JPS6371975A - Reproducing device - Google Patents

Abstract

PURPOSE:To load a case at an optional speed by rotating a lever so as to separate from a driving source when the case is inserted into a guide means and switching a switching means according to the insertion of the case with the engagement of the lever and case. CONSTITUTION:When the case 11 storing a recording medium along a guide means is inserted, a lever 16 and case 11 are engaged by an engaging means and the lever 16 is rotated so as to separate from a driving source this time. No force is therefore effected on the driving source even in case of the insertion amount being big or the insertion speed being fast and the need to protect the driving source with a limitter mechanism is therefore eliminated. Owing to the lever 16 being rotated in its pull-in direction by the driving source with the switching of a switching means 20 thereafter, the inserted case 11 is automatically pulled in the lever 16 and fitted to the device position automatically.

Description

[Detailed description of the invention]

[Field of Industrial Application] The present invention relates to a playback device, and more particularly, the present invention relates to a playback device, in which a recording medium is housed in a case, and the recording medium is mounted in a predetermined mounting position while being in the case, so that at least a playback operation is performed. The present invention relates to a device configured to perform the following steps.

[Summary of the invention]

In the present invention, when a case containing a recording medium is inserted into the guide means at the mounting position, the lever for retracting the case is rotated away from the drive source, and the lever and the case are engaged by the engaging means. In addition, as the case is inserted, the switch means is switched so that the drive source rotates the lever in the retraction direction, so that when the case is inserted a predetermined amount or more, is adapted to be automatically pulled into the mounting position by a lever via an engaging means. KPrior Art 1 A device is provided in which a disk-shaped recording medium such as an optical disk is housed in a case, and the disk-shaped recording medium is attached to the main body of the device while remaining in the case to perform a playback operation. Are known. In such an Hl, when a case containing a disk is inserted into a predetermined position, this is detected and the case is automatically pulled in by a retracting means. When drawing such a disk-shaped recording medium together with a case, for example, a rack and a binion are used.A rack is formed in the case, and a binion provided on the device side is engaged with this rack. I tried to draw him in. [Problems to be Solved by the Invention] According to such a conventional structure for retracting a recording medium in a case, it is necessary to insert the recording medium in such a manner that the rack and the binion are properly engaged with each other. In addition, when pushing in strongly twice so as to have a speed faster than the retracting speed, a limiter is required to absorb the excess force, which has the disadvantage of complicating the mechanism. The present invention was made in view of these problems, and allows the operator to insert a case containing a recording medium at a speed of his or her choice, and there is no restriction on the amount of insertion. Another object of the present invention is to provide a reproducing device that has a mounting mechanism that does not require a limiter mechanism to absorb even if the pushing speed increases. Means for Solving Problem K] The present invention stores a recording medium in a case, and at least performs a playback operation by mounting the recording medium in a predetermined mounting position while remaining in the case. In the device according to the present invention, a guide means provided at the mounting position;
comprising a lever for pulling the case into the mounting position along the guide means, a drive source for rotating the lever, an engagement means for engaging the lever and the case, and a switch means; When the case is inserted into the guide means, the lever is rotated away from the drive source, and the lever and the case are engaged by the engagement means, and furthermore, when the case is inserted, the lever is rotated away from the drive source. Accordingly, the switch means is switched so that the drive source rotates the lever in the retracting direction. K Effect: Therefore, according to the present invention, when the case containing the recording medium is inserted along the guide means, the lever and the case are engaged by the engaging means. At this time, the lever is rotated away from the drive source. Therefore, even when the insertion amount is large or the insertion speed is high, no force is exerted on the drive source, and therefore there is no need to protect the drive source with a limiter mechanism. After this, the switch means is switched and the drive source rotates the lever in the retracting direction, so that the inserted case is automatically retracted by the lever and is automatically installed in the installation position. become. K Embodiment FIG. 1 shows a reproducing apparatus according to an embodiment, in which an optical disk 10 constituting a recording medium is housed in a flat case 11 made of synthetic resin. The case 11 is mounted at a mounting position 13 formed on the holding plate 12 with the disc 10 still housed therein. Guide rails 14 are provided on both sides of the mounting position 13. Further, a support lever 16 is disposed above this WW position 13, and is rotatably supported by a fulcrum pin 17. Further, the lever 16 is urged to rotate in the time S1 direction about the fulcrum pin 17 by a coil spring 18. A bent piece 19 is formed at one end of the retraction lever 16, and the bent piece 19 rotates the operator 21 of the switch 20 to perform moxibustion. Further, a motor 22 is arranged near the switch 20, and a pinion 23 is fixed to the output shaft of the motor 22. The pinion 23 is in transmission with a cam gear 27 via gear wheels 24, 25, 26. A first cam 28 is formed on the upper surface of the cam gear 27, and the outer peripheral portion of the first cam 28 is in contact with a pin 29 implanted in the retraction lever 16. Further, an engagement link 31 is connected to the other end of the retraction lever 16 via a pin 30. A pressed portion 32 is formed on this link 31, and an engagement pin 33 is connected thereto. This bottle 33 can be engaged with an engagement recess 34 of the case 11. Moreover, in the state before engagement, the lever 16 and the link 31 are held in place by the coil spring 3 so as to be located within the recess 35 of the guide rail 14.
They are connected by 6. A slide plate 40 shown in FIGS. 3 and 4 is disposed below the holding plate 12. As shown in FIGS. The slide plate 40 is provided with three long holes 41, and the bottle 4 installed in the holding plate 12 can be inserted into the slide plate 40.
2 so as to be movable in the longitudinal direction of the elongated hole 41. Further, a lever 43 is arranged on the upper part of the slide plate 40, and is supported so as to be rotatable about a fulcrum pin 44. The lever 43 is connected to the slide plate 40 via a connecting pin 45. Furthermore, this lever 43 is equipped with a bin 46 at an intermediate position,
It is adapted to engage with a second cam groove 47 formed on the lower surface of the cam gear 27. Also slide plate 4
Four inclined cams 48 are provided on the lower surface of the 0 at approximately corner positions thereof. Corresponding to these cams 48, four rectangular openings 50 are formed in the intermediate plate 49 disposed below the cams. Further, a chassis 51 is disposed below the four intermediate plates. In the above configuration, when the case 11 containing the optical disk 10 is inserted between the left and right rails 14 at the device z position 13 as shown in FIG. It comes into contact with the pressed portion 32 of the engagement link 31 . The engagement pin 33 of the link 31 is placed in the recess 35 of the rail 14 by the spring 36, but when the link 31 is pushed by the tip of the case 11, the lever 16 is rotated counterclockwise. , the link 31 moves upward and the engagement pin 33 engages the engagement recess 3 of the case 11.
4. At the same time, the tip of the case 11 pushes the lever 16 via the link 31, so the lever 16 is rotated counterclockwise about the fulcrum pin 17 against the coil spring 18 as described above. become. The amount of rotation of the lever 16 at this time is determined by the amount of insertion of the case 11. In FIG. 1, when the retraction lever 16 is rotated counterclockwise about the pin 17 against the coil spring 18,
One of the bent pieces will be separated from the operator 21 of the switch 20. This causes switch 20 to be switched and motor 22 to begin its rotation. The rotation of the motor 22 is transmitted to the cam gear 27 via the pinion 23 and gears 24, 25, and 26, and the cam gear 27 rotates slowly. Then, the circumferential surface of the first cam 28 provided on the upper surface of the gear A727 comes to push the bottle 29. Since the bottle 29 is installed on the underside of the lever 16,
From then on, the lever 16 is rotated by the cam 28. As shown in FIG. 2, this counterclockwise rotation of the lever 16 is transmitted to the link 31 via the pin 30, and the link 31 moves upward. Therefore, the case 116 having the four parts 34 that engage with the pin 33 of the link 31 moves in the same direction, so that the case 11 is automatically pulled into the mounting position 13 while being guided by the guide rail 14. Become. That is, when the case 11 containing the optical disc 10 is manually inserted into the mounting position 13, it is automatically pulled in by the lever 16 to the position shown in FIG. When the case 11 is retracted to the position shown in FIG. 2, the holding plate 12 is lowered. To explain this operation, when the force 1\gear 27 rotates to a predetermined angle, the second cam 47 formed on the lower surface of the gear 27 moves the lever 43 shown in FIG. It will have to be rotated. This rotation causes the slide plate 40 to move downward in FIG. 3. Then, the inclined cam 48 provided on the lower surface of the slide plate 40 changes from the state shown in FIG. 4 to the state shown in FIG. 5, and enters into the opening 50 while sliding on the intermediate plate 49. As a result, the holding plate 12 supporting the slide plate 40
The case 11 attached to the attachment position 13 on the holding plate 12 also comes to be lowered. Case 11 in which optical disc 10 is stored in this manner
will be correctly installed in the predetermined position. Note that the operation of removing the case 11 from the mounting position is performed in the opposite manner to the above operation, and first the slide plate 40 is moved back by the second cam groove 47 of the cam gear 27 via the lever 43, thereby holding the case 11. a212 rises from the state shown in FIG. 5 to the state shown in FIG. After this, when the cam gear 27 further rotates, the first cam 28
Due to the rotation of the coil, the retraction lever 16 is rotated clockwise, and this spring 18
The case 11 is pushed out in the direction opposite to the insertion direction by the elastic restoring force. This results in the state shown in FIG. 1, and it becomes possible to hold multiple cases 11 containing optical discs 10 by hand. According to the conventional case retraction structure consisting of a rack and a pinion, consideration must be given to accurately aligning the position of the pinion in the standby state, or to correct misalignment by deflection. Additionally, the speed of insertion is usually determined by the speed of the mechanism and motor, and operating at higher speeds may destroy the drive mechanism. Furthermore, if the case is pushed in the opposite direction by hand during ejection, the retraction mechanism will become strained. Alternatively, the ejection mechanism will continue to perform the ejection operation forever. However, according to the device according to the present embodiment, if the case is pushed in by hand during ejection, the cam rotates and the operation moves to retracting the case again, so that no force is applied to the drive unit. Case 11: A person who operates roughly operates at the speed he or she likes.
Even if the lever 16 is pushed in, the lever 16 only rotates in a direction away from the cam 28 of the cam gear 27, and in this case, the spring 18 only extends, so that no force is applied to the drive section. Also, at this time, since the switch 20 is arranged so as to escape from the lever 16, the switch 20
The 0 constraint also disappears. In addition, there is no need to adjust the speed at the time of insertion or a limiter mechanism to absorb excess speed, making it possible to configure the retraction Rh% mechanism simply and compactly, making it highly reliable. It becomes possible to provide a playback device. K Effects of the Invention As described above, in the present invention, when the case is inserted into the guide means, the lever is rotated away from the drive source, and
The lever and the case are engaged by the engagement means, and when the case is inserted, the switch means is switched so that the drive source rotates the lever in the retracting direction. Therefore, with such a configuration, it becomes possible to freely attach the case to the attachment position at a desired speed, and there is no need for a limiter mechanism.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the main parts showing the case insertion operation by a playback device according to an embodiment of the present invention, FIG. 2 is a plan view of the case when retraction is completed, and FIG. 3 is a plan view of the case lifting mechanism. A plan view, FIG. 4 is a longitudinal cross-sectional view of the main part showing the case in the raised position, and FIG. 5 is a longitudinal cross-sectional view of the main part showing the case in the lowered position. In addition, in the symbols used in the drawings, 10... Optical disc 11... Case 13... Mounting position 14... Guide rail 16... Retraction lever 20... Switch 21... Operator 22... - Motor 27...Cam gear 28...First cam 31...Engagement link 33...Engagement pin.

Claims (1)

[Claims] In an apparatus in which a recording medium is housed in a case, and the recording medium is mounted at a predetermined mounting position while remaining in the case to perform at least a playback operation,
A guide means provided at the mounting position, a lever for pulling the case to the mounting position along the guide means, a drive source for rotating the lever, and engaging the lever and the case. It has an engagement means and a switch means, and when the case is inserted into the guide means, the lever is rotated away from the drive source, and the lever and the case are engaged by the engagement means. 2. A playback device characterized in that the switch means is switched as the case is inserted, and the drive source rotates the lever in the retracting direction.