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WO2011091544A1 - Dispositif d'entraînement et pompe à piston dotée d'un dispositif d'entraînement - Google Patents

Dispositif d'entraînement et pompe à piston dotée d'un dispositif d'entraînement Download PDF

Info

Publication number
WO2011091544A1
WO2011091544A1 PCT/CH2011/000001 CH2011000001W WO2011091544A1 WO 2011091544 A1 WO2011091544 A1 WO 2011091544A1 CH 2011000001 W CH2011000001 W CH 2011000001W WO 2011091544 A1 WO2011091544 A1 WO 2011091544A1
Authority
WO
WIPO (PCT)
Prior art keywords
drive
drive housing
piston
helical spring
drive device
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.)
Ceased
Application number
PCT/CH2011/000001
Other languages
German (de)
English (en)
Inventor
Edgar Probst
Alain Probst
Ralph Probst
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.)
PROWATEC AG
Original Assignee
PROWATEC AG
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 PROWATEC AG filed Critical PROWATEC AG
Publication of WO2011091544A1 publication Critical patent/WO2011091544A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/14—Pumps characterised by muscle-power operation
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0024—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a permanently displaceable pressurising member that remain in position unless actuated, e.g. lead-screw or ratchet mechanisms, toothpaste tube twisting or rolling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B33/00—Pumps actuated by muscle power, e.g. for inflating
    • F04B33/02—Pumps actuated by muscle power, e.g. for inflating with intermediate gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
    • B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
    • B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
    • B05C17/0113—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like the piston rod being flexible or articulated

Definitions

  • the invention relates to a drive device according to the preamble of independent claim 1.
  • the invention also relates to a piston pump according to the preamble of claim 11.
  • piston pumps are often used.
  • the advance of the piston is often carried out by means of a drive device which converts a manauelle rotational movement in a suitable translational thrust movement.
  • this implementation is realized by means of spindles or racks or the like.
  • the use of spindles or racks is particularly disadvantageous when using the drive device in bulk goods.
  • spindles passing through spindles often sealing problems and is also the filling or refilling of the dispenser problematic, since here before filling the contents of the piston must first be moved back to its original position and thus there is a risk of air bubbles during filling.
  • a drive device of the generic type is to be improved, while avoiding the mentioned problems of known devices, in such a way that it is very small and structurally very easy to implement and is especially suitable for use in bulk goods.
  • piston pump is the subject of claim 11.
  • a drive device for linear shock displacement of an object to be moved comprises a winding spool rotatably arranged in a drive housing, which is rotationally drivable by a drive cap rotatable relative to the drive housing.
  • an elongated coil spring is provided which is attached at one end to the reel spool and by winding the reel spool can be unwound therefrom or unwound therefrom.
  • a guide channel is provided, through which the coil spring extends and is led out of the drive housing.
  • the winding spool and the drive cap are preferably rotatable about two mutually perpendicular axes and are kinematically coupled by means of meshing sprockets, wherein advantageously one of the sprockets is formed integrally with the drive cap and the other sprocket is integrally formed with a shaft rotatably mounted in the drive housing.
  • the winding bobbin is provided at its periphery with a helical winding groove and slidably disposed in the longitudinal direction on a shaft and rotatably coupled to the shaft.
  • the winding or unwinding process is organized and virtually frictionless.
  • the guide channel opens out coaxially with the drive cap from the drive housing.
  • the coil spring is wound so tightly that adjacent turns of the coil spring substantially abut each other when the coil spring is not wound up. This gives the coil spring in its longitudinal direction a sufficiently large (compressive) stiffness, which is suitable for the impact displacement of a linearly driven object.
  • the drive housing it is particularly expedient for the drive housing to be fastened to one end of the pump tube, wherein the section of the helical spring protruding from the drive housing runs coaxially with the pump tube.
  • the piston is provided with a matching to a fitting piece of the coil spring Zentriermulde which fixes the coil spring in its coaxial alignment, wherein the piston and coil spring are preferably coupled only to thrust.
  • the piston pump is designed as a dispenser for a dispensed filling.
  • a toothbrush attachment with a handle part and a brush part provided with bristles can be detachably fastened to the pump tube, the handle part having a supply channel through which toothpaste can be conveyed out of the pump tube into the region of the bristles.
  • Fig. 2 is an axial section along the line II-II of Fig. 1 with an attached
  • Fig. 3 shows a cross section through the drive device according to the line III-III of
  • the illustrated drive device comprises an externally substantially cylindrical drive housing 10 which receives a sprocket 12 designed as a spur gear and a winding spool 14.
  • the sprocket or spur gear 12 is integrally formed with a shaft 16 which extends transversely to the longitudinal axis A of the drive housing 10 and is rotatably mounted in the drive housing 10.
  • the axis of the shaft 16 and the reel spool 14 is designated B.
  • the winding spool 14 is non-rotatably but axially freely slidably mounted on the shaft 16.
  • the rotationally fixed coupling between the winding spool 14 and shaft 16 is characterized by a non-circular, e.g. square cross-sectional shape of the central portion of the shaft 16 realized.
  • a drive cap 20 is arranged rotatably about the longitudinal axis A.
  • the drive cap 20 has on its inside an integrally molded pinion gear 22 which engages in the pinion or spur gear 12, so that by a Rotation of the drive cap 20, a rotation of the shaft 16 and thus finally the winding coil 14 is effected.
  • the drive housing 10 is formed in two parts, wherein the interface or
  • Parting plane extends axially and through the guide channel 11.
  • the parting line is shown in Fig. 2 by the section line I-I.
  • the winding reel 14 has at its periphery a multi-turn winding groove 15.
  • a part of an elastic shock member in the form of a coil spring 18 is wound and secured with its wound end to the reel spool 14.
  • the free, unwound end of the coil spring 18 extends through a formed in the drive housing 10 guide channel 11, which opens axially from the drive housing 10.
  • the located outside of the drive housing 10 portion of the coil spring 18 is rectilinear and extends exactly coaxial with the drive housing 10.
  • a fitting piece 19 is attached.
  • the provided with the fitting piece 19 end of the coil spring 18 moves by the rotation of the drive cap 20 so linear coaxial with the drive housing 10.
  • the reel spool 14 moves on the shaft 16 so that it is not too undesirable Deadlocks of the coil spring 18 may come within the drive housing.
  • the coil spring 18 is tightly wound, wherein in the unwound state of the coil spring, the individual turns practically abut each other.
  • the coil spring in its longitudinal direction has a relatively large (compressive) rigidity, which makes it suitable for the impact displacement of a linearly driven object.
  • the inventive drive device is shown in use in a piston pump which forms a dispenser for a dispensed product. More specifically, the dispenser is part of a toothbrush with integrated paste dispenser.
  • the designated as a whole with 30, designed as a piston pump (toothpaste) dispenser comprises a cylindrical pump tube 32, in which a piston 34 is arranged coaxially displaceable. In the space 36 above the piston 34 is in practical use the contents, in this example toothpaste.
  • the tube 32 is provided with a nozzle 38.
  • the drive housing 10 of the drive device is inserted into the lower end of the tube 32.
  • the drive cap 20 is snapped with an annular bead 24 into an annular groove 33 of the tube 32 and thereby holds itself and the drive housing 10 firmly on or in the tube 32.
  • a toothbrush attachment 40 is screwed with a handle part 41 and a brush part 43 equipped with bristles 42.
  • the stem part 41 has a feed channel 44 which on the one hand communicates with the nozzle 38 in a communicating connection and on the other hand opens out in the region of the bristles 42.
  • the filling or refilling of the dispenser 30 takes place when the toothbrush attachment 40 has not yet been mounted or removed.
  • the helical spring 18 is wound almost completely onto the reel spool 14 so that its free end projects only slightly into the lower end of the tube 32.
  • toothpaste is filled through the nozzle 38 into the tube 32, whereby the piston 34 moves to its lower stop.
  • the toothbrush attachment 40 is (again) screwed onto the dispenser 30. Since the coil spring acting as a thrust member 18 is not connected to train with the piston 34, the piston can remain in its (upper) end position before filling. This in turn avoids the risk of air pockets during filling.
  • the coil spring 18 is unwound until the fitting 19 comes into abutment against the piston 34.
  • the piston 34 is provided with a form-fitting to the fitting piece 19 centering 35, which ensures that the coil spring 18 is held coaxially to the tube 32 and can not break out laterally.
  • the drive cap 20 By further rotation of the drive cap 20, the coil spring 18 is now further extended and the piston 34 thereby displaced.
  • toothpaste located above the piston 34 in the space 36 is in turn squeezed out through the nozzle 38 and conveyed via the feed channel 44 into the area of the bristles 42.
  • the drive device according to the invention is not only suitable for moving pistons in piston pumps serving as paste dispensers or other dispensers, but can in principle be used wherever a reaction is required. nismatisch short-stroke linear feed is required, which requires no excessive shear forces.
  • the inventive drive device can be structurally kept very small and is structurally less expensive and can be realized very cost, for example in plastic injection technology, so that it is ideally suited for use in mass-produced articles.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
  • Brushes (AREA)

Abstract

L'invention concerne un dispositif d'entraînement destiné au déplacement linéaire par poussée d'un objet à déplacer, ledit dispositif comprenant une bobine d'enroulement (14) montée rotative dans un boîtier d'entraînement (10) et pouvant être entraînée en rotation par un capuchon d'entraînement (20) rotatif par rapport au boîtier d'entraînement (10). Un ressort hélicoïdal (18) allongé fixé par une extrémité à la bobine d'enroulement (14) et pouvant être enroulé sur la bobine d'enroulement ou déroulé de celle-ci par rotation de la bobine d'enroulement, sert d'organe pousseur pour l'objet à déplacer. Dans le boîtier d'entraînement (10) est disposé un canal de guidage (11) à travers lequel le ressort hélicoïdal (18) s'étend et est guidé hors du boîtier d'entraînement (10). Le dispositif d'entraînement peut en principe être employé dans tous types d'applications nécessitant un déplacement d'avancement linéaire à relativement faible course et fonctionnant par poussée, n'exigeant pas de forces de poussée trop importantes. Le dispositif d'entraînement peut conserver une structure très petite et peu complexe et est donc parfaitement adapté à une utilisation dans des articles de masse.
PCT/CH2011/000001 2010-02-01 2011-01-03 Dispositif d'entraînement et pompe à piston dotée d'un dispositif d'entraînement Ceased WO2011091544A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH116/10 2010-02-01
CH1162010A CH702666B1 (de) 2010-02-01 2010-02-01 Antriebsvorrichtung und Kolbenpumpe mit Antriebsvorrichtung.

Publications (1)

Publication Number Publication Date
WO2011091544A1 true WO2011091544A1 (fr) 2011-08-04

Family

ID=42640760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2011/000001 Ceased WO2011091544A1 (fr) 2010-02-01 2011-01-03 Dispositif d'entraînement et pompe à piston dotée d'un dispositif d'entraînement

Country Status (2)

Country Link
CH (1) CH702666B1 (fr)
WO (1) WO2011091544A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2628546A (en) * 2023-03-27 2024-10-02 Medmix Switzerland Ag Dispensing device
WO2024199936A1 (fr) * 2023-03-27 2024-10-03 Medmix Switzerland Ag Dispositif de distribution

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024200367A1 (fr) * 2023-03-27 2024-10-03 Medmix Switzerland Ag Dispositif de distribution

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB874459A (en) * 1958-04-14 1961-08-10 Willy Zeller Device for applying pasty substances
US3231139A (en) * 1961-09-12 1966-01-25 Bouet Bernard Dispensing containers
GB2326086A (en) * 1997-06-12 1998-12-16 Eitan Rivlin Reservoir Toothbrush
WO1999011543A2 (fr) * 1997-09-03 1999-03-11 Michael Edward Brown Distributeur et ensemble d'evacuation d'une preparation fluide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB874459A (en) * 1958-04-14 1961-08-10 Willy Zeller Device for applying pasty substances
US3231139A (en) * 1961-09-12 1966-01-25 Bouet Bernard Dispensing containers
GB2326086A (en) * 1997-06-12 1998-12-16 Eitan Rivlin Reservoir Toothbrush
WO1999011543A2 (fr) * 1997-09-03 1999-03-11 Michael Edward Brown Distributeur et ensemble d'evacuation d'une preparation fluide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2628546A (en) * 2023-03-27 2024-10-02 Medmix Switzerland Ag Dispensing device
WO2024199936A1 (fr) * 2023-03-27 2024-10-03 Medmix Switzerland Ag Dispositif de distribution

Also Published As

Publication number Publication date
CH702666B1 (de) 2014-05-15
CH702666A1 (de) 2011-08-15

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