JPS637962Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention is a disc player in which the player body that drives the set disc can be pulled out from the casing, and in particular, the magnet for disc clamping is rotatably suspended above the disc when stored. The present invention relates to a disc player in which the player body has a holder that is lowered and retracted from the disc when pulled out.

Conventionally, in this type of disk player, the lifting mechanism provided on the player body uses a cam mechanism to raise and lower the holder. If the holder is lifted or the lifting of the holder is blocked by an obstacle, the holder or the elevating mechanism that drives it may be damaged. There was an inconvenience that manufacturing costs increased.

The present invention was devised in view of the above-mentioned conventional problems, and its purpose is to provide a disk player at a low cost that will not be damaged even if the holder is pulled down while the holder is rising or its rise is prevented. It's about doing.

In order to achieve the above object, the present invention is such that the player main body that drives the set disc can be pulled out from the casing, and the player main body rotatably supports a magnet for disc clamping at the front end of the player main body so as to hold the disc when stored. It has a holder that includes an elevating mechanism that lowers the player and retracts it from the disk when it is pulled out, and a brake pad that is placed above the magnet. The present invention is characterized by a cam mechanism that lowers the tip of the holder until the brake pad is pressed by the magnet while the player body is being pulled out.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a disc player according to the present invention will be described below with reference to the drawings.

FIG. 1 shows the external appearance of the disc player of this embodiment, with the player main body 10 in a stored state;
A front panel 14 of the casing 12 shows only a door 16 rotatably attached to the front of the player body 10.

FIG. 2 shows a state in which the player body 10 is pulled out, and guide rails 18 for pulling out the player body 10 are provided on both sides of the player body 10.
Further, the holder 22, which supports the disk clamp magnet 20 (not shown in FIG. 2) at its tip, is retracted upward from the set disk 24.

In FIG. 3, the guide rail 18 is guided by rollers 26 provided inside the casing 12, so that the player main body 10 is moved inside the casing 12.
After that, the disk 24 is rotated on the turntable 28. The disk clamp magnet 20 is rotatably suspended from the tip of the holder 22, and at this time, the holder 22 lowers its tip using a lift mechanism, which will be described later, to lower the disk clamp magnet 20 onto the disk 24. . Further, this elevating mechanism 38 can pull up the tip of the holder 22 and retract the disk clamping magnet 20 upward from the disk 24.

In FIG. 4, a lifting mechanism 30 for driving the holder 22 has a rotating cam 34 in which a cam groove 32 is formed, and a lever plate 38 rotatably supported by a pin 36. A pin 40 inserted into the cam groove 32 is erected at one end of the cam groove 38, and the other end is rotatably connected by a pin 44 to the base of the holder 22 with the pin 42 as a fulcrum.

Further, the tip of the holder 22 is formed into a U-shaped cross section with the tip bent inward, and a disk clamp magnet 2 formed in the shape of a disk is placed inside the holder 22.
0 is inserted, and a disk clamp magnet 20 is rotatably suspended from the tip of the holder 22.

Here, one end portion 32-1 of the cam groove 32
As shown in Figure 1, the player body 10 is connected to the casing 1.
The other end portion 32-2 corresponds to the state in which the player main body 10 is pulled out from the casing 12 as shown in FIG. , groove portion 32-2
Although the groove portion up to 32-2 is wide enough to allow the pin 40 to slide therein, the groove width of the groove portion 32-2 is greatly expanded.

Further, the holder 22 is urged in the upward direction by a rising spring 46.

As described above, the elevating mechanism 30 of this embodiment is composed of a cam mechanism having such an elevating spring 46, and when the rotating cam 34 is driven while the kneading pin 40 is in the groove portion 32-1, the holder 22 is moved. The height changes as shown in the characteristic 100 in FIG.
Since the groove width of 2-2 is expanded, the rising spring 4
The holder 22 can be pulled down against the urging force of 6.

A rubber brake pad is attached to the inner surface of the tip of the holder 34 above the disk clamp magnet 20, and when the player body 10 is pulled out as described above, the holder 22
Once lowered, the groove portion 32-1 of the cam groove 40
is formed as shown in FIG. 4, so that the brake pad is pressed against the upper surface of the disk clamp magnet 20 to stop the rotation of the disk 24.

Further, in this embodiment, the driving force applied to the rotary cam 34 is also used to move the player body 10.

A preferred embodiment of the disc player according to the present invention has the above configuration, and its operation will be explained below.

As shown in FIG. 1, the player body 10 is pulled out and the disc 24 is set with the holder 22 retracted upward.

Thereafter, when the rotating cam 34 is rotated in one direction, the player body 10 moves toward the inside of the casing 12, and at this time, the height of the tip of the holder 22 changes according to the characteristic 100 in FIG. is lowered to press the brake pad 40 against the upper surface of the disk clamp magnet 20, and then retracted slightly to bring the two out of contact.

In this manner, after the player body 10 is housed as shown in FIG. 2, the disc 24 is played back.

When the above regeneration is completed and the disk 24 is to be removed or replaced, the rotary cam 34 is rotated in the opposite direction and the height of the tip of the holder 22 is changed according to the characteristic 100 in FIG. The brake pad 22 is once lowered on the way to press the brake pad against the upper surface of the disk clamp magnet 22 to stop the rotation of the disk 24, and then retreated upward.

If the holder 22 is prevented from rising for some reason while the player body 10 is being pulled out in this way, then the pin 40 is within the portion 32-2 of the cam groove 32 and the holder 22 is lifted. Since the holder 22 is biased in the upward direction by the spring 46, the upward movement of the holder 22 is stopped from that point on, as shown by characteristic 200 in FIG. Also, if an external force is applied downward to the holder 22 midway, the holder 22
is raised and lowered in accordance with the outward direction thereof and the urging force of the rising spring 46.

As explained above, according to this embodiment, even if the holder 22 is prevented from rising while the player main body 10 is being pulled out or an external force is applied in the downward direction, the holder 22 is allowed to descend. 22. The lifting mechanism 30 will not be damaged. Therefore, it is not necessary to set the strength of the holder 22 and the lifting mechanism 30 to be high, and it is therefore possible to reduce the cost of the device.

Furthermore, according to this embodiment, since the brake pad is pressed by the disk clamp magnet 22 to stop the rotation of the disk 24, no other brake mechanism is required, thus reducing the cost of the device. becomes possible.

If the biasing force of the rising spring 46 is large, there is a risk that noise will be generated by the shock when the turntable 28 and the disk clamping magnet 20 are separated. In order to prevent this noise from occurring, the biasing force of the rising spring 46 is weakened, and a convex portion 32-3 is formed at the entrance of the groove portion 32-2 as shown in FIG. It is preferable that the holder 22 is separated from the turntable 28 and then the holder 22 is raised by a weak biasing force of the raising spring 46.

As explained above, according to the present invention, it is possible to inexpensively provide a disk player in which the holder and the mechanism for raising and lowering it are not damaged even if the holder is prevented from rising or the holder is pulled down. It is possible.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective views of a preferred embodiment of the present invention, Figure 3 is an explanatory diagram of the internal structure of a preferred embodiment of the present invention, and Figure 4 is a main part of a preferred embodiment of the present invention. The configuration diagram, FIG. 5 is a graph diagram explaining the raising and lowering operation of the holder 34, and FIG. 6 is a plan view of the rotating cam 34. 10... Player body, 12... Casing,
20... Magnet for disk clamp, 22...
...Holder, 24...Disc, 30...Elevating mechanism, 32...Cam groove, 34...Rotating cam, 38...
...Lever plate, 46...Rising spring.

Claims (1)

[Scope of utility model registration request] The player main body that drives the set disc can be pulled out from the casing, and the player main body has a holder that rotatably supports a disc clamping magnet at its tip, and the holder is driven by a cam mechanism to drive the disc clamping magnet. The cam mechanism includes an elevating mechanism that lowers the player body onto the disk when it is stored, and retracts it from the disk when it is pulled out; A disk player characterized by: