JPH08221969A - Attaching device for actuation mechanism - Google Patents

Abstract

PURPOSE: To facilitate assembling operation in the case of fixing a set base on a chassis and to improve serviceability in the case where trouble is caused. CONSTITUTION: An insertion hole 20 where a screw 18 is inserted through is formed on a tray 1 so that the set base 3 can be screwed from the upper side of the tray 1, and a guide hole 17 is formed on the set base 3, whereby a screwing point to fix the set base 3 on the chassis 14 of a signal recording medium reproducing device is provided at the part of the set base 3 covered with the tray 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus for reproducing a signal recording medium, a tray and a driving mechanism for the tray in a reproducing apparatus which conveys the signal recording medium to a reproducible position by sliding the tray. The present invention relates to an operating mechanism attachment device for attaching various operating mechanisms to a chassis by screwing and fixing an installation table on which various operating mechanisms are installed to a chassis.

[0002]

2. Description of the Related Art As is well known, a signal recording medium reproducing apparatus for reproducing a signal recording medium such as a disc is of a type in which a signal recording medium is conveyed by using a tray and the signal recording medium is mounted on a reproducing mechanism. Exists as one of the mainstream.

In such a tray type signal recording medium reproducing apparatus, generally, the tray is slidably supported on an installation table provided with a reproduction mechanism for reproducing the signal recording medium, and the tray is mounted on the installation table. A drive mechanism for driving is installed, and the tray is driven on the installation table.

By doing so, all of the various operating mechanism parts of the signal recording medium reproducing device can be centrally provided and constructed on the installation table, which is suitable for selling the kit and reproducing the signal recording medium. The assembly work of the device can be simplified.

[0005]

By the way, since the installation base in which the operation mechanism portions are centrally provided is commonly installed in the signal recording medium reproducing apparatuses of various sizes, the external shape of the installation base is The size cannot be increased unnecessarily, and it is necessary to adopt a configuration in which the width of the installation table is set to be slightly wider than the width of the tray.

In this case, it is necessary to provide a screwing portion for fixing the installation table to the chassis of the signal recording medium reproducing device in a portion of the installation table covered by the tray,
As a result, the installation base is fixed by screwing it from the chassis side, which makes it difficult to align the installation base and, in many cases, because the installation base is located below the tray, signal recording is performed. There was a problem in workability because the medium reproducing device had to be turned over and fixed with screws.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a mounting device for an operating mechanism which solves the above problems.

[0008]

According to the present invention, a tray is slidably supported and an installation table on which a reproducing mechanism is installed, a chassis to which the installation table is fixed by screwing, and the installation table. A guide hole for guiding a screw for fixing the installation base to the chassis with a screw; and an insertion hole formed in the tray for securing a screw insertion hole into the guide hole. ing.

Further, the insertion hole is formed at a position facing the guide hole at a position where the tray does not protrude from the front panel when the tray is displaced to the sliding limit of the open position where the tray protrudes from the front panel.

Further, a guide portion extending to the lower surface of the tray is formed in the insertion hole, and the insertion hole is brought close to the guide hole.

[0011]

According to the present invention, when a screwing point for fixing the installation base to the chassis of the signal recording medium reproducing device is provided in a portion of the installation base covered with the tray, an insertion hole for inserting the screw is formed in the tray. However, the installation table can be screwed from the top of the tray. Then, a guide hole facing the insertion hole is formed in the installation base so as to guide a screw used for fixing the installation base to a predetermined screwing position.

Further, the position where the insertion hole is formed is set to a position where the position of the insertion hole and the guide hole can be easily aligned, and the insertion hole is not exposed. In addition, by forming a guide portion extending to the lower surface of the tray in the insertion hole in an area where the guide hole cannot be formed so as to secure the sliding space of the tray, the screw inserted in the insertion hole is smooth. It is designed to be guided to the guide hole.

[0013]

FIG. 1 and FIG. 2 both show C as a signal recording medium.
FIG. 1 shows a mounting device of an operating mechanism according to the present invention corresponding to a CD player using a D (compact disc), and FIG. 1 is an end view showing a state in which a tray 1 is displaced from a front panel 2 to an open position. 2 is a plan view showing a state in which the tray 1 is displaced to the storage position.

In FIG. 1, reference numeral 3 denotes an installation table on which the tray 1 is slidably supported.
There is provided a drive mechanism (not shown) including a pinion gear 5 meshed with a rack 4 formed on the back surface of the tray 1 for slidingly driving the.

Reference numeral 6 denotes a mechanical base to which a turntable 8 for rotating the disk 7 and an optical pickup 9 for reading a signal from the disk 7 are attached. The mechanical base 6 together with the turntable 8 and the optical pickup 9 constitutes a reproducing mechanism. I am configuring.

First and second guide grooves 10 and 11 are formed on the inside of each side surface of the installation table 3 at two positions on the front side and the back side with respect to the sliding direction of the tray 1, respectively. The mechanical base 6 is formed with guided protrusions 12 and 13 on the outer sides of the respective sides, which are guided and inserted into the first and second guide grooves 10 and 11, respectively. That is, the mechanical base 6 is displaceable in an oblique direction so as to be raised and lowered while being slid along the first and second guide grooves 10 and 11, and a mounting position for mounting a disk on the turntable 8 and a disk transporting operation. The turntable 8 is supported by the installation table 3 so as to be displaceable between the turntable 8 and the retracted position.

Further, the installation table 3 is provided with boss-shaped legs 15 and 16 having screw insertion holes for screwing respectively formed on the left and right sides so as to be fixed to the chassis 14, respectively. Above each of the front boss-shaped legs 15, a guide hole 1 having a diameter larger than that of the screw insertion hole of the boss-shaped leg 15 and coaxial therewith.
7 are formed.

The chassis 14 has the boss-shaped legs 15, 1
A boss 19 having a screw hole into which a screw 18 is screwed is formed at each position opposed to 6. On the other hand, the tray 1 is formed with insertion holes 20 corresponding to the guide holes 17, which are insertion holes into the guide holes 17.
0 is formed at a position facing the guide hole 17 in a state in which the tray 1 is displaced from the front panel 2 to the slide limit of the open position. The insertion hole 20 is set at a position where it does not protrude from the front panel 2.

Reference numeral 21 is a crimping member for crimping the disk 7 onto the turntable 8, which is a donut-shaped magnet 2 so as to face the disk mounting surface of the turntable 8.
2 is provided. The crimping member 21 is loosely fitted in an elliptical elongated hole 24 formed in a erection plate 23 laid between the side surfaces of the installation table 3, and is freely displaceable in the major axis direction of the ellipse of the elongated hole 24. It is supported.

Next, each operation of the operating mechanism provided on the installation table 3 will be described. It is now assumed that the tray 1 is in the open position as shown in FIG. At this time, the guided projections 12 and 13 of the mechanical base 6 have reached the lowest points of the first and second guide grooves 10 and 11, respectively, and the mechanical base 6, that is, the reproducing mechanism, is displaced to the retracted position.

From this open state, the tray 1 is driven by the rack 4 and the pinion gear 5 to slide and move the tray 1 to the storage position. Then, when the sliding displacement of the tray 1 eventually progresses to a position where the center hole of the disk 7 on the tray 1 faces the turntable 8 of the reproducing mechanism, the engaging projection 25 is brought into contact with the engaged projection 26. It Therefore, when the tray 1 is slidably displaced after that, the tray 1
The mechanical base 6 causes the engaged protrusion 26
It is pressed in the sliding displacement direction of the tray 1 via.

When the mechanical base 6 is pressed by the sliding displacement of the tray 1, the guided projections 12 and 13 are displaced in the sliding displacement direction of the tray 1 in the first and second guide grooves 10 and 11, respectively. It Therefore, the playback mechanism is the first
Also, the second guide grooves 10 and 11 are lifted to be displaced from the retracted position to the mounting position along the guide direction.

When the reproduction mechanism is raised, the turntable 8 is displaced above the tray 1 through the hole 1a of the tray 1. Therefore, the disc 7 is placed on the turntable 8, and the disc 7 is separated from the tray 1. When the reproducing mechanism is further raised, the central projection of the turntable 8 is inserted into the central concave portion of the crimping member 21, and the disc 7 is crimped onto the turntable 8 by the crimping member 21. The displacement to the mounting position is completed.

At the time when the reproducing mechanism is displaced to the mounting position, the sliding displacement of the tray 1 to the storage position is completed, so the operation of the drive mechanism is stopped and the sliding displacement of the tray 1 is completed. At this point, the guided protrusions 12 and 13 have reached the flat portions of the tops of the first and second guide grooves 10 and 11, respectively, and the tray 1 is locked, so that the reproducing mechanism is shown in FIG. It is stable when it is displaced to the mounting position.

Next, the assembling work for fixing the installation table 3 to the chassis 14 will be described. First, the tray 1 is in a state of being displaced to the sliding limit of the open position. In this state, the insertion holes 20 face the guide holes 17, respectively. Therefore, when the screws 18 are inserted into the insertion holes 20, the screws 18 are inserted into the guide holes 17.

Here, the insertion hole 20 is formed with a guide portion protruding downward from the thickness of the tray 1, and the insertion hole is formed in a range where the guide hole 17 cannot be formed so as to secure a sliding space of the tray 1. 20 is formed so as to extend to the lower surface of the tray 1. Therefore, the insertion hole 20
Since only a slight gap is formed between the guide hole 17 and the guide hole 17, the screw 18 inserted into the insertion hole 20 is guided without being removed from the gap and is smoothly inserted into the guide hole 17. Will be done.

Since the screw inserted in the guide hole 17 is guided to the screw insertion hole of the boss-like leg 15, the boss 19 of the chassis 14 aligned by performing a screwing operation.
It is screwed into the screw hole.

On the other hand, the screw 18 is directly inserted into the screw insertion hole of the rear boss-like leg 16 and screwed into the screw hole of the boss 19 of the chassis 14 in which the screw 18 is aligned. Are combined.

Therefore, as described above, each boss-shaped leg 1
The assembly work for fixing the installation base 3 to the chassis 14 is completed by screwing the screws 18 into the screw holes of the bosses 19 through the screw insertion holes 5 and 16, respectively.

[0030]

As described above, according to the present invention, when a screwing point for fixing the installation base to the chassis of the signal recording medium reproducing device is provided in the portion of the installation base covered by the tray, the tray is screwed. A through hole for inserting the is formed to enable screwing of the installation table from the upper side of the tray,
Since the guide hole is formed in the installation base, it is not necessary to turn over the signal recording medium reproducing device when fixing the installation base to the chassis, and the screw is automatically guided to the screwed position,
The screwing work can be mechanized, the assembling work is easy, and the serviceability in the event of a failure can be improved.

Further, since the insertion hole is formed at a position facing the guide hole at a position where it does not protrude from the front panel when the tray is displaced to the sliding limit of the open position where the tray protrudes from the front panel, the insertion hole is formed. The hole and the guide hole can be easily aligned with each other, and the insertion hole is not exposed when the signal recording medium reproducing device is in use, so that the appearance is not spoiled.

In order to secure a sliding space for the tray, a guide portion extending to the lower surface of the tray is formed in the insertion hole in a range where the guide hole cannot be formed so as to project, so that the insertion hole is used during screwing work. The screw to be inserted into the guide hole is prevented from falling off between the insertion hole and the guide hole, and the screw can be surely inserted into the guide hole.

[Brief description of drawings]

FIG. 1 shows a mounting device for an operating mechanism according to the present invention,
It is an end view which shows the state which the tray was displaced to the open position of the state which protruded from the front panel.

FIG. 2 shows a mounting device for an operating mechanism according to the present invention,
It is a top view showing the state where the tray was displaced to the storage position.

FIG. 3 is an end view showing a state in which the tray is displaced to a storage position, which is used for explaining the present invention.

[Explanation of symbols]

 1 Tray 3 Installation base 6 Mechanical base 8 Turntable 14 Chassis 15, 16 Boss leg 17 Guide hole 19 Boss 20 Insertion hole

Claims (3)

[Claims] 1. A signal recording medium reproducing apparatus which mounts a signal recording medium on a slidably supported tray and conveys the signal recording medium by sliding the tray to mount the signal recording medium on a reproducing mechanism. The tray is slidably supported, an installation table on which the reproduction mechanism is installed, a chassis to which the installation table is fixed by screws, and a chassis formed on the installation table. A mounting device for an operating mechanism, comprising: a guide hole for guiding a screw for screwing to a screw; and an insertion hole formed in the tray to secure an insertion port for the screw into the guide hole. 2. The insertion hole is formed at a position facing the guide hole at a position where the tray does not protrude from the front panel when the tray is displaced to the sliding limit of the open position where the tray protrudes from the front panel. The attachment device for an operating mechanism according to claim 1, which is characterized in that. 3. The attachment device for an operating mechanism according to claim 1, wherein a guide portion extending to the lower surface of the tray is formed in the insertion hole, and the insertion hole is brought close to the guide hole.