Vehicle seat
Provided is a vehicle seat with an improved rigidity of a seat-base side frame, in which a load from a shoulder anchor portion can be dispersed. The vehicle seat includes: a seatback frame which includes side frames, a shoulder anchor portion which is disposed in the upper portion of the side frame, and a pair of seat-base side frames which is disposed below the side frames; in which one seat-base side frame which is connected to the lower portion of the side frame includes a lower seat-base side frame and an upper seat-base side frame connected to the upper portion thereof, the upper seat-base side frame includes an upper frame reinforcement portion formed along a shape of an edge in a connection portion, and the lower seat-base side frame includes lower frame reinforcement portions formed along a shape of an upper edge in the connection portion.
1. A vehicle seat comprising:
a seatback frame including a pair of side frames and an upper frame connecting the pair of side frames to each other at an upper portions thereof;
a shoulder anchor portion provided in an upper portion of one of side frames so that a shoulder belt portion of a seat belt is inserted therethrough; and
a pair of seat-base side frames disposed below the pair of side frames,
wherein:
one of the seat-base side frames connected to a lower portion of the one of side frames includes a lower seat-base side frame which extends in a front to back direction and an upper seat-base side frame which is connected to an upper portion of a lower seat-base side frame,
an upper frame reinforcement portion is formed along an edge shape of the upper seat-base side frame in a connection portion of the upper seat-base side frame and the lower seat-base side frame,
a lower frame reinforcement portion is formed along an upper edge shape of the lower seat-base side frame in the connection portion with the lower seat-base side frame,
the upper frame reinforcement portion includes an upper frame bulged portion being bulged along the edge shape,
the lower frame reinforcement portion includes a lower frame bulged portion being bulged along the upper edge shape, and
a width in a seat front-to-rear direction of the upper frame bulged portion is larger than a width of the lower frame bulged portion in the connection portion.
2. The vehicle seat according to claim 1 , wherein:
the lower seat-base side frame includes a lower inner surface material provided at a side where an occupant seats himself/herself, and a lower outer surface material bonded to the lower inner surface material in a state facing each other, and
the lower frame reinforcement portion is formed at a position where the lower outer surface material and the lower inner surface material face each other.
3. The vehicle seat according to claim 1 ,
wherein the upper frame reinforcement portion and the lower frame reinforcement portion are formed in a continuous shape.
4. The vehicle seat according to claim 1 ,
wherein the lower frame reinforcement portion further includes a curved convex portion disposed to be separated from the upper edge by a predetermined distance.
5. The vehicle seat according to claim 4 ,
wherein the convex portion is curved in a shape generally parallel to a curved shape of the upper edge shape.
6. The vehicle seat according to claim 1 , wherein the upper frame reinforcement portion and the lower fame reinforcement portion are formed in a continuous shape and overlap with each other in a seat right-to-left direction in the connection portion.