EP0487939B1 - Dosenöffner - Google Patents

Dosenöffner Download PDF

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Publication number
EP0487939B1
EP0487939B1 EP91118756A EP91118756A EP0487939B1 EP 0487939 B1 EP0487939 B1 EP 0487939B1 EP 91118756 A EP91118756 A EP 91118756A EP 91118756 A EP91118756 A EP 91118756A EP 0487939 B1 EP0487939 B1 EP 0487939B1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
motor
drive
rotation
wheel
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.)
Expired - Lifetime
Application number
EP91118756A
Other languages
English (en)
French (fr)
Other versions
EP0487939A1 (de
Inventor
Pierre Brisard
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.)
Moulinex SA
Original Assignee
Moulinex SA
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 Moulinex SA filed Critical Moulinex SA
Priority to AT91118756T priority Critical patent/ATE93814T1/de
Publication of EP0487939A1 publication Critical patent/EP0487939A1/de
Application granted granted Critical
Publication of EP0487939B1 publication Critical patent/EP0487939B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B67B7/40—Devices for engaging tags, strips, or tongues for opening by tearing, e.g. slotted keys for opening sardine tins
    • 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
    • B67B7/38—Power-operated cutting devices

Definitions

  • the invention relates to a can opener of the type comprising, in a housing, an electric motor capable of driving in rotation, by means of at least one toothed wheel, a drive shaft of which one end projects. transversely to the front wall of the housing and carries a roller comprising a drive zone intended to come into contact with the crimping flange of a box, as well as a cutting wheel which is mounted idly around an axis disposed transversely to the drive shaft and a cutting sector of which protrudes from said front wall practically opposite said wheel drive zone and is intended to cut out said bead, said drive shaft being mounted both rotating and axially movable in the housing by means, on the one hand, of a bi-directional driving mechanism comprising a compression spring threaded on the drive shaft, and, on the other hand, of a device for reversing the direction of rotation of the drive shaft.
  • Document DE-U-90 03 115 describes such a can opener in which the bi-directional driving mechanism and the device for reversing the direction of rotation of the drive shaft cooperate with each other by means a set of gears adapted so that the caster can occupy, i.e. a rest position for which it allows the insertion or removal of the box, a working position for which it applies the bead of the box against said wheel.
  • the set of gears used for this can opener constitutes a complex mechanical assembly, which makes it difficult to produce the can opener.
  • the reversing device consists of an electric circuit which fulfills the function of reversing the direction of rotation of the motor and delaying the time elapsing between the command by the user shifting the engine into reverse and stopping the engine. The time delay is ensured by an electric circuit connected to the motor supply circuit.
  • the compression spring of the bi-directional driving mechanism has the function of causing a translation of the caster so either to introduce the bead of the box between the caster and the front wheel opening or to remove it after opening, or to keep the bead against the wheel during opening.
  • the object of the invention is to produce a can opener of the type mentioned above which is of simplified design.
  • the drive shaft is automatically driven in the opposite direction, thus causing the progressive tightening of the turns around the shaft and after a while the contact between the free end of the spring and the switch which cuts the power supply to the motor.
  • the compression spring does not show any wear since the tightening is modulated according to the direction of rotation.
  • FIG. 1 shows a schematic section of a can opener according to the invention
  • FIG. 2 represents a partial perspective view illustrating the compression spring of which the free end is in the stop position on the stop switch
  • Figure 3 is a schematic view of the compression spring in the stop position
  • FIG. 4 represents the electrical diagram of the reversing device according to the invention.
  • the can opener shown in Figure 1 comprises, in a housing 1, an electric motor (shown schematically at 2 in Figure 4) capable of driving in rotation, via at least one toothed wheel 3, a drive shaft 4, one end of which projects transversely from a front wall 5 of the housing 1 and carries a roller 7 comprising a drive zone 8 intended to come into contact with the upper internal lateral region of the crimping bead of the cover a box (not shown), as well as a cutting wheel 9 which is mounted idly around an axis 10 disposed transversely to the drive shaft 4 and of which a cutting sector 11 projects from said front wall 5 practically opposite of said drive zone 8 of the roller 7 and is intended to cut the external lateral region of said bead.
  • an electric motor shown schematically at 2 in Figure 4
  • a drive shaft 4 capable of driving in rotation, via at least one toothed wheel 3
  • a drive shaft 4 one end of which projects transversely from a front wall 5 of the housing 1 and carries a roller 7 comprising a
  • the drive shaft 4 is mounted both rotatably and axially movable in the housing 1 by means of a bidirectional drive mechanism which comprises a lug 12, integral with the drive shaft 4 and capable of moving along an inclined lumen 13 (shown in dashed lines) formed on the toothed wheel 3, as well as a compression coil spring 14 preferably made of steel threaded on the drive shaft 4 and supported by its ends, d on the one hand, on a rear wall 6 of the housing 1 and, on the other hand, on the toothed wheel 3.
  • a bidirectional drive mechanism which comprises a lug 12, integral with the drive shaft 4 and capable of moving along an inclined lumen 13 (shown in dashed lines) formed on the toothed wheel 3, as well as a compression coil spring 14 preferably made of steel threaded on the drive shaft 4 and supported by its ends, d on the one hand, on a rear wall 6 of the housing 1 and, on the other hand, on the toothed wheel 3.
  • washers 15, of the Belleville type are interposed between the toothed wheel 3 and the front wall 5 of the housing 1 in a manner known per se.
  • the lug 12 can drive the shaft 4 in rotation and in translation so that the drive shaft 4 can occupy, in the direction of rotation of said wheel 3, is an inactive position ( Figure 1) for which the caster 7 is moved away from the wheel 9 so as to allow the engagement or disengagement of the bead from the box, ie an active position (not shown) for which the caster 7 is brought closer to the wheel 9 so as to come into engagement with the bead and allow the cutting of the external lateral region of said bead.
  • Figure 1 for which the caster 7 is moved away from the wheel 9 so as to allow the engagement or disengagement of the bead from the box
  • an active position not shown
  • the compression spring 14 is chosen so as to exert an axial compression force large enough to oppose the rise of the lug 12 along the lumen 13 when the caster 7 rotates in a vacuum, thus maintaining the shaft drive 4 in its inactive position (Figure 1), and low enough to allow the lug 12 to rise along the lumen 13, when the drive area 8 of the roller 7 is in contact with the bead of a box, thus maintaining the drive shaft 4 in its active position.
  • the can opener further comprises a device for reversing the direction of rotation of the drive shaft 4 comprising two electrical switches 16, 17, a so-called switch of operation 16 and a so-called stop switch 17, which are mounted in the motor supply circuit so as to swap the connection connections of said motor 2 to reverse its direction of rotation, so that the motor 2 can take , via a control button 18 actuated by the user, two states, either a "forward" state for which the roller 7 applies the bead of the box against the wheel 9, or a "reverse” state "for which the roller 7 allows the insertion or removal of the box.
  • a device for reversing the direction of rotation of the drive shaft 4 comprising two electrical switches 16, 17, a so-called switch of operation 16 and a so-called stop switch 17, which are mounted in the motor supply circuit so as to swap the connection connections of said motor 2 to reverse its direction of rotation, so that the motor 2 can take , via a control button 18 actuated by the user, two states, either a "forward" state for which the roller 7 applies
  • the electric motor 2 shown diagrammatically in FIG. 4, is a collector series motor which is connected to terminals A and B of an AC voltage sector and whose armature windings can, for example, be swapped in a manner known per se, so as to allow the motor to rotate in both meaning.
  • the compression spring 14 comprises two parts, a cylindrical part 19 with contiguous turns whose internal surfaces 20 are frictionally mounted on the drive shaft 4 and a frustoconical part 21 with non-contiguous turns whose free end 22 is capable of come occupy two positions, either a rest position (shown in broken lines in Figures 2 and 3) for which it is in abutment against a finger 23 arranged on the rear wall 6 of the housing 1, or a working position (shown in solid lines in FIGS.
  • the spring 14 having a winding direction such that, when motor 2 occupies its "forward” state, the turns of the cylindrical part 19 of the spring 14 slip on the drive shaft 4 so that the free end 22 is brought into the rest position, while, when the m otor 2 occupies its "reverse” state, the turns of the cylindrical part 19 are clamped on the drive shaft 4 so as to drive the free end 22 of the frustoconical part 21 towards its working position.
  • the control button 18 can occupy two positions, a depressed position (shown in dashed lines in FIG.
  • Each switch 16, 17 can each occupy two states, a state called “low” (shown in solid lines in Figure 4) and a state called “high” (shown in broken lines in Figure 4).
  • the run switch 16 has been chosen to so that its "high” state corresponds to a non-actuation of its key while the stop switch 17 has been chosen so that its "high” state corresponds to the actuation of its key.
  • control button 18 In an initial step, the control button 18 is in the released position (solid lines in Figure 2), the on and off switches 16 are in their "high” state (broken lines in Figure 4); engine 2 is stopped. The spring is tightened on the drive shaft 4.
  • a "forward” step the user inserts the bead of the box between the wheel 9 and the roller 7 and then starts the device.
  • the button 18 then presses the key of the on switch 16, which changes to its "low” state (solid lines in FIG. 4) and maintains the stop switch 17 in its “high” state.
  • the lug 12 rises along the light 13 against the axial force exerted by the spring of compression 14, which brings the shaft 4 into translation in the active position, the lug 12 then drives the shaft 4 in rotation, thus allowing the cutting of the bead.
  • the spring clamped on the shaft by its cylindrical part 19 will be rotated by the shaft until the free end 22 abuts against the finger 23. At this stage, by friction, the movement will tend to open the turns of the spring, it will not oppose significant force to the rotation of the shaft.
  • the spring is driven by the shaft 4 due to the direction of winding chosen so that the cylindrical part 19 of the spring is tightened all the more strongly that one opposes the movement.
  • the free end of the frustoconical part is therefore rotated until it comes into contact with the button of the stop switch 17, which changes state and then occupies its "low” state.
  • the engine power is cut, we find our at the initial stage.
  • an angular distance between the finger 23 and the button of the stop switch 17 is chosen of approximately 45 °; the time elapsing between the reversal of the direction of rotation of the motor 2 and the interruption of the supply is approximately one second.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Glass Compositions (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Catching Or Destruction (AREA)
  • Table Devices Or Equipment (AREA)

Claims (1)

  1. Dosenöffner, der in einem Gehäuse (1) aufweist: einen Elektromotor (2), der mittels mindestens eines Zahnrades (3) eine Antriebswelle (4) antreiben kann, von der ein Ende quer von der Vorderwand (5) des Gehäuses (1) vorspringt und ein Reibrad (7) trägt, das eine Antriebszone (8) aufweist, die zur Berührung mit dem Falzwulst einer Dose bestimmt ist, sowie ein Schneidrad (9) aufweist, das frei um eine quer zur Antriebswelle (4) angeordnete Achse drehbar montiert ist, und von dem ein Schneidsektor (11) von der Vorderwand (5) praktisch gegenüber der Antriebszone (8) des Reibrades (7) vorsteht und mit dem abzuschneidenden Falzwulst in Berührung kommt, wobei die Antriebswelle (4) im Gehäuse (1) gleichzeitig drehbar und axial beweglich montiert ist mittels einerseits eines in zwei Richtungen wirkenden Antriebsmechanismus, der eine auf die Antriebswelle aufgezogene Druckfeder (14) aufweist, und andererseits einer Vorrichtung zur Umkehrung der Drehrichtung der Antriebswelle (4), dadurch gekennzeichnet, daß :
    - die Vorrichtung zur Umkehrung der Drehrichtung der Antriebswelle (4) zwei elektrische Schalter (16, 17) aufweist, nämlich einen sogenannten Einschalter (16) und einen sogenannten Ausschalter (17), die im Stromkreis des Motors (2) so eingeschaltet sind, daß sie die Anschlußverbindungen des Motors zur Umkehrung von dessen Drehsinn vertauschen, so daß der Motor (2) mittels eines vom Benutzer betätigten Betätigungsknopfes (18) zwei Zustände einnehmen kann, entweder einen "Vorwärtsgang", in welchem das Reibrad (7) den Falzwulst der Dose gegen das Schneidrad (9) andrückt, oder einen "Rückwärtsgang", in dem das Reibrad (7) das Einsetzen oder Herausnehmen der Dose ermöglicht.
    - die Druckfeder (14) des in zwei Richtungen wirkenden Antriebsmechanismus sich gleichzeitig an der Rückwand (6) des Gehäuses (1) und am Zahnrad (3) abstützt und zwei Teile (19,21) aufweist, nämlich einen zylindrischen Teil (19) mit nebeneinander liegenden Windungen, deren Innenflächen (20) reibend auf der Antriebswelle (4) montiert sind, und einem kegelstumpfförmigen Teil (21) mit nicht nebeneinander liegenden Windungen, von dem ein freies Ende (22) zwei Stellungen einnehmen kann, nämlich eine Ruhestellung, in welcher es gegen einen an der Rückwand (6) des Gehäuses (1) angeordneten Zapfen (23) anschlägt, oder eine Arbeitsstellung, in welcher es gegen den Ausschalter (17) drückt, so daß die Stromversorgung des Motors (2) unterbrochen wird, wobei die Feder (14) eine solche Wicklungsrichtung hat, daß wenn der Motor (2) sich im Zustand "Vorwärtsgang" befindet, die Windungen des zylindrischen Teils (19) der Federklammer (14) auf der Antriebswelle (4) so gleiten, daß das freie Ende (22) in die Ruhestellung gebracht wird, während wenn der Motor (2) seinen Zustand "Rückwärtsgang" einnimmt, die Windungen des zylindrischen Teils (19) auf der Antriebswelle (4) festgezogen werden, so daß das freie Ende (22) des kegelstumpfförmigen Teils (21) in seiner Arbeitsstellung bewegt wird.
EP91118756A 1990-11-29 1991-11-04 Dosenöffner Expired - Lifetime EP0487939B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91118756T ATE93814T1 (de) 1990-11-29 1991-11-04 Dosenoeffner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9014944 1990-11-29
FR9014944A FR2669912B1 (fr) 1990-11-29 1990-11-29 Ouvre-boites.

Publications (2)

Publication Number Publication Date
EP0487939A1 EP0487939A1 (de) 1992-06-03
EP0487939B1 true EP0487939B1 (de) 1993-09-01

Family

ID=9402725

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118756A Expired - Lifetime EP0487939B1 (de) 1990-11-29 1991-11-04 Dosenöffner

Country Status (13)

Country Link
US (1) US5170565A (de)
EP (1) EP0487939B1 (de)
KR (1) KR100215521B1 (de)
AT (1) ATE93814T1 (de)
AU (1) AU643336B2 (de)
BR (1) BR9105124A (de)
CA (1) CA2056764A1 (de)
DE (1) DE69100330T2 (de)
EG (1) EG18826A (de)
ES (1) ES2044671T3 (de)
FR (1) FR2669912B1 (de)
MX (1) MX9102278A (de)
PT (1) PT8873U (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5289638A (en) * 1993-02-19 1994-03-01 Jack Chase Safety can opener
US5802725A (en) * 1995-04-06 1998-09-08 Hydro-Thermal Corporation Portable metal drum opening apparatus
US6119352A (en) * 1998-06-09 2000-09-19 Adamczak; Gregory Mark Manual left or right hand can opener
US6189221B1 (en) 1998-12-31 2001-02-20 The Rival Company Can opener appliance having a side-cutting mechanism
US7574808B2 (en) * 2005-12-12 2009-08-18 Daka Research Inc. (Br. Virg. Isl Corp.) Mechanism for can opener
US7596874B2 (en) * 2005-12-12 2009-10-06 Daka Research Inc. Mechanism for can opener
US9221665B1 (en) * 2013-12-05 2015-12-29 Gregory Mark Adamczak Manual left or right hand can opener with tilt and rotating spherical joint
US20180265341A1 (en) * 2017-03-17 2018-09-20 Gregory Mark Adamczak Electric can opener with rotating spherical joint
CN112230357B (zh) * 2020-10-31 2022-10-21 贵州电网有限责任公司 一种便携式应急跳纤盘
CN112230358B (zh) * 2020-10-31 2022-10-21 贵州电网有限责任公司 一种模块化应急跳纤收纳装置
USD964132S1 (en) 2021-10-26 2022-09-20 Edlund Company, Llc Can opener drive gear

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2670449A (en) * 1952-10-04 1954-02-23 Thomas J Mcmahon Electric motor
US3689999A (en) * 1970-11-03 1972-09-12 Dynamics Corp America Can opener
US3781989A (en) * 1972-06-01 1974-01-01 Westinghouse Electric Corp Can opener
EP0280959B1 (de) * 1987-02-27 1991-07-31 Braun Aktiengesellschaft Dosenöffner, vorzugsweise mit elektrischem Antrieb
FR2645140B1 (fr) * 1989-03-28 1992-03-20 Moulinex Sa Ouvre-boites
FR2655323B1 (fr) * 1989-12-05 1992-07-24 Moulinex Sa Ouvre-boites.
FR2655636B1 (fr) * 1989-12-07 1992-07-24 Moulinex Sa Dispositif de commande d'un ouvre-boites.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Sempre caro mi fu quest'ermo colle *

Also Published As

Publication number Publication date
ES2044671T3 (es) 1994-01-01
CA2056764A1 (fr) 1992-05-30
PT8873U (pt) 1996-02-29
EP0487939A1 (de) 1992-06-03
FR2669912A1 (fr) 1992-06-05
MX9102278A (es) 1992-10-01
ATE93814T1 (de) 1993-09-15
KR100215521B1 (ko) 1999-08-16
AU643336B2 (en) 1993-11-11
DE69100330T2 (de) 1994-01-13
PT8873T (pt) 1994-01-31
US5170565A (en) 1992-12-15
EG18826A (en) 1994-03-30
FR2669912B1 (fr) 1993-07-30
DE69100330D1 (de) 1993-10-07
KR920009685A (ko) 1992-06-25
AU8797091A (en) 1992-06-04
BR9105124A (pt) 1992-07-21

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