JPS639062A - Recording disk reproducing device - Google Patents

Abstract

PURPOSE:To improve the plastic deformation or distortion of a disk case due to external force by arranging a member for fixing one end of the case and movable members to be unitedly oscillated in accordance with the external force on the right and left sides of a disk case insertion port. CONSTITUTION:The fixing part 12a to be abutted upon the tip part 102a of the disk case 102 to fix the case 102 and upper and lower movable members to be rotated around a supporting point 51 and a plate spring 52 are arranged on the right and left insertion blocks 12. When external force is not applied at the time of inserting a disk, the case 102 is held in parallel by the fixing part and the abutting part 50b of the movable part. When external force P is applied, the movable part is deformed in a direction (c) or (d) by the deformation of the abutting part 102b and the plate spring 52 is excited to the neutral position. Consequently, the plastic deformation or distortion of the case due to external force can be improved and the external force can be stably detected by using an external force detector.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a disk-shaped recording medium (hereinafter referred to as a disk).
This invention relates to a recording disc playback device that takes out a disc from a disc case in which it is stored and plays it back.

2. Description of the Related Art Traditionally, in playback devices for high-density recording disks, such as video discs, the cylindrical disk case housing the disk is manually inserted into the back of the playback device, as described in Japanese Patent Application Laid-open No. 111158/1983. There were many playback devices that adopted a semi-automatic loading method, in which the disc was inserted until the end of the disc and the empty case was manually removed, leaving the disc behind.

However, in this case, there are problems such as the need to move the case back and forth significantly, resulting in poor operability, and the difficulty in constructing a loading mechanism that can operate perfectly even under severe use.

Therefore, an auto-loading type playback device has been proposed in which the disk is automatically loaded by simply inserting the disk case slightly into the playback device's insertion slot.

However, in this case as well, it is difficult to completely load the disc case when external forces are applied to it from above and below, so the switch is pressed against the disc case inserted into the insertion slot from above and below, respectively. A detection device has been proposed that detects the vertical rocking of the disc case due to external force applied from the vertical direction by touching the disc case, and controls the loading operation of the playback device to be stopped when the disc case is tilted in the vertical direction for a predetermined amount or more. .

An example of a device for detecting external force in the conventional recording disk reproducing device described above will be described below with reference to the drawings. Third
The figure is an external perspective view of a conventional recording disk reproducing device and an external force detecting device.

The main body of the playback device can be roughly divided into 1. chassis, 2. Turntable 3. Opener block for opening the disc case 1024. Chucking block for taking out the disc from the disc case5. Transfer block 6 for transferring the chucking block 6, detection switches for detecting the position of the chucking block 57. Lift mechanism that guides the lifting and lowering of the disc 8. A loading block 9 that drives the opener block 4 and lift mechanism 8, etc. A six-arm housing 10 equipped with a reproducing head. Sensor feed block 1 that feeds the arm housing 10 in the disk direction
1. Insertion block 12 into which the disk case 102 is inserted. A switch 132L detects the inclination of the disk case 102 due to external force.

13b etc.

Figure 4 shows the disk case 1o2 inserted into the insertion block 12 and the vertical external force detection switches 13&, 13b.
It is a relationship diagram.

The disk case 1o2 inserted into the insertion block 12 moves as shown by the arrow Y1 due to an external force. Tilt in the Y2 direction. Due to this inclination, the actuators 13&1,1 of the external force detection switches 131L and 13b are in contact with the disk case 1o2.
31) is pressed, and external force can be detected.

On the other hand, as a further improved means for detecting external force, a means for detecting vertical external force using a single switch as shown in FIG. 6 near the insertion block has also been proposed.

FIG. 6 shows a relationship between the disk case 102 inserted into the insertion block 112 and the external force detection block. In FIG. 5, 201 is a switch lever, 202 is a switch lever B12O3 is a switch pace, 2o9 is a spring that biases the switch lever 201 in the direction of arrow Y2, and 204
is an external force detection switch, which is fixed to the switch base 203 with screws. 205 and 206 are the rotation fulcrums of the switch levers 201 and 202, B, 207 is the switch adjustment pin for external force detection, and 208 is the switch lever 2
01,202 stopper.

Next, in FIG. 6, when the disk case 102 inserted into the insertion block 112 receives an external force in the direction of arrow Y1, the disk contact portion 20 of the switch lever 201
1& moves in the direction of arrow d, and the contact part 201b of the switch lever person 201 to the actuator 204 & of the external force detection switch 204 moves in the direction of arrow a, so that the actuator 2042L of the external force detection switch 204 moves in the direction of arrow a. It operates in the direction of arrow a and the switch is turned on. In addition, if an external force is applied in the direction of arrow Y2, the disk case abutting portion 20 of switch lever B2O2
2& moves in the direction of arrow C, and the contact portion 201C12o2C between the switch lever person 201 and switch lever B2O2 moves in the direction of arrows U1 and W2, respectively, by the fulcrum 8206.

Along with this operation, the switch lever 201 moves to the actuator 204a of the external force detection switch 204, and the switch is turned on.

Problems to be Solved by the Invention However, with only such a detection device, even if an external force is applied to the disk case 102, the case 102 is fixed at the insertion opening, so the tilt of the case 102 due to the external force cannot be properly detected by the switch 104. The detection switch did not function properly.

For example, the insertion opening of the insertion block 12 as shown in FIG. 4 cannot hold the case 102 at the insertion center even if the case 102 is inserted, and the case 102 moves in the Y2 direction due to its own weight.
02 was tilted and the function was incomplete.

Furthermore, the same applies to only the external force detection means shown in FIG. 6, and since the case 102 is fixed at the insertion port, the external force Y, ,
Even if Y2 was applied, there were cases where the change in the switch levers 201 and 202 was so small that it could not be detected.

The present invention solves the above-mentioned problems, and provides a device that can reliably operate a detection switch in response to the rocking of the disc case due to an external force in the vertical direction applied to the disc case. The purpose is to

Means for Solving the Problems In order to solve the above-mentioned problems, the recording disk reproducing apparatus of the present invention includes a disk case that houses a disk on which a signal is recorded and has an opening at one end to guide the disk. The insertion port has a fixing member provided on the left and right sides to fix one end of the disc case, and a fixing member provided on the left and right sides to fix one end of the disc case. The disc case includes a movable member that swings integrally with the disc case, and an elastic member that urges the movable member to a neutral position.

Function: With the above-described configuration, the case can be swung and displaced from the center of the upper and lower insertion slots by an external force applied to the disc case in the vertical direction, and the external force can be reliably detected by an external force detection device or the like. It is.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 and 2.

FIG. 1 is an external perspective view of a recording disk reproducing apparatus including an external force detection device, and FIG. 2 is a partially sectional side view showing the insertion opening in detail. The basic configuration of the recording disk reproducing device is the same as the conventional one.

In particular, one embodiment of the present invention will be explained using FIG. 2. At the insertion openings of the left and right insertion blocks 12, left and right fixing parts 12& are provided, which abut the disc case tip 1022L and fix the disc case 102, respectively. Further, the two movable members 5o having contact portions 60b that contact the disk case contact portion 102b are connected to the fulcrum 51.
It is attached to the upper and lower sides of the inside of the insertion rock 12 so as to be rotatable around the center. Further, two leaf springs 62 are also fixed to the insertion plotter 12, respectively, and are in contact with the contact portion 50a at one end of the movable member 6°.

The operation of the recording disk reproducing apparatus constructed as described above, particularly at the insertion opening section, will be explained. When the disc case 102 is inserted, if no external force is applied in the vertical direction,
The disc case 102 is held parallel to the disc insertion center by the fixed part 122L of the insertion slot and the case contact part 5ob of the movable member 50. case 102
When an external force P is applied to the case tip 102B, the case tip 102B is not displaced, but the case contact portion 10 is in contact with the movable member 5o.
2b is displaced, and the movable member 50 moves in the direction of arrow C around the fulcrum 51.
swing in the direction. At that time, the leaf spring 62 also changes elastically. The same applies when external force P' is applied, and movable member 6o is displaced in the direction of arrow d. In either case, external force p
, p' is removed to return to the original state.

Therefore, by using it together with the external force detection device shown in Fig. 5,
The switch lever 201.2 is activated by external forces P and P'.
02 can be changed smoothly and stably.

In the above embodiment, the movable member 50 and the leaf spring 52 are provided vertically, but they may be provided only in one direction where external force is frequently applied.

Effects of the Invention As described above, according to the present invention, the left and right fixing members fix one end of the disc case, and the fixing members are integrated with the disc case so as to swing the disc case in response to an external force applied to the disc case from above and below. By having an insertion port consisting of a movable member that swings automatically and an elastic member that urges the case to a neutral position, it improves plastic deformation and distortion of the case due to external forces applied to the case, and also prevents external forces from forming. When used in combination with a detection device, external force can be detected stably.

Furthermore, it is possible to provide a recording disk reproducing apparatus having an external force detection function that can maintain the case parallel to the insertion direction in a normal disk case insertion state and is highly mass-producible.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of a recording disk reproducing apparatus according to an embodiment of the present invention, FIG. 2 is a detailed partially sectional side view of the insertion opening thereof, and FIG. 3 is a conventional recording disk reproducing apparatus and external force. Fig. 4 is a side view of the insertion port, Fig. 5 is a perspective view of the external force detection device, Fig. 6 is a side view showing its operation, and Fig. 7 is a perspective view of the disk case. It is a diagram. 12... Insertion block, 60... Movable member, 62... Leaf spring, 102... Disk case. Name of agent: Patent attorney Toshio Nakao and 1 other person/Z
- J city block 5o - Movable member 5z - Leaf spring 102 - 11 Te > Sufu booth 2nd figure tO2b 50 Sea - - → - Rumor 1 - > - Tortoise 5 Figure 102 Tisfu 7 - Sufu Figure 6

Claims (1)

[Claims] A disk case having an opening at one end that stores a disk on which a signal is recorded is inserted and has an insertion port for guiding the disk case, and this insertion port has a disk case provided on the left and right sides to fix one end of the disk case. a fixed member, a movable member that swings integrally with the disc case so as to swing the disc case vertically in response to an external force applied to the disc case from above and below; A recording disc playback device comprising: a switch that detects a tilt in a direction; and an elastic member that biases the movable member to a neutral position.