CN1926620A - Chucking device - Google Patents

Chucking device Download PDF

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Publication number
CN1926620A
CN1926620A CN 200480042297 CN200480042297A CN1926620A CN 1926620 A CN1926620 A CN 1926620A CN 200480042297 CN200480042297 CN 200480042297 CN 200480042297 A CN200480042297 A CN 200480042297A CN 1926620 A CN1926620 A CN 1926620A
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CN
China
Prior art keywords
aforementioned
claw
main body
pawl
dip plane
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 200480042297
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Chinese (zh)
Inventor
太田秀彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of CN1926620A publication Critical patent/CN1926620A/en
Pending legal-status Critical Current

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  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

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 a downward guide face is formed on the lower side of the tip part of the claw part, an upward receiving face is formed on the hub body at a position opposed to the downward guide face, the downward guide face is formed of at least a first tilted face and a second tilted face, the first tilted face is brought into the upward receiving face when the claw part is pressed by the disk from the upper side at a time when or before the tip part of the claw part is inserted into the center hole part of the disk, the second tilted face is brought into contact with the upward receiving face after the tip part of the claw part is inserted into the center hole part of the disk, and the second tilted face is reduced in an angle relative to the pressing direction less than the first tilted face.

Description

Clamp device
Technical field
The present invention relates to the enterprising line item of disc recording mediums such as CD and DVD or the dish device of regenerating, particularly, relate to the clamp device of the dish device that is suitable for the so-called suction-type that can dish directly insert from the outside or directly discharge.
Background technology
The dish device in past mostly adopts dish is positioned on carriage or the rotating disk, and described carriage or rotating disk are installed to load mode in the apparatus main body.
But, in this load mode, owing to need carriage or rotating disk, so be limited making aspect the slimming of dish apparatus main body.
On the other hand, as the dish device of suction-type, the scheme (for example, patent documentation 1) that has proposed that conveying roller is contacted with card dish is drawn in.
(patent documentation 1)
Te Kaiping 7-220353 communique
But, for example in the load mode that in patent documentation 1, proposes, owing to adopt than the long conveying roller of dish diameter, so, the width of the expansion instrument of having to, and then because this conveying roller, thickness also can increase.
Thereby, in the dish device of this groove inserted mode, be difficult to seek to coil the slimming or the miniaturization of apparatus main body.
On the other hand, in the dish device in the past, make the dish of claw keep face to contact with the bearing plane up of hub main body, keep face to slide along the bearing plane up of hub main body by the dish that makes claw, the pawl main body is moved along horizontal direction, inwardly the side is pressed into.Therefore, when the insertion dish, the sliding action of pawl main body in the hub main body needs big load.
Therefore, the purpose of this invention is to provide a kind of clamp device, the load when this clamp device can the reduction dish inserts, the variation that can be adapted to load simultaneously can be carried out stable action.
Summary of the invention
The clamp device of first kind of form of implementation of the present invention, be a kind of hub main body at rotating disk in the radial direction a plurality of pawl main bodys can be set movably, the clamp device that utilizes the pawl main body dish to be kept by the center pit portion of platen, wherein, the elastic component that the pawl main body is loaded to foreign side with respect to the hub main body is set, the pawl main body has the claw that contacts with dish and limits the pawl side retainer that moves to foreign side that is caused by elastic component, the hub main body has claw can be to foreign side outstanding pawl peristome and the hub side retainer that contacts with pawl side retainer, on the position below the leading section than claw more leans on, spigot surface down is set, with the hub main body of the position of down spigot surface subtend on, bearing plane up is set, by push claw from top, spigot surface down slides along bearing plane up, and claw inwardly side moves.
According to this form of implementation, by at claw setting spigot surface down, the sliding action of pawl main body in the hub main body carried out smoothly, the load in the time of can alleviating the dish insertion.
Second kind of form of implementation of the present invention, in clamp device according to first kind of form of implementation, will be from the leading section of claw towards the face of below as dish maintenance face, spigot surface down is arranged on the sidepiece of dish maintenance face.
According to this form of implementation, the situation that is arranged on the below of claw with general's spigot surface is down compared, and can reduce the height of claw.
The third form of implementation of the present invention in the clamp device according to second kind of form of implementation, on the pawl main body than high position of dish maintenance face or identical height and position place, is provided with spigot surface down.
According to this form of implementation, can reduce the height of pawl main body.
The 4th kind of form of implementation of the present invention, in the clamp device according to the third form of implementation, the order foreign side end of spigot surface up is higher than this spigot surface up, and the part of down spigot surface is arranged on this part.
According to this form of implementation, can further reduce the height of pawl main body.
The 5th kind of form of implementation of the present invention, in clamp device according to first kind of form of implementation, at least with first dip plane and second dip plane formation spigot surface down, when pushing claw from top with dish, when the center pit portion of the leading section insertion dish of claw or be about to be inserted into dish center pit portion before, with first dip plane as the face that contacts with up bearing plane, after the leading section of claw is inserted into the center pit portion of dish, with second dip plane as the face that contacts with up bearing plane, second dip plane is compared with first dip plane, and is less with respect to the angle of press direction.
According to this form of implementation, the load in the time of can alleviating the dish insertion, simultaneously, the change that can be adapted to load can be carried out stable action.
The 6th kind of form of implementation of the present invention, in clamp device according to first kind of form of implementation, the interior side's side spigot surface that constitutes in the dip plane that the interior quadrate part setting of pawl main body is uprised gradually by the center towards described hub main body, at least square side spigot surface in constituting with first dip plane and second dip plane, when pushing claw from top by dish, when the leading section of claw is inserted into the center pit portion of dish or before being about to be inserted into the center pit portion of dish, with first dip plane as the face that contacts with pawl side retainer, after the leading section of claw is inserted into the center pit portion of dish, with second dip plane as the face that contacts with pawl side retainer, second dip plane is compared with first dip plane, and is less with respect to the angle of press direction.
According to this form of implementation, the change that can be adapted to load can be carried out stable action.
The 7th kind of form of implementation of the present invention in the clamp device according to the 5th kind of form of implementation, constitutes first dip plane of spigot surface down by arc surface, constitutes second dip plane of spigot surface down with tabular surface.
According to this form of implementation, what can stably coil pushes action, simultaneously, after the leading section of claw is inserted into the center pit portion of dish, can impel the claw leading section along sliding rising.
The 8th kind of form of implementation of the present invention, in clamp device according to first kind of form of implementation, at least constitute up bearing plane by first dip plane and second dip plane, when pushing claw from top by dish, when the leading section of claw is inserted into the center pit portion of dish or before being about to be inserted into the center pit portion of dish, with first dip plane as the face that contacts with down spigot surface, after the leading section of claw is inserted into the center pit portion of dish, with second dip plane as the face that contacts with down spigot surface, second dip plane is compared with first dip plane, and is smaller with respect to the angle of press direction.
According to this form of implementation, the load when can the reduction dish inserting, simultaneously, the change that can be adapted to load can be carried out stable action.
The 9th kind of form of implementation of the present invention, in clamp device according to first kind of form of implementation, will be from the leading section of claw towards the face of below as dish maintenance face, spigot surface down is arranged on the sidepiece of dish maintenance face, spigot surface down is set on the pawl main body than high position of dish maintenance face or identical height and position place, with the hub main body of the position of up spigot surface subtend on down bearing plane is set, pawl is arranged on upper surface periphery from the hub main body to the scope of side with peristome, compare with the upper surface open width in the upper surface periphery of peristome with pawl, the lateral opening width that is positioned at the side is bigger, down bearing plane is configured in upper surface open portion both sides below, up bearing plane is configured in lateral opening portion both sides above.
According to this form of implementation, the situation that is arranged on the below of claw with general's spigot surface is down compared, and can reduce the height of pawl main body, simultaneously, can reduce the physical dimension of hub main body.
The of the present invention ten kind of form of implementation, in the clamp device according to the 9th kind of form of implementation, each bearing plane up that is arranged on the both sides of lateral opening portion is connected by the hub main body, configuration dish maintenance face between each bearing plane up.
According to this form of implementation, can form the hub main body littler than center hole portion.
The 11 kind of form of implementation of the present invention in the clamp device according to the 9th kind of form of implementation, adopts disc spring as elastic component, the contact position of pawl side retainer and hub side retainer is arranged on the below of the center line of disc spring.
According to this form of implementation, at the holding state that dish is not kept by claw, the front end of claw can load disc spring towards the below.
The 12 kind of form of implementation of the present invention in the clamp device according to the tenth kind of form of implementation, is arranged on position than the more inner side of claw with the contact position of pawl side retainer and hub side retainer.
According to this form of implementation, be arranged on position by contact position than the more inner side of claw with pawl side retainer and hub side retainer, on position, there is not barrier than the more outer side of claw, claw can be descended downwards fully.
The 13 kind of form of implementation of the present invention in the clamp device according to the tenth kind of form of implementation, is arranged on pawl side retainer the sidepiece of claw.
According to this form of implementation, compare with the situation that pawl side retainer is arranged on the below of claw, can reduce the height of claw.
The 14 kind of form of implementation of the present invention in the clamp device of the 9th kind of form of implementation, coiled record, the reproduced state that is kept by claw, under the situation of the thin thickness that coils, to compare with the situation that disc thickness is thick, claw moves to foreign side, simultaneously, the position step-down of claw.
According to this form of implementation, even strengthen the shift motion of pawl main body accordingly to the radial direction of hub main body with the deviation of disc thickness, also can be with the height control of pawl lower.
The 15 kind of form of implementation of the present invention, in clamp device according to the 14 kind of form of implementation, be arranged on the pawl main body front side spigot surface up and be arranged on bearing plane down with the hub main body of the position of up spigot surface subtend, with the degree of tilt setting of front side step-down.
According to this form of implementation, can shorten the length of the dish press surface of pawl main body, can control the height of pawl lower.
The 16 kind of form of implementation of the present invention, in clamp device according to the 9th kind of form of implementation, compare with the bottom and contact site lower member of pawl main body under the holding state that do not kept of dish by claw, restriction is arranged on front side by the pawl side retainer that moves to foreign side that the elastic component of pawl main body causes, the hub side retainer that will contact with pawl side retainer is as the dip plane of the close front side of downside.
According to this form of implementation, the leading section of the pawl main body of holding state can be reduced, the dish that can reduce the rotating disk top inserts the height space of usefulness.
The 17 kind of form of implementation of the present invention, in clamp device according to the 14 kind of form of implementation, spigot surface down is arranged on the position of leaning on the below than the leading section of claw, up bearing plane is arranged on the hub main body with the position of down spigot surface subtend, at least utilize first dip plane and second dip plane formation spigot surface down, when the utilization dish pushes claw from top, when the center pit portion of the leading section insertion dish of claw or before being about to be inserted into the center pit portion of dish, with first dip plane as the face that contacts with up bearing plane, after the leading section of claw is inserted into the center pit portion of dish, with second dip plane as the face that contacts with up bearing plane, second dip plane is compared with first dip plane, angle with respect to press direction is less, by push claw from top, spigot surface down slides along bearing plane up, and claw inwardly side moves.
According to this form of implementation, the change that can be adapted to load can be carried out stable action.
The 18 kind of form of implementation of the present invention, in clamp device according to the 14 kind of form of implementation, adopt disc spring as elastic component, the contact position of pawl side retainer and hub side retainer is arranged on the below of the center line of disc spring, be arranged on the interior side of claw simultaneously.
According to this form of implementation, the front end of claw can load disc spring downwards.
Dish device according to the 19 kind of form of implementation of the present invention, adopt according to clamp device from the first to the 18 kind of form of implementation, wherein, constitute the casing external packing by base body and lid, in the front of casing external packing, the dish that forms direct insertion dish inserts mouth, utilizes the crossbeam that is arranged on the base body to keep Spindle Motor and adapter, outfit rotating disk on Spindle Motor, make crossbeam approaching, away from base body.
According to this form of implementation, the load in the time of can alleviating the dish insertion, simultaneously, the change that can be adapted to load can be carried out stable action, so, be suitable for from the outside directly insertion dish or directly the dish device of the so-called suction-type of discharge dish.
Description of drawings
Fig. 1 is the upper face side skeleton view of the hub main body of clamp device according to an embodiment of the invention.
Fig. 2 is the following side perspective view of this hub main body.
Fig. 3 is the front elevation of this hub main body.
Fig. 4 is the rear view of this hub main body.
Fig. 5 is the side view of this hub main body.
Fig. 6 is the A-A cut-open view among Fig. 3.
Fig. 7 is the B-B cut-open view among Fig. 3.
Fig. 8 is the following side perspective view according to the pawl main body of the clamp device of present embodiment.
Fig. 9 is the top foreign side side perspective view of this pawl main body.
Figure 10 is the top interior square side perspective view of this pawl main body.
Figure 11 is the side view of this pawl main body.
Figure 12 is the side view cutaway drawing of this pawl main body.
Figure 13 is the front elevation of this pawl main body.
Figure 14 is the rear view of this pawl main body.
Figure 15 is the major part cut-open view that is illustrated in holding state or coils this clamp device of the state after just being inserted in the dish device.
Figure 16 represents to make the major part cut-open view of this clamp device at this clamp device of the state of the distance of dish side rising regulation from the state of Figure 15.
Figure 17 is the major part cut-open view that the leading section of expression claw is inserted into this clamp device of the state in the center pit of dish.
Figure 18 represents to make the major part cut-open view of this clamp device at this clamp device of the state of the distance of dish side rising regulation from the state of Figure 17.
Figure 19 is the major part cut-open view of expression from this clamp device of the state of state after the process stipulated time of Figure 18.
Figure 20 is the major part cut-open view of expression from this clamp device of the state of state after the process stipulated time of Figure 19.
Figure 21 is the finish major part cut-open view of this clamp device of state of the clamping of the thin dish of expression.
Figure 22 is the finish major part cut-open view of this clamp device of state of the clamping of dish of the moderate thickness of expression.
Figure 23 is the finish major part cut-open view of this clamp device of state of the clamping of the thick dish of expression.
Figure 24 is the major part planimetric map according to the base body of the dish device of present embodiment.
Figure 25 is the major part side view cutaway drawing of this dish device.
Figure 26 is the side view of the secondary sliding part (サ Block ス ラ イ ダ) of this dish device.
Figure 27 is expression from according to the clamping action of the dish of the dish device of present embodiment, through the major part planimetric map of the base body of the state of first stipulated time.
Figure 28 is the major part side view cutaway drawing of this state.
Figure 29 is the side view at the secondary sliding part of this state.
Figure 30 is further through the major part planimetric map of the base body of the state of second stipulated time from the state of Fig. 4.
Figure 31 is the major part side view cutaway drawing at this state.
Figure 32 is the side view at the secondary sliding part of this state.
Figure 33 is expression further rises to the base body of the highest state through the 3rd stipulated time, crossbeam from the state of Fig. 7 a major part planimetric map.
Figure 34 is at the major part side view cutaway drawing of this state.
Figure 35 is the side view cutaway drawing at the secondary sliding part of this state.
Figure 36 is expression from the state of Figure 10 further through the major part planimetric map of the base body of the record regenerating state of the 4th stipulated time, dish.
Figure 37 is at the major part side view cutaway drawing of this state.
Figure 38 is the side view at the secondary sliding part of this state.
Embodiment
Below, describe for clamp device according to an embodiment of the invention.
At first, describe for the hub main body of formation according to the clamp device of present embodiment.
Fig. 1 is the upper face side skeleton view according to the hub main body of the clamp device of present embodiment, Fig. 2 is the following side perspective view of this hub main body, Fig. 3 is the front elevation of this hub main body, Fig. 4 is the rear view of this hub main body, Fig. 5 is the side view of this hub main body, Fig. 6 is the A-A cut-open view among Fig. 3, and Fig. 7 is the B-B cut-open view among Fig. 3.
The hub main body 150 of rotating disk constitutes dish by discoid upper surface 151 and the side 152 of erectting on the periphery that is arranged on this upper surface 151.At the central part of upper surface 151, form the motor drive shaft that cooperates with the turning axle of Spindle Motor and use hole 153.
On hub main body 150, be and three pawls be set radially with peristomes 154.These pawls are arranged on from the periphery of upper surface 151 with peristome 154 and play in the scope of side 152, and the width that makes the lateral opening in the side 152 is greater than the upper surface open width on the periphery of upper surface 151.
In the rear side of hub main body 150, three disc spring stop parts 155 are set, described stop part is given prominence to and is being formed on the periphery of motor drive shaft with the circumferential rib 153A in hole 153.These disc spring stop parts 155 are radial setting towards pawl with peristome 154.
In addition, in the rear side of hub main body 150, a plurality of connection rib 150A that circumferential rib 153A and side 152 are coupled together are set.And, utilize a pair of connection rib 150A, will comprise a disc spring stop part 155 and to be positioned at the mode that the pawl on the axis direction of this disc spring stop part 155 is kept apart with space and other space of peristome 154, the pawl spatial accommodation 150B of pawl main body 170 is disposed in formation.
On the inner peripheral surface of the subtend of a pair of connection rib that forms pawl spatial accommodation 150B, be provided with: hub side retainer 156A; And at the interior side of this hub side retainer 156A, interior side's side spigot surface 156 that the dip plane that is uprised gradually by the center towards this hub main body 150 constitutes.Should constitute by first dip plane and second dip plane at least by interior square side spigot surface 156.
On the other hand, the pawl in side 152 forms bearing plane 157 up with the upper surface of the both sides of peristome 154, and the pawl in upper surface 151 forms bearing plane 158 down with the lower surface of the both sides of peristome 154.Bearing plane 157 up is made of first dip plane and second dip plane at least.
Secondly, describe for the pawl main body of formation according to the clamp device of present embodiment.
Fig. 8 is the following side perspective view according to the pawl main body of the clamp device of present embodiment, Fig. 9 is the top foreign side side perspective view of this pawl main body, Figure 10 is the top interior square side perspective view of this pawl main body, Figure 11 is the side view of this pawl main body, Figure 12 is the side view cutaway drawing of this pawl main body, Figure 13 is the front elevation of this pawl main body, and Figure 14 is the rear view of this pawl main body.
Pawl main body 170 is made of claw 171, the guide part 172 that is disposed at these claw 171 both sides.
Claw 171 is under situation about being installed on the hub main body 150, by constituting with the lower part: the leading section 171A that is positioned at the most peripheral of hub main body 150; Be connected to the upper surface 171B that this leading section 171A goes up, is made of tabular surface; Be connected to the below of leading section 171A, the dish maintenance face 171C that contacts with center hole portion.In addition, the interior side at upper surface 171B is provided with taper surface 171D.
The interior side of claw 171, form the rear end face 173 that contacts with disc spring, on this rear end face 173, be equipped with the disc spring stop part 175 that forms by projection.In addition, form recess 173A around the upper side of the disc spring stop part 175 in rear end face 173.By on the rear end face 173 of the top of disc spring institute position contacting, recess 173A being set, make the face that top contacted (recess 173A) of disc spring different with the angle of the face that the bottom contacted (rear end face 173) of disc spring.
And under the recess 173A state of contact of the top of disc spring and rear end face 173, the face of recess 173A is perpendicular to the center line of disc spring.
The lower surface 174 of guide part 172 forms circular-arc.In addition, the interior side of guide part 172, pawl side retainer 176 is set highlightedly to the side.
At the sidepiece as the claw 171 of the foreign side of guide part 172, the position below the leading section 171A than claw 171 leans on is equipped with spigot surface 177 down, at the spigot surface 178 that is equipped with than the high position of dish maintenance face 171C up.In addition, under pawl main body 170 was installed to state on the hub main body 150, spigot surface 177 down was configured in the position with up bearing plane 157 subtends, and by from top pushing claw 170, spigot surface 177 down slides along bearing plane 157 up.In addition, under pawl main body 170 was installed to state on the hub main body 150, spigot surface 178 up was configured in the position with down bearing plane 158 subtends.In addition, make the foreign side end of spigot surface 178 up be higher than this spigot surface 178 up.In addition, spigot surface 177 down is made of first dip plane and second dip plane at least.
Secondly, utilize Figure 15 to Figure 20 that the clamp device according to present embodiment is illustrated its more detailed structure and clamps action.
Figure 15 is expression holding state or the major part cut-open view that just dish has been inserted into the described clamp device of the state after coiling in the device.
Hub main body 150 is arranged on the central part of the upper surface of Spindle Motor 31A.And pawl main body 170 is configured between the bearing plane 31B of rotor-side of hub main body 150 and Spindle Motor 31A.
Between the disc spring stop part 175 of the disc spring stop part 155 of hub main body 150 and pawl main body 170, be provided as the disc spring 180 of elastic component.That is, pawl main body 170 is loaded by the foreign side of this disc spring 180 to hub main body 150.Disc spring 180 is so that the square end portion that the foreign side end of disc spring stop part 175 sides is positioned at than disc spring stop part 155 sides more is provided with by the mode of below.
In addition, so that pawl main body 170 is not run out of the mode of foreign side, pawl side retainer 176 is contacted with hub side retainer 156A.Here, make the contact position of pawl side retainer 176 and hub side retainer 156A, more by the interior side of hub main body 150, be positioned at the below of the center line of disc spring 180 than claw 171.
As shown in figure 15, dish by the state after just being inserted in the dish device under, the claw 171 of pawl main body 170 is configured in below the height of upper surface 151 of hub 150.In addition, the foreign side end of disc spring 180, its top contacts with the recess 173A of rear end face 173.In addition, at the holding state that dish does not insert, situation also is the same.
Figure 16 represents to make the major part cut-open view of this clamp device to this clamp device of the state of the distance of dish side rising regulation from the state of Figure 15.
By the rising of clamp device, claw 171 is pushed from upper surface 171B by dish.
Like this, by pushing claw 171 from upper surface 171B, pawl side retainer 176 slides along interior side's side spigot surface 156.That is, pawl side retainer 176 slides gradually towards the interior side of hub main body 150 with uprising.On the other hand, with the mobile while of this pawl side retainer 176, spigot surface 177 down slides along bearing plane 157 up.Thereby by the slip of pawl side retainer 176 and spigot surface 177 down, pawl main body 170 moves to the interior side of hub main body 150.In addition, by pushing claw 171 from upper surface 171B, the recess 173A of rear end face 173 is left on the top of the foreign side end of disc spring 180, and the bottom of the foreign side end of disc spring 180 contacts with rear end face 173.
Figure 17 is the major part cut-open view that the leading section of expression claw is inserted into this clamp device of the state in the center hole, Figure 18 represents to make the major part cut-open view of this clamp device at this clamp device of the state of dish side rising predetermined distance from the state of Figure 17, and Figure 19 is the major part cut-open view of expression from this clamp device of the state of state after the process stipulated time of Figure 18.
In Figure 17, the leading section 171A of expression claw 171 is inserted into the interior state of center pit of dish.And when making this clamp device further in the rising of dish side from state shown in Figure 17, as shown in figure 18, the leading section 171A of claw 171 slides along the inner peripheral surface of the center pit of dish.In the present embodiment, the claw 171 of this clamp device and the caused rising to the dish side of the interaction of hub main body 150 are until till the position shown in Figure 180.Position shown in Figure 180, promptly, in the caused critical conditions of the claw 171 and the mutual relationship of hub main body 150 to the rising of coiling side, the spigot surface down 177 of claw 171 contacts with the spigot surface up 157 of hub main body 150, the lower surface 174 of claw 171 contacts with the bearing plane 31B of rotor-side, and the leading section 171A of claw 171 contacts with the inner peripheral surface of center hole.Loading force or the leading section 171A of claw 171 and the relation of the frictional resistance between the dish by suitably setting disc spring 180 from the state of Figure 18, do not make this clamp device action, and the leading section 171A of claw 171 slides on the center bore inner wall face of dish.In the later action in position shown in Figure 180, the spigot surface down 177 of claw 171 leaves the spigot surface up 157 of hub main body 150.And, contacting under the constant situation with the inner peripheral surface of center hole at the leading section 171A that keeps claw 171, leading section 171A is moved upward on the inner peripheral surface of center hole bit by bit.On the other hand, contact under the constant situation the inside bit by bit side's side shifting of contact point of lower surface 174 and bearing plane 31B with the bearing plane 31B of rotor-side in the lower surface 174 that keeps claw 171.
Here, interior side's side spigot surface 156 as previously described, is made of first dip plane and second dip plane at least.When the utilization dish pushes claw 171 from top, when the leading section 171A of claw 171 is inserted into the center pit portion of dish or be about to be inserted into before the center pit portion of dish, first dip plane is the face that pawl side retainer 176 is contacted, after the leading section 171A of claw 171 was inserted into the center pit portion of dish, second dip plane was the face that pawl side retainer 176 is contacted.Second dip plane is compared with first dip plane, and is smaller with respect to the angle of press direction.
On the other hand, spigot surface 177 down as previously described, is made of first dip plane and second dip plane at least.When the leading section 171A of claw 171 is inserted into the center pit portion of dish or before the center pit portion that is about to the insertion dish, first dip plane is the face that contacts with up bearing plane 157, after the leading section 171A of claw 171 was inserted into the center pit portion of dish, second dip plane was the face that contacts with up bearing plane 157.Second dip plane is compared with first dip plane, and is less with respect to the angle of press direction.And, for example, constitute first dip plane of spigot surface 177 down by arc surface, constitute second dip plane of spigot surface 177 down by tabular surface.
Like this, by utilize first dip plane and second dip plane constitute in square side spigot surface 156 and spigot surface 177 down, particularly can stably carry out from the slip of the center bore inner wall face of the leading section 171A of the claw 171 of state shown in Figure 180 and dish.
In addition, bearing plane 157 up as previously described, is made of first dip plane and second dip plane at least.When the leading section 171A of claw 171 is inserted into center hole portion or before the center pit portion that is about to the insertion dish, first dip plane is the face that contacts with down spigot surface 177, after the leading section 171A of claw 171 was inserted into the center pit portion of dish, second dip plane was the face that contacts with down spigot surface 177.Second dip plane is compared with first dip plane, and is smaller with respect to the angle of press direction.And, for example, constitute first dip plane of bearing plane 157 up by arc surface, constitute second dip plane of bearing plane 177 up by tabular surface.
Like this, by constitute bearing plane 157 up by first dip plane and second dip plane, particularly can stably carry out from the slip of the center bore inner wall face of the leading section 171A of the claw 171 of state shown in Figure 180 and dish.
Figure 20 is that expression is from state shown in Figure 19 major part cut-open view through this clamp device of the state after the stipulated time.
In Figure 20, be that the leading section 171A of claw 171 crosses the upper surface of dish and outstanding state, expression clamps and finishes, and becomes the state for record, regeneration.
When clamping finishes, the foreign side end of disc spring 180, its top contacts with the recess 173A of rear end face 173.In addition, claw 171 is in the position higher than the upper surface 151 of hub main body 150.At the state that clamping finishes, the dish of claw 171 keeps face 171C to contact with the center hole upper end, and the leading section 171A of claw 171 reaches the outer circumferential side of center hole, protrudes into the top of the upper surface of dish simultaneously.On the other hand, the spigot surface up 178 of claw 171 contacts with the bearing plane down 158 of hub, and the lower surface 174 of claw 171 contacts with rotor-side bearing plane 31B.
Next utilizes Figure 21 to Figure 23, moves for the clamping of the different dish of thickness to describe.
Figure 21 is the finish major part cut-open view of this clamp device of state of the clamping of the thin dish of expression, Figure 22 is the major part cut-open view of this clamp device of the state that finishes of the clamping of the dish of the moderate thickness of expression, and Figure 23 is the major part cut-open view of this clamp device of the state of the clamping of the thick dish of expression when finishing.
Under the situation of the thin thickness of dish shown in Figure 21, be that moderate situation is compared with the thickness of dish shown in Figure 22, pawl main body 1170 moves to the foreign side of hub main body 150, simultaneously, the position step-down of the leading section 171A of claw 171.In addition, under the thickness of dish shown in Figure 22 is moderate situation, compare with the situation that the thickness of dish shown in Figure 23 is thick, pawl main body 170 moves to the foreign side of hub main body 150, simultaneously, and the position step-down of the leading section 171A of claw 171.Like this, according to present embodiment, even strengthen the shift motion of pawl main body 170 to the radial direction of hub main body 150 accordingly with the thickness deviation that coils, that also the height of pawl can be suppressed is lower.
Below, describe for the dish device of employing according to the clamp device of present embodiment.
Figure 24 is the major part planimetric map according to the base body of the dish device of present embodiment, and Figure 25 is the major part side view cutaway drawing of this dish device, and Figure 26 is the side view of the secondary sliding part of this dish device.
Dish device according to present embodiment constitutes the casing external packing by base body and lid, and protecgulum (ベ ゼ Le :) is installed in the front of casing external packing.According to the dish device of present embodiment, be a kind ofly to insert the dish device that mouth will coil direct-insert suction-type from the dish that is arranged on the protecgulum.
In the front face side of base body 10, the dish that forms direct insertion dish inserts mouth 11.Configuration crossbeam 30 on base body 10.
The driving mechanism 33 that crossbeam 30 keeps Spindle Motor 31A, adapter 32, adapter 32 is moved.On the turning axle of Spindle Motor 31A, be equipped with the hub main body 150 of holding tray.Spindle Motor 31A is arranged on the distolateral of crossbeam 30, in addition, adapter 32, at holding state and clamped condition, another that is configured in crossbeam 30 is distolateral.Adapter 32 can distolaterally move to another and is provided with distolaterally from one of crossbeam 30.Driving mechanism 33 has: CD-ROM drive motor, make pair of guide rails that adapter 32 slides, the drive transmitting of CD-ROM drive motor given the gear mechanism of adapter 32, pair of guide rails is configured in the both sides of adapter 32, so that with distolateral and another distolateral coupling together of crossbeam 30.
On crossbeam 30, Spindle Motor 31A is positioned at the central portion of base body 10, and in addition, the scope that moves back and forth of adapter 32 is compared with Spindle Motor 31A and is positioned at dish insertion oral-lateral, and in addition, the direction that moves back and forth of adapter 32 disposes differently with the direction of insertion of dish.Here, the direction of insertion of the direction that moves back and forth of adapter 32 and dish becomes the angle of 40~45 degree.
Crossbeam 30 is bearing on the base body 10 by a pair of stationary cam 34A, 34B.Preferably, a pair of stationary cam 34A, 34B are configured in close adapter 32 sides than Spindle Motor 31A, are configured in the position of readiness of adapter 32 and compare more by coiling on the position of inserting mouthful 11 sides.In the present embodiment, stationary cam 34A be arranged on dish insert mouthfuls 11 inboard near central portion, stationary cam 34B be arranged on dish insert mouthfuls 11 inboard near one distolateral.Stationary cam 34A, 34B are made of the groove of the specified length of extending along the dish direction of insertion, and this groove leaves the distance of first Y-axis in the distolateral end that dish inserts mouthful 11 sides from base body 10 than another distolateral end.Slide in the groove of this stationary cam 34A, 34B by cam pin 35A, the 35B that is arranged on the crossbeam 30, crossbeam 30 is inserted along dish discharge direction (X-direction) displacement, simultaneously, also can along near or away from direction (Z-direction) displacement of base body 10.
Below, describe for the main slider 40 and the secondary sliding part 50 that make these crossbeam 30 actions.
Main slider 40 and secondary sliding part 50 dispose in the mode of the side that is positioned at Spindle Motor 31A.Main slider 40 is along making the one end become the direction configuration of the front face side of chassis main body 10, back side that its other end becomes chassis main body 10.In addition, secondary sliding part 50 disposes along the direction with main slider 40 quadratures.
The cam mechanism of crossbeam 30 displacements is made of sliding part cam mechanism 51 and lifter cam mechanism 52, is arranged on the secondary sliding part 50.Sliding part cam mechanism 51 is made of the groove of the specified length that the moving direction along secondary sliding part 50 extends, and this groove up to other end side end, inserts the direction (X-direction) of mouth 11 from one distolateral (main slider 40 sides) end by stages near dish.Be arranged on the sliding pin 53 on the crossbeam 30,, can make insertion, discharge direction (X-direction) displacement of crossbeam 30 to dish by in the groove of this sliding part cam mechanism 51, sliding.In addition, lifter cam mechanism 52 is made of the groove of the specified length that the moving direction along secondary sliding part 50 extends, this groove, makes with the distance of base body 10 (Z wheelbase from) to change by stages to other end side end from one distolateral (main slider 40 sides) end.Be arranged on the lifter pin 54 on the crossbeam 30, by the slip in the groove of this lifter cam mechanism 52, can make crossbeam 30 approaching, away from direction (Z-direction) top offset of base body 10.
Distolateral configuration loading motor (not shown) at main slider 40.And, via distolateral be connected of gear mechanism (not shown) with driving shaft with the main slider 40 of this loading motor.
By the driving of this loading motor, main slider 40 is gone up at length direction (X-direction) slided.In addition, main slider 40 is connected with secondary sliding part 50 by cam lever 70.
Cam lever 70 has pivot point 71, cooperates with cam path 41 on being arranged on main slider 40 with pin 72, and the cam path on utilizing pin 74 and being arranged on secondary sliding part 50 cooperates.
This cam lever 70 has such function: with the mobile interlock of main slider 40, secondary sliding part 50 is moved, by moving of secondary sliding part 50, make sliding part cam mechanism 51 and 52 actions of lifter cam mechanism, make crossbeam 30 displacements.
In addition, crossbeam 30 further is bearing on the base body 10 by a pair of stationary cam 36A, 36B.A pair of stationary cam 36A, 36B are configured between stationary cam 34A, 34B and the secondary sliding part 50, preferably, are configured on the centre position of stationary cam 34A, 34B and secondary sliding part 50. Stationary cam 36A, 36B are made of the groove with the specified length of stationary cam 34A, 34B same structure.Slide in the groove of this stationary cam 36A, 36B by cam pin 37A, the 37B that is arranged on the crossbeam 30, make the direction of insertion displacement of crossbeam 30 to dish, simultaneously, can approaching, away from the direction top offset of base 10.
More than Shuo Ming crossbeam 30, stationary cam 34A, 34B, 36A, 36B, main slider 40, secondary sliding part 50 and loading motor are arranged on the base body 10, and the formation dish inserts the space between these members and lid 130.
Secondly, describe for the ways of step disk and the bar member that dish is moved.
The dish of base body 10 insert mouthfuls 11 near one distolateral, the first dish guide (not shown) of specified length is set.This first dish guide has the groove of " コ " font from the observed cross section of dish direction of insertion.By this groove step disk.
On the other hand, near another the dish insertion mouth 11 of base body 10 is distolateral, and leading-in pole 80 is set, at the movable side end outfit second dish guide 81 of this leading-in pole 80.The second dish guide 81 is made of roller cylindraceous, is arranged on the movable side end of leading-in pole 80 free to rotately.In addition, in the second peripheral shape grooving of coiling the roller of guide 81, by this groove step disk.
Leading-in pole 80 inserts mouthful mode of 11 sides action than fixation side end at more close dish with movable side end and disposes, and has rotating fulcrum 82 on the fixation side end.The 3rd dish guide 84 of specified length is set between the movable side end of leading-in pole 80 and fixation side end in addition.In addition, leading-in pole 80 has pin 85, slides leading-in pole 80 actions in the cam path 42 of main slider 40 by this pin 85.That is, leading-in pole 80 is accompanied by moving of main slider 40,, the remotely action approaching with respect to Spindle Motor 31A of the second dish guide 81.
In addition, discharge bar 100 is set on base body 10.At one of this discharge bar 100 distolateral movable side end guide 101 is set.In addition, at another distolateral rotating fulcrum 102 that is provided with of discharging bar 100.In addition, discharge bar 100 by pin 103 and cam path 43 and main slider 40 motion move linkedly.
In addition, be provided with in a side and discharge bar 110 with discharge bar 100 subtends of base body 10.At a distolateral movable side end of discharging bar 110 guide 111 is set.In addition, 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 in base body 10 is provided with fixed pin 120.By this fixed pin 120, during the loading that coils or the position limit of the dish when clamping.
As shown in figure 25, the casing external packing 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 dishes.Thereby, be the opening bigger than the hub main body 150 of the Spindle Motor 31A on the center pit that is coupled to dish.
Peripheral part at peristome 132 forms the contraction flow region 133 that is projected into base body 10 sides.
Below, utilize Figure 24 to Figure 38 that the action mechanism of crossbeam 30 is described.
The position indicating panel of the cam mechanism of Figure 24 to Figure 26 and pin loads the state that finishes.
Figure 27 be the dish from the dish device clamp action, through the major part planimetric map of the base body 10 of the state of first stipulated time, Figure 28 is the major part side view cutaway drawing at this state, Figure 29 is the side view at the secondary sliding part of this state.
In addition, Figure 30 is expression from the state of Figure 27 further through the major part planimetric map of the base body of the state of second stipulated time, and Figure 31 is the major part side view cutaway drawing at this state, and Figure 32 is the side view at the secondary sliding part of this state.
In addition, Figure 33 be expression from the state of Figure 30 further through the 3rd stipulated time, crossbeam rises to the major part planimetric map of the base body of the highest state, and Figure 34 is the major part side view cutaway drawing at this state, and Figure 35 is the side view at the secondary sliding part of this state.
And, Figure 36 is expression from the state of Figure 33 further through the major part planimetric map of the base body of the record regenerating state of the 4th stipulated time, dish, Figure 37 is the major part side view cutaway drawing at this state, and Figure 38 is the side view at the secondary sliding part of this state.
At first, load the state finish at dish, to shown in Figure 26, crossbeam 30 in the end side is configured in the position of the most close base body 10 sides as Figure 24.
That is, at this state, sliding pin 53 is positioned at the end of distolateral (main slider 40 sides) of sliding cam mechanism 51.Thereby crossbeam 30 is configured in the position near rear side.In addition, cam pin 35A, 35B are positioned at the other end side end of the groove of stationary cam 34A, 34B.Thereby another of crossbeam 30 distolateral (adapter 32 sides) is configured in the position near base body 10.In addition, lifter pin 54 is positioned at the end of distolateral (main slider 40 sides) of lifter cam mechanism 52.Thereby one distolateral (Spindle Motor 31A side) of crossbeam 30 is configured in the position near base body 10.
Main slider 40 inserts mouthful 11 directions from state shown in Figure 24 to dish and moves 2, is accompanied by moving of this main slider 40, and secondary sliding part 50 moves to the direction of main slider 40.
And, clamp the state of action in first stipulated time, to shown in Figure 29, crossbeam 30 inserts mouthfuls 11 direction to dish and moves the first X-axis distance as Figure 27, simultaneously, the distolateral position of leaving base body 10 first Y-axis distances that is configured in of another of crossbeam 30.
That is, at this state, sliding pin 53 moves the first Y-axis distance with sliding cam mechanism 51, and crossbeam 30 moves the first X-axis distance to the direction that dish inserts mouth 11.Thereby cam pin 35A, 35B move the first X-axis distance to the direction of a distolateral end of the groove of stationary cam 34A, 34B, another of crossbeam 30 distolateral (adapter 32 sides) be configured in leave base body 10 a Z wheelbase from the position.In addition, lifter pin 54 moves the first Y-axis distance from one distolateral (main slider 40 sides) end of lifter cam mechanism 52, but be in identical height owing to be in the interior groove of scope of this first Y-axis distance, so, one distolateral (Spindle Motor 31A side) of crossbeam 30 remained on position near base body 10.
By from state shown in Figure 27, main slider 40 further inserts mouthfuls 11 direction to dish and moves, and secondary sliding part 50 further moves to the direction of main slider 40.
And, state in the clamping action of further carrying out for second stipulated time from state shown in Figure 27, to shown in Figure 32, another of crossbeam 30 be distolateral to be configured in and to leave the position of base body 10 the 2nd Z wheelbase from (the 2nd Z wheelbase from>the one Z wheelbase from) as Figure 30.
That is, in this state, sliding pin 53 moves the second Y-axis distance with sliding cam mechanism 51, but, because in this moving range, the moving direction (Y direction) of the groove of sliding cam mechanism 51 and secondary sliding part 50 is provided with abreast, so crossbeam 30 does not move to the direction of dish insertion mouth 11.Thereby cam pin 35A, 35B do not move in the groove of stationary cam 34A, 34B yet.In addition, lifter pin 54 moves the second Y-axis distance with the groove of lifter cam mechanism 52, one distolateral (the Spindle Motor 31A side) that makes crossbeam 30 from base body 10 move the 2nd Z wheelbase from.
Further move to the direction of dish insertion mouth 11 from state shown in Figure 30 by main slider 40, secondary sliding part 50 further moves to the direction of main slider 40.
And, under the state of the clamping action 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 crossbeam 30 be distolateral be configured in leave base body 10 the 3rd Z wheelbase farthest from.
Promptly, at this state, sliding pin 53 moves the 3rd Y-axis distance with sliding cam mechanism 51, but, because in the scope that this moves, the moving direction of the groove of sliding cam mechanism 51 and secondary sliding part 50 (Y direction) is provided with abreast, so crossbeam 30 does not move on the direction of dish insertion mouth 11.Thereby cam pin 35A, 35B do not move in the groove of stationary cam 34A, 34B yet.In addition, lifter pin 54 moves the 3rd Y-axis distance with the groove of lifter cam mechanism 52, makes one distolateral (Spindle Motor 31A side) of crossbeam 30 move the 3rd Z wheelbase from (the highest lifting height) from base body 10.In this state, hub main body 150 finishes to the clamping of dish.
Further move to the direction of dish insertion mouth 11 from state shown in Figure 33 by main slider 40, secondary sliding part 50 further moves to the direction of main slider 40.
And to shown in Figure 38, when dish inserted mouthfuls 11 direction and moves, the direction of the other end lateral approach base body 10 of crossbeam 30 moved at crossbeam 30 as Figure 36, be configured in a Z wheelbase from the position.
That is, at this state, sliding pin 53 moves the 4th Y-axis distance with sliding cam mechanism 51, and crossbeam 30 moves the second X-axis distance to the dish direction of insertion.Thereby cam pin 35A, 35B move the second X-axis distance to a distolateral end of the groove of stationary cam 34A, 34B, and still, the height of another of crossbeam 30 distolateral (adapter 32 sides) is constant.In addition, lifter pin 54 moves the 4th Y-axis distance with the groove of lifter cam mechanism 52, and one distolateral (Spindle Motor 31A) of crossbeam 30 moved to the direction of base body 10, be configured to a Z wheelbase from the position.
By above-mentioned action, when making dish leave lid 130, also leave fixed pin 120, dish becomes the regenerative recording state.
In addition, the discharge of the dish of installation by driving loading motor, main slider 40 being moved to its another distolateral direction carry out, is carried out with above-mentioned action basically on the contrary.
According to the present invention, the load when can the reduction dish inserting, the change that can be adapted to load simultaneously can stably be moved.
The industrial possibility of utilizing
Clamping device of the present invention, can be used for being built in indication mechanism and input mechanism and Interior or the one-tenth of the integrated so-called notebook-PC main body such as computing processing sector The dish device of holistic setting.

Claims (19)

1. clamp device, the hub main body of rotating disk a plurality of pawl main bodys that can move are set in the radial direction, utilize aforementioned pawl main body by the center pit portion of platen so that dish is kept, it is characterized in that,
The elastic component that aforementioned pawl main body is loaded to foreign side with respect to aforementioned hub main body is set,
Aforementioned pawl main body has the claw that contacts with above-mentioned disc and limits the pawl side retainer that moves to foreign side that is caused by aforementioned elastic component,
Aforementioned hub main body has: aforementioned claw can be to the outstanding pawl of foreign side with peristome, the hub side retainer that contacts with aforementioned pawl side retainer,
Than the leading section of aforementioned claw near below the position down spigot surface is set,
With the aforementioned hub main body of the position of aforementioned spigot surface subtend down on, bearing plane up is set,
By push aforementioned claw from top, aforementioned spigot surface down slides along aforementioned bearing plane up, and aforementioned claw inwardly side moves.
2. clamp device as claimed in claim 1 is characterized in that, will be from the leading section of aforementioned claw towards the face of below as dish maintenance face, aforementioned spigot surface down is arranged on the sidepiece that above-mentioned disc keeps face.
3. clamp device as claimed in claim 2 is characterized in that, on the aforementioned pawl main body of the position that keeps high position of face or equal height than above-mentioned disc, spigot surface down is set.
4. clamp device as claimed in claim 3 is characterized in that, the order foreign side end of spigot surface up is than this spigot surface height up, and the part of aforementioned spigot surface down is arranged on this part.
5. clamp device as claimed in claim 1, it is characterized in that, at least constitute aforementioned spigot surface down by first dip plane and second dip plane, when pushing aforementioned claw with above-mentioned disc from top, when the leading section of aforementioned claw is inserted into the center pit portion of above-mentioned disc or before being about to be inserted into the center pit portion of above-mentioned disc, with aforementioned first dip plane as the face that contacts with aforementioned bearing plane up, after the leading section of aforementioned claw is inserted into the center pit portion of above-mentioned disc, with aforementioned second dip plane as the face that contacts with aforementioned bearing plane up, aforementioned second dip plane is compared with aforementioned first dip plane, and is less with respect to the angle of press direction.
6. clamp device as claimed in claim 1 is characterized in that, at the interior quadrate part of aforementioned hub side retainer, and interior side's side spigot surface that the dip plane that setting is uprised gradually by the center towards described hub main body constitutes,
At least constitute aforementioned interior square side spigot surface by first dip plane and second dip plane, utilizing above-mentioned disc when top pushes aforementioned claw, when the leading section of aforementioned claw is inserted into the center pit portion of above-mentioned disc or before being about to be inserted into the center pit portion of above-mentioned disc, with aforementioned first dip plane as the face that contacts with aforementioned pawl side retainer, after the leading section of aforementioned claw is inserted into the center pit portion of above-mentioned disc, the face that aforementioned second dip plane is contacted as aforementioned pawl side retainer, aforementioned second dip plane is compared with aforementioned first dip plane, and is less with respect to the angle of press direction.
7. clamp device as claimed in claim 5 is characterized in that, constitutes aforementioned first dip plane of aforementioned spigot surface down by arc surface, constitutes aforementioned second dip plane of aforementioned spigot surface down with tabular surface.
8. clamp device as claimed in claim 1 is characterized in that, constitutes aforementioned bearing plane up by first dip plane and second dip plane at least,
With above-mentioned disc when top pushes aforementioned claw, when the leading section of aforementioned claw is inserted into the center pit portion of above-mentioned disc or before being about to be inserted into the center pit portion of above-mentioned disc, with aforementioned first dip plane as the face that contacts with aforementioned spigot surface down, after the leading section of aforementioned claw is inserted into the center pit portion of above-mentioned disc, with aforementioned second dip plane as the face that contacts with aforementioned spigot surface down, aforementioned second dip plane is compared with aforementioned first dip plane, and is less with respect to the angle of press direction.
9. clamp device as claimed in claim 1 is characterized in that, will be from the leading section of aforementioned claw towards the face of below as dish maintenance face, aforementioned spigot surface down is arranged on the sidepiece that above-mentioned disc keeps face,
On the aforementioned pawl main body of the position that keeps high position of face or equal height than above-mentioned disc, spigot surface down is set, with the aforementioned hub main body of the position of aforementioned spigot surface subtend up on, bearing plane down is set,
Aforementioned pawl is arranged on upper surface periphery from aforementioned hub main body to the scope of side with peristome, compare with the upper surface open width in the aforementioned upper surface periphery of peristome with aforementioned pawl, the lateral opening width that is positioned at aforementioned side is bigger, aforementioned bearing plane down is configured in aforementioned upper surface open portion both sides below, aforementioned bearing plane up is configured in aforementioned lateral opening portion both sides above.
10. clamp device as claimed in claim 9 is characterized in that, is arranged on each aforementioned bearing plane up of the both sides of aforementioned lateral opening portion, is connected by aforementioned hub main body, and the configuration above-mentioned disc keeps face between each aforementioned bearing plane up.
11. clamp device as claimed in claim 9 is characterized in that, adopts disc spring as aforementioned elastic component, the contact position of aforementioned pawl side retainer and aforementioned hub side retainer is arranged on the below of the center line of aforementioned disc spring.
12. clamp device as claimed in claim 10 is characterized in that, the contact position of aforementioned pawl side retainer and aforementioned hub side retainer is arranged on position than the more inner side of aforementioned claw.
13. clamp device as claimed in claim 10 is characterized in that, aforementioned pawl side retainer is arranged on the sidepiece of aforementioned claw.
14. clamp device as claimed in claim 9 is characterized in that, the record, the reproduced state that are kept by aforementioned claw in above-mentioned disc, under the situation of the thin thickness of above-mentioned disc, to compare with the situation that the thickness of above-mentioned disc is thick, aforementioned claw moves to foreign side, simultaneously, the position step-down of aforementioned claw.
15. clamp device as claimed in claim 14, it is characterized in that, be arranged on aforementioned pawl main body front side spigot surface up and be arranged on the aforementioned bearing plane down position, aforementioned hub main body with aforementioned spigot surface subtend up, with the degree of tilt setting of front side step-down.
16. clamp device as claimed in claim 9, it is characterized in that, compare with the contact site of lower member with the bottom of aforementioned pawl main body under the holding state that is not kept in above-mentioned disc by aforementioned claw, the aforementioned pawl side retainer that moves that restriction is caused by the aforementioned elastic component of aforementioned pawl main body to foreign side, be arranged on front side, the aforementioned hub side retainer that will contact with aforementioned pawl side retainer is as the dip plane of downside near front side.
17. clamp device as claimed in claim 14, it is characterized in that, spigot surface down is arranged on the position of more leaning on the below than the leading section of aforementioned claw, up bearing plane is arranged on the aforementioned hub main body with the position of aforementioned spigot surface subtend down, at least constitute aforementioned spigot surface down by first dip plane and second dip plane, utilizing above-mentioned disc when top pushes aforementioned claw, when the center pit portion of the above-mentioned disc that the leading section of aforementioned claw inserts or before being about to be inserted into the center pit portion of above-mentioned disc, with aforementioned first dip plane as the face that contacts with aforementioned bearing plane up, after the leading section of aforementioned claw is inserted into the center pit portion of above-mentioned disc, with aforementioned second dip plane as the face that contacts with aforementioned bearing plane up, aforementioned second dip plane is compared with aforementioned first dip plane, angle with respect to press direction is less, by push aforementioned claw from top, aforementioned spigot surface down slides along aforementioned bearing plane up, and aforementioned claw inwardly side moves.
18. clamp device as claimed in claim 14, it is characterized in that, adopt disc spring, the contact position of aforementioned pawl side retainer and aforementioned hub side retainer is arranged on the below of the center line of aforementioned disc spring as aforementioned elastic component, simultaneously, be arranged on the interior side of aforementioned claw.
19. dish device, employing is according to claim 1 any one described clamp device to the claim 18, it is characterized in that, constitute the casing external packing by base body and lid, the dish that forms direct insertion dish in the front of aforesaid chassis external packing inserts mouth, the crossbeam that utilization is arranged on the base body keeps Spindle Motor and adapter, the aforementioned rotating disk of outfit on aforementioned Spindle Motor, make aforementioned crossbeam approaching, away from base body.
CN 200480042297 2004-03-04 2004-11-08 Chucking device Pending CN1926620A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP61017/2004 2004-03-04
JP61015/2004 2004-03-04
JP2004061015A JP3822608B2 (en) 2004-03-04 2004-03-04 Chucking device
JP61021/2004 2004-03-04

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CN1926620A true CN1926620A (en) 2007-03-07

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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
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CN101510432B (en) * 2008-02-14 2012-07-04 阿尔派株式会社 Disc device
CN102460916A (en) * 2009-06-02 2012-05-16 Lg伊诺特有限公司 Clamping device of spindle motor
US8607258B2 (en) 2009-06-02 2013-12-10 Lg Innotek Co., Ltd. Clamping device of spindle motor having a plurality of arms and an elastic member
CN102460916B (en) * 2009-06-02 2013-12-18 Lg伊诺特有限公司 Clamping device of spindle motor
US9384776B2 (en) 2009-06-02 2016-07-05 Hitachi-Lg Data Storage Korea, Inc. Clamping device of spindle motor including case having inclination surface

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