JPS636639U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the structure of an embodiment of this invention, and FIGS. 2A and 2B are perspective views showing the structures of a lid body and an insulating base, respectively, in an embodiment of this invention.
3 is a cross-sectional view taken along the line CC in FIG. 1, and FIG. 4A is a plane showing the structure of the original plate of the switch shaft, first and second fixed contact pieces used in the manufacturing process in the embodiment of this invention. Figure 4B is a sectional view taken along line B-B in Figure 4A, and Figure 5A is a state in which the switch shaft and the first and second fixed contact pieces are attached to the insulating base during the manufacturing process of the embodiment of this invention. 5th plan view showing
Figure B is a sectional view taken along line AA in Figure 5A, Figures 6 and 7 are principle plan views showing each switching state of the switch in the embodiment of this invention, and Figure 8 is a rotation FIG. 9 is a perspective view showing the configuration of a switching piece used in a conventionally proposed rotary type switch; FIG. 10 is a diagram showing the configuration of a switching piece used in an embodiment of this invention. The perspective view, FIG. 11, and FIG. 12 are principle plan views showing each switching state showing the principle of this invention. 36: Lid, 37: Insulating base, 41: Communication hole,
42: Side piece, 45: Projection part, 46: Engagement part, 47
: recess, 48: switch shaft, 49: first fixed contact piece, 50: second fixed contact piece, 55: original plate, 56,
57: Common piece, 59: First plate, 60: Second plate, 61: Third plate, 64: Switching piece, 66:
First movable contact piece, 67: Second movable contact piece, 68:
Engagement hole, 70: Mounting hole, 71: Switching spring, 74:
Fitting recess, 75: Engagement pin.

Claims (1)

[Scope of Claim for Utility Model Registration] A switch shaft and first and second fixed contact pieces are disposed protrudingly sandwiched between the switch shaft and the switch shaft, and a switching piece is rotatably attached to the switch shaft, The switching piece is provided with first and second movable contact pieces, an engagement hole is formed in the first or second movable contact piece, an engagement part is formed in the insulating base, and the switching piece A switching spring is engaged between the engaging hole and the engaging portion, and the switching piece is rotated by a rotational operation of an operator attached to the insulating base, and the switching spring is reversed. In a rotary switch in which a switching operation is performed between the first and second fixed contact pieces and the first and second movable contact pieces, the switch shaft is provided near the periphery of the insulating base. the first and second fixed contact pieces are respectively provided in the vicinity of the switch shaft with the switch shaft in between, and the engaging portion is aligned with a straight line connecting the switch shaft of the insulating base and the center of the operator. In a region provided with a facing fixed contact piece that faces the movable contact piece in which the engagement hole is formed, the opposed fixed contact piece is parallel to a first peripheral edge of the insulating base disposed nearby. A rotary switch, characterized in that the rotary switch is provided closer to the first peripheral edge than a first tangent tangent to the outer circumferential circle of the operator on the side away from the first peripheral edge.