JPS61172264A - Front loading disc player - Google Patents

Abstract

PURPOSE:To reduce the space in a player by arranging a shake supporting shaft of a supporting member so that the free end part of the shake supporting shaft is moved toward the rotation center of a turntable when the free end part of a supporting member of a container is shaked in the direction where it approaches the turntable. CONSTITUTION:The container is provided which consists of a pair of supporting members 19 and 20 which are provided on a tray 10 and cooperate with the tray 10 to hold and move a disc 18. One parts 19a and 20a of free end parts of members 19 and 20 are projected into a cylindrical part from an opening part 11b. Supporting parts 19b and 20b which support the principal surface of the disc 18 and taper disc guide parts 19c and 20c are formed on parts 19a and 20a. Free end parts of shake supporting shafts 19d and 20d of members 19 and 20 are moved toward the rotation center of the turntable when free end parts of members 19 and 20 are moved in the direction where they approach the turntable. Thus, the disc 18 is positioned correctly on supporting parts 19b and 20b, and the space in the disc player is reduced to make the device small-sized.

Description

TECHNICAL FIELD The present invention relates to a disc player, and more particularly to a front-loading disc player equipped with a disc transport mechanism that automatically transports a disc to a playing position.

BACKGROUND TECHNOLOGY Audio subdisc J: or PCM with sound grooves on the surface
1. A disk carrier is provided that can protrude and store a disk such as a digital audio recording disk on which signals have been recorded by inserting it into the housing of the Play V. 1. It is a type that can be completely stored in the housing by holding a V in the part, so that the space on the surface of the disk can be used effectively, such as when placing objects. It is also known as the so-called front [1-ding J" iskbrae II/BA1 modification.

Recently, such a front-loading disc play has been developed that is equipped with a disc transport mechanism that includes the above-mentioned disc holder and automatically transports the disc to the playing position, thereby eliminating the hassle of disc loading. ing. When positioning the disc mounted on the disc holder outside the plano housing on the playing position, that is, on the turntable, for example, in two directions, one parallel to the rotating surface of the turntable and the other perpendicular to it. The disk is moved and sent W2.

FIG. 21 shows a disc holder that has already been developed. In FIG. 21, Rays 1 to 150 are provided on a predetermined support member so as to be able to reciprocate in directions parallel to the turntable rotation surface (not shown) (the direction of arrow Y and the opposite direction thereof), ], four circular parts 152 into which the disk 151 is inserted are formed in the center thereof. In the center of the tray 150, there is a plate ψ along with the tray.
A container 153 is provided which protrudes from the housing and supports the disc 151 in cooperation with the tray. It is movable in the opposite direction).

FIG. 22 shows another disc holder that has already been developed. As shown in FIG.
A pair of support members 155 are provided on the disk 151, which are swingable in a plane including a direction perpendicular to the turntable rotation plane (arrow Z direction and the opposite direction).
is supported at the free end of this support member 155. That is, each of these supporting members is tff
This corresponds to the container 153 that goes down into the disk holder mentioned above. Note that the same reference numerals are used for parts that are the same as or correspond to the disk holder described above.

In either case of the above-mentioned two examples of the disc holder, the outer periphery of the disc 151 during the disc performance is not affected by the recess 15 of the tray 150 regardless of the eccentricity of the disc in the radial direction.
Inner diameter of the recess: D so as not to contact the inner peripheral surface of No. 2
T h< is set. The disk 151 has a diameter of approximately 12
For a 0mm compact disc, this DT is approximately 1
It is set to about 24mm. Therefore, as shown in FIG. 23, the disk 151 supported by the container through the pad 156 at 1i can be displaced within the recess 152, and in this case, the amount of displacement is at most about 4 mm.

On the other hand, when the disk 151 is placed on the turntable as the container moves, the tapered guide portion protruding from the rotation center of the turntable causes the disk 151 to be placed on the turntable.
51, and the disk is moved in the radial direction by the action of the taper so that the center of the disk coincides with the center of rotation of the turntable. However, when the amount of disk deviation is large as described above, it is necessary to increase the height of the guide section that corrects the hip width (+Cf amount) in the radial direction, and the disk holding section including the tray 150 has a large height. Therefore, it is necessary to provide a large amount of space within the disc player for this purpose.Therefore, this has been a problem in reducing the size of the disc player.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and its object is to provide a front-loading disc player that can be miniaturized as a whole.

A front-loading disc player according to the present invention includes a housing, a playing means disposed within the housing including a turntable, and a playing means carrying a disc to be played and having a first predetermined direction and a first predetermined direction perpendicular thereto. 2. a disc transport mechanism that moves the disc in a predetermined direction and transfers the disc onto the turntable; the disc transport mechanism 11a includes a support member; a freely disposed tray; and a tray disposed on the first tray, both of which can protrude to the outside of the housing, and cooperate with the tray to carry the disk and move the disk to the second predetermined position. a container for movement in a direction, the container comprises at least a pair of support members swingably provided in a plane including the second predetermined direction and supporting the disk at a free end; A support portion that supports the main surface of the disk and a tapered disk guide portion that is continuous with the support portion and is engageable with the outer periphery of the disk are formed at the free end of the support member, and the free end portion The swing support shaft of the support member is arranged such that when the support member swings in a direction approaching the turntable, the free end portion moves toward the rotation center of the turntable. ing.

Embodiments Hereinafter, a Freon 1 Hero loading disk player as an embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates the whole from the front 1 to the loading disk player.

As shown in FIG. 1, the front surface of the housing 2, that is, the front panel 3, is provided with a rectangular opening 3al) extending in the left-right direction so that a disk supporting portion, which will be described later, can protrude outside the housing. However, the left and right referred to here refers to the forward direction indicated by the arrow Y, and the direction of the arrow X is to the left.The direction of the arrow Z is upward. Although not shown, the rear panel 3-L is provided with a group of switches for operating the disc player.

As shown in FIGS. 2 and 4, a main chassis 5 as a support member is provided within the housing 2. As shown in FIGS. As is clear from FIGS. 2 to 5, a longitudinal sub-chassis 6 serving as a supporting member is arranged on the upper surface of the right end of the main chassis 5 and extends in the front-rear direction, and is attached to the main chassis 5 with screws. Fixed. The upper surface of this subchassis 6 has a V-groove 6 as a guide path extending in the front-rear direction.
a is formed. Further, a longitudinal presser member 7 formed by bending a steel plate or the like is screwed onto the groove 6a so as to face the groove 6a.

On the other hand, a support body 9 made of resin or the like is disposed near the opening 3a formed in the front panel 3 for storing a protruding disk holder, and is attached to the main chassis 5 with holes, screws, etc. ing. A tray 10'/J< is provided between the support 9 and the upper insert member 7. The tray 10 has a cover member 11 made of resin or the like.
It is formed of a slide base 12, etc., which is fixed to the right side of the cover member, which is made of a steel plate or the like, and corresponds to the subchassis 6. A VFfi 12a serving as a guide path is formed in the slide base 12 to face the groove 68 provided in the subchassis 6, and between the two V grooves there are, for example, two 1 Bearing Club Month 1/! A is interposed. In addition, for example, two second bearing parts 14h are arranged near the grooves 6a and 12a, and are in contact with the surface of the slide base 12 opposite to the groove plate.

The second bearing member is also rotatably held by the retainer 14. The above-mentioned presser member 7 includes the first bearing member 174a and the second bearing member 14. b towards the sub-chassis 6.

The above-mentioned sub-chassis 6 and a pair of Vifi 46a.

12a, and first and second bearing members 14a.

14b, retainer 1/4, and presser member 7,
A slide is a guide means that supports and guides the right side of the tray 10 (a part of a disk holding unit to be described later), which is composed of a cover member 11, a slide base 12, etc., only in the front-back direction, and is supported at at least two locations. A guide mechanism is configured.

Further, the support body 9 disposed near the opening 3a formed in the front panel 3 is movably supported only by moving the left side of the tray 10 (therefore, the disk holding section) in the forward direction. With a small amount of damage, the slide plates 1 and 15, which are fixed to the cover parts 411 (edges of the tray 10), are slidably engaged with each other. There is.

Together with the slide guide mechanism and the support body 9, a guide support mechanism is configured to support the entirety of the above-mentioned rays 1 to 10 (therefore, the disk supporting portion) in a movable manner relative to the housing 2. In addition, Freon 1 is attached to the front end of Rays 1 to 10.
- A decorative panel 16 that fits into and closes the opening 3a of the panel 3 is removed.

Here, as shown in FIG. 5, projections 7a and 7b which can be engaged with a retainer 14 (for example, shown in FIG. 4) are provided at both front and rear ends of the presser member 7, which forms a part of the slide guide mechanism.
is set up. In the slide guide mechanism described above, the retainer 14 moves as the first and second bearing members 14a and 1/Ib roll when the j to rays 10 reciprocate on the rib chassis 6. The movement stroke of the retainer is calculated from 1 to 10 movement strokes.
Loke half yells. The projections 7a and 7b control the movement of the retainer at the end of its moving stroke, i.e.
The regulating means acts at two positions corresponding to the movements of the rail 10, respectively.

As shown in FIG. 5, in the presser part J7, the bearing pressing force of the part of the holding member that corresponds approximately to the rearward movement restriction position of the retainer 1/I is greater than the bearing pressing force of the other parts. Slits 1 to 7C are formed so that the size of the slots becomes smaller. Bearing suppression of part of presser member 7
To make the pressure smaller than the bearing pressing force of other parts, a special mechanism must be provided for this purpose (there are many possible ways to do this, but according to Slips 1 to 7C)
1-. can be held down extremely cheaply. Also, slit 7C
Not limited to this, the first and second bearing parts when the retainer 14 reaches the rearward movement restriction position 14.8, 1 i)
The second bearing member 1 is attached to the presser member 7 in accordance with the position of
A similar effect can be obtained by forming a recess into which the recess 4b can fit.

As is clear from FIGS. 1, 4 and 6, the 1-ray 10 includes a playable disk 1 which can protrude to the outside of the housing 2 together with the tray and cooperates with the 1-ray.
A pair of longitudinal support members 19 and 20 are provided for supporting the disc 8 (as shown in the first figure) and for moving the disc vertically in the direction of arrow Z and the opposite direction. This pair of support parts 19 and 20 are collectively referred to as a container, and the container together with the tray 10 constitutes a disk support part. The support members 19 and 20 extend parallel to each other in the front-rear direction, and are each swingably attached to the tray 10 at one end in the short direction.

A cover member 11, which is a component of the tray 10, is provided with a cylindrical recess 11a whose axial center coincides with the vertical direction. Frontage portions 11b are formed at the four corners of the cylindrical recess 11a, and portions 19a and 20a of the free ends of the pair of support portions U19. It protrudes within 7fgI. As is particularly clear from FIG. 7, each portion 19 protrudes from the opening 11b.
a, behind 20a, for example 19a, there is a disc 1
A support portion 19b that supports the main surface of the disk 18, and a tapered disk guide portion 19c that is continuous with the support portion and that is engageable with the outer periphery of the disk 18 are formed. Also, the other support part 1. The support member 19 is also attached to part 2Qa of fl 20.
A support portion 20b and a tapered disk guide portion 2Qc are formed symmetrically to the portion 19a. Note that the swing support shafts 19d and 20d of the pair of support members 19 and 20 are such that when the free ends of the six support members swing in a direction approaching the turntable, which will be described later, the free ends of the support members 19 and 20 rotate. They are arranged so that they move towards the center.

That is, as the supporting members 19 and 20 for placing the disc 18 on the turntable swing, the tapered disc guide portions 190 and 200 of the six supporting members move l! from the outer periphery of the disc. The swing support shafts 19d and 20
d is placed.

Here, the above-mentioned supporting parts 19b and 20b are connected to the disk 1.
The outer circumferential edge of the main surface of No. 8, that is, the portion where no information is recorded, is supported.

-14= As is clear from the above, the disk 18 inserted into the cylindrical recess 11a (formed in the hollow cover member 11 of the tray 10) has disk guide portions 190 and 20c that engage with the outer periphery of the disk 18. precisely by the support part 19b, 2
Since the disc is guided on the ob, it is possible to support the disc only on the back side of the main surface of the disc where no information is recorded, and there is no fear that the disc recording surface will be damaged by contact with fine particles or anything. -ing

J shown in Figures 3 to 6: Sea urchin, I to Ray 10
A longitudinal moving part +123 extending in the front-rear direction is arranged on the right side of the slide base 12, which is a component of the slide base 12, and is attached to the slide base so as to be movable in the front-rear direction. The movable member 23 is made of resin or the like, and has a rack portion 23a formed at its lower end over substantially the entire length.

As shown in FIGS. 3 and 4, a rack portion 2 formed on the moving member 23 is provided on the right side of the front end of the sub-chassis 6.
A pulley 25 coaxially has a gear 2/'I that meshes with 3a.
is being freely rotated and interrogated. Behind the pulley 25 is a motor 26 with a small pulley 26a fitted on its output shaft.
A bell 1 27 is installed between the small pulley 26a and the pulley 25. Gear 24 mentioned above
The pulley 25, a motor 26 including a small pulley 26a, a belt 27, and the like constitute a driving force ("J"'5 mechanism) that applies a driving force to the moving member 23.

As shown in FIGS. 3 and 6, a longitudinal lever member 30 extending in the left-right direction is arranged near the rear end of the 1-lay 10. As shown in FIGS. Bins 30a extending in the left-right direction are protruded from both left and right ends of the lever member 30, and the lever member 30 is connected to the tray 10 (the cover member 1 of the tray 10) by means of the bins.
1), which is freely rotatable. Lever member 30
One end of rotation, in this case the lower end, is pivotally mounted on the moving member 23. Specifically, a bottle 30b extending toward the right is provided at the lower right end of the lever member 30.
This bin 30b is a U formed at the rear end of the moving member 23.
It is slidably fitted into the four letter-shaped portions 23b. As is clear from FIG. 6, the lever member 30 is located at its other pivoted end, that is, at the end opposite to the bin 30b with respect to the bin 30a. It is in contact with the bottom surface. On the other hand, as also shown in FIG. 6, a coil spring 31 is interposed between the supporting members 19 and 20, and the supporting members are attached in the direction of arrow P in FIG. 4 by the coil spring. Forced. That is, by driving the moving member 23 backwards with respect to the tray 10 (in the opposite direction of the arrow Y direction), the lever member 30 serving as the interlocking means is rotated in the arrow Q direction in FIG. Support member 1
9 and 20 are configured to swing in the direction of arrow P (as shown in the fourth figure) by the biasing force of the coil spring 31.

Next, both support members 19 and 20, which are containers, are locked to the tray 10 until the tray 10 reaches the storage position in the housing 2, and when the trays 1 to 10 reach the storage position, the support members 19 and 20 are locked. A locking/releasing means for releasing the locked state of the tray 10 and locking the tray 10 with respect to the sub-relay Shiro which is a supporting member will be explained.

As shown in FIGS. 2 to 5, the subchassis 6
A slide portion 6G extending parallel to the V-groove is formed on the upper surface of the V-groove 6a to the right of the V-groove. However, this slide portion 6C is simply a planar portion and is not distinguishable in shape from the square portion. Further, as shown in FIG. 6, a projecting portion 23d is provided on the left side surface of the moving member 23 in correspondence with the sliding portion 6c. On the opposing surfaces of each of the slide portion 6C and the overhang portion 23d,
A first recess 6d and a second fourth portion 23c are formed so as to face each other when the moving member 23, and therefore the tray 10, is in the storage position within the housing 2.

5 shows a state in which the tray 10 is housed in the housing 2, and FIGS. 1 to 4 show a state in which the tray 10 protrudes outside the housing 2. On the other hand, at the rear end of the slide base 12, which is a part of the tray 10, a small protrusion 12b is formed that protrudes to the right.

This protruding portion 121) is located between the slide portion 6C and the protruding portion 23d, and the protruding portion has the first fourth portion 6d.
A round opening (no reference numeral) that can face the second recess 23e is provided. Inside the opening is a first fourth part 6d.
A spherical rotatable member 33 that engages with the second fourth portion 23e is disposed. Here, the dimension indicated by da in FIG.
The distance between the opposing surfaces is smaller than the outer diameter of the rotatable member 33. Also, the dimension indicated by db in FIG. 3, that is, one of the opposing surfaces of the overhanging portion 23d and the sliding portion 6C and the corresponding one of the first recessed portion 6d and the second recessed portion 23e. The distance between the recess and the bottom surface is slightly larger than the outer diameter of the rotatable member 33.

The first recessed portion 6d, the second fourth portion 23e, and the slide base 12
When the frontage portions (no reference numerals) provided on the protruding portions 12b of the slide base 12 are coaxially opposed to each other, the front end bent portion 12C (shown in the third figure) of the slide base 12, which is the component side of the rays 1 to 1O,
It engages with the front end of the knob wheel 60 to restrict movement of the tray 10 in the tray housing direction (rearward). In addition, the first recess 6
(1, Second fourth part 230. Projection part 1 of slide base 12
When the openings provided in the trays 21) face each other, the moving member 23 is restricted from moving forward in the direction in which the tray protrudes from the 1-lay 10.

The above-described first recess 6d, second recess 23e, and protrusion 1
2b, the rotatable portion 33, and the first recessed portion 6.
d. When the second fourth part 23e and the above-mentioned frontage face each other, it restricts the movement of the 1 to 1 lays 1 to 10 in the 1 to 1 lay housing direction with respect to the rib chassis 6, and the movement of the moving member 23 in the 1 to 1 lay protrusion direction with respect to the tray 10. The movement regulating means locks the supporting members 19 and 20, which are containers, to the tray 10 until the rays 1 to 10 reach the storage position in the housing 2, and the movement of the support members 19 and 20 is locked to the tray 10 until the rays 1 to rays 10 reach the storage position in the housing 2. A locking/releasing means is provided which releases the locked state of both support members to the tray 10 and locks and covers the tray 10 with respect to the support member, ie, the support member.

In addition, the lock/release means, the guide support mechanism (including the rib chassis 6, etc.), the tray 10 and the support part 1J1
9.20 or the like, and the moving member 2.
3, a driving force applying mechanism consisting of a motor 26, etc., and peripheral small members related thereto, the disc 18 to be played is supported and moved in the first predetermined direction (back and forth direction: the arrow Y direction and the opposite direction) and A disk transport mechanism is configured to move the disk in a second predetermined direction perpendicular to this (up and down direction: arrow Z direction and the opposite direction) and transport the disk onto a turntable at a performance position (ie, rear).

Next, a description will be given of the playing means provided in the housing 2 for playing a disc.

As shown in FIGS. 2, 4, and 5, a mechanical chassis 35 serving as a mounting plate on which equipment is mounted is disposed between the subchassis 6 and the support body 9. Mecha chassis 3
5 has four leg parts 36, and as is clear from FIG. . The insulator 37 includes a rigid columnar leg member 38 that is screwed and fixed to the main chassis 5, which is a support member, through a screw portion formed at the lower end thereof, and a rigid columnar leg member 38 that is formed in a substantially cylindrical shape and is provided with a predetermined gap between the columnar leg member 38. It is constituted by a viscoelastic member 39 which is fitted externally at a distance and is fixed to the leg member at the lower end of the lance. The viscoelastic member 39 is connected to a circular opening 36 formed at the lower end of the leg portion 36 of the mechanical chassis 35 which is a mounting plate.
A is fitted around the outer periphery near its upper end. Further, the columnar leg member 38 is made to protrude from the upper end of the viscoelastic member 39, and the protrusion has the above-mentioned opening 36a.
A flange portion 38a is provided that sandwiches the upper end portion of the viscoelastic member with a slight gap between the upper end portion and the edge portion of the viscoelastic member.

As is clear from FIGS. 8 to 10, the mechanical chassis 35 has a substantially rectangular opening 35a extending from its center to the rear end, and within the opening is a ridge 42. is inserted. :1-Yaritsuji 7'12
is equipped with an optical pickup means (not shown) for reading information from the disk 18. On the right side of the gear ridge 42, one guide shirt 1 to /I3 extending in the front-rear direction is arranged, and is attached to the mechanical chassis 35 at both ends thereof. The right end portion of the carriage 42 is slidably fitted onto the guide shaft 43. On the other hand, as clearly shown in FIG. 11(a) and 4r, an adjustment screw 44 made of resin such as nylon is screwed into the left end of the carriage 42, and the adjustment screw 44 is screwed into the left end of the carriage 42. The tip of the section is slidably in contact with the upper surface of the mechanical chassis 35. carriage 42
are guided by guide means consisting of these guide shirts 1 to 43 and adjustment screws 44.

Here, the adjustment screw 4/4 will be explained in detail.

This adjustment screw 44 is provided not only as a part of the above-mentioned guide means for guiding the carriage 42, but also for adjusting the optical pickup means installed in the carriage ridge 42, for example, in the tangential direction. It is something that Therefore, after key F, the adjustment screw 47! It is secured with screws to prevent it from loosening. As shown in Figure 1/1 (a) 7: IiC>, the adjustment screw has a slit 44a formed on the outer periphery of the threaded portion along the axial direction of the screw. Adhesive is filled between the matching navy blue 1 screw and the slit.

The slit /14a reaches the screw head 44b and passes through the screw head in the axial direction of the screw. By making the slit 44a and passing the screw head through it, the screw head 4 can be removed after the adjustment work is completed.
-/1. It becomes possible to fill and cover the adhesive material through the opening of the sulin t-/1.4a opened on b, and the screw fixing work becomes easy. If the slit 44a does not pass through the screw head 44, the adjustment screw 44 will be screwed into the carriage 42 with adhesive (=I) applied inside the sulin l-4, 4a in advance. However, as the screws are screwed together, there is a risk that the adhesive will overflow to the outside, making the work extremely cumbersome.

Further, the outer diameter of the threaded portion of the adjustment screw/'I4 is slightly larger than the root diameter of the single-beam female thread. The outer diameter of the threaded part is set in this way and the above Surin l=
44a, the adjustment screw 44 is screwed into the curve 1 screw with a predetermined elastic force. Therefore, even if some external force is applied between the adjustment operation and the adhesive filling operation, the adjustment screw will not loosen and the adjustment state will not fluctuate. In addition, adjustment screw 4
The same effect can be obtained even if the root diameter of the threaded portion 4 is made slightly larger than the inner diameter of the yI thread.

Restore description. Figures 9, 10, and 11 (
As shown in a) and (b), the mechanical chassis 35 carrying the carriage 42 in a reciprocating manner has screw shafts 46 disposed near and parallel to the guide shaft 43 at both ends thereof. It is rotatably mounted.

A motor 47 as a driving source is provided in front of the screw shaft 46, and the screw shaft 46 is connected to the motor 47 and connected to a pulley/17a.

47b and a belt 47C.

As shown in Figures 10 and 11 (a) and Mt.
An arm member /1.9 is attached to the right end of the carriage 42 at one end thereof. A pair of half nuts 50a and 50b are integrally installed at the other ends of the four arm members, and are screwed into the screw shaft 46. It is arranged to sandwich the
Traditionally, they are spaced apart by a predetermined distance in a direction parallel to the axial center of the scriber shaft 46.

The above-mentioned four arm members and half nuts 50a and 5 as female screw members provided integrally with the arm members.
0b constitutes a conversion mechanism for converting the rotational force of the scrico shaft 46 into carriage movement force. Further, the conversion mechanism, the screw shaft 46, the motor 47, etc. constitute a driving force applying means for applying a driving force to the screw 1 notch 42.

=26-Here, - is the conversion) Iku4jl will be explained in detail.

As is particularly clear from FIG. 12, j7-to section'+A49
A pair of protrusions 49a extend in a direction d3 parallel to the axial center of the screw shaft 46 and protrude in opposite directions at the end thereof which is taken into the carriage 42.

49t+ is marked on stage 1. Protrusions 49a and 4 I]
have an I80 cross-sectional shape perpendicular to the direction of extension, and as is particularly clear from FIG.
U iM of one ta formed in a direction parallel to the heart
42a and 421], the arm member 49 is attached to the carriage/I2 (-
1-4 times. As shown in FIG. 11(a), -1-Year Ridge /12 has protrusions 49a and /1.9+1 from each U full /12a and 421).
) l! A retaining member 51 is provided to prevent it from coming off. .

As mentioned above, U! :L42a, J in fitting and tightening the protrusions 49a and 49b with an O-shaped cross section in 4211,
Thus, the arm member 49 is attached to the carriage 42 so that it can rotate about its end within a plane perpendicular to the axis of the slurry 1-shift V-shift 46. In this way, the arm part +4/l with respect to the carriage 42
The configuration in which 9 can be rotated can be thought of as both immortals and gods, but (
By connecting the J grooves 42a and /12b to the projections 49a and 49b, the structure is extremely simple.

Moreover, the distance between the pair of U grooves 42a and 42b is 1:S.
a (13th illustration) is the width dimension of the arm member 49: S
b (shown in Figure 12), thereby allowing the four arm members to move within a range of 5a-8b in a direction parallel to the axial center of the screw shaft (46). However, the carriage/1.
The protrusion 420 formed on the screw shaft 46 is elastically clamped, so that the arm member 49 does not become stiff in the direction parallel to the axial center of the screw shaft 46.

For example, as shown in FIG. 8 and FIG. -)-C is directly rotationally driven by a spindle motor 55 fixedly attached to the 9th
As is clear from the figure, the turntable 54 has a tapered guide portion 54a that fits into the center hole 18,a of the disk 18 (a<shown in the first figure) and aligns the center of the disk with the rotation center of the turntable. is formed. .

” A double turntable 54 and a spindle motor 5
5, a carriage 42, a drive mechanism that includes a screw shaft/I6 and applies a driving force to the carriage 42, a guide means consisting of 43, etc. to the guide shirt 1, and surroundings related to these. A playing means (I11) for playing a disc is constructed with the small members.

As is clear from the above, the performance means is provided on the chassis 35, which is a mounting plate, and is separated from the aforementioned disc transport mechanism and is attached to the housing 2 separately from the disc transport mechanism. It is being

As will be explained in detail later, at least during the disc performance, the above-mentioned performance and disc transport a! The mechanical connection state of the disaster is released. In addition, the mechanical chassis 3 Ei equipped with the above-mentioned performance means is connected to the main chassis 5,
Therefore, it is fixed to the housing 2. With this arrangement, almost no external vibrations are transmitted to the performance means, including the J2C1 optical pickup means, etc.
This allows for smooth performance.

Next, a description will be given of a clamping mechanism that clamps the disc 18 transported to the performance position, that is, the turntable 5/I.

Jζ shown in Fig. 2, Fig. 3 and Fig. 15, mej
A swinging member 58 is disposed on the J chassis 35 and extends in the moving direction of the tray 10, that is, the front-rear direction (arrow Y direction and the opposite direction). It is swingably attached to the mechanical chassis 35 via a support shaft 58a at the rear end (rear end). Support shaft 58a
is parallel to the rotational surface of the turntable 54, in this case extending 1 no. in the left-right direction (in the direction of arrow X and the opposite direction).

Here, the swinging member 580 position i17+ shown in FIG. The swinging member 58 swings between the clamped position and the non-clamped position.
is the coil spring 5 disposed behind the support shaft 58a.
9 in the direction E) toward the clamp position.

A disk-shaped pressing member 60 is mounted on the front end, ie, the free end, of the swinging member 58 so as to be rotatable about its axial center via a spherical bearing portion 4A60a. This pressing member 60 cooperates with the turntable 5/l to perform a disk clamping action. 1st
As is particularly clear from FIG. 5, the suppressing member 60 is held such that a portion of the suppressing member protrudes from the free end in the direction from the swinging support end of the swinging member 58 to the free end. ing. In this case, the pressing member 60 is
Approximately one-third of the diameter is projected from the free end. Also, as shown in FIG. 15, the swinging member 58 moves the suppressing member 60 in parallel directions such as the support shaft 58a.
That is, a pair of claws 58b are provided at both ends extending in the left-right direction.
held by. This allows the pressing member 60 to rotate within a predetermined range in a plane perpendicular to the support shaft 58a (indicated by arrow R in FIG. 3).

As shown in FIGS. 3 and 15, the swinging portion of the swinging member 58 is provided with a lever member 63 extending parallel to the swinging member. The lever member 63 has a shaft 63a extending in parallel with the support shaft 58a of the swinging member 58 at a position approximately one-fourth of its total length from the rear end of the lever member. This shaft 63 is attached to the engaging claw 58d formed on the shaft 58.
When a is engaged, the lever member 63 moves to the swinging member 5.
It is attached to 8. Therefore, the lever part vU63 can freely rotate once around the shaft 63a.

One end of the rotation of the lever member 63, in this case, the rear! The lHf portion is attached to the support shaft 58a.

To be more specific, as shown in FIGS. 8 to 10, there is a bracket part 6/I on the rear end of the mechanical chassis 35, which extends due to road forces and whose tip is bent forward. A lever member 63 is attached to a shaft 64a formed at the tip of the bracket portion to extend parallel to the support shaft 58a.
The rear ends of the two are pivotally engaged. More specifically, the rear end of the lever member 63 is provided with a clamping part 631) that clamps the shaft 64a of the bracket part 64 in the vertical direction.
3C is formed. On the other hand, the lever member 63
The rotation (l!!) end, that is, the front end 63d is in contact with the peripheral edge of the surface of the pressing member 60 facing the turntable 54.

By providing the lever member 63, the swinging member 5
8 is in the non-clamped position, the pressing member 60 is held parallel to the rotating surface of the turntable 54.

As shown in FIG. 3, when the swinging member 58 reaches the clamping position, it engages with an engagement protrusion 63e formed at the front end of the lever member 63. A part 58e of the regulation 33 that regulates the rotation of the lever member is set.
However, the engaging pawl 58d formed on the swinging member 58 and engaging with the shaft 63a of the lever part (O 63) has flexibility.

Further, the bracket portion 611 is formed on the lever member 63.
A clamping portion 63b that engages with the shaft 64a.

63c also has flexibility. That is, the lever member 6
The rotation center portion and rear end portion of No. 3 are elastically engaged with respect to the swinging member 58 and the bracket portion 64 (therefore, with respect to the support shaft 58a).

When the swinging member 58 reaches the clamp position, the front end 63d of the lever member 63 separates from the outer peripheral edge of the pressing member 60, but at the same time, the lever member 63 also becomes freely movable. The regulating portion 58e is provided as described above,
Furthermore, by elastically supporting the lever member 63,
The lever member is restrained with a predetermined elastic force, and resonance of the lever member due to external vibration is suppressed.

Furthermore, when attaching the lever member 63 to the swinging member 58, it is sufficient to simply insert the lever member while bending the above-mentioned engaging claw 58d. f<1 The work is so easy. Also, when connecting the lever part (the rear end of A63 and the 1Mi 64 a of brackets 1 to 6/l), the clamping parts 6311 and 630 are bent to connect the shaft 6 between them.
/1. Insert a (p to complete the connection).

As is particularly clear from FIG. 3, part of the lever (A30 is the other rotating end, i.e. , is engaged with the swinging member 58 at its upper end.Specifically, the lower surface of the swinging member 58 is provided in the tray movement direction (
A linear cam portion 58 (+ is formed along the rearward direction), and the upper end portion of the lever member 30 engages with the linear cam portion so as to be movable. 1, that is, tray 1
The moving member 2 after 0 reaches the storage position in the housing 2
The lever member 30 is rotated in the direction of the arrow Q by the backward movement of the lever 3, and the swinging member 58 is swung toward the clamp position.

Here, the lever; 10*i (part, zui) of the Wj material 30? In other words, which engagement part of the linear cam part 580 of the swinging member 58 is the roller part #J' 30 cl. In this way, , n-
By providing the rubber member 30d, the phase ηi double movement between the upper end portion of the lever member 30 and the linear cam portion 580 becomes smooth.

Further, even after the swinging member 58 reaches the above-mentioned clamp 2 position, the lever member 30 rotates by a predetermined angle in the direction of the arrow Q.
The roller part 1rA 30 d of the brim part J' 30 is a straight line 7J part 58! ]. With this configuration, the performance means (
(mentioned above) and the movable member 23, which is a part of the disc transport mechanism, are completely released during the disc playing. Therefore, external vibrations are not transmitted from the disc transport mechanism to the playing means. There is no concern about communication, and the performance is carried out smoothly.

The playing position is determined by the lever member 30, the swinging member 58, the coil spring 59, the pressing member 60, the lever member 63 provided on the swinging member 58, and the peripheral small members related thereto. , that is, a clamping machine 4 that clamps the disk 18 conveyed onto the turntable 54.
'14 is constructed.

As shown in FIG. 3, FIG. 5, and FIG. A roller member 65 is provided that engages when the formed linear cam portion 58 (corresponding to I) and the ray protrude outside the housing. It acts as a holding means to hold A' 58 in the unclamped position.

As shown in FIG. 3, a detection switch 68 is fixedly installed below the front end of the sub-relay Shiro.

This detection switch 68 is activated by engagement of a protrusion (no reference numeral) provided at a predetermined position of the moving member 23.
A signal is sent to detect the completion of storing the tray 10 in the housing 2, the completion of disk clamping, and the completion of protruding the trays 1 to 10 out of the housing. Further, as shown in FIG. 10, a part of a carriage 42 carrying an optical pickup means is engaged with the lower surface of the mechanical V-sheath 35.
A detection switch 69 is provided for detecting that the carriage has reached its movement limit position.

Incidentally, the detection signals generated from each of the detection switches 68 and 69 described above are transmitted to a control section (not shown) provided within the housing 2. In addition, the motor 26 is activated by an operation signal sent from the control section in response to each of these detection signals.
47 and the spindle motor 55 operate at predetermined timings to be described later.

Next, the operation of the front-loading disc player having the above-mentioned structure will be briefly explained in terms of performance steps, with reference to FIGS. 18 to 20.

First, as shown in FIG. 1, the disk 18 is fitted into the cylindrical recess 11a of the tray 10 protruding from the housing 2, and placed on the supporting members 19 and 20 (see FIG. 6), which are containers. place

It should be noted that the operation of projecting the disk supporting section consisting of the tray 10, supporting members 19, 20, etc. out of the housing will not be described in detail since it is performed by following the completely opposite process of the hoisting and storing operation (described below).

Once the disk 18 is placed, the slots (not shown) provided on the front panel 3 of the housing 2
Press the loading switch.

When the motor 26 starts rotating, the gear 24 rotates.
The moving member 23 is driven backward. However, as shown in FIG. 3, for example, the protrusion 12b of the slide base 12
The movable member 2
3 cannot move relative to the tray 10 including the sliding base 12, and therefore the support members 19 and 20 are locked relative to the tray 10. Therefore, the rotation of the gear 24 causes only the moving member 23 and the 1-lay 10 to move rearward. In addition, as the tray 10 moves backward, the rotatable member 33 remains engaged with the second fourth portion 23e and moves toward the subchassis 6.
It rolls on the slide portion 6c.

When the tray 10 reaches the storage position in the housing 2, the front bent portion 12c of the slide base 12, which is a component of the tray 10, comes into contact with the front end of the sub-sill Shiro, and the 16th
The state shown in the figure will be reached.

Note that FIG. 17 is a plan view of this state. As is clear from FIG. 16, at this time, the first four portions 6d.

The second fourth portion 23e and the opening (no reference numeral) of the protrusion 12b coaxially oppose each other. Since the movable member 23 is provided with a rearward driving force a3, the slide base 12
Coupled with the fact that the front bent portion 12c of the slide base comes into contact with the front end of the sub chassis 6 and the backward movement of the slide base is stopped, the rotatable member 33 leaves the second recess 23e and enters the first recess 6d. . As a result, the tray 10 including the slide base 12 is locked with respect to the sub-chassis 6, and at the same time, the locked state of the movable member 23 with respect to the tray 10, and therefore the locked state fm of the support member 19.20 with respect to the tray 10, which is a container, is released. It will be done. In this way, only the moving member 23 continues to move backward, resulting in the states shown in FIGS. 18 and 19. That is, as only the movable member 23 moves backward, the lever member 30 rotates about the bin 30a, thereby causing the supporting members 10 and 20 supporting the disk 18 to swing as shown in FIG. do. Therefore, the center hole 18a (first
) is the tapered guide portion 54 of the turntable 54.
a, and the disc 18 is placed on the turntable. Moreover, as shown in FIG. 20, at this time, the support part 19b (and 20b
) is separated from the disk 18h), and the disk 18 becomes rotatable together with the turntable 54.

On the other hand, as shown in FIG. 18, as the supporting members 19 and 20 swing downward, the swinging member engages the roller member 30d of the lever member 30 at the linear cam portion 58g. The member 58 swings downward due to the biasing force of the five coil springs, and the suppressing member 60 provided at the free end of the swinging member is pressed against the upper surface of the disk 18, thereby clamping the disk 18.

When the movable member 23 reaches the backward movement limit position, a protrusion (not shown) protruding from a predetermined position on the front end of the movable member engages with the detection switch 68, and the detection switch is operated.

The aforementioned control unit (not shown) detects that the detection switch 68 is operated and a detection signal is issued, and that the tray 10 is being driven in the storage direction, and then controls the disk holding unit including the tray. When the disk reaches the storage position in the housing 2, it is determined that the disk clamping is completed, and the motor 26 is stopped. In this state, the disc can be played.

Here, if the listener notices that the disc 18 has been inserted incorrectly and stops the storage operation of the tray 10 by hand, or due to other reasons, an abnormal load is applied that prevents the tray 10 from being stored in the housing 2. Let's explain the case.

If the storage operation of the tray 10, and hence the disk holding section, is interrupted midway through, the detection switch 68 described above will not operate forever. Although the storage operation takes approximately a certain amount of time, the control section detects that the detection switch 68 does not operate even after this certain period of time has passed since the motor 26 started rotating due to the abnormal load. It is judged that it was given. In this case, the motor 26 is reversely operated to drive the tray 10 in the projecting direction.

When the loading of the disk 18 is completed without the above-mentioned abnormal load being applied, the spindle 55 rotates, and at the same time the motor 47 rotates and the carriage 42 (for example, see FIG. 10) begins to operate, and the is started.

When the detection switch 69 detects that the carriage/'12 has reached the movement limit position after the performance has ended, the carriage 42 and turntable 5/1 are stopped, and at the same time, the motor 926 begins to reverse. Therefore, as mentioned above, the tray 10 and the support part IJ19.2
The disk supporting portion 1, including 0, protrudes out of the housing 2 by following a process completely opposite to that described above. When the tray 10 reaches the protruding position outside the housing 2, a protrusion (not shown) protruding from a predetermined position on the rear end of the moving member 23 activates the detection switch 68.
The detection switch operates by engaging with the switch. The control unit 11 (described above) separates the fact that the detection switch 68 is activated and a detection signal is issued and the fact that rays 1 to 10 are being driven in the projecting direction, and It is determined that the disk holding part including the disk has reached the protruding position outside the housing 2.
Then, the motor 26 is stopped.

The disc is thus recovered.

Effects of the Invention As described in detail above, in the loading disk player according to the present invention, the fluorocarbon 1 to the loading disk player according to the present invention are provided on the trays 1 to 10, which are movable in a first predetermined direction, and cooperate with the tray. A container for supporting a disk and moving the disk in a second predetermined direction perpendicular to the first predetermined direction is swingable in a plane including the second predetermined direction, and has a free end that supports the disk. It consists of at least a pair of support parts IJ (19, 20) that support the disk, and the free end of each support member supports the main surface of the disk (1, 2).
9b, 20b), and a tapered disk guide portion (19c) that is continuous with the support portion and is engageable with the outer periphery of the disk.
, 20C) are formed, and the swing support shaft (1
9d and 20d) are arranged in such a manner that when the free end of the support portion H swings in a direction approaching the turntable, the free end moves toward the center of rotation of the turntable.

That is, the support part (19b
, 20b), the disc is accurately positioned on the container by the disc guides (19c, 20C), and the support for placing the disc on the turntable. The disk guide portion is configured to separate outward from the outer periphery of the disk as the member swings. The tapered guide portion (571a) is provided protruding from the center of rotation of the turntable (54) and corrects the deviation of the disk in the radial direction, so that the disk does not shift in the radial direction during disk transportation. ) can be lowered. Therefore, the space inside the disc player required for moving the disc holding part including the tray and container to avoid the tapered guide part can be kept small, making it easier to downsize the disc player as a whole. It has become.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entire front loading disc player according to the present invention, and FIGS. 2 to 4 are a plan view and side view showing a part of the internal structure of the front loading disc player, including a partial cross section. Figures 5 and 6 are plan views of the tray and its peripheral members, Figure 7 is a sectional view taken along ■-■ in Figure 6, and Figures 8 to 10 are the mechanical chassis and its mounting. Plan view, side sectional view, bottom view, Fig. 11(a), <b+
, FIG. 12, FIG. 13, and FIG. 14 (ω or C) are partial detailed views of the device, and FIG. 15 is a plan view including a partial cross section of the mechanical chassis and the clamp mechanism mounted thereon. 16th
21 to 20 are diagrams for explaining the operation of the front loading disc player, and FIGS. 21 to 2
FIG. 3 is a diagram showing the main parts of a front-loading disc player that has already been proposed. Explanation of symbols for main eastern part 2...Housing 3...Front panel 3a, 1 lb, 35a, 36a --- Frontage section 5...Main chassis 6C... ...Slide part 6...Sub chassis 6a, 12a...V groove 6C...Slide part 6d...First recessed part 7... ... Pressing members 7a, 7b, 49a, 49b--Protrusion 7C
... Slit 9 ... Support 10 ... Tray 11 ... Cover member 11a ... Cylindrical four parts 12 ...・Slide base 12b...Protrusion part 12c...Front end bent part 14...Retainer 14a...First bearing part 141)...
...Second bearing part 15...Slide play 1, 16...Decorative panel 18...Disc 18a...Center hole 19.20... ...Support members 19a, 20a...Parts 19b, 20b...Support parts 19C, 20C...Tapered disk guide part 1
9d, 20d... Swing support shaft 23...
Moving member 23a...Rack part 23b...U-shaped four parts 23d...Protrusion part 23e...Second four part 24...Gear 25, 47a, 47b ---7-') 26.47
...Motor 26a...Small pulley 27...To bell 1 30...Lever member 30a, 30b...Pin 30d, 65. ...Roller member 31.59...Coil spring 33...
... Movable piece 35 ... Mechanical chassis 36 ... Leg section 37 ... Insulator 38 ... Column leg member 38a ... Flange section 39 ... Viscoelastic member 42 ... Carriage 42a, 42b ... U groove 42c ... Protrusion / I3 ... Guide shaft 44 ... ... Adjustment screw 44a ... Slit 44b ... Screw head 46 ... Screw shaft 49 ... Arm member 49c ... Tongue-shaped Parts 50a, 50b...Half nut 51...
... Removal prevention member 54 ... Turntable 54a ... Tapered guide portion 55 ... Spindle motor 58 ... Swing member 58, a. ...Support shaft 58b...Claw 58d...Engagement claw 58e...Restriction part 58g...Linear cam part 60...・・Press part 60a ・・・Spherical bearing member 63 ・・・・・
・Lever members 63a, 64a...Shaft 631), 63C...Holding portion 63d...Front end 630...Engaging protrusion

Claims (2)

[Claims] (1) A housing, a playing means provided in the housing including a turntable, supporting a disc to be played, and moving the disc in a first predetermined direction and a second predetermined direction perpendicular thereto; a disc transport mechanism for transporting onto a turntable; the disc transport mechanism includes a support member; a tray provided on the support member so as to be movable in the first predetermined direction; and a container that can protrude to the outside of the housing and cooperates with the tray to carry the disk and move the disk in the second predetermined direction, and the container moves in the second predetermined direction. At least a pair of support members are provided to be swingable in a plane containing the disk and support the disk at a free end, and a support member that supports the main surface of the disk and a support member that supports the main surface of the disk at the free end of the support member; a tapered disk guide portion that is continuous with the portion and is engageable with the outer periphery of the disk, and when the free end portion swings in a direction approaching the turntable, the free end portion prevents rotation of the turntable. A front loading disc player characterized in that the swing support shaft of the support member is arranged so as to move toward the center. (2) The front-loading disc player according to claim 1, wherein the support portion is configured to support an outer peripheral end of the main surface of the disc.