EP1211760A1 - Hand-Crimpwerkzeug mit abnehmbarem Zufuhrmagazin - Google Patents

Hand-Crimpwerkzeug mit abnehmbarem Zufuhrmagazin Download PDF

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Publication number
EP1211760A1
EP1211760A1 EP01403026A EP01403026A EP1211760A1 EP 1211760 A1 EP1211760 A1 EP 1211760A1 EP 01403026 A EP01403026 A EP 01403026A EP 01403026 A EP01403026 A EP 01403026A EP 1211760 A1 EP1211760 A1 EP 1211760A1
Authority
EP
European Patent Office
Prior art keywords
hand tool
support
crimping
tool according
charger
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.)
Withdrawn
Application number
EP01403026A
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English (en)
French (fr)
Inventor
Robert Gautheret
Laurent Rouiller
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.)
Facom SA
Original Assignee
Facom SA
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 Facom SA filed Critical Facom SA
Publication of EP1211760A1 publication Critical patent/EP1211760A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/042—Hand tools for crimping
    • H01R43/045—Hand tools for crimping with contact member feeding mechanism

Definitions

  • the invention relates to a hand crimping tool end caps, in particular of the pliers type, comprising a body extended by a first branch forming in particular a handle, and a second branch forming in particular a handle, articulated on the body, a crimping chamber being provided in said body and opening towards the outside of the body by a lead-in insertion passage electric in said crimping chamber, a channel being formed in said body and / or said first branch, a tip loader at least partially arranged and removably in said channel so as to lead into the crimping chamber, the charger comprising at least two stores adapted to each receive a plurality ferrules.
  • mouthpiece is understood here naturally as a crimping wiring accessory, in the general sense, which can designate for example a terminal.
  • the invention is particularly applicable to end caps with insulating flange for connection of a flexible conductor provided with an insulating sheath, used generally in industrial electrical appliances operating at low voltage.
  • Such tips are very widely used and are notably defined in standardization documents (French standard NF C 63-023).
  • an industrial type terminal block can have at least six types of connection depending of the nominal cross-section of the conductor used, and therefore bits, which requires from the operator, when crimping operations, i.e. the use of several crimping pliers, a frequent change tip loader and therefore repeated operations of mounting / dismounting of the magazine on the clamp.
  • the amount of material used is a source of confusion and error in the operations of crimping and represents a prohibitive cost.
  • a main object of the invention is to remedy these disadvantages by simplifying the operator's task when it has to switch from one type of nozzle to another, and reducing the number of operations required for this change.
  • the charger is mounted movable in the channel between at least two positions in which only one of the stores opens next to the passage, and said tool comprises locking means and selection adapted to keep the charger in the channel, selectively in one of said positions.
  • the mobile support has a pin cooperating with a bent substantially U-shaped pin so as to present at least two retention notches of the pawn, defining said at least two positions of the support.
  • the invention also relates to a tip charger for hand crimping tool of the type described above, said charger being in the form of a bar elongated in a main direction, in which a series of tips of the same dimensions, connected together, is held between a pair of substantially parallel walls forming a store, said series of end pieces being able to slide jointly and severally, the main direction between the said walls, characterized in that it has at least two such stores extending parallel and adapted to receive each a plurality of different tips.
  • the tip loader has a hooking member intended for cooperate with a complementary organ of a support charger mounted in the tool.
  • a tip 1 has essentially a cylindrical insulating sleeve 3 integral a coaxial conductive cylindrical sleeve 5, of smaller diameter.
  • the insulating sleeve 3 is intended to receive the insulating sheath of an electrical conductor while the conductive sleeve 5 is intended to receive the core conductive and to be deformed on it during the operation crimping.
  • Tips 1 as used generally in crimping pliers in the form of elongated strips in which the tips 1 are arranged parallel to each other, oriented in the same way, the axis of the tips being orthogonal to the longitudinal direction of the strip.
  • Two consecutive end pieces 1 are connected by a film plastic 7, for example molded with sleeves insulators 3, the plastic film 7 joining two sleeves insulators 3 consecutive in the vicinity of their free end, in the minimum distance between the two cylinders.
  • plastic film 7 extends along the longitudinal direction of the strip, and that this film 7 is intended to be cut during the crimping operation a ferrule 1 on an electrical conductor, so that detach this end piece 1 from the strip.
  • the clamp 10 which has been shown is of the type multifunction since it allows to realize several types of operations, namely the cutting of a conductor electric electric, the stripping of one end of such electrical conductor, and the crimping of a ferrule on the electrical conductor thus stripped.
  • This clamp 10 comprises a central body 12, of which are joined on the one hand a first handle 14, the cross section is roughly shaped quadrangular and tubular, and secondly, a first jaw 16.
  • a second handle 18 On the body 12 is articulated a second handle 18 connected to a second jaw 20.
  • the second handle 18 is pivotally mounted on the body 12 around a pivot axis Y-Y, in a plane P which will be defined as being the clamping plane of the clamp 10.
  • Each of the handles 14, 18 is integral with a cutting blade 22, 23 to cutting edge intended, when the handles 14, 18 are tight, to cut an electrical conductor placed between they.
  • the two jaws 16, 20 cooperate with each other and are associated with a mechanism known per se which allows tightening and stripping a conductor electric insulated.
  • the body 12 has a hole 25 formed transversely in a wall of the body 12 and giving access to a crimping chamber 27 formed in the body 12, in which the crimping operation is carried out.
  • the hole 25 will be better visible in Figures 3, 4 and 5, since a partial tearing of the wall of the body 12 was produced for the purposes of the description of the crimping, which will be made with particular reference to the Figure 6 which is an enlarged detail of Figure 2.
  • the handle 14 is provided at its free end an opening 31 through which is engaged in the handle 14 a tip loader 33.
  • the handle 14 constitutes a hollow body forming a channel, so that the tips 1 present in the charger 33, when it is in place, present themselves at the entrance of the crimping chamber 27, opposite the hole 25 by which the operator can introduce one end of electrical conductor in the first end 1 of the strip, and bring it into the crimping chamber 27.
  • the hole 25, which is opposite the crimping chamber 27, is extended towards the free end of the handle 14 by a oblong light 35 allowing to visualize several consecutive end pieces of the same strip, and thus give a information to the operator on the number of tips remaining in the charger.
  • FIG. 3 On which the clamp of Figure 2 has been shown in perspective exploded to clearly show the charger 33, the channel 38 formed in the handle 14, as well as a support charger 40 mounted in channel 38 and intended to receive the charger 33 removably.
  • the charger 33 has the general shape of a bar straight elongated in a main direction coinciding with the main direction of a band 1.
  • the charger 33 comprises in the example represented two solidarity and superimposed stores 42, 43 each defined by two parallel walls 42A, 42B, 43A, 43B, each pair of walls 42A, 42B, 43A, 43B forming a respective straight rail in the longitudinal direction of the charger 33.
  • each pair of walls 42A, 42B, 43A, 43B has a different spacing suitable for receiving a tape bits 1 of different dimensions, as they have been described with reference to Figure 1. However, this spacing can be chosen identical, it being understood that for a given spacing corresponding to a size bits, several types of size tips can be loaded in the store.
  • One 42A, 43A of the walls of each store 42, 43 is integral with a curved metal blade 45, 46 of which a bent part is intended to be inserted between two consecutive nozzles 1, so as to constitute a means sliding stop in the respective magazine 42, 43 a strip of end caps.
  • These walls 42A, 43A constitute the outer walls of the charger 33.
  • a locking window 49 of the charger 33 in the support 40 is provided in one of these walls 43A.
  • This window 49 constitutes an organ attachment intended to cooperate with an organ complementary formed by an elastic tab 51 of the support 40 provided with a lug.
  • the support 40 is formed by an elongated slide, extending when mounted in channel 38, from the free end of the handle 14 to the crimping 27. At one of its ends coinciding with a free end region of the handle 14 is formed a perforated plate 53 ensuring a pivot connection with a pin 55 protruding into channel 38 transversely to the clamping plane P, i.e. transversely to the direction of scrolling of the nozzles 1.
  • the support 40 can thus pivot in channel 38 around the common axis Y'-Y 'of the journal 55 and the perforated plate 53.
  • the channel 38 On the end of the handle 14 facing towards the crimping chamber 27, the channel 38 has a wall toothed 59 forming two notches 61, while the support 40 is integral with a toothed plate 63 at its end opposite the perforated plate 53.
  • the toothed plate 63 has a tooth 65 facing the notches 61, and adapted to cooperate with them to define two positions of the support 40 around the axis Y'-Y '.
  • the brochure 63 also has a tongue 66 urging elastically the toothed plate as a reminder by pressing on the body 12.
  • an operating member 67 is provided. in the form of a button which projects from the clamp 10 by an oblong hole 69 passing through, formed in the handle 14, by being integral with the toothed plate 63 and linked to the support 40.
  • the support 40 is provided with an elastic blade 71 which bears on the bottom of channel 38 by producing on the front part of support 40 an elastic force directed upwards.
  • Figures 4A and 4B illustrate a second mode of realization of the invention which differs from the first by the means for blocking the charger in either of his positions.
  • the two notches 61 and the toothed plate 63 are replaced by a part 164 in steel wire for example, in the shape of a U-shaped pin reversed.
  • the pin is positioned in channel 38 instead and places notches 61 of the first embodiment.
  • a branches of the U and part of the bond to the other branch is integral with body 12 while the other branch is free and has two successive camberings defining a narrowing of the spacing between the two branches and thus two notches 161.
  • FIG 5 there is shown a first configuration of clamp 10 and charger 33 according to the invention, in which the charger is located in one of the two stable positions defined by the notches 61.
  • the magazine 43 in which is housed a end strip, shown large, opens out opposite hole 25 corresponding to the location of the crimping chamber 27, and also facing the oblong light 35 (but this does not appear on this Figure).
  • Figure 6 the configuration is shown allowing a crimping operation to be carried out with the end caps housed in the magazine 42, that is to say with tips shown small.
  • the support 40 is in this case placed in another angular position around of its pivot axis Y'-Y 'and the tooth 65 cooperates with the other notch 61. This position allows the opening of the store 42 opposite hole 25 overlooking the bedroom crimping 27.
  • the operator has the possibility of pressing button 67 up or down bottom to rotate the support 40 and securely the loader 33. It can also directly maneuver the portion of the charger 33 protruding from the free end of the handle 14. Indeed, the charger 33 has a length important; therefore, when the charger is locked by cooperation of window 49 and tab elastic 51 in the support 40, it projects from the clamp 10 through the insertion opening located at the free end handle 14.
  • This protruding length of the loader 33 by compared to handle 14 also allows an operator easily extract the charger 33 from the support 40 and the handle 14, by simple pulling, the locking means constituted by the window 49 and the elastic tab 51 being releasable means, with a pulling force relatively small.
  • Figure 7 shows a detail of Figure 2 corresponding to the crimping chamber 27.
  • a crimping mechanism is disposed in the crimping chamber 27. It comprises a upper part 81 fixed relative to the body 12, this fixed part 81 in the form of an anvil hollow, whose concavity is turned towards the tip 1A at crimp.
  • Anvil 81 is of dimensions adapted to several tip sizes 1, and receives the conductive sleeve 5 of end piece 1, which conductive sleeve 5 must be deformed on the conductive core of the electrical conductor.
  • the crimping tool also includes a movable lower part 83 to which the functions, and this in a conventional way, of film cutting plastic 7 and punching the conductive sleeve 5.
  • the moving part 83 is driven in a movement essentially in translation towards the anvil 81, under the action of a link 85 articulated around an axis Y '' - Y '' transverse to the clamping plane P and to the direction of travel of the end strip.
  • Figure 8 is a perspective view of the clamp 10, in which there is shown, outside the chamber crimping 27, the movable part 83 of the crimping tool and the link 85 for driving this movable part 83.
  • the connecting rod 85 has two branches 88, 89 substantially orthogonal, the link 85 being pivotally mounted around of the Y axis '' - Y '' on a pin 91 secured to the body 12.
  • the first branch 88 of the link 85 has at its free end a notch in U 93 which engages on a pin complementary cylindrical 95 integral with the second handle 18, the pin 95 being able to slide in the notch 93 and cause the rotation of the link 85 when an operator brings the two handles together or away from them 14, 18.
  • the second branch 89 of the link 85 comprises also at its free end a notch in U 97 receiving a complementary shaft, belonging to the mobile part 83, and extending parallel to the Y '' - Y '' axis of the link 85.
  • This tree has been designated under the reference 99 and has a central part 99A (shown in Figure 9) which cooperates with the notch 97.
  • This movable part 83 comprises a punch 101, a cutting member 103 and a centering member 105.
  • the punch 101 can be produced in one piece or, as shown, in two rigidly assembled pieces, at know a support 110 on which is fixed a serrated blade 112 forming the pressure member of the punch 101 on the conductive sleeve 5 of the crimp fitting.
  • the cutting member 103 has a base 114 and a tapered blade 116 fixed to said base 114.
  • the blade tapered 116 is elongated and extends, in the position shown, substantially parallel to the blade serrated 112, one end of the tapered blade 116 being embedded in the base 114, while the free edge 118 is configured as a cutting edge.
  • Base 114 and support 110 of the punch 101 are linked to each other by through shaft 99, so the organ of cutout 103 has a freedom from the punch 101 angular deflection around the shaft 99, i.e. around the axis Y '' '- Y' '', while they are linked in translation.
  • the centering member 105 is formed by an L-shaped block mounted to slide on the base 114 parallel to the tapered blade 116.
  • a first branch 121 of the centering member 105 has a groove 123 complementary to the tapered blade 116 so that it constitutes a guide for the sliding of the centering member 105 relative to the base 114, the tapered blade 116 being at least partially inserted into the groove 123 by one of its edges lateral, when the centering member 105 is in place on the base 114.
  • the centering member 105 is positioned on the base 114 of the cutting member 103 in the following manner: the base 114 has a recess cylindrical made parallel to the tapered blade 116, which receives a complementary finger 125 projecting from the lower part of the centering member 105, the finger 125 being surrounded by a spiral spring 129 which rests on the one hand around or in the bottom of the recess of the base 114, and on the other hand against the underside of the centering member 105.
  • the second branch 131 of this member transverse to the tapered blade 116 and to the direction of movement of the punch 101, comprises two projections forming stops 133 placed on either side of a lateral edge of the crenellated blade 112, the two stops 133 being intended to limit the angular movement of the assembly formed by the cutting member 103 and the member centering 105 relative to the punch 101, around the axis Y '''-Y''' materialized by the shaft 99.
  • the limit positions thus defined form a first position offset angularly towards the rear by an angle ⁇ positive m , explained below, relative to the direction of the punch 101, and a second direction more strongly offset towards the rear relative to this punch, by an angle ⁇ M > ⁇ m .
  • the first branch 121 of the centering member 105 present, at its free end facing the anvil 81, a surface inclined plane or slightly concave 141 respectively, intended to bear on the respective insulating sleeve 3 each of the two consecutive end pieces.
  • the two surfaces 141 converge towards anvil 81.
  • the punch 101, the centering member 105 and the tapered blade 116 are at rest below the anvil 81 and the crimping tip 1A, which is brought in progressively by the operator by means of the electrical conductor to be crimped in the crimping chamber 27, under the anvil 81.
  • the tapered blade 116 and the member centering 105 have a longitudinal axis angularly offset from that of the punch 101 (shown here vertical) by any angle ⁇ A between ⁇ m and ⁇ M.
  • This angle ⁇ A of offset in the rest position of the movable member 83 essentially depends on the position in which the clamp is held by the user, and has no effect on the rest of the crimping operation of the so that it can vary freely between the two values ⁇ m and ⁇ M.
  • Figure 10B shows the extreme position advancement of the end strip, the crimp end 1A being here brought into abutment on a bottom wall 143 of the crimping chamber 27. It is in this position of the strip of tips that the user usually operates the clamp.
  • Figure 10D illustrates a next phase of the clamping operation, in which the pressure of the blade crenellated 112 of the punch 101 on the conductive sleeve 5 of the tip 1A causes the latter to take a position stable wedged at the bottom of the anvil 81.
  • any effort additional exercised to bring the handles 14, 18 causes penetration of the reliefs of the crenellated blade 112 in the conductive sleeve 5, and a displacement towards the anvil of the centering member 105 and of the tapered blade 116.
  • the orientation of the centering member 105 and of the tapered blade 116 here represented, defines an offset angle ⁇ E generally different from the initial angle ⁇ A, since the end caps to be crimped have a junction zone imposing on the member centering 105 a position generally different from the orientation corresponding to the initial offset ⁇ A.
  • the centering 105 is brought into abutment on the insulating sleeve 3 of two consecutive tips. Continuing this movement of bringing handles 14, 18 together, we compress the spring 129 under the effect of the additional joint movement of the tapered blade 116 and the serrated blade 112.
  • the tapered blade 116 follows so completes the translational movement of the serrated blade 112. Consequently, the tapered blade 116 is extracted from the groove 123 of the centering member 105 and cuts the film plastic 7 separating two consecutive end pieces, the film plastic being placed, thanks to the free travel of the centering member 105 relative to the punch 101, in look at the cutting edge 118 of the tapered blade 116.
  • the end position of the race is shown the tapered blade 116, in which the cutting edge 118 completely cuts the plastic film 7.
  • the invention which has just been described allows, by simple mechanical means, to make a clamp crimping of tips of great flexibility of use.
  • An embodiment of the invention has been described in which the tip loader 33 has two magazines adapted to receive different types of tips, but it would be easily conceivable to design a clamp crimp and associated charger, such as the charger has more stores for bits different types, this charger can take a number corresponding positions in the clamp so that selectively supply the crimping chamber.
  • the crimping pliers thus produced offer thus great flexibility of use since the operator can very quickly and by a very simple operation change type of end caps ready to be crimped.
  • the invention saves considerable time on routine wiring operations in the middle industrial, without significantly increasing the cost of tool manufacturing.
  • the invention also makes it possible to produce a precise cut of the plastic film separating end caps band, avoiding the operator to adjust manually the angle of offset of the cutting member relative to the punch, each time the operator changes type ferrules.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
EP01403026A 2000-12-01 2001-11-26 Hand-Crimpwerkzeug mit abnehmbarem Zufuhrmagazin Withdrawn EP1211760A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0015617 2000-12-01
FR0015617A FR2817672A1 (fr) 2000-12-01 2000-12-01 Outil a main de sertissage d'embouts comprenant un chargeur d'embouts amovible, et chargeur d'embouts associe

Publications (1)

Publication Number Publication Date
EP1211760A1 true EP1211760A1 (de) 2002-06-05

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EP01403026A Withdrawn EP1211760A1 (de) 2000-12-01 2001-11-26 Hand-Crimpwerkzeug mit abnehmbarem Zufuhrmagazin

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EP (1) EP1211760A1 (de)
FR (1) FR2817672A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022129088A1 (de) * 2020-12-17 2022-06-23 Weidmüller Interface GmbH & Co. KG Presswerkzeug

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2278180A1 (fr) * 1974-07-11 1976-02-06 Pisani Massamormile William Pince pour sertir des connexions metalliques sur des fils electriques
US4953384A (en) * 1988-02-05 1990-09-04 Legrand Magazine-type wiring accessory crimping tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2278180A1 (fr) * 1974-07-11 1976-02-06 Pisani Massamormile William Pince pour sertir des connexions metalliques sur des fils electriques
US4953384A (en) * 1988-02-05 1990-09-04 Legrand Magazine-type wiring accessory crimping tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022129088A1 (de) * 2020-12-17 2022-06-23 Weidmüller Interface GmbH & Co. KG Presswerkzeug

Also Published As

Publication number Publication date
FR2817672A1 (fr) 2002-06-07

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