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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：US10745968B2
公开(公告)日：2020-08-18
申请号：US16132181
申请日：2018-09-14
发明人： N. Ryan Moss , Aaron B. Major
IPC分类号： E06C1/397 , E06C7/16 , E06C7/18 , E06C1/393 , E06C1/18 , E04G1/24 , E06C1/39 , B60B33/06 , B60B33/00 , E06C7/42
摘要： A caster assembly for use with varies structures, including ladders and elevated platforms is provided. In one embodiment, the caster assembly includes a first wheel coupled with a first bracket and configured to rotate about a first axis relative to the first bracket. A shaft is coupled to the first bracket as well as to a second bracket. The first bracket is rotatable relative to the second bracket about a second axis, which may be coincident with, or parallel to, an axis of the shaft. A third bracket is coupled with the shaft and is rotatable about the second axis, the third bracket being selectively locked in at least two positions relative to the second bracket. A second wheel is coupled with the third bracket, the second wheel being rotatable relative to the third bracket about a third axis.
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公开(公告)号：US20190078385A1
公开(公告)日：2019-03-14
申请号：US16132181
申请日：2018-09-14
发明人： N. Ryan Moss , Aaron B. Major
IPC分类号： E06C1/397
CPC分类号： E06C1/397 , B60B33/0039 , B60B33/0068 , B60B33/063 , E04G1/24 , E04G2001/246 , E06C1/18 , E06C1/39 , E06C1/393 , E06C7/16 , E06C7/182 , E06C7/423
摘要： A caster assembly for use with varies structures, including ladders and elevated platforms is provided. In one embodiment, the caster assembly includes a first wheel coupled with a first bracket and configured to rotate about a first axis relative to the first bracket. A shaft is coupled to the first bracket as well as to a second bracket. The first bracket is rotatable relative to the second bracket about a second axis, which may be coincident with, or parallel to, an axis of the shaft. A third bracket is coupled with the shaft and is rotatable about the second axis, the third bracket being selectively locked in at least two positions relative to the second bracket. A second wheel is coupled with the third bracket, the second wheel being rotatable relative to the third bracket about a third axis.
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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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