Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D83/00—Containers or packages with special means for dispensing contents
  • B65D83/0055—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents
  • B65D83/0072—Containers or packages provided with a flexible bag or a deformable membrane or diaphragm for expelling the contents the contents of a flexible bag being expelled by a piston or a movable bottom or partition provided in the container or the package

Definitions

• the present invention relates to a fluid dispenser comprising a reservoir of variable volume by displacement of a movable wall so as to reduce the volume of the reservoir and a dispensing orifice.
• the movable wall can be moved either by means of a deformation or by means of a sealed slide.
• it is the tank or at least part of the tank which undergoes a deformation, hence the use of a flexible deformable and / or elastic material
• the fluid product is thus never in contact with the air inside the tank, which improves the conservation of the product, in particular when it is sensitive to oxidation or deterioration in contact with air.
• a deformable reservoir one can for example cite those whose deformation of the reservoir is effected by manual crushing: this is then commonly referred to as a "squeezze bottle". It is directly the user's hand that serves as a means of crushing the tank.
• piston follower systems the piston follower rises in the container either automatically under the effect of the vacuum created in the container after each actuation of the distributor, or using a spring which biases the piston in the direction of reducing the internal volume of the container.
• the present invention aims to remedy the aforementioned drawbacks of the prior art by proposing a dispenser provided with actuating means which act on the movable wall of the dispenser.
• the document EP-0 869 080 describes a dispenser comprising a flexible bag produced in the form of a helical bellows.
• the turns formed by the external wall of the bellows are in threaded engagement in a rotary skirt forming a single annular thread.
• the hehcoid turns of the bellows are gradually accumulated in the manner of an accordion.
• the single annular thread of the skirt is located in the upper part of the pocket, so that the annular thread is initially engaged with the uppermost turn of the bellows and then gradually engages with the lower turns as we rotate the skirt freely on itself.
• the actuating means are rotary and include a thread engaged with the reservoir.
• the thread may include several separate threads.
• the reservoir comprises one or more displacement flanges secured to the movable wall and engaged in the thread.
• the dispenser comprises a body, the rotary actuating means being rotatably mounted in said body without effecting translational movement relative to said body.
• the actuating means thus rotate freely in the body by raising the movable wall to reduce the volume of the reservoir.
• the body forms part of the reservoir.
• the reservoir comprises a bellows in tight engagement with the body, said bellows forming the movable wall.
• the bellows comprises a tight fixing collar engaged with a connection sleeve formed by the body.
• the bellows is on the one hand fixedly connected to the body and on the other hand is in threaded engagement with the actuating means.
• the movable wall is connected to the fixing collar by a deformable wall.
• the dispensing orifice can be formed in the body.
• the actuation means form a bottom for the dispenser.
• the actuation means comprise a peripheral gripping member capable of driving the actuation means in free rotation in the body. We can thus hold the body with one hand and rotate the actuating means with the other hand.
• FIG. 1 is a schematic perspective view of a dispenser according to the invention
• FIG. 2 is an exploded perspective view of the dispenser of FIG. 1, and
• FIG. 3 is a cross-sectional view through the dispenser of Figures 1 and 2.
• the fluid dispenser of the invention essentially comprises three constituent elements, namely a bellows 1, actuating means 2 and a body or shell 3.
• the bellows 1 is a single piece, for example made of a flexible deformable material such as an elastomer or an elastomeric thermoplastic. It has good deformability properties in very specific areas.
• the bellows 1 comprises a substantially rigid bottom wall 11. This bottom wall 11 can be perfectly flat, but it can also be convex as shown in FIG. 3.
• the bottom wall 11 forms a kind of dome or overturned bucket which projects upwards.
• the bottom wall 11 defines at least one substantially rigid displacement flange 13. In the figures, there are three flanges 13.
• the bellows 1 also forms a fixing collar 15 which is also substantially rigid.
• This fixing collar 15 can for example define a tight snap-in housing 16 intended to cooperate with a complementary member as will be seen below.
• the bellows 1 also comprises a deformable wall 14 which connects the fixing collar 15 to the bottom wall 11.
• the deformability of the wall 14 can for example be obtained by a thickness of the wall that is less than that of the bottom wall 11 or of the fixing collar 15.
• the deformable wall 14 which gives the name to the part since it gives it a bellows function.
• the bellows 1 can for example be replaced by a flexible pocket fixed on a pocket support fulfilling the function of the fixing collar 15.
• the bottom wall 11 can be replaced by a plate on which the flexible pocket rests.
• the displacement flanges 13 can be formed by the periphery of the plate supporting the flexible bag.
• other embodiments such as for example with a follower piston displaceable in a sliding cylinder.
• the actuating means 2 comprise an internally threaded bush 20 so as to form one or more internal threads or threads 21. As can be seen in FIG. 3, the displacement flanges 13 of the bellows are in threaded engagement with these threads internal 21. Below the threaded sleeve 20, the actuating means define an actuating and gripping element 23 that the user can grasp to drive the actuating means in rotation. Optionally, the actuation means 2 form a bottom 22 which advantageously serves as the bottom for the dispenser. On the external wall of the threaded bush 20, a continuous bead or several protruding bead segments 24 are formed which extend over part or all of the periphery of the bush 20. It is easily understood that a rotation of the means actuation 2, while the bellows 1 is fixedly fixed, causes the flanges 13 to move inside the threaded bush 20.
• the body 3 of the dispenser forms a sort of outer shell which largely imparts the aesthetic appearance to the dispenser.
• the body 3 comprises a peripheral skirt 33 inside which is the sleeve 20 of the actuating means 2.
• the skirt 33 is formed internally with an annular housing 34 in which are received the protruding cord segments 24 formed outside of the threaded sleeve 20.
• the engagement of the cord segments 24 in the housing 34 ensures the rotatable holding of the sleeve 20 in the skirt 33.
• the actuation means 2 can rotate freely in the skirt 33 but cannot disengage from it. The rotation is free, since the cord segments 24 and the housing 34 are perfectly circular and not spiral.
• the body 3 forms a plate 31 in which a hole is formed which serves as a dispensing orifice 32 for the dispenser.
• a connection sleeve 35 extends under the plate 31 around the dispensing orifice 32.
• This connection sleeve has a fixing profile engaged with the waterproof fixing collar 15 of the bellows 1.
• User can for example grasping the body 3 using the left hand and rotating the actuating means 2 with the right hand by grasping them at the level of its actuating and gripping element 23. This has the effect of making reassemble the displacement flanges 13 in the internal threads of the bushing 20.
• the movable wall 11 then rises towards the plate 31 by reducing the useful volume of the reservoir 12.
• the fluid stored inside the reservoir 12 is then forced back through the dispensing orifice 32 so that it can be collected by the user on the tray 31.
• the reservoir 12 is here formed by the assembly of the bellows 1 and the body 3.
• the reservoir 12 is formed by a single piece, for example a flexible pocket whose opening defines the dispensing orifice 32.
• the plate 31 would only serve as a bearing surface and a receiving surface for recovering the fluid product.
• the body 3 can be formed with a cover 36 which is connected in one piece by a material bridge 37 to the rest of the body 3. This material bridge 37 thus produces a pivoting articulation making it possible to pivot the cover 36 relative to the skirt 33 and the plate 31.
• the cover 36 defines on its underside a shutter needle 38 adapted to be housed in a sealed manner in the dispensing orifice 32 to seal it hermetically. This is the case when the cover 36 is folded down on the plate 31.
• the dispenser of the invention it is possible to obtain a dose of fluid product whose volume is directly proportional to the amount of rotation of the actuating means.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
• Devices For Dispensing Beverages (AREA)
• Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
• Reciprocating Pumps (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=8865708

Family Applications (1)

Country Status (8)

Families Citing this family (2)

Family Cites Families (2)

• 2001
  • 2001-07-19 FR FR0109666A patent/FR2827576B1/fr not_active Expired - Fee Related
• 2002
  • 2002-07-15 WO PCT/FR2002/002515 patent/WO2003008298A1/fr active IP Right Grant
  • 2002-07-15 JP JP2003513869A patent/JP2004534703A/ja active Pending
  • 2002-07-15 ES ES02770028T patent/ES2236581T3/es not_active Expired - Lifetime
  • 2002-07-15 CN CN 02814284 patent/CN1241800C/zh not_active Expired - Fee Related
  • 2002-07-15 EP EP02770028A patent/EP1414714B1/de not_active Expired - Lifetime
  • 2002-07-15 DE DE60202775T patent/DE60202775T2/de not_active Expired - Fee Related
  • 2002-07-15 BR BR0210693-0A patent/BR0210693A/pt not_active IP Right Cessation

Non-Patent Citations (1)

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