JP2007226885A - Recording and reproducing apparatus, storage detector used for it, and adjustment mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording and reproducing apparatus comprising a storage detector which detects that a drawing assembly is stored at a home position inside a reel hub of a take-up reel. <P>SOLUTION: The storage detector 80 comprises; a sensor unit 82 for determining whether a drawing assembly is stored inside a reel hub of a take-up reel; and a unit attachment section 84 which attaches a sensor unit adjustably at an attachment position of this sensor unit. The sensor unit 82 comprises a unit mounting section 824 where a plurality of adjustment holes 826 on a mounting side are drilled. The unit attachment section 84 is arranged, facing a unit mounting section, and comprises a plurality of adjustment holes 846 on the attachment side at positions corresponding to a plurality of adjustment holes on the mounting side. A plurality of adjustment holes 826 on a mounting side are arranged along with a predetermined adjustment direction C, and a plurality of adjustment holes 846 on an attachment side are arranged along with the predetermined adjustment direction C with shifting by multiples of a predetermined shift amount X from the plurality of adjustment holes on the mounting sides. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a recording / reproducing apparatus represented by DLT (Digital Linear Tape) and LTO (Linear Tape Open), and in particular, storage for detecting whether or not a drawer assembly is stored in a reel hub of a take-up reel. It relates to a detector.

  This type of recording / reproducing apparatus has been developed for backup of computer systems, and various devices have been proposed. For example, a recording / reproducing apparatus as an LTO is disclosed in Patent Document 1 and the like.

  The recording / reproducing apparatus is also called a tape drive and can be loaded with a cartridge having a single reel (supply reel). The cartridge is also called a cassette. The recording / reproducing apparatus incorporates a take-up reel. When the cartridge is loaded into the recording / reproducing apparatus, the magnetic tape is pulled out from the cartridge and taken up by the take-up reel through the tape transfer path. The tape transfer path is for guiding the magnetic tape drawn from the cartridge to the magnetic head. The magnetic head exchanges information with the magnetic tape. The take-up reel is rotated by a reel motor.

  As disclosed in Patent Document 1, the cartridge includes a housing, a supply reel that can be rotated and housed in the housing, a magnetic tape wound around a reel hub of the supply reel, and a free play of the magnetic tape. And a coupling element connected to the magnetic tape in the end region and held at the coupling position. The coupling element is also called a leader pin.

  In order to be able to take up the magnetic tape stored in the cartridge onto the take-up reel, the magnetic tape is first sent to the take-up reel by the leader pin. For this purpose, the recording / reproducing apparatus is provided with a drawer element. This extraction element can be coupled to a leader pin. The extraction element is also called a grabber.

  In order to allow the grabber to be coupled to the leader pin, the recording / reproducing apparatus is provided with holding means for detachably holding the grabber. This holding means is movable between a standby position and an operating position. Movement of the holding means to the operating position causes movement of the grabber in the coupling direction and coupling of the grabber and the leader pin. On the other hand, the retraction movement of the holding means from the operating position causes the grabber to move in the direction opposite to the coupling direction and the grabber and the leader pin to separate.

  In order to form a drawer assembly after the grabber and the leader pin are coupled and to move the drawer assembly from the holding means to the reel hub of the take-up reel, an operation means is provided in the recording / reproducing apparatus. . The operating means is simply formed by a drawer tape. The drawer tape is guided along the tape transfer path. The drawer tape is also called a leader tape.

  In the conventional magnetic recording apparatus, one end of the leader tape is connected to the grabber, and the other end is connected to the reel hub of the take-up reel. Therefore, by driving the take-up reel in the take-up direction with a reel motor, the drawer assembly can be moved from the holding means to the reel hub of the take-up reel by a simple leader tape. The drawer assembly is united with the reel hub. The combination of the take-up reel and the reel motor is called a take-up mechanism.

  As described above, Patent Document 1 discloses a recording / reproducing apparatus (tape drive) using a leader tape. In such a recording / reproducing apparatus, the take-up reel includes a reel hub, an upper reel flange integrated with the reel hub, and a lower reel flange connected to the reel hub by adhesive bonding or ultrasonic welding. By rotating the take-up reel in a predetermined direction, the drawer assembly can be moved from the holding means to the reel hub of the take-up reel via the drawer tape (leader tape), and the reel hub and the drawer assembly can be engaged. In order to make this possible, the shape of the reel hub is different from that of the circular cylinder, and the circular segment shape is not formed. When the reel hub and the drawer assembly of the take-up reel are engaged, both the partially cylindrical peripheral surface of the reel hub and the partially cylindrical peripheral surface of the drawer assembly may wind up the magnetic tape. A cylindrical magnetic tape winding surface is formed.

  In the recording / reproducing apparatus disclosed in Patent Document 1, radial positioning means is provided between the reel hub of the take-up reel and the drawer assembly, and this radial positioning means is connected to the first protruding portion protruding from the reel hub and the drawer. It is formed by two projecting portions of the second projecting portion projecting from the assembly.

  In such a recording / reproducing apparatus using a leader tape, in order to stably read / write data from / to the magnetic tape, it is necessary to take up the magnetic tape on the take-up reel regardless of the leader tape. . In the recording / reproducing apparatus disclosed in Patent Document 1, a leader tape is directly wound around a reel hub of a take-up reel.

  On the other hand, connecting magnetic tape from a single reel cartridge to the take-up reel creates a relatively simple and consistent tape winding surface and provides a reliable way to provide a relatively strong connection between the leader tape and magnetic tape A possible tape threading apparatus is known (for example, see Patent Document 2). The tape threading device disclosed in Patent Document 2 is a concentric support with respect to an external drum and a take-up reel having an external drum configured to receive a magnetic tape that can be wound in a spool manner. And a leader tape having a first end engaging the leader drum and a second end with a tape connector (leader block). The external drum is provided with a leader tape opening. The leader tape opening is configured to freely pass a part of the leader tape. The leader tape opening is configured not to pass the tape connector. In such a configuration, the leader tape can be wound around the leader drum and the magnetic tape can be wound around the external drum separately. The tape connector is of a size that allows the geometric shape of the tape connector to be engaged with the outer surface of the external drum without causing a bumpy surface.

  A recording / reproducing apparatus using a punt cam arm or a threader arm instead of the leader tape is also known (see, for example, Patent Document 3 and Patent Document 4).

  As disclosed in Patent Document 3, a recording / reproducing apparatus using a punt cam arm uses a punt cam arm that carries a leader pin that captures the leader block, and the leader block is attached to the magnetic tape to be processed. It is attached. After the punt cam arm captures the leader block, it swings the leader block around the arcuate tape guide and then houses the leader block in the take-up reel. When the take-up reel is rotating, the magnetic tape moves adjacent to the magnetic head, which is located in the middle of the tape guide. After the magnetic tape is processed, the supply reel in the cartridge returns the magnetic tape to the cartridge, and the punt cam arm places the leader block in the cartridge where it leaves the leader block.

  In the recording / reproducing apparatus using a threader arm disclosed in Patent Document 4, the threader arm includes a drive arm that is rotationally driven by a drive unit such as a motor, and a driven arm that is rotatably coupled to the drive arm. Consists of. A threader pin is fixed to the tip of the driven arm. When the cartridge is mounted on the recording / reproducing apparatus and the drive arm is driven, the threader pin that engages the leader block of the cartridge conveys the leader block to the machine reel (winding reel) side. When taking out the cartridge, the threader pin conveys the leader block from the machine reel (winding reel) to the cartridge along the guide groove.

  In any of the recording / reproducing apparatuses disclosed in Patent Literature 3 and Patent Literature 4, when the leader block is accommodated in a take-up reel (machine reel), one surface of the leader block is the reel hub of the take-up reel. A part of the magnetic tape winding surface is formed.

JP-T-2002-530792 JP 2000-48438 A Japanese Patent Laid-Open No. 10-11724 Japanese Patent Laid-Open No. 11-328635

  As described above, the recording / reproducing apparatus disclosed in Patent Document 1 has the following problems because the leader tape is directly wound around the take-up reel.

  First, when the leader tape is thick and strong, or when the winding force is weak, there is a problem that the magnetic tape is not taken up along the reel hub of the take-up reel, resulting in uneven winding. Further, when the leader tape is thin, there are problems that handling becomes difficult and durability. Therefore, the winding of the magnetic tape is greatly affected by the leader tape.

  On the other hand, in the tape threading device disclosed in Patent Document 2, when the tape connector (leader block) is accommodated in the leader tape opening, the tape connector is one of the substantially cylindrical magnetic tape winding surfaces. It is necessary to form a part. Otherwise, the reel hub of the take-up reel will not have an accurate cylindrical shape, and wrinkles of the magnetic tape will occur. As a result, it becomes difficult to run the magnetic tape at a constant speed. Therefore, it is necessary to precisely manufacture the tape connector (leader block) and the leader tape opening, and it is necessary to accurately position the tape connector to the writer tape opening.

  Further, in the recording / reproducing apparatus disclosed in Patent Document 3 and Patent Document 4, many components are interposed between the leader block and the take-up reel (machine reel). Therefore, it is difficult to accurately form a cylindrical magnetic tape take-up surface only with the accuracy of the leader block and the take-up reel when taking into account component variations and cumulative tolerances.

  Therefore, when the recording / reproducing apparatus as disclosed in Patent Documents 3 to 4 is employed, it is determined whether or not the drawer assembly (tape connector, leader block) is stored in a fixed position inside the reel hub of the take-up reel. It is conceivable to provide a sensor unit for judging.

  However, in the conventional recording / reproducing apparatus, such a sensor unit is simply provided. Therefore, the positioning accuracy of the mounting position of the sensor unit depends on the component accuracy, and there is no method for adjusting the mounting position of the sensor unit. For this reason, when the variation of the sensor unit is considered, there is a possibility that the sensor unit reacts (outputs a detection signal) before and after the drawer assembly is placed in a fixed position inside the reel hub of the take-up reel. In such a case, the magnetic tape winding surface becomes uneven, and it becomes difficult to wind the magnetic tape at a constant speed.

  Accordingly, an object of the present invention is to provide a recording / reproducing apparatus including a storage detector that detects that a drawer assembly is stored in a fixed position inside a reel hub of a take-up reel.

  Another object of the present invention is to provide an adjustment mechanism capable of adjusting the attachment position of an object.

  According to a first aspect of the present invention, there is provided a recording / reproducing apparatus (10) comprising a take-up reel (20) for taking up a magnetic tape stored in a cartridge, wherein the cartridge is the magnetic tape. The recording / reproducing apparatus is coupled to the leader pin (LP) when the cartridge is loaded in the recording / reproducing apparatus, and a drawer assembly (150). The drawer assembly (150) is housed inside a cylindrical reel hub (21) of the take-up reel (20), and the grabber (15) holds the magnetic tape. In the recording / reproducing apparatus, wherein the drawer assembly (150) is configured to form a part of a magnetic tape winding surface for winding, the drawer assembly (150) includes the reel hub (21). It has a sensor unit (82) for judging whether it was stored in the inside, and a unit attachment part (84) which attaches the sensor unit so that the attachment position of the sensor unit can be adjusted. A recording / reproducing apparatus is obtained.

  In the recording / reproducing apparatus according to the first aspect of the present invention, the sensor unit (82) has a unit mounting portion (824) in which a plurality of mounting side adjustment holes (826) are formed, and the unit The mounting portion (84) is preferably provided facing the unit mounting portion and has a plurality of mounting side adjustment holes (846) at positions corresponding to the plurality of mounting side adjustment holes. In this case, the plurality of mounting side adjustment holes (826) are arranged along a predetermined adjustment direction (C), and the plurality of attachment side adjustment holes (846) are arranged in the predetermined adjustment direction (C ), And the plurality of mounting side adjustment holes are preferably shifted by a multiple of a predetermined shift amount (X). The sensor unit (82) includes, for example, a sensor substrate (822), a sensor (86) disposed on the sensor substrate, and a sensor arm (shielding / opening the sensor disposed on the sensor substrate). 88). The sensor is composed of, for example, a photo interrupter. The drawer assembly (150) includes operating means (61, 62, 63, 64, 65, 66-) having a grabber shaft (632) inserted into a through hole (15a) drilled in the grabber (15). 1-66-4), the take-up reel (20) may be moved to the inside of the reel hub (21). In this case, the sensor arm (88) includes, for example, a rotation shaft (881) that rotates on the sensor substrate, and an engagement arm (882) that extends from the rotation shaft and engages with the grabber shaft. ) And a shielding arm (883) extending from the pivot shaft to shield / open the sensor.

  According to the second aspect of the present invention, the drawer assembly (150) in which the grabber (15) and the leader pin (LP) are coupled is provided inside the cylindrical reel hub (21) of the take-up reel (20). A storage detector (80) for detecting whether or not the drawer assembly (150) is stored, and a sensor unit (82) for determining whether or not the drawer assembly (150) is stored inside the reel hub (21). And a unit mounting portion (84) for mounting the sensor unit so that the mounting position of the sensor unit can be adjusted.

  In the storage detector according to the second aspect of the present invention, the plurality of mounting side adjustment holes (826) are arranged along a predetermined adjustment direction (C), and the plurality of mounting side adjustment holes (846) are arranged along the predetermined adjustment direction (C), and are shifted from the plurality of mounting side adjustment holes (826) by a multiple of a predetermined shift amount (X). It is preferable. The sensor unit (82) includes, for example, a sensor substrate (822), a sensor (86) disposed on the sensor substrate, and a sensor arm (shielding / opening the sensor disposed on the sensor substrate). 88). The sensor (86) may comprise, for example, a photo interrupter. The drawer assembly (150) includes operating means (61, 62, 63, 64, 65, 66-) having a grabber shaft (632) inserted into a through hole (15a) formed in the grabber (15). 1-66-4), the take-up reel (20) may be moved to the inside of the reel hub (21). In this case, the sensor arm (88) includes a rotation shaft (881) that rotates on the sensor substrate, and an engagement arm that extends from the rotation shaft and engages with the grabber shaft (632). 882) and a shielding arm (883) extending from the pivot shaft to shield / open the sensor.

  According to the third aspect of the present invention, the adjustment mechanism adjusts the mounting position of the object (82), and the mounting part (824) for mounting the object and the mounting position of the mounting part can be adjusted. And an attachment portion (84) for attaching the mounting portion to the adjustment mechanism (80).

  In the adjustment mechanism according to the third aspect of the present invention, the mounting portion (824) has a plurality of mounting side adjustment holes (826), and the mounting portion (84) has the plurality of mounting side adjustment holes. It is preferable to have a plurality of attachment side adjustment holes (846) at corresponding positions. The plurality of mounting side adjustment holes (826) are arranged along a predetermined adjustment direction (C), and the plurality of mounting side adjustment holes (846) are arranged along the predetermined adjustment direction (C). And the plurality of mounting side adjustment holes may be shifted by a multiple of a predetermined shift amount (X). The object may be, for example, a sensor unit (82) or a roller shaft.

  In addition, the code | symbol in the said parenthesis is attached | subjected in order to make an understanding of this invention easy, and it is only an example, and of course is not limited to these.

  According to the present invention, since the unit attachment portion for attaching the sensor unit is provided so that the attachment position of the sensor unit can be adjusted, there is an effect that the attachment position of the sensor unit can be easily adjusted. As a result, it is possible to easily suppress variations in the adjustment of the mounting position by the operator.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, a tape drive 10 as a recording / reproducing apparatus to which the present invention is applied will be described with reference to FIGS. FIG. 1 is a perspective view of the tape drive 10 with the upper lid removed as viewed from the upper surface side. FIG. 2 is an exploded perspective view of the tape drive 10 shown in FIG.

  The tape drive 10 is for receiving a cartridge (not shown), and incorporates a take-up reel 20 therein. The take-up reel 20 is also called a spool. The tape drive 10 has a substantially rectangular parallelepiped housing (chassis) 11 having a common base. The base has first and second spindle motors (reel motors). The first spindle motor (reel motor) (not shown) has a spool (winding reel) 20 permanently attached to the base of the housing 11, and the spool 20 is a magnetic tape that flows at a relatively high speed. It is sized to receive (not shown). The second spindle motor (reel motor) 12 is adapted to receive a removable cartridge. The removable cartridge is inserted into the tape drive 10 through the right slider cam 13R and the left slider cam 13L formed in the housing 11 of the tape drive 10 along the insertion direction indicated by the arrow A. The right slider cam 13R and the left slider cam 13L are connected via a connection gear (not shown). A combination (13R, 13L) of the right slider cam 13R, the left slider cam 13L, and the connecting gear is called a cam slider.

  When the cartridge is inserted into the cam slider (13R, 13L), as will be described later, the cartridge is automatically loaded after being engaged (held) by the cartridge holder 14, and the cartridge is second spindle motor (reel motor). 12 is engaged. Before the first and second spindle motors (reel motors) are rotated, the cartridge is permanently attached to the spool (winding) by the combination of the grabber 15 and the leader pin LP (shown later) as described later. Reel) 20. Many rollers (guide rollers) 16 positioned between the cartridge and the permanent spool 20 are used to move the magnetic tape back and forth between the cartridge and the permanently mounted spool 20 at a relatively high speed. invite.

  The tape drive 10 further includes a head actuator 17 having a magnetic head 17a. The head actuator 17 is disposed on a tape transport path (shown later) defined by the plurality of rollers 16 and a take-up reel 20 and a cartridge. Is positioned between. During operation, the magnetic tape flows back and forth between the take-up reel 20 and the cartridge, and comes in close proximity to the magnetic head 17a of the head actuator 17 while flowing on the defined tape transfer path.

  The tape drive 10 includes guide means 18 for guiding a drawer assembly 150 having a leader pin LP coupled to the grabber 15 between the take-up reel 20 and the cartridge.

  The tape drive 10 has a switch (not shown) provided on the main surface of the chassis 11 on the front right side. This switch is for detecting a position where automatic loading is started after the cartridge is inserted into the cam slider (13R, 13L). The switch is called a start switch. The start switch is composed of a photo interrupter. The right slider cam 13R has a shielding plate (not shown) for shielding the start switch.

  The tape drive 10 includes a mode motor (drive motor) 30 on the main surface of the chassis 11. In the illustrated example, the thing mode motor (drive motor) 30 is mounted on the right front side of the chassis 11. The mode motor (drive motor) 30 is covered with a motor bracket 31 fixed on the chassis 11. A plurality of reduction gears 32 are mounted on the motor bracket 31. These reduction gears 32 are rotated by the driving force of a mode motor (drive motor) 30. Of the plurality of reduction gears 32, two reduction gears 32-1 and 32-2 are mounted on the motor bracket 31 so as to be rotatable around the same rotation axis. Here, the reduction gear 32-1 is referred to as a first reduction gear, and the reduction gear 32-2 is referred to as a second reduction gear.

  A clutch member 40 is mounted on the motor bracket (fixing member) 31. The clutch member 40 includes first and second clutch gears 41 and 42 that are rotatably provided around the same rotation shaft 40a. The first clutch gear 41 is called a lower clutch gear because it is arranged on the lower side, and the second clutch gear 42 is called an upper clutch gear because it is arranged on the upper side. The first clutch gear 41 meshes with the first reduction gear 32-1, and the second clutch gear 42 meshes with the second reduction gear 32-2. The second clutch gear 42 meshes with a gear rack 50 fixedly attached to the right slider cam 13R via the reduction gear 32-2.

  That is, the first reduction gear 32-1 is for transmitting the driving force of the driving motor 30 to the clutch member 40. The second reduction gear 32-2 is for transmitting the transmission force from the clutch member 40 to the cam sliders (13R, 13L). In any case, the combination of the reduction gear 32, the clutch member 40, and the gear rack 50 operates as a transmission mechanism that transmits the driving force of the mode motor (drive motor) 30 to the cam sliders (13R, 13L).

  Next, referring to FIG. 1 and FIG. 2, the guide means for guiding the cam sliders (13R, 13L) and the cartridge holder 14 will be described.

  The tape drive 10 includes a first guide wall 56 and a second guide wall 57 that extend in the insertion direction A as guide means. Since the first guide wall 56 is arranged on the right side in the insertion direction A, it is called a right guide wall. Since the second guide wall 57 is arranged on the left side in the insertion direction A, it is called a left guide wall.

  The first guide wall (right guide wall) 56 has a first guide groove hole 561 for guiding the right slider cam 13R and the cartridge holder 14. The first guide groove hole 561 has an L-shaped shape extending along the insertion direction A and extending in a direction perpendicular to the insertion direction A toward the chassis 11. A first guide pin 131 projecting laterally from the right slider cam 13R and a second guide pin 142 projecting laterally from the right wall of the cartridge holder 14 are engaged with the first guide groove hole 561. ing.

  The second guide wall (left guide wall) 57 has a pair of second guide groove holes 572 (illustrated later) for guiding the left slider cam 13L and the cartridge holder 14. Each of the pair of second guide groove holes 572 has an L-shaped shape extending along the insertion direction A and extending in a direction perpendicular to the insertion direction A toward the chassis 11. In the pair of second guide groove holes 572, a pair of third guide pins 133 (illustrated later) projecting laterally from the left slider cam 13L, and projecting laterally from the left wall of the cartridge holder 14 respectively. A pair of fourth guide pins 144 (illustrated later) are engaged.

  As shown in FIGS. 1 and 2, the tape drive 10 includes a cartridge holder locking mechanism 36 for locking the cartridge holder 14 (cam sliders (13R, 13L)). This cartridge holder locking mechanism 36 is for preventing the cam sliders (13R, 13L) from moving in the insertion direction A unless the cartridge is correctly inserted into the cartridge holder. Accordingly, when the cartridge is correctly inserted into the cartridge holder 14, the lock of the cartridge holder 14 by the cartridge holder lock mechanism 36 is released, and the cartridge holder 14 can move in the insertion direction A.

  As described above, the cam sliders (13R, 13L) that move the cartridge holder 14 that holds the cartridge are connected to the mode motor (drive motor) 30 via the transmission mechanism described above.

  When the cartridge is completely inserted into the cam slider (13R, 13L), the cartridge is held by the cartridge holder. The cam sliders (13R, 13L) can be moved only along the insertion direction A by the above-described guide means. The cartridge holder 14 is movable along the L-shaped path by the guide means.

  According to such a configuration, when the cartridge is manually inserted into the cam slider (13R, 13L), the lock by the cartridge holder lock mechanism 36 is released, and the cam slider (13R, 13L) moves in the insertion direction A. Since the gear rack 50 is fixedly attached to the right slider cam 13R, the reduction gear 32-2 that meshes with the gear rack 50 rotates clockwise around its rotation axis. As a result, the upper clutch gear 42 of the clutch member 40 rotates counterclockwise around its rotation axis. However, since there is play in the clutch member 40, the lower clutch gear 41 does not rotate. This is a manual load operation. However, it should be noted that when the tape drive 10 is incorporated in an autoloader / library system, the insertion of the cartridge into the cam slider (13R, 13L) is automatically performed by the autoloader / library system.

  On the other hand, as described above, the cam sliders (13R, 13L) and the mode motor (drive motor) 30 are connected via the transmission mechanism. Accordingly, when the mode motor (drive motor) 30 is rotated in a predetermined direction, the cam sliders (13R, 13L) move in the insertion direction A via the transmission mechanism. At this time, the cartridge engaged (held) with the cartridge holder 14 also moves in the insertion direction A. This is an automatic loading operation.

  Switching between the manual loading operation and the automatic loading operation is performed by turning on / off the start switch.

  Next, the operation when loading a cartridge will be described with reference to FIGS.

  As described above, the cartridge holder 14 (cam slider (13R, 13L)) is locked (fixed) by the cartridge holder locking mechanism 36 until the cartridge is inserted.

  In this state, it is assumed that the cartridge is manually inserted along the insertion direction A with respect to the cam sliders (13R, 13L). As a result, the cartridge holder 14 (cam sliders (13R, 13L)) is unlocked by the cartridge holder locking mechanism 36, and the cam sliders (13R, 13L) become movable along the insertion direction A. At this time, the cartridge holder locking mechanism 36 rotates counterclockwise around its rotation axis.

  When the cartridge is completely inserted into the cam slider (13R, 13L), the cartridge is held by the cartridge holder.

  Assume that the cartridge is further manually pushed in the insertion direction A from this state. As a result, the cam sliders (13R, 13L) are pushed in the insertion direction A. As a result, the second reduction gear 32-2 that meshes with the gear rack 50 fixed to the cam sliders (13R, 13L) rotates clockwise around the rotation shaft. As a result, the upper clutch gear 42 of the clutch member 40 meshing with the second reduction gear 32-2 rotates counterclockwise around the rotation axis thereof. As described above, since there is play in the clutch member 40, even if the upper clutch gear 42 rotates, the lower clutch gear 41 does not rotate.

  When the cartridge is manually pushed further in the insertion direction A, the above-mentioned start switch is turned on at a predetermined position, and an automatic load switching signal is sent to a control circuit (not shown). In response to this automatic load switching signal, the control circuit drives a mode motor (drive motor) 30 to rotate the first reduction gear 32-1 clockwise around its rotation axis. As a result, the lower clutch gear 41 of the clutch member 40 meshing with the first reduction gear 32-1 rotates counterclockwise around its rotation axis. Accordingly, the upper clutch gear 42 also rotates counterclockwise around its rotation axis with the play of the clutch member 40. The second reduction gear 32-2 meshing with the upper clutch gear 42 rotates clockwise around its rotation axis. As a result, the gear rack 50 meshed with the second reduction gear 32-2 moves along the insertion direction A, so that the cam sliders (13R, 13L) also move along the insertion direction A. As a result, the cartridge held by the cartridge holder 14 also moves along the insertion direction A. In this way, the automatic loading operation of the cartridge is performed.

  Referring to FIG. 2, as described above, the drawer assembly 150 in which the leader pin LP is coupled to the grabber 15 is guided along the guide means 18 between the take-up reel 20 and the cartridge.

  The guide means 18 includes a guide slot 181 formed in the base 60. The base 60 and the chassis 11 are separated from each other by a distance larger than the width of the magnetic tape in the width direction of the magnetic tape. A guide pin 151 protruding upward from the grabber 15 (drawer assembly 150) is engaged with the guide groove 181.

  At any rate, the drawer assembly 150 in which the leader pin LP is coupled to the grabber 15 moves along the guide means 18 and is stored in a fixed position inside the reel hub 21 of the take-up reel 20 as will be described later.

  The take-up reel 20 has a cylindrical reel hub 21. The outer peripheral surface of the reel hub 21 is used as a magnetic tape winding surface.

  An upper reel flange 22 is attached to the upper end of the reel hub 21, and a lower reel flange 23 is attached to the lower end of the reel hub 21. In the upper reel flange 22 and the lower reel flange 23, an upper guide groove hole 221 and a lower guide groove hole (not shown) for accommodating the drawer assembly 150 are formed obliquely, respectively. The reel hub 21 is formed with an opening 21a for allowing the drawer assembly 150 to pass therethrough. The combination of the upper guide slot 221, the lower guide slot and the opening 21 a serves as a storage portion for storing the drawer assembly 150 inside the reel hub 21.

  With reference to FIGS. 3 and 4 in addition to FIGS. 1 and 2, an operation means for moving the drawer assembly 150 from the cartridge to the reel hub 21 of the take-up reel 20 will be described.

  The operating means has a ring 61 arranged on the upper surface of the base 60 so as to be rotatable around the central axis. The ring 61 has a gear portion 611 at its outer peripheral end. A ring shaft 62 protruding downward is attached to the ring 61 at a predetermined position. The ring shaft 62 and the grabber 15 (drawer assembly 150) are connected by a connecting member 63.

  The connecting member 63 includes a grabber arm 631 and a grabber shaft 632. The grabber arm 631 extends in a plane parallel to the extending surface of the ring 61 (horizontal direction), and the grabber shaft 632 extends in a direction orthogonal to the extending surface of the ring 61 (vertical direction). ing. One end of the grabber arm 631 is connected to the ring shaft 62, and the other end of the grabber arm 631 is connected to the grabber shaft 632. The grabber shaft 632 is inserted into a through hole 15 a formed in the grabber 15.

  Accordingly, the drawer assembly 150 can be moved along the guide means 18 by rotating the ring 61.

  In order to rotate the ring 61, a DC motor 64 is provided between the base 60 and the chassis 11. The DC motor 64 is attached to the chassis 11 by a motor bracket 65. The rotational force of the DC motor 64 is transmitted to the ring 61 via the first to fourth reduction gears 66-1 to 66-4. The fourth reduction gear 66-4 is rotatably mounted on the upper surface of the base 60 and is engaged with the gear portion 611 of the ring 61.

  Further, a grabber state detector 70 for detecting whether the grabber 15 is in a standby state or in an operating state is attached to the base 60. The grabber state detector 70 extends in the insertion direction A on the upper surface of the base 60 and is slidable along the insertion direction A, and the sensor plate 71 with the base 60 interposed therebetween. And a sensor substrate 72 provided to face each other. The sensor plate 71 is always urged in the insertion direction A by a spring (not shown).

  The sensor substrate 72 has first and second sensors 76 and 77 mounted thereon. Each of the first and second sensors 76 and 77 is a photo interrupter. The sensor plate 71 has a sensor plate shielding plate 711 for shielding the first and second sensors 76 and 77.

  The first sensor 76 is for detecting that the grabber 15 is in a standby state, and the second sensor 77 is for detecting that the grabber 15 is in an operating state.

  The operation of the grabber state detector 70 will be described with reference to FIGS. 5 and 6 are perspective views showing a grabber standby state, and FIGS. 7 and 8 are perspective views showing a grabber operating state.

  As shown in FIGS. 5 and 6, in the grabber standby state, the first sensor 76 is shielded by the sensor plate shielding plate 711. In this grabber standby state, the grabber 15 is disposed outside the cartridge.

  In this grabber state, when the ring 61 is rotated clockwise around its central axis, the ring shaft 62 contacts the end face of the sensor plate 71 as shown in FIG. If the ring 61 is further rotated clockwise around the central axis from this state, the ring shaft 62 presses the end surface of the sensor plate 71 against the biasing force of the spring, so that the sensor plate 71 is inserted in the insertion direction A. Slides in the opposite direction B (see FIG. 7). Thereby, the shielding of the first sensor 76 by the sensor plate shielding plate 711 is released.

  When the ring shaft 62 continues to push the end surface of the sensor plate 71 against the biasing force of the spring along with the clockwise rotation of the ring 61, the sensor plate shielding plate 711 as shown in FIG. 7 and FIG. Shields the second sensor 77. That is, the grabber 15 is placed in an operating state. In this grabber operating state, the grabber 15 moves into the cartridge.

  9 and 10 in addition to FIGS. 1 and 2, it is determined whether or not the drawer assembly 150 according to the embodiment of the present invention is accommodated in the reel hub 21 of the take-up reel 20. The storage detector 80 for detection will be described. FIG. 9 is a perspective view showing the main part of the tape drive 10 including the storage detector 80. FIG. 10 is an exploded perspective view showing the storage detector 80 in an enlarged manner.

  As will be described later, the storage detector 80 includes a sensor unit 82 mounted on the base 60 and a unit formed on the base 60 for positioning and mounting the sensor unit 82 while adjusting the mounting position of the sensor unit 82. And an attachment portion 84.

  The sensor unit 82 includes a sensor substrate 822 and a unit mounting portion 824 for mounting the sensor unit 82 on the unit mounting portion 84. The sensor substrate 822 and the unit mounting portion 824 are integrally formed.

  The sensor substrate 822 has a sensor 86 and a sensor arm 88 mounted on the main surface 822a. In the illustrated example, the sensor 86 is configured by a photo interrupter. The sensor arm 88 is rotatably attached around the rotation shaft 881 on the main surface 822a of the sensor substrate 822. The sensor arm 88 is generally L-shaped. The sensor arm 88 extends from the rotation shaft 881 and, as will be described later, engages with a grabber shaft 632 (see FIG. 3), and extends from the rotation shaft 881 to be described later. As described above, a shielding arm 883 for shielding / opening the sensor 86 is provided. The sensor arm 88 is always biased in a direction away from the sensor 86 (clockwise around the rotation shaft 881) by a spring (not shown).

  The sensor substrate 822 protrudes upward from the main surface 822a and engages with the engagement arm 882 to release the sensor 86 in order to restrict the counterclockwise rotation of the rotation shaft 881 of the sensor arm 88. It has the 1st latching | locking part 822b maintained in a state, and the 2nd latching | locking part 822c which protrudes upwards from the main surface 822a and engages with the interruption | blocking arm 883 in the position which the interruption | blocking arm 883 interrupted | blocked the sensor 86. On the other hand, the blocking arm 883 has a protruding portion 883a that protrudes downward in order to engage with the second locking portion 882c.

  The unit mounting portion 824 includes a pair of fixing through holes 824a that pass through a pair of screws (not shown), and a pair of positioning long holes that perform positioning in a direction orthogonal to an adjustment direction C (see FIG. 11) described later. 824b and seven mounting side adjustment holes 826 arranged along the adjustment direction C between the pair of positioning long holes 824b. The intervals between these seven mounting side adjustment holes 826 will be described later.

  On the other hand, the unit mounting portion 84 includes a pair of screw holes 84a provided at positions corresponding to the pair of fixing through holes 824a, a pair of positioning protrusions 84b inserted into the pair of positioning long holes 824b, There are seven attachment-side adjustment holes 846 arranged along the adjustment direction C between the pair of positioning projections 84b. That is, the seven attachment side adjustment holes 846 are provided at positions corresponding to the seven mounting side adjustment holes 826. The intervals between the seven attachment side adjustment holes 846 will be described later.

  Next, with reference to FIG. 11, the interval between the seven mounting side adjustment holes 826 and the interval between the seven attachment side adjustment holes 846 will be described in detail. 11A is a plan view showing the sensor unit 82, and FIG. 11B is a plan view showing the unit mounting portion 84.

  First, with reference to FIG. 11A, the intervals between the seven mounting side adjustment holes 826 will be described. Here, in order to distinguish the seven mounting side adjustment holes 826, the middle hole is represented by 0 as a reference, and the three holes positioned above the hole are +1, +2, in order from the closest to the middle hole, The three holes located below the middle hole are represented as -1, -2, and -3 in order from the side closer to the middle hole.

  Hereinafter, the mounting side adjustment hole represented by the reference 0 is referred to as a 0th mounting side adjustment hole 826-0, and the mounting side adjustment holes represented by +1, +2, and +3 are respectively + 1st. , +2 and +3 mounting side adjustment holes 826 + 1, 826 + 2, and 826 + 3, and the mounting side adjustment holes represented by -1, -2, and -3 are respectively -1, -2, and -2, respectively. -3 mounting side adjustment holes 826-1, 826-2, and 826-3.

  As shown in FIG. 11A, the 0th mounting-side adjustment hole 826-0 and the + 1st mounting-side adjustment hole 826 + 1 are separated by a distance of M, and the 0th mounting-side adjustment hole The mounting hole 826-0 and the (+2) mounting side adjustment hole 826 + 2 are separated by a distance N, and the 0th mounting side adjustment hole 826-0 and the (+3) mounting side adjustment hole 826 + 3 The distance between them is P. Similarly, the 0th mounting side adjustment hole 826-0 and the −1st mounting side adjustment hole 826-1 are separated by a distance of M, and the 0th mounting side adjustment hole 826-0 is separated. And the second mounting side adjustment hole 826-2 are separated by a distance of N, and the zeroth mounting side adjustment hole 826-0 and the third mounting side adjustment hole 826-3 are Are separated by a distance of P.

  Next, with reference to FIG. 11 (B), the interval between the seven attachment side adjustment holes 846 will be described. Here, in order to distinguish the seven attachment side adjustment holes 846, the middle hole is represented by 0 as a reference, and the three holes positioned above the hole are +1, +2, in order from the closest to the middle hole. The three holes located below the middle hole are represented as -1, -2, and -3 in order from the side closer to the middle hole.

  Hereinafter, the attachment side adjustment hole represented by reference 0 is referred to as a 0th attachment side adjustment hole 84-6, and the attachment side adjustment holes represented by +1, +2, and +3 are respectively +1 , +2 and +3 attachment side adjustment holes 846 + 1, 846 + 2 and 846 + 3, and the attachment side adjustment holes represented by −1, −2 and −3 are respectively −1, −2 and −2. -3 mounting side adjustment holes 846-1, 846-2, and 846-3.

  As shown in FIG. 11 (B), the 0th mounting side adjustment hole 844-0 and the + 1st mounting side adjustment hole 846 + 1 are separated by a distance of (M + X), and the 0th mounting side The side adjustment hole 844-0 and the + 2nd attachment side adjustment hole 846 + 2 are separated by a distance of (N + 2X), and the 0th attachment side adjustment hole 84-6 and the +3 attachment side adjustment hole are for adjustment. The hole 846 + 3 is separated by a distance of (P + 3X). Similarly, the 0th attachment-side adjustment hole 847-0 and the -1st attachment-side adjustment hole 846-1 are separated by a distance of (M + X), and the 0th attachment-side adjustment hole 846 is separated. −0 and the −2nd mounting side adjustment hole 846-2 are separated by a distance of (N + 2X), and the 0th mounting side adjustment hole 844-0 and the −3rd mounting side adjustment hole 846-3 is separated by a distance of (P + 3X).

  Thus, the seven attachment side adjustment holes 846 are provided in a state of being shifted by a multiple of the dimension (predetermined amount of slip) X with respect to the seven mounting side adjustment holes 826. This dimension (predetermined deviation amount) X is selected from, for example, 0.1 mm, 0.15 mm, 0.2 mm, and the like.

  When the sensor unit 82 is attached to the unit attachment portion 84 (assembling the storage detector 80), an assembly jig (pin) is inserted into the 0th mounting side adjustment hole 826-0 and the 0th attachment side adjustment hole 826-0. ) Are inserted and positioned, and then tightened to the pair of screw holes 84a through the pair of fixing through holes 824a with a pair of screws.

  Here, it is assumed that the position of the storage detector 80 is to be adjusted. In this case, for example, an assembly jig (pin) is inserted into the + 1st mounting side adjustment hole 826 + 1 and the + 1th attachment side adjustment hole 846 + 1 and screwed. Since the + 1st mounting side adjustment hole 826 + 1 and the + 1th mounting side adjustment hole 846 + 1 are shifted by X with respect to the reference position, the storage detector 80 moves upward in the adjustment direction C from the reference position. It is attached (fixed) in a state of being shifted by only If the adjustment of the mounting position of the storage detector 80 is still insufficient, an assembly jig (pin) is inserted into the +2 mounting side adjustment hole 826 + 2 and the +2 mounting side adjustment hole 846 + 2 and screwed. The storage detector 80 can be moved from the reference position if the assembly jig (pin) is inserted into the +3 mounting side adjustment hole 826 + 3 and the +3 mounting side adjustment hole 846 + 3 and screwed. They are mounted (fixed) in the state of being shifted by 2X and 3X from the reference position above the adjustment direction C, respectively.

  In the example described above, an example in which the attachment position of the storage detector 30 is adjusted upward from the reference position in the adjustment direction C has been described. However, the attachment position of the storage detector 30 is adjusted downward from the reference position in the adjustment direction C. You can also That is, if the assembly jig (pin) is inserted into the first mounting side adjustment hole 826-1 and the first mounting side adjustment hole 846-1 and screwed, the storage detector 80 is It can be attached (fixed) in a state shifted by X from the reference position downward in the adjustment direction C. If the adjustment is still insufficient, an assembly jig (pin) is inserted into the second mounting side adjustment hole 826-2 and the second attachment side adjustment hole 846-2, and screwed. Alternatively, by inserting an assembly jig (pin) into the third mounting side adjustment hole 826-3 and the third mounting side adjustment hole 846-3 and screwing, the storage detector 80 is They can be attached (fixed) in a state of being shifted by 2X and 3X from the reference position downward in the adjustment direction C from the reference position.

  According to the storage detector 80 as described above, the mounting position of the storage position detector 80 can be adjusted only by changing the position where the assembly jig (pin) is inserted without requiring special equipment. it can. In addition, it is possible to easily suppress variations in adjustment by the operator.

  In the above-described example, the mounting side adjustment hole 826 and the attachment side adjustment hole 846 are arranged only in a predetermined one axial direction (one direction), and therefore the adjustment direction C is only a predetermined one axial direction. . However, the mounting adjustment holes and the mounting adjustment holes are two-dimensionally arranged in a plane and the two assembly jigs (pins) are inserted and positioned in two locations so that the adjustment directions are orthogonal to each other. It is also possible to have two axial directions (two directions).

  It is necessary to prevent the take-up reel 20 from rotating until the drawer assembly 150 is housed inside the reel hub 21 of the take-up reel 20. Therefore, as shown in FIGS. 6 and 8, the lower reel flange 23 of the take-up reel 20 has a V-shaped groove 232 on its outer peripheral edge, and the tape drive 10 engages with the V-shaped groove 232. It has a protrusion 111. In any case, the combination of the V-shaped groove 232 and the protrusion 111 is a locking means for preventing the take-up reel 20 from rotating until the drawer assembly 150 is housed inside the reel hub 21 of the take-up reel 20. Work as.

  Next, an operation when the drawer assembly 150 is moved from the grabber standby state to the inside of the reel hub 21 of the take-up reel 20 will be described with reference to FIGS. 12 is a view showing the drawer assembly 150 in a standby state (grabber standby state), FIG. 13 is a view showing the drawer assembly 150 in a moving state, and FIG. FIG. 2 is a view showing a state in which is housed inside the reel hub 21 of the take-up reel 20.

  First, as shown in FIG. 12, it is assumed that the drawer assembly 150 is in a grabber standby state. In this case, the sensor arm 88 is urged counterclockwise around the rotation shaft 881 by the urging force of the spring, and the engagement arm 883 is engaged with the first locking portion 822b. Therefore, the shielding arm 883 of the sensor arm 88 does not shield the sensor 86.

  In this state, driving the DC motor 64 causes the ring 61 to rotate counterclockwise around its rotation axis, as indicated by the arrow D in FIG. As a result, the drawer assembly 150 moves along the guide slot 181 of the guide means 18 in a direction approaching the take-up reel 20.

  When the ring 61 is continuously rotated counterclockwise, the drawer assembly 150 is accommodated in the reel hub 21 of the take-up reel 20 as shown in FIG. At this time, since the engagement arm 882 of the sensor arm 88 engages with the grabber shaft 632, the sensor arm 88 rotates counterclockwise around the rotation shaft 881 as indicated by an arrow E in FIG. To do. Thereby, the shielding arm 882 of the sensor arm 88 shields the sensor 86. Thus, the storage detector 80 detects (determines) that the drawer assembly 150 is in a fixed position inside the reel hub 21 of the take-up reel 20. The storage detector 80 sends a detection signal to a control circuit (not shown). In response to this detection signal, the control circuit stops driving the DC motor 64. As a result, the rotation of the ring 61 stops.

  At the fixed position, the central axis of the grabber shaft 632 coincides with the central axis (rotary axis) of the take-up reel 20. As a result, the take-up reel 20 rotates around the grabber shaft 632 as a central axis. Further, at a fixed position, one side surface of the grabber 15 forms a part of the magnetic tape winding surface of the winding reel 20. That is, the one side surface of the grabber 15 and the outer peripheral surface of the reel hub 21 of the take-up reel 20 form a perfect circular (exact) cylindrical magnetic tape take-up surface. In other words, the magnetic tape winding surface can be made substantially free of irregularities. As a result, the magnetic tape can be wound at a constant speed.

  As described above, after the drawer assembly 150 is housed in the reel hub 21 of the take-up reel 20, the winding is performed by the engagement between the protrusion 111 and the V-shaped groove 232 of the lower flange 23 of the take-up reel 20. The reel 20 is unlocked. Thereafter, when the control circuit drives and rotates a reel motor (not shown) for driving the take-up reel 20, the take-up reel 20 also rotates, and the magnetic tape rotates on the outer peripheral surface of the reel hub 21 of the take-up reel 20. It is wound on (magnetic tape winding surface). Therefore, the magnetic tape is stably wound on the reel hub 21 of the take-up reel 20.

  As described above, the present invention has been described with reference to the preferred embodiments, but the present invention is not limited to the above-described embodiments. For example, in the above-described embodiment, the example in which the present invention is applied to the adjustment of the mounting position of the sensor unit is described, but it is needless to say that the present invention is not limited thereto. For example, in order to adjust the wrapping angle of the roller 16 with respect to the magnetic head 17a, the present invention can be applied to adjustment of the mounting position of the roller shaft for rotatably supporting the roller 16. In this case, a small base (corresponding to the unit mounting portion 824) on which the roller shaft is erected is provided with a hole similar to the mounting side adjustment hole 826, and the chassis 11 (unit mounting portion) to which the small base is attached. 84), a hole similar to the attachment side adjustment hole 846 may be provided. Further, the present invention is not limited to the adjustment of the mounting position of the sensor unit and the roller shaft, and can naturally be applied to any kind of adjustment of the mounting position. Furthermore, the operation means for moving the drawer assembly to the inside of the reel hub of the take-up reel is not limited to that of the above-described embodiment, and various types may be adopted as a matter of course. .

It is the perspective view which looked at the tape drive (recording / reproducing apparatus) with which this invention is applied from the upper surface side in the state which removed the upper cover. FIG. 2 is an exploded perspective view of the tape drive (recording / reproducing apparatus) illustrated in FIG. 1. It is the disassembled perspective view which looked at the operation means used for the tape drive (recording / reproducing apparatus) shown in FIG. 1 from the upper surface side. It is the disassembled perspective view which looked at the operation means shown in FIG. 3 from the lower surface side. It is a perspective view of the tape drive (recording / reproducing apparatus) which shows the grabber standby state for demonstrating operation | movement of the grabber state detector used for the tape drive (recording / reproducing apparatus) shown in FIG. FIG. 6 is a perspective view of a tape drive (recording / reproducing apparatus) showing a grabber standby state for explaining the operation of the grabber state detector shown in FIG. 5. FIG. 6 is a perspective view of a tape drive (recording / reproducing apparatus) showing a grabber operating state for explaining the operation of the grabber state detector shown in FIG. 5. FIG. 6 is a perspective view of a tape drive (recording / reproducing apparatus) showing a grabber operating state for explaining the operation of the grabber state detector shown in FIG. 5. It is a perspective view which shows the principal part of the tape drive (recording / reproducing apparatus) containing the storage detector used for the tape drive (recording / reproducing apparatus) shown in FIG. It is a disassembled perspective view which expands and shows the storage detector shown in FIG. It is a figure for demonstrating the space | interval of the adjustment hole of the storage detector shown in FIG. 10, (A) is a top view which shows the sensor unit in a storage detector, (B) is a unit in a storage detector. It is a top view which shows an attaching part. It is a top view which shows the principal part of a tape drive (recording / reproducing apparatus) when a drawer assembly exists in a standby state. It is a top view which shows the principal part of a tape drive (recording / reproducing apparatus) when a drawer assembly exists in a movement state. It is a top view which shows the principal part of a tape drive (recording / reproducing apparatus) when a drawer assembly is accommodated in the inside of the reel hub of a take-up reel.

Explanation of symbols

10 Tape drive (recording and playback device)
DESCRIPTION OF SYMBOLS 15 Grabber 15a Through-hole 150 Drawer assembly 151 Guide pin LP Leader pin 18 Guide means 181 Guide groove hole 20 Take-up reel 21 Reel hub 21a Opening 22 Upper reel flange 221 Upper guide groove hole 23 Lower reel flange 60 Base 61 Ring 62 Ring shaft 63 connecting member 631 grabber arm 632 grabber shaft 64 DC motor 65 motor bracket 66-1 to 66-4 reduction gear 70 grabber state detector 71 sensor plate 711 sensor plate shielding plate 72 sensor substrate 76, 77 sensor (photo interrupter)
80 Storage Detector 82 Sensor Unit 822 Sensor Board 824 Unit Mounting Portion 826 Mounting Side Adjustment Hole 84 Unit Mounting Portion 846 Mounting Side Adjustment Hole 86 Sensor (Photointerrupter)
88 Sensor arm 881 Rotating shaft 882 Engaging arm 883 Shielding arm C Adjustment direction X Deviation

Claims (17)

A recording / reproducing apparatus comprising a take-up reel for taking up a magnetic tape accommodated in a cartridge, wherein the cartridge contains a leader pin connected to one end of the magnetic tape, and the recording / reproducing apparatus comprises: When the cartridge is loaded into the recording / reproducing apparatus, the cartridge has a grabber that is combined with the leader pin to form a drawer assembly, and the drawer assembly is housed inside a cylindrical reel hub of the take-up reel. In the recording / reproducing apparatus, the grabber is configured to form a part of a magnetic tape winding surface for winding the magnetic tape.
A sensor unit for determining whether or not the drawer assembly is housed inside the reel hub;
A unit mounting portion for mounting the sensor unit so that the mounting position of the sensor unit can be adjusted;
A recording / reproducing apparatus comprising: The sensor unit has a unit mounting portion in which a plurality of mounting side adjustment holes are formed,
The unit mounting portion is provided to face the unit mounting portion, and has a plurality of mounting side adjustment holes at positions corresponding to the plurality of mounting side adjustment holes.
The recording / reproducing apparatus according to claim 1, wherein: The plurality of mounting side adjustment holes are arranged along a predetermined adjustment direction,
The plurality of mounting side adjustment holes are arranged along the predetermined adjustment direction, and are shifted from the plurality of mounting side adjustment holes by a multiple of a predetermined deviation amount. The recording / reproducing apparatus described in 1. The sensor unit is
A sensor substrate;
A sensor disposed on the sensor substrate;
4. The recording / reproducing apparatus according to claim 1, further comprising: a sensor arm that is disposed on the sensor substrate and shields / opens the sensor. 5.   The recording / reproducing apparatus according to claim 4, wherein the sensor comprises a photo interrupter. The drawer assembly is moved to the inside of the reel hub of the take-up reel by operating means having a grabber shaft inserted into a through hole drilled in the grabber,
The sensor arm includes a rotation shaft that rotates on the sensor substrate, an engagement arm that extends from the rotation shaft and engages with the grabber shaft, and extends from the rotation shaft to the sensor. The recording / reproducing apparatus according to claim 4, further comprising: a shielding arm that shields / opens the recording medium. A storage detector for detecting whether or not the drawer assembly in which the grabber and the leader pin are combined is stored in the cylindrical reel hub of the take-up reel,
A sensor unit for determining whether or not the drawer assembly is housed inside the reel hub;
A unit mounting portion for mounting the sensor unit so that the mounting position of the sensor unit can be adjusted;
A storage detector. The sensor unit has a unit mounting portion in which a plurality of mounting side adjustment holes are formed,
The unit mounting portion is provided to face the unit mounting portion, and has a plurality of mounting side adjustment holes at positions corresponding to the plurality of mounting side adjustment holes.
The storage detector according to claim 7, wherein: The plurality of mounting side adjustment holes are arranged along a predetermined adjustment direction,
The plurality of mounting side adjustment holes are arranged along the predetermined adjustment direction, and are shifted from the plurality of mounting side adjustment holes by a multiple of a predetermined deviation amount. The storage detector described in 1. The sensor unit is
A sensor substrate;
A sensor disposed on the sensor substrate;
The storage detector according to any one of claims 7 to 9, further comprising a sensor arm arranged on the sensor substrate and configured to shield / open the sensor.   The storage detector according to claim 10, wherein the sensor comprises a photo interrupter. The drawer assembly is moved to the inside of the reel hub of the take-up reel by operating means having a grabber shaft inserted into a through hole drilled in the grabber,
The sensor arm includes a rotation shaft that rotates on the sensor substrate, an engagement arm that extends from the rotation shaft and engages with the grabber shaft, and extends from the rotation shaft to the sensor. The storage detector according to claim 9, further comprising a shielding arm that shields / opens the housing. An adjustment mechanism for adjusting a mounting position of an object,
A mounting portion for mounting the object;
A mounting portion for mounting the mounting portion, so that the mounting position of the mounting portion can be adjusted;
An adjustment mechanism characterized by comprising: The mounting portion has a plurality of mounting side adjustment holes,
The adjustment mechanism according to claim 13, wherein the attachment portion has a plurality of attachment side adjustment holes at positions corresponding to the plurality of mounting side adjustment holes. The plurality of mounting side adjustment holes are arranged along a predetermined adjustment direction,
The plurality of mounting side adjustment holes are arranged along the predetermined adjustment direction, and are shifted from the plurality of mounting side adjustment holes by a multiple of a predetermined deviation amount. The adjustment mechanism described in 1.   The adjusting mechanism according to claim 13, wherein the object is a sensor unit. The adjusting mechanism according to any one of claims 13 to 15, wherein the object is a roller shaft.

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