JP3091906U - Magnetic recording / reproducing device - Google Patents

Abstract

(57) [Problem] To provide a magnetic recording / reproducing apparatus capable of reducing manufacturing man-hours and component costs. SOLUTION: A first locking portion 21 is inserted through leads 12a of a plurality of windings 12 wound around a fixed transformer 2 and locked in a hole 2a formed in a fixed cylinder 2.
And the lead portion 1 extending from the first locking portion 21 and
Plate portion 22 having a plurality of dovetail grooves 22a for holding 2a
And a second locking portion 2 which is provided at an end of the flat plate portion 22 and is locked by a hole 16 a formed in the control board 16.
And a lead portion 12a protruding from the tip of the wire holder 20 is provided.
Was soldered to the control board 16.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a rotating transformer connected to a rotating magnetic head and a rotating transformer. A magnetic recording / reproducing apparatus having a fixed-side transformer for transmitting a signal facing a space In particular, it relates to a fixed side transformer connection structure.

[0002]

[Prior art]

  The magnetic recording / reproducing apparatus includes a magnetic head drum having a magnetic head and a magnetic head. The magnetic head slides on the magnetic tape wound around the drum to record and reproduce. It FIG. 4 is a schematic front sectional view showing a conventional magnetic recording / reproducing apparatus.

[0003]   The magnetic head drum 1 includes a fixed cylinder 2 fixed to a chassis (not shown) and a fixed cylinder 2. The rotary cylinder 3 is pivotally supported with respect to the constant cylinder 2. Fixed cylinder A guide portion (not shown) for guiding the running of the magnetic tape is formed on the circumferential surface of the No. 2, and the center is provided with a seal. The shaft 4 is press-fitted. Inside the fixed cylinder 2, a ring is concentric with the shaft 4. The fixed-side transformer 5 is adhesively fixed.

[0004]   The fixed-side transformer 5 has a plurality of windings 12 concentrically wound around a circular core. each The tip of the winding 12 is soldered to the relay board 13 fixed to the fixed cylinder 2. It A parallel wire 14 in which a plurality of lead wires are integrated is connected to the relay board 13. ing. A connector 15 is provided at the tip of the parallel wire 14, and the fixed cylinder 2 It is connected to the control board 16 through a hole 2a provided in the.

[0005]   The rotating cylinder 3 holds bearings 7 and 8 made of oil-impregnated metal bearings, A shaft bearing 10 made of resin having a low friction coefficient is attached to the upper surface of the binder 3. Has been. The shaft receiver 10 contacts the upper surface of the shaft 4, and the bearings 7 and 8 are The rotary cylinder 3 is rotatably supported by being fitted into the shaft 4.

[0006]   The rotary cylinder 3 is provided with a plurality of windows (not shown), and a predetermined distance is provided from the peripheral surface through the windows. A plurality of magnetic heads 11 that project a certain amount are provided. The magnetic head 11 is on the fixed side. Connected to the rotating side transformer 6 which is fixedly adhered to the rotating cylinder 3 facing the transformer 5. Has been done. A motor (not shown) is provided on the upper surface of the rotary cylinder 3. It

[0007]   In the magnetic recording / reproducing apparatus having the above structure, the magnetic tape is fixed along the guide portion. It is wrapped around the binder 2 and runs in sliding contact with the fixed cylinder 2. For driving a motor The rotating cylinder 3 is rotated more, and the recording signal sent from the control board 16 is transferred to the fixed side tray. It is recorded on the magnetic tape by the magnetic head 11 via the sensor 5 and the rotation side transformer 6. Be done. In addition, the reproduction signal is extracted from the magnetic tape by the magnetic head 11 and is rotated. It is sent to the control board 16 through the side transformer 6 and the fixed side transformer 5 and reproduced. It is like this.

[0008]   Further, in Japanese Utility Model Laid-Open No. 61-111119, the fixed side transformer 5 has a flexible cable. A magnetic head drum having a printed circuit board attached thereto is disclosed. Solid for flexible substrates A plurality of terminals are projectingly provided at the end portion on the side to be attached to the constant side transformer. At the terminal The tip of the fixed-side transformer winding is wound and soldered. Flexible board The other end of is connected to the control board 16 by soldering or the like. This allows the fixed side tiger The control board 16 can be easily connected to the sensor.

[0009]

[Problems to be solved by the device]

  However, according to the conventional magnetic recording / reproducing apparatus described above, the tip of the winding is used as a relay base. Solder to board or flexible board to control parallel wires or flexible board Since it is attached to the plate, there is a problem that it takes manufacturing man-hours. In addition, parallel wires and Since the kisible substrate is expensive, there is a problem that the cost of parts of the magnetic recording / reproducing device increases. there were. Furthermore, in the former magnetic recording / reproducing device, Since the connecting board 13 and the parallel wire 14 are required, the number of parts is increased, and There is a problem that the product cost is required.

[0010]   The present invention is a magnetic recording / reproducing apparatus capable of reducing the number of manufacturing steps and the cost of parts. The purpose is to provide.

[0011]

[Means for Solving the Problems]

  In order to achieve the above-mentioned object, the present invention provides a rotating side magnetic head connected to a plurality of magnetic heads. A rotary cylinder having a lance and the rotary cylinder supporting the rotary cylinder A fixed cylinder having a fixed transformer facing the side transformer; In a magnetic recording / reproducing apparatus including a control board connected to the   While inserting the lead parts of the plurality of windings wound around the fixed side transformer, A first locking portion that locks in a hole formed in the fixed cylinder, and extends from the first locking portion And a flat plate portion having a plurality of grooves for holding the lead portion, and the flat plate portion A protrusion formed on the end of the control board and locked in a hole formed in the control board. Provide a rubber wire holder that has a locking part and the tip of the wire holder. It is characterized in that the lead portion protruding from the end is soldered to the control board. It

[0012]   According to this structure, the wire holder is placed in the hole formed in the fixed transformer. The first locking portion is locked, and the second locking portion is locked and held in the hole provided in the control board. The lead portions of the plurality of windings wound around the fixed-side transformer are provided on the first locking portion. It is inserted into the insertion hole and inserted into and held by the dovetail groove on the flat plate. The tip is soldered to the control board.

[0013]   The present invention also provides a rotary system having a rotary transformer connected to a plurality of magnetic heads. The rotor and the rotation cylinder are axially supported and face the rotation-side transformer. Fixed cylinder having fixed transformer and control connected to said fixed transformer In a magnetic recording / reproducing apparatus including a substrate,   A plurality of grooves for holding the lead portions of the plurality of windings wound around the fixed side transformer are formed. Provide a flexible wire holder that has a fixed wire attached to the fixed cylinder. Solder the lead part protruding from the tip of the wire holder to the control board. It is characterized by having done.

[0014]   The present invention also provides the magnetic recording / reproducing apparatus having the above-mentioned configuration, wherein the wire holder is used. Is a first lock which is locked in holes formed in the fixed-side transformer and the control board, respectively. The second locking portions are provided at both ends.

[0015]   According to the present invention, in the magnetic recording / reproducing apparatus having the above structure, the groove is a dovetail groove. It is characterized by that.

[0016]

[Embodiment of device]

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the magnetic field of one embodiment. It is a schematic front sectional view showing a magnetic head drum of a recording / reproducing apparatus. For convenience of explanation, The same parts as those in FIG. 4 of the conventional example are designated by the same reference numerals.

[0017]   The magnetic head drum 1 includes a fixed cylinder 2 fixed to a chassis (not shown) and a fixed cylinder 2. The rotary cylinder 3 is pivotally supported with respect to the constant cylinder 2. Fixed cylinder A guide portion (not shown) for guiding the running of the magnetic tape is formed on the circumferential surface of the No. 2, and the center is provided with a seal. The shaft 4 is press-fitted. Inside the fixed cylinder 2 is wound concentrically with the shaft 4. An annular fixed-side transformer 5 around which the wire 12 is wound is adhesively fixed. Fixed syrin On the bottom surface of the da 2 is a wire holder made of a flexible material such as natural rubber or synthetic rubber. Twenty is attached.

[0018]   The rotating cylinder 3 holds bearings 7 and 8 made of oil-impregnated metal bearings, A shaft bearing 10 made of resin having a low friction coefficient is attached to the upper surface of the binder 3. Has been. The shaft receiver 10 contacts the upper surface of the shaft 4, and the bearings 7 and 8 are The rotary cylinder 3 is rotatably supported by being fitted into the shaft 4.

[0019]   The rotary cylinder 3 is provided with a plurality of windows (not shown), and a predetermined distance is provided from the peripheral surface through the windows. A plurality of magnetic heads 11 that project a certain amount are provided. The magnetic head 11 is on the fixed side. Connected to the rotating side transformer 6 which is fixedly adhered to the rotating cylinder 3 facing the transformer 5. Has been done. Further, on the upper surface of the rotary cylinder 3, there is a motor for driving the rotary cylinder 3 to rotate. Data (not shown).

[0020]   FIG. 2 is a perspective view showing details of the wire holder 20. Wire holder 2 0 has a first locking portion 21 having groove portions 21c and 21d formed on the opposite side. Fixed The peripheral edge of the hole 2a (see FIG. 1) of the cylinder 2 is fitted into the grooves 21c and 21d, so The ear holder 20 is locked. Multiple windings wound around the fixed transformer 5 The lead portion 12a of the wire 12 is guided in the insertion hole 21f provided in the first locking portion 21. It is inserted through 21e.

[0021]   As shown in the top view of FIG. 3, the first locking portion 21 is formed in a U shape when seen in a plan view. It is composed of a holding portion 21a and an I-shaped opening / closing portion 21b. The opening / closing part 21b is a one-dot chain As shown by the line D, it is openably and closably connected to one end of the holding portion 21a, and can be folded. The insertion hole 21f is formed by closing. As a result, the lead portion 12a can be easily Can be inserted into the insertion hole 20f.

[0022]   A flat plate portion 22 having a flat plate shape is extended to the first locking portion 21. The flat plate portion 22 is a winding A plurality of grooves 22a into which the 12 lead portions 12a are inserted are formed. Groove 22a Is formed of a dovetail groove, and holds the winding 12 movably to prevent the flat plate portion 22 from being deformed. In addition to preventing disconnection due to pulling force, etc., the width t of the opening is reduced to It is designed to prevent falling off.

[0023]   In addition, at the end of the flat plate portion 22, there is formed a second locking portion 23 composed of protrusions provided at two locations. Is made. As shown in FIG. 1 described above, the second locking portion 23 is provided on the control board 16. The wire holder 20 is locked by being fitted in the hole 16a. Wire holder The lead portion 12a protruding from the tip of the flat plate portion 22 of the dar 20 is controlled by the solder 24. Soldered to the board 16.

[0024]   In the magnetic recording / reproducing apparatus having the above structure, the magnetic tape is fixed along the guide portion. It is wrapped around the binder 2 and runs in sliding contact with the fixed cylinder 2. For driving a motor The rotating cylinder 3 is rotated more, and the recording signal sent from the control board 16 is transferred to the fixed side tray. It is recorded on the magnetic tape by the magnetic head 11 via the sensor 5 and the rotation side transformer 6. Be done. In addition, the reproduction signal is extracted from the magnetic tape by the magnetic head 11 and is rotated. It is sent to the control board 16 through the side transformer 6 and the fixed side transformer 5 and reproduced. It is like this.

[0025]   According to this embodiment, the wire hos made of a flexible material such as natural rubber or synthetic rubber is used. Since the winding 12 is held by the rudder 20, it is possible to prevent the winding 12 from being broken. It is possible to reduce the number of manufacturing steps by directly soldering the lead portion 12a to the control board 16. it can. In addition, it does not require a relay board unlike the conventional example, and requires expensive parallel wires and cables. Since the flexible substrate is not used, the component cost can be reduced. Also, flat The winding 12 can be easily held by the groove 22a provided in the plate portion 22.

[0026]   Further, flexible holes are provided in the holes 2a and 16a provided in the fixed cylinder 2 and the control board 16. Since the first and second locking portions 21 and 23 are fitted and locked, the wire holder can be easily mounted. -20 can be held, and the number of manufacturing steps can be further reduced.

[0027]   Although three guide portions 21a and three grooves 22a are formed in this embodiment, the magnetic The numbers of the guide portions 21a and the grooves 22a may be increased or decreased according to the number of the pads 11. Well Also, insert the lead portions 12a at both ends of the same winding wire 12 into different grooves 22a. Is also good.

[0028]

[Effect of device]

  According to the present invention, a wire holder made of a flexible material such as natural rubber or synthetic rubber Since the winding is held by the cable, it is possible to prevent the winding from breaking and connect the lead directly. The number of manufacturing steps can be reduced by soldering to the control board. Also, like the conventional example No need for an expensive relay board and no expensive parallel wires or flexible boards Therefore, the component cost can be reduced.

[0029]   Further, flexible first and second locking portions are provided in the holes provided in the fixed cylinder and the control board. Since it is locked, it is possible to easily hold the wire holder and reduce the number of manufacturing steps. You can

[0030]   Further, according to the present invention, the winding can be easily held by the groove provided in the flat plate portion. Further Since the groove is a dovetail groove, it holds the winding so that it can move freely and pulls when the flat plate is deformed. Prevents disconnection due to force, etc., and reduces the width of the opening to prevent the winding from falling off. You can

[Brief description of drawings]

FIG. 1 is a front sectional view showing a magnetic head drum of a magnetic recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a wire holder of the magnetic recording / reproducing apparatus according to the embodiment of the present invention.

FIG. 3 is a top view showing a wire holder of the magnetic recording / reproducing apparatus according to the embodiment of the present invention.

FIG. 4 is a front sectional view showing a conventional magnetic head drum.

[Explanation of symbols]

1 magnetic head drum 2 Fixed cylinder 3 rotating cylinder 4 shafts 5 Fixed side transformer 6 Rotation side transformer 7, 8 bearings 10 Shaft holder 11 magnetic head 12 windings 12a lead part 13 Relay board 14 parallel wires 16 Control board 20 wire holder 21 First locking part 22 Flat plate 22a groove 23 Second locking part

Claims (4)

[Scope of utility model registration request] 1. A rotary cylinder having a rotary transformer connected to a plurality of magnetic heads, a fixed cylinder pivotally supporting the rotary cylinder and having a fixed transformer facing the rotary transformer, and the fixed side. In a magnetic recording / reproducing apparatus including a control board connected to a transformer, the lead portions of a plurality of windings wound around the fixed-side transformer are inserted and locked in holes formed in the fixed cylinder. A first locking part, a flat plate part extending from the first locking part and having a plurality of dovetail grooves for holding the lead part; and a flat plate part provided at an end of the flat plate part and formed on the control board. A wire holder made of rubber having a second locking portion formed of a protrusion that is locked in the hole, and the lead portion protruding from the tip of the wire holder is soldered to the control board. Magnetic recording and reproducing apparatus, characterized in that the. 2. A rotary cylinder having a rotary side transformer connected to a plurality of magnetic heads, a fixed cylinder having a fixed side transformer axially supporting the rotary cylinder and facing the rotary side transformer, and the fixed side. In a magnetic recording / reproducing apparatus including a control board connected to a transformer, a magnetic recording / reproducing apparatus having a plurality of grooves for holding lead portions of a plurality of windings wound on the fixed side transformer can be attached to the fixed cylinder. A magnetic recording / reproducing apparatus, wherein a flexible wire holder is provided, and the lead portion protruding from the tip of the wire holder is soldered to the control board. 3. The wire holder is provided with first and second locking portions at both ends that are locked in holes formed in the fixed side transformer and the control board, respectively. The magnetic recording / reproducing apparatus according to. 4. The magnetic recording / reproducing apparatus according to claim 2, wherein the groove is a dovetail groove.