EP1021971A1 - Touffe de filaments absorbant par capillarité - Google Patents

Touffe de filaments absorbant par capillarité Download PDF

Info

Publication number
EP1021971A1
EP1021971A1 EP99124358A EP99124358A EP1021971A1 EP 1021971 A1 EP1021971 A1 EP 1021971A1 EP 99124358 A EP99124358 A EP 99124358A EP 99124358 A EP99124358 A EP 99124358A EP 1021971 A1 EP1021971 A1 EP 1021971A1
Authority
EP
European Patent Office
Prior art keywords
bundle
bristle filaments
bristle
plastic injection
frame part
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
Application number
EP99124358A
Other languages
German (de)
English (en)
Other versions
EP1021971B1 (fr
EP1021971B9 (fr
Inventor
Ralf Lindner
Heinrich Iglseder
Ludger Graute
Stephen Peter Dieudonné
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding 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
Priority claimed from DE19947459A external-priority patent/DE19947459A1/de
Application filed by Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP1021971A1 publication Critical patent/EP1021971A1/fr
Publication of EP1021971B1 publication Critical patent/EP1021971B1/fr
Application granted granted Critical
Publication of EP1021971B9 publication Critical patent/EP1021971B9/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • A46B3/08—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping
    • A46B3/10—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping into rings or the like

Definitions

  • the invention relates to a capillary absorbent Bundles of bristle filaments, which are bristle filaments are summarized by a frame part.
  • Such bundles of bristle filaments are in a wide variety Species known, for example in so-called Paintbrushes.
  • a fluid can Capillaries defined from a tank to a surface are applied, including the capillary cross section or the capillary diameter to the fluid and the wetting surface is matched.
  • the bristle filaments are used to form the absorbent bundle in the Usually pressed mechanically, for example between three bristle filaments each have a capillary gusset forms. The pressing takes place for example by means of Wedges or pressed metal strips.
  • the invention Design still proves to this effect as advantageous that no additional fastenings in the form of latching or pressing as well as none subsequent sealing of the edge areas necessary is.
  • Next is by overmolding the bristle filaments with plastic an optimal adjustment of the capillary diameter possible for the respective application.
  • a porosity distribution is also the Capillary feed unit adjustable.
  • a high level of process reliability is given by the fact that the method for Overmolding the bristle filaments with plastic only depends on the spray parameters. It can also be provided that the frame part under on both sides Leave a free length of the bristle filaments on this is injection molded in the plastic injection molding process.
  • the frame part is designed as an integral ring body.
  • the frame part in this way to train that this includes the bristle filaments and at the same time penetrates the bundle to be formed like a bridge, with which bundle partial areas are formed. Also proves it is advantageous in further training that the Frame part that holds bristle filaments together under tension.
  • the bristle filaments are in one Development of the subject of the invention on a front edge of the bundle joined together. This can For example, be provided that the bristle filaments one end edge of the bundle glued together are. Alternatively or in combination, this can also be done be provided that the bristle filaments on a Front edge of the bundle are jammed together. Further alternatively or in combination, it is proposed that that the bristle filaments on one end edge of the bundle are welded together.
  • the bristle filaments are loose be inserted into the injection mold and during of umapritzen on the head side by injected Plastic are connected together so that the Bristle filaments on one end edge of the bundle in the Plastic injection molding processes are interconnected.
  • the capillary diameter is in the invention Training depends on the externally applied Pressure on the capillary delivery system. This pressure can as preferred, in the injection molding machine on the one hand the closing pressure of the tool and the other the spray pressure can be adjusted. The is preferred Pressure in the injection molding machine by the injection pressure in the Interaction with the closing pressure of the tool set. This makes it possible to use the capillary system to optimally match the respective requirements. Bristle filaments are preferred used, which have a diameter of 10-300 microns exhibit.
  • the bristle filaments Summary frame part according to the invention in the plastic injection molding process is produced, a results further advantage in that the frame part is integral sprayed with a connection component, for example a tank can be.
  • a connection component for example a tank
  • the frame part and the connecting component Made in one go, with involvement the combined bristle filaments.
  • the connection component is a tank, so the bristle filaments positioned in the course of the spraying process, that one free ends in the to be created Immerse the tank.
  • That with a molded frame part trained bundle can also from other capillary units, such as sintered materials, Tissue or sponges.
  • the invention further relates to a bristle strip, which is composed of bundles of bristle filaments.
  • a bristle strip is from the DE-A1 196 11 371 known.
  • the content of this disclosure is hereby incorporated in full in the revelation present invention included, also to the Purposes, features of this patent application in claims to include the present invention.
  • There is a bristle strip shown and described which your liquid application on a surface to be cleaned, serves in particular vertical surface, whereby by capillary action a cleaning fluid from a storage tank is worn on.
  • the bristle filaments at the same time easier
  • the bristle strip is divided into individual bundles.
  • both the frame part and the integral molded crossbars partially in the intermediate areas of outer bristle filaments, optionally under Merging with these.
  • the bristle filaments are also through the cross struts or the frame part held together under tension.
  • a bristle filament to bind each bundle together at one end edge, For example, to glue, jam or with each other to weld.
  • the Front edges also in plastic injection molding be connected.
  • a connection component for example a tank
  • the invention further relates to a method for Production of a bristle filament by capillary action absorbent bundle, which bristle filaments summarized by a frame part are.
  • a procedure for Production of a bristle filament by capillary action absorbent bundle which bristle filaments summarized by a frame part are.
  • capillarity by in the course of an injection molding process in a plastic injection mold applied pressure to the bundle is set, according to this configuration an optimal adjustment of the capillary system to the given the respective requirements.
  • the capillary diameter between the bristle filaments adjustable.
  • the pressure by the closing pressure of the plastic injection mold is set.
  • the pressure by the Spray pressure is set.
  • the frame part is integral sprayed with a connecting component, for example a tank is, which results in a component reduction.
  • a connecting component for example a tank is, which results in a component reduction.
  • the invention also relates to a plastic injection mold for insert molding an insert, for example from Bundles of collapsible bristle filaments, in particular a plastic injection mold for use in one Method according to one or more of claims 15-23, with two tool shapes.
  • the encapsulation of insert parts in injection molding tools is state of the art known. Here, part is closed before the Tool inserted and then with a Overmoulded material. The insert parts can both manually and automatically into the tool be inserted.
  • a disadvantage of these known solutions is on the one hand that the inserts are only in allowed to move within a narrow tolerance range. About that In addition, it proves disadvantageous that the pressure depends on the closing pressure of the tool, the pressure being constant in the entire insert acts.
  • Another alternative is hydraulic pressurization of the stamp.
  • a direction of movement and / or a path of movement of the stamp different from that The closing direction of the tool is.
  • the pressurization of the Stamp regardless of the closing pressure of the tool is.
  • pressurization of the insert can by means of the stamp on the item to be held Material can be set, this without interference the tool closing pressure.
  • several stamps which can be controlled independently of one another are provided are.
  • the one independent of the closing path of the tool For example, the stroke of the stamp depends on the tolerances the insert or the setting behavior of bristle arrays. An end stop is also possible.
  • the design of the cavity is determined by the stamps are not restricted.
  • the embodiment according to the invention is an extrusion coating of pressure sensitive materials as well as strong Tolerant materials possible. Furthermore this results in the possibility of an encapsulation of bristle arrays, fabrics, textiles etc. Furthermore the seal of the cavity proves to be, for example continuously tolerant through the tool Roll goods that are partially overmolded will be considered beneficial.
  • the Baling pressure adjustable by using several stamps depending on the position of the insert, which also over the length of an insert, for example in Form of bundle-shaped bristle filaments different preloads to achieve different Capillarities can be achieved.
  • Fig. 1 Is shown and described initially with reference to Fig. 1 is a window cleaning attachment 1, the suction line is connected to a vacuum cleaner 2nd
  • a bristle strip 5 supported in a tank 3 of fluid 4 .
  • the latter consists of bundles 6 of Bristle filaments 7 together.
  • the one to the bristle bar 5 bundles 6 are combined by capillary action absorbent, for applying the in the tank 3rd stored fluid 4 on a surface 8 to be cleaned.
  • 3 to 6 are two embodiments a bundle 6 of bristle filaments 7 shown.
  • the bristle filaments 7 of each bundle 6 are through a frame part 9 summarized, which frame part 9 with partial penetration into intermediate areas 10 by Outer bristle filaments 7 'to the bristle filaments 7 in Plastic injection molding is injected.
  • the outer bristle filaments 7 'fused to the molded frame part 9 are (see Fig. 7).
  • the frame part 9 leaving a free length on both sides the bristle filaments 7 are injection molded onto them, the Frame part 9 essentially as an integral ring body is trained.
  • the training is selected so that the Bristle filaments 7 through the frame part 9 under tension are held together, which preload depends is of the desired capillarity of the one to be formed Bundle 6.
  • the bias in the longitudinal direction of the Bristle filaments 7 on one side of the frame part 9 different from the bias on the other Be side of the frame part 9.
  • the bristle filaments 7 are on one end edge 13, preferably the front edge assignable to the tank 3 of bundle 6 connected together. That's how they are Bristle filaments 7 in that shown in FIGS. 3 and 4 Embodiment glued together.
  • the connection area is provided with the reference number 14.
  • FIGS. 5 and 6 are the end edges 13 of the bristle filaments 7 in Plastic injection molding process linked together.
  • a bristle strip 5 of bundles 6 according to FIG. 8 is preferred, which is the Bundle 6 outside surrounding frame part 9 and that Bundle 6 separating cross bars 15 integrally in the plastic injection molding process are manufactured.
  • the Bundle 6 outside surrounding frame part 9 is the Bundle 6 outside surrounding frame part 9 and that Bundle 6 separating cross bars 15 integrally in the plastic injection molding process are manufactured.
  • FIGS. 8 and 9 is a in the plan triangular shape of each bundle 6 chosen.
  • the bristle strip 5 thus formed thus has several each under tension between the frame part 9 and the crosspieces 15 held bundle 6, also here using plastic bristle filaments Fusion of outer bristle filaments and frame part 9 or crossbars 15 is advantageous.
  • the bristle strip composed of bundles 6 5 is a simple and reliable seal and attachment of capillary strips / bristle filaments
  • a plastic tank 3 The invention relies on being one-sided to a capillary unit summarized bristle filaments 7, which have a diameter range of approx. 10-300 ⁇ m, with a Plastic frame (frame part 9) are overmolded.
  • the bristle filaments 7 can be together glued, jammed or welded on the face his. Solutions are also conceivable in which the Bristle filaments 7 loosely placed in an injection mold and on the face during the molding process through the injected plastic with each other get connected.
  • the capillary diameter is in the described embodiments depending on the applied from the outside Pressure on the capillary delivery system.
  • This pressure can in the injection molding machine on the one hand by the closing pressure of the tool and the other by the spray pressure can be set. This makes it possible the capillary system optimally to the respective To coordinate requirements.
  • the configuration according to the invention is an optimal one Matching the capillary diameter to the respective one Application possible.
  • the porosity distribution the capillary feed unit adjustable.
  • 11 and 12 are a plastic injection mold schematically 16 for the encapsulation of an insert shown.
  • the insert is a large number from, to a bundle 6 combinable bristle filaments 7.
  • the plastic injection mold essentially settles together from two molds 17, 18 and two in a tool mold 17 slidably mounted star beads 19, 20 together.
  • the punches 19 and arranged in the mold 17 20 are independent of a closing and / or opening movement the molds 17, 18 relocatable. Of further the direction of movement and / or the Path of movement of each stamp 19, 20 to each other and also different for the closing direction of the tool 16 his.
  • the insert - here the bristle filaments 7- defined and independent of the closing pressure of the tool 16 can be pressurized (F1 or F2).
  • the direction of the pressurization is independent from the closing direction (arrows r) of the tool 16.
  • the pressurization on the stamps 19, 20 can, for example, by means of springs, spring elements, done pneumatically or hydraulically.
  • independent the punch stroke is from the closing path of the tool 16. This can depend on the tolerances of the insert or the setting behavior of the inserted Bristle filaments 7. In addition, there is also a End stop possible.
  • the design of the cavity 21 is determined by the one chosen Design by the stamp 19, 20 not restricted. Rather, these stamps 19, 20 can be used directly as a slide for the removal of undercuts can also be used.
  • stamp 19, 20 independently of this in the direction of the insert -bristle filaments 7- moves here to Clamping the same and to form a cavity 21 between the stamps 19, 20 (see FIG. 12).
  • stamps 19, 20 are also different pressing pressures adjustable on the insert, with which different Setting behavior of the bristle filaments 7 in the areas assigned to the respective stamp become. So experienced in the illustrated embodiment the area of the bristle filaments assigned to the stamp 20 7 a greater bias than that Stamp assigned to area 19.
  • this different Preloading results after overmolding of the bristle bundle with plastic on both sides of the frame part thus formed different Capillarities.
  • FIG. 13 is a further embodiment of the Plastic injection mold 16 shown.
  • a further cavity 22 is provided to form a connecting the end edges 13 of the bristle elements 7, Blanket 14 produced by plastic injection molding.
  • both those of the finished Component (overmolded bundle 6 or bristle strip 5) as well as that of the plastic injection mold 16 and of the process for overmolding the bundles 6 are also more absorbent due to capillary action Bundles of bristle filaments conceivable, for example at Manufacture of bundles for brushes or other bristles exhibiting body.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also an absorbent by capillary action Bundle, in which the pretension in the longitudinal direction the bristle filaments 7 on one side of the frame part 9 different from the preload on the other side of the frame part 9.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also an absorbent by capillary action Bundle, in which the bristle filaments 7 made of plastic existing and that the outer bristle filaments 7 ' are fused to the frame part 9.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also an absorbent by capillary action Bundle, in which the bristle filaments 7 on one Front edge 13 of the bundle 6 are glued together.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also an absorbent by capillary action Bundle, in which the bristle filaments 7 on one Front edge 13 of the bundle 6 are clamped together.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also an absorbent by capillary action Bundle, in which the bristle filaments 7 on one End edge 13 of the bundle 6 welded together are.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also an absorbent by capillary action Bundle, in which the bristle filaments 7 on one Front edge 13 of the bundle 6 in the plastic injection molding process are interconnected.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also an absorbent by capillary action Bundle in which the bristle filaments 7 have a diameter of 10-300 ⁇ m.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a method of making one from Bristle filaments 7 existing, by capillary action absorbent bundle 6, in which the adjustment the capillary pressure through the closing pressure the plastic injection mold 16 is set.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a method of making a bundle 6, at which the pressure by the injection pressure is set.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a method of making a bundle 6, at which the pressure by the closing pressure of the plastic injection mold 16 connected to the Spray pressure is set.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a method of making a bundle 6, in which the frame part 9 integrally with a Connection component, for example a tank 3, is injected.
  • a Connection component for example a tank 3
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a method of making a bundle 6, in which the capillarity by a holding force of the stamp 19, 20 is set.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a method of making a bundle 6, in which the capillarity over the length a bundle 6 is set differently.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a plastic injection mold, in which a spring pressure on the stamp 19, 20th is made.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a plastic injection mold, in which pneumatic pressurization of the stamp 19, 20.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a plastic injection mold, in which hydraulic pressurization of the stamp 19, 20 is made.
  • Subject of the invention is also a plastic injection mold, in which the pressurization of the stamp 19, 20 independently of the closing pressure of the tool 16.
  • Subject of the invention alone or in combination with the previously explained objects of importance is also a plastic injection mold, in which several independently controllable stamps 19, 20 are provided.

Landscapes

  • Brushes (AREA)
  • Bathtub Accessories (AREA)
  • Laminated Bodies (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
EP99124358A 1998-12-22 1999-12-07 Touffe de filaments absorbant par capillarité Expired - Lifetime EP1021971B9 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19859403 1998-12-22
DE19859403 1998-12-22
DE19947459A DE19947459A1 (de) 1998-12-22 1999-10-02 Durch Kapillarwirkung saugfähiges Bündel von Borstenfilamenten
DE19947459 1999-10-02

Publications (3)

Publication Number Publication Date
EP1021971A1 true EP1021971A1 (fr) 2000-07-26
EP1021971B1 EP1021971B1 (fr) 2003-10-08
EP1021971B9 EP1021971B9 (fr) 2004-01-28

Family

ID=26050959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99124358A Expired - Lifetime EP1021971B9 (fr) 1998-12-22 1999-12-07 Touffe de filaments absorbant par capillarité

Country Status (3)

Country Link
EP (1) EP1021971B9 (fr)
AT (1) ATE251405T1 (fr)
PT (1) PT1021971E (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097322A2 (fr) * 1982-06-18 1984-01-04 Laszlo Kelemen Brosse à cheveux pour le traitement du cuir chevelu avec des substances nutritives
EP0300637A1 (fr) * 1987-07-10 1989-01-25 Vax Appliances Limited Tête de nettoyage
US5702194A (en) * 1996-07-08 1997-12-30 Hsu; Shih Hsiung Cleaner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0097322A2 (fr) * 1982-06-18 1984-01-04 Laszlo Kelemen Brosse à cheveux pour le traitement du cuir chevelu avec des substances nutritives
EP0300637A1 (fr) * 1987-07-10 1989-01-25 Vax Appliances Limited Tête de nettoyage
US5702194A (en) * 1996-07-08 1997-12-30 Hsu; Shih Hsiung Cleaner

Also Published As

Publication number Publication date
ATE251405T1 (de) 2003-10-15
PT1021971E (pt) 2004-04-30
EP1021971B1 (fr) 2003-10-08
EP1021971B9 (fr) 2004-01-28

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