JP3817553B2 - Information recording medium playback device - Google Patents

Description

  The present invention relates to an information recording medium playback apparatus that smoothly loads information recording media such as CDs stored in a storage unit.

  In recent years, in order to increase the accommodation efficiency of information recording media such as CDs, information recording medium reproducing devices in which many information recording media are accommodated in a rack provided in the main body of the information recording medium reproducing device have become widespread. As shown in FIG. 25, as shown in FIG. 25, Japanese Patent Application No. 8-28310 previously filed by the present patent applicant as an information recording medium reproducing apparatus for improving the accommodation efficiency of the information recording medium has a circular shape. An information recording medium reproducing device having a rack has been proposed. Japanese Laid-Open Patent Publication No. 59-104759 discloses an information recording medium reproducing apparatus as shown in FIGS.

  First, the information recording medium playback apparatus shown in FIG. 25 will be described. In the figure, reference numeral 1 denotes an information recording medium reproducing apparatus main body constituting the information recording medium reproducing apparatus, and a roulette mechanism 3 is attached on a chassis base 2 of the information recording medium reproducing apparatus main body 1. A circular roulette base 3b is rotatably provided on the upper surface of the roulette base 3a of the roulette mechanism 3 so that the roulette mechanism 3 rotates. The lower end of the support shaft 3c is attached to the upper surface of the roulette base 3b, and the lower end of the center post 5 is attached to the upper end of the support shaft 3c. Center holes 4 of a plurality of racks 4a to 4e are attached to the center post 5 at predetermined intervals. A rotation shaft 6a of a fan-shaped door 6 is rotatably supported at the upper end of the center post 5.

  A loading mechanism 7 is provided on the upper surface of the roulette base 3a so as to be movable up and down. Inside the loading mechanism 7, an arm (not shown) for sandwiching an information recording medium D such as a CD is attached in an upright state. At the end of the loading mechanism 7, an arm 7a for taking out the information recording medium D housed in the information recording medium storage section 40 of the racks 4a to 4e is attached in a horizontal state.

  On the other hand, a casing 8, a back plate 9, and an operation panel unit 10 are attached to the chassis base 2. An opening 10 a through which the information recording medium D of the operation panel unit 10 is taken in and out is opened and closed by a fan-shaped door 6.

  Further, each rack 4a-4e is provided with a notch 41 so that the arm 7a of the loading mechanism 7 does not contact any of the racks 4a-4e when the loading mechanism 7 moves in the vertical direction. It has become. In addition, an encoder (not shown) having an outer periphery detection plate and an inner periphery detection plate is disposed in the circumferential direction on the back side of the racks 4a to 4e, and the outer periphery detection plate and the inner periphery detection plate of the encoder are arranged. A sensor (not shown) having a light emitting part and a light receiving part is positioned at the sandwiched position, and the storage position of the information recording medium D in the racks 4a to 4e is identified by the light detection of this sensor. .

  In the information recording medium reproducing apparatus configured as described above, when the information recording medium D to be reproduced is selected by the selection button of the operation panel unit 10, the racks 4a to 4e are synchronously rotated by the rotation of the center post 5, and the encoder and sensor As a result of the position detection of the information recording medium storage unit 40, the information recording medium storage unit 40 storing the information recording medium D is positioned on the front side of the loading mechanism 7. When the information recording medium storage unit 40 is positioned, the arm 7a of the loading mechanism 7 enters from the bottom side of the information recording medium storage unit 40, and at the same time, the information recording medium is formed by the arm 7a and an arm (not shown) inside the loading mechanism 7. The information recording medium D is reproduced by sandwiching D and taking it into the loading mechanism 7 side.

  FIG. 26 and FIG. 27 show other examples of the information recording medium reproducing device, and the same reference numerals are given to the same components as those in the conventional example. The information recording medium reproducing device has a receiving table 12 rotatably provided in the frame 11 and is rotated by a receiving table rotating device 13. A plurality of information recording media D are accommodated in the accommodating table 12. Reference numeral 14 denotes a holding table, on which an information read / write device 15 and an arm driving device 17 for driving the arm 16 are attached. The information read / write device 15 is provided with a guide 15a for smoothly inserting the information recording medium D. Reference numeral 18 denotes an insertion slot for the information recording medium D, and reference numeral 19 denotes a screw for driving the arm 16. A claw 16 a is attached to the arm 16.

  In the information recording medium reproducing apparatus configured as described above, when one of the information recording media D placed on the storage table 12 is selected, the selected information recording medium D is placed in front of the insertion port 18 of the information read / write device 15. The receiving table rotating device 13 rotates until it is positioned at the position. Next, the arm 16 is moved in the X direction in the drawing by the arm driving device 17, and the information recording medium D is inserted into the information reading / writing device 15 by the arm 16 to be in the state d shown by the broken line in the drawing. Here, after the information is read and written, a part of the information recording medium D jumps out of the insertion slot 18 by the mechanism of the information read / write device 15 itself. Therefore, whether or not the information recording medium D is in contact with the arm 16 is detected by a detection means (not shown) provided on the arm 16. When in contact, the claw 16a is rotated in the y direction in the figure by a solenoid (not shown) to grip the information recording medium D. On the other hand, when not in contact, the arm 16 is moved by the arm driving device 17 in the X direction in the drawing until the information recording medium D comes in contact. Grab. Then, the arm 16 is moved in the X ′ direction in the figure by the arm driving device 17, and the information recording medium D is accommodated in the original position on the accommodation table 12, and a series of operations is completed.

  The conventional vertical type information recording medium reproducing apparatus can carry the information recording medium in a so-called vertical position and transport it to the reproducing unit, and further reproduce the information recording medium in the vertical state. When the information recording medium is clamped after being transported to the reproducing unit, it may not be clamped well.

According to the first aspect of the present invention, there is provided an information recording medium accommodating means provided in a housing and capable of accommodating an information recording medium placed vertically, and adjacent to the information recording medium accommodating means. An information recording medium reproducing means for reproducing the information recorded on the selected information recording medium, and an information recording medium selected from the information recording medium accommodating means being placed vertically on the information recording medium reproducing means An information recording medium transporting means for transporting; a support part for supporting the information recording medium transported to the information recording medium reproducing means; and a support part , which is driven in conjunction with the operation of the information recording medium transporting means. And the drive cam moves on the housing in conjunction with the operation of the information recording medium transporting means, so that the support section is configured so that the information recording medium transported is the information. Recording medium Temporarily the information recording medium until it is clamped to the information recording medium reproducing part of the reproduction means mounted support, after being clamped, characterized in that separated from the information recording medium.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected about the thing similar to a prior art example. First, in FIGS. 1 to 5, reference numeral 100 denotes a housing, and a donut-shaped disk holder 120 is rotatably provided as an information recording medium housing unit on a rack base 110 that is a base of the housing 100. ing. The disc holder 120 has a gently semicircular arc-shaped information recording medium storage portion that is open upward, and a plurality of vertical slits 121 are provided so that a plurality of information recording media D can be placed radially. ing. As shown in FIG. 3, a rotation motor 131 serving as a rotational power source of a rack driving unit 130 for rotating the disk holder 120 is attached on the rack base 110 in the vicinity of the substantially central portion of the disk holder 120. A pulley 132 is attached to the output shaft of the motor 131, and a V-belt 133 is stretched between the pulley 132 and a gear pulley 134 supported by the rack base 110. A small gear 135 that is coaxial with the gear pulley 134 meshes with a reduction gear 136 that is pivotally supported by the rack base 110, and a small gear 137 that is coaxially provided with the reduction gear 136 includes a drive gear pivotally supported by the rack base 110. 138 is engaged. The drive gear 138 meshes with a rack 122 formed on the inner peripheral edge of the disk holder 120.

  As shown in FIGS. 2 and 3, a gear drive unit 140 having a mechanism for loading the information recording medium D is provided on the top surface of the rack base 110, which is substantially near the center of the disk holder 120. A loading motor 151, which serves as an opening / closing power source for an information recording medium reproducing unit 300 serving as an information recording medium reproducing unit, is mounted on the gear holder 150. A pulley 152 is attached to the output shaft 151, and a V-belt 153 is stretched between the pulley 152 and a gear pulley 154 supported by the gear holder 150. A small gear 155 coaxial with the gear pulley 154 meshes with a reduction gear 156 supported on the gear holder 150, and a small gear 157 provided coaxially with the reduction gear 156 is a reduction gear supported on the gear holder 150. The small gear 159 provided coaxially with the reduction gear 158 is engaged with a circular drive cam 160 that is supported by the gear holder 150. The protrusion 161 on one side of the circular drive cam 160 is slidably engaged with the cam groove 172 on one side of the drive arm 170 pivotally supported by the pivot 171, and the pivot is rotated as the circular drive cam 160 rotates. The drive arm 170 can be pivoted about 171 and a guide pin 181 provided at the end of the slide plate 180 is fitted in the annular groove 162 on the other side of the circular drive cam 160, so that the circular drive cam 160. The slide plate 180 can be reciprocated along with the rotation.

  As shown in FIG. 3, the slide plate 180 is positioned on the rack base 110 on the lower surface side of the disk holder 120, and the lower surface side of the slide plate 180 is inserted into the guide groove 111 formed in the rack base 110. The slide plate 180 is reciprocally movable in the insertion groove 112 formed in the rack base 110 by slidingly engaging the guide pin 182 projecting from the rack base 110. At the other end of the slide plate 180, a vertical groove-shaped recess 183 for controlling the movement of the pressing piece 190 is provided upward. A guide pin 191 protrudes from the side surface of the pressing piece 190 and is loosely fitted in the recessed portion 183 of the slide plate 180. On the other hand, a guide pin 192 projecting from the other side of the pressing piece 190 in a direction opposite to that of the guide pin 191 is fitted in a shaft hole 201 of the pressing piece holding base 200 described later. As the slide plate 180 reciprocates, the pressing piece 190 can perform a partial arc motion around the guide pin 192. Further, the pressing piece 190 is wedged into the gap between the V groove 193 for sandwiching the information recording medium D and the outer peripheral edge between the information recording medium D and the information recording medium D ′ adjacent to the information recording medium D. Is provided with a side surface 194 so as to be expanded in the circumferential direction of the disc holder 120. Further, a longitudinal groove guide groove 195 is provided in the pressing piece 190, and a guide portion 255 which is a tip of a transfer arm 250 described later is inserted into the guide groove 195.

  On the other hand, the lower end of the clamp post 210 is mounted on the rack base 110 in the substantially central portion of the disk holder 120, and the lower end of the pressing piece is mounted on the rack base 110 on the outer peripheral surface side of the disk holder 120. A pair of left and right guides L220 and R230 are installed over the side surface of the holding base 200 in such a manner as to straddle the upper part of the disc holder 120. As shown in FIG. 4, a guide groove 221 having an escape groove (not shown) and having a partial arc shape is provided on the inner surface of the guide L220 facing the guide R230. A guide pin 261 provided at the end of the guide arm 260 is loosely fitted in the guide groove 221 so as to be slidable. Further, the end portion of the intermediate arm 240 connected to the front end of the drive arm 170 is provided with a guide groove 231 having an escape groove (not shown) on the surface of the guide R230 facing the guide L220 and having a partial arc shape. A guide pin 262 provided at the other end of the guide arm 260 is inserted through the small hole 241 positioned at the center and the small hole 251 positioned in the vicinity of the middle portion of the transfer arm 250 as the information recording medium transfer means. It is loosely slidably fitted.

  Further, the transport arm 250 is provided with transport engagement portions 252a and 252b as recording medium transport engagement portions at both ends thereof, and among these, the transport engagement portion 252a has a selected information recording unit. An inclined portion 253 slidably contacting only the outer peripheral edge of the information recording medium D ′ adjacent to the medium D and a V groove 254 are provided at a position engaging with the outer peripheral edge of the information recording medium D (see FIG. 4). Then, while holding the information recording medium D by the conveying engagement portion 252a and the conveying engagement portion 252b, the information recording medium D is rotated sideways and pulled out from the disc holder 120, and is slid through a V-shaped groove 311 of the disc guide 310 described later. Thus, the information is recorded into the information recording medium reproducing unit 300 as information recording medium reproducing means at the substantially central portion of the disc holder 120. Further, a guide portion 255 having a function as positioning means is provided at the most distal end portion of the transfer arm 250. The guide portion 255 is formed in a thin plate shape (see FIGS. 4 and 5). The guide unit 255 is inserted into the guide groove 195 provided in the pressing piece 190 until the conveyance of the information recording medium D toward the information recording medium reproducing unit 300 is started. As a result, the positioning of the transfer arm 250 is ensured, and therefore, when the transfer of the information recording medium D toward the information recording medium reproducing unit 300 is started by the operation of the transfer arm 250, the transfer engagement unit 250 is started. The joining portions 252a and 252b are accurately engaged with the outer peripheral edge of the information recording medium D that is the conveyance target stored in the disc holder 120.

  As shown in FIG. 5, the alternate long and short dash line 263 indicates the locus of the guide pin 261 located at the end of the guide arm 260 moving along the guide groove 221 of the guide L220, and the alternate long and two short dashes line 264 indicates the guide arm 260. The guide pin 262 located at the other end of the guide has a locus along the guide groove 231 of the guide R230. Then, when the guide arm 260 moves along the guide grooves 221 and 231 of the guide L220 and the guide R230, the locus drawn by the transfer engagement portion 252a of the transfer arm 250 is recorded on the information recording medium D to be reproduced. A habit is imparted so as to form a substantially arc-shaped locus 256 along the outer peripheral edge of the adjacent information recording medium D ′.

  As shown in FIG. 3, a flat drive cam 270 is disposed in the insertion groove 113 on the rack base 110 at a substantially central portion of the disc holder 120 while only allowing reciprocating linear movement. The flat drive cam 270 uses a loading motor 151 as a power source and is operated by a sensor system and a drive system (not shown). Two guide grooves 271 and 272 for restricting the opening / closing operation of the information recording medium reproducing unit 300 including the clamper holder 280 and the servo mechanism 290 are formed on the upper surface of the flat drive cam 270. The clamper holder 280 that is pivotally supported by the clamp post 210 and the guide pins 281 and 291 protruding from the lower portions of the servo mechanism 290 are in sliding contact with the guide grooves 271 and 272 of the flat drive cam 270, respectively. By engaging with each other, the clamper holder 280 and the servo mechanism 290 are opened and closed in accordance with the reciprocating linear movement of the flat drive cam 270. The opening / closing operation of the clamper holder 280 and the servo mechanism 290 presses and conveys the conveyed information recording medium D from one side, and the servo mechanism 290 reproduces the information recording medium D. A pickup, spindle motor, etc. are installed.

  Further, a disk guide 310 and a circular cover 320 are disposed on the rack base 110 at the substantially central portion of the disk holder 120. The cover 320 is provided with a notch 321 so as to be in close contact with a part of the disk guide 310 (see FIG. 3). The disk guide 310 is a guide body that guides the information recording medium D when the information recording medium D placed vertically in the disk holder 120 is turned around to the substantially central portion of the rack base 110 and pulled. Therefore, a V-shaped groove 311 that slides through the information recording medium D is provided, and the outer peripheral edge of the information recording medium D is in sliding contact with the bottom surface 312 of the V-shaped groove 311. An inclined portion 313 is formed on a part of the bottom surface of the V-shaped groove 311 (see FIG. 6).

  As shown in FIG. 3, the sensor holder 330 and the sensor stay 340 are attached to the rack base 110 so as to face each other, and a sensor (not shown) attached to the sensor holder 330 and a light receiving part (not shown) attached to the sensor stay 340 are used. A sensor for detecting the presence / absence of the information recording medium D for detecting the presence / absence of the information recording medium D placed on the disk holder 120 is formed. Incidentally, reference numeral 350 denotes a detection sensor for the address of the disk holder 120, which detects the address of the disk holder 120 based on the width and period of a reflection surface (not shown) provided on the lower surface of the disk holder 120.

  Next, the operation state of the information recording medium reproducing apparatus of the present invention will be described with reference to FIGS. In FIG. 6 and subsequent figures, a part of the configuration is omitted in order to explain the operation state of the disk changer mechanism. First, FIG. 6 is a side view of the information recording medium D in an unloading state. The driving arm 170 holds the most upright position around the pivot 171 according to the rotational position of the circular driving cam 160 and guide arm 260. Is positioned at the right end in the figure along the guide grooves 221 and 231. At the same time, the slide plate 180 is also positioned at the right end in the drawing by the rotational position of the circular drive cam 160, and the pressing piece 190 fitted in the recessed portion 183 of the sliding plate 180 is fitted in the shaft hole 201 of the pressing piece holding base 200. The tilted state is maintained by arcuately moving counterclockwise around the guide pin 192. At this time, the clamper holder 280 and the servo mechanism 290 of the information recording medium reproducing unit 300 are maintained in the opened state.

  Next, an information recording medium D to be reproduced is instructed by a selection button on an operation panel (not shown). When an instruction to select the information recording medium D is executed, the rack driving unit 130 is driven. That is, the rotation due to the start of the rotary motor 131 is transmitted to the pulley 132, the V-belt 133, the gear pulley 134, the small gear 135, the reduction gear 136, the small gear 137, and the drive gear 138 to rotate the rack 122 of the disk holder 120. Then, when it is determined that the information recording medium D is located at the front position of the information recording medium reproducing unit 300 by the sensor for detecting presence / absence of the information recording medium and the address detection sensor 350, the rotation of the disk holder 120 is performed. Stopped. Then, the gear drive unit 140 is driven by the rotation of the loading motor 151 serving as the power source for loading the information recording medium D, that is, the power source of the drive arm 170 and the opening / closing power source of the information recording medium reproducing unit 300, thereby D is loaded.

  The rotation due to the start of the loading motor 151 is transmitted to the circular drive cam 160 via the pulley 152, the V belt 153, the gear pulley 154, the small gear 155, the reduction gear 156, the small gear 157, the reduction gear 158, and the small gear 159. . When the circular drive cam 160 starts to rotate counterclockwise, the guide pin 181 of the slide plate 180 fitted in the annular groove 162 of the circular drive cam 160 starts to move in the left direction in the drawing along the annular groove 162. Accordingly, the slide plate 180 starts a linear motion in the left direction in the figure. Then, the guide pin 191 of the pressing piece 190 loosely fitted in the recessed portion 183 of the slide plate 180 also starts linear movement in the left direction in the drawing, so that the pressing piece 190 enters the shaft hole 201 of the pressing piece holding base 200. A circular arc motion is caused clockwise around the engaged guide pin 192 (see FIG. 12).

  As the circular drive cam 160 continues to rotate counterclockwise, the V groove 193 at the tip of the pressing piece 190 sandwiches the outer peripheral edge of the information recording medium D, and at the same time, the side surface 194 at the tip of the pressing piece 190. Enters the wedge shape between the information recording medium D and the information recording medium D ′ adjacent to the information recording medium D, and the information recording medium D to be reproduced and the information recording medium D ′ adjacent to the information recording medium D are reproduced. Is expanded in the circumferential direction of the disc holder 120 (see FIG. 13). In this state, a part (not shown) of the pressing piece 190 is engaged with a part of the disc holder 120, so that the disc holder 120 is finely moved when the information recording medium D is loaded and unloaded and when the information recording medium D is played. It is supposed not to.

  Even when the circular drive cam 160 continues to rotate counterclockwise, the shape of the annular groove 162 of the circular drive cam 160 keeps the position of the slide plate 180 moving leftward in the figure. (See FIGS. 13 and 14). At this time, as shown in FIGS. 15A and 15B, while the protrusion 161 of the circular drive cam 160 is inserted through the cam groove 172a of the cam groove 172 on the side surface of the drive arm 170, the protrusion 161 Since the locus drawn by the portion 161 and the cam groove 172a are on the same circle, the drive arm 170 is not operating.

  Further, when the circular drive cam 160 continues to rotate counterclockwise, the protrusion 161 of the circular drive cam 160 begins to pass through the substantially linear cam groove 172b of the cam groove 172 as shown in FIG. Therefore, as shown in FIG. 7, the drive arm 170 starts an arc motion in the counterclockwise direction around the pivot 171. Then, as the drive arm 170 makes a circular motion in the counterclockwise direction, the drive arm 170 operates the guide arm 260 and the transfer arm 250 via the intermediate arm 240. At this time, the guide pin 261 of the guide arm 260 operates along the guide groove 221 of the guide L220, and the guide pin 262 of the guide arm 260 operates along the guide groove 231 of the guide R230.

  As shown in FIG. 8, the pressure piece 190 is expanded in the circumferential direction of the disc holder 120 so that the distance between the information recording medium D to be reproduced and the information recording medium D ′ adjacent to the information recording medium D is increased. First, the transport engaging portions 252a and 252b of the transport arm 250 abut on the outer peripheral edge of the information recording medium D placed on the disk holder 120, and then, as shown in FIG. The information recording medium D is drawn out from the disk guide and slid through the V-shaped groove 311 of the disk guide 310 while rotating sideways, and the outer peripheral edge of the information recording medium D is slidably contacted on the bottom surface 312 and the inclined portion 313. Then, the information recording medium D is sent to the information recording medium reproducing unit 300 as shown in FIG. At this time, the positional relationship between the circular drive cam 160 and the drive arm 170 is such that the projection 161 enters the cam groove 172b as shown in FIG. Then, after the information recording medium D is sent to the information recording medium reproducing unit 300 and the information recording medium D is placed at a predetermined position, the protrusion 161 enters the cam groove 172c as shown in FIG. The drive arm 170 is further operated. Then, as shown in FIG. 11, the transport engaging portions 252a and 252b of the transport arm 250 are separated from the outer peripheral edge of the information recording medium D, and the tip of the guide portion 255 of the transport arm 250 is positioned at the information recording medium D. Is kept inserted between the information recording media D ′ adjacent to the information recording medium D ′ and is not separated from the information recording media D ′ adjacent to the information recording medium D. In the above state, the rotation of the loading motor 151 is stopped by a sensor (not shown), and the operation of the transfer arm 250 is stopped.

  At the same time, the circular drive cam 160 causes the flat drive cam 270 to be translated in the right direction in the figure by a drive system (not shown) and is inserted into the guide grooves 271 and 272 of the flat drive cam 270. The clamper holder 280 and the servo mechanism 290 are closed by sliding the guide pins 291 of the servo mechanism 281 and the servo mechanism 290, and the information recording medium D sent from the disk holder 120 in a side turn state is clamped by the transfer arm 250. To do. Then, the information recording medium D can be reproduced by the information recording medium reproducing unit 300.

  On the other hand, when the reproduced information recording medium D is transported to the original position of the disc holder 120, the procedure shown in FIGS. 6 to 11 may be followed in reverse. First, an instruction to select conveyance of the information recording medium D is given by a selection button on an operation panel (not shown). When the conveyance of the information recording medium D is instructed, the flat driving cam 270 is linearly moved in the left direction in FIG. Then, the guide pin 281 of the clamper holder 280 inserted through the guide grooves 271 and 272 of the flat drive cam 270 and the guide pin 291 of the servo mechanism 290 slide to start opening the clamper holder 280 and servo mechanism 290.

  When the loading motor 151 starts reverse rotation, the circular drive cam 160 also starts reverse rotation at the same time. As shown in FIG. 15E, the protrusion 161 of the circular drive cam 160 faces the cam groove 172c of the drive arm 170 toward 172b. Then, the transfer arm 250 starts to descend gradually from the upper stop position, and the transfer engagement portions 252a and 252b of the transfer arm 250 are again moved to the outer periphery of the information recording medium D as shown in FIG. The clamper holder 280 and the servo mechanism 290 are detached from both sides of the information recording medium D, and the clamp of the information recording medium D is released.

  When the circular drive cam 160 continues to rotate in the clockwise direction in the figure, as shown in FIG. 15C, the protrusion 161 operates the drive arm 170 in the clockwise direction while being positioned at the tip of the cam groove 172b. At the same time, the guide pin 261 of the guide arm 260 is operated along the guide groove 221 of the guide L220, and the guide pin 262 of the guide arm 260 is operated along the guide groove 231 of the guide R230. Then, as shown in FIG. 9, the transport arm 250 pulls out the information recording medium D from the information recording medium reproducing unit 300, and slides the V-shaped groove 311 of the disk guide 310 while rotating the information recording medium D sideways. Then, the outer peripheral edge of the information recording medium D is slidably contacted on the inclined portion 313 and the bottom surface 312 and conveyed to the disc holder 120 side. In the operation of returning the information recording medium D to the disc holder 120, before the start of the operation, only the tip portion of the guide portion 255 is already between the information recording media D ′ adjacent to the position where the information recording medium D is returned. positioned. As described above, after the conveyance of the information recording medium D to the information recording medium reproducing unit 300 is completed, the leading end of the guide unit 255 is inserted between the information recording media D ′ adjacent to the information recording medium D. This is because the state is kept as it is. This ensures that the transfer arm 250 is guided between the information recording media D ′. In this manner, the leading end of the guide portion 255 of the transport arm 250 is inserted into the information recording medium D ′ adjacent to the selected information recording medium D and is conducted, and the inclined portion 253 of the transport arm 250 is further connected. Starts sliding contact along the outer peripheral edge of the upper portion of the adjacent information recording medium D ′, and further pushes the upper interval between the information recording media D ′ adjacent to the information recording medium D in the circumferential direction of the disc holder 120. While expanding, it moves to the upper part of the original transport position in the right direction in the figure.

  The information recording medium D engaged with the conveying engagement portions 252 a and 252 b of the conveying arm 250 is inserted through the expanded interval, and the outer peripheral edge of the information recording medium D is from the outer peripheral side of the disc holder 120. In the latter half, the guide portion 255 is inserted into the guide groove 195 of the pressing piece 190, so that the transfer arm 250 is reliably positioned, and thus the transfer engagement portion of the transfer arm 250 is inserted. The information recording medium D engaged with 252a, 252b is securely stored in the original storage position on the disk holder 120 before transport (see FIG. 8).

  When the information recording medium D is stored in the original storage position on the disk holder 120 before the transfer and the transfer is completed, the transfer engaging portions 252a and 252b of the transfer arm 250 perform information recording as shown in FIG. The medium D is detached from the outer peripheral edge of the medium D, and the transport arm 250 stops its operation. The circular drive cam 160 continues to rotate in the clockwise direction, so that the guide pin 181 of the slide plate 180 fitted in the annular groove 162 of the circular drive cam 160 moves along the annular groove 162 in the right direction in the figure. Starting, the slide plate 180 is linearly moved in the right direction in the figure. Then, as shown in FIG. 6, the guide pin 191 of the pressing piece 190 attached to the recessed portion 183 of the slide plate 180 also starts linear movement in the right direction in the drawing, and the pressing piece 190 moves the guide pin 192. The pressing piece 190 that has caused an arc motion counterclockwise at the center and has entered the wedge shape between the information recording medium D and the information recording medium D ′ adjacent to the information recording medium D is detached from each outer peripheral edge. A part (not shown) of the pressing piece 190 is detached from a part of the disc holder 120, and the disc holder 120 becomes rotatable again. When the above state is reached, a sensor (not shown) stops the rotation of the loading motor 151 and the conveyance of the information recording medium D is completed.

  Next, another embodiment of the present invention will be described with reference to FIGS. FIG. 16 is a view for explaining the configuration of the main part of another embodiment of the information recording medium reproducing apparatus of the present invention, and the pressing piece of the above embodiment that makes an arc motion around the guide pin 192. Instead of 190, an operation structure is adopted in which the pressing piece 190 of the loading mechanism, which is a separate configuration, can perform a parallel sliding movement with the reciprocating movement of the slide plate 180, and is adjacent to the information recording medium D and the information recording medium D. The information recording medium D ′ is inserted into and extracted from the information recording medium D ′. About another structure, it has a structure substantially the same as the said Example. Moreover, FIG. 17 is an AA arrow view in FIG. In addition, for the same thing as the said Example, while using the same code | symbol for convenience, after FIG. 16 and a part of substantially the same structure as the said Example are abbreviate | omitted and described, it abbreviate | omits the structure. Please refer to FIG. 1 to FIG. 5 for a certain part.

  First, the other embodiments have substantially the same configuration as the above embodiment, and reference numeral 100 denotes a casing. A donut-shaped disk holder 120 is freely rotatable on a rack base 110 that is a base of the casing 100. (See FIG. 1). A gear drive unit 140 having a mechanism for loading the information recording medium D is provided on the rack base 110 substantially in the center of the disc holder 120, and a power source for loading the information recording medium D, that is, a drive described later. A loading motor 151 serving as an opening / closing power source of the information recording medium reproducing unit 300 serving as the power source of the arm 170 and the information recording medium reproducing unit is attached to the gear holder 150, and a pulley 152 is attached to the output shaft of the loading motor 151. A V-belt 153 is stretched between the pulley 152 and a gear pulley 154 pivotally supported by the gear holder 150. A small gear 155 coaxial with the gear pulley 154 meshes with a reduction gear 156 supported on the gear holder 150, and a small gear 157 provided coaxially with the reduction gear 156 is a reduction gear supported on the gear holder 150. The small gear 159 that is meshed with the gear 158 and coaxial with the reduction gear 158 is meshed with a circular drive cam 160 that is supported by the gear holder 150 (see FIGS. 2 to 3).

  As shown in FIG. 16, the protrusion 161 on one side of the circular drive cam 160 is formed in a cam groove 172 on one side of a drive arm 170 (not shown) that is pivotally supported by the pivot 150a of the gear holder 150. Is engaged. A coil spring (not shown) is disposed on the pivot 150a of the gear holder 150, and imparts the habit of urging the drive arm 170 in a direction to maintain the standing state. On the other hand, the projecting portion 163 is projected from the other side surface of the projecting portion 161. The protrusion 163 reciprocates the flat drive cam 270 by slidingly engaging in a protrusion insertion groove 274 of the flat drive cam 270 described later. Further, an engagement pin 362 provided at a position approximately in the middle of a link 360 described later is in sliding contact with a spiral annular groove 162 provided on the other side surface of the main body of the circular drive cam 160 ( (See FIG. 22).

  The slide plate 180 bulged in the center is located on the rack base 110 that is substantially on the lower surface side of the disk holder 120, and guide pins 113 provided on the rack base 110 are formed in the slide plate 180. The slide plate 180 can reciprocate along the guide pin 113 by slidingly engaging with the provided guide groove 184. A pressing piece 190 is disposed at one end of the slide plate 180. A V-shaped groove 193 for sandwiching the information recording medium D and an outer peripheral edge between the information recording medium D and the information recording medium D ′ adjacent to the information recording medium D are driven in a wedge shape at an upper position of the pressing piece 190. , And a plurality of slits (see FIG. 4) provided radially at the outermost peripheral edge of the disk holder 120 at the lower position. (Not shown) is provided with a wedge member 196 that is driven in a wedge shape to fix the disk holder 120 so as not to be moved finely (see FIG. 20). In addition, a moving pin 363 at the lower end of a link 360 having a later-described configuration for reciprocating the slide plate 180 is loosely fitted to the side piece 185 bent in the vertical direction at the other end of the slide plate 180.

  The link 360 is a hook-like member, and a pivot 361 projects from the upper end of the link 360 in one direction. The link 360 is inserted into the engaging hole 150b of the gear holder 150 so as to be slidable. In addition, an engagement pin 362 protrudes in one direction at a substantially intermediate position of the link 360, and the engagement pin 362 is inserted through the horizontally long insertion hole 150 c of the gear holder 150 and the pivot shaft of the gear holder 150. The circular drive cam 160 pivotally supported by 150d is slidably engaged with a spiral annular groove 162 provided on one surface (see FIG. 22). Furthermore, a moving pin 363 protrudes in the other direction at the lower end of the link 360 and is slidably engaged with a vertically long insertion hole 186 provided in the side piece 185 at the other end of the slide plate 180. Match. With the above configuration, the rotation of the circular drive cam 160 can enable the slide plate 180 to reciprocate via the link 360. In other words, the rotation of the circular drive cam 160 causes the link 360 to pivot about the pivot 361 by pivoting the engagement pin 362 along the annular groove 162, and for the movement located at the lower end of the pivoting link 360. A pin 363 reciprocates the slide plate 180.

  Further, a flat drive cam 270 is disposed in the insertion groove 113 on the rack base 110 at the substantially central portion of the disc holder 120 while only allowing reciprocating linear movement. More specifically, two projecting pins 273 are projected downward on the lower surface of the flat drive cam 270, and the projecting pins 273 are formed on the rack base 110 through insertion holes (not shown, but not shown). (It is provided in a straight line so as to be in the same direction as the conveyance direction of the recording medium D). Further, the protrusion member on the upper surface of the flat drive cam 270 is provided with a protrusion insertion groove 274 having a longitudinal groove shape, and the protrusion 163 enters the protrusion insertion groove 274 as the circular drive cam 160 rotates. At the same time, the flat drive cam 270 is reciprocated linearly while being slidably engaged in the groove. Further, the upper end opening edge of the protrusion insertion groove 274 is slightly larger than the groove diameter so that the protrusion 163 can be easily inserted and removed.

  Further, a concave groove-like disk support portion 275 having an inclined portion 275 a is provided on the upper surface of the flat drive cam 270. The disk support unit 275 temporarily mounts and supports the conveyed information recording medium D until it is clamped by the information recording medium reproducing unit 300. Along with the movement, it is configured to positively leave the clamped information recording medium D.

  Next, the arrangement of the electric / signal lines of the information recording medium reproducing apparatus configured as described above will be described with reference to FIG. In the figure, a main board MB, which is a base on which a CPU and its peripheral circuits are mounted, is positioned at the innermost part (upper side of the paper) in the housing 100 of the information recording medium reproducing apparatus, and guides L220 and R230. It is arranged and fixed at an upper position of the casing 100 that does not contact and interfere with components having the same height. With this arrangement, the disk holder 120 can have the maximum diameter in the housing 100, and the number of disks stored in the disk holder 120 can be increased.

  A plurality of electric / signal line flexible wirings (hereinafter referred to as flexible wirings) are connected to the main board MB. In the figure, description will be made clockwise from the flexible wiring L1 connected to the right end of the main board MB.

  First, the flexible wiring L1 is a headphone output wiring connected to an output terminal on the front grill 101 located on the front side of the casing 100. The flexible wiring L1 is arranged in parallel with the flexible wiring L1 and is positioned on the front grill 101. Connected to the hood opening / closing switch (not shown) is a hood opening / closing control wiring of the flexible wiring L2. Next, the flexible wiring L3 is a loading control wiring for controlling the loading power source of the information recording medium D, and the LED controlling wiring L4 is arranged in parallel with the flexible wiring L3. The flexible wiring L5 is an optical pickup control wiring, the flexible wiring L6 is a spindle motor control wiring, and the flexible wiring L7 is a selection control wiring, and each terminal (not shown) is connected to each flexible wiring. . The flexible wiring L8 is a control board control wiring connected to a control board (not shown) located on the front grill 101. Further, the flexible wiring L9 is a wiring connected to a power board (not shown) that supplies power to the main body.

  Reference numerals 370 and 380 in the figure denote guide supports L and R, respectively, for connecting and fixing the other end of the guide L220 or the guide R230 and the upper surface of the rack base 110. The guide support L370 and the guide support R380 are symmetrical, and the pressing piece 190 is positioned in the guide groove between the opposing side surfaces formed by the guide support L370 and the guide support R380. The guide portion 255 of the transfer arm 250 is inserted. Further, the electric / signal line wiring configured as described above can be applied to the former embodiment.

  Next, the operation state of the information recording medium reproducing apparatus according to the present invention will be described with reference to FIGS. First, FIG. 19 is a side view of the information recording medium D in the unloading state, and the drive arm 170 keeps the most upright position with the pivot 150a of the gear holder 150 as the rotation center depending on the position of the circular drive cam 160. The guide arm 260 is positioned at the right end in the drawing along the guide grooves 221 and 231. At the same time, the slide plate 180 is also positioned at the right end in the figure depending on the position of the circular drive cam 160.

  Next, an information recording medium D to be reproduced is instructed by a selection button on an operation panel (not shown). When the selection instruction of the information recording medium D is performed, the rotation of the disc holder 120 is stopped when the rack driving unit 130 is driven and the information recording medium D is positioned in front of the information recording medium reproducing unit 300.

  Next, the rotation due to the start of the loading motor 151 is transmitted to the circular drive cam 160 via each member, and the circular drive cam 160 starts to rotate counterclockwise. Then, the engagement pin 362 fitted in the annular groove 162 of the circular drive cam 160 starts the circular motion of the link 360 clockwise about the pivot 361, and the swing pin 363 moves the slide plate 180. Move straight in the middle left direction. Then, the wedge member 196 of the pressing piece 190 is engaged between the slits provided at the outermost peripheral edge portion of the disc holder 120, so that the disc holder 120 is loaded when the information recording medium D is loaded and unloaded and when the information recording medium is played. Is securely fixed so that it does not move slightly. The V-groove 193 and the side surface 194 at the tip of the pressing piece 190 enter a wedge shape between the information recording medium D and the information recording medium D ′ adjacent to the information recording medium D, and the information recording medium D to be reproduced is reproduced. And the distance from the information recording medium D ′ adjacent to the information recording medium D to be expanded in the circumferential direction of the disc holder 120.

  Even when the circular drive cam 160 continues to rotate counterclockwise, the shape of the annular groove 162 of the circular drive cam 160 keeps the position of the slide plate 180 moving to the left in the figure. (See FIG. 23). At this time, while the protrusion 161 of the circular drive cam 160 is inserted through the cam groove 172a of the cam groove 172 on the side of the drive arm 170, the locus drawn by the protrusion 161 and the cam groove 172a are on the same circle. Therefore, the drive arm 170 does not operate (see FIGS. 15A and 15B).

  Further, when the circular drive cam 160 continues to rotate counterclockwise, the protrusion 161 of the circular drive cam 160 starts to pass through the substantially straight cam groove 172b of the cam groove 172 on the side surface of the drive arm 170 ( As shown in FIG. 15C, the drive arm 170 starts an arc motion in the counterclockwise direction around the pivot 150 a that is pivotally supported by the gear holder 150. Then, as the drive arm 170 makes a circular motion in the counterclockwise direction, the drive arm 170 operates the guide arm 260 and the transfer arm 250 via the intermediate arm 240. At this time, the guide pin 261 of the guide arm 260 operates along the guide groove 221 of the guide L220, and the guide pin 262 of the guide arm 260 operates along the guide groove 231 of the guide R230.

  In a state where the distance between the information recording medium D to be reproduced and the information recording medium D ′ adjacent to the information recording medium D is widened in the circumferential direction of the disk holder 120 by the V groove 193 and the side surface 194 of the pressing piece 190. The conveying engagement portions 252a and 252b of the conveying arm 250 are in sliding contact with the outer peripheral edge of the information recording medium D placed vertically on the disk holder 120 to pull out the information recording medium D from the disk holder 120 and to the side. Move while turning. At this time, the guide portion 255 is inserted into a guide groove formed by the guide support R380 and a guide support L370 (see FIG. 18) that is symmetrical to the guide support R380. As a result, the positioning of the transfer arm 250 is ensured, and therefore, when the transfer of the information recording medium D toward the information recording medium reproducing unit 300 is started by the operation of the transfer arm 250, the transfer engagement unit 250 is started. The joining portions 252a and 252b are accurately engaged with the outer peripheral edge of the information recording medium D that is the conveyance target stored in the disc holder 120. At this time, the outer peripheral edge of the information recording medium D is in sliding contact with the inclined portion 313 of the disk guide 310. Then, by continuing the rotation of the circular drive cam 160, the protrusion 163 enters the groove from the upper opening of the protrusion insertion groove 274 of the flat drive cam 270, and begins to pass through the protrusion insertion groove 274. Thus, the flat drive cam 270 is moved in the right direction in the figure. Then, the outer peripheral edge of the information recording medium D being transported is in sliding contact with the disk support portion 275 of the moving flat drive cam 270 while being relatively moved, as shown in FIG. D is further moved leftward in the figure and sent to the information recording medium reproducing unit 300. At this time, the positional relationship between the circular drive cam 160 and the drive arm 170 is such that the projection 161 enters the cam groove 172b as shown in FIG.

  After the information recording medium D is fed into the information recording medium reproducing unit 300 and the information recording medium D is placed at a predetermined position, as shown in FIG. 15 (e), the protrusion 161 enters the cam groove 172c and enters the drive arm. 170 is further activated. Then, as shown in FIG. 21, the transport engaging portions 252a and 252b of the transport arm 250 are detached from the outer peripheral edge of the information recording medium D, but the leading end of the guide portion 255 of the transport arm 250 is the disc holder. The information recording medium D ′ adjacent to the information recording medium D placed on the state 120 is held between the information recording media D ′ and the information recording medium D ′ adjacent to the information recording medium D is not separated. . At this time, the drive arm 170 stops its operation due to its cam groove shape, but the circular drive cam 160 continues to rotate.

  The flat drive cam 270 is translated in the right direction in the figure by the circular drive cam 160, and the guide pins 281 of the clamper holder 280 and the guide pins 291 of the servo mechanism 290 inserted through the guide grooves 271 and 272 of the flat drive cam 270 are slid. Then, the clamper holder 280 and the servo mechanism 290 are closed. Then, both side surfaces of the fed information recording medium D are centered and clamped by the clamper holder 280 and the servo mechanism 290, and the outer peripheral edge of the information recording medium D and the disk support portion 275 are positively moved while being relatively moved. By detaching, the information recording medium D can be reproduced by the information recording medium reproducing unit 300. This operation is the same as that in the previous embodiment.

  On the other hand, when the reproduced information recording medium D is transported to the original position of the disc holder 120, the procedure shown in FIGS. 19 to 21 may be followed in reverse. First, an instruction to select conveyance of the information recording medium D is given by a selection button on an operation panel (not shown). When the conveyance of the information recording medium D is instructed, the flat driving cam 270 is linearly moved to the left in FIG. 21 by the gear driving unit 140 by the reverse rotation start of the loading motor 151, whereby the conveying arm 250 is engaged for conveying. The parts 252a and 252b are again engaged with the outer peripheral edge of the information recording medium D, and the clamper holder 280 and the servo mechanism 290 are detached from both side surfaces of the information recording medium D, and the clamping of the information recording medium D is released. The information recording medium D is again placed and supported on the disk support part 275 by the leftward movement of the disk support part 275 once detached in the figure. Then, the transport arm 250 pulls out the information recording medium D from the information recording medium reproducing unit 300, slides the information recording medium D on the disk support part 275 of the flat drive cam 270 while rotating the information recording medium D sideways, and moves to the disk holder 120 side. Transport to. At this time, the guide portion 255 is inserted into the guide groove formed by the guide support R380 and the guide support L370 (see FIG. 18) that is symmetrical to the guide support R380, so that the positioning of the transfer arm 250 is ensured. Thus, the information recording medium D engaged with the transport engaging portions 252a and 252b of the transport arm 250 is securely stored in the original storage position on the disk holder 120 before transport.

When the information recording medium D is stored in the original storage position on the disk holder 120 before transport, the transport engaging portions 252a and 252b of the transport arm 250 are separated from the outer peripheral edge of the information recording medium D and are transported. Stops its operation. The circular drive cam 160 continues to rotate in the clockwise direction, so that the link 360 fitted in the annular groove 162 of the circular drive cam 160 linearly moves the slide plate 180 in the left direction in the drawing. Then, the V groove 193 and the side surface 194 of the pressing piece 190 that have entered the wedge shape between the information recording medium D and the information recording medium D ′ adjacent to the information recording medium D are separated from the outer peripheral edges, respectively. The wedge member 196 of the pressing piece 190 is disengaged from the space between the slits on the outermost periphery of the disc holder 120, and the disc holder 120 becomes rotatable again. Then, the rotation of the loading motor 151 is stopped by a sensor (not shown), and the conveyance of the information recording medium D is completed.
As described above, according to the present invention, it is possible to cope with an increase in the number of sheets to be accommodated with a simple structure, and to reduce the size and cost. Also, the information recording medium can be loaded more smoothly without damaging the recording surface of the adjacent information recording medium.

It is a schematic perspective view concerning the form of one Example of the information recording medium reproducing | regenerating apparatus of this invention. It is a side view for demonstrating the outline of the information recording medium reproducing | regenerating apparatus shown in FIG. FIG. 2 is a schematic plan view in which guides L and R, a drive arm, and the like are partially omitted in order to describe the information recording medium reproducing device shown in FIG. FIG. 2 is a plan assembly diagram for explaining information recording medium transporting means of the information recording medium reproducing apparatus shown in FIG. 1. FIG. 2 is a side view showing the trajectory of each end of the transport arm and guide arm of the information recording medium reproducing apparatus shown in FIG. 1. It is a side view which shows the unloading state of the information recording medium in the information recording medium reproducing | regenerating apparatus of this invention. It is a side view which shows the process in the middle of loading an information recording medium on the information recording medium reproducing | regenerating part by the information recording medium reproducing | regenerating apparatus of this invention. It is a side view which shows the process in the middle of loading an information recording medium on the information recording medium reproducing | regenerating part by the information recording medium reproducing | regenerating apparatus of this invention. It is a side view which shows the process in the middle of loading an information recording medium on the information recording medium reproducing | regenerating part by the information recording medium reproducing | regenerating apparatus of this invention. It is a side view which shows the process in the middle of loading an information recording medium on the information recording medium reproducing | regenerating part by the information recording medium reproducing | regenerating apparatus of this invention. It is a side view which shows the state which loaded the information recording medium on the information recording medium reproducing | regenerating part by the information recording medium reproducing | regenerating apparatus of this invention. It is explanatory drawing for demonstrating operation | movement of the press piece accompanying rotation of the circular drive cam of the information recording medium reproducing | regenerating apparatus of this invention. It is explanatory drawing for demonstrating operation | movement of the press piece accompanying rotation of the circular drive cam of the information recording medium reproducing | regenerating apparatus of this invention. It is explanatory drawing for demonstrating operation | movement of the press piece accompanying rotation of the circular drive cam of the information recording medium reproducing | regenerating apparatus of this invention. It is explanatory drawing for demonstrating operation | movement of the drive arm accompanying rotation of the circular drive cam of the information recording medium reproducing | regenerating apparatus of this invention. It is a schematic explanatory drawing for demonstrating the principal part structure by the other Example of the information recording-medium reproducing | regenerating apparatus of this invention. It is an AA arrow line view in FIG. It is a top view for demonstrating arrangement | positioning of the electric / signal line by the other Example of the information recording-medium reproducing | regenerating apparatus of this invention. It is a side view which shows the unloading state of the information recording medium by the other Example of the information recording medium reproducing | regenerating apparatus of this invention. It is a side view which shows the process in the middle of loading an information recording medium on the information recording medium reproducing | regenerating part by the other Example of the information recording medium reproducing | regenerating apparatus of this invention. It is a side view which shows the state which loaded the information recording medium on the information recording medium reproduction | regeneration part by the other Example of the information recording medium reproduction | regeneration apparatus of this invention. It is a side view for demonstrating operation | movement of the press piece and flat drive cam accompanying rotation of the circular drive cam by other Examples of the information recording-medium reproducing | regenerating apparatus of this invention. It is a side view for demonstrating operation | movement of the press piece and flat drive cam accompanying rotation of the circular drive cam by other Examples of the information recording-medium reproducing | regenerating apparatus of this invention. It is a side view for demonstrating operation | movement of the press piece and flat drive cam accompanying rotation of the circular drive cam by other Examples of the information recording-medium reproducing | regenerating apparatus of this invention. It is a perspective view which shows the conventional information recording medium reproducing | regenerating apparatus provided with the circular rack. It is a perspective view which shows the conventional information recording medium reproducing | regenerating apparatus. FIG. 27 is a schematic side view of FIG. 26.

Explanation of symbols

D Information recording medium D ′ Information recording medium MB adjacent to information recording medium D Main board 100 Case 110 Rack base 120 Disk holder 130 Rack drive unit 140 Gear drive unit 150 Gear holder 160 Circular drive cam 170 Drive arm 180 Slide plate 190 Pressing piece 200 Pressing piece holding base 210 Clamp post 220 Guide L 230 Guide R 240 Intermediate arm 250 Transfer arm 252a, 252b Transfer engaging portion 253 Inclined portion 256 Roughly arcuate locus 260 Guide arm 270 Flat drive cam 280 Clamper holder 290 Servo mechanism 300 Information recording medium playback unit 310 Disc guide 360 Link 370 Guide support L 380 Guide support R

Claims (1)

An information recording medium storage means provided in the housing and capable of being stored in a state in which the information recording medium is vertically mounted;
An information recording medium reproducing unit that is provided adjacent to the information recording medium accommodating unit and reproduces information recorded on the selected information recording medium;
An information recording medium transporting means for transporting the information recording medium selected from the information recording medium housing means to the information recording medium reproducing means in a vertical position;
A support unit for supporting the information recording medium conveyed to the information recording medium reproducing means ;
A drive cam having the support portion and driven in conjunction with the operation of the information recording medium conveying means;
A second drive cam that interlocks the operation of the drive cam and the operation of the information recording medium conveying means,
The drive cam moves on the housing by driving the second drive cam in conjunction with the operation of the information recording medium conveying means,
As the drive cam moves, the support portion temporarily places and supports the information recording medium until the conveyed information recording medium is clamped to the information recording medium reproducing portion of the information recording medium reproducing means. And an information recording medium reproducing apparatus which is separated from the information recording medium after being clamped .

Images