GB2415954A - A container cover having a plurality of flaps - Google Patents

A container cover having a plurality of flaps Download PDF

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Publication number
GB2415954A
GB2415954A GB0415311A GB0415311A GB2415954A GB 2415954 A GB2415954 A GB 2415954A GB 0415311 A GB0415311 A GB 0415311A GB 0415311 A GB0415311 A GB 0415311A GB 2415954 A GB2415954 A GB 2415954A
Authority
GB
United Kingdom
Prior art keywords
cover
container
flaps
hooks
latches
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Withdrawn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
GB0415311A
Other versions
GB0415311D0 (en
Inventor
Mu-Chuan Hsu
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.)
L&F Plastics Co Ltd
Original Assignee
L&F Plastics 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 L&F Plastics Co Ltd filed Critical L&F Plastics Co Ltd
Priority to GB0415311A priority Critical patent/GB2415954A/en
Publication of GB0415311D0 publication Critical patent/GB0415311D0/en
Publication of GB2415954A publication Critical patent/GB2415954A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0081—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor of objects with parts connected by a thin section, e.g. hinge, tear line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • 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
    • B65D45/00—Clamping or other pressure-applying devices for securing or retaining closure members
    • B65D45/02—Clamping or other pressure-applying devices for securing or retaining closure members for applying axial pressure to engage closure with sealing surface
    • B65D45/16—Clips, hooks, or clamps which are removable, or which remain connected either with the closure or with the container when the container is open, e.g. C-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/56—Stoppers or lids for bottles, jars, or the like, e.g. closures
    • B29L2031/565—Stoppers or lids for bottles, jars, or the like, e.g. closures for containers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

A cover for a container <B>2</B> comprises a flat portion <B>1</B> conformed to the shape of an opening of the container <B>2</B>. The cover has a plurality of flaps <B>11</B> extending from the flat portion <B>1</B>, a plurality of slits <B>13</B> formed in the flaps <B>11</B> and a plurality of latches <B>12</B> each extending downwardly from the elongate side of an associated slit <B>13</B> in a plane perpendicular to the plane of the flap <B>11</B>. The flaps <B>11</B> are adapted to pivot towards a plurality of upper peripheral hooks <B>21</B> of the container <B>2</B> and the latches <B>12</B> are adapted to secure the hooks <B>21</B> by snapping thereafter. The cover portion <B>1</B> may be rectangular. Also disclosed is a method of ejecting the cover from a mould in a manufacturing process comprising moving a ram to outwardly push a centre of the cover.

Description

241 5954
CONTAINER COVER AND METHOD OF EJECTING SAME r
FIELD OF THE INVENTION
The present invention relates to container covers and more particularly to an improved container cover and a method of ejecting the same in a manufacturing process.
BACKGROUND OF THE INVENTION
Plastic containers are widely used nowadays. Conventionally, a container except its cover is formed integrally in one molding, the cover 10, as shown in FIGS. 1 and 2, comprises a rectangular flat 101 conformed to the shape of an opening of a container, two large flaps 102 extended from two first opposite sides, and two small flaps 102 extended from two second opposite sides. The large flap 102 comprises two bottom latches 103 and the small flap 102 comprises a bottom latch 103. Each latch 103 is adapted to fasten at an upper peripheral hook of the container for securing the container and the cover 10 together. As shown in FIG. 2, a ram 301 and a plurality of bars 302 are required to outwardly push the center of the cover 10 and the flaps 102 respectively so as to remove the cover 10 from the mold in an ejecting step of the manufacturing process.
However, the prior art suffered from a disadvantage. For example, the provision of bars 302 in the ejecting step may complicate the manufacturing process and thus increase the manufacturing cost. Thus, the need for improvement still exists.
It is an object of the present invention to provide an improved form of container cover.
SUMMARY OF THE INVENTION
According to the present invention there is provided a cover releasably mounted on an opening of a container, the container having a plurality of peripheral hooks, the cover comprising a flat portion conformed to the shape of the opening of the container; a plurality of flaps each extending from the flat portion; a plurality of slits formed on the flaps; and a plurality of latches each extending downwardly from an elongated side of the associated slit; wherein the flaps are adapted to pivot toward the hooks and the latches are adapted to secure to the hooks by snapping thereafter.
By utilizing the present invention, the ejecting process is made simple, resulting in a reduction in the manufacturing cost.
In one aspect of the present invention, the flat portion is rectangular.
It is another object of the present invention to provide an improved method of ejecting a container cover from a mold in a manufacturing process, the method comprising moving a ram to outwardly push a center of the cover.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a top plan view of a conventional container cover; FIG. 2 is a schematic sectional view illustrating an ejecting step in manufacturing the cover shown in FIG. 1; FIG. 3 is a top plan view of a container cover according to the invention; FIG. 4 is a schematic sectional view illustrating an ejecting step in manufacturing the cover shown in FIG. 3; and FIG. 5 is a sectional view of a container having the cover of FIG. 3 mounted and fastened thereon.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 3, there is shown a container cover 1 constructed in accordance with a preferred embodiment of the invention comprising a rectangular flat conformed to the shape of an opening of a container, two large flaps 11 extended from two first opposite sides, and two small flaps 11 extended from two second opposite sides. The large flap 11 comprises two spaced slits 13 and two bottom latches 12 each extended downwardly from the elongated side of the slit 13. The small flap 102 comprises a slit 13 and a bottom latch 12 extended downwardly from the elongated side of the slit 13.
Referring to FIG. 4, only a ram 31 is required to outwardly push the center of the cover 1 so as to remove the cover 1 and four flaps 11 including the latches 12 from a mold in an ejecting step of the manufacturing process. In view of the above, it is a simple process, resulting in a reduction in the manufacturing cost.
Referring to FIG. 5, the cover 1 is put on an opening of a container 2 with the flaps 11 being pivoted downwardly toward peripheral hooks 21 of the container 2 such that the latches 12 may be secured to the hooks 21 by snapping. Note that the slits 13 can provide an elastic deformation in the above snapping step such that fastening or unfastening of the hooks 21 and the latches 12 can be made easy.

Claims (4)

  1. Claims: 1. A cover releasably mounted on an opening of a container, the
    container having a plurality of peripheral hooks, comprising: a flat portion conformed to the shape of the opening of the container; a plurality of flaps each extending from the flat portion; a plurality of slits formed on the flaps; and a plurality of latches each extending downwardly from an elongated side of the associated slit; wherein the flaps are adapted to pivot toward the hooks and the latches are adapted to secure to the hooks by snapping thereafter.
  2. 2. The container cover of claim 1, wherein the flat portion is rectangular.
  3. 3. A container cover substantially as hereinbefore described with reference to and as shown in Figures 3 to 5 of the accompanying drawings.
  4. 4. A method of ejecting a container cover from a mold in a manufacturing process, the method comprising moving a ram to outwardly push the center of the cover.
GB0415311A 2004-07-08 2004-07-08 A container cover having a plurality of flaps Withdrawn GB2415954A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0415311A GB2415954A (en) 2004-07-08 2004-07-08 A container cover having a plurality of flaps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0415311A GB2415954A (en) 2004-07-08 2004-07-08 A container cover having a plurality of flaps

Publications (2)

Publication Number Publication Date
GB0415311D0 GB0415311D0 (en) 2004-08-11
GB2415954A true GB2415954A (en) 2006-01-11

Family

ID=32865648

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0415311A Withdrawn GB2415954A (en) 2004-07-08 2004-07-08 A container cover having a plurality of flaps

Country Status (1)

Country Link
GB (1) GB2415954A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014103147U1 (en) * 2014-07-09 2015-10-12 Emsa Gmbh Storage container for food

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3817419A (en) * 1972-02-22 1974-06-18 Continental Can Co Latch to secure a closure on a container
EP0557060A2 (en) * 1992-02-19 1993-08-25 Ethicon, Inc. Thermoformed plastic package with quick-release reclosable cover
US5538154A (en) * 1993-06-14 1996-07-23 Von Holdt; John W. Snap-on, flexible lid
EP1172304A1 (en) * 2000-07-15 2002-01-16 Hana Cobi Co., Ltd. Plastic made rectangular airtight container for food
WO2004035411A1 (en) * 2002-10-16 2004-04-29 Vaticano Inc. Airtight container for storing foods

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3817419A (en) * 1972-02-22 1974-06-18 Continental Can Co Latch to secure a closure on a container
EP0557060A2 (en) * 1992-02-19 1993-08-25 Ethicon, Inc. Thermoformed plastic package with quick-release reclosable cover
US5538154A (en) * 1993-06-14 1996-07-23 Von Holdt; John W. Snap-on, flexible lid
EP1172304A1 (en) * 2000-07-15 2002-01-16 Hana Cobi Co., Ltd. Plastic made rectangular airtight container for food
WO2004035411A1 (en) * 2002-10-16 2004-04-29 Vaticano Inc. Airtight container for storing foods

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014103147U1 (en) * 2014-07-09 2015-10-12 Emsa Gmbh Storage container for food

Also Published As

Publication number Publication date
GB0415311D0 (en) 2004-08-11

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)