公开(公告)号：US20160318473A1

公开(公告)日：2016-11-03

申请号：US14702202

申请日：2015-05-01

Applicant: TK HOLDINGS INC.

Inventor： Garrett James LECKLITER ,  Robert Frank ROGERS

IPC: B60R22/195 ,  B60R22/18

CPC classification number: B60R22/195 ,  B60R22/18 ,  B60R22/1952 ,  B60R2022/1806

Abstract: A seat belt pretensioner including a casing defining a pivot axis and having a locking member, a driving mechanism supported by the casing, a flexible connecting member, and a cam. The driving mechanism includes a movable member that moves relative to the casing during pretensioning. The flexible connecting member has a first end coupled to the movable member and a second end that is attachable to one of the anchor, the buckle and the webbing. The cam includes a locking surface having a cross-sectional shape that is an Archimedean spiral. The cam is rotatable about the pivot axis between a non-locking position, in which the connecting member is able to freely move between the cam and the locking member, and a locking position, in which the locking surface clamps the connecting member to the locking member to prevent any further movement of the connecting member relative to the locking member.

Abstract translation: 一种安全带预张紧器，包括限定枢转轴线并具有锁定构件的壳体，由壳体支撑的驱动机构，柔性连接构件和凸轮。 驱动机构包括在预张紧期间相对于壳体移动的可动构件。 柔性连接构件具有联接到可移动构件的第一端和可附接到锚固件，带扣和织带中的一个的第二端。 凸轮包括具有作为阿基米德螺旋的横截面形状的锁定表面。 所述凸轮可绕枢转轴线旋转，所述非锁定位置在所述连接构件能够在所述凸轮和所述锁定构件之间自由移动的非锁定位置和锁定位置之间，所述锁定表面将所述连接构件夹紧到所述锁定位置 构件以防止连接构件相对于锁定构件进一步移动。