CN1652244A - Member for bearing core of CD ROM - Google Patents
Member for bearing core of CD ROM Download PDFInfo
- Publication number
- CN1652244A CN1652244A CN 200510005893 CN200510005893A CN1652244A CN 1652244 A CN1652244 A CN 1652244A CN 200510005893 CN200510005893 CN 200510005893 CN 200510005893 A CN200510005893 A CN 200510005893A CN 1652244 A CN1652244 A CN 1652244A
- Authority
- CN
- China
- Prior art keywords
- bearing carrier
- pedestal
- elastic
- rom drive
- movement
- 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.)
- Pending
Links
Images
Landscapes
- Moving Of Heads (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
The present invention relates to an optical drive, including a machine core, having a motor foe rotating an optical disk and a rotary disk for bearing said optical disk; a base seat, having an elastic portion and a guide portion, in which said elastic portion is a spherical form; and a bearing member for bearing said machine core. Said bearing member has a guided portion correspondent to said guide portion and a matching portion correspondent to said elastic portion, said guide portion can be used for guiding said guided portion, and can make said bearing member move between a first portion and a second position.
Description
The present invention be the Chinese invention patent application (application number: 02119388.6, the applying date: on May 15th, 2002, denomination of invention: the dividing an application bearing carrier of CD-ROM drive movement).
Technical field
The present invention relates to a kind of bearing carrier of CD-ROM drive movement, particularly relate to a kind of bearing carrier that reduces the CD-ROM drive movement of resonance and noise.
Background technology
In recent years, the use of CD-ROM drive and CD is more prevalent.The CD that is sold on the market at present, its shape trend variation except that traditional circular CD, various non-circular CDs occurred, for example business card type CD or modelling pattern CD etc.; And because manufacturer is numerous, so quality discrepancy is also big, and makes CD often produce the phenomenon of off-centre (eccentric), and running is impacted.
See also Fig. 1, it illustrates the framework of general CD-ROM drive carrying disc.The mechanism of existing CD-ROM drive 100 carrying discs 160 can be divided into three parts usually, i.e. movement 110, pedestal 120 and bearing carrier 130.Movement 110 reaches 114 formations of a rotating disk (turn table) in order to carrying disc 160 normally by the motor 112 in order to rotating disc 160.Pedestal 120 is as the foundation structure of CD-ROM drive 100.Bearing carrier 130 is movably to be connected with pedestal 120, and in order to carrying movement 110, so that the predeterminated position of CD 160 when static is transported to specific position of rotation to be rotated.Wherein, because bearing carrier 130 movably is connected in pedestal 120, therefore on pedestal 120, can be provided with the mechanism of guiding bearing carrier 130 motions usually.
Above-mentioned existing CD-ROM drive 100 is when turning round, because CD 160 can produce situations such as noise and vibration because of the influence of off-centre etc.At this moment, because bearing carrier 130 movably is connected in pedestal 120, therefore possibility produces resonance effect because of the bad vibration to CD 160 of support between the two, and strengthens the generation of noise.Therefore, existing CD-ROM drive proposes multiple improvement for the design of bearing carrier 130 and pedestal 120, with the enhancing support effect, and reduces resonance, makes bearing carrier 130 can stablize carrying movement 110, and the while moves smooth-goingly.
Below see also Fig. 2 a and Fig. 2 b, the existing CD-ROM drive of two kinds of different structures is described respectively, its difference mainly is the movable connected mode of bearing carrier 130 and pedestal 120.
Fig. 2 a shows the existing CD-ROM drive that uses the swing type bearing carrier.Wherein, bearing carrier 130 is a carrying swing arm 130a, swing up and down with a fulcrum 132 (a for example pivot) corresponding to pedestal 120, and make CD 160 when static predeterminated position and specific position of rotation between move.Wherein, for making the no-float of bearing carrier 130 and pedestal 120, can be when design by the size of control pedestal 120 with bearing carrier 130, and make between the two tolerance clearance d1 and d2 dwindle.Yet, this design also can't make the resonance situation of bearing carrier 130 obviously improve, simultaneously when pedestal 120 and bearing carrier 130 are produced in batches, must be to the strict control of the dimensional accuracy of tolerance clearance d1 and d2, otherwise easily cause problems such as poor fit or interference, and make bearing carrier 130 smooth-goingly to move.
Fig. 2 b shows the existing CD-ROM drive that uses the slidingtype bearing carrier.Wherein, bearing carrier 130 is a carrying sliding part 130b, guiding groove 122 by pedestal 120 is corresponding with carrying sliding part 130b slide block 134, make carrying sliding part 130b slide up and down with respect to pedestal 120, and make CD 160 when static predeterminated position and specific position of rotation between move.So design with the design of Fig. 2 a and compare, because guiding groove 122 is a linear slide with slide block 134, tolerance clearance d3 between the two and d4 are easier to be dwindled.Yet, the design of Fig. 2 b still has the problem similar to Fig. 2 a, promptly can't obviously improve the resonance situation of bearing carrier 130, and when pedestal 120 is produced in batches with bearing carrier 130, the dimensional accuracy of tolerance clearance d3 and d4 needs strict control, otherwise easily cause problems such as poor fit or interference, and make bearing carrier 130 smooth-goingly to slide.
In addition, Fig. 3 shows another existing CD-ROM drive design, in order to solve the tolerance clearance problem that control is difficult for when processing between said base 120 and the bearing carrier 130, the CD-ROM drive of Fig. 3 is not sought reducing of tolerance clearance, but between pedestal 120 and bearing carrier 130, increase by a flexible member 140, an elastic buffer pad for example keeping good cooperation, and has the buffering effect of vibration damping.So design can absorb vibrational energy by flexible member 140, reduces resonance effect and noise.Yet owing to must increase by an elastic body 140, so the element cost improves, and flexible member 140 must be connected in via extra manufacturing process between pedestal 120 and the bearing carrier 130, makes the CD-ROM drive assembling increase man-hour, the efficient attenuating.In addition, in case elastic body 140 is out of shape because of factors such as material variation or elastic fatigues, then may influence the stability of bearing carrier 130 motions on the contrary.
Summary of the invention
The objective of the invention is to propose a kind of bearing carrier of CD-ROM drive movement, under the situation that does not add element, by the design of bearing carrier and pedestal itself, make bearing carrier and pedestal stablize and be connected, and take into account the smooth-going degree of bearing carrier motion and the stability of carrying movement and CD simultaneously.
The invention provides a kind of CD-ROM drive, comprising: a movement, have in order to rotate a motor of a CD, reach in order to carry a rotating disk of this CD; One pedestal has an elastic and a guidance part, and wherein this elastic is a dome shape; An and bearing carrier, in order to carry this movement, this bearing carrier has corresponding to one of this guidance part be guided portion and corresponding to an auxiliary section of this elastic, this guidance part is guided this and is guided portion and this bearing carrier is moved between a primary importance and a second place.
In the CD-ROM drive of the present invention, elastic can have elasticity at two-dimensional space or three-dimensional direction, for example is a hollow cylinder, and the cylindrical wall mask has many cracks, to produce elasticity by the crack.Simultaneously, then can be a hole corresponding to the auxiliary section of elastic, the rough external diameter that is matched with hollow cylinder of its internal diameter produces buffering effect with the elasticity by cylinder.Again, guidance part can be a chute, and the portion of being guided can be the slide block corresponding to this chute.
In addition, in the CD-ROM drive of the present invention, bearing carrier can swing up and down between this primary importance and this second place with a fulcrum corresponding to this pedestal, or slides up and down between this primary importance and this second place corresponding to this pedestal.
Description of drawings
Fig. 1 is the synoptic diagram of existing CD-ROM drive carrying disc framework;
Fig. 2 a is the synoptic diagram of the existing CD-ROM drive of use swing type bearing carrier;
Fig. 2 b is the synoptic diagram of the existing CD-ROM drive of use slidingtype bearing carrier;
Fig. 3 is for using the synoptic diagram of the existing CD-ROM drive that adds flexible member;
Fig. 4 is the synoptic diagram of the CD-ROM drive framework of demonstration one embodiment of the invention;
Fig. 5 a is the synoptic diagram of the bearing carrier of demonstration the foregoing description;
Fig. 5 b is the elastic of demonstration the foregoing description and the front elevation of auxiliary section;
Fig. 5 c is the elastic of demonstration the foregoing description and the vertical view of auxiliary section.
Embodiment
See also Fig. 4, the framework of the CD-ROM drive carrying disc of one embodiment of the invention is described.The mechanism and the existing structure of CD-ROM drive 1 carrying disc 60 of the present invention are similar, include movement 10, pedestal 20 and bearing carrier 30.Wherein, movement 10 has in order to the motor 12 of rotating disc 60 and in order to the rotating disk (turn table) 14 of carrying disc 60.Pedestal 20 has an elastic 22 and a guidance part (not shown) as the foundation structure of CD-ROM drive 1, and wherein guidance part can be the guiding groove 122 in the existing structure shown in Fig. 2 b.
In addition, bearing carrier 30 movably be connected with pedestal 20 and in order to the carrying movement 10.The bearing carrier 30 of present embodiment can be referring to shown in Fig. 5 a, it is a swing type bearing carrier, have the portion that is guided (for example two slide blocks 34 shown in Fig. 5 a) corresponding to guidance part (for example chute), and corresponding to the auxiliary section 32 (for example two holes 32 shown in Fig. 5 a) of elastic 22.So, can be guided portion's (slide block) 34 by guidance part (chute) guiding, and bearing carrier 30 is moved between a primary importance (predeterminated position when for example CD is static) and a second place (for example position of rotation of CD).
See also Fig. 5 b and Fig. 5 c, describe the elastic 22 of present embodiment and cooperating of auxiliary section 32 in detail.In the present embodiment, the elastic 22 of pedestal 20 is a hollow cylinder of being given prominence to by pedestal 20 surfaces shown in Fig. 5 b, and the cylindrical wall mask has many cracks, to produce elasticity by the crack.Simultaneously, be the rough hole that is matched with hollow cylinder 22 external diameters of internal diameter corresponding to the auxiliary section 32 of elastic 22, with shown in Fig. 5 c, the resilient engagement by cylinder 22 and hole 32 produces buffering effect.
In this mandatory declaration, above-mentioned hollow cylinder 22 with crack can directly be made when pedestal 20 moulding, therefore only needs the design of change pedestal 20, can be formed in the lump by single manufacturing process, do not need to process, and need not increase element by extra manufacturing process.In addition, because hollow cylinder 22 is formed in one with pedestal 20, its material is also identical, therefore is difficult for producing phenomenons such as distortion or elastic fatigue, can keep more permanent serviceable life.
In the present embodiment, elastic 22 is at the direction rubber-like hollow cylinder of two-dimensional space, so that the vibration with CD 60 parallel directions is cushioned.Yet elastic 22 of the present invention also can be designed in three-dimensional direction rubber-like structure, and for example the structure of a dome shape so can be cushioned in the lump together with the vertical vibration of CD 60, and further reduces the phenomenon of resonance and noise.
In addition, in the present embodiment, bearing carrier 30 is a swing type bearing carrier, that is to say, bearing carrier 30 swings up and down between the primary importance and the second place with a fulcrum corresponding to pedestal 20 as the existing carrying swing arm 130a of Fig. 2 a.Yet the present invention also can be applicable to that is to say that bearing carrier 30 of the present invention also can be arranged to slide up and down between the primary importance and the second place corresponding to pedestal 20 on the existing slidingtype bearing carrier as Fig. 2 b.
The bearing carrier design of CD-ROM drive movement of the present invention, compare with the design of existing CD-ROM drive, can not add element and not increase under the situation of unnecessary manufacturing process, by the auxiliary section 32 of bearing carrier 30 and the resilient engagement design of the elastic 22 of pedestal 20, make bearing carrier 30 and 20 stable connections of pedestal, and available buffer reduces the phenomenon of resonance because of noise and vibrations that phenomenon produced such as CD 60 off-centre, and takes into account the stability of smooth-going degree with the carrying movement and the CD of bearing carrier motion simultaneously.
Though disclosed the present invention in conjunction with above concrete preferred embodiment; yet it is not in order to limit the present invention; any those skilled in the art without departing from the spirit and scope of the present invention; still can do a little change and retouching, so protection scope of the present invention should be with being as the criterion that claim was defined in.
Claims (1)
1. CD-ROM drive comprises:
One movement has in order to rotate a motor of a CD, reaches in order to carry a rotating disk of this CD;
One pedestal has an elastic and a guidance part, and wherein this elastic is a dome shape; And
One bearing carrier, in order to carry this movement, this bearing carrier has corresponding to one of this guidance part be guided portion and corresponding to an auxiliary section of this elastic, this guidance part is guided this and is guided portion and this bearing carrier is moved between a primary importance and a second place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510005893 CN1652244A (en) | 2002-05-15 | 2002-05-15 | Member for bearing core of CD ROM |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510005893 CN1652244A (en) | 2002-05-15 | 2002-05-15 | Member for bearing core of CD ROM |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02119388 Division CN1213423C (en) | 2002-05-15 | 2002-05-15 | Bearing member for CD drive machine core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1652244A true CN1652244A (en) | 2005-08-10 |
Family
ID=34875201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510005893 Pending CN1652244A (en) | 2002-05-15 | 2002-05-15 | Member for bearing core of CD ROM |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1652244A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708908A (en) * | 2012-06-14 | 2012-10-03 | 昆山维金五金制品有限公司 | Lower support frame of DVD mechanism |
-
2002
- 2002-05-15 CN CN 200510005893 patent/CN1652244A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102708908A (en) * | 2012-06-14 | 2012-10-03 | 昆山维金五金制品有限公司 | Lower support frame of DVD mechanism |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1787081A (en) | Shipping comb for moving actuator of hard disk drive | |
| CN1402871A (en) | Tolerance ring with low consistent installation force profile | |
| CN1187736C (en) | Read/write head suspension assembly of disk driver | |
| CN110739796A (en) | Drive system with vibration-damped transmission | |
| CN1213423C (en) | Bearing member for CD drive machine core | |
| CN1038068C (en) | Scanning optical apparatus | |
| CN1652244A (en) | Member for bearing core of CD ROM | |
| CN1311429C (en) | Information head arm assembly and disc drive device having same | |
| CN1136559C (en) | Objective driving apparatus | |
| CN1381834A (en) | Suspension of disc driver | |
| CN1258174C (en) | Magnetic head supporting mechanism, magnetic head apparatus, head actuator using the magnetic head apparatus and magnetic recording apparatus | |
| JP2004204889A (en) | Fixing construction for plate member and disk device having the structure | |
| TWM574245U (en) | Miniature biaxial optical actuator | |
| CN212623538U (en) | Ultra-miniature projection optical actuator | |
| CN115128798A (en) | Two-dimensional rapid control reflector with large deflection angle and high vibration resistance | |
| CN205507195U (en) | Level crossing adjusting device | |
| CN1224004C (en) | Actuator of hard disk driver | |
| JP2006170957A (en) | Tilted stage | |
| CN2627270Y (en) | Aggregate unit for preventing relative motion | |
| CN2626008Y (en) | Optical disk drive having positioning guide bar and fixing structure for preventing distortion of the same | |
| US6317295B1 (en) | Adjustment apparatus for magnetic head device | |
| JP3477684B2 (en) | Bearing structure | |
| JPH10233085A (en) | Optical disk device | |
| CN1661414A (en) | Arrangement for tipping a table | |
| CN200951512Y (en) | Optical secondary aspherical surface concave parts copying processing apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |