EP2020192A1 - Drehbürste insbesondere für Gewebe - Google Patents

Drehbürste insbesondere für Gewebe Download PDF

Info

Publication number
EP2020192A1
EP2020192A1 EP08425509A EP08425509A EP2020192A1 EP 2020192 A1 EP2020192 A1 EP 2020192A1 EP 08425509 A EP08425509 A EP 08425509A EP 08425509 A EP08425509 A EP 08425509A EP 2020192 A1 EP2020192 A1 EP 2020192A1
Authority
EP
European Patent Office
Prior art keywords
support body
bar
axis
receiving
brush according
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.)
Withdrawn
Application number
EP08425509A
Other languages
English (en)
French (fr)
Inventor
Guido Giorgetti
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.)
Unitech Textile Machinery SpA
Original Assignee
Unitech Textile Machinery SpA
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 Unitech Textile Machinery SpA filed Critical Unitech Textile Machinery SpA
Publication of EP2020192A1 publication Critical patent/EP2020192A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/001—Cylindrical or annular brush bodies
    • A46B13/005—Cylindrical or annular brush bodies made up of a series of longitudinal strips or segments
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B13/00—Brushes with driven brush bodies or carriers
    • A46B13/02—Brushes with driven brush bodies or carriers power-driven carriers

Definitions

  • the present invention relates to a rotating brush, and in particular to a rotating brush of the type designed for treating fabrics.
  • the brushes currently known for the surface treatment of fabrics are incorporated in brushing machines having a feed path for feeding a continuous web of fabric, on a surface of which more brushes act, arranged in succession.
  • the brushes for the surface treatment of fabrics, and in particular of fabrics in the shape of continuous web comprise a shaft rotatable around an axis and supported by end bearings, and a grooved body integral with the shaft having an extension, along said axis, corresponding to the entire length of the brush.
  • the grooved body has a plurality of grooves, inside which it is possible to insert in a slidable manner respective bars or flexible strips counter-shaped with respect to the grooves and supporting a plurality of flexible fringes or bristles suitable to provide a brushing effect on the fabric.
  • grooves extend along an entire longitudinal development of the brush and are parallel to the axis of rotation of the brush itself. Since the bars are suitable to be held inside the respective grooves by means of a grooved coupling, i.e. by means of undercuts, the bars can be therefore inserted in the grooves, and can be extracted from them, through sliding along the axis of rotation of the brush.
  • each bar (which is necessary, for example, in order to regenerate or to replace the fringes or bristles), is carried out by withdrawing it entirely from the respective groove according to a movement parallel to the axis of rotation of the brush, until the bar is entirely disengaged from the grooved body.
  • the technical aim of the present invention is therefore to provide a rotating brush, in particular for fabrics, that allows the disadvantages described above to be at least partly alleviated.
  • the object of some embodiments of the invention is to provide a rotating brush, in particular for fabrics, which allows simple and fast replacement of the flexible fringes or bristles carried by the brush itself.
  • the brush includes a core or support body, on which one or more sets of receiving members are provided in a longitudinal alignment.
  • a respective bar is engageable with the support body by engaging corresponding connection members arranged along said bar with corresponding receiving members on the support body.
  • a space is provided between adjacent receiving members of the support body, such that a limited longitudinal movement, i.e. a movement substantially parallel to the rotation axis of the brush, is sufficient to engage or disengage the bar to or from the support body or core of the brush.
  • each bar can be connected to the body by a combined radial and axial movement, which brings the connection members into alignment with the receiving members first, and then into engagement therewith. Disengagement is achieved with a reverse sequence of motion.
  • connection members and receiving members are preferably in the form of projections on the bar(s) and receiving seats on the core or support body of the brush.
  • a free space here below also called maneuvering space, is provided between adjacent and longitudinally aligned receiving members, i.e. receiving seats provided on the support body.
  • number 1 indicates, in its entirety, a brush according to the present invention.
  • the brush 1 can be used in a brushing machine, in particular of the type suitable to carry out a surface treatment on a continuous web fabric.
  • the brush 1 comprises a support body 2, developing around an axis X matching with the axis of rotation of the brush 1, and a plurality of bars 3, each of which supporting a group 4 of flexible fringes or bristles.
  • the term bar as used herein includes any elongated body suitable to support bristles or equivalent brushing members. The term bar therefore encompasses both a rigid or semi-rigid or even a flexible longitudinally extended support.
  • the group 4 of fringes or bristles properly defines brushing means for brushing the fabric, and in particular it defines the portion of the brush 1 suitable to come into direct contact with the web fabric, in order to perform the brushing thereof.
  • the support body 2 comprises a central portion 5, adjacent to the axis X, and a plurality of radial expansions 6, which extend from the axis X, only one of which is shown in figure 1 .
  • the central portion 5 is provided with cylindrical portions or pins T designed to engage into support bearings, not shown.
  • the radial expansions 6 are disk shaped, i.e. they develop along an entire angular development of the support body 2 and are arranged preferably perpendicular to the axis X of the support body 2, Furthermore, the radial expansions 6 have a substantially symmetrical conformation around the above mentioned axis X.
  • the radial expansions 6 are spaced from one another along the axis X, in such a way that between two consecutive radial expansions 6 a maneuvering space S is provided, the function of which will be illustrated below.
  • Each radial expansion 6 has externally, i.e. in a position more distant from the axis X, a plurality of protrusions 7 angularly equally spaced around the axis X and defining, in cooperation with each other, corresponding receiving members 7a for receiving the mentioned bars 3.
  • the receiving members 7a will be referred to as "receiving seats”.
  • the protrusions 7, as well as the receiving seats 7a defined by them, develop parallel to the above mentioned axis X.
  • Each bar 3 has an elongated conformation along the axis X, in particular it extends along the entire longitudinal dimension of the brush 1 along the axis X. Furthermore, in correspondence of a portion thereof intended to face the support body 2, each bar 3 has a plurality of connection members 8, each of which can be engaged with a respective radial expansion 6, and more specifically it can be engaged inside one of the mentioned receiving seats 7a defined by the protrusions 7. Said connection members will be referred to here below as "projections 8".
  • the coupling between the projections 8 and the receiving seats 7a defined by the protrusions 7, is a grooved coupling, i.e. a coupling with an undercut, such as a dovetail coupling, which allows the protrusions 7 to hold the respective projections 8 in a stable manner, preventing them from decoupling and moving away from the axis X.
  • this coupling is of the so-called "tail coat" type, as shown in figure 1 , in which the projections 8 and the receiving seats 7a have a trapezoidal shape.
  • a reversal arrangement, with receiving seats on the bar and projections on the support core is also possible, in which case adjacent receiving seats as well as adjacent projections would be again distanced from one another along the axial direction X for the purpose described here below.
  • the projections 8 can be engaged in a slidable manner inside the receiving seats 7a and in particular this allows insertion and extraction of the projections 8 with respect to the receiving seats 7a. Due to the parallelism between the receiving seats 7a and the axis X, the movement to be imparted to the bars 3 in order to fix them on the radial expansions 6 or to disengage them from the same expansions is therefore a movement parallel to the axis X.
  • each projection 8 is movable with respect to the support body 2 between an engage position, in which it is interlocked within a respective receiving seat 7a, and a position of disengagement, in which it is completely slipped out of the receiving seat 7a. Switching between the two above mentioned positions takes place through a movement of the bar 3 parallel to the axis X.
  • each projection 8 has a dimension, measured along the axis X of the support body 2, preferably smaller than a corresponding dimension of the mentioned maneuvering space S, in which the projection 8 is placed during demounting.
  • the bar 3 is placed in such a way that the projections 8 thereof are arranged in a position intercalated to the radial expansions 6 of the support body 2, i.e. in correspondence of the mentioned maneuvering spaces S.
  • the bar 3 are moved parallel to the axis "X in such a way that the projections 8 of the bar 3 enter into the receiving seats 7a and achieve a position, in which they are completely engaged inside them.
  • the projections 8 have a dimension greater than a corresponding dimension of the radial expansions 6, the dimension being measured along the axis X. According to embodiments not shown, this dimension can be smaller, or alternatively the projections 8 and the radial expansions can have the same dimension along the axis X.
  • the present invention achieves the object set, overcoming the typical drawbacks of the fabric brushes of the prior art.
  • the presence of a discrete number of points of attack between the bars and the support body eliminates the need for demounting the brush from the supports or bearings of the brushing machine before removing the bars, and furthermore it allows an easy demounting of the bars through a limited movement of the bars along the axis of the support body. This limited movement does not require wide spaces in correspondence of one or both the ends of the support body, and demounting the bars is very simple and can be carried out very quickly, so as to reduce the down time of the brushing machine.
  • Fig.3 shows a modified embodiment of the invention. Same or equivalent parts are designated with the same reference numbers.
  • the brush 1 includes a support body in the form of a core 2.
  • the core is provided with longitudinally extending channels, substantially parallel to the axis X of the brush.
  • Each channel can house a respective bar 3 with bristles 4.
  • the bar is provided with projections 8 engaging into corresponding receiving seats 7a defined in the respective channel.
  • the receiving seats 7a and the projections 8 are shaped such as to form a dove-tail connection. Adjacent receiving seats 7a are distanced from one another by a free space S.
  • Each bar 3 can be connected to the core forming the support body 2 by bringing the bar near the support body 2 and into the channel forming the seats 7a and spaces S. More specifically, the bar is placed with the projections S into the spaces S. Thereafter, the bar is moved parallel to the axis X of the brush 1, such that each projection 8 engages a respective receiving seat 7a.
  • a reverse motion causes disengagement of the bar from the core 2.

Landscapes

  • Brushes (AREA)
EP08425509A 2007-07-31 2008-07-25 Drehbürste insbesondere für Gewebe Withdrawn EP2020192A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITFI20070181 ITFI20070181A1 (it) 2007-07-31 2007-07-31 Spazzola rotante, in particolare per tessuti

Publications (1)

Publication Number Publication Date
EP2020192A1 true EP2020192A1 (de) 2009-02-04

Family

ID=39884257

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425509A Withdrawn EP2020192A1 (de) 2007-07-31 2008-07-25 Drehbürste insbesondere für Gewebe

Country Status (2)

Country Link
EP (1) EP2020192A1 (de)
IT (1) ITFI20070181A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8495786B2 (en) 2010-04-27 2013-07-30 Keystone Plastics, Inc. Customizable modular brush system and method thereof
EP2923602A1 (de) * 2014-03-24 2015-09-30 Koti Onroerend Goed b.v. Bürstenteilhalter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324496A (en) 1965-12-06 1967-06-13 Edward F Haracz Rotary brush
DE1290919B (de) * 1966-05-11 1969-03-20 Jacob Reislaender Ohg Walzenbesen, insbesondere fuer Strassenkehrmaschinen
US5396680A (en) * 1993-07-30 1995-03-14 Belanger, Inc. Replaceable cloth assembly for a car washing apparatus
DE202004021149U1 (de) * 1990-06-07 2007-02-22 Btd Barteldrees Gmbh & Co. Rundbürste

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3324496A (en) 1965-12-06 1967-06-13 Edward F Haracz Rotary brush
DE1290919B (de) * 1966-05-11 1969-03-20 Jacob Reislaender Ohg Walzenbesen, insbesondere fuer Strassenkehrmaschinen
DE202004021149U1 (de) * 1990-06-07 2007-02-22 Btd Barteldrees Gmbh & Co. Rundbürste
US5396680A (en) * 1993-07-30 1995-03-14 Belanger, Inc. Replaceable cloth assembly for a car washing apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8495786B2 (en) 2010-04-27 2013-07-30 Keystone Plastics, Inc. Customizable modular brush system and method thereof
EP2923602A1 (de) * 2014-03-24 2015-09-30 Koti Onroerend Goed b.v. Bürstenteilhalter
US9480329B2 (en) 2014-03-24 2016-11-01 Koti Onroerend Goed B.V. Brush parts holder

Also Published As

Publication number Publication date
ITFI20070181A1 (it) 2009-02-01

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