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
  • B65D41/32—Caps or cap-like covers with lines of weakness, tearing-strips, tags, or like opening or removal devices, e.g. to facilitate formation of pouring openings
  • B65D41/34—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt
  • B65D41/3442—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container
  • B65D41/3447—Threaded or like caps or cap-like covers provided with tamper elements formed in, or attached to, the closure skirt with rigid bead or projections formed on the tamper element and coacting with bead or projections on the container the tamper element being integrally connected to the closure by means of bridges

Definitions

• the invention relates to a closure / pouring combination with tamper-evident device according to the preamble of claim 1.
• Closure / pouring combinations with tamper evidence are known.
• a tamper-evident ring is formed on the circumferential wall of a closure cap by means of tear-off webs, which ring has engagement means that can engage in engagement with engagement means on the neck region of a container in the course of assembly of the closure cap on the container neck region.
• the tamper evident ring represents an axial extension of the cap circumferential wall, cf. DE-A-1955047.
• the tamper-evident ring projects beyond the radial dimensions of the cap peripheral wall.
• the invention is based on the object of improving the handling of such a combination by means of devices for automatically applying the closure cap part to the pouring part while at the same time simplifying the design of the pouring part.
• the closure / pouring combination according to the invention manages without a tear-off tamper-evident ring, in that the tamper-evident function is integrated into the peripheral wall of the closure cap part, i.e. a limited peripheral wall area is left out of it under a certain force acting on it can be separated from the rest of the peripheral wall, whereby a mutual blocking relationship between the peripheral wall region and the pouring part is released and the closure cap part can be removed from the pouring part like a conventional closure cap.
• the recessed peripheral wall area lies, aesthetically advantageous, in the plane of the cap peripheral wall and is therefore not subjected to any particular forces during the manufacture of the closure cap part or during its transport which can cause the peripheral wall area to be prematurely separated from the rest of the cap peripheral wall.
• the invention provides a rear gripping collar on the pouring part with which a preferably flat projection on the closure cap part can engage in locking engagement.
• the invention enables the production of the closure cap part as well as the pouring part in an economical manner by injection molding using suitable plastics, such as polyethylene, polystyrene, polypropylene, etc., whereas the demolding of the closure cap part presents no problems unlike in the case of a tamper-evident ring
• a two-part stabilization arrangement can be provided in order to hold the recessed peripheral wall area in a predetermined position in relation to the cap peripheral wall during assembly and thereby damage the webs in the e prevent initial installation.
• FIG. 2 shows the closure cap part according to FIG. 1 in a longitudinal sectional view
• FIG. 3 shows a section along the section line III-III in FIG. 2,
• top and bottom refer to the position of the structural parts of the closure / pouring combination shown in the drawing.
• the closure cap part of the closure / pouring combination has the general reference number 1 and the pouring part has the reference number 2.
• the pouring part 2 can be the neck of a container or welded part or a separate molded part.
• the pouring part 2 has an essentially tubular configuration with a passage 3 which defines an access opening through which access to the interior of a container is possible.
• a screw thread 4 is provided on the outer circumference of the pouring part 2, which can cooperate with a complementary screw thread 5 on the inside of a cap circumferential wall 6 of the closure cap part 1, so that the closure cap part 1 can be screwed onto the pouring part 2, the access opening being carried out in the course of this process the passage 3 is closed.
• the screw thread 5 can have continuous or, as shown, interrupted threads.
• a rear gripping collar 7 protrudes radially outwards at a location which is matched to the axial position of a recess 8 in the cap peripheral wall 6 of the closure cap part 1, so that a region of the rear gripping collar 7 is fully screwed onto the pouring part 2 Cap part 1 is exposed on the recess 8, as shown in Fig. 4.
• the rear gripping collar 7 has a radially or approximately radially oriented lower gripping surface 9, with which a projection 10 can engage on a circumferential wall region 11 which is recessed in the cap circumferential wall 6 of the closure cap part 1 in order to prevent rotation of the closure cap part 1 in the unscrewing direction.
• the circumferential wall region 11 comprises cross-section-thinned sections 12, 13 which advance or lag in the circumferential or screw-on direction and which are designed as webs via which the circumferential wall region 11 is connected to the adjacent regions of the cap circumferential wall 6. Furthermore, the circumferential wall region 11 has a lower edge 14 which can represent a continuation of the edge 15 of the cap peripheral wall 6. As an alternative to this, the lower edge 14 could also lie within the cap peripheral wall 6.
• One of the webs 12, 13, namely the web 12 leading in the screwing-on direction, is designed such that it can tear under a certain force acting on it, as a result of which the peripheral wall region 11 loses its connection with the cap peripheral wall 6 at this point and interferes with the blocking effect of the engagement the rear gripping collar 7 on the pouring part 2 and the cap-side projection 10 is lost. If desired, further webs 12 of this type can also be provided.
• the other web 13 at the trailing end of the peripheral wall region 11, on the other hand, can be designed in such a way that it is one of those occurring during normal use Forces do not tear, so that the peripheral wall region 11 remains connected to the cap peripheral wall 6 at its trailing end.
• the peripheral wall region 11 can be bent outwards around the web 13 in order to facilitate the release of the projection 10 from the rear gripping collar 7 when the connection on the web 12 has been severed.
• the peripheral wall region 11 which is partially freed from the composite with the cap peripheral wall 6 therefore remains on the closure cap part 1 without polluting the environment.
• the peripheral wall region 11 preferably has an essentially rectangular configuration. It is delimited at its lower axial end by the lower edge 14 and at its upper axial end by an upper edge 16 which, like the lower edge 14, extends in the circumferential direction. On the upper edge 16, the projection 10 is over a thin point or cross-sectional constriction
• the projection 10 integrally formed, which makes it possible for the projection 10 to yield resiliently on the one hand under an upward axial force exerted on it by the rear gripping collar 7, so that the projection 10 can pass through the rear gripping collar 7 when the closure cap part 1 is screwed on, without the Web 12 tears.
• the cross-sectional constriction 17 is sufficiently rigid so that the projection 10 can assume and maintain an interlocking relationship with the undergripping surface 9 of the collar 7 without being folded over when an axial force acts on it in the opposite direction.
• the projection 10 preferably has a circumferential extent which corresponds to that of the upper edge 16 of the circumferential wall region 11 or, if desired, can also be shorter than this.
• the projection 10 has an area on its upper side
• the underside 19 of the projection 10 forms a sliding surface that the Passing the projection 10 along the rear grip collar 7 when screwing the cap part 1 onto the pouring part 2 facilitated by the bottom 19 in the rest position of the projection 10 is inclined upwards and inclined inwards.
• a circumferentially extending stabilizing bar 20 can be formed, which can engage with a complementary elongated groove or a bar on a tensioning tool of an automatic screwing device (not shown), around the peripheral wall area 11 To support unscrewing radially, so that during this process he does not make an excessive radial movement outwards which could cause the web 12 to tear prematurely.
• Other such stabilizers can also be provided.
• FIG. 3 shows a pair of peripheral wall portions 11 with protrusions 10 in diametrical relation to each other.
• a further web near the upper edge 16 can be provided at a parallel distance therefrom, as indicated at 21 in FIG. 1.
• the web 21 also serves to stabilize the peripheral wall region 11.
• the circumferential wall area 11 integrated into the cap circumferential wall 6 of the closure cap part 1 forms a tamper-evident device which provides the user with an indication that no manipulations have been carried out on the closure cap part 1 as long as the connection between the circumferential wall area 11 and the cap circumferential wall 6 is intact.
• the screw mounting of the closure cap part onto the pouring part provided in the above-described embodiment of the invention is preferred, the invention is not restricted to such an installation method.
• a plug-in assembly by so-called bouncing could also be provided.
• the projection and / or the peripheral wall region carrying it can be so flat that, when viewed from the side, the recess in the cap peripheral wall is practically filled in order to further improve the aesthetic appearance of the closure cap part.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Closures For Containers (AREA)
• Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
• Medicines Containing Plant Substances (AREA)
• Cartons (AREA)
• Packages (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7974111

Family Applications (1)

Country Status (7)

Families Citing this family (5)

Family Cites Families (16)

• 2002
  • 2002-08-14 DE DE20212541U patent/DE20212541U1/de not_active Expired - Lifetime
• 2003
  • 2003-08-01 AT AT03793673T patent/ATE391085T1/de not_active IP Right Cessation
  • 2003-08-01 EP EP03793673A patent/EP1529005B1/fr not_active Expired - Lifetime
  • 2003-08-01 DE DE50309545T patent/DE50309545D1/de not_active Expired - Lifetime
  • 2003-08-01 WO PCT/EP2003/008543 patent/WO2004022443A1/fr active IP Right Grant
  • 2003-08-01 AU AU2003255347A patent/AU2003255347A1/en not_active Abandoned
  • 2003-08-01 CN CNB038169363A patent/CN100354188C/zh not_active Expired - Fee Related
  • 2003-08-01 US US10/524,940 patent/US20060006130A1/en not_active Abandoned

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events