JPH04147458A - Cassette loading mechanism - Google Patents

Abstract

PURPOSE:To allow a cassette to be easily ejected, to attain simple structure and cleaning of a magnetic head and adjustment of azimuth by devising the mechanism such that a horizontal moving stroke of a cassette receiving plate is larger than a horizontal moving stroke of a tray. CONSTITUTION:A tape playing mechanism 1 is fixed by a right base 2 and a left base 3 and a guide is provided to the right base 2 and the left base 3 to move a tray 4 in the horizontal direction only. One end 6a of a cassette receiving plate 6 is engaged with a slot 4a of the tray 4 and the other end 6b is inserted to a hole 7a of a slide plate 7 and the plate 6 is supported freely turnably. The slide plate 7 is guided in a long hole 7b with a projection 4b of the tray 4 and movable in the horizontal direction in the tray 7. A hole 8a of a link lever 8 is contains a shaft 4c of the tray 4 to allow the shaft 4c to be turned freely. Since a horizontal moving stroke of the cassette receiving plate 6 is increased by the link lever 8, a cassette tape 5 is placed to the tray 4 while locating the magnetic tape face this side to allow the cassette to be easily ejected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a tray-type loading mechanism for compact cassettes.

BACKGROUND OF THE INVENTION Conventionally, most cassette loading mechanisms of this type have involved loading and unloading the tape playing mechanism itself. In the system in which the cassette is placed on a tray, space is required for the magnetic head on the magnetic tape side of the cassette as a tape playing mechanism, so the magnetic tape surface of the cassette is located at the back of the cassette from the cassette mounting position.

FIG. 7 and FIG. 8 are plan views showing this in a simplified manner. FIG. 7 shows the cassette attachment/detachment position, and FIG. 8 shows the attachment position. 17 is a casing and shows the loading arrangement. Since the tape playing mechanism 1 has a space for the magnetic head 15, in order to reduce the movement stroke of the tray, the magnetic head side must be placed at the back as shown in the figure. As a result, the cassette 5 placed on the tray 4 must also be placed with the magnetic tape surface at the back.

Problems to be Solved by the Invention However, since conventional tape recorders use cassette tapes with the magnetic tape side facing down, labels and tape running directions are also displayed with the magnetic tape side facing down. The conventional cassette loading mechanism as described above is
Since the magnetic tape surface is placed at the back, the label 18 is upside down and the display direction of the operation button 19 is also opposite to the actual running direction of the tape.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and aims to provide a cassette loading mechanism that can place a cassette tape on a tray with the magnetic tape surface facing toward you.

Furthermore, since the cassette is placed in the recessed portion of the tray, the cassette sinks and is difficult to take out.

Furthermore, the cassette cannot be attached to the tape playing mechanism unless it is moved not only horizontally but also vertically, so if it were to be moved in parallel, the mechanism would be quite complicated.

Also, if the tape playing mechanism is located at the back, cleaning the magnetic head and adjusting the azimuth cannot be done without disassembling it.

Furthermore, when the cassette is installed, the tape becomes invisible and it is impossible to check the remaining amount of tape, the label, or the front and back sides of the tape.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, an object of the present invention is to provide a cassette loading mechanism that makes it easy to take out the cassette/sort, has a simple structure, allows cleaning of the magnetic head, adjusts the azimuth, and allows the loaded cassette to be seen. It has been done.

Means for Solving the Problems In order to solve the above problems, the cassette loading mechanism of the present invention includes a tape playing mechanism, a tray that horizontally moves from a cassette attachment/detachment position to a mounting position of the tape playing mechanism, and a horizontal movement mechanism within the tray. The apparatus includes a movably guided cassette receiving plate and a coupling mechanism that engages the cassette receiving plate and the tray to relate their respective strokes.

Further, in order to solve the above problems, the cassette loading mechanism of the present invention includes a tape playing mechanism, a tray that horizontally moves from a cassette loading/unloading position to a mounting position of the tape playing mechanism, and a tray that is rotatably guided within the tray. This device includes a cassette receiving plate and a drive mechanism that controls rotation of the cassette receiving plate.

According to the above-described structure, the present invention allows a large horizontal movement stroke of the cassette receiving plate, so that the magnetic head side of the tape playing mechanism can be placed in the front, and the cassette tape can be placed on the tray with the magnetic tape surface facing the front.

Further, according to the present invention, with the above-described structure, the front side of the cassette receiving plate can be raised upward at the cassette loading/unloading position by the guide in the tray, and can be moved horizontally when the cassette is pulled in, making it easier to load/unload the cassette tape. .

Further, the present invention has a simple structure because the above-described structure allows the cassette to be mounted on the inclined tape playing mechanism by rotating the cassette receiving plate.

EXAMPLE Below, a cassette loading mechanism according to an example of the present invention will be described in detail with reference to FIGS. 1 to 6.

FIG. 1 is a side view of this embodiment, and FIG. 2 is a plan view, showing the cassette tape attachment/detachment position. Figure 1 (a) is a left side view, (b) is a state with the left base 3 and tray 4 cut away, (
C) and (d) are cross-sectional views of the main parts of the tray 4, which are excerpted in order to make it easier to understand the relationship between the internal components.

In the figure, 1 is a tape playing mechanism, which is fixed by a right base 2 and a left base 3. There are guide parts on the right base 2 and the left base 3, so that the tray 4 can be moved only in the horizontal direction. One end 6a of the cassette receiving plate 6 on which the cassette tape 5 is placed engages with the groove 4a of the tray 4, and the other end 6b
is inserted into the hole 7a of the slide plate 7 and rotatably supported. The slide plate 7 is guided by the protrusion 4b of the tray 4 in the elongated hole 7b, and is movable in the horizontal direction within the tray 7. Reference numeral 8 denotes a connecting lever, whose hole 8a is inserted into the shaft 4c of the tray 4 and is rotatable. Also, one end 8b
is engaged with the elongated hole portion 7C of the slide plate 7, and the gear portion 8C centered around the hole 8a is engaged with the rack portion 2a of the right base 2. Reference numeral 9 denotes a drive rack, which is guided by a groove in the tray 4 and is movable in the horizontal direction with respect to the tray.

The drive rack 9 has a cam portion 9a, which can engage with the convex portion 6C of the cassette receiving plate 6. In the state shown in FIG. 1, there is no engagement. 10 is a lock lever, which is connected to the shaft 4d of the tray 4.
It is rotatably attached to and biased counterclockwise by a spring 16. In FIG. 2, the lock lever 10 is locked by a part of the stopper in the tray, and one end 10a of the lock lever 10 is in the engagement position with one end 9a of the drive rack 9.
A drive rack 9 is fixed within the tray 4.

A motor 11 is fixed to the left base 3, and a pulley gear 12 and a drive gear 13 are rotatably mounted on an erected shaft. The rotational force of the motor is transmitted to the pulley gear 1 via the belt 14.
2 to the drive gear 13 and meshes with the rack portion 9C of the drive rack 9, resulting in linear movement of the drive rack 9.

The operation with the above configuration will be explained. When the cassette tape 5 is placed on the cassette receiving plate 6 and an insertion command is issued from the cassette attachment/detachment position shown in FIGS. 1 and 2, the motor 11 rotates clockwise and the drive gear 13 rotates counterclockwise. The drive rack 9 is driven to the left in the figure. As mentioned above, since the drive rack 9 is fixed within the tray by the lock lever 10, the tray 4 is also pulled to the left. Tray 4
When the tray 4 moves horizontally, the connecting lever 8 that engages with the rack portion 2a of the right base 2 rotates clockwise on the shaft 4c of the tray 4. When the connecting lever 8 rotates, the one end 8b moves the slide plate 7 further to the left. At this time, the cassette receiving plate 6, which is rotatably connected to the slide plate 7, is also guided by the groove 4a of the tray 4 and moves. The groove 4a of the tray 4 is angled upward to the right as shown in the figure, making it easy to place the cassette diagonally and take it out, but as it moves to the left, the cassette becomes horizontal and can be configured without taking up much space. .

Before the horizontal movement is completed, the lock lever 10 is
The result will be as shown in Figure 3(a). One end of loch flavor 10
0b comes into contact with the wall 3a of the left base 3, and when the tray 4d moves further to the left, it rotates clockwise against the spring 11,
The state shown in FIG. 3(b) is reached. Then, the drive rack 9 becomes
The lock lever 10 is unlocked at one end 10a and moves horizontally to the left in the figure. At this time, the tray hits another stopper and completes its horizontal movement.

FIG. 4 is a side view of the tray when horizontal movement is completed, and FIG. 5 is a state in which the cassette is mounted on the tape playing mechanism. 3(a) corresponds to FIG. 4, and FIG. 3(b) corresponds to FIG. 5. In FIG. 4, the groove 4a of the tray is in an open state, and one end 6a of the cassette receiving plate 6 is removed from the groove, allowing the cassette receiving plate 6 to rotate freely. If the drive rack 9 moves further to the left in the figure from FIG. 4, the convex portion 6c of the cassette receiving plate 6 will move along the cam portion 9a of the driving rack, and the cassette receiving plate 6 will move clockwise around the shaft portion 6b. Rotate to. The tape playing mechanism 1 is fixed diagonally to the right base 2 and the left base 3 as shown in FIG. 5, so when the cassette tape 5 and the cassette receiving plate 6 rotate, the cassette tape 5
It is attached to the tape playing mechanism 1 as shown in FIG. FIG. 6 is a plan view of the installed state.

Further, as shown in FIG. 5, since the tape playing mechanism 1 is installed at an angle, the tape cassette 5 can be easily checked by providing a window 20 on the front surface of the housing.

On the other hand, when a command is issued to eject from the mounted state, if the motor 11 rotates in the counterclockwise direction opposite to that when mounted, the fourth, third (b), (a), It sequentially moves to the state shown in FIG. 1 and reaches the cassette attachment/detachment position.

Effects of the Invention As described above, in the present invention, with the above-described configuration, the horizontal movement stroke of the cassette receiving plate can be increased by the connecting lever, so that the magnetic head of the tape playing mechanism can be placed in the front, and the magnetic tape surface can be placed in the front. You can place cassette tapes on the tray. Therefore, if you look at the placed state, the label is normal and the direction of the button matches the actual running direction of the tape.

Further, according to the present invention, with the above-described configuration, the cassette receiving plate rises when the cassette is attached or removed, making it easy to take out the cassette.

Further, according to the present invention, with the above-described configuration, the cassette receiving plate can reach the cassette mounting position simply by rotating, so the structure is simpler than that of parallel movement.

Further, according to the present invention, with the above configuration, since the tape playing mechanism is tilted, if the magnetic head is placed near the housing, cleaning and azimuth adjustment of the magnetic head can be performed from the front of the housing, and the mounted cassette can be Since it is visible, you can check the amount of tape remaining, the label, and the front and back sides.

[Brief explanation of the drawing]

Fig. 1 is a side view of the cassette loading/unloading position of the cassette loading mechanism in the first embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is a detailed view of the lock lever, and Fig. 4 is a horizontal movement of the tray. FIG. 5 is a side view of the cassette installed position, FIG. 6 is a plan view of the same, and FIGS. 7 and 8 are plan views of the conventional example. 1... Tape playing mechanism, 2... Right base, 3...
... Left base, 4... Tray, 5... Cassette tape, 6... Cassette receiving plate, 7... Slide plate, 8...
...Connection lever 9...Drive rack, 10...Lock lever 11...Motor, 12...Pulley gear, 1
3... Drive gear, 14... Belt, 15... Magnetic head, 16... Spring, 17... Housing, 18...
Label, 19...operation button. Name of agent: Patent attorney Haruaki Koebi and 2 others

Claims (6)

[Claims] (1) A tape playing mechanism, a tray that horizontally moves from a cassette loading/unloading position to a mounting position of the tape playing mechanism, a cassette receiving plate guided so as to be horizontally movable within the tray, and a cassette receiving plate and the tray that are guided to be horizontally movable within the tray. A cassette loading mechanism comprising: a connecting mechanism that engages and relates the respective strokes, and is configured such that the horizontal movement stroke of the cassette receiving plate is larger than the horizontal movement stroke of the tray. (2) The cassette loading mechanism according to claim 1, wherein the magnetic tape surface of the cassette tape is arranged on the cassette loading/unloading position side. (3) A tape playing mechanism, a tray that horizontally moves from a cassette attachment/detachment position to a mounting position of the tape playing mechanism, a cassette receiving plate movably guided within the tray, and a connection between the cassette receiving plate and the tray. and a connecting mechanism that connects the respective strokes,
A cassette loading mechanism characterized in that the front side of the cassette receiving plate rises upward at the cassette attachment/detachment position and moves horizontally when the cassette is retracted by a guide in the tray. (4) A tape playing mechanism, a tray that horizontally moves from a cassette loading/unloading position to a mounting position of the tape playing mechanism, a cassette receiving plate rotatably guided within the tray, and a cassette receiving plate that controls the rotation of the cassette receiving plate. and a drive mechanism for controlling the tape playing mechanism, which is horizontally moved by a tray and fixed according to a rotation angle of the cassette receiving plate, and the cassette is mounted on the tape playing mechanism by rotation of the cassette receiving plate. cassette loading mechanism. (5) The cassette loading mechanism according to claim 4, wherein the cassette is mounted at an angle, and the magnetic head of the tape playing mechanism is located close to the front of the casing. (6) The cassette loading mechanism according to claim (4), wherein the cassette is mounted in an inclined state so that the cassette can be seen through a window on the front surface of the housing.