JPH0724137B2 - Cassette mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic tape cassette mounting device.

2. Description of the Related Art As a conventional magnetic tape cassette loading device for a video tape recorder or the like, an automatic loading device for detecting the insertion of the main part as shown in FIG. 3 and automatically loading it at a predetermined position according to the detection signal. Has been put to practical use.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in these conventional magnetic tape cassette automatic mounting devices, there is a disadvantage that the cassette may not be smoothly mounted to the cassette positioning post due to a delicate cause when the cassette is lowered. If the cassette is not completely attached and is held for a certain period of time, the pressing spring for pressing the cassette against the cassette support post yields, and it is not possible to obtain a predetermined pressing force.

Means for Solving the Problems The present invention solves the above-mentioned drawbacks of the prior art, and does not interfere with the opening and closing of the guard panel at the time of inserting the cassette and raising / lowering the cassette during normal predetermined operation and operation, while lowering the cassette Sometimes, the cassette holder is provided with a pressing member for forcibly pressing the upper surface of the cassette above the positioning post when the cassette is not smoothly attached to the positioning post.

Operation With the above configuration, even when the cassette is not smoothly mounted on the positioning post due to a mechanically delicate cause, the cassette can be forcibly pressed in the direction of the positioning post. The cassette mounting operation can be realized.

Example Hereinafter, an example of the present invention will be described with reference to the drawings. First
In FIGS. 1 and 2, reference numeral 1 denotes a cassette holder for holding a VTR magnetic tape cassette (hereinafter, simply referred to as a cassette) 2, which is moved by a moving means 4 between a cassette insertion position and a cassette operating position on a reel stand 3. It is movable. That is, rod-shaped projections 5 are provided on both sides of the cassette holder 1, and the projections 5 are movably engaged with guide grooves 7 formed on a pair of left and right side plates 6 arranged on both sides of the cassette holder 1. Further, a rotating lever 9 is attached to the outer side portions of the pair of side plates 6 via a shaft body 8 by arrows A,
It is rotatably attached as shown by B, and the projection 5 is movably engaged with an elongated hole 10 formed in the rotation lever 9.

Therefore, when the rotation lever 9 is rotationally driven in the directions of arrows A and B by a driving device (not shown), the cassette holder 1
Are moved between a cassette insertion position and a cassette operating position. The guide groove 7 is composed of a horizontal portion 7a and a vertical portion 7b. Therefore, the cassette holder 1 moves horizontally from the cassette insertion position to a position above the reel table 3 and then descends onto the reel table 3. Reference numeral 12 denotes a pressing lever that is rotatable in the directions of arrows A and B via a rotary support shaft 11 that is planted on both sides of the cassette holder 1. A pressing support shaft 13 into which a pressing roller 14 is inserted and which is rotatably attached is locked to the pressing lever 12. Further, the pressing lever 12 is at the cassette operating position and, as shown in FIG.
One end of a pressing spring 16 that acts as a pressing force for pressing the upper surface of the cassette above the cassette toward the reel stand 3 is locked, and the other end of the pressing spring 16 is provided on both sides of the cassette holder 1. It is locked to the spring hook 18. The pressing means including the pressing lever 12 and the pressing roller 14 has an action of forcibly engaging even if the reel of the cassette and the reel base do not mesh well when the cassette is mounted. Reference numeral 15 denotes a sub-pressing shaft for forcibly pressing the upper surface of the cassette 2 toward the positioning post when the cassette 1 is not smoothly attached to the cassette positioning post 17 for some reason when descending. The cassette holder 1 is planted or attached to both inner surfaces above the post 17 on both sides.

As shown in FIG. 3, in the conventional device that does not have the sub-pressing shaft 15, the cassette 2 may not be smoothly attached to the cassette positioning post 17 due to a delicate factor, and further, in that state, the cassette 2 may be fixed. Press spring when held for a time
However, in the present invention, the sub-pressing shaft 15 forces the cassette 2 to force the cassette 2 to be positioned, and the cassette positioning post 17 is not provided. It can be mounted by pressing. It should be noted that the sub-pressing shaft 15 does not hinder the cassette insertion operation when the cassette is inserted, and does not interfere with the opening and closing of the guard panel 2a of the cassette 2 when the cassette is being moved up and down. It is configured.

EFFECTS OF THE INVENTION As described above, according to the present invention, it is possible to reliably mount the cassette on the reel base and the cassette positioning post, and it is also possible to prevent the pressing spring from yielding and reducing the pressing force.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an essential part of an embodiment of the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a side view of a conventional example. 1 ... Cassette holder, 4 ... Movement means, 11 ... Rotating support shaft, 12 ... Pressing lever, 13 ... Pressing support shaft, 14 ... Pressing roller, 15 ... Sub pressing shaft, 16 ... Pressing Spring, 17 …… Cassette positioning post, 18 …… Spring hook.

Claims (1)

[Claims] 1. A cassette holder which is guided by guide grooves formed in a pair of left and right side plates and is movable between a cassette insertion position and a cassette operating position, and the cassette holder is moved between the two positions. In a cassette mounting apparatus having a moving unit and a pressing unit that presses the upper surface of the cassette above the reel base with a predetermined force at the cassette operating position, in a normal predetermined operation and operation, cassette insertion and cassette lowering / lowering are performed. Without disturbing the opening and closing of the guard panel when rising, on the other hand, when the cassette is not smoothly attached to the positioning post for positioning the cassette due to some obstacle when the cassette descends, the cassette upper surface above the positioning post is A cassette which is provided with a pressing member for forcibly pressing the cassette holder. Door mounting device.