JPS63204581A - Vibration isolator for loading mechanism - Google Patents

Abstract

PURPOSE:To prevent a case body from resonance due to the vibration sound or the like of a motor in a loading mechanism part and the loading mechanism part from the transmission of external vibration by arranging vibration isolating washes between leg parts and the case body. CONSTITUTION:When supporting plates 11, 12 fixed on a loading base 9 by screws 10 are fixed on a chassis 52 by step screws 62 through vibration isolating washers 60, 61 formed by a viscous material, the loading base 9 is floated from the chassis 52 by the washers 60, 61. Thus, the chassis 52 can be prevented from the transmission of the traveling noise of a disk tray in loading operation and resonance with the noise. In addition, the vibration of an external floor is not transmitted from the chassis 52 to the loading base 9.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a vibration isolating device for a loading mechanism used in a disc loading device of a disc playing device for playing an optical disc or the like.

2. Description of the Related Art In recent years, various methods have been proposed for disc loading devices for disc playing devices that play optical discs and the like, with rapid development being seen.

An example of a conventional disc loading device will be described below with reference to the drawings.

FIG. 17 is an exploded perspective view showing the configuration of a conventional disc loading device, and FIG. 16 is a perspective view of the entire disc playing device equipped with the conventional disc loading device. In FIGS. 15 and 17, the rack plate 2 is attached to the boss 1-e of the disk tray 1.
The disc tray is inserted into the disc tray and supported by screws 21 so as to be slidable in the direction of arrow 13 indicating the storage and ejection direction of the disc tray. The lock lever 3 is rotatably inserted into the protruding pin 1-i of the disc tray 1 and held by a retaining ring 23.

The lock lever is held by hook 1- and 7 hook 3-a.
Due to the biasing force of the lock lever spring 24 inserted into the protruding pin 1-i together with the lock lever 3, the hook portion 3-d of the lock lever 3 is
is configured to engage with the rack plate 20 square pin/2-q.

The protruding rib 3-c of the lock lever 3 has a long length 2 of the rank plate 2.
-f, it penetrates through the rack plate 2 and comes out toward the bottom surface of the disk tray 1. In the guide groove 1-g of the disc tray 1, a disc holder is supported by a protruding pin 18-a so as to be vertically movable in the loading direction of the disc tray 1, that is, in the direction of the arrow 13. Built-in.

Further, a stop lever spring 44 held by the hook 9-b and the hook 6-a, and a stop lever e are rotatably inserted into the stop shaft 9-a of the loading base 9, and a retaining ring 4 is inserted into the stop shaft 9-a of the loading base 9.
Supported by 5. A loading motor 26 to which a motor pulley 27 is fixed, a pulley gear 29 formed by a gear 29-a and a pulley 29-b are attached to the loading base 9, and the pulley 29-b and the motor pulley 27 are connected by a rubber belt 32.

The disc tray 1 is placed in the guide groove 1 of the loading base 9.
It is slidably supported by 1-a and 12-a, but the first
As shown in FIG. 6, the guide 1l111=a is inserted into the loading base 9 by bending the support rib 11-d in the direction of the arrow 46. The loading base 9 is manufactured by, for example, outsert molding, and the supporting ribs 11
Since -d is a resin material, it is possible to produce a deflection as shown by the arrow 46.

When the disc tray 1 is inserted into the loading base 9, the protruding pin e-b of the stop lever 6 is pressed against the stop lever spring 44.
It engages with the step cam 2-c of the rack plate 2 by the urging force of. At this time, the rack portion 2-b of the rack plate 2 and the gear 29-a of the pulley gear 29 mesh with each other.

The clamp plate 6 that presses the disc 8 against the turntable 36 has a protruding pin 5 attached to the support 9-c of the loading base 9.
-c is inserted and held rotatably by the claw 9-e. At this time, the support bin s-f engages with the clamp cam 2-d of the rack plate 2.

A clamp plate spring 47 is applied to the hook 5-j of the clamp plate 6 and the hook 9-d of the loading base 9, and urges the clamp plate 6 upward (arrow 49). 33 is an optical pickup for reading signals from the disk 8.

In addition, as shown in FIG. 16, conventional loading base 9
is attached to the chassis 52 of the disk performance device 4 by the screw 63.
was attached directly to.

The operation of the disc loading device configured as described above will be explained below.

The position of the loading base 1 in FIG. 16 is shown by a solid line when the disc tray 1 is ejected from the disc playing device 4 by operating the eject knob 42 for the purpose of replacing the disc 8, etc. The broken line shows the stored state for playing No. 8.

In FIG. 17, the driving force for loading the disc tray 1 is generated by the rotational force of the loading motor 26 being transmitted to the rack plate 2 through the motor pulley 27, rubber belt 32, and pulley gear 29.

FIG. 18 shows the state immediately before the disc tray 1 is stored in the disc playing device 4, that is, the position where the protruding rib 3-c of the lobbing lever 3 and the release pin 9-f formed on the loading base 9 are in contact. show. In the direction in which the disc tray is ejected from this abutting position (arrow SO), the hooks a-d of the lock lever 3 and the square pins 2-q of the rack plate 2 are pushed by the biasing force of the lock lever spring 24. Since the rack plate 2 is engaged, the rack plate 2 is held fixed to the disk tray 1, and the disk tray 1 performs a loading operation by receiving the rotational force of the loading motor 26.

Next, in order to play the disc 8, the disc tray 1 is further loaded and moved to the position where the disc tray 1 is completely stored in the disc playing device 4 (the state indicated by the dashed line of the disc tray 1 in FIG. 16). , the end surface of the disc tray 1 comes into contact with the stopper 49, and the disc tray 1 stops operating.

At this time, as shown in FIG. 19, the protruding rib 3-c and the release pin e-f are in contact with each other, so the lock lever 3 rotates from the state shown by the solid line to the state shown by the one-dot chain line, and the rank plate 2
The square bottle 2-g and the hook portion 3-d become disengaged.

Further, since the protruding pin e-b of the stop lever e is pushed by the step cam 2-a of the rack plate 2, the stop lever 6 rotates from the solid line position to the dot-dashed line position.

As described above, when the rack plate 2 disengages from the disk tray 1 and further advances to the arrow 51 in FIG. 18, the clamp cam 2-d of the rack plate 2 and the support pin s- of the clamp plate 5
f is engaged, and the clamp plate 5 overcomes the biasing force of the clamp leaf spring 47 and rotates in the direction of the turntable 36, thereby pressing the disc 8 against the turntable 35 and playing the disc 8. conduct.

At this time, the protruding pin e-b of the stop lever 6
Pushed by the stepped cam 2-c, the stop lever 6 further rotates, changing from the position indicated by the one-dot chain line to the position indicated by the two-dot chain line, as shown in FIG.

Then, the claw 6-c of the stop lever 6 engages with the square bin 1-In of the disc tray 1, and the disc tray 1 is fixed to the loading base 9.

As shown in FIG. 16, the loading base 9 is fixed to the chassis 62 of the disc playing device 4 with screws 53, so that the disc tray 1 does not move from the disc playing device 4, and the disc tray 1 does not move from the disc playing device 4 while the disc 8 is being played. It becomes possible to perform music without interference between the tray 1 and the disc 8.

Problems to be Solved by the Invention However, as shown in FIG. 16, in the past, the loading base 9 was directly attached to the chassis 62 of the disc playing device 4 with screws 63.

In this method, the running noise during the loading operation of the disk tray 1 is directly transmitted to the chassis 62, and the chassis 52
The vibration of the floor on which the disc playing device 4 is installed is transmitted to the loading base 9, causing the disc tray 1 to resonate.
There were also problems that affected the running of the car.

The present invention solves the above-mentioned conventional drawbacks, and has a simple configuration that prevents resonance of the housing due to vibration noise of the motor of the loading mechanism, and prevents external vibrations from being transmitted to the loading mechanism. It is an object of the present invention to provide a vibration isolating device for a loading mechanism that can also reliably position a loading mechanism section with respect to a casing.

Means for Solving the Problems In order to solve the above-mentioned problems, the vibration isolating device for the loading mechanism of the present invention includes at least a tray that can be ejected and stored with respect to the casing, and a motor that drives the ejection and storage of the tray. a loading mechanism section including a drive section, a pair of guide support members that guide and support ejection and storage of the tray by the drive of the drive section, and a loading base that fixedly positions the guide member; and a loading mechanism section that supports the loading mechanism section. The leg includes a plurality of legs, a vibration isolating washer having a screw fixing hole for the leg provided in the casing, and a threaded through hole made of a viscoelastic material, and supports a loading mechanism section in the casing. is fixed with a screw through the vibration isolating washer.

Further, a convex portion provided on the lower surface of the leg, a through hole opposite to the convex portion provided near the screw fixing hole of the leg portion of the casing, and a periphery provided on the vibration isolating washer are provided in the casing. a through hole opposite to the protrusion having a rib that can be inserted into the through hole of the casing, and the protrusion of the leg is inserted into the through hole of the housing with the rib of the vibration isolating washer interposed therebetween. It is characterized in that the legs are fixed to the housing with screws while being positioned.

A convex portion provided on the lower surface of the leg, a through hole opposite to the convex portion provided near the leg screw fixing hole of the casing, and a through hole of the casing provided in the vibration isolating washer. and a recess into which the projection provided on the lower surface of the leg can be inserted, and the leg and the projection of the leg can be inserted through the vibration isolating washer and the recess and projection of the vibration isolating washer. It is characterized by being fixed to the housing with screws.

Effect: According to the configuration of the present invention, the anti-vibration washer is interposed between the legs supporting the loading mechanism section and the casing, so that the running noise generated during the loading operation of the tray is directly transmitted to the casing. This can prevent the casing from resonating and external vibrations from being transmitted to the loading mechanism. The convex part of the leg is inserted into the through hole of the casing with the rib of the anti-vibration washer interposed, and the leg is positioned in the casing, thereby positioning the casing and the loading mechanism part.
This can be achieved while maintaining the anti-vibration effect. Further, since the legs and the convex portions of the legs are interposed between the vibration isolating washers and the concave portions and convex portions of the vibration isolating washers, a vibration isolating device for the loading mechanism portion that is extremely easy to assemble is realized.

Embodiment Hereinafter, an example of a loading device for discs, etc. according to the present invention will be explained with reference to the drawings.

FIG. 7 shows the entire disc playing device 4. The disc tray 1 indicated by a broken line is housed in the front panel 7 of the disc playing device 4, and is in a position where the disc 8 can be played.

The solid line indicates the position where the disc tray 1 is loaded from the front panel 7, and the user loads the disc 8, for example, in order to exchange or play the disc. , ribs 1 formed on both sides of the disc tray 1 are attached to guide grooves 11-a and 12-a formed on the support plates 11 and 12, which are fixed to both sides of the loading base 9 with screws 1o. -a, the arrow 1 is slidably engaged between the playing position of the disc 8 and the loading position of the disc 8, as shown above.
It is configured to be movable in three directions. Disc tray 1
A retaining hook 1-b is formed on the disc tray 1, and when the disc tray 1 is loaded into the loading position of the disc 8, the retaining hook 1-b and the protrusion 11-b formed on the support plate 11 are formed. are configured so that they come into contact with each other.

The disk tray 1 includes a rack plate 2 which is slidably assembled in the direction of an arrow 13 by bosses 1-e and seven ribs 1-f formed on the disk tray 1, and is attached with screws 17.
The guide groove 1-q formed in the disc tray 1 and the protruding pin 19-a of the disc holder plate 18 are used to rotate the disc tray 1 with respect to the arrow 13 indicating the loading operation direction.
The disk holder inserted so as to be vertically movable in the direction of arrow 16 is rotatably supported with respect to the disk tray 1 by the plate 18 and the support ribs 1-h formed on the disk tray 1. The disc tray 1 is composed of an elevating ring 20 and a lock lever 3 rotatably incorporated into a protruding pin 1-i formed on the disc tray 1. The protruding pin 18-a of the disk support plate 1 is slidably engaged with the inclined cam 20-a formed on the elevating ring 20, and the inclined cam 20-a
The lifting ring 20 is slidably supported on the bottom surface of the disc tray 1 by screws 21 fixed to bosses 1-j formed on the disc tray 1, and the disc holder is connected to the plate 18 with respect to the disc tray 1. The elevating ring 20 is being assembled. Further, the pin 20-b formed on the elevating ring 2o is slidably engaged with the cam portion 2-a formed on the rack plate 2, and the pin 20-b of the elevating ring 20
A stopper piece 22 is fixed to b to prevent the aforementioned cam portion 2-a and pin 20-b from coming out of engagement. The lock lever 3 is rotatably supported with respect to the disc tray 1 by fixing a retaining ring 23 to the protruding pin 1-1 of the disc tray 1.
3 is a protruding pin 3 of the lock lever 3 due to the urging force of the lock lever spring 24 supported by the hook 3-a formed on the lock lever 3 and the hook 1- formed on the disk tray 1. -b is held pressed against the stepped cam portion 2-c of the rack plate 2.

A drive motor 26 is fixed to the loading base 9 with screws 26, and an output shaft 2 of the drive motor 26 is fixed to the loading base 9.
A motor pulley 27 is fixed to 6-a.

A pulley gear 29 is rotatably inserted into a pulley gear shaft 28 press-fitted into the support plate 12, and the washer 14 is inserted into a groove 28-a of the pulley gear shaft 28 and supported. Further, the support plate 12 includes a drive gear shaft 30.
is also press-fitted and fixed, and a drive gear 31 is rotatably incorporated therein. The large gear 31-a of the drive gear 31 and the gear 29-a of the pulley gear 29 engage with each other, and the motor pulley 27 and the pulley part 29-b of the pulley gear 29 are connected by the rubber belt 32, thereby driving the drive motor. 26 is transmitted to a small gear 31-b formed in the drive gear 31 at a predetermined reduction ratio. Drive gear 3
1 is supported with respect to the support plate 12 by a pulley portion 29-b of the pulley gear 29.

To attach the clamp plate 5 and the support plate 12, insert the protrusion pin 5-c of the clamp plate 6 into the recess of the protrusion 12-b of the support plate 12, then insert the protrusion pin s-d of the clamp plate 6 into the support plate. Board 1
Insert the claw 12-d of the protruding part 12-C of No. 2 into the groove 12-f of the protruding part 12-C while opening it in the direction of the arrow 19.
When d returns to its original state due to elasticity, the protruding pin s- of the clamp plate 5
Removing d is a stop. Traverse mechanism block 3
4 is operated by a floating shaft 38 via a floating spring 36 and a viscoelastic floating rubber 37.
It is attached to the loading base 9.

The operation of the disc loading device configured as described above will be described below with reference to the drawings.

In FIG. 4, when the disc tray 1 is inserted into the loading base 9, the reference rack 2-b formed on the rack plate 2 and the small gear 31-b of the drive gear 31 engage with each other, and the drive motor 26 is activated. The output is transmitted to the disk tray 1.

When the disc tray 1 is loaded in a protruding direction with respect to the disc playing device 4, the rack plate 2 is the reference rack 2-b and receives the rotational force of the drive motor 260 through the pulley gear 29 and the drive gear 31. Therefore, the rack plate 2 is still in contact with the front side of the disc tray 1, and the disc tray 1 is loaded in the direction of the arrow 54. At this time, the rank plate 2 is in a state where the protruding pin 3-b of the lock lever spring 24 is pressed against the recess of the step cam part 2-c of the rack plate 2 by the biasing force of the lock lever spring 24, As shown in FIG. 8, the bin 20-b of the elevating ring 2o is stopped in the groove of the cam portion 2-a by the cam portion 2-a of the rack plate 2, so that the inclined cam 20-a of the elevating ring 2o
In this case, the disc support holds the protruding pin 1s-a of the plate 18 at the upper position of the inclined cam 20-a, and as a result,
When the rack plate 2 is in contact with the front side of the disc tray 1, the disc holder plate 18 is moved in the loading direction of the disc tray while engaging the protruding pin 1B-af with the guide groove 1-q of the disc tray 1. 6, it is held in a vertical direction with respect to arrow 13, that is, in an upper position in the direction of arrow 15. At this time, the loading base 9 when the disk 8 is mounted on the plate 18 and the disk holder is mounted on the plate 18.
As shown in FIG. 10, the height position of the traverse mechanism block 34 relative to the loading base 9 of the rotating turntable 35 in which all the disks 8 are installed is higher than the height position of the traverse mechanism block 34 relative to the loading base 9. Even if the disc tray 1 is loaded with the receiver placed on the plate 18, the disc 8 will not collide with the turntable 35.

Furthermore, when the disc tray 1 is loaded in the direction in which it protrudes from the disc performance device 4, as shown in FIG.
A clamp plate 6 is inserted rotatably in the direction of arrow 16.
is the slide screw 39 fixed to the disc tray 1.
As a result, the slide rib s-b of the clamp plate 5 is pushed up, so the clamp plate 5 rotates in the upward direction of the arrow 16, and the clamper 40 incorporated at the tip of the clamp plate 6 is also lifted, and the disk tray 1 During the loading operation, the clamp plate 5 and the clamper 40 do not collide with the disc tray 1.

Further, as shown in FIG. 4, when the disc tray 1 is loaded in the direction of protruding from the disc performance device 4 (arrow 54), the switch pin 12-j formed on the support plate 12
The detecting lever 41-a of the open switch 41 attached by the fixing claw 12-k is held in a conductive state (indicated by diagonal lines) by the rib 1-a of the disc tray 1, but the disc tray 1 loads the disc 8 to the loading position, the detection lever 41
-a is removed from the rib 1-a, and the open switch 41 changes from a conductive state to a cutoff state (shown only by a solid line). The loading operation of the disc tray 1 can be stopped by sensing this change in the open switch 41 with the microcomputer of the electric circuit system of the disc performance device 4 and stopping the rotation of the drive motor 26.

When the disc tray 1 is in the disc 8 loading position and until the disc tray 1 is housed in the front panel 7 of the disc playing device 4 from the above-mentioned position, that is, the disc tray 1 is in the front panel 7. If the rack plate 2 is loaded even slightly in the protruding direction, the rack plate 2 is pressed toward the front of the disc tray 1 by the rotational force of the drive gear 31, and the protruding pin 3-b of the lock lever 3 and the step cam of the rank plate 2 2-c is in the engaged state (indicated by the broken line), and as shown in Fig. 8, the pin 2 of the lifting ring 2°
0-b is fixed to the disc tray by the cam part A2-a of the rack plate 2, so the disc holder is fixed to the disc tray by the cam part A2-a of the rack plate 2.
Even if the user starts the loading operation while holding down the disc 8 and the disc holder, the plate 18 will not be lowered, and the loading operation of the disc tray 1 will not be hindered.

When the user operates the eject knob 42 arranged on the front panel 7 of the disc playing device 4 with the disc tray 1 protruding as shown in FIG. 7, the drive motor 26 shown in FIG. The tray starts rotating in the tray housing direction, and the rotational force of the drive motor 26 is transmitted to the reference rack 2-b of the rack plate 2 through the reduction mechanism of the pulley gear 29 and the drive gear 31. The rack plate 2 moves in the rear direction of the disc tray 1, that is, in the storage direction of the disc tray 1 (arrow 56). At this time, the rotation center of the lock lever 3 on the disc tray 1, that is, the position of the protruding pin 1-i of the disc tray 1 into which the lock lever 3 is inserted, and the rank plate 2
The protruding pin 3-b of the lock lever 3 that was in contact with the step cam portion 2-c of the lock lever 3 is displaced, and the biasing force of the lock lever spring 24 is in the direction of pressing the lock lever 3 against the rack plate 2, that is, as described above. Even if the rack plate 2 moves, the lock lever 3 will not move away from the rack plate 2. Therefore, as the rack plate 2 moves, the lock lever 3 will move the disk tray 1 in the storage direction. It will be loaded into. Since the engagement between the rank plate 2 and the lock lever 3 is not released, the plate 18 (shown in FIG. 8) of the disk holder does not fall.

When the user directly pushes the disk tray 1 in the storage direction (arrow 55 in FIG. 4), the rack plate 2 moves at the same time, the drive gear 31 also starts rotating, and the 1 drive motor 26 also moves the disk tray 1~ Mechanically rotates in the storage direction. However, when the disc tray 1 is operated, the rib 1-a is activated by the detection lever 41-a of the open switch 41.
is pressed, the open switch 41 changes from the cutoff state to the conduction state, and the microcomputer senses this and turns on the drive motor 2.
6 is electrically rotated in the direction in which the disc tray 1 is accommodated, so that the disc tray 1 can start the loading operation without the user's hand. That is, it is also possible to accommodate the disc tray 1 by pushing the disc tray 1 without operating the eject knob 42 on the front panel 7 shown in FIG.

As shown in FIG. 4, the disk tray 1 is connected to the front panel 7.
The protruding rib 3-c of the lock lever 3 and the lock rib 12-t of the support plate 12 come into contact with each other just before the lock lever 3 is stored in the lock lever 3. The contact position between the protruding rib 3-c and the lock rib 12-t is located at the stepped cam portion 2-c of the rack plate 2 with the rotation center of the lock lever 3 as a reference.
Since the lock lever 3 is provided on the opposite side of the abutting position of the protruding pin s-b of the lock lever 3, the lock lever 3 is moved against the biasing force of the lock lever spring 24, and the step cam 2- of the rack plate 2
0 and the protruding pin 3-b of the lock lever 3 rotate in the direction of separation (arrow 6θ).

When the rotation of the lock lever 3 is at the position of the protruding pin s-b and the lock rib 12- of the support plate 12 is moved to the side with reference to the rotation center of the lock lever 3, the lock rib 12- formed on both sides of the disk tray 10 , stopper rib 1-t, and support plate 1
1 stop rib 11-C and support plate 12 stop rib 12-m
are configured so that they are in contact with each other. Therefore, the disc tray 1 stops at the aforementioned position, that is, the position housed in the front panel 7. Further, the stopping position of the disc tray 1 at this time is configured such that the center of the turntable 36 of the traverse mechanism block 34 and the center of the disc holder plate 18 coincide with each other, as shown in FIG. Naturally, the center of the disc 8 loaded on the plate 18 will also coincide with the disc holder, but the diameter of the disc 8 accommodation recess 1-c of the disc tray 1 is set so that the disc 8 does not interfere with the disc 8 during play. However, since the tip of the centering ring 36-a housed in the turntable 36 is tapered as shown in FIG. Even if the disc 8 is eccentric to the inner wall of the disc 8, the disc 8 can be guided by the taper and mounted on the turntable 36.

As shown in FIG. 4, after the disk tray 1 is housed in the front panel 7 and stopped, the rack plate 2 supports the protruding pin 3-b of the lock lever 3 by the rotational force of the drive gear 30, and the lock rib 12- of the plate 12. While pushing the disc tray 1 toward the side, move the disc tray 1 in the storing direction (arrow 6).
6) Slide. Therefore, the stepped cam portion 2-c of the rank plate 2
The convex surface 2-f holds the protruding pin 3-b of the lock lever 3 in a hooked state to the lock rib 12-4 (indicated by the solid line in the position where the disc tray 1 is stored in FIG. 4). For example, even if the disc playing device 4 is in a tilted state, the disc tray 1 will not shift and protrude from the front panel 7. At this time, in order for the protruding pin 3-b of the lock lever 3 to hook to the lock rib 12-4, the stopper rib 1-6 of the disc tray 1 and the lock lever must be connected to each other.
Compare the inner groove length B of the protruding pin 3-b of No. 3, the stop ribs 11-C and 12-m of the support plates 11 and 12, and the outer dimension C of the lock rib 12-4 of the support plate 12. ,
It is necessary to take a large inner groove length B, and the difference between the inner groove length B and the outer dimension C becomes a play against the loading base 9, that is, the disk playing device 4 when the disk tray 1 is stored. Therefore, if this backlash is made smaller than the difference between the outer diameter of the disc 8 and the inner diameter of the storage recess 1-C of the disc tray 1 shown in FIG. Tray 1 and disk 8 do not interfere with each other.

Further, as shown in FIG. 12-C, the slide screw 39 that was lifting the clamp plate 6 and the slide rib s-b of the clamp plate 6 come into contact with each other when the disk tray 1 is on the front panel 7.
The clamp cam 2 formed at the rear of the rack plate 2 comes off just before it is stored in the rack plate 2.
-d holds the support pin sf formed on the clamp plate 5, so the clamp plate 6 is supported in the upper position. At this time, if the end face of the slide rib s-b is sloped 6-j, the direction in which the disc tray 1 protrudes from the front panel 7 (
When the loading operation is performed in the direction of arrow 64), the rack plate 6
When the height of the clamp plate 6 supported by the clamp cam 2-d and the height of the clamp plate 5 supported by the slide screw 39 are different, the movement can be made smooth with less shock. .

Furthermore, as shown in FIG. 4, the rack plate 2 slides in the direction of arrow 66 with respect to the disk tray 1 due to the rotational force of the drive motor 26. At this time, as shown in FIG. 8, the elevating ring 2o is rotated in the direction of the arrow 67 by the cam portion 2-a of the rack plate 2, and the inclined cam 20-a is rotated at the same time, so that the disc holder is rotated by the protruding pin of the plate 18. 18-a is the inclined cam 20 along the guide groove 1-q of the disc tray 1.
- descend according to the rotation of a. And the disc holder is plate 1
The disk 8 loaded on the upper surface of the disk 8 is mounted on the turntable 36 of the traverse mechanism block 34.

At this time, it is formed on the rack plate 2 as shown in FIG. 12A. Since the clamp cam 2-d also moves, the support pin 5 of the clamp plate 6 engaged with the clamp cam 2-d
-f also moves downward according to the cam groove of the clamp cam 2-d, the clamp plate 5 rotates, and the clamper magnet 4 housed in the clamper 40 as shown in FIG.
0-a, the clamper 40 presses the disc 8 against the turntable 35. Furthermore, the clamp plate 5 is rotated via the support bin 5-f by the operation of the clamp cam 2-d of the rack plate 2, and the clamp plate 5 is moved to a position away from the protruding claw 40-b of the clamper 4Q, that is, as shown in FIG. The stop bin 5-g formed on the clamp plate 5 shown in B stops in contact with the upper surface of the disk tray 1.

At this time, the switch cam 2-e of the rack plate 2 shown in FIG.
The detection lever 43-a of the close switch 43, which is attached at point o, is pushed, and the close switch 43 changes from a cutoff state (shown by a solid line) to a conduction state (shown by a diagonal line). This change in the close switch 43 is sensed by the microcomputer of the electric circuit system of the disk performance device 4, and the rotation of the drive motor 26 is stopped, thereby stopping the operation of the rack board 2.

Note that by forming the turntable 36 shown in FIG. 1 from an iron plate, the aforementioned clamper magnet 4
The clamper 40 is attracted to the turntable 35 by the magnetic force of 0-a, and the optical disc 8 is placed on the turntable 36.
Since the turntable 350 is held in a pressed state, the turntable 350
Stable performance can be achieved without the optical disc 8 slipping even during rotation. In the turntable 35, the traverse mechanism block 34 is connected to the loading base 9 by a floating spring 36 and a floating rubber 3.
Since the clamp plate 6 and the clamper 40 are supported in a floating state at 7, external vibrations are not transmitted to the traverse mechanism block 34 even if the clamp plate 6 and the clamper 40 are separated.

The rotation timing of the clamp plate 6 differs from the lowering timing of the plate 18, that is, the lowering timing determined by the shape of the inclined cam 20-a formed on the elevating ring 2o, as shown in FIG. It is. Tsumashi,
In the disk holder, the plate 18 is lowered, the disk 8 is placed on the turntable 35, guided by the taper of the centering ring 35-a, the disk 8 is centered, and then the clamp plate 5
is rotated by the clamp cam 2-d of the rank plate 2, and the first
Since the clamper 40 shown in the figure and the disc 8 are configured to come into contact with each other, the disc 8 does not become eccentric with respect to the turntable 35, and high-performance playability is achieved. When the disc tray 1 is to be projected from the front panel 7 in the playing state of the disc 8 shown in FIG. 7, the drive motor 26 shown in FIG. (arrow 64) and slides the rack plate 2 toward the front of the disk tray 1. At this time, the convex surface of the step cam portion 2-c of the rack plate 2 touches the protruding bin s-b of the lock lever 3. Since the lock rib 12-t of the support plate 12 holds the disc tray 1 in a hooked state, the disc tray 1 is stopped and the 12th
The support pins s-f of the clamp plate 6, which are engaged with the clamp cams 2-d of the rack plate 2 shown in FIG. After the clamper 4o is separated from the disc 8, the eighth
By rotating the elevating ring 20 via the pin 20-b of the elevating ring 20 by the cam portion A2-a of the rack plate 2 shown in the figure, and rotating the disk receiver in the direction (arrow 68) in which the plate 18 rises. , the disc holder is the protruding pin 18 of the plate 18.
-a follows the inclined cam 20-a of the elevating ring 20, the disk holder lifts the plate 18 along the guide groove 1-g of the disk tray 1, and the disk 8 also moves upward away from the tar/table 36.

As the rack plate 2 further slides in the front direction (arrow 64) of the disk tray 1, the clamp plate 5 is moved to the position shown in FIG.
According to the movement of the clamp cam 2-d of the rack plate 2 shown in C, the rack plate 2 further rotates upward via the support pin cs-f.

As for the disc holder, the plate 18 connects the disc 8 and the turntable 36.
When the disc 8 is lifted to a position where it does not collide with the disc tray 1 (as shown in FIG. 10), the clamp plate 6 is also moved upward by the action of the rank plate 2 to a position where the clamper 40 does not interfere with the disc tray 1, as shown in FIG. rotate in the direction.

As shown in FIG. 4, the step cam portion 2-c of the rack plate 2 is
When the lock lever 3 moves to the position of the protruding pin 3-b, the lock lever 3 rotates in the direction of arrow 69 due to the biasing force of the lock lever spring 24, and the protruding pin 3-b and the lock rib 12-6 of the support plate 12 hook together. comes off. Projecting pin 3-
b rotates until it contacts the step cam part 2-c, and at this time, the rack plate 2 is pressed against the front surface of the disk tray 1 in the direction in which the disk tray 1 protrudes from the front panel 7 (in the direction indicated by the arrow). 54) to start the loading operation. Then, the disc tray 1 is moved to the loading position of the disc 8 and stopped when the open switch 41 is changed.

According to the above embodiment, as shown in FIG. 1 in a cross-sectional view and FIG. 3 in a perspective view, the supporting plates 11 and 12, which are fixed to the loading base 9 with the screws 1o, are made of a viscoelastic material. The loading base 9 and the chassis 62 are floated by the vibration-proof washers 60 and 61 by fixing them to the chassis 52 with step screws 62 via the vibration washers 60 and 61. As described above, according to this embodiment,
It is possible to prevent the running noise of the disc tray 1 during the loading operation from being transmitted to the chassis 52 and causing the chassis 62 to resonate. Furthermore, external floor vibrations are not transmitted from the chassis 52 to the loading base 9.

Furthermore, as shown in FIG. 3, since the loading motor 26 is also attached to the loading base 9 with screws 26, direct rotational vibrations of the loading motor 26 are not transmitted to the chassis 52, which also has the effect of realizing a quiet loading device. .

Furthermore, according to the present embodiment, as shown in FIGS. 1 and 3, a protruding rib 60-a is provided on the vibration-proof washer 6o, and a protruding pin 12-p of the support plate 12 is inserted into the protruding rib 60-a of the chassis 52. By inserting the loading device into the opening 7-a of the front panel, it is possible to install the loading device to the disc playing device 4 without shifting the position of the disc tray 1 and with a high vibration-proofing effect. It has the effect of becoming In addition, as shown in FIG. 2, the protruding rib 60-a of the anti-vibration washer 6o has a garden shape, so that when inserting the loading base 9, for example, the anti-vibration rubber 60-a
Even if Q is floating above the chassis 62, the support plate 1
By the protruding pin 12-p formed in 2, the protruding rib 60-a
can be pushed into the chassis 62, which has the effect of realizing a method of attaching the loading device to the disc playing device 4 with extremely high assembly efficiency.

Effects of the Invention According to the configuration of the present invention, the anti-vibration washer is interposed between the legs supporting the loading mechanism and the casing, so that the running noise generated during the loading operation of the tray is directly transmitted to the casing. This can prevent external vibrations from being transmitted to the body, causing the casing to resonate, and from being transmitted to the loading mechanism. In addition, the convex part of the leg is inserted into the through hole of the casing through the rib of the vibration isolating washer, and the leg is positioned in the casing, thereby positioning the casing and the loading mechanism.
This can be achieved while maintaining the anti-vibration effect. In addition, since the legs and the convex portions of the legs are connected to the vibration isolating washer and the concave portions and convex portions of the vibration isolating washer, a vibration isolating device for the loading mechanism portion that is extremely easy to assemble is realized.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the operation of a disk loading device according to an embodiment of the present invention, and FIG. 2 is a sectional view showing another effect of the method of connecting the supporting plate 12 of the loading base 9 and the chassis 52 according to the present invention. FIG. 3 is a perspective view showing another effect of the method of coupling the supporting plates 11, 12 of the loading base 9 and the chassis 62 according to the present invention, and FIG. 4 shows the operation of the disk loading device according to an embodiment of the present invention. 6 is a sectional view of FIG. 7 taken from arrow I-1; FIG. 6 is an exploded perspective view of the entire disk loading device according to the present invention; FIG. 7 is a disk rope according to the present invention; FIG. 8 is a perspective view showing the entirety of a disc playing device incorporating an ink device; FIG. 8 is a plan view showing the operation of an embodiment of the present invention; FIG.
The figure is a cross-sectional view showing the engaged state of the protruding pin 18-a of the plate 18 between the inclined cam 20-a of the elevating ring 2o and the disc holder according to the present invention, and Fig. 1o is a view of Fig. 8 seen from the arrow J-J. The sectional view, FIG. 11, shows the cam portion A2 of the rack plate 2 according to the present invention.
12A to 12C are side views and perspective views showing the method of supporting the clamp plate 6 to the disk tray 1 according to the present invention, and FIGS. 13A to 13 C is a method of attaching the clamp plate 5 to the support plate 12 according to the present invention, and is a cross-sectional view and a perspective view showing another effect;
4A to 14B are perspective views and sectional views showing other effects of the plate 18 of the disk holder of the present invention, and FIG. 16 is an overall perspective view of a disk playing device 4 incorporating a conventional disk loading device. , FIG. 16 is a sectional view of FIG. 15 as seen from the arrow -, FIG. 17 is an overall perspective configuration diagram showing a conventional example,
FIG. 18 is a plan view showing the operation of the conventional example, and FIG. 19 is an enlarged plan view showing the operation of the conventional example. 1... Disc tray, 2... Rack plate, 2-C... Cam section, 3... Lock lever -14... Body ( disk performance device), 2
4...Lock lever spring, 12-t...
・Hook rib, 11...Support plate, 12...
...Support board. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 5
Figure 7 Figure 13 (Figure 14 Figure 15 Figure 16

Claims (3)

[Claims] (1) At least a tray that can be ejected and stored with respect to the housing, a drive unit including a motor that drives ejection and storage of the tray, and a pair of guide support members that guide and support the ejection and storage of the tray by driving the drive unit. and a loading base that fixes and positions the guide member, a plurality of legs that support the loading mechanism, and screw fixing holes of the legs provided in the casing and a viscoelastic body. 1. A vibration isolating device for a loading mechanism, comprising a vibration isolating washer having a threaded through hole, and a leg portion supporting a loading mechanism section is screwed to the housing via the vibration isolating washer. (2) A convex portion provided on the lower surface of the leg, a through hole opposite to the convex portion provided near the screw fixing hole of the leg portion of the casing, and a periphery provided on the vibration isolating washer. a through hole opposite to the protrusion having a rib that can be inserted into the through hole of the casing, and the protrusion of the leg is inserted into the through hole of the housing with the rib of the vibration isolating washer interposed therebetween. 2. The vibration isolating device for a loading mechanism according to claim 1, wherein the legs are fixed to the housing with screws while being positioned. (3) A convex portion provided on the lower surface of the leg, a through hole facing the convex portion provided near the leg screw fixing hole of the casing, and a through hole of the casing provided in the vibration isolating washer. and a recess into which the projection provided on the lower surface of the leg can be inserted, and the leg and the projection of the leg fit into the vibration isolating washer and the recess and projection of the vibration isolating washer. 2. The vibration isolating device for a loading mechanism according to claim 1, wherein the vibration isolating device is fixed to the housing with screws.