JPH0546306Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a switch operation panel mounted on the front surface of, for example, audio equipment.

``Prior Art'' Generally, in audio equipment such as a car stereo, a switch operation panel for opening and closing a switch provided on the front of the equipment body is attached to the front face of the equipment body. Such an operation panel has a switch knob for pressing each switch attached to a panel frame attached to the front of the device so that it can be pushed in and returned to its original position. Conventionally, it has been common practice to elastically fit the claws into mounting holes formed in the panel frame.

``Problem to be solved by the invention'' However, as mentioned above, when the switch knob is attached to the panel frame by elastically fitting the claw provided on the switch knob into the mounting hole formed in the panel frame, However, when assembling the operation panel or attaching the operation panel to the main body of the device, the switch knob may fall off the panel frame, resulting in poor workability. The drawback was that the elastic force of the claws weakened, causing the switch knob to come off the panel frame.

Additionally, in the above case, the switch knob attached to the panel frame was prone to wobbling and lacked a sense of luxury.

The present invention was developed in view of the above circumstances, and its purpose is to provide a switch operation panel that can prevent the switch knob from falling off from the panel frame and also prevent the switch knob from wobbling. It is in.

``Means for Solving the Problems'' The present invention provides a panel frame that is attached to cover the front surface of the device body so that a switch knob for operating a switch provided on the front surface of the device body can be pushed and returned. In the switch operation panel that can be attached, a plurality of the switch knobs are attached adjacent to each other on the peripheral edge of the front side of the panel frame so that the wall of the switch knobs covers the peripheral end surface of the panel frame, Each of the switch knobs is provided with a shaft portion that passes through an opening formed in the panel frame and is located on the back side of the panel frame when the switch knob is attached to the panel frame. It is characterized in that each switch knob is rotatably supported around the shaft portion.

"Function" In the switch operation panel of the present invention, the switch knob is attached to the panel frame by rotatably supporting the shaft portion provided on the switch knob on the back side of the panel frame. When pressed, the switch knob rotates to open and close the switch, and also prevents the switch knob from rattling.

``Example'' Below, an example of the present invention is shown in Figures 1 to 11.
This will be explained with reference to the figures.

FIG. 1 is a front view showing a schematic configuration of an operation panel 1 of this embodiment, and FIG. 2 is a cross-sectional plan view thereof. This operation panel 1 is attached to cover the front surface of a device main body 2 such as a car stereo, and reference numeral 3 in the figure indicates a chassis of the device main body 2;
5 is a display device such as a liquid crystal display board attached to the printed circuit board 4; and 6 is a switch provided vertically on both side edges of the printed circuit board 4.

Further, the operation panel 1 of this embodiment includes a panel frame 10 attached to the chassis 3, and a plurality of panels (in the illustrated example Switch knob 1 (5 pieces each)
1. A transparent display board 12 attached to the center of the panel frame so as to be located on the front side of the display device 5, and a panel frame corresponding to various switches (not shown) attached to the lower part of the printed circuit board 4. 10 and a switch knob 13 attached to the lower part thereof.

Note that the surface of the display board 12 is gently curved as shown in FIG. Also,
The switch knob 13 at the bottom of the panel frame 10 has been attached using a conventional structure, so a description thereof will be omitted.

As shown in detail in FIGS. 3 to 5, the switch knob 11 attached to both side edges of the panel frame 10 has a rectangular shape in front view due to the surface portion 15 and four wall portions 16a to 16d. It is hollow with an open bottom, and its cross-sectional shape is such that the surface portion 15 of the switch knob 11 and the surface of the display plate 12 form a continuous surface, as shown in FIG. As shown, the thickness of the panel frame 10 becomes gradually thinner toward the outer circumference of the panel frame 10.

Furthermore, when the switch knob 11 is attached to the panel frame 10, the wall portion 16a located on the outer peripheral side thereof extends toward the device main body 2 side than the other wall portions 16b to 16d. 11 is in a state where the peripheral end surface 10a of the panel frame 10 is covered by the wall portion 16a as shown in FIG. It is adapted to be attached to the panel frame 10.

A protrusion 17 is provided on the inner surface of the wall portion 16a, and a claw portion 18 is formed at the tip (lower end in FIG. 3) of the protrusion 17.

In addition, the wall portion 16a of this switch knob 11
On the wall portion 16b facing the L-shaped shaft mounting portion 1
A shaft portion 20 is provided through the shaft portion 9, and these shaft portions 20
This switch knob 11 is attached to the panel frame 11.
When attached to the front side of the panel frame 10, it passes through an opening 26 (described later) formed in the panel frame 10 and is located on the back side of the panel frame 10. At that time, the axis of the shaft portions 20 is panel frame 1
It is made to be almost parallel to the periphery of 0.

Further, the switch knob 11 is provided with a protruding operating rod 21 for opening and closing the switch 6.
A spring receiving portion 22 is formed integrally with the operating rod 21 at the base side portion of the operating rod 21.

The mounting structure of the switch knob 11 to the panel frame 10 is shown in FIGS. 6 to 1.
This will be explained with reference to FIG.

FIG. 6 is an enlarged view of the back side of the peripheral edge part (the part shown in FIG. 1) of the panel frame 10, and FIG. 7 is a cross-sectional view thereof. An opening 25 is provided at each mounting position, and the opening 25
An L-shaped opening 26 through which the shaft portion 20 and shaft mounting portion 19 of the switch knob 11 can pass is provided on the display panel 12 side (left side in the figure), and furthermore, on the left side thereof, an L-shaped opening 26 is provided that is formed around the switch knob 11. Convex portion 27,2
8 and 29 form a shaft support portion 30 which is relatively recessed.

Further, a groove 31 that can be engaged with the protrusion 17 of the switch knob 11 is cut out and formed in the peripheral end surface 10a of the panel frame 10, and a groove 31 that can be engaged with the protrusion 17 of the switch knob 11 is formed around the groove 31 on the back surface of the panel frame 10. A locking portion 32 to which the portion 18 is locked is formed. Note that the reference numeral 33 is a screw hole for fixing a leaf spring 40 (described later) to the panel frame 10.

The switch knob 11 is attached to the panel frame 10 above.
To attach the switch knob 11 to the front surface of the panel frame 10 as shown in FIG. is guided to the back side of the panel frame 10, and then the switch knob 11 is moved toward the display panel 12 side (left side in the figure) and the shaft portion 20 is guided as shown in FIGS. 8 and 9.
is located within the shaft support portion 30. As a result, the protrusion 17 engages with the groove 31, and the claw portion 18 engages with the locking portion 32.
The tip of the operating rod 21 is inserted through the opening 25.

Next, as shown in FIGS. 10 and 11, the leaf spring 40 is attached to the back side of the panel frame 10 with
Fixed by 1. The leaf spring 40 has a base 42
When the leaf spring 40 is fixed to the back side of the panel frame 10, the shaft portion 20 of the switch knob 11 is attached to the base portion 42 of the leaf spring 40 within the shaft support portion 30. and a panel frame 10,
At the same time, the tip of the elastic piece 43 is connected to each switch knob 11.
It is adapted to engage with the spring receiving portion 22 of.
As a result, the switch knob 11 is urged by the elastic piece 43 in a direction away from the panel frame 10 (in the return direction, upward in FIG. 11), and its claw portion 18 is locked with the locking portion 32 It is maintained in this state (the state shown in FIG. 11A) and will no longer fall off from the panel frame 10.

If the panel frame 10 to which each switch knob 11 is attached as described above is attached to the front of the device main body 2, the tip of the operating rod 21 will naturally be connected to the switch 6.
When the switch knob 11 is pressed, the switch knob 11 rotates slightly around the shaft 20 to open and close the switch 6, as shown in FIG. The switch knob 11 is rotated in the opposite direction by the biasing force of the elastic piece 43 of the spring 40 and immediately returns to its original position.

As explained above, in the operation panel 1 having the above configuration, the switch knob 11 is provided with the shaft portion 20, and the shaft portion 20 is rotatably supported on the back side of the panel frame 10, so that the operation panel 1 has the same structure as the conventional operation panel. There is no risk that the switch knob will easily come off from the panel frame, and therefore there is no need to assemble the operation panel 1 itself or to remove it from the main body of the device.
This has the advantage that it is easy to attach the device to the device.

In addition, since the shaft portion 20 of the switch knob 11 is attached to the panel frame 10 by supporting it on the shaft support portion 30, rattling of the switch knob 11 is effectively prevented and a sense of luxury can be obtained. Since the protrusion 17 and the groove 31 are engaged with each other, the rotation of the switch knob 11 is guided by them, and the position of each switch knob 11 is regulated by them, so that the switch knobs that are adjacent to each other are It is also possible to prevent malfunctions caused by 11 coming into contact with each other.

In this case, the shaft portion 20 provided on the switch knob 11 is hidden behind the panel frame 10, and the protrusion 17 and the groove 31 that engages with the protrusion 17 are hidden behind the switch knob 11. They are not exposed and a desirable design can be obtained.

In the above embodiment, five switch knobs 11 are provided on each side edge of the panel frame 10, but similar switch knobs with a similar structure may also be provided on the upper and lower edges of the panel frame 10. Of course, the number of switch knobs may be arbitrary.

Further, the shape of the switch knob 11 may be freely changed. For example, as shown in FIG. It has the advantage of making it difficult for your fingers to slip when you press it.

"Effects of the Invention" As explained in detail above, the present invention is such that the switch knobs are installed side by side on the peripheral edge of the panel frame so that the wall of the switch knobs covers the peripheral end surface of the panel frame. Since the shaft is rotatably supported on the back side of the panel frame, it is possible to prevent the switch knob from falling off from the panel frame, and it is also possible to prevent the switch knob from rattling.As a result, assembly work is simplified. This has the excellent effect of making it easier to use and giving a sense of luxury.

[Brief explanation of the drawing]

1 to 12 are diagrams showing embodiments of the present invention. Fig. 1 is a front view of the operation panel of one embodiment, Fig. 2 is a plan sectional view, Figs. 3 to 5 show the shape of a switch knob on the operation panel of one embodiment, and Fig. 3 is a side view. 4 is a back view, FIG. 5 is a perspective view, and FIGS. 6 to 11 are views for explaining the mounting structure of the switch knob to the panel frame. FIG. 7 is a back view of the panel frame in the section, FIG. 7 is a view taken along the - line in FIG. 6, FIG. figure,
Fig. 10 is a back view of the panel frame with a leaf spring attached, and Fig. 11 is a view taken along the line XI-XI in Fig. 10, where A shows the normal state and B shows the switch knob. It is a figure which each shows a pressed state. FIG. 12 is a plan sectional view showing another example of the operation panel of the present invention. 1...Switch operation panel, 2...Device main body,
6...Switch, 10...Panel frame, 11
...Switch knob, 16a...Wall part, 17...Protrusion, 18...Claw part, 19...Shaft mounting part, 20...
Shaft part, 21... Operating rod, 22... Spring receiving part, 2
6...Opening part, 30...Shaft support part, 31...Groove,
32... Locking portion, 40... Leaf spring, 42... Base, 43... Elastic piece.

Claims (1)

[Scope of utility model registration request] A switch operation panel in which a switch knob for pressing a switch provided on the front surface of the device body is attached to a panel frame mounted to cover the front surface of the device body so as to be pushable and returnable; A plurality of switch knobs are attached adjacent to each other to the peripheral edge of the front side of the panel frame so that the wall of the switch knobs covers the peripheral end surface of the panel frame, and the switch knobs are attached to the panel frame. Sometimes, each switch knob is provided with a shaft portion that passes through an opening formed in the panel frame and is located on the back side thereof, and these shaft portions are rotatably supported on the back side of the panel frame. A switch operation panel characterized by being rotatable around a shaft.