CN101339786B - Disc clamping rotary plate - Google Patents
Disc clamping rotary plate Download PDFInfo
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- CN101339786B CN101339786B CN200710122802XA CN200710122802A CN101339786B CN 101339786 B CN101339786 B CN 101339786B CN 200710122802X A CN200710122802X A CN 200710122802XA CN 200710122802 A CN200710122802 A CN 200710122802A CN 101339786 B CN101339786 B CN 101339786B
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- mentioned
- rotary plate
- rainbow
- clamping rotary
- video disc
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Abstract
The invention relates to disk clamping rotary table, comprising a round disk and a central guiding part formed by an integral protruding of the central portion of the round disk. The central guiding part comprises three cut parts and clamping parts arranged at the extension with equal distance and elastic cut pieces extended respectively from the lower vertical part of the peripheral side and thecut part between the clamping parts; the center of the elastic cut pieces is cut; the clamping parts comprise a lower rainbow extended from the body of the central guiding part, a vertical rainbow extended vertically from the front end of the lower rainbow, and a bent part formed at the upper side of the vertical rainbow, and the bent part is partly protruding at the peripheral side; the elastic cut pieces comprise a first cut piece and a second cut piece with a part protruding toward the outer side of the lower vertical part. The disk clamping rotary table of the invention is not provided with a steel ball, an O-shaped ring or a T-bushing with the same functions and is formed integrally by injection, thus obviously simplifying the current manufacturing technique and obviously reducing manufacturing cost and additional expense.
Description
Technical field
The present invention relates to a kind of disc clamping rotary plate, particularly a kind ofly do not need to append assembling parts, the also rotating disk of video discs such as (chucking) CD of clamping stably or DVD.
Background technology
Existing turntable structure is divided into two classes by having or not clamping device.
At first, accompanying drawing 1a is the skeleton diagram of turntable structure of comparatively low precision that is applicable to the CD-ROM etc. of home-use CD Player and desk-top computer, illustrated by the circular discs 12 that supports video disc D (with reference to figure 1b) bottom, and be integrally formed at circular discs 12 central parts, be used to insert the rotating disk 10 of columnar centre pilot parts 14 formations of the center pit H that accommodates video disc.
In more detail, have integrally formed middle hole shape bobbin 14a, be inserted with the turning axle S of spindle motor M in the bobbin 14a in the bottom of centre pilot parts 14.In addition, be formed with the rake 14b that is used for playing lubrication on the centre pilot parts 14 to the insertion of video disc.
The diameter of the center pit H of above-mentioned video disc is 15.00mm～15.20mm, has the tolerance of 0.20mm, and the diameter R of centre pilot parts 14 is standardized as maximum 15.00mm.Thereby be inserted at the center pit of video disc under the situation of centre pilot parts 14 and bias toward a side easily with tolerance.And, do not possess centering position (centering) on the above-mentioned rotating disk 10 and fixing clamping (chucking) device, therefore under the situation of rotating disk rotation, video disc departs from the tolerance size and rocks or shake from central shaft.
Can not correctly read the data that write down on the video disc under the situation of shaking that shakes when as everyone knows, video disc rotates.
What be used to address the above problem is above-mentioned clamping device, and the structure with rotating disk of clamping device roughly is illustrated in Fig. 2 a to Fig. 2 d.Illustrated rotating disk 20 comprises the circular discs 21 that supports the video disc bottom surface, and the columnar centre pilot parts 22 that insert the center pit of video disc, equidistantly disposes three steel balls 23 respectively with 120 degree near the upper front end of the outer peripheral face of centre pilot parts 22.This steel ball 23 is possessed in the O shape ring 24 of centre pilot parts 22 inner faces and resiliency supported, and outwards side face outside is outstanding for its part.And, equidistantly disposing with 120 degree between above-mentioned three steel balls 23 by the elastic anchorage force of above-mentioned O shape ring 24 and from the outstanding a part of T-axle bush 25 of above-mentioned outer peripheral face.
Observe and illustrated video disc to insert Fig. 2 a of state before, steel ball 23 is from the outstanding part of the outer peripheral face of center guiding parts 22 as can be seen, the edge part of video disc center pit is tangential on when downward side direction descends in the above-mentioned outstanding steel ball 23 under this state, and 23 pairs of O shapes rings 24 of steel ball carry out elastic compression and move to outer peripheral face is inboard.Afterwards, when being installed on circular discs 22 fully, the bottom surface of video disc, keeps the state (clamping) that the edge part upper front end of above-mentioned center pit is pushed out to the direction at diagonal angle simultaneously by being restored its positions by the elastic-restoring force steel ball 23 of the O shape of elastic shrinkage ring 24.
And, descend along with the downward side direction of video disc and side shifting inwards by O shape ring 24 outstanding T-axle bushes 25, when being inserted with video disc, keep the state of the edge part of center pit being pushed to the outside by the elastic-restoring force of O shape ring 24.Such constitutional diagram is shown in Fig. 2 c.
Thereby by the work with 3 steel balls 23 and the T-axle bush 25 of equidistant configuration, even be inserted with the video disc with tolerance, above-mentioned video disc correctly is not positioned on the central shaft of rotating disk with not laying particular stress on yet, can not rock simultaneously or rotation stably joltily.
Above-mentioned rotating disk 20 is rotating disks of high precision comparatively, and more specifically example is known in Korea S's publication 10-1999-83008 number, is be evaluated as in its function aspects: be outstanding in the rotating disk that is developed at present.
But, above-mentioned rotating disk 20 is assembled basically and is constituted steel ball, O shape ring and T-axle bush, therefore has following problem: produce the packing engineering complicated problems, and because the complexity of engineering causes the problem that fraction defective increases, each component parts assembling parts need pass through the independently problem of engineering making, thus the problem of the increase of manufacturing cost that causes and attendant expense thereof.
Summary of the invention
(1) technical matters that will solve
In order to address the above problem a little, the objective of the invention is to, a kind of steel ball, O shape ring and T-axle bush that does not need assembling separately is provided, also can carry out the disc clamping rotary plate of these functions.
(2) technical scheme
For achieving the above object, the present invention adopts following technical scheme:
Disc clamping rotary plate of the present invention (Turntable for chucking disc), comprise rotating disk, the circular discs of video disc is installed and gives prominence to the centre pilot parts that form and be inserted in the center pit of video disc in the central portion one of above-mentioned circular discs, wherein above-mentioned centre pilot parts comprise, being positioned at 3 cut and 3 hold assemblies of its extension equally spacedly, and the peristome that forms between above-mentioned hold assembly respectively and prolong from the downside vertical component effect of the outer peripheral face of above-mentioned centre pilot parts forms and elasticity that its central authorities are cut open is cut sheet; Above-mentioned hold assembly comprises, the bottom rainbow that prolongs towards the outside from the extension of above-mentioned centre pilot parts and prolong the vertical rainbow that forms from bottom rainbow front end is vertical, and be formed on vertical rainbow upside and from some bend of giving prominence to of above-mentioned outer peripheral face; The central authorities that above-mentioned elasticity is cut sheet are cut open and form the 1st incision sheet and the 2nd incision sheet, and the 1st incision sheet and the 2nd incision sheet are given prominence to a part of to the above-mentioned downside vertical component effect outside.
Above-mentioned hold assembly, when inserting video disc, the edge part by the video disc center pit flexibly is out of shape to centre pilot parts inboard.
Above-mentioned elasticity is cut sheet, and when inserting video disc, the edge part by the video disc center pit flexibly is out of shape to centre pilot parts inboard.
Above-mentioned circular discs include step with certain altitude and the liner that is arranged at above-mentioned step inboard on its upper epitaxial, and above-mentioned height is with identical with above-mentioned gasket height.
Above-mentioned circular discs, its upper side comprise 3 lining fixings by equidistant configuration, and above-mentioned lining fixing comprises and is roughly columnar depressed part and projection.
Above-mentioned outer peripheral face also comprises the upside rake that prolongs from above-mentioned downside vertical component effect.
Above-mentioned rotating disk is a kind of material in plastic cement, ethane or the silicon, and integral injection molding.
Above-mentioned centre pilot parts also comprise, in the central the middle hole shape bobbin that combines with the axle of spindle motor.
(3) beneficial effect
The advantage and the good effect of disc clamping rotary plate of the present invention are:
Disc clamping rotary plate according to the present invention has not needs and appends assembling steel ball O shape ring, T-axle bush, also can play the effect of these functions.
And rotating disk of the present invention as previously described, and is obviously simple than existing manufacturing process because can the one ejection formation, thereby has manufacturing expense and the significantly reduced effect of additional expense.
Description of drawings
Fig. 1 a is the synoptic diagram of existing low precision rotating disk;
Fig. 1 b is the synoptic diagram of video disc;
Fig. 2 a to Fig. 2 d is the synoptic diagram of existing high precision rotating disk;
Fig. 3 a is the planimetric map according to rotating disk of the present invention;
Fig. 3 a ' is the longitudinal diagram according to rotating disk of the present invention;
Fig. 3 b is the top oblique view according to rotating disk of the present invention;
Fig. 3 c is the bottom oblique view according to rotating disk of the present invention;
Fig. 4 a is the enlarged drawing of the hold assembly shown in Fig. 3 a;
Fig. 4 b is the synoptic diagram of the running of the hold assembly shown in Fig. 3 a;
Fig. 4 c is the enlarged drawing that the elasticity shown in Fig. 3 a is cut sheet;
Fig. 4 d is the synoptic diagram that the elasticity shown in Fig. 3 a is cut the running of sheet;
Fig. 5 is the synoptic diagram according to rotating disk of the present invention that is incorporated into spindle motor;
Fig. 6 a to Fig. 6 b is the synoptic diagram that shows variant embodiment of the present invention; Wherein
Fig. 6 a is a front view;
Fig. 6 b is the left view of Fig. 6 a;
Fig. 6 c is the upward view of Fig. 6 a;
Fig. 6 d is the rear view of Fig. 6 a;
Fig. 6 e is an oblique view.
The explanation * * * of main symbol in the * * accompanying drawing
100: disc clamping rotary plate
110: circular discs
111: step
113: lining fixing
120: the centre pilot parts
121: bobbin
123: outer peripheral face
123a: upside rake 123b: downside vertical component effect
125: hold assembly 125a: bottom rainbow (iris)
125b: vertical rainbow 125c: bend
127: elasticity is cut sheet 127a: the 1st cuts sheet
127b: the 2nd cuts sheet D: video disc
H: center pit P: liner
Embodiment
Feature of the present invention and advantage can be very clear and definite by explaining below with reference to the accompanying drawings.
Before the explanation, term that this specification and claims scope is used or word are for the invention with the best way explanation oneself by the inventor, from term being provided the principle of only definition, should explain with the meaning and the notion of technological thought according to the invention.In addition, omit it in the time of can having influence on main idea of the present invention to specifying of known function related to the present invention and formation thereof and specify, please be careful this if judge.
At first, disc clamping rotary plate 100 (being designated hereinafter simply as ' rotating disk ') according to the preferred embodiment of the invention reaches shown in Fig. 3 b as Fig. 3 a, Fig. 3 a ', comprises circular discs 110 that video disc D (with reference to figure 1) is installed and the centre pilot parts 120 that are integrally formed in above-mentioned circular discs central portion.
In addition, on circular discs 110, has the lining fixing 113 of equidistant configuration with 120 degree angles.Lining fixing 113 comprises, is roughly columnar depressed part 113a and projection 113b.Thereby preferably, the bottom surfaces at above-mentioned liner is formed with the outstanding or hollowly formation that adapts with the lining fixing shape.
The tab-like integratedly circular discs 110 upper central positions that are formed in of above-mentioned centre pilot parts 120, its central authorities have the bobbin 121 that combines with the axle of spindle motor.In addition, the outer peripheral face 123 of centre pilot parts is formed with upside rake 123a and downside vertical component effect 123b, and upside rake 123a is inserted in centre pilot parts 120 sleekly and sliding function is provided for the center pit H that can make video disc D.
Have 3 cut 11 (with reference to figure 4a) and 3 hold assemblies 125 that are roughly " L " font according to the extension of the centre pilot parts 120 in the feature of the present invention with 120 degree spaced sets.
In more detail, cut 11 provides the space for hold assembly 125 can be worked more sleekly.
In addition, hold assembly 125 comprises, the bottom rainbow 125a that prolongs from the extension of center guiding parts 120, the vertical rainbow 125b that vertically is extended from bottom rainbow front end, and be formed at vertical rainbow upside bend 125c.Wherein, ' main body ' this term in the claim is meant the main body of centre pilot parts, but preferably is interpreted as the main body of rotating disk 100.
Bend 125c forms from the outstanding parts of the outer peripheral face 123 of center guiding parts 120, and the edge part of the video disc center pit that is inserted into situation as the steel ball (with reference to figure 2a and Fig. 2 b) of front is tangent.At length, the edge part of center pit was tangent with the upside of above-mentioned bend 125c when video disc inserted, thereby along with the downward side direction decline of video disc, made bottom rainbow 125a and the inboard elastic deformation of vertical rainbow 125b to centre pilot parts 120.
Afterwards, along with the bottom surface of video disc D is installed on circular discs 110 fully, bottom rainbow 125a and vertical rainbow 125b recovery of elasticity, shown in Fig. 4 b, the downside of keeping bend 125c pushs out state (clamping) from the edge part upside of above-mentioned center pit to the downside diagonal.
On the other hand, centre pilot parts 120, be formed with on its extension with 120 degree equidistantly with hold assemblies with the spacings of 60 degree isolate 3 peristomes being formed between above-mentioned 3 hold assemblies 125, and from the elasticity that downside vertical component effect 123b prolongs and its central authorities the are cut open incision sheet 127 of above-mentioned outer peripheral face 123.
In more detail, with reference to figure 4c, above-mentioned elasticity is cut sheet 127 and is made of the 1st incision sheet 127a and the 2nd incision sheet 127b, and these form from downside vertical component effect 123b is outwards outstanding.Elasticity with such formation is cut sheet 127 execution and existing T-axle bush (with reference to figure 2a) identical functions, shown in Fig. 4 d, insertion along with video disc, the 1st incision sheet 127a and 2nd tangent with the edge part of its center pit cuts the inboard elastic deformation of sheet 127b to centre pilot parts 120, the bottom surface of video disc be installed in circular discs 110 during by elastic restoring force, make the state that the edge part with center pit pushs out laterally of keeping.
As mentioned above, by extension 3 hold assemblies 125 and 3 runnings that elasticity is cut sheet 127 equidistantly to possess along centre pilot parts 120, the video disc D that is inserted in centre pilot parts 120 does not lay particular stress on centering position, ground, can be positioned at stable position even be inserted with the video disc with tolerance yet.
Even rotating disk 100 rotates to a direction by the rotary driving force of spindle motor M, video disc D can not break away from or shake, exactly the data of reading and recording on video disc D thereby as shown in Figure 5.
The material of rotating disk 100 in the present embodiment can be set at plastic cement basically, but also can be set at materials such as ethane or silicon, but the invention is not restricted to above-mentioned material.
Above-mentioned according to rotating disk 100 of the present invention, with existing technology (with reference to figure 2b) when comparing, can know have steel ball fully, the function of O shape ring, T-axle bush.In addition, rotating disk 100 of the present invention is one to inject the structure that forms except the pad P that possesses in addition.
More than in order to illustrate technological thought of the present invention, be illustrated and illustrate for preferred embodiment, but under the situation that does not break away from the technological thought scope, for a plurality of changes of the present invention and modification, can both be understood well by those skilled in the art.For example,, make the embodiment (Reference numeral of circular discs is 110) of the distortion as shown in Fig. 6 a to Fig. 6 e, also can minimize for " circular discs " mentioned above.
Claims (8)
1. disc clamping rotary plate, described rotating disk (100) comprise, the circular discs (110) of video disc (D) be installed and, it is characterized in that at the outstanding centre pilot parts (120) that form and be inserted in the center pit (H) of video disc of central portion one of above-mentioned circular discs,
Above-mentioned centre pilot parts (120) comprise, with 3 cut (11) and 3 hold assemblies (125) that are positioned at its extension equally spacedly, and the elasticity that the peristome that forms between above-mentioned hold assembly respectively and prolong from the downside vertical component effect (123b) of the outer peripheral face (123) of above-mentioned centre pilot parts (120) towards above-mentioned peristome forms and its central authorities are cut open is cut sheet (127);
Above-mentioned hold assembly (125) comprises, the bottom rainbow (125a) that prolongs towards the outside from the extension of above-mentioned centre pilot parts and prolong the vertical rainbow (125b) that forms from bottom rainbow front end is vertical, and be formed on vertical rainbow upside and from some bend (125c) of giving prominence to of above-mentioned outer peripheral face;
The central authorities that above-mentioned elasticity is cut sheet (127) are cut open and form the 1st incision sheet (127a) and the 2nd incision sheet (127b), and the 1st incision sheet (127a) and the 2nd incision sheet (127b) are given prominence to a part of to above-mentioned downside vertical component effect (123b) outside.
2. the described disc clamping rotary plate of claim 1 is characterized in that, above-mentioned hold assembly (125), and when inserting video disc (D), the edge part by video disc center pit (H) flexibly is out of shape to centre pilot parts (120) inboard.
3. the described disc clamping rotary plate of claim 1 is characterized in that, above-mentioned elasticity is cut sheet (127), and when inserting video disc (D), the edge part by video disc center pit (H) flexibly is out of shape to centre pilot parts (120) inboard.
4. the described disc clamping rotary plate of claim 1, it is characterized in that, above-mentioned circular discs (110), include on its upper epitaxial have certain altitude (h) step (111) and be arranged at the inboard liner (P) of above-mentioned step (111), and above-mentioned height (h) is identical with the height of above-mentioned liner (P).
5. the described disc clamping rotary plate of claim 1, it is characterized in that, above-mentioned circular discs (11 0), its upper side comprise 3 lining fixings (113) by equidistant configuration, and above-mentioned lining fixing comprises and is roughly columnar depressed part (113a) and projection (113b).
6. the described disc clamping rotary plate of claim 1 is characterized in that, above-mentioned outer peripheral face (123) also comprises the upside rake (123a) that prolongs from above-mentioned downside vertical component effect (123b).
7. the described disc clamping rotary plate of claim 1 is characterized in that, above-mentioned rotating disk (100) is a kind of material in plastic cement, ethane or the silicon, and integral injection molding.
8. the described disc clamping rotary plate of claim 1 is characterized in that, above-mentioned centre pilot parts (120) also comprise, in the central the middle hole shape bobbin (121) that combines with the axle (S) of spindle motor (M).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710122802XA CN101339786B (en) | 2007-07-04 | 2007-07-04 | Disc clamping rotary plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710122802XA CN101339786B (en) | 2007-07-04 | 2007-07-04 | Disc clamping rotary plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101339786A CN101339786A (en) | 2009-01-07 |
| CN101339786B true CN101339786B (en) | 2010-12-08 |
Family
ID=40213827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710122802XA Expired - Fee Related CN101339786B (en) | 2007-07-04 | 2007-07-04 | Disc clamping rotary plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101339786B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101760917B1 (en) * | 2011-10-24 | 2017-07-24 | 주식회사 히타치엘지 데이터 스토리지 코리아 | Disc clamping unit and spindel motor having the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233828A (en) * | 1998-04-09 | 1999-11-03 | 索尼公司 | Disk player with disk chucking device |
| CN1399263A (en) * | 2001-04-27 | 2003-02-26 | 索尼公司 | Disk Holder, disk driver, disk and its making process |
-
2007
- 2007-07-04 CN CN200710122802XA patent/CN101339786B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1233828A (en) * | 1998-04-09 | 1999-11-03 | 索尼公司 | Disk player with disk chucking device |
| CN1399263A (en) * | 2001-04-27 | 2003-02-26 | 索尼公司 | Disk Holder, disk driver, disk and its making process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101339786A (en) | 2009-01-07 |
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Granted publication date: 20101208 Termination date: 20150704 |
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