Thread tension device with latch for a sewing machine

Details Thread tension device with latch for a sewing machine Thread tension device with latch for a sewing machine

1995-10-12

1996-07-09

Izaguirre, Ismael

Sewing

Elements

Tensioning

D05B 4702

Patent

active

055334601

ABSTRACT:
A thread tension device includes a pair of discs engaged on a shaft and a spring for biasing the discs to clamp a thread. A follower is threadedly engaged on the shaft for adjusting the spring. A barrel is engaged with the follower so as to rotate the follower. A cap is rotatably engaged on the barrel. A latch is slidably engaged in the barrel for engaging the barrel with the cap so as to allow the barrel and the cap to rotate in concert when the latch is engaged with the cap. The barrel is allowed to rotate freely relative to the cap when the latch is disengaged from the cap.

REFERENCES:
patent: 3150846 (1964-09-01), Laidig
patent: 5156105 (1992-10-01), Wang
patent: 5191847 (1993-03-01), Kojima et al.
patent: 5211122 (1993-05-01), Lin

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