IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0526642
(2006-09-26)
|
등록번호 |
US-7527064
(2009-07-01)
|
우선권정보 |
JP-2005-281435(2005-09-28); JP-2006-151624(2006-05-31) |
발명자
/ 주소 |
- Kito, Hiroaki
- Nishi, Hiroshi
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
13 |
초록
▼
The fuel cutoff valve comprises a valve support on the upper part of the float, and the seat member is mounted on the valve support. The valve support has the bending space that has an inner diameter larger than the outer diameter of the seal part. The seat member is formed from a rubber material,
The fuel cutoff valve comprises a valve support on the upper part of the float, and the seat member is mounted on the valve support. The valve support has the bending space that has an inner diameter larger than the outer diameter of the seal part. The seat member is formed from a rubber material, has a side wall formed in a cylindrical shape from the outer periphery of the seat part and a stopper on the side wall, forming the mounting space by being formed in an almost a rectangle shape cross section, and being supported on the valve support by fitting the valve support on the mounting space. The seat part is elastically deformed in the bending space direction when set on the seal part and closes the connection path.
대표청구항
▼
What is claimed is: 1. A fuel cutoff valve that is mounted on an upper part of a fuel tank to open and close a connection path that connects an inside of the fuel tank and with outside, the fuel cutoff valve comprising: a casing having (i) a valve chamber that communicates the inside of the fuel ta
What is claimed is: 1. A fuel cutoff valve that is mounted on an upper part of a fuel tank to open and close a connection path that connects an inside of the fuel tank and with outside, the fuel cutoff valve comprising: a casing having (i) a valve chamber that communicates the inside of the fuel tank and the connection path and (ii) a seal part that projects in a circular shape toward the valve chamber, the seal part being provided in the connection path; and a float mechanism having (i) a float that is stored within the valve chamber and that rises according to a fuel fluid level within the fuel tank, (ii) a valve support that is formed on an upper part of the float, and (iii) a seat member mounted on the valve support that opens and closes the connection path by seating on and separating from the seal part, wherein the seat member has (i) a seat part formed from a flexible material and includes a seat surface that seats on and separates from with the seal part and (ii) an elastic deforming part formed along an outer periphery of the seat surface, and (iii) a supported part that projects from an outer periphery of the seat part with a thicker wall than the elastic deforming part and that is mounted for the valve support, the valve support has a bending space with an inner diameter larger than an outer diameter of the seal part, the bending space being configured to be formed to allow elastic deformation of the elastic deforming part when the seat surface seats on the seal part, the valve support has a support projection part projecting from an upper part of the center of the float, and the bending space is formed at an axial center of the support projection part, and the support projection part comprises a support base projecting from the upper part of the center of the float, a disk extending in radial direction from an upper part of the support base, and a cylinder formed facing upward from an outer periphery of the disk, and the bending space is formed by an upper surface of the disk and an inner wall of the cylinder. 2. The fuel cutoff valve in accordance with claim 1, wherein the supported part comprises a side wall that is formed in a cylindrical shape from an outer periphery of the seat part and that covers an outer periphery wall of the valve support, and a stopper formed on a lower end of the side wall that stops pulling out from the valve support. 3. The fuel cutoff valve in accordance with claim 1, wherein the elastic deforming part is formed to have different thicknesses of the seat surface. 4. The fuel cutoff valve in accordance with claim 1, wherein the elastic deforming part is formed in accordion form connected to be elastically deformable with the seat surface and the supported part. 5. The fuel cutoff valve in accordance with claim 1, wherein the side wall of the supported part comprises a part formed to be thin-walled in an axial direction. 6. The fuel cutoff valve in accordance with claim 1, wherein the supported part comprises a slit formed in an axial direction at a side wall thereof. 7. A fuel cutoff valve according to claim 1, wherein the fuel cutoff valve further includes a restriction element that, in a state in which the seat member seats on the seal part, restricts the elastic deformation volume of the seat member. 8. The fuel cutoff valve in accordance with claim 7, wherein the restriction element comprises a projection that projects from an inner wall of the casing and is formed to surround an outer periphery of the seal part. 9. The fuel cutoff valve in accordance with claim 8, wherein the restriction element comprises a plurality of parts arranged in a circumferential direction to surround the center of the seal part. 10. The fuel cutoff valve in accordance with claim 7, wherein the float comprises a valve support at an upper part of the float, wherein the valve support includes a bending space having an inner diameter larger than an outer diameter of the seal part, the bending space being configured to allow elastic deformation of the elastic deforming part when the seat surface seats on the seal part, and the restriction element is formed such that the seat surface is not in contact with a bottom of the bending space. 11. The fuel cutoff valve in accordance with claim 7, wherein the restriction element is a projection formed around an outer periphery of the seat part, the projection being configured such that the elastic deformation volume of the elastic deforming part is restricted by having contact with the inner wall of the casing. 12. The fuel cutoff valve in accordance with claim 7, wherein the restriction element projects to surround the seat member on an upper part of the float.
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