The tightening device comprises includes a belt (10) having a first and a second end (10A, 10B) and a first and a second tightening lug (14A, 14B) carried by the belt which are formed respectively in a first and a second band portion (12A, 12B) respectively fastened to the outer face of the belt (10) in the vicinity of its first and its second end (10A, 10B). At least the first band portion (12A) is fastened to the belt (10) through at least a first fastening area (18A) formed on a boss (18A) of the first band portion (12A) protruding inwardly and/or a boss of the belt protruding outwardly.

The tightening device comprises includes a belt (10) having a first and a second end (10A, 10B) and a first and a second tightening lug (14A, 14B) carried by the belt which are formed respectively in a first and a second band portion (12A, 12B) respectively fastened to the outer face of the belt (10) in the vicinity of its first and its second end (10A, 10B). At least the first band portion (12A) is fastened to the belt (10) through at least a first fastening area (18A) formed on a boss (18A) of the first band portion (12A) protruding inwardly and/or a boss of the belt protruding outwardly.

A hose clamp may include a body portion having an annular shape which is open at one portion and surrounding an external surface of a hose and an external surface of an object to be fastened, a stationary portion coupled to an external surface of one end portion of the body portion, a movable portion coupled to an external surface of an opposite end portion of the body portion, and a fastening portion coupled to the stationary portion to be movable along axial directions of the body portion. The fastening portion moves along one of the axial directions of the body portion and presses the movable portion in a first circumferential direction of the body portion such that the one end portion and the opposite end portion of the body portion move toward each other and the body portion inwardly presses and fastens the hose and the object.

A clamp locator includes: a body having an attachment portion, which is attached to a band of a hose clamp; a head portion extending from the body; an end portion extending angularly from the head portion; a clip portion bendably connected to the end portion; and an engaging portion extending angularly from the clip portion and having a plurality of teeth. The attachment portion has at least one projection, which is meltable.

A clamp locator includes: a body having an attachment portion, which is attached to a band of a hose clamp; a head portion extending from the body; an end portion extending angularly from the head portion; a clip portion bendably connected to the end portion; and an engaging portion extending angularly from the clip portion and having a plurality of teeth. The attachment portion has at least one projection, which is meltable.

A hose clamp, for clamping a pneumatic seed delivery hose within a slotted receiver tube of an agricultural seed boot, including a clamping band with thread elements for cooperation with a bolt within a fastener housing at one end of the clamping band to be clamped circumferentially about the hose within the receiver tube. A set of claws are spaced apart from one another along opposing sides of the fastener housing for penetration into the pneumatic seed delivery hose when clamping the hose within the receiver tube.

A hose clamp, for clamping a pneumatic seed delivery hose within a slotted receiver tube of an agricultural seed boot, including a clamping band with thread elements for cooperation with a bolt within a fastener housing at one end of the clamping band to be clamped circumferentially about the hose within the receiver tube. A set of claws are spaced apart from one another along opposing sides of the fastener housing for penetration into the pneumatic seed delivery hose when clamping the hose within the receiver tube.

A clamp element, in particular a band clamp, has a first end portion and a second end portion which are arranged at a distance with respect to one another. A first element engages on the first end portion and a second element engages on the second end portion. The elements are or can be brought into engagement with one another by an engagement portion, and the engagement portion is formed between the end portions.

A hose clamp system is disclosed. The system includes a hose clamp and a retainer configured to attach the clamp to a hose substrate such that a desired radial, axial and circumferential position relative to the substrate outer diameter and hose end is maintained. The hose clamp includes an annular band including a radial inner surface facing toward a central axis and a radial outer surface positioned opposite the radial inner surface and a tension mechanism configured to tighten the annular band. The retainer includes an elongated body extending over the radial outer surface and a clip extending outward from the annular band that is configured to engage a hose substrate. The retainer is moveably coupled to the annular band such that the retainer is permitted to move circumferentially along the radial outer surface of the annular band.

The invention relates to a clamp comprising a clamp band having a clamping head with two clamping jaws, in each of which a guide-through opening is formed, through which a clamping element for clamping the clamp is guided, wherein at least one contact surface is formed on a respective edge of the guide-through openings, on which contact surface a support surface of the clamping element can at least partially be contacted. In order to achieve minimum inner tensions in the clip, the clamping jaws are arranged at an angle to one another, wherein at least one reinforcing bead is formed in the clamping jaws and one of the clamping jaws has an anti-rotation means for the clamping element.