Metal working – Plural diverse manufacturing apparatus including means for... – Separate tool stations for selective or successive operation...
Patent
1991-08-02
1993-07-06
Echols, P. W.
Metal working
Plural diverse manufacturing apparatus including means for...
Separate tool stations for selective or successive operation...
29605, 140 921, 242 709, 242 714, B23P 2300
Patent
active
052242579
ABSTRACT:
A coil element is made by the steps of winding a coil wire around a plurality of guide portions arranged at a product pitch to form a plurality of coil portions while the coil wire is set in a development state, and rolling a bobbin on and along the coil wire to wind the coil wire around a side peripheral portion of the bobbin to manufacture the coil element. An apparatus for manufacturing the coil element includes a plurality of guide portions arranged adjustably between a winding operation pitch and a predetermined product pitch, a coil portion forming device for winding a coil wire around the guide portions when the guide portions are adjusted to the winding operation pitch to form a plurality of coil portions while the coil wire is set in a development state, a switch device for changing the pitch of the guide portions between the winding operation pitch and the predetermined product pitch, and a rolling device for rolling a bobbin on and along the coil wire to wind the coil wire around a side peripheral portion of the bobbin to manufacture the coil element.
REFERENCES:
patent: 4558835 (1985-12-01), Sunaoka
patent: 4790063 (1988-12-01), Kawazoe et al.
Kawazoe Hiroshi
Murakoshi Toshiichi
Takahata Toshihiro
Tokunaga Masataka
Echols P. W.
Matsushita Electric - Industrial Co., Ltd.
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