Vehicle seat

A vehicle seat having a mechanism for moving a headrest upon rear-end collision, comprising:

• a headrest comprising right and left pillars;
• a pressure receiving member for receiving a load of a rearward movement of an occupant;
• a transmitting element for transmitting the load received by the pressure receiving member to a headrest side;
• right and left headrest supporting members for supporting the right and left pillars of the headrest;
• and
• a biasing member that biases the headrest;
• wherein:
• each of the right and left pillars includes a protruding portion that protrudes downward from a lower end of the respective headrest supporting member;
• and
• the biasing member is disposed at a same height as and between the right and left protruding portions.

A vehicle seat having a mechanism for moving a headrest upon rear-end collision, comprising:

• a headrest comprising right and left pillars;
• a pressure receiving member for receiving a load of a rearward movement of an occupant;
• a transmitting element for transmitting the load received by the pressure receiving member to a headrest side;
• right and left headrest supporting members for supporting the right and left pillars of the headrest;
• and
• a plurality of springs that bias the headrest;
• wherein:
• the plurality of springs are disposed along and between the right and left pillars.

A vehicle seat having a mechanism for moving a headrest upon rear-end collision, comprising:

• a headrest comprising right and left pillars;
• a pressure receiving member for receiving a load of a rearward movement of an occupant;
• a transmitting element for transmitting the load received by the pressure receiving member to a headrest side;
• right and left headrest supporting members for supporting the right and left pillars of the headrest;
• a biasing member that biases the headrest;
• right and left side frames that constitute a seat-back frame;
• and
• a connecting member that connects the right and left side frames with each other;
• wherein:
• the biasing member is disposed between the right and left pillars;
• the right and left headrest supporting members comprise right and left pillar guide members for inserting the pillars of the headrest therein, the pillar guide members are attached to a headrest supporting frame extending in a right-to-left direction;
• an upper end of the biasing member is attached to the headrest supporting frame;
• a lower end of the biasing member is attached to the connecting member;
• and
• the connecting member is provided with a biasing member attachment portion to which the lower end of the biasing member is attached and a movement regulation portion for regulating movement of the biasing member in a right-to-left direction.

A vehicle seat having a mechanism for moving a headrest upon rear-end collision, comprising:

• a seat-back frame that comprises right and left side frames and an upper frame connecting between the right and left side frames;
• a headrest supporting frame extending in a right-to-left direction that is movably connected to the side frames;
• a headrest comprising right and left pillars;
• a pressure receiving member for receiving a load of a rearward movement of an occupant;
• a transmitting element for transmitting the load received by the pressure receiving member to a headrest side;
• right and left headrest supporting members for supporting the right and left pillars of the headrest;
• and
• a biasing member that biases the headrest;
• wherein:
• the biasing member is disposed between the right and left pillars;
• the right and left headrest supporting members are attached to the headrest supporting frame;
• the biasing member is disposed below the headrest supporting frame and above the pressure receiving member;
• and
• the biasing member biases the headrest toward the direction of moving the headrest to an upright position.

A vehicle seat having a mechanism for moving a headrest upon rear-end collision, comprising:

• a headrest comprising right and left pillars;
• a pressure receiving member for receiving a load of a rearward movement of an occupant;
• a transmitting element for transmitting the load received by the pressure receiving member to a headrest side;
• right and left headrest supporting members for supporting the right and left pillars of the headrest;
• and
• a biasing member that biases the headrest;
• wherein:
• the biasing member is disposed between the right and left pillars;
• the right and left headrest supporting members are attached to a headrest supporting frame extending in a right-to-left direction;
• the biasing member is disposed below the headrest supporting frame and above the pressure receiving member;
• the right and left headrest supporting members comprise right and left pillar guide members for inserting the pillars of the headrest therein, the pillar guide members are attached to the headrest supporting frame;
• the headrest supporting frame is provided with right and left downward extending portions that extend downward at right and left lateral ends;
• and
• the biasing member is disposed at a same height as the downward extending portions.