JP2002288912A - Disk player - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize quality and to reduce costs by simplifying a mechanism and reducing the number of part items in a disk player having a fixing mechanism for switching the elastic support/fixed support of a disk playing part. SOLUTION: The fixing mechanism is provided with lock sliders 3 and 4 attached to the disk playing part so as to be moved in a disk inserting direction, position restricting parts 1a-a, 1b-1, 1c-1 and 1d-1 having end surfaces to be abutted on the main surfaces of the lock sliders 3 and 4, and position restricting pins 1a-2, 1b-2, 1c-2 and 1d-2 provided on the end surfaces so as to project. On the main surfaces of the lock sliders 3 and 4, position restricting grooves 3a, 3b, 4c and 4d are formed by cutting in a direction opposite the disk inserting direction. The position restricting pins are engaged with the position restricting grooves to abut on the tail end walls of the position restricting grooves in the direction opposite to disk inserting direction, and thus the disk playing part is fixed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disc player, and more particularly to a fixing means for fixing and supporting a disc playing section.

[0002]

2. Description of the Related Art In recent years, a disk player that scans and reproduces a high-density signal recorded on a disk by an optical pickup has become widespread. When the disc player is mounted on a movable object such as an automobile and used, sound skipping is likely to occur due to the vibration of the movable object. Therefore, conventionally, a playing section including a pickup and a turntable is elastically supported on a base such as a fixed chassis via a damper or the like. Such a product is disclosed in, for example, Jpn.
No. 6,086,045. However, in the above configuration, when the disc is inserted into or ejected from the playing device, the playing section fluctuates within the movable range of the damper.・
There is a problem with the discharging operation. Therefore, conventionally, as shown in FIG. 5, for example, when playing a disc, the disc playing section is elastically supported for the purpose of reducing the transmission of external vibrations, and for inserting and ejecting the disc, the disc insertion and ejection positions are stabilized. A mechanism (mechanical lock mechanism) that switches the support state of the disc playing section so that the disc playing section is fixedly supported
Is adopted.

FIG. 5 is an exploded perspective view showing a conventional disk player 10 having a mechanical lock mechanism, and FIG. 6 is a schematic partial side view for explaining a fixed support released state (elastic support state). a1) and a schematic partial top view (a2), and a schematic partial side view (b1) and a schematic partial top view (b2) for explaining a fixed support state. The three orthogonal axes XYZ are shown in the figure.

As shown in FIG. 5, a conventional disk player 10 includes a disk playing section 12 and lock sliders 13 on both right and left sides of the disk playing section 12.
And two lock arms 14 and 15 and two lock pins 16 and 17 fixed to an outer case (not shown). The outer case is the base on which the disc playing section is installed. The disk playing section 12 is elastically supported by a damper and a suspension spring (not shown) so as to be movable within a predetermined range in the X, Y, and Z directions. Two cam grooves 12a, 1
2b and two slide guide grooves 12c and 12d are provided. The lock slider 13 has two pins 13
a, 13b and two lock arm support holes 13c, 13
and two locking portions 13e and 13f for locking to the lock pins 16 and 17 are formed in a triangular notch shape. Each of the lock arms 14 and 15 is provided with pins 14a and 15a and rotation shafts 14b and 15b at symmetrical positions. In addition, the lock arms 14 and 15
Are formed in a substantially L-shape, and the inner corners of the L-shape are locking portions 14c, 15c for locking to the lock pins 16, 17. The locking portions 13e and 13f of the lock slider 13 and the locking portions 14c and 15c of the lock arms 14 and 15 are respectively combined to form a holding portion for holding the lock pin.

The lock slider 13 is attached to the side surface of the disk playing section by fitting pins 13a and 13b into slide guide grooves 12c and 12d, respectively, so as to be movable within a predetermined range in the Y direction. Each of the lock arms 14 and 15 is attached by rotatably fitting the rotation shafts 14b and 15b to the lock arm support holes 13c and 13d. The pins 14a and 15a are respectively connected to the cam grooves 12a and
12b.

When the lock slider 13 reciprocates linearly in the Y-axis direction, the lock arms 14, 15 are guided by the cam grooves 12a, 12b to reciprocate around the rotation shafts 15b, 14b.

In order to set the lock slider 13 in the state shown in FIGS. 6 (a1) and 6 (a2), that is, in the fixed support release state (elastic support state), the lock slider 13 is positioned at the limit in the positive direction of the Y axis within its movable range. Let it. By doing so, the lock arms 14 and 15 are located at the clockwise limit within the movable range as shown in FIG. 6 (a1), and the holding portions are opened, and the lock slider 13 and the lock arms 14 and 15 are moved. , Are separated from the lock pins 16 and 17. In this state, the disk playing section 12 is not restrained by the lock pins, and maintains a state in which it is elastically supported by a damper (not shown) so as to be movable within a predetermined range in the X, Y, and Z directions.

To achieve the state shown in FIGS. 6 (b1) and 6 (b2), that is, the fixed support state, the lock slider 13 is positioned at the limit in the negative direction of the Y axis within its movable range. By doing so, the lock arms 14 and 15 are
As shown in (b1), the holding portion is closed at the limit in the counterclockwise direction within the movable range, and the locking portions 13e and 13f of the lock slider 13 and the locking portions 1 of the lock arms 14 and 15 are locked.
4c and 15c sandwich the lock pins 16 and 17 therebetween. In this state, the disk playing section 12 is restrained by the lock pin and fixedly supported by an outer case (not shown) as a base. In other words, the disc playing section 12 is fixed in six directions: up and down (Z direction), left and right (X direction), and front and rear (Y direction).

At least when playing a disc, FIG.
1) By setting the state shown in (a2), that is, the fixed support release state (elastic support state), the transmission of vibration from the outside to the disk playing section 12 can be reduced, and a good playing environment can be secured. . In addition, at least at the time of insertion and ejection of the disc, the state shown in FIGS. 6 (b1) and 6 (b2), that is, the fixed support state, enables the disc playing section to be reliably arranged at the disc insertion / ejection position. it can.

As described above, when the disk playing section is fixedly supported, a mechanism for fixing the disk playing section in six directions of the vertical direction (Z direction), the left and right direction (X direction), and the front and rear direction (Y direction). Another embodiment of the disc player to be adopted is also disclosed in Japanese Patent Application Laid-Open No. 5-2812 (Japanese Patent No. 2877562).

[0011]

However, in the above-mentioned conventional disc player, when the disc playing section is fixed and supported, the disc playing section is moved vertically (Z direction), left and right direction (X direction), and forward and backward. Since a mechanism for fixing in six directions (Y-directions) (orthogonal three-axis directions) is employed, the mechanism is complicated, the number of parts is increased, and there is a problem in that it is disadvantageous in terms of quality stability and cost reduction. .

The present invention has been made in view of the above-mentioned problems in the prior art, and has a structure in which a disk playing section is elastically supported when playing a disk, and the disk playing section is placed at a predetermined disk insertion / ejection position when a disk is inserted / ejected. For a disk player having a fixing mechanism (mechanical lock mechanism) for switching the support state of the disk playing section so as to fix and support the disk player, the mechanical lock mechanism is simplified, the number of parts is reduced, and quality stability and cost reduction are achieved. As an issue.

[0013]

Means for Solving the Problems In order to solve the above problems, the invention described in claim 1 is, for example, as shown in FIG.
A base 1, a disk playing section 2 including a turntable 9 and a pickup, and elastic support sections 1e, 1f, 1 for attaching the disk playing section 2 to the base via elastic members.
g, 1h, and a fixing mechanism. The fixing mechanism vertically intersects the disc playing section 2 with respect to the base in a disc inserting direction (positive direction of the Y axis) and a disc inserting direction. A fixed state in which it is immovable in each of two axes (X-axis and Z-axis) and movably in a direction opposite to the disc insertion direction (negative direction of the Y-axis); A disc player characterized in that the disc player is configured to be switchable between a fixing release state in which fixing in all directions with respect to the base 1 is released.

Therefore, according to the first aspect of the present invention,
At least at the time of playing the disc, the disc playing section is released so as to be movable in three orthogonal directions by playing the disc, and the elastic member absorbs an impact, thereby reducing the transmission of vibration from the outside to the disc playing section. It is possible to ensure a good performance environment. By setting the above-mentioned fixed state at least when a disc is inserted and when a disc is ejected, the following is achieved. In other words, the force acting on the disc playing section when the disc is inserted or ejected is exclusively in the disc insertion direction, but since the disc playing section is fixed immovably in the disc inserting direction, the disc playing section may move in the front-back direction. There is very little, and even if it moves, it is elastically supported, so it does not move so much as to cause rattling. Since the disc playing section is fixed so as not to be movable in two orthogonal axes perpendicular to the disc inserting direction, if the fixing position is previously set to the inserting / ejecting position of the disc, the disc playing section can be used during use. It can be reliably arranged at the insertion / ejection position. That is, the disc playing portion does not come off from the disc insertion / ejection position, and no troubles such as disc insertion mistake, ejection mistake, and deterioration of the feeling of insertion do not occur.

Further, in the fixed state, the disc playing section can be moved in the direction opposite to the disc insertion direction.
The number of directions that need to be fixed has been reduced from the conventional three-axis orthogonal directions, that is, the six directions of the vertical direction (Z direction), the left-right direction (X direction), and the front-rear direction (Y direction), to five directions. This makes it easier to simplify the mechanism and reduce the number of parts.
As a result, quality stability and cost reduction can be easily achieved.

According to a second aspect of the present invention, there is provided the disk player according to the first aspect, for example, as shown in FIG.
The fixing mechanism is provided in the direction of two axes (X axis, Z axis) perpendicular to each other and perpendicular to the disc insertion direction.
Regulating walls 3e, 3a-3,
3a-4, and the position regulating walls 3e, 3a- in a direction (Y-axis direction) perpendicular to the two axes (X-axis, Z-axis).
The effective lengths C1, C2 of 3, 3a-4 are longer than the movable length B of the disc playing section (see FIG. 1A).

The movable range of the disc playing section is limited by being elastically supported by an elastic supporting section such as a damper, or by interfering with a front portion of a base such as an outer case. According to the invention described in claim 2, the fixing mechanism has a position regulating wall that regulates the position of the disc playing portion immovably in two directions perpendicular to each other and perpendicular to the disc insertion direction, In the vertical direction, the effective length of the position regulating wall is longer than the movable length of the disc playing section, so that even if the disc playing section moves in the direction opposite to the disc inserting direction, it is perpendicular to the disc inserting direction and orthogonal to each other. The fixed state according to claim 1 can be maintained without releasing the position regulation in the direction of the axis. Further, since there is no need for a position restricting wall for restricting the position of the disk playing portion so that it cannot move in the direction opposite to the disk insertion direction, the mechanism can be simplified and the number of parts can be reduced. As a result, quality stability and cost reduction are achieved.

According to a third aspect of the present invention, in the disk player according to the first or second aspect, for example, as shown in FIG.
Lock sliders 3 and 4 movably attached to the disk playing section 2;
When the slider 4 is located at the limit of the disk insertion direction within its movable range, the position restricting portions 1a-1, 1b-1, and 1c- having the end surfaces abutting on the main surfaces of the lock sliders 3 and 4, respectively.
1, 1d-1 and position regulating pins 1a-2, 1b-2, 1c-2, 1d-2 projecting from the end face are provided on opposite sides of the disc playing section 2, respectively. The main surfaces of the lock sliders 3 and 4 are formed with position control grooves 3a, 3b, 4c and 4d cut in a direction opposite to the disk insertion direction (negative direction of the Y-axis).
a-1, 1b-1, 1c-1, 1d-1 are fixed to the base 1, and the position regulating pins 1a-2, 1b-
2, 1c-2, 1d-2 are the lock sliders 3, 4
Is located at the limit of the disc insertion direction within the movable range, the end walls of the position regulation grooves (for example, 3a-) are fitted in the position regulating grooves 3a, 3b, 4c, and 4d and are opposite to the direction of the disc insertion. 2: see FIG. 1).

Therefore, according to the third aspect of the present invention, when the lock slider is located at the limit of the disk insertion direction within its movable range, the lock slider is provided with the position restricting portion having the end face abutting on the main surface of the lock slider. The movement of the disc playing section in a direction perpendicular to the end face, that is, in the left-right direction (X direction) is restricted. Further, when the lock slider is positioned at the limit of the disk insertion direction within its movable range, the position restricting pin is fitted into the position restricting groove, so that the movement of the disk playing section in the vertical direction (Z direction) is restricted. Be regulated. Further, when the lock slider is located at the limit of the disk insertion direction within its movable range, the position regulating pin comes into contact with the terminal wall of the position regulating groove, so that the rearward direction (positive direction of X axis = disk insertion) Direction) is restricted. With the above-described position regulating means, the fixed state according to the first aspect is obtained. In other words, with a small number of parts, a lock slider with a position regulating groove cut out and a position regulating section with a position regulating pin protruding,
With a simple mechanism, you can insert the disc
It can be securely arranged at the discharge position and can be sufficiently fixed in the front-rear direction. Therefore, the mechanism is simplified, the number of parts is reduced, and as a result, quality stability and cost reduction are achieved.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The following is one embodiment of the present invention and does not limit the present invention.

FIG. 1 is a plan view (a) and a right side view (b) of a fixed state of a disc player according to an embodiment of the present invention.
1) and a left side view (c1), and a right side view (b2) and a left side view (c2) in an unlocked state. The three orthogonal axes XYZ are shown in the figure. The Z axis is an axis extending in the direction from the back of the paper to the front. The disc insertion direction is the positive direction of the Y axis, the X axis direction is the left and right direction, the Y axis direction is the front and rear direction, and the Z axis direction is the up and down direction.

As shown in FIG. 1, the disc player according to the present embodiment comprises an outer case 1 as a base, a disc playing section 2 including a turntable 9 and a pickup (not shown), and a disc playing section 2 having elasticity. As an elastic supporting portion to be attached to the outer case 1 via members, four dampers 1e, 1f, 1g, 1h, four suspension springs 1i, 1j, 1k, 11 and a fixing mechanism are provided.

The fixing mechanism mainly includes a lock slider R3,
The lock slider L4 and the four position restricting throttle portions 1a-
1, 1b-1, 1c-1, 1d-1 and four position regulating pins 1a-2, 1b-2, 1c-2, 1d-2. The lock slider R3 is attached to the right side of the disk playing section 2 so as to be movable in the disk insertion direction (Y-axis direction). Similarly, the lock slider L4 is attached to the left side surface of the disk playing section 2 so as to be movable in the disk insertion direction (Y-axis direction).

As shown in FIG. 1 (b1), the surface (outer surface) of the lock slider R3 facing the inner right surface of the outer case 1 has a direction opposite to the disk insertion direction (negative direction of the Y axis). Are formed into two position regulating grooves 3a and 3b. Similarly, as shown in FIG. 1 (c1), the surface (outer surface) of the lock slider L4 facing the left inner side surface of the outer case 1 has a direction opposite to the disk insertion direction (Y
Two position regulating grooves 4c cut in the negative direction of the shaft).
4d is formed.

The position restricting apertures 1a-1, 1b-1, 1c
-1 and 1d-1 are formed so as to have a tapered periphery and protrude. In addition, the position restricting throttle portions 1a-1, 1b-
1, 1c-1 and 1d-1 are formed so as to narrow the width in the outer case 1 by opposing throttle portions, and are fixed to the left and right inner side surfaces of the outer case 1. Further, a flat end surface is formed at the center surrounded by the tapered portions of the position restricting narrow portions 1a-1, 1b-1, 1c-1, and 1d-1, and a position restricting pin 1a-2 is formed at the center of the end surface. , 1
b-2, 1c-2, and 1d-2 are protruded, respectively.

FIG. 2 is a schematic diagram showing a fitting state of the position regulating pins 1a-2 and the position regulating grooves 3a as a representative. The position regulating groove 3a has an open end 3a-1 in the positive direction of the Y axis,
It has a terminal wall 3a-2 in the negative direction of the Y axis. The width of the opening end increases in the Z-axis direction as it increases in the positive direction of the Y-axis. A groove 3a-5 having a constant width is formed from the open end 3a-1 to the terminal wall 3a-2. Position regulating groove 3b,
4c and 4d are also formed in the same manner as the position regulating groove 3a.
In the fixed state, the position restricting throttle portions 1a-1, 1b-
The end surfaces of the lock sliders 1 and 1c-1 and 1d-1 are in contact with the position restricting walls of the lock sliders 3 and 4 in the X-axis direction (3e in FIG. 2 for the throttle 1a-1). As a result, the disk playing section 2 cannot be moved in the X-axis direction. The position regulating pins 1a-2, 1b-2, 1c-2, and 1d-2 are fitted in the position regulating grooves 3a, 3b, 4c, and 4d, respectively, and the position regulating wall in the Z-axis direction (for the pin 1a-2). Is 3 in FIG.
a-3, 3a-4). As a result, the disk playing section 2 is immovable in the Z-axis direction. Further, the position regulating pins 1a-2, 1b-2, 1c-2, 1d-2 are end walls of the position regulating grooves 3a, 3b, 4c, 4d, respectively (the pin 1a-2 is 3a-2 in FIG. 2). Abut. As a result, the disk playing section 2 cannot be moved in the positive direction of the Y axis (the direction of disk insertion).

As described above, in the fixed state, the disc playing section 2 can move only in the negative direction of the Y axis (= forward direction = discharge direction). In normal operation, no external force in the negative direction of the Y-axis is applied to the disc playing section 2,
When such an external force is applied by vibration or the like, the disc playing section 2 moves in the negative direction of the Y axis, that is, moves forward. However, as shown in FIG. 1A, the disc does not move beyond the gap B between the front end of the disc playing section 2 and the outer case 1. Therefore, in the present embodiment, as shown in FIG.
Effective length C1 and Z of the position regulating wall (3e) in the X-axis direction
The effective length C2 of the axial position regulating walls (3a-3, 3a-4) is longer than the dimension B which is the movable length of the disc playing section 2. As a result, even if the disc playing section 2 moves forward, the position regulation in the X and Z-axis directions is not released, and the disc playing section 2 is kept in a correct position with respect to the disc insertion slot 5.

To release the fixed state as described above, as shown in FIGS.
4 is moved in the negative direction of the Y axis with respect to the disk playing section 2, and the position restricting diaphragm sections 1a-1, 1b-1, 1c-1, 1 are moved.
d-1 and position regulating pins 1a-2, 1b-2, 1c-
2, 1d-2. As a result, the fixing of the disc playing section 2 to the outer case 1 in all directions is released, and the disc playing section 2 becomes a floating state elastically supported.

Next, an embodiment of a mechanism for realizing the sliding operation of the lock sliders 3 and 4 along a series of operations of the disk player will be described. The sliding operation of the lock sliders 3 and 4 described above is performed by a motor, a gear, a rack,
Although it can be realized by existing means combining a cam or the like, the following form may be used.

Basically, the sliding operation of the lock slider R3 in the negative direction of the Y axis is performed by the trigger arm 21 shown in FIGS. The sliding operation of the lock slider R3 in the positive direction of the Y axis is performed by the carrier gear 2 shown in FIG.
Perform by 2. The lock slider L4 is linked to the lock slider R3 via the roller lever 8, and the sliding operation is performed in conjunction with the sliding operation of the lock slider R3.

As shown in FIGS. 1 and 3, the trigger arm 21 is mounted on the clamper arm 7 so as to be rotatable about the Z-axis on a shaft 21d, and has three projections 21 at its ends.
a, 21b and 21c. The projection 21a receives an 8 cm disk. The protrusion 21b receives a 12 cm disk. The convex portion 21c contacts the trigger slider 25 and slides the trigger slider 25 forward (in the negative direction of the Y axis). The trigger slider 25 is supported so as to be slidable in the front-rear direction with respect to the lock slider R3. As shown in FIG. 4, the trigger slider 25 and the lock slider R3 are connected via a spring 26. Therefore, the lock slider R3 and the trigger slider 25 follow each other's movement.

As shown in FIG. 4, the carrier gear 22 has a row of teeth on a part of the outer periphery, and has an arm part 22a on another part of the outer periphery.
Extend radially outward, and mount the planetary gear 22b at an eccentric position. The carrier gear 22 is rotatably mounted on the same shaft as a small-diameter drive gear 24 driven by a motor (not shown).
Is engaged. The planetary gear 22b is the carrier gear 22
Revolves with the rotation of. Further, the planetary gear 22b meshes with the internal teeth row 23 fixed to the disk playing section 2 at its revolving position. As shown in FIG. 4, the internal teeth row 23 is composed of a plurality of teeth formed on the chassis member of the disk playing section 2 and is a row of internal teeth that are arcuately inwardly continuous with a length of about seven-twelfths of a circumference. is there.

First, the operation of inserting a disc will be described. It is assumed that the disk playing section 2 is in a fixed state as shown in FIGS. At this time, the lock sliders 3 and 4 are located at the limits of the disk insertion direction (positive direction of the Y axis) within the movable range. FIG. 4 shows the state shown in FIG. 4A, in which the planetary gears 22 b are separated from the internal gear train 23. When the 12 cm disk 6 is inserted, the detecting means (not shown) detects this, and instructs a motor (not shown) to rotate the disk transport roller 8c in a direction to pull in the disk 6. The 12 cm disk 6 is transported to a predetermined position on the turntable 9 and pushes the projection 21b of the trigger arm 21 as shown in FIG. In the case of the 8 cm disc 6a, the protrusion 21a is pushed as shown in FIG. 3 (b1). As shown in FIG. 3, the trigger arm 21 rotates, and the trigger 21
Press 5 forward. With the movement of the trigger slider 25, the lock slider R3 moves forward and moves from the position regulating grooves 3a, 3b of the lock slider 3 to the position regulating pins 1a-2,
1b-2 comes off. The lock slider R3 moves as described above, and the state shown in FIGS. 1 (b2) and (c2) is obtained. Since the lock slider R3 moves forward, the following operations are simultaneously performed.

As shown in FIG. 3, a cam hole 3c is provided in the lock slider R3, and a pin 7a attached to the clamper arm 7 is inserted. The clamper arm 7 is rotatably attached to the disk playing section 2 via a shaft 7b. Therefore, when the lock slider R3 moves forward, the clamper arm 7 closes and the disk 6 is clamped on the turntable 9.

As shown in FIG. 3, the lock slider R
3, a cam hole 3d is provided, and a pin 8a attached to the roller lever 8 is inserted. The roller lever 8 is rotatably attached to the disc playing section 2 via a shaft 8b. A cam hole 4a is provided in the lock slider L4, and a pin 8d attached to the roller lever 8 is inserted. Therefore, when the lock slider R3 moves forward, the roller lever 8 rotates, the disk transport roller 8c separates from the disk 6, and the lock slider L4 moves forward, so that the position regulating grooves 4c, 4d of the lock slider L4. From the position regulating pins 1c-2, 1d
-2 comes off.

As described above, the lock sliders 3 and 4 are provided with the position restricting throttle portions 1a-1, 1b-1, 1c-1 and 1d-1 and the position restricting pins 1a-2, 1b-2, 1c-2 and 1d-.
2, the fixing of the disc playing section 2 to the outer case 1 is released, and the disc playing section 2 is elastically supported and can be played.

Next, the operation of ejecting a disc will be described. As shown in FIGS. 1 (b2) and 1 (c2), it is assumed that the disk playing section 2 is in the fixed state released state (elastic support state).
At this time, the lock sliders 3 and 4 are located at the limits of the disk ejection direction (negative direction of the Y axis) within the movable range. At this time, the planetary gears 22b mesh with the internal teeth row 23.

When a disc ejection signal is input by the user operating the operation panel or the like, a motor (not shown) rotates the drive gear 24 counterclockwise in FIG. Then, the carrier gear 22 becomes the planetary gear 22
b and rotates clockwise. Then, the arm portion 22a becomes the convex portion 2 provided on the lock slider R3.
7, and the lock slider R3 slides backward (FIGS. 4D to 4C). As a result, the position regulating pins 1a-2, 1 are inserted into the position regulating grooves 3a, 3b of the lock slider 3.
b-2 is fitted.

At the same time, the above-described interlocking operation of the clamper arm 7, the roller lever 8, and the lock slider L4 is performed in reverse, and the above-described fixed state is obtained.

[0040]

According to the component holding mechanism of the first aspect,
In the fixed state, the disc playing section can be moved in the direction opposite to the disc insertion direction. From six directions in the front-rear direction (Y direction) to five directions, so that it is easy to simplify the mechanism and reduce the number of parts, and as a result, it is easy to achieve quality stability and cost reduction. . On the other hand, since the disc playing portion is fixed immovably in each of two axes perpendicular to the disc insertion direction and orthogonal to each other, the disc playing portion does not come off from the disc insertion / ejection position, and the disc insertion mistake, ejection mistake, Problems such as deterioration do not occur.

According to the second aspect of the present invention, even when the disk playing section moves in the direction opposite to the disk insertion direction, the position regulation in the directions of two axes perpendicular to each other and perpendicular to the disk insertion direction can be released. The fixed state according to claim 1 can be maintained without disc insertion mistake, ejection mistake,
Problems such as deterioration of the insertion feeling do not occur. In addition, since there is no need for a position regulating wall that regulates the position of the disc playing portion so that it cannot move in the direction opposite to the disc insertion direction, the mechanism can be simplified and the number of parts can be reduced.
There is an effect that quality stability and cost reduction can be achieved.

According to the third aspect of the present invention, the disk is formed by a simple mechanism with a small number of parts, such as a lock slider having a position regulating groove cut therein and a position restricting throttle portion having a position regulating pin projecting therefrom. There is an effect that the playing section can be reliably arranged at the insertion / ejection position of the disc and can be sufficiently fixed also in the front-back direction. Therefore, the mechanism is simplified, the number of parts is reduced, and as a result, there is an effect that quality stability and cost reduction are achieved.

[Brief description of the drawings]

FIG. 1 is a plan view (a), a right side view (b1) and a left side view (c1) of a disk player according to an embodiment of the present invention in a fixed state, and a right side view (b2) and It is a left side view (c2).

FIG. 2 is a schematic diagram (a plan view (a) and a side view (b)) showing a fitted state of a position regulating pin 1a-2 and a position regulating groove 3a according to an embodiment of the present invention.

FIG. 3 is a plan view (a1) and a partially cut-away side view (a2) illustrating the operation of the mechanism when a 12 cm disk is inserted, and the operation of the mechanism when an 8 cm disk is inserted, according to an embodiment of the present invention. FIG. 2 is a plan view (b1) and a partially cut-away side view (b2) for explaining the first embodiment.

FIG. 4 is a partial plan view of the disk player for describing a sliding operation of the lock slider R in one embodiment of the present invention.

FIG. 5 is an exploded perspective view showing a conventional disc player 10 having a mechanical lock mechanism.

FIG. 6 shows an example of a conventional disc player 10;
A schematic partial side view (a1) and a schematic partial top view (a) for explaining a fixed support release state (elastic support state).
2) and a schematic partial side view (b1) and a schematic partial top view (b2) for explaining a fixed support state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outer case 1a-1, 1b-1, 1c-1, 1d-1 ... Position restricting throttle part 1a-2, 1b-2, 1c-2, 1d-2 ... Position restricting pin 1e, 1f, 1g, 1h ... Dampers 1i, 1j, 1k, 1l ... Suspension springs 2 ... Disc playing parts 3 ... Lock sliders R 3a, 3b ... Position control grooves 3c, 3d ... Cam holes 4 ... Lock slider L 4a ... Cam holes 4c, 4d ... Position controls Groove 5 Disc insertion slot 6 Disc 7 Clamper arm 7a Pin 7b Shaft 8 Roller lever 8a Pin 8b Shaft 8c Disc transport roller 9 Turntable 10 Conventional disc player 12 Disc performance Part 13: Lock slider 14, 15: Lock arm 16, 17: Lock pin 21: Trigger arm 22: Carrier gear 23: Internal tooth row 4 ... driving gear 25 ... trigger slider 26 ... spring 27 ... protrusion

Claims (3)

[Claims] A disc playing section including a turntable and a pickup; an elastic support section for attaching the disc playing section to the base via an elastic member; and a fixing mechanism. The disk playing section is fixed to the base so as to be immovable in the disk insertion direction and in each of two axes perpendicular to the disk insertion direction and perpendicular to each other, but movable in the direction opposite to the disk insertion direction. A disc player configured to be switchable between a state and a fixed release state in which the disc playing section is released from being fixed to the base in all directions. 2. The fixing mechanism has a position restricting wall for restricting the position of the disk playing portion immovably in two axial directions perpendicular to each other and perpendicular to the disk inserting direction, and in a direction perpendicular to the two axes. 2. The disc player according to claim 1, wherein an effective length of the position regulating wall is longer than a movable length of the disc playing section. 3. The lock mechanism according to claim 1, wherein the lock mechanism is movably mounted in the disk insertion direction on the disk playing section, and the lock slider is located at a limit of the disk insertion direction within its movable range. A position restricting portion having an end surface abutting on the main surface of the lock slider, and a position restricting pin projecting from the end surface are provided on both opposing side surfaces of the disk playing portion, respectively, and are provided on the main surface of the lock slider. Is formed with a position restricting groove cut in a direction opposite to the disk insertion direction, the position restricting portion is fixed to the base, and the position restricting pin is used to insert the disk within a movable range of the lock slider. When it is located at the limit of the direction, it fits into the position regulating groove and abuts on the end wall of the position regulating groove in the direction opposite to the disk insertion direction. The disc player according to claim 1.