JPH06139665A - Magnetic tape guide device - Google Patents

Abstract

PURPOSE:To keep the edge parts of a magnetic tape free from regulation in the midst of loading the tape as a tape guide member is on the way to a rotary drum. CONSTITUTION:The tape guide member 42 is a magnetic tape abutting part 42b of a cylindrical shape for abutting the magnetic tape T, whose upper and lower end parts are partly projectively formed with an upper flange part 42a and a lower flange part 42c to be opposite to each other for regulating the upper and lower edge parts of the magnetic tape T. This tape guide member 42 is freely turnably supported on a loading base 41. Then, the outer circumference of a 1st supporting part 41d of the tape guide member 42 is fixed with a gear 43, and this gear 43 is capable of freely approachably and detachably meshing with a rack 44 provided along the vicinity of a trailing end of a guide groove 22 on the side of the rotary drum 21. Then, in the midst of tape loading operation of the tape guide member 42, the upper flange part 42a and the lower flange part 42c are turned to evade from the edge parts of the magnetic tape T.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to recording and / or recording by winding a magnetic tape spirally around a rotary drum at a predetermined angle.
In addition, the present invention relates to a magnetic recording and / or reproducing apparatus for reproducing, and more particularly to a magnetic tape guiding apparatus for guiding a magnetic tape in the direction of a rotating drum at the time of tape loading.

[0002]

2. Description of the Related Art In recent years, video tape recorders (VT
R), rotary digital audio tape recorder (R-DAT) and other magnetic recording and / or reproducing devices
Both the stationary type and the portable type have been remarkably reduced in size and weight. Along with this, the tape cassette used in the magnetic recording and / or reproducing apparatus has been downsized, and since high density recording has been achieved on the magnetic tape, the magnetic tape becomes thin and the rigidity becomes low. It is a tendency.

Generally, in the above magnetic recording and / or reproducing apparatus, a magnetic tape is pulled out from a tape cassette, and the magnetic tape is rotated while being spirally wound around a rotary drum having a magnetic head at a predetermined angle. It is known to record and / or reproduce by helical scanning with a magnetic head.

FIG. 11 is a block diagram showing a conventional magnetic recording and / or reproducing apparatus. FIG. 11A shows a tape unloading state, FIG. 11B shows a tape loading completion state, and FIG. FIG. 11 is an enlarged view of the tape guide member supported by the loading base shown in FIG. 11, and FIG. 13 is a view showing a state where a magnetic tape is abnormally attached to the tape guide member shown in FIG. Yes, (A) shows a state where the magnetic tape buckles at the flange portion, and (B) shows a state where the magnetic tape rides on the flange portion.

In the conventional magnetic recording and / or reproducing apparatus 10 (hereinafter also referred to as the apparatus main body 10) shown in FIG. 11A, a magnetic tape T is provided on the front side of the chassis base 11 in the apparatus main body 10. The stored tape cassette 1 is mounted. This tape cassette 1 is a magnetic tape T that has been ejected from a supply reel 2 in a tape unloading state.
On the front side of the tape guides 3 and 4 on the feeding side and the winding side
And is wound around the take-up reel 5.

Further, an opening 1a is formed on the front side of the tape cassette 1 by sandwiching the tape guide 3 on the supply side and the tape guide 4 on the take-up side, and the bottom side of the tape cassette 1 is largely thinned. The opening 1a is formed. A plurality of tape loading constituent members on the apparatus main body 10 side for pulling out the magnetic tape T to a predetermined tape path outside the tape cassette 1 are standing by at the illustrated positions.

Here, for example, as a plurality of tape loading components on the apparatus main body 10 side, a tension roller 13 supported by a tension arm 12 on the supply side and a tape guide member with a flange supported on a loading base 14A. 15A and the inclined pole 16A form the opening 1
On the other hand, on the winding side, on the winding side, a tilted pole 16B supported by a loading base 14B and a tape guide member 15B with a flange, a pinch roller 18 supported by a pinch roller arm 17, and a tick-up roller arm. The tick-up roller 20 supported by 19 enters into the opening 1a.

Further, in the back of the chassis base 11,
A rotary drum 21 provided with a magnetic head (not shown) is rotatably provided, and the loading bases 14A and 14B are guided to the left and right around the rotary drum 21 from the opening 1a toward the rotary drum. Guide grooves 22A, 2
2B is formed, and further to the right of the rotary drum 21, there is provided a capstan 23 that runs while sandwiching the magnetic tape T between the pinch roller 18.

Then, as shown in FIG. 11 (B), the above-mentioned tape loading components that have entered the opening 1a of the tape cassette 1 during tape unloading are moved to their respective predetermined positions during tape loading.
The magnetic tape T is spirally wound around the rotary drum 21 at a predetermined angle and is loaded in a predetermined tape path, and the magnetic tape T is attached to the pinch roller 18 and the capstan 2.
Recording and / or reproduction is performed by a magnetic head (not shown) that runs while being sandwiched between the magnetic head 3 and the rotary drum 21.

[0010]

By the way, in the above-described conventional magnetic recording and / or reproducing apparatus 10, as shown in FIG.
As shown in the enlarged view of FIG. 1, a tape guide member 15 (15A,
15B) includes a magnetic tape attachment portion 15b to which the magnetic tape T abuts, a circular upper flange portion 15a, a circular lower flange portion 15c that regulate the upper and lower ends of the magnetic tape T, and a support portion 15d. Therefore, the length of the magnetic tape attachment portion 15b between the upper flange portion 15a and the lower flange portion 15c is
The width W of the magnetic tape T is substantially equal to the width W of the magnetic tape T. still,
Threaded portion 15c ₁ formed on the lower end of the lower flange portion 15c is used for adjusting the magnetic tape height.

This tape guide member 15 (15A, 15
When (B) reaches the tape loading completion position shown in FIG. 11 (B), the tape guide member 15 is at a predetermined position along the theoretical tape path and at a predetermined height with respect to the rotary drum 21. Since it is held, for example, even when the thin magnetic tape T is run, the upper and lower flange portions 15b and 15c of the tape guide member 15 regulate the upper and lower sides of the tape guide member 15 as shown in FIG. It can be spirally wound at a height position and at a predetermined angle without any problem. The height position with respect to the rotary drum 21 is set on the supply side and the winding side, respectively.

However, the tape guide member 15 (15
(A, 15B) moves from the tape unloading state shown in FIG. 11 (A) to the tape loading complete state shown in FIG. 11 (B), the tape guide member 15 has a theoretical vertical height during tape loading. There is a possibility that it will deviate more greatly, in which case the following problems often occur. That is, the upper flange portion 15a causes the upper end portion of the magnetic tape T to buckle as shown in FIG. 13A, or the magnetic tape T is attached to the upper flange portion 15a as shown in FIG. 13B. It may happen that the upper end of the vehicle runs over. Of course, although not shown, the same phenomenon may occur on the lower flange portion 15c side. Therefore, due to the flange buckling phenomenon of the magnetic tape T and the flange climbing phenomenon of the magnetic tape T, tape damage occurs, which adversely affects recording and / or reproduction and deteriorates the durability of the magnetic tape T. There are problems such as. Particularly, when the thickness of the magnetic tape T becomes thin as high density recording is performed on the magnetic tape T, tape damage is remarkable due to the buckling phenomenon of the flange portion of the magnetic tape T and the phenomenon of climbing the flange portion of the magnetic tape T. Has become.

[0013]

The present invention has been made in view of the above problems. The first invention is magnetic recording and / or
Alternatively, a tape guide member is erected on a loading base that moves along a guide groove provided on the shear base of the reproducing device, and the tape guide member is attached to the tape guide member while attaching a magnetic tape to the tape guide member. A magnetic tape guide device for spirally winding a magnetic tape on a rotary drum at a predetermined angle by moving the magnetic tape from a loading position toward the rotary drum, the magnetic tape guide device having a magnetic tape attachment portion and the magnetic tape attachment portion. A flange part is formed at the end of the contact part so as to project like a collar, and the tape guide member is rotatably supported by the loading base via the support part, and the tape guide member is at the position immediately before the completion of tape loading. When reaching, a tape guide member rotating means for rotating the direction of the flange of the flange portion formed on the tape guide member with respect to the loading base. The tape guide member is configured to avoid the flange of the flange from the end of the magnetic tape during tape loading while the tape guide member moves in the tape unloading position and the rotating drum direction, and the tape guide member When the position immediately before the completion of loading is reached, the flange portion is rotated by the tape guide member rotating means, and the end portion of the magnetic tape is regulated by the flange of the flange portion. It is a tape guide device.

According to a second aspect of the present invention, in claim 1, the tape guide member rotating means comprises a rotary member fixed to a support portion of the tape guide member, and the guide groove end just before the completion of tape loading. A magnetic tape guide device characterized by being configured to engage and disengage with an engaging member provided in the vicinity thereof.

According to a third aspect of the present invention, in the first and second aspects, the support portion of the tape guide member is divided into first and second support portions in two upper and lower stages, and the rotating member is provided. The fixed upper first support portion is rotatably supported by the lower second support portion, and the second support portion is screwed into the loading base to be fixed to the second support portion. The magnetic tape guide device is characterized in that the height of the tape guide member can be adjusted by rotating the gear.

Further, in the fourth invention, a tape guide member is provided upright on a loading base which moves along a guide groove provided on the shear base of the magnetic recording and / or reproducing apparatus,
A magnetic tape guide for spirally winding the magnetic tape around the rotary drum at a predetermined angle by moving the tape guide member from the tape unloading position toward the rotary drum while attaching the magnetic tape to the tape guide member. An apparatus having a magnetic tape splicing part, a flange part projectingly formed in a flange shape at an end of the magnetic tape splicing part, and the flange part of the flange part is positioned in a predetermined direction. And a tape guide member supported by the loading base, and the flange portion formed on the tape guide member by rotating the loading base when the tape guide member reaches a position immediately before completion of tape loading. And a loading base rotating means for changing the direction of the flange of the tape guide member, wherein the tape guide member is at a tape unloading position and a rotation position. During the tape loading moving in the drum direction, the flange of the flange is avoided from the end of the magnetic tape, and when the tape guide member reaches the position immediately before the completion of the tape loading, the loading base rotating means is used. The magnetic tape guide device is characterized in that the loading base is rotated so that an end portion of the magnetic tape is regulated by a flange of the flange portion.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a magnetic tape guide device according to the present invention will be described below with reference to FIGS. 1 to 10 <magnetic tape guide device of first embodiment>, <magnetic tape guide device of second embodiment>>,<Magnetic tape guide device of the third embodiment> in this order.

<Magnetic Tape Guide Device of First Embodiment> FIG. 1
FIG. 3 is a configuration diagram showing a magnetic recording and / or reproducing apparatus adopting the magnetic tape guide device of the first embodiment according to the present invention, and FIG. 3A is a diagram showing a tape unloading state and a tape loading intermediate state, FIG. 2B is a diagram showing a tape loading completion state, and FIG. 2 is a first diagram according to the present invention.
It is the figure which showed the structure of the magnetic tape guide apparatus of an Example, and expanded the tape loading intermediate state of the same magnetic tape guide apparatus, (A) is a top view, (B) is a side view, and FIG. It is the figure which expanded and showed the tape loading completion state of the same magnetic tape guide device, (A) is a top view,
4B is a side view, FIG. 4 is an enlarged view showing a state where the magnetic tape is in contact with the tape guide member during tape loading, FIG. 4A is a top view, and FIG.
5A and 5B are enlarged views showing a state where the magnetic tape is attached to the tape guide member when the tape loading is completed. FIG. 5A is a top view and FIG. 5B is a side view.

The magnetic tape guide device 40 (4 of the first embodiment
0A, 40B) are tape guide members 15 (15A, 15B) with flanges which are respectively supported by the pair of loading bases 14 (14A, 14B) in the magnetic recording and / or reproducing apparatus 10 described in the conventional example. ), And a pair is provided on the supply side and the winding side. For convenience of explanation, the same components as those of the above-described conventional example are designated by the same reference numerals, and the above-described components are appropriately described as necessary. Components different from the above will be described with new reference numerals.

In the magnetic recording and / or reproducing apparatus 30 which employs the magnetic tape guide device 40 (40A, 40B) of the first embodiment shown in FIGS. 1A and 1B, the rotary drum is mounted on the chassis base 11. 21, a magnetic tape guide device 40A is provided in a guide groove 22A on the supply side so as to be movable in the rotating drum direction, while a guide groove 22B on the winding side is provided.
A magnetic tape guide device 40B is provided at the position movably in the direction of the rotary drum. Also, loading base 41
(41A, 41B) has the same inclination pole 16 as above.
(16A, 16B) are supported, but the inclined pole 16 is provided for spirally winding the magnetic tape T around the rotary drum 21 at a predetermined angle, and is not necessarily provided on the loading base 41. It does not need to be attached and may be installed, for example, in the vicinity of the magnetic tape inlet and outlet of the rotary drum 21, and is not shown in the following description.

The magnetic tape guide device 40 (40A, 40B) of the first embodiment will be described with reference to FIGS. In the figure, the auxiliary code A indicates the supply side and the auxiliary code B indicates the winding side. In the following description, the auxiliary codes A and B will be omitted.

In FIG. 2, the tape guide member 4 is provided on the upper surface of the loading base 41 fitted in the guide groove 22.
2 is rotatably provided upright. This tape guide member 4
As shown in a partially enlarged view of FIG. 4, the reference numeral 2 indicates that the upper end of the magnetic tape T is temporarily raised to the upper and lower ends of the cylindrical magnetic tape contact portion 42b with which the magnetic tape T is abutted. An upper flange portion 42a for restricting and a lower flange portion 42c for temporarily restricting the height of the lower end portion of the magnetic tape T are opposed to each other and are partially formed in a flange shape. These upper flange parts 4
The flanges that partially project in the flange shape on the 2a and the lower flange portion 42c will be described below as the upper flange collar portion 42a and the lower flange collar portion 42c. In addition, the upper flange collar 42
a and the upper flange collar 42c, the taper portions 42a ₁ , 42a ₁ , respectively at the entrances so that the magnetic tape T can be easily inserted or removed.
42c ₁ is formed. In addition, the tape guide member 42
Upper flange collar 42a, magnetic tape attachment portion 4
2b, the lower flange collar portion 42c is formed by integrally forming the three members 42a to 42c, and the upper flange collar portion 42a and the lower flange collar portion 42c are opposed to each other via a relay shaft (not shown). There is a case where 42a and 42c are connected and only the magnetic tape contact portion 42b is rotated around the relay shaft, whichever is acceptable.

Further, in the upper flange collar portion 42a and the lower flange collar portion 42c, the magnetic tape T can be affixed to the portions that are not formed to project in a brim-like shape on substantially the same line as the extension line of the magnetic tape abutment portion 42b. Magnetic tape attachment part 4
2a ₂ and 42c ₂ are formed, and the magnetic tape T is attached to the magnetic tape contact portions 42a ₂ , 42b and 42 as described later.
The upper and lower ends of the magnetic tape T are not regulated in the height direction when the magnetic tape T is attached to the c ₂ . On the other hand, the upper flange collar portion 42a and the lower flange collar portion 42 which are formed to project like a collar.
The length L of the magnetic tape abutment portion 42b between the magnetic tape T and c is formed to have substantially the same size as the width W of the magnetic tape T. Upper and lower end portions are restricted in the height direction between the upper flange collar portion 42a and the lower flange collar portion 42c.

Returning to FIG. 2 again, the tape guide member 42
In order to rotatably support the loading base 41, the lower flange collar portion 42c side is integrally fixed to the cylindrical first supporting portion 42d, and the first supporting portion 42d is further fixed.
The lower end side of is rotatably supported by the cylindrical second support portion 42e, and the second support portion 42e is supported by the loading base 41. That is, the support portion of the tape guide member 42 is divided into upper and lower two stages of first and second support portions 42d and 42e with respect to the loading base 41. That is, the stepped rotary shaft portion 42d ₁ formed in the upper first support portion 42d is rotatably supported in the shaft hole 42e ₁ formed through the center of the lower second support portion 42e. Has been done,
In addition, the screw portion 42e formed on the lower second support portion 42e
₂ is screwed into a screw hole 41a formed in the loading base 41. Incidentally, the stepped rotary shaft portion 42d ₁ of the first support portion 42d is provided with an E ring (not shown) at the lower end of the stepped rotary shaft portion 42d ₁ so as not to come off from the shaft hole 42e ₁ of the second support portion 42e. No)) is fitted.

A first gear 43 serving as a rotating member is coaxially fixed to the outer periphery of the upper first support portion 42d, and the first gear 43 is guided by the guide groove 22 on the rotary drum 21 side.
The rack 44, which is an engaging member provided along the vicinity of the end of the tape, can be engaged (engaged) with the rack 44 so that the tape guide member 42 can be engaged and disengaged. The structure is such that it can be rotated around the moving shaft portion 42d ₁ and the shaft hole 42e ₁ , and the orientation of the upper flange collar portion 42a and the lower flange collar portion 42c can be changed by the rotation of the tape guide member 42. Therefore, in the first embodiment, the first gear 43 fixed to the first support portion 42d and the rotary drum 21
A rack 44 provided along the vicinity of the end of the side guide groove 22 serves as a tape guide member rotating means for rotating the tape guide member 42 with respect to the loading base 41.

Further, a second gear 45 having a diameter slightly larger than that of the first gear 43 is coaxially fixed to the outer periphery of the lower second support portion 42e. The gear 46a of the tape height adjusting jig 46 can be meshed with each other, and when the gears 45 and 46 mesh with each other,
The tape guide member 42 has a structure in which the height direction of the magnetic tape T can be adjusted by screwing.

Next, the operation of the magnetic tape guide device 40 (40A, 40B) of the first embodiment having the above-mentioned configuration will be described with reference to FIG.
It will be described with reference to FIGS.

First, as shown in FIGS. 1A, 2 and 4, the magnetic tape guide device 40 rotatably supported by the loading base 41 is inserted into the opening 1a of the tape cassette 1. During the waiting tape unloading state and during the tape loading in which the magnetic tape T is pulled out from the tape cassette 1 and moved in the direction of the rotary drum, the orientations of the upper flange collar portion 42a and the lower flange collar portion 42c of the tape guide member 42 are set to the loading base. Since it is avoided from the magnetic tape T in a direction substantially opposite to the traveling direction of the space 41, the pulled-out magnetic tape T is attached to the magnetic tape attachment portions 42a ₂ and 42c ₂ which are not formed to project like a brim. will be able to contact, thereby the magnetic tape T, the magnetic tape spliced portion 42a 2 in accordance with the width, _42b or magnetic tape spliced portion 42 Since bears against the 42c _2, so the upper and lower ends of the magnetic tape T is not restricted in the height direction.

After that, when the tape guide member 42 supported by the loading base 41 along the guide groove 22 approaches the rotating drum 21 and reaches the position immediately before the completion of the tape loading, the tape guide member 42 shown in FIGS. As shown in FIG.
The first fixed to the first support portion 42d of the tape guide member 42
When the gear 43 meshes with the rack 44 provided along the vicinity of the end of the guide groove 22 on the rotary drum 21 side, the tape guide member 42 causes the stepped rotation shaft portion 42d ₁ and the shaft hole 42e.
It rotates clockwise (in the direction of the arrow) depending on the state in which it is attached to the shaft ₁ . By the rotation of the tape guide member 42, the upper flange flange 42a and the lower flange flange 42c face the traveling direction of the loading base 41.
The upper and lower ends of the magnetic tape T abutting on b are restricted in height in the vertical direction by the upper flange flange 42a and the lower flange flange 42c, that is, the upper and lower ends of the magnetic tape T are attached to the rotary drum 21. On the other hand, the height is regulated. This allows
The magnetic tape T can be wound around the rotary drum 21 at a predetermined height position as in the conventional case.

When recording and / or reproduction is completed and the magnetic tape T is stored in the tape cassette 1 again,
Tape guide member 4 supported by loading base 41
2 returns to the direction of the tape cassette 1 along the guide groove 22,
In addition, in the vicinity of the rotary drum 21, the first gear 43 fixed to the first support portion 41d returns while rotating in the counterclockwise direction (the direction opposite to the arrow direction) while meshing with the rack 44, and thus the first gear 43 in FIG. Return to the state again.

In the first embodiment, the magnetic tape T
As a method of regulating the end portions of the magnetic tape T, the upper end portion and the lower end portion of the magnetic tape T are attached to the upper flange collar portion 42a and the lower flange collar portion 42, respectively.
Although it is described that the restriction is performed simultaneously with c, there is no limitation to this, and there is also a method of restricting only one of the upper end and the lower end of the magnetic tape T. In this case, only the end on the restricting side is used. An upper flange collar portion 42a or a lower flange collar portion 42c may be appropriately provided so as to be able to regulate when the position just before the completion of tape loading is reached.

When adjusting the running height of the magnetic tape T on the production line, as shown in FIG. 3, the rack 44 is provided with the first gear 43 fixed to the first support portion 41d of the tape guide member 42. At the position where it meshes with the loading base 4
The magnetic tape height adjusting jig 46 is provided in the hole 41b formed in
Second gear 45 in which the tip end of the magnetic tape is inserted and the gear 46a of the jig for magnetic tape height adjustment 46 is fixed to the second support portion 41e.
By engaging the second gear 45, the entire tape guide member 42 is screwed into the screw portion 42e ₂ and the screw hole 41.
The height of the magnetic tape T can be adjusted by moving it up and down via a. At this time, since the first gear 43 is meshed with the rack 44, the height of the tape guide member 42 can be adjusted without rotating the upper flange collar portion 42a and the lower flange collar portion 42c. As described above, the traveling height adjustment of the magnetic tape T is not affected by the rotational directions of the upper flange collar portion 42a and the lower flange collar portion 42c of the tape guide member 42,
There is an advantage that the height of the magnetic tape T can be adjusted.

In the magnetic tape guide devices 40 (40A, 40B) on the supply side and the winding side, which are constructed as described above,
While the tape guide member 42 is in the tape unloading state and while the tape is being loaded toward the rotating drum,
Even if the magnetic tape T abutting on the tape guide member 42 deviates from the height of the theoretical tape path, the upper and lower ends of the magnetic tape T are not restricted by the upper flange collar portion 42a and / or the lower flange collar portion 42c. Since it is avoided, the tape buckling phenomenon due to the flange portion buckling phenomenon of the magnetic tape T and the flange climbing phenomenon of the magnetic tape T unlike the prior art does not occur. As a result, the recording and / or reproducing on the magnetic tape T is favorably performed in the magnetic recording and / or reproducing apparatus 30, and the durability of the magnetic tape T is improved. Further, as high-density recording is performed on the magnetic tape T, even if the thickness of the magnetic tape T becomes thin, no trouble occurs during tape loading. Further, when designing the magnetic recording and / or reproducing apparatus 30, it is not necessary to strictly follow the height of the magnetic tape T during tape loading,
The degree of freedom in designing the magnetic recording and / or reproducing device 30 is increased. Further, the magnetic tape guiding device 40 (4
0A, 40B) has a simple structure, and thus has an advantage that highly reliable tape loading can be performed. Of course, when the tape guide member 42 reaches the tape loading completion position, the end portion of the magnetic tape T is regulated by the upper flange collar portion 42a and / or the lower flange collar portion 42c, so that the magnetic tape T is attached to the rotary drum 21. On the other hand, it can be wound at a predetermined height as in the conventional case.

<Magnetic Tape Guide Device of Second Embodiment> FIG. 6
2A and 2B are views showing a configuration of a magnetic tape guide device of a second embodiment according to the present invention and an enlarged view of a state of tape loading of the magnetic tape guide device. FIG. FIG. 7 is a side view, FIG. 7 is an enlarged view showing a tape loading completion state of the magnetic tape guiding device, (A) is a top view, and (B) is a side view.

The magnetic tape guide device 50 (5 of the second embodiment
0A, 50B) is the same as the magnetic tape guide device 40 (40A, 40B) of the first embodiment described above, and the tape guide member 42 (42A, 42B) is loaded into the loading base 4.
1 (41A, 41B) has the same technical idea of rotatably supporting it, but the tape guide member rotating means for rotating the tape guide member 42 is different. For convenience of explanation, description of the constituent members having the same functions as those of the first embodiment will be omitted, and only constituent members of the functions different from those of the first embodiment will be described. Also in this second embodiment,
The auxiliary code A indicates the supply side and the auxiliary code B indicates the winding side. In the following description, the auxiliary codes A and B will be omitted.

In the magnetic tape guide device 50 (50A, 50B) of the second embodiment shown in FIGS. 6 and 7, the upper flange collar portion 42a, the magnetic tape splicing portion 42b, and the lower flange constituting the tape guide member 42 are formed. Collar portion 42c, first support portion 42
d, the second support portion 42e is formed similarly to the first embodiment. Here, the difference from the first embodiment is that a pin 51 serving as a rotating member is projected and fixed to the outer periphery of the first support portion 42d of the tape guide member 42, and this pin 51 is fixed to the rotary drum 2
Engaging member 5 provided along the vicinity of the end of the guide groove 22 on the first side
2 can be engaged and disengaged freely, and both 5
When 1, 52 are engaged, the tape guide member 42 can rotate around the stepped rotation shaft portion 42d ₁ and the shaft hole 42e ₁ , and the rotation of the tape guide member 42 causes the upper flange collar portion 42a and the upper flange collar portion 42a to rotate. The structure is such that the direction of the lower flange collar 42c can be changed. Therefore, in the second embodiment, the pin 51 fixed to the first supporting portion 42d and the engaging member 52 provided along the vicinity of the end of the guide groove 22 on the rotary drum 21 side load the tape guide member 42. It is a tape guide member rotating means that rotates with respect to the roller 41. The first support portion 41d of the tape guide member 42 is always biased in the counterclockwise direction (arrow direction) in FIG. 6 by a torsion spring (not shown) or the like.

Next, the operation of the magnetic tape guiding device 50 (50A, 50B) of the second embodiment having the above construction will be described with reference to FIGS. 6 to 7.

First, as shown in FIG. 6, the magnetic tape guide device 50 waits in the opening 1a of the tape cassette 1 (FIG. 1) in the tape unloading state, and the magnetic tape guide device 50 causes the magnetic tape guide device 50 to move magnetically from the tape cassette 1. During the tape loading process in which the tape T is pulled out and moved in the direction of the rotary drum, the upper flange collar portion 42a of the tape guide member 42 is formed.
Since the lower flange collar portion 42c is oriented in a direction avoiding the magnetic tape T, the pulled-out magnetic tape T is not formed in a flange shape.
a ₂ and 42 c ₂ can be attached to the magnetic tape T, so that the magnetic tape T can be attached to the magnetic tape attachment portion 42 depending on its width.
a _2, 42b or magnetic tape spliced portion 42b, since bears against the 42c _2, are not restricted end of the magnetic tape T in the height direction.

After that, when the tape guide member 42 supported by the loading base 41 approaches the rotating drum 21 along the guide groove 22 and reaches the position immediately before the completion of the tape loading, as shown in FIG. First guide member 42
The pin 51 fixed to the support portion 42d engages with the engaging member 52 provided along the vicinity of the end of the guide groove 22 on the rotary drum 21 side, so that the tape guide member 42 has the stepped rotation shaft portion 42d _1. , It rotates clockwise (in the direction of the arrow) depending on the state of being attached to the shaft hole 42e ₁ . By the rotation of the tape guide member 42, the upper flange collar 42a and the lower flange collar 4 are
2c and 2c face in the traveling direction, the magnetic tape attachment portion 42b
The upper and lower end portions of the magnetic tape T which are attached to the magnetic tape T are regulated in the height direction by the upper flange collar portion 42a and the lower flange collar portion 42c. Regulated to a certain height. As a result, the magnetic tape T can be wound around the rotary drum 21 at a predetermined height position as in the conventional case.

The magnetic tape guide device 50 of the second embodiment.
It is obvious that (50A, 50B) can obtain the same effect as that of the magnetic tape guiding device 40 (40A, 40B) of the first embodiment.

<Magnetic Tape Guide Device of Third Embodiment> FIG.
6A and 6B are views for explaining the configuration and operation of the magnetic tape guide device according to the third embodiment of the present invention, where FIG. 6A shows a tape unloading state, FIG. FIG. 9C is a diagram showing a tape loading completion state, and FIG. 9 is an enlarged diagram showing a tape loading process state of the magnetic tape guiding device.
(A) is a top view, (B) is a side view, FIG. 10 is an enlarged view showing a tape loading completed state of the magnetic tape guide device, (A) is a top view, and (B) is a side view. Is.

The magnetic tape guide device 60 of the third embodiment is
Similar to the first and second embodiments, the technical idea of not restricting the end of the magnetic tape T in the tape unloading state and the tape loading state is provided, but here, the tape guide member is not rotated, The loading base supporting the tape guide member is configured to rotate. For convenience of explanation, in the magnetic tape guide device 60 of the third embodiment, only the state of being provided on the supply side will be described, and a winding side substantially symmetrical to the supply side may be provided if necessary.
Illustration and description are omitted.

In the magnetic tape guide device 60 of the third embodiment shown in FIGS. 8 to 10, a tape guide member 62 is provided upright on the upper surface of the loading base 61 on the supply side. The tape guide member 62 has an upper flange portion 62a for temporarily controlling the height of the upper end portion of the magnetic tape T at the upper and lower end portions of the cylindrical magnetic tape attachment portion 62b with which the magnetic tape T is abutted.
Also, lower flange portions 62c for temporarily controlling the height of the lower end portion of the magnetic tape T are formed so as to partially face each other and project in a brim shape. The flanges that partially project in a flange shape on the upper flange portion 62a and the lower flange portion 62c will be described below as the upper flange collar portion 62a and the lower flange collar portion 62c. Further, the upper flange collar portion 62a and the lower flange collar portion 62c are formed with taper portions 62a ₁ and 62c _{1 at} their entrances so that the magnetic tape T can be easily inserted or removed. Further, the lower flange collar 62c side is provided with the support portion 62c.
The supporting portion 62d is fixed to the loading base 61. At this time, the upper flange collar portion 62
The orientations of "a" and the lower flange collar portion 62c are positioned in a predetermined direction so as to project in a direction substantially opposite to the traveling direction of the loading base 61 in the rotating drum direction.
The lower flange collar portion 62c may be extended to the loading base 61 side and directly fixed to the loading base 61. Further, the upper flange collar portion 62a, the magnetic tape splicing portion 62b, and the lower flange collar portion 6 which constitute the tape guide member 62.
2c includes a case where the three members 62a to 62c are integrally formed, and a case where the upper flange collar portion 62a and the lower flange collar portion 62c are opposed to each other via a relay shaft (not shown) 62a, 6a.
There is a case where 2c is connected and only the magnetic tape contact portion 62b is rotated around the relay shaft, whichever is acceptable.

Further, in the upper flange collar portion 62a and the lower flange collar portion 62c, the magnetic tape T can be affixed to the portions which are not formed to project in a brim shape on substantially the same line as the extension line of the magnetic tape abutment portion 62b. Magnetic tape attachment part 6
2a ₂ and 62c ₂ are formed, and the magnetic tape T is attached to the magnetic tape contact portions 62a ₂ , 62b and 62 as described later.
The upper and lower ends of the magnetic tape T are not regulated in the height direction when the magnetic tape T is attached to the c ₂ .

A guide groove 63 for guiding the loading base 61 is formed in a bifurcated shape near the end on the rotary drum 21 side, that is, from a single guide groove 63a to a bifurcated guide groove 63b. , 63c are branched, the guide groove 63b is formed to approach the rotary drum 21, and the guide groove 63c is formed to move away from the rotary drum 21. At this time, the protrusion 6 formed on the lower surface of the loading base 61
1a and 61b are fitted in the guide groove 63.

The loading base 61 is the first and the first.
It is connected to the second arms 64 and 65, that is, one end of the first arm 64 is rotatably connected to the loading base 61 via the pin 66, and the other end of the first arm 64 connects the pin 67. It is rotatably connected to one end of the second arm 65 via the other end, and the other end of the second arm 65 is rotatably supported by a shaft 68 fixed to a chassis base (not shown). In addition, the pole 68 which is rotated by means not shown.
Is provided.

Among the above-mentioned constituent members, the first and second arms 6 connected to the loading base 61 and the guide grooves 63b and 63c which are bifurcated in the vicinity of the end on the rotary drum 21 side.
Reference numerals 4 and 65 serve as a loading base material rotating means for rotating the loading base 61, and by the rotation of the loading base 61, the upper flange flange portion 62a and the lower flange of the tape guide member 62 are formed. The structure is such that the direction of the collar portion 62c can be changed.

Next, the operation of the magnetic tape guiding device 60 of the third embodiment having the above structure will be described with reference to FIGS.

First, as shown in FIG. 8A, in the tape unloading state in which the magnetic tape guide device 60 stands by in the opening 1a of the tape cassette 1 (FIG. 1), the loading base 61 is unloaded. The tape guide member 62 is fitted in the single guide groove 63a, and the orientations of the upper flange collar portion 62a and the lower flange collar portion 62c are the same as the loading base 61.
Of the tape guide member 62 so that the magnetic tape T can be attached to the magnetic tape attachment portions 62a ₂ , 62b and 62c ₂ (FIG. 9) of the tape guide member 62. And waiting.

Next, as shown in FIGS. 8 (B) and 9, the magnetic tape guide device 60 pulls out the magnetic tape T from the tape cassette 1 and moves it in the direction of the rotating drum. Thus, the pole 68 leads the magnetic tape T while rotating forward, and the loading base 61 moves in a single guide groove 63a with a little delay, and the tip enters the guide groove 63a on the rotary drum 21 side. . Here, since the orientations of the upper flange collar portion 62a and the lower flange collar portion 62c of the tape guide member 62 are maintained as they are in the state of FIG. 8 (A), the magnetic tape T is not formed into a collar shape. It becomes possible to attach to the tape attachment portions 62a ₂ and 62c ₂ , so that the magnetic tape T can be attached to the magnetic tape attachment portions 62a ₂ and 62b or the magnetic tape attachment portions 62b and 62c depending on its width.
_Since it is attached to No. ₂ , the end of the magnetic tape T is not regulated in the height direction.

After that, when the tape guide member 60 approaches the rotating drum 21 and reaches the position immediately before the completion of tape loading, as shown in FIGS. 8C and 10, the tip of the loading base 61 is next. Is fitted in the guide groove 63b on the rotary drum 21 side, and the rear end of the loading base 61 is interlocked with the rotation of the first and second arms 64, 65.
Since it fits in the guide groove 63c that is distant from the first side, the loading base 61 gradually rotates clockwise. The rotation of the loading base 61 causes the tape guide member 62 to have an upper flange flange portion 62a and a lower flange flange portion 62c.
The direction of changes with the loading base 61. Therefore, the upper and lower end portions of the magnetic tape T that are abutted on the magnetic tape abutting portion 62b are restricted in the height direction by the upper flange collar portion 62a and the lower flange collar portion 62c, that is, the upper and lower end portions of the magnetic tape T. Is regulated to a regular height with respect to the rotating drum 21. As a result, the magnetic tape T can be wound around the rotary drum 21 at a predetermined height position as in the conventional case.

The magnetic tape guide device 60 of the third embodiment.
However, the magnetic tape guide device 40 (40A, 4) of the first embodiment
It is obvious that the same effect as in 0B) can be obtained, and the structure of the tape guide member 62 of the third embodiment becomes simple.

[0053]

According to the magnetic tape guiding apparatus of the present invention, which has been described in detail above, according to the first and second aspects of the present invention, the tape guiding member is in the tape unloading state and during the tape loading toward the rotary drum.
Even if the magnetic tape T abutting on the tape guide member is displaced from the height of the theoretical tape path, the end of the magnetic tape T is not restricted by the flange of the flange formed on the tape guide member. There is no tape damage due to the buckling phenomenon of the flange portion of the magnetic tape and the phenomenon of the flange portion of the magnetic tape climbing up. This allows magnetic recording and /
Alternatively, recording and / or reproduction on the magnetic tape is favorably performed in the reproducing device, and the durability of the magnetic tape is improved. Further, due to high density recording on the magnetic tape, even if the thickness of the magnetic tape becomes thin, no trouble occurs during the tape loading. Further, when designing the magnetic recording and / or reproducing apparatus, it is not necessary to strictly follow the height of the magnetic tape during tape loading, so that the degree of freedom in designing the magnetic recording and / or reproducing apparatus increases. Further, since the magnetic tape guiding device having the above-described structure has a simple structure, there is an advantage that the tape loading can be performed with high reliability. Of course, when the tape guide member reaches the tape loading completion position, the end portion of the magnetic tape is regulated by the flange of the flange formed on the tape guide member, so that the magnetic tape is fixed to the rotary drum in the same manner as in the conventional case. Can be wrapped around the height position.

Further, in the third aspect, there is an advantage that the height of the magnetic tape can be adjusted without being influenced by the turning direction of the flange of the flange portion formed on the tape guide member.

Further, in claim 4, claim 1
The same effect as the second aspect can be obtained, and the structure of the tape guide member can be simplified.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a magnetic recording and / or reproducing apparatus adopting a magnetic tape guide device of a first embodiment according to the invention, (A) showing a tape unloading state and a tape loading midway state. FIG. 3B is a diagram showing a tape loading completion state.

FIG. 2 is a diagram showing a configuration of a magnetic tape guide device of a first embodiment according to the present invention and an enlarged view of a tape loading state of the magnetic tape guide device.
(A) is a top view and (B) is a side view.

3A and 3B are enlarged views showing a tape loading completion state of the magnetic tape guide device of the first embodiment, FIG. 3A being a top view and FIG. 3B being a side view.

FIG. 4 is an enlarged view showing a state in which a magnetic tape is abutting on a tape guide member during tape loading, (A) is a top view, and (B) is a side view.

5A and 5B are enlarged views showing a state where a magnetic tape is attached to a tape guide member when tape loading is completed, FIG. 5A being a top view and FIG. 5B being a side view.

FIG. 6 is a diagram showing a configuration of a magnetic tape guide device according to a second embodiment of the present invention and an enlarged view of a tape loading state of the magnetic tape guide device.
(A) is a top view and (B) is a side view.

7A and 7B are enlarged views showing a tape loading completed state of the magnetic tape guide device of the second embodiment, FIG. 7A being a top view and FIG. 7B being a side view.

8A and 8B are views for explaining the configuration and operation of the magnetic tape guiding apparatus according to the third embodiment of the present invention, FIG. 8A showing a tape unloading state, and FIG. 8B showing a tape loading in-progress state. 9C is a diagram showing a tape loading completion state.

9A and 9B are enlarged views showing a tape loading state of the magnetic tape guide device of the third embodiment, FIG. 9A being a top view and FIG. 9B being a side view.

FIG. 10 is an enlarged view showing a tape loading completion state of the magnetic tape guide device of the third embodiment, FIG.
Is a top view and (B) is a side view.

FIG. 11 is a configuration diagram showing a conventional magnetic recording and / or reproducing apparatus, (A) showing a tape unloading state, and (B) showing a tape loading completion state.

12 is an enlarged view of a tape guide member supported by the loading base shown in FIG.

13 is a diagram showing a state in which a magnetic tape is abnormally attached to the tape guide member shown in FIG. 12, (A) showing a state in which the magnetic tape buckles at a flange portion, and (B) showing It is the figure which showed the state which the magnetic tape mounted on the flange part.

[Explanation of symbols]

11 ... Chassis base, 21 ... Rotating drum, 22 (22
A, 22B) ... Guide groove, 30 ... Magnetic recording and / or reproducing device, 40 (40A, 40B) ... Magnetic tape guide device of the first embodiment, 41 (41A, 41B) ... Loading base, 42 (42A) , 42B) ... Tape guide member, 42
a ... upper flange portion (upper flange collar portion), 42b ... magnetic tape splicing portion, 42c ... lower flange portion (lower flange collar portion), 42d ... first support portion, 42d ... second support portion, 43
(43A, 43B) ... Rotating member (first gear), 44 (4
4A, 44B) ... Engaging members (rack), 43, 44 ... Tape guide member rotating means of the first embodiment, 50 (50A, 5)
0B) ... Magnetic tape guide device of the second embodiment, 51 (51
A, 51B) ... Rotating member (pin), 52 (52A, 52)
B) ... Engaging members, 51, 52 ... Tape guide member rotating means of the second embodiment, 60 ... Magnetic tape guide device of the third embodiment, 61 ... Loading base, 62 ... Tape guide member, 62a ... Upper flange part (upper flange collar part), 62b
... magnetic tape attachment part, 62c ... lower flange part (lower flange collar part), 63 (63a to 63c) ... guide groove, 64 ... first arm, 65 ... second arm, 63b, 63c, 64,
65 ... Loading base rotating means of the third embodiment, T ...
Magnetic tape.

Claims (4)

[Claims] 1. A tape guide member is erected on a loading base which moves along a guide groove provided on a shear base of a magnetic recording and / or reproducing apparatus, and a magnetic tape is attached to the tape guide member. A magnetic tape guiding device for spirally winding the magnetic tape around a predetermined angle on a rotary drum by moving the tape guide member from the tape unloading position toward the rotary drum while contacting the magnetic tape. A tape guide member having a portion, a flange portion partially protruding in a flange shape at the end of the magnetic tape splicing portion, and rotatably supported by the loading base through a supporting portion; When the guide member reaches the position immediately before the completion of tape loading, the flange of the flange portion formed on the tape guide member is rotated with respect to the loading base. And a tape guide member rotating means for allowing the tape guide member to avoid the flange of the flange from the end of the magnetic tape during tape loading while the tape guide member moves in the tape unloading position and the rotating drum direction. When the tape guide member reaches the position immediately before the completion of tape loading, the flange portion is rotated by the tape guide member rotating means, and the flange of the flange portion regulates the end portion of the magnetic tape. A magnetic tape guide device characterized by being configured. 2. The tape guide member rotating means according to claim 1, wherein the tape guide member rotating means is engaged with a rotating member fixed to a support portion of the tape guide member and provided near a terminal end of the guide groove immediately before completion of tape loading. A magnetic tape guide device, characterized in that it is configured to engage with and separate from a member. 3. The first upper part to which the supporting part of the tape guide member is divided into upper and lower parts into first and second supporting parts and the rotating member is fixed. The supporting portion is rotatably supported by the lower second supporting portion, and the second supporting portion is screwed into the loading base,
A magnetic tape guide device, wherein the height of the tape guide member can be adjusted by rotating a gear fixed to the second support portion. 4. A tape guide member is erected on a loading base which moves along a guide groove provided on a shear base of a magnetic recording and / or reproducing apparatus, and a magnetic tape is attached to the tape guide member. A magnetic tape guiding device for spirally winding the magnetic tape around a predetermined angle on a rotary drum by moving the tape guide member from the tape unloading position toward the rotary drum while contacting the magnetic tape. And a flange portion is partially formed in a flange shape at the end of the magnetic tape splicing portion, and
A tape guide member supporting the loading base with the flange of the flange positioned in a predetermined direction, and rotating the loading base when the tape guide member reaches a position immediately before completion of tape loading. And a loading base rotating means for moving the flange of the flange formed on the tape guide member to move the tape guide member toward the tape unloading position and the rotating drum. During the tape loading, the flange of the flange is avoided from the end of the magnetic tape, and when the tape guide member reaches the position just before the completion of the tape loading, the loading base is rotated by the loading base. The end of the magnetic tape is regulated by the flange of the flange. Magnetic tape guide device that.