JPS59897B2 - magnetic recording and playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention comprises a magazine mounting section into which a magazine containing a magnetic tape is mounted, a rotating magnetic head device having a magnetic tape guide surface, and a method for pulling out a magnetic tape from the magazine mounted in the magazine mounting section. The magnetic tape guide surface of the rotating magnetic head device is mounted on the magnetic tape mounting means, and the magazine mounting portion side and the magnetic tape guide surface of the magnetic tape mounted on the magnetic tape guide surface of the rotating magnetic head device. At least first and second position regulating means for regulating the positions on the opposite side, respectively, and a tape driving means for driving the magnetic tape mounted on the magnetic tape guide surface of the rotating magnetic head device. Regarding a magnetic recording and reproducing device, which is equipped with a magnetic tape and is configured to record and reproduce a video signal by forming a magnetization locus that extends at a predetermined inclination angle with respect to the longitudinal direction of the magnetic tape, it is particularly suitable for mounting a magazine. The magazine and the magnetic tape mounting means have a mutually specific configuration that allows the magnetic tape to be easily pulled out from the magazine mounted on the unit, and the magnetic tape mounting means is connected to the magnetic tape guide of the rotating magnetic head device. The present invention has a special structure that allows the diagonal mounting of the magnetic tape on the surface with a simple structure, and allows the magnetic tape from the magazine to be smoothly and easily mounted on the magnetic tape guide surface of the rotating magnetic head device. The present invention is to propose a magnetic recording/playback device of this type.

An example of the present invention will be described below with reference to the drawings.

In Figures 1 and 2, 1 indicates the main board, and its main surface 2
A magazine mounting section 4 to which a magazine M is mounted is provided at the upper front position, and a sub-board 5 is mounted at the rear position. An example of the magazine M mounted on the magazine mounting section 4 has reel stand receiving holes on the lower surface side of the husband, at the left and right positions in the goose body 11, as is clear with reference to FIGS. 3A, B, and C. A winding frame 14 having a central shaft 13 protruding from the upper surface thereof and extending outward in the radial direction from its upper and lower outer peripheral edges, respectively, and facing each other, limiting plates 15 and 16. It has a configuration in which a supply reel 17 and a take-up reel 18 are rotatably arranged.

In this case, the central shafts 13 of the reels 17 and 18 are supported by bearings 21 and 22 provided on the top plate 19 of the goose body 11, respectively. Further, a guide pin 24 is installed extending between the upper surface plate 19 and the lower surface plate 23 at the front left position of the case body 11, and a guide pin 24 is installed extending between the upper surface plate 19 and the lower surface plate 23 at the front right position. A pair of guide pins 25 and 26 are installed at a small distance in the left-right direction (with pin 25 on the left side). Furthermore, a tape draw-out window 29 is provided in the front plate 28 of the goose body 11 and extends from the left side of the pin 24 to the right side of the pin 26 in the left-right direction. Furthermore, reel stand insertion holes 32 and 33, which expose the reel stand receiving holes 12 of the reels 17 and 18 to the outside, are located in the lower plate 23 of the goose body 11 at positions facing the reel stand receiving holes 12 of the reels 17 and 18, respectively. Positioning holes 34 and 35 are formed at the right and left positions of the lower plate 23, respectively, and the above-mentioned window is formed in the lower plate 23 from the front edge position extending between the right side position of the pin 24 and the left side position of the pin 25. A notch 36 is provided that communicates with 29. In the case body 11 of such a magazine M,
The pin 24 is extended from the roll 17, and then the pin 25 is extended from this.
A magnetic tape 27 is housed inside the tape 27, passing between the pins 25 and 26, and reaching the reel 18. Therefore, the tape 27 faces the outside through the window 29, and the bottom plate 23 of the goose body 11 is attached to the back of the tape 27. A cavity 39 is formed which communicates with the outside via a notch 36 provided in the. The magazine mounting section 4 is rotatably supported on the main surface 2 of the main board 1 at the front right and left positions extending perpendicularly to the main surface 2 (this pivot means is not shown). Reels 17 and 18 of the magazine M mentioned above
The supply reel shaft 37 and the take-up reel shaft 38 corresponding to the reel stand receiving hole 12, the reel stands 41 and 42 mounted on the equal shafts 37 and 38, respectively, and the reel stands 41 and 42, respectively. Alternative holes are installed at slightly rear left and right positions extending orthogonally to the main surface 2, and correspond to the positioning holes 34 and 35 of the magazine M, which receive the bottom plate 23 of the magazine M at the respective free end surfaces. Magazine receiving stands 43 and 44 of the same height are installed on the left and right positions slightly in front of them when viewed from the reel stands 41 and 42, extending orthogonally to the main surface 2, and the above-mentioned free end surfaces are installed. Magazine receiving stands 45 and 46, which are at the same height as the above-mentioned stands 43 and 44 for receiving the lower plate 23 of the magazine M, and magazine positioning pins 47 and 48 set on the free end surfaces of the stands 43 and 44. It becomes more.

The above-mentioned magazine M is mounted on the mounting section 4 with its front plate 28 facing the rear side of the mounting section 4 and the bottom plate 23 is mounted, as shown by the chain lines in FIGS. 1 and 2. Part 4 stand 43~
It is attached from above in abutting relation to 46.

In this case, since the platforms 43 to 46 of the magazine M are at the same height when viewed from the main surface 2, the height position from the main surface 2 is regulated with the upper and lower surfaces being parallel to the main surface 2 of the main board 1. be done. Further, since the pins 47 and 48 of the mounting portion 4 are inserted into the holes 34 and 35, respectively, the magazine M is regulated in its front, rear, left and right positions. Furthermore, since the reel stands 41 and 42 are inserted into the holes 12 of the reels 17 and 18 of the magazine M, the reel shafts 37 and 38 are rotated 1 by the reel shaft 1 drive mechanism provided under the substrate 1 (not shown). By driving, the magnetic tape 27 in the magazine M is transferred from the reel 17 side to the reel 18 side or vice versa. The sub-board 5 is produced, for example, by a mold, and as is particularly clear in FIGS.
and a first mounting surface 51 that is inclined, for example, by about 50 degrees with respect to the lower surface 50, that is, the main surface 2 of the main board 1, and the lower surface 50.
Therefore, the second mounting surface 52 is parallel to the main surface 2, and the third mounting surface 52 is inclined by approximately 10, for example, with respect to the lower surface 50 and therefore the main surface 2.
It has a mounting surface 53.

In this case, as described above, the main part of the main board 1 including the line LO connecting the pins 24 and 25 as seen in the plan view (FIGS. 1 and 4A) with the magazine M mounted on the mounting section 4. Side 2
A line LO passing through an imaginary plane perpendicular to (this is called SO) and a point at or near the center position between pins 24 and 25 of line LO.
A virtual plane perpendicular to the main surface 2 of the main board 1 (this is referred to as S2) including a line L2 perpendicular to the line L2, and a line LO passing through a point on the line L2 at a predetermined length from the intersection of the lines LO and L2. For example, 3f
An imaginary plane perpendicular to the main surface 2 that includes a line L1 forming an angle θ, (generally within the range of 45 lines ±15) (this is referred to as S1)
When considering, the first mounting surface 51 has an orthogonal relationship with the virtual surface S1, and the virtual surface SO
The first mounting surface 51 has a relationship in which it approaches the main surface 2 as it approaches the intersection line of S1 and becomes further away from the main surface 2 as it reaches the opposite direction. When viewed from a direction perpendicular to an imaginary plane (this is S-51) parallel to this mounting surface 51, the mounting surface 51 is located on the line of intersection between the imaginary planes S1 and S2 on the line L2. Or, for example, three surface portions 5 within one common surface arranged at a predetermined interval on a virtual annular region centered on a point in the vicinity thereof.
Consists of 1-1, 51-2 and 51-3.

Further, the second mounting surface 52 is similar to the first mounting surface 51 when viewed from a plan view.
Consisting of the surface portions 52-1 and 52-2 within one common plane at the front center position and the front right side position on the outside of the arrangement area of the surface portions 51-1 to 51-3 (having an elliptical ring shape). .

Furthermore, an angle θ2 of, for example, 42 is formed with the line LO passing through a point (at or near the intersection of L2 and L3) that is a predetermined length from the intersection of the lines LO and L2 mentioned above when viewed from the plan view.
When considering an imaginary surface (this is S3) perpendicular to the main surface 2 including a line L3 forming a range of 5L±15, the third mounting surface 53 has an orthogonal relationship to the imaginary surface S3. and has a relationship in which it approaches the main surface 2 from the intersection line side of the virtual surfaces S2 and S3 to the intersection line side of the virtual surfaces SO and S3, and becomes further away from the main surface 2 as it reaches the opposite direction, Therefore, the third mounting surface 5
Similar to the first mounting surface 53, the mounting surface 3 is tilted downward to the front right, but different from this, with an angle of inclination of approximately the same degree as the first mounting surface 53. A surface portion 53 arranged at a position approximately symmetrical to the above-mentioned surface 52-1 across the line L1 on the outside of the arrangement area (elliptic ring shape) of the surface portions 51-1 to 51-3 as the mounting surface 51 of the first embodiment. -a and
A virtual annular region (centered on a point on or near the intersection line formed by virtual surfaces S1 and S2 on line L3 when viewed from a direction perpendicular to a virtual surface parallel to surface 53 (this is referred to as S-53)) However, when viewed from the top view, the surface portion 51-1 is the first mounting surface 51.
For example, within one common plane different from the common plane formed by the surface portion 53-a, which is arranged at a predetermined interval on the arrangement area (having a relationship surrounding the arrangement area of 51-3 (having an elliptical ring shape)) Surface portions 53-Bl, 53-B2 and 53-B3, and virtual surface S
- Surface portions 53-b1 to 53- when viewed from the direction orthogonal to 53
The above-mentioned second mounting surface 5 on a virtual annular area concentric with the annular virtual arrangement area of B3 and having a size surrounding it.
The above-mentioned surface portions 53-b1 to 2 are arranged with a predetermined interval maintained between the areas extending clockwise from the position facing the surface portion 52-1 as No. 2 to the position facing the above-mentioned surface portion 53-a. 53-Another 1 different from the common surface formed by B3
Surface portions 53-Cl, 53-C2 and 53- within two common planes
C3 and the surface portions 53 within the common plane formed by the surface portions 53-a, for example, which are respectively disposed at the front right position in the plan view on the arrangement area of the surface portions 53-b1 to 53-B3 and on the outer area thereof.
-a1 and 53-D2 and, for example, within a common plane formed by the surface portion 53-a, which is arranged at a slightly forward and right-hand position when viewed from a plan view on or in the vicinity of the array area of the surface portions 53-bl to 53-B3. It consists of a surface portion 53-c.

A rotating magnetic head device 60 is mounted on the first mounting surface 51 of the above-mentioned sub-board 5 with that surface 51 as a reference.

Since this rotating magnetic head device 60 is known per se, a detailed explanation thereof will be omitted. However, two cylindrical bodies 62 having the same outer diameter φ are stacked concentrically with a small gap 61 maintained between them. and 63, and the lower cylindrical body 6
It is mounted on the sub-board 5 by appropriate means in such a manner that its lower end face perpendicular to the axis of the sub-board 5 is brought into contact with the surface portions 51-1 to 51-3 serving as the mounting surface 51 of the sub-board 5.

In this case, the upper cylindrical body 63 has a rotary shaft 64 attached thereto by suitable means so as to be rotatable, and has an angular spacing of approximately 1800 on the outer peripheral edge of the lower end of the cylindrical body 63. Two rotating magnetic heads 65 and 66 are mounted in such a manner that their tips slightly protrude from tape guide surfaces 67 formed by the outer peripheral surfaces of cylindrical bodies 62 and 63.
Therefore, the rotating magnetic heads 65 and 66 have a surface that is inclined by approximately 52 degrees with respect to the main surface 2 that is perpendicular to the imaginary surface S1 that is perpendicular to the main surface 2 of the main substrate 1 including the above-mentioned line L1 (the above-mentioned imaginary surface S-51).
The central point of the rotating magnetic heads 65 and 66 in the plane of rotation is located on the above-mentioned line L2 when viewed from the top.

Further, the outer diameter φ1 of the cylindrical bodies 62 and 63 has a value smaller than the inner diameter φ2 of the rotating ring 93, which will be described later, and the tape guide surface 67
The front part of the main surface 2 is arranged close to a virtual plane SO that is perpendicular to the main surface 2 and includes the line LO mentioned above. The height relationship of the main substrate 1 of the rotating magnetic head device 60 with respect to the main surface 2 will become clearer from the description of the operation described below. Furthermore, a first position regulating means 70 is mounted on the second mounting surface 52 of the above-mentioned sub-board 5 with that surface 52 as a reference.

This means 70 includes surface portions 52-1 and 52 as mounting surfaces 52.
-2 has pins 71 and 72 of equal length planted perpendicularly to those surfaces, and a support plate 73 is bridged between the end faces of both pins 71 and 72, and on this support plate 73 Two identical position regulating pins 74 and 75 as the first position regulating means 70 are installed extending in a direction orthogonal to the surface 52.

In this case, the pins 74 and 75 are provided with a pair of flanges 76 and 77 whose inner surfaces are spaced apart by the width of the magnetic tape 27 to be placed in the magazine M described above in the length direction, and the pins 74 are The pin 75 is disposed close to and opposed to the center front of the tape guide surface 67 of the rotating magnetic head device 60 described above, and the pin 75 is disposed slightly to the front right of the pin 74. An erasing magnetic head 78 is mounted on the plate 73 between the pins 74 and 75. Furthermore, the third sub-base version 5 mentioned above
On the mounting surface 53 of , with the surface 53 as a reference, a second position regulating means 80, a tape mounting means 81, and a tape driving means 8 are installed.
A second control magnetic head 83 and the like are attached.

In this case, the second position regulating means 80 consists of two mutually identical pins 86 and 87 having a pair of flanges 76 and 77 similar to the pins 74 and 75 described above; is planted on a surface portion 53-a as a part of the mounting surface 53, extending in a direction perpendicular to the surface. In this case pin 86
is disposed approximately symmetrically with the pin 74 with the above-mentioned magnetic surface S1 in between, and is disposed close to the right side of the tape guide surface 67 of the above-mentioned rotating magnetic head device 60, slightly toward the rear;
Further, the pin 87 is arranged on the front right side when viewed from the pin 86.
Further, the tape mounting means 81 includes pulleys 91-1, 91-2, and 91-3, which are identical to each other and which are provided corresponding to the surface portions 53-b1 to 53-B3 as a part of the mounting surface 53. equal pulley 9
The shafts 94 of the pulleys 91-1, 91-2 and 91-3 are rotated within the rotary ring 93. Around the periphery, pulleys 91-1 to 91
- 3 are planted in the planes 53-Bl, 53-B2, and 53-B3 in such a way that they extend in a direction perpendicular to those planes, so that the rotating ring 93 includes the line L3 mentioned above. The main board 1 is configured to be able to rotate in a plane (a plane parallel to the above-mentioned virtual plane S-53) that is inclined by approximately 10 degrees with respect to the principal plane 2 that is orthogonal to the virtual plane S3 that is perpendicular to the principal plane 2 of the main board 1. ing.

In this case, the outer diameter φ of the rotating ring 93 is selected to be smaller than the distance between the left and right side surfaces 30 and 31 of the magazine M mentioned above, and the left side surface 3 of the magazine M is entirely mounted on the mounting section 4.
0 (right side surface as seen in Figure 1) and extension plate imaginary surface SB of right side 31 (left side surface as seen in Figure 1) or this virtual surface SB with a small distance from the outside. The rotary ring 9
3 is attached to the mounting part 4 as far as possible so that a part thereof is located below the magazine M mounted in the mounting part 4 when viewed from the top view.
It is placed towards the side and towards the front. Further, the rotary ring 93 is provided with stop notches 95 and 96 on its outer periphery at an angular distance of, for example, approximately 2900 mm from each other, and on the other hand, for example, for mounting on the main surface 2 of the main board 1. An engaging piece 97 (the means for doing so is not shown) is disposed at a position below the magazine M attached to the rotating ring 93 and is pressed toward the outer peripheral surface of the rotating ring 93. A first rotation position where the engagement piece 97 engages in the notch 95, and a second rotation position where the engagement piece 97 rotates approximately 290 degrees clockwise when viewed from above and engages in the notch 96. It is designed to take the rotational position of .

Further, the rotating ring 93 has a pinch roller so as to be located in the empty space 39 in the case 11 of the magazine M when the magazine M is attached to the mounting portion 4 in the first rotating position. 98 is placed.

In this case, the shaft 99 of the pinch roller 98 is a rotating arm 101 that extends counterclockwise along the extension direction of the ring 93 when viewed from the shaft 100 that is pivotally connected to a shaft 100 that is mounted on the rotating ring 93.
The rotating arm 101 is attached to the free end of the ring 9.
When the rotation ring 93 is in the first rotation position, this arm 101 is attached to the main board 1 by the spring 102 mounted between the cam plate 103 and the cam plate 103 (the attachment means are not shown). The ring 93 is in pressure contact with the cam surface 104 from the front side when viewed from the top.
When arm 1 is in a rotational position other than the first rotational position,
01 is rotated counterclockwise so as to collide with the engagement piece 105 attached to the ring 93. In this case, the cam surface 104 of the cam plate 103 is a surface that recedes backward in the counterclockwise direction along the extension direction of the J ring 93, so that when the ring 93 is in the first rotating position, the pinch roller 98 is the empty space 3 of the magazine M with the maximum forward position seen in the plan view.
If the ring 93 is rotated clockwise from this point, the pinch roller 98 will move to the left rear as seen in the plan view, and the pinch roller 98 will be easily guided out of the space 39 from the space 39. It is being done as it should be done.

The outer diameter of the pinch roller 98 is selected so that when the arm 101 collides with the engagement piece 105, a portion of its outer circumferential surface can sufficiently protrude from the inner circumferential surface of the ring 93. has been done.

On the arm 101 to which the pinch roller 98 is attached,
A tape pull-out/guide pin 106 is installed at a position spaced apart from the pinch roller 98 by a predetermined distance clockwise along the extension direction of the ring 93. Therefore, the pinch roller 98 is arranged at a position behind the pin 106 in the rotation direction when the rotation ring 93 rotates from the first rotation position to the second rotation position. There is. In this case pin 1
06 is the empty space 3 of the magazine M mounted on the mounting section 4 together with the pinch roller 98 when the ring 93 is in the first rotational position.
9, and has a shape that will become clear with the operation described below. Further, the ring 93 has a position slightly counterclockwise from the position of the pinch roller 98, that is, a rotation position when the rotation ring 93 rotates from the first rotation position to the second rotation position. An engagement in which an engagement roller 118 attached to the free end of a rod 119 of a tape guide mechanism 111-1 to 111-3 (described later) of the ring 93 engages at a position trailing the pinch roller 98 in the moving direction. A hole 108 is provided, and a pair of tape guide pins 74, 75, 86, and 84 described above are provided at a predetermined distance counterclockwise in the extending direction of the ring 93 when viewed from the pinch roller 98. A tape guide pin 109 having flanges 76 and 77 is installed so as to extend orthogonally to the plane formed by the ring 93.

Further, the rotating ring 93 is rotated by a driving wheel 110 (its mounting means and driving mechanism are not shown) mounted on the main surface 2 of the main board 1 and rotates against the inner circumferential surface of the ring 93 to form a so-called rim drive. It is configured to be able to rotate between the first and second rotational positions described above in the formula.

Further, the tape mounting means 81 has tape guide mechanisms 111-1, 111-2, and 111-3 provided corresponding to the surface portions 53-c1 to 53-C3 as other parts of the mounting surface 53. .

This tape guide mechanism 111-1 has a U-shaped angle 112.
The bottom plate portion 113 is in contact with the surface portion 53-cl and is attached to the image portion 53-cl. In this case, the angle 112 has its opposite plate portions 114 and 115.
The relative position with respect to the ring 93 is determined so that a line connecting the two passes through the virtual axis of the ring 93 or its vicinity. Also mechanism 111-
1 has a rotating shaft 116 that can be rotatably extended as a bridge between opposing plates 114 and 115 of the angle 112, and a tape guide pin 117 that can be extended from the pivot shaft 116. In this case, the distance between the rotation shaft 116 and the pin 117 is 1
It has an angle θ3 within the range of 100 and 151, so that the axis 11
6 is a rotating magnetic head that passes through the underside of the ring 93 from the outside of the outer peripheral surface of the ring 93 to the inside of the inner peripheral surface of the ring 93, approaching the virtual plane formed by the ring 93 as it approaches the inside. The pin 117 extends toward the device 60 side, so that the pin 117 is always connected to the ring 93 when viewed from the top.
and the tape guide surface 67 of the rotating magnetic head device 60.
It is designed to be placed in the space between. A rod 119 is attached to the rotating shaft 116, which is an extension of the pin 117, and has an engaging roller 118 at its free end.

In this case, the virtual plane including the rotating wheel 116 and the rod 119 is the axis 11.
The roller 118 is a virtual surface different from the above-mentioned virtual surface including the pin 117 and the roller 118, and although the roller 118 normally exists on the lower surface side of the ring 93, the above-mentioned engagement hole 108 formed in the ring 93 is on the position of the mechanism 111-1, the engagement hole 108
roller 11.
8 is exactly in the engagement hole 108, the springs 120 and 121 inserted between the rod 119 and the angle 112 cause the shaft 116 to rotate clockwise and counterclockwise when viewed from its outer end surface. The roller 118 is rotated in a clockwise direction, so that if the engagement hole 108 is in the escaped position due to the position of the mechanism 111-1, the roller 118 is rotated in the direction of the springs 120 and 121.
The ring 93 is in contact with the lower surface of the ring 93 against the biasing force of either of the above. Then, while the roller 118 is in contact with the lower surface of the ring 93 due to the force of the spring 120, the pin 11
7 is the virtual surface formed by the ring 93, that is, the virtual surface S-5 mentioned above.
3, and in this state, the pin 117 faces the tape guide surface 67 of the rotating magnetic head device 60, and the free end of the pin 117 is far beyond the imaginary plane formed by the ring 93. The position is such that the free end of the pin 117 approaches the virtual plane formed by the ring 93 when the roller 118 is in contact with the lower surface of the ring 93 due to the force of the spring 121. In other words, the so-called pin 117
It is arranged so that it is in a state of collapse. The tape guide mechanisms 111-2 and 111-3 are the tape guide mechanisms 11 described above.
1-1, and therefore the mechanism 111-2
In 111-3 and 111-3, the same reference numerals are given to the corresponding parts of the mechanism 111-1, and a detailed explanation thereof will be omitted. 53-C2 and 53-C3, respectively. Also, the tape 1 attached on the third attachment surface 53 of the sub-board 5
The drive means 82 has a capstan 131 connected to a suitable rotation means, which is pivoted on a surface portion 53-dl as another part of the surface 53 in a relationship extending orthogonally to this surface (the pivot means is (not shown).

On the other hand, a brake drum 141 is attached to a position below the attachment position of the reel stand 41 of the supply reel shaft 37 mentioned above, and a support column 142 is installed at a position slightly to the left behind the drum 141 on the main surface 2 of the main board 1. Further, a shaft 143 is installed at a position slightly to the right behind the drum 141 on the main surface 2,
A tension arm 144 is pivotally connected to this shaft 143, and a brake shaft 146 is extended between one free end 145 of this tension arm 144 and a support post 142, and extends around the brake drum 141. 143 and extend it downward to the side opposite to the free end 145 side, and attach the pin 1.
47 is planted, and a tape guide pin 149 that can be extended upward is also planted on a free end 148 of the arm 144 on the side opposite to the free end 145 side that sandwiches the shaft 143. In addition, a shaft 150 is installed at a rear left position when viewed from the shaft 143 on the main surface 2,
An arm 151 is rotatably pivoted to this shaft 150, and on the other hand, this arm 151 is rotatably biased clockwise in a plan view by a spring 152 that can be inserted between this arm 151 and the main board 1.
The rotation of this arm 151 is stopped by a stop piece 153 planted on the substrate 1. Further, the tension arm 144 is rotated and biased clockwise in plan view by a spring 154 interposed between the tension arm 144 and the base plate 1, so that the pin 147 comes into contact with one end 155 of the arm 151. ing. However, in this case, Article 15
4 is weaker than that of the spring 152 described above, therefore, the arm 151 is kept in a position where it can collide with the stop piece 153, and the rotation of the arm 144 is controlled by the pin 147 of the arm 151. It is designed so that it collides with the end portion 155 and is stopped. When the arm 151 is in contact with the stop piece 153 and the pin 147 of the arm 144 is in contact with the end 155 of the arm 151, the pin 149 is in the state where the magazine M is installed in the mounting part 4. It is arranged in such a way that it is located within the space 39 in the goose body 11 of the magazine M, and the contact pressure of the brake shoe 146 against the brake drum 141 is minimized. On the other hand, on the lower surface of the rotating ring 93 mentioned above, this ring 9
3 reaches the second rotation position from the first rotation position. The above-mentioned arm 1
The end 1 on the opposite side of the end 155 across the shaft 150 of 51
A pin 157 is installed which engages with the arm 156 and causes the arm 151 to rotate counterclockwise in plan view against the spring 152, so that the arm 151 is rotated when the ring 93 is in the second rotational position. The arm 144 assumes its maximum rotation position in the counterclockwise direction, and accordingly, the arm 144 assumes its maximum rotation position in the clockwise direction so that the contact pressure of the brake shoe 146 against the brake drum 141 is maximized. being done. The outline of the structure of an example of the present invention has been clarified above, but to further describe the operation, as shown in FIGS. It will be installed.

Before the magazine M is mounted on the mounting section 4, the rotation ring 93 of the tape mounting means 81 is in the first rotation position where the notch 95 engages with the engagement piece 97, and therefore the mounting section 4, the pinch roller 98 and tape pull-out/guide pin 106 arranged on the ring 93 are arranged from below through the notch 36 in the space 39 of the goose body 11 of the magazine M. has. In this case, the pin 106 and the pinch roller 98 are connected to the rotating arm 101 biased by the spring 102.
Since the arm 101 is engaged with the cam surface 104 of the cam 103, the pin 106 and the pinch roller 98, especially the pinch roller 98, are biased toward the back side of the tape 27 in the magazine MO case body 11. It is in the correct position. In this state, the engagement piece 97 is disengaged from the notch 95, and the drive wheel 110 is driven, thereby causing the rotation ring 93 to rotate clockwise as viewed in FIG.

When the rotating ring 93 is rotated in this manner and the notch 96 thereof is rotated to a position facing the engaging piece 97, the engaging piece 9
7 is pressed against the outer circumferential surface of the ring 93, and the ring 93 assumes a second rotational position in which the engagement piece 97 engages in the notch 96, and at this time the drive of the drive wheel 110 is released. Rotating ring 93
If the pin rotates from the first rotation position, then pin 1
06 and the pinch roller 98 move to the right rear, the tape 27 that can be stretched between the pins 24 and 25 in the magazine M is pulled out to the right rear by the pin 106 and the pinch roller 98, and then the magazine M pin 24-pinch roller 9
While forming a loop that covers 8-1 pin 106-pin 25, the tape 27 is further pulled out to the right rear from the reel 18 side, and further continues to form a loop that covers pin 24-pinch roller 98 pin 106-pin 26. Meanwhile, the tape 27 is pulled out to the right rear.

As the tape 27 is pulled out and the loop length of the tape 27 is gradually increased, the ring 93 rotates and the engagement hole 108 attached thereto comes to the position of the tape guide mechanism 111-1.
A roller 118 attached to the rod 119 of this mechanism 111-1
has been in contact with the lower surface of the ring 93 until now, but now engages with the hole 108, and as a result, the rod 119 and hence the rotation shaft 116 rotate clockwise when viewed from the outer end surface side.
Further, the ring 93 rotates and the roller 118 moves into the hole 108.
When the tape guide pin 117 attached to the rotary shaft 116 comes into contact with the lower surface of the ring 93, the tape guide pin 117 stands up. In this case, the pin 117 is erected inside the loop of the tape 27 that has been expanded in width by the pin 24 of the magazine M, the pinch roller 98, the pin 106, and the pinch roller 98 that covers the pin 26. is not a hindrance. In this way, when the pin 117 of the mechanism 111-1 stands up and the ring 93 subsequently rotates, the tape 27 is moved from the pin 24 of the magazine M to the pitch roller 98 to the pin 106 to the pin 1.
17 - A loop is formed around the pin 26 and it is pulled out further rearward, and then the hole 108 of the ring 93 is inserted into the next tape guide mechanism 1.
11-2, the pin 117 of this mechanism 111-2 stands up in the same manner as described above, and the tape 27
is pin 24 of magazine M - pinch roller 98 - pin 10
6. The pin 117 of the mechanism 111-2 - the pin 117 of the mechanism 111-1 - the pin 26 of the magazine M is formed, and is further pulled out, and then the hole 108 of the ring 93 is inserted into the next tape guide mechanism. 111-3, the pin 117 of this mechanism 111-3 stands up in the same way as described above, and the tape 27 connects the pin 24 of the magazine M, the pinch roller 98, the pin 106, the mechanism 111-3, 111- 2 and 11
The pin 117 of 1-1 forms a loop surrounding the pin 26, and is further pulled out. While pulling out the tape 27, the ring 9
3 rotates, and the notch 96 engages with the engagement piece 97.
When the rotational position is reached, the arm 151 associated with the tension arm 144 is moved against the spring 152 by the pin 157 attached to the ring 93 immediately before reaching the second rotational position as shown in FIG. As seen in FIG. 1, the tension arm 144 is rotated counterclockwise as viewed in FIG. 1, and the tension arm 144 is rotated clockwise as viewed in FIG. The tape 27 moves to the right rear, thereby causing the tape 27 to move between the reel 17 - pin 149 - first position regulating pins 75 and 74 - second position regulating pins 86 and 8.
7-Pinch roller 98-Pin 106-Pin 109-A loop is formed that encircles the pin 117-pin 26-reel 18 of mechanisms 111-3, 111-2 and 111-1.

The tape loop in this case is the rotating magnetic head device 6.
Therefore, the tape 27 also covers the tape guide surface 67 of the rotating magnetic head device 60 as seen in FIG.
The tape 27 is mounted on the tape guide surface 67 by being in contact with the tape 27 over an area slightly larger than 1800 degrees when viewed from the surface 67 extending from the front left position to the rear right position. . With the tape 27 mounted on the tape guide surface 67, the upper and lower edges of the tape 27 are connected to the magazine M.
Pin 149 of inner reel 17 and tension arm 144
The space between the pins 149 and the position regulating pins 74 are approximately parallel to the main surface 2 of the main board 1.
4 and a position on the tape guide surface 67 of the rotary magnetic head device 60 on the rotating surface of the rotary magnetic heads 65 and 66 that is farthest from the main surface 2 or a position opposite thereto (this is referred to as Q1). In this case, it is approximately parallel to the main surface 2 of the main board 1, or as it approaches the main surface 2 as it reaches the latter position, it is slightly inclined with respect to the main surface 2, and the position Q1 and the position regulating pin 86 are In between, as it approaches the main surface 2 as it approaches the latter pin 86 side, it is inclined relatively greatly with respect to the main surface 2, and the pin 86
The slope between the pins 106 and 106 is approximately the same as the slope between the position Q1 and the pin 86, and the slope between the pins 106 and 109 is approximately the same as that between the pins 86 and 106, and the slope between the pins 109 and the mechanism 111- 3 pin 117 and mechanism 111-3 and 111-
Between the pins 117 of 2, the pins 117 of the mechanisms 111-2 and 111-1 move away from the main surface 2 and are inclined to the main surface 2. As it approaches the mechanism 111-1 side, it becomes further away from the main surface 2 and is inclined to the main surface or is substantially parallel to the main surface,
The pin 117 and pin 26 of the mechanism 111-1 are approximately parallel to the main surface 2.

The above-mentioned state in which the tape 27 is mounted on the tape guide surface 67 can be achieved extremely easily due to the presence of the pin 106 that is set on the pinch roller arm 101 provided on the ring 93.

The reason is that the outer peripheral surface of the pin 106 has a curved surface 107,
The curved surface 107 of the tape 27 is moved while the pin 106 moves from the position in the empty space 39 of the magazine M to the position farthest from the main surface 2 or in the vicinity thereof.
Apply force to the tape 27 (and pin 1) to keep the upper edge slightly closer to the main surface 2 or almost parallel to the main surface 2.
Comparison for bringing the upper side of the tape 27 closer to the main surface 2 side while moving to the position where the tape 06 is farthest from the main surface 2 or the closest position to the main surface 2, or the vicinity thereof. This is because a large amount of force is applied to the tape 27. As described above, the tape 27 is attached to the tape guide surface 6.
7, the pinch roller 98 rolls into contact with the capstan 131 with the tape 27 in between. For this reason tape 27
is transferred from the reel 17 side of the magazine M toward the 18 side at a constant speed. In this case, the tension arm 144 receives the tension of the tape 27 through a pin 149 attached thereto, and rotates to keep the tension of the tape 27 substantially constant without being restricted by the arm 151. However, the rotation range is maintained within a range in which the tape 27 does not stop covering the pin 75. Therefore, the tape 27 is conveyed while being brought into contact with the erasing head with a predetermined contact pressure. On the other hand, as the tension arm 144 rotates, the contact pressure of the brake unit 146 against the brake drum 141 changes, and the tension of the tape 27 is quickly returned to a predetermined range. In this way, the tape 27 maintains the tension within a predetermined range and rotates the magnetic head device 6.
The tape is transported at a constant speed while passing over and in contact with the tape guiding surface 67 of 0. During this time, an erasing signal is given to the erasing magnetic head 78, a video signal is given to the rotating magnetic heads 65 and 66, and a control When a control signal is applied to the magnetic head 83, a video signal is recorded on the magnetic tape 27 forming an oblique magnetization locus, and a control signal is recorded on the magnetic tape 27 by forming a magnetization locus parallel to the lower or upper edge of the tape 27. is formed and recorded.

If the magnetic tape 27 is capable of recording such video signals and control signals, these signals are reproduced by the magnetic heads 65, 67, and 83 while the erasing magnetic head 78 is inactive. When recording on or reproducing from the magnetic tape 27, the rotation of the capstan 131 is stopped and the tape 2
The process ends by stopping the transfer of step 7.

After recording on or reproducing from the magnetic tape 27 is completed, the rear engaging piece 97 is disengaged from the notch 96 of the ring 93, and the rear drive wheel 110 is driven in the opposite direction to the above-mentioned case, and the reel shaft is rotated. 38 is driven weakly, the ring 93 rotates counterclockwise from the second rotation position as seen in FIG. 1 and reaches the first rotation position. The mechanisms 111-1 to 111-3, etc. perform operations that are completely opposite to the above-mentioned case in which they rotated from the first position to the second rotational position. However, in this case, the arm 101 of the pinch roller 98 is on the cam surface 1 of the cam plate 103.
04, the pinch roller 98 is deflected more forward as seen in FIG.
8. In particular, the pinch roller 98 is smoothly brought to the back side of the magnetic tape 27 without being disturbed. In this way, the same state as when the magazine M is initially mounted on the mounting section 4 can be obtained. Therefore, from this state, the magazine M can be taken out from the mounting section 4. As described above, according to the present invention, the magazine mounting section 4 in which the magazine M containing the magnetic tape 27 is mounted, the rotating magnetic head device 60 having the magnetic tape guide surface 67, and the magazine mounting section 4 mounted on the magazine mounting section 4. A magnetic tape mounting means 81 pulls out the magnetic tape 27 from the magazine M and mounts it on the magnetic tape guide surface 67 of the rotating magnetic head device 60; magnetic tape 2
7 for regulating the position of the magazine mounting portion 4 side and the opposite side relative to the magnetic tape guide surface 67, respectively.
position regulating means 70 and 80, and the rotating magnetic head device 6.
The magnetic tape 27 mounted on the magnetic tape guide surface 67 of 0
The tape 1 driving means 82 for driving the magnetic tape 27 forms a magnetization locus extending at a predetermined inclination angle with respect to the longitudinal direction of the magnetic tape 27 to record video signals. In this case, the magazine M is a case body 1 that stores the magnetic tape 27.
The bottom plate 2 of the case body 11 has a tape drawer window 29 bored in the front plate 28 of the case body 11 and a notch 36 provided in the bottom plate 23 of the case body 11 in communication with the tape drawer window 29.
The rotary magnetic head device 60 is mounted on the magazine mounting section 4 with the rotary magnetic heads 65 and 66 facing the magazine mounting section 4 side. The magazine M is rotated on a virtual plane that is inclined at a first angle (approximately 5 degrees according to the above example) with respect to the main surface 2 of the main substrate 1 which is parallel to the reference plane 23. The magnetic tape mounting means 81 surrounds the rotating magnetic head device 60 and is arranged close to and facing the front plate 28 of the case body 11. It has a rotating ring 93 arranged to rotate between first and second rotating positions on a virtual plane inclined at an angle (approximately 100 according to the above example). In the first rotating position, this rotating ring 93 has a notch on the back side of the magnetic tape 27 in the goose body 11 of the magazine M mounted on the magazine mounting section 4, that is, on the hollow space 39. A tape drawer/guide pin 106 is provided through the tape 36,
In this case, the tape drawer/guide pin 106 or the position when the tape drawer/guide pin 106 is on the back side of the magnetic tape 27, that is, in the empty space 39 (when the rotating ring 93 is in the first rotating position). As the rotation ring 93 rotates, the upper edge of the magnetic tape 27 is moved to the position farthest from the main surface 2 serving as the reference surface or in the vicinity thereof. A component force is applied to the magnetic tape 27 to slightly bring it closer to the 2nd side or to keep it approximately parallel to the reference plane,
Further, from the position where the tape pull-out/guiding pin 106 is farthest from the main surface 2 serving as a reference surface, or the vicinity thereof, to the position where it is the closest position based on the rotation of the rotation ring 93, or the vicinity thereof. A curved outer circumferential surface 1 for applying a relatively large force to the magnetic tape in order to bring the upper edge of the magnetic tape 27 closer to the main surface 2 serving as a reference surface while moving.
07, and when the rotating ring 93 is rotated from the first rotating position to the second rotating position, the magnetic tape 27 from the magazine M mounted in the magazine mounting section 4 is transferred to the tape. Tape drawer and guide pin 1 through the drawer window 29
At step 06, the magnetic tape 27 is pulled out, and the magnetic tape 27 is mounted obliquely on the magnetic tape guide surface 67 of the rotating magnetic head device 60, surrounding the first and second position regulating means 70 and 80.
Thus, at the second rotational position of the rotation ring 93, the magnetic tape 2
7 is guided by the magnetic tape guide surface 67 of the rotating magnetic head device 60 and is driven by the tape drive means 82, and the magazine M and the magnetic tape mount can easily draw out the magnetic tape 27 from the magazine M. The magnetic tape mounting means 81 has a configuration in which the means are correlated with each other, and the magnetic tape mounting means 81 loads the magnetic tape 27 onto the magnetic tape guide surface 67 of the rotating magnetic head device 60.
Although it has a curved outer circumferential surface 107, the magnetic tape from the magazine M can be smoothly and easily rotated by the magnetic head device. It has a great feature that it can be mounted on the magnetic tape guide surface 67 of 60.

[Brief explanation of the drawing]

1 is a plan view showing an example of a magnetic recording/reproducing device according to the present invention, FIG. 2 is a left side view thereof, FIG. 3A is a plan view showing an example of a magazine applicable to the present invention, and FIG. B is a front view, FIG. 3C is a sectional view taken along line C-C of FIG. 3A, and FIG.
Figure A is a plan view showing an example of a sub-board that can be applied to the present invention;
Figure 4B is the fourth line in the direction perpendicular to line L1 in Figure 4A.
It is a side view seen from the lower left side of figure A. In the figure, 1 is the main board, 2 is the main surface, 4 is the magazine attachment part, 5 is the sub board, M is the magazine, 11 is the case body, 17 is the supply reel, 18 is the take-up reel, 19 is the top plate, and 23 is Bottom plate, 24 and 25 are guide pins, 27 is a magnetic tape, 28 is a front plate, 29 is a tape drawer window, 30 and 31 are left and right side plates, 36 is a notch, 39 is a blank space, 51, 52 and 53 60 is the rotating magnetic head device, 65 and 66 are the rotating magnetic heads, 67 is the tape guide surface, and 70 and 80 are the first and second mounting surfaces, respectively. position regulating means; 81, tape mounting means; 82, tape driving means; 9;
3 is a rotating ring, 98 (with a pinch row) 101 is a rotating arm, 102 (1 spring, 104 is a cam plate, 106 is a tape drawer and guide pin, 111-1 to 111-3 are tape guide mechanisms, 116 is a Rotation shaft, 117 is a tape guide pin,
118 is an engagement roller, 119 is a rod, 120 and 121 are springs, 131 is a capstan, 144 is a tension arm, 149 is a tape guide pin, and 154 is a spring.

Claims (1)

[Claims] 1. A magazine mounting section into which a magazine containing a magnetic tape is mounted, a rotating magnetic head device having a magnetic tape guide surface, and a rotating magnetic head device that pulls out the magnetic tape from the magazine mounted in the magazine mounting section and transfers it to the rotating magnetic field. A magnetic tape mounting means mounted on the magnetic tape guide surface of the head device, and a side of the magazine mounting portion of the magnetic tape mounted on the magnetic tape guide surface of the rotary magnetic head device relative to the magnetic tape guide surface. The first and second position regulating means for regulating the positions on the opposite side, respectively, and the tape driving means for driving the magnetic tape mounted on the magnetic tape guide surface of the rotary magnetic head device are reduced. Also equipped with
In the magnetic recording and reproducing apparatus, the magazine is configured to record and reproduce video signals by forming a magnetization locus extending at a predetermined inclination angle with respect to the longitudinal direction of the magnetic tape. The case body has a tape draw-out window formed in the front plate of the case body in which the magnetic tape is stored, and a notch provided in the bottom plate of the case body in communication with the tape draw-out window. The rotating magnetic head device is configured to be mounted on the magazine mounting section with the bottom plate facing the magazine mounting section, and the rotating magnetic head device has a reference parallel to the bottom plate of the magazine mounted on the magazine mounting section. The magnetic tape mounting means is disposed close to and facing the front plate of the case body of the magazine so as to rotate on a virtual plane inclined at a first angle with respect to the plane, and the magnetic tape mounting means is arranged to rotate on a virtual plane inclined at a first angle with respect to the plane. first and second surfaces arranged so as to rotate on an imaginary plane that surrounds and tilts at a second angle with respect to the reference plane;
The rotating ring is configured to rotate between rotational positions, and the rotating ring has a rotating ring configured to rotate between two rotational positions, and the rotating ring has a rotation ring configured to rotate between two rotational positions, and in the first rotational position, the rotation ring has a rotation ring that is attached to the case body of the magazine mounted in the magazine mounting portion. A tape pull-out/guide pin is provided on the back side of the magnetic tape through the notch, and the tape pull-out/guide pin is in a position when the tape pull-out/guide pin is on the back side of the magnetic tape. Therefore, while moving the rotating ring to a position farthest from the reference surface or in the vicinity thereof, the upper edge of the magnetic tape is brought slightly closer to the reference surface side, or the upper edge of the magnetic tape is moved slightly closer to the reference surface side. A component force is applied to the magnetic tape to keep it approximately parallel to the reference plane, and the rotation ring is rotated from a position where the tape pull-out/guiding pin is farthest from the reference plane or in the vicinity thereof. Applying a relatively large component force to the magnetic tape in order to bring the upper edge of the magnetic tape greatly closer to the reference surface side while moving to the closest position based on the above, or in the vicinity thereof. When the rotating ring is rotated from its first rotating position to its second rotating position, magnetic tape from the magazine mounted in the magazine mounting section is removed. is pulled out by the tape pull-out/guide pin through the tape pull-out window, and the magnetic tape is mounted diagonally on the magnetic tape guide surface of the rotary magnetic head device, surrounding the first and second position regulating means. The magnetic tape is suspended in a second rotating position of the rotary ring so that the magnetic tape is guided by the magnetic tape guide surface of the rotary magnetic head device and driven by the tape drive means. A magnetic recording and reproducing device characterized by the following.