Tourniquet with rotatable buckle assembly
The present invention relates generally to first aid articles and more specifically tourniquets suitable for one handed application. One embodiment of the invention is directed to a tourniquet having a base defining first and second ends. A constricting band is attached to and extends from the first end of the base. A windlass handle is engaged with the constricting band. The constricting band is threaded through a self cinching stepped buckle. A buckle connector includes a hook member that engages the stepped buckle and is partly held in place through urging against a loop of the constriction band.
1. A tourniquet comprising:
a base having first and second ends;
a constricting band attached to and extending from the first end of said base;
a windlass handle engaged with said constricting band;
a tourniquet buckle assembly comprising:
a substantially rectangular stepped buckle frame including a frame member and a step member,
a self-cinching sliding arm transversely extending from a first side of said substantially rectangular stepped buckle frame to a second opposing side of said substantially rectangular stepped buckle frame, said sliding arm being configured to slide along the buckle frame;
a buckle connector, including a hook member configured to engage said stepped buckle frame and a strap channel base member, said strap channel base member integrally formed with said hook member and said strap channel base member including a central aperture; and
a loop threaded through the central aperture of said strap channel base member and disposed in a trough of said hook member wherein said step member is adjustably secured in the trough of said hook member and maintained in its engaged position by contacting at least one of said loop and an inner surface of said hook member.
2. The tourniquet of claim 1 , wherein said buckle frame has a cylindrical cross section.
3. The tourniquet of any of claim 2 , wherein said self-cinching sliding arm forms a tongue and groove type engagement with said buckle frame.
4. The tourniquet of claim 3 , wherein said hook is pivotally attached to said loop.
5. The tourniquet of claim 3 , wherein said loop is a substantially resilient textile material.
6. The tourniquet of claim 3 , wherein said hook and said loop are configured to form a friction fit with said buckle frame.
7. The tourniquet of claim 3 , wherein said buckle frame is capable of transverse rotation up to 45 degrees when engaged with said hook member.
8. The tourniquet of claim 7 , wherein said buckle frame is capable of longitudinal rotation up to 180 degrees when engaged with said quick connect and release hook.
9. The tourniquet of claim 8 , wherein said step member of said buckle frame has a length that is slightly greater than a width of said hook member.
10. The tourniquet of claim 8 , wherein said hook member has a width that is about half of the lengthwise dimension of a base of said frame member.
11. The tourniquet of claim 3 , wherein said hook is pivotally attached to said loop.
12. The tourniquet of claim 11 , wherein said loop is a substantially resilient textile material.
13. The tourniquet of claim 1 , wherein said buckle frame is capable of transverse rotation up to 45 degrees when engaged with said hook member.
14. The tourniquet of claim 13 , wherein said buckle frame is capable of longitudinal rotation up to 180 degrees when engaged with said hook member.