EP1151801A1 - Verriegelungssystem für Spenderpumpen - Google Patents
Verriegelungssystem für Spenderpumpen Download PDFInfo
- Publication number
- EP1151801A1 EP1151801A1 EP01201599A EP01201599A EP1151801A1 EP 1151801 A1 EP1151801 A1 EP 1151801A1 EP 01201599 A EP01201599 A EP 01201599A EP 01201599 A EP01201599 A EP 01201599A EP 1151801 A1 EP1151801 A1 EP 1151801A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plunger rod
- collar
- rib
- groove
- pump dispenser
- 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
Images
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
- B05B11/1042—Components or details
- B05B11/1059—Means for locking a pump or its actuation means in a fixed position
- B05B11/106—Means for locking a pump or its actuation means in a fixed position in a retracted position, e.g. in an end-of-dispensing-stroke position
Definitions
- the present invention relates to a locking system for a pump dispenser, comprising a collar and a plunger rod movably received therein.
- Pump dispensers are widely known in the art. Such devices are used, for example, for dispensing a predetermined amount of liquid soap, skin cream, or other liquid substances.
- the plunger rod By means of a spring, the plunger rod is held in a highest position in relation to the collar, and such as to allow the plunger rod to be moved downward against the spring action.
- a general disadvantage of such pump dispensers is that each time a dispenser head that is attached to the plunger rod is pressed, an amount of the liquid is dispensed. Whereas this is desirable when in use, it is generally not desirable during transport.
- a solution for this problem is placing an intermediate member between the dispenser head and the collar in order to make it impossible for the dispenser head to be moved downward and thus for any of the liquid to be dispensed.
- the pump dispensers according to the prior art therefore have the general disadvantage that due to a safeguard being provided, the dispenser takes up much space, or that various operations are necessary in order to put the dispenser into the locked condition.
- the object of the present invention is to provide an improved locking system for a pump dispenser.
- the plunger rod of the locking system for a pump dispenser is provided with at least one rib longitudinally extending over a distance from a first to a second end, and the collar is provided with at least one groove for guiding the rib therein, and for preventing a rotational movement of the plunger rod in relation to the collar, the first end of the rib, when having been brought into a down position, being removable from the groove in order to allow a rotational movement of the plunger rod in relation to the collar.
- the plunger rod becomes rotatable.
- the spring action subsequently causes the plunger rod to be pushed upward, until the first end of the rib abuts to the underside of the collar. This prevents the plunger rod from moving upward again, unless the rib is being guided into the groove through the collar.
- the collar In order to prevent the rib being guided into the groove due to rotation of the plunger rod, which might occur through a movement against the dispenser head, and then being pushed upward again by the spring action, it is preferred for the collar to be provided with at least one cavity, which is only accessible from below and which is moved axially in relation to the at least one groove. Rotating the plunger rod such that the rib is positioned underneath said cavity will cause the rib to be pushed by the spring action into the cavity with the result that a rotational movement is no longer possible. To remove the rib from this locked position, the plunger rod must first be pushed slightly downward and subsequently rotated until the rib can be guided into the groove.
- the wall part at both sides of the access at the bottom side of the groove, and optionally at both sides of the access at the underside of the cavity is rounded. This makes it easy for the rib to be guided into the groove or the cavity, respectively.
- the second end of the rib which is at a lower position on the plunger rod than the first end, to be positioned near the bottom end of the plunger rod, such that the same is in the groove when the plunger rod, due to the spring action, is in the highest position. Firstly, this prevents the plunger rod when it is being pushed downward from rotating in relation to the collar. Secondly, it will enable the plunger rod on the downward, to make its maximal stroke, while this would not be the case if in the rest position the second end were at a higher position than the collar and if with the downward movement of the plunger rod, said end were not guided into the groove. Thirdly, this always provides a good starting position when the plunger rod is pushed downward in order to subsequently allow the same to be locked.
- the second end of the rib may be positioned closer to the first end. In that case it is possible to, when in use, turn the dispenser knob to any desired position. The second end needs then to be positioned high enough to allow the plunger rod to be pushed down sufficiently to be able to dispense a required amount of liquid when the second end, instead of being guided in the groove touches the top side of the collar.
- FIG. 1 a portion of a pump dispenser is shown in which the dispenser head 1, the plunger rod 2, a collar 3, as well as a cylinder 4 and a spring 5 are clearly visible.
- the plunger rod 2 On the plunger rod 2, two longitudinal ribs 6 are provided at 180° in relation to each other. In the position represented, a widened portion attached to the bottom side of the plunger rod 2 abuts to the underside of the collar 3. The spring 5 ensures that there is a firm contact between said widened portion and the collar 3.
- FIG 2 a top view of the collar 3 is shown on the line of the arrows II-II of Figure 1.
- the collar 3, the plunger rod 2, and the two ribs 6 are clearly visible in this figure.
- the ribs 6 are guided through grooves 7 in the collar 3.
- the figures clearly show that during a downward movement and in rest, the ribs 6 make a rotational movement of the plunger rod in relation to the collar impossible.
- Figure 3 shows the pump dispenser according to Figure 1, with the plunger rod in the lowest position, and the top end of the rib 6 being lodged in a cavity 8 provided at the underside of the collar 3.
- the plunger rod 2 is rotated 90° in relation to the position as represented in Figure 1.
- the dispenser head 1 is shown from the rear, whereas the collar 3 is shown from the same side as in Figure 1.
- the cavity 8 is turned 90° in relation to the groove 7.
- This Figure 3 clearly shows that the portion at the underside of the collar and at both sides of the access of the cavity 8 is slightly rounded. This facilitates positioning the first end 11 of the rib 6 into the cavity 8.
- the provision of the cavity 8 ensures that it is not possible to simply rotate the dispenser head 1, which would cause the end 11 of the rib 6 to be guided into the groove 7, which would result in the aggregate being pushed upward again by the spring 5.
- Figure 4 shows a cross section on the line of the arrows IV-IV in Figure 3, clearly showing the grooves 7 and the cavities 8. It is also clearly visible that the ribs 6 are positioned in the cavities 8.
- Figure 5 shows a cross section on the line of the arrows V-V in Figure 1, and corresponds broadly speaking with the view represented in Figure 4, but the plunger rod 2 is rotated 90°. In this case the ribs 6 are received in the grooves 7 and the cavities 8 are vacant.
- Figure 6 shows a view on the line of the arrows VI-VI of Figure 3 in which the grooves 7 are vacant, and in which the ribs 6 (not shown) are located under the cover plate 3 of the collar.
- Figure 7 shows a cross section of the collar 3 on the line of the arrows VII-VII of Figure 2.
- the plunger rod 2 and the ribs 6 have been omitted.
- the cavity 8 is clearly visible in this figure, as well as the rounded rim portions 10 at the underside of the collar and at both sides thereof.
- Figure 8 shows a cross section on the line of the arrows VIII-VIII of Figure 6, with the groove 7 being clearly visible.
- the groove 7 is similarly provided with rounded, in fact tapering, wall portions at both sides of the access at the bottom of the groove 7. This facilitates a simple positioning of the first end 11 of the rib 6 from below.
- the ribs 6 may be embodied shorter than represented in the figures.
- a particular possibility is, for example, to position the second end 12 closer to the first end 11. In that situation, the plunger rod and the dispenser head 1 attached thereto are freely rotatable. If the second end 12 is positioned high enough, there is adequate room for the plunger rod 2 and the dispenser head 1 attached thereto to be pushed down a distance such as to pump up a desirable amount of liquid.
- the rib 6 is also possible to embody the rib 6 as an integral part of the plunger rod 2, for example, by making the plunger rod 2 oval, with the largest diameter at either side of the plunger rod 2 forming the two ribs 6.
- the plunger rod may be cylindrical.
- the collar 3 comprises an opening having a corresponding oval cross section, so that when the oval portion has been moved into the downward position, it is located under the collar, thereby allowing the same to be rotated.
- the first end 11 will abut to the bottom side of the collar 3.
Landscapes
- Closures For Containers (AREA)
- Reciprocating Pumps (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
- Nozzles (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1015098A NL1015098C2 (nl) | 2000-05-03 | 2000-05-03 | Vergrendelingssysteem voor een pompdispenser. |
NL1015098 | 2000-05-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1151801A1 true EP1151801A1 (de) | 2001-11-07 |
EP1151801B1 EP1151801B1 (de) | 2006-12-27 |
Family
ID=19771311
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01201599A Expired - Lifetime EP1151801B1 (de) | 2000-05-03 | 2001-05-03 | Verriegelungssystem für Spenderpumpen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1151801B1 (de) |
AT (1) | ATE349280T1 (de) |
DE (1) | DE60125454T2 (de) |
ES (1) | ES2279784T3 (de) |
NL (1) | NL1015098C2 (de) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2124711A (en) * | 1982-07-26 | 1984-02-22 | Aerosol Inventions Dev | Manually operated pump for small dispensers |
US5899363A (en) * | 1997-12-22 | 1999-05-04 | Owens-Illinois Closure Inc. | Pump dispenser having a locking system with detents |
US6006949A (en) * | 1998-01-12 | 1999-12-28 | Continental Sprayers International, Inc. | Manually operated reciprocating liquid pump with sealing vent opening |
-
2000
- 2000-05-03 NL NL1015098A patent/NL1015098C2/nl not_active IP Right Cessation
-
2001
- 2001-05-03 EP EP01201599A patent/EP1151801B1/de not_active Expired - Lifetime
- 2001-05-03 AT AT01201599T patent/ATE349280T1/de active
- 2001-05-03 DE DE60125454T patent/DE60125454T2/de not_active Expired - Lifetime
- 2001-05-03 ES ES01201599T patent/ES2279784T3/es not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2124711A (en) * | 1982-07-26 | 1984-02-22 | Aerosol Inventions Dev | Manually operated pump for small dispensers |
US5899363A (en) * | 1997-12-22 | 1999-05-04 | Owens-Illinois Closure Inc. | Pump dispenser having a locking system with detents |
US6006949A (en) * | 1998-01-12 | 1999-12-28 | Continental Sprayers International, Inc. | Manually operated reciprocating liquid pump with sealing vent opening |
Also Published As
Publication number | Publication date |
---|---|
DE60125454D1 (de) | 2007-02-08 |
ES2279784T3 (es) | 2007-09-01 |
EP1151801B1 (de) | 2006-12-27 |
ATE349280T1 (de) | 2007-01-15 |
NL1015098C2 (nl) | 2001-11-06 |
DE60125454T2 (de) | 2007-10-11 |
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