Sewing – Special machines – Article attaching
Patent
1981-12-14
1984-08-14
Hunter, H. Hampton
Sewing
Special machines
Article attaching
112114, D05B 314
Patent
active
044650027
ABSTRACT:
A button-sewing machine (1) comprises a needlebar frame (6), which is suspended like a pendulum and connected to a rocking linkage (8). A button-holding clamp (5) is tiltably mounted in a stand (4), which is carried by a base plate (3), which is mounted on the machine base (2) and longitudinally displaceable relative to said machine base and longitudinally reciprocable by an actuating head (9). The latter is operatively connected to the main shaft of the machine.
The machine can be used to perform several different working programs without an alteration of the machine. For this purpose the stand (4) is transversely movable relative to the baseplate (3) or the baseplate (3) is adapted to perform relative to the machine base (2) not only a longitudinal displacement but also a transverse angular movement. A coupling element (19) is provided, which is operable to selectively couple the actuating head (9) either to the baseplate (3) or to the rocking linkage (8) of the needlebar frame (6). Separate positioning drives (22, 23, 28) are provided for displacing the stand (4) or for imparting a transverse angular movement to the baseplate (3), for tilting the button-holding clamp (5) and for actuating the coupling element (19). These positioning drives are adapted to be energized and de-energized in response to the number of revolutions of the mainshaft of the machine or the number of stitches. Said numbers can be determined by control programs.
REFERENCES:
patent: 2131387 (1938-09-01), Pikul
patent: 3381638 (1968-05-01), Pope
patent: 3858536 (1975-01-01), Pope
Hunter H. Hampton
Kelman Kurt
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