JPH059862B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an automatic disk mounting device that automatically loads and removes a disk from a device body using a drive motor.

Conventional Structure and Problems Conventionally, an automatic disk mounting device has been used in which a drive motor automatically moves a disk horizontally to attach and remove the disk from the main body of the device. 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. The first drive means is operated to accommodate the pedestal supporting the disk inside the main body, and the second drive motor is rotated to mount the disk on the turntable by the second drive means. However, since such an automatic disk mounting device uses two drive motors and a drive means, it requires many parts, and has the disadvantage that assembly is time-consuming and increases costs. Another problem was that it was difficult to make the device smaller and lighter. 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 continue for a long time. If this happens, it not only shortens the life of the drive motor, but also poses a safety problem in that if fingers or the like are caught, they may be injured.

Purpose of the Invention The present invention solves the above-mentioned drawbacks of the conventional technology, and has a simple structure that allows for smooth and reliable operation of attaching and removing a disk to the main body of the device. To provide an automatic disk mounting device which can maintain safety by quickly reversing a drive motor when the disk is inserted.

Structure of the Invention In order to achieve the above object, the present invention includes a movable member that is slidably provided horizontally, and a disk that is provided to be able to slide vertically with respect to the movable member. The holding member is held by the movable 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 linear movement driven by the power of the drive motor. a drive member to be driven; a biasing means provided on the movable member to bias the drive member against the movable member; and a biasing means rotatably supported by the movable member and provided on the drive member. a first cam portion that engages with the first cam portion;
and a second detection switch that detects the position of the movable member. When the switch is moved to the position, the second detection switch is controlled on and off, and at the same time the first detection switch
The detection switch is moved away from the first cam portion provided on the drive member, and then only the drive member continues to operate, and in conjunction with this operation, the holding member is operated, so that the drive member is in a predetermined position. When the movable member reaches the target position, the second cam portion provided on the drive member controls the first detection switch on and off to stop the drive motor and attach the disk to the main body of the device. When stopped midway, 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 reverse the drive motor. It is something that can be done.

DESCRIPTION OF EMBODIMENTS The present invention will be described with reference to drawings of embodiments.
The drawing shows one embodiment of the present invention, and in the drawing, 1 is a disk, 2 is a substantially U-shaped holding member for holding the disk 1, and a cam inclined in the circumferential direction is provided on the back surface of the holding member. part 2a and sliding shaft 2b,
Three protrusions 2c are provided on the outer peripheral surface so as to be freely curved in the radial direction and protrude to the outside. Reference numeral 3 denotes a pedestal for supporting the holding member 2, and a cam portion 2 provided on the holding member 2 is provided on the outer peripheral surface of the circular recess.
a guide cam surface 3 for sliding the protrusion 2c provided on the holding member 2 inclined in the same direction as a;
a, and a protrusion 3b and a rotation shaft 3c for rotatably holding a sphere 4 for sliding a cam portion 2a provided on the holding member 2 are provided on the surface of the circular recess. Reference numeral 5 denotes a rotating cam rotatably supported by a rotating shaft 3c provided on the pedestal, and is approximately U for sliding the sliding shaft 2b provided on the holding member 2.
It is provided with a letter-shaped cam groove 5a and a sliding arm 5b, and is biased against an abutment shaft 3f provided on the pedestal 3 by a spring 6 provided between the cam groove 5a and the pedestal 3. Reference numeral 7 denotes a movable member for supporting the pedestal 3, and the pedestal 3 is fastened and fixed to the movable member 7 with screws 37. This movable member 7 has substantially V-shaped long grooves 7a for guiding provided in parallel near both ends, and has a lock shaft 36 protruding from the back surface thereof. Reference numeral 8 denotes a base for supporting the movable member 7, and is fastened and fixed to the chassis 39 with screws 38. On the surface of this base 8, substantially V-shaped long grooves 8a are provided substantially parallel to and opposite to the long grooves 7a provided in the movable member 7. Further, a drive motor 9, a driven pulley 10, a transmission gear 11, and a drive gear 12 are attached to its side surface. 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. 1
The signal is transmitted to the drive gear 12 via the transmission gear 11 that meshes with the gear 0a. Further, a portion of both side surfaces are made to protrude upward, and a rotation groove 8b is provided at each end thereof. 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 freely holding retainer 17 is a pressing plate that presses the sphere 16 held by the retainer 15 into a long groove 8a provided in the base 8, and is fastened to the base 8 with screws 40. A pair of spheres 16, a retainer 15 for holding the spheres 16, and a press plate 17 are each provided. Therefore, the movable member 7 is linearly slidable with respect to the base 8 according to the long groove 8a provided in the base 8. Reference numeral 18 denotes a drive member attached to the movable member, which passes through a substantially T-shaped through hole provided in the movable member 7 and drives the movable member 7.
A substantially T-shaped sliding piece 18 slidably provided on the surface of
a, 18b are protrudingly provided, and both side surfaces thereof are slidably provided on the inner surface of the movable member 7 and the side surface of the approximately T-shaped through hole, so that the movable member 7 can slide in the same direction as the sliding direction of the movable member 7. Free to move. In addition, the sliding piece 18
In the vicinity of b, there is a cam groove 18c in a protruding part passing through one of the substantially T-shaped through holes of the movable member 7, a small rack part 18d, a first cam part 18e, and a second cam part 18e behind it.
A sliding arm is provided on the rotary cam 5 and has a cam portion 18f and a cam portion 18g on the lower surface thereof, and the other end thereof passes through a transparent hole provided in the movable member 7 and a transparent hole provided in the pedestal 3. Drive shaft 18 that engages with 5b
It is equipped with h. Also, on the bottom surface is the drive gear 12.
A drive rack 18i is provided which meshes with the drive gear 12, and the power transmitted to the drive gear 12 is transmitted to the drive rack, thereby driving the drive member 18 linearly. Reference numeral 19 denotes a biasing gear attached to the movable member, which engages with a small rack portion 18d provided on the drive member 18, and a biasing gear 19 provided between the movable member 7 and the spring 2.
0, and this rotational force is transmitted to the small rack portion 18d to urge the drive member 18 against the through-hole end 7b of the movable member 7. The biasing force that biases the driving member 18 against the movable member 7 by the biasing means constituted by the biasing gear 19 and the spring 20 is applied to the long groove 8a provided in the base 8 by the movable member. Therefore, since the sliding resistance is greater than the sliding resistance during sliding movement, the movable member 18 can move together with the movement of the driving member 18. A lock arm 21 is rotatably supported by the base 8, and has one end engaged with a cam portion 18g provided on the drive member, and the other end engaged with a lock shaft 36 provided on the movable member. An engaging portion 21a is provided, and a wire spring 22 provided between the base 8 and the locking shaft 36 is provided at all times.
is biased out of engagement with the 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 a cam groove 1 provided in the drive member 18 at one end.
8c, a clamper 26 for pressing the disc 1 against the turntable 25 is provided at the other end, and a contact shaft 27 for contacting the base 8 is attached to the side surface. A spring 28 provided between the two clampers 26 is biased to lift the clamper 26 upward, and at the same time, the abutment shaft 27 is pressed against the base 8 and becomes stationary.
A switch base 29 is rotatably held by the movable member, and is stopped by a wire spring 30 provided between the movable member and a portion of the movable member. Reference numeral 31 denotes a first detection switch attached to the switch base 29, and is attached so as to operate on the first cam portion 18e provided on the drive member 18 to engage the bar. 32 is a second detection switch attached to the base 8, and is composed of a central operating contact piece 32a and contact pieces 32b and 32c provided on both sides separated from each other. It is designed to be turned on and off by contact pieces 3d and 3e. 33, 34, 35
is a shaft that rotatably supports the driven pulley 10, the transmission gear 11, and the drive gear 12. Reference numerals 42 and 43 are shafts that rotatably support the biasing gear 19 and the switch base 29.

The operation of the automatic disk mounting device of this embodiment configured as described above will be explained below.

Now, as shown in FIG. 8, when the disk 1 is placed on the holding member 2 and the opening/closing button (not shown) is pressed, the drive motor 9 is driven and the drive member 18 moves to the movable member 7.
Follow the long groove 8a provided in the base 8 integrally with the arrow A.
driven linearly in the direction. When the driving member 18 and the movable member 7 move together in the direction of arrow A and move to the position shown in FIG. 32
a to bring it into contact with the contact piece 32b, and
The first detection switch 31 is rotated in the direction of arrow E by operating the first detection switch 32 and, at the same time, bringing the switch base 29 into contact with the base 8, thereby rotating the first detection switch 31 in the direction of the arrow E. When the movable member 7 is moved away from the first cam portion 18e provided on the base 8, the movable member 7 comes into contact with a 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 arrow A along the movable member 7. The cam portion 18g is a lock arm 21 provided on the base 8.
and rotate it in the direction of arrow B to engage the engaging portion 21a provided at the tip of the lock arm 21 with the lock shaft 36 provided on the movable member 7,
Further, the drive shaft 18h provided on the drive member 18 engages with the sliding arm 5b provided on the rotary cam 5 to rotate it, so that it engages with the cam groove 5a provided on the rotary cam 5. The holding member 2 provided on the sliding shaft 2b is rotated in the direction of arrow C along the sliding surface provided between the holding member 2 and the pedestal 3, and is rotated downward along the sliding surface. move it. 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 25 during the downward movement of the holding member 2. On the other hand, a cam shaft 24 provided on the clamp plate 23 engages with the cam groove 18c provided at the tip of the drive means, and the cam groove 18c is engaged with the cam shaft 24 provided on the clamp plate 23.
The clamp plate 23 is moved along the slope in c.
is rotated in the direction of arrow D, the clamper 26 provided at the tip of the clamp plate 23 moves together with the clamp plate in the direction of arrow D and is placed on the upper surface of the disk 1 placed on the turntable 25. and causes the turntable 25 to press the disc 1. When the driving member 18 moves to the position shown in FIG.
The operation is completed when the cam portion 18f operates the first detection switch 31 to stop the drive motor 9. The shape 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, so that the lock arm 21 is The driving member 18
After being rotated in the direction of arrow B by the cam portion 18g provided at the cam portion 18g, 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 reversely rotated by operating an opening/closing button (not shown), and the drive member 18 is moved in the direction opposite to the arrow A direction. The clamp plate 23 is rotated in the direction opposite to the direction of arrow D to move the clamper 26 away from the disk 1. The rotary cam 5 responds to the operation of the drive shaft 18g provided in the drive member 18 in parallel therewith.
is rotated by the spring 6 in the direction opposite to the direction of arrow B, and in conjunction with this, the holding member 2 is rotated in the direction of arrow C.
The disc 1 is lifted from the turntable 25 by moving upward while rotating in the opposite direction. Thereafter, the cam portion 1 provided on the drive member 18
8g 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 direction of the arrow D, releasing the engagement with the lock shaft 36 provided on the movable member 7. Therefore, the movable member 7 becomes movable and the drive member 18
After moving to the through-hole end 7b of the movable member 7, it moves together with the movable member 7 in the direction opposite to the arrow A. When the movable member 7 moves and the switch base 29 separates from the base 8, the switch base 29 is rotated by the wire spring 30 in the direction opposite to the direction of arrow E, and the first detection switch attached thereto is rotated by the wire spring 30. 31 is engaged with the first cam portion 18e provided on the drive member 18. The movable member 7
When the switch moves to the position shown in FIG. 1, the contact piece 3e provided on the pedestal 7, which moves together with the movable member 7, operates the operating contact piece 32a of the second detection switch 32 and contacts the contact piece 32c. By making contact and operating the second detection switch 32 to stop the drive motor 9, the ejecting operation of 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, an object may be inserted between the main body 41 and the pedestal 3 or the movable member 7, causing the movable member 7 to operate. When the drive member 18 stops, only the drive member 18 continues to operate, and the first cam portion 18 provided on this drive member 18
By operating the first detection switch 31 and reversing the drive motor 9, e moves the movable member 7 in the opposite direction, and the contact piece 3 provided on the pedestal 3 moves in the opposite direction.
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, when the driving member is urged against the movable member to move horizontally together, and when the movable member stops at a predetermined position, only the driving member moves along the movable member. moves, and in conjunction with this movement, the holding member slidably provided on the movable member is rotated and moved up and down, so that the movable member is moved by one driving means. The holding member can be moved in the horizontal direction and in the vertical direction. Furthermore, since the horizontal movement and the vertical movement are performed while one of the movements is stopped, reliable operation is possible. Furthermore, by making two movements possible with one linear movement, it is possible to smoothly mount and remove a disk with a simple structure. In addition, one detection switch is configured to detect the position immediately after the operation of the drive member relative to the movable member and the position at which the operation is completed, so that when an object is caught between the main body and the moving part, the drive motor 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 finger or the like is caught, it can be quickly released, which is effective for safety.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an embodiment of the automatic disk mounting device of the present invention, FIG. 2 is a plan view of the device, FIG. 3 is a front sectional view of the device, and FIG. 4 is a side view of the device.
Fig. 5 is an enlarged view of the main parts of the holding member, Fig. 6 is a cross-sectional view of the main parts of the holding member and the pedestal, Fig. 7 is an exploded perspective view of the main parts, and Figs. 8 to 10 are of the same device. The operation explanatory diagram, FIG. 11, is a flowchart showing the disk mounting operation and safety operation of the same device. DESCRIPTION OF SYMBOLS 1... Disc, 2... Holding member, 3... Pedestal, 7... Movable member, 8... Base, 18... Drive member, 18e... First cam portion, 18f... Second
cam portion, 19, 20... biasing means, 31... first
detection switch, 32... second detection switch.

Claims (1)

[Claims] 1. A movable member that is provided to be slidable horizontally, a holding member for holding a disk that is provided to be able to slide up and down with respect to the movable member, and a disk that is held by the movable member and is attached to the movable member. A drive member which is slidably provided in the same direction, has a first cam part at one end for controlling on/off of a switch, and a second cam part behind the first cam part, and is linearly driven by the power of a drive motor. , a biasing means provided on the movable member so as to bias the drive member against the movable member, and a first cam portion rotatably supported by the movable member and provided on the drive member; a first detection switch that detects the position of the movable member, and a second detection switch that detects the position of the movable member, and operates the movable member integrally in accordance with the movement of the drive member until the movable member reaches a predetermined position. When moving, the second detection switch is controlled on and off, and at the same time the first detection switch is moved away from a first cam portion provided on the drive member, after which only the drive member continues to operate, In conjunction with this operation, the holding member is operated, and the second cam portion provided on the drive member controls the first detection switch on and off to stop the drive motor;
When the movable member stops before reaching a predetermined position, only the drive member continues to operate, and the first cam portion provided on the drive member controls on/off of the first detection switch. An automatic disk mounting device characterized in that the drive motor is configured to rotate in reverse.