JPH03232167A - Head moving device - Google Patents
Head moving deviceInfo
- Publication number
- JPH03232167A JPH03232167A JP2902590A JP2902590A JPH03232167A JP H03232167 A JPH03232167 A JP H03232167A JP 2902590 A JP2902590 A JP 2902590A JP 2902590 A JP2902590 A JP 2902590A JP H03232167 A JPH03232167 A JP H03232167A
- Authority
- JP
- Japan
- Prior art keywords
- feed screw
- head
- pin
- plate spring
- groove
- 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
Links
- 230000000994 depressogenic effect Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 description 20
- 230000000694 effects Effects 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000011345 viscous material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/2003—Screw mechanisms with arrangements for taking up backlash
- F16H25/2009—Screw mechanisms with arrangements for taking up backlash with radial preloading
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moving Of Heads (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はフロッピーディスク装置あるいは光デイスク装
置等のヘッドをディスク上のトラックに移動するヘッド
移送装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a head moving device for moving a head of a floppy disk device, an optical disk device, etc. to a track on a disk.
従来の技術
近年、オフィスオートメーション機器の進展にともない
フロッピーディスクドライブ装置あるいは光ディスクド
ライブ装置が急速に普及してきた。2. Description of the Related Art In recent years, with the advancement of office automation equipment, floppy disk drives and optical disk drives have rapidly become popular.
以下第２図、第３図によシ、上記装置の従来のヘッド移
送装置について説明する。The conventional head transfer device of the above-mentioned apparatus will be explained below with reference to FIGS. 2 and 3.
第２図は従来の光デイスク装置のヘッド移送装置の要部
斜視図であり、第３図は同ヘッド移送装置の要部側断面
図である。同図において、１１は光ヘッド、１２及び１
３は光ヘッド１１を案内するガイド軸、１４はガイド軸
１２，１３と平行に設けられた送シネジ、１６は送シネ
ジ１４を回転させ、上記光ヘッド１１をガイドに沿って
移動させるモータであシ、１６は送りネジ１４の溝１４
Ｌに噛み込むピン、１７は一端が光ヘッド１１に固定さ
れ他端は前記ピン１６を支持するとともに送シネジ１４
に押圧する板バネであり、１８は光ディスクを回転駆動
させるスピンドルモータであり、１９は締結ネジでめυ
、前記板バネ１７の一端を光ヘッド１１に取付けるため
使用されている。また矢印２ｏは板バネ１７の弾性力を
示すものであり、前述のように、ピン１６を送りネジ１
４の溝１４１Ｌに噛み込ませ、さらに押圧する力となっ
ている。FIG. 2 is a perspective view of a main part of a head transfer device of a conventional optical disk device, and FIG. 3 is a side sectional view of a main part of the head transfer device. In the figure, 11 is an optical head, 12 and 1
3 is a guide shaft that guides the optical head 11; 14 is a feed screw provided parallel to the guide shafts 12 and 13; and 16 is a motor that rotates the feed screw 14 and moves the optical head 11 along the guide. 16 is the groove 14 of the feed screw 14
One end of the pin 17 that fits into the L is fixed to the optical head 11, and the other end supports the pin 16 and is connected to the feed screw 14.
18 is a spindle motor that rotates the optical disk, and 19 is a fastening screw that presses the
, is used to attach one end of the leaf spring 17 to the optical head 11. Further, the arrow 2o indicates the elastic force of the leaf spring 17, and as mentioned above, the pin 16 is connected to the feed screw 1.
4 into the groove 141L and is further pressed.
以上のように構成されたヘッド移送装置の動作について
説明すると、モータ１６が回転することによシ、このモ
ータ１６に取付けられた送りネジ１４が回転し、送りネ
ジ１４の溝１４＆に噛み込むピン１６は、送りネジ１４
の軸方向の駆動力を受ける。ピン１６は、この軸方向の
駆動力を板ノくネ１７を介して光ヘッド１１に伝え、光
ヘッド１１をガイド軸１２及び１３に沿わせて移動させ
る。To explain the operation of the head transfer device configured as above, as the motor 16 rotates, the feed screw 14 attached to the motor 16 rotates, and the pin is bitten into the groove 14 & of the feed screw 14. 16 is the feed screw 14
receives an axial driving force. The pin 16 transmits this axial driving force to the optical head 11 via the plate notch 17, and moves the optical head 11 along the guide shafts 12 and 13.
また板バネ１７は矢印方向の弾性力２０を発生させてお
り、ピン１６を送りネジ１４の溝１４＋Ｌに噛み込ませ
、さらに押圧し、送りネジ１４０回転によって確実に送
９ネジ１４の軸方向の駆動力をピン１６に伝えるもので
ある。In addition, the leaf spring 17 generates an elastic force 20 in the direction of the arrow, so that the pin 16 is bitten into the groove 14+L of the feed screw 14 and is further pressed, thereby ensuring that the feed screw 14 rotates 90 times in the axial direction. It transmits the driving force to the pin 16.
発明が解決しようとする課題
以上のヘッド移送装置においては、送りネジ１４の回転
により、送υネジ１４の溝１４＆とこの溝１４１Ｌに噛
み込むピン１６との間で発生する摺動音が板バネ１７に
伝わり、板バネ１７を共振させて大きな振動を発生させ
、騒音となるという課題があった。Problems to be Solved by the Invention In the head transfer device described above, the sliding sound generated between the groove 14& of the feed screw 14 and the pin 16 biting into this groove 141L due to the rotation of the feed screw 14 is caused by the plate spring. 17, causing the plate spring 17 to resonate and generate large vibrations, resulting in noise.
本発明は上記従来の課題を解決するもので、送りネジの
溝と、溝に噛み込むピンの間の摺動音が。The present invention solves the above-mentioned conventional problems, such as the sliding noise between the groove of the feed screw and the pin that bites into the groove.
板バネを共振させず、騒音とならないようにすることを
目的とする。The purpose is to prevent the leaf spring from resonating and producing noise.
課題を解決するための手段
上記課題を解決するために、本発明のヘッド移送装置は
ヘッドと、ヘッドを案内するガイド軸と。Means for Solving the Problems In order to solve the above problems, a head transfer device of the present invention includes a head and a guide shaft for guiding the head.
ガイド軸と平行に設けられた送シネジと、送りネジを回
転させるモータと、送りネジの溝に噛みこむピンと、一
端がヘッドに１司定され他端は上記ピンを支持し送シネ
ジに押圧する板バネと、この板バネに取９つけられた粘
性体とで構成したものである。A feed screw installed parallel to the guide shaft, a motor that rotates the feed screw, a pin that fits into the groove of the feed screw, one end of which is fixed to the head, and the other end of which supports the pin and presses it against the feed screw. It consists of a leaf spring and a viscous body attached to the leaf spring.
作用
以上のように構成した本発明のヘッド移送装置は、送シ
ネジの回転時、送りネジの溝と溝に噛み込むピンの間で
発生する摺動音が板バネに伝わっても、板バネの振動を
板バネに取りつけられた粘性体が吸収するので、共振す
ることなく、騒音を低下させることができるものである
。Effects The head transfer device of the present invention configured as described above does not prevent the plate spring from sliding even if the sliding sound generated between the groove of the feed screw and the pin biting into the groove is transmitted to the plate spring when the feed screw rotates. Since the vibration is absorbed by the viscous body attached to the leaf spring, the noise can be reduced without resonance.
実施例
第１図により本発明のヘッド移送装置の一実施例につい
て説明すると、第１図は本発明のヘッド移送装置の要部
の側断面図であり、１は光ヘッド、２及び３は光ヘッド
１を案内するガイド軸、４はガイド軸２，３と平行に設
けられた送シネジ、６は送りネジ４を回転させるモータ
であり、このモータ５には、前記送りネジ４が取付けら
れている。Embodiment One embodiment of the head transfer device of the present invention will be explained with reference to FIG. 1. FIG. 1 is a side sectional view of the main parts of the head transfer device of the present invention, 1 is an optical head, 2 and 3 are optical heads. A guide shaft guides the head 1, 4 is a feed screw provided parallel to the guide shafts 2 and 3, 6 is a motor for rotating the feed screw 4, and the feed screw 4 is attached to this motor 5. There is.
また６は送りネジ４の溝４ａに噛み込むピンであり、７
は一端が光ヘッド１に固定され他端は前記ピン６を溶接
等で取付け、このピン６を送りネジ４に押圧する板バネ
であシ、８は板ノ（ネ７に接着剤等で取付けられた粘性
体（例えばブチルゴムのシート）である。Further, 6 is a pin that bites into the groove 4a of the feed screw 4, and 7
One end is fixed to the optical head 1, and the other end is attached to the pin 6 by welding or the like, and a plate spring is used to press this pin 6 to the feed screw 4. viscous material (for example, a sheet of butyl rubber).
９は締結ネジであり前記板バネ７の一端を光ヘラｌ′１
に取付けるため便用されている。なお、板バネ７の先端
には折曲部Ｔ＆が形成されており、これが粘性体８を取
付ける時の位置決めとなっている。また粘性体８には、
締結ネジ９のネジ頭より犬なる穴８ａが開けられており
、締結ネジ９の締付けを容易にしている。また矢印１０
は、板バネ７の弾性力を示すものであり、ピン６を送り
ネジ４の溝４＆に噛み込ませ、押圧する力となっている
。9 is a fastening screw, and one end of the plate spring 7 is connected with an optical spatula l'1.
It is conveniently used for installation. Note that a bent portion T& is formed at the tip of the leaf spring 7, and this is used for positioning when the viscous body 8 is attached. Moreover, in the viscous body 8,
A dog hole 8a is made from the screw head of the fastening screw 9 to facilitate tightening of the fastening screw 9. Also arrow 10
indicates the elastic force of the leaf spring 7, which is the force that causes the pin 6 to engage and press the groove 4& of the feed screw 4.
次に本発明のヘッド移送装置の動作について説明すると
、モータ５が回転することにより、このモータ６に取付
けられた送りネジ４が回転し、送りネジ４の溝４ａに噛
み込むピン６は送りネジ４の軸方向の駆動力を受ける。Next, to explain the operation of the head transfer device of the present invention, as the motor 5 rotates, the feed screw 4 attached to the motor 6 rotates, and the pin 6 that is bitten into the groove 4a of the feed screw 4 is inserted into the feed screw. It receives a driving force in the axial direction of 4.
ピン６はこの軸方向の駆動力を板バネ７を介して光ヘッ
ド１に伝え。The pin 6 transmits this axial driving force to the optical head 1 via the leaf spring 7.
光ヘッド１をガイド軸２及び３に沿わせて移動させる。The optical head 1 is moved along the guide shafts 2 and 3.
また上記板バネ７は、弾性力１０を発生させて、ピン６
を送りネジ４の溝４＆に噛み込ませ、送シネジ４の回転
を光ヘッド１への軸方向の駆動力として確実に伝達する
ものである。そして、送りネジ４の溝４ａと、この溝４
ａに噛み込むピン６の間で発生する摺動音は板バネ７に
伝達されるが、板バネ７に接着剤等で取付けられた粘性
体８がこの振動を吸収し、共振することなく、騒音を低
下させることができるものである。Further, the plate spring 7 generates an elastic force 10 and the pin 6
is engaged with the groove 4& of the feed screw 4, and the rotation of the feed screw 4 is reliably transmitted to the optical head 1 as an axial driving force. Then, the groove 4a of the feed screw 4 and this groove 4
The sliding noise generated between the pins 6 biting into the pins a is transmitted to the leaf spring 7, but the viscous body 8 attached to the leaf spring 7 with adhesive or the like absorbs this vibration and prevents resonance. It can reduce noise.
なお、本発明の実施例では粘性体８としてプチルゴムの
シートを用いたが、これは振動の吸収性（減衰特性）の
良好な他の材料例えばシリコンゴムあるいは発泡性ゴム
を使用することも可能である。In the embodiment of the present invention, a sheet of butyl rubber was used as the viscous body 8, but it is also possible to use other materials with good vibration absorption properties (damping characteristics), such as silicone rubber or foam rubber. be.
また前記実施例では、板バネ７の先端に折曲部７ａが形
成されており、これが粘性体８を取付ける時の位置決め
となっているが、この折曲部７１Ｌによシ板バネ７の横
方向の剛性が向上し、板バネ７のねじれが少なくなり位
置決め精度が向上するという効果も得られるものである
。In the embodiment described above, a bent portion 7a is formed at the tip of the leaf spring 7, and this is used for positioning when the viscous body 8 is attached. The directional rigidity is improved, the twisting of the leaf spring 7 is reduced, and positioning accuracy is improved.
発明の効果
以上のように本発明のヘッド移送装置は、一端がヘッド
に固定され、他端がピンを支持し送りネジに押圧する板
バネに粘性体を取り付けたことにより、送りネジの回転
時、送シネジの溝と溝に噛み込むピンの間で発生する摺
動音が板バネに伝達されても、板バネの振動を板バネに
取りつけた粘性体が吸収し、共振することなく、騒音を
低下させることができ、また、ヘッドの振動を粘性体が
吸収することによシ極めて短時間で位置決めが行えると
ともに、ヘッド移送装置の制御特性が向上し、光へラド
の位置決め精度が向上するという優れた効果を有するも
のである。Effects of the Invention As described above, the head transfer device of the present invention has one end fixed to the head, the other end supporting a pin, and a viscous body is attached to the leaf spring that presses against the feed screw. Even if the sliding sound generated between the groove of the feed screw and the pin biting into the groove is transmitted to the leaf spring, the vibration of the leaf spring is absorbed by the viscous body attached to the leaf spring, preventing resonance and eliminating the noise. In addition, since the viscous body absorbs the vibration of the head, positioning can be performed in an extremely short time, and the control characteristics of the head transfer device are improved, which improves the positioning accuracy of the optical helad. This has excellent effects.
第１図は本発明の一実施例におけるヘッド移送装置の要
部の側断面図であり、第２図は従来のヘッド移送装置の
斜視図、第３図は同ヘッド移送装置の要部の側断面図で
ある。
１・・・・・・光ヘッド、２，３・・・・・・ガイド軸
、４・・・・・・送りネジ、４ａ・・・・・・溝、６・
川・・モータ、６・・・・・・ピン、７・・・・・・板
バネ、８・・・・・・粘性体。FIG. 1 is a side sectional view of the main parts of a head transfer device according to an embodiment of the present invention, FIG. 2 is a perspective view of a conventional head transfer device, and FIG. 3 is a side view of the main parts of the head transfer device. FIG. 1... Optical head, 2, 3... Guide shaft, 4... Feed screw, 4a... Groove, 6...
River: Motor, 6: Pin, 7: Leaf spring, 8: Viscous body.
Claims (1)
行に設けられた送りネジと、この送りネジを回転させる
モータと、前記送りネジの溝に噛み込むピンと、一端が
ヘッドに固定され他端が前記ピンを支持し送りネジに押
圧する板バネと、この板バネに取りつけられた粘性体で
構成されたヘッド移送装置。A head, a guide shaft that guides the head, a feed screw provided parallel to the guide shaft, a motor that rotates the feed screw, a pin that engages in a groove of the feed screw, and one end fixed to the head and the other end. The head transfer device includes a plate spring that supports the pin and presses it against the feed screw, and a viscous body attached to the plate spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2902590A JPH03232167A (en) | 1990-02-08 | 1990-02-08 | Head moving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2902590A JPH03232167A (en) | 1990-02-08 | 1990-02-08 | Head moving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03232167A true JPH03232167A (en) | 1991-10-16 |
Family
ID=12264876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2902590A Pending JPH03232167A (en) | 1990-02-08 | 1990-02-08 | Head moving device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03232167A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0663546A1 (en) * | 1994-01-14 | 1995-07-19 | Orion-Yhtymä Oy | Transfer device for performing a linear transfer movement |
| JP2019207374A (en) * | 2018-05-30 | 2019-12-05 | 株式会社シグマ | Lens barrel |
-
1990
- 1990-02-08 JP JP2902590A patent/JPH03232167A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0663546A1 (en) * | 1994-01-14 | 1995-07-19 | Orion-Yhtymä Oy | Transfer device for performing a linear transfer movement |
| JP2019207374A (en) * | 2018-05-30 | 2019-12-05 | 株式会社シグマ | Lens barrel |
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