US3673682A - Can opener device - Google Patents

Can opener device Download PDF

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Publication number
US3673682A
US3673682A US851635A US3673682DA US3673682A US 3673682 A US3673682 A US 3673682A US 851635 A US851635 A US 851635A US 3673682D A US3673682D A US 3673682DA US 3673682 A US3673682 A US 3673682A
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US
United States
Prior art keywords
shaft
piece
feeder wheel
cutter
housing frame
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
US851635A
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English (en)
Inventor
Osamu Yamamoto
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.)
Aichi Electric Co Ltd
Aichi Denki Seisakusho KK
Original Assignee
Aichi Electric Co 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 Aichi Electric Co Ltd filed Critical Aichi Electric Co Ltd
Application granted granted Critical
Publication of US3673682A publication Critical patent/US3673682A/en
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
    • B67B7/38—Power-operated cutting devices

Definitions

  • ABSTRACT A can opener comprising a body frame, a feeder wheel, a 30 Funk], Appliufim priority movable frame pivotally supported on the body frame by a detachable shaft inserted in a bearing member carried by said Aplll 23, Japan frame a cutter rotatably supported aid movable frame and a holding mechanism for keeping said shaft in the R inserted position, the shaft being pushed out toward the front [51] [131. CI ..B67b 7/38 of said body frame by operating said holding mechanism [58] FreldofSearch ..30/4, 6.4, 8, 8.5, 9 thereby making the cutter together with said movable frame easily removable. [56] References Cited 3 Claims, 10 Drawing Figures UNITED STATES PATENTS 3,348,305 l0/l967 Bielak ..30/4
  • the present invention relates generally to a can opener and more particularly to the improvement of the can opener which can open a can at its one end surface by rotating the can in a position where said surface of the can is cut into by a cutter near a rim of the can.
  • An object of the present invention is to provide a can opener in which a cutter and a movable frame carrying it are separated from a body frame of the can opener without touching the cutter directly and a new or a cleaned cutter can be adapted.
  • Another object of the present invention is to provide a can opener in which a cutter and its movable frame can be skillfully adapted to or removed from a body frame of a can opener.
  • FIG. I is a front view of a can opener according to the present invention.
  • FIG. 2 is a side view of the can opener partly broken away to show a section taken along the line A-A in FIG. 3,
  • FIG. 3 is a rear view of the can opener with the rear wall being removed
  • FIG. 4 is an enlarged rear view of a partial cross section of the holding mechanism shown in FIG. 3,
  • FIG. 5 is a side view of a partial cross section taken along the line B-B in FIG. 4,
  • FIGS. 6 and 8 are rear views of partial cross section of embodiments similar to but other than that shown in FIG. 4,
  • FIGS.- 7 and 9 areviews of partial cross sections taken along the lines C-C and D-D in FIGS. 6 and 8 respectively and FIG. 10 is an electrical wiring diagram.
  • a housing frame 10 is composed of a base member 11, side walls 12, a front wall 13, a top plate 14 and a rear wall (not shOwn), forming a hollow chamber 15.
  • a bearing member 16 carried by the front wall 13 there is rotatably mounted a shaft 17 of a can feeding device F which is described below and a toothed feeder wheel 18 is screwed to the outer end of said shaft while .
  • a large gear 19 is fixed to the inner end of said shaft.
  • the latter gear is connected mechanically to an armature shaft of an electric motor M through a gear 20 carried by the shaft 21 and so on and is driven to rotate the feeder wheel 18 in a direction (shown by the arrow 22) when the electric motor M is connected to a source of electrical current.
  • a movable frame 23 is pivotally supported by and fixedly connected to a shaft 24 so as to rotate in a plane parallel to the front wall 13 and the free end portion of said movable frame 23 is provided with an integral handle 25 formed to extend over part of the top plate 14.
  • Said shaft 24 is rotatably and removably mounted in a bearing member 26 extending through the body frame 10 with the inner end portion 27 of the shaft 24 being shaped in the form of a cone and the intennediate portion 28 being provided with a groove 29.
  • an engage piece 30 with an opening 32 which is situated on the prolonged axis of the shafi 24 in the case of insertion of said shaft 24, is provided so that the piece may reciprocate in a direction crossing said prolonged axis and around the upper portion of said piece is provided a stopper member 31 which prevents said opening 32 from deviating largely from the axis of said shaft 24 by contacting with said stopper member 31, the upper most position of the piece being thus limited.
  • This engage piece 30 is usually biased towards a push button 33 which is mounted on the upper end of said piece 30, by means of a spiral spring 34 which is compressingly inserted between a spring holder 35 extending from said piece and a spring seat 36 extending from the side of the body frame l0and when the shaft 24 is to be inserted into the opening 32, the cone 27 of i the shaft 24 is forced in said opening 32 to lower the engage tion of the cone 27 shown in FIG. 5, and the arrangement shown in FIG. 5 is attained. In this case, of course, the engage piece 30 enters the groove 29, preventing the shaft 24 from escaping freely in the axial direction.
  • the engaged edge 30 of the engage piece 30 is disengaged from the groove 29 by pushing down the button 33 and at the same time the movable frame 23 and the shaft 24 are pushed out in the direction of the arrow 22' by the biasing force of the spring plate 37 acting towards the shaft 24 with the shaft 24 being in turn caught in a situation where the movable frame 23 is easily removed.
  • guide members 38 and 38' extending through the front wall 13 are both for preventing the undesirable movement of a can in during the opening by tightly contacting the top of the can with said guide members.
  • the member 38 is :fonned on the axis of the movable frame 23 integrally therewith and the member 38' is overlappingly fixed on the rear surface of the movable frame 23 and both members extend farther than the feeder wheel 18 as shown in FIG. 5.
  • a projection 39 which is carried by the front wall 13 and extends outwards is for receiving the body of a can somewhat obliquely and is extending under the feeder wheel slightly farther than the feeder wheel 18 thereunder.
  • a circular cutter 40 having edges on its periphery is rotatably supported around a shaft 41 which extends in the oblique downward direction from the movable frame 23 and is usually disposed in the forward position by means of a compression spring 42 which is inserted between the cutter 40 and the root portion of the shaft 41.
  • the movement of the cutter 40 from shaft 41 is prevented by screwing a bolt with a large head 43 into the shaft 41.
  • a bifurcated arm 44 of which one branch 44' is removably secured to the movable frame 23 by a mounting pin 45, is for holding a magnet piece 46 to attract the lid cut ofi from a can allowing said magnet piece to move up and down and the magnet piece 46 is secured at the lower end of a suspender 47 which is inserted in an opening bored at the end of said arm 44.
  • 48 is a compression spring and 49 is a stopping member.
  • a switching button 50 which is mounted on the top plate 14 so that it may protrude and be depressed freely, is situated at the position where the button 50 can contact with the lower surface of the handle 25 and can be depressed to actuate a movable contact 51 which is adapted to cooperate with the button 50, thereby energizing the electric motor M.
  • the movable contact 51 and a fixed one 51' are both attached to an insulating supporter plate 52 formed on the body frame and are electrically connected as shown in FIG. 10.
  • FIGS. 6-9 are all for showing' embodiments similar to but. modifications of the holding mechanism H and those members which can be considered the same as in the previous can opener are given the same references as in the previous figures in order to give brief descriptions for saving the repeti tion of the detailed ones.
  • An engage piece 30a shown in FIGS. 6 and 7 has its one end secured to the front wall 13 of the body frame 10 and the other end extending through slot 55 to the outside of the frameat its free end.
  • the intermediate portion of this engage piece is composed of a curved resilient plate and is always biases towards "theshaft24 to engage with the groove 29a of said shaft, when the shaft 24 is inserted as shown.
  • the engage edge of this piece is ordinarily situated around the prolonged axis of the shaft.
  • the uppermost position and the lowermost one of the slot 55 formed in the side wall of the body frame 10 are so determined that the engagement between the engage piece rotatably mounted on said housing frame, a movable frame, a
  • the shaft 24shown in FIGS. 8 and 9 is provided with the engage groove 29b provided on a part of the cylindrical surface of the shaft 24, with which groove engages the engage piece 30b'with its free and formed according to the idea embodied in FIGS. 6 and 7, provided that the handle 25 is placed at the position for opening operation as shown in FIGS. 1 and-3, but said engage edge 30' contacts with the lower portion of the shaft 24 which has no groove as shown in FIG. 9, with the shaft 24 being pushed out towards the front of the body frame when the handle 25 is raised upwards in FIG. 1 and is further curved tothe left of FIG. 1.
  • the cutter 40 contaminated with canned foods can be taken away together with the movable frame 23 from the body frame 10 to make it possible to wash the cutter member separately from the body frame.”
  • the shaft 24 of the movable frame 23 and the holding mechanism 1-! therefore are constructed for the removal and mounting of the movable frame as described above, the cutter can be pushed out to the position for easy removal without a touching directly the contaminated cutter by effectuating such simple motion as shifting or curvingthe engage piece, or turning the movable frame and the latter can be held withoutbeing fully separated from the frame.
  • the present invention provides the convenience with which the contaminated cutter is separated, washed and again adapted.
  • a can opener comprising a housing frame, a feeder wheel rotatably mounted on said housing frame, a movable frame, a cutter rotatably supported on said movable frame and positioned against said feeder wheel whereby an end rim of a can to be opened can contact said feeder wheel when said cutter is .cutting the lid of the can near said end rim, said cutter having a form for cutting said lid when said feeder wheel is rotated, means for rotating said feeder wheel, a bearing member provided through said housing frame, a shaft detachably extending through said bearing member and fixedly connected to and pivotally supporting said movable frame, said shaft having a groove,and engage piece connected at one end to said housing frame and curving across said shaft groove when said shaft is inserted in' said bearing member, said piece having a free end extending outwardly through said housing frame, a spring biasing said shaft in its axial direction outwardly of said housing frame, and said piece having an intermediate portion capable of extending into said shaft groove when said shaft is inserted in said bearing member and said shaft
  • a can opener comprising a housing frame, a feeder wheel rotatably mounted on said housing frame, a movable frame, a cutter rotatably supported on said movable frame and positioned against said feeder wheel whereby an end rim of a can to be opened can contact said feeder wheel when said cutter is cutting the lid of the can near said end rim, said cutter having a form for cutting into said lid when said feeder wheel is rotated, means for rotating said feeder wheel, a bearing member mounted through said housing frame, a shaft detachably extending through said bearing member and fixedly connected to and pivotally supporting said movable frame, said shaft having a groove extending across a portion of the periphery of said shaft, and engage piece connected at one end to said housing frame and curving across said shaft groove upon the insertion of said shaft in said bearing member and a spring biasing said shaft in its axial direction outwardly of said housing frame, a part of said piece being capable of entering said shaft groove and disengageable from said groove by rotati i k i 1

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
US851635A 1969-04-23 1969-08-20 Can opener device Expired - Lifetime US3673682A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3191469 1969-04-23

Publications (1)

Publication Number Publication Date
US3673682A true US3673682A (en) 1972-07-04

Family

ID=12344234

Family Applications (1)

Application Number Title Priority Date Filing Date
US851635A Expired - Lifetime US3673682A (en) 1969-04-23 1969-08-20 Can opener device

Country Status (4)

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US (1) US3673682A (de)
DE (1) DE2002193A1 (de)
FR (1) FR2042071A5 (de)
GB (1) GB1289364A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757416A (en) * 1971-04-24 1973-09-11 Aichi Electric Mfg Electrically powered can opener
US3768159A (en) * 1972-07-12 1973-10-30 Dynamics Corp America Can opener cutter assembly release
US3772777A (en) * 1971-08-02 1973-11-20 Mc Graw Edison Co Can opener with removable cutter
US4028807A (en) * 1976-01-08 1977-06-14 General Signal Corporation Can opener latch for releasing cutting assembly
DE3729261A1 (de) * 1987-09-02 1989-03-23 Braun Ag Elektrisch angetriebener dosenoeffner
US5313708A (en) * 1992-12-04 1994-05-24 The Rival Company Can opener
USD411789S (en) * 1998-01-09 1999-07-06 The Rival Company Can opener
US5992026A (en) * 1998-01-09 1999-11-30 The Rival Company Kitchen appliance with pivotal mounting
US6189221B1 (en) 1998-12-31 2001-02-20 The Rival Company Can opener appliance having a side-cutting mechanism
US6510613B1 (en) 2000-07-20 2003-01-28 The Holmes Group, Inc. Ergonomic can opener

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348305A (en) * 1966-01-10 1967-10-24 Sunbeam Corp Can opener
US3508331A (en) * 1968-10-14 1970-04-28 Rival Manufacturing Co Can opener with removable hand lever and lever adjusting means
US3520056A (en) * 1968-01-15 1970-07-14 Rival Manufacturing Co Removable hand lever construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348305A (en) * 1966-01-10 1967-10-24 Sunbeam Corp Can opener
US3520056A (en) * 1968-01-15 1970-07-14 Rival Manufacturing Co Removable hand lever construction
US3508331A (en) * 1968-10-14 1970-04-28 Rival Manufacturing Co Can opener with removable hand lever and lever adjusting means

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757416A (en) * 1971-04-24 1973-09-11 Aichi Electric Mfg Electrically powered can opener
US3772777A (en) * 1971-08-02 1973-11-20 Mc Graw Edison Co Can opener with removable cutter
US3768159A (en) * 1972-07-12 1973-10-30 Dynamics Corp America Can opener cutter assembly release
US4028807A (en) * 1976-01-08 1977-06-14 General Signal Corporation Can opener latch for releasing cutting assembly
DE3729261A1 (de) * 1987-09-02 1989-03-23 Braun Ag Elektrisch angetriebener dosenoeffner
US5313708A (en) * 1992-12-04 1994-05-24 The Rival Company Can opener
USD411789S (en) * 1998-01-09 1999-07-06 The Rival Company Can opener
US5992026A (en) * 1998-01-09 1999-11-30 The Rival Company Kitchen appliance with pivotal mounting
US6189221B1 (en) 1998-12-31 2001-02-20 The Rival Company Can opener appliance having a side-cutting mechanism
US6510613B1 (en) 2000-07-20 2003-01-28 The Holmes Group, Inc. Ergonomic can opener

Also Published As

Publication number Publication date
GB1289364A (de) 1972-09-20
DE2002193A1 (de) 1970-11-05
FR2042071A5 (de) 1971-02-05

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