JPH0516097B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a cassette loading device for automatically loading a cassette inserted from a cassette insertion port from a cassette insertion position to a cassette operating position.

Configuration of the conventional example and its problems The conventional cassette mounting device will be explained below. FIG. 1 shows a perspective view of a conventional cassette mounting device. 1 is a cassette holder for holding a cassette, and rod-shaped protrusions 2 are implanted on both sides of the cassette holder 1, and the rod-shaped protrusions 2 are installed in guide grooves 4 formed in a pair of left and right side plates 3 arranged on both sides of the cassette holder 1. The cassette holder 1 is movably engaged between the cassette insertion position and the cassette operating position. A rotary lever 6 is rotatably attached to the outer side of the pair of left and right side plates 3 via a shaft 5 by means of a moving means 7, and a rod-shaped protrusion 2 is inserted into an elongated hole 8 formed in the rotary lever 6. movably engaged. Reference numeral 9 denotes a blinder panel, which is rotatably supported on a pair of left and right side plates 3 by shafts 10 installed on both sides of the blinder panel 9. A panel gear 11 is fitted into the shaft body 10, and the panel gear 1
Gear part 13 of panel opener 12 meshing with 1
The blinder panel 9 rotates around the shaft body 10 as the blinder panel is driven. The panel opener 12 rotates around a shaft 15 as a cam 14 rotates together with a rotary lever 6 rotated by a moving means 7 via a shaft 5 .

The operation of the conventional cassette loading device constructed as described above will be described below with reference to FIGS. 2 to 5, which are side views of essential parts of the conventional cassette loading device.

FIG. 2 shows the case where the cassette holder 1 is in the cassette insertion position, and the blinder panel 9 is
It is in a position to close the cassette insertion port 16. At this time, when the cassette 17 is inserted into the cassette holder 1 through the cassette insertion opening 16 while opening the blinder panel 9 by rotating it around the shaft body 10, the moving means 7 is driven by a drive device (not shown) and rotates. Lever 6 rotates around shaft 5 in the direction of arrow A. Accordingly, the cassette holder 1 moves horizontally from the cassette insertion position shown in FIG. 2 to the position shown in FIG. 3. After that, cassette holder 1 is
The cassette 17 is mounted by lowering from the position shown in the figure to the cassette operating position shown in FIG. When the cassette holder 1 is in the cassette operating position shown in FIG. 4, the shape of the cam 14 causes the panel opener 12 to close the cassette insertion opening 16 in the same way as when the cassette holder 1 is in the cassette insertion position shown in FIG. The blinder panel 9 is rotated around the shaft body 15 so that the blinder panel 9 is located at the position shown in FIG. When the cassette 17 installed in the cassette operating position shown in FIG. 4 is taken out to the cassette insertion position shown in FIG. As the cassette holder 1 rotates, the cassette holder 1 rises from the cassette operating position shown in FIG. 4 to the position shown in FIG. 3. At this time, the panel opener 12 is rotated around the shaft 15 by the protrusion 18 of the cam 14, and the blinder panel 9 is rotated around the shaft 10, so that the cassette 17 reaches the cassette insertion position without hitting the blinder panel 9. It allows you to move. Thereafter, the cassette holder 1 is moved horizontally from the position shown in FIG. 3 to the cassette insertion position shown in FIG.
It is taken out from 6. At this time, due to the shape of the cam 14, the panel opener 12 moves the shaft 15 so that after taking out the cassette 17, the blinder panel 9 is rotated to a position where the cassette insertion opening 16 is closed.
rotate around.

However, in the above configuration, as shown in FIG. 5, when the cassette holder 1 is in the cassette operating position and the cassette 17 is attached, the panel opener 12 is rotatable around the shaft 15. A panel gear 11 that meshes with a gear portion 13 of a panel opener 12 is rotatable around a shaft 10, so that the blinder panel 9 can be freely opened and closed at a cassette insertion opening 16. Therefore, when attempting to insert a new cassette 19 through the cassette insertion slot 16, the blinder panel 9 is rotatable, so the new cassette 19 is accidentally inserted into the cassette loading device, causing damage to the cassette loading device and the cassette 17. ,1
9 or damage the cassettes 17 and 1.
There was a problem in that there was a possibility that the number 9 could not be taken out.

Purpose of the invention The present invention solves the above-mentioned conventional problems.
Double insertion of cassettes is prevented by providing a protrusion on the cam that comes into contact with the panel opener when the cassette holder is in the cassette operating position, and restricting the movement of the panel opener so that it does not rotate when the blinder panel is in the closed state. An object of the present invention is to provide a cassette mounting device that can perform the following operations.

Structure of the Invention The present invention provides a panel opener that is rotatably provided in a cassette insertion slot and is driven by a cam that is rotated by a moving means that moves a cassette holder between a cassette insertion position and a cassette operating position. This is a cassette mounting device in which the cam is provided with a protrusion that restricts the movement of the panel opener so that the blinder panel rotated by the cassette holder does not rotate in the closed state when the cassette holder is in the cassette operating position. When the cassette is installed in the cassette operating position, a closed blinder panel makes it impossible to insert a new cassette through the cassette insertion slot, thereby preventing double insertion of cassettes. It is.

DESCRIPTION OF EMBODIMENTS FIGS. 6 to 8 show side views of essential parts of a cassette mounting device in an embodiment of the present invention.
Note that the same members as those in the conventional example described above are given the same numbers and their explanations will be omitted. In FIGS. 6 to 8, 20 is a cam that rotates together with the rotating lever 6 that is rotated by the moving means 7 via the shaft body 5,
It has a convex portion 21, a concave portion 22, and a protrusion 23.

The operation of the cassette loading device of this embodiment will be explained below.

FIG. 6 shows the case where the cassette holder 1 is in the cassette insertion position, and the blinder panel 9 is in a position to close the cassette insertion opening 16. At this time, when the cassette 17 is inserted into the cassette holder 1 through the cassette insertion opening 16 while opening the blinder panel 9 by rotating it around the shaft 10, the moving means 7 is driven by a drive device (not shown) and the rotating lever is moved. 6 rotates around the shaft body 5 in the direction of arrow A. Accordingly, the cassette holder 1 moves horizontally from the cassette insertion position shown in FIG. 6 to the position shown in FIG. After that, cassette holder 1 is placed in the 7th
The cassette 17 is mounted by lowering from the position shown in the figure to the cassette operating position shown in FIG. When the cassette holder 1 is in the cassette operating position shown in FIG. 8, the follower end 24 of the panel opener 12 enters the recess 22 of the cam 20, so that the panel opener 12 is in the cassette insertion position shown in FIG. The blinder panel 9 is rotated around the shaft body 15 so that it is located at a position where the cassette insertion port 16 is closed in the same way as when the blinder panel 9 is in the position shown in FIG. In this state, the follower end 24 of the panel opener 12, which has entered the recess 22 of the cam 20 to which the cam 20 is fixed, hits the protrusion 23 of the cam 20, causing the panel opener 12 to rotate around the shaft 15. Therefore, the panel gear 11 that meshes with the gear portion 13 of the panel opener 12 is fixed, and the blinder panel 9 is fixed in a state in which the cassette insertion opening 16 is closed.
Therefore, insert a new cassette 19 into the cassette insertion slot 1.
If an attempt is made to insert a new cassette 19 from the cassette loading device 6, the blinder panel 9 will not rotate around the shaft 10, so a new cassette 19 cannot be inserted into the cassette loading device. When the cassette 17 installed in the cassette operating position shown in FIG. 8 is taken out to the cassette insertion position shown in FIG.
The rotation lever 6 rotates around the shaft body 5 in the direction of arrow B, and the cassette holder 1
is raised from the cassette operating position shown in FIG. 8 to the position shown in FIG. At that time, the convex portion 2 of the cam 20
1, the follower end 24 of the panel opener 12 moves from the recess 22 of the cam 20, the panel opener 12 rotates around the shaft 15, rotates the blinder panel 9 around the shaft 10, and opens the cassette. 17 can be moved to the cassette insertion position without hitting the blinder panel 9.

Thereafter, the cassette holder 1 is horizontally moved from the position shown in FIG. 7 to the cassette insertion position shown in FIG. 6, and the cassette 17 is taken out from the cassette insertion opening 16. At this time, the shape of the cam 20 causes the panel opener 12 to rotate about the shaft 15 so as to rotate the blinder panel 9 to a position that closes the cassette insertion opening 16 after taking out the cassette 17.

As described above, according to this embodiment, the cam that rotates together with the rotary lever that is rotated by the moving means is configured to have a convex portion, a concave portion, and a protrusion, thereby regulating the movement of the panel opener. This prevents double insertion of the cassette by preventing the blinder panel from rotating in the closed position when the cassette holder is in the cassette operating position.

Effects of the Invention As described above, in the cassette loading device of the present invention, the cassette holder is moved to the cassette operating position by a cam that is rotated by the drive of the moving means that moves the cassette holder between the cassette insertion position and the cassette operating position. In some cases, double insertion of cassettes can be easily prevented by providing a protrusion that restricts the movement of the panel opener so that the blinder panel, which is rotatably installed in the cassette insertion slot, does not rotate in the closed state. The industrial effect is great.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional cassette mounting device, Figs. 2 to 5 are side views of the same main parts, and Figs. 6 to 8 are side views of main parts of a cassette mounting device according to an embodiment of the present invention. It is a diagram. 1...Cassette holder, 3...Side plate, 4...
Guide groove, 6... Rotating lever, 7... Moving means,
9...Blinder panel, 12...Panel opener, 16...Cassette insertion slot, 20...Cam, 22...Recess, 23...Protrusion.

Claims (1)

[Scope of Claims] 1. A cassette holder that 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; a blinder panel that is rotatably provided in the cassette insertion opening of the cassette holder; a panel opener that rotates the blinder panel; and a panel opener that rotates when the moving means is driven to drive the panel opener. a cam, the cam is provided with a protrusion that comes into contact with the panel opener when the cassette holder is in the cassette operating position, and the movement of the panel opener is prevented from rotating in the closed state of the blinder panel. A cassette mounting device characterized by regulating the following.