Abstract: A signal output part of a first sensor configured to output a signal corresponding to an operation state of a mechanism for locking rotation of a steering shaft is mounted on a first circuit board. A signal output part of a second sensor configured to output a signal corresponding to an operation state of a mechanism for detecting a rotation angle of the steering shaft is mounted on a second circuit board. A connector electrically connects the first circuit board and the second circuit board while allowing relative displacement therebetween.

Abstract: A support is adapted to be coupled to a steering shaft configured to change a traveling direction of a vehicle. A switch is coupled to the support and configured to output a signal in accordance with an operation of a driver of the vehicle. A processing unit includes a connector configured to accept connection of a cable for transmitting the signal, and a processor configured to process the signal. At least one snap-fit structure configured to allow attachment and detachment of the processing unit from below the support under a condition that the switch is still coupled to the support. The connector faces downward under a condition that the processing unit is attached to the support.

Abstract: A signal output part of a first sensor configured to output a signal corresponding to an operation state of a mechanism for locking rotation of a steering shaft is mounted on a first circuit board. A signal output part of a second sensor configured to output a signal corresponding to an operation state of a mechanism for detecting a rotation angle of the steering shaft is mounted on a second circuit board. A connector electrically connects the first circuit board and the second circuit board while allowing relative displacement therebetween.

Abstract: A rotary structural body includes a rotation body that rotates in cooperation with a rotation shaft. The rotation body includes an engaging portion engaged with an engaged portion arranged on one of the rotation shaft and a transmission member that transmits rotation of the rotation shaft to the rotation body. The rotary structural body further includes a detector that detects a rotation angle of the rotation shaft in accordance with rotation of the rotation body and a support arranged on the engaged portion to extend across a circumferential gap between the engaged portion and the engaging portion.

Abstract: A rotary structural body includes a rotation body that rotates in cooperation with a rotation shaft. The rotation body includes an engaging portion engaged with an engaged portion arranged on one of the rotation shaft and a transmission member that transmits rotation of the rotation shaft to the rotation body. The rotary structural body further includes a detector that detects a rotation angle of the rotation shaft in accordance with rotation of the rotation body and a support arranged on the engaged portion to extend across a circumferential gap between the engaged portion and the engaging portion.

Abstract: A rotary-type switch for controlling vehicle lighting is provided. The rotary-type switch may include a housing portion that includes multiple positions that respectively correspond to multiple operation modes and a rotary dial being configured to rotate relative to the housing portion to select an operation mode of the rotary-type switch based on a position identified by a selection indicator. A controller is configured to control and operation mode of the rotary-type switch based on a vehicular power state and when the vehicular power state is OFF, regardless of the position of the selection indicator corresponding to the selected operation mode on either the housing portion or the rotary dial, the controller controls the rotary-type switch to automatically set the operation mode to that defined by an initial-operation position corresponding to a predetermined initial-operation mode.

Abstract: A rotary-type switch for controlling vehicle lighting is provided. The rotary-type switch may include a housing portion that includes multiple positions that respectively correspond to multiple operation modes and a rotary dial being configured to rotate relative to the housing portion to select an operation mode of the rotary-type switch based on a position identified by a selection indicator. A controller is configured to control and operation mode of the rotary-type switch based on a vehicular power state and when the vehicular power state is OFF, regardless of the position of the selection indicator corresponding to the selected operation mode on either the housing portion or the rotary dial, the controller controls the rotary-type switch to automatically set the operation mode to that defined by an initial-operation position corresponding to a predetermined initial-operation mode.