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1. 发明授权

US09322215B2 Ladder leveler apparatus 有权
标题翻译：梯子矫直仪
公开(公告)号：US09322215B2
公开(公告)日：2016-04-26
申请号：US14242311
申请日：2014-04-01
申请人： Jershon, Inc.
发明人： Rodney Kurzer , Brian D. Webster , Geoffrey R. White , Steven A. Owen , Tyler L. Sharp , Kenneth S. Bostwick , Gregory L. Bishop
IPC分类号： E06C7/44 , E06C7/46
CPC分类号： E06C7/44 , E06C7/46 , Y10T29/49813
摘要： A ladder includes a leveler engages a bottom of each side rail for 1) causing extendable legs to move to a level ground-engaging position, 2) causing the legs to lock when both legs engage the ground, and 3) causing the extendable legs to move to a centered/retracted position when lifted from the ground. The leveler includes pawls, links, pinions, and a shaft forming a four-bar linkage for selectively moving the pawls inward to the disengaged position when the pinion and shaft are each freely rotatable, but selectively moving the pawl outward into locking engagement when the shaft resists movement due to ground engagement by both legs. The leveler can be constructed to attach to an inside of the side rails, thus facilitating pre-assembly.
摘要翻译：梯子包括一个与每个侧轨的底部接合的矫直机，用于1）使可伸长的腿移动到水平地面接合位置; 2）当两个腿接合地面时，使腿部锁定;以及3）使可伸展腿部当从地面抬起时，移动到中心/缩回位置。矫直机包括棘爪，连杆，小齿轮和形成四杆连杆的轴，用于当小齿轮和轴可自由转动时选择性地将棘爪向内移动到分离位置，但是当轴与轴由于两腿的地面接合而抵抗运动。矫直机可以构造成附接到侧轨的内侧，从而便于预组装。

2. 发明申请

US20140291072A1 LADDER LEVELER APPARATUS 有权
公开(公告)号：US20140291072A1
公开(公告)日：2014-10-02
申请号：US14242311
申请日：2014-04-01
申请人： Jershon, Inc.
发明人： Rodney Kurzer , Brian D. Webster , Geoffrey R. White , Steven A. Owen , Tyler L. Sharp , Kenneth S. Bostwick , Gregory L. Bishop
IPC分类号： E06C7/44
CPC分类号： E06C7/44 , E06C7/46 , Y10T29/49813
摘要： A ladder includes a leveler engages a bottom of each side rail for 1) causing extendable legs to move to a level ground-engaging position, 2) causing the legs to lock when both legs engage the ground, and 3) causing the extendable legs to move to a centered/retracted position when lifted from the ground. The leveler includes pawls, links, pinions, and a shaft forming a four-bar linkage for selectively moving the pawls inward to the disengaged position when the pinion and shaft are each freely rotatable, but selectively moving the pawl outward into locking engagement when the shaft resists movement due to ground engagement by both legs. The leveler can be constructed to attach to an inside of the side rails, thus facilitating pre-assembly.
摘要翻译：梯子包括一个与每个侧轨的底部接合的矫直机，用于1）使可伸长的腿移动到水平地面接合位置; 2）当两个腿接合地面时，使腿部锁定;以及3）使可伸展腿部当从地面抬起时，移动到中心/缩回位置。矫直机包括棘爪，连杆，小齿轮和形成四杆连杆的轴，用于当小齿轮和轴可自由转动时选择性地将棘爪向内移动到分离位置，但是当轴与轴由于两腿的地面接合而抵抗运动。矫直机可以构造成附接到侧轨的内侧，从而便于预组装。

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