US3684338A - Compact towel dispenser - Google Patents

Compact towel dispenser Download PDF

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Publication number
US3684338A
US3684338A US99039A US3684338DA US3684338A US 3684338 A US3684338 A US 3684338A US 99039 A US99039 A US 99039A US 3684338D A US3684338D A US 3684338DA US 3684338 A US3684338 A US 3684338A
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Prior art keywords
towel
cam
housing
cam follower
stop
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US99039A
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English (en)
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Erwin B Bahnsen
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Steiner American Corp
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Steiner American Corp
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K10/00—Body-drying implements; Toilet paper; Holders therefor
    • A47K10/24—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven
    • A47K10/28—Towel dispensers, e.g. for piled-up or folded textile towels; Toilet-paper dispensers; Dispensers for piled-up or folded textile towels provided or not with devices for taking-up soiled towels as far as not mechanically driven dispensing a clean part and taking-up a soiled part, e.g. using rolls; with dispensers for soap or other detergents; with disinfecting or heating devices

Definitions

  • a continuous towel dispenser comprises dispensing apparatus including a measuring roll for feeding a loop of towel from a clean towel supply in a housing to a use position outside of the housing and thence along a return path back into the housing, take-up means in the housing for retracting soiled towel from the return path, and a roll stop assembly including a disc-like cam having a spiral cam surface and a transverse groove thereon and being rotatable with the measuring roll, a cam follower engageable with and movable by the spiral cam surface transversely thereof from a variable starting position to a stopping position in the transverse groove, and a stop surface rotatable with the cam and engageable with a stop dog on the cam follower when the cam follower is in its stopping position for thereby halting rotation of the measuring roll, the cam follower being returnable along the transverse groove to the starting position, at which point the stop dog engages an adjustable retainer which defines the variable starting positions; the roll stop assembly is of relatively flat compact construction to minimize the size of the dispenser.
  • the present invention relates generally to improvements in dispensing mechanisms, and specially to improvements in the construction and operation of towel dispensers, which improvements are well adapted for use and incorporation in towel dispensers of the continuous type, wherein the towel is made available to the user in the form of a loop of towel located, in most cases, beneath the dispenser structure.
  • the present invention relates to compact towel dispensers of economical construction and simple operation so as to be suitable for home use.
  • a compact towel dispenser of the continuous type comprising a housing having associated therewith a loop of towel that extends along an exit path from a clean towel supply within the housing to an exposed position accessible to a user and thence along a return path into the housing, towel dispensing apparatus including a measuring roll rotatably mounted in the housing for dispensing a predetermined length of clean towel into the loop along the exit path when the ac-- cessible portion of the loop is pulled by a user, loop take-up means mounted in the housing and coupled to the dispensing apparatus for retracting and storing soiled towel from the return path, a disc-like cam member having a spiral cam surface thereon and mounted for rotation with the measuring roll, a cam follower mounted for engagement with the spiral cam surface and movable thereby transversely thereof during rotation of the cam member, a stop dog mounted for movement with the cam follower, and a stop member mounted for rotation with the cam member and having a stop surface adapted to engage the stop dog to
  • Still another object of this invention is to provide a stop mechanism for stopping the rotation of an associated roll after a predetermined number of revolutions thereof, the stop mechanism comprising a disclike cam member having a spiral cam surface thereon and mounted for rotation with the associated roll, a cam-follower mounted for engagement with the spiral cam surface and movable thereby transversely thereof during rotation of the cam member, a stop dog mounted for movement with the cam follower, and a stop member mounted for rotation with the cam member and having a stop surface adapted to engage the stop dog to halt the rotation of the cam member when the cam follower has been moved a predetermined distance by the spiral cam surface, whereby the rotation of the associated roll is stopped after a predetermined number of revolutions corresponding to the predetermined distance.
  • the cam member is disc-like in shape and has a spiral groove formed in one face thereof for defining the spiral carn surface, the cam member having a rectilinear groove formed in the one face thereof extending transversely of and intersecting the spiral groove from the inner end to the outer end thereof, the cam follower being movable from a variable starting position to a stopping position disposed in the rectilinear groove during rotation of the cam member through a predetermined number of revolutions, and further including an adjustable retaining member mounted for engagement with the stop dog when the cam follower is in the starting position thereof thereby defining the starting position, the adjustable retaining member being movable among a plurality of settings for varying the starting position of the cam follower and thereby varying the distance from the starting position to the stopping position, engagement of the stop surface with the stop dog under the urging of the driving force serving to hold the cam follower in the stopping position thereof, removal of the driving
  • Still another object of this invention is to provide a towel dispenser of the continuous type, comprising a housing having an access opening therein and having associated therewith a loop of towel that extends along an exit path form the housing to an exposed position accessible to a user and thence along a return path into the housing, a cover mounted on the housing adjacent to said access opening for movement between a closed position closing the access opening and an open position providing access to the housing through the access opening, towel dispensing apparatus mounted in the housing for dispensing clean towel therefrom into the loop along the exit path when the accessible portion of the loop is pulled by a user, loop take-up means mounted in the housing and coupled to the dispensing apparatus for retracting and storing soiled towel from the return path, a towel bed mounted in the housing for accommodating therein a supply of clean towel and having a cam follower surface thereon, the towel bed being disposed in use in a dispensing configuration within the housing for dispensing clean towel therefrom along the exit path when the cover is in the closed position thereof, the towel bed being movable between
  • a towel dispenser of the type set forth which includes a towel breaker mounted in the housing and having a first breaker edge thereon disposed in engagement with the soiled towel along the return path for smoothing of the soiled towel to facilitate storage thereof by the take-up means, the towel bed in the dispensing configuration thereof being disposed in engagement with the towel breaker and having a second breaker edge thereon disposed in engagement with the soiled towel along the return path and cooperating with the first breaker edge for smoothing the soiled towel when the towel bed is in the dispensing configuration thereof.
  • FIG. 1 is a front elevational view of the towel dispenser of the present invention, with the position of the accessible portion of the towel loop being illus trated in phantom;
  • FIG. 2 is an enlarged view in vertical section taken along the line 2-2 in FIG. I, and illustrating the towel dispensing and take-up apparatus in the towel dispensing cabinet;
  • FIG. 3 is a further enlarged front elevational view of the dispensing unit of the present invention with the dispenser housing removed;
  • FIG. 4 is a reduced fragmentary side elevational view of the dispensing unit of FIG. 3, as viewed from the left-.
  • FIG. '3 hand side of FIG. '3, and illustrating the sprocket and chain drive means interconnecting the measuring roll and the take-up drive roll:
  • FIG. 5 is a reduced side elevational view of the dispensing unit of FIG. 3, as viewed from the right-hand side of FIG. 3;
  • FIG. 6 is an enlarged fragmentary view in vertical section taken along the line 6-6 in FIG. 5, and illustrating the cooperation between the measuring roll and the spiral cam member;
  • FIG. 7 is an enlarged fragmentary view of the roll stop assembly shown in FIG. 5 with a portion of the cam follower plate broken away to more clearly show the spiral cam member, and illustrating the roll stop assembly in the starting configuration thereof;
  • FIG. 8 is a view similar to FIG. 7, and illustrating the roll stop assembly midway between the starting configuration and the stopping configuration thereof;
  • FIG. 9 is a view similar to FIG. 7, and illustrating the roll stop assembly of the present invention in the stopping configuration thereof;
  • FIG. 10 is an enlarged front elevational view of the towel dispenser of the present invention, with the front cover thereof in the closed position and having portions thereof broken away to more clearly illustrate the latch mechanisms for holding the front cover in the open and closed positions thereof;
  • FIG. 1 l is a side elevational view of the towel dispenser of FIG. 10, as viewed from the left-hand side thereof, and illustrating the latching and releasing positions of the bottom latch members;
  • FIG. 12 is a side elevational view of the towel dispenser of FIG. 10, as viewed from the right-hand side thereof;
  • FIG. 13 is an enlarged fragmentary view of the towel dispenser of FIG. 10, with the front cover thereof shown latched in the open position thereof.
  • the towel dispenser is generally rectangularin shape and'includes a channel-shaped rear casing, generally designated by the numeral 110, which has a flat rear wall 111 and a pair of relatively short side walls 112 and 114 respectively integral with the opposite side edges of the rear wall 111 and extending forwardly therefrom substantially normal thereto.
  • the rear casing 110 is adapted to be mounted with the rear wall 11 1 disposed flush against a suitable upstanding wall or other mounting surface 119, as is best illustrated in FIGS. 2 and 13, with the side walls 1 12 and l 14 disposed substantially vertically.
  • the side wall 112 has a rectangular notch 118 formed therein intermediate the upper and lower ends thereof for a purpose to be described below, the side wall 112 also being provided with a generally rectangular pivot projection 113 integral with the upper end thereof and extending upwardly therefrom.
  • a generally trapezoidal shaped pivot projection 115 is integral with the upper end of the side wall 114 and extends upwardly therefrom.
  • a latch pin 116 extends laterally outwardly from the pivot projection 115 adjacent to the front edge thereof, while two latch pins 117 respectively extend laterally outwardly from the side walls 112 and 114 adjacent to the bottom ends thereof, all for a purpose to be explained more fully hereinafter.
  • the towel dispenser 100 is also provided with a front cover or door, generally designated by the numeral 120, the cover 120 preferably being formed integrally of a single piece of material and comprising a flat front wall 121, a top wall 122 and a pair of opposed side walls, 123 all interconnected by rounded top comers 122a.
  • the top wall 122 and the side walls 123 extend rearwardly from the adjacent edges of the front wall 121 substantially normal thereto.
  • Each of the side walls 123 is provided at the bottom end thereof with an inwardly curving corner portion 123a, the inner ends of the corner portions 123a being spaced 'apart a predetermined distance greater than the width of an associated towel web 102 to be dispensed from the dispenser 100 for thereby defining a dispensing opening therein.
  • Respectively integral with the corner portions 123a at the inner edges thereof and extending vertically upwardly therefrom are two cam members 124, each provided with a downwardly and rearwardly sloping arcuate cam surface 124a along the upper edge thereof.
  • Respectively secured to the inner surfaces of the top comers 122a are two bearing brackets, generally designated by the numeral 125.
  • the bearing brackets 125 are formed as mirror images of each other, each of the brackets 125 including upper and lower attachment flanges 126 secured to the inner surface of the adjacent comers 122a, as by welding, and a generally vertically extending bearing flange 127.
  • the front cover 120 is so dimensioned as to fit over the front of the rear casing 110, with the side walls 123 of the cover 120 respectively spaced a predetermined distance outwardly of the side wall 112 and 114 of the rear casing 110, and with the top wall 122 and the bottom corner portion 123a of the housing 120 respectively extending above and below the upper and lower extremeties of the rear casing 110.
  • Two pivot pins 128 respectively extend through complementary openings in-the bearing flanges 127 of the bearing brackets 125 and the pivot projections 113 and 115 for pivotally mounting the front cover 120 on the rear casing 110, spacers 129 being provided in surrounding relationship 6 with the pivot pins 128 for spacing the pivot projections 113 and from the adjacent bearing flanges 127, as
  • a door opening latch member is pivotally mounted at one end thereof on the inner surface of the right hand one of the bearing flanges 127, as viewed in FIG. 10, by means of a pivot pin 131 disposed forwardly ofthe adjacent pivot pin 128.
  • the latch member 130 includes a flat upper plate 132 and a flat lower plate 134 disposed substantially parallel to the upper plate 132 and offset inwardly a slight distance therefrom and connected thereto by an inclined median flange 133.
  • Projecting laterally outwardly from the bottom plate 134 adjacent to the lower end thereof is a generally U-shaped channel portion 135, having a hook 136 extending rearwardly therefrom. Another hook 137 is formed along the bottom end of the bottom plate 134 forwardly of the channel portion 135.
  • the latch member 130 In use, when the front cover is disposed in the closed position thereof, illustrated in FIG. 12, the latch member hangs vertically downwardly from the pivot pin 131. As the front cover is pivoted upwardly toward the open position thereof illustrated in FIG. 13, the pivot pin 131 and the attached latching member 130 will move upwardly an rearwardly with the front cover 120 until the latch member 130 engages the latch pin 116.
  • the latch member 130 and latch pin 116 are so constructed and arranged that when the latch member 130 engages the latch pin 116, the latch member 130 will have been sufficiently raised so that the latch pin 116 engages the rear edge 138 of the bottom plate 134.
  • the latch pin 116 will ride along the edge 138 of the bottom plate 134, thereby raising the lower end of the latch member 130.
  • the latch pin 116 will enter the channel portion 135, thereby permitting the latch member 130 to pivot in a counterclockwise direction as viewed in FIG. 13.
  • the hook 137 falls into engagement with the latch pin 116 for halting the pivotal movement of the latch member 130.
  • the front cover may be released and the latch member 130 and the front cover 120 will be supported in the open position thereof upon the latch pin 116.
  • Each of the latch members 145 is pivotally movable about a mounting screw 148 by which the latch member 145 is secured to the adjacent side wall 123, the latch member 145 extending rearwardly from the mounting screw 148 a slight distance beyond the rear edge of the adjacent side wall 123.
  • Each of the latch members 145 is provided with a notch 145a in the lower edge thereof, adapted for receiving therein the adjacent one of the latch pins 117 when the front cover 120 is in the closed position thereof, for thereby latching the front cover 120 in its closed position.
  • an inclined lift tab 149 Extending laterally outwardly from the rear end of the latch member 145 beyond the adjacent side wall 123 is an inclined lift tab 149 readily accessible to a user. In order to unlatchthe front cover 120 and raise it from its closed position, it is necessary only to lift each of the latch members 145 by means of the lift tabs 149 until the latch members 145 are disengaged from the latch pins 117, after which the front cover may be raised all in the same motion.
  • the dispensing unit 140 includes a pair of upstanding spaced-apart substantially parallel side plates 141 respectively mounted adjacent to the inner surface of the side walls 112 and 114 of the rear case 110. More particularly, each of the side plates 141 includes an attachment flange 142 integral with and extending inwardly from the rear edge of the side plate 141 substantially normal thereto, the attachment flanges 142 being disposed in use flush against the rear wall 111 of the rear case 1 l and secured thereto by suitable fasteners such as screws 142a (see FIG.
  • each of the side plates 141 Extending outwardly from each of the side plates 141 are two annular bearing flanges 143, respectively disposed about complementary circularopenings through the side plate 141, the openings in each of the side plates 141 being disposed in horizontal alignment with those in the other side plate 141. Extending downwardly and rearwardly into each of the side plates 141 from the upper edge thereof is an elongated slot 144 for a purpose to be explained more fully below, In addition, each of the side plates 141 has formed therein adjacent to the front edge thereof an irregular shaped slot or opening 146, the purpose of which will be described below. Secured to each of the side plates 141 adjacent to the slot 146 and extending thereinto is a slot support member 147.
  • an arcuate towel bed Extending between the side plates 141 adjacent to the lower ends thereof is an arcuate towel bed, generally designated by the numeral 150. Respectively integral with the opposite side edges of the towel bed 150 and extending radially inwardly therefrom are two mounting flanges 151 respectively disposed along the inner surface of the adjacent side plate 141 and pivotally secured thereto by means of pivot pins 152.
  • the towel bed is provided along the upper rear end thereof with an arcuate breaker flange terminating in a rear breaker edge 156, the breaker flange 15S having rectangular notches 157 respectively formed in the opposite side edges thereof (see FIG. 3). ln use, the towel bed 150 is pivotally movable between a dispensing position, illustrated in the drawings, and a loading position (not shown), for accommodating therein a clean towel supply roll 105.
  • a substantially horizontally disposed measuring roll 160 Extending between the side plates 141 adjacent to the front ends thereof and above the towel bed 150 is a substantially horizontally disposed measuring roll 160, the opposite ends of the measuring roll 160 being respectively received in adjacent ones of the bearings 143 in the side plates 141 for rotation therein.
  • the circumferential outer surface of the measuring roll 160 is covered with an abrasive covering 164 to provide better frictional engagement with the towel web 102, as will be described more fully hereinafter.
  • a tie rod or roller shaft 161 Extending axially through the measuring roll 160 and secured thereto is a tie rod or roller shaft 161 having a screw head at one end thereof and being threadedly engaged at the other end thereof with a lock nut 163.
  • a pinch roll 165 Disposed slightly above and forwardly of the measuring roll 160 and parallel thereto is a pinch roll 165, being provided at the opposite ends thereof with stub shafts 166 respectively receivable in the adjacent ones of the irregular slots 146 in the side plates 141. Normally, the stub shafts 166 will ride in the bottom of the slots 146, the outer surface 167 of the pinch roll being normally urged by gravity into engagement with the abrasive surface 164 on the measuring roll 160.
  • a take-up drive roll 170 Also extending between the side plates 141 a slight distance above and rearwardly of the measuring roll 160 and parallel thereto is a take-up drive roll 170, the opposite ends of the take-up drive roll 170 being respectively received in adjacent ones of the bearings .143 in the side plates 141 for rotation therein.
  • a tie rod or roll shaft 171 Extending axially through the take-up drive roll 1 70 and secured thereto is a tie rod or roll shaft 171 provided with a screw head at one end thereof and being threadedly engaged at the other end thereof with a lock nut 173.
  • the circumferential outer surface of the takeup drive roll 170 is covered with an abrasive covering 174 to provide improved frictional engagement with the towel web 103 in a manner to be described.
  • a take-up roll 175 provided at the opposite ends thereof with stub shafts 176 respectively receivable in the elongated slots 144 in the side plates 141, the stub shafts 176 having a diameter slightly less than the width of the slots 144 to readily permit movement of the take-up roll 175 upwardly along the slots 144 for removal of the roll 175 from the dispensing unit 140, the stub shafts 176 normally lying in the arcuate bottom ends of the slots 144.
  • each of the rolls 160 and 170 is provided at the end thereof with projecting lugs (not shown) receivable in corresponding notches in the sprockets 180 for insuring positive rotation of the sprockets 180 and the rolls 160 and 170, the sprockets 180 being secured in place by the lock nuts 163 and 173.
  • Interconnecting the sprockets 180 is a roller chain 182 for translating the rotational movement of the measuring roll 160 to the take-up drive roll 170 for a purpose to be explained below.
  • a part-cylindrical guard plate 185 Extending between the side plates 141 immediately below the measuring roll 160 and closely adjacent thereto is a part-cylindrical guard plate 185, preferably provided with mounting tabs (not shown) at the opposite ends thereof respectively received in corresponding slots in the side plates 141 for securing the guard plate 185 in place.
  • a guard plate 190 Also extending between the side plates 141 immediately above the pinch roll 165 in the normal operating position thereof illustrated in FIG. 2 is a guard plate 190.
  • the guard plate 190 is provided at the rear end thereof with mounting tabs 191 respectively pivotally secured by cooperating pivot pins to the adjacent side plates 141 for accommodating pivotal movement of the guard plate 190.
  • the front end 192 of the guard plate 190 extends over the pinch roll I65 and is shaped conformably therewith and in use normally rests upon the pinch roll 165 of the portion of the towel web 102 extending thereover as will be explained below.
  • an inclined towel breaker plate Extending between the side plates 141 adjacent to the rear edges thereof is an inclined towel breaker plate, generally designated by the numeral 195, the breaker plate 195 including a pair of forwardly and upwardly extending mounting arms 196 at the opposite ends thereof, respectively secured to the side walls 141 by suitable means such as complementary tabs and slots.
  • the front edge 199 of the breaker plate 195 is disposed substantially horizontally and is adapted for engagement with the towel web 102 in a manner which will be described.
  • the arcuate breaker flange 155 thereof is disposed in engagement with the breaker plate 195 between the mounting arms 196, the breaker edge 156 being disposed above the breaker edge 199 for cooperation therewith in a manner to be explained below.
  • the dispenser 100 is loadedby moving the front cover 120 to the open position thereof illustrated in FIG. 13, and then pivoting the towel bed 150 forwardly, in a counterclockwise direction as viewed in FIG. 2, to a loading configuration (not shown).
  • a roll 105 of clean towel may be inserted in the towel bed 150.
  • the leading end of the towel web 102 is pulled upwardly in front of the measuring roll 160 and then behind and around the pinch roll 165 along an exit path 101.
  • the pinch roll 165 may be moved upwardly along the slots 146 and placed in a holding position with the stub shafts 166 engaged in spurs 146a of the slots 146, thereby freeing both hands of the user for performing the threading operation.
  • the pinch roll 165 is returned to its operative position, illustrated in FIG. 2 for pinching the towel web 102 between the measuring roll 160 and the pinch roll 165.
  • the guard plate 190 is returned to its position on top of the pinch roll 165, in which position it will serve to protect the portion of the clean towel web 102 disposed along the exit path 101.
  • the front cover 120 of the dispenser may now be lowered to its closed position in the manner described above.
  • the towel bed 150 will have first been pivoted back to its dispensing configuration illustrated in FIG. 2, but in any event, movement of the towel bed 150 back to its dispensing configuration is insured by the present invention.
  • the cam surfaces 1240 of the cam members 124 will engage the outer surface of the towel bed which serves as a cam follower surface, for thereby effecting a cammed movement of the towel bed 150 back to its dispensing configuration with the arcuate breaker flange thereof in engagement with the breaker plate 195.
  • the breaker edge 156 is in engagement with the towel web 102 along the return path 107 thereof and cooperates with the breaker edge 199, which also engages the towel web 102 a slight distance below the breaker edge 156, for smoothing the soiled towel web to facilitate winding and storage thereof on the take-up roll 175. It will be noted that, when the front cover 120 is latched in its closed position, as illustrated in FIG. 2, the cam surfaces l24a will hold the towel bed 150 in its dispensing When a user desires to dispense clean towel from the dispenser 100, he simply pulls downwardly on the front portion of the exposed loop 103 of the towel web 102 and withdraws a length of clean towel web from the roll 105.
  • This withdrawal of the towel web 102 causes a clockwise rotation of the measuring roll 160, which in turn effects a corresponding clockwise rotation of the take-up drive roll by means of the chain 182 and sprockets 180, all as viewed in FIG. 2.
  • the rotation of the take-up drive roll 170 which is in frictional engagement with the portion of the coil 109 wound upon the take-up roll 75, will serve to frictionally drive the take-up roll in a counterclockwise direction as viewed in FIG. 2, for retracting from the loop 103 and storing on the take-up roll 175 a length of towel web 102 substantially equal to that which was dispensed form the supply roll 105.
  • the roll stop assembly 200 includes a disc-like cam member, generally designated by the numeral 210, including a flat main configuration during the operation of the dispenser plate 211 provided with a pair of bearing flanges (not shown) extending rearwardly therefrom centrally thereof, and adapted to be received within the adjacent end of the measuring roll 160.
  • a spiral groove 214 Formed in the front surface of the main plate 211 of the cam member 210 is a spiral groove 214, having an inner end adjacent to the center of the main plate 211 and terminating in an outer end at the periphery of the main plate 211.
  • the spiral groove 214 may have any desired number of turns, but preferably includes three such complete turns, which are separated and defined by the coils of a spiral ridge 213, which provides a camming surface for a purpose to be described more fully below.
  • Extending radially outwardly from the center of the main plate 211 and intersecting the spiral groove 214 transversely thereof is a rectilinear groove 215 which extends between the inner and outer ends of the spiral groove 214.
  • the mounting flanges of the cam member 210 are telescopically received within the right-hand end of the measuring roll 160, as viewed in FIG. 6.
  • the cam member 210 is held in place on the measuring roll 160 by the tie rod 161 which extends through a complementary opening centrally disposed through the cam plate 210, with the head end of the tie rod 161 bearing against the front face of the cam member 210 adjacent to the inner end of the spiral groove 214.
  • a cam stop member 220 is disposed between the main plate 211 of the cam member 210 and a bearing 143a in the associated bearing flange 143 for the measuring roll 160, the cam stop member 220 having notches 221 formed in the opposite side edges thereof for accommodating therein the mounting flanges of the cam plate 210 as well as a pair of lugs212 extending outwardly from the end of the measuring roll 160, for thereby firmly holding the cam stop member 220 in place between the cam member 210 and the adjacent end of the measuring roll 160 for rotation therewith.
  • the cam stop member 220 is provided with a stop tip 225, which in the assembled position illustrated in FIG. 6, extends outwardly beyond the periphery of the cam member 210.
  • the tip 225 is provided with a pair of stop surfaces 226 converging outwardly toward the outer end of the tip 225.
  • a cam follower plate Pivotally mounted on the outer surface of the righthand one of the side plates 141, as viewed in FIG. 3, by means of a mounting screw 232, is a cam follower plate, generally designated by the numeral 230.
  • the cam follower plate 230 includes a rear portion 231 disposed substantially'parallel to the side plate 141 and a front portion 233 disposed substantially parallel to the rear portion 231 but offset outwardly therefrom a distance sufficient to clear the cam member 210.
  • An arcuate notch 234 is formed in the upper edge of the cam follower plate 230, intermediate the front and rear ends thereof, for accommodating therein an end cap 172a covering the adjacent end of the take-up drive roll 170 to permit pivotal movement of the cam plate 230, as will be described below.
  • a short cam follower flange or lug 235 Integral with the upper front end of the front portion 233 of the cam follower plate 230, and extending inwardly therefrom substantially normal thereto toward the side plate 141, is a short cam follower flange or lug 235 having a length substantially equal to the depth of the spiral groove 214 in the cam member 210.
  • the cam follower lug 235 is dimensioned to be accommodated in the spiral groove 214 of the cam plate 210 for camming engagement with the spiral ridge 213 during rotation of the cam plate 210, as will be described below.
  • the stop dog 236 is spaced from the cam follower lug 235 by a distanceslightly greater than the maximum width of the cam member 210, so that when the cam follower plate 230 is in the position illustrated in FIGS. 5 and 6, the cam follower lug 235 and the stop dog 236 will cooperate to bracket the cam member 210 therebetween.
  • an adjustable retaining member Secured to the right-hand one of the side plates 141, as viewed in FIG. 3, directly below the cam plate 210 is an adjustable retaining member, generally designated by the numeral 240, the retaining member 240 including an elongated generally rectangular main plate 241 disposed parallel to the side plate 141, and having a vertically extending elongated slot 242 therein for receiving therethrough a set screw 243 for securing the retaining member 240 to the side plate 141, the elongated slot 242 permitting vertical adjustment of the position of the retaining member'240, extending inwardly from the bottom end of the main plate 241 is a short ratchet pawl 244 adapted to be received in and cooperate with corresponding ratchet detents 246 in the side plate 141 to permit positive location of the retaining member 240 in any of several vertical positions, respectively corresponding to the ratchets detents 246.
  • a stop flange 245 Integral with the upper end of the main plate 241 and extending outwardly therefrom substantially normal thereto is a stop flange 245 for retaining the downward movement of the cam follower plate 230 in a manner to be described below. If desired, a pair of guide beads or projections 248 may be provided in the side plate 141 for receiving the retaining member 240 therebetween, thereby providing a guidetrack to maintain the retaining member 240 in the vertical orientation illustrated in FIG. 5.
  • the cam member 210 is initially oriented with the rectilinear groove 215 therein extending vertically, as illustrated in FIG. 7, and the cam follower plate 230 is pivoted downwardly, in a counterclockwise direction as viewed in FIG. 7, the cam follower lug 235 passing downwardly along the rectilinear groove 215 until it is aligned adjacent to the inner end of the spiral groove 214.
  • the retaining member 240 will be so positioned on the side plate 141 that when the cam follower plate 230 is disposed in the starting position thereof described above and illustrated in FIG. 7, the stop dog 236 thereof will rest upon the stop flange 245 of the retaining member 240.
  • the stop tip 225 of the cam stop member 220 extends vertically downwardly beyond the periphery of the cam plate 210.
  • the measuring roll 160 When a user pulls upon the exposed loop 103 of the towel web 102 for dispensing clean towel from the cabinet 100, the measuring roll 160, as well as the cam plate 210 and the cam stop member 220 which are secured to the measuring roll 160, all rotate together in a clockwise direction, as viewed in FIG. 7. As this clockwise rotation of the cam plate 210 begins, the cam follower lug 235 will enter the inner end of the spiral groove 214 and move into camming engagement with the spiral cam surface formed by the spiral ridge 213.
  • the engagement of the top surface 226 with the stop dog 236 halts the rotation of the cam plate 210, with the parts of the roll stop assembly 200 all disposed in a stopping configuration illustrated in FIG. 9.
  • the cam plate 210 is disposed in a stopping position substantially identical to the starting position thereof, with the rectilinear groove 215 therein disposed substantially vertically.
  • the cam follower plate 230 is disposed in its uppermost position, with the arcuate notch 234 thereof accommodating the end cap 172a therein, and with the cam follower lug 235 disposed in the rectilinear groove 215 adjacent to the outer end thereof.
  • the parts of the roll stop assembly 200 will be held in this stopping configuration by the engagement of the stop surface 226 with the stop dog 236 as long as a dispensing pull is exerted on the towel web 102 by the user.
  • this pull is released, after the rotation of the measuring roll 160 is stopped by the halting of the rotation of the cam plate 210, the rotational force on the stop member 220 will be removed, thereby permitting the stop dog 236 to slide downwardly along the stop surface 226.
  • the cam follower plate 230 will fall downwardly, pivoting in a counterclockwise direction as viewed in FIG. 9, this downward movement being accommodated by passage of the cam follower lug 235 vertically downwardly along the rectilinear groove 215.
  • the starting position of the cam follower plate 230 may also be adjusted upwardly, so that the cam follower lug 235 is initially positioned in any of the other turns of the spiral groove 214, for thereby reducing the number of revolutions through which the cam plate 210 must rotate before reaching its stopping position thereof, described above.
  • the parts of the roll stop assembly 200 may be positioned in three different starting configurations, respectively accommodating three revolutions, two revolutions, or one revolution of the cam plate 210 and the measuring roll 260 during each dispensing operation.
  • the length of towel web 102 which is dispensed during each dispensing operation may be selectively varied among any of three different lengths, respectively corresponding to one, two, or three times the circumference of the measuring roll 160.
  • FIG. 2 of the drawings the overall operation of the towel dispenser during a dispensing operation will be described in detail.
  • the dispenser 100 After the dispenser 100 has been loaded with a supply roll 105 of clean towel and the towel web 102 thereof has been threaded through the dispenser apparatus, in the manner described above, the towel web 102 and the parts of the towel dispenser 100 will be disposed and arranged as illustrated in FIG. 2. More particularly, the front cover of the dispenser 100 will be latched in its closed position, and the towel bed will be held in its dispensing configuration, with the breaker edge 156 thereof disposed in engagement with the towel web 102 in the return path 107 thereof, by the urging of the cam surfaces 124a against the bottom of the towel bed 150.
  • the roll stop assembly 200 will be disposed in the selected starting configuration thereof, which for purposes of illustration will be assumed to be that illus trated in FIG. 7.
  • the abrasive covering 174 on the take-up drive roll is disposed in frictional engagement with the coil 109 of soiled towel wound on the take-up roll 175, whereby the clockwise rotation of the take-up drive roll 170 effects a corresponding counterclockwise rotation of the take-up roll 175, as viewed in FIG. 2.
  • This rotation of the take-up roll 175 serves to retract from the return path 107 a length of soiled towel web substantially equal to the length of theclean towel web dispensed during the dispensing operation, for thereby maintaining the length of the exposed loop 103 substantially constant.
  • the soiled towel As the soiled towel is retracted onto the coil 109 thereof, it is drawn over the breaker edges 156 and 199 which cooperate to smooth the soiled towel and facilitate the storage thereof on the coil 109.
  • the stub shafts 176 of the take-up roll 175 are freely movable along the slots 144 in the side plates 141, for thereby accommodating an upward movement of the take-up roll 175 as the diameter of the coil 109 of soiled towel wound thereon increases.
  • the cam plate 210 will rotate in the manner described above, for thereby effecting a cammed movement of the cam follower lug 235 and the cam follower plate 230 from the starting position thereof, illustrated in FIG. 7, to the stopping position thereof, illustrated in FIG. 9.
  • the rotation of the cam plate 210 and the measuring roll 160 will be stopped by the engagement' of the stop surface 226 with the stop lug 236, as was described above.
  • the take-up roll 175 and the coil 109 of soiled towel wound thereon may be readily removed from the towel dispenser 100 by simply opening the front cover 120 and lifting the take-up roll 175 upwardly along the slots 144 until it clears the side plates 141. At this time, a new take-up roll 175 is inserted and a fresh supply of clean towel may be loaded into the towel bed 150 and threaded through the dispensing unit 140 in the manner described above.
  • the construction of the towel dispenser is such as to provide a small, compact dispenser which is suitable for home use.
  • the disc-like cam member 210 permits a relatively flat construction of the roll stop assembly 200, no part of which extends more than a fraction of an inch laterally outwardly of the adjacent side plate 141.
  • the width of the towel dispenser 100 is minimized.
  • the front cover 120 thereof will have an overall width of approximately 32 centimeters and an overall height of approximately 31 centimeters, the towel dispenser 100 being capable of dispensing a towel web 102 having a width of about 9 inches.
  • the rear casing 110 has a width and height substantially smaller than the width and height of the front cover 120. Furthermore, it will be noted that the pivot projections 113 and 115 are disposed toward the front edges of the side walls 112 and 114, and the pivot pins 128 are so positioned with respect to the side walls 123 of the front cover 120, that when the front cover 120 is disposed in its closed position, the rear edges of the side walls 123 thereof will be disposed well forwardly of the rear wall 111 of the rear casing 110. Thus, the small rear casing 110 will be visible behind the closed front cover 120, and will normally be painted a dark color while the front cover is painted a contrasting light color, to thereby enhance the diminutive appearance of the towel dispenser 100.
  • the roll stop assembly includes a novel spiral cam, and mechanism for selectively adjusting the roll stop assembly, to provide dispensing of any of three different lengths of towel web during each dispensing operation.
  • a compact towel dispenser of the continuous type comprising a housing having associated therewith a loop of towel that extends along an exit path from a clean towel supply within said housing to an exposed position accessible to a user and thence along a return path into said housing, towel dispensing apparatus including a measuring roll rotatably mounted in said housing for dispensing a predetermined length of clean towel into the loop along the exit path when the accessible portion of the loop is pulled by a user, loop take-up means mounted in said housing and coupled to said dispensing apparatus for retracting and storing soiled towel from the return path, a disc-like cam member having a spiral cam surface thereon and being mounted adjacent to one end of said measuring roll for rotation therewith, said cam member extending outwardly only a, slight distance beyond the adjacent end of said measuring roll to thereby minimize the width of said housing and facilitate compact construction thereof, a cam follower mounted for engagement with said spiral cam surface and movable thereby transversely thereof during rotation of said cam member, a stop dog mounted for movement with said cam follower, and
  • a compact towel dispenser of the continuous type comprising a housing having associated therewith a loop of towel that extends along an exit path from a clean towel supply within said housing to an exposed position accessible to a user and thence along a return path into said housing, towel dispensing apparatus including a measuring roll rotatably mounted in said housing for dispensing a predetermined length of clean towel into the loop along the exit path when the ac cessible portion of the loop is pulled by a user, loop take-up means mounted in said housing and coupled to said dispensing apparatus for retracting and storing soiled towel from the return path, a disc-like cam member having a spiral groove formed in one face thereof for defining a spiral cam surface and being mounted adjacent to one end of said measuring roll for rotation therewith, said cam member extending outwardly only a slight distance beyond the adjacent end of said measuring roll to thereby minimize the width of said housing and facilitate compact construction thereof, said cam member having a rectilinear groove formed in said one face thereof extending transversely of and intersecting said spiral groove
  • a compact towel dispenser of the continuous type comprising a housing having associated therewith a loop of towel that extends along an exit path from a clean towel supply within said housing to an exposed position accessible to a user and thence along a return path into said housing, towel dispensing apparatus including a measuring roll rotatably mounted in said housing for dispensing a predetermined length of clean towel into the loop along the exit path when the accessible portion of the loop is pulled by a user, loop take-up means mounted in said housing and coupled to said dispensing apparatus for retracting and storing soiled towel from the return path, a disc-like cam member having a spiral cam surface thereon and being mounted adjacent to one end of said measuring roll for rotation therewith, said cam member extending outwardly only a slight distance beyond the adjacent end of said measuring roll to thereby minimize the width of said housing and facilitate compact construction thereof, a cam follower mounted for engagement with said spiral cam surface and movable thereby transversely thereof from a variable starting position to a stopping position during rotation of said cam member, a stop dog
  • said spiral cam surface comprises a plurality of coils, said adjustable retaining member being movable among a plurality of settings for respectively locating the starting position of said cam follower in difierent ones of said coils.
  • said spiral cam surface comprises three coils, said adjustable retaining member being movable among three settings respectively locating the starting position of said cam follower in different ones of said coils for thereby accommodating the dispensing of any one of three different lengths of towel during each dispensing operation.
  • cam follower comprises a plate disposed substantially parallel to said relatively flat cam member and having a cam follower flange thereon for engagement with said spiral cam surface, said stop dog comprising an abutment flange carried by said plate and spaced from said cam follower flange.
  • a compact towel dispenser of the continuous type comprising a housing having associated therewith a loop of towel that extends along an exit path from a clean towel supply within said housing to an exposed position accessible to a user and thence along a return path into said housing, towel dispensing apparatus ineluding a measuring roll rotatably mounted in said housing for-dispensing a predetermined length of clean towel into the loop along the exit path when the accessible portion of the loop is pulled by a user, loop take-up means mounted in said housing and coupled to said dispensing apparatus for retracting and storing soiled towel from the return path, a disc-like cam member having a spiral groove formed in one face thereof for defining a spiral cam surface and being mounted adjacent to one end of said measuring roll for rotation therewith, said cam member extending outwardly only a slight distance beyond the adjacent end of said measuring roll to thereby minimize the width of said housing and facilitate compact construction thereof, said cam member having a rectilinear groove formed in said one face thereof extending transversely of and intersecting said
  • Stop mechanism for stopping the rotation of an associated roll after a predetermined number of revolutions thereof comprising a disclike cam memberhaving a spiral cam surface thereon and mounted for rotation with the associated roll, a cam follower mounted for engagement with said spiral cam surface and movable thereby transversely thereof during rotation of said cam member, a stop dog mounted for movement with said cam follower, and a stop member mounted for rotation with said cam member and having a stop surface adapted to engage said stop dog to halt the rotation of said cam member when said cam follower has been moved a predetermined distance by said spiral cam surface, whereby the rotation of the associated roll is stopped after a predetermined number of revolutions corresponding to said predetermined distance.
  • said stop mechanism comprising a disc-like cam member having a spiral groove formed in one face thereof for defining a spiral cam surface and mounted for rotation with the associated roll, said cam member having a rectilinear groove formed in said one face thereof extending transversely of and intersecting said spiral groove from the inner end to the outer end thereof, a cam follower mounted for engagement with said spiral cam surface and movable thereby transversely thereof from a variable starting position to a stopping position disposed in said rectilinear groove during rotation of said cam member through a predetermined number of revolutions, a stop dog carried by said cam follower and movable therewith, an adjustable retaining member mounted for engagement with said stop dog when said cam follower is in the starting position thereof to thereby define said starting position, said adjustable retaining member being movable among a plurality of settings for varying the starting position of said cam follower and thereby varying the distance from said starting position to said stopping position, and a stop member mounted for rotation with said cam member and having a 'stop surface adapted to engage
  • a towel dispenser of the continuous type comprising a housing having an access opening therein and having associated therewith a loop of towel that extends along an exit path from the housing to an exposed position accessible to a user and thence along a return path into the housing, a cover mounted on said housing adjacent to said access opening for movement between a closed position closing said access opening and an open position providing access to said housing through said access opening, towel dispensing apparatus mounted in said housing for dispensing clean towel therefrom into the loop along the exit path when the accessible portion of the loop is pulled by a user, loop take-up means mounted in said housing and coupled to said dispensing apparatus for retracting and storing soiled towel from the return path, a towel bed mounted in said housing for accommodating therein a supply of clean towel and having a cam follower surface thereon, said towel bed being disposed in use in a dispensing configuration within said housing for dispensing clean towel therefrom along said exit path when said cover is in the closed position thereof, said towel bed being movable between said dispensing configuration and a loading
  • the towel dispenser set forth in claim 27, and V further including a pair of spaced-apart cam members carried by said cover and engageable with said cam follower surface on said towel bed for balancing the application of camming forces thereto.
  • a towel dispenser of the continuous type comprising a housing having an access opening therein and having associated therewith a loop of towel that extends along an exit path from the housing to an exposed position accessible to a user and thence along a return path into the housing, a cover mounted on said housing adjacent to said access opening for movement between a closed position closing said access opening and an open position providing access to said housing through said access opening, towel dispensing apparatus mounted in said housing for dispensing clean towel therefrom into the loop along the exit path when the accessible portion of the loop is pulled by the user, loop take-up means mounted in said housing and coupled to said dispensing apparatus for retracting and storing soiled towel from the return path, a towel breaker mounted in said housing and having a first breaker edge thereon disposed in engagement with the soiled towel along the return path for smoothing of the soiled towel to facilitate storage thereof by said take-up means, a towel bed mounted in said housing for accommodating a supply of clean towel therein and having a second breaker edge and a cam follower surface there
  • a compact towel dispenser of the continuous I type comprising a housing having an access opening therein and having associated therewith a loop of towel that extends along an exit path from the housing to an exposed position accessible to a user and thence along a return path into the housing, a cover mounted on said housing adjacent to said access opening for movement between a closed position closing said access opening and an open position providing access to said housing through said access opening, towel dispensing app'aratus including a measuring roll rotatably mounted in said housing for dispensing a predetermined length of clean towel into the loop along the exit path when the accessible portion of the loop is pulled by a user, loop take-up means mounted in said housing and coupled to said dispensing apparatus for retracting and storing soiled towel from the return path, a towel bed mounted in said housing for accommodating therein a supply of clean towel and having a cam follower surface thereon, said towel bed being disposed in use in a dispensing configuration within said housing for dispensing clean towel therefrom along said exit path when said cover is in the closed position thereof,

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Unwinding Webs (AREA)
  • Body Washing Hand Wipes And Brushes (AREA)
  • Transmission Devices (AREA)
US99039A 1970-12-17 1970-12-17 Compact towel dispenser Expired - Lifetime US3684338A (en)

Applications Claiming Priority (1)

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US9903970A 1970-12-17 1970-12-17

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US3684338A true US3684338A (en) 1972-08-15

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US99039A Expired - Lifetime US3684338A (en) 1970-12-17 1970-12-17 Compact towel dispenser

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US (1) US3684338A (de)
JP (2) JPS524222B1 (de)
BE (1) BE776841A (de)
CH (1) CH538154A (de)
DE (2) DE2166242C3 (de)
DK (1) DK141679B (de)
ES (2) ES398024A1 (de)
FR (1) FR2118771A5 (de)
GB (2) GB1348174A (de)
IT (1) IT945498B (de)
NL (1) NL142869B (de)
SE (2) SE375688B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4448462A (en) * 1980-08-20 1984-05-15 Steiner Corporation Towel dispenser
US4856854A (en) * 1986-06-20 1989-08-15 Duskin Co., Ltd. Towel dispenser
US20040084471A1 (en) * 2002-10-30 2004-05-06 Taylor Antwain D. Folded sheet dispenser having an overfill prevention mechanism
CN101518425B (zh) * 2008-03-25 2011-06-29 羊荣兴 干手器及干手方法
USD796866S1 (en) * 2014-12-19 2017-09-12 Sca Hygiene Products Ab Dispenser
CN111330909A (zh) * 2020-03-05 2020-06-26 袁一心 一种变径螺旋槽式全自动光学零件清洗装置

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53154748U (de) * 1977-05-11 1978-12-05
JPS54104240U (de) * 1977-12-30 1979-07-23
JPS54104238U (de) * 1977-12-30 1979-07-23
JPS54157826U (de) * 1977-12-30 1979-11-02
JPS54104221U (de) * 1977-12-30 1979-07-23
DE3840640A1 (de) * 1988-12-02 1990-06-07 Schumm Erich Kg Handtuch-ausgabevorrichtung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525891A (en) * 1922-08-03 1925-02-10 Leo Fesenmeier Filing and storage cabinet
US2425915A (en) * 1945-06-20 1947-08-19 Steiner Sales Co Dispensing cabinet structure

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1525891A (en) * 1922-08-03 1925-02-10 Leo Fesenmeier Filing and storage cabinet
US2425915A (en) * 1945-06-20 1947-08-19 Steiner Sales Co Dispensing cabinet structure

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4448462A (en) * 1980-08-20 1984-05-15 Steiner Corporation Towel dispenser
US4856854A (en) * 1986-06-20 1989-08-15 Duskin Co., Ltd. Towel dispenser
US20040084471A1 (en) * 2002-10-30 2004-05-06 Taylor Antwain D. Folded sheet dispenser having an overfill prevention mechanism
CN101518425B (zh) * 2008-03-25 2011-06-29 羊荣兴 干手器及干手方法
USD796866S1 (en) * 2014-12-19 2017-09-12 Sca Hygiene Products Ab Dispenser
USD796868S1 (en) * 2014-12-19 2017-09-12 Sca Hygiene Products Ab Dispenser
USD811120S1 (en) * 2014-12-19 2018-02-27 Sca Hygiene Products Ab Dispenser
CN111330909A (zh) * 2020-03-05 2020-06-26 袁一心 一种变径螺旋槽式全自动光学零件清洗装置
CN111330909B (zh) * 2020-03-05 2022-03-22 袁一心 一种变径螺旋槽式全自动光学零件清洗装置

Also Published As

Publication number Publication date
ES398024A1 (es) 1975-03-01
DE2166242C3 (de) 1975-02-13
DE2166242B2 (de) 1974-06-27
JPS524222B1 (de) 1977-02-02
GB1348174A (en) 1974-03-13
IT945498B (it) 1973-05-10
DE2161188B2 (de) 1974-05-02
ES425369A1 (es) 1976-06-16
DK141679B (da) 1980-05-27
DE2161188C3 (de) 1974-12-05
JPS5244266B2 (de) 1977-11-07
DE2161188A1 (de) 1972-07-06
NL142869B (nl) 1974-08-15
FR2118771A5 (de) 1972-07-28
SE375688B (de) 1975-04-28
SE371098B (de) 1974-11-11
NL7116756A (de) 1972-06-20
GB1348173A (en) 1974-03-13
DK141679C (de) 1980-12-22
JPS5156368A (de) 1976-05-18
DE2166242A1 (de) 1973-06-20
BE776841A (fr) 1972-06-19
CH538154A (de) 1973-06-15

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