JPH0468774U

JPH0468774U -

Info

Publication number: JPH0468774U
Application number: JP11214290U
Authority: JP
Priority date: 1990-10-29
Filing date: 1990-10-29
Publication date: 1992-06-18

Description

[Brief explanation of the drawing]

第１図は本考案のミシンの垂直全回転釜の側面
図、第２図はその背面図、第３図は本考案の他の
実施例を示す側面図、第４図はその要部の拡大側
面図、第５図はその平面図、第６図、第７図は本
考案の更に他の実施例の要部を示す正面図及び平
面図、第８図は従来の千鳥縫い用垂直全回転釜の
側面図、第９図はその背面図、第１０図、第１１
図は上糸のループ説明用平面図及び側面図、第１
２図は針振りミシンの説明図、第１３図ａ，ｂは
夫々上糸のループ説明図である。１……外釜、２……内釜、２ａ……内釜止め、
３……ボビンケース、４……裏板、５……回転軸
、５ａ……ボス、５ｂ……ねじ、６……剣先、７
……針、８……上糸、８ａ……裏ループ、８ｂ…
…表ループ、９……針板、９ａ……針孔、１０…
…針先の軌跡、１１ａ……裏ループ受け、１１ｂ
……取付板、１２……ミシンベツドフレーム、１
３，１４……ねじ。 Figure 1 is a side view of the vertical full-rotation hook of the sewing machine of the present invention, Figure 2 is its rear view, Figure 3 is a side view showing another embodiment of the present invention, and Figure 4 is an enlarged view of its main parts. A side view, FIG. 5 is a plan view, FIGS. 6 and 7 are a front view and a plan view showing main parts of still another embodiment of the present invention, and FIG. 8 is a conventional full vertical rotation for zigzag stitching. The side view of the pot, Figure 9 is its rear view, Figures 10 and 11
The figures are a plan view and a side view for explaining the loop of the upper thread.
FIG. 2 is an explanatory view of a needle swing sewing machine, and FIGS. 13a and 13b are explanatory views of needle thread loops, respectively. 1...outer pot, 2...inner pot, 2a...inner pot stop,
3... Bobbin case, 4... Back plate, 5... Rotating shaft, 5a... Boss, 5b... Screw, 6... Sword tip, 7
...Needle, 8...Needle thread, 8a...Back loop, 8b...
...Front loop, 9... Throat plate, 9a... Needle hole, 10...
...Trajectory of the needle tip, 11a...Back loop receiver, 11b
...Mounting plate, 12...Sewing machine bed frame, 1
3,14...Screw.

Claims

[Scope of claim for utility model registration] (1) The tip of the outer hook is located at the same position as the end surface of the back plate or outside the back plate, and the loop of the upper thread is formed by the needle when the outer hook rotates. A vertical full-rotation hook for a sewing machine, characterized by having a back plate part that faces the machine removed. (2) Place a back loop holder on the outside of the back plate,
2. The full vertical rotary hook of a sewing machine according to claim 1, wherein the back loop of the needle thread is held down by the back loop receiver. (3) Claim 2: The distance and height between the back loop receiver and the needle drop position can be adjusted according to the needle drop position.
Vertical full-rotation hook of the mentioned sewing machine.