Toyota Boshoku Kabushiki Kaisha

Kimiyasu Kurokawa

Yoshiyuki Kumazaki

Yoshihiro Motoi

Keigo Matsumoto

Shinji Kamiya

A seat frame includes a cushion frame, a back frame, a recliner plate, a bracket arranged to be in contact with a side surface of each cushion side frame, a nut, an end nut, a bolt, and an end bolt. The bracket includes a nut fixing portion and a pipe fixing portion. The bolt is fixed to the nut in a state of being inserted through a bolt hole and a bolt insertion hole. The end bolt is fixed to the end nut in a state of being inserted through an end bolt hole.

Seat frame

A seat frame includes: a first side frame and a second side frame; a structural member connected to at least one of the first side frame and the second side frame; and a coupling member welded to the at least one of the side frames. The coupling member has a cylindrical portion, a closing portion, and a protruding portion having a smaller outer shape than the cylindrical portion, and protruding outward in an axial direction of the cylindrical portion from the closing portion. The at least one of the side frames is provided with a protruding portion insertion hole that allows insertion of the protruding portion and has a shape smaller than the outer shape of the cylindrical portion. The protruding portion is welded to the at least one of the side frames while being positioned in the protruding portion insertion hole.

A seat back frame including an upper frame forming an upper framework of a seat back and extending in a seat width direction, and a side frame forming a side framework of the seat back and extending in a seat height direction, wherein an upper end of the side frame extends in the seat height direction up to a portion of the upper frame extending in the seat width direction, and wherein the side frame includes a general surface portion which is in contact with the upper fame from below with its surface facing the seat width direction, and a flange portion which protrudes from the general surface portion with its surface facing a seat front and rear direction, is in contact with the upper frame from at least one of the front and rear sides, and is welded to the upper frame.

Growing community of inventors

Gifu-ken, Japan

Kimiyasu Kurokawa