DE2420490C3 - Towel dispenser - Google Patents

Description

The invention relates to a towel dispenser as set out in the preamble of the main claim Genus.

With towel dispensers of this type, a box or cabinet becomes a predetermined one Towel length issued, with the user pulling on the hanging loop and uses the dispensed clean towel section to dry off, while an already used one Towel section is pulled into the box.

In the previously known towel distributors, there was a supply roll in a box or cabinet clean towel in the form of a towel strip up to 45 m long. This supply roll was rotatably mounted in the box in a suitable manner so that towel sections can be removed from the roll.

could be pulled. With such towel distributors becomes bare towel generally hanging down at the front of the box in the form of a Sling issued, with the pre-cier part of the towel sling a user on a saw; called point of use is available, while the rear part of the towel loop is extends upward into the junction box through a suitable opening, which is at the bottom Part of the distribution box is provided close to its rear wall. With these towel distributors, the same as the applicant's earlier invention described in US Pat. No. 3,502,383 and that of this Patent corresponding to DT-AS 17 79 282, a section is stored by the user from the towel clean towel in such a way that the user can remove the front part of the hanging Towel loop grasped and pulled down.

The loop of used towel is automatically withdrawn from the point of use when a user has finished drying, so that the unsightly sight of the used towel section as well as avoiding the risk of reusing this section. The order is made so that the next user before pulling out a pure towel section from the device only recorded pure towel and at the same time with this from a memory location in the device pulling up a length of previously used towel so that the noose hanging from the device comes out a front fresh towel part, with at least a part of the rear portion of the Sling consists of used towel located on top and most likely by the user is not detected.

In the towel dispenser according to US-PS 35 02 383 means are provided that cause the used towel section at the same time as pulling out fresh towel upwards, however is pulled more quickly, the withdrawal of the used towel being interrupted when the Length of the towel loop drops below a predetermined minimum value, so that the hanging Towel loop essentially always has the same length. For this purpose had to complicated mechanics could be provided which had a number of disadvantages. This mechanics contained a number of rollers around which the used towel was wound in a winding path has been, with some roles in relation to other roles were movable so that the length of the tortuous path could be changed. With everyone Towel dispensing became part of the used towel in the upward winding path led to a storage roll, while another part in the exposed part of the towel loop was pulled out, shortening the tortuous trajectory, while the movable Rolls have been pulled into a blocking position on the other rolls. The movable rollers remained in these closed days until they have been released by a timer and due to their intrinsic gravity fell out of the blocking layer with the result that the winding path of movement was extended and that used Towel has been pulled from the loop into the housing.

However, users of such devices often found that the length of time available for use The standing towel loop gradually becomes larger or larger as the device continues to be used became smaller as a result of the fact that with the diversity of materials and surfaces of the towels they interact differently with the measuring rollers and the take-up rollers and produce a different slip, while on the other hand the towel material by wetting and dehydration changed its length. For example, if the towel shortens with use or contract, this would limit the amount of towel used, which can be drawn into the tortuous trajectory, limiting the distance over which the movable rollers can fall. During the following towel issues, the length would be of the used towel in the winding path of movement is not sufficient to pull it out a part into the exposed loop to allow and still leave a length to be carried up onto the storage roll can, which corresponds to the amount to be dispensed, so that the dispensing mechanism before dispensing the desired length of the sheer towel would be locked.

On the other hand, if the towel is stretched during use and thus longer, the towel would stretch outside the housing to form a longer hanging loop, as the fall distance for the movable rollers and thus the length of the winding path of movement through the dimensions of the housing are limited.

As a result of such stretching of the towel, or when a user clean the towel from the Pulls out the device without pulling the used towel out of the winding path of movement, it would be possible that during a towel issue, the movable rollers are not in their Blocked position would be moved. Then when the user lets go of the bare towel, the movable ones become Roll back and pull the used towel up into the tortuous path before the user would have the opportunity to stop using the towel.

This device also has the further disadvantage that after the towel supply is exhausted, the mechanics with the moving Ann not falling far enough to the end of the used towel fully into the housing.

In US-PS 19 93 882 a towel dispenser is described with one of a compression spring powered winding mechanism for pulling back the end of the used towel supply. However, this spring-powered device was only intended for the purpose of the latter Part of the exposed noose used to retract the towel, and this device was used not effective during every towel issue. However, this known device did not pull the end of the exhausted towel supply back into the dispenser, but only the end part of the towel loop to the bottom of the device. The person maintaining the device then had to hand the end of the towel from the housing and manually wind it onto the storage roll, after which the spring of the The winder was tightened again by hand.

In GB-PS 11 37 003 a towel dispenser is

device disclosed in which the used towel is collected on a storage roll while at the same time clean towel is dispensed, at which dispensing a coil spring motor was wound, the is connected to a take-up roll, the rotation of which during a towel issue by a Lock is prevented. A user leaves the clean towel after pulling it out of the housing go, the winding roll is released and, under the drive of the spring motor, winds the used one Towel on the storage roll during the next towel dispensing. With this device the user had to constantly adjust the spring force of the device driving the take-up reel-F i g. 4 shows a detail from a side view of the right part of the mechanism in the towel dispenser according to FIG. 1 with the timer device,

F i g. 5 is a vertical section through part of the timer mechanism along line 5-5 in FIG Fig. 4,

F i g. 6 shows a vertical section through the drive mechanism and the coupling mechanism for the leveling roller the line 6-6 in FIG. 3,

F i g. 7 is a vertical section through the spring motor and its connection to the drive roller for collecting the used towel according to line 7-7 in FIG. 6,

F i g. 8 a section from a graphical

As soon as the user stopped pulling a clean display of the drive roller for collecting the used towel out of the housing, then towels with the lugs for making the take-up roll immediately used the used towel
the loop would retract into the housing. the

Users therefore had to be on the fresh towel British patent are also no means provided, which prevent overstressing of the spring motor.

The invention is based on the object of eliminating the deficiency outlined, in particular one To provide control device for the towel dispenser that allows the user to his a connection with the spring motor according to FIG. 7,

9 is a vertical section along the line 9-9

constantly exerting a pull to pull in the ao in the f i g. 7, of the coil spring and the kupp towel loop from the winding mechanism to prevent lungswindung the spring motor in the normal. When setting up according to the above-mentioned rest position before dispensing a towel section indicates,

10 shows a representation of the spring motor similar to FIG. 9 in the tensioned state after a towel has been dispensed and before the timing mechanism is triggered,
FIG. 11 shows a representation of the FIG. 9 similar to

_w spring motor in fully tensioned condition

Can dry off hands without constantly doing a series of hand towels, taking the Kupp pull having to exercise on the towel. lungswindung pulled away from the spring motor housing

This problem is solved by the features specified in the characterizing part of the main claim. Advantageous further developments are characterized in the remaining claims.

The embodiment of the invention includes a powered winder for the used Towel with sufficient capacity to accommodate any stretch of the towel which is sure to completely retract the end of the used towel roll in a simple, more economical and trouble-free execution, and with the length of the to be conveyed on the storage roll Towels during each towel issue

is independent of the accumulated length of the 45 another method of connecting the motor used towel in the housing and in front of the storage spring with the coupling coil,
cherrolle. F i g. 15 is a schematic vertical section

The device and method of operation according to the invention by the towel dispenser according to FIG. 1 dung together with other objects of the invention after removing the right side of the housing, The advantages and advantages are derived from the following 5 ° where the normal position of the main parts of the device The writing and the drawings can be seen, which is shown before a towel issue begins.

- - - - - FIG. 16 shows a representation similar to FIG. 15

internal components in the positions they occupy, when a user pulls the complete towel loop out of the device for use, and before the timing mechanics expired,

Fig. 17 shows a representation similar to Fig. 16, the the components of the device after their return to the

FIG. 2 shows a vertical section through the device 60 normal or rest positions (FIG. 15) according to Ablaui along the line 2-2 in Fig. 1, showing parts of the timer mechanism, with the towel

is shown to show the slip clutch effect,

F i g. 12 one of the F i g. 9 similar illustration, the coil spring has been omitted to the To show configuration of the spring mandrel as well as a friction lining to be provided on the request Inside of the housing, which can interact with the coupling winding,

13 shows a detail from a diagrammatic representation of a first method for combining the motor spring with the clutch coil by means of a rivet,

F i g. 14 one of fig. 13 similar illustration

in fig. 1 to 19 show a first embodiment and in FIGS. 20 to 24 a further embodiment The invention is illustrated in the drawings

Fig. 1 is a front view of a first embodiment of the towel dispenser according to the invention, where the hanging towel loop is shown with broken lines,

Side plate are cut away to show the drive mechanism, and with the lift roller and the coupling mechanics are shown with broken lines,

3 shows the plan view of that shown in FIG Towel dispenser with the cover open

loop back during this return movement is pulled

18 shows an illustration similar to FIG. 17; completely withdrawn into the collecting chamber with a towel loop and the position of the components, di < take them before the next towel issue begins,

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19 shows a representation of FIG. 15 similar to FIG Side plates pivoted forward to insert a new towel supply roll into the roll bed and the path of movement of the towel when loading the device,

20 shows a side view of a second embodiment of the towel dispenser according to the invention in the position of use, with the towel strip under the device in the normal position of use is shown with broken lines,

F i g. 21 is a vertical section through the FIG. 20 shown device, from the right side seen, showing the interior of the device, while the one in the right part of the device parts of the leveling caster and the coupling mechanism are shown with broken lines,

F i g. 22 is a horizontal section through the device along the line 22-22 in FIG Drawing certain parts have been omitted to show the interior

F i g. 23 one of the F i g. 21 similar vertical section through the device, with the trajectory of the towel and its accumulation in the collection chamber is shown, and the

F i g. 24 one of the F i g. 23 Similar representation of the device with the lid open and with the outside pivoted mechanism for inserting a new towel supply roll into the device.

The following will be shown in Figs first embodiment of the towel dispenser according to the invention described. this device largely resembles the older development already discussed, so that only those components are described which are necessary for an understanding of the invention.

The towel dispenser according to the invention is in the form of a generally box-shaped cabinet and is used to dispense a portion of a clean towel 50 from a supply point to a use point, while the used towel portion is conveyed through a collection chamber to a storage point, as in FIGS. 2 and 15 bis 18 is shown. As can be seen from FIGS. 2 and 15, the clean and unused towel is in the form of a storage location 51 in the lower part of the housing 100, with a part 52 being pulled from the underside of the towel roll, through a dispensing mechanism 100 and on a spacer 125 is passed down to a point of use, which towel portion 52 is grasped by a user below the spacer 125 at the side edges 53 and 54. Behind or to the right of the section 52 of the clean towel is a section 55 of used towel, which faces the underside of the housing 100 and is located in a channel 115 on the underside and thus remains hidden, thereby preventing inadvertent contact by a user of the device . From the rear end of the used towel section 55 , a vertical towel section 56 extends upwards into the housing 100 in its rear part via a lifting or pick-up roller 135 and continues in a U-shaped section 57 of used towel, which section 57 extends downwards into a collecting chamber 160 for the used towel and from there aas extends upwards over a breaker 144 , at which point the section 57 unites with a final section 58 which runs to the underside of a storage roll 59 for the used towel, which storage roll 59 in the upper Part of the housing 100 is mounted.

The housing 100 of the device has two side walls 101 and 102 made of a plastic or metal! or from another suitable material, which are generally designed as in

ίο Figs. 1 and 3 shown which side walls are mirror images of each other. The side walls 102 and 102 are connected to one another at the rear edges by a vertical metallic rear wall with the aid of suitable fastening means, such as rivets. The rear wall 104 can be provided with several openings or the like (not shown) which enable the device to be attached to a wall or a frame. The upper and the front part of the housing 100 is closed by a cover 105 , which is preferably made of a metal and has an upper part 106 and a front part 107 , which parts are designed on both sides with side flanges 108 which protrude at right angles and cover the adjacent parts of the side walls 101 and 102 when the lid 105 is closed. A rearwardly directed flange 109 is provided on the lower edge of the cover 105 , while the upper edge of the cover 105 is connected to the upper edge of the rear wall 105 by, for example, a piano hinge 110 .

In the lower part of the housing 100 , a base plate 111 (FIG. 2) is arranged generally horizontally, the rear edge of which is at a distance from the rear wall 104 and the side edges of which are fastened to the side walls 101 and 102. It should be noted that the side walls 101 and 102 extend below the bottom plate 111 and support the downwardly curving members 113 and 114 , which members form the above-mentioned channel 115 between one another.

The front edge of the base plate 111 ends at a substantial distance from the front part 107 of the cover 105 and carries an upwardly projecting flange 121, which continues in an upper and forwardly directed edge in the form of an upwardly sloping strip 122 . From this bar 122 goes down and essentially perpendicular to the

At the level of the bottom plate 111, a spacer 125 holds the section 52 of the clean towel in front of the channel 115 in a position so that a user can grasp the edges S3 and 54 of the section and pull a length of clean towel off the supply roll 51 , as can will be described later. It should only be mentioned that the edges of the used towel section 55 are covered by the curved members 113 and 114 so that they cannot accidentally be touched by the hands of the user. A key-operated lock (not shown) which is connected to links and bolts (not shown) in known designs which cooperate with the cover 105 of the housing 100 and keep it closed can also be attached to the bar 122 .

As shown in Figs. 2 and 3, there are two mounting plates in the housing 100 on both sides

609650/360

130 and 140, which are located close to the side walls 101 and 102. The mounting plate 130 has the structure shown in FIG. 2 and a mounting flange 131 on the rear part, which rests against the rear wall 104 and on this z. B. is attached by means of rivets. The rear part of the mounting plate 130 is provided with an opening in which one end of the lifting or take-up roller 135 is supported. The mounting plate 140 has the same design as the mounting plate 130 with the exception that it is designed to be the same as the mounting plate 130, with 141, 142, etc. denoting those components that correspond to the components identified by 131, 132, etc. on the mounting plate 130 correspond.

The leveling roller 135 is rotatably mounted about a transverse axis between the mounting plates 130 and 140. A sprocket wheel 136 is attached to the leveling roller 135 at a predetermined distance from the mounting plate 140, the hub 137 of which is attached to the leveling roller 135, which gear wheel has the teeth 138 . The mounting plates 130 and 140 also support the aforementioned breaker 144 which is substantially parallel to the leveling roller 135 and is substantially V-shaped in cross-section.

Directly above the leveling roller 135 a pressure roller 145 is arranged in the center thereof, which is preferably dimensioned much shorter than the leveling roller 135 and which is provided at the opposite ends with pins 146 which are rotatably mounted in bearings on two bearing arms 147, which arms on the rear wall 104 of the housing 100 are pivotably attached. When the device is in use, the pressure roller 145 cooperates with the leveling roller 135 and presses the used towel against the leveling roller, so that the towel rests against the leveling roller 135 with friction. Due to its inherent gravity, the pressure roller 145 can press against the leveling roller 135 or, if desired, can be pressed against the leveling roller 135 under the action of a spring mechanism (not shown). The pressure roller 145 can be lifted upwards from the lifting roller 135 by means of the pivot arms 147 in order to enable the towel web to be drawn in over the lifting roller 135 when a fresh towel roll is inserted into the housing, as will be described later.

In the housing 100 there is also arranged a tiltable frame, designated as a whole by 170, which is pivotably supported by the mounting plates 130 and 140. As best seen in FIGS. 2 to 4, the frame 170 has two mutually identical side plates 171 and 172, the shape of the side plate 171 in FIG. 2 and the side plate 172 in FIG. 4 is shown. The side plates 171 and 172 are interconnected by a cross member 174. Also disposed between side panels 171 and 172 is a cross bar (not shown) which cooperates with link 174 and holds side panels 171 and 172 substantially parallel to one another, thereby creating a removable frame 170 .

To attach the frame 170 to the mounting plates 130 and 140 , the side plates 171 and 172 are equipped with pivot pins 178 and 179 which are journalled in the mounting plates 130 and 140 . The side plates 171 and 172 are further provided with outwardly directed handling flanges 176 and 177, with which the frame 170 from the housing 100 is pivoted forward into the position shown in FIG. 19 for inserting a fresh hand towel roll into the housing 100 : can.

A towel dispensing mechanism 180 is carried by the removable frame 170 and forms part of the housing IOC . This mechanism consists of

ίο a measuring roller 181, which is covered on the outside with sand paper or other granular material to prevent the towel from slipping on the measuring roller. The measuring roller 181 can be made hollow and provided with a continuous shaft 182. The left end of the measuring roller 181 viewed from the front is rotatably supported in a suitable bearing (not shown) on the side plate 171 , the left end of the measuring roller 181 extending through the side plate 171 and ar

ao the outside of the plate 171 carries a sprocket wheel (not shown). The right end of the measuring roller 181 is rotatably mounted in a suitable bearing (not shown) on the side plate 172, the right end of the measuring roller 181 extending through the side plate 172 and carries a threaded stop member which forms part of the timing mechanism 250 which will be described later.

Between the frame plates 171 and 172, a guide member, designated as a whole as 185, is fastened in the form of an elongated plate with an L-shaped cross section. This guide member 185 consists of an upright, flat rear plate 186 which has an inwardly inclined portion 187 at the upper end and which ends in the vicinity of the leveling roller 135. The rear plate 186 continues at the lower end in a forwardly extending bottom flange 188 , which the rear end of the front plate 111 over a

predetermined route overlaps. If the housing 100 is in the normal position of use, as shown in FIG. 2, the rear plate 186 runs essentially parallel to the rear wall 104 of the housing 100 and has a predetermined small distance therefrom, whereby an opening 120 is formed through which the used towel is introduced into the housing 100 and guided to the leveling roller 135 can be. In this embodiment, the base flange 188 interacts with the base plate 111 of the housing ICO and closes the lower part of the housing with the exception of the opening 120.

At the upper ends of the side panels 171 and 172 there is arranged a collection and storage mechanism for the used towel 190, which has already been disclosed and the details of which can be seen in FIGS. 2, 3 and 6-8. The collecting and storage mechanism 190 has a collecting drive roller 191 which, like the measuring roller 181, is provided on the outside with a covering of sandpaper or another granular material which prevents the towel from slipping on the roller. The collecting drive roller 191 is designed to be hollow (Fi g. 7 and 8), and its right end (seen from the front)

192 extends through an opening provided with a flange on the side plate 172 and rests in a bearing 196, which can consist of a self-lubricating plastic. The other end of 193 's

Drive roller 191 extends through an opening provided with a flange on the side plate 171 round rests in a suitable bearing (not shown), which also consists of a self-lubricating one Plastic can be made. A shaft 194 extends through the hollow drive shaft 191, which at at one end a sprocket 195 carries the extensions (not shown) on the drive roller 191 through curved slots while the adjacent end of the shaft 194 with a Head 197 is provided, which holds the sprocket 195 at the point of use. The other end of the Drive roller 191 is provided with lugs 198 which are used to connect to a spring motor assembly 300 can be manufactured as will be described later.

A drive mechanism 200 connects the output device 180 to the collection and storage mechanism and in particular the output roller 181 and the take-up drive roller 191 which are drive mechanisms the sprocket on the output roller 181, the sprocket 195 and one connecting these gears Chain includes. For reasons to be explained, the sprocket 195 and the Gear on the output roller 181 has the same number of teeth so that both gears are the same Perform rotation.

Below the take-up drive pulley 191 and near the rear of the side panels 171 and 172 a transverse shaft 2C5 is arranged, which at the opposite ends on suitable Way is stored in the side plates 171 and 172. At the opposite ends of the shaft

205 and inward of the associated side plates 171 and 172, two yoke arms 206 and 216 are close attached to side panels 171 and 172 which extend forward and upward as best from FIGS. 2 and 3 can be seen. The yoke arms

206 and 216 are designed to be mirror images of one another, each Ann being equipped with a bearing 211 is, in which bearings 211 a roll 210 for receiving the used towel is stored. On the yokes 206 and 216 are provided with handles 207 and 217 that protrude laterally outward, with which the yoke arms during the insertion of a fresh towel roll into the housing 100 can be moved. Finally, springs, not shown, are provided that the yoke arms 206 and 216 looking up or clockwise (according to Fig. 2). The yoke arms 206 and 216 are z. B. welded to the shaft 205 so that all parts move together when the Shaft 205 is rotated.

Below the towel roll 210 is a bed 220 for receiving a fresh towel roll, which bed consists of two side panels 221, which are attached to the inside of the side panels 171 and 172, and a rear wall 222, which components together the supply roll 51 from the fresh Pick up a towel. A towel divider cover 230, preferably made of a plastic, is disposed over the supply roll bed 220 and is carried by a shaft 205 and extends downward and forwards to above the supply roll 51 of the clean towel, which cover prevents the used towel inadvertently with the clean towel Towel comes into contact The rear wall 222 of the supply roll bed 220 is located at a good distance in front of the guide member 185 and together with this forms the collection chamber 160 for used towel.
After being placed in the housing 100, the supply roll 51 of the fresh towel essentially assumes the position shown in FIG. 2, the rear part of the roll 51 resting against the front of the rear wall 222 of the towel bed 220, the opposite ends of the supply roll 5J are located between the side panels 221. The front of the supply roll 51 rests on a guide roll 231 which is rotatably mounted between the side plates 171 and 172 immediately in front of the towel bed 220. As shown in FIG. 2, the fresh towel is guided from the lower part of the supply roll 51 behind the guide roll 231 upwards over the measuring roll 181.

On the front part 107 of the cover 105 is a holder (not shown) for a lower roller

2T 235 attached, which is directly on a shaft 236 is mounted freely rotatably parallel to this under the measuring roller 181, which holder also has a pressure roller 240 which is rotatably mounted on a shaft 241 above the measuring roller 181. The axis of the Pressure roller 240 runs parallel to the axis of the measuring roller 181 and the lower roller 235, which pressure roller 240 is pressed by a spring against the portion 52 of the clean towel when the lid 105 is closed.

It is desirable to limit the length of the unused towel that the user can remove from the supply roll 51 by pulling downward on the exposed towel section 52 can, according to which a further towel removal is only permitted after a predetermined period of time shall be. For this purpose, a timing device designated as a whole by 250 is in the housing 100 provided, which in the F i g. 4, 5 and 6 is shown in detail. At the right end of the measuring roller 181 is a laterally protruding locking member 251 and a cylindrical guide member 252 fastened with a thread 253. Outside the ends of the thread 253, the guide member 152 has a control disk 254 with a low control edge 255 and a high control edge 256.

Above the axis of the guide member 252 and slightly behind this is a on the side plate 172 Trunnion 257 attached extending to the right from side plate 172, as in FIG F i g. 5 shown. The trunnion 257 is also carried by a conical plate 258 which has an annular support part 259 which engages the pin 257 between its ends. On the The outer end of the journal 257 is a locking member

260 loosely and pivotably mounted on which a locking plate 261 is riveted or in some other way It is important that the locking member 26C and the plate 261 attached thereto are unmoved the axis of the bearing journal can rotate as well as a «tilting or» Wackek movement with respect to di < Axis of the pin 257 can run. In order to make such a Wackek movement possible, there is Locking member 260 on the reduced part of the bearing pin 257 loosely mounted, with a on Zapfei

5f 257 provided head 263 holds the components together As shown in FIG. 4 can be seen, the locking plate 261 is provided with an upright plate part 266 which has an inwardly directed cushion

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267 as well as a locking clip r 268 which seeks to move this part of the locking member 260 for soot for a purpose yet to be explained.

The locking plate 261 is designed with a downwardly extending arm 269 which carries a suction cup 270 made of soft rubber, the concave side of which is directed downward. A suction cup 271 is arranged in a stationary manner opposite this suction cup, the concave side of which faces the concave side of the suction cup 270. The suction cup 271 is provided with a small air duct (not shown) which allows air to flow into the concave area between the suction cups 270 and 271 to a limited extent after the suction cups have been compressed. The suction cup 271 is attached to a bracket 272 that is attached to the side plate 172 . A needle valve arrangement 274 is also attached to the holder 272 and is provided with an adjusting screw 273 , with the aid of which the effective width of the air duct leading into the suction cup 271 can be changed and the time period which the suction cups need to separate from one another can be determined. The suction cups 270 and 271 as well as the needle valve 274 are not described further since these elements are known per se.

The lower edge of the lock plate 261 carries a relatively short threaded sequence tongue 276, and slightly above the tongue 276 is provided a curved follower surface 278, which cooperates with the above-described control disc 254th Furthermore, a tension spring 279 is arranged between the side plate 172 and the locking plate 261 , which seeks to move the locking plate 261 in the counterclockwise direction (FIG. 4). This tension spring 279 also seeks the locking plate 261 in the position shown in FIG. 5 position shown with broken lines. Due to the action of the spring 279 and the authorized in the lock plate 261 wobbling movement the follower surface 278 may in the normal position (in F i g. 5 shown in broken lines) of the locking plate 261 slide along the control disk 254. If the dispensing mechanism is in the normal operating state after a towel has been used, the locking mechanism is in the figure described and in FIG. 5 solution shown with broken lines.

In this position, the follower surface 278 rests on the deep edge 255 of the cam disc 254, so that the locking plate 261 (g F i. 4) counter-clockwise pivoted, wherein the suction cups 27C · and 271 are separated from each other, while the threaded sequence tongue 276 from the Thread 2S3 of link 252 is pulled out. If, however, a user of the device begins to pull down the pure towel section 52 on the front part of the housing, the rotation of the measuring roller 181 causes the control disk 254 to rotate in the direction of the position shown in FIG. 4, the high edge 256 of the control disk 254 lifting the following surface 278 , the locking plate 261 being pivoted clockwise. The suction cup 270 is immediately moved downwards and pressed against the suction cup 271. The two suction cups 270 and 271 then hold the locking plate 261 in the rotated position until the suction cups run away from each other again, even if the high edge 256 of the control disk 254 later moves away from the following surface 278 again. This initial movement of the locking plate 261 also causes the thread follower tongue 276 to engage the thread 253, the tongue being positioned on the position shown in FIG. 5 is moved into the position shown with solid lines in the position shown with broken lines.

If a length of at most 28 cm is to be output each time a towel is used, the measuring roller can have a circumference of 7 cm, while four threads 253 are provided on the guide member 252. A user starts the pure towel section 52 to move downwards, so the cam 254 rotates with the measuring roller 181, whereby the high edge 256 pivots the locking plate 261 in the clockwise direction (Figure 4) of the control disk 254, whereby the suction cups 270 and 271 with each other are engaged while at the same time the thread follower tongue 276 engages the outermost thread. If the user continues to pull out the clean towel, the measuring roller 181 and the locking member 252 continue their rotation, the thread follower tongue 276 and the locking plate 261 following the thread 253 until the locking plate 261 is essentially at «; the ^; " ^Λ * τ F ^; » 5

The position shown with broken lines has been pivoted out, the sub-part of the locking plate 261 being guided from the control disk 254 to the side plate 172 . Since four threads 253 are provided, the tongue 276 has been pulled to the fourth thread, when the measuring roller 181 completes its next rotation after pulling out 25.4 cm of clean towel, the locking member 251, which has been rotated with the guide member 252, arrives is, with the lower edge of the locking plate 261 in contact, whereby the rotation of the measuring roller 181 is stopped and further withdrawal of clean towel from the housing is prevented. The user can now dry his hands on a clean towel, whereby in normal cases the suction cups 270 and 271 separate again after a while, so that the spring 279 swivels the locking plate 261 counterclockwise on the pin 257 and removes the locking member from the side plate 172 can, after which the locking plate 261 returns to the original position.

Due to the construction described above, if a user pulls less than the full permissible length of clean towel out of the device, the lower end of the locking plate 261 does not reach the position in which it is detected by the locking member 251 , so that no locking occurs. Nevertheless, after the suction cups 270 and 271 have separated from each other again, the locking plate 261 is automatically returned to the starting position by the spring 279 , so that the next time the device is used, the maximum amount of towel can be pulled out.

It is highly desirable that retraction and storage be prevented after a user has pulled out a clean towel section and dried his or her hands on it, that is, during the time the suction cups 270, 271 are separating from one another after being squeezed. For this purpose, the leveling roller 135 is provided with a sandpaper covering or a non-slip outer surface and at the end adjacent to the timing mechanism 250 with a control

4 20 490

clutch 280, which has two diametrically opposed locking edges 281 , as can be seen from FIG. A control lever 282 associated with the control clutch 280 is pivotably attached to the side plate 130 , as shown at 283 , which lever has an upwardly extending finger 284 which can be engaged and disengaged with respect to the locking edges 281 on the control clutch 280 . The other end of the lever 282 cooperates with a push rod 285 (FIG. 4) which is actuated by the locking plate 261 and in particular by the cushion 267 . The bumper 285 is mounted in two flanges 286 and 287 provided on the side plate 172 , which are provided with aligned openings through which the bumper is passed, which has a head 289 at the lower end that attaches to the locking clip 289 and the pad 267 acts. The upper end of the bumper cooperates with an abutment surface 228 provided on the end of the control lever 282 opposite the finger 284 .

If the high control edge 256 causes the locking plate 261 to rotate clockwise (FIG. 4), the bumper 285 is in the position shown in FIG. 6 is lowered, the longer and heavier right arm of the control lever 282 on the right side of the pivot pin 283 sinks with the result that the finger 284 is moved upwards and engaged in one of the locking edges 281. Of course, while a towel section is being withdrawn from the housing 100 , the control coupling 280 rotates in the direction of the arrow in FIG. 16 so that the finger 284 does not impede the rotation. After a user has pulled a towel section out of the device, a certain rotation of the control coupling 280 in the clockwise direction pushes the finger 284 against one of the locking edges 281, the rotation of the braking roller 135 being stopped. At the time the suction cups 270 and 271 separate so that the spring 279 can pivot the lock plate 261 clockwise (Fig. 4), the push rod 285 is raised and pivots the control lever 282 clockwise (Fig. 4). 6), disengaging finger 284 from locking edges 281 and releasing lift roller 135.

In FIGS. 7 to 14, a spring motor, designated as a whole by 300, is shown, which according to FIG. 3 is arranged at the right end of the collecting drive roller 191 . The spring motor 300 has a cup-shaped housing 301 with an annular end wall 302 , which is provided at the edge with an outwardly protruding cylindrical side wall 303 , and furthermore the annular end wall 302 has a recessed hub part 304 with an opening arranged in the middle through which the shaft 194 of the collecting drive roller 191 is passed. The annular end wall 302 is further provided with two curved slots outside of the hub portion 304 and concentric therewith, which receive the complementary shaped lugs 198 of the adjoining reduced end 192 of the collecting drive roller 191 and hold the housing 301 thereon. In the housing 301 there is arranged a bushing 305 which surrounds the shaft 194 and which is provided at the inner end with an annular flange 306 which is inserted into the recessed hub part 304 of the annular housing 301 and fastened there.

The socket 305 is surrounded by a designated as a whole with 311 mandrel demonstration one on de bushing 305 freely rotatable hub portion 311 and an annular cover flange 312, de from the hub 311 protrudes at the outer end radially NaCl outwardly and a small margin of the annular housing 301 has, which cover flange 312 is provided on the circumference with a short cylindri retaining flange 314 which di <

ίο the cylindrical side wall 303 of the housing 301 slightly overlaps and together with this forms an essentially closed housing for the spring motor. It should be noted, however, that there is clearance between the mandrel retaining flange 314 and the side wall 303 so that the housing is movable with respect to the mandrel, as will be described later. The hub 311 of the mandrel 310 has a generally helical controlling outer surface 315 , as best shown in FIG. 12 can be seen, as well as a stop edge 316. In the housing 301 there is arranged a spiral spring, denoted by 320 , which extends around the mandrel hub 311 , as shown in FIG. 9 shown. The inner end of the spiral spring 320 is designed with a loop or a hook 321 which rests on the stop edge 316 of the mandrel hub 311 . The spring 320 is also preformed on one and a half turns so that these turns lie firmly against the mandrel hub 311 and hold the hook at the point of use. This is followed by four or five turns, which are made loosely, and finally a relatively large number of tightly wound turns, which rest firmly against the cylindrical side wall 303 of the housing 301. The outer end of the coil spring 320 is z. B. fastened by means of a rivet 326 at one end of a coupling spiral 325 , the length of which is slightly smaller than the circumference of the cylindrical side wall 303 , which spiral rests firmly against the side wall by friction. The friction between the coupling coil 325 and the inside of the housing 301 depends on the tension of the coupling coil and this on the strength of the spring wire used and on the extent to which the wire is spirally wound. If desired, a friction lining can be provided on the inside of the vertical side wall 303 in order to increase the friction acting on the coupling spiral 325 , as shown in FIG. 12.

Although, as shown in FIG. 13, in the preferred embodiment of the device, the coupling spiral 325 is connected to the spiral spring 320 by a rivet, other means can of course also be used for this purpose, for example as shown in FIG the outer end of the spring 320 is designed with a narrow neck part 328 and a wider tongue 329, which is inserted into a correspondingly designed slot 327 at the adjoining end of the coupling spiral 325. For this purpose, the coupling spiral 325 must be rotated by 90 ° with respect to the spring 320 in order to be able to insert the tongue 329 into the slot 327 , after which the two parts are again aligned in a straight line with one another, as shown in FIG. 14, and thereafter the parts are inserted into the housing 301 , in which the spring 320 can no longer detach from the coupling spiral.

609 650/360

A sprocket wheel 330 is attached to the mandrel 310 and surrounds the bushing 305 in a freely rotatable manner. The adjacent The end of the shaft 194 is provided with a thread onto which an annular disk is placed and a nut is screwed, which holds the components together, as shown in FIG. To that Sprocket wheel 330 and around the sprocket wheel 136 on the leveling roller 135, a chain is guided, like best from FIGS. 2 and 3 can be seen.

If, during operation, the collecting drive roller 191 is rotated counterclockwise (FIG. 2), ro becomes at the same time the annular housing 301 of the spring motor rotated in the same direction. Because of the frictional engagement the spiral coupling 325 with the annular housing 301 becomes the spiral coupling 325 and thus the outer turns 326 of the spiral spring 320 of the housing 301 in the same, which are firmly abutting one another Senses taken away. However, when the collecting drive roller 191 rotates, rotation of the Lifting roller 135 (according to FIGS. 2 and 9) in the counterclockwise direction prevents the above control finger 284 described engages in the control clutch 280, as will be described later. Accordingly There will also be a rotation of the lift roller 135 via sprockets 136 and 330 and via the chain 335 connected dome 310 counterclockwise prevented. Accordingly becomes when the collecting drive roller 191 and the spring motor housing 301 turn counterclockwise rotate, the coil spring 320 coiled or stretched, with for each revolution of the collecting drive roller 191 one of the loose turns

323 of the spiral spring is firmly wound onto the mandrel hub 311, while at the same time an inner turn the tightly fitting outer turns

324 is detached, so that at the end of a towel issue, the spiral spring 320 is in the Fig. 10 is the state shown. If the leveling roller 135 is released, it is tensioned by the Coil spring 320 driven counterclockwise.

With reference to FIGS. 9 to 11 and to the schematic representations in FIGS. 15 to 19 The operation of the device 100 according to the invention and the spring motor 300 will now be described. 15 shows the components located in the housing 100 in the normal rest position before a towel removal, wherein from the supply roll 51 a pure towel section 52 over the Measuring roller 181, over spacer 125 and then through channel 115 and through opening 120 up over the section 56 over the leveling roller 135 (under the pressure roller 145, which is in the 15 to 18 has been omitted) and down over the sagging portion 57 into the collection chamber 160 for used towel and up over the breaker 144 and over the section 58 runs down to the lower part of the used towel storage roll 59, which is placed on the Roll 210 is wound up. At this time, the spring motor 300 is in the position shown in FIG. 9 shown Initial state, with the towel web resting against the base plate 111. That already used Towel remains hidden from a user so that there is no danger that a user will already used towel section recorded. The timing mechanism 250 is located in the Fig. 15 shows the operating state in which the two suction cups 270 and 271 are separated from one another are. The bumper 285 is in the normal down position and releases the control lever (282), so that the components concerned assume the positions shown in FIGS. 6 and 15.

The next user of the device 100 now detects the side edges 52 and 54 of the unused one Towel section 52 behind the spacer 125 and pulls this down, so a clean towel from the supply roll 51 down around the measuring roll 181 over the spacer 125 pulled away downwards and the sections 55 to 57 of the used towel out of the housing 100 through the opening 120, the towel loop

is extended accordingly under the housing 100. The components now take those in FIG. 16 positions shown. When pulling the used towel section out of the housing 100 is also the collecting mechanism 190 for

ao winding the used towel sections 57 and 58 on the roll 59 in operation.

When the unused towel is pulled down, the timing mechanism is also activated immediately 250 put into operation, the mode of operation of which has already been described. As already stated, the two suction cups 270 and 271 pressed together and held together for a predetermined time, while the user is drying his hands on the towel section 52 below the housing 100. The control coupling 280 of the leveling roller 135 is now with the control lever 282, the same the finger 284 (Fig. 16) with one of the locking edges 281 in engagement, preventing the lift roller 135 from rotating back. The leveling roller 135 prevents therefore a clockwise rotation of the sprocket wheel 330 and the dome 310 via the chain 335 (see Figs. 9 and 16).

While the user removes unused towel from the supply roll 51 over the measuring roll 181 subtracts, the collective drive roller 191 is also via the Ketienzahnrad 195, via the gear on the Measuring roller 181 and driven via the chain 201, which components form the drive mechanism 200. According to the invention, the collecting drive roller 191 is preferably of the same diameter like the measuring roller 181, and the sprockets on these rollers have the same number of teeth, so that the collecting drive roller 191 can accommodate approximately the same length of used towel seeks how measuring roller 181 dispenses clean towel, which length with each dispensing preferably 28 cm amounts to.

When the user of the device cleans the towel from the supply roll 51 into the hanging If the loop pulls off, the clockwise rotation of the collecting drive roller 191 the coil spring 320 is wound or tensioned in the manner described above, as a rotation of the leveling roller 135 in the counterclockwise direction prevented by the engagement of the control arm finger 284 in the coupling 280 ' will. When pulling out an unused towel section from the device, the user pulls at the same time of the used towel section 57 located in the collection chamber 16® from which extraction is made possible by the clockwise rotation the leveling roller 135 in the direction of the arrow shown in Fig. 16 of the fingers 284 via the control

20th

^k f ^ ^ KSSS ^ HSLiirSS ^ SL ^ ⁿ , ^UtZte towel from section 57 on the food

the timer suction cups 276 undi 271 is used towel from the towel loop and wnemander öamen so pivoted _{d! e} spring 279 sling particularly exposed between the barrier plate 261 un anticlockwise, wherein the and the lift roller 13S, however, no further bumper 285 in the Eingnfi with the member 288 arranged smoothing members. It has been shown that the control lever 282 (Fi g 6) brought and the Fin- «because of the height of the leveling roller 135, the towel 284 ναι the locking edge 281 is tied by itself in the sections 55 and 56 with the result that the The leveling roller 135 seeks to smoothen released so that further smoothing elements are not required and the components from the m of FIG. 16 are required. The absence of smoothers shown position to the ones shown, can before the lift roller 135 further results in a disfigured position move in the Fig. 17 _{15 utilization of the capacity of the Fed} ermotors 300 at the

Once the leveling roller 135 has been released, driving the leveling roller 135

By disengaging the control lever 282, if the towel clutch 28§ is removed, the mandrel 310 of the supply on the tube 51 is exhausted at the same time, so the spring motor 3 is set free and drives through the free end of the towel pulled out of the housing 100 at the tensioned spring 32 via the chain 335 the leveling roller ao the front end and hangs freely from the housing 100 on the arrow for the lifting of the used towel of the place of use during the 135 in the direction of the timing period shown in FIG. 17 . After the end of the loop, the loop enters the collecting chamber 16. During the specified period of time, the lifting roller 135 at the diameter of the lifting roller 135 is preferably larger when disengaging the locking lever 282 from the clutch than the diameter of the collecting a ₅ 280 is released in the manner described above, such as the drive roller 191, while the sprocket 136 is off 17 can be seen. The spring motor 300 pulled completely on the leveling roller 135 equipped with fewer teeth then drives the leveling roller as the gear 339 on the collective drive 135 in the direction of the roller 191 shown in FIG The end of the towel web is pulled back so far into the end of a towel dispenser that the 30 collecting chamber 160 is completely withdrawn, so that it can drive the leveling roller 135 over a larger number of revolutions. that its capacity in the fully tensioned state shown as the gathering drive roller 191 during a hand Fig. 11 performs cloth dispensing. Due to this fact, it is sufficient to be able to completely retract the end of the towel roll and, because the leveling roll 135, a larger path. This cam knife has than the collecting drive roller 191, the capacity of the spring motor 300 is completely independent spring motor 300 is able to insert a larger length of towel into the collecting chamber depending on the length of the used towel in the Ab-160 than section 57 in the collecting chamber 160, which length is output would. This is necessary for the reason that the towel is stretched during use, because the exposed loop of the hand can not only be bulky. With the invention, the length of the pure towel dispensed is therefore able to withstand two essential shortcomings of known towels, but also eliminates the devices dispensing from the collecting chamber, namely the lack of compensation for the extended length of the used towel, which also involves stretching or contracting the capacity of the spring motor the stretching or towel web and lack of reliability in extending the towel web in use equates to complete retraction of the end of the towel. These are achieved with the invention without

The spring motor 300 is preferably set up in such a way that the device needs to be dimensioned larger, so that the spring is tensed more than relaxed during each towel-off and without a user of the device, even if the winding mechanism has to overcome a Extension of the hand towel path taken into account 50 A particular difficulty arises when the is so that the spring 32 is always more tightly wound together during the subsequent remainder of the towel on the supply roll 51 of small towel dispensing than the length which is required for one completely. After a predetermined number of manual turns of the measuring roller 181 is required. In the towel issue, preferably ten or more, the special one is fully tensioned during the first turning spring 32 and when the measuring roller ItI is hung, the control disk 254 is in the state shown in FIG of the locking plate 261 engages the spring and holds the locking plate 261 in a position ImI, from the coupling spiral 325 from the inside of the device which seeks to pull the locking plate into the housing 301 shown in FIG F i g. 11 cannot return to the normal position. The time seeing is. Here, the contact surface between the transmission mechanism 25 · causes a deceleration of the two elements is reduced and the friction of the leveling roller 135 is reduced by actuating the shock brake, so that the coupling rod 285, the coupling 28 · and the lever arm spiral 325 on the inside of the housing 301 corresponds to 282 (cf. also FIG. 6). As a result, a three-way glide can occur. This slipping clutch arrangement prevents the leveling roller 135 from being over-tensioned in the counterclockwise direction (according to prevents overstressing of the spring 32, while 65 in FIG. 16), so that this end of the towel which is used, on the other hand, the fully tensioned end of the towel, will not hold back into the housing until the towel supply is exhausted. can pull as described above. To this end

If the load is being used while a towel is being dispensed, a locking clip 268 is provided to

Measuring roller 181 is released. After completion of the first rotation of the measuring roller 181, the control disk 254 is no longer in engagement with the follower surface 278, so that the timing device 250 can operate the leveling roller in the normal manner. In other words, the locking _{clip 268 ensures that the leveling roller I 3} S is released and the towel end can be drawn into the housing 100 if the length of the hand towel is insufficient to enable the control disk 254 to be released from the follower surface 278.

After the towel supply on the roll 51 has been exhausted, the housing 100 can be opened by lifting the cover 105 and the frame 170 can be swiveled out into the position shown in FIG. The m of the collecting chamber 160 located HeS ofl _e US hSS i \ ^ i ^{dic outside} * * "peicherrol e 59 7 f 'f" ^ka " ⁿ ' ^{SO that on dil}

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Towel roll 51 inserted, and the free end of the Towel is over the guide roller 231 the measuring roller 181, then down, at Abs'tandsghed 125 passed and then up into the opening 120 to the leveling roller 135. The free end def Unused towel is then pulled backwards over the leveling roller 135 for what purpose the pressure roller 145 is swiveled nadfobe'n S. does not interfere with the process described. After that, the free end of the unused towel passed over the smoothing member 144 and wrapped around the towel collection axis 210, It should be noted that the TeileiKl 230 is in the correct position b An important feature of the invention is included therein see that the device of the housing 100 and the mechanics located in it an improper Prevents introduction of the towel supply into the housing 100. How in particular the Fi g. 19 can be seen, must when pulling the front end of the towel into the open " opening 120 on the rear part of the housing 100 the leading end is properly passed between the leveling roller 13S and the pressure roller 145 because the inclined end 187 of the FührSk des 185 prevents the towel rail from passing through the leveling roller 135 while the bearing arms 147 of the pressure roller 145 passing the towel web upwards behind the pressure tube " impede.

After inserting a new, unused towel in the device is vomigweise fc ^ i first user a free ttmdmchschnnge left under the case, and further preferably throw a slack in the case Loop 57 is left as shown in Fig. 5, the during the first towel dispensing

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designed and has two upright side walls 401 and 402, a top wall 403, a rear wall 404 and a cover 405 which is pivotably attached to the top wall 403 by means of a piano hinge 410 and which is provided with side flanges 408 , which are connected to the side walls 401 and 402 are located substantially in one plane and close the device when the lid 405 is closed, as in FIG. 20 shown. The lid 405 is provided with an inwardly directed flange 409 at the lower end and further on the inside approximately midway between the upper and lower ends with a smoothing member 406, the purpose of which will be described later.

The towel dispenser in the device 400 is essentially the same as the device in the device 100, as described above, the device provided in the housing 400 is only described as far as is necessary to understand the operation of the device and the differences between the device 400 and 100. Between the side walls 401 and 402 , a dividing plate 411 is attached to the latter approximately in the lower third of the height of the device, which is arranged essentially horizontally and is configured at the rear end with an upright flange 412 which is at a distance from the rear wall 404. The divider plate 411 is provided at the front end with an upright flange 414 , which continues on a part 415 inclined upwards and forwards.

In FIG. 22 two bearing members 430 and 440 are shown for the mechanics, which are arranged on the left and on the right side of the device 400 and which are located close to the side walls 401 and 402 . The bearing members 430 and 440 are secured in the device 400 in substantially the same manner as described for the bearing members 140 and 130 of the device 100 . On the rear parts of the bearing members 430 and 440 openings are provided in which the opposite ends of a lifting and pulling roller 435 are mounted, which is similar to the roller 135 described above. A sprocket 436 is attached to the retraction roller 435 a predetermined distance from the inside of the bearing member 440. A pressure roller 445 , which is similar to the pressure roller 145 in the device 100 already described, is mounted directly above the pull-back roller 435 , essentially in the center thereof.

A tiltable frame, designated as a whole as 470 , is also arranged in the device 400 and is mounted pivotably in the bearing members 430 and 440. As best shown in FIG. 22 can be seen, the frame 470 comprises two substantially mirror-image identical side plates 471 and 472, which preferably (not shown) by means of cross-members are connected to each other, holding the side plates of the frame 470 substantially parallel to each other. To support the frame 470 in the bearing members 430 and 440, the side plates 471 and 472 are provided with bearing journals 488 and 489 which are mounted in the bearing members 430 and 440. Between the frame side panels 471, a protective member, designated as a whole at 475, is attached to an upwardly curved rear portion 478 which continues into a downwardly curved rear end portion 479 which is located close to the rear wall 404 of the housing 400 from the front Portion 476 ' of protective member 475 extends inward from smoothing member 406 and flange 486 which is provided at the top with an outwardly protruding smoothing flange 487 which is located over smoothing member 406 when housing cover 405 is closed.

A portion of the 4GO device and the towel dispenser carried by the removable frame 470 are provided.

ίο direction 480 has a measuring roller 481 which is similar to the measuring roller 181 described above. The measuring roller 481 is supported in the frame 470 so that it is located in front of the flange 414 of the divider plate 411 and under the inclined portion 415 when the apparatus is normally closed, as shown in FIG. Preferably, a pressure roller 540 is provided which is rotatably supported between the bearing members 43C, and 440 and the bit is located untei and behind the eject roller 481 and presses the drawn off from the supply roll 51 clean towel roll to the 481st Between the frame side plates 471 and 472 there is attached a curved guide member 485 , the upper end of which is located close to the leveling roller 435 , while the lower end is located inward of the flange 412 on the divider plate 411 and slightly overlaps the flange when the device 400 is normally closed, as shown in FIG. 21 shown.

At the upper end of the side plates 471 and 472 there is a storage and storage mechanism 490 for used towel with a collecting drive roller 491 , which is similar to the collecting drive roller 191 already described. The collecting drive roller 491 is arranged on the frame 470 immediately above the front part 476 of the protective member 475 and behind the flange 486 thereof. A drive mechanism 500 prevents the dispensing mechanism 480 with the collecting and storage device 490, which drive mechanism consists of chain gears on the rollers 481 and 491 and a chain 501 connecting them, like the mechanism of the device 100 already described.

From the Sammelantrier srolle 491 extend to the inner sides of the frame side plates 471 and 472 upwardly and rearwardly a rear channel member 506 and a forward channel link 511 which extend two limbs in parallel to each other and together form a channel for receiving the adjacent ends of a bearing roller 510 for processed Pick up a towel that is similar to the bearing roll 210 in the device 100 already described. The rear channel member 506 preferably extends upwardly beyond the top and front channel members 511 , thereby facilitating the insertion of the bearing roller 510 , as will be described later. The channel members 506 and 511 are arranged so that after the storage roll 510 has been inserted, the outside of the storage roll 59 of the used towel wound on the storage roll 510 is always in contact with the collecting drive roll 491, the

Bearing roller or axle 510 up in the channel

slides when the diameter of the storage roller 59 of the towel being used gradually increases in size.

Below the divider plate 411 is a bed 520

arranged for storing a supply roll consisting of pure unused towel, which storage bed ends in a flat and upwardly extending rear wall 522, which consists of an all-

609 £ 50/301

25 26

The operation of the towel dispenser 40 (

front end with a depending spacing is essentially the same as the operation

member 525 is provided. The supply roll bed 520 of the device 100 as described above. Take there;

further includes two side panels (not shown) shown in FIGS. 21 and 23 shown standards

on the on the inside of the side panels 471 5 a malposition, so is the off clean

and 472 are pivotably mounted at 526. The towel existing supply roll Sl in the supply

Hand towel roll bed 520 naturally also serves as a roll bed 520, and the clean towel rail

to close the lower end of the device runs up between the pressure roller 540 and

housing 400 and forms its bottom wall. Be the dispenser roller 480 through over the last

the supply roll bed 520 is found in the roll named in FIG.

Fig. 21 normal use position shown, cut 52 in front of the spacer 525 and from there

so the back wall 522 is up from the back wall 404 against the bottom of the towel bed

of the housing 400 located somewhat away, runs in 520 into the opening 420 behind the guide member

essentially parallel to the rear wall and forms to- 485 and then between the leveling roller 435 and the

with this an opening 420 through which the 15 pressure roller 445 passes forward on the smoothing

used towel inserted into the housing 400 processing edge 477 past and behind the smoothing

will. flange 406 in front of the smoothing flange 487 and

As can best be seen from FIGS. 21 and 23, then to the storage roll 510 for used towel. That is, the divider plate 411 together with the work sequence in the device 400 during a towel supply roll bed 520 forms an output as a whole with 450 but is exactly the same as the lower towel chamber summarized, and furthermore, with the representation in FIGS 15 to 18 use the divider plate 411 together with the frame 470.

the guide plate 475 and the guide member 485, as best seen in FIG

there is a collecting chamber in the middle for loading the used towel from the leveling roller 435

used towel, which chamber is labeled 460, is pulled upwards, so the towel collects

net is. Furthermore, the protective member 475 forms together in the collecting chamber 460 above the divider plate

men with the top wall 403 of the housing 400 411 and in front of the guide member 485, the

an upper collecting and storage chamber for the usable divider plate 411 and the protective member 475 prevents,

tes towel, which chamber denotes 465 that the accumulated used towel with the

is. The entire drive mechanism for the device is 30 drive mechanism 500 or with the clean, un-

in a department between the two towels used towel of the supply roll in contact

chambers 465 and 450 and passed around the collection chamber.

460 for used towel around, so after exhaustion of the clean supply that the entire mechanism is above the towel, the end of the towel is pulled from the unused towel supply roll 51 35 lifting roll 435 into the collection chamber, and below the storage roll 59 for used as already described for device 100. Then there is a towel. This stacking arrangement of the chamber opens the housing 400 by a maintenance person with the lifting of the cover 405 provided for clean towel and swivels the frame division at one end of the housing and with men 470 forwards, as shown in FIG. 24, 40 After this, the remainder of the storage space in the chamber 460 is divided at the other end of the housing, with the used towel being wound onto the storage, the mechanism between these two compartments, roll 59 and the storage roll 510 being arranged , a relatively flat channel members 506 and 511 lifted out. Then provide housing, the depth of which is from the front wall of the used towel roll wall to the rear wall only from the largest diameter 45 59 removed from the storage roll 510 and inserted again into the knife of the storage roll for used towel 59 channels, which insertion is determined by the fact that this storage roll is normally facilitated by the fact that the rear channel member 506 has a larger diameter than the tip is elongated upward. The towel bed 520 is the catching diameter that contains the clean towel at the point 526 forwards into the position shown in the supply roll 51, since the storage roll 50 is pivoted in FIG. 24, so that 59 is wound more loosely. Put a new roll of towels in the bed

The remaining part of the housing 400 can be used. The front end of the towel web mechanism is essentially the same as the mechanism already written upwards behind the dispensing roller 481 in the housing 100 of the first past it downwards in front of the Ab embodiment of the invention. In particular, 55 stand member 525, then, provided upwards behind which the lift roller 435 at the right of FIG. 22 towel bed 520 past the guide member 485 end with a pilot clutch 580, the past described between the lift roller 435 and the other above by Control clutch 280 resembles, press roller 445 through, then cooperates forwards to and with a control lever 582 , the smoothing members 477 and 487 past to the bearing the control lever 282 described above is similar to 60 roller 510 and wound onto it End of the collective-described arrangement of the components in the interior drive roller 491 is a whole with 600 designated the device 400 promotes the proper Einneter spring motor with an annular housing pulling the towel and at the same time prevents 601, a casing 610 and a sprocket wheel the towel improperly threaded is attached to Im 630 , which has the same structure 6 ₅ especially nderen prevents Führungsdied 485 that, as the spring motor 300 as described above, the front end towel is passed under the lift roller 435 home 100. The two chain COGS 630 and 436 in the overall, while the rear end 479 are interconnected by chain 635th of the protective member 475 and the bearing arms of the

pressure roller 445 a continuation of the front end of the towel upwards behind the pressure roller 445 prevent past.

After the completion of the drawing of a new towel, the towel bed 520 becomes normal upright position and the frame 470 pivoted back into the housing, after which the cover 405 is closed so that the device 400 is ready for use.

From the foregoing it can be seen that the invention provides a towel dispenser was created using a length of towel that is equal to the length of the towel used for each Use of dispensed clean towel is to be wound on a storage roll of whatever length of the used towel wound on the storage roll is completely independent of the Amount of used towel accumulated in the collection chamber.

Furthermore, a power-operated winding mechanism is provided in the device mentioned, the capacity of which is sufficient to ensure that the used towel is completely wound up at the end of each towel dispensing, despite possible stretching or lengthening of the towel web during use, and furthermore the end of the towel web is definitely in the collecting chamber completely withdrawn when the towel supply is exhausted, the length of the used towel pulled up from the loop at the end of each towel dispenser being independent of the length of the used towel accumulated in the collection chamber.
With the invention, a new towel dispenser was also created in which no smoothing members are provided between the exposed towel loop and the lifting or winding roller, so that the towel can be freely and unhindered

ίο can move the leveling roller, so that the power is kept low, which is consumed by the winding mechanism to completely retract the used towel.
The invention further provides a power-operated winding mechanism with a constant torque exerting spring, which is gradually fully wound or tensioned with several and successive towel issues, which mechanism contains a slip clutch that prevents over-tensioning of the spring.

Finally, with the invention, a towel dispenser was created that has all of the advantages mentioned and still has a flat and compact structure, the overall depth of the Device from the front wall to the rear wall solely from the largest diameter of the fully wound, used towel existing roll is limited.

In addition 9 sheets of drawings

Claims (10)

Patent claims: 1. Towel dispenser with a continuous towel loop attached to a housing depends, which device has a supply roller and a measuring roller with a drive roller for a take-up roll for wrapping used towel in connection, which drive roller is also in communication with an energy storage device that is being used Pulls the towel back into a collection chamber after each towel issue, as well as funds for controlling the operation of the energy storage device, characterized in that the control means includes a timing mechanism (252) known per se, which determines the time periods determine between successive operations of the measuring roller (181) and the Put energy storage device (194, 300) into operation that the energy storage device (194, 300) the take-up roll (59) for winding used towels from the collection chamber (160) starts up, while at the same time used towel from the loop (55) under the Housing (100) withdrawn and into said chamber (160) after the expiry of the Timing Mechanics (252) is introduced for a certain period of time. 2. Apparatus according to claim 1, characterized in that the timing mechanism (252) the Rotation of the measuring roller (181) and said drive roller (191) ended after a predetermined one Length of bare towel has been issued, and the idle of said rolls for a predetermined period of time maintains. 3. Apparatus according to claim 1 or 2, characterized in that the energy storage device (194, 300) contains a power-operated motor (300) arranged in the housing (100), via a coupling (280) with a leveling roller (135) in connection, and that one Drive mechanism (200) is provided which connects the measuring roller (181) with the drive roller (191) as well as with said motor, and that the timing mechanism (252) said Clutch controls. 4. Apparatus according to claim 3, characterized in that said coupling (280) in engaged state allows rotation of the leveling roller (135) in a direction of rotation in which Towel conveyed from the used towel collection chamber (160) to the use position while the leveling roller (135) is prevented from rotating in one direction of rotation, transported in the towel from the position of use into the collection chamber for used towel will. 5. Apparatus according to any one of claims 1 to 4, characterized in that said motor (300) is driven by a spring and an input member (302) for tensioning the spring and an output member (314) connected to the leveling roller via said coupling (280) (135) is in communication, and that a second coupling (325) between the input and the output link is provided, which has a clamping nen the spring allows up to a certain degree and then a further tensioning of the Spring prevents that in successive operations of the measuring roller (181) finally the Spring (320) in the motor is fully wound and tensioned so that when the end of the The path of the clean towel is exposed under the housing, the motor has enough energy, around said end into the used towel receiving collection chamber to be able to. 6. Apparatus according to claim 5, characterized in that the driven by a spring Motor (300) generates a substantially constant torque. 7. Apparatus according to any one of claims 1 to 6, characterized in that the control coupling (280) is operated by a control lever (282) controlled by the timing mechanism (285). 8. Apparatus according to any one of claims 1 to 7, characterized in that between the leveling roller (135) and the drive roller (191) a smoothing member (144) is arranged, which used the Towel smooths before it is conveyed onto the storage roll (59), and that the path of movement of the used towel between the Gobrauchsstelle and the leveling caster unhindered so that the towel can move freely between them. 9. Apparatus according to claim 8, characterized in that the towel smoothing member (144) has two straight edges over which the towel is led away from the collection chamber (160) and directed to the storage roll (59). 10. Apparatus according to any one of claims 1 to 9, characterized in that the front and the Rear wall (405, 404) of the housing (100) have a distance from one another that is somewhat is larger than the diameter of a full roll (59) of used towel in the vertical aligned with the supply roll (51) of clean towel, and that said Motor and the collection chamber (460) above the one consisting of the clean towel Roll (51) and below the existing of the used towel roll (59) is arranged.