FR2275259A1 - Press tools for tear-off cover groove - consists of cylindrical punch and die with sloping edges to preserve inner surfaces - Google Patents

Press tools for tear-off cover groove - consists of cylindrical punch and die with sloping edges to preserve inner surfaces

Info

Publication number
FR2275259A1
FR2275259A1 FR7516959A FR7516959A FR2275259A1 FR 2275259 A1 FR2275259 A1 FR 2275259A1 FR 7516959 A FR7516959 A FR 7516959A FR 7516959 A FR7516959 A FR 7516959A FR 2275259 A1 FR2275259 A1 FR 2275259A1
Authority
FR
France
Prior art keywords
tool
edges
groove
tear
die
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Withdrawn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
FR7516959A
Other languages
French (fr)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2275259A1 publication Critical patent/FR2275259A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/38—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures
    • B21D51/383—Making inlet or outlet arrangements of cans, tins, baths, bottles, or other vessels; Making can ends; Making closures scoring lines, tear strips or pulling tabs
    • 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
    • B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
    • B65D17/28—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions at lines or points of weakness
    • B65D17/404—Details of the lines of weakness

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Opened By Tearing Frangible Portions (AREA)
  • Closures For Containers (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)

Abstract

The groove tool prevents damage to the lacquer on the inner face of the tin cover. The torn edges have relatively clean edges without sharp projections. No relacquering is necessary to protect the groove pressed into sheet metal. The tearing groove is pressed into the lid by a cylindrical tool with a flat square nose. The lower tool has a concave seat of smooth curvature and the sharp indentation is made by the upper tool. The lower tool has an inclined edge below the sharp square edge of the upper tool and the material impressed between these two edges. The upper tool can also be a hollow cylinder whose inner edges produce the indentation.
FR7516959A 1974-05-30 1975-05-30 Press tools for tear-off cover groove - consists of cylindrical punch and die with sloping edges to preserve inner surfaces Withdrawn FR2275259A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH738074A CH577860A5 (en) 1974-05-30 1974-05-30

Publications (1)

Publication Number Publication Date
FR2275259A1 true FR2275259A1 (en) 1976-01-16

Family

ID=4324230

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7516959A Withdrawn FR2275259A1 (en) 1974-05-30 1975-05-30 Press tools for tear-off cover groove - consists of cylindrical punch and die with sloping edges to preserve inner surfaces

Country Status (3)

Country Link
CH (1) CH577860A5 (en)
DE (1) DE2523216A1 (en)
FR (1) FR2275259A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004252A1 (en) * 1978-03-08 1979-09-19 STYNER & BIENZ AG Method for making a funnel for aerosol containers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2816860C2 (en) * 1978-04-18 1983-03-10 Styner & Bienz Ag, Niederwangen, Bern Method and apparatus for manufacturing an aerosol funnel
JP2019529259A (en) * 2016-09-06 2019-10-17 ストール マシーナリ カンパニー, エルエルシーStolle Machinery Company, LLC Container closure with shift material line, and tooling and method for manufacturing the closure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004252A1 (en) * 1978-03-08 1979-09-19 STYNER & BIENZ AG Method for making a funnel for aerosol containers

Also Published As

Publication number Publication date
CH577860A5 (en) 1976-07-30
DE2523216A1 (en) 1975-12-11

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Legal Events

Date Code Title Description
ST Notification of lapse