JPH0355172Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a disk mounting device for a disk player installed in an automobile or the like.

``Prior Art'' Conventionally, as shown in Japanese Utility Model Application Publication No. 58-52666, a pair of rollers that sandwich a disk in and out, a mounted sensor arm that abuts the disk that moves to the turntable position, and a contact between the rollers. A disc loading technology has been developed that includes an actuating arm that performs release control.

``Problems to be Solved by the Invention'' The above-mentioned conventional technology controls the approach and separation of the rollers by switching the motor between forward and reverse directions, so it requires a combination of multiple switches and the setting of the timing for switching between forward and reverse directions. Because the motor is switched in reverse,
There were problems such as the need to use other means to attach and detach the disk to the turntable.

``Means for Solving the Problems'' However, the present invention consists of a pair of rollers that sandwich the disk and move it in and out, a mounting sensor arm that brings the disk into contact with the disk that moves to the turntable position, and control of the approach and separation of each of the rollers. The disk player is equipped with an actuating arm that controls the attachment and detachment of the disk to the turntable, and a clutch member that transmits the disk driving force of the roller at a predetermined torque or less is provided, as well as the approach and detachment of the roller and the attachment and detachment of the disk to the turntable. A roller arm that performs this is connected to the operating arm through a long hole, and a loose fitting portion is formed in the long hole. With the roller arm stopped, only the actuating arm is actuated and connected to the motor, and the roller arm and the actuating arm are interlocked by forced driving of the motor.

``Function'' Therefore, since each operation of approaching and separating the rollers and attaching/detaching the disc to/from the turntable is switched via a clutch member, etc., it is possible to easily reduce the number of installed switches and simplify switching timing settings. At the same time, the operating arms can be switched and operated with an extremely low load, the shock when switching the operating arms can be reduced, the roller arms can be operated smoothly, and malfunctions and abnormal noises of each arm can be easily prevented. It is something.

"Embodiments" Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Figure 1 is an enlarged view of the main parts, Figure 2 is a plan view of the whole, Figure 3 is a side view, Figure 4 is an explanatory diagram of operation, Figure 5
The figure is a cross-sectional side view, and shows a turntable in which a disk mounting plate 3 is attached to the chassis 1 of this machine through a cushioning rubber material 2 so as to be able to swing freely, and a disk 4 on which music, etc. is recorded as a digital signal is supported. 5 is provided on the front side of the upper surface of the plate 3, and a motor 6 for rotating the turntable 5 is fixedly installed on the lower surface side of the plate 3.

It is also provided with a laser pick-up 7 for reading the recording signal of the disk 4, and the pick-up 7 is slidably supported on two rails 8 and 9 fixed to the plate 3.
A screw shaft 10 for moving the screw shaft 10 and a motor 11 for rotating the screw shaft are provided on the plate 3, and the pickup 7 is linearly moved toward and away from the turntable 5.

Next, a clamper 12 for fixing the disc 4 to the turntable 5 is provided, and the clamper 12 is attached to the rear side of the plate 3 via support shafts 13, 13 so as to be able to rise and fall freely.
A chuck plate 14 made of a permanent magnet, which holds the disk 4 between the two, is freely rotatably supported by the end of a clamper 12 extending above the turntable 5, and when the clamper 12 is lowered, the chuck plate 14 is attached to the turntable 5. The disc 4 is fixed between these by adsorption.

Furthermore, upper and lower rollers 15 and 16 are provided for moving the disk 4 to the turntable 5 position, and the upper roller 15 is supported via a support shaft 17 on the front side of the machine chassis 1, and the lower roller 16 is supported by a roller arm 18. Each roller 1
Disc guide plates 19 and 20 are fixed in front of 5 and 16, and each roller 1 is inserted between each guide plate 19 and 20.
Disk 4 is inserted between 5 and 16, and gear 2
A disk loading/unloading motor 23 is interlocked and connected to the spindle 17 via the spindle 1 and the worm 22, and the motor 23 drives the upper roller 15 in the forward and reverse directions to move the disk 4 in and out.

Further, a large diameter gear 25 is always meshed with a small diameter gear 24 at one end of the support shaft 17, and the large diameter gear 25 is pivotally supported on the chassis 1 by a support shaft 26, and the torque is lower than the torque set by the frictional force of the clutch spring 27. A clutch plate 28, which is a rotating clutch member, is provided coaxially with the large diameter gear 25;
A small-diameter gear 29 is formed coaxially and integrally with the large-diameter gear 25, and a pin 30 that engages with the clutch plate 28 and a fan-shaped gear 31 that meshes with the small-diameter gear 29 are integrated at one end of the operating arm 32. The intermediate part of the arm 32 is pivotally supported on the machine chassis 1 via a support shaft 33, and the rotation of the large diameter gear 25 causes the actuation arm 32 to swing via the clutch plate 28, while the small diameter gear 29 is provided with a fan shape. The actuating arm 32 is configured to swing by the driving force of the roller 15 by engaging the gear 31.

Further, the intermediate portion of the roller arm 18 is pivotally supported by the machine chassis 1 via a support shaft 34, and the arm 18 is
The pin 35 is engaged with the elongated hole 36 of the actuating arm 32 to cause the arms 18 and 32 to swing in conjunction with each other.
a is formed at one end of the elongated hole 36, and the loose fitting portion 36 is movable by a certain width relative to the roller arm 18.
1 and 3, the roller arm 1 is connected to the actuating arm 32 via a, and with the rollers 15 and 16 supported at the disk 4 in/out position
8, an actuating arm 32 is displaceably provided, and by rotating a spring 37 connected to the actuating arm 32 or a clutch plate 28 in the disk ejection direction, the small diameter gear 2 is moved while keeping the rollers 15 and 16 close to each other.
9, and only the actuating arm 32 is connected via the clutch plate 28 so that the swinging force of the roller arm 18 does not become a swinging load on the actuating arm 32 until the gears 29 and 31 are engaged. It is configured to rotate.

On the other hand, a mounted sensor arm 38 is provided which causes the disc 4 to come into contact with and displace the disc 4 immediately before reaching the turntable 5 position. A spring 40 that causes the sensor arm 38 to protrude is provided at a position where it comes into contact with the sensor arm 38, and a regulating portion 38 that can be latched to the upper surface of the end of the actuating arm 32.
a is integrally formed with the sensor arm 38, and when the sensor arm 38 is projected to the disk 4 mounting position by the force of the spring 40, the restricting portion 38a is brought into contact with the actuating arm 32, and the actuating arm 32 is moved by the clutch plate 28. Preventing rocking, each gear 29,
31 is kept separated, and the rollers 15 and 16 move the disk 4 toward the turntable 5. When the disk 4 reaches the turntable 5, the sensor arm 38 is displaced by the disk 4, and this regulating portion 38a is away from the actuating arm 32;
The actuation arm 3 is rotated by the rotation of the clutch plate 28.
2 swings, each gear 29, 31 meshes, each arm 18, 32 swings, and the lower roller 16 descends to release the disk 4 feeding.

Further, a connecting arm 41 is provided which is connected to the roller arm 18 and moves in conjunction with the roller arm 18, and the arm 41
The intermediate part is supported by the machine chassis 1 via a support shaft 42, and the arm 41 is connected from below to a lift regulating arm 12a formed integrally with the clamper 12.
The roller arm 1 is brought into contact with the pin 43 at the other end.
8 swings in the downward direction of the lower roller 16, the clamper 12 is moved downward by the descent of the pin 43 and the chuck plate 14 is attracted to the turntable 5, while the lower roller 16 is raised and each roller 1
When the roller arm 18 is swung so that the roller arms 5 and 16 are brought close to each other, the pin 43
The clamper 12 is lifted by pushing up the lever a.

The present embodiment is constructed as described above, and by inserting the disk 4 between the upper and lower rollers 15 and 16 that are closely supported as shown in FIGS. 1 and 6, the upper roller 15 is rotated by the motor 23. Disk 4 is sent in. Next, as shown in FIG. 8, when the disk 4 comes into contact with the sensor arm 38 a little before reaching the turntable 5 position, the sensor arm 38 engaged with the actuating arm 32 is restricted as shown in FIG. The part 38a comes off as shown in FIG.
The clutch plate 2 is rotated by the rotational force of the roller 15.
8, only the actuating arm 32 is oscillated, and this fan-shaped gear 31 is engaged with the small diameter gear 29, and the actuating arm 32 is oscillated through each gear 29, 31 as shown in FIG.
2 further swings with a large torque, and in conjunction with this, the roller arm 18 swings. As a result, the lower roller 16 descends as shown in FIG. 7, and the disk 4
When the feeding operation is released, the clamper 12 falls down due to the rocking of the roller arm 18, and the disc 4 is placed on the turntable 5 by the chuck plate 14.
Fix by suction. Note that the operating arm 3
2, a switch 45 shown in FIG. 4 is turned off and the motor 23 is stopped.

Then, each motor 6, 11 is driven to rotate the disc 4 together with the turntable 5, and the pickup 7 is moved to read the signal from the disc 4, thereby playing back the disc 4. When this playback is completed, By reversing the motor 23, each arm 18, 32 is connected via each gear 29, 31, etc.
is swung in the opposite direction to the above, the clamper 12 is lifted, the lower roller 16 is raised, the rollers 15 and 16 are brought close to each other, and the disk 4 is ejected by this reversal. Note that when each gear 29, 31 is disengaged, only the actuating arm 32 is further swung in the reverse direction by reversing the clutch plate 28, and as the sensor arm 38 is returned by the spring 40, this regulating portion 3 is
8a engages with the actuating arm 32, and each gear 29, 3
The actuating arm 32 is supported so as to keep the two parts separated from each other.

"Effects of the invention" As is clear from the above embodiments, the present invention has a pair of rollers 15 and 1 that sandwich the disk 4 and move it in and out.
6, a mounting sensor arm 38 for contacting the disk 4 moving to the turntable 5 position, and an operating arm 32 for controlling the approach and separation of each of the rollers 15 and 16 and for controlling the attachment and detachment of the disk 4 to the turntable 5. The disc player includes a clutch member 28 that transmits the driving force of the roller 15 to the disc 4 at a predetermined torque or less, and
A roller arm 18 that brings the rollers 15 and 16 into and out of contact and attaches and detaches the disk 4 to the turntable 5.
is connected to the actuating arm 32 through the elongated hole 36, and a loosely fitting portion 36a is formed in the elongated hole 36, and when the actuating arm 32 is swung via the clutch member 28, the loosely fitting portion of the elongated hole 36 With the roller arm 18 stopped via the actuating arm 32
The roller arm 18 and the operating arm 32 are configured to be operated and connected to the motor 23, and the roller arm 18 and the operating arm 32 are interlocked by the forced drive of the motor 23.
The clutch member 2 switches the operations of approaching and separating the rollers 15 and 16 and attaching and detaching the disc 4 to the turntable 5.
8 etc., it is possible to easily reduce the number of switches installed and to simplify the switching timing setting, and the actuating arm 32 can be switched with an extremely low load. The roller arm 18 can be operated smoothly by reducing the size of the shock, and malfunctions of the arms 18 and 32 as well as generation of abnormal noise can be easily prevented.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is an enlarged view of the main parts, Fig. 2 is a plan view of the whole, and Fig. 3 is an enlarged view of the main part.
The figure is a side view, Figure 4 is an explanation diagram of the operation, Figure 5 is a sectional side view, Figures 6 and 7 are illustrations of lifting and lowering of the clamper by the roller arm, and Figure 8 is an explanation of the operation of the attached sensor arm by the disk. Figures 9 to 1
FIG. 1 is an explanatory diagram of the operation of the roller arm by the operating arm. 4... Disc, 5... Turntable, 1
5, 16...Roller, 18...Roller arm, 2
3... Motor, 28... Clutch plate (clutch member), 32... Operating arm, 36... Long hole,
36a... Loose fitting portion, 38... Mounted sensor arm.

Claims (1)

[Scope of utility model registration request] A pair of rollers 1 that sandwich the disk 4 and move it in and out
5, 16, and a mounting sensor arm 38 that abuts the disk 4 that moves to the turntable 5 position.
A clutch member that transmits the driving force of the roller 15 to the disk 4 at a predetermined torque or less in a disk player comprising an actuating arm 32 that controls the approach and separation of the rollers 15 and 16 and the attachment and detachment control of the disk 4 to the turntable 5. 28 is provided, and a roller arm 18 for bringing the rollers 15 and 16 into and out of contact and for attaching and detaching the disk 4 to and from the turntable 5 is connected to the operating arm 32 through a long hole 36, and a loose fitting portion is provided in the long hole 36. 36a, and when the actuating arm 32 is swung via the clutch member 28, the roller arm 18 is stopped via the loose fitting part 36a of the elongated hole 36, and only the actuating arm 32 is actuated to move the motor. 23, and the roller arm 18 and the operating arm 32 are connected to each other by forced driving of the motor 23.