JPH01127579U - - Google Patents

Description

[Brief explanation of the drawing]

1 to 16 relate to embodiments of the present invention,
Fig. 1a is an explanatory diagram of the needle receiver device, Fig. 1b is an explanatory diagram of its assembled state, Fig. 2 is an explanatory diagram of the mechanism of the overlock sewing machine, and Fig. 3 is an explanation of the movement curves of the needle, upper looper, and lower looper. Figures 4 to 6 are explanatory diagrams of the intersecting state of the needle and the lower looper, Figs. 7 and 8 are explanatory diagrams of the intersecting state of the needle and the front needle receiver, and Fig. 9 is an explanatory diagram of the intersecting state of the needle and the front needle. Fig. 10 is a view in the direction of arrow F, Figs. 11 and 12 are explanatory views of the intersecting state of the needle and the front needle receiver in another embodiment, Fig. 13
The figure is a view taken in the direction of arrow H in FIG. Fig. 17 is an explanatory diagram of the overlock needle and stitches in the conventional example, Figs. 18 and 19 are explanatory diagrams of needle bending, and Fig. 20 is an explanatory diagram of the conventional front needle receiver. The looper 22 is a front needle guard.

Claims (1)

[Scope of utility model registration request] In an overlock sewing machine, the needle is equipped with a needle that holds needle thread and moves up and down through a needle hole in a needle plate from an upper front in a feed direction to a lower front in a feed direction, and at least one looper that cooperates with the needle. Located below the plate, it is a position that guides the needle when the looper captures the needle thread, and is a position that is separated from the needle from when the needle tip reaches the throat plate until it reaches the lowest position of the needle when the needle is lowered. A needle guard device for overlock sewing machines equipped with a front needle guard that operates automatically.