JPS6342417Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a slide switch, which is easy to assemble by combining a slide switch with a heart-shaped cam mechanism and a slide switch in which a slider moves a movable contact piece to perform switch switching. Furthermore, it is an object of the present invention to provide a slide switch that can improve switch switching performance.

In conventional slide switches, the slider is inserted into the case and biased in the return direction by a coil spring, and as the slider is pushed repeatedly, a heart-shaped cam mechanism installed between the slider and the case pushes the slider to the return position. There is one that sequentially switches and holds the switch and then switches the switch. According to this,
The switch switching operation is a so-called push-push operation in which the slider is pushed repeatedly, so it has the advantage of good operability, but on the other hand, the sliding contact held by the slider slides on multiple fixed terminals embedded in the case board. However, since the contact pressure is relatively small, it cannot be applied to large-capacity switches, and the range of application is limited.

In another conventional example, when a slider housed in a case is slid back and forth while holding its operating knob, a pressing member that is held and biased against the slider in a direction perpendicular to the sliding direction is pivotally supported by the case. There is a device that presses back and forth on a movable contact piece to make a seesaw movement and alternately brings it into contact with a fixed contact piece to perform a switch change. According to this,
The movable contact piece makes a see-saw movement and presses into contact with the fixed contact piece, so it has the advantage of high contact pressure and can be applied to a wide range of applications, including large-capacity switches.
There was a drawback that the operation knob of the slider had to be moved back and forth, making operation cumbersome.

Therefore, the present invention provides a slide switch which allows the slider to be operated in a push-push manner, and also allows the movable contact piece to make a seesaw movement so as to switch into contact with the fixed contact piece.

The present invention eliminates the above-mentioned conventional drawbacks, and one embodiment thereof will be described below with reference to the drawings.

1 and 2 are an exploded perspective view and an assembled perspective view, respectively, of one embodiment of the slide switch according to the present invention. In the figure, the slide switch 1 has a resin case 2, and the case 2 is approximately box-shaped, with a guide portion 2a having a U-shaped cross section (having a groove 2b) projecting to the left, a projecting plate portion 2c inside the box, Each space on both sides 2
d-1, 2d-2, the left inner contact portion 2e, the three holes 2f, 2g, 2h on the bottom, a pair of U-shaped protrusions 2i, the four stepped portions 2j on the outer side, and the bottom bottom surface. It has a projecting plate portion 2k and the like.

3 to 5 are two sets of metal fixed terminals. Fixed terminals 3 and 5 have the same L-shape (fixed contact piece 3
a, 5a), for example, the hole 2 in the space 2d-1
f, 2h, and the fixed terminal 4 has a recess 4a at the upper end and engaging protrusions 4 on both inner sides of the recess 4a.
b, and is similarly attached to the hole 2g in the space 2d-1. Further, other sets of fixed terminals 3 to 5 are similarly attached to holes 2f to 2h in space 2d-2.

6 is a pair of metal movable contact pieces having a substantially arcuate shape;
Each has movable contacts 6a at both ends and engaging recesses 6b at both sides of the center. One movable contact piece 6 is placed in contact with the recess 4a of the central fixed terminal 4 in the space 2d-1 of the case 2 so as to be electrically conductive with each other, and the engaging recesses 6b are respectively engaged with the engaging protrusions 4b. This enables seesaw movement using this engaging portion as a fulcrum, and a pair of movable contacts 6a
are spaced apart from and opposite to the fixed contacts 3a and 5a, respectively. Other movable contact pieces 6 are also attached to the fixed terminals 4 in the space 2d-2 in the same manner.

7 is a slider, each of which has an operation slider 8 made of resin.
and the driven slider 9 are manufactured separately and then assembled. The operation slider 8 has an elongated rectangular parallelepiped shape, and includes an operation part 8a, a collar part 8b, a groove 8c, a heart-shaped cam groove 8d (having one end 8d-1 and the other end 8d-2), and a rear projecting plate part 8e (having a hole 8f). ), and lower surface protrusion 8
g (shown in Figure 3). A coil spring 10 and a lock pin presser spring plate 11 (having a square hole 11a and a tongue portion 11b) are sequentially fitted into the operation slider 8 as a single unit from the rear. The driven slider 9 has a pair of recesses 9a (each having a protrusion 9b) on the upper surface, a left end abutment section 9c, a groove 9d on the lower surface, and a pair of holes 9e on both sides of the lower surface (shown in FIG. 3). A coil spring 12 and a resin presser 13 are inserted into each hole 9e as shown in FIG. 3. Here, the projecting plate portion 8e of the operating slider 8 is connected to the recessed portion 9a of the driven slider 9.
The hole 8f and the convex portion 9b are loosely fitted into each other.

This slider 7 is attached to the case 2, as shown in FIG.
stored inside. Here, both sliders 7 and 8 are guided by the fitting of the convex line 8g and the concave line 2b on the operating slider 8 side and the fitting of the concave line 9d and the projecting plate part 2c on the driven slider 9 side, and are guided by the hole 8f and the convex part. 9
By fitting b, it becomes possible to slide integrally in the directions of arrows A and B.

Reference numeral 14 denotes a frame formed by bending a metal plate into a U-shape.
As shown in FIGS. 2 and 3, the protrusion 14d is inserted through the upper part of the square hole 11a of the spring plate 11 on the upper surface of the case 2, as shown in FIGS. 2 and 3. In addition, the claw portions 14e are respectively bent and latched to the stepped portions 2j.

Reference numeral 15 denotes a U-shaped lock pin, one end 15a of which is inserted into the hole 14c of the frame 14 on the top surface of the frame 14 and accommodated in the groove 8c of the operation slider 8, as shown in FIG. The heart-shaped cam groove 8 is inserted through the arcuate hole 14b.
d. At this time, the lock pin 15 is pressed downward by the tongue portion 11b of the spring plate 11 to prevent it from coming off due to floating, and can reciprocate around the engagement portion with the hole 14c as a fulcrum.

Here, in FIG. 3, the slider 7 is at its sliding limit in the direction of arrow A, but this position is maintained by the other end 15b of the lock pin 15 engaging with the other end 8d-2 of the heart-shaped cam groove 8d. . Furthermore, the driven slider 9 is biased in the direction of arrow A by the elastic force of the spring 10 interposed between the flange 8b and the spring plate 11, and the slider 7 has a left end abutting portion 9c of the driven slider 9 against the case. It is also held by contacting the inner contact portion 2e of No.2. That is, since there is a risk of deformation or floating if the lock pin 15 is used alone, the abutting portions 9c and 2f reliably hold the sliding limit position in the direction of arrow A and prevent the lock pin 15 from deforming or floating. are doing. At the same time, each of the pair of pressers 13 is at its sliding limit in the direction of arrow A and presses the left end of the movable contact piece 6 downward, so the movable contact piece 6 is rotated counterclockwise in FIG. 3 in a see-saw manner. The left movable contacts 6a are in contact with the fixed contacts 3a, respectively, and the terminals 3 and 4 are electrically connected to complete a predetermined circuit.

During the above-mentioned procedure for assembling the slider 7, since the operation slider 8 has approximately the same shape as a conventional slider with a heart-shaped cam mechanism, the coil spring 10 and the spring plate 11 can be easily fitted from the rear of the operation slider 8, and then The driven slider 9 is connected to the projecting plate part 8e and the recessed part 9a (hole 8f).
It is only necessary to loosely fit the convex portions 9b) and 9b), and the entire assembly procedure is extremely easy. (In other words, if the procedure is to assemble the coil spring 10 after assembling the operating slider 8 and the driven slider 9, the flange 8b must be assembled later as a separate member, but the flange 8b is assembled and fixed. configuration is difficult).

Next, the operation of the slide switch 1 will be explained. When the operating portion 8a of the operating slider 8 is pushed in the direction of arrow B in FIG. 15b is locked and held at the sliding limit position in the direction of arrow B, where one end engages with 8d-1. Accordingly, the pair of pressers 13 reach the sliding limit in the direction of arrow B while pressing the movable contact piece 6, respectively, and press the right end of the movable contact piece 6 downward. During this time, the movable contact piece 6 gradually rotates clockwise, and finally the right movable contact 6a comes into contact with the fixed contact 5a, and the terminals 4 and 5 are brought into conduction and another predetermined circuit is switched and closed.

Next, when the slider 7 is pushed slightly in the direction of the arrow B, the lock pin 15 and one end 8d-1 of the heart-shaped cam groove 8d are disengaged, and when the pushing force is released, the slider 7 slides back in the direction of the arrow A due to the bias of the coil spring 10, returning to the position shown in Fig. 3. Therefore, the movable contact pieces 6 are rotated counterclockwise by the pushing and sliding of the pusher 13, returning to the position shown in Fig. 3, and the terminals 3 and 4 are switched back to their closed state, and the initial specified circuit is returned to its closed state.

According to the above operation, the switch can be changed by simply pushing the slider 7 in the same direction, so the operation is extremely easy.Moreover, the movable contact piece 6 rotates in a see-saw manner to switch between the fixed contacts 3a and 5a. Because of the pressure contact, the contact pressure is large and it can be applied to large-capacity switches.

In addition, the operating slider 8 and the driven slider 9 of the slider 7 are separate members, and the projecting plate part 8e, the recessed part 9a, the hole 8f, and the protruding part 9b fit loosely and have some play, so the operating slider 8 Even if there is rattling in the vertical and horizontal directions due to the operating force, this rattling is not transmitted to the driven slider 9, and the driven slider 9 slides stably, allowing for good switching.

In the above embodiment, the positioning mechanism of the slide switch 1 is a heart-shaped cam mechanism, but the mechanism is not limited to this. The cam portion of the cam plate is selectively engaged with a pair of cam grooves connected to the side surface of the operation slider 8 as the slider 7 slides in the directions of arrows A and B, causing the slider 7 to slide in the directions of arrows A and B. A so-called interlocking push button switch type for positioning may also be used.

As described above, according to the slide switch of the present invention, the slider held in the case slides back and forth, and the movable switch is pivoted on the case by a pressing member that is held and biased in a direction perpendicular to the sliding direction of the slider. In the slide switch configured to press a contact piece to make a see-saw movement and selectively contact a fixed contact piece of the case, the slider is fitted into the case with one end of the operating portion protruding; The operating slider member is biased in the return direction by a spring member interposed between the operating portion and the case, and further has a positioning mechanism such as a heart-shaped cam mechanism between it and the case, and holds the pressing member. and the driven slider member housed in the case are engaged with each other so that they can slide together, and by repeatedly pushing the operating portion, the slider slides back and forth, and the positioning mechanism alternately moves the slider to the switching contact position. When the slider is held and returned, the driven slider is held in contact with the inner wall of the case due to the bias of the spring member, so that the slider can be operated simply by repeatedly moving the operating slider member in the same direction. It is extremely easy to operate because it only needs to be pushed in, and since the movable contact piece makes a seesaw movement and comes into contact with the fixed contact piece, the contact pressure is large and it can be applied to large-capacity switches, widening the range of application. Since the driven slider member is a separate member, the spring member can be fitted onto the operating slider member when it is a single member. This makes it easy to attach the spring member, reducing assembly man-hours, and reducing play in the operating force of the operating slider member. is difficult to transmit to the driven slider member, the driven slider member slides stably, and the switch performance can be improved. Furthermore, when the slider is returning, the driven slider is in contact with the inner wall of the case due to the elastic force of the spring member, so that no large force is applied to the positioning mechanism, preventing the positioning mechanism from deforming, and preventing the slider from deforming. It has features such as being able to hold the material in a stable state without wobbling.

[Brief explanation of the drawing]

1 and 2 are an exploded perspective view and an assembled perspective view, respectively, of an embodiment of the slide switch according to the present invention, and FIG. 3 is a longitudinal sectional view of the slide switch. 1...Slide switch, 2...Case, 3,
4, 5...Fixed terminal, 3a, 5a...Fixed contact,
6... Movable contact piece, 6a... Movable contact, 7... Slider, 8... Operation slider, 8d... Heart-shaped cam groove, 8e... Projection plate portion, 9... Driven slider, 9
a... Recessed portion, 10... Coil spring, 11... Leaf spring, 13... Presser, 14... Frame, 15...
...Lock pin.

Claims (1)

[Scope of utility model registration request] A slider held in a case is slid back and forth, and a movable contact piece pivotally supported on the case is pressed by a pressing member held by urging the slider in a direction perpendicular to the sliding direction to cause seesaw movement. In the slide switch configured to selectively make contact with a fixed contact piece of a case, the slider is fitted into the case with one end of the operating section protruding, and is interposed between the operating section and the case. an operating slider member which is biased in the return direction by a spring member and which has a positioning mechanism such as a heart-shaped cam mechanism between it and the case; and a driven slider member which holds the pressing member and is housed in the case. are engaged with each other to be able to slide together, and by repeatedly pushing the operating portion, the slider slides back and forth, and is alternately held at the switching contact position by the positioning mechanism, and the slider is returned to its original position. A slide switch in which the driven slider is held in contact with the inner wall of the case by the bias of the spring member.