Seat belt device

Patent metadata

Field	Value
Publication number	US-2021197761-A1
Application number	US-202017083694-A
Country	US
Kind code	A1
Filing date	Oct 29, 2020
Priority date	Dec 27, 2019
Publication date	Jul 1, 2021
Grant date	—

Abstract

A seat belt device includes a webbing, a locking tongue, and a guide. The webbing includes a lap belt and a shoulder belt. The locking tongue is configured to undergo a change from a free state, in which the webbing is capable of passing between a side of the lap belt and a side of the shoulder belt, to a lock state, in which the webbing is not capable of passing between the side of the lap belt and the side of the shoulder belt, in accordance with a collision or a warning of the collision of a vehicle. The guide is configured to displace a location on the shoulder belt that is adjacent to the locking tongue in a direction away from the occupant in response to the change from the free state to the lock state.

First claim

1 . A seat belt device comprising:
a webbing comprising a lap belt and a shoulder belt, at least a portion of the lap belt being configured to be disposed to extend in a vehicle-width direction along a front of an abdomen of an occupant, at least a portion of the shoulder belt being configured to be disposed obliquely along a front of a chest of the occupant; a locking tongue comprising a slit that is provided to insert an intermediate portion of the webbing therein, the locking tongue being provided between the lap belt and the shoulder belt, the locking tongue being configured to be coupled to a vehicle body when the occupant fastens the seat belt device, the locking tongue being configured to undergo a change from a free state to a lock state in accordance with a collision or a warning of the collision of a vehicle, the free state being a state in which the webbing is capable of passing between a side of the lap belt and a side of the shoulder belt, the lock state being a state in which'the webbing is not capable of passing between the side of the lap belt and the side of the shoulder belt; and a guide configured to displace a location on the shoulder belt that is adjacent to the locking tongue in a direction away from the occupant in the vehicle-width direction in response to the change from the free state to the lock state of the locking tongue.

2 . The seat belt device according to claim 1 , wherein
the locking tongue comprises a main body and a movable member, the main body being provided to insert the webbing therein, the movable member being mounted at the main body to be displaceable relative to the main body and restraining the webbing in the lock state, and the guide is coupled to the movable member or is integrally molded with the movable member.

3 . The seat belt device according to claim 1 , wherein the locking tongue undergoes the change from the free state to the lock state in accordance with an increase in a tension of the webbing.

4 . The seat belt device according to claim 2 , wherein the locking tongue undergoes the change from the free state to the lock state in accordance with an increase in a tension of the webbing.

5 . The seat belt device according to claim 1 , wherein the locking tongue is caused to undergo the change from the free state to the lock state by an actuator, and
wherein the seat belt device comprises a controller that causes the actuator to be operated in accordance with the collision or the warning of the collision of the vehicle.

6 . The seat belt device according to claim 2 , wherein the locking tongue is caused to undergo the change from the free state to the lock state by an actuator, and
wherein the seat belt device comprises a controller that causes the actuator to be operated in accordance with the collision or the warning of the collision of the vehicle.

Assignees

• Subaru Corp

Inventors

• Nagasawa Isamu

Classifications

• B60R22/42 Primary

  having means for acting directly upon the belt, e.g. by clamping or friction {(not combined with the retractor B60R22/185)} · CPC title

• B60R2022/1818

  Belt guides · CPC title

• B60R22/023

  Three-point seat belt systems comprising two side lower and one side upper anchoring devices (B60R22/022, B60R22/03 take precedence) · CPC title

• B60R2022/1812

  Connections between seat belt and buckle tongue · CPC title

• B60R2022/1806

  for buckles · CPC title