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EP0487939A1 - Dosenöffner - Google Patents

Dosenöffner Download PDF

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Publication number
EP0487939A1
EP0487939A1 EP91118756A EP91118756A EP0487939A1 EP 0487939 A1 EP0487939 A1 EP 0487939A1 EP 91118756 A EP91118756 A EP 91118756A EP 91118756 A EP91118756 A EP 91118756A EP 0487939 A1 EP0487939 A1 EP 0487939A1
Authority
EP
European Patent Office
Prior art keywords
motor
drive shaft
housing
state
drive
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
EP91118756A
Other languages
English (en)
French (fr)
Other versions
EP0487939B1 (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 can openers 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 one of the walls of the housing and carries a caster 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 of which a cutting sector protrudes from said wall practically opposite said drive zone of the caster and is intended to come and cut said bead.
  • the invention relates, more precisely, can openers in which said drive shaft is mounted both rotatable and axially movable in the housing by means, on the one hand, of a bi-directional driving mechanism comprising a spring compression threaded on the drive shaft and bearing both on a wall of the housing and on the toothed wheel, and, on the other hand, a device for reversing the direction of rotation of the shaft d drive comprising two electrical switches, a so-called start switch and a so-called stop switch, which are mounted in the motor supply circuit so as to swap the connection connections of said motor to reverse its direction of rotation, so that the motor can take, via a control button actuated by the user, two states, ie a "forward" state for which the wheel applies the bead of the box against the wheel , or a "reverse” state for which the wheel allows the insertion or removal of the box.
  • a bi-directional driving mechanism comprising a spring compression threaded on the drive shaft and bearing both on a wall of the housing
  • Such a can opener has been described for example in French patent applications No. 8,916,043 and No. 8,918,203 filed on 05 12 1989 and 07 12 1989 respectively by plaintiff. It includes a bi-directional driving mechanism, the compression spring of which has the function of causing the caster to translate so as either to introduce the bead of the box between the caster and the wheel before opening or to remove it after opening, or to maintain the bead against the wheel during opening.
  • the can opener includes a reversing device constituted by an electric circuit which fulfills the function of reversing the direction of rotation of the motor and delaying the duration heard 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 invention aims to simplify the reversing device.
  • the compression spring has two parts, a cylindrical part with contiguous turns whose internal surfaces are mounted in friction on the drive shaft and a frustoconical part with non-contiguous turns whose free end is likely to come occupy two positions, either a rest position for which it is in abutment against a finger arranged on a wall of the housing, or a working position for which it presses the stop switch so as to cut off the power to the motor, the spring having a winding direction such that, when the motor occupies its "forward” state, the turns of the cylindrical part of the spring spin on the drive shaft so that the free end is brought into the rest position, while, when the motor occupies its "reverse” state, the turns of the cylindrical part are clamped on the drive shaft. so as to drive the free end of the frusto-conical part towards its working position.
  • the compression spring fulfills two functions: a function of moving the wheel forwards and a timing function defined by the angular distance between the finger and the stop switch.
  • the timing is performed by a mechanical device, the electrical circuit is therefore simplified, which reduces the cost of the device.
  • 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 one of the walls 5, 6, 6 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 bead of crimping of the cover of 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 It projects from said wall 5 practically opposite said drive zone 8 of the caster 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 one of the walls 5, 6, 6 of the housing 1 and carries a roller
  • 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 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 wall 6 of the housing 1 and, on the other hand, on the toothed wheel 3.
  • 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 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 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
  • 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 has 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 free 22 is capable of coming to 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 wall 6 of the housing 1, or a position of work (shown in solid lines in FIGS.
  • the spring 14 having a winding direction such that, when the 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, lo rsque the motor 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 frusto-conical 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 keeps 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)
  • Table Devices Or Equipment (AREA)
  • Catching Or Destruction (AREA)
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
FR9014944A FR2669912B1 (fr) 1990-11-29 1990-11-29 Ouvre-boites.
FR9014944 1990-11-29

Publications (2)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112230357A (zh) * 2020-10-31 2021-01-15 贵州电网有限责任公司 一种便携式应急跳纤盘
CN112230358A (zh) * 2020-10-31 2021-01-15 贵州电网有限责任公司 一种模块化应急跳纤收纳装置

Families Citing this family (9)

* 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
USD964132S1 (en) 2021-10-26 2022-09-20 Edlund Company, Llc Can opener drive gear

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365736A1 (de) * 1972-06-30 1976-02-05 Etud Sa Dosenoeffner zum automatischen oeffnen von metallischen dosen
DE9003115U1 (de) * 1989-03-28 1990-05-17 Moulinex S.A., Bagnolet, Seine Dosenöffner
EP0431516A1 (de) * 1989-12-07 1991-06-12 Moulinex Steuervorrichtung für Dosenöffner
EP0431517A1 (de) * 1989-12-05 1991-06-12 Moulinex Dosenöffner

Family Cites Families (4)

* 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
ES2023225B3 (es) * 1987-02-27 1992-01-01 Braun Ag Abridor de latas, principalmente con mecanismo electrico

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2365736A1 (de) * 1972-06-30 1976-02-05 Etud Sa Dosenoeffner zum automatischen oeffnen von metallischen dosen
DE9003115U1 (de) * 1989-03-28 1990-05-17 Moulinex S.A., Bagnolet, Seine Dosenöffner
EP0431517A1 (de) * 1989-12-05 1991-06-12 Moulinex Dosenöffner
EP0431516A1 (de) * 1989-12-07 1991-06-12 Moulinex Steuervorrichtung für Dosenöffner

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112230357A (zh) * 2020-10-31 2021-01-15 贵州电网有限责任公司 一种便携式应急跳纤盘
CN112230358A (zh) * 2020-10-31 2021-01-15 贵州电网有限责任公司 一种模块化应急跳纤收纳装置
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

Also Published As

Publication number Publication date
EP0487939B1 (de) 1993-09-01
AU643336B2 (en) 1993-11-11
EG18826A (en) 1994-03-30
CA2056764A1 (fr) 1992-05-30
US5170565A (en) 1992-12-15
FR2669912B1 (fr) 1993-07-30
ATE93814T1 (de) 1993-09-15
DE69100330T2 (de) 1994-01-13
PT8873T (pt) 1994-01-31
PT8873U (pt) 1996-02-29
BR9105124A (pt) 1992-07-21
MX9102278A (es) 1992-10-01
ES2044671T3 (es) 1994-01-01
KR100215521B1 (ko) 1999-08-16
FR2669912A1 (fr) 1992-06-05
DE69100330D1 (de) 1993-10-07
KR920009685A (ko) 1992-06-25
AU8797091A (en) 1992-06-04

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