JPH08167210A - Disk loading mechanism - Google Patents

Abstract

PURPOSE: To prevent a disk arm from abutting on a loaded disk with simple constitution. CONSTITUTION: One pair of disk ejecting arms 12 and 14 are energized forward on the forward side from a 1st position. When they are in a position between the 1st position and a 2nd position during their backward movement, they are energized backward, whereas they are energized forward and are also restrained by a lock member 43 when they are in a position on the backward side from the 2nd position. Consequently, these disk ejecting arms 12 and 14 do not abut on the optical disk 201 loaded on a disk table 4, and when they are released from restraint by the lock member 43, this optical disk 201 is ejected forward.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading mechanism for mounting an optical disc on a disc player device.

[0002]

2. Description of the Related Art Conventionally, there has been proposed an optical disc in which an information signal is recorded and the information signal is read by an optical pickup device. This optical disc
The disk substrate is made of a synthetic resin material such as polycarbonate and has a disk shape, and a signal recording surface portion formed on one main surface portion of the disk substrate.
On the signal recording surface portion, a thin film made of a metal material such as aluminum is deposited as a reflective layer.

Such an optical disc is mounted on a disc player device having the above optical pickup device so that the information signal is read by the optical pickup device.

The disc player device has a rotation operation mechanism for holding and operating the optical disc in a state of facing the optical pickup device. That is, the rotation operation mechanism and the optical pickup device constitute a disc mounting portion on which the optical disc is mounted.

The disc player device has a disc loading mechanism for mounting the optical disc in the disc mounting portion. The disc loading mechanism conveys an optical disc inserted and operated from the outside of the disc player device into an outer casing of the disc player device and mounts it on the disc mounting portion.

As the above-mentioned disc loading mechanism,
A so-called slot-in system has been proposed. This slot-in type disc loading mechanism conveys an optical disc inserted and operated through a slot formed in the outer casing to the disc mounting portion in a direction along the main surface portion of the optical disc, and then to the disc mounting portion. It is configured to be attached.

This disk loading mechanism has a pair of rotating rollers for sandwiching the optical disk inserted through the slot from both main surface sides. These rotating rollers are rotated by a driving force from a driving force source such as a motor while holding the optical disc, and convey the optical disc. Then, the optical disc transported to the position facing the disc mounting portion is
The disc is moved in a direction perpendicular to the main surface of the optical disc, mounted on the disc mounting portion, and chucked.

When the optical disc mounted in the disc mounting portion is ejected from the disc player device, the optical disc is moved in a direction perpendicular to the main surface of the optical disc to be detached from the disc mounting portion. It is nipped by each rotating roller. Then, this optical disc is carried out to the outside of the outer casing through the slot by rotating each of the rotating rollers.

[0009]

By the way, in the disc player device having the above-mentioned disc loading mechanism, the ejecting motor serving as a driving force source for ejecting the optical disc and the ejecting motor. Since it is necessary to incorporate a power source for the motor, the size of the device is increased, the weight is increased, and the power consumption is increased.

In this disc player device, if the power for the ejecting motor is supplied from an external power source, the disc player device cannot be used where there is no external power source, such as outdoors.

Therefore, this disc loading mechanism is unsuitable as a mechanism applied to a so-called portable or outdoor disc player device.

Further, in this disc player device, in order to prevent the optical disc ejected by the disc loading mechanism from being picked up in the air, a brake mechanism for stopping the optical disc at an appropriate position is required. This brake mechanism complicates the device configuration of the disc player device.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and it is possible to simplify, downsize, and reduce the weight of the apparatus, suppress the increase in power consumption, and particularly to carry the apparatus. It is an object of the present invention to provide a suitable disc loading mechanism applied to a disc player device configured for outdoor and outdoor use.

[0014]

In order to solve the above-mentioned problems and achieve the above-mentioned object, a disk loading mechanism according to the present invention has a disk abutting member arranged on the rear side of a disk mounting portion. The disk contact member is supported by the disk contact member so as to be movable in the front-rear direction, and is moved in the direction in which the disk contact member moves rearward through the disk contact member by the optical disk moved from the front side toward the disk mounting portion. Disc ejecting member, a biasing means for moving and biasing the disc ejecting member, and a biasing means for switching the biasing direction of the disc ejecting member by the biasing means according to the moving direction and position of the disc contact member. A direction switching mechanism and a lock mechanism that locks the disc ejecting member so that the disc ejecting member can be released, and the disc ejecting member includes the disc contacting member. When the disc contact member is positioned forward of the reverse position of 1, the disc contact member is urged in a direction to move the disc contact member forward, and the disc contact member is moved rearward. When the disc contact member is located between the first reversal position and the second reversal position, the disc contact member is urged in a direction to move the disc contact member rearward to move the disc contact member When the disk contact member is located rearward of the second reversal position, the disk contact member is biased in the direction of moving it forward and is also locked by the lock mechanism.

Further, in the disk loading mechanism of the present invention, the urging means includes an ejecting urging member for urging the disk ejecting member in a forward direction of the disk abutting member, and the disk abutting member. Is a urging force for urging the disc ejecting member in a direction toward the rear and which is stronger than the urging force of the ejecting urging member. The switching mechanism is provided for the evacuation when the disc contact member is moving rearward and the position of the disc contact member is between the first reversal position and the second reversal position. The urging force of the urging member is transmitted to the disc discharging member,
When the disc abutting member is located on the front side of the first inverted position, the biasing force for moving the disc abutting member forward with respect to the disc ejecting member is the ejecting biasing member. When the disc abutting member is moving rearward and the disc abutting member is located between the first inversion position and the second inversion position. The urging force in the direction of moving the disc contact member to the disc discharge member rearward when
The retracting biasing member is used to move the disc abutting member forward with respect to the disc ejecting member when the disc abutting member is located rearward of the second inverted position. The urging in the direction is performed by the discharging urging member.

Furthermore, according to the present invention, in each of the above-mentioned disc loading mechanisms, the lock mechanism releases the engagement of the disc ejecting member with the disc ejecting member being provided with the biasing means via the disc contact member. When the optical disc is ejected to the front by the force,
A brake member is provided which is in sliding contact with the peripheral portion of the optical disc to suppress the moving speed of the optical disc.

[0017]

In the disc loading mechanism according to the present invention, the disc abutting member is provided on the rear side of the disc mounting portion and is supported so as to be movable in the front-rear direction. The disc ejecting member, which is operated to move backward by the optical disc moving member toward the rearward direction through the disc abutting member, is provided with a biasing means via a biasing direction switching mechanism. As a result, when the disc contact member is located forward of the first inverted position, the disc contact member is urged in a direction to move the disc contact member forward,
When the disc contact member is moved rearward and the disc contact member is located between the first reversal position and the second reversal position, the disc contact member Is urged in the direction to move the member rearward,
When the disc contact member is located rearward of the second inversion position, the disc contact member is urged in the direction of moving the disc contact member forward and locked by the lock mechanism. The optical disc is ejected to the front side when it does not come into contact with the optical disc mounted in the disc mounting portion and when the locking by the lock mechanism is released.

In the disc loading mechanism, the urging means includes a discharge urging member for urging the disc ejecting member in a direction in which the disc abutting member is directed forward and the disc abutting member is directed rearward. And a retracting biasing member that exerts a biasing force that biases the disc ejecting member in a direction and is stronger than the biasing force of the ejecting biasing member. When the disc contact member is moving rearward and the position of the disc contact member is between the first reversal position and the second reversal position, the retracting biasing member Biasing force is transmitted to the disc ejecting member, and the disc abutting member is moved forward with respect to the disc ejecting member when the disc abutting member is located on the front side of the first inverted position. It The ejecting biasing member is used to urge the disc contacting member to move in the backward direction when the disc contacting member is moving rearward. The urging member for urging the disc abutting member in the direction of moving the disc abutting member to the rear when it is located between the second reversing position and the second reversing position is performed by the retracting urging member. The urging force in the direction of moving the disc contact member forward with respect to the disc discharge member when the disc contact member is located rearward of the second inversion position is determined by the discharge urging member. If it is decided to be done, the disc ejecting unit ejects the optical disc to the front side when the locking by the lock mechanism is released without making contact with the optical disc mounted in the disc mounting unit. The operation can be reliably performed.

Furthermore, in each of the above-mentioned disc loading mechanisms, the lock mechanism releases the engagement of the disc ejecting member, and the disc ejecting member is urged by the urging means via the disc contact member to cause the optical disc to be ejected. When a brake member is provided that suppresses the moving speed of the optical disc by slidingly contacting the peripheral edge of the optical disc when the disc is ejected to the front side, the optical disc moves when it is ejected by the disc ejecting member. The speed is moderately suppressed and it is not struck by air.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings.

In this example, the disc loading mechanism according to the present invention is applied to a disc player device for reproducing an information signal recorded on an optical disc 201 as shown in FIG. It will be described in the following order.

[1] Configuration of optical disc (FIGS. 1 and 4) [2] Configuration of disc player device (2-1) Disc mounting portion (FIGS. 1 and 4) (2-2) Configuration of disc pulling arm ( 1, 2, 4, and 16) (2-3) Structure of chucking member (FIGS. 1, 2, 4)
(Fig. 1 to Fig. 16) (2-4) Configuration of disc ejection arm (Fig. 1, Fig. 3, Fig. 4 to Fig. 16) [3] Operation of disc player device (Fig. 4 to Fig. 16) (3-1) Initial state ( FIG. 4) (3-2) Optical disc insertion operation (FIGS. 4 to 10) (3-3) Optical disc chucking (FIGS. 9 and 1)
0) (3-4) Ejecting operation of optical disc (FIGS. 11 to 16) [1] Configuration of optical disc (FIGS. 1 and 4) The optical disc 201 has a diameter of, for example, about 120 mm made of a synthetic resin material such as polycarbonate. It has a disk substrate formed in a disk shape. A chucking hole 202 having a diameter of, for example, about 15 mm is formed in the center of the disk substrate.

One main surface portion of the disk substrate serves as a signal recording surface, and when this disk substrate is formed by injection molding means, fine irregularities, that is, pits are formed. The pits correspond to the digitalized information signals recorded on the optical disc.

A reflective layer made of a metal material such as aluminum is deposited on the signal recording surface.

In this optical disc, an optical pickup device is used to irradiate from the side of the signal reading surface, which is the other main surface portion, the light flux which is transmitted through the disc substrate and focused on the signal recording surface, and The information signal can be read by detecting the reflected light flux of the light flux from the signal recording surface.

[2] Configuration of Disc Player Device (2-1) Disc Mounting Unit (FIGS. 1 and 4) The disc player device has a casing body whose upper side is open, as shown in FIG. Have one. The case body 1 is closed on the open upper side by a cover body 8 and constitutes an outer case together with the cover body 8.

In this outer case, the bottom surface has a rectangular shape whose one side has a length approximately corresponding to the diameter of the optical disk 201, that is, for example, about 13 cm to 14 cm. The thickness of the outer casing in the vertical direction is, for example, about 2 cm to 3 cm.

A slot 7 for inserting the optical disk 201 horizontally from the front side is provided on the front surface of the outer casing.

A chassis 6 is arranged on the bottom side of the outer casing. The mounting portion 2 is mounted on the chassis 6.
Is provided. The disc mounting portion 2 includes a disc table 4, an optical pickup device 5, and a frame portion that supports the disc table 4 and the optical pickup device 5.

The frame portion of the disk mounting portion 2 is supported by the chassis 6 via a plurality of damper members 3 and is supported in a so-called floating state.

The disk table 4 is formed in a substantially disc shape, and is attached to the tip end side of a drive shaft of a spindle motor (not shown) supported by the frame. The spindle motor is supported with the drive shaft facing upward. The disc table 4 has a truncated cone-shaped projection at the center of the upper surface. The disk table 4 is located on the central portion of the chassis 6.

When the central portion of the optical disc 201 is placed on the disc table 4, the truncated cone-shaped projection is fitted into the chucking hole 202 so that the disc table 4 extends in the direction along the main surface portion of the optical disc 201. Positioning, so-called centering is performed. The optical disk 201 placed on the disk table 4 is pressed and held on the disk table 4 by a chucking member described later.

The optical pickup device 5 returns through a semiconductor laser as a light source, various optical devices for guiding the light beam emitted by the semiconductor laser, an objective lens 107 for condensing and emitting the light beam, and the objective lens 107. A photodetector or the like for detecting a light flux is built in the optical block section.

The optical pickup device 5 is supported by the frame so as to be movable in the contact and separation directions with respect to the disc table 4. In this optical pickup device 5, the optical axis of the objective lens 107 is parallel to the drive axis of the spindle motor, and the optical flux is emitted upward through the objective lens 107. In the disc mounting portion 2, the optical disc 201
Is mounted and held on the disc table 4, so that the objective lens 1 of the optical pickup device 5 is held.
07 faces the signal reading surface of the optical disc 201. Then, by rotating the spindle motor, the disc table 4 and the optical disc 2 are driven.
01 is rotated, and the optical pickup device 5 is moved in the direction of contact with and away from the disc table 4, so that the optical pickup device 5 causes the information signal to be recorded on the entire surface of the signal recording area of the optical disc 201. Can be read.

(2-2) Disc Retracting Arms (FIGS. 1, 2, 4 to 16) In the outer casing, as shown in FIG. 1, a pair of left and right disc retracting arms 54 and 56 are arranged. Has been done. As shown in FIG. 2, the disk pull-in arms 54 and 56 are disposed in front of the disk mounting portion 2 in a substantially symmetrical shape and in a symmetrical position.

These disk retracting arms 54, 56
In the support holes 59 and 61 formed on the base end side,
A rotary shaft planted in the lower surface of the lid 8 is inserted, and the lid 8 is rotatably supported via the rotary shaft. In the initial state, the disk pull-in arms 54 and 56 have their front ends extended forward.

Further, these disk pull-in arms 5
The disks 4, 56 have disk pull-in pins 55, 57, which serve as disk contact members, on the tip side. These disk pull-in pins 55 and 57 are columnar pins,
It is provided so as to project in a direction perpendicular to the main surface portion of the optical disc 201 inserted from the slot 7, that is, downward. These disk pull-in pins 55, 57
The diameter of the lower end of the
The portion on the side of the disk mounting portion 2 of the side surface portion that abuts on the peripheral edge portion of the optical disk 201 that has been inserted further is the defective portion 108.

Each of the disk retracting arms 54 and 56 described above.
Are linked to each other via a pull-in slider 51 serving as a transmission member. That is, the pull-in slider 5
1 is supported in the outer housing so as to be slidable in the lateral direction along the lower surface of the lid 8. The pull-in slider 51 is a pull-in spring 113 that serves as a pull-in biasing member stretched between a latching claw 94 provided on the pull-in slider 51 and a latching claw (not shown) provided in the outer housing. Thus, it is urged in one direction indicated by an arrow G in FIG. 2 (to the right toward the disc player device).

The disc pull-in arm 56 on one side (right side toward the disc player device) has a linking pin 60 on the rear side of the support hole 61, and the linking pin 60 is linked to the pull-in slider 51. The groove 53 is fitted and engaged. Further, the other side (the left side facing the disc player device) of the disc pull-in arm 54
Has a linking pin 58 on the front side of the support hole 59, and the linking pin 58 is fitted and engaged with the linking hole 52 of the pull-in slider 51.

Therefore, when the pull-in slider 51 is slid to one side indicated by arrow G in FIG. 2, the disc pull-in arm 56 on the one side is moved toward the above-mentioned tip side as shown by arrow H in FIG. Disk retracting arm 5
It is rotated in a direction toward the center side between 4, 56. When the pull-in slider 51 is slid to one side indicated by an arrow G in FIG. 2, the disc pull-in arm 54 on the other side is moved toward the tip side of each disc pull-in arm as indicated by an arrow J in FIG. It is rotated in the direction toward the center side between 54 and 56.

That is, the retracting spring 113 urges the disc retracting arms 54, 56 to rotate in the direction in which the tip ends of the disc retracting arms 54, 56 are directed toward the center between the disc retracting arms 54, 56. It will be.

Each of the disk retracting arms 54 and 56 described above.
When the optical disc 201 is inserted from the front side between the disc pull-in arms 54 and 56 as shown by an arrow S in FIGS.
The disk pull-in pins 55 and 57 are brought into contact with the peripheral edge of the optical disk 201, and the disk pull-in pins 55 and 57 are drawn in along with the movement of the optical disk 201 as shown by arrows T and U in FIG. The disk 113 is rotated in the direction against the biasing force of the spring 113, that is, in the direction in which the disk pull-in pins 55 and 57 are separated from each other.

As described above, the optical disc 201 is
Before the insertion operation is performed, each of the disc pull-in arms 54 and 56 is held at the initial position by the disc detection lever 62 described later. In this initial position, the disk retracting arms 54 and 56 are set to the positions shown in FIG.
As shown in FIG.
The distance between them is such that the optical disk 201 can be inserted between the disk pull-in pins 55 and 57.

Then, each of the above-mentioned disk pull-in arms 5
As shown in FIGS. 6 and 7, the distances between the disk pull-in pins 55 and 57 are the same as those of the optical disks 2 and 4, 56.
After the distance corresponding to the diameter of 01 is reached, the optical disc 201 is further moved to the rear side, and as shown by arrows H and J in FIG. Each disk pull-in pin 5
5 and 57 are rotated in the direction of approaching each other, and as shown in FIGS. 9 and 10, the respective disk pull-in pins 55,
The optical disc 201 is moved toward the disc mounting portion 2 via 57.

Each of the above-mentioned disk pull-in pins 55, 57
Is when the disk pull-in arms 54 and 56 move the optical disk 201 to a position facing the disk mounting portion 2, that is, to a position where the chucking hole 202 faces the central portion of the disk table 4. The optical disc 201 is positioned.

As described above, when each of the disc pull-in arms 54 and 56 pulls the optical disc 201 to a position facing the disc mounting portion 2, the disc pull-in arms 54 and 56 are provided with a disc detection lever 62 described later. The optical disc 201 is rotated to reach the loading position. In this loading position, the disc pull-in arms 54 and 56 are in positions to bring the disc pull-in pins 55 and 57 close to each other, as shown in FIG.

The disc ejecting pins 13 and 15 which serve as positioning members to be described later are located on the rear side of the disc mounting portion 2 and each of the disc retracting arms 54 and 56.
When the optical disc 201 is moved to a position facing the disc mounting portion 2, the optical disc 201 is positioned in cooperation with the disc pull-in pins 55 and 57.

(2-3) Structure of the chucking member (FIGS. 1, 2, 4 to 16) A chucking member is arranged in the outer casing. This chucking member is a chucking frame 8
4, a disc lifter plate 90, a chucking arm 92, and a chucking plate 91.

The chucking frame 84 includes a rear beam portion arranged along a rear edge portion of the outer casing, and extends from both ends of the rear beam portion toward the front to extend inside the outer casing. It has a pair of left and right side beam portions 86, 86 along the left and right side edge portions thereof and is formed in a U-shape. The chucking frame 84 has a pair of left and right support holes 85, 85 at the rear side portions of the side beam portions 86, 86. The chucking frame 84 has the support holes 85, 8 described above.
By inserting a pair of left and right support shafts arranged in the outer casing into the outer casing 5, the shaft 5 is rotatably supported and the side beam portions 8 are formed.
The front end side of 6,86 can be moved vertically.

Between the beam portions 86 on both sides of the chucking frame 84, front side portions of the beam portions 86, 86, the side beam portions 86,
A disc lifter plate 90 is attached across 86. The disc lifter plate 90 has a notch portion corresponding to the size of the disc mounting portion 2 in the central portion, and when the chucking frame 84 is rotated and moved to the chassis 6 side, That is, when the chucking frame 84 is at the chucking position, the disc mounting portion 2 is fitted in the notch and is moved to the chassis 6 side of the disc table 4.

The disc lifter plate 90 has the chucking frame 84 rotated to allow the chassis 6 to move.
When the chucking frame 84 is moved to the more separated direction, that is, when the chucking frame 84 is set to the release position, the chucked frame 84 is moved to a position further separated from the chassis 6 than the disk table 4.

The chucking arm 92 is
The chucking frame 84 is formed so as to project toward the front side from the substantially central portion of the rear beam portion. The tip side portion of the chucking arm 92 is located above the disc table 4.

The chucking plate 91 is formed in a disk shape having a diameter slightly larger than the diameter of the chucking hole 202 of the optical disc 201. The chucking plate 91 includes the chucking arm 92.
Is rotatably attached to the lower surface of the tip side portion.

The chucking plate 91 is brought into contact with the upper surface of the disk table 4 when the chucking frame 84 is at the chucking position. At this time, when the optical disc 201 is placed on the disc table 4, the chucking plate 91 cooperates with the disc table 4 to sandwich the optical disc 201. The chucking plate 91 that holds the optical disk 201 in cooperation with the disk table 4 is rotated together with the disk table 4 and the optical disk 201 when the disk table 4 is rotated by the spindle motor. To be done.

The chucking plate 91 is
When the chucking frame 84 is at the release position, it is separated from the upper surface of the disc table 4.

When the chucking frame 84 is at the release position and the optical disc 201 is inserted through the slot 7, the optical disc 201 is placed between the chucking plate 91 and the disc lifter plate 90. Inserted in.

Then, the chucking frame 84
Is stretched between the spring retaining portion 87 provided on the one side beam portion 86 (the side beam portion on the other side in this example) and the spring retaining portion provided inside the outer casing. As shown by an arrow L in FIG. 1 and FIG. 2, the tension coil spring 89 rotates and biases the chucking plate 91, that is, the chucking plate 91 toward the disc table 4 side. There is. A stopper member 73 and an eject slider 77 are arranged near the one side beam portion 86 (in this example, the other side beam portion).

The stopper member 73 is rotatably supported at its lower edge portion by a supporting shaft 75 with respect to a supporting side plate 67 arranged on the other side of the outer casing. In the initial state in which the upper edge portion is directed upward, the stopper member 73 abuts and supports the lower edge portion of the one side beam portion 86 by the abutting support portion 106 provided on the upper edge side, The chucking frame 84 is held at the release position.

The stopper member 73 is rotated around the support shaft 75 to move the upper edge of the stopper member 73 to the inner side of the outer casing, whereby the contact support portion 106 causes the stopper member 73 to move. The support for the side beam portion 86 is released, and the chucking frame 84 can be rotated toward the chucking position.

The stopper member 73 is urged to rotate by a torsion coil spring 76 externally fitted to the support shaft 75 in a direction in which it is in an initial state of supporting the chucking frame 84.

The stopper member 73 has an engaging pin 74 on the upper end side, and a hook-shaped member 93 attached to the pull-in slider 51 via the engaging pin 74,
It is rotated against the biasing force of the torsion coil spring 76. The hook-shaped member 93 is rotatably supported on the other end side of the pull-in slider 51, via a support shaft 96 planted on the pull-in slider 51, on the base end side.
The hook-shaped member 93 has a hook portion on the tip side and extends from an initial position where the hook portion can be engaged with the engagement pin 73 and a position where the hook portion is separated from the engagement pin 73. Therefore, it can be rotated. The hook-shaped member 93 is rotationally biased by the torsion coil spring 95 in the direction of the initial position as shown by an arrow R in FIGS. 1 and 2.

When the disk pull-in arms 54 and 56 are in the initial position, the pull-in slider 51 connects the hook portion of the hook-shaped member 93 to the engaging pin 74 of the stopper member 73 as shown in FIG. Is engaged with.

When the optical disc 201 is inserted and the pull-in slider 51 sets the disc pull-in arms 54 and 56 to the loading position,
As shown in FIG. 9, the pull-in slider 51 moves the engaging pin 74 inward of the outer casing by the hook portion of the hook-shaped member 93 to rotate the stopper member 73.

That is, when the optical disc 201 is pulled up to a position facing the disc mounting portion 2,
The pull-in slider 51 rotates the stopper member 73 via the hook-shaped member 93 to bring the chucking frame 84 to the chucking position.

The eject slider 77 has a pair of front and rear support slits 78 and 79, and the pair of front and rear support pins 69 and 68 provided on the support side plate 67 are inserted in correspondence with the support slits 78 and 79. It is supported so as to be slidable in the front-rear direction by fitting them together.

An eject button 82 is attached to the front end of the eject slider 77. The eject button 82 is projected to the front side of the front surface of the outer housing through a through hole provided in the front surface of the outer housing. The eject slider 77 is urged to move forward by a tension coil spring 83 stretched between the eject slider 77 and the outer casing, as indicated by an arrow M in FIG.

The eject slider 77 has a release operation pin 80 on the rear end side portion. The release operation pin 80 is located below one side beam portion 86 of the chucking frame 8. This one side beam portion 86
A taper cam portion 88 is formed at the lower edge portion of the.

When the eject slider 82 is pushed rearward by pressing the eject button 82,
The chucking frame 84 is rotated to the release position by bringing the release operation pin 80 into sliding contact with the taper cam portion 88.

When the eject slider 77 is slid forward by the urging force of the tension coil spring 83, the release operation pin 80 is moved to a position where it does not contact the taper cam portion 88.
The chucking frame 84 can be rotated to the chucking position.

Further, the eject slider 77 has an engaging piece 81 extending above the other end of the pull-in slider 51. The rear edge portion of the engagement piece 81 is a taper portion which is inclined with respect to the sliding direction of the eject slider 77, that is, the front-rear direction, and is attached to the other end of the pull-in slider 51 to perform a return operation. It faces the front of the pin 65.

When the eject slider 77 is pushed rearward by pressing the eject button 82 as shown by the arrow X in FIG. 11, the ejecting slider 77 causes the rear edge of the engaging piece 81 to move to the return operation pin 65. The sliding slider 51 is slidably contacted with
As shown in FIG.
6 is returned to the initial position.

The disc detection lever 62 is rotatably supported at the base end side thereof via the support shaft 102 in the outer casing. A disc detection pin 63 is planted on the tip side of the disc detection lever 62.

The disc detection lever 62 has the initial position shown in FIG. 4 in which the disc detection pin 63 is located between the support shaft 102 and one end of the pull-in slider 51, and the disc detection pin 63 is set to the initial position. It can be rotated over a disc detection position shown in FIG. 8 which is a position moved rearward from the position.

The disc detection lever 62 is urged by a torsion coil spring 64 to rotate in the direction for moving the disc detection pin 63 forward at the initial position as shown by an arrow K in FIGS. 1 and 2. , Is positioned at this initial position.

When the disc detection lever 62 is in the initial position, as shown in FIG. 4, the pull-in sliders 51 set the disc pull-in arms 54 and 56 to the initial positions by the disc detection pins 63. To move to the one end side from the position, that is,
The pull-in slider 51 prevents the disc pull-in arms 54 and 56 from moving to the loading position.

That is, this disc detection lever 62
Prevents the pull-in slider 51 from rotating the chucking frame 84 in the direction toward the disk mounting portion 2, that is, in the direction toward the chucking position when in the initial position.

Then, the disc detection lever 62 is
When the optical disc 201 is present at a position facing the disc mounting portion 2, the disc detection pin 63 is moved rearward by the optical disc 201 and rotated to the disc detection position, as shown in FIG. It

At this time, the disc detection lever 62
Cancels the blocking of the movement of the disc detection pin 63 with respect to the pull-in slider 51, and the pull-in slider 51 causes the disc pull-in arms 54 and 56 to move.
Can be moved toward the one end side from the position where is the initial position, that is, the pull-in slider 51 can set each of the disc pull-in arms 54 and 56 to the loading position.

That is, when the optical disc 201 is present at a position facing the disc mounting portion 2, the disc detection lever 62 causes the pull-in slider 5 to move.
1 makes it possible to rotate the chucking frame 84 in the direction toward the chucking position.

Then, the disc detection lever 62 is
When the pull-in slider 51 sets the disc pull-in arms 54 and 56 to the loading position, that is, when the disc pull-in arms 54 and 56 move the optical disc 201 to a position facing the disc mounting portion 2, As shown in FIG. 9, the one end portion of the pull-in slider 51 holds the disc detection pin 63 at a position away from the optical disc 201.

That is, at this time, the pull-in slider 51 holds the disc detecting pin 63 at a position separated from the optical disc 201 by bringing one end thereof into contact with the disc detecting pin 63.

Therefore, the chucking frame 8 is
4 indicates that the disk pull-in arms 54 and 56 are in the loading position to move the optical disk 201 to a position facing the disk mounting portion 2, and the disk detection lever 62 detects the disk by the optical disk 201. When it is rotated to the position, it is interlocked with the rotation of these disk retracting arms 54 and 56,
The optical disc 201 is mounted on the disc mounting part 2 by being moved to the disc mounting part 2 and moved to the chucking position.

The optical disc 2 is mounted on the disc mounting portion 2.
01 is loaded, that is, the optical disc 201.
Is placed on the disc table 4 and sandwiched between the disc table 4 and the chucking plate 91, the peripheral edge of the optical disc 201 is
Missing portion 108 of each of the disk pull-in pins 55, 57
Facing. That is, the optical disc 201 mounted on the disc mounting portion 2 does not slide its peripheral edge onto the disc pull-in pins 55 and 57.

When the optical disc 201 is loaded in the disc loading section 2, the optical disc 20 is loaded.
As described above, the disk lifter plate 90 is closer to the chassis 6 than the disk table 4 when the chucking frame 84 is in the chucking position as described above. Will not come into contact with.

Then, the optical disc 201 mounted on the disc mounting portion 2 has the chucking frame 84
When is rotated to the release position, it is placed on the disc lifter plate 90 and moved upward, so that it is separated from the disc table 4.

(2-4) Structure of Disc Ejecting Arm (FIGS. 1, 3, 4, and 16) A pair of left and right disc ejecting arms 12 and 14 serving as disc ejecting members are provided in the outer casing. Has been done. These disc ejection arms 12 and 14 are arranged symmetrically on the rear side of the disc mounting portion 2.

These disc ejection arms 12 and 14 are
Each of the base ends is supported corresponding to a pair of left and right support shafts 10 and 11 planted in a support top plate 9 attached to the lower surface of the lid body 8 and shown in FIG. 4 in an initial state. As described above, the tip ends of the respective disc ejection arms 12,
It is set to an initial position toward the diagonally front side of the intermediate side between 14.

The disc ejection arms 12 and 14 are
At the tip end side, disk ejection pins 13 and 15 which serve as a disk contact member and also serve as the positioning member are provided. When the disc ejection arms 12 and 14 are in the initial positions, the disc ejection pins 13 and 15 are also
These are the initial positions of the disc ejection pins 13 and 15.

That is, each disc ejection arm 1 described above
The disks 2 and 14 are supported so that the disk discharge pins 13 and 15 can be moved in the front-rear direction. The disc ejection arms 12 and 14 are moved by the optical disc 201 moved from the front side toward the disc mounting portion 2 as shown by arrows W and V in FIGS. , 15 are pressed, and the disc ejecting pins 13, 15 are rotated in a direction of moving them backward.

The disc ejection arms 12 and 14 are
On the base end side, a gear portion 1 centered on the support shafts 10 and 11
It has 6,17. Then, on the rear side portion of the lower surface of the lid body 8, the disc ejection arms 12, 14 are provided.
The discharge slider 31, which has a pair of rack gear portions 34 and 36 meshing with the gear portions 16 and 17 of the above, and also serves as a biasing force switching slider, is slidably supported in the lateral direction via the support top plate 9. ing.

The discharge slider 31 has a pair of support slits 32 and 33, and these support slits 32 and 33 are provided.
A pair of support pins planted in the support top plate 9 are inserted therethrough to be slidably supported.

The rack gear portion 34 on one end side of the ejection slider 31 meshing with the gear portion 16 of the ejection arm 12 on the one side (right side toward the disc player device) is formed toward the front side, and the gear portion 16 is formed. Meshes with the rear part of the. Further, the rack gear portion 36 on the other end side of the ejection slider 31 meshing with the gear portion 17 of the ejection arm 14 on the other side (left side toward the disc player device) is formed toward the rear side, and the gear portion 17 is formed. Meshes with the front part of the.

Therefore, when the ejection slider 31 is slid in the direction of the other side indicated by the arrow B in FIG. 1, the disc ejection arms 12 and 14 are moved as shown by the arrows C and D in FIG. , The disc ejection pins 13 and 1 above
5 is rotated in a direction in which it moves forward through the intermediate position between these disc ejection arms 12 and 14.

The disc player device has a biasing means for pivotally biasing the disc ejecting arms 12 and 14.

This rotation means is used for the disc ejection pin 1 described above.
The disk ejecting arm 1 in the direction in which 3, 15 are directed forward
A discharge spring 29 serving as a discharge biasing member for rotating and biasing the discs 2, 14 and a biasing force for biasing the disc discharge arms 12, 14 in a direction in which the disc discharge pins 13, 15 are directed rearward. And a retracting spring 23 that is a retracting biasing member that generates a biasing force stronger than the biasing force of the discharging spring 29.

The discharge spring 29 is a tension coil spring, and the spring retaining piece 2 on the other side of the support top plate 9 is used.
7 and the spring retaining portion 25 on the discharge slider 31 are stretched to urge the discharge slider 31 in the direction of the other side as indicated by arrow B in FIG.

Further, the retracting spring 23 is a tension coil spring, and can be rotated to one side of the supporting top plate 9 on the spring retaining piece 30 and the other side of the supporting top plate 9. The spring hook 24 of the attached first switching lever 19
It is stretched between and.

The first switching lever 19 constitutes an urging direction switching mechanism for switching the urging direction of the disk ejecting arms 12, 14 by the urging means. The central portion of the first switching lever 19 is rotatably supported by the support top plate 9 via a support shaft 111.

The first switching lever 19 has a front end side as an operating end 22 and a rear end side as an operated end 21. The first switching lever 19 is provided on the support shaft 1
11 has the spring retaining portion 24 between the operation end 22 and the retracting spring 2 that is retained by the spring retaining portion 24.
3, the operation end 22 is rotationally biased in a direction in which the operation end 22 is moved in the one side direction indicated by an arrow A in FIG.

The first switching lever 19 is positioned at an initial position in which the operating end 22 is directed to the front side and the operated end 21 is directed to the rear side, and a direction in which the retracting spring 23 is extended from the initial position. Further, it is rotatable within a predetermined angle.

The urging direction switching mechanism includes the first switching lever 19 and the second and third switching levers 4 rotatably attached to the discharge slider 31.
3, 40.

The second switching lever 43 is arranged rearward of the first switching lever 19, and
The base end side of the discharge slider 31 facing the other end is the support shaft 1
It is rotatably supported by the discharge slider 31 via 09. The tip end of the second switching lever 43 facing the one end side of the ejection slider 31 faces the operated end 21 of the first switching lever 19.

The second switching lever 43 is urged to rotate by a torsion coil spring 44 in the direction of moving the tip side to the front side as shown by an arrow F in FIG. 1, and is provided on the tip side. The copying pin 45 is attached to the support top plate 9
The cam portion 26 formed at the trailing edge portion is brought into contact with the cam portion 26 and is positioned at the initial position as shown in FIG. As shown in FIG. 9, the cam portion 26 moves the tip end side of the second switching lever 43 to the rear side via the copying pin 45 when the discharge slider 31 is moved toward the one end side. It has a shape to move.

The third switching lever 40 is arranged at the front side of the first switching lever 19,
The base end side of the discharge slider 31 facing the one end side is the support shaft 1
It is rotatably supported by the ejection slider 31 via 12. The third switching lever 40 has a tip portion 41.
Is directed toward the other end of the discharge slider 31.

The third switching lever 40 is rotated by the torsion coil spring 42 in the direction for moving the distal end portion 41 to the rear side as shown by an arrow E in FIG. It is positioned.

The third switching lever 40 is provided when the discharge slider 31 is slid toward the one end side.
When the operation end 22 of the first switching lever 19 is brought into contact with the tip end side, the tip end portion 41 is once rotated in a direction for moving the tip end portion 41 to the front side, and then the initial position is applied by the biasing force of the torsion coil spring 42. Then, at this time, as shown in FIGS. 8 and 9, the tip portion 41 is opposed to the operation end 22 of the first switching lever 19.

If the first switching lever 19 is at the initial position, the operation end 22 of the first switching lever 19 will not move to the third side even if the discharge lever 31 is slid toward the one end side. Does not come into contact with the tip side of the switching lever 40. However, the first switching lever 19
When the discharge lever 31 is slid toward the one end side, the second switching lever 43 rotates the operation end 22 in the front direction from the initial position as described later. , The operation end 22 is the third
This is brought into contact with the tip end side of the switching lever 40, and is opposed to the tip end portion 41 of the third switching lever 40.

This urging direction switching mechanism switches the urging direction of the disc ejecting arms 12, 14 by the urging means in accordance with the moving direction and position of the disc ejecting pins 13, 15.

That is, the disc ejection arm 12,
Reference numeral 14 denotes the disk ejection pins 13 and 15 shown in FIGS. 4 to 8 when the disk ejection pins 13 and 15 are positioned between the initial position and the first reversal position, that is, in front of the first reversal position. As described above, the disc ejection pins 13 and 15 are rotationally biased in the direction to move them forward. At this time, the rotational biasing of the disc ejecting arms 12 and 14 in the direction of moving the disc ejecting pins 13 and 15 forward is performed by the ejecting spring 23.
Made through.

The first inverted position is the optical disc 2
This is a position corresponding to the rear edge of the optical disc 201 when 01 is set at a position facing the disc mounting portion 2.

Further, the disc ejection pins 13 and 15 described above are provided.
8 reaches the first reversal position, the second switching lever 43 is moved to the rear side from the tip side as shown in FIGS. 8 to 9, so that the tip side is moved to the first side.
Remove the switching lever 19 from the operated end 21 to the rear side.

Then, the ejection slider 31 is moved to the one end side so that the disc ejection pins 13 and 15 are moved to the first position.
7 and 8, the second switching lever 43 causes the first switching lever 43 to approach the first reversal position.
The switching lever 19 is rotated to move the retracting spring 29.
Is stretched. Therefore, at this time, the retreat spring 29 also moves toward the first and second switching levers 19 and 43.
Similarly to the ejection spring 23, the ejection slider 31 is urged toward the other end side to move the disc ejection arms 12 and 14 in a direction to move the disc ejection pins 13 and 15 forward. Energize the rotation.

Further, in this urging direction switching mechanism, when the disc ejection pins 13 and 15 are moving rearward, the positions of the disc ejection pins 13 and 15 are the same as the first inverted position. When it is between the second reversal position which is on the rear side of the first reversal position, as shown in FIG. 9, the urging force of the retracting spring 29 is applied to the operation end of the first switching lever 19. 22 and the tip 41 of the third switching lever 40 to transmit to the disc ejection arms 12 and 14.

At this time, the urging force of the evacuation spring 29 urges the ejection slider 31 toward the one end side, as shown in FIG.
As indicated by the middle arrow W and the arrow V, the disc ejection arms 12 and 14 are rotationally biased in the direction of moving the disc ejection pins 13 and 15 rearward. Since the urging force of the retracting spring 29 is larger than the urging force of the ejecting spring 23, the disc ejecting arms 12, 1 are not affected.
4 is rotated in a direction in which the disc ejection pins 13 and 15 are moved rearward. Therefore, at this time, the respective disc ejection pins 13 and 15 are connected to each other by the optical disc 20.
It is separated from the peripheral portion of No. 1 and reaches the second inversion position.

When the disc ejection arms 12 and 14 position the disc ejection pins 13 and 15 to the rear side of the second inverted position, the biasing direction switching mechanism operates so that the disc ejection arms 12 and 14 can move the disc ejection pins 13 and 15 to the rear side. Disc ejection arm 1
The disks 2 and 14 are rotationally biased in the direction in which the disk ejection pins 13 and 15 are moved forward.

That is, each of the disc ejection pins 13,
When 15 is located rearward of the second inversion position after passing through the second inversion position, as shown in FIG.
Since the first switching lever 19 is returned to the initial position and the operation end 22 is removed rearward from the tip end portion 41 of the third switching lever 40, the discharge slider 31 is
Only the discharge spring 23 is urged toward the other end.

Then, the above-mentioned disc ejection pins 13 and 1
After 5 reaches the rear side of the second reverse position, the ejection slider 31 is locked by the lock lever 4 serving as a lock mechanism.
It is hooked by 6.

This lock lever 46 is used for the support top plate 9 described above.
A central portion is rotatably supported via a support shaft 110 planted on the lower surface of the discharge slider 31 and is disposed in the vicinity of the front edge portion on the other end side of the discharge slider 31.

The lock lever 46 is urged to rotate by a torsion coil spring 47 in a direction in which one end side of the lock lever 46 is pressed against the front edge portion of the discharge slider 31 as shown by an arrow Q in FIGS. 1 and 2. There is. A lock pin 49 is attached to one end of the lock lever 46.

A pressed surface portion 48 is formed on the other end side of the lock lever 46 toward the front side.
The pressed surface portion 48 faces the rear end portion of the eject slider 77.

A lock recess 50 into which the lock pin 49 is fitted and engaged is formed at the front edge portion on the other end side of the discharge slider 31.

When the ejecting slider 31 positions the disc ejecting pins 13 and 15 between the initial position and the first reversing position, the lock lever 46 is shown in FIGS. As described above, the lock pin 49 is brought into contact with the front edge portion of the discharge slider 31, which is closer to the one end side of the discharge slider 31 than the lock recess 50.

The lock lever 46, as shown in FIGS. 9 and 10, when the ejection slider 31 positions the disc ejection pins 13 and 15 rearward of the first inverted position. , The lock pin 49
Is fitted into the lock recess 50. At this time, the ejection slider 31 is prevented from returning to the other end side direction by the lock lever 46.

When the eject slider 77 is slid rearward, the lock lever 46 pushes the pressed surface portion 48 by the rear end portion of the eject slider 77 as shown in FIG. Four
The lock pin 49 is rotated against the urging force of the lock lever 7 so that the lock pin 49 is pulled out forward of the lock recess 50. Therefore, at this time, the ejection slider 31 can be returned to the other end side direction by the urging force of the ejection spring 23.

That is, the lock lever 46 causes the disc ejection arm 1 to move through the ejection slider 31.
2 and 14 can be released by the eject slider 77, and the disc ejection pins 13 and 15 are locked at a position rearward of the first inversion position, that is, at a position separated from the optical disc 201. To do.

The eject slider 77 is slid rearward so that the eject slider 31 moves to the eject spring 2.
When returning to the other end side by the urging force of 3,
As shown in FIGS. 1 to 14, the discharge slider 31 is
Until the disc ejection pins 13 and 15 return to the initial positions, the disc ejection arms 12 and 14 are rotated as shown by arrows C and D in FIGS. 11 to 14.

When the eject slider 77 is slid rearward, the chucking frame 84 is set to the release position as described above.
The optical disc 201 placed on the disc table 4 is lifted by the disc lifter plate 90,
It is separated from the disc table 4.

The optical disc 201 lifted by the disc lifter plate 90 is moved toward the front side by the disc ejecting pins 1 of the disc ejecting arms 12 and 14.
It is moved to the front side by 3,15.

A pair of left and right brake members 97, 97 are provided on both sides of the front portion of the outer casing. Each of the brake members 97 is rotatably supported on the rear end side by a support shaft 99 provided in the outer housing, and between the front end side spring retaining pin 100 and the inner wall portion of the outer housing. As shown by arrows O and P in FIG. 1, the tension coil spring 98 stretched over the front end of the coil is initially biased in a direction in which the front end side is directed to the inner side of the outer casing. It is located in position.

The brake members 97, 97 are unlocked by the lock lever 46 with respect to the ejecting slider 31, that is, the disk ejecting arms 12, 14 are released, and as shown by an arrow Z in FIG. The disc ejection arms 12 and 14 are the disc ejection pins 1 described above.
When the optical disc 201 is ejected to the front side by the urging force of the ejection spring 23 via
As shown in FIG.

At this time, each of the brake members 97, 97
Is rotated in the outer side direction of the outer casing by the optical disc 201 against the biasing force of each of the tension coil springs 98, 98.
By the return force of the optical disc 201 of FIG.
Control the movement speed of. At this time, the optical disc 201
As shown in FIG. 14, substantially half of the front side portion is stopped in a state of being projected to the front side of the outer casing through the slot 7.

Then, in FIGS. 15 and 16, the arrow Z
As shown in FIG.
The eject operation is completed by being pulled out to the front side from the outer casing via the.

[3] Operation of disc player device (FIG. 4)
16) (3-1) Initial state (FIG. 4) In this disc player device, in the initial state, as shown in FIG. 4, the disc retracting arms 54 and 56 and the disc detecting lever 62 are The initial position is set.

Further, each of the disc ejection arms 12, 1 described above
Reference numeral 4 designates the disc ejection pins 13 and 15 as initial positions.

The chucking frame 84 is held at the release position by the contact support portion 106 of the stopper member 73.

(3-2) Optical Disk Inserting Operation (FIGS. 4 to 10) In this disk player device, the optical disk 201
To insert the optical disc 201, as shown by an arrow S in FIG. 4, the optical disc 201 is inserted from the front side between the disc drawing arms 54 and 56 through the slot 7.
Insert. Then, each of the above-mentioned disk retracting arms 5
4, 56 are pressed against the disk pull-in pins 55, 57 by the peripheral edge of the optical disk 201, and resist the urging force of the pull-in spring 113, as shown by arrows T and U in FIG. Each disk pull-in pin 55,
It is rotated in the direction of separating 57.

When the optical disc 201 is inserted further rearward, as shown in FIG. 6, the distance between the disc pull-in pins 55 and 57 becomes equal to the diameter of the optical disc 201. At this time, the optical disc 201
The trailing edge portion abuts the disc ejection pins 13 and 15 at the initial position.

At this time, the disc detection lever 62 is brought into contact with the disc detection pin 63 on the peripheral portion of the optical disc 201, and starts to rotate in a direction with the disc detection pin 63 on the rear side.

When the optical disc 201 is inserted further rearward, as shown in FIG. 7, the trailing edge portion of the optical disc 201 presses the disc ejecting pins 13 and 15 to cause an arrow W and an arrow V in FIG. As shown in, the disc ejection arms 12 and 14 are rotated against the biasing force of the ejection spring 29.

The disc detection lever 62 is brought into contact with the disc detection pin 63 on the peripheral portion of the optical disc 201, and is rotated in a direction with the disc detection pin 63 on the rear side.

At this time, the second switching lever 43 is connected to the operated end 21 of the first switching lever 19.
The tip end of the retracting spring abuts, and the retracting spring 23 begins to be stretched. When the rotation for moving the disc ejecting pins 13, 15 of the disc ejecting arms 12, 14 to the rear side starts, as shown in FIG. 8, the disc retracting arms 54, 56 move the retracting springs 113. Due to the urging force of the disc pulling pins 55 and 57, the disc pulling pins 55 and 57 are rotated toward each other. At this time, each of the disk retracting arms 54 and 56 has the retracting spring 11
By the urging force of 3, the above-mentioned disk pull-in pins 55,
The optical disc 201 is pulled rearward via 57.

The disc detecting lever 62 is in contact with the disc detecting pin 63 on the peripheral portion of the optical disc 201, and is rotated in a direction with the disc detecting pin 63 on the rear side. The evacuation spring 23 is further extended.

When the optical disc 201 is pulled in to a position facing the disc mounting portion, as shown in FIG. 9, the disc pulling arms 54 and 56 are in the loading position. At this time, the disk pull-in pins 55 and 57 position the front edge side of the optical disk 201. At this time, the disc ejection pins 13 and 15 position the trailing edge of the optical disc 201.

That is, the optical disk 201 is positioned at a position facing the disk mounting portion, that is, the chucking hole 202, by the disk pull-in pins 55 and 57 and the disk ejecting pins 13 and 15, and the disk table 4 is provided. Is positioned to face the central portion of the.

In the disc detection lever 62, the disc detection pin 63 is brought into contact with one end of the pull-in slider 51 with the disc pull-in arms 54 and 56 in the loading position. The optical disc 201 is rotated and held to a position where it is separated from the optical disc 201.

At this time, each of the disc ejection pins 13,
15 reaches the first inversion position, and the tip of the second switching lever 43 is disengaged from the operated end 21 of the first switching lever 19. The operating end 22 of the first switching lever 19 is connected to the third switching lever 4 described above.
It faces the front end portion 41 of 0. Therefore, the discharge slider 31 is moved by the urging force of the retracting spring 23.
As shown by arrows W and V in FIG. 9, the disc ejection arms 12 and 14 are rotated in a direction to bring the disc ejection pins 13 and 15 to the second inverted position.

When each of the disc ejection pins 12 and 14 reaches the second inverted position, as shown in FIG. 10, the operation end 22 of the first switching lever 19 is moved to the tip of the third switching lever 40. The spring 23 for retreat returns to the initial state after being disengaged from the portion 41. The discharge slider 31
Is locked by the lock lever 46 while being biased toward the other end by the discharge spring 29. At this time, the disc ejection pins 12 and 14 are separated from the optical disc 201.

(3-3) Chucking of Optical Disc (FIGS. 9 and 10) When the disc pulling arms 54 and 56 reach the loading position, the pulling slider 51 is pulled.
Rotates the stopper member 73 via the hook-shaped member 93, as shown in FIG. Therefore, at this time, the chucking frame 84 is disclosed to be held by the contact support portion 106 of the stopper member 73, and is rotated to the chucking position by the biasing force of the tension coil spring 89.

When the chucking frame 84 comes to the chucking position, the optical disc 201 is moved.
Are sandwiched and held by the chucking plate 91 and the disc table 4. Further, at this time, the optical disc 201 has its peripheral portion opposed to the defective portions 108, 198 of the respective disc pull-in pins 55, 57, so that the disc pull-in pins 55,
Separated from 57.

In this state, the optical disc 201 is
It is possible to read the information signal from the optical disc 201 by the optical pickup device 5 by rotating the optical disc 201 with the spindle motor.

(3-4) Ejecting operation of optical disc (FIGS. 11 to 16) In this disc player device, arrow X in FIG.
11, when the eject button 82 is pressed to slide the eject slider 77 to the rear side, the eject slider 77 is moved by the engaging piece 81 as shown by an arrow Y in FIG. Through the return operation pin 65, the pull-in slider 51 is returned to the position where the disk pull-in arms 54 and 56 are in the initial positions.

At this time, the hook-shaped member 93 comes into contact with the engaging pin 74 of the stopper member 73, and is once rotated toward the rear side so that the hook portion on the tip side is brought into contact with the engaging pin 74. When it reaches the engagement position, it is rotated forward and returned to the initial state.

By sliding the eject slider 77 rearward, the chucking frame 84 is removed.
Is rotated upward by the release operation pin 80 via the taper cam portion 88 to the release position, and is held at the release position by the contact support portion 106 of the stopper member 73.

When the chucking frame 84 is at the release position, the optical disc 201 is
The disc lifter plate 90 is placed on the disc lifter plate 90 and separated from the disc table 4 above.

Then, as the eject slider 77 slides rearward, the lock lever 46
Is rotated, and the lock lever 46 releases the hook on the ejection slider 31.

The ejecting slider 31, which has been unlocked by the lock lever 46, is urged by the ejecting spring 29 so that the disc ejecting pins 13 and 15 are ejected as indicated by arrows C and D in FIG. The disc ejecting arms 12 and 14 are rotated in the direction in which the disc moves to the front side.

The disk ejection arms 12 and 14 are
As shown in FIGS. 11 to 14, the disc ejecting pins 13 and 15 are rotated as shown by arrows C and D in FIGS. 11 to 13 until they reach the initial positions.

At this time, the optical disc 201 has its trailing edge portion pressed by the disc ejection pins 13 and 15,
As shown by an arrow Z in FIGS. 12 and 13, a discharging operation is performed to the front side of the outer housing via the slot 7.

When the disc ejection arms 12 and 14 are rotated until the disc ejection pins 13 and 15 are set to the initial positions, the second switching lever 4 is moved.
3, the tip end side is brought into contact with the operated end 21 of the first switching lever 19, but is temporarily turned rearward,
When the tip side reaches a position where it does not contact the operated end 21,
It is rotated to the front side and returned to the initial state. Therefore,
At this time, the first switching lever 19 is not rotated.

Further, each of the disc ejection arms 12, 1 described above
The third switching lever 40 does not come into contact with the first switching lever 19 when the disc 4 is rotated until the disc ejection pins 13 and 15 are set to the initial positions.

When each of the disc ejecting pins 13 and 15 is in the initial position, the optical disc 201 is moved to the position shown in FIG.
As shown in FIG. 4, the brake members 97 and 97 sandwich the peripheral portions on both sides, and approximately half of the front side portion is projected to the front side of the outer casing through the slot 7. Stop in the state.

Then, in FIGS. 15 and 16, the arrow Z
As shown in FIG.
When the disk pull-in arms 54 and 56 are pulled out to the front side from the outer casing through the disk, the disk pull-in pins 55 are moved by the biasing force of the pull-in spring 113 as shown by arrows H and J in FIG. , 57 are rotated in the direction of approaching each other, and the optical disc 201 is pushed forward.

When the optical disc 201 is pulled out from the outer casing to the front side, the disc detection lever 6
2 returns to the initial position as shown in FIG.
The disc detection lever 62 is used for the optical disc 201.
16 is pulled out from the outer casing to the front side, as shown in FIG. 16, the pull-in slider 51 is moved to the respective disc pull-in arms 5 by the disc detection pins 63.
4, 56 is held at the initial position.
In this way, the disc retracting arms 54 and 56 are
The eject operation is completed by returning to the initial position.

[0164]

As described above, in the disc loading mechanism according to the present invention, the disc abutting member is provided on the rear side of the disc mounting portion and is supported so as to be movable in the front-rear direction. The disc ejecting member, which is operated by the optical disc moved from the front side toward the disc mounting portion in the direction in which the disc abutting member moves rearward through the disc abutting member, is a biasing direction switching mechanism. When the disc abutting member is positioned forward of the first inversion position by the biasing means, the disc abutting member is biased in a direction to move the disc abutting member forward, When the contact member is moved rearward and the disc contact member is located between the first reversal position and the second reversal position, Is urged in the direction of moving the disc contact member rearward, and when the disc contact member is positioned rearward of the second inversion position, the direction of moving the disc contact member forward. And is locked by the lock mechanism.

Therefore, in this disc loading mechanism, the disc ejecting member is prevented from coming into contact with the optical disc mounted in the disc mounting portion, and
By releasing the locking by the lock mechanism, the optical disc can be ejected forward by the disc ejecting member.

Further, in the disc loading mechanism, the urging means is such that the ejecting urging member for urging the disc ejecting member in the direction in which the disc abutting member is directed forward and the disc abutting member are directed rearward. And a retracting biasing member that exerts a biasing force that biases the disc discharging member in a direction, and that is stronger than the biasing force of the discharging biasing member. When the disc contact member is moving rearward and the position of the disc contact member is between the first reversal position and the second reversal position, the retracting biasing member Biasing force is transmitted to the disc ejecting member, and the disc abutting member is moved forward with respect to the disc ejecting member when the disc abutting member is located on the front side of the first inverted position. It The ejecting biasing member is used to urge the disc contacting member to move in the backward direction when the disc contacting member is moving rearward. The urging member for urging the disc abutting member in the direction of moving the disc abutting member to the rear when it is located between the second reversing position and the second reversing position is performed by the retracting urging member. The urging force in the direction of moving the disc contact member forward with respect to the disc discharge member when the disc contact member is located rearward of the second inversion position is determined by the discharge urging member. If it is decided to be done, the disc ejecting unit ejects the optical disc to the front side when the locking by the lock mechanism is released without making contact with the optical disc mounted in the disc mounting unit. The operation can be reliably performed.

Furthermore, in each of the above-mentioned disc loading mechanisms, the locking mechanism releases the engagement of the disc ejecting member with the disc ejecting member, and the disc ejecting member is urged by the urging means through the disc abutting member. When a brake member is provided that suppresses the moving speed of the optical disk by slidingly contacting the peripheral edge of the optical disk when the disk is discharged to the front side, the moving speed of the optical disk discharged by the disk discharging member is appropriately suppressed. It is possible to prevent the optical disc from being picked up in the air.

That is, according to the present invention, the device configuration is simplified,
It is possible to provide a disc loading mechanism suitable for being applied to a disc player device configured to be portable or outdoor, which can be reduced in size and weight and can suppress an increase in power consumption. .

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a disc player device having a disc loading mechanism according to the present invention.

FIG. 2 is a perspective view showing a configuration of a disc retracting arm of the disc loading mechanism.

FIG. 3 is a perspective view showing a configuration of a disc ejection arm of the disc loading mechanism.

FIG. 4 is a plan view showing an initial state of the disc loading mechanism.

FIG. 5 is a plan view showing a state in which an operation for inserting an optical disc has been started in the disc loading mechanism.

FIG. 6 is a plan view showing a state in the middle of an operation of inserting an optical disc in the disc loading mechanism.

FIG. 7 is a plan view showing a state in which an optical disc has been inserted into the disc loading mechanism and the disc ejection arm has been started.

FIG. 8 is a plan view showing a state in which the optical disc is pulled in and the disc ejection arm is operated in the disc loading mechanism.

FIG. 9 is a plan view showing a state where the optical disc is pulled in by the disc loading mechanism and the urging direction of the disc discharge arm is reversed.

FIG. 10 is a plan view showing a state in which the biasing direction of the disc discharge arm is reversed again and locked in the disc loading mechanism.

FIG. 11 is a plan view showing a state where the disc loading operation is started in the disc loading mechanism.

FIG. 12 is a plan view showing a state in which the disc ejection arm of the disc loading mechanism starts ejecting an optical disc.

FIG. 13 is a plan view showing a state in which the disc ejection arm is ejecting an optical disc in the disc loading mechanism.

FIG. 14 is a plan view showing a state where the disc ejection arm in the disc loading mechanism completes ejection of an optical disc.

FIG. 15 is a plan view showing a state where the optical disc ejected by the disc ejecting arm in the disc loading mechanism is taken out of the outer casing.

FIG. 16 is a plan view showing an initial state in which the optical disc is removed and then returned to the original state in the disc loading mechanism.

[Explanation of symbols]

 4 Disc Table 5 Optical Pickup Device 12,14 Disc Ejection Arm 13,15 Disc Ejection Pin 23 Evacuation Spring 29 Ejection Spring 31 Ejection Slider 46 Lock Lever 97 Brake Member 201 Optical Disc

Claims (3)

[Claims] 1. A disk mounting portion is provided on the rear side of the disk mounting portion, and has a disk contact member. The disk contact member is movably supported in the front-rear direction and is moved from the front side toward the disk mounting portion. A disc ejecting member which is operated by the optical disc to be moved in a direction in which the disc abutting member moves rearward through the disc abutting member, and a biasing means for moving and biasing the disc ejecting member. An urging direction switching mechanism for switching the urging direction of the disc ejecting member by the urging means according to the moving direction and position of the disc abutting member; and a lock mechanism for locking the disc ejecting member so as to be capable of releasing. The disc ejecting member includes a first disc contacting member,
Of the disk contact member is biased in a direction of moving the disk contact member forward, and the disk contact member is moved rearward. When the contact member is located between the first inverted position and the second inverted position,
A direction in which the disc contact member is moved forward when being biased in a direction to move the disc contact member rearward and the disc contact member is positioned rearward of the second inversion position. A disk loading mechanism that is urged by and locked by the lock mechanism. 2. The urging means includes an ejecting urging member for urging the disc ejecting member in the forward direction of the disc contact member, and a disc ejecting member in the rearward direction of the disc contact member. And a retracting biasing member that exerts a biasing force that is stronger than the biasing force of the discharging biasing member. While moving, when the position of the disc contact member is between the first reversal position and the second reversal position, the urging force of the retracting urging member is transmitted to the disc ejecting member. When the disc contact member is located on the front side of the first inverted position, the urging in the direction of moving the disc contact member forward with respect to the disc discharge member is:
The ejecting biasing member is provided, and when the disc contact member is moving rearward, the disc contact member is between the first inversion position and the second inversion position. The urging force in the direction of moving the disc abutting member toward the rear with respect to the disc ejecting member when the disc is positioned is performed by the retracting urging member, and the disc abutting member is positioned more than the second inversion position. The biasing force in the direction of moving the disc contact member forward with respect to the disc discharge member when positioned on the rear side is
2. The disc loading mechanism according to claim 1, wherein the disc urging member is used. 3. When the locking of the disc ejecting member by the lock mechanism is released and the disc ejecting member ejects the optical disc to the front side by the biasing force of the biasing means via the disc contact member, The disc loading mechanism according to claim 1 or 2, further comprising a brake member which is in sliding contact with the peripheral portion to suppress the moving speed of the optical disc.