초록 ▼

A reagent vessel cap includes an elastic sealing member having radial slits from the center toward the outer periphery, the sealing member being arranged on the opening of a vessel body supported by a cap body, for shielding a reagent contained in the vessel from outside air; and a pressurizing memb

A reagent vessel cap includes an elastic sealing member having radial slits from the center toward the outer periphery, the sealing member being arranged on the opening of a vessel body supported by a cap body, for shielding a reagent contained in the vessel from outside air; and a pressurizing member attached to the cap body above the sealing member and retained in position by the biasing force of a built-in spring member, for opening the sealing member downward along the slits by the pressure from above and returning to position by relaxing of the pressure.

대표청구항 ▼

What is claimed is: 1. A reagent vessel cap, comprising: a sealing member made of an elastic body having radial slits from the center toward an outer periphery, is arranged on an opening of a vessel, and in a cap body, for shielding a reagent contained in the vessel from outside air; and a pressuri

What is claimed is: 1. A reagent vessel cap, comprising: a sealing member made of an elastic body having radial slits from the center toward an outer periphery, is arranged on an opening of a vessel, and in a cap body, for shielding a reagent contained in the vessel from outside air; and a pressurizing member attached to the cap above the sealing member comprising a through hole and retained in position by the biasing force of a spring member firmly fixed between the pressurizing member and a fixing member arranged on the sealing member, for expanding the radial slits of the sealing member downwardly to open the vessel by a pressure from above and returning to position by relaxing of the pressure. 2. A reagent vessel cap, comprising: a hollow-cylindrical cap body integrally molded of a female screw to be in engagement with a male screw formed around an outer periphery of an opening of a vessel body, a flanged engaging part projecting axially thereabove, and an engaging protrusion around an upper region of the outer periphery of the flanged engaging part; a plate-like elastic sealing member integrally molded and arranged in the cap body, comprising a plurality of slits extending from the center toward an outer periphery of the sealing member and an engaging part having an inverse L-shape in section around the outer periphery of the sealing member through a hinge; a fixing member including a hollow cylinder and an engaging part formed around a lower region of an outer periphery of the hollow cylinder, wherein a lower surface of the engaging part being arranged on the sealing member, and one end of a spring member is firmly fixed to an upper surface of the engaging part; and a pressurizing member integrally molded of: a substrate having a through hole, an outer cylinder provided around an outer periphery of the substrate as its inner periphery is in contact with the outer periphery of the cap body, an inner cylinder provided along the through hole as its outer periphery is in contact with an inner periphery of the fixing member, the outer cylinder and the inner cylinder being vertically downwardly arranged, and an engaging protrusion provided around the lower region of the inner periphery of the outer cylinder, the engaging protrusion of the outer cylinder being in engagement with the engaging protrusion of the cap body, wherein the other end of the spring member is firmly fixed between the outer cylinder and the inner cylinder of the pressurizing member, wherein the pressurizing member is positioned above the sealing member by the spring member, when the pressurizing member is pushed downward against a biasing force of the spring member, the pressurizing member is pushed downward with the cap body and the fixing member as guides, the end of the pressurizing member pushes the sealing member downward, so that the plurality of slits of the sealing member expand and open to communicate the content of the vessel with the exterior, and when the pressure to the pressurizing member is relaxed, the plurality of slits contract and the pressurizing member returns to position, so that the sealing member returns to its initial position by its elasticity, thereby shielding the content of the vessel from the exterior. 3. A reagent vessel cap according to claim 1 or 2, wherein the sealing member having a thickness, and made of an elastic plate having a reasonable thickness to expand the slits and return its initial position by an elastic property of itself, is divided into four equal parts by the slits radially extending from the center toward the outer periphery. 4. A reagent vessel cap according to claim 1 or 2, wherein the outer periphery of the pressurizing member further comprises a top surface, and the slits formed in the sealing member have a length extending from the center of the sealing member to the top surface of the pressurizing member. 5. A reagent vessel cap according to claim 2, wherein the cap body is constructed such that the flanged engaging part of the fixing member extends downward around the inner periphery of the opening of the vessel body forming an extending part, and to be brought into contact with the inner periphery of the opening of the vessel body to be retained to the vessel body by the extending part and the female screw. 6. A reagent vessel cap according to claim 2, wherein the fixing member comprises the hollow cylinder, the flanged engaging part around the lower periphery of the hollow cylinder, and the spring member whose one end is firmly fixed to the upper surface of the flanged engaging part of the fixing member are integrally molded of plastic. 7. A reagent vessel cap according to claim 2, wherein the pressurizing member has a thin part projecting from a top surface thereof and a mark for indicating the thin part, and by pushing the thin part, the engagement between the cap body and the outer cylinder is cancelled. 8. A method for shielding a reagent from outside air, comprising: arranging a sealing member having a fixing member, and made of an elastic plate with radial slits from the center toward an outer periphery in an opening of a vessel body containing a reagent to a first position; arranging a pressurizing member having a through hole above the sealing member in the first position by a biasing force of at least one spring member firmly fixed between the pressurizing member and the fixing member of the sealing member; pushing the pressurizing member from above to expand the radial slits of the sealing member downwardly to a second position, thereby opening the vessel body to collect the reagent; and relaxing the pressure from the second position to return the expanded radial slits of the sealing member to the first position by an elastic property of the sealing member, thereby contracting and bringing the radial slits into contact with each other to shield the reagent from outside air after the collection of the reagent.