Switch

Abstract

The present invention provides a detection switch structure permitting a reduction in height of a switch body without sacrificing the springing performance characteristics of a switching contact formed of a clip-shaped plate spring, and capable of stabilizing the operation by causing a manipulating lever and a movable contact consisting of a coil spring to turn around the same rotational center. It comprises: a housing 1 having an accommodating section 1a; a common contact 2 and a switching contact 3 arranged along with each other on an inner bottom face of the accommodating section 1a; a movable contact 4 consisting of a coil spring, having a first arm 4b in contact with the common contact 2 all the time and a second arm 4c capable of coming into and going out of contact with the switching contact 3; a manipulating lever 5 having an operating section 5b and rotatably holding the second arm 4c of the movable contact 4; and a cover 6 covering the top of the housing 1, wherein the switching contact 3 has a contact part 3b bent in a clip shape with which the second arm 4c is to be in sliding contact, this contact part 3b is formed in parallel to the inner bottom face of the accommodating section, and the contact 3b part is provided with a guide 3d, projecting above the contact part 3b, for guiding the sliding contact of the second arm 4c.

Description

technical field [0001] The present invention relates to a switch device used as a detection switch for mechanical driving of electronic equipment, and more particularly to a structure using a contact portion such as a coil spring or a leaf spring. Background technique [0002] In the conventional detection switch structure, it is known to use a coil spring and a leaf spring for the contact part. The contact portion structure of this conventional detection switch uses a coil spring as a movable contact, an arm is extended from the coil spring, the arm is used as a movable contact, and the coil spring is used as a spring member for restoring the operation lever. use. [0003] When the coil spring is mounted on a switch case or the like, the coiled portion of the coil spring is connected to a common contact fixed to the case or the like and arranged on the inner bottom surface. In addition, a bent portion is provided on an arm extending from the spiral portion, and the bent p...

AI Technical Summary

Problems solved by technology

[0005] However, the problem with the structure of the above-mentioned existing detection switch is that since the transfer contact that is in contact with the movable contact is formed by restoring the clamp-shaped leaf spring from the inner bottom surface of the housing, in order to ensure the necessary contact pressure and fatigue Due to the spring characteristics such as spring characteristics, a certain height is required, so the height of the switch body becomes high, and it is difficult to realize miniaturization of the product

[0006] In addition, since the operating width (sliding width) occurs at the contact portion between the arm of the coil spring of the movable contact and the operating lever, there is a problem of unstable operation due to sliding friction.

Images