JP2011086328A - Disk device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk device that prevents contact between a tip part of a disk and a rotational driving part when the disk held between a conveying roller and a holding member is conveyed. <P>SOLUTION: The disk D held by the conveying roller 22 and the holding member 23 is conveyed by rotational force of the conveying roller 22 in a direction Y1. A supporting movement member 41 is restrained in a position where a holding sensing pin 43 is slightly raised directly before the tip part of the disk D reaches a fitting projection part 13b of a clamper 13. As a result, the disk D is raised by a holding member 61 provided on the holding sensing pin 43 so that the tip part of the conveyed disk D is regulated downward, and the tip part of the disk D can be further conveyed without contact with the fitting projection part 13b. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a disk device that can stabilize the posture of the front end of a disk and prevent the front end from interfering with the rotational drive unit when the front end of the disk being transported by a transport mechanism reaches the rotational drive unit.

  A so-called slot-in type disk device used for in-vehicle use has a conveyance roller and a synthetic resin clamping member facing each other inside an insertion port formed in a housing, and the conveyance roller and the clamping member Are biased by the spring members in a direction approaching each other.

  When the disc is inserted from the insertion slot, the transport motor starts and the transport roller starts to rotate. The disk is sandwiched between the transport roller and the clamping member, and is transported toward the inside of the housing by the rotational force of the transport roller. When the center portion of the disk is installed on the turntable provided in the rotation drive section, the center portion of the disk is clamped by the clamper and the turntable.

  In this type of disk device, the posture of the disk being transported is unstable at a portion that is not sandwiched between the transport roller and the sandwiching member. In particular, the orientation of the tip of the disc facing the inside of the housing of the disc is unstable, and the tip of the disc tends to swing up and down during transport. The turntable provided in the rotation drive part is provided with a protrusion for fitting the center hole of the disk, and the clamper is also provided with a protrusion for fitting with the turntable. When the posture becomes unstable, a problem such as the impossibility of conveyance is likely to occur because the tip hits one of the protrusions.

  In particular, a thin disk device has a limit in the height at which the clamper can be lifted from the turntable, so that the distance between the turntable and the clamper when the disk is loaded becomes narrow, and the above problem is likely to occur.

  In order to solve this problem, in the disk device described in Patent Document 1 below, a turntable is provided on the lifting frame, and lead pieces are provided on both sides of the turntable. When the elevating frame is lowered, the lead piece is at a higher position than the turntable, the disc being conveyed is guided onto the lead piece, and the tip of the disc is less likely to hit the turntable.

JP 2008-10075 A

  The disk device described in Patent Document 1 has a structure in which a turntable is provided on an elevating frame, and a protrusion of the turntable enters a center hole of the disk by an ascending operation of the elevating frame. Since the lifting table is equipped with a turntable and a motor that drives the turntable, the load when lifting the lifting frame is excessive, and a high-output motor may be mounted to lift the lifting frame. I need it.

  Further, since the lead piece exists on the side of the turntable, the lifting distance of the lifting frame must be increased in order to sufficiently separate the disk held on the turntable upward from the lead piece. This makes it difficult to reduce the thickness of the disk device.

  The present invention solves the above-described conventional problems, and stabilizes the posture of the disc being conveyed when the leading end of the disc being conveyed approaches the rotational drive unit or moves to a position overlapping the rotational drive unit. Thus, an object of the present invention is to provide a disk device in which interference between the front end of the disk and the rotation drive unit is less likely to occur.

The present invention relates to a disk device including a rotation driving unit that holds and rotates the center of the disk, and a transport mechanism that transports the disk inserted from the insertion port of the housing toward the rotation driving unit.
A pair of holding members disposed on both sides sandwiching the movement trajectory of the center of the disk conveyed toward the rotational drive unit, and a direction in which the holding member is individually supported and the holding member hits the outer peripheral edge of the disk A supporting and moving member that moves, and a biasing member that biases each of the holding members in a direction to hit the outer peripheral edge of the disk,
Immediately before the leading end of the disk reaches the rotation driving unit, or when the leading end of the disk moves to a position overlapping the rotation driving unit, the support moving member is restrained and held by the holding member for a predetermined regulation time. A restraining mechanism for restricting the movement of the leading end of the disc is provided.

  The disc device of the present invention is provided with a holding member that sandwiches the disc conveyed by the conveyance mechanism, and restrains the movement of the support moving member that supports the holding member during the regulation time, so that the tip of the disc moves in the thickness direction. It is regulated not to move more than necessary. Therefore, it becomes easy to prevent the front end of the disk from hitting the rotation drive unit.

  In the present invention, the support moving member is pressed in any direction crossing the surface of the disk by the restraining mechanism, and the leading end of the disk is restricted in any direction crossing the surface of the disk. is there.

  In the present invention, it is preferable that the support moving member can move in a direction crossing the surface of the disk except for the regulation time.

  In the above invention, the time for restraining the disk by the holding member is limited to the shortest regulation time necessary for preventing the interference with the rotation drive unit. Therefore, at times other than the regulation time, an excessive restraining force by the holding member is not further applied to the disk sandwiched between the transport roller and the sandwiching member, and the disk sandwiched between the transport roller and the sandwiching member is ineffective. It is possible to prevent bending stress from being applied. Further, the time for restraining the disk by the holding member is shortened so that the load on the transport roller can be prevented from increasing.

  In the present invention, for example, the restraining mechanism is provided with a pressing projection that presses the support moving member during the regulation time, and the pressing projection is at least one of the support moving member and the chassis that supports the supporting moving member. It can comprise as what is provided in.

  In the present invention, it is preferable that the pressing member has a concave portion that regulates an outer peripheral edge of the disc in a thickness direction of the disc.

  Furthermore, the pressing member is disposed between the insertion port and the transport mechanism. However, the pressing member may be disposed between the transport mechanism and the rotation driving unit.

  In the present invention, it is preferable that a detection member that operates when the pressing member is moved by being pushed by the outer peripheral edge of the disk is provided.

  The pressing member can be used not only to hold the disc but also as a detection member for detecting that the disc has been inserted, thereby reducing the number of parts.

  In the present invention, when the front end of the disk transported by the transport mechanism approaches or overlaps with the rotation drive unit, the front end of the disk interferes with the rotation drive unit by restraining the disk with a holding member. This makes it difficult to prevent disc transport failure.

1 is an exploded perspective view showing a main part of a disk device according to an embodiment of the present invention; An exploded perspective view showing details of a holding member, a support moving member and a restraining mechanism provided in the disk device; Cross-sectional enlarged view showing the restraint mechanism, Cross-sectional enlarged view showing the restraint mechanism, A plan view of a disk device showing a disk loading operation; A longitudinal sectional view of the disk device showing the disk loading operation,

  As shown in FIGS. 5 and 6, the in-vehicle disk device 1 according to the embodiment of the present invention has a housing 2. The housing | casing 2 is formed with the metal plate, The volume is what is called 1DIN size. The disk device 1 is installed so that the housing 2 is buried in the instrument panel in the vehicle interior, and the front plate 2a of the housing 2 appears in the vehicle interior. A decorative panel is fixed to the front plate 2a of the housing 2, and various operating members and display members are provided on the decorative panel.

  An insertion port 3 is opened in the front plate 2 a of the housing 2, and an opening leading to the insertion port 3 is also formed in the decorative panel. The disk D inserted into the housing 2 is a DVD, CD or other high capacity disk having a diameter of 12 cm. The inner width dimension of the insertion slot 3 is slightly wider than the diameter of the disk D, and the opening height dimension of the insertion slot 3 Is slightly wider than the thickness dimension of the disk D.

  As shown in FIGS. 3 and 4, a drive chassis 4 is provided inside the housing 2. The drive chassis 4 is elastically supported by a damper inside the housing 2. A rotation drive unit 10 is provided in the drive chassis 4.

  As shown in FIGS. 1 and 6, the rotation drive unit 10 includes a spindle motor 11 fixed to the drive chassis 4 and a turntable 12 fixed to a rotation shaft 11 a of the spindle motor 11.

  The turntable 12 is made of synthetic resin, and a disc receiving portion 12a on which the lower surface of the loaded disc D is installed, and a disc fitting that is positioned in the center of the disc receiving portion 12a and fits in the center hole of the disc D It has a protrusion 12b. A clamper fitting protrusion 12c is provided further on the center side than the disk fitting protrusion 12b. The clamper fitting protrusion 12c protrudes further upward than the upper surface of the disk fitting protrusion 12b. The disk fitting protrusion 12b is formed with a fitting recess 12d formed on the outer periphery of the clamper fitting protrusion 12c.

  As shown in FIG. 6, a clamp arm 5 is provided above the drive chassis 4, and a clamper 13 is rotatably supported by the clamp arm 5. The clamp arm 5 is rotatably supported by a connecting shaft provided in the drive chassis 4 on the carry-in side (Y1 side) inside the housing 2. By the rotation of the clamp arm 5, the clamper 13 can move to a clamp posture in which the clamper 13 is pressed against the turntable 12 and a clamp release posture in which the clamper 13 is spaced apart and opposed to the upper side of the turntable 12 as shown in FIG. 6.

  A clamp spring is provided between the drive chassis 4 and the clamp arm 5, and the clamp arm 5 is always biased downward toward the clamp posture by the biasing force of the clamp spring.

  As shown in FIG. 6, the clamper 13 has a metal pressing portion 13a, and a synthetic resin fitting projection 13b is fixed to the central portion of the pressing portion 13a. The fitting protrusion 13b protrudes downward from the center of the pressing part 13a. The fitting protrusion 13b is formed with a fitting recess 13c opened downward. On the pressing portion 13a, a shaft portion 13d integral with the fitting protrusion 13b protrudes, and a pivot 13e is formed at the upper end of the shaft portion 13d.

  A support plate 14 on which the shaft portion 13d of the clamper 13 is rotatably supported is fixed to the clamp arm 5. A leaf spring 15 is fixed to the clamp arm 5, and the pivot 13 e is biased downward by the leaf spring 15.

  The loaded disk D has its center hole fitted with the disk fitting protrusion 12b of the turntable 12, and its lower surface is set on the disk receiving part 12a. When the clamp arm 5 is lowered to the clamping posture, the fitting recess 13c of the clamper 13 is fitted with the clamper fitting projection 12c of the turntable 12, and the fitting projection 13b enters the fitting recess 12d. Then, the pressing portion 13a of the clamper 13 presses the disc D against the disc receiving portion 12a of the turntable 12 by the urging force of the clamp spring member, and the disc D is clamped between the turntable 12 and the clamper 13 Is done.

  When the turntable 12 is rotationally driven by the power of the spindle motor 11, the disk D sandwiched between the turntable 12 and the clamper 13 is rotationally driven. At this time, the clamper 13 rotates around a pivot 13 e that contacts the leaf spring 15.

  A transport mechanism 20 is provided between the insertion port 3 of the housing 2 and the rotation driving unit 10. As shown in FIG. 1, the transport mechanism 20 is provided with a metal roller shaft 21 extending in the X1-X2 direction which is the left-right direction, and an elastic material having a relatively large friction coefficient such as synthetic rubber on the outer periphery of the roller shaft 21. A conveyance roller 22 made of a material is provided. The conveyance roller 22 has a right-left (X1 side) end portion 22a and a left-side (X2 side) end portion 22b having a large diameter and a middle portion 22c having a small diameter, and has a bilaterally tapered shape.

  The conveying mechanism 20 is provided with a clamping member 23 that is opposed to the upper side of the conveying roller 22. The clamping member 23 is made of a synthetic resin material having a low friction coefficient. On the right side (X1 side) of the clamping member 23, there is formed a right clamping part 23a that sandwiches the disk D with the right part of the transport roller 22, and on the left side (X2 side) the disk D with the left part of the transport roller 22 is formed. The left side clamping part 23b which pinches | interposes is formed. The lower surface of the right clamping part 23a is inclined so as to face upward as it goes in the X1 direction, and the lower surface of the right clamping part 23a follows the taper shape of the right part of the conveying roller 22. Similarly, the left clamping part 23b is inclined to follow the taper shape of the left part of the conveying roller 22.

  When the disk D is not interposed, the transport roller 22 can be in close contact with the lower surface of the right clamping unit 23a and the lower surface of the left clamping unit 23b in a long range in the axial direction.

  As shown in FIG. 1, the right end portion of the roller shaft 21 is rotatably supported by a bearing portion 25a provided on the right roller bracket 24a. A support shaft 26a extending in the X1 direction is provided at an end of the right roller bracket 24a on the carry-out side (Y2 side). The support shaft 26a is provided on the right side surface of the housing 2 or in the housing 2. The fixed member is rotatably supported.

  A right spring member 27a is hung on the lower end of the right roller bracket 24a. By the elastic force of the right spring member 27a, the right roller bracket 14a is urged clockwise with the support shaft 26a as a fulcrum, that is, the direction in which the roller shaft 21 is lifted. Due to the urging force of the right spring member 27a, the right peripheral edge (outer peripheral edge) of the disk D inserted from the insertion port 3 is formed between the right tapered portion of the transport roller 22 and the right clamping portion 23a of the clamping member 23. Sandwiched between.

  The left end portion of the roller shaft 21 is rotatably supported by a bearing portion 25b provided on the left roller bracket 24b. A support shaft 26b extending in the X2 direction is provided at the end of the left roller bracket 24b on the carry-out side (Y2 side). The support shaft 26b is provided on the left side surface of the housing 2 or in the housing 2. The fixed member is rotatably supported.

  A left spring member 27b is hung on the lower end of the left roller bracket 24b. The left roller bracket 24b is urged clockwise with the support shaft 26b as a fulcrum by the elastic force of the left spring member 27b, and the left peripheral edge of the disk D is moved by the urging force of the left spring member 27b. It is clamped between the left taper portion and the left clamping part 23 b of the clamping member 23.

  As shown in FIG. 1, a right switching member 31a is provided inside the right side plate of the housing 2, and a left switching member 31b is provided inside the left side plate. The right switching member 31a and the left switching member 31b are moved in synchronization in the Y1 direction which is the carry-in direction and the Y2 direction which is the carry-out direction by the switching motor provided in the housing 2.

  As shown in FIG. 1, a switching cam groove 32a is formed on the inner surface of the right switching member 31a, and an end portion on the right side (X1 side) of the roller shaft 21 is slidably inserted into the switching cam groove 32a. A switching cam groove 32b is also formed on the inner surface of the left switching member 31b, and an end portion on the left side (X2 side) of the roller shaft 21 is slidably inserted into the switching cam groove 32b. The switching cam groove 32a formed in the right switching member 31a and the switching cam groove 32b formed in the left switching member 31b have a plane symmetrical shape.

  The sandwiching member 23 shown in FIG. 1 is supported by a guide mechanism (not shown) provided inside the housing 2 so that it can be moved by a short distance in the vertical direction. Guide protrusions 28a and 28b protrude from the right side (X1 side) end surface and the left side (X2 side) end surface of the clamping member 23, respectively. Guide cam grooves 33a and 34a for guiding the guide protrusions 28a and 28b are formed on the right switching member 31a, and guide cam grooves 33b and 34b for guiding the guide protrusions 28a and 28b are formed on the left switching member 31b. Yes.

  The right switching member 31a and the left switching member 31b have a clamp release for holding the clamp arm 5 biased downward toward the clamp posture in a clamp release posture away from the turntable 12 as shown in FIG. A cam (not shown) is provided.

  When the disk D is loaded, the right switching member 31a and the left switching member 31b are moved in the Y1 direction in synchronization, the right end of the roller shaft 21 is disengaged from the right switching cam groove 32a, and the roller shaft 21 The left end portion is disengaged from the left switching cam groove 32b. Therefore, the right roller bracket 24a is rotated clockwise by the biasing force of the right spring member 27a, and the left roller bracket 24b is rotated clockwise by the biasing force of the left spring member 27b. At the same time, the holding member 23 is slightly lowered by the guide cam grooves 33a and 34a formed in the right switching member 31a and the guide cam grooves 33b and 34b formed in the left switching member 31b.

  Therefore, as shown in FIG. 6, the disc D inserted from the insertion port 3 can be held between the transport roller 22 and the right side holding part 23 a and the left side holding part 23 b of the holding member 23.

  As shown in FIG. 6, the clamp arm 5 is lifted and held in the clamp release posture by the clamp release cams provided on the right switching member 31a and the left switching member 31b.

  When the loading of the disk D is completed, the right switching member 31a and the left switching member 31b are moved in the Y2 direction in synchronization. At this time, the right end portion of the roller shaft 21 is lowered by the switching cam groove 32a of the right switching member 31a, and the left end portion of the roller shaft 21 is lowered by the switching cam groove 32b of the left switching member 31b. At the same time, the holding member 23 is slightly lifted by the guide cam grooves 33a and 34a formed in the right switching member 31a and the guide cam grooves 33b and 34b formed in the left switching member 31b.

  As a result, the conveying roller 22 and the clamping member 23 are separated from the disk D held on the turntable 12 in the vertical direction.

  Further, the clamp release cam is separated from the clamp arm 5, the clamp arm 5 is lowered by the urging force of the clamp spring, and the disk D is clamped between the turntable 12 and the clamper 13.

  As shown in FIG. 1, a driven gear 35 is fixed to the left end (X2 side) of the roller shaft 21. As shown in FIG. 6, when the roller shaft 21 is lifted to a position where the disk D can be clamped, a driven gear 35 (not shown) is engaged. The power of the conveyance motor provided in the housing 2 is applied from the drive gear to the driven gear 35, and the roller shaft 21 is rotationally driven.

As shown in FIG. 1, a holding detection mechanism 40 is provided inside the housing 2.
In the holding detection mechanism 40, a right support moving member 41 and a left support moving member 42 are provided below the transport roller 22. The right support moving member 41 has a shaft hole 41a, and the left support moving member 42 has a shaft hole 42a. As shown in FIG. 2, the left support moving member 42 is supported on the support chassis 6 so as to be rotatable in the α2-β2 direction around the shaft hole 42a. Similarly, the right support moving member 41 is supported on the support chassis 6 so as to be rotatable in the α1-β1 direction around the shaft hole 41a.

  As shown in FIG. 1, the right holding detection pin 43 is fixed upward at the tip of the arm 41 b of the right support moving member 41. A left holding detection pin 44 is fixed upward at the tip of the arm portion 42 b of the left support moving member 42. The right holding detection pin 43 and the left holding detection pin 44 are arranged between the front plate 2 a of the housing 2 and the transport roller 22.

  A right detection member 45 and a left detection member 46 are provided inside the front plate 2 a of the housing 2. Both the right detection member 45 and the left detection member 46 are slidably supported inside the front plate 2a so as to be movable in the X1-X2 direction. The right detection member 45 is urged in the X2 direction by the right holding spring 47, and the left detection member 46 is urged in the X1 direction by the left holding spring 48.

  A connecting elongated hole 45a extending in the Y1-Y2 direction is formed in the right detecting member 45, and a base end portion of the right holding detecting pin 43 is slidably inserted into the connecting elongated hole 45a. A connecting elongated hole 46a extending in the Y1-Y2 direction is formed in the left detecting member 46, and a base end portion of the left holding detecting pin 44 is slidably inserted into the connecting elongated hole 45a.

  When the right detection member 45 is pulled in the X2 direction by the elastic force of the right holding spring 47, the right support moving member 41 is rotated in the α1 direction. When the left detection member 46 is pulled in the X1 direction by the elastic force of the left holding spring 48, the left support moving member 2 rotates in the α2 direction.

  Inside the housing 2, a right detection switch SW1 which is a right detection member and a left detection switch SW2 which is a left detection member are provided. As shown in FIGS. 1 and 5, when the right holding detection pin 43 and the left holding detection pin 44 are in the initial position (a) where they do not hit the disk D, the right and left holding detection pins 43 and left and right holding detection pins 44 The interval in the direction is set to be sufficiently shorter than the diameter of the disk D. At this time, the detection output of the right detection switch SW1 is switched ON by the right detection member 45, and the detection output of the left detection switch SW2 is switched ON by the left detection member 46.

  As shown in FIG. 5, when the disc D is inserted from the insertion port 3, the right holding detection pin 43 is pushed to the right by the outer peripheral edge of the disc D, and the right support moving member 41 rotates in the β1 direction. The right detection member 45 moves in the X1 direction and is removed from the right detection switch SW1, and the detection output of the right detection switch SW1 is switched to OFF. Further, the left holding detection pin 44 is pushed to the left by the outer peripheral edge of the disk D, the left support moving member 42 is rotated in the β2 direction, and the left detection member 46 is moved in the X2 direction to be disconnected from the left detection switch SW2. The detection output of the left detection switch SW2 is switched to OFF.

  FIG. 2 illustrates the left side support moving member 42, the left side holding detection pin 44, and the restraining mechanism 50. 3 and 4 are enlarged sectional views showing the relationship between the left support moving member 42 and the restraining mechanism 50. FIG.

  As shown in FIG. 2, the left support moving member 42 is integrally formed with a sliding ridge 42c that protrudes in a circular shape toward the support chassis 6, and the shaft hole 42a is formed in the sliding ridge 42c. Is open. As shown in FIGS. 2 and 4, the sliding protrusion 42 c is formed with rotation-side pressing protrusions 51 a and 51 b that protrude toward the support chassis 6. As shown in FIG. 2, the rotation-side pressing protrusions 51 a and 51 b are positioned side by side on a rotation reference line L 0 connecting the center of the shaft hole 42 a and the axis of the left holding detection pin 44.

  As shown in FIG. 2, the support chassis 6 is integrally formed with a circular pedestal raised portion 6a protruding upward, and a support hole 6b is opened in the pedestal raised portion 6a. A pair of fixed-side pressing protrusions 52a and 52b protrude from the base protruding portion 6a to the outside thereof. The fixed-side pressing protrusions 52a and 52b are arranged on the left fixed reference line L2, and the fixed-side pressing protrusions 52a and 52b are formed to protrude in a short straight line along the left fixed reference line L2. . As shown in FIG. 5, the left fixed reference line L <b> 2 is an imaginary straight line that extends obliquely from the rotation center O <b> 1 of the turntable 12 toward the insertion port 3.

  As shown in FIGS. 2, 3 and 4, the left support moving member 42 is rotatably attached to the support chassis 6 by a support member 53. The support member 53 is made of metal, and includes a support shaft portion 53a, a fixed shaft portion 53b that is thinly formed at the base portion of the support shaft portion 53a, and a flange portion 53c that is formed at the upper portion of the support shaft portion 53a. ing. The support shaft portion 53a is inserted into the shaft hole 42a formed in the left support moving member 42, and the lower end of the support shaft portion 53a is abutted against the surface of the base raised portion 6a of the support chassis 6 so that the fixed shaft portion 53b. Is inserted into the support hole 6 b of the support chassis 6. The support member 53 is fixed to the support chassis 6 by causing the lower end portion of the fixed shaft portion 53 b to be caulked and deformed on the back surface of the support chassis 6.

  As shown in FIG. 3, when the rotation reference line L0 set on the left support moving member 42 is far away from the left fixed reference line L2 set on the support chassis 6, the rotation side pressing protrusions 51a, 51b and the fixed-side pressing protrusions 52a and 52b do not face each other. Therefore, the left side support moving member 42 has a movement allowance δ in the vertical direction with respect to the support member 53.

  As shown in FIG. 4, when the left support moving member 42 rotates and the rotation reference line L0 coincides with the left fixed reference line L2, the rotation-side pressing protrusions 51a and 51b become the fixed-side pressing protrusions 52a and 52b. After climbing up, the left side support moving member 42 is pressed upward and restrained, and is held without being rattled up and down. When the left support moving member 42 rotates, the angle range in which the rotation-side pressing protrusions 51a and 51b ride on the fixed-side pressing protrusions 52a and 52b is short, and the time (regulation time) is also short.

  In this embodiment, the restraining mechanism 50 is configured by the rotation-side pressing protrusions 51 a and 51 b formed on the left support moving member 42, the fixed-side pressing protrusions 52 a and 52 b and the support member 53 formed on the support chassis 6. Has been.

  As shown in FIG. 1, the right support moving member 41 is also integrally formed with a downward sliding ridge 41c, and a shaft hole 41a is opened in the sliding ridge 41c. Although not shown in the figure, as shown in FIG. 2, the sliding protrusion 41c is provided with the rotation-side pressing protrusions 51a and 51b, and the rotation-side pressing protrusions 51a and 51b are connected to the shaft hole 41a. They are arranged side by side on a rotation reference line L0 connecting the center and the axis of the right holding detection pin 43.

  The support chassis 6 is formed with the same pedestal raised portion 6a and support hole 6b as shown in FIG. 2 in the portion supporting the right support moving member 41, and the fixed-side pressing protrusion 52a aligned on the right-side fixed reference line L1. , 52b are formed. The size and shape of the fixed-side pressing protrusions 52a and 52b are the same as those provided on the left side shown in FIG. As shown in FIG. 5, the right fixed reference line L <b> 1 is an imaginary straight line that extends obliquely from the rotation center O <b> 1 of the turntable 12 toward the insertion port 3.

  At a short angle before and after the rotation reference line L0 of the right support moving member 41 coincides with the right fixed reference line L1, the rotation-side pressing protrusions 51a and 51b are fixed to the fixed-side pressing protrusions 52a and 52b for a short time (regulation time). The right support moving member 42 is lifted up and restrained. Otherwise, as in FIG. 3, the right support moving member 42 has a vertical movement allowance δ.

  In FIG. 5, the opening angle between the right fixed reference line L1 and the left fixed reference line L2 is formed by θ. In FIG. 5, the movement locus of the center Od of the disk D when the disk D is transported toward the inside of the housing 2 by the transport mechanism 20 is indicated by Om. The right fixed reference line L1 and the left fixed reference line L2 are arranged at the same angle on the left and right with respect to the movement locus Om.

  As shown in FIG. 2, a left holding member 62 is rotatably inserted into the left holding detection pin 44 fixed to the left support moving member 42. The left holding member 62 is made of synthetic resin, and is provided with an upper tapered portion 62b and a lower tapered portion 62c. The upper taper portion 62b and the lower taper portion 62c have a shape in which the diameter becomes the smallest at the boundary portion 62a and gradually increases as the distance from the boundary portion 62a increases. The upper taper portion 62b and the lower taper portion 62c function as a concave portion that holds the outer peripheral edge of the disk D.

  As shown in FIGS. 1 and 6, the right holding member 61 is also rotatably inserted into the right holding detection pin 43 fixed to the right support moving member 41. The shape of the right holding member 61 is the same as that of the left holding member 62, and includes a boundary portion 61a, an upper tapered portion 61b, and a lower tapered portion 61c.

Next, the operation of the disk device 1 will be described.
When waiting for the insertion of the disk D, the right switching member 31a and the left switching member 31b shown in FIG. 1 are moved together in the Y1 direction in synchronization, and the right end of the roller shaft 21 is on the right switching cam groove 32a. The left end portion of the roller shaft 21 is separated from the left switching cam groove 32b. Further, the holding member 23 is slightly lowered by the guide cam grooves 33a and 34a formed in the right switching member 31a and the guide cam grooves 33b and 34b formed in the left switching member 31b.

  Since the restriction on the roller shaft 21 is released, the right roller bracket 24a is rotated clockwise by the biasing force of the right spring member 27a, and the left roller bracket 24b is rotated clockwise by the biasing force of the left spring member 27b. Thus, the roller shaft 21 is lifted, and the conveying roller 22 is pressed against the lower surface of the clamping member 23 as shown in FIG.

  When the disk D is not inserted, the right holding detection pin 43 is moved to the movement end in the X2 direction by the right holding spring 47, and the right support moving member 41 is rotated in the α1 direction. The left holding detection pin 44 is moved to the end of movement in the X1 direction by the left holding spring 48, and the left support moving member 42 is rotated in the α2 direction. At this time, the right holding detection pin 43 and the left holding detection pin 44 are at the initial position (a) shown in FIG. The right detection member 45 moves to the X2 side together with the right holding detection pin 43, and the left detection member 46 moves to the X1 direction together with the left holding detection pin 44. The detection outputs of the right detection switch SW1 and the left detection switch SW2 are both ON.

  When the right holding detection pin 43 and the left holding detection pin 44 are in the initial position (a), the rotation reference line L0 set for the left support moving member 42 is out of the left fixed reference line L2, and the rotation side The pressing protrusions 51a and 51b and the fixed-side pressing protrusions 52a and 52b do not coincide with each other, and the left support moving member 42 has a vertical movement margin δ as shown in FIG. Similarly, the right support moving member 41 also has a movement allowance δ in the vertical direction.

  As shown in FIG. 5 (i), when the disc D is inserted into the insertion port 3 of the housing 2, the right holding detection pin 43 is pushed to the right (X1 side) by the outer peripheral edge of the disc D, and the right side The detection member 45 moves to the right side and the right side detection switch SW1 is switched to OFF. Further, the left holding detection pin 44 is pushed to the left (X2 side), the left detection member 46 moves to the left, and the left detection switch SW2 is turned OFF.

  When either one of the detection switches SW1 and SW2 is turned OFF, the control unit determines that the disk D is inserted, the transport motor is started, the power is decelerated and transmitted to the driven gear 35, and together with the driven gear 35 The roller shaft 21 starts to rotate in the loading direction (counterclockwise in FIG. 6).

  In addition to the detection switches SW1 and SW2, an optical detection member that detects the insertion of the disk D may be provided, and the transport motor may be started when the optical detection member detects the disk.

  When the transport motor is started, the disk D is drawn between the transport roller 22 and the sandwiching member 23 by the rotational force of the transport roller 22, and the disc between the right side portion of the transport roller 22 and the right sandwiching portion 23 a of the sandwiching member 23 is The peripheral edge on the right side of D is clamped, and the peripheral edge on the left side of the disk D is clamped by the left side portion of the transport roller 22 and the left side clamp part 23b. Then, by the rotation of the transport roller 22, the center D of the disk D is transported in the Y1 direction along the movement locus Om.

  While the disk D is transported in the Y1 direction, the outer peripheral edge of the disk D slides with the right holding member 61 provided on the right holding detection pin 43, and the left side provided on the left holding detection pin 44. By sliding with the holding member 62, the distance between the right holding detection pin 43 and the left holding detection pin 44 is increased as the disk D is transported.

  As shown in FIG. 6, the outer peripheral edge on the right side of the disk D being transported is easily held at the boundary 61 a between the upper tapered part 61 b and the lower tapered part 61 c, and the left outer peripheral edge of the disk D is the left holding member 62. The upper taper portion 62b and the lower taper portion 62c are easily held at the boundary portion 62a. Therefore, the disc D is sandwiched from above and below by the transport roller 22 and the sandwiching member 23, and is further sandwiched and held by the right holding member 61 and the left holding member 62 from the left and right on the insertion port 3 side. It is conveyed in the Y1 direction.

  While the disk D is conveyed from the position (i) shown in FIG. 5 to the position (ii), that is, the rotation reference line L0 of the left side support moving member 42 shown in FIG. 2 is shown in FIGS. As shown in FIG. 3, the left side support moving member 42 until the left side fixed reference line L2 and until the rotation reference line L0 of the right side support moving member 41 coincides with the right side fixed reference line L1. The right support moving member 41 has a movement allowance δ in the vertical direction.

  When the disk D is transported while being restrained from above and below by the transport roller 22 and the sandwiching member 23, the right holding member 61 and the left holding member 62 can move up and down as the disk D swings. It is possible to prevent the right holding member 61 and the left holding member 62 from inadvertently applying a restraining force to the disk D sandwiched from the disk D, and to prevent an excessive bending stress from acting on the disk D being conveyed. it can. Further, since the right holding member 61 and the left holding member 62 holding the disk D can freely move up and down, it is easy to prevent an increase in the disk transport load.

  When the disk D is loaded to the position (ii) in FIG. 5, the left support moving member 42 rotates in the β2 direction, and the rotation reference line L0 coincides with the left fixed reference line L2. As shown in FIG. 4, the rotation-side pressing protrusions 51a and 51b of the left support moving member 42 ride on the fixed-side pressing protrusions 52a and 52b of the support chassis 6, and the left support moving member 42 is lifted up. Be bound. At the same time, the rotation reference line L0 of the right support moving member 41 coincides with the right fixed reference line L1, and the right support moving member 41 is lifted and restrained.

  As shown in FIG. 2, since the rotation-side pressing protrusions 51a and 51b and the fixed-side pressing protrusions 52a and 52b have small dimensions in the rotation direction, the right support moving member 41 and the left support are supported when the disk D is loaded. The regulation time during which the moving member 42 is lifted and restrained is short.

  As shown in FIG. 6, the regulation time is from immediately before the leading end of the loaded disk D reaches the fitting protrusion 13b of the clamper 13 until the leading edge of the disk moves below the fitting protrusion 13b. Set as the time.

  During the regulation time, the disk D is sandwiched from above and below by the conveying roller 22 and the sandwiching member 23, and the outer peripheral edge on the right side of the disk D is lowered with the upper tapered portion 61b of the right holding member 61 lifted upward. It is held at the boundary portion 61a with the side taper portion 61c and is held at the boundary portion 62a between the upper taper portion 62b and the lower taper portion 62c of the left holding member 62 that is also lifted upward. Therefore, the front end of the conveyed disk D is regulated so as to be stabilized in a slightly downward posture and moves in the Y1 direction. Therefore, it becomes easy to prevent the front end of the disk D from hitting the fitting protrusion 13b of the clamper 13.

  When the front end of the disk D enters under the fitting protrusion 13b, the regulation time is completed, and as shown in FIG. 3, the left side support moving member 42 and the right side support moving member 41 again move up and down again. has δ. After that, the right holding member 61 and the left holding member 62 can follow the swing of the disk D, and it is possible to prevent an inadvertent stress from acting on the disk D being transported and an increase in the transport load. .

  As shown in (iii) in FIG. 5, when the transported disk D is sent to the normal loading position in the housing 2, the outer peripheral edge of the disk D is placed on the stopper 71 provided at the rear of the housing 2. The disk D is positioned by contact.

  When the detection member (not shown) detects that the disk D has reached the position (iii), the right switching member 31a and the left switching member 31b shown in FIG. 1 move in the Y2 direction in synchronization, and the right switching member 31a. The switching cam groove 32a and the switching cam groove 32b of the left switching member 31b lower the roller shaft 21 so that the conveying roller 22 is separated from the disk D. At the same time, the holding member 23 is lifted by the guide cam grooves 33a, 34a provided in the right switching member 31a and the guide cam grooves 33b, 34b provided in the left switching member 31b, and the holding member 23 is separated from the disk D. . Further, the clamp arm 5 is lowered, the center portion of the disk D is sandwiched between the turntable 12 and the clamper 13, and the disk D is clamped to the turntable 12.

  When the loading of the disk D is completed, the right holding detection pin 43 and the left holding detection pin 44 approach each other and return to the initial position (a).

  The turntable 12 and the disk D are rotated by the driving force of the spindle motor 11, and information recorded on the disk D is reproduced or recorded on the disk D by an optical head (not shown).

  Next, when the disk D in the housing 2 is carried out, after the spindle motor 11 stops, the right switching member 31a and the left switching member 31b shown in FIG. 1 move in the Y1 direction, and the roller shaft 21 is lifted again. Then, the clamping member 23 is lowered, and the disk D is clamped between the transport roller 22 and the clamping member 23. Further, the clamp arm 5 is lifted to release the clamp of the disk D, the transport motor is started, the roller shaft 21 rotates in the clockwise direction in FIG. 6, and the disk D is carried out from the insertion port 3.

  As shown in FIG. 4, the restriction time during which the left support moving member 42 and the right support moving member 41 are restrained is immediately before the leading end of the loaded disk D reaches the fitting protrusion 13 b of the clamper 13. The time until the clamp fitting protrusion 12c provided on the turntable 12 is reached may be set. Alternatively, the regulation time may be set as a time from immediately before the tip of the disk D reaches the disk fitting protrusion 12b of the turntable 12 until it reaches the clamper fitting protrusion 12c. Further, the front end of the disk D is turned from immediately before the front end of the disk D reaches the rotary drive unit 10, that is, immediately before the front end of the disk D reaches the top of the turntable 12 or immediately below the clamper 13. It may be set until the projection on either the table 12 or the clamper 13 passes through the end on the Y2 side.

  Contrary to the above-described embodiment, the right support moving member 41 and the left support moving member 42 may be restrained by being pushed downward during the regulation time.

  The right holding member 61 and the left holding member 62 may have any shape as long as the outer peripheral edge of the disk D can be held. For example, the right holding member 61 and the left holding member 62 are formed in a cylindrical shape (ring shape) with an elastic body such as synthetic rubber. The disk D may be held by the frictional force between the outer peripheral surface and the disk D.

DESCRIPTION OF SYMBOLS 1 Disc apparatus 2 Housing | casing 3 Insertion slot 4 Drive chassis 5 Clamp arm 6 Support chassis 6a Base raised part 6b Support hole 10 Rotation drive part 12 Turntable 12b Disc fitting protrusion 12c Clamper fitting protrusion 13 Clamper 13b Fitting protrusion Section 20 Conveying mechanism 21 Roller shaft 22 Conveying roller 23 Holding member 24a Right roller bracket 24b Left roller bracket 27a Right spring member 27b Left spring member 31a Right switching member 31b Left switching member 32a, 32b Switching cam groove 40 Holding detection mechanism 41 Right support Moving member 41a Shaft hole 41c Sliding raised portion 42 Left support moving member 42a Shaft hole 42c Sliding raised portion 43 Right holding detection pin 44 Left holding detection pin 47 Right holding spring 48 Left holding spring 50 Restraining mechanisms 51a and 51b Rotating side Pressing protrusions 52a and 52b Jogawa pressing projections 53 support member 61 right holding member 62 left holding member D disk SW1, SW2 detection switch

Claims (7)

In a disk device including a rotation driving unit that holds and rotates the center of the disk, and a transport mechanism that transports the disk inserted from the insertion port of the housing toward the rotation driving unit.
A pair of holding members disposed on both sides sandwiching the movement trajectory of the center of the disk conveyed toward the rotational drive unit, and a direction in which the holding member is individually supported and the holding member hits the outer peripheral edge of the disk A supporting and moving member that moves, and a biasing member that biases each of the holding members in a direction to hit the outer peripheral edge of the disk,
Immediately before the leading end of the disk reaches the rotation driving unit, or when the leading end of the disk moves to a position overlapping the rotation driving unit, the support moving member is restrained and held by the holding member for a predetermined regulation time. A disc device comprising a restraining mechanism for restricting the movement of the tip of the disc.   2. The disk according to claim 1, wherein the support moving member is pressed in any direction crossing the surface of the disk by the restraining mechanism, and the leading end of the disk is regulated in any direction crossing the surface of the disk. apparatus.   3. The disk device according to claim 1, wherein the support moving member can move in a direction crossing the surface of the disk except for the regulation time.   The restraint mechanism is provided with a pressing projection that presses the support moving member during the regulation time, and the pressing projection is provided on at least one of the support moving member and a chassis that supports the pressing movement member. Item 4. The disk device according to any one of Items 1 to 3.   5. The disk device according to claim 1, wherein the pressing member has a recess that restricts an outer peripheral edge of the disk in a thickness direction of the disk.   The disk device according to claim 1, wherein the pressing member is disposed between the insertion port and the transport mechanism.   7. The disk device according to claim 1, further comprising a detection member that operates when the pressing member is moved by being pushed by an outer peripheral edge of the disk.

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