EP2665388B1 - Dispositif d'accouplement comprenant un disque monobrosse et une bride - Google Patents

Dispositif d'accouplement comprenant un disque monobrosse et une bride Download PDF

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Publication number
EP2665388B1
EP2665388B1 EP12701860.4A EP12701860A EP2665388B1 EP 2665388 B1 EP2665388 B1 EP 2665388B1 EP 12701860 A EP12701860 A EP 12701860A EP 2665388 B1 EP2665388 B1 EP 2665388B1
Authority
EP
European Patent Office
Prior art keywords
flange
section
wedge
recited
coupling
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP12701860.4A
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German (de)
English (en)
Other versions
EP2665388A1 (fr
Inventor
Wolfgang Heck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sueddeutsche Buersten- und Kunststoffabrik Eugen Gutmann GmbH
Original Assignee
Sueddeutsche Buersten- und Kunststoffabrik Eugen Gutmann 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 Sueddeutsche Buersten- und Kunststoffabrik Eugen Gutmann GmbH filed Critical Sueddeutsche Buersten- und Kunststoffabrik Eugen Gutmann GmbH
Priority to PL12701860T priority Critical patent/PL2665388T3/pl
Publication of EP2665388A1 publication Critical patent/EP2665388A1/fr
Application granted granted Critical
Publication of EP2665388B1 publication Critical patent/EP2665388B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B7/00—Bristle carriers arranged in the brush body
    • A46B7/04—Bristle carriers arranged in the brush body interchangeably removable bristle carriers
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/008—Disc-shaped brush bodies
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • 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
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • the invention relates to a coupling device of a floor cleaning machine for releasably securing a brush disk to a flange.
  • Such brushes or clutches are for example from the DE 195 05 344 C1 , of the DE 82 24 041 U1 , of the DE 93 02 184 U1 or the US 3,600,735 previously known.
  • a brush disc in which mushroom-like pins are provided, which serve for bayonet fixing.
  • the mushroom-like pins are first axially introduced into central, expanded areas of flange-side mold slots and then rotated, so that the pins are brought by connection areas in narrower slot parts.
  • the mushroom hats of the pins forming the coupling sections then engage behind the flange areas laterally next to the narrower slot parts.
  • the pins are held in their position by spring means.
  • brush discs or couplings are for example from the US Pat. No. 2,541,526 A , of the DE 42 15 802 A1 , of the US 5,645,365 A and the US 4,391,548 A previously known.
  • coupling portions are provided, which come to the clutch of the brush disc on a machine-side flange with flange-side holding portions in the rear grip.
  • the US 5,645,365 discloses a coupling device of a floor cleaning machine according to the preamble of claim 1.
  • the brush disk in the mounting position is not always aligned in a preferred position, in particular concentric to the axis of rotation of the machine-side flange. This can cause disturbing noises as well as damage to the brush disc.
  • the present invention has for its object to provide a coupling device which is functionally reliable, and yet in a simple manner, a clutch disc to a machine-side flange can be arranged.
  • the coupling portions are formed by the mushroom hats of the pins, so according to the invention, the coupling portions on additional guide portions, which engage with the flange-side mating portions.
  • the at least one guide section and / or the at least one mating section are designed so that they engage with one another in a form-fitting manner at least in sections during rotation into the fastening position.
  • the guide section is provided on at least one side of the at least one coupling section extending transversely to the direction of rotation.
  • Direction of rotation is the direction in which the brush disc is rotated relative to the flange to transfer it into the mounting position.
  • the guide section then preferably engages with the mating section in the fastening position. In particular, contact contact may occur.
  • the guide section as such may be formed in particular as a wedge or as a wedge recess.
  • a wedge recess is a complementary to a wedge recess into which a wedge can engage.
  • the wedge or the wedge recess in particular have two wedge surfaces enclosing a wedge angle, which extend perpendicular to the brush disk plane.
  • the brush disk plane is the plane that lies in the brush disk or which runs parallel to the cleaning side of the brush disk.
  • the wedge or the wedge recess can also be designed such that a plane lying between the wedge surfaces extends parallel to the brush disk plane.
  • a wedge or a wedge recess has the advantage that during the transfer of the brush disc from the insertion position into the fixing position due to the wedge a centering of the brush disc with respect to the flange can take place.
  • the wedge or the wedge recess has an insertion bevel, which forms an acute angle with the brush disk plane, or a plane extending perpendicularly thereto.
  • the insertion bevel can be formed as a flat surface.
  • it can also be provided that the insertion bevel is formed crowned.
  • the coupling section has two sides extending transversely to the direction of rotation, on which guide sections which are essentially mirror-symmetrical to one another are provided.
  • Such a design has the advantage that, depending on the clockwise or counterclockwise rotation of the machine, a respective guide section can engage the counterpart section.
  • a further embodiment of the invention is characterized in that the guide section is provided on the side of the at least one coupling section cooperating with the holding section.
  • the guide portion is thus formed extending in the axial direction.
  • the guide portion is in such a way that it comes into engagement with the counter portion during rotation of the brush disc from the insertion position into the mounting position.
  • the guide portion may be formed in particular as a web or as a web recess.
  • the web or the web recess can lie on a circular path which runs around the axis of rotation of the brush disk.
  • the web or the web recess can be rectangular or triangular in cross section or even bent.
  • the cross-sectional area of the web or the web recess decreases or increases along its or their longitudinal extent in the twisting direction.
  • the guide section is formed as a chamfer such that the chamfer on the one hand encloses an acute angle ⁇ with a radial plane perpendicular to the axis of rotation of the brush disc and, on the other hand, with an axial plane perpendicular to the radial plane and through the axis of rotation includes obtuse angle ⁇ .
  • the chamfering is thus designed such that it is not perpendicular to the radial plane nor perpendicular to the axial plane.
  • the angle ⁇ is preferably a value in the range of 35 ° to 55 °, and preferably in the range of 45 °.
  • the angle ⁇ which is preferably measured from a chamfering or limiting axial plane in the direction of rotation towards chamfering, has in particular a value in the range of 95 ° to 130 ° and preferably in the range of 100 ° to 110 °.
  • the chamfering can be designed as such as a straight plane or slightly curved plane or slightly convex.
  • the chamfer preferably has a triangular or trapezoidal contour in plan view.
  • Such a design has the advantage that when the mating portion is formed complementary to the guide portion, during rotation of the brush disc of the guide portion and the mating portion into engagement or come into contact for a centering in the radial direction and on the other hand ensures a play-free concern in the axial direction can be.
  • the guide portion is formed at least substantially complementary to the counter portion.
  • the mating section may be formed as a wedge recess or as a wedge, wherein the wedge recess or the wedge provide two wedge surfaces enclosing a wedge angle, which extend in particular perpendicular to the flange plane.
  • the wedge recess or the wedge may provide an abutment that encloses an acute angle with the flange plane or a plane extending perpendicular thereto.
  • the abutment can be designed so that when the brush disc has an insertion, in the mounting position, the abutment slope rests against the insertion. Preferably, then the huischräge and the insertion be appropriate angles.
  • the contact slope can be formed as a straight plane.
  • the contact angle is crowned, the insertion be designed as a straight plane.
  • the holding section can also be designed such that two sides running transversely to the direction of rotation are provided, on which opposing sections designed essentially mirror-symmetrically to one another are provided.
  • the mating section is at least substantially complementary to the guide section.
  • the flange is formed as chamfering such that the chamfer on the one hand encloses an acute angle ⁇ 'with a plane perpendicular to the axis of rotation of the flange radial plane and on the other hand includes an obtuse angle ⁇ ' with an axial plane perpendicular to the radial plane and through the axis of rotation ,
  • the angle ⁇ ' is preferably in the range of 35 ° to 55 ° and more preferably in the range of 40 ° to 50 °.
  • the angle ⁇ ' is preferably in the range of 95 ° to 130 ° and more preferably in the range of 100 ° to 110 °.
  • the angle ⁇ ' is preferably measured starting from the axial plane in the direction of rotation towards chamfering.
  • the machine-side part is understood, with which the torque is transmitted to the brush disk.
  • the flange can be arranged detachably on the machine, or the drive shaft. As a rule, the flange is fastened to the machine by means of a screw connection. On the other hand, it is conceivable that the flange can also be provided on the machine detachable without tools.
  • the flange can assume an adapter function between the machine and the brush disk.
  • FIG. 1 a machine-side flange 10 of a floor cleaning machine is shown, to which a brush disk 12, as in FIG. 2 is shown in sections, can be arranged.
  • the flange 10 provides for in the radial direction extending holding portions 14.
  • the brush disc 12 provides a central receptacle 16 into which the flange 10 can be inserted in the axial direction.
  • radially outwardly projecting coupling portions 18 are provided on the brush disc 12 .
  • these coupling portions 18 are brought into lying between the holding portions 14 Ein Industriesaussparungen 20.
  • the brush disc 12 is rotated relative to the flange 10, so that the coupling portions 18 engage behind the holding portions 14 at least in sections.
  • the coupling portions 18 guide portions in the form of wedges 22.
  • the wedges 22 are provided on the transverse to the direction of rotation 24 side of the coupling portions 18.
  • the wedges 22 an insertion bevel 26, which include the brush disc plane 27 an acute angle ⁇ .
  • the insertion bevel 26 as such is designed as a straight plane. However, it is also conceivable that the insertion bevel may be spherical.
  • the wedge recesses 28 also have a wedge-angle enclosing wedge surfaces 30, which in particular in FIG. 8 can be clearly seen and run perpendicular to the flange 38.
  • the wedge recesses 28 also have an attachment bevel 32 running parallel to the insertion bevel 26.
  • each coupling portion 18 provides two on the opposite, provided transversely to the direction of rotation sides provided guide portions in the form of the wedges 22 before.
  • the coupling portions 18 are inserted into the Ein Concreteaussparungen 22.
  • facing wedges 21 and wedge recesses 28 come into engagement.
  • the holding portions 14 in this case provide substantially rearward engagement surfaces 34 extending substantially perpendicularly to the axis of rotation of the flange 10, which engage with rear engagement surfaces 36 at the coupling side, likewise substantially perpendicular to the axis of rotation of the disk 10 Rotate the disc 12 and the flange 10 from the insertion position in the mounting position cooperate. In FIGS. 9 and 10 this liner is shown.
  • the disc 12 By engaging the wedges 22 with the wedge recesses 28, the disc 12 can assume a positionally accurate position with respect to the flange 10 and, in particular, centering of the disc 12 on the flange 10 can be provided.
  • the interaction of the chamfers 26 with the 6.3schrägen 32 ensures that no axial play between the brush disc 12 and the flange 10 is provided and also it can be ensured that the brush disc 12 occupies a predetermined position in the axial direction.
  • FIGS. 13 and 14 is different from the one in the FIGS. 1 to 12 shown embodiment in that the brush-disc-side guide portions are not formed as wedges, but as grooves 40 and that the flange-side mating portions are not formed as wedge recesses, but as webs 42.
  • the FIGS. 13 and 14 are the FIGS. 1 to 12 corresponding components provided with corresponding reference numerals.
  • the Indian FIG. 13 shown flange 44 has at the rear grip surfaces 34 of the holding portions 14, the webs 42, which lie in plan view on a lying about the axis of rotation of the flange 44 line.
  • the webs 42 as such extend in the axial direction away from the rear grip surfaces 34.
  • the webs 42 are slightly conical in cross section.
  • insertion chamfers 26 are provided on the coupling sections 18. On the flange 44 associated gantrygen 32 are provided. In the attachment position, the insertion bevels 26 act against the abutment slopes 32.
  • the brush-side guide sections and the flange-side opposite sections are designed as inclined chamfers, which are described in more detail below.
  • components already described above are provided with corresponding reference numerals.
  • FIG. 15 shows a flange 50 with associated brush disc 52.
  • radially outwardly projecting holding portions 14 are arranged.
  • radially inwardly projecting coupling portions 18 are provided in the receptacle 16 of the brush disc 52 .
  • these coupling portions 18 are brought into insertion recesses 20 located between the holding portions 14. Then, as already for FIG. 1 explained, the brush disc 52 is rotated relative to the flange 50, so that the coupling portions 18 engage behind the holding portions 14 at least in sections.
  • guide portions in the form of obliquely extending chamfers 62 are provided on the holding portions.
  • the chamfer 62 closes with a perpendicular to the Radial plane 64 standing and the axis of rotation intersecting axial plane 66 an obtuse angle ⁇ a.
  • the angle ⁇ in the range of 45 ° and the angle ⁇ in the range of 100 °.
  • the chamfers 62 and 72 are arranged perpendicular to the intersecting radial planes nor perpendicular to the axial planes intersecting them, and in that the chamfers 62 and 72 are arranged in the mounting position substantially parallel to each other lying adjacent, can during rotation the brush disk in the mounting position for a centering in the radial direction and on the other a playless abutment in the axial direction can be achieved.
  • FIG. 20 the insertion position is shown. From the partial section according to FIG. 21 It is apparent that the holding portion 14 is disposed between two brush-disc-side coupling portions 18. In FIG. 22 the brush disk 52 is in the mounting position. Out FIG. 23 It is clear that the chamfers 62 and 72 are in this position parallel to each other.
  • flange 10, 44 and / or 50 shown in the figures it can be a releasably arranged on the machine flange.
  • the flange can be arranged, for example, by means of fastening screws or by means of fastening types detachable without tools on the machine or its drive.
  • the invention is not limited to the guide sections shown in the embodiments and associated counter sections in the form of wedges and associated wedge recesses or webs and associated web recesses or chamfers each other accordingly. Other portions that perform a corresponding function are also detected according to the invention.
  • the mating sections are designed to be complementary to the guide sections. It is crucial that the guide sections get into effective engagement with the counterpart sections.

Landscapes

  • Brushes (AREA)
  • Motor Or Generator Current Collectors (AREA)

Claims (13)

  1. Dispositif d'accouplement d'une machine de nettoyage des sols, comprenant un disque à brosse (12, 46) et une bride (10, 44),
    le disque à brosse (12, 46) comprenant des segments d'accouplement (18),
    la bride (10, 44) comprenant des segments de maintien (14) et des évidements d'insertion (20),
    les segments d'accouplement (18) pouvant, pour accouplement du disque à brosse (12, 46) à la bride (10, 44), être dans une position d'insertion insérés axialement dans les évidements d'insertion (20) côté bride, et, par torsion du disque à brosse (12, 46),
    venant se plaquer sur l'arrière des segments de maintien (14) côté bride lorsque est atteinte une position de fixation,
    caractérisé en ce qu'au moins un segment d'accouplement (18), se trouvant en position de fixation après avoir été plaqué sur l'arrière, comprend un segment de guidage (22, 40), qui lors de la torsion du disque à brosse (12, 46) peut dans la position de fixation entrer en prise avec un contre-segment (28, 42) prévu contre le segment de maintien (14) côté bride, contre-segment qui se trouve lui aussi plaqué sur l'arrière dans la position de fixation, de façon qu'il en résulte une orientation centrée du disque à brosse (12, 46) par rapport à la bride (10, 44) dans la position de fixation.
  2. Dispositif selon la revendication 1, caractérisé en ce que le segment de guidage (22, 40) et le contre-segment (28, 42) sont configurés de façon que, lors de la torsion du disque à brosse dans la position de fixation, le segment de guidage vienne s'appuyer dans la direction axiale sans jeu contre le contre-segment (28, 42).
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que le segment de guidage (22) est prévu au moins par segments contre au moins un côté, courant perpendiculairement au sens de torsion (24), du ou des segments d'accouplement (18).
  4. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le ou les contre-segments (28, 42) sont configurés complémentaires d'au moins un segment de guidage (22, 40).
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le segment de guidage (22) est configuré comme un coin ou comme un évidement en coin, et le contre-segment (28) est configuré comme un évidement en coin ou comme un coin, l'évidement en coin ou le coin fournissant deux surfaces de coin (30) faisant entre elles un angle de coin.
  6. Dispositif selon la revendication 5, caractérisé en ce que le coin (22) ou l'évidement en coin présente un chanfrein d'insertion (26), qui fait un angle aigu (β) avec le plan (27) du disque à brosse ou le plan de la bride.
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le segment d'accouplement (18) comprend deux côtés courant perpendiculairement au sens de torsion (24), côtés contre lesquels sont prévus des segments de guidage (22), configurés essentiellement symétriquement l'un par rapport à l'autre.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le segment de guidage (40) est prévu sur le côté, coopérant avec le segment de maintien (14), du ou des segments d'accouplement (18).
  9. Dispositif selon l'une des revendications 1 à 4, 7 ou 8, caractérisé en ce que le segment de guidage (40) est configuré comme un biseau, de façon que le biseau d'une part fasse un angle aigu γ avec un plan radial courant perpendiculairement à l'axe de rotation du disque à brosse, et d'autre part fasse un angle obtus δ avec un plan axial courant perpendiculairement au plan radial et passant par l'axe de rotation.
  10. Dispositif selon la revendication 9, caractérisé en ce que l'angle γ est compris dans la plage de 35 à 55° et de préférence dans la plage de 40 à 50°, et/ou que l'angle δ est compris dans la plage de 95 à 150° et de préférence dans la plage de 100 à 110°.
  11. Dispositif selon l'une des revendications 9 ou 10, caractérisé en ce que le biseau est configuré comme une surface plane, légèrement incurvée ou convexe, et/ou en vue de dessus présente un contour triangulaire ou trapézoïdal.
  12. Dispositif selon la revendication 9, 10 ou 11, caractérisé en ce que le contre-segment (28) est configuré comme un biseau, de telle sorte que le biseau d'une part fasse un angle aigu γ' avec un plan radial courant perpendiculairement à l'axe de rotation de la bride, et d'autre part fasse un angle obtus δ' avec un plan axial courant perpendiculairement au plan radial et passant par l'axe de rotation.
  13. Dispositif selon l'une des revendications 1 à 4, 7 ou 8, caractérisé en ce que le segment de guidage (40) est configuré comme une lame ou un évidement en forme de lame, et que le contre-segment (28, 42) est configuré comme un évidement en forme de lame, ou comme une lame.
EP12701860.4A 2011-01-21 2012-01-23 Dispositif d'accouplement comprenant un disque monobrosse et une bride Active EP2665388B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL12701860T PL2665388T3 (pl) 2011-01-21 2012-01-23 Urządzenie łączące obejmujące tarczę szczotkową i kołnierz

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011002978A DE102011002978B4 (de) 2011-01-21 2011-01-21 Bürstenscheibe, maschinenseitiger Flansch und Kupplungseinrichtung umfassend eine Bürstenscheibe und einen Flansch
PCT/EP2012/050980 WO2012098259A1 (fr) 2011-01-21 2012-01-23 Disque monobrosse, bride montée sur machine, et dispositif d'accouplement comprenant un disque monobrosse et une bride

Publications (2)

Publication Number Publication Date
EP2665388A1 EP2665388A1 (fr) 2013-11-27
EP2665388B1 true EP2665388B1 (fr) 2014-11-12

Family

ID=45558697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12701860.4A Active EP2665388B1 (fr) 2011-01-21 2012-01-23 Dispositif d'accouplement comprenant un disque monobrosse et une bride

Country Status (5)

Country Link
EP (1) EP2665388B1 (fr)
DE (1) DE102011002978B4 (fr)
ES (1) ES2529996T3 (fr)
PL (1) PL2665388T3 (fr)
WO (1) WO2012098259A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9265397B2 (en) 2012-07-09 2016-02-23 Carlisle Food Service Products, Inc. Adapter plate for a rotary floor scrubbing machine
EP3599311A1 (fr) 2018-07-25 2020-01-29 TTI (Macao Commercial Offshore) Limited Appareil de traitement de surface extérieure et un ensemble outil accessoire associé

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541526A (en) * 1950-05-19 1951-02-13 Hendrik W Lundquist Clutch for floor conditioning machines
DE1789710U (de) * 1957-05-27 1959-06-04 Baumgarten K G Buerstenbefestigung an bodenpflegemaschinen.
US3600735A (en) * 1970-01-26 1971-08-24 Dustbane Enterprises Ltd Floor polisher drive connection
US4391548A (en) * 1981-01-15 1983-07-05 Malish Terrance J Coupling device for floor maintenance machines
DE8224041U1 (de) * 1982-08-26 1983-04-14 Eugen Gutmann GmbH & Co KG, 7250 Leonberg Kreisscheibenfoermiger buerstenkoerper aus kunststoff
DD237788A1 (de) * 1985-06-03 1986-07-30 Altenburg Elektrowaerme Vorrichtung zur loesbaren befestigung von arbeitswerkzeugen an fussbodenpflegemaschinen
DE8617171U1 (de) * 1986-06-27 1986-10-09 Hako-Werke GmbH & Co, 2060 Bad Oldesloe Fahrbare Bodenreinigungsmaschine
DE4215802C2 (de) * 1992-05-14 1996-01-25 Eugen Gutmann Gmbh & Co Kg Kupplungseinrichtung
US5645365A (en) * 1992-11-04 1997-07-08 The Malish Brush & Specialty Company Coupling device for floor maintenance machines
DE9302184U1 (de) * 1993-02-16 1993-04-08 Peters, Heinrich Josef, 4178 Kevelaer Schnellkupplung für eine Bodenreinigungsmaschine
IT1271476B (it) * 1993-10-04 1997-05-28 Pulimat Spa Dispositivo per l'applicazione ed il distacco automatico delle spazzole in macchine lavasciuga pavimenti
DE19505344C1 (de) * 1995-02-17 1996-09-26 Kaercher Gmbh & Co Alfred Kupplungsvorrichtung für ein Hartflächenreinigungsgerät

Also Published As

Publication number Publication date
WO2012098259A1 (fr) 2012-07-26
EP2665388A1 (fr) 2013-11-27
DE102011002978B4 (de) 2012-08-16
DE102011002978A1 (de) 2012-07-26
PL2665388T3 (pl) 2015-03-31
ES2529996T3 (es) 2015-02-25

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