Rocker-type electrical switch
First Claim
Patent Images
1. An electrical rocker switch comprising:
- a cylindrical case;
a knob swingably supported at one end of the case;
a movable contact holder adapted to interlock with swinging action of the knob to move in a direction perpendicular to a longitudinal direction of the case, the contact holder including a plurality of movable contacts for switching a plurality of circuits;
board provided with a plurality of stationary contacts to contact with the movable contacts;
a rocking member provided within said case for connecting the knob to the contact holder, said rocking member including a rocking arm integrally formed therewith and extending in the longitudinal direction of the case adjacent an inside surface of the case, with a tip of the rocking arm engaging the contact holder; and
a stabilizing mechanism located between the knob and the contact holder for stabilizing the rocking member, said stabilizing mechanism including an engaging groove formed in a portion of the case, a ball movable along the engaging groove, and a coil spring for biasing the ball into the engaging groove.
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Abstract
A rocking member is swingably supported on one opening side of a cylindrical case, and a knob is attached to the rocking member. The rocking member is provided with a rocking arm extending therefrom in the longitudinal direction of the case. The rocking arm has a tip section for engaging projections of a contact holder. The contact holder is moved in a direction perpendicular to the longitudinal direction of the case by the swinging action of the rocking arm, thereby switching a plurality of circuits. As a result, the switch can be made compact and its structure can be simplified.
19 Citations
20 Claims
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1. An electrical rocker switch comprising:
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a cylindrical case; a knob swingably supported at one end of the case; a movable contact holder adapted to interlock with swinging action of the knob to move in a direction perpendicular to a longitudinal direction of the case, the contact holder including a plurality of movable contacts for switching a plurality of circuits; board provided with a plurality of stationary contacts to contact with the movable contacts; a rocking member provided within said case for connecting the knob to the contact holder, said rocking member including a rocking arm integrally formed therewith and extending in the longitudinal direction of the case adjacent an inside surface of the case, with a tip of the rocking arm engaging the contact holder; and a stabilizing mechanism located between the knob and the contact holder for stabilizing the rocking member, said stabilizing mechanism including an engaging groove formed in a portion of the case, a ball movable along the engaging groove, and a coil spring for biasing the ball into the engaging groove. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A switch comprising:
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a cylindrical case; a knob swingably supported at one end of the case; and a contact holder adapted to interlock with the swinging action of the knob to move in a direction perpendicular to the longitudinal direction of the case, thereby switching a plurality of circuits, wherein a rocking member for connecting the knob to the contact holder and an energizing mechanism for energizing the rocking member are provided, the energizing mechanism comprising an engaging groove and a coil spring for energizing a ball into the engaging groove.
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Specification