US20010017835A1 - Disc transfer mechanism - Google Patents
Disc transfer mechanism Download PDFInfo
- Publication number
- US20010017835A1 US20010017835A1 US09/238,591 US23859199A US2001017835A1 US 20010017835 A1 US20010017835 A1 US 20010017835A1 US 23859199 A US23859199 A US 23859199A US 2001017835 A1 US2001017835 A1 US 2001017835A1
- Authority
- US
- United States
- Prior art keywords
- tray
- disc
- base
- turntable
- spring
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
- G11B17/02—Details
- G11B17/04—Feeding or guiding single record carrier to or from transducer unit
- G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
- G11B17/053—Indirect insertion, i.e. with external loading means
- G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
Abstract
It is an object of he present invention to provide a disc transfer mechanism that allows a disc to be reliably installed and removed. As shown in FIG. 3, this invention includes a damper means provided between a base (2) and a tray (1) to reduce the moving speed of the tray (1) using the urging force of a spring (3). The damper means comprises a first damper (45) interposed between the tray (1) and the base (2) to reduce the tray moving speed during all the tray moving steps and a second damper that operates, separately from the first damper (45), during the step of delivering a disc set on a turntable to the tray.
Description
- The present invention relates to a disc transfer mechanism having a tray used to install and eject a disc.
- The disc transfer mechanism described in Japanese Patent Application Laid-Open No. 63-191361 has a tray that moves in the horizontal direction between a disc installation and removal position at which a disc has been drawn out from the apparatus and a position at which the disc has been drawn into the apparatus body; and a disc holder provided on the tray and on which the disc is placed.
- The apparatus body additionally includes a turntable that rotationally drives the disc, a damper that sandwiches the disc between itself and the turntable, an optical pickup, and a traverse mechanism for moving the optical pickup in the radial direction of the disc.
- The tray and the disc holder have such a relation as to be configured so that the tray moves in the horizontal direction to lead the central hole of the disc placed on the disc holder to a position immediately before the turntable, and so that when the tray further moves in the same direction toward the internal end, the disc holder starts descending toward the turntable and loads the disc on the turntable provided on a fixed side so that the disc is sandwiched by the turntable and the clamper.
- In addition, Japanese Patent Application Laid-Open No. 63-191361 uses the urging force of a spring to push out the tray in order to eject the disc and includes a damper to prevent the tray from being rapidly pushed out by this urging force.
- Despite the reduced speed at which the tray is pushed out, such a disc transfer mechanism is likely to fail to deliver the disc removed from the
turntable 9 to a normal position of the tray, so the installation and removal of the disc are not so reliable. - It is an object of the present invention to provide a disc transfer mechanism in which the configuration of the tray to be moved is simple and in which the installation and removal of the disc are reliable even if an urging force of a spring is used to push back the tray.
- A disc transfer mechanism according to this invention is characterized in that a damper means for reducing the tray moving speed comprises a first damper interposed between a tray and a base that supports the tray in the direction in which the tray is drawn out and back, in order to reduce the tray moving speed during all the steps in which the tray is moved by the urging force of a spring; and a second damper that operates during the step of delivering the disc set on the turntable to the tray.
- This configuration can provide a disc transfer mechanism that can install and remove the disc reliably.
- According to the disc transfer mechanism as set forth in
claim 1 of this invention, there is provided a disc transfer mechanism for setting on a turntable a disc placed on a tray in response to the drawing-out and -back of the tray, comprising: a spring provided between the tray and a base that supports the tray in the direction in which the tray is drawn out and back, in order to urge the tray in the direction in which it is pushed out from the base; and a damper means provided between the base and the tray for reducing the speed of the tray movement effected by the urging force of the spring; the damper means comprising a first damper interposed between the tray and the base to reduce the tray moving speed during all the steps in which the tray is moved by the urging force of the spring, and a second damper that operates during the step of delivering the disc set on the turntable to the tray. Thus, when a disc ejecting operation is started, the tray and an elevating mechanism can be operated slowly and stably. - The disc transfer mechanism set forth in
claim 2 of this invention comprises: an elevating mechanism for elevating and lowering a turntable in response to the drawing-out and -back of a tray to allow the turntable to be installed on and removed from a disc placed on the tray; a disc receiving member provided at the front end of the tray and adapted to freely slide in the direction in which the tray is drawn out and back, and having a positioning protrusion that can abut on the outer circumference of the disc being loaded while said disc receiving member is urged toward the internal end of the tray; the disc receiving member being arranged to abut on the fixed side when the central hole of the disc placed on the tray reaches a position over said turntable and to move toward the front end of the tray relative to the movement of the tray toward its internal end; a spring provided between the tray and the base that supports the tray in the direction in which the tray is drawn out and back, in order to urge the tray in the direction in which it is pushed out from the base; and a damper means provided between the base and the tray in order to reduce the speed of the tray movement effected by the urging force of the spring; the damper means comprising a first damper interposed between the tray and the base to reduce the tray moving speed during all the steps in which the tray is moved by the urging force of the spring, and a second damper provided between the base that supports the tray in the direction in which the tray is drawn out and back and an elevating mechanism for elevating and lowering the turntable in response to the drawing-out and -back of the tray, in order to operate during the step of delivering the disc set on the turntable to the tray. Thus, by simply providing in the tray a disc receiving member of a simple configuration, the disc can be installed and removed stably as in conventional mechanisms having a tray of a complicated configuration. Moreover, the spring for urging the tray in the direction in which it is pushed out from the base is provided between the tray and the base that supports the tray in the direction in which it is drawn out and back and since the damper means for reducing the speed of the tray movement effected by urging force of the spring is provided between the base and the tray. Consequently, despite the ejection of the disc using the urging force of the spring, the disc can be reliably delivered to the tray from the turntable in such a way as to maintain the correct posture. - The disc transfer mechanism set forth in
claim 3 comprises: an elevating mechanism for elevating and lowering a turntable in response to the drawing-out and -back of a tray to allow the turntable to be installed on and removed from a disc placed on the tray; a disc receiving member provided at the front end of the tray and adapted to freely slide in the direction in which the tray is drawn out and back, and having a positioning protrusion that can abut on the outer circumference of the disc being loaded while said disc receiving member is urged toward the internal end of the tray; said disc receiving member being arranged to abut on the fixed side when the central hole of the disc placed on the tray reaches a position over said turntable, and to move toward the front end of the tray relative to the movement of the tray toward its internal end; a spring provided between said tray and the base that supports said tray in the direction in which it is drawn out and back, in order to urge said tray in the direction in which it is pushed out from the base; and a damper means provided between the base and said tray in order to reduce the speed of the tray movement effected by the urging force of the spring; said damper means comprising: a first damper attached to the base that supports the tray in the direction in which the tray is drawn out and back, and engaging with a first rack formed to extend from the front end to internal end of said tray; and a second damper attached to said base and engaging with a second rack formed only at the front end of the tray. Thus, when the ejection of the disc is started, the tray and the elevating mechanism can be operated slowly and stably. - According to the disc transfer mechanism set forth in claims4 and 5, the spring for urging the tray in the direction in which it is pushed out from the base is provided on the top surface of the base and in a tray moving path, such that the spring extends along a path bent around rollers provided on the base. As a result, this mechanism can be compactified compared to conventional apparatuses wherein the spring is provided outside the tray moving path. In addition, this mechanism allows the use of a longer spring than in the prior art.
- FIG. 1 is a perspective view showing a state in which a tray has been drawn out from a transfer mechanism according to an embodiment of this invention;
- FIG. 2 is a perspective view showing a state in which the tray has been pushed back according to the same embodiment;
- FIG. 3 is an exploded perspective view showing a state in which the tray has been removed from the base according to the same embodiment;
- FIG. 4 is a perspective view showing the disc transfer mechanism according to the same embodiment as seen from the rear (the internal end) side;
- FIG. 5 is an exploded perspective view of the entire disc transfer mechanism according to the same embodiment;
- FIG. 6 is a plan view of the neighborhood of a coupling lever during a loading process according to the same embodiment;
- FIG. 7 is a plan view of the bottom surface of the front end portion of the tray according to the same embodiment;
- FIG. 8 is a sectional view showing the relationship between the tray, a disc and a turntable observed while a large-diameter disc is being loaded according to the same embodiment;
- FIG. 9 is a plan view of the tray according to the same embodiment;
- FIG. 10 is a sectional view showing the relationship between the tray, the disc and the turntable observed while a small-diameter disc is being loaded according to the same embodiment;
- FIG. 11 is an exploded perspective view of the integral part of another embodiment; and
- FIG. 12 is an exploded perspective view of the integral part of yet another embodiment.
- Embodiments of this invention will be described below with reference to FIGS.1 to 12.
- FIG. 1 shows a disc transfer mechanism in a disc installation and removal position in which a
tray 1 has been drawn out from abase 2. FIG. 2 shows a state in which thetray 1 has moved in the horizontal direction to a loading completion position. - In the disc transfer mechanism according to this embodiment, instead of using a motor, a
tension spring 3 is passed between a spring engaging locking portion 4 of thebase 2 and a spring engaging locking portion 5 formed on the bottom surface of the internal end portion of thetray 1 in order to drive thetray 1, as shown in FIG. 3. The middle portion of thetension spring 3 passes throughgrooved rollers base 2. - A
damper gear 45 used as a first damper is attached to a shaft 44 formed at the front end of thebase 2, with the teeth of thedamper gear 45 meshing with arack 46 formed in the bottom surface of thetray 1 in such a way as to extend from its front end to internal end. A highly viscous grease is applied to the shaft 44. -
Reference numeral 8 denotes a playing apparatus that is a unit composed of aturntable 9 rotationally driving a disc, anoptical pickup 10, and a traverse mechanism (not shown) for moving the optical pickup in the radial direction of the disc. - As shown in FIGS. 4 and 5,
sliders base 2 at positions covered by thetray 1 so as to slide in the direction in which thetray 1 is drawn out and back. The internal ends of thesliders coupling lever 13 having its center pivotably supported on ashaft 12 of thebase 2. Aspring 15 installed between thecoupling lever 13 and aprotrusion 14 from thebase 2 urges thecoupling lever 13 in such a way as to push theslider 11 a toward the front end of the base 2 (the direction shown by arrow A) and draw theslider 11 b toward the internal end of the base 2 (the direction shown by arrow B). - A
cam groove 16 a is formed in a part of the inside of theslider 11 a and close to its front end.Cam grooves 16 b and 16 c are formed inside theslider 11 b and close to its front and internal ends, respectively. Thecam grooves 16 a and 16 b extend in opposite directions, while thecam grooves 16 b and 16 c extend in the same direction. -
Horizontal shafts apparatus 8 and engage withvertical grooves 19 inguides base 2 to support the playingapparatus 8 over thebase 2 so as to elevate and lower it. The tips of thehorizontal shafts 17 a to 17 c engage with thecam grooves 16 a to 16 c. - When the
tray 1 is pushed toward the internal end of thebase 2 against the urging force of thetension spring 3, this configuration allows thesliders - Specifically, when the
tray 1 is pushed toward the internal end, aprotrusion 20 formed on the bottom surface of thetray 1 shown in FIG. 6(a) starts to engage anengaging portion 21 of theslider 11 a as shown in FIG. 6(b). When thetray 1 is further pushed in, theslider 11 a slide toward the internal end (the direction shown by arrow B) while theslider 11 b slide toward the front end (the direction shown by arrow A), as shown in FIG. 6(c). As thesliders tray 1, the housing of the playingapparatus 8 moves from a lowered position to an elevated position. - As shown in FIG. 5, a
slide hole 22 is drilled at the front end of thetray 1. Aprotrusion 24 formed on the bottom surface of adisc receiving member 23 is inserted into theslide hole 22, and aspring 25 is installed on the bottom surface of thetray 1 between thetray 1 and theprotrusion 24 of thedisc receiving member 23 as shown in FIG. 7 to urge thedisc receiving member 23 toward the internal end of thetray 1. - When the
tray 1 reaches the internal end, alock claw 27 formed on anoperation lever 50 urged by aspring 26 provided on thebase 2 is engaged with and locked by anengaging portion 28 provided at the front end of thetray 1. When theoperation lever 50 is operated to rotationally move thelock claw 27 against the urging force of thespring 26, thelock claw 27 is disengaged from theengaging portion 28 and thetray 1 returns to the disc installation and removal position due to the urging force of atension spring 13. In this case, the housing of the playingapparatus 8 moves from the elevated position to the lowered position. - In addition, as shown in FIG. 5, a damper gear48 used as a second damper is attached to a
shaft 47 formed at the internal end of thebase 2, with the teeth of the damper gear 48 meshing with arack 49 formed only at the internal end of theslider 11 a. A highly viscous grease is applied to theshaft 47. - The mechanisms for moving the
tray 1 in the horizontal direction relative to thebase 2 and for elevating and lowering the playingapparatus 8 in response to this horizontal movement are configured as described above. Thetray 1 is further configured as follows. - As shown in FIG. 1, the
tray 1 includes a large-diameter-disc receiving portion 29 and a small-diameter-disc receiving portion 32 formed in the large-diameter-disc receiving portion 29 and having a receivingsurface 31 lower than a large-small-diameter-disc receiving surface 30. Furthermore, A large- and small-diameter-disc positioning protrusions disc receiving member 23 slidably provided at the front end of thetray 1. - FIG. 8 shows a process for loading a large-
diameter disc 34. Thecam grooves - In FIG. 8(a), the large-
diameter disc 34 is placed on thetray 1 drawn to the disc installation and removal position. At this point, the large-diameter disc 34 is placed in the inside defined by the large-diameter-disc positioning protrusion 33 a and large-diameter-disc receiving portion 29 of thedisc receiving member 23. - When the
tray 1 is pushed in against thetension spring 3 until itsprotrusion 20 abuts on the engagingportion 21 of theslider 11 a, and thetray 1 is further pushed in toward the internal end. Then, in response to the horizontal movement of thetray 1 toward the internal end, theslider 11 a slides toward the internal end, while theslider 11 b slides toward the front end, thereby causing theplaying apparatus 8 to start elevating. - As shown in FIGS.8(b) to (c), the moment the
central hole 35 of the large-diameter disc placed on thetray 1 reaches a position over theturntable 9, theprotrusion 24 of thedisc receiving member 23 abuts on an engagingpiece 36 of thebase 2. Then, when thetray 1 is further pushed in toward the internal end, the relative position between thedisc receiving member 23 and thetray 1 changes against the urging force of thespring 25, as shown in FIG. 8(d). - That is, until the
central hole 35 of the large-diameter disc starts to engage with theturntable 9, thepositioning protrusion 33 a of thedisc receiving member 23 accurately holds the large-diameter disc 34 on thetray 1 so as not to shift. When theturntable 9 starts to engage with thecentral hole 35 of the large-diameter disc 35, theprotrusion 24 of thedisc receiving member 23 rests at the same position as in FIG. 8(c) while abutting on the engagingpiece 36, whereas only thetray 1 slides toward the internal end, with the relative relationship between the large-diameter disc 34 and thepositioning protrusion 33 a of thedisc receiving member 23 remains unchanged. In these stable conditions, the insertion of theturntable 9 into thecentral hole 35 of the large-diameter disc is completed as shown in FIG. 8(d). - When in FIG. 8(d), the
tray 1 is further pushed in toward the internal end, theplaying apparatus 8 further elevates to allow theturntable 9 to lift the large-diameter disc 34 from the top surface of thetray 1, and thedamper 37 and theturntable 9 sandwiches the large-diameter disc 34 therebetween to rotationally drive it, as shown in FIG. 8(e). - The terminals of the
cam grooves tray 1 continues horizontal movement toward the internal end for a short period of time after thedamper 37 and theturntable 9 sandwiches the large-diameter disc 34 therebetween, - To remove the large-
diameter disc 34, theoperation lever 50 is operated to disengage thelock claw 27 from the engagingportion 28 of thetray 1 to return thetray 1 to the disc installation and removal position due to the urging force of thetension spring 13. This process is executed in the opposite direction from FIG. 6(d) to 6(a). - Specifically, in FIG. 6(d) in which loading has been completed, a
protrusion 51 formed on thecoupling lever 13 engages with aprotrusion 52 formed on the bottom surface of thetray 1. Theoperation lever 50 is operated to disengage thelock claw 27 from the engagingportion 28 of thetray 1. Then, using as a power source the force of thespring 15 urging thecoupling lever 13 as shown in FIG. 6(a) and the force of thetension spring 3 urging thetray 1, thetray 1 starts slow movement while being decelerated by the damper force of the damper gears 48 and 45, until theprotrusion 51 is disengaged from theprotrusion 52. In this case, the slow sliding movement of thesliders playing apparatus 8 to slowly lower, thereby ensuring that the large-diameter disc 34 can be delivered to thetray 1 from theturntable 9 while maintaining the correct posture. - When the large-
diameter disc 34 passes through the position at which it is delivered to thetray 1 while maintaining the correct posture and theprotrusion 52 is disengaged from theprotrusion 51, the damper gear 48 subsequently stops acting on the transfer system for thetray 1. Thus, using the urging force of thetension spring 3, thetray 1 is pushed out to the position shown in FIG. 1 while being decelerated by thedamper gear 45. - Although the relative relationship between the
tray 1 and thedisc receiving member 23 and theturntable 9 that can stably load the large-diameter disc 34 has been described above, this invention is also configured as follows to enable a small-diameter disc to be loaded stably. - In the
tray 1, the small-diameter-disc placement surface 31 is formed below the large-diameter-disc placement surface 30. The timings with which thetray 1 is drawn out and back and with which theplaying apparatus 8 elevates and lowers are the same for both the large- and small-diameter disc. - If the
center 38 of the small-diameter-disc receiving portion 32 is identical to thecenter 39 of the large-diameter-disc receiving portion 29, the difference in the height of the discs causes thetray 1 to shift between the position at which the bottom surface of small-diameter disc aligns with the top surface of theturntable 9 and the position at which the turntable surface aligns with the bottom surface of the small-diameter disc. Accordingly, the center of theturntable 9 fails to align with a center hole of the disc, thereby precluding the small-diameter disc from being loaded stably. - Thus, as shown in FIG. 9, this embodiment is formed in such a way that the
center 38 of the small-diameter-disc receiving portion 32 is located closer to the internal end than thecenter 39 of the large-diameter-disc receiving portion 29 to enable the small-diameter disc to be loaded stably. - By offsetting the
centers disc receiving portions turntable 9 aligns with the central hole of the disc despite the movement of thetray 1, thereby enabling stable loading. - FIGS.10(a) to (e) show a process for loading a small-
diameter disc 40 and correspond to the process for loading the large-diameter disc 34, which is shown in FIGS. 8(a) to (e). - In FIG. 10(a), a receiving
portion 33 b of thedisc receiving member 23 positions the front surface of the small-diameter disc 40, while astep 41 between the large- and small-diameter-disc placement surfaces 30 and 31 of thetray 1 positions its rear surface. - Next, the
playing apparatus 8 starts to elevate as shown in FIG. 10(b). - Since the small-
diameter disc 40 is located below the large-diameter disc 34, thecentral hole 42 of the small-diameter disc 40 aligns with the center of theturntable 9 before the position shown in FIG. 8(c) is reached, as shown in FIG. 10(c). Theplaying apparatus 8 slightly elevates to align the bottom surface of the small-diameter disc 40 with the top surface of theturntable 9. - The
tray 1 moves between the position shown in FIG. 10(c) and the position shown in FIG. 8(c), so thecenter 38 of the small-diameter-disc receiving surface 31 is correspondingly located closer to the internal end of thetray 1 than thecenter 39 of the large-diameterdisc receiving surface 30. - In addition, the
protrusion 24 of thedisc receiving member 23 abuts on the engagingpiece 36 of thebase 2. Then, when thetray 1 is further pushed in toward the internal end, the relative position between thedisc receiving member 23 and thetray 1 changes against the urging force of thespring 25, as shown in FIG. 10(d). Consequently, the position of thedisc receiving member 23 remains unchanged despite the further pushing-in of thetray 1. - The position in FIG. 8(c) is only a passing point for the small-
diameter disc 40. This is also applicable to the position for the large-diameter disc in FIG. 8(d). Since the small-diameter disc is located below the large-diameter disc, the position at which theturntable 9 is located under the bottom surface of the small-diameter disc 40 before the position in FIG. 8(d) is reached. Again, the centers are prevented from mutual offset because the position of the disc receiving surface remains unchanged. - Furthermore, at the position in FIG. 10(e), the
damper 37 sandwiches the small-diameter disc 40 to enable it to be played. - The ejection process is similarly executed in the reverse order, and despite its movement during the lowering of the
turntable 9 between FIGS. 10(e) and (d), thetray 1 can be returned to a predetermined position because the position of the disc receiving surface remains unchanged. In addition, in the process for ejecting the small-diameter disc, thetray 1 starts to move slowly due to the large damper force of the damper gears 48 and 45, thereby ensuring that the small-diameter disc 40 can be reliably delivered to thetray 1 from theturntable 9 in such a way that the disc maintains the correct posture. - As described above, the centers of the large- and small-diameter-disc receiving surfaces are mutually offset to allow the center of the
turntable 9 to align with the central hole of the disc for operation despite the movement of the tray. - Although in the above embodiment, the damper gear48 meshing with the
slider 11 a and thedamper gear 45 meshing with therack 46 in thetray 1 are used to appropriately restrict the moving speed of thetray 1 during ejection, similar effects can be obtained by using both thedamper gear 45 and adamper gear 54 that engages with arack 53 formed only at the front end of thetray 1 as shown in FIG. 1. Thedamper gear 54 is mounted on ashaft 55 on thebase 2, with highly viscous grease applied to theshaft 55. - In addition, similar effects can be expected by forming
teeth 56 on the rear surface of thecoupling lever 13, as shown in FIG. 12, and using adamper gear 57 that engages with theteeth 56 together with thedamper gear 45.
Claims (5)
1. A disc transfer mechanism for setting on a turntable a disc placed on a tray in response to the drawing-out and -back of said tray, comprising:
a spring provided between said tray and a base that supports said tray in the direction in which said tray is drawn out and back, in order to urge the tray in the direction in which it is pushed out from the base; and
a damper means provided between the base and said tray, and adapted to reduce the speed of the tray movement effected by the urging force of said spring;
said damper means comprising:
a first damper interposed between said tray and the base that supports the tray in the direction in which the tray is drawn out and back, in order to reduce the tray moving speed during all the steps in which the tray is moved by the urging force of the spring; and
a second damper that operates during the step of delivering the disc set on the turntable to the tray.
2. A disc transfer mechanism comprising:
an elevating mechanism for elevating and lowering a turntable in response to the drawing-out and -back of a tray to allow the turntable to be installed on and removed from a disc placed on the tray;
a disc receiving member provided at the front end of said tray and adapted to freely slide in the direction in which the tray is drawn out and back, and having a positioning protrusion that can abut on the outer circumference of the disc being loaded while said disc receiving member is urged toward the internal end of the tray;
said disc receiving member being arranged to abut on the fixed side when the central hole of the disc placed on the tray reaches a position over said turntable and to move toward the front end of the tray relative to the movement of the tray toward the internal end thereof;
a spring provided between said tray and the base that supports said tray in the direction in which it is drawn out and back, in order to urge said tray in the direction in which it is pushed out from the base; and
a damper means provided between the base and said tray in order to reduce the speed of the tray movement effected by the urging force of the spring;
said damper means comprising:
a first damper interposed between said tray and the base that supports the tray in the direction in which the tray is drawn out and back, in order to reduce the tray moving speed during all the steps in which said tray is moved by the urging force of the spring; and
a second damper interposed between the base that supports the tray in the direction in which the tray is drawn out and back and an elevating mechanism for elevating and lowering the turntable in response to the drawing-out and -back of the tray, in order to operate during the step of delivering the disc set on the turntable to the tray.
3. A disc transfer mechanism comprising:
an elevating mechanism for elevating and lowering a turntable in response to the drawing-out and -back of a tray to allow the turntable to be installed on and removed from a disc placed on the tray;
a disc receiving member provided at the front end of said tray and adapted to freely slide in the direction in which the tray is drawn out and back, and having a positioning protrusion that can abut on the outer circumference of the disc being loaded while said disc receiving member is urged toward the internal end of the tray;
said disc receiving member being arranged to abut on the fixed side when the central hole of the disc placed on the tray reaches a position over said turntable, and to move toward the front end of the tray relative to the movement of the tray toward its internal end;
a spring provided between said tray and the base that supports said tray in the direction in which it is drawn out and back, in order to urge said tray in the direction in which it is pushed out from the base; and
a damper means provided between the base and said tray in order to reduce the speed of the tray movement effected by the urging force of the spring;
said damper means comprising:
a first damper attached to the base that supports the tray in the direction in which the tray is drawn out and back, and engaging with a first rack formed to extend from the front end to internal end of said tray; and
a second damper attached to said base and engaging with a second rack formed only at the front end of the tray.
4. A disc transfer mechanism according to any one of to , wherein the spring for urging the tray in the direction in which it is pushed out from the base is provided on the top surface of the base in a tray moving path, such that the spring extends along a path bent around rollers provided on the base.
claims 1
3
5. A disc transfer mechanism for setting on a turntable a disc placed on a tray in response to the drawing-out and -back of said tray, comprising:
a spring provided between said tray and a base that supports said tray in the direction in which said tray is drawn out and back, in order to urge the tray in the direction in which it is pushed out from the base;
said spring being provided on the top surface of the base in a tray moving path, such that the spring extends along a path bent around rollers provided on the base.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10-017606 | 1998-01-30 | ||
JP10-17606 | 1998-01-30 | ||
JP01760698A JP3506598B2 (en) | 1998-01-30 | 1998-01-30 | Disk transfer mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010017835A1 true US20010017835A1 (en) | 2001-08-30 |
US6370100B2 US6370100B2 (en) | 2002-04-09 |
Family
ID=11948554
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/238,591 Expired - Fee Related US6370100B2 (en) | 1998-01-30 | 1999-01-28 | Disc transfer mechanism for an information disc drive |
Country Status (4)
Country | Link |
---|---|
US (1) | US6370100B2 (en) |
JP (1) | JP3506598B2 (en) |
CN (1) | CN1229986A (en) |
MY (1) | MY120561A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030026188A1 (en) * | 2001-08-03 | 2003-02-06 | Nec Corporation | Thinner structure for electronic devices, and provision of given space in electronic devices |
US6665256B2 (en) | 2001-08-21 | 2003-12-16 | Tanashin Denki Co., Ltd. | Floating chassis fixing device for a disc player |
US7209320B1 (en) | 2004-01-16 | 2007-04-24 | Excelstor Technology, Inc. | Offset angle disc clamp |
CN100424772C (en) * | 2005-12-30 | 2008-10-08 | 上海乐金广电电子有限公司 | Mini disc driver |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100403590B1 (en) | 2001-07-23 | 2003-10-30 | 삼성전자주식회사 | Disk changer |
TWI242182B (en) * | 2003-09-04 | 2005-10-21 | Lite On It Corp | An adjusting method of the tray-in and tray-out speed in optical disk drives |
GB0417795D0 (en) * | 2004-08-10 | 2004-09-15 | Esselte Nv | Cassette locking and ejecting arrangement |
CN101142627B (en) * | 2005-04-12 | 2010-05-19 | 松下电器产业株式会社 | Disk device |
JP4906312B2 (en) * | 2005-10-24 | 2012-03-28 | モレックス インコーポレイテド | Card connector |
CN107098124B (en) * | 2017-06-21 | 2023-09-05 | 芜湖裕东自动化科技有限公司 | Dried tofu blanking device |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60214473A (en) * | 1984-04-09 | 1985-10-26 | Mitsubishi Electric Corp | Loading mechanism of magnetic disc device |
EP0330292A3 (en) * | 1985-01-07 | 1990-03-28 | POLYGRAM GmbH | Combination of a storage cassette and an element for receiving and holding an information disc, and a storage cassette and element for receiving and holding for use in said combination |
DE3672001D1 (en) * | 1985-07-12 | 1990-07-19 | Pioneer Electronic Corp | DISK DEVICE. |
US4701823A (en) * | 1985-10-17 | 1987-10-20 | Tokico Ltd. | Magnetic disc recording and reproducing device with damper and lock for head moving motor |
JPH02292773A (en) * | 1989-05-02 | 1990-12-04 | Pioneer Electron Corp | Player for housing plural disks |
GB2238158B (en) * | 1989-10-16 | 1994-02-09 | Alpine Electronics Inc | Disk loading device |
JPH08287581A (en) * | 1995-04-13 | 1996-11-01 | Nakamichi Corp | Changer type disk reproducing device |
US5933400A (en) * | 1996-12-25 | 1999-08-03 | Teac Corporation | Disk apparatus having a disk tray adapted for two different types of optical disk |
-
1998
- 1998-01-30 JP JP01760698A patent/JP3506598B2/en not_active Expired - Fee Related
-
1999
- 1999-01-28 US US09/238,591 patent/US6370100B2/en not_active Expired - Fee Related
- 1999-01-29 CN CN99101734A patent/CN1229986A/en active Pending
- 1999-01-29 MY MYPI99000334A patent/MY120561A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030026188A1 (en) * | 2001-08-03 | 2003-02-06 | Nec Corporation | Thinner structure for electronic devices, and provision of given space in electronic devices |
US6665256B2 (en) | 2001-08-21 | 2003-12-16 | Tanashin Denki Co., Ltd. | Floating chassis fixing device for a disc player |
US7209320B1 (en) | 2004-01-16 | 2007-04-24 | Excelstor Technology, Inc. | Offset angle disc clamp |
CN100424772C (en) * | 2005-12-30 | 2008-10-08 | 上海乐金广电电子有限公司 | Mini disc driver |
Also Published As
Publication number | Publication date |
---|---|
JPH11213508A (en) | 1999-08-06 |
US6370100B2 (en) | 2002-04-09 |
JP3506598B2 (en) | 2004-03-15 |
CN1229986A (en) | 1999-09-29 |
MY120561A (en) | 2005-11-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6370100B2 (en) | Disc transfer mechanism for an information disc drive | |
US20050086674A1 (en) | Disk carrying apparatus | |
US7380251B2 (en) | Disk apparatus | |
JP3387789B2 (en) | Tray loading mechanism of recording / reproducing device | |
US6600702B2 (en) | Disc cartridge and disc recording and/or reproducing apparatus | |
US6404725B2 (en) | Disc changer with switching gear and drive switching means | |
US6345027B1 (en) | Disk driving apparatus | |
US6160781A (en) | Disc transfer mechanism | |
US6751181B1 (en) | Recording and/or reproducing device for disks | |
US5796709A (en) | Disk reproducting apparatus having improved connection between the centering member and turntable | |
US7047538B2 (en) | Recording and/or reproducing device for disk | |
JP4093118B2 (en) | Disk unit | |
JP4152633B2 (en) | Cartridge positioning mechanism for disk drive | |
JP3387791B2 (en) | Tray loading mechanism of recording / reproducing device | |
JP3387790B2 (en) | Tray loading mechanism of recording / reproducing device | |
US6487159B1 (en) | Disc player | |
JP2746247B2 (en) | Disc loading device | |
JP4087123B2 (en) | Disk device loading method and mechanism | |
JP3729631B2 (en) | Disk transfer mechanism | |
KR100333597B1 (en) | Disc drive | |
JPH073489Y2 (en) | Alignment mechanism of the disk pull-out lever of the automatic disk changer | |
KR100245588B1 (en) | Disk drive | |
KR950010965B1 (en) | Cd auto-change player | |
JPH082829Y2 (en) | Cassette loading mechanism in magnetic recording / reproducing apparatus | |
KR950010967B1 (en) | Cd auto-changer player |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., JAPAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KOSHINO, KATSUHIKO;NAKAMURA, TAKESHI;REEL/FRAME:009822/0912 Effective date: 19990304 |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20100409 |