EP1191871B1 - Formation of a towel loop in a hand towel dispenser - Google Patents

Abstract

The aim of the invention is to provide a hand towel dispenser that provides the user with a hand towel loop (4) that is easy to handle. To this end, an additional loop (1) is formed inside the dispenser (100). When the hand towel is pulled out, said additional loop almost disappears and then re-forms after the towel has been used. A spring-mounted roller (2) is provided for this purpose. Said roller releases temporarily used towel (T') for forming a loop, in order to avoid using an unnecessarily long piece (T) in the loop (4).

Description

The invention relates to a towel dispenser according to the preamble of claim 1.

In notoriously known towel dispensers it becomes economical Using the cloth towel sheet, this is distributed in portions; it also becomes one for drying hands when forming suitable cloth loop from the one already used Part of the fabric rolled back. This reduces towel consumption is reduced by almost half.

The technical implementation in towel dispensers prepares Difficulties because the wound roll used cloth increases in diameter with increasing use and because it also switches between a forward movement and a backward movement of the winding axis is required is. As a result, donors enter this area often problems; they tend to block.

From EP-A1-0 309 208 is a schematically shown Dispenser known according to the preamble of claim 1, wherein used to tighten the cloth loops gravity did not load rollers or rollers, or in side guides, are stored and when drying hands and jamming slightly when moving.

Also known (US -A- 3,222,112) is one by one Electric motor driven towel dispenser the resilient Has pendulum arms, which is the tightening of the fabric serve. The disadvantage of this solution is the high frictional resistance the Pehdelstange on the cloth web, resulting in a Wear of the mostly damp or wet cloth leads and in the case of manually operated dispensers, the user-required one Operating force increased.

It is an object of the present invention to provide a method which does not have the disadvantages of the prior art shows, is economical to implement and none Maintenance required.

This object is achieved by the features of claim 1 solved.

The inclusion of an additional loop in the towel rail can be placed anywhere in the dispenser, before the wrap for used cloth, done and is not on a horizontal guided track limited.

The following dependent claims are advantageous Characterized embodiments of the invention.

The device according to the invention is based on a precise parallel guidance aligns the roller and prevents it Jam completely.

The use of a gripper rocker is particularly economical according to claim 2, since it requires few components.

A spring return of the used part of the cloth happens advantageously according to claim 3.

The design of the roller according to claim 4 results in one good contact on the towel, even when wet, allowed drying and prevents it from sticking to the Surface.

The guiding of the cloth web can be carried out according to the side guides Claim 5 can be improved again.

The path limiting elements according to claim 6 reduce noise and also relieve the mechanical elements of the Cable line.

The subject matter of the invention is illustrated below with the aid of drawings explained in more detail.

Fig. 1a

einen schematisch dargestellten Handtuchspender mit seiner Tuchführung, vor der Benutzung,

Fig. 1b

den Spender Fig. 1a mit ausgezogener Tuchschleife während der Benutzung,

Fig. 2

eine praktisch realisierte Pendelwalze mit ihren Betätigungsorganen und

Fig. 3

einen Ausschnitt aus einem Gehäuse mit in den Endstellungen eingezeichneter Pendelwalze, integriert in die übrige Konfiguration des Spenders.

Show it:

Fig. 1a

a schematically illustrated towel dispenser with its cloth guide, before use,

Fig. 1b

the dispenser Fig. 1a with the cloth loop pulled out during use,

Fig. 2

a practically realized pendulum roller with its actuators and

Fig. 3

a section of a housing with the pendulum roller shown in the end positions, integrated in the rest of the configuration of the dispenser.

1a and 1b, a dispenser is designated 100. In both figures, the cloth guide is off the roll with clean Cloth T shown until the used cloth T 'is wound up. From Fig. 1a it can be seen how inside the Dispenser 100 an additional loop 1 around a roller 2, is formed.

Now pull the hands HB of a user with two parallel ones Lines drawn in front of handle scales 3, so the roller 2 is pulled in the direction of -p and at the same time clean cloth T from the roll above issued.

The resulting towel loop 4 can be seen in Fig. 1b; it was formed without the used cloth T 'from the corresponding role had to be handled.

The practical configuration of a roller 2 is shown in FIG. 2 see; in this embodiment it is referred to as a pendulum roller 50.

This pendulum roller 50 has a structure with notches 51 and has side flange-like side guides 53 and a gear 52 serving for parallel guidance a gripper rocker grips the left side of the oscillating roller 50 55 with its recess 56 over the shaft. The Gripper rocker 55 is on a journal 64 in the direction p pivoted and has an upper side Tension spring attachment 57, on which one is approximately vertical arranged tension spring 58 is hooked. A stop pin 59 is used to force the pendulum roller 50 in Dependence of the position of one not shown here Hood.

On the right side of the pendulum roller 50 is a journal 54 rotatably used, on which a pull rope 60 is suspended, which is guided to a winding spool 61 via a rope pulley 60 ' is and wound by the integrated coil spring 63 is or is kept streamlined. A bore 62 this winding spool 61 is in a portioning wheel, not shown also rotatably mounted for the cloth dispensing.

3, the dispenser 100 is partially disassembled. One recognises here the rear wall 40 of the apparatus housing, which is usually with its mounting surface M on a vertical Wall is attached.

A side wall 18 protrudes at right angles to the rear wall 40, which is a management and storage point 41 for one Shaft journal 11 of a pivot module not visible. Behind it is a curved backdrop 49, which also guides the swivel module. In the upper area the side cheek 18 is a recess that can be seen the pin guide 42 of a filling indicator for the cloth T serves. The previously mentioned tension spring 58 is arranged next to it, on the gripper rocker 55 in the tension spring mount 57 is mounted.

In the further you do not see one concentric to one visible central gear running guide groove 39, which the management of a friction drive that is used for Winding the used cloth T 'is determined; the relieved Installation of this drive serves a widened above Guide groove 20.

Other elements, such as a guide groove 23, a vertical groove 43, which ends in a linear toothing 44 are for the parallel management of a also not shown Determine the fabric shell in which the roll with a clean cloth T is vertically displaceable.

The pendulum roller 50 is in its rear position, analog Fig. 1b, drawn and struck on path limiting elements 50 '. Here you can see their parallel guide 45 an overhead parallel toothing 46, which they axially parallel to the front position shown in dashed lines leads. The pendulum path is labeled p.

For the sake of completeness, it is also part of one Hood 25 with its journal 24 for triggering further Functions plotted.

The subject of the invention can be easily achieved The length of the towel T 'returned temporarily can be adjusted, by the pendulum travel of roller 2 or the pendulum roller 50 is set. The control of the gripper rocker 55 is realizable via the process of dispensing cloth; leaves as well they lock themselves around other functions, like loading the Don’t hinder donors.

It is particularly important that the Loop is at least approximately horizontal, because only compact and appealing in terms of their height Have the towel dispenser implemented.

Claims (6)

1. Hand towel dispenser that unrolls clean towel from a roll in portions and dispenses it in the form of a towel loop and winds it after use onto a separate roll, an additional loop being formed with the used towel in the interior of the dispenser, which loop is used for partially forming the towel loop intended for hand drying, a roller being inserted into the loop, which roller pulls the latter taut and is tracked in order to form the towel loop intended for hand drying, characterised in that an oscillating roller (50) is provided which has, in both end regions, parallel-guiding gearwheels (52) which engage on both sides in racks (46).
2. Device according to claim 1, characterised in that, on one side of the oscillating roller (50), a gripper-rocker (55) loaded by a spring (58) tensions the oscillating roller (50) in order to form the additional loop (1).
3. Device according to claim 1 or 2, characterised in that, on one side of the oscillating roller (50), a bearing pin (54) is inserted to which the end of a traction cable (60) is fastened, which traction cable (60), loaded by way of a spiral spring (63) and guided over a winding coil (61), acts on the oscillating roller (50) and relieves the load on the additional loop (1).
4. Device according to any one of claims 1 to 3, characterised in that the oscillating roller (50) has notches (51).
5. Device according to any one of claims 1 to 4, characterised in that the oscillating roller (50) has flange-like lateral guides (53).
6. Device according to any one of claims 1 to 5, characterised in that a groove-like parallel guide (45) is provided which limits the oscillation path (+p) at the front, and impact-absorbing travel-limiting elements (50') are provided on a rear wall (40) of the dispenser (100).

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