JP2529525Y2 - Cassette opening and closing device for audio equipment, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a cassette opening / closing device for audio equipment such as a headphone stereo (a cassette recorder for listening with a headphone stereo) and audio / visual equipment.

<Prior art> Conventionally, a cassette opening / closing device for audio equipment and the like, as shown in FIGS. 4 and 5, has a cassette opening / closing push button 14 on the front surface of a cassette provided to be bent upward at an inner end. A hooking hole 15a is formed in the protruding portion 15, and the lower end is attached to the front surface 10a of the cassette body 10.The locking angle 12a of the lid 12 is hooked on the hooking hole 15a of the push button 14, and the closing is performed. To maintain the lid state and to return the push button, a vertically long spring 16 that constantly urges the push button outward is fixed at its lower end to the front face 10a of the cassette body 10 and the rear face of the push button. A power switch 17 for preventing the tape from being wound when the cassette tape body A is moved out of the cassette by opening the lid 12 of the cassette is provided in the cassette body. The ON / OFF operation of the switch is performed by tilting the cassette tape body A. The lid is closed by pushing down on the lid 12
a is the push button hook hole 15a against the urging force of the spring 16.
Hang on. In the figure, 10 'is a back cabinet, 11 is an operation panel cover, and 18 is a connecting portion between a cassette body and a lid.

<Problem to be solved by the invention> The above-described conventional cassette opening and closing mechanism requires time and effort to provide a power switch inside the cassette body, and a long spring for urging the push button is provided on the back of the push button. This requires a space for installation, which requires a restriction on the size of each part, which has been a factor of cost increase.

Therefore, the present invention aims to provide a cassette opening / closing device which has a simple structure, is excellent in operability, and is easy to manufacture, by eliminating the drawbacks of the prior art.

<Means to solve the problem> The present invention is a cassette that enables a thin and flexible key flexible switch as a power switch for preventing tape wrapping etc. to be turned ON and OFF by operating a push button for opening and closing the cassette. A spring for biasing and returning the push button and a pin for operating a key flexible switch are provided on the front surface of the main body and integrally formed with the push button.

<Operation> By pushing the push button of the cassette with the lid closed against the urging force of the spring, the pin integrated with the push button presses the key flexible switch to turn off the power, and releases the cassette lock to open the lid. After opening, the push button for opening and closing the cassette is returned to the original state by the spring.

<Embodiment> The present invention will be described with reference to the embodiment shown in FIGS. 1 to 3. A switch 3 is provided, and a lower end mounting base 6a of a spring 6, which is integrally formed with a pin 4a on the rear surface of a push button 4 for opening and closing the cassette and always urges the push button 4 outward, is mounted on the front surface. . In the key flexible switch 3, for example, a pair of conductor patterns are formed on a flexible substrate so as to be close to each other with a predetermined gap so that their ends face each other, and cover both conductor patterns. A hollow dome-shaped elastic body is provided, and a conductor contact (both not shown) is attached to the inner surface of the elastic body so as to face the opposite position of both conductor patterns. In response to this, the conductor contacts come into contact with both conductor patterns, so that both conductor patterns are electrically connected.

The cover 2 has a lock angle 2a fixed to the front surface corresponding to the push button 4, and the lower end bent portion thereof is supported by the support hole 5a of the protrusion 5 of the push button 4 against the urging force of the spring 6. I am trying to do it.

In the drawing, the spring 6 is provided with split grooves on both upper sides, the center portion is extended downward, and the bent lower end portion is used as a mounting base 6a. The position is forward and lower than the protruding portion 5 of the push button.
The shape of the spring is not limited to the one shown in the figure, but the formation position is low as shown in the figure, and the front is suitable for the purpose of the present invention. In the figure,
1 'indicates a back cabinet, and 1 "indicates an operation panel cover.

The operation of the cassette opening / closing device of the present invention having the above-described structure is as follows.
When the push button 4 is pressed against the urging force of the spring 6 to open the key, the pin 4a integrally formed on the back surface pushes the key flexible switch 3, and the key flexible switch is input as power OFF, and the lid 2 The lock angle 2a is disengaged from the support hole 5a, and the unlocked lid 2 is opened as shown in FIG. In this case, the timing is designed so that the power supply is turned off slightly earlier by an operation switch on the circuit or by a structure such as a pin length. As a result, winding of the cassette tape is prevented. Then, the push button 4 is returned to the original position by the urging force of the spring 6 immediately after the lock is released by operating the key flexible switch.

<Effects of the Invention> The cassette opening / closing device of the present invention having the above-described structure and operation is provided with a power switch as a key flexible switch integrated with a mechanical switch or the like on a cassette body of an audio device or the like, and a biasing spring or switch. A push button for opening and closing the cassette integrally having an operation pin is attached, and the push button is provided with a spring for urging the push button and a pin for operating the key flexible switch integrally formed on the back surface. As a result, all the components necessary for opening and closing the cassette can be provided in the front part of the cassette in a compact manner, and the push button, spring and pin, which are the main parts of the invention, are integrally formed with a simple structure and cost reduction is possible. In addition, the installation time is small, and the space for installation in the cassette is the depth of the push button. Since it is within the law, there are no dimensional restrictions on cassettes, cassette tape bodies, etc., and this is a device of great practical value.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view of the cassette opening and closing device of the present invention in a closed state, FIG. 2 is a perspective view of a main part of the same, FIG. 3 is a vertical sectional side view of the same in an opened state, and FIG. FIG. 5 is a longitudinal sectional side view of a conventional example in a closed state with the lid closed. 1 ... cassette body, 2 ... lid, 2a ... lock angle, 3 ... key flexible switch, 4 ... push button, 4a ... pin, 5a ... hanging support hole, 6 ... spring, A ... Cassette tape body

Claims (1)

(57) [Scope of request for utility model registration] The cassette body is configured such that a lid is rotatably mounted at a connection portion on the back surface thereof, and the lid is opened and closed by a push button for opening and closing the cassette on the front surface. A power switch is provided on the front surface of the cassette body. A thin and flexible key flexible switch is attached, and a spring for restoring the push button and a pin for operating the key flexible switch are protruded and attached to the back of the push button for opening and closing the cassette by integral molding. A cassette opening / closing device for audio equipment or the like, wherein a lower end of a spring is attached to a front surface of the cassette body so as to be able to be pushed.