JPH04286760A - Method for assembling disk player - Google Patents

Abstract

PURPOSE:To simply assemble a chuck arm and a disk tray on a chassis in a short time by eliminating the phase alignment of the chuck arm and the disk tray when they are assembled. CONSTITUTION:A disk tray 30 is inserted and supported between both sides 21 and 21 of a chuck arm 20. Then, the chuck arm 20 and a disk tray 30 are assembled on a chassis 10 while their positions are simultaneously determined by inserting and fitting the respective engaging pins 25, 25, 26 and 26 of both sides 21 and 21 of the chuck arm 20 into the respective lower positional grooves 42a and 47a of the respective pair of inclined cum grooves 42, 42, 47 and 47 of a pair of sliding cum levers 40 and 45 from the upper end of communicative vertical grooves 42b and 47b.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of assembling a chuck arm and a disc tray of a disc player such as an optical video disc player for playing video discs.

0002

[Prior Art] For example, a large-diameter video disc (LD)
Video disc players that play video discs are known. This video disc player has a turntable mounted on a chassis inside the player main body, on which a video disc pulled into the player main body by a disc tray is placed, and is rotatable by a spindle motor.
An optical pickup is provided on a guide shaft disposed along the radial direction of the video disc so as to be movable back and forth by a driving means such as a linear motor. This guide shaft is provided on a skew servo base that swings vertically with respect to the chassis, so that skew servo of the optical pickup is performed. The video disc placed on the turntable is released from the chuck by the chuck of the chuck arm, which is movable up and down by the reciprocation of the slide cam lever as a movable member.
The video disc is chucked by the chuck of the chuck arm when the chuck arm is lowered, and the video disc is played back by the optical pickup or the like.

The structure of the chuck arm and disc tray of the video disc player will be explained in detail with reference to a schematic perspective view shown in FIG. 19. Reference numeral 100 denotes a chassis disposed on the lower side of the player body. A pair of guides 110 erected on both left and right sides of this chassis 100,
At 110, a pair of slide cam levers 120, 120 as movable members are made to be able to reciprocate alternately in the front and rear directions via a phase plate 130. A chuck arm 140 is supported between the slide cam levers 120, 120 so as to be movable up and down. This chuck arm 140 is formed from a metal plate into a double-sided shape, and has a chuck at the center of its lower surface that chucks a video desk (none of which is shown) placed on a turntable when the chuck arm 140 descends. 141 is rotatably supported. Further, both sides 140a of the chuck arm 140
, 140a, a disc tray 150 for loading the video desk to the turntable is supported so as to be movable in the front and rear horizontal direction, and a pair of engagement plates are provided on the outer surfaces of both sides 140a, 140a. Pins 142, 142 are provided to protrude perpendicularly to the outer surface, respectively.

A rack 151 protruding from the inside of one side of the bottom of the disc tray 150 is engaged with a loading gear 152 which is rotated by a drive mechanism (not shown) provided on the chassis 100. A pair of rack parts 154, 154 formed on both sides of the bottom of the disc tray 150 are meshed with a pair of phase gears 153, 153 rotatably supported on the inner surfaces of both side parts 140a, 140a, respectively. As a result, the disc tray 150 is attached to the chuck arm 140.
It can be moved in and out horizontally. Also,
The disc tray 150 has mounting parts 150a and 150b on which large-diameter (30 cm diameter) and small-diameter (20 cm diameter) video discs can be mounted, respectively, and a rectangular shape for an optical pickup is formed in the center of each of the mounting parts 150a and 150b. An opening 150c is cut out.

[0005]The above pair of slide cam levers 1
20, 120 and the pair of guides 110, 110 are molded from synthetic resin.
10 each pair of vertical recesses 110a. Vertical longitudinal grooves 110b are formed inside each of the holes 110a. Further, each engagement pin portion 120a is integrally formed to protrude from the front side of the lower surface of the pair of slide cam levers 120, 120, respectively. Each engagement pin portion 120a is engaged with a hole 130a on both ends of the phase plate 130, which is rotatably supported by the chassis 100 via a support shaft 131. Furthermore, a pair of inclined cam grooves 120b, 120b are integrally molded at the front and rear of the inner surface of the one (left) slide cam lever 120, respectively, and are formed so as to gradually rise from the front side to the rear side. At the same time, a pair of inclined cam grooves 120b, 120b are integrally formed at the front and rear of the inner surface of the other slide cam lever 120, respectively, and are formed so as to gradually descend from the front side to the rear side. And the chuck arm 1
Each pair of engagement pins 1 on both sides 140a, 140a of 40
42, 142 pass through each pair of longitudinal grooves 110b, 110b of the pair of guides 110, 110, and pass through each pair of inclined cam grooves 120b, 120b of each slide cam lever 120.
are engaged with each other.

[0006]

However, in the assembly process of a conventional video disc player, when assembling the chuck arm 140 and the disc tray 150 between the pair of guides 110, 110 of the chassis 100, the loading gear 152 is The pair of rack parts 154, 154 formed on both sides of the bottom of the disc tray 150 are adjusted to the state when the disc tray 150 is pulled out in the horizontal direction, and The disc tray 150 is attached to both sides 140a, 14 of the chuck arm 140 in alignment with a pair of phase gears 153, 153 that protrude vertically from the front.
After inserting between the inner surfaces of the slide cam levers 120, 120, each pair of inclined cam grooves 120b, 120
Each vertical groove 120c, 120c communicates with the high position groove part b
From the upper end of the chuck arm 140, both sides 140a,
Each pair of engagement pins 14 protrude from the front and back of the outer surface of 140a.
2, 142 respectively, and the respective pairs of engagement pins 142, 142 are fitted into the respective pairs of inclined cam grooves 120b, 120.
By fitting them into the chuck arms 14
0 was in the raised state, and the disk tray 150 was assembled in a state in which it was pulled out in the horizontal direction. For this reason,
The loading gear 152 and the rack 151 of the disc tray 150, and the pair of rack parts 154, 154 of the disc tray 150 and the pair of phase gears 153, 153 of the both sides 140a, 140a of the chuck arm 140 are aligned. while disc tray 150
The disc tray 150 must be inserted between both side parts 140a, 140a of the chuck arm 140, and the assembly work is complicated and requires skill. There was a problem that took time. Furthermore, there is a risk that defects may occur due to misalignment of the loading gear 152, misalignment of each phase gear 153, etc.

[0007] Therefore, the present invention provides a disc that allows the chuck arm and the disc tray to be assembled at the same time, eliminates the need for phase (position) alignment of the two during assembly, and allows the disc to be assembled easily and accurately in a short time. A method for assembling a player is provided.

[0008]

[Means for Solving the Problems] A disc tray that can be horizontally taken in and out from an opening provided on the front side of a player body, and on which a disc is placed and loaded into the player body; A chuck arm is provided with a chuck for chucking the disk and is supported horizontally between the parts so that it can be taken in and taken out; a pair of movable members that move the chuck arm and the disc tray up and down together by engaging a pair of engaging portions on both sides of the chuck arm in the inclined guide grooves; In the method for assembling a disc player, the disc player is provided with a driving means for rotating the disc by a lever, and an optical pickup that is provided to be reciprocally movable with respect to the chassis and reads information on the disc. With the disc tray inserted and supported, each engaging part on both sides of the chuck arm is engaged from the upper end of the vertical groove communicating with the lower position groove part of each inclined guide groove of the pair of movable members, The chuck arm is fitted between the movable members.

[0009]

[Operation] With the disc tray inserted and supported between both sides of the chuck arm, the upper end of the vertical groove that communicates each engaging part on both sides of the chuck arm with the low position groove of each inclined guide groove of the pair of movable members. When the chuck arm and the disc tray are engaged with each other and fitted into the respective inclined guide grooves, the chuck arm and the disc tray are simultaneously lowered and positioned while being assembled. Therefore, when assembling the chuck arm and the disc tray, there is no need to align the two, making the assembly process simple and accurate in a short time.

0010

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. In FIG. 1, 1 is a video disc player. A substantially square plate-shaped chassis 10 is disposed on the lower side of the housing-shaped player main body 2 of the video disc player 1. On this chassis 10 is a video disk 5.
A turntable 12 on which is placed is rotatably provided by a spindle motor (driving means) 11. Also, a pair of brackets 13, 1 fixed on the chassis 10
A skew servo base 15 is supported so as to be able to swing vertically with respect to the chassis 10 with respect to the respective shafts 14, 14 as centers between the two. A guide shaft 16 is spanned over the rectangular notch 15a of the skew servo base 15, and its both ends are fixed respectively. An optical pickup 17 for reading information on the video disc 5 is mounted on the guide shaft 16 so as to be able to reciprocate along the radial direction of the video disc 5. In addition, the above skew servo base 15
A pin portion 15b protruding from one side is placed on cam surfaces 70e and 70f of a cam gear 70, which will be described later. and,
By rotating this cam gear 70, as shown in FIG.
The optical pickup 17 is swung vertically with respect to the chassis 10 with the optical pickup 4 as the center, so that the optical pickup 17 follows the curve of the surface of the video disc 5, and its skew angle can be controlled and adjusted. In addition, the above chassis 10
A linear motor 18 for reciprocating the optical pickup 17 along the guide shaft 16 of the skew servo base 15 is attached above the skew servo base 15 . The linear motor 18 and the optical pickup 17 are connected by a connecting plate 19.

Further, on both left and right sides of the chassis 10,
A pair of slide cam levers (movable members) 40, 45 that move the chuck arm 20 up and down are connected to a pair of guides 50,
It is made to be able to reciprocate alternately in the front and rear directions via the guides 50. This chuck arm 20 is formed from a metal plate into a square shape in front, and the video desk 5 placed on the turntable 12 is placed below a circular notch 20a in the center of the chuck arm 20 when the chuck arm 20 is lowered. A chuck 22 for chucking is rotatably supported. Further, a pair of phase gears 23, 23 are rotatably supported on the front side of each inner surface of both side parts 21, 21 of the chuck arm 20, and a pair of engagement pins 24 are provided on the rear side of each inner surface.
, 24 project perpendicularly to each inner surface. A disk tray 30 for loading the video desk 5 to the turntable 12 is inserted between both sides 21 and 21 of the chuck arm 20 through the phase gears 23 and the engagement pins 24, and the disk tray 30 is pulled out in the front and rear horizontal direction. It is freely supported. In addition, the chuck arm 2
A pair of engaging pins (engaging portions) 25, 25 and 26, 26 are provided at the front and rear of the outer surfaces of both side portions 21, 21 of 0, respectively, protruding perpendicularly to the respective outer surfaces.

The disk tray 30 is made of synthetic resin and is formed into a rectangular plate shape. Long lateral grooves 31, 31 are integrally formed in the center of both sides of the disc tray 30, and the pair of engagement pins 24, 24 of the chuck arm 20 are inserted into and engaged with each of the lateral grooves 31, 31. It has been done. Further, a pair of rack parts 32, 32 are integrally molded on both sides of the bottom surface of the disc tray 30, respectively.
The rack portions 32, 32 are meshed with a pair of phase gears 23, 23 of the chuck arm 20, respectively. Furthermore, as shown in FIGS. 1 and 2, a rectangular plate-shaped rack 33 with teeth protruding inward is fixed with adhesive or the like above the rack part 32 on one side (left side) of the disc tray 30. There is. An upper tooth 74b of a loading gear 74, which will be described later, meshes with this rack 33, and the disc tray 3
0 can be freely put in and taken out in the horizontal direction from an opening 3 provided on the front side of the player main body 2. In addition, the center of the disc tray 30 has a large diameter (30 cm in diameter) and a small diameter (30 cm in diameter).
Placing parts 34 and 35 are formed on which a video disc (diameter: 20 cm) (large diameter disc is indicated by reference numeral 5 in FIG. 1) can be placed, and a rectangular shape for an optical pickup is formed in the center of each of the mounting parts 34 and 35. A notch 36 is formed. Furthermore, a pair of tapered holes 37, 37 for positioning are formed in both rear corner portions of the disc tray 30, and an upper tooth of the loading gear 74 is formed in one (left side) corner portion of the front side. Round hole 38 exposing portion 74b
has been formed. It should be noted that on the chassis 10 facing the pair of tapered holes 37, 37 with the disc tray 30 pulled into the player main body 2 and lowered, there are:
A pair of positioning pins 39, 39 are provided protrudingly.

The pair of slide cam levers 40, 45
The pair of guides 50, 50 are formed of synthetic resin into a rectangular plate shape and a front L-shape, respectively. Vertical longitudinal grooves 51a are formed inside the pair of vertical recesses 51, 51 standing upright at the front and rear of each guide 50, and
Claw portions 51b, 51b are integrally formed on both sides of the upper portion of each vertical groove 51a. Further, each engagement pin portion 4 is provided at the center of the lower surface of the pair of slide cam levers 40, 45.
1 and 46 are integrally protruded. Each engaging pin portion 4
Reference numerals 1 and 46 denote holes 56 and 56 at both ends of the phase plate 55 rotatably supported by the chassis 10 via a support shaft 54.
are inserted and engaged respectively. Further, a pair of inclined cam grooves (inclined guide grooves) 42, 42 formed so as to gradually rise from the front side to the rear side are integrally formed at the front and rear of the inner surface of the one (left) slide cam lever 40, respectively. A pair of inclined cam grooves are formed so as to gradually descend from the front side to the rear side at the front and rear of the inner surface (the surface facing the inclined cam groove 42) of the other slide cam lever 45. (Inclination guide grooves) 47, 47 are each integrally molded. Each of these inclined cam grooves 42, 47
Vertical grooves 42b,
47b is the low position groove portion 42a of the inclined cam grooves 42, 47;
47a.

Furthermore, one of the slide cam levers 4
A rack portion 43 is integrally formed to protrude from the center lower part of the inner surface of the 0. A fan-shaped tooth portion 70b of a cam gear 70, which will be described later, of the drive mechanism 60 meshes with the rack portion 43. This drive mechanism 60 includes a motor 61 fixed to the lower surface side of the chassis 10 and having a rotating shaft 61a vertically protruding above the chassis 10, and a small diameter pulley 62 fixed to the upper part of the rotating shaft 61a of this motor 61. A large-diameter pulley 63 with a driving gear 64 integrally molded on the lower side and rotatably supported by the chassis 10 via a shaft 65, and a ring-like belt 66 stretched between each of the pulleys 62 and 63. Axis 6 on chassis 10
The first intermediate gear 6 is rotatably supported via the gear 7 and has a large-diameter tooth portion 68a on the lower part that meshes with the drive gear 64 of the large-diameter pulley 63, and has a small-diameter tooth portion 68b on the upper part.
8, is rotatably supported by the chassis 10 via a support shaft 69, and has a small diameter tooth portion 68 of the first intermediate gear 68 on the center side.
An annular tooth portion 70a that meshes with the rack portion 43 is integrally molded, while a fan-shaped tooth portion 70b that meshes with the rack portion 43 is integrally molded on a part of the lowermost part (bottom part), and a part of the upper part of the outer periphery. A cam gear (first gear) 70 is integrally formed with teeth 70d projecting in an arc shape, and a support shaft 71 is attached to the chassis 10.
The cam gear 70 is rotatably supported through the cam gear 70.
The second intermediate gear 7 has a small-diameter tooth portion 72a that meshes with the arc-shaped tooth portion 70d of the second intermediate gear 7, and has a large-diameter tooth portion 72b at the lower part.
2, is rotatably supported by the chassis 10 via a support shaft 73, has a lower toothed portion 74a that meshes with the large diameter toothed portion 72b of the second intermediate gear 72 on the lower part, and has a lower toothed portion 74a that meshes with the large diameter toothed portion 72b of the second intermediate gear 72 on the upper portion. The loading gear (second gear) 74 has an upper toothed portion 74b that meshes with the rack 33.

Each pulley 62, 63 and each gear 64,
70, 72, and 74 are each molded from synthetic resin. In addition, as shown in FIGS. 10 and 11, the cam gear 7
An inclined cam surface 70e and a flat cam surface 7 are provided on the outer periphery of the upper surface of 0.
0f is continuously integrally protruded, and
As shown at 11 and 12, the bottom of the cam gear 70 is integrally formed with a circumferential surface 70c so as to be continuous with the fan-shaped teeth 70b. Further, the cam gear 7 is disposed between the small diameter tooth portion 72a and the large diameter tooth portion 72b of the second intermediate gear 72.
A stopper portion 72c that comes into contact with and separates from the peripheral surface portion 70c of 0 is integrally molded to protrude.

Then, when the motor 61 of the drive mechanism 60 is rotated in the forward and reverse directions, the fan-shaped tooth portion 70b of the cam gear 70 engages with the rack 43 of one of the slide cam levers 40 via the drive gear 64 and the first intermediate gear 68. , Figure 15,1
As shown in FIG. 7, one slide cam lever 40 is configured to reciprocate in the front and back direction along one guide 50, and the other slide cam lever 45 is connected to the one slide cam lever through a phase plate 55. 40, they reciprocate in the front and rear directions alternately. When one of the slide cam levers 40 moves rearward, as shown in FIG.
The position is temporarily held by being engaged with a substantially dogleg-shaped leaf spring 48 fixed to.

According to the video disc player 1 of the above embodiment, for example, when playing a large-diameter video disc 5, the motor 61 of the drive mechanism 60 is first rotated counterclockwise from the rising chuck arm 20. Rotate it as shown in Figure 1.
As shown in 8, the arc-shaped tooth portion 70d of the cam gear 70 and the small diameter tooth portion 72a of the second intermediate gear 72 are engaged with each other and rotated. As a result, the loading gear 74 rotates counterclockwise, and the rack 33 of the disc tray 30 is engaged with the upper teeth 74b of the loading gear 74.
The disc tray 30 is moved forward through the opening 3 on the front surface of the player main body 2 and pulled out. and,
The video disc 5 is placed on the large-diameter mounting portion 34 of the disc tray 30 that has been pulled out.

Next, the motor 61 is rotated clockwise, and as shown in FIG. 14, the loading gear 74 is rotated clockwise to retract the disc tray 30 into the chuck arm 20 and completely retract it. When the motor 61 is further rotated clockwise from this state, the cam gear 70 is rotated clockwise, but the second intermediate gear 72
, the loading gear 74 does not rotate. Above cam gear 7
0 clockwise rotation, the fan-shaped tooth portion 70b of the cam gear 70 meshes with the rack portion 43 of one slide cam lever 40, and as shown in FIG. 15, the one slide cam lever 40 is moved rearward. . When this one slide cam lever 40 moves rearward, the other slide cam lever 45 moves forward via the phase plate 55. As a result, the chuck arm 20 and the disc tray 3
0 falls to complete loading. When the chuck arm 20 descends, the video disc 5 is placed on the turntable 12, chucked by the chuck 22, and played back by the optical pickup 17. During this regeneration, when the motor 61 is rotated clockwise or counterclockwise, the cam gear 70 is rotated clockwise or counterclockwise, as shown in FIG. Each cam surface 70e, 7 of this cam gear 70
By the pin portion 15b of the skew servo base 15 placed at 0f, the skew servo base 15 swings in the vertical direction of the chassis 10 around the pair of shafts 14, 14 to control and adjust the skew angle. The skew servo is easily performed by driving the single motor 61 for disk loading.

Furthermore, when the video disc 5 is taken out after playback, the motor 61 is rotated counterclockwise. As a result, as shown in FIG. 17, the cam gear 70 rotates counterclockwise, and the fan-shaped tooth portion 70b of the cam gear 70 meshes with the rack portion 43 of one of the slide cam levers 40. Move 40 forward. When this one slide cam lever 40 moves forward, the other slide cam lever 40 moves through the phase plate 55.
5 moves backwards. As a result, the chuck arm 20
and the disc tray 30 rises. As shown in FIG. 18, when the cam gear 70 is further rotated counterclockwise,
The arc-shaped tooth portion 70d of the cam gear 70 meshes with the small diameter tooth portion 72a of the second intermediate gear 72, and the loading gear 74 rotates counterclockwise. The disc tray 30 meshing with the upper teeth 74b of this loading gear 74
The disc tray 30 is moved forward through the rack 33 and pulled out from the opening 3 of the player body 2. Then, the above-mentioned disk tray 3 is pulled out.
The video disc 5 is taken out from the large-diameter mounting portion 34 of 0.

In this way, the driving mechanism 60 controls the loading and oscillating movements of the skew servo base 15, including the lifting and lowering of the chuck arm 20 and the lifting and lowering of the disk tray 30.
This can be done with one motor 61. As a result, the number of motors that were conventionally required for skew servo can be eliminated, reducing the number of motors required for the video disc player.
The overall weight and cost can be further reduced.

Furthermore, in the assembly process of the video disc player 1, the chuck arm 20 and the disc tray 30 are
When assembling the chuck arm 20 into the chassis 10, first insert the disk tray 30 between the both sides 21, 21 of the chuck arm 20, and then
The disc tray 3 is attached to the pair of engagement pins 24, 24 of 21.
The lateral grooves 31, 31 on both sides of 0 are inserted into engagement. Then, the pair of phase gears 23, 23 on both sides 21, 21 of the chuck arm 20 are engaged with the pair of rack parts 32, 32 on both sides of the bottom surface of the disc tray 30, so that the disc tray 30 is assembled as shown in FIG. 30 into the chuck arm 20, and align the front end of the chuck arm 20 with the front side of the disc tray 30.

Next, one (left) slide cam lever 40 is moved rearward along one guide 50 to align each vertical groove 42b of the slide cam lever 40 and the vertical groove of each recess 51 of one guide 50. Match 51a. As a result, the other slide cam lever 45 moves toward the phase plate 55.
The vertical grooves 47b of the slide cam lever 45 match the vertical grooves 51a of the recesses 51 of the other guide 50. In this state, each pair of engagement pins 25, 25, 26, 26 on both sides 21, 21 of the chuck arm 20 into which the disc tray 30 has been inserted are inserted into the respective pairs from the upper ends of the vertical grooves 42b, 47b. Together, each pair of inclined cam grooves 42 of each slide cam lever 40, 45
, 42, 47, 47, respectively. As a result, the chuck arm 20 and the disc tray 30 descend along each vertical groove 51a of the pair of guides 50, 50. At this time, a pair of tapered holes 37, 37 formed at the rear of the disc tray 30 fit into a pair of positioning pins 39, 39 of the chassis 10, and the disc tray 30 is positioned with respect to the chuck arm 20. At this time, the positions (phases) of the chuck arm 20 and the disc tray 30, and of each phase gear 23 of the chuck arm 20 and each rack part 32 of the disc tray 30 are simultaneously adjusted. Therefore, when assembling the chuck arm 20 and the disc tray 30, alignment between them is not necessary, and the assembly can be done easily in a short time. This further simplifies the overall assembly work of the video disc player 1 and further shortens the assembly work time, making it possible to provide a highly accurate video disc player 1 at low cost.

Although the above embodiment has been described with reference to a video disc player, the disc player is not limited to this, and can be applied to various disc players such as an audio CD player and a magneto-optical disc player capable of recording and reproducing. It is possible. Moreover, although the inclined cam groove formed in the slide cam lever is a concave groove, it is not limited to this, and may be a hole-shaped groove. Furthermore, the engaging portion that is engaged with the inclined cam groove of the slide cam lever is not limited to a pin, but may be a roller or the like.

[0024]

As described above, according to the method for assembling a disc player of the present invention, with the disc tray inserted and supported between both sides of the chuck arm, each engaging portion on both sides of the chuck arm can be assembled in pairs. The chuck arm and the disc tray are assembled to the chassis by engaging the upper end of the vertical groove communicating with the lower position groove of each of the inclined guide grooves of the movable member and fitting them into the respective inclined guide grooves. The tray is drawn between both sides of the chuck arm, and while the chuck arm is lowered between the pair of movable members, the chuck arm and the disc tray are simultaneously positioned and assembled. This eliminates the need to align the chuck arm and the disc tray when assembling them, making it possible to assemble the disc player easily and in a short time.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a disc player showing an embodiment of the present invention.

FIG. 2 is a perspective view of essential parts of the disc player.

FIG. 3 is an inner side view of one slide cam lever used in the disc player.

FIG. 4 is a sectional view taken along line A-A in FIG. 3;

FIG. 5 is an inner side view of the other slide cam lever used in the disc player.

FIG. 6 is a sectional view taken along line BB in FIG. 5;

FIG. 7 is a plan view of a guide that supports each of the slide cam levers.

FIG. 8 is a side view of a guide that supports each of the slide cam levers.

FIG. 9 is a front view of a guide that supports each of the slide cam levers.

FIG. 10 is a plan view of a cam gear used in the disc player.

FIG. 11 is a sectional view taken along line CC in FIG. 10.

FIG. 12 is a bottom view of the cam gear.

FIG. 13 is a sectional view of a second intermediate gear used in the disc player.

FIG. 14 is an explanatory diagram of the main parts of the drive mechanism when the disc tray of the disc player is retracted.

FIG. 15 is an explanatory diagram of main parts of the drive mechanism of the disc player when the chuck arm and disc tray are lowered.

FIG. 16 is an explanatory diagram of main parts of the drive mechanism of the disc player during skew servo.

FIG. 17 is an explanatory view of the main parts of the drive mechanism of the disc player when the chuck arm and disc tray are raised.

FIG. 18 is an explanatory diagram of the main parts of the drive mechanism when the disc tray of the disc player is pulled out.

FIG. 19 is a schematic perspective view of a chuck arm and a disc tray of a conventional disc player.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1... Disc player, 2... Player body, 3... Opening, 5... Disk, 10... Chassis, 11... Motor (driving means), 15... Skew servo base, 17... Optical pickup, 20... Chuck arm, 21... Side Part, 22...
Chuck, 25, 26... Engaging pin (engaging portion), 30... Disc tray, 40, 45... Slide cam lever (movable member), 42, 47... Inclined cam groove (inclined guide groove), 4
2a, 47a...low position groove portion, 42b, 47b...vertical groove.

Claims (1)

[Claims] Claim 1: A disc tray that can be horizontally inserted into and taken out from an opening provided on the front side of a player main body, and on which a disc is placed and loaded into the player main body; a chuck arm having a chuck for supporting the disc so that it can be taken in and taken out in the direction of the player, and for chucking the disc; and an inclined guide that is movable back and forth on the chassis within the player main body and that is formed diagonally on opposing surfaces. a pair of movable members that engage a pair of engaging portions on both sides of the chuck arm in the grooves to move the chuck arm and the disc tray up and down together; In the method for assembling a disc player, the disc tray is provided between both sides of the chuck arm. In the inserted and supported state, the engaging parts on both sides of the chuck arm are engaged from the upper ends of the vertical grooves communicating with the low position grooves of the respective inclined guide grooves of the pair of movable members, and the pair of movable members A method for assembling a disc player, characterized in that the chuck arm is fitted in between.