Tape lifter mechanism and magnetic tape device

Abstract

This invention provides stable operation of a tape lifter mechanism of a magnetic tape device. The tape lifter mechanism includes a lifter block that comes into contact with a threaded magnetic tape, and has two guide pins. The guide pins support the lifter block from both ends. The lifter block has a lifter roller for reducing dynamic friction between the magnetic tape and the lifter block when winding the magnetic tape forward or backward.

Description

Tape lifter mechanism and magnetic tape device

[0001] The present disclosure relates to a tape lifter mechanism and a magnetic tape device, and more particularly to a tape lifter mechanism and a magnetic tape device for winding or rewinding a magnetic tape.

[0002] Single-reel cartridges (hereinafter referred to as cartridges) are used as magnetic recording media (or tape media). The magnetic tape is stored inside the cartridge wound around a cartridge reel. One end of the magnetic tape is fixed to the cartridge body, and a leader pin is attached to the other end of the magnetic tape. When the cartridge is inserted into a magnetic tape device, the cartridge moves to a certain position within the magnetic tape device (loading). Then, the leader pin attached to the end of the magnetic tape engages with the leader block and moves along a predetermined path, thereby winding the magnetic tape onto the take-up reel of the magnetic tape device (threading). The magnetic tape can then be run within the magnetic tape device.

[0003] In recent years, as the data capacity per unit recording medium has continued to increase, the frequency and speed of winding or rewinding magnetic tape to read or write data on the magnetic tape has become higher than ever before. As a result, wear on the magnetic tape has become more noticeable. To reduce this wear, tape lifter mechanisms have been introduced into magnetic tape devices to prevent the magnetic tape from coming into contact with the magnetic head when the magnetic tape is wound or rewound (see, for example, Patent Document 1).

[0004] In the related technology described in Patent Document 1, a tape lifter mechanism has a function of pulling the magnetic tape away from its travel path when it is stopped, thereby preventing contact between the magnetic head and the magnetic tape. The magnetic head constantly monitors the servo tracks on the magnetic tape to identify any data storage location on the magnetic tape.

[0005] When the tape lifter mechanism causes the magnetic head to lose contact with the magnetic tape, the magnetic head is unable to read the servo tracks and is unable to determine where the data is stored. Therefore, in related technology, a servo track search is performed on the magnetic tape when contact between the magnetic tape and the magnetic head is restored after the tape lifter mechanism has operated.

[0006] JP 2016-95888 A

[0007] The lifter block of the tape lifter mechanism comes into direct contact with the magnetic tape to lift it. In related technologies, the lifter block has a cantilevered support structure, so tape tension can cause the lifter block to lose its position, which can increase dynamic friction in the mechanism and potentially induce wear on the parts.

[0008] In addition, in the related art, when the tape lifter mechanism is operating, the dynamic friction between the lifter block and the magnetic tape is relatively large, so that the extremely thin film-like magnetic tape tends to adhere to the surface of the lifter block, which can cause the magnetic tape to unintentionally follow the movement of the lifter block, resulting in a misalignment between the longitudinal position of the magnetic tape and the position of the magnetic head before and after the tape lifter mechanism is operating.

[0009] This causes a problem in that after the tape lifter mechanism operates, it takes a long time for the magnetic head to resume reading and writing data on the magnetic tape.

[0010] The present disclosure has been made in view of the above-mentioned problems, and aims to provide a stable operation of a tape lifter mechanism of a magnetic tape device.

[0011] A tape lifter mechanism according to one aspect of the present disclosure includes a lifter block that contacts a threaded magnetic tape and has two guide pins that support the lifter block from both ends, and the lifter block has a lifter roller for reducing dynamic friction between the magnetic tape and the lifter block when the magnetic tape is wound or rewound.

[0012] A magnetic tape device according to one aspect of the present disclosure comprises a take-up reel for winding up a magnetic tape stored in a cartridge, a magnetic head for reading and writing data stored on the magnetic tape, and a tape lifter mechanism, wherein the tape lifter mechanism comprises a lifter block that contacts the magnetic tape inserted into the cartridge and has two guide pins that support the lifter block from both ends, and the lifter block has a lifter roller for reducing dynamic friction between the magnetic tape and the lifter block when the magnetic tape is wound or rewound.

[0013] According to one aspect of the present disclosure, it is possible to provide stable operation of a tape lifter mechanism of a magnetic tape device.

[0014] 1 is a perspective view showing the appearance of a magnetic tape device according to an embodiment. FIG. 2 is a perspective view showing the appearance of a magnetic tape device according to an embodiment. FIG. 3 is a view showing the internal structure of a magnetic tape device according to an embodiment. FIG. 4 is a view showing the configuration of a tape lifter mechanism according to an embodiment. FIG. 5 is a view showing the configuration of a part (lifter block) of a tape lifter mechanism according to an embodiment. FIG. 6 is a view showing the configuration of a part (lifter block) of a tape lifter mechanism according to an embodiment. FIG. 7 is a view showing the state of a tape lifter mechanism before operation. FIG. 8 is a view showing the state of a tape lifter mechanism in operation. FIG. 9 is a view showing the state of a tape lifter mechanism in operation. FIG. 10 is a first view showing in stages how a lifter block moves when a tape lifter mechanism according to an embodiment is operating. FIG. 11 is a second view showing in stages how a lifter block moves when a tape lifter mechanism according to an embodiment is operating. FIG. 12 is a third view showing in stages how a lifter block moves when a tape lifter mechanism according to an embodiment is operating. FIG. 13 is a fourth view showing in stages how a lifter block moves when a tape lifter mechanism according to an embodiment is operating. FIG. 14 is a view showing an example of a hardware configuration for realizing all or part of the functions of a magnetic tape device according to an embodiment.

[0015] Several embodiments of the present disclosure will be described with reference to the drawings.

[0016] First Embodiment A second embodiment of the present disclosure will be described with reference to FIGS. 1 to 3. FIG.

[0017] (Configuration of the Magnetic Tape Device 100) The configuration of the magnetic tape device 100 according to the first embodiment will be described with reference to FIGS. 1 to 3. FIG.

[0018] 1 is a perspective view showing the structure of a magnetic tape device 100. The magnetic tape device 100 according to the first embodiment includes a take-up reel 103 for winding up a magnetic tape 202 housed in a cartridge 200, a magnetic head 101 for reading and writing data stored on the magnetic tape 202, and a tape lifter mechanism. A first shaft A301 constituting the tape lifter mechanism is fixed to a plate 300. A lifter swing arm 302 constituting the tape lifter mechanism is rotatably attached to the first shaft A301 and is swingable on the surface of the plate 300. A lifter arm 304 is connected to the tip of the lifter swing arm 302, and the lifter arm 304 slides on the surface of the plate 300 in conjunction with the swing of the lifter swing arm 302.

[0019] 2 is a perspective view showing the structure of the magnetic tape device 100. As shown in FIG. 2, a first guide pin A306 attached to the lifter arm 304 engages with a first guide groove A308 on the lifter cover 307 and slides along it. The lifter cover 307 is fixed to the plate 300 so as to cover the lifter swing arm 302 and the lifter arm 304. The lifter swing arm 302 and the lifter arm 304 slide on the plate 300. During this sliding movement, the lifter cover 307 presses the lifter swing arm 302 and the lifter arm 304 from above in the figure. Furthermore, the lifter cover 307 serves to restrain the engagement between the hole A303 and the second shaft B305, the engagement between the first guide pin A306 and the first guide groove A308, and the engagement between the second guide pin B310 and the second guide groove B314.

[0020] 3 shows the running path of the magnetic tape 202 inside the magnetic tape device 100 (FIG. 1). As shown in FIG. 3, the magnetic tape 202 is pulled out from the cartridge reel 201 inside the cartridge 200 and taken up onto the take-up reel 103 via a guide roller 102. A magnetic head 101 is disposed midway along the running path of the magnetic tape 202. The magnetic head 101 comes into contact with the magnetic tape 202 to read and write data stored on the magnetic tape 202.

[0021] The magnetic tape 202 runs along a predetermined path within the magnetic tape device 100. While the magnetic tape 202 runs, the magnetic head 101 comes into contact with the magnetic tape 202 and can read and write data at any position on the magnetic tape 202. The magnetic tape device 100 controls the rotation of the cartridge reel 201 and the take-up reel 103 by motors so that an appropriate tension (hereinafter referred to as tape tension) is applied to the magnetic tape 202 in the longitudinal direction so that the mutual contact between the magnetic head 101 and the magnetic tape 202 does not loosen.

[0022] As shown in Figure 3, the tape lifter mechanism includes a lifter block 309 that comes into contact with the magnetic tape 202 threaded into the cartridge 200 (Figure 1). Guide pins (not shown) are provided at both ends of the lifter block 309. The guide pins provided at both ends of the lifter block 309 support the lifter block 309 from both ends. The lifter block 309 has lifter rollers (not shown) for reducing dynamic friction between the magnetic tape 202 and the lifter block 309 when the magnetic tape 202 is wound or rewound.

[0023] An example of the structure and operation of the tape lifter mechanism will be described in detail in a second embodiment described later.

[0024] (Effects of this embodiment) According to the configuration of this embodiment, the magnetic tape device 100 includes a take-up reel 103 for winding up the magnetic tape 202 housed in the cartridge 200, a magnetic head 101 for reading and writing data stored on the magnetic tape 202, and a tape lifter mechanism, and the tape lifter mechanism includes a lifter block 309 that comes into contact with the magnetic tape 202 threaded into the cartridge 200 and has two guide pins that support the lifter block 309 from both ends. The lifter block 309 has lifter rollers for reducing dynamic friction between the magnetic tape 202 and the lifter block 309 when the magnetic tape 202 is wound or rewound.

[0025] This improves the reliability and durability of the operation of the tape lifter mechanism of the magnetic tape device 100.

[0026] 4 to 11D, a second embodiment of the present disclosure will be described. In the second embodiment, an example of the configuration of a tape lifter mechanism included in the magnetic tape device 100 (FIG. 1) described in the first embodiment will be described.

[0027] (Configuration of Tape Lifter Mechanism 10) The configuration of the tape lifter mechanism 10 provided in the magnetic tape device 100 (FIG. 1) will be described with reference to FIGS.

[0028] As shown in FIG. 4, the tape lifter mechanism is made up of a lifter swing arm 302 , a lifter arm 304 , a first guide pin A 306 , a lifter block 309 , a second guide pin B 310 , and a lifter roller 312 .

[0029] 5, the lifter swing arm 302 has a hole A303 at its tip. The hole A303 of the lifter swing arm 302 rotatably engages with a second shaft B305 attached to the lifter arm 304. A lifter block 309 is attached to the tip of the lifter arm 304.

[0030] As shown in FIG. 6, lifter rollers 312 are rotatably attached to the lifter block 309 via a plurality of third shafts C313.

[0031] As shown in Figure 7, a second guide pin B310 is attached to the bottom surface of the lifter block 309. The second guide pin B310 engages with a second guide groove B314 (Figure 8). A head brush 311 is attached to the surface of the lifter block 309 opposite to the surface on which the lifter roller 312 is attached.

[0032] (Operation of Tape Lifter Mechanism 10) Figures 8 to 10 are perspective views of the tape lifter mechanism provided in the magnetic tape device 100. Figure 8 shows the state of the lifter swing arm 302 before the tape lifter mechanism 10 operates. Figures 9 and 10 show the state of the lifter swing arm 302 when the tape lifter mechanism 10 operates. Note that the magnetic tape 202 is not shown in Figure 9.

[0033] As shown in FIG. 8, before the tape lifter mechanism 10 operates, the magnetic tape 202 is in contact with the magnetic head 101, while the lifter roller 312 on the lifter block 309 and the magnetic tape 202 are separated from each other.

[0034] 9, when the tape lifter mechanism 10 operates, the lifter swing arm 302 swings, causing the lifter block 309 to move to the front of the magnetic head 101. The lifter block 309 moves between the magnetic head 101 and the magnetic tape 202, thereby preventing contact between the magnetic tape 202 and the magnetic head 101.

[0035] 10, a second guide pin B310 attached to the bottom surface of the lifter block 309 moves along a second guide groove B314. The magnetic tape 202 is in contact with a lifter roller 312 on the lifter block 309, and the lifter roller 312 rotates in accordance with the running of the magnetic tape 202. At this time, the head brush 311 comes into contact with the magnetic head 101, thereby cleaning the magnetic head surface.

[0036] (Operation of Lifter Block 309) FIGS. 11A to 11D show stepwise movements of the lifter block 309 during operation of the tape lifter mechanism 10 described above.

[0037] 11A, when the lifter swing arm 302 swings around the first shaft A301 by means not shown, the lifter arm 304 connected thereto moves along the second guide groove B314. As shown in FIG. 11B, in conjunction with the lifter arm 304, the lifter block 309 attached to the tip of the lifter arm 304 and the second guide pin B310 attached to the bottom surface of the lifter block 309 move along the second guide groove B314.

[0038] The movement path of the lifter block 309, that is, the locus of the second guide groove B314, intersects with the running path of the magnetic tape 202.

[0039] 11C , when lifter swing arm 302 swings to move lifter block 309, lifter roller 312 on lifter block 309 comes into contact with magnetic tape 202 at a position where the movement path of lifter block 309 intersects with the running path of magnetic tape 202. Lifter roller 312 lifts magnetic tape 202 and separates it from the running path.

[0040] As shown in Figure 11D, as the lifter swing arm 302 continues to swing, the lifter block 309 eventually moves to the front of the magnetic head 101 and enters between the magnetic head 101 and the magnetic tape 202, preventing contact between the two (tape lift state).

[0041] During this time, the lifter roller 312 is in contact with the magnetic tape 202, and the lifter roller 312 rotates following the movement of the lifter block 309, thereby relatively letting the magnetic tape 202 pass.

[0042] Even after the lifter block 309 has moved to the front of the magnetic head 101, the lifter roller 312 remains in contact with the magnetic tape 202 and rotates in the forward or reverse direction depending on the running direction of the magnetic tape 202 when the magnetic tape 202 is being wound or rewound. When the magnetic tape 202 is stopped from running, the reverse process to the above is carried out, i.e., the lifter swing arm 302 swings in the direction opposite to the forward movement, thereby realizing a process for releasing the tape lift state (i.e., restoring contact between the magnetic head 101 and the magnetic tape 202). Note that in the tape lift state, a head brush 311 attached to the lifter block 309 comes into contact with the magnetic head 101, and the magnetic head 101 is moved up and down by means not shown, thereby cleaning the magnetic head surface.

[0043] (Modification) In the first embodiment, the lifter roller 312 is built into the lifter block 309 fixed to the lifter arm 304 .

[0044] In one modified example, the lifter block 309 may be replaced with a single cylindrical roller that is rotatable relative to the lifter arm 304. In this case, a fixed shaft at the center of rotation of the roller can take the role of the second guide pin B310 that engages with the second guide groove B314.

[0045] (Effects of this embodiment) According to the configuration of this embodiment, the tape lifter mechanism 10 includes a lifter block 309 that comes into contact with the magnetic tape 202 threaded into the cartridge 200, and has two guide pins that support the lifter block 309 from both ends. The lifter block 309 has lifter rollers 312 that reduce dynamic friction between the magnetic tape 202 and the lifter block 309 when the magnetic tape 202 is being wound or rewound.

[0046] While the lifter block 309 is moving, the second guide pin B310 is engaged with the second guide groove B314, and together with the upper lifter arm 304, serves as a point of action for the reaction force against the tape tension, thereby preventing the lifter block 309 from tipping over. This reduces twisting of the lifter arm 304 and the resulting operating load on the tape lifter mechanism 10, thereby improving operational durability.

[0047] Furthermore, according to the configuration of this embodiment, by providing a rotatable lifter roller 312 on the surface of the lifter block 309 that contacts the magnetic tape 202, the contact area between the magnetic tape 202 and the lifter block 309 is reduced, and dynamic friction between the magnetic tape 202 and the lifter block 309 is also reduced. This reduces the likelihood of the magnetic tape 202 adhering to the lifter block 309, as occurs in related technologies. Furthermore, it reduces the relative positional deviation between the magnetic tape 202 and the magnetic head 101 before and after the tape lifter mechanism 10 operates. The effect of suppressing tilt of the lifter block 309 is equivalent to the effect of suppressing tilt of the head brush 311 attached to the lifter block 309. In other words, it is expected that the contact between the magnetic tape 202 and the magnetic head 101 of the head brush 311 during tape lifting will be more stable than in related technologies.

[0048] As described above, the configuration of this embodiment can provide stable operation of the tape lifter mechanism 10 of the magnetic tape device 100.

[0049] Some or all of the components of the magnetic tape device 100 described in the first embodiment are realized by, for example, an information processing device as shown in Fig. 12. Fig. 12 is a block diagram showing an example of the hardware configuration of the information processing device.

[0050] 12 , the computer 110 includes a CPU (Central Processing Unit) 111, a main memory 112, a storage device 113, an input interface 114, a display controller 115, a data reader / writer 116, and a communication interface 117. These components are connected to each other via a bus 121 so as to be able to communicate data with each other. Note that the computer 110 may include a GPU (Graphics Processing Unit) or an FPGA (Field-Programmable Gate Array) in addition to or instead of the CPU 111.

[0051] The CPU 111 loads the program (code) of this embodiment stored in the storage device 113 into the main memory 112 and executes it in a predetermined order to perform various calculations. The main memory 112 is typically a volatile storage device such as a DRAM (Dynamic Random Access Memory). The program of this embodiment is provided in a state stored in a computer-readable recording medium 120. The program of this embodiment may be distributed over the Internet connected via the communication interface 117.

[0052] Specific examples of the storage device 113 include a hard disk drive and a semiconductor storage device such as a flash memory. The input interface 114 mediates data transmission between the CPU 111 and input devices 118 such as a keyboard and a mouse. The display controller 115 is connected to a display device 119 and controls the display on the display device 119.

[0053] The data reader / writer 116 mediates data transmission between the CPU 111 and the recording medium 120, reads programs from the recording medium 120, and writes processing results from the computer 110 to the recording medium 120. The communication interface 117 mediates data transmission between the CPU 111 and other computers.

[0054] Specific examples of the recording medium 120 include general-purpose semiconductor storage devices such as CF (Compact Flash (registered trademark)) and SD (Secure Digital), magnetic recording media such as flexible disks, or optical recording media such as CD-ROMs (Compact Disk Read Only Memory).

[0055] (Supplementary Notes) A ​​part or all of the above-described embodiments can be described as, but are not limited to, the following supplementary notes.

[0056] (Appendix 1) A tape lifter mechanism comprising a lifter block that comes into contact with a threaded magnetic tape, the lifter block having two guide pins that support the lifter block from both ends, and the lifter block having a lifter roller for reducing dynamic friction between the magnetic tape and the lifter block when the magnetic tape is wound or rewound.

[0057] (Appendix 2) The tape lifter mechanism according to Appendix 1, further comprising a lifter cover having a first guide groove, wherein a first guide pin provided at one end of the lifter cover slides along the first guide groove.

[0058] (Appendix 3) A tape lifter mechanism according to appendix 2, comprising: a plate to which the lifter cover is fixed; and a lifter swing arm and a lifter arm that slide on the plate, wherein the lifter cover is fixed to the plate so as to cover the lifter swing arm and the lifter arm.

[0059] (Appendix 4) The tape lifter mechanism described in Appendix 1 is characterized in that a head brush is attached to the lifter block, and when the lifter roller rotates in accordance with the running of the magnetic tape, the head brush comes into contact with a magnetic head for reading and writing data stored on the magnetic tape, thereby cleaning the magnetic head.

[0060] (Appendix 5) The tape lifter mechanism of Appendix 1, further comprising a lifter block having a second guide groove, wherein a second guide pin provided at the other end of the lifter block slides along the second guide groove.

[0061] (Supplementary Note 6) The tape lifter mechanism according to Supplementary Note 1, wherein the lifter roller is rotatably attached to the lifter block via a shaft.

[0062] (Appendix 7) The tape lifter mechanism according to Appendix 3, wherein the lifter arm is connected to the lifter swing arm at a tip end of the lifter swing arm and slides on the plate in conjunction with the swing of the lifter swing arm.

[0063] (Appendix 8) The tape lifter mechanism of appendix 1, wherein the lifter roller is rotatably attached to the lifter block via a plurality of shafts.

[0064] (Appendix 9) The tape lifter mechanism described in Appendix 3, characterized in that, as the lifter swing arm swings, the lifter block enters between the magnetic tape and a magnetic head for reading and writing data stored on the magnetic tape, and the lifter block prevents contact between the magnetic tape and the magnetic head.

[0065] (Appendix 10) A magnetic tape device comprising: a take-up reel for winding up a magnetic tape stored in a cartridge; a magnetic head for reading and writing data stored on the magnetic tape; and a tape lifter mechanism, wherein the tape lifter mechanism comprises a lifter block that comes into contact with the magnetic tape inserted in the cartridge and has two guide pins that support the lifter block from both ends, and the lifter block has a lifter roller for reducing dynamic friction between the magnetic tape and the lifter block when the magnetic tape is wound or rewound.

[0066] (Appendix 11) The magnetic tape device according to appendix 10, further comprising a lifter cover having a first guide groove, wherein a first guide pin provided at one end of the lifter cover slides along the first guide groove.

[0067] (Appendix 12) A magnetic tape device according to appendix 11, comprising: a plate to which the lifter cover is fixed; and a lifter swing arm and a lifter arm that slide on the plate, wherein the lifter cover is fixed to the plate so as to cover the lifter swing arm and the lifter arm.

[0068] (Appendix 13) The magnetic tape device described in Appendix 10 is characterized in that a head brush is attached to the lifter block, and when the lifter roller rotates in accordance with the running of the magnetic tape, the head brush comes into contact with a magnetic head for reading and writing data stored on the magnetic tape, thereby cleaning the magnetic head.

[0069] (Appendix 14) The magnetic tape device described in Appendix 10, further comprising a lifter block having a second guide groove, wherein a second guide pin provided at the other end of the lifter block slides along the second guide groove.

[0070] (Supplementary Note 15) The magnetic tape device according to Supplementary Note 10, wherein the lifter roller is rotatably attached to the lifter block via a shaft.

[0071] (Appendix 16) The magnetic tape device according to appendix 12, wherein the lifter arm is connected to the lifter swing arm at the tip of the lifter swing arm and slides on the plate in conjunction with the swing of the lifter swing arm.

[0072] (Supplementary Note 17) The magnetic tape device according to Supplementary Note 10, wherein the lifter roller is rotatably attached to the lifter block via a plurality of shafts.

[0073] The present disclosure has been described above with reference to several embodiments. However, the present disclosure is not limited to the above embodiments. Each embodiment can be combined with other embodiments as appropriate. Furthermore, various modifications that would be understood by a person skilled in the art can be made to the configurations and details of the above embodiments within the scope of the present disclosure. This application claims priority based on Japanese Patent Application No. 2023-195160, filed November 16, 2023, the entire disclosure of which is incorporated herein by reference.

[0074] The present disclosure can be used in, for example, a magnetic tape device.

[0075] 100 Magnetic tape device 101 Magnetic head 102 Guide roller 103 Take-up reel 200 Cartridge 201 Cartridge reel 202 Magnetic tape 300 Plate 301 First shaft A 302 Lifter swing arm 303 Hole A 304 Lifter arm 305 Second shaft B 306 First guide pin A 307 Lifter cover 308 First guide groove A 309 Lifter block 310 Second guide pin B 311 Head brush 312 Lifter roller 313 Third shaft C 314 Second guide groove B

Claims

1. A tape lifter mechanism comprising a lifter block that contacts a threaded magnetic tape, the lifter block having two guide pins that support the lifter block from both ends, and the lifter block having a lifter roller for reducing dynamic friction between the magnetic tape and the lifter block when the magnetic tape is wound or rewound.

2. The tape lifter mechanism according to claim 1, further comprising a lifter cover having a first guide groove, and a first guide pin provided at one end of said lifter cover slides along said first guide groove.

3. A tape lifter mechanism as described in claim 2, comprising: a plate to which the lifter cover is fixed; and a lifter swing arm and a lifter arm which slide on the plate, the lifter cover being fixed to the plate so as to cover the lifter swing arm and the lifter arm.

4. A tape lifter mechanism as described in any one of claims 1 to 3, characterized in that a head brush is attached to the lifter block, and when the lifter roller rotates in response to the running of the magnetic tape, the head brush comes into contact with a magnetic head for reading and writing data stored on the magnetic tape, thereby cleaning the magnetic head.

5. A tape lifter mechanism as claimed in any one of claims 1 to 4, further comprising a lifter block having a second guide groove, and a second guide pin provided at the other end of the lifter block slides along the second guide groove.

6. A tape lifter mechanism according to any one of claims 1 to 5, characterized in that the lifter roller is rotatably attached to the lifter block via a shaft.

7. The tape lifter mechanism according to claim 3, characterized in that the lifter arm is connected to the lifter swing arm at its tip and slides on the plate in conjunction with the swing of the lifter swing arm.

8. The tape lifter mechanism according to any one of claims 1 to 7, characterized in that the lifter roller is rotatably attached to the lifter block via a plurality of shafts.

9. The tape lifter mechanism of claim 3, wherein as the lifter swing arm swings, the lifter block moves between the magnetic tape and a magnetic head for reading and writing data stored on the magnetic tape, and the lifter block prevents contact between the magnetic tape and the magnetic head.

10. A magnetic tape device comprising: a take-up reel for winding up a magnetic tape stored in a cartridge; a magnetic head for reading and writing data stored on the magnetic tape; and a tape lifter mechanism, wherein the tape lifter mechanism has a lifter block that contacts the magnetic tape inserted into the cartridge and has two guide pins that support the lifter block from both ends, and the lifter block has a lifter roller for reducing dynamic friction between the magnetic tape and the lifter block when the magnetic tape is wound or rewound.

11. The magnetic tape device according to claim 10, further comprising a lifter cover having a first guide groove, wherein a first guide pin provided at one end of the lifter cover slides along the first guide groove.

12. The magnetic tape device according to claim 11, comprising: a plate to which the lifter cover is fixed; and a lifter swing arm and a lifter arm that slide on the plate, the lifter cover being fixed to the plate so as to cover the lifter swing arm and the lifter arm.

13. A magnetic tape device as described in any one of claims 10 to 12, characterized in that a head brush is attached to the lifter block, and when the lifter roller rotates in response to the running of the magnetic tape, the head brush comes into contact with a magnetic head for reading and writing data stored on the magnetic tape, thereby cleaning the magnetic head.

14. A magnetic tape device as claimed in any one of claims 10 to 13, further comprising a lifter block having a second guide groove, and a second guide pin provided at the other end of the lifter block slides along the second guide groove.

15. The magnetic tape device according to any one of claims 10 to 14, wherein the lifter roller is rotatably attached to the lifter block via a shaft.

16. The magnetic tape device according to claim 12, characterized in that the lifter arm is connected to the lifter swing arm at a tip thereof and slides on the plate in conjunction with the swing of the lifter swing arm.

17. The magnetic tape device according to any one of claims 10 to 16, characterized in that the lifter roller is rotatably attached to the lifter block via a plurality of shafts.

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