WO2008065595A1 - Food processor - Google Patents

Food processor Download PDF

Info

Publication number
WO2008065595A1
WO2008065595A1 PCT/IB2007/054783 IB2007054783W WO2008065595A1 WO 2008065595 A1 WO2008065595 A1 WO 2008065595A1 IB 2007054783 W IB2007054783 W IB 2007054783W WO 2008065595 A1 WO2008065595 A1 WO 2008065595A1
Authority
WO
WIPO (PCT)
Prior art keywords
coupling
cutting device
food processor
elastic element
drive unit
Prior art date
Application number
PCT/IB2007/054783
Other languages
French (fr)
Inventor
Heimo Obersteiner
Werner Murbacher
Original Assignee
Koninklijke Philips Electronics N.V.
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 Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2008065595A1 publication Critical patent/WO2008065595A1/en

Links

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
    • A47J43/07—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
    • 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
    • A47J43/044—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 top side
    • A47J2043/04409—Apparatus of hand held type
    • A47J2043/04427—Apparatus of hand held type with housing extending vertically in line with the tool axis

Definitions

  • the invention relates to the field of domestic appliances.
  • the object of the invention is therefore to provide a food processor with a cutting device which minimizes accidents by misuse.
  • the invention achieves the aforementioned object by means of a food processor with at least one cutting device, which can be connected by means of a coupling with a drive unit, wherein between the cutting device and the coupling an elastic element is assembled.
  • the elastic element hampers that the cutting device can engage easily in the coupling because the elastic element presses apart the cutting device and the coupling. Consequently the coupling cannot transfer the torque to the cutting device.
  • the danger of an accident is reduced as long as the food processor is not assembled completely. Using it with the exposed cutting device is hardly possible. Therefore the food processor according to the invention can avoid accidents even when people try to misuse it for purposes or in a way it is not designed for.
  • the elastic element is a compression spring.
  • the compression spring is a very cheap standard component.
  • the elastic element may not lose from the coupling. Therefore the elastic element can be fixed on the coupling.
  • the elastic element can be fixed on the coupling very quickly and cheaply by hot stamping.
  • the coupling is made of plastics at least in the area where it contacts the elastic element then the elastic element can be fixed on the coupling very well by hot stamping, especially when it is a compression spring. Hot stamping is beneficial in regard to low costs when huge piece numbers are produced.
  • the elastic element can be fixed on the coupling with a fixing element.
  • the fixing element can be engineered in the form of a cap wherein the compression spring is placed positively between the fixing element and the coupling.
  • the fixing element can be welded on the coupling. Especially ultrasonic welding is a cheap method for fixing the fixing element on the coupling in huge piece numbers.
  • the coupling can comprise a pin. The pin centers the elastic element in the center of the coupling.
  • the weight of the at least one cutting device is less than the elastic force.
  • the elastic element hinders the cutting device reliably to engage in the coupling even when the user holds the exposed cutting device in a manner that it is upside of the coupling and the driver unit.
  • the cutting device can only work when the food processor is assembled conventionally. That means that the drive unit is sitting on the coupling and the coupling is placed on a bowl in which the food is cut. When the food processor is assembled in this way the elastic element between the cutting device and the coupling is compressed. Therefore it is helpful for compressing the elastic element when the weight of the coupling and the drive unit altogether is greater than the elastic force.
  • the coupling can have on its open end a funnel shaped edge. This makes the engaging of the cutting device in the coupling more easy because the funnel shaped edge leads the teeth of the cutting device to the teeth of the coupling.
  • Fig. 1 shows an exploded view of a food processor
  • Fig. 2 shows a sectional view of a first embodiment of the coupling
  • Fig. 3 shows a sectional view of a second embodiment of the coupling
  • Fig. 4 shows a sectional view of a third embodiment of the coupling.
  • Fig. 1 shows a food processor 10. It comprises a drive unit 11, a coupling 12 , a cutting device 13 and a bowl 14.
  • the coupling 12 is surrounded by a housing 15 which closes the bowl 14 when the food processor 10 is assembled completely before it is started running.
  • the drive unit 11 can be set up on the housing 15.
  • the cutting device 13 can be clutched in the coupling 12.
  • the housing 15 is set on the bowl 14 together with the cutting device 13 and the drive unit 11.
  • the bowl 14 comprises a pin 16 which can be inserted in the cutting device 13.
  • the function of the pin 16 is to center the cutting device 13 at its lower end.
  • Fig. 2 shows the cutting device 13 during the process of clutching in the coupling 12.
  • a funnel shaped edge 20 leads the cutting device 13 to the teeth 21 of the coupling 12.
  • Teeth 22 of the cutting device 13 can consequently engage reliably in the teeth 21 of the coupling 12.
  • An elastic element 23 which is engineered in this embodiment as a compression spring must be compressed during the process of clutching of the cutting device 13 in the coupling 12.
  • the weight of the cutting device 13 is less than the elastic force. Therefore the weight is not sufficient enough to compress the elastic element 23 when a user holds the cutting device 13 in a manner that it is upside of the coupling 12.
  • the weight of the drive unit 11 and the coupling 12 altogether is greater than the elastic force. Therefore the elastic element 23 is compressed when the food processor 10 is assembled in the way as it is designated to use.
  • a fixing element 24 fixes the elastic element 23 on the coupling 12.
  • the fixing element 24 has the form of a cap.
  • the elastic element 23 is fixed positively by it.
  • the elastic element 23 is fixed with hot stamping on the coupling 12 (see fig. 3).
  • the coupling 12 is made of plastics at least in the area where the elastic element 23 contacts it. So it can be deformed by heat for fixing the elastic element 23 on the coupling 12.
  • the coupling 12 comprises a pin 40 on which the elastic element 23 is arranged (see fig. 4).
  • the pin 40 centers the elastic element 23 in the center of the coupling 12.
  • the elastic element 23 can fulfill its purpose in an optimized manner.

Abstract

The invention relates to a food processor with a coupling (12) and a cutting device (13). Between the coupling (12) and the cutting device (13) an elastic element (23) is arranged. It has the purpose to prevent misuse and injuries of the user when the cutting device (13) is exposed.

Description

Food processor
FIELD OF THE INVENTION
The invention relates to the field of domestic appliances.
BACKGROUND OF THE INVENTION Domestic appliances especially such with a cutting device are often an accident source. People often use them in a manner they are not designed for. For instance it may happen that the cutting device can be used after cleaning before the domestic appliance is assembled completely. Consequently the exposed cutting device can hurt the user.
The object of the invention is therefore to provide a food processor with a cutting device which minimizes accidents by misuse.
SUMMARY OF THE INVENTION
The invention achieves the aforementioned object by means of a food processor with at least one cutting device, which can be connected by means of a coupling with a drive unit, wherein between the cutting device and the coupling an elastic element is assembled. The elastic element hampers that the cutting device can engage easily in the coupling because the elastic element presses apart the cutting device and the coupling. Consequently the coupling cannot transfer the torque to the cutting device. Hence the danger of an accident is reduced as long as the food processor is not assembled completely. Using it with the exposed cutting device is hardly possible. Therefore the food processor according to the invention can avoid accidents even when people try to misuse it for purposes or in a way it is not designed for.
Preferably the elastic element is a compression spring. Thus it can keep apart reliably the cutting device and the coupling. Furthermore the compression spring is a very cheap standard component.
The elastic element may not lose from the coupling. Therefore the elastic element can be fixed on the coupling.
The elastic element can be fixed on the coupling very quickly and cheaply by hot stamping. When the coupling is made of plastics at least in the area where it contacts the elastic element then the elastic element can be fixed on the coupling very well by hot stamping, especially when it is a compression spring. Hot stamping is beneficial in regard to low costs when huge piece numbers are produced.
As an alternative or in addition the elastic element can be fixed on the coupling with a fixing element. When the elastic element is engineered as the compression spring the fixing element can be engineered in the form of a cap wherein the compression spring is placed positively between the fixing element and the coupling. The fixing element can be welded on the coupling. Especially ultrasonic welding is a cheap method for fixing the fixing element on the coupling in huge piece numbers. The coupling can comprise a pin. The pin centers the elastic element in the center of the coupling.
It is useful when the weight of the at least one cutting device is less than the elastic force. Thus the elastic element hinders the cutting device reliably to engage in the coupling even when the user holds the exposed cutting device in a manner that it is upside of the coupling and the driver unit.
For the safety of the user of the food processor it is useful that the cutting device can only work when the food processor is assembled conventionally. That means that the drive unit is sitting on the coupling and the coupling is placed on a bowl in which the food is cut. When the food processor is assembled in this way the elastic element between the cutting device and the coupling is compressed. Therefore it is helpful for compressing the elastic element when the weight of the coupling and the drive unit altogether is greater than the elastic force.
The coupling can have on its open end a funnel shaped edge. This makes the engaging of the cutting device in the coupling more easy because the funnel shaped edge leads the teeth of the cutting device to the teeth of the coupling.
BRIEF DESCRIPTION OF THE DRAWINGS
For better understanding, the invention will be explained in more detail with reference to the following drawings. In the drawings:
Fig. 1 shows an exploded view of a food processor; Fig. 2 shows a sectional view of a first embodiment of the coupling; Fig. 3 shows a sectional view of a second embodiment of the coupling; Fig. 4 shows a sectional view of a third embodiment of the coupling. DETAILED DESCRIPTION OF THE INVENTION
Fig. 1 shows a food processor 10. It comprises a drive unit 11, a coupling 12 , a cutting device 13 and a bowl 14. The coupling 12 is surrounded by a housing 15 which closes the bowl 14 when the food processor 10 is assembled completely before it is started running.
For assembling the food processor 10 the drive unit 11 can be set up on the housing 15. The cutting device 13 can be clutched in the coupling 12. For completing the assembly the housing 15 is set on the bowl 14 together with the cutting device 13 and the drive unit 11.
The bowl 14 comprises a pin 16 which can be inserted in the cutting device 13. The function of the pin 16 is to center the cutting device 13 at its lower end.
Fig. 2 shows the cutting device 13 during the process of clutching in the coupling 12. A funnel shaped edge 20 leads the cutting device 13 to the teeth 21 of the coupling 12. Teeth 22 of the cutting device 13 can consequently engage reliably in the teeth 21 of the coupling 12.
An elastic element 23 which is engineered in this embodiment as a compression spring must be compressed during the process of clutching of the cutting device 13 in the coupling 12. The weight of the cutting device 13 is less than the elastic force. Therefore the weight is not sufficient enough to compress the elastic element 23 when a user holds the cutting device 13 in a manner that it is upside of the coupling 12. Thus it is not possible for the user to use the cutting device 13 in a position when it is upside of the coupling 12. However the weight of the drive unit 11 and the coupling 12 altogether is greater than the elastic force. Therefore the elastic element 23 is compressed when the food processor 10 is assembled in the way as it is designated to use.
A fixing element 24 fixes the elastic element 23 on the coupling 12. The fixing element 24 has the form of a cap. The elastic element 23 is fixed positively by it.
In another embodiment the elastic element 23 is fixed with hot stamping on the coupling 12 (see fig. 3). The coupling 12 is made of plastics at least in the area where the elastic element 23 contacts it. So it can be deformed by heat for fixing the elastic element 23 on the coupling 12.
The coupling 12 comprises a pin 40 on which the elastic element 23 is arranged (see fig. 4). Thus the pin 40 centers the elastic element 23 in the center of the coupling 12. Hence the elastic element 23 can fulfill its purpose in an optimized manner. It is clear to the person skilled in the art that the scope of application of the present invention is not limited to the examples mentioned above, but rather a number of additions and modifications to the invention are possible without departing from the scope of application of the present invention as defined in the appended claims.

Claims

CLAIMS:
1. Food processor (10) with at least one cutting device (13), which can be connected by means of a coupling (12) with a drive unit (11), wherein between the cutting device (13) and the coupling (12) an elastic element (23) is assembled.
2. Food processor (10) as claimed in claim 1, characterized in that the elastic element (23) is a compression spring.
3. Food processor (10) as claimed in claim 1 or 2, characterized in that the elastic element (23) can be fixed on the coupling (12).
4. Food processor (10) as claimed in claim 3, characterized in that the elastic element (23) can be welded on the coupling (12).
5. Food processor (10) as claimed in claim 3 or 4, characterized in that the elastic element (23) can be fixed on the coupling (12) with a fixing element (24).
6. Food processor (10) as claimed in one of the claims 1 to 5, characterized in that the coupling (12) comprises a pin (40).
7. Ford processor (10) as claimed in one of the claims 1 to 6, characterized in that the weight of the at least one cutting device (13) is less than the elastic force.
8. Food processor (10) as claimed in one of the claims 1 to 7, characterized in that the weight of the coupling (12) and the drive unit (11) altogether is greater then the elastic force.
9. Food processor (10) as claimed in one of claims 1 to 8, characterized in that the coupling (12) has on its open end a funnel shaped edge (20).
PCT/IB2007/054783 2006-12-01 2007-11-26 Food processor WO2008065595A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06125212.8 2006-12-01
EP06125212 2006-12-01

Publications (1)

Publication Number Publication Date
WO2008065595A1 true WO2008065595A1 (en) 2008-06-05

Family

ID=39133858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2007/054783 WO2008065595A1 (en) 2006-12-01 2007-11-26 Food processor

Country Status (1)

Country Link
WO (1) WO2008065595A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012113667A1 (en) * 2011-02-21 2012-08-30 BSH Bosch und Siemens Hausgeräte GmbH Tool and drive device for a motor driven kitchen appliance
FR3018179A1 (en) * 2014-03-06 2015-09-11 Realisation Mecaniques Soc Et REMOVABLE KNIFE FOR MIXER'S FOOT AND ONE MIXER'S FOOT

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH321049A (en) * 1953-07-09 1957-04-30 Oster Mfg Co John Household mixer with axially upwardly movable beater
US2832575A (en) * 1956-07-27 1958-04-29 Cirone Joseph Mixer with disposable blade
US2842346A (en) * 1956-03-21 1958-07-08 Westinghouse Electric Corp Food mixer
FR2378485A1 (en) * 1976-02-19 1978-08-25 Seb Sa Domestic food liquidiser with two part casing - has motor in top, food in bottom and knife plugs in adaptor on motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH321049A (en) * 1953-07-09 1957-04-30 Oster Mfg Co John Household mixer with axially upwardly movable beater
US2842346A (en) * 1956-03-21 1958-07-08 Westinghouse Electric Corp Food mixer
US2832575A (en) * 1956-07-27 1958-04-29 Cirone Joseph Mixer with disposable blade
FR2378485A1 (en) * 1976-02-19 1978-08-25 Seb Sa Domestic food liquidiser with two part casing - has motor in top, food in bottom and knife plugs in adaptor on motor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012113667A1 (en) * 2011-02-21 2012-08-30 BSH Bosch und Siemens Hausgeräte GmbH Tool and drive device for a motor driven kitchen appliance
FR3018179A1 (en) * 2014-03-06 2015-09-11 Realisation Mecaniques Soc Et REMOVABLE KNIFE FOR MIXER'S FOOT AND ONE MIXER'S FOOT

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