초록 ▼

An internal frame backpack (10) includes a pack (12) having an anterior side (14) that contacts a user's back, and left and right shoulder straps (10, 18) attached at an upper end to an upper portion (20) of the pack and at a lower end to left and right lower portions (44, 46) of the pack. The pack

An internal frame backpack (10) includes a pack (12) having an anterior side (14) that contacts a user's back, and left and right shoulder straps (10, 18) attached at an upper end to an upper portion (20) of the pack and at a lower end to left and right lower portions (44, 46) of the pack. The pack includes an internal frame formed from an elastomeric pad (24) integrated into the anterior side of the pack, and resilient left and right rods (26, 28) mounted within the pack and secured to the elastomeric pad. The resilient rods act as coil springs which support loads in the pack with a degree of flexibility that varies in response to the magnitude of the load.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follow:] [1.] A backpack for carrying a load on the back of a user, comprising:a pack defining an anterior side positionable against the back of the user;left and right shoulder straps, each conn

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follow:] [1.] A backpack for carrying a load on the back of a user, comprising:a pack defining an anterior side positionable against the back of the user;left and right shoulder straps, each connectable at a first end to an upper portion of the pack and at a second end to left and right lower portions of the pack, respectively; andan integral frame comprising:an elastomeric pad incorporated into the anterior side of the pack; andleft and right resilient elongate rods tiat are independent and laterally spaced at least at one end thereof secured to the anterior side of the pack adjacent the elastomeric pad, the left and right rods extending from the respective left and right lower portions of the pack to the upper portion of the pack, wherein each rod has a longitudinal axis which resiliently flexes along a three-dimensional path when the pack carries a load and is worn by the user at least a portion of each rod flexing indenywdently of the other rod.