JPH11242845A - Disk loading device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily load and unload a record medium disk with simple constitution. SOLUTION: This is a loading device which loads a record medium disk in a disk loading part 82 in a disk recording and/or reproducing device for recording and/or reproduction on the record medium disk 100 and is equipped with the disk loading part which is loaded with the record medium disk, a lid part 30 which is provided movably between a closure position where the record medium disk loaded in the disk loading part is covered and an opening part where the disk loading part is exposed to the outside, and disk pressing means 190, 194, 200, and 203 which load the record medium disk in the disk loading part by pressing the record medium disk toward the disk loading part when the lid part is moved from the opening position to the closure position and separate from the record medium disk when the lid part reaches the closure position.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a novel disc loading device. More specifically, disc recording and / or reproduction for recording and / or reproducing a recording medium disc
Also, the present invention relates to a technique for easily attaching and detaching a recording medium disk with an inexpensive configuration in a reproducing apparatus.

[0002]

2. Description of the Related Art Recording on a recording medium disk and / or
Alternatively, in a disk recording and / or reproducing apparatus for performing reproduction, a recording medium disk is held by a disk table rotated by a spindle motor and rotated to perform recording or reproduction.

In a conventional disk recording and / or reproducing apparatus, particularly, in a portable type, a recording medium disk is manually attached to and detached from a disk table.

[0004]

Manually attaching and detaching the recording medium disk to and from the disk table involves not only a troublesome operation but also a risk of damaging the recording medium disk.

More specifically, a plurality of chucking balls resiliently urged so as to partially project from an outer peripheral surface of a positioning projection provided on a disk table for fitting a center hole of a recording medium disk and positioning the recording medium disk. Are arranged at equal intervals, and by pushing the recording medium disk toward the disk table with the recording medium disk being positioned with respect to the positioning projection, the chucking ball is positioned inside the positioning projection against the elastic force urged against the chucking ball. The recording medium disk is placed on the disk mounting surface of the disk table, and the opening of the center hole on the side opposite to the disk table is pressed. The chucking ball resiliently engages the edge, thereby holding the recording medium disk on the disk table, i.e., In the case of a so-called ball chucking system in which chucking is performed, an operator holds an appropriate place of the recording medium disk with a finger and mounts the disk on the disk table or removes the disk from the disk table. I was

Therefore, there is a risk that the recording medium disk may be damaged when the disk is mounted or removed, and that the operability is poor. In particular, the removal operation is performed by holding the peripheral edge of the recording medium disk with a finger and pulling it in the direction opposite to the disk table, or by putting a finger on the front edge of the recording medium disk and Between the center hole and the outer peripheral edge, apply another finger to the portion on the opposite side of the edge on which the finger is hooked and the center hole, and lift the finger on the edge upward. ,
Since the operation is performed as if the recording medium disk was peeled off from the disk table, there was a risk that the recording medium disk might be damaged or deformed.

Of course, there is a so-called magnet type as a system for automatically chucking a recording medium disk. That is, a magnet or a magnetic material is provided on the positioning projection of the disk table, while a magnetic material or a magnet is provided on the chucking pulley opposed to the disk table and the recording medium disk, and the disk table and the chucking pulley are provided. The recording medium disk is chucked by sandwiching the recording medium disk.

In such a magnet type, for example, if a chucking pulley is provided on a lid portion, a recording medium disk is placed on a disk table, and
By closing the lid, chucking can be automatically performed.However, the chucking pulley must be rotatable on the lid and provided to be movable to some extent in the axial direction. There is a problem that the mechanism is complicated and expensive, and a space is required in the thickness direction, which hinders miniaturization.

SUMMARY OF THE INVENTION It is an object of the present invention to easily mount and remove a recording medium disk with an inexpensive configuration.

[0010]

In order to solve the above-mentioned problems, a disk loading device according to the present invention has a disk mounting portion on which a recording medium disk is mounted, and a cover for covering the recording medium disk mounted on the disk mounting portion. A lid movably provided between a position and an open position where the disk mounting portion faces the outside; and when the lid is moved from the open position to the closed position, the recording medium disk is moved to the closed position. The recording medium disk is mounted on the disk mounting portion by pressing the disk medium toward the disk mounting portion, and is provided with disk pressing means for separating from the recording medium disk when the lid reaches the closing position.

Therefore, in the disk loading device of the present invention, the recording medium disk is mounted on the disk mounting portion by the disk pressing means when the lid is moved from the open position to the closed position.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a recording medium disc loading apparatus according to an embodiment of the present invention. In the illustrated embodiment, the present invention is applied to a CD loading device in a CD player for reproducing a CD (compact disk). The present invention can be applied to a recording medium disk loading device in a disk recording and / or reproducing device other than a CD player.

The CD player 10 has a main body 20, a lid 30 rotatably provided with respect to the main body 20, and a disk holder 40 disposed between the main body 20 and the lid. doing.

The main body 20 is provided with a housing composed of a flat outer housing 50 having an upper opening and an upper plate 60 arranged so as to cover the upper opening of the outer housing 50. Become composed.

A mechanical chassis 70 is disposed at the center of the upper surface of the bottom of the outer casing 50 in the left-right direction and is located rearward, and a disk rotating mechanism 80 is provided at a front end of the mechanical chassis 70. An optical pickup 90 is disposed behind the rotation mechanism 80.

The disk rotating mechanism 80 includes the mechanical chassis 7
A spindle motor 81 fixed to the front end of the
A disk table 82 serving as a disk mounting portion is fixed to a rotation shaft of the spindle motor 81. The disk table 82 has a disk shape and has a CD 1
A circular positioning projection 83 is fitted to the center hole 101 of the second mounting member to protrude therefrom. And three chucking balls 84, 84, 84 are arranged on the positioning projection 83 at equal intervals in the circumferential direction. The chucking balls 84, 84, 84 have a small spherical shape, and a part thereof projects from the outer peripheral surface of the positioning projection 83, and the moving force in the projecting direction is urged by a resilient means (not shown). It is arranged in the state where it was done.

The optical pickup 90 includes a light emitting element (not shown), an objective lens 91 for condensing and irradiating a light beam emitted from the light emitting element onto a signal surface of the CD 100, and an optical system for guiding the light beam emitted from the light emitting element to the objective lens 91. An optical detector for detecting return light reflected on the signal surface of the CD 100 is provided.
2 is movably supported in the radial direction of the CD 100 mounted on the CD 2 and is moved in the above-described direction by a sled mechanism (not shown).

The disk table 82 projects through the front end of the opening 61 formed from the center to the rear end of the upper plate 60 so that the upper surface is located slightly higher than the upper surface of the upper plate 60, and The objective lens 91 of the optical pickup 90 is positioned so as to face upward from the opening 61.

The lid 30 has a top plate 60 at its rear end.
Is rotatably supported. At the position near the left and right ends on the inner surface of the rear end portion of the lid portion 30, supported pieces 31, 31 each having a substantially crank shape as viewed from the side are provided so as to protrude therefrom. Supported pins 31a, 31a are protruded from side surfaces of the bent portion facing each other. Engaging pieces 31b, 31b protrude from the tips of the supported pieces 31, 31, respectively. Insertion holes 62, 62 are formed at positions near the left and right sides of the rear end of the upper surface plate 60, and the lower surface of the upper surface plate 60 is formed on the side of the lower surface of the upper surface plate 60 adjacent to the insertion holes 62, 62. Supporting pieces 62a, 62a protrude along the edges, and supporting grooves 62b, 62b extending in the left-right direction are formed on the lower surfaces of the supporting pieces 62a, 62a. Thus, the supported pieces 31, 31 of the lid 30 are inserted into the insertion holes 62, 62 of the upper surface plate 60 from above, and the supported pins 31
a, 31a are the support grooves 62b, 6 of the support pieces 62a, 62a.
The cover 30 is rotatably supported by the upper surface plate 60.

On one side of the lower surface of the upper plate 60, an open slider 110 is slidably supported in the front-rear direction.
The release slider 110 has a long plate shape substantially in the front-rear direction, and is separated from the front-rear direction by two guided slits 111, 1 and 2.
12 are formed. The guide sliders 63a and 63b projecting from the lower surface of the upper plate 60 are inserted into the guided slits 111 and 112, so that the open slider 110 is slidably supported in the lower surface of the upper plate 60 substantially in the front-rear direction. Is done. And the front guided slit 111 has a lateral width sufficiently larger than the outer diameter of the guide pin 63a,
At a position near the rear end of the right side edge, an inclined edge 111a that is displaced leftward as going backward is formed. The rear guided slit 112 has substantially the same lateral width as the outer diameter of the guide pin 63b.

A side piece 113 projecting downward is integrally formed on the right side edge of the open slider 110, and a hooking piece 113a projecting leftward is formed at the rear end of the side piece 113.
A spring hook 113b is formed at the front end of the side piece 113. A push piece 114 is provided at the front end of the release slider 110.
Are projected forward, and an engagement edge 114 a facing forward is formed on the left edge of the pushing piece 114.

A tension coil spring 120 is stretched between the support shaft 64 projecting from the lower surface of the upper plate 60 and the spring hook 113b of the release slider 110.
The opening slider 110 is biased by a forward moving force. The extension coil spring 120 is used for the open slider 1.
In order to pull forward the spring hook 113b formed on the right side edge of the slider 10, the release slider 110 is also urged to rotate clockwise as viewed from above. Guided slit 111
Is in a state where the right edge thereof is in contact with the guide pin 63a.

As described above, the release slider 110 urged forward by the moving force moves the release slider 113a.
Is engaged from behind with an engaging piece 31b formed on one of the supported pieces 31 of the lid 30, whereby the lid 30
To the opening direction, i.e., the direction in which the front end is separated from the main body 20. When the lid 30 is opened with respect to the main body 20, the supported pieces 31, 31 abut against the rear edges of the insertion holes 62, 62 of the upper surface plate 60, so that the angle with respect to the main body 20 is determined. , Approximately 60 degrees (see FIG. 12). Note that FIG.
2 is referred to as an “open position”.

Next, a mechanism for locking the lid 30 at the closed position where the lid 30 closes the upper surface of the main body 20 will be described.

At the front end of the lid portion 30 is provided a locked piece 32 projecting downward, and the locked piece 32 has an engaging hole 3.
2a is formed.

An insertion hole 65 is formed at the front end of the upper plate 60, and the lock piece 3 of the lid 30 is inserted into the insertion hole 65.
2 is inserted. A lock slider 130 is supported on the lower surface of the front end of the upper surface plate 60 so as to be slidable substantially in the left-right direction. The lock slider 130 is
The guide hole 132 is formed in a plate shape that is substantially
The guided hole 132 has a substantially triangular shape, and an edge 132a corresponding to the bottom is formed in an arc shape inclined so as to be displaced rearward as going to the right.

An engagement piece 133 protruding forward is formed at the left end of the lock slider 130, and an upper surface 133a of the engagement piece 133 is an inclined surface that is displaced downward as it goes forward. .

Further, a connecting pin 134 is formed on the lower surface of the front edge of the right end of the lock slider 130, and a spring hook 135 projecting rearward is formed on the rear edge of the right end.

On the lower surface of the upper plate 60, guide pins 66, 66 are provided at two positions, a position slightly behind the right end of the insertion hole 65 and a position to the right of the position. Then
The lock slider 130 has its guided holes 131, 13
When the guide pins 66 are inserted through the guide pins 2, the guide pins 66 are movable substantially in the left-right direction.

An eject knob 1 is provided on the front end surface of the upper plate 60.
40 is slidably supported in the left-right direction. The eject knob 140 is provided with a connecting portion 141 protruding inward of the upper surface plate 60, and a connecting hole 141a is formed at the rear end of the connecting portion 141.

The connecting pin 134 of the lock slider 130 is inserted into the connecting hole 141a of the eject knob 140.
Is rotatably inserted from below, whereby the lock slider 130 is connected to the eject knob 140. Therefore, by sliding the eject knob 140, the lock slider 130 is moved substantially in the left-right direction.

The fall prevention plate 150 is used as the lock slider 130
The lower surface of the lock slider 130 is fixed to the upper surface plate 60, thereby preventing the lock slider 130 from falling down. Also,
A spring hook 151 is formed to protrude rearward at a position near the left end of the trailing edge of the falling-off prevention plate 150, and a tension coil spring 160 is stretched between the spring hook 151 and the spring hook 135 of the lock slider 130. This allows
The moving force in the leftward direction, that is, in the direction of arrow A in FIG. 14 is urged to the lock slider 130, and the moving force in the same direction is also urged to the eject knob 140 via the lock slider 130. You. Further, the tension coil spring 160
14 acts on the spring hooking piece 135 located behind the connecting pin 134, so that the lock slider 130 is urged to rotate counterclockwise when viewed from above, that is, in the direction of arrow B in FIG. Is done. Therefore, the lock slider 130 and the eject knob 140 are located at the left end of the moving range when no external force is applied.
Is located at the front end of the movement range (FIGS. 14 and 18).
reference).

Then, when the lid 30 rotates to a position where the upper surface of the main body 20 is closed, the locked piece 32 is rotated.
Is inserted through the insertion hole 65 of the upper surface plate 60. Locked piece 3
2 is inserted into the insertion hole 65, the lower end edge thereof is the upper surface (inclined surface) 133a of the engagement piece 133 of the lock slider 130.
And press it (see FIGS. 16 and 17). Since the upper surface 133a of the engagement piece 133 is an inclined surface, a force to move the lock slider 130 backward acts on the lock slider 130, whereby the lock slider 130 moves clockwise as viewed from above, that is, FIG. Middle arrow C
The locked piece 32 of the lid 30 can be further moved downward, and the locked piece 3
The second engagement hole 32 a is provided with the engagement piece 13 of the lock slider 130.
When the lock slider 130 comes to a position corresponding to the position 3, the lock slider 130 rotates in the direction of arrow B in FIG. 14 by the urging force of the extension coil spring 160, and the engagement piece 133 engages with the engagement hole 32 a of the lid 30. Then, the lid 30 is locked at the closed position where the lid 30 closes the upper surface of the main body 20 (see FIGS. 14 and 18).

In order to open the lid 30, that is, to move it to the position where the upper surface of the main body 20 is opened, the eject knob 140 is moved rightward, that is, in the direction of arrow D in FIG. Then, the lock slider 130 connected to the eject knob 140 is moved in the same direction, that is, as shown in FIG.
5 Moved in the direction of arrow D. At this time, since the guide pin 66 formed on the upper surface plate 60 relatively slides along the arc edge 130a of the guided hole 132 of the lock slider 130, the lock slider 130 applies a rotating force in the direction of arrow C in FIG. And rotate in the same direction. Therefore, the lock slider 13
Since the 0 engagement piece 133 also moves rearward while moving in the direction of arrow D in FIG. 15, it comes out of the engagement hole 32 a of the lid 30 rearward. Accordingly, the lock of the lid 30 to the closed position is released, and the lid 30 is rotated upward by the urging force of the tension coil spring 120 to open the upper surface of the main body 20 (see FIG. 12).

The disk holder 40 is rotatably supported at its rear end by the rear end of the upper plate 60.

The disk holder 40 includes a bottom plate 41 and a top plate 42.
And a side wall plate 43. The bottom plate 41 is a space 44 between each other.
And two parts, that is, a left bottom plate portion 41a and a right bottom plate portion 41b, each of which has a rectangular shape long in the front-rear direction. The width of the space 44 formed between the two bottom plate portions 41a and 41b is substantially equal to the width of the opening 61 formed in the top plate 60.

The top plate 42 has a substantially crescent shape and is spaced above the bottom plate 41 with the concave arc edge 42a facing forward and the convex arc edge 42b facing rear. , And the bottom plate 41 are connected by a side wall plate 43. The portion of the side wall plate 43 corresponding to the convex arc edge 42b forms an inner peripheral surface having a curvature substantially equal to the curvature of the outer peripheral edge of the CD 100. Further, the front end of the side wall plate 43 is provided with the CD 10 normally held by the disk holder 40.
It is located at a position slightly behind the portion having the maximum outer diameter of 0.

At the position near the rear end of the lower surface of each of the bottom plate portions 41a, 41b, spring hooking pieces 45, 45 project downward and are formed on the top plate 60. It projects to the lower surface side of the upper surface plate 60 through the insertion holes 67a, 67a. Moreover, each bottom plate part 41a, 41b
Rotation restricting pieces 46, 46 project downward from the lower surface of the upper surface plate 60 at positions in front of the positions where the spring hook pieces 45, 45 protrude. It projects to the lower surface side of the upper surface plate 60 through the formed insertion holes 67b, 67b. Engagement pieces 46a, 46a projecting forward are formed at the lower ends of the rotation restricting pieces 46, 46. When the disc holder 40 is rotated upward, the engagement pieces 46a, 46a The front opening edges of the insertion holes 67b, 67b are engaged from below to regulate the upward rotation angle of the disc holder 40. When the disc holder 40 is fully turned upward, the angle formed between the disc holder 40 and the main body 20 is less than half that of the lid 30.
For example, it is kept at about 5 to 15 degrees.

At the portion of the lower surface of the upper surface plate 60 near the left and right ends, a push-up piece 4 is formed at a substantially intermediate portion in the front-rear direction.
7, 47 are rotatably supported. The push-up piece 4
Reference numerals 7 and 47 are formed long in the front-rear direction, and are rotatably supported by the upper surface plate 60 at a portion of the front end near the upper end. Abutting portions 47a, 47a having a convex arc shape as viewed from the side are formed on the upper surfaces of the rear end portions of the push-up pieces 47, 47, and the spring hook pieces 47b, 47b are formed on the lower surface of the front end portions.
Is protruding. The push-up pieces 47, 47 have insertion holes 67 c, 6 whose rear ends are formed in the upper surface plate 60.
7c, projecting upward through the contact portions 47a, 47a
Are in contact with the bottom surfaces of the bottom plate portions 41a and 41b of the disk holder 40.

The spring hooks 45, 4 of the disk holder 40
5 and spring pieces 47b, 47b of push-up pieces 47, 47
The tension coil springs 48, 48 are stretched between the disk holder 40 and the disk holder 40.
47 is energized by a turning force in the direction in which the rear end moves upward.

On the left side of the front end of the disk holder 40, a CD pull-in member 49 is provided. The CD pull-in member 49 includes an arc-shaped side portion 49a and the side portion 49a.
And a bottom surface portion 49b protruding rightward from the lower edge of the cover is integrally formed. The bottom surface portion 49b projects further rearward than the rear end of the side surface portion 49a, and the rear end portion is turned toward the bottom plate portion 41a so that the bottom surface portion 49b is along the lower surface of the left bottom plate portion 41a of the disk holder 40. It is movably supported. The side surface portion 49a is positioned such that its rear end is continuous from the left front end of the side wall plate 43 of the disc holder 40 to the front, and the front end is a portion where the CD 100 normally held by the disc holder 40 has the maximum outer diameter. It is located in a position that wraps forward. A spring hook 49c protruding from the right end of the rear end of the bottom surface 49b of the CD pull-in member 49 and the left bottom plate 41 of the disc holder 40
A tension coil spring 49d is stretched between the spring hooking piece 41c protruding from the lower surface of the CD a and the CD pull-in member 49 has a counterclockwise direction as viewed from above, that is, an arrow E in FIG. The turning force in the direction is energized. Then, the rotation in the direction of the arrow E stops when the side surface portion 49a contacts the left edge of the front end portion of the left bottom plate portion 41a. In this state, the arc of the side wall plate 43 It is continuous with the arc.

The left bottom plate portion 41a and the top plate 42 of the disk holder 40 are formed with slits 41d and 42c which correspond vertically and extend substantially in the front-rear direction.

Next, a mechanism for ejecting the CD 100 held on the disk holder 40 and mounted on the disk table 82 will be described.

An eject arm 170 is rotatably supported on the lower surface of the upper plate 60. The eject arm 170 has a substantially rectangular main portion 171 and an arm portion 17 projecting substantially to the left from the left end front end of the main portion 171.
2 are integrally formed of a sheet metal material. And
The right end and the rear end of the main portion 171 are rotatably supported by the support shaft 64 protruding from the lower surface of the upper surface plate 60. Also,
The arm portion 172 extends rearward from the left end front end of the main portion 171 so as to draw a concave arc, and the left end is located at a position close to the left edge of the opening 61 near the front end. The guide slit 68 extends from a position close to the front end of the left edge of the opening 61 of the upper surface plate 60 to a position slightly closer to the front so as to draw an arc centered on the support shaft 64.
a guide pin 1 projecting upward from the left end of the arm portion 172 of the eject arm 170.
72a is slidably engaged with the guide slit 68a. Therefore, the eject arm 170 can rotate within a range in which the guided pin 172a moves between the rear end and the front end of the guide slit 68a.

A spring hook pin 171a is suspended at a position near the left end of the front edge of the main portion 171 of the eject arm 170. The spring hook pin 171a is suspended from the upper surface plate 60 at a position forward of the spring hook pin 171a. A toggle spring 173 is arranged between the spring hook pin 68b. That is, the toggle spring 173 has one of its arm pieces as the eject arm 170.
, And the other arm piece is engaged with a spring engaging pin 68b of the upper surface plate 60.
Therefore, by the toggle spring 173, the ejected arm 170 is provided with the guided pin 172a in the clockwise direction when viewed from above when the guided pin 172a is located at the middle position of the guide slit 68a. That is, the turning force in the direction of arrow F in FIG. 4 is urged, and in a state in front of the boundary, in the counterclockwise direction as viewed from above, that is, in the direction of arrow G in FIG. The turning power for the direction is energized. Accordingly, the eject arm 170 maintains the state where the guided pin 172a is located at the rear end and the front end of the guide slit 68a by the biasing force of the toggle spring 173, respectively.

The rear edge of the main portion 171 of the eject arm 170 excluding the right end portion has a wall portion 17 protruding downward.
4 is formed, and an insertion slit 174a is formed in the wall portion 174 so as to extend in the left and right direction.

The extruded piece 114 of the release slider 110 is inserted into the insertion slit 1 of the eject arm 170.
74a is inserted from the rear.

Thus, a state in which the release slider 110 is located at the rear end of the moving range, that is, a state in which the lid 30 is in the closed position, and a state in which the eject arm 170 is located at the rear end of the rotating range, That is, the guided pin 1
In a state in which 72a is located at the rear end of the guide slit 68a, the engaging edge 1 of the pushing piece 114 of the release slider 110
14a is in a state of being engaged with a left portion 174b (hereinafter, referred to as an “engaging surface”) of the left end of the insertion slit 174a in the wall portion 174 of the eject arm 170 (FIG. 7).
reference).

From this state, the release slider 110 is opened.
Moves forward, that is, when the lid 30 rotates toward the open position, the engaging edge 114 a of the open slider 110 is moved to the engaging surface 174 b of the eject arm 170.
Is pushed forward, so that the eject arm 170
Is turned in the direction of arrow G in FIG. 10 against the urging force of the toggle spring 173. When the rotation of the eject arm 170 in the direction of arrow G in FIG. 10 passes the intermediate point, the biasing force of the toggle spring 173 further rotates the eject arm 170 in the same direction, and the eject arm 170 rotates It is rotated until the front end of the range, that is, its guided pin 172a reaches the front end of the guide slit 68a. During this time, the open slider 110
Is rotated counterclockwise when viewed from above, that is, in the direction of arrow H in FIG. 11, as the inclined edge 111a of the guided slit 111 slides on the guide pin 63a. The mating edge 114a is disengaged rightward from the engaging surface 174b of the eject arm 170 (see FIG. 11).

Then, from the state shown in FIGS. 2 and 11,
When the eject arm 170 is rotated clockwise as viewed from above, that is, in the direction of arrow F in FIG. 11, the engaging edge 111a of the release slider 110 moves rightward from the engaging surface 174b of the eject arm 170. Since the eject arm 170 is at the disengaged position, the eject arm 170 can rotate to the rear end of the rotation range, that is, until the guided pin 172a reaches the rear end of the guide slit 68a (see FIG. 4).

When the lid 30 is rotated toward the closed position from the state shown in FIGS.
Moves rearward, and the left-hand edge behind the engaging edge 114 a of the pushing piece 114 is ejected by the turning force urged by the extension coil spring 120.
The sliding edge 110 a slides against the left edge of the insertion slit 174 a, and when the opening slider 110 reaches the rear end of its moving range, the engaging edge 114 a comes immediately behind the engaging surface 174 b of the eject arm 170. Therefore, the release slider 110 is rotated in the direction of arrow I in FIG.
14a comes to a position where it engages with the engagement surface 174b of the eject arm 170.

An eject slider 180 is supported on the lower surface of the upper plate 60 so as to be slidable substantially in the front-rear direction.
The eject slider 180 is formed in a slender plate shape by a metal plate, and a base end 181a of an eject pin 181 protruding upward at a rear end thereof is formed on the upper surface plate 60 and extends substantially in the front-rear direction. 68c, and the front end of the eject slider 180 is connected to the arm 172 of the eject arm 170.
Is rotatably connected to the left end. The eject pin 181 is connected to the left bottom plate 4 of the disc holder 40.
Through the slit 41d formed in the left bottom plate portion 41
a and the top plate 42. When the disc holder 40 is located at the lower end of the rotation range, the upper end of the eject pin 181 is
Is formed so as to protrude slightly upward from the slit 42c formed therein.

When the CD 100 is inserted into the disc holder 40 with the lid 30 in the open position (see FIGS. 2 and 12), the outer peripheral edge located on the left rear side of the CD 100 is ejected. The pin 181 is pressed rearward, which causes the ejection pin 18
1. The eject slider 180 moves substantially rearward, and is pulled by the eject slider 180, and the eject arm 170 is rotated in the direction of arrow F in FIG. Then, after turning in the direction of arrow F in FIG. 3 and passing the intermediate point, it turns in the same direction by the urging force of the toggle spring 173 and reaches the rear end of the turning range. As a result, the eject slider 180 and the eject pin 181 reach the rear end of the movement range, and the CD 100 is inserted up to the rear end of the disc holder 40 (see FIG. 4).

During this time, as the CD 100 is inserted into the disc holder 40, the outer peripheral edge located on the left side of the CD 100 causes the side portion 49a of the CD draw-in member 49 to move.
Is pressed almost to the left, which causes C
The D retraction member 49 rotates in the direction of arrow J in FIG. 2 against the urging force of the extension coil spring 49d, and allows the CD 100 to enter the disk holder 40. And CD1
00 is the side portion 49a of the CD pull-in member 49.
After the front end of the CD 100, the CD pull-in member 49 is urged by the extension coil spring 49d to rotate in the direction indicated by the arrow E in FIG. 3), and acts to draw the CD 100 into the disc holder 40. This ensures that the CD 100 is pulled into the disc holder 40.

Then, when the lid 30 is turned to the closing position, the lid 30 is pushed by the lid 30 and
Is also rotated downward, and the CD 100 is mounted on the disk table 82 as described later. At the same time, the engaging edge 114a of the release slider 110 is engaged with the engaging surface 174b of the eject arm 170.

As described above, when the cover 30 is opened from the state in which the CD 100 is mounted on the disk table 82, the opening slider 110 is rotated with the rotation of the cover 30 toward the open position. The ejecting arm 170 moves forward, and its engaging edge 114 a
b is pushed forward, so that the eject arm 17
0 is rotated in the direction of arrow 10 in FIG.
As a result, the eject slider 180 and the eject pin 181 are moved substantially forward. As a result, the outer peripheral edge located at the rear left portion of the CD 100 in the disk holder 40 is pressed forward, and the CD 1
00 is pushed forward from the disk holder 40. When the eject arm 170 passes through the intermediate point during the rotation in the direction of arrow G in FIG.
3 is resiliently rotated in the same direction,
Since the side surface portion 49a of the pull-in member 49 is in contact with the outer peripheral edge of the CD 100 facing the front left side and is in resistance, C
D100 is prevented from jumping out of the disk holder 40.

When the cover 30 reaches the open position, about half of the CD 100 projects from the disc holder 40, so that the user places his hand in the space between the disc holder 40 and the cover 30. The user can put the finger on the edge of the center hole 101 of the CD 100 and the outer peripheral edge of the CD 100 and take it out. As described above, the release slider 110, the eject arm 170, the toggle spring 1
73, the eject slider 180 and the eject pin 1
81 is a CD 100 held in the disc holder 40 when the lid 30 is rotated from the closed position to the open position.
Disk eject means for projecting the disc from the disc holder 40.

Next, a mechanism for mounting the CD 100 inserted in the disk holder 40 on the disk table 82 will be described.

A CD pressing member 190 is supported on the inner surface of the lid 30. The CD pressing member 190 is made of a leaf spring material and is formed in a plate shape that is substantially long in the front-rear direction.
1, 191 are integrally formed. The supported portion 19
Reference numerals 1 and 191 denote a pivot piece 1 formed by curving a portion between two slits extending in the longitudinal direction of the CD pressing member 190 downward and forming a concave arcuate shape upward when viewed from the side.
91a and 191a are formed.

Two support protrusions 33, 33 are formed on the lower surface of the cover 30 near the front end thereof and are substantially separated from each other in the left and right direction. The pivot pieces 191a, 19 of the CD pressing member 190 are formed.
1a is applied to the support projections 33, 33 from below,
In this state, as described later, the intermediate portion between the supported portions 191 and 191 of the CD pressing member 190 is fixed to the lid portion 30 so that the CD pressing member 190
The lid portion 30 is formed so as to be able to slightly rotate up and down around a contact portion between the support protrusions 91a and 191a and the support protrusions 33 and 33 as a rotation axis.
Supported by

Pressing pieces 192, 192 project substantially rearward from both side ends of the rear end of the CD pressing member 190. The rear ends of these pressing pieces 192, 192 are punched downward. Pressing protrusions 192a, 192a
Are formed.

Further, from the position separated from the front edge of the CD pressing member 190 to the left and right, the pressed pieces 193, 1
The lower ends of the pressed pieces 193, 193 are bent forward to form pressed surfaces 193a, 193a.
Is formed.

The CD pressing member 19 of the front end of the lid 30
A pressing piece 34 extends downward from a portion between the zero pressed pieces 193.

A pressing spring 194 is attached to the lid 30 below the CD pressing member 190. The holding spring 19
4 has a substantially T-shape, and a substantially central portion of the front end portion is screwed to the lid portion 30. At this time, the CD pressing member 19
The intermediate portion between the two supported portions 191 of the pair 0 is fixed to the lid with the same screws as those for fixing the pressing spring 194. Then, pressing portions 194a, 194a projecting right and left at the front end of the pressing spring 194 press the pivot pieces 191a, 191a of the CD pressing member 190 against the support projections 33, 33 of the lid 30 from below.

A portion of the presser spring 194 projecting rearward from the top of the T-shape is formed with a concave-shaped slit which opens forward, and a substantially U-shaped portion located outside the slit. 194b is a resilient portion, and the resilient portion 1
A portion 194c inside 94b is a positioning portion,
A positioning hole 194d formed in the positioning portion 194c
The position of the presser spring 194 is stabilized by fitting the positioning protrusion 35 protruding from the lower surface of the lid 30 to the
The resilient portion 194b resiliently presses a portion behind the rotation fulcrum portion 191a of the CD pressing member 190 upward, thereby causing the CD pressing member 190 to press the rear end pressing piece 192, 192 moves upward, and the lid 30
Is in contact with or close to the lower surface of the.

A control piece 200 is disposed at a position corresponding to the pressed pieces 193 and 193 of the CD pressing member 190 and the pressing piece 34 of the lid 30 in the front end of the upper plate 60.

The control piece 200 is disposed in a placement hole 69 formed at the front end of the upper surface plate 60 so as to be rotatable substantially in the front-rear direction. The control piece 200 has contact portions 201, 201 formed substantially apart from each other left and right, and a cam portion 202 is formed between the contact portions 201, 201. The cam portion 202 has a cam surface 202a that is inclined at the upper end so as to face rearward and upward.

The control piece 200 is energized by a torsion coil spring 203 such that the upper end thereof moves backward.

As described above, when the cover 30 is closed with the CD 100 inserted in the disc holder 40, the cover 30 presses the disc holder 40 downward in the process, so that the disc The holder 40 is also rotated downward together with the lid 30. Immediately before the lid 30 reaches the closing position, the disc holder 40 also reaches near the lower end of its rotation range, and the CD 100 held in the disc holder 40 has the center hole 101 of the disc 100 in the positioning projection 83 of the disc table 82. Is lightly fitted to the upper end of the. At the same time, the pressed surfaces 193a, 193a of the CD pressing member 190 contact the upper surfaces of the contact portions 201, 201 of the control piece 200 (see FIG. 23).
When the cover 30 is further rotated downward, the pressed surfaces 193a and 193a of the CD pressing member 190 are rotated.
Is relatively pushed upward by the contact portions 201, 201 of the control piece 200.
The D pressing member 190 rotates so that the rear end thereof is displaced downward against the elastic force of the pressing spring 194, and the pressing piece 19
2 and 192, the pressing projections 192a and 192a at the rear end are CDs.
The both sides of the center hole 101 of 100 are pressed downward (see FIG. 24). By this, CD1
00 is moved downward, and the opening edge of the center hole 101 is used for positioning the chucking balls 84, 84, 84 with the positioning projections 83.
Of the chucking ball 84,
The CDs 100 are placed on the disk table 82 by retracting the positioning projections 83 toward the positioning projections 83 against the resilient force biased thereon. When the CD 100 is placed on the disk table 82, the chucking balls 84, 84, 84 protrude from the positioning projections 83 by the resilient force urged against the chucking balls 84, 84, 84, and the upper opening edge of the center hole 101 of the CD 100 To hit the CD
100 is chucked on the disk table 82.

After the CD 100 is chucked on the disk table 82 as described above,
While 0 reaches the closed position, the pressing piece 34 of the lid 30 contacts the cam surface 202a of the control piece 200 and further presses the same downward, so that the upper end of the cam 202 is displaced forward. To the direction of rotation,
The control piece 200 rotates so that its upper end is displaced forward against the urging force of the torsion coil spring 203 (FIG. 2).
4, see FIG. 25), and the contact portions 201, 201 escape forward from under the pressed pieces 193, 193 of the CD pressing member 190. Thereby, the pressed pieces 193, 193
Can be further moved downward, so that the CD pressing member 190 is rotated so that the rear end thereof moves upward by the rotating force urged by the pressing spring, and the pressing projections 192a, 192a are moved from the CD 100. Separated, CD
It will not interfere with the rotation of 100. Also CD
When the center hole 101 is completely fitted into the positioning projection 83 of the disk table 82, the portion 100 moves slightly forward with respect to the disk holder 40. The eject pin 181 is separated from the eject pin 181 in the forward direction.
It does not interfere with the rotation of 00.

As described above, the CD pressing member 190, the pressing spring 194, the control piece 200, and the torsion coil spring 20
3, when the cover 30 is moved from the open position to the closed position, the CD (recording medium disk) 100 is pressed toward the disk table (disk mounting portion) 82 and the C is pressed.
D100 is mounted on the disk table 82, and constitutes a disk pressing means which is separated from the CD 100 when the lid 30 reaches the closed position.

Then, as described above, when the eject knob 140 is slid to the right, the eject operation is performed, and the lid 30 is opened, there is no longer anything to press the disc holder 40 from above. The holder 40 is rotated upward by the urging force of the extension coil springs 48,48. Accordingly, the CD 100 located in the disc holder 40 receives the upward moving force by the disc holder 40, and the opening edge of the center hole 101 moves the chucking balls 84, 84, 84 into the positioning projections 83. Withdrawing from the fitting with the positioning projection 83 while retracting. At the same time, as described above, a part of the CD 100 is projected from the disc holder 40 by the forward movement of the eject pin 181. Thus, as described above, the CD 100 can be taken out of the disc holder 40 by pinching the outer peripheral edge and the opening edge of the center hole 101 with a finger.

[0073]

As is apparent from the above description, the disk loading apparatus of the present invention is a disk recording and / or reproducing apparatus for recording and / or reproducing data on a recording medium disk, and a recording medium disk mounted on a disk mounting unit. A loading device for a recording medium disk to be mounted on a disc, comprising: a disk mounting portion on which the recording medium disk is mounted, a closing position covering the recording medium disk mounted on the disk mounting portion, and a disk mounting portion facing the outside. A lid movably provided between the open position and
When the lid is moved from the open position to the closed position, the recording medium disk is pressed toward the disk mounting portion to mount the recording medium disk on the disk mounting portion, and the lid is moved to the closed position. And a disk pressing means for separating from the recording medium disk when the recording medium reaches.

Therefore, in the disc loading device of the present invention, when the lid is moved from the open position to the closed position, the recording medium disk is mounted on the disk mounting portion by the disk pressing means. Therefore, mounting of the recording medium disk to the disk mounting portion is extremely easy. Moreover, since only the disk pressing means is provided, the structure can be simple and inexpensive.

Further, in the invention described in claim 2, the disk mounting portion is a disk table having a positioning projection fitted in a center hole of a recording medium disk at a central portion, and the positioning projection is provided on the positioning projection. Since a plurality of chucking balls are provided which are resiliently biased so as to partially protrude from the outer peripheral surface, the recording medium disk can be easily mounted on the disk mounting portion by being pressed by the disk pressing means. it can.

Further, according to the third and fourth aspects of the present invention, the recording medium disk is provided between the disk mounting portion and the lid portion, and one main surface of the recording medium disk faces outward. A disk holder that moves in a direction in which the disk holder is moved toward and away from the disk mounting portion, and the disk holder moves in a direction away from the disk mounting portion when the lid moves to the open position, and is held by the disk holder. Since the recording medium disk is detached from the disk mounting portion, the recording medium disk can be easily released from the disk mounting portion.

The shapes and structures of the respective parts shown in the above-described embodiments are merely examples of the specific embodiments to be carried out when carrying out the present invention, and the technical scope of the present invention is not limited thereto. Should not be interpreted restrictively.

[Brief description of the drawings]

FIG. 1 shows an embodiment in which the present invention is applied to a disc loading device of a CD player, and FIG. 1 is a plan view showing an entire configuration.

FIG. 2 is a schematic plan view showing the movement of the main part in the operation of inserting the CD into the disc holder together with FIGS. 3 and 4, with the lid removed, and this figure shows a state where the CD is in contact with the eject pin; It is shown.

FIG. 3 shows a state following FIG. 2;

FIG. 4 illustrates a state where insertion of a CD into a disc holder is completed.

FIG. 5 is a schematic plan view showing the movement of the main part in the operation of moving the lid from the open position to the closed position after the CD is inserted into the disk holder together with FIGS. 6 and 7, with the lid and the disk holder removed; It is a figure, and this figure shows the state where a cover part is in an open position.

FIG. 6 shows a state in which the lid is in the middle of turning toward the closing position.

FIG. 7 shows a state in which the lid has reached a closed position.

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 7;

FIG. 9 is an enlarged X view of FIG. 7;

FIG. 10 is a schematic plan view showing the movement of the main part in the operation of opening the lid together with FIG. 11 with the lid and the disc holder removed, and FIG. 10 shows the rotation of the lid toward the open position; In the middle of the process.

FIG. 11 shows a state where the lid has reached an open position.

FIG. 12 is a sectional view taken along the line XII-XII in FIG. 11;

FIG. 13 is a sectional view taken along line XIII-XIII in FIG. 11;

FIG. 14 is an enlarged plan view of a main part showing a mechanism for locking a lid to a closing position together with FIG. 15, and this figure shows a locked state.

FIG. 15 shows a state where a lock is released.

FIG. 16 is an enlarged sectional view of a main part showing a state where the lid is locked to the closed position together with FIGS. 17 and 18, and this figure shows a state before the lid reaches the closed position.

FIG. 17 shows a state immediately before the lid reaches the closing position.

FIG. 18 shows a state where the lid is locked at the closing position.

FIG. 19 is an enlarged perspective view showing a main part of a mechanism for projecting a CD from a disk holder.

FIG. 20 shows an essential part of a mechanism for mounting a CD on a disk mounting part together with FIGS. 21 and 22, and FIG. 20 is an enlarged bottom view.

21 is a sectional view taken along the line XXI-XXI in FIG.

FIG. 22 is a Y view of FIG. 20;

23 is a cross-sectional view showing an operation of mounting a CD on the disk mounting portion together with FIGS. 24 and 25, and this figure shows a state where the lid is at a position slightly before reaching the closing position.

FIG. 24 shows a state in which the lid is in a position immediately before reaching the closing position.

FIG. 25 shows a state in which the lid has reached the closing position and the CD has been mounted on the disk mounting unit.

[Explanation of symbols]

10 ... CD player (disc recording and / or reproducing device),
Reference numeral 30: lid portion, 40: disk holder, 82: disk table (disk mounting portion), 83: positioning projection, 84
... Chucking ball, 100 ... CD (recording medium disk), 190 ... CD pressing member, 194 ... Pressing spring, 20
0: control piece, 203: torsion coil spring, 190, 19
4, 200, 203 ... disk pressing means

Claims (4)

[Claims] 1. Recording on a recording medium disk and / or
Or a loading device for a recording medium disk in which a recording medium disk is mounted on a disk mounting portion in a disk recording and / or reproducing apparatus for performing reproduction, wherein: a disk mounting portion on which the recording medium disk is mounted; A lid movably provided between a closed position covering the recorded recording medium disk and an open position facing the disk mounting portion to the outside; and the lid is moved from the open position to the closed position. Sometimes, the recording medium disk is pressed toward the disk mounting portion to mount the recording medium disk on the disk mounting portion, and a disk pressing means that separates from the recording medium disk when the lid reaches the closing position. A disk loading device, comprising: 2. The disk mounting portion is a disk table having a positioning projection at a central portion to be fitted into a center hole of a recording medium disk, wherein the positioning projection is resilient so that a part thereof projects from an outer peripheral surface thereof. The disc loading device according to claim 1, comprising a plurality of biased chucking balls. 3. The recording medium disk is provided between the disk mounting portion and the lid portion, holds the recording medium disk with one main surface thereof facing outward, and moves in a direction approaching and separating from the disk mounting portion. A disc holder that moves when the lid moves to the open position, the disc holder moves in a direction away from the disc mounting section, and the recording medium disc held therein is detached from the disc mounting section. The disk loading device according to claim 1. 4. The recording medium disk is provided between the disk mounting portion and the lid portion, holds the recording medium disk in a state where one main surface thereof faces outward, and moves the recording medium disk in a direction in which the recording medium disk is separated from and attached to the disk mounting portion. When the lid portion provided with the disc holder moves to the open position, the disc holder moves in a direction away from the disc mounting portion, and the recording medium disc held therein is detached from the disc mounting portion. 3. The disc loading device according to claim 2, wherein: