JPH08129815A - Recording and reproducing device - Google Patents

Abstract

PURPOSE: To obtain a door opening/closing mechanism of the recording/ reproducing device capable of being manufactured at a low cost with simple structure by making the door vertically operable while keeping the state of the horizontal attitude. CONSTITUTION: A turning shaft 33 provided with a pressurizing lever 35, a pressurizing roller 37 of which is projected, on a locus of the movement of a tray 18 is freely turnably supported by a front surface cover 15, and also rocking levers 31a, 31b making the door 21 vertically operate while keeping the state of the nearly horizontal attitude are integrally provided on the turning shaft 33. Then, the door 21 is vertically operated through the rocking levers 31a, 31b by turning the pressurizing lever 35 in accordance with the movement of the tray 18.

Description

Detailed Description of the Invention

[0001]

The present invention relates to a laser disk (L
D), a compact disc (CD), a cassette tape, etc. as a recording / reproducing apparatus, and in particular, a door opening / closing mechanism for vertically opening and closing an insertion opening of a player main body into / from which an information recording medium is inserted / removed. It is about.

[0002]

2. Description of the Related Art Conventionally, as a recording / reproducing apparatus of this kind, there is generally a disk player apparatus as shown in FIGS. FIG. 8 is a rear view of the front cover and the door attached to the front surface of the chassis, and FIGS.
FIG. 7 is an explanatory diagram showing a relationship between a tray moving operation and a door opening / closing operation.

In FIGS. 8 to 10, reference numeral 1 is a front cover which constitutes a part of the player main body, and an opening 3 for inserting and removing the tray 2 is opened in the front cover 1. The insertion port 3 of the front cover 1 can be opened and closed by a door 4 that can move in the vertical direction, and is normally urged upward by the spring force of the coil spring 5 to close the insertion port 3. Racks 6 and 6 projecting to the rear side are provided at both ends of the door 4 in the left-right direction.
The pinions 7 and 7 are meshed with each other.

A pair of pinions 7, 7 are fixed to both ends of a rotary shaft 8, and the rotary shaft 8 is rotatably supported on the back surface of the door 4 by bearing members 9, 9. Furthermore, door 4
A drive pin 10 protruding inward is provided at one end in the left-right direction of the player, and a pin groove 12 of a swing lever 11 rotatably supported by the player body is slidably fitted into the drive pin 10. ing. A pressure lever 13 is integrally provided on the swing lever 11, and a pressure roller 14 provided at the tip of the pressure lever 13 is arranged in front of the tray 2.

According to the disc player device having such a structure, for example, when the open / close button is pressed to select the pulling-out operation of the tray 2, as shown in FIG. 9, the tray 2 is first pushed up by the tray drive mechanism. The pressure roller 14 is moved from the position shown by the solid line to the position shown by the chain double-dashed line.
Will be located behind. Next, as shown in FIG. 10, when the tray 2 is moved forward by the operation of the tray drive mechanism, the front surface of the tray 2 comes into contact with the pressing roller 14 and pushes the pressing lever 13 forward, whereby the swing lever 1
Similarly, 1 rotates forward.

As a result, the drive pin 10 is moved to the swing lever 11
It is pushed by and is pushed down while moving in the pin groove 12. As a result, the door 4 integrated with the drive pin 10 moves downward, the insertion opening 3 is opened, and the tray 2 pops out from the opened insertion opening 3. At this time, the door 4
When is moved downward, the pinion 7 meshing with one rack 6 is rotationally driven according to the movement amount of the door 4, and its rotational force is transmitted to the other pinion 7 via the rotary shaft 8. , The other rack 6 meshing with this pinion 7 is similarly pushed down. In this way, by the action of the left and right rack and pinion that meshes with each other and transmits power,
It is possible to push down the door 4 substantially in parallel by synchronizing the moving mechanisms at the left and right ends of the door 4.

On the other hand, when the tray 2 is housed in the player main body, it is possible to perform the operation reverse to the above-mentioned operation. That is, when the retracting operation of the tray 2 is selected by pressing the open / close button, the tray 2 is retracted by the operation of the tray drive mechanism, and the pressing roller 14 is in contact with the lower surface of the tray 2 until the tray 2 enters the insertion opening 3. Therefore, the door 4 is held open against the biasing force of the coil spring 5.

Next, when the tray 2 enters the insertion opening 3, the restraint of the pressing lever 13 by the tray 2 is released, so that the door 4 is pushed upward by the biasing force of the coil spring 5. Thereby, the drive pin 10 fixed to the door 4
Moves upward and pushes the rocking lever 11 upward, so that the door 4 moves to the upper end, and as a result, the insertion port 3 is completely closed by the door 4.

[0009]

However, in the conventional recording / reproducing apparatus as described above, the rack and pinions 6 and 7 are provided at both left and right ends of the door 4, respectively.
When the door 4 is opened / closed, the two racks and pinions 6 and 7 are used for phase adjustment of both ends in the left-right direction. Therefore, not only high precision is required for the components, but also the assembling precision is high. There was a problem that due to the requirement, detailed attention was required for the assembly work. That is, the structure is such that two pinions 7 and 7 are fixed to both ends of one rotation shaft 8, and both pinions 7 and 7 need to have the same phase. If there is a phase difference between the two, one of the pinions 7 will be driven with a delay of the phase difference, and therefore the door 4 cannot be smoothly moved up and down while maintaining the horizontal posture.

The present invention has been made in view of the above-mentioned problems of the related art, and by making it possible to move the door up and down while maintaining the horizontal posture, the structure is simple and inexpensive. It is an object of the present invention to provide a door opening / closing mechanism of a recording / reproducing apparatus that can be manufactured in any way.

[0011]

In order to solve the above-mentioned problems and the like and to achieve the above-mentioned objects, the present invention, for example, as shown in FIG. 1 to FIG. In a recording / reproducing apparatus capable of opening and closing the insertion port 17 by moving the door 21 covering the insertion port 17 into and out of which is moved up and down in conjunction with the movement operation of the information recording medium, A rotating shaft 33 provided with a pressing lever 35 on which the input portion 37 projects on the movement path.
And a moving mechanism 31a, 31b, 40 for vertically swinging the door 21 while keeping the door 21 in a substantially horizontal position while integrally supporting the rotating shaft 33, and pressing lever by moving the information recording medium. By rotating 35, the moving mechanism 31
It is characterized in that the door 21 is moved up and down via a, 31b and 40.

The recording / reproducing apparatus of the present invention is, for example,
The information recording medium is composed of an information recording disk that can be placed on the tray 18 that is inserted into and taken out of the player main body through the insertion slot 17, and the tray 18 may be configured to control the rotating operation of the pressing lever 35.

Further, the recording / reproducing apparatus of the present invention is, for example,
As shown in FIGS. 1 and 4 to 6, the moving mechanism includes a pair of rocking levers 31a and 31b integrally provided on the rotary shaft 33, and the rocking levers 31a and 31b respectively include the door 21. It is preferable that the pair of drive pins 23a, 23b provided at both ends in the left-right direction be provided with pin grooves 32, 32 slidably fitted therein.

Furthermore, in the recording / reproducing apparatus of the present invention, for example, as shown in FIG. 7, the moving mechanism 40 may be provided at the center of the door 21 in the left-right direction or in the vicinity thereof.

The recording / reproducing apparatus of the present invention is, for example,
As shown in FIGS. 1 and 4 to 6, the rack 2 is provided on the door 21.
5 and the pinion 39 that meshes with the rack 25
It is preferable that the damper mechanism 38 having the above is provided in the player main body and the damper mechanism 38 is operated by the movement of the rack 25 to control the opening / closing speed of the door 21.

[0016]

The present invention has the above-mentioned configuration,
When the operation for taking out the information recording medium from the player main body is started, the pressing lever 3 is moved by the movement of the information recording medium.
The door 21 is operated by the movement mechanisms 31a, 31b, 40 that rotate together with the pressing lever 35.
Keeps a substantially horizontal posture and descends, whereby the insertion port 17 is opened and the information recording medium is pulled out from the player main body.

On the other hand, when the operation for pulling the information recording medium into the main body of the player is started, the information recording medium is inserted into the insertion slot 1.
The movement of the pressing roller 37 is blocked until it enters the position 7, and the door 21 is held open. After that, when the information recording medium enters the insertion opening 17, the restraining force of the pressing roller 37 is released, so that the door 21 is pushed upward, and the door 21 is almost moved through the action of the moving mechanisms 31a, 31b, 40. Holds the horizontal posture and rises, so that the insertion opening 1
7 is closed and the information recording medium is pulled into the player body.

When the information recording medium is an information recording disc, the information recording disc is a tray 18.
Then, the tray 18 controls the pivoting operation of the pressing lever 35 at this time.

Further, when the moving mechanism is composed of a pair of rocking levers 31a and 31b integrally provided on the rotary shaft 33, the rocking lever 3 is integrated with the pressing lever 35 via the rotary shaft 33.
1a and 31b rotate, and the swing levers 31a and 31b rotate.
Driven by the pin grooves 32, 32 of the drive pins 23a, 2
By moving 3b in the vertical direction, the door 21 can be held in a substantially horizontal posture and moved up and down.

Furthermore, when the moving mechanism 40 is provided at the center of the door 21 in the left-right direction or in the vicinity thereof, it can be constituted by one swing lever, and the structure can be further simplified.

When the door 21 that opens and closes the insertion opening 17 moves up or down, the damper mechanism 38 is driven via the pinion 39 that meshes with the rack 25 provided on the door 21, so that the damper mechanism 38 opens the door. The opening / closing operation is controlled so that the door 21 moves slowly.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show a disc player device according to a first embodiment of the present invention, FIG. 1 is an exploded perspective view of a door and a moving mechanism, and FIG. 2 is an external perspective view of the disc player device.
3 is an external perspective view of the disc player device with the door opened and the tray pulled out, FIG. 4 is a rear view of the front cover and the door, FIG. 5 is a cross-sectional view with the door closed, and FIG. 6 is the door opened. It is a sectional view of the state where it was opened. FIG. 7 is an exploded perspective view of a door, a moving mechanism and the like of the disc player device according to the second embodiment of the present invention.

In FIGS. 2 and 3 showing the disc player device of this embodiment, 15 is a front cover which constitutes a part of the player main body, and 16 is a chassis cover which also constitutes a part of the player main body. Chassis cover 16
A chassis that constitutes a main part of the player body is housed inside the player, and the front cover 1 is attached to the front surface of the chassis.
5 is attached.

The front cover 15 is composed of a rectangular lid body elongated in the left-right direction, and an insertion opening 17 extending in the left-right direction is opened on the front surface thereof. The insertion opening 17 has a size allowing the tray 18 to be taken in and out, and has notches 19 and 19 at both ends in the left-right direction for avoiding contact with the swing levers 31a and 31b, as shown in FIG. Is formed. A rectangular door 21 is arranged on the front surface of the insertion port 17, and the insertion port 17 can be opened and closed by moving the door 21.

The door 21 has an insertion opening 17 and left and right cutouts 1.
The size is such that 9 and 19 can be closed at the same time, and as shown in FIG. 1 and the like, side plates 22a and 22b that are developed rearward are provided at both ends in the left-right direction. Each side plate 22a, 22b has a drive pin 23a, 23b projecting inward, and a pair of slide pins 24a, 24a, 24b, 2 projecting outward, respectively.
4b, and a rack 25 having teeth arranged in the vertical direction is provided on the back surface of one side plate 22a.

The door 21 having such a structure is attached to the front surface of the insertion port 17 of the front cover 15 so as to be slidable in the vertical direction. That is, the left and right side plates 2 of the door 21
Slide pins 24a, 24 provided on the outer surfaces of 2a, 22b
a and 24b, 24b are the insertion openings 17 of the front cover 15.
A pair of bearing members 26a respectively mounted inside the
26b are respectively engaged with the guide grooves 27a and 27b, and the door 21 as a whole is configured to be vertically slidable. And the door 21 has two coil springs 28,
The spring force of 28 always urges upward so as to close the insertion port 17. 29, 29 are coil springs 2
It is a spring receiving portion on the side of the door 21 that receives one end of each of the coil springs 28 and 28, and the other ends of the coil springs 28 and 28 are respectively locked to the spring receiving portions 30 and 30 provided on the front cover 15.

The drive pins 23a and 23b are provided with a pair of swing levers 31a and 31 showing a specific example of the moving mechanism.
Pin grooves 32, 32 provided at the tip of b are slidably engaged with each other. The pair of swing levers 31a and 31b
Are integrally provided on both axial ends of the rotary shaft 33.
Both ends of the rotating shaft 33 are rotatably supported by bearing portions 34, 34 provided on the pair of bearing members 26a, 26b. Further, the rotating shaft 33 is integrally provided with a pressing lever 35 and a stop lever 36 so as to be combined with one of the swing levers 31a, and a pressing roller 37 as an input portion is rotated at the tip of the pressing lever 35. The shaft is freely supported.

That is, the pair of swing levers 31a and 31b, the rotary shaft 33, the pressing lever 35 and the stop lever 36 are integrally formed, and the door 21 closes the insertion port 17 as shown in FIG. In this state, the pressing lever 35 extends upward, the pressing roller 37 at the tip of the pressing lever 35 is positioned in front of the tray 18 on the movement path, and the stop lever 36 protruding downward is positioned in front of the tray 18. are doing. At this time, the pair of swing levers 31a and 31b extend obliquely upward, and the drive pin 23 is inserted into the pin grooves 32 and 32 at the tips thereof.
a and 23b are engaged with each other.

A pinion 39 of a damper mechanism 38 meshes with the rack 25 provided on one side plate 22a of the door 21. The damper mechanism 38 includes one bearing member 26a.
Is integrally provided in the pinion 39, and the damping force is generated by the resistance force when the pinion 39 and its connecting portion rotate,
The operation of the door 21 in the closing direction based on the urging force of the coil spring 28 is controlled to gently close the insertion port 17.

According to the disc player device having such a structure, the tray 18 can be taken in and out as follows, for example.

First, the case where the tray 18 is pulled out from the insertion opening 17 will be described. In this case, for example, the open / close button is pressed to select the operation of pulling out the tray 18. Then, as shown in FIG. 5, first, the tray 18 is pushed up by the tray drive mechanism (not shown) to move from the position shown by the solid line to the position shown by the chain double-dashed line, and the tray 18 is moved to the rear of the pressing roller 37. Come to be located.

Next, as shown in FIG. 6, when the tray 18 is moved forward by the operation of the tray drive mechanism, the front surface of the tray 18 contacts the pressing roller 37 and pushes the pressing lever 35 forward. As a result, one swing lever 31a that is integrated with the pressing lever 35 and the other swing lever 31b that is integrated with the pressing lever 35 via the rotating shaft 33 are
At the same time, it turns forward. As a result, one drive pin 2
3a is pressed by one rocking lever 31a, and the other drive pin 23b is simultaneously pressed by the other rocking lever 31b, and is pushed downward while moving in the pin grooves 32, 32, respectively.

As a result, the door 21 integrated with the drive pins 23a and 23b moves downward while maintaining a substantially horizontal posture against the biasing force of the two coil springs 28 and 28. By moving the door 21 downward, the insertion opening 17
As the tray is opened, the tray 18 pops out from the opened insertion opening 17. Then, by pulling out the tray 18 to the state shown in FIG. 3, a desired laser disk (LD), compact disk (CD), or other disk as an information recording medium is mounted in the recess on the tray 18, or in advance. You can take out the mounted disc.

On the other hand, when the tray 18 is housed in the player main body, the operation reverse to the above-described operation can be performed. That is, when the opening / closing button is pressed to select the retracting operation of the tray 18, the tray drive mechanism operates to retract the tray 18. In this case, the drive pins 23a, 23
Since the pressing lever 35 is constantly urged upward by the spring force of the coil springs 28, 28 acting on b, the pressing roller 37 contacts the lower surface of the tray 18 until the tray 18 enters the insertion opening 17. There is. Therefore, the door 21 is held in the open state against the biasing force of the coil spring 28 until the tray 18 enters the insertion opening 17.

Next, when the tray 18 enters the insertion opening 17 from the position indicated by the chain double-dashed line in FIG. 6 through the position indicated by the solid line, the restraint of the door 21 by the tray 18 is released, and the coil spring 28 is then released. The door 21 is pushed upward by the urging force of. As a result, the drive pins 23a and 23b integrated with the door 21 move upward, and the swing levers 31a and 31b are pushed upward while moving in the pin grooves 32 and 32. As a result, the door 21 moves to the upper end while the tray 18 is pulled inside the player body, and
The insertion opening 17 is completely closed by the door 21.

Then, by moving the tray 18 from the position indicated by the chain double-dashed line in FIG. 5 to the position indicated by the solid line, it becomes possible to load the disc mounted on the tray 18 into the player main body. As a result, it becomes possible to record information on the disc or reproduce information from the disc through the operation of an optical pickup (not shown).

As shown in FIG. 7, the moving mechanism 41
Can be provided in the center of the door 21 in the left-right direction or in the vicinity thereof. The swing lever 41, which is the moving mechanism, is provided substantially at the center of the rotary shaft 33 in the axial direction, has the same shape and structure as the swing lever 31a of the first embodiment, and similarly. The pressing lever 35 and the stop lever 36 are integrally formed.

A drive shaft 43 provided at the center of the door 21 in the left-right direction is slidably engaged with the pin groove 42 of the swing lever 41. The drive shaft 43 is supported at both ends by a pair of bearing pieces 44, 44 projecting from the back surface of the door 21, and the tip of the swing lever 41 is inserted between the bearing pieces 44, 44. Other configurations and operations are similar to those of the above-described embodiment, and similar effects can be obtained by adopting such a configuration.

Although the present invention has been described above, the present invention is not limited to the above embodiment. For example, in the above embodiment, an example in which an information recording disk such as an optical disk or a magnetic disk is used as an information recording medium has been described. It is also possible to apply a cassette tape using a magnetic tape as an information recording medium. When this cassette tape is applied, a tray corresponding to the tray 18 in the above-described embodiment may be provided, and the cassette tape may be attached to the tray to load it at a predetermined position, and no tray is provided. Then, the cassette tape loading mechanism may be provided with the function of the tray to open and close the door 21.

In the first embodiment, the swing levers 31a and 31b, which are moving mechanisms, are provided at both ends of the door 21 in the left-right direction, and the door 21 is held by the two moving mechanisms in a horizontal posture.
However, for example, by combining the first embodiment and the second embodiment, the left and right side plates 22a and 22b are combined.
It is also possible to have a structure in which a connecting shaft is provided so as to span between, and a central swinging lever provided at the center of the player body side slidably supports the central part of the connecting shaft. As described above, the present invention can be variously modified without departing from the spirit thereof.

[0041]

As described above, according to the present invention,
Since a pressing lever and a moving mechanism are integrally provided on a turning shaft that is rotatably supported by the player body, and the door is moved up and down in conjunction with the movement of the information recording medium, the structure is simple but almost The door can be smoothly moved up and down while maintaining the horizontal posture. Moreover, since the components are not required to have high precision and the assembling precision is not required, the assembling work can be easily performed, and it is possible to provide the recording / reproducing device which can be manufactured at low cost.

Further, when the information recording medium is an information recording disc, the information recording disc can be placed on the tray and inserted into and taken out of the player main body through the insertion opening, whereby the tray operation can be performed. It is possible to smoothly move the door up and down, and it is possible to provide a disc player device that can open and close the door in a horizontal posture while having a simple mechanism.

Further, when the moving mechanism is composed of a pair of rocking levers, the driving pin is slidably engaged with the pin groove, which is an extremely simple structure.
It is possible to obtain an effect that the door can be held in a horizontal posture and smoothly moved up and down.

Further, when the moving mechanism is provided at the center of the door in the left-right direction or in the vicinity thereof, the moving mechanism can be constituted by one swinging lever, and this kind of door opening / closing mechanism has a simpler structure. Can be

Further, since the damper mechanism is driven in conjunction with the door that opens and closes the insertion opening, the opening and closing operation of the door can be controlled through the function of the damper mechanism, and the door is opened and closed gently. The effect that can be obtained is obtained.

[Brief description of drawings]

FIG. 1 is a rear perspective view showing a first embodiment of a door and a moving mechanism according to a recording / reproducing apparatus of the present invention.

FIG. 2 is an external perspective view showing an embodiment of the recording / reproducing apparatus of the present invention.

FIG. 3 is a perspective view showing a state in which a door is opened and a tray is pulled out from the state of FIG.

FIG. 4 is a rear view showing a front cover and a door according to the recording / reproducing apparatus of the present invention.

FIG. 5 is a cross-sectional view showing a state in which the insertion port of the recording / reproducing apparatus of the present invention is closed.

FIG. 6 is a cross-sectional view showing a state in which the insertion port of the recording / reproducing apparatus of the present invention is opened.

FIG. 7 is a rear perspective view showing a second embodiment of the door and the moving mechanism according to the recording / reproducing apparatus of the present invention.

FIG. 8 is a rear view showing a conventional front cover and door.

FIG. 9 is a cross-sectional view showing a state in which the insertion port of the conventional recording / reproducing apparatus is closed.

FIG. 10 is a cross-sectional view showing a state in which the insertion port of the conventional recording / reproducing apparatus is opened.

[Explanation of symbols]

 15 front cover 17 insertion opening 18 tray 21 door 22a, 22b side plate 23a, 23b drive pin 24a, 24b slide pin 25 rack 26a, 26b bearing member 27a, 27b guide groove 28 coil spring 31a, 31b, 40 rocking lever (moving lever) Mechanism) 32, 41 pin groove 33 rotating shaft 35 pressing lever 37 pressing roller (input section) 38 damper mechanism 43 drive shaft

Claims (5)

[Claims] 1. A recording / reproducing system capable of opening and closing the insertion port by moving a door of the player body, which covers the insertion port into and out of which the information recording medium is taken in and out, in a vertical direction in conjunction with a movement operation of the information recording medium. In the device, a rotation shaft provided with a pressing lever having an input portion protruding on the movement track of the information recording medium is rotatably supported on the player body, and the door is integrally formed with the rotation shaft. Is provided with a moving mechanism for vertically moving the door while keeping the door in a substantially horizontal position, and the door is moved up and down through the moving mechanism by rotating the pressing lever by moving the information recording medium. Characteristic recording / reproducing device. 2. The recording / reproducing apparatus according to claim 1, wherein the information recording medium comprises an information recording disk mountable on a tray that is inserted into and taken out of the player main body through the insertion slot, and is pressed by the tray. A recording / reproducing apparatus characterized in that a turning operation of a lever is controlled. 3. The recording / reproducing apparatus according to claim 1, wherein the moving mechanism is composed of a pair of swing levers provided integrally with the rotary shaft, and each swing lever includes both left and right ends of the door. 2. A recording / reproducing apparatus, characterized in that a pin groove slidably fitted to each of a pair of drive pins provided on the recording / reproducing device. 4. The recording / reproducing apparatus according to claim 1, wherein the moving mechanism is provided at the center of the door in the left-right direction or in the vicinity thereof. 5. The recording / reproducing apparatus according to claim 1, wherein a rack is provided on the door, and a damper mechanism having a pinion that meshes with the rack is provided on the player main body, and the damper mechanism is moved by moving the rack. A recording / reproducing apparatus characterized by being operated to control the opening / closing operation of the door.