JPH05258418A - Magnetic recording and/or reproducing device - Google Patents

Abstract

PURPOSE:To brake a supply reel turn table by interlocking a brake lever turned and supported to the supply reel turn table of a slide deck assembly to the movement of the slide deck assembly. CONSTITUTION:The slide deck assembly 15 which is freely slidable in a rotary drum 12 direction is provided on a chassis base 11 integrally with a tape cassette 1 mounted thereon. The brake lever 30 for braking the supply reel turn table 28 is provided on the slide deck assembly 15. The brake lever 30 is actuated to be attached and detached to and from the supply reel turn table 28 by the attachment and detachment of the contact part 30b of the brake lever 30 to and from a stud 57 fixed to the chassis base 11 cooperatively with the movement of the slide deck assembly 15. The attaching and detaching operations of the brake lever 30 are executed even by the attachment and detachment of the contact part 33a of a sliding lever 33 for moving the slide deck assembly 15 to and from a bent part 30c formed at the other end of the brake lever 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording system in which a tape cassette containing a magnetic tape is placed on a slide deck assembly, and the tape cassette is moved integrally with the slide deck assembly toward a rotary drum. In the reproducing apparatus, in particular, a magnetic recording and / or recording device configured to brake the supply reel base by cooperating with a movement of the slide deck assembly by a brake lever that is rotatably supported on the supply reel base side of the slide deck assembly. The present invention relates to a reproducing device.

[0002]

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

Generally, in the above-mentioned 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 attached to 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. By the way, in the above magnetic recording and / or reproducing apparatus, a tape cassette is mounted on a movable chassis, the tape cassette is moved integrally with the movable chassis in the direction of the rotary drum, and the rotary drum on the apparatus side is placed inside the tape cassette. Japanese Patent Laid-Open No. 165459/1990 discloses a device for making the device smaller by biting in a part of it, but although not shown here, a movable chassis for mounting a tape cassette is used. It is equipped with a supply-side reel base unit and a winding-side reel base unit, and moves the movable chassis in the direction of the rotating drum by the drive pin on the drive gear that meshes with the outer peripheral gear of the cam disk connected to the drive source via the reduction gear. ing. Further, the supply-side reel base unit and the take-up reel base unit supported by the movable chassis are provided with respective reel base braking components, and the supply-side reel base unit and the take-up reel base unit are provided at a predetermined timing. Is braking.

[0004]

By the way, JP-A-2-
In the magnetic recording and / or reproducing apparatus disclosed in Japanese Patent No. 165459, a part of the rotating drum is inserted into the tape cassette to reduce the size of the apparatus, and the tape cassette is integrated with the movable chassis in the rotating drum direction. Although the cassette loading that moves to the tape cassette and the tape loading that pulls out the magnetic tape from the tape cassette are performed at the same time, the reel stand braking configuration that brakes the supply side reel stand unit and the take up side reel stand unit supported by the movable chassis The structure of the member is complicated and is a problem.

That is, for example, a reel base braking component for braking the supply side reel base unit is a rack plate having a gear fixed to the main chassis and engaging with a brake lever rotatably supported on the supply side of the movable chassis. The brake lever is operated via the gear that meshes with the rack plate by the operation of meshing and moving the movable chassis in the direction of the rotating drum. Thus, the structure using the expensive rack plate not only increases the cost of the device,
Serviceability is also not good. On the other hand, since a reel base braking component for braking the take-up side reel base unit is also required, not only does the cost of the device increase in the same manner as described above, but the assembly workability and serviceability are also poor. There is a problem.

Therefore, there is a demand for a reel base braking mechanism having a simple structure which cooperates with a stable cassette loading and tape loading mechanism for simultaneously carrying out cassette loading and tape loading.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and a winding reel is constructed by winding a magnetic tape wound around a supply reel inside a box body along the front surface of the box body. The tape cassette, which is wound around the front side of the box body, has an opening formed between the supply reel and the take-up reel into which the tape-loading component on the apparatus side is inserted. It is attached to a slide deck assembly equipped with a reel base and moving on a chassis base, and the slide deck assembly is moved integrally with the tape cassette in the direction of the rotary drum to make the rotary drum bite into the opening, and Moving the tape loading component from the opening to the outside of the box, pulling out the magnetic tape toward the rotating drum, and pulling the magnetic tape from the rotating drum. A magnetic recording and / or reproducing apparatus for recording and / or reproducing by spirally abutting over a predetermined angle, wherein the magnetic tape is rotated by a motor for moving the tape loading component and the slide deck assembly. A moving cam body, and a slide lever that has an abutting portion formed at one end and an engaged portion formed at the other end via a rotation shaft and is rotatably supported by the slide deck assembly. Moving the slide deck assembly in the direction of the rotating drum with an engagement portion that is rotated in cooperation with the rotation of the cam body and that engages with an engaged portion of the slide lever, At the same time, an arm member that moves the tape loading component in the magnetic tape pull-out direction and an abutting portion that comes into contact with and separates from a fixing member that is fixed to the chassis base are formed at one end of the arm member. To the end A braking lever for braking the supply reel base and a contacted portion for contacting and separating the contacting portion of the sliding lever, and a brake lever pivotally supported by the slide deck assembly. When the tape cassette is placed on the slide deck assembly, the contact portion of the brake lever contacts the fixing member to bring the brake lever into the non-braking state, and By the movement, the contact portion of the brake lever is separated from the fixing member to bring the brake lever into the braking state, and at the movement end position of the slide deck assembly in the rotating drum direction, the contact portion of the brake lever is brought into contact. A magnetic recording and / or reproducing apparatus, characterized in that an abutting portion of the sliding lever abuts to bring the brake lever into a non-braking state. Is provided.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a magnetic recording and / or reproducing apparatus according to the present invention will be described below with reference to FIGS. 1 to 19 <tape cassette>, <configuration of magnetic recording and / or reproducing apparatus>,
<Overall operation of magnetic recording and / or reproducing apparatus> and <Operation of supply side brake lever> will be described in detail in the order of items.

<Tape Cassette> FIG. 1 is a perspective view for explaining a tape cassette used in the magnetic recording and / or reproducing apparatus according to the present invention.

Before describing the magnetic recording and / or reproducing apparatus according to the present invention, the tape cassette used here will be briefly described with reference to FIG.

In the tape cassette 1 shown in FIG. 1, a lower half member 2a and an upper half member 2b are formed of a resin material into two substantially divided parts, and the outer shape of both the half members 2 is two.
Together, a and 2b are formed into a rectangular box body 3. A magnetic tape T is wound and housed inside the box 3 between a supply reel 4 and a take-up reel 5, and the magnetic tape T discharged from the supply reel 4 is provided on the front side. The tape is wound around the take-up reel 5 by being wound around the tape guides 6 and 7 on the supply side and the take-up side.

On the front side of the box body 3, there is formed a first opening 3a in which the lower half member 2a is largely lightened with the supply side tape guide 6 and the winding side tape guide 7 interposed therebetween. .. A part of the rotary drum 12 on the side of the device 10 and a tape loading component described later can be inserted into the first opening 3a.

A second opening 3b is formed between the side wall 3d on the supply side of the box body 3 and the tape guide 6 to guide the magnetic tape T from the supply reel 4 to the outside of the cassette during tape loading. Similarly, between the side wall 3e on the winding side of the box 3 and the tape guide 7, the magnetic tape T is loaded from the outside of the cassette to the take-up reel 5 during tape loading.
A third opening 3c is formed for introduction into. The second opening 3b and the third opening 3c are formed in a space sandwiched between the lower half member 2a and the upper half member 2b of the box body 3.

Further, the front lid 8 and the slider 9 shown by the chain double-dashed line are provided with the first to third openings 3a to 3c and the magnetic tape T.
It is provided to cover up. The front lid 8 and the slider 9 are opened in cooperation with the operation of mounting the tape cassette 1 in the apparatus, but detailed description thereof will be omitted here.

<Structure of Magnetic Recording and / or Reproducing Device> FIG. 2 is a perspective view showing the entire structure of the magnetic recording and / or reproducing device according to the present invention, and FIG. 3 shows the slide deck assembly shown in FIG. It is the exploded perspective view shown. FIG. 4 is a plan view showing a state before the tape loading and the tape loading by mounting the tape cassette on the magnetic recording and / or reproducing apparatus according to the present invention, and FIG. FIG. 11 is a plan view showing a state in which a tape cassette is mounted on the reproducing apparatus and the cassette loading and tape loading operations are completed.

In the magnetic recording and / or reproducing apparatus 10 (hereinafter also referred to as apparatus 10) according to the present invention, the tape cassette 1 is mounted on a slide deck assembly 15 movably provided on the front side of a chassis base 11 of the apparatus 10. And the tape cassette 1 is moved integrally with the slide deck assembly 15. In particular, the brake lever 30 provided on the supply reel base 28 side of the slide deck assembly 15 cooperates with the movement of the slide deck assembly 15. As shown in FIG. 5, the tape cassette 1 is fed to the rotary drum 12 provided at the back of the chassis base 11 while being configured to work to brake the supply reel base 28, and after the cassette loading and the tape loading are completed. The cassette loading operation of moving the magnetic tape T from the tape cassette 1 The tape loading operation of pulling out by the housing component member and helically abutting the rotary drum 12 at a predetermined angle is performed by the arm member (arm gear) 60 that cooperates with the cam body (control cam gear) 53 connected to the drive source. The feature is that it is configured to be performed at the same time.

First, the structure of the magnetic recording and / or reproducing apparatus 10 according to the present invention will be described with reference to FIGS.

As shown in FIG. 2, the chassis base 11 which is the base of the magnetic recording and / or reproducing apparatus 10 is formed in a frame body whose periphery is bent using a sheet metal material such as an aluminum plate. A rotary drum 12 having a rotary head (not shown) is provided on the back of the chassis base 11.
On the front side of the chassis base 11, the slide deck assembly 15 for mounting the tape cassette 1 is projected to the front side from the front end portion of the chassis base 11 in the initial state, and the slide deck assembly 15 is arranged in the rotating drum direction ( It is provided so as to be movable in the direction of arrow A1). That is, the upper surface 16a of the slide deck base 16 which constitutes the slide deck assembly 15 is formed flat for mounting the tape cassette 1, and the elliptical hole 16a formed near the left and right ends.
_The studs 57 and 11a ₁ fixed to the upper surface 11a of the chassis base 11 are slidably fitted to the _first and 16a ₂ and the left and right side surfaces 16b and 16 of the slide deck base 16.
The elliptical hole 1 in which the guide rods 16b ₁ and 16c ₁ fixed to c are formed in the left and right side surfaces 11b and 11c of the chassis base 11.
It is slidably fitted in 1b ₁ and 11c ₁ . The stud 57 also shares a pivotal fulcrum of a control arm 58 described later.

Further, as shown in FIG. 3, the slide deck assembly 15 includes a slide deck base 16 and a reel base 27 made of a sheet metal material such as an aluminum plate, a part of the tape loading components described below, and a reel stand. Etc. are attached and assembled integrally. That is, in the vicinity of the left side surface 16b of the upper slide deck base 16, the entrance roller 1 for restricting the running of the magnetic tape T on the supply side is provided.
An entrance lever 18 having 7 supported at one end is urged clockwise about a shaft 19 by a torsion spring (not shown). The slide deck base 16 has a first opening 3a of the tape cassette 1 to be placed.
An opening 16e is formed in a portion facing (FIG. 1). A part of the tape loading component is inserted in the opening 16e, that is, the tension roller 34 supported by the tension arm 35 on the reel base 27 side is inserted on the left side (supply side), while the right side is formed on the right side. On the (winding side), a pinch roller arm 21 rotatably supporting a pinch roller 20 is rotatably supported around a shaft 22 fixed to the slide deck base 16, and a take-up lever 24 rotatably supporting a take-up roller 23. Is rotatably supported about the shaft 25. The pinch roller arm 21 is operated at a predetermined timing by a pinch roller cam gear 56 (FIG. 7) described later, and the take-up lever 24 is operated by moving the slide deck assembly 15 in the direction of the rotating drum. ..

On the other hand, on the lower reel base 27, the supply reel 4 and the take-up reel 5 of the tape cassette 1 to be placed.
A supply reel base 28 and a take-up reel base 29 that engage with (FIG. 1) and are driven to rotate are attached.
The holes 8 and 29 are inserted into the reel holes 16a ₃ and 16a ₄ formed in the upper slide deck base 16 from the lower side so as to project from the upper surface 16a of the slide deck base 16. Further, the reel base 27 has a braking portion 30 that comes in contact with and separates from a gear portion 28a of the supply reel base 28, which is an essential part of the present invention.
"V-shaped" with a (hereinafter referred to as gear portion 30a) formed
The brake lever 30 is rotatably provided with a tension spring 32a biasing the stud 31a in the counterclockwise direction. In the vicinity of the contact portion 30b formed at one end of the brake lever 30, a stud 57 of the control arm 58, which will be described later, is inserted into the elliptical escape hole 27a of the reel base 27 from below, and the upper slide deck as described above. The base 16 is fitted into the elliptical hole 16a ₁ . Then, in cooperation with the movement of the slide deck assembly 15, the contact portion 30b of the brake lever 30 contacts and separates from the stud (fixing member) 57, thereby performing the contact and separation operation of the brake lever 30 and the brake lever 30.
The contact portion 33a of the sliding lever 33 described below comes into contact with and separates from the contacted portion 30c (hereinafter referred to as the bent portion 30c) formed at the other end of the brake lever 30.
The contact / separation operation is performed. The stud 57 that contacts and separates the contact portion 30b of the brake lever 30 serves as a fixing member fixed to the chassis base 11, and can be separated and attached with a light load according to the movement of the slide deck assembly 15. The shape is not particularly limited as long as it exists. The braking operation of the brake lever 30 is an essential part of the present invention, and will be separately described in detail in the section <Operation of supply side brake lever>.

A sliding lever 33 is provided near the brake lever 30 so as to be rotatable about a stud 31b by a tension spring 32b in a clockwise direction. The engaged portion 33b of the sliding lever 33
An engaging portion 60c (hereinafter, referred to as a pin 60c) fixed to an arm gear 60, which will be described later, is fitted into the (hereinafter, referred to as Z groove 33b) from below, and the slide deck assembly 15 is moved in the rotating drum direction (arrow A ₁ direction). ), Or can be returned to the front direction (arrow A ₂ direction). Further, on the left side (supply side) of the reel base 27, a tension arm 35 having a tension roller 34, which is a part of a tape loading component, pivotally supported at its tip end, is rotated counterclockwise about a shaft 36 by a tension spring 32c. Is urged by. An outer peripheral portion 28b of the supply reel base 28 is wound around the tension arm 35, and the supply reel base 28 is
Both ends of a friction braking member 37 (hereinafter, referred to as a tension control band 37) that frictionally brakes are fastened together with the buffer member 38 and hung below the elongated hole 35a in the figure. A buffer member 38 having a leaf spring piece 38a is fixed to the tension arm 35 near the lower part of the drilled elongated hole 35a in the figure, and is rotated by a control cam gear 53 described below from below the elongated hole 35a. The pin 58a (FIG. 6) fixed to the tip of the moving control arm 58 enters to move the tension arm 35 at a predetermined timing.

In the embodiment, the slide deck base 16
Side and reel base 27 side are separately configured and both are assembled into a two-layer structure by studs 31a to 31d and screws, but not limited to this, all members on the reel base 27 side are attached to the slide deck base 16 side. A single layer structure may be used.

Returning to FIG. 2 again, the protrusion 18a provided on the end portion of the entrance lever 18 is provided on the high surface 13a of the trapezoidal bracket 13 which is formed to project inside the left side surface 11b of the chassis base 11 before starting the tape loading. Abutting, so that before the tape loading starts, the entrance roller 17 causes the second opening 3 of the tape cassette 1 to come into contact.
It is positioned outside b. The entrance roller 17 is located outside the tape cassette 1 before the tape loading is started, but the projection 18 of the entrance lever 18 is moved by the movement of the slide deck assembly 15 in the rotating drum direction during the cassette loading operation described later.
Since a moves from the high surface 13a of the trapezoidal bracket 13 along the inclined surface 13b connected to this, the entrance lever 18 rotates clockwise around the shaft 19 and enters the second opening 3b. It is like this. In this way, by forming the magnetic tape running system in which the entrance roller 17 for guiding the running of the magnetic tape T is inserted (embedded) into the second opening 3b of the tape cassette 1 at the time of tape loading, the magnetic tape running system is formed. Tape T
An efficient magnetic tape running system that can effectively use the running space of the magnetic tape T can be realized, and the running load of the magnetic tape T can be reduced. 3a, the front end of the chassis base 11 and the front end of the slide deck assembly 15 can be in contact with each other when the cassette loading and tape loading operations are completed, as shown in FIG. The depth dimension D of the device 10 is almost the same when recording and / or reproducing or when the device 10 is transported.
_{Since 1} can be shortened, there is an advantage that the size of the device 10 can be further reduced.

Further, on the upper surface 11a side of the chassis base 11, a first tape guide member 41 vertically supported by the first loading base 40 (hereinafter referred to as a supply-side upper regulation guide roller 41 or a guide roller 41). ), A second tape guide member 43 vertically supported by the second loading base 42 (hereinafter referred to as a winding-side upper regulation guide roller 43 or a guide roller 43), and a third loading base 44. A guide fixed to the upper surface 11a of the chassis base 11 by three sets of a third tape guide member 45 (hereinafter, referred to as a winding-side lower regulation guide roller 45 or a guide roller 45) that is inclined and supported in a predetermined direction. First of the rail plate 46
~ Each set is slidably attached along the third guide rails 46a to 46c. The first to third guide rails 46a to 46c are integrally formed on the guide rail plate 46 using a resin material or the like. The guide rollers 41, 43, and 45 supported by the first to third loading bases 40, 42, and 44 are substantially central in the opening 16e formed in the slide deck base 16 before the tape loading is started. The tape cassette 1 also faces the first opening 3a (FIG. 1).

The first guide rail 46a for guiding the first loading base 40 is provided on the left supply side with the rotary drum 12 as the center, and extends from the opening 16e to the upper surface 11a of the chassis base 11. Are formed parallel to each other and gradually incline upward (with respect to the paper surface) as they approach the inlet side of the rotary drum 12 into which the magnetic tape T enters, and the end of the first guide rail 46a is formed into a high inclined surface. ing. The second guide rail 46b that guides the second loading base 42 is provided on the right winding side around the rotary drum 12, and extends from the opening 16e along the upper surface 11a of the chassis base 11. The magnetic tapes T are formed in parallel and gradually incline downward (with respect to the paper surface) as the magnetic tape T approaches the exit side from the rotary drum 12, and the end of the second guide rail 46b is the end of the first guide rail 46a. Is formed on a lower inclined surface than a high inclined surface. Further, the third guide rail 46c that guides the third loading base 44 is located on the right side of the second guide rail 46b from the opening 16e, away from the outlet side of the rotary drum 12, and downstream of the second guide rail 46b. It is provided on the side and is formed on a surface parallel to the upper surface 11 a of the chassis base 11. The above-mentioned supply-side upper regulation guide roller 41, winding-side upper regulation guide roller 43, and winding-side lower regulation guide roller 45 can be adjusted in height by a mounting screw mechanism (not shown) so that the first to third loading bays can be adjusted. Although it has upper and lower flanges that are supported by the rollers 40, 42 and 44 and that regulate the upper and lower ends of the magnetic tape T,
In particular, the supply side upper regulation guide roller 41 and the winding side upper regulation guide roller 43 regulate the upper end portion of the magnetic tape T,
The winding-side lower regulation guide roller 45 regulates the lower end portion of the magnetic tape T. In addition, the first to third guide rails 46a
The end portions of ~ 46c are open, and the first to third guide rails 8 formed on the slant base 81 (Fig. 9) described later are included.
It is adapted to communicate with 1b ₁ , 81c ₁ and 81d ₁ .

The tension roller 34, the supply side upper regulation guide roller 41, and the winding side upper regulation guide roller 4 described above.
3, the take-up side lower regulation guide roller 45 and the take-up roller 23 hang from the left side to the right side in the opening 16e of the slide deck base 16 and stand by, and the first opening 3b of the tape cassette 1 ( Figure 1) Enter the magnetic tape T
Plays the main function of the tape loading component that pulls the tape out of the tape cassette 1.

Next, a cassette loading operation of moving the tape cassette 1 placed on the slide deck assembly 15 into the rotary drum 12 and a magnetic tape T from the tape cassette 1 by the above-mentioned tape loading components. A cassette and a tape loading drive mechanism section that simultaneously perform a tape loading operation for drawing out will be described with reference to FIGS. 2, 4, and 6 to 8, and mainly with reference to FIGS. 6 and 7.

FIG. 6 is a perspective view for explaining a cassette and tape loading drive mechanism for simultaneously performing cassette loading and tape loading, and removing the slide deck assembly and the guide rail plate shown in FIGS. 2 and 4. FIG. 6 is a diagram showing an initial state of loading. Further, FIG. 7 is a plan view showing the state shown in FIG. 6 in plan view. Further, FIG. 8 is a plan view for explaining a cassette and tape loading drive mechanism for simultaneously performing cassette loading and tape loading, and removing the slide deck assembly and the guide rail plate shown in FIGS. 2 and 4. It is a figure showing a loading completion state.

A loading motor 50 serving as a driving source for moving the tape loading component and the slide deck assembly 15 is provided on the upper left side of the chassis base 11, and the rotation of the loading motor 50 is set in the gear box 51. It is decelerated by a provided gear series (not shown), and its output is transmitted to the outside of the gearbox by the output gear 51a. The output gear 51a is rotated by the encoder gear 52, the cam body 53 (hereinafter referred to as the control cam gear 53).
7), and as shown in FIG.
It is transmitted to the pinch roller cam gear 56 via the second transmission gears 54 and 55. The control cam gear 53 has a pin 5 fixed to a control arm 58 described below.
8b is fitted with the first cam groove 53a (hereinafter, cam groove 53a
A second cam cam groove 53b into which a pin 60b fixed to an arm gear (arm member) 60 described below fits.
(Hereinafter referred to as the cam groove 53b) is formed. In addition, the left stud 57 fixed to the lower front of the chassis base 11 has a "reverse dogleg" control arm 5.
8 is rotatably supported, while the right stud 59 is rotatably supported by a "dogleg" arm member 60 (hereinafter referred to as an arm gear 60). A pin 58a is fixed to the tip of the control arm 58. The pin 58a is fitted into the elongated hole 35a (FIG. 3) of the tension arm 35, and the control cam gear 53 is provided between the pin 58a and the stud 57. 58 that fits into the cam groove 53a of
b is fixed.

An arc gear portion 60a is formed at one end of the arm gear 60, and a pin 60b fitted into the cam groove 53b of the control cam gear 53 is fixed between the stud 59 and the arc gear portion 60a. Further, a pin 60c fitted to the Z groove 33b (FIGS. 2 and 3) of the sliding lever 33 provided on the slide deck 12 is fixed to the other end portion through the stud 59. Therefore, when the control cam gear 53 is rotated clockwise during the cassette loading and tape loading operations described later, the pin 5 of the control arm 58 that slides in the cam groove 53a.
The control arm 58 is rotated counterclockwise about the stud 57 by 8b, and the tension arm 35 fitted with the pin 58a is further rotated counterclockwise. The tension supported by the tension arm 35 at a predetermined timing. The roller 34 is pulled out of the tape cassette 1, and the arm gear 60 rotates counterclockwise about the stud 59 by the pin 60b of the arm gear 60 sliding in the cam groove 53b. The slide deck assembly 15 is moved in the direction of the rotary drum 12 at a predetermined timing via the sliding lever 33 fitted with.

Further, an arcuate gear portion 60a formed at one end of the arm gear 60 meshes with a supply loading gear 62 that rotates about a shaft 61, and the supply loading gear 62 rotates about a shaft 68. Further, the intermediate gear 69 meshes with a take-up loading arm 72 integrally formed with a gear portion 72a which rotates about a shaft 71. The supply loading gear 62, the intermediate gear 69, and the gear portion 7 described above.
The tape loading gear train 2a serves to move the guide rollers 41, 43, 45 supported by the first to third loading bases 40, 42, 44 in the pull-out direction of the magnetic tape T as described below. .. Incidentally, the shafts 61, 6
Reference numerals 8 and 71 are fixed to the chassis base 11, and the supply loading gear 62, the intermediate gear 69, and the take-up loading arm 72 supported by these shafts are located below the guide rail plate 46 (FIGS. 2 and 4). positioned.

A supply loading arm 63 is also rotatably supported on the shaft 61 above the supply loading gear 62, and a pin 62a fixed to the supply loading gear 62 is inserted in an elongated hole 63a formed in the supply loading arm 63. A spring 64 is loosely fitted between the supply loading gear 62 and the supply loading arm 63, and the supply side upper regulation guide roller 41 supported by the first loading base 40 is pressure-bonded after the tape loading is completed. is doing. Therefore, the supply loading arm 63 is biased clockwise by the spring 64 about the shaft 61, and the pin 62a abuts the right end of the elongated hole 63a to position the supply loading arm 63. When is rotated clockwise about the shaft 61, the supply loading arm 63 can rotate integrally with the supply loading gear 62 via the pin 62a. Further, one end of the supply loading arm 63 has a shaft 6
5 is connected to one end of the first loading base connecting toggle arm 66, and the other end of the first loading base connecting toggle arm 66 is connected to the first loading upper part of the guide rail plate 46 via the shaft 67. It is connected to the base 40, and the lower end of the shaft 67 is slidably attached along the first guide rail 46a. Further, inside the intermediate gear 69, the winding-side upper regulation guide roller 43 and the winding-side lower regulation guide roller 45 supported by the second and third loading bases 42 and 44 are pressure-bonded after the tape loading is completed. A spring 70 is provided for this purpose. Further, one end of the take-up loading arm 72 is connected to the take-up toggle arm 7 via a shaft 73.
4 and the other end of the take-up toggle arm 74 is connected via a shaft 75 to one end of two second loading base connecting toggle arms 76 and a third loading base connecting toggle arm 77. Are connected to one end of each. Further, the other end of the second loading base connecting toggle arm 76 is connected to the second loading base 42 above the guide rail plate 46 via the shaft 78, and the lower end of the shaft 78 is the second. Guide rail 46
b is slidably attached along the other side, while the other end of the third loading base connecting toggle arm 77 has a shaft 79.
Is connected to the third loading base 44 above the guide rail plate 46, and the lower end of the shaft 79 is at the third position.
It is slidably attached along the guide rail 46c.

Therefore, when the control cam gear 53 is rotated clockwise in the tape loading operation described later, the pin 60b fixed to the arm gear 60 moves leftward in the drawing along the cam groove 53b of the control cam gear 53. The arm gear 60 rotates counterclockwise around the stud 59, and the take-up loading arm 72 in which the supply loading gear 62, the supply loading arm 63, the intermediate gear 69, and the gear portion 72a are integrally formed via the arcuate gear portion 60a. And these movements cause the first loading base connecting toggle arm 6 to move.
6 and the take-up toggle arm 74 to the second and third loading base connecting toggle arms 76 and 77, and as a result, the first to third loading bases 40, 42 and 44 are transferred to the first to third loading bases. Third guide rails 46a-4
6c, the guide rollers 41, 43, and 45 move toward the rotary drum 12 and pull out the magnetic tape T (FIG. 1) in the tape cassette 1. And
Upon completion of the cassette loading and tape loading operations, the loading component is moved to the position shown in FIG.

Similarly, a cam groove is formed in the pinch roller cam gear 56 shown in FIG. 7, and the pinch roller 20 (FIGS. 2 to 4) supported by the pinch roller arm 21 is moved to the capstan 91 at a predetermined timing. It is designed to be pressed against.

Next, the structure near the rotary drum 12 provided at the back of the chassis base 11 will be described with reference to FIG.

FIG. 9 is a plan view showing the slant base assembly portion and the capstan when the rotary drum is removed after the tape loading shown in FIG. 8 is completed. The slant base assembling section 80 shown in FIG. 9 is unitized and integrally assembled inside the rotary drum 12. That is, the base member 8 of the slant base assembling section 80.
In 1 (hereinafter, referred to as slant base 81), a supply-side inclined surface 81b is formed on the upstream side on the left side and a take-up side inclined surface 81c is formed on the downstream side on the right side, with the drum mounting surface 81a as the center. Furthermore, the take-up side inclined surface 8
A parallel surface 81d is formed on the downstream side on the right side of 1c, and these surfaces 81a to 81d are integrally formed using a die cast material or a resin material. Further, the drum mounting surface 81a, the supply side inclined surface 81b, and the take-up side inclined surface 81c are the upper surface 11a of the chassis base 11 (FIG. 2).
The surfaces are inclined with respect to each other by a predetermined angle. The parallel surface 81d is the chassis base 1
It is a surface parallel to the upper surface 11a of the No. 1.

On the drum mounting surface 81a, a rotary drum 12 having a rotary magnetic head (not shown) is provided with a predetermined inclination in a predetermined inclination direction.

Further, on the supply side inclined surface 81b,
The supply side inclined pole 82 is press-fitted and fixed to the upstream side of the inlet side of the rotary drum 12 at a predetermined height with a predetermined inclination in a predetermined inclination direction. The supply side inclined pole 82 has a function of correcting the traveling direction so that the magnetic tape T drawn from the supply reel 4 (FIG. 1) is spirally attached to the rotating drum 12. Further, the supply-side tape guide member 8 is provided downstream of the supply-side inclined pole 82 and between the supply-side inclined pole 82 and the inlet side of the rotary drum 12.
3 (hereinafter, referred to as the supply side lower regulation guide roller 83) can be adjusted in the height direction by a mounting screw mechanism, and
It is fixedly installed vertically to the supply side inclined surface 81b. Further, the first loading base 4 is provided between the supply-side lower regulation guide roller 83 and the inlet side of the rotary drum 12.
0 upper feed guide roller supported vertically (first
(Tape guide member) 41 inclines into a predetermined final position of the first guide rail 81b ₁ of the supply-side inclined surface 81b connected to the high inclined surface at the terminal end of the first guide rail 46a, and completes the tape loading. After that, the magnetic tape T can be guided to the entrance side of the rotary drum 12. That is, the supply side upper regulation guide roller 41
Can be guided directly to the inlet side of the rotary drum 12 downstream of the supply side inclined pole 82. At this time, the supply-side upper regulation guide roller 41 is crimped and positioned by the spring 64 (FIGS. 6 to 8) hooked between the supply loading gear 62 and the supply loading arm 63 described above.

On the outlet side of the rotary drum 12, the second
The winding-side upper regulation guide roller (second tape guide member) 43 vertically supported by the loading base 42
The second guide rail 8 of the take-up side inclined surface 81c that is connected to the lower end of the guide rail 46b from the lower inclined surface.
The magnetic tape T ejected from the rotary drum 12 can be guided downstream after the tape loading is completed by inclining into the predetermined final position of 1c ₁ . At this time, the winding-side upper regulation guide roller 43 is pressure-bonded and positioned by the spring 70 (FIGS. 6 to 8) provided inside the intermediate gear 69. After the tape loading is completed, as described above, the end of the second guide rail 46b is formed on a slope lower than the high slope of the end of the first guide rail 46a. The magnetic tape T can be guided so as to be helically abutted along the lead by the 41 and the winding-side upper regulation guide roller 43 without riding on the lead (not shown) of the rotary drum 12.

Further, the lower winding-side regulating guide roller (third tape guide member) 45 supported by the third loading base 44 at a predetermined angle is provided with the second guide rail 4.
The tape is slanted to the predetermined final position of the third guide rail 81d ₁ on the parallel surface 81d connected to the parallel surface at the end of the third guide rail 46c and away from the outlet side of the rotary drum 12 on the downstream side of 6b. It has entered after loading is completed. At this time, the take-up side lower regulation guide roller 45 is
The spring 70 provided inside the intermediate gear 69 (see FIGS.
It is crimped and positioned according to FIG. 8). When the tape loading completion position shown in the drawing is reached, the inclination angle of the winding-side upper regulation guide roller 43 and the inclination angle of the winding-side lower regulation guide roller 45 are set to be parallel.

Further, the take-up side inclined pole 84 is press-fitted and fixed to the parallel surface 81d at a predetermined height with a predetermined inclination in a predetermined inclination direction. The take-up side inclined pole 84 is installed at a position downstream from the exit side of the rotary drum 12 and downstream of the winding-side lower regulation guide roller 45 that has reached the tape loading completion position. , The magnetic tape T coming out from the outlet side of the rotary drum 12 while inclining, and the capstan 9 on the downstream side.
1, and also has a function of correcting the traveling direction so that the tape is wound around the take-up reel 5 (FIG. 1) in the tape cassette 1.
The fixedly installed supply-side tilt pole 82 and take-up-side tilt pole 84 are installed such that the magnetic surface side of the magnetic tape T is abutted by the tape path shown in FIG.

Therefore, the supply reel 4 of the tape cassette 1
The magnetic tape T from (Fig. 1) is the chassis base 11
Running parallel to the upper surface 11a of the magnetic tape T, and thereafter, the running direction of the magnetic tape T is corrected by the supply side inclined pole 82, and the magnetic tape T runs by the supply side lower regulation guide roller 83 and the supply side upper regulation guide roller 41. After being regulated, it enters the inlet side of the rotary drum 12 mounted on the drum mounting surface 81a. And the rotary drum 12
The magnetic tape T, which comes out from the outlet side of the rotary drum 12 while being spirally attached to the upper side of the rotary drum 12, is wound on the winding-side upper regulation guide roller 4.
3, the traveling direction is corrected by the take-up side inclined pole 84 via the take-up side lower regulation guide roller 45, and then the magnetic tape T passing through the take-up side inclined pole 84 is again placed on the upper surface 11a of the chassis base 11. The winding reel 5 of the tape cassette 1 runs parallel to each other while being nipped and run by the capstan 91 and the pinch roller 20.
(FIG. 1).

As described above, the slant base assembling section 80
In order to attach the magnetic tape T to the rotary drum 12 in a spiral manner, the slant base 81, which is one component, is centered on the rotary drum 12, and the supply side inclined pole 82 and the supply side lower regulation guide roller are arranged on the left side. 83 is fixedly installed, and a take-up side inclined pole 84 is fixedly installed on the right side. These members 82 to 84 are unitized and assembled on the slant base 81, and after the assembly is completed, the chassis base 11 near the rotating drum 12 is assembled. Since it is attached to the upper surface 11a, the assembling workability and the assembling accuracy of the device 10 can be improved. Further, since the supply-side upper regulation guide roller 41, the winding-side upper regulation guide roller 43, and the winding-side lower regulation guide roller 45, which are part of the tape loading component, are pressure-bonded and positioned on the slant base 81.
The relative positional accuracy of each becomes high. In particular, the supply side inclined pole 82 and the take-up side inclined pole 84 are fixedly installed, so that both inclined poles 8
The predetermined inclination direction accuracy of 2, 84 and the predetermined inclination angle accuracy can be maintained with high accuracy, and the magnetic tape T can be stably run. Therefore, slant base 8
If only 1 is manufactured with high accuracy, other traveling systems (guide rollers, etc.) do not need to be highly accurate, and the device 1
0 has a simple structure and can realize cost reduction.

Further, according to this magnetic tape running system, the guide rollers 83, 41, 4 for vertically controlling the magnetic tape T are controlled.
Since there is no inclined pole between 3, 45 and the rotating drum 12, distortion of the magnetic tape T caused by mounting error of the inclined pole does not occur.

When the magnetic tape T is pulled out from the tape cassette 1 to the rotary drum 12 by the supply side upper regulation guide roller 41, the winding side upper regulation guide roller 43, and the winding side lower regulation guide roller 45, Up to the inlet side (supply side), the supply side upper regulation guide roller 41
In addition, the amount of pulling out is reduced and the space between the winding-side upper regulation guide roller 43 and the winding-side lower regulation guide roller 45 is formed large on the outlet side (winding side) of the rotary drum 12. On the other hand, the reason why the take-up side magnetic tape T is pulled out more and the gap between the winding-side upper regulation guide roller 43 and the winding-side lower regulation guide roller 45 is made larger is that the magnetic tape T runs in reverse. Tape cassette 1
Since the distance between the capstan 91 and the capstan 91 is short, if the winding disturbance of the magnetic tape T in the tape cassette 1 is large, the magnetic tape T cannot be completely removed, and it is sandwiched and driven by the capstan 91 and the pinch roller 20 (FIGS. 2 to 4). It may be done. In this case, the magnetic tape T sent by the capstan 91 runs unstable, but if the interval between the winding-side upper regulation guide roller 43 and the winding-side lower regulation guide roller 45 is increased, During this time, the unstable traveling is absorbed, and the magnetic tape T is correctly regulated to run in the reverse direction by the winding-side upper regulating guide roller 43 and can enter the rotating drum 12.

Next, the method of driving the magnetic tape will be described with reference to FIG.
10 and FIG. 10 will be described together. FIG. 10 is a sectional view showing the capstan assembly. The capstan 91 shown in FIG. 8 is a capstan assembly 90 (hereinafter, referred to as a capstan motor 9) integrally assembled as shown in FIG.
Directly driven by 0). This capstan 9
The magnetic tape T is run by pressing the pinch roller 20 (FIGS. 2 to 4) onto the magnetic tape 1. In the capstan motor 90 shown in FIG. 9, a capstan 91 is rotatably supported by bearings 93a and 93b fitted in a capstan housing 92. A coil substrate 94 is fixed to the capstan housing 92. The rotor 95 is press-fitted into the lower end of the capstan 91 and rotates integrally. A gear portion 95a is formed on the outer peripheral portion of the rotor 95, and the gear portion 95a meshes with the transmission gear 96 to transmit the rotational force. Rotational force is transmitted from the transmission gear 96 to the center gear 98 shown in FIG. 8 via the belt 97, and the supply reel base 28 and the take-up reel base 29 are shown.
(Figs. 2 and 3) are rotationally driven. Here, since the gear portion 95a formed on the outer peripheral portion of the rotor 95 of the capstan motor 90 and the transmission gear 96 perform high-speed meshing transmission as relative speed, the rotation center axis of the rotor 95 and the rotation center of the transmission gear 96 are transmitted. If the accuracy of the distance J between the shaft and the shaft is not accurate, a meshing failure occurs and noise is generated. This noise not only hinders the quietness of the device 10,
Vibration occurs, which adversely affects performance such as jitter and wow and flutter. However, in this embodiment, the rotation shaft 96a of the transmission gear 96 is fixed to the coil substrate 94, and the rotation shaft (capstan) of the rotor 95 is also fixed to the coil substrate 94 via the capstan housing 92. The dimensional accuracy of the distance J is easy to obtain, and the above problems do not occur.

<Overall Operation of Magnetic Recording and / or Reproducing Device> Here, in the magnetic recording and / or reproducing device 10 having the above-described configuration, the control cam gear 5 in which cassette loading and tape loading are connected to a drive source.
The operation simultaneously performed by the arm gear 60 that cooperates with 3 will be briefly described with reference to FIGS. 2 to 6 and 11 to 16.

11 to 16 are views for explaining cassette loading and tape loading in the order of steps.

(Step 1) ... FIG. 11 shows an initial state of the inside of the apparatus 10, showing a state before the cassette loading of the tape cassette 1 placed on the slide deck assembly 15 and the tape loading of the magnetic tape T, This is the same state as the initial state shown in FIGS. 2, 4, and 6.

(Step 2) ... When the loading motor 50 which is the drive source shown in FIG. 6 is operated from the initial state, the control cam gear 53 starts to rotate clockwise, and the cassette loading and tape loading operations are started. To do. That is, as shown in FIG. 12, the tension roller 34 is pulled out from the first opening 3a of the tape cassette 1 to form the illustrated magnetic tape path. In this operation, when the control cam gear 53 is rotated clockwise, the control arm 58 is rotated counterclockwise about the stud 57 by the pin 58b of the control arm 58 which slides in the cam groove 53a of the control cam gear 53. Further, the tension arm 35 fitted with the pin 58a is rotated counterclockwise, and the tension roller 34 pulls the magnetic tape T out of the tape cassette 1.

(Step 3) As shown in FIG. 13, the tape cassette 1 placed on the slide deck assembly 15 starts to slightly move in the direction of the rotary drum 12 (direction of arrow A ₁ ).
In cooperation with this, the take-up roller 23 makes the first opening 3
drawn from a. In the operation of the take-up roller 23, the arm gear 60 rotates counterclockwise about the stud 59 by the pin 60b of the arm gear 60 that slides in the cam groove 53b of the control cam gear 53, and further the pin (engaging portion) 60c. Slide lever 33 fitted with
Since the slide deck base 16 is moved in the direction of the rotary drum 12 via the Z groove (engaged portion) 33b, the take-up roller 23 supported by the slide deck base 16 moves the magnetic tape T out of the tape cassette 1. Withdraw.
Further, the winding-side upper regulating guide roller 43 supported by the second loading base 42 precedes and is pulled out from the first opening 3a, and a little later than the winding-side upper regulating guide roller 43, the third loading base. The winding-side lower regulation guide roller 45 supported by the base 44 is pulled out from the first opening 3a and is not operating in this step, but it is delayed from the winding-side lower regulation guide roller 45 and the first loading belt. The supply-side upper regulation guide roller 41 supported by the base 40 is pulled out from the first opening 3a, and the illustrated magnetic tape path is formed. The guide rollers 41, 4
In the operations of 3, 45, the supply loading gear 62 meshed with the arcuate gear portion 60a of the arm gear 60 is rotated by the counterclockwise rotation of the arm gear 60, and the gear portion 72a is further integrated via the intermediate gear 69. The formed take-up loading arm 72 rotates. Then, the first loading base 40 connected to the supply loading gear 62 and the second and third loading bases 42 and 44 connected to the take-up loading arm 72 operate in the above timing order. The difference between the timings of the first to third loading bases 40, 42, 44 is that the second loading base 42 has the first opening 3a in the initial state.
The first loading base 40 is located at a position preceding the third loading base 44, and the first loading base 40 has a pin 62a fixed to the supply loading gear 62 in a long hole 63a formed in the supply loading arm 63. Delay until you move to.

(Step 4) ... As shown in FIG. 14, when the tape cassette 1 further moves in the direction of the rotary drum 12, the entrance roller 17 cooperates with this and enters the second opening 3b of the tape cassette 1. .. In the operation of the entrance rollers 17, the arrow A ₁ direction movement of the slide deck assembly 15, the protrusions 1 of the entrance lever 18
8a is the inclined surface 2 from the high surface 23a of the trapezoidal bracket 23.
Since it moves along 3b, the entrance lever 18 rotates clockwise about the shaft 19 and the entrance roller 17 enters the second opening 3b.

(Step 5) ... As shown in FIG. 15, the tape cassette 1 further moves toward the rotary drum 12, and a part of the rotary drum 12 bites into the first opening 3a of the tape cassette 1. Further, the first to third loading bases 40 supporting the supply-side upper regulation guide roller 41, the winding-side upper regulation guide roller 43, and the winding-side lower regulation guide roller 45,
42 and 44 slide along the first to third guide rails 46a to 46c of the guide rail plate 46. At this time, the preceding winding-side upper regulation guide roller 43 is moved to the second guide rail 4
The magnetic tape T is rotated along the rotating drum 1 while descending along 6b.
The magnetic tape T of the rotary drum 12 is attached to the second lead (not shown), and the supply-side upper regulation guide roller 41 rises along the first guide rail 46a later than the winding-side upper regulation guide roller 43. Attach to the lead. Therefore, by shifting the timing of the preceding winding by the lowering of the winding-side upper regulation guide roller 43 and the winding by the rising of the supply-side upper regulation guide roller 41 delayed from the winding-side upper regulation guide roller 43, the magnetic tape T Can be stably attached to the rotary drum 12, and the strain generated in the magnetic tape T can be reduced by half.

(Step 6) ... As shown in FIG. 16, the supply-side upper regulating guide roller 41, the winding-side upper regulating guide roller 43, and the winding-side lower regulating guide roller 45 further include the first to third guide rails 46a. 46c to a predetermined final position of the slant base 81 (FIGS. 8 and 9) provided in the vicinity of the rotary drum 12, and the magnetic tape T is spirally attached to the rotary drum 12 at a predetermined winding angle. At this time, since the moving distance of the winding-side lower regulation guide roller 45 is formed sufficiently long, the supply-side upper regulation guide roller 41 is formed.
And the winding-side upper regulation guide roller 43
Is firmly attached to the rotary drum 12 in a spiral shape at a predetermined winding angle and positioned at the final position, and then the winding-side lower regulation guide roller 45 is positioned at the final position.
As described above, the guide rollers 41, 43, and 45 can increase the amount of pulling out the magnetic tape T from the supply side to the winding side. Also, the movement of the tape cassette 1 is stopped. After that, slide deck base 1
The pinch roller 20 supported by 6 is pulled out from the first opening 3a and pressed against the capstan 91, and the magnetic tape T
Is performed, and the same state as that shown in FIG. 5 is reached.
The operation of pulling out the pinch roller 20 from the first opening 3a is performed by the pinch roller cam gear 56.

As described above in detail, in the magnetic recording and / or reproducing apparatus 10 according to the present invention, the tape cassette 1 is mounted on the slide deck assembly 15 movably provided on the front side of the chassis base 11 of the apparatus 10. The tape cassette 1 is mounted and moved integrally with the slide deck assembly 15, and in particular, the tension arm 35 having the tension roller 34 supported by the slide deck assembly 15 cooperates with the cam body (control cam gear) 53. The cassette loading operation of moving by the control arm 58 and moving so as to bite the tape cassette 1 into the rotary drum 12 provided at the back of the chassis base 11 when the cassette loading and the tape loading are completed, and the magnetic tape T Tape cassette 1 to tape loading component Pull out by the rotating drum 12
An arm member (arm gear) 6 that cooperates with a cam body (control cam gear) 53 connected to a drive source for a tape loading operation in which the tape is spirally attached over a predetermined angle.
Since it is configured to be performed simultaneously by 0, the operation time of cassette loading and tape loading can be shortened,
In addition, since both loading operation timing and tension arm 35 operation can be performed without deviation, the quality and reliability of the apparatus 10 are improved, and moreover, cassette loading and tape loading components are efficiently installed in the apparatus 10. It is possible to arrange the above-mentioned components and to reduce the number of components for cassette loading and tape loading, which is advantageous in that the cost of the apparatus 10 can be reduced. Furthermore, the rotary drum 12 bites into the first opening 3a of the tape cassette 1, so that the depth dimension of the device 10 can be set short, which contributes to downsizing of the device 10. <Operation of Brake Lever on Supply Side> Here, the magnetic recording and / or reproducing apparatus 1 having the above-described configuration
0, only the operation of the brake lever 30 provided on the supply reel base 28 side of the slide deck assembly 15, which is a main part of the present invention, will be described with reference to FIGS. 3 and 17 to 19.

17 to 19 are views for explaining the operation of the supply side brake lever, FIG. 17 shows the brake lever in the initial state, and FIG. 18 is the brake lever in the intermediate state of cassette loading and tape loading. FIG. 19 is a view showing the brake lever when the cassette loading and the tape loading are completed. 17 to 19, the tape cassette 1
Are not shown.

(Process) ... FIG. 17 shows the initial state of the inside of the apparatus 10 and shows the same tape cassette mounting state as that of FIG. 11 described above. That is, the brake lever 30 on the supply side, which is rotatably supported by the reel base 27 of the slide deck assembly 15, is biased counterclockwise by the tension spring 32a about the stud 31a, but the brake lever 3
Since the abutting portion 30b formed at one end of 0 abuts on the stud (fixing member) 57 that guides the slide deck assembly 15 in the rotating drum direction (arrow A ₁ direction), the brake lever 30 is rotated counterclockwise. The rotation of is regulated,
Since the gear portion (braking portion) 30a of the brake lever 30 is separated from the gear portion 28a of the supply reel base 28, the brake lever 30 is in the non-braking state with respect to the supply reel base 28. The stud 57 is a fixing member fixed to the chassis base 11 as described above,
Although the fulcrum of the control arm 58 is shared,
It suffices if the fixing member on the chassis base 11 side is such that the abutting portion 30b of the brake lever 30 can be brought into and out of contact with a light load according to the movement of the slide deck assembly 15. Further, since the slide deck assembly 15 is in a stopped state, the reel base 2
The sliding lever 33, which is rotatably supported by 7, does not rotate, and the contact portion 33a of the sliding lever 33 contacts the bent portion (contacted portion) 30c formed at the other end of the brake lever 30. Not in contact with each other. When the supply-side brake lever 30 is in the non-braking state, the supply reel base 28 and the take-up reel base 2 supported by the reel base 27 are provided.
Since 9 is rotatable, it can be easily engaged with the supply reel 4 and the take-up reel 5 (FIG. 1) of the tape cassette 1 to be placed.

(Process) ... From the state of FIG. 17 to the above-mentioned FIG.
When the control cam gear 53 shown in FIG. 18 is rotated clockwise and the arm gear 60 sliding in the cam groove 53b is rotated counterclockwise, as shown in FIG.
The pin (engagement portion) 60c fixed to 0 is the reel base 27
Since it is fitted from below into the Z groove (engaged portion) 33b of the sliding lever 33 which is pivotally supported, the slide deck assembly 15 is moved in the direction of the rotary drum (arrow A ₁ direction). By the movement of the slide deck assembly 15 in the direction of the rotary drum, the contact portion 30b of the brake lever 30 is released from the contact with the stud (fixing member) 57, so that the brake lever 30 is biased by the tension spring 32a. Is rotated counterclockwise about the center of the supply lever base 28 and the gear portion 30a of the brake lever 30 is rotated by the gear portion 28a of the supply reel base 28.
Contact a. By this operation, the supply reel base 28 is brought into a braking state, that is, the brake lever 30.
Brakes the supply reel base 28. On the other hand, the sliding lever 33 is in the middle of rotating counterclockwise around the stud 31b while resisting the urging force of the tension spring 32b, and the abutting portion 33a of the sliding lever 33a has a bent portion (covered portion) of the brake lever 30. The state of contacting the contact portion) 30c is reached. When the brake lever 30 is in a braking state with respect to the supply reel base 28 and the slide deck assembly 15 is moving in the rotating drum direction (direction of arrow A ₁ ), the magnetic tape in the tape cassette 1 is changed by the tape loading component. Although the tape T is pulled out, since the supply reel base 28 is braked, the magnetic tape T wound around the take-up reel 5 (FIG. 1) side is pulled out. In this magnetic tape pulling-out operation, the magnetic tape T is not pulled out from the supply reel 4 side, so there is an advantage that the recording and / or reproduction start position of the magnetic tape T wound around the supply reel 4 does not shift.

(Step) ... As shown in FIG. 19, when the movement of the slide deck assembly 15 in the direction of the rotary drum is completed and the cassette loading and the tape loading are completed, the pin 60c fixed to the arm gear 60 is moved to the sliding lever. Since the sliding lever 33 moves downward in the drawing in the Z groove 33b, the sliding lever 33 further rotates counterclockwise around the stud 31b while resisting the urging force of the tension spring 32b, thereby bending the brake lever 30. The contact portion 33a of the sliding lever 33, which is already in contact with the portion (contacted portion) 30c, rotates the brake lever 30 clockwise around the stud 31a while resisting the biasing force of the tension spring 32a. Therefore, in this state, the gear portion 30a of the brake lever 30 is connected to the gear portion 28 of the supply reel base 28.
Since the brake lever 30 is separated from a, the brake lever 30 is in the non-braking state with respect to the supply reel base 28, and thereafter, various operation modes such as recording and / or reproducing on the magnetic tape can be performed. Further, the tension spring 32b for urging the slide lever 33 in the clockwise direction is extended by the counterclockwise rotation of the slide lever 33, so that the slide deck assembly 15 ends its movement in the rotating drum direction. Then, when it is positioned at a predetermined position by a stopper member not shown,
The biasing force of the tension spring 32b press-fits and positions the slide deck assembly 15 against the stopper member. Incidentally, when the magnetic tape is stopped from the operation mode such as the recording and / or reproducing state and the fast-forwarding state, the drive source for driving the supply reel base 28 and the take-up reel base 29 is the capstan motor 90 (as described above). Since the rotations in FIGS. 8 and 10) are decelerated, the supply reel base 28 and the take-up reel base 29 need not be braked.

As described above, the brake lever structure provided on the supply reel base side of the slide deck assembly 15 which moves on the chassis base 11 in the direction of the rotary drum cooperates with the movement of the slide deck assembly 15 to generate the stud. Since the supply reel base 28 is braked through the (fixing member) 57 and the sliding lever 33, a simple structure with a very small number of parts is used without using expensive parts, and the manufacturing cost is reduced. Assembling workability and serviceability are excellent, and since the braking operation of the brake lever with respect to the supply reel base 28 cooperates with the cassette loading and tape loading operations, it is highly reliable, and
This contributes to the reduction in size and weight of the device 10. Further, when the tape cassette 1 is mounted on the slide deck assembly 15, the brake lever 30 of the supply reel base 28 is in the non-braking state, so that the tape cassette 1 is supplied. The reel 4 and the take-up reel 5 (FIG. 1) can be easily engaged with the supply reel base 28 and the take-up reel base 29 of the slide deck assembly 15, and
When the magnetic tape T is pulled out from the tape cassette 1, the supply reel base 28 is braked and the magnetic tape T wound around the take-up reel 5 side is pulled out. Therefore, recording and / or recording of the magnetic tape T wound around the supply reel 4 is performed. Alternatively, there is an advantage that the reproduction start position does not shift. Of course, when the slide deck assembly 15 has finished moving in the direction of the rotating drum, the supply reel base 28 and the take-up reel base 29 are in the non-braking state, so recording and / or recording on the magnetic tape T can be performed without any trouble. Supports various operation modes such as playback. Further, since only the supply reel base 28 and the take-up reel base 29 of the slide deck assembly 15 are braked on the supply reel base 28 side, the number of reel base braking mechanism parts is small and the cost of the apparatus 10 can be reduced. There are advantages.

[0061]

According to the magnetic recording and / or reproducing apparatus according to the present invention described in detail above, the brake lever structure provided on the supply reel base side of the slide deck assembly which moves on the chassis base in the direction of the rotating drum, Since the supply reel base is braked through the fixing member and the sliding lever in cooperation with the movement of the slide deck assembly, no expensive parts are used and the number of parts is very simple. The structure is good, the manufacturing cost, the assembling workability, the serviceability, etc. are well configured, and the braking operation of the brake lever with respect to the supply reel base cooperates with the cassette loading operation and the tape loading operation, so that the reliability is high and It can contribute to downsizing and weight saving of the device. Moreover, when mounting the tape cassette on the slide deck assembly, the break of the supply reel stand is required. Since the lever is in a non-braking state,
The supply reel and the take-up reel of the tape cassette can be easily engaged with the supply reel stand and the take-up reel stand of the slide deck assembly, and the supply reel stand is braked when the magnetic tape is pulled out from the tape cassette. Since the magnetic tape wound on the take-up reel side is pulled out, there is an advantage that the recording and / or reproduction start position of the magnetic tape wound on the supply reel does not shift. Of course, when the slide deck assembly has finished moving in the direction of the rotating drum, the supply reel base and the take-up reel base are in the non-braking state, so that various problems such as recording and / or reproducing on the magnetic tape can be performed without any trouble. It can support the operation modes of. Further, since only the supply reel stand side of the supply reel stand and the take-up reel stand of the slide deck assembly is braked, there are advantages that the number of reel stand braking mechanism parts is small and the apparatus cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a tape cassette used in a magnetic recording and / or reproducing apparatus according to the present invention.

FIG. 2 is a perspective view showing an overall configuration of a magnetic recording and / or reproducing apparatus according to the present invention.

3 is an exploded perspective view showing the slide deck assembly shown in FIG. 2. FIG.

FIG. 4 is a plan view showing a state in which a tape cassette is mounted on the magnetic recording and / or reproducing apparatus according to the present invention and before cassette loading and tape loading are performed.

FIG. 5 is a plan view showing a state in which a tape cassette is mounted on the magnetic recording and / or reproducing apparatus according to the present invention, and cassette loading and tape loading operations are completed.

FIG. 6 is a perspective view for explaining a cassette and a tape loading driving mechanism for simultaneously performing cassette loading and tape loading, and removing the slide deck assembly and the guide rail plate shown in FIGS. It is the figure which showed the initial state.

FIG. 7 is a plan view showing the state shown in FIG. 6 in plan view.

FIG. 8 is a plan view for explaining a cassette and a tape loading drive mechanism for simultaneously performing cassette loading and tape loading, and removing the slide deck assembly and the guide rail plate shown in FIGS. It is the figure which showed the completion state.

9 is a plan view showing a slant base assembly portion and a capstan when the rotary drum is removed after the tape loading shown in FIG. 8 is completed.

FIG. 10 is a cross-sectional view showing a capstan assembly.

FIG. 11 is a diagram for explaining cassette loading and tape loading.

FIG. 12 is a diagram for explaining cassette loading and tape loading.

FIG. 13 is a diagram for explaining cassette loading and tape loading.

FIG. 14 is a diagram for explaining cassette loading and tape loading.

FIG. 15 is a diagram for explaining cassette loading and tape loading.

FIG. 16 is a diagram for explaining cassette loading and tape loading.

FIG. 17 is a view for explaining the operation of the supply side brake lever, and is a view showing the brake lever in the initial state.

FIG. 18 is a diagram for explaining the operation of the supply-side brake lever, showing the brake lever during the cassette loading and tape loading states.

FIG. 19 is a diagram for explaining the operation of the supply-side brake lever, showing the brake lever in the cassette loading and tape loading completion state.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Tape cassette, 3 ... Box body, 3a ... Opening part (1st opening part), 4 ... Supply reel, 5 ... Winding reel, 10 ... Magnetic recording and / or reproducing device, 11 ... Chassis base, 12
... rotating drum, 15 ... slide deck assembly, 23 ... take-up roller, 28 ... supply reel stand, 29 ... take-up reel stand, 30 ... brake lever, 30a ... braking part (gear part), 30b ... contact part, 30c ... Abutted portion (folded portion), 31a ... Brake lever rotating shaft (stud),
31b ... Rotating shaft (stud) of sliding lever, 33
... sliding lever, 33a ... contact portion, 33b ... engaged portion (Z groove), 40 ... first loading base, 41 ... first tape guide member (supply side upper regulation guide roller), 4
2 ... 2nd loading base, 43 ... 2nd tape guide member (winding side upper regulation guide roller), 44 ... 3rd loading base, 45 ... 3rd tape guide member (winding side lower regulation guide roller) ), 23, 34, 41, 43, 45 ...
Tape loading component, 50 ... Motor (loading motor), 51 ... Motor reduction mechanism (gear box), 53 ... Cam body (control cam gear), 57 ...
Fixing member (stud), 60 ... Arm member (arm gear), 60c ... Engaging portion (pin), T ... Magnetic tape.

Claims (1)

[Claims] 1. A magnetic tape wound around a supply reel inside a box is hung along a front surface of the box and wound around a take-up reel, and between the supply reel and the take-up reel. A tape cassette having an opening into which a tape-loading component on the device side is inserted is formed along the front surface of the box body, and is mounted on a slide deck assembly equipped with a supply reel base and a take-up reel base and moving on a chassis base. Moving the slide deck assembly integrally with the tape cassette in the direction of the rotating drum to cause the rotating drum to bite into the opening, and moving the tape loading component from the opening to the outside of the box. Then, the magnetic tape is pulled out toward the rotating drum, and the magnetic tape is spirally attached to the rotating drum at a predetermined angle to record and / or reproduce. A recording and / or reproducing apparatus, comprising: a cam body that is rotated at a reduced speed by a motor for moving the tape loading component and the slide deck assembly; An engaging portion is formed at the other end through the shaft, and a slide lever that is rotatably supported by the slide deck assembly is rotated in cooperation with the rotation of the cam body. An arm member that has an engaging portion that engages with an engaged portion of a lever and that moves the slide deck assembly in the direction of the rotating drum, and at the same time moves the tape loading component member in the direction of pulling out the magnetic tape; An abutting part is formed at one end for contacting with and separating from a fixing member fixed to the chassis base, and a braking part for braking the supply reel base and an abutting member for the sliding lever are formed at the other end via a rotating shaft. And a brake lever that is rotatably supported by the slide deck assembly. The brake is provided when the tape cassette is placed on the slide deck assembly. The contact portion of the lever contacts the fixing member to bring the brake lever into the non-braking state, and the contact portion of the brake lever is separated from the fixing member by the movement of the slide deck assembly in the direction of the rotating drum. To bring the brake lever into a braking state, and at the movement end position of the slide deck assembly in the direction of the rotating drum, the contact portion of the slide lever comes into contact with the contacted portion of the brake lever to move the brake lever. A magnetic recording and / or reproducing apparatus, which is configured to be in a non-braking state.