초록 ▼

A sleeping bag device has a heat-retaining bag which defines an inner chamber for accommodating the user\s body and having a head opening serving as an entrance/exit. The device also has an elastic member or members which compress the warmth-retaining bag in such a manner as to reduce the cross-sect

A sleeping bag device has a heat-retaining bag which defines an inner chamber for accommodating the user\s body and having a head opening serving as an entrance/exit. The device also has an elastic member or members which compress the warmth-retaining bag in such a manner as to reduce the cross-sectional area of the inner chamber, thus allowing the bag to closely fit around the user\s body.

대표청구항 ▼

A sleeping bag device comprising: a warmth-retaining bag comprising an inner lining, an outer lining and a heat-insulating material filling a space defined by said inner and outer linings, said warmth-retaining bag defining an elongated inner chamber for accommodating a user\s body and a head openin

A sleeping bag device comprising: a warmth-retaining bag comprising an inner lining, an outer lining and a heat-insulating material filling a space defined by said inner and outer linings, said warmth-retaining bag defining an elongated inner chamber for accommodating a user\s body and a head opening adapted for a user to enter or leave said inner chamber; and a plurality of elastic threads fixed with a sewing thread onto either one of said inner and outer linings, said elastic threads disposed at a substantially constant pitch in a longitudinal direction of said warmth-retaining bag over the entire length of said warmth-retaining bag.