Clamping collar with clamping lug and clamping rod

Abstract

Disclosed is a clamping collar comprising a belt (12) bearing a first and a second clamping lug, the collar comprising a clamping rod (14) configured to be retained relative to the first clamping lug (20A) and the second clamping lug respectively by a first stop (30A) borne by the clamping rod and by a second stop. The first clamping lug (20A) has a first bore configured to be passed through by the clamping rod (14) such that the first stop (30A) is retained at the rear of the first bore. The first bore communicates with a first passage opening configured to be passed through by the first stop borne by the clamping rod.

Description

HOSE CLAMP WITH CLAMPING EAR AND CLAMPING ROD Description Technical Field

[0001] The present disclosure relates to the field of hose clamps. More specifically, the disclosure relates to a hose clamp comprising a belt having a geometric winding axis and carrying a first and a second clamping ear, the clamp comprising a clamping rod configured to be respectively retained relative to the first clamping ear and the second clamping ear by a first stop carried by the clamping rod and by a second stop, at least one of the first and second stops being movable along the clamping rod. Prior art

[0002] In this type of clamp, at least one of the lugs, for example the first lug, may have a bore configured to be traversed by the clamp rod such that the first stop is retained by a retaining surface at the rear of the first bore.

[0003] A clamp of this type is known, for example, from documents EP2686597 and EP3825594. In the examples in these documents, the clamping lugs each have a bore through which the clamping rod, which in this case is formed by a threaded rod, passes. However, the disclosure also relates to clamps in which only one of the lugs has a bore through which the clamping rod passes, while the other lug has another means for retaining the clamping rod, for example a cage in which a part of the clamping rod, for example a head of this trunnion-shaped screw, is retained. For example, one of the lugs may be shaped like those shown in document US 2270375. Statement of the invention

[0004] Conventionally, the installation of the clamping rod in the drilling of the first clamping ear requires that the rod be presented to this drilling by one of its ends, aligned with the drilling and threaded into the drilling by a movement in the direction of its length. This requires that the end presented to the drilling be free of any stop and requires that there be sufficient clearance around the collar to be able to present the end of the rod at the right angle to the drilling.

[0005] If the stop is a fixed element, such as a screw head, the clamping rod must be presented to the drilling by its end opposite its head. If the first stop is a removable type, such as a nut, the clamping rod can be presented to the drilling by its end normally provided with this stop, but the latter must then not be present on the clamping rod. Thus, either the rod must be delivered separated from this stop, or the rod is delivered with the first stop, but this stop must then be removed before putting the rod in place in the drilling. In both cases, once the rod is threaded into the drilling, the first stop must be put in place on the rod, which requires assembly (or even prior disassembly) of the stop. This results in a loss of time and risks losing the first stop when it is detached from the clamping rod.

[0006] The presentation aims to remedy at least in part the above-mentioned drawbacks.

[0007] Thus, the disclosure relates to a clamping collar comprising a belt having a geometric winding axis and carrying a first and a second clamping lug, the collar comprising a clamping rod configured to be retained relative to the first clamping lug and the second clamping lug respectively by a first stop carried by the clamping rod and by a second stop, at least one of the first and second stops being able to be moved along the clamping rod, the first lug having a first bore configured to be crossed by the clamping rod so that the first stop is retained by a first retaining surface at the rear of the first bore, the first bore communicating with a first passage opening, configured to be crossed by the first stop carried by the clamping rod.

[0008] Thus, to place the clamping rod in the first hole of the first ear, it is possible, while the first stop is present on the clamping rod, to pass through the clamping opening the assembly comprising the first stop and the portion of the clamping rod which carries it, until a portion of the clamping rod in which the first stop is not present, and which is located in front of this first stop, reaches the first hole. This is easily done by a rocking movement of the clamping rod in a plane perpendicular or substantially perpendicular to the axis geometric winding. The first stop may be a fixed element, for example a screw head, in which case it is the end of the clamping rod where the screw head is located which can thus be put in place behind the first drilling, which allows a choice of assembly which did not exist in the collars of the state of the art. The first stop may be an element movable relative to the clamping rod, such as a nut, in which case it can be pre-mounted in a waiting position on the clamping rod, remaining for example on a portion located near a free end of this rod, then this portion carrying the stop can be put in place behind the first drilling by passing through the passage opening, then the collar can be tightened by an appropriate movement of the stop. In particular, a captive nut can be used, from which the clamping rod cannot be extracted or at least cannot be easily extracted.

[0009] Optionally, the first passage opening is at least partly formed in the belt, at the rear of the first clamping ear, optionally at the base of the first retaining surface.

[0010] Optionally, in at least a portion of the first passage opening, the width of this opening is greater than the width of the first drilling, these widths being measured along the geometric axis.

[0011] Optionally, the first passage opening comprises a distal section remote from the first bore and a connecting section connecting the distal section to the first bore, the distal section having a width greater than that of the connecting section, these widths being measured along the geometric winding axis.

[0012] Optionally, the connecting section has guide edges capable of guiding the movement of the first stop towards the first retaining surface when tightening the collar.

[0013] Optionally, the first clamping ear has a cup for positioning the first stop against the first retaining surface.

[0014] Optionally, the first clamping ear has at least one wedging surface capable of cooperating with the first stop to wedge the latter in rotation.

[0015] Optionally, the first stop has at least one peripheral flat and the wedging surface includes a surface raised relative to the belt.

[0016] Optionally, the clamping rod is a threaded rod and either both stops include a nut, or one of the stops includes a screw head while the other stop includes a nut.

[0017] Optionally, the second ear has a second bore configured to be crossed by the clamping rod so that the second stop is retained by a second retaining surface at the rear of the second bore. In this case, it is possible to provide that the second bore communicates with a second passage opening, configured to be crossed by the second stop carried by the clamping rod. Thus, at the installer's discretion, it is possible to put the clamping rod in place in the two bores by tilting movements passing the rod carrying the stops into the passage openings until, for each bore, a portion of the rod in which the stop is not located and located in front of the stop, reaches the bore. It is also possible to choose to pre-thread the rod into any one of the bores, and to put it in place in the other bore by the aforementioned tilting movement.

[0018] Optionally, the clamping collar comprises a spring interposed between the first clamping ear and the first stop and / or a spring interposed between the second clamping ear and the second stop.

[0019] Optionally, the first ear has a reinforcement, this reinforcement optionally comprising a rim formed at the outer radial end of the first ear, optionally by folding.

[0020] Optionally, the belt carries an internal trim which is capable of at least partially covering the passage opening on the inner side, the trim optionally having a mask portion which is configured to mask the first passage opening on the inner side of the belt and to be able to be moved to free the first passage opening.

[0021] The above-mentioned characteristics and advantages, as well as others, will appear on reading the detailed description which follows, of examples of embodiments of the clamping collar, the subject of this presentation. This detailed description refers to the attached drawings. Brief description of the drawings The attached drawings are schematic and are intended primarily to illustrate the principles of the presentation.

[0022] [Fig. 1] Figure 1 is a perspective view of a clamp according to the present disclosure, in an untightened state.

[0023] [Fig. 2A] Figure 2A is a perspective view of this collar showing zone II of Figure 1, in which the first clamping ear is located, seen from the side outside the clamping collar.

[0024] [Fig. 2B] Figure 2B is a view of the same area as Figure 2A, taken along arrow IIB of Figure 2A and therefore showing the same area, seen from the inside of the clamp.

[0025] [Fig. 3] Figure 3 is a perspective view similar to that of Figure 2A, but showing only the belt and the first tightening ear.

[0026] [Fig. 4] Figure 4 is a view similar to Figure 1, but this time showing the collar in the tightened state.

[0027] [Fig. 5] Figure 5 is a general perspective view showing the installation of the clamping rod and the first stop in the first hole.

[0028] [Fig. 6] Figure 6 is an enlargement in zone VI of Figure 5, as the first stop is ready to be inserted into the first passage opening.

[0029] [Fig. 7] Figure 7 is a view similar to Figure 6 showing the next face of the assembly, while the first stop is placed by the first passage opening.

[0030] [Fig. 8] Figure 8 shows a part of a clamp according to an alternative embodiment, in the area of ​​the first and second clamping ears.

[0031] [Fig. 9] Figure 9 is a view similar to Figure 8 for an alternative embodiment.

[0032] [Fig. 10] Figure 10 shows an alternative embodiment of the first clamping ear. Description of the embodiments

[0033] In order to make the disclosure more concrete, an exemplary embodiment and variants are described in detail below, with reference to the attached drawings. It is recalled that the invention is not limited to this example and these variants.

[0034] Figure 1A shows a clamp 10 which comprises a belt 12 wound around a geometric winding axis A. Here, the belt is made in a single part, covering the entire circumference of the clamp. The belt may, however, be formed of belt portions, connected together or to a support. The axis A is defined as being that of the cylinder defined by the cylindrical contour of the belt or on which the cylindrical contour portions of the belt are substantially inscribed.

[0035] The ends 12A and 12B of the belt 12 carry clamping ears, respectively a first clamping ear 20A and a second clamping ear 20B.

[0036] For the purposes of this disclosure, the inward direction is the direction toward axis A. Thus, the inner face of the belt 12 is the one facing toward axis A. The outward direction is of course the opposite direction. With respect to an ear, the forward direction is the one in which it moves when tightening the belt. Thus, in the example shown, the front wall of one ear is the one facing toward the front wall of the other ear. Conversely, the rear wall of one ear is the one opposite its front wall and, therefore, opposite the other ear. With respect to the tightening rod and the first stop, the forward direction is the one which, when the tightening rod is in place relative to the ears, goes from the first stop toward the first ear; similarly, with respect to the second stop, the forward direction is the one which, when the tightening rod is in place relative to the ears, goes from the second stop toward the second ear.The axial direction is that defined by the A axis.

[0037] The collar comprises a fitting 13 which is carried by the belt and extends on the inside of the belt. This fitting, which may in particular be made of an elastomer-type material, serves to allow "non-injurious" contact with the object clamped by the belt. The belt itself, as well as its clamping ears, may be made of metal, for example austenitic steel. The belt is generally made in a single piece with the ears. If the belt is formed in several parts, the ears generally come in a single piece with the belt portions which carry them. This being the case, it is possible to provide added ears, by any suitable means, for example by welding or clinching.

[0038] The collar also includes a clamping rod 14 that is configured to be retained relative to the first clamping ear and the second clamping ear. In this case, each of the two clamping ears has a bore, which is passed through by the clamping rod. The clamping rod is held relative to the two ears, respectively by a first and a second stop. In this case, the clamping rod is a threaded rod, and the first stop is a nut 30A which is located at the rear of the first ear 20A and which, as can be seen by comparing Figures 1 and 4, can be screwed onto the clamping rod to tighten the collar. In this case, the second stop 30B is located at the rear of the second clamping ear 20B and, in the example shown, is formed by a screw head of the threaded rod 14 which then forms a screw. The clamping rod and the stops can be made of metal, in particular stainless steel.

[0039] In the example shown, the screw head 30B cooperates with the second clamping lug 20B by means of a spacer 40 which bears on the rear face of the second clamping lug 20B and a spring 42, in this case a helical spring, which is in this case arranged between the second stop 30B and the spacer 40. This spring, the stiffness of which is chosen according to the chosen application and the necessary clamping force, tends to permanently return the second stop 30B in a direction which moves it away from the second lug 20B. The tightening of the collar therefore tends to compress the spring 42. Thus, the spring 42 gives an elastic effect to the tightening, maintaining the intensity of the tightening despite possible variations in the diameter of the object clamped by the collar.

[0040] In the example shown, the nut forming the first stop 30A is locked in rotation relative to the first clamping lug 20A. Thus, it is by rotating the second stop formed by the screw head 30B that the collar can be tightened, the spacer 40 serving in particular to keep the head at a distance from the second clamping lug to facilitate its screwing without the tool grip being hindered by the belt.

[0041] On the portion of the clamping rod 14 located between the first and second ears 20A and 20B, there is a washer 43, formed for example by a circlip or an elastomer washer. For the clarity of the drawing, this washer is spaced from the second ear 20B, but it is generally located close to this second ear and makes it possible to maintain the clamping rod in the waiting position with possibly a slight compression of the spring.

[0042] In the example shown, the belt has an attachment loop 15 which, in this case, is formed by a U-shaped element which can be attached to the belt and fixed to a support of the collar, for example the chassis of a vehicle. For example, the object that the collar is intended to tighten may be an object intended to be carried on a vehicle, for example a hydrogen tank attached to the vehicle chassis by the clamp.

[0043] With reference to Figures 2A, 2B and 3, the first clamping ear 20A is now described in more detail.

[0044] In Figure 3, it can be seen that the first clamping ear 20A has, in its portion raised radially relative to the belt 12, a first drilling 22A which, as can be understood by comparing Figures 2A and 3, is crossed by the clamping rod 14 when the latter is fully mounted.

[0045] It can be seen in Figure 3 that this first hole 22A is bordered by a substantially radial surface 22'A which can be understood, considering for example Figures 2A and 2B, that it forms a first retaining surface which makes it possible to retain the first stop 30A at the rear of the first hole 22A. Indeed, the width 122 of the first hole 22A is less than the width 130A of the first stop, these widths being measured along the geometric axis A. It can also be seen in Figure 3 that the first hole 22A communicates with a first passage opening 24A of the first stop 30A.

[0046] The first passage opening 24A has dimensions such that it can be crossed by the first stop 30A carried by the clamping rod 14. In particular, it has at least one part 25A in its width 125 is greater than the width 122 of the first bore 22A. The width 125 is also greater than the width I30A of the first stop. Similarly, the length L25 of this part 25A is greater than the length L30 of the first stop, these lengths being measured according to the circumference of the collar, that is to say in this case, according to the length of the band in which the collar is formed. Thus, the first stop 30A can pass through this part 25A. The first passage opening 24A is in this case formed in the belt 12, at the rear of the first clamping ear.

[0047] In this case, the first passage opening 24A comprises a distal section 25A which is distant from the first bore 22A and a connecting section 26A which is located between the first bore 22A and the distal section 25A which thus connects it to the first bore 22A. The distal section forms the part 25A through which the first stop 30A can pass. Its width 125 which is greater than the width 126 of the connecting section 26A. In this case, the distal section 25A is formed in the belt, while the connecting section 26A extends partly in the belt and partly in the first ear 20A. understands that, when placing the clamping rod 14 carrying the first stop 30A at the rear of the first ear 20A, the first stop 30A passes through the distal section 25A, while the part of the clamping rod without the first stop passes through the distal section 26A. Of course, the width 126 is slightly greater than the diameter of the clamping rod. In this case, the width 126 is equal to the width 122.

[0048] The edges 26'A of the connecting section 26A form guide edges which make it possible to guide the movement of the first stop towards the first retaining surface 22'A when tightening the collar, that is to say when the first stop 30A approaches this retaining surface. Indeed, once it has passed through the distal section 25A to reach, from the inner side of the belt, to its outer side, the first stop 30A can slide on the guide edges 26'A until it comes into position at the rear of the first ear, against the first retaining surface 22'A.

[0049] Seen from the rear, the first lug 20A has a recess TJ which forms a cup for positioning the first stop against the first retaining surface 22'A. In this case, the longitudinal edges of the first clamping lug 20A, that is to say its edges oriented along the length of the strip forming the belt, transversely a winding axis A, are straightened to form cheeks 28 between which the first stop can be wedged in the direction of the length of the axis A. The cup TJ is delimited between these cheeks 28 and is formed by the recess obtained, at the rear of the first lug 20A, by the fact that this lug is straightened radially relative to the belt.

[0050] With regard to the cheeks 28, it is noted that, in the example shown, their facing surfaces 28' form wedging surfaces which cooperate with the first stop 30A to wedge the latter with respect to its rotation around the axis of the clamping rod 14. In this case, the first stop 30A has circumferential flats, for example a hexagonal nut, a hexagonal or four-sided screw head, the flats being placed against the wedging surfaces 28'. Being formed inside the cheeks 28, the wedging surfaces 28' are in this case raised relative to the belt.

[0051] It is understood that, once the first stop 30A carried by the clamping rod has been positioned at the rear of the first clamping ear 20A as shown in FIG. 1, the first stop 30A is wedged between the wedging surfaces which prevent it from rotating, and it is then sufficient to drive the clamping rod 14 in rotation by its head 30B to tighten the collar. We then arrive at the situation shown in FIG. 4.

[0052] The installation of the first stop 30A carried by the clamping rod 14 at the rear of the first ear 20A is clearly visible in Figures 5 to 7, in Figure 6, it can be seen that the first stop 30A, carried at the end of the clamping rod 14, is positioned on the inside of the belt 12 and is about to pass through the passage opening, the first stop 30A then being in register with the distal section 25A of the passage opening 24A.

[0053] In Figure 7, the first stop 30A is passing through the distal section 25A, while the clamping rod is passing through the connecting section 26A.

[0054] Obviously, the length L25 of the distal section 25A, measured along the length of the belt, is adapted to the corresponding dimension of the first stop carried by the clamping rod. Here, the first stop 30A is shown at the end of the clamping rod 14. It could be slightly spaced from this end, i.e. slightly moved towards the clamping head compared to what is shown in Figures 6 and 7, in which case the length of the distal section 25A would be adapted accordingly.

[0055] In the example just described, the clamping rod 14 is formed by a screw, the first and second stops being respectively formed by a nut and by the head of the screw. In the variant of FIG. 8, the clamping rod 114 is formed by a threaded stud, without a clamping head, and the first stop 130A as well as the second stop 130B are both formed by nuts that can be screwed onto the threaded rod 114. In this case, a spacer 40 is arranged between the second clamping lug 20B and the second stop 130B. The first stop 130A may be identical to the first stop 30A previously described and, like it, be wedged at the rear of the first lug 20A once it is put in place against the first retaining surface 22'A.Screwing the nut 130B onto the clamping rod 114 can firstly cause this nut to advance in the direction F indicated in FIG. 8, so as to bring the second clamping lug 20B closer to the first clamping lug 20A, until the nut 130B reaches the end of its travel, for example in an interrupted zone of the thread of the threaded rod 114. From this situation, the clamping rod 114 therefore becomes integral in rotation with the nut 130B if it continues in the direction of tightening this nut on this rod, so that, the nut 130A being wedged in rotation, the clamping rod 114, which then behaves like a screw whose head would be the nut 130B, comes to be screwed into the nut 130A, thus bringing the first clamping lug 20A closer to the second clamping lug 20B.

[0056] In the example shown in Figure 8, no spring is interposed between the clamping rod and the first stop or the second stop. It should however be understood that it is perfectly possible to arrange a spring similar to the spring 42 previously described between one of the stops and the corresponding ear, in particular between the second stop 130B and the spacer 40.

[0057] This is shown in Figure 9 for another embodiment variant.

[0058] In this variant, a clamping rod 214 similar to that of figures 1 to 7 is used, and therefore formed by a clamping screw having a head. In this case, it is this head which forms the first stop 230A, resting at the rear of the first lug 20A, while it is the second stop 230B which is formed by a nut arranged at the rear of the second clamping lug 20B. Figure 7 shows the passage opening 24A through which the part of the clamping screw 214 carrying its head 230A passes to position this head at the rear of the first clamping lug 20A. In this figure, the spring 42 of figure 1 is also present, but this time it is located between the second ear 20B and the nut which forms the second stop 230B, more precisely between the spacer 42 arranged immediately to the rear of the second ear 20B and the second stop 230B.

[0059] With regard to the spring 42, in the examples shown in Figures 1, 4, 5 and 9, this spring is arranged at the rear of the second lug 20B. However, a spring could be arranged on the other side, at the rear of the first lug 20A. If the length of this spring is short, it can be pre-mounted on the clamping rod, at the front of the first stop 230A, and configured so that the assembly formed by this first stop 230A and this spring passes through the passage opening 24A when the first stop is put in place at the rear of the first lug. However, a spring could be provided which is not pre-mounted on the clamping rod, but which is attached to the latter after the first stop is put in place at the rear of the first lug. For example, this could be a U-shaped leaf spring or similar, fitted like a clip on the clamping rod, between the first clamping ear and the first stop.It would be possible to use a single spring as shown, either at the rear of the first clamping ear or at the rear of the second clamping ear, or to use two springs of different stiffness so as to finely manage the capacity of the collar to follow the expansions of the object clamped by this collar, for example depending on temperature variations that this object would undergo.

[0060] As indicated previously, the collar shown has a trim 13 located on the inner side of the belt 12. This trim may be removable, for example having flaps 13' and 13" (see figure 2A) under which channels are formed into which the longitudinal edges of the belt are inserted. The trim 13 may end in the area where the ears join the belt. On the contrary, as in the example shown, it may also have a flap B13B which extends under the second tightening ear 20B and / or a flap B13A which extends under the first tightening ear 20A. These flaps form extensions of the trim, which are devoid of the flaps 13' and 13". The flap B13A forms a mask portion which, in the rest state, can mask the passage opening 22A on the inner side of the belt 12.In this case, since the lining can be flexible, it is possible, without dismantling the lining, to bend this flap by bringing it back towards the axis A, so as to clear the passage opening. It is also possible, as in the example shown in Figures 5 to 7, to put the first stop 30A in place at the rear of the first clamping ear 20A while the lining 13 is not in place.

[0061] Furthermore, one of the clamping lugs, in particular the first clamping lug, may have a reinforcement. This is shown in Figure 10 for the first clamping lug 320A for which, in this case, this reinforcement is formed by a rim 321A formed at the outer radial end of this first lug, in this case by being folded. In this case, this rim is folded towards the front of the lug, but it could obviously be folded towards the rear of this lug.

[0062] In what has just been described, only one passage opening is provided, this for the first clamping ear, so as to allow the first stop carried by the clamping rod to be put in place at the rear of this first ear. It could of course be conceived that the conformation is identical for the second clamping ear, with a second passage opening located at the rear of this second ear to also allow, at the user's choice, the passage of the second stop carried by the clamping rod at the rear of this second ear.

[0063] Although the present invention has been described with reference to specific exemplary embodiments, it is obvious that modifications and changes may be made to these examples without departing from the general scope of the invention as defined by the claims. In particular, individual features of the various illustrated / mentioned embodiments may be combined in additional embodiments. Therefore, the description and drawings should be considered in an illustrative rather than restrictive sense.

[0064] It is also obvious that all the characteristics described with reference to a method are transposable, alone or in combination, to a device, and conversely, all the characteristics described with reference to a device are transposable, alone or in combination, to a method.

Claims

Claims

1. A clamp (10) comprising a belt (12) having a geometric winding axis (A) and carrying a first and a second clamping ear (20A, 320A; 20B), the clamp comprising a clamping rod (14, 114) configured to be retained relative to the first clamping ear (20A, 320A) and the second clamping ear (20B) respectively by a first stop (30A, 130A, 230A) carried by the clamping rod and by a second stop (30B, 130B, 230B), at least one of the first and second stops being movable along the clamping rod, the first ear having a first bore (22A) configured to be traversed by the clamping rod such that the first stop is retained by a first retaining surface (22'A) at the rear of the first bore, the first bore communicating with a first passage opening (24A), configured to be crossed by the first stop carried by the clamping rod.

2. A clamp according to claim 1, wherein the first passage opening (24A) is at least partly formed in the belt (12), at the rear of the first clamping ear (20A, 320A), optionally at the base of the first retaining surface (22'A).

3. A clamp according to claim 2, wherein, in at least one portion (25A) of the first passage opening (24A), the width (125) of this opening is greater than the width (122) of the first bore (22A), these widths being measured along the geometric axis.

4. A clamp according to claim 3, wherein the first passage opening (24A) comprises a distal section (25A) remote from the first bore (22A) and a connecting section (26A) connecting the distal section to the first bore (22A), the distal section (25A) having a width (125) greater than that (126) of the connecting section (26A), these widths being measured along the geometric winding axis and in which, optionally, the connecting section (26A) has guide edges (26'A) capable of guiding the movement of the first stop (30A) towards the first retaining surface (22'A) when tightening the clamp.

5. A clamp according to any one of claims 1 to 4, wherein the first clamping lug (20A, 320A) has a cup (27) of positioning the first stop (30A, 130A, 230A) against the first retaining surface (22'A).

6. A clamp according to any one of claims 1 to 5, wherein the first clamping lug (20A, 320A) has at least one wedging surface (28') capable of cooperating with the first stop (30A, 130A, 230A) to wedge the latter in rotation and wherein, optionally, the first stop has at least one peripheral flat and the wedging surface comprises a surface raised relative to the belt (12).

7. A clamp according to any one of claims 1 to 6, wherein the clamp rod (14) is a threaded rod and wherein both stops comprise a nut (130A, 130B), or one of the stops comprises a screw head (30B, 230A) while the other stop comprises a nut (30A, 230B).

8. A clamp according to any one of claims 1 to 7, wherein the second ear (20B) has a second bore configured to be traversed by the clamp rod (14) such that the second stop is retained by a second retaining surface to the rear of the second bore.

9. A clamp according to any one of claims 1 to 8, comprising a spring (42) interposed between the first clamping lug (20A, 320A) and the first stop and / or a spring interposed between the second clamping lug (20B) and the second stop.

10. A clamp according to any one of claims 1 to 9, wherein the first ear (320A) has a reinforcement, this reinforcement optionally comprising a rim (321A) formed at the outer radial end of the first ear, optionally by folding.

11. A clamp according to any one of claims 1 to 10, wherein the belt 12 carries an internal lining (13) which is capable of at least partially covering the passage opening (24A) on the inner side, the lining optionally having a mask portion (B30A) which is configured to mask the first passage opening (24A) on the inner side of the belt (12) and to be able to be moved to release the first passage opening, i

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