WO2008087075A1 - Dispositif de travail, en particulier dispositif de nettoyage pour fenêtres - Google Patents

Dispositif de travail, en particulier dispositif de nettoyage pour fenêtres Download PDF

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Publication number
WO2008087075A1
WO2008087075A1 PCT/EP2008/050160 EP2008050160W WO2008087075A1 WO 2008087075 A1 WO2008087075 A1 WO 2008087075A1 EP 2008050160 W EP2008050160 W EP 2008050160W WO 2008087075 A1 WO2008087075 A1 WO 2008087075A1
Authority
WO
WIPO (PCT)
Prior art keywords
working device
processing surface
suction cup
working
pressure
Prior art date
Application number
PCT/EP2008/050160
Other languages
German (de)
English (en)
Inventor
Joachim Damrath
Martin Huettner
Gerhard Wetzl
Peter Nober
Dimitri Pischits
Thomas Wilhelm
Original Assignee
BSH Bosch und Siemens Hausgeräte GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeräte GmbH filed Critical BSH Bosch und Siemens Hausgeräte GmbH
Publication of WO2008087075A1 publication Critical patent/WO2008087075A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L1/00—Cleaning windows
    • A47L1/02—Power-driven machines or devices

Definitions

  • the invention relates to a working device to be guided vertically or at least obliquely oriented, preferably planar working surface, in particular cleaning device for windows, with a suction cup holding the working device in contact with the working surface, sealingly abutting with its open side of the working surface, furthermore with a Suction device for generating a negative pressure in the suction cup, as well as with a safety device with at least one adjustable by a mechanical actuator to the processing surface and thereby coming to rest conditioning adhesive element and with a mechanical pressure switch, which at a pressure drop in the suction cup below a predetermined value Actuator for actuating the adhesive element triggers.
  • a cleaning device to be used in principle for cleaning flat glass surfaces is described in DE 100 65 405 A1 and has a cleaning element which is occupied by a cleaning medium designed, for example, as a cleaning cloth and is displaced by an eccentric drive into a vibration movement parallel to the surface to be cleaned ,
  • the cleaning device according to WO 01/80703 A1 provides a device for generating negative pressure, so that the cleaning device with substantially constant pressure on the surface to be cleaned along can be.
  • EP 1 237 456 B1 describes a safety device in which monitors the distance of the cleaning device of the surface to be cleaned is, if necessary, to activate a holding device that prevents a crash of the cleaning device.
  • WO 2005/093536 A1 describes a surface treatment system in which a fixed base part is provided for navigation of the cleaning device, which position determining the position by means of light and sound signals Receiving units provided cleaning device allows.
  • WO 2005/093537 A1 describes a surface treatment system in which the surface to be cleaned is subdivided into signal-codeable surface sections.
  • the invention has for its object to improve a working device of the type mentioned in that in the event of an error independent of the rest of the working device safety device is provided, which in any case make no additional building-side required.
  • a working device to be guided on a vertically or at least obliquely oriented, preferably planar processing surface, in particular a cleaning device for windows, with a suction cup holding the working device in contact with the processing surface, sealingly abutting with its open side of the processing surface, Further, with a suction device for generating a negative pressure in the suction cup, as well as with a safety device with at least one by a mechanical actuator to the working surface adjustable and thereby coming into abutment adhesive element and with a mechanical pressure switch, which at a pressure drop in the suction cup under a predetermined value triggers the actuator for actuating the adhesive element, wherein the working device, the actuating element has a biased in its rest position clamping member and a by the pressure switch releasable locking member is held in its biased position, which locking member is formed by a toggle lever, the two free lever ends on On the one hand and on an attachment point of the working device attack on the other hand, and at the joint of a locking
  • the advantage achieved by the invention consists, inter alia, in the fact that the negative pressure prevailing in the suction cup is monitored directly by the mechanical pressure monitor, wherein at a pressure drop and thereby threatened danger of a fall of the working device to purely mechanical, independent of the other facilities of the working device Paths adhesive elements are brought to the working surface to the plant, so that a crash of the working device is prevented solely on the triggered adhesive elements.
  • the actuating element has a prestressed in its rest position clamping member and is held by a detachable by the pressure switch locking member in its biased position.
  • the locking member is formed according to the invention of a toggle lever, attack the two free ends of the lever on the one hand and on a fastening point of the working device on the other hand and at the joint of a locking member is connected. This locking member prevents release of the locking part and thus an adjustment of the adhesive element to the processing surface.
  • the locking member is preferably aligned so that it runs in the resting state of the securing device in the direction of the outgoing from the joint of the toggle lever force vector, so that the bias of the clamping member is intercepted in the axial direction of the locking member.
  • the safety device has two adhesive elements. It has been found in the context of the invention to be advantageous if each adhesive element is formed by a suction cup.
  • the tendon may be formed by a helical spring.
  • the two locking members of two control elements in turn form a toggle lever system
  • the two Locking members in the rest position of the actuating elements take a stable, mutually elongated orientation.
  • a trigger member is advantageously connected to the joint of the two locking members, which is in releasable engagement of a release hook of the pressure switch, which takes the trigger member in pressure drop.
  • the trigger member engages a spring element which is in the relaxed state in the rest state of the securing device.
  • the unlocking hook engages a spring element which is adjusted by the pressure monitor in the prestressed state at operating pressure in the suction cup, whereby the release hook engages behind the trigger member latching.
  • the pressure monitor is formed by a bellows arranged inside the suction bell, one side of which is open towards the ambient atmosphere and the other side is closed by a membrane.
  • the bellows follows in its length the differential pressure between the ambient atmosphere and the interior of the suction cup.
  • the unlocking hook engages an unlocking, which brings the unlocking hook disengaged from the trigger member when switching off the working device.
  • the unlocking is coupled to the on / off switch of the working device.
  • the suction cups are provided with a ventilation device which can be triggered via a cable guide.
  • FIG. 1 shows a schematic representation of the securing device for a working device, reproduced in the prestressed state
  • FIGS. 1 and 2 are perspective views of the securing device according to FIGS. 1 and 2,
  • FIGS. 1 to 3 shows the securing device according to FIGS. 1 to 3 in the installed state in a working device in the form of a window cleaner.
  • the working device shown in the drawing is intended for use on vertically or at least obliquely oriented, preferably planar processing surfaces and can be designed for this purpose in particular as a cleaning device for windows.
  • this is a work apparatus in contact with the processing surface holding, in Fig. 4 recognizable suction cup 1 is provided, which bears sealingly with its open side of the processing surface edge.
  • the working device comprises a in Fig. 4 only indicated suction device 2 for generating a negative pressure in the suction cup. 1
  • a securing device shown in FIGS. 1 and 2 which has at least one adhesive element 3, which a mechanical actuator 4 can be adjusted towards the processing surface and thereby comes to rest there. Further, the securing device comprises a mechanical pressure switch 5, which triggers the actuator 4 for actuating the adhesive element 3 at a pressure drop in the suction cup 1 below a predetermined value.
  • the securing device has two adhesive elements 3, which not only achieves redundancy, but - as will be shown below - a mechanically advantageous structure is achieved.
  • each adhesive element 3 is otherwise formed by a suction cup, although other embodiments are conceivable as far as a sufficient adhesive effect on the processing surface is achieved.
  • the actuator 4 has a biased in its rest position clamping member 6 and is held in its biased position by a locking member 7 which is releasable by the pressure switch 5.
  • the tendon 6 itself is formed in a particularly simple embodiment of a coil spring. Of course, however, other embodiments, such as a pressurized piston-cylinder arrangement conceivable here.
  • the locking member 7 is formed by a toggle lever, attack the two free ends of the lever on the clamping member on the one hand and at an attachment point of the working device on the other.
  • a locking member 8 is connected, which is suitably oriented so that runs in the resting state of the securing device of the joint of the toggle lever outgoing force vector in the longitudinal direction of the locking member 8. In this way, the locking member 8 can absorb the force in the axial direction, which on the one hand only small forces are necessary to hold the locking member 8 in its rest position or deflect it in case of failure from the rest position.
  • the two locking members 8 of the two adjusting elements 4 in turn form a toggle lever system, wherein the two locking members 8 occupy a mutually stretched and therefore stable orientation in the rest position of the adjusting elements 4.
  • a trigger member 9 is connected, which is in releasable engagement of a release hook 10 of the pressure switch 5.
  • This unlocking hook 10 takes the trigger member 9 in case of pressure drop, so that then the prestressed tendon 8 adjust the adjusting element 4 and release and can bring the adhesive element 3 to rest against the working surface.
  • the trigger member 9 engages a spring element 11, which is in the rest state of the securing device in a relaxed state.
  • the pressure switch 3 is, as indicated in FIGS. 1 and 2, formed by a bellows arranged inside the suction cup 1, one side of which is open towards the ambient atmosphere and the other side is closed by a membrane 13. This follows the bellows - and with him the release hook 10 - in its length to the differential pressure between the Ambient atmosphere and the interior of the suction cup 1.
  • the unlocking hook 10 engages an unlocking member 14, which brings the unlocking hook 10 out of engagement of the trigger member 9 when you turn off the working device.
  • the unlocking member 14 may be coupled to the on / off switch of the working device, which can avoid operating errors and handling is more comfortable.
  • the suction cups 3 are provided with a ventilation device which can be triggered via a cable guide 15 indicated in FIG. 3.

Landscapes

  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Abstract

L'invention concerne un dispositif de travail, en particulier un dispositif de nettoyage pour fenêtres, devant être guidé sur une surface de traitement de préférence plane, orientée verticalement ou au moins obliquement, comprenant une cloche d'aspiration (1) qui maintient le dispositif de travail en appui contre la surface de travail, ladite cloche, avec son côté ouvert, étant appliquée en étanchéité côté bord contre la surface de travail. Le dispositif de travail comprend en outre un dispositif d'aspiration pour générer une dépression dans la cloche d'aspiration (1), ainsi qu'un dispositif de sûreté comportant au moins un élément d'adhérence (3) pouvant être déplacé à l'aide d'un élément de réglage (4) mécanique en direction de la surface de traitement et venant ainsi en appui contre celle-ci, ainsi qu'un avertisseur mécanique de pression (5) lequel, lorsque la pression dans la cloche d'aspiration (1) descend au-dessous d'une valeur prédéfinie, déclenche l'élément de réglage (4) en vue d'actionner l'élément d'adhérence (3). Dans ce dispositif de travail, l'élément de réglage (4) comporte un organe de serrage (6) précontraint dans sa position de repos, lequel est maintenu dans sa position précontrainte par l'élément de verrouillage (7) pouvant être détaché par l'avertisseur de pression (5). L'élément de verrouillage (7) se constitue d'un levier à genouillère dont les deux extrémités libres agissent sur l'organe de serrage (6) d'une part et sur un point de fixation du dispositif de travail d'autre part, et un organe de blocage (8) étant raccordé à l'articulation dudit levier.
PCT/EP2008/050160 2007-01-19 2008-01-09 Dispositif de travail, en particulier dispositif de nettoyage pour fenêtres WO2008087075A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007002937A DE102007002937A1 (de) 2007-01-19 2007-01-19 Arbeitsvorrichtung, insbesondere Reinigungsvorrichtung für Fenster
DE102007002937.5 2007-01-19

Publications (1)

Publication Number Publication Date
WO2008087075A1 true WO2008087075A1 (fr) 2008-07-24

Family

ID=39271692

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/050160 WO2008087075A1 (fr) 2007-01-19 2008-01-09 Dispositif de travail, en particulier dispositif de nettoyage pour fenêtres

Country Status (2)

Country Link
DE (1) DE102007002937A1 (fr)
WO (1) WO2008087075A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505956A1 (fr) * 1991-03-29 1992-09-30 Hebor Anstalt Appareil de nettoyage de surfaces lisses continues
JPH0549554A (ja) * 1991-08-23 1993-03-02 Toshiba Eng & Constr Co Ltd 真空吸盤を有する壁面洗浄装置
DE19958890C1 (de) * 1999-12-07 2001-02-15 Bsh Bosch Siemens Hausgeraete Sicherheitseinrichtung für eine auf einer Fläche beweglichen Vorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19835038C1 (de) * 1998-03-11 1999-07-01 Fraunhofer Ges Forschung Vorrichtung zum Fortbewegen an senkrechten, gewölbten und/oder geneigten Fassaden- und Glasflächen
DE10009514A1 (de) * 2000-02-29 2001-09-13 Bsh Bosch Siemens Hausgeraete Vorrichtung zur Durchführung von Arbeiten an einer Fläche mit Basisstation
DE10020503A1 (de) 2000-04-26 2001-10-31 Bsh Bosch Siemens Hausgeraete Vorrichtung zur Durchführung von Arbeiten an einer Fläche
DE10065405A1 (de) 2000-12-27 2002-07-04 Bsh Bosch Siemens Hausgeraete Reinigungseinheit eines mobilen Reinigungsgeräts insbesondere zum Reinigen ebener Glasflächen
DE10212964A1 (de) * 2002-03-22 2003-10-23 Fraunhofer Ges Forschung Kletterroboter für die Bewegung auf einem glatten Untergrund
AU2002332281A1 (en) * 2002-09-24 2004-04-19 Hidenori Ishihara Window wiping system
DE102004014273A1 (de) 2004-03-22 2005-10-13 BSH Bosch und Siemens Hausgeräte GmbH Flächenbearbeitungssystem
DE102004014281B4 (de) 2004-03-22 2020-07-30 BSH Hausgeräte GmbH Flächenbearbeitungssystem

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0505956A1 (fr) * 1991-03-29 1992-09-30 Hebor Anstalt Appareil de nettoyage de surfaces lisses continues
JPH0549554A (ja) * 1991-08-23 1993-03-02 Toshiba Eng & Constr Co Ltd 真空吸盤を有する壁面洗浄装置
DE19958890C1 (de) * 1999-12-07 2001-02-15 Bsh Bosch Siemens Hausgeraete Sicherheitseinrichtung für eine auf einer Fläche beweglichen Vorrichtung
EP1237456B1 (fr) * 1999-12-07 2005-04-27 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de securite destine a un appareil se depla ant sur une surface

Also Published As

Publication number Publication date
DE102007002937A1 (de) 2008-07-24

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