초록 ▼

The pack frame has first and second rectangular frames pivotally interconnected to allow the frames to be opened to the limit imposed by a fabric seat mounted between the top members. A safety strap connects the bottom frame members to act as a back-up limit on separation of the frames. The frames c

The pack frame has first and second rectangular frames pivotally interconnected to allow the frames to be opened to the limit imposed by a fabric seat mounted between the top members. A safety strap connects the bottom frame members to act as a back-up limit on separation of the frames. The frames can be collapsed or folded and carried by shoulder straps connected to one of the frames at the top cross member and to the sides of the frame below the pivot. An optional backrest is fixed to the one frame to serve to support cargo when the frames are used as a backpack or to pivot, by removal of one of two mounting pins on each side to a lowered position, or to serve as a backrest when the seat is used. Optional side cargo bags are mounted to the pivot pins and are connected to each other by a strap passing over the seat. The invention also provides a spliced joint for each rectangular frame in the medial portion of the lower cross member. The splice has a tubular frame end fit over a fixed sleeve and is retained by a pin which also fixes the end of the safety strap. In one embodiment the tapered top of a box is fitted inside the inner frame and is held in that position the clevis pins which serve as the pivot pins for the frames.

대표청구항 ▼

A pack frame and seat device, comprising, first and second tubular closed rectangular frames each having parallel side legs and parallel top and bottom member, a fabric seat connected to the top member of both of said frames, the legs of the two frames being pivotally interconnected so said top memb

A pack frame and seat device, comprising, first and second tubular closed rectangular frames each having parallel side legs and parallel top and bottom member, a fabric seat connected to the top member of both of said frames, the legs of the two frames being pivotally interconnected so said top members are uppermost when the device is used as a pack frame with the top members brough together or as a seat with the top members spread apart with said seat spanning the space between said top members, a safety strap connected to the medial portion of each of said bottom members and extending between said bottom members to limit separation of the bottom members when the device is used as a seat, the legs of said frames are pivotally interconnected by a pin extending through each pair of legs, and including, a pair of shoulder straps connected to the top member of said first frame which top member lies adjacent the user\s back, each strap being connected to the lower leg of said first frame below said pivot pin, including a pack bag depending from said seat between and below the top member both of said frames when said device is used as a seat whereby said seat is the top of said pack bag, said first frame being wider than said second frame and fitting outside said second frame, and including, a separate backrest frame connected to the upper portions of the legs of said first frame, said backrest frame being in the general shape of an inverted U with the lower end of each backrest leg being connected to the upper portions of said first frame and being bent so the backrest frame is generally vertical when the first and second frames are opened to form a seat.