公开(公告)号：US5490640A

公开(公告)日：1996-02-13

申请号：US288946

申请日：1994-08-10

申请人： William R. Miller ,  Timothy J. Becker ,  John E. Olson

发明人： William R. Miller ,  Timothy J. Becker ,  John E. Olson

IPC分类号： B65H75/24

CPC分类号： B65H75/246 ,  Y10T279/1079 ,  Y10T279/1095

摘要： An expansible shaft assembly has core-engagement shoes pivotally mounted to a shaft for pivoting outwardly into tight engagement with the interior of a roll core automatically in response to the application of torque to the shaft. The core-engagement shoes have core-engaging surfaces, some being pivotable outwardly in response to torque applied to the shaft in one axial direction and others being pivotable outwardly in response to torque applied in the opposite axial direction. The respective oppositely-actuated core-engaging surfaces can both be on the same engagement shoe or, alternatively, on different shoes spaced axially along the shaft. For maximizing the speed with which the core-engagement shoes engage the core in response to torque application, the core-engaging surfaces are preferably angularly offset significantly from a radial direction extending between the axis of rotation of the shaft and the pivot axis of the engagement shoe.

摘要翻译： 可膨胀的轴组件具有枢转地安装到轴的芯接合滑块，用于响应于向轴施加扭矩而自动向外枢转以与卷芯的内部紧密接合。 芯接合鞋具有芯接合表面，一些可响应于在一个轴向施加到轴上的扭矩而向外枢转，另一些可响应于沿相反轴向施加的扭矩向外枢转。 相应的相互致动的芯接合表面可以都在相同的接合靴上，或者可选地，在沿着轴轴向间隔开的不同的鞋上。 为了最大限度地提高芯接合靴响应于扭矩施加而与芯接合的速度，芯接合表面优选地从在轴的旋转轴线和接合的枢转轴线之间延伸的径向方向上显着地偏离角度地偏移 鞋。

公开(公告)号：US5372331A

公开(公告)日：1994-12-13

申请号：US78762

申请日：1993-06-15

申请人： William R. Miller ,  Timothy J. Becker

发明人： William R. Miller ,  Timothy J. Becker

IPC分类号： B65H18/04 ,  B65H75/24

CPC分类号： B65H75/243

摘要： An elongate expansible shaft for a roll core has a peripheral surface defining multiple separate elongate slots helically intertwined and oriented at a pitch angle no greater than about 30.degree. measured from a longitudinal axis. Each slot is T-shaped in cross section and contains a respective separate, elongate, resilient T-shaped bladder pneumatically expandable into frictional engagement with the core. The bladder has a unitary construction with hinge portions for minimizing the loss of force due to expansion of the bladder. An air inlet fitting is inserted in one end of each bladder and is independently connected to a respective separate valve for preventing the escape of air from the bladder irrespective of the air pressure in any other bladder.

摘要翻译： 用于卷芯的细长的可扩展轴具有限定多个分离的细长狭槽的外周表面，所述细长槽螺旋缠结并且以从纵向轴线测量的俯仰角不大于约30°定向。 每个槽的横截面为T形，并且包含相应的单独的，细长的，弹性的T形气囊，其气动地可扩展成与芯部摩擦接合。 膀胱具有一体结构，具有铰链部分，用于使由于膀胱膨胀引起的力的损失最小化。 空气入口配件插入每个气囊的一端，并且独立地连接到相应的单独的阀，以防止空气从气囊逸出，而与任何其它气囊中的空气压力无关。

公开(公告)号：US5445342A

公开(公告)日：1995-08-29

申请号：US318072

申请日：1994-10-05

申请人： William R. Miller ,  Timothy J. Becker

发明人： William R. Miller ,  Timothy J. Becker

IPC分类号： B65H18/04 ,  B65H75/24

CPC分类号： B65H75/243

摘要： An elongate expansible shaft for a roll core has a peripheral surface defining multiple separate elongate slots helically intertwined and oriented at a pitch angle no greater than about 30.degree. measured from a longitudinal axis. Each slot is T-shaped in cross section and contains a respective separate, elongate, resilient bladder pneumatically expandable into frictional engagement with the core. The bladder has a unitary construction with hinge portions for minimizing the loss of force due to expansion of the bladder. An air inlet fitting is inserted in one end of each bladder and is independently connected to a respective separate valve for preventing the escape of air from the bladder irrespective of the air pressure in any other bladder.

摘要翻译： 用于卷芯的细长的可扩展轴具有限定多个分离的细长狭槽的外周表面，所述细长槽螺旋缠结并且以从纵向轴线测量的俯仰角不大于约30°定向。 每个槽的横截面为T形，并且包含气动地可扩展成与芯部摩擦接合的相应的单独的，细长的弹性气囊。 膀胱具有一体结构，具有铰链部分，用于使由于膀胱膨胀引起的力的损失最小化。 空气入口配件插入每个气囊的一端，并且独立地连接到相应的单独的阀，以防止空气从气囊逸出，而与任何其它气囊中的空气压力无关。