| 摘要 |
The present invention proposes a double-walled container that can stably hold a liquid reservoir formed under a spherical body that functions as a valve element. This double-walled container is characterized by the provision of the following: an outer-layer body (10) that forms the outer shell of the container; an inner-layer body (20) that is contained inside the outer-layer body (10), can deform so as to decrease in volume, and has a top opening (21) that connects to a containing space (S); an inside cap (30) comprising a spherical body (B), which serves as a valve element, disposed inside a tubular wall (31) that extends toward the containing space (S); and a pouring cap (40) that is provided with a pouring tube (41) that connects to the tubular wall (31) and is attached to the mouth (11) of the outer-layer body (10). This double-walled container is also characterized in that the tubular wall (31) is provided with the following: an angled wall (35) that decreases in diameter with decreasing distance from the containing space (S) and contacts the spherical body (B) along the entire circumference thereof; and a protruding wall (36) that protrudes from the angled wall (35) toward the containing space (S). This double-walled container is further characterized in that said protruding wall (36) is provided with a liquid-holding means (37A, 37B, d) that holds a liquid reservoir (M), for the contents of the double-walled container, formed under the spherical body (B). |
