EP2641522A1 - Spenderanordnung - Google Patents

Spenderanordnung Download PDF

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Publication number
EP2641522A1
EP2641522A1 EP12002059.9A EP12002059A EP2641522A1 EP 2641522 A1 EP2641522 A1 EP 2641522A1 EP 12002059 A EP12002059 A EP 12002059A EP 2641522 A1 EP2641522 A1 EP 2641522A1
Authority
EP
European Patent Office
Prior art keywords
dispenser assembly
cylinder
deformable element
braking
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Withdrawn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
EP12002059.9A
Other languages
English (en)
French (fr)
Inventor
Yves Stoeffler
Julien Marietta-Tondin
Gilles Cattacin
Jean-Yves Janier-Dubry
Christine Millet
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.)
Essity Operations France SAS
Original Assignee
SCA Tissue France SAS
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 SCA Tissue France SAS filed Critical SCA Tissue France SAS
Priority to EP12002059.9A priority Critical patent/EP2641522A1/de
Publication of EP2641522A1 publication Critical patent/EP2641522A1/de
Withdrawn legal-status Critical Current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
    • A47K10/38—Dispensers for paper towels or toilet-paper dispensing from a web, e.g. with mechanical dispensing means the web being rolled up with or without tearing edge
    • 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
    • A47K2010/3233—Details of the housing, e.g. hinges, connection to the wall

Definitions

  • An aspect of the invention relates to a dispenser assembly.
  • a dispenser assembly finds a particular, though non exclusive, application in dispensing a paper towel roll.
  • the document US 2006/0102769 describes a dual-mount roll dispenser having a cover and a body.
  • the body portion is adapted for recess mounting but is also suitable to be exposed in a wall mount application.
  • the hinge or pivots that permit the cover to be opened are positioned sufficiently far forward that, together with the shape of the cover, the cover can be opened wide even when more than half the depth of the dispenser is recessed with a surrounding wall.
  • this dispenser is not satisfactory because at a maintenance operation, for example when the dispenser is refilled with a new paper towel roll, after being unlocked, the cover falls down rapidly during the opening phase under the action of gravity.
  • the action of gravity is further enhanced by the facts that the cover typically weights around 1 kg and is overhanging.
  • a dispenser assembly for dispensing a sheet from a roll of sheet material, the dispenser assembly comprising:
  • the hinge arrangement may comprise a first part coupled to the supporting base and a second part coupled to the housing cover, the hinge arrangement pivotally coupling the first part and the second part that have a rotational movement relative to each other when the housing cover is opened relatively to the supporting base, and wherein the hinge arrangement further comprises a deformable element interposed between the first part and the second part.
  • the first part may be realized under the form of a retaining housing provided in a lateral portion of the supporting base.
  • the second part may be realized under the form of a cylinder extending from a lateral portion of the housing cover, the cylinder comprising at least one projection extending outwardly substantially radially from the periphery of the cylinder, the projection being positioned at a distal end of the cylinder.
  • the retaining housing may define an internal space for receiving the cylinder together with the at least one projection that are free to rotate within said internal space.
  • Said projection may be an angular sector in a transverse section, a periphery of said projection defining a curved frictional surface.
  • the cylinder may comprise two projections that are asymmetrically positioned around a periphery of the cylinder.
  • the deformable element may be a washer having a cylindrical shape and comprising at least one inwardly and axially directed braking portion, the braking portion defining an inversely curved frictional surface.
  • the deformable element may comprise two braking portions that are symmetrically positioned around the washer.
  • the cylinder may comprise at least two projections and the deformable element may comprise at least two braking portions, said projections and braking portions being asymmetrically positioned relatively to each other such as to substantially continuously brake the housing cover during an opening phase.
  • the attacking edge of the projections may be provided with a rounded profile.
  • the internal periphery of the washer may have a first diameter such that the cylinder together with said projection is free to rotate within the washer, and a second diameter at said braking portion lower than the diameter of the cylinder together with said projection.
  • the deformable element may comprise at least one feather extending longitudinally or radially from the external periphery of the deformable element and arranged to be received within a respective longitudinally or radially extending recess in the retaining housing.
  • the feathers may be positioned outside zones defined by the braking portions.
  • the cylinder together with the projection may be made of a rigid plastic material, and the deformable element may be made of an elastically deformable flexible material.
  • the deformable element may be made of polyoxymethylene.
  • the roll of sheet material may be a paper towel roll.
  • a method of manufacturing a dispenser assembly comprising coupling a housing cover to a supporting base by means of a hinge arrangement, wherein the hinge arrangement is provided with an internal braking mechanism for the dispenser assembly according to the present invention.
  • the invention enables improving the safety of the maintenance operation requiring the opening of the cover by reducing the risk of injury due to a cover falling down rapidly by the action of gravity, in particular onto the operator. This may be particularly advantageous during maintenance of dispenser assembly used in a private application context, for example when the refilling is performed by an individual with disability. It further enables limiting the intensity of the impact of the cover onto the supporting wall of the dispenser assembly.
  • a roll of sheet material has a large meaning encompassing, as examples, the rolls of paper towels, toilet tissues, plastic sheets or the like, metal sheets (e.g. aluminum) sheets or the like, food preservation bags, wraps, etc...
  • the sheet material may be rolled as a continuous non-perforated sheet or pre-perforated sheets.
  • roll of sheet material also covers either roll of sheet material having a core, or roll of sheet material being coreless.
  • the sheet material is wound into a cylinder onto a core (as an example a hollow cylinder made of cardboard, or a plastic mandrel, or a metallic axle, etc)., or the sheet material is wound into a cylinder on itself such as to define a central hollow cavity of substantially cylindrical shape and of variable size extending longitudinally.
  • a core as an example a hollow cylinder made of cardboard, or a plastic mandrel, or a metallic axle, etc.
  • the dispenser assembly may be used for residential or commercial applications for dispensing multiple of the hereinbefore mentioned sheets of material from a roll of sheet material.
  • the dispenser assembly may dispense the sheets of material from the roll of sheet material either manually (a user may pull the sheet of material with a hand) or motor assisted (a motor may assist in automatically dispensing the sheet of material on wish).
  • motor assisted a motor may assist in automatically dispensing the sheet of material on wish.
  • the dispenser assembly 1 may comprise a supporting base 4, a roll holder 5 and a housing cover 6.
  • the roll of sheet material 3 may be held on both edges, i.e. by two arms. These are particular examples; other ways of holding the roll of sheet material within the dispenser assembly may be alternatively used.
  • the roll holder 5 may hold in a removable manner the roll of sheet material 3. The roll of sheet material 3 is free to rotate relatively to the roll holder 5.
  • the supporting base 4 may support the roll holder 5.
  • the supporting base 4 further couples the dispenser assembly 1 with an environment supporting structure WS, for example a wall, by means of appropriate securing elements 8 (screwing arrangement, gluing arrangement, etc..).
  • the supporting base 4 is further coupled to the housing cover 6 forming some kind of hood.
  • the housing cover 6 protects the interior of the dispenser with respect to various alterations potentially caused by the external environment (e.g. persons, humidity, etc).
  • the housing cover 6 comprises a front portion 6A provided with a slit 7 that is adapted to dispense sheets 2 of material.
  • the housing cover 6 comprises a lateral portion 6B that extends substantially perpendicular to the front portion 6A and substantially perpendicular to the supporting base 4. Alternatively, for reasons of design, the lateral portion 6B may extend at an angle from the front portion 6A towards the supporting base 4.
  • the housing cover 6 may be held in place onto the supporting base 4 by means of a locking arrangement 9.
  • FIG. 1 illustrates a dispenser assembly in a closed state.
  • All the hereinbefore mentioned parts of the dispensing assembly 1 may be made by injection molding of plastic. However, some parts made of metal may be included.
  • FIGS. 2 to 4 are a perspective sectional cut-away view along plane D-D, a cross section view along plane D-D, and a cross section view along plane FF schematically illustrating a hinge arrangement 10 according to a first embodiment adapted for the dispenser assembly of FIG. 1 , respectively.
  • FIGS. 6 to 8 and FIGS. 9 to 10 are cross section views along plane D-D schematically illustrating a second and third embodiment, respectively.
  • the first part is realized under the form of a retaining housing 12 provided in the supporting base lateral portion 11.
  • the housing 12 has a longitudinal axis X that may extend substantially parallel to the supporting base 4.
  • the housing 12 defines an internal space 13 (e.g. a parallelepipedic volume) for receiving the second part 14.
  • the second part 14 is realized under the form of a cylinder 15 that may be formed integrally with the housing cover 6.
  • the cylinder 15 may have the same longitudinal axis X as the housing 12.
  • the cylinder 15 may extend perpendicularly to a housing cover lateral portion 6B.
  • the cylinder 15 may be a hollow cylinder.
  • the cylinder 15 further comprises at least one projection 16A, 16B extending outwardly from the periphery of the cylinder 15 substantially radially, i.e. perpendicularly to the longitudinal axis X.
  • the cylinder 15 comprises a first 16A and second 16B projection.
  • Each projection 16A, 16B being an angular sector in a transverse section and having a rectangular axial section has the shape of an ear.
  • the projections 16A, 16B may be positioned at a distal end of the cylinder 15 farthest from the housing cover 6.
  • the cylinder 15 together with the at least one projection 16A, 16B is free to rotate within the internal space 13.
  • each projection 16A, 16B defines a curved frictional surface 22A, 22B.
  • the cylinder 15 together with the projection 16A, 16B has the function of a rotor, while the housing 12 has the function of a stator.
  • the two projections 16A, 16B are separated by a separation angle c (see in particular FIG. 3 ) such that they have asymmetrical positions on the cylinder 15.
  • the housing 12 and the cylinder 15 together with the projection 16A, 16B may be made of a rigid plastic material.
  • the cylinder 15 and the projections 16A, 16B may be formed integrally by injection molding of plastic.
  • the housing cover 6, the cylinder 15 and the projections 16A, 16B may be molded as a single piece of plastic.
  • the cylinder 15 (including the projections 16A, 16B) and the deformable element 17 dimensions are such that this assembly fits into the internal space 13 of the housing 12, is free to rotate within the housing 12 while being retained in place.
  • FIGS. 6 to 8 are cross section views along plane D-D schematically illustrating a hinge arrangement 10 according to a second embodiment adapted for the dispenser assembly of FIG. 1 .
  • Each radial feather is received within the corresponding radially extending recess such that, on the one hand, said feather is not able to leave said recess, and on the other hand, a radial clearance authorize a slight movement of said feather within said recess while the washer is deforming.
  • the radial feathers 24A, 24B, 24C, 24D and 24E may be positioned anywhere around the external periphery of deformable element 17 including the zone defined by the braking portions 19A and 19B.
  • the radial feathers 24A, 24B, 24C, 24D and 24E may be positioned outside the zone defined by the braking portions 19A and 19B in order to limit the interference with the deformation of the braking portions 19A and 19B during the opening of the housing cover 6.
  • the number and position of the axial feathers may be varied provided that an appropriate locking of the deformable element is obtained.
  • FIGS. 6 to 8 also illustrate an example of the operation of the hinge arrangement 10 at different stages of the opening of the cover.
  • FIGS. 6 , 7 and 8 illustrate the hinge arrangement 10 at the beginning of the opening phase after the housing cover 6 is unlocked from the supporting base 4, during the braked opening phase when the housing cover 6 is opened at, for example, an angle around 90° relatively to the supporting base 4, and at the end of the opening phase when the housing cover 6 is opened at an appropriate angle, respectively.
  • the housing cover 6 is unlocked and pulled from the supporting base 4 and begins to fall under the action of the gravity.
  • the cylinder 15 with its projections 16A, 16B begins to freely rotate (arrow R1) within the deformable element 17 when the housing cover 6 is opened from the supporting base 4.
  • a first braking phase is obtained when the curved frictional surface 22A of the first projections 16A contacts the inversely curved frictional surface 23A of the first braking portion 19A of the deformable element 17. Due to the elasticity of the deformable element 17 and the hardness of the cylinder 15 with its projections 16A, the curved frictional surface 22A compresses and deforms outwardly the inversely curved frictional surface 23A of the braking portion 19A of the deformable element 17. This is represented by the arrow D1 and the dash lines, the dash line schematically representing the ovalization of the washer resulting from the deformation of the inversely curved frictional surface.
  • a second braking phase is obtained when the curved frictional surface 22B of the second projections 16B then contacts the inversely curved frictional surface 23B of the second braking portion 19B of the deformable element 17. Due to the elasticity of the deformable element 17 and the hardness of the cylinder 15 with its projections 16B, the curved frictional surface 22B compresses and deforms (arrow D2) the inversely curved frictional surface 23B of the braking portion 19B of the deformable element 17. The effects of these deformations and these frictions are to apply a deformation effort and a mechanical braking torque that is counter-acting against the rotation (arrow R2), though not blocking the rotation of the cylinder 15 with its projections 16A, 16B within the deformable element 17. The braking resulting from the deformation effort appears to be of superior intensity than the braking resulting from the mechanical braking torque.
  • first 16A and second 16B projections of the cylinder 15 are positioned asymmetrically around the periphery of the cylinder 15, while the first 19A and second 19B braking portions of the deformable element 17 are positioned symmetrically around the washer 18, as illustrated in the drawings, is a mere example.
  • What matter in order to obtain the continuous or at least pseudo-continuous braking effect is the relative position of the projections 16A, 16B relatively to the braking portion 19A, 19B.
  • first 16A and second 16B projections of the cylinder 15 positioned symmetrically around the periphery of the cylinder 15, while the first 19A and second 19B braking portions of the deformable element 17 are positioned asymmetrically around the washer 18.
  • the projections 16A, 16B of the cylinder 15 are in a resting position relatively to the braking portions 19A, 19B of the deformable element 17.
  • the resting position may correspond to a position where the projections 16A, 16B are not deforming the braking portions 19A, 19B.
  • the resting position may also be preferred when the housing cover 6 is locked onto the supporting base 4.
  • the resting position avoids a deformation of the deformable element 17 during a long period of time (long relatively to the duration of the opening of the cover).
  • the property of elasticity of the deformable element 17 can be maintained over a long period of time, i.e. at least the mean lifetime of the dispenser assembly. This may be further improved by providing the attacking edge of the projections 16A, 16B of the cylinder 15 with a rounded profile 25 instead of a sharp perpendicular profile.
  • FIGS. 9 and 10 are cross section views along plane D-D schematically illustrating a third embodiment of a hinge arrangement adapted for the dispenser assembly of FIG. 1 at different stages of the opening of the cover, respectively.
  • the third embodiment differs from the second embodiment in that the deformable element 17 comprises less radial feathers 24A, 24B, 24C and 24D, and only one braking portion 19C.
  • the deformable element 17 is still formed as a washer 18 having a general cylindrical shape comprising a unique inwardly and axially directed braking portion 19C.
  • the braking portion 19C is forming a boss directed towards the longitudinal axis X.
  • the braking portion 19C has an inversed curvature (relatively to the general cylindrical shape) forming a frictional surface 23C.
  • the braking portion 19C may have an angular extension b substantially equal or lower than 180°.
  • FIGS. 9 and 10 also illustrate an example of the operation of the hinge arrangement 10 at different stages of the opening of the cover.
  • FIG. 9 and 10 illustrate the hinge arrangement 10 at two moments during the braked opening phase when the housing cover 6 is opened.
  • the projections 16A, 16B of the cylinder 15 are away from and not deforming the braking portion 19C.
  • a first braking phase ( FIG. 9 ) is obtained when the curved frictional surface 22A of the first projections 16A contacts the inversely curved frictional surface 23C of the braking portion 19C of the deformable element 17. Due to the elasticity of the deformable element 17 and the hardness of the cylinder 15 with its projections 16A, the curved frictional surface 22A compresses and deforms outwardly the inversely curved frictional surface 23C of the braking portion 19C of the deformable element 17. This is represented by the arrow D3 and the dash line that schematically represents the ovalization of the washer resulting from the deformation of the inversely curved frictional surface.
  • a second braking phase ( FIG. 9 ) is obtained when the curved frictional surface 22A of the first projections 16A contacts the inversely curved frictional surface 23C of the braking portion 19C of the deformable element 17. Due to the elasticity of the deformable element 17 and the hardness of the cylinder 15 with its projections 16A, the
  • the first projection 16A contacts the braking portion 19C and then the second projection 16B contacts the braking portion 19C in slight desynchronization.
  • the first braking phase is just about to finish when the second braking phase begins.
  • a complete opening of the housing cover 6 is reached after one braked rotation of the cylinder within the housing and corresponds to approximately a rotation of 180° of the cover. In this position, an operator can easily access into the dispenser assembly, for example in order to load a new roll of sheet material.
  • the hinge arrangement 10 as hereinbefore described results in a smooth, dampened and automatic (i.e. not manually assisted) opening of the housing cover 6 relatively to the supporting base 4.
  • the number, angles and positions of the projections 16 of the cylinder 15 and/or the braking portions 19 of the deformable element 17 in the depicted embodiments are non limitative examples. The skilled person will readily recognize that these number, angles and positions may be changed if desired or deemed necessary with respect to the required braking force or to adjust the speed of opening: for examples, the cylinder 15 may comprise only one projection 1, the deformable element 17 may comprise three braking portions symmetrically positioned, etc....
  • dispenser assembly illustrates a dispenser assembly comprising one hinge arrangement 10 for a mere clarity reason of the drawings.
  • the dispenser assembly may comprise two hinge arrangements 10, one coupling each edge of the cover 6 with the corresponding lateral portion 11 of the supporting base 4.
  • the respective hinge arrangements 10 may be different in term of the positioning of the braking portions with respect to the projection 16 of the cylinder in order to further adjust the braking force and the speed of opening.
  • the hinge arrangement on the left of the cover may provide a braking phase that is not simultaneous with the hinge arrangement on the right of the cover.
  • dispenser assembly illustrates a particular example of a base comprising a closure according to a housing cover with a slit.
  • base and housing cover may be convenient provided that they are coupled together by a hinge mechanism as hereinbefore described.
  • the depicted embodiment illustrates a dispenser assembly wherein the roll of sheet material is positioned horizontally. However, it may also be positioned vertically, or at an angle.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Pivots And Pivotal Connections (AREA)
EP12002059.9A 2012-03-23 2012-03-23 Spenderanordnung Withdrawn EP2641522A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12002059.9A EP2641522A1 (de) 2012-03-23 2012-03-23 Spenderanordnung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12002059.9A EP2641522A1 (de) 2012-03-23 2012-03-23 Spenderanordnung

Publications (1)

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EP2641522A1 true EP2641522A1 (de) 2013-09-25

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EP12002059.9A Withdrawn EP2641522A1 (de) 2012-03-23 2012-03-23 Spenderanordnung

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220410449A1 (en) * 2019-11-21 2022-12-29 Lisa Draxlmaier Gmbh One-piece cast component having at least one integrated attachment part, and method for producing a cast component

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276945A (en) * 1991-11-05 1994-01-11 Shuji Matsumura Hinge device having directional damping
US20060102769A1 (en) 2004-11-12 2006-05-18 Russell Wieser Dual-mount roll dispenser
DE202005005533U1 (de) * 2005-04-07 2006-08-17 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät sowie Bewegungsdämpfer hierfür
US20080263821A1 (en) * 2007-04-25 2008-10-30 Levey Kenneth R In-mold hinge assembly and method of fabricating the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5276945A (en) * 1991-11-05 1994-01-11 Shuji Matsumura Hinge device having directional damping
US20060102769A1 (en) 2004-11-12 2006-05-18 Russell Wieser Dual-mount roll dispenser
DE202005005533U1 (de) * 2005-04-07 2006-08-17 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät sowie Bewegungsdämpfer hierfür
US20080263821A1 (en) * 2007-04-25 2008-10-30 Levey Kenneth R In-mold hinge assembly and method of fabricating the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220410449A1 (en) * 2019-11-21 2022-12-29 Lisa Draxlmaier Gmbh One-piece cast component having at least one integrated attachment part, and method for producing a cast component
US11981058B2 (en) * 2019-11-21 2024-05-14 Lisa Draxlmaier Gmbh One-piece cast component having at least one integrated attachment part, and method for producing a cast component

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