JP3081553B2 - Disk recording and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc recording / reproducing apparatus for recording / reproducing information on / from a disc. The present invention relates to a recording and reproducing apparatus having a changer function for recording and reproducing a disk.

[0002]

2. Description of the Related Art The applicant has previously proposed a disk recording / reproducing apparatus shown in FIG. 43 (see Japanese Patent Application Laid-Open No. 8-297904). This is provided with a stocker (7) in which a plurality of trays (4) on which discs are placed are stored in the apparatus main body (100), and a tray (7) from the stocker (7) is provided at the back of the stocker (7). 4)
The holder (700) on which is mounted is provided so as to be able to move up and down. A recording / reproducing unit (2) is provided below the hoistway of the holder (700). After the tray (4) from the stocker (7) is mounted on the holder (700), the tray (4) is lowered and the recording / reproducing unit is moved.
In accordance with (2), recording and reproduction of the disc are performed in this state.

FIG. 44 is a plan view showing a state where the tray (4) is stored in the stocker (7), and FIGS. 45 (a), (b),
(c) is a left side view of the apparatus main body (100). One side of the tray (4) has a stocker in the direction of movement of the tray (4).
A sliding rod (750) that is fitted into and transitions to (7) is softly engaged, and the sliding rod (750) is in a closed position stored in the stocker (7) and outside the stocker (7). Slides with the tray (4) between the open position and the open position. Sliding rod (75
The rack (760) is located inside the side of the tray (4) in which
The rack (760) is provided with a gear mechanism on the holder (700).
The tray (4) is pulled into the holder (700) by engaging with (770). The bracket (78) is located outside the left side of the main unit (100).
The bracket (780) is provided with an elongated hole (790) extending back and forth. The opening and closing slide (30) fits into the elongated hole (790), and the opening and closing slide (30) is
90) and the device body (100), and the sliding rod (75)
0) is detachably fitted. When the bracket (780) moves up and down, the engagement between the opening / closing slide (30) and the sliding rod (750) is released.

When the desired tray (4) is to be discharged, as shown in FIG.
The bracket (780) is raised and lowered to fit the opening / closing slide (30) and the tray (4). Next, as shown in FIG.
Slide the opening / closing slide (30) in the tray discharge direction. The opening / closing slide (30) slides the sliding rod (750), and the tray (4) softly engaged with the sliding rod (750) is discharged.

[0005]

The conventional disk recording / reproducing apparatus has the following problems. 1. When the bracket (780) moves up and down, open and close the slide (30).
Must be fixed in the closed position. Anyway,
In the case of a conventional disk recording / reproducing device,
(30) is not locked in the closed position. Therefore, if an external impact is applied when the bracket (780) is moved up and down, the bracket (780) may not be moved up and down smoothly. 2. The opening and closing slide (30) for opening and closing the tray (4) is provided on the bracket (780).
It is necessary to support the open / close slide (30) in the closed position and the open position of the open / close slide (30). Therefore, there is a problem that the size of the bracket (780) is increased and the manufacturing cost is increased. Also, the load when raising and lowering the bracket (780) is large. In view of such a problem, the applicant prevents rattling in the sliding direction of the opening / closing slide (30) in the closed position, and fits the tray (4) at a desired height position with the opening / closing slide (30). The mechanism to make it simpler and smaller. The present invention aims to solve the above problems.

[0006]

A stocker (7) provided on a chassis (1) and capable of storing a plurality of trays (4) on which disks are mounted, and a tray (4) in the stocker (7) Opening and closing slide that slides the tray (4) in the discharge direction
(30), the stocker (7) has a guide plate (71) for receiving the lower surface of the tray (4), and the opening / closing slide (30) is a stocker (7)
The closed position and the tray (4)
(7) is slidable between the open position and the open / close slide (30).
In the disk recording / reproducing apparatus having a connecting mechanism for engaging with the slide, the connecting mechanism opposes the side surface of the stocker (7) and is attached to the opening / closing slide (30) so as to be vertically movable. And provided on the side of the stocker (7) on the chassis (1), fitted to the slider (37) in the closed position, and
(37) Elevating member (54)
Between the (30) and the device body (100) in the closed position,
A lock mechanism for regulating the sliding of the opening / closing slide (30) is provided, and the slider (37) is in the closed position, and the elevating member (54)
On the opposite side of the fitting part with the side of the tray (4),
The guide plate (71) is provided with a notch (77) that allows the slider (37) fitted to the lifting member (54) to pass up and down in the closed position, and the slider (37) is After passing through the notch (77) and reaching the tray (4) at the desired height position, when shifting from the closed position to the open position, the slider (37) keeps fitting with the tray (4). Slide on the guide plate (71).

[0007]

When the tray (4) at the desired height is to be discharged, the lifting member (54) fitted to the slider (37) is moved to the tray (4) at the closed position. Raise and lower to the corresponding height position. At this time, the opening / closing slide (30) is locked to the apparatus main body (100) by the lock mechanism, and does not shift in the sliding direction. Through the notch (77) of the guide plate (71), the slider (37) moved up and down is moved to the tray (4) at a desired height.
Fits. In this state, when the opening / closing slide (30) slides in the opening direction, the slider (37) is attached to the opening / closing slide (30).
Are connected and slid. In the closed position, the opening / closing slide (30) is locked to the apparatus body (100), so that even if an external impact is applied, the opening / closing slide (30) does not shift, and the slide (37) is The lifting operation can be performed smoothly.

In the conventional construction, the opening and closing slide (30)
Moves up and down and slides between the closed position and the open position, whereas in the present invention, only the slider (37) attached to the opening / closing slide (30) moves up and down, and
This is performed by a lifting member (54) provided separately from (30). The slider (37) can be fitted into the tray (4) and can pass through the notch (77) of the guide plate (71). Is light. Also,
Since it is not necessary to raise and lower the opening and closing slide (30), the lifting load of the opening and closing slide (30) is not applied to the disk recording / reproducing device, and the lifting load can be reduced as compared with the conventional case.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

(Overall Overview) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.
The same components as those of the related art are denoted by the same reference numerals, and detailed description thereof is omitted. 1 (a), 1 (b) and 1 (c) are side views schematically showing the present apparatus. On the front side of the apparatus, there is provided a stocker (7) for storing a plurality of trays (4) and (4) on which discs are to be placed, one above the other, and the tray (4) is the stocker (7). Fits in each of the steps so that they can come and go. A recording / reproducing unit for recording / reproducing a disc is located at the back of the stocker (7).
(2) has three worm shafts (6
1) (61) (61)
The disc conveyed from (4) is received and recording and reproduction are performed. When a new disc is stored in the stocker (7), the tray (4) is moved from the stocker (7) as shown in FIG.
And put the disc on the tray (4). Operation button
(Not shown), press the tray as shown in Fig. 1 (a).
(4) is drawn into the stocker (7). This pull-in operation is performed by a tray sliding mechanism (3) described later.

To record / reproduce a desired disc in the stocker (7), as shown in FIG.
(2) is raised and lowered, and the tray on which the desired disc is placed
Face (4). In this state, the disc is transported from the tray (4) and is placed on the recording / reproducing unit (2). The tray (4) is a combination of the sub-tray (41) and the main tray (40), as will be described later. Only the sub-tray (41) holds a disc and slides toward the recording / reproducing unit (2). Move. When the sub-tray (41) is placed on the recording / reproducing unit (2), recording / reproducing becomes possible. The disc recording / reproducing apparatus includes a recording / reproducing unit (2), a tray sliding mechanism (3), a deck lifting / lowering unit (6) for raising / lowering the recording / reproducing unit (2), and a tray sliding mechanism as described later. Tray (4) to be raised and lowered in cooperation with (3) and to slide
And a connecting unit (5) for fitting the tray sliding mechanism (3).

FIG. 3 is a plan view showing the sliding position of the tray (4). The tray (4) slides between a closed position stored in the stocker (7) and an open position protruding outward from the stocker (7). Tray sliding mechanism (3)
Is driven by a motor (M1) provided on the side of the apparatus, and the deck elevating unit (6) and the connecting unit (5)
Driven by motors (M2) (M3) provided on the chassis (1), respectively. The transport of the disk to the recording / reproducing unit (2) is performed by a motor (M4). The electric wire (850) from the motor (M4) is arranged along the back surface of the recording / reproducing unit (2), so that the electric wire (850) does not hinder when the recording / reproducing unit (2) moves up and down. In the following description, the stocker (7)
The direction of sliding from the recording / reproducing unit (2) toward the recording / reproducing unit (2) is referred to as front, and the direction from the recording / reproducing unit (2) toward the stocker (7) is referred to as rear.

FIG. 2 is a perspective view of the entire apparatus. As is well known, the recording / reproducing unit (2) includes a turntable (250) for rotating the disk, and a pickup (260) for irradiating the back surface of the disk with light to perform recording / reproduction. A clamper (210) for pressing and holding the disc against the turntable (250) is provided on the top surface of the recording / reproducing unit (2), but for convenience of explanation, it is not shown in FIG. Is omitted. The stocker (7) includes a pair of stocker plates (70) (70) in which guide plates (71) for receiving the upper and lower surfaces of the tray (4) are arranged in multiple stages.
Are disposed on the chassis (1) to face left and right. In this example, six trays (4) are stored. Chassis
(1) On the outside of the stocker plates (70) and (70), the device body
The side plates (10) and (10) constituting the (100) are erected, and in the space provided between the right side stocker plate (70) and the side plate (10) in FIG.
The connecting unit (5) is provided slidably forward and backward.

An opening / closing slide (30) constituting a tray sliding mechanism (3) is provided outside the right side plate (10), and the opening / closing slide (30) is a long hole formed in the side plate (10). (14) (14) (14)
Along, slide back and forth. The opening / closing slide (30) is attached to the side plate (1
It is driven by a motor unit (9) attached to (0). Above the recording / reproducing unit (2), both side plates (10) (10)
The top plate (11) covers the top plate (11), and the upper ends of the three worm shafts (61), (61), (61) are fitted to and held by the top plate (11).

FIG. 4 is a perspective view of the recording / reproducing unit (2), and FIG. 5 is a view of a main part thereof as viewed from the front. The recording / reproducing unit (2) is formed by injection-molding a synthetic resin, and has an elevating holder (20) that meshes with the worm shafts (61), (61), (61). The elevating holder (20) is fitted on a guide shaft (63) erected from the chassis (1) to guide elevating and lowering. Each worm shaft (6
A gear (62) fits into the lower end of 1), and the gear (62) is located in the concave portion (13) on the chassis (1) (see FIG. 10). A large opening (27) is opened in the lifting holder (20), and one side of the movable base (21) on which the pickup (260) and the turntable (250) are mounted is pivotally connected to the large opening (27). It is supported (28).

A motor (M4) and a gear train (24) for transmitting power from the motor (M4) are provided on the right side of the large opening (27). Operating gear (25) located at the downstream end of gear train (24)
Consists of an upper gear (25b) and a lower gear (25c), each of which forms a tooth surface only on a part of the outer periphery. Working gear (25)
The upper gear (25b) meshes with the drive gear (26), and the drive gear (26) meshes with the tray (4) as described later. The drive gear (26) includes an upper gear (26b) and a lower gear (26c), and has a recess (26a) in a part of the outer periphery of the upper gear (26b). The lower gear (25c) of the operation gear (25) meshes with the tooth surface (22a) of the operation slide (22) provided on the side of the large opening (27), and slides the operation slide (22) forward and backward. Move. That is, the motor (M4) of the recording / reproducing unit (2) performs both the operation of driving the operation slide (22) and the driving of moving the tray (4) toward and away from the recording / reproducing unit (2). In addition, a sensor for detecting the height position of the recording / reproducing unit (2), which will be described later, is provided near the drive gear (26) on the side of the elevating holder (20).
(SE1) is provided.

The drive gear (26) and the operating gear (25) constitute a Geneva mechanism, and the drive gear (26) and the operating gear (25) are disengaged after meshing for a certain section. 40 and 41
(a) and (b) are plan views showing the meshing state of the driving gear (26), the operating gear (25), and the operating slide (22). Drive gear (2
6) The lower gear (26c) and the upper gear (25b) of the operating gear (25)
As shown in FIGS. 40 (a) and (b), the lower gear (25c) and the operating slide (22) are not initially meshed.
The drive gear (26) receives the rotation of the operating gear (25), rotates clockwise from this state, and pulls in the tray (4) as the upper gear (26b) will be described later. When the tray (4) is completely retracted, as shown in FIGS. 41 (a) and (b), the operating gear (25)
The upper gear (25b) is disengaged from the lower gear (26c) of the drive gear (26), and the tooth surfaces of the lower gear (25c) and the operating slide (22) are disengaged.
(22a) mesh. In this state, the drive gear (26) stops rotating, and the operation slide (22) slides back and forth. This mechanism was previously disclosed by the applicant in Japanese Patent Application Laid-Open No. Hei 8-297904.

FIG. 6 shows the operation slide (22) with a large opening (27).
It is the figure seen from the side. The operating slide (22) has a cam groove (2
3) is opened, and a pin (21a) projecting from the free end of the movable base (21) fits into the cam groove (23). Therefore, the motor (M4)
Is transmitted to the operation slide (22) via the gear train (24), and when the operation slide (22) slides back and forth, the movable base (2)
1) swings about the pivot (28). As shown in FIG.
The upper side of the elevating holder (20) is covered with a clamper plate (200), and the clamper plate (200) has a clamper (210) that presses and clamps a disk between the clamper plate (200) and a turntable (250) as is well known.
Is provided. Disk D is a recording / reproducing unit (2)
In the state where the movable base (21) is rotated upward,
The disc D is held rotatably by the clamper (210) and the turntable (250) being fitted together. In this state, as shown in FIG. 7, the clamper plate (200) does not overlap with the worm shafts (61), (61), (61) and the guide shaft (63), and the clamper plate (200) It does not hinder the lifting of the lifting holder (20).

(Deck Elevating Unit) FIG. 8 is a side view of the left stocker plate (70) viewed from the inside, FIG. 9 is a plan view of the chassis with the stocker (7) removed, and FIG. C
It is the side view seen from the direction. On the chassis (1), a motor (M2) and a gear train (64) associated with the motor (M2) are provided below the left stocker plate (70). The gear (65) at the downstream end of the gear train (64) is provided on a recess (13) that is recessed one step from the chassis (1). At the front end of the chassis (1), an opening (15) is opened at a position corresponding to the recording / reproducing unit (2).

On the rear side of the chassis (1), there is provided a ring gear (60) that meshes with the inside of the gear (62) of each of the worm shafts (61), and the ring gear (60) is on the rear side of the chassis (1). It is placed on the bracket (66) attached to the. The gear (6) of the gear train (64)
5) meshes with the ring gear (60) and transmits the rotational power of the motor (M2) to the ring gear (60). When the motor (M2) rotates, the ring gear (60) rotates via the gear train (64), and the three worm shafts (61), (61), (61) rotate. Since the elevating holder (20) of the recording / reproducing unit (2) is fitted on the guide shaft (63) and is prevented from rotating, the rotation of the worm shafts (61), (61), (61) causes the recording / reproducing unit (2) to rotate. ) Goes up and down. Thus, the recording / reproducing unit (2) faces the tray (4) on which the disk to be recorded / reproduced is placed (see FIG. 1 (c)). The pickup (260) and the turntable (25) of the recording / reproducing unit (2)
0) is located in the hollow circle of the ring gear (60) as shown in FIG. Thus, even when the recording / reproducing unit (2) is at the lowest position, the pickup (260) and the turntable (25)
Circuit components (not shown) attached to the ring gear (0) and exposed from the opening (15) below do not come into contact with the ring gear (60), and the ring gear (60) can rotate smoothly.

(Details of Tray) FIG. 11 is a plan view of the tray (4), and FIG. 13 is an exploded perspective view of the tray (4). The tray (4) has a sub-tray (41) slidably mounted on a main tray (40). The concave streak (44) provided on one side of the sub-tray (41) fits into the protrusion (45) projecting inward from the side surface of the main tray (40), and is guided to slide. The leaf spring (46) projecting inward from the rear end of the main tray (40) fits into the hole (47) of the sub-tray (41).
(41) and the main tray (40) are softly locked. Sub tray (41)
Forms a rack (42) that meshes with the drive gear (26) of the recording / reproducing unit (2), and fits into the recess (26a) of the drive gear (26) in the middle of the rack (42). Large teeth (43) (FIG. 11)
Reference) is provided. During the rotation of the drive gear (26), the large teeth (43) and the recess (26a) of the drive gear (26) are fitted, so that a large sliding load is applied to the tray (4) at the fitted position. However, the rack (42) does not break even if it is added. As shown in FIG. 13, a concave groove (48) is formed in the right side of the lower surface of the main tray (40) so as to extend back and forth, and the concave groove (48) projects from the upper surface of a guide plate (71) described later. The slide in the stocker (7) is guided by the fitted ridge (72).

As shown in FIG. 13, the sub-tray (41) has a large recess (400) in which a disc having a diameter of 12 cm fits, and a large recess (40).
A small recess that fits an 8cm diameter disc one step down from 0)
(410), straddling the large recess (400) and the small recess (410),
Transparent window (420) through which the beam from the pickup (260) can pass
Has been established. The main tray (40) has a transparent window (420)
A window (430) is set up so that the ribs (49) and (49) facing the disk having a diameter of 8 cm in the tray (4) arranged at the lower stage face down on both sides of the window (430). It is protruding. As shown in FIG. 21, the ribs (49) and (49) are provided when the tray (4) is stored in the stocker (7).
9) (49) 8cm disc D stored in lower tray (4)
In order to prevent the disk D from falling off. That is, even if an impact is applied to the apparatus, the ribs (49) and (49) prevent the 8 cm disk D from dropping from the tray (4). Note that a cabinet (not shown) covers the upper surface of the stocker (7), and the tray (4)
The disc inside is prevented from falling off by the cabinet.

FIG. 12 is a plan view of the main tray (40). A locking claw (440) and a locking protrusion (450) project outward from the right end of the main tray (40). As described later, the locking claw (440) is in the closed position and the tray (4)
The tray sliding mechanism (3) is engaged between the locking projection (450) and the locking claw (440). On the main tray (40), a hook piece (460) is provided inside the locking projection (450), and on the sub-tray (41), at a location corresponding to the hook piece (460), As shown in FIG. 11, one end of a locking lever (470) is pivotally supported. Lock lever (47
15), the rotor (480) in contact with the lower surface of the sub-tray (41) and the opening (53) of the sub-tray (41) as shown in FIGS.
(0) through the operator (49) in contact with the upper surface of the sub tray (41).
0) are integrally connected, and the free end of the rotor (480) is lowered by one step to form a projection (480a) that is engaged with the hooking piece (460).

(Locking of Main Tray and Sub Tray) FIG.
As shown in FIG. 6 (a), the locking lever (470) is
It is biased counterclockwise by 5). The inner end face of the guide plate (71) of the stocker (7) has a first linear portion (73a) extending in the direction in which the tray (4) extends and retracts, and is inclined inward from the rear end of the first linear portion (73a). A cam portion (73) integrally formed with the inclined portion (73b) and a second linear portion (73c) extending in parallel from the rear end of the inclined portion (73b) to the first linear portion (73a). I have. When the tray (4) is in the closed position, the operator (490) of the locking lever (470)
Is separated from the first straight portion (73a). At this time, FIG.
As shown in the figure, the projection (480a) of the locking lever (470) does not engage with the hook (460), and the sub-tray (41) is
Can slide away from (40).

When the main tray (40) moves from the closed position to the open position, the sub-tray (41) is softly locked to the main tray (40) by the spring (46).
The sub tray (41) also moves together with the main tray (40). As shown in FIG. 17A, the tip of the operating element (490) is
And the locking lever (470) rotates clockwise against the torsion spring (495). As shown in FIG. 17 (b), the projection (480a) of the locking lever (470) is
When the main tray (40) slides rearward, the hook (460) pushes the main tray (40) and the sub-tray (41) also slides rearward. The main tray (40) and the sub tray (41) are retracted integrally. That is, in the open position of the tray (4),
(41) and the main tray (40) cannot be separated, and in the closed position, the sub-tray (41) can move away from the main tray (40) toward the recording / reproducing unit (2).

The sub tray (41) and the main tray (40)
Both are formed by injection molding of a synthetic resin. Here, both the sub-tray (41) and the main tray (40) tend to bend so that the central portion is downwardly convex, and particularly when the amount of bending of the sub-tray (41) is large, the main tray (40)
And the sub-tray (41) may not slide smoothly on the main tray (40). FIG. 14 shows the sub-tray of FIG.
(41) is cut away along the line AA.In order to avoid such a possibility, a tapered surface (520) inclined upward and inward is formed at the center of the sub-tray (41). tray
The contact with the upper surface of (40) is prevented.

FIG. 19 shows the sub-tray (41) of FIG.
It is sectional drawing cut | disconnected by the B line. At the front end of the transparent window (420), a captive piece (50) formed integrally with the sub-tray (41) is provided.
0) is provided so as to cover the tip of the large concave portion (400). A contact wall (510) protrudes downward in front of the fall prevention piece (500). In the state where the 8 cm disk is placed in the small concave portion (410) of the tray (4), as described above, the ribs (49) (49) provided on the back side of the upper main tray (40)
The disc is prevented from falling off (see FIG. 21).
There is a possibility that the recording / reproducing unit (2) may fall off the gap between the rib (49) and the upper surface of the tray (4). However, by providing the drop-off preventing piece (500) and the contact wall (510), even if the 8 cm disk D falls to the recording / reproducing unit (2) side, as shown in FIG. It slips under the fall prevention piece (500) and is prevented from moving forward by the contact wall (510). This prevents the 8 cm disk D from dropping to the recording / reproducing unit (2).

The falling-off prevention piece (500) and the contact wall (510) are 12
Although the cm disk has an effect on dropping to the recording / reproducing unit (2) side, its effect is thinner than that of the 8 cm disk because the diameter is larger than that of the 8 cm disk. 12cm disk recording / reproducing unit (2)
As shown in FIG. 3, the guide plate (71) is formed widely on the inside to cover the end of the large concave portion (400) of the tray (4). This is performed by lowering the height of the recording / reproducing unit (2) when the disc is ejected by one step from the tray (4) in which the disc is stored.

(Locking of tray and stocker) FIGS. 20 (a) and 20 (b)
Is a plan view of the front end of the tray (4). When the tray (4) is in the closed position, the recess (26a) of the drive gear (26) of the recording / reproducing unit (2) and the tip of the rack (42) of the sub-tray (41) are fitted, and the tray (4) is closed. When the drive gear (26) rotates clockwise from the position, the sub-tray (41) slides toward the recording / reproducing unit (2). If the tray (4) is not locked to the stocker (7) in this closed position, when the front end of the apparatus body is lifted and tilted,
There is a possibility that the tray (4) slips outward and falls off. Therefore, the following mechanism is provided to prevent the tray (4) from dropping to the open position at the closed position.

FIG. 23 is a perspective view of the right side stocker plate (70) viewed from the front side, and FIG. 26 is a side view of the right side stocker plate (70) viewed from the inside. The stocker plate (70) is, as described above,
The guide plates (71) are arranged in a plurality of stages, and each guide plate (71) has an upright ridge (72) in which the concave groove (48) of the main tray (40) fits. FIG. 23 shows only the first-stage ridge (72) for convenience of explanation. In front of the guide plate (71), a vertical plate (74) has a stocker plate (7
It is erected integrally with 0). The vertical plate (74) has a guide plate (7
In response to (1), the same number of slits (75) as the number of trays (4) are opened, and a sensor (SE1) provided in the recording / reproducing unit (2) is installed facing the slit row of the vertical plate (74). You. As the recording / reproducing unit (2) moves up and down, the sensor (SE1) slits
By detecting (75), the height position of the recording / reproducing unit (2) can be determined. Thereby, the recording / reproducing unit (2) can be stopped at an accurate height position.

When the recording / reproducing unit (2) is at the lowest position, the recording / reproducing unit (2) pushes down a lowering completion detection switch (SW3) provided inwardly from the side plate (10). The switch (SW3) is connected to the motor unit
(9) (see FIG. 2). As shown in FIG. 23, the dent (7) opened between the vertical plate (74) and the guide plate (71)
8), a long axis (79) is erected, and the long axis (79) has a claw piece (8).
Are fitted as many as the number of trays (4). An elongated opening (76) extending in the tray sliding direction is opened between the vertically adjacent guide plates (71), and as shown in FIG.
Has a free end projecting inward from the elongated opening (76).

As shown in FIG. 20 (a), one end of the claw piece (8) is urged clockwise by a torsion spring (80) hooked on the stocker plate (70), and its free end is a locking claw (80). 440). In FIG. 20A, the guide plate (71) is indicated by a dashed line. In this state, the front and rear sliding of the main tray (40) is regulated. As described above, in the closed position, the sub-tray (41) and the main tray (40) are separable, so when the drive gear (26) rotates, only the sub-tray (41) faces the recording / reproducing unit (2). Slide. As shown in FIG. 20 (b), when the claw piece (8) rotates counterclockwise and the free end of the claw piece (8) disengages from the locking claw (440), the tray (4) Is
As described above, the main tray (40) and the sub-tray (41) can be slid toward the open position integrally. Nail clip
The release of the lock between (8) and the main tray (40) is performed by a connecting unit (5) for connecting the tray sliding mechanism (3) and the tray (4), as described later.

(Tray Sliding Mechanism and Connecting Unit) The tray sliding mechanism (3) is connected to the tray (4) by the connecting unit (5). First, the tray sliding mechanism (3) will be described. FIG.
Is a view of the right side plate (10) viewed from the open position,
FIG. 25 is a perspective view of the side plate (10) as viewed from the inside. The tray sliding mechanism (3) has the opening and closing slide (30), and a sliding bracket (35) is attached to one end of the opening and closing slide (30) through the side plate (10). . The sliding bracket (35) is formed by bending a sheet metal, and has a vertical hole (36) in a surface facing the side wall of the stocker (7). A slider (37) is fitted in the vertical hole (36) so as to be able to move up and down. Slider (37) is a vertical hole
Tray connecting piece located on the side of the stocker (7) across (36)
(38) and the fitting piece (39) located on the side plate (10) side are integrally connected, and if the opening / closing slide (30) slides back and forth, the slider (37) also Slide back and forth.

As described above, the opening / closing slide (30) is slid back and forth by the motor unit (9). 29 (a) and 29 (b) are side views of the right side plate (10) as viewed from the outside, where (a) shows a closed position and (b) shows an open position. Motor unit
(9) The motor (M1) and the motor (M1) are mounted on the mounting plate (90).
And a gear train (92) linked via a belt (91). The mounting plate (90) is provided with a close detection switch (SW2) and an open detection switch (SW1) corresponding to the transition end of the opening / closing slide (30).
The switch (SW) for detecting the completion of the descent
3) is also provided. The opening / closing slide (30) has a rack (32) formed at a lower end edge thereof, and a lock gear (31) having a tooth surface connected to the rack (32) formed at a rear end thereof. The lock gear (31) is urged clockwise by a torsion spring (not shown), and abuts a stopper (33) projecting from the opening / closing slide (30) at the open position.

In the open position shown in FIG. 29 (b), the open / close slide (30) is set to the open detection switch (SW1).
To see that it has reached the open position. When the motor (M1) is energized from this state, the opening / closing slide (30) slides forward via the gear train (92). FIG.
As shown in (a), a gear (93) at the downstream end of the gear train (92),
When the lock gear (31) meshes, the lock gear (31) separates from the stopper (33) and rotates counterclockwise. FIG.
(a), (b) is an enlarged view of the periphery of the lock gear (31). FIG.
As shown by dotted lines in FIGS.
(12) protrudes outward, and from the lock gear (31) a protrusion (34)
Project inward. With the rotation of the lock gear (31), the projection (34) comes into contact with the engaging piece (12), and the opening / closing slide (30)
To prevent backlash. The open / close slide (30) pushes the close detection switch (SW2) and the open / close slide (30)
Stops sliding. In this state, the opening / closing slide (30) reaches the closed position.

FIG. 27 shows the stocker in the closed position.
FIG. 20A is a plan view showing the positional relationship between the guide plate (71) and the slider (37), and FIG. 20A shows the positional relationship between the slider (37) and the locking projection (450). Also shown. The guide plate (71) is provided with a notch (77) that allows the slider (37) to move up and down, and the slider (37) moves up and down along the vertical hole (36) in the closed position ( See FIG. 26).
The slider (37) fits between the locking projection (450) and the locking claw (440), and when the sliding bracket (35) slides toward the open position together with the opening and closing slide (30), the tray ( 4) also slides toward the open position (see FIG. 31 (b)).

The connecting unit (5) raises and lowers the slider (37), keeps the slider up and down, and engages the slider (37) with the tray (4). The specific configuration is shown below. FIG. 22 is a plan view showing the positional relationship between the chassis (1) and the connection unit (5). The motor (M3) provided on the chassis (1) is connected to the connecting unit (5) via a gear train (85).
Connect with The gear (86) located at the downstream end of the gear train (85) is located below the stocker (7) (see FIG. 26).
A hole (87) is opened in the vicinity of the outer periphery of the. Chassis
(1) A sensor (SE2) is provided on the hole (87) to cover the hole (87). After the sensor (SE2) detects the hole (87),
When (87) is detected, it is detected that the gear (86) has made one rotation. One rotation of the gear (86) is performed by the elevating member (54) and the slider (3).
7) corresponds to the distance to move up and down by one step of the guide plate (71).

As shown in FIG. 25, the connecting unit (5)
Has a holding bracket (50) fitted inside the sliding bracket (35), and the holding bracket (50) is fixed to the chassis (1) as shown in FIG. Have been. The retaining bracket (50) has a worm shaft (51)
However, a guide shaft (52) is provided upright on the lateral side. A gear (53) made of synthetic resin is fitted to the lower end of the worm shaft (51), and the gear (53) meshes with a gear (86) fitted with the sensor (SE2). An elevating member (54) formed of a synthetic resin fits on the worm shaft (51) and the guide shaft (52). Motor (M3)
Is transmitted to the worm shaft (51) via the gear train (85), and when the worm shaft (51) rotates, the elevating member (54) is fitted on the guide shaft (52) and the rotation is restricted. From above, it goes up and down along the guide shaft (52).

The lifting member (54) has a lock releasing piece (5
5), and a guide groove (56) in which the fitting piece (39) of the slider (37) fits is opened in the unlocking piece (55). FIG.
FIG. 4 is a front view of a holding bracket (50). The front surface of the unlocking piece (55) has a vertical surface (57a) in contact with the claw piece (8), and a tapered surface (57) extending from the upper and lower ends of the vertical surface (57a).
b) (57b) are integrally provided, and the center in the height direction of the vertical plane (57a) and the center in the height direction of the guide groove (56) are at the same height. With the opening / closing slide (30) and the sliding bracket (35) reaching the closed position, that is, in the state of being closest to the front, FIG.
As shown in FIG. 8, the fitting piece (39) of the slider (37) is
Fit in. In the closed position, the slider (37) moves the guide plate (7
Since the worm shaft (51) can rotate up and down without being disturbed by 1) (see FIG. 27), the slider (37) fitted to the lifting member (54) moves up and down.

The tapered surface (57b) and the vertical surface of the lifting member (54)
(57a) comes into contact with the claw piece (8) and releases the locking of the claw piece (8) and the main tray (40). That is, when the tapered surface (57b) of the elevating member (54) comes into contact with the claw piece (8), the claw piece (8) is restricted from sliding up and down, as shown in FIG. , The claw piece (8) rotates against the urging force of the torsion spring (80), and the claw piece (8) rotates.
The lock between (8) and the locking claw (440) is released. Lifting member (54)
When the vertical surface (57a) contacts the free end of the claw (8), the claw
(8) is in the release completed state, and the tray (4) can slide toward the open position. As described above, the center of the vertical surface (57a) of the elevating member (54) and the center of the guide groove (56) coincide with each other, and as shown in FIG.
Since it is at the same height as the elongated opening (76) in (70),
When the opening of (8) is completed, the tray connecting piece (3
8) protrudes into the elongated opening (76). FIG. 31 (a) is the closed position, FIG. 31 (b) is the open position, the elevating member (54),
The positional relationship between the tray (4) and the slider (37) is shown. FIG. 31 (a)
As shown in the figure, the tray connecting piece (38) is
Fit into (4). The slider (37) has the fitting piece (39)
Since the slider (37) is fitted in the guide groove (56) of the (54), the slider (37) does not fall.

When the opening / closing slide (30) moves in the open direction from the closed position, the sliding bracket (35) also slides in conjunction therewith, and as shown in FIG. The tray slides rearward from the position corresponding to the notch (77) of (71), and the tray connecting piece (38) of the slider (37) slides on the guide plate (71). As shown in FIG. 31 (b), the slider (37) has the fitting piece (39) separated from the guide groove (56) of the elevating member (54) and the tray (37).
Slide (4) in the open direction.

FIG. 36 is an overall perspective view of the apparatus main body (100). A processor (800) containing a predetermined operation program is connected to the device body (100), and the motor (M1) to
(M4), sensor (SE1) (SE2) and switch (SW1) (S
W2) (SW3) are connected to the processor (800),
(800) controls each operation of the apparatus.

(Disk loading operation) The disk is loaded into the tray (4).
To be placed in the stocker (7), the operation button (not shown) of the apparatus main body is first operated to change the motor (M1) of the motor unit (9) from the state shown in FIG. ) To slide the opening / closing slide (30) forward (see FIG. 29 (a)).
The tray (4) fitted to the slider (37) is retracted, and FIG.
As shown in (a), the slider (37) is guided by the guide groove of the lifting member (54).
Fits (56). At this time, as shown in FIG. 29A, the opening / closing slide (30) pushes the close detection switch (SW2), and the rotation of the motor (M1) stops. As shown in FIG. 20 (a), the claw piece (8) is fitted into the tray (4), and the tray (4) reaches the closed position stored in the stocker (7).

(Recording / reproducing operation) The recording / reproducing unit (2)
As shown by the one-dot chain line in FIG. 35, it is initially located at the lowermost position and is on standby, and the lowering completion detection switch (SW3) is depressed. When the number of the tray (4) to be recorded / reproduced is input from the apparatus main body, the processor (800) energizes the motor (M2) shown in FIG. 9 to rotate the ring gear (60). The ring gear (60) rotates three worm shafts (61), (61) and (61),
Raise the recording / reproducing unit (2). As shown in FIG. 23, the sensor (SE1) of the recording / reproducing unit (2) counts the number of slits (75) passing therethrough, and the recording / reproducing unit (2) faces the tray (4) to be recorded / reproduced. If detected,
The processor (800) stops the rotation of the motor (M2). In this state, as shown in FIG. 32, the drive gear (26) and the tip of the sub-tray (41) are fitted. Processor (800)
Turns on the motor (M4) to rotate the drive gear (26) clockwise through the gear train (24) as shown in FIG. As described above, in the closed position, the sub-tray (41)
And the main tray (40) are unlocked, and the main tray (40) is locked by the claw (8).
Only (41) slides toward the recording / reproducing unit (2).

Following the sliding of the sub-tray (41), FIG.
As shown in the figure, the large teeth (43) of the rack (42) and the drive gear (26)
The recess (26a) fits. At the fitting position, the rack (42) does not break even if the sliding load of the sub-tray (41) is large. FIG. 34 is a plan view of the sub tray (41) when the forward movement is completed. The sub-tray (41) covers the elevating holder (20), and the turntable (250) is exposed from the transparent window (420) of the sub-tray (41). Drive gears that make up the Geneva mechanism
(26) is disengaged from the operating gear (25) (see FIGS. 41 (a) and (b)), and when the motor (M4) further rotates, the operating gear (25) and the operating slide (22) mesh with each other, The working slide (22) slides. The movable base (21) is raised, and as shown in FIG. 5, the movable base (21) and the clamper (210) are combined, and the disk can be recorded and reproduced. When the turntable (250) rotates and a beam is emitted from the pickup (260) to the back surface of the disk, recording and reproduction can be performed.

(Tray Ejection Operation) In the closed position, as shown in FIG. 28, the slider (37) fits into the guide groove (56) of the elevating member (54), and the elevating member (54) It is provided so as to be able to move up and down. When the tray (4) in the stocker (7) is to be ejected, the processor (800) energizes the motor (M3) (see FIG. 22) to move the worm shaft (51) in the holding bracket (50). Rotate to raise and lower the elevating member (54). FIG.
When the sensor (SE2) shown in FIG. 2 counts the holes (87) of the gear (86) passing therethrough and detects that the elevating member (54) and the slider (37) face the tray (4) to be discharged. , Motor (M3)
Stop the energization.

As described above, at this position, as shown in FIG. 20 (b), the locking piece (55) releases the locking of the claw piece (8) and the main tray (40), and the main tray (40) And the sub-tray (41) are slidable integrally toward the open position. In this state, the processor (800) energizes the motor (M1). The slider (37) fits into the main tray (40) and slides toward the open position, and the main tray (40) and the sub-tray (41) are locked by a locking lever (470) and a hook. (460) is locked (see FIGS. 17 (a) and 17 (b)) and slides together. When the open / close slide (30) pushes the open detection switch (SW1), the processor (800) stops energizing the motor (M1).
When the motor (M1) is energized, the main tray (40) and the sub-tray (41) move toward the open position.

In this apparatus, when the tray (4) is discharged,
When the motor (M2) is energized, the recording / reproducing unit (2) is lowered, and as shown in FIG. 35, the recording / reproducing unit (2) is moved to one step below the tray (4) to be ejected, and the recording / reproducing is performed. Tray to discharge the clamper plate (200) on the unit (2)
Face the front of (4). Stocker (7) and chassis (1)
There is room in the height direction between
When discharging (4), place the recording / reproducing unit in the extra position.
(2) is moved, and in this state, the recording / reproducing unit (2) pushes down the lowering completion detection switch (SW3). FIG. 35 shows a state in which the second tray (4) from the top is discharged. The reason is as follows. When the tray (4) is ejected, the main tray (40) and the claw (8) are unlocked.
It becomes movable toward (2). The main tray (40) is restricted from moving forward when the locking claws (440) are in contact with the edge of the elongated opening (76) of the stocker plate (70), but the sub-tray (41) can move forward as it is. Accordingly, if the rear end of the apparatus main body is lifted up and installed in an inclined state, the soft engagement between the sub-tray (41) and the main tray (40) is released, and the sub-tray (41) to be ejected from the closed position is removed. There is a possibility that the recording / reproducing unit (2) may fall off. Therefore, in this device, the clamper plate (200) is opposed to the tray (4) to be discharged,
This prevents the sub-tray (41) from dropping toward the recording / reproducing unit (2). A series of operations at the time of discharging the tray (4) is shown in the flowchart of FIG.

As a method of closing the transition path of the tray (4) toward the recording / reproducing unit (2) when the tray is discharged, the lifting holder (20) of the recording / reproducing unit (2) is made thicker and the tray to be discharged is discharged. (4) Recording / reproducing unit one step higher
Move (2) and use tray (4) with recording / reproducing unit (2).
It is also conceivable to prevent the recording / reproducing unit (2) from falling off. However, in this case, the height of the apparatus main body is increased, so that the recording / reproducing unit (2) is moved down by one step when the tray is ejected.

In the above example, as shown in FIG. 37, the lower end surface of the elevating member (54) comes into contact with the upper surface of the gear (53) when the elevating member (54) is completely lowered. In such a contact state, the worm shaft (51) continues to rotate, and the elevating member (5
If 4) is continuously pressed against the gear (53), since both the elevating member (54) and the gear (53) are formed of synthetic resin,
There is a risk that the lifting member (54) and the gear (53) may bite. In this biting state, when the lifting member (54) is raised next time, the lifting member (54) becomes difficult to lift due to biting resistance. Therefore, as shown in FIG.
The contact piece (60) that fits into the valley of the worm shaft (51) from the upper surface of (3)
0) and a contact (610) that fits into the valley of the worm shaft (51) from the lower surface of the elevating member (54) and contacts the side surface of the contact piece (600). Inspired. Lifting member (5
In the state of completion of the lowering of 4), as shown in FIG. 38 (b), the abutment (610) of the elevating member (54) and the abutment piece (600) of the gear (53) are in contact with the side surface. Since the contact area between the contact element (610) and the contact piece (600) can be set smaller than the contact between the lower surface of the lifting member (54) and the upper surface of the gear (53), there is no fear of the bite, The elevating member (54) can smoothly ascend from the state where the descent is completed. A similar mechanism may be provided at the upper end of the worm shaft (61). Further, a similar mechanism may be provided to the worm shaft (51) for raising and lowering the recording / reproducing unit (2) and the recording / reproducing unit (2).

As shown in FIG. 39, when the tray (4) in the open position is manually pushed in, the open / close slide (3) is opened.
0) and the contact of the open detection switch (SW1) are separated.
That is, the open detection switch (SW1) may be turned off even though a signal indicating that the motor (M1) should be energized is not received from the processor (800). At this time, the motor (M1) may be automatically energized and the tray (4) may be pulled in. In this case, as shown by the dashed line in FIG. 13 with the letters PUSH, a push operation display (530) is provided on the end face where the tray (4) is pushed, and it is confirmed that the tray (4) can be pushed. May be shown.

The description of the above embodiments is for the purpose of illustrating the present invention and should not be construed as limiting the invention described in the claims or reducing the scope thereof. Further, the configuration of each part of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made within the technical scope described in the claims.

[Brief description of the drawings]

FIG. 1 is a side view showing an outline of the operation of a disk recording / reproducing apparatus, where (a) is a closed position, (b) is an open position,
(c) is a diagram showing a vertically moving state of the recording / reproducing unit.

FIG. 2 is a perspective view of a disk recording / reproducing apparatus.

FIG. 3 is a plan view showing a closed position and an open position.

FIG. 4 is a perspective view of a recording / reproducing unit.

FIG. 5 is a front view showing a positional relationship between a recording / reproducing unit and a clamper plate.

FIG. 6 is a front view of the operation slide.

FIG. 7 is a plan view showing a state where the recording / reproducing unit and the clamper plate are fitted together.

FIG. 8 is a side view of the left stocker plate as viewed from the inside.

FIG. 9 is a plan view of the chassis to which the ring gear is attached.

FIG. 10 is a side view of FIG. 9 viewed from a direction C.

FIG. 11 is a plan view showing a state where a sub tray and a main tray are combined.

FIG. 12 is a plan view of a main tray.

FIG. 13 is an exploded perspective view of a main tray and a sub tray.

14 is a cross-sectional view of the sub-tray of FIG. 13 taken along line AA.

FIG. 15 is a perspective view of a locking lever.

16A is a plan view showing a locked state of a sub-tray and a main tray at a closed position, and FIG. 16B is a plan view showing a positional relationship between a locking lever and a hook at a closed position.

FIG. 17A is a plan view showing the locked state of the sub-tray and the main tray during the transition from the closed position to the open position, and FIG. 17B is an engagement diagram during the transition from the closed position to the open position. It is a top view which shows the positional relationship of a stop lever and a hook.

FIG. 18 is a side view in which a main tray and a sub tray are partially broken.

19 is a cross-sectional view of the sub-tray of FIG. 13 taken along line BB.

20 (a) is a plan view showing a locked state of a claw piece and a locking claw, and FIG. 20 (b) is a plan view showing a unlocked state of a claw piece and a locking claw.

FIG. 21 is a rear view of the stocker.

FIG. 22 is a plan view showing an arrangement relationship between a motor for operating the connection unit and a gear train.

FIG. 23 is a perspective view of the right stocker plate.

FIG. 24 is a side view of the connection unit in which a stocker plate is partially broken.

FIG. 25 is a perspective view of a connection unit.

26 is a side view of the stocker plate of FIG. 23.

FIG. 27 is a plan view showing a state where the slider is fitted to the notch.

FIG. 28 is a front view of a state in which the slider is fitted to the elevating member.

FIG. 29 (a) is a side view showing a position of an opening / closing slide in a closed position, and FIG. 29 (b) is a side view of the same open position.

30 is an enlarged view of a main part of FIG. 29, (a) is a view immediately before locking by a lock gear, and (b) is a view of a locked state by a lock gear.

FIG. 31 (a) is a side view showing an opening / closing slide and a tray at a closed position, and FIG. 31 (b) is a side view at an open position of the same.

FIG. 32 is a plan view showing a positional relationship between a sub-tray and a recording / reproducing unit at a closed position.

FIG. 33 (a) is a plan view of a drive gear and a sub-tray in a closed position, and FIG. 33 (b) is a plan view of the rack when large teeth and notches are fitted.

FIG. 34 is a plan view when the sub-tray reaches above the recording / reproducing unit.

FIG. 35 is a side view showing the arrangement of the tray and the recording / reproducing unit when the tray is discharged.

FIG. 36 is a perspective view of an apparatus main body.

FIG. 37 is a front view showing a state where the upper and lower members and the upper surfaces of the gears are fitted together.

FIG. 38 (a) is a front view when the elevating member descends, and (b)
FIG. 4 is a front view when the contact piece comes into contact with the contact piece.

FIG. 39 is a side view when the tray is manually pushed in at the open position.

FIG. 40 (a) is a diagram showing meshing between a driving gear and an operating gear;
(b) is a diagram showing the engagement between the operation gear and the operation slide.

FIG. 41 (a) is a diagram showing meshing between a driving gear and an operating gear;
(b) is a diagram showing the engagement between the operation gear and the operation slide.

FIG. 42 is a flowchart showing an operation at the time of tray ejection.

FIG. 43 is a side view of a conventional disk recording / reproducing apparatus.

FIG. 44 is a plan view showing a closed position and an open position of the tray.

FIGS. 45 (a) and 45 (b) are side views showing the elevating state of the tray and the sliding bracket, and FIG. 45 (c) is a side view showing the discharging state of the tray.

[Explanation of symbols]

 (1) Chassis (4) Tray (7) Stocker (12) Engagement piece (30) Opening / closing slide (31) Lock gear (34) Projection (54) Lifting member (71) Guide plate

Claims (2)

(57) [Claims] 1. A stocker (7) provided on a chassis (1) in an apparatus main body (100) and capable of storing a plurality of trays (4) on which disks are mounted, and a tray in the stocker (7) (4)
The tray (4) is provided with an opening / closing slide (30) for sliding the tray (4) in the discharge direction, and the stocker (7) receives the lower surface of the tray (4).
The opening / closing slide (30) is slidable between a closed position stored in the stocker (7) and an open position where the tray (4) is discharged from the stocker (7). In a disc recording / reproducing apparatus having a coupling mechanism for engaging the tray (30) with the tray (4) at a desired height, the coupling mechanism is opposed to the side surface of the stocker (7) and is attached to the opening / closing slide (30). Slider (37) mounted to move up and down freely
Provided on the side of the stocker (7) on the chassis (1),
A lifting member (54) that is fitted to the slider (37) in the closed position and raises and lowers the slider (37), and the opening / closing slide (30) and the device body (100) In the closed position, a lock mechanism for restricting the sliding of the opening / closing slide (30) is provided, and the slider (37) is located on the opposite side of the fitting portion with the elevating member (54) in the closed position. The guide plate (71) fits on the side of the tray (4), and the guide plate (71) has a notch (77) that allows the slider (37) fitted to the lifting member (54) to pass up and down in the closed position. The slider (37) passes through the notch (77), reaches the tray (4) at a desired height position, and when shifting from the closed position to the open position, the slider (37) is provided. 37) A disc recording / reproducing apparatus characterized in that the disc recording / reproducing apparatus slides on the guide plate (71) while keeping the fitting with the tray (4). 2. A locking mechanism of the opening / closing slide (30) includes a projection (34) projecting inward from a lock gear (31) on the opening / closing slide (30), and a projection projecting outward from the apparatus body (100). When the lock gear (31) rotates in the closed position, the protrusion (3
2. The disk recording / reproducing apparatus according to claim 1, further comprising: an engaging piece engaged with said 4).