CN1784156A

CN1784156A - Piston-stopper dispenser

Info

Publication number: CN1784156A
Application number: CN200480012197.5A
Authority: CN
Inventors: J-L·布加蒙
Original assignee: Rexam Dispensing Systems SAS
Current assignee: Silgan Dispensing Systems Le Treport SAS
Priority date: 2003-05-07
Filing date: 2004-05-06
Publication date: 2006-06-07
Also published as: BRPI0410687A; CA2524275A1; JP2006525051A; EP1619978A1; FR2854554B1; WO2004098346A1; FR2854554A1; US20060124670A1; MXPA05011914A

Abstract

The invention relates to a dispenser for a liquid cosmetic product, especially comprising a reservoir (10), an internal piston (3), and an applicator end piece (1) provided with an end valve (2). Said dispenser is characterised in that the reservoir (10) is defined inside the end piece, at a first end, by the valve (2), and, at the other end, by the piston (3), said piston forming a stopper screwed onto a threaded axial rod (41) fixed to a base (4) which is rotatably connected to the end piece (1).

Description

Piston-stopper dispenser

The present invention relates to a kind of distributor and a kind of method of packing these cosmetic products of liquid make-up product.

More specifically, the present invention for example can be applicable to, especially, emulsifiable paste, gel and these products of semiliquid viscous product, it substitutes the traditional product of solid stick or paste just gradually.

Known this class distributor, applicator (applicator) nozzle that it specifically comprises reservoir (reservoir), inner carrier and provides end valve (end valve).

More specifically, for the semiliquid product, its density and high viscosity make these distributors not use, and necessary their structure of change is to satisfy the stricter condition to dosing, watertightness and product protection.

Because market it is also important that the overall appearance that keeps Traditional Packing at least in part is to avoid user's cosmetic custom flip-flop.

Particularly, as if must use to rotatablely move always and provide and quantitative product.

Yet because the flowability of some product, a kind of like this motion mode of sampling can cause the problem of watertightness and dosing.

Need especially to guarantee to use the sealing of the distributor of end valve to block, in end valve without any retention areas, in order to avoid cause residual product to leave over and dry up and the danger of blocking end valve.

In addition, the packing of liquid make-up can cause the particular problem that contains air in the reservoir particularly, and these air that are included in the reservoir must be drawn out of in the filling stage of distributor.

This hydraulic limitations means usually in goods producer's factory will equip complex appts, and this will cause extra technological difficulties and insignificant fringe cost.

The objective of the invention is to address these problems in a satisfactory manner, promptly on the distributor of prototype structure, use the piston-stopper notion.

According to the present invention, this purpose can rely on this distributor to realize, it is characterized in that described reservoir is in nozzle, the one end is defined by described valve, and the other end is by the described pistons delimit that forms stopper, wherein stopper is twisted to be fixed in base portion and is formed on the threaded shaft of one, and this base portion is connected in described nozzle with being rotated.

According to favourable feature, described piston comprises: be the columniform compressing member that covers described threaded rod and have periphery (peripheral lip) on the one hand, wherein periphery contacts with the inwall watertight of reservoir, and on the other hand, in the outside of described reservoir, be connected and be fixed on rotatably the connection axle collar of described base portion with described bar.

According to an alternative embodiment of the invention, described reservoir provides the sheath that is fixed in the nozzle (jacket), and wherein if desired, this nozzle is extended by the sleeve pipe (sleeve) that covers in the base portion.

Preferably, described sleeve pipe provides device and the device of locking in base portion that blocks described piston rotation.

Another object of the present invention provided a kind of in this type of distributor the method for packages for liquid cosmetic product, this method comprises: particularly, obliterator nozzle surrounds inner carrier and is blocked in the reservoir of an end by valve, it is characterized in that described reservoir is in the other end filling of its inverted position by valve, this piston inserts with the form of stopper then, extract the air of packing in the reservoir out and seal the other end, and described piston is locked in the closed position with watertight means.

According to the favorable characteristics of this method, the threaded shaft that forms one with base portion is provided, before closing reservoir, it is inserted into and is fixed in the described piston.

In addition, the transmission fixing and motion of the bar in the piston is provided by the elastic deformation material, and wherein said piston is also made by this elastic deformation material.

In addition, this piston in the closed position of reservoir by base portion axially and rotatably is connected to nozzle and locking.

Similarly, the rotation of described piston is by blocking with cooperating of restriction plug, and wherein restriction plug and nozzle form one.

Preferably, the watertightness of reservoir only at locking just guaranteed during described piston.

At last, reservoir is filled and reserves the little air that forms buffer, to avoid product leakage by valve when inserting piston.

Therefore, rotatablely moving of base portion changed into the axial translation of piston in the reservoir, and this reservoir places product under the pressure and it can be sent.

Distributor of the present invention has general appearance and ergonomics, itself and traditional bar-shaped very similar, but have the difference in functionality element, these elements are suitable for characteristic, the physical attribute of new semiliquid product and the little metering that need be assigned with.

Therefore this distributor can be applied to the liquid make-up field, is used for selling or packing as sample.

In addition, the restriction that the mode that is assigned with of the watertightness of this distributor and product is all preferably relevant with the liquid make-up product is consistent.

Distributor of the present invention also has very simple structure, and therefore has cheap especially cost price.

In addition, packing method of the present invention realizes especially easily, and the piston-stopper principle of this method provides the watertight and the positiver sealing of distributor, and it has overcome problems such as containing air.

In fact, when piston enters reservoir, in the obstruction stage, air is discharged gradually.

In addition, possess under the situation of watertightness, need not provide the watertightness device in the bottom of distributor at the top at piston-stopper.

With reference to accompanying drawing,, will understand the present invention better by reading following description.Wherein:

Fig. 1 shows the axial section of the embodiment of distributor of the present invention.

Fig. 2 A to Fig. 2 C shows the schematic diagram of different step in the packing method of the present invention.

Distributor shown in Figure 1 is designed to send and smears the liquid cosmetic product.

For this purpose, this distributor comprises obliterator nozzle 1, product reservoir 10 and the inner carrier 3 that provides end valve 2.

Valve 2 by, for example extract hole 20 out and constitute, this hole places on the elastic deformation piston of wall of nozzle 1, its limit is abutting against pin or needle-valve 50, this valve 50 is supported by packing ring 55 by the sheath 5 that is fixed in the described nozzle.

According to optional embodiment not shown in figures, can increase lid and come covering nozzles 1, if desired, it can support this pin rather than sheath.

Reservoir 10 is limited in the inside of nozzle 1, one end (top in this case) is defined by valve 2, and the other end (bottom in this case) is defined by the piston 3 that has formed stopper, and this piston 3 is twisted admittedly and formed one with base portion 4 and be connected to rotatably on the threaded shaft 41 of nozzle 1.

Piston 3 comprises cylindrical compression element 31 and the periphery 35 that covers threaded rod 41, and periphery 35 can slide contiguously with the inwall watertight of reservoir 10, and this reservoir is covered by sheath 5 in this case.

Compressing member 31 in the reservoir outside passes through jack 33 and is connected the axle collar 32 connections, and this axle collar 32 is connected with bar 41 and the restriction plug (for example, a series of axial rib 42) of dependence and nozzle 1 formation one is blocked in the base portion 4 rotatably.

Preferably, as shown in the drawing, sheath 5 is extended by sleeve pipe 54, and this sleeve pipe 54 is capped and axially is locked in the base portion 4, for example uses the counterrotating locking device 44 that allows subsequently.

Sheath 5 is complementary with the inboard profile of nozzle 1, and has the parts 53 widened to be connected with sleeve pipe 54.

By motion transmission, make piston 3 upwards axial translation and compressed products in reservoir 10 with respect to nozzle 1 rotation base portion 4, thereby force valve 2 to open and send product via screw thread and restriction plug 42.

The assembling of the different piece of this distributor and packing of this product will describe in following content, reverse to the position with nozzle shown in the 2C as Fig. 2 A.

At first, reservoir 10 is filled by the openend of sleeve pipe 54, and valve 2 keeps cutting out, and provides watertightness in the bottom shown in Fig. 2 A.

When the horizontal plane of product P farthest reach sleeve pipe 5 widen parts 53 time, the filling process of reservoir stops.

Yet, in order to compensate the possible breakdown in the location of filling process and/or piston 3, and avoid when inserting piston, making danger outside the product spill valve 2, can preferably above the product horizontal plane, leave little air.This design can produce compressible region to form buffer, and this buffer can absorb the propelling merit of piston and impel the merit minimum that acts on non-compressed liquid product.

Before or at the packing place, base portion 4 is assembled on the piston 3 by forcing insertion rod 41 in the axle collar shown in Fig. 2 B 32.

If the axle collar does not provide screw thread, it must be made by flexible, flexible material, and this material allows axle collar distortion with fixing and be anchored on the screw thread of bar 41, and this bar 41 is made by the rigid plastic material successively.

Then, piston 3 just looks like that a stopper equally inserts in the sheath 5, and it is promoted by base portion 4, and by edge 35 and around jack 33 air in the reservoir is discharged.

Final stage at assembly manipulation, the fraction air of staying in the reservoir is discharged to the outside, under the pressure that increases gradually that produces by piston, pass the groove (gorge) 34 in the wall of the axle collar 32, limit around sleeve pipe 54, pass the drain tank 40 in the wall of base portion 4 then, perhaps according to an alternative embodiment of the invention, pass in sleeve pipe 54 outer walls or the groove (not shown) in the base portion inwall.

Therefore, only having chance with 35 arrives ends, at the wall of the eminence watertight contact sleeve pipe 5 of parts 53.

Like this, 10 of reservoirs are in the end sealed with watertight means in the step, when piston-stopper 3 by the jack 54 that base portion 4 axially is connected to nozzle in the closed position by locking.

The rotation of piston 3 also is blocked in this point by the axle collar 32 with cooperating of restriction plug 42, and restriction plug 42 forms one with jack 54, thereby forms one with nozzle 1.

In a single day in this position, compressing member 31 almost contacts with the scope of freedom of fluid product P, and turns back to position shown in Figure 1, distributor is about to be used.

The axially-movable of piston 3 in the reservoir in the direction of valve, causes the compression in the reservoir 10, and is limited in the pressure drop in the compartment of 32 of base portion 4, sleeve pipe 54, jack 33 and the axle collars.This pressure drop is by being compensated by groove 40 and groove 34 inhaled airs.

Therefore, the watertightness of distributor is necessary in the level of piston-stopper just, thereby forms the bottom of reservoir 10 in operating process.

Place anti-change (tamper-proof) bar between nozzle and the base portion can advantageously finish assembling, and the lid (not shown) can, if desired, finish the packing of whole distributor and the outward appearance of aesthetic feeling.

Claims

1. distributor that the liquid make-up product is used, the obliterator nozzle (1) that it specifically comprises reservoir (10), inner carrier (3) and provides end valve (2), it is characterized in that: described reservoir (10) is in nozzle interior, the one end is defined by described valve (2), its other end is defined by the described piston (3) that forms stopper, this stopper is twisted to be fixed in base portion (4) and is formed on the threaded shaft of one the rotatable described nozzle (1) that is connected in of base portion wherein.

2. distributor according to claim 1, it is characterized in that: described piston (3) comprising: on the one hand, columniform compressing member (31), it covers described threaded rod (41) and has the periphery (35) that contacts with the inwall watertightness of reservoir, on the other hand, in the outside of described reservoir, be connected and be fixed on rotatably the connection axle collar (32) of described base portion (4) with described bar (41).

3. distributor according to claim 1 and 2 is characterized in that: described reservoir (10) provides the sheath that is fixed in the nozzle (1) (5), and wherein said sheath (5) is extended by the sleeve pipe (54) that covers in the base portion as required.

4. distributor according to claim 3 is characterized in that: described sleeve pipe (54) provides the device (42) of the rotation that is used for blocking described piston (3) and is used for the device (44) of shaft lock in base portion (4).

5. the method for a packages for liquid cosmetic product in this type of distributor comprises: particularly, obliterator nozzle (1) surrounds inner carrier (3) and reservoir (10), and reservoir (10) is blocked in an end by valve (2), it is characterized in that: described reservoir (10) is filled by the other end of valve (2), distributor is in its inverted position like this, this piston inserts with the form of stopper then, discharge the air of packing in the reservoir and block the other end, and described piston is locked in the closed position with watertight means.

6. method according to claim 5 is characterized in that: closing reservoir (10) before, the axostylus axostyle (41) that forms one with base portion (4) is inserted and secured in the described piston (3).

7. method according to claim 6 is characterized in that: the transmission of the fixing and motion of the bar (41) in the piston (3) is provided by the elastic torsion of material, and wherein this piston is made by this material.

8. according to any one described method in the claim 5 to 7, it is characterized in that: described piston (3) is by axially and rotatably being connected to the closed position that nozzle (1) is locked in reservoir (10) with base portion (4).

9. according to any one described method in the claim 5 to 8, it is characterized in that: described piston (3) is blocked rotationally with cooperating of (42) of restriction plug, and restriction plug (42) wherein forms one with nozzle (4).

10. according to any one described method in the claim 5 to 9, it is characterized in that: the watertightness of reservoir only is guaranteed in by the step of locking at described piston.

11. according to any one described method in the claim 5 to 10, it is characterized in that: reservoir (10) is filled and reserves therein a spot of air forming buffer, thereby avoids when inserting piston (3) any leakage from valve (2).