Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B13/00—Bundling articles
  • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
  • B65B13/24—Securing ends of binding material
  • B65B13/30—Securing ends of binding material by deforming the overlapping ends of the strip or band
  • B65B13/305—Hand tools
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B13/00—Bundling articles
  • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
  • B65B13/00—Bundling articles
  • B65B13/18—Details of, or auxiliary devices used in, bundling machines or bundling tools
  • B65B13/24—Securing ends of binding material
  • B65B13/34—Securing ends of binding material by applying separate securing members, e.g. deformable clips
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D63/00—Flexible elongated elements, e.g. straps, for bundling or supporting articles
  • B65D63/02—Metallic straps, tapes, or bands; Joints between ends thereof
  • B65D63/06—Joints produced by application of separate securing members, e.g. by deformation thereof
  • B65D63/08—Joints using buckles, wedges, or like locking members attached to the ends of the elements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
  • F16B2/00—Friction-grip releasable fastenings
  • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
  • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
  • F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands

Definitions

• the present invention relates to a clamp comprising a metal strip wound on itself and a transverse loop retained at the first end of the strip and forming, on the outer side of said first end, a passage in which the second end of the strip. is inserted, the loop having an inner portion which is disposed against the inner face of the first end of the strip and a transverse wedging edge, turned away from the free end of the first end of the strip, cooperates with a transverse wedging edge of the first end of the strip which delimits a wedging recess formed in this first end.
• a collar of this type is known, for example from patent EP 1 775 220.
• the loop has two register openings on its inner and outer faces, and the first end of the strip also has an opening which is in register with the openings of the loop.
• the band is wrapped around the object, the second end of the band is inserted into the passage of the loop, traction is exerted on the second end so as to reduce the diameter of the band.
• collar and stamped the area of the second end of the strip which is register with the aforementioned openings.
• the stamping punch passes through the opening of the outer face of the loop and pushes the material of the second end of the strip through the opening of the first end of the strip and until the opening of the inner face of the loop.
• stamping of the second end of the strip is retained by the edges of these openings.
• the cooperation of stamping is imprecise and, moreover, patent EP 1 775 220 proposes various forms of embossing, some of which are complex and difficult to obtain, in an attempt to overcome this inaccuracy.
• the stamping cooperates with either the edge of the opening of the first end of the strip, or with that of the opening of the inner face of the loop, or with these two edges, if they are perfectly aligned these different modes of cooperation being random.
• the traction behavior of the collars made according to this patent may differ from one collar to the other, the clamping forces exerting, as the case may be, between the two ends of the strip or between the second end of the strip and the loop, itself retained at the first end of the strip.
• the folded edge of the opening of the inner face of the loop is too radially protruding in the loop, it may hinder the introduction of the second end into the loop and even adversely affect the quality and accuracy of the stamp.
• the fact that the first end of the band passes under the inner face of the loop causes a significant internal extra thickness that can be detrimental, especially when the object clamped with the collar is a pipe that must to be tightly uniform throughout its circumference.
• the invention proposes to remedy at least in part these drawbacks of the state of the art.
• the second end of the strip has a transverse retaining edge received in the stagger recess and co-operating in abutment with a retaining edge of this stowing recess for retaining the second end of the strip against a displacement in the direction of an increase in the diameter of the collar.
• the manufacture of the collar is simple since it takes advantage of the presence of the reinforcement of wedging which serves to wedge the loop relative to the first end of the collar for, in the tight state of the collar, hold the second end of the band against displacement in the direction of an increase in diameter.
• the retaining edge is received in the locking recess by being correctly positioned relative to it, and it is with an edge of this recess that cooperates with this edge to achieve the aforementioned retention.
• the retaining edge cooperates, not with an edge of the wafer, but with the retaining edge which is directly formed in the first end of the strip. In other words, there is carried out a retention "band tape" which does not exert stress on the wafer. The quality of the tightening is thus optimized.
• the transverse wedging edge is a free edge located on a first free end of the inner part of the loop.
• the transverse wedging edge is formed at the bottom of a notch of the first free end of the inner part of the loop.
• the wedging recess can be housed in this notch. Seen from the inside of the band, the bottom of the recess can thus be located on the same radius as the inner face of the loop, on either side of the notch.
• the depth of the recess may decrease as it moves away from the buckle, so as to avoid a sudden protrusion on the inner face of the band, this may guarantee a better tightness of the tightening of the collar when it is tightened on an object in which a fluid is conveyed, for example when it is tightened on a pipe fitted on a sleeve.
• the transverse retaining edge delimits a retaining recess formed in the second end of the strip.
• the inside of the band is hardened, which gives good mechanical strength to the recess and the retaining edge, thus promoting the quality of the clamping.
• the retaining recess is delimited by a transverse cut and that the retaining edge is formed on the lip of said cutout which is located at the bottom of the retaining recess.
• the retaining recess is formed by a puncture, the lip forming the cutting edge cooperates in retention with the retaining edge of the wedging recess.
• the wedge recess forms a bowl whose one side has the wedging edge on its external face to the recess and has the retaining edge on its inner face to the recess.
• the retaining edge is located in an area in which the material of the strip is very hardened, and which therefore has a very high tensile strength.
• the collar can therefore be tightened with a very high tightening tension.
• the wedging recess is delimited by a transverse cut and the wedging edge is formed on the lip of said cutout which is located at the bottom of the wedge recess, while the retaining edge is formed on the lip. opposite.
• the accuracy of the relative positioning of the retaining edge of the retaining edge is important, which allows precision clamping.
• the inner part of the loop has an additional transverse wedge edge, turned on the free end side of the first end of the strip and cooperating with an additional transverse wedging edge of the first end of the strip which delimits a additional wedging recess formed in this first end.
• the additional transversal wedge edge is a free edge located on the second free end of the inner part of the loop.
• the additional transverse wedge edge may be formed at the bottom of a notch of the second free end of the inner portion of the loop.
• the transverse wedging edge and the additional wedge transversal edge may be formed in the same way, symmetrically with respect to a median transverse line of the inner part of the loop.
• the buckle carries at least one outer tab projecting radially, the tab having the shape of a hook having a rod carrying a head under which a clearance is formed.
• this outer tab promotes the positioning of the collar relative to its clamping tool.
• the passage of the loop in which the second end of the strip is inserted comprises a restraining section delimited by at least one outer wall portion of the loop located above the outer face of the first end of the strip. band, and that the outer leg is offset longitudinally with respect to this outer wall portion.
• FIG. 1 is a perspective view of a collar according to the invention, before tightening
• FIG. 2 is a partial perspective view of the same collar, after tightening
• FIG. 3 shows, in perspective, the inner face of the band of the collar of Figures 1 and 2, in the vicinity of the transverse loop;
• FIG. 4 is a sectional view along the plane IV-IV of Figure 2;
• Figure 5 is a view similar to that of Figure 4, for an alternative embodiment
• FIG. 7 is an end view of Figure 6, according to the arrow VII.
• internal an element which is situated towards the geometric center C of the circle defined by the collar, whereas an element situated on the opposite side to this center C will be termed “external”.
• longitudinal will be used to describe an element directed along the length of the strip, that is to say, when the strip is wound. as shown in the figures, according to the winding direction.
• transversal element will be termed perpendicular to this length, that is to say along the width of the strip.
• FIGS. 1 to 3 show a clamping collar comprising a metal strip 10 wound on itself and a transverse loop 12 retained at the first end 10A of the strip.
• the loop 12 forms, on the outer side of the first end 10A, a passage 13 in which the second end 10B of the strip is inserted.
• first end of the strip is the entire portion of the first end which cooperates with the loop.
• second end is the entire section of the second end that cooperates with the loop.
• the loop 12 has an inner portion 14 disposed against the inner face of the first end 10A of the strip 10.
• the loop On the outer side, the loop has two outer wall portions, respectively 15A and 15B which are folded, each, from one of the longitudinal edges of the inner portion 14. These outer wall portions form wings which are located above the outer face of the first end 10A of the strip 10.
• the radially delimited space between the inner faces of these folded wings and the outer face of the end 10A of the strip forms a contention section of the passage 13, in which is passed the second end 10B of the strip.
• contention section means that the radial height of this space is just sufficient to allow the introduction of the second end 10B of the strip, which it retains radially outwardly.
• the first end 10A has a wedging recess 16 which contributes to the setting of the loop relative to the first end.
• this wedging recess 16 has a transverse wedging edge 16A which cooperates with a transverse wedging edge 14A of the inner part of the buckle 12.
• this edge and this edge are rectilinear and oriented transversely to the strip.
• the cooperation between the edge 16A and the edge 14A prevents the displacement of the first end 10A of the band in the direction F (see FIG. 4) with respect to the loop 12.
• the inner part of the loop has an additional transverse wedging edge 14B which is turned towards the free end 10A 'of the first end 10A of the strip and which cooperates with a transverse wedging edge additional 16'A of the first end of the band.
• This additional wedging transverse edge defines an additional wedging recess 16 'formed in this first end.
• the additional wedge transverse edge 16B and the additional wedge recess 16 ' are generally symmetrical with the transverse wedge edge 16A and the wedge recess 16 with respect to a median transverse line L of the inner portion of the loop.
• the cooperation between the edge 16'A and the edge 14B prevents displacements of the first end 10A of the strip relative to the loop 12 in the direction opposite to the direction F indicated in FIG.
• the second end 10B of the strip has a transverse retaining edge 11 which is received in the stagger recess 16.
• This transverse retaining edge cooperates in abutment with a retaining edge 17A of the recess
• the transverse retaining edge 11 delimits a retaining recess 1 which is formed in the second end of the strip.
• This retaining recess 11 'therefore forms a projection on the internal face of the second end 10B of the strip and, as seen in FIG. 4, the retaining recess is received in the wedging recess 16.
• the longitudinal edges of the retaining recess 11 ' form projections inwards in which the material is very hardened. It is the same for the transverse edge of the recess opposite the retaining edge 11. As a result, the entire area of the retaining recess has a high mechanical strength. Thus, the retaining edge 11 can withstand particularly high forces.
• the retaining recess 11 ' is delimited by a transverse cut, the retaining edge 11 being formed on the lip of this cutout which is located at the bottom of the retaining recess and which is turned on the opposite side to the free end 10'B of the second end of the band.
• This lip is rectilinear and oriented transversely, and its geometry is particularly clear, so that the retention of the second end of the strip relative to the transverse wedging edge is carried out accurately.
• the setting recess 16 forms a bowl whose one side has the wedging edge 16A on its outer face to the recess 16 and has the retaining edge 17A on its inner face to the recess.
• the inner and outer recess faces are thus defined with respect to the recess in itself.
• the recess forming a projection on the inner face of the first end 10A of the collar, the outer face to the recess is located on the side of the inner face of the first end 10A, while the inner face recess is located on the side of the outer face of this first end.
• the side of the recess 16 which has the wedging edge 16A and the retaining edge 17A on its two opposite faces takes the form of a radial projection, substantially perpendicular to the internal face of the internal part 14 of the loop.
• the transverse wedging edge 14A is a free edge situated on the first free end 12A of the inner part 14 of the buckle 12. More precisely, in this case, the transverse edge of 14A wedging is formed at the bottom of a notch 19 of the first free end 12A above. On either side of the notch, there are longitudinal advances 19A and 19B.
• the locking recess 16 is received in the notch by being bordered laterally by the aforementioned advances 19A and 19B.
• the face internal recess 16 towards the bottom of the notch, the radial level of the inner face of the inner portion 14 of the loop and gradually returns to the plane of the strip away from the bottom of the notch 19 to do not make a sudden jump on the inside of the band.
• the first end of the strip located at the free end 12A of the inner part of the loop 12 forms a projection 23 towards the inside, so that the internal face of the strip situated on the side of this projection opposed to the free end 10 ⁇ of the strip is located substantially in the continuity of the inner face of the loop 12.
• the height of the projection measured radially, substantially corresponds to the thickness Eb of the inner portion 14 of the loop.
• the additional transverse wedging edge 14B is a free edge of the loop, but this time it is located at the second free end 12B of the inner portion 14 of the loop opposite its first free end 12A.
• This additional wedging edge 14B is also formed at the bottom of a notch 19 'of the second free end 12B of the inner part 14 of the loop. This notch is thus bordered by longitudinal advances 19'A and 19'B.
• first end 10A of the band has, at the second free end 12B of the inner portion 14 of the loop, lateral projections 21A, 21B.
• These projections are made by partial punching of the first end of the strip which locally flutes the material transversely outwards. They form some kind of "ears" side with which cooperates the free end 12'B of the loop and thus contribute to retain the first end of the band against a displacement in the opposite direction to the arrow F relative to the loop 12.
• both the lateral projections 21A and 21B mentioned above are used, and the additional transverse wedging edge 16'A cooperating with the additional transverse wedging edge 14B.
• the loop 12 of the collar 10 has two external tabs 20 and 22 which project radially.
• Each of these tabs has the shape of a hook, with a rod, respectively 20A and 22A, and a head, respectively 20B and 22B, so that a clearance D is formed under the heads 20B and 22B.
• This clearance forms a portion of the passage 13, the second end 10B of the band passing under the heads 20B and 22B of the hooks.
• it is the contention section of this passage, formed under the folded wings 15A and 15B, which serves to retain the end 10B of the band against a radial displacement to the outside.
• the heads have free edges 20'B, 22'B which extend longitudinally.
• the rods extend opposite one another, on either side of the loop, starting from the longitudinal edges of its inner part 14, the second end 10B of the band passing between them to access the compression section of the passage 13.
• each wing of the loop 12 in which an outer wall portion 15A or 15B is formed may initially form a whole with the tab 20 or 22; a simple transverse cut separates the tab from the wall portion and the latter is folded to be parallel to the inner portion 14 of the loop 12, while the tab is shaped hook.
• these tabs serve to ensure proper relative positioning of the collar and the tool used to tighten it.
• the depth P of the wedging recess 16 measured radially from the plane of the external face of the first end of the strip on either side of the recess, is at most substantially equal to the thickness Eb of the inner portion 14 of the loop.
• the wedging recess is formed by the aforementioned bowl.
• the depth of this recess is not critical, as long as it allows the inner face of the recess not to project internally with respect to the internal face of the inner part of the loop 12.
• the setting recess 116 is delimited by a transverse cut.
• the wedging edge 116A is formed on the lip of this cutout which is located at the bottom of the recess 116 and which is thus directed towards the free end 110'A of the first end of the strip.
• the depth P of the recess 116 corresponds to the thickness e of the strip so that, coming to be housed in this wedging recess, the part of the second end 110B of the band in which the retaining recess 11 is formed comes in the plane of the portion of the first end 110A which is located against the outer face of the inner portion 114 of the loop 112.
• the retaining edge 111 is located opposite the lip 117A of the cutout which delimits the setting recess 116, turned on the opposite side to the free end 110'A of the first end of the strip. This lip 117A thus forms the retaining edge.
• FIGS. 6 and 7 show the cooperation of the collar with the tool used to tighten it.
• the portion of the tool 30 shown in Figures 6 and 7 comprises its head 32 and its punch 33 which, by an actuating system M, is moved in a channel 31 to stamp the second end 10B from the band of the collar and form the retaining stop.
• the punch 33 is represented at the moment when it touches the band of the collar, in its drawing movement according to the arrow A.
• the collar is tightened by traction (by means not shown) on this second end, while the head of the tool is supported on the loop 12.
• the punch 33 is moved to carry out stamping. It is noted that the head 33A of the punch 33 is beveled and has a transverse cutting tip 33 ⁇ . It simultaneously carries the retaining stop 11 and the retaining recess 11 '.
• the tabs 20 and 22 serve for the relative positioning of the tool and the collar. They make it possible to position the loop in a perpendicular plane in the direction V of stamping of the punch.
• the tabs 20 and 22 are at least partly inserted into lateral recesses 34. More specifically, it is the heads 20B and 22B of the hooks formed by these tabs, which penetrate into these recesses 34. The inner face of the head the hook can cooperate with the face of the recess 34 which is located opposite, to avoid movement of the tool relative to the collar in the direction of the arrow H shown in Figure 7.
• a portion central 36 of the head of the tool located on the inner side (towards the center of the collar) relative to the recesses 34 is wedged between the rods 20A and 22A of the hooks formed by the tabs 20 and 22. This therefore avoids the lateral deflections in the direction I of the tool relative to the collar.
• the head of the tool may have cheeks 38 which close the recesses 34 on the sides of this head, so that the housing for the legs take the form of slits shaped hooks. These cheeks 38 are visible in FIG. 7 and one of them is sketched in broken dash line in FIG.
• the loop 12 is formed from a metal flank which is cut and folded appropriately.
• the "joint plane" of this looped flank is located on the outside of the collar, between the folded wings 15A and 15B.
• the longitudinal ends (free longitudinal edges) of these wings are spaced apart by a width E.
• this allows a saving of material for the material in which the loop is formed.
• this can promote the setting of the tool relative to the collar.
• the central portion 36 of the head 32 of the tool can thus have a central rib 36A inwardly projecting, which is housed in the space formed between the free ends of the wings 15A and 15B, to cooperate directly with the second end 10B of the collar band.
• the lateral projections which extend on either side of the central rib 36A, on the inner side of the recesses 34, cooperate directly with the folded wings 15A and 15B.
• each of them has an internal rib, respectively 20C and 22C at the junction between its rod and its head.
• the thickness of the internal ribs increases as it gets closer to the head. It may for example be gussets inclined substantially at 45 degrees relative to the radial direction, projecting inwardly of the legs.
• the ribs delimit between them, in the vicinity of the head of the hooks, a width less than the width of the second end 10B of the strip. This makes it possible to prevent the manipulator from having closed the collar by introducing only the second end between the tabs 20 and 22.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Clamps And Clips (AREA)
• Buckles (AREA)
• Adornments (AREA)

Priority Applications (8)

Applications Claiming Priority (2)

Publications (1)

Family

ID=51417477

Family Applications (1)

Country Status (10)

Families Citing this family (8)

Citations (5)

Family Cites Families (23)

• 2014
  • 2014-06-23 FR FR1455794A patent/FR3022598B1/fr active Active
• 2015
  • 2015-06-22 EP EP15745522.1A patent/EP3157836B1/fr active Active
  • 2015-06-22 JP JP2016574963A patent/JP6744229B2/ja active Active
  • 2015-06-22 CN CN201580034420.4A patent/CN106458399B/zh active Active
  • 2015-06-22 ES ES15745522.1T patent/ES2685453T3/es active Active
  • 2015-06-22 BR BR112016030157-9A patent/BR112016030157B1/pt active Search and Examination
  • 2015-06-22 KR KR1020177002028A patent/KR102412564B1/ko active Active
  • 2015-06-22 RU RU2017101644A patent/RU2678390C2/ru active
  • 2015-06-22 US US15/321,073 patent/US10065776B2/en active Active
  • 2015-06-22 WO PCT/FR2015/051644 patent/WO2015197959A1/fr not_active Ceased

Patent Citations (5)

Also Published As

Similar Documents

Legal Events