DE909520C - Motor drive for sewing machines - Google Patents

Motor drive for sewing machines

Info

Publication number
DE909520C
DE909520C DEE6115A DEE0006115A DE909520C DE 909520 C DE909520 C DE 909520C DE E6115 A DEE6115 A DE E6115A DE E0006115 A DEE0006115 A DE E0006115A DE 909520 C DE909520 C DE 909520C
Authority
DE
Germany
Prior art keywords
motor drive
sewing machines
cord
chains
brackets
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
DEE6115A
Other languages
German (de)
Inventor
Erich Elbracht
Erwin Elbracht
Werner Elbracht
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.)
WILHELM ELBRACHT FA
Original Assignee
WILHELM ELBRACHT FA
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
Priority claimed from DEE4659A external-priority patent/DE873034C/en
Application filed by WILHELM ELBRACHT FA filed Critical WILHELM ELBRACHT FA
Priority to DEE6115A priority Critical patent/DE909520C/en
Application granted granted Critical
Publication of DE909520C publication Critical patent/DE909520C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B69/00—Driving-gear; Control devices
    • D05B69/10—Electrical or electromagnetic drives
    • D05B69/12—Electrical or electromagnetic drives using rotary electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Description

In dem Patent 873 034 ist ein Motorantrieb für Nähmaschinen beschrieben, bei dem Schnurkettenräder und Schnurketten verwendet werden.In the patent 873 034 a motor drive for sewing machines is described in which cord sprockets and cord chains can be used.

Es hat sich nun herausgestellt, daß diese Übertragungsmittel bei der großen Tourenzahl der Nähmaschine erhebliche Geräusche verursachen, die bei diesen Maschinen besonders lästig und unangenehm sind.It has now been found that this transmission medium cause considerable noises with the large number of revolutions of the sewing machine these machines are particularly annoying and uncomfortable.

Dieser Übelstand wird dadurch wesentlich gemildert, daß die Nuten der Schnurkettenräder und die Klammern der Schnurketten schräg angeordnet sind. Während bisher die Klammern der Schnurketten in ihrer ganzen Breite auf das Metall der Schnurkettenräder auf einmal aufstoßen und damit erhebliche Geräusche verursachen, tritt durch die Schrägverzahnung ein allmähliches Abrollen bzw. Abwälzen der Klammern der Schnurketten auf den Schnurkettenrädern ein, wodurch die Geräusche wesentlich geringer werden.This drawback is significantly alleviated that the grooves of the cord sprockets and the brackets of the cord chains are arranged at an angle. While so far the brackets of the cord chains bump into the metal of the chain sprockets in their full width at once and with it cause considerable noises, the helical teeth cause gradual rolling or rolling. Rolling the brackets of the cord chains on the cord sprockets, making the noise will be much lower.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.An exemplary embodiment of the invention is shown in the drawing.

Die Klammern i der Schnurketten η sowie die entsprechenden Nuten in den Schnurkettenrädern sind erfindungsgemäß schräg angeordnet, so daß sie beim Auftreffen allmählich in Berührung geraten, wodurch die Geräusche wesentlich geringer sind als bei der geraden Anordnung.The brackets i of the cord chains η as well as the corresponding grooves in the cord chain wheels are arranged obliquely according to the invention so that they gradually come into contact when they hit, whereby the noises are much lower than in the straight arrangement.

Claims (1)

Patentanspruch:Claim: Motorantrieb für Nähmaschinen nach Patent 873 034, dadurch gekennzeichnet, daß die Nuten der Schnurkettenräder und die Klammern (t) der Schnurketten schräg angeordnet sind.Motor drive for sewing machines according to patent 873 034, characterized in that the grooves the cord sprockets and the brackets (t) of the cord chains are arranged at an angle. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEE6115A 1951-11-20 1952-10-07 Motor drive for sewing machines Expired DE909520C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEE6115A DE909520C (en) 1951-11-20 1952-10-07 Motor drive for sewing machines

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEE4659A DE873034C (en) 1951-11-20 1951-11-20 Motor drive for sewing machines
DEE6115A DE909520C (en) 1951-11-20 1952-10-07 Motor drive for sewing machines

Publications (1)

Publication Number Publication Date
DE909520C true DE909520C (en) 1954-04-22

Family

ID=25972844

Family Applications (1)

Application Number Title Priority Date Filing Date
DEE6115A Expired DE909520C (en) 1951-11-20 1952-10-07 Motor drive for sewing machines

Country Status (1)

Country Link
DE (1) DE909520C (en)

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