JP3417203B2 - Cassette mounting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette mounting apparatus equipped in a recording / reproducing apparatus for driving recording / reproducing media contained in cassettes of different sizes.

[0002]

2. Description of the Related Art In recent years, there has been a movement to standardize and use a plurality of cassettes of different sizes in order to incorporate a recording / reproducing medium of an amount optimized by a required recording capacity.

As a method of utilizing the cassettes of different sizes, the cassettes of the respective sizes are used by being mounted in a recording / reproducing apparatus.

The recording / reproducing mechanism for driving the recording / reproducing medium contained in the cassettes of different sizes is mounted with the state of the recording / reproducing mechanism such as the position of the reel stand before the cassette is mounted on the recording / reproducing mechanism. It needs to be changed according to the size of the cassette.

Conventionally, an operator who mounts such a cassette on the recording / reproducing apparatus must specify the size of the cassette to be mounted on the recording / reproducing apparatus before mounting the cassette.

[0006]

However, it is complicated for the operator to instruct the recording / reproducing apparatus the size of the cassette to be mounted before mounting the cassette on the recording / reproducing apparatus.

An object of the present invention is to eliminate the need for the operator to specify the size of the cassette to be mounted before mounting the cassette.

[0008]

In order to solve the above-mentioned problems, the cassette mounting apparatus of the present invention has cassettes of different sizes.
Mount one of the trays and attach it to the recording / playback mechanism.
The tray and the size of the installed cassette
The detection lever changes the position setting according to the detected size.
The rack supporting the tray, the tray and the rack
Move between cassette loading position and cassette loading position
A drive lever and a detection lever that is rotatably supported on the rack.
Rotation is restricted according to the position setting of the
An arm with a pin and an arm that engages the pin of the arm
Is a groove that restricts the movement and rotation of the tray and the tray is
Detection lever while moving from the cassette mounting position to the cassette mounting position
Depending on the position setting of the branch, the branch branches so that the pins reach different branches.
The side plate with the groove that is
Moves the recording / playback mechanism by connecting with a pin that moves along
That a slider, characterized in Rukoto. Alternatively,
While supporting the tray to the rack via the cam rack,
Place the center of rotation of the arm on the cam rack and place the cassette
The tray according to the movement from the position to the cassette loading position.
It is characterized in that it is configured to move up and down. Ie
Groove is moving from cassette loading position to cassette loading position
Depending on the position setting of the detection lever, it will reach a crossing with different pins
In this way, the detection level is
The bar mechanically determines the size of the cassette and
A cassette that outputs to the recording / reproducing mechanism as a difference in the operation path of the pin.
A cassette loading device with a
It is what is done.

[0009]

[0010]

DETAILED DESCRIPTION OF THE INVENTION

Embodiments of the present invention will be described below with reference to FIGS. 1 to 4 for discriminating between large and small cassettes.

FIG. 1 is an exploded perspective view showing the construction of a cassette size discriminating section according to the present invention. A detection lever 1, a selection plate 2 as an arm, and a spring 4 as an urging means are mounted on a rack 10, and a spring 4 is selected. The plate 2 and the detection lever 1 are biased. The rack 10 supports the tray 7 on which the cassette is mounted, is supported by the guide roller 14 provided on the side plate 11 and the guide groove 15 formed in the rack 10, and horizontally operates by the pinion 12. The groove 5 regulates the locus of the pin 3 provided on the side plate 11 and provided on the selection plate 2. Side plate 1
1 is fixed relative to the recording / reproducing apparatus. The slider 6 switches the recording / reproducing mechanism 13 to a state adapted to the size of the cassette to be mounted.

FIG. 2 is a schematic view of a cassette mounting apparatus of the present invention in which two sizes of cassettes are mounted. When a large size cassette 8 (shown by a chain line) is mounted, the detection lever 1 rotates. Although not possible, the cassette mounting position is provided by the tray 7 and the detection lever 1 so that the detection lever 1 can be rotated when a small size cassette 9 (illustrated by a chain double-dashed line) is mounted. ing.

FIG. 3 is a schematic view showing the movement when a large-sized cassette 8 is mounted, and FIGS.
It operates in the order of (b) and FIG. 3 (c).

FIG. 3A shows a state in which the tray 7 is pulled out to mount the cassette and a large size cassette 8 is mounted. The selection plate 2 is shown in FIG.
Although it is biased counterclockwise, it is restricted to the position shown in FIG. 3A by the pin 3 and the groove 5 provided on the selection plate 2.

Next, the mounting of the cassette starts, the tray 7 is pulled in, and the size of the cassette is discriminated at the position shown in FIG. 3 (b). Although the groove 5 that regulates the rotation of the selection plate 2 via the pin 3 branches off and does not regulate the rotation of the selection plate 2, the rotation of the selection plate 2 is regulated by the large-sized cassette 8. The rotation is stopped by the detection lever 1, and the state is passed without rotating.

After passing through FIG. 3 (b), the selection plate 2 is again restricted in rotation by the groove 5 via the pin 3 and the pin 3 is moved to the state of FIG. 3 (c) where the drawing of the tray 7 is completed. It operates along the groove above the branched groove 5.

FIG. 4 is a schematic view showing the operation when a small-sized cassette 9 is mounted, and FIGS.
It operates in the order of (b) and FIG. 4 (c).

FIG. 4A shows a state in which the tray 7 is pulled out to mount the cassette and the small size cassette 9 is mounted. In this state, the selection plate 2 is shown in FIG.
Similarly, is supported by the groove 5 via the pin 3.

The mounting of the cassette starts, the tray 7 is pulled in, and the size of the cassette is discriminated at the position shown in FIG. 4 (b). The groove 5 that regulates the rotation of the selection plate 2 via the pin 3 branches off and does not regulate the rotation of the selection plate 2, and the rotation of the detection lever 1 is regulated by the cassette 9 having a smaller size. Selection plate 2 because there is nothing to do
Rotates according to the bias of the spring 4, and the pin 3 moves along the groove below the branched groove 5.

As an output of the cassette size determined in FIG. 4 (b), the pin 3 provided on the selection plate 2 operates along the groove below the groove 5 to the state of FIG. 4 (c).

In this embodiment, the pin 3 is connected to the slider 6 along the groove below the groove 5, and the slider 6 is formed as shown in FIG.
By operating from the state of (b) to the state of FIG. 4 (c), the recording / reproducing mechanism 13 shifts from the state of mounting the large-sized cassette 8 to the state of mounting the small-sized cassette 9.

As described above, it is possible to realize a cassette loading device having a cassette size determination function capable of determining the size of the loaded cassette and outputting the result to the outside.

As another embodiment, as shown in FIG. 5, the same effect can be obtained by equipping the cam rack 16 for raising and lowering the cassette on the recording / reproducing mechanism 13 with the selection plate 2 and the spring 4. In both of the above-mentioned embodiments, the so-called front loading method in which the cassette moves in the horizontal direction has been described, but it goes without saying that the present invention is not limited to this.

By changing the branching shape of the groove, the determination timing can be freely set within the cassette mounting operation, and the spring urging directions of the selection plate and the detection lever can be changed, or the slider can be moved. It is also possible to discriminate a large-sized cassette by changing the shape of, and it is also possible to detect two or more types of cassette sizes. Furthermore, an example is illustrated in which the slider is fitted to the pin so that the slider adjusts the recording / reproducing mechanism to the size of the cassette. By providing the cassette size detection result, it is possible to electrically output the detection result of the cassette size to the control means for controlling the recording / reproducing mechanism and the recording / reproducing apparatus.

Further, although the embodiment in which the spring is used as the urging means has been illustrated, the present invention is not limited to this.

[0026]

As described above, according to the present invention, the size of the cassette placed on the tray is automatically discriminated by the time the recording / reproducing mechanism is mounted, and the result is stored in the recording / reproducing mechanism and its control means. It is possible to realize a cassette mounting device having a cassette size determination function capable of outputting.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing the configuration of an embodiment of a cassette mounting device of the present invention.

FIG. 2 is a diagram showing the arrangement of the tray and the detection lever and the mounting position of the cassette.

FIG. 3A is a schematic diagram showing a state in which a large-sized cassette is mounted and the tray is pulled out; FIG. 3B is a schematic diagram showing a state in which a large-sized cassette is mounted and the size of the cassette is determined. FIG. 6C is a schematic diagram showing a state in which a large-sized cassette is mounted and the tray is completely pulled in.

FIG. 4A is a schematic diagram showing a state where a small size cassette is mounted and the tray is pulled out. FIG. 4B is a schematic diagram showing a state where a small size cassette is mounted and the size of the cassette is determined. FIG. 6 (c) is a schematic diagram showing a state in which a small-sized cassette is mounted and the tray is completely retracted.

FIG. 5 is an exploded perspective view showing the configuration of another embodiment of the present invention.

[Explanation of symbols]

1 Detection lever 2 Selection board 3 pin 4 springs 5 grooves 6 slider 7 trays 8 large size cassettes 9 small size cassettes 10 racks 11 side plate 12 pinion 13 Recording / playback mechanism 14 Guide roller 15 Guide groove 16 cam rack

Claims (2)

(57) [Claims] 1. A cassette of different sizes
A tray for placing or mounting a card on the recording / playback mechanism,
Detects the size of the installed cassette and detects the size
The tray and the detection lever that changes the position setting according to
A rack to support, and the tray and rack to be mounted on a cassette.
Drive mechanism that moves between the placement position and the cassette mounting position
And the detection lever rotatably supported by the rack.
Rotation is restricted according to the position setting of the
The arm with the pin and the
A groove for restricting the movement and rotation of the arm, and
Tray moves from cassette loading position to cassette loading position
The pin differs depending on the position setting of the detection lever
A side plate having a groove that branches to reach a crossroad;
The pin that moves along one of the grooves on one side plate that branches off
And a slider for moving the recording / reproducing mechanism in combination with
Cassette loading apparatus comprising: a. 2. The tray is attached to the tray via a cam rack.
And the center of rotation of the arm is supported by the cover.
Installed on the cassette, from the cassette loading position
To raise and lower the tray as it moves between positions
The cassette mounting device according to claim 1, which is configured .