JPH039170Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a disc player, and more particularly to a multi-disc player that can accommodate a plurality of discs and can sequentially select any of the stored discs for continuous performance.

BACKGROUND ART A joke box is generally known as a disc player that can play a plurality of discs in succession. However, the conventional desk box itself was very large, making it unsuitable for home use.

In recent years, digital audio discs (hereinafter referred to as
(abbreviated as DAD), by recording digital signals, it can accommodate a larger amount of information than conventional audio disks that record analog signals, and generates less noise during playback. Several types of disks have been developed and are widely used.
Among these, disks with an outer diameter of approximately 12 cm, which are generally called compact disks and which record and read signals using laser light, are easy to handle and allow the overall size of the disk player to be made smaller. It is. Recently, this small DAD
A multi-disc player has been developed that is ideal for use as a home joke box that can store a plurality of discs (for example, 5 to 6 discs) at any time and play these discs continuously. By the way, the playback time of a small DAD is one hour, which is about the same as a conventional analog audio disk.
It can accommodate 1.5 times the amount of information. Therefore, for example, 6 discs can accommodate approximately 120 songs with a performance time of around 3 minutes, making it easy to cover songs by genre of your choice, such as Jiyaz or Enka.

A multi-disc player basically has a performance means including a turntable, a pickup, etc.
The player includes a disk holder that holds a disk and is inserted into a mounting portion in the player housing, and a disk ejecting and conveying mechanism that conveys the disk in the disk holder to a performance position, that is, onto a turntable.

Figures 3 through 6 show multi-disc players that have already been developed.

As shown in FIG. 3, the front panel 3 of the player housing 2 is provided with a rectangular insertion opening 3a for inserting a disc holder 5 into the player housing. Although not shown, within the player housing 2 there is a playing means including a turntable and a pickup, and a disk ejecting and transporting mechanism that transports a disk (described later) in the disk holder 5 to the playing position, that is, onto the turntable. and is provided.

The insertion port 3a described above extends in the left-right direction. However, the left-right direction referred to herein refers to the front direction indicated by arrow Y, and the direction of arrow X is to the left. Further, arrow Z indicates upward.
The front panel 3 is also provided with a group of operation buttons 6 and a display section 7 for operating the multi-disc player.

As also shown in Figures 4 and 5 a and b,
The disk holder 5 is generally formed in the shape of a flat rectangular parallelepiped, and holds, for example, six disks 8. The disks 8 are arranged and housed in order at a predetermined pitch in a direction perpendicular to the disk supporting surface of the turntable, in this case, in the vertical direction (in the direction of arrow Z and its opposite direction).

A linear guide groove 5a is formed at the right end of the lower surface of the disc holder 5 along the mounting direction to the disc holder mounting portion within the player housing 2. On the other hand, as shown in FIGS. 3 and 4,
A disk holder mounting portion within the player housing 2 is provided with a linear protrusion 2a that engages with the linear guide groove 5a. As shown in FIG. 4, inside the player housing 2, there is a linear protrusion 2.
A tongue-shaped guide plate 10 is provided so as to face a. The front end of the guide plate 10 has an inclined portion 1 that is inclined toward the linear protrusion 2a in the mounting direction of the disk holder 5 to the disk holder mounting portion (rearward = counter-arrow Y direction).
0a is formed.

The above-mentioned linear guide groove 5a and linear protrusion 2a
and the tongue-shaped guide plate 10 constitute a guide means for guiding the disk holder 5 to the mounting position.

As described above, the disk holder 5 is formed in the shape of a rectangular parallelepiped, and can be attached to the disk holder attachment portion even if the attachment posture is incorrect, such as upside down. The linear guide groove 5a and the linear protrusion 2a described above function to prevent mounting when the mounting posture is incorrect.
That is, when the disk holder 5 is upside down, the rear upper edge 5b (fourth
(shown in the figure) comes into contact with the front end of the linear protrusion 2a, thereby preventing attachment.

However, even if the mounting posture of the disk holder 5 is not correct, if the mounting force is abnormally large, the bottom plate 2b on which the linear protrusion 2a is formed and the tongue-shaped guide plate 10 may become attached to the inclined portion, as shown in FIG. 10
The component forces generated by the action of a cause the arrows F and
It bends in the G direction and can be attached with difficulty. If the disk ejecting and transporting mechanism is operated in a state where the disk holder 5 is not mounted in the correct posture, not only will disk loading be impossible, but there is also concern that various parts of the mechanism may be damaged.

Summary of the invention The present invention has been made in view of the above points, and its purpose is to provide a multi-disc player that can prevent the disc holder from being erroneously attached to the player body.

The multi-disc player according to the present invention has a linear guide groove formed in the disk holder along the mounting direction to the disk holder mounting part, and a linear protrusion provided in the player housing that engages with the linear guide groove. and a tongue-shaped guide plate provided to face the linear protrusion and formed with an inclined portion that slopes toward the linear protrusion in the mounting direction. , the inclined portion is provided with an abutting surface located inward from the surface of the inclined portion and substantially perpendicular to the mounting direction, and the end portion of the disk holder in the mounting direction with respect to the disk holder mounting portion and the contact surface opposite to the mounting direction. It is characterized in that at least one of the directional ends is provided with a protruding abutting protrusion that abuts the abutting surface at its tip.

Embodiment Hereinafter, the main parts of a multi-disc player as an embodiment of the present invention will be explained with reference to FIGS. 1 and 2. Although not shown in the drawings as a whole, the multi-disc player has the same structure as the multi-disc player shown in FIGS. 3 to 6, and in the following description, the structure shown in FIGS. The same reference numerals are used for the same parts as in the multi-disc player shown.

As shown in FIGS. 1 and 2, the inclined portion 10a formed on the tongue-shaped guide plate 10 includes:
an abutment surface 10 located inward from the front surface of the inclined portion and perpendicular to the mounting direction of the disk holder 5;
b is provided.

On the other hand, at the end of the disk holder 5 in the mounting direction with respect to the disk holder mounting portion, a contact protrusion 5b is provided to project from the contact surface with its tip end. In FIGS. 1 and 2, the disk holder 5 is upside down and the mounting posture is incorrect, but in this state, the abutment protrusion 5b abuts the abutment surface 10b and the disk holder 5 is inserted and mounted. is prevented.

Effects of the Invention As detailed above, in the multi-disc player according to the present invention, a linear guide groove is formed in the disc holder along the mounting direction to the disc holder mounting part, and a linear guide groove is provided in the player housing to guide the linear guide groove. a tongue-like guide formed with a linear protrusion that engages with the linear guide groove; and an inclined part that is provided to face the linear protrusion and slopes toward the linear protrusion in the mounting direction; and a disc holder guide means comprising a plate, the inclined part being provided with an abutting surface located inward from the surface of the inclined part and substantially perpendicular to the mounting direction,
At least one end of the disk holder in the mounting direction and the opposite end with respect to the disk holder mounting portion is provided with a protruding abutment protrusion that abuts the abutment surface at its tip.

In other words, when the disc holder is inserted into the disc holder mounting portion in the player housing in the correct orientation, the disc holder is smoothly guided by the inclined portion, but when the disc holder is not installed in the correct orientation, the disc holder is guided smoothly by the inclined portion. The abutment protrusion abuts the abutment surface, thereby preventing the disk holder from being inserted and mounted.

Therefore, incorrect attachment of the disk holder to the disk holder mounting portion is prevented, disk loading is always performed reliably, and the mechanisms of each part are not damaged.

[Brief explanation of the drawing]

FIGS. 1 and 2 are diagrams showing essential parts of a multi-disc player according to the present invention, and FIGS. 3 to 6 are diagrams for explaining already developed multi-disc players. Explanation of symbols of main parts, 2...Player housing, 2a...Linear protrusion, 5...Disc holder, 5a...Linear guide groove, 5b...Abutment protrusion,
10... tongue-shaped guide plate, 10a... inclined portion, 10b... contact surface.

Claims (1)

[Scope of utility model registration request] A player housing, a playing means provided in the player housing, a disk holder that holds a disk and is inserted into a mounting portion in the player housing, and a disk that transports the disk in the disk holder to a playing position. The guide means includes a take-out conveyance mechanism and a guide means for guiding the disk holder to a mounting position, and the guide means includes a linear guide groove formed in the disk holder along the mounting direction to the mounting section; A linear protrusion provided in the player housing and engaged with the guide groove; and an inclined portion provided opposite to the linear protrusion and inclined toward the mounting direction so as to approach the linear protrusion. The inclined portion is provided with an abutting surface located inward from the surface of the inclined portion and substantially perpendicular to the mounting direction, and the inclined portion is provided with an abutment surface that is substantially perpendicular to the mounting direction. A multi-purpose multilayer, characterized in that at least one end of an end in a mounting direction and an end in a counter-mounting direction with respect to the mounting part is provided with a protrusion protruding from the contact surface with its tip end. disk player.