JPH09330541A - Disc tray assembly and disc player using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a clamping of the rotation of a disc by accurately preventing the fluidization of the disc using a lever to elastically press the disc on the surface side of a disc housing section of a disc tray as conveyed inside or outside a disc player placed on a disc tray assembly. SOLUTION: A disc 9 is conveyed into a housing 10 by inserting a disc tray assembly 30 into the housing 10. At the same time, the disc 9 is pressed so elastically on the surface of a disc housing section of a disc tray by a first lever 33 or the like as to always keep the disc at a stable attitude during the conveying thereof or at the completion of the conveying thereof. As a result, the fluidization of the disc 9 during the conveying thereof is stopped to suppress possible noises. Upon the insertion of the disc 9 into the housing 10, a dick 20 rotationally rises and the lever 33 is separated from the disc 9 rising. As a result, the disc 9 separated from the surface of the housing section is clamped by a turntable 50 and a pressing member 60.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc tray assembly for carrying a disc inside and outside a housing of a disc player and a disc player employing the disc tray assembly.

[0002]

2. Description of the Related Art As shown in FIG. 1, a disc player 1 for reproducing information written on a disc such as a compact disc usually has a housing 2 and a hinge 3a inside the housing 2. The deck 3 is rotatably provided. Disc player 1
Further, the disk tray assembly 40 is provided so that the disk 9 can be carried in and out of the housing 2 through an opening 2a formed in one side wall of the housing 2. A pressing member 6 is provided on the top of the housing 2, and a turntable 5 and a spindle motor 5 are provided on the deck 3.
a and an optical pickup unit 7 are provided.

As shown in FIG. 2, the disc tray assembly 40 includes a disc tray 41, a lever 43 connected to the disc tray 41, and the like. The back surface of the disc tray 41 faces the deck 3 when it is inserted into the housing 2. The disc tray 41 is provided with a disc accommodating portion 42 so as to accommodate the disc 9. ing.

The lever 43 and the like are used for the disc tray 4
1 is connected to the periphery of the disc housing portion 42 by a hinge 44, and the disc housing portion 42 as shown by the solid line in FIG.
2 and a disk receiving portion 4 which is substantially orthogonal to the first position as shown in phantom in FIG.
It can be pivoted between a second position away from two. On the other hand, the lever 43 and the like are kept in a state of being separated from the surface of the disc accommodating portion 42 by a predetermined distance D as shown in FIG.

In order to reproduce the disc 9 in the disc player 1 having such a structure, the disc tray assembly 40 is first taken out from the housing 2 and the lever 43 and the like are rotated to the second position. Then, after the disc 9 is accommodated in the disc accommodating portion 42 of the disc tray 41, the lever 43 or the like is rotated again to the first position to prevent the disc from being separated from the disc accommodating portion 42. In this state, when the disc tray assembly 40 is inserted into the housing 2, the disc 9 is carried into the housing 2. When the disk 9 is inserted into the housing 2, the deck 3 is rotated upward, and the turntable 5 provided on the deck 3 is lifted together to move the disk 9 from the surface of the disk accommodating portion 42 of the disk tray 41. Lift. The disk 9 thus lifted is clamped by the turntable 5 and the pressing member 6 under the lever 43 and the like. After that, spindle motor 5
The turntable 5 and the clamped disc 9 are rotated by the rotation of a, and the information of the disc 9 is read by the optical pickup unit 7.

In the above conventional disc player,
Considering that the disc is lifted from the surface of the turntable and the disc storage portion of the disc tray, the lever and the like are separated from the surface of the disc storage portion of the disc tray by a distance considerably larger than the thickness of the disc. Therefore, there is a problem in that when a disc is transported, particularly in a disc player in which the disc is vertically erected, the flow of the disc and accompanying noise are severely generated. There is also a problem in that the disc may change its posture due to the disc flowing between the lever and the surface of the disc accommodating portion of the disc tray, and the turntable may not be able to reliably lift the disc. .

[0007]

SUMMARY OF THE INVENTION The present invention has been devised to solve such a problem, and ensures the flow of a disc when the disc is carried into and out of the housing of a disc player. (EN) Provided is an improved disc tray assembly which prevents the noise and suppresses noise, and at the same time, the disc can be securely separated from the surface of the disc accommodating portion by the turntable while being inserted in the housing of the disc player. Especially that purpose.

Another object of the present invention is to reliably prevent the flow of the disk during transportation of the disk to suppress noise, and at the same time to ensure the disk accommodating portion by the turntable in a state where the disk is inserted inside the housing. It is an object of the present invention to provide a disc player with an improved disc tray assembly so that it can be separated from the surface of the disc player.

[0009]

In order to achieve the above-mentioned object, a disc tray assembly according to the present invention is provided in a disc player housing so that it can be inserted into and removed from the housing of the disc player, and has a disc accommodating portion recessed in the surface thereof. The tray and a plurality of levers provided around the disk housing portion of the disk tray so as to be rotatable between a first position protruding toward the disk housing portion and a second position separated from the disk housing portion. In the disc tray assembly, at least one of the plurality of levers can move a predetermined distance perpendicularly to the surface of the disc tray, and is elastically biased in a direction to approach the surface of the disc receiving portion. Is characterized by.

In order to achieve the above-mentioned other object, a disc player according to the present invention is provided with a housing, a disc tray which is provided in and out of the housing and has a disc accommodating portion provided in a recessed surface thereof, and the disc. A first position around the disk storage portion of the tray, the first position protruding toward the disk storage portion side, and the second position separated from the disk storage portion.
A plurality of levers rotatably provided between positions, a deck facing the back surface of a disk tray inserted inside the housing, and a deck provided so as to be able to approach and separate from the disk tray; In a disc player provided with a turntable coupled to a deck so as to support a disc accommodated in a disc accommodating portion of the disc tray when the disc tray is approached, At least one of the plurality of levers can move a predetermined distance perpendicularly to the surface of the disc tray, and is elastically biased in a direction of approaching the surface of the disc accommodating portion, and the deck has the disc tray. The elastically biased lever against the surface of the disk storage portion Characterized by comprising a pressing projection for pressing in the direction to be septum.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. 4 to 7, a disc player 1 according to the present invention
00 is a housing 10 in which a pressing member 60 is provided on the upper portion.
A deck 20 is provided inside the housing 10 so as to be rotatable around a hinge 29. The disc player 100 also includes a disc tray assembly 30 that can be moved in and out of the housing 10 through an opening 11 formed in one side wall of the housing 10 to carry the disc 9 into and out of the housing 10. ing.

A turntable 50 is mounted on the deck 20.
A spindle motor 51 for rotating the turntable 50 and an optical pickup unit 70 for reading information from the disc are provided. The member number 21 is a pressing protrusion formed at a predetermined position on the deck 20. As shown in FIGS. 5 and 6, the disc tray assembly 30 includes a disc tray 31 and the disc tray 31.
It has a pair of first levers 33 and a pair of second levers 43 that are coupled to each other.

The back surface of the disc tray 31 faces the deck 20 when inserted into the housing 10. The disc tray 31 is provided with a disc accommodating portion 32 which is recessed in the surface thereof and accommodates a disc. The first lever 33 and the like and the second lever 43 and the like are provided around the disc accommodating portion 32 of the disc tray 31.

The second lever 43 and the like are separated from the surface of the disk accommodating portion 32 of the disk tray 31 by a predetermined distance, as in the conventional disk tray assembly 40 described with reference to FIGS. The hinges 44 are rotatably connected in a closed state. As a result, the second lever 43
Etc. are substantially perpendicular to the first position as shown by the solid line in FIG. 5 toward the disc housing portion 32 side and the first position as shown by the phantom line in FIG. 32
Can be pivoted to and from a second position away from.

The first lever 33 and the like are also connected to the second lever 43.
Similarly to the above, the first position is projected to the side of the disk accommodating portion 32 as shown by the solid line in FIG. 5, and the second position is separated from the disk accommodating portion 32 as shown by the phantom line in FIG. Can be rotated between. Unlike the second lever 43 and the like, the first lever 33 and the like are provided so as to be movable vertically by a predetermined distance with respect to the surface of the disc tray 31, and with respect to the surface of the disc accommodating portion 32. Elastically biased in the direction of approaching. Such first
The installation structure of the lever 33 and the first lever 33 will be described with reference to FIGS. 6 and 7.

The disc accommodating portion 32 of the disc tray 31
A drawing-in portion 31a for accommodating the first lever 33 and the like is formed at the edge portion of the. On the bottom surface of the first lever 33, a pair of elastic pieces 33a are formed in parallel. The elastic pieces 33a and the like can be elastically deformed so as to be approached and separated from each other, and the locking protrusions 3 are provided at the ends of the elastic pieces 33a.
3b is formed. In order to connect the first lever 33 to the disc tray 31, the first lever 33
The elastic pieces 33a and the like are inserted into the through holes 31b formed in the pull-in portion 31a to project to the back side of the disc tray 31. Thereafter, the compression coil spring 35 is inserted around the elastic piece 33a and the like, and the connecting member 34 is attached to the elastic piece 33a.
It is inserted into a or the like and coupled to the first lever 33. As a result, the protruding portion 34 a of the coupling member 34 is inserted between the elastic pieces 33 a and the like of the first lever 33, and the locking portion 3 of the coupling member 34 is formed.
4b includes a locking protrusion 33 formed at the end of the elastic piece 33a.
b is combined. Both ends of the compression coil spring 35 are elastically contacted with the bottom surface of the disc tray 31 and the top surface of the coupling member 34, respectively.

The first lever 33 thus connected is
The first position and the second position with the elastic piece 33a or the like as the center of rotation in a state in which the relative rotation with the connecting member 34 is prevented by the protrusion 34a of the connecting member 34 inserted between the elastic pieces 33a or the like. Can be rotated between. Also, the first lever 33
Has a bottom surface contacting the tip end surface of the protrusion 34a of the coupling member 34, and the locking projection 33b has a locking portion 3 of the coupling member 34.
Since it is in close contact with 4b, relative movement with respect to the coupling member 34 and separation from the coupling member 34 are prevented. Therefore, the first lever 33 is provided between the position where the bottom surface of the first lever 33 contacts the surface of the disk tray pull-in portion 31a and the position where the upper surface of the coupling member 34 contacts the bottom surface of the disk tray 31. Thus, the state in which the disc tray 31 can be moved vertically by a predetermined distance with respect to the surface thereof is maintained.
The first lever 33 is brought into contact with the surface of the disk accommodating portion 32 by the elasticity of the compression coil spring 35, that is, the bottom surface of the first lever 33 is in contact with the surface of the pull-in portion 31a of the disk tray. The method is elastically biased.

When the disc tray assembly 30 is inserted into the disc player housing 10, the pressing protrusion 21 of the deck 20 shown in FIG. 4 is positioned below the connecting member 34. On the other hand, as shown in FIG. 6, a positioning protrusion 31c protruding toward the first lever 33 is formed at a predetermined position on the surface of the pull-in portion 31a of the disc tray 31 that contacts the first lever 33. As shown in FIGS. 8 and 9, the bottom surface of the lever 33 includes a first groove portion 33c for accommodating the positioning protrusion 31c of the disc tray 31 at the first position and a positioning protrusion 31c of the disc tray at the second position. Second groove part 3 to accommodate
It is desirable to form and place 3d. As a result, the first lever 33 has the positioning protrusion 31c and the first groove 33c.
Or the positioning protrusion 31c and the second groove portion 33d can be properly fixed at the first position or the second position. The first groove 33c and the second groove 33d are provided on both sides of the first lever 33 in the rotating direction, as shown in FIG. 10, so that the first lever 33 can rotate smoothly. It is desirable to form the inclined portion 33e.

In the disc player 100 having the above structure, for example, when a disc is mounted inside the housing 10, the disc tray assembly 30 is first provided.
Of the lever 33, 43 from the housing 10.
The disc 9 is accommodated in the disc accommodating portion 32 of the disc tray 31 in a state where the disc 9 is located at the second position. At this time, the first lever 33 located at the second position has the second groove portion 33 formed on the bottom surface thereof as shown by the solid line in FIG.
The positioning protrusion 31c of the disc tray is housed in d and is fixed in position at the second position.

Thereafter, the levers 33 and 43 are respectively rotated to the first position to prevent the disc 9 from being detached from the disc accommodating portion 32. At this time, if an external force is applied in the rotational direction F to rotate each of the first levers 33 located in the second position to the first position, the first lever 33 is rotated.
As shown by the phantom line in FIG. 10, the inclined portion 33e formed in the second groove portion 33d on the bottom surface thereof slides up with respect to the positioning protrusion 31c of the disc tray, and the first lever continues. The bottom surface of 33 is rotated while being in contact with the tip surface of the positioning protrusion 31c of the disc tray. On the other hand, in the process of raising the first lever 33, the coupling member 34 fixed to the first lever 33 also rises, whereby the compression coil spring 35 is compressed. After that, the first lever 33 is rotated to the first position by the external force. First lever 3
When 3 is rotated to the first position, the first groove portion 33c is positioned above the positioning protrusion 31c of the disc tray, and the first lever 33 thereof is lowered by the restoring force of the compression coil spring 35. It will be. The first lever 33 that descends in this manner has the first groove 33 on the bottom surface thereof.
While the positioning protrusion 31c of the disc tray is inserted in c, the disc 9 accommodated in the disc accommodating portion 32 of the disc tray 31 is elastically pressed while being fixed in the first position.

In such a state, the disc 9 is carried into the housing 10 by inserting the disc tray assembly 30 into the housing 10. On this occasion,
As described above, the disk 9 is elastically pressed against the surface of the disk accommodating portion 32 of the disk tray by the first lever 33 or the like, so that the disk 9 can always maintain a stable posture during transportation or in a state where transportation is completed. This suppresses noise caused by the flow of the disc during transportation.

On the other hand, when the disk 9 is inserted into the housing 10, the deck 20 is raised and rotated.
As indicated by phantom lines in FIG. 1, the pressing projections 21 and the like formed on the deck 20 press the coupling members 34 and the like. As a result, the coupling member 34 rises while compressing the compression coil spring 35, and the first lever 33, which is fixed to the coupling member 34 and elastically presses the disc, rises and separates from the disc 9. At about the same time, the turntable 50 (see FIG. 4) provided on the deck 20 lifts the disc 9. At this time, the disk 9
As described above, is the disc storage portion 32 of the disc tray.
Because it keeps a stable posture inside, turntable 5
It is precisely inserted into 0 and lifted. In this way, the turntable 50 allows the disc tray 3 to accommodate the disc tray.
The disk 9 which is separated from the surface of
The lower part of 3, 43, etc. is clamped by the turntable 50 and the pressing member 60 (see FIG. 4). afterwards,
The turntable 50 and the disc 9 are rotated by the rotation of the spindle motor 51 (see FIG. 4), and the information of the disc 9 is read by the optical pickup unit 70 (see FIG. 4).

On the other hand, as shown in FIG.
6, a groove portion 21a having a predetermined width C is formed on the tip end surface of the pressing protrusion 21. As shown in FIG. 6, the length B of the short side of the bottom surface portion of the coupling member 34 is the width of the groove portion 21a of the pressing protrusion. It is also possible to form a rectangular shape which is smaller than C and whose long side A is longer than the width C. In this case, FIG.
As shown in FIG. 12, when the first lever 33 is located at the first position, the coupling member 34 is pushed by the tip of the pushing protrusion 21 of the deck 20, and the first lever 33 is pushed as shown in FIG. When the 33 is in the second position, the connecting member 3
4 is the groove portion 21 of the pressing protrusion 21 of the ascending deck 20
It is accommodated in a and is not pressed. By doing so, when the disc tray assembly 30 is inserted into the housing 10 with the first lever 33 positioned at the second position, the first lever 33 is unnecessary to the surface of the disc tray 31. It is possible to suppress vertical movement.

On the other hand, if at least one of the four levers provided around the disc accommodating portion 32 of the disc tray 31 is composed of the first lever as described above, it does not depart from the scope of the present invention. Further, the object of the present invention can be achieved by providing only the plurality of first levers without providing the second lever 43 as described above.

[0025]

As described above, according to the present invention, the lever that elastically presses the disc placed in the disc tray assembly and conveyed in and out of the disc player to the surface side of the disc receiving portion of the disc tray. As a result, the flow of the disc can be surely prevented, so that not only noise can be suppressed but also clamping for rotation of the disc can be surely performed.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a conventional disc player.

2 is a plan view of the disc tray assembly shown in FIG. 1. FIG.

FIG. 3 is a sectional view of the disc tray assembly shown in FIG.
It is a sectional view taken along the line III.

FIG. 4 is a schematic sectional view of a disc player according to the present invention.

5 is a plan view of the disc tray assembly shown in FIG. 4. FIG.

6 is a schematic perspective view of a main portion of the disc tray assembly shown in FIG.

7 is a VII-of the disc tray assembly shown in FIG.
FIG. 7 is a sectional view taken along the line VII.

8 is a schematic perspective view showing a bottom surface of the first lever shown in FIG.

FIG. 9 is a diagram showing a positional relationship between a positioning protrusion of the disc tray and a groove portion of the first lever and the like.

FIG. 10 is a sectional view taken along line XX of FIG. 9;

11 is a view showing a state where the first lever is raised by the protrusion of the deck shown in FIG.

FIG. 12 is a view showing a state in which the deck is raised with the first lever in the second position.

[Explanation of symbols]

 10 Housing 20 Deck 30 Disc Tray Assembly 31 Disc Tray 32 Disc Storage Section 33 First Lever 33c First Groove 33d Second Groove 34 Coupling Member 35 Compression Coil Spring 43 Second Lever 50 Turntable 100 Disc Player

Claims (4)

[Claims] 1. A disc tray having a disc accommodating portion that is provided in and out of a housing of a disc player and has a recessed surface, and a disc accommodating portion around the disc accommodating portion of the disc tray on the disc accommodating portion side. A disc tray assembly comprising a plurality of levers rotatably provided between a projected first position and a second position away from the disc housing, wherein at least one of the plurality of levers is the disc tray. The disk tray assembly is movable perpendicularly to the surface of the disk tray and is elastically biased in a direction of approaching the surface of the disk housing. 2. A positioning protrusion protruding toward the lever is formed on a surface of the disc tray that contacts the elastically biased lever, and the elastically biased lever has the disc tray at the first position. 2. The disc tray assembly according to claim 1, wherein a first groove portion for accommodating the positioning protrusion of and a second groove portion for accommodating the positioning protrusion of the disc tray are formed at the second position. 3. A housing, a disk tray provided inside and outside of the housing and having a disk accommodating portion recessed in the surface, and the disk accommodating portion side around the disk accommodating portion of the disk tray. A plurality of levers that are rotatably provided between a first position projecting in the housing and a second position separated from the disk accommodating portion, and the disk tray that faces the back surface of the disk tray inserted into the housing. A deck provided so as to be close to and away from the disk tray, and for supporting a disk accommodated in the disk housing portion of the disk tray while being separated from the surface of the disk housing portion when the deck is approaching the disk tray. In a disc player equipped with a turntable coupled to the deck, The other one is movable vertically by a predetermined distance with respect to the surface of the disc tray, and is elastically biased in a direction of approaching the surface of the disc storage portion, and the deck is provided with the above-mentioned structure when approaching the disc tray. A disc player comprising a pressing protrusion for pressing the elastically biased lever in a direction in which it is separated from the surface of the disc housing portion. 4. A positioning protrusion protruding toward the lever is formed on a surface of the disk tray that contacts the elastically biased lever, and the elastically biased lever has the disk tray at the first position. 4. The disc tray disc player according to claim 3, wherein a first groove portion for accommodating the positioning protrusion of and a second groove portion for accommodating the positioning protrusion of the disc tray are formed at the second position.