WO2000067610A1 - Brosse de balayage - Google Patents

Brosse de balayage Download PDF

Info

Publication number
WO2000067610A1
WO2000067610A1 PCT/ZA2000/000015 ZA0000015W WO0067610A1 WO 2000067610 A1 WO2000067610 A1 WO 2000067610A1 ZA 0000015 W ZA0000015 W ZA 0000015W WO 0067610 A1 WO0067610 A1 WO 0067610A1
Authority
WO
WIPO (PCT)
Prior art keywords
sweeping
blades
brush
backing member
towards
Prior art date
Application number
PCT/ZA2000/000015
Other languages
English (en)
Inventor
George Wilson Fraser
Original Assignee
George Wilson Fraser
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 George Wilson Fraser filed Critical George Wilson Fraser
Priority to AU25166/00A priority Critical patent/AU2516600A/en
Publication of WO2000067610A1 publication Critical patent/WO2000067610A1/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
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
    • A46B3/005—Bristle carriers and bristles moulded as a unit

Definitions

  • This invention relates to a sweeping brush and more particularly a broom head which is made from a synthetic material
  • Brushes and more particularly broom heads, which are made from a synthetic material such as plastics, synthetic rubber and the like are well known
  • the bristles of the known brushes are generally parallel sided and are either round or rectangular in cross-section
  • the bristles are uniformly flexible over their lengths
  • the relatively soft bristles are moulded to depend from or pass through a backing plate of one sort or another which is fixed to the broom head and in some cases the handle socket housing is made separate from the head and later fixed to it by welding or suitable adhesive
  • bristles is now pressed into the surface as opposed to being swept from it
  • a sweeping brush according to the invention includes an integrally moulded elongated backing member and elongated sweeping blades which are substantially rectangular in cross-section and project outwardly from a common surface of the backing member with each of the sweeping blades having opposite sweeping faces which are transverse to the sweeping directions of the brush and which are tapered towards each other towards the free end of the blade
  • the edges of the blades on the sides of their sweeping faces also taper towards each other towards the free ends of the blades
  • at least a portion of the length of the sweeping faces of each sweeping blade from its free end towards the backing member is concave
  • the sweeping blades may be spaced from each other in rows on the backing member with the blades in adjacent rows being staggered so that the blades in one row overlap the spaces between the blades in an adjacent row in the sweeping direction of the brush
  • the sweeping blades in each row of blades may be progressively shorter from a central length of the row towards the longitudinal ends of the backing member
  • the brush preferably includes a bracing member in the form of a flat plate which is embedded in and extends over a substantial portion of the length of the backing member and is made from a plastics material which is significantly less flexible than the remaining brush material
  • the brush is a broom head and includes a broom handle engaging socket arrangement which is integral with the backing member material and projects outwardly from a surface of the backing member opposite the surface from which the sweeping blades project
  • the bracing plate carries an integral outwardly projecting reinforcing sleeve which is coaxially bonded to the material of the broom handle socket
  • the material from which the backing member and sweeping blades may be made is a mixture of 80% ethylene vinyl acetate resin and 20% of low density polyethylene with the mixture having a shore hardness on the A scale of between 65 and 75
  • the material from which the bracing member is made is polypropylene having a shore hardness on the D scale of between 60 and 70
  • FIGURE 1 is a front elevation of a broom head according to the invention
  • FIGURE 2 is a plan view of the Figure 1 broom head
  • FIGURE 3 is an underplan of the broom head of Figures 1 and 2,
  • FIGURES 4 and 5 are enlarged side elevations of the broom head shown sectioned on the lines 4-4 and 5-5 in Figure 1 respectively,
  • FIGURE 6 is an enlarged front elevation of a sweeper blade of the broom
  • FIGURE 7 is a side elevation of the Figure 6 blade
  • FIGURE 8 is an enlarged plan view of the blade of Figures 6 and 7 as seen from its upper end, and
  • FIGURE 9 is a fragmentary diagrammatic side elevation of two of the sweeping blades of the brush of the invention, in use, illustrating the flex of the bristles DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • the broom head 10 of the invention is shown in Figures 1 to 5 to include a backing member 12, sweeping blades 14, a handle socket housing 16 a squeegee blade 18 and a bracing member 20
  • the backing member, blades 14 and the squeegee 18 are integrally moulded from a plastic material consisting of 80% ethylene vinyl acetate resin and 20% of a low density polyethylene having a shore hardness on the A scale of between 65 and 75
  • the bracing member 20 is moulded from a substantially more rigid material such as polypropylene having a shore hardness on the D scale of between 60 and 70 which, during the moulding process of the remainder of the broom head over it, is thermally bonded in the mould to the head material
  • the bracing member 20 consists of a rectangular plate 22 which is a little smaller in dimension than the broom head in plan, an inclined reinforcing socket 24 for the socket housing 16 and two triangular bracing gussets 26, which extend from the wall of the socket 24 onto the plate 22, as shown in Figure 1
  • the material of the bracing plate 22, as mentioned above, is thermally bonded to the head material as the head material is moulded over it
  • the plate 22 may additionally, however, include a number of suitably spaced material keying apertures 28, as shown in Figure 4, further to ensure the integrity of the head materials during even the most robust use of the broom head
  • the sweeping blades 14 of the broom head are shaped as shown in Figures 6 to 8
  • the relative dimensions of the various portions of the blades are shown in millimetres in these drawings but it is to be understood that these dimensions are in no way limiting to the invention and are provided merely to illustrate the currently optimal dimensional proportionality of the blades
  • the sweeping faces of the blades are each concave to provide a scooping action while sweeping which tends to throw particulate matter being swept in the sweeping direction with very little sideways component which is not the case with bristles which are round or even purely rectangular in cross-section
  • the cross-sectional shape of the blades additionally enhances the 5
  • this embodiment of the broom of the invention carries six or seven rows of sweeping blades 14 with alternate rows being staggered so that the space between the blades of each row is covered by the blades in an adjacent row in the sweeping direction of the broom to ensure that particulate dirt does not traverse the broom head during sweeping
  • the sweeping blades 14 are made progressively shorter from the central zone of each row of blades towards the longitudinal ends of the backing member
  • the purpose of this arrangement is that when only light sweeping is required from a broom including the boom head 10, such as would generally be the case over a domestic carpet, the f ⁇ ctional sweeping resistance of the outer sweeping blades of each row of blades is eliminated or at least minimised to lighten the required sweeping pressure on the broom handle
  • the most important features of the broom of the invention are the shape of the bristle blades and the hardness of the material from which they are made.
  • conventional moulded synthetic broom bristles are uniformly or very nearly so, flexible over their lengths
  • the blades 14 of the broom head of the invention are, principally because of their two direction tapered shape and the material from which they are made, progressively more flexible towards their free ends to result in a predominantly tip flex action as illustrated in Figure 9 As is shown in Figure 9, even with moderately high sweeping pressure, in the direction of the arrow in the drawing, the 6
  • bristles of the broom of the invention do not fold up under the head 12 and jam against one another and as a result the forward sweeping efficiency of the broom is much the same as its rearward efficiency making the broom of the invention a far more useful sweeping implement than the known almost single direction sweeping synthetic brooms

Landscapes

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

Abstract

L'invention concerne une brosse de balayage et, dé préférence, un balai qui comprend un élément de support allongé intégralement moulé (12) et des dents allongées (14) de coupe sensiblement rectangulaire qui font saillie vers l'extérieur depuis une surface de l'élément de support. Chacune des dents (14) possédant des faces de balayage opposées est disposée transversalement par rapport à la direction de balayage et a une forme effilée vers l'extrémité libre de la dent. Pour plus d'efficacité, au moins une partie de la longueur des faces de balayage de chaque dent a une forme concave depuis son extrémité libre jusqu'à l'élément de support (12).
PCT/ZA2000/000015 1999-05-12 2000-02-01 Brosse de balayage WO2000067610A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU25166/00A AU2516600A (en) 1999-05-12 2000-02-01 Sweeping brush

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA993267 1999-05-12
ZA99/3267 1999-05-12

Publications (1)

Publication Number Publication Date
WO2000067610A1 true WO2000067610A1 (fr) 2000-11-16

Family

ID=25587726

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ZA2000/000015 WO2000067610A1 (fr) 1999-05-12 2000-02-01 Brosse de balayage

Country Status (2)

Country Link
AU (1) AU2516600A (fr)
WO (1) WO2000067610A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012085905A1 (fr) * 2010-12-21 2012-06-28 David Bachar Balai en silicone et procédé de fabrication d'un balai en silicone
WO2022102648A1 (fr) * 2020-11-10 2022-05-19 株式会社コーワ Outil de nettoyage et balai

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1248028A (fr) * 1959-10-28 1960-10-31 Perfectionnements aux balais
US4042995A (en) * 1976-05-24 1977-08-23 Hyman Varon Tool for removing animal hair from carpeting
EP0405819A2 (fr) * 1989-06-26 1991-01-02 Monosata S.A. Balai
EP0608669A2 (fr) * 1992-11-27 1994-08-03 Diap - S.R.L. Balai amélioré moulé en élastomère
DE4334997A1 (de) * 1993-10-14 1995-04-20 Jakob Reislaender Fabrik Tech Tellerbesen für Kehrmaschinen
WO1997014331A2 (fr) * 1995-10-20 1997-04-24 Joachim Huller Structure de poils de brosserie et sa garniture pour articles de brosserie, notamment pour balais, brosses, balais-brosses, pinceaux ou similaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1248028A (fr) * 1959-10-28 1960-10-31 Perfectionnements aux balais
US4042995A (en) * 1976-05-24 1977-08-23 Hyman Varon Tool for removing animal hair from carpeting
EP0405819A2 (fr) * 1989-06-26 1991-01-02 Monosata S.A. Balai
EP0608669A2 (fr) * 1992-11-27 1994-08-03 Diap - S.R.L. Balai amélioré moulé en élastomère
DE4334997A1 (de) * 1993-10-14 1995-04-20 Jakob Reislaender Fabrik Tech Tellerbesen für Kehrmaschinen
WO1997014331A2 (fr) * 1995-10-20 1997-04-24 Joachim Huller Structure de poils de brosserie et sa garniture pour articles de brosserie, notamment pour balais, brosses, balais-brosses, pinceaux ou similaire

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012085905A1 (fr) * 2010-12-21 2012-06-28 David Bachar Balai en silicone et procédé de fabrication d'un balai en silicone
CN102551620A (zh) * 2010-12-21 2012-07-11 大卫·巴哈 硅胶清扫器以及硅胶清扫器的制造方法
US8887344B2 (en) 2010-12-21 2014-11-18 David Bachar Silicone broom and a manufacturing method of silicone broom
WO2022102648A1 (fr) * 2020-11-10 2022-05-19 株式会社コーワ Outil de nettoyage et balai
JP7539647B2 (ja) 2020-11-10 2024-08-26 株式会社コーワ 清掃用具、箒

Also Published As

Publication number Publication date
AU2516600A (en) 2000-11-21

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