JPH0323547A - Cassette loading device - Google Patents

Abstract

PURPOSE:To reduce the number of parts, to reduce the cost of production and to simplify the trouble of the production by forming an opening piece which opens a lid to its full width with the aid of bending a frame. CONSTITUTION:When a first and a second guide pins 8a and 8b are respectively moved down along a first and second guide holes 6a and 6b, a cassette 1 and a cassette holder 2 are integrally moved down. Then, the cassette 1 is loaded on a prescribed position. On the way that they are moved down, the lid 1a which abuts on a pawl part 22 and which is opened by a prescribed quantity continuously abuts on the opening piece 29. Then, it is opened to its full width. In such a way, the opening piece 29 which is formed on one side of the upper surface of the frame 4 and used for maintaining the lid 1a to be opened to its full width is bent at a right angle with respect to the movement of the horizontal direction of the cassette 1. Thus, the cost of the production is reduced and simultaneously a cassette loading device whose production is simplified is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cassette loading device equipped with a cassette holder that stores a cassette having a lid and moves between a cassette insertion position and a cassette mounting position. [Prior Art] Figures 6 to 9 are examples of conventional cassette loading devices shown in Japanese Utility Model Application Publication No. 62-57951, and in the figures, 40 indicates a cassette containing a magnetic tape; 40a is a lid biased in the closing direction by a spring (not shown) in the cassette 40; 41 is a cassette 40;
A cassette holder 43 that accommodates the cassette and moves between the cassette insertion position and the cassette loading position is biased counterclockwise by a spring (not shown) centered on a support 1142 at the bottom of the rear side of the cassette holder 41. 44 is an open bottle installed on the back side of the deck base 45, and 46 is a fixed piece provided near the open bottle 44.

In the cassette loading device constructed as described above, when the cassette 40 is inserted into the cassette holder 41,
The cassette 40 is held in a cassette holder 41 by contacting the tip of a slide lever (not shown). Thereafter, when the cassette 40 is pushed in by hand with a stronger force than when the cassette 40 was inserted, the slide lever comes into contact with a start switch (not shown), and the cassette 40 and the cassette holder 41 become one body due to the operation of the start switch. Move horizontally to the back of the deck base 45 and proceed. Then, when the lid 40a is positioned above the tip of the opener 43, the opener 43 is rotated clockwise around the support shaft 42 against the elastic force of the spring, and accordingly, the lid 40a is rotated by a predetermined amount. Released counterclockwise (see Figures 7 and 8). Thereafter, the cassette 40 and the cassette holder 41 move downward as one, and the cassette 40 is mounted in a predetermined position. During its downward movement, the lid 40a, which came into contact with the opener 43 and was released for a predetermined amount of time, continues to come into contact with the open bottle 44, and becomes fully open (see FIG. 9). Also, cassette 40
When the opener 43 is attached, the tip of the opener 43 comes into contact with the fixing piece 46, and the opener 43 is prevented from rotating. [Problems to be Solved by the Invention] In the conventional cassette loading device as described above, it is necessary to separately prepare the open bin 44 to maintain the lid 40m in the full length state, which increases the number of parts and makes it difficult to manufacture. There were problems in that the cost was high and the open bin 44 had to be attached to the deck base 45, which required more time and effort to manufacture. The present invention has been made to solve the above-mentioned problems, and aims to provide a cassette loading device that reduces manufacturing costs and simplifies manufacturing. [Means for Solving the Problems 1] The cassette 1 loading device according to the present invention has an open piece bent toward the deck base on the frame.

[Function] In this invention, when the cassette is in the cassette loading position, the lid is fully opened by the opening piece. [Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view of essential parts of a DAT (digital audio tape recorder) showing an embodiment of the present invention.
In the figure, 1 is a cassette containing magnetic tape, la
2 is a lid biased in the closing direction by a spring (not shown) inside the cassette 1; 2 is a cassette boulder 3 that accommodates the cassette 1 and moves between the cassette insertion position and the cassette loading position; is the tip of the cassette 1; 4 is a U-shaped frame provided on the outside of the slide lever 3; 5 is a slide movably attached to the lower surface of the frame 4 and stacked on the slide lever 3; Plates 6a and 6b are L-shaped first and second guide holes formed in the front side wall of the frame 4, and 6c
is a third guide hole formed at the rear side wall of the frame 4;
7 is a lever guide hole formed below the third guide hole 6c and has an open hole 28; 8a and 8b are provided to project from the front of both side walls of the cassette holder 2, respectively, and are the first and second guide holes 6a, The first and second guide bins 8c move along the openings 6b, and the third guide bin 8c projects from the rear of both open walls of the cassette holder 2 and moves along the third guide hole 6c.
This is a guide pin. 13 is an arm gear provided on both outsides of the frame 4 and rotates around a shaft 14; 15 is a play hole formed at the tip of the arm gear 13 through which the first and second guide bins 8a and 8b pass; 16 is an arm gear Arm gear 13 meshing with 13
The synchronous gear 17 that drives the synchronous gear 17 has the synchronous gear 16 fixed to both ends thereof and is engaged with the open groove 18.

Reference numeral 19 indicates an opening lever which is pivotally supported on the pivot 20 of the cassette holder 2 and has a link bin 2l and a claw portion 22; 2; 3 indicates a link hole 24 through which the link bin 21 passes and a support hole 25 through which the third guide bin 8c passes. The link lever 27 has a lever guide pin 26 formed therein and moves along the lever guide hole 7. One end presses the base end of the link lever 23, and the other end presses the base end of the link lever 23.
29 is an opening piece formed on one side of the upper surface of the frame 4 to maintain the lid 1a fully open. , this opening piece 29 is bent at right angles to the horizontal movement of the cassette 1. Next, the operation of the above elliptical DAT will be explained. In the loading operation of the cassette 1, when the cassette 1 is first inserted into the cassette holder 2, the cassette 1 comes into contact with the tip of the slide lever 3 and is held by the cassette holder 2.

At this time, the first and second guide bins 8a and 8b of the cassette holder 2 are located at the ends of the first and second guide holes 6a and 6b, respectively, and the third guide bin 8C of the cassette holder 2 is located at the ends of the first and second guide holes 6a and 6b, respectively. is the third guide hole 6C
located at the end of the And cassette holder 2
The link lever 23 connected via the third guide bin 8C is connected to the link bin 2 through the link hole 24.
1, the claw part 22 of the release lever 19 connected through the lever 1 is positioned facing downward (see Fig. 2).Then, the cassette 1 is inserted with a stronger force than when the cassette 1 was inserted.
When the slide lever 3 is pushed in by hand, the slide lever 3 comes into contact with a start switch (not shown), and the operation of the start switch causes the synchronous gear 16 to rotate, the arm gear 13 meshed with the synchronous gear 16 to rotate, and the first and second 2 guide bin 8a
, 8b are the first and second guide holes 6a, 6b, respectively.
The cassette 1 and the cassette holder 2 advance toward the back side of the frame 4 as one body.

At this time, the third guide bin 8C also moves along the third guide hole 6c, and the link lever 23 also moves toward the back of the frame 4 in conjunction with the third guide bin 8c. When the link lever 23 moves, the link lever 23 moves clockwise to the third guide pin 8C in the same direction as the biasing direction of the spring 27 due to a change in the relative position between the third guide hole 6c and the lever guide hole 7. Rotates using the axis as a pivot. Also, in conjunction with the clockwise rotation of the link lever 23, the release lever 1
9, the claw portion 22 of the release lever 19 is connected to the cassette holder 2.
The cylinder head 1a is rotated counterclockwise until it touches the end face of the cylinder, and the cylinder head 1a is opened by a predetermined amount (see Fig. 3). Thereafter, the first and second guide bins 8a and 8b move downward along the first and second guide holes 6a and 6b, respectively, so that the cassette 1 and the cassette holder 2 move downward as one. , the cassette 1 is installed in a predetermined position. During its downward movement, it comes into contact with the claw part 22 and reaches a predetermined IN7F.
The released lid 1a continues to come into contact with the opening piece 29 and is in a fully open state (see FIGS. 4 and 5).

fflL for moving cassette 1 from the installation position to the insertion position.
Now then, Kase・:/I-1. cassette holder 2,
The slide lever 3 moves in the opposite direction to that described above.
Also, during the movement of the cassette 1, the same force of the link lever 23 applied clockwise by the spring 27 is reversed.
Therefore, the link lever 23 is forcibly moved counterclockwise due to the relative positional changes with respect to the third guide bin 8c# in the third guide hole 6c and the lever guide bin 26 in the lever guide hole 7. As a result, the release lever 19 is rotated clockwise about the pivot 20, and the contact between the claw portion 22 and the lid 1a is released, and the lid 1a is rotated in the closing direction of the spring in the cassette 1. Closed by force.

In the above embodiment, a DAT was explained as a cassette loading device, but it goes without saying that the present invention can also be applied to a device using a cassette containing a magnetic disk or an optical disk, for example.

[Effects of the Invention] As explained above, in the cassette loading device of the present invention, the opening piece for fully opening the lid is formed by bending the flare A, so the number of parts is reduced compared to the conventional device. This has the effect of reducing manufacturing costs and simplifying the manufacturing process.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the main parts showing one embodiment of the present invention, Figs. 2 to 5 are side views showing various uses of the main parts of Fig. 1, and Figs. 6 to 9 are FIG. 2 is a side view of main parts showing an example of each usage mode of a conventional cassette loading device. In the figure, 1 is a cassette, 1a is a lid, 2 is a cassette holder, 4 is a frame, and 29 is an open piece. In each figure, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] In a cassette loading device provided with a cassette holder provided in a frame to store a cassette having a lid and move in an L-shape between a cassette insertion position and a cassette mounting position, the frame is bent toward the deck base side. A cassette loading device characterized in that an opening piece is formed, and the lid is fully opened by the opening piece when the cassette is at the cassette mounting position.