JP3867621B2 - Recording medium loading device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording medium loading apparatus for loading / unloading a CD, DVD, DVD-R / RW, DAT or the like, which is an information recording medium, in a system in a computer system or an audio system.
[0002]
[Prior art]
A recording medium for recording or reproducing digital information is usually configured to be transported and driven from the outside of the system to a recording / reproducing unit arranged and fixed therein. The loading / unloading of the recording medium is generally performed by a transport tray that moves forward and backward in the horizontal direction between the outside and the inside of the system. A system that includes such a transport tray and performs loading / unloading of an optical disk is generally called a disk device. FIG. 5 shows an external appearance of a personal computer (hereinafter referred to as a personal computer) incorporating the disk device D1. FIG. 6 shows a state in which the disc device D2 is built in the CD player in the audio system.
[0003]
The conventional general disk device built in the system is configured as shown in FIG. In other words, reference numeral 101 in the figure denotes a transport tray in which a 12 cm standard or 8 cm standard optical disc is mounted and moved horizontally in and out of the equipment housing based on a load or unload instruction. It moves forward and backward in the horizontal direction within the disk base 102 fixed to the casing body of the device. The driving force for moving the transport tray 101 forward and backward is formed on the transport tray 101 by the rotational force of a sled motor (not shown) disposed on the disc base 102 via the gear system 103 as shown in FIG. A configuration for transmitting to the rack gear 104 is generally used.
[0004]
In the conventional disk apparatus configured as described above, the transport tray 101 moves forward and backward on the disk base 102 in a sliding state. However, in order to guide and support the transport tray 101, as shown in FIG. A support projection 102a is formed on the bottom of the side portion, and a support projection 102b is formed on the side wall. The rail-side end 101a of the transport tray 101 is inserted into a gap G formed between the support projection 102a and the support projection 102b.
[0005]
[Problems to be solved by the invention]
By the way, the transport tray 101 and the disk base 102 configured as described above are usually formed of a synthetic resin, respectively. However, particularly in the case of mass production, a plurality of molds are prepared and simultaneously arranged. In general, the same part is molded. However, since it is difficult to completely unify molding conditions such as molding pressure and molten resin temperature, all of the molded products are not finished with the same dimensions, resulting in various dimensions and plate thicknesses.
[0006]
From such a problem, the gap G between the support projection 102a and the support projection 102b, that is, the holding clearance for holding the rail side end 101a of the transport tray 101 is allowed to allow the maximum molding error. Even in the case of a transport tray molded under various molding conditions, contact resistance does not occur and the gap is accommodated in the gap G so that smooth operation is possible.
[0007]
Therefore, when the transport tray 101 is incorporated in the disk base 102 formed with the support protrusions 102a and the support protrusions 102b designed with such consideration, the rail side end 101a is formed thinner than the maximum width of the gap G. If this is the case, play in the up and down direction will occur in the transport tray 101 as shown in FIG. When the transport tray 101 is unloaded and exposed entirely outside the equipment casing, the transport tray 101 is in a cantilever state in which only the rear end portion is supported, and the transport tray can be touched only with a fingertip when the optical disk is loaded. The tip of 101 swings up and down while swinging.
[0008]
When the product is completed in such a state, the influence on the user, that is, the operation feeling of the transport tray is impaired, and the sense of quality is lowered. In particular, in a product that requires high quality such as a high-quality audio product, improvement of the operational feeling is an important factor in order to improve the merchantability, and it is necessary to prevent uneven quality.
[0009]
The present invention has been made in order to solve such a problem, and even in a transport tray in which a dimensional error occurs due to molding conditions, the mounting state to the disk base is made constant. The tray holding clearance can be set to the minimum necessary so that the vertical swing of the transport tray does not occur.
[0010]
[Means for Solving the Problems]
Accordingly, the present invention provides a holding mechanism for supporting the movement of the conveyance tray while guiding the movement of the conveyance tray in a recording medium loading apparatus in which a conveyance tray loaded with a recording medium is moved forward and backward in the horizontal direction to load / unload. The holding tray holding clearance by the holding mechanism is adjusted by advancing and retracting the adjusting screw .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention shown in the drawings will be described in detail. The recording medium to be implemented in the present invention is not particularly limited as long as the recording medium can be loaded by the transport tray. However, in the following examples, the invention is easily understood. An explanation will be given based on the general configuration of the disk device of the optical disk.
[0013]
FIG. 1 is a plan view of a disk device embodying the present invention. In FIG. 1, reference numeral 1 denotes a transport tray, and a rail side end 1a is formed. As shown in FIG. It is supported by a support protrusion 2a formed on the disk base 2, and moves forward and backward in the horizontal direction within the disk base. Reference numeral 3 denotes a holding mechanism for the transport tray 1. As shown in FIG. 2, the main frame is composed of a lower frame member 4 fixed to the disc base 2 and an upper frame member 5 connected to the lower frame member 4 by a coupling screw 6. Become.
[0014]
As shown in FIG. 3, screw guide holders 7 are implanted in the upper frame member 5 at the four corners of which the center is directly above the rail-side end 1a of the transport tray 1. An adjustment screw 8 is screwed on the holder 7. In the state configured as described above, the tip end of the spindle 8 a extended to the adjustment screw 8 faces the rail side end 1 a of the transport tray 1 as is apparent from FIG. 4. The spindle 8a functions to guide and support the movement of the rail side end 1a at its tip, but it needs to be non-contact with the rail side end 1a.
[0015]
The disk device of the present invention is configured as described above, and the whole moves forward and backward in accordance with the amount of rotation of the adjusting screw 8, so that the vertical position of the tip of the spindle 8a can be adjusted. Therefore, by interposing a gap gauge between the rail side end 1a and the tip of the spindle 8a and rotating the adjusting screw 8 to perform positioning, the rail side end 1a is formed to any thickness. The holding clearance can be made constant.
[0016]
【The invention's effect】
As described above, according to the present invention as has been described in detail, since to be able to adjust the forward and backward adjustment screw retention clearance for the carrier tray, even when there is a thick erroneous difference in conveying trays by molding conditions, a constant retaining clearance Can be obtained, and a recording medium mounting apparatus with a constant quality can be obtained.
[0017]
Further, since extremely fine adjustment is possible with the adjusting screw, the holding clearance can be set to the minimum necessary. As a result, the vertical movement of the transport tray does not occur at all, and a great effect can be obtained, such as improving the operational feeling.
[Brief description of the drawings]
FIG. 1 is a plan view of a recording medium mounting apparatus of the present invention.
FIG. 2 is a cross-sectional view of the recording medium mounting apparatus of the present invention.
FIG. 3 is a perspective view showing a holding mechanism of the recording medium mounting apparatus of the present invention.
FIG. 4 is a cross-sectional view of a main part of the recording medium mounting device of the present invention.
FIG. 5 is a diagram showing an external appearance of a personal computer with a built-in disk device.
FIG. 6 is a diagram showing the appearance of a CD player with a built-in disk device.
FIG. 7 is a plan view of a conventional disk device.
FIG. 8 is a diagram showing a configuration of a transport tray of a conventional disk device.
FIG. 9 is an explanatory diagram showing a problem state in a conventional disk device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Transport tray 1a ... Rail side end 2 ... Disk base 3 ... Holding mechanism 4 ... Lower frame material 5 ... ... Upper frame material 6 ... Connection screw 7 ... Screw guide holder 8 ... Adjustment screw

Claims (1)

In a recording medium loading apparatus configured to load / unload a conveyance tray mounted with a recording medium by moving it forward and backward in the horizontal direction,
A recording medium loading apparatus, characterized in that a holding mechanism that supports and guides the movement of the transport tray, wherein a holding clearance of the transport tray by the holding mechanism is adjusted by advancing and retracting an adjustment screw .

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