JPS6037785Y2 - Changeover switch device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a change-over switch device, and is extremely suitable for application to change-over switch devices for radios, tape recorders, etc., for example.

Conventionally, in changeover switch devices for radios, tape recorders, etc., in order to rotatably mount the changeover operation lever of such a changeover switch, the fulcrum hole of the changeover operation lever is inserted into a boss planted on the board. After that, I used a screw with a washer to stop it from coming out.

Therefore, in the past, not only the number of parts increased, but also the assembly work required a great deal of effort.

Furthermore, if the rejection switch is installed relatively far from the switching lever, a separate linking member is required to connect the rejection switch and the switching lever, which further complicates the assembly process. Met.

For example, in the case where a plurality of changeover switches are respectively switched by a plurality of changeover operation levers, support bosses are provided for each of the changeover operation levers to be rotatably attached to the circuit board, and a washer is provided for each of the changeover operation levers. It is necessary to prevent removal with the attached screw, which makes it more difficult to reduce the number of parts in the design and also requires a large amount of assembly man-hours. Similarly, when moderation means were provided opposite to each switching operation lever in order to selectively switch a plurality of changeover switches to at least two or more different positions, the results were similarly unsatisfactory.

The present invention has been devised in view of these points, and has an extremely simple configuration that makes it possible to eliminate the number of parts and assembly man-hours of such a changeover switch device, and to simplify the assembly process. This is what I did.

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

In the figure, 1 is a cabinet, and 2 has an operating knob 4 protruding from an operating hole 3 of the cabinet at one end thereof, and a connecting shaft 5 that fits into a connecting hole of a relay lever to be described later at the other end. The switching operation lever ~2 further has a rotation hole 6 formed in its center, and is rotatably supported via the rotation hole 6 on a support boss of a fixed board, which will be described later. has been done.

Reference numeral 7 denotes a fixed base plate having a support boss 8 having a step at its tip and guide pieces 9, 9, and the switching operation lever 2 is rotatable through the rotation hole 6 in the large diameter portion 8a of the support boss 8. A mounting board, which will be described later, is fitted into the small diameter portion 8b of the switching operation lever 2 in order to restrict the axial position of the switching lever 2 (that is, to prevent it from being removed).

Reference numeral 10 denotes a relay lever having a connecting hole 11 that fits into the connecting shaft 5 of the switching operation lever 2.
9 guides its movement direction, and when the switching operation lever 2 is operated, it slides in the direction of arrow A-A' due to the mechanical coupling relationship with the switching operation lever 2 through the connecting shaft 5 and the connecting hole 11. The switch is operated to switch the operator of a changeover switch, which will be described later.

In order to prevent the switching operation lever 2 from being removed, one end 14a thereof is connected to a small diameter portion 8b at the tip of the support boss 8.
A changeover switch 15 capable of switching at three points is mounted on the installation board 14, and the operator 16 of the changeover switch 1 is adapted to follow the movement of the relay lever 10. It is fitted into the operation hole 17 of the relay lever 10 and connected to the relay lever 10.

Further, a moderation boss 18 is formed on the fixed base plate 7 in order to operate the switching operation lever 2 in a moderation manner, and the moderation boss 18 is formed in a recess 19 thereof as shown in FIG.
A moderation spring 20 and a moderation ball 21 are respectively fitted in the moderation spring 20 and moderation ball 21, and the switching operation is performed by elastically fitting the balls 21 into the depressions 22a+22bt 22c of the moderation section provided on the switching operation lever 2, respectively. Lever 2
It has a moderation effect.

Therefore, by selectively switching the switching operation lever 2, the changeover switch 15 can be selectively switched to three points via the relay lever 10 that is mechanically connected to the switching operation lever 2. I can do it.

Since the device of the present invention is configured as described above, there is no need for special fixing fittings or members when assembling the device, and the relay lever 10 is attached to the fixed board 7 together with the switching operation lever 2 and the mounting board 14. The so-called changeover switch 15 can be fitted in a stacked manner sequentially from the left side as shown in Fig. 1, which not only reduces the number of parts but also simplifies assembly and improves work efficiency. .

Incidentally, as an embodiment of the present invention, a case has been described in which the changeover operation lever and the changeover switch are each single, but there is no problem even if there are a plurality of them.

For example, when there are two switching operation levers as shown in FIGS. 5 to 7, an additional switching operation lever 2' is fitted into the support boss 8 following the switching operation lever 2, and the same applies. An additional relay lever 10 is added to the switching operation lever 2'.
', and then the mounting board 14 and the changeover switch 15, and the additional mounting board 14' and the changeover switch 15' are fitted together in a stacked manner from the left side as shown in FIG. I can do it.

It should be noted that a moderation boss 18' that imparts a moderation effect to the additional switching operation lever 2' is provided in series with the moderation boss 18 through the relief hole 2a of the switching operation lever 2 on the fixed base plate 7. There is.

Further, as a specific embodiment of such a changeover switch device, for example, the mounting board 14 and its changeover switch 15 are respectively a tuner board and a band changeover switch (AM, FMXSW), and the mounting board 14' and its changeover switch 15' are can be used as an amplifier board and a mode changeover switch (tape, radio, sleeve), respectively, and each changeover operation lever 2, 2' can be used for band changeover and mode changeover, respectively.

As mentioned above, according to the device of the present invention, the position of the switching operation lever is restricted (i.e., prevented from being removed) by the mounting board, such as the tuner board or the amplifier board, due to its configuration, so special special measures are not required. Fixing hardware (i.e. mounting screws, etc.)
Since the assembly can be performed consistently and sequentially from a certain direction, the assembly of the changeover switch device can be simplified and made more efficient, which has the effect of lowering the price. It also has great practical value, such as improved productivity.

[Brief explanation of drawings]

The figures show the present invention; FIG. 1 is a schematic side sectional view, FIG. 2 is a schematic back view, FIG. 3 is a schematic bottom view, FIG. 4 is a sectional view of the main parts, and FIGS. 7 shows another embodiment of the present invention, FIG. 5 is a schematic side sectional view thereof, FIG. 6 is a schematic rear view thereof, and FIG. 7 is a schematic bottom view thereof. 2.2'...Switching operation lever, 4,4'...
...Operation knob, 5,5'...Connection shaft, 6,6
'...Rotation hole, 7...Fixed board, 8.
...Support boss, 9,9...Guide piece, 10
, 10'... Relay lever, 14, 14'...
... Mounting board, 15, 15'... Changeover switch, 16, 16'... Operator, 18, 18'...
...Moderation boss, 22, 22'...Moderation part.

Claims (1)

[Scope of utility model registration request] a fixed substrate having a support boss and a guide piece; a relay lever whose movement direction is guided by the guide piece; and a relay lever that is inserted into the support boss and rotatably provided and mechanically connected to the relay lever. a changeover operation lever, and a changeover switch operator mounted on the top surface is connected to the relay lever so as to follow the movement of the relay lever, and the position of the changeover operation lever inserted into the support boss is regulated. 1. A changeover switch device comprising: a substrate;