CN1059510C - Drum of a tape recorder and an assembling method therefor - Google Patents
Drum of a tape recorder and an assembling method therefor Download PDFInfo
- Publication number
- CN1059510C CN1059510C CN93120719A CN93120719A CN1059510C CN 1059510 C CN1059510 C CN 1059510C CN 93120719 A CN93120719 A CN 93120719A CN 93120719 A CN93120719 A CN 93120719A CN 1059510 C CN1059510 C CN 1059510C
- Authority
- CN
- China
- Prior art keywords
- magnet
- wheel
- hub portion
- drum
- magnetic head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
- G11B5/53—Disposition or mounting of heads on rotating support
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
To obtain a drum device of a tape recorder and the assembling method for a drum in which the cost is reduced by eliminating many parts, the assembling work of the device is easily simplified to improve a working efficiency and productivity and also a circuit substrate, a relay and wire guiding member are unnecessitated and as a result, the connecting work process between a trans-rotor and a magnetic head is more simplified. This device is provided with an upper drum 253 on whose bottom surface a magnetic head 152 is mounted, a lower drum 165 which is to be attached to the lower part of the upper drum and which is to be loaded on the deck of the tape recorder and a drum motor for revolving the upper drum at a prescribed speed. A boss 255 having a boss groove 254 into which the boss 161 of the lower drum is to be inserted is formed on the upper drum so that a trans-rotor 155 is attachingly provided directly on the upper drum and the boss of the lower drum is directly fixed at the upper end of a drum shaft 150.
Description
The magnet-wheel that the present invention relates to a kind of blattnerphone is inhaled the method for assembling this magnet-wheel.
Usually, the kinematic system of a blattnerphone transmission tape as shown in Figure 1, comprise supply reel 11 and take-up reel 12 on the tape cassete 13, the two places the both sides of tape transport 10, be used to transmit tape 14, also comprise a magnet-wheel 15, it is used on the tape 14 in tape cassete 13 signal of typing or broadcast and recorded signal, and tape cassete 13 is positioned on the tape transport 10.
In the left side of magnet-wheel 15, be equipped with one and have the pull bar 16 of drawhead 17 at free end, be used for controlling the tension force of tape 14, also dispose an impedance roller 18, be used for stably guiding the motion of tape 14.
In the both sides adjacent to the tape transport 10 of magnet-wheel 15, tape 14 is guided through the deflector roll 21 and the brace 22 of rod base, they on the top of tape transport 10 along bearing groove 19 carryings.
On the right side of tape transport, there is an intermediate bar 23 that is used for changing tape 14 direction of motion to be fixed on the tape transport 10, also be equipped with on it and make main drive shaft 24 and the pinch roller 25 of tape 14 with the stabilized speed transmission.
Because the mechanical property of tape transport 10, a procuratorial work bar 27 that is fixed with procuratorial work 26 is provided, be used for guaranteeing the plateau of tape 14 the time along the moving conduit transmission of tape transport 10.
According to the structure of above-mentioned blattnerphone, when sound-track engraving apparatus is worked, from the drawhead 17 of tape 14 on pull bar 16 that supply reel 11 comes out, impedance roller 18, deflector roll 21 and brace 22 on the rod base are transmitted, and are wound on the magnet-wheel 15.In addition, be transferred to tape 14 on the magnet-wheel 15 and pass deflector roll 21 and brace 22 on the rod base again, the procuratorial work on intermediate bar 23, main drive shaft 24 and procuratorial work bar 27 26 is wound on the take-up reel 12, and tape is contacted by the pressure of pinch roller 25 with axle.
Here, magnet-wheel 15 is recorded next signal or is broadcasted one and recorded signal on the tape 14 that moves along above-mentioned pre-routing.
The common magnet-wheel 15 that blattnerphone uses is as Fig. 2, shown in Figure 3, rotating disk 151 is pressed into the top that is fixed on magnet-wheel 150, magnet-wheel axle 150 is by magnet-wheel motor (not shown) driven rotary, and lower surface is fixed with the last magnet-wheel of magnetic head 152, and 153 are assemblied on the rotating disk 151 by a plurality of screws 154.Transformer rotor 155 is installed in the bottom of rotating disk 151, the end pin 158 that lead 156 ends and the line of transformer rotor 155 led device 157 links to each other, end pin 158 will link to each other with circuit board 160 with the electrical connection form, and circuit board is installed in magnet-wheel 153 tops through the relay 159 that links to each other with magnetic head 152.
There is a following magnet-wheel 165 last magnet-wheel 153 belows, and bearing 162 and 163 is installed in the upper and lower of its hub portion 161, and magnet-wheel axle 150 passes from hub portion 161, and resolver stator 164 is contained in the outside of hub portion 161.When packing magnet-wheel pedestal (not shown) into, following magnet-wheel 165 is installed on the tape transport of blattnerphone.
The rotating disk 151 of last magnet-wheel 153 and between the bearing 162 on hub portion 161 tops on the magnet-wheel 165 down plug-in mounting one packing ring 166, at the bearing 163 of magnet-wheel 165 hub portions 161 bottoms down be fixed between the lining 167 on the magnet-wheel axle 150 and insert a spring washer 168.
The assembly method of the magnet-wheel with said structure is described below.
At first, bearing 162 and 163 plug-in mountings are fixed on down the upper and lower part of the hub portion 161 of magnet-wheel 165, resolver stator 164 is connected in the hub portion 161, a following magnet-wheel 165 is provided thus.Rotating disk 151 is compressed the upper end that is installed in magnet-wheel axle 150, with reference to the predetermined altitude that rotating disk 151 upper end inside surfaces are used for installing, provide a rotating disk 151 thus in the processing one of the lower surface of transformer rotor 155.The upper end of the hub groove 151a of magnet-wheel 153 processes predetermined altitude to the joint face of magnetic head 152 in the reference, and a last magnet-wheel 153 that magnetic head 152 is housed is provided thus.
Then, when the inner ring of the upper end bearing 162 of magnet-wheel 165 hub portions 161 is pressed into predetermined pressure under being positioned at, plug-in mounting one packing ring 166 between the rotating disk 151 of last magnet-wheel 153 and upper end bearing 162 in magnetic hub portion 161 down, like this, between the transformer rotor 155 of upper and lower magnet- wheel 153 and 165 and resolver stator 164, continue to keep a gap, and magnet-wheel 165 and rotating disk 151 are opposite down.So, by plug-in mounting spring washer 168 lining 167 is installed, make bearing 163 inner rings that are positioned at hub portion 161 lower ends that a predetermined pressure is arranged like this.
At last, when inserting on rotating disk 151 tops of last magnet-wheel 153 on being assembled in following magnet-wheel 165, use a plurality of screws 154 to be used for fit on magnet-wheel 153, the relay 159 that links to each other with magnetic head 152, receive on the end pin 158 with the electrical connection form, end pin 158 links to each other with the wire end of transformer rotor 155 by wiring board 160.
Zu Zhuan blattnerphone magnet-wheel as mentioned above, when the magnet-wheel axle on the transformer rotor that is fixed on unillustrated magnet-wheel motor with the high speed drive rotates, last magnet-wheel 153 and the magnetic head 152 that is contained on the magnet-wheel 153 rotate simultaneously, make record or discharge signal on tape 14.
In any case, in the magnet-wheel of blattnerphone, because the transformer rotor 155 that is installed on the rotating disk 151 is to link to each other with the magnetic head 152 that is fixed on magnet-wheel 153 with circuit board 160 through relay 159, so Fu Za knot will just need many parts like this, and because the fringe cost of part has increased production cost.
Particularly, when bearing 162 inner rings of magnet-wheel 165 hub portions 161 upper ends are pressed into predetermined pressure under being positioned at, plug-in mounting one packing ring 166 is to keep that a predetermined gap is arranged between the two between the transformer rotor 155 of last magnet-wheel 153 and following magnet-wheel 165 and resolver stator 164, so magnet-wheel axle 150 is pressed abd fixed on down on the inner ring of bearing 163 of magnet-wheel 165, last magnet-wheel 153 is assemblied on the rotating disk 151 by screw 154.The relay 159 that links to each other with the magnetic head 152 that is positioned at magnet-wheel 153 lower surfaces then, with the electrical connection form, via line plate 160 is connected on the lead 156 terminal end pins 158 that link to each other with transformer rotor 155.Therefore, the assembly work of this magnet-wheel is that too be particular about, complicated, has suppressed the raising of work efficiency and throughput rate.
The present invention is exactly in order to address the above problem.One object of the present invention provides a kind of magnet-wheel and assembly method thereof of blattnerphone, its transformer rotor directly is fixed on the lower end of magnetic hub portion, going up magnet-wheel then directly is fixed on the magnet-wheel axle, because saved some parts, the assembling process of magnet-wheel is simple, work efficiency and throughput rate have been improved, so reduced cost.
Another object of the present invention provides a kind of magnet-wheel and assembly method thereof of blattnerphone, its magnetic head directly links to each other by wire end with transformer rotor, and do not need wiring board, relay and line to lead device, therefore further simplified the method for attachment of transformer rotor and magnetic head.
In order to realize above-mentioned purpose of the present invention, magnet-wheel according to blattnerphone provided by the invention, it comprise one its lower surface be equipped with magnetic head on magnet-wheel, one is installed in the described following magnet-wheel of going up the magnet-wheel bottom, and magnet-wheel motor that drives the rotation of described upward magnet-wheel at a predetermined velocity, it is characterized in that a hub portion makes and stretches out the described inboard of going up the lower surface of magnet-wheel that described magnetic head is installed thereon downwards; Be formed with a hub portion groove in the described hub portion, the described central portion of the upper surface of magnet-wheel down protrudes upward the described hub portion that inserts; Transformer rotor is contained in and is positioned at described lower end of going up the described hub portion of magnet-wheel side, and described transformer rotor is connected with a lead with described magnetic head; And described transformer rotor and a resolver stator surface contact, and described resolver stator is installed on the upper surface of described time magnet-wheel.
In order to realize another object of the present invention, the invention provides a kind of assembly method of blattnerphone magnet-wheel, may further comprise the steps:
By plug-in mounting bearing and resolver stator is installed in a following magnet-wheel is provided in the hub portion respectively, process magnetic head and hub subordinate by lower end and hold the predetermined altitude of joint face that a last magnet-wheel that is positioned on the magnet-wheel axle is provided with reference to the last magnetic hub portion groove that magnetic head and transformer rotor are installed in the upper and lower part of its hub portion;
Be positioned under the situation that the bearing inner race of magnetic hub portion upper end is pressed into predetermined pressure down, the hub portion of last magnet-wheel and down between the bearing of magnetic hub portion upper end packing ring of plug-in mounting make between the transformer rotor of magnet-wheel up and down and the resolver stator and keep a space, be positioned under the situation that the bearing inner race of magnetic hub subordinate end is pressed into downforce down, a lining is installed, simultaneously plug-in mounting one spring washer in magnet-wheel axle bottom.
Brief description
Above-mentioned purpose of the present invention and other advantage in conjunction with the drawings can be clearer to the detailed description of its most preferred embodiment, wherein
Fig. 1 is the floor map of common blattnerphone part;
Fig. 2 is the perspective exploded view of magnet-wheel only among Fig. 1, is the major part of prior art;
Fig. 3 is the sectional view after Fig. 2 assembling;
Fig. 4 is the perspective exploded view of blattnerphone magnet-wheel of the present invention;
Fig. 5 is the sectional view after Fig. 4 assembling.
Consult Fig. 4, Fig. 5, blattnerphone magnet-wheel of the present invention of diagram and assembly method thereof, last magnet-wheel 253 directly is fixed on the upper end by the magnet-wheel axle 150 of magnet-wheel motor (not shown) driven rotary.Last magnet-wheel 253 includes the hub portion 255 of band hub portion groove 254, and the spread length of groove is longer than magnetic head joint face 256, and stably to support the hub portion 161 of magnet-wheel 165 down, transformer rotor 155 is installed in the lower surface of hub portion 255.Magnetic head 152 is fixed on the magnetic head joint face 256 by web member screw 257.
Below last magnet-wheel 253, magnet-wheel 165 is once arranged, bearing 162,163 is installed in the upper and lower part of central hub portion 161, and magnet-wheel axle 150 passes from this hub portion, and resolver stator 164 is installed in the outside of hub portion 161.When packing magnet-wheel pedestal (not shown) into, following magnet-wheel 165 is installed on the tape transport 10 of blattnerphone.
When transformer rotor 155 is adjacent during with respect to resolver stator 164, allow transformer rotor rotate, just realized the rotation transmission.
Between the hub portion groove 254 of last magnet-wheel 253 and hub portion 161 upper end bearings 162, a packing ring 166 is installed, at hub portion 161 bottom end bearings 163 of magnet-wheel 165 down be fixed between the lining 167 on the magnet-wheel axle 150 spring washer 168 is installed at magnet-wheel 165 down.
Magnet-wheel axle 150 and last magnet-wheel 253 can or pass through bonding fastened to each other by ordinary hot or cold rolling.
The assembly method of the magnet-wheel with said structure is described in detail in detail below.
At first, bearing 162 and 163 is installed in down the upper and lower part of magnet-wheel 165 hub portions 161 respectively, resolver stator 164 is installed in the hub portion 161, magnet-wheel 165 once is provided thus.The lower end of the hub portion groove 254 of magnet-wheel 253 processes a predetermined altitude in the lower end of magnetic head joint face 256 and hub portion 155 in the reference, provides one to have magnetic head 152 and transmission rotor 155 and be positioned at the last magnet-wheel 253 of magnet-wheel axle 150 upper ends thus.
Then, when the inner ring of the bearing 162 that is contained in down magnet-wheel 165 hub portions 161 upper ends is pressed into predetermined pressure, plug-in mounting one packing ring 166 between the transformer rotor 155 of last magnet-wheel 253 and bearing 162 in hub portion 161 upper ends of magnet-wheel 165 down, make to continue to keep a predetermined gap between the transformer rotor 155 of magnet-wheel 253 and following magnet-wheel 165 and the resolver stator 164, the two is common to realize the rotation transmission.When being positioned at down the inner ring of hub portion 161 bottom end bearings 163 of magnet-wheel 165 with predetermined pressure be pressed into, by web member screw 169 lining 167 be fixed on the bottom of magnet-wheel axle 150, bearing and lining between a pack spring washer 168 thereafter.
The inner ring that adjustment is installed in down the upper end bearing 162 of magnet-wheel 165 hub portions 161 makes it must bear magnet-wheel 253 and be applied to this power when assembling, and its scope is 147 to 205.8 kPas of (1.5 to 2.1 kg/cm
2) 176.4 kPas of (1.8 kg/cm preferably
2).
About the rotation transmission, the gap between transformer rotor 155 and the resolver stator 164 can change according to working condition, but optimum value is 50 microns.
Magnet-wheel according to the blattnerphone of above-mentioned assembling, provide a power to the magnet-wheel motor, the magnet-wheel axle that is rotated 150 directly drives last magnet-wheels 253 rotations that are fixed on magnet-wheel axle 150 upper ends, and magnetic head 152 is rotated simultaneously, emit on the tape 14 record signal or record under signal.
In blattnerphone magnet-wheel of the present invention and assembly method thereof, transformer rotor 155 is the lower ends that are directly installed on the hub portion 255 of magnet-wheel 253, then last magnet-wheel 253 directly is fixed on the magnet-wheel axle 150.Therefore, saved the required part of plain edition magnet-wheel, as rotating disk 151, wiring board 160, relay 159 and line are led device 157, have reduced cost.
In addition, its upper end is pressed with the magnet-wheel axle 150 of magnet-wheel 253 from passing the magnet-wheel 165 hub portions 161 down, make the gap between transformer rotor 155 and the resolver stator 164 remain on 50 microns, make that like this assembly working of magnet-wheel is simple, improved work efficiency and throughput rate.
Because being that the lead 156 by transformer rotor 155 is terminal, magnetic head 152 and transformer rotor 155 directly link to each other, and do not need to use part wiring board 160 needed in the art, relay 159 and line are led device 157, so simplified the connection procedure of transformer rotor 155 and magnetic head 152.
According to above-mentioned blattnerphone magnetic drum and assembly method thereof, transformer rotor directly is fixedly mounted on the magnet-wheel, and last magnet-wheel directly is fixed on the magnet-wheel axle then.The result has saved some parts, has reduced cost, has simplified transformer rotor and magnetic head connection procedure, has improved work efficiency and throughput rate thus.
After in conjunction with most preferred embodiment explanation and narration the present invention, the people who knows this technology only will understand otherwise leave the spirit and scope of the present invention that claims limit that the variation on shape and the details is effective.
Claims (4)
1. the magnet-wheel of a blattnerphone, it comprise one its lower surface be equipped with magnetic head on magnet-wheel, one is installed in the described following magnet-wheel of going up the magnet-wheel bottom, and one drive the described magnet-wheel motor that magnet-wheel rotates of going up at a predetermined velocity, it is characterized in that,
A hub portion makes and stretches out the described inboard of going up the lower surface of magnet-wheel that described magnetic head is installed thereon downwards;
Be formed with a hub portion groove in the described hub portion, the described central portion of the upper surface of magnet-wheel down protrudes upward the described hub portion that inserts;
Transformer rotor is contained in and is positioned at described lower end of going up the described hub portion of magnet-wheel side, and described transformer rotor is connected with a lead with described magnetic head; And
Described transformer rotor contacts with resolver stator surface, and described resolver stator is installed on the upper surface of described magnet-wheel down.
2. the assembly method of the magnet-wheel of a blattnerphone, its step comprises:
By plug-in mounting bearing and resolver stator is installed in a following magnet-wheel is provided in the hub portion respectively, process magnetic head and hub subordinate by lower end and hold the predetermined altitude that is connected area that a last magnet-wheel that is positioned on the magnet-wheel axle is provided with reference to the last magnetic hub portion groove that magnetic head and transformer rotor are installed in the upper and lower part of its hub portion;
Under the situation that the described bearing inner race that is positioned at described magnetic hub portion down upper end is pressed into predetermined pressure, on described magnetic hub portion and between the described bearing of described magnetic hub portion down upper end packing ring of plug-in mounting, keep a gap about making between the transformer rotor of magnet-wheel and the resolver stator, under the situation that the described bearing inner race that is positioned at the described end of magnetic hub subordinate down is pressed into predetermined pressure, a lining is installed, simultaneously plug-in mounting one spring washer in described magnet-wheel axle bottom.
3. the assembly method of blattnerphone magnet-wheel according to claim 2 is characterized in that, the pressure that is applied to described bearing inner race is 176.4 kPas of (1.8 kg/cm
2).
4. the assembly method of blattnerphone magnet-wheel according to claim 2 is characterized in that, the gap between transformer rotor and the resolver stator is 50 microns.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR21109/1992 | 1992-10-30 | ||
| KR920021109 | 1992-10-30 | ||
| KR21109/92 | 1992-10-30 | ||
| KR21246/93 | 1993-10-14 | ||
| KR21246/1993 | 1993-10-14 | ||
| KR1019930021246A KR940009944A (en) | 1992-10-30 | 1993-10-14 | Drum unit and drum assembly method of tape recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1088706A CN1088706A (en) | 1994-06-29 |
| CN1059510C true CN1059510C (en) | 2000-12-13 |
Family
ID=26629353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93120719A Expired - Fee Related CN1059510C (en) | 1992-10-30 | 1993-10-30 | Drum of a tape recorder and an assembling method therefor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH06342545A (en) |
| CN (1) | CN1059510C (en) |
| GB (1) | GB2272988B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100220829B1 (en) * | 1996-06-19 | 1999-09-15 | 전주범 | Head drum for digital vcr |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101322A (en) * | 1987-03-19 | 1988-10-05 | 德利信电机股份有限公司 | Rotary head device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8203922A (en) * | 1982-10-11 | 1984-05-01 | Philips Nv | MAGNETIC TAPE DEVICE AND METHOD FOR MANUFACTURING THAT. |
| JPH01154501U (en) * | 1988-04-08 | 1989-10-24 | ||
| US5325248A (en) * | 1991-01-08 | 1994-06-28 | Sharp Kabushiki Kaisha | Rotary head assembly |
-
1993
- 1993-10-29 GB GB9322391A patent/GB2272988B/en not_active Expired - Fee Related
- 1993-10-30 CN CN93120719A patent/CN1059510C/en not_active Expired - Fee Related
- 1993-11-01 JP JP5273496A patent/JPH06342545A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88101322A (en) * | 1987-03-19 | 1988-10-05 | 德利信电机股份有限公司 | Rotary head device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2272988A (en) | 1994-06-01 |
| GB9322391D0 (en) | 1993-12-15 |
| CN1088706A (en) | 1994-06-29 |
| JPH06342545A (en) | 1994-12-13 |
| GB2272988B (en) | 1996-08-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |