendant When inspecting the status of such a dispensing device, the attendant must either replace the towels in both units, which means that part of the discarded stand-by towel is never used, or else replace the towel in the first unit and recover the unused portion of the stand-by towel which is a time-consuming operation that means a smaller length of stand-by towel is available when the new towel in the first unit is also used up.
  • EPA-A-0172667 discloses a roller towel dispenser which comprises first and second means for mounting respective main and stand-by rolls of web material, first detecting means for detecting when the main roll is exhausted, and first control means responsive to said first detecting means for allowing dispensing of web material from the stand-by roll on the second mounting means, a second detecting means for detecting when the stand-by roll is exhausted, and second control means responsive to said second detecting means for allowing dispensing of web material from a new roll on the first mounting means.
  • the arrangement described in EP-A-0172667 has the advantage that it can provide a continuous supply of web material with the entire length of every roll of web material being used.
  • the dispenser described in EP-A-0172667 has the rolls disposed side-by-side thus doubling the width of the web dispenser. This can be an inconvenience
  • GB Patent 1590048 describes a roller towel dispenser comprising main and stand-by rolls of web material, the main roll being mounted above the stand-by roll and material from the main roll being drawn through an open nip comprising two rollers which contains the leading end of the stand-by roll.
  • One of the nip rollers is mounted on a spring-urged lever, the end of which is in contact with the web material leaving the main roll. Exhaustion of the material on the main roll causes the lever to pivot, thereby closing the nip and drawing the leading end of the stand-by roll through the nip together with the trailing end of the main roll.
  • This invention relates to a method of automatically securing the leading end of a web on a stand-by roll to the trailing end of a web on the main roll, the web from the stand-by roll following the same course taken by the web from the roll which has just become exhausted so that the two mountings are used alternately for the main and stand-by rolls.
  • a method for dispensing web material first from a main roll and then from the stand-by roll comprises drawing the web from the main roll through a nip containing the leading end of web from the stand-by roll, and providing a region of the web of the main roll adjacent to the trailing end thereof with an enhanced coefficient of friction to the leading end of the web from the stand-by roll so that as the said region is drawn through the nip, the stand-by web is advanced with the main-roll web.
  • the region of enhanced coefficient of friction is provided at least in part by a layer of adhesive material.
  • Adhesive material can be applied on one face of the main-roll web and a layer of material to which the adhesive material will not adhere (herein referred to as a "release" material) can be applied on the opposite face of the main roll web such that in the main roll, the release layer confronts the layer of adhesive material preventing adhesion between adjacent turns of the main roll web close to the trailing end thereof.
  • a strip of double-sided self-adhesive plastics tape can be applied to the outer face of the main roll web over a short length thereof close to the trailing end and a length of plastics release tape coated with adhesive on just one side and somewhat longer than said short length can be stuck to the opposite face of the main roll web in the vicinity of the double-sided self-adhesive tape.
  • the web along, and in the immediate vicinity of, its trailing edge in both the main- and stand-by rolls can be coated with a narrow transverse strip of non-setting adhesive material and the core of the roll (around which the web is wound) can be treated with release material.
  • a region at the trailing end of the web in the main roll and a region at the leading end of the web in the stand-by roll are each coated with adhesive material (which can be dried or set) which sticks one region to the other but neither region to other areas of the webs.
  • adhesive material which can be dried or set
  • Such material can be applied on both sides of the web at each end in each roll whereby the leading end of the web in the stand-by roll waits in the nip (unmoved by the frictional drag with uncoated web material from the main roll) until a second strip of self-sealing adhesive material enters the nip with the trailing end of web in the main roll whereupon a self-sealing action occurs between the two strips of adhesive material, tagging the two webs together.
  • a friction-enhancing material e.g. an adhesive
  • a friction-enhancing material is microencapsulated in one or more regions adjacent to the trailing end of the web in each roll, whereby when a trailing end enters the nip the microcapsules break open to release an instant-acting friction-enhancing material which ensures advance of the two webs together through the nip.
  • the stand-by roll can be identical to the main roll so that it can, in turn, become the next main roll and in like manner will adhere to a new stand-by roll placed in juxtaposition therewith by an attendant when the core of the now-expended main roll is removed.
  • the nip can be provided between a freely-rotatable roller and a spring-urged roller, rod or arcuate bar, the pressure generated by the spring urging being insufficient to advance the leading end of the web from the stand-by roll through the nip until the frictionally enhanced region of the main roll web appears in the nip.
  • the method of the invention finds particular utility in paper roller towel dispensers where a freely hanging loop of web material downstream of the nip is disposed outside a cabinet housing the two rolls, the loop being available for use as a towel and used web material from the loop being automatically wound-up on a "waste" roll within the cabinet.
  • used web material is to be wound-up on a "waste” roll it is important that the trailing end of web from the main roll is adhered to the leading end of web from the stand-by roll strongly enough to allow the overlapped ends to remain adhered together as they are used as a towel so that, without rethreading by an attendant, the conjoined webs follow one another onto the waste roll.
  • the drive for the waste roll can be from a roller of the nip and preferably acts via the periphery of the growing waste roll to ensure a sensibly constant size for the available loop of material exposed outside the cabinet.
  • the invention comprises web dispensing apparatus having first and second rolls of web material, means to rotatably support the two rolls of web material so that web material can be drawn off each roll and nip means in which web material from the first roll and the leading end of web material from the second roll are pressed together, the pressure exerted by said nip means on the overlaid web materials being insufficient to advance web material from the second roll with web material from the first roll until a region of enhanced coefficient of friction on the web material from the first roll is drawn through the nip.
  • the trailing end 1 of a web 2 from a main roll passes through a nip 4 together with the leading end 5 of a web 6 from a stand-by roll 7.
  • the web 2 forms a user loop 8 which is exposed below a cabinet (not shown but housing the apparatus illustrated), the upper end of the loop 8 ending in a waste material roll 9.
  • the nip 4 is shown as being defined between a pair of rollers 10, 11 urged together by a pair of helical springs 12.
  • the roller 10 can, for example, be replaced by a stationary rod of circular cross-section or by a bar of arcuate shape presenting a concave region to the roller 11. It will be appreciated that by shaping the two components defining the nip 4, to increase the area of contact between the webs 2 and 6 the frictional drag exerted on the web 6 by drawing the web 2 through the nip can be controlled.
  • a suitable drive for the waste roll 9 which achieves this, can conveniently be obtained by using drive from a roller in the nip onto the periphery of the waste roll 9. For this reason it is generally convenient to use at least one roller in the nip 4, to increase the frictional drag between the web 2 and that one roller to a point where slip is unlikely to occur as web is drawn through the nip and to drive the waste roll 9 from the said one roller.
  • the invention concerns a method of ensuring that as the trailing end 1 of the web 2 passes through the nip 4 it will draw the web 6 through the nip with it.
  • the trailing end 1 is adhered to the web 6 close to the leading end 5 thereof so that the web 6 will enter the loop 8 and will eventually be wound up on the waste roll 9.
  • a strip of material having an exposed adhesive layer 13 is secured to the face of the web 2 which contacts the web 6. This can conveniently be a strip of double-sided self-adhesive tape.
  • the underside of the web 2, in the vicinity of the layer 13 is provided with a strip of "release" material (as hereinbefore described).
  • the area of the release strip is shown by chain lines 14 in the drawing.
  • the rolled up end of the web 6 on the stand-by roll will be similarly provided with an adhesive layer 13 and a release strip 14 so that when the stand-by roll becomes a new main roll, its web can become adhered to the leading end of the web from a new roll replacing the now-exhausted main roll 3.
  • the layer 13 is shown extending across the full width of the web 2 it is possible, for example, to use two narrow longitudinally extending strips of adhesive material parallel to the edges of the web 2. It is desirable to keep adhesive material away from at least the longitudinally outermost 2 cms. wide strips 13a, 13b of the web 2.
  • the release strip 14 can be dispensed with.
  • the layer 15 lies in the entrance to the nip 4 and although contacted by the web 2 as it is advanced through the nip the web 6 does not get drawn further into the nip 4 until contact between the layers 13 and 15 occurs.
  • non-woven webs e.g. of moisture-absorbent paper
  • the invention could be used with more durable webs e.g. a woven fabric) that are reused after laundering.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Replacement Of Web Rolls (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Traffic Control Systems (AREA)
  • Unwinding Webs (AREA)
EP88306740A 1987-07-24 1988-07-22 Improved method and apparatus for dispensing web material from a roll Expired - Lifetime EP0301767B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88306740T ATE63449T1 (de) 1987-07-24 1988-07-22 Verfahren und geraet zum spenden einer bahn von einer rolle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8717546 1987-07-24
GB878717546A GB8717546D0 (en) 1987-07-24 1987-07-24 Dispensing web material from roll

Publications (2)

Publication Number Publication Date
EP0301767A1 EP0301767A1 (en) 1989-02-01
EP0301767B1 true EP0301767B1 (en) 1991-05-15

Family

ID=10621230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88306740A Expired - Lifetime EP0301767B1 (en) 1987-07-24 1988-07-22 Improved method and apparatus for dispensing web material from a roll

Country Status (11)

Country Link
EP (1) EP0301767B1 (ko)
JP (1) JPH01113010A (ko)
KR (1) KR890001853A (ko)
AT (1) ATE63449T1 (ko)
AU (1) AU598391B2 (ko)
DE (1) DE3862824D1 (ko)
ES (1) ES2021836B3 (ko)
FI (1) FI883480A (ko)
GB (1) GB8717546D0 (ko)
PT (1) PT88072B (ko)
ZA (1) ZA885362B (ko)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB774970A (en) * 1955-10-07 1957-05-15 Chicago Towel Company Multiple towel dispensing device
GB1417972A (en) * 1971-12-06 1975-12-17 Hurst P Apparatus for splicing a moving web
CH615818A5 (ko) * 1977-04-19 1980-02-29 Apura Gmbh
US4552315A (en) * 1983-01-13 1985-11-12 Maurice Granger Rolled web dispenser
GB8418832D0 (en) * 1984-07-24 1984-08-30 Dudley Ind Ltd Washroom devices

Also Published As

Publication number Publication date
ES2021836B3 (es) 1991-11-16
PT88072B (pt) 1993-09-30
FI883480A0 (fi) 1988-07-22
ATE63449T1 (de) 1991-06-15
AU598391B2 (en) 1990-06-21
PT88072A (pt) 1989-06-30
FI883480A (fi) 1989-01-25
DE3862824D1 (de) 1991-06-20
ZA885362B (en) 1990-03-28
EP0301767A1 (en) 1989-02-01
KR890001853A (ko) 1989-04-06
JPH01113010A (ja) 1989-05-01
AU1972788A (en) 1989-01-27
GB8717546D0 (en) 1987-09-03

Similar Documents

Publication Publication Date Title
CA1288395C (en) Dispenser for multiple rolls of sheet material
US6412678B2 (en) Sheet material dispensing apparatus and method
CA1104528A (en) Depleted roll unlatching of reserve roll for dispensing flexible sheet material
CA2090776C (en) Dispenser for multiple rolls of sheet material
AU702809B2 (en) Folded/unfolded paper towel dispensing apparatus
JP3406426B2 (ja) 粘着テープ供給装置
CA1176609A (en) Sheet material dispenser apparatus
US6171439B1 (en) Manual stamp dispenser
IE780762L (en) Sheet dispenser
US20040251375A1 (en) Sheet material dispenser with perforation sensor and method
CA1236433A (en) Roller towel apparatus
US4432261A (en) Severing web plies in multiple roll material dispensers
CA1251271A (en) Towel cabinet replenishment indication and identification system
US6161795A (en) Surface unwind jumbo roll tissue dispenser
ATE146057T1 (de) Antidiebstahl spendevorrichtung für aufgerolltes, flächiges material
EP0301767B1 (en) Improved method and apparatus for dispensing web material from a roll
US6302351B1 (en) Dispenser for multiple rolls of sheet material
GB2054521A (en) Multiple wound roll dispenser and cutter mechanism for use therein
ATE48117T1 (de) Abwickelvorrichtung fuer rollen.
US4997239A (en) Web-dispensing apparatus
US4634033A (en) Paper towel dispenser
JP3081592B2 (ja) 巻おしぼり製造装置
CA1127603A (en) One way mountable key driven web roll
ES536742A0 (es) Un aparato para distribuir progresivamente un trozo de hoja de material para toallas
US3446447A (en) Film release and braking roller

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19880730

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19900420

RAP3 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THE WELLCOME FOUNDATION LIMITED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed
AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 63449

Country of ref document: AT

Date of ref document: 19910615

Kind code of ref document: T

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910530

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910612

Year of fee payment: 4

REF Corresponds to:

Ref document number: 3862824

Country of ref document: DE

Date of ref document: 19910620

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910715

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910717

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19910730

Year of fee payment: 4

Ref country code: DE

Payment date: 19910730

Year of fee payment: 4

Ref country code: AT

Payment date: 19910730

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910731

Year of fee payment: 4

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19910814

Year of fee payment: 4

EPTA Lu: last paid annual fee
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920722

Ref country code: GB

Effective date: 19920722

Ref country code: AT

Effective date: 19920722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920723

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19920723

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920731

Ref country code: CH

Effective date: 19920731

Ref country code: BE

Effective date: 19920731

BERE Be: lapsed

Owner name: THE WELLCOME FOUNDATION LTD

Effective date: 19920731

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19930201

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920722

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 88306740.7

Effective date: 19930204

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19930811

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050722