CN1926617A - Chucking device - Google Patents
Chucking device Download PDFInfo
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- CN1926617A CN1926617A CN 200480042268 CN200480042268A CN1926617A CN 1926617 A CN1926617 A CN 1926617A CN 200480042268 CN200480042268 CN 200480042268 CN 200480042268 A CN200480042268 A CN 200480042268A CN 1926617 A CN1926617 A CN 1926617A
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- claw
- claw portion
- chucking device
- propeller boss
- described claw
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Abstract
A chucking device holding a disk by pressing a disk center hole part by a plurality of claw bodies movably installed on a turntable in the radial direction of a hub body. The chucking device comprises elastic members energizing the claw bodies to the outer side of the hub body. The claw bodies further comprise claw parts in contact with the disk and claw side stoppers restricting the movement thereof to the outer side by the elastic members. The hub body further comprises a claw opening part allowing a claw part to be projected to the outside and a hub side stopper in contact with the claw side stopper. The chucking device is characterized in that the claw parts in a standby state in which the disk is not held by the claw parts are positioned lower than the claw parts in a recording/regenerative state in which the disk is held by the claw parts.
Description
Technical field
The present invention relates to the optical disc apparatus that the recording medium to the plate-like of CD or DVD etc. writes down or reads, relate in particular to the chucking device of the optical disc apparatus of the so-called suction that is suitable for directly to insert or directly to discharge from the outside CD.
Background technology
Existing optical disc apparatus to be adopted CD is placed on pallet or the rotating disk, this pallet or rotating disk are installed in load mode in the device body.
But in such load mode, the needed space of pallet or rotating disk has formed restriction to the slimming that makes the optical disc apparatus body.
On the other hand, proposed following scheme, that is, made conveying roller and cd side butt, suck the mode (for example patent documentation 1) of CD for the optical disc apparatus of suction.
Patent documentation 1: the spy opens flat 7-220353 communique
But, for example in the suction that patent documentation 1 is proposed,, therefore, must add the width of bigger device owing to use the conveying roller longer than cd diameter, and, owing to this conveying roller, thickness also will increase.
Therefore, in the optical disc apparatus of such suction, be difficult to realize the slimming and the miniaturization of optical disc apparatus body.
Therefore, the purpose of this invention is to provide the chucking device that to realize slimming and miniaturization.
Especially, the objective of the invention is to be conceived to dwindle, the chucking device of the slimming that can realize optical disc apparatus is provided in the height space that is used to insert CD under the holding state that CD is not inserted optical disc apparatus, above the rotating disk.
Summary of the invention
The chucking device of first embodiment of the invention, diametric(al) at the propeller boss body of turntable is provided with a plurality of claw bodies movably, push cd center hole portion with the claw body, keep CD, setting with respect to the propeller boss body to the elastomeric element of claw body to foreign side's reinforcing, the claw body has the claw portion that contacts with CD, with the restricted passage elastomeric element and the claw side retainer that outward direction moves, the propeller boss body has claw portion can be to the outstanding claw peristome of foreign side, with with the propeller boss side retainer of claw side retainer butt, the position that makes CD not remain on the claw portion under the holding state of claw portion is lower than CD and remains on the record in the claw portion or the position of the claw portion under the reading state.
According to present embodiment, do not insert the height space that is used to insert CD under the holding state of optical disc apparatus, above the rotating disk owing to can dwindle at CD, therefore can realize the slimming of optical disc apparatus.
Second embodiment of the present invention is in the described chucking device of first embodiment, and elastomeric element uses volute spring, the butt position of claw side retainer and propeller boss side retainer is arranged on the more below of helical spring center line.
According to present embodiment, do not remain at CD under the holding state of claw portion, can be to the volute spring reinforcing, make the front end of claw portion towards the below.
The 3rd embodiment of the present invention is arranged on the butt position of claw side retainer and propeller boss side retainer the interior side of claw portion in the described chucking device of second embodiment.
According to present embodiment, be arranged on the interior side of claw portion by butt position with claw side retainer and propeller boss side retainer, can make on the position of more foreign side of claw portion and not have barrier, claw portion is fully descended downwards, simultaneously, can dwindle position that CD do not remain on the claw portion under the holding state in the claw portion, remain on the record in the claw portion or the position overhang forwards of the claw portion under the reading state than CD, the claw body can move in the propeller boss body easily when inserting CD.
The 4th embodiment of the present invention is arranged on claw side retainer the sidepiece of claw portion in the described chucking device of second embodiment.
According to present embodiment, compare with the situation that the claw retainer is arranged on the below of claw portion, can reduce the height of claw portion.
The 5th embodiment of the present invention in the described chucking device of first embodiment, make the claw portion under the holding state that CD is not remained on claw portion the position, be lower than the top height of propeller boss.
According to present embodiment, can not rely on the height of claw portion and dwindle the height space that is used to insert CD above the rotating disk.
The 6th embodiment of the present invention in the described chucking device of first embodiment, make CD remain on the record of claw portion or the claw portion under the reading state the position, be higher than propeller boss above.
According to present embodiment,, also can carry out being installed of CD effectively even dwindle the height space that is used to insert CD of rotating disk top.
The 7th embodiment of the present invention is in the described chucking device of first embodiment, remain at CD under the record or reading state of claw portion, under the situation of the thin thickness of CD, compare with the situation that CD is thick, reduce in the position of claw portion when foreign side moves of claw portion.
According to present embodiment, even strengthen the diametric shift motion of claw body for the inequality of corresponding disk thickness to the propeller boss body, also can reduce the claw height, do not insert under the holding state of optical disc apparatus at CD, can dwindle the height space that is used to insert CD above the rotating disk, remain under the record or reading state of claw portion at CD, can dwindle claw outstanding upward height above maintained CD, therefore, can realize the slimming of optical disc apparatus.
The 8th embodiment of the present invention is in the described chucking device of the 7th embodiment, be arranged on the upwards guide surface of the front side of claw body, with the downward supporting surface that is arranged on the locational propeller boss body that upwards guide surface is relative, be provided with to have the degree of tilt that front side reduces.
According to present embodiment, can shorten the CD press surface of claw body length, can reduce the claw height.
The chucking device of the 9th embodiment of the present invention, on the diametric(al) of the propeller boss body of turntable, a plurality of claw bodies are set movably, utilize the claw body to push cd center hole portion, keep CD, setting with respect to the propeller boss body to the elastomeric element of claw body to foreign side's reinforcing, the claw body has the claw portion that contacts with CD, with the restricted passage elastomeric element and the claw side retainer that outward direction moves, the propeller boss body has claw portion can be to the outstanding claw peristome of foreign side, with with the propeller boss side retainer of claw side retainer butt, with the restriction claw body claw side retainer that outward direction moves by elastomeric element, be arranged under the holding state that CD is not remained on claw portion, the more front side of the bottom of claw body and contact site lower member makes the propeller boss side retainer with claw side retainer butt form down the lateral deviation dip plane of side on the front.
According to present embodiment, can reduce the leading section of the claw body under the holding state, can dwindle the height space that is used to insert CD of rotating disk top.
The tenth embodiment of the present invention is in the described chucking device of the 7th embodiment, lower position at the leading section of claw portion is provided with downward guide surface, upwards supporting surface is set on the propeller boss body of the position relative with downward guide surface, at least constitute downward guide surface with first dip plane and second dip plane, when pushing claw portion from top by CD, during center pit portion that CD is inserted as the leading section of claw portion in first dip plane or before the center pit portion that will insert CD with the face of supporting surface butt upwards, second dip plane is inserted as the leading section of claw portion after the center pit portion of CD and the face of supporting surface butt upwards, make second dip plane with respect to the angle of pushing direction less than first dip plane, by push claw portion from top, guide surface is along upwards supporting surface slip downwards, claw portion inwardly side moves.
According to present embodiment, can corresponding load variations, can carry out stable action.
The 11 embodiment of the present invention is in the described chucking device of the 7th embodiment, elastomeric element uses volute spring, the butt position of claw side retainer and propeller boss side retainer is arranged on the more below of helical spring center line, simultaneously, is arranged on the interior side of claw portion.
According to present embodiment, can be to the volute spring reinforcing, make the front end of claw portion towards the below.
The 12 embodiment of the present invention is in the described chucking device of first embodiment, with the lower surface formation circular arc of claw body.
According to present embodiment, can stably carry out the vertical motion of claw portion front end.
The 13 embodiment of the present invention is in the described chucking device of first embodiment, CD remain on the record of claw portion or the claw portion under the reading state above, with compare above the claw portion under the holding state, have the high degree of tilt in front side with respect to cd side.
According to present embodiment, can dwindle the height space that is used to insert CD of rotating disk top, simultaneously, CD effectively can be installed.
The 14 embodiment of the present invention is in the described chucking device of the 13 embodiment, interior side on claw portion is provided with taper surface, form the face lower degree of tilt of inboard than top the place ahead of claw portion, remaining at CD under the record or reading state of claw portion, is the inboard degree of tilt that descends with respect to cd side, taper surface.
According to present embodiment, the height of the claw in the time of can guaranteeing to be installed by taper surface also can be installed effectively even reduce the height of claw.
The 15 embodiment of the present invention is the optical disc apparatus that utilizes the chucking device of the first to the 14 embodiment, constitute casing by base body and lid, the CD that forms direct insertion CD in the front of casing inserts mouth, keep spindle drive motor and adapter by the transverse arm that is arranged on the base body, on motor, have turntable, make transverse arm with respect to the approaching separation of base body.
According to present embodiment because can dwindle under CD does not insert the holding state of optical disc apparatus, height space that being used to above the rotating disk inserted CD, therefore be suitable for directly inserting or directly discharging the optical disc apparatus of the so-called suction of CD from the outside.
Description of drawings
Fig. 1 is the upper face side stereographic map of propeller boss body of the chucking device of one embodiment of the present of invention.
Fig. 2 is the following side stereographic map of this propeller boss body.
Fig. 3 is the front elevation of this propeller boss body.
Fig. 4 is the rear view of this propeller boss body.
Fig. 5 is the side view of this propeller boss body.
Fig. 6 is the A-A cut-open view of Fig. 3.
Fig. 7 is the B-B cut-open view of Fig. 3.
Fig. 8 is the following side stereographic map of claw body of the chucking device of present embodiment.
Fig. 9 is the top foreign side side stereographic map of this claw body.
Figure 10 is the top interior square side stereographic map of this claw body.
Figure 11 is the side view of this claw body.
Figure 12 is the side sectional view of this claw body.
Figure 13 is the front elevation of this claw body.
Figure 14 is the rear view of this claw body.
Figure 15 is the main position cut-open view that expression holding state or CD have just injected this chucking device of the state in the optical disc apparatus.
Figure 16 is that expression makes the main position cut-open view of this chucking device from this chucking device of the state of state behind CD side rising predetermined distance of Figure 15.
Figure 17 is the main position cut-open view that the leading section of expression claw portion inserts this chucking device of the state behind the center pit of CD.
Figure 18 is that expression makes the main position cut-open view of this chucking device from this chucking device of the state of state behind CD side rising predetermined distance of Figure 17.
Figure 19 is the main position cut-open view of expression from this chucking device of the state of state after the process stipulated time of Figure 18.
Figure 20 is the main position cut-open view of expression from this chucking device of the state of state after the process stipulated time of Figure 19.
Figure 21 is the main position cut-open view of this chucking device of the state after the release that is installed of the thin CD of expression.
Figure 22 is the main position cut-open view of this chucking device of state of the release that is installed of the CD of expression intermediate gauge.
Figure 23 is the main position cut-open view of this chucking device of state of the release that is installed of the thick CD of expression.
Figure 24 is the main position vertical view of base body of the optical disc apparatus of present embodiment.
Figure 25 is the main position sectional view of this optical disc apparatus.
Figure 26 is the side view of the secondary sliding part of this optical disc apparatus.
Figure 27 be the expression present embodiment optical disc apparatus begun to pass through the main position vertical view of the base body of the state after first stipulated time from the CD action that is installed.
Figure 28 is the main position sectional view under this state.
Figure 29 is the side view of the secondary sliding part of this state.
To be expression passed through the main position vertical view of the base body of the state after second stipulated time from the state of Fig. 4 to Figure 30.
Figure 31 is the main position sectional view of this state.
Figure 32 is the side view of the secondary sliding part of this state.
To be expression passed through the main position vertical view that the 3rd stipulated time, transverse arm are in the base body of propradation from the state of Fig. 7 to Figure 33.
Figure 34 is the main position sectional view under this state.
Figure 35 is the side view of the secondary sliding part under this state.
To be expression passed through the main position vertical view of base body of the record reading state of the 4th stipulated time, CD from the state of Figure 10 to Figure 36.
Figure 37 is the main position sectional view of this state.
Figure 38 is the side view of the secondary sliding part of this state.
Embodiment
Below describe with regard to the chucking device of one embodiment of the present of invention.
The propeller boss body that at first just constitutes the chucking device of present embodiment describes.
Fig. 1 is the upper face side stereographic map of propeller boss body of the chucking device of expression present embodiment, Fig. 2 is the following side stereographic map of this propeller boss body, Fig. 3 is the front elevation of this propeller boss body, Fig. 4 is the rear view of this propeller boss body, Fig. 5 is the side view of this propeller boss body, Fig. 6 is the A-A cut-open view of Fig. 3, and Fig. 7 is the B-B cut-open view of Fig. 3.
The propeller boss body 150 of rotating disk by above discoidal 151 and the upright side 152 that is located at above this 151 periphery form disc shape.151 central part forms the motor reel usefulness hole 153 of the turning axle of chimeric spindle drive motor in the above.
Three claws peristome 154 is set on propeller boss body 150 radially.These claws are arranged on scope from top 151 outer thoughtful side 152 with peristome 154, and the lateral opening width on the side 152 is greater than the top A/F on top 151 peripheries.
Rear side at propeller boss body 150 is provided with three to forming the volute spring stopper section 155 (コ イ Le ends め) that motor reel is given prominence to the periphery of the circumferential rib 153A in hole 153.These volute spring stopper sections 155 are provided with peristome 154 radially towards claw.
And, the connection rib 150A of a plurality of connection circumferential rib 153A and side 152 is set in the rear side of propeller boss body 150.And, form the claw receiving space 150B that claw body 170 is set by a pair of connection rib 150A, the claw that makes the axis direction that comprises a volute spring stopper section 155 and be positioned at this volute spring stopper section 155 separates with space and other spaces of peristome 154.
The side is side directed 156 in being provided with on the relative inner peripheral surface of a pair of connection rib that forms claw receiving space 150B, just constitutes by propeller boss side retainer 156A with in the dip plane that the interior side of this propeller boss side retainer 156A increases gradually towards the center of this propeller boss body 150 for side directed 156 in this.Should constitute by first dip plane and second dip plane at least for side directed 156 interior side.
On the other hand, the claw in side 152 is with the supporting surface 157 that makes progress of formation above the both sides of peristome 154, and the claw in 151 is with the downward supporting surface 158 of following formation of the both sides of peristome 154 in the above.
The claw body that below just constitutes the chucking device of present embodiment describes.
Fig. 8 is the following side stereographic map of claw body of the chucking device of present embodiment, Fig. 9 is the top foreign side side stereographic map of this claw body, Figure 10 is the top interior square side stereographic map of this claw body, Figure 11 is the side view of this claw body, Figure 12 is the side sectional view of this claw body, Figure 13 is the front elevation of this claw body, and Figure 14 is the rear view of this claw body.
On the interior side of claw portion 171, constitute the rear end face 173 that makes the volute spring butt, on this rear end face 173, have the volute spring stopper section 175 that forms by projection.And, form recess 173A around the upper side of the volute spring stopper section 175 in rear end face 173.By on the rear end face 173 of the position of helical spring top institute butt recess 173A being set, the angle of the face (rear end face 173) of face (recess 173A) that makes helical spring top institute butt and helical spring bottom institute butt is different.
And under the state of the recess 173A of helical spring top and rear end face 173 butt, the face of recess 173A is vertical with helical spring center line.
The lower surface 174 of guide portion 172 constitutes circular arc.And claw side retainer 176 is arranged on the interior side of guide portion 172 highlightedly to the side.
On sidepiece as the claw portion 171 of the foreign side of guide portion 172, on the lower position of the leading section 171A of claw portion 171, have downward guide surface 177, keeping having upwards guide surface 178 on the high position of face 171C than CD.In addition, under the state that claw body 170 is installed on the propeller boss body 150, downwards guide surface 177 is arranged on the position relative with supporting surface upwards 157, and by push claw portion 170 from top, guide surface 177 is along upwards supporting surface 157 slips downwards.And under the state that claw body 170 is installed on the propeller boss body 150, upwards guide surface 178 is arranged on the position relative with downward supporting surface 158.And making upwards, the foreign side end of guide surface 178 is higher than this upwards guide surface 178.And guide surface 177 is made of first dip plane and second dip plane at least downwards.
Below utilize Figure 15 to Figure 20 to be described in detail with regard to the structure of the chucking device of present embodiment and the action that is installed.
Figure 15 is the main position cut-open view that expression holding state or CD have just inserted this chucking device of the state in the optical disc apparatus.
Between the volute spring stopper section 175 of the volute spring stopper section 155 of propeller boss body 150 and claw body 170, volute spring 180 is set as elastomeric element.That is, claw body 170 is by the foreign side reinforcing of these volute spring 180 quilts to propeller boss body 150.Volute spring 180 makes the foreign side end of volute spring stopper section 175 sides be positioned at the more below of the square end portion of volute spring stopper section 155 sides.
And, make claw side retainer 176 and propeller boss side retainer 156A butt, prevent that claw body 170 is outstanding to foreign side.At this, the butt position that makes claw side retainer 176 and propeller boss side retainer 156A the square position that more is positioned at propeller boss body 150 than claw portion 171, be positioned at volute spring 180 center line below.
As shown in figure 15, under the state that CD has just been inserted in the optical disc apparatus, the claw portion 171 of claw body 170 is arranged on below top 151 the height of propeller boss 150.And, the recess 173A butt of the top of the foreign side end of volute spring 180 and rear end face 173.Not inserting also is identical under the holding state of CD.
Figure 16 is that expression makes the main position cut-open view of this chucking device from this chucking device of the state of state behind CD side rising predetermined distance of Figure 15.
By the rising of chucking device, claw portion 171 is pushed from top 171B by CD.
Like this, by pushing claw portion 171 from top 171B, claw side retainer 176 slides along side directed 156 of interior side.That is, claw side retainer 176 slides gradually towards the interior side of propeller boss body 150 with increasing.On the other hand, along with moving of this claw side retainer 176, guide surface 177 is along upwards supporting surface 157 slips downwards.Therefore, the interior side to propeller boss body 150 moves claw body 170 by the slip of claw side retainer 176 and downward guide surface 177.In addition, by pushing claw portion 171 from top 171B, the recess 173A of rear end face 173 is left on the top of the foreign side end of volute spring 180, the bottom of the foreign side end of volute spring 180 and rear end face 173 butts.
Figure 17 is the main position cut-open view that the leading section of expression claw portion inserts this chucking device of the state behind the center pit of CD, Figure 18 is that to make the main position cut-open view of this chucking device from this chucking device of the state of state behind CD side rising predetermined distance of Figure 17, Figure 19 be that expression is from the state of Figure 18 main position cut-open view through this chucking device of the state after the stipulated time in expression.
Figure 17 represents the state after the leading section 171A of claw portion 171 inserts the center pit of CD.If this chucking device is further risen in the CD side from the state of Figure 17, then as shown in figure 18, the leading section 171A of claw portion 171 will slide along the inner peripheral surface of the center pit of CD.In the present embodiment, the interaction of claw portion 171 and propeller boss body 150 makes this chucking device rise to position shown in Figure 180 to the CD side.In position shown in Figure 180, promptly since the mutual relationship of claw portion 171 and propeller boss body 150 under the ultimate limit state that the CD side rises, the upwards guide surface 157 of the downward guide surface 177 of claw portion 171 and propeller boss body 150 contacts, the lower surface 174 of claw portion 171 contacts with the supporting surface 31B of rotor-side, and the leading section 171A of claw portion 171 contacts with the inner peripheral surface of cd center hole.By acting force or the leading section 171A of claw portion 171 and the relation of the frictional resistance between the CD of suitably setting volute spring 180, from the state of Figure 18, the leading section 171A of this chucking device action, claw portion 171 is just slided along the center bore inner wall face of CD.In the later action in position shown in Figure 180, the downward guide surface 177 of claw portion 171 leaves the upwards guide surface 157 of propeller boss body 150.And under the state that the inner peripheral surface of the leading section 171A of claw portion 171 and cd center hole keeps in touch, leading section 171A little by little moves along the inner peripheral surface of cd center hole upward.On the other hand, under the state that the supporting surface 31B of the lower surface 174 of claw portion 171 and rotor-side keeps in touch, the little by little inside side's side shifting of contact point of lower surface 174 and supporting surface 31B.
At this, as mentioned above, side directed 156 of interior side is made of first dip plane and second dip plane at least.First dip plane be claw portion 171 by CD when push on top, the leading section 171A of claw portion 171 insert CD center pit portion the time or be about to insert the face of 176 butts of claw side retainer before the center pit portion of CD, second dip plane is the face that the leading section 171A of claw portion 171 inserts 176 butts of claw side retainer after the center pit portion of CD.Make second dip plane with respect to the angle of pushing direction less than first dip plane.
On the other hand, as mentioned above, guide surface 177 is made of first dip plane and second dip plane at least downwards.First dip plane be the leading section 171A of claw portion 171 insert CD center pit portion the time or be about to insert before the center pit portion of CD and the face of 157 butts of supporting surface upwards, second dip plane is that the leading section 171A of claw portion 171 inserts after the center pit portion of CD and the face of 157 butts of supporting surface upwards.Make second dip plane with respect to the angle of pushing direction less than first dip plane.And, for example constitute first dip plane of downward guide surface 177 with arc surface, constitute second dip plane of downward guide surface 177 with tabular surface.
Like this, by side directed 156 of side in constituting with first dip plane and second dip plane and guide surface 177 downwards, especially can stably carry out from the slip of the center bore inner wall face of the leading section 171A of state card lifting claw 171 shown in Figure 180 and CD.
Figure 20 is the main position cut-open view of expression from this chucking device of the state of state after the process stipulated time of Figure 19.
In Figure 20, the leading section 171A of claw portion 171 is in the top outstanding state of crossing CD, represent to be installed release, formation record or reading state.
When being installed end, the recess 173A butt of the top of the foreign side end of volute spring 180 and rear end face 173.And claw portion 171 is in top 151 the position that is higher than propeller boss body 150.Under the state that finishes that is installed, the CD of claw portion 171 keeps face 171C to contact with the cd center hole upper end, and is when the leading section 171A of claw portion 171 runs off the outer circumferential side of cd center hole, outstanding upward above CD.On the other hand, the upwards guide surface 178 of claw portion 171 contacts with the downward supporting surface 158 of propeller boss, and the lower surface 174 of claw portion 171 contacts with the supporting surface 31B of rotor-side.
Below, utilize Figure 21 to Figure 23 to describe with regard to the action that is installed of the different CD of thickness.
Figure 21 is the main position cut-open view of this chucking device of the done state that is installed of the thin CD of expression, Figure 22 is the main position cut-open view of this chucking device of the done state that is installed of the CD of expression intermediate gauge, and Figure 23 is the main position cut-open view of this chucking device of the done state that is installed of the thick CD of expression.
Under the situation of the thin thickness of CD shown in Figure 21, be that the situation of intermediate gauge is compared with CD shown in Figure 22, when claw body 170 moved to the foreign side of propeller boss body 150, the position of the leading section 171A of claw portion 171 reduced.And, be under the situation of intermediate gauge at CD shown in Figure 22, compare with the situation that CD shown in Figure 23 is thick, when claw body 170 moved to the foreign side of propeller boss body 150, the position of the leading section 171A of claw portion 171 reduced.Like this, according to present embodiment, for the uneven thickness of corresponding CD, even strengthen claw body 170 also can reduce height from claw to the diametric shift motion of propeller boss body 150.
Below, the optical disc apparatus that just is suitable for the chucking device of present embodiment describes.
Figure 24 is the main position vertical view of base body of the optical disc apparatus of present embodiment, and Figure 25 is the main position sectional view of this optical disc apparatus, and Figure 26 is the side view of the secondary sliding part of this optical disc apparatus.
The optical disc apparatus of present embodiment constitutes casing by base body and lid, in the front of this casing baffle plate (ベ ゼ Le) is installed.And the optical disc apparatus of present embodiment is to insert a mouthful optical disc apparatus that directly inserts the suction of CD from the CD that is arranged on the baffle plate.
Form the CD insertion mouth 11 of direct insertion CD in the front face side of base body 10.Transverse arm 30 is set on base body 10.
On transverse arm 30, spindle drive motor 31A is positioned at the central portion of base body 10, and the CD that the scope of moving back and forth of adapter 32 is positioned at spindle drive motor 31A inserts mouthful 11 sides, and the direction of insertion that moves back and forth direction and CD of adapter 32 differently is provided with.At this, the direction of insertion that moves back and forth direction and CD of adapter 32 forms the angle of 40～45 degree.
Below, the main slider 40 and the secondary sliding part 50 of these transverse arm 30 actions are described.
The cam mechanism of transverse arm 30 displacements is made of sliding cam mechanism 51 and lifter cam mechanism 52, is arranged on the secondary sliding part 50.Sliding cam mechanism 51 is formed by the groove of the specified length that the moving direction to secondary sliding part 50 extends, and this groove inserts the direction (X-direction) of mouth 11 step by step near CD from one distolateral (main slider 40 sides) end to other end side end.Be arranged on sliding pin 53 on the transverse arm 30 by in the groove of this sliding cam mechanism 51, sliding, can make transverse arm 30 discharge direction (X-direction) displacement to the insertion of CD.And lifter cam mechanism 52 is formed by the groove of the specified length of extending to the moving direction of secondary sliding part 50, and this groove changes step by step from one distolateral (main slider 40 sides) end to other end side end and the distance of base body 10 (Z wheelbase from).Be arranged on lifter pin 54 on the transverse arm 30 by in the groove of this lifter cam mechanism 52, sliding, can make transverse arm 30 to base body 10 near direction (Z-direction) displacements of leaving.
Distolateral load motor (not having diagram) that is provided with at main slider 40.And one of the driving shaft of this load motor and main slider 40 distolaterally is connected by gear mechanism (not having diagram).
By the driving of this load motor, main slider 40 is slided to length direction (X-direction).And main slider 40 is connected with secondary sliding part 50 by cam lever 70.
This cam lever 70 has following function, that is, with the mobile interlock of main slider 40, secondary sliding part 50 is moved, and by the mobile of secondary sliding part 50 sliding cam mechanism 51 and lifter cam mechanism 52 is moved, and makes transverse arm 30 displacements.
In addition, transverse arm 30 also is supported on the base body 10 by a pair of stationary cam 36A of portion, 36B.The a pair of stationary cam 36A of portion, 36B are arranged between the 34A of stationary cam portion, 34B and the secondary sliding part 50, are preferably disposed on the centre position of the 34A of stationary cam portion, 34B and secondary sliding part 50.The 36A of stationary cam portion, 36B are by forming with the groove of the specified length of spline structure with the 34A of stationary cam portion, 34B.Be arranged on cam pin 37A, 37B on the transverse arm 30 by in the groove of the 36A of this stationary cam portion, 36B, sliding, can make the direction of insertion displacement of transverse arm 30 to CD, simultaneously, can to base body 10 near the direction displacements of leaving.
More than Shuo Ming transverse arm 30, the 34A of stationary cam portion, 34B, 36A, 36B, main slider 40, secondary sliding part 50 and load motor all are arranged on the base body 10, form CD and insert the space between these parts and lid 130.
Below with regard to the guide member of supporting CD with the rod unit of CD action is described.
Near the CD insertion mouth 11 of base body 10 distolateral first a CD guiding piece (not having diagram) that specified length is set.The section that this first CD guiding piece is seen from the CD direction of insertion has
The groove of font.By this groove supporting CD.
On the other hand, insert near mouthfuls 11 another distolateral leading-in pole 80 that is provided with, have the second CD guiding piece 81 at the movable side end of this leading-in pole 80 at the CD of base body 10.The second CD guiding piece 81 is made of columnar roller, is arranged on the movable side end of leading-in pole 80 free to rotately.And, on the roller periphery of the second CD guiding piece 81, form groove, by this groove supporting CD.
For leading-in pole 80,, has rotating fulcrum 82 in the fixation side end so that its movable side end disposes in the mode of moving than fixation side end more close CD insertion mouthful 11 sides.And, the 3rd CD guiding piece 84 of specified length is set between the movable side end of leading-in pole 80 and fixation side end.And leading-in pole 80 has pin 85, slides in the cam path 42 of main slider 40 by this pin 85, and leading-in pole 80 moves.That is, leading-in pole 80 moves near the mode of leaving with spindle drive motor 31A with the second CD guiding piece 81 along with main slider 40 moves.
And, on base body 10, be provided with and discharge bar 100.At one of this discharge bar 100 distolateral movable side end guiding piece 101 is set.And, at another distolateral rotating fulcrum 102 that is provided with of discharging bar 100.In addition, discharging bar 100 moves with the action of main slider 40 in linkage by pin 103 and cam path 43.
And, be provided with in the side relative of base body 10 and discharge bar 110 with discharging bar 100.At one of this discharge bar 110 distolateral movable side end guiding piece 111 is set.And, at another distolateral rotating fulcrum 112 that is provided with of discharging bar 110.In addition, discharging bar 110 similarly moves with the action of discharging bar 100.
On the other hand, the rear side at base body 10 is provided with fixed pin 120.The position of the CD when limiting loading or being installed CD by this fixed pin 120.
As shown in figure 25, casing is made of base body 10 and lid 130, at the central portion of lid 130 peristome 132 is set.The big circular open of center pit that this peristome 132 is radius ratio CDs.Therefore, be than the opening big with the propeller boss body 150 of the chimeric spindle drive motor 31A of the center pit of CD.
Form to the side-prominent deep-draw portion (strand り portion) 133 of base body 10 at the peripheral part of peristome 132.
Below, utilize Figure 24 to Figure 38 to describe with regard to the action mechanism of transverse arm 30.
The cam mechanism among Figure 24 to Figure 26 and the position of pin represent that CD loads the state that finishes.
Figure 27 is beginning to the main position vertical view of the base body that has passed through the state after first stipulated time from the CD action that is installed of optical disc apparatus, Figure 28 is the main position sectional view under this state of expression, and Figure 29 is the side view of the secondary sliding part under this state of expression.
And to be expression passed through the main position vertical view of the base body of the state after second stipulated time again from the state of Figure 27 to Figure 30, and Figure 31 is this state of expression main position sectional view down, and Figure 32 is a side view of representing the secondary sliding part under this state.
And, to be expression passed through the main position vertical view that the 3rd stipulated time, transverse arm are raised to the base body of high state again from the state of Figure 30 to Figure 33, Figure 34 is the main position sectional view under this state of expression, and Figure 35 is the side view of the secondary sliding part under this state of expression.
And, to be expression passed through the main position vertical view of base body of the record reading state of the 4th stipulated time, CD again from the state of Figure 33 to Figure 36, Figure 37 is the main position sectional view under this state of expression, and Figure 38 is the side view of the secondary sliding part under this state of expression.
At first, under the loading done state of CD, as Figure 24 to shown in Figure 26, transverse arm 30 be set at be positioned at rear side, near the position of base body 10 sides.
That is, under this state, sliding pin 53 is positioned at the end of distolateral (main slider 40 sides) of sliding cam mechanism 51.Therefore, transverse arm 30 is set at the position near rear side.And cam pin 35A, 35B are positioned at the other end side end of the groove of the 34A of stationary cam portion, 34B.Therefore, another of transverse arm 30 distolateral (adapter 32 sides) is set at the position near base body 10.And lifter pin 54 is positioned at one distolateral (main slider 40 sides) end of lifter cam mechanism 52.Therefore, one of transverse arm 30 distolateral (spindle drive motor 31A side) is set at the position near base body 10.
Then, under the state after the action that is installed of carrying out for first stipulated time, to shown in Figure 29, transverse arm 30 only moves the first X-axis distance to the direction that CD inserts mouth 11 as Figure 27, simultaneously, distolateral being arranged on from base body 10 of another of transverse arm 30 only left on the position of the first Y-axis distance.
That is, under this state, sliding pin 53 only moves the first Y-axis distance in sliding cam mechanism 51, and transverse arm 30 only moves the first X-axis distance to the direction that CD inserts mouth 11.Therefore, cam pin 35A, 35B move the first X-axis distance to the direction of a distolateral end of the groove of the 34A of stationary cam portion, 34B, another of transverse arm 30 distolateral (adapter 32 sides) be arranged on from base body 10 only leave a Z wheelbase from the position on.And, though lifter pin 54 only moves the first Y-axis distance from one distolateral (main slider 40 sides) end of lifter cam mechanism 52, but the groove in the scope of this first Y-axis distance is owing to be identical height, therefore, one of transverse arm 30 distolateral (spindle drive motor 31A side) is maintained on the position near base body 10.
From the state of Figure 27, further move by main slider 40 to the direction of CD insertion mouth 11, secondary sliding part 50 further moves to the direction of main slider 40.
And, under the state after the action that is installed of further carrying out for second stipulated time from state shown in Figure 27, to shown in Figure 32, another of transverse arm 30 be distolateral to be arranged on from base body 10 and only to leave the 2nd Z wheelbase on the position of (the 2nd Z wheelbase from＞the one Z wheelbase from) as Figure 30.
Promptly, under this state, though sliding pin 53 only moves the second Y-axis distance in sliding cam mechanism 51, but in this moving range, because the groove of sliding cam mechanism 51 and the moving direction (Y direction) of secondary sliding part 50 are provided with abreast, therefore, transverse arm 30 does not move to the direction of CD insertion mouth 11.Therefore, cam pin 35A, 35B do not move in the groove of the 34A of stationary cam portion, 34B yet.And lifter pin 54 only moves the second Y-axis distance in the groove of lifter cam mechanism 52, one distolateral (the spindle drive motor 31A side) that makes transverse arm 30 from base body 10 only move the 2nd Z wheelbases from.
From the state of Figure 30, further move by main slider 40 to the direction of CD insertion mouth 11, secondary sliding part 50 further moves to the direction of main slider 40.
And, under the state after the action that is installed of further carrying out for the 3rd stipulated time from state shown in Figure 30, as Figure 33 to shown in Figure 35, another of transverse arm 30 be distolateral be arranged on from base body 10 the 3rd Z wheelbase farthest from the position on.
Promptly, under this state, though sliding pin 53 only moves the 3rd Y-axis distance in sliding cam mechanism 51, but in this moving range, because the groove of sliding cam mechanism 51 and the moving direction (Y direction) of secondary sliding part 50 are provided with abreast, therefore, transverse arm 30 does not move to the direction of CD insertion mouth 11.Therefore, cam pin 35A, 35B do not move in the groove of the 34A of stationary cam portion, 34B yet.And lifter pin 54 only moves the 3rd Y-axis distance in the groove of lifter cam mechanism 52, make one distolateral (spindle drive motor 31A side) of transverse arm 30 move the 3rd Z wheelbase from (maximum vertical penetration) from base body 10.Under this state, propeller boss body 150 is to the end that is installed of CD.
From the state of Figure 33, further move by main slider 40 to the direction of CD insertion mouth 11, secondary sliding part 50 further moves to the direction of main slider 40.
And to shown in Figure 38, transverse arm 30 inserts mouthfuls 11 direction to CD and moves as Figure 36, simultaneously, the direction of the other end lateral approach base body 10 of transverse arm 30 move, be arranged on a Z wheelbase from the position on.
That is, under this state, sliding pin 53 only moves the 4th Y-axis distance in sliding cam mechanism 51, and transverse arm 30 only moves the second X-axis distance to the direction that CD inserts mouth 11.Therefore, though cam pin 35A, 35B only move the second X-axis distance towards a distolateral end of the groove of the 34A of stationary cam portion, 34B, another of transverse arm 30 distolateral (adapter 32 sides) is highly constant.And lifter pin 54 only moves the 4th Y-axis distance in the groove of lifter cam mechanism 52, one distolateral (spindle drive motor 31A side) of transverse arm 30 moved to the direction of base body 10, be arranged on a Z wheelbase from the position on.
By above action, when CD is left from lid 130, also leave from fixed pin 120, CD is in the reading and recording state like this.
And, when the CD of discharging after installing, drive load motor, main slider 40 is moved to its another distolateral direction, carry out on the contrary with above-mentioned action basically.
According to the present invention, can realize the slimming and the miniaturization of optical disc apparatus.
Especially in the present invention, by dwindle under the holding state that CD is not inserted optical disc apparatus, be used for CD inserted the height space above the rotating disk, can realize the slimming of optical disc apparatus.
Chucking device of the present invention is particularly useful for following optical disc apparatus, and this optical disc apparatus is built-in or be installed in integratedly in the incorporate so-called notebook model personal computer body such as display device, input media and arithmetic processing apparatus.
Claims (15)
1. chucking device is provided with a plurality of claw bodies movably in the diametric(al) of the propeller boss body of turntable, pushes cd center hole portion, keeps CD with above-mentioned claw body, it is characterized in that,
Setting with respect to described propeller boss body to the elastomeric element of described claw body to foreign side's reinforcing,
Described claw body has the claw portion that contacts with described CD and the described elastomeric element of restricted passage and claw side retainer that outward direction moves,
Described propeller boss body have described claw portion can to the outstanding claw of foreign side with peristome and with the propeller boss side retainer of claw side retainer butt,
The position that makes described CD not remain on the described claw portion under the holding state of described claw portion is lower than the position that described CD remains on the described claw portion under record in the described claw portion or the reading state.
2. chucking device as claimed in claim 1 is characterized in that, described elastomeric element uses volute spring, the butt position of described claw side retainer and described propeller boss side retainer is arranged on the more below of described helical spring center line.
3. chucking device as claimed in claim 2 is characterized in that, the butt position of described claw side retainer and described propeller boss side retainer is arranged on the interior side of described claw portion.
4. chucking device as claimed in claim 2 is characterized in that, described claw side retainer is arranged on the sidepiece of described claw portion.
5. chucking device as claimed in claim 1 is characterized in that, make the described claw portion under the holding state that described CD is not remained on described claw portion the position, be lower than the top height of described propeller boss.
6. chucking device as claimed in claim 1 is characterized in that, make described CD remain on the described claw portion under the record of described claw portion or the reading state the position, be higher than described propeller boss above.
7. chucking device as claimed in claim 1, it is characterized in that, remain at described CD under the record or reading state of described claw portion, under the situation of the thin thickness of described CD, compare with the situation that described CD is thick, reduce in the position of described claw portion when foreign side moves of described claw portion.
8. chucking device as claimed in claim 7, it is characterized in that, be arranged on the upwards guide surface of the front side of described claw body,, be provided with to have the degree of tilt that front side reduces with the downward supporting surface that is arranged on the described upwards locational described propeller boss body that guide surface is relative.
9. chucking device is provided with a plurality of claw bodies movably on the diametric(al) of the propeller boss body of turntable, utilize described claw body to push cd center hole portion, keep CD, it is characterized in that,
Setting with respect to described propeller boss body to the elastomeric element of described claw body to foreign side's reinforcing,
Described claw body has the claw portion that contacts with described CD and the described elastomeric element of restricted passage and claw side retainer that outward direction moves,
Described propeller boss body have described claw portion can to the outstanding claw of foreign side with peristome and with the propeller boss side retainer of claw side retainer butt,
With the described claw body of the restriction described claw side retainer that outward direction moves by described elastomeric element, be arranged on the more front side of the bottom and contact site lower member under the holding state that described CD is not remained on described claw portion, described claw body, make the described propeller boss side retainer with described claw side retainer butt form down the lateral deviation dip plane of side on the front.
10. chucking device as claimed in claim 7, it is characterized in that, lower position at the leading section of described claw portion is provided with downward guide surface, upwards supporting surface is set on the described propeller boss body of the position relative with described downward guide surface, at least constitute described downward guide surface with first dip plane and second dip plane, when pushing described claw portion from top by described CD, during center pit portion that described CD is inserted as the leading section of described claw portion in first dip plane or before the center pit portion that will insert described CD with the described upwards face of supporting surface butt, second dip plane is inserted as the leading section of described claw portion after the center pit portion of described CD and the described upwards face of supporting surface butt, make second dip plane with respect to the angle of pushing direction less than first dip plane, by push described claw portion from top, described downward guide surface slides along described upwards supporting surface, inwardly square the moving of described claw portion.
11. chucking device as claimed in claim 7, it is characterized in that described elastomeric element uses volute spring, the butt position of described claw side retainer and described propeller boss side retainer is arranged on the more below of described helical spring center line, simultaneously, be arranged on the interior side of described claw portion.
12. chucking device as claimed in claim 1 is characterized in that, with the lower surface formation circular arc of described claw body.
13. chucking device as claimed in claim 1, it is characterized in that, described CD remain on described claw portion under the record of described claw portion or the reading state above, and compare above the described claw portion under the holding state, have the high degree of tilt in front side with respect to described cd side.
14. chucking device as claimed in claim 13, it is characterized in that, interior side on described claw portion is provided with taper surface, form the lower degree of tilt of face in inboard top the place ahead than described claw portion, remaining at described CD under the record or reading state of described claw portion, is the inboard degree of tilt that descends with respect to described cd side, described taper surface.
15. optical disc apparatus, utilize claim 1 each described chucking device to the claim 14, it is characterized in that, constitute casing by base body and lid, the CD that forms direct insertion CD in the front of described casing inserts mouth, keep spindle drive motor and adapter by the transverse arm that is arranged on the described base body, on described spindle drive motor, have described turntable, make described transverse arm with respect to the approaching separation of described base body.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61018/2004 | 2004-03-04 | ||
| JP2004061014A JP4260654B2 (en) | 2004-03-04 | 2004-03-04 | Chucking device |
| JP61014/2004 | 2004-03-04 | ||
| JP61022/2004 | 2004-03-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1926617A true CN1926617A (en) | 2007-03-07 |
Family
ID=35031622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200480042268 Pending CN1926617A (en) | 2004-03-04 | 2004-11-16 | Chucking device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4260654B2 (en) |
| CN (1) | CN1926617A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271712B (en) * | 2007-03-19 | 2010-09-15 | 日本电产株式会社 | Motor with a chucking device and disk drive apparatus equipped with the same |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4946208B2 (en) | 2006-06-29 | 2012-06-06 | 日本電産株式会社 | Recording medium holding device and motor unit using the same |
| JP4872505B2 (en) | 2006-07-20 | 2012-02-08 | 日本電産株式会社 | Chucking device, brushless motor equipped with this chucking device, and disk drive device |
| JP4535045B2 (en) * | 2006-08-21 | 2010-09-01 | 日本電産株式会社 | Chucking device, motor mounted with this chucking device, and disk drive device |
| JP2008047263A (en) | 2006-08-21 | 2008-02-28 | Nippon Densan Corp | Chucking apparatus, motor mounted with the chucking apparatus, and disk drive device |
| JP4618214B2 (en) * | 2006-08-21 | 2011-01-26 | 日本電産株式会社 | Chucking device, motor mounted with this chucking device, and disk drive device |
| JP2008047265A (en) | 2006-08-21 | 2008-02-28 | Nippon Densan Corp | Chucking apparatus, motor mounted with the chucking apparatus, and disk drive device |
| JP4534256B2 (en) | 2006-11-16 | 2010-09-01 | 日本電産株式会社 | Chucking device, brushless motor and disk drive device |
| JP5076573B2 (en) | 2007-03-19 | 2012-11-21 | 日本電産株式会社 | Motor equipped with chucking device, and disk drive equipped with this motor |
| JP5092476B2 (en) * | 2007-03-19 | 2012-12-05 | 日本電産株式会社 | Motor equipped with chucking device, and disk drive equipped with this motor |
| JP4992497B2 (en) | 2007-03-19 | 2012-08-08 | 日本電産株式会社 | Motor equipped with chucking device, and disk drive equipped with this motor |
| JP2009099224A (en) * | 2007-10-18 | 2009-05-07 | Nippon Densan Corp | Chucking device, motor unit, and disk drive device |
| KR101571897B1 (en) | 2009-01-05 | 2015-11-25 | 주식회사 히타치엘지 데이터 스토리지 코리아 | spindle motor |
| KR101107874B1 (en) * | 2009-03-02 | 2012-01-25 | 니혼 덴산 가부시키가이샤 | Chucking device, motor unit and disk drive apparatus |
| KR101509513B1 (en) * | 2014-04-30 | 2015-04-08 | 엘지이노텍 주식회사 | Clamping device |
-
2004
- 2004-03-04 JP JP2004061014A patent/JP4260654B2/en not_active Expired - Fee Related
- 2004-11-16 CN CN 200480042268 patent/CN1926617A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101271712B (en) * | 2007-03-19 | 2010-09-15 | 日本电产株式会社 | Motor with a chucking device and disk drive apparatus equipped with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005251298A (en) | 2005-09-15 |
| JP4260654B2 (en) | 2009-04-30 |
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