JPS626624Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door opening/closing device for an information recording disc player, and is structured so that a motor for opening/closing the door stops the rotation of the disc and performs an eject operation. The purpose is to make it easy to eject the disk and to smoothly eject the disk.

Hereinafter, the present invention will be explained based on the embodiments shown in the drawings. Fig. 1 is a front view of a player to which the door opening/closing device according to the present invention is applied, Fig. 2 is a side view of the player during performance, and Fig. 3 is a FIG. 3 is a side view of the same ejected state.

In the above drawing, 1 is the mechanism body,
A spindle motor 2 is installed within the main body 1, and a flange-shaped support member 4 on which a disk 3 on which information is recorded is attached to the shaft of the motor 2. Reference numeral 5 designates a braking member for the support member 4, and the braking member 5 has its central portion connected to a pin 6.
A rubber member 7 that can freely come into contact with the support member 4 is attached to one end thereof. The rubber material 7 is always supported by the support member 4 by a spring 8 provided between the rubber material 7 and the pin 6.
5a is a movable part provided at the other end of the braking member 5.

Reference numeral 9 denotes a pocket holder configured to allow the disk 3 to be inserted and removed from above, and a circular hole is provided in the center of the pocket holder through which the support member 4 can be inserted and removed. The pocket holder 9 is arranged on the front surface of the mechanism main body 1 with pins 10 protruding from both sides of its lower end rotatably pivoted to the side surfaces of the mechanism main body 1. Reference numeral 11 denotes a door disposed in front of the pocket holder 9, and the door 11 is rotatably supported on the side surface of the mechanism body 1 by means of pins 12 protruding from both side surfaces at its lower end. or,
Arm plates 13 are provided on both sides of the door 11 and protrude rearward from near the upper end thereof, and the pocket holder 9 is inserted into a vertically long window hole 14 formed in the arm plate 13.
A pin 15 protruding from both sides of the pocket holder 9 is freely inserted into the pocket holder 9 to unify the movement of the door 11 and the pocket holder 9.

16 is a motor for opening and closing the door 11; 17 is a speed reduction mechanism that combines a plurality of gears to transmit the power of the motor 16; and 18 is a gear drive rotatably attached to the side of the mechanism body 1 via a shaft 18a. The driving body 18 has a protrusion 19 projecting from its surface, and a cam 20 is coaxially fixed thereto. The drive body 18 is connected to the deceleration mechanism 17 described above and rotated by the motor 16. 21 is a link lever, and the tip of the lever 21 is rotatably connected to arm plates 13 provided on both sides of the door 11 by a pin 22. Further, a first notch 23 is provided near the rear end of the lower side of the link lever 21 and can be fitted with the projection 19, and a mechanism main body 1 is provided at the obliquely formed rear end of the link lever 21. A second notch 25 is formed which can be freely fitted into a fixing protrusion 24 protruding from the side surface. 26 is the mechanism body 1
A guide protrusion protrudes from the side surface of the link lever 26. The protrusion 26 supports the lower side of the link lever 21 and guides the link lever 21 slidably in the front and back direction. Reference numeral 27 denotes a connecting member, and the connecting member 27 is pivotally connected at its center to the side surface of the mechanism main body 1 by a pin 28 so as to be freely rotatable. The front end 27a of the connecting member 27 is connected to the brake member 5.
The rear end 27b is in contact with the cam 20 provided on the drive body 18.

Next, the operation of the above embodiment will be explained.

First, while the disc 3 is being played, the second notch 25 of the link lever 21 is fitted into the fixing protrusion 24 as shown in FIG.
is in a closed state. Further, the rear end 27b of the connecting member 27 is pushed down by the cam 20, and the pin 28
The front end 27a of the brake member 5 rotates counterclockwise in the figure using the brake member 5 as a fulcrum, and its front end 27a pushes up the movable portion 5a of the brake member 5. In this way, by pushing up the movable part 5a, the braking member 5 rotates about the pin 6 as a fulcrum against the elastic force of the spring 8, and the rubber plate 7 provided at the other end of the member 5 separates from the supporting member 4. The disk 3 is rotated by a spindle motor 2.

Next, the eject operation will be explained with reference to FIG. First, when the door opening/closing motor 16 is rotated, its rotational force is transmitted to the drive body 18 via the deceleration mechanism 17, causing the drive body 18 to rotate clockwise in the figure. Due to this rotation of the driving body 18, the connecting member 27 rotates clockwise, so that the movable portion 5a of the braking member 5
is lowered by the restoring force of the spring 8, and the rubber plate 7 is pressed against the support member 4, applying a brake to its rotation and stopping the rotation of the disk 3.

Subsequently, when the drive body 18 rotates clockwise, its protrusion 19 fits into the first notch 23 of the link lever 21, and at the same time the rear end of the link lever 21 is lifted, the second notch 24 opens into the fixing protrusion 25. turn away from When the driver 18 further rotates clockwise, the link lever 21 is supported by the guide protrusion 26 by the protrusion 19 that fits into the first notch 23 and moves to the right in the figure, thereby pushing the door 11. As a result, the door 11 opens using the pin 12 as a fulcrum, and
The pocket holder 9, which is connected to the door 11 by the window hole 14 and the pin 15, moves in the same direction as the door 11 using the pin 10 as a fulcrum, and the disk 3 is in a state where it can be ejected. When this state is reached, the rotation of the motor 16 stops.

Next, in order to close the door 11, the motor 1 is
This is accomplished by reversing the above-mentioned operation by rotating 6 in the opposite direction. Further, the closing operation of the door 11 can also be performed manually.

Next, the embodiments shown in FIGS. 5 to 8 will be explained. FIG. 5 is a partially cutaway front view, and FIG.
The figures are the same plan view, FIG. 7 is the same side view, and FIG. 8 is the side view when opened.

In the above drawings, the pocket holder 9 has an opening 9a at its lower side, and the lower side 3a of the disk 3 projects from this opening 9a. Reference numeral 9b denotes a storage section for storing the disk 3 of the pocket holder 9, and 9c indicates spacers provided on both sides of the storage section 9b. Reference numeral 29 denotes a band-shaped elevating member, one end of which is rotatably pivoted to the front surface of the lower end of one of the separation bodies 9c by a pin 30, and the other end of the elevating member 29 is supported by a spring 31. is constantly biased downward.
Further, on the back surface of the elevating member 29, there is a lower side portion 3a of the disk 3 protruding from the opening 9a of the pocket holder 9.
Two protrusions 32a and 32b are provided apart from each other to support the. The door 11 has the above-mentioned elevating member 2.
An actuation protrusion 33 is provided rearwardly from the protruding portion of the pin 12 on the side where the pin 9 is rotatably mounted. A connecting member 34 is disposed at the rear of the pocket holder 9 in correspondence with the actuating protruding piece 33. One end of the connecting member 34 is rotatably connected to the mechanism body 1 by a support shaft 35, and the other end is pivoted to the mechanism body 1 by a support shaft 35. It is divided into upper and lower parts, and the free end of the upper arm part 34a comes into contact with the lower side of the actuating projection piece 33, and the free end of the lower arm part 34b comes into contact with the notch groove 29a formed in the lower part of the elevating member 29. ing. In the drawings, the same appended numbers as in the above embodiment indicate the same parts.

Next, the operation of the above embodiment will be explained.

First, while the disc 3 is being played, the door 11 is in a closed state, and the elevating member 29 moves the lower side 3a of the disc 3 inserted into the storage part 9b of the pocket holder 9, as shown in FIGS. 5 and 7. , the protrusion 32
a and 32b, and due to the weight of the disk 3, it is in a nearly horizontal state as shown by the solid line.

Now, when the door 11 is opened by the motor 16 as in the above embodiment, the actuating protruding piece 33 rotates clockwise in the figure with the pin 12 as a fulcrum, and the pocket holder 9 also tilts forward at the same time, as shown in FIG. do. When the door 11 reaches a certain opening angle, the free end of the operating protrusion 33 comes into contact with the upper arm part 34a of the connecting member 34, and the arm part 34a and the lower arm part 34b are rotated. Rotates upward as a fulcrum. This upward rotation of the lower arm portion 34b causes the elevating member 29 to move upwardly as shown in FIG.
With the pin 30 as a fulcrum, its right end is lifted up as shown by the chain line against the elastic force of the spring 31, so that the disk 3 in the storage section 9b of the pocket holder 9 rises and enters the ejected state.

Next, when the closing operation of the door 11 begins, the disk 3 is lowered when it is stored in the storage portion 9b of the pocket holder 9 by an operation opposite to the above-described operation.

As described above, in this embodiment, the disk 3 in the pocket holder 9 can be automatically raised and lowered depending on the opening/closing angle of the door 11, and the operation of mounting and ejecting the disk 3 can be easily performed.

As described above, the present invention includes a spindle motor 2 for rotating the disk 3, a support member 4 attached to the shaft of the motor 2 for mounting the disk 3, and a spindle motor 2 that can be freely moved toward and away from the support member 4. a braking member 5 which is always in a braking state with a spring 8; a door 11 attached to the front of the mechanism body 1 so as to be openable and closable; a motor 16 for opening and closing the door 11; and a protrusion 19 rotated by the motor 16. and a driving body 18 having a cam 20 on the same axis, and a first notch 23 that can be freely fitted into a protrusion 19 of the driving body 18 to open the door 11 and a fixing protrusion 24 fixed to the mechanism body 1. A link lever 21 having a second notch 25 for freely holding the door 11 in a closed state, and a connecting member 27 capable of releasing the brake on the support member 4 by the cam 20 of the driver 18. With this structure, the motor 16 for opening and closing the door 11 can stop the rotation of the disk 3 and perform the eject operation of the disk 3. Therefore, the structure is simple and the eject operation of the disk 3 can be performed smoothly. can be made to do so.

[Brief explanation of the drawing]

Fig. 1 is a front view of a disc player to which the door opening/closing device according to the present invention is applied, Fig. 2 is a side view of the player when playing, Fig. 3 is a side view of the player when it is ejected, and Fig. 4 is a side view of the disc player when the door opening/closing device according to the present invention is applied. FIG. 5 is a partially cutaway front view showing another embodiment of the present invention, FIG. 6 is a plan view of the same, FIG. 7 is a side view during performance, and FIG. Figure 8 is a side view when ejected. DESCRIPTION OF SYMBOLS 1... Mechanism main body, 2... Spindle motor, 3... Disk, 4... Support member, 5... Braking member, 8... Spring, 11... Door, 16... Motor, 18... Drive body, 19... protrusion, 20...
Cam, 21...Link lever, 23...First notch, 4...Fixing protrusion, 25...Second notch, 2
7...Connecting member.

Claims (1)

[Scope of utility model registration request] a spindle motor for rotating the disk; a support member attached to the shaft of the motor for mounting the disk; and a braking member that is movable toward and away from the support member and is always in a braking state with a spring;
A door disposed on the front surface of the mechanism body so as to be openable and closable, a motor for opening and closing the door, a drive body rotated by the motor and having a protrusion and a cam coaxially, and a drive body that can be freely fitted into the protrusion of the drive body. A link lever has a first cutout for opening the door and a second cutout that can be fitted into a fixing protrusion fixed to the mechanism body and holds the door in a closed state, and A door opening/closing device for an information recording disc player comprising a connecting member capable of releasing braking on a supporting member.