JPH054337U - Cassette mounting device - Google Patents

Abstract

(57) [Abstract] [Purpose] When a small cassette such as an 8 mm VTR is used in a front loading cassette loading device, the size of the cassette door is set to allow for a margin. [Structure] The bottom plate 12 of the cassette holder 9 is rotatably supported by a spring.
11. The cassette holder 16 is biased and attached, and the cassette pressing plate 16 is slidably attached to the left and right side plates 10, 10 of the cassette holder 9 by urging the spring 17 in one direction to attach the cassette holder 9 to the cassette. In the first position for attachment / detachment, the bottom plate 12 is rotated, and the cassette pressing plate 16 is also retracted against the bias of the spring 17, both of which are located outside the rotation radius of the cassette door 7. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention mounts a cassette on a magnetic recording / reproducing apparatus and automatically loads the cassette. The present invention relates to a cassette front loading device for loading and unloading.

[0002]

[Prior art]

8 in the magnetic recording and reproducing apparatus using a compact cassette tape, such as mm VTR is in terms of the shape of the cassette, subjected to various restrictions hitting To adopt the cassette loading mechanism of a so-called front Rohde _Lee ring system. FIG. 5 shows an external perspective view and a side view of an 8 mm VTR cassette. In the figure, an opening / closing lid 2 is rotatably attached to a spindle 1a of a cassette 1.

[0003]   FIG. 6 shows a sectional view of a cassette loading device in the front loading system. In FIG. 6, reference numeral 3 is a side plate, and the side plate 3 is provided with guide grooves 3a, 3b having a substantially inverted L shape. ing. 4 is a cassette holder, and the cassette holder 4 has a cassette pressing piece on the top surface. 5 is attached. The cassette holder 4 is provided with guide shafts 6a, 6b. 6b is slidably guided in the guide grooves 3a, 3b, and the cassette holder 4 is for attaching and detaching the cassette. From the second position to transfer the tape from the cassette to a second position.

[0004]   When mounting the cassette 1 in the cassette holder 4, the cassette 1 is held. There is a restriction on the arrangement of the cassette pressing piece 5 for the purpose. That is, as shown in FIG. In consideration of the turning radius, avoid the shaded portion 1c and move it within the range of the dimension L of the top surface 1b of the cassette 1. The cassette pressing piece 5 must be arranged. 7 is a cassette door, which is a support shaft. Rotate with 7a as a fulcrum.

[0005]

[Problems to be solved by the device]

  In the above-mentioned front loading type cassette loading device, If it is designed to be wide, the size of the cassette door 7 becomes large, as shown in FIG. The bottom surface of the cassette holder 4 and the cassette pressing piece 5 within the turning radius of the cassette door 7. Since it is located at the position, the opening and closing of the cassette door 7 is hindered. Cassette holder There is also a method of notching the bottom of 4 partially, but in that case, if the cassette door 7 is opened, A gap is created between the set holder 4 and the cabinet 8 that constitutes the device, and dust or the like is generated. The problem that the fingers were accidentally pinched in the gap when entering the cassette or mounting the cassette There is.

[0006]

[Means for Solving the Problems]

  According to the present invention, the bottom plate of the cassette holder is rotatably attached by spring biasing, and the cover is attached. The set pressing plate is slidable against the left and right side plates of the cassette holder and springs in one direction. In the first position, in which the cassette holder is urged to attach and detach the cassette, The plate is rotated, and the cassette pressing piece is also retracted against the bias of the spring, so that both are covered. It is configured to be located outside the turning radius of the set door.

[0007]

[Action]

  With the above configuration, when the cassette is installed, the bottom plate of the cassette holder and the cassette pusher Since both pressure plates are located outside the turning radius of the cassette door, it does not affect the cassette loading operation. It does not hurt.

[0008]

【Example】

  Hereinafter, a specific embodiment of the present invention will be described with reference to the drawings. Figure 1 Is a side view of the cassette holder of the device of the present invention in a first position, and FIG. 3 and 4 are side views of the cassette holder in the second position, and FIG. 4 is a cassette holder. It is a side view which shows the cassette mounting state in the 2nd position of FIG.

Although description will be given with reference to the drawings, the same parts as those of the conventional example will be denoted by the same reference numerals and the description thereof will be omitted. In FIG. 1, the cassette holder 9 includes left and right side plates 10, 10 (only one of which is shown in the figure), a bottom plate that is rotatable about a support shaft 10a and is urged upward by a spring coil 11, and an elastic piece. And a top plate 14 having 13. A long hole 15 is cut into the side plate 10, and a cassette pressing plate 16 is slidably inserted into the long hole 15, and the pressing plate 16 is biased to the left in the drawing by a torsion spring 17. There is. 18 is a mechanism chassis. It should be noted that the side plate 3 is formed with an inclined projection piece 19 and a projection piece 20. 8a is a stopper for the cassette door 7.

Next, the operation of the device of the present invention will be described. In the first position for attaching and detaching the cassette in FIG. 1, the bottom plate 12 of the cassette holder 9 has the protrusion 12a of the bottom plate 12 abutting the inclined protrusion 19 of the side plate 3 and therefore resists the spring coil 11. It rotates counterclockwise around the support shaft 10a as a fulcrum, and the cassette pressing plate 16 also contacts the projecting piece 20, and slides the long hole 15 of the side plate 10 rightward against the torsion spring 17. It is in the moved position and outside the turning radius of the cassette door 7. Therefore, when the cassette is mounted, even if the cassette door 7 is pressed, the rotating operation of the cassette door 7 can be performed without any trouble.

[0011]   The motor (not shown) rotates when the cassette is installed and inserted, and the power transmission mechanism (see The guide shafts 6a, 6b are slidably guided in the guide grooves 3a, 3b via (not shown), and the cassette holder 9 From the first position of cassette attachment / detachment with the cassette 1 placed The tape is transported to a second position where it is pulled out. Cassette holder9Is the position in Figure 1 When moved rightward from the above, the protrusions 12a of the bottom plate 12 and the cassette pressing plate 16 are respectively inclined. Since the protrusions 19 and 20 move away from each other, the bottom plate 12 and the pressing plate 16 are biased by the springs 11 and 17. To return to a predetermined position (see FIG. 3). That is, the cassette holder9The bottom plate 12 of It abuts on the positioning piece 18a of the mechanism chassis 18 and is fixed and held, and The set pressing plate 16 is located on the lower surface of the elastic piece 13 of the top plate 14, and The cassette pressing plate 16 reliably presses and holds the cassette 1 at a predetermined position by 13 ( (See FIG. 4).

By the eject operation, the cassette holder 9 performs an operation opposite to the above-described operation, is transferred from the second position to the first position, and the cassette 1 can be taken out. The bottom plate 12 and the cassette pressing plate 16 reach the positions shown in FIG. 1 by the above-mentioned inclined projection piece 19 and the projection piece 20 while the cassette holder 9 is being transferred on the return path.

[0013]

[Effect of device]

  With the configuration of the present invention, the bottom plate of the cassette holder and the cassette pressing plate are made movable. Structure of the cassette loading device by front loading a small cassette This simplifies the design and allows the cassette mounting port to be designed to have a comfortable dimension.

[Brief description of drawings]

FIG. 1 is a side view of the present invention.

FIG. 2 is a partial plan view of the present invention.

FIG. 3 is a side view showing another state of the present invention.

FIG. 4 is a side view when the cassette of the present invention is mounted.

FIG. 5 is an external perspective view of a cassette.

FIG. 6 is a side view of a conventional example.

[Explanation of symbols]

1 cassette 3 side plate 6 guide shaft 7 cassette door 9 cassette holder 10 side plate 12 bottom plate 14 top plate 16 cassette pressing plate 19 inclined projection piece 20 projection piece

Claims (2)

[Scope of utility model registration request] 1. A cassette holder for holding and transferring the cassette between a first position for attaching and detaching the cassette and a second position for drawing out the tape from the cassette, and a side plate having a substantially inverted L-shaped guide groove. A drive source for slidingly guiding the cassette holder along the guide groove, the cassette holder being movable left and right side plates, a bottom plate urged upward and movable, and a ceiling fixed to the left and right side plates. A cassette mounting device, characterized in that the cassette holder is located at a first position and the bottom plate is movable so as to be outside the turning radius of the cassette door. 2. A side face plate is provided with an elongated hole, and a cassette pressing plate which is slidably and urged in one direction is attached to the elongated hole, and the cassette pressing plate is provided with a first cassette holder. 2. The cassette mounting device according to claim 1, wherein the cassette mounting device is outside the turning radius of the cassette door when the cassette mounting position is in the position.