公开(公告)号：US10006478B2

公开(公告)日：2018-06-26

申请号：US15001979

申请日：2016-01-20

Applicant: Alcoa Inc.

Inventor： Gerhart Hufnagl ,  Douglas DeSalvo ,  Randy Torrence

IPC: F16B13/06 ,  F16B19/10 ,  F16B5/04 ,  F16B5/02

CPC classification number: F16B13/061 ,  F16B5/0258 ,  F16B5/04 ,  F16B19/1054 ,  F16B19/1072

Abstract: A fastener includes a sleeve, a core bolt, and an insert. The sleeve includes a first portion having a first inner diameter, a second portion having a second inner diameter, and a step intermediate the first and second portions. The core bolt includes a cylindrical portion having a first diameter, a threaded portion having a major diameter, and a thread run-out intermediate the cylindrical and threaded portions. The insert is disposed within the sleeve and is sized and shaped to be retained between the step of the sleeve and the thread run-out of the core bolt when the fastener is in a pre-installation position. The fastener compresses the insert between the step of the sleeve and the thread run-out of the core bolt by an installation motion of the core bolt. The insert deforms away from the core bolt to initiate formation of a bulb in response to the compression.

公开(公告)号：US20160215804A1

公开(公告)日：2016-07-28

申请号：US15001979

申请日：2016-01-20

Applicant: Alcoa Inc.

Inventor： Gerhart Hufnagl ,  Douglas DeSalvo ,  Randy Torrence

IPC: F16B13/06 ,  F16B5/02

CPC classification number: F16B13/061 ,  F16B5/0258 ,  F16B5/04 ,  F16B19/1054 ,  F16B19/1072

Abstract: A fastener includes a sleeve, a core bolt, and an insert. The sleeve includes a first portion having a first inner diameter, a second portion having a second inner diameter, and a step intermediate the first and second portions. The core bolt includes a cylindrical portion having a first diameter, a threaded portion having a major diameter, and a thread run-out intermediate the cylindrical and threaded portions. The insert is disposed within the sleeve and is sized and shaped to be retained between the step of the sleeve and the thread run-out of the core bolt when the fastener is in a pre-installation position. The fastener compresses the insert between the step of the sleeve and the thread run-out of the core bolt by an installation motion of the core bolt. The insert deforms away from the core bolt to initiate formation of a bulb in response to the compression.

Abstract translation: 紧固件包括套筒，芯螺栓和插入件。 套筒包括具有第一内径的第一部分，具有第二内径的第二部分和在第一和第二部分之间的台阶。 芯螺栓包括具有第一直径的圆柱形部分，具有大直径的螺纹部分和在圆柱形和螺纹部分之间的螺纹排出。 插入件设置在套筒内，并且当紧固件处于预安装位置时，其尺寸和形状被保持在套筒的台阶与芯螺栓的螺纹流出之间。 紧固件通过芯螺栓的安装运动在套筒的台阶和芯螺栓的螺纹流出之间压入插入件。 插件从芯螺栓变形，以响应于压缩而开始形成灯泡。

公开(公告)号：US20140044498A1

公开(公告)日：2014-02-13

申请号：US14055559

申请日：2013-10-16

Applicant: Alcoa Inc.

Inventor： Gerhart Hufnagl ,  Douglas DeSalvo

IPC: F16B19/10

CPC classification number: F16B19/1054 ,  F16B19/1072

Abstract: A blind fastener including a pull-type core bolt having a shank with a head, and a sleeve having an elongated body with a head, and a tapered notch formed within an exterior surface thereof and defined by a tapered portion having a slope and a frictional enhanced surface. The core bolt is installed within the sleeve. During installation of the fastener within the plurality of work pieces, an axial force is applied to the core bolt the head of the core bolt engages the sleeve, and a bulb is formed on the elongated body of the sleeve, the bulb defining a portion of a bulbed portion. When a selected axial force is reached, the bulbed portion separates from the elongated body and engages axially the tapered portion of the sleeve, increasing the diameter of the bulb which engages a blind side of one of the work pieces.

Abstract translation: 一种盲卡扣，包括具有头部的柄部的拉动型芯螺栓，以及具有带头部的细长主体的套筒，以及形成在其外表面内的锥形凹口，该锥形凹口由具有斜面和摩擦力的锥形部分限定 增强表面。 芯螺栓安装在套筒内。 在将紧固件安装在多个工件内部期间，轴向力被施加到芯螺栓上，芯螺栓的头部接合套筒，并且灯泡形成在套筒的细长主体上，灯泡限定一部分 一个凸起的部分。 当达到所选择的轴向力时，凸起部分与细长主体分离并且轴向地接合套筒的锥形部分，从而增加接合工件之一的盲侧的灯泡的直径。

公开(公告)号：US20130272815A1

公开(公告)日：2013-10-17

申请号：US13860944

申请日：2013-04-11

Applicant: ALCOA INC.

Inventor： Gerhart Hufnagl ,  Douglas DeSalvo

IPC: F16B19/10

CPC classification number: F16B19/1036 ,  F16B19/1054 ,  F16B19/1072 ,  F16B29/00

Abstract: A blind fastener including a core bolt having a shank with a head and a threaded portion, and a sleeve having an elongated body with a head, an internal threaded portion, and a tapered notch formed within an exterior surface thereof and defined by a tapered portion having a slope and a frictional enhanced surface. The core bolt is installed within the sleeve such that its threaded portion engages threadedly the internal threaded portion of the sleeve. During installation of the fastener within the plurality of workpieces, a bulb is formed on the elongated body of the sleeve, the bulb defining a portion of a bulbed portion. When a selected axial force is reached, the bulbed portion separates from the elongated body and engages axially the tapered portion of the sleeve, increasing the diameter of the bulb which engages a blind side of one of the workpieces.

Abstract translation: 一种盲卡扣，其包括具有头部和螺纹部分的柄的芯螺栓，以及具有细长主体的套筒，该主体具有头部，内螺纹部分和形成在其外表面内并由锥形部分限定的锥形凹口 具有斜面和摩擦增强表面。 芯螺栓安装在套筒内，使得其螺纹部分螺纹地接合套筒的内螺纹部分。 在将紧固件安装在多个工件内时，在套筒的细长主体上形成一个灯泡，该灯泡限定了一部分凸起部分。 当达到所选择的轴向力时，凸起部分与细长主体分离并且轴向地接合套筒的锥形部分，从而增加接合其中一个工件的盲侧的灯泡的直径。

公开(公告)号：US08979453B2

公开(公告)日：2015-03-17

申请号：US14055559

申请日：2013-10-16

Applicant: Alcoa Inc.

Inventor： Gerhart Hufnagl ,  Douglas DeSalvo

IPC: F16B13/06 ,  F16B19/10

CPC classification number: F16B19/1054 ,  F16B19/1072

Abstract: A blind fastener including a pull-type core bolt having a shank with a head, and a sleeve having an elongated body with a head, and a tapered notch formed within an exterior surface thereof and defined by a tapered portion having a slope and a frictional enhanced surface. The core bolt is installed within the sleeve. During installation of the fastener within the plurality of work pieces, an axial force is applied to the core bolt the head of the core bolt engages the sleeve, and a bulb is formed on the elongated body of the sleeve, the bulb defining a portion of a bulbed portion. When a selected axial force is reached, the bulbed portion separates from the elongated body and engages axially the tapered portion of the sleeve, increasing the diameter of the bulb which engages a blind side of one of the work pieces.

Abstract translation: 一种盲卡扣，包括具有头部的柄部的拉动型芯螺栓，以及具有带头部的细长主体的套筒，以及形成在其外表面内的锥形凹口，该锥形凹口由具有斜面和摩擦力的锥形部分限定 增强表面。 芯螺栓安装在套筒内。 在将紧固件安装在多个工件内部期间，轴向力被施加到芯螺栓上，芯螺栓的头部接合套筒，并且灯泡形成在套筒的细长主体上，灯泡限定一部分 一个凸起的部分。 当达到所选择的轴向力时，凸起部分与细长主体分离并且轴向地接合套筒的锥形部分，从而增加接合工件之一的盲侧的灯泡的直径。

公开(公告)号：US08777533B2

公开(公告)日：2014-07-15

申请号：US13860944

申请日：2013-04-11

Applicant: Alcoa Inc.

Inventor： Gerhart Hufnagl ,  Douglas DeSalvo

IPC: F16B13/06 ,  F16B19/10 ,  F16B29/00

CPC classification number: F16B19/1036 ,  F16B19/1054 ,  F16B19/1072 ,  F16B29/00

Abstract: A blind fastener including a core bolt having a shank with a head and a threaded portion, and a sleeve having an elongated body with a head, an internal threaded portion, and a tapered notch formed within an exterior surface thereof and defined by a tapered portion having a slope and a frictional enhanced surface. The core bolt is installed within the sleeve such that its threaded portion engages threadedly the internal threaded portion of the sleeve. During installation of the fastener within the plurality of workpieces, a bulb is formed on the elongated body of the sleeve, the bulb defining a portion of a bulbed portion. When a selected axial force is reached, the bulbed portion separates from the elongated body and engages axially the tapered portion of the sleeve, increasing the diameter of the bulb which engages a blind side of one of the workpieces.

Abstract translation: 一种盲卡扣，其包括具有头部和螺纹部分的柄的芯螺栓，以及具有细长主体的套筒，该主体具有头部，内螺纹部分和形成在其外表面内并由锥形部分限定的锥形凹口 具有斜面和摩擦增强表面。 芯螺栓安装在套筒内，使得其螺纹部分螺纹地接合套筒的内螺纹部分。 在将紧固件安装在多个工件内时，在套筒的细长主体上形成一个灯泡，该灯泡限定了一部分凸起部分。 当达到所选择的轴向力时，凸起部分与细长主体分离并且轴向地接合套筒的锥形部分，从而增加接合其中一个工件的盲侧的灯泡的直径。