WO2020021579A1 - Balai à fibres partiellement croisées - Google Patents

Balai à fibres partiellement croisées Download PDF

Info

Publication number
WO2020021579A1
WO2020021579A1 PCT/IT2019/050160 IT2019050160W WO2020021579A1 WO 2020021579 A1 WO2020021579 A1 WO 2020021579A1 IT 2019050160 W IT2019050160 W IT 2019050160W WO 2020021579 A1 WO2020021579 A1 WO 2020021579A1
Authority
WO
WIPO (PCT)
Prior art keywords
strands
shoulder
fibers
broom
head
Prior art date
Application number
PCT/IT2019/050160
Other languages
English (en)
Inventor
Matteo Niccolai
Original Assignee
Fass S.P.A.
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 Fass S.P.A. filed Critical Fass S.P.A.
Priority to EP19755443.9A priority Critical patent/EP3826506A1/fr
Priority to CN201980049176.7A priority patent/CN112469310B/zh
Publication of WO2020021579A1 publication Critical patent/WO2020021579A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B9/00—Arrangements of the bristles in the brush body
    • A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
    • A46B9/025—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups the bristles or the tufts being arranged in an angled position relative to each other
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/30—Brushes for cleaning or polishing
    • A46B2200/302—Broom

Definitions

  • the present invention belongs to the sector of cleaning tools and, more specifically, to the sector of brooms for domestic use.
  • the sector is that of broom heads whose brush comprises a plurality of strands of fibers, each of which is formed of fibers having different characteristics and depart from the shoulder of the broom according to a direction of its own.
  • Brooms for domestic use comprise a head secured to a handle, the latter being formed of a sufficiently long stick as to enable a user to easily move the head of broom on the floor without having to bend his/her bust; tubular handles are known in order to reduce weight and telescopic tubular handles have also been developed to reduce overall dimensions.
  • the heads of brooms are comprised of a horizontal shoulder, transversally secured to the lower end of the handle; a plurality of strands of fibers, usually synthetic fibers, protrude from the intrados of the shoulder .
  • every strand is usually homogeneous, i.e. is made from fibers of the same type, and is particularly suitable for a specific type of cleaning.
  • the strands depart from the shoulder and their fibers progressively widen downwards, so that each of them takes a shape similar to that of a cone.
  • the portion of the strand proximal to the shoulder defines the vertex of the cone, which lays inside the shoulder.
  • the base of the cone is defined by the intersection of the strand itself with the lower cutting plane; the latter is substantially horizontal in order to be parallel to the floor to be swept.
  • the portion of the cone proximal to the shoulder is thus narrower than the distal portion; fiber space out from each other, hence stands progressively widen when moving towards the distal portion.
  • the strands formed of the stiffest fibers are placed at one or both ends of the shoulder and are laterally inclined so that their ends protrude outwards, in order to reach corners, edges, and interstices, more easily.
  • the strands formed of the thinnest and least stiff fibers are generally less inclined and protrude from the shoulder so that their ends form a barrier which removes the finest particulate without lifting them up in the air and without leaving residues on the floor after the passage of the broom.
  • the strands formed of fibers featuring a medium thickness and a medium stiffness are slightly inclined outwards, in order to convey the dirt towards the center of the broom, so as to collect the most consistent dirt, such as crumbs, hairs, and hairs of animals.
  • An important advantage resulting from the strands being inclined consists in that, in the case of strands having a non-vertical axis, the cross section that is obtained from the intersection of a conical strand with the horizontal cutting plane is wider than the section that would be obtained from the intersection of the same cutting plane with the same vertical-axis strand, and consequently every strand sweeps a wider strip of the floor.
  • the strands are arranged on several lines and the strands of every line can feature different orientations and are often inclined outwards, in particular the outwards inclination of the strands is greater in the outermost strands than that of the innermost strands.
  • the pairs formed of two strands that are equidistant from the center of the broom feature specular inclinations in every line, however, in the brooms of known types, the axis of the strands of the central portions of the broom shall be vertical in every line, otherwise the strands being inclined would leave a space in the center of the broom with no fibers in correspondence with the cutting plane.
  • Brooms are also known wherein one or both ends of the shoulder are coated by a soft and elastic material to protect pieces of furniture and walls in the case of minor impacts which might occur while the broom sweeps the floor.
  • a first object of the present invention is thus to provide a broom which presents the advantages of the strands being inclined along the complete development of the transversal shoulder and, simultaneously, does not leave empty spaces in correspondence with its own centerline.
  • a second object is also to implement a broom comprising different portions, each of which comprises strands made of fibers having different characteristics such as, for example, fibers of different diameters, different stiffnesses, different materials; every strand being homogeneous and made of fibers having the same characteristics .
  • Another object is to prevent the dirt being displaced in the direction of forward movement of the broom by adjacent strands of fibers from affecting the strands placed behind, especially when the fibers of the strands that get in contact first with dirt are made from a stiffer material.
  • a further object of the present invention is to provide a broom that protects walls and pieces of furniture in the case of minor impacts.
  • a head of broom comprising a horizontal shoulder whose extrados presents a central zone with engagement means for engaging a vertical handle and from the intrados of which a plurality of strands of fibers protrude downwards, every strand having the shape of a cone whose vertex lays inside the shoulder.
  • the portions of the strands that are proximal to the shoulder are arranged along the latter according to lines which develop along the longitudinal axis of the horizontal shoulder; the proximal portions of the strands might also be arranged according to slightly curved lines.
  • the axes of the strands that depart from the edges of the shoulder are generally inclined outwards and form an angle both with the vertical plane ZY, substantially parallel to the direction of the forward movement of the broom, and with the vertical plane ZX, substantially orthogonal to the direction of the forward movement of the broom.
  • angles formed by the axes of the strands in the same line with the plane ZX are rather modest and always of the same sign.
  • the axes of the strands in the outer lines form angles of opposite signs with the plane ZX .
  • the axes of the outermost strands in every line form angles of opposite signs with the plane ZY and this angle progressively varies upon going from one end to the other of the shoulder; a strand of fibers will always be present between one end and the other in one and the same line whose axis substantially lays in a plane parallel to the plane ZY or forms an angle with this plane smaller than the angles formed by the axes of the remaining strands in the same line.
  • said angle varies differently from one or more lines and the others, at least for a portion thereof. For example, it varies little in correspondence with the first end of the shoulder and much in correspondence with the second end in one line, whereas it varies much in correspondence with the first end and varies little in correspondence with the second end in the adjacent line.
  • the strand of one line whose axis forms the smallest angle with the plane ZY, or is even parallel to the plane ZY, is closer to one end of the shoulder than the same strand in the other line.
  • the strand whose axis forms the smallest angle with the plane ZY, or is even parallel to the plane ZY might be closer to the first end of the shoulder or closer to the second end of the latter.
  • the different lines of strands alternate to each other, for example in such a way that the vertical strand is close to an end of the shoulder in a first line and is close to the opposed end of the shoulder in the adjacent line.
  • the strands are subdivided into three portions, each of which is characterized by fibers of different thicknesses and stiffnesses.
  • the first portion comprises fibers featuring a greater thickness and is only placed in correspondence with either end of the shoulder; in this portion, the strands of fibers have a greater inclination as compared to the others, which is functional to the purpose of reaching the most difficult corners.
  • a greater thickness also implies a greater stiffness of the fibers, which imparts a resistance to the filament against any bendings that are just caused upon reaching corners being located most far away.
  • the second portion comprises fibers featuring an intermediate thickness and always includes crossed strands. It performs two main functions, the former of which consists of implementing a barrier capable of blocking the way to dirt and is much fostered by the strands being crossed; the second function performed by this portion of the broom is provided by the fibers having an intermediate stiffness, so that they are capable of removing the most stubborn stains.
  • the third portion comprises strands made of fibers featuring a lower stiffness and is softer than the other portions; for this reason, it is capable of removing the thinnest dirt and finest particulate, also thanks to the special arrangement of the strands of fibers that are thicker and less inclined in this portion than in the remaining portions.
  • Figure 1 shows a front view of an embodiment of the broom according to the present patent application, wherein the handle is not shown.
  • Handle engagement means (15) are visible on the extrados of the horizontally developing shoulder (1) for engaging the handle which, after being connected to the shoulder, extends along a vertical axis (Z) .
  • the handle includes a threaded portion which engages the inside of the threaded hole of said engagement means (15), however, other solutions are also possible such as, for instance, quick release systems.
  • the strands of fibers (2) which depart from the intrados of the shoulder (1) downwards, have vertices laying inside the shoulder (1) and are arranged according to lines that develop along the longitudinal axis (X) of the shoulder (1) ⁇
  • a first bumping element (13) and a second bumping element (14) are present at one first end (11) and a second end (12) of the shoulder respectively.
  • the left-hand side of the figure shows the strands of fibers in the first line (21) crossing those in the second line (22) and also shows that the strand of fibers in the first line (21) that forms the smallest angle with the plane ZY is closer to said second end (12) than the strand of fibers in the second line (22) that forms the smallest angle with the plane ZY.
  • This special crossing arrangement allows to block the way to dirt and makes its collection easier .
  • the crossed strands in the first two lines (21, 22) have harder fibers, so as to make removal of the most stubborn stains and their cleaning after use easier.
  • the right-hand side of the figure shows that some of the strands of fibers (2) are formed of fibers having different colors, which can be taken advantage of to indicate that these strands are more inclined than those at the other end and to emphasize that the fibers have different characteristics in some versions of the broom.
  • Figure 2 shows a rear view of the embodiment illustrated in the previous figure.
  • the strands of fibers on the right present a different color in order to highlight that the fibers are softer, so as to make removal of the smallest stains and of dust easier.
  • Figure 3 shows a perspective view of the same embodiment as shown in the previous figures.
  • Figure 4 is a top view which shows the longitudinal axis (X) of development of the shoulder (1) and the transversal axis (Y) perpendicular to the longitudinal axis (X) and to the vertical axis (Z) .
  • the transversal axis (Y) substantially coincides with the direction of the forward movement of the broom during its use, with a direction of the forward movement preferably on the side of the crossed strands of fibers.
  • Figure 5 shows a side view of a head of broom.
  • Figure 6 shows a partial top view of a head of broom, not equipped with bumping protections.
  • the circles visible in the figure correspond to those zones of the shoulder (1) from which the strands of fibers laying internally thereto come out.
  • the figure also shows that the strands of fibers (2) are arranged in such a way as to form lines (21, 22, 23, 24, 25) and that the latter run substantially parallel to each other, account being take that the transversal dimension of the shoulder is generally smaller at its ends, and also of minor modifications in their profile towards the ends, which can be taken advantage of to improve cleanliness of corners.
  • the strands of every line are not transversally aligned with the strands of the adjacent lines.
  • Figure 7 schematically shows the subdivision of the strands into three different portions of the shoulder as seen from down up.
  • the first portion (A) is the corner one, whose strands have the stiffest fibers
  • the second portion (B) is that whose strands are made of fibers featuring an intermediate stiffness and are always crossed
  • the third portion (C) is that whose strands include the softest fibers .
  • the head of broom comprises a horizontal shoulder (1) on the extrados of which engagement means (15) are present for engaging a handle which, once connected to the shoulder, develops according to a vertical axis (Z) .
  • a plurality of strands of fibers (2) each of which is shaped like a cone and presents an upper proximal portion ending in the vertex of the cone laying inside said shoulder (1), protrude from the intrados of said shoulder downwards.
  • the strands are arranged according to lines (21, 22, 23, 24, 25), which develop along the longitudinal axis (X) of the shoulder (1) .
  • the axes of at least a part of the strands are inclined both with respect to the vertical plane ZX, which passes through said longitudinal axis X, and with respect to the vertical plane ZY, orthogonal to the plane ZX .
  • the axes of the strands in one and the same line form an angle with the plane ZY, which gradually varies and whose sign changes upon moving from one end (11) to another end (12) of the shoulder (1), varying differently from one line another .
  • two outer adjacent lines of strands present their respective strands, whose axis forms the smallest angle with the plane ZY, at different distances from the first end (11) of the shoulder (1) ⁇
  • the strand whose axis forms the smallest angle with the plane ZY is alternatively closer to the first end (11) or closer to the second end (12), so that in the central portion of the broom the axes of the strands in the central portions of two adjacent lines form angles of opposed signs with the vertical plane orthogonal to the longitudinal axis (X) .
  • the lines formed by the strands are substantially parallel to each other.
  • the end distal portion of the strands is cut in accordance with a horizontal cutting plane, so as to be parallel to the floor to be swept .
  • every strand is formed of homogeneous fibers, i.e. fibers having the same characteristics in terms of diameter, stiffness, or others.
  • separate portions are present in the broom, each formed of different types of strands; in particular, strands made of stiffer fibers or strands made of softer fibers or even strands made of fibers of an intermediate type.
  • the strands formed of stiffer fibers are placed at one or both ends of the shoulder and are more inclined outwards.
  • the strands are subdivided into three portions as follows.
  • the first portion (A) comprises fibers featuring a greater thickness and stiffness and is placed at one end of the shoulder, the strands have a particularly marked outwards inclination in order to reach the most difficult corners.
  • the fibers are thicker and harder than in the remaining portions, in order to increase the resistance of filaments.
  • the second portion (B) includes fibers having an intermediate thickness and stiffness and always includes crossed strands in order to better lock the way to and remove the most stubborn stains.
  • the third portion (C) includes strands made of fibers featuring a lower thickness and stiffness, denser and less inclined than the other portions, besides being softer, and for this reason particularly suitable for removing the thinnest dirt and fine dust.

Landscapes

  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
  • Artificial Filaments (AREA)

Abstract

L'invention concerne un balai comprenant un épaulement horizontal, à partir de l'intrados duquel sortent une pluralité de brins de fibres, lesdits brins étant agencés selon des lignes se développant selon l'axe longitudinal de l'épaulement et les axes des brins des parties centrales dans au moins deux lignes adjacentes formant des angles de signe opposé avec le plan vertical perpendiculaire audit axe longitudinal dudit épaulement.
PCT/IT2019/050160 2018-07-24 2019-07-08 Balai à fibres partiellement croisées WO2020021579A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP19755443.9A EP3826506A1 (fr) 2018-07-24 2019-07-08 Balai à fibres partiellement croisées
CN201980049176.7A CN112469310B (zh) 2018-07-24 2019-07-08 具有部分交叉的纤维的扫帚

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202018000003077U IT201800003077U1 (it) 2018-07-24 2018-07-24 Scopa con fibre parzialmente incrociate
IT202018000003077 2018-07-24

Publications (1)

Publication Number Publication Date
WO2020021579A1 true WO2020021579A1 (fr) 2020-01-30

Family

ID=67660416

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2019/050160 WO2020021579A1 (fr) 2018-07-24 2019-07-08 Balai à fibres partiellement croisées

Country Status (4)

Country Link
EP (1) EP3826506A1 (fr)
CN (1) CN112469310B (fr)
IT (1) IT201800003077U1 (fr)
WO (1) WO2020021579A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269852A1 (fr) * 1986-11-22 1988-06-08 CORONET-WERKE Heinrich Schlerf GmbH Balai
EP1595473A1 (fr) * 2004-05-13 2005-11-16 Trisa Holding AG Balai et procédé de fabrication d'un balai
WO2008046456A1 (fr) * 2006-10-18 2008-04-24 Carl Freudenberg Kg Balais et leurs procédés de fabrication
DE102013000501A1 (de) * 2013-01-24 2014-07-24 Georg Harms Besen mit verschachteltem A-Borsten-Feld und einem Umrahmungs-Borsten-Feld

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA05013094A (es) * 2003-07-03 2006-03-09 Freudenberg Household Prod Lp Escoba, metodo y exhibidor de la escoba.
US20060117511A1 (en) * 2004-12-02 2006-06-08 Weaver Jace A Pushbroom with support brace
EP2272396A1 (fr) * 2009-07-09 2011-01-12 Georg Harms Balais doté d'une zone de brosses en V et d'une zone de brosses dans un cadre
WO2014099473A1 (fr) * 2012-12-21 2014-06-26 3M Innovative Properties Company Balai comprenant des soies de longueurs multiples
CN106667385A (zh) * 2015-11-06 2017-05-17 李海梅 软硬刷毛组合扫帚

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0269852A1 (fr) * 1986-11-22 1988-06-08 CORONET-WERKE Heinrich Schlerf GmbH Balai
EP1595473A1 (fr) * 2004-05-13 2005-11-16 Trisa Holding AG Balai et procédé de fabrication d'un balai
WO2008046456A1 (fr) * 2006-10-18 2008-04-24 Carl Freudenberg Kg Balais et leurs procédés de fabrication
DE102013000501A1 (de) * 2013-01-24 2014-07-24 Georg Harms Besen mit verschachteltem A-Borsten-Feld und einem Umrahmungs-Borsten-Feld

Also Published As

Publication number Publication date
IT201800003077U1 (it) 2020-01-24
CN112469310B (zh) 2022-09-27
EP3826506A1 (fr) 2021-06-02
CN112469310A (zh) 2021-03-09

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