DE3119833A1 - Method for the production of a transmission for a kitchen appliance - Google Patents

Method for the production of a transmission for a kitchen appliance

Info

Publication number
DE3119833A1
DE3119833A1 DE19813119833 DE3119833A DE3119833A1 DE 3119833 A1 DE3119833 A1 DE 3119833A1 DE 19813119833 DE19813119833 DE 19813119833 DE 3119833 A DE3119833 A DE 3119833A DE 3119833 A1 DE3119833 A1 DE 3119833A1
Authority
DE
Germany
Prior art keywords
sheet metal
gears
spacers
bearing bushes
transmission
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.)
Withdrawn
Application number
DE19813119833
Other languages
German (de)
Inventor
Jürgen 6382 Friedrichsdorf Golob
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.)
Braun GmbH
Original Assignee
Braun GmbH
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 Braun GmbH filed Critical Braun GmbH
Priority to DE19813119833 priority Critical patent/DE3119833A1/en
Publication of DE3119833A1 publication Critical patent/DE3119833A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02017—Gearboxes; Mounting gearing therein characterised by special features related to the manufacturing of the gear case, e.g. special adaptations for casting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02034—Gearboxes combined or connected with electric machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/02—Gearboxes; Mounting gearing therein
    • F16H2057/02039—Gearboxes for particular applications
    • F16H2057/02043—Gearboxes for particular applications for vehicle transmissions
    • F16H2057/02052—Axle units; Transfer casings for four wheel drive

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Food Science & Technology (AREA)
  • Gears, Cams (AREA)

Abstract

In the method according to the invention for the production of a transmission for a kitchen appliance, bearing bushes, spacers and the like are moulded onto sheet-metal blanks in one operation in a mould, axles having been inserted into the mould beforehand and, as a result, being united into a single unit with the bearing bushes. It is thereby possible to dispense with the expensive drilling and reaming of bearings and the subsequent press-fitting of the axles. A transmission constructed by the method according to the invention is distinguished by the fact that the axles (7, 8, 9) are supported in bearing bushes (10, 11, 12) which, for their part, are moulded onto sheet-metal blanks (1, 2, 3), as are the spacers (13, 14) and the other components. <IMAGE>

Description

Verfahren zur Herstellung eines Getriebes einer KUchen-Method for manufacturing a gearbox for a kitchen

maschine sowie nach diesem Verfahren hergestelltes Getriebe Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines Getriebes einer Küchenmaschine, welches auf feststehenden Achsen drehbar gelagerte Zahnräder hat, und gleichzeitig auf ein nach diesem Verfahren hergestelltes Getriebe.machine as well as gear manufactured according to this method The invention relates to a method for manufacturing a gear unit of a food processor, which has gears rotatably mounted on fixed axes, and at the same time on a gearbox manufactured according to this process.

Bislang hat man bei Küchenmaschinen die Zahnräder auf Achsen gelagert, welche ihrerseits in Lagerstellen eines Gehäuses befestigt wurden. Das Gehäuse wurde meist aus Druckguß erzeugt. Um exakte Achslagerungen zu erhalten, mußten zur Aufnahme der Achsen Löcher in Lagerstellen des Gehäuses gebohrt und anschließend durch Reiben auf ein genaues Maß gebracht werden. Dann wurden die Achsen mittels einer Presse in diese aufgeriebenen Bohrungen gepreßt.So far, the gears in kitchen machines have been stored on axles, which in turn were fastened in bearings in a housing. The case was mostly produced from die casting. In order to get exact axle bearings, had to be recorded of the axles holes are drilled in bearing points of the housing and then by rubbing be brought to an exact measure. Then the axes were made using a press pressed into these reamed holes.

Nachteilig bei dieser Herstellungsweise ist es, daß sehr viele Arbeitsgänge erforderlich sind, die teilweise sogar einzeln von Hand durchgeführt werden müssen.The disadvantage of this production method is that there are very many operations are required, some of which even have to be carried out individually by hand.

Der Erfindung liegt deshalb die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu entwickeln, welches im Vergleich zu dem bisherigen Verfahren wesentlich billiger ist. Weiterhin soll die Erfindung ein Getriebe aufzeigen, welches nach diesem Verfahren herstellbar ist.The invention is therefore based on the object of providing a method of to develop initially mentioned type, which in comparison to the previous method is much cheaper. Furthermore, the invention is to show a transmission which can be produced by this process.

Die erstgenannte Aufgabe wird erfindungsgemäß durch die im Anspruch 1 angegebenen Verfahrensschritte gelöst.The first-mentioned object is achieved according to the invention by the claims 1 specified process steps solved.

Die Vorteile der Erfindung liegen in erster Linie darin, daß in einem einzigen Arbeitsgang eine Platine erzeugbar ist, welche bereits mit Achsen, Abstandshaltern, Lagerstellen und dergleichen versehen ist. Da der gespritzte Kunststoff während des Abkühlens schrumpft, werden die Achsen in den sie umgebenden Lagerbuchsen zwangsläufig fest und sicher gehalten. Dadurch wird das zeitaufwendige Bohren und Reiben von Lagerstellen und Einpressen von Achsen unnötig.The advantages of the invention are primarily that in one a single work step, a board can be produced, which is already equipped with axes, spacers, Storage locations and the like is provided. Because the molded plastic during As the cooling process shrinks, the axes inevitably become in the bearing bushes surrounding them held firmly and securely. This eliminates the time consuming drilling and reaming of Bearing points and pressing in of axles unnecessary.

Fertigungstechnisch besonders günstig ist das Verfahren, wenn es - wie in Anspruch 2 angegeben - durchgeführt wird.In terms of manufacturing technology, the process is particularly favorable if it - as stated in claim 2 - is carried out.

Soll ein Getriebe für einen Fleischwolf hergestellt werden, in dem die Zahnräder in zwei Ebenen nebeneinander anzuordnen sind, dann benötigt man dazu normalerweise drei Platinen, kommt aber dank der im Anspruch 3 angegebenen Verfahrensweise mit zwei Formen für Platinen aus.Should a gear for a meat grinder be made in which the gears are to be arranged side by side in two planes, then you need this normally three boards, but comes thanks to the procedure specified in claim 3 with two forms for sinkers.

Das in den Ansprüchen 4 und 5 gekennzeichnete Getriebe ist vorteilhaft, weil es billig und einfach herstellbar, dennoch aber robust und haltbar ist.The transmission characterized in claims 4 and 5 is advantageous, because it is cheap and easy to manufacture, yet robust and durable.

Ganz besonders billig wird dieses Getriebe, wenn - wie im Anspruch 6 angegeben - zumindest ein Abstandshalter zugleich Lagerbuchse für eine Achse ist.This transmission is particularly cheap if - as in the claim 6 indicated - at least one spacer is also a bearing bush for an axle.

Zur Verdeutlichung des erfindungsgemäßen Verfahrens und zur Erläuterung des durch das Verfahren erzeugbaren Getriebes sei nunmehr anhand der Zeichnung ein Getriebe für einen Fleischwolf erläutert. Die Zeichnung zeigt dieses Getriebe im Schnitt.To clarify the method according to the invention and for explanation of the transmission that can be generated by the method is now based on the drawing Gearbox for a meat grinder explained. The drawing shows this transmission in Cut.

Das dargestellte Getriebe hat drei Blechplatinen 1, 2. und 3, zwischen denen beispielsweise Zahnräder 4, 5 und 6 gelagert sind. Die Zahnräder 4, 5, 6 sind drehbar auf Achsen 7, 8, 9 angeordnet. Jede der Achsen 7, 8, 9 ist in e ie-lagerbuchse 10, 11, 12 gehalten. Diese Lagerbuchsen 10, il, 12 sind an jeweils eine der Blechplatinen 1, 2, 3 angespritzt. So ist zum Beispiel die Lagerbuchse 10 an der Blechplatine 1 angespritzt.The transmission shown has three sheet metal plates 1, 2 and 3, between which, for example, gears 4, 5 and 6 are mounted. The gears 4, 5, 6 are rotatably arranged on axes 7, 8, 9. Each of the axes 7, 8, 9 is in a bearing bush 10, 11, 12 held. These bearing bushes 10, il, 12 are each attached to one of the sheet metal blanks 1, 2, 3 molded on. For example, the bearing bush 10 is on the sheet metal blank 1 molded on.

Ebenfalls auf jeweils einer Blechplatine 1, 2, 3 angespritzt sind Abstandhalter 13 bzw. 14, durch welche der genaue gegenseitige Abstand der Blechplatinen 1, 2, 3 festgelegt ist und in die zum Beispiel nicht dargestellte Schrauben zum Zusammenschrauben der Platinen eingeschraubt werden können.Also molded onto a sheet metal plate 1, 2, 3 each Spacers 13 and 14, through which the exact mutual spacing of the sheet metal blanks 1, 2, 3 is set and in the, for example, not shown screws for Screwing together the boards can be screwed.

Wie in der Zeichnung oben links zu erkennen ist, können die Lagerbuchsen 12 zugleich Abstandshalter 14 sein.As can be seen in the drawing at the top left, the bearing bushes can 12 be spacers 14 at the same time.

Obgleich das dargestellte Getriebe 3 Blechplatinen 1, 2 und 3 hat, kann man diese mit nur zwei Formen erzeugen, indem man die Blechplatinen 1 und 3 zunächst als eine einzige Blechplatine in einer Form mit Lagerbuchsen und Abstandshaltern spritzt und anschließend diese Blechplatine durchtrennt, so daß zwei Blechplatinen entstehen.Although the transmission shown has 3 sheet metal blanks 1, 2 and 3, you can create these with only two shapes by using sheet metal blanks 1 and 3 initially as a single sheet metal plate in a form with bearing bushes and spacers injected and then severed this sheet metal blank, so that two sheet metal blanks develop.

Zum besseren Verständnis der Gesamtanordnung ist in der Zeichnung ein Antriebsmotor 15 dargestellt., welcher über eine Welle 16 das Zahnrad 4 antreibt. Ein Kupplungsteil 17 dient dazu, eine nicht dargestellte Schnecke des Fleischwolfs aufzunehmen, so daß diese Schnecke angetrieben wird. LeerseiteFor a better understanding of the overall arrangement is in the drawing a drive motor 15 is shown, which drives the gear 4 via a shaft 16. A coupling part 17 is used to connect a screw (not shown) of the meat grinder take up so that this worm is driven. Blank page

Claims (6)

Ansprüche Verfahren zur Herstellung eines Getriebes einer Küchenmaschine, welches auf feststehenden Achsen drehbar gelagerte Zahnräder hat, gekennzeichnet durch folgende Verfahrensschritte a) an eine Blechplatine werden in einer Form und in einem Arbeitsgang Abstandshalter, Lagerbuchsen und sonstige Teile gespritzt, wobei zuvor Achsen in ihre richtige Position zu der Blechplatine in die Form eingebracht wurden, b) auf die fertige Blechplatine werden Zahnräder montiert, c) eine weitere Blechplatine wird auf die Abstandshalter befestigt, so daß die Zahnräder axial zwischen den Blechplatinen gehalten sind.Claims method for the production of a gearbox of a food processor, which has gears rotatably mounted on fixed axles by the following process steps a) to a sheet metal plate are in a form and Spacers, bearing bushes and other parts are injection-molded in one operation, with axes previously brought into their correct position in relation to the sheet metal blank in the mold were, b) gears are mounted on the finished sheet metal plate, c) another Sheet metal blank is attached to the spacer so that the gears are axially between the sheet metal blanks are held. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß an zwei verschiedenen Blechplatinen in zwei Formen Abstandshalter, Lagerbuchsen und dergleichen angespritzt werden, und diese Blechplatinen dann nach dem Montieren der Zahnräder miteinander verbunden werden. 2. The method according to claim 1, characterized in that two different sheet metal blanks in two forms spacers, bearing bushes and the like are molded, and then these sheet metal blanks after mounting the gears be connected to each other. 3. Verfahren nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß eine Blechplatine nach dem Anspritzen der Abstandshalter, Lagerbuchsen und dergleichen in zwei Teile getrennt wird und jeder Blechplatinenteil auf eine Seite einer anderen Blechplatine geschraubt wird. 3. The method according to claims 1 or 2, characterized in that that a sheet metal plate after the injection molding of the spacers, bearing bushes and the like is separated into two parts and each sheet metal part on one side of another Sheet metal plate is screwed. 4. Getriebe für eine Küchenmaschine, welches auf feststehenden Achsen drehbar gelagerte Zahnräder hat, dadurch gekennzeichnet, da)3 die Achsen (7, 8, 9) in Lagerbuchsen (10, 11, 12) gelagert sind, welche ihrerseits ebenso wie Abstandshalter (13, 14) und sonstige Bauteile an Blechplatinen (1, 2, 3) angespritzt sind.4. Gear for a food processor, which is on fixed axes has rotatably mounted gears, characterized in that) 3 the axes (7, 8, 9) are mounted in bearing bushes (10, 11, 12), which in turn, as well as spacers (13, 14) and other components are molded onto sheet metal plates (1, 2, 3). 5. Getriebe nach Anspruch 4, dadurch gekennzeichnet, daß es aus insgesamt drei Blechplatinen (1, 2, 3) besteht, von denen zwei (1, 3) durch Durchtrennen einer in einem Arbeitsgang erzeugten Blechplatine hergestellt wurde.5. Transmission according to claim 4, characterized in that it consists of a total of consists of three sheet metal plates (1, 2, 3), two of which (1, 3) by cutting through one sheet metal blank was produced in one operation. 6. Getriebe nach den Ansprüchen 4 oder 5, dadurch gekennzeichnet, daß zumindest ein Abstandhalter (14) zugleich Lagerbuchse (12) für eine Achse ist.6. Transmission according to claims 4 or 5, characterized in that that at least one spacer (14) is also a bearing bush (12) for an axle.
DE19813119833 1981-05-19 1981-05-19 Method for the production of a transmission for a kitchen appliance Withdrawn DE3119833A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19813119833 DE3119833A1 (en) 1981-05-19 1981-05-19 Method for the production of a transmission for a kitchen appliance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813119833 DE3119833A1 (en) 1981-05-19 1981-05-19 Method for the production of a transmission for a kitchen appliance

Publications (1)

Publication Number Publication Date
DE3119833A1 true DE3119833A1 (en) 1983-01-05

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ID=6132663

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19813119833 Withdrawn DE3119833A1 (en) 1981-05-19 1981-05-19 Method for the production of a transmission for a kitchen appliance

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821186A2 (en) * 1996-07-22 1998-01-28 Lexmark International, Inc. Frame with molded features

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6911557U (en) * 1969-03-22 1969-09-18 Licentia Gmbh TRANSMISSION GEAR
DE1809462A1 (en) * 1968-04-16 1969-10-23 Ruhla Uhren Veb K Drive unit with motor and gear, especially for precision engineering
DE6941182U (en) * 1969-10-21 1970-02-05 Ernst Tesch Kg Fa BEARING HOUSING FOR FINE GEARS
DE7015218U (en) * 1970-04-24 1970-10-22 Gruner & Co Gmbh SMALL GEAR.
DE2142797A1 (en) * 1971-08-26 1973-03-01 Siemens Ag PRECISION GEAR, IN PARTICULAR DRIVE FOR SLIDING CLOCKS
DE2914592A1 (en) * 1978-04-11 1979-10-18 Hitachi Ltd Compound article for supporting telecommunication elements - has metallic plate provided with bores serving for joining flanges made of plastic, esp. polyacetal
DE3045638A1 (en) * 1979-12-24 1981-09-17 Kabushiki Kaisha Sankyo Seiki Seisakusho, Suwa, Nagano METHOD AND MOLDING DEVICE FOR MANUFACTURING GEAR GEARS WITH GEAR PAIRS

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1809462A1 (en) * 1968-04-16 1969-10-23 Ruhla Uhren Veb K Drive unit with motor and gear, especially for precision engineering
DE6911557U (en) * 1969-03-22 1969-09-18 Licentia Gmbh TRANSMISSION GEAR
DE6941182U (en) * 1969-10-21 1970-02-05 Ernst Tesch Kg Fa BEARING HOUSING FOR FINE GEARS
DE7015218U (en) * 1970-04-24 1970-10-22 Gruner & Co Gmbh SMALL GEAR.
DE2142797A1 (en) * 1971-08-26 1973-03-01 Siemens Ag PRECISION GEAR, IN PARTICULAR DRIVE FOR SLIDING CLOCKS
DE2914592A1 (en) * 1978-04-11 1979-10-18 Hitachi Ltd Compound article for supporting telecommunication elements - has metallic plate provided with bores serving for joining flanges made of plastic, esp. polyacetal
DE3045638A1 (en) * 1979-12-24 1981-09-17 Kabushiki Kaisha Sankyo Seiki Seisakusho, Suwa, Nagano METHOD AND MOLDING DEVICE FOR MANUFACTURING GEAR GEARS WITH GEAR PAIRS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821186A2 (en) * 1996-07-22 1998-01-28 Lexmark International, Inc. Frame with molded features
EP0821186A3 (en) * 1996-07-22 2000-04-05 Lexmark International, Inc. Frame with molded features

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