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公开(公告)号：US20200232278A1
公开(公告)日：2020-07-23
申请号：US16841294
申请日：2020-04-06
摘要： Various embodiments of ladders, ladder legs, ladder feet, foot mechanisms for ladders, and related methods are provided herein. In one embodiment, a foot is pivotal relative to a leg or rail of the ladder between a first position and at least a second position. A biasing force is applied to the foot to maintain the foot in either of the user-selected positions until a force is applied to pivot the foot to another position. In one embodiment, the foot mechanism maintaining the foot at a desired position may include a pair of pins that couple the foot to another component (e.g., a housing member, an insert member or a rail of the ladder). At least one of the two pins may be displaceable relative to the other pin during pivoting of the foot.
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公开(公告)号：US20180094488A1
公开(公告)日：2018-04-05
申请号：US15724547
申请日：2017-10-04
摘要： Ladders and ladder components are provided including feet for ladders configured for securement of the ladder to a supporting surface, adjustable leg members for ladders, bearing members for ladders, and adjustment mechanisms for ladders. In one embodiment, an adjustment mechanism may include a first pair of spaced apart rails, a pair of adjustable legs having a first end hingedly coupled to one of a pair of adjustment mechanisms and a second end coupled with a foot. The adjustment mechanisms may be slidably coupled with the rails and in one embodiment, each adjustment mechanism is selectively displaceable along a length of its associated rail only when upward force is absent from the adjustment mechanism, the upward force being defined in a direction from a lower end of the associated rail towards the adjustment mechanism.
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公开(公告)号：US20170356244A1
公开(公告)日：2017-12-14
申请号：US15622343
申请日：2017-06-14
摘要： Ladders, ladder components and related methods are provided including embodiments of a hinge that may be used in a combination ladder. In one embodiment, a hinge mechanism includes a first hinge assembly and a second hinge assembly. The first and second hinge assemblies are coupled together for relative rotation about a defined axis. An adjustment mechanism enables the two hinge assemblies to be selectively locked or unlocked to prohibit or permit relative rotation, respectively. In one embodiment, the adjustment mechanism includes a lock plate displaceable along a first axis and a retainer displaceable along a second axis. The retainer is configured to hold the lock plate in a disengaged state until a release structure displaces the retainer away from the lock plate. The release structure may be configured to be actuated and displace the retainer upon relative rotation of the hinge assemblies to (or through) a predetermined angular configuration.
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4.发明申请公开(公告)号：US20150267468A1
公开(公告)日：2015-09-24
申请号：US14661504
申请日：2015-03-18
摘要： A ladder is provided having a first assembly and a second assembly slidably coupled with the first assembly. The first assembly includes a first pair of spaced apart rails and a first plurality of rungs extending between and coupled to the first pair of spaced apart rails. the second assembly includes a second pair of spaced apart rails and a second plurality of rungs extending between and coupled to the second pair of spaced apart rails. A support apparatus is coupled with the first assembly and includes one or more arms that are pivotally displaced from a refracted position to a deployed position responsive to displacement of the first assembly a specified distance relative to the second assembly.
摘要翻译： 提供了具有第一组件和与第一组件可滑动联接的第二组件的梯子。 第一组件包括第一对间隔开的轨道和在第一对间隔开的轨道之间延伸并耦合到第一对间隔开的轨道的第一多个梯级。 所述第二组件包括第二对间隔开的轨道和在所述第二对间隔开的轨道之间延伸并耦合到所述第二对间隔开的轨道的第二多个梯级。 支撑装置与第一组件联接并且包括一个或多个臂，其响应于第一组件相对于第二组件的特定距离的位移而从折射位置枢转地移位到展开位置。
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公开(公告)号：US10801261B2
公开(公告)日：2020-10-13
申请号：US15622343
申请日：2017-06-14
摘要： Ladders, ladder components and related methods are provided including embodiments of a hinge that may be used in a combination ladder. In one embodiment, a hinge mechanism includes a first hinge assembly and a second hinge assembly. The first and second hinge assemblies are coupled together for relative rotation about a defined axis. An adjustment mechanism enables the two hinge assemblies to be selectively locked or unlocked to prohibit or permit relative rotation, respectively. In one embodiment, the adjustment mechanism includes a lock plate displaceable along a first axis and a retainer displaceable along a second axis. The retainer is configured to hold the lock plate in a disengaged state until a release structure displaces the retainer away from the lock plate. The release structure may be configured to be actuated and displace the retainer upon relative rotation of the hinge assemblies to (or through) a predetermined angular configuration.
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公开(公告)号：US10214961B2
公开(公告)日：2019-02-26
申请号：US14624360
申请日：2015-02-17
发明人： N. Ryan Moss , Gary M. Jonas , Chad Grotegut , Sean R. Peterson , Brian B. Russell , Stephen E. Boynton , Ryan Crawford , Darius S. Penrod
摘要： The present invention relates to ladders and, more particularly, various configurations of ladders including straight and extension ladders, as well as to methods relating to the use and manufacture of such ladders. In accordance with one embodiment of the present invention, a ladder is provided that includes a first pair of spaced apart rails and a plurality of rungs extending between and coupled to the first pair of spaced apart rails. The ladder also includes a pair of lateral support members, wherein each support member is selectively displaceable in a lateral direction relative to an associated rail. Additionally, the ladder includes a pair of adjustable legs, each leg having a first end slidably coupled to an associated rail of the first pair of spaced apart rails and being slidably coupled to an associated lateral support member.
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公开(公告)号：US20140202793A1
公开(公告)日：2014-07-24
申请号：US14162992
申请日：2014-01-24
发明人： Gary M. Jonas , Gary Landon Worthington , Sean R. Peterson , N. Ryan Moss , Benjamin K. Jackson
IPC分类号： E06C7/44
摘要： Adjustable ladders may include a pair of side rails having a plurality of rungs extending therebetween, and a pair of adjustable legs associated with the side rails. A pair of swing arms may include a first end pivotally coupled with a side rail, or a bracket associated with the side rail, as well as a second end pivotally coupled with an adjustable leg. The swing arm may be configured as a nonlinear structure. In one embodiment, the swing arm may include a first section that extends from a second section at a defined angle. The first and second sections may exhibit different lengths. Adjustment mechanisms may be pivotally coupled with an upper end of the adjustable legs. In one embodiment, the adjustment mechanisms may be configured such that, when actuated, they may be displaced in one direction while resisting displacement in a second, opposite direction.
摘要翻译： 可调节的梯子可以包括一对侧轨，其具有在其间延伸的多个梯级，以及与侧轨相关联的一对可调节腿。 一对摆臂可以包括与侧轨或与侧轨相关联的支架枢转地连接的第一端，以及与可调节腿枢转联接的第二端。 摆臂可以被配置为非线性结构。 在一个实施例中，摆臂可以包括以限定的角度从第二部分延伸的第一部分。 第一和第二部分可以表现出不同的长度。 调整机构可以与可调节腿的上端枢转联接。 在一个实施例中，调节机构可以被配置为使得当被致动时，它们可以在一个方向上移位，同时抵抗在第二相反方向上的位移。
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公开(公告)号：US20130118833A1
公开(公告)日：2013-05-16
申请号：US13733733
申请日：2013-01-03
发明人： N. Ryan Moss , Gary M. Jonas , Chad Grotegut , Sean R. Peterson , Brian B. Russell , Stephen E. Boynton , Ryan Crawford , Darius S. Penrod
IPC分类号： E06C7/00
CPC分类号： E06C1/12 , E06C7/00 , E06C7/003 , E06C7/423 , Y10T29/49826
摘要： The present invention relates to ladders and, more particularly, various configurations of ladders including straight and extension ladders, as well as to methods relating to the use and manufacture of such ladders. In accordance with one embodiment of the present invention, a ladder is provided that includes a first pair of spaced apart rails and a plurality of rungs extending between and coupled to the first pair of spaced apart rails. The ladder also includes a pair of lateral support members, wherein each support member is selectively displaceable in a lateral direction relative to an associated rail. Additionally, the ladder includes a pair of adjustable legs, each leg having a first end slidably coupled to an associated rail of the first pair of spaced apart rails and being slidably coupled to an associated lateral support member.
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公开(公告)号：US10590702B2
公开(公告)日：2020-03-17
申请号：US15724547
申请日：2017-10-04
摘要： Ladders and ladder components are provided including feet for ladders configured for securement of the ladder to a supporting surface, adjustable leg members for ladders, bearing members for ladders, and adjustment mechanisms for ladders. In one embodiment, an adjustment mechanism may include a first pair of spaced apart rails, a pair of adjustable legs having a first end hingedly coupled to one of a pair of adjustment mechanisms and a second end coupled with a foot. The adjustment mechanisms may be slidably coupled with the rails and in one embodiment, each adjustment mechanism is selectively displaceable along a length of its associated rail only when upward force is absent from the adjustment mechanism, the upward force being defined in a direction from a lower end of the associated rail towards the adjustment mechanism.
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公开(公告)号：US20180230746A1
公开(公告)日：2018-08-16
申请号：US15897995
申请日：2018-02-15
摘要： Various embodiments of ladders, ladder legs, ladder feet, foot mechanisms for ladders, and related methods are provided herein. In one embodiment, a foot is pivotal relative to a leg or rail of the ladder between a first position and at least a second position. A biasing force is applied to the foot to maintain the foot in either of the user-selected positions until a force is applied to pivot the foot to another position. In one embodiment, the foot mechanism maintaining the foot at a desired position may include a pair of pins that couple the foot to another component (e.g., a housing member, an insert member or a rail of the ladder). At least one of the two pins may be displaceable relative to the other pin during pivoting of the foot.
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