JPH0120749Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a digital switch.

Conventionally, this type of digital switch, as shown in FIGS. 1 and 2, has a lid (L) with a window hole (A) formed therein, a shaft (C), and a digital pattern (not shown) formed on a substrate (D). The operating body equipped with the short-circuiting slider E is pivoted, and is attached so as to protrude from the side surface of the lid body B, and is connected to the teeth formed on the operating body during plastic molding of the lid body B. An engaging elastic tip is formed to position the operating body and prevent the digital pattern (not shown) from shifting from the slider. In addition, in this conventional example, since the elastic piece is formed integrally with the lid body (RO), when attaching the board (2) to the boss portions formed at the four corners of the lid body (RO) with screws, The board 2 will move by the dimensional allowance of the boss of the mounting hole through which the screw is inserted, and as a result, it will be difficult for the operating body that engages with the elastic piece to be placed in the specified position, and the digital display of the board 2 will move. There was a problem in that the contact position of the pattern with the slider on the operating body was shifted. Also,
Since there is a hole in the lid to form the elastic tip, this hole must be covered with a name plate, etc., and the operating body is made to protrude from the side of the lid, so it is difficult for children to There is a drawback that the set digital code may be switched by mistake if the operating body is rotated due to mischief or the like.

This idea was improved by paying attention to the above-mentioned circumstances, and its purpose was to prevent holes from forming in the lid body by making the elastic piece a separate part, and to prevent the nameplate from forming. This eliminates the need to use the slider, prevents the operating body from rotating due to children's mischief, and accidentally switching the digital code, and also ensures contact between the digital pattern and the slider. To provide a digital switch.

An embodiment of this invention will be described below with reference to FIGS. 3 to 6, in which it is used in a carrier wave device. Reference numeral 1 denotes a container, which is made up of a lid 3 having a pair of circular holes 2 formed therein and a container body 4. 5 is a substrate;
As shown in FIG. 5b, on the concentric circle of the through hole 6, there is a common contact 7a and a contact 7 forming a (2 ⁰ ) digit.
b, the contact 7c forming the digit of (2 ¹ ), and (2 ² )
A pair of digital patterns 7 consisting of a contact 7d forming a digit of (2 3 ) and a contact 7e forming a digit (2 ³ ) are formed in correspondence with the circular hole 2, and a hole 8 is formed between the digital patterns 7. is formed and attached to the back surface of the lid body 3. The hole 8 is a through hole 6
Holes are drilled at predetermined intervals (dimensions). Reference numeral 9 denotes an operating body, and the surface 9 has a groove 10 provided in the circular hole 2.
a boss portion 11 that is recessed below the surface 3a of the lid body 3 and is loosely fitted;
A tooth portion 12 having a diameter larger than 1 and divided into 16 equal parts,
A circular portion 13 having approximately the same diameter as this tooth portion 12 is formed in an overlapping manner, and a shaft 14 that is rotatably supported in the through hole 6 is formed on the back surface 9b, and the digital pattern 7 is sequentially shorted from 0 to 15. A slider 15 is attached by heat bonding.

The slider 15 has an arm 15a that contacts the common contact 7a of the digital pattern 7, an arm 15b that contacts the contact 7b, and an arm 1 that contacts the contact 7c.
5c, an arm portion 15d that contacts the contactor 7d, and an arm portion 15e that contacts the contactor 7e. 1
Reference numeral 6 denotes an elastic piece made of synthetic resin, and the open part 18 of the arm piece 19 is made up of a parallel part 17 and an open part 18, one end of which is formed as a free end X.
2, and the support end Y of this arm piece 19
A shaft portion 20 formed in the above is fixed to the hole 8 of the substrate 5. In this state, the open part 18 engages with the tooth part 12 and also sandwiches the circular part 13 with the base plate 5 against the elastic force of the slider 15, and the operating body 9 ...7e and the arm portions 15a...15e are held in contact with the substrate 5.

Here, in order to achieve reliable contact between the digital pattern 7 and the slider 15, by fixing the arm piece 19, that is, the elastic piece 16 on the board 5, the stopping position of the operating body 9 at the time of setting is determined. Elastic piece 16
The loosely fitted position of the operating body 9 and the operating body 9 are as shown in FIG.
The distance between the shaft portion 20 of the elastic piece 16 and the shaft 14 of the operating body 9 is determined by the distance dimension x between the hole 8 and the through hole 6. Therefore, compared to the state in which the elastic piece is located on the lid that locks the substrate in the conventional example, contact failures due to dimensional precision control and relative positional variations during assembly are less likely to occur.

21 is a resistor, 22 is a relay, and 23 is an integrated circuit, which superimposes a control signal on indoor wiring and digitally connects loads (not shown) inserted into the tooth springs 24 of multiple TVs, stereos, lighting equipment, etc. It is controlled by 16 digital codes set on the switch. 25 is an outlet, 26 is a plate, and 27 is a construction surface.

In addition, as shown in FIG. 5b, the elastic piece 16 is fixed by press-fitting by forming the hole 8 formed in the substrate 5 into a square hole and forming the shaft part 20 of the elastic piece 16 into a square shape slightly larger than the hole 8. Good too.

To set the digital code, first, a tool such as a screwdriver is inserted into the groove 10 and the operating body 9 is rotated. Then, the arm piece 19 bends and engages with the tooth portion 12, and the slider 15 short-circuits the digital patterns 7 from 0 to 15 in sequence to set 16 digital codes. At this time, the operating body 9
The teeth 12 engage with the opening 18 and are pressed in the direction N, so that the digital code can be read from 0 to 15.
The operating body 9 is reliably positioned up to the point where the digital pattern 7 and the slider 15 are prevented from being misaligned. Furthermore, even if the digital pattern 7 and the slider 15 of one operating body 9 do not reliably engage with the teeth 12 and the opening part 18 as shown in FIG. 5a, the other operating body 9 By rotating the operating body 9, the arm pieces 19 are bent and the parallel portions 17 come into contact with each other, so that the tooth portions 12 and the open portions 18 are reliably engaged.

Here, the settings from 0 to 15 will be explained based on FIG. As shown in FIG. 5d, the slider 15 is attached to the back surface 9b of the operating body 9, and the arms 15a, 15c, and 15e are located to the left of the center of the digital pattern 7 in the figure. , arm portions 15b and 15d are arranged to the right of the shaft 14.
Further, as shown in FIG. 5e, only the tips of the arm portions 15a of the slider 15 are in contact with the contacts 7a of the digital pattern 7. FIG. 5f shows a state in which the digital pattern 7 and each arm portion 15a of the slider 15 are overlapped. As described above, the arm portion 15a of the slider 15 corresponds to the common contact 7a of the digital pattern 7, and
c and 7c... correspond to each other. Even when the operating body 9 is rotated, the arm 15a of the slider 15 is always in contact with the common contact 7a of the digital pattern 7, and when the other arm 15b... contacts the contact 7b... The digits that do not touch each other will be ``0''.

Now, FIG. 5f shows the setting state of 0, that is, "0000". That is, the arm portion 15a is in contact with the common contact 7a, the arm portions 15c and 15e are also in contact with the common contact 7a, and the other arm portions 15b and 15d are not in contact with the digital pattern 7. Therefore, the contact 7 of the digital pattern 7 that determines the place (digit)
Since none of the arm portions 15b are in contact with b..., "0000", that is, 0 is set.
Next, move the slider 15 clockwise for 360/16 minutes, that is,
When rotated 22.5 degrees, only the arm 15b is connected to the contact 7.
1 can be set because it comes into contact with b, and when it is further rotated by 22.5 degrees, only the arm 15c comes into contact with the contactor 7c, so it can be set to 2. By rotating the slider 15 in the same manner, up to 15 settings can be made.

As explained above, this invention is based on a container 1 that combines a lid 3 with a pair of circular holes 2 and a container 4.
A pair of digital patterns 7 are formed on the concentric circle of the through hole 6 in correspondence with the circular hole 2, and a hole 8 is formed between the digital patterns 7, and a substrate 5 is attached to the back surface of the lid body 3. and the circular hole 2
A boss portion 11 that is recessed and loosely fitted, and a tooth portion 12 with a larger diameter than the boss portion 11 under this boss portion 11.
A circular portion 13 having approximately the same diameter as the tooth portion 12 is formed under the tooth portion 12, and the circular portion 1
3, a pair of operating bodies 9 are provided with a shaft 14 that is rotatably supported in the through hole 6, and are equipped with a slider 15 that contacts and connects with the digital pattern 7; and a parallel part that has one end formed as a free end X. The opening part 18 of the pair of arm pieces 19 consisting of the opening part 17 and the opening part 18 is engaged with the tooth part 12 of the operating body 9, and the circular part 13
The operating body 9 is urged toward the board 5 side by making elastic contact with the arm piece 1.
Since the shaft portion 20 formed at the support end Y of the switch 9 is fixed to the hole 8 formed in the substrate 5 at a predetermined distance from the through hole 6, a digital switch is formed by an elastic piece 16 or the like. As shown in Figure 2, this prevents the opening of the hole for forming the elastic tip in the lid body, eliminating the need to use a name plate, and the boss portion 11 of the operating body 9 is placed in the circular hole 2. Since it is recessed and loosely fitted, it prevents the operating body 9 from rotating due to a child's mischief and accidentally switching the digital code. 19 is bent and the parallel parts 17 come into contact with each other, so that a digital switch with reliable contact between the digital pattern 7 and the slider 15 can be obtained. Further, an operating body 9 is equipped with a slider 15 that contacts and connects with the digital pattern 7 of the board 5.
a shaft 20 of an elastic piece 16 that engages the open portion 18 of the arm piece 19 with the teeth 12 of the operating body 9 and urges the operating body 9 toward the board 5 side. Since holes 8 for fixing the digital pattern 7 and the slider 1 are formed in the substrate 5 at predetermined intervals, the digital pattern 7 and the slider 1
In order to achieve reliable contact with the arm piece 19
That is, by fixing the elastic piece 16 on the board 5, the loose fitting position of the elastic piece 16 and the operating body 9, which determines the stopping position of the operating body 9 during setting, is as shown in FIG. The shaft portion 20 of and the shaft 14 of the operating body 9
In other words, the distance between hole 8 and through hole 6 x
Therefore, compared to the conventional example in which the elastic tip is located on the lid that locks the board, the operating body 9 on which the slider 15 is attached is
An elastic piece 16 that engages with the teeth 12 of the operating body 9 and urges the operating body 9 toward the board 5 by elastically contacting the circular portion 13 formed under the teeth 12 is inserted into the through hole. Since the distance is determined by the distance between the holes 6 and 8, it is possible to control the precision of the dimensions and reduce the possibility of poor contact due to relative positional variations during assembly. Therefore, the contact between the digital pattern 7 and the slider 15 is caused by the elastic piece 16 that urges the operating body 9.
It produces more reliable effects. Furthermore, since the shaft portion 20 of the elastic piece 16 is fixed to the hole 8 of the base plate 5, the elastic piece 16 is integrated with the base plate 5, and the operating body 9 engages the arm piece 19 of the elastic piece 16.
is determined by the relative position between the through hole 6 in which the shaft 14 is supported and the hole 8 formed at a predetermined distance from the through hole 6 and in which the elastic piece 16 is fixed.
6 and the operating body 9 are determined by a mold for making the through holes 6 and holes 8. Therefore, even if the board 5 is attached to the device body 4, the slider 15 of the operating body 9 and the digital pattern 7 of the board 5 are not connected to each other. This has the effect that the contact position does not change and contact errors of the slider 15 do not occur, and contact can be made more reliably.

[Brief explanation of the drawing]

1 and 2 show a conventional example, with FIG. 1 being a perspective view and FIG. 2 being a partial perspective view. Figures 3 to 6 show an embodiment of this invention, with Figure 3 being a partially cutaway front view, Figure 4 being a vertical sectional view, Figure 5a being a perspective view of the main part, and Figure 5b being is a front view of the digital pattern, Fig. 5c is a perspective view of the operating body, Fig. 5d is a plan view showing the state in which the slider is combined with the operating body, and Fig. 5e is a diagram showing the slider and contactor. A diagram showing the contact state of
FIG. 5f is a diagram showing the setting state, and FIG. 6 is an explanatory diagram. 1... Container, 2... Circular hole, 3... Lid, 4...
Container body, 5... Board, 6... Through hole, 7... Digital pattern, 8... Hole, 9... Operating body, 10...
Groove, 11... Boss part, 12... Teeth part, 13... Circular part, 14... Shaft, 15... Slider, 16... Elastic piece, 17... Parallel part, 18... Open part, 19...
Arm piece, 20... Shaft, 21... Resistor, 22... Relay, 23... Integrated circuit, X... Free end, Y...
supporting end.

Claims (1)

[Claims for Utility Model Registration] (1) A container combining a lid body and a container body each having a pair of circular holes formed therein, a pair of digital patterns formed on concentric circles of the through-holes in correspondence with the circular holes, and A substrate with holes formed between the digital patterns and mounted on the back side of the lid body, a boss portion that is recessed into the circular hole and loosely fitted, and a tooth below the boss portion that has a larger diameter than the boss portion. A circular portion having a diameter substantially equal to that of the tooth portion is formed under the tooth portion, and a shaft is formed on the back surface of the circular portion to be rotatably supported in the through hole, and the shaft is further contacted and connected to the digital pattern. A pair of operating bodies equipped with sliders, and a pair of arm pieces each having one end formed as a free end and having a parallel part and an open part are engaged with the toothed parts of the operating bodies, and the circular part is It is characterized by comprising an elastic piece that makes elastic contact to urge the operating body toward the board side, and a shaft part formed at the supporting end of the arm piece is fixed to a through hole in the board and a hole formed at a predetermined interval. Digital switch. (2) The digital switch according to claim 1, wherein the hole formed in the substrate is a square hole, and the shaft portion of the elastic piece fixed to the square hole is square.