JPH064954A - Cassette loading device for magnetic recording / reproducing device - Google Patents

Abstract

(57) [Summary] [Purpose] The cassette is securely mounted in the VTR by holding the four corners of the cassette and performing the mounting operation of the cassette. A cassette mounting device of a magnetic recording / reproducing apparatus having a mechanism for automatically loading a cassette at a predetermined position, wherein a pair of left and right guides provided with a mechanism for holding and carrying the cassette provided on both outer sides of a cassette holder. Grooves A, B,
A side plate having C, a shaft A inserted into the guide groove A, and a shaft B inserted into the guide groove B are planted on both side surfaces, respectively, and a cassette holder for holding and carrying a cassette, and a top surface of the cassette holder. , A spring A installed at both ends of the top surface and installed on the insertion direction side of the cassette, and shafts C and D that are inserted into and engaged with the guide groove C, and are attached to the cassette holder. A pair of left and right members that are interlocked with each other, are vertically guided by the guide groove C, and are slidably provided on both side plates, and a spring C provided on the top surface of the member. It is characterized by that.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette mounting device for a magnetic recording / reproducing device such as a VTR.

[0002]

2. Description of the Related Art In recent years, in a magnetic recording / reproducing apparatus such as a video tape recorder, it has become common to store a magnetic tape in a cassette and handle it. When the cassette is mounted in the magnetic recording / reproducing apparatus, it can be surely and smoothly performed. Has been requested.

An example of a conventional cassette mounting device will be described below with reference to the drawings. FIG. 3 is a perspective view of a cassette mounting device mechanism of a conventional magnetic recording / reproducing apparatus. 4 (a) to 4 (c) are operation diagrams of a cassette mounting device mechanism of a conventional magnetic recording / reproducing apparatus.

In FIG. 3, reference numeral 1 denotes a cassette in which a magnetic tape is wound and stored, and a cassette holder 2 for holding the cassette 1 has a cassette insertion position and a cassette operation on a positioning pin 15 planted on the chassis 14. It is movable to and from the position.

On both sides of the cassette holder 2, an axis A3a,
A shaft B3b is planted, and the shaft B3b is inserted through the pair of left and right guide grooves A5a and B5b provided on the side plate 4 installed on the chassis 14 on both outer sides of the cassette holder 2.

Located at both ends of the top surface of the cassette holder 2,
Moreover, a leaf spring 6 is installed on the side of the cassette insertion direction B.

Reference numeral 7 denotes an arm, which is rotatably locked to a shaft 4a planted on both outer sides of the side plate 4. A long hole 7a is provided at the tip of the arm 7, and the shaft A3 is inserted in the long hole 7a.
a is engaged.

Reference numeral 13 denotes a pin, which is planted on the chassis 14 at a position where it is inserted into the reel brake release hole 13 of the cassette 1 when the cassette 1 is moved vertically.

The operation of the cassette mounting device constructed as described above will be described below.

Insert the cassette 1 from the insertion opening into the cassette holder 2
When inserted into the cassette holder 2, the cassette 1 is held in the cassette holder 2 by being urged downward by the leaf spring 6 provided on the top surface of the cassette holder 2. By pushing the cassette 1 in the cassette insertion direction (i), a switch (not shown) is turned on, a motor (not shown) rotates, and the arm 7 rotates via a transmission mechanism (not shown). Axis A3a is arm 7
The guide groove A provided on the side plate 4 receives a force in accordance with the rotation of
The cassette holder 2 moves along the shape of 5a. In FIG. 3, initially, it moves in the horizontal direction b and then in the vertical direction c.

When the cassette 1 is moved vertically, the pin 12 is inserted into the reel brake release hole 13 and the reel brake (not shown) is released. The positioning pin 15 and the positioning hole 16 are inserted into the cassette 1, and the cassette 1 is mounted at the cassette operating position. After that, the tape is pulled out from the cassette and the tape loading operation is performed.

Reference numeral 17 denotes a cassette lid, which is opened by a lid opening mechanism (not shown) when the cassette 1 moves in the horizontal direction.

[0013]

However, in the conventional structure, the cassette 1 is inserted into the cassette holder 2, and
Push in the cassette insertion direction (1) to move the motor (not shown)
Despite the rotation of the and the start of the mounting operation, if you do not release the pushed hand, the cassette 1
a is caught in the hand and does not go down. Further, since the cassette holder 2 holds down the upper surface 1c of the cassette 1 on the insertion direction side, the cassette 1 therefore has a surface 1b on the insertion direction side.
Only the lower part falls, and the cassette 1 is mounted in an oblique posture. Therefore, the reel brake release hole 13 has the pin 12
And the reel brake (not shown) is not released. After that, the tape is pulled out from the cassette 1, but the tape wound on the reel is not pulled out, and the tape is damaged.

This is because I want to insert the cassette surely,
It is a problem that people often put their hands together with the cassette more than necessary, and it has the drawback of being extremely difficult to use.

In order to solve the above problems, the present invention solves the conventional drawbacks and provides a cassette mounting apparatus which can surely mount the cassette even when the cassette is pushed all the way in by hand.

[0016]

In order to solve the above problems, a cassette mounting device for a magnetic recording / reproducing apparatus according to the present invention comprises:
A cassette mounting device of a magnetic recording / reproducing apparatus having a mechanism for automatically loading a cassette at a predetermined position, wherein a mechanism for holding and carrying the cassette is provided on both outer sides of a cassette holder, and a pair of left and right guide grooves A, A side plate having B and C, a shaft A inserted into the guide groove A, and a shaft B inserted into the guide groove B are planted on both side surfaces, respectively, of a cassette holder for holding and carrying a cassette, and a cassette holder. It has a spring A installed on the top surface, positioned at both ends of the top surface, and installed on the insertion direction side of the cassette, and shafts C and D inserted into and engaged with the guide groove C, and A pair of left and right members which are interlocked with the holder, are vertically moved by being guided by the guide groove C, and are slidably provided on both side plates, and a spring C provided on the top surface of the member. Of a magnetic recording / reproducing apparatus equipped with Tsu door mounting device.

[0017]

According to the present invention, even if the cassette is pushed further into the cassette insertion direction than necessary, the cassette mounting operation is performed vertically while pushing the upper surfaces of the four corners of the cassette, so that the cassette does not tilt. By doing so, the cassette can be reliably mounted in the cassette operating position.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cassette mounting apparatus according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a cassette mounting device mechanism of the magnetic recording / reproducing apparatus of the present invention. 2 (a) to 2 (c) are operation diagrams of the cassette mounting device mechanism of the magnetic recording / reproducing apparatus of the present invention.

In FIG. 1, reference numeral 1 is a cassette. A shaft A3a and a shaft B3b are planted on both side surfaces of the cassette holder 2, and are inserted into a pair of left and right guide grooves A5a and B5b provided on the side plate 4 installed on the chassis 14.

Located at both ends of the top surface of the cassette holder 2,
In addition, the leaf spring 6 is installed on the cassette insertion direction side.

Reference numeral 7 denotes an arm, which is rotatably locked to a shaft 4a planted on both outer sides of the side plate 4. A long hole 7a is provided at the tip of the arm 7, and the shaft A3 is inserted in the long hole 7a.
a is engaged.

A shaft C9a and a shaft D9b are planted on the outside of the member 8, engage with guide grooves C10 provided on the side plate 4, and can slide inside the side plate 4 in a pair of left and right shapes. It is installed in the state of. A leaf spring 11 is installed on the upper portion of the member 8. One end of the member is installed at a position where it is interlocked by receiving the force when the axis A3a makes a vertical motion.

Reference numeral 12 is a pin, which is planted on the chassis 14 at a position where it is inserted into the reel brake release hole 13 when the cassette 1 is moved vertically.

The operation of the cassette mounting apparatus of the present invention constructed as above will be described.

In the present embodiment, with the above configuration,
When the cassette holder 2 operates vertically, the shaft A3a pushes the member 8 so that the cassette holder 2 and the member 8 can operate integrally. Therefore, the cassette holder 2
The spring 6 on the top surface of the upper surface 1c on the insertion side of the cassette 1
Since the leaf spring 11 on the top surface of the member 8 pushes the upper surface 1d on the rear surface of the cassette, the cassette 1 can be surely pressed at the four corners, and can be surely operated vertically without being tilted. The cassette 1 can be attached to the.

[0027]

As described above with reference to the embodiments, according to the present invention, even if the cassette is pushed in more than necessary when the cassette is inserted, the cassette does not tilt and the vertical movement is surely performed. The cassette can be securely installed at the cassette operating position. Therefore, the operator can insert without worrying about the amount of insertion and the timing of insertion, and it is possible to prevent incomplete mounting of the cassette.

[Brief description of drawings]

FIG. 1 is a perspective view of a cassette mounting device mechanism of a magnetic recording / reproducing apparatus of the present invention.

2A is an operation diagram of a cassette mounting device mechanism of the magnetic recording / reproducing apparatus of the present invention; FIG. 2B is an operation diagram of the cassette mounting device mechanism; FIG. 2C is an operation diagram of the cassette mounting device mechanism.

FIG. 3 is a perspective view of a cassette mounting device mechanism of a conventional magnetic recording / reproducing device.

FIG. 4A is an operation diagram of a cassette mounting device mechanism of a conventional magnetic recording / reproducing device. FIG. 4B is an operation diagram of the cassette mounting device mechanism. FIG. 4C is an operation diagram of the cassette mounting device mechanism.

[Explanation of symbols]

 1 Cassette 2 Cassette Holder 3a Axis A 5a Guide Groove A 6 Leaf Spring 8 Member 9a Axis C 9b Axis D 10 Guide Groove C 11 Leaf Spring

Claims (1)

[Claims] 1. A pair of left and right guide grooves A, B, C provided on both outer sides of a cassette holder in a cassette mounting apparatus of a magnetic recording / reproducing apparatus having a mechanism for automatically loading a cassette at a predetermined position. A side plate, a shaft A inserted through the guide groove A, and a shaft B inserted through the guide groove B,
A cassette holder, which is planted on both sides, holds and carries the cassette, and is installed on the top surface of the cassette holder.
It has springs A located at both ends of the top surface and installed on the cassette insertion direction side, and shafts C and D which are inserted into and engaged with a guide groove C, and are interlocked with the cassette holder, and also have a guide groove C. A mechanism for holding and carrying a cassette, which is guided by the user and moves up and down, and is provided with a pair of left and right members slidably provided on both side plates and a spring C provided on the top surface of the member. A cassette mounting device for a magnetic recording / reproducing device provided.