公开(公告)号：US07503276B1

公开(公告)日：2009-03-17

申请号：US11982029

申请日：2007-10-31

申请人： Suzanna Curi ,  Joseph A. Curi, II

发明人： Suzanna Curi ,  Joseph A. Curi, II

IPC分类号： B63B17/00

CPC分类号： B63B27/146

摘要： A retractable U-shaped ladder assembly preferably for a craft such as a watercraft has a rotatably retractable ladder which is attached to the craft by brackets. A torsion spring is used to bias the ladder into its retracted position. While the ladder is in an in-use position, the ladder is locked into place against rotation by a locking mechanism. The locking mechanism includes a bent plate which presses against four rings that are fixed to a rod, which rod extends from each bracket. Each ring has a notch that is located in the same position. In the use position, the bent plate will fit into the notches of the rings and lock the step. When the user is finished using the ladder, the user can manually unlock the step by pressing the bent plate. The bent plate moves out of engagement with the notches in the rings, thereby allowing the torsion springs in the brackets to rotate the step to the retracted position. In another embodiment, the bent plate is formed as a U-shaped cover plate, and springs for retracting the ladder are positioned to the inside of the brackets. In a further embodiment, the cover plate is made of plastic and molded with two sleeves for pivotably mounting on pins. In addition, the rod is made of plastic and unitarily molded with the rings.

摘要翻译： 优选地，用于诸如船只的工艺的可伸缩的U形梯子组件具有可旋转地伸缩的梯子，其通过支架附接到工艺。 扭簧用于将梯子偏压到其缩回位置。 当梯子处于使用中的位置时，梯子被锁定在适当的位置，以防止锁定机构旋转。 锁定机构包括弯曲板，其压靠固定到杆的四个环，该杆从每个支架延伸。 每个环具有位于相同位置的凹口。 在使用位置，弯曲的板将嵌入环的槽口并锁定台阶。 用户使用梯子完成后，用户可以通过按压弯曲板手动解锁步骤。 弯曲的板移动离开与环中的凹口的接合，从而允许托架中的扭转弹簧将台阶旋转到缩回位置。 在另一个实施例中，弯曲板形成为U形盖板，用于缩回梯子的弹簧定位在支架内侧。 在另一实施例中，盖板由塑料制成，并用两个套筒模制成可枢转地安装在销上。 此外，杆由塑料制成并且与环一体模制。

公开(公告)号：US07314019B1

公开(公告)日：2008-01-01

申请号：US11407767

申请日：2006-04-19

申请人： Suzanna Curi ,  Joseph A. Curi, II

发明人： Suzanna Curi ,  Joseph A. Curi, II

IPC分类号： B63B17/00

CPC分类号： B63B27/146 ,  B63B2027/141

摘要： A retractable U-shaped ladder assembly preferably for a craft such as a watercraft has a rotatably retracted ladder which is attached to the craft by brackets. A torsion spring is used to bias the ladder into the retracted position. While the ladder is in an in-use position, the ladder is locked into place by a locking mechanism. The locking mechanism includes a bent plate which presses against four rings that are fixed to a rod, which rod extends from each bracket. Each ring has a notch that is located in the same position. In the use position, the bent plate will fit into the notches of the rings and lock the step. When the user is finished using the ladder, the user can manually unlock the step by pressing the bent plate. The bent plate moves out of engagement with the notches in the rings, thereby allowing the torsion springs in the brackets to rotate the step to the retracted position.

摘要翻译： 优选地用于诸如船只的工艺的可伸缩的U形梯子组件具有可旋转地缩回的梯子，其通过支架附接到工艺。 扭簧用于将梯子偏压到缩回位置。 当梯子处于使用中时，梯子被锁定机构锁定就位。 锁定机构包括弯曲板，其压靠固定到杆的四个环，该杆从每个支架延伸。 每个环具有位于相同位置的凹口。 在使用位置，弯曲的板将嵌入环的槽口并锁定台阶。 用户使用梯子完成后，用户可以通过按压弯曲板手动解锁步骤。 弯曲的板移动离开与环中的凹口的接合，从而允许托架中的扭转弹簧将台阶旋转到缩回位置。