Head protection device and guiding bracket

摘要

A head protection device includes an air bag and a guiding bracket, and the guiding bracket includes an attachment surface that has an attachment portion attached to a body panel, a guiding wall that has a support portion for supporting the air bag, and a contact portion that is coupled to an end of the guiding wall in the vehicle cabin side and contacts a ceiling material. A weak portion deformed toward the vehicle cabin outer side by a load of a passenger's head at a collision causing no activation of an inflator is formed between the support portion of the guiding wall and the contact portion.

主权项

1. A head protection device comprising:
an air bag covered with a ceiling material arranged above a pillar of a vehicle, the air bag pressing against the ceiling material to open the ceiling material, and when an inflator is activated to flow a gas into the air bag, the air bag expands and inflates downward against the ceiling material toward a vehicle cabin side from between the pillar and the ceiling material; and a guiding bracket covered with the ceiling material above the pillar, the guiding bracket guiding the air bag expanded and inflated by the inflator to the vehicle cabin side, wherein the guiding bracket includes:
an attachment surface extending along a body panel in a vehicle vertical direction, and the attachment surface having an attachment portion attached to the body panel;a guiding wall extending from a lower end of the attachment surface toward the vehicle cabin side, the guiding wall having a support portion for supporting the air bag; anda contact portion provided at an end of the guiding wall and contacting the ceiling material, anda weak portion, deformable toward a vehicle cabin outer side by a load of a passenger's head at a collision thereby causing no activation of the inflator, is provided between the support portion of the guiding wall and the contact portion, and is defined as a through hole in the guiding wall provided along a longitudinal direction of the vehicle, whereina side wall of the guiding wall defining a lower portion of the through hole on the vehicle cabin side has an inclined surface inclined toward a back surface of the guiding wall.