JP2503673Y2 - Magnetic recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A Field of Industrial Application The present invention relates to a magnetic recording / reproducing apparatus, and can be applied to, for example, a digital audio tape recorder.

B Outline of the Invention In the magnetic recording / reproducing apparatus according to the present invention, the movable piece is rotated immediately before the cassette is loaded, and the tip of the movable piece is moved in the space between the rotary drum and the cassette to thereby rotate the rotary drum. You can surely load the magnetic tape by shaking it off.

C Conventional Technology Conventionally, there is a magnetic recording / reproducing apparatus that converts an audio signal into a digital signal and sequentially records it diagonally on a magnetic tape (hereinafter referred to as a digital audio tape recorder).

D Problem to be solved by the invention By the way, if this type of digital audio tape recorder can be miniaturized and driven by battery, it is possible to enjoy the music by carrying the digital audio tape recorder. It is thought that usability can be improved.

In this case, if the loading mechanism of the magnetic tape is downsized, the overall shape can be downsized accordingly.

However, if the loading mechanism is downsized, the magnetic tape may not be loaded reliably.

That is, in the magnetic tape of the digital audio tape recorder, the magnetic tape is stored and stored in the tape cassette so that the magnetic tape is not exposed.

Therefore, in this type of digital audio tape recorder, when loading the tape cassette, after opening and closing the lid on the front of the tape cassette to expose the magnetic tape,
The magnetic tape is pulled out from the tape cassette by a loading mechanism and wound around a rotary drum.

On the other hand, the magnetic tape may be sucked toward the lid side of the tape cassette due to moisture, static electricity or the like, and may be pulled out together when the lid of the tape cassette is opened.

Therefore, in the digital audio tape recorder, if the loading mechanism is downsized, the magnetic tape that is pulled out may run onto the rotating drum.
Then, when the loading mechanism pulls out the magnetic tape, the magnetic tape may be entangled with the loading mechanism, the rotating drum, etc., and eventually the normal loading may not be possible.

The present invention has been made in consideration of the above points, and an object thereof is to propose a small-sized magnetic recording / reproducing apparatus capable of reliably loading a magnetic tape.

E Means for Solving the Problems In order to solve the above problems, the present invention has a holder 22 having a rotating portion 24 that rotates about a predetermined rotation axis with respect to the main body. In the magnetic recording / reproducing apparatus 1 in which the cassette accommodated in the holder 22 is loaded in a predetermined position of the main body by moving the cassette to a predetermined position, the tip 72A is rotated about a predetermined rotation axis, and the tip 72A is rotated.
2 and the movable piece 72 that moves in the space between the cassette and the holder 2
A motion transmitting member (60, 64, 66, 68, 70) for bending the rotary motion of the second rotary unit (24) and transmitting it to the movable piece (72) and rotating the movable piece (72) immediately before the cassette is loaded. To

F action The rotational movement of the rotational portion 24 is bent and transmitted to the movable piece 72,
Immediately before the cassette is loaded, the movable piece 72 is moved to move the tip 72.
If A is moved in the space between the rotary drum 62 and the cassette, the magnetic tape riding on the rotary drum 62 can be shaken off and the loading can be surely performed.

G Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a digital audio tape recorder, which can be driven by a battery connected to the rear surface.

This makes Digital Audio Tape Recorder 1
Is designed so that you can enjoy music and so on by carrying it in a place where you cannot get power.

Further, the digital audio tape recorder 1 is provided with operators 2A to 2G for ejecting, reproducing, recording, fast-forwarding, rewinding, etc. at the front of the upper surface, and a power switch 4, an earphone jack 6, a volume control and a recording level on the front. The operators 8 and 10 for adjustment are arranged.

This makes Digital Audio Tape Recorder 1
Are arranged such that operators that are frequently used are intensively arranged on the front part and the front part of the upper surface.

That is, Digital Audio Tape Recorder 1
Input and recording mode switching switches 12 and 14 which are relatively infrequently used are arranged on the side surface together with the microphone input terminal 16 and the like.

As a result, the digital audio tape recorder 1 is downsized, and the area in which the manipulators and the like, which are reduced in size, can be effectively used, and the deterioration of operability can be effectively avoided.

The top of Digital Audio Tape Recorder 1 has a lid
Covered with 20, by pressing the discharge operator 2A,
The lid 20 is designed to open.

That is, the lid 20 includes the screw holes 22A and 22B of the cassette holder 22.
The cassette holder 22 is screwed to and is rotated as shown by an arrow a in conjunction with the rotating operation of the cassette holder 22.

The cassette holder 22 is formed by screwing an upper plate 26 to a lower plate 24 having a U-shaped cross section with screws 26A and 26B.
By storing the tape cassette in a rectangular area surrounded by 26 and rotating the tape cassette, the tape cassette is loaded at a predetermined position.

At this time, the cassette holder 22 presses the tape cassette to the lower plate 24 side by the cassette pressing members 28A and 28B provided on both sides of the upper plate 26 and the cassette pressing member 44 provided at the center back of the upper plate 26. Thus, the tape cassette is held in a predetermined position.

A display panel 47 is disposed between the cassette holder 22 and the lid 20, and the lid 20 has a window 48 corresponding to the display panel 47 and covered with a transparent member 49 from the back surface.

This allows the user to visually check the display panel 47 through the window 48 and confirm the operation mode of the digital audio tape recorder 1 and the remaining tape amount of the tape cassette 40.

As shown in FIG. 2, the cassette holder 22 is configured such that the rear portions of both side surfaces of the bottom plate 24 are extended and can be rotated about a rotation shaft formed at the root portion thereof.

That is, Digital Audio Tape Recorder 1
The base 52 is housed in the case 50, and the rotating drum and the like are mounted on the base 52.

Further, the base 52 supports the supporting member 54 on both side surfaces so as to stand upright, and the rear surface portion of the supporting member 54 pivotally supports the rear end portion of the bottom plate 24.

As a result, the cassette holder 22 is rotatably supported by the main body of the digital audio tape recorder 1 as shown by the arrow b.

Further, in the shaft supporting portion, the coil spring 56
As a result, the cassette holder 22 is urged in the direction of opening from the main body of the digital audio tape recorder 1, and when the ejector 2A is pressed to release the stopper (not shown), the cassette holder 22 is removed. The tape cassette can be rotated to load or eject the tape cassette.

Further, in the vicinity of the shaft supporting portion of the base 52, the support member 58 is screwed inside the bottom plate 26 so as to face the support member 54.
It is screwed by 58A and 58B, and the stopper 58C provided on the upper portion of the support member 58 limits the amount of rotation of the cassette holder 22.

A pin 60 is erected inside the vicinity of the pivotal support portion of the bottom plate 26, so that when the cassette holder 22 rotates, the pin 60 moves vertically as indicated by arrow c. Has been done.

On the other hand, a screw hole 58D is formed in the upper portion of the support member 58, and the sweeper mechanism 61 is arranged above the rotary drum 62 through the screw hole 58D as shown in FIG. ing.

That is, the sweeper mechanism 61 is held by the support member 58 via the screw holes 63A and 63B provided at both ends of the plate-shaped holding member 63.

The holding member 63 is cut and raised on a part of the left end face to stand upright, and the rotating member 64 is provided on the upright portion.
Is designed to be pivotally supported.

Here, the rotating member 64 is L-shaped, and one end thereof is pivotally supported by the holding member 63 by the rotating shaft A, while the pin 60 presses the L-shaped base portion. .

As a result, when the cassette holder 22 descends and the pin 60 moves downward as shown by the arrow d, the tip of the turning member 64 on the side opposite to the shaft support portion turns as shown by the arrow e.
It is designed to be pressed.

At this time, the pin 60 is configured to press the rotating member 64 immediately before the cassette holder 22 is lowered and becomes immovable.
In response to this, the rotating member 64 presses the rotating member 66.

The rotating member 66 is pivotally supported on the lower surface side of the holding member 63, and as a result, can rotate in parallel with the base 52 about the rotating shaft B as shown by an arrow f.

Further, the rotating member 66 is urged toward the pin 60 side by the coil spring 68, and the rotating member 64 urges the coil spring 68 to the extended portion formed so as to face the rotating member 64. It is designed to press in the opposite direction.

As a result, when the cassette holder 22 is lowered and the pin 60 is moved downward, the rotating member 66 is pressed as indicated by an arrow g immediately before the cassette holder 22 is lowered and cannot move, and is indicated by an arrow f. To rotate.

On the other hand, when the cassette holder 22 rises, the rotating member 66 is returned to its original position by the biasing force of the coil spring 68.

Further, the rotating member 66 is configured such that one end of a partially bent connecting rod 70 is connected to the tip end on the coil spring side, and the other end of the connecting rod 70 is connected to the rotating member 72. There is.

As a result, when the cassette holder 22 is lowered and the pin 60 is moved downward, the connecting rod 70 is pressed in the direction indicated by the arrow h immediately before the movement is stopped, while the cassette holder 22 is pressed.
When is raised, the coil spring 68 urges it to return to its original position.

The rotating member 72 has a disk shape with a part of the outer circumference extending in the radial direction, and is made of a polycarbonate plate material.

Further, the rotating member 72 is arranged on the rotary drum 62 side of the holding member 63, and is pivotally supported at a position where the center of the rotary member 72 is moved backward by a predetermined distance from above the rotary drum.

Further, the rotating member 72 is connected to the connecting rod 70 at a position eccentric to the back side.
When the cassette holder 22 descends and the pin 60 moves downward, the cassette holder 22 rotates in the direction indicated by the arrow i immediately before the movement of the cassette holder 22 stops, whereas the cassette holder 22 moves. Coil spring
It is designed to return to its original position by the urging force of 68.

On the other hand, in the extended portion of the rotating member 72, the tip 72A is bent toward the base 52 side, the cassette holder 22 descends, and when the rotating member 72 rotates in the direction indicated by the arrow i, the cassette holder 22 moves. Immediately before stopping, the tip 72A moves from the right to the left around the rotary drum 62 as shown in FIG.

On the other hand, when the cassette holder 22 moves up, the biasing force of the coil spring 68 causes it to return to its original position.

When the magnetic tape 74 rides on the rotating drum 72 by this, the magnetic tape 74 riding on the rotating drum 72 is shaken off by the movement of the tip 72A before the loading operation immediately before the cassette holder 22 stops moving. Then, the magnetic tape 74 can be returned to the normal position.

Therefore, even if the loading mechanism is downsized, the magnetic tape 74 can be reliably loaded.

Thus, in this embodiment, the rotating member 72 rotates about a predetermined rotating shaft, and the tip of the rotating member 72 forms a movable piece that moves in the space between the rotating drum 62 and the cassette. The rotating members 64, 66, the coil spring 68, and the connecting rod 70 bend the rotating movement of the rotating portion 26 of the holder 22 and transmit the bending movement to the movable piece 72, and immediately before the cassette is loaded, the movable piece is moved.
A motion transmitting member for rotating 72 is configured.

According to the above configuration, the rotating member 72 is rotated immediately before the tape cassette is loaded, so that the rotating member is rotated.
Magnetic tape 74 mounted on the rotating drum 62 at the tip 72A of 72
Can be shaken off, and even if the loading mechanism is downsized, it can be loaded reliably.

Therefore, the digital audio tape recorder can be downsized accordingly.

In the above embodiment, the pin 60, the rotating member 64,
66, the coil spring 68, and the connecting rod 70 have been described as forming a motion transmitting member that bends the rotational movement of the holder at a right angle, but the present invention is not limited to this, and various motion transmitting such as when using a cam is performed. The member can be widely applied.

Further, in the above-described embodiment, the case where the lid 20 and the holder 22 rotate has been described, but the present invention is not limited to this, and can be widely applied to, for example, moving up and down.

In this case, the turning motion of the turning part associated with the vertical movement of the holder may be bent at a right angle and transmitted to the turning member 72.

Further, in the above-mentioned embodiment, the case where the present invention is applied to the portable digital audio tape recorder has been described, but the present invention is not limited to this, and can be applied to a stationary digital audio tape recorder, and further to a digital audio tape recorder. Not limited to this, it can be widely applied to a magnetic recording / reproducing apparatus for recording / reproducing various signals such as an audio signal and a digital signal on a magnetic tape stored in a cassette tape.

H Effect of the Invention As described above, according to the present invention, the rotary motion of the holder is bent at a right angle through the motion transmitting member, and the rotary member is rotated to ride on the rotary drum immediately before the cassette is loaded. By shaking off the magnetic tape, it is possible to obtain a small-sized magnetic recording / reproducing apparatus capable of surely loading even if the loading mechanism is downsized.

[Brief description of drawings]

FIG. 1 is a perspective view showing a digital audio tape recorder according to an embodiment of the present invention, FIG. 2 is a perspective view showing a detailed structure of the cassette holder, FIG. 3 is a perspective view showing a sweeper mechanism, and FIG. FIG. 6 is a schematic diagram for explaining the operation. 1 …… Digital audio tape recorder, 20 ……
Lid, 22 ... cassette holder, 56, 68 ... coil spring, 60 ... pin, 62 ... rotating drum, 64, 66, 72 ... rotating member, 70 ... connecting rod, 74 ... magnetic tape.

Claims (1)

(57) [Scope of utility model registration request] 1. A cassette having a rotating portion which rotates about a predetermined rotating shaft with respect to a main body, and by moving the holder to a predetermined position, the cassette accommodated in the holder is moved. In a magnetic recording / reproducing apparatus which is loaded in a predetermined position of the main body, a movable piece whose tip moves in a space between a rotary drum and the cassette by rotating about a predetermined rotation axis, and the holder of the rotary member. A magnetic recording / reproducing apparatus, comprising: a motion transmitting member that bends and transmits the rotational movement of the moving part to the movable piece and rotates the movable piece immediately before the cassette is loaded.