JPS6194262A - Disk loading device - Google Patents

Abstract

PURPOSE:To facilitate the loading and replacement of disks even in case a player main body is put at a high place by attaching a disk table to a table supporter which is set within a disk player main body and can move and securing the lower oblique movement of the disk table when it is pulled out. CONSTITUTION:A fulcrum shaft 36 is fixed to the right and left support bars 32 of a table supporter 30 at the front end part of each bar 32 and toward the inside direction. A disk table 20 has a fulcrum hole 37 to which the shaft 36 is fitted. The hole 37 has an oblong shape so that the table 20 can be tilted and also is opened at the lower part for easy assembling job. Thus the table 20 can turn round the shaft 36 to the supporter 30. This turning angle is controlled by the turning amount of a sloping rod 33.

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to players for optical discs and the like, and more particularly to a disc loading device in which a disc table on which a disc is placed can be pulled out and stored.

"Prior Art and its Problems" This type of disk player is known to have an opening/closing lid on the top surface, but this device is prone to dirt entering the mechanical parts such as the pickup, and the top surface of the device is On the other hand, a type in which the disc table can be pulled out and stored in the front and back direction, and the disc can be installed and removed while it is pulled out, reduces the possibility of dirt entering the mechanism, and also makes the top surface more efficient. It has the advantage of being easy to use, and is currently mainstream.

However, in this type of disc loading device, the disc table moves forward and backward in a straight line, so if the player is placed in a low place, there is no particular problem in loading and unloading the disc, but if the player is placed in a high place, the disc table moves forward and backward in a straight line. There is a problem that it becomes difficult to attach and detach. In other words, if the disc table is located at a high location, the top surface cannot be seen, making it difficult to place the disc in an accurate position, which may cause scratches or damage to the disc or the disc table.

``Object of the Invention'' Based on the discovery of this new problem, the present invention aims to provide a disk loading device that allows easy loading and unloading of disks even when the disk player is placed at a high place.

"Summary of the Invention" The present invention is based on the recognition that the problems of the conventional disc table type are due to the fact that the table advances and retreats in a straight line. It is characterized in that it is pivotally connected to a movable table support and can be tilted diagonally downward in the pulled out state. If the disk table is made tiltable in this way, the disk can be attached to and removed from the disk table which faces diagonally downward in the pulled out state, making it easier to attach and detach the disk.

"Embodiments of the Invention" The present invention will be described below with reference to illustrated embodiments. As shown in FIG. 6, the player main body t1 has an opening 12) for advancing and retracting the disc table on its front surface, and an open/close switch 1.
3. The disc loading device which is the subject of the present invention has various play buttons 14, indicators 15, etc. By operating the open/close switch 13', the disc table 20 can be pulled out from the disc table advancing/retracting opening 12, or this It is to be stored inside.

As shown in FIGS. 1 to 6, the disc table 20 has a disc loading recess 21 on its upper surface, and a notch 19 for a spindle motor 22 is formed from the rear of the table to the center of the disc loading recess 21. has been done.

The spindle motor 22 is connected to the base plate 16 of the player body 11.
is fixed at a fixed position, and at the upper end of its rotating shaft,
A turntable 23 with a lower clamper is integrally provided. Also supported on the substrate 16 is an upper clamp arm 24 . This upper clamp arm 24 has an upper clamp 25 located on the lower clamper-equipped turntable 23 at its tip, and its rear end is pivotally connected to a support base 26 erected on the substrate 16 by an axis i7. . Reference numeral 28 denotes a spring that biases the upper clamp arm 24 so that its upper clamp 25 moves toward the spindle motor 22 side.

A table support 30 made of a separate member from the disc table 20 is disposed on the base plate 16 of the player main body 11. Both the table support body 30 and the disc table 20 are mounted on rollers 31 supported by the base plate 16, and are movable toward the opening 12 for advancing and retracting the disc table.

The table support 30 has a U-shape in plan so as not to interfere with the upper clamp arm 24 and its support base 26, and between the left and right support bars 32 and 32, the support base 2
A tilting rod 33 located at the front of 6 is rotatably supported. The tilting rod 33 integrally has an abbreviated interlocking arm 34 protruding toward the disk table 20 at its center, and the interlocking shaft 3 at the tip of the interlocking arms 3 and 4
5 is pivotally attached to the rear end of the disc table 20.

On the other hand, the left and right support bars 32.3 of the four-table support 30
A fulcrum shaft 36.36 (only one shown) is fixed to the front end of the disk table 2, facing inward.
0 is the fulcrum hole 37.37 into which this fulcrum shaft 36.36 fits.
(same) is formed. This fulcrum hole 37.37 is
It is formed in the shape of a long hole in the front-rear direction to enable tilting of the disc table 20, and is open at the bottom to facilitate assembly. Therefore, the disk table 20
is rotatable about the fulcrum shaft 36 with respect to the table support 30, and the rotation angle is regulated by the amount of rotation of the tilting rod 33.

Next is a means for regulating the rotation angle of this tilting rod 33.

Also, a means for moving the disk table 20 and table support 30 will be explained. A loading motor 40 and a pulley 41 are disposed on the sides of the disk table 20 and the table support 30, and an endless wire 43 is wound between the pulley 42 and pulley 41 of the loading motor 40. This endless wire 43 is fixed to a cam plate 44 supported by one support bar 32 of the table support 30. The cam plate 44 is located within the recess 45 of the support bar 32 and is movable relative to the support bar 32 by a clear distance of 770 with respect to the recess 45 . Further, this cam plate 44 has an interlocking part 49, and this interlocking part 49 has a pin 4 attached to the support bar 32.
It engages with the interlocking pawl 48 of the stopper pawl 47 pivotally mounted at 6.

The stopper claw 47 normally slides on the top surface of the board 16, and at this time the interlocking claw 48 and the interlocking part 49 engage with each other, but when the stopper claw 47 falls into the stopper hole 50 drilled in the board 16, the engagement between the two stops. Unraveled.

A cam surface 51 is formed on the upper surface of this cam plate 44 . The cam surface 51 includes a straight surface 52 that allows the disc table 20 to move straight forward and backward, and a tilt surface 5 that tilts the disc table 20.
A cam 7 of a follower arm 54 provided integrally with the end of the tilting rod 33 is attached to the cam surface 51.
5 is the winner.

This device having the above configuration operates as follows. First, consider a loading state in which the disc table 20 and the table support 30 are housed in the disc table advancing/retracting opening 12 of the player body 11. In this loading state, as shown in FIG. 2, the upper clamp arm 24 is lowered, and the disk D is fixedly held between the upper clamp 25 at its tip and the turntable 23 with a lower clamper. When the oven close switch 13 is turned on here, an internal motor (not shown) is driven.

The upper clamp arm 24 is pushed up. Along with this, the disk elevating plate 57 rises and the disk loading recess 21
The mechanism up to this point is the same as that of the conventional front loading type, so we will not go into further details. Explanation will be omitted.

Next, the loading motor 40 is driven to pull the endless wire 43, and the cam plate 44 connected to the endless wire 43 starts moving forward. Then, when the disc table 20 and table support body are in the stored state at 3 degrees, the cam plate 44
interlocking part 49 and table support body 30 (support bar 32)
Since the interlocking pawl 48 of the stopper pawl 47, which is pivotally connected to the stopper pawl 47, is engaged with the interlocking pawl 48 as shown in FIG. move forward. Then, when the table support 30 and the disk table 20 move forward and the disk table 20 comes out of the opening 1'2 for advancing and retreating the disk table, the stopper claw 47 pivotally connected to the table support 30 moves into the stopper hole of the base plate 16. 50 and drop down to this point, so that the interlocking pawl 48 and the interlocking portion 49 are disengaged, and as a result, only the cam plate 44 moves forward with respect to the table support 30. Until then, the cam follower 55 of the photo arm 54 is in contact with the cam surface 51 of the cam plate 44, so that the cam follower 55 of the photo arm 54 does not rotate and the disc table 20 does not rotate. Although it maintains a straight line with respect to the table support 30, when the cam plate 44 moves forward with respect to the table support 30, the cam follower 55 becomes able to descend along the inclined track surface 53, and the tilting rod 33 becomes rotatable. Become. For this reason, the cam follower 5
5 reaches the tilting surface 53, the disc table 20
is rotated around the fulcrum shaft 36 by its own ff1ffi, and is tilted diagonally downward as shown in FIG. The amount of rotation of the disc table 20 depends on the depth of the tilting surface 53 and the length of the interlocking arm 34 protruding from the tilting rod 33. By appropriately determining these, the forward movement of the disc table 20 can be determined. The amount of rotation can be regulated.

In the state shown in FIG. 5, even if the entire player body 11 is located at a high place, the disc loading recess 21 of the disc table 20 can be seen, and therefore the disc D can be easily loaded or replaced. . Note that even if a force is applied to push the disk table 20 upward in the state shown in FIG. 5, the tilting rod 33 only rotates and the follower arm 54 moves away from the tilting surface 53, so there is no risk of damage.

After loading or replacing the disk D, when the open/close switch 13 is pressed, the loading motor 4
0 is driven in the opposite direction to when the disc table 20 is pulled out (when ejected), and as a result, only the cam plate 44 is moved back within the recess 45 of the support bar 32. Then cam surface 5
1 changes the contact surface with the cam follower 55 from the tilting surface 53 to the rectilinear surface 52, so the disk table 20 becomes linear with respect to the table support 30, and the cam plate 44
When the table support 30 and the disk table 20 move back together with the cam plate 44 and come into contact with the inner wall of the recess 45, the table support 30 and the disk table 20 move back together with the cam plate 44 and are housed. The stopper claw 47 comes out of the stopper hole 50 and slides on the substrate 16 due to the backward movement of the table support 30. When it is detected that the disk table 20 is completely stored, the disk elevating plate 57 is lowered and the disk D is positioned on the turntable 23 with a lower clamper, and the lowering timing of the disk elevating plate 57 is slightly delayed. The disc D is clamped between the lowering upper clamp arm 24 and the upper clamp 25, and the player is ready to play. Thereafter, the spindle motor 22 is driven by the play switch.

FIG. 7 shows a flowchart of the above operation.

"Effects of the Invention" As described above, in the disc loading device of the present invention, since the disc table tilts diagonally downward in the pulled out state, it can be used even when the player body is placed in a high place.

This has the effect of making it easy to load and replace disks.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the disk loading device of the present invention, and FIGS. 2 and 3 show different states of FIG.
■A sectional view taken along the line; FIGS. 4 and 5 are front views of FIG. 1 showing different states; FIG. 6 is a perspective view of the entire disc player; and FIG. 7 is a disc loading device of the present invention. This is a flowchart. DESCRIPTION OF SYMBOLS 11... Player main body, 12... Opening for advancing and retreating pad disc table, 1B... Board, 20... Disc table, 21... Disc loading recess, 22... Spindle motor, 30... Table Support body, 32... Support bar, 33... Tilt rod %34... Interlocking arm, 36... Fulcrum shaft, 37... Fulcrum hole, 40... Loading motor, 41.42...・Pulley, 43...
- Endless wire, 44... cam plate, 47... stopper claw, 48... interlocking claw, 49... interlocking part, 50...
Stopper hole, 51... Cam surface, 52... Straight advancement surface, 5
3...Cam surface.

Claims (3)

[Claims] (1) In a disc loading device in which a disc table is provided in the disc player main body so that it can be pulled out and stored in the front and back direction, and a disc is attached to and removed from the disc table in the pulled out state, the disc table is installed in the disc player main body. A disk loading device characterized in that a table support made of a separate member is movably provided, and the table support and a disk table are pivotally connected so that the disk table can tilt diagonally downward in a pulled out state. (2) In claim 1, the disk loading device is configured such that the tilting angle of the disk table is regulated by a tilting rod that is rotatably supported by a table support and whose interlocking arm is pivotally connected to the disk table. . (3) In claim 2, the rotation angle of the tilting rod is set such that the tilting rod runs idle a certain distance with respect to the follower arm provided integrally with the tilting rod and the table support that engages with the follower arm. A disk loading device regulated by a tilting surface of a cam plate.