Abstract: The system comprises a clamping collar (10) suitable for being brought resiliently from its rest configuration in which its diameter is small to an expanded configuration. The system further comprises a support ring (20) suitable for being encircled by the collar, and an expander (40) suitable for co-operating with the ring firstly to hold the ring in an expanded configuration in which the collar (10) encircling the ring is also in its expanded configuration when the expander and the ring are in a first relative position, and secondly to enable the ring to contract and the clamping system to tighten under the resilient return force exerted by the collar encircling the ring when the expander and the ring are in a second relative position.

Abstract: A device includes a clamping collar having a belt that has two substantially cylindrical faces and that is suitable for being tightened around an article to be clamped; and at least one positioning including a securing plate that is disposed facing a first face of the belt while being retained relative to the belt; and a positioning portion that is suitable for positioning the device relative to the article to be clamped. When the collar is in its initial, non-tightened state, the securing plate is braced against the first face of the belt, wherein at the beginning of tightening, the plate deforming causes the bracing effect to cease, thereby allowing the belt and the plate to move relative to each other. The plate is suitable for being deformed while the collar is being tightened onto the article so as to present curvature that matches the curvature of the belt.

Abstract: A clamping collar comprising: a belt comprising a strip and two free ends, each of said ends being curved back to form a loop and each loop being defined by an outer belt portion and by an underlying inner belt portion; and a tightening system suitable for bringing said loops closer together and for tightening said belt; and in which each of ends of the belt is curved back towards the inside of the collar, said inner belt portion being extended beyond the loop, under said strip, and said outer belt portion presenting a tightening wall with which the tightening system comes into engagement.

Abstract: A clamping collar comprising: a belt having two free ends, at least one of said free ends being curved back to form a loop, said loop being defined by an outer belt portion and by an underlying inner belt portion; and a tightening system suitable for co-operating with said loop so as to tighten said belt; in which clamping collar said outer belt portion presents a pushed-in portion, set back relative to the outer outline of the loop, which pushed-in portion defines a tightening wall with which the tightening system comes into engagement, and is flanked on either side by respective ones of two edge segments of the outer belt portion.

Abstract: A clamping device comprising: a collar (10) comprising: a belt (12) suitable for being disposed around one or more articles to be clamped, and at least two lugs (14, 16) that are upstanding relative to said belt towards the outside thereof; and a tightening system (18, 19) suitable for co-operating with the two lugs so as to move them closer together; in which device at least one of the two lugs has a connection portion via which it is connected to the belt (26), which connection portion is upstanding relative to said belt, and a tightening wall (30) folded back towards the belt, the tightening system coming into engagement with said tightening wall during tightening of the collar; wherein, on its outside face, the belt (12) has at least one projecting portion (40) situated between the connection portion and the tightening wall, the tightening wall (30) coming into abutment against said projecting portion (40) while the collar is being tightened.

Abstract: The clamping collar comprises a belt that co-operates with tightening means and that is made up of two belt portions interconnected at their connection ends. Each of these connection ends has a joggle between an end segment and a coupling segment. The joggle is provided with a slot that extends transversely to a step. The connection ends are thus interlocked, the step of each connection end being disposed in the slot of the other end and the coupling segment of each of the ends being disposed against the end segment of the other end, so that the retaining surfaces belonging to respective ones of the two ends co-operate with each other.

Abstract: The collar is made from a metal strip formed into a loop, and has a fastening stud and an ear that project radially. The ear is provided with an aperture into which a free end portion of the stud can be inserted for the purposes of fastening and of tightening the collar. The collar further has engagement surfaces for engaging with a tightening tool, which surfaces project radially and are situated respectively behind the ear and behind the stud. The stud and the engagement surface that is situated behind the stud are formed in a common projection and have side cheeks that are raised relative to the plane of the strip, and that are common to them. The ear is also formed by a projection.

Abstract: The coupling (10) comprises a body (16) suitable for being fitted onto a tube (12) in leaktight manner, and a locking clip (22) that is elastically deformable between a locking configuration in which at least one locking zone (24A, 24B) of the clip can catch on a catch surface (14) of the tube and an unlocking configuration. The clip (22) is disposed over the wall of the body (16), which wall is provided with at least one transverse slot (30A, 30B) through which the locking zone (24A, 24B) projects into the body when the clip is in the locking configuration, and with at least one setback (32A, 32B; 36A, 36B) provided at the end of the slot, a portion of the bottom of said setback forming an unlocking ramp (34A, 34B; 38A, 38B) on which an unlocking zone (35A, 35B; 37A, 37B) can slide in order to cause the clip to go from its locking configuration to its unlocking configuration.

Abstract: A clamping collar comprising an open ring (10), each end of which carries a bearing tab (10A, 10B), and tightening means comprising a tightening bolt (14) whose shank passes through the bores (12A, 12B) in the bearing tabs, a nut (16), and a spacer (18). In order to tighten the collar, the head of the bolt or the nut are driven in rotation. The spacer is disposed between the element that is driven in rotation and the corresponding bearing tab. The spacer (18) is formed by a rolled-up blank disposed around the shank (14B) of the bolt (14).

Abstract: The device comprises: a clamping collar having a belt that has two substantially cylindrical faces and that is suitable for being tightened around an article to be clamped; and at least one positioning piece comprising: a securing plate that is disposed facing a first face of the belt while being retained relative to said belt; and a positioning portion that is suitable for positioning the device relative to the article to be clamped. When the collar is in its initial, non-tightened state, the securing plate is braced against the first face of the belt, while the retaining whereby the plate is retained relative to the belt allows the belt and the plate to move relative to each other. The plate is suitable for being deformed while the collar is being tightened onto the article so as to present curvature that matches the curvature of the belt.

Abstract: Disclosed is a clamping device including a collar having at least one pair of projecting lugs and tightening means co-operating with said lugs. Each lug of a pair is equipped with reinforcement means suitable for opposing deformation of said lugs under the action of the tightening means. Each lug has a connection portion via which it is connected to a belt portion of the collar, which connection portion is upstanding relative to said belt portion, and a tightening wall, with which the tightening means come into engagement and which is folded back towards the belt portion. A space is formed between the connection portion and the tightening wall.

Abstract: A clamping system for connecting two tubes (20, 22) together in leaktight manner, the facing ends of the tubes having bearing surfaces (16, 18) that project relative to the cylindrical outside surfaces of said tubes. The system comprises a collar (10) and a washer (28). The collar has a band (12) suitable for co-operating with bearing surfaces via its inside periphery defining a setback, and a bolt (24) and a nut (26) arrangement for tightening the band (12). The washer is secured to the collar (10) by fixing tabs (32, 34, 36).

Abstract: The coupling (10) comprises a body (16) suitable for being fitted onto a tube (12) in leaktight manner, and a locking clip (22) that is elastically deformable between a locking configuration in which at least one locking zone (24A, 24B) of the clip can catch on a catch surface (14) of the tube and an unlocking configuration. The clip (22) is disposed over the wall of the body (16), which wall is provided with at least one transverse slot (30A, 30B) through which the locking zone (24A, 24B) projects into the body when the clip is in the locking configuration, and with at least one setback (32A, 32B; 36A, 36B) provided at the end of the slot, a portion of the bottom of said setback forming an unlocking ramp (34A, 34B; 38A, 38B) on which an unlocking zone (35A, 35B; 37A, 37B) can slide in order to cause the clip to go from its locking configuration to its unlocking configuration.

Abstract: A quick-connect coupling which includes a locking ring (20) disposed in an coupling body to co-operate with a catch surface on a tube fitted into the coupling. The ring is elastically deformable to go between an unlocking configuration and a locking configuration, in which at least one locking zone (30, 32) co-operates with the catch surface. To this end, the ring is provided with at least one unlocking bridge (22, 24) that protrudes through a slot in the body of the coupling. The ring is constituted by a strip that is plastically deformed to have at least the locking zone and the bridge. The ring forms a closed loop and has two ends (20A, 20B) which overlap, and which are suitable for sliding one over the other while the ring is being elastically deformed.

Abstract: A clamping collar having a hook (22) suitable for being clipped onto a lug (12) in the clamped state. The collar has a tongue (14) secured to the end that carries the hook (22). The lug (12) has a free edge (12A) which, when the collar is in the unclamped state, faces towards the hook (22), and the tongue carries at least one retaining member (26A, 26B) which, when the collar is in the unclamped state, lies in a cavity (28) provided under the lug (12) and co-operates with the free edge thereof. The tongue also has a guide embossed region (40) in alignment with the free edge of the lug to guide said lug during hooking and/or to form an abutment for the hook.

Abstract: A clamping collar comprising an open ring (10), each end of which carries a bearing tab (10A, 10B), and tightening means comprising a tightening bolt (14) whose shank passes through the bores (12A, 12B) in the bearing tabs, a nut (16), and a spacer (18). In order to tighten the collar, the head of the bolt or the nut are driven in rotation. The spacer is disposed between the element that is driven in rotation and the corresponding bearing tab. The spacer (18) is formed by a rolled-up blank disposed around the shank (14B) of the bolt (14).

Abstract: The collar is formed by rolling up a strip (10). First fastening means formed by a hook (14) projecting radially are located at a first end (10A) of the strip, while second fastening means comprising a retaining element (12) projecting radially and suitable for constituting with said hook to close the collar are located at the second end (10B) of the strip. The free edge (14A) of the hook is suitable for being engaged beneath a rim (13) formed to project radially outside relative to the collar in the vicinity of the retaining means (12) while the retaining means are engaged beneath the hook so as to close the collar. The hook is preferably formed by an embossed projection regardless of whether or not the rim (13) is present.

Abstract: To connect a connection element (12) to one end (10A, 10B) of the strip (10) from which the swaging ring is made, the connection element is placed against said end in such a manner that at least one anchor edge (14) of the connection element (12) is in register with said end, and pressure is exerted on the connection element (12) so as to displace the material of said end (10A, 10B) of the strip that lies beneath the connection element (12) while forming a fixing member (15) in said end that is suitable for co-operating with said anchor edge so as to hold together the connection element and said end of the strip.

Abstract: A system for connecting a tube (10) to a flexible hose (14) having an endpiece (12). One of the two parts constituted by the tube and the endpiece is suitable for fitting in the other of said two parts in a coupling situation, in which first and second locking means (26, 30) belonging respectively to the endpiece and to the tube co-operate for locking the connection. The endpiece has first and second rings (16, 18) disposed one after the other on a first of the inside and outside faces (15A) of the hose (14), and a tubular body (22) which is placed on the second of said faces (15B) . A sealing gap (20) is organized between the rings (16 and 18), and the gasket for sealing the connection is formed by a swelling (24) of hose material occupying said gap.

Abstract: A crimping ring comprises a rolled-up piece of metal strip (10). A first connection means formed at the first end (12) comprises a first setback overlap surface (16) together with at least one female member (18) recessed from said first surface. A second connection means formed at the second end (14) comprises a second setback overlap surface (20) together with a male member (22) formed to project from said second surface. On connection, the male member (22) is engaged in the female member (18) and is fixed thereto, while the overlap surfaces (16, 20) are disposed one against the other so as to define a connection zone of thickness that is substantially equal to the thickness of the main portion of the strip.