Vehicle seat with cushion plate

A vehicle seat comprising:

• a seat back frame;
• a headrest for supporting a head of a seat occupant, wherein the headrest is forwardly movably connected to the seat back frame;
• a rear-end collision detector mounted to the seat back frame at a position behind the seat occupant, wherein the rear-end collision detector detects rearward movement of the seat occupant and moves rearward;
• and the rear-end collision detector is operatively connected to the headrest such that the rearward movement of the rear-end collision detector forwardly moves the headrest;
• a headrest support for supporting the headrest that extends in a horizontal direction, wherein the headrest support is movably connected to a side frame that constitutes a side portion of the seat back frame through a link member;
• a bracket mounted to the side frame, wherein a link support shaft is mounted to the bracket;
• a front extending portion inwardly extending in a right-to-left direction and formed at a front end of a lateral face of the side frame;
• and
• a rear extending portion inwardly extending in the right-to-left direction and formed at a rear end of the lateral face of the side frame;
• wherein:
• a concave portion is formed at a portion of an inner end portion of the front extending portion of the side frame that faces at least a part of the bracket;
• the concave portion is disposed at a position facing the link support shaft;
• the link member includes a link support portion that is supported by the link support shaft, a first arm that extends downward from the link support portion, and a second arm that extends backward from the link support portion;
• the link member is movably mounted to the link support shaft such that the rearward movement of the seat occupant moves the second arm towards the concave portion;
• and
• a single horizontal plane intersects the concave portion, at least a part of the bracket, and the link support shaft.

A vehicle seat comprising:

• a seat back frame;
• a headrest for supporting a head of a seat occupant, wherein the headrest is forwardly movably connected to the seat back frame;
• a rear-end collision detector mounted to the seat back frame at a position behind the seat occupant, wherein the rear-end collision detector detects rearward movement of the seat occupant and moves rearward;
• and the rear-end collision detector is operatively connected to the headrest such that the rearward movement of the rear-end collision detector forwardly moves the headrest;
• a headrest support for supporting the headrest that extends in a horizontal direction, wherein the headrest support is movably connected to a side frame that constitutes a side portion of the seat back frame through a link member;
• a bracket mounted to the side frame, wherein a link support shaft is mounted to the bracket and wherein the link member is movably mounted to the link support shaft;
• a front extending portion inwardly extending in a right-to-left direction and formed at a front end of a lateral face of the side frame;
• and
• a rear extending portion inwardly extending in the right-to-left direction and formed at a rear end of the lateral face of the side frame;
• wherein:
• a concave portion is formed at a portion of an inner end portion of the front extending portion of the side frame that faces at least a part of the bracket;
• the concave portion is disposed at a position facing the link support shaft;
• a lower end portion of the link member is connected to the rear-end collision detector through a connecting shaft;
• the link member is provided with a first hole for inserting the link support shaft and a second hole for inserting the connecting shaft;
• a part of the link support shaft to be inserted through the first hole is larger in diameter than a part of the connecting shaft to be inserted through the second hole;
• and
• a single horizontal plane intersects the concave portion, at least a part of the bracket, and the link support shaft.

A vehicle seat comprising:

• a seat back frame;
• a headrest for supporting a head of a seat occupant, wherein the headrest is forwardly movably connected to the seat back frame;
• a rear-end collision detector mounted to the seat back frame at a position behind the seat occupant, wherein the rear-end collision detector detects rearward movement of the seat occupant and moves rearward;
• and the rear-end collision detector is operatively connected to the headrest such that the rearward movement of the rear-end collision detector forwardly moves the headrest;
• a headrest support for supporting the headrest that extends in a horizontal direction, wherein the headrest support is movably connected to a side frame that constitutes a side portion of the seat back frame through a link member;
• a bracket mounted to the side frame, wherein a link support shaft is mounted to the bracket;
• a front extending portion inwardly extending in a right-to-left direction and formed at a front end of a lateral face of the side frame;
• and
• a rear extending portion inwardly extending in the right-to-left direction and formed at a rear end of the lateral face of the side frame;
• wherein:
• a concave portion is formed at a portion of an inner end portion of the front extending portion of the side frame that faces at least a part of the bracket in a front-to-back direction;
• the concave portion is disposed in front of the link support shaft;
• the link member includes a link support portion that is supported by the link support shaft, a first arm that extends downward from the link support portion, and a second arm that extends backward from the link support portion;
• the link member is movably mounted to the link support shaft such that the rearward movement of the seat occupant moves the second arm towards the concave portion;
• and
• a single horizontal plane intersects the concave portion, at least a part of the bracket, and the link support shaft.