| 摘要 |
<p>A magnetic-tape scanning device for a helicalscan magnetic-tape recorder comprises two scanning means in the form of a stationary part (5) and a magnetic-head support (4) which is rotatable relative thereto, the contactless transfer of video signals from and to the magnetic heads (3) between the said stationary and rotary parts being achieved via a rotary transformer comprising a rotating transformer ring (11A) on the rotary head support and a stationary transformer ring (11B) on the stationary part, which stationary ring is spaced from the rotating ring by a narrow air gap (b). The transformer rings are adhesively secured to the two scanning means by supports (13), which are received with clearance in through-bores (22) in the scanning means and each of which is connected to the relevant scanning means by a layer of adhesive (18) which is situated only between the inner wall of the respective through-bore (22) and the cylindrical surface (14) of the support.</p> |
