JPS6324571Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention can be easily configured into either a non-shutting type (disconnecting contact type) or a shunting type (joint contact type) switch, and can realize smooth sliding operation. This relates to slide switches.

A plurality of fixed contact pieces each having a narrow contact portion and a wide contact portion are arranged on an insulating substrate, a common contact piece is provided so as to face the fixed contact pieces, and this fixed contact piece is The sliding contact piece is provided so as to straddle the contact part of the fixed contact piece and the contact part thereof, and
A slide switch that performs a switching operation between a non-shutting type and a shunting type by moving this sliding contact piece has been used in the past.

The configuration shown in FIG. 1 is a conventionally used switch of this type, in which a plurality of fixed contacts 12-1 to 12-4 are fixed at intervals on an insulating substrate 11. It is arranged. These fixed contact pieces 12-1 to 12-4 have the wide portion 13 on the substrate 11 side.
-1 to 13-4, and these wide parts 13-1
Continuing from 13-4 to 13-4, narrow portions 14-1 to 14 whose widths are narrowed are provided on the end side away from the substrate 11.
-4 is formed. These fixed contact pieces 12-
A common terminal 15 is extended so as to surround the fixed contact pieces 12-1 to 12-4 on the same plane and to be electrically insulated from the fixed contact pieces 12-1 to 12-4, and is fixed to the substrate 11 at both ends thereof. . One end of this common terminal 15 is connected to the fixed contact piece 12 from the board 11.
It is taken out parallel to the takeout terminal portions -1 to 12-4, and is used as the takeout terminal 16 of the common terminal 15.

A movable contact piece 20 is attached so as to straddle the common terminal 15. The movable contact piece 20 is made of an elastic conductive material, and is connected to the common terminal 15 or the fixed contact pieces 12-1 to 12- so as to straddle the common terminal 15 from both sides.
The contact portion side with 4 has a bifurcated shape. Further, the movable contact piece 20 is formed with leg portions extending perpendicularly to the longitudinal direction at both ends thereof in the longitudinal direction. The legs on one end side in the longitudinal direction of the common terminal 15 of the movable contact piece 20 are contact parts 21-1, 21-.
2, and the end portion of the common terminal 15 remote from the substrate 11 is elastically held in the contact portions 21-1 and 21-2. Further, contact portions 22-1 and 22-1 are provided on the leg portions of the common terminal 15 of the movable contact piece 20 on the other end side in the longitudinal direction.
2-2 is formed, and in the case of a non-pronged type as shown in FIG.
The narrow portions 14-1 to 14-4 of 2-4 are elastically held.

Each contact part 21-1, 21-2 and 22-1-2
The movable contact piece 20 straddles the common terminal 15 and slides along its longitudinal direction while holding the common terminal 15 and the narrow portions 14-1 to 14-4 of the fixed contact piece in the 2-2 section. It can be installed freely. Therefore, in the non-swinging type shown in FIG.
A so-called non-shutting type switching is performed in which contact with the next fixed contact piece 12-1 to 12-4 is made while releasing contact with 2-1 to 12-4.

FIG. 3 is a diagram showing the configuration of a short-length type, in which the contact portions 22-1 and 22-2 are provided on the board 15 side, and the wide portion 1 of the fixed contact piece is connected to the contact portions 22-1 and 22-2. -1 to 13-4 positions can be elastically held. In the shape shown in FIG. 3, when the movable contact piece 20 is slid, the contact portions 22-1 and 22-2 maintain contact with the fixed contact pieces 12-1 to 12-4 that are currently in contact. At the same time, a so-called switching type is performed in which contact is made with the next fixed contact pieces 12-1 to 12-4.

However, in this conventionally used slide switch, in order to switch the switching type, it is necessary to set the height of the movable contact piece 20 relative to the board 11 long, and the height of the entire slide switch relative to the board 11 must be set long. As the height increases, the overall size has to increase.

Furthermore, since the distances from the substrate 11 of the contact portions 21-1, 21-2 and 22-1, 22-2 of the movable contact piece 20 are considerably different, the common terminal 15 at each contact portion of the movable contact piece 20 is Or, the clamping position for the fixed contact pieces 12-1 to 12-4 becomes asymmetrical with respect to the sliding direction, and there is a difference in the elastic clamping force between the common terminal 15 of the movable contact piece 20 or the fixed contact piece 12-1. ~12-4 elastic retention is unstable. For this reason, when the movable contact piece 20 is in a sliding state, there is a possibility that the position of the movable contact piece 20 may shift and accurate sliding may not be performed.

This invention solves the problems in the conventional slide switch described above, reduces the height relative to the board 11, and elastically retains the common terminal 15 of the movable contact piece 20 and the fixed contact pieces 12-1 to 12-4. To provide a slide switch whose condition is stable and whose sliding operation is extremely smooth.

FIG. 4 shows the configuration of the main part of an embodiment of this invention in a non-swinging type. Contact pieces 12-1, 12-
Spacing pieces 25-1, 25-2, . . . are provided so as to extend between adjacent narrow width portions 14-1, 14-2, . The tips of these spacing pieces 25-1, 25-2... are connected to the narrow parts 14-1, 14-2... and the wide parts 13-1, 13.
-2... is extended to the boundary position. Also, the thickness of the spacing pieces 25-1, 25-2... is the same as that of the narrow part 1.
The thickness is set to be almost the same as that of 4-1, 14-2....

The movable contact piece 20 is formed into a bifurcated shape so that it can be disposed so as to straddle the common terminal 15 from both the front and back sides.
Guide piece 2 for smooth operation and movement during sliding
0-A and 20-B are attached with their tips separated from the common terminal 15. These guide pieces 20-A, 20- at the center of both side plates of the movable contact piece 20
Both end portions on the B side are cut, and the central piece portions narrowed by these cuts are bent so as to be close to each other to form first contact portions 21-1 and 21-2. Further, the central portions of both end plates of the movable contact piece 20 are extended to the opposite side to the guide pieces 20-A and 20-B and bent so as to be close to each other, thereby forming second contact portions 22-1 and 22-2.
2-2 is formed. In other words, both sides of the movable contact piece 20 are U-shaped plate parts, and first and second contact parts are integrally disposed in opposite directions from the connecting part that connects both legs of the U-shape. 1 contact portion 21-1,
21-2 is in sliding contact with the common terminal 15, and the second contact portions 22-1, 22-2 are in contact with the fixed contact pieces 13-1, 1.
3-2... are formed so as to be in sliding contact with the narrow portions 14-1, 14-2....

In this way, the first contact portions 21-1, 21-
2 is configured to elastically hold the common terminal 15 from both sides of the movable contact piece 20 at approximately the center position in the width direction.

Further, the second contact portions 22-1, 22-2 are the narrow portions 14-1, 14 of the fixed contact pieces 13-1, 13-2...
-2... is configured to be elastically held from both sides at its substantially central portion.

Therefore, in the non-swinging type shown in FIG. 4, for example, from the narrow part 14-1 of the fixed contact piece 13-1 to the fixed contact piece 13
-2nd contact part 22- to narrow width part 14-2 of -2
1 and 22-2, there is a state in which the second contact portions 22-1 and 22-2 sandwich the spacer piece 25-1. In this way, during the sliding process, the second contact parts 22-1, 22-2 sandwich the spacer piece 25-1, so that the second contact parts 22-1, 22-2 sandwich the spacer piece 25-1.
22-2 elastically approach each other between the narrow portions 14-1 and 14-2, so that so-called depression does not occur. Therefore, the sliding transition of the second contact portions 22-1, 22-2 from the narrow portion 14-1 to the narrow portion 14-2 is performed extremely smoothly.

In order to further improve this smooth sliding, the second contact portions 22-1 and 22-2 are provided at both end portions in the sliding direction.
A tapered surface is formed such that the thickness of 1 and 22-2 decreases.

The movable contact piece 20 has a shape that is bilaterally symmetrical in the sliding direction, and the movable contact piece 20 has a shape that is bilaterally symmetrical in the sliding direction.
The contact portions 22-1 and 22-2 are arranged on the center line of the movable contact piece 20 in the sliding direction. Therefore, the common terminal 15 of the movable contact piece 20 and the fixed contact piece 12-
1, 12-2... is extremely stable, and the sliding movement of the movable contact piece 20 is performed smoothly.

FIG. 5 shows the structure of the sliding type of the embodiment of the slide switch of this invention, in which the central part of the movable contact piece 20 is divided into two pieces and the guide pieces 20-A and 20-B are separated from each other on the opposite side. It has been extended.
The common terminal 15 and the fixed contact pieces 12-1, 12-2... of the extension piece divided into two pieces are narrowed from both the front and back sides, and those facing each other are elastically bent in the direction near each other to form a second Contact portions 22-11, 22-
21, 22-12, and 22-22 are formed.

In this short length type, when the movable contact piece 20 slides, for example, as shown in FIG. When moving to the part 14-2, the second contact parts 22-11, 22-21 and 22-12, 22-22 are transferred via the spacing piece 25-1. In this case, the second contact portion 22-11,
22-21 and 22-12, 22-22 in the sliding direction, and the narrow portions 14-1, 14-2 and the spacer pieces 25, the second contact occurs. The parts 22-11, 22-21 and 22-12, 22-22 maintain contact with each of the fixed contact pieces 12-1, 12-2, which are currently in contact with the next fixed contact piece 12-1, 12-2 . . . so-called shooting type switching is performed.

FIG. 11 shows another example of the second contact portions 22-1 and 22-2 in the case of the short extension type. In this case, the center portion of the movable contact piece 20 is connected to the guide piece 2.
Second contact portions 22-1, 22-2 are extended as one piece on the opposite side to 0-A and 20-B, and are long and extended in the sliding direction of this extended portion.
is formed. In this case as well, as shown in FIG.
5-1, and the second contact portion 22-1,
The so-called shortening type switching is performed smoothly without any drop in the voltage 22-2.

In this way, the slide switch of this invention is
Fixed contact pieces 12-1, 12-2... and common terminal 1
5 remains unchanged, the shape of the movable contact piece 20, and its fixed contact pieces 12-1, 12-2...
Second contact portions 22-1, 22-2 located on the sides...
...By simply changing the width of the part, you can easily produce a non-pronged type and a pronged type. Therefore, there are few different parts due to differences in type, and the manufacturing process can be carried out extremely efficiently and at low manufacturing costs.

Also, in terms of operation as a switch, the contact locus of the second contact portions 22-1, 22-2... on the fixed contact pieces 12-1, 12-2... is almost the same, and The height from the substrate 11 when attached to the substrate 11 can be significantly reduced compared to the conventional one, and the overall size can be reduced.

Furthermore, the movable contact piece 20 is connected to the common terminal 15 and the fixed contact piece 1.
2-1, 12-2... are held elastically and extremely stably during the sliding operation, and due to the presence of the spacing pieces 25-1, 25-2..., during the sliding process. Second contact portion 22- of movable contact piece 20
1 and 22-2 do not fall down, and a smooth sliding operation is realized.

In the embodiment, the spacer pieces 25-1, 25-2
. . . are formed integrally with the common terminal 15. However, the spacing pieces 25-1, 25-2, . . . are not limited to those formed integrally with the common terminal 15. It is also possible to realize a configuration in which the terminal is formed of 100% and connected to the common terminal 15.

As explained in detail above, according to this invention, by changing only the width of a part of the movable contact piece, it is possible to easily obtain a sliding switch of the swinging type and a non-swinging type, and the manufacturing and material costs can be greatly reduced. It can be reduced to Even during the switching operation of the switch, the contact part of the movable contact piece does not fall during sliding, and the attachment of the movable contact piece maintains a stable state as it slides, making it possible to achieve smooth and reliable sliding action. It becomes possible to realize a slide switch.

[Brief explanation of the drawing]

Figure 1 shows the configuration of a conventionally used non-shutdown type slide switch, Figure 2
The figure is a sectional view showing the shape of the movable contact piece used in the slide switch shown in Fig. 1, Fig. 3 is a view showing the configuration of a conventionally used swing-type slide switch, and Fig. 4 is a slide of this invention. Figure 5 is a diagram showing the configuration of an embodiment of the non-shutdown type switch; Figure 5 is a diagram showing the construction of an embodiment of the sliding switch of this invention;
Figures 8 through 8 are diagrams showing the structure of the movable contact piece used in the non-shutting type embodiment of the slide switch of this invention, and Fig. 9 shows the structure of the movable contact piece used in the non-shutting type embodiment of the slide switch of this invention. Figure 10 is a diagram showing the sliding operation process in an embodiment of the sliding type of the slide switch of this invention, and Figure 11 is a diagram showing the implementation of the sliding type of the slide switch of this invention. It is a figure which shows the shape of the other example of the contact part used for an example. 11: Board, 12-1 to 12-4: Fixed contact piece,
15: Common terminal, 20: Movable contact piece, 20-A, 2
0-B: Guide piece, 21-1, 21-2, 22-
1, 22-2: Contact part, 25-1, 25-2...:
Spacing piece, 13-1 to 13-4: wide part, 14-1
~14-4: Narrow portion.

Claims (1)

[Scope of utility model registration request] A plurality of fixed contact pieces are arranged, and a common terminal is disposed to extend in the direction in which the fixed contact pieces are arranged, facing the fixed contact pieces on one side within the same plane, and the fixed contact pieces and the common terminal A movable contact piece is provided so as to be movable, and both sides of the movable contact piece are U-shaped plate parts, and first and second parts are connected in opposite directions from the connecting part that connects both legs of the U-shape. contact portions are integrally arranged, the first contact portion is in sliding contact with the common terminal, the second contact portion is in sliding contact with the fixed contact piece, and the contact portion is in sliding contact with the fixed contact piece, and the contact portion is in sliding contact with the common terminal, and the second contact portion is in sliding contact with the fixed contact piece. A spacing piece for preventing the second contact portion of the movable contact piece from falling is provided in connection with the common terminal, and by selecting the width of the movable contact piece in the moving direction, switching between the two-way tension and non-shouting is possible. A slide switch characterized in that the switching operation is configured to be selectable.