EP2903478A1 - Synthetischer besen - Google Patents
Synthetischer besenInfo
- Publication number
- EP2903478A1 EP2903478A1 EP13745655.4A EP13745655A EP2903478A1 EP 2903478 A1 EP2903478 A1 EP 2903478A1 EP 13745655 A EP13745655 A EP 13745655A EP 2903478 A1 EP2903478 A1 EP 2903478A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bristle
- fibers
- synthetic
- broom according
- carpet
- 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.)
- Granted
Links
Classifications
-
- 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
- A46B3/18—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier the bristles being fixed on or between belts or wires
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B13/00—Brushes with driven brush bodies or carriers
- A46B13/001—Cylindrical or annular brush bodies
- A46B13/006—Cylindrical or annular brush bodies formed by winding a strip tuft in a helix about the body
-
- 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 invention relates to a synthetic broom, in particular a grass brush, comprising a handle and a bristle part of fibers made of a synthetic material.
- the traditional Indian grass broom is the preferred cleaner in India. It consists of a handle of about half a meter in length and an approximately as long frond with fibers of grass. Depending on the quality, about 300 g of grass are used for the frond. To sweep, the user takes the broom in one hand, bends so far forward that about 30% of the broom touches the ground, and guides the broom in that pose to remove the dirt from the floor.
- a disadvantage of the traditional Indian grass broom is its low durability. The floors in Indian households are usually very hard. Depending on the quality and use, therefore, the durability of a grass broom is only between about three to six months. Another disadvantage is that it loses particles and later also entire grass tufts during the entire lifetime. Also, the necessary acreage for the grass for making the broom are limited.
- the grass fronds are preferably made of grass, which is grown specifically for this purpose in the northeastern regions of India.
- a broom of the generic type consists of a handle and a bristle portion of synthetic fibers, wherein the fibers are held in the manner of a bottle brush by twisted wires together.
- Grass broom as close as possible to a traditional grass broom in terms of its fiber volume and volume, usually several twisted wires are combined with fibers to form a bristle part.
- the twisted wires extend in the interior of the bristle part over a length of about two-thirds of the bristle part.
- the known synthetic grass brush is characterized by a high durability and also loses no particles, but has the disadvantage that its service properties are significantly worsened by the twisted wires. While the traditional grass broom is very soft and clings to the soil to be cleaned, the known synthetic broom is relatively stiff. In particular, when the wires touch the ground during bending, the rigidity of the bristle portion increases abruptly. Presentation of the invention
- the object of the invention is therefore to develop a synthetic broom of the type mentioned so that it is simple and inexpensive to produce and also when using synthetic fibers
- the bristle part comprises at least one bristle carpet of parallel juxtaposed fibers which are connected together along a line or band-shaped connection region, wherein the bristle carpet is wound helically.
- a bristle carpet in the context of the invention is usually a band-like
- Sheet which comprises at least one layer of substantially parallel juxtaposed fibers which are interconnected in a line or band-shaped connection region.
- the linear or band-shaped connection region extends substantially perpendicular to the fiber arrangement.
- Synthetic grass brush according to the invention thus largely corresponds in its use properties to a traditional grass brush.
- a rod-shaped flexible core is provided, on which the bristle carpet is wound helically.
- the rod-shaped flexible core carries the helically wound bristle carpet and thus gives it an additional mechanical stability. Furthermore, the springback behavior of the helically wound bristle carpet is improved by the rod-shaped flexible core.
- the bristle carpet can also be reinforced in its connection region such that the helical winding is intrinsically stable and does not require a supporting element for stabilization. But also with this
- a flexible core may be provided to the
- the fibers of the first layer are identical to the fibers of the second layer.
- the fibers are joined together in an edge region.
- This embodiment has the advantage over the previous one that the fiber length can be halved.
- the fibers can be held in the edge region, for example, by a U-profile extruded onto the bristles. This can be a
- Plastic material can be selected, which is malleable to an intrinsically stable coil. In this case, no supporting element for stabilizing the helically wound bristle carpet required. However, as already mentioned above, it may nevertheless be expedient to provide a flexible rod-shaped core in order to support the springback after deflection.
- connection region relative to the fiber orientation
- connection region obliquely from one edge region to the opposite. This makes it possible to set a length profile of the fibers along the bristle part.
- the fibers are preferably welded together in the connection region. This can be done with or without additional welding body, such. As welding strips or sweatband done. According to a further preferred embodiment of the invention, the fibers can also be glued together in the connection region, for. B. by means of additional aids, such as an adhesive tape.
- inventive broom also in its appearance one
- the bristle part to increase the number of bristles comprises a plurality of helically wound bristle carpets.
- Grass brooms can be varied over the formation of the coil, for example, over the number of turns, their pitch, the diameter of the coil, etc. within wide limits.
- the helix can be formed differently in different regions of the bristle part.
- greater flexibility in the lower portion of the bristle portion of the broom is achieved by increasing the number of turns per unit length toward the bottom of the broom.
- the same effect can be achieved in that the flexible rod-shaped core to the lower end of the
- Typical dimensions for the flexible rod-shaped core are: length: 20 cm - 70 cm, preferably 55 cm; Diameter: 2 mm - 35 mm, preferably 6 mm - 25 mm.
- the synthetic grass brush according to the invention corresponds in its
- the length of the helix depends on the desired length of the bristle part and is preferably between 30 and 70 cm.
- Bristle part is chosen so that it corresponds to that of a natural grass broom and is preferably between 50 mm and 150 mm. If a flexible rod-shaped core is provided, its diameter must be adapted accordingly.
- the flexible rod-shaped core consists of a plastic material, particularly preferably of PP (polypropylene), PE (polyethylene), EVA (ethylene-vinyl acetate) or a
- the flexible rod-shaped core which can also be formed as a hollow body, ie as a tube, not only gives the broom its stability, it also supports the springback behavior of the bristle part after deformation.
- the positioning of the bristle carpet on the core can be simplified by providing a groove or positioning ribs on the outer circumference of the core.
- the flexible rod-shaped core can be profiled. This has the advantage that the tool for producing the core can be made simpler.
- Connecting element for connecting the bristle part to the handle
- connection element not only facilitates the
- the assembly of a synthetic grass broom according to the invention is preferably carried out as follows:
- the flexible rod-shaped core which may for example be a piece of hose, is attached to a nozzle-shaped end of the connecting element.
- Connecting element can also be integrally formed and uniform material. Subsequently, the bristle carpet is wound from the top of the core starting helically on the core, wherein the winding for better connection of bristle carpet and
- the Fixing the bristle carpet to core and connecting element can be done by tacking.
- the preassembled bristle part is then inserted with the corresponding end of the connecting element in a located at the bristle part facing the end of the handle hollow cylindrical receptacle.
- Connection with the handle can in this case cohesively, are formed.
- positive and / or non-positive connections such as clamping, latching or screw connections are used.
- locking elements are provided on the connecting element, which with
- the latching elements can be configured so that the latching connection is detachable or not detachable.
- Polypropylene is preferably used as the fiber material for the bristle carpet, with admixtures of other polymers being particularly preferred. Fibers made of polypropylene or predominantly
- Polypropylene has the required durability and is also very cost effective.
- Other plastics such as PET (polyethylene terephthalate), PS (polystyrene), PVC (polyvinyl chloride) can also be used.
- fibers of different materials for example the above, can be combined with each other. In this case, both fiber mixture can be used, as may be provided in different areas of the broom different fibers.
- the length of the fibers is preferably between 150 and 700 mm, more preferably about 400 mm. Shorter fibers have the disadvantage that, when swept, few fibers are in contact with the ground, or the flexible core may easily come into contact with the ground. For longer fibers, the problem arises that the bristles deform too much, or the required pressure during sweeping can not be applied. Alternatively, the bristle diameter would have to be increased for long bristles, which would increase the total weight of the broom. In the case of a connection of the fibers in an edge region, the
- Fiber length be halved from the above values.
- the fiber diameter is preferably between 0.2 and 1.5 mm, more preferably about 0.3 mm to 0.6 mm.
- Thinner fibers have the disadvantage that they deform too easily at the preferred length or become too flexible, whereby the cleaning performance decreases. For thicker fibers, the stiffness increases and the fibers do not conform so well to the floor (poor cleaning performance). In addition, the number of bristles usually decreases at the same application weight.
- fibers of different diameters e.g. in the form of a mixture. But there can also be fibers with
- the profile of the bristles used may be round, oval, star-shaped, rectangular, diamond-shaped or tri-pointed (trilobate).
- the dreispitzförmige design has the advantage that the flexural rigidity of such a bristle is similar to a round bristle, but by the three-pointed design, the material usage can be reduced.
- the fiber ends are preferably split. They can be cut open with knives, for example. Preferably, however, the fiber ends are machined whereby the fibers, when made from a plurality of immiscible materials, split up.
- the fiber weight is preferably between 100 g and 400 g. At low fiber weights arise on the one hand, a poor quality impression and on the other a poor cleaning performance. At higher fiber weights, the broom becomes too heavy and therefore unwieldy or too expensive.
- the handle can be made of PP (polypropylene), HDPE (high density polyethylene, PS (polystyrene) or ABS (acrylonitrile butadiene styrene), of course recycled materials or materials from renewable raw materials can be used.) HDPE is preferred as this material is cheap is and can be processed in the economic blow molding process.
- Figure 1 is a schematic side view of a synthetic grass brush according to a preferred embodiment of the invention.
- FIGS. 2a - c preferred embodiments for the arrangement of
- Fig. 3 is an enlarged section of a lateral
- Sectional view of a grass broom according to the invention in which the bristle part is connected via a connecting element with the handle;
- the synthetic grass brush 1 shows a synthetic grass brush 1 according to a preferred embodiment of the invention.
- the synthetic grass brush 1 has a handle 2 and a bristle part 3.
- the bristle part 3 is formed according to a preferred embodiment of the invention by a bristle carpet 5 of parallel juxtaposed along a line or band-shaped connection region 7 interconnected synthetic fibers 4, wherein the bristle carpet 5 is wound helically.
- the Fign. 2a to 2c show by way of example and without limitation the
- FIG. 2a shows a bristle carpet 5, in which the fibers 4 are connected to one another in an edge region 6.
- the connecting region 7 located in this edge region is formed in the illustrated embodiment by a U-profile extruded onto the bristles.
- the connecting portion 7 is arranged centrally.
- This can be a length profile of the fibers 4 set along the bristle part 3.
- the fibers are preferably welded together in the connection region. This can be done with or without additional welding body, such. As welding strips or sweatband done.
- the fibers can also be glued together in the connection region, for. B. by means of additional aids, such as an adhesive tape.
- Fig. 3 is a grass brush according to another preferred
- the connecting element 12 has in the illustrated embodiment without limitation the
- the bristle part 3 is formed with the fibers 4 by the bristle carpet 5 wound on the flexible core 10 and the front portion 12a of the connecting member 12.
- the connecting element has a subsequent to the front portion 12 a rear portion 12 b, which is enlarged relative to the portion 12 a in diameter and in a radial plane with at
- Outer circumference circumferential locking lugs 13 is provided.
- the handle 2 is provided at its end facing the bristle part with a hollow cylindrical receptacle 15 which has an inwardly facing circumferential groove 14 in a central region.
- the connecting element 12 is located with its rear portion 12 b in the hollow cylindrical receptacle 15, wherein the locking lugs 13 are engaged behind the groove 14.
- the latching connection is not solvable.
Landscapes
- Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012019216.9A DE102012019216A1 (de) | 2012-10-01 | 2012-10-01 | Synthetischer Besen |
| PCT/EP2013/066368 WO2014053264A1 (de) | 2012-10-01 | 2013-08-05 | Synthetischer besen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2903478A1 true EP2903478A1 (de) | 2015-08-12 |
| EP2903478B1 EP2903478B1 (de) | 2019-01-09 |
Family
ID=48918409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP13745655.4A Active EP2903478B1 (de) | 2012-10-01 | 2013-08-05 | Synthetischer besen |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2903478B1 (de) |
| CN (1) | CN104736014B (de) |
| DE (1) | DE102012019216A1 (de) |
| WO (1) | WO2014053264A1 (de) |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US183458A (en) * | 1876-10-17 | Improvement in dusting-brushes | ||
| US1617764A (en) * | 1923-10-08 | 1927-02-15 | Thomas H Lawrence | Brush and broom attachment |
| US3207556A (en) * | 1964-10-02 | 1965-09-21 | Leo L Lechene | Method of assembling bristles for commercial brooms |
| GB1457074A (en) * | 1974-02-07 | 1976-12-01 | Schlegel Uk Ltd | Manufacture of brushes |
| JPS5560863U (de) * | 1978-10-23 | 1980-04-25 | ||
| US6096151A (en) * | 1998-06-05 | 2000-08-01 | E. I. Du Pont De Nemours And Company | Method and apparatus for making articles having bristles |
| US20050285439A1 (en) * | 2004-06-25 | 2005-12-29 | Kubaitis William J | Method for improving brooms |
| JP4521346B2 (ja) * | 2005-10-04 | 2010-08-11 | 株式会社コマ・ホームズ | 静電式塵埃吸着具およびその製造方法 |
| US7748073B2 (en) * | 2005-11-05 | 2010-07-06 | Nguyen Manh T | Sweeping device |
| KR100708583B1 (ko) * | 2006-07-04 | 2007-04-18 | 이필희 | 먼지떨이개 |
| JP2012187307A (ja) * | 2011-03-11 | 2012-10-04 | Kowa Co Ltd | ブラシ用毛材 |
-
2012
- 2012-10-01 DE DE102012019216.9A patent/DE102012019216A1/de not_active Ceased
-
2013
- 2013-08-05 WO PCT/EP2013/066368 patent/WO2014053264A1/de not_active Ceased
- 2013-08-05 CN CN201380050580.9A patent/CN104736014B/zh active Active
- 2013-08-05 EP EP13745655.4A patent/EP2903478B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2014053264A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104736014A (zh) | 2015-06-24 |
| WO2014053264A1 (de) | 2014-04-10 |
| DE102012019216A1 (de) | 2014-04-03 |
| CN104736014B (zh) | 2018-02-09 |
| EP2903478B1 (de) | 2019-01-09 |
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