US 5,640,725 AGranted

Sleeping bag

AssigneeHisato Kawahira

InventorsShozo Ando, Hisato Kawahira

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Abstract

A sleeping bag is provided which is free from the problems of the bag body slipping off an air mattress laid therebeneath, the air pillow slipping off the bag body, etc. so that there is no fear of comfortable sleep being disturbed. The bag body 1 is composed of a mattress portion 1a and a coverlet portion 1b. The mattress portion 1a and the coverlet potion 1b are joined to each other so that the coverlet potion 1b is folded over the mattress 1a. The insides of the mattress portion 1a and the coverlet portion 1b are stuffed with cotton or feather paddings having the adiabatic property. The other sides of the respective mattress portion and the coverlet portion as well as the foot ends thereof are provided with slide fasteners 1c continuously therealong so that a generally envelope shaped structure is formed. The air mattress 2 is inserted through the air mattress inlet 1d formed along the foot end of the mattress portion 12a into the inside of the mattress portion 1a as shown by arrow mark 2'The head end side of the mattress portion 1a is opened with air pillow inlet 1f which allows insertion of the air pillows 3 into the head portion of the mattress portion 1a.

Claims9

Dependent claims

In a sleeping bag (1) of the type having an outer cover, a mattress portion (1a), and a coverlet portion (1b), the mattress portion and the coverlet portion being stuffed with fibrous insulation (1a', 1b'),

the mattress portion and the coverlet portion being joined along respective first sides thereof,
slide fastener means (1c) for joining the mattress portion and the coverlet portion along respective second sides thereof to close the bag;
wherein the mattress portion comprises:
an air mattress first space (1a2) disposed in a body area of the mattress portion between the outer cover and the fibrous insulation,
the first space including a first closable opening (1d);
and
an air mattress second space (1a3) disposed in a head area of the mattress portion between the outer cover and the fibrous insulation,
the second space including a second closable opening (1f);
and
a body air mattress (2) removably held in the first space by the first closable opening and an air mattress pillow (3) removably held in the second space by the second closable opening;
wherein the mattress portion comprises:
a single first air inlet hole (1e) adjacent a foot end of the bag and a single second air inlet hole (1g) adjacent a head end of the bag;
a single first air inlet (2a) of the body air mattress protruding through the first air inlet hole;
and
a single second air inlet (3a) of the air mattress pillow protruding through the second air inlet hole;
and wherein the first closable opening runs transversely to a length of the bag and is located at foot end of the bag, and
the second closable opening runs longitudinally to the length of the bag and is located at a head end of the bag.

14 more elements

Dependencies are inferred from the claim text.