JPH0445153Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a rail tray that guides the insertion of a compact disc into a compact disc player including the tray when playing a compact disc.

Prior Art There is a method for inserting a compact disc into a compact disc player for playback, in which the compact disc is directly inserted into the compact disc player, but there is also a method in which the tray containing the compact disc is inserted into the compact disc player. has been devised.

For those that directly insert a compact disk,
Since you have to hold the compact disc directly, the surface of the compact disc may become cloudy.
It may cause damage. Further, when a compact disc player is mounted on a car, if an attempt is made to insert the compact disc into the compact disc player while the vehicle is running, the compact disc may hit the compact disc player's cabinet or the like, causing damage.

Therefore, a system was devised in which the tray and the compact disc are inserted into a compact disc player without removing the compact disc from the tray containing the compact disc even when playing the disc.

Problems to be Solved by the Invention When inserting a tray into a compact disc player, the tray must be guided by a rail tray provided on the bracket loading. That is, when a tray is inserted through an opening in the nose of the cabinet and pushed in slightly, the tray enters the rail tray, and the rail tray guides the tray for further pushing.

There would be no problem if the tray was pushed in straight while being guided by the rail tray, but in most cases it ends up being pushed in diagonally. As a result, the label surface, which is the top surface of the compact disk housed in the tray, may rub against the inside top surface of the rail tray, resulting in scratches on the label surface, or the leading edge of the tray may come into contact with the inside top surface of the rail tray. This makes it impossible to insert it smoothly.

Therefore, in view of the above problems, this invention allows for smooth insertion even if the tray is slightly slanted when inserting and pushing the tray into a compact disc player. To provide a rail tray for a compact disc player that can be inserted with the tray without being damaged.

Means for Solving the Problems And for the above purpose, the present invention provides a pair of rail trays each having a substantially U-shaped cross section, extending an appropriate length from the entrance side toward the rear side, and extending the length of the rail tray to the rear side from the entrance side. The open sides of the rail trays are arranged at an appropriate distance from each other with the open sides facing each other, and the open sides of the roughly U-shaped cross sections of the respective rail trays are made appropriately wide on the entrance side of the inner upper surface of the rail trays. It is characterized by the fact that the entire area from the to the back side is sloped.

Function: Even if the tray is slightly tilted when the tray is guided and pushed into the rail tray, the inner upper surface of the rail tray is a sloped surface, so only the upper corner of the tray will be aligned with the sloped surface of the rail tray. Because of this contact, the upper end of the tray does not come into contact with the label surface of the compact disc. Further, even during insertion, only the corners on both sides of the tray come into contact with the inclined surface and do not contact over a long range, so there is little frictional resistance.

Embodiment Hereinafter, a rail tray according to an embodiment of this invention will be described together with a compact disc player equipped with this tray.

A tray 2 that accommodates a compact disk 1,
This is shown in FIGS. 18 to 24. Tray 2
is a tray gripping section 2 for gripping the tray 2;
A and the tray body 2b are integrally molded with synthetic resin or the like, and the tray body 2b has a recess slightly larger than the outer diameter of the compact disk 1 to accommodate the compact disk 1. It is listed as part 2c. A plurality of locking claws 2d, 2 protruding in the radial direction of the compact disc 1 are provided on the upper edge of the compact disc receiving portion 2c.
e, 2e are formed. This locking claw 2d, 2
The protruding lengths of e and 2e are such that they protrude slightly inward from the outer peripheral edge of the compact disc 1 accommodated in the compact disc receiving portion 2c.
Further, in this embodiment, the locking claws 2d, 2e, 2
e is formed in three places, one of which is a locking claw 2d on the side of the tray gripping part 2a, and the other two are locking claws formed at an appropriate distance on the opposite side of the tray gripping part 2a. 2e, 2e. The locking pawl 2d is movable in the radial direction of the compact disc 1, and its range of movement is between a position occupying the upper part of the compact disc 1 and a position retracting from above. In this embodiment, the locking pawl 2d can be freely moved by the elasticity of the band-shaped part 2f, which has both ends connected to the tray gripping part 2a and is positioned at an appropriate distance from the tray gripping part 2a to the tray body 2b side. It is possible. Due to this elasticity, the locking pawl 2d is always urged to be positioned above the compact disc 1.

In addition, near the ends of both sides of the tray main body 2b, there are formed locking notches 2g, 2g each having a substantially trapezoidal shape. In the figure, 2h is a slit of an appropriate size, and an optical pickup (not shown) faces the reproduction surface of the compact disc 1 at the slit 2h.

Compact disk 1 accommodated in the tray 2 above
The structure of a compact disc player for playing will be explained according to the illustrated embodiment.

Bracket sides 4l and 4r are fixed to both sides of a chassis disk 3 whose four peripheral edges are bent downward. A pair of substantially L-shaped guide holes 5, 5, etc. are formed at appropriate positions on the bracket sides 4l, 4r, and relief holes are provided at appropriate positions to allow rotation of the arm clamp, which will be described later. Holes 6l (not shown) and 6r are formed.

Inside the bracket sides 4l and 4r,
A movable bracket loading 7 is positioned along the bracket sides 4l, 4r for holding and loading the tray 2. Both side edges of the bracket loading 7 are bent downward and formed into bent portions 7l and 7r,
A pair of support pins 8, 8, . . . are loosely fitted into L-shaped guide holes 5, 5, .
has been planted.

The tray 2 is located inside the bent portions 7l and 7r.
A pair of rail trays 9l and 9r each having a substantially U-shaped cross section capable of receiving both side edges of the rail trays are extended from the entrance side toward the back side for an appropriate length, and the open side of the substantially U-shaped cross section is extended from the entrance side toward the back side. They are placed facing each other.
Of these rail trays 9l and 9r, the rail tray 9l located on the left side is shown in FIGS. 2 to 9, and the rail tray 9r located on the right side is shown in FIGS. 10 to 1.
It is shown in Figure 7. Then, the rail tray 9
The upper surface of the inside of the approximately U-shaped cross section of
As shown in FIGS. 9, 15, and 17, the open side of the substantially U-shaped cross section is formed as an inclined surface 9a so as to be wider. This inclined surface 9a is formed over the entire area from the entrance side to the back side of the rail trays 9l and 9r. This rail tray 9l, 9r
A recessed portion 9b is formed in the inner upper surface of the disc 1 at approximately the center of the disc 1, which is recessed from the other inner upper surface to an extent that is appropriately larger than the outer shape of the inserted compact disc 1. Furthermore, the inlet side of the compact disk 1 of the rail trays 9l, 9r is connected to the rail trays 9l, 9r.
9r is expanded in the longitudinal direction to form an expanded portion 9c, so that the tray 2 can be easily inserted. Further, the lower end portions of the rail trays 9l, 9r having the substantially U-shaped cross section are made to protrude slightly longer than the upper end portions to form a stopper portion 9d. In this embodiment, the length of the rail trays 9l, 9r in the longitudinal direction of the stopper portions 9d is
Although it is shown that it is formed over the entire length in the longitudinal direction of r, it may be formed to an appropriate length from the entrance side of the compact disc 1. In this embodiment, the rail trays 9l and 9r are provided from the entrance side end of the bracket loading 7 into which the compact disk 1 is inserted to a position past the center of the bracket loading 7. However, the length may be any length as long as it extends from the entrance side to the back side.

Further, on the back side from the rail trays 9l and 9r, there is a hooking notch 2 formed in the tray 2.
Lock trays 10, 10 are provided which engage and disengage from the trays g and 2g (as shown in the first figure). This lock tray 10,
10 is made of, for example, synthetic resin, and uses its own elasticity to occupy and retreat within the movement range of the tray 2 inserted into the rail trays 9l, 9r of the bracket loading 7. In addition, escape notches 7a and 7a are provided at appropriate positions of the bent portions 7l and 7r of the bracket loading 7 so that arm clamps, which will be described later, do not obstruct the movement of the bracket loading 7 (28th (Illustrated).

A suitably shaped through hole 7b is formed on the upper surface of the bracket loading 7, and the tips of an arm clamp, a clamper, and a holder clamp, which will be described later, are located in the through hole 7b to allow rotation of the arm clamp. be.

Further, on the lower side of the plate forming the upper surface of the bracket loading 7, a cushion tray 11, which is slidable with respect to the bracket loading 7, is provided.
11 are provided. This cushion tray 11,
11 and the bracket loading 7, and the restoring force of the tension coil springs 12, 12 causes the cushion trays 11, 11 to always move toward the arrow mark P in FIG. It is biased so that it is in the same direction. At one end of the cushion trays 11, 11, there are formed stopper tongues 11l, 11r which are bent downward and formed. Piece 11l,
11r. Note that the lock trays 10, 10 are replaced by the cushion tray 1.
1 and 11, the latching notch 2 of the tray 2
This is desirable because engagement and disengagement between lock trays 10 and 10 can be smoothly performed.

Bracket slides 13l, 13r that are slidable on the bracket sides 4l, 4r are provided on both outer sides of the bracket sides 4l, 4r. As shown in FIGS. 28 to 31, the bracket slides 13l, 13r have guide elongated holes 13 into which pins 4a, 4a, etc. installed at appropriate positions on the bracket sides 4l, 4r are loosely fitted.
a, 13a... are provided, and support pins 8, 8..., which are implanted in the bracket loading and pass through L-shaped guide holes 5, 5... formed in the bracket sides 4l, 4r, are loosely fitted. Slanted through holes 13b, 13b... are provided. Also, in the figure,
Reference numerals 13c and 13c are guide holes for loosely fitting guide pins that are implanted outwardly at both ends of the arm clamp, which will be described later, and are formed by connecting a horizontal hole portion 13d and an inclined hole portion 13e. Further, loading racks 14l, 14r are provided on the bracket slides 13l, 13r.

In the figure, 15l and 15r are loading pinions that mesh with the loading racks 14l and 14r.
5r is fitted onto a counter shaft 16 provided through the bracket sides 4l, 4r. Then, the gear train 17 is attached to the loading pinion 15r.
The rotation of the output shaft of the reversible rotary motor 38 is transmitted at a reduced speed.

At the front end and back end of the bracket slides 13l and 13r, there are locking notches 1 that are open on the front side.
8a and 18b are provided. The locking notch 18a,
The locking notch 18b at the rear end of the 18b is
Bent parts 13f, 1 formed by bending and protruding a part of the rear side of the bracket slides 13l, 13r outward.
It is formed at 3F. And the above-mentioned locking notch 18
stud lock 19a, which engages and disengages from a and 18b;
19b are provided on both side plates 20a, 20a of the outer casing 20 so as to project inward. This engagement and disengagement is performed by moving the bracket slides 13l and 13r when loading the compact disc 1.
That is, when the compact disk 1 is ejected by unloading and the bracket slides 13l, 13r are located at the frontmost position, the locking notches 18a, 18b and the stud lock 19 are removed.
a and 19b, and conversely, when loading is completed and the compact disc 1 is positioned at the playback position, the engagement is released.

In addition, below the bracket slide 13l,
A sliding plate 21 is provided which is slidable on the bracket side 4l, and a locking notch 21a with an open rear side is formed at the rear end of the sliding plate 21. A rack 21b is formed on the upper edge of this sliding plate 21, and a pinion 22 that meshes with this rack 21b is rotatably supported on the bracket side 4l, and the pinion 22 is mounted on the bracket slide 13l. Installed loading rack 1
It is engaged with 4l. And the above-mentioned locking cut 2
1a and the stud lock 19b can be freely engaged and disengaged, and these locking notches 21a and the stud lock 19b engage with each other during unloading.

In the figure, reference numeral 23 denotes an arm clamp, and a supporting piece 2 erects a part of the rear side of the chassis disk 3.
4 and 24 by a shaft 25 so as to be rotatable. Arm portions 23a, 23a reaching the bracket sides 4l, 4r are provided at appropriate positions on both sides of the arm clamp 23, and a guide pin 23b protruding laterally is provided at the tip of the arm portions 23a, 23a. , 23b are provided protrudingly. The guide pins 23b, 23b are loosely fitted into guide holes 13c, 13c formed in the bracket slides 13l, 13r.

The positions of the guide pins 23b, 23b, the support pins 8, 8 embedded in the bent portions 7l, 7r of the bracket loading 7, the L-shaped guide holes 5, 5..., and the guide holes 13c, 13c. The relationship is that the support pins 8, 8... are connected to the L-shaped guide holes 5, 5... formed in the bracket sides 4l, 4r.
When the guide pin 23 is located in the horizontal part of
b, 23b are located in the horizontal holes 13d of the guide holes 13c, 13c, and the support pins 8, 8... are located in the horizontal holes 13d of the guide holes 13c, 13c.
When the guide pins 23b, 23b are located in the vertical part of the guide holes 5, 5...
c, 13c is located at the inclined hole portion 13e.

An annular holder clamp 26 is provided at the tip of the arm clamp 23.
6, a clamper 27 is rotatably fitted loosely therein. The compact disc 1 is held between the clamper 27 and a disc table 28 rotated by a rotary capacitor (not shown), and the compact disc 1 is rotated during playback. On the lower surface of the clamper 27, there is a magnet 2 as shown in FIG.
9 is attached, and the magnetic force of the magnet 29 reliably presses the clamper 27 and the disk table 28 together. Further, a sphere 30 is embedded in the upper surface of the clamper 27, and the arm clamp 23 presses the clamper 27 onto the disk table 28 via the sphere 30.
That is, since the clamper 27 is supported by point contact with the arm clamp 23 via the sphere 30, the rotation of the clamper 27 is performed smoothly.

When the loading for playing the compact disc 1 is completed, the disc table 28 is located within the slit 2h of the tray 2, and the top surface of the disc table 28 is higher than the top surface of the compact disc receiving part 2c of the tray 2. and place the compact disk 1 into the tray 2.
It is designed so that it can be separated from the

In the figure, reference numeral 35 denotes an optical headblock to which the disk table 28, an optical pickup (not shown), etc. are mounted.

Although not shown, the chassis disk 3 is housed in an outer casing 20 via a buffer to prevent external vibrations from being transmitted to the chassis disk 3, and the outer casing 20 is housed in a cabinet 36. has been done. In the figure, reference numeral 37 denotes a nose portion, which is located in front of the cabinet 36 and has an opening into which the tray 2 containing the compact disk 1 is inserted. Furthermore, it is preferable to provide a switch for detecting when the tray 2 is inserted into the bracket loading 7 and positioned at an appropriate position, in order to ensure reliable operation. It is also possible to have them linked.

The operation of the embodiment of the present invention constructed as described above will be explained together with the operation of a compact disc player in which the present invention is also implemented.

When the compact disk 1 is inserted and pushed together with the tray 2 from the nose portion 37, the tray 2 is guided by the rail trays 9l and 9r and pushed into the inner part. When the tray 2 is pushed in, even if the tray 2 is inserted somewhat obliquely as shown by the two-dot chain line in FIGS. 4 and 12, the rail tray 9l,
Since the inner upper surface of the tray 9r is formed as an inclined surface 9a, only the upper corner 2i of the tray 2 contacts the inclined surface 9a as shown in FIG. The label surface of No. 1 does not come into contact with the inner upper surfaces of the rail trays 9l and 9r. Therefore, the label surface will not be damaged. Also, even during insertion, only the corners on both sides of the tray 2 contact the inclined surface 9a, and do not contact the inner upper surfaces of the rail trays 9l and 9r over a long range, so there is little frictional resistance, and the tray 2 is moved far from the entrance side. It can be pushed smoothly all the way to the side.

When pushed in to the innermost part, the locking trays 10, 10 engage with the locking notches 2g, 2g formed in the tray 2, and the tip of the tray 2 hits the lower stopper pieces 11l, 11r of the cushion trays 11, 11. come into contact with Even if this tray 2 is pushed in with more force than necessary, the cushion tray 1
Tension coil springs 12, 12 provided at 1, 11
This force is alleviated by the restoring force of the tray 2 and the compact disc player itself, so that it does not damage the tray 2 or the compact disc player itself.

When the tray 2 is pushed into the innermost part, the reversible motor 38 is rotated by a switch (not shown) that detects the presence of the tray 2 or by manual operation of a button (not shown). This rotation is decelerated and transmitted to the loading pinion 15r via the gear train 17, and the loading pinion 15r rotates clockwise in FIG. 28. The reversible rotary motor 38 rotates the loading pinion 15r in the clockwise direction in FIG.
Let the rotation be a positive rotation. This rotation of the loading pinion 15r is also transmitted to the loading pinion 15l via the counter shaft 16, and these loading pinions 15l and 15r rotate synchronously. This loading pinion 15l, 15
By the rotation of r, bracket slides 13l and 13r, which are provided with loading racks 14l and 14r that mesh with these slides, move in the direction of arrow Q in FIGS. 28 and 30, respectively. By the movement of the bracket slides 13l, 13r, the inclined through holes 13 formed in the bracket slides 13l, 13r open.
Support pins 8, 8... loosely fitted in b, 13b...
The bracket loading 7 equipped with the following moves in the same direction in the figure. In this case, the support pin 8,
8... is located in the horizontal part of the L-shaped guide holes 5, 5... formed in the bracket sides 4l, 4r, the movement in the horizontal direction, that is, as shown in FIGS.
Movement in the upward arrow Q direction in Figure 0 is performed. This horizontal movement is continued until the center of the compact disc 1 is located above the disc table 28.

Note that since the tray 2 is held on the rail trays 9l and 9r of the bracket loading 7, the tray 2 also moves along with the bracket loading 7.

After the support pins 8, 8... are located at the vertical portions of the L-shaped guide holes 5, 5..., the support pins 8, 8... are positioned on the bracket slides 13l,
While being guided by the inclined through holes 13b, 13b, . . . 13r, the robot descends through the vertical portion. Accordingly, the bracket loading 7 is also lowered, and the compact disc 1 is lowered onto the upper surface of the disc table 28. Furthermore, when the support pins 8, 8... are located in the vertical portions of the L-shaped guide holes 5, 5..., the guide pins 23b, 23b of the arm clamp 23 are also positioned in the guide holes 13c, 13c formed in the bracket slides 13l, 13r. Located in the inclined hole part 13e,
Thereafter, as the bracket loading 7 descends, the arm clamp 23 rotates counterclockwise from the position shown by the dashed line in FIG. 32.

Then, as shown by the solid line in FIG. 32, the compact disc 1 is held between the clamper 27 and the disc table 28, and the rotation of the compact disc 1 for reproduction is performed smoothly.

In order to eject the compact disc 1 after the playback of the compact disc 1 is completed, the reversible rotary motor 38 may be rotated in the opposite direction to that described above. Due to the reverse rotation of the reversible motor 38, the loading pinions 15l, 15r rotate in the counterclockwise direction in FIGS. It will be dinged. Due to this movement of the bracket slides 13l and 13r, the bracket loading 7 rises, and the arm clamp 23
is rotated clockwise from the position shown by the solid line in FIG. 32 to release the compact disc 1 from its restraint. In addition, as shown in the figure, the loading pinions 15l, 15r are attached to the bracket slides 13l, 15r.
13r, the force generated by the rotation of the loading pinions 15l, 15r acts to push the bracket slides 13l, 13r upward, allowing the bracket slides 13l, 13r to move smoothly.

Then, support pins 8, 8... are placed in the vertical parts of the L-shaped guide holes 5, 5... of the bracket sides 4l, 4r.
is guided and the bracket loading 7 rises, and then the support pins 8, 8... are guided to the horizontal portions of the L-shaped guide holes 5, 5..., and the bracket loading 7 is moved upward in the direction indicated by the arrow R in FIG. tray 2 is ejected. Moreover, when the bracket slides 13l, 13r move to the frontmost position, the bracket slides 13l, 13r move to the frontmost position.
The outer casing 2 is inserted into the locking notches 18a and 18b provided at r.
The stud locks 19a and 19b protruding from 0 are located. In addition, bracket side 4
A sliding plate 21 slidably provided on the bracket slides 13l and 4r is connected to the bracket slide 13l via a pinion 22.
On the contrary, the stud lock 19b moves in the opposite direction of the arrow R in FIG. 31, and the stud lock 19b is located within the locking notch 21a. In this way, the start lock 1
FIG. 30 shows a state in which the 9a and 19b are located in the respective locking notches 18a, 18b and 21a. In this state, unloading is completed and the tray 2 is held by gripping the tray gripping portion 2a. Just pull it out of your compact disc player. In this state where the stud locks 19a, 19b are located in the locking notches 18a, 18b, and 21a, even if the chassis disk 3 is housed in the outer casing 20 via the buffer, the buffer is Since this function is not performed, if the tray 2 is inserted from the nose portion 37, the tray 2 can be held by the rail trays 9 without fail.

Effects As described above, the rail tray of the present invention includes a pair of rail trays each having a substantially U-shaped cross section, which are installed at an appropriate distance from each other on the bracket loading rack, with the open sides of the substantially U-shaped cross section facing each other. Since the structure is characterized in that the inner upper surface of each rail tray is formed into an inclined surface so that the open side of the substantially U-shaped cross section of each rail tray is appropriately wide, the following effects can be obtained.

According to the present invention, since the inner upper surface of the rail tray is formed as an inclined surface, even if the tray is inserted at an angle, only the upper corner of the tray will come into contact with the inclined surface, so that it will not be accommodated in the tray. The inner upper surface of the rail tray does not come into contact with the label surface of the compact disc, and therefore the label surface is not scratched. Also, even during insertion, only the corners on both sides of the tray come into contact with the sloped surface of the rail tray and do not contact over a long range, so there is little frictional resistance and the tray can be pushed smoothly from the entrance side to the back side.

Therefore, it has the effect of increasing the practicality of a compact disc player in which a compact disc is inserted with the tray.

[Brief explanation of the drawing]

The drawings illustrate preferred embodiments of the invention. FIG. 1 is a plan view of a compact disc player embodying the present invention, with a portion cut away to show the state before loading. Figure 2 is a left side view of the left rail tray, Figure 3 is a plan view, Figure 4 is a right side view, Figure 5 is a sectional view taken along the - line in Figure 4, and Figure 6 is a left side rail. 7 is a cross-sectional view taken along the line - in FIG. 4, FIG. 8 is a front view of the left rail tray, and FIG. 9 is a rear view of the tray.
The figure is a sectional view taken along the - line in FIG. 4. 1st
Figure 0 is a right side view of the right rail tray, Figure 11 is a plan view, Figure 12 is a left side view, Figure 13 is a sectional view taken along the - line in Figure 12,
Figure 14 is a rear view of the right rail tray, Figure 15
The figure is a sectional view taken along the line -1 in Figure 12.
FIG. 6 is a front view of the right rail tray, and FIG. 17 is a sectional view taken along the - line in FIG. 12. FIG. 18 is a plan view of the tray according to the present invention.
FIGS. 19, 20, and 21 are cross-sectional views taken along lines -, -, and -, respectively, in FIG. 18. FIG. 22 is a left side view of the tray, and FIG. 23 is a bottom view thereof. Figure 24 shows - in Figure 23.
It is an arrow view. FIG. 25 is a plan view of a compact disc player embodying the present invention, with a portion cut away to show the state before loading. FIG. 26 is a partially cutaway plan view when loading is completed. FIG. 27 is also a front view, with some parts omitted. FIG. 28 is a right side view of the compact disc player, showing the state before loading, and FIG. 29 similarly shows the state after loading is completed. FIG. 30 is a left side view of the compact disc player, showing the state before loading, and FIG. 31 similarly showing the state after loading is completed. Figure 32 is - in Figure 25.
This is a cross-sectional view taken along a line to explain the operation. 1...compact disk, 2...tray, 2
d, 2e, 2e...Latching claw, 3...Chassis disc, 4l, 4r...Bracket side, 7...
Bracket loading, 9l, 9r...Rail tray, 9a...Slanted surface, 9b...Recessed part, 9c
... Expansion part, 9d, 9d... Stopper part, 13
l, 13r...bracket slide, 23...arm clamp, 27...clamper, 28...disc table.

Claims (1)

[Scope of utility model registration request] When inserting the tray 2 containing the compact disc 1 into the compact disc player, a pair of rail trays 9l and 9r, each having a substantially U-shaped cross section, which guide the tray 2, are moved from the entrance side to the back side and set to an appropriate length. The rail trays 9 are extended and provided at an appropriate distance from the bracket loading 7 with the open sides of the substantially U-shaped cross sections facing each other.
Each tray is characterized in that the entire area from the entrance side to the back side of the inner upper surface of the rail trays 9l and 9r is made into an inclined surface 9a so that the open side of the substantially U-shaped cross section of the rail trays 9l and 9r is appropriately wide. Compact disc player rail tray to be inserted.