JPS62204463A - Cassette storage device - Google Patents

Abstract

PURPOSE:To obtain a device by which an attitude and the position in the front and rear direction can be easily recognized, and with high accuracy, by providing a limit switch whose operating part is protruded at the upper surface of a bottom, and providing a light emitting diode and a pair of optical sensors at the side plane of a bottom facing with a mis-insertion preventing guide groove at the bottom plane of a cassette. CONSTITUTION:An optical sensor 9 is provided at the inside of the opposite side plane of a bottom 1, and receives light from a light emitting diode 8. The position of the optical path is set so that it passes within a mis-insertion preventing groove 10 provided at a cassette 6, when the cassette 6 is loaded at the bottom 1. By structuring the device in such way, it is detected that the cassette 6 is not in a floating state by depressing a limit switch 7 by the cassette 6 when the cassette 6 is loaded at the bottom 1, and the position in the front and rear direction can be recognized by receiving the light beams of the light emitting diode 8 with the optical sensor 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cassette storage device used in a magnetic recording/reproducing device or the like.

[Conventional technology]

FIG. 3 shows a conventional cassette storage device. In the figure, 1 is a bottom, 2 is a reinforcing plate, 3 is a leaf spring, and 4 is a shut.

As shown in FIG. 4, a cassette storage device is provided corresponding to the opening 5a of the main body 5 of the magnetic recording/reproducing device, and when the cassette 6 is inserted into the cassette storage device from the front lid side,
It is fixed by a leaf spring 3, and when the shutter 4 is pushed, the lock release pin on the cassette front cover is pushed and the lock 7 is released.

In such a device, the cassette 6 inserted from the front lid side is maintained in its posture by the vertical and horizontal regulation of the bottom 1, and is held in the bottom 1 while being pressed downward by the leaf spring 3 to maintain its posture. The shutter 4 operates until it hits the bent part, and when the operation is completed, the front lid lock release pin of the cassette 6 is pushed by the shutter 4.

[Problem that the invention seeks to solve]

In conventional cassette storage devices, when the cassette is inserted into a fixed position, the cassette is loaded and stored, but depending on the cassette's posture and the amount of back and forth, the cassette must be loaded to a specified position and then ejected, which is a wasteful operation. It was a problem.

This invention was made to solve the above problems, and is provided with a device that detects the cassette posture and front/rear position when the cassette is installed, and does not operate if the cassette is not installed at the set position. .

[Means for solving problems]

The cassette storage device according to the present invention is provided with a limit switch whose actuating part protrudes from the upper surface of the bottom to detect the posture, and connects a light emitting diode and a pair of optical sensors to the side surface of the bottom facing the guide groove for preventing incorrect insertion on the bottom surface of the cassette. The sensor is installed in the cassette to sense the position of the cassette in the front-rear direction.

[Effect]

In the cassette storage device of the present invention, when a cassette is attached to the bottom, a limit switch protruding from the top surface of the bottom is pressed by the cassette and turned on, and a light emitting diode and a light sensor prevent light passing through the cassette misinsertion prevention groove. It is sensed by an optical sensor, and loading is enabled when it is in the ON state.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, 1 is a bottom, and 7 is a limit switch that projects upward from the cassette mounting surface of the bottom 1. In the figure, two limit switches are provided. Reference numeral 8 denotes a light emitting diode provided on the inner side of the bottom 1, and 9 an optical sensor provided on the inner side of the opposite side of the bottom 1, which receives the light from the light emitting diode 8. The position of the optical path is as follows. , cassette 6
When the cassette 6 is attached to the bottom 1, the cassette 6 passes through an erroneous insertion prevention groove 10 provided in the cassette 6.

With the structure described above, when the cassette 6 is mounted on the bottom 1, it is detected that the cassette 6 is not in a floating state by pressing the limit switch 7,
The light from the light emitting diode 8 is received by the optical sensor 9 which passes through the cassette erroneous insertion prevention groove 10 and senses the position in the front and back direction.

In the above embodiment, it is preferable to use two limit switches, a light emitting diode, and a pair of optical sensors, but it is also possible to use one limit switch, one light emitting diode, and two optical sensors. An example of the configuration is explained with reference to FIG. 2. In the above-mentioned basic cassette storage device, an optical sensor 9a is provided in place of the limit switch on the front side of the magnetic recording and reproducing device, and the cassette is mounted in a predetermined position. At this time, the light sensor 9a does not receive the light from the light emitting diode 8, but the light sensor 9 receives the light, and the limit switch A is turned on.

〔Effect of the invention〕

As described above, according to the present invention, when a cassette is installed in the cassette storage device, it is easy to detect when the cassette surface is not placed on the surface of the cassette storage device or when the front and rear direction of the cassette is not at the specified position. It is effective to be able to obtain high-precision products.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention, Fig. 2 is a perspective view showing another embodiment of the invention, Fig. 3 is a front view showing a conventional cassette storage device, and Fig. 4 is a perspective view showing an embodiment of the present invention. FIG. In the figure, 1 is the bottom, 5 is the magnetic recording/reproducing device main body, 6 is the cassette, 7 is the limit switch, 8 is the light emitting diode,
9.9a is a light sensor. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] In a cassette storage device in which almost the entire body of a magnetic recording/reproducing device is exposed and a cassette can be inserted and removed from above the bottom with the widest surface of the cassette in the vertical direction, the operating part protrudes from the top surface of the bottom. A limit switch detects the vertical posture of the cassette, and
A cassette storage device characterized in that the front and rear positions of the cassette are detected by a light emitting diode and a light sensor provided on the bottom side.