KR20040016254A - Tray structure for disk drive - Google Patents

Abstract

PURPOSE: A tray structure of a disc drive is provided to load/unload discs having various thicknesses on/from a tray. CONSTITUTION: A tray structure of a disc drive includes a tray main body(32), a guide sidewall(36), at least one stopper(42), and a tilted part(44). The tray main body has a disc mount(34) and a disc support(35) that supports the circumference of a disc. The guide sidewall forms a step difference between the top face of the tray main body and the disc mount to support the side of the disc. The stopper is extended from the tray main body to the center of the disc mount to support the edge of the disc while the tray main body stands vertically. The tilted part is formed outside the disc mount and guides the top end of the disc faces the disc mount.

Description

Tray structure for disk drive

The present invention relates to a disc drive, and more particularly, to a tray structure of a disc drive configured to prevent the disc from being detached from the disc seating surface of the tray when the disc drive is used in a vertical position.

In general, a disc drive for loading and unloading a disc is used for a disc drive that records and plays a signal while loading a disc, which is an optical recording medium, into a set, seated on a turntable, and rotated. An example of such a tray is shown in FIG. 1.

According to this, the tray 1 of the prior art has a rectangular tray body 2. The tray main body 2 is provided with a disk seating surface (3). The disk seating surface 3 is formed stepped so as to seat disks of different diameters. The disc seating surface 3 is stepped so as to be recessed with respect to the upper surface of the tray body 2 as well. The guide side wall 3 'is formed by the step between the disc seating surface 3 and the tray body 2. For reference, the guide side wall 3 ′ is not formed at portions corresponding to both ends of the tray body 2.

A central through hole 5 penetrates the center of the disk seating surface 3. The turntable (not shown) provided at the upper end of the spindle motor protrudes through the central through hole 5 to the upper portion of the disk seating surface 3. The pickup window 6 is formed in the radial direction of the disk seating surface 3 by being connected to the central through hole 5.

On the other hand, the upper surface of the tray body 2 corresponding to the edge of the disk seating surface (3) is provided with a movable stopper (7) to move forward and backward toward the center of the disk seating surface (3). The movable stopper 7 is installed on the stopper guide 8 provided in the tray body 2 to move forward and backward in the direction of arrow a.

The movable stopper 7 of this configuration is used for the disk seated on the disk seating surface 3 of the tray 1 at a position advanced toward the center of the disk seating surface 3 when the disk drive is used in a vertical position. Guide the edges so that the disc does not fall off the disc seating surface (3). Thus, as shown in FIG. 2A, when the vertical position S is used, the lower end of the disk D is supported by the guide side wall 3 'and the movable stopper corresponding to the lower end of the disk D. FIG. (7) supports the lower end of the disk (D). Here, the part of the disk D supported by the guide side wall 3 'is not exactly the lower end of the disk D, but a position away from the lower end by a predetermined distance. This is because when the set S is used in the vertical position, the lower end of the disk D is located at a portion of the tray main body 2 in which the guide side wall 3 is not formed.

However, the prior art as described above has the following problems.

That is, the thickness of the disk D determined by the standard is 1.1 mm to 1.5 mm, and is generally 1.2 mm. Therefore, in designing the tray 1, the disc D of up to 1.5 mm should be used.

However, in the case of using a disc D of 1.2 mm in the tray 1 designed on the basis of the disc D of 1.5 mm, as shown in FIG. The phenomenon that the upper end unfolds on the disk seating surface 3 cannot be avoided. In other words, as shown in FIG. 2A, in the tray 1 in which the position of the movable stopper 7 is designed based on the disk having a thickness of 1.5 mm, the lower end of the disk D having a thickness of 1.5 mm is the disk seating surface 3. And the support stopper 7 so that the upper end of the disk D does not open on the disk seating surface 3, but when the disk D between 1.1 mm and 1.4 mm thick is used, the disk seating surface 3 Since the disk D is movable between the movable stoppers 7, the upper end of the disk D is opened on the disk seating surface 3 by shaking when the tray 1 moves, so that the upper end of the disk D Contact with the set s causes the disk D to fall off or break in the tray 1.

Therefore, in the related art, it is difficult to design a tray 1 capable of vertically mounting a disc having a maximum thickness and a disc having a minimum thickness at the same time, and to solve such a problem, a disc having a general thickness rather than a relatively thick disc D ( The tray 1 is designed suitably for D).

Accordingly, an object of the present invention is to solve the problems of the prior art as described above, and to provide a tray structure of a disk drive that can use all the disks of various thicknesses defined in the standard.

1 is a perspective view showing the configuration of a tray of a disk drive according to the prior art.

Figure 2a and Figure 2b is a state of use showing a state that the tray is used vertically used in the prior art.

Figure 3 is a plan view showing the configuration of a preferred embodiment of a tray structure of a disk drive according to the present invention.

4 is a cross-sectional view taken along the line AA ′ of FIG. 3.

5a to 5c is a state of use showing that the disk of the various thickness is seated in the tray in the embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

30: tray 32: tray body

34: disk seating surface 35: support end

36: guide side wall 38: central aperture

40: pickup window 42: stopper

44: slope

According to a feature of the present invention for achieving the object as described above, the present invention is a tray body having a disk support end for continuous support formed on the disk seating surface and the disk seating surface to support the outer peripheral portion of the disk, and the tray A guide side wall supporting the side surface of the disk by forming a step between the upper surface of the main body and the disk seating surface, and extending from the tray body toward the center of the disk seating surface so that the tray body is upright. At least one stopper supporting an edge and formed at a position corresponding to the lower end of the disk in a state in which the tray body is erected in a vertical position so that the upper end of the disk guides the stopper to the disk seating surface at a point. It is configured to include an inclined portion having a.

The inclined portion is formed to be inclined upward in the centrifugal direction of the disc seating surface at a support end formed around the edge of the disc seating surface.

The inclined portion is formed at both ends of the tray main body in which the guide side wall is not formed at predetermined intervals.

An interval between the lower surface of the stopper and the support end corresponds to an upper limit value of the disk thickness standard, and an interval between the lower surface of the stopper and the end portion of the inclined portion corresponds to a lower limit value of the disk thickness standard.

The inclined portion is formed continuously at the disc support end, and the guide side wall is characterized in that it is formed continuously in the inclined portion.

By using the tray structure of the disk drive according to the present invention having such a configuration, it is possible to accurately load and unload a disk having various thicknesses on the disk seating surface even when the tray is vertically used.

Hereinafter, a preferred embodiment of a tray structure of a disk drive according to the present invention will be described in detail with reference to the accompanying drawings.

Fig. 3 shows a preferred embodiment of the tray structure of the disc drive according to the present invention in plan view, and Fig. 4 shows a cross-sectional view along the line A-A 'in Fig. 3.

As shown in these figures, the tray body 32 of the tray 30 of the embodiment of the present invention has a rectangular plate shape that is formed long in the front-rear direction. The disk seating surface 34 is recessed and formed in the upper surface of the tray body 32. The disk seating surface 34 may be formed concentrically so that a disk D having a different diameter may be seated as a portion to be seated when the disk D is loaded and unloaded. In this embodiment, two disk seating surfaces 34 are formed. Here, the disk seating surface 34 formed on the outer side is relatively higher than the disk seating surface 34 formed on the inner side.

At each of the edges of the disc seating surface 34, a support end 35 is formed on which the edge of the disc D is seated and supported. The support end 35 is formed slightly higher than each disk seating surface 34. Therefore, when the disk D is seated on the disk seating surface 34, the edge of the disk D is actually seated on the support end 35, and the disk D is in contact with the disk seating surface 34. It doesn't work.

The step between the disc seating surface 34 and the upper surface of the tray body 32 is stepped, the step surface is the guide side wall 36, the guide side wall 36 is formed around the edge of the disc seating surface 34 The guide side walls 36 are not formed at portions corresponding to both ends of the tray body 32.

A central through hole 38 is drilled in the center of the disc seating surface 34. The central through hole 38 allows a turntable (not shown) provided at the top of the spindle motor to protrude upward from the bottom of the tray 30. The pick-up window 40 is connected to the central through hole 38 and toward the centrifugal direction of the disk seating surface 34, that is, the rear end of the tray body 32. Through the pickup window 40, the optical pickup can irradiate light onto the signal recording surface of the disc D.

On the other hand, a stopper 42 is formed on the guide side wall 36. That is, the stopper 42 is formed at a position corresponding to both ends of the tray body 32 in the guide side wall 36. The stopper 42 extends integrally from the top of the guide side wall 36 toward the center of the disk seating surface 34. Such a stopper 42 prevents the disk drive, that is, the tray 30, from being used to stand vertically, so that the upper surface of the edge of the disk D is hooked and separated from the disk seating surface 34.

An inclined portion 44 is formed at a position moved from the stopper 42 to both ends of the tray body 32 along the disc seating surface 34. When the inclined portion 44 has a predetermined inclination, the inclined surface 45 is continuously formed on the disc seating surface 34. The inclined portion 44 is provided at a portion where the guide side wall 36 is not formed at both ends of the tray body 32. As shown in FIG. 4, the inclined portion 44 is formed to be inclined upward toward the centrifugal direction of the disk seating surface 34. For reference, in FIG. 4, the guide side wall 36 is indicated by a dotted line, which is assuming that the edge of the disk seating surface 34 extends in a straight line. In this way, the edge of the disk (D) and the guide side wall 36 corresponding thereto have a corresponding curvature, so that the relative positional relationship is displayed to facilitate explanation. Of course, it may be designed such that the inclined surface 45 of the inclined portion 44 is in a position continuous with the guide side wall 36.

Here, the relationship between the start point and the end point of the stopper 42 and the inclined portion 44 will be described. The distance A between the lower surface of the stopper 42 and the upper end of the inclined portion 44 and the lower surface of the stopper 42 and the upper surface of the support end 35 (the same height as the lower end of the inclined portion 44). It is preferable to set the interval B of as follows.

First, it is preferable that the said space | interval A is made into the lower limit of thickness of the prescribed disk D, and it is preferable that the said space | interval B is made into a value slightly larger than the upper limit of the thickness of the prescribed disk D. For example, if the thickness of the disk D is defined as a value between 1.1 mm and 1.5 mm, it is preferable that A is 1.1 mm and B is slightly larger than 1.5 mm, that is, about 1.7 mm.

Hereinafter, the operation of the tray structure of the disk drive according to the present invention having the configuration as described above will be described.

The tray 30 of the present invention serves to load and unload the disk D into and out of the set s, and moves the disk D in a state in which the disk D is seated on the disk seating surface 34.

On the other hand, the present invention is to prevent the disk (D) is separated from the disk seating surface 34 of the tray 30 and interfere with the inner one side of the set (s) when the set (s) is used in a vertical position. .

When the tray 30 is vertically erected, one end thereof faces downward vertically and the other end faces vertically upward. For reference, FIG. 3 shows that the disc D is eccentrically positioned at the center of the disc seating surface 34 by its own weight when the tray main body 32 is installed to face the vertical lower side. Only the disk D is shown in the plan view for the sake of simplicity.

In this case, the stopper 42 provided on the right side of the tray body 32 supports the upper surface of the edge of the disc D, and the inclined portion 44 provided on the right side of the tray body 32 is formed on the disc D. Guide the side cross section.

First, FIG. 5A shows a case where the thickness of the disk D corresponds to 1.1 mm, which is the lower limit of the prescribed value. At this time, the side end surface of the disk (D) facing the vertical lower portion is in contact with the inclined surface 45 of the inclined portion 44 and slides to the right in the drawing to be at a position corresponding to the upper end of the inclined portion 44. . This is because the distance A between the stopper 42 and the upper end of the inclined portion 44 is set to 1.1 mm, which is a value corresponding to the lower limit of the thickness of the disk D.

In this case, while the upper surface of the edge of the disk D is supported by the stopper 42, the side end surface of the disk D moves along the inclined portion 44 to be supported by the guide side wall 36. The top of the disc D is directed toward the disc seating surface 34 with the stopper 42 at the point.

Therefore, the disc D is supported at the end of the inclined surface 45 and the stopper 42, and the stopper 42 and the upper end of the disc D are opened to the outside of the disc seating surface 34. In the space of the inclined portion 44, the disk (D) should be able to flow and the disk (D) must rise along the inclined surface (45), but the disk (D) is due to the weight of the inclined surface (45) The force to continue to move downward is applied to the disc (D) is supported in the gap-free end of the inclined surface 45 and the stopper 42 without a gap. As a result, even if the shake occurs during the movement of the tray 30, the disk D remains almost vertical, and the phenomenon in which the upper end of the disk D opens from the disk seating surface 34 is suppressed.

Next, the case where the thickness of the disk D is about half of the prescribed value is shown in FIG. 5B. At this time, the lower end of the disk (D) is lowered along the inclined surface 45 of the inclined portion 44 is located in the middle of the inclined portion (44). This is because the thickness of the disk D is larger than the distance A between the top of the inclined portion 44 and the stopper 42.

Even in this case, in order to open the upper end of the disk D, the disk D must be in a flow state as in FIG. 5A, but the disk D is the inclined surface 45 and the stopper 42. The disk D is almost vertical or the upper end of the disk D is positioned at the stopper 42, so that the disk D is moved downward in the drawing due to its own weight. ). This state is well illustrated in FIG. 5B.

Finally, the case where the thickness of the disk D corresponds to the upper limit of the prescribed value is shown in Fig. 5C. At this time, the lower end of the disk (D) hardly enters the inclined portion (44), and the disk (D) is sandwiched between the stopper (42) and the support end (35). Therefore, the disk D is erected so that its upper and lower ends are substantially vertical as shown in FIG. 5C, and the disk D is kept in a vertical position for the same reason as in FIGS. 5A and 5B.

In the tray structure of the disc drive according to the present invention as described in detail above, when the disc drive is used vertically, the inclined portion for guiding the lower end of the disc is inclined upward in the centrifugal direction of the disc seating surface so that the disc having various thickness stops. To the point so that its top faces in the direction of the disk seat.

Therefore, the disk having various thicknesses within the prescribed value can be vertically placed so as not to fall off the disk seating surface of the tray used. This prevents the disk from interfering with other parts of the set during the tray loading and unloading of the disk, thereby preventing damage from being removed from the tray during the loading and unloading of the disk.

Claims (5)

A tray main body which is formed continuously on the disk seating surface and the disk seating surface and has a disk support end for supporting the outer peripheral portion of the disk; A guide side wall which forms a step between the upper surface of the tray body and the disk seating surface to support the side of the disk; At least one stopper formed to extend toward the center of the disk seating surface from the tray body to support the edge of the disk in a state in which the tray body is standing vertically; The tray main body is formed at a position corresponding to the lower end of the disk in a vertical position, and guides the upper end of the disk toward the disk seating surface with the stopper as a point, and comprises an inclined portion having an inclined surface. Disk drive tray structure. The tray structure of claim 1, wherein the inclined portion is formed to be inclined upwardly in the centrifugal direction of the disk seating surface at a support end formed around the edge of the disk seating surface. The tray structure of claim 2, wherein the inclined portion is formed at both ends of the tray main body in which the guide side wall is not formed at predetermined intervals. 4. A method according to any one of claims 1 to 3, wherein the spacing between the lower surface of the stopper and the support end corresponds to an upper limit of the disk thickness specification and the spacing between the lower surface of the stopper and the end of the inclined portion is equal to the disk thickness specification. A tray structure of a disk drive, which corresponds to a lower limit. The disk drive tray structure of claim 1, wherein the inclined portion is formed continuously at the disc support end, and the guide side wall is formed continuously in the inclined portion.