EP0827909A1 - Werkzeug zum Spannen eines Bandes, insbesondere eines Kabelbandes - Google Patents

Werkzeug zum Spannen eines Bandes, insbesondere eines Kabelbandes Download PDF

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Publication number
EP0827909A1
EP0827909A1 EP97402071A EP97402071A EP0827909A1 EP 0827909 A1 EP0827909 A1 EP 0827909A1 EP 97402071 A EP97402071 A EP 97402071A EP 97402071 A EP97402071 A EP 97402071A EP 0827909 A1 EP0827909 A1 EP 0827909A1
Authority
EP
European Patent Office
Prior art keywords
ratchet
clamp according
notch
traction clamp
lashing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97402071A
Other languages
English (en)
French (fr)
Other versions
EP0827909B1 (de
Inventor
Daniel Paulin
Jean-Pierre Robbes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0827909A1 publication Critical patent/EP0827909A1/de
Application granted granted Critical
Publication of EP0827909B1 publication Critical patent/EP0827909B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B65B13/02—Applying and securing binding material around articles or groups of articles, e.g. using strings, wires, strips, bands or tapes
    • B65B13/025—Hand-held tools
    • B65B13/027—Hand-held tools for applying straps having preformed connecting means, e.g. cable ties

Definitions

  • the present invention relates generally the traction clamps which, for the exercise of a traction on a strap, such as that of a clamp, comprises, overall, two movable mounted parts, one relative to the other, namely, on the one hand, a piece said below by simple moving part convenience, which for entering the strap, is fitted with a ratchet mounted to rotate opposite a fixed bearing surface on this moving part, this ratchet having at least one lashing notch parallel to this bearing surface and being subjected to elastic means of polarization which constantly solicit it in rotation in a sense for which this lashing notch approaches this bearing surface, and, on the other hand, a part, hereinafter called by simple convenience fixed part, which to provide a stop for the moving part at rest, comprises a plate in the direction of which this moving part is permanently stressed by elastic return means.
  • the moving part is a simple zipper movable mounted in translation on the fixed part.
  • the moving part and the fixed part can be hinged to each other, like handles.
  • the present invention relates more particularly the ratchet of the moving part.
  • this ratchet is a piece massive with several lashing notches, each of which is formed by the end edge of a more or less tapered tooth resulting from shaping or machining of this part massive.
  • the other securing notches do not intervene that eventually, each in turn, when the thickness of the strap justifies it, thus ensuring a complement of tightening, until a balance is established between the various action and reaction efforts involved.
  • this ratchet comes to bear on the bearing surface which is associated on this moving part, and, this bearing surface usually being provided with a certain coating, whether a plastic coating or a layer of paint, it may result in notch penetration active lashing of this ratchet in this coating likely to inadvertent blocking of this ratchet against this surface support, at the risk of a subsequent malfunction of all.
  • the ratchet comes to bear on this bearing surface by its extreme edge, at a distance from its securing notches, this extreme edge intervening circumferentially upstream of these in the corresponding direction of rotation.
  • the ratchet is reduced to a simple plate, the edge forms a securing notch, and, by an extension side located in its plane, this plate forms as a corollary means of stop, which intervene apart the path of the strap, and which, when empty, and moving part away from the plate of the fixed part, define, for the ratchet, regardless of the lashing notch and associated support surface, an angular position extreme for which this lashing notch is at most in contact of this bearing surface.
  • the present invention generally has for subject a provision to eliminate the various disadvantages mentioned above.
  • pliers for two-piece lanyards mounted movable relative to each other, namely, of a part, a part, called here mobile part, which, for the seizure of such a strap, is provided with a ratchet rotatably mounted in look of a fixed bearing surface on the moving part, this ratchet having at least one lashing notch parallel to this bearing surface and being subjected to elastic means of polarization which permanently solicit it in rotation in a sense for which this lashing notch approaches this bearing surface, and, on the other hand, a part, said here fixed part, which, to provide a stop for the moving part at rest, comprises a plate in the direction of which this moving part is permanently stressed by means elastic return, with, between the ratchet and the moving part, stop means, which, when empty, and moving part separated from the plate of the fixed part, define, for the ratchet, regardless of the lashing notch and the bearing surface, a extreme angular position for which this securing notch
  • the stop means intervene downstream of the notch lashing, and it then borders the recess of the ratchet of the upstream side of this recess.
  • the chips and other debris from thong are then systematically evacuated, which, avoiding progressive fouling of the ratchet, advantageously ensures to this ratchet the sustainability of its proper functioning.
  • the stop means can also intervene upstream of the securing notch if desired.
  • these stop means advantageously limit the penetration of the lashing notch into this strap, and it is thus advantageously spared.
  • the arrangement according to the invention therefore combines advantageously with a simplified and economical production, ratchet, leading to the presence of only one notch lashing on it.
  • the ratchet is made of sheet metal suitably cut and folded, and, when cut, its notch lashing does not require any shaping or machining.
  • stop means therefore do not intervene circumferentially at a distance from this securing notch, and, a a fortiori, there is no recess between them and this one.
  • This traction clamp 10 is in fact intended for allow, on the one hand, to exert a traction on a strap 11, and, for example, on the strap 11 of a collar clamp 12, which, thanks to the closing head 13 of this one, is looped on one or more organs, not shown, to grip, and, in a manner known per se, this strap 11 comprises, successively, two sections, namely, a zipper 11 ′, which forms its initial section, and a section notched 11 ", and, on the other hand, to cut, then, at the time desired, this strap 11, in the vicinity, for example, of the head closure 13 in which it is engaged.
  • this traction clamp 10 comprises, overall, two parts 15, 16 which, specific to its grip, are mounted movable relative to each other.
  • these parts 15, 16 are articulated to each other by an axis 17 in the manner of handles.
  • the part 15, called here moving part, is responsible for allow the grip of the strap 11, and therefore it forms a pull handle.
  • ratchet 18 which, mounted rotatable around an axis 19 parallel to axis 17, intervenes in look of a fixed support surface 20 on it.
  • this part mobile 15 has, in cross section, a U-shaped profile, with a middle part 21, which is that on which it is acted, and two side wings 22.
  • the ratchet 18 extends between the lateral wings 22, and its axis 19 is substantially perpendicular thereto.
  • the bearing surface 20 As for the bearing surface 20, it is formed by 22 'square returns, superimposed on each other, wings side 22.
  • the ratchet 18 has, parallel to the bearing surface 20, and therefore parallel to its axis 19, at minus a lashing notch 24, for gripping the strap 11.
  • ratchet 18 has only one lashing notch 24.
  • the ratchet 18 is subjected to elastic polarization means 25 which urge it in constantly rotating in a direction for which, such as shown diagrammatically by an arrow F1 in FIGS. 2 to 5, this notch lashing 24 approaches the bearing surface 20.
  • these elastic polarization means 25 are constituted by a bending spring, which by a part median 26 helical, is engaged on axis 19, and one of which branch 27 bears on ratchet 18 while its other branch 28 is supported on the moving part 15, being for example in taken to do this with a lug 29 formed from a punctured from the corresponding side wing 22 thereof, figure 1.
  • the part 16, called here fixed part is equipped with cutting means 30, for cutting the strap 11, and therefore it forms a cutting handle.
  • these cutting means 30 consist of a knife mounted sliding in contact with a plate 31 that the fixed part 16 presents transversely opposite the part mobile 15, and, located in the extension, substantially, of the support wall 20 of the movable part 15, this plate 31 has an opening 32 for the passage of the strap 11.
  • the knife forming the cutting means 30 is supported on a stop 34 carried by a cutting lever 35 rotatably mounted on the fixed part 16 around an axis 36 parallel to the axis 17, and, beyond this stop 34, it is coupled to a spring 38, which, at its other end, is coupled to the moving part 15.
  • the spring 38 thus constitutes by itself means elastic return by which the moving part 15 is in permanently requested in the direction of the plate 31 of the part fixed 16, and, at rest, this plate 31 therefore provides a stop supporting the moving part 15.
  • the moving part 15 abuts by its lateral wings 22 against the plate 31 of the fixed part 16, and the knife forming the cutting means 30 is kept away from the opening 32 of this plate 31.
  • the ratchet 18 comprises a bearing heel 40, by which, at rest, for this closed position of the traction clamp 10, it relates to the fixed part 16, and, more precisely, to the plate 31 thereof, thus being held by this fixed part 16 in an angular position for which, as shown in Figures 1 and 2, its securing notch 24 is widely spaced from the bearing surface 20 associated therewith.
  • stop means 42 which, when empty, and moving part 15 spaced from the plate 31 of the fixed part 16, the two parts 15, 16 being in practice brought together one on the other at their end opposite to ratchet 18, following the double arrow F2 of figure 1, define, for the ratchet 18, an extreme angular position for which its notch lashing 24 is at most in contact with the bearing surface 20.
  • the stop means 42 operate circumferentially downstream of the securing notch 24 in the direction of engagement of the strap 11, that is to say in the direction of engagement of this strap 11 between the ratchet 18 and the bearing surface 20, as indicated by the arrow F3 in Figures 1, 2, 4 and 5, and therefore circumferentially upstream of the securing notch 24 in the direction of rotation of the ratchet 18 going towards its extreme angular position shown in Figure 3, as shown by the arrow F1 in Figures 2 to 5.
  • the lashing notch 24 of this ratchet 18 is preferably at a distance from the bearing surface 20, as shown in figure 3.
  • the ratchet 18 comprises, substantially square with each other, of a part, a middle part 45, one of the edges of which transverse carries the lashing notch 24, while, abstracting from a possible cutting burr 40 ', the opposite transverse edge forms the support heel 40, and, on the other hand, at least one lateral wing 46, by which it is pivotally mounted on the moving part 15, and, more precisely, on the axis 19 carried by it, this wing lateral 46 comprising for this purpose a bore 47.
  • the ratchet 18 comprises, at the way of a U-piece, a middle part 45 and two lateral wings 46, each of which has a bore 47.
  • the stop means 42 provided between the ratchet 18 and the moving part 15 comprise, on this moving part 15, a stop surface 48, which is interposed on the ratchet path 18 when, under the solicitation of elastic polarization means 25 associated therewith, ratchet 18 approaches the bearing surface 20 of the part mobile 15.
  • the abutment surface 48 is formed by this bearing surface 20, or, more precisely, is in continuity with it.
  • the stop means 42 comprise, on the ratchet 18, an abutment crosspiece 49, which, integral with at least one lateral wings 46 of this ratchet 18, extends transversely, downstream of the middle part 45 thereof, away from it, on the other side of the recess 43 by relative to the lashing notch 24, and, in practice, parallel to the latter.
  • the abutment crosspiece 49 extends continuously from one to the other of the lateral wings 46 of ratchet 18, being in one piece with both of them.
  • this abutment crosspiece 49 extends substantially level with the middle part 45, that is to say in the plane of it, while having, in the sense engagement marked by arrow F3 in Figures 1, 2, 4 and 5, a width much less than that thereof.
  • the lashing notch 24 of the ratchet 18 extends from the upstream side of the recess 43 thereof, plumb or on the edge of this recess 43.
  • this lashing notch 24 is formed by a tongue 50 which extends obliquely the part median 45 of ratchet 18, along at least a portion of the relevant transverse edge of this middle part 45, that is to say along its downstream edge.
  • this tongue 50 extends substantially over the entire length of the downstream transverse edge of the middle part 45.
  • recesses 51 allow obtaining a greater length for the lashing notch 24.
  • the securing catch 24 is formed by an edge of this tongue 50, and, like this, it comes therefore directly from cutting, even during the realization of the ratchet 18, without any resumption of machining or shaping for this one.
  • the lashing notch 24 protrudes from the plane common to the middle part 45 of the ratchet 18 and the abutment crosspiece 49.
  • the recess 43 provided according to the invention on the ratchet 18 extends over the entire width of it, that is to say over the entire width of its middle part 45.
  • the ratchet 18 When the traction clamp 10 is closed, such as shown in Figures 1 and 2, the ratchet 18 carries by its bearing heel 40 on the plate 31 of the fixed part 16, and, driven back by this fixed part 16 under the solicitation of the spring 38, but against its own elastic means of polarization 25, it occupies an angular position for which its middle part 45 cleans with the bearing surface 20, substantially in continuity with the opening 32 of the plate 31, a passage 52 suitable for engaging the strap 11 through this opening 32, as shown schematically by a arrow F3 in Figures 1 and 2.
  • the lashing notch 24 thus remains at a distance from the bearing surface 20, as shown in FIG. 3.
  • the lashing notch 24 could at most be in contact with this support surface 20.
  • the cross member of stop 49 carries on the bearing surface 20 by its edge the further from the middle part 45 of the ratchet 18.
  • the ratchet 18 exerts on the lanyard 11 sufficient pressure for it to be immobilized with respect to the moving part 15.
  • the strap 11 is the object of a traction, between the moving part 15 and the fixed part 16, as shown schematically by the arrow F4 in FIG. 4.
  • stop cross member 49 of ratchet 18 limits advantageously the penetration of the lashing notch 24 thereof in this strap 11.
  • this abutment crosspiece 49 allows advantageously to maintain at a determined value the depth of penetration of the lashing notch 24 in the strap 11, whatever the total thickness of this strap 11.
  • the breaking section of the strap 11 is therefore advantageously known, and the maximum value of the effort of tension which this strap is likely to resist 11 can thus be advantageously controlled.
  • these chips or debris are evacuated by the recess 43 provided according to the invention on the ratchet 18.
  • the abutment crosspiece 49 is split into two sections 53, one for each of the lateral wings 46.
  • the abutment crosspiece 49 extends in door to false from one of the side wings 46.
  • FIG. 10 it remains at a distance from this one.
  • stop cross-member 49 can just as well have a reduced length, like sections 53 described with reference to Figure 8.
  • the stop means 42 comprise, on the ratchet 18, at at least one abutment heel 49 ', which, integral with a lateral wing 46 of ratchet 18, protrudes on a square back 54 of this one, downstream of the middle part 45 of the ratchet 18, at distance from this middle part 45, on the other side of the recess 43 relative to the securing notch 24.
  • each of the wings side 46 of ratchet 18 has a square back 54 on which projects a stop heel 49 '.
  • the stop means 42 comprise, on the ratchet 18, at least one stop heel 49 ", which, integral with a lateral wing 46 of this ratchet 18, locally extends the latter, downstream of the middle part 45 of the ratchet 18, at a distance of this middle part 45, on the other side of the recess 43 by relative to the lashing notch 24.
  • each of the wings lateral 46 is extended, locally, in one piece, and according to its plan, by a 49 "stop heel.
  • the recess 43 then opens towards downstream, i.e. in the direction opposite to the middle part 45.
  • the lashing notch 24 is formed, as before, by a tongue 50.
  • Figures 13 and 14 it is formed directly through the relevant transverse edge of the part median 45.
  • the lashing notch 24 remains, as before, continuous.
  • FIG. 14 it is crenellated, and therefore segmented, which reduces its useful length and thus minimizes the risk of shearing for the strap 11.
  • both 49 "stop heels are elongated perpendicular to this lashing notch 24.
  • the thickness of this strap 11 spared by the securing notch 24 is identical from one clamp 12 to another, whatever that is the total thickness of this strap 11.
  • the ratchet 18 has only one side wing 46, and its median part 45 extends cantilevered from of it.
  • Figure 15 it has a cross stop 49, which extends over the entire length of the lashing notch 24, like that described with reference to FIGS. 1 to 7, 9 and 10.
  • this abutment crosspiece 49 could have a reduced length, like the sections 53 described in reference to figure 8.
  • the ratchet 18 carries a stop heel 49 ", of the type described with reference to FIGS. 12 to 14.
  • the lashing notch 24 is formed by a tongue 50.
  • the bore 47 of the lateral wing 46 of the ratchet 18 is extended by a socket 47 ′ coming from routing on the side of the middle part 45.
  • the stop means 42 intervene circumferentially upstream of the securing notch 24 in the direction of engagement of the strap 11.
  • ratchet 18 In the embodiment shown, they include as above, on the ratchet 18, a cross stop 49, which, integral with the lateral wing 46 of this ratchet 18, extends at the edge of the recess 43 thereof, but this abutment crosspiece 49 then extends on the upstream side of this recess 43, this one sharing the middle part 45 of the ratchet 18 in two portions 45 ', 45 ", one upstream, the other downstream.
  • the stop cross member 49 protrudes slightly on the middle part 45 of the ratchet 18.
  • the cross member stop 49 is circumferentially in continuity with one portions 45 ', 45 "of this middle part 45.
  • the lashing notch 24 is formed by a tongue 50 extending obliquely the portion 45 "downstream of the portion median 45 of ratchet 18, and this has two wings side 46.
  • the following ratchet 18 the invention may, in all of its embodiments, be a simple piece of sheet metal suitably cut and folded.
  • the cutting means can intervene systematically, from that the strap engaged with the moving part is the subject of a sufficient traction.
  • these means of cut can be static.
  • stop means provided according to the invention can intervene at a distance from the bearing surface associated with the ratchet.
  • the moving part can be mounted movable in translation on this fixed part.
  • the application of the invention is not also not limited to traction and cutting clamps of the type more particularly described and shown, but extends on the contrary more generally to all the clamps having at least the function, even if only, of allow traction on a strap.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Package Frames And Binding Bands (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Buckles (AREA)
EP19970402071 1996-09-06 1997-09-05 Werkzeug zum Spannen eines Bandes, insbesondere eines Kabelbandes Expired - Lifetime EP0827909B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9610907 1996-09-06
FR9610907A FR2753118B1 (fr) 1996-09-06 1996-09-06 Pince de traction pour laniere, en particulier pour collier de serrage

Publications (2)

Publication Number Publication Date
EP0827909A1 true EP0827909A1 (de) 1998-03-11
EP0827909B1 EP0827909B1 (de) 2002-12-04

Family

ID=9495525

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19970402071 Expired - Lifetime EP0827909B1 (de) 1996-09-06 1997-09-05 Werkzeug zum Spannen eines Bandes, insbesondere eines Kabelbandes

Country Status (3)

Country Link
EP (1) EP0827909B1 (de)
DE (2) DE827909T1 (de)
FR (1) FR2753118B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3084604A1 (fr) * 2018-08-01 2020-02-07 Legrand France Pince de serrage d’un collier de serrage

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561475A (en) * 1984-03-30 1985-12-31 Milton Hinden Universal strap tightening tool
FR2585610A1 (fr) * 1985-07-30 1987-02-06 Legrand Sa Pince de traction et de coupe pour laniere, en particulier pour collier de serrage
US4947901A (en) * 1989-02-06 1990-08-14 Malco Products, Inc. Strap tensioning and cut off tool
US5372166A (en) * 1993-07-26 1994-12-13 Lai; Chang-Keng Tie-wrap tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4561475A (en) * 1984-03-30 1985-12-31 Milton Hinden Universal strap tightening tool
FR2585610A1 (fr) * 1985-07-30 1987-02-06 Legrand Sa Pince de traction et de coupe pour laniere, en particulier pour collier de serrage
US4947901A (en) * 1989-02-06 1990-08-14 Malco Products, Inc. Strap tensioning and cut off tool
US5372166A (en) * 1993-07-26 1994-12-13 Lai; Chang-Keng Tie-wrap tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3084604A1 (fr) * 2018-08-01 2020-02-07 Legrand France Pince de serrage d’un collier de serrage

Also Published As

Publication number Publication date
DE69717567T2 (de) 2003-04-10
DE69717567D1 (de) 2003-01-16
FR2753118A1 (fr) 1998-03-13
EP0827909B1 (de) 2002-12-04
FR2753118B1 (fr) 1998-11-20
DE827909T1 (de) 1998-07-16

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