JPS5821230Y2 - push button operation device - Google Patents

Description

[Detailed description of the invention] This invention is a push-button tuner used in car radios, etc.
In particular, the present invention relates to improvements in the push button mechanism of the tuner.

Push-button tuners are being improved day by day, and in recent years, they have become extremely thin.

FIGS. 1 and 2 are a plan view and a side sectional view showing the push button mechanism of this type of push button type interstage adjuster.

Reference numeral 1 in the figure is an operating lever, and by pressing the operating lever 1, a tuning lever 4 is used to move the tuning part of the push-button tuner.
, and select a desired station that has been set in advance.

Further, when the operating lever 1 is operated, it is held at the operating position by a locking plate, although not particularly shown.

Reference numeral 2 denotes an operating piece provided on the operating lever 1.

The operation piece 2 is made of a thin plate such as a copper plate, and a reinforcing protrusion 2a is formed in the longitudinal direction of the center thereof.

The tip 3 of the operating piece 2 engages with the sliding lever 5.

The sliding lever 5 slides as the operating lever 1 is pressed, and prevents manual adjustment of the push button tuner, for example, while the operating lever 1 is being operated.

Further, the sliding lever 5 is provided with a cam portion 5a that is more powerful than the inclined portion for engaging with the operating piece 2 of the operating lever 1.

Reference numeral 6 denotes a guide plate made of a thin iron plate or the like provided on one surface of the sliding lever 5;
The cam portion 5a protrudes slightly from the cam portion 5a, and prevents the cam portion 5a from disengaging from the operating piece 2.

In the conventional device as described above, a guide plate 6 is applied to the lower surface of the sliding lever 5, and the guide plate 6 slightly protrudes from the cam portion 5a to prevent the cam portion 5a from disengaging from the operating piece 2. Although it is, the tip 3 of the operation piece 2 and the cam part 5
Since the portions a simply contact each other and slide against each other, there arises an inconvenience that the tip portion 3 comes off above the cam portion 5a.

In order to prevent this, a guide plate may be provided on the upper surface of the slide lever 5, but this has the disadvantage that not only the structure becomes complicated but also the thickness of the push button type tuner increases.

The present invention is a new invention that improves the above-mentioned drawbacks of the conventional technology.The purpose of this invention is to provide a thin push button type tuner in which the tip of the operating piece connected to the push button slides into contact with the cam part of the sliding lever. The object of the present invention is to provide a structure in which the cam part and the tip of the operating piece do not become disengaged when the operating piece slides the sliding lever, and the structure does not increase the thickness of the push-button tuner. It is to do so.

Next, one embodiment of the present invention will be described in detail using the drawings.

In FIGS. 3 and 4, 11 is an operating lever;
In this embodiment, six pieces are arranged in parallel in the horizontal direction.

A push button 12 is attached to the tip of each operating lever 11, and by pressing this push button 12, the operating lever 1
1 moves in the direction of arrow A and is locked in the pressed position by a locking mechanism (not shown), and when another push button 12 is pressed, this lock is released and the operating lever 11, which had been pressed until now, protrudes. .

Reference numeral 13 denotes a tuning lever for moving the tuning part of the push-button tuner, which moves in conjunction with the pressing movement of the operating lever 11 to select a desired station that has been set in advance. .

Reference numeral 14 designates an operating piece fixed to the operating lever 11, and is reinforced by providing a convex shape 14a.

A sliding protrusion 14b is formed at the tip of the operating piece 14.

15 is a sliding lever. The sliding lever 15 is supported so as to be slidable in a direction perpendicular to the moving direction of the operating lever 11, and is always biased in the direction of arrow B.

The sliding lever 15 is provided with six cam pieces 15a corresponding to the operating lever 11, and the cam piece 15a is formed with a cam portion 15b that is inclined with respect to the moving direction of the operating lever 11.

As shown in FIG. 5, a shallow groove 15c is formed on the side surface of the cam portion 15b, and a sliding protrusion 14b is inserted into this groove 15c.
are mated.

Next, the operation of the present invention will be explained.

When the desired push button 12 is pressed from the state shown in FIG.
The operating lever 11 is pressed and moved in the direction of arrow A.

As the operating lever 11 moves, the sliding protrusion 14b also moves, so the sliding protrusion 14b presses the cam portion 15b of the sliding lever 15 and moves the sliding lever 15 in the direction of arrow C. .

When the operating lever 11 is locked in the suppressed state, the sliding lever 15 is also held at the fully moved position in the direction of arrow C, locking the manual tuning operating mechanism of the push button tuner, but also preventing other operations. You can also have them run together.

If you want to select another preset station, press the other push button and lock the control lever in the same way as above. Return to position.

In addition, in order to carry out a manual tuning operation, when all the operating levers are unlocked and returned to their original positions, the sliding lever 15 also returns to the state shown in FIG. 3 by the force of a bias member (not shown). .

As explained in detail above, in the present invention, a groove is provided in the cam portion of the cam piece of the sliding lever, and the sliding protrusion of the operating piece is fitted into the groove, so that the operating lever can be pressed. When the sliding lever is operated, the sliding protrusion does not come off from the cam part, and the operation of the operating lever can be ensured and the reliability of the operation can be improved.

In addition, as mentioned above, since the sliding protrusion does not deviate from the cam part during operation, there is no need to provide a guide plate that was provided in the conventional device, and the push button tuner can be further made thinner. This has various effects such as a reduction in the number of parts and cost reduction.

[Brief explanation of the drawing]

1 and 2 are a plan view and a side sectional view of a conventional device, FIGS. 3 and 4 are a plan view and a side sectional view showing an embodiment of the present invention, and FIG. 5 is a slider according to the present invention. FIG. 3 is a partial perspective view of the movable lever. In the figure, 11 is an operating lever, 12 is a push button, 13 is a channel selection lever, 14 is an operating piece, 14a is a protrusion, 14b is a sliding protrusion,
15 is a sliding lever, 15a is a cam piece, 15b is a cam part,
15c is a groove.

Claims (1)

[Scope of utility model registration request] In a push button operating device having at least an operating lever to which a push button is attached and a sliding lever moved by the operating lever, a groove is formed in a cam portion of a cam piece provided on the sliding lever, and a groove is formed in a cam portion of a cam piece provided on the sliding lever. A push button operation characterized in that a sliding protrusion of a provided operating piece is fitted into the groove, and when the operating lever is operated, the sliding protrusion slides in the groove to move the sliding lever. Device.