Hybrid quick connector
View Patent ↗A quick connector coupling comprising a connector body having a retainer housing and a separate stem. The retainer housing defines a through bore extending axially rearward from a male member reception end. The retainer housing includes a generally cylindrical spacer portion. The stem defines a through bore extending axially rearward from a housing reception end. The stem includes a spacer housing portion overlying the spacer portion of the retainer housing. The spacer housing portion is crimped or roll grooved radially inward to secure the stem to the retainer housing.
1. A quick connector coupling for forming a severable connection in a fluid line comprising a connector body, said connector body comprising:
a retainer housing defining a though bore extending axially rearward from a male member reception end, said retainer housing including a spacer portion defining a continuous generally cylindrical locking surface, said spacer portion of said retainer housing further defining an annular depression adjacent said generally cylindrical locking surface;
a retainer in the retainer housing to secure a male member within said retainer housing; and
a separate stem secured to said retainer housing, said stem defining a through bore extending axially rearward from a housing reception end, said stem including a spacer housing portion having an interior cylindrical spacer housing surface overlying said generally cylindrical locking surface of said spacer portion of said retainer housing
said spacer housing portion having a crimped wall defining a radially inward indentation radially outward of said annular depression crimped into said annular depression said interior cylindrical spacer housing surface engaging said generally cylindrical locking surface of said spacer portion to secure said stem to said retainer housing;
wherein said continuous generally cylindrical locking surface of said spacer portion of said retainer housing includes a plurality of radially outward extending protrusions engaging said interior cylindrical spacer housing surface of said stem to create an interface fit between said protrusions and the interior cylindrical spacer housing surface to prevent said stem from rotating relative to said retainer housing.
2. The quick connector coupling as claimed in claim 1 wherein said spacer portion is located at an end of said retainer housing oppose said male member reception end.
3. The quick connector coupling as claimed in claim 1 further comprising a male member extending through said male member reception end of said retainer housing and into said bores of said retainer housing and said stem, said male member having a generally cylindrical sealing surface and an annular upset, said upset having a diameter greater than the diameter of said tubular surface.
4. The quick connector coupling as claimed in claim 3 further comprising an O-ring located radially between said male member and said stem.
5. The quick connector coupling as claimed in claim 4 wherein said O-ring is coaxial with said spacer portion of said retainer housing.
6. The quick connector coupling as claimed in claim 4 wherein said spacer portion of said retainer housing is located immediately axially forward of said O-ring.
7. The quick connector coupling as claimed in claim 4 further comprising a second O-ring located radially between said male member and said stem.
8. The quick connector coupling as claimed in claim 7 further comprising a spacer ring axially between said O-ring and said second O-ring.
9. The quick connector coupling as claimed in claim 1 wherein said retainer housing is formed of a material different than material forming said stem.
10. The quick connector coupling as claimed in claim 9 wherein said retainer housing is formed of an injection moldable material.
11. The quick connector coupling as claimed in claim 9 wherein said retainer housing is formed of a non-metallic material.
12. The quick connector coupling as claimed in claim 11 wherein said non-metallic material is a polymeric material.
13. The quick connector coupling as claimed in claim 9 wherein said retainer housing is formed of a metallic material.
14. The quick connector coupling as claimed in claim 13 wherein said metallic material has a thixotropic structure.
15. The quick connector coupling as claimed in claim 13 wherein said metallic material is a magnesium alloy.
16. The quick connector coupling as claimed in claim 1 wherein said stem is formed of a metallic material.
17. The quick connector coupling as claimed in claim 1 wherein said spacer housing portion of said stem defines an interior surface, said stem further includes a seal chamber portion and a tube end receptacle portion, said seal chamber portion defines an interior surface having a diameter smaller than diameter of said interior surface of said spacer housing portion, said tube end receptacle portion defines an interior surface having a diameter smaller than diameter of said inner surface of said seal chamber portion.
18. The quick connector coupling as claimed in claim 1 wherein said stem includes a radially outward extending barb.
19. The quick connector coupling as claimed in claim 1 wherein said stem includes threads.
20. The quick connector coupling as claimed in claim 19 wherein said threads extend radially outward.
21. The quick connector coupling as claimed in claim 1 wherein said stem is straight.
22. The quick connector coupling as claimed in claim 1 wherein said stem includes a bend between its ends.
23. The quick connector coupling as claimed in claim 22 wherein said bend is approximately ninety degrees.
24. The quick connector coupling as claimed in claim 22 wherein said bend is approximately forty-five degrees.