Rapid panel access fastener for highly curved panels
    5.
    发明授权
    Rapid panel access fastener for highly curved panels 有权
    用于高度弯曲面板的快速面板接入紧固件

    公开(公告)号:US09458648B1

    公开(公告)日:2016-10-04

    申请号:US14713225

    申请日:2015-05-15

    Abstract: A fastener for highly curved access panels on aircraft or other structures is disclosed. The fastener features a bottom-grasping design which allows for an unblemished outer panel surface, simple and rapid pneumatic fastener actuation for both latching and unlatching, high reliability, built-in clamping pre-load of the access panel onto the structure, and full retractability of the fastener inside the supporting structure. The fastener includes a Belleville spring with a piston centrally disposed therein, where the piston and spring deflect outward upon application of pneumatic pressure. A pneumatic valve opens upon application of a higher pressure, allowing locking dogs in the piston to deploy radially into a cavity in the access panel. When pressure is removed, the Belleville spring relaxes, the locking dogs grasp a lip of the cavity, and the access panel is latched onto the structure with a clamping pre-load. A pneumatic sequence for unlatching is also provided.

    Abstract translation: 公开了一种用于飞机或其他结构上的高度弯曲的检修面板的紧固件。 紧固件具有底部抓握设计,其允许无瑕疵的外部面板表面,简单和快速的气动紧固件致动,用于闩锁和解锁,高可靠性,内置的接合面板在结构上的预加载以及完全缩回 紧固件在支撑结构内。 紧固件包括带有中心地设置在其中的活塞的贝氏弹簧,其中活塞和弹簧在施加气动压力时向外偏转。 在施加更高的压力时,气动阀打开,允许将活塞中的锁定件径向地部署到进入面板中的空腔中。 当压力消除时,Belleville弹簧放松,锁定杆抓住空腔的唇缘,并且检修面板以夹紧预加载的方式锁定在结构上。 还提供了用于解锁的气动顺序。

    Temporally staged rapid panel access fastener for highly curved panels
    8.
    发明授权
    Temporally staged rapid panel access fastener for highly curved panels 有权
    时间分段快速面板接入紧固件,用于高度弯曲的面板

    公开(公告)号:US09567774B1

    公开(公告)日:2017-02-14

    申请号:US15214158

    申请日:2016-07-19

    Inventor: Matthew A. Neal

    Abstract: A fastener for highly curved access panels on aircraft or other structures, featuring a bottom-grasping design allowing for an unblemished outer panel surface, simple and rapid pneumatic fastener actuation, built-in clamping pre-load, and full retractability of the fastener inside the supporting structure. The fastener includes a Belleville spring with a piston centrally disposed therein, where the piston and spring deflect outward upon application of pneumatic pressure. A pressure chamber within the piston has inlet and outlet orifices designed so that the pressure in the piston chamber gradually increases, requiring several seconds to reach a pressure which causes locking dogs in the piston to deploy radially into a cavity in the access panel. When pressure is removed, the Belleville spring relaxes, the locking dogs grasp a lip of the cavity, and the access panel is latched onto the structure with a clamping pre-load. A pneumatic sequence for unlatching is also provided.

    Abstract translation: 用于飞机或其他结构上高度弯曲的进入面板的紧固件,具有底部抓握设计,允许无瑕疵的外板表面,简单和快速的气动紧固件致动,内置的夹紧预加载以及紧固件内部的完全缩回 支撑结构。 紧固件包括带有中心地设置在其中的活塞的贝氏弹簧,其中活塞和弹簧在施加气动压力时向外偏转。 活塞内的压力室具有入口孔和出口孔,其设计成使得活塞室中的压力逐渐增加,需要几秒钟以达到使活塞中的锁定器径向地部署到进入面板中的空腔中的压力。 当压力消除时,Belleville弹簧放松,锁定杆抓住空腔的唇缘,并且检修面板以夹紧预加载的方式锁定在结构上。 还提供了用于解锁的气动顺序。

    THERMALLY ACTIVATED, SHAPE CONFIGURABLE MECHANICAL LOCKING Z-PIN
    9.
    发明申请
    THERMALLY ACTIVATED, SHAPE CONFIGURABLE MECHANICAL LOCKING Z-PIN 有权
    热启动,形状配置机械锁定Z-PIN

    公开(公告)号:US20160265573A1

    公开(公告)日:2016-09-15

    申请号:US14656166

    申请日:2015-03-12

    Abstract: A Z-pin including a first bi-metal structure having a first metal strip and a second metal strip bonded together, where the first and second metal strips have different coefficients of thermal expansion, and a second bi-metal structure having a third metal strip and fourth metal strip bonded together, where the third metal strip and the fourth metal strip have different coefficients of thermal expansion. The first and third metal strips are selectively secured together at at least one discrete location so that heating of the Z-pin causes the first and second bi-metal structures to deform relative to each other. The Z-pin is inserted into a composite laminate structure while it is in its uncured state, where curing of the composite structure causes the first and second bi-metal structures to deform relative to each other to lock the laminate layers together.

    Abstract translation: 一种Z形引脚,其包括具有第一金属条和第二金属条的第一双金属结构,所述第一金属条和第二金属条粘合在一起,其中所述第一和第二金属条具有不同的热膨胀系数,以及具有第三金属条的第二双金属结构 和第四金属带结合在一起,其中第三金属带和第四金属带具有不同的热膨胀系数。 第一和第三金属条在至少一个离散位置选择性地固定在一起,使得Z形销的加热使得第一和第二双金属结构相对于彼此变形。 Z形针在处于未固化状态时被插入到复合层压结构中,其中复合结构的固化导致第一和第二双金属结构相对于彼此变形以将层压层锁定在一起。

    Amorphous metal permanent fastener utilizing a thermoplastically swaged retainer

    公开(公告)号:US09839955B2

    公开(公告)日:2017-12-12

    申请号:US14713335

    申请日:2015-05-15

    CPC classification number: B21J15/08 B21J15/022 F16B19/05

    Abstract: A permanent faster is disclosed that utilizes an amorphous metal alloy for a retaining collar that is thermoplastically formed on install. The fastener includes a headed pin with locking grooves disposed thereon and a collar having a cylindrical inner wall. Head geometry may be any suitable shape; countersunk, counter bore, flat, etc., and may also be non-rotationally symmetric. The pin is disposed into aligned holes through the work pieces to be secured, and the collar is disposed about the pin over the locking grooves. The collar is heated into a thermoplastic region, something only allowed because of the amorphous metal material properties. The cylindrical wall of the collar is then radically compressed into the locking grooves to affix the collar on the pin. The amorphous metal properties allow use of a smaller fastener, and the thermoplastic region is reached at a temperature which does not damage composite work pieces.

Patent Agency Ranking