JPH0687337B2 - Day-scrolling device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc loading device that has a tray for storing a compact disc or the like in a main body and allows a disc driver stored in the tray to be mounted on a disc driver.

2. Description of the Related Art Generally, as shown in FIG. 6, a disk loading device for mounting a disk housed in a tray to a disk driver is designed so that the driving force of a motor 1 is transferred from a pulley 2 to a belt 3
It is configured such that the tray 5 is transmitted to the gear pulley 4 via the gear pulley 4 and the gear 4a coaxial with the gear pulley 4 meshes with the rack 6 provided on the tray 5 to transfer the tray 5.
There was a method of projecting from the main body 7 and mounting a disc, storing it in the main body 7 again, loading it into the disc driver, and playing.

The problem to be solved by the invention is that the cost is very high in such a disk loading device because a motor is used, and in the case of products with DC power supply specifications such as batteries, when the batteries are exhausted There was a problem that the voltage was reduced and the disc could not be loaded by the tray.

The present invention solves the above-mentioned conventional problems. By using a tension spring as a driving source for loading, the cost is significantly reduced, and the loading device is not affected by the reduced voltage in the DC power supply specification at all. It is intended to provide.

Means for Solving the Problems In the disk loading device of the present invention, a slidable damper gear is engaged between a fixed rack and a rack formed on the tray, and when the damper gear is moved by a tension spring, the movement of the tray moves. The feature is that the amount is set to be twice the movement amount of the damper gear.

When the tray is ejected from the main body, the disc loading device of the present invention is provided with a movable slider having a damper gear fitted between the rack fixed to the loading chassis and the rack formed on the tray. By placing a tension spring on the front end of the chassis and the rear end of the slider, the tray is ejected with twice the amount of movement of the slider. Since it can be performed at a low speed, it is possible to realize a significant cost reduction without degrading the quality even when compared with the conventional motor loading method. Also, when storing the ejected tray in the main body, if the tray is manually pushed to the position where the disc holder and the disc clamper held in the inclined groove formed in the tray hit the stopper formed in the loading chassis, The disk holder and the disk clamper move downward substantially at the same time by the horizontal operation force of the tray, so that the disk can be stably mounted on the turntable held by the loading chassis.

EXAMPLES Hereinafter, the drawings of a loading device according to an example of the present invention will be described.

1 to 4, 8 is a cabinet, 9 is a loading chassis attached to the cabinet 8, 10 is a slider movably held by the loading chassis 9 by a shaft 11 and a snap ring 12, and 13 is a slider 10. The attached damper gear has grease applied inside, and the gear rotates at a low speed. 14 is a driving tension spring hung on the front end 15 of the loading chassis and the rear end 16 of the slider, 17 is a left tray guide attached to the loading chassis 9, 18 is a tray groove formed in the left tray guide 17, and 19 is a tray groove.
Is an engaging part formed in the left tray groove, 20 is a right tray guide attached to the loading chassis 9, 21 is a tray groove formed in the right tray guide 20, and 22 is an engagement formed in the right tray guide 20. Part, 23 is the right tray guide 20
It is a rack formed in the above and meshes with the damper gear 13. 24 is a tray, and 25 is a left convex band formed on the tray 24, which is guided to the left tray groove 18. Reference numeral 26 is a right side convex band formed on the tray 24, and is guided to the right side tray groove 21. 27
Is a rack formed on the right side convex band 26, and the damper gear
It meshes with 13. Reference numeral 28 denotes a left elastic claw formed on the tray 24, which engages with the engaging portion 19 and serves as a stopper when the tray 24 is ejected. Reference numeral 29 denotes a right elastic claw formed on the tray 24, which engages with the engaging portion 22 and serves as a stopper at the time of ejecting the tray 24. 30 is a disc, 31 is a disc holder for holding the disc 30, 32 is a convex shaft having the disc holder 30 formed on its side surface, and an inclined groove 33 formed in the tray 24
Will be guided to. Reference numeral 34 is a tension spring hung on the disc holder 31 and the tray 24, and biases the disc holder 31 above the inclined groove 33. Reference numeral 35 is a notch formed in the tray 24 so that a finger can be inserted when the disk 30 is taken out. Reference numeral 36 is a traverse held by the loadin chassis 9, an optical pick 37 for signal detection and a drive motor 38 are attached, 39 is a turntable press-fitted into the drive motor 38, and a disc centering ring 40 is a spring. The reference numeral 42 designates a disc clamp ring, which is floated and attached at 41, and holds the disc 30 with a cushioning material 43. Reference numeral 44 denotes a clamp core, which sandwiches and fixes the magnet 45, the disc clamp ring 42, and the stopper ring 46. Reference numeral 47 is a suction ring press-fitted into the disc centering ring 40, which attracts the magnet 45 and sandwiches the disc 30 between the turntable 39 and the cushioning material 43. At this time, the dish fir portion of the suction ring 47 is a clamp core. It guides the spherical surface of the tip of 44 to ensure centering accuracy. 48 is a raised portion 49 of the loading chassis 9
It is a disk clamper that is rotatably attached to the shaft 50 and a snap ring 51, and the loading chassis 9 is attached by a tension spring 52.
Is urged to. Further, the tip of the disc clamper 48 is located between the disc clamp ring 42 and the stopper ring 46, and a certain gap is created between them when the disc 30 is played. Reference numeral 53 is a convex shaft formed rearward of the rotation fulcrum of the disc clamper 48, and the inclined groove 54 formed in the tray 24.
Is guided to rotate the disk clamper 48. Reference numeral 55 denotes a stopper cut and raised from the loading chassis 9, which slides the hitting disk holder 31 up and down against the rear end of the disk holder 31. Reference numeral 57 denotes a tongue band formed on the rear side of the tray 24, which is located under the disc clamp ring 42 at the ejection completion position of the tray 24 and prevents the magnet 45 from being attracted to the attraction ring 47 by an external force. Reference numeral 58 denotes an eject lever slidably attached to the loading chassis 9 by a shaft 59, and an eject button 60 is fitted into the tip of the eject lever. Reference numeral 61 denotes an eject claw fitted on a convex shaft 62 formed on the right tray guide 20, and is biased by a hook spring 63 to a convex band 64 formed on the right tray guide 20.
Reference numeral 65 denotes an engaging recess formed on the right rear side of the tray 24, which engages with the eject claw 61. At this time, the tip slope 66 of the eject claw 61 is guided and engaged with the right rear slope 67 of the tray 24.

Next, the operation will be described with reference to the drawings. Fig. 1 ~
The operation of storing the ejected tray 24 in the cabinet 8 in FIG. 2 will be described.

When the tray 24 is pushed in the direction C by hand and reaches the D position, the rear end of the disc holder 31 hits the stopper 55, and when pushed from the D position to the E position, the disc holder 31 resists the tension spring 34 and the inclined groove 33. To guide the disc 30 to the centering ring 40. At the same time, the disc clamper
The convex shaft 53 of the 48 pulls the inclined groove 54 at the rear of the tray 24, and the spring 52
The disk 30 is magnetically clamped onto the turntable 39 by lowering the clamp ring 42 and moving upwards against.
At this time, the distance F from the D position to the E position is equal to the inclination distance F of the inclined groove 33 and is set to be slightly shorter than the inclination distance F ′ of the inclined groove 4, so that the disc 30 is set on the centering ring 40. After being positioned, it will be magnet clamped, and the disk 30 can be mounted very stably,
The discs 30 and the turntable 39 are not clamped with their axes misaligned. Further, at the same time when the tray 24 is pushed to the E position, the engaging recess formed on the right rear side of the tray 24.
65 engages with the eject pawl 61.

Next, the operation of ejecting the tray 24 from the cabinet 8 will be described with reference to FIGS.

Push the eject button 60 in the G direction to eject the eject lever.
The rear end of the 58 rotates the eject claw 61 against the hook spring 63 to disengage the engaging recess 65 of the tray 24 from the eject claw 61. Next, the driving tension spring 14 acts to contract the distance H. At this time, the damper gear 13 attached to the slider 10 also moves forward by a distance H while meshing with the fixed rack 23 and the tray rack 27. Since the damper gear 13 becomes a movable pulley and moves the distance H while rotating, the moving distance of the tray 24 becomes I, which is twice H, and is expanded and ejected forward from the cabinet 8. In FIG. 5, the load damping amount H of the driving tension spring 14 is set to 1/3 of the spring hanging length J in the present embodiment, but the speed difference between the K position and the L position at the time of ejecting the tray 24 is larger than H as J. Can be set smaller, and the smaller J is, the smaller the depth dimension of the product can be set. In the D position, the disk holder 31 is biased to the upper end of the carrying groove 33 by the tension spring 34, and the disk clamper 48 is also biased to the lower end of the inclined groove 54 in the D position by the tension spring 52, so that the disk 30 is automatically mounted. The tray 24 is ejected to the K position thereafter. At this time, the elastic claws 28 and 29 of the tray 24 are engaged with the engaging portions 19 and 22 of the tray guides 17 and 20, and the ejecting operation is stopped. Further, the eject speed becomes low due to the grease action of the damper gear 13, and the quality is not deteriorated as compared with the conventional motor loading.

As described above, in the disc loading device of the present invention, when the tray is ejected from the main body, the movable disc having the damper gear fitted between the rack fixed to the loading chassis and the rack formed on the tray is movable. By installing a slider and applying a tension spring to the front end of the loading chassis and the rear end of the slider, the tray is ejected with a movement amount twice that of the slider. Since it can be performed at a constant speed and a low speed with the damper gear effect,
Compared with the conventional motor loading method, the quality is not deteriorated, and the motor can be abolished and the tension spring can be used as a drive source to achieve a significant cost reduction. Furthermore, since a motor has been used in the past, products with DC power specifications such as batteries will have a reduced voltage when the batteries are exhausted.
Although the tray could not be loaded, by using a tension spring as the drive source of the loading device, it is possible to realize a loading device that is not affected by the reduced voltage in the DC power supply specification at all.

[Brief description of drawings]

FIG. 1 is a plan view showing a state in which a tray of a disc loading device according to an embodiment of the present invention is stored in a main body,
2 is a sectional view taken along the line BB in FIG. 1, FIG. 3 is a plan view showing a state where the tray is ejected from the main body, and FIG. 4 is a third view.
FIG. 5 is a cross-sectional view taken along the line AA in FIG. 5, FIG. 5 is a relationship diagram showing the operation amount of the tray, the damper gear, and the tension spring, and FIG. 10 …… Slider, 13 …… Damper gear, 14 …… Driving tension spring, 23 …… Rack, 24 …… Tray, 27 …… Rack, 30 …… Disc, 31 …… Disc holder, 32 …… Convex shaft, 33 …… Inclined groove, 34 …… Tension spring, 39 …… Turntable, 40 …… Disc centering ring, 42 …… Disc clamp ring, 45 …… Magnet, 48 …… Disc clamper, 52 …… Tension spring, 53 …… Convex shaft, 54 …… Inclined groove, 55 …… Stopper, 58 …… Eject lever, 61 ……
Eject claw, 63 ... Hook spring, 65 ... Engagement recess.

Claims (1)

[Claims] 1. A damper gear which is slidably supported between a fixed rack and a rack formed on the tray and meshes with the two racks. The damper gear has a tension spring for moving the damper gear, and the tray has a movement amount of the damper gear. The disk loading device is characterized in that it has a double movement amount.