JPH04105853U - disc playback device - Google Patents

Abstract

(57) [Summary] [Purpose] In a changer-type disc playback device that allows the disc to be replaced by ejecting the tray during playback,
To prevent a tray from coming into contact with a disc being played due to warping of the tray. [Structure] Support ribs 50, 51, 52 and hooks 53, 54 are fixedly arranged on a mechanical chassis 40 in a playback device main body 28. Further, ribs 58 and 59 are formed on both sides of the opening 38 at the tip of the tray 26 through which the reproducing unit 29 enters and exits, and a guide surface 60 is formed on the lower surface of the center of the tray 26. When the tray 26, which is warped downward, is stored in the playback device main body 28, the support ribs 50, 51, and 52 come into contact with the lower surface of the tray 26 to prevent the tray 26 from warping downward. Furthermore, when the tray 26 that is warped upward is stored, the hooks 53 and 54 come into contact with the upper surfaces of the ribs 58 and 59 of the tray opening 38 to prevent the tray 26 from warping upward.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is a changer that can set multiple discs on a rotating table. For disc playback devices, it is now possible to eject the tray and replace discs during playback. If the tray is warped and you put it in and take it out while playing a disc, This prevents the tray from coming into contact with the disc being played.

0002

[Conventional technology]

Conventionally, a rotary table was placed on the tray to load multiple discs at the same time. Disc playback devices are known that are capable of continuous playback. conventionally In this type of disc playback device, when changing discs, the playback must be stopped, and the tray 12 must be ejected while the disc is being played. The disk could not be replaced.

0003 Therefore, in order to solve the drawbacks of such conventional devices, the present applicant has proposed an application. The disc playback device described in the specification and drawings of Japanese Patent Application No. 1-124681 is proposed. It is being proposed. FIG. 2 is described therein as an example. tray 26 is moved in the direction of arrow A with respect to the playback device main body 28, and is stored and ejected. tray A rotary table 30 is mounted on 26 so as to be rotatable in the direction of arrow B. times On the rotation table 30 there are a plurality of discs (herein, Five disk holding portions 34 are formed. The disc holding part 34 is here. has a groove 34a for 12 cm CD and a groove 34b for 8 cm CD. disc retention The portion 34 has a cutout 36 for inserting a playback unit facing toward the outer circumference of the rotary table 30. It is formed by An opening 38 is formed in the center of the rear end of the disk tray 26. is connected to the notch 36 of the disc holder 34 at that position, so that it can be played again in the playing state. The raw unit 29 is pulled out from here to enable the tray 26 to be discharged.

0004 At the center of the rear end of the mechanical chassis 40 inside the playback device main body 28, there is a playback unit 2. A holder 42 equipped with a turntable and a playback head as 9 is located below the tray 26. As shown by arrow C, it is rotatably supported around a rotating shaft 44 . Also, mechanical The chassis 40 has a disc crank located above the tray 26 and facing the turntable. A pad 46 is fixedly installed. The holder 42 and the disc clamper 46 are mounted on a disc. A mounting mechanism 45 is configured.

[0005] Rotate the holder 42 upward with the tray 26 stored in the playback device main body 28. Then, the turntable and playback head rise to the disk holding section 3 at the playback position. It is inserted into the notch 36 of 4A. As a result, disc 1 is placed on the turntable. It is then pulled up from the disk holding part 34A and is held by the disk clamper 46. is clamped. In this state, the playback head can perform playback. Reclamation letter When the disc eject operation is performed in the Since the tray 26 is pulled out horizontally from the main body of the playback device while continuing playback, the tray 26 is The disk can be replaced by pulling it out from 28.

[0006]

[Problem that the idea aims to solve]

Since the tray is a large molded product, it is prone to warping, and it may start out as a small warp. However, the warpage may increase over time. And the said patent application Hei 1-12468 Like the disk playback device described in the specification and drawings of No. 1, the tray 26 is not moved during playback. When ejecting to enable disk replacement, the sides of the tray opening 38 are warped. This tends to occur, and if there is a large warp, it is difficult to insert or remove the tray 26 during playback. As shown in FIG. 3, when the tray 26 comes into contact with the disc 1 being played, This may damage disc 1 or cause the sound to skip.

[0007] This idea was made in view of the above points, and was designed to eject the tray during playback. In an autochanger-type disc playback device that allows discs to be replaced, When you insert or remove the tray while playing a disc with a warped tray, the tray may become warped. This is intended to prevent the disc from coming into contact with the disc being played.

[0008]

[Means to solve the problem]

This invention enabled disc conversion by ejecting the tray during playback. In a playback device, the tray is arranged along the storage and ejection direction of the tray inside the playback device main body. , when moving the tray in the storing direction, the upper part of the tray is also warped. or engage downward or both upward and downward to regulate the vertical position of this tray. The device is equipped with vertical position regulating means.

[0009]

[Effect]

According to this invention, a means for regulating the vertical position of the tray is provided within the main body of the playback device. and move the tray in the storage direction to remove the warped tray. Or engage downward or both upward and downward to define the vertical position of this tray. Even if the tray is severely warped, it will not affect the disc being played. Contact is prevented, and damage to the disc and sound skipping are prevented.

0010

【Example】

An embodiment of this invention will be described below. Figure 1 shows a disk to which this invention was applied. FIG. 3 is a plan view showing the internal structure of the playback device in a tray ejected state. Also, Figure 4 5 is a side view thereof, and FIG. 5 is a perspective view of the vertical position regulating means of the tray. Said Figure 2 The same reference numerals are used for parts common to . The tray 26 is connected to the playback device main body 28. It moves in the direction of arrow A to be stored and discharged. A rotary table 30 is placed on the tray 26. It is attached rotatably in the direction of arrow B. The center of rotation is on the rotary table 30. A plurality of (five in this case) disk holding parts 34 that hold the disk 1 around the disk 32. is formed. The disc holding part 34 has grooves 34a and 8 for a 12cm CD. A groove 34b for cmCD is provided. The disc holding section 34 is for inserting a playback unit. A notch 36 is formed toward the outer circumferential direction of the rotary table 30. Discto An opening 38 is formed in the center of the rear end of the tray 26, and the opening 38 is formed in the center of the rear end of the tray 26. The reproducing unit 29 is connected to the notch 36 of the disk holding portion 34A and the reproducing unit 29 is in the reproducing state. This allows the tray 26 to be ejected.

[0011] As shown in FIG. A reproduction device equipped with a disk motor 70, a turntable 31, and a playback head 33. The holder 42 holding the raw unit 29 rotates around the rotating shaft 44 as shown by arrow C. It is rotatably supported. In addition, the mechanical chassis 40 includes a turntable 31 and A disk clamper 46 is fixedly installed opposite to the disk clamper 46 . Holder 42 and disc The ramper 46 constitutes the disk mounting mechanism 45.

0012 With the tray 26 stored in the playback device main body 28, the holder 42 is driven by a motor or the like. When rotated upward by force, the turntable 31 and playback head 33 rise, It is inserted into the notch 36 of the disc holder 34A at the playback position. This allows the disk The disc 1 attached to the disc holder 34A is placed on the turntable and It is pulled up from the disk holding part 34A and clamped by the disk clamper 46. be done. In this state, reproduction can be performed by the reproduction head 33. In play mode, When the disc ejection operation is performed, the regeneration unit 29 releases water from the notch 36 and the opening 38. Since the tray 26 is removed in a square direction, the tray 26 is removed from the main unit 28 of the playback device while continuing playback. You can pull it out and replace the disc.

[0013] On the mechanical chassis 40, a plus plate is provided as means for regulating the vertical position of the tray 26. Supporting ribs 50, 51, 52 and hooks 53, 54 made of ticks, metal, etc. Fixedly placed. Further, hooks 53 and 5 are provided on both sides of the opening 38 of the tray 26. Ribs 58 and 59 that engage with the tray 26 are formed along the storage and ejection direction A of the tray 26. ing. Further, a guide surface 60 protruding downward is formed on the lower surface of the center of the tray 26. has been done.

[0014] The support ribs 50 and 51 provide support when the tray 26 is stored in the playback device main body 28. This portion 56 engages with the lower surface of the left and right positions 56 and 57 of the opening 38 of the tray 26. , 57 from downward warping. Further, the hooks 53 and 54 are connected to the tray 26. When stored in the playback device main body 28, the left and right ribs 5 of the opening 38 of the tray 26 8, 59 from above to restrain upward warpage of these portions 56, 57. Ru. Further, the support rib 52 is provided with a guard when the tray 26 is stored in the playback device main body 28. engages with the side surface 60 from below to restrain the downward warpage of the central part of the tray 26 do.

[0015] Note that the tip portions 50a, 51a, 52a of the support ribs 50, 51, 52, the rib 58 , 59 and the tip 60a of the guide surface 60 are each tapered. The tray 26 is formed in a flat surface, making it easy to store the tray 26 into the playback device main body 28. This realizes a transition to an engaged state.

[0016] The tray ejection and storage operations of the disc playback device having the above configuration will be explained. de If the tray eject operation is performed during disc playback, disc 1 will be removed as shown in Figures 1 and 5. The tray 26 is ejected in a state where it has been reproduced by the reproduction unit 29. Rotate in this state Discs on the disc holder 34 other than the disc playback position on the table 30 Exchanges can be made.

[0017] When you complete the disc exchange and perform the tray storage operation, the tray 26 is inserted into the main body of the playback device. It will be stored in 28. This results in a The support ribs 50, 51 engage with the lower surfaces of both side portions 56, 57 of the tray opening 38. This prevents the downward bending of these parts 56 and 57 from hitting the reproduction unit, etc. Regulate to position. Also, the hooks 53 and 54 are attached to the ribs 58 and 59 on both sides of the tray opening. It engages with the upper surface and restrains the upward warping of the parts 56 and 57, thereby preventing the device from being regenerated. It is regulated at a position where it does not hit the disc or the playback unit 29. Furthermore, the support rib 52 It engages with the guide surface 60 to restrain the central portion of the tray from warping downward. These people The combined state is shown in FIG. 8 as a view taken along the line DD in FIG. However, in FIG. If no bending occurs, the support ribs 50, 51, 52 and hooks 53, 54 are There is no contact with the tray 26 with a small gap, eliminating unnecessary friction when the tray 26 is moved in and out. This prevents the occurrence of Then, when upward warping occurs, the hooks 53, 54 When the support ribs 50, 51, 52 engage with the tray 26 and bend downward, the support ribs 50, 51, 52 It engages with the ray 26.

[0018] As mentioned above, since the vertical position of each part of the tray 26 is regulated, Even if the tray 26 is warped, the vertical position of the tray 26 is in the correct position as shown in Figure 9. be stored in the playback device main body 28 without coming into contact with the disc 1. This prevents damage to the disc 1, skipping, etc.

[0019] Note that when the tray is ejected during disc playback, the rotary table 30 does not rotate. It is said that it is impossible to convert. Also, when tray ejection is performed during non-reproduction (at this time, all (the disc has been removed from the turntable and is placed on the tray 26) is placed on the rotating table. The cable 30 is rotatable so that all disc holders 34 can be rotated. Exchange is possible. The rotation of the rotary table 30 is prevented by, for example, an electrically driven rotor. This can be done using a lock mechanism.

[0020]

[Example of change]

The means for regulating the vertical position of the tray is not limited to the one shown in the above embodiment. Prevent the tray from coming into contact with parts of the playback device or the disc being played due to warping. Various shapes for effective prevention can be arranged at various positions.

[0021] In the above embodiment, the case where this invention was applied to a CD player was shown, but It can also be applied to other disc playback devices.

[0022]

[Effect of the idea]

As explained above, according to this invention, there is a tray inside the main body of the playback device in the vertical direction. By providing a position regulating means and moving the tray in the storing direction, the top of the tray can be Since it engages downward to restrict the vertical position of this tray, Even if the ray is severely warped, it will be prevented from coming into contact with the disc being played. This prevents disc damage and skipping.

[Brief explanation of drawings]

FIG. 1 is a diagram illustrating an embodiment of this invention, and is a plan view with a tray ejected.

FIG. 2 is a perspective view showing a conventional disc playback device.

FIG. 3 is a side view showing a conventional disc playback device in which a tray comes into contact with a disc during a storage operation when the tray is warped.

4 is a side view of the disc playback device of FIG. 1. FIG.

5 is a perspective view of the vertical position regulating means of the disc playback device of FIG. 1. FIG.

6 is a plan view showing the tray storage state of the disc playback device of FIG. 1. FIG.

FIG. 7 is a side view of FIG. 6;

8 is a view taken along the line DD in FIG. 7. FIG.

9 is a side view illustrating a state when a storage operation is performed when the tray is warped in the disc playback device of FIG. 1. FIG.

[Explanation of symbols]

1 disc 26 Tray 30 Rotary table 31 Turntable 33 Playback head 34 Disc holding part 34A Disc holder at disc playback position 36 Notch 38 Opening 45 Disc mounting mechanism 46 Disc clamper 50, 51, 52 Support ribs (vertical position regulating means) 53, 54 Hook (vertical position regulating means)

Claims (1)

[Scope of utility model registration request] Claims 1: A tray that is moved relative to the main body of the apparatus to be stored and ejected, a rotary table rotatably attached to the tray, and a plurality of disks formed around a rotation axis on the rotary table. a holding part; a playback unit having a turntable and a playback head provided in an apparatus main body separately from the tray; and a notch formed in the disc holding part so that the turntable and playback head can be inserted therein; , a disc mounting mechanism for mounting a disc held in one of the disc holders onto the turntable with the tray stored in the apparatus main body, and a notch in the disc holder at the disc playback position, communicating with the disc mounting mechanism; an opening formed in the tray so that when the tray is ejected in a disc playback state, the playback unit is pulled out through the notch of the disc holder and the opening of the tray; In a disc playback device that enables tray ejection, the tray is arranged along the storage and ejection direction of the tray within the playback device main body, and the tray is warped when the tray is moved in the storage direction. A disc playback device comprising a vertical position regulating means that engages downwardly or both vertically to regulate the vertical position of the tray.