JPS60254448A - Optical recording and reproducing device - Google Patents

Abstract

PURPOSE:To make efficient the man-hour required for manufacturing an optical recording and reproducing device and structure of the device, such as entire size, mechanism, etc., by providing a clamp member which is held under a rotation-free condition in the clamp mounting direction and a gear with cam which converts the rotating movement of a rotating means into the turning force of the clamp member. CONSTITUTION:When a gear 12 is driven by means of a motor 13 so that the gear 12 is rotated in the direction shown by the arrow B under a condition where a clamp member 9 is pushed against a disk receiving member 1 through an information recording medium 2, a gear with cam 11 is rotated in the direction shown by the arrow D around a shaft 11b. As the gear with cam 11 rotates, a cam driving pin 10 moves to the central part of the gear with cam 11 by sliding along the outer peripheral wall 11c of a cancave section 11a. On the other hand, as the driving pin 10 moves, the clamp member 9 moves to its another position 14 shown by the alternate long and two short dashes line around a shaft 8 against the tensile force of a tension spring 4 and the unloading operation of the recording medium 2 is performed. Therefore, the recording medium 2 can be unloaded by rotating the gear with cam 11 at a prescribed position only and, therefore, the number of parts used in this device can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an optical system that can be used in devices that record or reproduce information, such as external memories for combination computers, audio recording and playback systems, video recording and playback systems, etc. This invention relates to a type recording/reproducing device.

2. Description of the Related Art Structures of Conventional Examples and Their Problems In recent years, optical recording and reproducing devices have attracted attention as devices capable of recording, reproducing, and even erasing information. A conventional optical recording/reproducing device will be explained below.

FIG. 1 is a side view of a conventional optical recording/reproducing apparatus, showing the configuration of a method for clamping an information recording medium.

In Fig. 1, 1 indicates the disc holder is a member, and the motor 1
It is driven by a. Reference numeral 2 denotes an information recording medium, and a disk holder is held on the member 1. 3 inserts the information recording medium 2.
The clamp member 4 to be removed is a tension spring that presses the clamp member 3, and its both ends are engaged with the fixing portion 4& and the engagement piece 3a of the clamp member 3. 5 is a slide lever having a gear portion 6a for vertically moving the clamp member 3; 6 is a gear for moving the slide lever 5;
7 is a motor that drives the gear 6, and 8 is a shaft that rotatably holds the clamp member 3.

The operation of the conventional optical recording/reproducing apparatus configured as described above will be explained below.

First, the clamp member 3 is located at the position of the clamp member 3b indicated by the two-dot chain line, and the slide lever 6 with a cam is located at the position of the slide lever 6b indicated by the two-dot chain line. To position the tapered slide lever 6 in the upper position, first drive the motor 7 in the direction of arrow A to rotate the gear 6 and at the same time move the tapered slide lever 6 in the direction of arrow C.
move in the direction. At this time, due to the rotational force of the gear 6, the disk receiver of the clamp member 3 rotates in the direction of pressing the member 1, using the shaft 8 as a fulcrum, and the suppressing portion 3C provided at the tip of the clamp member 3 is moved by the tension spring 4. The disk holder presses the information recording medium 2 against the member 1 by the spring force to achieve clamping of the information recording medium 2. Also, to release the clamped state, perform the above operation in reverse.

However, in the above configuration, the stroke of the tapered slide lever 5 is long, and there is wasted space in that portion. Furthermore, since the structure of the clamp member 3 is complicated, there is a problem in that the assembly process is also difficult.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional problems, and aims to provide an optical recording and reproducing device that simplifies the construction of the clamping method and requires less space for the clamping operation. purpose.

Structure of the Invention The present invention provides an optical information recording medium and an optical recording and reproducing apparatus comprising an optical information recording medium and a gear with a cam that converts the rotational force of a rotating means into the rotational force of the clamping member in order to clamp and mount the information recording medium in a fixed position. The device does not require wasted space unlike the conventional example, and can be easily assembled.

DESCRIPTION OF EMBODIMENTS FIG. 2 is a side view of an optical recording/reproducing apparatus according to an embodiment of the present invention, and FIG. 3 is a schematic front view thereof.

In FIGS. 2 and 3, the same members as those in FIG. 1 are given the same numbers and their explanations will be omitted.

9 is a clamp member having a pressing part 3c at the tip and a cam drive pin 10 at the end; 11 is a gear with a cam that performs insertion and removal movements by rotating the clamp member 9; A recess 11a is provided in which the pin 1° can slide. A gear 12 is driven by the motor 13 and is disposed in engagement with the cam gear 11 to transmit driving force.

The operation of the optical recording/reproducing apparatus of this embodiment configured as described above will be explained below.

First, in FIG. 2, the clamp member 9 is the disc holder member 1.
2 shows a state in which the information recording medium 2 is pressed.

In this state, when the motor 13 drives the gear 12 to rotate in the direction of arrow B, the cam gear 11 rotates about the shaft 11b in the direction of the arrow. Also, gear with cam 1
As the cam drive pin 1o rotates, the cam drive pin 10 moves to the center of the cam gear 11 while sliding on the outer peripheral wall 11c of the four parts 11a.Meanwhile, the clamp member 9 moves to the center of the cam gear 11 as the cam drive pin 1o moves. 8, the clamp member 14 is moved to the position shown by the two-dot chain line against the tension of the tension spring 4, and a detachment operation is performed.

In addition, in the case of the insertion operation of the clamp member 9, the motor 13
is rotated in the direction opposite to the direction of arrow B, and the information recording medium 2, which has been previously positioned at a predetermined location on the disc holder member 1 by a disc mounting member (not shown), is pressed against the disc holder member 1. , clamp the information recording medium.

As described above, according to the hook embodiment, it is only necessary to rotate the cam gear 11 at a predetermined position, and the number of parts can be reduced, and the position of the parts does not change when inserting and removing operations. The only thing you need is the clamp member.

Effects of the Invention The present invention provides a clamp member that is rotatably held in the clamp mounting direction, and a gear with a cam that converts the rotational movement of the rotating means into rotational force of the clamp member.
This makes it possible to realize an excellent optical recording/reproducing device that is efficient in terms of man-hours, the overall size of the device, and the structure of the mechanism.

[Brief explanation of drawings]

Fig. 1 is a side view of a conventional optical recording and reproducing device, Fig. 2 is a side view of an optical recording and reproducing device according to an embodiment of the present invention, and Fig. 3 is a schematic front view of the same. ...Information recording medium, 4...Bow 1 tension spring, 8...
Shaft, 9... Clamp member, 1o... Cam drive bin, 1191191. Gear with cam, 12090
11. Gear, 130. . ···motor. Name of agent: Patent attorney Toshio Nakao 11 or 1 person Figure 1

Claims (1)

[Claims] Since the disk holder that rotationally drives an optical information recording medium is clamped to a member, the clamp member is rotatably held in the direction in which the flang is attached, and the rotational force of the rotating means is applied to one end of the clamp member to rotate the clamp member. An optical recording and reproducing device characterized by having a gear with a cam that converts it into power.