In one aspect, a switch assembly includes a switch housing that includes one or more compound switches, each comprising a first switch and a second switch embedded within the first switch. Each compound switch includes a first subassembly of constituent parts that includes the first switch and implements a first switching function. Each compound switch also includes a second subassembly of constituent parts embedded within and carried by the first subassembly of constituent parts. The second subassembly of constituent parts includes the second switch and implements a second switching function that is distinct from the first switching function. The switch assembly includes one or more extended plungers and corresponding guiding features that advantageously allow for the use of a single keypad and PCB with respect to the compound switches.

In a power seat operation device, a cam portion formed at a dial base has valleys and peaks that are alternately arranged in a row along a rotation direction of a dial so as to form an undulation in a radial direction. A slider is supported by the dial so as to be slidable in the radial direction. The slider is abutted against the cam portion by biasing force from a roller spring and fits into one out of the valleys so as to retain the dial at one of the rotary positions. During rotational operation of the dial, the slider crosses over at least one out of the peaks while elastically deforming the roller spring and sliding with respect to the dial.

In one aspect, a switch assembly includes two or more switch modules of different types and comprising different switch module subassemblies. The switch assembly also includes a switch housing having two or more sets of features integrally molded or formed in an underside or interior surface of the switch housing. Each set of features corresponds to a respective one of the different switch module subassemblies and comprises alignment and support features for the respective switch module subassembly.

An input device has operation shafts whose tips project through a first elongate hole and a second elongate hole formed through an upper plate portion of a case main body and that are movable along the upper plate portion of the case main body. An operation knob is movably attached to the tips of the operation shafts. The case main body is provided with elastic support pieces that deform following the movement of the operation knob and elastically support the operation knob.

A switch device includes: a printed circuit board provided with a connector; a rubber sheet; an operating knob; an operating mechanism; an operating mechanism plate; and a housing having a side surface provided with an insertion hole and a bottom surface provided with a discharge hole. The rubber sheet has a connector portion discharge path configured to guide the liquid entering the housing through the insertion hole to the discharge hole. The connector portion discharge path has one end connected to a part of the rubber sheet covering the connector, extends to be inclined from the one end toward the discharge hole provided on the bottom surface, and has the other end formed in a vicinity of the bottom surface and separated from the rubber sheet covering the connector. A gap exists between a lower end portion of the rubber sheet covering the connector and the other end.

A switch assembly includes an actuator having an axis of rotation and defining a groove. An interface plate defines a cantilever having a fixed end and a free end, wherein the free end is disposed within the groove of the actuator. The switch assembly further includes a force sensor coupled to the interface plate adjacent the fixed end of the actuator. When a first force causes the actuator to rotate about the axis of rotation, the actuator exerts a second force on the cantilever causing the cantilever to bend about the fixed end. The bending of the cantilever about the fixed end induces a third force exerted on the fixed end which is measured by the force sensor to determine whether the switch has been intentionally actuated by an operator.