JP5783603B2 - Loader mechanism of magnetic tape unit - Google Patents

Description

  The present invention relates to a loader mechanism for a magnetic tape device.

2. Description of the Related Art Conventionally, for example, a magnetic tape device that performs magnetic recording and reproduction using a tape cartridge containing a magnetic tape is known (see, for example, Patent Document 1).
As shown in FIGS. 3 and 4, for example, the magnetic tape device 1 according to the prior art includes a loader mechanism 3 for transporting a tape cartridge C containing a magnetic tape (not shown) on the deck base 2, and a tape cartridge C. Projecting from the surface of the deck base 2 to connect the reel motor 4 that drives the reel R that is housed and wound with the magnetic tape, and the reel R that is housed in the tape cartridge C and the reel motor 4. And a threader mechanism 6 for pulling out the magnetic tape from the tape cartridge C and performing magnetic recording and reproduction.

  The loader mechanism 3 moves in the horizontal direction (for example, the front-rear direction with the insertion direction of the tape cartridge C into the loader tray 13 in the rear direction) by the drive unit 11 composed of, for example, a motor and a gear train, and the drive force of the drive unit 11. A feed bracket 12, a loader tray 13 into which the tape cartridge C can be inserted and removed and moved by the feed bracket 12, a pair of left loader frame 14 and right loader frame 15 that movably support the feed bracket 12, It is configured with.

  For example, the feed bracket 12 protrudes downward in the vertical direction at the horizontal feed plate 12A disposed horizontally and at the left and right ends of the horizontal feed plate 12A (that is, the left-right direction orthogonal to the front-rear direction in the horizontal direction). And a pair of left and right feed plates 12L, 12R.

Further, the feed bracket 12 includes left and right loader guide holes 12a and 12b each having a through hole into which the left and right guide pins 13a and 13b of the loader tray 13 can be inserted in the left and right feed plates 12L and 12R.
The left and right loader guide holes 12a and 12b are formed, for example, in an arc shape in which the rear end side in the front-rear direction is inclined upward in the vertical direction.

  The loader tray 13 is disposed, for example, so that the upper part is surrounded by the feed bracket 12, and is provided so as to protrude downward in the vertical direction at the horizontally disposed horizontal plate 13A and the left and right ends of the horizontal plate 13A. And a pair of left and right side plates 13L, 13R, and left and right projecting plates 13B, 13C projecting in directions close to each other at the lower ends of the left and right side plates 13L, 13R.

The left side plate 13L includes a left guide pin 13a that protrudes leftward, and the right side plate 13R includes a right guide pin 13b that protrudes rightward.
The left and right protruding plates 13B and 13C are provided with fixing members 13c and 13d for fixing the tape cartridge C inserted into the loader tray 13 so as to be surrounded by the plates.

The pair of left loader frame 14 and right loader frame 15 are fixed to the deck base 2 so as to protrude upward in the vertical direction from the surface of the deck base 2 arranged horizontally, for example. It arrange | positions so that feed plate 12L, 12R may be inserted | pinched from the both sides of the left-right direction.
The left loader frame 14 and the right loader frame 15 include left and right guide holes 14a and 15a each having a through hole into which the left and right guide pins 13a and 13b of the loader tray 13 can be inserted.

That is, the left and right guide pins 13a and 13b of the loader tray 13 are sequentially connected to the left and right loader guide holes 12a and 12b of the feed bracket 12, the left and right guide holes 14a and 15a of the left loader frame 14 and the right loader frame 15, respectively. Has been inserted.
The left and right guide holes 14a and 15a are formed in, for example, an L shape that extends in the front-rear direction and bends downward in the vertical direction at the rear end.

  The operation of transporting the tape cartridge C on the deck base 2 in the magnetic tape device 1 according to the prior art will be described below.

  First, when the tape cartridge C is mounted and fixed to the loader tray 13 disposed at a position where the tape cartridge C can be inserted and removed, a driving force is transmitted from the drive unit 11 to the feed bracket 12, and the feed bracket 12 It moves toward the rear in the front-rear direction (that is, the insertion direction of the tape cartridge C).

  At this time, the left and right guide pins 13a and 13b of the loader tray 13 are fixed to the left and right loader guide holes 12a and 12b of the feed bracket 12 at a position on the rear end side. The left and right guide holes 14a, 15a of the loader frame 15 move from the front end side in the front-rear direction toward the position on the rear end side.

  As a result, the loader tray 13 is moved back and forth in the front-rear direction together with the feed bracket 12 until the left and right guide pins 13a and 13b reach the rear ends of the left and right guide holes 14a and 15a of the left loader frame 14 and the right loader frame 15. In other words, the tape cartridge C moves in the direction of insertion).

  When the left and right guide pins 13a, 13b of the loader tray 13 reach the rear ends of the left and right guide holes 14a, 15a of the left loader frame 14 and the right loader frame 15, the left and right loader guide holes 12a, 12b moves from the position on the rear end side to the position on the front end side and gradually descends downward in the vertical direction.

At this time, the left and right guide pins 13 a and 13 b of the loader tray 13 move downward in the vertical direction with respect to the pair of left and right guide holes 14 a and 15 a of the right loader frame 15.
As a result, the feed bracket 12 moves rearward in the front-rear direction (that is, the insertion direction of the tape cartridge C), whereas the loader tray 13 moves downward in the vertical direction.

The left and right guide pins 13a and 13b of the loader tray 13 reach the positions on the front end side with respect to the left and right loader guide holes 12a and 12b of the feed bracket 12, and a pair of left loader frame 14 and right loader frame When the left and right guide holes 14a and 15a reach the lower end position, the feed bracket 12 and the loader tray 13 stop moving.
The reel R housed in the tape cartridge C and the reel motor 4 provided on the deck base 2 are connected by a clutch 5, and the reel R can be driven to rotate by the reel motor 4.

Japanese Patent No. 4328740

By the way, in the magnetic tape device 1 according to the above-described prior art, the feed bracket 12 is configured to move in the front-rear direction using the upper ends of the plate-like left loader frame 14 and the right loader frame 15 as guides.
However, for example, ensuring the desired dimensional accuracy and the strength to withstand the sliding load required to allow the upper ends of the plate-like left loader frame 14 and right loader frame 15 to be bent to function as guides. The problem that is difficult.
Further, when such a problem occurs, for example, when the sliding load is reduced by using a bearing or a sleeve, the configuration of the loader mechanism 3 is complicated and the cost required for the device configuration increases. Arise.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a loader mechanism for a magnetic tape device that can prevent the structure from becoming complicated while ensuring a desired strength.

  In order to solve the above problems and achieve the object, the loader mechanism of the magnetic tape device according to the present invention is a loader mechanism of a magnetic tape device that transports a tape cartridge in which a reel on which a magnetic tape is wound is accommodated. A motor fixed to the board, a clutch connected to the motor and projecting from the surface of the board, connectable to the reel and capable of transmitting the driving force of the motor to the reel, and the tape cartridge. A loader member capable of being held inside and movable to a position where the tape cartridge can be inserted and removed; and a position where the reel is connected to the clutch and can be rotated by the motor; and the clutch on the substrate Can move in a direction approaching or separating from the clutch and moving in a direction approaching the clutch Comprising a feeder member for the over da member is moved to the rotary drivable position from the insertion and removal position capable were can be inserted at least a part of the feeder member between said motor and said clutch.

  According to the loader mechanism of the magnetic tape device of the present invention, when at least a part of the feeder member can be inserted between the motor and the clutch, the feeder member cannot be inserted between the motor and the clutch. In comparison, the movable distance of the feeder member movable in the direction of approaching or separating from the clutch on the substrate can be increased, and the feeder is prevented from becoming complicated while ensuring a desired strength. A desired movable distance of the member can be easily ensured.

It is a lineblock diagram of a loader mechanism of a magnetic tape device concerning an embodiment of the invention, and is an exploded perspective view showing a loader mechanism. It is a figure showing typically a section of a deck base of a magnetic tape device concerning an embodiment of the invention. It is a block diagram of the magnetic tape apparatus which concerns on an example of a prior art, Comprising: It is a perspective view which decomposes | disassembles and shows a loader mechanism. It is a figure which shows typically the cross section of the deck base of the magnetic tape apparatus which concerns on an example of a prior art.

Hereinafter, a loader mechanism of a magnetic tape device according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, for example, the magnetic tape device 20 according to the present embodiment includes a loader mechanism 22 for transporting a tape cartridge C containing a magnetic tape (not shown) on the deck base 21, and the tape cartridge C On the surface 21A of the deck base 21 in order to connect the reel motor 23 that drives the reel R accommodated in the magnetic tape and the reel R accommodated in the tape cartridge C and the reel motor 23. And a threader mechanism 25 that pulls out the magnetic tape from the tape cartridge C and performs magnetic recording and reproduction.

  The loader mechanism 22 is moved in a horizontal direction (for example, a front-rear direction in which the insertion direction of the tape cartridge C with respect to the loader tray 33 is rearward) by a driving unit 31 composed of, for example, a motor and a gear train, and the driving force of the driving unit 31. A feed bracket 32, a loader tray 33 into which the tape cartridge C can be inserted and removed and moved by the feed bracket 32, a pair of left loader frame 34 and right loader frame 35 that movably support the feed bracket 32, It is configured with.

  For example, the feed bracket 32 protrudes upward in the vertical direction at the horizontal feed plate 32A arranged horizontally and at the left and right ends of the horizontal feed plate 32A (that is, the left-right direction orthogonal to the front-rear direction in the horizontal direction). And a pair of left and right feed plates 32L, 32R.

  The left and right feed plates 32L and 32R are arranged so as to sandwich the loader tray 33 from both sides in the left-right direction (that is, the direction orthogonal to the front-rear direction which is the moving direction of the feed bracket 32 in the horizontal direction).

The left and right feed plates 32L and 32R are provided with left and right loader guide holes 32a and 32b each having a through hole into which the left and right guide pins 33a and 33b of the loader tray 33 can be inserted.
The left and right loader guide holes 32a and 32b are formed in, for example, an arc shape in which the rear end side in the front-rear direction is inclined upward in the vertical direction.

Further, the horizontal feed plate 32 connecting the left and right feed plates 32L and 32R has a plurality of horizontal guide holes 32c formed of through holes into which a plurality of feed plate guide pins 21a protruding from the surface 21A of the deck base 21 can be inserted. It has.
The horizontal guide hole 32c is formed, for example, so as to extend in the front-rear direction.

  The loader tray 33 is disposed, for example, so that the lower portion is surrounded by the feed bracket 32, and, for example, the horizontal plate 33A disposed horizontally and the left and right ends of the horizontal plate 33A project downward in the vertical direction. A pair of left and right side plates 33L and 33R, and left and right projecting plates 33B and 33C projecting in the directions close to each other at the lower ends of the left and right side plates 33L and 33R.

The left side plate 33L includes a left guide pin 33a that protrudes leftward, and the right side plate 33R includes a right guide pin 33b that protrudes rightward.
The left and right protruding plates 33B and 33C include a fixing member (not shown) for fixing the tape cartridge C inserted into the loader tray 33 so as to be surrounded by the plates.

The pair of left loader frame 34 and right loader frame 35 are fixed to the deck base 21 so as to protrude vertically upward from the surface 21A of the deck base 21 arranged horizontally, for example. The feed plates 32L, 32R are arranged so as to be sandwiched from both sides in the left-right direction.
The left loader frame 34 and the right loader frame 35 include left and right guide holes 34a and 35a each having a through hole into which the left and right guide pins 33a and 33b of the loader tray 33 can be inserted.

That is, the left and right guide pins 33a and 33b of the loader tray 33 are sequentially inserted into the left and right guide holes 32a and 32b of the feed bracket 32 and the left and right guide holes 34a and 35a of the left loader frame 34 and the right loader frame 35, respectively. Has been inserted.
The left and right guide holes 34a and 35a are formed in, for example, an L shape that extends in the front-rear direction and bends downward in the vertical direction at the rear end.

  For example, as shown in FIG. 2, the rotation shaft of the reel motor 23 fixed to the deck base 21 and the rotation shaft of the clutch 24 protruding from the surface 21 </ b> A of the deck base 21 are smaller in diameter than the reel motor 23 and the clutch 24. And it is connected by a connecting shaft 41 having a predetermined axial length.

Between the reel motor 23 and the clutch 24, there is an insertion region 42 at a predetermined interval in which at least a part of the feed bracket 32, for example, the rear part of the horizontal feed plate 32A can be inserted according to the axial length of the connecting shaft 41. Is provided.
In addition, as for this connection axis | shaft 41, the site | part which cross | intersects the plane where 32 A of horizontal feed plates move may be diameter-reduced compared with another site | part.

  The magnetic tape device 20 according to the present embodiment has the above-described configuration. Next, the operation of the loader mechanism 22 of the magnetic tape device 20, that is, the operation of transporting the tape cartridge C on the deck base 21 will be described.

First, when the tape cartridge C is mounted and fixed to the loader tray 33 arranged at a position where the tape cartridge C can be inserted and removed (for example, the position of the front end of the magnetic tape device 20), the feed bracket is moved from the drive unit 31. When the driving force is transmitted to the feed bracket 32, the feed plate guide pin 21a is guided in the horizontal guide hole 32c while the feed plate guide pin 21a is guided rearward in the front-rear direction (that is, in the insertion direction of the tape cartridge C, Move toward (closer direction).
At this time, the horizontal feed plate 32 </ b> A of the feed bracket 32 moves so as to be inserted into the insertion region 42 provided between the reel motor 23 and the clutch 24.

  At this time, the left and right guide pins 33a and 33b of the loader tray 33 are fixed to the left and right loader guide holes 32a and 32b of the feed bracket 32 at a position on the rear end side, and a pair of left loader frames 34 are provided. The right and left guide holes 34a, 35a of the right loader frame 35 move from the front end side in the front-rear direction toward the rear end side.

  As a result, the loader tray 33 is moved back and forth in the front-rear direction together with the feed bracket 32 until the left and right guide pins 33a and 33b reach the rear ends of the left and right guide holes 34a and 35a of the left loader frame 34 and the right loader frame 35. In other words, the tape cartridge C moves in the direction of insertion).

  When the left and right guide pins 33a and 33b of the loader tray 33 reach the rear ends of the left and right guide holes 34a and 35a of the left loader frame 34 and the right loader frame 35, the rotation of the reel R accommodated in the tape cartridge C is performed. The shaft and the reel motor 23 provided on the deck base 21 and the rotating shaft of the clutch 24 are arranged coaxially.

  The left and right guide pins 33a and 33b of the loader tray 33 are directed from the position on the rear end side to the position on the front end side and downward in the vertical direction with respect to the left and right loader guide holes 32a and 32b of the feed bracket 32. Move so that it descends gradually.

At this time, the left and right guide pins 33a and 33b of the loader tray 33 move downward in the vertical direction with respect to the left and right guide holes 34a and 35a of the pair of left loader frame 34 and right loader frame 35.
As a result, the feed bracket 32 moves rearward in the front-rear direction (that is, the insertion direction of the tape cartridge C), whereas the loader tray 33 moves downward in the vertical direction.

  The left and right guide pins 33a and 33b of the loader tray 33 reach the positions on the front end side with respect to the left and right loader guide holes 32a and 32b of the feed bracket 32, and a pair of left loader frame 34 and right loader frame When the left and right guide holes 34a and 35a reach the lower end position, the feed bracket 32 and the loader tray 33 stop moving.

At this time, in particular, the horizontal feed plate 32A of the feed bracket 32 is in a state of being inserted into an insertion region 42 provided between the reel motor 23 and the clutch 24.
In the loader tray 33, the reel R accommodated in the tape cartridge C and the reel motor 23 provided on the deck base 21 are connected by the clutch 24, and the reel R can be driven to rotate by the reel motor 23. Be placed.

  As described above, according to the loader mechanism 22 of the magnetic tape device 20 according to the present embodiment, since the horizontal feed plate 32A can be inserted between the reel motor 23 and the clutch 24, at least one of the feed brackets 32 is provided. Compared with the case where the portion cannot be inserted between the reel motor 23 and the clutch 24, the movable distance of the feed bracket 32 that can move in the direction close to or away from the clutch 24 on the deck base 21 is increased. It is possible to prevent the complication of the configuration while securing the desired strength, and to easily secure the desired movable distance of the feed bracket 32.

  In addition, since the horizontal feed plate 32 is provided with a horizontal guide hole 32c for guiding the feed plate guide pin 21a of the deck base 21, the feed bracket 32 is fed in a place other than the case where the feed bracket 32 is guided at a place other than the deck base 21. It is possible to prevent the configuration from becoming complicated while ensuring the desired strength of the bracket 32.

  In the above-described embodiment, the feed plate guide pin 21a provided in the deck base 21 is guided by the horizontal guide hole 32c provided in the horizontal feed plate 32 of the feed bracket 32. However, the present invention is not limited to this. For example, a guide pin that protrudes vertically downward from the horizontal feed plate 32 of the feed bracket 32 may be provided, and a guide groove into which the guide pin is inserted and guided may be provided on the surface 21 </ b> A of the deck base 21.

  In the embodiment described above, at least a part of the feed bracket 32, for example, the rear part of the horizontal feed plate 32A, can be inserted according to the shape of the connecting shaft 41 between the reel motor 23 and the clutch 24. However, the present invention is not limited to this. For example, by providing the clutch 24 with a predetermined shape (for example, reduced diameter), at least a part of the feed bracket 32, for example, the rear part of the horizontal feed plate 32A. An insertion region 42 having a predetermined interval may be provided.

20 Magnetic tape device 21 Deck base 21a Feed plate guide pin 22 Loader mechanism 23 Reel motor 24 Clutch 25 Threader mechanism 31 Drive unit 32 Feed bracket 32A Horizontal feed plates 32L and 32R Feed plates 32a and 32b Loader guide holes 32c Horizontal guide holes 33 Loader Tray 34 Left loader frame 35 Right loader frame 41 Connecting shaft 42 Insertion area

Claims (4)

A loader mechanism for a magnetic tape device that transports a tape cartridge that contains a reel on which a magnetic tape is wound.
A motor fixed to the substrate;
A clutch coupled to the motor and protruding from the surface of the substrate, connectable to the reel and capable of transmitting the driving force of the motor to the reel;
A loader member capable of holding the tape cartridge therein and movable between a position where the tape cartridge can be inserted and removed and a position where the reel is connected to the clutch and can be rotationally driven by the motor;
The loader member can be moved in the direction approaching or separating from the clutch on the substrate, and the loader member can be rotationally driven from the removable position by moving in the direction approaching the clutch. A feeder member to be moved to a position;
With
A loader mechanism for a magnetic tape device, wherein at least a part of the feeder member can be inserted between the motor and the clutch. The connecting shaft that connects the clutch or the motor and the clutch has a reduced diameter at a portion that intersects a plane on which at least a part of the feeder member moves. Loader mechanism for magnetic tape unit. 3. A loader mechanism for a magnetic tape device according to claim 1, wherein a guide member for guiding the movement of the feeder member on the substrate is provided on the substrate and the feeder member. The feeder member is
A pair of loader support members that support the loader member so as to be relatively movable so as to be sandwiched from both sides in a direction orthogonal to the moving direction of the feeder member;
A connection member for connecting the pair of loader support members,
4. The loader mechanism for a magnetic tape device according to claim 1, wherein at least a part of the connection member can be inserted between the motor and the clutch. 5.

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