Seat belt anchor device

A seat belt anchor device to be fixed to a stud provided to a vehicle body and including a shank and an enlarged head, the seat belt anchor device comprising:

• an anchor plate including an opening and a loop attached portion that fixes a loop formed at one end of a seat belt and is formed between one end of the anchor plate and the opening, the opening including an enlarged region and a lock region extending from the enlarged region in a direction opposite to the loop attached portion, the enlarged head being allowed to be inserted into the enlarged region and not being allowed to enter the lock region from the enlarged region, and the shank being allowed to enter the lock region from the enlarged region;
• and
• a stopper attached to a first surface of the anchor plate, the first surface being located on a side opposite to the vehicle body, and the stopper being configured to engage with the enlarged head when the shank enters the lock region from the enlarged region;
• and
• a protector attached to the first surface of the anchor plate on the side opposite to the vehicle body, wherein
• the stopper includes:
• a first plate portion that contacts the first surface of the anchor plate,
• a second plate portion disposed over the opening with a gap interposed between the first surface and the second plate portion, and
• a connection portion that couples the first plate portion and the second plate portion,
• the second plate portion is enabled to be displaced in a direction away from the first surface by the stopper elastically deforming, and
• a height (H) from the anchor plate to a top surface of the protector is set to be larger than a height (h) from the anchor plate to an uppermost point of the second plate portion before and after the seat belt anchor device is fixed to the stud, and while the seat belt anchor device is in a process of being fixed to the stud, the second plate portion is pressed by the enlarged head and displaced in the direction away from the first surface, and at least a part of the second plate portion exceeds the top surface of the protector.

A seat belt anchor device to be fixed to a stud provided to a vehicle body and including a shank and an enlarged head, the seat belt anchor device comprising:

• an anchor plate including an opening and a loop attached portion that fixes a loop formed at one end of a seat belt and is formed between one end of the anchor plate and the opening, the opening including an enlarged region and a lock region extending from the enlarged region in a direction opposite to the loop attached portion, the enlarged head being allowed to be inserted into the enlarged region and not being allowed to enter the lock region from the enlarged region, and the shank being allowed to enter the lock region from the enlarged region;
• a stopper attached to a first surface of the anchor plate, the first surface being located on a side opposite to the vehicle body, and the stopper being configured to engage with the enlarged head when the shank enters the lock region from the enlarged region;
• and
• a protector attached to the first surface of the anchor plate and including a bridge portion disposed over the opening on the side opposite to the vehicle body, wherein
• the stopper includes:
• a first plate portion that contacts the first surface of the anchor plate,
• a second plate portion disposed over the opening with a gap interposed between the first surface and the second plate portion, and
• a connection portion that couples the first plate portion and the second plate portion,
• the second plate portion is enabled to be displaced in a direction away from the first surface by the stopper elastically deforming, and
• the bridge portion is provided with a recess for inserting a tool between the second plate portion of the stopper and the bridge portion.

A seat belt anchor device to be fixed to a stud provided to a vehicle body and including a shank and an enlarged head, the seat belt anchor device comprising:

• an anchor plate including an opening and a loop attached portion that fixes a loop formed at one end of a seat belt and is formed between one end of the anchor plate and the opening, the opening including an enlarged region and a lock region extending from the enlarged region in a direction opposite to the loop attached portion, the enlarged head being allowed to be inserted into the enlarged region and not being allowed to enter the lock region from the enlarged region, and the shank being allowed to enter the lock region from the enlarged region;
• and
• a stopper attached to a first surface of the anchor plate, the first surface being located on a side opposite to the vehicle body, and the stopper being configured to engage with the enlarged head when the shank enters the lock region from the enlarged region, wherein
• the stopper includes a guide piece that guides the enlarged head to the first surface of the anchor plate when the enlarged head is moved in a direction toward the lock region in a state where the enlarged head is located within a thickness of the anchor plate in the enlarged region, and
• at least a part of the guide piece is arranged within the thickness of the anchor plate when the guide piece is located in the enlarged region, and the guide piece is gradually tilted from the first surface of the anchor plate toward a second surface of the anchor plate as the guide piece extends away from the lock region, the second surface being located on a side of the vehicle body.