• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    PURPOSE: A capstan motor assembly of a magnetic recording/reproducing device is provided to dispose an oil inducing portion in a holder with a simple configuration, in order to prevent oil from being dispersed on an outer side of the holder, thereby preventing the oil from sticking to a magnetic tape even though the magnetic tape is contacted with the holder. CONSTITUTION: A capstan motor(40) is installed on a main deck(10). A holder(50) is installed on the main deck(10), and supports a shaft(41) of the capstan motor(40). An oil inducing portion is disposed in the holder(50). The capstan motor(40) consists of the shaft(41) standing straight on the main deck(10), and a driving portion for driving a rotation of the shaft(41). The driving portion consists of a motor frame supported on the main deck(10), a stator, and a rotor. The shaft(41) guides a running of a magnetic tape as being rotating by the driving portion at high speed.
    公开号:KR20040071354A
    申请号:KR1020030007274
    申请日:2003-02-05
    公开日:2004-08-12
    发明作者:김봉주；서재갑；최형석
    申请人:삼성전자주식회사；
    IPC主号:
    专利说明:

    Capstone-motor assembly for magnetic recording / playback apparatus
    [10] The present invention relates to a capstan motor assembly of a magnetic recording / reproducing apparatus.
    [11] In general, a magnetic recording / reproducing apparatus records information on a recording medium such as magnetic tape and reproduces the recorded information. There are a video cassette tape recorder (VCR), a camcorder, and the like.
    [12] Referring to FIG. 1, the magnetic recording / reproducing apparatus includes a main deck 10 in which the head drum 11 is rotatably installed, a sub deck 20 installed in the main deck 10 in a reciprocating manner, A pair of reel tables 21 and 23 rotatably installed on the sub-deck 20 to drive a tape reel of the tape cassette, and a driving force for rotationally driving the reel tables 21 and 23. The capstan motor rotary body 30 etc. are provided.
    [13] Power of the capstan motor assembly 30 is transmitted to the reel table 21, 23 through a power transmission means not shown.
    [14] Referring to FIG. 2, the gapstan motor assembly 30 includes a motor frame 31 installed on the main deck 10 at a predetermined distance and a driver 33 provided below the motor frame 31. And a shaft 35 protruding from the upper portion of the motor frame 33 to be rotated, and a holder 37 rotatably supporting the shaft 35.
    [15] The pinch roller 25 installed in the sub deck 20 adheres the magnetic tape to the shaft 35 to guide the running of the magnetic tape.
    [16] In this way, the pinch roller 25 and the shaft 35 for supporting and supporting the running of the magnetic tape are supported by the holder 37 by the metal bearing 38.
    [17] However, in the case of the conventional capstan motor assembly having the above configuration, the oil is applied to the metal bearing 38 to reduce the load. When the oil thus applied is excessively supplied, the oil may flow down the shaft 35. The oil is scattered by the high-speed rotation of the shaft 35 and buried outside the holder 37. In addition, the oil buried on the outside of the holder 37 may be buried in the magnetic tape which is brought into contact with the shaft 35 and guided by driving. That is, when the tension decreases due to the stoppage of the magnetic tape, posture instability, or the like, when the magnetic tape is loosened and contacts the holder 37, it may be contaminated by oil.
    [18] The present invention has been made to solve the above problems, and an object thereof is to provide a capstan motor assembly of a magnetic recording / reproducing apparatus whose structure is improved to prevent the magnetic tape from being contaminated by oil.
    [1] 1 is a schematic perspective view showing a general magnetic recording / reproducing apparatus.
    [2] FIG. 2 is a cross-sectional view of the capstan motor assembly of FIG. 1. FIG.
    [3] 3 is a schematic exploded perspective view showing a capstan motor assembly of the magnetic recording / playback apparatus according to the embodiment of the present invention;
    [4] 4 is a schematic cross-sectional view of the capstan motor assembly shown in FIG. 3.
    [5] <Description of Symbols for Major Parts of Drawings>
    [6] 10..meadek 40.capstan motor
    [7] 41..Shaft 43.Driver
    [8] 50. Holder 51. Metal bearing
    [9] 53,54.1st and 2nd oil receiving groove
    [19] Capstan motor assembly of the magnetic recording / reproducing apparatus according to the present invention for achieving the above object, the capstan motor is provided on the main deck, the shaft and the drive unit; A holder mounted to the main deck to support the shaft; And an oil guide part provided in the holder so that oil flowing through the shaft is not scattered.
    [20] Hereinafter, a capstan motor assembly of a magnetic recording / reproducing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
    [21] 3 and 4, the capstan motor assembly of the magnetic recording / reproducing apparatus according to the embodiment of the present invention includes a capstan motor 40 installed on the main deck 10, and the main deck 10. It is provided with a holder 50 for supporting the shaft 41 of the capstan motor 40 and the oil guide portion provided in the holder (50).
    [22] The capstan motor 40 has a shaft 41 installed upright on the main deck 10, and a drive unit 43 for rotationally driving the shaft 41. The drive unit 43 includes a motor frame 43a supported on the main deck 10, a stator 43b, and a rotor 43c. The shaft 41 rotates at high speed by the driving unit 43 to guide the driving of the magnetic tape. As described with reference to FIG. 1, the pinch roller 25 is in close contact with the shaft 41.
    [23] The holder 50 is installed on the motor frame 43a to support the shaft 41. In particular, the shaft 41 is rotatably supported by the metal bearing 51 between the holder 50. In the metal bearing 51, oil is added as described above with reference to FIGS. 1 and 2. In addition, flanges 45 for blocking the movement of oil are respectively provided at the upper and lower ends of the shaft 41. The flange 45 is installed to protrude on the outer circumference of the shaft 41 to block oil from flowing to the center of the shaft 41.
    [24] In addition, the holder 50 is provided with the oil guide portion. The oil induction part is to prevent the oil that is excessively added to the shaft 41 flows to the outer circumference of the holder 50 even though it is scattered from the flange 45. The oil guide part includes first and second oil receiving grooves 53 and 54 formed outside the holder 50. The oil receiving grooves 53 and 54 are formed symmetrically with respect to each of the upper and lower portions of the holder 50. The oil receiving grooves 53 and 54 are formed to have a predetermined length from a position facing the shaft 41 of the holder 50. In addition, the oil receiving grooves 53 and 54 are formed to be inclined up and down on the outside of the holder 50. The oil receiving grooves 53 and 54 formed as described above may contain oil splashed upon rotation of the shaft 41 to prevent oil from getting on the outside of the holder 50 and flowing down. Therefore, even if the magnetic tape is in contact with the holder 50 at the time of driving or stopping, oil can be prevented from staining the magnetic tape.
    [25] According to the capstan motor assembly of the magnetic recording / reproducing apparatus of the present invention as described above, it is possible to prevent the oil from spreading outside the holder by providing the oil guide portion in the holder with a simple configuration. In this case, even if the magnetic tape is in contact with the holder, oil can be prevented from being contaminated by the magnetic tape.
    权利要求:
    Claims (5)
    [1" claim-type="Currently amended] A capstan motor installed on the main deck and having a shaft and a driving part;
    A holder mounted to the main deck to support the shaft; And
    Capsule motor assembly of the magnetic recording / reproducing apparatus comprising a; oil guide portion provided in the holder so that the oil flowing in the shaft does not scatter.
    [2" claim-type="Currently amended] According to claim 1, wherein the oil guide portion,
    Capstan motor assembly of the magnetic recording / reproducing apparatus comprising an oil receiving groove formed on the outside of the holder.
    [3" claim-type="Currently amended] 3. The capstan motor assembly of a magnetic recording / reproducing apparatus according to claim 2, wherein the oil receiving groove is formed to be inclined outside the holder.
    [4" claim-type="Currently amended] 3. The capstan motor assembly of claim 2, wherein the oil receiving grooves are formed in upper and lower portions of the holder, respectively.
    [5" claim-type="Currently amended] 3. The capstan motor assembly of claim 2, wherein the oil receiving groove is formed in a predetermined length from a surface facing the shaft of the holder.
    类似技术:
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2003-02-05|Application filed by 삼성전자주식회사
    2003-02-05|Priority to KR1020030007274A
    2003-11-07|Priority claimed from US10/702,726
    2004-08-12|Publication of KR20040071354A
    优先权:
    申请号 | 申请日 | 专利标题
    KR1020030007274A|KR20040071354A|2003-02-05|2003-02-05|capstone-motor assembly for magnetic recording/reading apparatus|
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