JPH01162167U

JPH01162167U -

Info

Publication number: JPH01162167U
Application number: JP5730188U
Authority: JP
Priority date: 1988-04-30
Filing date: 1988-04-30
Publication date: 1989-11-10

Description

[Brief explanation of the drawing]

図は全てこの考案の実施例を説明するためのも
ので、第１図ａは実施例に係るキヤリツジ移送装
置の要部平面図、第１図ｂはその正面図、第２図
はモータ制御の手順を示すフローチヤート、第３
図はパルスとステツプアウト、ステツプオフ信号
の関係を示すタイミングチヤート、第４図はキヤ
リツジ移送ユニツトの分解斜視図、第５図はキヤ
リツジ移送ユニツトを備えたデイスク駆動装置の
要部平面図、第６図ａは他の実施例に係るキヤリ
ツジ移送装置の要部平面図、第６図ｂはその正面
図である。３……ステツピングモータ、５……スクリユー
シヤフト、１９……ストツパ、２０……突出部、
２７……キヤリツジ、２９……ヘツド装置、４７
……反射部、４９……非反射部、５１，５５……
光センサ、５３……スリツト。 The figures are all for explaining the embodiment of this invention. Fig. 1a is a plan view of the main parts of the carriage transfer device according to the embodiment, Fig. 1b is a front view thereof, and Fig. 2 is a motor control diagram. Flowchart showing the steps, Part 3
The figure is a timing chart showing the relationship between pulses, step-out, and step-off signals, Figure 4 is an exploded perspective view of the carriage transfer unit, Figure 5 is a plan view of essential parts of the disk drive device equipped with the carriage transfer unit, and Figure 6 FIG. 6a is a plan view of a main part of a carriage transfer device according to another embodiment, and FIG. 6b is a front view thereof. 3... Stepping motor, 5... Screw shaft, 19... Stopper, 20... Projection,
27...Carriage, 29...Head device, 47
...Reflective part, 49...Non-reflective part, 51, 55...
Optical sensor, 53...slit.

Claims

[Scope of utility model registration request]

It is equipped with a screw shaft having a spiral groove on its outer periphery, a stepping motor that rotationally drives the screw shaft, and a head device that writes and reads signals to and from the information recording disk and engages with the spiral groove. An engaging means is provided on the screw shaft and is provided with a carriage that is moved in the radial direction of the information recording disk in accordance with the rotation of the screw shaft. A carriage transfer device having a stopper for inhibiting the carriage, a detecting means for detecting either the rotating state of the screw shaft or the moving state of the carriage, and detecting means for detecting a state in which the detected state from the detecting means deviates from a preset detected state. A stepping motor control means for stopping the stepping motor when the carriage is moved.