JP3384729B2 - Disk recording / reproducing device with detachable magazine - 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 having a magazine rotatably mounted on a chassis for accommodating a plurality of discs.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a disk recording / reproducing apparatus in which a magazine for vertically storing a plurality of disks as recording media is rotatably provided on a chassis. The applicant has also proposed the device shown in FIGS. 11 and 12 (see Japanese Patent Laid-Open No. 6-195842). This is such that a magazine (3) having a plurality of disc holding grooves (31) for standing and storing discs radially is provided rotatably on a chassis (2). A disc loading / unloading unit (4) and a recording / reproducing unit (7) are provided separately from each other on the outer side of the rotation transfer path of the magazine (3), and inside of the loading / unloading unit (4) and the recording / reproducing unit (7).
Roller units (6) and (60) are provided between the magazine and the magazine (3) to convey and sandwich the discs.

A front panel (2
0) is provided and the chassis (2) is a box (22) with an open top.
Is provided on the bottom of the. The box (22) is covered with a cabinet (21) that covers the magazine (3), and the front panel (20) is provided with a rotary shutter (40) having a vertically long opening (41). When the opening (41) of the rotary shutter (40) faces the front,
The disc is loaded into the loading / unloading section (4). The disk D
As shown in FIG. 12, the paper is nipped and conveyed by the roller unit (6) and falls into the long hole (39) formed in the bottom surface of the magazine (3). On the chassis (2), a kicking member (400) for kicking the disk in the magazine (3) toward the loading / unloading section (4) is provided slidably in the radial direction of the magazine (3).
When ejecting the disc from the magazine (3), the kicking member (400) slides toward the loading / unloading part (4) to kick out the disc. In order to record / reproduce the disc stored in the magazine (3), the magazine (3) is rotated so that the disc holding groove (31) in which the disc is stored faces the recording / reproducing unit (7). The disc in the disc holding groove (31) is a recording / reproducing section.
Although it is carried to (7), details of the carrying mechanism are omitted.

[0004]

Although the disk recording / reproducing apparatus has been widely used, in recent years, in karaoke or the like, an apparatus for continuously reproducing a plurality of disks previously stored in the magazine (3). Is proposed. The apparatus does not require the loading / unloading section (4) shown in FIG. 11, and the magazine (3) containing a plurality of disks in advance is mounted on or removed from the chassis (2). In such a device, since the magazine (3) is frequently removed, the cabinet (22) is placed in the cabinet as in the conventional case.
If it is covered with (21), the workability of attaching and detaching the magazine (3) is poor. Also, if the magazine (3) and the recording / playback unit (7) are repaired with the cabinet (21) removed, the box body
Since it is necessary to put a hand in (22), there is also a problem that the working posture becomes bad. An object of the present invention is to improve the workability of exchanging magazines and other parts.

[0005]

DISCLOSURE OF THE INVENTION A disk recording / reproducing apparatus is
A magazine (3), which is rotatably provided on the chassis (2) and has a plurality of disc holding grooves (31) for accommodating the discs in an upright position, and a rotation transition path of the magazine (3). A recording / reproducing unit (7) provided for recording / reproducing a disc
And a cabinet (21) which covers the magazine (3) and covers the chassis (2). The cabinet (21) has an opening (23) on the front surface, and the chassis (2) is slidable with respect to the support base (1) located on the bottom surface of the cabinet (21) and is retractable from the opening (23). The recording / reproducing unit (7) is arranged closer to the opening (23) than the magazine (3), and the chassis (2) is located at the first position where the recording / reproducing unit (7) is exposed from the cabinet (21). The reproduction unit (7) and the magazine (3) are gradually pulled out to a second position where the magazine (3) is exposed, and the support base (1) or chassis (2) is pulled out.
The support base (1) in at least one of the first position and the position where the chassis (2) is housed in the cabinet (21).
And an engagement mechanism for hooking the chassis (2).

[0006]

FUNCTION AND EFFECT The present invention has the following effects. The chassis (2) slides on the support base (1) and is pulled out from the front opening (23) of the cabinet (21). The upper surface of the chassis (2) is exposed without blocking the sides. Therefore, workability when exchanging and repairing the magazine (3) and the recording / reproducing unit (7) is improved. The recording / playback section (7) is a cabinet rather than the magazine (3).
Since it is installed on the side of the opening (23) of (21), the chassis (2)
When is pulled out from the opening (23), the recording / reproducing section (7) is exposed first, and then the magazine (3) is exposed. Recording / playback section
(7) has a higher maintenance frequency than the magazine (3) and is often pulled out from the cabinet (21). In the apparatus according to the present invention, when the chassis (2) is pulled out, the recording / reproducing section (7) is exposed first, so the workability during maintenance is good. At the first position where the recording / reproducing unit (7) is pulled out and at the position where the chassis (2) is housed in the cabinet (21), the chassis (2) is attached to the support base (1) by the engaging mechanism. Get caught. This allows the recording / playback of the disc and the playback unit
During the maintenance of (7), the chassis (2) does not move carelessly, the recording / reproducing operation is stable, and the workability of the recording / reproducing unit (7) during maintenance is improved.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An example of the present invention will be described in detail below with reference to the drawings. The same configurations as those of the related art will be denoted by the same reference numerals and detailed description thereof will be omitted. 1 is a perspective view of the disc recording / reproducing apparatus, and FIG. 2 is a front view of FIG. On the bottom of the cabinet (21), which is the external appearance of the device, is the support base (1).
And a chassis (2) is slidably provided on the support base (1). Cabinet (21) is open on the front
(23) Then, the chassis (2) appears and disappears through the opening (23). The lower end of the opening (23) is pivotally supported by the cabinet (21) (4
The chassis (2) is housed in the cabinet (21) when it is covered with (5) and the door body (45) is closed. In the following description, the direction in which the chassis (2) is stored in the cabinet (21) is the front. A magazine (3) is rotatably provided on the chassis (2), and the magazine (3) is radially formed with a plurality of disc holding grooves (31) for accommodating discs. Two recording / reproducing sections (7) (7) for recording / reproducing the disc ejected from the magazine (3) are provided outside the rotation transfer path of the magazine (3) so as to be separated from each other. A first circuit board (70) electrically connected to both the recording / reproducing sections (7) and (7) is erected between 7 and (7). Two recording / reproducing sections (7) and (7) are provided for recording and reproducing the disc without interruption.

A second circuit board (71) is provided on the rear side of the top surface of the cabinet (21), and the first circuit board (70) and the second circuit board (71) are wire harnesses (not shown). No)). The chassis (2) can be pulled out from the cabinet (21) by removing the harness from the second circuit board (71). Figure 4 shows the recording / playback section (7) and magazine
It is sectional drawing which looked at (3) from the side surface. A roller unit (6) composed of a pair of rollers (60) (60) for sandwiching and carrying the disc is provided between each recording / reproducing section (7) and the magazine (3). Between the magazine (3),
A sensor means (SE3) for detecting passage of the disk is provided. Incidentally, instead of the sensor means (SE3) or together with the sensor means (SE3), a sensor means (SE4) for confirming the mounting of the disc is provided in the recording / reproducing section (7) as shown by the alternate long and short dash line in FIG. May be. On the chassis (2),
A kicking member (26) whose tip enters the magazine (3) and kicks the disc outward is provided slidably in the radial direction of the magazine (3).

When the kicking member (26) kicks the disc out of the magazine (3), the roller unit (6) clamps the disc after the passage of the disc by the sensor means (SE3), and the recording / reproducing unit Carry to (7). As shown by the alternate long and short dash line in FIG. 4, when the disc is inserted in the recording / reproducing section (7), a part of the disc fits into the roller unit (6). In this state, the roller unit (6) releases the holding of the disc, and the disc becomes rotatable. Recording / playback unit (7)
When the disc D therein is returned to the magazine (3), the roller unit (6) holds the end portion of the disc, and the recording / reproducing section (7)
Transport it to.

Various structures are conceivable for the recording / reproducing section (7), but the applicant has previously proposed the structure shown in FIG. 10 (Japanese Patent Laid-Open No. 6-195842). This has a pickup mounting body (90) pivotally supported at the upper end of a disk housing case (9) having an open side surface, and a clamper plate (91) at the lower end thereof. The wall of the disk storage case (9) has a through hole.
(95) (95) has been opened. The side opening of the disc housing case (9) faces the disc holding groove (31) of the magazine (3). The pickup mounting body (90) has a turntable (93) for rotating the pickup (94) and the disc, and has a fitting shaft (96) protruding from the lower end thereof. Also, clamper plate
(91) has a clamper (92) at the free end,
(97) is protruding. The fitting shaft (96) and the leg shaft (97) are provided with a cam groove (9) formed in a cam plate (98) that slides on the chassis (2).
The pickup mounting body (90) and the clamper plate (91) are fitted around the pivotal support and are fitted to the cam plates (98). When the disc is conveyed to the disc housing case (9), the sensor means (SE3) (see FIG. 4) detects the passage of the disc. The cam plate (98) slides, the clamper plate (91) and the pickup mounting body (90) rotate about the pivotal support, and pass through the through holes (95) (95) of the disc housing case (9). Overlap,
The disc is held between the clamper (92) and the turntable (93). Turntable (93) rotates, pickup (94)
Moves in the radial direction of the disc, and the disc is recorded and reproduced.

As shown in FIG. 1, the recording / reproducing section (7) is located closer to the opening (23) of the cabinet (21) than the magazine (3). Therefore, when the chassis (2) is pulled out from the cabinet (21), first, as shown in FIG. 3 (b), the recording / reproducing unit (7)
(7) is exposed, and then the recording / reproducing sections (7) and (7) and the magazine (3) are exposed as shown in FIG. in this way,
When the chassis (2) is pulled out, the recording / reproducing section (7) (7) is first exposed because the recording / reproducing section (7) often replaces or repairs the pickup (94), and therefore the magazine (3). The maintenance frequency is higher than that. Therefore, the cabinet (2
In many cases, the recording / reproducing sections (7) and (7) are exposed in consideration of workability during repair and replacement. In addition, when the recording / reproducing section (7) (7) is exposed, the chassis
(2) is supported by the support base (1), but the support base (1)
Since the amount of protrusion from is small, there is no fear that the cantilever-supported chassis (2) will be deformed.

As shown in FIG. 3B, the recording / reproducing section (7)
The position of the chassis (2) where (7) is exposed is the first position,
As shown in FIG. 3 (a), the recording / reproducing section (7) (7) and the magazine
The position of the chassis (2) where (3) is exposed is defined as the second position. When the first position and the chassis (2) are housed in the cabinet (21), the chassis (2) is a support base.
Engages with (1) and prevents inadvertent sliding. In the second position, the chassis (2) and the support base (1) are disengaged. The engagement mechanism between the chassis (2) and the support base (1) will be described.

FIG. 5 is an exploded perspective view of the chassis (2) and the support base (1). The magazine is on the front side of the chassis (2).
(3) and the recording / reproducing unit (7) are mounted, but since the engaging mechanism with the support base (1) is provided on the back side of the chassis (2), the magazine (3) and the recording / reproducing unit are provided for convenience of explanation. The description of the part (7) is omitted, and the outer shape of the chassis (2) is shown by a chain line. Chassis
A first rail rod (27) extending forward and backward is provided on the back surface of (2), and a second rail rod (11) extending in the same direction as the first rail rod (27) is provided on the upper surface of the support base (1). ) Are provided respectively. Support base
(1) Tire body (12) (12) (12) is provided on the chassis
(2) is placed on the tire body (12), (12), (12) and the height position is determined. As shown in FIG. 6, the first rail rod (27) and the second rail rod (11) are By fitting, the chassis (2) is prevented from coming off upward.

Three pins are mounted on the support base (1) shown in FIG.
(10) (10) (10) is erected, and the recess (2
The stopper pieces (28), (28), and (28) that open 8a) are provided. In the state where the chassis (2) is housed in the cabinet (21), the recess (28a) of the stopper piece (28) contacts the pin (10) to perform the longitudinal positioning. A base end of a lever unit (5) is pivotally supported on the support base (1), and the lever unit (5) is biased by a spring (53) in a counterclockwise direction.
On the lower surface of the chassis (2), recesses (25) that engage with the lever unit (5) are provided at two front and rear positions, and an inclined surface (24
The engagement rod (24) forming a) is fixed. Also, on the side of the engaging rod (24), as described later, the lever unit (5)
And a switching rod (8) for disengaging the engagement rod (24) and the engagement rod (24) are provided so as to be slidable back and forth. The switching rod (8) has a spring (8
2) It is energized, and bending pieces (80) (80a) project downward from both front and rear ends. A manual pushing piece (81) penetrating the chassis (2) projects upward from the vicinity of the bending piece (80a) on the rear side. The lever (5) and the engagement rod (24) are disengaged by grasping the manual pushing piece (81) from the upper side of the chassis (2) and sliding the switching rod (8) forward.

FIG. 7 (a) is a plan view of the lever unit (5), and FIG. 7 (b) is a side view of FIG. 7 (a) viewed from the direction B. The lever unit (5) has a hook pin (52) from the free end.
The engaging lever (50) protruding upward, and the engaging lever (5
0) and an auxiliary lever (51) that is concentric with each other,
(0) is urged by the spring (53), and the stopper shaft on the support base (1)
Pressed against (13). The auxiliary lever (51) is biased in the clockwise direction by the torsion spring (54) fitted to the rotation center of the engagement lever (50), and is bent to the side of the bending plate (55) protruding downward from the auxiliary lever (51). The end is in pressure contact with the engagement lever (50). The auxiliary lever (51) has a switching rod (8) as described later.
A cam end surface (56) with which the bent piece (80) of the cam contact is formed.
The bending piece (80) of the switching rod (8) faces the end surface of the auxiliary lever (51), and when the switching rod (8) is pushed forward, the bending piece (80) kicks the auxiliary lever (51), Rotate in the direction.

In FIG. 9 (a), the chassis (2) has a cabinet (2
FIG. 3 is a plan view showing the positional relationship between the engaging rod (24) and the lever unit (5) at the position housed in (1), (b) at the first position, and (c) at the second position. Chassis (2) is cabinet (21)
In the state of Fig. 9 (a) when it is stored inside, the engaging lever
The hooking pin (52) of (50) and the recess (25) on the rear side of the engaging rod (24).
Are engaged. Also, the bent piece (8
0a) is approaching the auxiliary lever (51). In order to pull out the chassis (2) from the position shown in FIG. 9 (a), first push in the manual pushing piece (81) (see FIG. 5) and set the switching rod (8) to the spring (82).
To move forward once against. As shown in FIG. 8 (a), the bending piece (80a) of the switching rod (8) rotates the auxiliary lever (51) clockwise, and the engaging lever (50) pushed by the bending plate (55). Also connected and rotated. The hooking pin (52) of the engaging lever (50) comes off the recess (25) of the engaging rod (24), and the engaging lever (50) and the engaging rod (2
4) Disengagement. As a result, the chassis (2) and the support base (1) are disengaged, and the chassis (2) can be pulled out. When you release your hand from the switching rod (8), the switching rod (8) springs.
It is returned counterclockwise by (82). When the chassis (2) is pulled out, the chassis (2) is at the first position, that is, the recording / reproducing unit.
(7) Head toward the exposed position of (7).

While the chassis (2) is being pulled out to reach the first position, the hooking pin (52) is attached to the end surface of the engaging rod (24) as shown in FIG. 8 (b). Switch bar while touching
The bent piece (80) at the front end of (8) contacts the cam end surface (56) to rotate the auxiliary lever (51) counterclockwise. Since the engaging pin (52) of the engagement lever (50) is in contact with the engagement rod (24), the counterclockwise rotation is restricted, and the bending piece (8) at the front end of the switching rod (8) is restricted.
(0) turns only the auxiliary lever (51), and the auxiliary lever (51)
While sliding on the cam end surface (56) of, slide backward. Switching rod
The contact between (8) and the auxiliary lever (51) is released, and the auxiliary lever (51) returns to its original position by the torsion spring (54). The chassis (2) reaches the first position. As shown in FIG. 9 (b), in the first position, the hooking pin (52) of the engaging lever (50) is a spring.
(53) The chassis (2) engages with the support base (1) by being fitted into the recess (25) at the front end of the engagement rod (24) by the urging force.

To move from the first position to the second position, that is, to the position where the recording / reproducing sections (7), (7) and the magazine (3) are exposed, the switching rod (8) is pushed again and the engaging lever is pushed. The engagement between the engaging rod (24) and the (50) is released, and the chassis (2) is pulled out. In the second position, the engagement rod (24) is located rearward of the engagement lever (50), and the chassis (2) is not engaged with the support base (1). The chassis (2) has a support base (1) and a door (4
Straddle 5). To return from the second position to the first position,
Push the chassis (2) in from the position shown in FIG. 9 (c). The inclined surface (24a) of the engaging rod (24) and the hooking pin (5) of the engaging lever (50).
2) abuts and the engaging lever (50) rotates clockwise against the spring (53), and when the hooking pin (52) and the recess (25) of the engaging rod (24) face each other, The engagement lever (50) is fitted to the engagement rod (24).
The same operation is performed when the chassis (2) reaches the position where it is housed in the cabinet (21) from the first position.

The device according to this example has the following effects. The chassis (2) slides on the support base (1) and is pulled out from the front opening (23) of the cabinet (21). The upper surface of the chassis (2) is exposed without blocking the sides. Therefore, workability when exchanging and repairing the magazine (3) and the recording / reproducing unit (7) is improved. The recording / playback section (7) is a cabinet rather than the magazine (3).
Since it is installed on the side of the opening (23) of (21), the chassis (2)
When the disk is pulled out from the opening (23), the recording / reproducing section (7) is first exposed at the first position, and then the engagement between the chassis (2) and the support base (1) at the second position. The gap is removed and the magazine (3) is exposed. Generally, the recording / reproducing unit (7) has a higher maintenance frequency than the magazine (3) and is often pulled out from the cabinet (21). In the device according to the present invention, the chassis
When the item (2) is pulled out, the recording / reproducing unit (7) is exposed first, so that the workability during maintenance is good. At the first position where the recording / reproducing unit (7) is pulled out and at the position where the chassis (2) is housed in the cabinet (21), the chassis (2) is attached to the support base (1) by the engaging mechanism. Get caught. This allows the recording / playback of the disc and the recording / playback section.
During the maintenance of (7), the chassis (2) does not move carelessly, the recording / reproducing operation is stable, and the workability of the recording / reproducing unit (7) during maintenance is improved. Further, in the second position, the chassis (2) is attached to the support base (1).
Since it can be removed from the recording / playback section, it is used frequently.
It is also possible to replace (7) with the chassis (2). Also in this respect, there is a peculiar effect of this example.

The above description of the embodiments is for explaining the present invention, and should not be construed as limiting the invention described in the claims or reducing the scope. The configuration of each part of the present invention is not limited to the above-mentioned embodiment, and it goes without saying that various modifications can be made within the technical scope described in the claims.

[Brief description of drawings]

FIG. 1 is a perspective view of a disk recording / reproducing device with a chassis pulled out.

FIG. 2 is a front view of FIG.

3A is a plan view of a second position, and FIG. 3B is a plan view of a first position.

FIG. 4 is a side view of a recording / reproducing unit and a magazine.

FIG. 5 is an exploded perspective view of a chassis and a support base.

FIG. 6 is a front view showing the fitting of the first rail rod and the second rail rod.

FIG. 7A is a plan view of a lever unit, and FIG. 7B is a plan view of FIG.
It is the side view seen from the direction.

FIG. 8A is a plan view showing a state in which the switching rod releases the engagement between the engagement lever and the engagement rod, and FIG. 8B is a plan view showing a state in which the chassis is pulled out from FIG. 8A.

9A and 9B are plan views showing the positional relationship between the engagement rod of the chassis and the lever unit, where FIG. 9A is the position where the chassis is housed in the cabinet, FIG. 9B is the first position, and FIG. ) Is the second
The position of each is shown.

FIG. 10 is a side sectional view of a recording / reproducing unit.

FIG. 11 is a perspective view of a conventional disc recording / reproducing apparatus.

FIG. 12 is a side cross-sectional view of the same input / output unit and magazine.

[Explanation of symbols]

(2) Chassis (3) Magazine (7) Recording / playback section (8) Switching rod (21) Cabinet (23) Opening (24) Engaging rod (25) Recess (31) Disc holding groove

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Masahiro Moriyama 2-5-5 Keihan Hondori, Moriguchi City, Osaka Prefecture Sanyo Electric Co., Ltd. (72) Osamu Maeda 2-5 Keihan Hondori, Moriguchi City, Osaka Prefecture No. 5 within Sanyo Electric Co., Ltd. (56) Reference JP-A-7-220367 (JP, A) JP-A-3-16061 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G11B 17/22-17/30

Claims (2)

(57) [Claims] 1. A rotatably mounted on a chassis (2),
A magazine (3) radially formed with a plurality of disc holding grooves (31) for accommodating the discs upright and a recording / reproducing section (outer of a rotation transition path of the magazines (3) for recording and reproducing the discs ( 7) and the chassis (2), and the magazine
In a disc recording / reproducing apparatus having a cabinet (21) covering (3), the cabinet (21) has a front opening (23), and the chassis (2) is a support base located on the bottom surface of the cabinet (21). It is slidable with respect to the stand (1) and is retractable from the opening (23), the recording / reproducing section (7) is arranged closer to the opening (23) than the magazine (3), and the chassis (2) is The first position where the recording / reproducing section (7) is exposed from the cabinet (21), the recording / reproducing section (7) and the magazine (3)
Is gradually extracted to a second position where and are exposed, and at least one of the support base (1) and the chassis (2) is
Disc recording characterized in that an engaging mechanism for hooking the support base (1) and the chassis (2) is provided at the first position and the position where the chassis (2) is housed in the cabinet (21). Playback device. 2. The engagement mechanism includes an engagement lever (50) rotatably provided on a support base (1) and a bottom surface of the chassis (2), and a tip portion of the engagement lever (50). Dent that is caught by (25) (25)
And a switching rod for releasing the engagement between the engagement lever (50) and the engagement rod (24) on the chassis (2).
The disc recording / reproducing apparatus according to claim 1, wherein (8) is slidably provided.