EP1905886B1 - Method and device for feeding basically rectangular pieces of cloth to a clothes hanger or similar - Google Patents

Method and device for feeding basically rectangular pieces of cloth to a clothes hanger or similar Download PDF

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Publication number
EP1905886B1
EP1905886B1 EP07019100A EP07019100A EP1905886B1 EP 1905886 B1 EP1905886 B1 EP 1905886B1 EP 07019100 A EP07019100 A EP 07019100A EP 07019100 A EP07019100 A EP 07019100A EP 1905886 B1 EP1905886 B1 EP 1905886B1
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EP
European Patent Office
Prior art keywords
laundry
roller
piece
edge
arrangement
Prior art date
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Application number
EP07019100A
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German (de)
French (fr)
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EP1905886A1 (en
Inventor
Andres Boom
Jaap Van Rumpt
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SUPREME MACHINERY MANUFACTURING Co Ltd
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Supreme Machinery Manufacturing Co Ltd
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Publication of EP1905886A1 publication Critical patent/EP1905886A1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/04—Arrangements for feeding or spreading the linen

Definitions

  • the invention relates to a method and a device with which substantially rectangular items of laundry can be supplied to a laundry treatment device, such as an ironing or folding device.
  • a laundry treatment device such as an ironing and / or folding device, the laundry items are lying flat and optionally supplied aligned as exactly as possible. These items of laundry are irregularly crumpled up and must be transferred from their fauxgeknüllten state in the flat-lying and optionally exactly aligned state.
  • the items of laundry may be dry or, in particular, more or less moistened, depending on the last treatment they have undergone.
  • the device has a gripping device into which a piece of laundry with its edge is inserted.
  • the gripping device transports the laundry item on a rod-shaped bar such that it rests astride it.
  • the two lateral end portions of the laundry hanging freely from the beam down.
  • the lying on the beam longitudinal portion of the laundry article is then pushed up between two conveyor belts. This longitudinal area is squeezed by the two conveyor belts and transported out of the area of the bar up out and on the lower of the two conveyor belts.
  • the crimp fold formed in the longitudinal region of the laundry article lies in the transport direction of the conveyor belt at the front.
  • the rearwardly folded portion of the laundry item may fall forward and down so that the squeezing crease opens.
  • the formation of such subsequently to be eliminated again
  • the unfolding of the crimp occurs only purposeful if it still rest sufficiently large areas of laundry on the conveyor belt. This must be taken into account when manually inserting a piece of laundry into the fastening device, with which the laundry item is pushed onto the beam, by the appropriate operator. The piece of laundry can therefore not be detected as it were blind and introduced into the device.
  • the present invention seeks to provide a gentle and yet reliable way to transfer laundry items from their non-flat lying in their flat state.
  • the invention includes that the garment can be grasped in any portion of one of its edges.
  • the garment is then automatically raised to a roller-shaped member on which it rests astride. Being one of the roller hanging down end region stored in a trough-like longitudinal channel.
  • This longitudinal channel can be opened downwards, with the result that then this existing in the longitudinal channel end portion of the laundry article also like its opposite end portion of the roller-shaped member hanging down freely.
  • the laundry item is then unrolled by corresponding rotation of the cylindrical member of the same laterally.
  • the laundry moves from top to bottom through the bottom open longitudinal channel therethrough.
  • the laundry As soon as the laundry has left the region of the longitudinal channel at the bottom, it is grasped in the axial direction at its two vertical edges with corresponding gripping devices.
  • the laundry then hangs on these two gripping devices.
  • the longitudinal channel can immediately be closed again below, so that already now a next piece of laundry can be mounted on the roller-shaped member.
  • the hanging in his two gripping devices laundry is then transferred to a transfer device, which can be done for example by blowing after appropriate release of the gripping device technically simple.
  • a transfer device which can be done for example by blowing after appropriate release of the gripping device technically simple.
  • the gripping devices can already be positioned during the rolling of the laundry article of the cylindrical member at the front and rear edge of the laundry article. If a piece of laundry does not lie exactly straight on the roller-shaped member, which means that its front and rear edges migrate in the rolling process in the axial direction, the gripping devices are moved along in the axial direction accordingly.
  • the gripping devices which are positioned so as to be movable in the longitudinal direction at a constant height of the device below the roller-shaped member, can thus follow the edge in the axial direction.
  • This method of gripping device in the axial direction can be done by means of optical sensors or other suitable means by which the edge of a laundry article can be determined.
  • the gripping devices themselves can also be activated by means of such, for example, optical devices, for example, by detecting the upper longitudinal edge of the item of laundry moving past at a certain point during unrolling and activating the gripping devices after a certain time interval. This can be achieved that a piece of laundry at its front and rear edge, in the immediate vicinity of its front and rear upper corner, can be detected.
  • a small deflecting member outside the lower arc portion of the cylindrical Link can be arranged.
  • One or more bands can be guided around the roller body and at the same time around this deflecting member or deflection roller.
  • This deflecting member which can also be a deflection roller, then forms a relatively sharp, rectangular deflection point, which effectively prevents the edge of a laundry item from moving into the region below the roller when it rolls off.
  • the longitudinal channel can have a pivoting member which can be pivoted to and fro, which can be laterally applied to a solid wall provided below the cylindrical member such that a cavity can be formed laterally below the cylindrical body between it and this wall.
  • the gripping devices are then preferably present below the pivot member.
  • a roller or roller-shaped body can be pressed from the side against the roller-shaped member during the rolling operation.
  • a feeding device 10 With a feeding device 10 according to the invention, items of laundry 12 can be brought into a plane-tensioned position, in which they rest on an in Fig. 6 indicated transfer device 14 are transferred.
  • the transfer device 14 transports the items of laundry 12 deposited successively onto a laundry treatment device, not shown, such as, for example, an ironing device.
  • the feeding device 10 has a roller-shaped member, which is formed as a straight, circular cylindrical roller 16 in cross-section. Before the in Fig. 1 left end face 18 of the roller 16 is an insertion device 20 is arranged at a small distance, which is shown in the drawing for clarity. With the introduction device 20, a laundry article 12, which is for example a bed sheet, can be transported into the area of the roller 16.
  • the insertion device 20 has a conveyor 22, along which pairs a plurality of first brackets 24 can be transported in the area in front of the end face 18 in succession.
  • a pair of brackets 24 on the underside of the corresponding rounded conveyor 22 can be seen.
  • the pair of clips 24 forms a double clip 25 with a total clip width of about 10 centimeters.
  • the suspended in the two brackets 24 garment 12 hangs down freely in a first grip.
  • the conveyor 22 has a pivoting slide 26 which is pivotable on a pivoting lever 28 about an axis 30 back and forth.
  • a pivoting lever 28 On his in Fig. 1 solid drawn position can be in the floor plan about triangular pivot valve 26 with its tip 32 ahead in the garment 12 into, for example, under the same, push.
  • the pivot lever 26 is thereby pivoted so far in the clockwise direction 34 with its tip 32 and thereby moved away from the end face 18 of the roller 16 until it abuts against a stop 36 with its tip 32. In this case, the laundry item 12 is held clamped between the stopper 36 and the tip 32.
  • the double bracket 25 can be opened with its two brackets 24, with the result that the garment 12 rests flat on the pivot slide 26.
  • the garment 12 does not protrude beyond the rear edge 38 of the pivoting slide 26th
  • two slots 40, 42 are present laterally. These slots are covered by the overlying garment 12 from above.
  • a second bracket 44, 46 are engaged, both of which are attached to the ends of two gripping arms 48, 50 in each inwardly buttoned form.
  • the two gripper arms 48, 50 form a swing gripper 52, which is pivotable about an axis 54 back and forth, such as Fig. 1 clarified.
  • pivoting slide 26 In the two slots 40, 42 of the voltage applied to its tip 32 on the stop 36 pivoting slide 26 can now be the swing gripper 52 with its two brackets 44, 46 are guided into it. As a result, the two clamps 44, 46 can grip the laundry items 12 resting on the pivoting slide 26 on the edge 56 of the laundry item 12.
  • the rocking gripper 52 now pivots a little further clockwise, so that its two brackets 44, 46 can move out of the two slots 40, 42 upwards. Then then the pivot slide 26 can be pivoted back from the stop 36 in the counterclockwise direction and the swing gripper 52 then also in the counterclockwise direction 58 in his in Fig. 1 shown dot-dashed position can be brought.
  • the garment 12 slips over the troughs 78 of the W-shaped introduction profiles 74, 76 along.
  • Fig. 2 the state is shown in which the garment 12 is still detected in the two second brackets 44, 46 of the swing gripper 12 and these two brackets in the transfer area axially in front of the roller 16 or in the initial region of the roller 16 with the mounted on the carriage 64 two third Brackets 60, 62 are located.
  • the third brackets 60, 62 are still open in this state.
  • a trough-like longitudinal channel 84 is present.
  • This longitudinal channel is related to the Fig. 2 formed to the right of the roller 16.
  • This longitudinal channel 84 is formed by a pivot wall 86 and a vertically oriented longitudinal wall 88 opposite this pivot wall 86.
  • the longitudinal wall 88 consists of an upper deflection member 90 and a lower wall portion 92.
  • the pivot wall 86 is pivotable about a laterally adjacent to the roller 16 and aligned parallel to the same pivot axis 94 by means of a double-acting pneumatic cylinder 96 back and forth.
  • the two third brackets 60, 62 are opened. Now, the sled 64 can return to its in Fig. 1
  • the roller bodies 91 are pivotally mounted for this purpose on a pivot lever 93 about an axis 95 back and forth ( Fig. 5 ). The roller bodies 91 press the laundry article against the surface of the roller 16.
  • the roller 16 is set in rotation about its longitudinal axis 66 and thus - based on the FIGS. 5, 6 and 7 - turned clockwise 97.
  • the laundry item 12 rolls off the roller 16. It will thereby move the left end portion 70 upward (arrow 98) on the roller 16 and its other, right end portion 72 accordingly move downwards (arrow 100) of the roller 16.
  • due to mutual friction of the roller body 91 is rotated accordingly, in the present example, in the counterclockwise direction 102nd
  • a carriage 110 in the axial direction, that is, in the direction of the longitudinal axis 66 of the roller 16 moved back and forth.
  • a gripper 122 is provided at the lower end of the carriage 110 with which the front or - in the presentation of the Fig. 4 to 7 - Rear edge 112 of the laundry item 20 can be taken.
  • a lower optical sensor 114 and two upper sensors 116, 118 are disposed on the carriages.
  • the two upper sensors 116, 118 are arranged in the slot-like gap between the upper deflecting member 90 and the lower wall portion 92 (FIG. Fig. 1 ).
  • the lower optical sensor 114 is disposed below the lower wall portion 92 and thereby also below the gripper 122.
  • the carriage 110 is positioned at the rear edge 112 by means of its optical sensors, even though the rim 112 is unevenly supported by the laundry 12 on the roller 16 as it rolls in the axial direction relative to the carriage 110 and thus relative to the position of the gripper 122 adjusted.
  • the carriage is carried along in the axial direction, so that the gripper 122 is always positioned at a predetermined axial distance from the edge 112 during the unrolling of the item of laundry 12 from the roller 16.
  • a comparable carriage 110a is also present in the region of the other end side of the roller 16.
  • the two carriages 110, 110a can be controlled independently of one another. They are adjusted and their gripper 122, 122a activated depending on the position of the front edge and the rear edge 112 of the laundry item 12.
  • the two carriages 110,110a start from their left or right outer position their way inside when the garment 12 almost has been pulled to the center of the roller 16.
  • the garment 12 is held suspended by the two grippers 122, 122a near its two upper corners 124, 124a, as shown in FIG Figure 11 is indicated.
  • the laundry held in the grippers 122, 122a can then be placed on the in Fig. 6 schematized transfer device 14 are transferred.
  • the laundry article 12 by blown air 130, which against the upper longitudinal edge 132 (FIG. Fig. 11 ) the laundry item 12 acts, blown against the front guide roller 134 of the transfer device 14.
  • the piece of laundry thereby migrates to the surface of the guide roller 134, wherein the two grippers 122,122a have solved their grip on the laundry item 12.
  • the guide roller 134 is a so-called suction roller.
  • the deflecting roller 134 can be moved towards the item of laundry 12 in the direction of the arrow 136 to some extent.
  • a conveyor belt arrangement 150 runs endlessly and can thereby transport the laundry article 12 from the guide roller 134 to the upper run 152 of the conveyor belt arrangement 150, from which it then continues into a not shown Ironing machine or other laundry treatment device is transported in a conventional manner.
  • Fig. 7 the deflection member 90 arranged around the lower, right-hand corner of the imaginary square surrounding the roller 16 is shown enlarged.
  • the member 90 is parallel to the longitudinal axis 66 of the roller 16.
  • Around the roller 16 and around the rod-shaped member 90 run a plurality of longitudinally 67 spaced-apart bands 156 around. These bands 156 are wound around the roller 16 so tightly that they move with the same during rotation of the roller 16.
  • the rod-shaped member 90 prevents a laundry article 12 from moving into the region 160, below the roller 16, and does not move down past the carriage 110, as shown in FIGS FIGS. 5 and 6 is shown.
  • Fig. 8 shows the movable along the roller 16 carriage 64 with its two third brackets 60, 62.
  • the two brackets 60, 62 grasp the front edge 56 of a laundry item 12 and pull the same in the corresponding method of the carriage 64 on the roller 16 in the longitudinal direction 67th
  • Der left carriage 110 is parked in the region of the left end face 18 of the roller 16.
  • This carriage 110 follows the in Figure 11 rear edge of the laundry article 12, as described above.
  • Another carriage 110a which corresponds to the carriage 110, is normally parked in the region of the right end face 18a of the roller 16 and has already been moved in the present example in the region of the front edge of the laundry item 12 and now moves together with the front edge - related on the Fig. 8 - to the right along with the front edge of the laundry item 12.
  • the carriage 110 is positioned with its left optical sensor 116 on the trailing edge of the laundry article 12 and "tracks" this trailing edge.
  • the opposite other carriage 110a follows with its other upper optical sensor 118, the front edge of the laundry item 12.
  • the two grippers 122, 122a are mirror images of each other.
  • the two grippers 122, 122a are positioned at the respective front or rear edge of the item of laundry 12 so that they only have to be moved towards each other for gripping the item of laundry 12 so that their grippers 122, 122a can fully grasp the item of laundry.
  • the optical sensors 114, 116 arranged one above the other on each carriage 110, 110a enable early detection of the orientation of the laundry article 12 resting on the roller 16; whether the same rectangular or whether it is appropriate Fig.
  • the two carriages 110, 110a can be moved jointly into a central position in the longitudinal direction of the roller 16 aligned with the central axis of the transfer device 14.
  • the swing gripper 52 can also be arranged directly - without a pivoting slide 26 - in the region of the end face 18 of the roller 16. A piece of laundry 12 could then be manually inserted with its edge 56 by hand directly into the two brackets 44, 46.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

The method involves moving a front edge and a rear edge of a laundry piece (12) in an axial direction of a roller (16), if the piece is completely fallen from the roller in a downward manner and from a region of an open trough-like longitudinal channel (84). The laundry piece is transferred to a transfer device considering a laundry treatment apparatus. A base of the trough-like channel is closed during the movement of the laundry piece at the front and rear edges. An independent claim is also included for a device for feeding rectangular pieces of laundry to a laundry an ironing device.

Description

TECHNISCHES GEBIETTECHNICAL AREA

Die Erfindung betrifft ein Verfahren und eine Vorrichtung, mit der im Wesentlichen rechteckige Wäschestücke einer Wäschebehandlungseinrichtung, wie beispielsweise einer Bügel- oder Faltvorrichtung zugeführt werden können.The invention relates to a method and a device with which substantially rectangular items of laundry can be supplied to a laundry treatment device, such as an ironing or folding device.

Einer Wäschebehandlungseinrichtung, wie einer Bügel- und/oder Faltvorrichtung, werden die Wäschestücke flach liegend und gegebenenfalls möglichst exakt ausgerichtet zugeführt. Diese Wäschestücke sind unregelmäßig zusammengeknüllt vorhanden und müssen aus ihrem zusammengeknüllten Zustand in den flachliegenden und gegebenenfalls exakt ausgerichteten Zustand überführt werden. Die Wäschestücke können trocken oder insbesondere mehr oder weniger angefeuchtet vorhanden sein, je nachdem, welche Behandlung sie zuletzt erfahren haben.A laundry treatment device, such as an ironing and / or folding device, the laundry items are lying flat and optionally supplied aligned as exactly as possible. These items of laundry are irregularly crumpled up and must be transferred from their zusammengeknüllten state in the flat-lying and optionally exactly aligned state. The items of laundry may be dry or, in particular, more or less moistened, depending on the last treatment they have undergone.

STAND DER TECHNIKSTATE OF THE ART

Aus der DE 695 02 740 T2 ist ein Verfahren und eine Vorrichtung der vorstehend genannten Art bekannt. Die Vorrichtung besitzt eine Greifeinrichtung, in die ein Wäschestück mit seinem Rand hineingesteckt wird. Die Greifeinrichtung transportiert das Wäschestück auf einen stabförmigen Balken derart, dass es rittlings auf demselben aufliegt. Die beiden seitlichen Endbereiche des Wäschestückes hängen dabei frei von dem Balken nach unten. Der auf dem Balken liegende Längsbereich des Wäschestückes wird anschließend nach oben zwischen zwei Förderbänder hineingeschoben. Dieser Längsbereich wird dabei durch die beiden Förderbänder gequetscht und aus dem Bereich des Balkens nach oben heraus und auf das untere der beiden Förderbänder transportiert. Die dabei im Längsbereich des Wäschestückes ausgebildete Quetschfalte liegt in Transportrichtung des Förderbandes vorne. Sobald die Quetschfalte das vordere Ende des Förderbandes erreicht hat, kann der rückwärtig umgeschlagene Bereich des Wäschestückes nach vorne und unten herunterfallen, so dass sich die Quetschfalte öffnet. Das Ausbilden einer solchen, nachträglich wieder zu beseitigenden Quetschfalte stellt eine unerwünschte Belastung des Wäschestückes dar. Darüber hinaus muss sichergestellt werden, dass die Quetschfalte nicht in Transportrichtung halber Länge des Wäschestückes vorhanden ist, damit nicht bei dem Auffalten des Wäschestückes dasselbe vom Förderband insgesamt ungefaltet herunterfällt. Das Auffalten der Quetschfalte erfolgt nur dann zielgerichtet, wenn dabei noch ausreichend große Wäschebereiche auf dem Förderband aufliegen. Dies muss beim manuellen Einstecken eines Wäschestückes in die Befestigungseinrichtung, mit der das Wäschestück auf dem Balken aufgeschoben wird, von der entsprechenden Bedienperson berücksichtigt werden. Das Wäschestück kann also nicht gleichsam blind erfasst und in die Vorrichtung eingeleitet werden.From the DE 695 02 740 T2 a method and a device of the aforementioned type is known. The device has a gripping device into which a piece of laundry with its edge is inserted. The gripping device transports the laundry item on a rod-shaped bar such that it rests astride it. The two lateral end portions of the laundry hanging freely from the beam down. The lying on the beam longitudinal portion of the laundry article is then pushed up between two conveyor belts. This longitudinal area is squeezed by the two conveyor belts and transported out of the area of the bar up out and on the lower of the two conveyor belts. The crimp fold formed in the longitudinal region of the laundry article lies in the transport direction of the conveyor belt at the front. Once the squeezing crease has reached the front end of the conveyor belt, the rearwardly folded portion of the laundry item may fall forward and down so that the squeezing crease opens. The formation of such, subsequently to be eliminated again In addition, it must be ensured that the crimp is not present in the transport direction half the length of the garment, so not fall when unfolded the garment the same unfolded by the conveyor belt. The unfolding of the crimp occurs only purposeful if it still rest sufficiently large areas of laundry on the conveyor belt. This must be taken into account when manually inserting a piece of laundry into the fastening device, with which the laundry item is pushed onto the beam, by the appropriate operator. The piece of laundry can therefore not be detected as it were blind and introduced into the device.

DARSTELLUNG DER ERFINDUNGPRESENTATION OF THE INVENTION

Ausgehend von diesem vorbekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine schonende und dabei betriebssichere Möglichkeit zum Überführen von Wäschestücken aus ihrem nicht flachliegenden in ihren flachliegenden Zustand anzugeben.Based on this prior art, the present invention seeks to provide a gentle and yet reliable way to transfer laundry items from their non-flat lying in their flat state.

Diese Erfindung ist für das erfindungsgemäße Verfahren durch die Merkmale des Anspruchs 1 und für die erfindungsgemäße Vorrichtung durch die Merkmale des nebengeordneten Anspruchs 12 gegeben.This invention is given for the inventive method by the features of claim 1 and for the device according to the invention by the features of the independent claim 12.

Die Erfindung beinhaltet, dass das Wäschestück in einem beliebigen Abschnitt eines seiner Ränder erfasst werden kann. Das Wäschestück wird dann automatisch auf ein walzenförmiges Glied aufgezogen, auf dem es rittlings aufliegt. Sein einer von der Walze herunter hängender Endbereich lagert dabei in einem trogartigen Längskanal auf. Dieser Längskanal kann nach unten hin geöffnet werden, was zur Folge hat, dass dann dieser im Längskanal vorhandene Endbereich des Wäschestückes ebenfalls, wie sein gegenüberliegender Endbereich, von dem walzenförmigen Glied frei nach unten hängt. Anschließend wird das Wäschestück dann durch entsprechendes Rotieren des walzenförmigen Gliedes von demselben seitlich abgerollt. Das Wäschestück bewegt sich dabei von oben nach unten durch den unten offenen Längskanal hindurch. Sobald das Wäschestück den Bereich des Längskanals nach unten hin verlassen hat, wird es in axialer Richtung an seinen beiden senkrechten Rändern mit entsprechenden Greifvorrichtungen gefasst. Das Wäschestück hängt dann an diesen beiden Greifvorrichtungen. Der Längskanal kann sofort anschließend unten wieder verschlossen werden, so dass bereits jetzt ein nächstes Wäschestück auf das walzenförmige Glied aufgezogen werden kann.The invention includes that the garment can be grasped in any portion of one of its edges. The garment is then automatically raised to a roller-shaped member on which it rests astride. Being one of the roller hanging down end region stored in a trough-like longitudinal channel. This longitudinal channel can be opened downwards, with the result that then this existing in the longitudinal channel end portion of the laundry article also like its opposite end portion of the roller-shaped member hanging down freely. Subsequently, the laundry item is then unrolled by corresponding rotation of the cylindrical member of the same laterally. The laundry moves from top to bottom through the bottom open longitudinal channel therethrough. As soon as the laundry has left the region of the longitudinal channel at the bottom, it is grasped in the axial direction at its two vertical edges with corresponding gripping devices. The laundry then hangs on these two gripping devices. The longitudinal channel can immediately be closed again below, so that already now a next piece of laundry can be mounted on the roller-shaped member.

Das in seinen beiden Greifvorrichtungen hängende Wäschestück wird dann auf eine Überführungsvorrichtung übergeführt, was beispielsweise durch Blasen nach entsprechendem Lösen der Greifvorrichtung technisch einfach erfolgen kann. Vor dem Überführen können die beiden Greifvorrichtungen, deren Position in axialer Richtung ermittelt werden kann, gemeinsam so verfahren werden, dass das Wäschestück mittig auf der Überführungsvorrichtung abgelegt werden kann.The hanging in his two gripping devices laundry is then transferred to a transfer device, which can be done for example by blowing after appropriate release of the gripping device technically simple. Before transferring the two gripping devices, the position of which can be determined in the axial direction, are jointly moved so that the laundry item can be placed centrally on the transfer device.

Um den Verfahrensablauf möglichst kurzzeitig zu gestalten, können die Greifvorrichtungen bereits während des Abrollens des Wäschestückes von dem walzenförmigen Glied am vorderen und hinteren Rand des Wäschestückes positioniert sein. Sofern ein Wäschestück nicht exakt gerade auf dem walzenförmigen Glied aufliegt, was beinhaltet, dass sein vorderer und hinterer Rand beim Abrollvorgang in axialer Richtung wandert, werden die Greifvorrichtungen in axialer Richtung entsprechend mitbewegt. Die Greifvorrichtungen, die in konstanter Höhe der Vorrichtung unterhalb des walzenförmigen Gliedes in Längsrichtung verfahrbar positioniert sind, können also in axialer Richtung dem Rand folgen. Dieses Verfahren der Greifvorrichtung in axialer Richtung kann mittels optischer Sensoren oder anderer geeigneter Einrichtungen erfolgen, mit denen der Rand eines Wäschestückes festgestellt werden kann. Auch die Greifvorrichtungen selber können aktiviert werden mittels solcher beispielsweise optischer Einrichtungen, indem beispielsweise der an einer bestimmten Stelle beim Abrollen vorbeiwandernde obere Längsrand des Wäschestückes erfasst und nach einem bestimmten Zeitintervall die Greifvorrichtungen aktiviert werden. Damit kann erreicht werden, dass ein Wäschestück an seinem vorderen und hinteren Rand, in unmittelbarer Nähe seiner vorderen und hinteren oberen Ecke, erfasst werden kann.To make the process as short as possible, the gripping devices can already be positioned during the rolling of the laundry article of the cylindrical member at the front and rear edge of the laundry article. If a piece of laundry does not lie exactly straight on the roller-shaped member, which means that its front and rear edges migrate in the rolling process in the axial direction, the gripping devices are moved along in the axial direction accordingly. The gripping devices, which are positioned so as to be movable in the longitudinal direction at a constant height of the device below the roller-shaped member, can thus follow the edge in the axial direction. This method of gripping device in the axial direction can be done by means of optical sensors or other suitable means by which the edge of a laundry article can be determined. The gripping devices themselves can also be activated by means of such, for example, optical devices, for example, by detecting the upper longitudinal edge of the item of laundry moving past at a certain point during unrolling and activating the gripping devices after a certain time interval. This can be achieved that a piece of laundry at its front and rear edge, in the immediate vicinity of its front and rear upper corner, can be detected.

Um sicher zu stellen, dass das Wäschestück sich beim Abrollen senkrecht nach unten und damit tangential von dem walzenförmigen Glied nach unten weg bewegt und nicht von dem rotierenden walzenförmigen Glied mit in dessen unteren Lichtraumbereich hineingezogen wird, kann eine kleines Umlenkglied außerhalb des unteren Bogenbereichs des walzenförmigen Gliedes angeordnet werden. Um den Walzenkörper und gleichzeitig um diess Umlenkglied oder Umlenkrolle herum können ein oder mehrere Bänder herumgeführt werden. Dieses Umlenkglied, das auch eine Umlenkrolle sein kann, bildet dann eine relativ scharfkantige, rechtwinklige Umlenkstelle, die wirkungsvoll verhindert, dass sich der Rand eines Wäschestückes beim Abrollen in den Bereich unterhalb der Rolle hineinbewegen wird.In order to ensure that the laundry item when moving vertically downwards and thus moves tangentially away from the roller-shaped member and is not drawn by the rotating roller-shaped member with in the lower clearance region, a small deflecting member outside the lower arc portion of the cylindrical Link can be arranged. One or more bands can be guided around the roller body and at the same time around this deflecting member or deflection roller. This deflecting member, which can also be a deflection roller, then forms a relatively sharp, rectangular deflection point, which effectively prevents the edge of a laundry item from moving into the region below the roller when it rolls off.

Der Längskanal kann ein hin und her verschwenkbares Schwenkgliedes besitzen, das seitlich an eine unterhalb des walzenförmigen Gliedes vorhandene feste Wand so angelegt werden kann, dass zwischen ihm und dieser Wand ein Hohlraum seitlich unterhalb des walzenförmigen Körpers ausgebildet werden kann. Die Greifvorrichtungen sind dann vorzugsweise unterhalb des Schwenkgliedes vorhanden.The longitudinal channel can have a pivoting member which can be pivoted to and fro, which can be laterally applied to a solid wall provided below the cylindrical member such that a cavity can be formed laterally below the cylindrical body between it and this wall. The gripping devices are then preferably present below the pivot member.

Um zu verhindern, dass beim Abrollen des Wäschestückes von dem walzenförmigen Glied sich dessen insbesondere letztes, oberes Ende unkontrolliert seitlich von dem walzenförmigen Glied wegbewegt, kann ein rollen- oder walzenförmiger Körper von der Seite gegen das walzenförmige Glied während des Abrollvorgangs gedrückt werden.In order to prevent that during rolling of the laundry item from the roller-shaped member whose uncontrolled last upper end moves laterally away from the roller-shaped member, a roller or roller-shaped body can be pressed from the side against the roller-shaped member during the rolling operation.

Weitere Ausgestaltungen und Vorteile der Erfindung sind den in den Ansprüchen ferner aufgeführten Merkmalen sowie dem in der Zeichnung dargestellten Ausführungsbeispiel zu entnehmen.Further embodiments and advantages of the invention are described in the claims further listed features and the embodiment shown in the drawing.

KURZE BESCHREIBUNG DER ZEICHNUNGBRIEF DESCRIPTION OF THE DRAWING

Die Erfindung wird im Folgenden anhand des in der Zeichnung dargestellten Ausführungsbeispiels näher beschrieben und erläutert. Es zeigen:

Fig. 1
eine perspektivische Übersicht einer Vorrichtung nach der Erfindung,
Fig. 2
eine stirnseitige Draufsicht auf den Bereich des walzenförmigen Gliedes der erfindungsgemäßen Vorrichtung nach Fig. 1 im Zustand des Zuführens eines Wäschestückes in den stirnseitigen Bereich dieses stabförmigen Gliedes,
Fig. 3
eine Darstellung ähnlich der von Fig. 2 während des Übergebens des Wäschestückes auf längs des stabförmigen Gliedes verfahrbare Greifeinrichtungen,
Fig. 4
eine Darstellung ähnlich der von Fig. 3 mit auf dem walzenförmigen Glied abgelegtem Wäschestück,
Fig. 5
eine Darstellung ähnlich der von Fig. 4, während des Abrollens des Wäschestückes von dem walzenförmigen Glied,
Fig. 6
eine Darstellung ähnlich der von Fig. 5 in einem Zustand, in dem das Wäschestück vollständig von dem walzenförmigen Glied abgerollt ist,
Fig. 7
eine vergrößerte Teilansicht des walzenförmigen Gliedes,
Fig. 8
eine seitliche Draufsicht auf die erfindungsgemäße Vorrichtung während des Aufziehens eines Wäschestückes auf das walzenförmige Glied,
Fig. 9
eine Draufsicht ähnlich der von Fig. 8 mit auf dem walzenförmigen Glied abgelegtem Wäschestück, so wie es in Fig. 4 dargestellt ist,
Fig. 10
eine Draufsicht ähnlich der Fig. 9 während des in Fig. 5 dargestellten Zustandes, bei dem das Wäschestück von dem stabförmigen Glied abgerollt wird,
Fig. 11
eine Draufsicht auf die Vorrichtung ähnlich der von Fig. 10, bei der das Wäschestück vollständig von dem walzenförmigen Glied abgerollt und durch zwei Greifvorrichtungen an seinem vorderen und hinteren Rand gefasst ist.
The invention will be described and explained in more detail below with reference to the embodiment shown in the drawing. Show it:
Fig. 1
a perspective overview of a device according to the invention,
Fig. 2
a frontal plan view of the area of the roller-shaped member of the device according to the invention Fig. 1 in the state of feeding a laundry into the frontal area of this bar-shaped member,
Fig. 3
a representation similar to that of Fig. 2 during the transfer of the laundry article on along the rod-shaped member movable gripping means,
Fig. 4
a representation similar to that of Fig. 3 with a piece of laundry placed on the cylindrical member,
Fig. 5
a representation similar to that of Fig. 4 during the unrolling of the laundry item from the cylindrical member,
Fig. 6
a representation similar to that of Fig. 5 in a state where the laundry is completely unrolled from the roller-shaped member,
Fig. 7
an enlarged partial view of the roller-shaped member,
Fig. 8
a lateral plan view of the device according to the invention during the Aufziehensa laundry on the roller-shaped member,
Fig. 9
a plan view similar to that of Fig. 8 with items of laundry stored on the cylindrical member, as in Fig. 4 is shown
Fig. 10
a plan view similar to the Fig. 9 during the in Fig. 5 illustrated state, in which the laundry item is unrolled from the rod-shaped member,
Fig. 11
a plan view of the device similar to that of Fig. 10 in that the garment is completely unrolled from the roller-shaped member and gripped by two gripping devices at its front and rear edges.

WEGE ZUM AUSFÜHREN DER ERFINDUNGWAYS FOR CARRYING OUT THE INVENTION

Mit einer erfindungsgemäßen Zuführvorrichtung 10 können Wäschestücke 12 in eine ebenflächig gespannte Lage gebracht werden, in der sie auf eine in Fig. 6 angedeutete Überführungsvorrichtung 14 überführt werden. Die Überführungsvorrichtung 14 transportiert die nacheinander auf ihr abgelegten Wäschestücke 12 auf eine nicht dargestellte Wäschebehandlungseinrichtung wie beispielsweise eine Bügelvorrichtung.With a feeding device 10 according to the invention, items of laundry 12 can be brought into a plane-tensioned position, in which they rest on an in Fig. 6 indicated transfer device 14 are transferred. The transfer device 14 transports the items of laundry 12 deposited successively onto a laundry treatment device, not shown, such as, for example, an ironing device.

Die Zuführvorrichtung 10 besitzt ein walzenförmiges Glied, das als im Querschnitt gerade, kreiszylindrische Walze 16 ausgebildet ist. Vor der in Fig. 1 linken Stirnseite 18 der Walze 16 ist in einem geringen Abstand, der der Übersichtlichkeit wegen in der Zeichnung vergrößert dargestellt ist, eine Einführvorrichtung 20 angeordnet. Mit der Einführvorrichtung 20 kann ein Wäschestück 12, das beispielsweise ein Bettlaken ist, in den Bereich der Walze 16 hinein transportiert werden.The feeding device 10 has a roller-shaped member, which is formed as a straight, circular cylindrical roller 16 in cross-section. Before the in Fig. 1 left end face 18 of the roller 16 is an insertion device 20 is arranged at a small distance, which is shown in the drawing for clarity. With the introduction device 20, a laundry article 12, which is for example a bed sheet, can be transported into the area of the roller 16.

Die Einführvorrichtung 20 besitzt einen Förderer 22, längs dessen paarweise mehrere erste Klammern 24 in den Bereich vor der Stirnseite 18 nacheinander hinein transportiert werden können. In der Fig. 1 ist ein Paar Klammern 24 an der Unterseite des entsprechend ausgerundeten Förderers 22 erkennbar. Das Paar Klammern 24 bildet eine Doppelklammer 25 mit einer gesamten Klammerbreite von etwa 10 Zentimetern. Das in den beiden Klammern 24 eingehängte Wäschestück 12 hängt in einem ersten Griff frei herunter.The insertion device 20 has a conveyor 22, along which pairs a plurality of first brackets 24 can be transported in the area in front of the end face 18 in succession. In the Fig. 1 a pair of brackets 24 on the underside of the corresponding rounded conveyor 22 can be seen. The pair of clips 24 forms a double clip 25 with a total clip width of about 10 centimeters. The suspended in the two brackets 24 garment 12 hangs down freely in a first grip.

Der Förderer 22 besitzt einen Schwenkschieber 26, der an einem Schwenkhebel 28 um eine Achse 30 hin und her verschwenkbar ist. Auf seiner in Fig. 1 durchgezogen gezeichneten Stellung lässt sich der im Grundriss etwa dreieckförmige Schwenkschieber 26 mit seiner Spitze 32 voraus in das Wäschestück 12 hinein, beispielsweise unter dasselbe, schieben. Der Schwenkhebel 26 wird dabei im Uhrzeigersinn 34 mit seiner Spitze 32 voraus so weit verschwenkt und dabei von der Stirnseite 18 der Walze 16 weg bewegt, bis er an einem Anschlag 36 mit seiner Spitze 32 anstößt. Dabei wird das Wäschestück 12 zwischen dem Anschlag 36 und der Spitze 32 eingeklemmt gehalten.The conveyor 22 has a pivoting slide 26 which is pivotable on a pivoting lever 28 about an axis 30 back and forth. On his in Fig. 1 solid drawn position can be in the floor plan about triangular pivot valve 26 with its tip 32 ahead in the garment 12 into, for example, under the same, push. The pivot lever 26 is thereby pivoted so far in the clockwise direction 34 with its tip 32 and thereby moved away from the end face 18 of the roller 16 until it abuts against a stop 36 with its tip 32. In this case, the laundry item 12 is held clamped between the stopper 36 and the tip 32.

Nunmehr kann die Doppelklammer 25 mit ihren beiden Klammern 24 geöffnet werden, mit der Folge, dass das Wäschestück 12 flach auf dem Schwenkschieber 26 aufliegt. Das Wäschestück 12 überragt dabei nicht den hinteren Rand 38 des Schwenkschiebers 26.Now, the double bracket 25 can be opened with its two brackets 24, with the result that the garment 12 rests flat on the pivot slide 26. The garment 12 does not protrude beyond the rear edge 38 of the pivoting slide 26th

In dem hinteren Rand 38 sind jeweils seitlich zwei Schlitze 40, 42 vorhanden. Diese Schlitze werden vom darüber liegenden Wäschestück 12 von oben abgedeckt. In jeden dieser Schlitze kann eine zweite Klammer 44, 46 eingreifen, die beide an den Enden von zwei Greifarmen 48, 50 in jeweils nach innen abgeknöpfter Form angebracht sind. Die beiden Greifarme 48, 50 bilden einen Schaukelgreifer 52, der um eine Achse 54 hin und her verschwenkbar ist, wie Fig. 1 verdeutlicht.In the rear edge 38, two slots 40, 42 are present laterally. These slots are covered by the overlying garment 12 from above. In each of these slots, a second bracket 44, 46 are engaged, both of which are attached to the ends of two gripping arms 48, 50 in each inwardly buttoned form. The two gripper arms 48, 50 form a swing gripper 52, which is pivotable about an axis 54 back and forth, such as Fig. 1 clarified.

In die beiden Schlitze 40, 42 des mit seiner Spitze 32 an dem Anschlag 36 anliegenden Schwenkschieber 26 kann nun der Schaukelgreifer 52 mit seinen zwei Klammern 44, 46 hinein geführt werden. Dadurch können die beiden Klammern 44, 46 das auf dem Schwenkschieber 26 aufliegende Wäschestücke 12 am Rand 56 des Wäschestückes 12 greifen. Der Schaukelgreifer 52 schwenkt nun noch ein wenig im Uhrzeigersinn weiter, damit seine beiden Klammern 44, 46 sich aus den beiden Schlitzen 40, 42 nach oben heraus bewegen können. Anschließend können dann der Schwenkschieber 26 vom Anschlag 36 im Gegenuhrzeigersinn zurückgeschwenkt und der Schaukelgreifer 52 dann ebenfalls im Gegenuhrzeigersinn 58 in seine in Fig. 1 dargestellte strichpunktierte Lage gebracht werden. Dort kann dann der zwischen den beiden Klammern 44, 46 vorhandene Rand 56 des Wäschestückes 12 von zwei dritten Klammern 60, 62 ergriffen werden. Diese beiden dritten Klammern 60, 62 sind an einem Schlitten 64 befestigt, der zu diesem Zweck im Bereich der Stirnseite 18 der Walze 16 geparkt ist. Dieser Schlitten 64 lässt sich axial in Richtung der Längsachse 66 der Walze 16 hin und her verfahren.In the two slots 40, 42 of the voltage applied to its tip 32 on the stop 36 pivoting slide 26 can now be the swing gripper 52 with its two brackets 44, 46 are guided into it. As a result, the two clamps 44, 46 can grip the laundry items 12 resting on the pivoting slide 26 on the edge 56 of the laundry item 12. The rocking gripper 52 now pivots a little further clockwise, so that its two brackets 44, 46 can move out of the two slots 40, 42 upwards. Then then the pivot slide 26 can be pivoted back from the stop 36 in the counterclockwise direction and the swing gripper 52 then also in the counterclockwise direction 58 in his in Fig. 1 shown dot-dashed position can be brought. There, then between the two brackets 44, 46 existing edge 56 of the laundry item 12 of two third brackets 60, 62 are taken. These two third brackets 60, 62 are attached to a carriage 64 which is parked for this purpose in the region of the end face 18 of the roller 16. This carriage 64 can be moved axially in the direction of the longitudinal axis 66 of the roller 16 back and forth.

Mittels zweier vor der Stirnseite 18 der Walze 16 in axialer Richtung hintereinander versetzt angeordneter W-förmiger Einleitungsprofile 74, 76 wird erreicht, dass das beim Verfahren des Schlittens 64 in Längsrichtung 67 an den beiden dritten Klammern 60, 62 anhängende Wäschestück 12 so auf die Walze 16 aufgezogen werden kann, dass es mit seinen beiden Endbereichen 70, 72, was in Fig. 1 angedeutet ist, rittlings aufliegt.By means of two offset in front of one another in front of the end face 18 of the roller 16 in the axial direction W-shaped Einleitungsprofile 74, 76 is achieved that during the process of the carriage 64 in the longitudinal direction 67 at the two third brackets 60, 62 hanging garment 12 so on the roller 16 can be reared, that with its two end portions 70, 72, resulting in Fig. 1 is indicated, astride rests.

Das Wäschestück 12 rutscht dabei über die Mulden 78 der W-förmigen Einleitungsprofile 74, 76 entlang. In Fig. 2 ist der Zustand dargestellt, bei dem das Wäschestück 12 in den beiden zweiten Klammern 44, 46 des Schaukelgreifers 12 noch erfasst ist und sich diese beiden Klammern im Übergabebereich axial vor der Walze 16 oder im Anfangsbereich der Walze 16 mit den am Schlitten 64 angebrachten beiden dritten Klammern 60, 62 befinden. Die dritten Klammern 60, 62 sind in diesem Zustand noch offen.The garment 12 slips over the troughs 78 of the W-shaped introduction profiles 74, 76 along. In Fig. 2 the state is shown in which the garment 12 is still detected in the two second brackets 44, 46 of the swing gripper 12 and these two brackets in the transfer area axially in front of the roller 16 or in the initial region of the roller 16 with the mounted on the carriage 64 two third Brackets 60, 62 are located. The third brackets 60, 62 are still open in this state.

Seitlich neben der Walze 16 ist ein trogartiger Längskanal 84 vorhanden. Dieser Längskanal ist bezogen auf die Fig. 2 rechts neben der Walze 16 ausgebildet. Dieser Längskanal 84 wird durch eine Schwenkwand 86 und eine dieser Schwenkwand 86 gegenüber liegende vertikal ausgerichtete Längswand 88 gebildet. Die Längswand 88 besteht aus einem oberen Umlenkglied 90 und einem unteren Wandabschnitt 92. Die Schwenkwand 86 ist um eine seitlich neben der Walze 16 angeordnete und parallel zu derselben ausgerichtete Schwenkachse 94 mittels eines doppelt beaufschlagbaren Pneumatikzylinders 96 hin und her verschwenkbar.Laterally next to the roller 16, a trough-like longitudinal channel 84 is present. This longitudinal channel is related to the Fig. 2 formed to the right of the roller 16. This longitudinal channel 84 is formed by a pivot wall 86 and a vertically oriented longitudinal wall 88 opposite this pivot wall 86. The longitudinal wall 88 consists of an upper deflection member 90 and a lower wall portion 92. The pivot wall 86 is pivotable about a laterally adjacent to the roller 16 and aligned parallel to the same pivot axis 94 by means of a double-acting pneumatic cylinder 96 back and forth.

In seinem in Fig. 2 an den unteren Wandabschnitt 92 heran geschwenkten Zustand ist besagter Längskanal 84 vorhanden. In diesem Zustand wird das Wäschestück 12 auf die Walze 16 mittels des Schlittens 64 aufgezogen. Der vollständig auf der Walze 12 aufgezogene Zustand des Wäschestückes 12 ist in Fig. 4 dargestellt. Der in der Zeichnung linke Endbereich 70 hängt dabei von der linken Längsseite der Walze 16 frei nach unten, der andere, rechte Endbereich 72 liegt dabei zusammengezogen beziehungsweise ziehharmonikaartig zusammengestaucht im Inneren des Längskanals 84. Das Aufziehen des Wäschestückes 12 auf die Walze 16 ist in Fig. 3 dargestellt. Der Rand 56 des Wäschestückes 12 wird dabei von den beiden dritten Klammern 60, 62 gefasst und rutscht von den beiden gleichzeitig geöffneten zweiten Klammern 44, 46 des Schaukelgreifers 52 ab.In his in Fig. 2 to the lower wall portion 92 pivoted state said longitudinal channel 84 is present. In this state, the laundry item 12 is mounted on the roller 16 by means of the carriage 64. The completely wound up on the roller 12 state of the laundry article 12 is in Fig. 4 shown. The left in the drawing end portion 70 depends on the left longitudinal side of the roller 16 down freely, the other, right end portion 72 is pulled together or accordion-like compressed in the interior of the longitudinal channel 84. The mounting of the laundry article 12 on the roller 16 is in Fig. 3 shown. The edge 56 of the laundry item 12 is thereby caught by the two third brackets 60, 62 and slips off the two simultaneously open second brackets 44, 46 of the swing gripper 52 from.

Sobald das Wäschestück 12 vollständig auf die Walze 16 aufgezogen ist (Fig. 4), werden die beiden dritten Klammern 60, 62 geöffnet. Nunmehr kann der Schlitten 64 wieder in seine in Fig. 1 dargestellte stirnseitige Ausgangslage zurück verfahren werden, damit er bereit steht zum Ergreifen eines nächsten Wäschestückes 12. Gleichzeitig werden im vorliegenden Fall zwei gleiche, axial hintereinander angeordnete Walzenkörper 91 gegen den oberhalb des Längskanals 84 vorhandenen Bereich der Walze 16 gedrückt. Die Walzenkörper 91 sind zu diesem Zweck an einem Schwenkhebel 93 um eine Achse 95 hin und her schwenkbar gelagert (Fig. 5). Die Walzenkörper 91 drücken das Wäschestück gegen die Oberfläche der Walze 16.As soon as the laundry article 12 is completely drawn onto the roller 16 ( Fig. 4 ), the two third brackets 60, 62 are opened. Now, the sled 64 can return to its in Fig. 1 At the same time, in the present case, two identical roller bodies 91 arranged axially one behind the other are pressed against the region of the roller 16 present above the longitudinal channel 84. The roller bodies 91 are pivotally mounted for this purpose on a pivot lever 93 about an axis 95 back and forth ( Fig. 5 ). The roller bodies 91 press the laundry article against the surface of the roller 16.

Nunmehr wird die Walze 16 in Rotation um ihre Längsachse 66 versetzt und damit - bezogen auf die Fig. 5, 6 und 7 - im Uhrzeigersinn 97 gedreht. Bei dieser Drehung rollt sich das Wäschestück 12 von der Walze 16 ab. Es wird sich dabei der linke Endbereich 70 nach oben (Pfeil 98) auf die Walze 16 zu bewegen und sein anderer, rechter Endbereich 72 sich dementsprechend nach unten (Pfeil 100) von der Walze 16 weg bewegen. Dabei wird infolge gegenseitiger Reibung der Walzenkörper 91 entsprechend mitgedreht, im vorliegenden Beispielsfall, im Gegenuhrzeigersinn 102.Now, the roller 16 is set in rotation about its longitudinal axis 66 and thus - based on the FIGS. 5, 6 and 7 - turned clockwise 97. During this rotation, the laundry item 12 rolls off the roller 16. It will thereby move the left end portion 70 upward (arrow 98) on the roller 16 and its other, right end portion 72 accordingly move downwards (arrow 100) of the roller 16. In this case, due to mutual friction of the roller body 91 is rotated accordingly, in the present example, in the counterclockwise direction 102nd

Dieses Drehen der Walze 16 im Uhrzeigersinn 97 beginnt allerdings erst, wenn die Schwenkwand 86 aus ihrer in der Fig. 4 gezeigten Stellung im Gegenuhrzeigersinn 104 sich in ihre in Fig. 5 dargestellte Stellung verschwenkt hat. Der Längskanal 84 ist nunmehr im Bereich seines Bodens 106 offen. Der Längskanal 84 besitzt nämlich nun einen ausreichend breiten Schlitz; durch den sich der rechte Endbereich 72, der immer größer beziehungsweise länger wird, von oben durch den Kanal 84 hindurchbewegt.This rotation of the roller 16 in the clockwise direction 97, however, begins only when the pivot wall 86 from its in the Fig. 4 shown position counterclockwise 104 in their in Fig. 5 has pivoted position shown. The longitudinal channel 84 is now open in the region of its bottom 106. The longitudinal channel 84 now has a sufficiently wide slot; by the right end portion 72, which is getting bigger and longer, from above through the channel 84 passes.

Unterhalb der Walze 16, zwischen den beiden Endbereichen 70, 72 des Wäschestückes 12, ist ein Schlitten 110 in axialer Richtung, d.h. in Richtung der Längsachse 66 der Walze 16 hin und her verfahrbar gelagert. Am unteren Ende des Schlittens 110 ist ein Greifer 122 vorhanden, mit dem der vordere beziehungsweise - bei der Darstellung der Fig. 4 bis 7 - hintere Rand 112 des Wäschestückes 20 ergriffen werden kann. Ferner sind an den Schlitten ein unterer optischer Sensor 114 und zwei obere Sensoren 116, 118 angeordnet. Die beiden oberen Sensoren 116, 118 sind in der schlitzartigen Lücke zwischen dem oberen Umlenkglied 90 und dem unteren Wandabschnitt 92 angeordnet (Fig. 1). Der untere optische Sensor 114 ist unterhalb des unteren Wandabschnitts 92 und dabei auch unterhalb des Greifers 122 angeordnet.Below the roller 16, between the two end regions 70, 72 of the item of laundry 12, a carriage 110 in the axial direction, that is, in the direction of the longitudinal axis 66 of the roller 16 moved back and forth. At the lower end of the carriage 110, a gripper 122 is provided with which the front or - in the presentation of the Fig. 4 to 7 - Rear edge 112 of the laundry item 20 can be taken. Further, a lower optical sensor 114 and two upper sensors 116, 118 are disposed on the carriages. The two upper sensors 116, 118 are arranged in the slot-like gap between the upper deflecting member 90 and the lower wall portion 92 (FIG. Fig. 1 ). The lower optical sensor 114 is disposed below the lower wall portion 92 and thereby also below the gripper 122.

Sobald sich nun der untere Rand 120 des linken Endbereichs 70 (Fig. 5) über die Walze 16 hinweg bewegt und an dem einen oder an den beiden oberen optischen Sensoren 116, 118 vorbei bewegt hat, das Wäschestück 12 also von der Walze 16 herabfällt und nicht mehr zwischen der Walze 16 und den Walzenkörpern 91 geführt ist, wird mit einer entsprechenden Verzögerung der an dem Schlitten 110 vorhandene Greifer 122 so aktiviert, dass er den Rand 112 des Wäschestückes 12 ergreift. Die zeitliche Verzögerung dabei ist so gewählt, dass der Greifer 122 den Rand 112 nah an seinem oberen Ende, das heißt an der oberen Ecke 124 (Fig. 11) ergreift.As soon as the lower edge 120 of the left-hand end region 70 (FIG. Fig. 5 ) has moved across the roller 16 and has moved past the one or the two upper optical sensors 116, 118, the laundry item 12 thus falling from the roller 16 and is no longer guided between the roller 16 and the roller bodies 91, with a corresponding delay of the present on the carriage 110 gripper 122 is activated so that it engages the edge 112 of the laundry item 12. The time delay is chosen so that the gripper 122 the edge 112 close to its upper end, that is, at the upper corner 124 ( Fig. 11 ) takes.

Der Schlitten 110 wird mittels seiner optischen Sensoren am hinteren Rand 112 positioniert, auch wenn der Rand 112 infolge einer nicht rechtwinkligen Auflage des Wäschesstückes 12 auf der Walze 16 sich beim Abrollen von derselben in axialer Richtung relativ zum Schlitten 110 und damit relativ zur Position des Greifers 122 verstellt. Der Schlitten wird in axialer Richtung mitgeführt, so dass der Greifer 122 immer in vorgegebenem axialen Abstand zum Rand 112 während des Abrollens des Wäschestückes 12 von der Walze 16 positioniert ist.The carriage 110 is positioned at the rear edge 112 by means of its optical sensors, even though the rim 112 is unevenly supported by the laundry 12 on the roller 16 as it rolls in the axial direction relative to the carriage 110 and thus relative to the position of the gripper 122 adjusted. The carriage is carried along in the axial direction, so that the gripper 122 is always positioned at a predetermined axial distance from the edge 112 during the unrolling of the item of laundry 12 from the roller 16.

Ein vergleichbarer Schlitten 110a ist auch im Bereich der anderen Stirnseite der Walze 16 vorhanden. Die beiden Schlitten 110,110a sind unabhängig voneinander ansteuerbar. Sie werden verstellt und ihr Greifer 122, 122a aktiviert in Abhängigkeit von der Lage des vorderen Randes und des hinteren Randes 112 des Wäschestückes 12. Dabei starten die beiden Schlitten 110,110a aus ihrer linken beziehungsweise rechten Außenposition ihre Fahrt nach innen, sobald das Wäschestück 12 fast bis in die Mitte der Walze 16 gezogen worden ist. Das Wäschestück 12 wird durch die beiden Greifer 122, 122a nahe bei seinen beiden oberen Ecken 124, 124a so aufgehängt gehalten, wie es in Fig.11 angedeutet ist. Das in den Greifern 122, 122a gehaltene Wäschestück kann dann auf die in Fig. 6 schematisiert dargestellte Überführungsvorrichtung 14 übergeben werden. Dabei wird das Wäschestück 12 durch Blasluft 130, die gegen den oberen Längsrand 132 (Fig. 11) des Wäschestückes 12 einwirkt, gegen die vordere Umlenkwalze 134 der Überführungsvorrichtung 14 geblasen. Das Wäschestück wandert dadurch auf die Oberfläche der Umlenkwalze 134, wobei die beiden Greifer 122,122a ihren Griff am Wäschestück 12 gelöst haben.A comparable carriage 110a is also present in the region of the other end side of the roller 16. The two carriages 110, 110a can be controlled independently of one another. They are adjusted and their gripper 122, 122a activated depending on the position of the front edge and the rear edge 112 of the laundry item 12. In this case, the two carriages 110,110a start from their left or right outer position their way inside when the garment 12 almost has been pulled to the center of the roller 16. The garment 12 is held suspended by the two grippers 122, 122a near its two upper corners 124, 124a, as shown in FIG Figure 11 is indicated. The laundry held in the grippers 122, 122a can then be placed on the in Fig. 6 schematized transfer device 14 are transferred. In this case, the laundry article 12 by blown air 130, which against the upper longitudinal edge 132 (FIG. Fig. 11 ) the laundry item 12 acts, blown against the front guide roller 134 of the transfer device 14. The piece of laundry thereby migrates to the surface of the guide roller 134, wherein the two grippers 122,122a have solved their grip on the laundry item 12.

An der Umlenkwalze 134 wird das Wäschestück 12 mittels Unterdruck gehalten. Die Umlenkwalze 134 ist eine sogenannte Saugwalze. Die Umlenkwalze 134 kann während der Übergabe des Wäschestückes 12, in Richtung des Pfeils 136 ein Stück weit auf das Wäschestück 12 zu bewegt werden. Um die Umlenkwalze 134 und zwei obere Umlenkwalzen 140,146 und eine untere Spannwalze 148 läuft eine Förderbandanordnung 150 endlos herum und kann dadurch das Wäschestück 12 von der Umlenkwalze 134 auf den oberen Trum 152 der Förderbandanordnung 150 hin transportieren, von dem es dann weiter in eine nicht dargestellte Bügelmaschine oder eine sonstige Wäschebehandlungseinrichtung in an sich bekannter Weise weitertransportiert wird.At the guide roller 134, the laundry article 12 is held by means of negative pressure. The guide roller 134 is a so-called suction roller. During the transfer of the laundry item 12, the deflecting roller 134 can be moved towards the item of laundry 12 in the direction of the arrow 136 to some extent. Around the guide roller 134 and two upper guide rollers 140,146 and a lower tension roller 148, a conveyor belt arrangement 150 runs endlessly and can thereby transport the laundry article 12 from the guide roller 134 to the upper run 152 of the conveyor belt arrangement 150, from which it then continues into a not shown Ironing machine or other laundry treatment device is transported in a conventional manner.

In Fig. 7 ist das um die untere, rechte Ecke des die Walze 16 umgebenden, gedachten Quadrates angeordnete Umlenkglied 90 vergrößert dargestellt. Das Glied 90 ist parallel zur Längsachse 66 der Walze 16 vorhanden. Um die Walze 16 und um das stabförmige Glied 90 laufen mehrere in Längsrichtung 67 voneinander beabstandete Bänder 156 herum. Diese Bänder 156 sind so stramm um die Walze 16 gewickelt, dass sie sich beim Rotieren der Walze 16 mit derselben mit bewegen. Das stabförmige Glied 90 verhindert, dass sich ein Wäschestück 12 in den Bereich 160, unterhalb der Walze 16, hinein bewegen könnte und sich nicht an dem Schlitten 110 vorbei nach unten bewegt, so wie es in den Fig. 5 und 6 dargestellt ist.In Fig. 7 the deflection member 90 arranged around the lower, right-hand corner of the imaginary square surrounding the roller 16 is shown enlarged. The member 90 is parallel to the longitudinal axis 66 of the roller 16. Around the roller 16 and around the rod-shaped member 90 run a plurality of longitudinally 67 spaced-apart bands 156 around. These bands 156 are wound around the roller 16 so tightly that they move with the same during rotation of the roller 16. The rod-shaped member 90 prevents a laundry article 12 from moving into the region 160, below the roller 16, and does not move down past the carriage 110, as shown in FIGS FIGS. 5 and 6 is shown.

Fig. 8 zeigt den längs der Walze 16 verfahrbaren Schlitten 64 mit seinen beiden dritten Klammern 60, 62. Die beiden Klammern 60, 62 fassen den vorderen Rand 56 eines Wäschestückes 12 und ziehen dasselbe beim entsprechenden Verfahren des Schlittens 64 auf die Walze 16 in Längsrichtung 67. Der linke Schlitten 110 ist im Bereich der linken Stirnseite 18 der Walze 16 geparkt. Dieser Schlitten 110 folgt dem in Fig.11 hinteren Rand des Wäschestückes 12, so wie es vorstehend beschrieben ist. Ein weiterer Schlitten 110a, der dem Schlitten 110 entspricht, ist normalerweise im Bereich der rechten Stirnseite 18a der Walze 16 geparkt und ist im vorliegenden Beispielsfall bereits in den Bereich des vorderen Randes des Wäschestückes 12 verfahren worden und fährt jetzt zusammen mit dem vorderen Rand - bezogen auf die Fig. 8 - nach rechts zusammen mit dem vorderen Rand des Wäschestückes 12. Fig. 8 shows the movable along the roller 16 carriage 64 with its two third brackets 60, 62. The two brackets 60, 62 grasp the front edge 56 of a laundry item 12 and pull the same in the corresponding method of the carriage 64 on the roller 16 in the longitudinal direction 67th Der left carriage 110 is parked in the region of the left end face 18 of the roller 16. This carriage 110 follows the in Figure 11 rear edge of the laundry article 12, as described above. Another carriage 110a, which corresponds to the carriage 110, is normally parked in the region of the right end face 18a of the roller 16 and has already been moved in the present example in the region of the front edge of the laundry item 12 and now moves together with the front edge - related on the Fig. 8 - to the right along with the front edge of the laundry item 12.

Der Schlitten 110 wird mit seinem linken optischen Sensor 116 an dem hinteren Rand des Wäschestückes 12 positioniert und "verfolgt" diesen hinteren Rand. Der gegenüberliegende andere Schlitten 110a verfolgt mit seinem anderen oberen optischen Sensor 118 den vorderen Rand des Wäschestückes 12. Die beiden Greifer 122, 122a sind spiegelbildlich zueinander ausgebildet. Die beiden Greifer 122, 122a werden so am jeweiligen vorderen beziehungsweise hinteren Rand des Wäschestückes 12 positioniert, dass sie zum Ergreifen des Wäschesstückes 12 nur noch ein kurzes Stück aufeinander zu bewegt werden müssen, damit ihre Greifer 122, 122a das Wäschestück voll ergreifen können. Die bei jedem Schlitten 110,110a übereinander angeordneten optischen Sensoren 114,116 ermöglichen ein frühzeitiges Erkennen der Ausrichtung des auf der Walze 16 aufliegenden Wäschestückes 12; ob dasselbe rechtwinklig oder ob es entsprechend Fig. 10 schiefwinklig aufliegt. Durch voneinander unabhängiges Aktivieren der Greifer 122, 122a dann, wenn im Bereich der beiden Schlitten 110, 110a der obere Längsrand 132 eines Wäschestückes 12 an den beiden oberen optischen Sensoren 116, 118 von beiden Schlitten von oben nach unten vorbei gelaufen ist, kann das Wäschestück 12 praktisch exakt horizontal ausgerichtet von den beiden Klammern 122, 122a im Bereich ihrer oberen Ecke 124 beziehungsweise 124a ergriffen werden und dann, wie in Fig. 6 angedeutet, an die Überführungsvorrichtung 14 übergeben werden.The carriage 110 is positioned with its left optical sensor 116 on the trailing edge of the laundry article 12 and "tracks" this trailing edge. The opposite other carriage 110a follows with its other upper optical sensor 118, the front edge of the laundry item 12. The two grippers 122, 122a are mirror images of each other. The two grippers 122, 122a are positioned at the respective front or rear edge of the item of laundry 12 so that they only have to be moved towards each other for gripping the item of laundry 12 so that their grippers 122, 122a can fully grasp the item of laundry. The optical sensors 114, 116 arranged one above the other on each carriage 110, 110a enable early detection of the orientation of the laundry article 12 resting on the roller 16; whether the same rectangular or whether it is appropriate Fig. 10 obliquely rests. By independently activating the gripper 122, 122 a, then when in the region of the two carriages 110, 110 a of the upper longitudinal edge 132 of a laundry article 12 at the two upper optical sensors 116, 118 of both carriages run from top to bottom over, the laundry may 12 practically exactly horizontally aligned by the two brackets 122, 122 a in the region of their upper corner 124 and 124 a are taken and then, as in Fig. 6 indicated to be transferred to the transfer device 14.

Vor der Übergabe können die beiden Schlitten 110,110a gemeinsam in eine zur Mittelachse der Überführungsvorrichtung 14 ausgerichtete mittige Position in Längsrichtung der Walze 16 verfahren werden.Before the transfer, the two carriages 110, 110a can be moved jointly into a central position in the longitudinal direction of the roller 16 aligned with the central axis of the transfer device 14.

Zur Übergabe eines Wäschestückes 12 auf eine Walze 16 kann der Schaukelgreifer 52 auch unmittelbar - ohne einen Schwenkschieber 26 - im Bereich der Stirnseite 18 der Walze 16 angeordnet werden. Ein Wäschestück 12 könnte dann mit seinem Rand 56 manuell per Hand direkt in die beiden Klammern 44, 46 eingeführt werden.To transfer a piece of laundry 12 to a roller 16, the swing gripper 52 can also be arranged directly - without a pivoting slide 26 - in the region of the end face 18 of the roller 16. A piece of laundry 12 could then be manually inserted with its edge 56 by hand directly into the two brackets 44, 46.

Claims (18)

  1. Method for feeding substantially rectangular pieces of laundry (12) to a transfer arrangement (14) which is arranged upstream of a laundry treatment device such as an ironing and/or folding arrangement for laundry, characterized by the following features:
    - the piece of laundry (12), which is gripped at one of its edges (112), is pulled onto a roller-like member (16) such that the piece of laundry (12) rests astride the roller-like member (16) and in the process hangs down freely from the roller-like member (16) by way of a first of its two mutually opposing end regions (70, 72) and is accommodated from above, by way of the other, second end region (72), in a trough-like longitudinal channel (84) extending in the axial direction,
    - subsequently, the bottom of the trough-like channel (84) is opened in the downward direction, with the result that the second end region (72) of the piece of laundry (12), this end region being located in the trough-like channel (84) likewise hangs down freely from the roller-like member (16),
    - at the same time or subsequently, the roller-like member (16) is rotated about its longitudinal axis (66), with the result that the first end region (70) of the piece of laundry (12) moves upwards and the opposite, second end region (72) moves downwards, and thus the piece of laundry (12) as a whole rolls off the roller-like member (16),
    - subsequently, when the entire piece of laundry (12) has dropped down from the roller-like member (16) and has moved downwards out of the region of the open trough-like channel (84), the front and rear edges (112) of the piece of laundry (12) are gripped in each case in the axial direction of the roller-like member (16), and
    - subsequently, the piece of laundry (12) is transferred to a transfer arrangement (14) located upstream of the laundry treatment device,
    - at the same time as or following the gripping of the piece of laundry (12) at its front and rear edges (112), the bottom of the trough-like channel (84) is closed again.
  2. Method according to Claim 1,
    - characterized in that
    - each of the two gripping arrangements (122, 122a), by way of which the two edges (112) of the piece of laundry (12) are gripped, are moved towards or away from the front or rear edge (112) of the piece of laundry (12) in the axial direction of the roller-like body (16), in order that each of the two gripping arrangements (122, 122a) is held at a respectively predetermined axial distance from the front or rear edge (112) of the piece of laundry (12), while the piece of laundry (12) rolls off the roller-like member (16) and its two edges (112) move past the two gripping arrangements (122, 122a) from top to bottom.
  3. Method according to Claim 1 or 2,
    - characterized in that
    - the trough-like channel (84) is closed at the bottom again once an entire piece of laundry (12) has moved downward through the open channel (84).
  4. Method according to one of the preceding claims,
    - characterized in that
    - the position of the front and/or rear edge (112) of the piece of laundry (12) is determined, in particular detected optically, a number of times at least in the axial direction while the piece of laundry (12) rolls off the roller-like member (16),
    - and, depending on the respectively determined position of the edge (112) in question, the gripping arrangement (122, 122a) assigned to the edge (112) is adjusted in the axial direction such that the gripping arrangement (122, 122a) in question is oriented in a predetermined manner with respect to this edge (112) as seen in the axial direction.
  5. Method according to one of the preceding claims,
    - characterized in that
    - roller bodies (16) press the piece of laundry (12) against the roller-like member (16) while said piece of laundry (12) rolls off the roller-like member (16).
  6. Method according to one of the preceding claims,
    - characterized in that
    - the piece of laundry (12) which has rolled off the roller-like member (16), and is held by the two gripping arrangements (122, 122a), is released by the gripping arrangements (122, 122a) and is blown against a transfer arrangement (14).
  7. Method according to Claim 6,
    - characterized in that
    - the piece of laundry (12) which has been blown onto the transfer arrangement (14) is held on the latter by suction.
  8. Method according to one of the preceding claims,
    - characterized in that
    - before the piece of laundry (12) is transferred to the transfer arrangement (14), the piece of laundry (12), which is gripped at its front and rear edges (112), is oriented with respect to the transporting direction of the transfer arrangement (14) .
  9. Method according to Claim 8,
    - characterized in that
    - the piece of laundry (12) is deposited with its centre line centrally on the feeding arrangement (10).
  10. Method according to one of the preceding claims,
    - characterized in that
    - the position of that longitudinal edge (132) of the piece of laundry (12) which is at the top in the completely rolled-off state is determined at least once before the front and rear edges (112) of said piece of laundry (12) are gripped, and the two edges (112) of the piece of laundry (12) are gripped in dependence thereon.
  11. Method according to Claim 10,
    - characterized in that
    - the position of the upper longitudinal edge (132) is determined in the region of the front edge (112) and, independently thereof, in the region of the rear edge (112) and the two edges (112) are gripped independently of one another.
  12. Arrangement (10) for feeding substantially rectangular pieces of laundry (12) to a transfer arrangement (14) which is arranged upstream of a laundry treatment device such as an ironing and/or folding arrangement for laundry,
    - having a rod-like member, astride which a piece of laundry having end regions (70, 72) that hang down laterally can be supported,
    - characterized in that
    - the rod-like member is a roller-like member (16) that can be driven in a rotatable manner about its longitudinal axis,
    - a trough-like longitudinal channel (84) can be formed to the side of the roller-like member (16) in order temporarily to receive the one end region (72) of the piece of laundry (12) that is present on one side of the roller-like member (16),
    - the bottom (106) of the trough-like longitudinal channel (84) can be opened such that the one end region (72) drops down out of the trough-like longitudinal channel (84),
    - gripping arrangements (122, 122a) for gripping the front and rear edges (112) of the piece of laundry (12) are present beneath the roller-like member (16) such that
    - the piece of laundry (12) that has rolled down off the roller-like element (16) can be gripped at the sides by the gripping arrangements (122, 122a).
  13. Arrangement according to Claim 12,
    - characterized in that
    - devices for determining the upper longitudinal edge (132) of the piece of laundry (12) in the completely rolled-off state are present,
    - these devices are designed to actuate the gripping arrangements (122, 122a) that grip the front and rear edges (112) of the piece of laundry (12) .
  14. Arrangement according to Claim 13,
    - characterized in that
    - two carriages (110, 110a) can be moved independently of one another along the roller-like member (16) and underneath the latter,
    - devices for determining the upper longitudinal edge (132) and for gripping the front or rear edge (112) of the piece of laundry (12) are present on each carriage (110, 110a).
  15. Arrangement according to Claim 14,
    - characterized in that
    - devices for determining the front or rear edge (112) at least of that end region (72) of the piece of laundry (12) that is accommodated temporarily in the trough-like longitudinal channel (84) are present on each carriage (110, 110a).
  16. Arrangement according to Claim 15,
    - characterized in that
    - the devices for determining the longitudinal edge (132) and the front or rear edge (112) of a piece of laundry (12) have optical sensors (114, 116, 118).
  17. Arrangement according to one of Claims 12 to 16,
    - characterized in that
    - roller bodies (91) can be placed against the roller-like member (16) such that
    - there is a frictional connection between the piece of laundry (12), that can roll off the roller-like member (16), and both the roller-like member (16) and the rolling or roller body (91).
  18. Arrangement according to one of the preceding claims,
    - characterized in that
    - a rod- or roller-like deflecting member (90) is present laterally next to the roller-like member (16),
    - the longitudinal axis of this deflecting member (90) is present parallel to the longitudinal axis (66) of the roller-like member (16),
    - at least two endless belts (156) are placed in a frictional manner around the roller-like member (16) and around the deflecting member (90).
EP07019100A 2006-09-29 2007-09-28 Method and device for feeding basically rectangular pieces of cloth to a clothes hanger or similar Active EP1905886B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006046653A DE102006046653A1 (en) 2006-09-29 2006-09-29 Method and device for feeding substantially rectangular laundry items to an ironing device or the like

Publications (2)

Publication Number Publication Date
EP1905886A1 EP1905886A1 (en) 2008-04-02
EP1905886B1 true EP1905886B1 (en) 2011-06-01

Family

ID=38871865

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07019100A Active EP1905886B1 (en) 2006-09-29 2007-09-28 Method and device for feeding basically rectangular pieces of cloth to a clothes hanger or similar

Country Status (3)

Country Link
EP (1) EP1905886B1 (en)
AT (1) ATE511570T1 (en)
DE (1) DE102006046653A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1465433A (en) * 1920-03-04 1923-08-21 Troy Laundry Machinery Co Ltd Clothes-handling mechanism
US3198315A (en) * 1962-01-25 1965-08-03 Sr Arch O Long Method and apparatus for feeding flatwork ironers
GB1255499A (en) * 1968-09-03 1971-12-01 Polymark Int Ltd Methods and apparatus for feeding sheets to processing equipment
DK172194B1 (en) * 1994-02-08 1997-12-22 Jensen Ejnar & Soen As Method and apparatus for unfolding and loading a wash piece in a clothing processing apparatus

Also Published As

Publication number Publication date
ATE511570T1 (en) 2011-06-15
DE102006046653A1 (en) 2008-04-03
EP1905886A1 (en) 2008-04-02

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