Quick connector device
AssigneeMahle International GmbH
InventorsAndrzej Krupa, Krystian Klemt
Life of this patent
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Abstract
The production of a quick connection device including a metal journal that fits in a complementary manner into a connector is performed by a process including the following steps: a metal tube is extruded to form a blank of the journal extending longitudinally from a large end to a small end along a first cylindrical portion; from the first cylindrical portion, the blank narrows along a conical portion to a second cylindrical portion. The wall of the tubular blank has a thickness that is substantially constant in all three portions.
Claims9
A quick connection device for a connector, the quick connection device comprising:
- a journal sized to fit in a complementary manner into the connector journal including:
- a metal tube formed from a tubular blank of the journal extending longitudinally from a large end to a small end along a first cylindrical portion along a longitudinal axis, narrowing from the first cylindrical portion along a conical portion toward a second cylindrical portion, the tubular blank having a first inner diameter in the first cylindrical portion and a second inner diameter in the second cylindrical portion, the second inner diameter being smaller than the first inner diameter,
- two longitudinal tabs protruding from an exterior surface of the first cylindrical portion, the tabs being diametrically opposite from each other and part of an anti-rotation device that is configured to prevent the journal from turning;
- and
- two transverse cuts through the wall of the first cylindrical portion at the first inner diameter, the cuts forming open apertures separated by the two longitudinal tabs, and
- a tubular component in the first cylindrical portion,
- wherein the transverse cuts of the first cylindrical portion accommodate a local protrusion of the tubular component.
A quick connection device for a connector, the quick connection device comprising:
- a journal sized to fit in a complementary manner into the connector, the journal including:
- a metal tube formed from a tubular blank of the journal extending longitudinally from a large end to a small end along a first cylindrical portion along a longitudinal axis, narrowing from the first cylindrical portion along a conical portion toward a second cylindrical portion, the tubular blank having a first inner diameter in the first cylindrical portion and a second inner diameter in the second cylindrical portion, the second inner diameter being smaller than the first inner diameter,
- two longitudinal tabs protruding from an exterior surface of the first cylindrical portion, the tabs being diametrically opposite from each other and part of an anti-rotation device that is configured to prevent the journal from turning in the connector;
- and
- two transverse cuts through the wall of the first cylindrical portion at the first inner diameter, the cuts forming open apertures separated by the two longitudinal tabs,
- wherein the conical portion includes a step connecting the first inner diameter with the second inner diameter, and
- a tubular component in the first cylindrical portion,
- wherein the transverse cuts of the first cylindrical portion accommodate a local protrusion of the tubular component and receive a clip for engaging with the connector.
A method for producing a quick connection by push-fitting in a complementary manner a journal, secured to a first tubular component, into a connector secured to a second tubular component, the method comprising the steps of:
- providing a journal having a tubular blank extending longitudinally from a large end to a small end along a first cylindrical portion along a longitudinal axis, narrowing from the first cylindrical portion along a conical portion toward a second cylindrical portion, the tubular blank having a wall of a thickness that is substantially constant in the first cylindrical portion, the conical portion and the second cylindrical portion, and having a first inner diameter in the first cylindrical portion and a second inner diameter in the second cylindrical portion, the second inner diameter being smaller than the first inner diameter, the first cylindrical portion of the journal having two longitudinal tabs protruding from an exterior surface of the first cylindrical portion, the tabs being diametrically opposite from each other and part of an anti-rotation device that is configured to prevent the journal from turning, the first portion of the journal also having two transverse cuts through the wall of the first cylindrical portion at the first inner diameter, the cuts forming open apertures separated by the two longitudinal tabs, the first cylindrical portion of the journal having an inside diameter matched to an outside diameter of the first tubular component and the first cylindrical portion having an outside diameter matched to an inside diameter of the connector;
- inserting the first tubular component into the first cylindrical portion so that the journal abuts an end of the first tubular component, the apertures being closed by the first tubular component;
- locally deforming the first tubular component and producing a protrusion to enter the transverse cuts;
- and
- fixing the journal at the end of the first tubular component.
Dependencies are inferred from the claim text.