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21. 发明授权

US2804250A Sectional ladders 失效
标题翻译：剖面梯
公开(公告)号：US2804250A
公开(公告)日：1957-08-27
申请号：US36013053
申请日：1953-06-08
申请人： BEILHARTZ MARY M
发明人： BEILHARTZ MARY M
IPC分类号： E06C7/10
CPC分类号： E06C1/39 , E06C7/10

22. 发明授权

US2525412A Tensioning device for step ladders 失效
标题翻译：梯级张紧装置
公开(公告)号：US2525412A
公开(公告)日：1950-10-10
申请号：US76390947
申请日：1947-07-26
申请人： STANLEY JASPER
发明人： STANLEY JASPER
IPC分类号： E06C7/10
CPC分类号： E06C7/10

23. 发明授权

US2178856A Ladder construction 失效
公开(公告)号：US2178856A
公开(公告)日：1939-11-07
申请号：US18664638
申请日：1938-01-24
申请人： HEIDER HENRY J
发明人： HEIDER HENRY J
IPC分类号： E06C7/10
CPC分类号： E06C7/10

24. 发明授权

US1501977A Ladder 失效
公开(公告)号：US1501977A
公开(公告)日：1924-07-22
申请号：US66263323
申请日：1923-09-14
申请人： GOSHEN MFG COMPANY
发明人： WEAVER EARL L
IPC分类号： E06C7/10
CPC分类号： E06C7/10

25. 发明公开

US20230399893A1 LADDERS AND LADDER BRACING 审中-公开
公开(公告)号：US20230399893A1
公开(公告)日：2023-12-14
申请号：US18457167
申请日：2023-08-28
申请人： Little Giant Ladder Systems, LLC
发明人： N. Ryan Moss , Benjamin Cook
IPC分类号： E06C7/10 , E06C1/12 , E06C1/22 , E06C1/32
CPC分类号： E06C7/10 , E06C1/12 , E06C1/22 , E06C1/32
摘要： A ladder with bracing is provided. In one embodiment, the ladder may include a first rail assembly comprising a pair of inner rails and a pair of outer rails, the pair of inner rails being slidably disposed in a upper portion of pair of outer rails, wherein a rear surface of each of the pair of outer rails lies in a common plane. A first plurality of rungs may be coupled between the pair of inner rails, and a second plurality of rungs coupled between the pair of outer rails. A brace may extend between and be coupled to the pair of outer rails, wherein the brace includes a first ramped surface, the first ramped surface having a first portion spaced away from the common plane, a second portion immediately adjacent the common plane, and a transition portion extending between the first portion and the second portion.

26. 发明申请

US20210032932A1 BRACES FOR LADDERS, LADDERS INCORPORATING SAME AND RELATED METHODS 有权
公开(公告)号：US20210032932A1
公开(公告)日：2021-02-04
申请号：US17072884
申请日：2020-10-16
申请人： WING ENTERPRISES, INCORPORATED
发明人： Benjamin L. Cook , N. Ryan Moss , Brian B. Russell
IPC分类号： E06C7/10 , E06C1/06 , E06C7/08 , E06C1/18 , E06C1/16 , E06C1/393 , E06C7/50 , E06C7/46
摘要： Ladder components, such as braces, as well as ladders and methods of manufacturing ladders are provided. In one embodiment, a ladder brace is provided which extends between a rail and a cross member (e.g., a rung or a cross-brace). The ladder brace may include a first connecting portion associated with the rail, a second connecting portion associated with the cross member, and a strut portion extending between the first and second connecting portions. At least one of the first connecting portion and the second connecting portion is configured to completely encircle its associated component (e.g., either the rail or the cross member, respectively).

27. 发明授权

US10895110B2 Ladder stabilizer 有权
公开(公告)号：US10895110B2
公开(公告)日：2021-01-19
申请号：US16150907
申请日：2018-10-03
申请人： Philip F. Lanzafame
发明人： Philip F. Lanzafame
IPC分类号： E06C7/42 , E06C7/44 , E06C7/10
摘要： Provided is ladder having an extension leg movable longitudinally in first and second directions opposite one another, and a stabilizer arm pivotably coupled to and movable with the extension leg. The stabilizer arm is pivotable about an axis perpendicular to the first and second directions such that the stabilizer arm is rotated relative to the extension leg to contact a surface to stabilize the ladder in a sideways direction perpendicular to the first and second directions.

28. 发明授权

US09500027B2 Portal ladder 有权
标题翻译：门梯
公开(公告)号：US09500027B2
公开(公告)日：2016-11-22
申请号：US14471780
申请日：2014-08-28
申请人： Safariland, LLC
发明人： Brian Walter , Brad Glass
IPC分类号： E06C1/383 , E06C7/08 , E06C7/10 , E06C7/50 , E06C1/52
CPC分类号： E06C1/383 , E06C1/52 , E06C7/08 , E06C7/10 , E06C7/50
摘要： A foldable ladder has multiple ladder segments that fold and unfold relative to each other. Each ladder segment includes one rung element and multiple side rail sections that unfold for deployment to form box-shaped side rails of the ladder. Adjacent ladder segments are connected to each other by hinge joints. The ladder includes locking features at the hinge joints for preventing relative pivoting movement of adjacent ladder segments by more than about 180 degrees.
摘要翻译：可折叠的梯子具有相对于彼此折叠和展开的多个梯段。每个梯子段包括一个梯形元件和多个侧轨部分，其展开以展开以形成梯子的箱形侧轨。相邻的梯子段通过铰链接头相互连接。梯子包括在铰链接头处的锁定特征，用于防止相邻梯形段的相对枢转运动超过约180度。

29. 发明申请

US20150226002A1 Fixed Ladder Portable Mounted Support Assembly 审中-公开
标题翻译：固定式梯形便携式安装支架
公开(公告)号：US20150226002A1
公开(公告)日：2015-08-13
申请号：US14176116
申请日：2014-02-09
申请人： Dale Lee Johansen
发明人： Dale Lee Johansen
IPC分类号： E06C7/10
CPC分类号： E06C9/02 , E06C7/12
摘要： The invention provides an adjustable ladder mounted system to facilitate the use of a lifting or support apparatus. This steel clamping system distributes the weight to four (4) different locations of a permanently mounted fixed ladder. The clamping system adjusts for all common ladder rail/leg sizes, and differences in spacing of the ladder rungs. This design allows for ease of set-up and use by a single worker, results in a solidly supported lifting structure/pole/shaft, economically produced, and can be easily moved from one location to another.
摘要翻译：本发明提供了一种可调节的梯形安装系统，以便于使用提升或支撑装置。该钢夹紧系统将重量分配到永久安装的固定梯子的四（4）个不同位置。夹紧系统适用于所有常见的梯形轨道/腿部尺寸，以及梯级梯级间距的差异。该设计允许单个工人容易地进行安装和使用，从而形成一个坚固支撑的起重结构/杆/轴，经济地生产，并且可以容易地从一个位置移动到另一个位置。

30. 发明申请

US20120234628A1 Safety Attachment for Ladder 有权
标题翻译：梯子安全附件
公开(公告)号：US20120234628A1
公开(公告)日：2012-09-20
申请号：US13420639
申请日：2012-03-15
申请人： Richard David Spencer
发明人： Richard David Spencer
IPC分类号： E06C7/10
CPC分类号： E06C7/46
摘要： An extension ladder stabilizer includes a ladder rung engagement rod having threads along at least a portion of its length and configured to be disposed in and project from each end of a hollow tubular rung of an extension ladder, a pair of internal supports having a substantially gear shaped hole in each, a pair of external supports having a substantially gear shaped boss with a through hole on a first face and an anchor channel on a second face opposite the first face on each, and a pair of ground engagement members. In a ladder stabilizing configuration, the extension ladder stabilizer is installed on a ladder and the ground engagement members are passed through the anchor channels and into the ground to secure the ladder from side slipping, kicking back, and kicking over when in use.
摘要翻译：延伸梯子稳定器包括梯梯接合杆，其沿着其长度的至少一部分具有螺纹，并且构造成设置在延伸梯的中空管状梯架的每个端部并从其延伸;一对内部支撑件，其具有大致齿轮一对外部支撑件，其具有基本上为齿轮形的凸台，在第一面上具有通孔，在与第一面相对的第二面上具有锚定通道，以及一对接地构件。在梯子稳定结构中，延伸梯子稳定器安装在梯子上，并且地面接合构件穿过锚定通道并进入地面，以使梯子从侧面滑倒，踢回并在使用时踢起来。

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