초록 ▼

An integral, molded rubber base for a backpack. This base is connected to the fabric body portion of the backpack. A tread or lug sole pattern is provided on the bottom and sides of the molded rubber base. The back surface of the base is contoured to curve around the user\s back, thus providing more

An integral, molded rubber base for a backpack. This base is connected to the fabric body portion of the backpack. A tread or lug sole pattern is provided on the bottom and sides of the molded rubber base. The back surface of the base is contoured to curve around the user\s back, thus providing more comfort than a traditional straight back.

대표청구항 ▼

A base for a backpack comprising: a bottom having a major axis and a minor axis, a front wall, a back wall, two opposed side walls connected between said front and back walls, and an open top to define an outside for said base and a hollow interior, said base being, substantially symmetrical with re

A base for a backpack comprising: a bottom having a major axis and a minor axis, a front wall, a back wall, two opposed side walls connected between said front and back walls, and an open top to define an outside for said base and a hollow interior, said base being, substantially symmetrical with respect to said minor axis; said bottom of said base being non-perforated and generally flat and connecting up to said front, back and side walls to form a single, integral structure; said back wall of said base being laterally and vertically contoured to conform to the curvature of a user\s back; said bottom, front and side walls of said base having a tread pattern on said outside; and said back wall further comprising channels extending generally vertically on said outside of said base for air flow and ventilation between said back wall and a backpack user.