Energy absorption system for subterranean tool high impact loads

    公开(公告)号:US10087688B2

    公开(公告)日:2018-10-02

    申请号:US14620783

    申请日:2015-02-12

    IPC分类号: E21B17/07 F16F7/12 F16F9/58

    摘要: A shock absorbing device for a subterranean tool features a plurality of sequentially shearing shear pins that shear after incremental relative motion of the affected components. The travel stop is located internally to a series of spaced collets supported off a ring. Impact of an impact ring segments on the travel stop segments located internally to each collet provides a shock absorbing capability as the collets are placed in tension and deflect by radial flexing in opposed directions. The relatively moving parts are rotationally locked with the last of the shear pins to shear. A backup pair of contacting shoulders are provided if the primary engaging shoulders fail to support the lower end of the tool after impact. A snap ring maintains the parts in the shifted position after impact.

    SUPPORT FOOT FOR ELECTRONIC DEVICE AND ELECTRONIC DEVICE

    公开(公告)号:US20180259025A1

    公开(公告)日:2018-09-13

    申请号:US15912617

    申请日:2018-03-06

    发明人: Akira HIBINO

    IPC分类号: F16F7/12 H04R1/02 F16F7/00

    摘要: An object of the present invention is to provide a support foot for an electronic device having superior anti-vibration properties. A support foot for an electronic device according to an aspect of the present invention comprises: an attachment portion to be fixed to an electronic device main body; an outer peripheral wall portion cylindrically shaped and provided on an outer periphery of the attachment portion; and a rib structure provided between the attachment portion and the outer peripheral wall portion, wherein the rib structure comprises an oblique rib that is, in a planar view, oblique with respect to a radial direction in relation to a central axis of the outer peripheral wall portion.

    Local energy absorber
    84.
    发明授权

    公开(公告)号:US10023239B2

    公开(公告)日:2018-07-17

    申请号:US15173149

    申请日:2016-06-03

    摘要: A vehicle hood covering an underhood object includes an inner surface of the vehicle hood facing the underhood object and spaced from the underhood object, and an outer surface of the vehicle hood opposite the inner surface. A local energy absorber is operatively attached to the inner surface of the vehicle hood. The local energy absorber is a multiply-connected structure. The local energy absorber includes a wall defining an interior surface having symmetry about a central plane normal to the inner surface of the vehicle hood. A plurality of apertures is defined in the wall symmetrically about the central plane to initiate buckling and fracture in the wall during an impact applied to the outer surface defining an impact event having a duration of less than 20 milliseconds.

    Shock absorber for aircrafts
    87.
    发明申请

    公开(公告)号:US20180128338A1

    公开(公告)日:2018-05-10

    申请号:US15844637

    申请日:2017-12-18

    发明人: Yu Tian Wenyan Jiang

    IPC分类号: F16F7/12 F16F15/08

    摘要: A shock absorber includes an upper vibration damping sheet and a lower vibration damping sheet. Multiple first vibration dampers and a second vibration damper are located between the upper vibration damping sheet and the lower vibration damping sheet; the first vibration dampers are close to an edge of both the upper vibration damping sheet and the lower vibration damping sheet. One end of the second vibration damper is located on the lower vibration damping sheet and is far away from the edge of the lower vibration damping sheet, the other end of the second vibration damper extends towards the upper vibration damping sheet along an axial direction of the lower vibration damping sheet, whereby when a carrier moves, the shock absorber provides a damping effect for a gimbal through the first vibration dampers and the second vibration damper. An aircraft includes the shock absorber mentioned above and a gimbal.

    Hybrid bumper beams and methods for making and using the same

    公开(公告)号:US09902351B2

    公开(公告)日:2018-02-27

    申请号:US15300441

    申请日:2015-03-31

    IPC分类号: B60R19/18 F16F7/12

    摘要: A method of making a hybrid energy absorbing beam, comprises: forming a polymer member comprising a first portion, wherein the first portion includes a first ledge and a connecting ledge connected by a first portion wall; and a rib extending from the first portion wall, wherein a cross-section of the rib taken along a line, A-A, comprises a first channel formed from an opening between a channel wall and a first traverse wall of a lobe, wherein the lobe comprises the first traverse wall and a second traverse wall with a connecting wall disposed between the first traverse wall and the second traverse wall; wherein the first channel extends along a portion of a length, Lp, of the polymer member; and forming a metal/composite member; and attaching the polymer member to the metal/composite member on an opposite side of the polymer member as the connecting wall.