JPH03125371A - Auto-changer - Google Patents

Abstract

PURPOSE:To perform the recording/reproducing of high reliability by making the interior of the auto-changer a hermetic closing structure, providing also a thermostatic device and suppressing influence upon the recording/reproducing due to dust and heat. CONSTITUTION:The interior of the auto-changer is of a hermetic closing structure, into which no air is allowed to flow from the exterior. Consequently, since dust can be prevented from infiltrating, no dust is stuck on the surfaces of recording media 12 placed on housing racks 11. Because of this, even if a changeover of recording media for recording/reproducing is performed by operating drive devices 2 and 3 with a handle 8 in the interior of the auto- changer, there is no fear that a recording/reproducing error should be generated due to sticking of dust, thus maintaining reliability. Moreover, because of the thermostatic device, air inside the case 1 is circulated to be kept under a constant temp., and hence a temp. T2 is cooled down to a temp. T1 by a heat exchanger part 17a, so that heat which is generated in the process of using the drive devices 2 and 3 can be exhausted to the exterior.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a drive unit W (optical information recording/reproducing device) that optically records/reproduces information on a disk-shaped recording medium, and a storage rack housing a large number of the recording media. This invention relates to an autochanger that searches for and exchanges the above-mentioned recording medium between.

(Prior Art) As this type of autochanger, one having a structure as shown in FIG. 2 is known. Here, a disk-shaped recording medium 112 is placed inside the autochanger box 101.
A drive device (optical information recording/reproducing device) 102, 103 that records/reproduces information by irradiating the laser beam with a laser beam, and
A storage rank 111 that stores a large number of the recording media 112 is provided, and a storage rack 111 is provided between which a storage rack 111 is provided, and a hand that takes the recording media 112 in and out of the storage rack 111 or in and out of the drive devices 102 and 103 is provided. 108 are provided. The hand 108 is supported by a drive unit 109 to be moved up and down on a shaft 110 extending vertically, and the shaft 110 is rotated by drive units 106 and 107 provided at its upper and lower ends. It is supported as such. Then, the drive section 106.
107 is a horizontally extending or near motor 104.10
5 in the left and right direction.

Note that, if necessary, the autochanger case 101 is provided with an insertion slot 115 for loading a new recording medium 112a.
is opened.

In such a configuration, the drive portions 106, 107°10
9 and linear motors 104 and 105, hand 1
08 is moved to the required location, the necessary recording medium 112 is searched for from the storage rack 111, taken out, and loaded into the required drive device 102 or 103, or the recording medium 112 is taken out from the drive device 102 or 103. , return it to the required location on the storage rack 111, or
Work such as loading a new recording medium 112a into the interior through the insertion slot 115 is performed.

In this case, in order to avoid a temperature rise in the drive devices 102, 103, the autochanger box 101 is equipped with an air intake port 114a equipped with a filter 114, and a cooling fan 113 for discharging air from inside. As a result, the airflow passing through the autochanger box 101 causes the drive device 102 to
．． This realizes 103 air cooling.

(Problems to be Solved by the Invention) However, since the autochanger having the above configuration draws air into the autochanger box from the outside as described above, even if a filter is provided, intrusion of fine dust cannot be avoided.

In addition, air is drawn in from the insertion port 115 of the recording medium 112a, and the intrusion of dust is unavoidable. For this reason, dust accumulates inside the case, causing the recording media 11 in the storage rank to
This adheres to the surface of the drive device 102, 10.
3 interferes with recording/reproducing, making it impossible to record/reproduce information correctly.

(Object of the Invention) The present invention has been made based on the above circumstances, and the interior of the autochanger is sealed to prevent dust from entering from the outside, and the heat generated by the information recording/reproducing device can be cooled down by constant temperature means. This is an attempt to provide an autochanger that does this.

(Means for Solving the Problems) Therefore, in the present invention, an optical information recording/reproducing device that records/reproduces information by irradiating a disk-shaped recording medium with a laser beam and a storage rack for the disk-shaped recording medium are provided. In an autochanger that searches and exchanges the disc-shaped recording medium between the two, the inside of the autochanger has a sealed structure, a constant temperature device is installed to keep the temperature and humidity constant inside the autochanger, and a heat medium circulating inside the constant temperature device is installed. Heat exchange is performed between the inside and outside of the autochanger through the autochanger.

(Function) Therefore, since no dust enters into the autochanger from the outside, the surface of the recording medium is kept clean, so that recording/reproduction is not hindered by dust adhesion. Furthermore, since the temperature and humidity inside the autochanger are controlled by the constant temperature device, the information recording/reproducing device can avoid temperature rise due to heat generation and maintain stable operation.

(Example) An example of the present invention will be specifically described below with reference to FIG.

The autochanger shown here also has drive devices 2, 3 and a storage rack 11 disposed within an autochanger box 1, and a hand 8 is provided between them, as in the conventional example. This hand 8 is supported in a manner that it can be moved up and down with respect to a shaft 10 by a drive section 9, and
The shaft 10 is rotatably supported by drive parts 6 and 7 at its upper and lower ends. Then, the drive section 6
7 is arranged horizontally or driven in the left-right direction by the nearmorphs 4 and 5.

In particular, in the present invention, a constant temperature device is disposed below the storage rack 11. This is drive device 1
2.3 A box 16 having a cooling fan 16b for discharging cooling air toward the storage rack 11 and having an intake port 16a through the back space of the storage rack 11, and a heat exchange section provided inside the box 16. 17a, and a radiator 17 that communicates with the heat exchange section 17a to circulate a heat medium. There is.

In the figure, reference numeral 15 is an insertion slot into which a new recording medium 12a is inserted, and preferably a lid is provided to improve the degree of sealing within the autochanger box 1.

In such a configuration, the inside of the autochanger case 1 has a sealed structure, and no air enters from the outside, thereby preventing dust from entering. No dust is attached to the surface of 12.

Therefore, even if the recording medium is exchanged and recorded/reproduced in the drive devices 2 and 3 using the hand 8 in the autochanger, there is no risk of recording/reproducing errors due to dust adhesion, and reliability is maintained. I can keep it. Moreover,
Due to the function of the constant temperature device, the air inside the autochanger box 1 is circulated so as to be kept at a constant temperature, and the air inside the autochanger box 1 is circulated so as to be kept at a constant temperature.
Since the drive device 2.3 is cooled from the temperature Tz to T, the heat generated during the use of the drive device 2.3 can be released to the outside.

(Effects of the Invention) As described in detail above, the present invention has a sealed structure inside the autochanger to prevent dust from entering, so recording media can be stored in a clean state and recording/playback is reliable. In addition, since the temperature and humidity are controlled by a constant temperature device, it is possible to remove the heat generated when the recording and reproducing device is driven, and the recording medium itself can be prevented from deteriorating over time. Practical effects can be obtained.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention, and FIG. 2 is a longitudinal sectional front view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Auto changer box, 2, 3... Drive device (optical information recording and reproducing device), 4.5... Linear motor, 6, 7.9... Drive unit, 8... Hand ,
10...Shaft, 11...Storage rank, 12...
・Recording medium, work 6... box, 16a... suction port, 1
6b...Cooling fan, 17...Radiator, 17a...
- Heat exchange part, 17b... fin. 1st N

Claims (1)

[Claims] In an autochanger that searches for and exchanges the disc-shaped recording medium between an optical information recording/reproducing device that records/reproduces information by irradiating the disc-shaped recording medium with a laser beam and a storage rack for the disc-shaped recording medium. The inside of the autochanger has a sealed structure, a constant temperature device is installed to keep the temperature and humidity inside the autochanger constant, and heat exchange between the inside of the autochanger and the outside is performed through a heat medium circulating inside the constant temperature device. An autochanger characterized by configuring