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WO2000017088A1 - Ouvre-boite - Google Patents

Ouvre-boite Download PDF

Info

Publication number
WO2000017088A1
WO2000017088A1 PCT/GB1999/002946 GB9902946W WO0017088A1 WO 2000017088 A1 WO2000017088 A1 WO 2000017088A1 GB 9902946 W GB9902946 W GB 9902946W WO 0017088 A1 WO0017088 A1 WO 0017088A1
Authority
WO
WIPO (PCT)
Prior art keywords
release
opener
opener according
mounting plate
wheel
Prior art date
Application number
PCT/GB1999/002946
Other languages
English (en)
Inventor
Terence Pereira
Original Assignee
William Levene Limited
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 William Levene Limited filed Critical William Levene Limited
Priority to EP99947595A priority Critical patent/EP1115645A1/fr
Priority to AU60984/99A priority patent/AU6098499A/en
Publication of WO2000017088A1 publication Critical patent/WO2000017088A1/fr

Links

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
    • B67B7/30—Hand-operated cutting devices
    • B67B7/34—Hand-operated cutting devices with rotatable cutters

Definitions

  • the invention relates to a can opener of the type which operates to separate an end wall or lid of the can by cutting from the outside under the upstanding rim formed at the end of the can and comprising overlapped portions of the perimeter of the end wall and the side wall of the can.
  • a hand held can opener comprising a body, a traction wheel mounted in the body, a cutting wheel moveable towards and away from the traction wheel, the cutting wheel being carried by a mounting plate, and lever means for moving the mounting plate to cause the cutter wheel to move towards and away from the traction wheel, wherein there is included a release mechanism operable to cause the lever means to move the cutter wheel away from the traction wheel.
  • Fig 1 is a plan view of one embodiment of the can opener from the underside, some parts of the opener having been removed to better show the mechanism within;
  • Fig 2 is a longitudinal sectional view of the can opener of Fig 1 taken on the line II - II;
  • Fig 3 is a plan view of an abutment plate
  • Fig 4 is a plan view of a cutter mounting plate
  • Fig 5 is a plan view of a release lever
  • Fig 6 is a plan view of a grip arm
  • Fig 7 is a plan view of a gripping mechanism in the closed position
  • Fig 8 is a plan view of a gripping mechanism in the open position
  • Fig 9 is an underneath plan view, partly in section, of another embodiment of the invention, being in the "open” position;
  • Fig 10 is an underneath plan view, partly in section, of the embodiment of Fig 9, being in the "closed” position;
  • Figs 11 and 12 are underneath plan views, partly in section, of alternative designs of the release button of Fig 9;
  • Fig 13 is a cross-sectional view in one plane of the grip arm of Fig 9.
  • Fig 14 is a cross-sectional view in another plane of the grip arm of Fig 9.
  • a hand held can opener of the invention comprises a moulding defining a head portion 1A and a handle portion IB.
  • the handle portion comprises a housing 1 made up an upper body shell IE and a lower body shell IF each moulded of plastics and being held together by snap fitting, by screws or other suitable means, not shown.
  • the side walls of the shells are shaped to provide side slots 1C, ID, in the handle portion.
  • a rotatable handle 2 is mounted in the head portion by a spindle 3 which passes through a hole 4 formed in a boss 5 in the head portion.
  • An abutment plate 6 having one circular hole 7 (Fig 3) is mounted against the lower surface of the upper body shell IE of the head portion 1 and the hole 7 is aligned with the hole 4, the spindle 3 passing through the abutment plate 6.
  • the lower end of the spindle 3 is fixed to a traction wheel 9 so that when the handle 2 is rotated spindle 3 and thus traction wheel 9 also rotate.
  • the traction wheel comprises a disc 10 having peripheral teeth 11.
  • a cutting wheel 20 is mounted in the opener for reciprocal movement towards and away from the traction wheel 9.
  • the cutting wheel 20 is mounted by a pin 21 to one corner of a triangular cutter mounting plate 22 (Fig 4) .
  • the abutment plate has an enclosed arcuate slot 23 and the pin 21 protrudes therethrough, the cutter mounting plate 22 being present between the overlying ceiling of the upper handle portion IE and the abutment plate 6.
  • the cutter mounting plate 22 has holes 21, 24 and 28 located near respective ones of its three corners. Extending through hole 24 there is a pin 25 fixed to the ceiling of the handle portion IE so that the cutter mounting plate 22 moves pivotally about the pin 25, the pin 21 then travelling an arcuate path in the slot 23.
  • a coil spring 26 (Figs 7 and 8) is connected between a fixed point 27 adjacent the pin 25 and the far corner 28 of the plate 22 so that pivotal movement of the plate towards the traction wheel stretches the spring 26.
  • the spring 26 is extended or contracted by a lever mechanism 30.
  • This is made up of a release lever 31 (Fig 5) and a grip arm 32 (Fig 6) .
  • the release lever 31 has one longer leg 33 and one shorter leg 34, the two legs being at an angle so that the lever is of general C shape.
  • the outer end of the longer leg 33 is pivotally mounted on a pin 36 which is fixed to housing IB, passing through a hole 37.
  • a hole 38 is present at the union of the legs.
  • the arm 32 has two spaced apart holes 39,40 near its ends, and the lever is superimposed on the arm by a pin 41 passing through aligned holes 38,39.
  • the arm 32 is superimposed on the cutter mounting plate 22 by a pin 29 passing through aligned holes 28,40.
  • the shorter leg 34 of the release lever 31 is shaped and dimensioned to present a release button 42 projecting slightly out of one side of the handle portion IB through slot ID.
  • the arm 32 is shaped to move in and out of slot 1C in the other side of the handle portion IB. It will be seen that pins 29, 41 and 36 lie in an over-centre line in the closed position (Fig 7) .
  • the cutting wheel 20 has a cutting edge 50.
  • a projection 51 depends from the abutment plate 6.
  • the can opener is held in one hand and moved to a can (not shown) , and applied to the top until the projection 51 contacts the lid and the traction wheel 9 contacts the inside of the rim.
  • the user then presses the grip arm 32 inwards so that it pivots about pin 29 and causes the release lever to pivot about pin 36 until the end of the release button 42 protrudes through slot ID to the outside of the main body 1.
  • cutter mounting plate 22 pivots about pin 25 and moves the cutting edge 50 of the cutting wheel 20 towards the traction wheel 9, thereby firmly gripping the rim of the can between the traction wheel 9 and the cutting wheel 20.
  • the spring 26 ensures that this grip is maintained without a continual force having to be applied by the user to the grip arm 32.
  • the gripping mechanism is dimensioned so that the centre of pin 41 lies a short distance off-centre of a straight line between the centres of pins 29 and 36.
  • the serrated wheel rotates the rim joint of the can is drawn through the narrow gap between the traction wheel 9 and the cutting edge of the cutting wheel 20, so that the side wall of the can is progressively cut along a line parallel to and just below the rim joint by the cutting edge of the cutting wheel 20.
  • the lid separates from the bottom of the can, and is held by the can opener.
  • the lid then falls away e.g. into a waste bin.
  • the grip arm 32 has a projection 52 which lies outside the body shell when the opener is in the 'closed' position.
  • Projection 52 lies forward (i.e. towards the head end of the opener) of the pin 29 so that pressing on the projection 52 initiates movement of the lever mechanism to the open position.
  • projection 52 and button 42 are alternative means of initiating the open position. They can be used together, i.e. they can be squeezed together if desired. Also, the design of the opener can be changed to eliminate one or the other if desired, i.e. button 42 could be removed.
  • Figs 9 to 14 there is a generally triangular cutter mounting plate 122 as before but the spring 26 is replaced by a coiled torsion spring 126.
  • the spring 126 is entrained round a pin 125 and has two ends 126A and 126B extending out from the coil and between which an outward torsion force exists. End 126A is connected to the plate 122 and the end 126B pushes against an inner wall surface of the housing head portion 101A.
  • the lever mechanism comprises a release lever 131 and a grip arm 132 and the release lever 131 has one longer leg 133 and one shorter leg 134, the two legs being at an angle so that the lever is of general L shape.
  • the outer end of the longer leg 133 is pivotally mounted on a pin 136 which is fixed to housing 101B.
  • a hole 138 is present at the union of the legs.
  • the grip arm 132 is of generally U shaped cross-section to accommodate the release lever 131 within the hollow formed between the two sides of the grip arm 132 as best seen in Fig 13 and 14.
  • the grip arm 132 has two spaced apart holes 139 and 140 and the release lever 131 is positioned within the grip arm 132 by means of a pin 141 passing through aligned holes 138 and 139.
  • the grip arm 132 is mounted on the cutter mounting plate 122 by a pin 129 passing through aligned holes 128 and 140 such as to embrace both sides of the cutter mounting plate 122.
  • the shorter leg 134 of the release lever 131 is shaped and dimensioned to engage a release button 142 projecting out of one side of the handle portion 101B through slot 101D.
  • the release button 142 pivots on a pin 146 and is urged outwardly by resilient arm 143 which acts against pin 144.
  • the arm 132 is shaped to move in and out of slot 101C in the other side of the handle portion 101B. It will be seen that pins 129, 141 and 136 lie in an over-centre line in the closed position (Fig 10) .
  • the user presses the grip arm 132 inwards so that it pivots about pin 129 and causes the release lever to pivot about pin 136 until the end of the shorter end 134 of the release lever 131 contacts the release button 142 moving the release button 142 through slot 101D to the outside of the main body 101.
  • cutter mounting plate 122 pivots about pin 125 and moves the cutting edge of the cutting wheel towards the traction wheel, thereby firmly gripping the rim of the can between the traction wheel and the cutting wheel.
  • the torsion spring 126 ensures that this grip is maintained without a continual force having to be applied by the user to the grip arm 132.
  • the gripping mechanism is dimensioned so that the centre of pin 141 lies a short distance off-centre of a straight line between the centres of pins 129 and 136 as seen in Fig 10.
  • the serrated wheel rotates the rim joint of the can is drawn through the narrow gap between the traction wheel and the cutting edge of the cutting wheel, so that the side wall of the can is progressively cut along a line parallel to and just below the rim joint by the cutting edge of the cutting wheel.
  • the lid separates from the bottom of the can, and is held by the can opener.
  • the lid then falls away e.g. into a waste bin.
  • the grip arm 132 has a projection 152 which lies outside the body shell when the opener is in the 'closed' position (Fig 10).
  • Projection 152 lies forward (i.e. towards the head end of the opener) of the pin 129 so that pressing on the projection 152 initiates movement of the lever mechanism to the open position.
  • projection 152 and button 142 are alternative means of initiating the open position. They can be used together, i.e. they can be squeezed together if desired. Also, the design of the opener can be changed to eliminate one or the other if desired.
  • Figs 11 and 12 illustrate alternative designs of release button.
  • the release button 152 moves in a sliding fashion by virtue of pegs 154,155 sliding within slots 156,157 formed in the release button 152.
  • a resilient arm 158 which engages a peg 159 urges the release button 152 outwardly

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Opening Bottles Or Cans (AREA)

Abstract

Cette invention concerne un ouvre-boîte conçu pour saisir le bord d'une boîte de conserve pendant la coupe dudit bord. Cet ouvre-boîte possède un mécanisme grâce auquel il n'est pas nécessaire d'appliquer une pression constante pour maintenir le bord prisonnier pendant la coupe. Il comporte également un mécanisme de libération qui permet d'éjecter le couvercle une fois celui-ci détaché du corps de la boîte.
PCT/GB1999/002946 1998-09-22 1999-09-22 Ouvre-boite WO2000017088A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99947595A EP1115645A1 (fr) 1998-09-22 1999-09-22 Ouvre-boite
AU60984/99A AU6098499A (en) 1998-09-22 1999-09-22 Can opener

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9820649.3A GB9820649D0 (en) 1998-09-22 1998-09-22 Can opener
GB9820649.3 1998-09-22

Publications (1)

Publication Number Publication Date
WO2000017088A1 true WO2000017088A1 (fr) 2000-03-30

Family

ID=10839281

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/002946 WO2000017088A1 (fr) 1998-09-22 1999-09-22 Ouvre-boite

Country Status (5)

Country Link
EP (1) EP1115645A1 (fr)
CN (1) CN1221465C (fr)
AU (1) AU6098499A (fr)
GB (1) GB9820649D0 (fr)
WO (1) WO2000017088A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3943442A1 (fr) * 2020-07-20 2022-01-26 Kuhn Rikon AG Ouvre-boîte

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108966800B (zh) * 2017-07-12 2021-06-15 滁州职业技术学院 一种割草机
LT6695B (lt) 2019-07-02 2020-01-27 Pinghu Huadeng Cup Industry Co., Ltd. Skardinės atidarytuvas su automatiniu dydžio reguliavimu

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113665A1 (de) * 1981-04-04 1982-10-14 Leifheit International Günter Leifheit GmbH, 5408 Nassau Zangendosenoeffner mit zuhalte- einrichtung
EP0202790A1 (fr) * 1985-05-17 1986-11-26 Mike & Kremmel Limited Ouvre-boîtes
WO1992002445A1 (fr) * 1990-08-03 1992-02-20 William Levene Limited Ouvre-boite
GB2265598A (en) * 1992-03-27 1993-10-06 Forexim Can-opener
EP0855363A1 (fr) * 1994-01-20 1998-07-29 William Levene Limited Ouvre-boítes
US5794353A (en) * 1997-05-28 1998-08-18 Lin; Zi-Xiu Can opener

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113665A1 (de) * 1981-04-04 1982-10-14 Leifheit International Günter Leifheit GmbH, 5408 Nassau Zangendosenoeffner mit zuhalte- einrichtung
EP0202790A1 (fr) * 1985-05-17 1986-11-26 Mike & Kremmel Limited Ouvre-boîtes
WO1992002445A1 (fr) * 1990-08-03 1992-02-20 William Levene Limited Ouvre-boite
GB2265598A (en) * 1992-03-27 1993-10-06 Forexim Can-opener
EP0855363A1 (fr) * 1994-01-20 1998-07-29 William Levene Limited Ouvre-boítes
US5794353A (en) * 1997-05-28 1998-08-18 Lin; Zi-Xiu Can opener

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3943442A1 (fr) * 2020-07-20 2022-01-26 Kuhn Rikon AG Ouvre-boîte
US11485622B2 (en) 2020-07-20 2022-11-01 Kuhn Rikon Ag Can opener

Also Published As

Publication number Publication date
CN1221465C (zh) 2005-10-05
AU6098499A (en) 2000-04-10
EP1115645A1 (fr) 2001-07-18
GB9820649D0 (en) 1998-11-18
CN1319072A (zh) 2001-10-24

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