EP0574214B1 - Ouvre-boîte - Google Patents

Ouvre-boîte Download PDF

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Publication number
EP0574214B1
EP0574214B1 EP19930304404 EP93304404A EP0574214B1 EP 0574214 B1 EP0574214 B1 EP 0574214B1 EP 19930304404 EP19930304404 EP 19930304404 EP 93304404 A EP93304404 A EP 93304404A EP 0574214 B1 EP0574214 B1 EP 0574214B1
Authority
EP
European Patent Office
Prior art keywords
opener
drive wheel
rim
wheel
bearing
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
EP19930304404
Other languages
German (de)
English (en)
Other versions
EP0574214A1 (fr
Inventor
Vincent Hong Wah Koo
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.)
Maxpat Trading and Marketing Far East Ltd
Original Assignee
Mike and Kremmel Ltd
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 Mike and Kremmel Ltd filed Critical Mike and Kremmel Ltd
Publication of EP0574214A1 publication Critical patent/EP0574214A1/fr
Application granted granted Critical
Publication of EP0574214B1 publication Critical patent/EP0574214B1/fr
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
    • B67B7/30—Hand-operated cutting devices
    • B67B7/34—Hand-operated cutting devices with rotatable cutters

Definitions

  • This invention relates to a hand-held can opener.
  • a can opener of the type in which the can is opened by cutting through an outer part of the rim joining the lid with the main body of the can has been proposed in several references, in particular US4734986, US4782594, US2255641 US Re27,504, US4251917, US3094776, US2196182, US5121546 and inventor's US Patent No. 5181322 derived from PCT Publication no. W090/05108.
  • the rim of the can is held between a drive wheel, which is rotatably connected to a handle for operation by a user, and a cutter wheel. Rotation of the drive wheel causes the drive wheel to move around the rim, with the cutter wheel cutting through the outer part of the rim thus separating the lid from the remainder of the can.
  • a further can opener in which a can rim is cut is described in DE-U-9107019.8.
  • the can is supported between an opposed pressure disc and entrainment disc, these being rotatably mounted.
  • the drive wheel be rotatably journalled within a metal sleeve supported by the body of the can opener, with the outer surface of the shaft and the inner surface of the sleeve mating at positions adjacent the ends of the sleeve so as to provide rotational support for the shaft and intermediate those positions a gap being provided between the outer surface of the shaft and the inner surface of the sleeve to avoid contact between the shaft and sleeve so as to reduce frictional forces upon rotation of the shaft relative to the sleeve.
  • the inventor found that this did not resolve the problem and the can opener was still difficult to operate.
  • a hand-held can opener having support means on which a cutter wheel engageable with the rim of a can and a drive wheel arranged to grip the rim on an opposed side to said cutter wheel are rotatably mounted, the drive wheel being connected to a handle for manual rotation to drive the drive wheel and cutter wheel around the can rim, and characterised in that the drive wheel is rotatably mounted on the support means by means of at least one needle roller bearing.
  • the inventor has found that the use of a rolling bearing provides a substantial reduction in operating difficulty for the can opener.
  • the needle roller bearing is of length at least equal to its diameter or may comprise two needle roller bearings contained in a single housing mounted in the body portion at spaced locations.
  • Figure 1 is a view similar to figure 12 of US 5181322 but illustrating an embodiment of the invention.
  • the can opener generally designated 10 comprises a support means formed from a pair of handles which are integrally formed with body portions 12 and 14 respectively.
  • the body portions 12, 14 are pivoted to one another about a spigot 13 which is integral with the body portion 12 and which extends into a corresponding opening 15 in the body portion 14.
  • a spindle 16 passes the through the spigot 13, the spindle being formed at one side with the drive wheel 18 which has on its outer face, serrations, teeth or the like to allow it to grip the inside of a rim 20 of a can 22 (fig 2) so that when rotated, the drive wheel 18 will drive the can opener 10 around the can 22 to be opened.
  • crank handle 19 is provided by means of which the wheel 18 may be manually rotated.
  • a washer 21 is provided between the handle 19 and the body portion 12.
  • the cutter wheel 30 Connected to the body portion 14 is an upstanding shaft 29 on which a cutter wheel 30 is idly and rotatably mounted.
  • the cutter wheel 30 comprises a circular cutting edge 32 and a integral circular flange 34.
  • the outer cylindrical face 36 of this is slightly larger diameter than the cutting edge 32 so that the face 36 can bear against an upright sidewall 38 of the can 22.
  • the cutter wheel 30 is held in place on the shaft 29 by an endcap 40 riveted or screwed to the shaft 29. Between the endcap 40 and the wheel 30 is a washer 42 of a resilient material. Washers 41 are provided on either side of the cutter wheel 30.
  • the axis 40 of the spindle 16 is offset from the axis 42 of the spigot 13.
  • the drive wheel 18 is moved away from cutter wheel 30 and so can be placed over the rim of the can to be opened and conversely when the handles are brought together and grasp in the hand of a user, the drive wheel 18 is moved in closer to the cutter wheel 30 and engages the rim of the can guided by flange 34 to the position as shown in figure 2 in which the cutter edge engages the can rim which is held in the nip between cutter wheel 30 and drive wheel 18.
  • Rotation of the handle 19 will cause the drive wheel 18 to grip the inside of the can rim thus forcing the cutter wheel around the rim, cutting the rim open as it goes as described in US Patent 5181322 (W090/05108).
  • a rolling bearing 50 is provided between the spindle 16 and body portion 12, the bearing 50 having a housing 52 and a plurality of axially arranged needle rollers 54 running the length of the casing 52, to provide a substantially frictionless bearing arrangement.
  • the roller bearing has an axial length at least equal to its radial width and the bearing 50 is of an axial length substantially the same as the width of the region of the body portion 12 in which it is disposed, so as to provide a substantial degree of support.
  • the housing 52 accommodates first and second roller bearings 56, 58 disposed at opposed ends of the casing 52, with a packing member 60 being disposed between the bearings 56, 58.
  • the inventor has found that the use of the needle roller bearing 50 substantially improves the operability of the device.

Landscapes

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

Claims (7)

  1. Ouvre-boîtes manuel (10) du type dans lequel une boîte est ouverte par découpe d'une partie externe du rebord raccordant le couvercle au corps de la boîte, l'ouvre-boîtes ayant un dispositif de support (12, 14) sur lequel une roue (30) d'organe de coupe destinée à être au contact du rebord de la boîte et une roue d'entraînement (18) destinée à serrer le rebord du côté opposé à la roue (30) de l'organe de coupe sont montées afin qu'elles puissent tourner, la roue d'entraînement (18) étant raccordée à une poignée (19) destinée à assurer la rotation manuelle qui entraîne la roue d'entraînement (18) et la roue (30) d'organe de coupe autour du rebord de la boîte, caractérisé en ce que la roue d'entraînement (18) est montée afin qu'elle puisse tourner sur le dispositif de support par au moins un roulement (50) à aiguilles.
  2. Ouvre-boîtes selon la revendication 1, dans lequel la roue d'entraînement (18) est montée par rapport au dispositif de support à l'aide d'un premier (56) et d'un second (48) roulement à aiguilles.
  3. Ouvre-boîtes selon la revendication 2, caractérisé en ce que le premier et le second roulement (56, 58) à aiguilles sont logés dans un même boîtier (52).
  4. Ouvre-boîtes selon la revendication 2 ou 3, dans lequel un séparateur (60) est disposé entre le premier et le second roulement (56, 58) à aiguilles.
  5. Ouvre-boîtes selon l'une quelconque des revendications précédentes, dans lequel le roulement (50) a une longueur axiale au moins égale à son diamètre.
  6. Ouvre-boîtes selon l'une quelconque des revendications précédentes, dans lequel le dispositif de support comporte deux poignées (12, 14) formées afin qu'elles soient solidaires de parties de corps articulées l'une sur l'autre autour d'un organe en saillie (13), la roue d'entraînement (18) ayant une broche (16) passant dans la partie en saillie (13) et le roulement (50) étant placé entre la partie en saillie (13) et la broche (16), la partie en saillie (13) ayant une partie de montage sur laquelle est disposée le roulement (50), la partie de montage délimitant une cavité disposée pratiquement sur la largeur d'une partie de corps et le roulement étant placé dans cette cavité.
  7. Ouvre-boîtes selon la revendication 6, dans lequel la roue (30) d'organe de coupe est montée sur un arbre (29) raccordé à l'une des parties de corps (14), l'arbre (29) ayant un capuchon (40) d'extrémité et une rondelle élastique (42) placée entre le capuchon d'extrémité et la roue (30) de l'organe de coupe.
EP19930304404 1992-06-09 1993-06-07 Ouvre-boîte Expired - Lifetime EP0574214B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9212170 1992-06-09
GB929212170A GB9212170D0 (en) 1992-06-09 1992-06-09 A can opener

Publications (2)

Publication Number Publication Date
EP0574214A1 EP0574214A1 (fr) 1993-12-15
EP0574214B1 true EP0574214B1 (fr) 1996-05-01

Family

ID=10716764

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930304404 Expired - Lifetime EP0574214B1 (fr) 1992-06-09 1993-06-07 Ouvre-boîte

Country Status (7)

Country Link
EP (1) EP0574214B1 (fr)
CN (1) CN1050108C (fr)
AU (1) AU670277B2 (fr)
CA (1) CA2097893A1 (fr)
DE (1) DE69302436T2 (fr)
GB (1) GB9212170D0 (fr)
HK (1) HK1008007A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT239415Y1 (it) * 1995-07-21 2001-02-26 Barbara Gisolo Apriscatole migliorato con lama a disco
GB2431389A (en) * 2005-10-12 2007-04-25 Daka Res Inc Mechanism for a can opener
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
CN103058110A (zh) * 2013-01-22 2013-04-24 胡云龙 一种安全罐头刀
CN104057416A (zh) * 2014-06-26 2014-09-24 国家电网公司 一种螺栓快速装卸装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059333A (en) * 1961-09-27 1962-10-23 John C Hockery Right and left-hand can opener
FR2064553A5 (fr) * 1969-09-25 1971-07-23 Feuma Veb
EP0575016B1 (fr) * 1988-11-07 1995-04-12 Ibl Products Company Ltd Ouvre-boîtes
US5022159A (en) * 1989-11-29 1991-06-11 Chef'n Corporation Hand-held can opener
DE9107019U1 (de) * 1991-06-05 1991-07-25 Kuhnke, Manfred, Ing.(grad.), 1000 Berlin Vorrichtung zum Entfernen des Deckelfalzes von Metalldosen, insbesondere Getränkedosen

Also Published As

Publication number Publication date
GB9212170D0 (en) 1992-07-22
AU3989293A (en) 1993-12-16
HK1008007A1 (en) 1999-04-30
EP0574214A1 (fr) 1993-12-15
DE69302436D1 (de) 1996-06-05
CN1050108C (zh) 2000-03-08
DE69302436T2 (de) 1996-09-26
CA2097893A1 (fr) 1993-12-10
AU670277B2 (en) 1996-07-11
CN1081996A (zh) 1994-02-16

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