CN1039557C - Magnetic recording and playing apparatus - Google Patents
Magnetic recording and playing apparatus Download PDFInfo
- Publication number
- CN1039557C CN1039557C CN92114403A CN92114403A CN1039557C CN 1039557 C CN1039557 C CN 1039557C CN 92114403 A CN92114403 A CN 92114403A CN 92114403 A CN92114403 A CN 92114403A CN 1039557 C CN1039557 C CN 1039557C
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- CN
- China
- Prior art keywords
- support
- pcb
- circuit board
- printed circuit
- magnetic recording
- 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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- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
In order to make a position for an magnetic recording and reproducing device and the housing which is relative to a frame. The device possesses a 1st guide member for positioning a printed board underneath a mechanism and a mechanism chassis into a frame and a 2nd guide member for positioning the mechanism chassis to the printed board underneath the mechanism. The mechanism chassis is guided by the 1st guide member to the printed board underneath the mechanism without damaging tall electric parts. Then, a positional relationship between the printed board underneath the mechanism and the mechanism chassis is decided by the 2nd guide member.
Description
The present invention relates to a kind of magnetic recording and playback (reproduction) equipment, more specifically, relate to a kind of technology that can significantly improve its assembly working efficient.
The magnetic recording/reproducing apparatus of VTR (video tape recorder) and DAT (dynamic address code translator) and so on general mainly comprises three groups of devices: the machinery group, and tape can be drawn from tape drum and is wound up on the head drum of a rotation, by it to form a tape operational system; Electric group, it has the control circuit that is used for handling the treatment circuit of tracer signal and replay signal and is used for carrying out various controls; Frame set is used for putting and bears above-mentioned machinery and organizes and electric group.
Referring to Fig. 6, its perspective and schematically shown above-mentioned this traditional magnetic recording/reproducing apparatus, machinery group wherein comprises for the CD-ROM drive motor (not shown) of being with side spool platform or frame 2, strip winding side scroll rack 3, rotary head cylinder 4, capstan 5, pinch roller 6 and being used for driving these parts, their collaborative works move passage to set up a tape, and are installed on the support 1.On this casing, also be equipped with and comprising light-emitting component 7 and a pair of light-receiving member 8 detecting the pick-up unit of tape front end and tail end, and the pick-up unit 9 that is located at the existence of the catch pawl that is used for preventing wrong demagnetization on this frame in order to detection.
Electric group then comprises and is installed in each circuit (not shown) with resistor, transistor and integrated circuit (IC) or the like that is on the printed circuit board (PCB) 10 of machinery group below; Frame set then comprises a pair of guide 12 that is used for placing therein and keeps support 1 and foregoing circuit plate 10 that is installed on the framework 11.
Above-mentioned each parts make up in the following manner: printed circuit board (PCB) 10 is inserted in the guide 12 that is located on the framework 11 successively with support 1.In this assembling process, all lead (not shown)s that are laid under the support 1 then are electrically connected on the printed circuit board (PCB) 10.The assembly working of so just finishing or be through with.
But, constitute the machinery group of above-mentioned traditional magnetic recording apparatus and electric group and entwine mutually.This makes that the lead in the support 1 is complicated.In assembling process, need be being electrically connected with circuit board 10 on the various position of a large amount of leads in support 1.This just makes assembly working extremely complicated or loaded down with trivial details, and in addition, robot one class automaton also is difficult to use in such assembling operation.
In addition, also be difficult to electrical equipment is moved on on the printed panel 10 from support 1, this is owing to terminal detecting device 7,8 and is used for preventing that the pick-up unit 9 of wrong demagnetization all has higher height.
Purpose of the present invention promptly be to eliminate in traditional magnetic recording/reproducing apparatus intrinsic above-mentioned variety of problems, thereby one object of the present invention is that a kind of like this magnetic recording/reproducing apparatus is provided, machinery group wherein and electric group are independent of each other as much as possible, can realize less electrical connection thus and make simple and convenient assembly, and the magnetic recording/reproducing apparatus that constitutes like this can adopt robot and so on to assemble automatically.
For this purpose, the invention provides following a kind of magnetic recording/reproducing apparatus, it comprises:
Support is provided with the mechanical hook-up that is used for determining tape operation passage above it, draw tape and with being about on its head drum that is wound up into a rotation from tape drum along this passage;
Printed circuit board (PCB), it is connected to one and is used for handling on the treatment circuit of electric signal, is assembled into above-mentioned support following time at this printed circuit board (PCB) and is installed on each element on this plate and promptly protrudes on this support;
The framework of aforementioned printed circuit board (PCB) and support is installed above it;
First guide piece is used for this printed circuit board (PCB) and support location positioning on aforesaid frame;
It is characterized in that also comprising:
Second guide piece is used for this plate support is navigated on the printed circuit board (PCB) by the precalculated position;
Wherein, can avoid damaging said each element of being guided by described first guide piece that protrudes into above the support when described support is being installed on the P.e.c., the position relation between this printed circuit board (PCB) and support is then determined by aforementioned second guide piece.
This magnetic recording/reproducing apparatus preferably includes a plurality of terminals on the support and web members on a collection of printed circuit board (PCB) that is arranged on support below of being laid in, and they were electrically connected to printed-wiring board (PWB) by second guide piece before support is finished relative positioning.
Utilize the said apparatus form, just can make mechanical organ group and the electrical equipment group of forming magnetic recording/reproducing apparatus separate as far as possible.Can simplify the wiring on the support in view of the above and make support and its below circuit web member number between printed circuit board (PCB) reduces to minimum.Remove this, can also realize its electrical connection with very easy mode.
By top description as can be known, just can make said mechanical organ and electrical equipment separate as far as possible according to the present invention.Thereby can simplify in the support lead lays and makes the electrical connector number between printed-wiring board (PWB) and support reduce to minimum.So just can further improve the work efficiency in the assembling significantly.In addition, by robotization, also can carry out the number of assembling steps of a series of manufacturing magnetic recordings and replay device, thereby can further improve assembly working efficient.
In the accompanying drawings:
Fig. 1 is an exploded perspective illustration, schematically illustrates the structure of an embodiment of the present invention's magnetic recording/reproducing apparatus;
Fig. 2 is a planimetric map, has wherein shown support shown in Figure 1 and the printed circuit board (PCB) under it from the top;
Fig. 3 is a planimetric map, has wherein shown support shown in Figure 1 and the printed circuit board (PCB) under it from the rear;
Fig. 4 is a planimetric map, has shown second guide member arrangement shown in Figure 1;
Fig. 5 A and 5B are drawing in side sectional elevation, have shown the structure of second guide shown in Figure 1;
Fig. 6 is an exploded perspective illustration, has schematically shown the structure of a traditional magnetic recording/reproducing apparatus.
Referring to accompanying drawing 1 to 5 one embodiment of the present of invention are described below.Fig. 1 is the schematic part decomposition diagram of structure of an embodiment of magnetic recording/reproducing apparatus of the present invention.In this accompanying drawing, identical person among Fig. 6 of all parts and the magnetic recording/reproducing apparatus that is used for illustrating tradition all is marked with identical reference number number, and omits the detailed description of this base part.
At first referring to Fig. 1, such as being used for the light-emitting component 7 of detecting tape head end and tail end and the electrical equipment of the prominent shape of height of a pair of light-receiving member 8, and be used for detecting element 9 that prevents wrong demagnetization or the like, all be installed on the printed circuit board (PCB) 10, be related to all mechanical organs of establishing magnetic head operation passage so that allow, all be installed in as much as possible on the support 1 of this printed circuit board (PCB) top.In addition, the prominent light-emitting component 7 of above-mentioned height protrudes through the through hole 1c that a diameter is a bit larger tham light-emitting component 7 on the support 1, and this through hole then is formed on the precalculated position of casing 1.The size of the printed circuit board (PCB) 10 of support 1 below is big slightly than support 1, thereby can make support 1 be positioned to allow this butt joint photo detector 8 and detecting element 9 extend along the side of support 1 and protrude on the support 1.
Referring now to accompanying drawing, the as above assemble method of the magnetic recording/reproducing apparatus of layout is described.At first printed circuit board (PCB) 10 is inserted on a pair of first guide 12 that is installed on the framework 11, makes printed circuit board (PCB) 10 location.In this embodiment, this cooperates with a pair of through hole 10a and 10b respectively first guide 12, and printed circuit board (PCB) 10 can accurately be located.But the present invention is not limited to this concrete arrangement, and can take other measure that this circuit board is accurately located, as an example of this respect, can a collection of lug be installed on framework 11, make it four corners on printed circuit board (PCB) 10 and fix this circuit board and get final product.
Because any one in this first guide 12 all sets all high prominent shape elements on printed circuit board (PCB) 10 (for example element 7,8, with 9) for high, and since be used for the through hole 1a, the 1b that match with first guide 12 diameter all than the footpath degree of this first guide 12 for big, so can before these high prominent elements and support 1 contact, support 1 be placed on the precalculated position.So just, can in guiding support 1, prevent to damage the prominent element of all height.
But because support 1 can not only rely on first guide 12 accurately to locate; so adopt one will guarantee that support 1 can and make it to keep motionless with respect to printed circuit board (PCB) 10 location in second guide of addressing later 13 with a pair of first and second bearing 13a and 13b.Under this device form, the web member that is laid in the support 1 just is electrically connected after finishing positioning operation by second guide 13 mutually with terminals (not showing bright).So just can carry out and comprise, thereby can significantly improve work efficiency wiring each subsequent step of step that is electrically connected in the mode of robotization.
Make support 1 location below with reference to Fig. 2 to 5 explanation with second guide 13.Fig. 2 is for observing the top plan view of these embodiment 2 supports and printed circuit board (PCB) from the top, Fig. 3 observes the support of this embodiment and the top plan view of printed circuit board (PCB) from the rear, and Fig. 4 is the top view that shows second guide member arrangement of bright this embodiment.Fig. 5 A and 5B then are the drawings in side sectional elevation that shows second guide member arrangement of bright this embodiment.
Referring to Fig. 2 to 5, be located at a pair of associated gear 15 on support 1 lower surface and 16 axle 15a and 16a, insert first and second bearing 13a and the 13b that are located on second guide 13 respectively and also led by it, in view of the above, support 1 is able to accurately locate with respect to printed-wiring board (PWB) 10.
Specifically, shown in Fig. 5 A and 5B, relevant gear 15 is respectively first guide 12 with 16 axle 15a and 16a and guides, and is a bit larger tham among the pilot hole 13c and 13d of the diameter that is located at first and second bearing 13a and the interior corresponding axis of 13b in fact and be inserted into diameter.Therefore, when support 1 intercalation is on first guide 12, axle 15a and 16a just is respectively pilot hole 13c and 13d guides.Along with the further insertion of support 1, axle 15a and 16a just introduce respectively among pilot hole 13c and the 13d.Like this, axle 15a and 16a just respectively insertion be formed at a 15a and 16a be able among the pilot hole 13e and 13f at final place in place, can allow a 15a thus, 16a or gear 15,16 are located accurately.
The size of pilot hole 13c here and 13d and pilot hole 13e and 13f, selected according to the relation of for example 13d＞13c＞13f＞13e.Adopt this kind collocation form, just can reduce scale error, positioning error and other similar error satisfactorily with respect to this second guide and gear 15a and 15b or the like.
With regard to the foregoing description, be located in the gear that is used in this magnetic recording/reproducing apparatus the driving force of a driven wheel 17 passed to for band side scroll rack gear 2a and strip winding side scroll rack gear 3a at several, adopting a 15a and the 16a of this associated gear 15 and 16 is in order to reduce the number of keeper.But the present invention is not limited to above-mentioned concrete device form.For example, can constitute the relief form to the various elements on the support 1, make it to reach the location purpose, just can obtain the advantage similar to aforementioned person from the lower surface protrusion.
Claims (2)
1. magnetic recording/reproducing apparatus comprises:
Support is provided with the mechanical hook-up that is used for determining tape operation passage above it, draw tape and with being about on its head drum that is wound up into a rotation from tape drum along this passage;
Printed circuit board (PCB), it is connected to one and is used for handling on the treatment circuit of electric signal, is assembled into above-mentioned support following time at this printed circuit board (PCB) and is installed on each element on this plate and promptly protrudes on this support;
The framework of aforementioned printed circuit board (PCB) and support is installed above it;
First guide piece is used for this printed circuit board (PCB) and support location positioning on aforesaid frame;
It is characterized in that also comprising
Second guide piece is used for this plate support is navigated on the printed circuit board (PCB) by the precalculated position;
Wherein, can avoid damaging said each element of being guided by described first guide piece that protrudes into above the support when described support is being installed on the P.e.c., the position relation between this printed circuit board (PCB) and support is then determined by aforementioned second guide piece.
2. magnetic recording/reproducing apparatus as claimed in claim 1 is characterized in that being laid in a plurality of terminals on the support and is located at a plurality of connectors on the printed-wiring board (PWB) after this printed circuit board (PCB) and casing are finished the location by second guide, is electrically connected mutually.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14398292A JPH05342833A (en) | 1992-06-04 | 1992-06-04 | Magnetic recording and reproducing device |
| JP143982/92 | 1992-06-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1079576A CN1079576A (en) | 1993-12-15 |
| CN1039557C true CN1039557C (en) | 1998-08-19 |
Family
ID=15351567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN92114403A Expired - Fee Related CN1039557C (en) | 1992-06-04 | 1992-12-15 | Magnetic recording and playing apparatus |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH05342833A (en) |
| CN (1) | CN1039557C (en) |
| ZA (1) | ZA929049B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809115A (en) * | 1987-07-17 | 1989-02-28 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus |
| EP0333378A2 (en) * | 1988-03-15 | 1989-09-20 | Mitsubishi Denki Kabushiki Kaisha | Magnetic tape recording and playback device |
-
1992
- 1992-06-04 JP JP14398292A patent/JPH05342833A/en active Pending
- 1992-11-23 ZA ZA929049A patent/ZA929049B/en unknown
- 1992-12-15 CN CN92114403A patent/CN1039557C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809115A (en) * | 1987-07-17 | 1989-02-28 | Hitachi, Ltd. | Magnetic recording and reproducing apparatus |
| EP0333378A2 (en) * | 1988-03-15 | 1989-09-20 | Mitsubishi Denki Kabushiki Kaisha | Magnetic tape recording and playback device |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA929049B (en) | 1993-05-19 |
| CN1079576A (en) | 1993-12-15 |
| JPH05342833A (en) | 1993-12-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| 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 |