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1. 发明授权

US5303975A Convertible backpack chair 失效
标题翻译：敞篷背包椅
公开(公告)号：US5303975A
公开(公告)日：1994-04-19
申请号：US825505
申请日：1992-01-24
申请人： Simon Asato
发明人： Simon Asato
IPC分类号： A45F4/02
CPC分类号： A45F4/02
摘要： A chair conversion device for a backpack of the type having an external H-bar frame configuration which includes a pair of generally straight tubular side members each of which are pivotally connected adjacent their middle portions to existing side frame members of a provided backpack frame. The tubular side members are swingable through an arcuate range of motion between a first generally upright, storage position to a second open, chair use position. While in the open, chair use position, the bottom end portions of each tubular member form chair rear leg members for the resulting backpack folding chair. A pair of side strap members connect the bottom portions of each chair rear leg member to a bottom portion of the backpack frame to form right and left triangular side supports. An additional transverse strap connects each chair rear leg portion to each other to provide lateral stiffness for the backpack folding chair. A fabric type seat member having side ends folded over and hemmed closed to form loops attaches to and extends between the upper ends of the tubular side members to form the seating surface. In an alternate embodiment the seat member is cut in a trapezoidal configuration and is attached to the upper ends of the tubular side members in a manner such that the long side of a trapezoid forms the leading edge of the seating surface to create a cradle having a greater drop. In another alternate embodiment for the chair conversion device, a single, generally U-shaped tubular frame member is substituted in place of the two tubular side members and transverse strap member arrangement such that a bottom transversely oriented portion of the U-shaped member forms part of the chair rear leg support when the U-shaped frame member is pivoted to the open, chair use position.
摘要翻译：一种用于背包类型的椅子转换装置，其具有外部H形框架结构，其包括一对大致直的管状侧部构件，每个侧部构件相邻于其中间部分枢转地连接到所提供的背包框架的现有侧框架构件。管状侧构件能够在第一大致直立的存放位置与第二打开的椅子使用位置之间摆动通过弓形运动范围。在开放的椅子使用位置，每个管状构件的底端形成用于所得的背包折叠椅的椅子后腿构件。一对侧带构件将每个椅子后腿构件的底部连接到背包框架的底部，以形成左右三角形侧支撑件。另外的横向带将每个椅子后腿部彼此连接以提供用于背包折叠椅的侧向刚度。一种织物型座椅构件，其侧端折叠并且封闭以形成环，连接到管状侧构件的上端之间并在管状侧构件的上端之间延伸，以形成座面。在替代实施例中，座椅构件被切割成梯形构造并且以这样的方式附接到管状侧构件的上端，使得梯形的长边形成座椅表面的前缘以形成具有更大的下降。在椅子转换装置的另一替代实施例中，代替两个管状侧构件和横向带构件布置来代替单个大体上U形的管状框架构件，使得U形构件的底部横向定向部分形成部分当U形框架构件枢转到打开的椅子使用位置时椅子后腿支撑。

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