Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1028—Pumps having a pumping chamber with a deformable wall
  • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
  • B05B11/1042—Components or details
  • B05B11/1066—Pump inlet valves
  • B05B11/1067—Pump inlet valves actuated by pressure
  • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
  • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
  • B05B11/02—Membranes or pistons acting on the contents inside the container, e.g. follower pistons
  • B05B11/026—Membranes separating the content remaining in the container from the atmospheric air to compensate underpressure inside the container

Definitions

• Dispenser for dispensing liquid to pasty masses
• the invention relates to a dispenser for dispensing liquid to pasty masses with a pump head and formed therein, a pumping chamber having a pumping chamber having an inlet and an outlet valve, and a storage container, wherein in the storage container for emptying volume-reducing storage bag is included.
• dispensers have already become known in a variety of configurations. For example, reference should be made to FR 2647418 A1 or DE 3442092 A1.
• the invention is therefore based on the object of specifying a dispenser as initially assumed, which is advantageously designed with regard to the problem addressed.
• the pump chamber wall is flexible. Due to such a flexible pumping chamber wall, a pressure fluctuation, at least to a certain extent, can advantageously be absorbed by a dispenser of the type presupposed here.
• a load or preload of the exhaust valve can also be set in addition, in comparison to the elasticity of the pump chamber wall, that a pressure peak is cushioned almost completely or at least to a very considerable extent in the pumping chamber wall.
• This embodiment is particularly advantageous if, as is usually the case, the inlet and outlet valves do not close definitively in the resting state of the dispenser. For reasons of cohesion in the mass in the unactuated state, this may be provided.
• a check valve as it is generally used as an inlet valve in the pumping chamber, in particular in highly viscous media after use of the dispenser is not always closed.
• the suction phase follows, in which product is sucked from the storage container under the opening of the pumping chamber inlet valve into the pumping chamber. Accordingly, the valve is open.
• an elastically designed inlet valve is provided, in particular also an inlet valve, which in this case is only elastic, for example, is biased into its closed position.
• the pumping chamber can be formed by a pump bellows, as it is generally possible with regard to the pumping chamber walls, in DE 8702705 Ul or DE 86 29681 is described.
• the disclosure content of these publications is hereby incorporated in full in the disclosure of the present application, also for the purpose of incorporating features of the publications referred to in claims of the present application.
• the pumping chamber wall replaced due to its elastic restoring force an otherwise required return spring.
• the inlet valve which is preloaded into its closed position, preferably also altogether consists of an elastic plastic material. This is possible due to the special design of the inlet valve in the form of a double cup-shaped or an upwardly stepwise expanding, hollow inside part.
• the sealing takes place via an outer peripheral edge of the thus far circular cross-section part, at a step transition. From the lower, the pumping chamber facing bottom of the inlet valve can still emanate a Zentri mecanicsstiel.
• the bias of the inlet valve and / or the outlet valve in the closed position does not necessarily mean that they are biased against the closure wall. In particular, for the inlet valve, this may also mean that only an approximate, but possibly still a gap release closure is provided. This may even be advantageous in view of a continuous connection of the mass in the pumping chamber and storage container for longer periods of disuse.
• the preferably formed in the pump bellows integrated inlet valve has in detail Bridge part, which preferably consists of a soft plastic, as otherwise the pump bellows in total. From this bridge part in turn can run around a sealing lip, which cooperates with a mating sealing part on the telescope outer part.
• FIG. 1 shows a cross section through a dispenser, cut along the longitudinal axis a-a in Figure 2, in Fig. 3 ..;
• Figure 2 is a cross-section through the dispenser, taken along the transverse axis b-b in Figure 3;
• FIG. 3 shows a plan view of the dispenser according to FIG. 1 or FIG. 2;
• FIG. 4 shows a cross section through the pump head, cut along the longitudinal axis c-c in Fig. 6.
• Fig. 5 is a view according to FIG. 4, cut along the
• Fig. 6 is a plan view of the dispensing head according to FIG. 4 or FIG. 5, with removed overcap.
• a dispenser 1 consisting of a pump head 2 and a storage container.
• a largely loose inner bag 4 is arranged, in which the mass to be dispensed is contained.
• the inner bag 4 can be connected in places in the bottom area of the storage container 3 or along a line to the floor, so that the inner bag is prevented from invaginating.
• the inner bag 4 is further secured in the neck region 5 of the storage container 3 with this.
• the pump head 2 has a modular design and can be inserted from above into the storage container 3.
• the connection between the storage container 3 and the pump head 2 is achieved by means of an adapter part 6, which due to the round design of the pump head 2, in any case of the telescope outer part 15 and of the telescope inner part 10, in the cross sections according to FIG. 1 or FIG. 2 is different.
• the adapter part 6 forms a heel region 16, which in the transverse axis b-b, see. Fig. 2, only given as a single wall 17.
• the latching or clamping connection between the adapter part 6 and the storage container 3 is partially, in the region of the step surface 16, given by a separate locking wall 18, which cooperates with the associated, designed for latching neck region 5 of the storage container 3.
• this interaction takes over the wall 17, which in this area also has its own locking bead 19, cf. Fig. 2 and 5, forms.
• the pump head 2 is also covered by an overcap 7.
• the pump head 2 has a pumping chamber 8, which consists of a flexible pumping bellows 20.
• the pump bellows 20 have a zigzag shape in the vertical cross-section, whereas, as would be apparent from a horizontal cross-section, they are fundamentally circular in shape.
• This is also preferably a plastic injection molded part, made of a correspondingly flexible plastic. Is formed integrated in the pump bellows foot part 9 of an inlet valve, the opposite interaction part is integrated into the telescopic outer part 15 of the pump head 2.
• the pump head 2 has a telescope inner part 10, both telescoping outside the pumping chamber 8.
• the telescope outer part 15 forms in a further detail a circumferential support base 21, in which the foot region of the pump bellows 20 is seated on the underside. In cooperation with an inner surface of the support base 21. In this area, the pump cover 20 is no longer bellows-like, but with a solid wall, which has a reinforced triangular cross-section in the overlapping region of the support base 21.
• the pump bellows sits on the underside of the bottom 24 of the telescope outer part 15 - on the inside - on.
• the bottom 24 forms a central opening 25, fed as a feed channel to the inlet valve 26, opposite the bottom 24 to the interior of the pumping chamber 8 through.
• the channel extends into two concentric rings 27, 28, of which the outer surface of the ring 27 is designed to sealingly cooperate with a lip 29 of the bridge part 9 of the inlet valve 26.
• a soft elastic plastic formed outlet valve 11 At the top of the pump head 2 is also the part of a soft elastic plastic formed outlet valve 11. This sits in a seat part 12, which, cooperating with a counterpart part 13, by clamping, holds an upper collar 14 of the bellows or pumping chamber wall.
• the counterpart part 13 has a subsection 29 protruding into the fold region of the pumping chamber 8, which is basically formed like a cylinder and at its lower end also has a guide section 30 in the form of an inner double wall, over a partial region of the length of the section 29, in which the seat part 12 is guided.
• the seat part 12 closes on the underside approximately with the lower end of the guide member 30 from.

Landscapes

• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Reciprocating Pumps (AREA)

Priority Applications (5)

Applications Claiming Priority (4)

Publications (1)

Family

ID=36974016

Family Applications (1)

Country Status (8)

Cited By (2)

Families Citing this family (10)

Citations (10)

Family Cites Families (13)

• 2005
  • 2005-09-21 DE DE202005014895U patent/DE202005014895U1/de not_active Expired - Lifetime
• 2006
  • 2006-04-13 AT AT06743302T patent/ATE458553T1/de active
  • 2006-04-13 US US11/918,765 patent/US20090050651A1/en not_active Abandoned
  • 2006-04-13 EP EP06743302A patent/EP1871539B1/de not_active Not-in-force
  • 2006-04-13 DE DE502006006245T patent/DE502006006245D1/de active Active
  • 2006-04-13 WO PCT/EP2006/061592 patent/WO2006111506A1/de not_active Ceased
  • 2006-04-13 KR KR1020077026084A patent/KR20080009108A/ko not_active Ceased
  • 2006-04-13 JP JP2008505904A patent/JP2008537047A/ja active Pending
  • 2006-04-13 RU RU2007142390/11A patent/RU2007142390A/ru not_active Application Discontinuation

Patent Citations (10)

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