JPH03216857A - Loading mechanism for disk player - Google Patents

Abstract

PURPOSE:To simultaneously load plural disks without increasing the size of a player housing by constituting a loading mechanism of plural sheets of subtrays, a base tray which is attached to the player housing so that it can be freely pulled out, and a tray moving mechanism which moves subtrays or the base tray. CONSTITUTION:Plural subtrays 11 can be stacked up at intervals of a prescribed gap on a base tray 5, and a tray moving mechanism 50 is collectively or selectively engaged with the base tray 5 and subtrays 11 and is moved from a position on the outside of a disk player to a waiting position in the player housing. The structure is greatly simplified and is made compact because it is sufficient if this plane plate-formed subtrays 11 are stacked up at intervals of the prescribed gap on the base tray 5, and the tray moving mechanism 50 is miniaturized in comparison with a moving mechanism, where moving devices whose number corresponds to the number of disks are stacked up, because plural sheets of subtrays are moved back and forth with one tray moving mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Application The present invention relates to a loading mechanism for loading and unloading a disc in a disc player.

(Prior art) Many stationary compact disc players have a system in which a disc is placed on a bow-shaped tray and inserted into the player. There is a demand for a player that allows two discs to be loaded into one player.

Players that meet this request include, for example, JP-A-1-71
There is a disk player shown in Publication No. 339, in which trays (5) and (6) are arranged in two stages, upper and lower.
These trays (5). (6) to motor (28),
Two disks can be stored at the same time by moving them separately using drive mechanisms such as (29).

(Problem to be solved by the invention) However, with the above technology, it is necessary to prepare a drive mechanism such as a motor as a set corresponding to the discs, and when a player that can load three or more discs at the same time is required. for,
The drive mechanism will be stacked up for the number of disks,
The player housing becomes proportionally taller and larger.

This makes it difficult to put into practical use a player that can simultaneously insert four to six discs.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a disc player that allows four or more discs to be loaded simultaneously without increasing the size of the player housing.

(Means for Solving the Problems) In order to achieve the above object, the present invention comprises a plurality of sub-trays, a base tray detachably attached to a player housing, and a tray moving mechanism for moving the sub-trays or the base tray. This constitutes an opening mechanism.

Furthermore, this loading mechanism includes a tray holder block and a holding block that hold the left and right ends of the sub-tray pulled out from the base tray, and a stopper mechanism that has a plurality of swing stoppers that engage with each of the notches of the sub-tray. to configure the loading mechanism.

(Function) The base tray can be stored by stacking a plurality of sub-trays at predetermined intervals, and the tray transfer mechanism moves the base tray and sub-trays all at once or selectively from the external position of the disc player to the player housing. Move to the internal standby position.

Alternatively, the tray moving mechanism moves the base tray and subtray from the standby position to the external position.

Further, the subtray pulled out from the base tray is held at its left and right ends by a tray holder block and a holding block, and is locked by a swing stopper of a stopper mechanism.

(Example) An example according to the present invention will be described below based on the accompanying drawings.

FIG. 9 is a perspective view of the disc player. The disc player 1 has a box-shaped player housing 2 with a rectangular opening 2a in the front surface, and a base tray 5 is fitted into this opening so as to be drawable. 4 is a selection switch related to player operation.

FIG. 4 is a plan view of the base tray, FIG. 5 is a view in the direction of arrow A, and FIG.
As shown in the figure, from the front plate 6, the top plate 7 and the side plate 8,
9 extends, and four stages of holding grooves 6a are formed on the back surface of the front plate 6.
* are provided, and four stages of sliding grooves 8a to 8d and 98 to 9d are provided at predetermined intervals on the inside of the side plate 8.9.

One end of a leaf spring 10g is screwed to one side plate 8,
A stopper 10 having a protrusion 10b attached to the other end is provided so as to be able to move in and out of the sliding grooves 8a to 8d.

Furthermore, as shown in FIG. 4, the top plate 7 has a disk entrance 7a, and a hole 7 in the front right and left corner of the opening 7a for inserting a finger.
b, 7b are drilled. Note that a U-shaped notch 9e is carved in the rear part of the side plate 9 (lower right side in the figure).

FIG. 7 is a plan view of the sub-tray, and FIG. 8 is a view taken in the direction of arrow C. The sub-tray 11 is a thin flat plate that is slightly thicker than the disk being handled, with a holding portion 11a at the left end of the figure and a sliding portion at the top and bottom ends of the figure. A large recess lid corresponding to a 12 cm diameter disk and a small recess lie corresponding to an 80lI1 diameter disk are provided concentrically in the portions flb and tic, and an elliptical notch 11f is further provided. This notch 11
f is for avoiding the movable range of the player's turntable and pickup during disc playback. One sliding part ttb is provided with a V-shaped notch ttg, and the other sliding part 11c is provided with a U-shaped notch 11h and a trapezoidal notch 11.
j is provided.

Further, 11k is a key portion, 11J2 is a tapered portion, and 11m is an end portion.

The holding portion 11a corresponds to the holding groove 6a in FIG. 4, and the sliding portions 1ib and tic correspond to the sliding grooves 8a to 8 in FIG.
d. Shapes and dimensions corresponding to 9a to 9d.

Therefore, the base tray 5 has four sub trays 11...
(Hereinafter, the four sub-trays will be placed in order from top to bottom in 11.12
, 13.14. The structure is the same, and the subtray 11 will be mainly explained as a representative example. ) can be stored horizontally in stacks.

In addition, since the stopper protrusion 10b of the base tray 5 is caught in the V-shaped notch 11g of the stored sub-tray 11..., it will not come off the fixed position even with a slight impact, and even if a certain amount of force is applied. It is designed to come off only when

FIG. 1 is an overall plan view of the loading mechanism, and FIG. 2 is a side view of the same. A metal frame 15, which is U-shaped in plan view, is disposed in the player housing 2 facing the opening 2a. The base tray 5 and sub tray 11
... is moving.

A subtray holder mechanism 20, a stopper mechanism 30, and a tray sliding mechanism 50 with a stopper release mechanism are arranged on the frame 15 as shown in the figure.

FIG. 10 is a plan view of the holder mechanism of the sub-tray, and FIG. 11 is a perspective view of the holder mechanism.
0 is an L-shaped slide base 2 as shown in Figure 11.
1, a cam roller 22 rotatably attached to this base, a tray holder block 23 integrally engaged with the slider base, and a coil spring 24.

Guide holes 21a are formed in the slide base 21, and sliding grooves 23 are formed in the tray holder block 23.
a... is formed.

A portion of the sliding grooves 23a are cut out, and sub-stoppers 25 consisting of a leaf spring 25a and a protrusion 25b are screwed into these cutouts 23b, respectively.

The slide base 21 is fixed to the player housing 2 by guide pins 26, as shown in FIG. 10, and the other end of the coil spring 24 is also fixed to the player housing side (metal frame 15).

Therefore, the slide base 21 is movable in the vertical direction in the figure, and the coil spring 24 always draws the slide base 21 downward in the figure.

Figure 's12 is a perspective view of the stopper mechanism, and the stopper mechanism 30 is a fixed rod 31 that stands up from the frame 15.
, the full release lever 32 inserted and supported by this rod, the swing stoppers 33 to 36, and these swing stoppers 33 to
36 and plate springs 37 to 40 that push out each of them.

As shown in the figure, the swing stopper 33 includes a protruding claw 33a and a truncated pyramid portion 33b, and has an elongated hole 33c.

A swinging rod 41 that stands up from the full release lever 32 is inserted into the elongated hole 33c.

FIG. 13 is an operational view of the stopper mechanism, and the swing stopper 33 is located at the trapezoidal notch 11 at the rear of the sub-tray 11.
meshes with j. Even if the sub-tray 11 tries to move in the direction of the arrow (■) shown in the figure, the front surface 33d of the protruding claw 33a is firmly engaged to prevent the movement. However, when the sub-tray 11 moves from the position shown by the imaginary line D in the direction of the arrow
is pushed out and the swing stopper 33 is rotated counterclockwise, so the subtray 11 is movable.

FIG. 3 is a perspective view of a tray moving mechanism with a stopper release mechanism, and the tray moving mechanism 50 includes a slider 51 fitted to a rail 16 horizontally attached to a frame 15, and a slider 51 bolted to the slider. An L-shaped holding block 52 guided by a guide rod 17, a feed screw 53 passing through this holding block, a driver 54 that is screwed into this feed screw and moves up and down, a wheel 55 that rotates the feed screw, and a worm 56. and a motor 57, and microswitches 58a to 58 stacked on the holding block 52.
8d, which move horizontally together with the slider 51 and the holding block 52.

The holding block has four sliding grooves 52a on the left side surface in the figure.
52d, and a large through-vertical groove 52e is bored in the center.

Further, the driver 54 has release pins 54b protruding to the left in the figure, to the upper right of the drive pin 54a1, perpendicular to the drive pin, and a tapered surface 54c extending to the lower right in the figure. It should be noted that when the driver element 54 is moved up and down by the feed screw 53, it comes into sliding contact with the surfaces 52f, 52f on the right side in the drawing of the holding block 52, so there is no risk of it spinning around idle.

That is, the drive pin 54a of the drive element 54 passes through the vertical groove 52e of the L-shaped block and engages with the U-shaped notch 9e of the front base tray 5, etc.

In the structure of the tray movement mechanism 50, the release pin 54b of the driver 54 cooperates with the full release lever 32 described in FIG. 12, or independently forces the swing stoppers 33 to 36 in the release direction. This is the main part of the stopper release mechanism that is driven automatically, and its operation will be described later. The operation of the loading mechanism of the disc player having the above configuration will be explained next.

As shown in FIG. 9, the sub tray 1 in the base tray 5
Place the disc CD... on the disc 1... and press one of the select switches 4.

Vinyl spindle 1 pivotally supported on frame 15 as shown in Figure 's2
8 rotates counterclockwise. As a result, the slider 51 and holding block 52 shown by imaginary lines in the figure are moved to the base tray 5.
and move to the right in the illustration. However, in this case, the drive bin 54a of the drive element 54 is connected to the U-shaped notch 9 of the base tray.
It meshes with e.

During this movement, the subtrays 11 are locked by the stopper 10 of the base tray 5, so there is no fear that the subtrays 11 will come off the base tray 5.

In the latter half of the movement, the base tray 5 pushes out the cam roller 22 shown in FIG.
generally retreats upwards in the drawing.

When the sub-tray 11 moves further, the tapered portion 11JZ of the sub-tray 11 pushes the swing stopper 33 of the stopper mechanism 30 open (
(See FIG. 13) Next, the protruding pawl 33a of the swing stopper engages with the trapezoidal notch 11j of the sub-tray 11. FIG. 1 shows the "external position", "standby position" and "
Through the above operation, the sub-tray 11 and the disc CD have reached the standby position in the player 1, and the key portion 11k of the sub-tray 11 is then locked by a loading means (not shown). Pull it to move the subtray 11 to the right. At this time, the base tray 5 is locked and does not move. As a result, only the pulled subtray 11 overcomes the locking force of the stopper 10 and moves to the right, reaching the playback position. At the playback position, the disc is rotated by a turntable (not shown) and traced by an optical pickup (not shown).

Therefore, in the state shown in Fig. N1, in this embodiment, three subtrays 12, 13, and 14 are kept in standby position, and one subtray 11 faces the playback position. , 13 or 14.

Further, in the state shown in FIG. 10, the drive pin 54a of the drive element 54
is engaged with the base tray 5. This is release pin 5
4b moves in the direction of arrow {circle around (2)} in FIG. 3 and rotates the full release lever 32 to the left. Then, the swinging rod 41 standing up from the full release lever 32 moves to the right in FIG. 12, causing the swinging stoppers 33 to 36 to rotate counterclockwise all at once.

Therefore, the swing stoppers 33 to 36 collectively rotate counterclockwise as shown by the imaginary lines in FIG. 13, and are in an unlocked state.

Therefore, the base tray 5 can be pulled out (toward the left in FIG. 10) with the sub-trays 11 stored in the drive bin 54a of the drive element 54.

Up to 4 sub trays 11 can be placed on the base tray 5.
We have described the action of loading and unloading ... all at once.

Next, an example will be described in which loading/unloading is performed while the base tray 5 is pulled out to the external position.

In FIG. 3, when operating the uppermost sub-tray 11, the motor 57 is rotated and the feed screw 53 is rotated to raise the driver 24 to the height of the sub-tray 11. The bin 54a leaves the base tray 5, passes by the other subtrays 12 to 14, and engages with the U-shaped notch llh of the subtray 11.

Figure 's14 is an action diagram, in which the drive pin 54a
Only the subtray 11 is moved to the standby position. At this time, the protrusion 25b of the holder mechanism 20
The subtray 11 is engaged with the notch 11g, and the subtray 11 is held at the standby position.

The motor 57 is rotated to lower the driver 54 to avoid the sub-tray 11, and then return the driver 54 to the external position.

By repeating this process, the subtrays 11 can be pulled out one after another from the base tray 5 and sent to the standby position.

Conversely, when the drive pin 54a of the driver 54 is engaged with the sub-tray 11 in the standby position, the swing stopper 33 that has locked the sub-tray 11 is forcibly rotated to the left by the release pin 54b, and the lock is released. . Therefore, the drive bin 54a
At this point, only the subtray 11 moves from the standby position into the base tray 5 at the external position.

In this way, by moving the driver 54 up and down and back and forth, any one of the sub-trays 11 can be reciprocated from the external position to the standby position.

Next, the loading/unloading operation when one subtray 11 is stored in the base tray 5 will be explained.

In FIG. 14, it is assumed that one subtray 11 is stored in the base tray 5 that has been pulled out to the external position, and the remaining subtrays 12 to 14 are in the standby position. in this case,
The subtrays 12 to 14 at the standby position are positioned by the holder mechanism 20 and swing stoppers 34 to 36.

Press the select switch 4 and move the base tray 5 to the driver 5.
4, it is transferred to the standby position. The base tray 5 pushes the slide base 21 outward in the middle thereof. However, since the swing stoppers 34 to 36 are still effective, the subtrays 12 to 14 in the standby position remain stationary. The moving base tray 5 reaches the standby position as shown in FIG. 1 while accommodating the subtrays 12 to 14 on standby.

Conversely, from the state shown in Figure 1, remove only one sub-tray,
When pulling out together with the base tray 5, for example, the drive bin 54a of the drive element 54 is engaged with the sub-tray 11, and the sub-tray 11 is forcibly moved from the standby position toward the external position. The subtray 11 pushes out the base tray 5 with its ends 11m, llm.

The above effects will be summarized and explained again with reference to FIGS. 15(a) to 15(e).

As shown in FIG. 15(a), it is possible to reciprocate from the external position to the standby position while all the sub-trays 11 to 14 are housed in the base tray 5, and at this time, the base tray 5 is forced by the driving bin 54a. Drive.

As shown in FIG. 15(b), any one of the sub-trays 11 to 14 can be reciprocated from the external position to the standby position while the base tray 5 remains in the external position. The drive pin 54a is forcibly driven.

￥N5 As shown in Figure (C), move the base tray 5 with the drive pin 54a (toward the right in the figure), or as shown in Figure 15 (d), move any sub-tray 11 in the base tray 5 to the drive bin. The base tray 5 and one sub-tray 11 can be taken in and out by moving the tray 25a (toward the left in the figure).

In addition, as shown in FIG. 15(e), an empty base tray 5
It is also possible to move it to a standby position.

(Effects of the Invention) As described above, in the present invention, the structure can be made extremely simple and compact because the thin flat sub-trays are simply stacked on the base tray with only predetermined intervals maintained.

Furthermore, since a plurality of sub-trays are reciprocated by one tray moving mechanism, compared to a conventional moving mechanism in which moving devices are stacked for the number of disks, the present invention consolidates the moving mechanisms and achieves miniaturization. As a result, the player housing can be made compact.

Furthermore, since only one tray moving mechanism is required regardless of the number of sub-trays, it is possible to easily construct a disc player that can mount, for example, six or more discs.

[Brief explanation of drawings]

FIG. 1 is an overall plan view of the loading mechanism according to the present invention;
FIG. 2 is a side view of the same, FIG. 3 is a perspective view of the tray moving mechanism with a stopper release mechanism, FIG. 4 is a plan view of the base tray, FIG. Line sectional view, 's7
The figure is a plan view of the subtray, 's8 is a view in the direction of arrow C, FIG. 9 is a perspective view of the disc player, FIG. 10 is a plan view of the holder mechanism of the subtray, FIG. 11 is a perspective view of the holder mechanism, and FIG. 12 is a perspective view of the stopper mechanism, FIG. 13 is an operational view of the stopper mechanism, FIG. 3414 is an operational view, and FIG. 15(a)
-(e) are action explanatory diagrams. 1... Disc player, 5... Base tray, 1
1 to 14... Subtray, 11j... Notch of subtray, 23... Tray holder block, 30...
Stopper mechanism, 33-36... swinging stopper 50
... Tray movement mechanism, 52 ... Holding block. Patent applicant: Victor Japan Co., Ltd. Figure 12

Claims (3)

[Claims] (1) A thin flat sub-tray for storing discs, a base tray that stores the sub-trays stacked at predetermined intervals and is attached to the disc player so as to be freely drawn out; A loading mechanism for a disc player, comprising: a tray moving mechanism that selectively engages with one of the trays and reciprocates the trays all at once or selectively from a position outside the disc player to a standby position inside the player housing; (2) a thin, flat sub-tray for storing discs; a base tray that stores the sub-trays by stacking them at predetermined intervals and is attached to the disc player so that they can be freely drawn out; a tray moving mechanism that selectively engages with one of the base trays and reciprocates the trays all at once or selectively from a position outside the disc player to a standby position inside the player housing; A loading mechanism for a disc player consisting of a tray holder block and a holding block that hold the left and right ends of a sub-tray pulled out from a tray. (3) A subtray that is thin and flat and has a notch for storing discs, and a base tray that stores the subtrays by stacking them at a predetermined interval and is attached to the disc player so that they can be freely drawn out. , a tray moving mechanism that selectively engages with either the base tray or the sub-tray and reciprocates them all at once or selectively from a position outside the disc player to a standby position inside the player housing; and a notch in the sub-tray. A loading mechanism for a disc player, comprising: a stopper mechanism that has a plurality of swing stoppers that engage with each of the sections, and is capable of locking and releasing any sub-tray.