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    • 112. 发明申请
    • TENSIONER DRIVE FOR A SEATBELT INSTALLATION, AND ASSEMBLY HAVING A TENSIONER DRIVE
    • US20210213907A1
    • 2021-07-15
    • US17127559
    • 2020-12-18
    • Joyson Safety Systems Germany GmbH
    • Walter KRAUSS
    • B60R22/195
    • The invention relates, inter alia, to a tensioner drive (11) for a seatbelt installation, having a tube (30), at least one piston (25) which within the tube (30) is displaceable along a propulsion direction (P2), and a gas generator (40) for generating a propulsion gas (G) and a propulsion pressure on a pressure-facing side of the piston (25). According to the invention it is provided that the piston (25) on the pressure-facing side thereof has a first sealing element (90) which, upon triggering the gas generator (40), is impinged with the propulsion pressure and seals a first tubular portion (31) of the tube (30) that is filled with propulsion gas (G) in relation to a second tubular portion (32) of the tube (30) that in the propulsion direction (P2) lies behind said first tubular portion (31); a second sealing element (100) which, upon triggering the gas generator (40), is separated from the first sealing element (90) is disposed in the propulsion direction (P2) behind the first sealing element (90); wherein the second sealing element (100) is displaceable relative to the first sealing element (90), and in the event of leakage of the first sealing element (90) and when impinged with pressure by the propulsion gas (G) is displaced along the propulsion direction (P2) while enlarging the spacing (A) between the first sealing element (90) and the second sealing element (100).
    • 113. 发明申请
    • Safety Device
    • US20210146879A1
    • 2021-05-20
    • US16952236
    • 2020-11-19
    • Schroth Safety Products LLC
    • Patrick AkomaManuel Marroquin
    • B60R22/14B60R22/02B60R22/195B60R22/46
    • A pretensioning lapbelt apparatus where the pretensioning of the lapbelt is performed by the rapid inflation of an airbag that is integral to the lapbelt itself. A preferred embodiment of the pretensioning lapbelt apparatus would include a length of seatbelt webbing with a latch fixed on one end and a cinching anchor slidable on the opposite end. Integral to the lapbelt and attached to each end of the webbing is an airbag. The airbag, as is known in the art, is configured to be flat and folded in a compact uninflated state, and then quickly inflate to its inflated state upon the introduction of an inflation gas triggered by a crash event. The design of the airbag, including the attachment locations of the ends of the webbing are chosen such that, upon inflation of the airbag, the free end of the webbing—the end of the webbing that is passed through the cinching latch—is pulled taught, thereby reducing the effective length of the lapbelt (the length between the latch and the cinching anchor). The anchor is designed to be a cinching anchor such that once the airbag deploys and pulls the webbing through the anchor (thereby pretensioning the lapbelt) a sliding pin in the anchor “cinches” the webbing, effectively locking the webbing in the pretensioned state.