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公开(公告)号：US11536088B2
公开(公告)日：2022-12-27
申请号：US16794180
申请日：2020-02-18
发明人： Luhao Leng
摘要： The present disclosure discloses a folding ladder and a top tray thereof. The top tray comprises a fixed plate and a movable plate. The movable plate is disposed on a rear side of the fixed plate and is rotatably connected to the fixed plate, and the movable plate is configured to be rotated to switch between an unfolded position and a folded position. When the movable plate is in the unfolded position, the movable plate is horizontally arranged side-by-side with the fixed plate, and a rear surface of the fixed plate abuts a front surface of the movable plate to maintain the movable plate in a horizontal position and to resist a downward force of gravity. When the movable plate is subjected to an upward pushing force and is rotated to be folded into the folded position, the movable plate abuts the rear side of the fixed plate.
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公开(公告)号：US20220213732A1
公开(公告)日：2022-07-07
申请号：US17571306
申请日：2022-01-07
申请人： John E. Dickman
发明人： John E. Dickman
摘要： A ladder comprises a front leg and a rear leg connected by a slider bracket. The slider bracket comprises a base and a track. The base comprises an aperture therein. The track extends away from the base and comprises a slot therein. The base is rotatably coupled to the front leg by a front pin in the aperture. The track is slidably coupled to the rear leg by a rear pin in the slot. When spreading the rear leg away from the front leg, the base pivots around the front pin as the rear pin slides in the slot of the track until the rear pin reaches the end of the slot in the track. The slot also may include a latch at the end of the slot that engages the rear pin.
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公开(公告)号：US10801263B2
公开(公告)日：2020-10-13
申请号：US15903904
申请日：2018-02-23
申请人： Joseph Dangrow , Troy Johnson , Derek Bibler , Christopher Ruppen
发明人： Joseph Dangrow , Troy Johnson , Derek Bibler , Christopher Ruppen
摘要： A ladder having a plane having a periphery. The plane having a body opening to receive a body of an impact driver and a trigger recess extending from the body opening to receive a trigger of the impact driver. The body opening conforming to a shape of the body and the trigger recess conforming to the shape of the trigger. The body opening and the trigger recess holding the impact driver when the impact driver is placed on the top. A ladder top. A method for using an impact driver with a ladder.
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公开(公告)号：US10767418B2
公开(公告)日：2020-09-08
申请号：US16144675
申请日：2018-09-27
摘要： A stepladder assembly has a front section with a pair of side rails and a plurality of steps extending between the pair of side rails, a back section having a rail, and a frame pivotally connected or interconnected to the front section. The frame has a collar receiving an upper end of the rail of the back section therein. A ladder top is affixed to an upper end of the front section. The frame is pivotally affixed to the ladder top. The frame has a horizontal member positioned above the collar, and first and second side members extending from the collar to opposite ends of the horizontal member.
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公开(公告)号：US20190338590A1
公开(公告)日：2019-11-07
申请号：US15971965
申请日：2018-05-04
摘要： The present disclosure is directed to a ladder system. A ladder system may comprise a first section comprising: a first rail, a second rail, and a first support connected to the first rail and the second rail; a second section comprising a first leg; a first connector for connecting, either directly or indirectly via one or more second connectors, the first section to the second section; and a ladder system-opening facilitator connected to the first section and the second section, wherein the first section is substantially parallel to the second section when the ladder system is in a closed position, wherein the ladder system-opening facilitator automatically completes an opening action for the ladder system in response to initiation of the opening action, and wherein the first section is angular to the second section when the ladder system is in an open position.
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公开(公告)号：US20190177987A1
公开(公告)日：2019-06-13
申请号：US16278113
申请日：2019-02-17
发明人： Dale Martin Neubauer
摘要： A scaffolding system is defined by a first primary platform connected to a first cantilevered ladder, a second primary platform connected to a second cantilevered ladder, and a work platform extending between and connected to the first and second primary platforms.
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公开(公告)号：US10100575B1
公开(公告)日：2018-10-16
申请号：US15435349
申请日：2017-02-17
发明人： Dale Martin Neubauer
摘要： A brace locking mechanism locks the foldable braces of a folding ladder in the open position. The brace locking mechanism is used with a ladder that has a stepped unit and a support unit foldably attached to the stepped unit with a foldable brace extending between the stepped unit and the support unit. The brace locking mechanism comprises a lock block that is movable between a locked position in which the lock block prevents the foldable braces from moving out of their open position when the ladder is open, and an unlocked position in which the ladder may be folded into the storage position.
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公开(公告)号：US09689204B2
公开(公告)日：2017-06-27
申请号：US14424113
申请日：2014-01-29
申请人： Tokuo Aoi , Tazuko Aoi
发明人： Tokuo Aoi , Tazuko Aoi
摘要： A stepladder provided with a coupling frame in the shape of an equilateral triangle, a front support, a rear right support, a rear left support, and spread stoppers for stopping the front support, the rear right support, and the rear left support from spreading. The front support is rotationally attached to a front shaft of the coupling frame, the rear right fixing member is rotationally attached to a right shaft, and the rear left fixing member is rotationally attached to a left shaft. The rear left support and the rear right support are detachably mounted to the rear left fixing member and the rear right fixing member, respectively. The supports of the stepladder are coupled by the spread stoppers, whereby the three supports are restricted from being displaced forward, to the right rear, and to the left rear.
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公开(公告)号：US20160177625A1
公开(公告)日：2016-06-23
申请号：US14575521
申请日：2014-12-18
申请人： Shih-Chieh CHANG
发明人： Shih-Chieh CHANG
摘要： A working ladder has a pair of ladder frames and a supporting shaft. The pair of ladder frames are pivotally connected to each other, and each one of the pair of ladder frames has a first side rail, a second side rail, a foot stem and multiple rungs. The first side rail is pivotally connected to the other first side rail. The second side rail is pivotally connected to the other second side rail and is parallel with the first side rail of the ladder frame. The foot stem is adjustably connected to the second side rail and has a connecting end, an abutting end and a fixing segment. The rungs are securely and transversally connected to the first side rail and the second side rail at intervals. The supporting shaft is connected to the pair of ladder frames and has a jointing end and a locating end.
摘要翻译： 工作梯有一对梯架和支撑轴。 一对梯架彼此枢转地连接，并且一对梯架中的每一个具有第一侧轨，第二侧轨，脚杆和多个梯级。 第一侧轨可枢转地连接到另一第一侧轨。 第二侧轨可枢转地连接到另一第二侧轨，并与梯架的第一侧轨平行。 脚杆可调节地连接到第二侧轨，并具有连接端，邻接端和固定段。 梯级间隔地牢固且横向地连接到第一侧轨和第二侧轨。 支撑轴连接到一对梯架，并具有连接端和定位端。
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公开(公告)号：US08684139B2
公开(公告)日：2014-04-01
申请号：US13127074
申请日：2009-11-05
申请人： Luhao Leng
发明人： Luhao Leng
摘要： A step tool has front and rear leg tubes, a bottom and top footplate, a connection device for connecting the footplate and the leg tubes, a lock catch device of the top footplate. The front leg tubes are joined to the rear leg tubes rotatablely. The foreside of the top footplate joins to the front leg tubes rotatablely. A rail is fixed on the rear leg tubes. The lock catch is disposed on the top footplate and is detachly connected to the rail. The lock catch device includes two connecting ears, a rotation axis, a lock catch and a torsion spring.
摘要翻译： 步进工具具有前腿和后腿管，底部和顶部底板，用于连接脚踏板和腿部管的连接装置，顶部踏板的锁定装置。 前腿管可旋转地连接到后腿管。 顶部板的前部可旋转地连接到前腿管。 轨道固定在后腿管上。 锁扣设置在顶板上，并分离地连接到导轨上。 锁扣装置包括两个连接耳，旋转轴，锁扣和扭簧。
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