GB2149957A - Magnetic head device - Google Patents
Magnetic head device Download PDFInfo
- Publication number
- GB2149957A GB2149957A GB08428497A GB8428497A GB2149957A GB 2149957 A GB2149957 A GB 2149957A GB 08428497 A GB08428497 A GB 08428497A GB 8428497 A GB8428497 A GB 8428497A GB 2149957 A GB2149957 A GB 2149957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic head
- supporting member
- magnetic
- spring
- coupling members
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B21/00—Head arrangements not specific to the method of recording or reproducing
- G11B21/16—Supporting the heads; Supporting the sockets for plug-in heads
- G11B21/20—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier
- G11B21/21—Supporting the heads; Supporting the sockets for plug-in heads while the head is in operative position but stationary or permitting minor movements to follow irregularities in surface of record carrier with provision for maintaining desired spacing of head from record carrier, e.g. fluid-dynamic spacing, slider
-
- 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
- G11B5/58—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 provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
Abstract
A magnetic head device prevents resonance of the gimbal spring (17) which supports the magnetic head (1) and ensures close contact between magnetic medium (14) and magnetic head (1) by forming the gimbal spring (17) in the shape of an octagon. <IMAGE>
Description
SPECIFICATION
Magnetic head device
FIELD OF THE INVENTION
The present invention relates to a magnetic head to be used for recording and reading of data to/from a magnetic disk, and more particularly to a gimbal mechanism of the magnetic head.
BACKGROUND OF THE INVENTION
As shown in Fig. 1 and Fig. 2, a conventional data recording and reading device for a magnetic disk includes a carriage 2 which supports a second magnetic head 1 and a holder 4 which supports a first magnetic head 3. The holder 4 is pivotally supported on a rear portion of the carriage 2, as shown.
As shown in the top plane view of Fig. 2, one end of a leaf spring 6 is fixed to the right upper part of the carriage 2 with with screws 5, 5, while the other end of the leaf spring 6 is fixed to the holder 4 with fixing screws 7, 7. The holder 4 is supported pivotally at its right lower end 4a owing to the resilient force of the leaf spring 6. Moreover, the one end of a tensile spring 9 is secured to a spring receptor 8 fixed to the underside of the holder 4, while the other end of the tensile spring 9 extends through a hold 10 formed in the carriage and is secured to one end of a lever 11. This lever 11 can rotate around a protrusion 12 provided at the lower wall of the carriage 2 to serve as a fulcrum, and threaded part 1 3b of an adjusting screw 13 having its head 1 3a held by the upper wall of carriage 2 is secured to the other end of the lever 11.
The adjusing screw 13 is engaged with the carriage 2 so that it can freely move vertically.
By adjusting the vertical position of this adjusting screw 13, the lever 11 can be pivoted in the direction of arrow A so as to adjust the tensile force applied by the spring 9 to the holder 4. In this way, the force of the pressure of the magnetic heads 1 and 3 against the magnetic disk 14 can be adjusted.
When the screws 5, 5 and 7, 7 are adjusted, the holder 4 and screws 7, 7, and the carriage 2 and screws 5, 5 are secured by a bonding agent 15 such as liquid epoxy resin in order to prevent any further rotation of the screws 5, 5 and 7, 7.
A gimbal mechanism as shown in Fig. 3 has been used to support the magnetic heads on the carriage and holder, respectively. The gimbal mechanism typically includes a gimbal spring 17 secured to the supporting area 16 of the respective carriage 2 and holder 4. This general spring 17 enables the respective magnetic head to follow the vertical and horizontal movements of the magnetic disk 14 during its rotation.
The gimbal spring 17 is typically comprised of an internal supporting member 18 holding the magnetic heads, an intermediate supporting member 19, external supporting member 20 and the coupling members 21. and 21 which couple the internal supporting member 18 and intermediate supporting member 19, and the coupling members 22 and 22 which couple the intermediate supporting member 19 and external supporting member 20. Since the intermediate supporting member 19 sways vertically in the drawing around the coupling members 22, 22 shown in Fig. 3, while the internal supporting member 18 sways horizontally in the drawing around the coupling members 21, 21, the magnetic heads 1, 3 can follow the movements of the magnetic disk.
However, the conventional gimbal spring 17 has the following disadvantages. Namely, the distance of the horizontal part 24 between coupling member 21 and angled part 23, and the distance of the vertical part 25 between angled part 23 and coupling member 22 are relatively long in the intermediate supporting member '19, thereby the horizontal amplitude and vibration of the horizontal part 24 around the coupling member 21, 21 become large, while vertical amplitude and vibration of the vertical part 25 around the coupling member 22, 22 also become large. Accordingly these horizontal and vertical parts are liable to resonate due to the horizontal and vertical vibrations and the magnetic disk 14 and magnetic heads 1, 3 may not be placed in close contact, giving adverse effect on data recording and reading.
SUMMARY OF THE INVENTION
The present invention is intended to eliminate such disadvantages of the prior art and has an object of providing a magnetic head device which prevents resonance of the gimbal spring which supports the magnetic head and, moreover, ensures close contact between a magnetic medium and the magnetic heads.
In view of attaining aforementioned object, the present invention provides at least two or more angled portions between the coupling member of the intermediate supporting member and the next coupling member.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a side view of data recording and reading device for magnetic disk. Fig. 2 is a plan view of the Fig. 1. Fig. 3 is an enlarged view of gimbal mechanism of a magnetic head of the prior art. Fig. 4 is an enlarged view of the gimbal mechanism of the present invention.
DETAILED DESCRIPTION OF THE INVEN
TION
An embodiment of the present invention is described below with reference to Fig. 4. In
Fig. 4, numerals 1 to 25 represent the same elements as these numerals represent in Fig.
3, and reference numeral 26 represents an inclined portion between the angled portions 23 and 23.
The gimbal mechanism of Fig. 4, therefore, has a generally octagonal outline instead of the generally rectangular outline of the gimbal mechanism of Fig. 3. More specifically, the one angled portion 23 between horizontal portions 24 and vertical portions 25 of Fig. 3 has been replaced by two angled portions 23 interconnected by an inclined portion 26.
As described above, the length of horizontal part 24 and vertical part 25 of the intermediate supporting member 19 itself becomes shorter because two angled portions 23, 23 are formed by changing the corner part of the conventional gimbal spring 17. Accordingly, the horizontal amplitude and vibration around the axis of the coupling members 21, 21, and the vertical vibration around the axis of the coupling members 22, 22 become smaller than that in the prior art and, moreover, resonance can be prevented because the mass can be changed with the inclined part 26 of the angled portions 23, 23.
In addition, since the angled portions 23, 23 are couplied with the inclined portion 26, the strength of the intermediate supporting member 19 itself is enhanced and thereby the gimbal spring 17 itself becomes more rigid.
In the above embodiment of the present invention, two angled portions 23, 23 are provided but two or more angled portions 23 can be provided and the present invention is not limited only to the above embodiment.
The present invention has provided at least two or more angled portions between the coupling member of the intermediate supporting member and the next coupling member and thereby prevents resonance of the gimbal spring which supports the magnetic head. The contact between the magnetic medium and the magnetic head can thus be improved to also improve the data recording and reading characteristic to/from the magnetic medium.
Claims (2)
1. A gimbal for securing a magnetic head to a holder, comprising an internal supporting member holding the magnetic head, and intermediate supporting member surrounding the internal supporting member and connected thereto by internal coupling members, and an external supporting member surrounding the intermediate supporting member and connected thereto by external coupling members and at least two angled portions formed between adjacent coupling members.
2. A magnetic head assembly substantially as hereinbefore described with reference to
Fig. 4 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983176025U JPS6085779U (en) | 1983-11-16 | 1983-11-16 | magnetic head device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8428497D0 GB8428497D0 (en) | 1984-12-19 |
| GB2149957A true GB2149957A (en) | 1985-06-19 |
Family
ID=16006406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08428497A Withdrawn GB2149957A (en) | 1983-11-16 | 1984-11-12 | Magnetic head device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS6085779U (en) |
| KR (1) | KR890005704Y1 (en) |
| DE (1) | DE3441474A1 (en) |
| GB (1) | GB2149957A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0192938A2 (en) * | 1985-02-27 | 1986-09-03 | Mitsubishi Denki Kabushiki Kaisha | Floppy disk R/W head assembly |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4791501A (en) * | 1985-07-03 | 1988-12-13 | Mitsubishi Denki Kabushiki Kaisha | Magnetic head support apparatus for a two-sided floppy disk drive |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1244230A (en) * | 1969-04-17 | 1971-08-25 | Burroughs Corp | Improvements in magnetic storage systems |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5838866B2 (en) * | 1973-12-13 | 1983-08-25 | キヤノン株式会社 | fujiyousouchi |
-
1983
- 1983-11-16 JP JP1983176025U patent/JPS6085779U/en active Pending
-
1984
- 1984-08-29 KR KR2019840008532U patent/KR890005704Y1/en not_active IP Right Cessation
- 1984-11-12 GB GB08428497A patent/GB2149957A/en not_active Withdrawn
- 1984-11-13 DE DE19843441474 patent/DE3441474A1/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1244230A (en) * | 1969-04-17 | 1971-08-25 | Burroughs Corp | Improvements in magnetic storage systems |
Non-Patent Citations (1)
| Title |
|---|
| WO 1862/83 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0192938A2 (en) * | 1985-02-27 | 1986-09-03 | Mitsubishi Denki Kabushiki Kaisha | Floppy disk R/W head assembly |
| EP0192938A3 (en) * | 1985-02-27 | 1988-04-06 | Mitsubishi Denki Kabushiki Kaisha | Floppy disk r/w head assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8428497D0 (en) | 1984-12-19 |
| KR890005704Y1 (en) | 1989-08-25 |
| KR850009689U (en) | 1985-12-05 |
| JPS6085779U (en) | 1985-06-13 |
| DE3441474A1 (en) | 1985-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2915377B2 (en) | Vibration absorption damper for optical disk drive | |
| US4086638A (en) | Device for fitting a magnetic head of a tape recorder | |
| GB2149957A (en) | Magnetic head device | |
| US5152444A (en) | Tape guiding element subjected to ultrasonic oscillations for reducing frictional resistance to movement of guided tape | |
| US5136565A (en) | Optical device for reading and writing data on a recording medium | |
| US6339511B1 (en) | Lens actuator and optical disk recording and reading apparatus using the same | |
| US5345432A (en) | Optical head | |
| KR100388117B1 (en) | magnetic disk driving device | |
| US5003419A (en) | Magnetic head supporting mechanism | |
| US4764830A (en) | Magnetic head assembly in floppy disk drive | |
| US4710836A (en) | Magnetic head | |
| JPH09251769A (en) | Optical disk device | |
| JP3118398B2 (en) | Disk player anti-vibration device | |
| US7653918B2 (en) | Stopper for preventing the separation between the traverse and the traverse frame in an optical disc drive | |
| JPH0722738Y2 (en) | Optical pickup device | |
| KR0129456Y1 (en) | Actuator supporting device of optical pick up | |
| JPH0125158B2 (en) | ||
| JPH06208785A (en) | Damper and floating mechanism | |
| JPH03228214A (en) | Magnetic head hanging device | |
| JP3670559B2 (en) | Optical head device | |
| KR930008497Y1 (en) | Anti-vibration device of cd-rom drive | |
| US4577304A (en) | Device for correcting audio record's groove eccentricity | |
| US1939940A (en) | Sound recording and reproducing device | |
| JPS5816187Y2 (en) | Support device for magnetic recording and reproducing devices | |
| JP2602855B2 (en) | Objective lens drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |