JPH08180535A - Disk reproducing device - Google Patents

Abstract

PURPOSE: To reduce the depth of a device. CONSTITUTION: For fitting a recording disk medium disk 12 to the device, the recording medium disk is housed detachably and at the same time, a disk tray 8 which slides along the inside and outside of an external enclosure 2 of the device is provided. After the disk tray 8 is pulled into the device, the deep side edge part is inclined so that it goes down with the front side edge part of the disk tray 8 as a support, and the recording media disk 12 is lifled from the disk tray 8 to be mounted on a turntable 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel disc reproducing apparatus. More specifically, the present invention aims to provide a new disc reproducing apparatus capable of reducing the depth of the apparatus.

[0002]

2. Description of the Related Art FIG. 14 shows an example of a conventional disc reproducing apparatus.

Reference numeral a denotes an outer casing in which various necessary members and mechanisms are arranged.

Reference numeral b denotes a front portion of the outer casing a, that is, a front panel, and a tray inlet / outlet c is formed in an upper portion of the front panel b.

Reference numeral d is a turntable arranged in the outer casing a.

Reference numeral e is a disc tray, which is provided so as to slide in the horizontal direction, and is also provided so as to move up and down in the outer casing a.

That is, when mounting the optical disk f,
4 (a), the optical disc f is inserted into the disc tray e in a state where it is pulled out of the outer casing a, and is drawn into the outer casing a as shown in FIG. 14 (b). As shown in FIG. 14 (c), the optical disc f is lowered, and the optical disc f is placed on the turntable d.

When taking out the optical disk f, first, the disk tray e in the state of FIG.
4 (b), the optical disc f is accommodated in the disc tray e during this period, and the disc tray e is pulled out of the outer casing a as shown in FIG. 14 (a). f is taken out from the disc tray e.

Incidentally, g is a door which closes the tray inlet / outlet c of the front panel b, and when the disc tray e is drawn into the outer casing a and lowered, the tray inlet / outlet c
Is to be closed.

[0010]

By the way, in the above-mentioned disc reproducing apparatus, in order to chuck the optical disc f on the turntable d, the disc tray e is used.
Must be drawn into the outer casing a and lowered, so that the tray entrance c of the front panel b remains open as it is. Therefore, the door g for closing the tray entrance c is required.

Further, in order to lower the disc tray e, it is necessary to retract the disc tray e into the outer casing a to some extent, which causes a problem that the depth dimension of the entire apparatus becomes large. Further, there is a problem that a certain depth is required to open and close the door g, which also increases the depth of the entire device.

[0012]

In order to solve the above-mentioned problems, the disc reproducing apparatus of the present invention mounts the recording medium disc in the device, accommodates the recording medium disc in an attachable / detachable manner, and removes it from the outside of the device. A disc tray that slides inside and outside the casing is provided, and after the disc tray is drawn into the apparatus, the recording medium disc is tilted so that the front end of the disc tray is a fulcrum and the rear end is lowered. Is designed to float above the disc tray.

Another embodiment of the disc reproducing apparatus of the present invention is such that the tray inlet / outlet formed in the front surface of the outer casing for inserting / removing the disc tray is closed by the inclined front end of the disc tray.

[0014]

Therefore, in the disc reproducing apparatus of the present invention,
It is not necessary to lower the entire disc tray inside the outer casing, and it is only necessary to tilt it backward and downward, so there is no need to pull the disc tray deep into the outer casing, and the depth dimension of the device can be reduced. .

Further, in another disc reproducing apparatus of the present invention, since it is not necessary to separately provide a door body for closing the tray entrance of the outer casing, the number of parts is reduced and the operation of such a door body is reduced. Since no space is required, the depth dimension can be reduced also in this respect.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the disk reproducing apparatus of the present invention will be described below with reference to the illustrated embodiments. In the illustrated embodiment, the present invention is applied to an optical disc recording / reproducing apparatus.

First, an outline of the optical disk recording / reproducing apparatus 1 will be described with reference to FIGS.

Reference numeral 2 is an outer casing, and 3 is a front portion thereof, that is,
It is a front panel, and a tray entrance / exit 4 is formed in the front panel 3.

Reference numeral 5 is a spindle motor arranged and fixed in the outer casing 1, and 6 is a turntable fixed to a rotary shaft 7 of the spindle motor 5.

Reference numeral 8 denotes a disc tray, which is in the shape of a shallow container and has a disc mounting recess 9 which is open upward. Reference numeral 10 is a notch formed in the front end of the disk mounting recess 9, and the bottom surface of the disk mounting recess 9 is formed so as to be inclined forward and downward. Further, the front wall 11 of the disc tray 8 is inclined so that its upper end slightly projects forward.

FIG. 1 shows a state in which the disc tray 8 is in the pulled-out position, and in this state, the optical disc 12 is mounted in the disc mounting recess 9 of the disc tray 8.

When the optical disc 12 is placed in the disc placing recess 9, the disc tray 8 is pulled into the outer casing 2 (see FIG. 2). In this state, the front wall 11 of the disc tray 8 is located substantially at the tray entrance / exit 4.

From the state shown in FIG. 2, the disc tray 8
3 is tilted about the front end as a fulcrum so that the rear end thereof descends, as shown in FIG. During this time, the turntable 6 is provided with the cutout hole 1 formed in the bottom wall of the disc tray 8.
The optical disk 12 is mounted on the turntable 6 by relatively moving up through the turntable 3.

Since the disc mounting recess 9 of the disc tray 8 has a notch 10 at its front end,
The cutout 10 does not escape and the optical disk 12 placed on the turntable 6 does not touch the disk tray 8.

By tilting the disc tray 8 as shown in FIG. 3, the front wall 11 thereof is positioned so as to close the tray inlet / outlet 4 of the front panel 3 of the outer casing 2.

In the above-mentioned optical disc recording / reproducing apparatus 1, the disc tray 8 is tilted so that the entire rear end does not move up and down in the outer casing 2 but the rear end moves up and down with the front end as a pivot. Therefore, it is not necessary to be deeply drawn into the outer casing 2 unlike the case where the whole device moves up and down, and the depth of the entire device can be reduced accordingly.

Further, since the front wall 11 of the disc tray 8 serves as a door for closing the tray inlet / outlet 4 of the outer casing 2,
Since it is not necessary to provide a separate door body, the number of parts can be reduced by that amount, and it is not necessary to secure a moving area for a separate door body, so that also the depth of the entire device can be reduced. it can.

Next, the drive means for the disc tray will be described.

Reference numeral 14 in the drawing denotes a disc tray, which has a rectangular shape elongated in the front-rear direction when seen in a plan view, and a shallow concave portion 15 for mounting a disc is formed on the upper surface thereof. The disk mounting concave portion 15 is composed of four concentric portions 15a, 15
b, 15c, and 15d, each having an optical disc of a different size to be mounted.

Reference numeral 16 denotes a cutout hole formed from the central portion of the disc tray 14 to the rear end thereof, the width of which becomes larger toward the rear end, and the disc tray 14 is formed at the rear end portion.
Has grown to nearly the full width of. And the cutout hole 1
Reference numeral 6 is for the turntable to be located in the disk mounting recess 15 and for the optical pickup to access the optical disk.

Reference numeral 17 is a notch formed in the front end of the disk mounting recess 15, and 17a is a disk mounting recess 15.
It is a crescent hole formed in the front end of a.
Reference numeral b denotes an inclined portion which is formed substantially in the front half of the disk mounting recess 15a following the cutout hole 17a and which is inclined downward to the front.
Reference numeral 7c denotes an inclined portion which is formed in a substantially crescent-shaped portion of the front end portion of the disk mounting concave portion 15b and is inclined downward to the front. The inclined portions 17b and 17c are continuous inclined portions.

The side walls 18, 18 'of the disc tray 14
Guided grooves 19 and 19 'whose front end is closed and whose rear end is opened are formed on the outer side surface of one of the guided grooves 19'.
A notch 20 for passing through is formed at a position closer to the rear side from the front end on the upper surface wall that defines the upper side of the.

Reference numeral 21 is a front wall of the disc tray 14, and the front wall 21 is inclined so that its upper end is located slightly on the front side.

A rack 22 is formed at the lower edge of the side wall 18 of the disc tray 14.

Reference numeral 23 is a loading base which is erected on the front half of one side of the mechanical chassis 24, and 25 is a stay which is erected on the front end of the other side of the mechanical chassis 24.

Reference numeral 26 is a loading sub-base which is disposed inside the loading base 23 and is tiltably supported by the loading base 23. Three supported pins 27, 27, 27 are provided on the surface of the loading sub-base 26 facing the loading base 23 in a protruding manner.

Reference numeral 28 denotes a tray guide shaft projectingly provided on the inner surface of the front end portion of the loading base 23.
A similar tray guide shaft 29 is also projectingly provided at a position facing the tray guide shaft 28 of No. 5.

The loading base 23 has a receiving hole 3 extending in an arc shape centered on the tray guide shaft 28.
0, 30, 30 are formed, and the receiving holes 30, 3 are formed.
The supported pins 27, 27, 27 of the loading sub-base 26 are slidably engaged with 0 and 30, whereby the loading sub-base 26 is tiltably supported by the loading base 23.

Reference numeral 31 is a sliding pin projecting from the side of the loading sub-base 26 facing the loading base 23.

Reference numeral 32 denotes a cam gear rotatably supported by the loading base 23, and a cam groove 33 is formed on the surface of the loading sub base 26 side. The cam groove 33 has an unchanged portion 33a formed in an arc shape around the center of rotation at a position near the outer periphery and the unchanged portion 33a.
And a changing portion 33b which is continuous with one end of and extends from there to a position closer to the center. A gear portion 34 is formed on the outer peripheral portion of the cam gear 32.

Therefore, the sliding pin 31 of the loading sub-base 26 is inserted into the guide slit 35 formed in the loading base 23 and extending in the substantially vertical direction, and its tip end slides on the cam groove 33 of the cam gear 32. It is freely engaged. The lower end portion 35a of the guide slit 35 is formed in an arc shape with the tray guide shaft 28 as the center, and when the sliding pin 31 is engaged with the cam groove 33, the arc of the guide slit 35 is formed. It is located in the portion 35a.

Reference numeral 36 denotes a tray guide shaft projecting from the same height as the tray guide shaft 29 at a position near the rear end of the inner surface of the stay 25.

Reference numeral 37 is a tray guide protrusion formed on the inner surface of the loading sub-base 26 so as to extend in the front-rear direction, and the sliding pin 31 of the loading sub-base 26 engages with the unchanged portion 33a of the cam groove 33. While the tray guide shaft 28 is positioned, the tray guide shaft 28 is positioned so as to extend horizontally at the same height.

The guided groove 19 on the right side of the disc tray 14 is slidably engaged with the tray guide shaft 28 and the tray guide ridge 37, and the guided groove 1 on the left side is provided.
9'is slidably engaged with the tray guide shafts 29 and 36, whereby it is slidable in the horizontal direction.

Reference numeral 38 denotes an idler gear rotatably supported on the loading sub-base 26. The idler gear 38 is formed by integrally forming a drive gear 38a and a driven gear 38b protruding from the outer end of the drive gear 38a. The drive gear 38a is meshed with the rack 22 of the disc tray 14, and the driven gear 38b has the sliding pin 31 and the cam groove 33.
The gear portion 34 of the cam gear 32 is engaged with the gear portion 34 while being engaged with the unchanged portion 33a.

Reference numeral 39 denotes an upper and lower frame, and arms 40 and 40 'are formed on the left and right, respectively, and supported pins 41 and 41' are projectingly provided at the base end portions of the arms 40 and 40 '. 41 is rotatably fitted in a support hole 42 formed in the lower end of the center of the loading base 23, and the other supported pin 41 ′ is rotatably fitted in a support member 43 formed in the bottom of the mechanical chassis 24. It is supported.

A driven pin 44 protruding outward is provided on the upper end portion of the right arm 40 of the upper and lower frame 39. The driven pin 44 is formed on the inner surface of the loading sub-base 26 and has a long length in the front-rear direction. It is slidably engaged with the hole 45. In addition, a support roller 46 is provided on the upper end of the left arm 40 '.
Are rotatably supported, and the support roller 46 is in rolling contact with the bottom surface of the disc tray 14.

Reference numeral 47 is a front panel forming the front surface of the outer casing, and a tray entrance / exit 48 is formed in the front panel 47.

Then, as shown in FIG. 8, the disc tray 14 is pulled out of the outer casing, the optical disc 49 is placed in the disc mounting recess 15, and then the cam gear is driven by a driving unit (not shown). 32 is rotated, the idler gear 38 meshed with the gear portion 34 is rotated, and the drive gear 38a feeds the rack 22 of the disc tray 14, so that the disc tray 14 is rotated by the tray guide shafts 28, 29, 36 and the tray guides. It is guided by the ridge 37 and drawn into the outer casing. During this time, the sliding pin 31 of the loading sub-base 26 is engaged with the cam groove 3 of the cam gear 32.
Since it is engaged with the non-changing part 33a of the No. 3, it maintains a horizontal posture.

Then, when the disc tray 14 reaches the retracted position as shown in FIG. 9, the sliding pin 31 of the loading sub-base 26 comes into engagement with the changing portion 33b of the cam groove 33. , The rear end is tilted so as to descend. As a result of this tilting, the driven gear 38b of the idler gear 38 is moved to the gear portion 3 of the cam gear 32.
Since the meshing with No. 4 is released, the rotation of the idler gear 38 is stopped.

With the tilting of the loading sub-base 26, the disk tray 14 also tilts so that the rear end of the guided groove 19, 19 'engages with the tray guide shafts 28, 29 and the rear end thereof descends. To be done. At this time, the tray guide shaft 36 on the rear side of the stay 25 is guided by the guided groove 19 '.
It comes out of the guided groove 19 'through the notch 20 formed in the upper surface of the. Further, the upper and lower frames 39 are also driven pins 4 thereof.
Since 4 is engaged with the elongated hole 45 of the loading sub-base 26, its supporting roller 46 tilts while supporting the bottom surface of the disc tray 14.

Then, as shown in FIG. 10, when the disc tray 14 is tilted, the optical disc 49 supported by the disc tray 14 is placed on a turntable (not shown) and lifted up from the disc tray 14. At this time, the portion of the optical disc 49 located at the front end is located at a position corresponding to the cutout portion 17 of the disc tray 14, so that contact with the disc tray 14 is prevented.

When the disc tray 14 is tilted in this manner, the front wall 21 of the disc tray 14 becomes substantially vertical, and the tray inlet / outlet 48 of the front panel is closed.

When the optical disc 49 on which recording or reproduction has been completed is ejected, the cam gear 32 rotates in the opposite direction to that described above, whereby the loading sub-base 26 is rotated so that its rear end rises. The disc tray 14 and the upper and lower frames 39 are also rotated. Then, when the loading sub-base 26 becomes horizontal, the driven gear 38b of the idler gear 38 again meshes with the gear portion 34 of the cam gear 32. During this time, the position of the disc tray 14 toward the left from the center of the bottom surface is pushed up by the support roller 46 of the upper and lower frames 39, so that the left side portion of the disc tray 14 is surely raised, and as a result, the stay 25 The rear tray guide shaft 36 passes through the notch 20 and is positively engaged with the guided groove 19 '.

When the cam gear 32 further rotates, the disc tray 14 is pulled out to the pull-out position shown in FIG.

[0056]

As is apparent from the above description, the disk reproducing apparatus of the present invention accommodates the recording medium disk in the apparatus in an attachable / detachable manner when mounting the recording medium disk in the apparatus. A disc tray that slides in and out is provided, and after the disc tray is drawn into the apparatus, the recording medium disc is slanted so that the rear end is lowered with the front end of the disc tray as a fulcrum. It is characterized by being lifted from the tray.

Another disc reproducing apparatus of the present invention is characterized in that a tray inlet / outlet formed on the front surface of the outer casing for inserting / removing the disc tray is closed by the front end portion of the inclined disc tray. To do.

Therefore, in the disc reproducing apparatus of the present invention, it is not necessary to lower the entire disc tray in the outer casing, and it is only necessary to incline it to the rear downward direction. Therefore, it is necessary to pull the disc tray deep into the outer casing. It is possible to reduce the depth dimension of the device.

Further, in another disc reproducing apparatus of the present invention, since it is not necessary to separately provide a door body for closing the tray entrance of the outer casing, the number of parts is reduced and the operation of such a door body is reduced. Since no space is required, the depth dimension can be reduced also in this respect.

It should be noted that the specific shapes and structures of the respective portions shown in the above-mentioned embodiments are merely examples of the embodiment when the present invention is carried out, and the technical form of the present invention can be realized by these. The range should not be construed as limiting.

[Brief description of drawings]

FIG. 1 is a schematic sectional view showing an outline of a disc reproducing apparatus of the present invention together with FIGS. 2 and 3, and this figure is a diagram showing a state in which a disc tray is in a pull-out position.

FIG. 2 is a view showing a state in which a disc tray is pulled in.

FIG. 3 is a view showing a state where a rear end portion of the disc tray is lowered.

FIG. 4 is a view showing a specific example of the disc tray drive mechanism together with FIGS. 5 to 13, and is a plan view of the disc tray.

FIG. 5 is a central longitudinal sectional view of the disc tray.

FIG. 6 is a side view of the disc tray.

FIG. 7 is a schematic plan view showing a state where a disc tray is removed.

FIG. 8 is a side view of an essential part showing a state in which the disc tray is in the pull-out position.

FIG. 9 is a side view of an essential part showing a state where the disc tray is pulled in.

FIG. 10 is a side view of essential parts showing a state where the rear end of the disc tray is lowered.

FIG. 11 is a side view showing a loading base and a loading sub base.

FIG. 12 is a schematic sectional view showing a guide portion of a disc tray.

FIG. 13 is a schematic front view showing upper and lower frames.

14A and 14B schematically show an example of a conventional disc reproducing apparatus, wherein FIG. 14A is a schematic sectional view showing a state where the disc tray is pulled out, and FIG. 14B shows a state where the disc tray is pulled out. A schematic sectional view, (c) is a schematic sectional view showing a state where the disc tray is lowered.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 optical disk recording / reproducing apparatus (disk reproducing apparatus) 8 disk tray 10 notch 11 front wall (front end of inclined disk tray) 12 optical disk (recording medium disk) 14 disk tray 17 notch 21 front wall (of inclined disk tray) Front end) 49 Optical disc (recording medium disc)

Claims (3)

[Claims] 1. When mounting a recording medium disc on an apparatus, a disc tray is provided for accommodating the recording medium disc in a removable manner and sliding inside and outside an outer casing of the apparatus, and the disc tray is provided inside the apparatus. A disc reproducing apparatus, wherein a recording medium disc is lifted from a disc tray by inclining the rear end of the disc tray after being pulled in, with the front end of the disc tray as a fulcrum. 2. A recording medium disc is prevented from contacting the disc tray by forming a notch in the front side portion of the disc tray and positioning the recording medium disc in the notch when the disc tray is inclined. The disk reproducing apparatus according to claim 1, wherein the disk reproducing apparatus is configured as described above. 3. The front end of the inclined disc tray formed on the front surface of the outer casing for inserting and ejecting the disc tray is closed by the front end portion of the inclined disc tray. Disc player.