CN1046045C - Equipment for protection of disc - Google Patents
Equipment for protection of disc Download PDFInfo
- Publication number
- CN1046045C CN1046045C CN94107775A CN94107775A CN1046045C CN 1046045 C CN1046045 C CN 1046045C CN 94107775 A CN94107775 A CN 94107775A CN 94107775 A CN94107775 A CN 94107775A CN 1046045 C CN1046045 C CN 1046045C
- Authority
- CN
- China
- Prior art keywords
- turntable
- slingshot
- central part
- pellet shot
- dish
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 210000000078 claw Anatomy 0.000 claims abstract description 5
- 239000008188 pellet Substances 0.000 claims description 59
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 description 10
- 210000003811 finger Anatomy 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241001640034 Heteropterys Species 0.000 description 1
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 208000037804 stenosis Diseases 0.000 description 1
- 230000036262 stenosis Effects 0.000 description 1
Images
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
The invention discloses a disc holding device, which includes an integral rotary table and a cover. The rotary table is provided with a disc carrying surface, a disc radial-positioning circumference, a ball to contain and fix discs and a spring containing dent to enable the ball with a tendency to move radially to the outer circle. The cover is combined with the rotary table and used to keep the ball and a spring in the containing dent. The cover is provided with a connecting claw, the rotary table is provided with a core with a positioning circumference, and the upper part of the core is provided with a connecting surface to connect the connecting claw. The invention is characterized in improved disc positioning accuracy and low cost.
Description
The present invention relates to for example to be applicable to indicator (hereinafter to be referred as the dish) holding device of mini disk drive unit etc.
Be applicable to the general disk holding device of mini disk drive unit etc. as tradition, known have that Jap.P. for example is real opens that clear 61-28138 communique recorded and narrated, and will coil the device of clamping maintenance with turntable with by the dish pressing component that magnet etc. is formed.This disk holding device mainly is applicable to the fixed disk drive device of usefulness such as family.But, require the device of slimming for the portable disc drive unit, the dish pressing component becomes the obstruction of thin typeization, thereby there is a device as described below, central part at turntable is provided with a plurality of pellets shot from a slingshot exactly, and these pellets shot from a slingshot are applied acting force makes it along radially outward the stretching out of turntable, and loads and unloads dish by the radially outwardly directed power that overcomes pellet shot from a slingshot, and, dish can be remained on the turntable with the radially outwardly directed power of pellet shot from a slingshot.The real clear 53-96806 communique (real public clear 58-22287 communique) of opening of Jap.P. has been narrated this device.Below, this conventional case is described.
At Figure 12 described later, in 13, Figure 12 is the vertical view of the band part section of expression conventional disc holding device example chief component, Figure 13 is in the main pseudosection of loading and unloading dress attitude for the dish of the above-mentioned conventional case of expression, on the central part of the turntable 81 that drives with the motor rotation, form the perisporium 82 of projection upward, keep body 83 and above-mentioned perisporium 82 tablings by the pellet shot from a slingshot that makes the cap shape, keep body 83 to be fixed on the turntable 81 pellet shot from a slingshot, make pellet shot from a slingshot keep the external diameter of body 83 equal or slightly little with the center-hole diameter that coils 40.Keep body 83 inside to have at pellet shot from a slingshot and form the ditch shape pellet shot from a slingshot guide groove 88 that radially extends, each pellet shot from a slingshot guide groove 88 in, dispose along this pellet shot from a slingshot guide groove 88 pellet shot from a slingshot 84 movably at equally spaced 3 places along the circumferential direction.Each pellet shot from a slingshot guide groove 88 has the peristome on the outer peripheral face that is formed on pellet shot from a slingshot maintenance body 83, and makes each pellet shot from a slingshot 84 have the trend that radially outwards moves with the volute springs 85 that are configured in each pellet shot from a slingshot guide groove 88.In addition, narrow by near 86 stenosis of the two side the peristome that makes each pellet shot from a slingshot guide groove 88, prevent that each pellet shot from a slingshot 84 from dropping.Because of the effect of spring 85 make respectively peristome that each pellet shot from a slingshot 84 keeps body 83 from above-mentioned pellet shot from a slingshot outwards part stretch out.Between the dish bearing plane of the extended position of this pellet shot from a slingshot 84 and turntable 81, guarantee from coiling the suitable size that 40 thickness are extrapolated.
When carrying out dish 40 packed on turntable 81, shown in the right half of Figure 13, keep chimeric on the periphery of body 83 to pellet shot from a slingshot by coiling 40 center pit, thereby put on each pellet shot from a slingshot 84, platen 40 press...withes one's finger, make pellet shot from a slingshot overcome the elastic force of spring 85 and when retreating, will coil 40 and put on turntable 81.When coiling 40 when putting on turntable 81, the part of pellet shot from a slingshot 84 keeps the peristome of body 83 to stretch out because of the elastic force of spring 85 from pellet shot from a slingshot, this power of stretching out will be coiled 40 and push on turntable 81 by the upper edge of the center pit of platen 40, thereby its energy and turntable 81 are rotated together.
In the occasion that dish 40 is taken off from turntable 81, shown in the left half of Figure 13, a finger and pellet shot from a slingshot maintenance the top of body 83 are contacted, another finger is contacted with the peripheral part that coils 40, lift thereby will coil 40 peripheral part.Keep body 83 to take off from pellet shot from a slingshot when dish 40 edge parts by its center pit can be forced pellet shot from a slingshot 84 to overcome elastic force that spring applies like this to retreat.
By Figure 12, conventional disc holding device shown in 13 comprises coiling 40 turntables 81 that carry out axial location, with keep body 83 two parts to coiling 40 pellets shot from a slingshot that carry out radial location, make turntable 81 and pellet shot from a slingshot keep body 83 tablings by the modes such as what is called engaging of utilizing elastic force that these two parts are engaged.Therefore, it is loosening to make turntable 81 and pellet shot from a slingshot keep body 83 to produce easily, in addition, because of the pellet shot from a slingshot of regulation dish 40 radial positions keeps body 83 except being combined with the accuracy requirement turntable 81 and motor output shaft, also chimericly has an accuracy requirement to what turntable 81 and pellet shot from a slingshot kept body 83, because of trueness error adds up, inaccessible requirement to coiling 40 bearing accuracy.Have again, because the align member of dish 40 is divided into each other two part, thus the bearing accuracy of the dish 40 of inaccessible requirement, and, also there is the problem that manufacturing cost is improved.
Therefore, the present invention is just in order to solve the problem in the above-mentioned conventional art, purpose be to provide can with parts coil axially and radial location, thereby the bearing accuracy of dish is improved, and can reduce the disk holding device of manufacturing cost.
According to indicator holding device of the present invention, have the axial location putting surface of described dish on this device and radially decide the face periphery and be a plurality of recesses that hold that hold the pellet shot from a slingshot that described dish elasticity is connected and fixed, this device is made of by setting-in turntable and lower cover, on described turntable, formed cylindric central part, flange part that extends outside from the lower end of this central part and the above-mentioned a plurality of recesses that hold that form at this central part, the described dish axial location of the top formation putting surface of above-mentioned flange part, the outer circumference surface of this central part constitutes described disc radial setting circle side face.
Simple declaration to accompanying drawing
Fig. 1 is the main pseudosection of expression disk holding device embodiment of the present invention,
Fig. 2 for the expression the foregoing description remove the lid state time upward view,
Vertical view when Fig. 3 cuts a part for expression with the foregoing description,
Fig. 4 is the upward view of the foregoing description turntable,
Fig. 5 is the sectional view of the above-mentioned turntable of expression along the Z-Z line of following Fig. 6,
Fig. 6 is half vertical view of the above-mentioned turntable of expression,
Fig. 7 represents that for amplifying above-mentioned turntable holds the upward view of recess,
Fig. 8 is the above-mentioned drawing in side sectional elevation that holds recess,
Fig. 9 is the sectional view of the above-mentioned turntable setting circle perimeter surface part of expression,
Figure 10 is the vertical view of expression the foregoing description lid,
Figure 11 is the sectional view along the A-A line of Figure 10,
Figure 12 is the vertical view of the band part section of expression conventional disc holding device major part,
Figure 13 is in the main pseudosection of loading and unloading state for the dish of the above-mentioned conventional case of expression.
Below, with reference to accompanying drawing disk holding device embodiment of the present invention is described.
In Fig. 1-3,10 for putting, rotate the turntable of driving-disc, turntable 10 is shown in Fig. 4-6 of this turntable component diagram, overall is discoid, have cylindric central part 20 and the flange part that extends outside of 20 lower end from central division, become the putting surface 15 of dish above this flange part, the outer peripheral face 30 of above-mentioned central part 20 becomes the periphery of regulation disc radial position, the top of this setting circle side face 30 is constituted will coil the circular conical surface 30a that 40 center pit guides to setting circle side face 30.Centre at central part 20 forms wheel hub 10a, and the chimeric wheel hub 10a that is fixed on goes up in the axis hole 11 that forms not shown disc driving motor turning axle, forms with the motor rotation and drives turntable 10 rotations.
Shown in Fig. 4-9, on turntable 10, along the circumferential direction equally spaced form vertically from central division 20 and 3 fenestras 12 partly running through of the boundary of flange part.The upper end of each fenestra 12 is linked to each other with the composition surface 14 that forms on the upper end of central part 20.The formation dish is fixing respectively at 3 places of 12 of above-mentioned each fenestras of the boundary part of the central part 20 of turntable 10 and flange part stretches out hole 27 with pellet shot from a slingshot.The above-mentioned hole 27 of stretching out is linked to each other with the recess 25 that holds that radially extends to form on the top of central part 20.
Shown in Fig. 1,2,7,8, be used in the paired sidewall 24 that forms respectively on the central part 20 of turntable 10 and surround the above-mentioned recess 25 that respectively holds.It is fixing with pellet shot from a slingshot 38 to lay dish in respectively holding recess 25, and makes radially mobile during holding recess 25 that pellet shot from a slingshot 38 can be along central part 20.Near 26 distances in two side that formation is stretched out the hole 27 respectively hold recess 25 above-mentioned are also narrower than the diameter of pellet shot from a slingshot 38, thereby can prevent that pellet shot from a slingshot 38 from coming off, and pellet shot from a slingshot 38 can be stretched out from stretching out hole 27 parts.Lay volute spring 36 in respectively holding recess 25, spring 36 makes each pellet shot from a slingshot be subjected to radially outwardly directed acting force, makes each pellet shot from a slingshot 38 extend out to the outside of the setting circle side face 30 of central part 20 from stretching out hole 27 parts.
The jetty 18 that has concentric circles in the bottom of turntable 10 is flush-mounted in lid 50 inboard of this jetty 18.As Figure 10, shown in 11 the component diagram, the hub portion 57 that has concentric circles at the central part of lid 50, has the base plate 51 that extend to peripheral direction the bottom of hub portion 57 from then in addition, make the below of this base plate 51 from turntable 10, just embed interior all sides of the jetty 18 of above-mentioned turntable 10, above-mentioned hub portion 57 is cooperated with the outer circumferential side of the hub portion 10a of turntable 10 from the reverse side of dish putting surface 15.Lid 50 have with the integrally formed elastic arm of holding up 52 in position of above-mentioned fenestra 12 correspondences of turntable 10.Form engaging claw 53 in the top ends of each elastic arm 52 towards interior all sides.
Make each elastic arm 52 of lid 50 pass each fenestra 12 of turntable 10, make the engaging claw 53 of each elastic arm 52 top ends utilize the elasticity of elastic arm 52 and above-mentioned each composition surface 14 of turntable 10 to engage.Like this, turntable 10 and lid 50 are engaged.Lid 50 also has from hub portion 57 and is radial 3 raised lines 55 that stretch out.Make each raised line 55 and turntable 10 above-mentioned to hold recess 25 corresponding, each raised line is covered the bottom open surface that respectively holds recess 25 at turntable 10 and lid 50 engagement state, constitute above-mentioned each pellet shot from a slingshot 38 and spring 36 remained on and hold in the recess 25.In addition, also can form the elastic arm identical, this elastic arm and lid 50 are engaged in turntable 10 sides with above-mentioned elastic arm 52.
Fig. 1, Fig. 2 represent the state that assembled by above-mentioned.The pellet shot from a slingshot 38 that shaft collar is used is subjected to the acting force that radially outward stretches out along central part 20 because of the power of spring 36, because this outside power makes pellet shot from a slingshot 38 contact with near 27 two sides 26, hole of stretching out that hold recess 25, pellet shot from a slingshot is moved be restricted, the part of pellet shot from a slingshot 38 is stretched out slightly from the above-mentioned hole 27 of stretching out.
To coil 40 when turntable 10 is loaded onto, dish 40 center pit is cooperated with the outer peripheral face of central part 20 through dip plane 30a, the edge part that coils 40 center pit put on each pellet shot from a slingshot 38.When state from then on further will coil 40 when being pressed into, with the center pit edge part of dish 40 outer peripheral face of each pellet shot from a slingshot 38 is pushed, make each pellet shot from a slingshot 38 overcome the power that spring 36 applies and in central part 20, retreat, meanwhile, dish 40 descends along the outer peripheral faces of central part 20.When the upper edge of dish 40 center pit drops to the center of each pellet shot from a slingshot 38 when following, 20 outer peripheral face is protruding from central division because of acting force of the spring for each pellet shot from a slingshot 38, the upper edge that to coil 40 center pit with this power of stretching out is pushed downwards, will dish 40 by on the dish putting surface 15 that is pressed in turntable 10.
To coil 40 states that put on turntable 10 as mentioned above, and by setting circle side face 30 regulation of central part 20 radial position of dish be determined because of coiling 40 center pit edge parts, with the dish putting surface 15 of turntable 10 make coil 40 central shaft to the position be determined.At this state, if drive not shown motor, then coil 40 and turntable 10 be integral rotation, thereby can carry out the record and the reproduction of information signal.
When coiling 40 when turntable 10 takes off, make a finger, for example forefinger contacts with the top of central part 20, and with another finger, for example big finger contact with the neighboring of coiling 40, carries on the outer peripheral edges with dish 40, makes dish 40 relative central parts 20 inclinations.Perhaps contact with the neighboring of coiling 40, dish 40 is not upwards lifted obliquely with finger more than two.The same during with the installation of coiling 40, pellet shot from a slingshot 38 is subjected to coiling pushing of 40 center pit edge, overcomes spring force and retreats, thereby dish 40 can be taken off.
According to the foregoing description, because with the setting circle side face 30 of turntable 10 and the axial rotary and the disc radial position of coiling putting surface 15 regulation dishes 40, for lid 50, owing to only need shaft collar is remained on holding in the recess 25 of turntable 10 with pellet shot from a slingshot 38 and spring 36, as long as so can keep the machining precision of turntable 10, just regulation is coiled 40 axial rotaries and position radially accurately, therefore, the bearing accuracy of energy raising dish 40, and can reach the purpose that reduces cost.In addition, because above-mentioned setting circle side face 30 and dish putting surface 15 are formed one, rather than engage by a plurality of members and to form, thereby, do not produce gap or loosening at setting circle side face 30 and 15 of putting surfaces of dish, the bearing accuracy of dish 40 is improved.
According to the present invention, owing to be provided with dish putting surface and disc radial setting circle side face and hold the pellet shot from a slingshot that shaft collar uses and the turntable that holds recess formation one of the spring that radially outwards pushes this pellet shot from a slingshot and engage with this turntable, above-mentioned pellet shot from a slingshot and spring are remained on the lid that holds in the recess, therefore, as long as can keep the machining precision of turntable, the just axial rotary of regulation dish and position radially accurately, thus can reach the bearing accuracy of raising dish and the purpose that reduces cost.In addition, because setting circle side face and dish putting surface are formed one, rather than a plurality of members are engaged, therefore also make between setting circle side face and dish putting surface and do not produce gap or loosening, the bearing accuracy of dish is improved.
Claims (2)
1. indicator holding device, have the axial location putting surface of described dish on this device and radially decide the face periphery and be a plurality of recesses that hold that hold the pellet shot from a slingshot that described dish elasticity is connected and fixed, it is characterized in that this device is made of by setting-in turntable (10) and lower cover (50), formed cylindric central part (20) on the turntable (10), flange part that extends outside from the lower end of this central part (20) and the above-mentioned a plurality of recesses that hold that form at central part (20), the described dish axial location of the top formation putting surface (15) of above-mentioned flange part, the outer circumference surface of central part (20) constitutes described disc radial setting circle side face (30).
2. according to the described device of claim 1, it is characterized in that go up forming hub portion (10a) and on the upper end of central part (20), forming composition surface (14), go up can be with changeing hub (10a) the chimeric concentric circles hub portion (57) of formation and form engaging claw (53) with composition surface (14) resilient engagement in every end of from the outer edge of lower cover (50), erectting a plurality of elastic arms (52) that form respectively at lower cover (50) at central part (20).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4859493U JPH0719832U (en) | 1993-08-13 | 1993-08-13 | Disk holding device |
| JP48594/93 | 1993-08-13 | ||
| JP0548594 | 1993-08-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1098537A CN1098537A (en) | 1995-02-08 |
| CN1046045C true CN1046045C (en) | 1999-10-27 |
Family
ID=12807739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94107775A Expired - Fee Related CN1046045C (en) | 1993-08-13 | 1994-06-28 | Equipment for protection of disc |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH0719832U (en) |
| CN (1) | CN1046045C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100370792B1 (en) * | 1999-08-04 | 2003-02-05 | 가부시기가이샤 산교세이기 세이사꾸쇼 | Disk-chucking mechanism of motor |
| KR100424402B1 (en) * | 2001-11-03 | 2004-03-24 | 도쿄파츠고교 가부시키가이샤 | Spindle motor |
| JP2008047263A (en) * | 2006-08-21 | 2008-02-28 | Nippon Densan Corp | Chucking apparatus, motor mounted with the chucking apparatus, and disk drive device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03102672A (en) * | 1989-09-14 | 1991-04-30 | Toshiba Corp | Disk player |
| US5014143A (en) * | 1989-03-31 | 1991-05-07 | Hitachi Electronics Engineering Co., Ltd. | Data recording disk chuck mechanism |
| US5228023A (en) * | 1988-12-07 | 1993-07-13 | U.S. Philips Corporation | Turntable assembly, method of manufacturing a turntable assembly, and disc player comprising a turntable assembly |
-
1993
- 1993-08-13 JP JP4859493U patent/JPH0719832U/en active Pending
-
1994
- 1994-06-28 CN CN94107775A patent/CN1046045C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5228023A (en) * | 1988-12-07 | 1993-07-13 | U.S. Philips Corporation | Turntable assembly, method of manufacturing a turntable assembly, and disc player comprising a turntable assembly |
| US5014143A (en) * | 1989-03-31 | 1991-05-07 | Hitachi Electronics Engineering Co., Ltd. | Data recording disk chuck mechanism |
| JPH03102672A (en) * | 1989-09-14 | 1991-04-30 | Toshiba Corp | Disk player |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0719832U (en) | 1995-04-07 |
| CN1098537A (en) | 1995-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6741418B2 (en) | Retainer for an adjustable balance ring in a disc clamp assembly | |
| US7493633B2 (en) | Drive motor for recording disk and recording disk drive using the drive motor for recording disk | |
| US5862120A (en) | Disc table for disc recording/reproducing apparatus and method for producing same | |
| US6556376B1 (en) | Integral hub and disk clamp for a disk drive storage device | |
| CN1178219C (en) | Disk holding device | |
| US7379267B2 (en) | Disc clamp with snap fit for a disc drive | |
| CN1190880C (en) | Shaft motor with CD holder | |
| US5486961A (en) | Resilient compliant clamp for data storage disk drives | |
| US6038206A (en) | Disc table for disc recording/reproducing apparatus and method for producing same | |
| CN1046045C (en) | Equipment for protection of disc | |
| EP0117688B1 (en) | Spindle clamp for disk drives utilizing removable recording disks | |
| CA1186240A (en) | Disc player for a rigid information-carrying disc | |
| CN1229242A (en) | Gripper mechanism for recording disk | |
| CN1656551A (en) | Spindle motor | |
| US6072767A (en) | Turntable device for an optical disk | |
| US4783717A (en) | Apparatus for rotating a disk | |
| US20010030929A1 (en) | Disk centering apparatus | |
| US20020157579A1 (en) | Turntable for a disc-shaped information carrier and player provided with such a turntable | |
| US5117414A (en) | Drive motor and spindle assembly for an optical disk drive | |
| KR100468759B1 (en) | Cam-holder for supporting guide shaft of optical disc player | |
| JP3791867B2 (en) | Disk rotation drive device | |
| KR100519809B1 (en) | A device for supporting the shaft of spindle motor | |
| KR100514253B1 (en) | Apparatus for driving optical disc | |
| KR100362365B1 (en) | Disc cartridges and their chucking devices | |
| KR20030018533A (en) | Disk fixed device of disk player |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |