Abstract: This invention relates to a clamp constituted by a metal band wound on itself, of which the ends are respectively provided with complementary hooking means comprising, in particular a hook adapted to pass over a lug during the tightening operation, the inner end of the band extending, when the clamp is in closed position, at least beyond the hook. At the base of the lug supporting the hook, there is provided at least one undulation of the band, the maximum distance between the inner face of the undulation and the outer face of the extension of the inner end of the band being at the most equal to the thickness of the band and preferably included between one third and one half of this thickness.

Abstract: A clamp fitting is disclosed, constituted by a metal band wound on itself, whose ends are respectively provided with complementary hooking means, comprising a hook capable of passing behind a shoulder or ear during the clamping operation. The clamp fitting presents at least one group of two undulations, each in the form of an open loop, projecting radially with respect to the outer periphery of the clamp fitting, the zone of join of at least one undulation to the clamp fitting being constituted by a portion of band of circular section, whose radius is at least equal to twice the thickness of the band and which extends over an arc of at least 90.degree. and preferably close to 150.degree..

Abstract: A self-tightening lamp formed from spring steel band material which exerts clamping forces by the inherent springiness of the band material. To minimize outwardly projecting parts with their injury danger and to obtain an inner clamping surface substantially devoid of any gaps or steps, the end of the outer band end portion is provided with an elongated slot adapted to receive the tongue-like overlapped inner band end portion. Temporary locking of the clamp is realized by a detent member in the tongue-like inner band end portion adapted to be lockingly engaged by a locking surface in the outer band portion. The elongated slot is thereby of such width as to accommodate the tongue-like inner band portion whereby the detent member is located in the elongated slot when the clamp is in its clamping position.

Abstract: An open clamp structure, especially an earless clamp structure with overlapping inner and outer clamping band portions adapted to be mechanically interconnected; the clamp structure can be tightened about the object to be fastened by the application of a tighening tool at tool-engaging surfaces in these band portions; the tool-engaging surfaces are thereby so constructed and arranged that over-torquing during tightening is precluded. Savings in band material can be realized by the particular arrangement of the mechanical connection of the inner and outer band portions which also permits an efficient preassembly.

Abstract: Both end sides of a ring band member in a hose band having both end sides opened are fixedly attached to a clamping ear member. Bevelling is provided at edge portions of a tongue and a tongue receiving portion is formed at both ends of the above band member so as to be thinner toward the outside. The hose is thereby prevented from forming creases during clamping.

Abstract: A hose clamp assembly comprises a belt form of a plate spring body which is in an annular form having opposite ends and is provided with a grooved notch in which an extending piece to be described just below is inserted in a free state to form the same circumferential plane; an extending piece which is integrally provided at one end of the plate spring body along its circumferential direction, bent at its extreme end outwardly along the diametrical direction of the plate spring body to form a stopper and includes a pair of projecting tongues extending outwardly and vertically with respect to its both widthwise sides, the tongues inclining at their extreme ends at the required angles with respect to the stopper; and a receiving piece provided at the extreme end of the other end of the plate spring body, the receiving piece being bent outwardly along the diametrical direction thereof and including a notch somewhat wider in width than the extending piece and a horizontal portion provided with locking grooves spa

Abstract: In a connection of two edges of areal parts which extend at least along one common section essentially parallel to one another, at least one retaining element is arranged at the one edge which form-lockingly engages from behind, as viewed in the edge direction, in a recess in the other edge. At least one projection arranged laterally offset at the one edge in relation to the retaining element in the direction of the engagement from behind, abuts form-lockingly at the part with the recess essentially in the edge direction. To reliably secure together the parts, laser beam welding is used along the common sections of at least one of the retaining element and of the projection.

Abstract: A hose clamp in which the band encircling the hose is formed on the outer segment with a step inwardly of the clamping element and with openings into which hooks of the inner segment engage. A free end of the inner segment terminates at a distance from the step which extends only over half the width of the band and any gap between the free end and the step and axially bridged by an extension of the free end of the inner segment which has a radially directed lug engaged in a longitudinal slit of the outer segment.

Abstract: A self-retightening screw-type clamp with predetermined adjusting range for a given clamp size, attained by a predetermined number of apertures provided in the inner band portion of a separate band part in conjunction with a sleeve member of predetermined length interposed between the retightening spring and a part-cylindrical tightening member. The full adjusting range of the screw member is made possible by deforming the threads near its free end. Additionally, to facilitate assembly, the inner band portion of the separate band part is provided with a tongue-like extension which is adapted to engage with a latching device formed in the clamping band so as to hold the tongue-like extension of the inner band portion of the separate clamping band part at least close to the outer surface of the clamping band.

Abstract: A U-shaped clip having leg parts disposed outwardly from a crown on either side of a central axis, the leg parts having a configuration for intermeshing with each other during a clinching operation. The crown, on the interior thereof, is provided with a locking rib which extends transversely of the crown, the locking rib providing a planar surface which maintains abutting or adjoining metal tapes in a rigid position to prevent longitudinal and transverse movements between the metal tapes.

Abstract: A clamp structure having a metal band body is mountable on a surface to be clamped. Small projections rising substantially vertically are formed on an inner lap portion of the metal band body. Receiving holes having an edge portion engageable with the projections are formed in an outer lap portion of the metal band body. A first tool receiving portion is formed on the outer lap portion of the body. A second tool receiving portion and a terminal holding portion are provided on an intermediate portion positioned in the longitudinal direction of the metal band body. The terminal holding portion has an opening for receiving the first end of the body when the projections are inserted into the receiving holes to fasten the metal band body. A temporary attaching means having a passage provided between the terminal holding portion and the projections temporarily attaches the metal band body by constraining the outer and inner portions to be engaged with each other when the metal band body is being fastened.

Abstract: An auxiliary spring structure for use with open clamps in which the auxiliary spring member is contained within a cage formed by the outer band portion whereby the free leg portions of the auxiliary spring member extend through slot-like openings in the cage to engage the latter from the outside so as to resist elastically forces seeking to enlarge the circumferential dimensions of the clamp. In another embodiment, the auxiliary spring structure is formed by one or preferably several interengaged leaf springs which are connected between the end area of the outer band portion and the clamping band near the beginning of the inner band portion. Any gaps resulting in the auxiliary spring structure are thereby covered by the full band width of the inner band portion. The auxiliary spring structure of this invention can be used with one-ear clamps, earless clamps and screw-type clamps.

Abstract: A hose clamp with an ear-like structure which is adapted to be selected strengthened to achieve desired holding ability and/or re-tightening forces, as needed. This is achieved in one embodiment by complementary ear-like structures in the overlapping inner and outer band portions with the free ends of the inner and outer band portions connected with the corresponding overlapping, respectively, overlapped band portion. In addition or in the alternative, the ear-like structure is strengthened by external and/or internal strengthening members made of spring steel with predetermined spring characteristics whereby in one particular realization, the strengthening member can be readily installed and disassembled from the ear-like structure by the insertion and removal of pin-like retaining members.

Abstract: A hose clamp is disclosed comprising a clamping band having open ends for lapping one end over the other end in a lapping direction and presenting a lapped portion and a lapping portion. The open ends of the band are mechanically interconnected by several outwardly extending hooks in the lapped portion. The hooks are operable to engage in corresponding apertures in the lapping portion. The clamp structure has an ear for tightening the clamping band about an object to be fastened, characterized in that at least one hook extends out of the plane in the lapping direction presenting a hook aperture and at least one corresponding aperture has a tab extending from an edge of the aperture in a direction opposite the lapping direction for abutting the hook, whereupon deformation of the ear the tab deforms towards the lapped portion forming an abutment surface for absorbing the circumferentially directed clamping forces and projects into the hook aperture for interlocking the lapped portion with the lapping portion.

Abstract: A clamp band has an inner end and an outer end. A first tool engaging portion to be engaged with one of paired clamping force application portions of a clamping tool, a first clamp portion and a projection adjacent to the first clamp portion are formed in sequence as viewed from a tip edge of the inner end. A second clamp portion to be engaged with the first clamp portion is formed near a tip edge of the outer end, and a second tool engaging portion to be engaged with the other clamping force application portion of the clamping tool is formed on the outer end at a position further from the tip edge. A distance between the first clamp portion and the projection and a distance between the second clamp portion and the tip edge of the second end are selected such that the tip edge of the second end is juxtaposed to an end edge of the projection when the first clamp portion is engaged with the second clamp portion.

Abstract: A self-compensating hose clamp made of a single piece of wire has a primary loop having a substantially circular configuration and of a sufficient dimension to engage a hose for clamping purposes. At least one intermediate loop is formed exteriorly of the primary loop to provide overall flexibility to the clamp for installation and removal purposes.

Abstract: A clamp structure with one or several plastically deformable ears whose holding ability is increased by an external strengthening member surrounding the plastically deformable ear in its non-deformed condition; the lateral portions of the strengthening member are thereby so constructed and shaped that an application of a force to the lateral members will cause the ear to be plastically deformed.

Abstract: A clamping band equipped with a clamping ear is capable of being reduced in diameter by deforming the clamping ear and of maintaining the reduced-diameter state by the action of a catch section designed to prevent the clamping band from expanding in the direction toward diameter enlargement. With such a structure, the clamping band is not caused to enlarge its diameter even under the action of any force exerted on the member to be clamped in the direction toward expansion, prevents the decrease in sealing ability, and maintains strong clamping force.

Abstract: A clamping system for clamping a member onto a cylindrically-shaped surface. The member to be clamped has a first annular groove provided in the region which is to be clamped and a second annular groove provided in the bottom of the first annular groove. A clamping band has a body portion received in the first annular groove, a tongue received in the second annular groove, hooks for connecting the opposite ends of the body portion to each other to lock the clamping band in the first and second annular grooves, and a plastically deformable ear to tighten the clamping band about the member. In a preferred embodiment, the tongue is offset from the body portion of the clamping band.

Abstract: The clamp comprises at least one metal circular strip enclosing a pipe and having two ends hooking into each other. One of the ends is provided with a double elbow 6, 7 first forming an outwardly pointing part 8 and then a rearwardly pointing part 9. The other strip end 14 extends over a bent-back part 9 and these two overlapping parts are provided with a mutual hook-up arrangement 10 and coinciding apertures 12, 17 to pass a tool bending the bent-back part 9 around the elbow 6 to tighten the clamp onto the pipe.

Abstract: For the connection of two edges of areal parts which extend at least along one common section essentially parallel to one another, at least one retaining element is arranged at the one edge which form-lockingly engages from behind, as viewed in the edge direction, in a recess in the other edge. At least one projection arranged laterally offset at the one edge in relation to the retaining element in the direction of the engagement from behind, abuts form-lockingly at the part with the recess essentially in the edge direction. For the connection of the terminal edges of open ends of a ring-shaped clamping band, analogously a retaining tongue is provided, preferably in the center of the one edge with lugs projecting on both sides from the tongue which form-lockingly engages from behind in an essentially congruent recess in the other edge also arranged essentially centrally.

Abstract: A clamp structure of the open type with mutually overlapping inner and outer band portions, in which two ears are provided disposed diametrically opposite one another and at least the outer band portion is provided with an additional opening on the side of its ear opposite the free end of the outer band portion to balance the clamp structure when installed on an object to be fastened thereby. For larger clamp sizes, the inner band portion may also be provided with an opening located on the side of the outwardly extending hooks of the mechanical interconnection opposite the free end of the inner band portion. The inner band portion may additionally be provided with an outwardly extending hook adapted to engage in the opening provided in the outer band portion so as to keep the two band portions axially aligned.

Abstract: A hose clamp includes an annular clamp body having a pair of opposite end parts intersecting each other and bent in a radially outward direction so as to effect radial expansion of the clamp body by mutual approximation of the end parts. One of the end parts has a lock depression formed therein. The other end part has a lock claw part formed thereon at a position capable of engagement with the lock depression. The one end part has an unlocking wall formed thereon for disengaging the lock claw part from the lock depression. The clamp body is retained in a radially expanded state by the engagement between the lock claw part and the lock depression and is allowed to contract by the disengagement between the lock depression and the lock claw part.

Abstract: A mechanical interlock for an open clamp structure which includes a clamping band having an outer band portion and an inner band portion, intended to overlap in the closed condition of the clamp structure. The inner band portion is provided in the area near its end at least with an outwardly extending combined guide and support hook whose inclined guide and support surface is formed by its rear edge facing away from the free end of the inner band portion; the rear edge forming the guide and support surface is thereby non-rectilinear, as viewed in the axial direction of the clamp structure, to facilitate assembly of the clamp structure and minimize down-time of the machine for punching out the clamp structure. To further improve its holding ability, the rear edge includes a widened portion at least near the area where the outer band portion comes to lie when the clamp is installed on an object to be fastened.

Abstract: A controlled tension limited diameter clamp is disclosed which can be closed and opened with conventional pliers. Working faces are positioned on the external surface of the clamp which can be gripped by pliers. The working faces are conveniently formed by die cutting and raising the edge of the metal.

Abstract: An earless clamp structure to which elastic stretchability is imparted by one or more clamping band sections which essentially consist of lateral band portions converging toward one another from each end of the section. The lateral band portions define therebetween a window-like opening resembling an hourglass. The method in accordance with the present invention involves the step of removing certain material portions from the clamping band to obtain a section with non-rectilinear lateral band portions.

Abstract: In a hose clamp having a resilient clamp body (2) substantially annularly surrounding one hose end and having tightening ends (6, 7) that overlap one another and are bent substantially radially away from the clamp body (2), in which a certain inside diameter prevails in the relaxed state, and the clamp body (2) can be spread apart to a considerably greater diameter counter to its own spring force with the aid of a tightening tool engaging the tightening ends (6, 7), and one tightening end (6) is embodied as an inverted U and the other tightening end (7) is embodied in protrusionlike fashion and is disposed between the U legs of one tightening end (6) with its free end approximately at the radial height of the crossbar of the U of the one tightening end (6), and the one tightening end (6), for forming a shackle (8), is bent back toward the other tightening end (7) substantially at a tangent or in a circumferentially curved manner, at a certain radial distance from the clamp body (2), and the tightening ends (6

Abstract: A hose clamp includes an annular clamp body having a first terminal portion and a second terminal portion. The first terminal portion has a guide opening, a lock wall defined between the guide opening and the leading end of the first terminal portion, and side walls disposed across the guide opening and folded back over themselves in a substantially U-shaped cross section having an upper side piece and a lower side piece. The second terminal portion has a radially outwardly bent wall serving as an engaging tongue piece. The clamp body is kept in a radially expanded state when the engaging tongue piece of the second terminal portion abuts against the lock wall of the first terminal portion and is radially contracted when the abutment between the engaging tongue piece and the lock wall is released to move the engaging tongue piece within the guide opening.

Abstract: This invention relates to a clamp comprising a metal band wound on itself, of which one of the ends is shaped as a hook and of which the other end presents a projecting lug allowing the free edge of the hook to be fastened. The lug presents a boss on its face serving as bearing for the free edge of the hook after fastening, this boss preferably being located substantially in the middle of the width of the lug, while the free edge of the hook comprises a notch whose shape is complementary to that of the boss of the lug.

Abstract: This device relates to a clamp constituted by a metal band wound on itself, comprising complementary tightening and/or joining elements in the vicinity of each of its ends. The band presents, in a zone preferably remote from the ends, a longitudinal slit thus defining two band sections, parallel and contiguous with respect to each other. On each of the band sections is provided at least one corrugation projecting outwardly of the clamp, each corrugation of one of the band sections being offset circumferentially with respect to each corrugation of the other band section.

Abstract: This invention relates to a clamp, adapted to be dismounted and re-used, constituted by a metal band wound on itself, comprising respectively in the vicinity of each of its ends, on the one hand, two radial stops directed outwardly of the band to constitute complementary tightening means adapted to be gripped by a tool of the pliers type, on the other hand, complementary joining means generally in the form of hooks which, in the non-tightened state of the clamp, are at a distance from each other. Each assembly of a tightening means and of a joining means is constituted by a portion of metal band of which the two ends are suitably bent to form the stop and the hook, said band portion being independent of the band constituting the clamp and being fixed thereon by any appropriate means.

Abstract: A hose clamp free from the possibility of a clamp body being accidentally displaced on the peripheral surface of a hose during the insertion of the hose around the terminal part of a connection pipe is attained by the incorporation therein of means capable of coming into resilient contact with the peripheral surface of the hose and inhibiting the clamp body from being displaced on the peripheral surface of the hose when the hose is inserted into the clamping ring part in a radially expanded state.

Abstract: The present invention relates to a surgical clip for occluding the flow of blood through a blood vessel, artery or vein. The clip formed with longitudinal and transverse or lateral notches to prevent both longitudinal and lateral slippage of the clip with respect to the vessel. The clip is also provided with coined front legs to assist in deformation about a vessel and to further provide a self aligning feature when the clips are arranged in an abutting, forward facing row. The apparatus of the present invention forms the foregoing described clip and does so in a symmetrical way to provide a clip with a uniform stock length.

Abstract: The fitting, which serves for rigid and flexible tube alike, comprises a base (1) to which two arched ribbon elements (4, 5) are hinged in a face-to-face arrangement via intermediate points along their relative external surface; the two elements (4, 5) are fastened together around the tube by causing an inward-facing lip (12), located at the end of one element (4), to engage one of a set of teeth (9) spaced apart at a given distance one from the next along the outer surface of the other element (5). The element (4) with the lip incorporates a lower section (8) shaped so as to breast, at least in part, with the cylindrical external surface of the clamped pipe or tube.

Abstract: A hose clamp (1) having a spring-loaded clamping body (2) encircling the end of the hose in a generally circular manner, and overlapping clamping ends (6, 7), where in the released state a defined inner diameter -clamping state- exists and the clamping body (2) can be spread to a considerably larger diameter against its inherent spring force by a spreading tool acting on the clamping ends (6, 7), which can be manipulated during operation without a special spreading tool because in the spread-open state of the clamping body (2) the clamping ends (6, 7) can be locked against each other and can be unlocked from each other for clamping a hose end.

Abstract: A quick-release radial clamp for fitting over and clamping a hose onto a rigid fitting. The clamp has a split ring with an inner and outer surface. The split in the ring extends in the axial direction of the ring and forms two abutting ends. A stretched elastomeric sleeve is placed upon the outer surface of the ring and is held in that position by the ring as long as the shape of ring is held by the abutting ends. A quick-release mechanism is provided at the ends for disengaging them from their abutting positions, thereby permitting the stretched sleeve to recover and contract. This contracts the rings as well by causing the ends to slide past each other. This clamping contraction is accomplished quickly and easily and provides a sure clamp.

Abstract: A hose band is formed into a ring, in order to be wrapped around a hose. When the band is wrapped around the hose, its end portions are superposed, one overlying the other. Projections are formed on the underlying end portion, in order to be fitted into the holes made in the overlying end portion. A tightening lug is included in the overlying end portion of the band. The lug comprises a pair of outwardly protruding legs set apart in the lengthwise direction of the band, and a main section connecting the upper ends of the legs and plastically bent in such a way that the portion, which is the center as viewed in the widthwise direction, protrudes inwardly, and both end portions protrude outwardly.

Abstract: The invention relates to a clamp constituted by a band of metal comprising, at each one of its ends, complementary tightening and/or fastening means, whereas the inner end of the band comprises an extension which goes beyond the corresponding fastening means, under the outer end of the band.In this clamp, the transversal edge of the band, which constitutes the free end of the extension, has a profile indented into the band, such as an .OMEGA.-shaped profile, whereas close to its outer end, and on this side of the corresponding tightening and/or fastening means, said band comprises an elongated boss, which projects from its inner face, and is adapted to penetrate into the indented profile of the free end of the extension, said boss having its maximum height substantially equal to the thickness of the band.

Abstract: A clamp constituted by a band of metal wound over itself and comprising at one of its end, called outer end, and close to the other end, called inner end, complementary fastening means, the metal band being extended, beyond the fastening means situated at the inner end, by a part which, in the unfastened position of the clamp, spreads between the two fastening means, clamp wherein the inner end of the band ends into a bent-up part, generally shaped as an outwardly directed T, whereas the outer end is provided, at the back of its fastening means, with a longitudinal slot of which the width is at least equal to that of the vertical bar of the T.

Abstract: A hose band according to the present invention comprises an elongated metallic band body which, when in use, is wound around a hose so that both end portions thereof are joined to each other. The band body has spaced apart retaining holes formed in an outer lap portion and hooks formed on an inner lap portion and adapted to engage the holes. The hooks each have a slanting surface which protrudes obliquely toward the end side of the outer lap portion. The bulge outward so that their cross section is outwardly convex.

Abstract: A reuseable open type clamp comprising an arcuate-like strap having two generally opposing, spaced ends, each of which has been bent outwardly of the general periphery of the clamp, to form first and second ears with one of the ears having an aperture therein and the other of the ears having a projection thereon extending outwardly from its respective ear, with the projection being adapted to be received in the aperture in the closed condition of the clamp, to hold the strap in closed clamping condition. Removal of the projection from the aperture enables the clamp to spring to open position due to the nature resiliency of the strap portion.

Abstract: A clamp structure with a clamping band having open ends and a mechanical interconnection of the open ends of the band that include at least two outwardly extending hooks in the inner band portion adapted to engage in apertures in the outer band portion; at least one of the hooks is a cold-deformed support hook and another one of the hooks is a generally circumferentially extending combined guide and support hook which has an inclined guide and support surface operable to initially engage with the corresponding aperture in the outer band portion so as to guide the inner and outer band portions toward one another while at the same time absorbing circumferentially directed tightening forces until the cold-deformed support hook becomes effective in also absorbing tightening forces by engagement of its abutment surface with the corresponding aperture.

Abstract: An improved U-clip of the type having a first side with a pair of transversely-spaced prongs with bevelled inside ends and a second side having a medial prong with a bevelled inside end is disclosed, such clip further having rounded side edges.

Abstract: An improved hose clamp of the kind comprising a tightening band which is bent to annular shape and which has end portions one of which is provided with transverse grooves. In the latter engage the threads of a screw worm which is rotatably journalled in a sleeve enclosing the screw worm but axially non-slidable therein. Said sleeve is formed with a space allowing the threaded band end portion to be moved out of the sleeve upon rotation therein of the screw worm. The opposite band end portion which is attached to the sleeve is elastic in its lengthwise direction and encloses a pressure strap which is bent to annular shape with its end portions overlapping. This pressure strap is arranged to form a guide means to the screw worm sleeve and to the tightening band between said sleeve and said band and an enclosed article. The tightening band describes an arcuate line in the plane of the external face of the pressure strap along the major portion of the circumference of the latter.

Abstract: A clamp structure with a clamping band having open ends and a mechanical interconnection of the open ends of the band that include at least two outwardly extending hooks in the inner band portion adapted to engage in apertures in the outer band portion; at least one of the hooks is a cold-deformed support hook and another one of the hooks is a generally circumferentially extending combined guide and support hook which has an inclined guide and support surface operable to initially engage with the corresponding aperture in the outer band portion so as to guide the inner and outer band portions toward one another while at the same time absorbing circumferentially directed tightening forces until the cold-deformed support hook becomes effective in also absorbing tightening forces by engagement of its abutment surface with the corresponding aperture.

Abstract: The invention refers to a releasable tubular clamp for connecting cylindrical or profile tubes. In order to provide a releasable tubular clamp for interconnecting cylindrical or profile tubes wherein the press force is increased and after assembly a greater degree of compactness and stiffness is present, a longitudinally running longitudinal rib (1) open towards the interior is provided which prior to clamping exhibits a U-shaped (ear-shaped) cross section and whose legs after clamping abut in parts whereby the clamping jacket in an adjoining area exhibits a cross section deviating from a circular contour.

Abstract: In order to guarantee the sealing quality of a joining between a pipe socket and a tube by means of a clamp pressing a tube on a pipe wall, where the press-on power to be exercised by the tube clamp will act as uniformly as possible all over the total pipe circumference and cause no damage to the tube, it is suggested that the clamp is an open tube clamp being operative by its inner clamping power over a relatively wide-ranged press-on surface, being moved into its acting position by a tool overcoming the clamping power, and where an almost uniform pressing is provided extending over the total press-on surface (F) by a cross section increasing from the open ends (E1, E2) in direction to the clamping dead center (R).

Abstract: A tensioning band includes a plurality of notches in the free end. Formed in the notches are tabs which extend between the free end and the tensioned loop to prevent the loop from moving against the article being tensioned and thereby relaxing the tension.

Abstract: A clamp structure with a clamping band and with at least one plastically deformable so-called "Oetiker" ear to be contracted to tighten the clamp structure about the object to be fastened; to assure a substantially smooth; gap-free transistion in the circumferential direction within the area of overlap, for example, of an inner and outer band portion in the area of mechanical interlock or of an insert member and corresponding parts of the clamping band, a tongue portion is provided at each free end of the inner part which is adapted to engage in a corresponding aperture in the respective outer part when the ear is contracted.

Abstract: A clamp structure with a clamping band having open ends adapted to be mechanically interconnected by outwardly extending hooks in an inner band portion operable to engage in corresponding apertures provided in an outer band portion; at least one plastically deformable ear is provided in the clamp structure for tightening the clamping band about an object to be fastened by plastic deformation of the ear; a substantially gap-free transition in the circumferential direction from the inner band portion to the ring-like configuration of the clamp structure defined by the clamping band is obtained by the use of a tongue-like extension at the free end of the inner band portion which is operable to engage into a tongue-receiving aperture or channel provided in the outer band portion.