CN1497568A - Reel brake assembly for tape recording/read equipment - Google Patents
Reel brake assembly for tape recording/read equipment Download PDFInfo
- Publication number
- CN1497568A CN1497568A CNA2003101010163A CN200310101016A CN1497568A CN 1497568 A CN1497568 A CN 1497568A CN A2003101010163 A CNA2003101010163 A CN A2003101010163A CN 200310101016 A CN200310101016 A CN 200310101016A CN 1497568 A CN1497568 A CN 1497568A
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- CN
- China
- Prior art keywords
- detent
- tape transport
- tep reel
- brake assembly
- disc brake
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Abstract
A reel brake assembly for a magnetic recording/reading apparatus comprises a sub-deck slidably disposed on a main-deck in which a head drum is mounted, a reel table rotatably disposed in the sub-deck, for selectively driving a tape reel of a tape cassette, a brake unit pivotably disposed on the sub-deck, for selectively braking the reel table, and a cam gear rotated by a driving force of a driving motor, for moving the sub-deck to load and unload the sub-deck. The brake unit is selectively brought into contact with and separated from the reel table in relation to movement of the cam gear when the sub-deck is loaded and unloaded.
Description
The application requires to enjoy in the right of priority of the korean patent application No.2002-62299 that submitted on October 12nd, 2002, here by full content is incorporated into the present invention with reference to inciting somebody to action wherein.
Technical field
The present invention relates to a kind of magnetic recording/fetch equipment, especially relate to a kind of disc brake assembly (a reel brake assembly) that is used for magnetic recording/fetch equipment, in order to rotatablely moving of control tep reel platform (a reel table).
Background technology
Magnetic recording/fetch equipment can be on the recording medium such such as tape recorded information, and can read the information that is write down.Such as, VCR (video cassette recorder) and field camera are exactly magnetic recording/fetch equipment.
A kind of magnetic recording/fetch equipment comprises: a main tape transport mechanism (a main-deck) rotatably is provided with a head drum on it; A secondary tape transport (a sub-deck) is arranged on the main tape transport mechanism movably, and in order to reciprocatingly slide, a pair of tep reel platform be can be rotatably set on the secondary tape transport, is used for driving the tape reel of a magnetic tape cassette; And a disc brake assembly, be used to stop tep reel platform generation additional movements.
The disc brake assembly can stop tep reel platform generation additional movements, and additional movements is because the inertia that is produced when the tep reel platform stops the rotation in stop mode causes, and can cause some tape unnecessarily to be confessed or twitch.As shown in fig. 1, the disc brake assembly comprises one first detent 4 and one second detent (not shown), is used to make right side and left side tep reel platform to stop the rotation.First detent 4 that is to say that corresponding to left side tep reel platform near the tep reel platform of supply side, its work is relevant along the tangential movement of main tape transport mechanism 1 with main slider 2.That is to say that main slider 2 is rotated by the driving force that sends from CD-ROM drive motor, and occurred level moves and cam pack 3 collaborative works, be used for loading and unloading described secondary tape transport.When secondary tape transport was loaded, main slider 2 moved to the left, contacted and promote contact pin 4a and 4b on first detent 4.Then, along with first detent 4 is subjected to the promotion of main slider 2 and separates with the tep reel platform, start broadcast state, tape is discharged from magnetic tape cassette under this state.
When secondary tape transport was unloaded, main slider 2 moved to the right, and first detent 4 turns back to the original position, came to come in contact with the tep reel platform, retrained rotatablely moving of tep reel platform thus.
In order to drive brake assemblies, main slider 2 must fully extend to the left, promptly extends to the degree that it is contacted with first detent 4.Therefore, main slider 2 occupies a same big space, space that occupies with described development length, and needs more manufactured materials, causes cost to increase.But, consider current demand to record/fetch equipment, promptly compact small and exquisite and weight is lighter, desirable is that main slider 2 has less length and width.
Summary of the invention
In order to solve the aforementioned and other problem that is associated with conventional equipment, the present invention is researched and developed.Therefore, the object of the present invention is to provide a kind of disc brake assembly that is used for record/fetch equipment, have improved simplified structure and working method.
Aforementioned and other purpose is basically by providing a kind of like this disc brake assembly that is used for magnetic recording/fetch equipment to be achieved, promptly this disc brake assembly comprises: secondary tape transport, be slidably disposed on the main tape transport mechanism, on described main tape transport mechanism, head drum be installed; The tep reel platform be can be rotatably set on the secondary tape transport, is used for optionally driving the tape reel of magnetic tape cassette; Brake unit is arranged on the secondary tape transport pivotly, is used for optionally braking the tep reel platform; And cam pack, rotate by the driving force of CD-ROM drive motor, with loading and unload this pair tape transport so that secondary tape transport is moved.Specifically, corresponding to the motion of described cam pack when secondary tape transport is loaded and unloads, described brake unit optionally contacts with the tep reel platform and separates.
Preferably, described brake unit comprises: first detent be can be rotatably set on the secondary tape transport, and is suitable for coming in contact with the tep reel platform and separating; Spring is used for first detent is compressed, so that this first detent and tep reel platform come in contact; And second detent, the coaxial setting of relative first detent is used for together pivoting so that first detent separates with the tep reel platform along a direction with first detent, and comes in contact the independent rotation in ground with the tep reel platform in the opposite direction.This brake unit also comprises torsion spring, is used for second detent is compressed, so that make second detent and tep reel platform come in contact.
In addition, preferably, described first and second detents have first and second pilot pins that come out from its bottom projection separately, are used for being guided when coming in contact with described cam pack.
In addition, described cam pack can preferably have the guide groove that forms along the sense of rotation of this cam pack, is used for order and guides described first and second pilot pins.
Have, described cam pack can preferably have along the guide groove of sense of rotation portion formed thereon, is used to guide described brake unit again.
For brake unit, preferably, when loading described secondary tape transport, brake unit is guided along guide groove, and when the described secondary tape transport of unloading, brake unit separates with guide groove.
Description of drawings
By the reference accompanying drawing specific embodiment of the present invention is described, aforementioned purpose of the present invention and technical characterictic will become cheer and bright, wherein:
Fig. 1 and 2 is two floor map, shows a disc brake assembly that is used for conventional magnetic recording/fetch equipment; And
Fig. 3 and 4 is two floor map, shows a disc brake assembly that is used for magnetic recording/fetch equipment according to one embodiment of the invention;
Fig. 5 is a floor map, shows one and is used for the disc brake assembly of magnetic recording/fetch equipment according to one embodiment of the invention, and wherein secondary tape transport 20 is in stress state.
Embodiment
In more detail a disc brake assembly that is used for magnetic recording/fetch equipment according to one embodiment of the invention is described below with reference to accompanying drawings.
Fig. 3 is a floor map, shows a magnetic recording/fetch equipment that has adopted according to disc brake assembly of the present invention.
With reference to Fig. 3, the disc brake assembly that is used for magnetic recording/fetch equipment comprises: a main tape transport mechanism 10, and this main tape transport mechanism 10 is provided with a head drum 11; A secondary tape transport 20 is slidably disposed on the main tape transport mechanism 10; A pair of tep reel platform 21 and 23 is used to drive a magnetic tape cassette that is positioned on the secondary tape transport 20; A brake unit 30; And cam pack 40.It is pointed out that Fig. 3 shows the unloaded state of secondary tape transport 20.
Main tape transport mechanism 20 has a pair of base for post unit 12 and 13 (a pair of pole base units), be used for right side and the left side of tape guidance to head drum 11, thereby make tape be wound onto along with its running head drum 11 around.Relevant with the motion of cam pack 40, base for post unit 12 and 13 is respectively along the guide rail 14 and 15 to-and-fro movements that are arranged on the main tape transport mechanism 10.Main tape transport mechanism 10 can have a plurality of guide pillar (not shown), is used to guide the running of tape on main tape transport mechanism 10.
And main tape transport mechanism 10 has a CD-ROM drive motor 16, is used to provide a driving force to make base for post unit 12 and 13 to-and-fro movements, and loads and unload secondary tape transport 20 thus.The driving force of CD-ROM drive motor 16 is transmitted gear 17 and 18 via a plurality of driving forces and is passed to cam pack 40.
Be accompanied by the rotation of cam pack 40, secondary tape transport 20 is loaded on the main tape transport mechanism 10 along direction A, is perhaps unloaded in the opposite direction.Secondary tape transport 20 has paired tep reel platform 21 and 23, is used for driving the tape reel of magnetic tape cassette.The tep reel platform 21 that is positioned at the left side is used to feed out the tape of coiling, and is known as the supply tep reel.The tep reel platform 23 that is positioned at the right side is used for and will winds up from supplying with the next tape of tep reel feed, and is known as take-up reel.Tep reel platform 21 and 23 driving forces that send by the driven motor from be arranged at main tape transport mechanism 10 19 drive.
Brake unit 30 is arranged on the secondary tape transport 20 pivotly, is used for optionally controlling the rotation of tep reel platform 21.Brake unit 30 comprises first detent 31, second detent 33, volute spring 35 and torsion spring 37.In the present embodiment, brake unit 30 is supported by tep reel lid 50 (a ree1 cover) that are arranged on secondary tape transport 20 tops as shown in Figure 4 like that.That is to say that first detent 31 is arranged on the roll coil of strip lid 50 pivotly, one end thereof and tep reel platform 21 come in contact, and simultaneously along with first detent 31 pivots, separate with tep reel platform 21 this end.Volute spring 35 is connected with the other end and the tep reel lid 50 of first detent 31, and first detent 31 is compressed, thereby the detent 31 of winning is come in contact with tep reel platform 21.Second detent 33 and the 31 coaxial settings of first detent, and pivot optionally with tep reel platform 21 on gear teeth 21a come in contact or separate.A torsion spring 37 is set between second detent 33 and first detent 31.37 pairs second detents of this torsion spring 33 carry out elastic compression, so that make the gear teeth 21a on second detent 33 and the tep reel platform 21 come in contact.Tep reel lid 50 also has a brake unit 70, is used to control the rotation of another tep reel platform 23.Because brake unit 70 can be the common brake assemblies that works together with main slider 80, so will save the more detailed description to brake unit 70.
Such as will be described below, brake unit 30 and cam pack 40 collaborative works.First detent 31 and second detent 33 have the first pilot pin 31a and the second pilot pin 33a that come out from its bottom projection separately respectively.And secondary tape transport 20 has the guide hole (not shown) that forms in wherein, is used to allow the first pilot pin 31a and the second pilot pin 33a to pass wherein.
Cam pack 40 be can be rotatably set in the main tape transport mechanism 10.This cam pack 40 is rotated by the driving force that sends from CD-ROM drive motor 16, and has the base for post of making unit 12 and 13 reciprocating gear teeth.And cam pack 40 has one and is formed at the guide groove 41 that its underpart has reservation shape, is used to guide main slider 80 horizontal reciprocating movement on main tape transport mechanism 10.
And cam pack 40 has the guide groove 43 of another one portion disposed thereon, is used for mobile brake unit 30.Another guide groove 43 is along the predetermined length of the circumferential extension of cam pack 40, changes apart from the length of cam pack 40 rotation centers.
In another guide groove 43, be inserted with the first pilot pin 31a and the second pilot pin 33a.The first pilot pin 31a and the second pilot pin 33a are subjected to the cam guiding so that first detent 31 and second detent 33 are moved.That is to say that come when direction A loads secondary tape transport 20 when cam pack 40 rotates, the first pilot pin 31a and the second pilot pin 33a are subjected to level and smooth guiding on another guide groove 43.
Another guide groove 43 comprises: the first guidance part 43a of a curve shape is used for the first pilot pin 31a is guided; With one second guidance part 43b, deviate from the outside projection of rotation center of cam pack 40 from the first guidance part 43a.The second guidance part 43b guides and drives the second pilot pin 31b.
To the working method example of disc brake assembly in magnetic recording/fetch equipment according to an embodiment of the invention be described below.
When a magnetic tape cassette (not shown) is installed in the secondary tape transport 20 that is in state shown in Figure 3, utilize the driving action of CD-ROM drive motor 16, secondary tape transport 20 is loaded along direction A.Meanwhile, first detent 31 and second detent 33 come in contact with tep reel platform 21.Cam pack 40 is rotated along direction B, thus secondary tape transport 20 is loaded and mobile simultaneously base for post unit 12 and 13.
When secondary tape transport 20 was loaded as shown in Figure 4 fully, cam pack 40 independently rotated with predetermined angle.At this moment, base for post unit 12 and 13 moves to the right side and the left side of head drum 11, supports tape.Main slider 80 is guided by another guide groove 41 on the cam pack 40, moves to the left side.
When secondary tape transport 20 was mobile fully along direction A, pilot pin 31a and 33a on first detent 31 and second detent 33 were placed in the top of another guide groove 43 on the cam pack 40.
In this state, when cam pack 40 when direction B is rotated, the first pilot pin 31a is led to the first guidance part 43a, makes the detent 31 of winning pivoted.In addition, the second pilot pin 33a is led to the second guidance part 43b, makes that second detent 33 is pivoted.That is to say that first detent 31 separates with tep reel platform 21 with second detent 33.Therefore, tep reel platform 21 rotates freely, thereby is driven by driven motor 19.
Meanwhile, when secondary tape transport 20 was unloaded, cam pack 40 was along being rotated with direction opposite when secondary tape transport 20 is loaded.Therefore, the first pilot pin 31a separates with another guide groove 43 with the second pilot pin 33a, thereby win detent 31 and second detent 33 are come in contact with tep reel volume 21 once more.Secondary tape transport 20 is back to state as shown in Figure 3 thus.
As previously mentioned, be accompanied by the rotation of cam pack 40, brake unit 30 carries out work.Need not to make brake unit carry out work, so the length of main slider 80 can shorten as in the conventional equipment main slider 80 being moved to the left side.The area of plane of main slider 80 and manufactured materials can reduce, and therefore, size can be dwindled.
Although support by tep reel lid 50 as example brake unit 30 in the present embodiment, can not think unique structure.That is to say that in another embodiment, brake unit 30 is set at the top of secondary tape transport 20, but can directly support by secondary tape transport 20 or tep reel lid 50.
Disc brake assembly according among the magnetic recording among aforementioned the present invention/fetch equipment embodiment is accompanied by the rotation of cam pack, and reel stopper carries out work.
Owing to need not to use main slider to make reel stopper carry out work, so structure and main slider can be simplified.
And; although described specific embodiment of the present invention; but those skilled in the art it will be understood that; the present invention will be not limited to described embodiment, but can carry out multiple changes and improvements to it within the technology of the present invention design that limits as claims and protection domain.
Claims (16)
1, a kind of disc brake assembly that is used for magnetic recording/fetch equipment comprises:
Secondary tape transport is slidably disposed on the main tape transport mechanism, on described main tape transport mechanism head drum is installed;
The tep reel platform be can be rotatably set on the secondary tape transport, and is suitable for optionally driving the tape reel in the magnetic tape cassette;
Brake unit is arranged on the secondary tape transport pivotly, and is suitable for optionally braking the tep reel platform; And
Cam pack, be suitable for rotating by the driving force of CD-ROM drive motor, with loading and unload this pair tape transport so that secondary tape transport is moved, corresponding to the motion of described cam pack when secondary tape transport is loaded and unloads, described brake unit optionally contacts with the tep reel platform and separates thus.
2, the disc brake assembly described in claim 1, wherein, described brake unit comprises:
First detent be can be rotatably set on the secondary tape transport, and is suitable for contacting with the tep reel platform and separating;
Spring is suitable for first detent is compressed, so that make this first detent and tep reel platform come in contact; And
Second detent, the coaxial setting of relative first detent, and be suitable for together pivoting so that first detent separates with the tep reel platform, and be suitable for coming in contact the independent rotation in ground with the tep reel platform in the opposite direction along a direction with first detent.
3, the disc brake assembly described in claim 2, wherein, described brake unit also comprises torsion spring, this torsion spring is suitable for applying acting force to second detent, so that make second detent and tep reel platform come in contact.
4, the disc brake assembly described in claim 3, wherein, described torsion spring is suitable for applying acting force to second detent, so that make the gear parts on this second detent and the tep reel platform come in contact.
5, the disc brake assembly described in claim 2, wherein, described first and second detents have first and second pilot pins that come out from its bottom projection separately respectively, and these pilot pins are suitable for being guided when coming in contact with cam pack.
6, the disc brake assembly described in claim 5, wherein, described cam pack has the guide groove that forms along the sense of rotation of this cam pack, and this guide groove is suitable for order and guides first and second pilot pins.
7, the disc brake assembly described in claim 1, wherein, described cam pack has along the guide groove of the sense of rotation portion formed thereon of this cam pack, and this guide groove is suitable for brake unit is guided.
8, the disc brake assembly described in claim 7, wherein, when loading described secondary tape transport, brake unit is suitable for being guided along guide groove, and when the described secondary tape transport of unloading, brake unit is suitable for separating with guide groove.
9, a kind of disc brake assembly that is used for magnetic recording/fetch equipment, described magnetic recording/fetch equipment comprises: secondary tape transport, be slidably disposed on the main tape transport mechanism, on described main tape transport mechanism, head drum is installed; The tep reel platform be can be rotatably set on the secondary tape transport, and is suitable for optionally driving the tape reel in the magnetic tape cassette; And cam pack, be suitable for rotating by the driving force of CD-ROM drive motor, with loading and unload this pair tape transport so that secondary tape transport is moved, described disc brake assembly comprises:
Brake unit, be arranged on pivotly on the secondary tape transport, and be suitable for optionally braking the tep reel platform, thus corresponding to the motion of described cam pack when secondary tape transport is loaded and unloads, described brake unit optionally contacts with the tep reel platform and separates.
10, the disc brake assembly described in claim 9, wherein, described brake unit comprises:
First detent be can be rotatably set on the secondary tape transport, and is suitable for contacting with the tep reel platform and separating;
Spring is suitable for first detent is compressed, so that make this first detent and tep reel platform come in contact; And
Second detent, the coaxial setting of relative first detent, and be suitable for together pivoting so that first detent separates with the tep reel platform, and be suitable for coming in contact the independent rotation in ground with the tep reel platform in the opposite direction along a direction with first detent.
11, the disc brake assembly described in claim 10, wherein, described brake unit also comprises torsion spring, this torsion spring is suitable for applying acting force to second detent, so that make second detent and tep reel platform come in contact.
12, the disc brake assembly described in claim 11, wherein, described torsion spring is suitable for applying acting force to second detent, so that make the gear parts on this second detent and the tep reel platform come in contact.
13, the disc brake assembly described in claim 10, wherein, described first and second detents have first and second pilot pins that come out from its bottom projection separately respectively, and these pilot pins are suitable for being guided when coming in contact with cam pack.
14, the disc brake assembly described in claim 13, wherein, described cam pack has the guide groove that forms along the sense of rotation of this cam pack, and this guide groove is suitable for order and guides first and second pilot pins.
15, the disc brake assembly described in claim 9, wherein, described cam pack has along the guide groove of the sense of rotation portion formed thereon of this cam pack, and this guide groove is suitable for brake unit is guided.
16, the disc brake assembly described in claim 15, wherein, when loading described secondary tape transport, brake unit is suitable for being guided along guide groove, and when the described secondary tape transport of unloading, brake unit is suitable for separating with guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101010163A CN1497568A (en) | 2002-10-12 | 2003-10-10 | Reel brake assembly for tape recording/read equipment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR62299/2002 | 2002-10-12 | ||
| CNA2003101010163A CN1497568A (en) | 2002-10-12 | 2003-10-10 | Reel brake assembly for tape recording/read equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1497568A true CN1497568A (en) | 2004-05-19 |
Family
ID=34256393
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101010163A Pending CN1497568A (en) | 2002-10-12 | 2003-10-10 | Reel brake assembly for tape recording/read equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1497568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004933B (en) * | 2006-01-21 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Brake mechanism, and media recording / playing back device possessing the brake mechanism |
-
2003
- 2003-10-10 CN CNA2003101010163A patent/CN1497568A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101004933B (en) * | 2006-01-21 | 2010-09-29 | 鸿富锦精密工业（深圳）有限公司 | Brake mechanism, and media recording / playing back device possessing the brake mechanism |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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