JP2584968B2 - Cassette mounting device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cassette mounting device of a recording / reproducing device using a tape cassette (hereinafter abbreviated as a cassette).

(Prior Art) In recent years, the use of cassette-based recording / reproducing devices has tended to be increasingly widespread due to the miniaturization of cassettes and the like. Particularly, cassette mounting devices are often used when a user touches the recording / reproducing device. Since it is used as the most basic operation, the usability and reliability of the cassette mounting device are:
This is very important for the entire recording / reproducing apparatus.

An example of a conventional cassette mounting device will be described with reference to FIGS. 4 and 5. FIG. FIG. 4 is a front view of an example of a conventional cassette mounting device, and FIG. 5 is a plan view of the mounting device. The first link 1 is attached to the cassette holder 2 so that one end is rotatable, and is attached to the cassette stand 3 so that the other end is freely rotatable via the fulcrum 1a. Since the tension spring 4 is hung on the spring hook 1b at the other end of the first link 1, a clockwise rotational force is urged about the fulcrum 1a. Second link 5
Is mounted on the cassette holder 2 such that one end is rotatable, and the other end is configured so that the support shaft 5a moves along a guide groove 3a provided in the cassette stand 3.
The cassette holder 2 has a round hole 2a and a notch 2b for connecting the recording medium inside the cassette to the device, and a notch 2c for taking out the cassette. The outer shape of the cassette 6 is indicated by a two-dot chain line. In addition, the first link 1, the second link 5, the cassette stand 3, the tension spring 4
Is shown on only one side of the cassette, but in fact, the other side of the cassette is provided with a substantially identical shape. In the figure, reference numeral 7 denotes a part of the exterior.

In the above configuration, when the cassette is moved from the position shown in FIG. 4 to a position where the cassette can be taken out and inserted, the first link 1 urged clockwise by the tension spring 4 resists the force of the tension spring 4. Counterclockwise, the support shaft 5a of the second link 5 slides in the guide groove 3a of the cassette stand 3, the cassette holder 2 is locked by a lock member (not shown), and the cassette 6 is substantially horizontal. To the second position held at

(Problems to be Solved by the Invention) In the above configuration, the basic solution is to increase the elevating stroke of the cassette holder in order to make it easier to take out the cassette. Since the torsion of the cassette holder at the time of locking is increased due to the need for a spring, the size of the apparatus is inevitably increased in order to strengthen the cassette holder, and the load when the cassette holder is pressed down by hand is reduced. There was a problem of becoming large.

(Means for Solving the Problems) In order to solve the above problems, the cassette mounting device of the present invention moves the cassette holder holding the cassette from the first position where the cassette can be taken out from the first position. In the cassette mounting device which is located below the position and moves to the second position where the cassette is mounted on the recording / reproducing device, the cassette holder is moved up and down within the range from the first position to the second position. A link mechanism that is rotatably supported by the cassette holder and engages with a link in the link mechanism, and is linked with the rise of the cassette holder from the second position to the first position by the link mechanism. Moving means for abutting the cassette and lifting the side surface of the cassette from the inside of the cassette holder.

(Operation) According to the above configuration, when the cassette holder is at the first position at which the cassette can be taken out, the cassette can be easily taken out because the moving means lifts the end face of the cassette taken out from the inside of the cassette holder. Held in position.

(Embodiment) An embodiment of a cassette mounting apparatus according to the present invention will be described with reference to FIGS. FIG. 1 is a side view showing a state where a cassette is completely mounted on a cassette mounting apparatus according to an embodiment of the present invention, FIG. 2 is a side view showing a state where a cassette is removed from the cassette mounting apparatus, and FIG. FIG. 2 shows a plan view of the mounting device.

With the cassette 6 floating from the cassette holder 2,
It is held by a cassette post (not shown) implanted in a chassis (not shown) or the like. Cassette holder 2
Are bent portions 2d and 2e for attaching elastic members (not shown) such as leaf springs provided so as to press the cassette 6 downward in FIG. 1, and positioning for positioning when the cassette 6 is inserted. It has a bent portion 2f, a fulcrum 2g that rotatably supports one end of the sub-link 8, and an oval guide groove 2h for sliding a support shaft 9a of the main link 9. The cassette stand 3 holds a fulcrum 9b, which is the center of rotation of the main link 9, and has a tension spring between the guide groove 3a for guiding the support shaft 8a of the sub-link 8 and the spring hook 8b of the sub-link 8. 4 has a spring hook 3b for hooking, and a bent portion 3c for attaching to a chassis (not shown). The main link 9 is rotatable about a fulcrum 9b,
9a is held by the guide groove 2h of the cassette holder 2.
The sub-link 8 is rotatable together with the main link at a fulcrum 8c, and the support shaft 8a is held by the guide groove 3a of the cassette stand 3. A holder lever 10 as a moving means for the cassette 6 is held by the cassette holder 2 so as to be rotatable about a fulcrum 10a, and a main link 9 is inserted into a substantially square hole 10b at one end of the holder lever 10. When the support shaft 9a is engaged, the holder lever 10 is moved, and the cassette abutting portion 10c enters the inside of the cassette holder 2 to push up the cassette 6.

In FIG. 1, the cassette holder 2 is locked at a predetermined position by a lock member (not shown). The cassette 6 is held by a cassette post (not shown) on the chassis, and is pressed downward by an elastic member (not shown) provided at the bent portions 2d and 2e of the cassette holder 2. The main link 9 and the sub-link 8 make the tension spring 4 fully extended as shown in the figure. In the holder lever 10, the support shaft 9a of the main link 9 contacts the right end of the square hole 10b, and the contact portion 10c of the holder lever 10 is separated from the cassette 6.

Next, when the lock member (not shown) unlocks the cassette holder 2, the main link 9 rotates counterclockwise around the fulcrum 9 b, and the sub-link 8 moves the fulcrum 2 g of the cassette holder 2. Pivot counterclockwise around the center,
The cassette holder 2 comes into contact with the cassette 6 and lifts the cassette 6 by the force of the tension spring 4. At this time, the sub-ring 8 moves the support shaft 8a to the left through the guide groove 3a of the cassette stand 3,
In the main link 9, the support shaft 9a is a guide groove of the cassette holder 2.
Move 2h left.

In the state shown in FIG. 2 by the above operation, the support shaft 9a of the main link 9 comes into contact with the left end of the square hole 10b of the holder lever 10, so that the holder lever 10 rotates clockwise about the fulcrum 10a. As the contact portion 10c contacts the cassette and rotates the cassette 6 clockwise, a gap is created between the end surface of the cassette 6 on the take-out side and the cassette holder 2, and the cassette 6 is held at a position where it can be easily taken out. .

Although the main link, the sub link, the cassette stand, and the holder lever are shown only on one side of the cassette, actually, the opposite side of the cassette has substantially the same shape.

(Effects of the Invention) According to the cassette mounting device of the present invention, the cassette holder is rotatably supported by the cassette holder and engages with the link in the link mechanism, and the cassette holder is moved from the second position to the first position by the link mechanism. Moving means for contacting the cassette in conjunction with the ascending to the position and lifting up the side surface of the cassette at the side of taking out the cassette from the inside of the cassette holder, so that the cassette holder can take out the cassette. When the cassette is at the position 1, the moving means raises the end face of the cassette on the take-out side from the inside of the cassette holder. For this reason, the operation of taking out / inserting the cassette into / from the cassette holder becomes extremely easy, and further, the position between the first position where the cassette can be taken out and the second position where the cassette is mounted on the recording / reproducing apparatus. Since the movable stroke can be reduced, it is easy to reduce the size and weight of the apparatus, and there is a large practical advantage that the notch formed in the cassette holder for taking out the cassette can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view showing a state where a cassette is completely mounted on a cassette mounting apparatus according to an embodiment of the present invention, FIG. 2 is a side view showing a state where a cassette is removed from the cassette mounting apparatus, and FIG. FIG. 4 is a front view of an example of a conventional cassette mounting device, and FIG. 5 is a plan view of the mounting device. 1... First link, 1a... Fulcrum, 1b.
2. Cassette holder, 2a Round hole, 2b, 2c Notch, 2d, 2e, 2f Bend, 2g Support point, 2h Guide groove, 3 ... Cassette stand, 3a Guide groove, 3b ……
Spring hook, 4 ... Tension spring, 5 ... Second link, 5a
... Support shaft, 6 Cassette, 7 Exterior, 8 Sublink, 8a Support shaft, 8b Spring hook, 8c Support point, 9
… Main link, 9a… Support shaft, 9b… Support point, 10… Holder lever, 10a… Support point, 10b… Square hole, 10c… Contact part.

Claims (1)

(57) [Claims] A cassette holder for holding a cassette is located below a first position from which a cassette can be taken out and below the first position, and a second holder for mounting the cassette on a recording / reproducing apparatus. A cassette mounting device for moving the cassette holder up and down in a range from the first position to the second position; and a link mechanism rotatably supported by the cassette holder. The cassette engages with the link, abuts on the cassette in conjunction with the rise of the cassette holder from the second position to the first position by the link mechanism, and lifts the side surface on the take-out side of the cassette from the inside of the cassette holder. A cassette mounting device, comprising: moving means.