JP3092373U - Magnetic head device - Google Patents

Abstract

(57) [Summary] [Purpose] To efficiently perform azimuth and tilt adjustment work by preventing interference due to noise and reducing the number of parts. A plurality of wire insertion holes are provided at predetermined intervals at a side edge portion 20a of a head substrate 20 fixed to the back surface of a magnetic head for voice erasure and voice / control at a distance from a head cylinder 2 of the head substrate 20. And a substantially L-shaped extended plate portion 29 is integrally formed on the side edge portion 20a to form a cable insertion concave portion 30 between the extended plate portion 29 and the head substrate 20. And the cable 2
2 is inserted into each wire insertion hole 28 and soldered to the printed wiring of the head substrate 20, and the cable 22 is bent in a substantially U-shape to the side far from the head cylinder 2. Then, it was inserted into the cable insertion concave portion 30.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention is, for example, for voice erasing and voice / control in a magnetic tape device. The present invention relates to a magnetic head device including a magnetic head, etc.

[0002]

[Prior art]

  Conventionally, as a technique of a magnetic tape device, there is a technique disclosed in Japanese Patent Laid-Open No. 2000-339614. There is one described, and an example of it will be explained based on FIG. 6, this is the chassis 1, a head cylinder 2, a movable tape guide post 3, a full-width erasing magnetic head 4, voice erasing and voice / control magnetic heads 5, 6, fixed guide posts 7, back tension post 8, capstan 9 and pinch roller 10 The movable tape guide post 3 pulls it from the tape cassette 11. The ejected magnetic tape t is brought into contact with the head cylinder 2 and the magnetic heads 4 to 6, By rotating the push-stand 9 to run the magnetic tape t, the magnetic tape t The video and audio are recorded, played back, or erased from the media.

[0003]   The magnetic heads 5 and 6 for voice erasing and voice / control are shown in FIGS. As shown in FIG. 1, the tilt adjusting mechanism 13 is arranged on the chassis 1 and The tilt adjusting mechanism 13 attaches a screw or the like near the head cylinder 2 on the chassis 1. A fixing plate 15 fixed by a tool 14 and having a substantially triangular shape in plan view, and a spring 1 on the fixing plate 15. 6, a support plate 17 having a substantially triangular shape in a plan view, and the support plate 17 extending through three corners. The through holes 17a are formed and screwed into the screw holes 15a formed at the three corners of the fixing plate 15. It is composed of three adjusting screws 18a to 18c, and the magnetic head 5 is mounted on the support plate 17. , 6 are provided upright, and the amount of screwing of each of the adjusting screws 18a to 18c can be adjusted. Azimuth adjustment and tilt adjustment are performed by.

[0004]   As shown in FIGS. 6 to 9, the magnetic heads 5 and 6 are Connected from above to the connector 21 provided on the top of the head substrate 20 fixed to the back surface The main board is connected by the connector 24 through the through hole 1a of the chassis 1 through the cable. It is connected to the plate 23. Further, as shown in FIG. 6, the drum of the head cylinder 2 The other end of the cable 25 having one end connected to the motor passes through the through hole 1b of the chassis 1. Therefore, it is connected to the main board 23 through the connector 26.

[0005]

[Problems to be solved by the device]

  In the above configuration, as shown in FIG. 6, the magnetic head 5 and 6 side cables 22 are connected to the head. It is extended from above the substrate 20 and is close to the cable 25 on the head cylinder 2 side. Since the space α between the two 22 and 25 is small, the drum model of the head cylinder 2 is The noise generated in the data from the cable 25 on the head cylinder 2 side to the magnetic heads 5, 6 Transfer to the side cable 22 to prevent audio / control signal recording / playback. May cause.

[0006]   In addition, as shown in FIG. 9, one end of the cable 22 is fixed from above the head substrate 20. It is connected to the connector 21, and the other end of the cable 22 is pulled to guide the connector 24. When connecting to the main board 23, an excessive tensile force P is applied to the cable 22. The pulling force P causes the head substrate 20 to use the front adjustment screw 18a as a fulcrum. Then, the support plate 17 is tilted rearward and the support plate 17 is tilted, so that the front adjusting screw 18a Azimuth adjustment and tilt adjustment based on For example, noise may occur on the reproduced screen.

[0007]   Further, as shown in FIG. 9, one end of the cable 22 is connected to the head substrate 20. The connector 21 is used for this purpose, and the number of parts is increased by the amount of the connector 21. Production costs are high.

[0008]   Further, as shown in FIG. 7, the cable 22 passes above the adjusting screw 18c and is not overlapped. Therefore, when finely adjusting the adjusting screw 18c with a tool such as a screwdriver, It is necessary to bend 22 to displace it sideways. It is harmful and the work efficiency is low.

[0009]   In view of the above-mentioned difficulties, the present invention prevents obstacles due to noise and has a small number of parts. A magnetic head that enables efficient adjustment work of zimuth and tilt. The purpose is to provide a device.

[0010]

[Means for Solving the Problems]

  In order to achieve the above object, the device according to claim 1 is a head cylinder on a chassis. The fixing plate fixed to the chassis and a spring on the fixing plate near the connector. Tilt adjusting mechanism including a supporting plate and a plurality of adjusting screws for connecting the supporting plate to a fixing plate A magnetic field for erasing voice and controlling voice that is installed on the support plate. A head is attached to the back surface of the magnetic head It is connected to the main board via a cable connected from above to the connector provided. Drive the magnetic tape that is in contact with the head cylinder and the magnetic head. To record, play, or erase video and audio on the magnetic tape. In this magnetic tape device, the connector is omitted and the head substrate A plurality of wire insertion holes are provided on the side edge portion on the far side with respect to the saddle cylinder at a predetermined interval. By being integrally provided with a substantially L-shaped extension plate portion at the side edge portion while penetrating A cable insertion recess is formed between the extension plate and the head substrate. Insert each wire tip of the cable into each wire insertion hole and print the head substrate. Solder it to the wire, and connect the cable to the side farther from the head cylinder. It is curved in a U shape and is inserted into the cable insertion recess. is doing.

[0011]   According to the above configuration, the head substrate is provided with a casing on the side edge portion on the far side of the head cylinder. Cable is connected from the side and the cable connected to the cable and the head cylinder. Is sufficiently far away from the cable that the head cylinder drum motor generates Is not likely to transfer from the head cylinder side cable to the magnetic head side cable. It almost disappears and greatly improves the recording / playback function of audio / control signals. You can

[0012]   Also, in the assembly process, connect the other end of the cable that has one end connected to the magnetic head to the main board. When connecting to the board, even if an excessive tensile force is applied to the cable, Since the adjustment screws are distributed and applied, there is no risk of the support plate tilting. The azimuth adjustment and the tilt adjustment can be held properly. You can play a clear screen.

[0013]   In addition, the cable connected to the magnetic head runs beside each adjustment screw, When performing fine adjustment of each adjustment screw with a tool such as a bar, the cable The adjustment work can be performed efficiently without causing any obstacle.

[0014]   Furthermore, solder the tip of each wire of the cable to the printed wiring of the head substrate. Since the conventional connector is not required, the number of parts is reduced by the amount that is no longer needed. It is possible to reduce the production cost by reducing.

[0015]   Moreover, connect the cable connected to the magnetic head to the side far from the head cylinder. Since the cable is inserted into the cable insertion recess from one side, the cable is reduced to a substantially U shape. Since it is forcibly separated from the magnetic tape that bends and contacts the magnetic head, It is possible to reliably prevent accidents where the cable of the Since the tensile force applied to the cable is blocked by the U-shaped curved portion, The soldering can be reliably protected from being damaged by tensile forces.

[0016]   In short, noise is prevented and the number of parts is small. A practical magnetic tape device that enables efficient tilt adjustment work. It is intended to provide storage.

[0017]   According to a second aspect of the invention, the chassis is provided near the head cylinder on the chassis. A fixed plate that is fixed, a support plate that is arranged on the fixed plate via a spring, and a fixed plate that fixes the support plate. A tilt adjusting mechanism consisting of a plurality of adjusting screws connected to the A head substrate and a cable in which an upright magnetic head is fixed to the back surface of the magnetic head. A magnetic tape that is connected to the main substrate via To record, play, or erase the magnetic tape. In the magnetic tape device, the cable is connected to the head substrate of the head substrate. It is characterized in that it is laterally connected to the side edge portion on the far side with respect to the solder.

[0018]   According to the above configuration, the head substrate is provided with a casing on the side edge portion on the far side of the head cylinder. Cable is connected from the side and the cable connected to the cable and the head cylinder. Is sufficiently far away from the cable that the head cylinder drum motor generates Is not likely to transfer from the head cylinder side cable to the magnetic head side cable. It almost disappears, and the recording / playback function of the magnetic head can be greatly improved. .

[0019]   Also, in the assembly process, connect the other end of the cable that has one end connected to the magnetic head to the main board. When connecting to the board, even if an excessive tensile force is applied to the cable, Since the adjustment screws are distributed and applied, there is no risk of the support plate tilting. Therefore, the tilt adjustment function can be properly held.

[0020]   In addition, the cable connected to the magnetic head runs beside each adjustment screw, When performing fine adjustment of each adjustment screw with a tool such as a bar, the cable The adjustment work can be performed efficiently without causing any obstacle.

[0021]   A third aspect of the present invention is the device of the second aspect, wherein the head substrate is A plurality of wire insertion holes with a certain interval at the side edge on the far side with respect to the head cylinder. Is inserted through each wire tip of each cable through each wire insertion hole. It is characterized by being soldered to the printed wiring of the head substrate.

[0022]   According to the above configuration, each wire tip of the cable is used as the printed wiring of the head substrate. Since it is soldered and the conventional connector is unnecessary, only the part that is no longer needed Manufacturing costs can be reduced by reducing the number of parts.

[0023]   A fourth aspect of the invention is the device of the third aspect, wherein the head substrate is A substantially L-shaped extension plate portion may be integrally formed on the side edge portion on the far side with respect to the head cylinder. And a recess for cable insertion is formed between the extension plate and the head substrate. , Bending the cable in a substantially U shape to the side farther from the head cylinder. In addition, it is characterized in that it is inserted into the cable insertion recess.

[0024]   According to the above configuration, the cable connected to the magnetic head is connected to the head cylinder. By inserting the cable from the far side into the cable insertion recess, the cable is substantially U-shaped. It is forcibly separated from the magnetic tape that bends in a small shape and contacts the magnetic head. Therefore, it is possible to prevent accidentally the cable contacting the magnetic tape. In addition, since the tensile force applied to the cable is blocked by the U-shaped curved portion, each wire tip The soldering of the ends can be reliably protected from being damaged by tensile forces.

[0025]

[Embodiment of device]

  FIG. 1 shows a magnetic tape device having a magnetic head device according to an embodiment of the present invention. Shown behind the magnetic heads 5 and 6 for voice erasing and voice / control The side edge 20a of the head substrate 20 fixed to the surface on the far side with respect to the head cylinder 2. A cable 22 is connected to the side. Configurations other than the above are shown in FIGS. The same parts as those in FIG.

[0026]   According to the above configuration, the cable 22 connected to the head substrate 20 and the head cylinder Since the distance α between the cable 25 and the cable 25 connected to 2 is large and sufficiently separated, Noise generated by the drum motor of the head cylinder 2 is caused by the head cylinder side cable 2 Almost no transfer from 5 to the magnetic head side cable 22, It is possible to greatly improve the recording / playback function of the audio / control signal.

[0027]   As shown in FIGS. 2 to 5, with respect to the head cylinder 2 of the head substrate 20, A plurality of wire insertion holes 28 are formed in the side edge portion 20a on the far side at predetermined intervals in the vertical direction. Along the side edge portion 20a, a substantially L-shaped extension plate portion 29 is integrally formed integrally with the side edge portion 20a. With this, a cable insertion concave portion 30 is formed between the extension plate portion 29 and the head substrate 20. As shown in FIG. 5A, each wire tip portion 22a of the cable 22 is formed. To the printed wiring (not shown) of the head substrate 20 by inserting the wire into each wire insertion hole 28. Solder 31 and connect the cable 22 to the head cylinder 2 as shown in FIG. 5 (b). On the other hand, the cable is bent in a substantially U shape to the side on the far side and inserted into the cable insertion recess 30. As a result, the cable 22 is connected to the head substrate 20.

[0028]   According to the above configuration, as shown in FIG. 2, one end of the magnetic heads 5 and 6 is assembled in the assembly process. When connecting the other end of the cable 22 connected to the main board 23 to the cable Even if an excessive pulling force P is applied to the rule 22, the pulling force P is Since the support plate 17 does not tilt, the adjustment screws 18 Azimuth adjustment and tilt adjustment by a to 18c can be held properly. For example, you can reproduce a clear screen without noise.

[0029]   Moreover, as shown in FIG. 2, the cable 22 connected to the magnetic heads 5 and 6 is adjusted. Since the screws 18a to 18c pass laterally, a tool such as a screwdriver is used to adjust each adjustment screw 1 When making fine adjustments to 8a to 18c, the cable 22 does not hinder the adjustment work. The adjustment work can be performed efficiently.

[0030]   Further, as shown in FIG. 2, connect each wire tip portion 22a of the cable 22 to the head substrate. It is soldered 31 to the printed wiring (not shown) of 20, and the conventional connector 21 (Refer to Fig. 9) is unnecessary. Production costs can be reduced.

[0031]   Moreover, as shown in FIG. 2, the cable 22 connected to the magnetic heads 5 and 6 is The cable insertion concave portion 3 is curved in a substantially U shape to the side farther from the cylinder 2 Magnetic tape which is inserted through the cable 0 and contacts the cable 22 and the magnetic heads 5 and 6. Since a space having a predetermined spacing β is forcibly formed between the cable 22 and It is possible to reliably prevent an accident in which the magnetic tape t comes into contact with the magnetic tape t. Since the tensile force P applied to the cable 2 is blocked by the substantially U-shaped curved portion of the cable 22, The soldering 31 of the ear tip 22a is surely protected from being damaged by the tensile force P. You can

[0032]   In the above embodiment, the magnetic heads 5 and 6 for voice erasing and voice / control are used. However, the present invention is not limited to this. It is also applied to various magnetic heads such as the magnetic head 4.

[0033]   Also, the explanation has been given by taking a single magnetic tape device as an example, but the present invention is not limited to this. Instead of, for example, a so-called tele-video or DVD integrated with a television receiver, It is also applied to various devices such as embodied ones.

[0034]

[Effect of device]

  According to the invention as set forth in claim 1, the side of the head substrate farther from the head cylinder. Cable is connected from the side to the side edge of the The cable connected to is sufficiently far away from the head cylinder that the drum motor The noise generated by the noise is transmitted from the head cylinder side cable to the magnetic head side cable. Almost no transfer, audio / control signal recording / playback function Can be greatly improved.

[0035]   Also, in the assembly process, connect the other end of the cable that has one end connected to the magnetic head to the main board. When connecting to the board, even if an excessive tensile force is applied to the cable, Since the adjustment screws are distributed and applied, there is no risk of the support plate tilting. The azimuth adjustment and the tilt adjustment can be held properly. You can play a clear screen.

[0036]   In addition, the cable connected to the magnetic head runs beside each adjustment screw, When performing fine adjustment of each adjustment screw with a tool such as a bar, the cable The adjustment work can be performed efficiently without causing any obstacle.

[0037]   Furthermore, solder the tip of each wire of the cable to the printed wiring of the head substrate. Since the conventional connector is not required, the number of parts is reduced by the amount that is no longer needed. It is possible to reduce the production cost by reducing.

[0038]   Moreover, connect the cable connected to the magnetic head to the side far from the head cylinder. Since the cable is inserted into the cable insertion recess from one side, the cable is reduced to a substantially U shape. Since it is forcibly separated from the magnetic tape that bends and contacts the magnetic head, It is possible to reliably prevent accidents where the cable of the Since the tensile force applied to the cable is blocked by the U-shaped curved portion, The soldering can be reliably protected from being damaged by tensile forces.

[0039]   In short, noise is prevented and the number of parts is small. A practical magnetic tape device that enables efficient tilt adjustment work. It is intended to provide storage.

[0040]   According to the invention as set forth in claim 2, the side of the head substrate farther from the head cylinder. Cable is connected from the side to the side edge of the The cable connected to is sufficiently far away from the head cylinder that the drum motor The noise generated by the noise is transmitted from the head cylinder side cable to the magnetic head side cable. Almost no transfer, greatly improving the recording / playback function by the magnetic head. be able to.

[0041]   Also, in the assembly process, connect the other end of the cable that has one end connected to the magnetic head to the main board. When connecting to the board, even if an excessive tensile force is applied to the cable, Since the adjustment screws are distributed and applied, there is no risk of the support plate tilting. Therefore, the tilt adjustment function can be properly held.

[0042]   In addition, the cable connected to the magnetic head runs beside each adjustment screw, When performing fine adjustment of each adjustment screw with a tool such as a bar, the cable The adjustment work can be performed efficiently without causing any obstacle.

[0043]   According to the invention of claim 3, each wire tip of the cable is connected to the head substrate by Since it is soldered to the lint wiring and the conventional connector is not necessary, The production cost can be reduced by reducing the number of parts.

[0044]   According to the invention as set forth in claim 4, the cable connected to the magnetic head is connected to the head shield. The cable is inserted into the cable insertion recess from the side on the far side with respect to the cable. The bull is forcibly bent into a U-shape and is forced from the magnetic tape that contacts the magnetic head. Since they are separated from each other, it is possible to ensure that the cable does not come into contact with the magnetic tape. Since the pulling force applied to the cable is blocked by the substantially U-shaped curved portion, , Be sure to protect the soldering of each wire tip from being damaged by tensile force. You can

[Brief description of drawings]

FIG. 1 is a schematic plan view showing a magnetic tape device including a magnetic head device according to an embodiment of the present invention.

FIG. 2 is a plan view of the magnetic head device.

FIG. 3 is a front view of the magnetic head device.

FIG. 4 is a side view of the magnetic head device.

5A and 5B are perspective views showing a procedure for connecting a cable.

FIG. 6 is a schematic plan view showing a conventional magnetic tape device.

FIG. 7 is a plan view of the magnetic head device.

FIG. 8 is a front view of the magnetic head device.

FIG. 9 is a side view of the magnetic head device.

[Explanation of symbols]

1 Chassis 2 Head Cylinders 5 and 6 Magnetic Heads for Voice Erase and Voice / Control 13 Tilt Adjusting Mechanism 15 Fixing Plate 16 Spring 17 Support Plates 18a-18b Adjusting Screw 20 Head Board 22 Cable 22a Wire Tip 23 Main Board 28 Wire Insertion Hole 29 extension plate 30 cable insertion recess 31 soldering t magnetic tape

Claims (4)

[Scope of utility model registration request] 1. A vicinity of a head cylinder on a chassis,
An inclination adjusting mechanism including a fixing plate fixed to the chassis, a supporting plate arranged on the fixing plate via a spring, and a plurality of adjusting screws for connecting the supporting plate to the fixing plate is provided, and the inclination adjusting mechanism is provided on the supporting plate. A magnetic head for standing voice erasing and voice / control is connected to the main board through a head board fixed to the back surface of the magnetic head and a cable connected from above to a connector provided on the top of the head board. Cage,
A magnetic tape device configured to record, reproduce, or erase video and audio on the magnetic tape by running a magnetic tape in contact with the head cylinder and the magnetic head, and omitting the connector. A plurality of wire insertion holes are formed through a side edge portion of the head substrate farther from the head cylinder at a predetermined interval, and a substantially L-shaped extension plate portion is integrally formed on the side edge portion. As a result, a cable insertion recess is formed between the extension plate portion and the head substrate, and each wire tip portion of the cable is inserted into each wire insertion hole and soldered to the printed wiring of the head substrate. The magnetic head device is characterized in that the cable is bent in a substantially U-shape on a side farther from the head cylinder and is inserted into the cable insertion recess. 2. In the vicinity of the head cylinder on the chassis,
An inclination adjusting mechanism including a fixing plate fixed to the chassis, a supporting plate arranged on the fixing plate via a spring, and a plurality of adjusting screws for connecting the supporting plate to the fixing plate is provided, and the inclination adjusting mechanism is provided on the supporting plate. An upright magnetic head is connected to a main substrate via a head substrate and a cable fixed to the back surface of the magnetic head, and the magnetic tape brought into contact with the magnetic head is made to travel to the magnetic tape. On the other hand, a magnetic tape device for recording, reproducing, or erasing, wherein the cable is laterally connected to a side edge portion of the head substrate on a side far from the head cylinder. Head device. 3. A plurality of wire insertion holes are formed through a side edge portion of the head substrate farther from the head cylinder at predetermined intervals, and each wire tip portion of the cable is connected to each wire insertion hole. The magnetic head device according to claim 2, wherein the magnetic head device is inserted into the printed circuit board and soldered to a printed wiring of the head substrate. 4. A recess for cable insertion between the extension plate and the head substrate by integrally forming a substantially L-shaped extension plate at a side edge of the head substrate on a side far from the head cylinder. 5. The cable is formed, and the cable is bent in a substantially U shape laterally on the side far from the head cylinder so as to be inserted into the cable insertion recess. Magnetic head device.