JPS637963Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a disk player in which the player body that drives the set disk can be pulled out from the casing, and in particular, the player rotatably supports the disk clamp magnet and lowers onto the disk when stored. The present invention relates to a disc player in which the player body has a holder that is retracted from the disc when the player is pulled out.

This type of disc player is extremely convenient for operation because the player body that drives the set disc can be pulled out from the casing to replace the disc. Positioning the holder when it is lowered is important, and for this reason, various proposals have been made in the past.

However, in the past, the positioning and adjustment work of the holder was difficult, and as a result, dimensional control of each member was strictly required, resulting in problems in that it took time to assemble the product and increased the cost of the product.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide a disk player in which the positioning and adjustment of the holder is easy and does not require strict dimensional control of each member. There is a particular thing. .

In order to achieve the above object, the present invention is such that a player main body that drives a set disc can be pulled out from a casing, and the player main body has a holder that rotatably supports a magnet for disc clamping at the tip thereof; The holder is driven by a cam mechanism to lower the disk clamp magnet onto the disk when the player body is stored, and the lifting mechanism transmits the driving force from the cam of the cam mechanism to the holder. The driving force transmission system includes a stroke adjustment mechanism that adjusts the vertical stroke of the holder.

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 disc 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 can pull up the tip of the holder 22 and retract the disk clamping magnet 20 upward from the disk 24.

In FIG. 4, the tip of the holder 22 is formed into a U-shaped cross section with the tip bent inward, and the top of the disc-shaped disk clamp magnet 20 is inserted into the holder 22. A disk clamp magnet 20 is rotatably suspended from the tip of the disk. A rubber brake pad 30 is attached to the inner surface of the front end of the holder 34 above the disk clamp magnet 20.

Here, the elevating mechanism includes a cam mechanism including a cam 32 and a driving force transmission system that transmits its driving force to the holder 22.

The cam 32 is driven by a gear (not shown), and when the player body 10 is pulled out from the casing 12, the cam groove 34 is inserted into the brake pad 3 on the upper surface of the disk clamp magnet 20.
The holder 22 is lowered until 0 is pressed, the rotation of the disk 24 is stopped, and then the holder 22 is pulled up. Further, the width of the groove portion 34-1 of the cam groove 34 is enlarged so that the holder 22 and the elevating mechanism are not damaged even if an external force is applied to prevent the holder 22 from rising. A lever 36 that transmits driving force to the holder 22 is biased by a spring 38 so that when the holder 22 is raised, the holder 22 can be pulled down by an external force.

A pin 40 that moves within the cam groove 34 is provided upright at one end of the cam groove 34, and the lever 36 can rotate about the pin 42 as a fulcrum.
One end of an arm 44 is rotatably supported by the pin 42, and the other end of the arm 44 is connected to the holder 22 via a pin 46.

As mentioned above, in the present invention, a stroke adjustment mechanism for adjusting the vertical stroke of the holder 22 is provided in the driving force transmission system that transmits the driving force from the cam 32 to the holder 22. Therefore, in this embodiment, the lever A spring 48 is inserted between 36 and the arm 44, and this spring 48
An adjustment screw 50 is provided for adjusting the distance between the lever 36 and the arm 44 against the urging force of the lever 36 and the arm 44.

Note that the driving force applied to the cam 32 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.

To adjust the positioning of the holder 22, as shown in FIG. The adjusting screw 50 is adjusted so that it contacts the disc clamping magnet 20 with a predetermined pressure. As a result, the stroke of the holder 22 is adjusted, and the positioning of the holder 22 is completed.

After the above positioning is performed, when the cam 32 is rotated, the disk clamp magnet 20 and the brake pad 3 are connected when the player body 10 is stored.
0, and when the player body 10 starts to be pulled out, the brake pad 30 once contacts the disc clamping magnet 20, the rotation of the disc 24 is stopped, and the holder 22 is pulled out of the casing 12. Then, the holder 22 is retracted upward from the disk 24.

As described above, according to this embodiment, it is possible to easily adjust the positioning of the holder 22 by changing the stroke of the holder 22 simply by adjusting the adjustment screw 50.

Further, since the stroke adjustment mechanism can absorb variations in the dimensional accuracy of each member, it is not necessary for the parts to have high accuracy, and it is therefore possible to reduce the cost of the apparatus.

Further, according to this embodiment, the holder 22 can be easily positioned, so that the brake pressure applied to the disk clamp magnet 20 of the brake pad 30 can be maintained appropriately.

Since the brake pad 30 is provided on the holder 22, there is no need to provide any other brake mechanism for the disk 24, thereby making it possible to further reduce the cost of the device.

Further, even if an external force is applied downward when the holder 22 is raised, the holder 22 is allowed to descend downward, so the holder 22 and its elevating mechanism will not be damaged.

As explained above, according to the present invention, it is possible to easily position the holder without increasing the dimensional accuracy of each member, and therefore it is possible to provide a disk player that is inexpensive and easy to manufacture. be.

[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 an explanatory diagram illustrating the positioning adjustment of the holder 22. 10... Player body, 12... Casing,
20... Magnet for disk clamp, 22...
...Holder, 24...Disc, 32...Cam, 3
6...Lever, 40...Pin, 42...Pin, 4
4... Arm, 46... Pin, 48... Spring, 50... Adjustment screw.

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 includes a holder that rotatably supports a magnet for disc clamping at the front end, and a holder that drives the holder by a cam mechanism to connect the magnet for disc clamping. It has an elevating mechanism that lowers the magnet onto the disk when the player is stored, and retracts it from the disk when it is pulled out.The elevating mechanism adjusts the elevating stroke of the holder to a driving force transmission system that transmits driving force from the cam of the cam mechanism to the holder. A disk player comprising a stroke adjustment mechanism.