JPS6128284Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention includes a cassette holder configured to be movable between a first position and a second position with respect to the recording/reproducing apparatus main body, and the cassette holder is configured to be movable between a first position and a second position with respect to the main body of the recording/reproducing apparatus. The cassette type recording device is configured such that the cassette is mounted in a predetermined state on the main body of the recording/reproducing apparatus by inserting the cassette into the holder and then moving the cassette holder to the second position. The present invention relates to a cassette mounting device in a playback device.

Cassette type recording/playback device, e.g. cassette type
In a VTR (video tape recorder), the cassette holder is movable relative to the VTR body, and a cassette is inserted into the cassette holder at a first position, and then the cassette holder is moved to a second position. Sometimes the cassette
The cassette mounting device is configured to be mounted at a predetermined mounting position on the VTR.

In such a cassette loading device, when removing a cassette, first move the cassette holder to the first position.
At this position, the cassette is pulled out from the cassette holder. In other words, the cassette was moved in the opposite direction from when it was inserted. Therefore, when trying to record a series of programs, it is troublesome to change the cassette, and it takes a relatively long time to change the cassette.

The present invention is aimed at correcting such problems, and includes a cassette holder configured to be movable between a first position and a second position with respect to the main body of the recording/reproducing apparatus. Then, by inserting the cassette into the cassette holder at the first position and then moving the cassette holder forward to the second position, the cassette is positioned at a predetermined position relative to the main body of the recording/reproducing apparatus. A cassette mounting device for a cassette type recording and reproducing apparatus configured to be mounted in the cassette type recording and reproducing apparatus includes a rotating lever whose intermediate portion is rotatably supported by the cassette holder, and the rotating lever is attached in a backward movement direction. The rotary lever has a stopper portion at one end thereof for regulating the insertion position of the cassette, and a detection portion for detecting insertion of the cassette into the cassette holder at the other end thereof. and the stopper portion is configured to come into contact with a cassette that has been inserted to a predetermined insertion position in the cassette holder to prevent further insertion of the cassette when the rotation lever is in the return position. ,
When the cassette is inserted halfway into the cassette holder, the detecting section is pushed directly or indirectly by the cassette and moves forward against the urging means, and the cassette is further moved to the predetermined insertion position. The stopper portion is configured to move backward by the urging force of the urging means when the detection portion is inserted until A cassette mounting device in a cassette-type recording and reproducing apparatus, characterized in that the cassette is configured to move forward from a backward movement position where the insertion position of the cassette can be restricted to a forward movement position where the insertion position of the cassette cannot be restricted. This is related to. Therefore, by inserting a cassette into the cassette holder, the previously inserted cassette is automatically ejected from the cassette holder, which improves the operability of cassette exchange and also makes it easier to replace the cassette. The time required is shortened, and the insertion position of the cassette can be reliably regulated by the stopper portion with a simple structure.

An embodiment in which the present invention is applied to a VTR cassette mounting device will be described below with reference to the drawings.

A rectangular opening 3 is formed in the top panel 2 of the VTR main body 1, and a cassette holder 4 is arranged facing the opening 3. The cassette holder 4 is composed of a top plate 5, a bottom plate 6, and both side plates 7 and 8, which are joined together. Incidentally, a window 9 covered with a transparent plastic plate is formed approximately in the center of the top plate 5. The cassette holder 4 has openings 10 and 11 formed on the insertion side and the ejection side, respectively.

This cassette holder 4 is connected to the VTR body 1 by means of a pair of links 12 and 13 on the left and right sides.
and these links 12,
By the rotation of 13, the cassette holder 4 can be moved up and down. That is, FIG. 1 shows a state in which the cassette holder 4 has been raised and moved to the first position (non-mounting position). In this state,
The bottom plate 6 of the holder 4 is at approximately the same height as the top panel 2, and is therefore in a position where the cassette 14 can be inserted into the cassette holder 4 through the opening 10 on the insertion side. When the cassette holder 4 is pressed downward in this state, the links 12 and 13 rotate and the cassette holder 4 moves downward while maintaining a substantially horizontal state, reaching the second position (installation position). Ru. In this mounting device, the cassette 14 is mounted at a predetermined loading position on the VTR main body,
A magnetic tape is pulled out from this cassette 14 and mounted on a tape running path.

A rotary lever 15 is rotatably supported on the side plate 8 of the cassette holder 4 via a pin 16, and the lever 15 is rotated around the pin 16 by a coil spring 21. It is urged to rotate in the direction. This lever 15
A stopper 17 is formed by bending at one end.
are installed in succession. This stopper 17 is a notch 18 formed in the bottom plate 6 of the cassette holder 4.
The cassette 14 is inserted through the cassette holder 4 and protrudes into the interior of the cassette holder 4 as shown in FIG.
It is configured to come into contact with the innermost part of the notch 19 at the bottom of the cassette 14 to restrict the depth of insertion of the cassette 14 into the cassette holder 4, that is, the insertion position. Also, a detection roller 2 is attached to the other end of the lever 15.
0 is rotatably supported. This roller 20 is for detecting the inserted cassette 14.

Next, the operation of the cassette loading device for the VTR 1 having the above configuration will be explained.

FIG. 2A shows a state in which the cassette holder 4 is in the non-mounted position and protrudes from the top surface of the top panel 2 of the VTR main body 1. Moreover, the cassette 14 has not yet been inserted into the cassette holder 4. The operation of inserting the cassette 14 into the cassette holder 4 in this state is shown in FIGS. 2B and 2.
This is shown in Figure C. In other words, the cassette holder 4
When the cassette 14 is inserted into the holder 4 through the opening 10 on the insertion side, the upper surface of the front end of the cassette 14 comes into contact with the detection roller 20, causing the rotating lever 15 to move against the coil spring 21 as shown in FIG. 2B. Rotate counterclockwise. Therefore, the stopper 17 provided at one end of this lever 15 moves downward,
The upper end of the stopper 17 moves to a non-operating position below the upper surface of the bottom plate 6. However, cassette 1
4 is further inserted, the detection roller 20 is removed from the cassette 14 as shown in FIG. It projects into the inside of the cassette holder 4 through a notch 18 in the face plate 6. This stopper 17 for this purpose comes into contact with the innermost part of the notch 19 at the bottom of the inserted cassette 14, as shown in FIG. This restricts the position of the cassette 14, prevents further insertion of the cassette 14 into the cassette holder 4, and holds the cassette 14 at a predetermined position.

When the cassette holder 4 into which the cassette 14 is inserted in this manner is moved downward, the cassette 14 is removed.
is mounted at a predetermined mounting position on the VTR body 1, and the magnetic tape is pulled out from this cassette 14 for predetermined recording and reproduction. When recording and reproduction are completed, the cassette holder 4 rises and moves to the non-mounting device as the eject button is operated, and returns to the state shown in FIG. 2C.

Next, the cassette 14a in this cassette holder 4
The operation of removing the cassette 14b and inserting another cassette 14b will be described with reference to FIGS. 2D and 2C. First, a new second cassette 14b is inserted into the cassette holder 4 through the opening 10 on the insertion side. Then, the upper end of the second cassette 14b comes into contact with the roller 20 and pushes the roller 20. As a result, the pivot lever 15 pivots about the pin 16 in a counterclockwise direction in FIG. 2D. Therefore, the stopper 17 connected to the lever 15 moves downward, and the restriction of the position of the first cassette 14a by the stopper 17 is released. This first cassette 14a is therefore movable to the left in FIG. 2D. When the second cassette 14b is further inserted, this cassette 14b is inserted into the first cassette 1.
4a, and the first cassette 14a thereby opens the discharge opening 1 as shown in FIG. 2E.
1 and is pushed forward. When the second cassette 14b is further inserted to a predetermined depth, the detection roller 20 separates from the second cassette 14b, and the lever 15 is rotated clockwise by the coil spring 21. As a result, the stopper 17 connected to the lever 15 moves upward, and the cassette holder 4
protrude inward. Therefore, the pressed cassette 14b
As shown in FIG. 2E, the innermost part of the notch 18 is
The second cassette 14b comes into contact with the stopper 17, thereby preventing further insertion of the second cassette 14b into the cassette holder 4 and holding it at a predetermined position.

As described above, in this cassette holder 4, when recording and reproduction by the first cassette 14a is completed, by inserting the second cassette 14b into the holder 4, the first cassette 1
4a will be ejected, and the first cassette 1
The operation of pulling out the cassette 4a is no longer necessary, improving the operability of replacing the cassette. In this cassette holder 4 as well, the cassette 14a after recording and reproduction can be pulled out from the opening 10 on the insertion side of the cassette holder 4, as in the conventional cassette holder. In this case, since the lever 15 rotates counterclockwise in FIG. 2F about the pin 16 via the roller 20 when the cassette 14a is pulled out, the roller 20 pulls out the cassette 14a from the opening 10. will not be prevented.

Next, a second embodiment of the present invention will be described with reference to FIG. detection part) is cam 2
5 and is configured to be able to come into contact with it. i.e. cam 2
5 is rotatably supported on the side plate 8 via a pin 26, and a detection arm 27 protruding from the cam 25 is integrally provided. When the cassette 14b is inserted into the cassette holder 4, the cassette 14b pushes the detection arm 27 and rotates the cam 25, as shown by the chain line in FIG. Then, the maximum diameter part of this cam 25 pushes the other end of the lever 15, and the lever 15 is pushed to the pin 1.
6 in the counterclockwise direction in FIG. 4, and the stopper 17 moves downward. Therefore, the second
The first cassette 14 is pushed by the second cassette 14b.
a is ejected forward, and the same operation as in the first embodiment is realized.

Although the present invention has been described above with reference to embodiments, the present invention has the advantage of urging a rotary lever, the intermediate portion of which is rotatably supported by the cassette holder, in the backward direction using a biasing means. A stopper for regulating the insertion position of the cassette is provided at one end of the rotary lever, and a detection portion for detecting insertion of the cassette into the cassette holder is provided at the other end, and the stopper portion is set so that the rotary lever is in the return position. In some cases, the detector is configured to come into contact with a cassette that has been inserted to a predetermined insertion position in the cassette holder to prevent further insertion of the cassette, and the detector is configured to contact the cassette when the cassette is inserted to a predetermined insertion position in the cassette holder. At this time, the cassette is pushed directly or indirectly and moves forward against the urging means, and when the cassette is further inserted to the predetermined insertion position, it is returned by the urging force of the urging means. When the rotary lever moves forward as the detection section moves forward, the stopper section changes from a backward movement position where the cassette insertion position can be restricted to a cassette insertion position. It is configured to move forward to a forward movement position where it is impossible to control the movement. Therefore, if a second cassette is inserted into the cassette holder without taking out the first cassette from the cassette holder which has returned to the first position after the predetermined recording/playback has been completed, this insertion will be detected by the detection unit. When the first cassette is inserted, the stopper portion that restricts the insertion position of the first cassette releases the position restriction. Therefore, when the first cassette is pushed into the second cassette and automatically ejected, and then the second cassette is inserted into the cassette holder to a predetermined insertion position, the second cassette is inserted into the cassette holder. The detection section detects that the second cassette has been inserted up to the predetermined insertion position, and as a result, the stopper section moves back to prevent further insertion of the second cassette that has been inserted to the predetermined insertion position. Therefore, the operability of replacing the cassette is improved, the time required for replacing the cassette is shortened, and the insertion position of the cassette can be reliably regulated by the stopper portion with a simple structure.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the main parts of the first embodiment of the VTR to which the present invention is applied, Fig. 2A is a side view of the main parts, and Figs. 2B and 2C show the cassette holder without a cassette. A side view similar to FIG. 2A, FIG. 2D and FIG. 2E showing the operation of inserting a cassette.
The figure is a side view on the same side as Figure 2A, which shows the operation of inserting another second cassette into the cassette holder containing the cassette and ejecting the first cassette for automatic exchange. FIG. 4 is a perspective view of the main part showing the operation of the stopper, and FIG. 4 is a side view of the main part of a second embodiment of the VTR to which the present invention is applied. In addition, in the symbols used in the drawings, 1... VTR
Main body, 4...Cassette holder, 14...Cassette, 15...Rotating lever, 17...Stopper, 2
0...detection roller (detection section).

Claims (1)

[Claims for Utility Model Registration] A cassette holder configured to be movable between a first position and a second position with respect to the main body of the recording/reproducing apparatus, wherein the cassette holder is The cassette-type recording/reproducing apparatus is configured such that the cassette is mounted in a predetermined state in the main body of the recording/reproducing apparatus by inserting the cassette into the main body of the recording/reproducing apparatus and then moving the cassette holder to the second position. The cassette mounting device of the apparatus includes a rotary lever whose intermediate portion is rotatably supported on the cassette holder, and a biasing means for biasing the rotary lever in the backward movement direction, The rotary lever is provided with a stopper portion at one end for regulating the insertion position of the cassette, and a detection portion for detecting insertion of the cassette into the cassette holder at the other end, and the stopper portion is provided on the rotary lever. When the cassette is in the return position, the detection unit is configured to abut against a cassette that has been inserted to a predetermined insertion position in the cassette holder to prevent further insertion of the cassette, and the detection unit is configured to detect when the cassette is inserted into the cassette holder. When the cassette is inserted halfway, it is pushed by this cassette and reciprocates against the urging means, and when the cassette is further inserted to the predetermined insertion position, it is restored by the urging force of the urging means. The stopper section is configured to move from a backward movement position in which the stopper part can restrict the insertion position of the cassette to the insertion position of the cassette by the rotational lever moving forward in accordance with the forward movement of the detection part. 1. A cassette mounting device for a cassette-type recording and reproducing apparatus, characterized in that the device is configured to move forward to a forward movement position where the forward movement cannot be restricted.