JPH045047Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION BACKGROUND ART The present invention relates to an apparatus for cleaning a reading element for reading a disk-shaped recording medium such as a compact disk.

BACKGROUND ART In a compact disc playback device, a reading element using a laser called a pickup is used to read the compact disc. If dust or the like adheres to this reading element, the quality of the reproduced sound will deteriorate. The reading element is provided inside the playback device, and the reading element cannot be easily cleaned.

Problems to be Solved by the Invention An object of the invention is to provide a cleaning device that can easily clean an element for reading a disc-shaped recording medium.

Means for Solving the Problems The present invention provides a disk-shaped recorder having a flat overall shape, which has a nozzle hole that faces the reading element during loading, and a passage that communicates with the nozzle hole and opens in the peripheral wall. It is characterized by comprising a main body that is similar to a medium, an air pumping means for pumping air through the main body to a nozzle hole, and a flexible tube that communicates the passage in the peripheral wall of the main body with the air pumping means. This is a cleaning device for a reading element for a disc-shaped recording medium.

Function: By operating the air pressure feeding means, the air is injected from the nozzle hole through the tube and the passage in the main body. Air from this nozzle hole is directed towards the reading element. Therefore, dust and the like adhering to the reading element can be removed.

Embodiment FIG. 1 is a perspective view of an embodiment of the present invention.
Such a cleaning device 1 is used for cleaning a reading element 3 using a laser or the like in a compact disc playback device 2 shown in FIG. A compact disc is housed in a guide body 5 and inserted and loaded from the insertion opening 4 of the playback device 2.

The reading element 3 reads the recorded image facing below the compact disk, which is indicated by reference numeral 6 in FIG. When rotated and read, this reading element 3 gradually moves radially outwards.
In the rest position, the reading element 3 is in the position indicated by reference numeral 3 in FIG.
It is located at the positions indicated by a and 3b. In the embodiment of FIG. 1, the reading element 3 is arranged at a diametrically downstream position along the insertion direction 7 of the compact disc 6, as indicated by reference numeral 3 in FIG. 3 can be cleaned by the cleaning device 1 of the present invention.

The cleaning device 1 basically includes a main body 8 and a bag body 9.
and a flexible tube 10. The main body 8 has an overall shape similar to that of a flat disk-shaped recording medium, that is, a compact disk 6. This main body 8 also has a shape similar to that of the guide body 5 that accommodates the compact disc 6.

A cross section of the main body 8 is shown in FIG. The main body 8 has a nozzle hole 11 that faces the reading element 3 when the main body 8 is inserted and loaded in the insertion direction 7 similarly to the compact disk 6. This nozzle hole 11 communicates with a communication hole 12 formed in the main body 8. The communication hole 12 is open at an open end 14 in the peripheral wall 13 on the upstream side in the insertion direction 7 of the main body 8 . The main body 8 is made of a material such as synthetic resin.

The bag 9 has flexibility, is made of a material such as rubber, and is hollow. The chamber of this bag 9 is connected via a tube 10 to an open end 14 formed in the main body 8.

When the main body 8 is inserted and loaded in the insertion direction 7 from the insertion opening 4 of the playback device 2 in the same manner as the guide body 5 is inserted, the nozzle hole 11 faces the reading element 3 . When the bag 9 is compressed in this state with a finger or the like, air is injected from the nozzle hole 11 toward the reading element 3. As a result, dust adhering to the reading element 3 is removed and cleaned. By repeatedly compressing the bag 9, the device of the reading element 3 can be made more complete. In this way, it is possible to prevent the quality of the sound reproduced from the compact disc from deteriorating due to dust adhering to the surface of the reading element 3. Further, according to such a cleaning device 1, the reading element can be easily cleaned without requiring electric power or the like.

FIG. 5 shows a cleaning device 15 according to another embodiment of the present invention.
FIG. The overall shape of the main body 16 is a flat shape similar to that of a compact disk, similar to the previous embodiment.

FIG. 6 is a sectional view taken along the section line - in FIG. 5. As shown in FIG. 3, nozzle holes 17, 17a, and 17b are formed in the main body 16 facing downward, facing the compact disk 6, and corresponding to the positions indicated by reference marks 3, 3a, and 3b when the machine is at rest. Ru. Passages 18, 18a, 18b that communicate with these nozzle holes 17, 17a, 17b, respectively, open in the peripheral wall 19 of the main body 16.

FIG. 7 is a front view of the main body 16 showing the peripheral wall 19. The opening ends of the passages 18, 18a, 18b are the seventh
In the figure they are indicated by reference numerals 20, 20a, 20b.

FIG. 8 is an enlarged plan view of the vicinity of the opening end 20. An annular flat protrusion 21 is formed on the peripheral wall 19 . The passage 18 opens at the free end of the protrusion 21 and forms an open end 20 thereof. The remaining open ends 20a and 20b are similarly connected to the protrusions 21.
a, 21b are formed.

When the reading element 3 in the reproducing device 2 is located at one of the reference marks 3, 3a, and 3b in FIG.
Air is pumped from b, and the nozzle holes 17, 17a, 1
Air can be injected from 7b to the reading element 3 to clean it.

A connecting piece 23 is provided which has a fitting hole 22 into which a projection 21, 21a, 21b can fit in order to supply air to the open end 20, 20a, 20b. This connecting piece 23 is connected to a bag body 25 via a flexible tube 24. Pipe 24 and bag 25
has the same structure as the tube 10 and bag 9 in the previous embodiment. By selectively fitting one of the protrusions 21, 21a, 21b into the fitting hole 22 of the connecting piece 23, the nozzle holes 17, 17a,
Air is injected from 17b, and the reference numerals 3 and 3 in FIG.
The reading elements located at a and 3b can be cleaned.

FIG. 9 is a plan view from below of another embodiment of the present invention, and FIG. 10 is an exploded perspective view thereof;
FIG. 11 is a sectional view of a part thereof. A mounting recess 28 is formed in the center of the main body 27 of the cleaning device 26. A short cylindrical projection 29 is formed in the center of the mounting recess 28 . Mounting recess 28
The nozzle member 30 is fitted into the. The protrusion 29 fits into the attachment hole 31 of the nozzle member 30. The outward flange 32 of the nozzle member 30 is
It fits into and engages with an engagement hole 33 that extends outward in the radial direction at the bottom of the mounting recess 28 . Main body 2
7 is formed with a passage 34 which opens in a peripheral wall 35 and whose open end 36 is connected to the bag body 9 via a flexible tube 10. Passage 34
is open at the connecting end 37 on the inner surface of the mounting recess 28 . On the lower surface of the nozzle member 30, reference numbers 3, 3a, 3b in FIG. 3 of the reading element 3 are provided.
Nozzle holes 38, 38 correspond to the positions indicated by
a, 38b are formed. These nozzle holes 3
8, 38a, 38b are connected to the connection hole 4 through passages 39, 39a, 39b formed in the nozzle member 30.
0, 40a, and 40b.

With the nozzle member 30 mounted in the mounting recess 28, the connection holes 40, 40a, 40b are connected to the connection hole 37.
The air by compressing the bag body 9 flows through the nozzle holes 38, 38.
It is injected from ports a and 38b. Therefore, the reading element 3 at the positions 3, 3a, 3b in FIG.
can be cleaned.

The present invention can be widely implemented for cleaning not only the reading elements of compact discs but also reading elements for reading other flat disc-shaped recording media. In addition to cleaning the reading element by removing dust, it is also possible to clean it by blowing away water droplets generated by energizing the reading element. Further, the air pressure feeding means is not limited to the bag body, but can also be configured by an electric pump or the like.

Effects As described above, according to the present invention, air is injected from the nozzle hole formed in the main body by operating the air pressure feeding means, thereby making it easy to clean the reading element. becomes possible. Even if the reading element is installed deep inside a playback device or the like, it can be easily cleaned using the cleaning device according to the present invention.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a perspective view of a compact disc playback device 2, and Fig. 3 is a perspective view of an embodiment of the present invention.
The figure shows a reading element 3 that reads a compact disc 6.
4 is a sectional view of the embodiment shown in FIG. 1, FIG. 5 is a plan view of the main body 16 of another embodiment of the present invention, and FIG. FIG. 7 is a front view of the peripheral wall 16 of the main body 19, FIG. 8 is an enlarged plan view of the vicinity of the opening end 20, and FIG. 9 is a cross-sectional view taken from the cutting plane line - in FIG. FIG. 10 is a plan view of the embodiment seen from below.
FIG. 11 is a sectional view of a portion of the embodiment shown in FIGS. 9 and 10. 1, 15...Cleaning device, 3...Reading device, 6
... Compact disk, 8, 16, 27 ... Main body, 9, 25 ... Bag body, 10, 24 ... Tube, 1
1, 17, 17a, 17b, 38, 38a, 38
b... Nozzle hole.

Claims (1)

[Claims for Utility Model Registration] A nozzle hole that is directed toward the reading element during loading;
A main body that communicates with the nozzle hole and has a passage opening in the peripheral wall, and has an overall shape similar to a flat disc-shaped recording medium; an air pumping means for pumping air through the main body to the nozzle hole; 1. A cleaning device for a reading element for a disc-shaped recording medium, comprising a pipe communicating the passage in the peripheral wall with the air pressure feeding means.