JPH0310370U

JPH0310370U -

Info

Publication number: JPH0310370U
Application number: JP6778289U
Authority: JP
Priority date: 1989-06-09
Filing date: 1989-06-09
Publication date: 1991-01-31

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す部分断面平面
図、第２図は同上の要部正面図、第３図は記録域
に置かれた磁気ヘツドを示す同上の要部側面図、
第４図は停止位置に置かれた磁気ヘツドを示す同
上の側面図、第５図は昇降用カム、ブレーキ用カ
ム、ヘツド・キヤリツジの相対位置を示す概略斜
視図、第６図は雌ねじとヘツド・キヤリツジの相
対位置を示す要部断面図、第７図は雌ねじとヘツ
ド・キヤリツジの要部を示す分解斜視図である。３，４……ガイド部材、６……ねじ軸、８……
駆動モータ、９……磁気ヘツド、１９……雌ねじ
、１０……ヘツド・キヤリツジ、２１……雌ねじ
案内部。 FIG. 1 is a partially sectional plan view showing an embodiment of the present invention, FIG. 2 is a front view of the main parts of the same, and FIG. 3 is a side view of the main parts of the same, showing a magnetic head placed in the recording area.
Figure 4 is a side view of the magnetic head placed in the stopped position, Figure 5 is a schematic perspective view showing the relative positions of the lifting cam, brake cam, and head carriage, Figure 6 is the female screw and head.・A sectional view of the main parts showing the relative positions of the carriages; FIG. 7 is an exploded perspective view showing the main parts of the female screw and the head carriage. 3, 4... Guide member, 6... Screw shaft, 8...
Drive motor, 9...Magnetic head, 19...Female thread, 10...Head carriage, 21...Female thread guide section.

Claims

[Claims for Utility Model Registration] A magnetic head that abuts the medium in the recording area and is separated from the medium at the running end outside the recording area, is supported by a guide member so as to be freely movable, and is supported at the running end. head stopped at
a carriage; a screw shaft disposed parallel to the guide member; a female thread guide portion provided on the head/carriage parallel to the traveling direction of the magnetic head for regulating rotation of the female screw; a female screw which is screwed together and is engaged with the female thread guide portion, and which moves relative to the head carriage by a distance _l1 of play and then comes into contact with the head carriage and causes the head carriage to travel; , and a drive motor that rotates the screw shaft and moves the female screw by a distance α during the rise time from stop to constant rotation, and moves the magnetic head from the stop position to the medium contact position. A traveling magnetic head device characterized in that the relationship among the distance l ₂ , the play distance l ₁ of the female screw, and the distance α required for the start-up of the drive motor is l ₂ +l ₁ ≧α.