DE1933182C - Device for stripping electrical conductors in the form of pliers - Google Patents

Description

after cutting through the insulation to

management of the stripping process relative to each other

to be pivoted, marked ao

by combining the known per se The invention relates to a device for reducing that the constrained guides (86, 88) are designed as isolating electrical conductors in the form of curved guides (86, 88) and that of a pair of pliers, which may also be used as automatically moving parts the clamping and stripping mechanism working power-operated stripping device move in straight guides. 25 forms can be, with two operating levers in which

2. Device according to claim 1, characterized in that the wire is pinched, incised and indicates that the arch guides (86, 88) stripping the insulation and unclamping the Center points (98; outside the stripping lever wire runs in an inevitable work sequence, and (12, 14). two pivotable about a common axis, am

3. Apparatus according to claim 1 or 2, da- 30 wire or stripping through the insulation characterized in that the sheet guides are provided at, one of which at actuation (86. 88) are designed as slot guides. the intended end of the insulation

4. Device according to claim 1, characterized by clamping and identifying the other as a cutting unit, that the upper clamping and bracing is designed to cut off the insulation, strip parts (58, 76) stationary and the lower 35 and both with the actuation lever via forced clamping and stripping members (62, 78) are coupled over the beta guides for after cutting Control lever (18, 20) slidable on the insulation strip for carrying out the stripping control lever (12,14) are arranged. ges to be pivoted relative to each other.

5. Apparatus according to claim 1, 2 or 3, there- for known devices for stripping characterized in that for coupling the loading 40 or stripping tongs of this type (Belgian patent actuating lever (18, 20) with the scraper levers font 526 515, British patent specification 498168 (12, 14) running in the sheet guides (86, 88) and United States patents 1730090; 2,553,316; Guide pins (90, 92, 94, 96) are provided. 2,179,581; 3 128 652), which are based on the abiso-

6. The device according to claim 5, characterized in that gelatinous wire to be moved parts of the terminal, that the guide pins (90, 92, 45 and stripping tools are directly connected to the operating levers 94, 96) in the arch guides (86, 88) running leg connected. As a result, they hit diagonally Have rollers (90, 92). on the wire and create in this blackness

7. Device according to one of the preceding points by a kind of buckling stress, NEN claims, characterized in that the wires stripped in this way and which are in Arch guides (86, 88) in the operating levers 50 provided in the aerospace industry (18, 20) are formed. can no longer meet requirements. Because of

8. The device according to claim 2, characterized in that the same structural feature is known in these that each of the arch guides (86, th stripping tongs when moving the lower 88) in two closed path sections (86 clamping and stripping parts also no precise closing and 88) is subdivided, the movement of these parts in the same arc by 55 possible, the aforementioned type of the same buckling stress lying outside the lever (12, 14) is indeed with a different one Run center. Avoid the type of wire stripping pliers in which the

9. Device according to one of the preceding parts of the clamping and stripping tools nen claims, characterized in that they are moved in straight guides (British Stripping levers (12, 14) have a U-shaped profile (patent specification 1070100). Here is this movement ben and for mutual articulated connection by a Hemittels pivotable about a pivot pin of a bolt (36) with boreholes causes what due to the required lever height Approaches (32, 34) have. lengths to a relatively expansive width of the work-

10. Apparatus according to claim 9, characterized in that it leads. Since these devices are primarily used as indicates that 65 manually operated tools are used to generate the required Chen frictional resistance against the pivoting movement is limited, however, their structural size.

When the stripping lever (12, 14) goes into the joint, on the other hand, the object of the invention is to

point disc springs (42) are arranged. reasons to use a device of the type mentioned at the beginning

_z "create, in which the described buckling stress an opening * - and ^ SchHeßbew ^ g« n ^ urchto-

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arguments are interpreted as ecological disturbances sina unu mc _αα ~ »* ~~ ..... -« · -. ,, j

Moving parts of the clamping and stripping mechanisms, cut to size ^ ^ha ^ " ^η ° _wesentucneB

witness to move in straight guides. The ^^^ f ^^^^ lZtaAt a and

A major advantage of the equally misformed instead of the present invention and sunny ^

Device for stripping off insulation is io the same tool.herbaren Im ^e ^ ⁿ . _{7 to 9}

to see that they diuch a Präzisionsinstru- ^ά ^ ψ ™ Χ? ^ ϊ ££% "Ζ ^ η & Form

ment is created as a very precise illustration of his essence

Working method is ensured, and on the other hand, since that of a U-Proftl ^ J ^^^. ^ SSZ

inventive device entirely of punching two legs "f"! ™ "* _m * _e i _{ner B} oh-

parts can be ordered and thus, despite the high priority, each of the stripping levers 12 141 are jo. ^ " ^one ^

“The mode of operation is very robust and also withstands the toughest treatment to accommodate a bolt 36 (Mg.>) , Its overall structure is provided with heads 38 arranged on both sides

_o _ 30 bar according to the invention applied in point 16, oowoni uics «

Arrangement and design of the arch guides is not absolutely necessary. To prevent, is also a substantial reduction in the amount of lugs 32, 34 moving inward, and total weight reached, while at the same time by thus maintaining the effect of the disc springs 42 Forced movements of the parts can be obtained inside the stripping lever 12, 14 precise engagement and pivoting is ensured. 35 a spacer sleeve 44 is arranged on the bolt 36. Advantageous further developments of the tool as shown in FIGS. 7 to 9 can be seen on the

According to the invention, the inner surface 46 of the web 26 identified in the claims is a number of draws. Projections provided. For example, there are two

The following is an embodiment of the Er projections 48 in the upper section and three Vorfindung explained in more detail with reference to the drawings. There were 40 jumps 50 arranged in the lower section. the shows the top section is through from the bottom section

Fi g. 1 a side view of a stripper, side-open slots 52 separated, which the ar-

F i g. 2 a side view of the representation of work space for the clamping and stripping tools bil-Fig. 1, the, duich which the wire to be stripped to the

3 shows a tendon along the line TII-IH through which the stripping process is carried out. The pre-fi G. 2 on an enlarged scale, spiünge 48 fig.-n centering surfaces for the attachment

4 shows a section through the upper part of the upper stationary clamping and stripping parts 58, Pliers of FIGS. 1 and 2 on an enlarged scale, 76, and the lower projections 50 form sliding surfaces

Fig. 5 a section corresponding to FIG. 4 in click-n for guiding the over the actuating lever another working position of the sequence of movements, 50! S, 20 displaceable lower movable clamping-F i g. 6 is a side view of the clamping and stripping and stripping cones 62, 78, whereby under Hcrabsetstreifteüe on a larger scale, the friction in the movement of a movement

F i g. Figure 7 is a front view of one of the stripping levers, low tolerance guidance is achieved. For the F i g. S is a side view of the in F i g. 7 linear guidance of the lower clip-on and clip-off lights Stripping lever, 55 strip parts 62, 78 are still by welding or

9 shows a plan view of the manner corresponding to that in FIGS. 7 and 8 on the inner surface 46 The scraper lever and the web 26 fastened screws 54 and 56 are provided.

Fig. 10 see a side view of the upper portion arranged inwardly protruding, one of the two operating levers. The upper stationary clamping and disconnection

The device 60 shown in the drawing strip parts 58, 7 (5 by means of the screws 54 widened two symmetrical stripping levers 12, 14, the very deadened nuts 68 against the projections 48 geum the point 16 are pivotable. Two actuators while the movable clamping and release levers 18, 20 serve to straighten the stripping levers 12 scraping parts 62, 78 on the lower screws 56 and 14 are guided in an open and a closed position around linig, wherein in the illustrated to pivot point 16. The stripping lever 12 65 embodiment the lower clamping and stripping carries a pair of clamping ropes 22, the stripping lever, parts 62, 78 on the screws 56 in a straight line 111 14 a pair of stripping members 24. Both of the Weiv 'illustrated in FIG. 'veubi! Klcmmtcilc 22 as well as the stripping parts 24 are for this purpose are in the IUm. m u

5 6

Projections 50 adjacent parts of the clamping and manure is the actuating lever 18, 20 with the stripping parts 62 78 to the direction of displacement parallel streifhcbcln 12, 14 coupling forced guide formed in slots 74, in which the screws 56 in the form of arched guides 86, 88 as in Slides 70, if necessary with the interposition of spacer slots 82 and 84 of the U-profile. The special configuration die- 5 86, 88 formed. Fuhser clamping and stripping parts and their arrangement are fitted into the slots 86, 88, with bolts 94 and 96 running in these rollers 90, 92 which are fastened to the bolts apart from the fact that the movable halves 62, 78 of the clamping and stripping tools that reach through the actuating levers 18, 20. The arch guides 86, 88 describe more 22, 24 along the stripping levers 12, 14 in the direction of the io or less the same arch, for example, the stationary clamping and stripping parts 60, 76 pivot around the actuating lever located outside the pliers rectilinear point 98 is approximated. The actuating lever 18 must be designed to be slidable in order to remove the (see. Fig. 4). is pivoted about this point, grazing wire end to vertical force application so that this point as a "shadow point" beeew guarantee if the parts 62, 78 could be drawn by a 15, this pivoting movement of the appropriate coupling to the operating lever operating lever 18, 20 around the outside for clamping and cutting of the insulation can pivot points 98 limited by the stops as ausgebilderung in the direction of the fixed parts 60, 76 th moved ends of the web portions 86 and 88 _who will be _{(j s.} Preferably past 18 20 may for assembling and

To carry out this sliding movement, the movable clamping and stripping parts 62, 78 with a section of a recess or offset section of the actuating levers 18, 20, which will be provided later, can be seen in the upper track.

To be described in more detail, coupling forced guidance Furthermore, the actuating levers 18, 20 protrusions 86, 88 are provided. According to the invention, directions are indicated by means of which they are coupled to the clamping and stripping parts 62, 78 , which can be moved in the longitudinal axis of these constrained guides 86, 88 _{as arch guides 5 (} 00 "" jgjOjiijjg ^ whose arches are connected to 98 at ur> n. As, for example, in the preferred embodiment of the invention, projections 102 and 104 lie on the legs 82 and outside the stripping levers 12, 14. Through 84, these arch guides 86, 88 become in recesses 106, 108 (FIG. ¹⁾ of the coupling can slide in the parts 62,78 in order to move the ends of the movable clamping and stripping parts at the point between the actuating levers and the large arches in a linear motion in a circular manner Web moved, which rod displacement direction to implement. Furthermore, the tial to the displacement direction of the movable return movement of the stripping device in the clamping and stripping parts 62, 78 lies. In order to ensure the non-starting position, a spring, for example a force component 35 lying in the direction of displacement, is used for the return spring 110, 112 . to keep as small as possible during the displacement, the stripping device described has M-

thus the arc on which this coupling effect and mode of operation is based on: point moved, be as large as possible, with the straight- When the operating levers are pressed together

linearity of the movement of the clamping and stripping parts are first of all created in the longitudinal axis \ cr-62 78 itself in that a displaceable clamping and stripping parts 62, 78 can be pushed within the point of application of the projections 102 and 104 in Direction of the location is provided. This as large sheet as possible is shifted most clamping and stripping parts 58, 76, so by the constrained guides as sheet guides 86 that they are strictly guided initially the gripping. Klem-88 ensures that, in the preferred embodiment and cutting through the insulation, the shape of the solution is not limited by limiting the structural 45, according to which the abstrcifUcbci, when the rollers 90, the size of such a tool is influenced, 92 the ends designed as stops the Bogcnda the positive guides have reached an arc around outside guides 86, 88 , describe through another center point of the tool. Pressing the actuating lever apart - for this purpose, the forced guidance is to be folded in the dimensions, which means that it is necessary to isolate it from the curvature of the arch. During the demonstration, 50 wire is withdrawn. The clamping force of the embodiment according to the invention is retained in a limited size because of the reinforced device, the arched guides 86, 88 are formed as a pressure on the actuating lever through the gen-shaped slots 86, 88 , whose known manner is graduated in size Speaking side surfaces ensure the forced guidance of the sliding movement provided with cutting openings 79 in these dimensions. 55 cutting and stripping part 78 on the also with

The actuating levers 18, 20 are fixed cutting and guiding elements with similarly designed cutting openings, so that in the following only one stripping part 76 is described and thus on the stripping lever. is transmitted, thereby ensuring that the

Such an actuating lever is also formed by wire to be stripped, not reinforced by a stamped part and has a U-shaped compressive force that is damaged. Then a vermin cross-section, the opening of the U-profile changing the pressure force, so that it is directed inwards. The U-profile consists of actuating levers 18, 20 by a return spring, a web 80 (Fig. 10) and two legs 82 and, for example, the spring HO, separated from each other 84. In the preferred embodiment of the ErTm-.

For this purpose 2 sheets of drawings

Claims (1)

11. The device according to claim 9, characterized in that a spacer sleeve (44) is arranged around> the bolt (36) 1. Device for stripping electrical 12. Device according to one of the previous lead wires in the form of pliers with 5 NEN claims, characterized in that as : two actuating levers in which the clamping Fühnragsflächen for the clamping and Ab-trei- the wire, the cutting and stripping of the parts (22, 24) in one piece with the stripping levers Insulation and the unclamping of the wire in (12, 14) formed projections (48, 50) are provided. inevitable sequence of work is running, and two are around. > a common axis pivotable on the wire io 13. Device according to one of the preceding or stripping levers acting on the insulation, characterized in that on are provided, one of which, when actuated, Ctx inner surface (46) of the U-profile of the wiper supply of the pliers the intended end of the Isolie- at (12,14) for holding and guiding the clamping ι tion by clamping and the other than and stripping parts protruding inward Cutting tool for separating the insulation 15 screw bolts (54,56) are arranged. j trained isi, and both are coupled to the operating levers via forced guides to