DE10007533A1 - Dispensing pump for dispensing a user selectable amount of fluid such as liquid soap, body lotion, etc. with a mechanism that allows a variable amount of liquid to be dispensed - Google Patents

Abstract

Device comprises a transport pump (11) with a shaft (2) having an external thread (3) and a knurled dosing nut (4) that tightens up against the under edge of the pump head (1). A locating groove (10) in the side of the shaft locates a tongue that is an integral part of the dosing nut. The tongue ensures that the nut is held securely in the dispensing position. If the nut (4) is against the container screw lock (5), the pump is locked and cannot dispense.

Description

The invention relates to a dispenser for the targeted dosing of flowable Substances.

With most of the previous systems available on the market, the user can construct only the specified amount of volume, e.g. B. in the form of liquid soaps or bodies Apply lotion by applying pressure to the pump head of a pump dispenser. That amount is often designed as a maximum quantity, which the user does not for a variety of reasons is always wanted.

Starting from this prior art, the invention is based on the object to propose a donor that enables almost an individual continuous volume application light, with the dosing element simultaneously in the upper or lower end stop as transport protection functions in that no substrate is applied when the feed pump head is actuated unintentionally.

This task is carried out by a dispenser according to the characteristic note paint the claim 1 solved in that a metering element in the form of a knurled nut on egg Nem thread of the tubular pump shaft with the feed pump head and the container screw cap turns as end stops or that a threaded sleeve on an integral expander with the external thread of the container screw cap rotates.

In the following the invention is based on a preferred embodiment in conjunction described with five drawings. It shows:

Fig. 1 is a simplified sectional drawing of the axially symmetrical feed pump ( 11 ) in Vorderan view. To actuate the pumping process, the feed pump head ( 1 ) is pressed down by the user, so that the feed pump tube shaft ( 2 ) is sunk into the actual pump system in the pump housing ( 7 ), the pump housing seat ring ( 6 ) being seated on the screw attachment piece of the container and by means of the Container screw cap ( 5 ) is fixed to it. If the knurled nut ( 4 ) is in contact with the container screw cap ( 5 ), it is not possible to remove the pumped substance. In this position there is a transport protection against undesired actuation of the feed pump head ( 1 ). If you now turn the knurled nut ( 4 ) over the feed pump tube shaft thread ( 3 ) in the direction of the bottom edge of the feed pump head ( 12 ), the integral, spring-loaded detent lug ( 23 ) snaps into the detent groove ( 10 ) after each revolution. In this way, an almost continuous delivery rate is guaranteed with a safe position fixation.

Fig. 2 shows the section A in a simplified form of a sectional drawing of the knurled nut ( 4 ). In order to achieve a resilient raster nose ( 23 ) with the required actuating force in one piece, the knurled nut ( 4 ) is provided with the folding symmetrical recesses ( 20 , 21 ), so that the integral spring-effective segment ( 22 ) is created.

Fig. 3 shows a further embodiment of Fig. 1, in which the dosing threaded sleeve cap ( 31 ) in the sleeve external thread ( 32 ) of the container screw cap ( 34 ) integral container screw cap ( 33 ) rotates, the container screw cap sleeve ( 33 ) the integral sleeve grid groove ( 35 ) has, into which the ratchet nose ( 51 ) engages.

Fig. 4, the dosing threaded sleeve cap ( 31 ) with the integral spring groove ( 50 ) and the locking lug ( 51 ). When the dosing thread sleeve cap ( 31 ) is turned up, the Ra sternase ( 51 ) snaps into the sleeve slot groove ( 35 ) after each revolution. In the upper end stop of the dosing threaded sleeve cap ( 31 ) there is a simultaneous transport protection against undesired actuation of the pump head ( 1 ).

Fig. 5 shows the section B in a simplified form of a sectional drawing.

Reference list

1

Feed pump head

2

Delivery pump tube shaft

3rd

Feed pump tube shaft thread

4

Knurled nut

5

Container screw cap

6

Pump housing seat ring

7

Pump housing

8th

Riser pipe approach

9

Spout

10th

Grid groove

11

Feed pump

12th

Feed pump head lower edge

20th

,

21

Recesses

22

spring segment

23

Grid nose

30th

Delivery pump tube shaft

31

Dosing thread sleeve cap

32

External sleeve thread

33

integral container screw cap

34

Container screw cap

35

Sleeve grid groove

36

Feed pump

50

integral tongue groove

51

Grid nose

52

Feed pump

Claims (4)

1. Dispenser for dispensing liquid, viscous or pasty substances in a metered manner by means of the feed pump ( 11 , 36 ), characterized in that an adjusting element in the form of the metering nut del nut ( 4 ) or the metering thread sleeve cap ( 31 ) continuously in the area between the bottom of the conveyor pump head ( 12 ) of the feed pump head ( 1 ) as the upper end stop and the upper edge of the container screw closure ( 5 ) or the container screw closure ( 34 ) as the lower end stop, the dosing knurled nut ( 4 ) on the right or left-handed feed pump tube shaft thread ( 3 ), which the Grid groove ( 10 ) rotates, while the dosing threaded sleeve cap ( 31 ) on the right or left-handed sleeve outer thread ( 32 ), which has the sleeve raster groove ( 35 ), the integral container screw closure sleeve ( 33 ) rotates. 2. Dispenser according to claim 1, characterized in that the dosing knurled nut ( 4 ) has the integral grid nose ( 23 ) which is suspended via the recesses ( 20 , 21 ) and the integral spring-active segment ( 22 ) in such a way that in each case after one Rotation of the dosing knurled nut ( 4 ) is a secure fixation of the locking lug ( 23 ) in the locking groove ( 10 ), the lower end stop of the dosing knurled nut ( 4 ) serving as transport protection. 3. Dispenser according to claim 1 and 2, characterized in that the Dosiergewindehülsenkap pe ( 31 ) has the integral spring groove ( 50 ) with the locking lug ( 51 ) which, after one rotation, securely engages in the sleeve locking groove ( 35 ), the The upper end stop of the dosing thread sleeve cap ( 31 ) serves as a transport lock. 4. Dispenser according to claim 1 and 3, characterized in that the container screw closure ( 34 ) integral container screw closure sleeve ( 33 ) has an internal thread, whereby the sleeve external thread ( 32 ) can be omitted without replacement or not or that the dosing threaded sleeve cap ( 31 ) the internal or external thread of an integral sleeve placed axially concentric to the feed pump head ( 1 ).