1377570 ' 六、發明說明： 【發明所屬之技術領域】 本發明與資訊儲存記憶體有關，特別是指—種磁吸驅動 式的光碟讀取裝置。 【先前技術】 光碟機的技術，概如第1圖所示，是將光碟定位在一個 旋轉頭A上，利用該旋轉頭A帶動光碟旋轉，在裝設該旋轉 籲頭A的-個基板P上，又裝設有一個讀取頭B，該讀取頭B 利用固定在該基板P上的二個滑軌C在該基板p上滑動，且 該讀取頭B具被動齒B1，該被動齒B1與該基板p上的一個 . 螺、桿P1喃合’以-個裝設在該基板P上的馬達P2驅動該螺 - 桿P1轉動，便能如第2圖所示，透過該被動齒μ帶動該讀 取頭B在該基板P上相對該旋轉頭a遠近位移，使該讀取頭 B能夠讀到光碟不同位置的資料； • 但該讀取頭B是以該被動齒B1與該螺桿P1接觸嚙合， 因此該嫘桿P1在旋轉時的震動會傳遞至該讀取頭β，對該 讀取頭Β造成影響，且該讀取頭Β在長期受震動影響以後， 還可能產生位移角度的偏斜，使該讀取頭8在讀取光碟資料 •時發生讀取失敗的問題，再加上若是生產作業方面不夠精 良，使該讀取頭Β的被動齒B1與該螺桿ρι之間具有誤差， 還可能造成因誤差而該螺桿P1無法與該被動齒B1接觸嚙合 3 1377570 的問題，本創作人特別針對前述問題研究，進而開發出一種 磁吸驅動式的光碟讀取裝置。 【發明内容】 本發明目的在提供一種磁吸驅動式的光碟讀取裝置，是 利用一個螺合在一個螺桿上的磁鐵，以磁力吸引一個讀取頭 上的一個磁鐵，使該讀取頭受磁吸力帶動而位移。1377570 ' VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to information storage memory, and more particularly to a magnetic drive type optical disk reading device. [Prior Art] The technology of the optical disk drive, as shown in Fig. 1, is to position the optical disk on a rotary head A, and use the rotary head A to drive the optical disk to rotate, and to mount the substrate A of the rotary rotary head A Further, a read head B is mounted, and the read head B slides on the substrate p by two slide rails C fixed on the substrate P, and the read head B has a passive tooth B1. The tooth B1 is spliced with one of the screws p1 on the substrate p. The motor P2 mounted on the substrate P drives the screw P1 to rotate, so that the passive can be transmitted as shown in FIG. The tooth μ drives the read head B to be displaced on the substrate P relative to the rotating head a, so that the read head B can read the data at different positions of the optical disc; • but the read head B is the passive tooth B1 and The screw P1 is in contact with the mesh, so that the vibration of the mast P1 during rotation is transmitted to the read head β, which affects the read head ,, and the read head Β may be generated after being affected by vibration for a long time. The skew of the displacement angle causes the read head 8 to fail to read when reading the disc data, plus if it is a raw The work is not sufficiently sophisticated, so that there is an error between the passive tooth B1 of the reading head and the screw ρι, and the screw P1 cannot be in contact with the passive tooth B1 due to an error. In response to the aforementioned problems, a magnetic drive type optical disk reading device has been developed. SUMMARY OF THE INVENTION An object of the present invention is to provide a magnetic drive type optical disk reading device which utilizes a magnet screwed onto a screw to magnetically attract a magnet on a read head to magnetize the read head. The suction is driven and displaced.
為達前述目的，該光碟讀取裝置包含一個基板、二個滑 軌、一個讀取頭、一個馬達、一個螺桿及一螺套，該二滑軌 固定在該基板上，該讀取頭滑設在該二滑執上，該馬達及該 螺桿設置在該基板上，且該馬達驅動該螺桿轉動，該螺套螺 合在該螺桿上，該螺套及該讀取頭分別具有一個磁鐵，該螺 套的磁鐵又與該讀取頭的磁鐵磁性相異而相吸； 以該馬達驅動該螺桿轉動，便能帶動該螺套在該螺桿上 位移，該螺套又能以磁鐵連動該讀取頭位移，達到以磁吸力 帶動而不需接觸的效果，如此該螺桿在作動時的震動就不會 影響讀取頭，也能避免以往讀取頭與螺桿間因製作誤差產生 無法接觸連動的問題。 【實施方式】 本發明磁吸驅動式的光碟讀取裝置，實施例如第3及4 4 1377570 圖所示，包含： 一個基板10，設置有一個用以定位光碟的旋轉頭11 ; 二個滑軌20，分別為圓柱狀，該各滑執20的兩端分別 固定在該基板10上， 一個讀取頭30，兩側分別滑設在該二滑執20上，該讀 取頭30 —側如第4圖所示設有一個磁鐵31 ; 一個馬達40，設置在該基板10上；以及 一個螺桿50,可轉動地設置在該基板10上，該螺桿50 一端又與該馬達40連接，該螺桿50上設有一個螺套51， 該螺套51内具有磁鐵511，該螺套51的磁鐵511並與該讀 取頭30的磁鐵31磁性相異而相吸，且該螺套51的磁鐵511 與該讀取頭30的磁鐵31之間具有間距。 利用該馬達40驅動該螺桿50轉動，就能連動該螺套 51在該螺桿50上轴向位移，該螺套51的磁鐵511又與該 讀取頭30的磁鐵31相吸，故該螺套51能連動該讀取頭30 同步位移，使該讀取頭30在該二滑軌20上移動且讀取光碟； 由於該螺套51是以非接觸的磁力帶動該讀取頭30位 移，因此該馬達40與該螺桿50在作動時的震動完全不會影 響該讀取頭30，而能提昇該讀取頭30的讀取精度； 且由於該螺套51與該讀取頭30並未接觸，因此即使製 / 作時產生些微誤差，也不會影響該螺套51的磁鐵511以磁 5 1377570 吸力吸引該讀取頭30的磁鐵31，進而能夠避免以往讀取頭 與螺桿間因製作誤差產生無法接觸連動的問題。 1377570 【圖式簡單說明】 第1圖 習知技術的示意圖。 ’第2圖 習知技術讀取頭位移的示意圖。 第3圖本發明實施例的示意圖。 第4圖本發明實施例螺套的磁鐵與讀取頭的磁鐵相 吸的示意圖。 【主要元件符號說明】 《習知》To achieve the foregoing objective, the optical disk reading device comprises a substrate, two slide rails, a reading head, a motor, a screw and a screw sleeve. The two slide rails are fixed on the substrate, and the reading head is slid In the two slidings, the motor and the screw are disposed on the substrate, and the motor drives the screw to rotate, the screw sleeve is screwed on the screw, and the screw sleeve and the reading head respectively have a magnet, The magnet of the screw sleeve is magnetically different from the magnet of the read head; and the screw is driven by the motor to drive the screw sleeve to be displaced on the screw, and the screw sleeve can be linked by the magnet. The displacement of the head reaches the effect of being driven by magnetic attraction without contact, so that the vibration of the screw during the operation does not affect the reading head, and the problem that the previous reading head and the screw are in contact with each other due to manufacturing errors can be avoided. . [Embodiment] The magnetic drive type optical disc reading apparatus of the present invention is implemented as shown in Figs. 3 and 4, 1377, 570, and includes: a substrate 10 provided with a rotary head 11 for positioning the optical disc; two slide rails 20, which are respectively cylindrical, and the two ends of the sliding handles 20 are respectively fixed on the substrate 10, and a read head 30 is slidably disposed on the two sliding handles 20 on both sides. A magnet 31 is provided in Fig. 4; a motor 40 is disposed on the substrate 10; and a screw 50 is rotatably disposed on the substrate 10, and one end of the screw 50 is connected to the motor 40. A screw sleeve 51 is disposed on the sleeve 51. The screw sleeve 51 has a magnet 511. The magnet 511 of the screw sleeve 51 is magnetically attracted to the magnet 31 of the read head 30, and the magnet 511 of the screw sleeve 51 is attracted. There is a space between the magnet 31 of the read head 30. When the screw 50 is driven to rotate the screw 50, the screw sleeve 51 can be axially displaced on the screw 50. The magnet 511 of the screw sleeve 51 is attracted to the magnet 31 of the read head 30, so the screw sleeve 51, the read head 30 can be synchronously displaced, so that the read head 30 moves on the two slide rails 20 and reads the optical disc; since the screw sleeve 51 drives the read head 30 to be displaced by the non-contact magnetic force, The vibration of the motor 40 and the screw 50 during operation does not affect the read head 30 at all, and the reading accuracy of the read head 30 can be improved; and since the screw sleeve 51 is not in contact with the read head 30 Therefore, even if a slight error occurs during the manufacturing process, the magnet 511 of the nut 51 does not affect the magnet 31 of the read head 30 by the magnetic force of 5 1377570, thereby avoiding the manufacturing error between the conventional read head and the screw. There is a problem of inaccessible linkage. 1377570 [Simple description of the drawing] Fig. 1 Schematic diagram of a conventional technique. Figure 2 is a schematic diagram of a conventional read head displacement. Figure 3 is a schematic illustration of an embodiment of the invention. Fig. 4 is a schematic view showing the magnet of the screw sleeve of the embodiment of the present invention being attracted to the magnet of the reading head. [Main component symbol description] "Knowledge"
旋轉頭A 讀取頭B 被動齒B1Rotary head A read head B passive tooth B1
滑執C 基板P 螺桿P1 馬達P2Slipper C substrate P screw P1 motor P2
《本發明》 基板10 滑執20 旋轉頭11 讀取頭30 磁鐵31 馬達40 螺套51 螺桿50 磁鐵511 7<<Invention> Substrate 10 Sliding 20 Rotating Head 11 Reading Head 30 Magnet 31 Motor 40 Screw 51 Screw 50 Magnet 511 7