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公开(公告)号：US11739534B2
公开(公告)日：2023-08-29
申请号：US16878829
申请日：2020-05-20
摘要： A folding staircase for use in a door opening having a threshold. The folding staircase has a pair of stringers that have an upper end and a lower end that is adapted for contacting a ground surface. The stringers are spanned by at least one tread. A hinge is connected to a floor near the door opening and a threshold plate pivotally connected thereto is movable between a use position and a stowed position. The staircase may be provided with a lifting mechanism that biases the staircase and threshold plate toward their stowed positions. The lifting device provides a variable force that provides more rotational force when the staircase would require a user to bear more of its weight and less force when less of the weight of the staircase would be borne by a user.
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公开(公告)号：US09903121B2
公开(公告)日：2018-02-27
申请号：US15615102
申请日：2017-06-06
摘要： A folding staircase for use in a door opening having a threshold. The folding staircase has a pair of stringers that have an upper end and a lower end that is adapted for contacting a ground surface. The stringers are spanned by at least one tread. A hinge is connected to a floor near the door opening and a threshold plate pivotally connected thereto is movable between a use position and a stowed position. The staircase may be provided with a lifting mechanism that biases the staircase and threshold plate toward their stowed positions. The lifting device provides a variable force that provides more rotational force when the staircase would require a user to bear more of its weight and less force when less of the weight of the staircase would be borne by a user.
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公开(公告)号：US5131493A
公开(公告)日：1992-07-21
申请号：US603712
申请日：1990-11-21
申请人： Stig Johansen
发明人： Stig Johansen
摘要： Emergency stairs are designed to be mounted externally on buildings and are provided with platforms at each floor as well as ladders/staircases between the platforms. Platforms are hinged to the house wall and are at their extreme edges connected by the air of mutually articulated connecting means. The ladders/staircases are suspended from the underside of the platforms in articulated members under openings in the platforms and with the rungs of the ladder arranged in parallel with the house wall. The ladders are at their lower ends slidably supported by the next lower platform. In a position of non-use platforms and ladders are retracted into contact with the house wall and may be actuated by an actuating mechanism which may be operated from each floor.
摘要翻译： PCT No.PCT / NO89 / 00048 Sec。 371日期1990年11月21日 102（e）1990年11月21日日期PCT提交1989年5月12日PCT公布。 出版物WO89 / 11312 日期为1989年11月30日。紧急楼梯设计为外部安装在建筑物上，并在每个楼层设有平台以及平台之间的梯子/楼梯。 平台铰接到房屋墙壁上，并且处于通过相互铰接的连接装置的空气连接的极端边缘。 梯子/楼梯在平台的开口处的铰接构件的平台的下侧悬挂，梯子的梯级与房屋壁平行布置。 梯子的下端由下一个较低的平台可滑动地支撑。 在不使用的平台和梯子的位置缩回与房屋壁接触并且可以由可从每个楼层操作的致动机构致动。
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公开(公告)号：US5117940A
公开(公告)日：1992-06-02
申请号：US788740
申请日：1991-11-07
申请人： Richard J. Garelick
发明人： Richard J. Garelick
摘要： One end of a leg of a boat ladder is swivably and pivotably affixed to the side of a boat and the corresponding end of the other leg of the ladder is releasably latched or hooked to one of a pair of brackets located on the same side of the boat forward and aft of the affixed attachment. The ladder is stored in a vertically upright position with the second leg latched onto one of the pair of brackets. To be put to use the second leg first is unhooked from the bracket and swung outward in a generally horizontal arc of about 180 degrees until it reaches the other of the pair of brackets and is then latched or hooked onto the other of the pair of brackets and then the ladder is swung vertically outward and downward toward or into the water. Standoffs may be provided on each leg of the ladder to support the ladder against and away from the side of the boat or the "logs" or floats of a pontoon boat.
摘要翻译： 船梯的一条腿的一端可旋转地枢转地固定在船的侧面，梯子的另一条腿的相应端部可释放地锁定或钩挂在位于同一侧的一对托架中的一个 船前后船尾附着物。 梯子被存放在垂直直立的位置，第二条腿锁定在一对支架中的一个上。 首先使用的第二条腿从支架上脱下并以约180度的大致水平的弧向外摆动，直到其到达另一对支架，然后被锁定或钩在另一对支架上 然后梯子垂直向外和向下摆动或朝向水中。 可以在梯子的每条腿上设置支架，以支撑梯子抵靠和离开船的侧面或浮船的“原木”或浮子。
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公开(公告)号：US3982608A
公开(公告)日：1976-09-28
申请号：US585311
申请日：1975-06-09
申请人： Frederick Booth
发明人： Frederick Booth
IPC分类号： E06C9/10
CPC分类号： E06C9/10
摘要： Fire escape apparatus having a flight of stairs formed of a smooth material having treads and risers and which is mounted beneath a balcony for swinging movement between a horizontal position and a downwardly inclined position, the treads and risers being so shaped that when the flight of stairs is in the inclined position, the treads slope inwardly and downwardly and the risers curve outwardly and downwardly to the treads so as to facilitate descent in a sitting position and to enable the stairs to be climbed in a normal manner.
摘要翻译： 具有由具有胎面和立管的平滑材料形成的楼梯的消防逃生装置，其安装在阳台下方以在水平位置和向下倾斜位置之间摆动，胎面和立管的形状使得当楼梯的飞行时 处于倾斜位置，胎面向内和向下倾斜，并且提升管向外和向下弯曲到胎面，以便于在就座位置下降并使楼梯以正常方式爬升。
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公开(公告)号：US1334921A
公开(公告)日：1920-03-23
申请号：US25111118
申请日：1918-08-23
申请人： ISADORE POMERANTZ
发明人： ISADORE POMERANTZ
IPC分类号： E06C9/10
CPC分类号： E06C9/10
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公开(公告)号：US987494A
公开(公告)日：1911-03-21
申请号：US1910559810
申请日：1910-05-06
申请人： SCHERRER FRANZ
发明人： SCHERRER FRANZ
IPC分类号： E06C9/10
CPC分类号： E06C9/10
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公开(公告)号：US934667A
公开(公告)日：1909-09-21
申请号：US1908461173
申请日：1908-11-05
发明人： HANSERD JAMES GRANT
CPC分类号： E06C9/10
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