EP0084496A2 - Anlage zum Öffnen von unter Väkuum stehenden Einmachgefässen - Google Patents

Anlage zum Öffnen von unter Väkuum stehenden Einmachgefässen Download PDF

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Publication number
EP0084496A2
EP0084496A2 EP83400090A EP83400090A EP0084496A2 EP 0084496 A2 EP0084496 A2 EP 0084496A2 EP 83400090 A EP83400090 A EP 83400090A EP 83400090 A EP83400090 A EP 83400090A EP 0084496 A2 EP0084496 A2 EP 0084496A2
Authority
EP
European Patent Office
Prior art keywords
tongue
tool
branches
rubber
clamping
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.)
Granted
Application number
EP83400090A
Other languages
English (en)
French (fr)
Other versions
EP0084496A3 (en
EP0084496B1 (de
Inventor
Jean Bisson
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
Priority to AT83400090T priority Critical patent/ATE23983T1/de
Publication of EP0084496A2 publication Critical patent/EP0084496A2/de
Publication of EP0084496A3 publication Critical patent/EP0084496A3/fr
Application granted granted Critical
Publication of EP0084496B1 publication Critical patent/EP0084496B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/20—Hand- or power-operated devices for opening closed containers for breaking vacuum seals between lids or covers and bodies of preserving jars, e.g. by wedge action
    • B67B7/22—Hand- or power-operated devices for opening closed containers for breaking vacuum seals between lids or covers and bodies of preserving jars, e.g. by wedge action incorporating loops, e.g. of wire, which are tightened around seal

Definitions

  • the present invention relates to a device for the easy and safe opening of vacuum preserving jars with circular horizontal section in which a rubber ring of standardized thickness with lateral tab is interposed between the lid and the edges of the jar so sealing it.
  • the opening of these jars is traditionally carried out using objects as diverse as pliers, knives, screwdrivers which risk causing injury to the user and damaging the material of the jar, the rubber and its lid.
  • the essential object of the invention is to remedy these drawbacks by proposing a new device which makes it easy and safe to effortlessly open jars of the indicated type.
  • the device is designed to act on the rubber tongue so as to tighten it by stretching the intermediate ring without, however, risking breaking it.
  • the device is in the form of a tool without no movable part comprising, at one end of a handle and in the extension thereof, two resistant branches slightly apart with a general profile in half-tubes to receive between them, in the passage thus formed, the rubber tongue by pushing or pulling the tool in a horizontal tangential direction relative to the jar so that this tongue is tightened along two parallel lines spaced between the lips opposite the two branches and that a rotation of the tool around its axis stretches rubber by thinning it between the jar and the lid to allow an air intake and an easy opening.
  • the forked tool provides between the opposite edges of its two branches a space of width less than the standardized thickness of the rubber tongue, this space having been experimentally determined so that this tongue is tightened by the four lips formed by the opposite edges of the half-tubes which turn their concavities towards each other allowing the rubber, due to its elasticity, to swell on either side of the clamping edges and, thus ensuring a satisfactory bond between the tool and the tongue without risk of the rubber breaking.
  • the entry of the rubber tongue into the passage formed between the two half-tubes can be flared over a small fraction of the length of the half-tubes to facilitate the engagement of the tongue by causing it to be gradually tightened during its introduction. between the two facing branches.
  • each of these branches which constitute the four clamping lips may have notches or teeth opposing the sliding of the rubber after engagement of the tool.
  • the tool On the side opposite the entry of the tongue between the clamping arms, the tool may advantageously have a stop or a shoulder limiting the engagement movement of the tool by the stop of the rubber tongue at the bottom of the passage provided for it between the two branches of the tool.
  • bosses or grooves on the outer surface of the half-tubes, further reducing the risk of the rubber slipping when it is stretched by rotation of the tool taking press against the edge of the jar or lid. These bosses or grooves can further strengthen the mechanical strength of the branches.
  • the cavities formed by the interior of the two branches between their clamping edges allow the bulging of the repressed rubber by the engagement of the tool which is thus facilitated while then allowing a perfect connection between the tool and the rubber tongue.
  • the tool according to the invention is in no way comparable to tools having flat surfaces on either side of a passage formed between these surfaces as is the case with certain keys for winding metal lids of metal cans. A tool with facing flat surfaces could not moreover engage on the tongue by tightening it in the desired manner.
  • the two characteristic half-tubes of the device according to the invention can be obtained by various means, or from two. suitably profiled separate parts, or on the contrary from a single piece shaped to present the two half-tubes facing each other by forming the four tightening lips which have been mentioned.
  • These lips can be obtained for example by cutting two parallel open slits, made opposite in an initial tube or by folding a concave bar with a trough profile so as to leave between two branches a passage whose width is less than the thickness of the rubber.
  • FIG. 1 there is indicated at 1 a jar of vacuum cans whose cover 2 is applied to the jar with the interposition of a rubber ring 3 having a tongue 4 projecting outward.
  • the opening tool according to this exemplary embodiment of the invention comprises a handle 5 carrying a tube 6 made of metal or any other suitable material of good mechanical strength, the free end of which is divided into two half-arms tubes 7 by a longitudinal slot 8 intended to receive the tongue 4 for clamping between the four lips 9 opposite two by two of the two branches 7.
  • the width of the slot 8 is less than the thickness of the rubber tongue 4 which is thus tightened when this tongue is introduced between the two half-tubes 7 by pushing the tool in a tangential horizontal direction relative to the jar .
  • the free ends of its two branches 7 have a spacing greater than the thickness of the tongue, for example by presenting a flared tray 10 composed of the two ends of the branches or half tubes.
  • the outside diameter of the tube 6 must obviously not exceed the radial extent of the tongue 4, the outer end of which protrudes from the edge of the tool opposite the base of this tongue.
  • the external surface of the clamping arms can have various arrangements of bosses or grooves against which the base of the tongue rests, favoring the drawing in question.
  • each of the two branches of the tool clamping fork can be modified while using the principle of clamping the tongue between opposite lips.
  • Figure 5 there is shown a variant of Figure 4 comprising two branches with a profile provided with a central membrane 13 which can strengthen the branches while having additional clamping lips.
  • FIG. 5 representing the forked part of the tool with a transverse section of the fork, there is also indicated at 14 one of the longitudinal grooves which can be provided on the outer periphery of the forked part and at 15 a transverse groove.
  • Such grooves can on the one hand oppose the sliding of the tongue on the tool during its rotation while strengthening the clamping branches.
  • branches with profile in half-tubes which characterize the invention can be obtained by various manufacturing processes, in particular by processes for shaping and assembling the tool making it possible to obtain this tool starting, for example, from flat metal bars intended to be cut and stamped instead of from tubes.
  • FIG. 6 shows the use of two clamping arms 16 constituted by two separate parts whose ends 17 opposite the entry 18 of the housing of the tongue 4 are fixed, for example by welding, to an internal wedge 19 does not extending only over a fraction of the length of the branches, the assembly then being intended to be mounted in a handle 5.
  • Obtaining clamping branches can also be obtained by folding a profile bar in a half-tube as shown in FIG. 7 in which we see a handle 5 carrying one end of a bar 20 with a profile in a half-tube. the other end of which 21 has been folded back at 22 to form a shorter branch up to the entrance 23 of the gap 24 intended to receive the tongue 4.
  • the entrance 23 is thus between the handle 5 and the bottom of the housing of the tongue 4 which is introduced between the two branches 20-21 by tangential traction of the tool instead of being introduced by pushing the tool.
  • Figure 7 a variant in which the tool consists of a handle 5 and a tubular piece of sufficient mechanical strength 26 having a curved slot 27 of which l entry 28 is towards the handle and which extends towards the front of the tool, stopping before the end of this tool so as to still allow the engagement of the tongue through the slot 27 by pulling the tool.
  • the free end of the tube constituting the two clamping arms can receive a complementary end piece, for example a drilling punch or cutting blade for another use.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Table Equipment (AREA)
  • Packages (AREA)
EP83400090A 1982-01-14 1983-01-13 Anlage zum Öffnen von unter Väkuum stehenden Einmachgefässen Expired EP0084496B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83400090T ATE23983T1 (de) 1982-01-14 1983-01-13 Anlage zum oeffnen von unter vaekuum stehenden einmachgefaessen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8200525 1982-01-14
FR8200525A FR2519623B1 (fr) 1982-01-14 1982-01-14 Dispositif permettant l'ouverture des bocaux de conserve sous vide

Publications (3)

Publication Number Publication Date
EP0084496A2 true EP0084496A2 (de) 1983-07-27
EP0084496A3 EP0084496A3 (en) 1983-08-10
EP0084496B1 EP0084496B1 (de) 1986-12-03

Family

ID=9269985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83400090A Expired EP0084496B1 (de) 1982-01-14 1983-01-13 Anlage zum Öffnen von unter Väkuum stehenden Einmachgefässen

Country Status (4)

Country Link
EP (1) EP0084496B1 (de)
AT (1) ATE23983T1 (de)
DE (1) DE3368042D1 (de)
FR (1) FR2519623B1 (de)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR694252A (fr) * 1930-04-22 1930-12-02 Clef à tube pour ouvrir les boîtes de conserves
FR79338E (fr) * 1961-03-10 1962-11-16 Ouvre-bocal

Also Published As

Publication number Publication date
EP0084496A3 (en) 1983-08-10
EP0084496B1 (de) 1986-12-03
ATE23983T1 (de) 1986-12-15
FR2519623B1 (fr) 1986-01-31
DE3368042D1 (en) 1987-01-15
FR2519623A1 (fr) 1983-07-18

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