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公开(公告)号：US09803422B2
公开(公告)日：2017-10-31
申请号：US14965155
申请日：2015-12-10
Applicant: Robert L. Johnson
Inventor： Robert L. Johnson
Abstract: A ladder support assembly including a base frame having first and second ends and a pair of pivot supports extending from the base frame which support a rod configured to pivotally support a ladder relative to the base frame. A pivot frame is pivotally mounted to the base frame and is biased away from the base frame. A bracket assembly is pivotally mounted to the pivot frame and includes a pair of bracket plates. Each bracket plate has an inner flange and outer flange with a ladder rail receiving area between the inner and outer flanges. The ladder receiving area is configured such that the bracket plate is slidable relative to a respective ladder rail received therein. A crank assembly includes a spool rotatably supported on the base frame and a cord wound about the spool with a free end of the cord connected relative to the pivot frame.
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公开(公告)号：US20170226803A1
公开(公告)日：2017-08-10
申请号：US15423844
申请日：2017-02-03
Applicant: Wing Enterprises, Incorporated
Inventor： Brian Russell , N. Ryan Moss
Abstract: Elevated work platform apparatuses, as well as associated methods, are provided. In one particular embodiment, an elevated platform apparatus is provided comprising a first assembly having a pair of rails coupled with a plurality of rungs, a second assembly hingedly coupled with the first assembly, a platform pivotally coupled with the first assembly and configured to extend to, and engage a portion of, the second assembly. The apparatus further includes a cage associated with the platform. The cage may include at least one bar and at least one gate, the at least one gate being configured to swing in a first direction upon a user stepping on to the platform from the first rail assembly, and then swing back to a closed position after the user is standing on the platform. Platform includes a toe-kick structure that is collapsible relative to the deck of the platform.
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公开(公告)号：US09663991B2
公开(公告)日：2017-05-30
申请号：US14241491
申请日：2012-08-24
Applicant: Peter A. Zorney , William J. McMaster , Ankur Bhosale
Inventor： Peter A. Zorney , William J. McMaster , Ankur Bhosale
Abstract: A ladder including a first stringer and a second stringer spaced transverse from each other is provided. Each of the first and second stringers defines a channel and includes a plurality of crosspieces disposed in the channels of the first and second stringers. A plurality of rungs are spaced along and coupled between the first and second stringers. Each of the rungs has a horizontal portion and a vertical portion extending from the first stringer to the second stringer. A plurality of ribs are spaced along and coupled between the horizontal and vertical portions of the rungs.
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公开(公告)号：US09422767B2
公开(公告)日：2016-08-23
申请号：US14179666
申请日：2014-02-13
Applicant: Wing Enterprises, Incorporated
Inventor： Brian Russell , Sean Peterson , Kristopher Jones , Bryan Wright
Abstract: Ladders and related methods of using and manufacturing stepladders are provided. In one embodiment, a stepladder is provided that comprises a first assembly hingedly coupled with a second assembly. The first assembly has a pair of spaced apart rails pivotally coupled with one or more rungs. The second assembly includes a pair of space apart rails with one or more bracing members extending therebetween. The first assembly and second assembly are configured to be displaced relative one another such that the stepladder is selectively positionable between a first, deployed state and a second, collapsed state. Upon rotation of the two assemblies relative to one another into a stowed condition, components of the second assembly engage undersurfaces of the rungs effecting rotation of at least a portion of each rung relative to the rails of the first assembly.
Abstract translation: 提供梯子和使用和制造梯子的相关方法。 在一个实施例中，提供了一种梯形梯，其包括与第二组件铰接地联接的第一组件。 第一组件具有与一个或多个梯级枢转地连接的一对间隔开的轨道。 第二组件包括一对间隔开的轨道，其中一个或多个支撑构件在其间延伸。 第一组件和第二组件被配置为相对于彼此移位，使得梯形图可选择性地定位在第一展开状态和第二折叠状态之间。 当两个组件相对于彼此旋转到收起状态时，第二组件的部件接合该梯级的下表面，以使每个梯级的至少一部分相对于第一组件的导轨旋转。
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公开(公告)号：US20160186494A1
公开(公告)日：2016-06-30
申请号：US15060048
申请日：2016-03-03
Applicant: Martin Sinclair Matthew
Inventor： Martin Sinclair Matthew
CPC classification number: E06C7/16 , E06C1/16 , E06C1/18 , E06C7/10 , E06C7/14 , E06C7/182 , E06C7/423
Abstract: The present invention is used on stepladders that are structured to provide improved lateral stability, step support and equipment/supplies support for stepladder users. The stepladder may have a step element and a support element rotatably attached at a top platform or a first step element rotatably attached to a second step element adjacent a top step. A hinged strut may be attached at opposed ends between the opposed elements intermediate the ladder top and the ladder base. A plurality of steps may be spaced apart and attached between step rails of step elements. A lateral support leg may be rotatably attached at a top end to each of the step rails intermediate a second step and a third step from the ladder top and a hinged leg strut may be attached at opposed ends between each of the support rails and lateral support legs.
Abstract translation: 本发明用于台阶梯架，其被构造成为梯形图用户提供改进的横向稳定性，步骤支撑和设备/供应支撑。 梯子可以具有台阶元件和可旋转地附接在顶部平台上的支撑元件或者可旋转地附接到邻近顶部台阶的第二台阶元件的第一阶梯元件。 铰链支柱可以在梯子顶部和梯子底座之间的相对元件之间的相对端附接。 多个台阶可以间隔开并且连接在台阶元件的台阶轨道之间。 横向支撑腿可以在顶端处可旋转地附接到从梯子顶部的第二步骤和第三步骤的中间的每个台阶轨道，并且铰接的支腿支柱可以在每个支撑轨道和横向支撑件之间的相对端部附接 腿
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Patent Agency Ranking
76.发明申请Multi-Positional Articulating Hinge with Internal Stops and Remote Actuation and Methods for Manufacturing the Same 审中-公开具有内部停止和远程驱动的多位置铰接铰链及其制造方法公开(公告)号：US20120061182A1
公开(公告)日：2012-03-15
申请号：US12878736
申请日：2010-09-09
Applicant: Ronald R. Grimes
Inventor： Ronald R. Grimes
CPC classification number: E04G1/34 , E05D11/1078 , E05Y2900/60 , E06C1/16 , E06C7/50 , Y10T16/540257
Abstract: An indexing hinge may be used with ladders and the like and provides stops at various indexed locations using radially-moving indexing pins. The indexing structure is contained within the hinge body substantially without projecting elements other than one or more indexing rods used to actuate the internal indexing mechanism.
Abstract translation: 分度铰链可以与梯子等一起使用，并且使用径向移动的分度销在各种索引位置处提供停止。 分度结构被包含在铰链体内，基本上不具有用于致动内部分度机构的一个或多个分度杆之外的突出元件。
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公开(公告)号：US5161909A
公开(公告)日：1992-11-10
申请号：US605147
申请日：1990-10-29
Applicant: Stephanie P. Crouse , Harold L. Bernard
Inventor： Stephanie P. Crouse , Harold L. Bernard
CPC classification number: E06C1/16 , E06C7/50 , Y10T24/344 , Y10T403/7141 , Y10T403/7176
Abstract: A packaging clip for maintaining a first side rail of a ladder adjacent a second side rail of a ladder. The clip comprises a first portion for removably holding the first side rail and a second portion for removably holding the second side rail. The clip also is comprised of a support element that is disposed such that it is common with the first portion and the second portion. In a preferred embodiment, the first portion includes a first opening for removably receiving the first side rail, and the second portion includes a second opening for removably receiving the second side rail. When the first side rail is inserted into the first opening of the first portion, and the second side rail is inserted into the second opening of the second portion, the clip limits and essentially eliminates the movement of the first side rail relative to the second side rail with respect to normal forces experienced during a given application. Thus, the ladder is not damaged by the first side rail moving excessively relative to the second side rail. In an alternate application, the first side rail of a ladder is maintained by the clip adjacent a second side rail of another ladder to facilitate transportation of the ladders.
Abstract translation: 一种用于保持梯子的第一侧轨与梯子的第二侧轨相邻的包装夹。 夹具包括用于可拆卸地保持第一侧轨的第一部分和用于可拆卸地保持第二侧轨的第二部分。 该夹子还包括一个支撑元件，该支撑元件设置成与第一部分和第二部分共同。 在优选实施例中，第一部分包括用于可移除地接收第一侧轨的第一开口，并且第二部分包括用于可拆卸地接收第二侧轨的第二开口。 当第一侧轨被插入到第一部分的第一开口中并且第二侧轨被插入到第二部分的第二开口中时，夹限制并且基本上消除了第一侧轨相对于第二侧的移动 相对于给定应用中经历的正常力的轨道。 因此，梯子不会被第一侧轨相对于第二侧轨过度地移动而损坏。 在替代的应用中，梯子的第一侧轨由靠近另一个梯子的第二侧轨的夹子保持，以便于梯子的运输。
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公开(公告)号：US5005280A
公开(公告)日：1991-04-09
申请号：US436965
申请日：1989-11-15
Applicant: Claude R. Wallick, Jr. , Thomas J. Schmitt
Inventor： Claude R. Wallick, Jr. , Thomas J. Schmitt
CPC classification number: E06C7/08 , E06C1/16 , Y10T29/4984 , Y10T29/4998
Abstract: A method of making foldable ladder structure wherein plastic material is injected and expanded in molds to form several parts of a foldable ladder which includes front and rear ladder sections that can be pivotally hinged at their upper portions, a collapsible shelf and spreader linkage to allow the sections to be relatively pivoted from collapsed face-to-face relation to erected position.
Abstract translation: 一种制造可折叠梯形结构的方法，其中塑料材料在模具中注射和膨胀以形成可折叠梯子的几个部分，其包括可以在其上部枢转地铰接的前后梯部分，可折叠货架和吊架连杆， 部分相对于从折叠的面对面关系枢转到竖立位置。
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公开(公告)号：US2643808A
公开(公告)日：1953-06-30
申请号：US15894550
申请日：1950-04-29
Applicant: HENRY MCALISTER
Inventor： HENRY MCALISTER
IPC: E06C1/16
CPC classification number: E06C1/16
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公开(公告)号：US2325793A
公开(公告)日：1943-08-03
申请号：US43054542
申请日：1942-02-12
Applicant: WILLIAM MUMBRAUER
Inventor： WILLIAM MUMBRAUER
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