JP2010160875A - Driving device assembly and disk device with the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To accurately mount a motor main part assembly having a motor driving device to a head main part assembly having a head driving device. <P>SOLUTION: A driving device assembly 5 is provided which is equipped with the head main part assembly 10 having the head driving device 30 and the motor main part assembly 50 having the motor driving device 70. The motor main part assembly 50 is mounted on the head main part assembly 10 so as to be turning-adjustable. Fixtures 81, 82 are provided for fixing or temporarily fixing the motor main part assembly 50 to the head main part assembly 10. Fixing sections 21, 22 for positioning, which are used when the motor main part assembly 50 is fixed to the head main part assembly 10, are provided in the head main part assembly 10, and fixing sections 61, 62 for positioning, which are used when the motor main part assembly 50 is fixed to the head main part assembly 10, are provided on the motor main part assembly 50 in association with the fixing sections 21, 22 for positioning the head main part assembly 10. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a drive device assembly and a disk device including the drive device assembly.

  For example, as related to an optical pickup device such as a conventional head drive device, the number of parts is reduced by using an adhesive such as solder as means for fixing the actuator base to the pickup housing after adjusting the tilt of the objective lens. There is an optical pickup device that can achieve the above effect (see, for example, Patent Document 1).

JP 2001-319343 A (pages 1, 6 and 1-7)

  However, in the conventional optical pickup device described above, when the actuator base is fixed to the pickup housing, it is difficult to accurately position the pickup housing on the actuator base. For example, a drive device assembly including a head drive device such as an optical pickup device is required to be assembled with higher accuracy. Further, the drive device assembly constituting the disk device is also required to be assembled with higher accuracy.

  According to a first aspect of the present invention, there is provided a drive device assembly comprising a head main body assembly having a head drive device and a motor main body assembly having a motor drive device, wherein the motor is mounted on the head main body assembly. The main body assembly is attached so as to be rotatable.

  The drive device assembly according to claim 2 is the drive device assembly according to claim 1, further comprising a stopper that temporarily fixes or fixes the motor main body assembly to the head main body assembly. To do.

  A drive device assembly according to a third aspect is the drive device assembly according to the first or second aspect, wherein the motor main body assembly is rotated with respect to the head main body assembly. A rotation center portion is provided in the head main body assembly, and the motor main body assembly is rotated with respect to the head main body assembly corresponding to the rotation center portion of the head main body assembly. The motor main body assembly is provided with a rotation central portion that is a center when the motor is assembled.

  A drive device assembly according to a fourth aspect is the drive device assembly according to the third aspect, wherein the rotation center portion includes a rotation center axis, and the rotation center portion is a rotation center. It is characterized by including a hole.

  The drive device assembly according to claim 5 is the drive device assembly according to claim 3, wherein the rotation center portion includes a rotation center hole, and the rotation center portion is a rotation center. It is characterized by comprising an axis.

A drive device assembly according to a sixth aspect is used when the motor main body assembly is fixed to the head main body assembly in the drive device assembly according to any one of the first to fifth aspects. A positioning fixing portion is provided in the head main body assembly, and the motor main body assembly is fixed to the head main body assembly corresponding to the positioning fixing portion of the head main body assembly. An alignment fixing portion to be used is provided in the motor main body assembly.

  The drive device assembly according to claim 7 is the drive device assembly according to claim 6, wherein the positioning fixing portion is rotated when the motor main body assembly is rotated with respect to the head main body assembly. The alignment unit is provided substantially along a substantially circular axis centering on a rotation center part of the head main body assembly, which is the center of the head main body assembly. The motor main body assembly is provided substantially along a substantially circular axis centering on a rotation center portion of the motor main body assembly, which is a center when the main body assembly is rotated.

  The drive device assembly according to claim 8 is the drive device assembly according to claim 6 or 7, wherein the positioning fixing portion includes a female screw hole, and the alignment fixing portion is substantially long. It is characterized by including a circular hole.

  A drive device assembly according to a ninth aspect is the drive device assembly according to the sixth or seventh aspect, wherein the positioning fixing portion includes a substantially oval hole, and the positioning fixing portion includes: It is characterized by including a female screw hole.

  A drive device assembly according to a tenth aspect is the drive device assembly according to any one of the sixth to ninth aspects, wherein the head main body assembly is temporarily fixed or fixed to the head main body assembly. After the positioning fixing portion and the positioning fixing portion are aligned, the head main body portion is provided by the stopper provided in the positioning fixing portion and the positioning fixing portion. The motor main body assembly is temporarily fixed or fixed to the assembly.

  The drive device assembly according to an eleventh aspect is the drive device assembly according to the tenth aspect, wherein the stopper includes a male screw.

  A drive device assembly according to a twelfth aspect is the drive device assembly according to any one of the first to eleventh aspects, wherein the motor main body assembly is rotated and adjusted with respect to the head main body assembly. The head main body assembly is provided with a rotation adjustment portion used for the head main body assembly, and the motor main body assembly is disposed with respect to the head main body assembly corresponding to the rotation adjustment portion of the head main body assembly. The motor main body assembly is provided with a rotation adjusting portion used when the rotation is adjusted.

  A drive device assembly according to a thirteenth aspect is the drive device assembly according to the twelfth aspect, wherein the rotation adjusting unit rotates the motor main body assembly relative to the head main body assembly. Corresponding to the rotation adjustment center hole corresponding to the rotation adjustment center shaft portion of the rotation jig used for the rotation jig and the rotation adjustment shaft portion of the rotation jig arranged in parallel to the rotation adjustment center shaft portion A rotation adjustment hole portion, and the rotation adjustment portion has a rotation adjustment hole portion corresponding to the rotation adjustment shaft portion.

  A drive device assembly according to a fourteenth aspect is the drive device assembly according to the thirteenth aspect, wherein the rotation adjustment center hole portion includes a substantially circular hole, and the rotation adjustment hole portion includes: The rotation adjusting hole portion is configured to include a substantially circular hole.

The drive device assembly according to claim 15 is the drive device assembly according to any one of claims 1 to 14, wherein the head main body assembly and the motor main body assembly are viewed in plan. In addition, a central axis between the signal reading unit / writing unit central part of the head driving device and a rotation shaft central part of the motor driving device and a central axis of the head device movement along the moving direction of the head driving device. Are substantially the same.

  The drive device assembly according to claim 16 is the drive device assembly according to any one of claims 1 to 15, wherein the head main body assembly and the motor main body assembly are viewed in plan. A signal reading / writing unit central part of the head driving device, a rotation shaft central part of the motor driving device, and a center when the motor main body assembly is rotated with respect to the head main body assembly. Rotation center of the head main body assembly and / or rotation of the motor main body assembly as a center when the motor main body assembly is rotated with respect to the head main body assembly. The central portion is arranged in parallel on a substantially straight line.

  A disc device according to a seventeenth aspect includes the drive device assembly according to any one of the first to sixteenth aspects.

  According to the present invention, the motor main body assembly having the motor driving device is accurately attached to the head main body assembly having the head driving device.

  In addition, according to the present invention, it is possible to provide a disk device including a drive device assembly in which a motor main body assembly having a motor drive device is accurately attached to a head main body assembly having a head drive device. It becomes.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows one Embodiment of the drive device assembly which concerns on this invention, and a disc apparatus provided with the same, (A) is a top view which shows a drive device assembly and a disc apparatus provided with the same, (B) is a drive device It is the schematic which shows the state which looked at the assembly and the disk apparatus provided with the same from the motor main part assembly side. It is explanatory drawing which shows a part of drive apparatus assembly of FIG. 1 (B), and a disk apparatus provided with the same. It is a perspective view which shows a drive device assembly and a disk apparatus provided with the same. It is a side view which shows the movable part of the drive device of a pick-up apparatus. (A) is sectional drawing of the one side which shows the fixing | fixed part of the drive device of a pick-up apparatus, (B) is sectional drawing of the other side which shows the fixing | fixed part of the driving device of a pick-up apparatus. It is the schematic which shows a drive device assembly and a disk apparatus provided with the same.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a drive device assembly and a disk device including the same according to the present invention will be described below in detail with reference to the drawings.

  1 to 6 show an embodiment of a drive device assembly and a disk device having the drive device assembly according to the present invention.

The head main body assembly 10 constituting the drive device assembly 5 includes a substantially flat base portion 20 and a pair of long round bar-like supports 31 and 32 attached to the substantially flat base portion 20. And a head drive device 30 that is movably mounted on a pair of long round bar-like supports 31 and 32. The head driving device 30 includes a pair of optical members 131 and 132 that irradiate the signal surface Ma of the disk M, which is one of the media M, with light such as laser light in focus. ing. Media is, for example, data,
It means a disk or the like on which information, signals, etc. are stored.

  The motor main body assembly 50 constituting the driving device assembly 5 includes a substantially flat substrate 60 having a circuit (not shown) and a motor attached to the substantially flat substrate 60 so as to be energized. And a driving device 70. The motor driving device 70 includes a small electric motor 71 that generates a rotational driving force, a rotating shaft 72 provided in the small electric motor 71, and a rotation holding unit 73 that is mounted on the rotating shaft 72 and on which the disk M is mounted. And is configured.

  Further, as the drive device assembly 5 and the disk device 1 including the drive device assembly 5, for example, a traverse mechanism 5 and the optical disk device 1 including the same are used.

  As an example of the pickup device 100 shown in FIGS. 1, 3, and 6, an optical pickup device 100 that can emit laser light (LASER: light amplification by stimulation of radiation) via optical members 131 and 132 that are objective lenses, for example. It is used. For example, an optical pick-up or an optical pick-up unit is abbreviated as “OPU”. Further, the objective lens is abbreviated as “OBL”, for example.

  Data such as information recorded on a medium M such as a disc (M) is reproduced by a laser beam focused by the OBLs 131 and 132 of the OPU 100 provided in the drive unit assembly 5 of the disc apparatus 1. Further, data such as information is recorded on the medium M such as the disk M by the laser light focused by the OBLs 131 and 132 of the OPU 100 provided in the drive device assembly 5 of the disk device 1. Further, data such as information recorded on the medium M such as the disk M is erased by the laser light focused by the OBLs 131 and 132 of the OPU 100 provided in the drive device assembly 5 of the disk device 1.

  The OPU 100 that constitutes the drive unit assembly 5 of the disk device 1 reproduces data, information, and signals recorded on various media M such as various disks M, and various media such as various disks M that are writable or rewritable. Data, information, and signals are recorded in M, and data, information, and signals of various media M such as various writable or rewritable discs M are erased.

  The OPU 100 that constitutes the drive unit assembly 5 of the disk device 1 includes, for example, “CD” (Compact Disc) (trademark) series media, “DVD” (registered trademark) (Digital Versatile Disc) series media, , "HD DVD" (High Definition DVD) (registered trademark) series media and "CBHD (China Blue High-Definition)" (e.g., former name "CH-DVD"), which is a media based on a standard defined in China ) Series media and “BD” (Blu-ray Disc) (registered trademark) series media. The OPU 100 that constitutes the drive device assembly 5 of the disk device 1 corresponds to, for example, at least one medium selected from the group consisting of the various media. More specifically, the OPU 100 constituting the drive device assembly 5 of the disk device 1 corresponds to any one of the plurality of media.

Examples of the medium M include the above-described various optical discs M, and a medium M having the following form is also included. For example, the disk M may be an optical disk M provided with a signal surface portion Ma on both sides of the disk and capable of data writing / erasing and data rewriting. Further, as the disk M, for example, an optical disk M provided with a two-layer signal surface portion Ma and capable of data writing / erasing, data rewriting and the like can be cited. Further, for example, there is also an “HD DVD” optical disc (not shown) provided with a three-layer signal surface portion and capable of data writing / erasing and data rewriting. Further, for example, a “Blu-ray Disc” optical disc provided with a four-layer signal surface portion and capable of data writing / erasing, data rewriting, and the like (not shown) is also included. In addition, for example, an optical disk (M) that can perform various writing on the label or the like by irradiating a laser beam on the side of the label surface of the optical disk (M). In addition, the parentheses () attached to the reference numerals in this specification are used for convenience in order to explain the slightly different things from those shown in the drawings. The signal surface portion Ma and the label surface portion of the optical disc M are configured to include a thin layer such as a metal thin film, for example. Data, information, a signal, etc. are recorded on the signal surface part Ma comprised with a metal thin film etc., and an image etc. are recorded on a label surface part. The signal surface portion Ma of the optical disc M is configured as a signal layer Ma including a thin metal layer, for example.

  Further, as the disk device 1 shown in FIGS. 1, 3, and 6, for example, an optical disk device 1 capable of emitting laser light is used. More specifically, as the disk device 1, for example, an optical disk device 1 corresponding to various optical disks M such as “CD”, “DVD”, “HD DVD”, “CBHD”, “BD”, and the like is used. Further, as the driving device assembly 5 constituting the disk device 1, for example, in the radial direction of the optical disk M so as to cross a substantially spiral signal portion (not shown) such as pits and tracks of the optical disk M. A traverse mechanism 5 is used that is configured so that the OPU 100 can be reciprocated along a substantial distance.

  Further, as the OPU 100 constituting the optical disc device 1 or the traverse mechanism 5, for example, an OPU 100 corresponding to the various optical discs M is used. Further, as the support members 31 and 32 that constitute the optical disc apparatus 1 or the traverse mechanism 5 and support the OPU 100 movably, for example, slide shafts 31 and 32 having a substantially straight round bar shape are used.

  As the drive device 40 that rotates the optical disk M, a disk drive device 40 that includes a spindle motor 71, a turntable 73, and the like and that rotates the optical disk M is used. The turntable 73 provided on the spindle motor 71 of the drive device 40 has both functions of aligning the optical disk M and ensuring stabilization during high-speed rotation of the optical disk M.

  Further, as the base part 20 constituting the optical disc apparatus 1 or the traverse mechanism 5, for example, a pair of supports 31, 32 on which the OPU 100 is movably mounted, a drive apparatus 40 having a spindle motor 71, a turntable 73, and the like. The substantially flat chassis 20 is used. The chassis means a built-in table on which, for example, components are mounted.

  The optical disc apparatus 1 includes the traverse mechanism 5 having the OPU 100, the slide shafts 31 and 32, the disc drive apparatus 40, and the chassis 20. The optical disk device 1 and the traverse mechanism 5 constituting the disk device 1 are configured to include other components in addition to the various components described above, but detailed description of the other components is omitted here.

A plurality of coils 151, 152, 153 (corresponding to a plurality of OBLs 131, 132 (FIGS. 1, 3, 4), a holding member 140 (FIG. 4), and a plurality of magnetic members 171, 176 (FIGS. 3, 5) 4), a driving main body 193 configured by attaching a plurality of OBLs 131, 132, a plurality of coils 151, 152, 153, etc. to the holding member 140, and a plurality of supporting members 161, 162 supporting the driving main body 193. 163, 164, 165, 166 (FIG. 4) / 160 (FIG. 3) constitute a movable portion 191 (FIG. 4) of the driving device 190 of the OPU 100. Further, the pair of magnetic members 171 and 176 (FIGS. 3 and 5) and the set of fixing members 180 constitute a fixing portion 195 of the driving device 190 (FIG. 5) of the OPU 100. A driving device 190 (FIGS. 4 and 5) of the OBLs 131 and 132 of the OPU 100 (FIGS. 1, 3 and 6) is configured as an actuator 190 including the fixed portion 195 and the movable portion 191, for example. Further, a driving main body constituted by attaching two OBLs 131 and 132 and a total of six coils 151, 151, 152, 152, 153, 153 and the like to the holding member 140 (FIG. 4) so-called lens holder 140. The portion 193 is, for example, a lens / holder assembly 193.

  Information is recorded on the optical disc M (FIG. 6) by a laser beam emitted from an optical member (not shown) constituting the light emitting element when current is supplied to an optical member (not shown) constituting the light emitting element. The information recorded on the optical disc M is reproduced, or the information recorded on the optical disc M is erased. Examples of the light emitting element include a semiconductor laser.

  The OPU 100 shown in FIGS. 1, 3, and 6 includes an optical member so-called laser diode (LD) (not shown) that irradiates the optical disc M (FIG. 6) with laser light. The OPU 100 also includes a drive circuit unit so-called laser driver (LDD: LD driver) (not shown) that allows the LD to emit light by flowing electricity. Further, the OPU 100 includes a flexible substrate (not shown) such as a flexible printed circuit body (not shown) that connects an electrical system component such as an LD and an electrical system component such as an LDD so that energization is possible. A flexible printed circuit body (Flexible Printed Circuit) is abbreviated as “FPC”.

  For example, electricity is flowed from the LDD (not shown) to the LD through the FPC, and laser light is output from the LD. For example, a laser beam of 0.2 to 1000 mW (milliwatt) for “CD” capable of emitting an infrared laser beam having a wavelength of about 765 to 840 nm (nanometer) and a reference wavelength of about 780 nm is emitted from the LD. Is done. Further, for example, 0.2 to 1000 mW laser light for “DVD” that can emit red laser light having a wavelength of about 630 to 685 nm and a reference wavelength of about 635 nm or 650 nm is emitted from the LD. The LD includes, for example, a first wavelength laser beam having a reference wavelength of approximately 780 nm and a wavelength of approximately 765 to 840 nm, and a second wavelength having a reference wavelength of approximately 635 nm or 650 nm and a wavelength of approximately 630 to 685 nm. And a two-wavelength LD capable of emitting a wavelength laser beam.

  Depending on the design / specifications of the optical disc device 1, OPU 100, etc., for example, the wavelength is about 340 to 450 nm, preferably about 380 to 450 nm, more preferably more than about 400 nm to 450 nm or less, and the reference wavelength is about 405 nm. Laser light of 0.2 to 1000 mW for “CBHD”, “HD DVD”, and “Blu-ray Disc” capable of emitting laser light is emitted from the LD. In this case, the LD has, for example, a first wavelength laser beam having a reference wavelength of about 780 nm and an emission wavelength of about 765 to 840 nm, a reference wavelength of about 635 nm or 650 nm, and an emission wavelength of about 1. It is possible to emit laser beams of a plurality of types of wavelengths: a second wavelength laser beam of approximately 630 to 685 nm and a third wavelength laser beam having a reference wavelength of approximately 405 nm and an emission wavelength of approximately 340 to 450 nm. It is configured as a special LD. Further, as the LD, various LDs such as a single wavelength LD capable of emitting the laser light of each wavelength can be used. Further, as the LD, an LD capable of emitting laser light having at least one of the above wavelengths can be used.

For example, a laser beam having an output value of 0.2 to 1000 mW, specifically 0.5 to 800 mW is emitted from the LD. For example, when the laser light has an output value of less than 0.2 mW, the amount of laser light that is reflected after reaching the optical disc M and reaches a light receiving element (not shown) is insufficient. When reproducing each data on the optical disc M, a laser beam having an output value of several to several tens of mW, for example, 0.2 mW or more, preferably 0.5 mW or more and 20 mW or less is sufficient. When writing each data or the like on the optical disc M, a laser beam having an output value of several tens to several hundreds mW is required. For example, when writing each data or the like on the optical disc M at high speed, a pulse laser beam having a high output value of more than 20 mW, specifically 200 mW, 400 mW, 600 mW, 800 mW, 1000 mW, or the like may be required.

  Further, as the optical members 131 and 132 constituting the OPU 100, substantially convex OBLs 131 and 132 for condensing laser light (not shown) on the signal surface portion Ma of the medium M such as the optical disc M are used.

  The OPU 100 includes a pair of OBLs 131 and 132 that squeeze the laser light to irradiate and form a focused spot on the signal layer Ma of the optical disc M. The OBL 131 is formed as a convex lens provided with a substantially convex curved surface portion 131b. The OBL 132 is formed as a convex lens provided with a substantially convex curved surface portion 132b.

  The laser beam is focused on the signal layer Ma of the optical disc M by moving the OBLs 131 and 132 of the OPU 100 up and down / left and right using the actuator 190 of the OPU 100. More specifically, when the signal layer Ma of the optical disc M is irradiated and formed with a high-precision laser spot, the OBLs 131 and 132 mounted on the lens holder 140 are moved by the actuator 190 of the OPU 100 to the focusing direction D1, the tracking direction D2, and It is moved substantially along the tilt direction D4 or the like as necessary. The OPU 100 performs focusing adjustment, tracking adjustment, and tilt adjustment as necessary when the laser beams are focused by the OBLs 131 and 132. In addition, the focusing adjustment, the tracking adjustment, and the tilt adjustment are performed substantially simultaneously, for example.

  Focus means, for example, focus or focus. Focusing means focusing or focusing. The track means a signal trajectory on the optical disc M, for example. The tracking means that a minute signal portion provided on the signal surface portion Ma of the optical disk M is tracked and observed using light, and the position of the orbit drawn in a substantially spiral shape is determined. The tilt in the optical disk device or the optical pickup device means an angular deviation between the disk surface and the optical axis of the objective lens.

  For example, when the focus servo of the lens holder assembly 193 including the lens holder 140 with the OBLs 131 and 132 mounted on the optical disc M is performed, the lens holder assembly including the lens holder 140 with the OBLs 131 and 132 mounted thereon. The solid 193 is moved along the up-down direction D1. Further, when tracking servo of the lens holder assembly 193 including the lens holder 140 with the OBLs 131 and 132 mounted on the optical disc M is performed, a lens holder assembly including the lens holder 140 with the OBLs 131 and 132 mounted thereon. The solid 193 is moved along the left-right direction D2. The servo or servo mechanism means a mechanism that measures the state of the object to be controlled, compares the measured value with a reference value, and automatically performs correction control. When the laser beam focused by the OBLs 131 and 132 is focused on the signal layer Ma of the optical disc M, the lens holder assembly 193 including the lens holder 140 equipped with the OBLs 131 and 132 is moved up, down, left, right, etc. Driven.

1, 3, and 6, the pair of OBLs 131 and 132 are arranged in parallel with the lens holder 140 along the tracking direction D <b> 2 that is substantially along the one radial direction D <b> 2 of the optical disk M. However, depending on the design / specifications of the optical disk device (1), the OPU (100), etc., for example, a focus direction D1 that is substantially along the optical axis direction D1 of the OBLs 131 and 132, and the optical disk M A pair of OBLs 131 and 132 may be arranged in parallel on the lens holder 140 substantially along a tracking direction D2 that is substantially along the one radial direction D2 and a tangential direction D3 that is orthogonal to the tracking direction D2. . In addition, one OBL may be mounted on the lens holder (140) without using a plurality of OBLs (131, 132).

  Further, as the holding member 140 constituting the OPU 100, a plurality of OBLs 131, 132, a plurality of coils 151, 151, 152, 152, 153, 153, and a plurality of suspension wires 160/161, 162, 163, 164, 165, 166 is used, and the lens holder 140 constituting the lens holder assembly 193 is used.

  The OPU 100 includes a single top wall 141 having a substantially rectangular flat plate shape, and four side walls 142, 143, 144, and 145 having a substantially rectangular flat plate shape substantially orthogonal to the top wall 141, and two OBLs 131, 132 includes a lens holder 140 made of a synthetic resin having a two-piece structure in a substantially rectangular box shape that is mounted on a top wall 141 having a substantially rectangular flat plate shape. For example, the pair of front and rear side walls 142 and 145 having a substantially rectangular flat plate shape face each other substantially in parallel, and the pair of left and right side walls 143 and 144 having a substantially rectangular flat plate shape face each other substantially in parallel. A pair of left and right side walls 143, 144 are positioned substantially orthogonal to the side walls 142, 145, and further, a single rectangular ceiling plate 141 that is substantially orthogonal to the side walls 142, 143, 144, 145. Is positioned above the side walls 142, 143, 144, and 145, so that a lens holder 140 having a substantially rectangular box shape is formed.

  Further, as the coils 151, 152, 153 constituting the OPU 100, focus / tilt coils 151, 152 and a tracking coil for driving the lens holder assembly 193 substantially along each direction D1, D2, D4 when electricity is applied. 153 is used.

  The OPU 100 constitutes a differential actuator 190 for driving a lens holder 140 having a plurality of OBLs 131 and 132, and both side walls 142 and 145 having substantially rectangular horizontally long flat plates facing each other of the lens holder 140 having a substantially rectangular box shape. The lens holder 140 having a plurality of OBLs 131, 132 is driven substantially along the optical axis direction D1 of the OBLs 131, 132 or driven substantially along the swing direction D4. A substantially rectangular annular first focus / tilt coil 151 and a substantially rectangular annular second focus / tilt coil 152 arranged substantially in parallel with the substantially rectangular annular first focus / tilt coil 151. For example, a conventional focus coil and a conventional tilt coil are integrated to form, for example, a first focus / tilt coil 151 having both the functions of a conventional focus coil and the functions of a conventional tilt coil. Further, for example, a conventional focus coil and a conventional tilt coil are integrated to form a second focus / tilt coil 152 having, for example, the functions of the conventional focus coil and the conventional tilt coil.

  Further, the OPU 100 constitutes a differential actuator 190 for driving a lens holder 140 having a plurality of OBLs 131 and 132, and is substantially the substantially rectangular horizontally long plate-like side walls 142 and 145 of the lens holder 140 having a substantially rectangular box shape. A pair of front and rear is attached to the central portion 148, and are arranged substantially in parallel between a substantially rectangular annular first focus / tilt coil 151 and a substantially rectangular annular second focus / tilt coil 152, and have a plurality of OBLs 131 and 132. A substantially rectangular annular tracking coil 153 that drives the lens holder 140 substantially along the radial direction D2 of the optical disk M is provided.

  Further, for example, support members 161, 162, 163, 164, 165, and 166 that support the lens holder assembly 193 that constitutes the OPU 100 and that includes the optical members 131 and 132 so as to be movable in a hollow state are, for example, thin lines that are substantially linear. Suspension wires 161, 162, 163, 164, 165, and 166 having a diameter are used.

  The OPU 100 is mounted on a lens holder assembly 193 having a substantially rectangular box shape, and a plurality of substantially linear elastic support members 161, 162, 163, 164, 165, which elastically support the lens holder assembly 193. 166, so-called substantially linear suspension wires 161, 162, 163, 164, 165, 166 are provided. For example, each of the substantially linear suspension wires 161, 162, 163, 164, 165, and 166 constituting the OPU 100 includes a focus direction D1 that is substantially along the optical axis direction D1 of the OBLs 131 and 132, and the optical disc M. It extends substantially along a tangential direction D3 which is a direction orthogonal to the tracking direction D2 which is substantially along the one radial direction D2. For example, the tangential direction D3 is set to the other radial direction D3 of the optical disc M depending on the rotation position of the optical disc M or the like. At least four of the six left and right suspension wires 161, 162, 163, 164, 165, and 166 mounted on the lens / holder assembly 193 of the OPU 100, preferably the six left and right suspension wires 161, 162, 163, are provided. 164, 165, and 166 are supplied with electricity, such as a drive signal and a control signal, so that the lens and holder assembly 193 of the OPU 100 is mounted on each suspension wire 161, 162, 163, 164, 165, and 166. Electricity, such as a drive signal and a control signal, is supplied to at least four coils, preferably six coils 151, 151, 152, 152, 153, and 153, connected to be energized.

  As the magnetic members 171 and 176 constituting the OPU 100, for example, substantially rectangular parallelepiped magnets so-called magnets 171 and 176 that generate magnetism / magnetic force themselves are used.

  For example, a single-pole driving magnet 171 is used in which a positive electrode portion 174a is formed on the one portion 173a side on the one surface portion 172 side and a negative electrode portion 174b is formed on the other portion 173b side on the one surface portion 172 side. Further, for example, a single-pole driving magnet 176 in which a positive electrode portion 179a is formed on one side 178a side on the one surface portion 177 side and a negative electrode portion 179b is formed on the other portion 178b side on the one surface portion 177 side is used. It is done. Depending on the mounting structure of the magnets 171 and 176, the design / specifications of the OPU 100, etc., for example, as the magnetic members 171 and 176, a one-pole / two-pole magnet or a multi-pole magnetized magnet having two or more poles is used. Also good.

  Further, as the fixing member 180 constituting the OPU 100, for example, a frame / yoke 180 having a complicated structure to which the magnetic members 171, 176 and the like are attached is used. The frame / yoke 180 is bent at a substantially right angle with respect to the substrate portion 182, a pair of side plate portions 183 and 184 that are bent and formed at a substantially right angle with respect to the substrate portion 182, and a pair of side plate portions 183 and 184. The top plate portion 181 is formed to be extended and substantially parallel to the substrate portion 182, and has a structure that surrounds the substantially rectangular parallelepiped magnets 171 and 176.

  The OPU 100 includes a fixed member 180, for example, a frame / yoke 180, on which at least two, preferably four, and more preferably six substantially rectangular flat-plate magnets 171 and 176 are provided. The fixing member 180 is configured as a frame yoke 180, for example. The frame means, for example, a frame, a framework, or a skeleton. The yoke means, for example, one that structurally supports magnetic coupling. The yoke is designed to reduce leakage of magnetic force generated from a magnetic member such as a magnet. The frame yoke is formed as a frame having a function as a yoke. Here, for example, a magnetic coupling member and a back yoke equipped with magnets 171 and 176 are used as the frame / yoke 180. For example, the magnetic coupling member and the back yoke are handled as the frame / yoke 60.

The OPU 100 also includes a light receiving element so-called a photodetector that receives the laser light reflected from the signal layer Ma of the optical disc M, a PDIC (photo diode IC), or a photodetector (PD: photo detector) (not shown). A PD (not shown) includes a main light receiving portion (not shown) having a substantially rectangular shape in plan view corresponding to a main beam (0th order light) transmitted through a plurality of divided diffraction gratings (not shown) such as a quadrant type. , And at least three light-receiving portions including a pair of sub-light-receiving portions (not shown) in a plan view corresponding to a pair of sub-beams (± first-order diffracted light beams) that are diffracted and branched by passing through the diffraction grating. Composed. The main light receiving portion having a substantially rectangular shape in plan view is divided into four substantially equal parts and includes four segments having a substantially rectangular shape in plan view. In addition, the sub-light-receiving part having a substantially rectangular shape in plan view is divided into four substantially equal parts and includes four segments having a substantially rectangular shape in plan view. As described above, the OPU 100 is equipped with a PD having a plurality of light-receiving units each having a plurality of substantially rectangular segments in plan view.

  The PD receives laser light reflected from the signal layer Ma of the optical disc M, converts the signal into an electrical signal, and detects data, information, and signals recorded on the signal layer Ma of the optical disc M. ing. The PD receives the laser beam reflected from the signal layer Ma of the optical disc M, converts the signal into an electric signal, and includes a lens holder assembly 193 including the lens holder 140 with OBLs 131 and 132 constituting the OPU 100. It is intended to operate the servo mechanism. The OPU 100 reads, for example, data / information / signal recorded on the optical disc M, writes data / information / signal on the optical disc M, and erases data / information / signal recorded on the optical disc M. In this case, each laser beam is irradiated on each light receiving portion of the PD, thereby detecting a main information signal of the optical disc M, a focus error signal, a tracking error signal, and the like for the optical disc M.

  The OPU 100 also has, for example, a substantially gel-like damping material (not shown) that suppresses abnormal vibration generated in the suspension wires 161, 162, 163, 164, 165, and 166, and a damping holding member 197 that holds the damping material. Is provided. The suspension wires 161, 162, 163, 164, 165, and 166 are inserted into holes (not shown) of the damping holding member 197 mounted on the rear side of the frame / yoke 180. Further, a hole (not shown) of the damping holding member 197 through which the suspension wires 161, 162, 163, 164, 165, and 166 are inserted is filled with, for example, a dumping agent made of a synthetic polymer having high flexibility. The

  The OPU 100 also includes a circuit board 199 to which the suspension wires 161, 162, 163, 164, 165, and 166 are connected and attached so as to be energized. The circuit board is called, for example, PWB (printed wired board / printed wiring board).

  Further, depending on the design / specifications of the optical disk device 1 and the OPU 100, the OPU 100 includes a covering member (not shown) for protecting various components of the OPU 100, such as a covering plate. When the OPU 100 is assembled, a cover plate (not shown) that protects various components, for example, is provided on the upper side of the OPU 100.

  The OPU 100 also includes a housing 110 (FIGS. 1 and 3) that is equipped with various optical system components, electrical system components, drive system components, and the like. The housing means, for example, a box in which an object such as an apparatus or a part is accommodated, a box shape, or something similar to a box.

As an optical system component mounted on the housing 110, for example, a laser diode (LD), a half-wave plate (1 / 2λ plate), a wide-band quarter-wave plate with aperture restriction (¼λ plate), a liquid crystal correction element (LCD: liquid crystal device / liquid crystal display), diffractive optical element (DOE: differential optical element), diffraction grating (inline grating), divergent lens, prism, polarizing beam splitter, dichroic filter, collimator lens, beam expander Examples include lenses, half mirrors, reflect mirrors, total reflection mirrors, objective lenses, front monitor diodes, sensor lenses, anamorphic lenses, intermediate lenses, and photodetectors. The OPU 100 includes the optical system parts.

  Moreover, as an electrical system component with which the housing 110 is equipped, for example, a printed circuit board, a storage device (ROM: read-only memory), a suspension wire, a coil, an actuator, a flexible printed circuit body, a laser driver, a laser diode, a liquid crystal correction element And a beam expander unit including a collimator lens, a front monitor diode, and a photodetector. The OPU 100 includes the electric system parts.

  Further, examples of the drive system components provided in the housing 110 include a beam expander unit including a suspension wire, a coil, a magnet, a yoke, an actuator, an objective lens, a lens holder, a collimator lens, and the like. The OPU 100 includes the drive system parts.

  Various parts such as various optical system parts, electrical system parts, and drive system parts constituting the OPU 100 are mounted on the housing 110. The housing 110 includes a housing body 115 on which various parts such as various optical system parts, electrical system parts, and drive system parts are mounted, and a first support 31 that protrudes from the housing body 115 and serves as a first shaft member. A pair of main shaft bearings 111a and 111b that are movably matched with each other, and a second shaft member that projects from the housing body 115 toward the opposite side of the main shaft bearings 111a and 111b. The support body 32 and the bearing portion 112 for the countershaft that is movably matched are formed. The main shaft bearing portions 111 a and 111 b and the sub shaft bearing portion 112 are integrally formed with the housing body 115. The main shaft bearing portions 111a and 111b, the sub shaft bearing portion 112, and the housing body 115 are formed as one unit.

  When the OPU 100 moves substantially along the longitudinal direction D2 of the substantially round bar-shaped support bodies 31 and 32, the first bearing portion 111a having a substantially round hole shape and the first support body 31 having a substantially round bar shape are formed. Make sliding contact. Further, when the OPU 100 moves substantially along the longitudinal direction D2 of the substantially round bar-like supports 31, 32, the substantially round hole-shaped second bearing portion 111b, the substantially round bar-like first support 31, and , Is in sliding contact. In addition, when the OPU 100 moves substantially along the longitudinal direction D2 of the substantially round bar-shaped supports 31, 32, a third bearing part 112 having a substantially U-shaped sliding bearing structure in a sideways manner, The second support 32 is in sliding contact.

  The supports 31 and 32 are formed as, for example, slide shafts 31 and 32 that can be slidably contacted with the bearing portions 111a, 111b, and 112 of the housing 110 of the OPU 100. The supports 31 and 32 are excellent in corrosion resistance. For example, “Hot Finished Stainless Steel Bar” defined based on “JIS G 4304”, “Cold Formed Stainless Steel” defined based on “JIS G 4318”. A “bar” or the like is used. Further, the bearing portions 111a, 111b, and 112 are formed as, for example, sliding portions 111a, 111b, and 112 that can slide in contact with the slide shafts 31 and 32.

  The OPU 100 has a substantially three-point structure that is stable on the pair of slide shafts 31 and 32 by the first sliding portion 111a, the second sliding portion 111b, and the third sliding portion 112 of the housing 110. It is supported movably. The OPU 100 is movable on the pair of slide shafts 31 and 32 by three main points of the first sliding portion 111a, the second sliding portion 111b, and the third sliding portion 112 of the housing 110. Therefore, the friction is reduced as compared with, for example, an OPU (not shown) having a four-point support structure.

  Further, since the third sliding portion 112 constitutes an open sideways substantially U-shaped sliding bearing structure, for example, the assembling operation of the OPU 100 to the slide shaft 32 serving as the auxiliary shaft is performed. Is easily done. Further, since the third sliding portion 112 is configured to constitute an open sideways substantially U-shaped sliding bearing structure, for example, the first sliding shaft 31 that is the main shaft and the auxiliary shaft A slight error such as the parallelism of the second slide shaft 32 is absorbed by the third sliding portion 112 of the opened sideways substantially U-shaped sliding bearing structure.

  The OPU 100 includes the lens holder assembly 193 having the OBLs 131 and 132, the coils 151, 151, 152, 152, 153, and 153, the suspension wires 161, 162, 163, 164, 165, and 166, and the magnet. 171 and 176, and the frame / yoke 180. The OPU 100 is configured to include other parts other than the above-described various parts, but detailed description of other parts is omitted here.

  As shown in FIG. 1A, the traverse mechanism 5 moves on the pair of slide shafts 31 and 32 mounted on the chassis 20 substantially along the longitudinal direction DR of the pair of slide shafts 31 and 32 mounted on the chassis 20. An optical head main body assembly 10 having an optical head driving device 30 capable of linear reciprocation and a rotation motor main body assembly having a rotation motor driving device 70 capable of rotating a turntable 73 equipped with an optical disk M. 50. A rotation motor main body assembly 50 is attached to the optical head main body assembly 10 so as to be adjustable. The rotating motor main body assembly 50 is called, for example, “Motor Assy”.

  The traverse mechanism 5 includes a pair of left and right stoppers 81 and 82 that temporarily or securely fix the rotating motor main body assembly 50 to the optical head main body assembly 10.

  A rotation center portion 23 that is the center when the rotation motor main body assembly 50 is rotated with respect to the optical head main body assembly 10 is a substantially flat chassis 20 constituting the optical head main body assembly 10. Is provided. Further, the rotation motor main body assembly 50 is rotated with respect to the optical head main body assembly 10 in correspondence with the rotation center part 23 of the substantially flat chassis 20 constituting the optical head main body assembly 10. A rotation center portion 63 that is the center of the rotation is provided on a substantially flat circuit board 60 constituting the rotation motor main body assembly 50.

  The rotation center portion 23 provided on the substantially flat chassis 20 constituting the optical head main body assembly 10 includes the rotation center shaft 23. Further, the rotation center portion 63 provided on the substantially flat circuit board 60 constituting the rotation motor main body assembly 50 is configured to include the rotation center hole 63.

  Depending on the design / specifications of the traverse mechanism 5 and the optical disc apparatus 1 including the traverse mechanism 5, for example, the rotation center portion 23 provided in the substantially flat chassis 20 constituting the optical head main body assembly 10 is formed by the rotation center hole. (63) may be included. For example, the rotation center part 63 provided in the substantially flat circuit board 60 which comprises the rotation motor main-body part assembly 50 may be comprised including the rotation center axis | shaft (23). The parentheses () attached to the reference numerals in this specification are used for the sake of convenience when describing something slightly different from the illustrated one.

A pair of left and right positioning fixing portions 21 and 22 used when fixing the rotating motor main body assembly 50 to the optical head main body assembly 10 is a substantially flat chassis 20 constituting the optical head main body assembly 10. Is provided. Further, the rotating motor main body assembly 50 is attached to the optical head main body assembly 10 in correspondence with the pair of left and right positioning fixing portions 21 and 22 of the substantially flat chassis 20 constituting the optical head main body assembly 10. A pair of left and right alignment fixing portions 61 and 62 used for fixing are provided on a substantially flat circuit board 60 constituting the rotating motor main body assembly 50.

  The pair of left and right positioning fixing portions 21 and 22 provided on the substantially flat chassis 20 constituting the optical head main body assembly 10 is configured so that the rotating motor main body assembly 50 rotates relative to the optical head main body assembly 10. The optical head main body assembly 10, which is the center when the optical head main body assembly 10 is moved, is provided substantially along a substantially circular axis 24 around the rotation center portion 23. Further, the pair of left and right alignment fixing portions 61 and 62 provided on the substantially flat circuit board 60 constituting the rotation motor main body assembly 50 is the rotation motor main body portion with respect to the optical head main body assembly 10. It is provided substantially along a substantially circular axis 64 centered on the rotation center portion 63 of the rotation motor main body assembly 50 that is the center when the assembly 50 is rotated.

  The positioning fixing portions 21 and 22 provided on the substantially flat chassis 20 constituting the optical head main body assembly 10 include female screw holes 21 and 22. Further, the fixing portions 61 and 62 for alignment provided on the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 are configured to include substantially oblong holes 61 and 62.

  According to the design / specifications of the traverse mechanism 5 and the optical disk device 1 including the traverse mechanism 5, for example, the positioning fixing portions 21 and 22 provided on the substantially flat chassis 20 constituting the optical head main body assembly 10 are substantially long. You may comprise including a circular hole (61, 62). Further, for example, the fixing portions 61 and 62 for alignment provided on the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 may include female screw holes (21 and 22).

  The traverse mechanism 5 is provided with a pair of left and right stoppers 81 and 82 that temporarily or securely fix the rotating motor main body assembly 50 to the optical head main body assembly 10. A pair of left and right positioning fixing portions 21 and 22 provided on a substantially flat chassis 20 constituting the optical head main body assembly 10 and a substantially flat circuit board 60 constituting the rotating motor main body assembly 50 are provided. After the pair of left and right positioning fixing portions 61 and 62 are aligned, the pair of left and right positioning fixing portions 21 and 22 and the pair of left and right positioning fixing portions 61 and 62 are provided with a pair of left and right positioning fixing portions 61 and 62 When the fasteners 81 and 82 are tightened loosely or securely, for example, the rotating motor main body assembly 50 is temporarily fixed or securely fixed to the optical head main body assembly 10.

  The stoppers 81 and 82 provided in the positioning fixing portions 21 and 22 and the alignment fixing portions 61 and 62 are configured to include male screws 81 and 82. The male screws 81 and 82 are substantially round rod-shaped male screw portions 81a and 82a provided with threads, and a substantially deformed curved round plate-shaped head portion 81h provided on one end side of the substantially round rod-like male screw portions 81a and 82a. 82h. Cross heads (both not shown) are formed in the heads 81h, 82h of the male screws 81, 82 corresponding to the tip of the cross screwdriver.

The male screw portions 81a and 82a of the male screws 81 and 82 are formed based on, for example, “single-threaded screw” defined by “JIS B 0101” or “multi-threaded screw” such as “double-threaded screw” and “three-threaded screw”. The The male screw portions 81a and 82a of the male screws 81 and 82 are formed based on, for example, “triangular screw”, “metric screw” or the like defined by “JIS B 0101” or the like. The male threads 81a, 82a of the male threads 81, 82 are, for example, “metric threads” defined by “JIS B 0205” or the like, so-called “metric coarse threads”, or, for example, “JIS B 0207”. It is formed on the basis of a “fine thread” of a “metric thread” defined by the so-called “metric fine thread”. The shape of the female screw holes 21 and 22 of the chassis 20 is formed corresponding to the shape of the male screw portions 81a and 82a of the male screws 81 and 82.

  If the male screw portions 81a and 82a of the male screws 81 and 82 are formed based on “multi-threaded screws” such as “double-threaded screws” and “three-threaded screws” defined by “JIS B 0101” or the like, for example, a thin steel plate Even if the chassis 20 is used, the number of threads corresponding to the thickness 20t of the thinly formed chassis 20 is secured in the female screw holes 21 and 22 of the chassis 20, which is preferable.

  Further, the stoppers 81 and 82 provided in the positioning fixing portions 21 and 22 and the positioning fixing portions 61 and 62 include spring washers 81s and 82s, so-called spring washers 81s and 82s. If the male screws 81 and 82 provided in the positioning fixing portions 21 and 22 and the positioning fixing portions 61 and 62 are equipped with spring washers 81s and 82s, they are generated when the spring washers 81s and 82s are crushed. Due to the restoring elastic force, the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 is securely fixed to the substantially flat chassis 20 constituting the optical head main body assembly 10.

  The stoppers 81 and 82 provided in the positioning fixing portions 21 and 22 and the alignment fixing portions 61 and 62 are configured to include plain washers 81w and 82w so-called washers 81w and 82w. If the male screws 81 and 82 provided in the positioning fixing portions 21 and 22 and the positioning fixing portions 61 and 62 are equipped with washers 81w and 82w, for example, a substantially flat plate is used when the spring washers 81s and 82s are crushed. It is avoided that the like chassis 20 is scratched.

  For example, spring washers 81 s and 82 s and substantially flat plate washers 81 w and 82 w are provided on the male screws 81 and 82 provided in the positioning fixing portions 21 and 22 and the alignment fixing portions 61 and 62, for example, inseparably. By providing the spring washers 81s and 82s and the substantially flat washers 81w and 82w to the male screws 81 and 82, for example, inseparably, the handling of the male screws 81 and 82 is improved. For example, problems such as forgetting to attach the spring washers 81s and 82s and the substantially flat washers 81w and 82w are avoided.

  A rotation adjustment unit 25 used when the rotation motor main body assembly 50 is rotated and adjusted with respect to the optical head main body assembly 10 by a rotation jig (not shown) such as a rotation jig. Are provided in a substantially flat chassis 20 constituting the optical head main body assembly 10. Further, corresponding to the rotation adjusting portion 25 of the substantially flat chassis 20 constituting the optical head main body assembly 10, the optical head main body assembly 10 is attached to the optical head main body assembly 10 by a rotation jig such as a rotation jig (not shown). On the other hand, a rotation adjusting portion 65 used when rotating the rotation motor main body assembly 50 is provided on the substantially flat circuit board 60 constituting the rotation motor main body assembly 50.

  The rotation adjustment unit 25 provided in the substantially flat chassis 20 constituting the optical head main body assembly 10 is used to adjust the rotation motor main body assembly 50 relative to the optical head main body assembly 10. The rotation adjustment center hole 26 corresponding to the rotation adjustment center shaft portion (both not shown) of the rotation jig used for the rotation jig and the rotation provided in parallel with the rotation adjustment center shaft portion of the rotation jig A rotation adjustment hole portion 27 corresponding to a rotation adjustment shaft portion (none of which is shown) of the moving jig. Further, the rotation adjustment portion 65 provided on the substantially flat circuit board 60 constituting the rotation motor main body assembly 50 is a rotation adjustment hole corresponding to a rotation adjustment shaft portion of a rotation jig (not shown). Part 67.

The rotation adjustment center hole 26 provided in the substantially flat chassis 20 constituting the optical head main body assembly 10 includes a substantially circular hole 26. Further, the rotation adjusting hole 27 provided in the substantially flat chassis 20 constituting the optical head main body assembly 10 includes a substantially oval hole 27. Further, the rotation adjustment hole 67 provided in the substantially flat circuit board 60 constituting the rotation motor main body assembly 50 is configured to include a substantially circular hole 67.

  When the traverse mechanism 5 including the optical head main body assembly 10 and the rotation motor main body assembly 50 is viewed in plan, the lens central portions 131a and / or 132a of the OBLs 131 and 132 constituting the optical head driving device 30 are displayed. And a central axis LR2 connecting the rotation center 73a of the turntable 73 constituting the rotation motor driving device 70, and the head device along the linear reciprocation direction DR of the optical head driving device 30 in the optical disk radial direction. The movement center axis line LR1 substantially coincides.

  Further, when the traverse mechanism 5 including the optical head main body assembly 10 and the rotation motor main body assembly 50 is viewed in plan, the signal read / write unit central part of the OBLs 131 and 132 constituting the optical head driving device 30 is used. 131a, 132a, the rotation center 73a of the turntable 73 constituting the rotation motor driving device 70, and the center when the rotation motor main body assembly 50 is rotated with respect to the optical head main body assembly 10. When the rotation motor main body assembly 50 is rotated with respect to the rotation center portion 23 of the substantially planar chassis 20 of the optical head main body assembly 10 and / or the optical head main body assembly 10. The central rotation part 63 of the substantially flat circuit board 60 of the rotation motor main body assembly 50 that is the center is arranged in a substantially straight line.

  By configuring the traverse mechanism 5, the rotation motor main body assembly 50 having the rotation motor driving device 70 is reliably and accurately attached to the optical head main body assembly 10 having the optical head driving device 30.

  The assembly procedure / assembly method of the traverse mechanism 5 and the optical disc apparatus 1 including the traverse mechanism 5 will be described.

  First, the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 is superimposed on the substantially flat chassis 20 constituting the optical head main body assembly 10.

  Next, the substantially round rod-like male screw portions 81a and 82a of the male screws 81 and 82 are inserted from the oblong holes 61 and 62 of the substantially flat circuit board 60 constituting the rotating motor main body assembly 50, and the optical head main body assembly is assembled. The substantially round rod-like male screw portions 81a, 82a of the male screws 81, 82 are screwed into the substantially cylindrical female screw holes 21, 22 of the substantially flat chassis 20 constituting the solid 10 in a loose state.

  At that time, the male screws 81 and 82 are loosely tightened to such an extent that, for example, a loose restoring elastic force is generated in the spring washers 81s and 82s provided in the male screws 81 and 82. In this state, the substantially flat circuit board 60 constituting the rotation motor main body assembly 50 is rotated and adjusted with respect to the substantially flat chassis 20 constituting the optical head main body assembly 10.

  Next, the substantially flat circuit board 60 constituting the rotation motor main body assembly 50 is positioned and fixed to the substantially flat chassis 20 constituting the optical head main body assembly 10. Next, when the substantially round rod-like male screw portions 81a, 82a of the male screws 81, 82 are tightened into the substantially cylindrical female screw holes 21, 22 of the chassis 20, the spring washers 81s, 82s are crushed and the spring washers 81s, 82s. Restoring elastic force is generated. Thereafter, when the substantially round rod-like male screw portions 81a and 82a of the male screws 81 and 82 are further tightened into the substantially cylindrical female screw holes 21 and 22 of the chassis 20, the spring washers 81s and 82s are crushed into, for example, a substantially hollow disk shape. In addition, a large restoring elastic force is generated in the spring washers 81s and 82s.

As a result, the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 is reliably positioned and fixed to the substantially flat chassis 20 constituting the optical head main body assembly 10.

  The adjustment direction is such that the substantially flat circuit board 60 of the rotation motor main body assembly 50 is rotated and adjusted with respect to the substantially flat chassis 20 of the optical head main body assembly 10, for example, two-dimensional mounting. For example, male screws 81 and 82 are provided between the substantially flat chassis 20 of the optical head main body assembly 10 and the substantially flat circuit board 60 of the rotation motor main body assembly 50. For example, a spindle washer of a spindle motor 71 following the turntable 73 with respect to the substantially flat chassis 20 of the optical head main body assembly 10. The tilt adjustment of the shaft 72 may be performed. As described above, the inclination of the spindle motor 71 and the like mounted on the substantially flat circuit board 60 of the rotation motor main body assembly 50 is adjusted with respect to the substantially flat chassis 20 of the optical head main body assembly 10. An executable traverse mechanism 5 may be configured.

  Further, after the rotation motor main body assembly 50 is fixed to the optical head main body assembly 10 with high precision, for example, an adhesive is used to form a substantially flat chassis that constitutes the optical head main body assembly 10. 20, the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 is more securely fixed.

  For example, an adhesive is applied and fixed to the edge 60 a of the substantially flat circuit board 60 provided in the substantially flat chassis 20. Further, for example, the visible portion (FIG. 1A) of the substantially round rod-like male screw portion 81 a of the male screw 81 tightened in the substantially cylindrical female screw hole 21 of the substantially flat chassis 20 and the substantially cylindrical shape of the substantially flat chassis 20. An adhesive is applied and fixed to the visible portion of the substantially round rod-shaped male screw portion 82a of the male screw 82 tightened in the female screw hole 22. Further, for example, an adhesive is poured into the oval hole 27 of the substantially flat chassis 20 and the circular hole 67 of the substantially flat circuit board 60 aligned with the oval hole 27 to fix the adhesive. . In this manner, the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 is securely fixed to the substantially flat chassis 20 constituting the optical head main body assembly 10.

  Thus, the adhesive is used to fix the substantially flat circuit board 60 constituting the rotating motor main body assembly 50 to the substantially flat chassis 20 constituting the optical head main body assembly 10. Thus, even if vibration is applied to the traverse mechanism 5 and the optical disc apparatus 1 including the traverse mechanism 5, the rotational motor main body assembly 50 is displaced from the optical head main body assembly 10. A difficult traverse mechanism 5 and an optical disc apparatus 1 including the traverse mechanism 5 are configured.

  The optical disc apparatus 1 is configured to include the traverse mechanism 5.

  As a result, the traverse mechanism 5 is provided in which the rotation motor main body assembly 50 having the rotation motor driving device 70 is accurately and securely attached to the optical head main body assembly 10 having the optical head driving device 30. The optical disc device 1 can be provided.

  The pickup apparatus main body assembly 10 constituting the traverse mechanism 5 includes a substantially flat chassis 20, a pair of long round rod-like slide shafts 31 and 32 attached to the substantially flat chassis 20, and a pair of The OPU 100 is movably mounted on the long round rod-shaped slide shafts 31 and 32. Further, the OPU 100 includes a pair of OBLs 131 and 132 that irradiate the signal surface Ma of the disk M with light such as laser light in focus.

The traverse mechanism 5 includes an OPU 100 that can read or read data, information, signals, and the like with respect to the medium M such as the optical disc M, and a pair of slide shafts 31 and 32 that movably support the OPU 100; A male screw 83 capable of adjusting the mounting position of one of the slide shafts 31; and a compression coil spring 93 having, for example, a substantially helical shape, which is provided in a compressed state around a substantially round bar-shaped male screw portion 84 constituting the male screw 83; , And is configured.

  For example, the compression coil spring 93 is formed using a metal material mainly composed of iron. Examples of the metal material mainly composed of iron include spring steel materials, hard steel wires, piano wires, and stainless steel wires for springs. For example, examples of spring steel materials include SUP7, SUP10, SUP12, etc. defined based on “JIS G 4801”. For example, SWB, SWC, etc. defined based on "JIS G 3521" are mentioned as a hard steel wire. Further, for example, as a piano wire, SWP defined based on “JIS G 3522” can be cited. For example, SUS302, SUS304, SUS316 etc. which were defined based on "JIS G 4314" are mentioned as a stainless steel wire for springs.

  In addition, the traverse mechanism 5 includes a chassis 20 that supports one slide shaft 31 and has a male screw 83 erected and against which a compression coil spring 93 abuts. Here, the chassis means, for example, a built-in stand or a base. The male screw portion 84 of the male screw 83 is screwed into the female screw hole portion 29 of the chassis 20.

  The male screw 83 has a substantially round bar-like male screw part 84 provided with a thread and a substantially cylindrical head 85 provided on one end side of the substantially round bar-like male screw part 84.

  The male threaded portion 84 of the male thread 83 is formed based on, for example, “single threaded screw” defined by “JIS B 0101” or “multiple threaded thread” such as “double threaded screw” or “three threaded thread”. The male screw portion 84 of the male screw 83 is formed based on, for example, “triangular screw”, “metric screw”, etc. defined by “JIS B 0101” or the like. The male thread portion 84 of the male thread 83 is defined by, for example, “JIS B 0205” or the like, “Metric thread” “coarse thread” or “Metric coarse thread”, or “JIS B 0207” or the like. It is formed on the basis of the “fine thread” of the “metric screw”, so-called “metric fine thread”. The shape of the female screw hole portion 29 of the chassis 20 is formed corresponding to the shape of the male screw portion 84 of the male screw 83.

  By using a screwdriver (not shown) such as a screwdriver to adjust the rotation of the male screw 83, fine adjustment of inclination such as fine adjustment of parallelism of the first slide shaft 31 with respect to the second slide shaft 32 is performed. Therefore, the male thread portion 84 of the male thread 83 is preferably formed based on “multiple thread” such as “double thread” and “three thread” defined by “JIS B 0101”, for example. In addition, if the male screw portion 84 of the male screw 83 is formed based on “multi-threaded screw” such as “double-threaded screw” or “three-threaded screw” defined by “JIS B 0101” or the like, for example, a thin steel plate is used. Even if the chassis 20 is formed, the number of threads corresponding to the thickness 20t of the thinly formed chassis 20 is secured in the female screw hole 29 of the chassis 20, which is preferable.

  Further, the traverse mechanism 5 includes a leaf spring 91 that presses one slide shaft 31 toward the male screw 83. The leaf spring 91 includes a substantially plate-like first abutting portion 91 a that abuts against one slide shaft 31 and a substantially plate-like second abutting portion 91 b that abuts against the chassis 20 and is fixed to the chassis 20. For example, a first contact portion 91a and a second contact portion 91b are coupled.

A lower side surface portion 92a of the first contact piece 91a constituting the leaf spring 91 is in contact with the outer peripheral side surface portion 31a of one slide shaft 31. Further, the lower side surface portion 92 b of the second contact piece 91 b constituting the leaf spring 91 is brought into contact with the upper side surface portion 20 a of the chassis 20, and the leaf spring 91 is fixed to the chassis 20.

  As shown in FIG. 2, when the leaf spring 91 is viewed from the side, the first abutment piece 91a of the leaf spring 91 is opposed to the second abutment piece 91b of the leaf spring 91 fixed to the substantially plate-like chassis 20. Is inclined at an obtuse angle. More specifically, when the leaf spring 91 is viewed from the side, the first contact piece portion of the leaf spring 91 is opposed to the second contact piece portion 91b of the leaf spring 91 fixed to the substantially plate-like chassis 20. 91a is inclined at an angle of approximately 135 °. In this manner, the leaf spring 91 is bent into, for example, a substantially “<” shape in a sideways manner, and the leaf spring 91 is formed in a substantially obtuse angle shape. The leaf spring 91 fixed to the substantially plate-like chassis 20 is moved to one of the slides by a restoring elastic force generated in the leaf spring 91 which is brought into contact with the chassis 20 and the slide shaft 31 and bent in a substantially “<” shape. The shaft 31 is pressed toward the male screw 83. The leaf spring 91 is fixed to the chassis 20 by using a fastener 89 (FIG. 3) such as a screw or a rivet 89, for example.

  Further, as shown in FIGS. 1A, 1B, 2 and 3, the substantially cross-headed head 85 constituting the male screw 83 is formed in, for example, a substantially disc shape. On the upper side of the head 85 of the male screw 83, a cross hole 87 is formed corresponding to the tip of a cross screw driver (none of which is shown). Further, the outer peripheral surface portion 31a of one slide shaft 31 is in contact with the outer peripheral lower end portion 85a of the substantially cross-headed head 85 constituting the male screw 83.

  The compression coil spring 93 provided in the traverse mechanism 5 includes a first end portion 96 that contacts the lower surface portion 86a of the head 85 of the male screw 83, and a first surface portion 96a that contacts the upper surface portion 20a of the chassis 20 that screw-supports the male screw 83. And two end portions 97. A substantially round rod-shaped male screw portion 84 constituting a male screw 83 is inserted into, for example, a substantially helical cylindrical coil portion 94 formed by winding and forming a linear body 95 constituting the compression coil spring 93. ing.

  If the traverse mechanism 5 is configured, tilt adjustment such as parallelism adjustment in the pair of slide shafts 31 and 32 is reliably performed. It is possible to provide the traverse mechanism 5 in which the tilt adjustment such as the parallelism adjustment in the pair of slide shafts 31 and 32 provided with the OPU 100 can be executed.

  As shown in FIG. 2, when one slide shaft 31 is viewed from the side, a portion of one slide shaft 31 with which the lower end 85 a on the outer peripheral side of the head 85 constituting the male screw 83 comes into contact is, for example, approximately A first plane part (not shown) inclined at an angle of 45 ° may be formed. Further, in one slide shaft 31, for example, approximately 45 corresponding to the first abutting piece 91 a of the leaf spring 91 formed at an inclination in a portion where the first abutting piece 91 a of the leaf spring 91 is abutted. A second plane part (not shown) inclined at an angle of ° may be formed. In this case, the first plane portion of the slide shaft 31 is substantially orthogonal to the second plane portion of the slide shaft 31. With respect to the second flat portion of the slide shaft 31, the first flat portion of the slide shaft 31 is inclined at an angle of approximately 90 °.

  Further, one end of one slide shaft 31 may be equipped with a so-called sleeve (not shown) for adjusting the attachment position that covers one end of the slide shaft 31. In this case, a notch (not shown) such as an opening corresponding to a sleeve (not shown) is formed in the chassis 20. In this case, the head 85 constituting the male screw 83 is brought into contact with the outer peripheral surface portion of a sleeve (not shown) attached to one end of one slide shaft 31 and the first contact of the leaf spring 91 is made. The contact piece 91a is brought into contact.

Further, in a sleeve (not shown) attached to one end of one slide shaft 31, for example, approximately 45 is provided at a portion with which the outer peripheral lower end 85 a of the head 85 constituting the male screw 83 contacts.
A first plane part (not shown) inclined at an angle of ° may be formed. In addition, in a sleeve (not shown) attached to one end of one slide shaft 31, a first contact of the leaf spring 91 formed at an inclination is formed on a portion where the first contact piece 91 a of the leaf spring 91 is in contact. A second flat surface portion (not shown) inclined at an angle of, for example, about 45 ° may be formed corresponding to the contact piece portion 91a. In this case, the first plane portion of the sleeve (not shown) is substantially orthogonal to the second plane portion of the sleeve (not shown). The first flat portion of the sleeve (not shown) is inclined at an angle of approximately 90 ° with respect to the second flat portion of the sleeve (not shown).

  By forming the slide shaft 31 in this way, the angle adjustment of the first slide shaft 31 with respect to the second slide shaft 32 can be accurately and easily performed with certainty. Therefore, tilt adjustment such as parallelism adjustment in the pair of slide shafts 31 and 32 is performed easily and reliably with high accuracy.

  After the tilt adjustment such as the parallelism adjustment of the first slide shaft 31 with respect to the second slide shaft 32 is reliably performed, for example, an adhesive is used to form a substantially flat plate shape that constitutes the optical pickup apparatus main body assembly 10. A pair of substantially round bar-shaped slide shafts 31 and 32 are securely fixed to the chassis 20.

  For example, an adhesive is provided in the relief hole 69 provided in the substantially flat circuit board 60 corresponding to the substantially round bar-shaped male screw portion 84 of the male screw 83 fastened in the substantially cylindrical female screw hole portion 29 of the substantially flat chassis 20. Is inserted and the adhesive is fixed, so that the male screw 83 that presses the first slide shaft 31 while positioning it is securely fixed to the chassis 20.

  As described above, even if vibration is applied to the traverse mechanism 5, the optical disc apparatus 1 including the traverse mechanism 5, and the like by fixing the male screw 83 to the chassis 20 using an adhesive, the chassis 20. The traverse mechanism 5 in which the displacement of the male screw 83 with respect to the traverse mechanism 5 and the optical disc apparatus 1 including the traverse mechanism 5 are configured.

  A substantially flat chassis 20 constituting the optical head main body assembly 10 is provided with a substantially flat circuit board 60 constituting the rotation motor main body assembly 50 using an adhesive, and a pair of Are provided on the substantially flat chassis 20, the traverse mechanism 5 that is highly accurate and is less likely to be displaced, and the optical disk device 1 including the traverse mechanism 5 are configured. .

  Examples of the adhesive include an electron beam curable adhesive such as an ultraviolet curable adhesive mainly composed of a one-component or two-component epoxy resin or a one-component acrylic resin. Examples of the adhesive include thermosetting resins mainly composed of one-component or two-component epoxy resins, modified acrylic resins, and the like. An adhesive made of a one-component resin or the like is excellent in, for example, bonding workability, and an adhesive made of a two-component resin or the like is excellent in, for example, price characteristics of the adhesive.

More specifically, the OPU 100 includes an adhesive member so-called the adhesive (not shown) that adheres and fixes each component without separating various components. Examples of the adhesive (not shown) include resins / polymers such as one-component and / or two-component epoxy resins, acrylic resins, urethane resins, and methacrylic resins. For example, any one of resins / polymers selected from the above resin group is used as a polymer / main component constituting a one-component and / or two-component adhesive. The epoxy resin, urethane resin, thermosetting acrylic resin, and the like are, for example, thermosetting resin / polymer. Moreover, as a hardening | curing agent with respect to the main ingredient of a two-component polymer, polymers, such as polythiol etc., amine-type materials, such as a polyamidoamine, a modified polyamine, a tertiary amine, are mentioned, for example. For example, any one of the polymers selected from the polymer group is used as the curing agent constituting the two-component adhesive. An adhesive made of a one-part polymer is excellent in, for example, adhesion workability, and an adhesive made of a two-part polymer is excellent in, for example, price characteristics of the adhesive.

  Further, as the adhesive, for example, an electron beam curable adhesive having a property of being cured by being irradiated with an electron beam such as light can be used. More specifically, an ultraviolet curable adhesive having a property of being cured when irradiated with ultraviolet rays can be used as the adhesive. More specifically, as the adhesive, an ultraviolet curable adhesive having a property of being cured by being irradiated with ultraviolet rays and having a thermosetting property can be used. Further, for example, an ultraviolet curable adhesive can be used together with a thermosetting adhesive. When the ultraviolet curable adhesive is irradiated with, for example, ultraviolet rays having a wavelength of about 350 to 380 nm, the ultraviolet curable adhesive is cured in a short time.

  The adhesive will be described in detail. Examples of the adhesive include a one-component adhesive and a two-component adhesive. For example, as a polymer / main agent constituting a one-component and / or two-component adhesive, an epoxy polymer, a modified acrylic polymer, a polyurethane polymer, an acrylic ester polymer, a methacrylic ester polymer At least one polymer selected from the group consisting of: Further, for example, the resin constituting the one-component and / or two-component adhesive after being cured is a group consisting of an epoxy resin, a modified acrylic resin, a polyurethane resin, a polyacrylic resin, and a polymethacrylic resin. At least one resin selected from the group consisting of resins selected from: For example, at least one polymer selected from the group consisting of polythiol, polyamidoamine, modified polyamine, and tertiary amine is used as a curing agent that constitutes the two-component adhesive.

  Further, for example, it is also possible to use one in which an adhesion process is performed using a two-component ultraviolet curable adhesive. Examples of the two-component ultraviolet curable adhesive include a two-component epoxy-based ultraviolet curable adhesive. By using a polymer adhesive such as an acrylic adhesive or an epoxy adhesive, for example, a high vibration component is absorbed.

  Specific epoxy adhesives include, for example, Swiss Huntsman (Huntsman Advanced Materials) / Huntsman Japan Sales: Araldite (registered trademark) 2010-1, 2012, and the like. Araldite (registered trademark) 2010-1 has a viscosity of about 80000 mPas (millipascal second) under a temperature condition of 23 ° C., and is excellent in rapid curability. For example, Araldite (registered trademark) 2012 is a two-part adhesive having a main agent AW2104 and a curing agent HW2934, and has a viscosity of approximately 25,000 to 35000 mPas under a temperature condition of 23 ° C. Excellent in properties and fast curability.

  Specific examples of the polyurethane adhesive include Araldite (registered trademark) 2055 manufactured by Huntsman (Huntsman Advanced Materials), Switzerland / Huntsman Japan, Inc. Araldite (registered trademark) 2055 is, for example, thixotropic, and has a tensile shear strength of approximately 9000 mPas, for example, and is excellent in gap filling properties. The thixotropy means, for example, a phenomenon in which the apparent viscosity is lowered when stirred in a solid liquid coexisting state in which a part is solidified when solidifying from a solution state.

Specific examples of the modified acrylic adhesive include Araldite (registered trademark) 2021 manufactured by Huntsman (Huntsman Advanced Materials), Switzerland / Huntsman Japan, Inc. For example, Araldite (registered trademark) 2021 is a two-part adhesive having a main agent XD4661A and a curing agent XD4661D, has a viscosity of about 60000 mPas at 23 ° C., and has a minimum curing time of about It is as short as 18 minutes and is faster curing than other Araldite (registered trademark).

  Moreover, as an adhesive agent, anaerobic adhesives, such as the product manufactured by ThreeBond Co., Ltd .: anaerobic strong sealant, etc. are mentioned, for example. The anaerobic adhesive is an adhesive that is not cured while being exposed to air, for example, and is cured by blocking the air. Also, manufactured by ThreeBond Co., Ltd .: Anaerobic strong sealant also has electron beam curing characteristics such as ultraviolet curing characteristics. For example, an exposed anaerobic adhesive is irradiated with an electron beam such as ultraviolet rays. As a result, the protruding anaerobic adhesive is cured. Examples of the main component constituting the anaerobic adhesive include (meth) acrylic acid ester, methacrylic acid ester, and methacrylic acid ester monomer.

  Examples of the 1300 series manufactured by ThreeBond, which are anaerobic adhesives, include ThreeBond (registered trademark) 1359D and ThreeBond (registered trademark) 1373N. ThreeBond (registered trademark) 1359D has a (meth) acrylic acid ester as a main component before curing, and has a viscosity of approximately 14000 mPas at room temperature, for example, is fast curing, and has electron beam curing characteristics such as ultraviolet curing characteristics. After being cured, it becomes a polyacrylic resin, and is excellent in vibration resistance, heat resistance, flexibility, surface adhesion, and the like. ThreeBond (registered trademark) 1373N has a main component before curing as a methacrylic acid ester. For example, the viscosity at room temperature is approximately 90 mPas and is fast-curing, and has electron beam curing characteristics such as ultraviolet curing characteristics. After being cured, it becomes a methacrylic resin, and is excellent in vibration resistance, heat resistance, low temperature curability and the like.

  Moreover, as an adhesive agent, the 3bond company make: Instant adhesive (Gold label series) is mentioned, for example. The instantaneous adhesive is an adhesive that fixes the adherends at a “second speed” of several seconds to several tens of seconds. Examples of the 7700 series manufactured by ThreeBond Co., Ltd., which are instant adhesives, include ThreeBond (registered trademark) 7741. ThreeBond (registered trademark) 7741 has ethyl 2-cyanoacrylate as a main component, has a viscosity of approximately 2 mPas at room temperature, for example, and is excellent in instantaneous adhesiveness.

  Examples of the ultraviolet curable adhesive that is a kind of electron beam curable adhesive include, for example, optical UV adhesives NOA65, NOA68, NOA73, NOA83H, manufactured by NORLAND, USA. The ultraviolet curable adhesives such as the optical UV adhesives NOA65, NOA68, NOA73, NOA83H, etc. are made of acrylic and are one-component ultraviolet curable adhesives. Acrylic ultraviolet curable adhesives have a short curing time and can be cured in units of several seconds. “UV” means “ultraviolet”. “Ultraviolet radiation” means “ultraviolet rays”. The ultraviolet curable adhesive is called a UV curable adhesive.

  Made by NORLAND: NOA65 has a viscosity of about 1000 to 1200 cps at room temperature, for example, and is flexible and can be adhered to, for example, an elaborate part. Note that 1 cps is 1 mPas. Further, NORLAND: NOA68, for example, has a viscosity of approximately 5000 cps at room temperature, and is flexible and can be adhered to, for example, an elaborate part. Further, NORLAND: NOA73, for example, has a viscosity of about 130 cps at room temperature, and is flexible and has a low viscosity. Further, NORALD: NOA83H has a viscosity of about 250 cps at room temperature, for example, and has a thermosetting property in addition to a UV property, and can be bonded to a portion where light does not reach directly, for example.

Moreover, as an ultraviolet curable adhesive used as a kind of electron beam curable adhesive, for example, those manufactured by EMI Co., Ltd. in the USA: trade name “OPTOCAST” series can be cited. Specific examples of the ultraviolet curable adhesive include OPTOCAST3415 and OPTOCAST3505-HM manufactured by EMI, USA. Ultraviolet curable adhesives such as OPTOCAST3415 and OPTOCAST3505-HM are epoxy-based, and are one-component ultraviolet curable adhesives. Epoxy ultraviolet curable adhesives have low shrinkage and high heat resistance, and are excellent in chemical resistance and moisture resistance. By using the one-component ultraviolet curable adhesive, the mixing operation of the liquid performed when the two-component ultraviolet curable adhesive is used becomes unnecessary. Accordingly, the adhesive application process is performed quickly and efficiently.

  EMI: OPTOCAST3415 has a viscosity of about 100,000 cps at room temperature, for example, and is reliably cured by heating in addition to UV irradiation. Further, OPTOCAST 3505-HM manufactured by EMI, for example, has a viscosity of about 300 to 500 cps at room temperature, and is reliably cured by being heated in addition to UV irradiation.

  Further, the viscosity of the adhesive when the bonding step is performed is, for example, approximately 2 mPas or more and approximately 180000 mPas or less, for example, at room temperature, specifically at 23 ° C.

  If the viscosity of the adhesive is higher than about 180,000 mPas under room temperature conditions, specifically 23 ° C., there is a concern that the adhesive does not spread substantially uniformly on the adhesive application portion. Is done.

  For this reason, the viscosity of the adhesive when the bonding step is performed is preferably about 60000 mPas or less, for example, at room temperature, specifically at 23 ° C. More preferably, when the bonding step is performed, the adhesive is bonded to the adhesive application portion by setting the viscosity of the adhesive under room temperature conditions, specifically 23 ° C., to about 14000 mPas or less, for example. The agent is surely spread.

  In addition, when the viscosity of the adhesive under the condition at room temperature, specifically 23 ° C., is a low viscosity of less than about 2 mPas, for example, the adhesive may drop from the adhesive application part. Is done.

  Preferably, when the bonding process is performed, the adhesive has a viscosity of, for example, approximately 250 mPas or more under conditions at room temperature, specifically 23 ° C., for example, dripping of the adhesive, etc. Is less likely to occur, and the adhesive remains widely and reliably in the adhesive application portion.

  More preferably, when the bonding step is performed, the adhesive has a viscosity of, for example, approximately 1000 mPas or more under conditions at room temperature, specifically, a temperature condition of 23 ° C., for example, dripping of the adhesive. Generation | occurrence | production etc. become easy to be prevented and an adhesive agent stays in an adhesive application part more reliably.

  In addition, for example, a thin plate (not shown) such as a rolled steel plate (not shown) is subjected to a press die forming process such as a punching process, a bending process, and a pressing process to form the chassis 20, the leaf spring 91, and the like. The More specifically, for example, a metal material plate mainly composed of iron such as a rolled steel plate is used, and the chassis 20, the leaf spring 91, etc. are punched / bent by a press forming machine (none of which is shown). It is formed. Examples of the metal material plate containing iron as a main component include a stainless steel plate, a rolled steel plate, and a strip steel. For example, SPCC, SPCD, SPCE, etc. defined on the basis of “JIS G 3141” can be used as the cold rolled steel plate and / or strip steel.

Alternatively, the leaf spring 91 is formed using, for example, a metal material that can be used as a conductor used to release static electricity, noise, or the like. Specifically, a phosphor bronze plate material that is excellent in strength, spring characteristics, corrosion resistance, etc. and can be used as a conductor is subjected to press working such as punching or bending, so that a plate spring 91 having a substantially plate shape or the like is formed. Press molded. For example, a metal material plate mainly composed of copper is used, and a plate spring 91 having a substantially flat plate shape is punched and formed by a press molding machine or the like. As a metal material mainly composed of copper (Cu), for example, a copper alloy containing about 3.5 to 9% tin (Sn) and about 0.03 to 0.5% phosphorus (P) is used. Is preferred. Specifically, as a copper alloy containing copper (Cu) as a main component, tin (Sn) about 7-9%, and phosphorus (P) about 0.03-0.35%, for example, strength, “Spring phosphor bronze” having good spring characteristics, fatigue resistance, corrosion resistance and the like may be used. Examples of the phosphor bronze plate material for spring include C5210 (C5210P) and C5212 (C5212P) defined based on “JIS H3130”.

  Further, the optical disc apparatus 1 includes the traverse mechanism 5 described above.

  Thereby, the optical disc apparatus 1 including the traverse mechanism 5 in which the tilt adjustment such as the parallelism adjustment in the pair of slide shafts 31 and 32 can be surely executed is configured.

  The optical disc apparatus 1 including the OPU 100 and the traverse mechanism 5 records data, information, signals, and the like on the various optical discs M, reproduces data, information, signals, and the like on the various optical discs M, and the various optical discs M. For example, it can be used in a recording / reproducing apparatus that erases data, information, signals, and the like. Further, the optical disk apparatus 1 including the OPU 100 and the traverse mechanism 5 can be used for, for example, a reproduction-only apparatus that reproduces data, information, signals, and the like of the various optical disks M.

  Further, instead of the OPU 100 equipped with the two OBLs 131 and 132, for example, an OPU equipped with one OBL 131 or 132 may be used.

  The state in which the disk M is mounted in the optical disk apparatus 1 will be described. A tray (not shown) that can be inserted into and removed from the optical disk apparatus body 2 of the optical disk apparatus 1 is used. Is provided with a disk M.

  The optical disk apparatus 1 (FIGS. 1, 3 and 6) includes a tray (not shown) in which the optical disk M can be mounted and which can be inserted into and removed from the optical disk apparatus body 2 and a turntable 73 (FIGS. 3 and 6). 6) and a clamper (not shown) that faces the turntable 73 and can clamp the optical disc M, a drive device 40 that includes the turntable 73 and rotates the optical disc M, and the optical disc M The OPU 100 is configured to be irradiated with laser light, and a pair of slide shafts 31 and 32 that movably support the OPU 100 when the OPU 100 is moved along one radial direction D2 of the optical disc M.

  The substantially rectangular box-shaped housing 3 (FIG. 6) constituting the optical disk apparatus 1 is used with respect to the so-called cover 3, and a substantially plate-like tray that can be freely moved in and out is used to accommodate the optical disk M in the optical disk apparatus 1. . A drive device 40 (FIGS. 3 and 6) for rotating the optical disk M is housed in the cover 3 constituting the optical disk device 1. As the drive device 40, a disk drive device 40 having a substantially round plate-like turntable 73 on which the optical disk M is mounted is used. The OPU 100 that reads data / information / signals on the optical disc M, records data / information / signals on the optical disc M, and erases data / information / signals on the optical disc M is a cover that constitutes the optical disc apparatus 1. Equipped in 3. The upper cover (not shown) is attached to the lower cover 3 equipped with various components, and the optical disc apparatus 1 is assembled.

  A clamp device having a turntable 73 and a clamper facing the turntable 73 was used to position the optical disk M having a round hole Mb in the center portion Mc between the turntable 73 and the clamper. It is pinched securely in a state and is detachably fixed.

  The optical disc apparatus 1 is configured to include other parts other than the above-described various parts, but detailed description of other parts is omitted here.

  The OPU 100 and the traverse mechanism 5 are mounted on the optical disc apparatus 1 that is assembled in, for example, a computer, an audio / video device, a game machine, an in-vehicle device (all not shown), and the like. The optical disk apparatus 1 including the OPU 100 and the traverse mechanism 5 includes, for example, a notebook PC (PC: personal computer / personal computer), a laptop PC, a desktop PC, a computer such as an in-vehicle computer, and a computer game machine. Such as a game machine, a CD player / CD recorder, a DVD player / DVD recorder, etc. (not shown).

  The optical disc apparatus 1 including the OPU 100 and the traverse mechanism 5 includes, for example, a “CD” type optical disc, a “DVD” type optical disc, an “HD DVD” type optical disc, a “CBHD” type optical disc, and a “Blu-ray Disc” type. A plurality of optical disks M such as an optical disk can be supported. In addition, the optical disc apparatus 1 including the OPU 100 and the traverse mechanism 5 can support one optical disc M having a plurality of signal surface portions Ma. The optical disk apparatus 1 including the OPU 100 and the traverse mechanism 5 includes a computer, an audio and / or a computer compatible with various optical disks M such as “CD”, “DVD”, “HD DVD”, “CBHD”, and “Blu ray-Disc”. Alternatively, it can be installed in video equipment, game machines, in-vehicle devices, etc. (none is shown).

  As mentioned above, although embodiment of this invention was described, embodiment mentioned above is for making an understanding of this invention easy, and is not for limiting and interpreting this invention. The present invention can be changed / improved without departing from the gist thereof, and equivalents thereof are also included.

1 Optical disk device (disk device)
2 Optical disk device body (disk device body)
3 Cover (housing)
5 Traverse mechanism (drive assembly)
10 Pickup device main body assembly (head main body assembly)
20 Chassis (base part)
20a Upper side surface (surface)
20t thickness 21, 22 screw hole (fixing part for positioning)
23 Rotation center axis (Rotation center)
24, 64 perfect circle axis (perfect circle axis)
25 Rotation adjustment part 26 Round hole (Rotation adjustment center hole part)
27 Oval hole (rotation adjustment hole)
29 Female screw hole (screw hole)
30 Optical Head Drive Device (Head Drive Device)
31, 32 Slide shaft (support)
31a Outer peripheral surface part (surface part)
40 Disk drive device (drive device)
50 Rotating motor main body assembly (motor main body assembly)
60 Circuit board (board)
60a Edge 61,62 Oval hole (fixing part for alignment)
63 Rotation center hole (Center of rotation)
65 Rotation adjustment part 67 Round hole (Rotation adjustment hole part)
69 Relief hole (hole)
70 Rotating motor drive device (motor drive device)
71 Spindle motor (small electric motor)
72 Shaft (Rotating shaft)
73 Turntable (Rotation holding part)
73a Center of rotation (center of rotation axis)
81,82 screw (fastener)
81a, 82a Male thread part (thread part)
81s, 82s Spring washers (washers)
81w, 82w washer (washer)
83 Male thread
84 Male thread (thread)
85 Head 85a Outer peripheral side lower end (lower end)
86a Bottom surface (surface)
87 Cross hole 89 Rivet (fastener)
91 Leaf spring (spring)
91a First contact piece (contact portion)
91b Second contact piece (contact portion)
92a, 92b Lower side surface (surface)
93 Compression coil spring (coil spring)
94 Coil part 95 Linear body 96 1st end part (end part)
97 Second end (end)
100 OPU (Pickup device)
110 Housing 111a, 111b, 112 Sliding part (bearing part)
115 Housing body 131, 132 OBL (optical member)
131a, 132a Lens central part (signal reading part / writing part central part)
131b, 132b Curved surface portion 140 Holder (holding member)
141 Top wall 142 First side wall (side wall)
143 One side wall (side wall)
144 Other side wall (side wall)
145 Second side wall (side wall)
146, 147 End portion 148 Center portion 151 First focus / tilt coil (coil)
152 Second focus / tilt coil (coil)
153 Tracking coil (coil)
160, 161, 162, 163, 164, 165, 166 Suspension wire (support member)
171, 176 Magnet (magnetic member)
172, 177 One surface part 173a, 178a One part 173b, 178b The other part 174a, 179a Positive electrode part 174b, 179b Negative electrode part 180 Frame / yoke (fixing member)
181 Top plate part 182 Substrate part 183,184 Side plate part 190 Actuator (drive device)
191 Movable part 193 Lens holder assembly (Drive main part)
195 Fixed part 197 Damping holding member 199 PWB (substrate)
D1 Focusing direction (direction)
D2 Tracking direction (direction)
D3 Tangential direction (direction)
D4 Tilt direction (direction)
DR movement direction (direction)
LR1 Head device movement center axis LR2 Center-to-center axis M Disk (media)
Ma signal layer (signal surface part)
Mb Round hole Mc Center

Claims (17)

A head main body assembly having a head driving device;
A motor main body assembly having a motor driving device;
With
The drive device assembly, wherein the motor main body assembly is attached to the head main body assembly so as to be adjustable. The drive device assembly according to claim 1, further comprising a stopper that temporarily fixes or fixes the motor main body assembly to the head main body assembly. The head main body assembly is provided with a rotation center portion that is the center when the motor main body assembly is rotated with respect to the head main body assembly.
Corresponding to the rotation center portion of the head main body assembly, the rotation center portion that is the center when the motor main body assembly is rotated with respect to the head main body assembly is the motor main body. The drive device assembly according to claim 1, wherein the drive device assembly is provided in a part assembly. The rotation center portion includes a rotation center axis,
The drive device assembly according to claim 3, wherein the rotation center part includes a rotation center hole. The rotation center portion includes a rotation center hole,
The drive device assembly according to claim 3, wherein the rotation center portion includes a rotation center axis. The head main body assembly is provided with a positioning fixing portion used when fixing the motor main body assembly to the head main body assembly.
Corresponding to the positioning fixing portion of the head main body assembly, an alignment fixing portion used for fixing the motor main body assembly to the head main body assembly is provided in the motor main body assembly. The drive device assembly according to claim 1, wherein the drive device assembly is provided. The positioning fixing portion is a substantially circular shape centered on a rotation center portion of the head main body assembly that is the center when the motor main body assembly is rotated with respect to the head main body assembly. Provided substantially along the axis,
The alignment fixing portion is substantially positive with the rotation center portion of the motor main body assembly being the center when the motor main body assembly is rotated with respect to the head main body assembly. The drive device assembly according to claim 6, wherein the drive device assembly is provided substantially along a circular axis. The positioning fixing portion includes a female screw hole,
The drive device assembly according to claim 6 or 7, wherein the positioning fixing portion includes a substantially oval hole. The positioning fixing portion is configured to include a substantially oval hole,
The drive device assembly according to claim 6 or 7, wherein the positioning fixing portion includes a female screw hole. A stopper for temporarily fixing or fixing the motor main body assembly to the head main body assembly;
After the positioning fixing portion and the positioning fixing portion are aligned, the motor provided to the head main body assembly by the stopper provided in the positioning fixing portion and the positioning fixing portion. The drive device assembly according to any one of claims 6 to 9, wherein the main body assembly is temporarily fixed or fixed. The drive device assembly according to claim 10, wherein the stopper includes a male screw. The head main body assembly is provided with a rotation adjustment unit used when the motor main body assembly is rotated and adjusted with respect to the head main body assembly.
Corresponding to the rotation adjustment portion of the head main body assembly, a rotation adjustment portion used when the motor main body assembly is rotated and adjusted with respect to the head main body assembly is a motor main body assembly. The drive device assembly according to any one of claims 1 to 11, wherein the drive device assembly is provided in a three-dimensional shape. The rotation adjusting unit is
A rotation adjustment center hole corresponding to a rotation adjustment center shaft portion of a rotation jig used when rotating the motor main body assembly relative to the head main body assembly;
A rotation adjustment hole portion corresponding to the rotation adjustment shaft portion of the rotation jig provided side by side with the rotation adjustment center shaft portion,
The drive device assembly according to claim 12, wherein the rotation adjusting portion includes a rotation adjusting hole corresponding to the rotation adjusting shaft portion. The rotation adjustment center hole portion includes a substantially circular hole,
The rotation adjustment hole portion includes a substantially oval hole,
The drive device assembly according to claim 13, wherein the rotation adjustment hole portion includes a substantially circular hole. When the head main body assembly and the motor main body assembly are viewed in plan view,
An inter-center axis line connecting the signal reading unit / writing unit center of the head driving device and the rotation shaft center of the motor driving device;
A head device moving central axis along the moving direction of the head driving device;
The drive device assembly according to any one of claims 1 to 14, wherein substantially coincides with each other. When the head main body assembly and the motor main body assembly are viewed in plan view,
A signal reading / writing unit center of the head driving device;
A rotation shaft center portion of the motor driving device;
The center of rotation of the head main body assembly that is the center when the motor main body assembly is rotated relative to the head main body assembly and / or the motor main body with respect to the head main body assembly. A rotation center part of the motor main body part assembly, which is a center when the part assembly is rotated,
The drive device assembly according to any one of claims 1 to 15, wherein are arranged side by side in a substantially straight line. A disk drive comprising the drive device assembly according to any one of claims 1 to 16.

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