GB2167312A - Food processor attachment - Google Patents

Food processor attachment Download PDF

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Publication number
GB2167312A
GB2167312A GB08429253A GB8429253A GB2167312A GB 2167312 A GB2167312 A GB 2167312A GB 08429253 A GB08429253 A GB 08429253A GB 8429253 A GB8429253 A GB 8429253A GB 2167312 A GB2167312 A GB 2167312A
Authority
GB
United Kingdom
Prior art keywords
attachment
mixing bowl
rotation
lid
drive spindle
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
GB08429253A
Other versions
GB8429253D0 (en
GB2167312B (en
Inventor
Keith Colvin
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.)
ICTC ELECTRICAL Ltd
Original Assignee
ICTC ELECTRICAL 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 ICTC ELECTRICAL Ltd filed Critical ICTC ELECTRICAL Ltd
Priority to GB08429253A priority Critical patent/GB2167312B/en
Publication of GB8429253D0 publication Critical patent/GB8429253D0/en
Publication of GB2167312A publication Critical patent/GB2167312A/en
Application granted granted Critical
Publication of GB2167312B publication Critical patent/GB2167312B/en
Expired legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47JKITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A47J43/046Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

An attachment (1) for a food processor (2) is provided with its own gearing system (9, 11, 16) preferably epicyclic, to enable the speed of rotation of the food processor drive spindle (6) to be reduced whereby the processing head (18) rotates at a speed less than or greater than that of the drive spindle. As shown it comprises a first, driven, member (7) having a sun gear (9) which engages with planet gears (11) carried on a second, rotary member (10) which is mounted (preferably detachably) a tool (18). Rotation of internal gear (16) is prevented by a locating ring (17) which locates in the inlet opening (5) of the lid (4). <IMAGE>

Description

SPECIFICATION Improved attachment for a food processor This invention relates to an accessory for attachment to a food processor and more particularly but not exclusively, to an egg whisk attachment.
Food processors are driven by an electric motor which is either driven at one constant speed or it may have a motor which can be driven at one of several different speeds. A common speed for such motors is 1500 r.p.m. which is suitable for most mixing or liquidising operations. However, for certain operations such as egg whisking, a much lower speed of about 500 r.p.m.is needed. If the food processor does not have any facility on it to drive the motor at such a speed, it means that it cannot be used for that purpose. Conversely, a speed of between 4000 and 6000 r.p.m. may be needed for the extraction of juices from fruit and/or vegetables.
The problem to be solved therefore is to provide an attachment for fitting to a known food processor which is provided with its own means whereby in use, it will step down or step up its speed of rotation in relation to the speed of the food processor motor driving it.
According to the invention, there is provided an attachment for fitting to a food processor with a detachable mixing bowl whose drive spindle protrudes through the base thereof, the attachment comprising a first member rotatable by said drive spindle about an axis and a second member concentrically mounted for rotation about said axis at a speed different from that of the first member by gearing provided on the first and second members.
Preferably a processing head is detachable from the second member, for instance by means of a bayonet fitting, but it may be part of the second member. The processing head may be of any convenient form such as a paddle, a stirrer, a beater, a slicer or a whisk depending on the process to be carried out in the food mixer bowl.
The gearing can either step down or step up the speed of rotation of the second member in relation to the driven speed of the first member. The preferred arrangement however steps-down the speed using epicyclic gearing.
In a preferred embodiment, the first member has a sun gear at one end which is seated in a recess in one end of the second member.
Conveniently, the second member is tubular and of a greater diameter than that of the sun gear, the diameter of the recess being substantially the same as the mean diameter of the sun gear.
In the preferred embodiment to be described hereafter, the second member acts as a carrier for at least one but preferably two planet gears mounted diametrically opposite each other to mesh with the sun gear on the first member. More than two planet gears may however be provided but, in any event, the or each planet gear meshes with a toothed annulus provided around the interior of an end cap, said cap having locating means thereon which cooperate with the mixing bowl or its lid to prevent the cap from rotating in relation to the first and second members.
The locating means can cooperate with the side wall of the mixing bowl but preferably it locates in a seat provided on the lid. Alternatively, a protrusion, in the form of an open ring of the same cross section as the feed hole in the lid of the mixing bowl, extends laterally from the cap so that it will locate in the feed hole in the lid of the mixing bowl to captivate the end cap against rotation.
Due to the simple design of the attachment of the invention, all of its component parts can be readily moulded from a plastics material which keeps manufacturing costs down and facilitates cleaning.
A preferred attachment of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which Figure 1. is a side view of an attachment of the invention with an egg whisk mixing head thereon, Figure 2. is a plan view of the attachment of Figure 1 and, Figure 3. is a cross section through the attachment of Figure 1 but with the end cap shown separated from the remainder of the device.
Referring now to the drawings, there is shown in Figure 3 an attachment 1 for fitting to a food processor 2 (shown schematically) having a detachable mixing bowl 3 fitted thereto to which a removable lid 4 may be fitted. The lid 4 is provided with an inlet opening 5 through which food to be processed is fed to the mixing bowl. A drive spindle 6 protrudes from the top of the processor body 2 through the base of the mixing bowl, this spindle being connected to and rotated by a motor (not shown) which may be of the series or induction type. It should be noted the the food processor 2 and its mixing bowl and lid does not form any part of the present invention. The invention is concerned only with the attachment 1 which is fitted to the drive spindle 6 to be driven thereby.
The attachment comprises a first member 7 rotatable by the drive spindle 6. A keyed passage 8 is provided in the base of the member 7 to cooperate with and locate on the similarly keyed drive spindle 6. A sun gear 9 is provided at the end of the member 7 remote from the passage 8.
Coaxial with the member 7 and the sun gear 9 is a tubular second member 10 which is rotatable around the first member 7 by means of planet gears 11 mounted diametrically op posite each other in mountings 12a, 1 2b provided on the second member 10. The planet gears protrude through windows 13 in the wall of the second member to mesh constantly with the sun gear 9 on the first member 7.
The mountings 12a, 1 2b are spaced fingers provided with facing indentations (not shown) to receive and locate the planet gear spindles 1 1a, 1 1b. As the whole of the second member 10 including the fingers 12a, 12b is moulded from a plastics material, the fingers are resilient enough to spring apart to permit insertion of the planet gears and then grip their spindles 1 1a, 1 1b once they have located in their indentions.
It will be noted that the diameter of the tubular second member 10 is reduced in the region of the sun gear 9 on the first member 7 to provide a recess 13 of approximately the same diameter as the sun gear 9 thereby effectively locating the first member 7 in the second member 10.
The second member 10 also includes an annular laterally projecting seat or lip 14, against which an end cap 15 seats. The interior of the end cap 15 is provided with a toothed annulus 16 which constantly meshes with the planet gears 11, when it is in its lowered position seated against lip 14. A locating ring 17 extends laterally from the edge of the cap 15 and is dimensioned and positioned so that it will locate in the inlet opening 5 in the lid 4 of the mixing bowl 3 when the lid is placed in position. This fitting of the ring in the lid opening 5 effectively captivates the end cap and prevents its rotation when the drive spindle 6 is rotated by the food processor motor (not shown).
A mixer head 18, an egg whisk in the drawing, is removably fitted to the end of the second member 10 by means of a bayonet pin 19 and suitable shaped slot 20. An annular lip 21 axially locates the mixer head 18.
It will be seen from the foregoing description of the device shown in the drawings that it is provided with its own epicyclic gearing arrangement which will effectively step down the speed of rotation of the second member 10 in relation to the speed of rotation of the first member 7 driven by the food processor drive spindle 6. As an example, with the arrangement illustrated, the drive spindle speed of 1500 r.p.m. can be reduced to 500 r.p.m.
which is what is required for egg whisking.

Claims (15)

CLAIMS Amendments to the claims have been filed, and have the following effect: Claim 1 above has been textually amended. Textually amended claim is as follows: 1. An attachment for fitting to a food processor with a detachable mixing bowl whose drive spindle protrudes through the base thereof, the attachment comprising a first member adapted to fit to and be driven in rotation by said drive spindle about an axis and a second member concentrically mounted for rotation about said axis at a speed different from that of the first member by gearing provided on the first and second members, said second member being adapted to carry a food processing head. CLAIMS
1. An attachment for fitting to a food processor with a detachable mixing bowl whose drive spindle protrudes through the base thereof, the attachment comprising a first member rotatable by said drive spindle about an axis and a second member concentrically mounted for rotation about said axis at a speed different from that of the first member by gearing provided on the first and second members.
2. An attachment as claimed in claim 1 wherein a processing head is provided on the second member.
3. An attachment as claimed in claim 2 wherein the head is releasably attached to the second member.
4. An attachment as claimed in any of claims 1 to 3 wherein the gearing reduces the speed of rotation of the second member in relation to the driven speed of the first member.
5. An attachment as claimed in claim 4 wherein the gearing is epicyclic.
6. An attachment as claimed in claim 5 wherein the first member has a sun gear at one end which is seated in a recess in one end of the second member.
7. An attachment as claimed in claim 6 wherein the second member is tubular and of a greater diameter than that of the sun gear.
8. An attachment as claimed in claim 6 or claim 7 wherein the diameter of the recess is substantially the same as the mean diameter of the sun gear.
9. An attachment as claimed in any of claims 5 to 8 wherein the second member is a carrier for at least one planet gear which is mounted to mesh with the sun gear on the first member.
10. An attachment as claimed in claim 9 wherein the carrier mounts two planet gears located diametrically opposite each other.
11. An attachment as claimed in claim 9 wherein more than two planet gears are provided.
12. An attachment as claimed in any of claims 9 to 11 wherein the or each planet gear meshes with a toothed ahnulus provided around the intension of an end cap, said cap having locating means whereon which cooperate with the mixing bowl or its lid to prevent the cap from rotating in relation to the first and second members.
13. An attachment as claimed in claim 12 wherein the locating means is a protrusion which locates in a seat provided on the lid of the mixing bowl.
14. An attachment as claimed in claim 12 wherein the locating means is an open ring of the same cross section as the feed hole in the lid of the mixing bowl, said ring being mounted on the end cap so that it will locate in the feed hole in the lid of the mixing bowl to captivate the end cap against rotation.
15. A mixing attachment substantially as herein described with reference to the accom panying drawings.
GB08429253A 1984-11-20 1984-11-20 Improved attachment for a food processor Expired GB2167312B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08429253A GB2167312B (en) 1984-11-20 1984-11-20 Improved attachment for a food processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08429253A GB2167312B (en) 1984-11-20 1984-11-20 Improved attachment for a food processor

Publications (3)

Publication Number Publication Date
GB8429253D0 GB8429253D0 (en) 1984-12-27
GB2167312A true GB2167312A (en) 1986-05-29
GB2167312B GB2167312B (en) 1988-08-24

Family

ID=10569973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08429253A Expired GB2167312B (en) 1984-11-20 1984-11-20 Improved attachment for a food processor

Country Status (1)

Country Link
GB (1) GB2167312B (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292664A2 (en) * 1987-05-29 1988-11-30 Braun Aktiengesellschaft Tool for food processing
US4919345A (en) * 1988-02-25 1990-04-24 Ofrex Group Holdings Plc Shredding machines
US4924444A (en) * 1989-04-24 1990-05-08 Ruben Castellanos Stirring implement
GB2231774A (en) * 1989-04-29 1990-11-28 Philips Nv Electric domestic appliance for chopping solid-flesh fruit and vegetables, and meat products
GB2231775A (en) * 1989-04-29 1990-11-28 Philips Nv Electric domestic appliance for chopping solid-flesh fruit and vegetables
FR2787311A1 (en) * 1998-12-21 2000-06-23 Seb Sa Multi-function food processor, has working vessel having rounded corners with blade following the rounded curvature of the vessel
FR2820021A1 (en) 2001-01-31 2002-08-02 Seb Sa Rotary working head for kitchen food preparation machine has main and auxiliary drive hubs with lugs to engage with first and second implements
EP2085005A1 (en) * 2008-01-31 2009-08-05 Seb SA Household cooking appliance with a housing containing a motor and a container with a rotary tool
EP2147624A1 (en) * 2008-07-25 2010-01-27 Seb SA Working bowl for a food processor with improved sealing
GB2498342A (en) * 2012-01-10 2013-07-17 Kenwood Ltd Food processing tool
FR2997000A1 (en) * 2012-10-24 2014-04-25 Seb Sa Fixing unit for domestic electrical food cooking and/or reheating appliance i.e. dry cooking enabled deep fryer, has reducer that is arranged to impose number of revolutions that is different from number of revolutions of input axis
DE102021214371A1 (en) 2021-12-15 2023-06-15 BSH Hausgeräte GmbH Food processor with a kneading tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB956383A (en) * 1960-03-16 1964-04-29 Fichtel & Sachs Ag Improvements in eccentric transmissions
GB1073535A (en) * 1964-10-21 1967-06-28 Inst Fordertechnik Leipzig Epicyclic gearing
GB1142898A (en) * 1967-07-13 1969-02-12 Takahashi Takashi Improvements in or relating to double spur gearing
GB1456085A (en) * 1974-04-18 1976-11-17 Vickers Ltd Gears
GB1523046A (en) * 1975-07-04 1978-08-31 Teijin Seiki Co Ltd Driving mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB956383A (en) * 1960-03-16 1964-04-29 Fichtel & Sachs Ag Improvements in eccentric transmissions
GB1073535A (en) * 1964-10-21 1967-06-28 Inst Fordertechnik Leipzig Epicyclic gearing
GB1142898A (en) * 1967-07-13 1969-02-12 Takahashi Takashi Improvements in or relating to double spur gearing
GB1456085A (en) * 1974-04-18 1976-11-17 Vickers Ltd Gears
GB1523046A (en) * 1975-07-04 1978-08-31 Teijin Seiki Co Ltd Driving mechanism

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0292664A2 (en) * 1987-05-29 1988-11-30 Braun Aktiengesellschaft Tool for food processing
EP0292664A3 (en) * 1987-05-29 1989-01-04 Braun Aktiengesellschaft Tool for food processing
US4919345A (en) * 1988-02-25 1990-04-24 Ofrex Group Holdings Plc Shredding machines
GB2215235B (en) * 1988-02-25 1992-02-05 Ofrex Group Holdings Plc Improvements relating to shredding machines
US4924444A (en) * 1989-04-24 1990-05-08 Ruben Castellanos Stirring implement
GB2231774A (en) * 1989-04-29 1990-11-28 Philips Nv Electric domestic appliance for chopping solid-flesh fruit and vegetables, and meat products
GB2231775A (en) * 1989-04-29 1990-11-28 Philips Nv Electric domestic appliance for chopping solid-flesh fruit and vegetables
GB2231774B (en) * 1989-04-29 1993-10-06 Philips Nv Small electric domestic appliance for chopping solid-flesh fruit and vegetables,more specifically onions,and meat products
GB2231775B (en) * 1989-04-29 1993-10-06 Philips Nv Small electric domestic appliance for chopping solid-flesh fruit and vegtables,more specifically onions
WO2000036960A1 (en) * 1998-12-21 2000-06-29 Seb S.A. Multifunction food processor
FR2787311A1 (en) * 1998-12-21 2000-06-23 Seb Sa Multi-function food processor, has working vessel having rounded corners with blade following the rounded curvature of the vessel
FR2820021A1 (en) 2001-01-31 2002-08-02 Seb Sa Rotary working head for kitchen food preparation machine has main and auxiliary drive hubs with lugs to engage with first and second implements
EP2085005A1 (en) * 2008-01-31 2009-08-05 Seb SA Household cooking appliance with a housing containing a motor and a container with a rotary tool
FR2926969A1 (en) * 2008-01-31 2009-08-07 Seb Sa CULINARY PREPARATION ELECTRICAL APPLIANCE COMPRISING A BOX COMPRISING AN ENGINE AND A CONTAINER RECEIVING A ROTARY TOOL
WO2009112689A2 (en) * 2008-01-31 2009-09-17 Seb S.A. Electrical household food-preparation appliance comprising a housing containing a motor and a receptacle which accepts a rotary tool
WO2009112689A3 (en) * 2008-01-31 2009-11-05 Seb S.A. Electrical household food-preparation appliance comprising a housing containing a motor and a receptacle which accepts a rotary tool
EP2147624A1 (en) * 2008-07-25 2010-01-27 Seb SA Working bowl for a food processor with improved sealing
FR2934142A1 (en) * 2008-07-25 2010-01-29 Seb Sa WORKING SPACER OF CULINARY PREPARATION ELECTRICAL APPLIANCE APPARATUS WITH IMPROVED SEALING
GB2498342A (en) * 2012-01-10 2013-07-17 Kenwood Ltd Food processing tool
US9681778B2 (en) 2012-01-10 2017-06-20 Kenwood Limited Food processing tool
GB2498342B (en) * 2012-01-10 2017-08-02 Kenwood Ltd Food processing tool
FR2997000A1 (en) * 2012-10-24 2014-04-25 Seb Sa Fixing unit for domestic electrical food cooking and/or reheating appliance i.e. dry cooking enabled deep fryer, has reducer that is arranged to impose number of revolutions that is different from number of revolutions of input axis
DE102021214371A1 (en) 2021-12-15 2023-06-15 BSH Hausgeräte GmbH Food processor with a kneading tool

Also Published As

Publication number Publication date
GB8429253D0 (en) 1984-12-27
GB2167312B (en) 1988-08-24

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20041119