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    • 3. 发明公开
    • Bolt
    • Bolzen
    • EP2420684A1
    • 2012-02-22
    • EP10173597.5
    • 2010-08-20
    • Alstom Technology Ltd
    • De Graaff, Tjerk MichielKinces, FrantisekMayor, Kevin
    • F16B33/00F16B39/06
    • F16B33/006F16B39/06
    • The bolt (1) comprises a screw (2) with at least a threaded surface (4) having at least a cut out (5), and a nut (3) with a core and a threaded hole (7) for engaging the at least a threaded surface (4) of the screw (2). A blocking element (9) is insertable between the screw (2) and nut (3), to block them together. The nut (3) comprises a longitudinal slot (8) carved into its core and opening into its threaded hole (7). The longitudinal slot (8) is arranged to receive the blocking element (9). The blocking element (9) has a thickness (T) greater than the slot depth (t).
    • 螺栓(1)包括具有至少具有切口(5)的至少螺纹表面(4)的螺钉(2)和具有芯的螺母(3)和用于接合的螺纹孔(7) 至少螺钉(2)的螺纹表面(4)。 阻挡元件(9)可以插入在螺钉(2)和螺母(3)之间,以将它们阻挡在一起。 螺母(3)包括纵向狭槽(8),该纵向槽(8)刻在其芯部中并且开口到其螺纹孔(7)中。 纵向狭槽(8)布置成接收阻挡元件(9)。 阻挡元件(9)的厚度(T)大于槽深度(t)。
    • 10. 发明公开
    • AN ANTI-LOOSENING DEVICE FOR A FASTENING UNIT OF A MOTOR-VEHICLE WHEEL
    • EP3909784A1
    • 2021-11-17
    • EP20174331.7
    • 2020-05-13
    • FCA Italy S.p.A.
    • LUCÀ, StefanoBADINO, Renato
    • B60B3/14F16B39/06F16B39/282F16B39/02F16B39/10
    • An anti-loosening device (1) for a fastening unit (2) of a motor-vehicle wheel (W) is described here, wherein the motor-vehicle wheel (W) is configured to be coupled with a wheel hub (H) by means of the fastening unit (2). The anti-loosening device (1) is configured to be arranged within the wheel hub (H) along an axial direction, so that a main axis of the anti-loosening device (1) coincides with the wheel axis (W).
      The anti-loosening device (1) comprises:
      - a gear (3) arranged to cooperate with inner teeth (H3) of the wheel hub (H),
      - an elastic element (5) extending axially with respect to the gear (3), and
      - a coupling element (8) obtained on a sector of said gear (3), arranged to receive a corresponding fastening member (10),
      During assembly of the wheel (W) - hub (H) assembly, the anti-loosening device (1) is arranged to create a compressed configuration, wherein the gear (3) is decoupled with respect to the inner teeth (H3), and is arranged within a cavity portion (16) obtained on the inner surface (H2) of the wheel hub (H), so as to allow rotation of the anti-loosening device (1) around the main axis;
      Following a rotation of the anti-loosening device (1), the coupling element (8) is arranged to be radially aligned with respect to an anti-rotation sector (9) obtained on the fastening unit (2), in such a way that in the final assembled condition, the fastening member (10) coupled to the coupling element (8) cooperates with the anti-rotation sector (9), to avoid loosening of the locking unit (2).