JPH09297955A - Magazine inserting and ejecting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably perform an ejecting operation of a magazine by the magazine inserting and ejecting device to be used for a disk changer device for a compact disk (CD), etc. SOLUTION: A sliding plate 7 supported freely slidably by a chassis 6 is formed with a circular-arcuate slit, and one end of a lever 19 held turnably by the chassis 6 is provided with a pin 21. Moreover, a spring for ejecting the magazine is provided between the other end of the lever 19 and the sliding plate 7 to make ejecting force of the magazine constant, so that the ejecting operation of the magazine is stably performed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine insertion / ejection device used for a compact disc (CD) disc changer device or the like.

[0002]

2. Description of the Related Art FIG. 3 shows a magazine 1 for storing a plurality of disks. In FIG. 3, reference numeral 2 is a housing with an open front surface, and 3 is a partition plate arranged in parallel in the housing 2, and a disk is inserted between the partition plates 3.

FIG. 4 shows a disc changer device using the magazine 1. In FIG. 4, reference numeral 4 denotes an apparatus body, and an opening 5 into which the magazine 1 is inserted is formed on the front surface of the apparatus body 4. The device body 4
Inside, there is a disc pull-out mechanism for pulling out and storing the disc from the magazine 1, a loading mechanism for transferring the disc pulled out from the magazine to the turntable, a drive mechanism for rotationally driving the turntable, and a rotating disc. An optical pickup mechanism for reading information is stored.

FIG. 5 shows a magazine insertion / ejection device in the disc changer device. In FIG. 5, 6
Is a chassis housed in the apparatus main body 4, and a sliding plate 7 is slidably supported on an upper surface plate 6a of the chassis 6. Reference numeral 7a is a bent piece formed by bending the tip of the sliding plate 7 by approximately 90 °. Reference numeral 8 denotes a spring that is hung between the protrusion of the upper surface plate 6a and the protrusion of the sliding plate 7. The elastic force of the spring 8 causes the sliding plate 7 to move into the magazine insertion slot 9 of the chassis 6.
Biased in the direction. 10a and 10b are leaf springs, and one ends of the leaf springs 10a and 10b are attached to the upper plate 6a. 11a and 11b are leaf springs 10a and 10b
Is a roller held at the other end of the leaf springs 10a, 10
Due to the elastic force of b, the rollers 11a and 11b move to the chassis 6
The upper surface of the magazine 1 inserted from the magazine insertion opening 9 is pressed. FIG. 6 schematically shows the conventional magazine lock mechanism.

In FIG. 6, 12 is an L-shaped groove formed on the upper surface of the magazine 1, and 13 is a chassis 6 by a shaft 14.
This lever is rotatably supported by the lever.
At one end of the lock pin 15 that enters the L-shaped groove 12
Is provided. Reference numeral 16 is a spring for urging the lever 13 in the counterclockwise direction.

FIG. 7 shows the upper surface of the sliding plate 7 of the conventional example. In FIG. 7, 7b is a rack formed on the side of the sliding plate 7, 17 is a rotary damper attached to the top plate 6a of the chassis 6, and silicone oil is inserted into the rotary damper 17. . Reference numeral 18 denotes a gear attached to the rotary shaft of the rotary damper 17, and the gear 18 meshes with the rack 7b.

When the magazine 1 is inserted through the magazine insertion slot 9 of the chassis 6 as shown in FIG. 5, the rollers 11a, 1
1b hits the upper surface of the magazine 1 and urges the magazine 1 downward. When the magazine 1 is further inserted, the tip of the magazine 1 hits the bent piece 7a of the sliding plate 7 and the sliding plate 7 slides backward against the elastic force of the spring 8. In the process of inserting the magazine 1, the lock pin 15 is locked in the groove 12 of the magazine 1.
to go into. When the magazine 1 is further inserted, the lever 13 biased counterclockwise by the spring 16 as shown in FIG.
Rotates about the shaft 14, the lock pin 15 enters the bent portion of the L-shaped groove 12, and the magazine is locked at a predetermined position in the chassis 6.

When a command for ejecting the magazine is input in the magazine locked state, the lever 13 is driven clockwise around the shaft 14 by the drive mechanism (not shown), and the lock pin 15 moves into the L-shaped groove 12. The magazine lock is released from the bent section. Therefore, the sliding plate 7 slides by the elastic force of the spring 8 applied to the sliding plate 7, and the magazine 1 is ejected toward the magazine insertion port 9. As shown in FIG. 7, since the gear 18 of the rotary damper 17 is meshed with the rack 7b of the sliding plate 7, the magazine ejection force due to the elastic force of the spring 8 is reduced, and the magazine 1 is ejected slowly.

By using the rotary damper 17 in this way, it is possible to prevent the magazine 1 from jumping out due to the ejecting operation due to the elastic force of the spring 8 directly acting by slowing the ejection of the magazine 1. is there.

[0010]

However, in the rotary damper 17 used in the above-mentioned conventional magazine insertion / ejection device, the ejection force of the magazine changes due to the temperature characteristic of the silicone oil, and the magazine insertion port after the ejection operation is performed. There is a problem that the protrusion length from 9 changes, the magazine pops out, or the magazine does not sufficiently project from the magazine insertion port 9. Further, there is a problem that the silicone oil in the rotary damper 17 may exude to the outside at a high temperature, failing to function as a damper, or the disc changer device may be contaminated by the silicone oil.

The present invention solves the above-mentioned conventional problems, and provides a magazine insertion / ejection device in which the projection length of the magazine is constant when the magazine is ejected by a simple mechanism.

[0012]

In order to achieve the above object, the present invention presses the side wall of the arc-shaped elongated hole of the sliding plate by the pin of the movable lever urged by the spring for ejecting the magazine. As a result, the force for ejecting the magazine is made constant, and the ejecting operation of the magazine becomes stable with a simple configuration.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION The invention according to claim 1 of the present invention is
A sliding plate slidably supported by the chassis and driven by a magazine to slide, an arc-shaped elongated hole formed in the sliding plate, and a lever rotatably supported by the chassis, The elastic means of the spring means has a pin attached to one end of the lever and inserted into the elongated hole, and spring means having one end locked to the slide plate and the other end locked to the other end of the lever. It is characterized in that the magazine is ejected by force, and the ejecting operation of the magazine can be performed stably.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
2 and FIG. (Embodiment 1) FIGS. 1 and 2 are top views of a magazine insertion / ejection device according to an embodiment of the present invention. In FIGS. 1 and 2, reference numeral 6 denotes a chassis fixed in the apparatus body 4, and a sliding plate 7 is slidably supported on the lower surface of an upper surface plate 6a of the chassis 6. Reference numeral 7c is an arcuate elongated hole formed in the sliding plate 7. Reference numeral 19 denotes a lever rotatably supported on the upper surface of the upper surface plate 6a by a shaft 20.
A pin 21 is fixed to the lower surface of one end of the lever 19. Reference numeral 22 denotes an elongated hole formed in the upper surface plate 6a, and the pin 2 of the lever 19 rotatably supported by the upper surface plate 6a.
1 is inserted into the elongated hole 22 and is also inserted into the arcuate elongated hole 7c of the sliding plate 7. 23 is a spring whose one end is locked to the sliding plate 7 and the other end is locked to the lever 19, 24 is one end locked to the sliding plate 7 and the other end is locked to the upper plate 6a. It is a spring.

FIG. 1 shows a state in which the magazine 1 is inserted from the magazine insertion opening 9 of the chassis 6. When the magazine 1 is further inserted in this state, the tip of the magazine 1 hits the bent piece 7a of the sliding plate 7, and the sliding plate 7 resists the elastic force of the springs 23 and 24 as the magazine 1 is inserted. Slide backwards. When the sliding plate 7 slides backward, the pin 21 of the lever 19 is guided by the arc-shaped long hole 7c of the sliding plate 7, so that the lever 19 moves counterclockwise about the shaft 20. Rotate. FIG. 2 shows a magazine lock mechanism with the magazine 1 further inserted (similar to the lock mechanism shown in FIG. 6).
Indicates that the magazine 1 is locked.

When the magazine ejection switch (not shown) is operated in the magazine locked state shown in FIG. 2, the magazine lock is released by the drive mechanism. Therefore, the sliding plate 7
Is ejected by being slid toward the magazine insertion port 9 by the elastic force of the springs 23 and 24. Since the lever 19 is biased counterclockwise by the spring 23 during the ejecting operation of this magazine, the pin 21 at the tip of the lever 19 moves the side surface of the arc-shaped elongated hole 7c of the sliding plate 7 to the sliding plate. Push in the direction orthogonal to the sliding direction of 7. Therefore, the biasing force of the spring 23 in the sliding direction of the sliding plate 7 is reduced. The force for pressing the elongated hole 7c in the direction orthogonal to the sliding direction of the sliding plate 7 by the pin 21 is the largest immediately after the unlocking of the magazine, and is accompanied by the movement of the sliding plate 7 in the magazine insertion port 9 direction. Becomes smaller. Therefore, the force of pushing and ejecting the magazine 1 becomes substantially constant, and the protruding length of the magazine from the magazine insertion port 9 at the end of the magazine discharging operation becomes constant.

[0017]

As described above, according to the present invention, the magazine is ejected by pressing the side wall of the arc-shaped oblong hole of the sliding plate by the pin of the movable lever urged by the spring for ejecting the magazine. The force applied is constant, and when the magazine is unlocked and the elastic force of the spring ejects the magazine, there is the advantage that the amount of protrusion of the magazine is constant and a stable ejection operation can be performed.

[Brief description of drawings]

FIG. 1 is a top view of a main part of a magazine insertion / ejection device according to an embodiment of the present invention.

FIG. 2 is a top view of a main part when the magazine is locked in the same embodiment.

FIG. 3 is a perspective view of a conventional magazine

FIG. 4 is a perspective view of a conventional disc changer device.

FIG. 5 is a sectional view of a main part of a conventional magazine insertion / ejection device.

FIG. 6 is a top view of a main part of the conventional example.

FIG. 7 is a top view of a sliding plate of the conventional example.

[Explanation of symbols]

 1 Magazine 6 Chassis 7 Sliding Plate 7c Oblong Hole 9 Magazine Insert 19 Lever 20 Shaft 21 Pin 23, 24 Spring

Claims (1)

[Claims] 1. A slide plate slidably supported by a chassis and driven by a magazine to slide, an arc-shaped elongated hole formed in the slide plate, and rotatably supported by the chassis. A lever, a pin attached to one end of the lever and inserted into the elongated hole, and a spring means having one end locked to the sliding plate and the other end locked to the other end of the lever,
A magazine insertion / ejection device, wherein the magazine is ejected by the elastic force of the spring means.