JPH04205755A - Loading mechanism for disk player - Google Patents

Abstract

PURPOSE:To improve reliability by turning the side surface of a sub tray at a standby position with the movement of a base tray. CONSTITUTION:The sub trays 12-14 are locked and held by a fixed sub tray holder 31 on the side of the side surface plate 9 of the base tray 5, and a sliding sub tray holder 55 is moved to the left by interlocking with the tray 5's moving to the left, so that the holder 55 holds a sliding part 11c even when the trays 12-14 are separated from the tray 5. Therefore, by interlocking with the tray 5's moving to the left, a sub tray holder 23 is turned to hold the sliding parts of the trays 11-14 at the standby position and the holder 55 is moved to the left to hold other sliding parts of the trays 11-14, so that the trays 11-14 are surely held at the standby position. Thus, the reliability and quality are improved.

Description

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

(Prior art) Many compact disc players are installed by placing the disc on a drawer-shaped tray and inserting it into the player. There is a demand for a player that allows two discs to be loaded into one player.

Players that meet this requirement include, for example, Japanese Patent Laid-Open No. 1-7
This disk player has trays (5L (6)) arranged in two stages, upper and lower, and these trays (5) and (6) are connected by a motor (28L (29)).
Two discs can be stored at the same time by moving them separately using a drive mechanism such as the following.

(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 if 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 simultaneous loading of four or more discs without increasing the size of the player housing, and to provide a loading mechanism for a disc player that allows reliable loading operation. do.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems, and a first invention includes a flat subtray on which a disk is placed, and the subtray on which the disk is placed. A plurality of base trays are stacked and stored at predetermined intervals and are detachably attached to the disc player, and the sub-trays housed in the base tray are positioned in a standby position inside the player housing. In a loading mechanism for a disc player, the loading mechanism includes a tray moving mechanism that reciprocates the base tray between an external position of the disc player and the standby position. The loading mechanism for a disc player is characterized in that it includes a sub-tray holter that is displaced so as to hold the side surface of the sub-tray in a certain position.

In addition, a second invention provides a flat sub-tray on which a disc is placed, and a plurality of sets of the sub-trays on which the disc is placed, stacked at a predetermined interval and stored, and which can be freely pulled out into a disc player. A tray that reciprocates the base tray between a position outside the disc player and the standby position with the attached base tray and the sub-tray stored in the base tray located at a standby position inside the player housing. In the loading mechanism for a disc player, the sliding sub-1 slides a side surface of the sub-tray located at the standby position in the pull-out direction in conjunction with an operation of pulling the base tray to the external position. This is a loading mechanism for a disc player characterized by a different aspect.

(Example) An example of the loading mechanism of a disc player according to the present invention will be described based on the accompanying drawings. External structure of disc player, shape of base tray and subtray, and structure of loading mechanism.

A detailed explanation will be given in order of the following items: 1. Operation of Loading Mechanism.

<External Structure of Disc Player> FIG. 8 is an external 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, and a base tray 5 in the opening 2a. is inserted so that it can be pulled out. 4 is a selection switch related to player operation. The base tray 5 can accommodate a plurality of subtrays 11 to 14, and each subtray 11 to 14 can hold a disc CD.
A plurality of sets are placed on the base tray 5. In addition, the base tray 5 has four sub trays 1 in the embodiment.
1 to 14, but the present invention is not limited to this, and it is also possible to have an oval configuration to accommodate even more sub-trays and discs.

As described later, the base tray 5 is equipped with a disk C.
You can pull out the sub-trays 11 to 14 on which discs D are stored to the external position, or pull out only the sub-trays (11 to 14) that require replacement to the external position, and then remove the remaining discs (CDs) or the sub-trays on which they are placed. (11-14
) can be placed in the standby position, and furthermore, a desired disc CD can be pulled out from the standby position to the playback position and played.

Base tray 5 and sub trays 11 to 14 using Figures 4 to 7.
This will be explained based on the shape of .

4 is a plan view of the base tray, FIG. 5 is a view taken in the direction of arrow A in FIG. 4, and FIG. 6 is a cross-sectional view taken along the line B-B in FIG. A top plate 7 and side plates 8 and 9 extend from the front plate 6, and the back of the front plate 6 is provided with four holding grooves 6a, and the inside of the side plates 8 and 9 are provided with four holding grooves, respectively. Step sliding grooves 8a-8d, 9a-9d are provided at predetermined intervals. A leaf spring 10 is attached to one side plate 8.
A stopper 10, which is formed by screwing one end of the stopper a and attaching a protrusion 10b to the other end, is provided so as to be able to move in and out of the sliding grooves 8a to 8d. Further, an inclined surface 8e is formed at a corner of the side plate 8 close to the stopper 10.

Furthermore, as shown in FIG. 4, the top plate 7 has a disk entry/exit lower a approximately in the middle, and holes 7b, 7b for inserting fingers into the upper and lower front corners thereof.

Next, FIG. 7 is a plan view of the subtray, and the subtray 1
Since subtrays 1 to 14 have the same shape, the subtray 11 will be explained here. In addition, in the following explanation, the subtray 11
The parts marked with the auxiliary symbol are the pond subtrays 12 to 14.
The same auxiliary symbols will be used to describe the same parts of the same shape, or illustrations will be omitted.

The sub-tray 11 is formed of a thin flat plate that is slightly thicker than the disc CD to be handled, and a holding portion 1 is provided at the left end of the sub-tray 11.
1a, sliding part 11b which becomes the side surface at the upper and lower ends of the figure, l large recess l corresponding to 12an diameter disc CD for approximately medium heat IC1
ID and small recess li corresponding to 8cm diameter disc CD
e are provided concentrically, and an elliptical notch 11f is further provided. This notch 11f is provided to avoid the movable range of a turntable or pickup (not shown) in the player 1 (FIG. 8) during disk reproduction. One sliding portion 11b is provided with a V-shaped notch 11g, and the other sliding portion 11c is provided with a U-shaped notch 11h. Also, llk is the oyster part.

Note that the holding portion 11a corresponds to the holding groove 6a in FIG. 5, and also corresponds to the sliding portions 11b (~14b) and 11c (~14c).
6 is the sliding groove 8a (~8d) in FIG.

9a (~9d).

Therefore, the base tray 5 has four sub trays 11 to 14.
(Hereinafter, the four sub-trays will be placed in order from top to bottom in 11.12
, 13.14. ) can be stored horizontally in stacks.

In addition, since the stored sub-trays 11 to 14 are engaged with the protrusions 10b (Fig. 4) of the stopper 10 of the base tray 5 in their V-shaped notches 11g to 14g, they will not come off from their fixed positions even with a slight impact. The structure is such that it only comes off when a certain amount of force is applied. The operation of releasing the stopper 10 is performed when pulling out ~14k to the oyster portion 11 of the sub-trays 11-14 by an unillustrated pull-out means and performing a reproducing operation, or when one of the sub-trays 11-14 (to be described later) is moved to the standby position. It is now time to lock the base tray 5 and pull it out to the external position. When the base tray 5 is pulled out to the external position, the disc CD can be replaced.

Structure of Loading Mechanism> Here, the structure of the rope ink mechanism of a disc player, which is the main part of the present invention, will be explained with reference to FIGS. 1 to 3.

FIG. 1 is an overall perspective view of the loading mechanism of a disc player according to the present invention, FIG. 2 is a partial perspective view of the sub-tray holder mechanism shown in FIG. 1, and FIG. 3 is a sub-tray holder mechanism shown in FIG. 1. FIG. 3 is a plan cross-sectional view showing a 1-ray standby position locking mechanism and a sub-tray selection mechanism.

When the player housing 2 shown in Fig. 8 is opened, the first
A loading mechanism as shown in the figure is provided. Also,
The loading mechanism shown in FIG.
- 14, sub-trays 12-14 are locked in the standby position, and sub-tray 11 is pulled out together with base tray 5.

That is, in FIG. 1, a base tray 5 is provided on a U-shaped frame 15 having side surfaces 15b and 15c formed on both sides of a flat surface 15a, so as to be freely drawn out. This base tray 5 has a plurality of sub trays 1 as described above.
1 to 14, each sub tray 11 to 14
A disc CD (Fig. 8) is placed on the subtray 11.
-14 can be freely pulled out together with the base tray 5, and, as will be described later, are structured so that any one of the sub-trays 11-14 can be selectively stopped at a standby position.

The frame 15 includes a sub-tray holder mechanism 20 on the side surface 15b, a sub-tray standby position locking mechanism and a sub-tray selection mechanism 30 on the side surface 15c. Tray moving mechanisms 50 are arranged as shown.

The sub-tray halter mechanism 20 has sliding parts 11b to 14 that form the side surfaces of the sub-trays 11 to 14 that are locked in the standby position by an operation that will be described later in conjunction with the movement of the base tray 5.
b (Fig. 7).

The sub-tray holder 1fiW20 also shown in FIG. 2 is disposed on the side surface 15b of the frame 15 or the sub-tray boulder base 21, which is rotatably displaced clockwise around a shaft 22 at one end 21a by the tensile force of a spring 26. . Further, the other end 21b of the sub-tray holder base 21 is provided with a sub-tray holder 23 that is rotatably displaced counterclockwise around a shaft 24 by the tensile force of a spring 27. The subtray holter 23 has four elongated holding grooves 23a to 23d formed therein, and these holding grooves 23a
-23d are in a corresponding positional relationship with the sliding grooves 8a-8d (FIG. 6) of the base tray 5, that is, the frame 15
They are positioned at the same height from the flat surface 15a. The holding grooves 23a to 23d of the subtray holter 23 can hold the sliding parts 11b to 14b (FIG. 7) of the subtrays 11 to 14 that are locked in the standby position by the operation described later. ing. Further, a roller 25 is rotatably attached to the protrusion 23e of the sub-tray holder 23, and this roller 25 rolls on the side plate 8 of the base tray 5 during the operation described later to rotate the sub-tray holder 23. It affects posture.

In addition, the spring hook part 2 of the sub-tray halter base 21
Spring 26 latched to 1d. Subtray halter 2
Spring 2 hooked to spring hook portion 23f of No. 3
The other end of 7 is hung on frame 15. Further, the bent piece 21c of the sub-tray holder base 21 is formed to serve as a stopper when the sub-tray holder 23 rotates.

Next, the subtray standby position locking mechanism and subtray selection mechanism 30 provided on the side surface 15c selectively lock any of the subtrays 11 to 14 housed in the base tray 5 to the standby position, and subtray 11~
This is a mechanism for selectively unlocking any one of 14.

A fixed sub-tray holder 31 is fixed to the side surface 15c of the frame 15 on the right side in FIG.

This fixed sub-tray holder 31 has four stages of holding grooves 31a~
31d are formed, and these holding M 31a to 31d
are the sliding grooves 9a and 'T-9d (sixth) of the base tray 5.
), and the sub tray 11
The side surfaces of the subtrays 11 to 14 can be held while locking the U-shaped notches 11h to 14h (FIG. 7).

That is, to explain the uppermost holding groove 31a among these holding grooves M31a to 31d as a representative, a hole 31e is bored in the vicinity of the holding groove 31a as shown in FIG. Compression spring 32 inside 31e
A stepped pin 32 is provided so as to be freely protrusive and retractable via a. When the stepped pin 32 protrudes into the U-shaped notch 11h of the sub-tray 11, the sub-tray 11 is locked at the standby position. Further, a double-shaped arm 33 with a roller 38 pivoted on one end close to the stepped pin 32 is provided.
The other end of this arm 33 is in contact with the stepped pin 32, while the roller 38 is a selection cam formed with a notch 39a and a cam surface 39b. It is now possible to transfer based on three criteria. Then, the roller 38 or the cam surface 3 of the three cams for selection
9b, the arm 33 rotates clockwise about the shaft 37 against the compression spring 32a, and holds the stepped pin 32 in a protruding state.
A stepped pin 32 is installed in the U-shaped notch 11h of the sub-tray 11.
protrudes and locks the sub-tray 11 at the standby position. Also, the selection cam 39 rotates in the direction of the arrow, and the roller 38
When the selection cam 39 does not fit into the notch 39a, the arm 33 rotates counterclockwise about the shaft 37 due to the biasing force of the compression spring 32a, and the stepped pin 32 is thereby released from its protruding state. , the locked state with the U-shaped notch 11h of the sub-tray 11 is released.

Returning to FIG. 1, the subtray standby position locking mechanism and subtray selection mechanism 30 having the above-described structure include arms 33 to 36 corresponding to the holding grooves 31a to 31d of the fixed subtray holter 31, respectively. The arms 33 to 36, including the arm 33 described above, can each independently rotate about a shaft 37, and the arms 33 to 36 can be rotated independently.
A roller 38 pivoted at one end of the roller 38 is also shifted along different selection cams 39 to 42, respectively. Further, the selection cams 39 to 42 are fixed to a shaft 43, and the notches 39a to 42a formed in the respective selection cams 39 to 42 are fixed to the shaft 43 in phase with each other, and the selector switch 4 (Fig. 8), one of the subtrays 11 to 14
Only the selected sub-tray can be unlocked in the standby position. That is, in this lock release operation, if the selected subtray is the subtray 11, the worm 4 fixed to the shaft of the motor 45
6 rotates, the worm wheel 44 fixed to the lower end of the shaft 43 rotates, and the notch 39a of the selection cam 39 corresponding to the sub-tray 11 is fitted into the roller 38 as described above, and the stepped pin 32 protrudes. The state is released and the subtray 11 is unlocked. At this time, the rotation state of the arm 33 is detected by a microswitch 47. and,
The unlocked sub-tray 11 is shown in the figure (double-dashed line shown)
It is stored in the base tray 5 as shown in FIG. 2, or taken out to the playback position.

Next, the tray moving mechanism 50 provided on the side surface 15c will be described.

The tray moving mechanism 50 allows the base tray 5 to be freely pulled out, and the sub-trays 11 to 11 are locked in a standby position by an operation described below in conjunction with the movement of the base tray 5.
This is a mechanism for holding 14 sliding parts 11c to 14C (Fig. 7).

A kite rail 52 is horizontally suspended between a holding plate 51 fixed to the side surface 15c of the frame 15 on the left side in FIG. 1 and the above-mentioned fixed subtray holter 31. Further, a base tray holder 53 having a through hole 53a and a sliding subtray holder 55 having a through hole 55be are connected to links 56 and 57, which will be described later, to the kite rail 52 so that they can slide on the guide rail 52. It has become. Further, one end 53d of the base tray holder 53 is fixed to the side plate 9 of the base tray 5, and a rack 54 is fixed to the other end 53c via the kite rail 52. On the other hand, the sliding subtray holter 55 has four stages of holding grooves 55a to 5.
5d are formed, and these holding grooves 55a to 55d have a corresponding positional relationship with the sliding grooves 9a to 9d (FIG. 6) of the base tray 5, and the sliding parts 1 of the sub trays 11 to 14
1c to 14c (Fig. 7) can be held while sliding. In addition, the base tray halter 5
A link 56 is pivotally attached to the shaft 58 on the surface 53b of the sliding subtray holder 55, a link 57 is pivotally attached to the shaft 60 on the surface 5.5f of the sliding sub-tray holder 55, and the links 56 and 57 are attached to the shaft 59. are connected by. When the gear 61 fixed to the shaft of the motor 62 fixed to the side surface 15c of the frame 15 is rotated, the base tray holder 53 fixed to the rack 54 is integrated with the rack 54 as described above, and the kite rail The base tray 5 fixed to the base tray holder 53 can also be moved in the left and right direction (in the direction of the arrow). Further, in conjunction with the movement of the base tray 5, the sliding subtray holder 55 also moves the sliding portions 11 of the subtrays 11 to 14.
It has a structure that can hold c to 14c while sliding.

Operation of Loading Mechanism> The operation of the loading mechanism will be explained using FIGS. 9 to 11.

FIG. 9 shows that the base tray 5 is connected to the player housing 2 (eighth
The subtrays 11 to 14 are housed in the base tray 5, and the tips of the subtrays 11 to 14 are engaged by a subtray standby position locking mechanism and a subtray selection mechanism 30. It has been stopped. In order to play the desired disc CD (FIG. 8) placed on the sub-trays 11 to 14 from this state, the sub-tray on which the desired disc CD is placed is unlocked by the method described above, and then the desired disc CD is played back. The keys (11 to 14) of the sub-trays (11 to 14) on which disc CDs are placed
This is possible by pulling out k) to the playback position using a pull-out means (not shown). Note that the reproduction operation is performed by a well-known disk reproduction means, and detailed description thereof will be omitted here.

Next, FIG. 10 shows a state in which the base tray 5 is being pulled out from the player housing 2 toward the external position. In addition, in this state, the top subtray 11 is stored in the base tray 5, and the bottom subtrays 12 to 1 are stored in the base tray 5.
4 is locked at the standby position by a subtray standby position locking mechanism and a subtray selection mechanism 30. As shown in the figure, when the base tray 5 is pulled out toward the external position, the sub-tray boulder mechanism 20 begins to operate on the side plate 8 side of the base tray 5. That is, when the roller 25 pivoted on the sub-tray holder 23 moves along the side plate 8 and reaches the inclined surface 8e of the side plate 8, the transfer is about to be canceled, and the sub-tray holder base 21 moves along the shaft 22. The sub-tray holder 23 is rotated clockwise at the center by the tensile force of the spring 26 (Fig. 2) to tilt the sub-tray holder 23 as shown in the figure, and the holding grooves 23b to 23d of the sub-tray holder 23 near the shaft 24 (Fig. 3) ) begin to hold the sides of the sub-trays 12-14. On the other hand, the side plate 9 of the base tray 5
On the side, the sub-trays 12 to 14 are held in place by a fixed sub-tray holter 31 of a sub-tray standby position locking mechanism and a sub-tray selection mechanism 30, and a sliding sub-tray holter 55 is located close to the fixed sub-tray holter 31.
is located.

Therefore, in FIG. 10, the subtrays 12 to 14 located at the standby position are replaced by the subtray holder 2 at the playback position.
3. The fixed sub-tray holter 31° is held by the sliding sub-tray holter 55, and on the opposite side are the sliding grooves 8b to 8d of the bases 1 to 5.

9b to 9d (Fig. 6). In addition, the sub-tray 1 on which the disc CD located in the standby position is placed
It is obvious that it is also possible to pull out and play a desired disc CD from discs 2 to 14.

Furthermore, FIG. 11 shows a state in which the base tray 5 is completely pulled out to the outside position. Further, in this state, the disc CD (FIG. 8) placed on the sub-tray 11 can also be replaced.

In the state shown in FIG. 11, the rotation of the roller 25 on the side plate 8 of the base tray 5 is completely released, and the sub-tray holder 23 is moved around the shaft 24 by the spring 27 (the second
The holding grooves 23b to 23d of the subtrays 12 to 14 (Fig. 2) are rotated counterclockwise by the tensile force of the subtrays 11 to 14 (Fig. 7), and the sliding parts 11b to 14b of the subtrays 11 to 14 (Fig. 7)
can be held completely. On the other hand, base tray 5
On the side plate 9 side, the sub trays 12 to 14 are connected to the sub 1 to ray standby position locking mechanism and sub tray selection m'ff430.
The base tray 5 is still locked and held by the fixed sub-tray holter 31, and the sliding sub-tray holter 55 is also moved to the left in conjunction with the leftward movement of the base tray 5.
Even if the subtrays 12 to 14 are detached from the base tray 5, the sliding subtray holter 55 holds the sliding parts 11c to 14C (FIG. 7).

Therefore, in FIG. 11, in conjunction with the leftward movement of the base tray 5, the subtray holder 23 holds the sliding parts 11b to 14b (FIG. 7) of the subtrays 11 to 14 located in the standby position. At the same time, the sliding subtray holter 55 moves to the left and holds the sliding parts 11c to 14C (Fig. 7) of the subtrays 11 to 14, so that the subtrays 12 to 14 are securely in the standby position. Retained. In the above embodiment, the subtray 1 located at the standby position
1 to 14, the sliding parts 11b to 14b
(Fig. 7) side and the sliding parts 11c to 14c (Fig. 7) side have different holding structures, but the present invention is not limited to this, and the same holding mechanism may be used on both sides. It goes without saying that both sides may have the sub-tray holder 23 structure or both sides may have the sliding sub-tray holder 55 structure.

(Effects of the Invention) As described above, in the loading mechanism of the disc player according to the present invention, when the base tray is pulled out to the external position, the side surface of the sub-tray located at the standby position is moved to the base tray. The tray is held by a sub-tray holter that rotates in conjunction with the movement of the tray. As a result, the sub-tray located at the standby position is reliably held, which can greatly contribute to improved reliability and quality.

According to a second aspect of the present invention, when the base tray is pulled out to an external position, the side surface of the sub-tray located at the standby position is held by a sub-tray holder that slides in conjunction with the movement of the base tray. As a result, as in the first aspect, the sub-tray located at the standby position is reliably held, which can greatly contribute to improved reliability and quality.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of the loading mechanism of a disc player according to the present invention, FIG. 2 is a partial perspective view of the sub-tray holder mechanism shown in FIG. 1, and FIG. 3 is a sub-tray shown in FIG. 1. 4 is a plan view of the base tray, FIG. 5 is a view taken along arrow A in FIG. 4, and FIG. 6 is taken along line BB in FIG. 4. 7 is a plan view of the subtray, FIG. 8 is an external perspective view of the disc player, and FIGS. 9 to 11 are diagrams for explaining the operation of the loading mechanism of the disc player. 1... Disc player, 2... Player housing, 5... Base tray,
11-14...Sub tray, 11b-14b...Side surface (sliding part), 11c-14c
...Side surface (sliding part), 20...Subtray holder mechanism, 21...Subtray holder base, 23...Subtray holter, -25= 23a to 23d...Retaining groove, 30. ... Sub-tray standby position locking mechanism and sub-tray selection R structure, 31... Fixed sub-tray holder, 50... Tray moving mechanism, 55... Sliding sub-tray holter, 55a to 55d... Holding groove, 56.57...Link. Patent applicant: Japan Victor Co., Ltd. No. 11

Claims (2)

[Claims] (1) A base tray that stores a plurality of flat sub-trays on which discs are placed, and the sub-trays on which the discs are placed, stacked at a predetermined interval, and that is detachably attached to a disc player. and a tray moving mechanism that reciprocates the base tray between a position outside the disc player and the standby position with the sub-tray housed in the base tray positioned at a standby position inside the player housing. A loading mechanism for a disc player according to the present invention, further comprising a sub-tray holder that is displaced to hold a side surface of the sub-tray located at the standby position in conjunction with an operation of pulling out the base tray to the external position. Player loading mechanism. (2) A base tray that stores a plurality of flat sub-trays on which discs are placed and the sub-trays on which the discs are placed, stacked at a predetermined interval, and that is detachably attached to the disc player. and a tray moving mechanism that reciprocates the base tray between a position outside the disc player and the standby position with the sub-tray housed in the base tray positioned at a standby position inside the player housing. A loading mechanism for a disc player according to the present invention, further comprising a sliding sub-tray holder that slides a side surface of the sub-tray located at the standby position in the pull-out direction in conjunction with the operation of pulling the base tray to the external position. A loading mechanism for a disc player.