JP2966812B2 - 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 disk recording and reproducing apparatus for recording and reproducing a disk by pulling the disk into a cabinet.

[0002]

2. Description of the Related Art FIG. 12 shows a known disk recording / reproducing apparatus. This is a slide panel on which a disc D is placed in a cabinet (1) with an open front.
(4) is provided so that it can appear and disappear. In addition, cabinet (1)
Inside, a clamper (50) that covers the disk D and holds the center of the disk is provided so as to be able to move up and down. On the side surface of the cabinet (1), a guide groove (12) in which the sliding shafts (42) protruding from the side of the slide panel (4) fits extends horizontally. The disk D is placed on a concave surface (40) formed on the upper surface of the slide panel (4). Slide panel
To place the disk D on (4), first, slide panel
(4) is pulled out of the cabinet (1) to expose the concave surface (40), and the disc is placed on the concave surface (40). When recording or reproducing a disc, the slide panel (4) is pushed into the cabinet (1). The clamper (50) descends, and the turntable (not shown) on the slide panel (4)
In between, the center of the disk D is held lightly, and the turntable rotates to perform recording and reproduction.

[0003]

In the conventional apparatus, the concave surface (40) is required to mount the disk on the slide panel (4).
Must be exposed, the distance from the front of the cabinet (1) to the tip of the slide panel (4) becomes longer. For this reason, when there is any obstacle in front of the cabinet (1), the slide panel (4) cannot be fully opened,
There is a problem that the disk cannot be easily mounted. Further, if the slide panel (4) is housed in the cabinet (1) in a state in which the slide panel (4) is easily rattled, there is a possibility that recording and reproduction may not be performed stably when an external impact is applied. The present invention
An object of the present invention is to reduce the protrusion length of a slide panel and prevent rattle of a slide panel stored in a cabinet in a state where the slide panel is completely opened.

[0004]

A slide panel having a turntable (3) for rotating a disk at the time of recording / reproduction protruding substantially in the center is provided in a cabinet (1) having an open front surface.
(4) is a guide groove (1) opened on the side of the cabinet (1).
A clamper (50) is provided so as to be able to come and go along 2), covers the disk on the turntable (3) during recording and reproduction, and holds the disk. The clamper (50) is a clamper plate that can be moved up and down in the cabinet (1).
(5), a lower end of a front panel (2) covering the opening is pivotally supported at a front opening of the cabinet (1), and a spring is provided on an inner surface of the cabinet (1) in a disk discharging direction. One end of the slide is exposed to the front opening of the cabinet (1), and a slide piece (8) is connected to the clamper plate (5) to raise and lower the clamper plate (5). (4) has both ends fitted into the free end of the front panel (2) and the guide groove (12), respectively. In conjunction with opening and closing of the front panel (2), the slide panel (4) slides along the guide groove (12), and when the opening of the front panel (2) is completed, the slide panel (4) and the front panel (4). The fitting portion of (2) is located below the guide groove (12), the slide panel (4) is exposed from the cabinet (1) with the disc concave surface (40) facing upward, and the front panel (2) is exposed. In the closed state of (), the slide piece (8) is pushed into the front panel (2) at one end protruding from the front opening of the cabinet (1), and is retracted into the interior of the cabinet (1). 5) toward the turntable (3). The slide panel (4) and front panel (2) are
A fitting shaft (41) protruding from (4) fits into the hole (20) of the front panel (2) by being fitted with a margin, and the fitting shaft (41) is fitted to the front panel (2). A spring member is provided for urging the end of the hole (20) in the closing direction, and the slide panel (4) which has already reached the end of the guide groove (12) during the closing operation of the front panel (2). With the further rotation of the front panel (2) in the closing direction, the spring member presses the fitting shaft (41) in the closing direction, so that the slide panel (4) is closed in the guide groove in the closed state. It is pressed against the end of (12).

[0005]

[Operation and Effect] The slide panel (4) appears and disappears in conjunction with opening and closing of the front panel (2). When the front panel (2) is completely opened, one end of the slide panel (4) has a guide groove ( 12), the other end is fitted to the free end of the front panel (2) located below the guide groove (12). That is, the slide panel (4) is tilted in the opened state,
In addition, since the entire surface is exposed, the distance from the tip of the slide panel (4) to the cabinet (1) can be set short.
Therefore, even if there is an obstacle in front of the cabinet (1),
The possibility that the completion of opening is prevented by the obstacle can be reduced. Further, when the front panel (2) is completely closed, the slide panel (4) is pressed against the end of the guide groove (12) by a spring member, so that careless sliding is restricted. As a result, even if an external impact is applied, the slide panel (4)
There will be no recording / reproducing trouble due to backlash. Since the slide panel (4) can be slid by manually opening and closing the front panel (2), a drive source for separately sliding the slide panel (4) is not required, and the apparatus is inexpensive. Can be configured. Since the clamp operation is performed after the slide panel 4 reaches the end of the guide groove 12, that is, the recording / reproducing position, the disk is clamped in a stable state, and the reliability is improved. Further, since the disk is securely held between the turntable (3) and the clamper (50), the disk is hardly affected by the vibration of the disk due to the sound pressure from the built-in speaker, and good reproduction can be performed. You.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 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. FIG. 1 is a perspective view of a disk recording / reproducing apparatus. Cabinet that is the main body of the device
(1) is formed by connecting the front ends of a pair of side plates (10) and (10) by connecting rods (11), and the upper surface of the space between the side plates (10) and (10) is substantially the same as the disk D. A slide panel (4) having a concave surface (40) having a diameter is provided. A lower end of a front panel (2) is pivotally supported (25) below the front end of the cabinet (1), and the front panel (2) is turned upward and closed between the side plates (10) and (10). Cover the front opening. Front panel (2)
A locking claw (not shown) protrudes from the free end of the front panel 2, and when the front panel (2) is closed, the locking claw is engaged with the connecting rod (11). The front panel (2) is urged in the opening direction by a torsion spring (23) fitted to a pivot (25) with the side plate (10) (see FIG. 4).

A fitting shaft is provided from the front end of the slide panel (4).
The sliding shaft (42) projects outward from the rear end, and the fitting shaft (41) slides into the hole (20) formed at the free end of the front panel (2). The drive shaft (42) is fitted in the guide grooves (12) (12), which extend and extend in the side plates (10) (10), respectively. When the opening of the front panel (2) is completed,
The fitting shaft (41) fitted in (2) is located below the guide groove (12). That is, when the front panel (2) is completely opened, the slide panel (4) is inclined with the concave surface (40) facing upward. Further, the sliding shaft (42) is in contact with the front end of the guide groove (12), and restricts the front panel (2) from opening beyond the completed state.

A turntable (3) on which a disk (D) is placed protrudes from the center of the concave surface (40) of the slide panel (4). Turntable on slide panel (4)
An opening (43) is opened on the side of (3), and the pickup (30) that slides in the disk radial direction is exposed from the opening (43). On one side of the front panel (2) is a gear (2
1) is formed, and the gear (2) is provided at the front end of one side plate (10).
A damper (22) that meshes with (1) and prevents the front panel (2) from opening suddenly is attached as is well known. Figure 1,
As shown in FIG. 7, a base end of a clamper plate (5) is pivotally supported (51) at the back of the cabinet (1).
Is provided with a clamper (50) for lightly holding the disk D from above in conformity with the turntable (3). The clamper plate (5) is urged upward by a torsion spring (52) fitted to the pivot (51). Clamper (50)
Has a built-in magnet and rotatably holds the center of the disc with the turntable (3). The disc holding structure of the clamper (50) is a well-known technique, and a detailed description thereof will be omitted.

On the inner surface of the side plate (10) of the cabinet (1),
An elongated slide piece (8) is provided to be slidable back and forth, and the slide piece (8) is biased forward of the cabinet (1) by a tension spring (81) provided between the slide piece (8) and the side plate (10). Have been. One end of the slide piece (8) is the cabinet (1)
And a projecting piece (26) abutting on the slide piece (8) protrudes from the front panel (2). As will be described later, when the front panel (2) is closed, the slide piece (8) is pushed in by the front panel (2). At the periphery of the concave surface (40) of the slide panel (4), two through-holes (44) and (44) are formed to extend over the upper surface of the slide panel (4).
The ends of the lifting levers (7) and (7) are fitted in the through holes (44) and (44), respectively. At the tip of the lifting lever (7),
A concave surface (70) is formed at a position located inside (40), and the disc D is received by the turntable (3) and the concave surfaces (70), (70). A detailed description of the lifting lever (7) will be described later.
In the vicinity of the lifting levers (7) and (7), ribs (24) and (24) extending along the longitudinal direction of the front panel (2) are provided on the back side of the front panel (2). .

FIG. 2 is a perspective view of the slide panel (4), and FIG. 3 is a perspective view of the clamper plate (5). At the center of the concave surface (40) of the slide panel (4), a turntable (3)
There is a round hole (45) that fits from below. On the slide panel (4), beside the concave surface (40),
6) (46) is standing. Each through hole (44) is the first on the concave surface (40) side.
The hole (44a) is connected to the second hole (44b) on the slide panel (4) side. A clamper (50) is provided on the side of the clamper plate (5).
Close the first protruding piece (53) to the second protruding piece from the lower side of the pivot (51).
(54) project downward, respectively. As described below,
When the disc is ejected, the sliding piece (46) of the slide panel (4)
Kicks out the first projecting piece (53) of the clamper plate (5).

FIG. 4A is a left side view of FIG. A base (31) to which the pickup (30) and the turntable (3) are attached is provided below the slide panel (4), and the slide panel (4) is made of a rubber vibration isolating piece (32) ( 32)
Is attached to the base (31). The turntable (3) is the round hole (45) in the center of the slide panel (4).
(See FIG. 2) and protrudes above the slide panel (4). On the inner surface of the front panel (2), a pressure contact lever (6) urged counterclockwise by a compression spring (60) is pivotally supported,
The press-contact lever (6) has an end surface on which a fitting shaft of the front panel (2) is fitted.
In contact with (41), the fitting shaft (41) is pressed against the end face of the hole (20) on the disc insertion direction side. When the front panel (2) is completely opened, the slide panel (4) tilts with the concave surface (40) facing upward, and the concave surface (40) of the slide panel (4) is exposed obliquely upward. Good workability when mounting.

In order to perform recording and reproduction on the disk, the front panel (2) is moved in FIG. 4 against the urging force of the torsion spring (23).
Rotate in the closing direction from the state of (a). Pressing lever (6)
Pushes the fitting shaft (41) of the slide panel (4), and the slide panel (4) slides in the depth direction along the guide groove (12).
As shown in FIG. 4B, when the slide panel (4) reaches the back, the slide panel (4) becomes horizontal, and the slide shaft (42) contacts the end of the guide groove (12). In this state, the front panel (2) and the cabinet (1) are not yet engaged. Further, since the fitting shaft (41) is fitted in the hole (20) with a margin, the front panel (2) can be further rotated in the closing direction.

Further, as shown in FIG.
When (2) is pushed in the closing direction, the slide panel (4) has a sliding shaft (42) which has already reached the end of the guide groove (12).
It does not slide backward. Therefore, the fitting shaft (41) does not move backward, and even if the pressing lever (6) pushes the fitting shaft (41) with the rotation of the front panel (2), the pressing lever (6) Receives a reaction force from the fitting shaft (41) and rotates clockwise. The compression spring (60) is pushed in, and the press-contact lever (6) urges the fitting shaft (41) backward. In this state, the front panel (2) and the cabinet (1) are engaged. With the front panel (2) closed, the slide panel (4) is pressed against the end of the guide groove (12) by the pressing lever (6),
Inadvertent sliding is regulated. As a result, even if an external impact is applied, the recording / reproducing trouble due to rattling of the slide panel (4) does not occur. In this embodiment, the slide panel (4) is pressed by the pressure contact lever (6). However, the slide panel (4) may be pressed directly by a compression spring or the like. That is, it is sufficient that the slide panel (4) is pressed by the spring member.

FIG. 6 is a sectional view of FIG. 5 taken along line AA. As described above, when the front panel (2) is closed, the clamper (50) of the clamper plate (5) and the turntable
(3) is combined, the disc is held, and in this state,
The disc is recorded and reproduced. Base (31) and cabinet
As is well known, circuit components for disk recording and reproduction are provided in the space between the bottom surface of (1).

In the apparatus according to the present embodiment, when the front panel (2) is closed, the clamper plate (5) descends and holds the disc between the turntable (3). The operation procedure will be described below. FIG. 7A shows the front panel (2).
Slide (8) and clamper plate in the opened state
It is a side view which shows the positional relationship of (5). For convenience of explanation, the front panel (2) and the cabinet (1) are shown by dashed lines. The slide piece (8) is a recess at the back, and the top is open (80)
The recess (80) is fitted to the second projection (54) of the clamper plate (5). As described above, the clamper plate (5) has a torsion spring (5).
It is urged upward by 2) and is in contact with a stopper (13) projecting inward from the side plate (10).

When the front panel (2) rotates in the closing direction, near the end of the slide panel (4) reaching the end of the guide groove (12), the end of the slide piece (8) comes into contact with the protruding piece (26). start. When the front panel (2) further rotates in the closing direction,
As shown in FIG. 7 (b), the projection (26) of the front panel (2)
Pushes the front end of the slide piece (8) against the tension spring (81). The recess (80) of the slide piece (8)
Push the second protruding piece (54) of (5), against the torsion spring (52),
The clamper plate (5) is rotated clockwise about the pivot (51). FIG. 8A is a side view showing the positional relationship between the slide panel (4) and the clamper plate (5) when the front panel (2) is completely closed. Clamper (50) and turntable
(3) is combined, and the disc is held lightly rotatably. Recording and reproduction can be performed in this state. Slide panel (4)
Is located on the back side of the cabinet (1) with respect to the first projecting piece (53) of the clamper plate (5).

After the recording and reproduction are completed, the slide panel
(4) To remove the upper disk, use the front panel (2)
Rotate in the opening direction. As shown in FIG. 8 (b), when the front panel (2) moves a little, first, the front panel (2)
The slide piece (8) pressed by the projection (26) slides toward the front panel (2) by the tension spring (81).
As a result, the concave portion (80) of the slide piece (8) becomes the clamper plate (5).
The second projecting piece (54) is pushed, and cooperates with the torsion spring (52) to rotate the clamper plate (5) counterclockwise against the clamping force of the clamper (50). As a result, the contact between the clamper (50) and the turntable (3) is released. Up to this point, the slide panel (4) is located at the end of the guide groove (12),
The pressure contact according to (6) is released. Due to the sliding of the slide plate (8) and the elastic force of the torsion spring (52) fitted to the pivot (51), the clamper plate (5) rotates upward and comes into contact with the stopper (13). Further front panel (2)
Is rotated, the slide panel (4) is pulled out as shown in FIG. 4 (a). During the movement of the slide panel (4) being pulled out and at the time of completion of the drawing, even if a rotational force in the clockwise direction is applied to the clamper plate (5) due to an external impact or the like, the clamper plate (5) is not moved. Since the clearance between the one protruding piece (53) and the ejection piece (46) of the slide panel (4) is set to be small, the clamper plate (5) does not rotate clockwise. This prevents the disc from being damaged.

In the apparatus according to the present embodiment, the disk on the slide panel (4) floats when the front panel (2) is completely opened. This structure is shown below. FIG.
FIG. 10 is a plan view showing a state in which the slide panel (4) and the base (31) are mounted, and FIG. 10 is a perspective view of the lifting lever (7). As shown in FIG. 11, the base end of the lifting lever (7) is pivotally supported (73) on each side of the base (31), and a through hole is formed at the front end.
A push-up piece (71) that fits into (44) is provided. The push-up piece (71) is formed with the concave surface (70) that fits into the first hole (44a). On the side of the concave surface (70), there is provided a side wall (74) formed in the same arc as the periphery of the disk. A contact piece (72) projects from the lower end of the push-up piece (71) along the longitudinal direction of the lifting lever (7).

FIG. 11A is a side view showing the positional relationship between the lifting lever 7 and the slide panel 4 when the front panel 2 is closed. The lifting lever (7) is urged downward by a torsion spring (not shown) provided on a pivot (73) with the base (31), and the lifting piece (71) is inserted into the through hole of the slide panel (4). (44), concave (70) is concave
Located below (40). During recording and playback,
Is not pushed up by the lifting lever (7). When the front panel (2) is rotated in the opening direction, the slide panel (4) is pulled out, so that the lifting lever (7) attached to the base (31) also advances, and the ribs ( 24) and the contact piece (72) of the lifting lever (7) approach. As shown in FIG. 11B, the front panel (2)
When the opening is completed, the tip of the contact piece (72) and the rib (24) come into contact with each other, and the lifting lever (7) rotates about the pivot (73) against the urging of the torsion spring. The concave surface (70) lifts the disc D on the slide panel (4). That is, the disk floats with the slide panel (4) exposed, so that the disk can be easily gripped and the disk can be easily taken out. The end surface of the disk abuts against the side wall (74) of the concave surface (70), and stops falling from the slide panel (4).
When the disc is placed on the slide panel (4) and the front panel (2) is rotated in the closing direction, the reverse operation is performed.

In the device according to this embodiment, the disc can be attached to the slide panel (4) in a state where the disc is inclined. In this state, the entire surface of the disk is exposed.
Since the disk is usually formed by coating an aluminum plate with a transparent resin, when the disk is mounted on the slide panel (4) and viewed from the front of the apparatus, the disk shines in rainbow colors, and the aesthetic effect is high. Further, since the slide panel (4) is tilted in the opened state, the distance from the tip of the slide panel (4) to the cabinet (1) can be set short. Therefore,
Even if there is an obstacle in front of the cabinet (1), it is possible to reduce the possibility that the completion of opening is prevented by the obstacle.

When the front panel (2) is completely closed,
Since the clamper plate (5) operated by the slide piece (8) holds the disc, if the front panel (2) is closed,
Recording and playback of discs can be performed immediately. Further, in a state where the front panel (2) is completely closed, the slide panel (4) is pressed against the end of the guide groove (12) by the pressure contact lever (6), and unintentional sliding is restricted. Even if an impact is applied from the outside, the slide panel (4) does not rattle, and no recording / reproducing trouble occurs. Also, since the disk clamp operation is performed after reaching the recording / reproducing position,
The disk is clamped in a stable state, and the reliability is improved. Disc is turntable (3) and clamper
(50), the disk is hardly affected by the vibration of the disk due to the sound pressure from the built-in speaker, and good reproduction can be performed.

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 perspective view of a disk recording / reproducing apparatus with a front panel opened.

FIG. 2 is a perspective view of a slide panel.

FIG. 3 is a perspective view of a clamper plate.

FIG. 4A is a side view showing a position of a slide panel and a press-contact lever when the front panel is opened, and FIG. 4B is a side view showing a state where the front panel is rotated in a closing direction.

FIG. 5 is a side view showing the positions of the slide panel and the press-contact lever when the front panel is closed.

FIG. 6 is a cross-sectional view of FIG. 5 taken along line AA.

FIG. 7A is a side view showing the positional relationship between the slide piece and the clamper plate when the front panel is completely opened, and FIG.
FIG. 2 is a side view of the above-mentioned closed state.

8A is a side view showing a positional relationship between a slide panel and a clamper plate during recording and reproduction, and FIG. 8B is a side view in which the front panel is rotated in an opening direction.

FIG. 9 is a plan view showing a state where the slide panel and the base are mounted.

FIG. 10 is a perspective view of a lifting lever.

11A is a side view showing the positional relationship between the lifting lever and the slide panel when the front panel 2 is closed, and FIG. 11B is a side view showing the open state of the same.

FIG. 12 is a side view of a conventional disk recording / reproducing apparatus.

[Explanation of symbols]

 (1) Cabinet (2) Front panel (4) Slide panel (5) Clamper plate (6) Pressure contact lever (7) Lifting lever (8) Slide piece (12) Guide groove (20) Hole (40) Concave surface (50) Clamper

Claims (4)

(57) [Claims] 1. A cabinet (1) having an opening on the front surface and a guide groove (12) formed on a side surface, a turntable (3) for rotating a disk during recording and reproduction is protruded substantially at the center, and the guide groove (12) is provided. ) And a clamper that covers a disk on the turntable (3) during recording and reproduction and holds the disk rotatably.
In the disk recording / reproducing apparatus provided with the (50), the clamper (50) is mounted on a clamper plate (5) which can be moved up and down in the cabinet (1),
A front panel that covers the opening at the front opening of (1)
The lower end of (2) is pivotally supported, and the inner surface of the cabinet (1) is spring-biased in the disk discharge direction, and one end faces the front opening of the cabinet (1) and is connected to the clamper plate (5). A slide piece (8) for raising and lowering the clamper plate (5) is slidably provided. The ends of the slide panel (4) are respectively provided on the free end of the front panel (2) and the guide groove (12). Fit, slide panel in conjunction with opening and closing of front panel (2)
(4) slides along the guide groove (12), and the front panel
When the opening of (2) is completed, the fitting portion between the slide panel (4) and the front panel (2) is located below the guide groove (12), and the disk is placed on the slide panel (4). The slide piece (8) is exposed at the front opening of the cabinet (1) with the surface to be exposed facing upward and exposed from the cabinet (1), and with the front panel (2) closed. A disc recording / reproducing apparatus characterized in that the disc recording / reproducing apparatus is pushed by 2), retracted into the interior of the cabinet (1), and urges the clamper plate (5) toward the turntable (3). 2. A slide panel (4) and a front panel.
(2) The fitting shaft (41) protruding from the slide panel (4)
Are fitted into the hole (20) of the front panel (2) with a margin, and the front panel (2) is fitted with a fitting shaft (41).
A spring member for urging the front end of the hole (20) in the closing direction is provided.
The spring panel presses the fitting shaft (41) to the closing direction side by the spring member pressing the slide panel (4) reaching the end of (12) with the further rotation of the front panel (2) in the closing direction. 2. The disk recording / reproducing apparatus according to claim 1, wherein the slide panel (4) is pressed against an end of the guide groove (12) when the slide panel (4) is completely closed. 3. A front end portion of the rear side of the slide panel (4) penetrates through the slide panel (4), and in a recording / reproducing state, the front end stands by below the slide panel (4). The base end of the lifting lever (7) is pivotally supported, and the lifting lever (7) rises in contact with the back surface of the front panel (2) when the opening of the front panel (2) is completed, and the distal end slides. 3. The disc recording / reproducing apparatus according to claim 1, wherein the disc is pushed out through the panel (4). 4. A slide panel (4) and a front panel.
(2) The fitting shaft (41) protruding from the slide panel (4)
Are fitted into the hole (20) of the front panel (2) with a margin, and the front panel (2) is fitted with a fitting shaft (41).
A spring member for urging the front end of the hole (20) in the closing direction is provided.
The spring panel presses the fitting shaft (41) to the closing direction side by the spring member pressing the slide panel (4) reaching the end of (12) with the further rotation of the front panel (2) in the closing direction. The slide panel (4) is pressed against the end of the guide groove (12), and by further rotating the front panel (2) in the closing direction,
2. The disk recording / reproducing apparatus according to claim 1, wherein the slide piece (8) is pushed in to lower the clamper plate (5) toward the turntable (3).