CN1009400B - Arranging structure of inverting heads for auto-inverting recorder - Google Patents
Arranging structure of inverting heads for auto-inverting recorderInfo
- Publication number
- CN1009400B CN1009400B CN 88108713 CN88108713A CN1009400B CN 1009400 B CN1009400 B CN 1009400B CN 88108713 CN88108713 CN 88108713 CN 88108713 A CN88108713 A CN 88108713A CN 1009400 B CN1009400 B CN 1009400B
- Authority
- CN
- China
- Prior art keywords
- magnetic head
- flexure strip
- rectangle tubular
- tubular recess
- keeps
- 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
Links
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
- G11B5/54—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 into or out of its operative position or across tracks
- G11B5/55—Track change, selection or acquisition by displacement of the head
- G11B5/5513—Specially adapted for transducing in both travelling directions of tape
- G11B5/5517—Controlled by automatic tape drive reversing arrangement
-
- 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
Landscapes
- Supporting Of Heads In Record-Carrier Devices (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
A turn-over head mounting for an automatic reversing tape recorder has a head holder with a square axial hole in which the magnetic head is received. A resilient tongue is formed on each of two adjacent outer walls of the head while an abutment is formed on each of two adjacent inner walls of the head holder. When the head is inserted into the hole, the resilient tongues engage behind their respective abutments to lock the head in place.
Description
The present invention relates to the mounting structure of automatic reverse type sound-track engraving apparatus counter-rotating magnetic head, specifically, is about keeping the improvement done on the body for making magnetic head be installed to magnetic head easily.
Existing automatic reverse type sound-track engraving apparatus uses cheap two-channel magnetic head, and when the working direction of conversion tape, making magnetic head is center Rotate 180 ° with the axle perpendicular to the contact with tape face.
Fig. 4 illustrates the structure of the magnetic head peripheral part on this automatic reverse type sound-track engraving apparatus of prior art.The magnetic head base 2 that can slide freely along the direction of arrow is installed on the sound-track engraving apparatus chassis 1, rotates on this pedestal 2 and supporting magnetic head freely and keep body 3 that two-channel magnetic head 4 is clamped in this magnetic head keeping on body 3.Therefore, conversion along with the tape working direction, said head pedestal 2 is drawn back, magnetic head 4 is separated from from tape 5, then, after to make magnetic head keep body 3 be 180 ° of center counter-rotatings with the axle A perpendicular to magnetic head 4 and contact with tape face, make magnetic head base 2 advance to recording or playback position again.
Magnetic head 4 is installed to described magnetic head keeps body 3 to be performed such: one side insertion magnetic head keeps body 3 from the front in order to make magnetic head 4, the recess 6 of rectangle tubular is being set thereon, after magnetic head being inserted in the recess 6 of this rectangle tubular, with gib screw 7 it is fixed on magnetic head and keeps in the body.
If without gib screw, also can resemble as shown in Figure 5 and fix with bonding agent 8.
Keep all will resembling on the body 3 and use gib screw 7 as shown in Figure 4 owing to magnetic head 4 is installed to magnetic head in the prior art, or resemble and use bonding agent 8 to carry out shown in Figure 5, inconvenient operation, therefore hope is improved this.
The objective of the invention is for using the two-channel magnetic head, making when the conversion of the working direction of tape magnetic head with perpendicular to the axle of contact with tape face automatic reverse type sound-track engraving apparatus as the form of 180 ° of center counter-rotatings, improvement is installed to magnetic head to magnetic head and keeps operability on the body, and the counter-rotating magnetic head mounting structure of fitting operation excellent in efficiency is provided.
In order to solve described prior art problems, reach its intended purposes, the present invention keep at the magnetic head that inserts magnetic head body rectangle tubular recess adjacent two inside surfaces or with two outside surfaces of the corresponding magnetic head of these inside surfaces on flexure strip integrally is set, and make the front end of these flexure strips and an other side's corresponding tables surface elastic crimping, thereby the surface that another parts of flexure strip are not set simultaneously is provided with to collide with the top of flexure strip and connects the stop component that can prevent that magnetic head from extracting.
When magnetic head was inserted the rectangle tubular recess of magnetic head maintenance body, flexure strip generation elastic deformation made magnetic head to insert.After magnetic head inserts rectangle tubular recess, magnetic head is withstood on two other surface because of being arranged on two flexure strips on the adjacently situated surfaces, magnetic head just is maintained at magnetic head and keeps on the precalculated position of body, and the top of flexure strip and stop component bump to connect and can prevent that magnetic head from extracting.
Below, in conjunction with Fig. 1 and Fig. 2 one embodiment of the present of invention are described.
Fig. 1 is the longitudinal diagram of parts around the mounting structure of the counter-rotating magnetic head on the expression automatic reverse type sound-track engraving apparatus, and Fig. 2 is the exploded perspective view of these parts.The magnetic head base 11 that slides freely along the direction of arrow is installed on the sound-track engraving apparatus chassis 10.Magnetic head base 11 is that demountable rear support 11b constitutes by base body 11a shown in Figure 2 with for this body 11a.On body 11a and supporter 11b, be respectively arranged with circular support hole 12a, 12b.Rotate among above-mentioned two supported hole 12a, the 12b and supporting magnetic head maintenance body 13 freely, two-channel magnetic head 14 is contained in magnetic head and keeps in the body 13.Thereby when being formed on the conversion of tape working direction, making magnetic head keep body 13 is the structure of 180 ° of center counter-rotatings with the axle A perpendicular to magnetic head 14 and tape phase-contact surface.
Described magnetic head keeps body 13 by front end major diameter part 15 with constitute with one heart and at the cylindrical shaft 16 of axially continuity with it, and with the front end large-diameter portion divide 15 and cylindrical shaft 16 two parts rotate and be supported on freely in each cylindrical shape supported hole 12a, 12b of pedestal 11.
The profile of above-mentioned front end major diameter part 15 is made cylindrical shape, inside is the rectangle tubular recess 17 of front opening, and this rectangle tubular recess 17 is connected with the center pit of cylindrical shaft 16.
Among 4 inside surface 18a-18b of rectangle tubular recess 17, two adjacent inside surfaces are reference field 18a and 18b that decision magnetic head 14 positions are used, and the edge of the opening of two surperficial 18c, 18d is being provided with stop component 19c and 19d projectedly in addition.
Described two-channel magnetic head 14 is general prism shape, and its periphery is coating with sheet metal.In the middle of its four outside surface 20a-20d, be provided with respectively by above-mentioned sheet metal on corresponding with two inside surface 18c of recess 17 and 18d two outside surface 20c and the 20d and be cut into the formed flexure strip 21 of rectangle.Each flexure strip 21 is all made the place ahead to magnetic head towards outer incline, two inside surface 18c of the front end that makes them and described rectangle tubular recess 17 and 18d crimping mutually.
The connecting line 22 of magnetic head 14 passes cylindrical shaft 16 wirings.In addition, at the end of cylindrical shaft 16 gear 23 is housed, the operation power that tape moves towards the reversing device (not shown) is promptly transmitted by this gear 23, thereby makes magnetic head 14 do the counter-rotating action.
Therefore, when being installed to described magnetic head 14 on the magnetic head base 11, as shown in Figure 2, connecting line 22 keys of magnetic head 14 being crossed magnetic head keep body 13, again magnetic head 14 is inserted rectangle tubular recess 17 from its rear portion.At this moment, the edge sliding contact of flexure strip 21 and stop component 19c, 19d, once curved inwardly, one leaves the edge of stop component 19c and 19d, with regard to elastic recovery, its front end is crimped on respectively on the inside surface 18c and 18d of rectangle tubular recess 17, and outside surface 20a, the 20b of magnetic head 14 is pressed on two reference field 18a, the 18b of rectangle tubular recess 17, like this, magnetic head 14 just has been fixed on the precalculated position in the rectangle tubular recess 17.
Because the front end of flexure strip 21 and stop component 19c, 19d bump and connect, thereby can prevent that magnetic head 14 from being pulled out from rectangle tubular recess 17.After magnetic head 14 is installed on the magnetic head maintenance body 13, make magnetic head keep the front end major diameter part 15 and the cylindrical shaft 16 of body 13 to match with each circular support hole 12a, the 12b of magnetic head base 11 respectively, set up gear 23 at the end of cylindrical shaft 16 then, magnetic head unit has just assembled.
Fig. 3 is the longitudinal section of parts around the counter-rotating magnetic head mounting structure of explanation the present invention the 2nd embodiment.In first embodiment, flexure strip 21 is arranged on the magnetic head, in the present embodiment, flexure strip 25 is arranged on plastic magnetic head keeps body on one side, makes it into as a whole.That is to say, keep at magnetic head in the middle of 4 inside surface 18a-18d of the rectangle tubular recess 17 that front end major diameter part 15 places of body 13 are provided with, two inside surfaces of adjacency as reference field 18a, 18b, are only illustrated one among the flexure strip 25(figure) be integrally formed in respectively in addition on two inside surface 18c and the 18d.The front end of this flexure strip 25 is inwardly outstanding by the side-walls of front end major diameter part 15, extends after opening one side direction of rectangle tubular recess 17.
On the other hand, on the two-channel magnetic head 14 of rectangle tubular with each flexure strip 25 corresponding two outside surface on be formed with among the recess 26(figure only illustrate one), the end face of this recess 26 becomes the stop component 27 facing to the front end of flexure strip 25.Therefore, if described magnetic head 14 is inserted the rectangle tubular recess 17 of magnetic head maintenance body 13 from its rear end one side, magnetic head 14 rear end parts just with the flexure strip sliding contact, make flexure strip 25 bendings, magnetic head 14 1 arrives the precalculated position, and the front end of flexure strip 25 just is crimped onto on the bottom surface of recess 26.Under this state, lean on the elastic-restoring force of flexure strip 25 that the outside surface of magnetic head 14 is squeezed on reference field 18a, the 18b of rectangle tubular recess 17, magnetic head 14 just has been maintained on the preposition.And, connect by the front end of flexure strip 25 and the bumping of end face (stop component 27) of recess 26, can prevent that magnetic head 14 from being pulled out from rectangle tubular recess 17.
As top based on embodiment described in detail, two inside surfaces of adjacency of the rectangle tubular recess that the present invention is provided with on magnetic head keeps body or flexure strip integrally is set at magnetic head two outside surfaces corresponding with these inside surfaces make these flexure strips and corresponding the opposing party's two faces formation elasticity crimping.Because these flexure strips do not influence magnetic head and are inserted among the described rectangle tubular recess, so with pointing once keeping in the body by being installed to magnetic head magnetic head.And mounted like this magnetic head can remain on fixing position by the elasticity crimping of flexure strip front end and another parts surface.Therefore, improved the operability that magnetic head is installed, and can improve the work efficiency of installing.In addition, because flexure strip and bumping of stop component connect, can prevent to be pulled out the danger that does not have meeting because of carelessness that magnetic head is pulled out the recess of magnetic head from magnetic head maintenance body.
Fig. 1 and Fig. 2 represent the first embodiment of the present invention in the accompanying drawing of this instructions, and Fig. 1 is a longitudinal section, and Fig. 2 is the oblique view that decomposes; Fig. 3 is the part longitudinal section of explanation the 2nd embodiment; Fig. 4 is the longitudinal section of the example of expression prior art; Fig. 5 is the partial cross section figure of other example of explanation prior art.
Claims (1)
1, a kind of counter-rotating magnetic head mounting structure of automatic reverse type sound-track engraving apparatus, wherein, two-channel magnetic head (14) is placed on the magnetic head that rotation is supported on the magnetic head base (11) freely and keeps in the body (13), described magnetic head keeps the conversion of body (13) along with the tape running direction, with the axle perpendicular to magnetic head (14) and tape phase-contact surface is 180 ° of center counter-rotatings, it is characterized in that: described magnetic head keeps body (13) to be provided with the rectangle tubular recess that can allow magnetic head (14) insert from its place ahead, the flexure strip (21) of two surface elastic crimping of its front end and corresponding the opposing party integrally is being set on the either party in the middle of two outside surfaces of two inside surfaces of the adjacency of this rectangle tubular recess (17) or the magnetic head corresponding with these inside surfaces, on two faces of the opposing party that flexure strip is not set, extract direction along magnetic head stop component (19c) facing to the front end of the flexure strip of correspondence is being set, (19d); Rely on the elastic deformation of described flexure strip (21) to allow magnetic head to insert described rectangle tubular recess (17), and rely on described flexure strip (14) and bumping of described stop component (19a), (19b) to fetch to prevent magnetic head (14) from from rectangle tubular recess (17), extracting.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19856887U JPH01103012U (en) | 1987-12-26 | 1987-12-26 | |
| JP198568/87 | 1987-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1035574A CN1035574A (en) | 1989-09-13 |
| CN1009400B true CN1009400B (en) | 1990-08-29 |
Family
ID=16393345
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88108713 Expired CN1009400B (en) | 1987-12-26 | 1988-12-20 | Arranging structure of inverting heads for auto-inverting recorder |
| CN88221305U Withdrawn CN2055976U (en) | 1987-12-26 | 1988-12-20 | Reverse magnetic head assembly construction for automatic reverse recorder |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88221305U Withdrawn CN2055976U (en) | 1987-12-26 | 1988-12-20 | Reverse magnetic head assembly construction for automatic reverse recorder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH01103012U (en) |
| CN (2) | CN1009400B (en) |
| GB (1) | GB2214343B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT396854B (en) * | 1991-12-11 | 1993-12-27 | Philips Nv | MAGNETIC TAPE DEVICE WITH A MAGNETIC HEAD UNIT PROVIDED FOR SCANNING A MAGNETIC TAPE |
| JP2908953B2 (en) * | 1993-02-18 | 1999-06-23 | アルプス電気株式会社 | Magnetic head unit and magnetic head device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6013321A (en) * | 1983-06-30 | 1985-01-23 | Nippon Chemicon Corp | Reversing device of magnetic head |
-
1987
- 1987-12-26 JP JP19856887U patent/JPH01103012U/ja active Pending
-
1988
- 1988-04-18 GB GB8809103A patent/GB2214343B/en not_active Expired - Fee Related
- 1988-12-20 CN CN 88108713 patent/CN1009400B/en not_active Expired
- 1988-12-20 CN CN88221305U patent/CN2055976U/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB8809103D0 (en) | 1988-05-18 |
| GB2214343A (en) | 1989-08-31 |
| CN2055976U (en) | 1990-04-11 |
| GB2214343B (en) | 1991-09-18 |
| CN1035574A (en) | 1989-09-13 |
| JPH01103012U (en) | 1989-07-12 |
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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 | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 | ||
| 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 |