NZ628067B2 - Food processing tool - Google Patents
Food processing tool Download PDFInfo
- Publication number
- NZ628067B2 NZ628067B2 NZ628067A NZ62806712A NZ628067B2 NZ 628067 B2 NZ628067 B2 NZ 628067B2 NZ 628067 A NZ628067 A NZ 628067A NZ 62806712 A NZ62806712 A NZ 62806712A NZ 628067 B2 NZ628067 B2 NZ 628067B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- axis
- drive
- gear
- ingredients
- bowl
- Prior art date
Links
- 239000004615 ingredient Substances 0.000 claims abstract description 34
- 150000001875 compounds Chemical class 0.000 claims description 8
- 210000001699 lower leg Anatomy 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000003319 supportive Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 3
- 230000003993 interaction Effects 0.000 description 2
- 230000001419 dependent Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/046—Machines 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/0705—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the upper side
- A47J43/0711—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the upper side mixing, whipping or cutting tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/0716—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the lower side
- A47J43/0722—Mixing, whipping or cutting tools
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
- A47J43/07—Parts or details, e.g. mixing tools, whipping tools
- A47J43/08—Driving mechanisms
- A47J43/082—Driving mechanisms for machines with tools driven from the upper side
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
- A47J43/10—Egg-whisks; Cream-beaters, i.e. hand implements or hand-driven devices
- A47J43/1006—Hand-driven mixing devices with rotating tools, e.g. sticking out from the bottom of the mixing receptacle; with rotating bowls; with an additional function
- A47J43/1018—Hand-driven mixing devices with rotating tools, e.g. sticking out from the bottom of the mixing receptacle; with rotating bowls; with an additional function the mixing device being fitted on the cover of, or directly on, the stationary mixing receptacle
- A47J43/1025—Hand-driven mixing devices with rotating tools, e.g. sticking out from the bottom of the mixing receptacle; with rotating bowls; with an additional function the mixing device being fitted on the cover of, or directly on, the stationary mixing receptacle with gears between the drive axis and the driven axis, e.g. for planetary motion of tools or for coaxial tools
-
- B01F7/00858—
-
- B01F7/00991—
-
- B01F7/305—
Abstract
Food processor attachment (10). The tool (10) comprises first and second curved blades (20, 30) which depend from a casing part (40) that is rotated within a processing bowl (60) by means of a geared arrangement that picks up rotary drive from a drive shaft (43) coupled to a driven outlet on the base of the food processor. The blades (20, 30) are disposed at different distances from the axis about which the casing rotates, so that the outer blade (20) passes closer to the wall of the bowl (60) than does the inner blade (30), and the food-contacting surfaces of the blades are each formed to gently lift and turn ingredients, such that the outer blade (20) turns ingredients in towards the axis and the inner (30) blade turns ingredients outwardly therefrom. The blades (20, 30) may be mounted to the casing part (40) for simple bodily rotation therewith. Alternatively, one or both of the blades (20, 30) may be capable of rotation relative to the casing part (40). The blades (20, 30) can be made removable from the casing part (40) to facilitate cleaning. e of the food processor. The blades (20, 30) are disposed at different distances from the axis about which the casing rotates, so that the outer blade (20) passes closer to the wall of the bowl (60) than does the inner blade (30), and the food-contacting surfaces of the blades are each formed to gently lift and turn ingredients, such that the outer blade (20) turns ingredients in towards the axis and the inner (30) blade turns ingredients outwardly therefrom. The blades (20, 30) may be mounted to the casing part (40) for simple bodily rotation therewith. Alternatively, one or both of the blades (20, 30) may be capable of rotation relative to the casing part (40). The blades (20, 30) can be made removable from the casing part (40) to facilitate cleaning.
Description
FOOD PROCESSING TOOL
This invention relates to food processing, and it relates more especially to
a tool attachable to an electrically driven food processor and usable for
mixing ingredients in a bowl. The tool has particular application to the
kind of processing that involves folding ingredients together without
substantial expulsion of air from the mix.
Such processing is quite difficult to carry out manually, since the
ingredients must be moved in a way that takes practice to perfect.
Typically, a large spoon is used to gently lift and fold ingredients together.
However, over folding or under folding can result in unsatisfactory results,
either with the final product not rising fully and/or with the ingredients not
being mixed together properly.
The present invention aims to simplify the folding process by providing a
tool which, when used as an attachment to a food processor, enables
automating and optimising the folding action so that users can reliably
produce acceptable results, even if they are not experienced in the
requisite manual techniques.
According to the invention there is provided a tool for processing
foodstuff ingredients in a bowl of a food processor; the tool comprising a
casing part mounted for bodily rotation about a drive-shaft axis disposed
in operation centrally of the bowl, the casing part housing gear means
adapted to pick up rotary drive from a food processor drive-shaft disposed
on said drive-shaft axis and driven from beneath the bowl; said gear means
including a gear wheel mounted on said axis, and the casing supporting
(followed by 2a)
first and second blade members depending therefrom into the bowl, said
blade members being disposed at different distances from said drive-shaft
axis and at different orientations there-around, and each formed with a
compound curvature and tilt to simulate manual folding of ingredients
using a spoon, thereby to gently lift and turn said ingredients; the blade
member further from said drive-shaft axis being configured to turn
ingredients in towards the axis and the blade member closer to said drive-
shaft axis being configured to turn ingredients outwardly therefrom.
The term 'comprising' as used in this specification and claims means
'consisting at least in part of. When interpreting statements in this
specification and claims which include the term 'comprising', other
features besides the features prefaced by this term in each statement can
also be present. Related terms such as 'comprise' and 'comprised' are to
be interpreted in a similar manner.
By this means, the gentle folding action achieved by an experienced cook
using spoons is simulated.
Preferably the gear means comprises first and second gear wheels
configured as an epicyclic gearbox, since this configuration provides a
rugged and reliable gearbox within a casing of usefully shallow
dimensions. I
This advantage and other stated advantages are advantages of at least preferred
embodiments of the invention. It is not necessary for every embodiment of the invention
to meet each stated advantage.
(followed by 3)
Preferably the gear means causes the tool to rotate at a speed in the range
from 15 to 60 rpm, since this permits ingredients to be folded without
significant expulsion of air.
In preferred embodiments, the blade members are removable from the
casing part to facilitate cleaning or replacement.
It is preferred that the blade members are each formed with a compound
curvature and tilt to simulate manual folding of ingredients using a spoon.
In some preferred embodiments of the invention, the blade members
remain fixed relative to said casing part when in operation, as this
provides a robust and economic configuration of components.
In other embodiments of the invention, however, one or more of the blade
members can be adapted to rotate relative to the casing part during
operation, and such embodiments preferably comprise further driving
means for causing at least one of said blade members to rotate about a
second axis offset from that of the food processor shaft.
Preferably, in such embodiments, said second axis is disposed
substantially parallel to the axis of said drive shaft.
In some preferred embodiments of the invention, said gear means
comprises a first stationary sun gear, centered on said axis, and a planet
gear having a first gear located and configured to pick up rotational drive
from said drive shaft and a second gear arranged to mesh with and run
around said sun gear. Moreover, it is then preferred that said further
driving means comprises a second stationary sun gear disposed coaxially
with the first, and a second planet gear centered on said second axis; the
second planet gear being arranged to mesh with and run around the
second sun gear as the casing part rotates bodily around the first-
mentioned axis when driven by said drive shaft.
In some preferred embodiments of the invention, at least one of said blade
members and/or a supportive shank thereof is flexible.
In any event, to utilise the invention, a user simply attaches the tool to a
food processor, sets the operating speed of the food processor to the
desired speed and runs the machine for a predetermined length of time.
in order that the invention may be clearly understood and readily carried
into effect, embodiments thereof will now be described, by way of
example only, with reference to the accompanying drawings of which:
Figure 1 shows a food processor bowl, in phantom outline, and a
perspective view of a tool in accordance with one example of the
invention, in a first orientation therein;
Figure 2 is similar to Figure 1, but shows the tool in a second orientation
in the bowl;
Figure 3 shows the tool with the upper part of its casing removed to
reveal the internal gearing in exploded view;
Figure 4 indicates how the paddle-like blades may be removed from the
tool for cleaning and storage; and
Figures 5 and 6 are overhead and isometric views respectively of a tool in
accordance with another example of this invention.
Referring now to Figures 1 through 4 of the drawings, the tool 10 in
accordance with this embodiment of the invention comprises a pair of
paddle-like blades 20 and 30 depending from a casing 40 which contains
planet and sun gear wheels 41 and 42 respectively, arranged so as to pick
up the drive from a drive shaft, disposed centrally of the bowl 60 of an
electrically driven food processor. The lower part of the drive shaft is
shown at 43 in Figures 1 to 3, and its upper part is shown at 50 in Figure
3. The tool 10 is configured and disposed so as to slowly and bodily
rotate around the shaft 43, 50.
As is well known, the drive shaft is driven in rotation from beneath the
bowl 60 by means of an electric motor housed in a base casing (not
shown) of the food processor, and appropriately geared. In this example,
the drive shaft 43, 50 is fitted over, and driven by, an in-bowl drive
system located in the base of the bowl and driven from an outlet of the
food processor.
In some alternative embodiments, the drive shaft 43, 50 passes through an
aperture in the base of the bowl 60 and runs in a central tube or chimney
extending along the central axis of the bowl. It will be appreciated in this
respect, however, that the precise manner in which the drive of the food
processor is picked up and conveyed to the tool 10 is of little significance
to the operation of the invention.
Returning to the present embodiment of the invention, the paddle-shaped
blades 20 and 30 are formed, as shown in the drawings, with flat, open
food-contacting surfaces which are gently curved and tilted towards their
lower ends; the overall shape of each blade being intended to simulate the
aforementioned manual folding movement when the casing 40 with its
two dependent blades 20, 30 is bodily rotated at a slow speed about the
axis of the drive shaft 50 by the interaction of the gears 41 and 42 with
the shaft 43, 50. Gear 42 is, in this example, kept stationary, either by
location to hard (fixed) points on the lid or by other means. In other
embodiments, however, gear 42 may be driven, if a dual drive additional
gearbox system is utilised.
As can be seen from the drawings, the blades 20 and 30 depend from
opposite ends of the casing 40 and thus they are angularly offset as
regards motion around the bowl. Indeed, in this example, the blades are
offset by substantially 180 degrees in angle. Furthermore, the blades are
disposed at different locations radially of the bowl 60. In this respect,
blade 20, is disposed close to the upright wall of the bowl 60 and thus
constitutes an outer blade; the tilt on its food-contacting surface being
inwards towards the centre of the bowl. Blade 30, on the other hand,
rotates closely around the centre of the bowl 60, and the tilt on its food —
contacting surface is outwards, towards the side wall of the bowl 60.
The outer blade 20 is thus effective, in use, to lift ingredients in the bowl
and roll them over towards the centre of the bowl 60, whereas the inner
blade 30 is designed to lift ingredients and roll them over towards the
outside wall of the bowl 60.
In this way, the tool 10 as a whole is designed to simulate the folding
action required to fold ingredients together without knocking the air out;
the profiles of the blade surfaces being designed to simulate the
movement that would be achieved manually if using a spoon.
The planet and sun gears 41 and 42 and their interaction with the main
drive shaft 43, 50 constitute an epicyclical gearbox, built into the casing
40 of the tool 10 which, in this example, is effective to reduce the
rotational speed of the blades 20 and 30 down to 15 to 60 rpm, which is
slow enough to fold the ingredients without knocking out the air.
The blades 20 and 30 do not, in this example, move relative to the casing
40 in operation, although one or both of them can be configured to do so
if preferred, and one example of such an arrangement will be described
later with reference to Figures 5 and 6. In any event, it is preferred that
the blades 20 and 30 are removable from the casing 40 for cleaning and
storage purposes, as shown in Figure 4. In this respect, it will be
appreciated that the blades 20 and 30 can be coupled to the casing 40 in
any convenient way to permit ready removal and ready and secure re-
attachment. Moreover, in this example, the fold tool 10 is configured to
rotate bodily in an anti-clockwise direction within the bowl 60.
The fold tool is shown in Figures 1 and 2 of the drawings as fitted into the
processor bowl 60, but with the bowl lid removed.
In operation, the ingredients are moved around as the blades 20, 30 move
within the bowl. The outer blade 20 scoops the ingredients up, rolls them
over and deposits them towards the centre of the bowl 60. The inner
blade 30, on the other hand, scoops the ingredients up, rolls them over
and deposits them towards the outer part of the bowl 60.
As mentioned above, and as can be seen from the drawings, the fold tool
10 is rotated around the bowl via an epicyclic gearbox 41, 42 built into
the casing 40. In operation, rotation of the drive shaft 43, 50 rotates
planet gear 41, which is a compound gear. Sun gear 42 constitutes the
final gear and is locked to the lid (not shown) of the bowl 60. As the
compound gear 41 rotates, it runs around the outside of the final gear 42
which causes the fold tool 10 as a whole to rotate as described within the
bowl 60, with blade 20 moving close to the upright wall of the bowl and
blade 30 moving close to the centre of the bowl.
In the example of the present invention now to be described with
additional reference to Figures 5 and 6, the outer blade 20 is arranged to
rotate about a vertical axis 70 which is oriented parallel to that of the
drive shaft 43, 50. It will be appreciated that, in other examples, the
inner blade 30 could be caused to rotate instead of, or as well as, the outer
blade 20.
With particular reference now to Figures 5 and 6, the rotary movement of
tool 20 about the axis 70 is conveniently achieved by modifying the
gearing shown in Figure 3 by providing the sun gear 42 with an upper,
stationary gearwheel 44 coaxially with the stationary gearwheel 42, and
arranging the gearwheel 44 to mesh with a mobile gearwheel 45 that is
capable of turning the outer tool 20 about the axis 70 when the casing 40
is driven in rotation.
By this means, the compound gearwheel 41 meshes with driving splines
on the shaft 43, 50 and causes the smaller gear on gearwheel 41 to run
around the stationary gearwheel 42, as before. This causes bodily
movement of the casing 40 about the axis of the central drive shaft 43, 50;
carrying the tools 20 and 30 around with it.
In addition, in the arrangement of Figures 5 and 6, however, the stationary
gearwheel 42 is also foi flied as a compound gear, carrying a smaller,
upper gearwheel 44. A further gearwheel 45, located coaxially with the
outer tool 20, is carried around by the casing 40 and is configured to run
wheel 44, thereby causing the outer tool
around the upper stationary gem -
to rotate about the axis 70. It will be appreciated that alternative
driving techniques could be used without departing from the scope of the
invention and moreover, as already mentioned, that the inner tool 30
could be driven instead of, or as well as, the outer tool 20. It will also be
appreciated that the gearing ratios will be selected to provide a desired
bodily rotation rate for the casing 40 and a desired rotational rate of the
tool 20 (and/or of the tool 30).
In any event, it is preferred that the blades 20 and 30 are removable from
the casing 40 for cleaning and storage purposes, as previously described
with reference to Figure 4. In this respect, it will be appreciated that the
blades 20 and 30 can be coupled to the casing 40 in any convenient way
to permit ready removal and ready and secure re-attachment. The shape
of the tools 20 and 30 will clearly vary with different food processor
designs and in some embodiments of the invention, particularly where
one or both of the tools are driven in rotation, the tools 20, 30 may be
interchangeable to achieve different processing characteristics.
In this example of the invention, the fold tool 10 is configured to rotate
bodily in an anti-clockwise direction within the bowl 60, and the outer
tool 20 also rotates anti-clockwise about the axis 70. It will be
appreciated, however, that other relationships between the rotational
directions of the various components of the tool 10 can be used if
preferred.
In operation, the ingredients are moved around as the blades 20, 30 move
within the bowl. The outer blade 20 scoops the ingredients up, rolls them
over and deposits them towards the centre of the bowl 60. The inner
blade 30, on the other hand, scoops the ingredients up, rolls them over
and deposits them towards the outer part of the bowl 60.
As mentioned above, and as can be seen from the drawings, the fold tool
is, in this example of the invention, rotated around the bowl and the
blade 20 simultaneously rotated about its own axis, via an epicyclic
gearbox 41, 42, 44, 45 built into the casing 40.
If desired, either or both of the blades 20 and 30 and/or their supporting
shanks may be made somewhat flexible, or may be made of material that
can flex in use. Alternatively or additionally, if desired, any edge or
edges of the outer blade 20 that will, during operation, closely approach
the inner wall of bowl 60 may be formed of flexible material, or may
carry a flexible, wiper-like extension so as to ensure soft but consistent
contact between the blade 20 and the said inner wall.
Claims (13)
1. A tool for processing foodstuff ingredients in a bowl of a food processor; the tool comprising a casing part mounted for bodily rotation 5 about a drive-shaft axis disposed in operation centrally of the bowl, the casing part housing gear means adapted to pick up rotary drive fi -om a food processor drive shaft disposed on said drive-shaft axis and driven from beneath the bowl; said gear means including a gear wheel mounted on said axis, and the casing supporting first and second blade members 10 depending therefrom into the bowl; said blade members being disposed at different distances from said drive-shaft axis and at different orientations there-around, and each formed with a compound curvature and tilt to simulate manual folding of ingredients using a spoon, thereby to gently lift and turn said ingredients; the blade member further from said drive-shaft 15 axis being configured to turn ingredients in towards the axis and the blade member closer to said drive-shaft axis being configured to turn ingredients outwardly therefrom.
2. A tool according to claim 1, wherein said gear means comprises first 20 and second gear wheels configured as an epicyclic gearbox.
3. A tool according to claim 1 or claim 2, wherein said gear means causes said tool to rotate at a speed in the range from 15 to 60 rpm. 25
4. A tool according to any preceding claim wherein said blade members are removable from said casing part.
5. A tool according to claim any preceding claim, wherein said gear wheel comprises a stationary sun gear, centered on said drive-shaft axis, and said gear means further comprises a compound planet gear having a first gear located and configured to pick up rotational drive from said drive 5 shaft and a second gear arranged to mesh with and run around said sun gear.
6. A tool according to any preceding claim, wherein, in operation, said blade members remain fixed relative to said casing part.
7. A tool according to any of claims 1 to 5, comprising further driving means for causing at least one of said blade members to rotate about a second axis offset from that of the food processor drive shaft. 15
8. A tool according to claim 7, wherein said second axis is disposed substantially parallel to the axis of said drive shaft.
9. A tool according to claim 8, wherein said further driving means comprises a second stationary sun gear disposed coaxially with the first, 20 and a second planet gear centered on said second axis; the second planet gear being arranged to mesh with and run around the second sun gear as the casing part rotates bodily around the drive-shaft axis when driven by said drive shaft.
10. A tool according to any preceding claim, wherein at least one of said blade members and/or a supportive shank thereof is flexible.
11. A tool according to any preceding claim, wherein an edge of at least one of said blade members is formed with or carries a wiper-like extension of flexible material.
12. A tool according to claim 1, substantially as herein described with reference to any embodiment described.
13. A tool for processing foodstuff ingredients in a bowl of a food processor, the tool substantially as herein described with reference to any 10 embodiment disclosed.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1200299.4 | 2012-01-10 | ||
GB1200299.4A GB2498342B (en) | 2012-01-10 | 2012-01-10 | Food processing tool |
PCT/GB2012/053169 WO2013104883A1 (en) | 2012-01-10 | 2012-12-18 | Food processing tool |
Publications (2)
Publication Number | Publication Date |
---|---|
NZ628067A NZ628067A (en) | 2016-02-26 |
NZ628067B2 true NZ628067B2 (en) | 2016-05-27 |
Family
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