JPS6121870Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a push button tuner, particularly to the structure of a push button (preset knob).

A push-button tuner commonly used in car radios and the like tunes to a preset frequency when a predetermined push button is pressed, making it possible to select a desired station with a single touch. To preset the desired frequency for a given pushbutton, pull the pushbutton (preset knob) forward from the tuner body, and in the meantime operate the adjustment dial to set the tuner to the desired frequency. Thereafter, each time the push button is pressed, it is tuned to the frequency that was set when the push button was pulled out.

However, this type of pushbutton tuner has a drawback in that it is difficult to pull out the pushbutton during presetting due to mounting position and other restrictions. That is, in conventional tuners, the push button is pulled out by placing the fingertip on the push button protruding from the front of the receiver.
In the case of a tuner for a car radio or the like, depending on the shape of the vehicle in which it is installed, there may not be enough space to fit a finger above or below the push button, which significantly impairs operability. In particular, recently, in order to reduce the number of protrusions on the front of car radios, etc., as much as possible for vehicle safety reasons, the front end of push button a is prevented from protruding beyond the surface of panel b on the vehicle side, as shown in Figure 1. Since a car radio or the like is installed in a vehicle, it is extremely difficult to operate the pull-out button using a conventional push button.

Therefore, as shown in Fig. 2, a method has been proposed in which a jig d with a key-shaped locking part c is held at the tip of the finger and the push button a is pulled out using the jig d. The use of such a dedicated jig has the disadvantage of requiring complicated management of the jig, such as storage space when not in use and prevention of loss.

The present invention was proposed to solve the above-mentioned drawbacks of the conventional push button tuner, and its purpose is to provide a groove-shaped engagement part on the front surface of the push button, and to improve the volume and sound quality. By hooking a protrusion formed on a round button-shaped knob attached to a push-button tuner for the purpose of tuning etc. into this engaging part, the pull-out operation during presetting can be easily performed. The purpose of this invention is to provide a "push button tuner" with

Next, the present invention will be specifically explained based on the embodiments shown in FIG. 3 and below.

In the figure, reference numeral 1 denotes a pushbutton tuner main body, 2 a arm protruding from the front thereof, and 3 a pushbutton attached to the front end of this arm 2. A groove-shaped engagement portion 4 recessed toward the back side of the push button 3 is formed on the front surface of the push button 3 . On the other hand, 5 is a round button-shaped knob, and this knob 5 is usually attached to the tuner main body 1 for adjusting volume, tone, and others. A protrusion 6 that functions as a pointer is formed on the outer periphery of the knob 5, and the engaging portion 4 has a size such that the protrusion 6 can be inserted into the engaging portion 4.

Since the pushbutton tuner of the present invention has the above-described configuration, in order to pull out the pushbutton 3 when presetting the frequency, first remove the round button-shaped knob 5 from the tuner body 1, and then remove the protrusion 6. into the engaging part 4 of the push button 3. Then, the knob 5 is pried diagonally to engage the protrusion 6 with the wall surface of the engaging portion, and in this state, the knob 5 is pulled toward the user to pull out the push button 3.

As mentioned above, in the push button tuner of the present invention, the protrusion of the round button knob is hooked on the engaging part provided on the front surface of the push button tuner to pull the push button toward you. Even if it is installed in the back, it has the effect of making it easy to pull out during presetting. In particular, since the round button knob attached to the tuner is used for adjusting volume, tone, etc., without using a special jig when pulling out the drawer, there is no need to worry about loss of jig or management problems like with conventional models. This has the advantage of eliminating

Incidentally, the shape of the engaging portion is not limited to that shown in the drawings; for example, if the tip of the protrusion is bent into a key shape, the engaging portion may also be shaped into a groove with a key-shaped cross section. , can be changed as appropriate according to the shape of the protrusion of the round button type knob.

[Brief explanation of the drawing]

Fig. 1 is a side view showing how the pushbutton tuner is mounted on a vehicle, etc. Fig. 2 is a perspective view of a conventional pushbutton, and Fig. 3 is a longitudinal section showing an embodiment of the pushbutton tuner of the present invention. 4 are perspective views showing a push button and a corresponding round button knob. 1... Tuner main body, 2... Bracelet, 3... Push button, 4... Engaging portion, 5... Round button type knob, 6
……protrusion.

Claims (1)

[Scope of utility model registration request] A protrusion is formed on the outer periphery of a round button-shaped knob that is removably attached to the pushbutton tuner, and an engaging portion large enough to engage with the protrusion is provided on the front surface of the pushbutton. Features a push button tuner.