JPH01127579U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図から第１６図は本考案の実施例に係り、
第１ａ図は針受け装置の説明図、第１ｂ図はその
組付け状態説明図、第２図はオーバロツクミシン
の機構説明図、第３図は針と上ルーパ及び下ルー
パの運動曲線の説明図、第４図から第６図は針と
下ルーパの交夂状態説明図、第７図及び第８図は
針と前針受けとの交夂状態説明図、第９図は針と
前針受けとの送り方向位置関係説明図、第１０図
はそのＦ矢視図、第１１図及び第１２図は他の実
施例の針と前針受けとの交夂状態説明図、第１３
図は第１２図Ｈ矢視図、第１４図から第１５図は
第２の実施例における針と後針受けとの交夂状態
説明図、第１６図はその送り方向位置関係説明図
、第１７図は従来例におけるオーバロツクの針と
縫い目の説明図、第１８図及び第１９図は針曲が
りの説明図、第２０図は従来の前針受け説明図で
あり、１０は針、１８は下ルーパ、２２は前針受
けである。 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)

【実用新案登録請求の範囲】[Scope of utility model registration request] 針糸を保持し送り方向前方上方から針板の針穴
を通り送り方向手前下方に上下動する針と、該針
と協働する少なくとも一本のルーパとを備えたオ
ーバロツクミシンにおいて、前記針板の下方にあ
つて前記ルーパによる針糸捕捉時に前記針を案内
する位置となり前記針の下降時に針先が針板に達
してから針の最下位置に達するまでの間前記針か
ら離隔する位置に作動する前針受けを備えるオー
バロツクミシンの針受け装置。 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.