EP2752250B1 - Collapsible tube with dispenser pump and method for manufacturing the same - Google Patents

Collapsible tube with dispenser pump and method for manufacturing the same Download PDF

Info

Publication number
EP2752250B1
EP2752250B1 EP13250003.4A EP13250003A EP2752250B1 EP 2752250 B1 EP2752250 B1 EP 2752250B1 EP 13250003 A EP13250003 A EP 13250003A EP 2752250 B1 EP2752250 B1 EP 2752250B1
Authority
EP
European Patent Office
Prior art keywords
tube
engagement portion
connecting end
pump
collapsible tube
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.)
Not-in-force
Application number
EP13250003.4A
Other languages
German (de)
French (fr)
Other versions
EP2752250A1 (en
Inventor
Ya-Tsan Wang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Derjin (Hong Kong) Holding Co Ltd
Original Assignee
Derjin (Hong Kong) Holding Co Ltd
DERJIN HONG KONG HOLDING Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Derjin (Hong Kong) Holding Co Ltd, DERJIN HONG KONG HOLDING Co Ltd filed Critical Derjin (Hong Kong) Holding Co Ltd
Priority to EP13250003.4A priority Critical patent/EP2752250B1/en
Publication of EP2752250A1 publication Critical patent/EP2752250A1/en
Application granted granted Critical
Publication of EP2752250B1 publication Critical patent/EP2752250B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/60—Contents and propellant separated
    • B65D83/62—Contents and propellant separated by membrane, bag, or the like
    • 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
    • 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
    • B05B11/1043—Sealing or attachment arrangements between pump and container
    • B05B11/1046—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container
    • B05B11/1047—Sealing or attachment arrangements between pump and container the pump chamber being arranged substantially coaxially to the neck of the container the pump being preassembled as an independent unit before being mounted on the container

Definitions

  • the invention relates to dispensers for gel or viscous liquid, particularly to collapsible tubes with pump caps.
  • Collapsible tubes are extensively applied to serve as packaging containers for cleansing cream, toothpaste and cosmetics. Because these products are of single-use daily necessities, such collapsible tubes are in great demand.
  • Collapsible tubes can be simply pressed with a hand, but they are not very suitable for high-priced skincare products because a given quantity is hard to be obtained by a hand-press operation to a collapsible tube. It will cause waste when pressing too much. Besides, a liquid product held in a collapsible tube tends to rot because a frequently opened cap of collapsible tube is easy to cause microorganism breeding.
  • An object of the invention is to provide an improved collapsible tube with a dispenser pump, which allows a user to access the liquid content by a simple pressing operation. Not only can a given quantity be obtained, but the pump assembly provides an enhanced sealing effect to prevent the liquid content from polluting.
  • FIG. 1 shows a collapsible tube 100 with a dispenser pump of the invention.
  • the collapsible tube 100 includes a soft tube 10 and a pump assembly 20.
  • the soft tube 10 includes a tube body 11 and a connecting end 12.
  • a storing room 111 is formed in the tube body 11 for storing a liquid material such as cream or gel.
  • the tube body 11 and the connecting end 12 is integrally formed into a single piece, for example, injection molding.
  • the tube body 11 and the connecting end 12 can be made of any suitable material, and polyethylene (PE) is preferable.
  • the connecting end includes a first engagement portion 122 for engaging with the pump assembly 20.
  • FIG. 1A shows the soft tube 10.
  • the soft tube 10 may be formed by one or more layers depending upon actual requirements. Different layers may be identical or different in material.
  • FIG. 1A depicts the soft tube 10 composed of two layers, namely, a first layer 11 a and a second layer 11 b.
  • the pump assembly 20 includes a pressing head 21 and a pump body 22.
  • the pressing head 21 is provided with a nozzle 211. When the pressing head 21 is depressed, the pump assembly 20 will draw the liquid content in the storing room 111 to drain away for being used.
  • a conventional collapsible tube is only provided with a single opening and a user must press the tube to drain the liquid content away through the opening. Once a user exerts a force unduly, the liquid content will be drained away overmuch. Furthermore, a plastic collapsible tube has elasticity, it will rebound after it has been pressed. The tube will suck the liquid content which has been drained away at the opening back into the tube while the tube is rebounding. Thus, the liquid content may rot due to microorganism breeding. Therefore, the invention provides a collapsible tube 100 with a dispenser pump, so that a user can access the liquid content by a pressing operation. Not only can a given quantity be obtained, the valve 23 of the pump assembly 20 can also enhance a sealing effect to prevent the liquid content from polluting.
  • the soft tube 10 and the connecting end 12 are integrally formed into a single piece.
  • the connecting end 12 includes a first engagement portion 122 and the pump body 22 has a second engagement portion 221.
  • the pump body 22 is disposed in the storing room 111 by the engagement of the first engagement portion 122 and the second engagement portion 221.
  • an additional element or process is not necessary to secure the pump assembly 20. This can simplify the manufacturing process and reduce the manufacturing costs.
  • the connecting end 12 further includes a blocking portion 123.
  • the pump body 22 is formed with a flange portion 222.
  • the flange portion 222 can abut against the blocking portion 123 to firmly secure the pump assembly 20 and the soft tube 10.
  • the connecting end 12 further includes a receiving space 121 for receiving the pressing head 21 and providing a reciprocating action compartment.
  • FIG. 2 shows the collapsible tube 100.
  • the invention may further include a cap 30.
  • the connecting end 12 is formed with a third engagement portion 124 for engaging with a fourth engagement portion 31 of the cap 30.
  • the nozzle 211 can keep moist and prevent pollution of dust.
  • the liquid content can be filled into the soft tube 10 through a filling aperture 112.
  • the filling aperture 112 will be sealed up after the liquid content has fully filled.
  • the first engagement portion 122 is further formed with a guiding slant 1221 and a hook portion 1222.
  • the guiding slant 1221 can guide the second engagement portion 221 of the bump assembly 20 to slide into the connecting end 12 and the hook portion 1222 can withhold the second engagement portion 221, so that the pump assembly 20 can be firmly installed in the soft tube 10.
  • FIG. 4 shows the flowchart of the manufacturing method of the invention.
  • the method includes the steps of:
  • the soft tube 10 and the connecting end 12 are integrally formed into a single piece.
  • the connecting end 12 further includes a blocking portion 123.
  • the pump body 22 is formed with a flange portion 222. The flange portion 222 can abut against the blocking portion 123 to firmly secure the pump assembly 20 and the soft tube 10.
  • the connecting end 12 further includes a receiving space 121 for receiving the pressing head 21 and providing a reciprocating action compartment.
  • the invention may further include a cap 30.
  • the connecting end 12 is formed with a third engagement portion 124 for engaging with a fourth engagement portion 31 of the cap 30.
  • the nozzle 211 can keep moist and prevent pollution of dust.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Description

    BACKGROUND OF THE INVENTION (1) FIELD OF THE INVENTION
  • The invention relates to dispensers for gel or viscous liquid, particularly to collapsible tubes with pump caps.
    • (2) DESCRIPTION OF THE PRIOR ART
  • With progress of technologies, people always expect higher life quality. Also, use efficiency of daily necessities of life is required by moderns.
  • Collapsible tubes are extensively applied to serve as packaging containers for cleansing cream, toothpaste and cosmetics. Because these products are of single-use daily necessities, such collapsible tubes are in great demand.
  • Collapsible tubes can be simply pressed with a hand, but they are not very suitable for high-priced skincare products because a given quantity is hard to be obtained by a hand-press operation to a collapsible tube. It will cause waste when pressing too much. Besides, a liquid product held in a collapsible tube tends to rot because a frequently opened cap of collapsible tube is easy to cause microorganism breeding.
  • In French Patent Specification No. 2 710 036 there is described a collapsible tube with a dispenser pump comprising:-
    • a soft tube comprising a tube body with a storing room and a connecting end with a first engagement portion; and
    • a pump assembly comprising a pressing head with a nozzle and a pump body with a second engagement portion;
    • and in which the pump body is disposed in the storing room and the first engagement portion engages firmly with the second engagement portion.
  • Other collapsible tube arrangements are disclosed in European Patent Specifications Nos. 0 622 311 and 2 243 557 , in German Patent Specification No. 93 21 517 , and in Specifications Nos. WO 2005/016551 and WO 2011/013876 .
    • SUMMARY OF THE INVENTION
  • An object of the invention is to provide an improved collapsible tube with a dispenser pump, which allows a user to access the liquid content by a simple pressing operation. Not only can a given quantity be obtained, but the pump assembly provides an enhanced sealing effect to prevent the liquid content from polluting.
  • To accomplish the above objects, there is provided a collapsible tube as claimed in Claim 1.
    • BRIEF DESCRIPTION OF THE INVENTION
    • FIG. 1 is an exploded cross-sectional view of the collapsible tube of the invention;
    • FIG. 1A is a partially enlarged view of the soft tube of the invention;
    • FIG. 2 is a schematic view of the dispenser pump of the invention;
    • FIG. 3 is a partially enlarged view of the connecting end of the invention; and
    • FIG. 4 is a flowchart of the manufacturing method of the collapsible tube of the invention.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Please refer to FIG. 1, which shows a collapsible tube 100 with a dispenser pump of the invention. The collapsible tube 100 includes a soft tube 10 and a pump assembly 20. The soft tube 10 includes a tube body 11 and a connecting end 12. A storing room 111 is formed in the tube body 11 for storing a liquid material such as cream or gel. In this embodiment, the tube body 11 and the connecting end 12 is integrally formed into a single piece, for example, injection molding. The tube body 11 and the connecting end 12 can be made of any suitable material, and polyethylene (PE) is preferable. The connecting end includes a first engagement portion 122 for engaging with the pump assembly 20.
  • Please refer to FIG. 1A, which shows the soft tube 10. The soft tube 10 may be formed by one or more layers depending upon actual requirements. Different layers may be identical or different in material. FIG. 1A depicts the soft tube 10 composed of two layers, namely, a first layer 11 a and a second layer 11 b.
  • The pump assembly 20 includes a pressing head 21 and a pump body 22. The pressing head 21 is provided with a nozzle 211. When the pressing head 21 is depressed, the pump assembly 20 will draw the liquid content in the storing room 111 to drain away for being used.
  • It should be noted that a conventional collapsible tube is only provided with a single opening and a user must press the tube to drain the liquid content away through the opening. Once a user exerts a force unduly, the liquid content will be drained away overmuch. Furthermore, a plastic collapsible tube has elasticity, it will rebound after it has been pressed. The tube will suck the liquid content which has been drained away at the opening back into the tube while the tube is rebounding. Thus, the liquid content may rot due to microorganism breeding. Therefore, the invention provides a collapsible tube 100 with a dispenser pump, so that a user can access the liquid content by a pressing operation. Not only can a given quantity be obtained, the valve 23 of the pump assembly 20 can also enhance a sealing effect to prevent the liquid content from polluting.
  • Besides, the soft tube 10 and the connecting end 12 are integrally formed into a single piece. The connecting end 12 includes a first engagement portion 122 and the pump body 22 has a second engagement portion 221. The pump body 22 is disposed in the storing room 111 by the engagement of the first engagement portion 122 and the second engagement portion 221. Thus, an additional element or process is not necessary to secure the pump assembly 20. This can simplify the manufacturing process and reduce the manufacturing costs.
  • In the single-pieced soft tube 10, the connecting end 12 further includes a blocking portion 123. The pump body 22 is formed with a flange portion 222. The flange portion 222 can abut against the blocking portion 123 to firmly secure the pump assembly 20 and the soft tube 10.
  • On the other hand, the connecting end 12 further includes a receiving space 121 for receiving the pressing head 21 and providing a reciprocating action compartment.
  • Please refer to FIG. 2, which shows the collapsible tube 100. The invention may further include a cap 30. The connecting end 12 is formed with a third engagement portion 124 for engaging with a fourth engagement portion 31 of the cap 30. As a result, the nozzle 211 can keep moist and prevent pollution of dust.
  • The liquid content can be filled into the soft tube 10 through a filling aperture 112. The filling aperture 112 will be sealed up after the liquid content has fully filled.
  • Please refer to FIG. 3. As shown, the first engagement portion 122 is further formed with a guiding slant 1221 and a hook portion 1222. The guiding slant 1221 can guide the second engagement portion 221 of the bump assembly 20 to slide into the connecting end 12 and the hook portion 1222 can withhold the second engagement portion 221, so that the pump assembly 20 can be firmly installed in the soft tube 10.
  • Please refer to FIG. 4, which shows the flowchart of the manufacturing method of the invention. The method includes the steps of:
    • S01 ) providing a soft tube 10. The soft tube 10 includes a tube body 11 with a storing room 111 and a connecting end 12 with a first engagement portion 122;
    • S02) providing a pump assembly 20. The pump assembly includes a pressing head 21 with a nozzle 211 and a pump body 22 with a second engagement portion 221;
    • S03) disposing the pump body in the storing room, and
    • S04) firmly engaging the first engagement portion with the second engagement portion.
  • In the above method, the soft tube 10 and the connecting end 12 are integrally formed into a single piece. The connecting end 12 further includes a blocking portion 123. The pump body 22 is formed with a flange portion 222. The flange portion 222 can abut against the blocking portion 123 to firmly secure the pump assembly 20 and the soft tube 10.
  • On the other hand, the connecting end 12 further includes a receiving space 121 for receiving the pressing head 21 and providing a reciprocating action compartment.
  • Of course, the invention may further include a cap 30. The connecting end 12 is formed with a third engagement portion 124 for engaging with a fourth engagement portion 31 of the cap 30. As a result, the nozzle 211 can keep moist and prevent pollution of dust.

Claims (3)

  1. A collapsible tube (100) with a dispenser pump, comprising:
    a soft tube (10), comprising a tube body (11) with a storing room (111) and a connecting end (12) with a first engagement portion (122); and
    a pump assembly (20), comprising a pressing head (21) with a nozzle (211) and a pump body (22) with a second engagement portion (221);
    wherein the pump body (22) is disposed in the storing room (111), and the first engagement portion (122) firmly engages with the second engagement portion (221), characterized in that the first engagement portion (122) is formed with a guiding slant (1221) and a hook portion (1222), and in that the connecting end (12) is also formed with a third engagement portion (124) for engagement with a fourth engagement portion (31) of a cap (30).
  2. The collapsible tube of claim 1, characterized in that the soft tube (10) and the connecting end (12) are integrally formed into a single piece.
  3. The collapsible tube of claim 2, characterized in that the connecting end (12) includes a receiving space (121) for receiving the pressing head (21) and providing a reciprocating action compartment.
EP13250003.4A 2013-01-04 2013-01-04 Collapsible tube with dispenser pump and method for manufacturing the same Not-in-force EP2752250B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13250003.4A EP2752250B1 (en) 2013-01-04 2013-01-04 Collapsible tube with dispenser pump and method for manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13250003.4A EP2752250B1 (en) 2013-01-04 2013-01-04 Collapsible tube with dispenser pump and method for manufacturing the same

Publications (2)

Publication Number Publication Date
EP2752250A1 EP2752250A1 (en) 2014-07-09
EP2752250B1 true EP2752250B1 (en) 2016-08-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP13250003.4A Not-in-force EP2752250B1 (en) 2013-01-04 2013-01-04 Collapsible tube with dispenser pump and method for manufacturing the same

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6501298B2 (en) * 2015-02-27 2019-04-17 株式会社吉野工業所 Liquid discharge pump device and nozzle structure of liquid discharge pump device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9321517U1 (en) * 1992-11-23 1998-12-24 Hygiene Technik Inc Liquid dispenser
JPH06312019A (en) * 1993-04-30 1994-11-08 Shinko Kagaku Kk Liquid medicine spray receptacle
FR2710036B1 (en) * 1993-09-17 1995-12-01 Sivel Packaging composed of a rigid container inside which is mounted a deformable container containing a product delivered by doses using a pump.
DE10335842C5 (en) * 2003-08-05 2011-04-28 Seaquist Perfect Dispensing Gmbh dispensing pack
IT1393823B1 (en) * 2009-04-20 2012-05-11 Lumson Spa DEVICE FOR CONTAINING WITH AIR HOLDING AND TO SUPPLY FLUID SUBSTANCES
KR101064493B1 (en) * 2009-07-31 2011-09-14 (주)연우 Paper pipe vessel capable of refill

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EP2752250A1 (en) 2014-07-09

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