CN1601633A

CN1601633A - CD player having gear for preventing disk from dropped off

Info

Publication number: CN1601633A
Application number: CN 03160320
Authority: CN
Inventors: 邱奕麟
Original assignee: BenQ Corp
Priority date: 2003-09-26
Filing date: 2003-09-26
Publication date: 2005-03-30
Anticipated expiration: 2023-09-26
Also published as: CN1292427C

Abstract

The optical disc drive includes a base seat, a nose block and at least one hook. The base seat carries an optical disc. The nose block is extruded out the base seat vertically. When optical disc is carried, the block is extruded out of the central hole. Each hook is fixed on the nose block in rotatable mode. The optical disc drive also includes at least a spring set, and each spring set connects a hook to the nose. When optical disc runs in low speed or stoped, each spring set take each hook in the nose, making each hook leave disc; When optical disc runs at high speed, each rotating hook holds the optical disk by using obtained centrifugal force so as to prevent optical disc from flying off.

Description

Have and prevent that CD from flying off the CD player of mechanism

Technical field

The invention provides a kind of CD player, relate in particular to a kind of have prevent that CD from flying off the CD player of mechanism.

Background technology

The CD that volume is frivolous, with low cost, memory capacity is big can store a large amount of electronic datas, data, audio and video information, has become one of most important medium of advanced information society.Want the data on the access CD, will cooperate the use of CD player.CD with a clip device fixed position, and with high rotating speed rotation mode, makes the optical read head of CD player can carry out data search operation on the CD in CD player.Under high-revolving situation, CD when CD player is rocked or impact, thereby may cause clip device to get loose causing the serious result of quick-fried (flying disc).The many designs of present commercially available CD player one magnetic force holder device is to take precautions against the generation of quick-fried phenomenon.

With reference to Fig. 1, Fig. 1 is the synoptic diagram of the CD player 10 of known use magnetic holder gripping member.CD player 10 comprises a holder 12, a pallet 14, a projection 16, a rotating disk) 18 and one motor 20.Holder 12 is arranged at the loam cake inboard of CD player in mobilizable mode, pallet 14 is arranged between holder 12 and the rotating disk 18 in mobilizable mode, projection 16 is coated with a magnetisable material 24, and motor 20 is arranged under the rotating disk 18, and CD 22 is placed on the pallet 14.When CD player 10 read CD 22, rotating disk 18 can withstand CD 22, cooperated holder 12 that CD 22 is clamped, and made CD 22 leave pallet 14, drove rotating disks 18 with motor 20 again and rotated, and made the read head of CD player 10 can read data in the CD 28.Holder 12 is a metal constituent components, is arranged on the pallet 14, in order to be used for chucking optical disk 22 with rotating disk 18.

CD player 10 is when reading CD 22, rotating disk 18 can move up to engage with holder 12 CD 22 is withstood, CD 22 is suspended on the pallet 14, the magnetisable material 24 that invests projection 16 on the rotating disk 18 this moment is close to holder 12, holder 12 is attracted downwards because of the magnetic force of magnetisable material 24, tightly CD 22 is clamped.Magnetisable material 24 by moving the below upwards near holders 12 or mobile magnetisable material 24 downwards away from holder 12, just can operate holder 12 and hold rotating disk 18 downwards or leave rotating disk 18.

From the above, known technology is to add magnetisable material 24 in projection 16, make CD player 10 when moving back sheet and advancing sheet, the holder 12 that metal constitutes can hold rotating disk 18 by the interaction magnetic force with magnetisable material 24, and clamp CD 22 jointly, to prevent that under high-revolving situation CD causes clip device to get loose when CD player is rocked or impact.But owing to the magnetic force of magnetisable material 24 size can be along with the increase of temperature be successively decreased, if magnetic force too little make that holder 12 can't be certain hold rotating disk 18, then holder 12 still may get loose and quick-fried serious result takes place.

Summary of the invention

Therefore fundamental purpose of the present invention be to provide a kind of have prevent that CD from flying off the CD player of mechanism, to solve the problem of above-mentioned known CD player.

Disclose a kind of CD player according to the present invention.This CD player includes a base, a projection and at least one trip.This base is in order to carry a CD; This projection vertically protrudes on this base, is used for protruding in the center hole of CD when carrying disc; Each trip of a plurality of trips is fixed on the projection in rotating mode; Base is a pallet, slidably is installed in the housing of CD player.Wherein when base was static, the hook part of this trip was accommodated in the outer rim of projection, and when base rotated to a desired speed, the hook part of trip then protruded in outside the outer rim of projection, to seize this CD on both sides by the arms; When CD was in the slow-speed of revolution or stops, each was hooked in that CD is in the slow-speed of revolution or when stopping, and with gravity itself each trip was accommodated in the projection, made trip leave CD; When CD was in high-speed state, the centrifugal force that utilizes rotation to be obtained rotated with this CD of clamping each trip, avoids CD to fly off.

Second embodiment of the CD player that discloses according to the present invention.This CD player includes a base, a projection and at least one trip.This base is in order to carry a CD; This projection vertically protrudes on the base, is used for protruding in the center hole of CD when this CD of carrying; Each trip is fixed on the projection in rotating mode.Base is a pallet, slidably is installed in the housing of CD player.CD player also comprises at least one elastic device, and each elastic device connects a trip and projection, and when CD was in the slow-speed of revolution or stops, this elastic device was accommodated in each trip in the projection, makes each trip leave CD; When CD was in high-speed state, the centrifugal force that utilizes rotation to be obtained rotated with this CD of clamping each trip, avoids CD to fly off.

The 3rd embodiment of the CD player that discloses according to the present invention.This CD player includes a base, a projection and at least one trip.This base is in order to carry a CD; This projection vertically protrudes on this base, is used for protruding in the center hole of CD when carrying disc; Each trip is fixed on the projection in rotating mode.Base is a pallet, slidably is installed in the housing of CD player.Each trip of CD player is the magnetic trip, and projection also comprises a magnetisable material, is used for adsorbing each trip.When CD was in the slow-speed of revolution or stops, this magnetisable material adsorbed each trip with magnetic force and is accommodated in the projection, makes trip leave CD; When CD was in high-speed state, the centrifugal force that utilizes rotation to be obtained rotated with this CD of clamping each trip, avoids CD to fly off.

The 4th embodiment of the CD player that discloses according to the present invention.This CD player includes a base, a projection and at least one trip.This base carries a CD; This projection vertically protrudes on the base, is used for protruding in when carrying disc the center hole of CD; This trip is the magnetic trip, slidably be fixed in the track on the projection, and projection also comprises a magnetisable material, is used for adsorbing this trip.Wherein when base was static, the hook part of trip was accommodated in the outer rim of projection, and when base rotated to a desired speed, the hook part of trip then protruded in the outer rim of projection, with this CD of clamping; When CD was in the slow-speed of revolution or stops, this magnetisable material adsorbed each trip with magnetic force and is accommodated in the projection, makes each trip leave CD; When CD was in high-speed state, the centrifugal force that utilizes rotation to be obtained rotated with this CD of clamping each trip, avoids CD to fly off.

Description of drawings

Fig. 1 is the synoptic diagram of known CD player;

Fig. 2 is the synoptic diagram of CD player of the present invention;

Fig. 3 for according to first embodiment of the present invention CD player in the slow-speed of revolution or the synoptic diagram when not rotating;

Fig. 4 is according to the synoptic diagram of first embodiment of the present invention CD player when the high rotating speed;

Fig. 5 for CD player according to a second embodiment of the present invention in the slow-speed of revolution or the synoptic diagram when not rotating;

Fig. 6 is the synoptic diagram of CD player when high rotating speed according to a second embodiment of the present invention;

Fig. 7 for a fourth embodiment in accordance with the invention CD player in the slow-speed of revolution or the synoptic diagram when not rotating;

Fig. 8 is the synoptic diagram of a fourth embodiment in accordance with the invention CD player when high rotating speed;

Chart shown in Figure 9 be of the present invention each be hooked under the different rotating speeds of CD player suffered relatively

Answer the centrifugal force table of comparisons.

Concrete Real executes mode

Consult Fig. 2, Fig. 3 and Fig. 4 simultaneously.Figure 2 shows that the synoptic diagram of CD player 30 of the present invention, Figure 3 shows that first embodiment of the present invention CD player 30 in the slow-speed of revolution or the synoptic diagram when not rotating, Figure 4 shows that the synoptic diagram of first embodiment of the present invention CD player 30 when high rotating speed.CD player 30 includes a base 32, a projection 36 and a plurality of trip 38.Base 32 is in order to carrying disc 34; Projection 36 vertically protrudes on the base 32, when being used for right carrying disc 34, protrudes in the center hole of CD 34; Each trip 38 is fixed on the projection 36 in rotating mode.Base 32 is a pallet, slidably is installed in the housing of CD player 30.CD player 30 also is provided with a motor 44 and rotating disk 42, and motor 44 drives rotating disks 42 and rotates, and makes the read head of CD player 30 can read data in the CD 34.Wherein when rotating disk 42 during static or low speed state, the hook part of each trip 38 will be accommodated in the outer rim of projection 36, and when rotating disk 42 rotated to a desired speed, the hook part of trip 38 then protruded in outside the outer rim of projection 36, so that chucking optical disk.When CD player 30 begins CD 34 is read when action, rotating disk 42 will move up CD 34 will be withstood, and CD 34 is suspended on the base 32, and simultaneously, by the driving of motor 44, rotating disk 42 drives CDs 34 and is rotated.Wherein, when CD 34 was in the slow-speed of revolution or stops, a plurality of trips 38 were accommodated in the projection 36 because of the gravity of itself, and like this, a plurality of trips 38 will leave the surface of CD 34.Consult Fig. 4.When CD 34 is in high-speed state, the centrifugal force that utilizes rotation to be obtained, trip 38 radiation directions that are arranged at projection 36 rotate outward, protrude in the scope that projection 36 is taken in, thereby place the surface of CD 34.The a plurality of trips 38 that protrude in projection 36 are with rotating disk 42 so with acting in conjunction, clamp the CD 34 in the rotation, make CD 34 when CD player 30 is rocked or impacted, can see through a plurality of trips 38 that protrude in projection 36, the CD 34 that further clamping gets loose, thereby the into guarantee of one deck can be provided.Must emphasize that at this 30 pairs of CDs 34 of CD player read when action, the move mode of rotating disk 42 and operational method are that CD player is made the technology that business men institute extensively adopts, and seldom tire out herein and state.Moreover, the synoptic diagram that Fig. 3 shows is that CD 34 is in describing of halted state, when being under the low speed state, rotating disk 42 will move up as shown in Figure 4 and withstand CD 34, but the rotating speed that this moment, motor 44 rotating disk that drives 42 rotations were obtained is not sufficient to provide the trip 38 that is accommodated in projection 36 enough centrifugal force, cause each trip 38 outwards not rotate, be difficult to make the hook part of trip 38 to protrude in the scope that projection 36 is taken in, this feature is not plotted on the figure.

Consult Fig. 5 and Fig. 6 simultaneously.Figure 5 shows that CD player 60 according to a second embodiment of the present invention in the slow-speed of revolution or the synoptic diagram when not rotating, Figure 6 shows that the synoptic diagram of CD player 60 when high rotating speed according to a second embodiment of the present invention.CD player 60 includes a base 32, a projection 36 and a plurality of trip 38.Base 32 is in order to carrying disc 34; Projection 36 vertically protrudes on the base 32, is used for when carrying disc 34, protrudes in the center hole of CD 34; Each trip 38 is fixed on the projection 36 in rotating mode.Base 32 is a pallet, slidably is installed in the housing of CD player 30.CD player 60 also is provided with a motor 44 and rotating disk 42, and motor 44 drives rotating disks 42 and rotates, and makes the read head of CD player 60 can read data in the CD 34.CD player 60 also comprises at least one elastic device 50, and each elastic device 50 is connected in the centre of a trip 38 and projection 36.When CD player 60 begins CD 34 is read when action, rotating disk 42 will move up CD 34 will be withstood, and CD 34 is suspended on the base 32, and simultaneously, by the driving of motor 44, rotating disk 42 drives CDs 34 and is rotated.Wherein, when CD 34 was in the slow-speed of revolution or stops, elastic device 50 was according to its elastic force that has, and the hook part of the trip 38 that will be connected is accommodated in the projection 36, made the hook part of each trip 38 leave the surface of CD 34.Consult Fig. 6.When CD 34 is in high-speed state, the centrifugal force that utilizes rotation to be obtained, each trip 38 will break away from the elastic force restriction of elastic material 50, and radiation direction rotates outward, protrudes in the scope that projection 36 is taken in, thereby places the surface of CD 34.So, the a plurality of trips 38 that protrude in projection 36 are with rotating disk 42 so with acting in conjunction, clamp the CD 34 in the rotation, make CD 34 when CD player 60 is rocked or impacted, can be by protruding in a plurality of trips 38 of projection 36, the CD 34 that further clamping gets loose avoids CD 34 to fly off.Must emphasize that at this 60 pairs of CDs 34 of CD player read when action, the move mode of rotating disk 42 and operational method are that CD player is made the technology that business men institute extensively adopts, and seldom tire out herein and state.Have again, the synoptic diagram that Fig. 5 shows is that CD 34 is in describing of halted state, when being under the low speed state, rotating disk 42 will move up as shown in Figure 6 and withstand CD 34, but the rotating speed that this moment, motor 44 rotating disk that drives 42 rotations were obtained is not sufficient to provide the trip 38 that is accommodated in projection 36 enough centrifugal force, cause each trip 38 to have no way of outwards rotating, be difficult to make the hook part of trip 38 to protrude in the scope that projection 36 is taken in, this feature is not drawn on the figure.，

The 3rd embodiment about CD player of the present invention consults Fig. 3 and Fig. 4 simultaneously.Because the embodiment of the third embodiment of the present invention is identical with first embodiment of the present invention CD player 30 with the composition assembly, is not giving unnecessary details at this, relevant embodiment is identical with CD player 30.Want lay special stress on, the third embodiment of the present invention and the first embodiment CD player, 30 differences are, the trip 38 of CD player constitutes for metal or is the trip of magnetisable material formation, projection 36 comprises a magnetisable material (not being drawn on the figure), uses magnetic force that this magnetisable material that is additional to projection 36 and each trip 38 attract each other with absorption trip 38.When CD player begins CD 34 is read when action, rotating disk 42 will move up CD 34 will be withstood, and CD 34 is suspended on the base 32, and simultaneously, by the driving of motor 44, rotating disk 42 drives CDs 34 and is rotated.Wherein, when CD 34 was in the slow-speed of revolution or stops, this magnetisable material adsorbed each trip 38 with magnetic force and is accommodated in the projection 36, made the hook part of trip 38 leave the surface of CD 34; When CD 34 is in high-speed state, the centrifugal force that utilizes rotation to be obtained, the absorption radiation direction that each trip 38 will break away from this magnetisable material rotates outward, makes the hook part of trip 38 protrude in the scope that projection 36 is taken in, and places the surface of CD 34.Like this, each trip 38 that protrudes in projection 36 and rotating disk 42 are with acting in conjunction, clamp the CD 34 in the rotation, make CD 34 when CD player 30 is rocked or impacted, can be by protruding in each trip 38 of projection 36, the CD 34 that further clamping gets loose avoids CD 34 to fly off.Must emphasize that at this CD player reads when action to CD 34, the move mode of rotating disk 42 and operational method are that CD player is made the technology that business men institute extensively adopts, and seldom tire out herein and state.Have again, the synoptic diagram that Fig. 3 shows is that CD 34 is in describing of halted state, when being under the low speed state, rotating disk 42 will be as shown in Figure 4, moves up to withstand CD 34, still, motor 44 drove rotating disks 42 and rotated the rotating speed that is obtained and be not sufficient to provide the trip 38 that is accommodated in projection 36 enough centrifugal force this moment, cause each trip 38 outwards not rotate, be difficult to make the hook part of trip 38 to protrude in the scope that projection 36 is taken in, this feature is not drawn on the figure.

Consult Fig. 7 and Fig. 8 simultaneously.Figure 7 shows that a fourth embodiment in accordance with the invention CD player 70 in the slow-speed of revolution or the synoptic diagram when not rotating, Figure 8 shows that the synoptic diagram of a fourth embodiment in accordance with the invention CD player 70 when high rotating speed.CD player 70 includes a base 32, a projection 36 and a plurality of trip 38.Base 32 is in order to carrying disc 34; Projection 36 vertically protrudes on the base 32, is used for when carrying disc 34, protrudes in the center hole of CD 34.CD player 70 is also with a sliding rail 52, and trip 38 can be moved with the mode of the sliding line of slide according to sliding rail 52.CD player 70 also is provided with a motor 44 and rotating disk 42, and motor 44 drives rotating disks 42 and rotates, and makes the read head of CD player 70 can read data in the CD 34.Projection 36 also comprises a magnetisable material (not being drawn on the figure), is used for adsorbing trip 38.When CD player 70 begins CD 34 read, rotating disk 42 will move up CD 34 will be withstood, and CD 34 is suspended on the base 32, and simultaneously, by the driving of motor 44, rotating disk 42 drives CDs 34 and is rotated.Wherein, when CD 34 was in the slow-speed of revolution or stops, the hook part that magnetisable material adsorbs each trip 38 and takes in trip 38 with magnetic force made trip 38 leave CD 34 in projection 36.Consult Fig. 8.When CD 34 is in high-speed state, the centrifugal force that utilizes rotation to be obtained, the hook part of each trip 38 is according to the moving track of sliding rail 52, move to the outer rim that protrudes in projection 36, thereby place the surface of CD 34, like this, each trip 38 that protrudes in projection 36 and rotating disk 42 are with acting in conjunction, clamp the CD 34 in the rotation, make CD 34 when CD player 30 is rocked or impacted, can be by protruding in each trip 38 of projection 36, the CD 34 that further clamping gets loose avoids CD 34 to fly off.In addition, present embodiment be except that using magnetisable material to provide the attractive force as mentioned above, comes the interlock trip in the mode of elastic force apparatus in also can using as described above, do not give unnecessary details at this.What must emphasize is, when 70 pairs of CDs 34 of CD player read action, the move mode of rotating disk 42 and operational method were that CD player is made the technology that business men institute extensively adopts, and seldom tire out herein and state.Have again, the synoptic diagram that Fig. 7 shows, for CD 34 is in describing of halted state, when being under the low speed state, rotating disk 42 will be as shown in Figure 8, move up and withstand CD 34, but motor 44 drove rotating disks 42 and rotated the rotating speed that is obtained and be not sufficient to provide the trip 38 that is accommodated in projection 36 enough centrifugal force this moment, caused each trip 38 outwards not rotate, be difficult to make the hook part of trip 38 to protrude in the scope that projection 36 is taken in, this feature is not drawn on the figure.

Consult Fig. 9.Table shown in Figure 9 causes the suffered corresponding centrifugal force table of comparisons of each trip of the present invention for the CD different rotating speeds according to commercially available CD player.The embodiment of CD player according to the present invention, each trip net weight 7.975 grams are stretching out teat to the scope that projection 36 is coated the time, and the center of gravity of each trip extends the about 1.447mm of resulting arm of force length.Under the general high-revolving situation, CD just has the possibility of quick-fried of generation, and the defined high rotational speed criteria of ability is so-called high-speed state being about more than the 6000rpm.Therefore CD player of the present invention need be rotated a plurality of trips with chucking optical disk, when high-speed state takes place, as shown in Table, between 5000rpm and 7000rpm, trip need break away from the elastic device that the embodiment of the invention adds or the constraint of magnetic force, stretches out in projection with chucking optical disk.The arm of force of each trip apart from center of gravity point farthest apart from the time, be that trip lies low in projection, move the required moment of a trip and be about 0.113N*mm, like this, as when the 6000rpm, the centrifugal moment that each trip obtained is the words of 0.7N*mm, each is connected in the elastic force apparatus of this trip or the moment that magnetic means need provide about 0.41N*mm, when CD is in high-speed state, the scope that just makes trip break away from projection smoothly to be coated, extend to the top of optical disc surface, so that chucking optical disk.

The above described content of the data operating feature fixedly time the only in the table in order to conditions such as the quality of the trip that shows in an embodiment of the present invention utilization and shapes; in different trip shaped design; under weight size and the use material status, be the protection domain of CD player of the present invention.

Compare with known technology, CD player being provided with of the present invention prevents the mechanism that CD flies off, and this mechanism includes a projection and at least one trip.When this CD is in the slow-speed of revolution or stops, when each trip is in the slow-speed of revolution or stops in CD, with itself gravity or be additional to the elastic device or the magnetic devices of CD player in addition, this each trip is accommodated in the projection, make each trip leave the surface of CD.And when CD is in high-speed state, by rotating the centrifugal force that is obtained, each trip is able to the constraint of the gravity of disengaging own and magnetic force or elastic force, according to the moving track that is limited, protrude in the scope that projection is taken in, place the optical disc surface top, make CD when CD player is rocked or impact, the CD that can get loose by the further clamping of a plurality of trips that protrudes in projection, further guarantee is provided, avoid CD to be under the high-speed state, when CD player is rocked or impact, thereby cause quick-fried serious result because clip device gets loose.

The above only is preferred embodiment of the present invention, and all equivalent variations and modifications of doing according to claim of the present invention all should belong to protection scope of the present invention.

Claims

1. CD player, it includes:

One base is in order to carry a CD;

One projection vertically protrudes on this base, is used for protruding in the center hole of this CD when this CD of carrying; And

At least one trip, this trip is fixed on this projection in rotating mode;

Wherein, when this base was static, the hook part of this trip was accommodated in the outer rim of projection, and when base rotated to a desired speed, the hook part of trip then protruded in outside the outer rim of projection, with this CD of clamping.

2. CD player as claimed in claim 1 wherein also comprises a plurality of elastic devices, and each elastic device is connected in a trip and projection.

3. CD player as claimed in claim 2, wherein when CD was in the slow-speed of revolution or stops, a plurality of elastic devices were accommodated in a plurality of trips in the projection, made a plurality of trips leave CD.

4. CD player as claimed in claim 2, wherein a plurality of elastic devices are spring.

5. CD player as claimed in claim 1, wherein a plurality of trips are the magnetic trip, and projection also comprises a magnetisable material, is used to adsorb a plurality of trips.

6. CD player as claimed in claim 5, wherein when CD was in the slow-speed of revolution or stops, magnetisable material adsorbed a plurality of trips with magnetic force and is accommodated in the projection, makes a plurality of trips leave CD.

7. CD player as claimed in claim 1, wherein a plurality of trips are accommodated in a plurality of trips in the projection with gravity own when CD is in the slow-speed of revolution or stops, and make a plurality of trips leave CD.

8. CD player as claimed in claim 1 wherein when CD is in high-speed state, is utilized and is rotated the centrifugal force that is obtained, and a plurality of trips rotate with chucking optical disk, avoid CD to fly off.

9. CD player as claimed in claim 1, wherein base is a pallet, slidably is installed in the housing of CD player.

10. CD player, it includes:

One base is in order to carry a CD;

One projection vertically protrudes on this base, when being used to carry this CD, protrudes in the center hole of CD; And

At least one trip slidably is fixed in the track on the projection;

Wherein, when this base was static, the hook part of this trip was accommodated in the outer rim of projection, and when base rotated to a desired speed, the hook part of trip then protruded in the outer rim of projection, with this CD of clamping.

11. CD player as claimed in claim 10, wherein a plurality of trips are the magnetic trip, and projection also comprises a magnetisable material, is used to adsorb a plurality of trips.

12. CD player as claimed in claim 11, wherein when CD was in the slow-speed of revolution or stops, magnetisable material adsorbed a plurality of trips with magnetic force and is accommodated in the projection, makes a plurality of trips leave CD.

13. CD player as claimed in claim 10 wherein when CD is in high-speed state, is utilized and rotated the centrifugal force that is obtained, a plurality of trips rotate with chucking optical disk, avoid CD to fly off.

14. CD player as claimed in claim 10, wherein base is a pallet, slidably is installed in the housing of CD player.