JPH0127544Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a switch selection device that selects the switching of a switch by means of a slide piece brought into contact with the operating rod of the switch. This invention relates to a switching selection circuit that is optimal for turning on and off a frequency fine tuning circuit.

Generally, as shown in FIGS. 1A and 2B, the switch switching selection device first closes the lid 4 with respect to the actuating rod 3 of the switch 2 fixed to a base plate 1 such as a chassis. As shown in FIG. 1A, the slide piece 5 is brought into contact and activated to activate the AFT circuit of the television receiver or video tape recorder (VTR), while the lid body 4 is opened as shown in FIG. 1B. In this state, the operating rod 3 of the switch 2 is in the upper position, rendering the AFT circuit inactive,
Adjust the preset tuner and preset it to receive a predetermined station. Furthermore, as shown in FIG. 2, slide the slide piece 5 in the direction of arrow A.
In order to keep the AFT circuit inactive regardless of whether the lid 4 is opened or closed, a configuration is adopted in which the protrusion 6 of the slide piece does not come into contact with the operating rod 3 of the switch 2. In the figure, 7 is the main body of the cabinet.

In the conventional switch switching selection device having such a configuration, as shown in FIGS. 3 and 4, an opening-shaped peripheral wall 8 is provided on the inner surface of the lid 4 , and a pair of opposing sides are provided on the two sides of the peripheral wall 8. With a structure in which locking pieces 9, 9 are provided, the peripheral wall 8
The projection 6 of the slide piece 5 is press-fitted into the locking piece 9 by using the elasticity of the locking pieces 9 and the elasticity of the slide piece 5 .
Similarly to the operations shown in Figure 1 A and B,
The AFT circuit is turned on and off, and the peripheral wall 8
Slide the slide piece 5 inside the second
As explained in the figure, regardless of whether the lid body 4 is opened or closed, the AFT
Keep the circuit inactive at all times.

However, in the configuration shown in FIG. 3, when the lid body 4 is molded from synthetic resin, notches 10, 10 are not necessarily required for the punching mold corresponding to the locking pieces 9, 9, and Since the notches 10, 10 appear on the front side of the lid, additional parts were required to cover them.

The present invention provides a novel switch selection device that eliminates the above-mentioned drawbacks.The following description will be made with reference to the drawings. FIGS. 5 to 7 show the same device of the present invention, and FIG. FIG. 6 is a perspective view, and FIG. 6 is a sectional view of a main part of the lid, and FIGS.

First, when the lid body 4 is molded from synthetic resin, a fitting wall 11 is formed in a U-shape on the inner side, and two pairs of locking pieces 12, 12 and 13, 13 are formed on the opposite side of the fitting wall 11.
are integrally molded. If this molding is performed using a slide mold on the opening side 14 of the fitting wall 11, no notch will appear in the lid body 4 .

Next, insert the slide piece 5 in the direction of the dashed line arrow, that is, hold the protrusion 6, slide the slide piece 5 first into the locking pieces 12, 12, and push the protrusion 15 past the locking pieces 13, 13. When it is slid, it is set to the first position as shown in FIG. 7A.

At this time, the protrusion 15 is pressed downward by the locking pieces 12, 12 as shown by the arrow in FIG. It is in contact with the stopper pieces 12, 12.

Next, when the slide piece 5 is moved to the right, it is set to the second position as shown in FIG.
9 is pressed by the locking pieces 13, 13, and the tip of the slide piece 5 comes into contact with the closing part 20 of the fitting wall 11.

Therefore, if the first position is the position shown in FIG. 1 and the second position is the position shown in FIG .
In the second position, the AFT circuit is set to be inactive or inactive, regardless of whether the lid 4 is opened or closed.

Next, when replacing the slide piece 5 due to damage, remove the slide piece 5 by going beyond the closed end 20 contrary to the above-mentioned fitting and insert a good slide piece, or As long as the protrusion 15 and the retaining portion 18 are slid over the slider 13 and 13, a good slide piece may be inserted in the same manner as described above.

As described above, according to the present invention, since the U-shaped fitting wall is provided on the inner surface of the lid body, when molding with synthetic resin, there is no notch as in the conventional case, so separate parts, e.g. There is no need to cover the front side with a decorative plate or the like, and there is also an advantage that the slide piece can be securely held by the two pairs of locking pieces.

[Brief explanation of the drawing]

Figures 1A, 2B and 2 are sectional views of essential parts for explaining the switch selection device of the present invention, Figures 3 and 4 are perspective views of the conventional device, and Figures 5 to 7.
Figures A and B show the device of the present invention, Figure 5 is an exploded perspective view, Figure 6 is a cross-sectional view of the main part of the lid, Figure 7 A,
B is a sectional view of the main part in a state where the slide piece is attached to the lid body. Explanation of main drawing numbers: 1 ... Board, 2 ... Switch, 3... Operating rod, 4 ... Lid, 5 ... Slide piece, 6... Protrusion, 7 ... Cabinet body, 11
... Fitting wall, 12, 13 ... Locking piece, 15 ... Protrusion, 18 ... Removal prevention part.

Claims (1)

[Scope of Claim for Utility Model Registration] A switch 2 fixed to a substrate 1 such as a chassis in a cabinet body 7, a lid body 4 rotatably provided on the cabinet body 7, and this lid body 4
a slide piece 5 provided on the inner surface of the slide piece 5; and a protrusion provided on the slide piece 5 located in at least two positions, a position in which it comes into contact with the operating rod 3 of the switch 2 when the lid body 4 is closed, and a position in which it does not come into contact with the operating rod 3 of the switch 2. 6, the opening 1 is integrally provided on the inner surface of the lid 4.
4, two pairs of L-shaped locking pieces 12, 12, 13, 13 provided along the fitting direction of the fitting wall 11, and the slide piece. 5, and is held in two positions: between the two pairs of locking pieces 12, 12, 13, 13, and between one of the locking pieces 12, 12 and the closing portion 20 of the fitting wall 11. A switch switching selection device comprising: a protrusion 15;