CN1385850A - Holding mechanism - Google Patents
Holding mechanism Download PDFInfo
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- CN1385850A CN1385850A CN 02120027 CN02120027A CN1385850A CN 1385850 A CN1385850 A CN 1385850A CN 02120027 CN02120027 CN 02120027 CN 02120027 A CN02120027 A CN 02120027A CN 1385850 A CN1385850 A CN 1385850A
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- clamper
- disc
- support arm
- turntable
- protuberance
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Abstract
To reduce force required for separating a clamper. The clamping mechanism is provided with a turntable 3 for placing and rotating a disk 5, a clamper 1 for holding the disk 5 between itself and the turntable 3, and a clamper arm 2 which removably supports the clamper 1 and releases it from the disk 5. When the clamper 1 is separated from the turntable 3, a projecting part 4 is provided in an action part 2a of the clamper arm 2 brought into contact with the clamper 1, and the clamper 1 is separated from the turntable 3 by the principle of leverage.
Description
Technical field
The present invention relates to clamping device to CD (small-sized disc) and DVD discs such as (DIGITAL VERSATILE DISC or digital video discs) maintenance usefulness, again specifically, the present invention relates to use disc is clamped in and turntable between the clamping device of clamper.
Background technology
In disc regeneration (record) device of CD and DVD etc.,, used clamper in order to remain on disc on the turntable and to make its rotation.As shown in figure 14, clamper 100 is configured on the reverse side of turntable 102, and is middle across disc 101.Around clamper 100, be provided with clamper support arm 106 again.Clamper support arm 106 can engage with the peripheral part of clamper 100, utilizes not shown driving mechanism to move by the above-below direction in Figure 14.
During standby before inserting disc 101, clamper support arm 106 is far from turntable 102, and clamper 100 is suspended in midair by clamper support arm 106 and supporting (with reference to Figure 14).During disc 101 regeneration, clamper support arm 106 moves near turntable 102.Along with moving of clamper support arm 106, clamper 100 is also close to turntable 102, relies on the magnet 103 be embedded in the clamper 100 and the magnetic attraction that is embedded in the magnetic 107 in the turntable 102 and is kept by clamper 100 and turntable 102 central portion with disc 101.On the other hand, after this absorption, clamper support arm 106 continues to turntable 102 side shiftings.Thus, clamper 100 breaks away from the supporting (with reference to Figure 15) of clamper support arm 106.Then, drive installation has the stepper motor 105 of turntable 102 to make turntable 102 rotations, and disc 101 and clamper 100 rotate along with turntable 102 rotations.
When the regeneration ending of disc 101 or when interrupting, clamper support arm 106 separates with turntable 102, should turn back to position shown in Figure 14 once more.In this moving process, clamper support arm 106 hooks clamper 100, with disc 101 parallel shape ground clamper 100 is drawn away from turntable 102.
Yet, when the recording density DVD higher than CD regenerates, disc 101 vibrations when needing to restrain regeneration more reliably.And, if exceed DVD regeneration in the running up of two times of speed etc., disc 101 vibrations when just needing more to restrain regeneration reliably.For this reason, in recent years, have the DVD regeneration function and doubly in the disc reproduction apparatus of fast function,, the magnet 103 with strong magnetic force is being installed on clamper 100 in order to improve confining force by clamper 100 and 102 pairs of discs 101 of turntable.And disc 101 slippages when preventing high speed rotating are pasted with rubber 108 on turntable 102.
Here, if with magnet 103 and magnetic 107 relative configurations, the centre is separated with the rubber 108 that disc 101 and slippage prevent usefulness, then can weaken magnetic force,, magnetic 107 is arranged in the portion of centering 104 for this reason, accordingly magnet 103 is configured near disc 101 rotation centers with it.But, when adopting near the structure of the rotation center of disc 101, restraining disc 101 vibrations, must have the power of also being eager to excel than the structure of restraining disc 101 vibrations in the position that the rotation center from disc 101 separates.Therefore, but the magnet 103 of the sizable magnetic force with suppression of vibrations must be installed on clamper 100.
If making a concerted effort of the magnetic attraction that produces between clamper 100 when disc 101 is kept and the turntable 102 as Fa, to be the making a concerted effort as Fb ' of the power that clamper 100 drawn away from turntable 102 act on clamper support arm 106, then traditional clamping device is exactly Fb '＞Fa (with reference to Figure 16).As mentioned above, has the DVD regeneration function and doubly in the disc reproduction apparatus of fast function, the magnetic force of magnet 103 is very strong, also must be powerful with clamper 100 from the power Fb ' that turntable 102 draws away usefulness by clamper support arm 106 in recent years.For this reason, must strengthen the mechanism that clamper support arm 106 is moved.And, if the clamper 100 that the equal above brute force of use and this absorption affinity will be adsorbed on the turntable 102 draws away, then following problem can appear.That is: when clamper 100 is drawn away, in the mechanism of clamper support arm 106 and cross bar pedestal etc., produce deflection.Though the abrupt release that the deflection of this mechanism can separate with turntable 102 at clamper 100, this moment, mechanism vibrations and noise (vibrating noise) takes place.And, can occur also sometimes that disc 101 is upspring and from the phenomenon of bracket from falling.To make the mechanism that clamper support arm 106 moves and the cost of disc reproduction apparatus is risen in order to strengthen again.
For this reason, the object of the invention is, a kind of clamping device that clamper draws away required power that alleviates is provided.
Summary of the invention
For achieving the above object, the invention of the 1st technical scheme, be a kind of have mounting and rotate turntable that disc uses, disc is clamped in and turntable between and the clamping device of the clamper that keeps and the clamper support arm that in the supporting clamper, breaks away from disc, it is characterized in that, protuberance is set when turntable draws away at the service portion of the clamper support arm that clamper is contacted with clamper or the either party of the carrying plane of the clamper that contacts with this service portion.
Thus, when clamper draws away, relatively move, the clamper support arm is at first contacted at the protuberance place with clamper by clamper and clamper support arm.And, be used for this contact site by the masterpiece that draws away of clamper support arm, produce moment thus, so that clamper is drawn away from turntable.That is, adopt the present invention, utilize lever principle can alleviate the required power of drawing away of clamper significantly.
For example as shown in Figure 6, if the power that draws away of clamper support arm is made as Fb, will and the fulcrum E of moment and the distance between the Fb application point be made as Lb, play clamper is drawn away the moment of effect from turntable size and just be Fb * Lb.Wherein, for ease of explanation, the fulcrum E of the moment among the figure is symmetrical with clamper central shaft O and contact the position of a side with clamper as the application point of Fb.On the other hand, the Fa that makes a concerted effort of the magnetic attraction that produces between clamper and the turntable act on clamper central shaft O near, if the distance between fulcrum E and the clamper central shaft O is made as La, then the size of the moment that centers on fulcrum E that is produced by Fa is roughly Fa * La.In this occasion, set up from around the balance of the moment of fulcrum E, making formula 1.
Fb＝(La/Lb)×Fa
In the formula, if Lb: La=2: 1, Fb=Fa/2 then.In this occasion, if the power that the draws away Fb of clamper support arm then can draw away clamper greater than 1/2nd of the Fa that makes a concerted effort of magnetic attraction from turntable.
The invention of the 2nd technical scheme is in the described clamping device of the 1st technical scheme, and protuberance is set on the service portion of side in front of the direction of insertion of disc of clamper rotary middle spindle and clamper support arm.
Thus, by protuberance being arranged on the service portion of clamper support arm, when contacting with protuberance, clamper formed the state that tilts in a certain direction all the time.And, side in front of the direction of insertion of the disc of the rotary middle spindle by protuberance being arranged on clamper, then clamper has formed that a side of inserting disc is lifted and the state that tilts.Thus, when clamper is supported by the clamper support arm, can avoid disc and clamper collision in the occasion that disc is inserted.
The invention of the 3rd technical scheme is in the described clamping device of the 1st or the 2nd technical scheme, and the whole or local formation heeling condition of protuberance is so that inboard decline of the protrusion height of protuberance side direction in front of the disc direction of insertion.
At this moment, the occasion in that clamper is supported by the clamper support arm limits its posture by contacting with rake.Thus, can avoid the collision of the disc that is inserted into and clamper.Again, the occasion that tilts at whole protuberance, with clamper when turntable draws away, relatively move by clamper and clamper support arm, thereby clamper contacted in part, rake place with the clamper support arm.Like this, also can make the moment loading that draws away clamper from turntable, utilize lever principle can alleviate the required power of drawing away of clamper significantly in clamper.
The invention of the 4th technical scheme be a kind ofly have turntable that the mounting disc uses, disc is clamped in and turntable between and the clamping device of the clamper that keeps and the clamper support arm that in the supporting clamper, breaks away from from disc, it is characterized in that, supporting during clamper with the whole of the service portion of the clamper support arm of clamper contact or locally form heeling condition so that the direction of insertion front side of clamper is separated from this disc direction of insertion.
Therefore, the occasion in that clamper is supported by the clamper support arm limits its posture by contacting with rake.Thus, can avoid the collision of the disc that is inserted into and clamper.Again, the same by whole or local formation heeling condition with raised part with the service portion of clamper support arm, can make that clamper support arm and clamper are local to be contacted, utilize lever principle can alleviate the required power of drawing away of clamper significantly.
The simple declaration of accompanying drawing
Fig. 1 represent clamping device of the present invention an example, be that the expression clamper is in summary sectional view with the state of disc holding position.
Fig. 2 represent clamping device of the present invention an example, be the service portion of expression carrying plane of clamper and turntable forms contact condition at the protuberance place summary sectional view.
Fig. 3 represent clamping device of the present invention an example, be the expression clamper from being supported in the summary sectional view of the state on the clamper support arm after turntable separates.
Fig. 4 represent clamping device of the present invention an example, be the summary sectional view of expression clamper state that disc is maintained.
Fig. 5 represent clamping device of the present invention an example, be the summary sectional view that is arranged on protuberance one example on the service portion of clamper support arm for explanation.
Fig. 6 represent clamping device of the present invention an example, be the summary sectional view of principle that can alleviate the required power of drawing away of clamper for explanation.
Fig. 7 is the summary sectional view of another routine example of expression clamping device of the present invention.
Fig. 8 is the summary sectional view of the another routine example of expression clamping device of the present invention.
Fig. 9 is the summary sectional view of the another routine example of expression clamping device of the present invention.
Figure 10 is the summary sectional view of the another routine example of expression clamping device of the present invention.
Figure 11 is the summary sectional view of the another routine example of expression clamping device of the present invention.
Figure 12 is the summary sectional view of the another routine example of expression clamping device of the present invention.
Figure 13 is the summary sectional view of the another routine example of expression clamping device of the present invention.
Figure 14 is the summary sectional view of the traditional clamping device of expression.
Figure 15 is the summary sectional view of the traditional clamping device of expression.
Figure 16 is the summary sectional view of the traditional clamping device of expression.
Implement optimal morphology of the present invention
Below, describe structure of the present invention in detail with reference to example shown in the drawings.
Fig. 1 to Fig. 5 represents an example of clamping device of the present invention.This clamping device have mounting and rotate the turntable 3 of disc 5 usefulness, disc 5 is clamped in and turntable 3 between clamper 1 and the clamper support arm 2 that in supporting clamper 1, breaks away from from disc 5, at the service portion of the clamper support arm 2 that clamper 1 is contacted with clamper 1 or the either party of the carrying plane 1a of the clamper 1 that contacts with this service portion 2a protuberance 4 is set when turntable 3 draws away.
That is, as shown in Figure 3, separate, when being supported on the clamper support arm 2, contact with protuberance 4 from turntable 3, form the state that tilts in a certain direction all the time by clamper 1 at clamper 1.And for example in a side of the insertion disc 5 of the rotary middle spindle that protuberance 4 is arranged on clamper 1, then clamper 1 forms the heeling condition that the side that will insert disc 5 is raised.Thus, when being bearing in clamper 1 on the clamper support arm 2, insert the occasion of disc 5, can avoid the damage that can not insert disc 5 or disc 5 that causes because of disc 5 and clamper 1 collision etc.
At this, the direction of insertion of disc 5 is made as Y direction, the rotation center direction of principal axis of disc 5 is made as Z-direction, will be made as X-direction with Y direction and with the direction of Z-direction quadrature.Again, moment loading is called the 1st function in clamper 1, the function of utilizing lever principle to alleviate the protuberance 4 of the power of drawing away, will avoids and the function of the disc 5 that inserts and clamper 1 collision is called the 2nd function being given by the clamper 1 of clamper support arm 2 supportings that certain orientation tilts.For improving the effect of the 1st function, be preferably the force of strengthening lever principle and fulcrum distance, on the position of leaving the rotary middle spindle O of clamper 1 (hereinafter referred to as clamper central shaft O), protuberance 4 is set.In addition, for improving the effect of the 2nd function, at first be the height of considering the Z-direction of raising protuberance 4, be supported in the inclination of the clamper 1 on the clamper support arm 2 with increasing.Yet, when disc 5 regeneration,, being subjected to obstacle in order not make this rotation because of clamper 1 rotates with disc 5, the height of protuberance 4 is also limited.Therefore, strengthen the inclination of the clamper 1 that is supported on the clamper support arm 2 for protuberance 4 with specified altitude.Preferably protuberance 4 is arranged near the position the clamper central shaft O on disc 5 inserting sides and the Y direction.Like this, when protuberance 4 merely being arranged on the position, the 1st and the 2nd function with two kinds is difficult, can only be preferential with some.
For this reason, for example in this example, for satisfying the above-mentioned the 1st and the 2nd both sides' function, the face that will contact with the clamper 1 on the service portion 2a of clamper support arm 2 forms shape as shown in Figure 5, and two protuberance 4a, 4b are set.Here, in figure, on Y direction, will insert the foundation portion of service portion 2a of front side of disc 5 as the A point.To begin to insert the front side of disc 5 and leave the position of big distance L c as the B point from clamper central shaft O to Y direction.The front side of the insertion disc 5 that will begin from the clamper central shaft and to the position of axially leaving small distance Ld as the C point (so formed Ld＜Lc).On Y direction, will insert the foundation portion of service portion 2a of inboard of disc 5 as the D point.
In this example, stair-stepping the 1st protuberance 4a is set from A point to B point.In addition, represent Z-direction height with h with following the 1st protuberance 4a as benchmark of clamper support arm 2.And, the 2nd protuberance 4b is set from lower floor to the C point that B is ordered.In addition, represent Z-direction height with j with following the 2nd protuberance 4b as benchmark of clamper support arm 2.As shown in Figure 5, j＜h.When drawing away clamper 1, clamper 1 at first contacts with the 1st protuberance 4a.By strengthening distance L c, can improve the effect of the 1st function.
And, formed the rake 4c that with relative Y direction tilts from C point to D point.When clamper is supported on the clamper support arm 2 after turntable 3 separates, be positioned on the rake 4c, the direction of insertion that relative Y direction is a disc 5 becomes the heeling condition of degree.When the inclination of this is configured to clamper 1 by clamper support arm 2 supporting, relative the 1st protuberance 4a is in the gap of B point to Z-direction generation k.In this occasion, to compare with the occasion that only is provided with the 1st protuberance 4a, the gap portion of this k can strengthen the inclination of clamper 1, can improve the effect of the 2nd function.In addition, in this example,, form clamper 1 stably is supported in form on the clamper support arm 2, may not be defined in this though be provided with rake 4c.Promptly, also can be set at following form: when clamper 1 is supported on the clamper support arm 2 after turntable 3 separates, by contacting with the 2nd protuberance 4b, relatively Y direction, be the heeling condition that the direction of insertion of disc 5 forms the degree, and the inclination of this is set to the gap of the B point of relative the 1st protuberance 4a to Z-direction generation k.
Yet the structure of clamper 1 is contained in the disc reproduction apparatus by interior, with disc 5 clamp as shown in Figure 4 maintenance, promptly be clamped in and turntable 3 between, the disc 5 that makes clamping is with turntable 3 rotations.Clamper 1 is for example in this example, by clamper body 6, magnet 8 and magnet 8 is fixed on the magnet retainer of using on the clamper body 67 constitutes.The clamper body 6 of this example is cylindric, is provided with flange part 9a, the 9b that engages with the service portion 2a of clamper support arm 2 at these two ends cylindraceous.Again, be provided with the hole of the usefulness that centers in the bottom center of clamper body 6, the bottom surface periphery in this hole has formed the axle support of the axle 20 of supporting turntable 3 when clamping.
Around clamper 1, be provided with the rotatable clamper support arm 2 that supports clamper 1 freely.The service portion 2a that engages with clamper 1 is between flange part 9a and flange part 9b, and clamper 1 can move in the scope between flange part 9a and the flange part 9b.In addition, in this example, the face that contacts with the service portion 2a of flange part 9a becomes carrying plane 1a.
Below with reference to Fig. 1 to Fig. 3, the action example that is suitable for the clamping device be provided with the clamper support arm 2 that the 1st protuberance 4a and the 2nd protuberance 4b constitute is made an explanation.
In disc 5 regeneration (broadcast) before, clamper 1 is supported on the clamper support arm 2 after turntable 3 separates.At this moment, the flange part 9a of clamper 1 is positioned on the rake 4c, clamper 1 relative Y direction, is the state (with reference to Fig. 3) that the direction of insertion of disc 5 forms.Thus, can avoid the disc that is inserted into 5 and clamper 1 collision.
When disc was regenerated, in case insert disc 5 and arrive assigned position, then clamper support arm 2 moved to turntable 3 directions.In this moving process, be embedded in magnet and the magnetic adhesive that is installed on the turntable 3 in the clamper 1, clamper 1 is inhaled on turntable 3, utilize this adhesive, clamper 1 forms the form parallel with the face of disc 5.After this adhesive, clamper support arm 2 continues to turntable 3 one side shiftings.Thus, clamper 1 breaks away from the supporting of clamper support arm 2.At this moment, clamper 1 becomes the state of Fig. 1.Under this state, drive not shown stepper motor and make turntable 3 rotation, along with the rotation of turntable 3, disc 5 and clamper 1 rotation and carry out the regeneration of disc 5.
When the regeneration ending of disc 5 or interruption etc., clamper support arm 2 is for being back to position shown in Figure 3 once more, and separates mobile with turntable 3.In this moving process, the 1st protuberance 4a that is arranged on the service portion 2a of clamper support arm 2 contacts (with reference to Fig. 2) with the flange part 9a of clamper 1.Clamper support arm 2 applies the displacing force of further disengaging turntable 3 to this contact site, thereby has produced the moment that clamper 1 is drawn away from turntable 3, clamper 1 can be drawn away from turntable 3.Clamper 1 after drawing away from turntable 3 is supported on the clamper support arm 2.At this moment, the flange part 9a of clamper 1 is positioned on the rake 4c, and the direction of insertion that clamper 1 relative Y direction is a disc 5 forms the state of inclination.And clamper support arm 2 is back to position shown in Figure 3 once more.
As mentioned above, adopt clamping device of the present invention, utilize lever principle can alleviate the required power of drawing away of clamper 1 significantly.Owing to can alleviate the required power of drawing away of clamper 1 significantly, therefore, the deflection of mechanisms such as the clamper support arm 2 in the time of can reducing to draw away can alleviate the mechanism vibrations that draws away moment of clamper 1.Thereby can alleviate by the counter-force of portion of mechanism and vibrate the noise that causes.Again, can prevent upspringing of the disc 5 that causes by the vibration of the counter-force of portion of mechanism, prevent the damage of disc 5.And, can make to reduce the mechanism that dynamic retarding compares etc. and oversimplify.Again,,, realize the miniaturization of motor, can use little torque motor etc. so can reduce power consumption because of having alleviated necessary power.Thus, can realize the cost degradation and the miniaturization of disc reproduction apparatus.
Again, in front of the direction of insertion of the disc 5 of the rotary middle spindle O by protuberance 4 being arranged on clamper 1 on the service portion 2a of side and clamper support arm 2, clamper 1 forms heeling condition a side of inserting disc 5 is lifted on being supported in clamper support arm 2 time.Thus, disc 5 and clamper 1 collision can be avoided, and can not inserting or the damage of disc 5 etc. of disc 5 can be avoided.
And, in this example, be provided with the 1st protuberance 4a and the 2nd protuberance 4b that can improve the effect of the 2nd function of the effect that can improve the 1st function.Therefore, the force of using the 1st protuberance 4a to strengthen to utilize lever principle and the distance of fulcrum, can alleviate the required power of drawing away of clamper 1 significantly, the inclination of using the 2nd protuberance 4b then can strengthen the clamper 1 that is supported on the clamper support arm 2 can be avoided disc 5 and clamper 1 collision reliably.
In addition,, be not limited thereto example, can do various distortion without departing from the spirit and scope of the present invention and implement though above-mentioned example is to be applicable to enforcement one example of the present invention.
For example, above-mentioned example is that an example that makes clamper support arm 2 move, clamper 1 is drawn away from turntable 3 has been described, but is not limited to this example.For example, also can be in advance that clamper support arm 2 is fixing, turntable 3 is moved.Perhaps, clamper support arm 2 and turntable 3 are moved together.And clamper support arm 2 or the mobile of turntable 3 are not limited to directly, and also rotate.For example, also can be in advance that clamper support arm 2 is fixing as shown in Figure 7, make turntable 3 rotatable, with clamper 1 when turntable 3 draws away, clamper 1 and clamper support arm 2 are relatively moved.With clamper 1 when turntable draws away, by relatively moving of clamper 1 and clamper support arm 2, it is contacted at protuberance 4 places, dependence draws away clamper 1 from turntable 3 moment loading, the same with above-mentioned example, utilize lever principle can alleviate the required power of drawing away of clamper 1 significantly.
Again, the shape of protuberance 4 is not limited to above-mentioned example one example.For example, as shown in Figure 8, also can on the service portion 2a of clamper support arm 2, the protuberance 4d of the convex that contacts with the point of clamper 1 be set.In addition, in this occasion, the protuberance 4d of convex number is set and the place does not limit, as long as can suitably satisfy the 1st function and the 2nd function of the protuberance 4 that has illustrated in the above-mentioned example.As shown in Figure 9, also can on the service portion 2a of clamper support arm 2, the stair-stepping protuberance 4e that contacts with the face of clamper 1 be set again.
Again, also can be with the whole or local formation heeling condition of the service portion 2a of clamper support arm 2 so that in front of the disc direction of insertion of clamper 1 side separate from this disc direction of insertion.For example, as shown in figure 10, also can make the local dip of service portion 2a, protuberance 4b and rake 4c are set on the service portion 2a of clamper support arm 2.In this occasion, just become the easy structure that the 1st protuberance 4a is omitted in the above-mentioned example.As long as the 1st function and the 2nd function of the protuberance 4 that has illustrated in the previous example can suitably be satisfied in the position of the protuberance 4b of this occasion.As shown in figure 11, also can adopt and make roughly all the tilting of service portion 2a again,, with the structure of protuberance 4 as rake 4c.Even this occasion, with clamper 1 when turntable 3 draws away, relatively move by clamper 1 and turntable 3, clamper 1 carries out the part with clamper support arm 2 at rake 4c place and contacts.Thus, the moment loading that clamper 1 is drawn away from turntable 3 utilizes lever principle can alleviate the required power of drawing away of clamper 1 significantly in clamper 1.Again, be positioned on the rake 4c when being supported on the clamper support arm 2 owing to clamper 1, therefore, clamper 1 has formed the inclination of certain orientation, can avoid the disc 5 and clamper 1 collision that are inserted into.
Again, protuberance 4 is not limited on the service portion 2a that is arranged on clamper support arm 2, for example, as shown in figure 12, also can be arranged on the carrying plane 1a side of clamper 1.In addition, because of clamper rotates with disc 5, so need to consider the problem of gravity balance.In order to obtain gravity balance, for example can be shown in the dotted line of symbol 22 expression, according to being set, protuberance 4 such sizes flange part 9a that prunes gets final product.Again, also can be shown in the double dot dash line of symbol 23 expressions, it is the form of heavy wall that clamper 1 is formed the symmetric position place.
As shown in figure 13, also can adopt protuberance 4 on the carrying plane 1a that will be arranged on clamper 1 as the structure of rake 4f again.In addition, also can on the whole or part of the carrying plane 1a of clamper 1, not shown convex and stair-stepping protuberance 4 be set.In this occasion, clamper 1 integral body preferably also is the shape that can obtain gravity balance.
Again, as carrying plane 1a that when drawing away clamper 1, makes clamper 1 and the local measure that contacts of the service portion 2a of clamper support arm 2, except protuberance 4 is set, for example also can adopt following structure, that is: the carrying plane 1a of clamper 1 is contacted with the service portion 2a of clamper support arm 2 is local, and clamper support arm 2 or turntable 3 are rotated, thus clamper 1 is drawn away.Contact with the service portion 2a of clamper support arm 2 is local by the carrying plane 1a that makes clamper 1, under the effect of the power that draws away usefulness of the clamper 1 of this contact portion, in the clamper 1 that is attracted on the turntable 3, utilize lever principle clamper 1 can be drawn away from turntable 3 moment loading.In this occasion, also can alleviate clamper 1 significantly and draw away required power.
Learn from above explanation, in the described clamping device of the 1st technical scheme, since the service portion of the clamper support arm that clamper is contacted with clamper when turntable draws away or the clamper that contacts with this service portion the either party of carrying plane protuberance is set, therefore, utilize lever principle can alleviate the required power of drawing away of clamper significantly.Thus, the deflection of mechanisms such as the clamper support arm in the time of can reducing to draw away can alleviate the mechanism vibrations that draws away moment of clamper.Thereby, can alleviate by the counter-force of portion of mechanism and vibrate the noise that causes.Again, can prevent upspringing of the disc that causes by the vibration of the counter-force of portion of mechanism, prevent the damage of disc.And, can make to reduce the mechanism that dynamic retarding compares etc. and oversimplify.Again,,, realize the miniaturization of motor, can use little torque motor etc. so can reduce power consumption because of having alleviated necessary power.Thus, can realize the cost degradation and the miniaturization of disc reproduction apparatus.
In the described clamping device of the 2nd technical scheme, because protuberance is set on the service portion of side in front of the direction of insertion of disc of rotary middle spindle of clamper and clamper support arm, therefore, clamper has formed the heeling condition that a side of inserting disc is lifted when being supported by the clamper support arm.Thus, when being inserted, disc can avoid the collision of disc and clamper.
In the described clamping device of the 3rd technical scheme, because the whole or local formation heeling condition of protuberance makes the height of protuberance from inboard decline of disc direction of insertion front side direction, therefore, clamper can be bearing on the clamper support arm under the heeling condition that a side that has formed the insertion disc is lifted with being stabilized.Thus, when inserting disc, can avoid disc and clamper collision.
Adopt the described clamping device of the 4th technical scheme, because when the supporting clamper, the heeling condition that the direction of insertion front side of clamper is separated with the whole or local formation of the service portion of the clamper support arm of clamper contact from this disc direction of insertion, therefore, utilize rake that the clamper posture that is bearing on the clamper support arm is limited, can avoid the disc and the clamper collision that are inserted into reliably.
Also can utilize lever principle to alleviate the required power of drawing away of clamper significantly again.Thus, the deflection of mechanisms such as the clamper support arm in the time of can reducing to draw away can alleviate the mechanism vibrations that draws away moment of clamper.Thereby, can alleviate by the counter-force of portion of mechanism and vibrate the noise that causes.Again, can prevent upspringing of the disc that causes by the vibration of the counter-force of portion of mechanism, prevent the damage of disc.And, can make to reduce the mechanism that dynamic retarding compares etc. and oversimplify.Again,,, realize the miniaturization of motor, can use little torque motor etc. so can reduce power consumption because of having alleviated necessary power.Thus, can realize the cost degradation and the miniaturization of disc reproduction apparatus.
Claims (4)
1, a kind of clamping device, have mounting and rotate turntable that disc uses, described disc is clamped in and described turntable between and clamper that keeps and the clamper support arm that in the described clamper of supporting, breaks away from described disc, it is characterized in that, protuberance is set when described turntable draws away at the service portion of the described clamper support arm that described clamper is contacted with described clamper or the either party of the carrying plane of the described clamper that contacts with this service portion.
2, clamping device as claimed in claim 1 is characterized in that, described protuberance is set on the service portion of side in front of the direction of insertion of described disc of rotary middle spindle of described clamper and described clamper support arm.
3, clamping device as claimed in claim 1 or 2 is characterized in that, the whole or local formation of described protuberance makes the protrusion height of described protuberance from the inboard heeling condition that descends of disc direction of insertion front side direction.
4, a kind of clamping device, have turntable that the mounting disc uses, described disc is clamped in and described turntable between and the clamper support arm that keeps clamper and in the described clamper of supporting, break away from from described disc, it is characterized in that the heeling condition that the whole or local formation of the service portion of the described clamper support arm that contacts with described clamper makes the direction of insertion front side of described clamper separate from this disc direction of insertion when the described clamper of supporting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP142989/01 | 2001-05-14 | ||
| JP2001142989A JP2002334495A (en) | 2001-05-14 | 2001-05-14 | Clamping mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1385850A true CN1385850A (en) | 2002-12-18 |
| CN100370534C CN100370534C (en) | 2008-02-20 |
Family
ID=18989195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021200270A Expired - Fee Related CN100370534C (en) | 2001-05-14 | 2002-05-14 | Holding mechanism |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2002334495A (en) |
| CN (1) | CN100370534C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721822A (en) * | 2007-10-29 | 2012-10-10 | 松下电器产业株式会社 | Analysis device and analysis apparatus and analysis method using the same |
| CN104299627A (en) * | 2013-07-17 | 2015-01-21 | 索尼电脑娱乐公司 | Disk drive |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007018659A (en) | 2005-07-11 | 2007-01-25 | Funai Electric Co Ltd | Disk device |
| KR101020803B1 (en) | 2009-06-02 | 2011-03-09 | 엘지이노텍 주식회사 | Clamping device of spindle motor |
| JP4608006B1 (en) * | 2009-08-19 | 2011-01-05 | オリオン電機株式会社 | Recording / reproducing apparatus having a clamper moving structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1176457A (en) * | 1996-09-11 | 1998-03-18 | 德利信电机株式会社 | Disk replaying device |
| JPH10241248A (en) * | 1997-02-27 | 1998-09-11 | Alps Electric Co Ltd | Disk driving device |
-
2001
- 2001-05-14 JP JP2001142989A patent/JP2002334495A/en active Pending
-
2002
- 2002-05-14 CN CNB021200270A patent/CN100370534C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102721822A (en) * | 2007-10-29 | 2012-10-10 | 松下电器产业株式会社 | Analysis device and analysis apparatus and analysis method using the same |
| CN102721822B (en) * | 2007-10-29 | 2013-11-06 | 松下电器产业株式会社 | Instrument drive device for analysis |
| CN104299627A (en) * | 2013-07-17 | 2015-01-21 | 索尼电脑娱乐公司 | Disk drive |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100370534C (en) | 2008-02-20 |
| JP2002334495A (en) | 2002-11-22 |
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