Hose clamp

Claim 1

A hose clamp (1) having a spring-loaded clamping body (2) for encircling and end of a hose in a generally circular manner and overlapping clamping ends (6, 7) bent radially outward from the clamping body (2), wherein in the released state a pre-determined inner diameter exists defining a clamping state, and the clamping body (2) can be spread to a considerably larger diameter against its inherent spring force by means of a spreading tool acting on the clamping ends (6, 7) to create a spread-open state, wherein the clamping ends (6, 7) are locked against each other in the spread-open state of the clamping body (2) and can be unlocked from each other for clamping of the hose end, wherein--seen in a sectional view along the axis of the clamping body (2)--one clamping end (6) is formed in the shape of an U with spaced legs and with the bottom of the U in a radially outward position, the other clamping end (7) being in the form of a projection and being disposed between the legs of the U of said one clamping end (6), the free end of the projection in radial direction being approximately aligned with the bottom of the U of said one clamping end (6), wherein the clamping end (6) in the form an U has a stop bar (10) extending towards the other clamping end (7) generally tangentially or in the form of a peripheral arch in respect to the clamping body (2), wherein, to define said stop bar (10), said clamping end (6) is bent away at a first bending location from the clamping body (2) in a generally radial direction and is bent back at a second bending location which is at a distance from the first bending location, wherein a locking recess (8) is disposed in the stop bar (10) and wherein the end of the other clamping end (7) is formed as a locking projection (9) entering the locking recess (8) in the stop bar (10) radially from the inside for locking.