WO1984003790A1

WO1984003790A1 - Magnetic recording and reproducing apparatus

Info

Publication number: WO1984003790A1
Application number: PCT/JP1984/000113
Authority: WO
Inventors: Satoshi Kikuya; Osamu Zaitsu; Yoshitomo Sakai
Original assignee: Matsushita Electric Ind Co Ltd
Priority date: 1983-03-18
Filing date: 1984-03-19
Publication date: 1984-09-27
Also published as: JPS59171070A

Abstract

A magnetic recording and reproducing apparatus is constructed such that a magnetic tape is drawn by a tape-drawing means out of a tape cassette provided with an opening in a front surface thereof over which the magnetic tape is stretched, and is run wound at a predetermined angle around a cylindrical tape guide drum which rotates and contains a transducer, thereby enabling the transducer to record a signal onto the magnetic tape or reproduce a signal recorded thereon. A cassette mounting part on which the tape cassette is mounted and a drum mounting part on which the tape guide drum is mounted are movable relative to each other. During recording and reproducing, the tape guide drum is advanced into the opening in the tape cassette and is held in this position, in order to reduce the overall size of the apparatus.

Description

Specification

Title of invention-Magnetic recording / reproducing device

Technical field

The invention is a trans dune such as a video tape recorder.

—A magnetic tape drawn out from a tape cassette is wound around a cylindrical tape guide drum with a built-in coil at a predetermined angle: run for t. Record 5 signals on the magnetic tape by the transducer. Or a magnetic recording / reproducing apparatus for reproducing data. In particular, the above-mentioned table cassette is used.] A mechanism for extracting a magnetic table and winding the magnetic table around the tape guide drum is provided. Having.

Background art

In recent years, as a device of this type, a video scanning video recorder (hereafter referred to as VTR) of the helical scan type is becoming widespread. When considering the use of a device, the size of the device itself remains an issue, not to mention its weight.

The limitation of the mechanism of the tape running mechanism of this type of device is mainly the size of the tape cassette and the diameter of the tape guide drum that incorporates a transducer such as a magnetic head. Will be decided. That is, they are placed at a predetermined distance apart on a plane, and then the tape is a tape cassette! 9) The size is determined by the space required for the mechanism for pulling out and winding it around the table guide drum. For example, Fig. 1 schematically shows an example of "U mouth digging" adopted in VTR called "Beta" method. No.

OMPI 1 As shown in the figure, the tape cassette ² is arranged at a predetermined position with respect to the tape guide drum 1. Thereafter, the tape 3 ′ stretched over the front surface of the tape cassette 2 is pulled out by the post 5 inserted into the opening 4 provided in the tape cassette 2. That is, the ring 6 on which the post 5 is planted rotates in the direction of the arrow, and the tape 3 is drawn out with the rotation, forming a running system of the tape 3. is there. In this case, the distance ^ between the tape guide drum 1 and the tape 3 'stretched on the front face of the tape cassette 2 is extremely large, and there is a disadvantage that the device becomes large as a result. On the other hand, in "M loading", which is used in a VTR called "VHS" method, as shown in the figure, it is possible to make the A value slightly smaller as described above from the table link 'mode. However, due to the slack of the front stretching tape when it is mounted on the tape cassette at the specified position! ), The tape comes into contact with the tape guide drum, which may cause tape damage. Therefore, the above value is required to be a predetermined amount. As described above, the size of the mechanism in the conventional device is basically determined by the diameter of the tape guide drum and the size of the tape cassette, and furthermore, the necessary and sufficient value is required for the VTR device. It was not possible to reduce the size of the device.

DISCLOSURE OF THE INVENTION ''

The present invention is proposed in view of this point and can be extremely miniaturized. It provides a magnetic recording / reproducing apparatus. For this purpose, the recording / reproducing apparatus of the present invention has a magnetic tape To place a tape cassette with an opening at the front, the tape cassette mounting part and a tape guide drum with a built-in transducer are installed.

O PI — 2—

A tape cassette mounting portion having a cylindrical drum mounting portion mounted thereon, wherein the tape cassette mounting portion and the drum mounting portion are arranged on a front surface of the tape cassette mounted on the tape cassette mounting portion; The tape guide drum is positioned on the opposite side of the opening through the tape stretched around the tape.

The first relative position, and the stretching position of the tape stretched on the front surface of the tape cassette mounted on the tape cassette mounting portion! ) Is also configured to be relatively movable between a second relative position where the tape guide drum is located at a position where the tape guide drum is located through the tape, and the tape cassette. It is characterized in that it has a tape pulling means for winding the tape at a predetermined angle around the tape guide drum at least in the ^second relative position.

BRIEF DESCRIPTION OF THE FIGURES

Fig. "!" Is a plan view of a conventional VTR with a single

15 FIGS. ² and ³ are perspective views of the tape cassette applied to the present invention, FIG. 4 is a sectional view of the tape cassette, and FIGS. 5, 6, and 7 are embodiments of the present invention. FIG. 8 is a perspective view of the magnetic recording / reproducing apparatus in different operation states, FIG. 8 is a schematic plan view showing a tape running path in the embodiment, and FIG. 9 is an operating path in the embodiment. FIG. 1O is an exploded perspective view showing a configuration of a main part of the embodiment, FIG. 11 is a plan view of the main part, FIG. 1.2 is another embodiment of the present invention. FIG. 13 is an exploded perspective view showing a main part of still another embodiment of the present invention, FIG. 14 is a schematic exploded side view of the main part, and FIG. FIG. 16 is a plan view of the main part, FIG. 16 is an exploded perspective view of the main part, and FIG.

5 1 is a schematic illustration of the essential parts of the same part, and FIG. FIG. 19 is a schematic plan view showing a main part of the embodiment, and FIG. 19 is a schematic plan view showing a main part of still another embodiment. -The best form for carrying out KIKI

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Second to Figure 4 is shows a Tepukase Tsu bets to be used for recording and reproducing equipment according to an embodiment of the present invention, Figure ² is a top

When the tape cassette 8 is not used, it is wound around a pair of built-in reels 12 and 13 (see Fig. 3) and stretched over the front of the tape cassette 8. The tape 9 ′ (indicated by a dashed line in FIG. 3) is covered by a front cover 10 O and a back cover 11 which cover the tape 9 ′ by rotating it. Fig. 3 shows 180 tape cassettes shown in Fig. 2. It is a perspective view of the inverted! ), Vector openings 1 ⁴ drawing the tape 9 'by揷enter the boss bets like on the inside of' is provided the tape 9 that has been stretched to the front on the 'bottom surface 8 of the Tepukase' bets S. Then, when the tape cassette 8 is used in the magnetic recording / reproducing apparatus according to the present invention, as shown in the partial sectional view of FIG. 4, a lid opening means (not shown) provided on the apparatus side. ! ), Front cover 1ο is opened.

The back cover ¹¹ is pivotally supported by a branch support ¹ Ο ′ provided in a part of the front cover 1 ο, and the opening of the tape cassette 8.

The cam guide 部 “! 4” provided on the side portions 14 ′ on both sides in 14 turns the guided end so that the reels 1 2,

The tape 9 ′ wound around 3 is opened without drawing a predetermined trajectory indicated by a dashed line in FIG. 4 without contacting the tape 9 ′ stretched on the front surface.

The opening 14 shown in Fig. 3 is a tape cassette SJ. One —

^ Of the fully opened up to a height corresponding to the thickness, forms a room for post-like Te one to (not shown) or later outsiders de drum ^'2 O (see FIG. 8) invading is there.

5 to FIG. 5 are perspective views showing the appearance of the main body device ¹⁵ and an example of the mounting operation of the tape cassette 8 in the embodiment of the present invention.

First, as shown in Fig. 5, a tape force set ⁸ (in the direction of arrow 1) is inserted into the cassette holder 16 at the raised position (the tape 9 'stretched on the front is forward in the insertion direction). I will search for it. Lowering down the cassette Tsu Tohoru da one 1 6 with a built-in Tepukase Tsu preparative 8 as shown in Figure 6 after its direction of arrow ¹ 8. Since this function is adopted in well-known devices, the detailed configuration shown in the figure is described.

Well, according to the operation described above! The cassette tape 8 comes into contact with a lid opening means such as a bottle or sheet metal provided at a predetermined position of the main unit ¹⁵ and the side plate portion ¹ o ′ of the front lid 1 o. Then Te one Bukase Tsu simultaneously lid 1 O and back cover 1 1 previous bets ₈ is opened, the pinch port Ichira ^-3 5 Ya post-like to be described later with reference to ninth ^{1 1} FIG. ⁽² 2, 24, 25, 2 f, .30, 31, 32, 33) f, the tape is inserted into the opening 14 of the tape 9 ′ which is stretched over the front of the tape cassette 8. You.

It should be noted here that the tape cassette 8 is positioned at a predetermined distance L between the tape guide drum 20 and the tape 9 'stretched in front of the tape cassette 8 as shown in Fig. 9. It is to be mounted in. Well Subsequently, a six by state shown in FIG cell Tsu Tohoruda - 1 6 or by the fact pressed by hand in the direction of the main unit 1 5 part 1 5 'arrows' mark ¹ 9, or as described below motor Depends on the prime mover I? As a result, the apparatus main body ¹⁵ in the recording / reproducing state is extremely compact as shown in FIG.

Next, referring to FIG. S, a tape guide having a built-in magnetic head (not shown) for a running system and a transducer, for example, a VTR, for a tape 9 'to be finally formed (recording or reproducing state). The relative position of the drum 20 and the tape cassette 8 (this corresponds to the second relative position described below) will be described.

First Tepukase Tsu preparative Sabra I and tee click Ryo Dzu pre Ichiru ¹ 2 incorporated in the S, 1 tape ⁹ which is all the time bound to end in ³ Sabra I Li one Honoré ¹ 2 O] 5 supplied respectively predetermined Certificates Rotatable posts 2,22,23,24,25,26,2,2,2,2,2,2,3,2,4,2 are provided perpendicular to the running direction of the rotating or fixed table 9 provided with the angle. The running position is guided to the taper 28, the erase head 29, and to the inclined posts 30, 31, 31, 32, and 33 inclined at predetermined directions and angles with respect to the running direction of the tape 9, respectively. Is done. On the outer periphery of the tape guide drum 2O, the tape guide drum 2O runs along a lead portion 2O '(FIG. 1O) which is provided at a predetermined angle. , 32. The constant speed running of the tape 9 is perpendicular to the running direction of the tape 9, j9, and the cabin 34 and the vintroller 35, which are in the axial direction, hold and rotate the tape 9. Well done.

REA

. " '.

Now, the relative positional relationship between the Tepugai de drum 2 〇 and Tepukase Tsu door S is, to be et al also extra stretched position of the tape ⁹ 'Tepugai de drum ² O is stretched to the front of the Tepukase Tsu door ⁸ The positional relationship is such that it has entered the opening 14 of the tape cassette S via the tape ⁹ .

Hereinafter, Te. One Pugai de drum · ² O and Tepukase Tsu relative position between bets 8, and Figure 9 and the ¹ O a concrete mechanism configured to form a traveling pathway of the tape 9 shown in FIG. ⁸ This will be described with reference to the drawings. In Fig. 10 O, the cassette holder 16 is the same as that shown in Fig. 5, ie, the tape cassette 8 is in the cassette holder 1.

The state of the entry position is shown by a solid line in 16. Also, when the tape cassette ⁸ is built in the cassette holder ¹⁶ and the tape cassette ⁸ is pushed down in the direction of the tape cassette mounting portion 36 on which the tape cassette 8 is mounted, as shown in FIG. The position of is indicated by a dashed line.

First cassette Tsu preparative holder ¹ 6 Te one Bukase Tsu preparative platform ^{3 6} fixed to the side plates 3 7, 3 8 fulcrum 3 is provided to 9, and each one end by the guide hole 4 O And are connected to each other at a fulcrum portion 41, and the other end is provided by a link lever 43, 44 held by a guide hole portion 42 and a fulcrum holding portion 44 ', respectively. The so-called X-link type cassette holder lifting / lowering method is adopted. The lifting force of the cassette holder 16 is obtained by the tension spring 45]). Although not shown, a similar X-link type means is also formed on the side plate 37 side. In addition, the cassette holder is used as a means for opening the tape cassette mounting part 36 of the tape holder 16.

O PI

WI The description of δ- is omitted because it can be performed by a known method. This good Unikase Tsu door holder one 1 tape force by the steering-operation depression of the 6 cell Tsu door载置section ³ of the positioning provided on the 6 height regulation pin 4 6, A- 6 ', the pre-height regulations Tape cassette 8 indicated by dashed line on pin 4 8 Forces Fixed at a predetermined height. Also as already described have use to Figure 4, contacts the side 'lower surface 8 of Tepukase Tsu bets 8' in the side plate portion ¹ O of the front cover 1 O in Tepukaseji preparative platform ^{3 6} In the course of this depressing operation cormorant lid 1 O and back cover 1 ¹ before provided are pins (not shown) or the like by Tepukase Tsu bets 8 is opened as shown in FIG. ^4, the opening of Tepukase' preparative 8 as shown by a solid line in FIG. 9 Posts 22, 2 A, 25, 2, and oblique posts 30, 31, 32, 33, and pinch rollers 35 are inserted into 14. During this揷入completed, that the drum载置4 8 for mounting the Uniteichi Buga I de drum ² O by shown in 1 O view, Te - Tepukase is placed on Bukase Tsu preparative 8 Tsu preparative载The tablecassette 8 is mounted at the predetermined height position with the tablecassette 8 at the predetermined relative position with respect to the tabletop 36. At this time, the tape 9 'suspended from the front of the tape cassette 8 and the tape guide drums 20 and' are separated by a predetermined distance L (see FIG. 9). The relative position between the tape cassette mounting portion 36 and the drum mounting portion 48 in this state is hereinafter referred to as a ^first relative position. This first relative position! The position where the tape guide drum 20 shown in FIG. 8 completes the intrusion into the opening 14 and the tape 9 completes the formation of the predetermined traveling system, ie, the tape cassette Relative position of the mounting unit 36 and the drum mounting units 48 and ⁵ (position shown by partial hunting in FIG. ¹⁰ O. The position is hereinafter referred to as a ^second position. )

This will be described in more detail with reference to FIGS. 9 and 10.

First, the drum载置section 4 8, the ^first relative position coffer of Tepuka cell Tsu door载置section ^{3 6!} The movement to the second relative position is, as shown in FIG. 1O, performed by the shaft 51 mounted on the holder 1 9 fixed to the drum mounting portion 48 with the screw 5 O. are supported to rotate, also Tepukase Tsu pinion ^{5 2} and the driving gear 5 6 meshing with the rack portion 3 6 'bets platform 3 6 meshes, by to times耘, drum载置while Guy mud Ichira one 5 3 provided on both sides of the section 4 8 is by] guide holding the long hole ^4, by the fact that Tepukase Tsu preparative platform ^{3 6} is moved in the direction of the arrow ^{5 5} D Be performed.

In addition, a long hole portion 5 ⁶ ′ is provided in the disk portion 5 6 ′ integrated with the drive gear 56. Contact the pin 5 8 that has been planted in © Wow arm Ho Lee Ichiru 5 7 in this long hole ^{5 6} 'is inserted, pull! ) The rotational force of the arm wheel 5 is transmitted via the spring 59. Matu O one Muho I Ichiru 5 Ryo motor fixed to the holder one ⁴ 9 - is engaged with the U O over arm 61 which is fixed to 6 0. After the tape cassette mounting section 36 reaches the second relative position, the form wheel 5 is further rotated against the tension spring 59. The post that moves to both sides of the tape guide drum 2 O

The tension spring 59 plays a role of fixing and urging the master stoppers 62, 63 at 24 and 2 ends, respectively.

Then Tepugai de. ^{Post-2 4} moving on both sides of the de ram 2 O, 2 5 and the inclined post-3 1, 3 2 mouth one di ranging operation will be described. First, the sub-engagement that engages the supply reel 12 (Fig. 9 :) — Ϊ. The boss 24 and the tilting post 31 are planted on the slide board 65 on the side of the rail stand 64. ο—take take 13 At the end of the take-up reel base 6 that engages with the take-up reel base 6 (Fig. 9), a post 25 and an inclined boss 32 are planted at the end of the slide boat ο-and one end. a There drum载置Prefecture ⁴ 8, the other end is provided to the scan la I Dobo one Bok '6 5, 6 move the end of the § and by shown in FIG. 9 Unipo scan Bok 2 4, 2 5 ¾ respectively V stopper for positioning 62,

It is slidably movable on slide guides 6 8 and ⁶ 9 fixed to 63. The slide Dobo de 6 5, 6 7, respectively to the rear Metropolitan press Ξ lever one 7 Omicron of 7 ¹ is held,押王lever - Ryo Omicron, the other end of § ¹ drum mounting置都⁴ The pivot shafts ^{7 2} , 3, 3, which are mounted on the shaft 8, are rotatably engaged with the ends of the rotation shafts 4, 5 having the gear portions 4, 7 5 ′. I have. Then, as the tape cassette holder 36 moves in the direction of the arrow 55, the tape cassettes 76 and Τ7 provided on the tape cassette V-tube holder 36 mesh with each other. The arm 4 ', 7' of the rotating arm 7 4, 75 rotates, and the rotating arm

7 ^4, § 5 each arrow § 8 rotates in the direction of § 9. With this rotation, the slide boat "65,6" slides on the S-slide guides 68,69, and at the same time, the tape mounted on the iff surface shown in Fig.9. 9 is pulled out, and a tape 9 is wound around the outer peripheral surface of the tape guide drum 2 O. _0, and then the slide boards 65, 67 are attached to the V-stonnes 62, 63. After reaching, the tape cassette mounting portion 36 is further extended by the tension spring 59 extended between the disk portion 56 ^/ of the drive gear 56 and the worm wheel 5 as described above. Arrow 5 in the direction of 5

OMPI one ― H- energized, slide board against V-storage 62, 63

6 5 and 6 j Confirmed that the urging can be fixed. As shown in Fig. 9, the slide path '65 on the side of the supply base 64 is connected to the post 23 and the rail as shown in Fig. 9. As shown in Fig. ¹ , one end of the arm 82 with one end inserted into the support shaft SO planted in the V-stopper 62, as shown in Fig. ¹ 8 1 is the V-slot. The post 23 is urged in the direction of the arrow 83 by the screw coil panel 81 which is locked to the arm 62 and the other end SY to the arm S2. Its rotational position regulation Ryo - head to Program 8 2 of the locking projection 8 ^{2 /} and the V scan Bok wrapper ^{6 2} is that Ri by the and this abuts (see FIG. 9) ₀ Mati race ^{2 9} Ri Contact is rotatably supported to the shaft 2 3 'bosses Bok 2 3, and twisting] mounting Le bar is biased in the direction of the I arrow S 5 to the co-I le spring 8 4 8 Installed on 6. The slide as shown in FIG. 9 Dobo - Bok * 6 5 abuts the end of the V be sampled wrapper 6 2 in the process leading to the scan line Dobo one Bok 6 5 iota & ends ^{6 5} a is Ryoichi Program ^{8 2} By contacting,

— The arm 8 2 rotates in the direction of arrow 8 a against the urging force of the coil spring 81.

To, the post-2 4 off La Nji wrinkles β and the head 2 9 force to - directional over vinegar, abut, - directional Suhe' de ^{2 9} ^{post-2 3} shaft and to the arrow 8.8 Twist in the direction to rotate against the urging force of coilpane 84. As a result, the post reaches 24, and the V-stop reaches 62. Post 24 Vast — When gij reaches 62, arm 82 and erase head 29 return to their original positions with the biasing force of torsion coil panels 81 and 84. You. The slide boat "65" is the opening of the tape cassette 8.

O PI When returning to step 4, it is needless to say that the head 29 and the hub 23 rotate in the reverse order. Is rotated by bringing the rear end of the slide boat '· 65 into contact with the end of the arm 82.

Next, the operation of the rotation member 89 for planting the post 22 and the inclined post 3O, and the planting of the post 2a and the inclined post 33 and the pin roller 35 are performed. The rotation of the holding mechanism is explained.

First, the rotating arms S 9, 90 are supported by the respective supporting shafts 91, 92 erected on the drum mounting portion 48, and one end is provided at the drum mounting portion.

Locked on pins 93 and 94 on 48, respectively, and the other end is locked on rotating shafts S9 and 9O, respectively, and urges in the directions of arrows 95 and 96, respectively. The screws are urged by the respective coil springs 9 and 98. And in our the first relative position the rotation position location is in contact regulated under the erected bins 9 9, 1 OO to part ⁴ 8 mounting drum. Further Tepukase' DOO载置section ³ 6 leaf spring 1 O 1 in response to rotation Ryoichi arm 8 9, 9 O in, 1 O 2 fixed Ryoichi beam and driving abutment 1 O 3, 1 O 4 Is provided at a predetermined distance from the rotation arms 89, 90. Then, in the process of moving from the first relative position to the second relative position, the slide board 65, etc., precedes, and the end time 89, so that they do not interfere with each other in the moving process. 9 Sliding boards 65 and 6 are set so that O moves a little later, and the respective moving timings of the rotating arms 89 and SO are set. O And the rotating arm 8 9, 9 O first contact the moving contact parts 1 O 3, 1 O 4, and then

OMPI WIPO ~ I3—

9 and 10, are pressed against the torsion coil panels 97, 98, and the post 22, the funnel bolt 3 Ο are turned into the arrows 1 Ο 5, 5 in FIG. The trajectory in the direction of 106 and the post 2 end, tilt, and oblique post 33 passed the slide boards 65 and 67 while following the trajectories of arrows 107 and 108, respectively. The upper parts of the later slide guides 6 S and 69 are rotated. And at the pivot arm ^{8 9} post-2 2 Ri by the position-decided Me part 1 0 9 for, also in post-2 7 by the positioning portion 1 1 Omicron for pivoting arm 9 Omicron, respectively leaf spring 1 Ο ¹ , ¹ Ο 2 urged and positioned (see Fig. 11) ο In addition, the pinch opening held by the rotating arm ⁹ — and the 1 Omicron its moving process operation, will be described in 1 1 Figure, the Pinchiro over ^{La-3 5} as shown in ¹ Omicron view, in the axial Prefecture of post-2 7, holding fixture for supporting the upper and lower It is pivotally supported by 1 1. The one end to the inclined boss Bok 3 3, Ri by the torsion Coil Rupane 1 1 7 whose other end is engaged it in the holding bracket 1 1 1, is biased in the direction of arrow 1 1 ^2. The rotation position is the storage part provided on the slide guide 69 of the slide boat '67 at the first relative position shown in FIG. The position of the tape cassette 8 is controlled so that it can be securely inserted into the opening 14 (see Fig. 9) when the tape cassette 8 is attached to the cassette mounting section 36. On the rotating arm 9, a pinch roller one-push lever 1 14 having a rotating fulcrum 113 is placed thereon, and a plate panel 115 provided at one end thereof is provided. In the figure, it is urged to rotate clockwise as viewed from the top. The rotation position is regulated by pins 1 16 set on the rotation arm SO.

O PI-I WIPO- I have. And in over-extent to move to the second relative position Ri by a first relative position KaidoRyo - beam 9◦ an arm driving abutment Metropolitan ¹ 0 4 arrow 5 in the first 1 view and a 1 O Figure 5 In the direction of the arrow, separates from the stopper section S 9 ′ of the slide guide 69, and the pinch roller 135 is disengaged by the screw coil panel 117. arrow 1 1 ₀ and is rotated in the second direction urchin by that shown in the ^first FIG. 1, peak Nchirora while in contact held in abutment ¹ 1 4 push Repertoire one ¹ 1 ⁴ rotates o

As described above, at the rotation completion position, the positioning portion 11 o is positioned at the end of the post 2, and is urged by the plate 1 O 2. Thereafter, the pinch opening one error ^{3 5} key ya TOPS data down

³ Press and release to ⁴ or pinch roller press to release E lever

1 1 4 ends ¹ 1 ^{4 //} the opposite end to the abutment ¹ 1 4, for example, although not shown, plug Nji catcher mono- or motor is attached to the tape one Pukase' Bokuno section 3 6 Pushed to move by the primary drive source! によ Executed by pin 1 18

Note again, initially in the process Tepuka cell Tsu the rotating arm 9 0 when pin Nchirora one ³ 5 returns to the opening Metropolitan 1 4 of Bok 8 is rotated in the direction of arrow 9 6 in the 1 O view Pinchiro over La - rotates while in contact with the abutment Metropolitan ^{1 1} 4 push E Le Bas one ¹ 1 4 equivalents, Oite the end near the opening Metropolitan Te over Pukase' Bok 8 as indicated by the broken lines in the first 1 Figure The stopper part 69 of the slide guide 69 in 14 and the guide part 11Y of the holding bracket 11 1 in the pinch opening 35 contact the The pinch opening on the holding bracket 1 1 1 is pushed out of contact with the contact part 1 1 4 'of the pusher lever 1 n4. f O PI One one

At that time, it turns against the torsion coil panel 1 17 (Fig. 1 O) in the direction of the arrow 1 19 in Fig. 1 1, and in the first relative position Fig. 9 Pi inch π- error ³⁵ is returned to the predetermined position shown in. - How, key Ya TOPS motor down ^{3 4} is supported如tool post Bok ^{2 6} shown in ¹ O view to planting Sasetaki ya TOPS data down Woojin grayed 1 2 0, de ram mounted portion 4 8 A cabinet motor 121, which is mounted above and has a flywheel effect, is mounted in the capital. In addition, the tape guide drum 2 O is fixed at the drum mounting section 20 on the drum fixing section 1 2 2 provided at the drum mounting section 48 ₀

In addition, it goes without saying that the return operation from the second relative position other than the above-described rotating arm 9 O to the ^first relative position is performed in the reverse direction of the above-described operation. No. The supply or winding of the tape 9 between the first and second relative positions is performed by a motor (shown by a broken line) coupled to each of the supply and take-up reel bases 64, 66. 1) According to 1 2 3 and 1 2 4, an appropriate tape back tension or electric power to wind up is appropriately applied.

In the embodiment described above, the drum mounting portion 48 and the tape cassette mounting portion 36 operate in conjunction with the second relative position from the first relative position. The tape 9 was pulled out of the tape cassette at a first relative position with reference to FIG. 12 by using a tape cassette, and the tape guide drum 2 was wound at a predetermined angle with reference to FIG. A description will be given of a second embodiment in which the drum mounting capital and the tape cassette mounting portion are relatively moved to the second relative position after being rotated.

¾ ぉ、 Fig. 12 is the same as Fig. 1 O for easy understanding. -\ 6-

• given the same reference numerals for the components further rotated completion in the ¹ o Figure - Program 8 9, 9 0, scan La y Dobo Bok 6 5, etc. are also provided on the 6 7 · understanding convenience of Figure It has been omitted for the sake of brevity.

Therefore, only the differences between the 篛 1O diagram and the constituent elements will be described below.

First, the U O over arm Ho Lee Lumpur 1 6 9 which rotates about the shaft "! 6 8 which is implanted in the holder ^{4 9} fixed to the de ram载置Metropolitan 1 ⁶ 7, integrated by having a disk portion ¹ Ryo ^1, further o the pin ¹ § O are implanted in the disc portion ¹ 7 ^1, spindle § 2, 7, which are implanted in the drum载置portion ^{1 6} § Drive lever 1 7 5 guided to slot 1 Τ 3 and 14 respectively by ³ and guide bin ¹ key ^2- Link lever 17 for slot 1 to 6 Via the pins 1 and 8 179 that are set up there, and the rotation time 1S corresponding to the rotation time 9 in FIG. 1; In the hole 1 S 1, the link lever 18 2 and the pins 1 S 3, 18 4, which are erected there, correspond to the rotation end in FIG. 1 8 5 and the long hole Λ 8 6, 1 8 7 Rotating arms 188, 189 corresponding to 4, 了 4, 5 75 are engaged via the respective pins 〇, 1 され植植そこに planted there, and engages the pin 1 7 Omicron in U O over Muho Lee Lumpur ^{1 6 9-pin} ¹ T elongated hole 1 92 having a shape corresponding to the rotation locus of Omicron on disk portion ¹ 7 ^1. on the other hand, Tepuka Se Tsu Bok S (corresponding to the tape Ca Se Tsu preparative platform 3 6 of the 1 Omicron view) Tepuka Se Tsu Bokuno part ¹ 9 3 for载置to the drum mounting置都planting ¹ 6 Ryo Extension spring between guide roller 53 and support shaft 19 4

, OMPI _ί

1 9 5 is multiplied, Ri it is biased in a direction opposite to the direction of the arrow ^{5 5,} and by the its position Guy Dorora ^{5 3} I? Regulated. Then Tepukase Tsu bets ⁸ obtain force Π power to the disk unit ¹ § ¹ on bottle 1 7 cormorant by rotating the drawing counterclockwise direction Omicron motor over ⁶ Omicron after completing the mounting.

This good urchin constituting the rotation initially Pin ¹ 7 Omicron moves the drive lever 1 7 5 in the direction of arrow 1 5 2. And eventually come to a position where the curve of the long hole 1 9 2 coincides with the radius of rotation of the pin ¹ 7 Omicron, drive lever - 1 7 5 movement is completed. During this time, the pivot arm 18 and the pivot arm "I 88" are turned clockwise in the figure (the rotation complete position is shown by a dashed line in the figure) so that they can be easily understood on the figure. The rotation arm 1885 and the rotation arm 1S9 rotate counterclockwise in the figure, and each boss, pinch roller, etc. provided on each of the rotation arms 1S9, as described above. It is moved to the position shown in Fig. 9. ¾O slot 1 6 and 18 1 are used to move the pins 1 8 and 18 3, respectively. In order to avoid mutual interference, the beginning of the movement of the arm 1S ，, 1.85 is shifted to the rotating arms 1SS, 1S9. the part 1 9 3 part ¹ 9 3 mounting Tepukase Tsu preparative engaging portion 1 9 ^{3 /} and anti to panel 1 9 5 tensile pin ¹ 7 Omicron of moving until the position of the dashed line, the eighth The second shown in the figure It is intended to move the Tepuka cell Tsu Bok 8 until the relative position ο

As described above, according to the second embodiment, after the mounting of the tape 9 on the tape guide drum 2 is completed, the drum mounting section ¹⁶ and the tape cassette mounting section 19 3 It is possible to move the relative position of.

O PI One ho

It is clear that this configuration can be applied to a so-called front-loading tape cassette. That is, the groove may be formed so that the tape cassette mounting completion position at a predetermined height of the tape cassette mounting city is the first relative position described above.

5 In the above embodiments, the tape cassette

The motor 1 2 3 1 2 4 connected to each of the reel stands 64, 66 is pulled out to be wound at a predetermined angle around the tape guide drum 2O at the second phase position. When the tape ⁹ is moved relative to the ^first relative position, the tape ⁹ is collected into the tape cassette 8 and is wound around a tape guide drum at the second relative position, for example.

Although an embodiment has been described in which a driving force for driving a relatively large load of tape such as fast-forwarding and rewinding in a state is obtained, a relatively high load is satisfied in order to reduce the size and size of the mechanism. It is not possible to place a thick motor to be superposed on the tape cassette mounting part 36 in the thickness direction.

15 issues. If an ultra-thin motor is used, the required torque is sufficient. It is difficult to obtain power consumption. In the case of a compact power camera (VTR), the weight of the battery increases. On the other hand, in addition to downsizing the device, it has also made it possible to reduce the thickness of the device, and to collect zero and stable tape in a tape cassette, or to fast-forward and rewind the tape wound on a tape guide drum. A description will be given of another embodiment according to the present invention capable of performing an operation such as return operation with reference to FIGS. 3-1 to ο—FIG. ^{1 and} FIG. ¹ for easy understanding in this embodiment. Identical components are given the same reference numerals.

^ 3 Ο

OMPI

W1PO '' In the first Figure 3, a first ⁴ diagram a schematic development view to facilitate protrudes on the back surface of the key Ya TOPS motor down 3 4 gear 1 25 is attached to one end drum载置^{4 8,} understanding and ^{first 5} to如rather drum载置4 8 shown in FIG via a boss is supported by a shaft ^{1 2} 7 which is erected. meshed with the gear ^{1 2 7.} Incidentally key catcher TOPS motor down 3 4 drum from the examples you rotate slightly inclined to the roller to载置unit 4, de ram Ru perpendicular to mounting portion ^{4 8} Axis ^{1 2} § in this embodiment in order to gear 1 ² Ryo meshed axially supported, gear ^{1 2 5} that I cook helicopter mosquito Rugiya predetermined angle. In FIGS. 14 and 15, a pulley 128 is integrated with a gear 126, and a belt 129 is bridged between the pulley 128 and the pulley 130. The pulley 13 O is supported by the shaft 13 2 erected on the drum mounting part 8 ′ together with the integrated pulley ¹ _ 31. It is supported by a shaft 133 fixed to one end of 4. A belt 145 is bridged between the pulley 313 and the pulley 135, and the pulley 135 is fixed to the tape cassette mounting portion 36. It rotates integrally with the shaft 13 7 'of the gear 13 held by the jing 13. The gear 13 is rotatably supported by the housing 13. 1 3 8 meshes with a gear ^{1 41} rotates about an axis ^{1 4} o to be implanted through the boss 1 ^{3 9.} the shaft 1 4 0 through full E Le sheet ¹ 4 2 The idler 144 pressed by the leaf spring 144 is provided coaxially, and the rotation of the gear 134 prevents the rotation of the gear 141 meshing therewith. and to Ri ¾ a force to rotate the completion one beam 1 3 8, Ryo I de la ₄ 4 so-called, to搆成automatic swing machine搆.

Then, the boss 1 ^{3 9,} ^{first 3} view, as shown in the ^first 6 FIG tape

, —1ό—

Puka Se Tsu Bok载置section 3 6 'by the slide cathodic arm plate 1 ⁴ 6 held Pin ¹ 4 by Ri slide movably in the S to] 9 its position is controlled - have ο scan la Lee cathodic arm plate ¹ 4 6 the arrows 1 5 2 direction of the first 6 Figure Ri by the Tepuka Se Tsu preparative载置portion 3 6 is planted upright is supported by a shaft 1 S Omicron was twisted jp Koi Rubane ^{1 5} lambda Rotating biased connecting lever ^{1 5 3} Self-type plunger solenoid ¹ that engages with the end of ³ and is fixed to tape cassette 36. 4 9 by the control of the power supply to the (first 1.3 diagram)]? it is movable to a position of the scan line cathodic arm plate 1 6 shown in the ^{first 6} drawing a dashed line. The cams holes 1 4 6 of the scan la Lee cathodic arm plate 1 4 6 engages the boss "! ³ 9 holding the shaft 1 4 O Ai de la 1 4 4, the boss ¹ 3 9 ^first during the shaft 1 3 Ryo 'of the gear 1 3 7 Ryoi Dora 1 4 4 in ⁶ diagram a position location, and the arrows 1 4 § direction Ryoi Dora ¹ 4 ⁴ pivoting is prevented in the rie Le base 6 4, 6 6 Izure moved to the position shown in contact with the gas La Lee cathodic arm plate 1 4 6 one-dot chain line is forcibly held in ¾ have positioned relatively boss ¹ 3 9 of When it comes to the position B in the figure, it is allowed to rotate in the direction of arrow .14, and the idler 144 is moved to the reel stand 64 or as shown in Figs. 66 The driving force of the capstan motor 121, which abuts on 6 and doubles as a reel drive source, is transmitted by the belts 122, 145, and the gear 1了， 1 1 リリリリリリリリリリリリリリされるリされるBy the movement unit drive Le. Is, in which Li Lumpur platform is rotated. Then key pathways Ya TOPS data Nmo transmits the driving force of the motor - ¹ 2 1 surplus displaced the transfer position In the first diagram, which is a schematic diagram illustrating the correction means, the pulley is now in the middle of the pulley 13 1 —1 I—

As 1 3 5 rotates, drum载置⁴ 8, and Tepuka Se Tsu Bokuno置都3 ^{6 /} problems when moving between first and ^second relative position causes have ¾, drawing arrows ^{1 5 4} moves in the direction Li Lumpur stand ^{6 4,} or maintain the relative positions of the ^{6 6} constant, ^first, the so-called bite angle of completion I Dora 1 4 4 also during movement between the ^second relative position constant I kept Unishi with a stable Li Lumpur stand ^{6 4,} or ⁶ to ⁶ sagging bell bets' I 4 ⁵ corresponding to diagram X if to be Hakaro the transmission of the rotational force is generated O

Therefore, in this embodiment, as shown in FIGS. 13 and 15, the tape cassette mounting portion 36 is provided with a belt 1 for movement between the first and second relative positions. A cam groove 1 5 5 corresponding to the slack amount of 4 5 is provided, and is set on the shaft 1 3 4 which rotates around the above-mentioned shaft 13 2 fixed to the drum mounting section 4. The transmission position of the pulleys 13 1 and 13 0 is displaced in the direction of the arrows ^{15 and 6 in} Fig. 15 by engaging the shafts ¹³ and 13 to keep the tension of the belt ¹⁵ constant. And transmit the reel driving force stably. In the present embodiment, the force which causes the tension of the belt 1 29 to change without being changed by the movement of the pulley 130 in the direction of arrow 156; The amount of displacement in the length direction in the stretching direction of the root 129 is extremely small, and there is no substantial problem. If in the case of Ru and problems that may be搆成with the rotation center of the arm 1 3 4 to match the center of rotation of the pulleys one ¹ 2 8 is self-evident.

As described above, the tape cassette mounting part 36 ^/ and the drum mounting part 48 shown schematically by the tape cassette 8 shown by the dashed line in FIG. At the second relative position to In the first relative position schematically shown by the tape cassette 8, and also in the movement process between the second and first relative positions, the purger solenoid shown in FIG. ^{13 is used} . 1 ^{4 9} power supply control Contact Yobiki ya TOPS data Nmo COMPUTER 1 2 1 especially good rotational direction Sen択j9 stable Li Lumpur driving force Li Lumpur base 6 4 to 6 6 O In other words, as shown in Figs. 13 and ¹⁶ , power is supplied in the release direction to the plunger solenoid 1449 in the release direction. By rotating in the direction shown by the arrow 15 2 in the figure by the force of the pan panel 15 1, the slide cam plate 1 46 is moved to the position shown by the one-dot chain line, and the data Nmo COMPUTER ¹ 2 1 round fe direction first 6 diagram idler 1 ₄ due to the 4 to rotate in a counterclockwise direction as Li Lumpur stand 6 4, also watches By selecting the rotation direction in the direction, it is possible to drive the end driver 14 4 4 into contact with the reel base 6 6 and drive the fe fe. de 1 4 9 particular good will rows of power supply of the suction direction to is, at the same time illustrated the well is returned to the contact has a position in any of Ryoi Dora 1 4 4 and Li Lumpur stand _{6 4,} 6 6 It is possible to stop the reel bases 64, 66 by moving the reel brakes differently from the swivel board "! 46". Next, another embodiment of the transmission path complementing IE means will be described with reference to Fig. 18. In Fig. 1S, in principle, the belt 1445 in Fig. 14 is eliminated, and the pulley is removed. FIG. 18 shows an embodiment in which the gears 13 1 and 13 5 are replaced with the gears 15 and 15 S in FIG. ¹ respectively. 4 Shows given the same reference numerals to those to name the same function as the components described in. Te in 篛 1 8 Figure

O PI —2.3—

Pukase Tsu Bok载置section 3 ^{6 //} gear 1 5 in the axis ¹ 3 3 is provided cams grooves 1 ^{5 9} for moving the rotating guide to the arrow ¹ 6 0 Direction Contact] 9 ^first relative position in The gear 15S and the gear 15g mesh with the gear 15G at the ^second relative position from the rotation center C at the ^second relative position. It shows an embodiment that enables transmission.

FIG. 19 shows another embodiment of the transmission path correcting means. In principle, the pulleys 13 O and 13 1 in FIG. 15 are set on the drum mounting portion 4 ″. spun at a fixed position about the axis ¹ 6 1, pulleys - 1 3 5 axes erected sagging accompanied ¾ Ube Le sheet 1 6 2 tape Pukase Tsu Bokuno section 3 6 ^ to the movement of 1 6 3 rotates around a tension b over La one ^{1 6 6} provided on Ryoichi arm ^{1 6} 5 which is biased in the direction in which panel 1 6 4 by the rebates Le preparative tension increases This is an embodiment in which the slack of the belt 162 due to the movement between the ^first and ^second relative positions is corrected, which also enables stable transmission of the driving force. It is.

In the above, the embodiment of the type in which the capstan motor is used as the drive source of the reel has been described, but the motor dedicated to reeling is provided on the drum mounting portion. It is self-evident that they can be provided.

Industrial applications

As described above, according to the magnetic recording / reproducing apparatus of the present invention, at the time of recording or reproduction, the tape guide drum enters the tape cassette, so that the tape cassette and the tape guide are provided. The smaller the area occupied by the drum and the smaller the magnetic recording / reproducing device is, the smaller the flat area occupied by the drum and the portable videotape. This is effective when applied to a recorder or the like.

Ο ΡΓ

Claims

—2. ^ — Scope of billing

1. Built-in tape cassette mounting section for mounting a tape cassette with an opening on the front surface where the magnetic tape is stretched, and a transducer that is driven to rotate A drum mounting portion on which a cylindrical tape guide drum is mounted; and a tape pulling-out means for pulling out the opening, the ir magnetic tape, and winding the magnetic tape at a predetermined angle on the tape guide. A magnetic recording / reproducing apparatus for recording or reproducing a signal on or from a tape, wherein the magnetic tape is wound on a tape guide. The drum mounting capital is provided on the opposite side of the opening city via the tape stretched over the Ϊ & surface of the tape cassette mounted on the tape cassette mounting portion. the ^first but you position The opposite position and the fir tape rather than the is position where the tape is stretched over the front of the tape cassette set on the front surface of the tape cassette set on the tape cassette mounting part. A magnetic recording / reproducing apparatus characterized in that the tape guide drum is relatively movable between the tape guide drum and a second relative position where the tape guide drum is located at a position where the tape guide drum has entered the opening through the opening. .

2. The first relative position between the tape cassette mounting portion and the drum mounting portion according to claim ¹ , wherein the first relative position is D and the second relative position is interlocked with the relative movement of the tape cassette mounting portion to the opposite position. A magnetic recording / reproducing apparatus characterized in that a tape pull-out means winds an iff tape onto the tape guide drum at a predetermined angle.

3. In claim 1, after the itr tape pull-out means winds the tape around the tape guide at a predetermined angle, the tape cassette mounting portion and the drum mounting portion The first relative position of the

OMPI WIPO —16—

(2) Reproducing magnetic recording, which is characterized by relative movement to relative position

o-4. In Claim ¹ , the relative distance between the first relative position and the second relative position of the tape cassette mounting portion and the drum mounting portion of the I & K tape cassette and the drum relative to the movement distance substantially corresponded. A magnetic recording / reproducing apparatus characterized in that it has a housing corresponding to a tape cassette mounting portion that moves relatively by a distance and a housing corresponding to the drum mounting portion.