A hose clamp includes a clamp body formed by bending a plate spring into an annular shape while two ends of the plate spring are caused to cross, grip tabs formed to be raised radially outward from both ends of the clamp body, respectively and an expanded-diameter state retainer formed integrally on the clamp body or the tabs and capable of retaining an expanded-diameter state of the clamp body and releasing the clamp body from the expanded-diameter state by relative movement of both tabs in an axial direction of the clamp body with a gripping operation applied to both tabs. The tabs have respective distal ends, one of which has a larger width than the other. The distal ends are bent circumferentially outward into bent portions spaced from each other. The bent portions are insertable into positioning recesses formed in opposite surfaces of a gripping tool, respectively.

A clamping clip, including a clamping band the two end portions of which overlap one another in a closed condition of the clamping clip forming an inner band portion and an outer band portion, the clamping band including a first tensioning hook arranged on the outer band portion, and a second tensioning hook arranged on the inner band portion, the second tensioning hook including an inclined surface facing the outer band portion as a ramp, wherein at least one of the first tensioning hook and the second tensioning hook includes a plurality of projections facing away from the other of the first tensioning hook and the second tensioning hook.

A clamping clip, including a clamping band the two end portions of which overlap one another in a closed condition of the clamping clip forming an inner band portion and an outer band portion, the clamping band including a first tensioning hook arranged on the outer band portion, and a second tensioning hook arranged on the inner band portion, the second tensioning hook including an inclined surface facing the outer band portion as a ramp, wherein at least one of the first tensioning hook and the second tensioning hook includes a plurality of projections facing away from the other of the first tensioning hook and the second tensioning hook.

The clamping clip described here includes a clamping band the two end portions of which overlap each other in the closed condition of the clamping clip. A tongue disposed on the overlapped inner band portion is received by a tongue channel provided on the overlapping outer band portion, the shape of the tongue channel being complementary to the shape of the tongue. The tongue has a root part in which the tongue width, measured in the axial direction of the clamping clip, decreases from the full clamping band width to a smaller value, and an end part adjoining the root part, in which the tongue width constantly has the smaller value.

A purpose is to render a gripping operation of grip tabs more stable. A hose clamp includes a clamp body formed by bending a plate spring into an annular shape while two ends of the plate spring are caused to cross each other on a circumferential plane and grip tabs formed to be raised radially outward from both ends of the clamp body, respectively. An expanded-diameter state of the clamp body is retained when a locking claw is locked by a catch. The clamp body is released from the expanded-diameter state when a gripping operation is further carried out in this state. The second grip tab has a distal end formed to be wider than a distal end of the first grip tab. The distal ends of the grip tabs are bent in respective directions in which the distal ends depart from each other with respect to a thicknesswise direction, thereby serving as bent portions for the gripping operation, respectively.

A fastening means, in particular for a bellows, comprises a male end segment and a female end segment complementary to the male end segment. The fastening means can be used to fasten bellows to joint housings and/or shafts. The fastening means has an inner undercut region in order to provide an improved closing behavior of the fastening means.

A purpose is to render a gripping operation of grip tabs more stable. A hose clamp includes a clamp body formed by bending a plate spring into an annular shape while two ends of the plate spring are caused to cross each other on a circumferential plane and grip tabs formed to be raised radially outward from both ends of the clamp body, respectively. An expanded-diameter state of the clamp body is retained when a locking claw is locked by a catch. The clamp body is released from the expanded-diameter state when a gripping operation is further carried out in this state. The second grip tab has a distal end formed to be wider than a distal end of the first grip tab. The distal ends of the grip tabs are bent in respective directions in which the distal ends depart from each other with respect to a thicknesswise direction, thereby serving as bent portions for the gripping operation, respectively.

A fastening means, in particular for a bellows, comprises a male end segment and a female end segment complementary to the male end segment. The fastening means can be used to fasten bellows to joint housings and/or shafts. The fastening means has an inner undercut region in order to provide an improved closing behavior of the fastening means.