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1.发明公开公开(公告)号：US20240044205A1
公开(公告)日：2024-02-08
申请号：US18486940
申请日：2023-10-13
Applicant: LITTLE GIANT LADDER SYSTEMS, LLC
Inventor： Wesley V. Clark , N. Ryan Moss
CPC classification number: E06C1/32 , E06C7/182 , E06C1/12 , E06C1/18 , E06C7/48 , E06C7/06 , E06C7/46 , E06C7/081 , E06C7/50
Abstract: A ladder and ladder accessory are provided including an accessory that may be coupled to the ladder in multiple configurations and serve multiple purposes. In one embodiment, a pair of components are each selectively coupled with associated rails of a ladder in a first, stored state, and a second, walkthrough state. When in the walkthrough state, the components extend upwards from and above the rails so that a user may gasp the components and step between the components when transitioning from the ladder to an elevated surface (e.g., a roof) or vice versa. In another embodiment, the components may be coupled to the ladder such that they extend in a direction that is substantially transverse to a plane through which the rails extend. When in this transverse orientation, the components may be used as a stand-off device.
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公开(公告)号：US20230203889A1
公开(公告)日：2023-06-29
申请号：US17565105
申请日：2021-12-29
Applicant: Bighorn Products, LLC
Inventor： Benjamin Johnson , Chad Johnson , Les Slunecka
IPC: E06C7/48
Abstract: A ladder stabilizer attachment device secures a ladder stabilizer to a ladder. The device includes a sleeve including an outer wall. The outer wall has an outer face, an inner face, an upper end, and a lower end. The lower end is open. A slot extends into the inner face from the lower end to receive a top end of a ladder side rail and an uppermost rung of the ladder into the slot. A top edge of the slot defines a stop whereby the stop rests upon the uppermost rung of the ladder. A coupler is mounted to the sleeve. The coupler releasably engages the uppermost rung of the ladder.
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公开(公告)号：US07048094B2
公开(公告)日：2006-05-23
申请号：US11061390
申请日：2005-02-18
Applicant: Mitchell I. Kieffer , Wang Kuo Hua , Craig S. Aizman
Inventor： Mitchell I. Kieffer , Wang Kuo Hua , Craig S. Aizman
CPC classification number: E06C1/125 , E06C7/06 , E06C7/083 , E06C7/088 , Y10T403/32467
Abstract: Extending ladders and associated manufacturing methods are disclosed. A ladder in accordance with an exemplary embodiment of the present invention comprises a plurality of rung units, each rung unit including a left column, a right column, and a rung extending between the left column and the right column. The ladder may include a first column assembly including a first column and a ring coupled to the first column proximate a distal end thereof, and a second column assembly including a second column and a sleeve coupled to the second column proximate a proximal end thereof. The second column being at least partially disposed within a lumen defined by an internal surface of the first column. The sleeve includes an external guiding surface for contacting the internal surface of the first column and the ring includes an internal guiding surface for contacting an exterior surface of the second column.
Abstract translation: 披露了梯子和相关的制造方法。 根据本发明的示例性实施例的梯子包括多个梯级单元，每个梯级单元包括左列，右列和在左列和右列之间延伸的梯级。 梯子可以包括第一柱组件，其包括第一柱和耦合到靠近其远端的第一柱的环;以及第二柱组件，其包括第二柱和在其近端附近联接到第二柱的套筒。 第二列至少部分地设置在由第一列的内表面限定的内腔内。 套筒包括用于接触第一柱的内表面的外部引导表面，并且环包括用于接触第二柱的外表面的内部引导表面。
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公开(公告)号：US20050269159A1
公开(公告)日：2005-12-08
申请号：US10862961
申请日：2004-06-07
Applicant: Cho Lin
Inventor： Cho Lin
Abstract: Either frame of a telescopic stepladder comprises a support section, one or more sliding sections, a plurality of locking mechanisms each disposed in either locking portion of two sections and in one embodiment including a fastener adapted to fasten the side rail of one section and the side rail of the other section together, and a lower spring depressible detent adapted to lock both sections. Pushing the braces upward, moving both frames toward each other, unfastening the fasteners, unlocking the detents, and sliding down the sliding sections to a limit will retract the sliding sections with respect to the support sections or the retracted sliding sections.
Abstract translation: 可伸缩梯子的任一框架包括支撑部分，一个或多个滑动部分，多个锁定机构，每个锁定机构设置在两个部分的任一个锁定部分中，并且在一个实施例中包括紧固件，该紧固件适于紧固一个部分的侧轨和侧面 一起的另一部分的轨道，以及适于锁定两个部分的下弹簧可压下的制动器。 向上推动支架，将两个框架朝向彼此移动，松开紧固件，解锁棘爪，并将滑动部分滑动至极限将相对于支撑部分或缩回的滑动部分缩回滑动部分。
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公开(公告)号：US20050139424A1
公开(公告)日：2005-06-30
申请号：US11061390
申请日：2005-02-18
Applicant: Mitchell Kieffer , Wang Hua , Craig Aizman
Inventor： Mitchell Kieffer , Wang Hua , Craig Aizman
CPC classification number: E06C1/125 , E06C7/06 , E06C7/083 , E06C7/088 , Y10T403/32467
Abstract: Extending ladders and associated manufacturing methods are disclosed. A ladder in accordance with an exemplary embodiment of the present invention comprises a plurality of rung units, each rung unit including a left column, a right column, and a rung extending between the left column and the right column. The ladder may include a first column assembly including a first column and a ring coupled to the first column proximate a distal end thereof, and a second column assembly including a second column and a sleeve coupled to the second column proximate a proximal end thereof. The second column being at least partially disposed within a lumen defined by an internal surface of the first column. The sleeve includes an external guiding surface for contacting the internal surface of the first column and the ring includes an internal guiding surface for contacting an exterior surface of the second column.
Abstract translation: 披露了梯子和相关的制造方法。 根据本发明的示例性实施例的梯子包括多个梯级单元，每个梯级单元包括左列，右列和在左列和右列之间延伸的梯级。 梯子可以包括第一柱组件，其包括第一柱和耦合到靠近其远端的第一柱的环;以及第二柱组件，其包括第二柱和在其近端附近联接到第二柱的套筒。 第二列至少部分地设置在由第一列的内表面限定的内腔内。 套筒包括用于接触第一柱的内表面的外部引导表面，并且环包括用于接触第二柱的外表面的内部引导表面。
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Patent Agency Ranking
公开(公告)号：US20020079166A1
公开(公告)日：2002-06-27
申请号：US10087546
申请日：2002-03-01
Inventor： Casey Walter Gaik
IPC: E06C007/06
Abstract: An extension ladder assembly is provided. The extension ladder assembly comprises a base section having a pair of base section rails and a plurality of base section rungs mounted between the base section rails and at least one fly section having a pair of fly section rails and a plurality of fly section rungs mounted between the fly section rails. At least one rung lock is secured to at least one of the fly section rails and selectively, releasably positionable about at least one base section rung to inhibit movement of the fly section in a generally downward direction. A latching member is rotationally mounted to each rung lock with the latching member selectively movable from a released position to a tensioned position. A biasing mechanism biases the latching member into the released position wherein in the released position, the latching member contacts the same base section rung as each corresponding rung lock.
Abstract translation: 提供延伸梯组件。 延伸梯组件包括具有一对基部轨道的基座部分和安装在基部轨道之间的多个基部梯级，以及至少一个飞行部分，其具有一对飞行导轨和多个飞行部分梯级， 飞行导轨。 至少一个梯级锁被固定到至少一个飞行导轨，并且可选择地，可释放地定位在至少一个基部横截面上，以阻止飞行部在大致向下的方向上的运动。 闩锁构件旋转地安装到每个梯级锁上，其中闩锁构件可选择性地从释放位置移动到张紧位置。 偏置机构将闩锁构件偏置到释放位置，其中在释放位置，闩锁构件接触与每个相应的梯形锁相同的基部。
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公开(公告)号：US20020053488A1
公开(公告)日：2002-05-09
申请号：US09978285
申请日：2001-10-17
Inventor： John B. Walden
IPC: E06C001/00
Abstract: The invention is an improvement to an A-frame ladder, adding to an A-frame ladder independent extension means allowing the ladder to be placed on uneven surfaces, stairs or level surfaces in a stable and level configuration, the improvement adding a sliding ladder segment attached to the A-frame ladder segments, locking bars on the sliding ladder segments spaced apart along the sliding ladder segments, sliding bracket mounts attaching each sliding ladder segment to the A-frame ladder segments, and pivoting spring-loaded locking catches securing the sliding ladder segment to the A-frame ladder segments.
Abstract translation: 本发明是A框架梯子的改进，增加了A框架梯子独立的延伸装置，允许梯子以稳定和水平的构造放置在不平坦的表面，楼梯或水平面上，改进了增加一个滑梯段 连接到A型梯子段上，滑梯上的锁定杆沿着滑梯梯段间隔开，滑动支架安装件将每个滑梯分段连接到A型梯子段，以及枢转弹簧加载的锁定卡扣固定滑动 梯子段到A框架梯段。
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公开(公告)号：US06269909B1
公开(公告)日：2001-08-07
申请号：US09440387
申请日：1999-11-15
Applicant: Ronald R. Grimes , Kelly E. Rasmussen , Jack W. Severson , William R. Isham
Inventor： Ronald R. Grimes , Kelly E. Rasmussen , Jack W. Severson , William R. Isham
IPC: E06C504
Abstract: An extension ladder comprised of a pair of base rails interlocked in a tongue and groove relationship with a pair of slide rails is disclosed. The rails may be manufactured in a variety of shapes including “I” beams, rectangles, boxes, or even ovals or circular shapes. Some embodiments of the ladder include a pulley assembly which is fastened to a fly rail rung and a rope is passed through the pulley to form a continuous loop around the rungs of the base set of rail rungs and the fly fail rungs. In addition, some embodiments include means for attaching tools to the fly rail.
Abstract translation: 公开了一种由与一对滑轨相互榫舌和沟槽互锁的一对基座导轨构成的延伸梯。 轨道可以以各种形状制造，包括“I”梁，矩形，箱，甚至椭圆形或圆形。 梯子的一些实施例包括一个滑轮组件，该滑轮组件被固定在飞行轨道上，并且绳索穿过皮带轮，以形成围绕基座组的轨道横梁的梯级和飞行失效梯级的连续环路。 此外，一些实施例包括用于将工具附接到飞轨的装置。
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公开(公告)号：US5896945A
公开(公告)日：1999-04-27
申请号：US547498
申请日：1995-10-24
Applicant: James E. Boelling
Inventor： James E. Boelling
Abstract: A ladder tie strap is wrapped around adjacent rungs of upper and lower ladder sections in an extension ladder to prevent the upper ladder section from accidentally retracting relative to the lower ladder section. A fair of tie straps may also be secured to the upper end of the ladder and fastened to a ladder support structure to stabilize the ladder against lateral movement. The structure may be a wall or a wire, and when a wire the straps are wrapped around the wire and around the ladder rung or ladder side members.
Abstract translation: 梯子领带缠绕在延伸梯的上下梯阶段的相邻梯级上，以防止上梯部相对于下梯部分意外收回。 一般的领带也可以固定在梯子的上端，并固定在梯子支撑结构上，以稳定梯子免受横向移动。 该结构可以是墙壁或电线，并且当电线将电线缠绕在电线上并且围绕梯子梯子或梯子侧构件缠绕时。
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公开(公告)号：US5429207A
公开(公告)日：1995-07-04
申请号：US197745
申请日：1994-02-17
Applicant: William H. Frank , Claude R. Wallick, Jr.
Inventor： William H. Frank , Claude R. Wallick, Jr.
Abstract: A rung lock frame and a mechanical latching structural assembly for selectively releasably locking and releasably and augmentally latching a pair of adjacently positioned rungs of relatively slidable ladder sections of an extension ladder, the rung lock frame and latching structure including guide rib and inclined ramp arrangement to permit ready movement of said latching structure into and out of augmental latching position on the rung lock frame.
Abstract translation: 梯形锁定框架和机械闩锁结构组件，用于选择性地可释放地锁定和可释放地并且增大地锁定延伸梯的相对可滑动的梯形部分的一对相邻定位的梯级，所述梯级锁定框架和闩锁结构包括引导肋和倾斜斜坡布置， 允许所述闩锁结构准备移动到梯形锁定框架上的伸出闩锁位置和从其移出。
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