AT74456B - Device for overcoming the dead center of sewing machines u. like - Google Patents
Device for overcoming the dead center of sewing machines u. likeInfo
- Publication number
- AT74456B AT74456B AT74456DA AT74456B AT 74456 B AT74456 B AT 74456B AT 74456D A AT74456D A AT 74456DA AT 74456 B AT74456 B AT 74456B
- Authority
- AT
- Austria
- Prior art keywords
- dead center
- overcoming
- sewing machines
- springs
- rod
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/48463—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond
- H01L2224/48465—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a ball bond the other connecting portion not on the bonding area being a wedge bond, i.e. ball-to-wedge, regular stitch
Landscapes
- Sewing Machines And Sewing (AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
Die Erfindung betrifft eine Vorrichtung zur Überwindung des Totpunktes bei Nähmaschinen und ähnlich angetriebenen Maschinen, wodurch derartige Maschinen am Totpunkte nicht stehen bleiben und das Anlassen der Maschinen keine Handhilfe erfordert, indem dies jederzeit mittels Fusstrieb erfolgt, so dass man während der Arbeit nicht die eine Hand vom Werkstück wegnehmen muss.
Erfindungsgemäss besteht die Vorrichtung darin, dass zwei gegenüberliegende Stellen des Fusstrittes unter Vermittlung von mit Federn ausgestatteten Stangen mit einem an der Antriebsstange gelagerten zweiarmigen Hebel verbunden sind, so dass beim Auf-und Niederbewegen der Stangen die Federn entsprechend der Bewegungsrichtung gespannt bzw. gelockert werden, wodurch der Antriebswelle jederzeit über den Totpunkt binübergeholfen wird.
Die Erfindung ist in der Zeichnung beispielsweise dargestellt, und zwar in ihrer Anwendung an einer Nähmaschine in schaubildlicher Ansicht.
Der im Maschinengestelle a gelagerte Fusstritt b ist in üblicher Weise mittels der Antriebsstange e mit der das Rad j tragenden Welle I gekuppelt. Am oberen Ende der Stange c ist ein zweiarmiger Hebel d befestigt, dessen freie Enden mit an zwei gegenüberliegenden Punkten
EMI1.2
befestigten Hebels f verbunden, während der andere Hebelarm der Stange 9 mit dem Vor- sprung o gekuppelt ist Während des Betriebes wird beim Autwärtagehen der Stange g auch der mit dieser Stange verbundene Arm des Hebels f seine obere Lage erreichen und gleichzeitig der andere Hebelarm in die untere Stellung gelangen, so dass die Feder h zusammengedrückt und die zwischen dem Hebel d-und der Stange a ? eingeschaltete Feder i gespannt wird,
wodurch der Welle ! selbsttätig über den oberen Totpunkt hinübergeholfen wird. Beim Niederdrücken des Tritteä in der entgegengesetzten Richtung wird die Feder i gelockert und die Bjder A gespannt, wodurch die Welle den unteren Totpunkt überwindet.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
EMI1.1
The invention relates to a device for overcoming the dead center in sewing machines and similarly driven machines, whereby such machines do not stop at the dead center and starting the machine does not require any manual assistance by doing this at any time by means of a foot drive, so that one does not use one hand during work must take away from the workpiece.
According to the invention, the device consists in that two opposite points of the foot step are connected to a two-armed lever mounted on the drive rod by means of rods equipped with springs, so that when the rods are moved up and down the springs are tensioned or loosened according to the direction of movement whereby the drive shaft is always helped over the dead center.
The invention is shown in the drawing, for example, in its application on a sewing machine in a perspective view.
The footstep b mounted in the machine frame a is coupled in the usual way to the shaft I carrying the wheel j by means of the drive rod e. At the upper end of the rod c a two-armed lever d is attached, the free ends of which at two opposite points
EMI1.2
attached lever f, while the other lever arm of the rod 9 is coupled to the projection o During operation, when the rod g moves forward, the arm of the lever f connected to this rod will also reach its upper position and at the same time the other lever arm into the reach the lower position so that the spring h is compressed and that between the lever d and the rod a? switched on spring i is tensioned,
whereby the wave! is automatically helped over the top dead center. When the step is depressed in the opposite direction, the spring i is loosened and the Bjder A is tensioned, whereby the shaft overcomes the bottom dead center.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT74456T | 1915-11-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT74456B true AT74456B (en) | 1918-07-25 |
Family
ID=3596123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT74456D AT74456B (en) | 1915-11-25 | 1915-11-25 | Device for overcoming the dead center of sewing machines u. like |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT74456B (en) |
-
1915
- 1915-11-25 AT AT74456D patent/AT74456B/en active
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