JP2861799B2 - Recording medium device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium device, and more particularly, to a recording medium device that stores a recording medium and makes it possible to reproduce or record.

[0002] This type of apparatus is provided with an emergency discharge mechanism that allows a recording medium to be taken out of the apparatus by manual operation from the outside in the event of a power failure or the like.

It is desirable that the emergency discharge mechanism be operable with a small force.

[0004]

2. Description of the Related Art A conventional emergency discharge mechanism is disclosed in
As shown in -286467, when operated from the outside, a configuration in which an external operating force is transmitted to a motor that is a drive source of a disc loading mechanism, that is,
The configuration was such that the motor was the load.

[0005]

For this reason, the operation from the outside becomes heavy, and it is necessary to perform the operation with a strong force, and there has been a problem that it is difficult to carry out the operation smoothly.

Accordingly, an object of the present invention is to provide a recording medium device which has solved the above-mentioned problems.

[0007]

According to the present invention, there is provided a support member for supporting a recording medium, wherein the support member is movably provided between a support position for supporting the recording medium and a non-support position for not supporting the recording medium. A movable base, an electrically driven drive source, and a movable position between a first position and a second position. When the movable base is moved to the first position, the movable base is moved to a support position. A movable base moving means for moving the movable base to an unsupported position when the movable base is moved to the second position; and a driving force transmission path for transmitting a driving force of the driving source to the movable base moving means. When the driving force transmission path forming means and the movable base moving means are located at the first position and the movable base is located at the support position, the movable base is manually moved to the non-support position. Move to The emergency operation device operates when operated to operate the driving force transmission path forming means to cut off a part of the driving force transmission path and move the movable base moving means to the second position. It is configured to include an arm.

[0008]

When the emergency arm operates, a part of the transmission path of the driving force is cut off, so that the movement when the movable base moving means moves to the second position does not reach the driving source. Acts to prevent transmission.

[0009]

【Example】

[Schematic Configuration and Operation] As shown in FIGS. 1 to 7, a CD-ROM device 1 according to an embodiment of the recording medium device of the present invention.
0 denotes a chassis 11, a base 12 attached to the chassis 11, a movable base assembly 13 attached to the base 12, and a tray 14 supported by the base 12.
A disk loading drive mechanism assembly 15 mounted on the base 12, a clamper 16 supported on the base 12, a front bezel 17 mounted on the front surface of the chassis 11, and a cover member (not shown) covering the upper side. ).

The movable base assembly 13 comprises a movable base body 19, a turntable 20, a turntable motor 21 for rotating the turntable 20, and an optical head 2.
2, and an optical head moving mechanism 23 for moving the optical head 22 is attached.

When a CD-ROM is loaded, the CD-ROM
The ROM device 10 is in the state shown in FIG.

Namely, the tray 14 is moved to the Y ₂ direction, protrudes out from the CD-ROM device body 25. Further, the movable base assembly 13 is inclined downward.

An operator places the CD-ROM 26 on the tray 14 and performs a predetermined operation.

Thus, the CD-ROM loading drive mechanism assembly 15 starts operating, and the following two operations are sequentially performed.

The tray 14 is moved in the Y ₁ direction.

As a result, as shown in FIG.
The D-ROM 26 is pulled into the CD-ROM device main body 25.

Subsequently, the movable base assembly 13 is turned in a direction in which it becomes horizontal.

As a result, as shown in FIG.
The D-ROM 26 is supported by the turntable 20, rises above the tray 14, is clamped by the clamper 16, and becomes ready for reproduction.

[Configuration of Part Related to Loading and Reproduction of CD-ROM] (Base 12) As shown in FIGS.
Has a substantially square frame shape, has a movable base assembly mounting portion 30 made of substantially rectangular opening, in the Y ₂ direction end side, a CD-ROM loading drive mechanism assembly mounting portion 31 made of cut-out Have.

The base 12 has rising walls 32 and 33 on the X ₁ and X ₂ direction ends, and has rising ribs 34 on the Y ₁ direction ends.

The base 12 is mounted with the four cut-out legs 35 floating above the bottom plate 11a of the substantially box-shaped chassis 11 via the insulator 36, and is accommodated in the chassis 11. .

Tray guide members 37 and 38 are mounted on the base 12 at the X ₂ and X ₁ end sides as described later.

[0023] base 12, the tray pushing plate 39 in the X ₂ end side is provided to be movable in Y _1, Y ₂ direction.

The tray pushing plate 39, by a spring 40, is biased in the Y ₂ direction.

(Movable Base Assembly 13) As shown in FIGS. 1 to 5, the movable base assembly 13 has a movable base body 19 having a substantially rectangular frame shape.

[0026] Y ₂ direction end side of the movable base body 19, the motor 21 is mounted turntable. The turntable 20 is fixed to the spindle of the motor 21. Turntable 20 is located from the movable base body 19 upward (Z ₁ direction). Turntable 2
0 incorporates a permanent magnet 20a.

On the lower surface side of the movable base body 19, a pair of guide shafts 50, 51 are held in parallel at both ends by holding portions 52, 53, extending in the Y ₁ , Y ₂ directions and attached in parallel. ing.

The optical head 22 is supported on the guide shafts 50 and 51 on both sides, and is movably provided in the opening 54 of the movable base body 19 in the Y ₁ and Y ₂ directions.

The movable base body 19 is provided with an optical head moving mechanism 23. Optical head moving mechanism 23
Comprises a motor 55 and a gear mechanism 56 driven by the motor 55.

The movable base assembly 13, the Y ₁ direction end side of the movable base body 19, via the leaf spring member 56 is attached to the Y ₁ direction end side of the base 12, mounted in the mounting portion 30 In addition, the leaf spring member 56 can be rotated in the directions A and B in FIG. 3 by bending.

[0031] the Y ₂ side end of the movable base body 19,
At the center in the X ₁ and X ₂ directions, a pin 57 is provided so as to protrude in the Y ₂ direction.

The pin 57 is connected to the base 12 as described later.
Pressed against the leaf spring member 42 is attached to the Y ₂ direction end beam portion 41 in the vicinity.

(Tray 14) As shown in FIG. 5, the tray 14 is a dish-shaped CD-ROM on which a CD-ROM is placed.
Mounting has a portion 60, and, on both sides of the arm portions 61 and 62 extending in the Y ₁ direction, and the beam portion 63 connecting the arms 61, 62
And an opening 64 at the center where the turntable 18 and the optical head 22 fit.

Further, the tray 14 has elongated flanges 65 and 66 which are lowered by one step along the X ₁ and X ₂ side ends, respectively.

As shown in FIG. 9, the tray 14, the X ₁ end side, has a Kaido groove 67 and projection 68.

Further, the tray 14, the rear surface of the X ₂ direction in the guide groove 69, the rack 70 of the gear surface, the convex portion 71,
It has contact surfaces 71a, 71b and an engaging portion 73.

The arm 62 is provided near the engaging portion 73,
A hole 74 is formed.

As shown in FIGS. 2 and 1, the tray 14 has the guide groove 67 fitted to the triple projections 75 _-1 to 75 _-3 of the tray guide member 38, and the guide groove 68 The guide members 37 are fitted to the triple projections 76 _{-1 to} 76 _-3 , guided on both sides, and the flange 65 is connected to the triple holding arms 77 _{-1 to} 77-1 of the tray guide member 38. _-3 , and the flange 66 is pressed by the triple pressing arms 78 _{-1 to} 78 _-3 of the tray guide member 37, and both sides are pressed, and can slide in the Y ₁ and Y ₂ directions. is there.

The tray 14 is detachable CD-ROM 26, the discharge position P ₁ shown in FIG. 8 (A), CD-R
The storage position P ₂ shown in FIGS. 8B and 8C and FIGS. 1 and 2 for storing the OM 26 in the main body 25 of the CD-ROM device.
Sliding between.

The rack 70 is engaged with a gear 96 described later.

(CD-ROM Loading Driving Mechanism Assembly 15) As shown in FIGS. 7, 6, 1 and 2, the assembly 15 has a base plate 90 for supporting each component.

[0042] The base plate 90 is in the X ₁ direction near side, Yes and the loading motor 91 as a driving source is mounted, the X ₂ direction near side, Yes and gears 92-96 and the rotation base 97 is attached, Y A slider 100 as a movable base moving means is attached to _one end in _one direction.

The gears 92 to 96 constitute a reduction gear mechanism. The gears 93 and 95 are two-stage gears. A gear 96 at the last stage of the reduction gear mechanism is engaged with the rack 70 described above. The gear 93 and the gear 96 are supported by pins 101 on the base plate 90. A collar 104 is rotatably fitted to a shaft 103 fixed to the pulley 102, and a gear 92 is fixed above the shaft 103.

The collar 104 is located in an elongated opening 105 formed in the base plate 90. The elongated opening 105 extends in a direction away from the pin 101. At the end of the elongated opening 105 is a circular opening 105
a is formed.

Reference numeral 106 denotes an emergency arm,
It is attached to the lower surface of the base plate 90 so as to be rotatable around a pin 107, and is urged counterclockwise by a spring 108. U-shaped notch 10 of arm 106
6a is a ring-shaped groove 104 on the outer periphery of the collar 104.
It is fitted to the part below a.

The collar 104 is normally pushed by the arm 106 and is located at a position (fixed position) Q ₁ behind the elongated opening 105, and the groove 104 a is formed in the elongated opening 105.
Is engaged with the edge of the sea.

Thus, the gear 92 meshes with the gear 93.

The rotation base 97 has a hole
And the locking claw 97b is attached to the base plate 9
0 is engaged with the arcuate slit 109 of the base plate 90 and the lug 11
0, and is rotatably provided while the lifting from the base plate 90 is restricted. The rotation base 97 is
It has a gear portion 97d along an arc centered on the hole 97a. The rotation base 97 is fitted with the pin 111 to support the gear 94, and the rotation base 97 is fitted with the pin 112 to
5 are supported.

The gear 94 meshes with the gear 93. Gear 95 meshes with gear 94 and gear 96.

Further, the arm guide 11 is attached to the arm guide mounting portion 97e of the rotating base 97 which is formed by a pair of rising pieces.
3 is attached.

The slider 100 has a pair of locking claws 10.
0a and 100b are connected to the slit 1 of the base plate 100.
14 and 115 so as to be slidable in the X ₁ and X ₂ directions.

The slider 100 is mounted on the rack 100
c, which mesh with the gear portion 97d.

Here, a pulley 116, a belt 117, a pulley 102, gears 93 to 96, a rotation base 97, a gear 97d, a rack 100c, and a pusher 106 described later.
d and the like constitute a driving force transmission path forming means.

The slider 100 is mounted on the rising wall 10.
0d. In the rising wall portion 100d, an oblong slot 1
00e is formed.

A belt 117 is stretched between the pulley 116 of the motor 91 and the pulley 102 on the lower surface side of the base plate 90.

Reference numeral 118 denotes a tray lock arm which has a pair of locking projections 118a, 118b and a locking projection 118c, and has a hole 118d fitted and attached to a pin 119 on the base plate 90. , Is torsionally urged by a torsion coil spring 120 in a counterclockwise direction.

As shown in FIG. 1 and FIG. 2, the assembly 15 having the above-described structure
, And mounted in the mounting portion 31 in FIG.

The gear 96 is engaged with the rack 70. Further, the pin 57 is fitted in the oblong slot 100e.

Here, the CD-ROM device 10 moves the tray 14 from the discharge position P ₁ to the storage position P ₂ by rotating the gear 96 by 360 degrees or more, for example, about 1.3 times, as described later. The diameter D of the gear 96
₁ is about 31 mm, which is smaller than the conventional one.

Therefore, in FIG. 1, the planar size L _X × L _Y of the assembly 15 is smaller than that of the conventional one.

(Clamper 16 and related parts)
5, FIG. 1, FIG. 3, and FIG.
A circular iron plate 130 is fixed on the upper surface, and is held by a clamper stopper 133 fixed to the clamper holder 131 at a central opening 132 of the clamper holder 131.

The clamper holder 131 has a rectangular shape, and is attached between the rising walls 32 and 33 on both sides of the base 12.

(Front Bezel 17) As shown in FIG. 5, the front bezel 17 has an opening 140,
0, crap 141, emergency hole 142,
It has operation buttons 143 and the like, and is attached to the chassis 11.

[0064] (Other) locking protrusion 118c and the arm guide 113 of the tray locking arm 118, turning base locking mechanism for locking the rotation base 97 to position U ₁ 15
0. Protrusions 71 of the two locking projections 118a, 118b and the tray 14 of the tray locking arm 118 constitute a mechanism 160 for locking the tray 14 to the position P _2.

(CD-ROM loading operation)
The operation of the CD-ROM device 10 having the above configuration will be described.

The operation will be described with the state of FIG. 8A as the first state.

In the first state, each part is in the state described below.

The slider 100 is located at a position S ₁ which is a second position slid in the X ₁ direction.

The rotation base 97 is in the rotation position U shown in FIG.
Located at ₁ .

The locking projection 118c shown in FIG. 11 locks the arm guide 113, the rotation base lock mechanism 150 is in the ON state (see FIG. 10E), and the rotation base 97 is rotated.
It is locked to the rotational position U _1, is limited to rotation in the counterclockwise direction.

The tray 14 is located at the discharge position P ₁ , and the CD-ROM mounting section 60 is exposed outside the apparatus main body 25.

[0072] the tray lock mechanism 160 is in the OFF state, the tray 14 is movable in Y ₁ direction.

[0073] movable base assembly 13 is positioned in the non-supporting position V ₁ which is inclined obliquely downward.

(CD-ROM storage operation)
The ROM 26 is mounted on the CD-ROM mounting section 60, and the operation button 143 is pressed.

As a result, as shown in FIG.
The motor 91 starts and rotates forward.

The rotation of the motor 91 is transmitted at a reduced speed via the belt 117 → pulley 102 → gear 93 → gear 94 → gear 95, and the gear 96 rotates clockwise. Rotation base 97 because it is locked and maintained in position U _1.

[0077] A rack 70 by rotation of the gear 96 is driven, the tray 14, as shown in FIG. 10 (D), begins to move in the arrow Y ₁ direction.

When the gear 96 rotates about 1.3 times, the tray 14
Is moved to a position P _2, CD-ROM 26 is housed in the apparatus body 25.

(CD-ROM Clamping Operation) Tray 14
But in the process of moving from the position immediately before the position P ₂ to the position P _2, the following two operations are performed.

As shown in FIG. 12, the contact surface 72 of the projection 71 of the tray 14 contacts the locking arm 118 b of the tray lock arm 118 and pushes it, and the tray lock arm 118 resists the spring 120. And rotated clockwise.

As a result, the projection 118c is disengaged from the arm guide 113, and the rotation base lock mechanism 150 is turned off as shown in FIG.

When the tray lock arm 118 rotates clockwise, similarly, as shown in FIG. 12, the locking protrusion 118a faces the contact surface 71b, and the locking protrusion 118
a and 118b face the end of the protrusion 71 of the tray 14 in the Y ₁ and Y ₂ directions, and sandwich the protrusion 71.

As a result, as shown in FIG.
The tray lock mechanism 160 turns on.

When the rotation base lock mechanism 150 is turned off, the rotation base 97 can rotate counterclockwise.

[0085] By the tray lock mechanism 160 is turned on, the tray 14 is moved in the Y ₁ direction and the Y ₂ direction is restricted, the gear 96 will not rotate further.

The motor 91 continues to rotate forward.

As a result, the gear 95 starts rolling around the gear 96, and the rotation base 97 rotates counterclockwise as shown in FIG.

The rotation base 97 has an arc-shaped slit 109.
Within the range of ( ₂ ), as shown in FIG.

[0089] By the rotation base 97 is rotated as described above, the gear portion 97d drives the rack portion 100c, the slider 100, as shown in FIG. 13 and FIG. 10 (B), the in direction X ₂ slides to the position S _2, which is the first position.

[0090] When the slider 100 is slid in the X ₂ direction,
The inclined elongated hole 100e pushes up the pin 57, and the movable base assembly 13 is rotated in the direction A as shown in FIG. Eventually, a state in which the horizontal long opening portion 100e _-1 end of the inclined slot 100e guides the pin 57, the movable base assembly 13 is pivoted to the supporting position V ₂ of the horizontal shown in FIG. 3 .

In the final process of moving the movable base assembly 13 to the position V ₂ , the turntable 20
The CD-ROM 26 is slightly lifted from the CD-ROM mounting portion 60 of the tray 14 while supporting the vicinity of the center hole of the M26.

The clamper 16 is connected to the turntable 20.
The CD-ROM 26 is clamped by the clamper 16 on the turntable 20 and is supported.

[0093] When the CD-ROM 26 is clamped on the turntable 20, i.e., when the slider 100 which slides to the position S ₂ of the switch 169 in FIG. 1
Is operated, and the motor 91 stops as shown in FIG.

Thus, the loading of the CD-ROM 26 is completed.

Subsequently, the motor 21 is started, and the CD-RO
M26 is rotated and reproduced by the optical head 22.

Here, as shown in FIG. 14, the movable base assembly 13 is rotated to the horizontal position V ₂ , as shown in FIG.
The pin 57 hits the leaf spring 42 and the tip is
As shown by, the pin 57 is elastically pushed down, so that the pin 57 does not rattle with respect to the horizontal slot 100e- ₁ .

As described above, since the movable base assembly 13 is fixed at the center position in the X ₁ and X ₂ directions on the distal end side and without any backlash, the movable base assembly 13 is fixed. 13 is stably supported by the base 12. Therefore, reproduction of the CD-ROM 26 is also performed stably.

The operation of unloading and discharging the CD-ROM 26 is performed by the reverse rotation of the loading motor 91 and the operation of each mechanism in the reverse order to the above-described loading.

That is, the operation is performed as follows.

The rotation base 97 rotates clockwise,
The slider 100 is slid in the X ₁ direction, the movable base assembly 13 is pivoted to the position V _1. Thereby, CD-ROM
26 is placed on the tray 16 with the clamp released.

When the rotation base 97 rotates to the position U ₁ , the tray lock arm 118 rotates counterclockwise as shown in FIG. 15, the rotation base lock mechanism 150 turns on, and the tray lock mechanism 160 Turns off.

[0102] Tray 16 is a Y ₂ direction, is moved to the position P _1.

Thus, the D-ROM 26 becomes a CD-ROM.
It is discharged out of the apparatus main body 25.

[0104] When the tray 14 is moved to the position P _1,
The protrusion 68 presses the switch 171 and the motor 91 stops.

Further, as shown in FIG. 11, when the engaging portion 73 of the tray 14 is locked by the locking projection 118b, the tray 14 is prevented from coming out.

If necessary, the top plate of the main body of the CD-ROM device is removed, a screwdriver is inserted into the hole 74, the locking projection 118b is pushed, and the tray lock arm 118 is rotated clockwise. The engagement portion 73 is unlocked, and the tray 14 can be pulled out from the main body 25 of the CD-ROM device.

[CD-ROM Emergency Ejection Mechanism] FIGS. 16 and 17 are views of the CD-ROM loading drive mechanism assembly 15 of FIG. 6 as viewed from below. FIG. 16 shows a normal state. FIG. 17 shows the state during the CD-ROM emergency ejection operation.

As shown in FIGS. 17 and 16, the emergency arm 106 has an arm portion 106b, an arm portion 106c, and a pushing portion 106d in addition to the notch portion 106a. The arm 106 b is located at a position facing the emergency hole 142 of the front bezel 17. The pushing part 106d is formed at the entrance of the U-shaped notch 106a. The arm portion 106c is provided such that the rotation locus 172 around the pin 107 is outside the locking claw portion 106b.

[0109] Also, in the final stage of the tray 14 reaches to the position P ₂ by moving the Y ₁ direction, the lower surface of the projecting portion 173 of the tray 14 (see FIG. 9) is the start-up pieces 39a of the tray pushing plate 39 contact, as shown in FIG. 1, and a tray pushing plate 39 is moved dimension a in the Y ₁ direction.

[0110] Thus, the tray 14 is in a state of being biased in Y ₂ direction by the spring 40.

When performing emergency ejection of a CD-ROM,
The operator manually operates the rod member 174 as shown in FIG.
Into the CD-ROM device 10 through the hole 142.

Thus, the arm 106 is connected to the rod member 17.
4, the arm 106b is pushed, and is rotated clockwise in FIG. 7 and counterclockwise in FIG. 16 against the spring 108. The arm 106 is rotated to the state shown in FIG.

As the arm 106 rotates, the following two operations are performed.

The pushing portion 106 d pushes the collar 104, and moves the collar 104 from the position Q _{1 at} the back of the elongated opening 105 toward the outlet and to the position Q ₂ .

As a result, the gear 92 is separated from the gear 93, and the engagement of the gear 92 with the gear 93 is released.

The movement of the collar 104 from the position Q ₁ to the position Q ₂ is accompanied by a slight extension of the belt 117. Arm 106c is engaged with the locking claw portion 100b, it pushes it to the X ₁ direction. Thus, the slider 100 is slid in the X ₁ direction from the position S _2, which is the first position to the position S ₁ is the second position.

When the slider 100 slides, the following operation is performed.

[0118] First, the sliding of the slider 100, the movable base assembly 13 is rotated to the position V ₁ in the B direction in FIG. 3, it is obliquely downward.

The turntable 20 moves down, and the CD-RO
M26 is unclamped and the turntable 2
0 is released and the tray 14 is supported by the CD-ROM mounting portion 60.

[0120] In addition, the position S slider 100 in the X ₁ direction
By sliding to _1, as shown in FIG. 15, the rotation base 97 is rotated to the position U ₁ in the clockwise direction. When the rotation base 97 is rotated to the position U _1, rotates in the counterclockwise direction by the tray locking arm 118 spring 120, locking portion 118a is disengaged from the abutment surface 71b, the tray lock mechanism 160 is released Is done.

When the tray lock mechanism 160 is released,
By the spring force of the spring 40 to which the tray 14 is extended,
Pushed by the tray pushing plate 39 is moved in the Y ₂ direction, it is extruded only out CD-ROM device body 25 dimension a of the gripping margin.

Thereafter, the operator grabs the tray 14 protruding from the CD-ROM device main body 25 and pulls it, so that the tray 14 is moved to the CD-ROM device main body 25.
And the CD-ROM 26 is ejected.

Here, when the tray 14 is pushed out by the spring 140, the movement of the tray 14 is performed while rotating the gear 96 by the rack 70.

Here, since the gear 92 is separated from the gear 93 and the meshing of the gear 92 with the gear 93 is released, the following effects are obtained.

The pushing force of the rod member 174 is small.

When rotating the rotation base 97 to the position U ₁ , the gear 95 rolls around the gear 96. At this time, the rotation of the gear 95 is transmitted from the gear 94 to the gear 93, but is not transmitted to the gear 92. That is, the rotation of the gear 95 is not transmitted to the stopped loading motor 91, and the loading motor 91 does not become a load. Therefore, the rotation of the rotation base 97 is performed with a remarkably small force as compared with the case where the rotation is performed while rotating the loading motor 91.

As a result, the force for pushing the rod member 174 is
Compared to the case where the loading motor 91 is stopped while being rotated, the size can be made much smaller, and the operation for emergency ejection of the CD-ROM can be smoothly performed with good workability.

Even when the spring 40 is weak, the tray 14 can be reliably pushed out.

The movement of the tray 14 in the Y ₂ direction is performed by the rack 70 while rotating the gear 96. Here, since the rotation of the gear 96 is not transmitted to the loading motor 91, the rotation load of the gear 96 is small. Therefore, even if the spring 40 is weak, the tray 14 is reliably pushed out. The tray 14 can be pulled out with a light force.

As described above, since the rotational load of the gear 96 is small, the tray 14 is pulled out with a small force. Also,
The tray 14 can be pulled out without forcibly running the stretched belt 117.

After pulling out the tray 14, the bar member 174 is pulled out.

When the bar member 174 is pulled out, the emergency arm 107 returns to the original position shown in FIG.

[0133] Thus, as shown in FIG. 16, push portion 106d moves away from the collar 104, collar 104 by the tension of the belt 117 is returned to its original position Q _1.

As a result, the gear 92 which has been disengaged by the gear 93 approaches the gear 93 and meshes with the gear 93 again.

Since the gear 92 approaches the peripheral surface of the gear 93 and meshes with the gear 93, the gear 92 is smoothly meshed with the gear 93.

Here, even if the tops of the teeth of the gear 92 come into contact with the tops of the teeth of the gear 93, and the teeth do not mesh with each other, the gear 93 is rotated by the motor 91 by the loading operation. When the gears are started, the teeth immediately mesh with each other normally, and the gear 92 is securely engaged with the gear 93.

[Mounting Structure of Clamp Holder 131] FIG.
As shown in FIG. 8, a cut-out portion 180 is formed on the base wall side of the rising wall portion 32 of the base 12.

At the top of the rising wall portion 32, an arc-shaped convex portion 181 is provided at the center, and arc-shaped convex portions 182, 18
3, and convex portions 184 and 185 are formed.

The other rising wall portion 33 has the same configuration as described above.

One end of the clamper holder 131 has a bent flange 190, an opening 191 at the center, and cut-off portions formed on both sides thereof, and elastic portions 192 and 193 which can be elastically deformed. Further, the cut-and-raised piece 1 formed on the flange 190 is cut and raised inside.
94.

The other end of the clamper holder 131 has the same shape as described above.

[0142] clamper holder 131, by pressing the Z ₂ direction, FIG. 19, as shown in FIG. 20, the position regulating fitted between the protrusions 184 and 185, the startup walls 32, 33 And the flange 190 faces the outer side surface of the rising wall portion 32, and the cut-and-raised piece 194.
Are engaged with the notches 180, and the elastic portions 192 and 193 are attached to the outer surfaces of the rising wall portions 32 so as to face each other.

As shown in FIG. 21A, the cut-and-raised piece 194 is engaged with the notch 180.

As shown in FIG. 21B, the elastic piece 19
2, 193 are elastically deformed, and each has an arc-shaped convex portion 182,
183.

As shown in FIG. 21C, the rising wall 3
A gap 19 is provided between the top of
There are five.

Accordingly, the clamper holder 131 is mounted in a state where the rising wall portion 32 is elastically held between the cut-and-raised pieces 194 and the elastic portions 192 and 193.

As shown in FIGS. 20 and 21A, the opening 191 is fitted in the arc-shaped convex portion 181, and the edge 191a of the opening 191 is in contact with the convex portion 181.

For this reason, for example, the beam portion 41 of the base 12
Due to the downward force W acting on the rising wall 3
As shown by the two-dot chain line in FIG. 21 (A), the rising wall portion 32 is limited from inclining inward even when it is about to incline inward. Thereby, the notch 18
0 is prevented from coming off the cut-and-raised piece 194.

[Tray Guide Member Mounting Structure] FIG.
23, the tray guide member 3
7 is provided on the elongated body 200 with three projections 76 _-1 and 7-1.
6 _-2 and 76 _-3 are provided at intervals.

[0150] Each projection 76 _-1, 76 _-2, corresponding to 76 _-3, pressing arms 78 _-1, 78 _-2, 78 _-3 is provided.

The main body 200 has an L-shaped cross section, and includes a base portion 200a and a rising wall portion 200b.

The member 37 further comprises two engaging pieces 201,
202, respectively,_-1, 76 _-2And the corresponding parts
To have. The engagement pieces 201 and 202 are connected to the base 200a.
It protrudes more to the side.

The member 37 further includes three convex steps 203,
The 204 and 205, respectively projections 76 _-1, 76 _-2, has a portion corresponding to 76 _-3. The protruding steps 203 to 205 project sideways from the rising wall 200b.

The member 37 further functions as a third engagement portion.
It has a hook portion 206. The hook part 206 is a base part
Of the 200a, the protrusion 76_-2, 76_-3Part between
, Y _TwoArm with a relatively long length b extending in the direction
206a and the claw 206b at the tip of the arm 206a
Become. The arm 206a is Z₁, Z_TwoDirection.

As shown in FIG.
, Openings 211, 212, and 213 are formed from the base body 210 to the rising wall 33. Opening 211 and 213, protrusions 76 _-1 respectively the tray guide member 37, 76 _-2, is provided in an arrangement corresponding to the arrangement of 76 _-3.

The base body 210 has openings 211 and 21
2 has overhang portions 214 and 215.

Each of the openings 211, 212, and 213 has notches 216, 217, and 218 in the portion of the rising wall 33.

The opening 212 has an edge 219.

Further, a preliminary opening 220 is formed in the base body 210 near the edge 219.

[0160] The tray guide member 37 having the above-described structure is provided with a Z ₂
In the direction of FIG.
1 and 212, and the convex steps 203, 204, 205
Are fitted in the openings 211 and 212, respectively, and the claw portions 206b are fitted in the preliminary openings 220. The base portion 200a abuts on the base body 210 without being lifted from the upper surface thereof, and the rising wall portion 200b is raised. and contact with the inner surface 33, after this, by an operation of sliding the Y ₂ direction, 24, 25, FIG. 26 (a), (B) ,
As shown in (C), it is attached to the base 12.

That is, the engagement pieces 201 and 202 are inserted under the overhang portions 214 and 215, respectively,
03, 204, and 205 are cutout portions 216, 217,
218 is engaged with the tray guide member 37 is pressed against the upper base body portion 210, and is and limited displacement in the Y ₂ direction.

The arms 207 and 208 supporting the engagement pieces 201 and 202 are provided at the edges 21 and 212 of the openings 211 and 212, respectively.
The tray guide member 37 is pressed against the inner surface of the rising wall 33.

The claw portion 206b comes out of the preliminary opening 220 with the bending of the arm portion 206a, gets over the portion 223, fits into the opening 212, and locks the edge 219.
The tray guide member 37 is restricted displacement in the Y ₁ direction.

[Modification] The present invention can be applied to loading of a recording medium other than a CD-ROM and a recording medium other than a disk.

[0165]

As described above, according to the present invention,
When the movable base is manually moved to the non-support position, the drive source is separated, so that the movable base moving means is moved to the second position without operating the drive source, Therefore, the load on the operation of the emergency arm can be reduced, so that the manual operation can be performed smoothly with a small force.

[Brief description of the drawings]

FIG. 1 shows a CD-ROM device according to an embodiment of the present invention.
It is a top view shown assuming that a tray is transparent.

FIG. 2 is a front view showing the CD-ROM device of FIG. 1 with a front bezel removed.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a sectional view taken along line IV-IV in FIG.

5 is an exploded perspective view of the CD-ROM device of FIG. 1 (a CD-ROM loading drive mechanism assembly is omitted).

FIG. 6 is a plan view showing the CD-ROM loading drive mechanism assembly shown in FIG. 1;

FIG. 7 is an exploded perspective view showing the CD-ROM loading drive mechanism assembly of FIG. 6 as viewed from an arrow VII.

FIG. 8 is a diagram illustrating a CD-ROM loading operation of the CD-ROM device of FIG. 1;

FIG. 9 is a perspective view showing a state where the tray is turned upside down.

10 is a CD-R of each part of the CD-ROM device of FIG.
It is a figure explaining operation at the time of OM loading operation.

FIG. 11 shows a CD-ROM loading drive mechanism.
FIG. 4 is a diagram showing a state before the start of a D-ROM loading operation.

FIG. 12 is a diagram showing a state when the tray has moved to a storage position.

FIG. 13 is a diagram illustrating a state in which the rotation base is rotated after the tray is moved to the storage position.

FIG. 14 is a diagram showing a state where the movable base assembly has been rotated to a horizontal position.

FIG. 15 is a diagram illustrating a state immediately after a CD-ROM ejection operation is started.

FIG. 16 is a bottom view of the CD-ROM loading drive mechanism assembly.

FIG. 17 is a diagram illustrating a CD-ROM emergency ejection operation.

18 is an enlarged view showing the clamper holder and the base in FIG. 5 in association with each other.

FIG. 19 is a diagram showing a state in which the clamper holder is attached to the base.

FIG. 20 is a plan view showing a state where the clamper holder is attached to the base.

FIG. 21 is a cross-sectional view showing a state where the clamper holder is attached to a base.

FIG. 22 is a diagram showing a tray guide member and a base in FIG. 5 in association with each other.

FIG. 23 is a view showing a tray guide member in FIG. 22;

FIG. 24 is a perspective view showing a state where a tray guide member is attached to a base.

FIG. 25 is a sectional view taken along the line XXV-XXV in FIG. 24;

FIG. 26 is a sectional view showing a state where the tray guide member is attached to the base.

[Explanation of symbols]

REFERENCE SIGNS LIST 10 CD-ROM device 11 chassis 12 base 13 movable base assembly 14 tray 15 CD-ROM loading drive mechanism assembly 16 clamper 17 front bezel 19 movable base body 20 turntable (supporting member) 20 a permanent magnet 21 turntable motor 22 Optical head 23 Optical head moving mechanism 25 CD-ROM device main body 26 CD-ROM 30 Movable base assembly mounting portion 31 CD-ROM loading drive mechanism assembly mounting portion 32, 33 Rising wall portion 34 Rising rib 35 Arm portion 36 Insulators 37, 38 Tray guide member 39 Tray push-out plate 40 Spring 41 Beam part 42 Leaf spring member 50, 51 Guide shaft 52, 53 Holding part 54 Opening 55 Motor 56 Gear mechanism 56 Leaf spring member 57 Pin 60 CD-R M mounting portion 61 arm portion 63 the beam portion 64 opening 65, 66 flange portion 67 Kaido grooves 68 protrusions 69 guide groove 70 the rack 71 protrusions 71a, 71b contact surface 73 engaging portion 74 hole 75 _-1, 75 _-3, 76 _-1 to 76 _-3 protrusion 77 _-1 to 77 _-3, 78 _-1 to 78 _-3 presser arm portion 90 the base plate 91 a loading motor (drive source) 92 to 94 gear 95 gear 96 gear 97 rotates Base 97a Hole 97b Claw portion 97c Arc-shaped slit 97d Gear portion 97e Arm guide mounting portion 100 Slider 100a, 100b Locking claw portion 100c Rack portion 100d Rising wall portion 100e Inclined long hole 100e _-1 Horizontal long hole portion 101 Pin 102 Pulley 103 axis 104 collar 105 slender opening 105a circular opening 106 emergency arm 106a U-shaped notch 1 6b, 106c U-shaped arm portion 106d U-shaped push portion 107 pin 108 spring 109 arc-shaped slit 110 cut-and-raised lug 111, 112 pin 113 arm guide 114, 115 slit 116 pulley 117 belt 118 tray lock arm 118a, 118b, 118c Locking protrusion 119 Pin 120 Torsion coil spring 130 Circular iron plate 131 Clamper holder 132 Opening 133 Clamper holder 140 Opening 141 Flap 142 Emergency hole 143 Operation button 150 Rotation base lock mechanism 160 Tray lock mechanism 169 Switch 170 Arrow 171 Switch 172 Rotation Locus 173 Projection 174 Bar member 180 Notch (first engagement portion) 181, 182, 183 Arc-shaped protrusion 184, 185 Convex 190 Fold Bending flange 191 Opening 192, 193 Elastic portion 194 Cut-and-raised piece 195 Gap 200 Body 200a Base 200b Standing wall 201, 202 Engagement piece 203, 204, 205 Convex step 206 Hook 206a Arm 206b Claw 207, 208 Arm 210 Base body 211, 212, 213 Opening 214, 215 Overhang 216, 217, 218 Notch 219 Edge 220 Preliminary opening 221, 222 Edge

Claims (1)

(57) [Claims] A movable base having a support member for supporting a recording medium, the movable base being movably provided between a support position for supporting the recording medium and a non-support position for not supporting the recording medium; A driving source driven by the first and second positions, and a movable source is provided between the first position and the second position. When the movable base is moved to the first position, the movable base is moved to the supporting position, and the movable base is moved to the second position. A movable base moving means for moving the movable base to an unsupported position when moved, a driving force transmission path forming means for forming a driving force transmission path for transmitting a driving force of the driving source to the movable base moving means, When the movable base moving means is located at the first position and the movable base is located at the support position, when the movable base is to be manually moved to the non-support position. And an emergency arm for operating the driving force transmission path forming means to cut off a part of the driving force transmission path and for moving the movable base moving means to the second position. A recording medium device comprising: