| 摘要 |
<p>PURPOSE:To simplify the structure of a secondary side rotary transformer and to facilitate assembling by drawing the plural coils of the rotary transformer along plural radial grooves provided at a core in the rotary magnetic head device of a DAT or a VTR. etc. CONSTITUTION:This device is comprised in such a way that the coils 32a and 32b locabed at four concentric circular grooves 31 of the core of the rotary transformer passing a first radial groove 33a and the coils 32c and 32d passing a second radial groove 33b are drawn to an FPC 35 fixed on a back plane. Thereby, the device can be comprised with easy assembling, and also, it is possible to perform wiring work without impairing the accuracy of a cylinder in narrow space and to reduce cost when the miniaturization of the rotary magnetic head device and the making of the device into multiple channels are performed.</p> |
