CN101510432B

CN101510432B - Disc device

Info

Publication number: CN101510432B
Application number: CN2009100027130A
Authority: CN
Inventors: 加藤市郎
Original assignee: Alpine Electronics Inc
Current assignee: Alpine Electronics Inc
Priority date: 2008-02-14
Filing date: 2009-01-19
Publication date: 2012-07-04
Anticipated expiration: 2029-01-19
Also published as: JP5279287B2; CN101510432A; JP2009193630A

Abstract

The invention aims to provide a 'disc apparatus' capable of holding the disc by a clamp element reliably arranged on a rotary driving portion and forming the rotary driving portion a thin type one. A plurality of clamp elements (31) is arranged in a rotary table (10) of the rotary driving portion (1). A driving rotary body (40) that rotates coaxially with the rotary table is arranged and is provided with a switching cam. The clamp elements (31) in the rotary table are switched to a clamp gesture to hold the disc (D) and a non clamp gesture to turn back in the rotary table. Protruding height size H1 of the clamp element from a flange section (11) is greater than height size H0 of a bump (15) in the clamp gesture, which may clamp the disc (D) reliably. Protruding height size of the clamp element from a flange section is smaller than height size H1 in the non clamp gesture. Therefore, the rotary driving portion can be made to thin type one.

Description

The dish device

Technical field

The present invention relates to a kind of on the rotary driving part of the center pit that is provided with dish, be provided with the dish device of a plurality of hold assemblies that keep above-mentioned center pit.

Background technology

Below patent documentation 1 and patent documentation 2 described dish devices, the what is called of center pit that on rotary driving part, is provided with holding tray is from clamping device.

Universal stage is set on rotary driving part, the protuberance of inside of the center pit of insertion dish is set at the central portion of universal stage.In clamping device,, on bolster, rotate respectively and support hold assembly freely at the set inside of the raised part bolster that extends downwards of bottom from it.

On rotary driving part, be provided with and the coaxial driven in rotation body that is rotated of universal stage, setting makes the cam part that the rotation posture of each hold assembly changes on this driven in rotation body.

When external force does not work to the driven in rotation body; Each hold assembly is rotated by the power of spring; The maintenance pawl that forms at the top of hold assembly is more outstanding than the outer peripheral face of raised part, can be between the support that keeps pawl and universal stage holding tray.On the maintenance pawl of hold assembly; Setting is towards the rake in the outside, when keeping pawl to be crimped on the inner peripheral of center pit of dish, works from the component of above-mentioned rake to the support of the center pit extruding universal stage of dish; Utilize this component, dish is held on universal stage.

If make the driven in rotation body carry out relative rotation with respect to universal stage, then through cam part, making hold assembly is that the direction that fulcrum is retreated to the inboard of raised part is rotated with the bolster, utilizes the dish of hold assembly to keep being disengaged.

" patent documentation 1 " TOHKEMY 2002-367260 communique

" patent documentation 2 " TOHKEMY 2006-294176 communique

Above-mentioned patent documentation 1 and patent documentation 2 said dish devices from clamping device if above-mentioned maintenance pawl is outstanding with enough height dimensions on universal stage, then keep pawl to move to the top of dish, and holding tray reliably from the center pit of dish.Particularly, when dish or the excessive dish of gauge of distortion are admitted in the device, when perhaps the protuberance of universal stage is fully in the center pit of entering dish, the generation phenomenon of holding tray reliably easily.If universal stage is rotated under the state of holding tray reliably failing, then easily the generation dish be not rotated, or the not good situation that comes off etc. from universal stage of dish.

On the other hand; Though as long as use the abundant big hold assembly of projecting height size that begins from universal stage; Just avoid above-mentioned not good situation easily, but in this case, also need correspondingly increase the height dimension of the protuberance of the universal stage of taking in hold assembly with the height dimension of hold assembly.Its result does, the universal stage thickening is had to extend during the clamping of releasing dish and extracted the decline amount of movement of the needed universal stage of raised part from the center pit of dish.Thereby, need guarantee the mobile space of universal stage more roomy in the inside of dish device, be difficult to the slimming of realization dish device.

In addition; As patent documentation 2 described that kind, in casing, take in the dish device of dish selecting type of many dishes, between dish of selecting and the dish below it, form the space; Rotary driving part moves in this space, and the center pit of selecteed dish is held on rotary driving part.In this case, if the gauge of universal stage increases, then also need enlarge the interval between selecteed dish and the dish below it redundantly, the space of interior broadens greatly, is difficult to the slimming of realization dish device.

Summary of the invention

The present invention is with solving above-mentioned problem in the past, and its purpose is for providing a kind of dish device, and not unnecessary increase can utilize the hold assembly circumference of the center pit of holding tray reliably along the gauge of the direction of the turning axle of rotary driving part.

The present invention is a kind of dish device; Possesses rotary driving part; This rotary driving part has universal stage, driver part and a plurality of hold assembly, and this universal stage has the support of the face of carrier, by the power rotation driving of motor; This driver part relatively moves to above-mentioned universal stage, these a plurality of hold assemblies can from and above-mentioned support between the clamping posture of holding tray move to the non-clamping posture of retreating to the inboard of the center pit of above-mentioned dish; Come the center pit of holding tray and be rotated driving by this rotary driving part, it is characterized by,

Between above-mentioned universal stage and above-mentioned driver part, switching mechanism is set; This switching mechanism relatively moves through above-mentioned universal stage and above-mentioned driver part; Make above-mentioned hold assembly move to above-mentioned non-clamping posture from above-mentioned clamping posture, low during than above-mentioned clamping posture when above-mentioned switching mechanism is set at above-mentioned non-clamping posture with the height dimension of the above-mentioned support of above-mentioned hold assembly distance.

Dish device of the present invention is because the height dimension of the hold assembly of clamping posture uprises, so be easy to utilize hold assembly that dish is remained on the support of universal stage.On the other hand, under non-clamping posture, because the height dimension step-down of hold assembly, so can under the non-clamp position of dish, make the rotary driving part integral thinned.

The present invention constitutes: on above-mentioned universal stage, protuberance is set, this protuberance is inserted into the center pit of above-mentioned dish, and above-mentioned hold assembly is incorporated in the inside of raised part when above-mentioned non-clamping posture.

Hold assembly because when non-clamping posture the height dimension step-down, also can step-down so take in the protuberance of the hold assembly of non-clamping posture.Therefore, can make the universal stage attenuation.

The present invention preferably, above-mentioned hold assembly from above-mentioned clamping posture when above-mentioned non-clamping posture moves, above-mentioned hold assembly moves to the direction of height dimension step-down after the medial movement of the center pit of above-mentioned dish is accomplished.

Through this action because when hold assembly from the clamping posture when non-clamping posture moves, hold assembly is after the medial movement of the center pit of dish is accomplished, its height dimension step-down is so can remove hold assembly from the center pit of dish reliably.On the contrary, when from non-clamping posture when the clamping posture moves, because hold assembly height dimension during the inboard of the center pit that is positioned at dish uprises, so there is not hold assembly to be hooked in the situation of circumference of the center pit of dish, holding tray reliably.

Also have; At hold assembly from the shift motion that above-mentioned clamping posture begins when above-mentioned non-clamping posture moves most; Also can move by following action; This action is: hold assembly moves in the center pit of dish from the clamping posture, in the moment that does not retreat into fully in the center pit, Yi Bian Yi Bian hold assembly is further retreated decline in the center pit of dish.

The present invention is for example on above-mentioned universal stage and above-mentioned driver part some; Rotate freely and move and support above-mentioned hold assembly freely to short transverse; The switching cam is set on another, and this switching cam makes above-mentioned hold assembly move to above-mentioned non-clamping posture from above-mentioned clamping posture.

In addition; The present invention can constitute has the 1st switching cam and the 2nd switching cam; The 1st switches cam makes above-mentioned hold assembly from the medial movement of above-mentioned clamping posture towards the center pit of above-mentioned dish, and the 2nd switches cam makes above-mentioned hold assembly move to the direction of height dimension step-down.

Also have; The present invention also can be on above-mentioned universal stage and above-mentioned driver part some; Move freely and to short transverse along linear slide and to support above-mentioned hold assembly freely; The switching cam is set on another, make above-mentioned hold assembly from above-mentioned clamping posture to above-mentioned non-clamping posture along linear slide.

In addition, also can constitute the above-mentioned the 1st and switch cam and the 2nd switching cam,, make the medial movement of hold assembly to the center pit of dish through this 1 switching cam by 1 switching cam, and the mobile height dimension step-down that makes.

In addition, the present invention preferably is provided with the spring members of above-mentioned hold assembly to the above-mentioned clamping posture application of force.In this case, also can utilize above-mentioned spring members, to above-mentioned hold assembly to the further application of force of the direction of height dimension step-down.

Also have, the present invention also can not be provided with above-mentioned spring members, and the guiding action through above-mentioned switching cam makes hold assembly to the center pit medial movement of coiling, and moves and make the height dimension step-down.But, if use above-mentioned spring members, then can utilize shared spring, hold assembly is applied rotary action power and decline acting force, can constitute the dish device that carries out action message with the parts number of packages of minimum.

The present invention can be provided with bolster on above-mentioned universal stage; Above-mentioned hold assembly is rotated freely and axially is bearing on the above-mentioned bolster sliding freely; Above-mentioned spring members is inserted logical by above-mentioned bolster, be arranged between above-mentioned universal stage and the above-mentioned hold assembly.

In this case, preferably, on above-mentioned universal stage, be provided with restrictions, this restrictions when above-mentioned clamping posture is rotated, prevents relatively that with above-mentioned hold assembly above-mentioned hold assembly from deviating from from above-mentioned bolster at above-mentioned hold assembly.

Adopt said structure, when the assembling rotary driving part, on the bolster of universal stage, install after whole spring members and the whole hold assembly, each hold assembly does not come off from universal stage.

Also having, in the present invention, can be following structure also: driver part is set it can be rotated with universal stage is coaxial, on bolster set on the driver part, rotate and support hold assembly freely, in the universal stage side switching cam is set.

Dish device of the present invention is because the height dimension of a plurality of hold assemblies is high during than non-clamping posture when the clamping posture; So be easy to utilize hold assembly; The central part of holding tray; Even if the dish or the very large dish of gauge of distortion, perhaps when dish fully is not set on the support of universal stage, also can improve can holding tray probability.

And, because when hold assembly is non-clamping posture, can reduce the gauge of rotary driving part, so in the dish device, can shorten making rotary driving part move needed distance to the direction of leaving dish.In addition, under the situation of the dish selecting type dish device of depositing many dishes,, also can in above-mentioned interval, rotary driving part be moved, dish is set on universal stage even if extremely do not enlarge the interval between selecteed dish and the adjacent with it dish.

Thereby, can remove useless motion space in the dish device, be easy to make the slimming of dish device.

Description of drawings

Fig. 1 is a front elevation of representing the clamp position of rotary driving part set in the dish device of embodiment of the present invention.

Fig. 2 is a front elevation of representing the clamping disarm state of rotary driving part set in the dish device of embodiment of the present invention.

Fig. 3 is the exploded perspective view of rotary driving part.

Fig. 4 is the oblique view of the rotary driving part of expression clamp position.

Fig. 5 is the oblique view of the rotary driving part of expression clamping disarm state.

Fig. 6 is the part front elevation of turned position of the hold assembly of expression clamp position.

Fig. 7 is the part front elevation of turned position of the hold assembly of expression clamping disarm state.

Fig. 8 (A) is the amplification front elevation that the variation of cam is switched in expression the 2nd (B).

Symbol description

1 rotary driving part

2 unit base

3 spindle drive motors

4 turning axles

10 turntables

11 flange parts

12 supports

14 axial regions

15 protuberances

16,17 tapered portion

18 location cylindrical portion

19 bolsters

20 mechanism's accommodation spaces

21 peristomes

22 grasp opening portions

23 non-grasp opening portions

30 from the clamping switching mechanism

31 hold assemblies

33 keep pawl

The 33a rake

35 sliding axles

36 torsion springs

40 driven in rotation bodies

43 the 1st switch cam

44 the 2nd switch cam

50 set collars

Embodiment

Fig. 1 and Fig. 2 are the front elevations of representing rotary driving part set in the dish device of embodiment of the present invention, and Fig. 1 representes clamp position, and Fig. 2 representes the clamping disarm state.Fig. 3 is the exploded perspective view of rotary driving part.Fig. 4 and Fig. 5 are the oblique views that shows rotary driving part by action schedule, and Fig. 4 representes clamp position, and Fig. 5 representes the clamping disarm state.Fig. 6 and Fig. 7 are the front elevations that shows the part of rotary driving part structure member by action schedule, and Fig. 6 representes clamp position, and Fig. 7 representes the clamping disarm state.

Its a part of dish device of expression is provided with rotary driving part 1 in the inside of casing in Fig. 1 and Fig. 2.Rotary driving part 1 is loaded on the unit base 2 of driver element.As shown in Figure 2, when rotary driving part 1 was in the clamping disarm state, the dish D such as CD (Zip disk) or DVD (digital versatile disc) that are inserted into interior were through not shown transfer roller, and (Z2 direction) sent into to the X2 direction above rotary driving part 1.

As shown in Figure 2, if the center pit Da of dish D move to rotary driving part 1 directly over, the transmission of then coiling D is accomplished.Subsequently, rotary driving part 1 rises to the Z2 direction, in the center pit Da of rotary driving part 1 entering dish D.Then, as shown in Figure 1, rotary driving part 1 becomes clamp position, and the center pit Da of dish D is held on the rotary driving part 1.

In addition, the occasion of dish selecting type dish device, many dish D deposit to its thickness direction is overlapping in casing.If select a certain dish D, then selecteed dish D moves to position shown in Figure 2, and this dish D and its descend the interval between the adjacent dish D to be enlarged.Subsequently, as shown in Figure 2, move to the selecteed downside that coils the center pit Da of D away from the locational unit base 2 of dish D outer peripheral edges before.Then, rotary driving part 1 rises to the Z2 direction, in the center pit Da of entering dish D, becomes clamp position shown in Figure 1.

As depicted in figs. 1 and 2, be fixed with spindle drive motor 3 in the bottom of unit base 2, the turning axle 4 of spindle drive motor 3 extends to the top of unit base 2.

As shown in Figure 3, be fixed with universal stage 10 in the upper end of turning axle 4.Universal stage 10 adopts the synthetic resin material to be formed by integral body, and is more formed by whole to the protuberance 15 of Z2 direction protuberance than flange part 11 along the discoideus flange part 11 of periphery extension with at central portion.The inside of protuberance 15 is cavitys, becomes mechanism's accommodation space 20.In mechanism's accommodation space 20, form from the upper bottom portion of protuberance 15 (Z1 direction) vertically extending axial region 14 downwards in the central whole of universal stage 10.On axial region 14, form run through up and down be pressed into hole 14a, and as depicted in figs. 1 and 2, turning axle 4 is pressed into and is fixed on and is pressed in the 14a of hole.Its result is that universal stage 10 utilizes the power and the rotation of turning axle 4 one of spindle drive motor 3.In Fig. 3, express the center line that is pressed into hole 14a with O-O, just as the center line of the rotation center of rotary driving part 1.

At the upper surface of flange part 11, formed the support (supporting table) 12 of the lower surface that is provided with dish D.At the lower surface of flange part 11, form a plurality of fastening grooves 13.Each fastening groove 13 extends by normal direction from center line O-O, forms by certain angular interval towards circumferencial direction.

On the outer peripheral face of protuberance 15, form the upper taper face 16 that increases gradually along with (Z1 direction) its diameter and at its continuous lower taper face 17 down, and then under lower taper face 17, form location cylindraceous side face 18 continuously towards the below.The diameter dimension of location side face 18 is slightly littler than the center pit Da internal diameter size of dish D.

If rotary driving part 1 rises to the Z2 direction from the state of Fig. 2, the circumference of center pit Da that then coils D is by

upper taper face

16 and 17 guiding of lower taper face, centers this moment so that to coil the center of D consistent with the center line O-O of rotary driving part 1.Then, as shown in Figure 1, side face 18 is chimeric when coiling the center pit Da of D in the location, and dish D positions to the face direction rotary driving part 1.

As shown in Figure 3, in mechanism's accommodation space 20, take in structure member from clamping switching mechanism 30.

In mechanism's accommodation space 20, whole 3 bolsters 19 that extend downwards from the upper bottom portion of protuberance 15 that form.3 bolsters 19 are vacated 120 degree on the concentric circular tracks around the center line O-O angle disposes.The axle core and the center line O-O of each bolster 19 extend in parallel.

On the protuberance 15 of universal stage 10, the peristome 21 that formation is communicated with the space outerpace of the upside of mechanism's accommodation space 20 and flange part 11 on 3 positions.21 couples of center line O-O of the peristome at 3 positions form by the arrangement angles of 120 degree.As shown in Figure 3, each peristome 21, its clockwise side is that the α side is a grasp opening portion 22, counterclockwise side is that the β side is a non-grasp opening portion 23.

In non-grasp opening portion 23, rising wood 23a extends to the upper surface of protuberance 15.In grasp opening portion 22, rising wood 22a is positioned on the upper taper face 16.That is to say, grasp opening portion 22 its A/F narrow dimension up and down, the open area is from locating the scope of side face 18 to upper taper face 16.In addition, in grasp opening portion 22, on its lower edge, form restrictions 22b.The upper surface that restrictions 22b forms than flange part 11 only swells to the Z2 direction a little.

As shown in Figure 3, in clamping switching mechanism 30,3 hold assemblies 31 are set.3 hold assemblies 31 are synthetic resin systems.Hold assembly 31 runs through formation support holes 32 at base portion, and support holes 32 is supported axle 19 rotations and inserts sliding freely freely and by above-below direction (Z1-Z2 direction).Whole formation keeps pawl 33 at the top of hold assembly 31, at the rake 33a that keeps forming on the pawl 33 towards the direction opposite with support holes 32.Rake 33a be along with away from support holes 32 towards the top dip plane of (Z2 direction).

On hold assembly 31, end protuberance 34 at the whole card that forms of upside.In addition, on the centre position between support holes 32 and the rake 33a, the whole sliding axle 35 that extends downwards that forms.

Between the upper bottom portion of the protuberance 15 of each hold assembly 31 and universal stage 10, accompany torsion spring 36 is installed.Supporting arm 36b and application of force arm 36c that torsion spring 36 has the 36a of collapse coil portion, extends from the 36a of collapse coil portion.

The 36a of collapse coil portion of torsion spring 36 is supported axle 19 and inserts logically, is clipped between the upper bottom portion of upper surface and protuberance 15 of hold assembly 31.The supporting arm 36b of torsion spring 36 hangs and terminates on the not shown support set in the protuberance 15, and application of force arm 36c hangs the card that terminates in hold assembly 31 and ends on the protuberance 34.Hold assembly 31 is inserted logical because under the state that makes the 36a of collapse coil portion compression, be supported axle 19; So hold assembly 31 is compressed coil portion 36a (Z1 direction) application of force downwards; Its result is that hold assembly 31 is positioned at driven in rotation body (driver part) 40 extruding under it.Simultaneously, through application of force arm 36c, hold assembly 31 is always by to CW (α direction) application of force.

In the assembling operation of rotary driving part 1, at first, 1 torsion spring 36 is put into mechanism's accommodation space 20 from the downside of the protuberance 15 of universal stage 10, insert the logical 36a of collapse coil portion with bolster 19.Next, 1 hold assembly 31 is put into mechanism's accommodation space 20 from downside, make bolster 19 insert logical support holes 32.At this moment, the application of force arm 36c of torsion spring 36 is hung terminate in card only on the protuberance 34.

If under the state that twists to the β direction, be pressed into hold assembly 31 to the Z2 direction, then as shown in Figure 5, keep pawl 33 to get in the non-grasp opening portion 23 of universal stages 10.Subsequently, if according to the acting force of torsion spring 36 to the β direction, making hold assembly 31 is that fulcrum rotates to CW (α direction) with bolster 19, then keeps pawl 33 outstanding laterally from grasp opening portion 22.At this constantly, if decontrol hands from hold assembly 31, then hold assembly 31 is compressed in being positioned on the 22c of wall portion on the CW of grasp opening portion 22, and hold assembly 31 is compressed on the restrictions 22b of downside of grasp opening portion 22.

Like this, if 1 hold assembly 31 is assembled on the universal stage 10, then this hold assembly 31 is remained in the grasp opening portion 22 by the acting force of the α direction of torsion spring 36 and Z1 direction and is not come off.Thereby, can 3 torsion springs 36 be installed successively on universal stage 10 and 3 hold assemblies make it not come off, after this, the operation that driven in rotation body 40 is installed on axial region 14 peripheries becomes easy.

Driven in rotation body 40 adopts the synthetic resin material to form, and has sliding eye 41 in central authorities.As shown in Figure 3, on the formed axial region 14 in the center of universal stage 10, be provided with the 14b of sliding gomphosis portion that diameter forms slightly for a short time.Driven in rotation body 40 inserts in mechanism's accommodation space 20 from the downside of universal stage 10, and sliding eye 41 is inserted logical by the 14b of sliding gomphosis portion with the gap rotation of minimum freely.Form the recess in circle footpath in the bottom of driven in rotation body 40, sliding eye 41 be rotated the 14b of sliding gomphosis portion has been installed freely after, in above-mentioned recess, insert set collar 50.Because set collar 50 be pressed into the bottom that hole 51 was pressed into and was fixed in axial region 14, rock more greatly producing up and down so driven in rotation body 40 is supported to not in the periphery of axial region 14, and can rotate freely independently with universal stage 10.

When the 14b of sliding gomphosis portion installing drive rotary body 40, utilize the upper surface 42 press nip parts 31 of driven in rotation body 40, each hold assembly 31 is pushed by upper surface 42 through the 36a of the collapse coil portion acting force of torsion spring 36.

On the upper surface 42 of driven in rotation body 40, on 3 positions, form the 1st and switch cam 43.Switching cam 43 for 3 the 1st disposes by the angle of 120 degree around center line O-O.The 1st switching cam 43 is cam paths, and the clamping switching part 43a of this cam path is positioned at the outer circumferential side of driven in rotation body 40, and non-clamping switching part 43b is positioned at than clamping switching part 43a and more leans on clockwise side (α side) and the position near sliding eye 41.Being inserted into the 1st sliding freely at the set sliding axle 35 in the bottom of each hold assembly 31 switches in the cam 43.

On the upper surface 42 of driven in rotation body 40, whole the 2nd switching cam 44 that forms on 3 positions.The 2nd switches cam 44 also forms by the angle configurations of 120 degree around center line O-O.Each the 2nd switching cam 44 forms from the upper surface 42 of driven in rotation body 40 outstanding to the top.The 2nd switch cam 44 the end towards the α side be rake 44a, rake 44a forms along with towards the β direction and gradually away from upper surface 42.The 2nd switches cam 44 has from rake 44a to the continuous 44b of rise portion of β direction.The 44b of rise portion is the plane parallel with upper surface 42.

Each the 2nd switching cam 44 is compared with the length dimension of the circumferencial direction of rake 44a, and the length dimension of the circumferencial direction of the 44b of rise portion is fully long.Lower surface at hold assembly 31 is formed with sliding part 31a, and sliding part 31a slides freely on rake 44a and the 44b of rise portion.

As shown in Figure 3, on the outer peripheral face of driven in rotation body 40, be formed with and switch fastener 45.Switching fastener 45 is shaggy tooths of arranging by certain spacing in a circumferential direction.

Below, the dish holding action of rotary driving part 1 is described.

When rotary driving part 1 does not work to universal stage 10 and driven in rotation body 40 in external force, be set at Fig. 1 and Fig. 4 and clamp position shown in Figure 6.

Each hold assembly 31 because by torsion spring 36 to CW (α direction) application of force; So like Fig. 1 and shown in Figure 4; Each hold assembly 31 rotates to the α direction in mechanism's accommodation space 20 of universal stage 10, becomes the clamping posture, keeps pawl 33 to be projected into the outside from grasp opening portion 22.

Because hold assembly 31 rotates by the α direction by the acting force of torsion spring 36,, driven in rotation body 40 being rotated around axial region 14 to the α direction so pass through the revolving force of each hold assembly 31.Then, the sliding axle 35 that is provided with in the bottom of hold assembly 31 is positioned at the clamping switching part 43a of the outer circumferential side of the 1st set on the driven in rotation body 40 switching cam 43.

As shown in Figure 6, because driven in rotation body 40 is rotated to the α direction,, the sliding part 31a of the lower surface of each hold assembly 31 switches on the end of β direction side of the 44b of rise portion of cam 44 so taking the 2nd.Thereby hold assembly 31 is being raised under upper surface 42 than driven in rotation body 40 state above more leaning on, and is in to keep the leading section 33b of pawl 33 to be projected into the state on the flange part 11.

If after in the center pit Da of the protuberance 15 entering dish D at universal stage 10 as shown in Figure 1, rotary driving part 1 is configured to clamp position, then keep the rake 33a of pawl 33 to contact with the circumference of the center pit Da that coils D.On hold assembly 31,, so receiving above-mentioned rotary action power, rake 33a is extruded on the circumference of the center pit Da that coils D because work from the rotary action power of torsion spring 36 to the α direction.Thereby the central part of dish D is pushed to the Z1 direction through rake 33a, and dish D is held under the state that is extruded on the support 12.

If driving main shaft motor 3 under the clamp position of Fig. 1, then universal stage 10 is rotated with turning axle 4, is clamped in the dish D rotation on the universal stage 10.Then,, read the signal that is write down on the dish D, perhaps tracer signal on dish D by the shaven head that in casing, is provided with.

Then, as shown in Figure 2, when the clamping of releasing dish D, the clamping cancel system work in the driver element, tabular platform constraint component 61 is hung in any fastening groove 13 that forms on the flange part 11 that terminates in universal stage 10, retrains universal stage 10.Then, the switching fastener engagement of the peripheral part of formed tooth bar and driven in rotation body 10 is switched driver part 62 and is moved on the switching driver part 62, and driven in rotation body 40 is rotated to the β direction.

If under the restrained state of universal stage 10; Driven in rotation body 40 is rotated to the β direction by the strong hand; Then switch the rotating force that 43 pairs of sliding axles 35 of cam apply the β direction through the 1st of driven in rotation body 40, sliding axle 35 is directed to the non-clamping switching part 43b of the central side of the 1st switching cam 43.At this moment, each hold assembly 31 is that middle mind-set β direction is rotated with bolster 19, like Fig. 2 and shown in Figure 5, keeps pawl 33 to close in the non-grasp opening portion 23, becomes non-clamping posture.The maintenance pawl 33 of the hold assembly 31 of non-clamping posture closes in the circle footpath of the center pit Da that coils D, and the holding force of coiling D is disengaged.

And then; As shown in Figure 7; If driven in rotation body 40 rotates to the β direction, then the sliding part 31a of the lower surface of hold assembly 31 switches on the 44b of rise portion and the rake 44a of cam 44 the 2nd and slides, and descends to upper surface 42 position contacting with driven in rotation body 40.Then, hold assembly 31 is compressed on the upper surface 42 by the elastic force pressure of the 36a of collapse coil portion of torsion spring 36.Thereby the hold assembly 31 of non-clamping posture is compared during with the clamping posture, to the Z1 direction descend the 2nd switch the height dimension of cam 44 amount.

In addition; For from Fig. 2, Fig. 5, non-clamp position shown in Figure 7, shift and be Fig. 1, Fig. 4, clamp position shown in Figure 6, make and switch driver part 62 and leave from driven in rotation body 40; Platform constraint component 61 is left from universal stage 10, removed the constraint of universal stage 10 and driven in rotation body 40.Its result does, through the acting force of torsion spring 36, shifts and is above-mentioned clamp position.

As shown in Figure 1; Hold assembly 31 during the clamping posture rises through the 44b of rise portion of the 2nd switching cam 44; So the height dimension H1 on the direction parallel with center line O-O till from support 12 to the leading section 33b that keeps pawl 33 is bigger than the height dimension H0 of protuberance 15, keep the leading section 33b of pawl 33 more outstanding to the Z2 direction a little than the upper surface of protuberance 15.

Hold assembly 31 during the clamping posture is because the height dimension H1 of the leading section 33b of maintenance pawl 33 is bigger; So in the center pit Da of protuberance 15 entering dish D and hold assembly 31 when the α direction is rotated, keep the leading section 33b of pawl 33 can move to the upside of dish D reliably.Thereby, be easy to utilize the center pit Da of the rake 33a holding tray D that keeps pawl 33.For example; When protuberance 15 gets in the center pit Da; Even if the gauge situation bigger that dish D deforms or coils D than standard; Or protuberance 15 gets into more shallowly situation in the center pit Da of dish D under, whole maintenance pawls 33 is protruded on the dish D, by the circumference of the center pit Da of 3 reliable holding tray D of rake 33a.

On the other hand, if hold assembly 31 as shown in Figure 2 rotates to non-clamping posture, then the height dimension H2 of the leading section 33b of the maintenance pawl 33 of hold assembly 31 diminishes.Height dimension H2 is identical or littler than it with the height dimension H0 of protuberance 15, so the leading section 33b of the maintenance pawl 33 of non-clamping posture is not outstanding from the upper surface of protuberance 15, does not have because the danger that leading section 33b sustains damage the face of dish D.

In addition, because the height dimension H2 of leading section 33b during can be corresponding non-clamping, lower the height dimension H0 of protuberance 15, so can make rotary driving part 1 slimming.Therefore, can shorten from the state of Fig. 2 and make protuberance 15 insert in the center pit Da needed rotary driving part 1 to the amount of movement of Z2 direction.In addition, can shorten to remove clamping and with protuberance 15 from the amount of movement of center pit Da when the Z1 direction is extracted.Thereby what can make rotary driving part 1 in the casing moves up and down the space attenuation, is easy to make the slimming of dish device.

In addition, like Fig. 3 or shown in Figure 6, the set the 2nd switches cam 44 on the upper surface 42 of driven in rotation body 40, and with respect to the length dimension of the circumferencial direction of rake 44a, the length dimension of the circumferencial direction of the 44b of rise portion is fully big.

Therefore; From clamp position shown in Figure 1 when clamping disarm state shown in Figure 2 shifts; In the stroke that begins most; Switch cam 43 through the 1st hold assembly 31 is rotated to the β direction, the leading section 33b of maintenance pawl 33 gets into the inboard of the circumference of center pit Da, and the rake 44a through the 2nd switching cam 44 descends hold assembly 31 afterwards.That is to say, keep hold assembly 31 being descended after pawl 33 closes in the non-grasp opening portion 23 of peristome 20.Thereby, can prevent that the hold assembly 31 in the down maneuver is hooked on the first-class not good situation of circumference of the center pit Da of dish D.

In addition, when shifting to clamp position shown in Figure 1 from clamping disarm state shown in Figure 2, when hold assembly 31 rose, hold assembly 31 rotated hardly, after hold assembly 31 rises, just rotated to the α direction, became the clamping posture.Thereby, make hold assembly 31 from non-clamping posture when the clamping posture is rotated, be easy to prevent to keep pawl 33 to be hooked in the first-class not good situation of circumference of center pit Da.

Fig. 8 (A) is that expression is arranged at the enlarged side view that the 2nd on the driven in rotation body 40 switches other embodiments of cam (B).

Shown in Fig. 8 (A) the 2nd switches cam 144 and forms rake 144a in the α side, forms and the continuous 144b of rise portion of rake 144a in the β side.And, on the end of the β side of the 144b of rise portion, be provided with falling portion 144d across the 2nd rake 144c.

Using the 2nd to switch in the rotary driving part of cam 144; From non-clamp position when clamp position shifts; Hold assembly 31 on one side in the enterprising line slip of the 144b of rise portion, rotates with the periphery to protuberance 15 outstanding on one side after rising through dip plane 144a.So far, identical with above-mentioned embodiment.Switch in the cam 144 through the 2nd shown in Fig. 8 (A); Hold assembly 31 is rotated to the α direction; Be about at the rake 33a that keeps pawl 33 before the circumference of center pit Da of contact disc D; After perhaps just having contacted, falling portion 144d moves under hold assembly 31, and hold assembly 31 is depressed to the Z1 direction by the 36a of collapse coil portion of torsion spring 36.As shown in Figure 1, owing to the hold assembly on the center pit Da that touches dish D 31 is suppressed to the Z1 direction through the 36a of collapse coil portion, thereby can utilize the circumferences that keep pawl 33 firm maintenance center pit Da.

When returning non-clamping posture from the clamping posture, driven in rotation body 40 rotates to the β direction, and hold assembly 31 rises through the 2nd rake 144c.Then, when hold assembly 31 slides on the 144b of rise portion, rotate, keep pawl 33 to be incorporated in the inside of protuberance 15, by means of rake 144a hold assembly 31 is descended afterwards to the β direction.

Shown in Fig. 8 (B) the 2nd switches in the cam 244, and the size of the length direction of the circumferencial direction of rake 144a is bigger than the length dimension of the circumferencial direction of the 144b of rise portion.Thereby when when clamp position arrives non-clamp position, hold assembly 31 rotates to the β direction, descends to the Z1 direction simultaneously.In addition, from non-clamp position when clamp position shifts, rotating on the outstanding direction of the periphery of protuberance 15 while hold assembly 31 rises.

Also having, is following structure in the above-described embodiment: hold assembly 31 is by the 36a of the collapse coil portion downward direction application of force of torsion spring 36, and through the 2nd switching cam 44, hold assembly 31 resists the acting force of the collapse coil 36a of portion and rises.But the 2nd switching cam also can be the helicla flute that extends to the Z2 direction, does not use the acting force of spring, and hold assembly 31 is by helicla flute guiding carrying out lifting action.In addition, the 1st switching cam 43 and the 2nd switching cam 44 also can wholely form.

Claims

1. one kind coils device; Possesses rotary driving part; This rotary driving part has universal stage, driver part and a plurality of hold assembly, and this universal stage has the support of the face of carrier, is driven by the rotation of the power of motor; This driver part relatively moves with respect to above-mentioned universal stage, these a plurality of hold assemblies can from and above-mentioned support between the clamping posture of holding tray move to the non-clamping posture of retreating to the inboard of the center pit of above-mentioned dish; By the center pit of this rotary driving part holding tray and be rotated driving; Being characterized as of this dish device,

Between above-mentioned universal stage and above-mentioned driver part, be provided with switching mechanism; This switching mechanism relatively moves through above-mentioned universal stage and above-mentioned driver part; Make above-mentioned hold assembly move to above-mentioned non-clamping posture from above-mentioned clamping posture, the height dimension of the above-mentioned support of above-mentioned hold assembly distance was low when the height dimension of above-mentioned switching mechanism above-mentioned support of above-mentioned hold assembly distance during with above-mentioned non-clamping posture was set at than above-mentioned clamping posture.

2. dish device as claimed in claim 1 is characterized by,

On above-mentioned universal stage, protuberance is set, this protuberance is inserted into the center pit of above-mentioned dish, and above-mentioned hold assembly is incorporated in the inside of raised part when above-mentioned non-clamping posture.

3. dish device as claimed in claim 1 is characterized by,

Above-mentioned hold assembly from above-mentioned clamping posture when above-mentioned non-clamping posture moves, above-mentioned hold assembly is to the medial movement of the center pit of above-mentioned dish and after finishing, and moves to the direction of height dimension step-down.

4. dish device as claimed in claim 1 is characterized by,

On a certain side of above-mentioned universal stage and above-mentioned driver part; Rotate freely and move and support above-mentioned hold assembly freely to short transverse; The switching cam is set on the opposing party, and this switching cam makes above-mentioned hold assembly move to above-mentioned non-clamping posture from above-mentioned clamping posture.

5. dish device as claimed in claim 4 is characterized by,

Above-mentioned switching cam has: the 1st switches cam, makes above-mentioned hold assembly from the medial movement of above-mentioned clamping posture to the center pit of above-mentioned dish; And the 2nd switch cam, and above-mentioned hold assembly is moved to the direction of height dimension step-down.

6. dish device as claimed in claim 4 is characterized by,

Be provided with spring members, this spring members to above-mentioned hold assembly towards the above-mentioned clamping posture application of force.

7. dish device as claimed in claim 6 is characterized by,

Above-mentioned spring members to above-mentioned hold assembly towards the further application of force of the direction of height dimension step-down.

8. dish device as claimed in claim 6 is characterized by,

On above-mentioned universal stage, bolster is set, above-mentioned hold assembly is rotated freely and is bearing in freely on the above-mentioned bolster to endwisely slipping, and above-mentioned spring members is inserted logical by above-mentioned bolster, be arranged between above-mentioned universal stage and the above-mentioned hold assembly.

9. dish device as claimed in claim 8 is characterized by,

On above-mentioned universal stage, be provided with restrictions, this restrictions when above-mentioned clamping posture is rotated, prevents relatively that with above-mentioned hold assembly above-mentioned hold assembly from deviating from from above-mentioned bolster at above-mentioned hold assembly.