发明授权
- 专利标题: Needle and feed cam arrangement for a zig zag sewing machine
- 专利标题(中): Zig缝纫机的针和进给凸轮装置
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申请号: US235136申请日: 1981-02-17
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公开(公告)号: US4380204A公开(公告)日: 1983-04-19
- 发明人: Susumu Hanyu , Akio Koide
- 申请人: Susumu Hanyu , Akio Koide
- 申请人地址: JPX Tokyo
- 专利权人: Janome Sewing Machine Co. Ltd.
- 当前专利权人: Janome Sewing Machine Co. Ltd.
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX55-19737[U] 19800220
- 主分类号: D05B3/02
- IPC分类号: D05B3/02 ; D05B19/00
摘要:
A sewing machine includes a main drive shaft rotatably mounted in said housing for vertically reciprocating a needle penetrating a fabric to produce stitches therein, a shaft extending transverse to the main drive shaft and rotatably mounted in the machine housing, a worm and a worm gear between said main drive shaft and the transverse shaft for rotating the latter at a speed smaller than the rotational speed of the main shaft, a plurality of pattern cams and a plurality of feed control cams mounted on the transverse shaft for rotation therewith. The sewing machine is further provided with a transmission arrangement operatively connected to a needle arrangement frame and having a first follower adapted to cooperate with a selected one of the plurality of pattern cams for controlling lateral swinging movement of the needle, a fabric feed regulator tiltably mounted in the machine housing for regulating the amount of movement of the fabric to be stitched in forward and rearward direction, and the transmission device for controlling tilting of the feed regulator including a second follower cooperating with a selected one of the feed control cams. A control shaft with a pattern selecting cam and a feed selecting cam is mounted in the machine housing, which is operative for moving the first follower into cooperative engagement with a selected one of said pattern cams and for moving the second follower into cooperative engagement with a selected one of the feed control cams.
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