CN100456383C - Disk cartridge - Google Patents
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- CN100456383C CN100456383C CNB2005800003475A CN200580000347A CN100456383C CN 100456383 C CN100456383 C CN 100456383C CN B2005800003475 A CNB2005800003475 A CN B2005800003475A CN 200580000347 A CN200580000347 A CN 200580000347A CN 100456383 C CN100456383 C CN 100456383C
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- valve plate
- runner
- disk cartridge
- aperture
- prevent
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Abstract
A disk cartridge has a cartridge body (2) constituted of a lower shell (7) and an upper shell (6); a rotation wheel (4) pivotally received in the cartridge body and in which an optical disk (3) is received; a pair of shutter plates (5a, 5b) positioned between the lower shell (7) and the rotation wheel (4), and opening a first opening (24) and a second opening (44) in conjunction with the pivoting of the rotation wheel (4). The second shutter plate (5b) is pivotally attached to the first shutter plate (5a) by a supporting shaft (62a) inserted into a shaft hole (54) provided in the first shutter plate (5a). Locking sections (62e, 62f) having larger diameters than the shaft hole (54) are provided at the head section of the supporting shaft (62a), and this prevents the supporting shaft (62a) from coming off from the shaft hole (54) with the second shutter plate (5b) attached to the first shutter plate (5a). As a result, the second shutter plate is less likely to come off from the supporting shaft of the first shutter plate even if the cartridge is subjected to impact.
Description
Technical field
The present invention relates to a kind of disk cartridge, be used to prevent in order to the opening and closing aperture so that the deviating from of a pair of valve plate that the part of dish exposes.
Background technology
Comprise a kind of disk cartridge that is disclosed among the Japanese Unexamined Patent Application publication NO.2003-109343 in the various disk cartridge.The disk cartridge that is disclosed among the Japanese Unexamined Patent Application publication NO.2003-109343 has an inner runner and a pair of valve plate in the disk cartridge main body, and light box is housed among the inner runner.Inner runner rotates among the disk cartridge main body, and is used to lay the superincumbent aperture of light box when according with the aperture of disk cartridge main body when one, and this opens above these two apertures are placed in the CD that will put valve plate.Information signal is recorded on the light box that is used among this class disk cartridge very densely, and thereby when the deposition of foreign material of dust etc. is on signal recording surface, information signal can not accurately be write down and be reset.For tackling this problem, disk cartridge uses a pair of valve plate as the valve plate mechanism that is used to close these apertures, and in disk cartridge time spent not, two valve plates are coupled to each other to prevent that whereby forming the gap makes dust can not enter the disk cartridge main body.Specifically, this of disk cartridge is formed at two axis holes of two valve plates and rotates explicitly with the rotation of inner runner by a bolster is injected valve plate.
But,, constitute two shells up and down of disk cartridge main body and the inside runner among the disk cartridge main body and two valve plates and all be out of shape when highly falling at the box dish because of vibrations.Thereby two valve plates that are secured to bolster rotationally may be sloughed from bolster, are out of shape because of vibrations owing to constitute each parts of disk cartridge.Secondly, the control projection that is formed at inner runner may be deviate from from each cam rail that is formed at each valve plate.When each valve plate was deviate from from bolster or controlled projection and deviate from from each cam rail, this can not close the aperture of inner runner to valve plate and the aperture of disk cartridge main body can not prevent to enter the disk cartridge main body such as foreign matters such as dusts.Secondly, when disk cartridge was contained on record and/or the replay device under this state, each valve plate was unlocked, and operating troubles may therefore occur in record and/or replay device.
Secondly, because the vibrations that cause when each parts of disk cartridge fall because of disk cartridge temporarily are out of shape and recovery immediately after its distortion, so each valve plate may be clamped between such as other some parts, and thereby be the state that a kind of each aperture is not opened reliably, that is a kind of state that forms the gap at each place, aperture, may be held.Might be such as foreign matters such as dusts in the case also from entering the disk cartridge main body just like the above-mentioned gap location that forms.
Secondly, when a kind of small-sized disk cartridge of the compact disk that uses its record format to be common to be used in the CD among the disk cartridge was provided, the size of disk cartridge can not be reduced simply.This be because, be contained in record and/or during replay device, the one recording/reproducing aperture that a photon pickup apparatus is entered etc. can not reduce dimensionally must be the same big with standard-sized disk cartridge recording/reproducing aperture to keep compact in small-sized disk cartridge.So in small-sized disk cartridge, because the ratio that the aperture occupies in whole disk cartridge increases, the intensity of disk cartridge is then easily deformable when it bears vibrations with regard to having reduced disk cartridge.As a result, small-sized disk cartridge when it falls because of the distortion due to the vibrations will loom large greater than the disk cartridge that is disclosed among the Japanese Unexamined Patent Application publication NO.2003-109343.
Summary of the invention
That formulates in view of above problems the purpose of this invention is to provide the reliable disk cartridge of a kind of height, even bearing external vibrations, disk cartridge also can prevent each valve plate and the disengagement of a certain predetermined member, and can prevent to write down and/or the operation of replay device improper, and can prevent that dust etc. from entering disk cartridge.
Specifically, the purpose of this invention is to provide the reliable disk cartridge of a kind of height, guarantee that a valve plate can not be from the bolster disengagement of another valve plate.
Secondly, the purpose of this invention is to provide the reliable disk cartridge of a kind of height, the control projection of the runner by guaranteeing to be used to rotate second valve plate can not be thrown off and executive logging and replay operations reliably from the cam rail of second valve plate.
Secondly, the purpose of this invention is to provide a kind of disk cartridge, can in case first valve plate throw off from the runner of first valve plate.
Secondly, the purpose of this invention is to provide a kind of disk cartridge, can assemble easily and boost productivity.
Disk cartridge according to the invention comprises the disk cartridge main body, comprises being formed with on it being used to write down and/or the lower casing in first aperture of replay device and the upper casing of the lower casing that reclines; Runner is housed in rotationally in the disk cartridge main body and also puts dish therein, and is formed with second aperture corresponding to first aperture on it, exposes with the dish that will be put; And valve mechanism, between lower casing and the runner and corresponding to the rotation of runner and first and second apertures are opened in first aperture when coinciding with second aperture.Valve mechanism comprises first valve plate that is secured to one of two shells rotationally and second valve plate that is secured to first valve plate rotationally.One of valve plate is formed at the axis hole of another valve plate and is secured to another valve plate rotationally by the bolster reeve that will be provided with thereon; Be arranged at diameter that each lock part of bolster end has greater than axis hole and be locked in axis hole, thereby valve mechanism is prevented from throwing off with runner.
Preferably, described lock part forms by the end portion with ultrasound wave or the described bolster of heat melts.
Secondly, disk cartridge according to the invention comprises the disk cartridge main body, comprises being formed with on it being used to write down and/or the lower casing in first aperture of replay device and the upper casing of the lower casing that reclines; Runner is housed among the disk cartridge main body rotationally and puts dish therein, and is formed with thereon corresponding to second aperture in first aperture and exposes with the dish that will be put; Valve plate mechanism, between lower casing and runner, have first valve plate that is secured to one of two shells rotationally and second valve plate that is secured to first valve plate rotationally, and corresponding to the rotation of runner and first and second apertures are opened in first aperture when coinciding with second aperture; And thrust piece, be used for opening and rotate on the direction in first and second apertures and the pushing runner in valve plate mechanism.First valve plate deviates to prevent that by first locking mechanism prevents to throw off with runner.This first deviate to prevent locking mechanism comprise be formed at runner deviate to prevent guide groove and be formed at first valve plate deviate to prevent that with this guide groove from engaging deviates to prevent projection, describedly deviate to prevent that projection is engaged in the described guide groove of deviating to prevent at least when first and second valve plates are opened first and second apertures.Secondly, second valve plate deviates to prevent that by second locking mechanism prevents to throw off with first valve plate and deviate to prevent that by the 3rd locking mechanism prevents to throw off from runner.The rotational support portions that is formed at one of first and second valve plates is deviate from anti-locking mechanism as second, and described rotational support portions comprises another the bolster that inserts in described first and second valve plates.The control projection of runner is deviate from anti-locking mechanism as the 3rd, the cam portion of second valve plate that described control protrusion engagement is rotated in being formed at corresponding to the rotation of runner and with respect to first valve plate, the 3rd deviates to prevent that locking mechanism comprises that the disengagement by width that described control lug tips partly is wider than cam rail is formed prevents part.
Preferably, an end of described thrust piece is locked in the lock part of runner, and its other end is locked in first valve plate that is secured to one of described upper casing and lower casing, or is locked in the lock part of one of described upper casing and lower casing.
Description of drawings
Fig. 1 is a skeleton view of using a kind of disk cartridge of the present invention when upper casing one side is watched;
Fig. 2 is the skeleton view of disk cartridge when lower casing one side is watched;
Fig. 3 is the decomposition diagram of disk cartridge;
Fig. 4 is the plan view that constitutes the upper casing of disk cartridge when inside surface one side is watched;
Fig. 5 is the skeleton view of the major part of upper casing front surface one side;
Fig. 6 is the plan view that constitutes the lower casing of disk cartridge when inside surface one side is watched;
Fig. 7 is the plan view of a major part, is used to illustrate the relation between a plug-in mounting guide groove and the plug-in mounting pilot pin.
Fig. 8 is the skeleton view that puts surface on it runner when watching from CD;
Fig. 9 is the skeleton view of the runner when watching of the surface on lower casing one side;
Figure 10 is the skeleton view of a major part, is used to illustrate a part to be driven that is formed at runner;
Figure 11 is the skeleton view of a major part, is used to illustrate the unsteady anti-locking mechanism of a valve plate;
Figure 12 is the cross section view of locking projections major part that is used for pushing in one direction the thrust piece of runner;
Figure 13 is the skeleton view that shows each valve plate and runner;
Figure 14 is the cross section view of major part that shows the rotation supporting structure of first valve plate;
Figure 15 is the skeleton view that shows the major part that concerns between first valve plate and second valve plate;
Figure 16 is the skeleton view of major part that shows the supporting structure of second valve plate that is secured to first valve plate;
Figure 17 is the skeleton view of major part that is arranged at the rotational support portions of second valve plate;
Figure 18 is the skeleton view that shows the major part that concerns between second valve plate and the runner;
Figure 19 shows that each valve plate closes the plan view of aperture state, has omitted lower casing and CD;
Figure 20 is the plan view that shows the state in each valve plate unlatching aperture, has omitted lower casing and CD;
Figure 21 is the decomposition diagram of a locking mechanism;
Figure 22 is the cross section view of runner major part, shows between a runner sloping portion and the locking guide groove to concern;
Figure 23 is the cross section view of major part, shows that latch does not inject the state that unlock piece is positioned at plug-in mounting guide groove wherein;
Figure 24 is the cross section view of major part, shows that latch injects the state of plug-in mounting guide groove;
Figure 25 is a plan view, shows the relation between plug-in mounting guide groove, pilot hole and the mating holes;
Figure 26 is the skeleton view of disk cartridge, shows the state that open in first aperture;
Figure 27 is a skeleton view of using disk cartridge of the present invention when upper casing one side is watched;
Figure 28 is the skeleton view of disk cartridge when lower casing one side is watched;
Figure 29 is the decomposition diagram of disk cartridge;
Figure 30 is the plan view that constitutes the upper casing of disk cartridge when inside surface is watched;
Figure 31 is the plan view that constitutes the lower casing of disk cartridge when inside surface is watched;
Figure 32 is the skeleton view of the surface of putting CD from it runner when watching;
Figure 33 is the skeleton view of runner when lower casing one side surface is watched;
Figure 34 is the decomposition diagram of each valve plate and runner;
Figure 35 is a skeleton view, shows that first and second valve plates are assemblied on the runner and are positioned at the state of off-position;
Figure 36 first deviates to prevent the cross section view of the major part of locking mechanism;
Figure 37 is a skeleton view, shows the state that first and second valve plates are assemblied in lower casing and close first aperture when the lower casing inboard is watched;
Figure 38 is the decomposition diagram of a major part, and it shows the relation between first and second valve plate;
Figure 39 is the skeleton view of a major part, shows that first and second deviate from anti-locking mechanism;
Figure 40 is a plan view, shows that first and second valve plates close the state in first and second apertures, has omitted upper casing and CD;
Figure 41 is a plan view, shows that first and second valve plates open the intermediate steps in first and second apertures, has omitted upper casing and CD;
Figure 42 is a plan view, shows that first and second valve plates open the state in first and second apertures, has omitted upper casing and CD;
Figure 43 is the skeleton view of disk cartridge, shows the state that open in first aperture;
Embodiment
A kind of application disk cartridge of the present invention is illustrated hereinafter with reference to each figure.Using disk cartridge of the present invention is a kind of small-sized disk cartridge, and it also can be contained in record and/or replay device disclosed, that be used for the standard size disk cartridge among the Japanese Unexamined Patent Application publication NO.2003-109343.The disk cartridge that is disclosed among the Japanese Unexamined Patent Application publication NO.2003-109343 uses the CD with about 12cm diameter as recording medium, uses the CD of diameter less than the CD of standard size disk cartridge and use disk cartridge of the present invention.Form small size owing to use disk cartridge of the present invention, and use the CD of diameter less than used CD in the disk cartridge that is disclosed among the Japanese Unexamined Patent Application publication NO.2003-109343, so, portable special good, though its recording capacity is less than the standard size disk cartridge.
As shown in Fig. 1 to 3, to use disk cartridge 1 of the present invention and put runner 4 and a pair of first and second valve plate 5a and the 5b, described valve plate is as the valve mechanism on the disk cartridge main body 2, and CD 3 is housed among the runner 4.Disk cartridge main body 2 constitutes against each other by making a cover remain the upper casing 6 and the lower casing 7 of combination with one another.
The CD 3 that is used among the disk cartridge 1 has the central aperture 3a that is formed on the center, and the dish rotating drive mechanism of record and/or replay device engages with central aperture 3a.Notice that CD 3 can be a kind of formula CD of only resetting, have according to there being information signal to be recorded to be formed on dish suprabasil pit (pit pattern) pattern; A kind of CD-RW is used phase-change material (phasechange) in recording layer; Perhaps another Write once optical disc uses organic coating (organic pigment material) and analog in recording layer.Secondly, except that CD, magneto-optic disk, disk etc. can be used as stand-by recording medium, and and can use cleaning deskitte.
Shown among Fig. 4, the upper casing 6 that constitutes disk cartridge main body 2 forms by the injection molding resin material.The first type surface of upper casing 6 forms rectangular shape haply on the whole, and the front surface of first type surface as distolateral for the insertion of record and/or replay device, forms roughly arc.Secondly, outer periphery wallboard 8, the side surface of formation disk cartridge main body 2, the outer periphery edge that centers on upper casing 6 first type surfaces erectly forms.
First pickup apparatus enters notch 9 and is formed at outer periphery wallboard 8 in the front surface center, makes the optical pickup of record and/or replay device enter wherein.Secondly, a plurality of boss 10 are formed with screw hole on it, and it is neighbouring to connect lower casing 7 by each screw hole to be formed on outer periphery wallboard 8 each bights.
Huan Xing interior periphery wallboard 11 interior periphery that is formed at outer periphery wallboard 8 is connected to it with interior haply, and runner 4 is housed within the interior periphery wallboard 11 rotationally.Shown among Fig. 5, interior periphery wallboard 11 is positioned at the front surface centre and has second pickup apparatus formed thereon and enters notch 12, makes the optical pickup of record and/or replay device enter via it.The guiding wallboard when rotating put runner 4 and is used as runner 4 therein rotationally by interior periphery wallboard 11.When runner 4 was put, the first type surface of upper casing 6 part was put portion together with runner 4 formation dishes.Secondly, lifting device 14 is formed near second pickup apparatus enters notch 12 on the inboard bottom part of interior periphery wallboard 11 with lifting runner 4.When the first and second valve plate 5a and 5b closed first aperture 24, lifting device 14 was lifted to lower casing 7 one sides with runner 4.
Clamping plate 13 are secured to upper casing 6 inside surface approximate center, with the dish pedestal chucking optical disk 3 together with the dish rotating drive unit that constitutes record and/or replay device.Clamping plate 13 give attaching by attaching ring 13a.Specifically, the attaching mode of clamping plate 13 causes it to be clamped at attaching ring 13a and haply between the center of upper casing 6 inside surfaces, and attaching ring 13a waits by welding and is fixed in the center of upper casing 6 inside surfaces haply.CD 3 can freely rotate in dish is put portion, its configuration make the dish pedestal be engaged in central aperture 3a and in addition CD 3 be sandwiched between between dish pedestal and the clamping plate 13.
Note, constitute the upstanding wall 16b of lower casing 7 pilot hole 26a and the upstanding wall 6b of its mating holes of formation 26b, will illustrate after a while, be formed at the inside surface of upper casing 6 in addition.
Shown in Fig. 2,3 and 6, lower casing 7 is connected in and disposes just like above-mentioned upper casing 6, forms by the injection molding resin material as above-mentioned upper casing 6.Lower casing 7 has the first type surface of essentially rectangular shape on the whole, and the front surface of first type surface, and front surface is inserted into record and/or replay device, and forms roughly circular shape.The outer periphery wallboard 21 that forms disk cartridge main body 2 side surfaces erectly forms around first type surface outer periphery edge, and in addition interior periphery wallboard 28 form in connect outer periphery wallboard 21.
A plurality of projections 27 are formed at one of the lateral edges of the rotary driver aperture 24b of one of the lateral edge portions of recording/reproducing aperture 24a of one of first aperture, 24 ingredients and one of first aperture, 24 ingredients, to prevent that dust etc. is in the described disk cartridge main body 2 that enters when the first and second valve plate 5a and 5b are closed first aperture 24.
Secondly, each boss 22 that is formed with through hole on it is formed on the back surface of outer periphery wall 21, so that be formed with each boss 10 of screw hole on its of the upper casing 6 that reclines.Shown among Fig. 2, upper casing 6 inserts screw 23 and its screw hole that is screwed into upper casing 6 boss 10 is connected in lower casing 7 by the through hole from lower casing 7 boss 22.
Secondly, plug-in mounting guide groove 25a and 25b are formed on the front surface of lower casing 7 in its both sides, and when disk cartridge 1 injected record and/or replay device, the plug-in mounting guide member of record and/or replay device was engaged in plug-in mounting guide groove 25a and 25b.As described among Fig. 7, each plug-in mounting guide groove 25a and the openend of 25b on front surface form the most widely, make plug-in mounting pilot pin 88 to inject wherein easily.Notice that the deepest part of each plug-in mounting guide groove 25a and 25b can form to such an extent that have identical with the thickness of plug-in mounting pilot pin 88 a haply width.In this configuration, even disk cartridge 1 is contained on the mounting portion of record and/or replay device, it also can be positioned on the surface direction, thereby can prevent the vibration of disk cartridge 1.Secondly, although explain again after a while, plug-in mounting guide groove 25b is furnished with locking mechanism 71 on the one hand, and the unlock piece 77 that constitutes the locking piece 72 of locking mechanism 71 is positioned among the plug-in mounting guide groove 25b, and is engaged in the latch of the plug-in mounting pilot pin 88 of plug-in mounting guide groove 25b as pushing unlock piece 77.
Secondly, shown among Fig. 2 and 6, pilot hole 26a is near a corner that is formed on lower casing 7 on its rear face, and conduct is used for disk cartridge 1 location and is installed in getting datum hole on record and/or the replay device.Secondly, aiming at adjustment hole 26b is formed near another corner.
Note, as illustrated in fig. 1 and 2, each guide groove 15 that when disk cartridge main body 2 injects record and/or replay device, is used to guide disk cartridge main body 2, be formed on two side surface portions of the disk cartridge main body of being made up of against each other upper casing 6 and lower casing 72, two side surface portions are parallel to the direction that disk cartridge main body 2 is inserted into record and/or replay device.
When upper casing 6 reclined lower casing 7, runner 4 was housed in the inboard that wherein the portion of putting is formed on interior periphery wallboard 11.Shown in Fig. 8 and 9, the runner 4 that is housed among the portion of putting forms by the injection molding resin material.The main surface portion branch of runner 4 forms haply plate shaped, and among its band notched side is arranged on disk cartridge main body 2 time, and dish is put portion and formed by the first type surface of upper casing 6 and one of the first and second valve plate 5a and 5b.Runner 4 forms circular, and annular section 43 erectly forms around its outer periphery edge.One second aperture 44, the same big with first aperture 24 that is formed at lower casing 7 haply, be formed at the first type surface part of runner 4.
When second aperture 44 was overlapped in first aperture 24 of lower casing 7, the CD of putting 1 exposed.That is second aperture 44 by corresponding to the aperture of the optical pickup aperture 24a in first aperture 24 with form corresponding to the aperture of its rotary driver aperture 24b.Secondly, second aperture 44 forms to such an extent that feasiblely widened gradually to absorb the error between it and first aperture 24 from the center to the outer periphery, and the aperture 24 of winning is not reduced because of the foozle and the alignment error size of runner 4.Form to such an extent that make two lateral edges or one of them outward-dipping about 1 ° such as, second aperture 44.
Note, when arbitrary lateral edges is outward-dipping, the lateral edges that is opposite to part 45 to be driven is tilted.This is in order to prevent that first aperture 24 from narrowing down because of following situation, promptly by nationality by rotating wheel 4 rotate the first and second valve plate 5a and 5b open first and second apertures 24 and 44 and runner 4 because mistake etc. and when excessively leaving the precalculated position, this lateral edges in runner 4 second apertures 44 radially is positioned at the inboard of a lateral edges in lower casing 7 first apertures 24 along lower casing 7 first apertures 24.
Secondly, shown among Fig. 8, the sloping portion 42 that partly tilts with respect to first type surface is formed at the bottom of annular section 43.Sloping portion 42 comes the outer periphery edge of supporting CD 3 by edge contact with it.And the signal recording surface of CD 3 contacts with the first type surface part face of runner 4, thereby prevents that signal recording surface from being swiped.
Secondly, shown among Fig. 2, described the first and second valve plate 5a and 5b are positioned on the outer surface in second aperture 44.Thereby shown among Fig. 9, sloping portion 44a and 44b form to such an extent that to prevent this first and second valve plate 5a and 5b are entered second aperture 44 towards the lateral edge portions in second aperture 44.Secondly, engaging groove 50 is formed at runner 4, thereby makes that closing first and second apertures 24 and 44: first valve plate 5a at the first and second valve plate 5a and 5b is engaged in engaging groove 50 and is prevented from upwards floating.Engaging groove 50 is to have roughly by one that the part of L shaped xsect forms, and its openend is positioned at lateral edge portions one side in first aperture 24.
Shown among Figure 10, part 45 to be driven is also outwards given prominence near being formed on runner 4 second apertures 44, and the valve unlatching pin 41 of the valve plate opener of formation record and/or replay device is engaged in part 45 to be driven.Part 45 to be driven has first to be driven 45a and second to be driven 45b, and the two is opened the record and/or replay device one side of part 45 to be driven and constitutes a notch, and the valve of record and/or replay device unlatching pin 41 is engaged in this notch.First to be driven 45a is that valve is opened pin 41 parts that recline when runner 4 rotates on the first and second valve plate 5a and 5b open the direction of first and second apertures 24 and 44.Simultaneously, second to be driven 45b is that valve is opened pin 41 parts that recline when runner 4 rotates on the first and second valve plate 5a and 5b close the direction of first and second apertures 24 and 44.Though will illustrate after a while, runner 4 by thrust piece 48 the first and second valve plate 5a and 5b close first and second apertures 24 and 44, pushed on Figure 10 arrow A direction, and thereby the strength that imposes on first to be driven 45a greater than imposing on second to be driven 45b's.So, the size of first to be driven 45a do greater than second to be driven 45b increasing its physical strength, and the height h1 of first to be driven 45a sets greater than the height h2 of second to be driven 45b herein.So first to be driven 45a does to such an extent that be higher than second to be driven 45b, make its physical strength increase and other valve open pin 41 and be able to engage more reliably.
Secondly, shown among Figure 10 and 11, first to be driven 45a has fitting piece 45d, is formed on the end and curves inwardly.When runner 4 rotated on the first and second valve plate 5a and 5b close the direction of first and second apertures 24 and 44, fitting piece 45d prevented to write down and/or the valve of replay device is opened pin 41 and is disengaged with the notch of being made up of first to be driven 45a and second to be driven 45b.Fitting piece 45d can be arranged at any one in the end of first and second to be driven 45a and 45b, and preferably is arranged at the end of first to be driven 45a.This be because, when runner 4 rotated on the direction of Figure 10 arrow A, first to be driven 45a was with noting down and/or the valve of replay device is opened pin 41 parts that will recline.
Note, the valve of record and/or replay device open pin 41 be from fitting piece 45d terminal with second to be driven 45b between the gap location insertion.Secondly, when runner 4 rotates, the parts 45 to be driven arching trajectory that draws, thus the direction of the unlatching of part to be driven 45 changes according to this track of part 45 to be driven.Though fitting piece 45d as above-mentioned be by forming towards crooked first to be driven the 45a of second to be driven 45b, but the size of fitting piece 45d, that is it is so definite to inboard projection amount of notch and angle of inclination, makes valve open pin 41 and always is engaged in fitting piece 45d continuously at runner 4 when rotating.
Pei Zhi part to be driven 45 is as described above rotated and when mobile, is exposed from lower casing 7 front surfaces that are formed with first aperture 24 on 24 Widths of first aperture at runner 4.When the first and second valve plate 5a and 5b opened first aperture 24, part 45 to be driven was arranged in the part of being widened by sloping portion 24c.
Shown among Figure 11, part 45 to be driven has engaging groove 45c, is formed at the bottom part of first and second to be driven 45a and 45b and is engaged in the first valve plate 5a.Close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, prevent that it from fluctuating thereby engaging groove 45c is engaged in the first valve plate 5a.So, formation very close to each other between the periphery edge in first aperture 24 and the first valve plate 5a, thus can prevent that dust etc. from entering disk cartridge main body 2.Say that more specifically the engaging groove 45c of part 45 to be driven prevents that together with being formed near runner 4 second apertures 44 engaging grooves 50 the first valve plate 5a from fluctuating.So, very close to each other being formed between second aperture 44 and the first valve plate 5a, thus can prevent that dust etc. from entering disk cartridge main body 2.
Note, shown among Fig. 4, second to be driven 45b regulation and control part 29 that reclines, the latter is connected in the pivot region of its interior periphery wallboard 11 with regulation and control runner 4 with the outer periphery wallboard 8 of upper casing 6, and this wallboard 11 is in the face of the part of the periphery edge part in lower casing 7 first apertures 24.
The thrust piece 48 that is made of volute spring etc. of Pei Zhi runner 4 leans and makes it to rotate on the first and second valve plate 5a and 5b close the direction of first and second apertures 24 and 44 as described above.One end of thrust piece 48 is locked in the locking piece 48a that is formed at runner 4 annular sections 43, and the other end is locked in to be formed on and is shown in the locking projection 48b on upper casing 6 inside surfaces among Fig. 4.Though thrust piece 48 extends when runner 4 rotates and shrinks, it is guided by guide groove 49, and guide groove is to be formed by a upright wallboard and an outer periphery wallboard 8 that is formed on the outside of the interior periphery wallboard 11 on upper casing 6 inside surfaces.As a result, thrust piece 48 can positioning in disk cartridge main body 2 when it extends and shrinks.Secondly, shown among Fig. 8 and 9, flange portion 47 encloses guide groove 49 around the outer periphery edge formation of runner 4 generally to seal.
Note, shown among Figure 12, when upper casing 6 is connected in lower casing 7, the end that is formed on the locking projection 46b on upper casing 6 inside surfaces is engaged in the rib 48c that is formed on the general cylindrical shape on lower casing 7 inside surfaces, thereby the locking projection 48b that executes thereon from the pushing force of thrust piece 48 is strengthened.
In the runner 4 of configuration as described above, the first and second valve plate 5a and 5b are subjected to the pushing of thrust piece 48 on first and second apertures 24 and 44 pent directions, and part to be driven 45 is opened at the first and second valve plate 5a and 5b and opened pin 41 by the valve of record and/or replay device on the direction of first and second apertures 24 and 44 and rotate.At this moment, interior periphery wallboard 11 is guided wallboard as one when runner 4 rotates.
Shown among Figure 13, described to the first and second valve plate 5a and 5b in, two valve plates are configured for the valve mechanism that opening and closing are formed at first aperture 24 of lower casing 7 and are formed at second aperture 44 of runner 4, the first valve plate 5a forms more greatly, and the second valve plate 5b forms less than the first valve plate 5a.
Shown among Figure 13, the first bigger valve plate 5a comprises the first valve plate part, 51, the first rotational support portions 53, and second axis hole 54.The first valve plate part 51 is closed first and second apertures 24 and 44, first rotational support portions 53 is by being formed on outer periphery wallboard 8 on upper casing 6 inside surfaces and first bolster, 52 rotatably supports between the interior periphery wallboard 11, and the second less valve plate 5b is secured to second axis hole 54.
The first valve plate part 51 comprises first side edge part 51a, and edge part in first side is positioned at a lateral edges place in runner 4 second apertures 44 when closing in second aperture 44; Second side edge part 51b forms to such an extent that be connected in first side edge part 51a; And the 3rd lateral edge portions 51c, form to such an extent that be connected in second side edge part 51b.Second side edge part 51b becomes by bending in the edge part 51a of first side, and the 3rd lateral edge portions 51c is by forming from second side edge part 51b excurvation.Secondly, four side edge part 51d, on the opposite of first to the 3rd lateral edge portions 51a to 51c, have the nemaline part 51e that dodges of wave that forms on it and prevent part and the analog that can dodge to dodge the boss 10 and 22, pilot hole 26a, the error logging that are formed at upper casing and lower casing 6 and 7 corners.Second side edge part 51b and the 3rd lateral edge portions 51c are made of the sloping portion on the reverse direction.Secondly, first side edge part 51a is engaged in the engaging groove 50 that is formed at runner 4, thereby can prevent floating of runner 4.
Secondly, the first valve plate part 51 is formed with guide groove part 51f on the surface of its lower casing 7 one sides, and guide groove part 51f is engaged in the projection 27 that is formed at lower casing 7 first apertures 24 periphery edges part.Close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, runner 4 is lifted to lower casing 7 one sides by the lifting device 14 of upper casing 6, and guide groove part 51f is engaged in the projection 27 that is formed at first aperture, 24 periphery edges, thereby dust etc. are prevented from entering disk cartridge main body 2.
Secondly, the first valve plate part 51 is formed with guide projections 51g on the surface of its CD 3 one sides, and guide projections 51g is engaged in the guide groove 55 that is formed on the runner 4 first type surfaces part.Guide projections 51g is engaged in the guide groove 55 of runner 4 to regulate and control the rotation of the first valve plate 5a whereby by situation.Secondly, regulation and control projection 51h is formed on the first valve plate part 51 to regulate and control the displacement of the first valve plate 5a on the surface of CD 3 one sides of the first valve plate part 51.Close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, regulation and control projection 51h is positioned at corresponding to the position around the non-signal record of the interior periphery side zone of CD 3 central aperture 3a, thereby is not also swiped when moving inward even prevent the signal record zone first valve plate 5a of CD 3 to be depressed.Open first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, regulation and control projection 51h enters near what be formed centrally in the runner 4 and dodges guide groove 56, so that do not disturb the rotation of the first valve plate 5a.
The first axis hole 53a is formed at first rotational support portions 53 of the first valve plate 5a.The first axis hole 53a forms to such an extent that be thicker than the first valve part 51 increasing its intensity, and first bolster 52 that is formed at upper casing 6 injects the first axis hole 53a.Shown among Figure 14, first bolster 51 is formed into a height like this, makes that it stretches out from first rotational support portions 53 when it injects the first axis hole 53a.The end of first bolster 52 is engaged in and is formed at one of lower casing 7 and holds axle bed, though to prevent first rotational support portions 53 since the vibrations due to waiting of dropping put on lower casing 7 can be from first valve plate 5a disengagement yet, and strengthen the intensity of first bolster 52.Notice that first valve plate can replace first bolster 52 to be supported by a bolster that is formed at lower casing 7 by 5a.
Shown among Figure 13, comprise the second valve part 61 as the above-mentioned second valve plate 5b that is engaged in the first valve plate 5a, be used for closing first and second apertures 24 and 44 together with the first valve part 51; And second rotational support portions 62, be secured to second axis hole 54 that is formed at the first valve plate 5a.
The second valve plate part 61 comprises first side edge part 61a, second side edge part 61b, and the 3rd lateral edge portions 61c.First side edge part 61a is engaged in the second side edge part 51b of the first valve part 51, second side edge part 61b successively is formed at first side edge part 61a and is engaged in the 3rd lateral edge portions 51c of the first valve part 51, and the 3rd lateral edge portions 61c successively is formed at first side edge part 61a and is positioned at the opposite of second side edge part 61b.First side edge part 61a be by with the opposed direction of sloping portion of the first valve plate part, 51 second side edge part 51b on sloping portion constitute, and second side edge part 61b be by with the opposed direction of sloping portion of the first valve part 51 the 3rd lateral edge portions 51c on sloping portion constitute.Secondly, the sloping portion of the sloping portion of first side edge part 61a and second side edge part 61b also all forms in the opposite direction.Close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, respectively, the second side edge part 51b of the first valve part 51 is engaged in the sloping portion of the second valve part, 61 first side edge part 61a, and the sloping portion of the first valve part 51 the 3rd lateral edge portions 51c is engaged in the sloping portion of the second valve part, 61 second side edge part 61b in the opposite direction.So, closing first and second apertures 24 and at 44 o'clock at a pair of first and second valve plate 5a and 5b, the first and second valve plate 5a and 5b are engaged with each other preventing that whereby dust etc. from entering coupling part inside, and make their this unlikely deflections when pressurized.
Secondly, shown in Figure 13 and 15, the first straight-line groove 58a is formed at the first side edge part 51a of the first valve part 51, and the first projection 59a that groove 58a engages is formed at and is engaged in lateral edge portions first side edge part 51a, runner 4 second apertures 44.The second straight-line groove 58b is formed at the second side edge part 51b of the first valve part 51, and the second projection 59b that is engaged in the second groove 58b is formed at the first side edge part 61a that is engaged in second side edge part 51b.Secondly, the 3rd straight-line groove 58c is formed at the 3rd lateral edge portions 51c of the first valve part 51, and the 3rd projection 59c is formed at the second side edge part 61b that is engaged in the 3rd lateral edge portions 51c.Close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, first to the 3rd groove 58a to 58c is engaged in first to the 3rd projection 59a to 59c and enters inside to prevent dust etc. whereby from coupling part.Notice that each valve plate that is formed with each groove and each projection is not limited to above example, even and each valve plate disposes on the contrary with above-mentioned example, also can reach same effect.
Secondly, as shown in figure 11, close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, the first valve plate 5a is engaged in the engaging groove 45c of the part to be driven 45 that is formed at runner 4, and the first side edge part 51a of the first valve plate part 51 is engaged in engaging groove 50, thereby the first valve plate 5a can be prevented from fluctuating.So between the periphery edge part and the first valve plate 5a that is formed on first aperture 24 very close to each other, thereby dust etc. can be prevented from entering disk cartridge main body 2.
Secondly, shown among Figure 13, projection 61d is formed at the end of the 3rd lateral edge portions 61c that is opposite to first side edge part 61a.Close first and second apertures 24 and at 44 o'clock at the second valve plate 5b, projection 61d is engaged near the bonding part 61e first aperture 24 that is formed on lower casing 7 front surfaces one side that is shown among Fig. 6, thereby dust etc. are prevented from entering from the gap between first aperture 24 and the second valve plate 5b.
Shown in Figure 13,16,17 and 18, the second bolster 62a is formed at second rotational support portions 62 and injects second axis hole 54 that is formed at the first valve plate 5a, first rotational support portions 53.Specifically, second rotational support portions 62 is made up of elastic component 62c that forms by line of rabbet joint 62b and 62d, and is formed at the terminal separately of elastic component 62c and 62d from lock part 62e and the 62f that the end side expansion is stretched out.These two lock part 62e and 62f configuration are as leader 62g and 62h, and their outside surface is made of R surface (curved surface) or C surface (inclined-plane).The bottom of lock part 62e and 62f do diameter that injected greater than the second bolster 62a, the first valve plate 5a, second axis hole 54.Next, the notch 54a that lock part 62e and 62f lock on it forms around second axis hole 54.The second bolster 62a is guided and is injected second axis hole 54 by leader 62g and 62h.At this moment, elastic component 62c and 62d make elastic displacement on their approximating directions, are inserted into second axis hole 54 to allow the second bolster 62a whereby, and after lock part 62e and 62f insertion, elastic component 62c and 62d elastic recovery.In this configuration, lock part 62e and 62f are locked to around the lower surface of the notch 54a of second axis hole 54.Disk cartridge 1 can be by lock part 62e and 62f being placed within the notch 54a and is wholely done thinlyyer.As above-mentioned, the second bolster 62a is locked in second axis hole 54 securely by lock part 62e and 62f, makes it can not throw off second axis hole 54 because of the vibrations due to falling etc.Notice that the quantity of elastic component 62c and 62d is not limited to two, and can use three or more elastic component.
Notice that when the second bolster 62a was formed by a kind of resin material, above-mentioned lock part 62e and 62f can form by the end that utilizes ultrasound wave or heat melts elastic component 62c and 62d.Secondly, the second bolster 62a can form to such an extent that be not furnished with line of rabbet joint 62b, that is is not cut apart, then can be it injects second axis hole 54 after with its terminal and formation lock part of ultrasound wave or heat melts.Secondly, the second bolster 62a is arranged at the second valve plate 5b and second axis hole 54 is arranged at the situation of the first valve plate 5a and is described in above example.But, second axis hole 54 can be arranged at the second valve plate 5b and the second bolster 62a can be arranged at the first valve plate 5a.
Secondly, as described among Figure 18, the second bolster 62a is arranged at the seat board part 62i that forms one with second rotational support portions 62.Seat board part 62i is a reinforcing section, is used to strengthen the second bolster 62a and the part on it is set and forms to such an extent that be thicker than other parts.Seat board part 62i is equipped on runner 4 and is thicker than other zones.Thereby, dodge guide groove 46 and be formed at runner 4 to dodge seat board part 62i.
Secondly, shown among Figure 13, first cam portion 64 is formed at the second valve part 61 and the guide groove that engaged by the first control projection 63 that is formed at runner 4 constitutes.The first control projection 63 is engaged in first cam portion 64, to control the rotation of the second valve plate 5b whereby.First cam portion 64 is by the constriction width segments 64a of runner 4 outer peripheries one side and be positioned near runner 4 centers and have that increasing width segments 64b greater than the width of constriction width segments 64a forms.Constriction width segments 64a is first agency part that is used for rotating the second valve plate 5b during the second valve plate 5b opens the preceding half section of first and second apertures 24 and 44.Strengthen width segments 64b as moving, that is the second valve plate 5b opens during later half period of first and second holes 24 and 44 inoperative first agency part not in the first control projection 63.So, constriction width segments 164a rotates the second valve plate 5b open the preceding half section of first and second apertures 24 and 44 at the second valve plate 5b during, and when the first control projection 63 moved to increasing width segments 64b, constriction width segments 64a was inoperative to the second valve plate 5b.
By the way, the first control projection 63 also has the structure that is similar to the above-mentioned second bolster 62a.That is shown among Figure 18, the first control projection 63 is made up of elastic component 63b that forms by line of rabbet joint 63a and 63c, and elastic component 63b and 63c have lock part 63d and the 63e that is formed at its end and stretches out from the end expansion.These lock parts 63d and 63e are provided as leader 63f and the 63g that its outside surface is made of R surface (curved surface) or C surface (inclined-plane).Lock part 63d and 63e form to such an extent that the constriction width segments 64a of first cam portion 64 is wider than in feasible its bottom at least.First cam portion 64 is guided and injected to the first control projection 63 by leader 63f and 63g.At this moment, elastic component 63b and 63c make elastic displacement on their approximating directions, are inserted into first cam portion 64 to allow the first control projection 63 whereby, and after lock part 63d and 63e are inserted into, elastic component 63b and 63c elastic recovery.Under this running, lock part 63d and 63e are around the edge locked of first cam portion 64.As above-mentioned, the first control projection 63 is locked in first cam portion 64 securely by lock part 63d and 63e, make it in addition can not deviate from because of the vibrations due to falling etc. from first cam portion 64 yet.Notice that the quantity of elastic component 63b and 63c is not limited to two, and can use three or more elastic component.
Notice that when the first control projection 63 was to be formed by a kind of resin material, lock part 63d and 63e can form by the end with ultrasound wave or heat melts elastic component 63b and 63c.Secondly, the first control projection 63 can form to such an extent that be not furnished with line of rabbet joint 63a, that is is not cut apart, then can be after it injects first cam portion 64, by forming lock part with ultrasound wave or its end of heat melts.
Secondly, lock part 63d and 63e can form to such an extent that be wider than the constriction width segments 64a of first cam portion 64 as above-mentioned.In disk cartridge 1 time spent not, the first control projection 63 is locked in constriction width segments 64a.Disk cartridge 1 fall and shock effect in it the time, disk cartridge 1 is of no use among record and/or replay device.Say that more specifically vibrations are that it is held by the user and when not being used on record and/or the replay device by dress when putting on disk cartridge 1.So when disk cartridge 1 was not used, it is just enough that lock part 63d and 63e are wider than the first constriction width segments 64a that engage of control projection 63.Self-evident, lock part 63d and 63e can be wider than and be strengthened width segments 64b, so that the first control projection 63 is more impossible from 64 disengagements of first cam portion.
Secondly, shown among Figure 13, the second control projection 66 is formed at the second valve part 61 and is engaged in second cam portion 65 that is made of the guide groove that is formed on the runner 4 first type surfaces part.Second cam portion 65 is made up of the first sweep 65a and the second sweep 65b.The first sweep 65a is bent upwards in the first party of runner 4 centers one side, and the second sweep 65b is bent upwards along the second party relative with the direction of the first sweep 65a in runner 4 outer peripheries one side.The first sweep 65a is second agency part not, open during the preceding half section of first and second holes 24 and 44 inoperative at the second valve plate 5b, and the second sweep 65b is second agency part, works open later half period of first and second apertures 24 and 44 at the second valve plate 5b during.So, the first sweep 65a opens during the preceding half section of the one the second apertures 24 and inoperative at 44 o'clock at the second valve plate 5b, and when the second control projection 66 moves to the second sweep 65b, that is in the later half period that the second valve plate 5b rotates, the second sweep 65b replaces the constriction width segments 64a of the first above-mentioned cam portion 64 to rotate the second valve plate 5b.As above-mentioned, open first and second apertures 24 and at 44 o'clock at the second valve plate 5b, disk cartridge 1 is by utilizing two agency parts that are separated from each other in preceding half section and later half period, prevented because the appearance of the dust of wearing and tearing due to waiting etc.
Notice that first and second agency parts and first and second not agency part can be made of the combination in any that strengthens width segments, constriction width segments and sweep.
Then, the operation of the rotation of runner 4 and a pair of first and second valve plate 5a and 5b is illustrated with reference to Figure 19 and 20.Figure 19 shows the state that a pair of first and second valve plate 5a and 5b close first and second apertures 24 and 44.Close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, runner 4 is rotated and is pushed on the direction of Figure 19 arrow A by the pushing force of thrust piece 48, and part to be driven 45 is positioned at a lateral edges place in first aperture 24.Respectively, the second side edge part 51b of the first valve plate part 51 is engaged in the sloping portion of the second valve plate part, 61 first side edge part 61a, and the sloping portion of the first valve part 51 the 3rd lateral edge portions 51c is engaged in the sloping portion of the second valve part, 61 second side edge part 61b in the opposite direction, thereby dust etc. are prevented from entering inside from coupling part, and the first and second valve plate 5a and 5b impossible deflection when they are depressed.Secondly, first to the 3rd groove 58a to 58c is engaged in first to the 3rd projection 59a to 59c, thereby dust etc. are prevented from entering inside from coupling part.
At this moment, the guide projections 51g of the first valve plate 5a is positioned at an end place at the close runner center of runner 4 guide grooves 55.Secondly, the first control projection 63 is engaged in as constriction width segments 64a first agency part, the second valve plate 5b, first cam portion 64.Secondly, second of the second valve plate 5b control projection 66 is engaged in as the second first sweep 65a agency part, runner 4 second cam portions 65.
When the pushing force that overcomes thrust piece 48 by part 45 to be driven at runner 4 makes it the square rotation of arrow A among Figure 19, its guide projections 51g is engaged in the first valve plate 5a of runner 4 guide grooves 55, and first bolster 52 that centers on upper casing 6 rotates on the direction of arrow B among Figure 19.Along with the rotation of the first valve plate 5a, the second valve plate 5b rotates on the direction of arrow C with respect to the first valve plate 5a around the second bolster 62a of the first valve plate 5a.When the second valve plate 5b began to rotate, it was made it to rotate by the constriction width segments 64a that the first control projection 63 as first agency part of first cam portion 64 and runner 4 engages.Notice that when the second valve plate 5b began to rotate, the second control projection, the 66 first sweep 65a that engage, runner 4 second cam portions 65 of the second valve plate 5b were second agency parts and do not work to rotate valve plate 5b not.
Secondly, when the direction of arrow A was rotated, the guide projections 51g that is engaged in the guide groove 55 of runner 4 shifted to the other end of the guide groove 55 of runner 4 outer peripheries one side at runner 4.When the first valve plate 5a rotated, the second valve plate 5b rotated on the direction of arrow C among Figure 19 with respect to the first valve plate 5a around the second bolster 62a of the first valve plate 5a.Thereby the first control projection 63 of runner 4 is from moving to as the constriction width segments 64a of first agency part as the first increasing width segments 64b of first cam portion 64 of agency part and inoperative to the second valve plate 5b not.The second control projection 66 that replaces the first control projection, 63, the second valve plate 5b from as second not the first sweep 65a of agency part move to as the second sweep 65b of second agency part and in the direction of arrow C and rotate the second valve plate 5b.Because such operation, shown among Figure 20, first and second apertures 24 and 44 are unlocked, thereby the CD 3 that is housed among the runner 4 can expose across its inside and outside periphery.
To utilize Figure 19 and 20 to be illustrated as second bolster 62a of the second valve plate 5b rotating fulcrum and the position relation between the first and second control projections 63 and 66.When second valve plate 56 rotates so that when opening first and second apertures 24 and 44, the first control projection 63 is near the second bolster 62a as the rotating fulcrum of the second valve plate 5b.If want to utilize increasing width segments 64b to rotate the second valve plate 5b, because being positioned at first, bolster 62a controls near the projection 63, so just need very big driving force.In order to handle above problem, in the later half period of the second valve plate 5b rotating operation, do not utilize the first control projection 63, and the second control projection 66 is engaged in the second sweep 65b as second agency part of second cam portion 65, will separate as the position of the second bolster 62a of the second valve plate 5b rotating fulcrum and position whereby, make the second valve plate 5b can make it rotation by faint driving force as the second control projection 66 of drive point.
Incidentally, shown among Figure 19 and 20, locking mechanism 71 is arranged in the disk cartridge main body 2 and keeps the first and second valve plate 5a and 5b to close the state of first and second apertures 24 and 44 with the rotation by regulation and control runner 4.Specifically, shown among Figure 19,20 and 21, locking mechanism 71 has locking piece 72, is used to lock runner 4.Locking piece 72 has body portion 73, is formed at body portion 73 and be formed at the axis hole 75 that the bolster 74 of lower casing 7 inside surfaces inserts wherein.Secondly, lock part 76, unlock piece 77, rotation regulation and control part 78 and locking piece 79 all are formed at body portion 73.The rotation of lock part 76 locking runners 4, unlock piece 77 with noting down and/or the plug-in mounting pilot pin 88 of replay device latch is pushed, rotate the rotation of regulation and control part 78 regulation and control body portions 73, and an end of thrust piece 82 is locked to locking piece 79 by also.Locking piece 72 is arranged near the plug-in mounting guide groove 25b of mating holes 26b one side that is formed on lower casing 7 rear face.Locking piece 72 is secured to lower casing 7 by axis hole 75 being fitted on lower casing 7 bolsters 74.
Notice that when locking piece 72 was secured to bolster 74, the end of bolster 74 also stretched out from body portion 73.The end of the bolster 74 that stretches out is engaged in and is arranged at holding axle bed 86 and preventing that locking piece 72 from deviating from from bolster 74 of upper casing 6, even because of vibrations due to falling etc. are applied thereto, that is the fastness of bolster 74 is strengthened.
As shown in figure 21, the lock part 76 of locking piece 72 is towards inside, and unlock piece 77 is seated in the plug-in mounting guide groove 25b from the eyelet 8 of dodging that is formed at the upright wallboard that constitutes plug-in mounting guide groove 25b.Secondly, rotate regulation and control part 78 against the boss 22 that is connected in upright wallboard to regulate and control the rotation of locking piece 72 whereby.
Attaching pin 83 is formed near the bolster 74 of locking piece 72 attachings on it, and is secured to attaching pin 83 with urge lock part 72 in one direction such as such thrust pieces 82 such as torsion-coil springs.The spiral part of thrust piece 82 is set in attaching pin 83.An armed lever that is secured to the thrust piece 82 of thrust piece 82 partly is locked in boss 22, its other end is locked in the locking piece 79 of locking piece, and thrust piece 82 is placed in urge lock part 72 on the direction of arrow D among Figure 19 of lock-out state at locking piece 72, makes unlock piece 77 be positioned at the open end of plug-in mounting guide groove 25b.
The lock part 76 of body portion 73 is positioned within runner 4 outer peripheries slightly.Locking guide groove 84 is formed at runner 4, is positioned at slightly within its outer periphery, and is engaged in locking guide groove 84 from the lock part 76 that body portion 73 stretches out.Locking guide groove 84 has the locking notch 85 that is formed at its inboard.Because the upside of locking notch 85 is to be formed by vertical haply wallboard, when runner 4 trends towards arrow A among Figure 19 and rotates, locks the vertical wall portion of notch 85 closing lock parts 76 and be engaged in lock part 76 securely.Lock part 76 is engaged in locking notch 85 to lock the rotation of runner 4 whereby.Shown among Figure 22, locking guide groove 84 is formed on the surface that puts CD 3 of runner 4, be positioned at be formed at annular section 43 bottom parts, below the sloping portion 42 at outer periphery edge of supporting CD 3, make locking guide groove 84 not have unnecessary wall thickness part.
Notice that locking piece 72 is to be formed by a kind of resilient material with good sliding, makes it have very little frictional resistance for lower casing 7 and bolster 74.
When the state of closing first and second apertures 24 and 44 at the first and second valve plate 5a and 5b utilized Figure 19 to be illustrated, locking piece 72 was pushed by the pushing force of thrust piece 82 on the direction of arrow D among Figure 19 around bolster 74.At this moment, lock part 76 is engaged in the locking notch 85 that is formed on locking guide groove 84 inboards.So the rotation of runner 4 is subjected to being engaged in the choke suppress of the lock part 76 that locks notch 85.At this moment, even applied the strength that is used for such as forcing runner 4 to rotate in contrast to arrow D, strength also is to put on lock part 76 so that lock part 76 proceeds to locking notch 85 on the direction of arrow D.So locking piece 76 can lock the rotation of runner 4 securely.
Secondly, shown among Figure 23, unlock piece 27 is arranged in the front surface opened end of plug-in mounting guide groove 25b from dodging eyelet 80, thereby with noting down and/or the plug-in mounting pilot pin 88 of the latch of replay device can be urged.Specifically, the lower surface of plug-in mounting guide groove 25b is opened wide in its front surface one side.The position of unlock piece 77 than the end face 87 of plug-in mounting guide groove 25b lower surface more near the front surface end, thereby with noting down and/or the plug-in mounting pilot pin 88 of the latch of replay device can be urged.Because unlock piece 77 is positioned among the plug-in mounting guide groove 25b, it is improper to prevent to operate.
When disk cartridge 1 was inserted into record and/or replay device, latch entered plug-in mounting guide groove 25b, shown among Figure 24.With note down and/or the plug-in mounting pilot pin 88 of the latch of replay device when the front surface open end enters plug-in mounting guide groove 25b, at first, plug-in mounting pilot pin 88 pushing unlock pieces 77 then are posted by as the end face 87 of regulation and control part with the lower surface of regulation and control plug-in mounting pilot pin 88 plug-in mounting positions.Simultaneously, plug-in mounting pilot pin 88 also enters plug-in mounting guide groove 25a.Unlock piece 77 is by 88 pushings of plug-in mounting pilot pin, till plug-in mounting pilot pin 88 reclines as regulation and control end face 87 partly.Thereby shown among Figure 19, the pushing force that locking piece 72 overcomes thrust piece 82 is rotated in contrast to the arrow D among Figure 19 around bolster 74.So locking notch 85 releasings in lock part 76 and the locking guide groove 84 connect when being incorporated in runner 4 rotations mobile among locking guide groove 84.
Dispose be installed on record and/or the replay device as above-mentioned disk cartridge 1 before, under the state shown in it is among Fig. 1,2 and 19.That is, described the first and second valve plate 5a and 5b are closed first and second apertures 24 and at 44 o'clock, runner 4 is rotated on the direction of arrow D among Figure 19 and is pushed by the pushing force of thrust piece 48, and first aperture 24 of lower casing 7 does not overlap with second aperture 44 of runner 4.Secondly, part 45 to be driven is positioned at a lateral edges place in first aperture 24.Shown among Figure 11, the engaging groove 45c of part 45 to be driven prevents that together with being formed near runner 4 second apertures 44 engaging grooves 50 the first valve plate 5a from fluctuating.Secondly, respectively in the opposite direction, the second side edge part 51b of the first valve part 51 is engaged in the ramp portion of the second valve part, 61 first side edge part 61a, and the ramp portion of the first valve part 51 the 3rd lateral edge portions 51c is engaged in the ramp portion of the second valve part, 61 second side edge part 61b.That is disk cartridge 1 is engaged with each other by the first and second valve plate 5a and 5b and can not deflection and distortion, and the come-up of the first valve plate 5a prevented, thereby is prevented from entering disk cartridge main body 2 such as foreign matters such as dusts.Secondly, first to the 3rd groove 58a to 58c and first to the 3rd projection 59a to 59b are engaged with each other, thereby dust etc. are prevented from entering the inside from coupling part.
At this moment, the guide projections 51g of the first valve plate 5a is positioned at the end place near its center of runner 4 guide grooves 55.In first cam portion 64 of second valve plate 56, the first control projection 63 is engaged in the constriction width segments 64a as first agency part.Secondly, second of the second valve plate 5b control projection 66 is engaged in the second first sweep 65a of agency part not as runner 4 second cam portions 65.Under this structure, in disk cartridge 1, first aperture 24 of lower casing 7 is closed, shown among Fig. 2.Even the first valve plate 5a pressurized, the CD 3 interior periphery sides non-signal record zone because the regulation and control projection 51h of the first valve plate 5a reclines and the first valve part 51 does not contact the signal record zone of CD 3 is so the signal record zone can prevent to be swiped.
Close first and second apertures 24 and at 44 o'clock at the first and second valve plate 5a and 5b, runner 4 is lifted to lower casing 7 by the lifting device 14 of upper casing 6, and the projection 27 that is formed at first aperture, 24 periphery edges is engaged in the guide groove part 51f of the first valve part 51, thereby dust etc. are prevented from entering disk cartridge main body 2.
For explanation locking mechanism 71, shown among Figure 19, locking piece 72 is pushed on the direction of arrow D among Figure 19 around bolster 74 by the pushing force of thrust piece 82.At this moment, lock part 76 is engaged in the locking notch 85 of locking guide groove 84.So the rotation of runner 4 gives choke suppress by the lock part 76 that is engaged in locking notch 85.Even applied the strength that is used for such as forcing runner 4 to rotate in contrast to arrow D, strength also puts on lock part 76 on the direction of arrow D so that lock part 76 proceeds to locking notch 85.So locking piece 72 can lock the rotation of runner 4 securely.
Secondly, shown among Figure 23, unlock piece 77 is arranged in the front surface opened end of plug-in mounting guide groove 25b from dodging eyelet 80, thus with note down and/or replay device on the plug-in mounting pilot pin 88 of latch can be pushed.Specifically, the lower surface of plug-in mounting guide groove 25b is opened wide in guide groove front surface one side.Unlock piece 27 is than the end face 87 more close front surface ends of plug-in mounting guide groove 25b lower surface, thereby with noting down and/or the plug-in mounting pilot pin 88 of the latch of replay device can push.
When disk cartridge 1 was not used as mentioned above, when the user injects record and/or replay device with it or when the user holds it, he or she may fall disk cartridge 1 owing to slip up.Even because of the shock effect due to falling in disk cartridge 1, the first and second valve plate 5a and 5b can prevent that also the second bolster 62a from deviating from from second axis hole 54, be locked in second axis hole 54 because be arranged at lock part 62e and the 62f of the second bolster 62a like that shown among Figure 16.Secondly, because being locked in first cam portion, 64, the first control projections 63, lock part 63d and 63e can prevent that also the first control projection 63 is from 64 disengagements of first cam portion.Secondly, the robustness of the second bolster 62a is strengthened by seat board part 62i.So, even disk cartridge 1 is fallen shock effect in it because of error, can prevent following various faults, promptly the first and second valve plate 5a and 5b can not open, and the gap is formed between them, and they are impaired etc.
Dispose to such an extent that utilize its front surface that forms arc haply to be inserted into record and/or reproducer as insertion end as above-mentioned disk cartridge 1.When disk cartridge 1 was inserted into record and/or replay device, at first, a pair of plug-in mounting pilot pin 88 that is formed at record and/or replay device mounting portion was inserted into.Because the open end of plug-in mounting guide groove 25a and 25b is manufactured the most widely shown among Fig. 7, so they direct into disk cartridge 1 precalculated position of mounting portion reliably.Secondly, when the width setup in the deepest part of plug-in mounting guide groove 25a and 25b got and equates with the thickness of plug-in mounting pilot pin haply, disk cartridge 1 can accurately be contained in by means of plug-in mounting pilot pin 88 and write down and/or the pre-position of reproducer mounting portion.
Shown among Figure 25, when disk cartridge 1 was installed on the mounting portion of record/playback apparatus, each plug-in mounting pilot pin 88 was engaged in pilot hole 26a and mating holes 26b.Pilot hole 26a is a benchmark eyelet when disk cartridge 1 is installed, and mating holes 26b then is one and adjusts eyelet.When disk cartridge 1 was inserted into record and/or replay device, the pushing force that the unlock piece 77 of locking piece 72 must overcome thrust piece 82 was pushed.So unlock piece 77 is arranged at the plug-in mounting guide groove 25b that adjusts mating holes 26b one side, makes and in the mounting portion, to finish the location more accurately.
When disk cartridge 1 is contained on the mounting portion, enters plug-in mounting guide groove 25b and at first push then the recline end face 87 of lower surface of unlock piece 77 from the front surface open end as the latch of plug-in mounting pilot pin 88.Unlock piece 77 is by plug-in mounting pilot pin 88 pushing as latch, until the latch end face 87 that reclines.Thereby, shown among Figure 19, the pushing force that locking piece 72 overcomes thrust piece 82 around bolster 74 in contrast to Figure 19 among the direction of arrow D be rotated.So lock part 76 is removed with the locking notch 85 of locking guide groove 84 and is engaged, thereby runner 4 is freely rotated.
When disk cartridge 1 is installed on the record and/or the mounting portion of replay device, runner 4 is overcome thrust piece 48 by part 45 to be driven pushing force direction of arrow A among Figure 19 makes it to rotate, and the first valve plate 5a that its guide projections 51g is engaged in runner 4 guide grooves 55 rotates on the direction of arrow B among Figure 19 around first bolster 55 of upper casing 6.Along with the rotation of the first valve plate 5a, the second valve plate 5b rotates on the direction of arrow C among Figure 19 around the second bolster 62a of the first valve plate 5a with respect to the first valve plate 5a.When the second valve plate 5b began to rotate, it was made it to rotate by the constriction width segments 64a of first cam portion 64, and the latter engages as the first control projection 63 of first agency part and runner 4.Notice that when the second valve plate 5b began to rotate, the second control projection of the second valve plate 5b was 66 that engage, the first sweep 65a of runner 4 second cam portions 65, as second not agency part the rotation of second valve plate is not worked.
Secondly, when the direction of runner 4 arrow A among Figure 20 was rotated, the guide projections 51g that is engaged in runner 4 guide grooves 55 shifted to the other end of the guide groove 55 of runner 4 outer peripheries one side, shown among Figure 20.Along with the rotation of the first valve plate 5a, the second valve plate 5b rotates on the direction of arrow B among Figure 20 around the second bolster 62a of the first valve plate 5a with respect to the first valve plate 5a.Thereby, the first control projection 63 of runner 4 from the constriction width segments 64a as first agency part of first cam portion 64 shift to as first not agency part increasing width segments 64b and the second valve plate 5b is not worked.The second control projection 66 that replaces the first control projection, 63, the second valve plate 5b from as second not the first sweep 65a of agency part shift to as the second sweep 65b of second agency part and among Figure 20 the direction of arrow C rotate the second valve plate 5b.Under such operation, part 45 to be driven is positioned among the part that its width strengthened by first aperture, 24 ramp portion 24c, first and second apertures 24 and 44 are unlocked shown among Figure 26, thereby the light box 3 that is housed among the runner 4 can expose across its inside and outside periphery.
In the second half section of rotating operation, by making the second control projection 66 be engaged in the second sweep 65b of second agency part that is used as second cam portion 65 and not utilize the first control projection, 63, the second valve plate 5b to be rotated by faint driving force near the second bolster 62a that is used as the second valve plate 5b rotating fulcrum away from the second bolster 62a.Secondly, when the first and second valve plate 5a and 5b are rotated, in preceding half section with utilize each agency part separated from one another during the later half period respectively.As a result, can be prevented from being formed within the disk cartridge main body 2 such as such dust of abrasion powder etc. owing to what the rotation of the first and second valve plate 5a and 5b produced.
The central aperture 3a that is housed in the CD 3 among the runner 4 rotationally is engaged in the dish pedestal of record and/or replay device dish rotating drive mechanism, and CD 3 is clamped between the clamping plate 13 that are arranged at upper casing 6 and the dish pedestal, thereby CD 3 can be made it to rotate by the dish pedestal.
Be recorded on the CD 3 or be recorded in information signal on the CD 3 at information signal by playback time, CD 3 by the dish pedestal with CLV (constant linear velocity), CAV (constant angular velocity) or to make it rotation by the speed that their combinations are obtained.Simultaneously, be transmitted into light beam information recording area, that have about 400nm wavelength of CD 3 from semiconductor laser, shine the signal recording surface of CD 3 by object lens meeting coalescence.Then, the optical pickup that enters first and second apertures 24 and 44 detect by signal recording surface reflection and the light beam that returns and with information signal recording on the CD 3 or the information signal of playback record on CD 3.
Notice that when disk cartridge 1 was discharged, runner 4 rotated and turn back to from the state of Figure 20 the state of Figure 19 on the direction of arrow A among Figure 20 from record and/or reproducer.Locking notch 85 is moved and is engaged in the lock part 76 of locking piece 72 among locking guide groove 84, thereby first and second apertures 24 and 44 turn back to closing state.
Then, another example of using disk cartridge of the present invention is illustrated with reference to drawing.Using disk cartridge of the present invention is a kind of less disk cartridge, it also can be housed in be disclosed among the Japanese Unexamined Patent Application publication NO.2003-109343, use on the record and/or replay device of standard size disk cartridge.Being disclosed in disk cartridge among the Japanese Unexamined Patent Application publication NO.2003-109343 uses and has the CD of about 12cm diameter as recording medium, use a kind of CD and use disk cartridge of the present invention, the diameter that has is less than the diameter of the CD of standard size disk cartridge.Because using disk cartridge of the present invention forms with reduced size and uses its diameter less than the diameter that is disclosed in the disk cartridge CD among the Japanese Unexamined Patent Application publication NO.2003-109343, be very good aspect portability, though its recording capacity is less than the standard size disk cartridge.
Shown among Figure 27 to 29, use disk cartridge 101 of the present invention is put runner 104 and is used as valve mechanism in disk cartridge main body 102 a pair of first and second valve plate 105a and the 105b, and CD 103 is housed among the runner 104.Disk cartridge main body 102 is to form by a cover upper casing 106 and the lower casing 107 of the combination mutually of fitting each other.
The CD 103 that is used among the disk cartridge 101 has the central aperture 103a that is formed on the center, and the dish rotating drive mechanism of record and/or replay device is engaged in central aperture 103a.Notice that CD 103 can be a kind of formula CD of only resetting, have according to there being information signal to be recorded to be formed on the suprabasil pit pattern of dish; A kind of CD-RW is used phase-change material in recording layer; Perhaps another Write once optical disc uses organic coating in recording layer.Secondly, except CD, magneto-optic disk, disk etc. can be used as stand-by recording medium, and can use cleaning deskitte in addition.
Shown among Figure 30, the upper casing 106 that constitutes disk cartridge main body 102 forms by the injection molding resin material.The first type surface integral body of upper casing 106 forms rectangular shape haply, and the front surface of first type surface, plug-in mounting end one side as for record and/or replay device forms roughly arcuate shape.Secondly, outer periphery wallboard 108, the side surface of formation disk cartridge main body 102, the outer periphery edge that centers on upper casing 106 first type surfaces erectly forms.
First pickup apparatus enters notch 109 and is formed at outer periphery wallboard 108 in the center of front surface, makes the optical pickup of record and/or replay device enter wherein.Secondly, be formed with the boss 110 of screw above a plurality of, be formed near outer periphery wallboard 108 each corners to connect lower casing 107 by screw.
Haply Huan Xing interior periphery wallboard 111 interior periphery that is formed at outer periphery wallboard 108 with within connect, and runner 104 is housed within the interior periphery wallboard 111 rotationally.Second pickup apparatus enters notch 112 and is formed at interior periphery wallboard 111 in its front surface center, makes the optical pickup of record and/or replay device enter wherein.Guiding wallboard when runner 104 rotations put runner 104 wherein and be used as rotationally by inner all wooden partition plates 111.When putting runner 104, the first type surface of upper casing 106 part has constituted dish together with runner 104 and has put portion.
The approximate centre that clamping plate 113 are secured to upper casing 106 inside surfaces with together with constitute record and/the dish pedestal of the dish rotating drive unit of replay device clamps CD 103.Clamping plate 113 give attaching by attaching ring 113a.Specifically, clamping plate 113 attaching as follows, promptly it is clamped at attaching ring 113a and haply between the center of upper casing 106 inside surfaces, and attaching ring 113a waits the center of upper casing 106 inside surfaces haply that is fixed in by welding.CD 103 can freely rotate in CD is put portion with a kind of like this structural arrangements, makes the dish pedestal be engaged in the also other CD 3 of central aperture 103a and is clamped between dish pedestal and the clamping plate 13.
Note, constitute the upright wallboard 116a of lower casing 107 pilot hole 126a and the upright wallboard 116b of formation mating holes 126b, will be described after a while, be formed at the inside surface of upper casing 106 in addition.
Shown among Figure 28,29 and 31, lower casing 107 is connected in configuration as above-mentioned upper casing 106, equally with above-mentioned upper casing 106 is formed by the injection molding resin material.Lower casing 107 integral body have the first type surface of rectangular shape haply, and reeve record and/or front surface replay device, first type surface form arcuate shape haply.The outer periphery wallboard 121 that constitutes disk cartridge main body 102 side surfaces erectly forms around the outer periphery edge of first type surface, and interior periphery wallboard 128 make in connect outer periphery wallboard 121.
First aperture 124 forms by the core of opening outer periphery wallboard 121 front surfaces, makes optical pickup and dish pedestal to enter wherein.First aperture 124 is by the optical pickup aperture 124a and the device of rotation driving aperture 124b of rectangle form haply, optical pickup aperture 124a exposes across its inside and outside periphery from the open end of 124 front sides, first aperture part with CD 103 signal recording surfaces, and device of rotation driving aperture 124b exposes the central aperture 103a of CD 103, and this aperture successively is formed at optical pickup aperture 124a.The size that optical pickup aperture 124a forms is enough to make the optical pickup of record and/or replay device to enter disk cartridge main body 102, and the size that device of rotation driving aperture 124b forms is enough to that dish pedestal-formations write down and/or the dish rotating drive mechanism of replay device-enter disk cartridge main body 102.Secondly, sloping portion 124c is formed at one of open end of optical pickup aperture 124a, so that the direction of widening at open end tilts.Sloping portion 124c is the part to be driven 145 at the runner 104 that will be described after a while when being positioned at the first and second valve plate 105a, 105b and opening the position in first aperture 124, puts the part of part 145 to be driven.
A plurality of projections 127 be formed at constitute separately first aperture 124, one of recording/reproducing aperture 124a lateral edge portions and one of device of rotation driving aperture 124b lateral edges, when a pair of first and second valve plate 105a and 105b close first and second apertures 124, enter disk cartridge main body 102 to prevent dust etc.
Secondly, the boss 122 that is formed with through hole on some its is formed on outer periphery wallboard 121 rear face so that be shaped on each boss 110 of screw on its of the upper casing 106 that reclines.Shown among Figure 28 and 29, upper casing 106 inserts screw 123 and its screw that is screwed into upper casing 106 each boss 110 is connected in lower casing 107 by the through hole from lower casing 107 each boss 122.
Secondly, plug-in mounting guide groove 125a and 125b are formed on the front surface of lower casing 107 both sides, and when disk cartridge 101 injected record and/or replay device, the plug-in mounting guide member of record and/or replay device was engaged in plug-in mounting guide groove 125a, 125b.Guide groove 125a, 125b do the most widely at its front surface opened end place, make the plug-in mounting pilot pin to enter wherein easily.
Secondly, shown in Figure 28 and 31, pilot hole 126a be formed on lower casing 107 rear face near one of lower casing 107 each corner and as disk cartridge 101 is positioned and be installed in write down and/or replay device on the benchmark eyelet.Secondly, adjusting mating holes 126b is formed near another corner.
Note, shown among Figure 27 and 28, each guide groove 115 that when disk cartridge main body 102 is inserted into record and/or replay device, is used to guide disk cartridge main body 102, be formed on two side surface parts of the disk cartridge main body of being made up of against each other upper casing 106 and lower casing 107 102, two side surface are parallel to the direction that disk cartridge main body 102 injects record and/or replay device.
When upper casing 106 was posted by lower casing 107, the portion of putting that wherein puts runner 104 was formed on interior periphery wallboard 111 inboards.Shown in Figure 32 and 33, the runner 104 that is housed among the portion of putting forms by the injection molding resin material.The first type surface of runner 104 forms roughly writing board shape, and when a side of its trough of belt mouth is arranged among the disk cartridge main body 102, dish put portion by upper casing 106 and the first and second valve plate 105a and 105b the two one of first type surface form.Runner 104 forms circle haply, and annular section 143 erectly forms around its outer periphery edge.Second aperture 144, the same big with first aperture 124 that is formed at lower casing 107 haply, be formed at the first type surface of runner 104.
When overlapping with first aperture 124 of lower casing 107 in second aperture 144, the CD of putting 103 exposes.That is second aperture 144 is by forming corresponding to the aperture of first aperture, 124 optical pickup aperture 124a with corresponding to the aperture of its device of rotation driving aperture 124b.Secondly, second aperture 144 so forms, so that widen gradually from the center to the outer periphery to absorb the error between it and first aperture 124, makes the aperture 124 of winning not reduce size because of the foozle and the alignment error of runner 104.Form to such an extent that make outward-dipping about 1 ° of one of two lateral edges or the two such as, second aperture 144.
Secondly, the ramp portion 142 that partly tilts to first type surface is formed at the bottom part of annular section 143.Ramp portion 142 comes the outer periphery edge of supporting CD 103 to touch by forming edge contact with CD 103 outer periphery edges, and the signal recording surface of CD 103 contacts with the first type surface face of runner 104, thereby signal recording surface is not swiped.
Shown in Figure 33 and 34, part 145 to be driven is formed near second aperture 144 of runner 104 and is protruding, and the valve that constitutes the valve plate opener of record and/or replay device is opened pin 141 and is engaged in part 145 to be driven.Part 145 to be driven has first to be driven 145a and second to be driven 145b, and they can be opened the record and/or replay device one side of part 145 to be driven and form a notch, and record/and or the valve of replay device open pin 141 and be engaged in notch.First to be driven 145a is that valve is opened pin 141 parts that will recline when runner 104 rotates on the first and second valve plate 105a and 105b open the direction of first and second apertures 124 and 144.Simultaneously, second to be driven 145b is that valve is opened pin 141 parts that will recline when runner 104 rotates on the first and second valve plate 105a and 105b close the direction of first and second apertures 124 and 144.
When runner 104 rotates, dispose form the lower casing 107 on it from first aperture 124 as above-mentioned part to be driven 145 front surface expose and the Width in first aperture 124 moves.When the first and second valve plate 105a and 105b opened first aperture 124, part 145 to be driven was positioned within the part of being widened by sloping portion 124c.
Dispose as above-mentioned runner 104 in, the first and second valve plate 105a and 105b are pushed by the thrust piece 148 that will be described after a while on first and second apertures 124 and 144 pent directions, and part to be driven 145 is opened pin 141 by the record and/or the valve of replay device and opened at the first and second valve plate 105a and 105b on the direction of first and second apertures 124 and 144 and make it to rotate.Guiding wallboard when at this moment, interior periphery wallboard 111 rotates as runner 104.
Shown among Figure 34, among a pair of first and second valve plate 105a and 105b, the two is configured for the valve plate mechanism that opening and closing are formed at first aperture 124 of lower casing 107 and are formed at second aperture 144 of runner 104, the first valve plate 105a does greatlyyer, and the second valve plate 105b does less than the first valve plate 105a.
The first bigger valve plate 105a comprises the first valve part, 151, the first rotational support portions 153, and second axis hole 154.The first valve part 151 is closed first and second apertures 124 and 144, first rotational support portions 153 is by being formed on outer periphery wallboard 108 on upper casing 106 inside surfaces and first bolster, 152 rotatably supports between the interior periphery wallboard 111, and the second less valve plate 105b is secured to axis hole 154.
The first valve part 151 comprises first side edge part 151a, is positioned at a lateral edges place in runner 104 second apertures 144 when being closed in second aperture 144; Second side edge part 151b is connected in first side edge part 151a and forms; And the 3rd lateral edge portions 151c, be connected in second side edge part 51b and form.Second side edge part 151b bends in the edge part 151a of first side and forms, and the 3rd lateral edge portions 151c forms from second side edge part 151b excurvation.Secondly, four side edge part 151d in the face of first to the 3rd lateral edge portions 151a to 151c, as dodging part 151e, prevent part etc. so that dodge boss 110 and 122, pilot hole 126a, the error logging of the corner that is formed at upper and lower shell 106 and 107.Second side edge part 151b and the 3rd lateral edge portions 151c are made of the ramp portion on the relative direction.
Secondly, guide groove part 151f is formed on the surface of lower casing 107 1 sides of the first valve part 151 and is engaged in the projection 127 that is formed at lower casing 107 first apertures 124 periphery edges part.Close first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, guide groove part 151f is engaged in the projection 127 that is formed at first aperture, 124 periphery edges part and enters disk cartridge main body 102 to prevent dust etc.
Secondly, the first and second regulation and control projection 151h and 151g are formed on the surface of CD 103 1 sides of the first valve part 151, to regulate and control the displacement of the first valve plate 105a.Close first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, the first and second regulation and control projection 151h and 151g are arranged at corresponding to the position around the non-signal record of the interior periphery side zone of CD 103 central aperture 103a.So, even the first valve plate 105a pressurized and to internal strain, do not swiped in the signal record zone of CD 103 yet.Open first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, the first and second regulation and control projection 151h and 151g enter and dodge guide groove 155 and 156, the latter is positioned near the center of runner 104 and their second aperture, 144 1 sides are opened wide, and the rotation of the valve plate 105a that wins is not disturbed mutually with the first and second regulation and control projection 151h and 151g.These dodge guide groove 155 and 156 also is the guide groove at the band end and separates in the relative side of a side of putting CD 103 with it with runner 104, to prevent since first and second regulate and control that projection 151h and 151g and contacting of runner 104 etc. produce enter the space of putting CD 103 such as foreign matters such as abrasion powders.Notice that the moving of the first valve plate 105a can be regulated and control projection by any one and be regulated and control.
Secondly, driving projection 151i is formed at the first valve part 151 and is engaged in the driving guide groove 149 that is formed at runner 104 first type surfaces.Driving guide groove 149 is the guide grooves at a band end and prevents to enter the runner 104 of putting CD 103 such as foreign matters such as abrasion powders.When runner 104 rotates, drive projection 151i and rotate the first valve plate 105a.Drive guide groove 149 and have the first agency part 149a not, be formed on the position that when the first valve plate 105a closes first and second apertures 124 and 144, drives projection 151i place, that is be formed on an end place of driving guide groove; Agency part 149b forms to such an extent that be connected in the first agency part 149a not; And the second agency part 149c not, be formed on the position that when the first valve plate 105a opens first and second apertures 124 and 144, drives projection 151i place, that is, be formed on the other end place of this guide groove guide groove.First and second agency part 149a and 149c can not drive projection 151i and are not contacted with guide groove and formed by coinciding with or be wider than to drive the track of projection 151i when runner 104 rotates and make.And agency part 149b can be formed by not coinciding with the track that drives projection 151i.Be positioned at first and second not during the position of agency part 149a and 149b driving projection 151i, just runner 104 rotates and the first valve plate 105a does not rotate.At this moment, first and second not agency part 149a and 149c can realize the attitude control function, prevent the vibration of the first valve plate 105a etc.
So, when the first valve plate 105a begins to rotate, the record and/or the driving force of replay device valve opener only need be used to overcome the driving force of thrust piece 148 rotating wheels 104 and be used to remove near be formed on runner 104 second apertures 144 the first projection 159a and the driving force of the engagement state of the first valve plate 105a, the first groove 158a, and do not need to be used to rotate the driving force of the first valve plate 105a, thereby can reduce total driving force.Secondly, second not agency part 149c form to such an extent that absorb the error of runner 104 amounts of spin, and be positioned at second not during the position of agency part 149c driving projection 151i, runner 104 rotates, and the first valve plate 105a does not rotate.
First rotational support portions, 153, the first axis hole 153a that one cylindrical part is formed at the first valve plate 105a are formed on the center of cylindrical part, and are formed at first bolster, 152 reeves, the first axis hole 153a of upper casing 106.So the first valve plate 105a is secured to upper casing 106 rotationally and rotates on runner 104.Note, the first valve plate 105a can by one replace first bolster 152, be formed at the bolster of lower casing 7 as pivot.
The valve plate 105a that is secured to upper casing 106 first bolsters 152 rotationally is connected in runner 104 via the thrust piece 148 that is made of volute spring etc.Thrust piece 148 the first and second valve plate 105a and 105b close first and second apertures 124 and 144, rotate and pushing runner 104 on the direction of arrow A among Figure 35.Shown among Figure 35, thrust piece 148 1 ends are locked in the locking piece 148a that is formed at runner 104 annular sections 143, and the other end is locked near the locking projection 148b that is formed on the first valve plate 105a, first rotational support portions, the 153 first axis hole 153a.Thrust piece 148 is locked in the locking projection 148b of the first valve plate 105a, first rotational support portions 153 that is secured to upper casing 106 first bolsters 152 rotationally and the locking piece 148a of runner 104, thus thrust piece 148 with case of bending along the 143 outer periphery settings of runner 104 annular sections.Thrust piece 148 usually the first and second valve plate 105a and 105b close first and second apertures 124 and 144, pushing and rotating wheel 104 on the direction of arrow A among Figure 35, and thrust piece 148 is stretched when rotating wheel 104 on first and second apertures 124 and 144 directions that are unlocked.
Notice that the locking projection 148b that is formed at the first valve plate 105a, first rotational support portions 153 is formed near the first axis hole 153a, that is is formed near the rotating fulcrum.In this configuration, an arching trajectory that draws when the first valve plate 105a rotates has less radius, and this can prevent that locking projection 148b from colliding the outer periphery wallboard 108 and 121 etc. of upper and lower shell 6 and 7.
By the way, shown among Figure 34 and 35, first deviates to prevent that locking mechanism 131 is arranged at the first valve plate 105a and runner 104, throws off from the first type surface of runner 104 to prevent the first valve plate 105a.First deviates to prevent that locking mechanism 131 comprises deviates to prevent projection 132 and deviate to prevent guide groove 133.Deviate to prevent that projection 132 is formed at the protrusion 132a that first rotational support portions 153 of the contiguous first valve plate 105a forms, and deviate to prevent that guide groove 133 is formed on the first type surface of runner 104, from the inboard of runner to outer periphery.
Shown among Figure 34 and 35, deviate to prevent that projection 132 has to break away from prevents part on the first valve plate 105a, one side, form so that swell from the end that forms the axial region 132b of one with protrusion 132a.On the contrary, shown among Figure 32,33 and 35, the guide groove 133 of deviating to prevent that is formed at runner 104 first type surfaces forms to such an extent that roughly be opposite to part 145 to be driven, its outer periphery part from the centre part to outer periphery part by open-minded.Deviate to prevent that guide groove 133 has the open end of a broad, make and deviate to prevent that projection 132 from can enter wherein easily.Secondly, shown among Figure 36, deviate to prevent that guide groove 133 from being groove, and thin-walled portion 133a is formed on the both sides of groove in CD 103 installation surface one side.Thereby the disengagement of deviating to prevent projection 132 prevents part 132c and is engaged in each thin-walled portion 133a to prevent disengagement.The groove width W1 that deviates to prevent guide groove 133 forms greater than the diameter W2 that deviates to prevent projection 132 axial region 132b that remains to be injected guide groove, make and deviating to prevent that projection 132 from entering when deviating to prevent guide groove 133, axial region 132b not with two end face 133b that deviate to prevent guide groove 133, that is not on its Width with deviate to prevent that guide groove 133 from forming and contact.In this configuration, deviate to prevent that projection 132 from not contacting with deviating to prevent guide groove 133 formation, thereby can be prevented from generation in the disk cartridge main body 102 such as foreign matters such as abrasion powders.Secondly, the depth D of each thin-walled portion 133a is set at D＞T, make it prevent the thickness T of part 132c greater than disengagement, thereby CD 103 is prevented from preventing that with disengagement part 132c from contacting.Close first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, each thin-walled portion 133a prevents to throw off and prevents that part 132c from protruding in CD 103 1 sides.
Close first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, deviate to prevent that projection 132 is engaged in deviates to prevent that guide groove 133 from throwing off from the first type surface of runner 104 to prevent the first valve plate 105a.This be because, the first and second valve plate 105a and 105b close first and second apertures 124 and 144 do not use the period during, the first valve plate 105a may be because of the first type surface disengagement of the huge vibrations runner 104 that acts on it.
Secondly, the first and second valve plate 105a and 105b are the members that is interposed between runner 104 and the lower casing 107, and the projection 132 of deviating to prevent that is formed at the first valve plate 105a, first rotational support portions 153 is stretched to runner 104 1 sides, i.e. upper casing 106 1 sides.Shown among Figure 29,31 and 37, each lifting device 135 is formed on the inside surface of lower casing 107, with the first valve plate 105a deviate to prevent projection 132 enter runner 104 deviate to prevent guide groove 133 time first valve plate 105a is lifted to runner 104 1 sides.Each lifting device 135 is made of each the ramp portion 135a that is formed on its runner 104 1 sides, so that the first valve plate 105a of lifting gently.
Notice that shown among Figure 35, the annular section 143 of runner 104 has near the stop part of deviating to prevent the guide groove 133 along peripheral direction formation 134.Shown among Figure 35, close first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, first rotational support portions 153 of the first valve plate 105a is positioned to be deviate to prevent near guide groove 133 open ends, and thrust piece 148 stretches out.So the thrust piece 148 that extends along annular section 143 may disturb with it mutually deviating to prevent that projection 132 from advancing with leaving when deviating to prevent guide groove 133.When stretching and shrink, thrust piece 148 controls its sideslip along the stop part 134 that annular section 143 outer peripheries form.
Note, drive projection 151i and contact with driving guide groove 149 by making, deviate to prevent projection 132 can and replace with above-mentioned driving projection 151i, and deviate to prevent that guide groove 133 from can replace with driving guide groove 149.In this configuration, do not need to form to deviate to prevent projection 132 and deviate to prevent guide groove 133, thereby the first valve plate 105a and runner 104 can be disposed simply.
Secondly, shown among Figure 37, displacement regulation and control projection 136 and lower casing 107 form one preventing the vibration of the first valve plate 105a end, that is displacement.Close first and second apertures 124 and at 144 o'clock at the first valve plate 105a, the end that displacement regulation and control projection 136 is engaged in the first valve plate 105a is with the vibration of the first valve plate 105a that prevents from whereby to be caused by vibration during in the first valve plate 105a in percussive action.Thin-walled portion 137 is formed on the end of the first valve plate 105a, the valve plate 105a that wins can gently be entered between lower casing 107 first type surfaces part and the displacement regulation and control projection 136 also can engage.Integral body forms thinlyyer the first valve plate 105a by forming thin-walled portion 137 in its end.On the contrary, shown among Figure 33 to 35, lifting device 138 is formed at the first type surface that the first valve plate 105a is provided with the runner 104 on it.Lifting device 138 can be lifted to lower casing 107 1 sides with the first valve plate 105a, makes the thin-walled portion 137 that is formed at the first valve plate 105a end can successfully be engaged in displacement regulation and control projection 136.
Shown among Figure 34 and 35, the second valve plate 105b that is engaged in as the first above-mentioned valve plate 105a comprises the second valve part 161, is used for closing first and second apertures 124 and 144 together with the first valve part 151; And second rotational support portions 162 that is secured to second axis hole 154 that is formed at the first valve plate 105a.
The second valve part 161 comprises first side edge part 161a, second side edge part 161b, and the 3rd lateral edge portions 161c.First side edge part 161a is engaged in the second side edge part 151b of the first valve part 151, the second side edge part 161b that is connected in first side edge part 161a is engaged in the 3rd lateral edge portions of the first valve part 151, and the 3rd lateral edge portions 161c is located opposite to second side edge part 161b and is connected in first side edge part 161a.First side edge part 161a is made of the sloping portion on the direction relative with the sloping portion of the first valve part, 151 second side edge part 151b, and second side edge part 161b is made of the sloping portion on the direction relative with the sloping portion of the first valve part 151 the 3rd lateral edge portions 151c.Secondly, the sloping portion of the sloping portion of first side edge part 161a and second side edge part 161b also all forms in the opposite direction.Close first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, respectively in the opposite direction, the second side edge part 151b of the first valve part 151 is engaged in the sloping portion of the second valve part, 161 first side edge part 161a, and the sloping portion of the first valve part 151 the 3rd lateral edge portions 151c is engaged in the sloping portion of the second valve part, 161 second side edge part 161b.So, close first and second apertures 124 and at 144 o'clock at a pair of first and second valve plate 105a and 105b, the first and second valve plate 105a and 105b are engaged with each other, preventing that whereby dust etc. from entering within the coupling part, and make the first and second valve plate 105a and the 105b can deflection when their pressurizeds.
Secondly, shown among Figure 34, the first straight-line groove 158a is formed at the first side edge part 151a of the first valve part 151, and the first projection 159a that the first groove 158a engages is formed at the lateral edge portions in runner 104 second apertures 144 that are engaged in first side edge part 151a.The second straight-line groove 158b is formed at the second side edge part 151b of the first valve part 151, and the second projection 159b that the second groove 158b engages is formed at the first side edge part 161a that is engaged in second side edge part 151b.Secondly, the 3rd straight-line groove 158c is formed at the 3rd lateral edge portions 151c of the first valve part 151, and the 3rd projection 159c is formed at the second side edge part 161b that is engaged in the 3rd lateral edge portions 151c.Secondly, the 4th groove 158c is engaged in the first projection 159a of runner 104, also is formed at the second valve part 161.Close first and second apertures 124 and at 144 o'clock at the first and second valve plate 105a and 105b, first to fourth groove 158a to 158e is engaged in first to the 3rd projection 159a to 159c and enters within the coupling part to prevent dust etc. whereby.Notice that each valve plate that is formed with groove and projection is not limited to above-mentioned example, even but dispose to such an extent that also can reach same effect in contrast to each valve plate of above example.
Shown among Figure 34,38 and 39, the second bolster 162a is formed at second rotational support portions 162.The second bolster 162a injects second axis hole 154 that is formed at the first valve plate 105a, first rotational support portions 153, is in it and deviates to prevent that by second locking mechanism 160 prevents the state of deviating from.Specifically, the second rotational support portions 162a, deviate to prevent locking mechanism 160 as second, form by the elastic component 162c and the 162d that form by line of rabbet joint 162b, and lock part 162e and 162f, prevent member as throwing off, to be formed at the end of each elastic component 162c and 162d and to stretch out from its end side expansion.These two lock part 162e and 162f are configured as leader, and its outside surface is made of R surface (curved surface) or C surface (inclined-plane).The bottom of lock part 162e and 162f forms to such an extent that inject the diameter of second axis hole 154 of the first valve plate 105a wherein greater than the second bolster 162a.Next, the notch 154a that lock part 162e and 162f lock on it forms around second axis hole 154.The second bolster 162a guides and is inserted into second axis hole 154 by the leader of lock part 162e and 162f.At this moment, elastic component 162c and 162d make elastic displacement and inject second axis hole 154 to allow the second bolster 162a on their approximating directions, and after lock part 162e and 162f are inserted into, elastic component 162c and 162d elastic recovery.Under such operational circumstances, lock part 162e and 162f are locked in the lower surface of notch 154a around second axis hole 154.Disk cartridge 101 is by lock part 162e and 162f being arranged within the notch 154a and integral body is done thinlyyer.As above-mentioned, the second bolster 162a is locked in second axis hole 154 securely by lock part 162e and 162f, makes that the second bolster 162a can be owing to deviating from second axis hole 154 because of the vibrations due to falling etc.Notice that the quantity of elastic component 162c and 162d is not limited to two, and can use three or more elastic component.
Notice that when the second bolster 162a was formed by a kind of resin material, above-mentioned lock part 162e and 162f can form by the end with ultrasound wave or heat melts elastic component 162c and 162d.Secondly, the second bolster 162a can form to such an extent that do not have line of rabbet joint 162b, that is is not cut apart, then can be by setting lock part with ultrasound wave or its end of heat melts.Secondly, the second bolster 162a is arranged at the situation that the second valve plate 105b and second axis hole 154 be arranged at the first valve plate 105a and is explaining to state in the example.But, second axis hole 154 can be arranged at the second valve plate 105b and the second bolster 162a can be arranged at the first valve plate 150a.
Secondly, shown among Figure 38, the second bolster 162a is arranged at the seat board part 169g that forms one with second rotational support portions 162.Seat board part 162g is a reinforcing section, is used to strengthen being provided with the part of the second bolster 162a, and does to such an extent that be thicker than other each several parts.Seat board part 162g is equipped on runner 104 so that be thicker than other zones.Dodge guide groove 146 and be formed at runner 104 to dodge seat board part 162g.Secondly, shown among Figure 31, be formed at the inside surface of lower casing 107 as the notch 163e that dodges part of the second bolster 162a end.
Secondly, shown among Figure 34 and 39, first cam portion 164 is formed at the second valve part 161, and first cam portion 164 is to be made of the guide groove that runs through that the first control projection 163 that is formed at runner 104 engages.The first control projection 163 is engaged in first cam portion 164, makes the rotation of the cam portion 164 controls second valve plate 105b that wins.First cam portion 164 has the first agency part 164a, is positioned at the side away from the second bolster 162a that is used as the second valve plate 105b rotating fulcrum; And the first agency part 164b not, be positioned near the side of the second bolster 162a and be connected in the first agency part 164a.The first continuous agency part 164a is bent upwards in first party, first not agency part 164b be bent upwards in second party, and the first agency part 164a and first not agency part 164b constitute by the guide groove that runs through crooked on direction opposite each other.The first agency part 164a that is positioned at away from the second bolster 162a, one side plays a role when the second valve plate 105b rotates during the second valve plate 105b opens the preceding half section of first and second apertures 124 and 144.Simultaneously, the first agency part 164b not is positioned near the second bolster 162a, one side and is connected in first agency part, is inoperative part during the second valve plate 105b opens the later half period of first and second apertures 124 and 144.
Notice that the first agency part 164a can be formed by the mode that does not overlap with the track of the first control projection 163 when runner 104 rotates.Simultaneously, first track that agency part 164b can be by not coinciding with or be wider than the first control projection 163 and make the first control projection 163 not form the mode contact not formed with guide groove.
Shown among Figure 39, the first control projection 163 deviates to prevent that by the 3rd locking mechanism 163a is arranged on the runner 104 securely.The first control projection 163 of runner 104 deviates from prevent locking mechanism 163a as the 3rd, has to form to such an extent that swell the disengagement of stretching out from axial region 163b end and prevent part 163c.Disengagement prevents that part 163c from not forming by giving prominence to from an axial region 163b part in a kind of mode of not giving prominence to from the whole periphery of axial region 163b, thereby metal die is simplified.On the contrary, the guide groove that runs through that constitutes first cam portion 164 is to form with the width that axial region 163b can inject wherein, prevents that the thin-walled portion 163d that part 163c locks on it is formed on the both sides of running through guide groove and throw off.Disengagement prevents that part 163c is engaged in thin-walled portion 163d, thereby its wall thickness can reduce.Shown among Figure 31, groove 162h as throwing off the part of dodging that prevents part 163c, is formed on the inside surface of lower casing 107 in addition.
Notice that the 3rd deviates to prevent that locking mechanism 163a also can dispose to such an extent that deviate to prevent that with above-mentioned second locking mechanism 160 is the same.
Secondly, shown among Figure 34, one second control projection 166 is formed at the second valve part 161 and is engaged in second cam portion 165 that is made of a guide groove that is formed on runner 104 first type surfaces.Agency part 165a and the second agency part 165b do not form second cam portion 165 by second.Second not agency part 165a be bent upwards in first party in runner 104 centers one side, and the second agency part 165b is bent upwards along the second party opposite with first direction in runner 104 neighborings one side.Second cam portion 165 be by one the band end guide groove constitute and prevent to enter runner 104 such as foreign matters such as abrasion powder, dusts.Second not agency part 165a open during the preceding half section of first and second apertures 124 and 144 inoperatively at the second valve plate 105b, the second agency part 165b works open later half period of first and second apertures 124 and 144 at the second valve plate 105b during simultaneously.So, second not agency part 165a open during the preceding half section of first and second apertures 124 and 144 inoperative at the second valve plate 105b, and in the second control projection 166 when agency part 165a does not move to the second agency part 165b from second, that is during the later half period that the second valve plate 105b rotates, the second agency part 165b replaces the first agency part 164a of above-mentioned first cam portion 164 to rotate the second valve plate 105b.As above-mentioned, open first and second apertures 124 and at 144 o'clock at the second valve plate 105b, disk cartridge 1 comes by the agency part branch with preceding half section and later half period and prevents appearance such as dust because of due to the wearing and tearing.
Note, second not agency part 165a can form by when runner 104 rotates, coinciding with or be wider than the track of the second control projection 166 and making the second control projection 166 not form to contact with guide groove.Simultaneously, the second agency part 165b can form by the track that does not coincide with the second control projection 166.
By the way, shown among Figure 34 and 39, the 3rd not agency part 164c be formed at and be formed on first cam portion 164 that first on the runner 104 control projection 163 engages, and the 3rd not agency part 164c be positioned at away from as the side of the second bolster 162a of the second valve plate 105b rotating fulcrum and in the first agency part 164a upstream, that is with the first relative side of agency part 164b not.When the second valve plate 105b was positioned at it and closes the position of first and second apertures 124 and 144, the first control projection 163 was positioned at the 3rd position of agency part 164c not.The 3rd not agency part 164c form to such an extent that when runner 104 beginning is rotated, coincide with or be wider than the track of the first control projection 163 on the second valve plate 105b opens the direction of first and second apertures 124 and 144.So, be positioned at the 3rd not during the position of agency part 164c in the first control projection 163, just runner 104 rotates, and the second valve plate 105b does not rotate.Then, being formed near the runner 104 second apertures 144 first projection 159a just engages with the 4th groove 158e releasing of the second valve plate 105b.At this moment, the 3rd not agency part 164c realize an attitude control function, be used to vibration that prevents the second valve plate 105b etc.Next, when the first control projection 163 moved to the 3rd the first agency part 164a that agency part 164c is not adjacent, the second valve plate 105b began to rotate.Notice that after this, the first control projection 163 moves to the first agency part 164b not.
As above-mentioned, when disk cartridge 101 is contained on record and/or the replay device and begins to rotate, the driving force of the record and/or the valve opener of replay device need be used to overcome the driving force of thrust piece 148 rotating wheels 104 and be used to make be formed on the driving force that near the first projection 159a runner 104 second apertures 144 engage with the 4th groove 158e releasing of the second valve plate 105b, and do not need to be used to rotate the driving force of the second valve plate 105b, thereby total driving force can reduce.Move to the first agency part 164a and first not during agency part 164b in the first control projection 163, only need be used to overcome the driving force and the driving force that is used to rotate the first and second valve plate 105a and 105b of thrust piece 148 rotating wheels 104, and do not need to be used to make to be formed on the driving force that near the runner 104 second apertures 144 first projection 159a engage with the 4th groove 158e releasing of the second valve plate 105b, thereby total driving force of valve opener can reduce.Notice that be arranged in first not during agency part 164b in the first control projection 163, the second control projection 166 of the second valve plate 105b is made it to rotate by the second agency part 165b of second cam portion 165.
Secondly, the 4th not agency part 165c be formed on the downstream of second cam portion, 165 second agency part 165b, that is agency part 165a is not relative with second.The 4th not agency part 165c open first and second apertures 124 and 144: second control projections 166 final residing parts at the second valve plate 105b.The 4th not agency part 165c be that the first and second valve plate 105a and the 105b of runner 104 opens the last part of first and second apertures 124 and 144, and form to such an extent that coincide with or be wider than the track of the second control projection 166.So, moving and be arranged in the 4th not during agency part 165c from the second agency part 165b in the second control projection 166, runner 104 rotates, and the first and second valve plate 105a and 105b do not rotate.The 4th not agency part 165c form to such an extent that absorb the error of runner 104 amounts of spin, and, be positioned at the 4th not within the agency part 165c time driving projection 166, runner 104 rotates, and the second valve plate 105b does not rotate.
Pass between first and second control projections 163 and 166 and first and first cam portion 164 and 165 lies in this explanation of being summarized with regard to the rotation of the rotation of runner 104 and the first and second valve plate 105a and 105b.At first, in disk cartridge 101 time spent not, that is when the second valve plate 105b is positioned at it and closes the position of first and second apertures 124 and 144, the first control projection 163 is positioned at the 3rd not among the agency part 164c of first cam portion 164, and, when runner 104 begins to rotate, first control projection 163 since the 3rd not agency part 164c move to the first agency part 164a and rotate the second valve plate 105b.At this moment, the second control projection 166 is positioned at second not among the agency part 165a and inoperative of second cam portion 165.
Secondly, when runner 104 rotated, the first control projection 163 moved to its first agency part 164b not from the first agency part 164a of first cam portion 164.So, second control projection 166 from second cam portion 165 second not agency part 165a move to its second agency part 165b.That is the second valve plate 105b is made it to rotate by the second control projection 166, and the latter is engaged in the second agency part 165b of second cam portion 165, replaces being engaged in the first first control projection 163 of agency part 164b not of first cam portion 164.
At last, the second control projection 166 moves to its 4th agency part 165c not from the second agency part 165b of second cam portion 165.At this moment, the first control projection 163 still is positioned at first not within the agency part 164b of first cam portion 164.Under above operational circumstances, finished by first and second apertures 124 of the second valve plate 105a, 105b realization and 144 breakdown action.
A kind of assembled configuration must will be described as the method for above-mentioned disk cartridge 1.For assembled box type dish 1, at first, shown among Figure 38, the first valve plate 105a combines with the second valve plate 105b, and second axis hole 154 that is secured to the first valve plate 105a by the second bolster 162a with the second valve plate 105b is in them to be deviate to prevent under the state that locking mechanism 160 prevents to deviate from by second.That is the first valve plate 105a is by injecting the second bolster 162a second axis hole 154 and being locked in lock part 162e and 162f around the notch 154a bottom of second axis hole 154 and combining with the second valve plate 105b.
Then, so the first and second valve plate 105a and the 106a of combination are arranged on the runner 104.That is, the first and second valve plate 105a and 105b pass through: make constitute that first of the first valve plate 105a deviates to prevent locking mechanism 131 deviate to prevent that projection 132 is engaged in runner 104 deviates to prevent guide groove 133, make formation the 3rd deviate to prevent locking mechanism 163a's, the disengagement of runner 104 first control projection 163a prevents that part 163c is engaged in the guide groove of the second valve plate 105b, first cam portion 164, make the driving projection 151i of the first valve plate 105a be engaged in the driving guide groove 149 of runner 104, and further make the second control projection 166 of the first valve plate 105a be engaged in second cam portion 165 of the second valve plate 105b, and be set on the runner 104.
When the first and second valve plate 105a and 105b are arranged on the runner 104, thrust piece 148 gives attaching by near the locking projection 148b that an end is locked in the locking piece 148a that is formed at runner 104 annular sections 143 and the other end is locked in the first axis hole 153a that is formed on the first valve plate 105a, first rotational support portions 153, shown among Figure 35.When thrust piece 148 attachings extend between the runner 104 and the first valve plate 105a, the first and second valve plate 105a and 105b and the thrust piece 148 attachings runner 104 on it is arranged on the upper casing 106 rotationally, be in the state that first bolster 152 that is formed at upper casing 106 inside surfaces injects the first axis hole 153a of the first valve plate 105a, and part to be driven 145 is in the face of front surface one side.At this moment, runner 104 is secured to upper casing 106 with following state, and promptly thrust piece 148 extends between the first valve plate 105a and the runner 104.So, extending in situation between the runner 104 and the first valve plate 105a compared with thrust piece 148 after being arranged at runner 104 on the upper casing 106, assembly working can be finished with comparalive ease.
After this, disk cartridge 101 combines by the upper casing 106 that lower casing 107 is provided with runner 104 and the first and second valve plate 105a and 105b with it, and they are coupled to each other with some screws and are installed.
Dispose be installed in as above-mentioned disk cartridge 101 record and/or replay device before, it is in the state shown in Figure 27,28 and 40.That is, close first and second apertures 124 and at 144 o'clock at a pair of first and second valve plate 105a and 105b, runner 104 is made it to rotate in and push against the direction of arrow A among Figure 40 by the pushing force of thrust piece 148, part 145 to be driven is positioned at a lateral edges place in first aperture 124, and the position in lower casing 107 first apertures 124 does not overlap the position in runner 104 second apertures 144.Because the first valve plate 105a is engaged in the engaging groove 145c of part 145 to be driven, shown among Figure 28, the first valve plate 105a can be prevented from fluctuating.Secondly, shown among Figure 34, respectively in the opposite direction, the second side edge part 151b of the first valve part 151 is engaged in the ramp portion of the second valve part, 161 first side edge part 161a, and the ramp portion of the other first valve part 151 the 3rd lateral edge portions 151c is engaged in the ramp portion of the second valve part, 161 second side edge part 161b.That is being engaged with each other by the first and second valve plate 105a and 105b makes that disk cartridge 101 can not deflection and distortion, and upwards floating of the first valve plate 105a prevented, thereby is prevented from entering disk cartridge main body 102 such as the foreign matter of dust etc.Secondly, because first to fourth groove 158a to 158e is engaged in first to the 3rd projection 159a to 159c, dust etc. are prevented from entering inside from connection part.
In addition, shown among Figure 40, the driving projection 151i of the first valve plate 105a is within the end place that runner 104 drives guide grooves 149 is positioned at not agency part 149a, and the first valve plate 105a is positioned at the position that it closes first and second apertures 124 and 144.Secondly, the first control projection 163 is engaged in the 3rd agency part 164c not of the second valve plate 105b, first cam portion 164, the second control projection 166 of the second valve plate 105b is engaged in the second agency part 165a not of runner 104 second cam portions 165, and, the first valve plate 105a closes first aperture 124 of lower casing 107, shown among Figure 28.
Secondly, the guide projections 151g of the first valve plate 105a and regulation and control projection 151h are positioned within second aperture 144.The guide projections 151g of the first valve plate 105a and regulation and control projection 151h are provided with corresponding to the non-signal record of the interior periphery side zone around the central aperture 103a that is housed in the CD 103 among the runner 104.So, even the first valve plate 105a pressurized, the inner periphery side non-signal record zone and the first valve part 151 of CD 103 do not contact with the signal record zone of CD 103 because the guide projections 151g of the first valve plate 105a and regulation and control projection 151h recline, and the signal record zone can be prevented from being swiped.
When disk cartridge 101 was not used as described above, the user was when he or she plans that its is injected record and/or replay device or may disk cartridge 101 be dropped when he or she holds it by mistake.That is the time spent often is not subjected to very big vibrations in disk cartridge 101.Thereby among disk cartridge 101, the first valve plate 105a deviates to prevent that by being provided with first locking mechanism 131 is prevented from throwing off with runner 104.That is, the time spent is not closed first and second apertures 124 and at 144 o'clock in disk cartridge 101 at the first and second valve plate 105a and 105b, deviate to prevent that projection 132 is engaged in deviates to prevent guide groove 133, break away from the first type surface part of runner 104 to prevent valve plate 105a whereby.
Secondly, disk cartridge 101 is furnished with second and deviates to prevent locking mechanism 160, breaks away from the first valve plate 105a to prevent the second valve plate 105b.That is, the second valve plate 105b, the disengagement that is secured to itself and runner 104 deviates to prevent the first valve plate 105a that locking mechanism 131 is prevented by first, and second axis hole 154 that is locked in the first valve plate 105a by lock part 162e and 162f with the second valve plate 105b, the second bolster 162a is prevented from breaking away from the first valve plate 105a.
Secondly, in disk cartridge 101, the second valve plate 105b deviates to prevent that by the 3rd locking mechanism 163a prevents to break away from runner 104.That is disengagement prevents part 163c, is formed at the end that is formed on the control of first on the runner 104 projection 163, be engaged in the thin-walled portion 163d that runs through guide groove that constitutes first cam portion 164, thereby the second valve plate 105b is prevented from breaking away from runner 104.
As above-mentioned, the first valve plate 105a deviates to prevent that by first locking mechanism 131 prevents to break away from runner 104, the second valve plate 105b deviates to prevent that by second locking mechanism 160 prevents to break away from the first valve plate 105a, and deviates to prevent that by the 3rd locking mechanism 163a prevents that the second valve plate 105b breaks away from runner 104 in addition.So, even disk cartridge 101 not huge shock effect of time spent in it, the first and second valve plate 105a and 105b also can be prevented from breaking away from runner 104, and the operational failure that the runner 104 and the first and second valve plate 105a and 105b are not rotated also can be prevented from.
Secondly, in disk cartridge 101 time spent not, because being engaged in displacement regulation and control projection 136, the first valve plate 105a of lower casing 107, the thin-walled portion 137 in the first valve plate 105a end can be prevented from vibration, even very big shock effect is in disk cartridge main body 102.Therefore, comparable preventing trembled because of vibrations such as the end of the first valve plate 105a, enters runner 104 and scraping from its second aperture 144 and is housed in CD 103 wherein or makes first valve plate not rotatable.Because displacement regulation and control projection 136 forms one with lower casing 107, so unnecessary secondary process is used to form displacement regulation and control projection 136, this has just simplified manufacture process.
Utilize it to form haply as above-mentioned box dish 101 front end surface of arc is inserted into record and/or replay device as its insertion end.When disk cartridge 101 was inserted into record and/or replay device, a pair of plug-in mounting pilot pin that is formed at the mounting portion of record and/or replay device was inserted into guide groove 125a and 125b.When disk cartridge 101 was installed on the mounting portion of record and/or replay device by the guiding of each plug-in mounting pilot pin, the register pin of mounting portion was engaged in pilot hole 126a and mating holes 126b, thereby disk cartridge 101 is installed on the mounting portion with accurate positioning states.Then, valve is opened pin 141, constitutes the valve opener of record and/or replay device, is engaged in the part to be driven 145 of runner 104.Thereby runner 104 is opened pin 141 by the valve of record that is engaged in runner 104 parts 145 to be driven and/or replay device and is made it to rotate on the direction of arrow A among Figure 40.Runner 104 is opened pushing force that pin 141 overcomes thrust piece 148 direction of arrow A among Figure 40 by valve and is rotated.
When runner 104 begins to rotate, the first valve plate 105a does not rotate, and moves towards the agency part 149b that drives guide groove 149 among the not agency part 149a of the driving guide groove 149 that is formed at runner 104 because be formed at the driving projection 151i of the first valve part 151.Secondly, when rotation 104 begins to rotate, the second valve plate 105b does not rotate yet, do not move towards its first agency part 164a among the agency part 164c at the 3rd of first cam portion 164 because be formed at the first control projection 163 of runner 104, and the second control projection 166 of the second valve plate 105b does not move towards its second agency part 165b among the agency part 165a at second of second cam portion 165.That is when runner 104 began to rotate, just runner 104 rotated in contrast to the arrow A among Figure 40, and the first and second valve plate 105a and 105b do not rotate.Because just runner 104 rotates, then be formed near the runner 104 second apertures 144 first projection 159a and engage with the first groove 158a of the first valve plate 105a and the 4th groove 158e releasing of the second valve plate 105b.When runner 104 begins to rotate, the record and/or the driving force of replay device valve opener only need be used to overcome the driving force of the driving runner 104 of thrust piece 148, remove the driving force that engage with being formed near the runner 104 second apertures 144 first projection 159a with the first valve plate 105a, first groove 158a and the second valve plate 105b the 4th groove 158e with being used for, and do not need to be used to driving force that the first and second valve plate 105a and 105b are rotated, thereby total driving force can reduce.
Secondly, in runner 104 arrow A and when rotating among Figure 40, because the driving projection 151i that is formed at the first valve part 151 moves to its agency part 149b from the not agency part 149a of the driving guide groove 149 that is formed at runner 104, the first valve plate 105a begins to rotate on the direction of arrow B among Figure 40 around first bolster 152 of upper casing 106.When the first valve plate 105a rotates, be formed at runner 104 first control projection 163 from first cam portion 164 the 3rd not agency part 164c move to its first agency part 164a, and the second control projection 166 of the second valve plate 105b does not move towards its second agency part 165b among the agency part 165a at second of second cam portion 165, thereby the second valve plate 105b begins to rotate on the direction of arrow C among Figure 40 around the second bolster 162a of second axis hole 154 that is secured to the first valve plate 105a.That is, because second 166 of the projections of control of the second valve plate 105b do not move among the agency part 165a at second of second cam portion 165, so it does not work to the rotation of the second valve plate 105b, and the second valve plate 105b nationality is moved in the first agency part 164a of first cam portion 164 and is rotated by the first control projection 163 of runner 104.
Secondly, runner 104 among Figure 40 arrow A and when rotating, the driving projection 151i that is formed at the first valve part 151 moves among the agency part 149b of the driving guide groove 149 that is formed at runner 104, thereby driving projection 151i rotates on the direction of arrow B among Figure 40 around first bolster 152 of upper casing 106, shown among Figure 41.Secondly, when the first valve plate 105a rotates, the first control projection 163 that is formed at runner 104 moves to its first agency part 164b not from the first agency part 164a of first cam portion 164, and the second control projection 166 of the second valve plate 105b from second cam portion 165 second not agency part 165a move to its second agency part 165b, thereby the second valve plate 105b rotates on the direction of arrow C among Figure 40 continuously around the second bolster 162a that is secured to the first valve plate 105a, second axis hole 154.That is, the later half period shown among Figure 41 after the state, the second valve plate 105b nationality is moved in the second agency part 165b of second cam portion 165 and is rotated by the second control projection 166 of the second valve plate 105b, and the first control projection 163 of the runner 104 that once worked till at that time is then owing to move to the first agency part 164b and inoperative not from the first agency part 164a.State shown among Figure 41, the control projection that is used to rotate the second valve plate 105b are replaced by the second control projection 166 of the second agency part 165b that is engaged in second cam portion 165 from the first control projection 163 of the first agency part 164a that is engaged in first cam portion 164.
Secondly, in runner 104 arrow A and when rotating, the position in lower casing 107 first apertures 124 coincides with the position in second aperture 144 of runner 104 among Figure 40.At this moment, move also and then move to its not agency part 149c owing to be formed at the driving projection 151i of first valve plate 151 among the agency part 149b of the driving guide groove 149 that is formed at lower casing 107, the first valve plate 105a rotates on the direction of arrow B among Figure 42 to open first and second apertures 124 and 144 whereby around first bolster 152 of upper casing 6.Secondly, when the first valve plate 105a rotates, the first control projection 163 that is formed at runner 104 moves to the one end in the first agency part 164a of first cam portion 164, and the second control projection 166 of the second valve plate 105b moves in the second agency part 165b of second cam portion 165 and and then move to the 3rd agency part 164c not.So the second valve plate 105b rotates on the direction of arrow C among Figure 42 continuously around the second back shaft 162a of second axis hole 154 that is secured to the first valve plate 105a, thereby first and second apertures 124 and 144 are unlocked, shown among Figure 43.
Note, the first valve plate 105a moves to its not complete opening during agency part 149c from the agency part 149b that drives guide groove 149 driving projection 151i, and the second valve plate 105b moves to its 4th complete opening during agency part 165c not in the second control projection 166 from the second agency part 165b of second cam portion 165.On the contrary, runner 104 rotates a little in contrast to the arrow A among Figure 42, and this moment, because the second control projection 166 does not move among the agency part 165c at the 4th of second cam portion 165 moving among the not agency part 149c that drives guide groove 149 to drive projection 151i, so the first and second valve plate 105a and 105b do not rotate.Just runner 104 in the end the stage reason of rotating be in order to absorb the error of runner 104 amounts of spin.
Secondly, shown among Figure 42, the second agency part 165b that the second valve plate 105b can be engaged in second cam portion 165 in the later half period of rotating operation by the second control projection 166 that makes away from the second bolster 162a replaces utilizing near the first control projection 163 as the second bolster 162a of the second valve plate 105b rotating fulcrum, and makes it rotation with faint driving force.More specifically say, the second valve plate 105b can by make from as the second bolster 162a of the second valve plate 105b rotating fulcrum to be arranged in second cam portion, 165 second agency part 165b or the 4th not the second control projection 166 among the agency part 165c distance L 2 greater than from the second bolster 162a to being arranged in the not first control projection, 163 distance L 1 of agency part 164b of first cam portion 164 first, and make it rotation with faint driving force.Secondly, can be by utilizing discrete agency part in the preceding half section and the later half period of the first and second valve plate 105a and 105b rotation, that is first agency part 164a by utilizing first cam portion 164 and the second agency part 165b of second cam portion 165, disk cartridge 101 can prevent that the rotation because of the first and second valve plate 105a and 105b produces such as dusts such as abrasion powders in disk cartridge main body 102.
Secondly, after the state shown among Figure 41, along with the rotation of the runner 104 and the first valve plate 105a, first deviate to prevent locking mechanism 131 deviate to prevent projection 132 from runner 104 deviate to prevent deviate from the guide groove 133 and withdraw from putting the space of CD 103.Rotate in a series of processes of rotating with the first and second valve plate 105a and 105b at runner 104, thrust piece 148 is owing to the rotation of runner 104 is stretched.But, thrust piece 148 is regulated and control with anti-deviation by the stop part 134 that is formed at runner 104 annular sections 143, thereby deviates to prevent that projection 132 from can successfully withdraw from deviate to prevent guide groove 133.
The central aperture 3a that is housed in the CD 103 among the runner 104 rotationally is engaged in the dish pedestal of the CD rotating drive mechanism of record and/or replay device, and CD 103 is clamped between the clamping plate 113 that are arranged at upper casing 106 and the dish pedestal, thereby CD 103 is remained under the rotating state by the dish pedestal.At information signal recording during in CD 103, or be recorded in information signal on the CD 103 by playback time, CD 103 is made it with CLV (constant linear velocity), CAV (Constant Angular Velocity) by the dish pedestal, or rotates with their combination.Simultaneously, be transmitted into the light beam signal record zone, that have about 400nm wavelength of CD 103 from semiconductor laser, give and to shine on the signal recording surface of CD 103 by coalescence by object lens.The optical pickup detection of reflected that enters first and second apertures 124 and 144 on the signal recording surface and the light beam that returns therefrom with whereby with information signal recording on the CD 103 or the information signal of playback record on CD 103.
Note, in disk cartridge 101 from record and/or replay device when being discharged from, deviate from from part 145 to be driven because valve is opened pin 141, runner 104 is made it to rotate and turn back to via the state of Figure 41 the state of Figure 40 on the direction of arrow A among Figure 42 by the pushing force of thrust piece 148.In a series of processes of rotating on the direction of runner 104 arrow A among Figure 42, the driving projection 151i of the first valve plate 105a moves to its not agency part 149c from the not agency part 149c that runner 104 drives guide groove 149 via its agency part 149b, the first valve plate 105a is rotated in contrast to the arrow B among Figure 40 to 42, and close first and second apertures 124 and 144.Secondly, be used to rotate the second valve plate 105b runner 104 the first control projection 163 from first cam portion 164 first not agency part 164b move to its 3rd agency part 164c not via its first agency part 164a, and the second control projection 166 of the second valve plate 105b from the 4th not agency part 165c move to the second agency part 165a not via the second agency part 165b.Under these operational circumstances, first and second apertures 124 and 144 are rotated and closed to the direction of second valve plate 105b arrow C among Figure 40 to 42.
Shown among Figure 41, when the direction of first valve plate 105a arrow B among Figure 41 was rotated, the thin-walled portion 137 in the first valve plate 105a end was engaged between lower casing 107 displacements regulation and control projection 136 and its first type surface.When the thin-walled portion 137 in the first valve plate 105a end enters displacement regulation and control projection 136, the first valve plate 105a is lifted to lower casing 107 1 sides by the lifting device 138 of runner 104, thereby thin-walled portion 137 can successfully be bonded between the first type surface of displacement regulation and control projection 136 and lower casing 107.Secondly, though thrust piece is retracted for 148 this moments, be formed at the sideslip of the stop part 134 regulation and control thrust pieces 148 of runner 104 annular sections 143.So, deviate to prevent that projection 132 from can successfully enter deviates to prevent guide groove 133.Secondly, shown among Figure 41, when rotating in the direction of second valve plate 105b arrow B among Figure 41, the first valve plate 105a deviates to prevent that projection 132 from entering deviates to prevent guide groove 133.At this moment, the first valve plate 105a gives lifting by the lifting device 135 of lower casing 107, thereby deviates to prevent that projection 132 from can successfully enter runner 104 deviates to prevent guide groove 133.
Be described as an example though use less disk cartridge 1 of the present invention and 101, in any case the present invention is not limited to this and also can be applied to such as the standard size disk cartridge that is disclosed among the Japanese Patent Application Publication publication No.2003-109343.
Industrial applicibility
According to the present invention and since diameter greater than each lock part of axis hole diameter in the second valve plate attaching Under the state of first valve plate, be arranged at the end of supporting axle, so even because of the vibrations due to falling Act on them, the supporting axle also can be prevented from deviating from from axis hole.
Secondly, according to the present invention, each valve plate can be by first to the 3rd from deviating from of each predetermined member Deviate to prevent that locking mechanism is prevented, thereby can prevent from recording and/or the running fault of replay device, with And can prevent that dust etc. from entering inside.
Claims (13)
1. a disk cartridge is characterized in that, comprising:
The disk cartridge main body is made up of lower casing and the upper casing of lower casing of reclining, and is formed with on the lower casing to be used to write down and/or first aperture of replay device;
Runner is housed in rotationally in the disk cartridge main body and in this runner and puts dish, and is formed with corresponding to second aperture in first aperture and exposes with the dish that will be put; And
Valve mechanism is between lower casing and the runner and corresponding to the rotation of runner and first aperture is opened first aperture and second aperture when coinciding with second aperture;
Wherein valve mechanism comprises first valve plate that is secured to one of upper and lower shell rotationally and second valve plate that is secured to first valve plate rotationally;
One of first valve plate and second valve plate are formed at the axis hole of another valve plate and are secured to another valve plate rotationally by the bolster reeve that will be provided with thereon; And
Diameter is arranged at the supporting the tip of the axis greater than the lock part of described axis hole.
2. according to the described disk cartridge of claim 1, it is characterized in that, described bolster is made of pair of resilient members, forms to such an extent that enlarge this lock part diameter towards the bottom of this lock part and have on the outside surface that is formed on this lock part and the leader that uses when described bolster injects described axis hole from described end and be arranged at this described lock part to the elastic component end portion.
3. according to the described disk cartridge of claim 1, it is characterized in that described lock part forms by the end portion with ultrasound wave or the described bolster of heat melts.
4. according to the described disk cartridge of claim 1, it is characterized in that described runner has the control projection, this control protrusion engagement is in the cam rail that is formed at second valve plate, and second valve plate rotates with respect to first valve plate corresponding to the rotation of runner; And
Be arranged at another lock part of the end of described control projection, the width of described cam rail is wider than in described another lock part.
5. according to the described disk cartridge of claim 4, it is characterized in that, described control projection is made of pair of resilient members, forms to such an extent that enlarge the diameter of this another lock part towards the bottom of this another lock part and have on the outside surface that is formed on this another lock part and the leader that uses when described bolster injects described axis hole from described end and be arranged at this described another lock part to the elastic component end portion.
6. according to the described disk cartridge of claim 4, it is characterized in that another lock part of the end of described control projection forms by the end portion with ultrasound wave or the described control projection of heat melts.
7. according to the described disk cartridge of claim 1, it is characterized in that described bolster is arranged at the valve plate that is provided with on it with described bolster and forms the reinforcing section of one, and the guide groove of dodging that is used for this reinforcing section is arranged at described runner.
8. a disk cartridge is characterized in that, comprising:
The disk cartridge main body is made up of lower casing and the upper casing of lower casing of reclining, and is formed with on the lower casing to be used to write down and/or first aperture of replay device;
Runner is housed in rotationally in the disk cartridge main body and in this runner and puts dish, and is formed with corresponding to second aperture in first aperture and exposes with the dish that will be put;
Valve mechanism, between lower casing and runner, have first valve plate that is secured to one of described upper casing and lower casing rotationally and second valve plate that is secured to first valve plate rotationally, and open first and second apertures when coinciding with second aperture corresponding to the rotation of runner and in first aperture; And
Thrust piece is used for closing in valve plate mechanism and rotates on the direction in first and second apertures and the pushing runner,
Wherein first valve plate utilizes first to deviate to prevent that locking mechanism prevents to throw off with runner, this first deviate to prevent locking mechanism comprise be formed at runner deviate to prevent guide groove and be formed at first valve plate deviate to prevent that with this guide groove from engaging deviates to prevent projection, describedly deviate to prevent that projection is engaged in the described guide groove of deviating to prevent at least when first and second valve plates are opened first and second apertures; And
Second valve plate utilizes second to deviate to prevent that locking mechanism prevents to throw off with first valve plate and utilize the 3rd to deviate to prevent that locking mechanism prevents to throw off with runner, the rotational support portions that is formed at one of first and second valve plates is deviate from anti-locking mechanism as second, described rotational support portions comprises another the bolster that inserts in described first and second valve plates, the control projection of runner is deviate from anti-locking mechanism as the 3rd, the cam portion of second valve plate that described control protrusion engagement is rotated in being formed at corresponding to the rotation of runner and with respect to first valve plate, the 3rd deviates to prevent that locking mechanism comprises that the disengagement by width that described control lug tips partly is wider than the guide groove of described cam portion is formed prevents part.
9. according to the described disk cartridge of claim 8, it is characterized in that, one end of described thrust piece is locked in the lock part of runner, and its other end is locked in first valve plate that is secured to one of described upper casing and lower casing, or is locked in the lock part of one of described upper casing and lower casing.
10. according to the described disk cartridge of claim 9, it is characterized in that an end of described thrust piece is locked in the lock part of the first valve plate rotational support portions.
11. according to the described disk cartridge of claim 8, it is characterized in that, describedly deviate to prevent that projection from not deviating to prevent on the guide groove Width and deviating to prevent that guide groove from contacting.
12., it is characterized in that described runner has the stop part of thrust piece according to the described disk cartridge of claim 8, be formed on and deviate to prevent near the guide groove.
13., it is characterized in that the lifting device is formed at lower casing according to the described disk cartridge of claim 8, in order to when first valve plate rotates on the direction that first and second valve plates are closed on the runner direction lifting first valve plate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004111444 | 2004-04-05 | ||
| JP111444/2004 | 2004-04-05 | ||
| JP107286/2005 | 2005-04-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1788317A CN1788317A (en) | 2006-06-14 |
| CN100456383C true CN100456383C (en) | 2009-01-28 |
Family
ID=36785131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800003475A Expired - Fee Related CN100456383C (en) | 2004-04-05 | 2005-04-05 | Disk cartridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100456383C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2141114Y (en) * | 1991-12-30 | 1993-08-25 | 株式会社Skc | Cassette with improved front cover locker |
| CN1144383A (en) * | 1994-10-11 | 1997-03-05 | 索尼公司 | Dustproofing rib structure of tape cassette with lid |
| JP2000090628A (en) * | 1998-07-13 | 2000-03-31 | Sony Corp | Disk cartridge |
| JP2001283557A (en) * | 2000-03-31 | 2001-10-12 | Sony Corp | Disk cartridge |
| WO2003023779A1 (en) * | 2001-09-10 | 2003-03-20 | Tdk Corporation | Disk cartridge |
-
2005
- 2005-04-05 CN CNB2005800003475A patent/CN100456383C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2141114Y (en) * | 1991-12-30 | 1993-08-25 | 株式会社Skc | Cassette with improved front cover locker |
| CN1144383A (en) * | 1994-10-11 | 1997-03-05 | 索尼公司 | Dustproofing rib structure of tape cassette with lid |
| JP2000090628A (en) * | 1998-07-13 | 2000-03-31 | Sony Corp | Disk cartridge |
| JP2001283557A (en) * | 2000-03-31 | 2001-10-12 | Sony Corp | Disk cartridge |
| WO2003023779A1 (en) * | 2001-09-10 | 2003-03-20 | Tdk Corporation | Disk cartridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1788317A (en) | 2006-06-14 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090128 Termination date: 20100405 |