Patent ID: 8820587

Claim:
A connector that is disposed on a container in which liquid is stored to draw out the liquid, comprising: a connecting unit having a threaded portion that is screwed onto a container-side threaded portion formed at the container; a main body coupled so as to have a common central axis with the connecting unit; and a siphon tube that is secured to the main body and that extends to a bottom surface of the container, wherein the connecting unit and the main body are connected so as to be capable of relatively rotating about the central axis, such that a connecting-unit projection of the connecting unit engages with a main-body projection of the main body, the main body comprises a guard portion that protrudes radially outward from an outer circumferential surface thereof, the container side threaded portion comprises a step portion that protrudes radially inwardly from an inner circumferential surface thereof, toward the main body, a sealing member is disposed between a surface of the guard portion and a surface of the step portion that face each other, the connecting unit comprises the connecting-unit projection that extends radially inward from an inner surface toward the central axis, the main body comprises the main-body projection that extends outwardly from an outer surface away from the central axis, the main body comprises a cylindrical outer portion connected to a cylindrical, inner plug portion at a bottom thereof, and the siphon tube connects to and extends from the bottom of the main body, an inner diameter of the connecting-unit projection is smaller than an outer diameter of the main-body projection and the main-body projection is received in a groove defined in the connecting unit above the connecting-unit projection, the inner diameter of the connecting-unit projection is smaller than an inner diameter of the step portion, and at least a tip portion of the siphon tube is curved to conform to the bottom surface of the container and to be disposed in the deepest region of the bottom surface.