EP3403558A1 - Dispositif de sortie de sections de papier de longueur prédéfinie - Google Patents

Dispositif de sortie de sections de papier de longueur prédéfinie Download PDF

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Publication number
EP3403558A1
EP3403558A1 EP18170825.6A EP18170825A EP3403558A1 EP 3403558 A1 EP3403558 A1 EP 3403558A1 EP 18170825 A EP18170825 A EP 18170825A EP 3403558 A1 EP3403558 A1 EP 3403558A1
Authority
EP
European Patent Office
Prior art keywords
paper
pressure spring
knife
roll
paper roll
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Withdrawn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
EP18170825.6A
Other languages
German (de)
English (en)
Inventor
Eric Gottschalk
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.)
Ille Papier Service GmbH
Original Assignee
Ille Papier Service GmbH
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 Ille Papier Service GmbH filed Critical Ille Papier Service GmbH
Publication of EP3403558A1 publication Critical patent/EP3403558A1/fr
Withdrawn legal-status Critical Current

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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
    • A47K10/32—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
    • A47K10/3631—The cutting devices being driven manually
    • A47K10/3643—The cutting devices being driven manually by pulling the paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
    • B65H35/006—Article or web delivery apparatus incorporating cutting or line-perforating devices with means for delivering a predetermined length of tape
    • 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
    • A47K10/3656—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 paper jam preventing 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
    • A47K10/34—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
    • A47K2010/3675—Braking devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/50—Machine elements
    • B65H2402/54—Springs, e.g. helical or leaf springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/40—Toothed gearings

Definitions

  • the invention relates to a device for dispensing paper sections of predetermined length according to the preamble of claim 1.
  • a device for dispensing paper sections and a knife for such a device are known from DE 20 03 354 A known.
  • the known device comprises a perforation device for dividing the paper tape into individual sheets, which contains a rotatably mounted knife with perforation cutting edge and a synchronous to this rotating and a slot roller with a slot for receiving the knife.
  • the cutting edge of the knife is sawtooth-shaped.
  • the knife also has a plurality of grooves in which webs of an opposite engage when the knife rotatively moves in the immediate vicinity of and past the slit roll.
  • the blade rotatively moves past the slot roller so that the radially outer portion of the blade engages the slot and its cutting edge perforates the entire width of the paper web except for the portions of the paper web facing the grooves.
  • the unperforated portions of the paper tape have sufficient tensile force so that the user can pull out the paper tape from the dispenser by applying a light, steady pulling force.
  • the DE 28 14 792 A1 relates to a device for outputting paper sections of predetermined length and comprises an actuatable by pulling on a paper end submission for separating the paper sections of the wound on a paper roll paper web and ready to provide the following after release of the separated paper section subsequent paper tape.
  • the device consists of a at least the paper web width corresponding knife roller whose line of intersection at least partially forms a non-zero angle ⁇ with the generatrix of the knife roller.
  • the knife roller has a knife extending substantially over the entire width of the roll and protruding out of the roll shell.
  • the knife roller is associated with a pressure roller, which has a slot-shaped opening corresponding to the knife assembly.
  • the two rollers are coupled together by means of gears whose pitch circle diameter correspond to the roller diameters and which cause a synchronous movement of the rollers such that the paper web taut over the slot-shaped opening is pierced by the blade, the blade penetrating into the slot-shaped opening during this cutting operation ,
  • the knife has a saw blade-like cutting edge.
  • a cutting line of the knife with the generatrix of the knife roller forms an angle ⁇ corresponding to the constant pitch angle of the helix.
  • the EP 1 153 565 A1 relates to a mechanism for cutting and providing portions of a strip material, in particular paper towels, comprising at least one cylinder capable of rotating in a support structure about an axis and entraining an end portion of at least one sheet, one or more of which in the cylinder movable knife (s) is arranged to protrude from the cylinder for cutting the end portion of the paper web, the knives are connected to a shaft which can rotate about an axis, as parallel to the longitudinal axis of the cylinder.
  • the shaft has at least a first means which projects from one side of the cylinder and can rotate about an angular portion of a circumference.
  • the rotation is effected by at least a second means which shifts in the direction parallel to the longitudinal axis of the shaft of the movable knife and rotates about the axis, the rotational-translational movement of this second means being synchronized with the rotational movement of the cylinder.
  • the rotational movement of the cylinder is first effected by pulling on the paper web in the circumference of half a rotation, wherein subsequently the second half rotation is effected by a tension spring which is connected between a side wall and a gear connected to the axis of the cylinder.
  • a knife is used which has a sawtooth geometry.
  • the DE 36 90 545 T1 relates to a dispenser for rolls of flexible strip material with a feed roller and a cutting blade.
  • the cutting blade consists of a series of teeth spaced apart along the length of the blade. In the prior art there are four pairs of teeth along the length of the blade, these pairs of teeth being separated by cuts.
  • this form of cutting blade the cutting action performed on the web of flexible strip material as it passes over the feed roll causes a straight cut parallel to the axis of the feed roll but three small uncut portions in the web leaves that correspond to the width of the cutouts and the length of the fixed portions on the peripheral surface of the feed roller.
  • the US 2 601 956 A relates to a device for outputting paper sections of predetermined length with a device that can be actuated by pulling on a paper web end.
  • the device comprises a resting on a peripheral surface of the paper roll pressure element, which bears spring biased against peripheral surface. A free end of the pressure element is directed in the direction of movement of the paper roll.
  • the DE 40 04 124 A1 relates to a device for dispensing web sections from a dispensing roll.
  • the device comprises a spring-biased against a peripheral surface of the paper roll fitting pressure element.
  • a free end of the pressure element is oriented in the direction opposite to the direction of movement of the paper roll.
  • the problem is that when replacing a paper roll, the spring-biased pressure element must be actuated by a service person to remove a used paper roll and insert a new roll of paper in the device. There is a risk that the pressure element is not returned to its original position.
  • the present invention has the object, a device of the type mentioned in such a way that paper webs high strength and elasticity can be safely and smoothly cut and output.
  • a paper jam in the device should be prevented in a simple manner and the exchange of paper rolls to be facilitated.
  • the device has a pressure spring resting on a circumferential surface of the paper roll, wherein a free end of the pressure spring is aligned in a direction opposite to the direction of movement of the paper roll.
  • the pressure spring is rod-shaped and pivotally connected to a housing portion of the device. This ensures that the pressure spring can be pivoted from a vertical position of use in a horizontal service position to release the paper roll.
  • the pressure spring has a length such that the end of the pressure spring protrudes in the pivoted position over a housing edge of the device, so that closing the hood of the housing is prevented.
  • the housing can therefore only be closed when the pressure spring is in the position of use.
  • the end of the pressure spring is rounded.
  • the rounded end prevents closing of the housing cover in the horizontally pivoted state, since an edge of the side wall of the lid is guided along the pressure spring and stopped by the rounded end.
  • the pressure spring is formed from a flat spring steel.
  • Fig. 1 shows in front view a device 10, hereinafter called paper dispenser, for dispensing paper sections of predetermined length.
  • the device comprises a housing 12 with a rear wall 14 for attachment to a wall (not shown) and a hood 16. From the rear wall 14 extending holding elements 18, 20 for receiving a paper roll 22. From the paper roll 22 is a paper web 24 goes out, which is received in a device 26 for separating and outputting paper sections.
  • the device 26 comprises a right side wall 28 and a left side wall 30, which are connected to the rear wall 14. The front side, the side walls 28, 30 are connected to each other via a strut 32.
  • a pressure spring 34 which abuts a surface 36 of the paper web 24 and the paper roll 22 and prevents wrinkling of the paper web 24.
  • the pressure spring 34 is pivotally mounted about a hinge 38 and can be pivoted laterally to the right or left to replace the paper roll 22. In this case, the pressure spring has a length such that the pressure spring 34 prevents closure of the hood 16 in its laterally pivoted position.
  • Fig. 2 shows a sectional view of the paper dispenser 10 along the section line AA.
  • the device 26 comprises a knife roller 40 with a fixed knife 42 extending along the longitudinal axis of the knife roller and a pressure roller 44 with a longitudinally extending the pressure roller 44 extending slot-shaped opening 46 into which the knife 42 can engage with synchronous movement of the rollers 40, 44 ,
  • the rollers 40, 44 are each supported by shaft journals 48, 50 in the side walls 28, 30.
  • the shaft journals 48, 50 each have gearwheels 52, 54 and 56, 58 at their ends, via which the rollers 40, 44 are coupled.
  • deflection rollers 60, 62 are provided, which are each mounted on an axis 64, 66 which extend between the side walls 28, 30.
  • the paper web 24 is deflected by the deflection rollers 60, 62 and guided by peripheral guide elements 68, 70 along a peripheral portion 72 around the pressure roller 44.
  • An end 74 of the paper web 24 is guided through a removal opening 76 in the hood 16 and can be detected by a user.
  • a guide element 78 is provided in the region of the discharge opening 76, which extends along the pressure roller 44 between the side walls 28, 30.
  • the guide elements 68, 70 are connected in the region of the cutting roller 40 via guide webs 71 running in the circumferential direction and spaced apart from one another.
  • the guide webs 71 serve to guide the paper web 24 in the section of the guide elements 68, 70, in which the knife 42 engages in the opening 46 of the pressure roller 44.
  • Fig. 3 is a side view of the paper dispenser 10 and shows the shaft 52 connected to the gear 52 of the knife roller 40 and connected to the shaft pin 50 gear 56 of the pressure roller 44.
  • the gears 52, 56 form a transmission with the ratio of 1: 1 and cause a synchronous Movement of the rollers such that the tightly over the peripheral surface 72 of the platen roller 44 tensioned paper web 24 is cut during a pulling movement on the paper end 74 of the knife 42, wherein the blade 42 penetrates in this cutting operation in the slot-like opening 46.
  • the gear 52 is coupled via a tension spring 80 with the side wall 30 such that a pulling movement on the paper end 74 in the direction of the arrow 82 in FIG Fig. 2 due to a frictional engagement between the paper web 24 and the peripheral surface of the pressure roller 44 causes a rotational movement thereof in the direction of the arrow 84.
  • the gear 48 is moved in the direction of arrow 86, whereby the tension spring 80 is tensioned.
  • the tension spring has reached its maximum tension, so that when moving the paper end 74th an automatic onward transport is effected by contraction of the tension spring 80 to guide a new paper end out of the opening 76.
  • the Fig. 4 to 7 show individual positions of the knife roller 40 relative to the pressure roller 44 during a pulling movement on the paper end 74.
  • Fig. 4a) and 4b show the gears 48, 50 and the rollers 40, 44 in a neutral position in which the tension spring 80 is relaxed.
  • a line of action 88 of the tension spring 80 in this case runs essentially perpendicular to a line 90 connecting the shaft ends 48, 50.
  • the paper web 24 rests along the circumferential surface of the pressure roller 44 and is stretched in the region of the slot-shaped opening 46.
  • Fig. 5a) and 5b show the gears 48, 50 and the rollers 40, 44 in a knife entry position, z. B. after a rotation of about 25 °, the knife 42 enters the paper web and the slot-shaped opening 46 and the separation process begins. In this position, the knife 42 comes into contact with the paper web. By further pulling on the paper end 74, an at least section-wise separation (perforation) of the paper section takes place by penetration of the knife 42 into the slot-like opening 46.
  • the tension spring 80 By pulling on the paper end 74, the tension spring 80 is further tensioned until the rollers 40, 44 have made half a turn. After the line of action 88 of the tension spring 80 has crossed the center of the gear, an automatic further transport of the paper web 24 takes place together with the separated paper section by contraction of the tension spring 80. Subsequently, the paper section 74 can be separated from the paper web 24 along the perforated cut line.
  • Fig. 8 is a side view of the paper dispenser 10 from the right and shows the gears 54 and 58, which are engaged. With the gear 58 for the pressure roller 44, a handwheel 92 is coupled. The handwheel 92 allows the manual operation of the pressure roller 44 for threading the paper web 24 z. B. after a change of the paper roll 22nd
  • the gear 58 of the pressure roller 44 cooperates with a locking lever 94 which is articulated about a pin 96.
  • the locking lever causes a locking of the gear 58 in the direction of the arrow 94th
  • Fig. 9 shows a perspective view of the pressure roller 44 with shaft 50 and slot-shaped opening 46.
  • the slot-shaped opening 46 extends in the longitudinal direction of the pressure shaft 44 over its longitudinal extent.
  • the slot-shaped opening 46 has four sections 98, 100, 102, 104, which are separated by radially and circumferentially extending webs 106, 108, 110.
  • Fig. 10 shows a perspective view of the knife roller 40 with the fixed blade 42.
  • the knife 42 includes a knife edge 112 and a knife blade 114 which is received in the knife roller 40.
  • the knife roller 40 has two semi-circular cross-section elements 116, 118, between which the knife blade 114 is clamped.
  • the knife edge 112 has four sections 120, 122, 124, 126 in the form of teeth 120, 126 and / or groups of teeth 122, 124, which are separated from one another by recesses 128, 130, 132.
  • the individual sections 120, 122, 124, 126 of the knife edge 112 engage in the sections 98, 100, 102, 104 of the slot-shaped opening 46, wherein the webs 106, 108, 110 engage in the recesses 128, 130, 132.
  • circumferential grooves 136, 138, 140 are provided in a lateral surface 134 of the knife roller 40.
  • the encircling grooves 136, 138, 140 engage in the guide webs 71 of the peripheral guide elements 68, 70 running circumferentially transversely to the longitudinal axis of the knife roller 42, so that a section of the peripheral surface 134 of the knife roller 42 forms a guide surface together with an inner surface of the guide webs 71, whereby the guidance of the paper web is simplified, especially during threading.
  • Fig. 11a shows the knife 42 in a plan view, comprising the knife edge 112 and the knife blade 114.
  • the knife 42 is formed as a stamped part.
  • Fig. 11b shows a side view of the knife 42.
  • the outer portions 120, 126 have a triangular cutting edge, wherein cutting edge portions 142, 144 and 146, 148 are formed sloping towards side edges 150, 152 and the recesses 128, 132, respectively.
  • the embodiment of the invention is characterized in that the cutting edges of the central portions 122, 124 in the direction of the recesses 128, 130, 132 rising flanks 154, 156; 158, 160, thereby ensuring that as long as possible cutting edge portions 162, 164, 166, 168 are formed adjacent to the recesses 128, 130, 132, which interact with the webs 106, 108, 110 of the pressure roller to the paper web precisely cut to allow easy tearing off.
  • the embodiment of the invention allows the cutting or perforating of paper webs of different density and strength.
  • paper webs with a density of 2 ⁇ 25 g per mm 2 should be conveyed in the paper dispenser 10 according to the invention, ie paper webs which are usually used only in electrically operated paper dispensers.
  • mechanically operated paper dispensers are usually operated with thin paper webs with a density of 2 x 17 g per mm 2 , ie single-ply paper.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Replacement Of Web Rolls (AREA)
EP18170825.6A 2017-05-15 2018-05-04 Dispositif de sortie de sections de papier de longueur prédéfinie Withdrawn EP3403558A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017110518.2A DE102017110518B4 (de) 2017-05-15 2017-05-15 Vorrichtung zur Ausgabe von Papierabschnitten vorgegebener Länge

Publications (1)

Publication Number Publication Date
EP3403558A1 true EP3403558A1 (fr) 2018-11-21

Family

ID=62134076

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18170825.6A Withdrawn EP3403558A1 (fr) 2017-05-15 2018-05-04 Dispositif de sortie de sections de papier de longueur prédéfinie

Country Status (8)

Country Link
US (1) US20180325330A1 (fr)
EP (1) EP3403558A1 (fr)
JP (1) JP2019000625A (fr)
AU (1) AU2018203179A1 (fr)
CA (1) CA3004873A1 (fr)
DE (1) DE102017110518B4 (fr)
EA (1) EA201890958A3 (fr)
IL (1) IL259232A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10420444B2 (en) 2015-12-30 2019-09-24 Gpcp Ip Holdings Llc Hands-free flowable material dispensers and related methods
WO2017117012A1 (fr) * 2015-12-30 2017-07-06 Georgia-Pacific Consumer Products Lp Distributeurs de produit en feuilles mains libres et procédés associés
EP4192316A1 (fr) * 2020-08-05 2023-06-14 SCI-Services SA Dispositif de distribution de serviettes en papier
CN113477663A (zh) * 2021-06-30 2021-10-08 阜阳市尤美新材料科技有限公司 一种抗静电速干合成纸剪裁边料回收利用装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2364838A1 (fr) * 1976-09-15 1978-04-14 Granger Maurice Dispositif d'alimentation automatique en continu pour distributeurs de materiaux enroules
DE4004124A1 (de) * 1990-02-10 1991-08-14 Feldmuehle Gmbh Scott Vorrichtung zum ausgeben von bahnabschnitten von einer abgaberolle

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1084598A (en) * 1913-03-10 1914-01-20 John Antone Paper-towel cabinet.
US1526087A (en) * 1923-12-12 1925-02-10 Petersen Anker Tension device
US2601956A (en) * 1948-11-03 1952-07-01 American Linen Supply Co Towel dispensing apparatus
US2668022A (en) * 1951-05-24 1954-02-02 Fairfield Elmer Henry Sheet material dispenser
US3575328A (en) * 1969-01-24 1971-04-20 Georgia Pacific Corp Dispenser for flexible sheet material and a perforating mechanism adapted to be used therein
CH615817A5 (fr) 1977-04-19 1980-02-29 Apura Gmbh
US4712461A (en) 1985-10-18 1987-12-15 Georgia-Pacific Corporation Rolled material dispenser with feed roller containing a sliding cutter
US4691503A (en) * 1986-07-08 1987-09-08 Deere & Company Housing for holding a supply roll of large round bale wrap material
DK1153565T3 (da) 2000-05-08 2005-12-19 Qts Srl Mekanisme til papirservietdispensere
MX2017001811A (es) * 2014-08-08 2017-07-17 Georgia Pacific Consumer Products Lp Dispensadores de producto de hoja y metodos relacionados para reducir el uso del producto de hoja.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2364838A1 (fr) * 1976-09-15 1978-04-14 Granger Maurice Dispositif d'alimentation automatique en continu pour distributeurs de materiaux enroules
DE4004124A1 (de) * 1990-02-10 1991-08-14 Feldmuehle Gmbh Scott Vorrichtung zum ausgeben von bahnabschnitten von einer abgaberolle

Also Published As

Publication number Publication date
DE102017110518B4 (de) 2024-05-29
JP2019000625A (ja) 2019-01-10
EA201890958A2 (ru) 2018-11-30
EA201890958A3 (ru) 2019-01-31
CA3004873A1 (fr) 2018-11-15
AU2018203179A1 (en) 2018-11-29
US20180325330A1 (en) 2018-11-15
IL259232A (en) 2018-06-28
DE102017110518A1 (de) 2018-11-15

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Effective date: 20191023