JPH07111008A - Cd-rom retrieving device - Google Patents

Abstract

PURPOSE:To read both built-in and marketed CD-ROMs by providing a part for pressing the marketed CD-ROM on a member for holding the built-in CD- ROM in an inner surface of a cover opposite to a turntable freely movably by a spring. CONSTITUTION:A middle part 7a of the holding member 7 and the pressing part 7b are engaged with a middle part 4a and a recessed groove part 4c of the turntable 4, and a back surface of the middle part 7a is freely movably fitted to the inner surface of the cover part 2 via a spring material 10. The middle part 7a is fitted into a center hole of the built-in CD-ROM 8, and a projection 7c is engaged with an engagement hole 8b to hold the member 7, so that a recording surface of the ROM 8 is close opposite to an optical pickup 5. Underneath this ROM 8, the marketed CD-ROM 11 is set with its center hole 11a engaged with the middle part 4a, and is elastically pressed by the pressing part 7b and held by the member 7 from the upper and lower sides, so that a recording surface is close opposite to the pickup 5. Thus, the built-in and marketed ROMs 8 and 11 can both be set and read out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is a CD capable of reading information from both a built-in CD-ROM and a commercially available CD-ROM.
A ROM search device.

[0002]

2. Description of the Related Art In recent years, many databases of various information utilizing a CD-ROM have been commercially available. In particular, for documents requiring a large number of printed materials,
Game software that requires a large amount of capacity is a CD-ROM
It is used after being converted. With this, CD-RO
Various electronic devices for reading M have been developed, and CD-R
There is an increasing demand for OM-only search devices. In such a CD-ROM retrieval device, in addition to data on a commercially available CD-ROM, information that is built in the device in advance, such as an English-Japanese / Japanese-English dictionary or a Japanese dictionary function, is generally used as a high value-added product.

[0003]

However, the conventional C
Since the D-ROM retrieval device relies on the internal information data in the semiconductor memory, it is necessary to increase the capacity of the semiconductor memory in order to have many built-in functions, resulting in high cost and structure. There was a problem that it became large. Further, in the conventional CD-ROM retrieval device having internal information data by the semiconductor memory, there is a problem that the main body cannot have many functions due to the small data capacity.

The present invention is intended to solve the above-mentioned problems. One optical pickup provided on the main body of the present invention has a built-in CD-R.
It is an object of the present invention to provide a CD-ROM retrieval device capable of reading both OM and commercially available CD-ROM.

[0005]

To this end, the present invention is directed to a turntable, a motor for rotating the turntable, and a CD-drive driven by the turntable to rotate.
In a CD-ROM retrieval device including a main body provided with an optical pickup for reading information on a recording surface of a ROM, and a cover part that is openably and closably mounted on the main body, an inner surface of the cover part facing the turntable is provided. , Built-in CD-RO
A holding member for holding M is attached to the turntable so as to be movable back and forth by the spring force of the spring material, and a commercially available CD-ROM is projected on the holding member so as to project to the turntable side from the recording surface of the built-in CD-ROM. The turntable is provided with a holding portion.

[0006]

According to the above construction, it is possible to set a commercially available CD-ROM while holding the built-in CD-ROM by the holding member.
Any of M can be read by the optical pickup of the main body.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a CD-ROM according to an embodiment of the present invention.
It is a perspective view of the state where the cover part of a search device was opened. Reference numeral 1 denotes a box-shaped main body, and a cover portion 2 is mounted on the upper surface thereof by a hinge portion 3 so as to be openable and closable. A turntable 4 and an optical pickup 5 are provided on the upper surface of the main body 1. As shown in the sectional view of FIG. 2, a motor 6 for rotating the turntable 4 is built in the main body 1,
The turntable 4 is attached to the rotary shaft 6a.

1 and 2, a substantially disk-shaped holding member 7 is attached to the center of the inner surface of the cover portion 2, and the holding member 7 holds a built-in CD-ROM 8.
The built-in CD-ROM 8 is driven by the turntable 4 to rotate, and the optical pickup 5 reads information on its recording surface (lower surface). Although not shown in the figure, the cover 2
A keyboard for data input and search and a display for displaying data are provided on the upper surface of the. The keyboard section and the display are connected to a control circuit section 9 (see FIG. 2) built in the main body 1.

FIG. 2 shows a CD-ROM according to an embodiment of the present invention.
It is sectional drawing in the state which does not set commercial CD-ROM of a search device. The turntable 4 has a thick central portion 4a, and an annular recessed groove portion 4c is formed on the upper surface of a peripheral edge collar portion 4b. The holding member 7 has a central portion 7a fitted to the upper surface of the central portion 4a of the turntable 4 and a holding portion 7b fitted to the concave groove portion 4c of the turntable 4, and the rear surface of the central portion 7a is It is mounted on the inner surface of the cover portion 2 via a spring material 10 so as to be able to move back and forth. Built-in CD-
The ROM 8 has a central portion 7a of the holding member 7 in its center hole 8a.
7c that fits together and is provided on the peripheral edge of the pressing portion 7b.
Is held by the holding member 7 by engaging with the engaging hole 8b of the built-in CD-ROM 8. Therefore, as shown in FIG. 2, with the cover portion 2 closed on the upper surface of the main body 1,
The holding member 7 is elastically pressed against the turntable 4 by the spring force of the spring material 10, and the recording surface of the built-in CD-ROM 8 closely faces the optical pickup 5.

FIG. 3 shows a CD-ROM according to an embodiment of the present invention.
It is sectional drawing in the state which set the commercially available CD-ROM of a search device. As shown in the figure, the commercially available CD-ROM 11 is set by fitting its center hole 11a into the thick central portion 4a of the turntable 4. In this state, the central hole 11
The peripheral portion of a is elastically pressed by the pressing portion 7b, the commercially available CD-ROM 11 is held by the turntable 5 and the holding member 7 from above and below, and the recording surface thereof faces the optical pickup 5 closely.

In FIG. 3, the commercially available CD-ROM 11 is rotated by driving the motor 6, and the optical pickup 5
The information on the recording surface is read by, but in this state, the lower surface (recording surface) of the built-in CD-ROM 8 is the commercially available CD-ROM 1
The pressing portion 7b so as not to contact the upper surface (non-recording surface) of
Is a spacer that projects toward the main body 1 side from the recording surface of the built-in CD-ROM 8 and secures a constant interval T between them.

In the state shown in FIG. 2, a built-in CD-ROM
The recording surface of No. 8 is in contact with the upper surface of the protrusion 4d at the peripheral edge of the turntable 4, and in the state shown in FIG.
The recording surface of the OM 11 is also in contact with the upper surface of the protrusion 4d. That is, the protrusion 4d has a built-in C so that the gap between the recording surface of the built-in CD-ROM 8 or the commercially available CD-ROM 11 and the optical pickup 5 becomes constant and reading is stable.
It serves as a positioning means for positioning the recording surfaces of the D-ROM 8 and the commercially available CD-ROM 11 with respect to the optical pickup 5. As shown in FIG. 3, a commercially available CD-ROM
The central hole 11a of 11 is the central hole 8a of the built-in CD-ROM 8.
It is slightly larger in diameter.

[0014]

As described above, the CD-RO of the present invention
According to the M search device, a built-in CD-ROM and a commercially available CD-R
A CD-ROM with a lot of information data that can be read by an optical pickup with the OM set together.
A ROM search device can be realized at low cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a CD-ROM search device according to an embodiment of the present invention with a cover portion opened.

FIG. 2 is a cross-sectional view of a CD-ROM search device according to an embodiment of the present invention when a commercially available CD-ROM is not set.

FIG. 3 is a cross-sectional view of a CD-ROM retrieval device according to an embodiment of the present invention in which a commercially available CD-ROM is set.

[Explanation of symbols]

 1 Main Body 2 Cover Part 4 Turntable 5 Optical Pickup 6 Motor 7 Holding Member 7b Holding Part 8 Built-in CD-ROM 10 Spring Material 11 Commercial CD-ROM

Claims (2)

[Claims] 1. A main body provided with a turntable, a motor for rotating the turntable, and an optical pickup for reading information on a recording surface of a CD-ROM driven by the turntable to rotate, and the main body. And a cover part that is openably and closably mounted, the inner surface of the cover part facing the turntable,
A holding member for holding the built-in CD-ROM is attached to the turntable so as to be movable back and forth by the spring force of a spring material, and the holding member projects toward the turntable side from the recording surface of the built-in CD-ROM. Commercial CD-
A CD-ROM retrieval device comprising a holding portion for holding the ROM on the turntable. 2. The holding section also serves as a spacer for ensuring a space between the recording surface of the built-in CD-ROM and the non-recording surface of the commercially available CD-ROM. CD-ROM search device.