JPH0635336Y2 - 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. 6 is a cross-sectional view showing the above-mentioned conventional switch, FIG. 7 is a perspective view showing the flexible printed circuit board 7a, the support plate 75 and the sub-support plate 76 of FIG. 6, and FIG. 8 is a movable contact of FIG. FIG. 6 is a perspective view showing a piece 6a.

In each drawing, 1 is an operation lever (the operation part is not shown) having a square cross section at its tip and a ball hole 12 at the center,
Reference numeral 2 is a case of the switch, 4 is an axial center provided on an axis passing through the center of rotation of the operating lever 1 and parallel to one side surface of the tip portion, and 6a is provided on 4 side surfaces of the operating lever 1 tip end and movable to the tip thereof. A movable contact piece having a contact point 61a, 7a is a pair of common fixed terminals 70 and a fixed terminal which are bridged and conducted by the movable contact piece 6a.
A flexible printed circuit board 71a provided with a developed cross shape, 8 is a moderation ball, 9 is a spiral spring that acts to push out the moderation ball 8, and 10 is an operating lever 1 in cooperation with the moderation ball 8. Is a ball hole for accommodating the moderation ball 8 and the spring 9, 14 is a hemispherical spherical shaft portion whose center is the swing center of the operating lever 1, 25 Is the spherical bearing of case 2,
70 is a common fixed terminal provided on the four ends of the flexible printed circuit board 7a, 71a is a fixed terminal for an independent circuit, 75 is a support plate for the flexible printed circuit board 7a, 76 is a sub support plate, and 77 is a lead wire supported. It is an electrical component that penetrates the plate 75 and is soldered to the flexible printed circuit 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 limited by the shaft core 4 and the shaft bearing 21 so that it can swing only in a cross shape parallel to the side surface of the case 2. .

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 operating lever 1 is released, the operating lever 1 can be returned to the neutral position by the moderating ball 8, 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 Problem] A switch according to the present invention is provided with a pillow-shaped protruding portion on one side surface of a distal end portion of an operating lever, and a movable frame body into which the pillow-shaped protruding portion can be fitted and a switch substrate. The switch boards are provided in multiple layers, and the switch frame is fixed, the movable frame body can reciprocate in one direction on the switch board, and the movable frame body slides on fixed terminals of the switch board. One or more each of the formed sliding contact piece and the touch contact piece that comes into contact with and conducts to the fixed terminal on the switch board when pressed toward the switch board by the pillow-shaped protrusion are provided. It is composed.

[Operation] Since the switch of the present invention is configured as described above, when the operating lever is swung in two directions on a straight line,
By the movement of the movable frame, the sliding contact piece bridges / conducts the common terminal on the switch substrate and the pair of fixed terminals including the first or second fixed terminal. Further, with respect to the swing of the operation lever in the direction perpendicular to the two directions, the touch action is brought into contact with and electrically connected to the third fixed terminal, so that the switch action can be performed.

[Embodiment] FIG. 1 is a sectional view showing a switch according to an embodiment of the present invention, FIG. 2 is a perspective view showing the movable frame body 5 of FIG. 1, and FIG. 3 is a moderation slope 22 of FIG. It is a perspective view which shows the vicinity. The same or corresponding parts as in FIGS. 6 to 8 are indicated 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 frame body that supports the movable contact piece 6 made of plastic such as polyacetal. , 7 is a switch board composed of a printed board having a common fixed terminal 70 and other fixed terminals 71, 72, 73, and 11 is an operating lever 1
A guide claw provided at the tip of the operation lever 13, a pillow-like protrusion 13 on the lower surface of the tip of the operation lever 1, and a pillow-like protrusion for transmitting the movement of the operation lever 1 tip to the movable frame 5, 21 is a case 2 is a bearing provided at the abutting portion of the pressing plate 3, and 22 is a contact surface of the moderation ball 8 of the case 2, and as shown in FIG.
Direction is provided with a moderation slope, 23 is a slide surface on which the lower surface of the guide claw 11 is slidable, 24 is a moderation recess provided in the center of the moderation slope 22 perpendicular to the slide surface 23, and 32 is a presser. Two support claws are provided on the plate 3, 51 is a central opening of the movable frame body 5,
52 is a connecting wall that raises both side surfaces of the movable frame body 5, and 52a is 3
When the direction switch is assembled, both side ends of the pillow-shaped protrusion 13 are contact portions that contact the connecting wall 52.

The opposing support claws 32 of the pressing plate 3 are spread out against the elasticity thereof, so that the movable frame body 5 and the switch substrate 7 are separated from each other as shown in FIGS.
When mounted as shown in the figure, 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 ball 8 and the spring 9 and the case 2 are combined to assemble the switch.

FIG. 4 is a plan view showing the movable contact piece 6 of FIG. 1, and FIG. 5 is a partial plan view showing a part of the switch substrate 7 of FIG.
In the figure, 61 is a sliding contact piece whose root is bent so that a sliding contact 61a at its tip is pressed by the switch substrate 7, 62 is a protruding portion 62b at the center, and the tip is touched. Touch contact piece having contact 62a, 63 is movable contact piece 6
A mounting hole formed in the base of the movable frame 6 is fitted into a protrusion provided inside the upper portion of the movable frame 5 so that the movable contact piece 6 can be mounted.

The movable contact piece 6 is symmetrical with respect to the center line and has a sliding contact piece 61.
And two touch contacts 62 each. Therefore, conduction with the fixed terminals 70 to 73 of the switch substrate 7, which will be described next, can be made more reliable.

70 is a common fixed terminal provided at a position where the sliding contact 61a of the switch board 7 abuts and slides, and 71 and 72 are common fixed terminals 70
First and second fixed terminals provided on the left and right sides of the reference numeral 73, and a third fixed terminal 73 provided at a position where the touch contact 62a abuts. The sliding / contacting surfaces of the sliding contact 61a and the touch contact 62a are, for example, silver-plated or a contact material is attached, and the common fixed terminal 70 and each fixed terminal 71, 72, 73 are also attached. For example, silver plating is applied to improve conductivity and abrasion 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.
Supported by the shaft bearing.
Since 21 is a rectangle parallel to the longitudinal centerline of the tip of the operating lever 1, the action of this and the shaft core 4, and the guide claw
It is limited to a T-shape by 11 and the sliding surface 23 and the moderation recess 24. In FIG. 1, when the operation portion (not shown) of the operation lever 1 is swung in the direction perpendicular to the drawing, the pillow-shaped protruding portion 13 is formed.
Both side ends press the connecting wall 52 of the movable frame body 5 in the direction perpendicular to the drawing to reciprocate the movable frame body 5 in the direction of the arrow in FIG. When the operating portion of the operating lever 1 is swung upward in the drawing, the guide claw 11 at the tip of the operating lever 1 fits into the moderation recess 24, and the lower surface of the pillow-shaped protruding portion 13 contacts the protruding portion 62b of the touch contact piece 62. ,
Push the touch piece 62 downward. When the hand is released from the operation lever 1, the moderation ball 8 pressed by the spring 9
Slides down the moderation slope 22 toward the center, and the operating lever 1
To the neutral position.

In FIG. 1, when the operation lever 1 is swung in the vertical direction in the drawing, the sliding contact 61a bridges and connects the common fixed terminal 70 and the first fixed terminal 71. Further, when it is swung in the front direction, the common fixed terminal 70 and the second fixed terminal 72 are bridged and brought into conduction. Further, when it is swung upward in the drawing, the touch contact 62a comes into contact with the third fixed terminal 73. Since the sliding contact 61a is always in contact with and electrically connected to the common fixed terminal 70, the common fixed terminal 70 and the third fixed terminal 73 are electrically connected. As described above, the three types of circuits can be independently turned on.

It goes without saying that the common fixed terminal 70 may be omitted and the circuit connected to the common fixed terminal 70 and the movable contact piece 6 may be connected by a lead wire having bending resistance.

[Effects of the Invention] As described above, the present invention provides a pillow-shaped protruding portion on one side surface of the tip portion of the operating lever, a movable frame body into which the pillow-shaped protruding portion fits, and a switch overlaid on the movable frame body. A board is provided, and the movable frame is provided with a sliding contact piece formed so as to slide on a fixed terminal on the switch board, and a first part of the switch board when pressed downward by the pillow-shaped protrusion. Since the movable contact piece is provided with at least one touch contact piece that contacts and conducts with the fixed terminal of 3,
With a simple structure, 3
A switch is obtained that can turn on the type of circuit. In addition, 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 perspective view showing the movable frame body 5 of FIG. 1, and FIG. 3 shows the moderation slope 22 of FIG. 1 in the vicinity thereof. FIG. 4 is a perspective view, FIG. 4 is a plan view showing the movable contact piece 6 of FIG. 1, FIG. 5 is a partial plan view showing a part of the switch substrate 7 of FIG. 1, and FIG. 6 is a cross section showing a conventional switch. 7 and 8 are perspective views showing the flexible printed circuit board 7a, the support plate 75 and the auxiliary support plate 76 of FIG. 6, and FIG. 8 is a perspective view showing the movable contact piece 6a of FIG. In the figure, 1 ... operating lever, 2 ... case, 3 ...
Holding plate, 4 ... Shaft core, 5 ... Movable frame, 6,6a ... Movable contact piece, 7 ... Switch board, 7a ... Flexible printed board, 8 ... Moderation ball, 9 ... Spring, 10 ...... Moderation plate, 11 …… Guide claw, 12 …… Ball hole, 13 …… Pillow-like protrusion, 14 …… Spherical shaft, 21 …… Shaft bearing, 22 …… Moderation slope, 23 …… Sliding surface , 24 …… moderation recess, 25 …… spherical bearing, 32 …… supporting claw, 51 …… opening, 52 …… connecting wall, 52a…
… Abutting part, 61 …… Sliding contact piece, 61a …… Sliding contact, 62 ……
Touch contact piece, 62a …… Touch contact, 63 …… Mounting hole, 7
0 …… Common fixed terminal, 71,71a, 72,73 …… Fixed terminal, 75…
… Support plate, 76… Sub-support plate, 77… Electrical parts. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] 1. A pillow-shaped protruding portion is provided on one side surface of a tip portion of an operating lever, a movable frame body into which the pillow-shaped protruding portion can be fitted, and a switch substrate are provided in multiple layers, and the switch substrate is fixed. The movable frame body is capable of reciprocating in one direction on the switch board, and the movable frame body has a sliding contact piece formed to slide on a fixed terminal of the switch board,
A switch characterized by comprising one or more touch contact pieces each of which comes into contact with and conducts to a fixed terminal on the switch substrate when pressed toward the switch substrate by the pillow-shaped protrusion.