Claims
- 1. A hose clamp comprising:
- a generally circular band having a pair of end portions, and a generally radially outwardly extending tab at each of said end portions;
- each of said tabs having a screw receiving orifice;
- a screw having threads and extending through said orifices, having a head engaging one of said tabs, and being in threaded engagement with the other of said tabs;
- said one tab having a juncture with said band, and a reinforcing element across said juncture;
- said screw having a hardness greater than that of said band;
- said other tab being bendable toward said one tab in response to a screw tightening force sufficient to cause the angle of said screw to move toward said band and said screw threads to cut into the periphery of said band to form a type of worm drive engagement into the periphery of said band.
- 2. The hose clamp in claim 1 wherein said worm drive engagement is at said screw threads which protrude beyond said other tab.
- 3. The hose clamp in claim 1 wherein said reinforcing element is a rib.
- 4. The hose clamp in claim 3 wherein said rib is an outward offset in said one tab and said band.
- 5. The hose clamp in claim 1 wherein said reinforcing element is a stamped rib protruding outwardly of said band and leaving a dimple inwardly of said band.
- 6. The hose clamp in claim 1 wherein said screw threads are self-threading threads.
- 7. The hose clamp in claim 1 wherein said screw has a minor diameter, and said orifice in said other tab is sufficiently larger than said minor diameter that when said other tab bends toward said one tab, said screw threads cut new thread engagement within said other tab orifice.
- 8. The hose clamp in claim 1 wherein said screw is a sheet metal screw.
- 9. The hose clalmp in claim 1 wherein said band is of carbon steel and said screw is hardened.
- 10. The hose clamp in claim 1 wherein said screw has a surface hardness of at least about HRC 45.
- 11. The hose clamp in claim 10 wherein said band has a hardness of about HRB 55-65.
RELATED APPLICATION
This application is a continuation-in-part application of Ser. No. 09/131,990 filed Aug. 11, 1998, now U.S. Pat. No. 5,943,743, and entitled HOSE CLAMP.
US Referenced Citations (12)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
131990 |
Aug 1998 |
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