Moving object
A moving object includes a moving object main body, a resistance structure which can be switched at least from a retracted state to a deployed state, and a holding structure which holds the resistance structure in the retracted state. The resistance structure includes an engagement recess. The holding structure includes a holding main body portion supported by the moving object main body, and a rotating body configured to be engaged with the engagement recess in the retracted state of the resistance structure. When a force equal to or larger than a predetermined force is applied to the resistance structure, engagement of the rotating body with the engagement recess is released, and the resistance structure is switched from the retracted state to the deployed state.
1 . A moving object comprising:
a moving object main body;
a resistance structure including a first end portion and a second end portion, which are opposite to each other, the first end portion pivotably attached to the moving object main body, the resistance structure switchable at least from a retracted state to a deployed state by pivoting in a radial direction of the moving object main body; and
a holding structure configured to be engaged with the second end portion of the resistance structure to thereby hold the resistance structure in the retracted state,
wherein the second end portion of the resistance structure includes an engagement recess that is recessed toward the first end portion,
wherein the holding structure includes:
a holding main body portion supported by the moving object main body; and
a rotating body rotatably supported by the holding main body portion and configured to be engaged with the engagement recess in the retracted state of the resistance structure, and
wherein, when a force equal to or greater than a predetermined force is applied to the resistance structure in the radial direction by an actuator, engagement of the rotating body with the engagement recess is released to thereby allow the resistance structure to move from the retracted state to the deployed state.
2 . The moving object according to claim 1 , wherein
when the force equal to or greater than the predetermined force is applied to the resistance structure, the holding main body portion is deformed, and the rotating body is disengaged from the engagement recess.
3 . The moving object according to claim 1 , wherein
a part of the holding main body portion is positioned inside the moving object main body.
4 . The moving object according to claim 3 , wherein
the moving object main body includes a receiving groove that is recessed from an outer surface of the moving object main body and configured to receive at least a part of the resistance structure in the retracted state of the resistance structure,
the receiving groove includes a cutout portion that penetrates the receiving groove, and
the holding structure holds the resistance structure via the cutout portion.
5 . The moving object according to claim 4 , wherein
the receiving groove includes:
a bottom wall portion located at a bottom of the receiving groove in a depth direction of the receiving groove; and
a side wall that connects the bottom wall portion and the outer surface and faces an outer circumferential surface of the resistance structure in the retracted state of the resistance structure, and
wherein, in the retracted state of the resistance structure, the rotating body is positioned between an opening of the receiving groove and the bottom wall portion.
6 . The moving object according to claim 5 , wherein
the cutout portion is provided across the bottom wall portion and the side wall.
7 . The moving object according to claim 1 , further comprising
the actuator coupled to the first end portion of the resistance structure to switch the resistance structure from the retracted state to the deployed state.
8 . The moving object according to claim 1 ,
wherein the holding main body portion includes a support end portion that is rotatably supported within the moving object main body,
wherein, in the retracted state of the resistance structure, part of an outer wall of the moving object main body is present between the support end portion and the resistance structure in the radial direction of the moving object main body.
9 . The moving object according to claim 1 , wherein
the resistance structure continues being driven in the radial direction by the actuator after the engagement of the rotating body with the engagement recess is released, whereby the resistance structure moves to the deployed state.
10 . A moving object comprising:
a moving object main body;
a resistance structure including a first end portion and a second end portion, which are opposite to each other, the first end portion pivotably attached to the moving object main body, the resistance structure switchable at least from a retracted state to a deployed state by pivoting in a radial direction of the moving object main body; and
a holding structure configured to be engaged with the second end portion of the resistance structure to thereby hold the resistance structure in the retracted state,
wherein the second end portion of the resistance structure includes an engagement recess that is recessed toward the first end portion,
wherein the holding structure includes:
a holding main body portion supported by the moving object main body; and
a rotating body rotatably supported by the holding main body portion and configured to be engaged with the engagement recess in the retracted state of the resistance structure, and
wherein, when a force equal to or greater than a predetermined force is applied to the resistance structure in the radial direction, engagement of the rotating body with the engagement recess is released to thereby allow the resistance structure to move from the retracted state to the deployed state, wherein
the engagement recess includes an inclined portion that is inclined in a direction in which the rotating body moves relatively and inclined toward an inside of the moving object main body in a direction from a bottom of the engagement recess toward an opening of the engagement recess, in the retracted state of the resistance structure, and
the rotating body abuts against the inclined portion in the retracted state of the resistance structure.
11 . A moving object comprising:
a moving object main body;
a resistance structure including a first end portion and a second end portion, which are opposite to each other, the first end portion pivotably attached to the moving object main body, the resistance structure switchable at least from a retracted state to a deployed state; and
a holding structure configured to be engaged with the second end portion of the resistance structure to thereby hold the resistance structure in the retracted state,
wherein the second end portion of the resistance structure includes an engagement recess that is recessed toward the first end portion,
wherein the holding structure includes:
a holding main body portion supported by the moving object main body; and
a rotating body rotatably supported by the holding main body portion and configured to be engaged with the engagement recess in the retracted state of the resistance structure, and
wherein, when a force equal to or greater than a predetermined force is applied to the resistance structure, engagement of the rotating body with the engagement recess is released to thereby switch the resistance structure from the retracted state to the deployed state, wherein
the holding main body portion includes:
a lever pivotably supported by the moving object main body; and
an elastic member configured to bias the lever in a manner so that the lever presses the rotating body against the engagement recess.