Classifications

• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
  • G11B17/02—Details
  • G11B17/04—Feeding or guiding single record carrier to or from transducer unit
  • G11B17/05—Feeding or guiding single record carrier to or from transducer unit specially adapted for discs not contained within cartridges
  • G11B17/053—Indirect insertion, i.e. with external loading means
  • G11B17/056—Indirect insertion, i.e. with external loading means with sliding loading means
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
  • G11B17/02—Details
  • G11B17/022—Positioning or locking of single discs
  • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
  • G11B17/02—Details
  • G11B17/022—Positioning or locking of single discs
  • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
  • G11B17/0284—Positioning or locking of single discs of discs rotating during transducing operation by clampers
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
  • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
  • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
• • G—PHYSICS
  • G11—INFORMATION STORAGE
  • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
  • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
  • G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon

Definitions

• the present invention relates to a disk device used for recording and / or reproducing information in a compact disk player or the like, and for writing and / or reading information on a disk-shaped information recording medium.
• a disk device has a loading mechanism for transporting a disk-shaped information recording medium (hereinafter, referred to as a disk medium) between a storage position inside the device and a discharge position outside the device.
• a disk medium a disk-shaped information recording medium
• Such a disk device is disclosed, for example, in Japanese Patent Application Laid-Open No. 2002-93013 (page 7, FIG. 2-4).
• a turntable for rotating the disk medium, an optical pickup, and the like are mounted on a base that moves vertically (an intermediate base). ing.
• a pair of shaft portions are formed on both sides of the intermediate base, and these shaft portions are fitted to support portions formed on the device base of the disk device.
• the support portion is a semicircular notch opened upward, and the shaft portion is fitted to the support portion from above.
• an urging mechanism is provided near the support to urge the shaft so as not to fall off the support.
• the present invention has been made in order to solve the above-described problems, and has been made in accordance with an impact such as a drop. It is an object of the present invention to provide a disk device capable of preventing a unit from falling off.
• a turntable for holding and rotating a disk medium according to the present invention, a light guide for performing at least one of writing and reading of information on the medium, a traverse unit having a traverse chassis for supporting the same, and a disk medium And a main chassis for rotatably supporting the traverse unit so as to approach and separate from the disk medium at the storage position.
• the trapper chassis has a pair of rotating shafts coaxial with each other for rotating, and the main chassis has a pair of supporting portions respectively supporting the pair of rotating shafts.
• the rotating shaft has a contact portion that can contact the support portion so as to suppress deformation of the pair of support portions in a direction away from each other.
• the contact portions provided on each of the rotating shafts of the traverse chassis suppress the deformation of the supporting portions in the direction away from each other, so that the rotating shafts are less likely to fall off due to the deformation of the supporting portions. Therefore, it is possible to prevent the traverse unit from dropping from the disk device.
• the disk device also includes a turntable that holds and rotates the disk medium, an optical pickup that performs at least one of writing and reading of information on and from the disk medium, and a traverse chassis that supports these.
• a traverse unit transport means for transporting the disk medium between the storage position and the discharge position, and a main chassis for rotatably supporting the traverse unit so as to approach and separate from the disk medium at the storage position.
• the traverse chassis has a pair of rotating shafts coaxial with each other for rotation, and the main chassis has a pair of supporting portions respectively supporting the pair of rotating shafts.
• the support section has an opening for inserting the rotation axis in a direction substantially parallel to the direction of transport of the disk medium by the transport means.
• FIG. 1 is a perspective view showing a disk device according to Embodiment 1 of the present invention.
• FIG. 2 is a perspective view showing a traverse chassis of the disk device according to Embodiment 1 of the present invention.
• FIG. 3 is a perspective view showing a state where the traverse unit is removed from the disk device according to Embodiment 1 of the present invention.
• FIG. 4 is a perspective view showing a state immediately before a trapper unit is incorporated in the disk device according to Embodiment 1 of the present invention.
• FIG. 5 is a perspective view showing a disk device according to Embodiment 1 of the present invention.
• FIG. 6 is a perspective view showing a state where the tray is in the discharge position in the disk device according to Embodiment 1 of the present invention.
• FIGS. 7A and 7B are schematic diagrams for explaining effects obtained by the disk device according to the first embodiment of the present invention.
• FIG. 8 is a perspective view of the system in which the disk device according to Embodiment 1 of the present invention is incorporated, as viewed from the plus side in the Z-axis direction.
• FIGS. 9 (a), (b) and (c) are diagrams showing measurement examples of impact acceleration when the disk device according to Embodiment 1 of the present invention is dropped.
• FIG. 10 is a perspective view showing a state immediately before a trapper unit is incorporated in the disk device according to Embodiment 2 of the present invention.
• FIG. 11 is a perspective view showing a disk device according to Embodiment 2 of the present invention.
• FIG. 12 is an enlarged perspective view showing a boss support portion of the disk device according to Embodiment 2 of the present invention.
• FIG. 13 is a perspective view showing a state immediately before a trapper unit is incorporated in the disk device according to Embodiment 3 of the present invention.
• FIG. 14 is a perspective view showing a disk device according to Embodiment 3 of the present invention.
• FIG. 15 is a schematic diagram for explaining an effect obtained by the disk device according to the third embodiment of the present invention.
• FIG. 16 is a perspective view showing a traverse chassis of the disk device according to Embodiment 4 of the present invention.
• FIG. 17 is a perspective view showing a state immediately before a trapper unit is incorporated in the disk device according to Embodiment 4 of the present invention.
• FIG. 18 is a perspective view showing a disk device according to Embodiment 4 of the present invention.
• FIG. 19 is a schematic diagram for explaining effects obtained by the disk device according to Embodiment 4 of the present invention.
• FIG. 1 is a perspective view showing the disk device according to the first embodiment.
• the disk device includes a main chassis 10, a trap chassis 20 rotatably supported by the main chassis 10, and a tray 4 supported reciprocally by the main chassis 10.
• the tray 4 has a mounting surface 40 for holding the disk medium 100 horizontally, and transports the disk medium horizontally between a storage position in the disk device and a discharge position outside the disk device.
• a direction orthogonal to the mounting surface 40 of the tray 4 is defined as a Z axis
• a moving direction of the tray 4 is defined as a Y axis.
• the direction orthogonal to the Y axis and the Z axis is defined as the X axis.
• the Z axis the direction from the tray 4 toward the disk medium 100 is defined as plus, and the opposite direction is defined as minus.
• the Y axis the direction in which the tray 4 moves toward the discharge position is defined as minus, and the opposite direction is defined as brass.
• the X axis in Fig.
• the direction toward the upper right is defined as plus
• the direction toward the lower left is defined as minus. 1 and FIG. 8, which will be described later, are shown such that the plus side in the Z-axis direction is at the top. This is the attitude when the disk device is incorporated into a system 9 (FIG. 8) such as a compact disk player.
• the minus side in the Z-axis direction is shown to be upward. This is the posture when the work of incorporating the traverse chassis 20 into the main chassis 10 is performed.
• the traverse chassis 20 is provided with a turntable 30.
• This The turntable 30 is fixed to a rotating shaft of a motor (not shown) attached to the traverse chassis 20.
• a ring-shaped sheet metal 31 is fixed to the upper end surface of the turntable 30.
• a clamp plate 18 is provided on the opposite side of the main chassis 10 with respect to the tray 4.
• the clamp plate 18 is fixed to the main chassis 10 by a pair of legs 18a (only one is shown in FIG. 1) formed at both ends in the X-axis direction.
• a clamper 32 that holds the disk medium 100 with the turntable 30 is attached.
• the clamper 32 is provided with a magnet 33 for magnetically absorbing the ring-shaped sheet metal 31 of the turntable 30 inside thereof.
• the traverse chassis 20 is provided with an optical pickup 35 so as to face the disk medium 100 held on the turntable 30.
• the optical pickup 35 is for writing information on the disk medium 100, reading information recorded on the disk medium 100, or both.
• the pickup 35 is moved in the radial direction of the disk medium 100 by a pickup driving mechanism (not shown) provided in the trapper chassis 20.
• the trapper chassis 20, the turntable 30, the optical pickup 35, and the pickup drive mechanism constitute the trapper unit 2.
• FIG. 2 to 6 are perspective views showing a minus side in the Z-axis direction as an upper side and a plus side in the Y-axis direction as a lower right side.
• FIG. 2 shows the traverse chassis 20.
• FIG. 3 shows the disk drive with the traverse unit 2 removed, and
• FIG. 4 shows the disk drive immediately before the traverse unit 2 is installed.
• FIG. 5 shows a disk drive in which the trapper unit 2 is incorporated, and
• FIG. 6 shows the disk drive when the tray 4 is at the discharge position.
• FIG. 7 is a schematic diagram schematically showing the effect of the first embodiment, in which the negative side in the Z-axis direction is up and the positive side in the X-axis direction is right. As shown in FIG.
• the trapper chassis 20 has a substantially rectangular shape when viewed in the Z-axis direction, and has outer peripheral walls 201 and 203 extending in the X-axis direction. , 203, and outer peripheral walls 202, 204 orthogonal to each other. In the area surrounded by the outer peripheral wall 201 to 204, a mounting portion 205 for incorporating various drive systems, and an opening 2 for mounting an optical pickup 35 and a pickup drive mechanism (not shown) are provided. 0 6 mag forms Have been. Bosses 21a and 21b are formed protruding near the ends on the Y axis direction plus side of the outer peripheral walls 202 and 204, respectively.
• bosses 21a and 21b protrude coaxially outward from the outer peripheral walls 202 and 204 in the X-axis direction. As shown in FIG. 4 or FIG. 7, projections 22a and 22b projecting to the positive side in the Z-axis direction are formed near the tips of the bosses 21a and 21b. Reinforcing plates 24a and 24b are formed near the roots of the bosses 21a and 21b.
• the main chassis 10 is substantially rectangular when viewed in the Z-axis direction, and has outer peripheral walls 101 and 103 extending in the X-axis direction and outer peripheral walls 102 and 1 extending in the Y-axis direction. 04. Inside the outer peripheral walls 102 and 104, a pair of side walls 11a and 11b extending from the outer peripheral wall 103 to the Y axis direction minus side are formed. A top plate 105 is formed between the side wall 11 a and the outer peripheral wall 102, and a top plate 106 is formed between the side wall lib and the outer peripheral wall 104.
• grooves 12a and 12b supporting the bosses 21a and 21b of the traverse chassis 20 are formed at positions facing the posts 21a and 21b. .
• the grooves 12a and 12b are rectangular notches that open on the negative side in the Z-axis direction, and the bosses 21a and 21b are inserted into the inside thereof. Also, as shown in FIG. 5, when the bosses 21 &, 2 lb are inserted into the grooves 12 a, 1213, the projections 22 a, 22 b formed at the tips of the bosses 21 a, 21 b are formed.
• the side walls 11a and 11b face the outer surfaces in the X-axis direction so as to be in contact with each other.
• elastic claws 13a and 13b are provided outside the grooves 12a and 12b in the X-axis direction.
• the elastic claws 13a and 13b are long members formed to protrude from the forces of the top plates 105 and 106 to the minus side in the Z-axis direction.
• Protrusions 14a and 14b projecting inward in the X-axis direction are formed at the tips of the elastic claws 13a and 13b, respectively.
• the protrusions 14a and 14b hold the bosses 21a and 21b so as not to fall out of the grooves 12a and 12b.
• the surfaces of the protruding portions 14a and 14 facing each other have such an inclination that the more they protrude in the X-axis direction toward the plus side in the Z-axis direction.
• a horizontal plane parallel to the XY plane and facing the positive side in the Z-axis direction is formed further on the plus side in the Z-axis direction than the inclined surface.
• the elastic claws 13a and 13b return to the original state, and the horizontal surface described above. Hold the bosses 21a and 21b in the grooves 12a and 12b.
• the side wall 11a, the groove 12a, and the lip 13a are referred to as a boss support 1a (FIG. 7).
• the side wall 11b, the groove 12b, and the lip 13b are used as a boss support portion lb (FIG. 7).
• the cam pins 23 are erected on the outer peripheral wall 201 of the trappers chassis 20.
• a cam member 15 having a cam groove 16 that engages with a cam pin 23 of the traverse chassis 20 is provided inside the outer peripheral wall 101 of the main chassis 10.
• the force member 15 reciprocates in the X-axis direction by a cam drive mechanism (not shown).
• the cam pin 23 moves substantially in the Z-axis direction, and the traverse chassis 20 rotates about the bosses 21a and 21b.
• the cam pins 23 not only engage with the cam grooves 16 but also engage with the positioning grooves 19 formed in the main chassis 10 and extending in the Z-axis direction, thereby positioning the traverse chassis 20 in the X-axis direction. I'm going to do it.
• the rotation of the traverse chassis 20 is performed in order to avoid interference between the turn tape / recorder 30 and the optical pickup 35 and the tray 4 (and the transported disk medium 100) that moves horizontally in the XY plane. That is, when the traverse chassis 20 is parallel to the XY plane, the turntable 30 can be engaged with the center of the disk medium 100, and the optical pickup 35 faces the disk medium 100. On the other hand, when the tray 4 transports the disk medium 100 as shown in FIG. 6, the traverse chassis 20 is inclined with respect to the XY plane, and in this state, the turntable 30 and the optical pickup 35 4 and the disk medium 100 have moved downward from the movement range.
• the traverse unit 2 is inclined with respect to the XY plane.
• the tray 4 is pressed by a loading mechanism (not shown). Move to the discharge position outside the disk drive.
• the cam member 15 is moved by a cam drive mechanism (not shown), whereby the trapper chassis 20 rotates about the bosses 21a and 2lb, and becomes parallel to the XY plane (FIG. 1, ( Figure 5).
• FIG. 1 Figure 1
• the turntable 30 engages with the center of the disk medium 100 held on the tray 4.
• the turntable 30 and the clamper 32 hold the disk medium 100 by magnetic attraction between the ring-shaped sheet metal 31 and the magnet 33.
• the optical pickup 35 is moved between the outer circumference and the inner circumference of the disk medium 100 by a pickup drive mechanism (not shown), and Information is written, read, or both.
• the traverse chassis 20 rotates about the bosses 21a and 21b by the movement of the cam member 15 and is inclined with respect to the XY plane. .
• the turntable 30 and the optical pickup 35 held by the traverse chassis 20 are separated downward from the disk medium 100.
• FIG. 8 is a perspective view showing a state in which a system 9 such as a compact disk player or the like in which the disk device (indicated by reference numeral 1 in FIG. 8) is incorporated is packed. The plus side is shown at the lower right.
• the system 9 has a substantially rectangular parallelepiped housing 91. The four corners on the horizontal plane (XY plane) are held by cushions 92, which are cushioning materials. 3 housed. '
• FIG. 9 is a diagram showing the acceleration (impact acceleration) generated in the disk device when the system 9 packed as shown in FIG. 8 is freely dropped on a concrete surface from a height of 90 cm.
• Figs. 9 (a), (b) and (c) show the disk drive on the plus side in the X-axis direction, the plus side in the Y-axis direction, and the minus side in the Z-axis direction, respectively. The measured values of the impact acceleration when dropped are shown.
• the vertical axis represents the impact acceleration (A)
• the horizontal axis represents the elapsed time (T).
• FIG. 7 (a) is a schematic diagram for explaining the effect of the first embodiment as described above.
• FIG. 7B is a schematic diagram for explaining a comparative example with respect to the first embodiment, that is, a case where the bosses 21a and 21b do not have the projections 22a and 22b.
• the boss support 1a (the side wall 11a, the groove 12a and the groove 12a) are formed.
• the elastic claws 13 a) and the boss support portions 1 b (side walls 11 b, grooves 12 b and elastic claws 13 b) tend to be elastically deformed in a direction away from each other.
• the elastic deformation of the side walls 11a, lib in the direction away from each other is suppressed by the projections 22a, 22b of the trapper chassis 20. Therefore, even if the elastic claws 13a and 13b are elastically deformed, the elastic deformation of the boss support portions 1a and lb as a whole is suppressed.
• tapered surfaces 26a and 26b are formed on the surfaces of the protrusions 22a and 22b on the sides facing each other at the tip ends. The tapered surfaces 26a and 26b guide the projections 22a and 22b to the outside of the side walls 11a and 11b when the boss 21a and 2lb are inserted into the grooves 12a and 12b. Is what you do.
• the traverse unit 2 is less likely to fall off the main chassis 10 and the impact resistance is improved.
• the protrusions provided on the bosses 21 a and 21 b Since the POS support portions 1a and 1b are configured to suppress the elastic deformation by 22a and 22b, the configuration for suppressing the elastic deformation is simplified.
• the provision of the elastic claws 13a, 13b prevents the bosses 21a, 21b from falling off the grooves 12a, 12b, and allows the bosses 21a, 21b to be moved to the grooves 12a, 12b.
• the bosses 21a and 21b of the boss are easily assembled.
• the bosses 21a and 21b can be incorporated into the grooves 12a and 12b of the main chassis 10 in the Z-axis direction, thereby simplifying the assembly of the disk device.
• FIG. 10 and FIG. 11 are perspective views showing the minus side in the Z-axis direction upward and the plus side in the Y-axis direction lower left.
• FIG. 10 shows a state immediately before the trapper cut 2 is incorporated in the disk device according to the second embodiment
• FIG. 11 shows a state in which the traverse unit 2 is incorporated in the disk device.
• boss support portions 5 a which support the bosses 21 a, 21 b of the trapper chassis 20 are provided on the outer side in the X-axis direction of the trappers chassis 20. 5b is formed respectively.
• the boss support portions 5a and 5 have side walls 6a and 6b extending in the Y-axis direction from the outer peripheral wall 103 of the main chassis 10 respectively.
• Each of the side walls 6a and 6b has a horizontal end face (an end face parallel to the XY plane) facing the negative side in the Z-axis direction.
• Blocks 50a and 50b projecting inward from the outer peripheral walls 102 and 104 in the X-axis direction are provided on the outer sides of the side walls 6a and 6b in the X-axis direction.
• FIG. 12 is an enlarged perspective view showing one boss support portion of the disk device, in which the negative side in the Z-axis direction is up and the positive side in the Y-axis direction is down right.
• the block 50 a of the boss support 5 a has a vertical surface 51 facing the outer peripheral wall 103 of the main chassis 10 and a vertical surface parallel to the outer peripheral wall 102. 5 and a horizontal plane 53 formed on the plus side of the vertical planes 51 and 52 in the Z-axis direction.
• a gap slightly larger than the diameter of the boss 21a is provided between the horizontal plane 53 and the side wall 6a in the Z-axis direction.
• the block 50a has a bell face 54 facing the outer peripheral wall 103 adjacent to the side wall 6a on the minus side in the Y-axis direction.
• the horizontal surface of the block 50a and the horizontal end surfaces of the side walls 6a regulate the position of the boss 21a in the Z-axis direction.
• the vertical position 54 of the block 50a regulates the position of the post 21a on the negative side in the Y-axis direction.
• the portion surrounded by the horizontal surface 53 and the vertical surface 54 of the block 50a and the horizontal end surface of the side wall 6a becomes a groove portion 60a for inserting the boss 21a.
• Elastic claws 7a which are long members, extend in the Y-axis direction from the outer peripheral wall 103 of the main chassis 10 to the groove 60a.
• the elastic claw 7a is configured to be elastically deformable around a portion fixed to the outer peripheral wall 103.
• the elastic claw 7a has a mouth of the block 50a and a front end surface facing the face 54, and the front end surface holds the boss 21a in the groove portion 60a. Regulate the position of 1a in the Y-axis direction.
• an inclined surface 71 is formed at the tip of the elastic claw 7a to contact the boss 21a when the boss 21a is pressed against the elastic claw 7a in the Z-axis direction. By pressing the post 21 a against the inclined surface 71 in the Z-axis direction, the elastic claw 7 a is elastically deformed toward the outer peripheral wall 102.
• a pin 75a extending in the Z-axis direction is formed on the outer peripheral wall 102 side of the elastic claw 7a. If the elastic claw 7a is not sufficiently elastically deformed by simply pressing the boss 21a against the inclined surface 71, the worker presses the pin 75a with a finger or the like to make the elastic claw 7a elastic. Can be deformed. Further, a protruding portion 76 protruding on the side opposite to the outer peripheral wall 102 side is formed at the tip of the elastic claw 7a. The protruding portion 76 is for making it difficult for the boss 21a to drop off from the groove portion 60a in the Y-axis direction.
• the other boss support portion 5b is configured substantially symmetrically with the boss support portion 5a about the center of the main chassis 10 in the X-axis direction. That is, as shown in FIG. 11, the boss support portion 5b is The boss 21b is supported in the groove 60b formed by the hook 50b, and the position is regulated by the elastic claw 7b.
• the bosses 21a and 21b of the traverse chassis 20 do not have the protrusions 22a and 22b described in the first embodiment.
• Other configurations are the same as those of the first embodiment.
• the bosses 21 a and 21 are attached to the inclined surfaces 7 1 and 7 b of the elastic claws 7 a and 7 b. (FIG. 12) is pressed in the Z-axis direction to elastically deform the elastic claws 7a and 7b in a direction away from each other.
• the bosses 21a and 21b come into contact with the side walls 6a and 6b, move the bosses 21a and 21b to the Y axis direction minus side. As a result, the bosses 21a and 2lb move over the projecting portions 76 (Fig.
• the elastic claws 7a and 7b of the elastic claws 7a and 7b, and as shown in Fig. 11, the grooves 60a and 60b. Inserted in.
• the insertion direction of the bosses 21a and 21b into the boss support portions 5a and 5b is in the Y-axis direction.
• the elastic claws 7a and 7b return to the state before the elastic deformation.
• the positions of the bosses 21a and 21b in the Y-axis direction are the vertical surfaces 54 of the blocks 50a and 50b (Fig. 12) and the tip surfaces of the elastic claws 7a and 7b.
• the position of the bosses 21a and 21b in the Z-axis direction is regulated by the horizontal end faces of the side walls 6a and 6b and the horizontal surfaces 53 of the blocks 50a and 50b (Fig. 12). Is performed.
• the bosses 2 la and 2 lb are inserted into the boss support portions 5 a and 5 b in the Y-axis direction and not in the Z-axis direction where the greatest impact is applied. 2 1 a and 2 lbs are less likely to fall off the boss supports 5 a and 5 b.
• the bosses 21a and 21b are restricted in position in the Z-axis direction by the blocks 50a and 50b and the side walls 6a and 6b, which are relatively difficult to deform. Hard to fall off from 5b.
• the trapper unit 2 is less likely to fall off, and the impact resistance is further improved. Also boss 2 1 When inserting a, 21b into the boss support parts 5a, 5b, the bosses 21a, 21b can be moved along the elastic claws 7a, 7b to enter the grooves 60a, 60b. As a result, the threading of the bosses 21a and 21b is simplified.
• Embodiment 3 is described below.
• FIGS. 13 and 14 are perspective views showing the minus side in the Z-axis direction as the upper side and the plus side in the Y-axis direction as the lower left.
• FIG. 13 shows a state immediately before the trapper unit 2 of the disk device according to the third embodiment is incorporated
• FIG. 14 shows a state in which the trapper unit 2 is incorporated in the disk device.
• the boss support portions 5a and 5b of the main chassis 10 are configured in the same manner as in the second embodiment.
• the direction in which the boss 21 a, 2 lb enters the boss support portions 5 a, 5 b is the Y-axis direction, whereby the boss 21 a, 2 lb moves from the boss support portions 5 a, 5 b. It has a configuration that makes it hard to fall off.
• protrusions 22a and 22b similar to those in the first embodiment are formed at the tips of the bosses 21a and 21b of the traverse chassis 20.
• the projections 22a, 22b oppose the outer surfaces of the side walls 6a, 6b of the boss support portions 5a, 5b so as to be able to abut.
• FIG. 15 is a schematic diagram schematically showing the effect obtained by the third embodiment, in which the minus side in the Z-axis direction is up and the plus side in the X-axis direction is right.
• the projections 22a and 22b formed at the tips of the bosses 21a and 21b are opposed to the outer surfaces of the side walls 6a and 6 of the boss support portions 5a and 5b, respectively.
• an impact due to a drop or the like of the disk device acts on the boss support portions 5a, 5b, even if the boss support portions 5a, 5b attempt to elastically deform in a direction away from each other, the elastic deformation is caused by the protrusion 22 a, 22 b.
• the elasticity of the boss support portions 5a and 5b in the direction away from each other by the projections 22 & and 22b of the bosses 21a and 2 11 Since the deformation is suppressed, the bosses 21a and 21 fall off from the boss support portions 5a and 5b force unless the pos 21a and 21 or the boss support portions 5a and 5b are damaged. It is extremely unlikely to occur. Therefore, the traverse unit 2 is further prevented from falling off, and the impact resistance is further improved.
• FIG. 16 shows the minus side in the Z-axis direction up and the plus side in the Y-axis direction bottom right.
• Figs. 17 and 18 show the minus side in the Z-axis up and the plus side in the Y-axis direction. It is a perspective view which shows a side from the lower left.
• FIG. 16 shows a traverse chassis 20 of the disk device according to the fourth embodiment.
• FIG. 17 shows a state immediately before the trapper unit 2 of the disk device according to the fourth embodiment is incorporated
• FIG. 18 shows a state where the trapper unit 2 is incorporated in the disk device. As shown in FIGS.
• the bosses 21 a and 2 lb of the trappers chassis 20 according to the fourth embodiment are respectively provided with the protrusions 22 a and 22 b described in the third embodiment at their respective tips. It has protrusions 25a and 25b in addition to 22b.
• the protrusion 25a is formed further on the tip side of the boss 21a than the protrusion 22a, and protrudes on the side opposite to the protrusion 22a.
• the projection 25b is formed further on the tip side of the boss 21b than the projection 22b, and protrudes on the side opposite to the projection 22b.
• FIG. 19 is a schematic diagram schematically showing the effect obtained by the fourth embodiment, in which the minus side in the Z-axis direction is up and the plus side in the X-axis direction is right.
• the projections 22a, 22b of the bosses 21a, 21b can contact the outer surfaces of the side walls 6a, 6.
• the posts 21 a and 2 lb projections 25 a and 25 b are provided on the inner surfaces of the cutouts 55 a and 55 b formed in the blocks 50 a and 5 Ob (outside the X-axis direction).
• the surface facing 56a, 56b is a schematic diagram schematically showing the effect obtained by the fourth embodiment, in which the minus side in the Z-axis direction is up and the plus side in the X-axis direction is right.
• the bosses 21 a, 2 in addition to the configuration of the third embodiment, the bosses 21 a, 2 The elastic deformation of the boss support portions 5a and 5b is further suppressed by the protrusions 25a and 25b formed on the 1b, so that the boss support portions 5a and 5b of the bosses 21a and 21b are not deformed. Unless the bosses 21a and 21b or the boss support portions 5a and 5b are damaged, it is extremely unlikely to fall off. Therefore, the drop of the trappers unit 2 is further suppressed, and the impact resistance is further improved.

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• Feeding And Guiding Record Carriers (AREA)
• Holding Or Fastening Of Disk On Rotational Shaft (AREA)

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Applications Claiming Priority (2)

Publications (1)

Family

ID=32310524

Family Applications (1)

Country Status (6)

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Citations (3)

Family Cites Families (10)

• 2002
  • 2002-11-12 JP JP2002327701A patent/JP3647839B2/ja not_active Expired - Fee Related
• 2003
  • 2003-09-09 TW TW092124820A patent/TWI241560B/zh not_active IP Right Cessation
  • 2003-09-16 US US10/526,401 patent/US7461387B2/en not_active Expired - Fee Related
  • 2003-09-16 WO PCT/JP2003/011780 patent/WO2004044915A1/ja not_active Ceased
  • 2003-09-16 CN CNB038251043A patent/CN1311469C/zh not_active Expired - Fee Related
  • 2003-09-16 EP EP03811062A patent/EP1569233B1/en not_active Expired - Lifetime

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