Abstract: A step device for a vehicle includes a movable step supported under a door opening, and a coupling member supported by a sliding door that opens and closes in a vehicle front-rear direction with a shifting zone in a vehicle width direction. The movable step is provided with a guide rail that opens downward and extends in the vehicle front-rear direction. The coupling member includes: a fixed member fixed to the sliding door; an arm member coupled to the fixed member; a guide roller disposed inside the guide rail; and an urging member configured to apply to the arm member an urging force in a direction in which the guide roller turns upward.

Abstract: A step device for a vehicle includes a movable step and a coupling member. The movable step includes a guide rail. The coupling member is configured to cause the movable step to move from a deployed position to a retracted position as a engaging part comes into sliding contact with a side wall of the guide rail that is located on an inner side in a vehicle width direction and, while pressing the side wall, moves inside the guide rail in a direction of closing a sliding door. The guide rail is configured such that a terminal end region on a closing side including a terminal end position at which the engaging part is located when the sliding door is fully closed constitutes a closing-side free running zone in which the engaging part does not press either of the side walls.

Abstract: A step device for a vehicle includes: a movable step supported under a door opening; a coupling member that, in a state of being supported by a sliding door, engages with the movable step to move the movable step in a vehicle width direction in conjunction with opening and closing of the sliding door; a support arm that has a first pivot-joint point relative to a vehicle body and a second pivot-joint point relative to the movable step, and supports the movable step toward an upper side; and a pressure bearing member that is provided at a position between the first pivot-joint point and the second pivot-joint point and bears the load of the support arm by coming into sliding contact with the support arm.

Abstract: A step device for a vehicle includes: a movable step supported under a door opening; a coupling member that, in a state of being supported by a sliding door, engages with the movable step to move the movable step in a vehicle width direction in conjunction with opening and closing of the sliding door; a support arm that has a first pivot-joint point relative to a vehicle body and a second pivot-joint point relative to the movable step, and supports the movable step toward an upper side; and a cover member that is fixed to a lower surface of the vehicle body so as to define a housing space opening toward an outer side in the vehicle width direction and to cover the lower side of the support arm when the movable step is in a retracted position.

Abstract: A step device for a vehicle includes: a movable step supported under a door opening; a coupling member that moves the movable step in a vehicle width direction in conjunction with opening and closing of a sliding door; and a sub-step that is disposed under the door opening. The movable step moves under the sub-step toward an outer side in the vehicle width direction so as to be disposed in a deployed position in which the movable step protrudes from the sub-step toward the outer side in the vehicle width direction. The sub-step has an overlapping region that covers an upper side of the movable step in a state where the movable step is disposed in the deployed position.

Abstract: A step device for a vehicle includes a movable step supported under a door opening, and a coupling member supported by a sliding door that opens and closes in a vehicle front-rear direction with a shifting zone in a vehicle width direction. The movable step is provided with a guide rail that opens downward and extends in the vehicle front-rear direction. The coupling member includes: a fixed member fixed to the sliding door; an arm member coupled to the fixed member; a guide roller disposed inside the guide rail; and an urging member configured to apply to the arm member an urging force in a direction in which the guide roller turns upward.

Abstract: A step device for a vehicle includes: a movable step supported under a door opening; a coupling member that moves the movable step in a vehicle width direction in conjunction with opening and closing of a sliding door; and a sub-step that is disposed under the door opening. The movable step moves under the sub-step toward an outer side in the vehicle width direction so as to be disposed in a deployed position in which the movable step protrudes from the sub-step toward the outer side in the vehicle width direction. The sub-step has an overlapping region that covers an upper side of the movable step in a state where the movable step is disposed in the deployed position.

Abstract: A step device for a vehicle includes: a movable step supported under a door opening; a coupling member that, in a state of being supported by a sliding door, engages with the movable step to move the movable step in a vehicle width direction in conjunction with opening and closing of the sliding door; a support arm that has a first pivot-joint point relative to a vehicle body and a second pivot-joint point relative to the movable step, and supports the movable step toward an upper side; and a cover member that is fixed to a lower surface of the vehicle body so as to define a housing space opening toward an outer side in the vehicle width direction and to cover the lower side of the support arm when the movable step is in a retracted position.

Abstract: A step device for a vehicle includes: a movable step supported under a door opening; a coupling member that, in a state of being supported by a sliding door, engages with the movable step to move the movable step in a vehicle width direction in conjunction with opening and closing of the sliding door; a support arm that has a first pivot-joint point relative to a vehicle body and a second pivot-joint point relative to the movable step, and supports the movable step toward an upper side; and a pressure bearing member that is provided at a position between the first pivot-joint point and the second pivot-joint point and bears the load of the support arm by coming into sliding contact with the support arm.

Abstract: A step device for a vehicle includes a movable step and a coupling member. The movable step includes a guide rail. The coupling member is configured to cause the movable step to move from a deployed position to a retracted position as a engaging part comes into sliding contact with a side wall of the guide rail that is located on an inner side in a vehicle width direction and, while pressing the side wall, moves inside the guide rail in a direction of closing a sliding door. The guide rail is configured such that a terminal end region on a closing side including a terminal end position at which the engaging part is located when the sliding door is fully closed constitutes a closing-side free running zone in which the engaging part does not press either of the side walls.

Abstract: A rotation and stop retention switching apparatus includes a rotary member being rotary driven, a slider being movable in an axial direction of a rotary axis of the rotary member, a transmission member transmitting a rotary force of the rotary member to the slider, a biasing member biasing the slider in the axial direction of the rotary axis, and a stopper member coming in contact with the slider being biased by the biasing member. The rotary force of the rotary member is transmitted to the slider via the transmission member in a state where the slider is disengaged from the stopper member by a movement of the slider in the axial direction of the rotary axis, the movement caused by the translational force of the slider with a use of the transmission member against a biasing force of the biasing member.