JPH0635337Y2 - switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a switch for swinging an operating lever in multiple directions to open and close various circuits.

[Prior Art] As a conventional switch, for example, a switch described in Japanese Utility Model Laid-Open No. 60-37144 is known.

FIG. 4 is a cross-sectional view showing the above-mentioned conventional switch, FIG. 5 is a perspective view showing the flexible printed circuit board 7a, the supporting plate 75 and the auxiliary supporting plate 76 shown in FIG. 4, and FIG. 6 is a movable contact shown in FIG. FIG. 6 is a perspective view showing a piece 6a.

In each drawing, 1 is an operating lever having a square cross section at its tip and having a ball hole 12a in the center (operation part is not shown), 2 is a switch case, and 4 is the tip passing through the rotation center of the operating lever 1. A shaft core provided on an axis parallel to one side surface, 6a is a movable contact piece provided on four side surfaces of the tip of the operating lever 1 and having a movable contact 61a at its tip, and 7a is a movable contact piece 6a.
A pair of common fixed terminals 70 and a fixed terminal 71a that are bridged / conducted by a flexible printed circuit board having a cross shape in a developed shape are provided, 8a is a moderation ball, and 9 is a vine that acts to push out the moderation ball 8a. A spiral spring, 10 is a moderating plate which cooperates with the moderation ball 8a to hold the operating lever 1 in a neutral position, and 12a is a moderation ball 8a and a spring 9.
, 14 is a hemispherical spherical shaft portion whose center is the swing center of the operating lever 1, 25 is a spherical bearing of the case 2, and 70 is a common provided on the four ends of the flexible printed circuit board 7a. Fixed terminal, 71a is an independent circuit fixed terminal, 7
Reference numeral 5 is a support plate for the flexible printed board 7a, 76 is also a sub-support plate, and 77 is an electric component having lead wires penetrating the support plate 75 and soldered to the flexible printed board 7a.

The flexible printed circuit board 7a having the moderating plate 10, the support plate 75, and the auxiliary support plate 76 adhered to the back surface is installed in the lower part of the case 2, and the flexible printed circuit board 7a is bent at its four-sided end portions to form an inner surface of the case 2. The common fixed terminal 70 and the fixed terminal 71a are assembled so as to be held in a position facing the movable contact 61a. The spherical shaft portion 14 of the operating lever 1 is pressed against the spherical bearing 25 by the spring 9, and is restricted by the shaft core 4 and the shaft bearing box 21 so that it can swing only in a cross shape parallel to the side surface of the case 2. There is.

Therefore, the operation lever 1 can be tilted in one direction to bring the movable contact 61a of one movable contact piece 6a into contact with and bridge the common fixed terminal 70 and the fixed terminal 71a to turn on the circuit.
Since this is possible in four directions, four types of circuits can be turned on. When the hand is released from the operating lever 1, the operating lever 1 is returned to the neutral position by the moderating ball 8a, the spring 9 and the moderating plate 10.

[Problems to be solved by the invention] The conventional switch has a complicated configuration and a large number of parts,
There is a problem that an expensive flexible printed circuit board 7a is required, the assembly work is complicated, and the manufacturing cost is high.

The present invention has been made in order to solve such a problem, and an object thereof is to obtain a switch which has a simple structure and can be easily assembled at low cost.

[Means for Solving the Problems] A switch according to the present invention includes a movable frame body provided with a pillow-shaped protrusion on one side surface of a distal end portion of an operation lever, and an interlocking wall into which the pillow-shaped protrusion can be fitted. A switch board is provided in a multi-layered manner, and the switch board is fixed, and the movable frame body is capable of reciprocating in one direction on the switch board. A sliding contact having a sliding contact that slides, and a touch contact having a touch contact that abuts / conducts with a fixed terminal on the switch substrate when pressed toward the switch substrate by the pillow-shaped protrusion. And a movable contact piece provided with at least one piece in parallel with the sliding direction.

[Operation] Since the switch of the present invention is configured as described above, one set of the sliding contact pieces is always connected to the common fixed terminal, and the other set of the sliding contact pieces is provided on the straight line of the operation lever. Abuts either the first or the second fixed terminal against the swing in the direction.
The common fixed terminal and the first or second fixed terminal are connected to each other by conduction. Further, when the operation lever swings in one direction perpendicular to the two directions, the touch contact piece contacts and conducts with a third fixed terminal to connect the common fixed terminal to the switch. Can act.

Further, since the longitudinal direction of the sliding contact piece is parallel to the moving direction thereof, sliding can be performed smoothly.

[Embodiment] FIG. 1 is a sectional view showing a switch which is an embodiment of the present invention, and FIG. 2 is a plan view showing a case where the case 2 of FIG. 1 is removed. Portions which are the same as or correspond to those in FIGS. 4 to 6 are denoted by the same reference numerals, and detailed description thereof will be omitted.
In the figure, 3 is a pressing plate made of plastic such as polyacetal, 6 is a movable contact piece made of an elastic conductor such as phosphor bronze, and 5 is a movable contact piece made of plastic such as polyacetal. A movable frame body for supporting a switch board, 7 is a switch board formed of a printed board having a common fixed terminal and other fixed terminals, 8 is a moderation pin having a hemispherical head, 12 is a moderation pin 8 and a pin for accommodating the spring 9. A hole, 13 protrudes in a pillow shape on the lower surface of the tip end portion 1a of the operation lever 1, and a pillow-like protrusion portion for transmitting the movement of the tip end of the operation lever 1 to the movable frame body 5, 21 indicates the case 2 and the pressing plate 3. A bearing box provided in the abutting portion and formed in a rectangular shape long in the longitudinal direction of the operating lever 1, 22 is a moderation pin 8 of the case 2.
Moderation slopes provided in three directions so that the most stable position (neutral position) when the operating lever 1 is in the state shown in FIG. 1 on the contact surface of the head, 32 are four on the pressing plate 3 The support claws provided, 35 is a spherical bearing provided on the pressing plate 3,
Reference numeral 51 denotes an opening provided substantially in the center of the movable frame body 5, reference numeral 52 denotes a connecting wall that is erected along the opposite short sides of the opening 51 of the movable frame body 5, and the pillow-shaped protrusion 13 is provided between the connecting walls 52. And the movement of the tip portion 1a of the operation lever 1 (upward and downward swing in FIG. 2) is transmitted to the movable frame body 5.

1 and 2 show the movable frame body 5 and the switch substrate 7 in which the two opposing support claws 32 of the pressing plate 3 are spread out against their elasticity and the movable contact piece body 6 is attached to the ceiling back surface. When mounted as shown in FIG. 3, the switch board 7 is fixed to the pressing plate 3, and the movable frame body 5 can be sandwiched on the switch board 7 so as to be movable in the arrow direction. The pressing plate 3 assembled in this manner, the operation lever 1 incorporating the moderation pin 8, and the spring 9 and the case 2 are combined to assemble the switch.

3A and 3B are a plan view and a side view showing the movable contact piece body 6 of FIG. In the figure, 63 is a movable contact piece 6
The base of the contact piece is perpendicular to the moving direction. Reference numeral 61 is a sliding contact piece which is provided at both ends of the contact piece base portion 63 in parallel with each other in a direction perpendicular to the contact piece base portion 63, and the base thereof is bent,
A semicircular sliding contact 61a at the tip of the sliding contact 61a comes into contact with and slides on the switch substrate 7. Reference numeral 62 denotes a switch contact piece which is provided substantially vertically in the central portion of the contact piece base portion 63 in a vertical direction. The central portion of the switch contact portion 62b protrudes upward in a semicircular shape, and a semicircular touch contact 62a is provided at the tip. have. The movable contact piece 6 is attached by a protrusion (not shown) provided inside the upper part of the movable frame body 5, and the longitudinal direction of each contact piece 61, 62 is parallel to the sliding direction of the movable frame body 5.

The two-dot chain line in FIG. 3 (a) indicates a fixed terminal of the printed circuit of the switch board 7, and 70 is a common fixed terminal which is provided at a position where one sliding contact 61a slides and which is long in the sliding direction. 72
Is the first and second fixed terminals provided at the position where the other sliding contact 61a contacts when the sliding contact 61a is moved from the neutral position, and 73 is the third fixed terminal provided at the position where the touch contact 62a abuts. is there. The sliding / contacting surfaces of the sliding contact 61a and the touch contact 62a, and the common fixed terminal 70 and each fixed terminal 71, 72, 73 are plated with, for example, silver to improve conductivity and wear resistance. .

Next, the operation of the switch according to the embodiment of the present invention shown in FIG. 1 will be described.

The operating lever 1 is a spherical bearing 25 for the case 2 and the pressing plate 3.
Although supported by Nos. 35 and 35, the shaft core 4 is restricted so that it can swing only in a T shape due to the fact that the shaft core 4 is contained in the rectangular shaft core receiving box 21 and the action of the moderation slope 22 and the moderation pin 8. To be done.

In FIG. 2, when an operation part (not shown) of the operation lever 1 is swung in the vertical direction in the drawing, both ends of the pillow-shaped protruding part 13 press the connecting wall 52 of the movable frame body 5 in the vertical direction in the drawing. To move the movable frame 5 back and forth in the direction of the arrow. When the operating portion of the operating lever 1 is swung upward in FIG. 1, the pillow-shaped protruding portion 13 is displaced downward in the drawing, and its lower surface abuts the protruding portion 62b of the touch contact piece 62, so that the touch contact piece 62 is removed. Push down toward the switch board 7. When the hand is released from the operation lever 1, the head of the moderation pin 8 pressed by the spring 9 slides down toward the center of the moderation slope 22 to return the operation lever 1 to the neutral position.

In FIG. 2, when the movable contact piece 6 moves up and down, the left sliding contact 61a is always in contact with and connected to the common fixed terminal 70 (see FIG. 3). When the operating portion of the operating lever 1 is swung upward in the drawing, the sliding contact 61a on the right side moves downward and comes into contact with the first fixed terminal 71, so that the common fixed terminal 70 and the first fixed terminal 71 are connected. Let When the operating portion of the operating lever 1 is swung downward, the right sliding contact 61a moves upward and comes into contact with the second fixed terminal 72, so that the common fixed terminal 70 and the second fixed terminal 72 will be connected. Further, when the operation portion of the operation lever 1 is swung vertically upward in the drawing, the touch contact 62a contacts the third fixed terminal 73, so that the common fixed terminal 70 and the third fixed terminal 73 are connected. It will be. As described above, the three types of circuits can be independently turned on.

[Effects of the Invention] As described above, the present invention provides a pillow-shaped protrusion on one side of the tip of the operation lever, and a movable frame that moves on the switch substrate by the pillow-shaped protrusion. The body has a sliding contact having a sliding contact that slides on a fixed terminal of the switch substrate, and a third fixing of the switch substrate when pressed toward the switch substrate by the pillow-shaped protrusion. In a switch provided with a movable contact piece body having a touch contact piece having a touch contact piece that comes into contact with and conducts to a terminal, in the movable contact piece body, each contact piece slides in its longitudinal direction from its base. Since it is formed in an extended projecting shape so as to be parallel to the moving direction, the shape is simple and manufacturing is easy, and it can slide on the switch board extremely smoothly and withstand long-term sliding. Becomes Further, the switch substrate has a small flat plate shape, which eliminates the need for a flexible printed circuit board, has an excellent effect that the assembly is easy and the manufacturing cost is low.

[Brief description of drawings]

FIG. 1 is a sectional view showing a switch which is an embodiment of the present invention, FIG. 2 is a plan view showing a case where the case 2 of FIG. 1 is removed, and FIGS. 3 (a) and 3 (b) are first views. FIG. 4 is a plan view and a side view showing the movable contact piece 6 shown in FIG. 4, FIG. 4 is a cross-sectional view showing a conventional switch, and FIG. 5 shows the flexible printed circuit board 7a, the support plate 75, and the auxiliary support plate 76 shown in FIG. The perspective view shown in FIG.
It is a perspective view showing a movable contact piece 6a of the figure. In the figure, 1 ... operating lever, 2 ... case, 3 ...
Holding plate, 4 ... Shaft core, 5 ... Movable frame, 6 ... Movable contact piece, 6a ... Movable contact piece, 7 ... Switch board, 7a ... Flexible printed board, 8 ... Moderation pin, 8a-moderation ball, 9-spring, 10-moderation plate, 12-pin hole, 12
a …… Ball hole, 13 …… Pillow protrusion, 14 …… Spherical shaft, 2
1 …… Bearing box, 22 …… Moderation slope, 25,35 …… Spherical bearing, 32 …… Supporting claw, 51 …… Opening, 52 …… Connecting wall, 61…
… Sliding contact, 61a …… Sliding contact, 62 …… Touch contact, 62a
…… Touch contact, 62b …… Projection, 63 …… Contact piece base, 70
...... Common fixed terminal, 71,71a, 72,73 …… Fixed terminal, 75 ……
Support plate, 76 ... Sub-support plate, 77 ... Electrical components. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A movable frame body provided with a pillow-shaped protruding portion on one side surface of a tip portion of an operating lever, and the movable frame body is configured to be moved by displacement of the pillow-shaped protruding portion in two directions on the straight line, and the movable frame. A switch substrate fixed on the body is provided, and the movable frame body has a sliding contact piece having a sliding contact that slides on the switch substrate as the movable frame body moves, and the pillow-shaped protruding portion. In a switch provided with a movable contact piece body having a touch contact piece having a touch contact that comes into contact with and conducts to a fixed terminal of the switch substrate by displacement in another one direction, the movable contact piece body is At three places, both ends and almost the center,
A switch comprising one or more of each of the sliding contact piece and the touch contact piece extending in parallel with the moving direction of the movable frame.