DE885279C - Electric hand motor - Google Patents

Electric hand motor

Info

Publication number
DE885279C
DE885279C DESCH7614A DESC007614A DE885279C DE 885279 C DE885279 C DE 885279C DE SCH7614 A DESCH7614 A DE SCH7614A DE SC007614 A DESC007614 A DE SC007614A DE 885279 C DE885279 C DE 885279C
Authority
DE
Germany
Prior art keywords
electric hand
hand motor
individual
frequency
motor
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
Application number
DESCH7614A
Other languages
German (de)
Inventor
Walter Dipl-Ing Wezel
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.)
Schmid and Wezel GmbH and Co
Original Assignee
Schmid and Wezel GmbH and Co
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 Schmid and Wezel GmbH and Co filed Critical Schmid and Wezel GmbH and Co
Priority to DESCH7614A priority Critical patent/DE885279C/en
Application granted granted Critical
Publication of DE885279C publication Critical patent/DE885279C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H02K7/145—Hand-held machine tool

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Description

Elektrische- Handmotoren, insbesondere solche für ,Gleich- und Wechselstrom (Universalmotowen), welche Kollektoren haben, verlangen als Einzelaggregate einen größeren Durchmesser als dies für gewisse Elektrowerkzeuge erwünscht ist. Um eine ausreichende Leistung bei kleinem Außendurchmesser zu erreichen, sind bei kollektoxlasen Aggregaten (Wechselstrom) Ausführungen bekanntgeworden, bei welchen eine Anzahl von Einzelaggregaten in einem Handgriff untergebracht sind.Electric hand motors, in particular those for direct and alternating current (Universal motors), which have collectors, require a single unit larger diameter than is desirable for certain power tools. To a Achieving sufficient performance with a small outer diameter is possible with collective oxides Aggregates (alternating current) versions become known in which a number of individual units are housed in one handle.

Es wird vorgeschlagen, auch für elektrische Handwerkzeuge derartige zusammengesetzte Klein.-aggregate, insbesondere für Hochfrequenz, zu verwenden, da Höchfrequenzmotoren mit ihrer hohen Drehzahl zu größeren Leistungeln wie Universalmotoren befähigt sind. Außerdem haben Hochfrequenzmotoren den Vorteil, .daß siel bei Belastung in :der Drehzahl nicht zurückgehen, so wie dies bei Universalmotoren der Fall ist. -Infolge des verlangten kleinen Durchmessers; welcher zwischen 40 und 45 mrn liegen muß, wird die Spindel des beweglichen Teils dieser Aggregate verhältnismäßig .dünn ausfallen.It is proposed that such tools also be used for electric hand tools to use assembled small aggregates, especially for high frequency, because high-frequency motors with their high speed lead to higher outputs such as universal motors are capable. In addition, high-frequency motors have the advantage that they fall under load in: the speed does not decrease, as is the case with universal motors. -As a result of the required small diameter; which are between 40 and 45 mrn must, the spindle of the moving part of these units is relatively thin fail.

Erfindungsgemäß wird vorgeschlagen, die Spindel jeweils auch zwischen, zwei benachbarten Aggregaten zu lagern. Dies kann am besten dadurch erfolgen; däß die einzelnen Aggregate lediglich in eine Hülse geschoben werden und die Spin..delverb.i.ndung unter sich, beispielsweise durch Klauen, erfolgt.According to the invention, it is proposed that the spindle also between, to store two adjacent units. This can best be done by; that the individual units are simply pushed into a sleeve and the Spin..delverb.i.ndung among themselves, for example by clawing.

Aus der Zeichnung ist die Zusammensetzung eines Handmotors A mit beispielsweise drei Aggregaten i, 2 und 3 zu ersehen. Die Kurzschlußlärafer q., 5 und 6 sind auf einer verhältnismäßig dünnen Spindel 7, welche zur Vermeidung ges Durchbiegens auf den Lagern 8 und 9 abgestützt ist und auf -den Hauptlagern io und z i läuft. Um. die Spindel? recht .dünn halten zu können; wird sie jeweils zwischen. .den Aggregaten unterteilt. Die Kupplung erfolgt durch Klauen 12 und 13. Die einzelnen Aggregate in ihrer Gesamtheit können in die Hülse des Handgriffs eingeschoben werten.From the drawing is the composition of a hand motor A with, for example three aggregates i, 2 and 3 can be seen. The Kurzschlusslärafer q., 5 and 6 are on a relatively thin spindle 7, which to avoid sagging up the bearings 8 and 9 is supported and runs on the main bearings io and z i. Around. the spindle? to be able to keep quite thin; it will be between. .the aggregates divided. The coupling is done by claws 12 and 13. The individual units in their entirety can be inserted into the sleeve of the handle.

Zusammengesetzte Handmotoren nach vorliegender Erfindung können verwendet werden für Handkraftwerkzeuge, bei welchen es wichtig ist, daß der Durchmesser des Motors so. klein wie möglich bleibt und trotzdem eine verhältnismäßig große Leistung erreicht wird. Neben der vorgesehenen Verwendung für Hochfrequenz soll erfindungsgemäß im Schutz noch eingeschlossen sein der Bau. derartiger Aggregate für Drehstrom und Wechselstrom.Compound hand motors according to the present invention can be used are used for handheld power tools, where it is important that the diameter of the Motors like that. remains as small as possible and still a relatively large achievement is achieved. In addition to the intended use for high frequency, according to the invention still be enclosed in the shelter of the construction. such units for three-phase and Alternating current.

Claims (3)

PATENTANSPRÜCHE: i. Elektrischer Handmotor, insbesondere für Hochfrequenz, bestehend aus einer größeren Anzahl einzelner Aggregate, .dadurch gekennzeichnet, daß zwischen jeden Antriebsmotor ein Lager eingebaut wird, damit eine möglichst dünne Antriebsweile verwendet werden kann. PATENT CLAIMS: i. Electric hand motor, especially for high frequency, consisting of a larger number of individual units, characterized by that a bearing is installed between each drive motor, so that one as possible thin drive shaft can be used. 2. Elektrischer Handmotor nach Anspruch i, dadurch -gekennzeichnet, daß die durchgehende dünne Achse in verschiedene Einzelachsen aufgeteilt wird, in der Weise, daß sich innerhalb der Innenlager Klauen befinden; welche den leichten Ein- und Ausbau der einzelnen kompletten Elemente ermöglichen. 2. Electric hand motor according to claim i, characterized in that the continuous thin axis in different individual axes is divided in such a way that there are claws inside the bottom bracket; which allow easy installation and removal of the individual complete elements. 3. Elektrischer Handmotor nach Anspruch i und 2, dadurch gekennzeichnet, daß die einzelnen Motorantriebe außer für Hochfrequenz auch für Dreh- und Wechselstrom gebaut sein können. Angezogene Druckschriften: Deutsche Patentschrift Nr. 142 66o; schweizerische Patentschrift Nr. 258 q.18.3. Electric hand motor according to claim i and 2, characterized in that the individual motor drives are built for three-phase and alternating current in addition to high-frequency could be. Cited publications: German patent specification No. 142 66o; Swiss Patent No. 258 q.18.
DESCH7614A 1951-09-28 1951-09-28 Electric hand motor Expired DE885279C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DESCH7614A DE885279C (en) 1951-09-28 1951-09-28 Electric hand motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DESCH7614A DE885279C (en) 1951-09-28 1951-09-28 Electric hand motor

Publications (1)

Publication Number Publication Date
DE885279C true DE885279C (en) 1953-08-03

Family

ID=7425442

Family Applications (1)

Application Number Title Priority Date Filing Date
DESCH7614A Expired DE885279C (en) 1951-09-28 1951-09-28 Electric hand motor

Country Status (1)

Country Link
DE (1) DE885279C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998024166A1 (en) * 1996-11-22 1998-06-04 Welltec Aps Long electrical motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE142660C (en) *
CH258418A (en) * 1941-06-24 1948-11-30 Mozzanini Georges Gabriel Motor group comprising mechanically coupled direct current motors and means for adjusting the speed by the field.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE142660C (en) *
CH258418A (en) * 1941-06-24 1948-11-30 Mozzanini Georges Gabriel Motor group comprising mechanically coupled direct current motors and means for adjusting the speed by the field.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998024166A1 (en) * 1996-11-22 1998-06-04 Welltec Aps Long electrical motor
AU718449B2 (en) * 1996-11-22 2000-04-13 Welltec Aps Long electrical motor

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