JPS6387644A - Disk holder - Google Patents

Abstract

PURPOSE:To reduce a space required for movement of a tray and prevent slip of a disk on the moving tray by linearly moving the tray and allowing the tray to clip and bear the outside peripheral part of a disk at three points in the disk thickness direction. CONSTITUTION:A disk holder 2 is provided with a rectangular parallelepiped- shaped housing 3, into which a top plate, side plates, and a bottom plate are assembled, and six plate-shaped trays 6 which bear disks 5 on respective principal surfaces and are freely moved along principal surfaces linearly to project disks 5 from a disk projection aperture part 3a of the housing 3. The tray 6 has three clipping parts 6a-6c which clip the outside peripheral part of the disk 5, which the tray 6 bears, in the disk thickness direction. Thus, the space required for movement of trays is narrower in comparison with a conventional disk holder where trays are rotated and moved, and disks on moving trays do not slip.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to a disc holder that holds a disc and is detachably incorporated into the main body of a multi-disc player.

BACKGROUND ART A jukebox is generally known as a disc player that can store a plurality of discs and can sequentially select any of the stored discs to play continuously. However, conventional jukeboxes have very large bodies, making them unsuitable for home use.

In recent years, it has been called a digital audio disc (hereinafter abbreviated as DAD), and by recording digital signals, it is possible to increase the amount of information that can be stored compared to the conventional audio disc that contains analog signals, and it is easier to play. Several types of disks that generate less noise have been developed and are widely used.

Among these, discs with an outer diameter of approximately 12 cm, which are generally called compact discs and which record and read signals using laser light, are easy to handle and allow the entire disc player to be made smaller. be. Recently, I have been using multiple pieces of this small DAD (for example, 5 to 6 pieces).
A multi-disc player that can be stored at all times and is ideal for use as a home jukebox that plays these discs continuously has been developed. By the way, a small DAD has a performance time of one hour and can accommodate approximately 1.5 times the amount of information as a conventional analog audio disc. Therefore, for example, six discs can store about 120 songs with a performance time of around 3 minutes, and it is easy to cover them by your favorite genre, such as jazz or enka.

A multi-disc player basically includes a playing means including a turntable, a pickup, etc., a disc holder that holds a disc and is inserted into a mounting part in the player housing, and a disc in the disc holder that is placed at a playing position. In other words, it includes a disk ejecting and conveying mechanism that conveys the disk onto the turntable.

In a multi-disc player, when a disk in a disk holder is conveyed onto a turntable, the disk is moved in two directions, for example, in a direction parallel to the disk supporting surface of the turntable and in a direction substantially perpendicular thereto. However, in the multi-disc players that have already been developed, the disc ejecting and transporting mechanism for carrying out this transport directly grips the disc in the disc, the end of the disc in the direction in which it protrudes from the disc holder, or almost the entire disc. The structure of the disc ejecting and transporting mechanism, including the gripping mechanism that grips the disc, is large and complicated, and the space required for its operation is large (such as a player It has been difficult to downsize the entire device, and this has led to an increase in cost.

In order to solve this problem, recently, as shown in FIGS. 8 and 9, the above-mentioned disk holder is constructed with a housing 101 formed with a disk protruding opening, and a housing 101 that supports a disk 102 on its main surface and supports the disk 102. A multi-disc player has been newly developed that includes a plurality of plate-shaped trays 103 that are rotatably provided along each main surface of a housing and that carry the supported discs in order to protrude from and accommodate the housing. There is. That is, by simply rotating the plate-shaped trays each carrying a disk around the support pin 104, the disk can be transported in one direction (disk transport in a direction parallel to the disk supporting surface of the turntable). It is composed of Therefore, in a multi-disc player as described above, a disc stored in a disc holder is directly gripped by the protruding end of the disc from the disc holder or substantially the entire disc by a complicated gripping mechanism, and then removed from the disc holder. The structure is simpler than that provided with a pull-out type disc ejecting and transporting mechanism, and it becomes easier to reduce the size and cost of the player as a whole. The configuration of the disk holder described above is disclosed in, for example, Japanese Patent Application No. 1986-1.
04303 etc. in detail.

However, in the configuration in which the tray 103 is rotated as described above, a large space is required to move the tray, which results in an increase in the size of the disc player as a whole. Furthermore, if some external force is applied to the disc player when rotating the tray 103 carrying a desired disc in order to play the disc, the disc on the tray may shift in its radial direction, resulting in a so-called error. There was a concern that it would cause clamping, etc.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and its purpose is to reduce the space required for moving the tray, and to prevent the disk on the tray from shifting during movement. An object of the present invention is to provide a disk holder with good vibration resistance.

The disc holder according to the present invention is characterized in that the tray moves linearly, and the tray supports the disc by holding the outer peripheral portion of the disc at at least three points in the thickness direction of the disc. Further, the disc holder according to the present invention has a swinging lid that closes an opening for ejecting the disc formed in the housing, and a clamping part that clamps the outer circumference of the disc is formed in the lid. It is characterized by

Embodiments Hereinafter, a disc holder and a multi-disc player incorporating the disc holder as embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, a disc holder 2 is inserted and mounted in a mounting portion of a player housing 1 of the multi-disc player.

As shown in FIGS. 4(a) to 4(c), the disc holder 2 includes a rectangular parallelepiped-shaped housing 3 formed by assembling a top plate, a side plate, and a bottom plate, and a housing 3 that supports a disc 5 on its main surface. 3, which are movable linearly along each main surface (in the direction of arrow S) and allow the disk to protrude from the disk ejection opening 3a (shown in FIG. 4(a)) of the housing. It has a plate-like tray 6.

Details of this tray 6 are shown in FIGS. 5 and 6(C).

As is particularly clear from FIG. 5, the tray 6 has three clamping parts 6a, 6b, and 6C that clamp the outer periphery of the disc 5 supported thereon in the thickness direction of the disc. 6th
Figures (a) to (c) show the cross-sectional shape of each of these holding parts.

The holding portions 6a, 6b, and 6c are arranged at an angular pitch of approximately 90° in the circumferential direction of the disk 5.

As shown in FIGS. 4(a) and 4(b), within the housing 3 of the disc holder 2 are a pair of holes that hold and guide both sides of each tray 6 so that each tray 6 moves linearly. Guide members 8 and 9 are provided. Figures 5 and 6
As shown in Figure (a), straight grooves 5a and 5b are formed on both sides of the tray 5 to slidably engage with both guide members.

As shown in FIGS. 4(a) and 4(C), near the deepest part of the housing 3, a bin 10 is swingably supported and connected to the tray 6 by a pin portion 11a at its free end. An arm 11 is provided for engaging and biasing the tray towards the deepest part of the housing 3. Although not shown, a spring member that applies a tray biasing force to the arm 11 is also provided. As shown in FIG. 5, the tray 6 is formed with a notch 6e into which the pin portion 11a of the arm 11 engages. Figure 2, Figure 3, Figure 4 (C
) and FIG. 7, the disc holder 2 is provided with a lid 13 which closes the disc protrusion opening of the housing 3 and is swingable by a pin 13a. As shown in FIG.
is formed.

As shown in FIGS. 4(a) and 4(b), an opening 3a is formed in one side of the housing 3 of the disc holder 2 along the direction of movement of each tray 6 (direction of arrow S). . A protrusion 6g formed on each tray 6 protrudes outward from this opening 3a, and as shown in FIGS. A portion 6h is formed.

As shown in FIGS. 1 and 2, the rack section 6
A worm 15 that meshes with the worm 15 is arranged to extend in the tray movement direction (arrow S direction), and is rotatably supported by a pair of brackets 16 at both ends thereof. As shown in FIG. 2, the worm 15 is connected to the pulley 17. Belt 18. Pulley 19. Gear 20. Worm 21° Small pulley 22. Belt 23. Pulley 24.
The tray 6 is rotated by a motor 28 via gears 25, 26, 27, thereby moving the tray 6.

Reference numeral 30 in FIGS. 1 to 3 indicates a turntable (not shown) and a pickup (not shown).
(not shown), etc. As shown in FIG. 3, the disc holder 2 has a lever member 32.3.
3 and its connecting pin 34, etc., and is adapted to be moved in the direction in which the six disks 5 in the disk holder are arranged (in the direction of arrow T). A driving force is applied to the pantograph mechanism by a motor 36 via a gear transmission mechanism 35 or the like. In a multi-disc player, when taking out a selected desired disc from the disc holder 2 and transporting it onto the turntable, the direction parallel to the disc supporting surface of the turntable (direction of arrow S) and the direction perpendicular to the direction are It is necessary to move the disk in two directions (the direction of arrow T), that is, the above-mentioned disk arrangement direction, and the multi-disc player is also provided with a disk ejecting and transporting mechanism for moving in these two directions. The pantograph mechanism described above forms part of this disk ejecting and transporting mechanism. That is, the pantograph mechanism moves the disc holder 2 in the direction in which the discs are arranged (in the direction of arrow T), thereby changing the movement of the disc in that direction.

Further, the worm 15 and its rotation driving means (motor 28, etc.) shown in FIGS. 1 and 2 are also included in the above-mentioned disk ejecting and transporting mechanism. Figure 4 (though not completely)
As shown in a), the disk 5 is moved a predetermined distance in the direction of arrow S with respect to the disk holder 2 by the worm, etc., and a part of the disk 5 protrudes outside the disk holder 2. Although not shown, a mechanism is provided for holding a portion of the disk 5 protruding from the disk holder 2 in this manner and further moving the disk in the direction of arrow S to above the turntable.

This mechanism is also a part of the above-mentioned disk ejecting and transporting mechanism, and its specific structure is disclosed in Japanese Patent Application No. 58-0185 by the applicant of the present application.
51, etc., and will not be described in detail here.

Effects of the Invention As detailed above, in the disc holder according to the present invention, the tray carrying the disc moves linearly.

Therefore, compared to a conventional disc holder in which the tray rotates, less space is required to move the tray, and as a result, the disc player as a whole can be made smaller. Further, the tray is configured to support the outer peripheral portion of the disk by holding it at at least three points in the thickness direction of the disk. Therefore, the disk on the moving tray does not shift, and misclamping and the like do not occur.

Furthermore, the disc holder according to the present invention includes a swinging lid that closes the disc ejection opening formed in the housing, and a clamping portion that clamps the outer circumference of the storage disc is formed in the lid. .

Therefore, even if the disk holder is subjected to external vibration, the storage disk does not move slightly, resulting in good vibration resistance.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view of a disc holder according to the present invention and a multi-disc player to which it is mounted, and FIGS.
The figure is a side sectional view of the multi-disc player, and FIG.
) to 7 are diagrams for explaining the disc holder,
FIGS. 8 and 9 are diagrams for explaining a conventional disc holder. Explanation of symbols of main parts 2...Disc holder 3...Housing 3a...Opening 5...Disc 6...Tray 6a, 6b, 6c, 13cm... clamping part 6h.
...Rack part 13 ... Lid body 15 ... Worm 28.36 ... Motor

Claims (2)

[Claims] (1) A disc that holds a disc inside a housing in which an opening is formed, is inserted into the mounting part of a disc player, and is supplied into the disc player in response to an operation from the disc player for disc performance. The holder includes a plurality of plate-shaped trays, each of which can support a disk on its main surface, is linearly movable along each main surface with respect to the housing, and allows the disk to protrude from the opening. A disc holder, wherein the tray holds and supports the outer circumferential portion of the disc at at least three points in the thickness direction of the disc. (2) A disk that holds a disk inside a housing in which an opening is formed, is inserted into the mounting portion of a disk player, and is fed into the disk player in response to an operation from the disk player for disk performance. The holder includes a plurality of plate-shaped trays each capable of supporting a disk on its main surface and movable linearly along the main surface with respect to the housing to cause the disk to protrude from the opening. The tray holds the outer circumferential portion of the disk at least three points in the disk thickness direction, and the housing is provided with a swingable lid that closes the opening, and the housing is provided with a swingable lid that closes the opening. A disc holder characterized in that a clamping part is formed to clamp the outer peripheral part of the disc.