JPH0729266A - Tape guide device - Google Patents

Abstract

PURPOSE:To facilitate the assembly and production of a rotary head device and to position the guide for a magnetic tape and the rotary head device with high accuracy. CONSTITUTION:This tape guide device is mounted at a fixing part of a rotary head 24 and is constituted to position the rotary head device 25 with respect to positioning parts 122, 123 disposed in a tape cassette and to guide traveling of the magnetic tape 108. From a supported part 30a mounted at the fixing part 65 of the rotary head device 25 to a part 30e for sliding contact with the tape are integrally molded of synthetic resin materials.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape guide device for positioning a rotary head device and guiding a recording tape running path in a recording and / or reproducing device having a rotary head device.

[0002]

2. Description of the Related Art Conventionally, a tape recorder device having a rotary head device and configured to record and / or reproduce an information signal on a magnetic tape, which is a recording tape, by a magnetic head of the rotary head device. Is proposed.

The applicant of the present application previously used a magnetic tape, which is wound around a pair of tape reels housed in a cassette to form a tape cassette, and uses a part of the rotary head device. A tape recorder device is proposed in which the magnetic head of the rotary head device is slidably contacted with the magnetic tape by entering the cassette.

In this tape recorder device, the tape cassette is mounted at a predetermined mounting position. In the tape cassette mounted in the mounting position, a pair of reel shafts are correspondingly inserted and engaged with the respective tape reels. By rotating these reel shafts, the magnetic tape is unwound from one tape reel (supply reel) and wound on the other tape reel (take-up reel) in the cassette to run. Operated.

The front side of the cassette is open, and the portion of the magnetic tape extending between the tape reels is exposed to the outside. A part of the rotary head device can enter the cassette from the opened front side. This tape cassette has a pinch roller at a position near the front side of the cassette and behind the magnetic tape. The pinch roller is formed in a cylindrical shape from a material having a high friction coefficient such as butyl rubber, and is rotatably supported with its outer peripheral surface portion substantially abutting on the back surface portion of the magnetic tape.

The rotary head device comprises a fixed drum formed in a substantially cylindrical shape, and a rotary drum coaxial with the fixed drum and rotatably supported by the fixed drum and to which the magnetic head is attached. It is configured to have. The rotary head device is movably supported, and is moved to enter the cassette. In this rotary head device, the running magnetic tape is brought into slidable contact with the outer peripheral surface portions of the fixed drum and the rotary drum, and the rotary drum is rotated, whereby the magnetic head is moved to the magnetic tape at high speed. The magnetic tape is brought into sliding contact with the magnetic tape to write and / or read information signals by a so-called helical scan method.

The rotary head device is supported and positioned by the tape cassette when a part thereof is inserted into the tape cassette. That is, this rotary head device is positioned with the cassette as a position reference.

A pair of tape guide devices, so-called wing guides, are attached to the rotary head device. The tape guide device is attached to both sides of the fixed portion of the rotary head device, and protrudes toward the tape cassette. The tape guide device contacts the positioning member provided on the tape cassette to position the rotary head device.

The tape guide device includes a supported portion supported by the rotary head device, and a guide pin portion attached to an arm portion projecting from a front end of the supported portion.
It is composed of flange portions attached to both ends of the guide pin portion.

The supported portion is fixed and supported by a set screw or the like to a fixed portion of the rotary head device or a drum support member attached to the fixed portion. The supported portion is made of a metal material such as aluminum. The guide pin portion is formed of a metal material such as stainless steel in a cylindrical shape, and its axis is substantially parallel to the rotation axis of the rotary drum so that the peripheral surface portion can be along the surface portion of the magnetic tape. It is supported.
The flange portion is attached to both end sides of the guide pin portion so as to project toward the front side of the rotary head device with respect to the peripheral surface portion of the guide pin portion.

In this tape guide device, the flange portions are brought into contact with the positioning member of the cassette to position the rotary head device, and between the flange portions, that is, the peripheral surface portion of the guide pin portion. The magnetic tape is passed between the positioning member of the cassette and the traveling path of the magnetic tape.

[0012]

By the way, the above-described tape guide device has a large number of parts and a complicated structure, so that it is complicated to assemble. That is, it is difficult to assemble the components that compose the tape guide device accurately because the components are minute in size and high dimensional accuracy is required. Therefore, this tape guide device complicates the assembly and manufacturing of the tape recorder device.

Therefore, the present invention has been proposed in view of the above situation, and is a tape guide device for positioning a movable head device movably arranged with respect to a tape cassette. Manufacturing is facilitated, assembly of the tape recorder device using this tape guide device,
An object of the present invention is to provide a tape guide device capable of facilitating manufacturing.

[0014]

In order to solve the above problems and achieve the above object, a tape guide device according to the present invention has a distal end supported by a rotary head device movably arranged at the base end side. A tape guide device for positioning the rotary head device by bringing its side into contact with a positioning member of the tape cassette and for guiding the running path of the recording tape of the tape cassette by the tip side part, It is formed by.

Further, the tape guide device according to the present invention is
A drum supporting portion attached to a fixed portion of the rotary head device, and the rotary head device is positioned by abutting a tip end side protruding from the drum supporting portion against a positioning member of the tape cassette, and the tape cassette by the tip end side portion. And a pair of guide portions for guiding the recording tape traveling path, and the drum support portion and each of the guide portions are integrally formed of a synthetic resin material.

[0016]

Since the tape guide device according to the present invention is integrally formed of a synthetic resin material, it can be easily formed by, for example, injection molding means, and the rotary head is movably arranged. The rotary head device can be positioned by supporting the base end side of the device and contacting the tip end side of the tape cassette with the positioning member of the tape cassette, and the tip end side portion can guide the running path of the recording tape of the tape cassette.

Further, in the tape guide device according to the present invention, the drum support portion attached to the fixed portion of the rotary head device and the tip end side protruding from the drum support portion are brought into contact with the positioning member of the tape cassette, and Since the pair of guide portions for positioning the rotary head device and for guiding the running path of the recording tape of the tape cassette by the tip end side portion are integrally formed of synthetic resin material, for example, by injection molding means. , Can be easily formed.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below with reference to the drawings. In this example, the tape guide device according to the present invention is applied to a tape recorder device as shown in FIG. 1 in which an information signal is written and / or read by a rotary head device 25 on a magnetic tape 108 serving as a recording tape. Here is an example.

In the tape recorder device, as the magnetic tape 108, a tape cassette is constructed by being wound around a pair of tape reels 106 and 107 housed in a cassette 102 as shown in FIG. To use. This tape guide device has an arrow U in FIG.
, A part of the rotary head device 25 is inserted into the cassette 102, and the magnetic head of the rotary head device 25 is slidably contacted with the magnetic tape 108 to write an information signal on the magnetic tape. And / or read.

The above-mentioned tape cassette has a cassette 102 constituted by upper and lower halves butted and joined together. The cassette 102 has a thin housing shape with the front side opened. In this cassette 102, a pair of tape reels 106 and 107 are rotatably housed in parallel. The magnetic tape 108 is wound around one of the tape reels 106 and 107, that is, the supply reel 107. This magnetic tape 108
The starting end of is attached to the other tape reel, that is, the take-up reel 106. The portion of the magnetic tape 108 extending from the supply reel 107 to the take-up reel 106 faces outward from the opened front side of the cassette 102.

The open front side of the cassette 102 can be opened and closed by a lid (not shown). The lid is formed in a substantially flat plate shape so that the front side of the cassette 102 can be closed, and a pair of support holes formed at both end portions project from both sides of the front portion of the upper half. The pair of supporting shafts are fitted into the cassette 102 in a corresponding manner, and are attached to the front side portion of the cassette 102. The lid is rotatable in the up-down direction around each of the support shafts, and when it is rotated, the front side portion of the cassette 102 is opened and closed.

Reel hubs 109 and 110 are fitted in the central portions of the tape reels 106 and 107, respectively. These reel hubs 109 and 110 are formed in a cylindrical shape, and the inner hole portions are reel shaft engaging holes 121 and 12.
It is said to be 1. A reel shaft insertion hole is formed in each half of the cassette 102.
These reel shaft insertion holes are through holes that communicate the inside and the outside of the cassette 102, and are opened at positions corresponding to the reel shaft engagement holes 121, 121, respectively. 121, 121 are exposed to the outside on the upper side and the lower side.

The cassette 102 is configured such that a part of the rotary head device 25 can enter from the opened front side. Inside the cassette 102, a pair of rotary head receiving members 116 and 117 are arranged in the vicinity of the central portion of the open front side portion. The rotary head receiving members 116 and 117 cooperate with each other to form a part of a cylindrical surface corresponding to the outer peripheral surface of the rotary head device 25 and are retracted from the front portion of the cassette 102 toward the rear side. Forming the wall surface of the. Also,
The rotary head receiving members 116 and 117 have wing guide receiving portions 122 and 123, respectively, at the side portions of the cassette 102. These wing guide receiving portions 122 and 123 are for abutting correspondingly a pair of tape guide devices according to the present invention, which are attached to the rotary head device 25 as described later, to position the rotary head device 25. is there. The wing guide receiving portions 122 and 123 are formed in a cylindrical concave surface shape (concave cylindrical surface shape), and the axial center (bus line) direction is perpendicular to the running direction of the magnetic tape 108, that is,
The reel shafts 106 and 107 are parallel to the axis.

Further, in this cassette 102, at a position behind the magnetic tape 108 near the front side and on both sides of the rotary head receivers 116 and 117, for F (forward). A pair of pinch rollers 104 and 105 for R (reverse) are arranged so as to be laterally distributed. The F and R pinch rollers 104 and 105 are formed of a material having a high friction coefficient such as butyl rubber into a cylindrical shape, and the outer peripheral surface portion thereof has the magnetic tape 108.
Is rotatably supported by being brought into close contact with the back surface of the.

The tape recorder device shown in FIG.
As shown in (1), it has a pair of reel shafts 19 and 23 on the T (take-up) side and the S (supply) side. The reel shafts 19 and 23 are rotatably supported and arranged on a chassis (not shown) that constitutes the tape recorder device. When the tape cassette is mounted at the mounting position on the chassis, the reel shafts 19 and 23 enter the cassette 102 through the reel insertion holes, and the reel hub 109 of the tape reels 106 and 107. , 110 are inserted and engaged. In this way, the reel shaft 1 inserted and engaged with each of the reel hubs 109 and 110 described above.
When the tapes 9 and 23 are rotated, the respective tape reels 1
Rotate 06, 107. At the base end side portion of the T-side reel shaft 19, first and second reel shaft gears 18, 3 are provided.
3 is coaxially attached to the T-side reel shaft 19. A third reel shaft gear 22 is coaxially attached to the supply-side reel shaft 23 at the base end side portion of the S-side reel shaft 23.

A gear support arm is rotatably attached to the base end side of the T-side reel shaft 19. The second reel shaft gear 18 is provided on the tip side of the gear support arm.
A fourth reel shaft gear 32 meshing with is rotatably attached. In the fourth reel shaft gear 32, since the rotation shaft of the gear support arm is on the central axis of the T-side reel shaft 19, even if the gear support arm rotates,
It meshes with the second reel shaft gear 18. A gear support arm is also rotatably attached to the base end side of the S-side reel shaft 23. A fifth end meshed with the third reel shaft gear 22 is attached to the tip end side of the gear support arm.
The reel shaft gear 21 is rotatably attached.
In the fifth reel shaft gear 21, since the rotation shaft of the gear support arm is on the central axis of the S-side reel shaft 23,
Even if the gear support arm rotates, it always meshes with the third reel shaft gear 22.

A cassette holder (not shown) is arranged above the reel shafts 19 and 23. The cassette holder is formed in a substantially housing shape so that the tape cassette can be inserted into the cassette holder in a predetermined approach direction with the lid on the front side and hold the tape cassette. Then, the cassette holder mounts the held tape cassette at a mounting position where the reel shafts 19 and 23 are inserted and engaged in correspondence with the reel shaft engaging holes 121 and 121. Also, the cassette holder is configured to open the lid when the tape cassette is inserted.

The tape cassette held in the cassette holder and mounted in the mounting position is inserted into and engaged with the reel shafts 19 and 23 in the reel shaft engagement holes 121 and 121, respectively. When the lid is opened, each tape reel 10 of the magnetic tape 108 is opened.
The part extending over between 6 and 107 faces the front side.

The tape recorder device has a slide base 1 for supporting the rotary head 25. The slide base 1 is formed in a flat plate shape and is arranged on the chassis at a position on the front side of the cassette holder. The slide base 1 is slidable in the front-rear direction in which it comes in contact with and separates from the cassette holder.

As shown in FIGS. 2 and 3, the rotary head device 25 provided on the slide base 1 has a lower fixed drum 63 fixedly provided on the slide base 1. ing. The lower fixed drum 63 is shown in FIG.
And as shown in FIG. 6, via the drum support member 65,
The upper fixed drum 26 is attached. The drum support member 65 has a substantially arc shape capable of covering the rear side and both side sides of the rotary head device 25, and is made of a metal material such as aluminum. The fixed drums 26 and 63 are attached to the drum support member 65 so as to be held by the drum support member 65. The fixed drums 26 and 63 are formed in a substantially cylindrical shape and are coaxially supported with each other.

Between the fixed drums 26 and 63, there is disposed a rotary drum 27 that is coaxial with the fixed drums 26 and 63 and is rotatably supported. A magnetic head 64 is attached to the rotating drum 27. The rotary drum 27 is the lower fixed drum 63.
It is adapted to be rotated by a drum motor (not shown) housed inside. This magnetic head 64 is
The magnetic gap portion is exposed on the outer peripheral surface portion of the rotary drum 27. The fixed drums 26 and 63 and the rotary drum 27 are attached to the slide base 1 while being inclined by a predetermined minute angle.

In the rotary head device 25, when the slide base 1 is moved forward to the tape cassette side, as shown by an arrow U in FIG. 1, when the tape cassette is loaded in the loading position. , The cassette 102
Enter from the front side. The rotary head device 25 that has entered the cassette 102 attaches the magnetic tape 108 facing the front side of the cassette 102 to each of the fixed drums 2.
6, 63 and the outer peripheral surface of the rotary drum 27 are brought into sliding contact with each other, and the rotary drum 27 is rotated to bring the magnetic head 64 into sliding contact with the magnetic tape 108 at a high speed. That is, the rotary head device 25 is configured so that the magnetic head 64 writes and / or reads an information signal on the magnetic tape 108 by a so-called helical scan method. The magnetic head 6 of the rotary head device 25
The information signal is transmitted and received to and from the upper fixed drum 26.
Is performed via a flexible substrate 34 connected to the above and a rotary transformer (not shown) disposed between the upper fixed drum 26 and the rotary drum 27.

The rotary head device 25 is provided with a pair of F and R capstan shafts 7 and 14 via a pair of F (forward) and R (reverse) capstan support arms 28 and 29. Is attached. The capstan support arms 28 and 29 have their base ends on the upper fixed drum 26 via the support shafts 61 and 62, respectively.
Is rotatably attached to the upper surface of the. The capstan support arms 28 and 29 are arranged so as to project in both lateral directions of the rotary head device 25. Each of the capstan shafts 7 and 14 is formed in a cylindrical shape, and the upper end side of each of the capstan support arms 28 and 29 is formed.
Correspondingly rotatably supported and suspended. The F capstan gear 6 and the R capstan gear 13 for rotationally operating the capstan shafts 7 and 14 are attached to the lower end sides of the capstan shafts 7 and 14 correspondingly. These capstan shafts 7 and 14 are
With respect to the rotary head device 25, the capstan support arms 28 and 29 are rotatable about the support shafts 61 and 62 on the base end side of the capstan support arms 28 and 29.
It is rotatable with respect to 8, 29. When the tape cassette is mounted at a predetermined position, the capstan shafts 7 and 14 are opposed to the pinch rollers 104 and 105 of the tape cassette.

The rotary head device 25 is provided with a pair of wing guides 30 and 31, each of which is a tape guide device according to the present invention. As shown in FIG. 6, these wing guides 30 and 31 are attached to both end portions of the drum support member 65, are located on both sides of each of the drums 26, 27, 63, and have their tip portions in the mounting position. It is supported so as to project toward the tape cassette attached to the.

These wing guides 30 and 31 are shown in FIG.
As shown in FIG. 5, the supported portion 30a attached to the drum supporting member 65, the arm portion 30e projecting forward from the supported portion 30a, and the arm portion 30 are provided.
It has a tape sliding contact portion 30f formed at the tip of e and is integrally formed of a synthetic resin material. The supported portion 30a is formed in a substantially flat plate shape, and has screw insertion holes 30b, 30c, 30d for fixing the supported portion 30a to the drum supporting portion 65 with a set screw. The supported portion 30a is attached to the drum supporting member 65 with the set screw.

The arm portion 30e has a front end portion facing the tape cassette, the tape sliding contact portion 3 having a substantially columnar shape.
It is set to 0f. The tape sliding contact portion 30f has its axis substantially parallel to the central axis of the rotary drum 27.
The upper and lower end portions of the tape sliding contact portion 30f are protruded forward in a flange shape. This tape sliding contact part 30f
Between the flange-like protrusions, that is, the length of the cylindrical portion indicated by the arrow w in FIG.
It is supposed to correspond to 8.

When the tape cassette is mounted in the mounting position and the slide base 1 is moved forward to the tape cassette side, the wing guides 30 and 31 move up and down the tape sliding contact portions 30f and 30f, respectively. The tip end of the flange-shaped projection is brought into contact with the wing guide receiving portions 122 and 123. These wing guides 3
0 and 31 are obtained by bringing the flange-shaped projections into contact with the wing guide receiving portions 122 and 123, respectively.
The rotary head device 25 is positioned with respect to the cassette 102. Also, these wing guides 30, 31
By contacting the respective flange-shaped projections with the respective wing guide receiving portions 122, 123, as shown in FIG. 6, the columnar portion of the tape sliding contact portion 30f and the respective wing guide receiving portions 122, 123 are A slight gap is formed between the magnetic tape 108 and the magnetic tape 108, and the magnetic tape 108 is passed through the gap to guide the traveling path of the magnetic tape 108. That is, the magnetic tape 108 is regulated in the width direction by running while the both side edges are slidably contacting the flange-shaped projections.

The wing guides 30 and 31 can be formed by injection molding means. As materials for forming the wing guides 30 and 31, synthetic resin materials such as polycarbonate (PC), polyamide (PA), or polyetherimide (PEI) are used, and additives for improving strength such as carbon filler and so-called silicon. Can be used.

Then, on the slide base 1, the rotation of the drum motor is controlled by the respective capstan shafts 7, 1.
4 and a plurality of gears for transmitting to the pair of reel shafts 19 and 23 are rotatably arranged. That is,
The drum motor rotates the drive gear 2 attached to the drive shaft, as indicated by arrow A in FIG. The drive gear 2 meshes with a first transmission gear 3 rotatably arranged on the slide base 1. The first and second transmission gears 3 are integrally formed with second and third transmission gears 4 and 5 coaxially with each other. The second transmission gear 4 meshes with the F capstan gear 6.
The second transmission gear 4 is coaxial with the support shaft 61 of the F capstan support arm 28. Even if the F capstan support arm 28 is rotated, the F transmission cap 4 is always provided. It meshes with the stun gear 6. The third transmission gear 5 meshes with a fourth transmission gear 8 rotatably arranged on the slide base 1. The fourth transmission gear 8 meshes with a fifth transmission gear 9 rotatably arranged on the slide base 1. The fifth transmission gear 9 is a gear in which a large-diameter gear portion and a small-diameter gear portion are coaxially and integrally formed.
Is meshed with the transmission gear 8. This fifth transmission gear 9
The large-diameter gear portion is engaged with the sixth transmission gear 12 rotatably arranged on the slide base 1. The sixth transmission gear 12 is a gear in which a large-diameter gear portion and a small-diameter gear portion are integrally formed coaxially, and the large-diameter gear portion is meshed with the fifth transmission gear 9 described above. There is. The small-diameter gear portion of the sixth transmission gear 12 meshes with the R capstan gear 13. The sixth transmission gear 12 is coaxial with the support shaft 62 of the R capstan support arm 29. Even if the R capstan support arm 29 rotates, the sixth transmission gear 12 is always provided with the R capstan support arm 29. It meshes with the stun gear 13.

The fourth transmission gear 8 is meshed with a seventh transmission gear 15 rotatably arranged at a front end side portion of the slide base 1 on the cassette holder side. The seventh transmission gear 15 meshes with an eighth transmission gear 20 which is rotatably arranged alongside the seventh transmission gear 15 in the front end side portion of the slide base 1.

That is, when the drum motor is driven, the F capstan shaft 7 rotates in the direction for feeding the magnetic tape 108 in the forward direction as shown by the arrow F in FIG. It is being operated. Also,
When the drum motor is driven, the R capstan shaft 14 is rotationally operated in a direction to feed the magnetic tape 108 in the reverse direction (reverse direction) as indicated by an arrow J in FIG. Further, when the drum motor is driven, the seventh and eighth transmission gears 1 are
5, 20 are rotated.

A pair of linkage arms on the F (forward) side and the R (reverse) side are rotatably attached to the slide base 1. These linking arms are engaged with the capstan support arms 28 and 29, respectively. Further, on the chassis, an FR slider, an FR gear arm that rotatably supports an FR gear and is rotatable, and FF-Rew (fast forward rewind).
A slider, a head moving arm, and a cam gear for moving and operating these sliders and arms according to a selected mode are provided.

The cam gear is rotatably arranged on the chassis and is rotated by a motor. This cam gear has a cam groove on the main surface portion, and the head moving arm, the FR slider and the FF-Rew slider are moved by the cam groove to stop (Sto).
p) mode, fast forward (FF) mode, rewind (Rew)
A mode, a pause mode, a forward feed recording (playback) mode, and a reverse feed recording (playback) (Reverse) mode are executed.

In the recording mode and the reproducing mode, the FR slider is moved in one direction or the other direction by the cam gear according to the traveling direction of the magnetic tape 108. The FR slider is engaged with each of the linkage arms. In addition, this FR slider has the above F
The R gear arm is engaged. The FR gear arm is rotated in conjunction with the sliding of the FR slider.

The FF-Rew slider is operated to move in one direction or the other direction by the cam gear in the fast-forward mode and the rewind mode. This FF-Rew
The slider is engaged with each gear support arm arranged corresponding to each reel shaft 19 and 23. This FF-R
The ew slider selectively rotates each of the gear support arms by being slid in one direction or the other direction.

The head moving arm is engaged with the cam gear and the slide base. The head moving arm is moved by the cam gear to move the slide base 1 into the rotary head device 2.
The moving operation is performed between a retracted position where 5 is separated from the mounted tape cassette and an advanced position where the rotary head device 25 is advanced into the cassette 102 of the tape cassette.

In the tape recorder device having the tape guide device according to the present invention as described above,
In the stop mode, the slide base 1
The FR slider and the F slider are set to the retracted position.
The F-Rew slider is at the center position. That is, at this time, the FR gear arm is set to the neutral position where the FR gear is located at the center position of the reel shafts 19 and 23, and the gear support arms are supporting the fourth and fifth reel gears 32. , 21 are separated from the seventh and eighth transmission gears 15, 20.

When the tape cassette is mounted in the mounting position and the fast-forward mode is selected, the slide base 1 remains in the retracted position and the FR
The slider remains in the center position. And
In this fast-forward mode, the FF-Rew slider is slid in one direction. Further, in this fast-forward mode, the drum motor is rotationally driven. The gear support arm is rotated by sliding the FF-Rew slider in one direction, and the fourth reel gear 32 supported by the gear support arm is meshed with the seventh transmission gear 15. Therefore, at this time, the driving force of the drum motor is the T-side reel shaft 1
9, the T-side reel shaft 19 rotates the T-side tape reel 106 engaged with the T-side reel shaft 19 to wind the magnetic tape 108 at high speed.

In the rewinding mode, the slide base 1 remains in the retracted position, and the F
The R slider remains in the center position. Then, in this rewind mode, the FF-Rew slider is slid in the other direction. Further, in this rewinding mode, the drum motor is rotationally driven. The gear support arm is rotated by sliding the FF-Rew slider in the other direction, and the fifth reel gear 32 supported by the gear support arm is meshed with the eighth transmission gear 20. Therefore, at this time, the driving force of the drum motor is transmitted to the S-side reel shaft 23, and the S-side reel shaft 23 rotationally operates the S-side tape reel 107 engaged with the S-side reel shaft 23. Then, the magnetic tape 108 is wound at high speed.

In the temporary stop mode, the slide base 1 is moved to the forward position and operated.
The FR slider and the FF-Rew slider are at the center position. That is, at this time, the FR
The gear arm uses the FR gears as the reel shafts 19 and 2
The gear support arm is in a neutral position with respect to the center position of the third gear, and the gear support arm supports the fourth and fifth reel gears 32 and 21 supporting the seventh and eighth transmission gears 15 and 20.
More separated.

In the forward feed recording (reproducing) mode, the slide base 1 is moved to the forward position, and the FF-Rew slider remains at the center position. Then, in this progressive recording (reproducing) mode, the FR slider is slid in the other direction. Further, in this progressive feed recording (reproducing) mode, the drum motor is rotationally driven. When the FR slider is slid in the other direction, the FR gear arm is rotated, and the FR gear arm is rotated.
The FR gear supported by the R gear arm is meshed with the seventh transmission gear 15 and the first reel gear 18.
Therefore, at this time, the driving force of the drum motor is transmitted to the T-side reel shaft 19 and the T-side reel shaft 19
Rotates the T-side tape reel 106 engaged with the T-side reel shaft 19 to wind the magnetic tape 108. Further, at this time, each of the linkage arms is rotated. By the rotation of the linking arms, the F capstan support arm 28 is rotated toward the tape cassette side, and the F capstan shaft 7 cooperates with the F pinch roller 104 to move the magnetic tape. Hold 108. The magnetic tape 108 is operated to run in the forward direction at a constant speed.

The rotary head device 25 is positioned by the cassette 102, and is run by the magnetic head 64.
The information signal is written to or read from the.

In the reverse feed recording (reproducing) mode, the slide base 1 is moved to the forward position, and the FF-Rew slider remains at the center position. And this reverse feed recording (playback)
In the mode, the FR slider is slid in one direction. Further, in the reverse feed recording (reproducing) mode, the drum motor is rotationally driven. By sliding the FR slider in one direction, the FR gear arm is rotated, and the FR gear supported by the FR gear arm 49 is moved to the eighth transmission gear 2
0 and the third reel gear 22 are meshed. Therefore, at this time, the driving force of the drum motor is transmitted to the S-side reel shaft 23, and the S-side reel shaft 23 is engaged with the S-side reel shaft 23.
The magnetic tape 108 is wound up by rotating 07. Further, at this time, each of the linkage arms is rotated. By the rotation of these linking arms, the R capstan support arm 29 is rotated toward the tape cassette side, and the R capstan shaft 14 cooperates with the R pinch roller 105 to move the magnetic tape. Hold 108. The magnetic tape 108 is operated to run in the reverse direction at a constant speed.

The rotary head device 25 is positioned by the cassette 102, and is run by the magnetic head 64.
The information signal is written to or read from the.

In the forward recording mode of this tape guide device, the magnetic tape 108 is written with an information signal on the magnetic tape 108 by the rotary head device 25 in a substantially half width portion. In the remaining portion where the information signal has not been written, the information signal is written by the rotary head device 25 in the reverse recording mode. The tape guide device is a so-called non-tracking type digital signal recording and reproducing device, and the information signal written on the magnetic tape 108 is a digital signal. In this tape guide device, when the information signal is read from the magnetic tape 108, the tracking control for the magnetic head 64 is not performed, and the read information signal is rearranged based on the address signal, and then the analog signal is analogized. Demodulate to a signal.

The tape guide device according to the present invention has the drum support member 65 as described in the above embodiment.
Is not limited to those configured to be attached to
As shown in FIG. 5, a drum support portion 65 formed in the same shape as the drum support member 65, and a pair of arm portions 30e integrally formed on the drum support portion 65 so as to project.
30e may be included. That is, the tape guide device is integrally attached to the lower fixed drum 63 and the drum supporting portion 65 that supports the upper fixed drum 26, and the both ends of the drum supporting portion 65 toward the front side. Pair of arm portions 30 projecting from the
e, 30e. These arm portions 30e, 3
On the tip side of 0e, like the tape guide device described above,
The tape sliding contact portion 30f and the flange-shaped projection are formed. In this case, the drum supporting portion 65 is integrally formed with the respective arm portions 30e, 30e by the same material as that of the tape guide device having the supported portion 30a described above. This tape guide device can be formed by injection molding means.

[0057]

As described above, since the tape guide device according to the present invention is integrally formed of the synthetic resin material, it can be easily formed by injection molding means, for example. The tape guide device has a base end side supported by a rotary head device movably arranged, and the tip end side is brought into contact with a positioning member of the tape cassette to position the rotary head device. The tip side portion can guide the running path of the recording tape of the tape cassette.

Further, in the tape guide device according to the present invention, the drum support portion attached to the fixed portion of the rotary head device and the tip end side protruding from the drum support portion are brought into contact with the positioning member of the tape cassette, and A pair of guide portions that position the rotary head device and guide the traveling path of the recording tape of the tape cassette by the tip end side portion are integrally formed of a synthetic resin material. Therefore, this tape guide device can be easily formed by injection molding means, for example.

That is, the present invention is a tape guide device for positioning a rotatably arranged rotary head device with respect to a tape cassette, which is easy to manufacture, and a tape recorder using this tape guide device. It is possible to provide a tape guide device capable of facilitating assembly and manufacturing of the device.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a configuration of a main part of a tape recorder device to which a tape guide device according to the present invention is applied and a main part of a tape cassette mounted in the tape guide device.

FIG. 2 is an enlarged plan view showing a configuration of a rotary head device to which the tape guide device is attached.

FIG. 3 is an enlarged front view showing the configuration of the rotary head device.

FIG. 4 is a perspective view showing a configuration of a tape guide device according to the present invention.

FIG. 5 is a perspective view showing another example of the configuration of the tape guide device according to the present invention.

FIG. 6 is a plan view of relevant parts showing a usage state of the tape guide device shown in FIG. 4 in the tape recorder device.

[Explanation of symbols]

 25 ..... Rotary head device 30, 31 ..... Tape guide device 30a ..... Supported part 30e ..・ ・ ・ Arm part 30f ・ ・ ・ ・ ・ ・ Tape sliding part 65 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Drum support part 103 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Cassette 108 ... Magnetic tape 122, 123 ... Wing guide receiving part

Claims (2)

[Claims] 1. A rotary head device, which is movably arranged, has a base end side supported, and a front end side is brought into contact with a positioning member of a tape cassette to position the rotary head device and the front end side. A tape guide device for guiding a recording tape running path of the tape cassette by a part, the tape guide device being integrally formed of a synthetic resin material. 2. A drum support portion attached to a fixed portion of the rotary head device; and a rotary head device which is projected from the drum support portion and whose tip end is brought into contact with a positioning member of the tape cassette to position the rotary head device; A tape guide having a pair of guide parts for guiding the running path of the recording tape of the tape cassette by the tip end side part, wherein the drum support part and each guide part are integrally formed of a synthetic resin material. apparatus.