JPS5778625A - Adjusting device of projection extent of video head - Google Patents

Adjusting device of projection extent of video head

Info

Publication number
JPS5778625A
JPS5778625A JP15489380A JP15489380A JPS5778625A JP S5778625 A JPS5778625 A JP S5778625A JP 15489380 A JP15489380 A JP 15489380A JP 15489380 A JP15489380 A JP 15489380A JP S5778625 A JPS5778625 A JP S5778625A
Authority
JP
Japan
Prior art keywords
video head
head
projection
extent
bimorph
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15489380A
Other languages
Japanese (ja)
Inventor
Yuichi Matsushita
Sadao Hosoi
Masayoshi Matsuyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sony Corp
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Priority to JP15489380A priority Critical patent/JPS5778625A/en
Publication of JPS5778625A publication Critical patent/JPS5778625A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
    • G11B21/24—Head support adjustments

Abstract

PURPOSE:To easily adjust the extent of projection of a head, by constituting so that the video head supported through an electromechanical converting element is made movable in the diameter direction of a rotary body, and a control signal for adjusting the extent of projection of the head is supplied to the converting element. CONSTITUTION:On the space between a rotary drum 1 and a fixed drum 3, round which a video tape 2 has been wound, the tip of a video head 5 is provided so as to project from the outside circumferential surface of the drums 1, 3, and this video head 5 is supported by a bimorph plat 6 functioning as an electromechanical converting element so as to be movable in the diameter direction A of the rotary drum 1. This bimorph plate 6 is installed onto the rotary drum 1. Also, when this bimorph plate 6 is deformed in accordance with an electric signal supplied through a bimorph driving circuit 11 from a contolling circuit 10, the video head 5 moves in the direction as indicated with an arrow A, and the extent of projection of the tip is controlled.
JP15489380A 1980-11-04 1980-11-04 Adjusting device of projection extent of video head Pending JPS5778625A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15489380A JPS5778625A (en) 1980-11-04 1980-11-04 Adjusting device of projection extent of video head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15489380A JPS5778625A (en) 1980-11-04 1980-11-04 Adjusting device of projection extent of video head

Publications (1)

Publication Number Publication Date
JPS5778625A true JPS5778625A (en) 1982-05-17

Family

ID=15594251

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15489380A Pending JPS5778625A (en) 1980-11-04 1980-11-04 Adjusting device of projection extent of video head

Country Status (1)

Country Link
JP (1) JPS5778625A (en)

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