JP2667902B2 - Disc or cassette ejection mechanism - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a mechanical ejection device for a disk or a cassette, and is particularly suitable for use in an optical disk drive device.
The present invention relates to a device for mechanically discharging a disk or a cassette when power is not supplied to the device due to a system down or the like.

[Conventional technology]

Conventionally, this type of device is a mechanical means (gard motor) for engaging one of the gears as described in Japanese Patent Application Laid-Open No. 58-85966.
Is provided to ensure automatic control of the insertion and / or ejection of the cassette or disc.

[Problems to be solved by the invention]

In the above conventional technology, only the motor is used as the driving force for ejecting the cassette or the disc, and there is no description about the disc ejection (this function is hereinafter referred to as EEJ) when power is not supplied when the system is down. However, when the system was down, there was a problem in protection and storage of recording and reproduction media. Also, there is no description about miniaturization of the drive unit, and no consideration is given to the point of making the device half-height.Therefore, the device may not be able to be housed in the system. there were.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the above-mentioned disadvantages of the prior art and to realize an EJ apparatus in which the compatibility of apparatuses by half height is taken into consideration.

[Means for solving the problem]

The above object is achieved by transmitting a rotational driving force of a motor (an embodiment reference numeral 5) to a rotational driving force transmission unit (a first transmission unit) (an embodiment reference numeral 7, 8, 9) and a moving force transmission unit (a second transmission unit). Disc or cassette ejecting mechanism, which is transmitted to a mounting portion (discriminating reference numeral 4) of a disc or a cassette via a transmission portion (reference numeral 15) so that the placing portion can be ejected from the apparatus. A transmission system disconnecting means (one embodiment reference numerals 10 and 11) is provided, and at least when the motor output is OFF, the displacement operation of the transmission system disconnecting means causes the motor to reach the second transmission portion. Disconnect the coupling of the transmission system
This is achieved by a configuration in which the second transmitting unit is moved by the second external force in the disconnected state and the mounting unit is discharged out of the apparatus.

[Action]

The first and second transmission units convert the rotational driving force of the motor into linear motion or the like and transmit the linear driving force to the mounting unit. The transmission system disconnecting unit disconnects a predetermined part of the transmission system from the motor to the second transmission unit by the displacement. The second transmission unit is connected to the mounting unit and moves by the second external force to move the mounting unit.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS.

In FIGS. 5, 7, and 8, reference numeral 1 denotes a frame of an apparatus for driving or reproducing an optical disk or a cassette containing the optical disk and supporting a recording medium. This frame 1
Rollers 2a and 2b are provided on both sides, and the rollers 2a hold a lower end portion of a moving plate 3 that transmits a driving displacement of a disk or a cassette, and a groove for horizontally moving vertically while holding the cassette. It holds a pocket 4 having a 4a and a contour 4b. The other roller 2b passes through a horizontal groove 3a that restricts the movement of the moving plate 3 in the horizontal direction. The lower part of the frame 1 has a motor 5, a worm gear 6, a worm wheel 7, a spur gear 8, a pinion 9, a plate 10, a cam 10, as shown in FIGS. A unit plate 13 on which the long piece member 12 is mounted is fixed with screws 14 or the like.

The moving plate 3 is provided by fixing a rack 15 shown in FIGS. 1, 3 to 6 with screws 16 as shown in FIG. 5, and as shown in FIGS.
Rollers 3b that contact the inclined grooves 4c of the pockets 4 are provided on both side surfaces thereof.

As shown in FIG. 3, the pocket 4 has an iterator 17 for holding the cassette 16 and the cassette 16 has an
7 shows a state when the motor 5 is held, and is provided with a switch 18 for generating a signal for starting the motor 5 and the like, an inclined groove 4c for restricting vertical movement after horizontal movement, and a vertical groove 4b.

The structure of the members mounted on the unit plate 13 is
As shown in FIG. 6, a motor 5 serving as a driving force 4 for ejecting a disk or a cassette is fixed with a screw 19, the worm 6 is fixed to the shaft thereof, and the worm wheel 7 is arranged so as to engage. The spur gear 8 and the pinion 9 are mounted on the plate 10, the plate 10 is engaged with the unit plate 13 so as to rotate about the rotation center of the spur gear, and the spur gear 8 is arranged so as to mesh with the worm wheel 7 pinion 9. . The plate 10 is provided with a counterclockwise turning power by a spring 20, one end 10 a of which abuts against the outer diameter portion 11 a of the cam 11, holds the position in the turning direction, and at the same time the pinion 9 is Deploy so that it engages with rack 15.

The cam 11 has an outer diameter 11b having a different diameter from the center of rotation of the outer diameter portion 11a than the outer diameter portion 11b.
Is brought into contact with one end 10a of the plate 10 and the pinion 9 is placed in the rack 1
It has come to be able to cut the mesh from 5. Then cam 1
When 1 further rotates in the counterclockwise direction, the claw 11c provided on the cam 11 comes into contact with the pin portion 15a of the rack 15 and pushes it out in the forward direction to obtain the state shown in FIG. Further, the rotation of the cam 11 is pushed forward by the spring (2) 21 and
21a shows the hole 2 in the front panel 22 of the drive device shown in FIG.
If it is pushed backward by the tip of a screwdriver or the like from 2a and then stopped by the screwdriver, the spring (2) 21
The cam 11 has a stud 11d that slides and abuts on the cam 11 as shown in FIGS. 1 and 6, and the groove has a groove 12b. Further, the long piece member 12 is engaged with the longitudinal groove 13a of the unit plate 13 for regulating the longitudinal movement thereof by the stud 12c.

With the above structure, the end 12a of the long piece member 12 shown in FIGS. 1 and 6 is pushed rearward through the hole 22a of the front panel 22 of the drive device shown in FIG. 2 by a driver or the like to rotate the cam 11 counterclockwise. And play is rotated counterclockwise to rack 15
The pinion 9 is disengaged from the pinion 9 and the rack 11 is moved forward by the rotation of the cam 11, and the moving plate 3 and the pocket 4 are moved forward (to the state shown in FIGS. 8 to 7). The disk or cartridge can be ejected from the drive device.

The structure of the members mounted on the unit plate 13 is added to FIGS. 9 to 12 as an embodiment of this type.

In each drawing, the frame 1, the moving plate 3, and the pocket 4 are engaged with each other by rollers, grooves, etc. as in the previous embodiment, and the rack 15 (not shown) is fixed to the moving plate 3 and the rear portion of the frame 1 is provided. And a worm 6, a worm 6, a worm wheel 7, and a spur gear 8 meshing with a pinion 9 as a driving force for ejecting a disk or a cassette. 1, 6 and 10) is rotated to engage with the rack 15 and the pinion 9, but in this example, the long piece member 12 is moved rearward by an external operation as in the previous example, and the cam 11 is moved. The motor 5 and the worm are rotated counterclockwise to abut against it.
6, the rotating plate 23 that rotates about an arbitrary point on which the worm wheel 7 is mounted is rotated clockwise, and the spur gear 8
After connecting with the cam 11, the cam 11 is further rotated and then the moving plate 3
Is directly pushed forward by the claw 11c of the cam 11 to mechanically eject the disk or cassette.

Another embodiment of the present invention will be described with reference to FIGS. 13 and 14. FIG. 13 corresponds to FIG. 1, and FIG. 14 corresponds to FIG. Other configurations are the same as those shown in FIGS. 2, 7, and 8, and the same reference numerals denote the same components.

The structure of the members mounted on the unit plate 13 is the first
As shown in FIGS. 3 and 14, the motor 5 serving as a driving force for ejecting the disk or the cassette is fixed with the screw 19, the worm 6 is fixed to the shaft thereof, and the worm wheel 7 is arranged so as to engage. The spur gear 8 and the pinion 9 are mounted on the plate 10, the plate 10 is engaged with the unit plate 13 so as to rotate about the rotation center of the spur gear, and the spur gear 8 is arranged so as to mesh with the worm wheel 7 pinion 9. . The plate 10 is provided with a counterclockwise turning power by a spring 20, and the stud 10a at one end thereof is brought into contact with the outer diameter portion 11a of the groove of the cam 11 to maintain the position in the rotation direction and at the same time Install so that the pinion 9 engages with the rack 15.

The cam 11 has an outer diameter 11b in which the outer diameter portion 11b of the groove has a diameter different from the center of rotation of the groove 11b, and the outer diameter 11b is brought into contact with the one end stud 10a of the plate 10 by the initial rotation so that the pinion 9 The rack 15 is designed so that it can engage with it. Next, when the cam 11 rotates further counterclockwise, the cam 11
The claw 11c provided on the abutment 11 comes into contact with the pin portion 15a of the rack 15 and pushes it forward, as shown in FIG. Further, the rotation of the cam 11 is pushed forward by a spring (2) 21, and one end 21a is pushed backward by a tip of a driver or the like through a hole 22a of a flannel panel 22 of the drive device shown in FIG. When the pushing is stopped, the long piece member 12 which returns to the original position by the restoring force of the spring (2) 21 and the stud 11b which slides and abuts on the cam 11 as shown in FIGS. The long piece member is provided with a groove 12b.
Further, the long piece member 12 is engaged with the longitudinal groove 13a of the unit plate 13 for regulating the longitudinal movement thereof by the stud 12c.

With the above construction, the cam 11 is rotated counterclockwise by pushing one end 12a of the long piece member 12 shown in FIGS. 13 and 14 rearward from the hole 22a of the front panel 22 of the drive device shown in FIG. 2 with a driver or the like. And play is rotated counterclockwise to the rack
15 and the pinion 9 are disengaged from each other, and the rack 11 is moved forward by the rotation of the cam 11, so that the moving plate 3,
The pocket 4 is moved to the front (in the state shown in FIGS. 8 to 7), and the disk or cartridge can be mechanically ejected from the drive device.

〔The invention's effect〕

ADVANTAGE OF THE INVENTION According to this invention, the apparatus main body is miniaturized by transmitting the driving force of the motor by a worm, a worm wheel, a spur gear, a binion, and a rack. Since the disc or cartridge stored in the storage medium can be ejected, there is an effect that protection, storage, and destruction of the recording and reproduction media can be prevented.

[Brief description of the drawings]

FIGS. 1, 2, 6, 7, and 8 show sketches of an embodiment of the present invention. FIGS. 1 and 6 are plan views of main parts thereof, FIG. 2, and FIG. FIG. 6, FIG. 7, and FIG. 8 show perspective views of the whole. 3, 4 and 5 are schematic views showing an embodiment of the present invention, FIG. 3 is a plan view thereof, FIG.
The figure shows a sectional view thereof. 9, 10, 11, and 12 show plan views according to another embodiment of the present invention. FIG. 13 and FIG. 14 are plan views of main parts of another embodiment of the present invention. 1 Frame 2a, 2b Roller 3 Moving plate 4 Pocket 4a Pocket groove 4b Pocket outer shape 4c Pocket inclined groove 5 Motor 6 Warm 7 Warm Wheel 8 ... Spur gear 9 ... Pinion 10 ... Plate 10a ... Plate stud 11 ... Cam 11a, 11b ... Cam outer diameter 11c ... Cam nail 11d ... Cam stud 12 ... Long piece Member 12a: One end of long piece 12b: Groove of long piece 12c: Stud of long piece 13: Unit plate 13a: Groove of unit plate 14: Screw, 15: Rack 16: Cassette , 17 ... spring 18 ... switch 1, 19 ... screw 20 ... spring 21 ... spring (2) 22 ... front panel 22a ... hole in front panel

 ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kuniyuki Kimura 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Hitachi Works, Ltd. Yokohama factory (56) Reference JP-A-61-255555 (JP, A)

Claims (4)

(57) [Claims] 1. A mounting portion (disc) for a disk or a cassette for rotating the motor (5) through a rotation driving force transmitting portion (first transmitting portion) and a moving force transmitting portion (second transmitting portion). 4), and a disc or cassette ejecting mechanism capable of ejecting the mounting portion from the device, wherein a transmission system disconnecting means is provided, and at least when the motor output is OFF,
By the displacement operation of the transmission system disconnecting means, the coupling of the transmission system from the motor to the second transmission section is disconnected, and the second
An ejecting mechanism for a disc or a cassette, wherein the second transmitting portion is moved in the separated state by the external force to eject the placing portion to the outside of the apparatus. 2. The transmission system separating means applies a displacement to the first transmitting portion by a displacement operation of the transmission system separating means, separates the second transmitting portion from the first transmitting portion, and 2. The disc or cassette ejecting mechanism according to claim 1, wherein the second transmitting portion is moved by the external force of the device in the separated state to eject the placing portion out of the apparatus. 3. The transmission system disconnecting means displaces at least a fixed position of the motor by a displacing operation of the transmission system disconnecting means, disconnects the transmission system in the first transmission unit, and sets the transmission system in the disconnected state. 2. The disk or cassette discharging mechanism according to claim 1, wherein the second transmitting section is moved by the second external force while the second mounting section is moved out of the apparatus. 4. The transmission system disconnecting means comprises a structure for separating the second transmitting part from the first transmitting part by displacement and a structure for applying a second external force to the second transmitting part. The disk or cassette ejecting mechanism according to claim 2, which has the above-mentioned configuration.