JPH0138838Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching device including a rotary switch, and is suitable for use as channel selection means in a wireless communication device, for example.

A wireless communication device is provided with a channel changeover switch for changing the communication frequency. In this case, a toggle switch is usually used for a two-channel type, but a rotary switch is used for three or more channels. By the way, the rotary switch knob displays, for example, 8 channels, but if only 1 to 5 of them are used due to customer requests, the remaining 6 to 8 channels may be operated incorrectly. To prevent this, it is necessary to prevent the knob from rotating.

Therefore, the purpose of this invention is to provide a restricting means that prevents the knob from rotating to unnecessary switching positions when not all of the switching positions provided on the rotary switch are used as described above. An object of the present invention is to provide a switching device having the following features.

Hereinafter, this invention will be described in detail with reference to embodiments shown in the accompanying drawings.

As shown in FIG. 1, the switching device according to this invention is equipped with a known rotary switch 1. In this embodiment, the rotary switch 1 is, for example, an operation panel 2 of a portable wireless communication device.
It is designed to be installed in Operation panel 2
A through hole 4 is bored through the rotary switch 1 through which the rotating shaft 3 of the rotary switch 1 is inserted, and a knob 5 is fitted onto the end of the rotating shaft 3. Note that the rotating shaft 3 and the knob 5 are connected to rotate together, for example, by serration connection. In this invention, the knob 5 is provided between the knob 5 and the operation panel 2.
That is, a regulating means for regulating the rotation range of the rotary switch 1 is provided. This regulating means consists of a plurality of pins 6 provided on the bottom side of the knob 5 and a groove 7 formed on the operation panel 2 side, and the relationship between them will be explained with reference to FIG. 2.
In the same figure, the numbers 1 to 8 channels are shown on the front side of the knob 5, and correspondingly, eight pins 6a to 6h are arranged on the bottom side of the knob 5 at intervals of, for example, 30 degrees. They are arranged on the same circumference around the axis of rotation. Note that these pins 6 are preferably formed integrally with the knob 5 when it is manufactured, for example, by injection molding of synthetic resin. on the other hand,
The groove 7 is formed approximately so as to correspond to the arrangement of each pin described above.
It is formed in an arc shape over a range of 240 degrees,
Its opposite end walls 7a, 7b are used as stoppers that cooperate with the above-mentioned pin. Note that reference numeral 8 is an indicator provided on the operation panel 2, and the above-mentioned knob 5 is connected to the rotary switch 1 with respect to this indicator 8.
It rotates intermittently with an appropriate click force by an internal mechanism.

In the above configuration, when the knob 5 is inserted into the rotating shaft 3 with the eight pins 6a to 6h implanted as shown in the figure, the first pin 6a and the eighth pin 6h and grooves 7 facing each other.
Since it will act on the end walls 7a and 7b of 30
If the rotation angle of degrees is 1 pitch, there is room to move knob 5 only 1 pitch, so channel 1 and channel 2
Channels can be selected, but 3 or more channels cannot be selected. Therefore, if you actually need channels 1 to 5 among the channels 1 to 8 above, the first, second and third pins 6a, 6b, 6
All you have to do is cut the three pieces c using a nipper or the like. Similarly,
If channels 1 to 7 are required, it is sufficient to cut from the first pin 6a to the fifth pin 6e, and finally from channel 1 to channel 8.
If all the channels up to the channel are used, all the channels from the first pin 6a to the sixth pin 6f may be cut, leaving the seventh and eighth pins 6g and 6h. In this way, the rotation range of the knob 5 can be regulated according to the required number of channels by simply cutting the pin 6 with a nipper or the like. Note that in the above embodiment, eight pins 6
While grooves a to 6h are arranged in a range of 210 degrees with an interval of 30 degrees, groove 7 is formed in an arc of a range of 240 degrees with a margin of 1 pitch. The arc may also be 210 degrees.
Of course, in this case, the number of pins to be cut is one more than in the above embodiment. That is,
When using the first channel to the fifth channel, a total of four pins, the first pin 6a to the fourth pin 6d, will be cut. In some cases, the groove 7 may not be provided in the operation panel 2, and stopper plates 9a and 9b as shown in FIG. 3 may be installed at positions corresponding to the end walls 7a and 7b. good. Furthermore, the pin 6 is provided on the operation panel 2 side, and the groove 7 or the stopper plates 9a, 9b are connected to the knob 5.
The design can also be changed so that it is installed on the side. On the other hand, this invention is not limited to the above-mentioned channel changeover switch of a wireless communication device, but can also be applied to, for example, a range changeover switch of a measuring instrument.

As is clear from the above, according to this invention, the rotation of the rotary switch can be regulated within the required range by a simple operation of cutting the pin, and is extremely practical.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing an embodiment of this invention, FIG. 2 is a diagram for explaining the operation of this invention, and FIG. 3 is a perspective view showing another embodiment. In the figure, 1 is a rotary switch, 2 is an operation panel, 3 is a rotating shaft, 4 is a through hole, 5 is a knob, 6 is a pin, 7 is a groove, 7a and 7b are end walls, and 9a and 9b are stopper plates. .

Claims (1)

[Claims for Utility Model Registration] (1) An operation panel, a rotary switch having a rotation shaft that is attached to the operation panel through the operation panel, a knob fitted to an end of the rotation shaft, the knob and the rotation regulating means formed between the knob and the operation panel, the rotation regulating means having a predetermined interval on the same circumference around the rotation axis on either the knob or the operation panel. a stopper member formed in association with each of a plurality of pins that are cuttable and dotted with each other, and two pins that are disposed at both ends of the plurality of pins on either the knob or the operation panel; A switching device comprising: (2) Utility Model Registration The switching device according to claim (1), wherein each of the pins is a synthetic resin pin integrally formed on either the knob or the operation panel. (3) In claim (1) of the utility model registration, the stopper member is formed from an end wall of a groove formed in an arc shape with a depth that allows the ends of the plurality of pins to fit into each other. A switching device characterized by: (4) Utility Model Registration The switching device according to claim (1), wherein the stopper member comprises a stopper plate embedded in either the knob or the operation panel.