CPC B60R 22/30 (2013.01) [A44B 11/2553 (2013.01); B60R 22/18 (2013.01); B60R 2022/1806 (2013.01); B60R 2022/1812 (2013.01)] | 5 Claims |
1. An extension unit to be applied to a seat belt apparatus for a vehicle, the extension unit comprising:
a buckle member to be engaged with a first tongue plate of the seat belt apparatus;
a first coupling member comprising a second tongue plate to be engaged with a buckle body of the seat belt apparatus;
a second coupling member disposed between the buckle member and the first coupling member, the second coupling member comprising a coupling mechanism to be coupled to the first coupling member; and
a webbing belt joining the buckle member and the first coupling member, wherein
the buckle member comprises a first holder and a fixing member, the first holder holding a part of the webbing belt extending from the first coupling member, the fixing member fixing an end of the webbing belt,
the first coupling member comprises a third tongue plate to be engaged with the coupling mechanism of the second coupling member,
the second coupling member is so disposed that a projected region extending inward in a width direction of the vehicle is defined, the projected region having a size corresponding to a thickness of an operator's hand, the projected region not being overlapped with the buckle member, and
the second coupling member comprises a second holder holding a part of the webbing belt extending from the first holder to the fixing member.
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