JPS6050749A - Automatic disk loading device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an automatic disk loading device that automatically loads and unloads disks into and from a device body using a drive motor.

Conventional configuration and its problems Conventionally, the disk is moved horizontally and attached to the device body,
An automatic disk loading device is used in which the unloading operation is automatically performed by a drive motor. In the conventional device, a first drive motor and drive means are provided to move the disk horizontally, and a second drive motor and drive means are provided to move the disk up and down, and the first drive motor is rotated. The first drive means is operated to accommodate the pedestal supporting the disc inside the main body, and the second drive motor is rotated to mount the disc on the turntable by the second drive means. However, since such automatic disk loading devices use two drive motors and drive means, they require many parts, are time-consuming to assemble, and are expensive. There was a problem in that it was difficult to reduce the size and weight. Furthermore, if something gets caught between the main body and the pedestal while the pedestal is moving inside, and the pedestal stops, the maximum load will be applied to the drive motor that operates it, and this state will last for a long time. If this continues, it will not only shorten the life of the drive motor, but also damage your hands and fingers if they get caught.
0749(2) The present invention has the problem of safety-1- such as the disk being moved due to We have proposed an automatic disc loading device that can smoothly and reliably load and unload discs, and can quickly reverse the drive motor to maintain safety when a finger or other object is caught. -1,H.

Structure of the Invention In order to achieve the above object, the present invention includes a movable part that is horizontally movable, and a disk that holds a disk that is slidable up and down with respect to the movable member. a holding member, which is held by the rotatable member and is slidably provided in the same direction as the movable member, has a first cam portion at one end and a second cam portion behind it, and has a drive motor. Powered by
1: A linearly driven drive unit, a step provided on the movable unit so as to bias this drive member into a two-way rotating unit system, and a movable member. an automatic disk loading device comprising: a first detection switch rotatably supported by the drive member and engaged with a first cam portion provided on the drive member; and a second switch configured to detect the position of the movable member. 2. The movable member is integrally operated in accordance with the movement of the driving member, and when the movable member moves at a predetermined position, the second detection switch is controlled to be turned on and off, At the same time, the first
the detection switch is moved away from a first cam portion provided on the drive member, after which only the drive member continues to operate,
The holding member is operated in conjunction with this operation, and when the drive member reaches a predetermined position, the second cam portion provided on the drive member controls on/off the first detection switch. When the drive motor is stopped and the disk is mounted on the device body, and the movable member stops midway, only the drive member continues to operate, and the first cam portion provided on the drive member The drive motor can be reversed by controlling the first detection switch on and off.

6・-1 Description of examples The present invention will be explained with reference to drawings of embodiments.

The drawings show one embodiment of the present invention, and in the drawings, 1
is a disk, and 2 is an abbreviation U for holding the disk 1 above.
It is a letter-shaped holding member, and has a cam part 2a inclined in the circumferential direction, a sliding member 111112b, and an abutment shaft 2C protruding from the back surface thereof, and a cam part 2a protruding from the outer peripheral surface so as to be freely curved in the radial direction. Protrusion 20% - 3 protruding parts 03 are the pedestals that support the holding member 2, and the outer peripheral surface of the circular recess is inclined in the same direction as the cam part 2a provided on the holding member 2. A guide cam surface 3a for sliding the protrusion 2C provided on the holding member 2 is provided, and a sphere 4 for sliding the cam portion 2a provided on the holding member 2 on the surface of the four circular parts. A protruding portion 3b and a rotating shaft 3C are protrudingly provided to be rotatably held. Reference numeral 5 denotes a rotating cam rotatably supported by a rotating shaft 3C provided on the pedestal, and a substantially U-shaped cam groove 6a for sliding the sliding shaft 2b provided on the holding member 2. A sliding arm 5b is provided, and the contact shaft 3C provided on the pedestal 3 is biased by a spring 7-26 provided between the pedestal 3 and the pedestal 3. Reference numeral 7 denotes a movable member for supporting the pedestal 3, and the pedestal 3 is fastened to the movable member 7 with screws 37. A substantially inverted V-shaped long groove 7a for guiding is provided in parallel near both ends of the movable member 7&'i,
Moreover, a lock shaft 36 is provided protruding from the back surface thereof. Reference numeral 8 denotes a base for supporting the movable member 7, which is fastened to the chassis 39 by screws 3B. This base 8
On the surface of the movable member 7, a substantially V-shaped long groove 8a is provided substantially parallel to the long groove 7a provided in the movable member 7.

On its side, there is a drive motor 9, a driven boo IJ 10° transmission gear 11. A drive gear 12 is attached.

The power of the drive motor 9 is transmitted to a gear 10a rotating integrally with the driven pulley 10 via a transmission belt 14 installed between a motor pulley 13 attached to the main shaft and the driven pulley 10. The signal is transmitted to the drive gear 12 via the transmission gear 11 which engages with the transmission gear 10 and 10. Parts of both side surfaces of the fold are made to protrude upward, and rotation grooves 8b are provided at the tips of the two sides.

15 rotates a sphere 16 provided between the substantially V-shaped long groove 7a provided on the movable member 7 and the substantially V-shaped long groove 8a provided on the base 8, and on the upper surface of the movable member 7. A sphere 1 held by the retainer 16 is freely held.
A push-up plate that presses against a long groove 8a provided in the base 8 is fastened to the base 8 with screws 40.

A pair of spheres 16, a tenor 15 for holding the spheres 16, and a push-up plate 17 are provided. Therefore, the movable member 7 is attached to the long groove 8 provided in the base 8 with respect to the base 8.
It is slidable linearly according to a.

Reference numeral 18 denotes a drive unit attached to the movable member, which is slidably provided on the surface of the movable member 7 through a substantially T-shaped through hole provided in the movable member plate. sliding piece 1
82L and 18b are provided protrudingly, and both sides thereof are connected to the movable member 7.
Since it is slidably provided on the inner surface and the side surface of the approximately T-shaped through hole, it is slidable in the same direction as the sliding direction of the movable member 7.

In addition, the movable member 79t° is located near the sliding piece 18b.
- A cam groove 18 is formed in the protrusion that passes through the approximately T-shaped through hole on one side.
It has a C1 small rack part 18d, a first cam part 18e, a second cam part 18f behind it, a cam part 18g on the lower surface thereof, and a through hole provided in the movable member 7 at the other end and a pedestal. The rotary cam 5 is provided with a drive shaft 18h that passes through a through hole provided in the rotary cam 3 and engages with a sliding arm 5b provided in the rotary cam 5.

Also, on the lower surface is a drive rack 1 that meshes with the drive gear 12.
8i is provided, and the power transmitted to the drive gear 12 is transmitted to the drive rack, thereby driving the drive member 18 linearly.

19 is a biasing gear attached to the movable member,
It engages with a small rack portion 18d provided on the drive member 18, receives rotational force from a spring 20 provided between it and the movable member 7, and transfers this rotational force to the small rack portion 18d.
d to bias the driving member 18 against the through-hole end 7b of the movable member 7. The biasing force for biasing the drive member 18 against the movable member 7 by the biasing means constituted by the biasing gear 19 and the spring 20 is
0 ・- Since the sliding resistance J when the rotation member slides along the long groove 8a provided in the base 8 is large]7,
The movable member 1B can move together with the movement of the drive member 18. Reference numeral 21 denotes a lock arm rotatably supported on the base 8, one end of which engages with a cam portion 1sf provided on the drive member, and the other end engaged with a cam portion 1sf provided on the movable member. A retaining portion 21a that engages with the lock shaft 36 is provided, and a wire spring 22 provided between the base 8 and the above-mentioned base 8 constantly
1. It is urged to disengage from the lock shaft 36.

Reference numeral 23 denotes a clamp plate which is inserted through the opening of the rotation groove 8b provided in the base 8 and rotatably supported by the rotation groove 8b, and has one end connected to the cam groove 18C provided in the drive member 18. It has a camshaft 24 that engages, a clamper 26 that presses the disc 1 against the turntable 25 at the other end, a contact shaft 27 that abuts against the base 8 is attached to the side surface, and a contact shaft 27 that abuts the base 8 is attached to the side. The clamper 26 is biased to be lifted to one side by a spring 28 provided in the clamper 26, and at the same time, the abutting shaft 26 is pressed against the base 8 so as to stand still.
-I'm looking forward to it. Reference numeral 29 denotes a switch base which is rotatably held by the movable member, and reference numeral 031 is the switch base which is stopped by being biased by a part of the movable member by a wire spring 3o provided between the movable member. The first attached to 29
The detection switch is attached to operate the first cam portion 186 provided on the drive member 18 to engage the bar. Reference numeral 32 denotes a second detection switch mounted on the base 8, which is composed of a central operating contact piece 32a and contact pieces 32b and 320 provided on both sides separated from each other. It is turned on and off by contact pieces sd and se. 33, 34° 35 is the driven boob IJ101 transmission gear 11. This is a shaft that rotatably supports the drive gear 12. 42.43 is the lock arm 21. This is a shaft that rotatably supports the switch base 29.

The operation of the automatic disk loading apparatus of this embodiment configured as described above will be described below.

When the disk 1 is placed on the holding member 2 as shown in FIG. 8 and the opening/closing button (not shown) is pressed, the
50749 (4) By driving the movable motor 9, the drive member 18 is linearly driven in the direction of the arrow according to the long groove 8a provided in the base 8 integrally with the movable member 7. When the driving member 18 and the movable part Amagi move together in the direction of the arrow and move to the position shown in FIG.
operating the operating contact piece 32a to contact the contact piece 32b,
” - operating the second detection switch 32 and at the same time touching the switch base 29 to the base, the switch base 29 is rotated in the direction of arrow E;
The first detection switch 31 is moved away from the first cam portion 18e provided on the drive member 18, and the movable member 7
comes into contact with the stop piece 8C provided on the base 8, and the movable member 7 stops moving. Although the movable member 7 stops moving, the drive motor 9 continues to rotate, and the drive member 18 further moves in the direction of the arrow along the movable member 7. Provided cup part 1B
g engages with the lock arm 21 provided on the base 8 and rotates the arm in the direction of arrow B, causing the lock arm 211 to rotate.
3. The engaging portion 21a provided at the tip of the t + - engages with the lock shaft 36 provided on the movable member 7, and the drive shaft 18h provided on the drive member 18 engages with the sliding shaft 36 provided on the rotary cam 6. Since it engages with the moving arm 5b to rotate it, the holding portion η2 provided on the sliding shaft 2b that engages with the cam groove 6a provided on the rotating cam 5 is connected to the holding member 2 and the pedestal 3. It is rotated in the direction of arrow C along a sliding surface provided between the two and moved downward along the sliding surface. Since the holding member 2 is moved further below the surface of the turntable 25, the disk 1 is placed on the surface of the turntable 250 during the downward movement of the holding member 2. On the other hand, the cam shaft 24 provided on the clamp plate 23 engages with the cam groove 180 provided at the tip of the drive means and moves along the slope in the cam groove 180, moving the clamp plate 23 in the direction of the arrow. Therefore, the clamper 26 provided at the tip of the clamp plate 23 moves together with the clamp plate in the direction of the arrow, and is placed on the upper surface of the disc 1 placed on the turntable 25, and the clamper 26 provided at the tip of the clamp plate 23 moves in the direction of the arrow, and is placed on the upper surface of the disc 1 placed on the turntable 25. - Push up 17 the disc 1 on the table 25.

When the drive member 18 moves to the position shown in FIG. 3, the second cam portion 18f provided on the drive member 1B operates the first detection switch 31 to stop the drive motor 9. The operation is complete.

The shape of the portion of the drive member 18 that slides on the lock arm 21 after the lock arm 21 is rotated in the direction of arrow B is formed approximately equal to the movement locus of the drive member 18. After the lock arm 21 is rotated in the direction of arrow B by the cam portion 18h provided on the drive member 18, it comes into contact with the drive member 18 but does not rotate.

On the other hand, when taking out the disk 1, the drive motor 9 is reversed by operating an opening/closing button (not shown), and the drive member 18 is moved in the opposite direction to the direction of the arrow. The clamp plate 23 is rotated in the direction opposite to the direction indicated by the arrow, and the clamper 26 is separated from the disk 1. In parallel thereto, the driving member 1
According to the operation of the drive shaft 18g provided in the rotary cam 5,
1 5 /-: is rotated by the spring 6 in the direction opposite to the direction of the arrow B, and in conjunction with this, the holding member 2 is rotated in the direction opposite to the direction of the arrow C and moved upward, so that the Lift up the disc 1 from the turntable 25. Thereafter, the cam portion 18f provided on the drive member 18 described below is separated from the lock arm 21, and the lock arm 21 is rotated by the wire spring 22 in the direction opposite to the arrow direction, and the lock shaft provided on the movable member 7 is rotated by the wire spring 22. 31. Therefore, the movable member 7 becomes movable, and after the drive member 18 moves at the through-hole end 7b-1 of the movable member 7, it moves together with the movable member 7 in the direction opposite to the arrow A. When the movable part of the switch base 29 is separated from the base 8, the switch base 29 is rotated by the wire spring 3o in the direction opposite to the direction of the arrow E, and the first detection switch attached thereto is rotated by the wire spring 3o. 31 is engaged with the first cam portion 186 provided on the drive member 18. When the movable member 7 moves to the position shown in FIG.
49(5) By operating the operation contact piece 328L of the second detection switch 32 to bring it into contact with the contact piece 32C, and operating the second detection switch 32 to stop the drive motor 9,
The operation for ejecting the disk 1 is completed.

In addition to the normal loading and unloading operations described above, during the operation of moving the disk 1 into the main body 41,
When the movement of the movable part 7 stops due to something being inserted between the movable member 7 and the pedestal 3, only the drive member 18 continues to operate, and the first
The force 1 of the movable part 4 and the part 18e operate the first detection switch 31 to reverse the drive motor 9.
4. Move the end in the opposite direction and attach the contact piece 3 provided on the pedestal 3.
e operates the second detection switch 32 to stop the drive motor 9.

Effects of the Invention As described above, according to the present invention, the drive unit A is biased against the movable member to move horizontally together, and when the rotating member stops at a predetermined position, the movable member is 171', - Only the above-mentioned driving member moves, and in conjunction with this movement.''
Since the structure is such that the holding member slidably provided on the movable member is rotated and moved up and down, one drive means can move the movable member in the horizontal direction and move the holding member in the horizontal direction. It can be moved up and down. Since horizontal movement and vertical movement are each performed with one of the movements stopped, reliable operation is possible. Furthermore, by making two movements possible with one linear movement, it is possible to smoothly load and unload a disc with a simple structure. In addition, one detection switch is configured to detect the position immediately after the movement of the drive member relative to the movable member and the position at which the movement is completed, so that when an object is caught between the main body and the moving part, the drive morph is immediately activated. Since the rotation is reversed, it is possible to prevent a large load from being applied to the drive motor, and even if a broken finger or the like is caught, it can be quickly released, which is effective for safety.

[Brief explanation of drawings]

FIG. 1 shows one side 18 of the automatic disk loading device of the present invention.
- External perspective view showing an example; Figure 2 is a plan view of the device;
The figure is a front cross-sectional view of the same, Figure 4 is a (I11 side view), Figure 5 is an enlarged view of the main part of the holding member, Figure 6 is a cross-sectional view of the main part of the holding member system and the pedestal, and Figure 7 is the same. 1 perspective view of the main parts of the disassembled thread, Figure 8~
Figure 10 shows the operation β of the same device? 1 and 11 are flowcharts 1 and 2 showing the disk loading operation and safety operation of the same apparatus. 1... Disc, 2... Holding part N'',
3...Pedestal, 7...Movable member, 8.
... Base, 18 ... Drive member, 18e.
...First cam part, 18f... Second cam part, 19.20... Biasing means, 31...
...First detection switch, 32...Second detection switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure JP-A-Sho GO-50749 (6) Figure 4 Figure 5 Figure 9 Figure 7 Figure 10

Claims (1)

[Scope of Claims] A movable member that is provided to be slidable horizontally, a holding member that is provided to be able to slide up and down relative to the movable member for holding a disk, and a disk that is held by the movable member. The movable member is provided slidably in the same direction as the movable member, and has a first cam part at one end for controlling the on/off switch and a second cam part behind it, and is linearly driven by the power of the drive motor. a driving member provided on the movable member to urge the driving member against the movable member; and a biasing means provided on the movable member rotatably supported by the movable member. a first detection switch that engages with the first cam portion; and a second detection switch that detects the position of the movable member; the movable member is integrally operated according to the movement of the drive member; When the member moves to a predetermined position, the second detection switch is turned on and off, and at the same time the first detection switch is turned on and off.
2'2 The detection switch is moved away from the first cam portion provided on the drive member, after which only the drive member continues to operate, and in conjunction with this operation, the holding member is operated,
It is written in - that the drive motor is stopped by controlling the second detection switch on/off with the second cam part provided on the drive member, and the drive motor is stopped by the time the movable member reaches a predetermined position. Only the drive member continues to operate, and the first cam portion provided on the drive member controls the first detection switch on and off to turn the drive motor.