EP3165476A1 - Système de fermeture et récipient comprenant un système de fermeture - Google Patents

Système de fermeture et récipient comprenant un système de fermeture Download PDF

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Publication number
EP3165476A1
EP3165476A1 EP16192285.1A EP16192285A EP3165476A1 EP 3165476 A1 EP3165476 A1 EP 3165476A1 EP 16192285 A EP16192285 A EP 16192285A EP 3165476 A1 EP3165476 A1 EP 3165476A1
Authority
EP
European Patent Office
Prior art keywords
applicator
outer part
closing member
locking
closure system
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.)
Withdrawn
Application number
EP16192285.1A
Other languages
German (de)
English (en)
Inventor
Andreas Geiger
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.)
Hoffmann Neopac AG
Original Assignee
Hoffmann Neopac AG
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 Hoffmann Neopac AG filed Critical Hoffmann Neopac AG
Publication of EP3165476A1 publication Critical patent/EP3165476A1/fr
Withdrawn legal-status Critical Current

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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
    • B65D41/00—Caps, e.g. crown caps or crown seals, i.e. members having parts arranged for engagement with the external periphery of a neck or wall defining a pouring opening or discharge aperture; Protective cap-like covers for closure members, e.g. decorative covers of metal foil or paper
    • B65D41/62—Secondary protective cap-like outer covers for closure members
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • B65D47/2056—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type
    • B65D47/2062—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem
    • B65D47/2068—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure lift valve type in which the deformation raises or lowers the valve stem in which the stem is lowered by the pressure of the contents and thereby opening the valve
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/36—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for applying contents to surfaces
    • B65D35/38—Nozzles
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/44—Closures
    • B65D35/46—Closures with valves
    • 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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge

Definitions

  • the invention relates to a closure system and a container with a closure system according to the preamble of claims 1 and 10.
  • Tubes, bottles or similar containers of fluid or liquid or pasty media comprise outlet openings, which can be closed by closures such as screw-on lids or snap-on protective caps.
  • closures such as screw-on lids or snap-on protective caps.
  • the closure comprises a hood cover with a dispensing opening and an axially movable closure member for closing this dispensing opening.
  • the closing member is formed as part of a hood-like elastic hollow body.
  • the medium passes from the container into a space between the outside of the hollow body and the hood cover. By pressure from the outside of the container, the medium is pressed into the intermediate space and exerts there a compressive force on the outside of the hood-like hollow body.
  • the increase in the restoring forces can lead to unacceptably high actuating forces, especially in the case of highly viscous fillers.
  • An object of the present invention is therefore to provide an easy-to-use closure system with a reliably sealable dispensing opening. This object is achieved by a closure system and by a container with a closure system according to the features of claims 1 and 10.
  • the closure system is suitable for attachment to the output neck of a tube-like or bottle-like container. It includes an applicator, which is fastened to the dispensing neck of the container, for example by means of a screw cap or bounce clip. By applying pressure to the container, the fluid is forced out of the container into a channel of the applicator. From there it passes through passage openings in a chamber which is enclosed by a valve cover with an outlet opening.
  • a closing body or closing member is formed and attached to the applicator that it is pressed by the restoring force of an elastic return means from the inside of the chamber against a valve seat at the outlet opening and thus closes the outlet opening, if no or only one of the chamber forth very low compressive force acts on the surface of this closing organ.
  • the closing member is preferably a convexly curved portion of a membrane-like, elastic hood educated. The return means is thus the hood itself.
  • this may for example also comprise an elastic foam body and / or a spring as elastic return means.
  • the closing member or at least the outer surface of the closing member or the hood is impermeable to the respective contents in the container and preferably comprises a thermoplastic elastomer or a silicone-containing material.
  • the closing member is attached to the applicator such that a pressure force acting on the chamber-side surface of the closing member counteracts the elastic restoring force of the return means.
  • a pressure force acting on the chamber-side surface of the closing member counteracts the elastic restoring force of the return means.
  • the closing member abuts the valve seat in the closed state of the valve, it is pressed by a remaining closing force of the return means to the valve seat. If the pressure force acting on the chamber-side surface of the closing element exceeds the closing force of the closing member, the return means deforms elastically. As a result, the closing member is released from the valve seat and there is an opening gap between the closing member and the valve cover, so that the medium can be pressed out of the outlet opening by the overpressure in the chamber.
  • closing force with which the closing member bears against the valve seat of the valve cover when the valve is closed may be locally different.
  • their shape and / or their wall thickness distribution over the entire closing organ can significantly influence the reaction to externally acting pressure forces.
  • thin areas of the membrane can already deform under compressive forces which are significantly smaller than the closing force.
  • closing force therefore refers to that pressure force which, at the corresponding pressure in the chamber, relative to the ambient pressure causes the closing element to begin to come loose from the valve seat.
  • the closing member may also comprise an elastic foam body, preferably a foam body of a closed-cell foam as return means.
  • An open cell foam could also be used if its surface comprises a thin medium impermeable skin.
  • the return means is deformed with increasing pressure in the chamber so that the closing member in the axial direction with respect to the outlet opening of the valve seat dissolves when the closing pressure is exceeded.
  • This is possible, for example, when the closing organ is curved in a convex manner Section of a membrane-like hood is formed, in which the pressure force of the medium can act in the axial direction of the membrane.
  • the closing member may also be designed so that it is deformable in the radial direction under the action of a chamber-side pressure force.
  • the closing member could comprise a portion of resilient foam having the shape of a cylinder, or cone, and inserted in the chamber side into a corresponding coaxial portion of the outlet opening in the valve bonnet.
  • This elastic portion of the closing member which is also the return means, compressed, whereby an annular gap is formed through which the medium can escape from the chamber.
  • the pressure force acts within the chamber everywhere orthogonally on the surface of the closing member and can thus have at each point a radial component and / or an axial component.
  • the closure system comprises a mechanical locking element whose position can be changed relative to the closing member between a blocking position and a release position.
  • the blocking element In the blocking position, the blocking element has the effect of a mechanical stop for the closing organ. This stop limits the range of motion of the closing organ and thereby causes that the closing member reliably closes the outlet opening even if the pressure in the chamber exceeds the blocking pressure.
  • the blocking element is in the blocking position directly in contact with the closing member and pushes this with an additional locking force against the valve seat. This additional locking force supports the restoring force of the elastic return means. Even with a medium with a comparatively high viscosity, the valve can be reliably and tightly closed when not in use.
  • the blocking element If the blocking element is moved relative to the closing member in the release position, it no longer acts as a stop for the closing member. As soon as the pressure in the chamber exceeds the barrier pressure, the closing member is pushed away from the outlet opening, and the medium can be forced out through the outlet opening.
  • the pressure to be exerted on the tube or container can be kept comparatively small, since the restoring force of the return means to be overcome is likewise comparatively small.
  • the applicator comprises an inner part, which is connected to the output neck of the container, and an outer part, which is guided guided guided on the inner part.
  • the blocking element is arranged on the inner part, while the valve cover and the blocking element are arranged on the outer part.
  • the unit can off Valve cover, locking member and the outer part of the applicator are moved relative to the inner part of the applicator between the locking position and the release position back and forth.
  • Locking systems in which the inner part of the applicator comprises a tubular section at the front end of which protrudes a locking element designed in the manner of a bolt are particularly advantageous.
  • the outer part of the applicator can be designed in the manner of a hood, which has a guide opening at the front, through which the locking pin protrudes.
  • the locking pin acts as an axial guide element for moving the outer part in the axial direction relative to the inner part of the applicator.
  • Suitable stop means for example an annular bead on the outside of the inner applicator part and two axially spaced annular beads on the inside of the outer applicator part limit the range of motion of the two applicator parts relative to each other in the axial direction.
  • radially outstanding thread cams can be formed on the outside of the inner part, which are in engagement with a corresponding thread groove on the inside of the outer part.
  • the axial position of the two parts relative to each other between the locking position and the release position can be changed.
  • the ends of the thread groove or alternatively of Gewindestutabitesen can be used as a stop elements that define the blocking position and the release position.
  • the adjustment of the relative axial position of the locking element by a rotary movement is good and easy to control. Due to the pitch of the thread groove and the force required to adjust the blocking element can be influenced.
  • the applicator comprises non-positive locking means which in the two end positions cause an increased force required to move the inner part and the outer part of the applicator relative to each other from the blocking position or from the release position.
  • FIG. 1 shows a container 1 in the form of a tube, wherein on the output neck 1a of the container 1, a closure system 3 is attached.
  • FIG. 2 shows a longitudinal section of this arrangement in the region of the closure system 3 in a locked state, which prevents leakage of the medium from the container 1 even when the medium in the container 1 is pressurized.
  • the closure system 3 comprises an applicator 5 with an inner part 5a and an outer part 5b.
  • the inner part 5a is in FIG. 4 in perspective and in FIG. 5 shown in a view from below, the outer part 5b in an analogous manner in the FIGS. 6 and 7 ,
  • the applicator inner part 5a is fastened to the dispensing neck 1a, for example by means of a baffle connection or a screw connection, and comprises a tubular section with an inlet opening 15 facing the container 1 and one or more, eg four primary through openings 17a in the region of the opposite tube end.
  • a symmetrical locking bolt with rounded end axially on the pipe section.
  • two threaded cams 21 protrude radially on its outer lateral surface. They are engaged in appropriate
  • Gewindestutabitesen 23 on the inside of a jacket pipe section of the applicator outer part 5b In the view of the applicator outer part 5b from below in FIG. 7 are two diametrically opposite annular sector-like recesses 24 visible on the inside of the applicator outer part 5b, through which the threaded cam 21 of the applicator inner part 5a can be inserted into the thread groove 23.
  • the outer part 5b is formed like a hood. It surrounds the inner part 5a and comprises at its front end a guide opening 25, through which the blocking element 19 protrudes.
  • the guide opening 25 or the inner edge of the applicator outer part 5b adjoining the blocking element 19 are designed such that the blocking element 19 bears tightly against this inner edge and displaces both axially in the direction of the axis of rotation A relative to the applicator outer section 5b and about the axis of rotation A can be turned.
  • Peripheral to the guide opening 25 are excluded at the front end of the outer part 5b a plurality of secondary through holes 17b. Between these secondary Through openings 17b and the centrally disposed guide opening 25, the outer part 5b comprises an axially projecting retaining ring 27th
  • the closing member 7 is in FIG. 7 in perspective and in FIG. 8 shown from below. It comprises an elastic membrane-like hood whose lower edge region is slipped over the retaining ring 27 and fastened to this retaining ring 27.
  • the closing member 7 further comprises a central dome-shaped or convexly curved closing body 8, which is pressed due to the elastic restoring force of the closing member 7 to an annular valve seat at the outlet opening 11 of the valve cover 9 and thus closes the valve.
  • the valve cover 9 is in FIG. 10 in perspective and in FIG. 11 shown from below.
  • the locking pin and the cavity in the interior of the closing body 8 are slightly conical. This facilitates the insertion of the locking pin in this cavity when the closure system changes by turning the valve cover 9 and the applicator outer part 5b with the valve cover 9 from the release position into the blocking position.
  • the locking pin has a greater taper than the cavity in the closing body 8 and the locking pin at least partially has a larger diameter than the input diameter of the cavity in the closing body 8, the locking pin pushes the closing body 8 in the blocking position also radially outward. As a result, the sealing of the outlet opening 11 in the blocking state can be further improved.
  • valve cover 9 In addition to the closing member 7 and the valve cover 9 is positively and / or positively non-rotatably connected to the applicator outer part 5b.
  • the valve cover 9 is slipped over from the side with the closing member 7 over the applicator outer part 5b.
  • resilient locking elements 28 are pressed with heels by a conical annular collar 29 on the outside of the applicator outer part 5b to the outside. After overcoming this annular collar 29, the locking elements 28 jump back. Due to the undercut of the locking elements 28 and the annular collar 29, the valve cover 9 is held on the applicator outer part 5b.
  • the lower edge of the valve cover 9 is in the assembled state on a shoulder 31 in the lower region of the applicator outer part 5b and is supported radially on the inside by a support ring 33.
  • the rotationally fixed connection of the valve cover 9 with the applicator outer part 5b can be done by non-positive concern and / or by form-fitting engaging behind sections.
  • the outside of the support ring 33 and the inside of the valve cover may be interlocked with each other (not shown).
  • the lower portion of the applicator outer portion 5b is adjacent to the shoulder 31 as a skirt 32 formed with an outer side corrugation, which improves the grip when turning the outer part 5b and the rotatably connected parts.
  • annular bead 35 is formed on the inside of the valve cover 9, which is pressed against the outer wall of the applicator outer part 5b.
  • This compound is also dense or impermeable to the contents of the container. 1
  • the uppermost region of the valve cover 9 and the outer side of the closing element 7 delimit a chamber 37 into which the secondary through-openings 17b of the applicator outer part 5b open.
  • the secondary through-holes 17b are connected to the primary through-holes 17a and thus to the interior of the container 1 via the tubular portion of the applicator inner part 5a ,
  • annular bead 36 which protrudes slightly radially beyond the outer surface of the tubular portion in the region of the front end of the applicator inner part 5a, rests against the inner wall of the applicator outer part 5b. This contact zone is sealed to the medium in the space 39, even when it is slightly pressurized.
  • the annular bead 36 is also a guide means, which permits a relative translational movement and rotational movement of the outer part 5b and the inner part 5a of the applicator in or about the axis of rotation A.
  • the protective cover 13 When not in use, the protective cover 13 can be slipped over the valve cover 9 and e.g. be releasably connected by a snap connection with this again.
  • On the inside of the protective hood 13 are for this purpose, two or more portions of an annular rib 41 inwardly and on the outside of the valve cover a corresponding retaining groove 43 is formed.
  • FIG. 3 shows the locking system FIG. 2 without cap 13 in a release position.
  • the valve cover 9 Starting from the blocking position is the valve cover 9 relative to the applicator inner part 5a, which is rotatably connected to the container 1, preferably rotated about a quarter to one third of a full revolution.
  • Due to the pitch of the Gewindenutabitese 23, which mesh with the threaded cam 21, the unit of the valve cover 9, applicator outer part 5b and closing member 7 in the direction of the axis of rotation A from the output neck 1a of the container 1 is moved away. As a result, the closing member 7 is released from the blocking element 7.
  • the volume of the intermediate space 39 is slightly increased.
  • the medium By pressure on the elastically or plastically deformable container 1, the medium can be pressed into the chamber 37. If the pressure of the medium in the chamber 37 exceeds a blocking pressure, the closing element 7 is elastically deformed and releases the outlet opening 11, so that the medium can be pressed out. Subsequently, the closure system is brought by turning the valve cover 9 in the opposite direction of rotation back into the blocking position. In this case, the volume of the gap 39 is again slightly smaller. The medium is thereby again slightly pressurized. This causes a portion of the thus displaced medium to be forced back towards the container 1 and part of the medium is pressed out of the closure system through the not yet blocked outlet opening 11. Possible contaminations of the medium in the region of the outlet opening 11 are reliably expelled, whereby the risk of contamination of the medium in the chamber 37 can be minimized.
  • the closure system is suitable in conjunction with containers 1 which are elastically or plastically deformable in order to push the medium out of the container through the outlet opening 11.
  • the closure system may also be used with rigid containers in which the medium is otherwise sealed e.g. is pressurized by a piston or by a suitable gas.
  • corresponding ventilation ducts may be provided (not shown). Preferably, these are designed and arranged so that the air is not sucked through the outlet opening 11 in the valve cover 9, otherwise germs or dirt particles could get into the chamber 37.
  • air ducts may include filters and / or one-way valves which ensure that only clean air can enter and that the medium can not escape through these ducts.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)
EP16192285.1A 2015-11-06 2016-10-04 Système de fermeture et récipient comprenant un système de fermeture Withdrawn EP3165476A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH01614/15A CH711731A1 (de) 2015-11-06 2015-11-06 Verschlusssystem und Behälter mit Verschlusssystem.

Publications (1)

Publication Number Publication Date
EP3165476A1 true EP3165476A1 (fr) 2017-05-10

Family

ID=57280944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16192285.1A Withdrawn EP3165476A1 (fr) 2015-11-06 2016-10-04 Système de fermeture et récipient comprenant un système de fermeture

Country Status (4)

Country Link
US (1) US10293990B2 (fr)
EP (1) EP3165476A1 (fr)
CA (1) CA2944055A1 (fr)
CH (1) CH711731A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG11202007779QA (en) * 2018-03-02 2020-09-29 Handi Craft Co Bottle assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000007900A1 (fr) * 1998-08-03 2000-02-17 Veresk Biosystems Limited Distributeur a diaphragme pour contenant
EP1188679A2 (fr) 2000-08-02 2002-03-20 MegaPlast GmbH & Co. KG Fermeture automatique pour récipient élastique déformable
FR2922527A1 (fr) * 2007-10-17 2009-04-24 Maitrise & Innovation Sarl Bouchon anti-goutte comportant un moyen elastique integre a une soupape
EP2537773A1 (fr) * 2010-02-15 2012-12-26 Shuntaro Abe Réceptacle de stockage et des fluide et son couvercle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075249A (en) * 1935-11-23 1937-03-30 Ralph W Wilson Closure for containers
US2711271A (en) * 1954-09-16 1955-06-21 Theodore F Schlicksupp Self-closing collapsible tube mechanism with lock
US4511273A (en) * 1982-09-28 1985-04-16 The Gillette Company Correction fluid dispenser having a retractable and lockable sealing tip
JPS6282953U (fr) * 1985-11-13 1987-05-27
DE10157423A1 (de) * 2001-11-25 2003-06-05 Roland Knauer Behälter mit elastischem Ventil
US6832706B2 (en) * 2003-01-10 2004-12-21 Alcoa Closure Systems International Dispensing closure
DE102011007396A1 (de) * 2011-04-14 2012-10-18 Ing. Erich Pfeiffer Gmbh Austragkopf für eine Tube und Tube mit Austragkopf
KR101278879B1 (ko) * 2012-04-06 2013-06-26 (주)연우 공기 유입 차단이 가능한 튜브용기

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000007900A1 (fr) * 1998-08-03 2000-02-17 Veresk Biosystems Limited Distributeur a diaphragme pour contenant
EP1188679A2 (fr) 2000-08-02 2002-03-20 MegaPlast GmbH & Co. KG Fermeture automatique pour récipient élastique déformable
FR2922527A1 (fr) * 2007-10-17 2009-04-24 Maitrise & Innovation Sarl Bouchon anti-goutte comportant un moyen elastique integre a une soupape
EP2537773A1 (fr) * 2010-02-15 2012-12-26 Shuntaro Abe Réceptacle de stockage et des fluide et son couvercle

Also Published As

Publication number Publication date
US10293990B2 (en) 2019-05-21
US20170129657A1 (en) 2017-05-11
CH711731A1 (de) 2017-05-15
CA2944055A1 (fr) 2017-05-06

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