Conveyance seat

A conveyance seat whose state is changeable when a rear load is input to a conveyance, comprising:

• a movable portion configured to move from an initial position in association with the state change;
• and
• a movement restriction portion configured to restrict movement of the movable portion;
• wherein in a case where an occupant load on the conveyance seat from an occupant of the conveyance in association with input of the rear load changes according to a feature value regarding a body of the occupant,
• when the occupant load is less than a predetermined value and the movable portion moves from the initial position to reach a first position, the movement restriction portion holds the movable portion at the first position, and
• when the occupant load is equal to or greater than the predetermined value, the movable portion further moves, after having reached the first position, toward a second position beyond movement restriction by the movement restriction portion, the second position being apart further from the initial position than the first position;
• wherein the movement restriction portion is a contact portion configured to contact the movable portion when the movable portion reaches the first position, thereby restricting the movement of the movable portion,
• the contact portion deforms when pressed with a pressing force equal to or greater than a threshold, and
• when the occupant load is equal to or greater than the predetermined value, the movable portion deforms, in contact with the contact portion at the first position, the contact portion by pressing the contact portion with the pressing force equal to or greater than the threshold, and deformation of the contact portion allows the movable portion to move toward the second position beyond a contact state with the contact portion.

A conveyance seat whose state is changeable when a rear load is input to a conveyance, comprising:

• a movable portion configured to move from an initial position in association with the state change;
• and
• a movement restriction portion configured to restrict movement of the movable portion;
• wherein in a case where an occupant load on the conveyance seat from an occupant of the conveyance in association with input of the rear load changes according to a feature value regarding a body of the occupant,
• when the occupant load is less than a predetermined value and the movable portion moves from the initial position to reach a first position, the movement restriction portion holds the movable portion at the first position, and
• when the occupant load is equal to or greater than the predetermined value, the movable portion further moves, after having reached the first position, toward a second position beyond movement restriction by the movement restriction portion, the second position being apart further from the initial position than the first position;
• wherein the movable portion has a contact target portion contacting the movement restriction portion when the movable portion reaches the first position,
• the contact target portion deforms when pressed with a pressing force equal to or greater than a threshold, and
• when the occupant load is equal to or greater than the predetermined value and the movable portion is at the first position, the contact target portion is deformed by pressed from the movement restriction portion with the pressing force equal to or greater than the threshold, and deformation of the contact target portion allows the movable portion to move toward the second position beyond the movement restriction by the movement restriction portion.