JP2007207308A - Disk playback device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a disk playback device in which miniaturization and thinning of the disk playback device is possible, and which can surely perform movement control of a playback deck in vertical, right and left, and back and forth directions. <P>SOLUTION: The disk playback device comprises: a playback deck supported in a floating state inside a case; a rotation member which is pushed to be moved by a disk inserted in the inside of the case; a slide member to be driven based on rotation of the rotation member; a lock member formed with a flat plate prepared in the case so as to be pushed and moved based on driving of the slide member; and a locked section prepared in the playback deck orthogonal to a movement direction of the lock member. The lock member has an engaged convex-part of which base is laterally parallel and which is formed in tapered slope on a board thickness edge face facing the locked section, and the locked section comprises an engaging hole which is formed in nearly equal width to the thickness of the board of the lock member in both lateral ends and in circular so as to expand the width in the center section. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a disk reproducing apparatus, and more particularly to an in-vehicle disk reproducing apparatus.

Mainly in-vehicle disc playback devices are equipped with a turntable, pickup, clamper, etc. on a playback deck that is supported in a movable (floating) state in the upper, lower, left, and right directions in the housing. It is configured not to be affected by vibration.
At the time of non-reproduction, the disc is easily inserted and ejected by locking (engaging) the reproduction deck with the casing.
As for the lock of the playback deck in the conventional disk playback device, there are ones in which U-shaped locking members are engaged with each other at right angles, conical shapes, and triangular shapes (for example, see Patent Document 1). is there.

JP 2003-59154 A

Since the shape of the lock member of the conventional disk reproducing device is configured as described above, for example, a U-shaped shape requires a large amount of movement for locking, and the disk reproducing device can be downsized. There is no problem. Further, since they are arranged orthogonal to each other, there is a problem in that the height dimension cannot be reduced and the thickness cannot be reduced.
Further, when the lock member has a conical shape, the amount of movement required for locking can be reduced, but the height dimension cannot be reduced, and the movement in the rotational direction cannot be restricted. is there.
Further, when the lock member has a triangular shape, there is a case where the lock member may be locked smoothly, and there is a problem that the movement control of the playback deck cannot be reliably performed.

  The present invention has been made in order to solve the above-described problems, and allows a disk reproducing apparatus to be reduced in size and thickness, and further capable of reliably restricting movement of the reproduction deck in the vertical and horizontal directions. An object is to obtain a playback device.

  The disc reproducing apparatus according to the present invention is based on a reproducing deck supported in a floating state inside a casing, a rotating member that is pushed by a disk inserted inside the casing, and the rotation of the rotating member. And a slide member driven by the slide member, a lock member formed by a flat plate provided on the housing so as to be pushed and moved based on the drive of the slide member, and a direction perpendicular to a moving direction of the lock member to the reproduction deck A locking portion provided on the opposite surface of the locking member and the locked portion, one is an engaging convex portion formed in a tapered slope from the middle with the base parallel to the left and right, and the other is the left and right end portions However, the center portion is provided with an engagement hole formed in an arc shape so as to widen the width so as to be substantially equal to the plate thickness of the engagement protrusion.

According to the present invention, since the engaging convex portion is formed to have the same thickness as the plate thickness, the dimension in the height direction can be reduced, which is effective in reducing the thickness of the disk reproducing apparatus.
Further, on the opposing surface of the locking member and the locked part, one is an engaging convex part formed on a sloped surface with a base parallel to the left and right, and the other is substantially the same as the thickness of the engaging convex part at the left and right ends. Since the center part is provided with an engagement hole formed in an arc shape so as to widen the width to the same width, the distance from the unlocked position to the locked position can be shortened, and the disc can be reproduced. It is effective in reducing the size of the device.
Furthermore, since the engaging convex portion and the locked portion abut against each other at the time of locking, the movement of the playback deck can be surely restricted in order to restrict the movement up, down, left, and right of the surface.

Hereinafter, in order to describe the present invention in more detail, the best mode for carrying out the present invention will be described with reference to the accompanying drawings.
Embodiment 1 FIG.
FIG. 1 is a perspective view of a disk reproducing apparatus according to Embodiment 1 of the present invention, and an insertion port (not shown) for inserting and ejecting a disk 13 is provided on a front surface 12a of a housing 12 having a frame configuration. Is provided.
Further, the playback deck 6 is attached in a state (floating state) that can move in the vertical, horizontal, and longitudinal directions inside the disc playback apparatus.
Here, the up and down direction is the up and down direction with respect to the disk surface of the disk 13 inserted into the insertion slot, the left and right direction is the longitudinal direction of the transport roller 1 described later, and the front and back direction is the direction in which the disk 13 is transported. The front surface 12a of the body 12 is the front.

The transport roller 1 is rotatably mounted in the housing 12 to transport the disk 13 to the turntable 7 or to eject the disk 13 from the turntable 7.
Further, the conveying roller 1 is biased upward by an elastic body such as a spring. As a result, the transport roller 1 comes into contact with the back surface of the disk 13 and can reliably transport the disk 13.

The rotating member 2 is rotatably attached to the clamp member 4, and as shown in FIG. 2, when the disk 13 is conveyed onto the turntable 7, one end of the rotating member 2 is pushed against the disk 13. When viewed from the upper side of the disk playback device, it rotates in a counterclockwise direction.
During this rotational movement, the other end of the rotational member 2 comes into contact with the slide member 3 to push out (drive) the slide member 3 forward.

The slide member 3 is provided with a rack 3a that engages with a gear of the gear train 11 and a protrusion 3c for pushing down the transport roller 1.
The clamp member 4 is configured such that the slide member 3 moves downward as the slide member 3 moves forward, and the front end portion of the clamp member 4 abuts on the upper surface of the disc 13 conveyed on the turntable 7 so that the disc 13 is moved upward. A clamper 5 having a role of pressing from the side is slidably attached.

  The playback deck 6 is attached with the clamp member 4 and the turntable 7 described above, and the entire playback deck 6 is supported inside the housing 12 by a vibration isolation mechanism made of an elastic body such as rubber. It is configured not to be affected by external vibration in a state in which it can move in the left / right front / rear direction (floating state).

FIG. 3 is a perspective view in which the reproduction deck 6 and the transport roller 1 are removed from FIG.
The lock mechanism of the disk reproducing apparatus according to the first embodiment of the present invention includes a slide member 3, a rotation lever 8, and a lock member 9.
The slide member 3 is provided with a pin 3b for engaging with the elongated hole 8a at one end of the rotation lever 8.
The rotation lever 8 is made of a long plate-like body having a dogleg shape, and is fixed inside the housing 12 by a pin 8b so as to be rotatable. For this reason, the rotation lever 8 rotates around the pin 8b.
A pin 8 c for engaging with the elongated hole 9 b of the lock member 9 is provided at the other end of the rotating lever 8.

The locking member 9 is formed of a flat plate, and has a long hole 9b extending in the left-right direction at the center, and a long hole 9c extending in the front-rear direction is formed in parallel on the left and right so as to sandwich the long hole 9b.
A pin 8c provided at one end of the rotation lever 8 is engaged with the long hole 9b of the lock member 9, and a pin 12b provided at the base of the housing 12 is engaged with the long hole 9c. The movement is restricted to move only in the front-rear direction.

FIG. 4 is a diagram showing the shapes of the engaging convex portion 9a provided on the locking member and the locked portion 6a provided on the reproduction deck.
FIG. 5 is a diagram showing the engaging convex portion 9a and the locked portion 6a at the time of locking.
A narrow L-shaped bent portion 9d is formed on the same side at both the left and right ends of the lock member 9, and the base portion is parallel to the left and right sides of the bent portion 9d so as to be a tapered slope from the middle. Engaging convex portions 9a are formed.
The locked portion 6 a with which the engaging projection 9 a is engaged and disengaged is formed on a vertical wall 6-1 provided on the base in the reproduction deck 6.
The locked portion 6a has an engagement hole formed in an arc shape so that both end portions have a width substantially equal to the plate thickness of the lock member 9 and the central portion widens the width.

When the lock member 9 moves forward, the engagement convex portion 9a is engaged with the engagement hole of the locked portion 6a. However, when the reproduction deck 6 is not restricted to move up and down, left and right, and forward and backward, There may be a positional relationship in which the tip of the mating convex portion 9a and the center of the engagement hole of the locked portion 6a are shifted.
Even in such a case, the engaging convex portion 9a is formed on a tapered slope, and the center portion of the engaging hole of the locked portion 6a is formed in an arc shape, so that the locked portion is controlled while the position is forcibly restricted. The engagement protrusion 9a is locked with the engagement hole of the locked portion 6a.

Next, the operation will be described.
When the disk 13 is inserted from the outside, this insertion is detected by a detection sensor (not shown), and the motor 10 is started by a control circuit (not shown) that receives this detection signal, and receives the power to carry it. The roller 1 starts rotating and the disk 13 is conveyed toward the turntable 7.
At this time, when the disk 13 is conveyed to a certain position, the disk 13 comes into contact with the rotating member 2, and the rotating member 2 starts to rotate counterclockwise with the subsequent conveyance of the disk 13. Abutting on the abutting portion of the slide member 3, the slide member 3 is pushed forward (driven).

When the slide member 3 moves forward by the rotational movement of the rotary member 2, the rack 3 a provided on the slide member 3 engages with a gear provided in the gear train 11, and thereafter the drive of the gear train 11 is performed. Thus, the slide member 3 moves further forward.
When the slide member 3 moves forward, the projecting portion 3c provided on the slide member 3 comes into contact with the rotation shaft of the transport roller 1, and when the slide member 3 further moves forward, the projecting portion 3c moves to the transport roller 1. Is pushed down, so that the transport roller 1 is separated from the lower surface of the disk 13.

Next, the clamp member 4 and the clamper 5 start to descend as the slide member 3 moves forward, and the clamper 5 comes into contact with the upper surface of the disk 13 conveyed onto the turntable 7.
At this time, the disk 13 conveyed on the turntable 7 receives a downward urging force by the clamper 5 from the upper surface and receives an upward urging force by the conveying roller 1 from the lower surface, and is sandwiched between the clamper 5 and the conveying roller 1. Then, as the transport roller 1 is lowered, the disk 13 is also lowered and clamped to the turntable 7 on the reproduction deck 6.

  When the slide member 3 moves forward, the rotation lever 8 starts to rotate counterclockwise by the pin 3b and the elongated hole 8a, and the pin 8c provided at the other end of the rotation lever 8 and the lock member 9 The lock member 9 is moved rearward by the pivoting movement of the pivot lever 8 through the elongated hole 9b, the lock between the engagement convex portion 9a and the locked portion 6a is released, and the reproduction deck 6 is supported by the vibration isolation mechanism. The state is movable in the up / down / left / right / front / rear directions (floating state).

Hereinafter, the operation of locking and unlocking the engagement convex portion 9a of the lock member 9 and the locked portion 6a of the reproduction deck 6 will be described in detail with reference to FIGS.
FIG. 6 is a diagram showing a state when unlocking, and FIG. 7 is a diagram showing a state when locking.
Here, when the slide member 3 moves forward, the rotation lever 8 is pushed by the pin 3b engaged with the elongated hole 8a and performs a rotation movement around the pin 8b. The provided pin 8c moves backward.
The lock member 9 moves rearward as the pin 8c engaged with the elongated hole 9b moves rearward.

In this case, the lock member 9 is guided straight by the pin 12c and the long hole 9c and moves straight rearward, and the lock member 9 is unlocked as shown in FIG.
In this state, the playback deck 6 is not restricted in movement in the up / down / left / right and front / rear directions (floating state), and there is a possibility that the playback deck 6 and the lock member 9 collide with each other due to external vibration.
For this reason, the engagement convex portion 9a of the lock member 9 is in a state of being retracted to a position maintaining a certain distance from the locked portion 6a provided on the reproduction deck 6 in order to avoid colliding with the reproduction deck 6. Yes.

Here, the fixed distance is based on the shape of the engagement holes of the engagement convex portion 9a and the locked portion 6a, but can prevent the engagement convex portion 9a and the reproduction deck 6 from colliding due to vibration. The distance is, for example, a distance of about 2 mm.
Further, since the engaging convex portion 9a is formed on a tapered slope, and the central portion of the engaging hole of the locked portion 6a is formed in an arc shape, no matter which direction the tip of the engaging convex portion 9a is displaced, The distance at which the lock member 9 does not collide with the reproduction deck 6 can be maintained, and the collision is less likely to occur.

As described above, when the slide member 3 moves forward, the lock member 9 moves rearward, the lock is released, and the reproduction deck 6 becomes movable (up and down, left and right, front and rear).
Further, when locking the engaging convex portion 9a and the locked portion 6a and restricting the movement of the reproduction deck 6 in the up / down / left / right and front / rear directions, a reverse rotation signal is sent to the motor 10 from a control circuit (not shown), When the slide member 3 is moved backward by reversing the gear 11, the lock member 9 moves forward, and the engagement convex portion 9 a and the locked portion 6 a of the vertical wall 6-1 are shown in FIG. 7. It will be in the locked state.

When the engagement convex portion 9a and the locked portion 6a are locked, the upper surface A1 and the lower surface A2 (not shown) of the engagement convex portion 9a shown in FIG. 4 are respectively the engagement holes of the locked portion 6a. Abutting on the surface B1 and the surface B2, the vertical movement of the reproduction deck 6 is restricted.
The left and right surfaces A3 of the engagement convex portion 9a abut against the engagement hole surface B3 of the locked portion 6a and restrict the movement of the reproduction deck 6 in the left-right direction.
Further, the end surface A4 provided with the engaging convex portion of the lock member 9 abuts on the surface B4 of the vertical wall 6-1 on which the locked portion 6 is formed, and restricts the movement of the reproduction deck 6 in the front-rear direction.

As described above, according to the first embodiment of the present invention, since the engaging projection is formed to be the same as the plate thickness of the lock member, the height dimension can be reduced, and the disc reproducing apparatus is thin. Is effective.
The locking part is formed in a parallel and laterally tapered slope, and the locked part is an engagement hole formed in an arc shape so that the left and right ends are substantially equal to the plate thickness of the locking member and the central part is widened. Thus, the distance from the unlocked position to the locked position can be shortened, which is effective in reducing the size of the disk reproducing apparatus.
In addition, even if they are out of position, they are securely locked, and the engaging convex part and the locked part come into contact with each other at the time of locking. Regulation can be made.
Moreover, it does not lock diagonally as it is configured only with a triangular shape.

In the first embodiment, the disk reproducing apparatus is described in which the locking member includes the engaging convex portion and the locked portion includes the engaging hole. However, the locking convex portion has the same engaging convex portion as described above. Even if the lock member is configured to have the same engagement hole as described above, the same effect as in the first embodiment can be obtained.
Further, as shown in the first embodiment, the lock portion may be attached not only in the front direction but also in the left direction, the right direction, or the rear direction.
In addition, the locking member is not formed with an L-shaped folded portion, and an engagement convex portion is provided on the plate thickness end surface, and the engagement hole of the locked portion facing the engagement convex portion is formed in the vertical wall of the reproduction deck. If formed, the dimension in the height direction can be further reduced, and the disk reproducing apparatus can be made thinner.

1 is a perspective view of a disk reproducing device according to Embodiment 1 of the present invention. It is the figure which showed the relationship between a disc and a rotation member. It is a perspective view of a lock mechanism part. It is the figure which showed the shape of the lock part and the to-be-locked part. It is the figure which showed the lock part at the time of a lock | rock, and a to-be-locked part. It is a figure showing the state at the time of lock release. It is the figure which showed the state at the time of a lock | rock.

Explanation of symbols

  1 transport roller, 2 rotating member, 3 slide member, 4 clamp member, 5 clamper, 6 playback deck, 7 turntable, 8 rotating lever, 9 lock member, 10 motor, 11 gear train, 12 housing, 13 disc .

Claims (3)

A playback deck supported in a floating state inside the housing;
A rotating member pushed and moved by a disk inserted into the housing;
A slide member driven based on the rotation of the rotation member;
A locking member formed of a flat plate provided in the housing to be pushed and moved based on the driving of the sliding member;
A locked portion provided in the reproduction deck perpendicular to the moving direction of the lock member;
On the opposing surface of the locking member and the locked part, one is an engaging convex part formed on a slope with a base parallel to the left and right, and the other is substantially the same as the thickness of the engaging convex part on the left and right ends. A disc reproducing apparatus having an engagement hole formed in an arc shape so that the central portion has an equal width and the width is increased.   The locking member includes an engaging convex portion whose base portion is parallel to the left and right and is formed in a tapered slope in the middle, and the locked portion has a width that is substantially equal to the plate thickness of the engaging convex portion at the left and right ends. 2. The disk reproducing apparatus according to claim 1, further comprising an engagement hole formed in an arc shape so as to widen the width.   The locked member includes an engaging convex portion whose base portion is parallel to the left and right and is formed in a tapered slope in the middle, and the locking portion has a width that is substantially equal to the plate thickness of the engaging convex portion at the left and right ends. 2. The disk reproducing apparatus according to claim 1, further comprising an engagement hole formed in an arc shape so as to widen the width.

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