JP3395945B2 - Disc player - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention uses a J-shaped rack connected to one drive source to insert a cartridge containing a mini disk from an insertion / removal port so that the mini disk is integrated with the cartridge at a predetermined mounting position. The present invention relates to a disc player configured to automatically rotate.

[0002]

2. Description of the Related Art Recently, a disc player for recording and reproducing a mini disc (MD), which is smaller than a compact disc (CD), has been used, and various types of structures are adopted in this type of disc player. However, Japanese Patent Laid-Open No. 7-240052 discloses an emergency eject mechanism for a disk device using a J-shaped rack. With the emergency eject mechanism of this disc device, the disc tray is manually ejected even in an emergency where the power cannot be turned on due to a power failure or electrical system failure while the disc tray is being loaded. It is configured so that the disc inside the main body can be completely removed.

[0003]

SUMMARY OF THE INVENTION By the way, Japanese Patent Laid-Open No. 7-
In the emergency eject mechanism of the disk device disclosed in Japanese Patent No. 240052, although the J-shaped rack is used to configure the emergency eject mechanism, some disk players operate various mechanisms associated with disk loading. At this time, in developing a disc player that automatically rotates a mini disc to a predetermined mounting position integrally with a cartridge, the technical idea of the J-shaped rack is applied to load the disc with the J-shaped rack. It was considered to operate various mechanisms associated with the operation with a simple structure.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a first aspect of the present invention is to insert and remove a cartridge, which has an openable and closable shutter and stores a disk therein, into a housing. And a loading position in the housing, and a disk player in which the disk in the cartridge reaching the loading position is driven by a disk drive unit provided in the housing, A disk drive unit that is supported movably up and down and that retreats to a lowered position when the cartridge is inserted and removed and that moves to an elevated position when the disk is driven; A J-shaped rack that is connected to a linear rack portion to form an arcuate gear portion, a gear that is provided in the housing and that is rotatable about an axis by being connected to a drive source, and a shaft of the gear. An arm rotatably supported in the center, and a planetary gear which is rotatably supported by the arm and constantly meshes with the gear, and which meshes sequentially with the linear rack portion and the arc gear portion of the J-shaped rack. A slide plate part that engages with the disk drive part and that engages with the arm and is guided and slid by the housing by the rotation of the arm; A pair of chucking levers provided on the left and right of the J-shaped rack for gripping the cartridge when the cartridge is inserted and moving integrally with the J-shaped rack, and rotatably in the vicinity of the insertion / removal opening of the housing. A shutter lever that engages with and opens and closes the shutter when the cartridge moves, wherein the planetary gear meshes with the linear rack portion as the gear rotates. By linearly moving only the J-shaped rack without rotating the arm, the cartridge gripped by the pair of chucking levers is integrated with the J-shaped rack, and the insertion / removal opening of the housing and the inside of the housing. While the cartridge is being moved, the shutter lever is used to open and close the shutter while the cartridge is being moved, while the J-shaped rack is linearly moved so that the planetary gears pass through the linear rack portion to form the circular arc shape. When meshed with the gear part, the planetary gear is revolved integrally with the arm along the gear to move the slide plate part according to the rotation of the arm, and is engaged with the slide plate part. In the disk player, the disk drive unit is configured to move up and down between a lowered position and a raised position.

Further, in the disc player of the first invention, the disc player is provided with means for retracting the shutter lever from the shutter while the cartridge is manually inserted to a predetermined position. .

Further, according to a second aspect of the present invention, a cartridge accommodating a disk is loaded between an insertion / removal opening of the housing and a mounting position in the housing, and the disk in the cartridge reaching the mounting position is loaded. A disc player driven by a disc drive unit provided in the housing,
The disc player is characterized in that a cartridge pressing member for pressing the upper surface of the cartridge which has reached the mounting position is biased by a single wire diameter spring formed in an L shape.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a disc player according to the present invention will be described below in detail in the order of items with reference to FIGS.

<Overall Configuration of Disc Player> FIG. 1 is a perspective view showing the overall configuration of a disc player according to the present invention. As shown in FIG. 1, a disc player 1 according to the present invention has an insertion / removal opening 11a ₁ in which a cartridge 3 accommodating a mini disc (MD) 2 is opened in front of a housing 11.
The cartridge 3 accommodating the mini disk 2 can be automatically mounted at a predetermined mounting position in the housing 11 by inserting the cartridge 3 from the. At this time, a shutter 4 is provided on the cartridge 3 so as to be opened and closed by being guided by a guide groove 3c ₁ formed on the right side surface 3c.

The disk player 1 supports a disk drive unit 40 rotatably in a box-like housing 11 as a base so as to be vertically movable, and has a J-shaped rack 12 (see FIGS. 2 and 2) to be described later. 3) A housing portion 10 provided movably, and a housing portion 1
A fixed plate portion 50 fixed above the fixed plate portion 50 and a slide plate portion 70 slidably supported by the housing 11 above the fixed plate portion 50 and engaged with the disk drive portion 40.

<Case 10> FIG. 2 is a perspective view showing a case of the disc player according to the present invention, FIG. 3 is a plan view showing the J-shaped rack shown in FIG. 2, and FIG. FIG. 3 is a plan view showing a drive source of the J-shaped rack shown in FIG. As shown in FIG. 2, in the casing 10 of the disc player 1, a casing 11 serving as a base is integrally formed in a box shape using a resin material. The housing 11 is surrounded by a front plate portion 11a, left and right side plate portions 11b and 11c, and a rear plate portion 11d in a rectangular shape, and a bottom plate portion 11e and an intermediate plate portion 11f are formed inside. Further, in front of the housing 11, the front plate portion 11
An insertion / removal opening 11a ₁ for inserting / removing the cartridge 3 by notching the upper part of a in a concave shape so as to be connected to the intermediate plate portion 11f is opened in a rectangular shape according to the size of the cartridge 3. Further, in front of the middle plate portion 11f, the high step portion 11f ₁ ,
11f ₂ is formed so as to be divided into right and left sides with the insertion / removal opening 11a ₁ interposed therebetween, and a high stepped portion 11f ₃ is formed at the same height as these high stepped portions 11f ₁ and 11f ₂ at the rear. And
The fixed plate portion 50 (FIGS. 1 and 6) is attached to the high step portions 11f _{1 to} 11f ₃ . Further, the bottom plate portion 11e and the middle plate portion 11f of the housing 11 are largely perforated from the front portion to the intermediate portion, and a disk drive unit described later in the largely perforated hole 11f ₄ (only 11f ₄ is shown). 40 (FIGS. 1 and 5) is rotatably supported so as to be vertically movable.

Further, on the middle plate portion 11f of the casing 11, J
The character rack 12 is provided so as to be linearly movable in the directions of the arrows A ₁ and A ₂ . That is, the guide groove 11b ₃ boss portion 12a formed on the left side of the J-shaped rack 12 is formed in the left side plate portion 11b of the housing 11, extending in a convex shape on the right side of the J-shaped rack 12 to the right Boss portion 12b of protruding convex portion 12b
₁ is a guide groove 11f formed in the middle plate portion 11f of the housing 11.
₅ , a J-shaped rack 12 is slidably fitted to the rail _5, and is linearly movable in the directions of arrows A ₁ and A ₂ .

As shown in FIGS. 2 and 3, the J-shaped rack 12 is integrally formed in a substantially plate shape by using a resin material, and the inside of the hole portion 12c is largely hollowed out. A linear rack portion 12d is formed on the right side, and an arcuate gear portion 12e is formed in front of the hole portion 12c so as to be connected to the linear rack portion 12d. Guide groove 1 along the gear part 12e
2f is formed. In addition, the recess 12g is formed in a concave shape in the middle portion on the right side of the guide groove 12f.
unlocking projection 12b ₂ is formed from the right side of f the convex portion 12b extending rightward, further, the switch cam holes along the left side plate portion 11b of the housing 11 on the left side of the hole 12c 1
2h is formed so as to penetrate therethrough.

A motor 13 as a drive source for the J-shaped rack 12 is provided in the rear of the housing 11 so as to be able to rotate in the forward and reverse directions, as shown in an enlarged view in FIG.
A belt 15 is stretched between the pulley 14 attached to the motor shaft and the pulley portion 16a of the pulley 16 with gears. Further, a deceleration gear train 17 to 19 composed of a plurality of gears meshing with the gear portion 16b of the pulley 16 with gears.
A gear 20 at the final stage is rotatably supported around a shaft 21 via. The gear 20 at the final stage faces the hole 12c of the J-shaped rack 12 from below from the inside. Here, in FIG. 4, the gear 17 and the gear 18 in the gear train 17 to 19 are vertically separated and engage with each other with a play amount between the gears 17 and 18. Of the planetary gear 23 and the gear 2 described below through the J-shaped rack 12 by the insertion force of the cartridge 3 at the start of insertion of the
Since the 0, the gear 19, and the gear 18 can be sequentially rotated by the amount of play, the J-shaped rack 12 holding the cartridge 3 can be manually moved to a predetermined position in the arrow A ₁ direction.

Referring back to FIGS. 2 and 3, the final stage gear 2
One end side of an arm 22 made of a resin material is supported above 0 in such a manner as to be rotatable around a shaft 21. A planetary gear 23 is rotatably supported around a shaft 24 on the back side of the arm 22. Here, the planetary gear 23 always meshes with the gear 20. Also, the planetary gear 23 is J
The axial distance between the shaft 21 and the shaft 24 is preset so that the linear rack portion 12d formed on the character rack 12 and the arcuate gear portion 12e can be successively meshed. On this occasion,
The tooth profile of the gear 20, the planetary gear 23, the linear rack portion 12d of the J-shaped rack 12 and the arcuate gear portion 12e are formed in the same module.

Further, on the other end side of the arm 22 and the back side,
The guide pin portion 22a is integrally formed so as to project downward, and the guide pin portion 22a is formed by the linear rack portion 1.
It is slidably fitted in a guide groove 12f formed along the 2d and the arcuate gear portion 12e. Here, the reason why the guide pin portion 22a is fitted in the guide groove 12f is that the J-shaped rack 12 of the planetary gear 23 does not move even if the J-shaped rack 12 moves linearly with some play. The guide pin portion 22a and the guide groove 12f may be provided if necessary, although the guide pin portion 22a and the guide groove 12f may be provided as necessary.

On the other end side of the arm 22 and on the upper surface side,
The lock pin portion 22b is integrally formed so as to project upward. A stopper piece 51a _{10 of} a fixed plate 51 (FIG. 6) and a lock piece 61a of a lock lever 61 (FIGS. 6 and 9), which will be described later, can be brought into and out of contact with the lock pin portion 22b, and a slide described later. The elliptical hole 71a _{3 of the} plate 71 (FIG. 10) is also engaged from above.

Further, on the left side surface side of the J-shaped rack 12, a chuck for gripping the cartridge 3 by engaging with a hole (not shown) formed in the left side surface 3b of the cartridge 3 (FIG. 1). A kink lever 25 is rotatably provided.

On the other hand, on the right side of the J-shaped rack 12,
Is connected to the tip of the convex portion 12b extending rightward. This link 26 extends to the front side, and the guide groove 1
1f ₅ along with the J-shaped rack 12 integrally with the arrows A ₁ , A
_It can be moved linearly in _two directions.

In front of the link 26, there is a cam wall 26a with which a cam piece 57c of a shutter lever 57 (FIGS. 6 and 8) provided on a fixed plate 51 (FIG. 6), which will be described later, is removably engaged. Are integrally formed. While the cam wall 26a of the link 26 and the cam piece 57c of the shutter lever 57 (FIGS. 6 and 8) manually insert the cartridge 3 (FIG. 1) to a predetermined position as described later, the shutter lever 57 is inserted. Is a means for retracting from the shutter 4 of the cartridge 3.

A hole (not shown) formed on the right side surface 3c of the cartridge 3 (FIG. 1) is located on the front side of the link 26.
A chucking lever 27 for engaging with and gripping the cartridge 3 is rotatably provided. Therefore, the pair of left and right chucking levers 25, 27 hold the cartridge 3 (chucking) while the J-shaped rack 12 is held.
The link 26 and the link 26 move in the directions of arrows A ₁ and A ₂ .

Further, on the bottom plate portion 11e behind the housing 11, a switch 28 which opens and closes according to the movement of the J-shaped rack 12 and a switch lever 2 which is engaged with the switch 28 are provided.
9 and are provided. In the switch lever 29, the switch 28 is engaged with the hole 29a on the rear side through the shaft 30,
The boss 29b on the front side through 0 faces the inside of the switch cam hole 12h formed on the left side surface of the J-shaped rack 12 from below. The switch 28 is composed of a combination of a plurality of switches, and has a function of turning on / off the motor 13 and a function of detecting the recording mode / reproducing mode of the disk drive unit 40 (FIGS. 1 and 5). I have it.

<Disc Drive Unit 40> FIG. 5 is a perspective view showing the disc drive unit of the disc player according to the present invention. As described above, the disk drive unit 40 shown in FIG. 5 is rotatably supported in the housing 11 (FIGS. 1 and 2) so as to be movable up and down, and in response to the movement of the J-shaped rack 12. A slide plate 71 that slides along the housing 11.
By engaging with (FIG. 10), the slide plate 71 can take a lowered position and a raised position.

In FIG. 5, a chassis 41 of the disk drive unit 40 is formed in a box shape using a sheet metal material, and a turntable 42 for mounting the mini disk 2 is rotatably provided on an upper surface 41a of the chassis 41. An optical pickup 43 for reproducing the mini disc 2 is provided so as to be movable in the radial direction of the mini disc 2.

On the rear surface 41d of the chassis 41, a head support plate 44 integrally attached to the back surface of the optical pickup 43 is projected upward, and the head support plate 4 is also provided.
4, the head arm 45 is provided with a spring 4 about the shaft 46.
It is rotatably supported while being biased upward by 7. Further, a magnetic head 49 for magnetically recording the mini disk 2 is attached to the tip of a leaf spring 48 attached to the head arm 45. Further, the head arm 45 has a convex portion 45 for up-down on the front side via the shaft 46.
a is formed so as to project upward, and a convex portion 45b for rotation restriction is formed so as to project upward on the rear side through the shaft 46. Then, the convex portion 45a protruding to the front side of the head arm 45 has a slide plate 71 (FIG. 10) described later.
The magnetic head 49 comes into contact with the upper surface of the mini disk 2 only when recording by moving away from the inside of the convex portion 71a ₄ so that the magnetic head 49 moves integrally with the optical pickup 43 in the radial direction of the mini disk 2. It has become.

The left and right side surfaces 41b, 4 of the chassis 41 are also
Support portions 41b ₁ and 41c ₁ are formed at the rear of 1c, and these support portions 41b ₁ and 41c ₁ are the housing 11
It is rotatably supported by shafts 11g, 11g in (Fig. 1, Fig. 2). In addition, the left and right side surfaces 41b, 4 of the chassis 41
In front of 1c, cam grooves (41b ₂ ), 41c ₂ connecting a low step portion, an inclined portion and a high step portion are formed,
When the pair of pins 72, 72 fixed to the left and right side plate portions 71b, 71c of the slide plate 71 (FIG. 10), which will be described later, are engaged with the cam grooves (41b ₂ ), 41c ₂ , the moving position of the slide plate 71 Correspondingly, when the cartridge 3 is inserted / removed, the chassis 41 reaches the lowered position, and when recording / reproducing the mini disk 2, the chassis 41 reaches the raised position.

<Fixing Plate Part 50> FIG. 6 is a perspective view showing a fixing plate part of the disc player according to the present invention, and FIG. 7 is shown in FIG.
8 is a perspective view for explaining the cartridge pressing member shown in FIG. 8, FIG. 8 is a perspective view for explaining the shutter lever shown in FIG. 6, and FIG. 9 is a perspective view for explaining the lock lever shown in FIG. is there. The fixed plate portion 50 shown in FIG. 6 has the high step portions 11f ₁ to 1f of the housing 11 (FIG. 2) as described above.
It is attached to 1f ₃ .

As shown in FIG. 6, the fixed plate 51 of the fixed plate portion 50 is formed by bending the periphery using a sheet metal material.
A cartridge pressing member 52 for pressing the upper surface 3a of the cartridge 3 (FIG. 1) is provided in front of the upper surface 51a of the fixing plate 51 while being urged downward by a single wire diameter spring 53 formed in an L shape. There is.

The cartridge pressing member 52 is formed in a substantially inverted T shape by using a sheet metal material, and the rear side of the cartridge pressing member 52 is a pair of cut and raised pieces 51a ₁ formed on the upper surface 51a of the fixing plate 51. 51a ₁ is rotatably pivotally supported, and the left and right ends of the front side of the cartridge pressing member 52 are holes 51a ₂ and 51a formed in the upper surface 51a of the fixed plate 51.
Facing from above in _3, so as to press the upper surface 3a of the cartridge 3 (FIG. 1).

At this time, a pair of pressing pieces 52a, 52a for pressing the upper surface 3a of the cartridge 3 (FIG. 1) is provided on the front left and right ends of the cartridge pressing member 52, as shown enlarged in FIG. There are formed in the reverse f-shaped, these pressing pieces 52a, 52a confronts from above into the hole _51a 2, 51a ₃ formed on the upper surface 51a of the fixed plate 51. Also,
On the front left side of the cartridge pressing member 52, a restricting piece 52b having a restricting groove 52b for restricting the rear end 53a side of one wire diameter spring 53 formed in an L shape is bent and formed. Further, the front end portion 53b of one L-shaped wire diameter spring 53 is formed at the front middle portion of the cartridge pressing member 52.
Cut-and-raised pieces 52c and 52c are formed by bending guide holes 52c ₁ and 52c ₁ for supporting the left and right ends of the side. Furthermore, in the hole 52d formed in the front center of the cartridge pressing member 52, restricting piece 51a ₄ formed in an inverted L-confronts the upper surface 51a of the fixed plate 51. Then, when one L-shaped wire diameter spring 53 is hooked between the fixing plate 51 and the cartridge pressing member 52, first, the front end 53b side of the wire diameter spring 53 is cut and raised into pieces 52c, 52c.
After penetration into the guide hole _{52c 1, 52c} 1, cut-and-raised pieces 52c, started restricting piece of the fixed plate 51 between 52c 5
1a ₄ and further, the rear end 53a side of the wire diameter spring 53 is pressed by the restricting groove 52b of the restricting piece 52b so that the front end of the rear end 53a is engaged with the stopper 51a ₅ of the fixed plate 51. The workability is good, and only one wire diameter spring 53 can be used as the number of biasing members.

Returning to FIG. 6, an eject lever 54 is rotatably supported on the outside of the left side surface 51b of the fixed plate 51, while being urged downward by a tension spring 56 via a shaft 55. . The eject lever 54 has a function of opening an exterior door (not shown) toward the inside when the cartridge 3 (FIG. 1) is ejected to the outside of the housing 11 (FIGS. 1 and 2). The exterior door is pushed by the cartridge 3 when the cartridge 3 is inserted and is rotated inward.

A shutter lever 57 is rotatably supported inside the right side surface 51c of the fixed plate 51 while being biased clockwise by a tension spring 59 via a shaft 58. Here, the shutter lever 57 is provided via the fixed plate 51, but the shutter lever 57 is not limited to this, and the shutter lever 57 is not limited to the insertion / removal opening 11a of the housing 11 (FIGS. 1 and 2).
_It is sufficient if the morphological structure is rotatably supported in the vicinity of ₁ .

Further, the shutter lever 57, as shown in an enlarged view in FIG. 8, has a projection 57a having a mountain shape for opening and closing the shutter 4 (FIG. 1) of the cartridge 3 on the front end side via a shaft 58 and a pulling. A spring retaining piece 57b for retaining the spring 59 is formed, and a cam piece 57c for determining the opening / closing timing of the shutter 4 is formed on the rear end side via the shaft 58. Here, the projection 57a of the shutter lever 57
Is entered from above the escape hole 51a in ₆ formed on the inside of the right side surface 51c on the upper surface 51a of the fixed plate 51, guide grooves formed in the right side surface 3c of the protrusion 57a is the cartridge 3 (FIG. 1) and to be able to open and close the shutter 4 of the cartridge 3 enters the 3c _1. The cam piece 57 c of the shutter lever 57 is provided on the upper surface 51 of the fixed plate 51.
Long escape groove 51 formed inside the right side surface 51c on a.
protrudes into a _7, determined closing timing of the shutter 4 by the cam wall 26a of the link 26 which enters from below the relief groove 51a in ₇ (FIG. 2, FIG. 3) is engaged with the cam piece 57c The opening / closing timing of the shutter 4 will be described later in the section of the operation of the disc player 1.

Returning to FIG. 6 again, the upper surface 51a of the fixed plate 51
The inside of the right side surface 51c above is formed with a large escape holes 51a _8, J-shaped rack 1 in this relief hole 51a within ₈
Two convex portions 12b (FIGS. 2 and 3) are movable.

[0034] The fixing plate 51 on the upper surface 51a at the and leaf spring 60 is attached to the substantially central portion, the inverse chevron portion 60a formed in the leaf spring 60 is large relief hole 51a ₈
It faces inside from above. The inverted chevron portion 60a of the leaf spring 60 enters the recess 12g (FIGS. 2 and 3) of the J-shaped rack 12 and presses the J-shaped rack 12 before the cartridge 3 is inserted, and the J-shaped rack 12 is pressed. By applying a light load to the cartridge 3, the cartridge 3 (FIG. 1) can be inserted with an appropriate force. Further, the inverted chevron portion 60a of the leaf spring 60 presses the upper surface 3a of the cartridge 3 after the cartridge 3 is inserted.

Further, an arcuate hole 51a ₉ is formed on the upper surface 51a of the fixed plate 51 rearward of the substantially central portion, and the lock pin portion 22b of the arm 22 is formed in the arcuate hole 51a ₉ .
(Figs. 2 and 3) are movable. Further, the stopper piece _{51a 10} to shown the rear end of the arcuate hole 51a ₉ are formed raised-away upwards.

Further, on the right side of the arcuate hole 51a ₉ of the fixed plate 51, a lock lever 61 is provided with a tension spring 63 via a shaft 62.
The lock lever 61 is rotatably supported while being biased in a clockwise direction by the lock lever 61 by the rotation range restricting portion 51a _{1 1} formed at the rear end on the upper surface 51a of the fixed plate 51.
The rotation range of is restricted.

As shown in the enlarged view of FIG. 9, the lock lever 61 has a lock piece 61a upward for locking the lock pin portion 22b (FIGS. 2 and 3) of the arm 22 on the distal end side through the shaft 62. Is formed integrally with the lock piece 61a, a recess 61b is formed in the rear of the lock piece 61a for receiving the lock pin portion 22b, and the lock pin portion 22b is provided on the rear end side via the shaft 62. Unlocking piece 6 cut and raised like a cam to unlock the lock
1c is integrally formed by bending upward, and a tension spring 63 is hooked on the end of the lock releasing piece 61c.

The role of the lock lever 61 is shown in FIG.
As described with reference to FIG. 3, when the planetary gear 23 meshes with the linear rack portion 12d of the J-shaped rack 12 and linearly moves the J-shaped rack 12 as the gear 20 rotates,
While it urged by spring 63 pulling in a direction to eliminate the backlash against the linear rack portion 12d of the planetary gear 23, and, between the locking piece 61a, a stopper piece _{51a 10} of the fixed plate 51 (FIG. 6) Lock pin portion 22b of the arm 22
Is locked to the housing 11 side so that the arm 22 does not rotate. At this time, the space between the lock piece 61a and the stopper piece 51a ₁₀ is equal to the lock pin portion 2
It is set approximately equal to the diameter of 2b.

Further, the lock release piece 6 of the lock lever 61
To 1c, J-shaped rack 12 (FIGS. 2, 3) is unlocking protrusion 12b ₂ which is protruded to the right of which is freely separable. At this time, the timing at which the unlocking protrusion 12b ₂ contacts the unlocking piece 61c corresponds to the position where the J-shaped rack 12 moves from the linear rack portion 12d to the arc gear portion 12e when the J-shaped rack 12 moves in the direction of the arrow A _1. ing.

Therefore, the lock releasing projection 12b _{2 of the} J-shaped rack 12 and the lock releasing piece 61 of the lock lever 61 are provided.
c is a lock releasing means for releasing the locking of the arm 22 by the lock lever 61.

<Slide Plate Part 70> FIG. 10 is a perspective view showing the slide plate part of the disc player according to the present invention. The slide plate portion 70 shown in FIG. 10 is slidably supported by the housing 11 (FIGS. 1 and 2) and engages with the disk drive portion 40 (FIGS. 1 and 5) as described above.

As shown in FIG. 10, the slide plate 71 of the slide plate portion 70 is made of sheet metal, and left and right side plate portions 71b and 71c are bent downward from the left and right ends of the top plate portion 71a. The recesses (11b ₁ , 11b ₂ ), (11c ₁ , 11c) formed by recessing the left and right side plate portions 11b, 11c of the housing 11 shown in FIG.
₂ ) so that the slide plate 71 can be mounted on the housing 11
It is slidable along and can be moved linearly in the directions of the arrows A ₁ and A ₂ .

An escape hole 71a ₁ is formed on the top plate portion 71a of the slide plate 71 on the left rear side in the drawing, and a switch cam piece 71a ₂ is formed in the escape hole 71a ₁ . Then, the escape holes 71a _1, the switch lever 29 (FIGS. 2, 3) described above are facing from the lower boss 29b penetrates the switch cam hole 12h of the J-shaped rack 12, the disk player described below As described in the section of the operation of No. 1, the boss 29b contacts the switch cam piece 71a ₂ when the slide plate 71 moves in the direction of the arrow A ₂ ,
The disc drive unit 40 (FIGS. 1 and 5) is adapted to detect the recording mode / reproduction mode.

[0044] Further, in the illustrated central rear on the top plate portion 71a of the slide plate 71 is elliptical hole 71a ₃ is provided through the moving direction substantially perpendicular to the direction of the slide plate 71. The lock pin portion 22b of the arm 22 (FIGS. 2 and 3) described above enters into the elliptical hole 71a ₃ from below. When the planetary gear 23 meshes with the arcuate gear portion 12e of the J-shaped rack 12 as the gear 20 rotates, the lock pin portion 22b rotates in response to the rotation of the arm 22, as will be described later. By moving in the elliptical hole 71a ₃ , the slide plate 71 can move linearly in the directions of the arrows A ₁ and A ₂ .

Further, the illustrated right front on the top plate portion 71a of the slide plate 71, the hole 71a ₅ escape the convex portion 71a ₄ which is punched in a convex shape are formed, these protrusions 71a ₄
And escape holes 71a ₅ are provided corresponding to the head arm 45 of the disk drive unit 40 (FIG. 5).

[0046] Further, being notched recess formed 71a ₆ to shown the rear right on the top plate portion 71a of the slide plate 71,
J-shaped rack 12 in the recess 71a in ₆ (Fig. 2, Fig. 3)
The convex portion 12b is movable.

The left and right side plate portions 71 of the slide plate 71
A pair of pins 72, 72 are fixed to face each other on the inner side below b, 71c.
Reference numeral 2 denotes left and right side plate portions 11b and 11c of the housing 11 shown in FIG.
Through the elliptical holes (11b ₃ ) and 11c ₃ formed in
Cam grooves (41b ₂ ), 4 formed on the left and right side surfaces 41b, 41c of the chassis 41 of the disk drive unit 40 shown in FIG.
1c ₂ is engaged.

<Operation of Disc Player> FIGS. 11 to 16 are plan views showing the operation of the disc player according to the present invention, and FIGS. 17 to 20 are side views showing the operation of the disc player according to the present invention. . In addition, in FIGS. 11 to 16, a fixing plate 51 fixed to the housing 11 (FIGS. 1 and 2) is used.
6 is omitted, the slide plate 71 is shown by a chain double-dashed line.

First, the states shown in FIGS. 11 and 17 are as follows.
The initial state of the disc player 1 is shown.

That is, as shown in FIG. 11, in the initial state of the disc player 1, the J-shaped rack 12 and the slide plate 71 are stopped at the positions shown. At this time, the switch cam hole 1 formed on the left side surface of the J-shaped rack 12
Since the boss 29b of the switch lever 29 that has entered 2h has reached the switch-off position at the upper end in the figure in the switch cam hole 12h, the switch 28 engaged with the switch lever 29 is in the off state. As a result, the motor 13 (FIGS. 2 and 4) that drives the J-shaped rack 12 is stopped, so the gear 20 that is driven by this motor 13 is also stopped. In the arm 22 that rotates about the shaft 21 of the gear 20, the lock pin portion 22 b formed on the upper surface of the arm 22 has a lock piece 61 a of the lock lever 61.
When, is locked between the stopper piece _{51a 10} of the fixed plate 51 (FIG. 6), with the arm 22 can not rotate,
The J-shaped rack 12 is stopped in a direction substantially perpendicular to the moving direction.

The planetary gear 23, which is axially supported by the arm 22 via the shaft 24, also meshes with the linear rack portion 12d of the J-shaped rack 12 while always meshing with the gear 20 to form the linear rack portion 12d. The J-shaped rack 12 is naturally stopped, since it is stopped at the end of. At this time, the lock lever 6
Since 1 is biased clockwise by the tension spring 63 about the shaft 62, the arm 22 is pushed counterclockwise in the figure by the biasing force of the tension spring 63 about the shaft 21. The planetary gear 23 pivotally supported on 22 is pressed against the linear rack portion 12d in a direction to eliminate backlash. Further, the lock pin portion 2 of the arm 22
2b is engaged in the elliptical hole 71a ₃ of the slide plate 71, but the arm 22 does not rotate, so the slide plate 7
1 is also stopped.

Further, the inverted chevron portion 60a of the leaf spring 60 attached to the substantially central portion of the fixed plate 51 (FIG. 6) has a concave portion 12g of the J-shaped rack 12 before the cartridge 3 is inserted.
(Figs. 2 and 3), press the J-shaped rack 12
By applying a light load to the J-shaped rack 12,
The cartridge 3 can be inserted with an appropriate insertion force when the insertion of the cartridge 3 is started.

Further, the chucking levers 25 and 27 rotatably provided on the left and right front sides of the J-shaped rack 12 are expanded outwardly with respect to each other and retracted to a position where they do not interfere with the insertion of the cartridge 3.

The shutter lever 57, which is rotatably provided on the front right inside of the fixed plate 51 (FIG. 6), also expands outward and is retracted to a position where it does not interfere with the insertion of the cartridge 3. At this time, although the shutter lever 57 is biased clockwise by the tension spring 59 via the shaft 58, the cam piece 57c of the shutter lever 57 abuts on the cam wall 26a of the link 26 connected to the J-shaped rack 12. Therefore, the shutter lever 57 cannot rotate clockwise,
As a result, the mountain-shaped projection 57a formed at the tip of the shutter lever 57 is retracted to a position where it cannot be engaged with the shutter 4 of the cartridge 3.

Further, as shown in FIG. 17, in the initial state of the disc player 1, the disc drive unit 40 rotatably supported in the housing 11 (FIGS. 1 and 2) is in the lowered position as shown. Has arrived.

That is, the left and right side plate portions (71
b), a pair of pins (72) fixed to 71c, 72, left and right side surfaces (41b) of the chassis 41 which is the base of the disk drive unit 40, and a cam groove (41 formed in front of 41c.
b _2), since engaged with the higher stepped portion of 41c _2, chassis 41 is led to the lowered position by rotating clockwise in the drawing. Therefore, the turntable 4 provided on the chassis 41
2 is retracted to a position where it does not interfere with the insertion of the cartridge 3.

The head arm 45 rotatably provided at the rear of the chassis 41 is biased upward by the spring 47, and the convex portion 45a of the head arm 45 enters the convex portion 71a ₄ of the slide plate 71. It is rotating upward. Therefore, the magnetic head 49 attached to the head arm 45 via the leaf spring 48 is retracted to a position where it does not interfere with the insertion of the cartridge 3. Furthermore, since the convex portion 45b of the head arm 45 is restricting the rotation of the downward contact with the end of the convex portion 71a ₄ of the slide plate 71, that the magnetic head 49 by impact or the like is brought into contact with the cartridge 3 To prevent.

Next, the state shown in FIG. 12 shows the insertion start state of the cartridge 3.

[0059] That is, as shown in FIG. 12, the housing 11 (FIG. 1, FIG. 2) when inserted manually cartridge 3 from the insertion slot 11a ₁ which is open to the front of turning on the left and right front of the J-shaped rack 12 Chucking lever 25 freely provided,
Since the right and left side surfaces 3b and 3c of the cartridge 3 are immediately gripped by 27, the J-shaped rack 12 is integrated with the cartridge 3.
The link 26 connected to the J-shaped rack 12 is movable in the direction of arrow A ₁ .

When the cartridge 3 is inserted, the pressing pieces 52a, 52a of the cartridge pressing member 52 rotatably supported by the fixed plate 51 (FIG. 6) are formed in an L shape.
The upper surface 3a of the cartridge 3 is pressed while being urged downward by the wire diameter spring 53 of the book. The pressing pieces 52a, 52a of the cartridge pressing member 52 move along the arrow A ₁ direction of the cartridge 3 and follow the upper surface 3a of the cartridge 3.

Further, the J-shaped rack 12 and the link 26 are integrally formed with the cartridge 3 at a predetermined position (about 3 to 5 m) in the direction of the arrow A ₁ by the insertion force when pushing the cartridge 3.
m)). At this time, the electric power is not being supplied to the motor 13 (FIGS. 2 and 4) until the J-shaped rack 12 and the link 26 are moved to the above-mentioned predetermined positions, and the above-mentioned operation is performed with reference to FIG. As described above, in the gear trains 17 to 19 for deceleration, the gear 17 and the gear 18 are vertically separated and engaged with each other with a play amount between the gears 17 and 18, and due to the insertion force of the cartridge 3. J-shaped rack 1
A planetary gear 2 meshed with a linear rack portion 12d through
3, the gear 20, the gear 19, and the gear 18 are sequentially rotated by the play amount, so that the J-shaped rack 12 and the link 26 can be manually moved to the predetermined position integrally with the cartridge 3.

When the J-shaped rack 12 starts to move in the direction of arrow A ₁ , the inverted chevron portion 60a of the leaf spring 60 attached to the substantially central portion of the fixed plate 51 (FIG. 6) forms the concave portion of the J-shaped rack 12. Depart from 12g and run along the J-shaped rack 12.

The shutter lever 57 is operated until the cartridge 3 is manually moved to the predetermined position.
Since the cam piece 57c of the above is in contact with the cam wall 26a of the link 26, the shutter lever 57 cannot rotate clockwise,
As a result, the mountain-shaped projection 57a formed at the tip of the shutter lever 57 is retracted to a position where it cannot be engaged with the shutter 4 of the cartridge 3. Therefore, the cartridge 3 can be inserted smoothly.

Further, when the J-shaped rack 12 and the link 26 are moved integrally with the cartridge 3 in the direction of the arrow A ₁ to the predetermined position by the insertion force of the cartridge 3, the boss 29b of the switch lever 29 is formed on the J-shaped rack 12. The switch 28 is turned on in the switch cam hole 12h, so that the switch 28 is turned on and electric power is supplied to the motor 13 (FIGS. 2 and 4). The rack 12 and the link 26 automatically start moving in the direction of the arrow A ₁ .

Next, the state shown in FIG. 13 shows a state in which the shutter 4 is opened while the cartridge 3 is being conveyed.

That is, as shown in FIG.
When the gear 20 is rotated clockwise about the shaft 21 by starting (FIGS. 2 and 4), the planetary gear 2 meshed with the gear 20
3 rotates counterclockwise about axis 24. When the planetary gear 23 rotates counterclockwise about the shaft 24,
Due to the meshing of the planetary gear 23 and the linear rack portion 12d, J
The character rack 12 is guided by the housing 11 (FIGS. 1 and 2) and linearly moves in the direction of the arrow A ₁ . Here, when the planetary gear 23 meshes with the linear rack portion 12d of the J-shaped rack 12, the lock pin portion 22b of the arm 22 and the lock plate 61a of the lock lever 61 and the fixed plate 51 (as in the initial state). Since it is locked with the stopper piece 51a ₁₀ of FIG. 6), the rotation of the arm 22 is restricted. In addition, the planetary gear 23 axially supported by the arm 22 by the urging force of the tension spring 63 of the lock lever 61 is provided in the linear rack portion 12
Since the planetary gear 23 is pressed against d in the direction to eliminate the backlash, the planetary gear 23 does not come off the linear rack portion 12d or the teeth do not fly in the linear rack portion 12d. Again, since the arm 22 does not rotate, the slide plate 71 is stopped. This state is maintained from FIG. 11 to immediately before FIG. 14 described later.

When the J-shaped rack 12 and the link 26 automatically start moving in the direction of the arrow A ₁ together with the cartridge 3, the cam piece 57c of the shutter lever 57 begins to separate from the cam wall 26a of the link 26. The shutter lever 57 is rotated clockwise by the urging force of the tension spring 59 via the shaft 58, and the mountain-shaped projection 57a formed at the tip of the shutter lever 57 is formed in the guide groove 3c formed on the right side surface 3c of the cartridge 3. ₁ (Fig. 1) to enter shutter 4
Begin to engage with. Thereafter, when the J-shaped rack 12 and the link 26 are further moved together with the cartridge 3 in the arrow A ₁ direction, the shutter 4 of the cartridge 3 is opened by the shutter lever 57 as shown in FIG.

Next, in the state shown in FIG. 14, the planetary gear 2
3 shows a state in which the cartridge 3 is meshed with the arcuate gear portion 12e via the linear rack portion 12d and the conveyance of the cartridge 3 is completed.

That is, when the J-shaped rack 12 and the link 26 are moved together with the cartridge 3 further in the direction of the arrow A ₁ , if the planetary gear 23 continues to rotate counterclockwise, J
By the linear movement of the character rack 12 in the arrow A ₁ direction, the planetary gear 23 meshes with the arc gear portion 12e via the linear rack portion 12d. Here, by the linear movement of the J-shaped rack 12, the lock releasing projection 12b ₂ formed to project to the right of the J-shaped rack 12 contacts the cam-like lock releasing piece 61c of the lock lever 61. Along with this, the lock lever 61 rotates counterclockwise in the drawing around the shaft 62 against the biasing force of the tension spring 63, so that the lock piece 61 a of the lock lever 61 moves from the lock pin portion 22 b of the arm 22. The arm 22 is released, and the lock of the arm 22 is released so that the arm 22 can rotate. Here, the arm 22
Starts rotating slightly, and the lock pin portion 22 of the arm 22
b although away from the stopper piece _{51a 10} of the fixed plate 51 (FIG. 6), the operation of the rotation of the arm 22 will be described in detail in the following Figure 15. Furthermore, at this stage, the arm 22 does not rotate so much, so that the slide plate 71 has hardly moved.
Thereafter, the lock releasing projection 12b ₂ of J-shaped rack 12 in unlocking piece 61c of the locking lever 61 will remain in contact with the lock lever 61 is kept in a state of releasing the engagement of the arm 22 There is.

Further, the planetary gear 23 is the linear rack portion 12
If the J-shaped rack 12 is meshed with the arcuate gear portion 12e via d, the linear movement of the J-shaped rack 12 in the direction of the arrow A ₁ is completed, and the conveyance of the cartridge 3 is also completed accordingly. 1, a predetermined mounting position in FIG. 2) is reached. The front side of the upper surface 3a of the cartridge 3 is pressed by the pressing pieces 52a, 52a of the cartridge pressing member 52 by the single wire diameter spring 53, and the upper surface 3a of the cartridge 3 is pressed.
The rear side of is pressed by the inverted chevron portion 60a of the leaf spring 60 attached to the fixed plate 51 (FIG. 6).

Further, in the operation of FIGS. 12 to 14,
FIG. 18 shows a state in which the cartridge 3 is conveyed by the J-shaped rack 12 in the direction of arrow A ₁ . At this stage, since the slide plate 71 does not move as described above, the disk drive unit 40 and the magnetic head 49 attached to the head arm 45 via the plate spring 48 are inserted into the cartridge 3 as in the initial state. And it is retracted to a position where it does not interfere with transportation.

Next, the state shown in FIG.
Rotation of the planetary gear 23 is allowed and the planetary gear 23 has an arcuate gear portion 12e.
The disk drive unit 40 is in the reproducible state from the lowered position to the raised position by engaging with.

That is, as shown in FIG. 15, the arm 22 is unlocked by the lock lever 61, so that the arm 22 is allowed to rotate. Here, the planetary gear 23 axially supported by the arm 22 rotates in the counterclockwise direction by the clockwise rotation of the gear 20 and rotates in the arcuate gear portion 1.
It meshes with 2e and revolves along the gear 20 around the shaft 21 integrally with the arm 22. Thus, since the arm 22 is pivoted in the clockwise direction about the shaft 21, the lock pin portion 22b of the arm 22 engaged in the oval hole 71a ₃ of the slide plate 71 within the oval Anaana 71a ₃ Since it moves from the right side to the left side, the slide plate 71 is
Guided by (FIGS. 1 and 2), the linear movement is made in the direction of arrow A ₂ . At this time, when the slide plate 71 moves in the arrow A ₂ direction, the boss 29b of the switch lever 29 moves to the slide plate 71.
Since contact of the high cam surface of the cam piece 71a ₂ switch, it has detected that the disk drive unit 40 (FIG. 1, FIG. 5) is the reproduction mode state.

Then, as shown in FIG. 19, when the slide plate 71 linearly moves in the direction of arrow A ₂ , the slide plate 71 is moved.
A pair of pins (72) and 72 fixed to the left and right side plate portions (71b) and 71c of the disk drive unit 40, the cam grooves (41b ₂ ), 41c ₂ formed in front of the left and right side surfaces (41b) and 41c of the chassis 41 of the disk drive unit 40 Since it engages with the lower stepped portion of the chassis 41, the chassis 41 rotates counterclockwise in the drawing to reach the up and down position. Therefore, the turntable 4 provided on the chassis 41
2 enters the cartridge 3 and the mini disk 2
(Fig. 1) is rotatably supported. After that, the optical disc 43 is inserted into the mini disk 2 stored in the cartridge 3.
(Fig. 5).

At this time, although the slide plate 71 moves in the direction of arrow A ₂ , the convex portion 45a of the head arm 45 has entered the convex portion 71a ₄ of the slide plate 71, so the head arm 45 is still upward. It is rotating.

Next, the state shown in FIG.
Shows the recordable state of the disk drive unit 40 when further rotated.

That is, as shown in FIG. 16, when a record button (not shown) is operated, the planetary gear 23 and the arc gear 1
When the arm 22 further rotates clockwise about the shaft 21 while continuing to mesh with 2e, the lock pin portion 22b of the arm 22 further moves from the right to the left in the elliptical hole 71a ₃ of the slide plate 71. Since the slide plate 71 is
Guided by (FIG. 1, FIG. 2), the linear movement further proceeds in the direction of arrow A ₂ . At this time, when the slide plate 71 further moves in the direction of the arrow A ₂ , the boss 29b of the switch lever 29 comes into contact with the inclined cam surface of the switch cam piece 71a ₂ of the slide plate 71, so that the disk drive unit 40 (FIG. 1, FIG. 5) is in the recording mode.

Then, as shown in FIG. 20, when the slide plate 71 is further linearly moved in the direction of the arrow A ₂ , the convex portion 45a of the head arm 45 is removed from the convex portion 71a ₄ of the slide plate 71, so that the head arm 45 is removed. Since 45 rotates downward against the urging force of the spring 47, the magnetic head 49 attached to the head arm 45 via the leaf spring 48 causes the mini disk 2 stored in the cartridge 3 by the urging force of the leaf spring 48. (Fig. 1). As a result, the magnetic disk 49 allows the mini disk 2 to be magnetically recordable.

After that, when the slide plate 71 and the J-shaped rack 12 are returned to the initial positions and the cartridge 3 is taken out, the detailed description is omitted, but by the operation reverse to the above,
It suffices to reverse the rotations of the motor 13 and the gear 20. At this time, the lock lever 61 moves the arm 2 while the planetary gear 23 moves from the arc gear 12e to the linear rack 12d.
Relock # 2.

[0080]

In the disk player according to the present invention described in detail above, according to claim 1, in particular, a J-shaped rack provided linearly movably in the housing, a gear connected to one drive source, The planetary gear, which is rotatably supported by an arm that rotates around the axis of the gear, is constantly meshed with the gear, and is also meshed with the linear rack portion and the arc gear portion of the J-shaped rack in order to make the planetary gear linear. When the cartridge is meshed with the rack, the cartridge is moved linearly between the insertion / removal opening of the housing and the mounting position in the housing integrally with the J-shaped rack without rotating the arm. When the planetary gear meshes with the arcuate gear through the linear rack by the linear movement of the J-shaped rack, the planetary gear revolves along the gear integrally with the arm, and the slide plate is moved according to the rotation of the arm. Move along the housing, First, since the disc drive unit engaged with the slide plate is moved up and down between the lowered position and the raised position, a series of operations such as cartridge cartridge, opening / closing of the shutter of the cartridge, and vertical movement of the disc drive unit are performed. The operation can be performed reliably and smoothly, and
There are advantages such as a simple structure of the constituent members that perform these operations.

Further, according to the second aspect, since the shutter lever is retracted from the shutter while the cartridge is manually inserted to the predetermined position, the cartridge can be smoothly inserted.

Further, according to the third aspect, since the cartridge pressing member for pressing the upper surface of the cartridge which has reached the mounting position is urged by the one wire diameter spring formed in the L shape, the number of parts of the urging member is increased. And the work of attaching the cartridge pressing member can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an overall configuration of a disc player according to the present invention.

FIG. 2 is a perspective view showing a casing of the disc player according to the present invention.

3 is a plan view showing the J-shaped rack shown in FIG. 2. FIG.

FIG. 4 is a plan view showing a drive source of the J-shaped rack shown in FIG.

FIG. 5 is a perspective view showing a disc drive unit of the disc player according to the present invention.

FIG. 6 is a perspective view showing a fixing plate portion of the disc player according to the present invention.

FIG. 7 is a perspective view for explaining the cartridge pressing member shown in FIG.

FIG. 8 is a perspective view for explaining the shutter lever shown in FIG.

9 is a perspective view for explaining the lock lever shown in FIG.

FIG. 10 is a perspective view showing a slide plate portion of the disc player according to the present invention.

FIG. 11 is a plan view showing the operation of the disc player according to the present invention.

FIG. 12 is a plan view showing the operation of the disc player according to the present invention.

FIG. 13 is a plan view showing the operation of the disc player according to the present invention.

FIG. 14 is a plan view showing the operation of the disc player according to the present invention.

FIG. 15 is a plan view showing the operation of the disc player according to the present invention.

FIG. 16 is a plan view showing the operation of the disc player according to the present invention.

FIG. 17 is a side view showing the operation of the disc player according to the present invention.

FIG. 18 is a side view showing the operation of the disc player according to the present invention.

FIG. 19 is a side view showing the operation of the disc player according to the present invention.

FIG. 20 is a side view showing the operation of the disc player according to the present invention.

[Explanation of symbols]

1 ... Disc player, 2 ... Mini disc (MD), 3
... cartridge, 4 ... shutter, 10 ... housing part, 11 ...
Case, 11a ₁ ... Insertion / extraction opening, 12 ... J-shaped rack, 12d
... linear rack portion, 12e ... arc gear portion, 13 ... drive source (motor), 20 ... gear, 21 ... shaft, 22 ... arm,
23 ... Planetary gear, 25, 27 ... A pair of chucking levers, 26 ... Link, 26a ... Cam wall, 40 ... Disk drive part, 41 ... Chassis, 42 ... Turntable, 43 ...
Optical pickup, 49 ... Magnetic head, 50 ... Fixed plate part,
51 ... Fixing plate, 52 ... Cartridge pressing member, 53 ... 1
Book wire spring, 57 ... Shutter lever, 57a ... Protrusion,
57c ... cam piece, 70 ... slide plate portion, 71 ... slide plate.

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G11B 17/04 411 G11B 25/04 101

Claims (3)

(57) [Claims] 1. A cartridge having an openable and closable shutter in which a disk is housed and which is loaded between an insertion / removal opening of a housing and a mounting position in the housing and has reached the mounting position. A disk player which drives the disk by a disk drive unit provided in the housing, the disk player being movably supported in the housing and retracted to a lowered position when the cartridge is inserted and removed. A disk drive unit that moves to a raised position when driven, a J-shaped rack that is linearly movably provided in the housing and that is connected to the linear rack unit to form an arcuate gear unit; A gear that is provided and that is rotatable about an axis in connection with a drive source, an arm that is rotatably supported about the shaft of the gear, and an axis that is rotatably supported by the arm A planetary gear that meshes with the linear rack portion and the arcuate gear portion of the J-shaped rack while meshing with each other, and a planetary gear that engages with the disk drive unit and engages with the arm to rotate the arm. A slide plate portion that is guided and slid by the housing by movement, and is provided on the left and right of the J-shaped rack corresponding to the insertion / removal opening of the housing. When the cartridge is inserted, the cartridge is grasped and the J A pair of chucking levers that move integrally with the V-shaped rack, and a shutter lever that is rotatably provided in the vicinity of the insertion / removal opening of the housing and that engages with the shutter and opens / closes the shutter when the cartridge moves. And linearly moving only the J-shaped rack without rotating the arm when the planetary gear meshes with the linear rack portion as the gear rotates. As a result, the cartridge gripped by the pair of chucking levers is integrally loaded with the J-shaped rack between the insertion / removal opening of the housing and the mounting position in the housing, and the shutter is moved during the movement of the cartridge. While the lever opens and closes the shutter, when the planetary gear meshes with the arcuate gear portion through the linear rack portion due to the linear movement of the J-shaped rack, the planetary gear is integrated with the arm into the gear. Revolving along the same to move the slide plate portion in response to the rotation of the arm, and move the disc drive portion engaged with the slide plate portion up and down between a lowered position and a raised position. A disc player characterized by the above. 2. The disc player according to claim 1, further comprising means for retracting the shutter lever from the shutter while the cartridge is manually inserted to a predetermined position. 3. A cartridge containing a disk is loaded between an insertion / removal opening of a housing and a mounting position in the housing, and the disk in the cartridge reaching the mounting position is provided in the housing. A disk player driven by a disk drive unit, wherein a cartridge pressing member for pressing the upper surface of the cartridge that has reached a mounting position is urged by a single wire diameter spring formed in an L shape. Player.