CN1770291A - Chucking apparatus and recording disk drive motor having chucking apparatus - Google Patents
Chucking apparatus and recording disk drive motor having chucking apparatus Download PDFInfo
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- CN1770291A CN1770291A CN 200510109470 CN200510109470A CN1770291A CN 1770291 A CN1770291 A CN 1770291A CN 200510109470 CN200510109470 CN 200510109470 CN 200510109470 A CN200510109470 A CN 200510109470A CN 1770291 A CN1770291 A CN 1770291A
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Abstract
The invention provides a chucking device. A second inclined surface ( 84 c) which abuts against a recording disk of a chuck pawls ( 84 ) of a recording disk holding mechanism ( 80 ), and a third inclined surface ( 84 d) which is a curved surface for guiding chucking motion of the chuck pawls ( 84 ) are provided. A boundary between the second inclined surface ( 84 c) and the third inclined surface ( 84 d) is formed with a stepped recess approaching a base.
Description
Technical field
The present invention relates to a kind of be used to place and hold the record gripping mechanism that coils and the recording disk drive motor that this gripping mechanism is installed.
Background technology
As using the recording disk drive motor of gripping mechanism in the past, motor shown in Figure 10 is known.The rotary part 1 of this motor has: axle 3 makes axle 3 rotatable supports freely by the sleeve 2 as parts of bearings; Rotor holder 4 is fixed on axle 3 axis direction top; And gripping mechanism 5, the rotor holder 4 of axle 3 is fixed on axial upside relatively.Gripping mechanism 5 has: the center housing 5a chimeric with indicator 6; A plurality of chucking claw 5c in the impartial arrangement of circumferencial direction, pass through elastomeric element 5b respectively towards the radial direction outside application of force on this centers housing 5a; And a plurality of aligning rake 5d, carry out the aligning of indicator 6.Radial direction outboard end at the bottom surface sections 4a of rotor holder 4 is formed with the indicator placed side 4b that places indicator 6, and side is fixed with rubber 4c thereon.
For indicator 6 is installed on this motor, the center through hole of indicator 6 is installed in the housing 5a that centers in identical with a plurality of aligning rake 5d of gripping mechanism 5.When the center of indicator 6 through hole begins to embed when centering in the housing 5a, each chucking claw 5c is pressed and towards radius of turn direction medial movement at the inner peripheral surface of the center of indicator 6 through hole.Then, when indicator 6 is installed and is placed on rubber 4c fully and goes up, push, thereby make the point 5c1 of chucking claw 5c push the upper circumferential edge of inner peripheral surface of the center through hole of indicator 6 by the restoring force of elastomeric element 5b.Like this, indicator 6 is kept by rotary part 1.Therefore, when rotary part 1 rotation, indicator 6 can not come off or tilts owing to centrifugal force or deadweight.
But the dip plane 5c2 of the upper circumferential edge of the inner peripheral surface in the center pit of pushing indicator 6 of chucking claw 5c is formed with 1 bend towards the radial direction outside.And because the power of installation indicator is preferably very little, thereby the point 5c1 of chucking claw 5c is set shortly.For this reason, the curvature of the dip plane 5c2 that pushes indicator 6 of radial direction and chucking claw 5c is necessary to form very for a short time.So, increase with the angle that the face that contacts with indicator 6 forms by dip plane 5c2.Therefore, chucking claw 5c pushes the power of indicator 6, and is big in the radial direction outside, little at the axis direction downside.As a result, when 1 state that keeps takes off indicator 6 from indicator 6 from rotary part, take off indicator 6 needed power (this power is hereinafter referred to as taking out power) from rotary part 1 and descend.And, if taking out power, this descends, when rotate, motor, indicator 6 is come off from rotary part 1 owing to centrifugal force or from the impact of outside etc.
And, when taking out power and when strengthening the elastic force of elastomeric element 5b in order to improve this, for example, at elastomeric element 5b is under the helical spring situation, when increasing spring constant, taking out power self can strengthen, yet chucking claw 5c is installed in needed power on the rotary part 1 (this power is hereinafter referred to as installing force) to indicator 6 and increases towards the difficulty that also becomes that moves of radial direction inboard.Therefore, indicator 6 is installed in the difficulty that becomes on the rotary part 1, operability worsens.
And when strengthening the elastic force of elastomeric element 5b, owing to strengthen towards the power in the radial direction outside, thereby the power of inner peripheral surface of pushing the center through hole of indicator 6 strengthens.Therefore, the center through hole of indicator 6 may be out of shape because of chucking claw 5c, and the center through hole of indicator 6 can be from the aligning rake 5d skew of the aligning of being responsible for indicator 6.As a result, may make the aligning precise decreasing of indicator 6, indicator 6 rotates while vibrating in the radius of turn direction.
Summary of the invention
According to the present invention, can provide a kind of elastomeric element that do not strengthen towards the power in the radial direction outside, only improve and take out the good gripping mechanism of power, reliability and permanance.
In an example of gripping mechanism of the present invention, be made of following: the housing that centers is configured in the inner circumferential side of the through hole of indicator, with the center of through hole and the center aligning of gripping mechanism; The chucking claw of holding the record and coiling; With the elastomeric element of chucking claw towards the radial direction outside application of force; And the indicator placed side of placing indicator.
Chucking claw is made of following: be housed in the base portion in the housing that centers; And point, outstanding from the peripheral part of the housing that centers, indicator is kept.
The point of chucking claw is formed with the 1st dip plane, the upper side abuts of the circumferential edges downside butt point of the through hole of the 1st dip plane by making indicator, the radial direction outside of point is obtained towards the revolving force of the direction of downside, and make the displacing force of aforementioned chucking claw acquisition towards the radial direction inboard.
The point of chucking claw also is formed with the 2nd dip plane, and the downside of the circumferential edges upper side abuts point of the through hole of the 2nd dip plane by making indicator is pushed the circumferential edges upside of the through hole of indicator from the radial direction outside and upside.
The point of chucking claw also is formed with flexure plane, and this flexure plane is positioned at from the base portion side of the 2nd dip plane, and the pitching stable action of chucking claw is carried out.
And, form the ladder concave shape in the boundary portion of the 2nd dip plane and aforementioned flexure plane.
And at the abutting part of indicator and chucking claw, the dihedral that the upper surface of the 2nd dip plane and indicator forms becomes like this, that is, the angle of the imaginary surface that is connected than the outer diameter part with flexure plane and point and the upper surface formation of indicator is little.
And at the abutting part of indicator and chucking claw, the dihedral that the upper surface of the 2nd dip plane and indicator forms becomes like this, that is, the angle of the face that is connected than the outer diameter part with the outer diameter part of flexure plane and point and the upper surface formation of indicator is little.
Be formed with along with towards axial downside and to auxiliary dip plane that aforementioned base portion side tilts in boundary portion.
These dip plane can form curved shape separately.
And the recording disk drive motor that this gripping mechanism is installed is made of following: rotary part, and have to drive and use magnet, when aforementioned gripping mechanism is fixing, carry out coaxial rotation; Parts of bearings supports aforementioned rotary part rotation freely; And fixed part, have armature, the aforementioned bearings parts are fixed.
Description of drawings
Fig. 1 is the sectional view of an example that schematically illustrates the embodiment of recording disk drive motor of the present invention.
Fig. 2 is the vertical view that gripping mechanism of the present invention is shown.
Fig. 3 is the vertical view that the housing that centers of gripping mechanism of the present invention is shown.
Fig. 4 is the sectional view along the X-X line of the housing that centers of Fig. 3.
Fig. 5 a and 5b are the outboard profiles that the chucking claw of gripping mechanism of the present invention is shown.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is the sectional view that schematically illustrates the relation of center housing and chucking claw of the present invention.
Fig. 8 is the sectional view of relation that schematically illustrates the power of gripping mechanism of the present invention and indicator.
Fig. 9 be illustrate in the past gripping mechanism and the mode sectional drawing of the relation of the power of indicator.
Figure 10 is the sectional view that schematically illustrates recording disk drive motor in the past.
Embodiment
With reference to Fig. 1 an embodiment of the recording disk drive motor of use rotating-table apparatus according to the present invention is described.Fig. 1 cuts the figure that sees from the direction of arrow open along the O-O line of Fig. 2.
＜motor one-piece construction 〉
Motor is made of following: rotary part; Rotary part is rotated the parts of bearings that supports freely; And the fixed part that keeps parts of bearings.
Fixed part also is made of installing plate 10, lining 20, inaccessible plate 30 and armature 40.
On installing plate 10, be formed with circular port 11, the base portion 21 of lining 20 roughly cylindraceous is installed in this circular port 11.In the installation of the base portion 21 of this circular port 11 and lining 20, for example carry out plastic yield by joint filling portion 22 in the radius of turn direction outside and be secured on the installing plate 10 by extruding with the lower end of lining 20.Inaccessible plate 30 with the bottom obturation of lining 20 is installed in the bottom of lining 20.In the installation of lining 20 and inaccessible plate 30, the joint filling portion 22 of the lower end by will being formed on lining 20 for example carries out plastic yield by extruding in the radial direction inboard and is secured on the lining 20.And, be fixed with at the outer peripheral face of lining 20 laminate core applied insulating coating, make the armature 40 of Wire-wound.
And rotary part is made of with magnet 70 and gripping mechanism 80 axle 50, rotor holder 60, driving.
Be fixed with rotor holder 60 on the top with the axle 50 of rotating shaft coaxle configuration, this rotor holder 60 is that the magnetic material with iron etc. for example forms to bottom tube-like is arranged by extrusion process.Be fixed with at the axial upside of the bottom surface sections 61 of this rotor holder 60 and indicator (Fig. 1 illustrates) kept and the gripping mechanism 80 of rotation.Radial direction inboard in the cylindrical portion 62 of rotor holder 60 is fixed with rotor magnet 70 by bonding.And rotor magnet 70 is opposed by the gap in the radius of turn direction with armature 40.
And,, be fixed on the cylindrical portion inner peripheral surface of lining 20 as the sleeve 90 of parts of bearings for the rotatable support freely of above-mentioned rotary part.This parts of bearings is not limited to sleeve 90, can be the rolling bearing of ball bearing etc.
By giving armature 40 energisings, around armature 40, produce magnetic field.Then, by this magnetic field and the interaction that drives with magnet 70 the rotary part rotation is driven.
The structure of＜gripping mechanism 〉
With reference to Fig. 2 the structure of gripping mechanism 80 is described.Fig. 2 is the figure that sees gripping mechanism 80 from axial upside.
And indicator placed side 82 has the circular padded coaming 82a of elastomeric material etc., is that purpose is provided with the vibrationproof and anti-slip of indicator 100.
＜housing centers 〉
The housing 83 that centers be have can axle 50 is fixing center pit the bottomless drum shape shape arranged, have: bottom surface sections 83a, 83b of outside cylindrical portion and the 83c of inside cylindrical portion (with reference to the axis of rotation directional profile figure of the housing 8 that centers of Fig. 4).And, have indicator core-regulating mechanism 83d in the part of the peripheral part of the housing 83 that centers.Indicator core-regulating mechanism 83d is the mechanism of the rotation center aligning of the center of the indicator 100 that will be placed and gripping mechanism 80.
The external diameter of housing 83 of centering is designed to slightly littler than path in the margin tolerance of the external diameter of the center through hole 101 of indicator 100.Like this, as long as the center through hole 101 of indicator 100 is that the housing 83 that centers just can be installed in the center through hole 101 of indicator 100 by the size in the margin tolerance of standard decision.
＜indicator core-regulating mechanism 〉
With reference to Fig. 3 the aligning of indicator is described.Fig. 3 is the figure of the housing 83 that centers seen from axial upside.
Indicator core-regulating mechanism 83d uniformly-spaced is formed with 3 pair hole 83es to cylindrical portion 83b at circumferencial direction from the end 83a1 of the bottom surface sections 83a of the housing 83 that centers.This hole 83e each between be formed with aligning pawl 83f.The upper end of aligning pawl 83f becomes one with the end 83a1 of the housing 83 that centers, and forms towards radial direction lateral downside to tilt to extend.The foot of this aligning pawl 83f is outstanding a little towards the radial direction outside above the external diameter of the housing 83 that centers.
Here, the size relationship to indicator 100 (Fig. 3 illustrates) and indicator core-regulating mechanism 83d describes.The center external diameter of housing 83 is designed to as previously mentioned less than minimal tolerance in the margin tolerance of the center through hole 101 of indicator 100.Yet, be designed to bigger slightly than maximum allowance in the margin tolerance of the center pit 101 of indicator 100 by the formed imaginary radius of a circle of the foot 83f1 of each aligning pawl 83f.Like this, when being installed in indicator 100 on the gripping mechanism 80, the foot 83f1 butt of the inner peripheral surface of the center through hole 101 of indicator 100 and aligning pawl 83f is with the center of indicator 100 and the center aligning of gripping mechanism 80.It is desirable to, this aligning pawl 83f uniformly-spaced is set to be used for the aligning of indicator 100 more than at least 3 at circumferencial direction.
＜indicator maintaining part 〉
With reference to Fig. 2 to Fig. 4 indicator maintaining part 81 is described.Fig. 4 cuts the sectional view of seeing from the direction of arrow open along the X-X line of Fig. 3.
At first with reference to Fig. 3, the hole 83e that are arranged in the housing 83 that centers are made of following: upper hole 83a2 is formed on the bottom surface sections 83a of the housing 83 that centers; And sidepiece hole 83a3,83a2 is continuous with upper hole, is formed in the bottom surface sections 83a and cylindrical portion 83b of the housing 83 that centers.The circumferencial direction length of sidepiece hole 83a3 is longer than the circumferencial direction length of upper hole 83a2.And, in the 83a3 of sidepiece hole, be formed with the jut 86 that extends towards the axial rotary upside with reference to Fig. 4.Jut 86 has the roughly the same radius of turn direction thickness of cylindrical portion 83b with the housing 83 that centers.Jut 86 is formed with guide surface 86a, and this guide surface 86a carries out the pitching stable action of chucking claw 84 along with inclination downwards is oblique towards the radius of turn direction is inboard.
And, in each hole 83e, contain at the such elastomeric element 85 of radius of turn direction for example volute spring free to advance or retreat in the radius of turn direction outside simultaneously with reference to Fig. 2.And a part is from the cylindrical portion 83b of the housing 83 that centers side-prominent outwardly chucking claw 84 and elastomeric element 85 engagements, by the application of force outside radial direction.
The embodiment of＜chucking claw 〉
With reference to Fig. 5 a, 5b and Fig. 6 the embodiment of chucking claw 84 is described.Fig. 5 a and 5b are the outboard profiles of chucking claw 84, and Fig. 6 is the vertical view of chucking claw 84.
Upper surface at chucking claw 84 is formed with tabular surface 84a and downward the 1st oblique dip plane 84b of inclination in the outside (right side Fig. 5) from tabular surface 84a towards radial direction.
Lower surface at chucking claw 84, be formed with towards the radial direction inboard at outer diameter part 84b1 that (left side among Fig. 5) is the 2nd dip plane 84c that bending tilts, this outer diameter part 84b1 is and the point of the face that the 1st dip plane 84b intersects in the outermost of radial direction.And being formed with in the bottom of the 2nd dip plane 84c becomes the 3rd dip plane 84d that is the flexure plane that bending tilts towards the radial direction outside.And the boundary portion that is connected with the 3rd dip plane 84d at connection the 2nd dip plane 84c is formed with auxiliary dip plane 84e.
Be formed with rectangle teat 84f in the side of chucking claw 84, it connects into the radial direction inboard that covers the 2nd dip plane 84c and the 3rd dip plane 84d.Rectangle teat 84f has: side surface part 84f1, and inboard quadrature extends from its circumferential two ends towards radial direction; And teat 84f2, side-prominent in from rectangle teat 84f towards radial direction.
The boundary portion that is generated at a part and auxiliary dip plane 84e by the 2nd dip plane 84c and the 3rd dip plane 84d is formed with ladder concavity 87.By being formed with this ladder concavity 87, can make the 2nd dip plane 84c obtain the angle that tilts more towards radial direction.As a result, can improve the power that takes out of indicator 100.
Be imaginary surface with the 3rd dip plane 84d with the curved surface that outer diameter part 84b1 is connected particularly for what represent by dotted line shown in Fig. 5 a, at indicator abutting part a1, the angle φ 1 that forms with the upper surface (single-point line) and the imaginary surface of indicator compares, and the angle φ 2 that the upper surface of the 2nd dip plane 84c and indicator forms forms lessly.
And, the angle φ 3 that the face that is connected with the outer diameter part 84b1 with the outer diameter part 84d1 of the 3rd dip plane 84d and point that is represented by dotted line shown in Fig. 5 b forms compares, and the angle φ 2 of the upper surface formation of the 2nd dip plane 84c and indicator is connected to form lessly.
The circumferential width of par 84a and the 1st dip plane 84b is narrower than the 2nd dip plane 84c.And par 84a is consistent with the circumferential central shaft of the 2nd dip plane 84c with the 1st dip plane 84b.Therefore, par 84a and the 1st dip plane 84b form from par 84a and the 1st dip plane 84b upper surface 84a1 (with reference to Fig. 6) in addition outstanding.And, has the slightly little degree of comparing with the circumferential width of the upper hole 83a2 of the housing 83 that centers in par 84a and the formed circumferential width of the 1st dip plane 84b, and the axial rotary thickness of par 84a is almost consistent with the axial rotary thickness of the bottom surface sections 83b of the housing 83 that centers.
Below, the maintenance function of the chucking claw 84 when being accommodated in the housing 83 that centers with reference to Fig. 7 to chucking claw 84 describes.
In Fig. 7, the part of chucking claw 84 is configured to be accommodated in the inside of hole 83e, and by the elastomeric element 85 of volute spring etc. towards the radial direction application of force.One end of elastomeric element 85 is fixed on the base portion 83c of the housing 83 that centers, and the other end is fixed on the teat 84f2 of chucking claw 84.Therefore, chucking claw 84 can be from the state of Fig. 7 towards radius of turn direction medial movement.On the other hand, by making side surface part 84f1 and the inner peripheral surface butt of the cylindrical portion 83b of the housing 83 that centers, restriction chucking claw 84 side shifting outside the radius of turn direction.
Chucking claw 84 towards the radial direction outside by the state of the application of force under, make the 1st dip plane 84b and the 2nd dip plane 84c from hole 83e towards radial direction the outside outstanding.Like this, when indicator 100 is placed on the gripping mechanism 83, can limit moving axially of indicator 100.
Chucking claw 84 carries out mobile towards the radius of turn direction in the state of the upper hole 83a2 that keeps the par 84a of chucking claw 84 and the 1st dip plane 84b are configured in the housing 83 that centers.And when chucking claw 84 moved, upper surface 84a1 moved with the axial downside 83a4 sliding contact of the bottom surface sections 83a of the hole 83e of face on every side as upper hole 15a.
The action of＜gripping mechanism 〉
With reference to Fig. 1,, particularly the action of dish core-regulating mechanism 83d and the action of dish maintaining part 81 are described the action of gripping mechanism 80.
When indicator 100 was placed on the gripping mechanism 80, the housing 83 that centers entered in the center through hole 101 of indicator 100 relatively.
Center the relatively cylindrical portion 83b of housing 83 of the radial direction outboard end of the tabular surface 84a of chucking claw 84 is positioned at the radial direction inboard.Like this, when indicator 100 is placed, the bottom inner circumferential edge of the center through hole 101 of indicator 100 and the 1st dip plane 84b butt.And when the bottom inner circumferential edge of the center of indicator 100 through hole 101 was pushed the 1st dip plane 84b of chucking claw 84, chucking claw 84 was towards radius of turn direction medial movement.Like this, indicator 100 is pressed in the 1st dip plane 84b sliding contact of the bottom inner circumferential edge of the center through hole 101 that makes indicator 100 and chucking claw 84.
When the center of indicator 100 through hole 101 is pressed along the 1st dip plane 84b, when the center through hole 101 of indicator 100 is crossed the pawl top of the chucking claw 84 that the 1st dip plane 84b and the 2nd dip plane 84c intersect, chucking claw 84 is in the inner circumferential edge sliding contact of the top of the center through hole 101 that makes the 2nd dip plane 84c and indicator 100, towards radius of turn direction medial movement.Like this, indicator 100 is the top inner circumferential edge of heart through hole 101 therein, accepts the support from chucking claw 84 towards axial downside.Meanwhile, indicator 100 support of the acceptance of face on every side from indicator placed side 82 towards axial upside of heart through hole 101 therein.
By more than, indicator 100 is kept by gripping mechanism 80.And,, as described below, also carry out the aligning of indicator 100 in the 100 maintained whiles of indicator.
When indicator 100 is crossed the pawl top of chucking claw 84 and is pressed, the axial location that radius outside the radial direction of aligning pawl 83e equates with the radius of the center through hole 101 of indicator 100, the bottom inner circumferential edge of the center through hole 101 of indicator 100 contacts with aligning pawl 83e.The radius in the radial direction of 3 the aligning pawl 83e outside forms at axial location arbitrarily and equates separately.Therefore, 3 aligning pawl 83e support the center through hole 101 of indicator 100 separately in radial direction outside equalization, can realize the aligning of indicator 100 and gripping mechanism 80.
The power that takes out of＜indicator 〉
With reference to Fig. 8 and Fig. 9, the power that takes out when taking off indicator 100 describes with example contrast in the past.Fig. 8 is the axial section of gripping mechanism 80 according to an embodiment of the invention, and the relation of the power of chucking claw 84 and indicator 100 is shown.Fig. 9 is the axial section according to routine in the past gripping mechanism 5, and the relation of the power of chucking claw 5c and indicator 6 is shown.And, the single-point line expression turning axle of Fig. 8 and Fig. 9.
In Fig. 8, impose on the power of indicator 100 towards axial upside in order to take off indicator 100, promptly take out power, the power that the 2nd dip plane 84c just chucking claw 84 and indicator 100 butts accept is set at T1.In routine in the past Fig. 9, be set at T2 too.
In order to take off indicator 100, can apply certain certain power, make elastomeric element 85 be retracted to the position that comes off at the inboard indicator 100 of radial direction.This certain certain power is depicted as TR at Fig. 8 and Fig. 9.And according to the angle that the 2nd dip plane 84c when center through hole 101 butts of chucking claw 84 and indicator 100 and indicator form, the power that imposes on chucking claw 84 also changes.In the example in the past of Fig. 9, (equate) greatly because the angle φ 4 that the dip plane 5c2 when the center pit 6a of indicator 6 and chucking claw 5c butt and the upper surface of indicator form with the imaginary surface and the angle φ 1 that forms of the upper surface of indicator of Fig. 5 in a), thus little when having applied at the axial power TA2 of radial direction during to the power TR of the position that indicator 6 comes off.As a result, certain certain power TR of the radius of turn direction that comes off of indicator 6 and axial power TA2's promptly takes out power T2 with joint efforts and reduces.Yet, in the embodiments of the invention of Fig. 8, because the angle φ 2 that the 2nd dip plane 84c when the center of indicator 100 through hole 101 and chucking claw 84 butts and the upper surface of indicator 6 form is little, thereby when having applied at radial direction during to the power TR of the position that indicator 100 comes off, axial power TA1 increases.Therefore, certain certain TR of the radius of turn direction that comes off of indicator 100 and axial power TA1 promptly to take out power T1 with joint efforts big.Because it is the 3rd dip plane 84d that this embodiment has with identical in the past flexure plane, like this, setting up and unloading according to indicator 100, can steadily guide the pitching action of chucking claw 84, afterwards, by forming ladder recess 87, the 2nd dip plane 84c is had towards the angle of radial direction inclination.As a result, as previously mentioned, the angle φ 2 that chucking claw 84 of the present invention can make the upper surface of the 2nd dip plane 84c when indicator 100 and chucking claw 84 butts and indicator form reduces, and can make to take out power T1 and increase.Therefore, increase, thereby can provide and can not make indicator 100 owing to centrifugal force or from the impact of motor outside etc. comes off, reliability is high gripping mechanism with use the disc driving motor of this gripping mechanism owing to take out power T1.
More than, gripping mechanism according to the present invention and the recording disk drive motor that uses this gripping mechanism are described, yet the invention is not restricted to this embodiment, can carry out various distortion and even correction without departing from the present invention.
Claims (13)
1. gripping mechanism, the aforementioned through hole of indicator that will have through hole at the center is from the coaxial maintenance of inner circumferential side and be rotated,
This gripping mechanism comprises:
The housing that centers is positioned at week of the aforementioned through hole of aforementioned indicator, with aforementioned through hole arranged coaxial;
Be placed with the indicator placed side of aforementioned indicator;
Be configured in a plurality of chucking claws of circumferencial direction with respect to the aforementioned housing that centers; And,
Elastomeric element is configured in the radial direction inboard of aforementioned each chucking claw, with aforementioned chucking claw towards the radial direction outside application of force,
Wherein, aforementioned chucking claw comprises:
Base portion is housed in the aforementioned housing that centers, and accepts the application of force from aforementioned elastomeric element; And,
Point, outstanding from the peripheral part of the aforementioned housing that centers towards the radial direction outside, and keep aforementioned indicator,
Wherein, aforesaid tip portion comprises:
The 1st dip plane, the circumferential edges downside of the aforementioned through hole by making aforementioned indicator is from the upper side abuts of aforementioned point, the radial direction outside of aforesaid tip portion is obtained towards the revolving force of the direction of downside, and make the displacing force of aforementioned chucking claw acquisition towards the radial direction inboard;
The 2nd dip plane, the circumferential edges upside of the aforementioned through hole by making aforementioned indicator be from the downside butt of aforementioned point, and the circumferential edges upside of the aforementioned through hole of aforementioned indicator is pushed from the radial direction outside and upside;
Flexure plane, aforementioned relatively the 2nd dip plane is positioned at aforementioned base portion side, and the pitching stable action of aforementioned chucking claw is carried out; And,
Be aforementioned the 2nd dip plane of ladder recess shapes formation and the boundary portion of aforementioned flexure plane,
The dihedral that aforementioned the 2nd dip plane in the aforementioned indicator abutment portion and the upper surface of aforementioned indicator form becomes like this, that is, the angle of the imaginary surface that is connected than the outer diameter part with aforementioned flexure plane and aforesaid tip portion and the upper surface formation of aforementioned indicator is little.
2. gripping mechanism according to claim 1 is characterized in that,
Be formed with along with towards axial downside and to auxiliary dip plane that aforementioned base portion side tilts in aforementioned boundary portion.
3. gripping mechanism according to claim 1 is characterized in that,
Part or all of aforementioned dip plane forms the curved incline face.
4. gripping mechanism according to claim 2 is characterized in that,
Part or all of aforementioned dip plane forms the curved incline face.
5. gripping mechanism according to claim 1 is characterized in that,
Peripheral part at the aforementioned housing that centers has:
The hole, corresponding with aforementioned each chucking claw, be used to make the aforesaid tip portion of aforementioned each chucking claw outstanding towards the radial direction outside from the peripheral part of aforementioned centering cone body; And,
Guide portion forms the part of the circumferential edges of aforementioned apertures, and the pitching stable action of the aforesaid tip portion of aforementioned chucking claw is carried out.
6. gripping mechanism according to claim 1 is characterized in that,
Motor is made of following:
Rotary part, it has to drive uses magnet, carries out coaxial rotation when aforementioned gripping mechanism is fixing;
Parts of bearings, it supports aforementioned rotary part rotation freely; And,
Fixed part, it has armature, and the aforementioned bearings parts are fixed.
7. gripping mechanism according to claim 2 is characterized in that,
Motor is made of following:
Rotary part, it has to drive uses magnet, carries out coaxial rotation when aforementioned gripping mechanism is fixing;
Parts of bearings, it supports aforementioned rotary part rotation freely; And,
Fixed part, it has armature, and the aforementioned bearings parts are fixed.
8. gripping mechanism according to claim 3 is characterized in that,
Motor is made of following:
Rotary part, it has to drive uses magnet, carries out coaxial rotation when aforementioned gripping mechanism is fixing;
Parts of bearings, it supports aforementioned rotary part rotation freely; And,
Fixed part, it has armature, and the aforementioned bearings parts are fixed.
9. gripping mechanism according to claim 4 is characterized in that,
Motor is made of following:
Rotary part, it has to drive uses magnet, carries out coaxial rotation when aforementioned gripping mechanism is fixing;
Parts of bearings, it supports aforementioned rotary part rotation freely; And,
Fixed part, it has armature, and the aforementioned bearings parts are fixed.
10. gripping mechanism, the aforementioned through hole of indicator that will have through hole at the center is from the coaxial maintenance of inner circumferential side and be rotated,
This gripping mechanism comprises:
The housing that centers is positioned at week of the aforementioned through hole of aforementioned indicator, with aforementioned through hole arranged coaxial;
Be placed with the indicator placed side of aforementioned indicator;
Be configured in a plurality of chucking claws of circumferencial direction with respect to the aforementioned housing that centers; And,
Elastomeric element is configured in the radial direction inboard of aforementioned each chucking claw, with aforementioned chucking claw towards the radial direction outside application of force,
Wherein, aforementioned chucking claw comprises:
Base portion is housed in the aforementioned housing that centers, and accepts the application of force from aforementioned elastomeric element; And,
Point, outstanding from the peripheral part of the aforementioned housing that centers towards the radial direction outside, and keep aforementioned indicator,
Wherein, aforesaid tip portion comprises:
The 1st dip plane, the circumferential edges downside of the aforementioned through hole by making aforementioned indicator is from the upper side abuts of aforementioned point, the radial direction outside of aforesaid tip portion is obtained towards the revolving force of the direction of downside, and make the displacing force of aforementioned chucking claw acquisition towards the radial direction inboard;
The 2nd dip plane, the circumferential edges upside of the aforementioned through hole by making aforementioned indicator be from the downside butt of aforementioned point, and the circumferential edges upside of the aforementioned through hole of aforementioned indicator is pushed from the radial direction outside and upside;
Flexure plane, aforementioned relatively the 2nd dip plane is positioned at aforementioned base portion side, and the pitching stable action of aforementioned chucking claw is carried out; And,
Be aforementioned the 2nd dip plane of ladder recess shapes formation and the boundary portion of aforementioned flexure plane,
The dihedral that aforementioned the 2nd dip plane in the aforementioned indicator abutment portion and the upper surface of aforementioned indicator form becomes like this, that is, the angle that forms of the upper surface of face that is connected than the outer diameter part with the outer diameter part of aforementioned flexure plane and aforesaid tip portion and aforementioned indicator is little.
11. gripping mechanism according to claim 10 is characterized in that,
Be formed with along with towards axial downside and to auxiliary dip plane that aforementioned base portion side tilts in aforementioned boundary portion.
12. gripping mechanism according to claim 10 is characterized in that,
Part or all of aforementioned dip plane forms the curved incline face.
13. gripping mechanism according to claim 10 is characterized in that,
Peripheral part at the aforementioned housing that centers has:
The hole, corresponding with aforementioned each chucking claw, be used to make the aforesaid tip portion of aforementioned each chucking claw outstanding towards the radial direction outside from the peripheral part of aforementioned centering cone body; And,
Guide portion forms the part of the circumferential edges of aforementioned apertures, and the pitching stable action of the aforesaid tip portion of aforementioned chucking claw is carried out.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004305042 | 2004-10-20 | ||
| JP2004305042 | 2004-10-20 | ||
| JP2005303750 | 2005-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1770291A true CN1770291A (en) | 2006-05-10 |
| CN100570724C CN100570724C (en) | 2009-12-16 |
Family
ID=36751514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510109470 Expired - Fee Related CN100570724C (en) | 2004-10-20 | 2005-10-20 | Gripping mechanism and the recording disk drive motor that this gripping mechanism is installed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100570724C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237105A (en) * | 2010-04-23 | 2011-11-09 | 三星电机株式会社 | Disk chucking apparatus, motor and disk driving device equipped with motor |
| CN101340118B (en) * | 2007-05-09 | 2011-11-09 | 日本电产株式会社 | Motor and method for manufacturing the motor |
| CN101431283B (en) * | 2007-10-16 | 2011-11-30 | 日本电产株式会社 | Motor provided with chucking device and disk driving device equipped with the motor |
| CN102460911A (en) * | 2009-04-06 | 2012-05-16 | Lg伊诺特有限公司 | Apparatus for clamping disk and spindle motor having the same |
| CN101789247B (en) * | 2009-01-26 | 2012-06-13 | 日本电产株式会社 | Fastening device, brushless machine and disk driving device |
-
2005
- 2005-10-20 CN CN 200510109470 patent/CN100570724C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101340118B (en) * | 2007-05-09 | 2011-11-09 | 日本电产株式会社 | Motor and method for manufacturing the motor |
| CN101431283B (en) * | 2007-10-16 | 2011-11-30 | 日本电产株式会社 | Motor provided with chucking device and disk driving device equipped with the motor |
| CN101789247B (en) * | 2009-01-26 | 2012-06-13 | 日本电产株式会社 | Fastening device, brushless machine and disk driving device |
| CN102460911A (en) * | 2009-04-06 | 2012-05-16 | Lg伊诺特有限公司 | Apparatus for clamping disk and spindle motor having the same |
| CN102460911B (en) * | 2009-04-06 | 2014-10-15 | Lg伊诺特有限公司 | Apparatus for clamping disk and spindle motor having the same |
| CN102237105A (en) * | 2010-04-23 | 2011-11-09 | 三星电机株式会社 | Disk chucking apparatus, motor and disk driving device equipped with motor |
| CN102237105B (en) * | 2010-04-23 | 2015-06-24 | 三星电机株式会社 | Disk chucking apparatus, motor and disk driving device equipped with motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100570724C (en) | 2009-12-16 |
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20091216 Termination date: 20201020 |