CH240444A - Sewing machine with free sewing arm and gripper arranged in the same. - Google Patents
Sewing machine with free sewing arm and gripper arranged in the same.Info
- Publication number
- CH240444A CH240444A CH240444DA CH240444A CH 240444 A CH240444 A CH 240444A CH 240444D A CH240444D A CH 240444DA CH 240444 A CH240444 A CH 240444A
- Authority
- CH
- Switzerland
- Prior art keywords
- gripper
- sewing
- arm
- shaft
- sewing machine
- Prior art date
Links
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Description
Nähmaschine mit freiem Näharm und in demselben angeordnetem Greifer. Vorliegende Erfindung bezieht sich auf eine Nähmaschine mit freiem Näharm und in demselben angeordnetem Greifer.
Gemäss der Erfindung ist die Greiferge- häusewelle senkrecht zu der den Näharm in seiner Längsrichtung durchsetzende Haupt antriebswelle liegend, drehbar gelagert und von der letzteren über Zahnräder angetrieben.
In der beiliegenden Zeichnung ist eine beispielsweise Ausführungsform des Erfin dungsgegenstandes dargestellt, und zwar zeigt sie einen Längsschnitt durch das vordere Ende des freien Näharmes. Nach der Zeich nung ist die horizontal verlaufende, den freien Greiferarm 1 in seiner Längsrichtung durchsetzende Hauptwelle 2 in einem Quer arm 3 drehbar gelagert. In dem selben Arm 3 und der Wandung des Greiferarmes ist eine Welle 4 angeordnet, welche ein mit einem auf der Hauptwelle 2 befestigten Winkel zahnrad 5 in Eingriff stehendes Winkelzahn rad 6 trägt, sowie ein Stirnzahnrad 7, das mit einem Stirnzahnrad 8 kämmt, das auf der Greifergehäusewelle 9 sitzt.
Die Greifer- gehäusewelke ist in einem Arm 10 und der Wandung des Greiferarmes drehbar gelagert und trägt das Greifergehäuse 11, welches mittels einer Schraube 12 auswechselbar an der Greifergehäusewelle 9 befestigt ist. Die Schraube 12 durchsetzt eine achsiale Bohrung in der (-rreifergehäusewelle, welche Bohrung mit einer konzentrischen Erweiterung ver sehen ist, in welcher ein Zapfen 13 am Grei- fergehäuse liegt.
Der Zapfen 13 besitzt einen abgeplatteten Fortsatz 14, welcher in einer entsprechenden, im Querschnitt rechteckigen Ausnehmung der Greifergehäusewelle 9 liegt.
Die Greifergehäusewelle 9 könnte auch eine im Querschnitt halbkreisförmige Aus- nehmung aufweisen und das Ende des Zapfens 13 mit einem im Querschnitt ebenfalls halb kreisförmigen Fortsatz versehen sein. Dieser Fortsatz ist dabei in die Ausnehmung ein gepasst.
Auf diese Weise ist die Lage des Greifer gehäuses in der Greifergehäusewelle eindeutig bestimmt, so dass ein Auswechseln desselben jederzeit leicht bewerkstelligt werden kann. Das übersetzungsverhältnis zwischen den Winkelrädern 5 und 6 beträgt 2 : 1, während die Stirnräder 7 und 8 gleichen Durchmesser aufweisen. Auf diese Weise dreht die Greifer gehäusewelle für jede Umdrehung der Haupt antriebswelle 2 zweimal um.
Sewing machine with free sewing arm and gripper arranged in the same. The present invention relates to a sewing machine with a free sewing arm and a gripper arranged in the same.
According to the invention, the gripper housing shaft is perpendicular to the main drive shaft which penetrates the sewing arm in its longitudinal direction, is rotatably mounted and is driven by the latter via gear wheels.
In the accompanying drawing an example embodiment of the invention is shown, namely it shows a longitudinal section through the front end of the free sewing arm. According to the drawing voltage, the horizontally extending, the free gripper arm 1 penetrating in its longitudinal direction main shaft 2 in a cross arm 3 is rotatably mounted. In the same arm 3 and the wall of the gripper arm, a shaft 4 is arranged, which carries a gear wheel with a fixed on the main shaft 2 angle 5 engaging angular gear 6, and a spur gear 7 which meshes with a spur gear 8 that on the hook housing shaft 9 is seated.
The gripper housing sheet is rotatably mounted in an arm 10 and the wall of the gripper arm and carries the gripper housing 11, which is fastened to the gripper housing shaft 9 in an exchangeable manner by means of a screw 12. The screw 12 passes through an axial hole in the gripper housing shaft, which hole is provided with a concentric widening in which a pin 13 is located on the gripper housing.
The pin 13 has a flattened extension 14 which lies in a corresponding recess of the gripper housing shaft 9, which is rectangular in cross section.
The gripper housing shaft 9 could also have a recess which is semicircular in cross section and the end of the pin 13 could be provided with an extension which is also semicircular in cross section. This extension is fitted into the recess.
In this way, the position of the gripper housing in the gripper housing shaft is clearly determined, so that the same can be easily replaced at any time. The transmission ratio between the angle gears 5 and 6 is 2: 1, while the spur gears 7 and 8 have the same diameter. In this way, the gripper housing shaft rotates for each revolution of the main drive shaft 2 twice.
Claims (1)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH246416T | 1945-06-14 | ||
CH240444T | 1945-06-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH240444A true CH240444A (en) | 1945-12-31 |
Family
ID=25728512
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH240444D CH240444A (en) | 1945-06-14 | 1944-08-09 | Sewing machine with free sewing arm and gripper arranged in the same. |
CH246416D CH246416A (en) | 1945-06-14 | 1945-06-14 | Sewing machine with free sewing arm and gripper arranged in the same. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH246416D CH246416A (en) | 1945-06-14 | 1945-06-14 | Sewing machine with free sewing arm and gripper arranged in the same. |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE460035A (en) |
CH (2) | CH240444A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1031099B (en) * | 1955-06-16 | 1958-05-29 | Anker Werke Ag | Sewing machine with transverse, free running hook |
-
0
- BE BE460035D patent/BE460035A/xx unknown
-
1944
- 1944-08-09 CH CH240444D patent/CH240444A/en unknown
-
1945
- 1945-06-14 CH CH246416D patent/CH246416A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1031099B (en) * | 1955-06-16 | 1958-05-29 | Anker Werke Ag | Sewing machine with transverse, free running hook |
Also Published As
Publication number | Publication date |
---|---|
CH246416A (en) | 1946-12-31 |
BE460035A (en) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102004049365A1 (en) | Production process for rack involves making ball thread and toothed segment in single clamping of workpiece in machine tool | |
DE1500915B1 (en) | Locking device for form-fitting, non-rotatable connection of two components | |
DE1231055B (en) | Rotary piston internal combustion engine in trochoid design | |
CH240444A (en) | Sewing machine with free sewing arm and gripper arranged in the same. | |
DE69914698T2 (en) | Crown gear assembly, especially for aircraft | |
DE2122691A1 (en) | Setting device with absolute position indicator, in particular for setting the feed path of tool carriers in machine tools | |
DE642405C (en) | Device for the axial adjustment of the drive pinion of differential gears in motor vehicles | |
CH250992A (en) | Gear transmission | |
DE491675C (en) | Elevator device and pointer setting device | |
AT149255B (en) | Device for the axial adjustment of the drive pinion of differential gears in motor vehicles. | |
DE102004006125B3 (en) | Tangential thread rolling head comprises a bushing having a fine thread section on its periphery that interacts with an internal thread section in a receiving bore for a pinion and the bushing | |
DE532034C (en) | Thread feeding device on circular knitting machines | |
DE739012C (en) | Self-locking differential gear, especially for motor vehicles | |
CH307728A (en) | Electric screwdriver. | |
DE628635C (en) | Device for driving the charging compressor of an internal combustion engine | |
DE1530565C3 (en) | Drive arrangement for several driven axles of vehicles | |
CH314420A (en) | Device for attaching and tightening a machine part to another machine part | |
DE558271C (en) | Device for rotating two shafts connected to one another by a worm and a worm wheel and adjustable by means of a differential gear | |
DE631493C (en) | A work machine is driven by a gear motor | |
DE722313C (en) | Hiding device operated mechanically from the machine stand | |
DE1611195C3 (en) | ||
DE492919C (en) | Device for producing a double ignition in place of the existing battery ignition | |
DE562726C (en) | Introduction of an artificial dead corridor | |
DE871206C (en) | Reversible tachometer | |
DE861363C (en) | Angled bevel gear for valve seat grinding machines |