Sewing apparatus including automatic bobbin reloading
OwnerBar-Cochva Mardix, Yaacov Sadeh +1inventors
InventorsBar-Cochva Mardix, Yaacov Sadeh, Yaacov Makover
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Abstract
Sewing apparatus comprises a sewing needle, a bobbin for feeding thread to the sewing needle, a rotary housing containing the bobbin and its case a sensor for sensing the non-feeding of thread to the sewing needle; an extraction-reloading device automatically effective, upon sensing the non-feeding of the thread to the sewing needle, for first extracting the bobbin and its case from the rotary housing, then extracting the bobbin from its case, then reloading the case with another bobbin having a supply of thread thereon and then returning the case with its reloaded bobbin into the rotary housing.
Claims17
Sewing apparatus comprising:
- a reciprocating sewing needle;
- a bobbin within a case for feeding thread to the sewing needle, said bobbin and its case being disposed within a rotary housing which is rotated in synchronism with the reciprocations of the sewing needle;
- sensor means for sensing a non-feeding of thread to the sewing needle;
- and
- extraction-reloading means automatically effective upon sensing the non-feeding of the thread to the sewing needle, for first extracting the bobbin and its case from the rotary housing, then extracting the bobbin from its case, then reloading the case with another bobbin having a supply of thread thereon and then returning the case with its reloaded bobbin into said rotary housing.
Sewing apparatus comprising:
- a reciprocating sewing needle;
- a bobbin within a case for feeding thread to the sewing needle;
- said bobbin and its case being disposed within a rotary housing which is rotated in synchronism with the reciprocations of the sewing needle;
- sensor means for sensing a non-feeding of thread to the sewing needle;
- and
- extraction-reloading means automatically effective, upon sensing the non-feeding of the thread to the sewing needle, for first extracting the bobbin and its case from the rotary housing, then extracting the bobbin from its case, then reloading the case with another bobbin having a supply of thread thereon and then returning the case with its reloaded bobbin into said rotary housing;
- and
- a bobbin rewinder including a first station for receiving the bobbin extracted by the extraction-reloading means, a second station for holding a rewound bobbin containing a supply of thread thereon to be used in automatically reloading the sewing apparatus, means for shifting the extracted bobbin from said first station to said second station, and thread rewinding means at said second station for rewinding a supply of thread on the bobbin in said second station.
Dependencies are inferred from the claim text.