EP1933684A1 - Distributeur de tissu à taille de noyau versatile - Google Patents

Distributeur de tissu à taille de noyau versatile

Info

Publication number
EP1933684A1
EP1933684A1 EP07783544A EP07783544A EP1933684A1 EP 1933684 A1 EP1933684 A1 EP 1933684A1 EP 07783544 A EP07783544 A EP 07783544A EP 07783544 A EP07783544 A EP 07783544A EP 1933684 A1 EP1933684 A1 EP 1933684A1
Authority
EP
European Patent Office
Prior art keywords
tissue
spindle
sleeves
tissue dispenser
base
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Withdrawn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
EP07783544A
Other languages
German (de)
English (en)
Inventor
Stephen E. Anderson
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.)
Georgia Pacific Nonwovens LLC
Original Assignee
Buckeye Technologies Inc
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 Buckeye Technologies Inc filed Critical Buckeye Technologies Inc
Publication of EP1933684A1 publication Critical patent/EP1933684A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/32—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
    • A47K10/3836—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 with roll spindles which are supported at one side
    • 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
    • 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
    • A47K2010/3246—Locking mechanisms for the housing
    • 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
    • A47K2010/3253—Dispensers for paper towels or toilet-paper with one or more reserve rolls

Definitions

  • the present invention relates to the field of dispensers. More specifically, the present invention relates to dispensers which are capable of accommodating different sizes of tissue rolls and tissue roll cores.
  • Toilet tissue is usually manufactured and marketed in rolls. The rolls are attached to dispensers which are mounted on a wall. Toilet tissue rolls used in a commercial setting have core-diameters ranging from one to four inches, while household rolls generally have a more standard core diameter of about one and one-half inches.
  • toilet tissue dispensers In a commercial setting, toilet tissue dispensers oftentimes support multiple rolls.
  • Wall mounted devices for dispensing multiple tissue paper rolls are known in the art. Such rolls typically may support the axis of each roll either parallel to or perpendicular to a mounting wall.
  • U.S. Patent No. 3,294,329 describes a dispenser wherein tissue rolls are mounted in a side-by-side orientation, with the axis of each roll perpendicular to the wall of a washroom.
  • U.S. Patent No. 4,872,601 describes a dispenser wherein industrial sized rolls, as opposed to personal sized rolls, are mounted in a side -by-side orientation.
  • a spindle is provided to support the various tissue rolls.
  • Various spindle arrangements for wall-mounted dispensers exist in the marketplace. Such spindle arrangements may accommodate two, three or four rolls.
  • a two-roll dispenser may have a movable top spindle which drops out of an enclosure either by pressing a button or alternatively being automatically tripped when the lower roll is depleted.
  • Another multiple roll dispenser is in the form of a carousel that allows the user to rotate sequential rolls along the wall of the washroom.
  • Other tissue dispensers such as that described in U.S. Patent No. 4,807,823, have a top roll and a bottom roll holder, both of which have fixed spindles.
  • An enclosure is provided over the top roll so that to the user cannot remove tissue sheets from the top roll until the bottom roll has been depleted.
  • tissue roll The capacity of a tissue roll is dependent upon the size of the core diameter and roll width.
  • Most commercial toilet tissue dispensers limit roll size versatility because each dispenser only accepts one core size and/or one tissue roll size.
  • a dispenser that can accept various sized core diameters would allow a user to load a wide variety of commercial grade tissue rolls. By having one dispenser that can provide tissue from different sized rolls, the need to purchase a plurality of different dispensers to accommodate each core size is eliminated.
  • U.S. Patent No. 6,364,245 describes a tissue dispenser with adaptable spindle core support structures that may be used with at least two different diameter cores of toilet roll tissue.
  • the core support structures project from and attach to the back wall of the dispenser.
  • the supports are stationary and do not concurrently rotate with an engaged tissue core.
  • a user pulling the tissue from the roll must exert enough effort to overcome any frictional resistance between the tissue core and the corresponding, stationary core support.
  • tissue may prematurely break when pulled, causing inconvenience for a user.
  • tissue dispenser having a means for accommodating tissue rolls of various inner core diameters.
  • tissue dispenser wherein the support structure rotates with the roll.
  • the benefits and advantages of the present invention are achieved by an improved tissue dispenser capable of accommodating tissue rolls having different inner core sizes and different outer diameters.
  • the dispenser generally includes a base and a cover. Both the base and the cover have a side wall.
  • the base of the dispenser has at least one spindle.
  • a first spindle and a second spindle are provided. Each spindle extends from the base, and is rotatable relative to the base.
  • Each spindle has an elongated shaft terminating at a tip distally from the base.
  • the tips of the spindles are shaped to operatively engage outer knobs along the cover. In this manner, a user may rotate the spindles and supported tissue rolls by rotating the knobs external to the dispenser.
  • the dispenser also has a plurality of sleeves interchangeably disposed on the shafts of the one or more spindles.
  • Each sleeve comprises an elongated shaft with an inner diameter dimensioned to receive the shaft of the spindle.
  • the sleeves optionally have slots to receive a corresponding spline of the spindle. In this way, rotational movement of the spindle imparts rotational movement to the sleeve.
  • the sleeves have a plurality of fins radially disposed on the outer diameter.
  • the fins have a width dimensioned to circumferentially support the inner diameter of a core of a tissue roll.
  • the widths of the fins for the sleeves vary so as to accommodate tissue rolls having different inner core sizes.
  • the dispenser also preferably includes a door assembly.
  • the door assembly is configured to selectively cover a tissue roll on either the first or the second side of the base.
  • the door assembly is biased to a right side, and a door catch is provided to selectively hold the door assembly to a left side after a left tissue roll has been substantially exhausted.
  • a plurality of snap fittings configured to releasably attach to the door assembly may also be provided.
  • Each snap fitting has a different height to prevent the premature movement of the door assembly by the user from one side of the tissue dispenser to the other, depending upon the diameter of the core of the tissue rolls used.
  • the selected snap fitting releasably attaches along a horizontal base of the door assembly.
  • the dispenser preferably has an outer first knob and an outer second knob. Each knob is supported on the cover.
  • the outer first and second knobs are aligned with the tips of the first and second spindles, respectively, such that rotation of the first knob causes the first spindle and supported sleeve to rotate, while rotation of the second knob causes the second spindle and supported sleeve to rotate.
  • this invention provides a tissue dispenser comprising:
  • each sleeve comprising an elongated shaft terminating at an end, the shaft having an inner diameter dimensioned to receive the shaft of the spindle, and an outer diameter, and wherein at least two of the plurality of sleeves are configured to support tissue rolls having cores of different inner diameters.
  • the sleeves have different outer diameters dimensioned to support tissue rolls having cores of about 2.5 cm to about 11 cm in diameter.
  • the plurality of sleeves may comprise (i) a first pair of sleeves, with each of the sleeves having outer diameters dimensioned to support tissue rolls having a core diameter of about 5.84 cm; and (ii) a second pair of sleeves, with each of the sleeves having outer diameters dimensioned to support tissue rolls having a core diameter of about 8.38 cm.
  • each of the plurality of sleeves further comprises at least one fin disposed on the outer diameter of the sleeve.
  • the at least one fin has a width dimensioned to circumferentially support the core of a tissue roll.
  • the at least one fin may comprise a plurality of fins radially disposed around the outer diameter of the shaft of the corresponding sleeve. For some sleeves, the fins provide the outer diameter of the sleeves used to support the tissue rolls.
  • the at least one spindle defines a single spindle.
  • the single spindle is configured to rotate relative to the base, and to receive and support a tissue roll.
  • the spindle may be configured to rotate relative to the base, and to receive and support a tissue roll having a core diameter of about 2.8 cm.
  • the at least one spindle defines a left and a right spindle, with each spindle receiving one of the plurality of sleeves for supporting a tissue roll.
  • the tissue dispenser further comprises:
  • the base may further comprise a side wall along the base having opposing ends, with each end of the side wall defining a pivot arm, and a pin disposed in each of the pivot arms to provide pivoting connections between the side walls and the cover.
  • the tissue dispenser further comprises:
  • (E) a door assembly configured to selectively cover a tissue roll on either the left or the right side of the base.
  • the door assembly may further comprise a horizontal base, and a handle for engaging the door assembly by a user.
  • the door assembly is biased to a first side of the tissue dispenser, and further comprises a door stop and a door catch disposed in the base of the tissue dispenser for releasably receiving the door stop and holding it on an opposing second side of the tissue dispenser.
  • the tissue dispenser further comprises:
  • each snap fitting configured to releasably attach to the door assembly, with each snap fitting having a different height to prevent the premature movement of the door assembly by the user from a first side of the tissue dispenser to a second side, depending upon the diameter of the core of the tissue rolls used.
  • the snap fittings preferably attach releasably to the horizontal base of the door assembly.
  • the at least one spindle comprises a left spindle and a right spindle
  • the tissue dispenser further comprises:
  • the tips of the left and right spindles each comprises a shaped surface that mates with an inner surface of the left and right knobs, respectively.
  • the inner surface of the left and right knobs further comprises a separate washer member.
  • Figure 1 is a perspective view of the dispenser of the present invention, in one embodiment. Two tissue rolls are shown within the dispenser, in phantom.
  • FIG 2 is a perspective view of the dispenser of Figure 1, with the cover opened to expose the base. No tissue roll is loaded into the dispenser so that internals of the dispenser may be more clearly seen.
  • Figure 3 is an enlarged view of the base of the dispenser of Figure 1.
  • the cover is removed from the base for illustrative purposes.
  • the door assembly is positioned on the right side of the base.
  • Sleeves have not been positioned on the spindles of the base.
  • Figures 4A and 4B provide perspective views of two different snap fittings for the base.
  • the snap fitting of Figure 4A has a height that is shorter than the snap fitting of Figure 4B.
  • Figure 5 is a rear perspective view of a spindle being moved through the right opening of the base.
  • Figure 6 is an enlarged viewed of the base of the dispenser of Figure 1.
  • the cover has been removed from the base for illustrative purposes.
  • a single roll of tissue has been loaded onto the left spindle.
  • a sleeve is seen on the right spindle.
  • Figure 7 provides a perspective view of an exemplary spindle and an exemplary sleeve. The sleeve is exploded away from the spindle.
  • Figures 8A and 8B provide perspective views of two different embodiments of sleeves.
  • the sleeve of Figure 8 A has fins that are of a smaller width than the sleeve of Figure 8B.
  • Figure 9 is a perspective view of the inner surface of a portion of the cover of Figures 1 and 2. The knob and inner washer are shown exploded away from the right opening of the cover.
  • Figure 10 shows a perspective view of the knob and inner washer of Figure 9, but with the cover removed for illustrative purposes. The tip of a spindle is seen engaging the ridges of the inner washer. The sleeve is not shown.
  • tissue refers to any woven or nonwoven substrate fabricated from cellulosic or synthetic fibers.
  • core means a central, substantially cylindrical opening about which tissue is wound or rolled.
  • the core may be a supporting member or may simply be a reserved opening.
  • FIG 1 presents a perspective view of a dispenser 100 of the present invention, in one embodiment.
  • the purpose of the dispenser 100 is to dispense tissue (such as toilet tissue) to a user.
  • the dispenser 100 is shown in a vertical orientation, ready for use.
  • the tissue dispenser 100 is preferably secured to a vertical surface such as a bathroom wall or stall (not shown).
  • the dispenser 100 includes a base 200, and corresponding cover 300.
  • the base 200 is secured to the vertical surface (not shown), while the cover 300 pivotally attaches to the base 200.
  • the tissue dispenser 100 dispenses a single roll of tissue.
  • the dispenser 100 be a dual roll dispenser, permitting a pair of tissue rolls to be dispensed in sequence.
  • the dispenser 100 may accommodate three or more tissue rolls.
  • the illustrative dispenser 100 of Figure l is a two-roll dispenser.
  • the cover 300 is secured to the base 200 such that internal components of the two-roll dispenser 100 are not visible.
  • a pair of rolls 20, 30 is shown in phantom and behind the cover 300. The rolls represent a left roll 20 and a right roll 30.
  • Figure 2 demonstrates a perspective view of the dispenser 100 of Figure 1, with the cover 300 being opened to expose the base 200. No tissue roll is loaded onto the dispenser 100. However, a left roll 20 is seen exploded away from the base 200. More specifically, a left roll 20 is exploded away from a left spindle 4OL on the left side of the base 200.
  • the exemplary left roll 20 comprises two aspects. First, the roll has a circular inner core 22. Second, the roll 20 has tissue 24 wound over or around the core 22. The core 22 serves as a central supporting member about which the tissue 24 is wound or rolled. The tissue roll 20 defines an outer diameter that must fit within the left side of the dispenser 100.
  • the tissue 24 of the tissue roll 20 is a substrate of airlaid, nonwoven fibers held together by a binding agent.
  • a wide variety of natural and synthetic fibers are suitable for use as matrix fibers for the nonwoven tissue.
  • Preferred matrix fibers are cellulosic fibers, though matrix fibers may also be synthetic fibers or a mixture of cellulosic and synthetic fibers.
  • Cellulosic fibrous materials suitable for use in the dispenser 100 include both softwood fibers and hardwood fibers.
  • the cellulose fiber for use as a matrix fiber has been derived from a source which is one or more of Southern Softwood Kraft, Northern Softwood Kraft, hardwood, eucalyptus, mechanical, pre- and post-consumer recycled wood fibers and rayon, or Southern Softwood Kraft, Northern Softwood Kraft, or a mixture thereof. Southern Softwood Kraft is most preferred.
  • Binders suitable for use in the nonwoven material may be various bicomponent binder fibers or mixtures thereof, various latices or mixtures thereof, or bicomponent fibers or mixtures thereof in combination with various latices or mixtures thereof, which may be thermoplastic, thermosetting or a mixture thereof.
  • the present invention is not limited by the type or composition of tissue 24 used.
  • the dispenser 100 first includes a base 200.
  • the base 200 comprises a body 202 used to secure the base 200 to a supporting surface.
  • the body 202 may be any plate, and preferably is a substantially planar body that supports tissue rolls 20, 30. Encompassing at least a portion of the body 202 is a side wall 204.
  • the wall 204 is integral to the body 202 and covers the rolls 20, 30 for aesthetic and hygienic purposes.
  • An opening 205 (seen in Figure 3) is retained along the side wall 204 at the bottom of the body 202 to provide an access to the tissue rolls 20, 30 by a user.
  • central plate 206 Within the side wall 204 and central to the body 202 is a central plate 206.
  • the central plate 206 defines a vertical member that separates the left 20 and right 30 tissue rolls.
  • the central plate 206 serves to prevent contamination between the rolls 20, 30 and to isolate the right roll 30 while the left roll 20 is being used.
  • the use of the central plate 206 is an optional feature.
  • a pair of keyholes 208 are designed to mate with fingers 308 on the cover 300.
  • the keyholes interact with a lock 306. Together the keyholes 208, fingers 308 and lock 306 form a locking assembly to selectively lock the cover 300 to the base 200 so as to prevent user access.
  • a key 307 is shown for manipulating the fingers 308.
  • pivot arms 210 At opposing ends of the side wall 204 of the base 200 are pivot arms 210.
  • Each pivot arm 210 contains a pin opening which receives a pin 212.
  • the pin 212 provides a pivoting connection between the base 200 and the cover 300.
  • the base 200 also includes a plurality of connector openings 214.
  • the connector openings 214 are formed into the body 202 and are preferably oval in shape.
  • Each connector opening 214 is designed to optionally receive a connector (not shown) such as a bolt or screw. In this manner, the base 200 may be secured to a vertical support surface such as a bathroom wall or stall (not shown).
  • Figure 3 presents an enlarged view of the base 200 of Figures 1 and 2.
  • the cover 300 has been removed from the base 200 for illustrative purposes. In this view, various features of the base 200 are more clearly seen. These include the body 202, the side wall 204, the central plate 206, and the keyholes 208. Also visible in Figure 3 is an optional door assembly 220.
  • the door assembly 220 serves to limit a user's access to one side of the dispenser 100 or the other when the cover 300 is over the base 200. The door assembly 220 would not be needed where the dispenser includes only a single tissue roll.
  • the door assembly 220 first includes a horizontal base member 222.
  • the base member 222 is positioned along the right side of the base 200. In this position, the user does not have access to a roll (not shown) which would be loaded on the right side of the dispenser 100.
  • the horizontal base 222 is designed to be slideable along the body 202 of the dispenser 100.
  • a handle 224 is provided below the horizontal base 222 of the door assembly 220.
  • a channel 225 is further provided along the body 202 in order to afford a track along which the horizontal base 222 may slide.
  • the door assembly 220 further comprises a door stop 226.
  • the door stop 226 is a generally triangular piece secured to the horizontal door base 222.
  • the door stop 226 and connected horizontal base 222 are biased to be in the right side of base 200.
  • the biasing feature is preferably a spring (not shown), which urges the door stop 226 and base 222 to the right.
  • the user may slide the door stop 226 and horizontal base 222 towards the left side of the dispenser 100 along channel 225.
  • the door stop 226 reaches the left side of the base 200, it catches a door catch 228 in the body 202. In this manner, the biasing effect of the door assembly 220 is overcome and the door stop 226 and horizontal base 222 are maintained on the left side of the base 200.
  • the user may then access the tissue roll 30 on the right side of the dispenser 100.
  • An additional optional feature of the door assembly 220 is a snap fitting 240.
  • the snap fitting 240 also defines a generally triangular member. In the embodiment of Figure 3, the snap fitting 240 fits upon a left end of the horizontal base 222. The snap fitting 240 serves as a barrier to prevent a user from sliding the door stop 226 and connected base 222 until the left roll 20 is substantially exhausted.
  • the snap fitting 240 is designed to be releasably engaged to the horizontal base 222. In this way, snap fittings 240 of different sizes, i.e. different heights, may be employed. This, in turn, allows the dispenser 100 to functionally accommodate tissue roll sizes 20, 30 of different outer diameters or different core sizes.
  • Figures 4A and 4B provide perspective views of two different snap fittings 240' and 240". It can be seen that snap fitting 240' of Figure 4A has a shorter height than snap fitting 240" of Figure 4B. In this way, a maintenance person can control when the door assembly 220 can be moved from its right position to its left position, depending upon the diameter of the core 22 of the left tissue roll 20.
  • a shorter snap fitting such as fitting 240'
  • a taller snap fitting such as fitting 240" of Figure 4B
  • the operation of the door assembly 220 could be inverted.
  • the door assembly could be biased to the left side of the dispenser 100, and the snap fitting 240' or 240" could be keyed to the size of the right tissue roll 30 and core 32. This is simply a designer's choice.
  • the tissue dispenser 100 includes a cover 300 pivotally secured to the base 200.
  • the cover 300 includes a body 302 and a generally radial side wall 304.
  • An opening is once again preserved in the side wall 304, which generally corresponds with the access opening 205 preserved by the side wall 204 of the base 200.
  • a pair of pivot arms 310 At opposing ends of the side wall 304 is a pair of pivot arms 310.
  • Pivot arms 310 generally correspond in position and function with pivot arms 210 of the base 200.
  • Each pivot arm 310 includes a pinhole which receives the pins 212. In this manner, the pivot arms 310 of the cover 300 are pivotally secured to the pivot arms 210 of the base 200.
  • the cover 300 has been pivotally opened relative to the base 200. In this way, the internal features of the base 200 and cover 300 are exposed. Further in this manner, a tissue roll such as left roll 20 may be loaded onto the base 200.
  • a tissue roll such as left roll 20 may be loaded onto the base 200.
  • the left 20 and right 30 tissue rolls have been loaded onto left 4OL and right 4OR spindles (spindles seen in Figure 3). Further, the cover 300 has been pivotally rotated into a locked position with the base 200.
  • a locking assembly is provided.
  • the locking assembly is seen in Figure 2 on the cover 300 and includes a lock 306.
  • the lock 306 operates with a cam (not shown) which transmits pivoting movement to a pair of fingers 308 in response to rotating action of a key 307. This means that rotation of the key 307 within the lock 306 permits a maintenance person to manipulate the position of the fingers 308.
  • the fingers 308 mate with keyholes 208 of the base 200. Closing the cover 300 against the base 200 ( Figure 1) causes the fingers 308 to lock into the keyholes 208 in a manner known in the art.
  • the maintenance person turns the lock 306 of the cover 300, causing the fingers 308 to be released from the keyholes 208.
  • the cover 300 may then be swung open from its closed position in Figure 1 to its opened position in Figure 2.
  • the tissue rolls 20, 30 are supported by left 4OL and right 4OR spindles.
  • the spindles 4OL, 4OR are more clearly seen in the enlarged perspective view of Figure 3.
  • the two spindles 4OL, 4OR are preferably identical in configuration and dimension.
  • the spindles 4OL, 4OR are designed to freely rotate relative to the body 202 of the base 200.
  • a level of friction may be selectively applied between the spindles 4OL, 4OR and the body 202 in order to impose a degree of difficulty in the rotation of the supported tissue rolls 20, 30.
  • Figure 5 provides a rear perspective view of a spindle 4OR being moved into the base 200. More specifically, an exemplary spindle 4OR is being inserted into a right opening 230R of the body 202 of the base 200. It can be seen that the spindle 4OR has a base 42 that is designed to fit into the right opening 230R. The circumference of the base 42 defines a bearing surface for rotation within the right opening 230R. The base 42 and connected spindle 4OR are secured to the body 202 by a locking washer 48 (seen in Figure 7).
  • the base 200 has a left opening 230L. It is understood that the left opening 230L will also receive a spindle (spindle 40L) and a locking washer 48. Each spindle 4OL, 4OR, in turn, will receive a core 22, 32 of tissue rolls 20, 30 respectively.
  • FIG. 6 presents another enlarged view of the base 200 of Figure 1.
  • the cover 300 has again been removed from the base 200 for illustrative purposes. It can be seen in this view that the left tissue roll 20 has been placed onto the left spindle 4OL. However, the roll 30 for the right spindle 4OR has been exploded away from the dispenser 100. It can also be seen from Figure 6 that the right spindle 4OR has a sleeve 50 positioned over its length. The sleeve 50 has a plurality of fins (seen at 58 in Figure 7) which engage the core 32 of a tissue roll 30 when it is placed onto the spindle 4OR. This means that while a sleeve 50 cannot be seen over left spindle 4OL, it is present but obscured by the left roll 20.
  • sleeves 50 and connected fins 58 will receive cores 22, 32 of the tissue rolls 20, 30.
  • the sleeves 50 are preferably secured to the spindles 4OL, 4OR so that there is no relative rotational movement. Stated another way, when spindle 4OR rotates, the sleeve 50 and connected tissue roll 30 likewise rotate. Similarly, when spindle 4OL rotates, the sleeve 50 and connected tissue roll 20 likewise rotates. However, the locking washers 48 do not rotate, but secure the spindles 4OL, 4OR to the body 202.
  • Figure 7 shows a perspective view an exemplary spindle 40 and an exemplary sleeve 50.
  • the sleeve 50 is exploded away from the spindle 40. Relative features of the spindle 40 and the sleeve 50 are more clearly seen.
  • the spindle 40 includes a base 42, and an elongated shaft 43 that terminates at a tip 44.
  • the base 42 of the spindle 40 engages an opening (such as left opening 230L) in the body 202 of the dispenser 100.
  • a circumference of the base 42 serves as a bearing surface within the body 202 of the base 200.
  • the shaft 43 of the spindle 40 extends outwardly from the body 202 of the base 200.
  • the shaft 43 preferably has a circular profile, although other profiles may be used.
  • the shaft 43 terminates at a tip 44.
  • the tip 44 defines a smaller diameter than the shaft 43. This permits the tip 44 to an end 54 of the sleeve 50, as will be more fully described below.
  • Along the outer diameter of the shaft 43 is one or more splines 46.
  • the splines 46 engage mating slots 56 at the end 54 of the sleeve 50.
  • the end 54 of the sleeve defines a radially inward shoulder that includes slots 56.
  • the slots 56 receive the spindles 46. In this manner, relative rotation of the spindle 40 and the sleeve 50 is prohibited.
  • the tip 44 of the spindle 40 optionally includes an elastically formed catch 55.
  • the catch 55 is designed to interact with the radial, inwardly formed shoulder defining the end 54 of the sleeve 50. In this way the sleeve 50 is secured onto the spindle 40 during operation.
  • the catch 55 can be released by a maintenance person by pressing the catch 55 inward to clear the shoulder 54.
  • the locking washer 48 Along an outer diameter of the spindle 40 is placed the locking washer 48.
  • the locking washer 48 has a circular profile. Along its outer diameter are tabs 49 configured to snap into corresponding openings 209 in the body 202.
  • the washer 48 provides a degree of friction against the rotation of the spindle. In such an arrangement (not shown), the washer 48 may optionally be adjusted to increase or decrease the inertial rotation of the tissue roll 20or 30 during dispensing.
  • the tip 44 defines a shaped surface.
  • the shape is a cross fabricated from two, transverse and intersecting ridges. As will be discussed further below, these ridges mate with a shaped surface on the inner surface of an exterior knob 330.
  • the sleeve 50 includes a base 52, and a shaft 53 terminating at the end 54.
  • the shaft 53 of the sleeve 50 defines a hollow member having an inner diameter configured to receive the shaft 43 of the spline 40.
  • the end 54 of the sleeve 50 includes an opening which receives the tip 44 of the spindle 40.
  • the end 54 of the sleeve 50 defines an inward, radial shoulder having slots 56. The slots 56 mate with the splines 46 along the outer surface of the shaft 43 of the spindle 40.
  • the sleeve 50 includes a plurality of fins 58.
  • the fins 58 are radially spaced about the shaft 53 of the sleeve 50.
  • the fins 58 frictionally engage the inner diameter of the cores 22, 32 of tissue rolls 20, 30.
  • the fins 58 form an outer diameter that support the tissue roll core form each roll 20, 30.
  • sleeves 50 have different outer diameters. In one aspect, this is accomplished by providing different fin sizes.
  • Figures 8A and 8B provide perspective views of two different embodiments of illustrative sleeves 50', 50".
  • the sleeve 50' of Figure 8A has fins 58' that are of a smaller width than the fins 58" of the sleeve 50" of Figure 8B.
  • different sizes of sleeves 50', 50" may be used depending upon the size of the tissue roll 20, 30.
  • a driving factor in the size determination is the inner diameter of the cores 22, 32.
  • tissue roll cores typically run from about 2.5 cm to about 10.5 cm.
  • various sets of sleeves 50 having different outer diameters between 1.5 cm and 11 cm are provided to accommodate core sizes within this range.
  • one set of sleeves 50' forms an outer diameter that is 5.84 cm (2.3 inches) in diameter
  • another set of sleeves 50" forms an outer diameter that is 8.38 cm (3.3 inches) in diameter.
  • the outer diameter of the supporting spindle 40 have a diameter of 2.8 cm (1.1 inches). In this way, at least three different core-diameters are readily accommodated.
  • the plurality of sleeves comprises a first set of sleeves, each sleeve having fins that form an outer diameter of about 2.8 cm (1.1 inches), a second set of sleeves with each sleeve forming an outer diameter of about 5.84 cm (2.3 inches), a third set of sleeves where each sleeve forms an outer diameter of about 8.38 cm (3.3 inches), and a fourth set of sleeves that each provide an outer diameter of about 10.16 cm (4 inches).
  • any variation of diameters may be provided between 1.1 cm and 11 cm.
  • the outer diameter of the supporting spindle 40 itself have a diameter of 2.8 cm (1.1 inches) to support the smallest cores.
  • An additional feature of the tissue dispenser 100 is the ability of the user to rotate a spindle 40 and connected sleeve 50 and tissue roll (20, 30) from outside of the dispenser 100. This may be done by rotating outer knobs 330L, 330R on the cover 300 (seen in Figure 1).
  • Figure 9 provides a perspective view of the inner surface of a portion of the cover 300 of Figures 1 and 2.
  • a knob 330R is shown exploded away from the right opening 330R of the cover 300.
  • a rear of the knob 330R is seen.
  • an inner washer 334 is seen exploded away from the cover 300.
  • knob 330R provides a mating relationship with the washer 334.
  • the washer 334 provides a mating relationship with the tip 44 of the spindle 40. In this way, rotation of the knob 330R from outside of the cover 300 imparts rotational movement to the spindle 4OR.
  • FIG 10 is a perspective view of the outer knob 330R and inner washer 332 of Figure 9.
  • the cover 300 is removed for illustrative purposes.
  • the tip 44 of a spindle 4OR is seen engaging corresponding ridges 336 of the inner washer 334.
  • rotational movement of the outer knob 330R transmits rotational movement to the spindle 4OR.
  • the spindle 4OR rotates the secured sleeve 50 and supported tissue roll 30.

Abstract

L'invention concerne un distributeur de tissu permettant à un utilisateur d'accéder à un ou plusieurs rouleaux de tissu. Le distributeur contient généralement une base et un capot. Le distributeur comporte au moins une broche, et de préférence des broches de gauche et de droite, chaque broche étant supportée par la base et s'étendant depuis celle-ci. Le distributeur possède également une pluralité de manchons disposés de manière interchangeable sur les arbres des broches. Chaque manchon présente un diamètre interne dimensionné pour recevoir une broche correspondante, et un diamètre externe. Une pluralité d'ailettes est disposée radialement sur le diamètre externe du manchon pour supporter de manière circonférentielle le diamètre interne d'un noyau d'un rouleau de tissu. Il existe différents manchons possédant des diamètres externes différents pour des rouleaux de tissu ayant différentes tailles de noyau. Le distributeur peut également comporter un ensemble porte configuré pour recouvrir de manière sélective un rouleau de tissu sur le côté gauche ou le côté droit de la base. Il peut exister une pluralité de raccords d'encliquetage configurés pour se fixer de manière amovible à l'ensemble porte. Chaque raccord d'encliquetage possède une hauteur différente pour empêcher tout mouvement prématuré de l'ensemble porte par l'utilisateur d'un côté du distributeur de tissu à l'autre, selon le diamètre du noyau des rouleaux de tissu utilisés.
EP07783544A 2006-06-06 2007-05-09 Distributeur de tissu à taille de noyau versatile Withdrawn EP1933684A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US81125406P 2006-06-06 2006-06-06
PCT/US2007/068600 WO2007146516A1 (fr) 2006-06-06 2007-05-09 distributeur de tissu À taille de noyau versatile

Publications (1)

Publication Number Publication Date
EP1933684A1 true EP1933684A1 (fr) 2008-06-25

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EP07783544A Withdrawn EP1933684A1 (fr) 2006-06-06 2007-05-09 Distributeur de tissu à taille de noyau versatile

Country Status (5)

Country Link
US (1) US20070290094A1 (fr)
EP (1) EP1933684A1 (fr)
CA (1) CA2656943C (fr)
MX (1) MX2008015452A (fr)
WO (1) WO2007146516A1 (fr)

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Also Published As

Publication number Publication date
MX2008015452A (es) 2009-06-12
US20070290094A1 (en) 2007-12-20
CA2656943A1 (fr) 2007-12-21
WO2007146516A1 (fr) 2007-12-21
CA2656943C (fr) 2011-02-22

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