EP0195751B1 - Distributeur automatique de papier enroulé - Google Patents

Distributeur automatique de papier enroulé Download PDF

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Publication number
EP0195751B1
EP0195751B1 EP86830040A EP86830040A EP0195751B1 EP 0195751 B1 EP0195751 B1 EP 0195751B1 EP 86830040 A EP86830040 A EP 86830040A EP 86830040 A EP86830040 A EP 86830040A EP 0195751 B1 EP0195751 B1 EP 0195751B1
Authority
EP
European Patent Office
Prior art keywords
paper
dispenser
shaft
driving
motor
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
EP86830040A
Other languages
German (de)
English (en)
Other versions
EP0195751A2 (fr
EP0195751A3 (en
Inventor
Luigi Gabbrielli
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.)
AMCO SpA
Original Assignee
AMCO SpA
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 AMCO SpA filed Critical AMCO SpA
Priority to AT86830040T priority Critical patent/ATE50131T1/de
Publication of EP0195751A2 publication Critical patent/EP0195751A2/fr
Publication of EP0195751A3 publication Critical patent/EP0195751A3/en
Application granted granted Critical
Publication of EP0195751B1 publication Critical patent/EP0195751B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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; ACCESSORIES THEREFOR, e.g. TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers; Toilet paper dispensers
    • A47K10/28—Towel dispensers; Toilet paper dispensers 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

  • This invention relates to an automatic dispenser of a rolled paper, particularly for use as a towel, of the type in which a given amount of paper is dispensed when required by an user, the supplied paper being then caused to rewind up after a predetermined time.
  • They comprise a housing in which a roll of paper to be delivered is located; an edge part of the paper is passed through appropriate outlet and inlet openings and is rewound around an axis or re-winding drum.
  • two driving rollers are provided and are connected to the roll of paper to be supplied and the re-winding drum respectively; these latter run-off each a given amount of paper to form a paper loop beneath the dispenser; after a predetermined time is elapsed, the driving roller connected to the re-winding drum is rotated in an opposite sense, with respect to its preceding sense of rotation, thereby causing the supplied paper to re-wind up.
  • FR-A 1 378 458 discloses a rolled paper dispenser wherein means are provided for sensing the end of the paper band and means, spring operated, for completely rewinding the paper.
  • an automatic rolled paper dispenser of the closed-cycle type in which the paper, after it has run over a roller, through an outlet opening of the dispenser and through an inlet opening thereof, is rewound around a re-winding axis or drum to form a paper roll, comprising one single motor for actuating said dispenser and re-winding axis, means which cause the motor to start, to stop and to invert its motion, and means for signalling the exhaustion of the paper roll (6) and causing a fast rewinding of the paper.
  • Aim of this invention is that of providing a rolled paper dispenser simplified in construction and, as a result, of reduced cost.
  • the automatic rolled-paper dispenser of this invention is particularly characterized in that it utilizes a single rotary motor whose shaft extends perpendicularly out of a lateral wall of the housing and is integral with a pinion which meshes with a driven wheel that in turn meshes with an orthogonal gear pair to drive therethrough a shaft carrying two helical toothings or screws, one of these screws being keyed on said shaft and the other screw being secured in such a manner thereto as to be driven in rotation only when the shaft is rotated in one of the two possible senses of rotation thereof, said screws being in mesh with respective wheels that are keyed on driving rollers controlling the supply and the re-winding of the paper, means being provided to cause said single motor to start, to stop and to invert its motion. All these means are located outside the housing of the dispenser.
  • At least one of said two driving rollers is so designed as to enable an appropriate sensor cooperating therewith to impart the necessary contact adherence to the paper running over said roller as well as to signal exhaustion of the paper roll and to cause automatic complete re-winding of a free portion thereof.
  • an automatic rolled-paper dispenser according to the invention is shown to include an internal stationary framework having two sidewalls 1 and 2 and an outer housing 3, shown in figure 4.
  • a cradle-like housing 4 Secured to the dispenser framework is a cradle-like housing 4 designed to receive a roll 5 of a paper to be dispensed.
  • the cradle-like housing 4 is usually mounted in a pivotable manner in order to make for easy introduction of the paper roll 5.
  • a free end portion or edge of the paper roll 5 is made to pass over a driving roller 6, out of a front opening 7 in the bottom of the dispenser and then introduced again into the dispenser through a rear opening 8 to be wound around an axis or drum 9 into a re-winding paper roll 10 which is constantly kept in contact with a driving roller 11 (figure 4).
  • the re-winding drum 9 has its ends received in respective vertical open-top opening 12 formed in the sidewalls 1 and 2 of the dispenser frame.
  • a rotary electric motor 14 Provide inside the dispenser is a rotary electric motor 14 a pinion 15 (figure 1) of which extends out of the side-wall 1 of the dispenser frame.
  • the driving pinion 15 meshes with a driven wheel 16 that in turn is in mesh with an orthogonal pair 17, 18 to drive therethrough a shaft 19.
  • This shaft 19 is provided near its ends with respective helices or screws 20 and 21 meshing with associated gear wheels 22 and 23 carried on said driving rollers 11 and 6, respectively.
  • the screw 20 is keyed on shaft 19 so as to be rotated in any senses of rotation of the shaft 19, and thus, the drive pinion 15.
  • the screw 21 is by known means so secured to shaft 19 as to be rotated only in one sense of rotation of same shaft 19 and to be at rest when the shaft 19 rotates in the opposite sense.
  • the driving roller 6 extends out of the sidewall 2 of the dispenser framework and is there provided with a gear wheel 24 meshing with a gear whell 25 pivoted on the wall 2 and carrying at its rear side a cam 26 shown in dotted line in figure 2.
  • the cam means 26 is a circular disk having a recess 27 on the periphery thereof.
  • One end of a lever 28 making part of a pair of articulated levers is pressed against the profile of the cam 26, the other lever 29 of said pair, shown in dotted line in figure 2, being arranged inside the dispenser.
  • the lever 28 is secured to the dispenser wall 2 by means of a pivot pin 30 received in an elongated slot 31 of said lever 28. In this way, the lever 28 is able to move in a reciprocating manner, while the lever or blade 29 is able to swing about the pivot connection of the two levers.
  • a square member 32 an arm of which is constantly pressed against the driving roller 6 by a spring means 33.
  • the roller 6 is provided, in the portion thereof extending between the two walls 1 and 2, with regularly spaced apart cavities 36 or zones where the roller material has been removed to reduce the roller diameter, said cavities being designed to receive said arms 34 with interposition of the paper layer.
  • roller 6 is conveniently roughened to provide for better friction with respect to the paper run around it.
  • roller 11 is shown to have a configuration the same as that of roller 9, though in this case the cavities 36 could be omitted since, as distinct from the cavities 36 in roller 6, they no longer fulfil any function, as will be explained in the following.
  • the outer surface of roller 11 is also roughened in order to increase friction with the paper in contact therewith.
  • a stationary axis 37 shown schematically in figure 2 and is sectional view in figure 4, is arranged between the two walls 1 and 2 and has the function of increasing tension between the paper and the roller 6.
  • microswitches M1, M2, M3 that can be operated by a pawl 38 on cam 26, the blade-shaped lever 29 of the pair of articulated levers 28, 29 and the square member 32, respectively.
  • said microswitches are able to emit signals towards a centralized electronic station schematically shown at C, figure 4, for starting, stopping and/or inverting motion of the motor 14.
  • the device In operation, the device is supposed to start from a rest position with the lying-out portion of paper being in contact with the outer surface of the cradle-like housing 4, as shown in dotted line, figure 4.
  • both the driving rollers 6 and 11 will rotate in a clockwise direction so that the roller 6 will cause a portion of paper to be fed through the front opening 7 of the dispenser, while the roller 11 will cause a similar amount of paper to be fed through the rear opening 8 by partial un-winding of the re- winding paper roll 10. It is to be noted that during this paper supply stage, the driving roller 6 causes the cam 26 to perform one complete turn, the cam starting from, and stopping at, the same position it is shown to occupy in figure 4.
  • Paper supply is arrested upon the cam 26 completing one turn since at that instant the cam pawl 38 actuates the microswitch M1 which sends a signal to station C to stop the motor 14. It is to be observed that during this paper delivery, the supplied paper runs into a paper loop 13 underneath the dispenser, as shown in solid line, figure 4, and, at the same time, the pair of articulated levers 28, 29 are moved from the dotand-dash-line position to the solid line position where the end of lever 28 is engaged in the recess 27 of the disk or cam 26. For this position of the pair of articulated levers 28, 29, the blade-like lever 29 has performed a swinging movement about the pivot of the lever so that the end thereof is pressing the paper against a rear stationary abutment 39 of the dispenser, shown in fig. 4.
  • a timer means (not shown in the drawings) allows for the paper to remain in this loop-forming position a time sufficient for utilization thereof by an user, after which time the timer causes automatic re-winding of the papers by the motor 14 being started in the inverted sense of rotation.
  • the paper re-winding is normally faster than is the paper releasing and, at this stage, the kinematic chain rotates in the sense of arrows R.
  • the driving roller 11 will rotate in an anticlockwise direction to cause fast re-winding of the paper roll 10 around the drum 9.
  • the portion of paper extending out of the dispenser will return to its dash-and-dot-line position of figure 4 where the paper adheres to the outer surface of the cradle-shaped housing 4, so that the pair of articulated levers 28 and 29 are caused to move back to their starting position as shown in a discontinued line.
  • the paper re-winding is stopped by the blade-like lever 29 actuating the microswitch M2 which sends a signal to station C to stop the motor 14.
  • the dispenser is ready for a further paper utilization.
  • the axis or drum 9 thereof will move up vertically along the elongated openings 12 in the sidewalls 1 and 2 of the dispenser frame.
  • the invention provides the square member 32 whose horizontal arms 34 fit into corresponding cavities 36 in said roller 6.
  • the square member 32 also functions as a means for controlling the self-rewinding of the end paper portion when the paper roll 5 has runned out.
  • said arms 34 will tend, under effect of spring 33, to enter the cavities 36 in the roller 6 to cause a rotation of the square member 32 about the pivotal axis 35 (figure 2) which actuates the microswitch M3.
  • This microswitch M3 sends a signal to the centralized station C whereupon this latter causes the paper to re-wind during a predetermined time at a high speed.
  • recharging of the paper dispenser is as follows: - the paper roll 10 is removed from the top of the dispenser by the axis 9 being caused to slide off the open-top slits 12 and a fresh paper roll 5 is fitted into the cradle-like housing 4.
  • the automatic rolled-paper dispenser of the invention has significant advantages over the paper dispensers of the prior art, these advantages being mainly due to the fact that only one single motor 14 is used to operate the whole of the kinematic chain of the dispenser thereby eliminating the need for separate control of two individual motors, as is the case with the known types of dispensers.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Replacement Of Web Rolls (AREA)
  • Basic Packing Technique (AREA)
  • Unwinding Webs (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Claims (5)

1. Un distributeur automatique de papier en rouleaux (5) du genre à cycle fermé, c'est-à-dire du genre dans lequel le papier, après être passé autour d'un rouleau moteur (6) par une fente de sortie (7) et une fente d'entrée (8) du distributeur, est enroulé de nouveau au moyen d'un rouleau moteur (11), autour d'un axe ou tambour de re-enroulement (9) pour former un rouleau (10) de papier, comprenant un seul moteur (14) pour déplacer lesdits rouleaux-moteurs (6) et (11), des moyens qui commandent le démarrage, l'arrêt et le demi-tour du moteur, et des moyens pour signaler l'épuisement du rouleau (5) de papier et pour commander le re-enroulement rapide du papier et dans lequel ledit moteur (14) commande un arbre portant, à proximité de ses extrémités, des respectives hélices ou vis (20) et (21) qui à leur tour s'engagent avec des respectives roues dentées (22) et (23), iesdites roues dentées (22) et (23) étant calées sur lesdits rouleaux-moteurs (11) et (6) respectivement, ladite vis (20) étant calée sur l'arbre (19) tandis que la vis (21) est fixée à l'arbre (19) de façon à être entraînée en rotation seulement quand l'arbre (19) tourne dans une direction déterminée, de telle sorte que pendant la phase de distribution du papier, tous les deux rouleaux-moteurs (11) et (6) sont actionnés, tandis que pendant la phase de re-enroulement du papier, seulement le rouleau-moteur (11) est actionné, caractérisé du fait que l'arbre dudit moteur (14) se développe perpendiculairement à l'extérieur de la paroi latérale (1) du logement du distributeur et est solidaire avec un pignon moteur (15) s'engageant avec une roue conduite (16) qui à son tour s'engage avec une couple orthogonale (17, 18) pour actionner ledit arbre (19) portant lesdites hélices (20, 21) et dans lequel lesdites hélices (20, 21) s'engagent directement avec des roues dentées portées sur lesdits rouleaux-moteurs (6) et (11), les extrémités desdits rouleaux-moteurs (6) et (11) se de- veloppant perpendiculairement à l'extérieur de la paroi latérale du logement du distributeur, tous ces moyens étant logés à l'extérieur dudit logement, le rouleau (10) de papier s'enroule autour de l'axe (9) de re-enroulement qui est toujours en contact avec le rouleau-moteur (11).
2. Un distributeur selon la revendication 1, où ledit rouleau-moteur (6), par l'intermédiaire d'une couple de roues dentées (24, 25) commande la rotation de la came ou disque (26), la came ou disque (26) portant une rainure (27) et étant pourvue d'une griffe (38) pour l'actionnement d'un micro-interrupteur (M1) qui commande l'arrêt dudit moteur (14).
3. Un distributeur selon la revendication 2, où une couple de leviers articulés (28, 29) est prévue, une extrémité du premier levier de cette couple se positionne dans ladite rainure de la came (26), quand la dernière a actionné le micro-interrupteur (M1), tandis que le deuxième levier ou lame (29) pousse le papier par son extrémité contre un appui fixe (39).
4. Un distributeur selon la revendication 3, où pendant la phase de re-enroulement du papier, ladite couple de leviers articulés (28, 29) subit un déplacement tel que le levier (29) pivote autour du point d'articulation du levier et actionne un micro-interrupteur (M2) qui commande l'arrêt du moteur (14).
5. Un distributeur selon une quelconque des revendications 1 à 4, où au moins un premier rouleau (6) desdits rouleaux-moteurs (6, 11) est pourvu de rainures (36) et lesdits moyens presseurs du papier entrent dans lesdites rainures, lesdits moyens presseurs étant constitués au moins d'un élément à équerre (32), le bras (34) duquel est poussé par un ressort (33) contre une desdites rainures (36) du rouleau (6), de sorte que à l'épuisement du rouleau (5) de papier, ledit bras (34) entre dans la correspondante rainure (36) produisant la rotation de l'élément à équerre (32) autour de l'axe de son pivot (35) pour actionner le micro-interrupteur (M3) qui produit le re-enroulement pour un temps déterminé du morceau de papier saillant.
EP86830040A 1985-03-22 1986-02-19 Distributeur automatique de papier enroulé Expired - Lifetime EP0195751B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86830040T ATE50131T1 (de) 1985-03-22 1986-02-19 Automatischer ausgeber fuer papierrollen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT20031/85A IT1184187B (it) 1985-03-22 1985-03-22 Distributore automatico di carta in rotoli
IT2003185 1985-03-22

Publications (3)

Publication Number Publication Date
EP0195751A2 EP0195751A2 (fr) 1986-09-24
EP0195751A3 EP0195751A3 (en) 1987-05-13
EP0195751B1 true EP0195751B1 (fr) 1990-02-07

Family

ID=11163262

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86830040A Expired - Lifetime EP0195751B1 (fr) 1985-03-22 1986-02-19 Distributeur automatique de papier enroulé

Country Status (4)

Country Link
EP (1) EP0195751B1 (fr)
AT (1) ATE50131T1 (fr)
DE (1) DE3668769D1 (fr)
IT (1) IT1184187B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5772291A (en) 1996-02-16 1998-06-30 Mosinee Paper Corporation Hands-free paper towel dispensers
US6695246B1 (en) 1996-02-16 2004-02-24 Bay West Paper Corporation Microprocessor controlled hands-free paper towel dispenser
CN115399663B (zh) * 2021-05-27 2023-09-19 广州凡而芳香日用品有限公司 纸张分配器

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1398458A (fr) * 1964-06-11 1965-05-07 Neuco Appbau Ag Distributeur automatique d'essuie-mains
CH528257A (de) * 1972-01-28 1972-09-30 Cws Int Ag Handtuchbahnausgeber
CH560536A5 (fr) * 1974-02-06 1975-04-15 Neuco Apparatebau Ag

Also Published As

Publication number Publication date
IT1184187B (it) 1987-10-22
EP0195751A2 (fr) 1986-09-24
EP0195751A3 (en) 1987-05-13
DE3668769D1 (de) 1990-03-15
ATE50131T1 (de) 1990-02-15
IT8520031A0 (it) 1985-03-22

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