JPS61110364A - Compact disk player - Google Patents

Abstract

PURPOSE:To allow a compact disk being reproduced to be viewed from outside by providing a player body at a visible position in the front of a cabinet, covering this player body with a transparent front cover in an opening/closing state, and irradiating the compact disk by a strobe light emission body. CONSTITUTION:The player body 2 is installed slanting about 25 deg. below the horizon, a spindle 6 equipped with a turntable is provided at the center part, and a compact disk is loaded to reproduce information. The player body 2 where the compact disk is loaded is covered with the front cover 3 molded out of high-transparency acrylic resin, etc., in a dome shape. The compact disk in playback operation is irradiated by the strobe light emission body (not shown in figure) provided where the top surface of the disk can be irradiated at a period synchronizing with one turn of the disk, so that a description and a pattern on the disk are read sharply although it rotates.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention has a player body installed at a visible position on the front side of the cabinet, and the player body is covered with a transparent front cover that can be opened and closed, and recorded information is reproduced. This invention relates to a compact disc player having a structure that allows the compact disc inside to be easily viewed from the outside.

(Prior Art) In most conventional compact disc players, the main body of the player is installed at the back of the cabinet, and a loading device is used to insert and remove compact discs between the compact disc insertion slot on the front and the main body of the player.

However, if you install the player in a visible position on the front side of the cabinet and cover it with a transparent front cover, you can see the compact disc being played from the outside, making it very interesting. .

(Purpose of month b) Therefore, the purpose of this invention is to be able to view the entire compact disc from the outside while the recorded information is being played back, and in particular, even though the compact disc rotates at a fairly high speed, It makes it possible to read displayed articles, designs, etc., and
To provide a compact disc player having a structure in which a loading case enters and exits from the front side of a cabinet to O-load compact discs.

(Structure of the Invention) In order to achieve the above object, the compact disc player of the present invention has a player body installed at a visible position on the front side of the cabinet, and the player body is covered with a transparent front cover so as to be openable and closable. . A removable loading case is installed that protrudes from above the player body toward the front of the cabinet, and the loading case is provided with a through hole that is concentric with the turntable on the player body and has a diameter slightly larger than that of a compact disc. A disk tray is installed in the through hole so as to be movable up and down with a predetermined stroke, for receiving a compact disk and placing it on the turntable, or for lifting and protruding a compact disk on the turntable. Further, a clamper holder case is installed above the through hole of the loading case and is arranged to cross the through hole in the diametrical direction so as to be freely movable toward or away from the turntable.

The clamper holder case has a clamper section located concentrically with the turntable, and a strobe light emitter positioned to equally illuminate the entire surface of the compact disc clamped on the turntable.

(Function and Effect) In the case of this compact disc player, the compact disc during playback of recorded information can be viewed almost completely from the outside through the front cover. As long as the front cover is opened and closed automatically, the compact disc being played or the player itself will never be damaged by foreign objects entering from the outside.

Moreover, when the strobe light emitter is made to emit light at a period synchronized with one rotation of the compact disc, this illuminates the closest position to the compact disc, making it easier to see the compact disc from the outside while recorded information is being reproduced.

Furthermore, if we look at one point on a rotating compact disc, the flash is irradiated at the same position on the rotation trajectory, not 6S4, so that point appears to be stationary. As a result, even though the compact disc is rotating, the articles and graphics displayed on it can be read as brightly and clearly as if it were stationary. Therefore, during playback of a compact disc, it is possible to read all the information recorded on the compact disc and select the information to be played next.

Next, when a signal is input to set or reset a compact disc, the loading case moves in and out almost horizontally at the front of the cabinet, and the compact disc is delivered and received via the disc tray that is integrated with the loading case. It's new and interesting.

(Example) FIG. 1 shows the front side portion of a compact disc player according to the present invention.

In the figure, 1 is a cabinet, 2 is a player body installed in a visible position on the front side of the cabinet 1, 3 is a transparent dome-shaped front cover that covers the front of the player body 2 and can be opened and closed, 4 is a clamper device, and 8 is the loading case.

As shown in Figure 2, the player body 2 is approximately 2
It is installed with a downward slope of about 5 degrees. A turntable 5 and a spindle 6 are protruded from the center thereof, and the turntable 5 is rotationally driven by a motor 5' (FIG. 4). 2' in FIG. 3 is an information reading section.

The front cover 3 is made of highly transparent acrylic resin or the like, and is made of a material suitable for compactly opening and closing the front of the player body 2 as close as possible to the player body 2 in the opening/closing direction (left-right direction in FIG. 2). Radius of curvature (e.g. R150
It is formed into a curved dome shape. and,
As shown in Fig. 9, the front cover 3 has both side edges slidably fitted into guide grooves 7 of the same curvature provided in the casing plate 7.7 on both sides, and guides its movement. has been done. The guide 1j17- has a groove width slightly larger than the plate thickness of the front cover 3, and its length is set from the front upper surface position of the loading case 8 that covers the upper part of the player main body 2 as a base point (Fig. 2), and extends from the front side toward the back side. Length 1 < 1st with enough margin for the opening/closing stroke of the cover 3! ! l).

In FIG. 2 and FIG. 98, reference numeral 101 indicates the rotation axis 110 for opening and closing the front cover 3.
It is rotatably supported at an angle of 7°. A gear 102 attached to the shaft end of the rotating shaft 110 and outside the casing plate 7 is meshed with a driving pinion 103 of a motor 104 installed inside the casing plate 7.

On the other hand, on the inner side of the lid plate 105 that covers the top surface of the cabinet 1, as shown in FIG. 106 is installed (Fig. 2).

The presser O-ra 106 is rotatably attached to the tip of a swinging arm 109 that is rotatably attached to a bracket 107 provided on the inner surface of the cover plate 105 with a pin 108. The swinging arm 109 is constantly subjected to a rotational moment in the direction of pressing the presser roller 106 toward the front cover 3 by a torsion coil spring 200 .

Therefore, the motor 104 can be operated by operating buttons (not shown) or the like.
When the front cover 3 is started, the front cover 3 is freely moved between stations by drive rollers 101, 101 rotated by the motor 104.

Next, as shown in the overall shape of the loading case 8 in FIG.
0, a through hole 1 having a diameter approximately 1 to 2 cm larger than the compact disc 11 and arranged concentrically with the turntable 5.
2 is formed. The through hole 12 is formed into a cylindrical shape by bending the hole edge of the loading case 8 inward about 10 degrees to hide the contents.

The disk receiver m9 is located within the through hole 12 (FIG. 2). The disk holder [19 is formed as a substantially crescent-shaped plate body which is equivalent to cutting out the circle of the compact disk 11 to a width of about 30 am on both the left and right sides (FIG. 6). Each disk support ff19 is installed in a symmetrical arrangement as shown in FIG. The attachment is fixed to the claw pieces 13° and 13° with screws 14.

The claw piece 13° points the upper edge of the lifting plate 13 inward at approximately 90°.
It is formed by bending it (Fig. 6).

By the way, the elevating plate 13 has its two outwardly fixed left and right support shafts 1s and 15 passed through inclined slits 17 and 17 provided on the left and right sides of the drive plate 16 and inclined forward at about 45 degrees. There is. The support shaft 15.15 has a guide slit 2 provided in the substantially triangular head 18a of the slide frame 18 in a direction parallel to the center line of the turntable 5.
1.21 as well, and attach a slide washer etc. from the other side to stop it. Thus, the elevating plate 13 is installed so as to be slidable in the direction of the guide slit 21.

The upper edge of the head 18a is inclined parallel to the inclination of the player body 2 (FIG. 6), and the drive plate 16 is slid along the inside of a guide piece 19 that is bent at a substantially right angle (see FIG. 6).
Figure 2). The lower edge of the drive plate 16 is the head 111a.
It is slidably supported by a bottle 20 fixed to (FIG. 2).

The slide frame 18 is slidably supported at a bent portion 22 at its lower edge by a ball bearing member 25 which is restrained and held by a fixing member 23 having an approximately two-shaped cross section. The ball bearing member 25 moves on the base 24 with the rotation of the ball 25-, and moves the bent portion 22 of the slide frame 18 at an ultra-low l! It is supported so that it can be slid by rubbing. The legs 8a of the loading case 8 are fixed to the outside of the slide frame 18 with screws 26, 26, and both move together.

A rack rod 21 having a substantially square cross section is installed on the upper surface of the fixing bracket 23 so as to be able to slide freely in the same direction as the slide frame 18 (Fig. 4). 28 in Fig. 9 is attached to the slide frame 18 facing inward at a substantially right angle. It is a passive pin. 29 in the figure is rack rod 2
This is a long groove provided in the longitudinal direction of the side abdomen of No. 7. The driven pin 28 is passed through the long groove 29, and is slidable from the front side. It is fixed with 3G and El ring 31 (Fig. 4),
The long groove 29 has a groove width slightly larger than the outer diameter (φ3 position) of the driven pin 28, and the rack rod 21 can be inserted while the slide frame 18 is stopped.
It is formed to have a length equal to the amount of movement (stroke) desired to be moved.

A rack 32 is continuously fitted over almost the entire length in the longitudinal direction at a 1/3 width portion of the inner path on the upper surface of the rack rod 27, and a driving pinion 33 is meshed with the rack 32.

The driving pinion 33 is rotationally driven by a motor 34 (FIG. 7).

However, the position of the driving pinion 33 remains unchanged.

That is, due to the meshing movement between the driving pinion 33 and the rack 32, which are driven to rotate forward and backward by the motor 34, the rack rod 2
7 moves back and forth at a constant speed. On the other hand, either the left or right end of the long groove 29 abuts (engages) with the driven pin 28 . As a result, slide frame 1B and loading case 8
performs the same movement accompanied by the rack rod 27.

On the other hand, in order to keep the slide frame 18 and loading case 8 stationary at a fixed position while the driven pin 28 moves freely in the long groove 29, the following stopping means is employed.

That is, as shown in FIG. 6, the L-shaped ball holding member 35 is attached and fixed to the inner surface of the slide frame 18, and its horizontal surface portion 35a is parallel to the sliding surface layer between the rack rod 27 and the fixing metal fitting 23. mediated. One ball 36 is loosely held in the substantially central portion of the horizontal surface portion 35a of the ball holding member 35, and the substantially lower half of the ball 36 is fitted into a hole 39 provided in the fixture 23 (FIG. 8). .

On the other hand, on the sliding surface side of the rack rod 27, as shown in FIG. 8, a restraining groove 37 is formed in the longitudinal direction with a groove width that accommodates half of the ball 36 on the road and a depth that the ball 36 comes into contact with. It is set up. A release recess 38 is provided at the right end of the restraining groove 37 with a depth sufficient to accommodate the entire ball 36. The length of the restraint groove 31 is equal to the length 11129 of the rack rod 2γ.

That is, when the rack rod 27 moves leftward from its current position in FIG.

Therefore, the ball holding member 35 holding the ball 3G, the slide frame 18 to which it is fixed, and the loading case 8 remain stationary not only under the frictional force with the rack rod 27 but also under the action of a considerably large external force. It is kept in perfect condition.

However, just before the right end of the long FR 29 comes into contact with the driven pin 28, the release recess 38 reaches the position of the ball 36, and the restraining force pressing down the ball 36 is released. For this reason,
When the right end of the long groove 29 pushes the driven pin 28, the ball 36 floats up from the hole 39 of the fixture 23. Therefore, the slide frame 18 and the loading case 8 move to the left together with the rack rod 27, the ball holding member 35, and the ball 36.

In other words, in FIG. 2, the loading case 8 and the disc receiver ff 119 perform a forward motion of protruding forward to eject the compact disc 11 that has been played or to pick up a new compact disc 11.

After that, when the driving pinion 33 reverses, the rack rod 27
moves to the right in FIG. At this time, the movement begins with the ball 36 floating in the release recess 38, so that the loading case 8 and the slide frame 18 (therefore, the disc holder is the plate 9) move to the right together with the rack rod 21.

However, from the position where the ball 36 fits into the hole 39 of the fixture 23, the loading case 8 and the slide frame 18 are stopped, and while the restraint 5I37 slides on the top surface of the ball 36, only the rack rod 27 moves to the right. Return to the state shown in Figure 8.

By the way, as shown in FIG. 7, on the upper surface of the rack rod 27, the remaining surface except for the rack 32 has a width of 1/3, and a predetermined length at a predetermined position in the longitudinal direction. racks 40, 41 are formed.

A driven gear 42 that meshes with the rack 40 is installed on the slide frame 18, and a pinion 43 formed integrally with the driven gear 42 meshes with a rack 44 formed on the lower edge of the drive plate 16 described above. ing. A tension spring 45 for restraining the rotation of the driven gear 42 connects the driven gear 42 and the pin 18 installed in the head 18a of the slide frame 18.
It is connected between b.

In other words, when the rack rod 27 moves to the left from the state shown in FIG.
The rack 40 and the driven gear 42 engage with each other while the rack 40 moves by the length of the long groove 29 from the beginning of the movement. This moves the drive plate 16 to the left in FIG. Then, as the inclined slit 17 of the drive plate 16 moves, the support shaft 15 passed through the inclined slit 17 is pushed against the edge of the inclined slit 17, and eventually rises along the guide slit 21 of the head 18a. do. In addition, the support shaft 15
The elevating plate 13, which is integral with the turntable 5, and the disk receiving tray 9 attached thereto are translated (raised) while remaining perpendicular to the center line of the turntable 5, resulting in the state shown in FIG.

In other words, as shown in FIG. It rises to approximately the same level and stops. Therefore, on the way there, the compact disc 11 that is on the turntable 5 and is unclamped by the clamper device 4 is lifted.

The rotation of the driven gear 42 required for the above-mentioned upward stroke of the disk receiver m9 is designed to be less than 180 degrees. That is, the tension spring 45 is fully extended, and at the same time, the rack rod 27 and the slide frame 18 are moved together, so the driven gear 42 stops rolling and the disk support ff119 is brought to the raised position. Fixed.

Therefore, since the loading case 8 and the disk tray 9 move forward and protrude to the left in FIG. 2, the compact disc 11 can be easily taken out or installed.

In order to make it easier to take out or install the compact disc 11, recesses 81 and 91 are provided on both the left and right sides of the loading case 8 and the disc holder ff[19, into which fingers can be easily inserted.

By the way, when the loading case 8 is retracted (retracted)
Also, the disk support m9 maintains its floating state. However, as soon as the loading case 8 reaches the backward limit position and stops, the driven gear 42 and the rack 40 begin to mesh with each other. For this reason, the drive plate 16 is moved rightward in FIG.
1 in the direction of the center line of the turntable 5.

That is, the disc tray 9 sinks into the through hole 12, places the compact disc 11 on the turntable 5 on the way, and descends to a position slightly below the turntable 5 (FIG. 4), where it stops.

At this stop position, the driven gear 42 and the rack 40 are disengaged. Therefore, the restraining force of the tension spring 45 holds the disk tray 9 in the lowered position.

In other words, the rack 40 is formed to a required length at a position that allows the above-mentioned disk support ffn9 to operate.

By the way, the driven gear 50 that meshes with another rack 41 formed on the upper surface of the rack rod 27 is a pinion Soz that meshes with the fan-shaped wheel 51 of the clamper device 4.
The clamper device 4 is also configured to be driven by utilizing the movement of the rack rod 21. After all, the clamper device 4, the loading case 8, and the disk receiver ffl+9 are all operated by one common motor 34.

By the way, as shown in FIGS. 4 and 10, the clamper holder case 52 of the clamper device 4 has a width of about 3 mm.
0 Peng, height about 10JII! It is formed as a thin and elongated plate-shaped hollow frame with a length of about 200 am, and the hollow part is closed with an I plate 201. Clamper holder sheath 5
A vertically cylindrical holder chamber 57 is formed approximately at the center of the holder lsy, and a clamper portion 58 is installed within the holder lsy.

The clamper part 58 has a clamper (hole) 203 in its center large enough for the spindle 6 to fit into, and has a magnet 204 built into its outer periphery, and moves vertically within the holder 57 with a stroke of several layers. It is installed in a loose fit with some play.

In other words, while the clamper holder case 52 is positioned at a predetermined clamping position, the clamper part 58 has the flexibility to tightly contact the turntable 5 within the range of play by the action of the magnet 204, thereby allowing the turntable 5 to The compact disc 11 is firmly restrained and held between the two.

In the clamper holder case 52, window holes 2 opening downward are provided at symmetrical positions on both sides of the clamper part 58.
06° 206 is provided, and a strobe light emitter 207 is fixedly mounted in the window hole 206 facing downward (Fig. 10).
.

Therefore, when the compact disc 25 is clamped to the turntable 5 as described above, when the strobe light emitter 207, 207 is caused to emit light at a period synchronized with the rotational speed of the compact disc 11 using a synchronization circuit (not shown), the compact disc immediately below it 11 at the closest position to produce an illumination effect. Then, it is possible to read the articles and patterns displayed on the compact disc 11 in the same manner as in a static state.

By the way, the clamper holder case 52 has prismatic support arms 208, 208 arranged symmetrically at both ends thereof. This support arm 208 is formed in conjunction with a downward convex portion 208° that is raised downward by approximately 5jl1 from the lower surface of the clamper holder case 52. Both support arms 208.208 support the casing plates on both sides.
The rotating arm 51a protrudes through the arc window 54.54 provided in 7.7 and is disposed on the outer surface side of the casing plate 7.
are connected and supported by screws 56.

The rotating arm 51a has a shaft 55 on the outside of the casing plate 7.
It is formed integrally with a sector gear 51 attached to rotate around the center. The sector gear 51 is a pinion 502
A gear 501, which is integrally formed with the pinion 502 and a gear train, meshes with the driven gear 50.
0 is engaged with the rack 41 which is the power source.

That is, the clamper holder case 52 has its clamper portion 5
The center of the turntable 8 coincides with the center of the turntable 5, and the turntable 5 is rotatably supported (moves up and down). Arc window hole 5
4 forms an arc centered on the shaft 55, and is formed to have a length suitable for the rotation stroke of the clamper holder case 52.

Therefore, after the front cover 3 is fully opened by the motor toe, the clamper holder case 52 is rotated and raised to the upper limit position by the meshing movement of the day shift gear 50 and the rack 41 as the rack rod 21 moves, making it compact. The disc 11 is set on the turntable 5 of the player body 2.

After the compact disc 11 is set, as the rack rod 27 moves, the nion 502 is reversed and the clamper holder case 52 is lowered by the meshing movement with the sector gear 51. Then, the compact disc 11 is clamped to the turntable 5 by the clamper section 58.

Thereafter, when a reset signal for the compact disc 11 is input, the front cover 3 is completely opened, the pinion 502 is reversed again, the clamper holder case 52 is raised to the upper limit position, and the compact disc 11 is
This makes it possible to reset the

By the way, in contrast to the downward protrusion 208' formed integrally with the support arm 208 in the clamper holder case 52, the loading case 8 has the protrusion 208° arranged symmetrically on both sides of the through hole 12. A recess 81, 81 is formed in which the member is tightly fitted and abutted.

In other words, the lowered clamper holder case 52 is stopped from lowering once its convex portion 208° comes into contact with the bottom of the recessed portion 81 of the loading case 8.

Therefore, the stopping position of the clamper holder case 52 is determined mechanically and structurally as the abutting position of the convex portion 208′ and the concave portion 81. In this way, the clamper holder case 52 is always mechanically held at the two stopping positions, so that the clamper section 58 can always clamp the compact disc 11 reliably and accurately. Therefore, problems such as inability to play due to overload do not occur at all.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a compact disc player that employs an O-ding device according to the present invention, Fig. 2 is a sectional view taken along the line II-II in Fig. 1, and Fig. 3 is a view taken in the direction indicated by the ■ arrow in Fig. 2. ,
Fig. 4 is a sectional view taken along rV-IV in Fig. 3, Fig. 5 is a perspective view of the loading case, Fig. 6 is an exploded perspective view of the loading case and disk tray, and Fig. 7! l! 1 is an explanatory diagram of the rack rod and related elements; FIG. 8 is an explanatory diagram of the braking mechanism; FIG. 9 is an explanatory diagram of the front cover mechanism;
The figure is an exploded view of the clamper device.

Claims (1)

[Claims] (1) A player body (2) is installed in a visible position on the front side of the cabinet (1), and the player body (2)
is covered with a transparent front cover (3) that can be opened and closed freely, and a loading case (8) that protrudes forward from the position of the player body (2) and can be moved in and out is installed. Table (5)
A disk tray (9) is installed in a through hole (12) that is concentric with the compact disk and has a diameter slightly larger than that of the compact disk (11), and is movable up and down. (12) A clamper holder case (52) arranged to cross the through hole (12) in the diametrical direction is installed above the turntable (5) so that it can freely move toward or away from the turntable (5). ) has a clamper part (58) concentrically with the turntable (5), and a strobe light emitter (58) arranged to illuminate the compact disc (11) clamped on the turntable (5).
207) is installed.