CA1249525A - Disc accommodation tray and disc player employing said disc accommodation tray - Google Patents
Disc accommodation tray and disc player employing said disc accommodation trayInfo
- Publication number
- CA1249525A CA1249525A CA000487241A CA487241A CA1249525A CA 1249525 A CA1249525 A CA 1249525A CA 000487241 A CA000487241 A CA 000487241A CA 487241 A CA487241 A CA 487241A CA 1249525 A CA1249525 A CA 1249525A
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- CA
- Canada
- Prior art keywords
- disc
- recess
- tray
- housing
- main body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Abstract
Abstract:
A disc accommodation tray for use in a disc player has at least one resilient engaging portion for gripping the disc, and a hole or opening. through which a turntable of the player can be inserted. The arrangement enables inserting the tray into the disc player with a disc accommodated in the tray, and similarly dismount the tray from the disc player with the disc in the tray. It also facilitates mounting and dismounting the disc in and from the tray with a minimum risk of damage to the disc.
A disc accommodation tray for use in a disc player has at least one resilient engaging portion for gripping the disc, and a hole or opening. through which a turntable of the player can be inserted. The arrangement enables inserting the tray into the disc player with a disc accommodated in the tray, and similarly dismount the tray from the disc player with the disc in the tray. It also facilitates mounting and dismounting the disc in and from the tray with a minimum risk of damage to the disc.
Description
~.2~5~5 Disc aecommodation tray and disc player employing said disc accommodation tray The present invention relates generally to a signal reproducing arrangement and more particularly to a disc storing or accommodation tray used, for example, in an optical disc system, i.e. a system that employs a recording medium in the form of a disc recorded in information tracks with digital signals at high density. The invention also relates to a disc reproducing apparatus or so-called disc player employing sueh a tray.
disc accommodation tray is employed for video discs on which video signals are recorded, digital audio discs recorded with eoded audio signals, and high density information recording and reproduction discs used in computers and the like.
In such disc systems, coded video signals, audio signals, or various other information signals are recorded on discs in the form of information tracks. With the disc being rotated at high speed light rays emitted from a light source such as a laser are converged onto the information tracks on the disc for reading the reflected light from the disc surface, thereby to reproduce the originally recorded information.
Such a system is capable of greatly increasing the ~2~;i2~
density of the recorded information, thus making it possible to effect recordiny at high density, with high accuracy and high performance, as compared with the conventional analog apparatus.
However, these recorded discs are made of resin ma-terials such as acrylic resin, polycarbonate resin, etc., and can suffer deterioration of performance or even become incapable of reproduction, if flaws or scratches are formed or fingerprints are left on the disc surface. Therefore, disc accommodation trays are required in order to protect the discs against damage or soiling.
To enable the prior art to be described with the aid of a diagram, the figures of the drawings will first be listed.
Fig. 1 is a perspective view showing a conventional disc accommodation tray, together with a disc to be accommodated therein;
Fig. 2 is a perspective view showing an improved disc accommodation tray according to one preferred embodi-ment of the present invention;
Fig~ 3 is a view similar to Fig. 2, particularlyshowing the use of the tray of Fig. 2, together with a disc player;
Fig. 4 is a perspective view showing a disc accom-modation tray according to a modified embodiment of the invention;
Fig. 5 is a fragmentary side sectional view of the tray of Fig. 4~ taken on V-V in Fig. 4, for explaining a clamping function thereof;
Fig. 6 is a view similar to Fig. 5, particularly showing the tray of Fig. 4 in a reproducing posi-tion together with portions of a disc player;
Fig. 7 is a perspective view that shows the use of the modified tray of Fig. 4, toge-ther with a disc player;
and Fig. 8 is a perspective view showing a disc accommodation -tray according to another modified embodiment of the invention.
5i25 In Fig. 1, there is shown a conventional accommodatlon tray 2 together with a disc 1. ~he disc 1 with dimensions of 120 mm in diameter, 15 mm in a cen-tral opening diameter, and 1.2 mm in thickness may be accommodated in the tray 2 by forcing its central opening 4 onto a resilient engaging portion 3 located at a central portion of the tray 2 which is molded of a resin material. Around the outer peripheral edge of the portion 3, there is a circular convex portion 5 for slightly raising the disc 1 so that its surface does not directly contact the corresponding surface of the tray 2.
In this conventional arrangement, however, when the disc 1 is to be mounted on the tray 2, it is necessary to depress with the fingers a portion of the disc in the vicinity of its central portion. On the other hand, when removing the disc 1 from the tray 2, only the outer peripheral por-tion of the disc 1 is normally lifted. However, in this case, detaching may be difficult due to flexing of the peripheral portion of the disc 1. In practice, when detaching the disc 1, it is often necessary to reduce the central grip on the opening 4 by depressing the portion 3 with the finger tips. This is an inconvenient procedure.
Furthermore, there is the problem that the conventional accommodation tray is intended only to store the disc secure against damage. It is not suitable for application to a disc player for reproduction of -the disc, with the disc accommodated in the tray as it is.
Accordingly, an essential object of the present invention is to provide an improved disc acccommodation tray in which attaching and detaching of a disc is facilitated, and which is capable of being mounted in a disc player with a disc accommodated therein, and also of being dismounted from the disc player, still with the disc accommodated therein upon ~ completion of the reproduction process.
; Another important object of the present invention is to provide a disc player into which this disc accommodation tray can readily be mounted.
To this end, the invention consists of a disc accommodation tray comprising a flat main body, a recess formed in the body for receiving a disc therein, and at least one resilient engaging portion located at a peripheral edge portion of said recess for gripping an outer peripheral portion of a disc in said recess.
The invention also consists of the combination of such a tray with a disc player.
Referring now to the drawings, there is shown in Fig. 2 a disc accommodation tray TA according to a preferred embodiment of the present invention, which generally includes a flat main body 6A molded from a resin material, a circular recess 7 being formed in the body 6A and having a diameter generally equal to that of the disc 1 for receiving said disc therein. An annular protrusion 8 is formed at the outer peripheral portion of the recess 7, corresponding to the outermost peripheral portion of the disc 1 where no signals are recorded on the disc. The protrusion 8 provides a low stepped portion for preventing the disc surface from contacting the confronting surface of the recess 7. FGur 20 disc engaging resilient portions 9, 10, 1] and 12 are provided at locations symmetrical with each other for pressing the outer peripheral edge of the disc towards its central portion. An opening 13 is formed at the central portion of the recess 7.
At free ends of the respective portions 9, 10, 11 and 12, there are formed claws 9a, lOa, lla and 12a having angles of inclination opposite to each other, so that during mounting, the disc 1 is forced into the recess 7 ~hile depressing the engaging portions 9 to 12 for expansion along the inclined portions thereof. When the disc 1 has passed over the predetermined inclined portions, lt will be perfectly clamped by the engaging portions 9 through 12.
Since the spaces between the portions 9 and 10 and between the portions 11 and 12 are located at positions on the main body 6A symmetrical to each other, the disc 1 can be readily attached to or detached from the tray TA by merely holding the outer peripheral portion of the disc 1 with one . ~
finger inser-ted be-tween portions 9 and 10 and the thumb between the portions 11 and 12. The diameter of the recess 7 at the peripheral spaces between the portions 9 and 10, and 11 and 12, should preferably be smaller than -the diameter of the disc 1. These peripheral spaces are also utilized for automatically (mechanically) pushing down or pushing up on -the disc 1 to attach it -to or detach it from tray TA when the latter is inserted into a disc player PA (Fig. 3~, with the disc 1 therein.
Although the opening 13 in the central portion of the recess 7 is not necessary when mounting the disc 1, this opening is utilized for directly clamping the disc 1 between a turntable and a disc presser (not shown) for rotation of the disc when the tray TA is in the disc player PA.
More specifically, an optical pick-up 5not shown) for reproducing the disc 1 is disposed in the player PA in a plane above the upper surface of the tray TA as inserted in the player (i.e., a plane confronting the surface of the disc 1), and the disc 1 is raised from the recess 7 of the tray TA
by the turntable and the disc presser against the resilien-t engagement of the portions 9 to 12, so as to be clamped and rotated by the turntable. The information on the disc 1 is then reproduced by the optical pick-up.
Fig. 3 shows one example of such a disc player PA in which the tray TA with the disc 1 therein is inserted into a housing PAh of the player through an insertion slot PAa in one side of the housing.
Referring to Figs. 4 through 6, there is shown a modification TB of the tray TA of Figs. 2 and 3, which is related to a case where the disc 1 iS accommodated in the tray with its signal-recorded surface reversed from that in the embodiment of Figs. 2 and 3. This modification TB differs from the -tray TA in that the central opening 13 of the tray TA is extended into a cut-out portion 14 where the turntable is to be inserted and the optical pick-up observes the disc 1 while approaching close thereto, except for a thin connecting portion 14a provided at one edge of the main body 6B.
Fig. S shows a cross section taken along the line V-V in Fig. 4. The static mounted posltion of the disc 1 is shown in solid lines, while the clamped (playing) position thereof is shown by dotted lines. The functions of the portions 9 to 12 in the tray TB are the same as in the embodiment of Figs. 2 and 3.
Fig. 6 shows the reproduction condition in a disc player PB (Fig. 7). The disc 1 is raised from the recess 7 of the tray TB, and is clamped between the disc presser 18 and the turntable 17 which is rotated by a spindle motor 19.
The optical pick-up 20 will be displaced wi-thin the cut-out portion 14 for reproduction of the disc 1 by a shaft 21.
It is to be noted that the connecting portion 14a at one edge of the main body 6B is provided for maintaining a proper flatness of the tray, and is located at such a position that it will not contact the disc 1 during its rotation; nor will it contact the optical pick-up 20 when moved to the outermost periphery of the disc 1 being reproduced.
As shown in Fig. 7, when the tray TB with the disc 1 mounted therein, is inserted through the port PBa into the housing PBh, the disc 1 will be subjected to reproduction in the manner described with reference to Figs. 5 and 6.
It should be noted that the trays TA and TB are particularly suitable for a dise player to be mounted on motor vehicles, since a tray with a disc mounted therein can be readily inserted into the player during travel of the vehicle without any necessity for directly touching the disc with the fingers. Upon completion of playing, the tray can again be removed from the player. The disc is thus well pro-tected against possible damage or soiling by fingers, etc. However, the present invention is not limited in its application to disc players for use in motor vehicles, but can also be widely applied to home-use disc players, computers, business use apparatus, etc.
Referring to Fig. 8, there is shown another modification TC of the tray TB of Figs. 4 to 7. In the tray TC the portions 9 and 10, and 11 and 12 of the tray TB are replaced by disc engaging portions 24a and 24b located diametrically opposite each other and arranged to grip the disc against up and down movement.
More specifically, in the main body 6C of the tray TC at portions of the recess 7 adjacent the respective portions 24a and 24b, there are elongated openings or slots S
enabling mechanical expansion of the portions 24a and 24b at said slots S during mounting or dismounting of the disc.
Although in the tray TC there might be some difficulty in simply attaching or detaching the disc by the fingers, sueh a strueture is still effeetive as a tray intended mainly for meehanieally mounting or dismounting thë dise within the dise player. The other eonstruetions and funetions of the tray TC
are generally similar to those of the tray TB in Figs. 4 to 7.
It should be noted that although in the foregoing embodiment and modifieations the dise engaging portions are deseribed as provided in at least one pair at loeations symmetrieal with respeet to eaeh other in the diametrieal direetion of the dise, sueh engaging portions are not limited in eonfiguration or number to the above. Even a single sueh engaging portion ean be used as long as the dise can be effectively gripped thereby.
disc accommodation tray is employed for video discs on which video signals are recorded, digital audio discs recorded with eoded audio signals, and high density information recording and reproduction discs used in computers and the like.
In such disc systems, coded video signals, audio signals, or various other information signals are recorded on discs in the form of information tracks. With the disc being rotated at high speed light rays emitted from a light source such as a laser are converged onto the information tracks on the disc for reading the reflected light from the disc surface, thereby to reproduce the originally recorded information.
Such a system is capable of greatly increasing the ~2~;i2~
density of the recorded information, thus making it possible to effect recordiny at high density, with high accuracy and high performance, as compared with the conventional analog apparatus.
However, these recorded discs are made of resin ma-terials such as acrylic resin, polycarbonate resin, etc., and can suffer deterioration of performance or even become incapable of reproduction, if flaws or scratches are formed or fingerprints are left on the disc surface. Therefore, disc accommodation trays are required in order to protect the discs against damage or soiling.
To enable the prior art to be described with the aid of a diagram, the figures of the drawings will first be listed.
Fig. 1 is a perspective view showing a conventional disc accommodation tray, together with a disc to be accommodated therein;
Fig. 2 is a perspective view showing an improved disc accommodation tray according to one preferred embodi-ment of the present invention;
Fig~ 3 is a view similar to Fig. 2, particularlyshowing the use of the tray of Fig. 2, together with a disc player;
Fig. 4 is a perspective view showing a disc accom-modation tray according to a modified embodiment of the invention;
Fig. 5 is a fragmentary side sectional view of the tray of Fig. 4~ taken on V-V in Fig. 4, for explaining a clamping function thereof;
Fig. 6 is a view similar to Fig. 5, particularly showing the tray of Fig. 4 in a reproducing posi-tion together with portions of a disc player;
Fig. 7 is a perspective view that shows the use of the modified tray of Fig. 4, toge-ther with a disc player;
and Fig. 8 is a perspective view showing a disc accommodation -tray according to another modified embodiment of the invention.
5i25 In Fig. 1, there is shown a conventional accommodatlon tray 2 together with a disc 1. ~he disc 1 with dimensions of 120 mm in diameter, 15 mm in a cen-tral opening diameter, and 1.2 mm in thickness may be accommodated in the tray 2 by forcing its central opening 4 onto a resilient engaging portion 3 located at a central portion of the tray 2 which is molded of a resin material. Around the outer peripheral edge of the portion 3, there is a circular convex portion 5 for slightly raising the disc 1 so that its surface does not directly contact the corresponding surface of the tray 2.
In this conventional arrangement, however, when the disc 1 is to be mounted on the tray 2, it is necessary to depress with the fingers a portion of the disc in the vicinity of its central portion. On the other hand, when removing the disc 1 from the tray 2, only the outer peripheral por-tion of the disc 1 is normally lifted. However, in this case, detaching may be difficult due to flexing of the peripheral portion of the disc 1. In practice, when detaching the disc 1, it is often necessary to reduce the central grip on the opening 4 by depressing the portion 3 with the finger tips. This is an inconvenient procedure.
Furthermore, there is the problem that the conventional accommodation tray is intended only to store the disc secure against damage. It is not suitable for application to a disc player for reproduction of -the disc, with the disc accommodated in the tray as it is.
Accordingly, an essential object of the present invention is to provide an improved disc acccommodation tray in which attaching and detaching of a disc is facilitated, and which is capable of being mounted in a disc player with a disc accommodated therein, and also of being dismounted from the disc player, still with the disc accommodated therein upon ~ completion of the reproduction process.
; Another important object of the present invention is to provide a disc player into which this disc accommodation tray can readily be mounted.
To this end, the invention consists of a disc accommodation tray comprising a flat main body, a recess formed in the body for receiving a disc therein, and at least one resilient engaging portion located at a peripheral edge portion of said recess for gripping an outer peripheral portion of a disc in said recess.
The invention also consists of the combination of such a tray with a disc player.
Referring now to the drawings, there is shown in Fig. 2 a disc accommodation tray TA according to a preferred embodiment of the present invention, which generally includes a flat main body 6A molded from a resin material, a circular recess 7 being formed in the body 6A and having a diameter generally equal to that of the disc 1 for receiving said disc therein. An annular protrusion 8 is formed at the outer peripheral portion of the recess 7, corresponding to the outermost peripheral portion of the disc 1 where no signals are recorded on the disc. The protrusion 8 provides a low stepped portion for preventing the disc surface from contacting the confronting surface of the recess 7. FGur 20 disc engaging resilient portions 9, 10, 1] and 12 are provided at locations symmetrical with each other for pressing the outer peripheral edge of the disc towards its central portion. An opening 13 is formed at the central portion of the recess 7.
At free ends of the respective portions 9, 10, 11 and 12, there are formed claws 9a, lOa, lla and 12a having angles of inclination opposite to each other, so that during mounting, the disc 1 is forced into the recess 7 ~hile depressing the engaging portions 9 to 12 for expansion along the inclined portions thereof. When the disc 1 has passed over the predetermined inclined portions, lt will be perfectly clamped by the engaging portions 9 through 12.
Since the spaces between the portions 9 and 10 and between the portions 11 and 12 are located at positions on the main body 6A symmetrical to each other, the disc 1 can be readily attached to or detached from the tray TA by merely holding the outer peripheral portion of the disc 1 with one . ~
finger inser-ted be-tween portions 9 and 10 and the thumb between the portions 11 and 12. The diameter of the recess 7 at the peripheral spaces between the portions 9 and 10, and 11 and 12, should preferably be smaller than -the diameter of the disc 1. These peripheral spaces are also utilized for automatically (mechanically) pushing down or pushing up on -the disc 1 to attach it -to or detach it from tray TA when the latter is inserted into a disc player PA (Fig. 3~, with the disc 1 therein.
Although the opening 13 in the central portion of the recess 7 is not necessary when mounting the disc 1, this opening is utilized for directly clamping the disc 1 between a turntable and a disc presser (not shown) for rotation of the disc when the tray TA is in the disc player PA.
More specifically, an optical pick-up 5not shown) for reproducing the disc 1 is disposed in the player PA in a plane above the upper surface of the tray TA as inserted in the player (i.e., a plane confronting the surface of the disc 1), and the disc 1 is raised from the recess 7 of the tray TA
by the turntable and the disc presser against the resilien-t engagement of the portions 9 to 12, so as to be clamped and rotated by the turntable. The information on the disc 1 is then reproduced by the optical pick-up.
Fig. 3 shows one example of such a disc player PA in which the tray TA with the disc 1 therein is inserted into a housing PAh of the player through an insertion slot PAa in one side of the housing.
Referring to Figs. 4 through 6, there is shown a modification TB of the tray TA of Figs. 2 and 3, which is related to a case where the disc 1 iS accommodated in the tray with its signal-recorded surface reversed from that in the embodiment of Figs. 2 and 3. This modification TB differs from the -tray TA in that the central opening 13 of the tray TA is extended into a cut-out portion 14 where the turntable is to be inserted and the optical pick-up observes the disc 1 while approaching close thereto, except for a thin connecting portion 14a provided at one edge of the main body 6B.
Fig. S shows a cross section taken along the line V-V in Fig. 4. The static mounted posltion of the disc 1 is shown in solid lines, while the clamped (playing) position thereof is shown by dotted lines. The functions of the portions 9 to 12 in the tray TB are the same as in the embodiment of Figs. 2 and 3.
Fig. 6 shows the reproduction condition in a disc player PB (Fig. 7). The disc 1 is raised from the recess 7 of the tray TB, and is clamped between the disc presser 18 and the turntable 17 which is rotated by a spindle motor 19.
The optical pick-up 20 will be displaced wi-thin the cut-out portion 14 for reproduction of the disc 1 by a shaft 21.
It is to be noted that the connecting portion 14a at one edge of the main body 6B is provided for maintaining a proper flatness of the tray, and is located at such a position that it will not contact the disc 1 during its rotation; nor will it contact the optical pick-up 20 when moved to the outermost periphery of the disc 1 being reproduced.
As shown in Fig. 7, when the tray TB with the disc 1 mounted therein, is inserted through the port PBa into the housing PBh, the disc 1 will be subjected to reproduction in the manner described with reference to Figs. 5 and 6.
It should be noted that the trays TA and TB are particularly suitable for a dise player to be mounted on motor vehicles, since a tray with a disc mounted therein can be readily inserted into the player during travel of the vehicle without any necessity for directly touching the disc with the fingers. Upon completion of playing, the tray can again be removed from the player. The disc is thus well pro-tected against possible damage or soiling by fingers, etc. However, the present invention is not limited in its application to disc players for use in motor vehicles, but can also be widely applied to home-use disc players, computers, business use apparatus, etc.
Referring to Fig. 8, there is shown another modification TC of the tray TB of Figs. 4 to 7. In the tray TC the portions 9 and 10, and 11 and 12 of the tray TB are replaced by disc engaging portions 24a and 24b located diametrically opposite each other and arranged to grip the disc against up and down movement.
More specifically, in the main body 6C of the tray TC at portions of the recess 7 adjacent the respective portions 24a and 24b, there are elongated openings or slots S
enabling mechanical expansion of the portions 24a and 24b at said slots S during mounting or dismounting of the disc.
Although in the tray TC there might be some difficulty in simply attaching or detaching the disc by the fingers, sueh a strueture is still effeetive as a tray intended mainly for meehanieally mounting or dismounting thë dise within the dise player. The other eonstruetions and funetions of the tray TC
are generally similar to those of the tray TB in Figs. 4 to 7.
It should be noted that although in the foregoing embodiment and modifieations the dise engaging portions are deseribed as provided in at least one pair at loeations symmetrieal with respeet to eaeh other in the diametrieal direetion of the dise, sueh engaging portions are not limited in eonfiguration or number to the above. Even a single sueh engaging portion ean be used as long as the dise can be effectively gripped thereby.
Claims (6)
1. A disc accommodation tray for accommodating a disc, said tray comprising:
a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted; and at least one resilient engaging portion integral with and extending from said main body toward the center of said recess for maintaining the disc within the recess when it is inserted in said recess, of said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces each of said at least one resilient engaging portion in said plane in a direction away from said recess.
a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted; and at least one resilient engaging portion integral with and extending from said main body toward the center of said recess for maintaining the disc within the recess when it is inserted in said recess, of said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces each of said at least one resilient engaging portion in said plane in a direction away from said recess.
2. A disc accommodation tray as claimed in claim 1, wherein said main body has an opening therethrough at a central portion of said recess.
3. A disc player comprising:
a housing, said housing having an insertion port at one side thereof;
a disc accommodation tray for accommodating a disc, said tray being insertable through said insertion port into said housing;
said tray comprising a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted, and at least one resilient engaging portion integral with and extending from said main body toward the center of said recess for maintaining the disc within the recess when it is inserted in said recess, said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces each of said at least one resilient engagement portions in said plane in a direction away from said recess;
a rotatable turntable in said housing adjacent said opening in said accommodation tray when the tray is inserted through said insertion port into said housing, said turntable being movable in a direction toward and away from said opening for moving through said opening when said accommodation tray accommodating a disc is inserted into said housing to raise the disc out of said central recess, and said turntable having drive means for rotating said rotatable turntable to rotate said disc after said turntable raises the disc out of said recess;
and a pick-up head in said housing for picking up recorded information on the disc when the disc is rotated by said turntable.
a housing, said housing having an insertion port at one side thereof;
a disc accommodation tray for accommodating a disc, said tray being insertable through said insertion port into said housing;
said tray comprising a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted, and at least one resilient engaging portion integral with and extending from said main body toward the center of said recess for maintaining the disc within the recess when it is inserted in said recess, said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces each of said at least one resilient engagement portions in said plane in a direction away from said recess;
a rotatable turntable in said housing adjacent said opening in said accommodation tray when the tray is inserted through said insertion port into said housing, said turntable being movable in a direction toward and away from said opening for moving through said opening when said accommodation tray accommodating a disc is inserted into said housing to raise the disc out of said central recess, and said turntable having drive means for rotating said rotatable turntable to rotate said disc after said turntable raises the disc out of said recess;
and a pick-up head in said housing for picking up recorded information on the disc when the disc is rotated by said turntable.
4. A disc accommodation tray for accommodating a disc, said tray comprising:
a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted, said main body having a slot therethrough extending between a substantial portion of said recess and a portion along the periphery of said recess; and at least one resilient engaging portion integral with and extending from said main body for maintaining the disc within the recess when it is inserted in said recess, said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces said at least one resilient engagement portions in said plane in a direction away from said recess.
a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted, said main body having a slot therethrough extending between a substantial portion of said recess and a portion along the periphery of said recess; and at least one resilient engaging portion integral with and extending from said main body for maintaining the disc within the recess when it is inserted in said recess, said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces said at least one resilient engagement portions in said plane in a direction away from said recess.
5. A disc player comprising:
a housing, said housing having an insertion port at one side thereof;
a disc accommodation tray for accommodating a disc, said tray being insertable through said insertion port into said housing, said tray comprising a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted, said main body having a slot therethrough extending between a central portion of said recess and a portion of the periphery of said recess, and at least one resilient engaging portion integral with and extending from said main body for maintaining the disc within the recess when it is inserted in said recess said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces each of said at least one resilient engage-ment portions in said plane in a direction away from said recess;
a rotatable turntable in said housing adjacent said slot at said central portion of said recess when the tray is inserted through said insertion port into said housing, said turntable being movable in a direction toward and away from said slot for moving through said slot when said accommodation tray accommodating a disc is inserted into said housing to raise the disc out of said central recess, and said turntable having drive means for rotating said turntable to rotate said disc after said turntable raises said disc out of said recess; and a pick-up head in said housing for picking up recorded information on the disc when the disc is rotated by said turntable.
a housing, said housing having an insertion port at one side thereof;
a disc accommodation tray for accommodating a disc, said tray being insertable through said insertion port into said housing, said tray comprising a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted, said main body having a slot therethrough extending between a central portion of said recess and a portion of the periphery of said recess, and at least one resilient engaging portion integral with and extending from said main body for maintaining the disc within the recess when it is inserted in said recess said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface;
whereby when the disc is inserted into said recess, the disc displaces each of said at least one resilient engage-ment portions in said plane in a direction away from said recess;
a rotatable turntable in said housing adjacent said slot at said central portion of said recess when the tray is inserted through said insertion port into said housing, said turntable being movable in a direction toward and away from said slot for moving through said slot when said accommodation tray accommodating a disc is inserted into said housing to raise the disc out of said central recess, and said turntable having drive means for rotating said turntable to rotate said disc after said turntable raises said disc out of said recess; and a pick-up head in said housing for picking up recorded information on the disc when the disc is rotated by said turntable.
6. A disc accommodation tray for accommodating a disc, said tray comprising:
a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted; and at least one resilient engaging portion integral with and extending from said main body toward the center of said recess for maintaining the disc within the recess when it is inserted in said recess, said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface, and said at least one engaging portion having a disc engaging surface inclined downward and toward the center of said recess;
whereby when the disc is inserted into said recess, the disc contacts said disc engaging surface of said at least one resilient engaging portion to displace said resilient engaging portion in said plane in a direction away from said recess.
a substantially flat one piece main body having a central recess in a surface thereof in which the disc accommodated by the tray is inserted; and at least one resilient engaging portion integral with and extending from said main body toward the center of said recess for maintaining the disc within the recess when it is inserted in said recess, said at least one engaging portion being resiliently displacable in a plane extending substantially parallel to said surface, and said at least one engaging portion having a disc engaging surface inclined downward and toward the center of said recess;
whereby when the disc is inserted into said recess, the disc contacts said disc engaging surface of said at least one resilient engaging portion to displace said resilient engaging portion in said plane in a direction away from said recess.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP152443/1984 | 1984-07-23 | ||
| JP152445/1984 | 1984-07-23 | ||
| JP24431984A JPS60133091A (en) | 1983-11-18 | 1984-11-19 | Gasification and apparatus for coal or like |
| JP24451984A JPS61124570A (en) | 1984-11-21 | 1984-11-21 | Vapor depositing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1249525A true CA1249525A (en) | 1989-01-31 |
Family
ID=26536687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000487241A Expired CA1249525A (en) | 1984-07-23 | 1985-07-22 | Disc accommodation tray and disc player employing said disc accommodation tray |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1249525A (en) |
-
1985
- 1985-07-22 CA CA000487241A patent/CA1249525A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |