Connecting pipe
OwnerAtsuo Miyajima, Koji Shimizuinventors
Life of this patent
Estimating the term…
Abstract
A rigid connecting pipe to be securely fixed in a rubber hose by press-fitting has a pipe body and an annular rib on a leading end portion of the pipe body. The annular rib has a generally saw-edged cross-section and is formed in an acute angled shape. The annular rib serves as a stopper relative to the rubber hose by biting in an inner surface of the rubber hose. The connecting pipe further has a tubular support portion on a leading end thereof beyond the annular rib. The support portion supports the rubber hose from an inner surface side thereof, on a leading end beyond the annular rib while being press-fitted in the rubber hose.
Claims12
A connecting pipe with rigidity to be securely fixed in a rubber hose by press-fitting, comprising:
- a pipe body,
- an annular rib provided at least on a leading end portion of the pipe body,
- a tubular support portion formed on a leading end of the pipe body, the tubular support portion being arranged on a leading end beyond the annular rib,
- wherein the annular rib has a generally saw-edged cross-section and is formed in an acute angled shape, the annular rib is provided with a guide surface on a leading and press-fitted end of the annular rib to guide the rubber hose during press-fitting, the annular rib serves as a stopper relative to the rubber hose by biting in an inner surface of the rubber hose, and
- wherein the support portion supports the rubber hose in a radially outer side from an inner surface side thereof, on a leading end beyond the annular rib while being press-fitted in the rubber hose.
A connecting pipe with rigidity to be securely fixed in a rubber hose by press-fitting, the rubber hose being a large diameter rubber hose having an inner diameter larger than 16 mm, the connecting pipe, comprising:
- a pipe body,
- an annular rib provided at least on a leading end portion of the pipe body,
- a tubular support portion formed on a leading end of the pipe body, the tubular support portion being arranged on a leading end beyond the annular rib,
- wherein the annular rib has a generally saw-edged cross-section and is formed in an acute angled shape, the annular rib is provided with a guide lo surface on a leading and press-fitted end of the annular rib to guide the rubber hose during press-fitting, the annular rib serves as a stopper relative to the rubber hose by biting in an inner surface of the rubber hose, and
- wherein the support portion supports the rubber hose in a radially outer side from an inner surface side thereof, on a leading end beyond the annular rib while being press-fitted in the rubber hose.
Dependencies are inferred from the claim text.