cable stripping tool

Abstract

Cable stripping tool (1) comprising: - an elongated body (2) defining a circular through cavity, - a positionable handle (4) in line with the body (2), and forming with the body (2) a rotationally fixed assembly, - a cutting blade (5) mounted on the body (2) in a rotationally fixed manner with the body (2) and extending at least partially inside the cavity of the body (2), - a radial opening (6) for waste removal, the handle (4) being a hollow handle forming with the cavity of the body (2) an axial passage for receiving the cable to be stripped.The body (2) is equipped with radially movable sliding cable clamping jaws (8) to protrude more or less into the cavity of the body (2), and the stripping tool (1) comprises a rotating drive element (9) with radial sliding movement synchronized with all the jaws (8), equipped with fingers (10) adapted to engage with at least one groove (11) of a jaw (8). Figure for the abbreviation: Fig. 1.

Description

Title of the invention: Cable stripping tool

[0001] The present invention relates to a cable stripping tool.

[0002] The invention can be applied generally to any body of revolution but is particularly relevant in the field of high-voltage electrical cables comprising concentric layers from their periphery to their core, the stripping function of which is to remove at least one of said layers, in particular the insulating layer. Stripping tools exist, as illustrated, for example, by international patent application WO2006 / 027491. These stripping tools are quite bulky around the cable, which can pose problems in confined spaces or on three-core cables. Less bulky stripping tools also exist, but they are not versatile.Indeed, a cable is characterized by its tension, which determines the thickness of insulation to be removed during stripping; its cross-section, which influences the clamping diameter required to hold the cable in position during stripping; and the length of cable to be removed during stripping. Versatile stripping tools capable of handling these three settings exist, but they require a set of sockets, each corresponding to a specific cable cross-section and tension. This results in a tedious assembly and disassembly of the stripping tool, with the risk of losing one or more sockets.

[0003] An object of the invention is to provide a stripping tool whose design allows for a reduced size of said tool around the cable without affecting the simplicity of assembly and adjustment of the stripping tool.

[0004] Another object of the invention is to provide a stripping tool whose design offers in a simple way a possibility of versatility of the tool, this versatility being able to be obtained without a set of interchangeable parts.

[0005] Another object of the invention is to provide a stripping tool whose design allows switching from one cable to another cable with the same characteristics in a simple way without having to readjust the settings.

[0006] To this end, the invention relates to a cable stripping tool comprising: - an elongated body with a longitudinal axis delimiting an axial cavity with a circular cross-section, - a handle that can be positioned at one end of the body, in line with the body, and forming with the body a fixed unit that rotates around an axis parallel to the longitudinal axis of the body, - a cutting blade mounted on the body in a manner that is fixed to it, rotates with the body, and extends at least partially inside the body cavity, - a so-called radial opening for the evacuation of household waste on the body / handle assembly, the handle being a hollow handle delimiting an axial housing open towards the body to form with the through cavity of the body an axial passage for receiving the cable to be stripped introduced into said passage via the end of the body opposite that connected to the handle, characterized in that the body is equipped with cable clamping jaws mounted on the body movable by sliding in a radial direction to protrude more or less inside the cavity of the body and in that the stripping tool comprises a rotating drive element in radial sliding movement in synchronism with the assembly of jaws, in that this rotating element is mounted to rotate about an axis parallel to the longitudinal axis of the body, and comprises a plurality of fingers,in that each jaw comprises at least one groove open at each end into which a finger is able to be inserted to allow, in parallel with the movement of the finger from one end to the other of a groove under the action of a rotation of the rotating drive member in radial sliding motion in synchronism with all the jaws, a radial sliding motion of the jaw.

[0007] The tool's design allows for quick and easy clamping of the jaws around the cable, which can have a variable cross-section. The rotating element enables synchronous radial drive of the jaws without increasing the tool's overall dimensions along the radial direction to the cable. The inline design of the tool, with the handle, body, and rotating drive element sliding radially in synchronous motion, along with the jaws extending coaxially, reduces the tool's overall dimensions around the cable in a radial direction. The fact that at least one of the grooves is an open groove allows for a wide adjustment range with a reduced overall size.

[0008] It should be noted that by the expression "an axis parallel to the longitudinal axis of the body" we mean an axis which can be confused with the longitudinal axis of the body.

[0009] According to one embodiment of the invention, the radially sliding, synchronously rotating drive element of the jaw assembly is centrally hollowed out to form a ring. This radially sliding, synchronously rotating drive element of the jaw assembly is mounted on the body, preferably at the end of the body opposite the end connected to the handle. The central hollowed-out section of the radially sliding, synchronously rotating drive element of the jaw assembly allows the cable to be stripped through it. Ideally, the radially sliding, synchronously rotating drive element of the body is mounted on the body at the end of the jaw assembly opposite the end connected to the handle. This results in easy rotation of said rotating part.

[0010] According to one embodiment of the invention, the or at least one of the grooves of a jaw has a shape, or respectively a dimension, identical to the shape, or respectively the dimension, of the or at least one of the grooves of another jaw.

[0011] According to one embodiment of the invention, the or at least one, preferably each groove of a jaw is a curved groove with concavity facing towards the cavity of the body, said groove being a curved groove in the shape of a circular arc with an evolving radius which increases or decreases from one end towards the other end of the groove and, for each jaw, the radius of the or one of the circular arc grooves taken with respect to a center passing through the longitudinal axis of the body evolves within a range of dimensions identical from one jaw to another.

[0012] According to one embodiment of the invention, at least a part of the groove or one of the grooves of a jaw is arranged on a circle passing through at least a part of the groove or one of the grooves of each of the other jaws.

[0013] According to one embodiment of the invention, the fingers of the rotating drive element in radial movement sliding in synchronism with the set of jaws extend in a direction parallel to the longitudinal axis of the body, said fingers are arranged on the rotating drive element in radial movement sliding in synchronism with the set of jaws in at least two concentric circles and are arranged in a staggered fashion so that, for each jaw, at least one finger of the rotating drive element in radial movement sliding in synchronism with the set of jaws is always in contact with a groove of said jaw.

[0014] According to one embodiment of the invention, the cable stripping tool comprises a cable length adjustment element, said adjustment element being in the form of a stop disposed inside the axial housing of the handle, this stop being axially movable within said housing, this stop being equipped with at least one locking element in the stop position. The presence of such a stop, while contributing to the versatility of the stripping tool, does not in any way compromise the tool's compact size.

[0015] According to one embodiment of the invention, the cutting blade or one of the cutting jaws is coupled to one of the jaws, referred to as the blade holder, in a rotationally fixed manner. The blade is mounted on the blade holder jaw, which slides relative to the blade holder jaw in a direction parallel to the sliding direction of the blade holder jaw, thus varying the cutting thickness according to the relative position of the cutting blade and the blade holder jaw. Again, this arrangement, while contributing to the versatility of the stripping tool, avoids increasing the overall size of the stripping tool around the cable.

[0016] According to one embodiment of the invention, the cable stripping tool comprises a sliding drive element for the cutting blade in permanent contact with the cutting blade, this drive element being axially movable in a direction parallel to the sliding direction of the blade holder jaw in the direction of a widening or narrowing of the blade holder jaw to vary the distance between the blade and the blade holder jaw, furthermore being a rotating element equipped with at least one male, or respectively female, element capable of selectively cooperating with at least two complementary female, or respectively male, elements carried by the blade holder jaw to allow, in the nested state of the male and female elements, immobilization in a predetermined angular position of said sliding drive element of the cutting blade,each angular position corresponding to a predetermined distance or range of distances between the blade and the blade holder jaw,

[0017] According to one embodiment of the invention, the cable stripping tool is equipped with a return element for the sliding movement of the cutting blade drive element in a position close to the blade holder jaw.

[0018] According to one embodiment of the invention, the sliding movement drive member of the cutting blade comprises a threaded rotating shaft equipped with a tapped wheel in permanent contact with the cutting blade, this threaded shaft being equipped with a radial projection forming the male element of said drive member, this radial projection being able to insert selectively into notches of differentiated depth provided in the blade holder jaw, each notch forming a female element carried by the blade holder jaw.

[0019] According to one embodiment of the invention, the cable stripping tool includes an activatable / deactivatable system for immobilizing in angular position the rotating drive member in radial sliding movement in synchronism of the set of jaws with respect to the body.

[0020] According to one embodiment of the invention, the activatable / deactivatable system comprises at least one pin carried by said radially sliding rotary drive member in synchronous movement with the jaw assembly. The body comprises a plurality of holes into which the pin, or at least one of the pins, is able to be inserted. The pin or pins are movably mounted between a locked position in which they are inserted into a hole in said body and angular displacement of the radially sliding rotary drive member in synchronous movement with the jaw assembly is prevented, and an unlocked position in which they are disposed outside the holes. The system comprises a push button for each pin. This push button is movably mounted between a pressed position and an extended position, the extended position corresponding to the closed position. rusted of the associated pin.

[0021] According to one embodiment of the invention, the or at least one of the cutting blades comprises two cutting edges orthogonal to each other, one of the cutting edges extending parallel to the longitudinal axis of the body. Brief description of the drawings

[0022] The invention will be better understood upon reading the following description of exemplary embodiments, with reference to the accompanying drawings in which:

[0023] [Fig-1] represents a perspective view of a stripping tool according to the invention;

[0024] [Fig.2] represents an exploded perspective view of the constituent elements of a stripping tool according to the invention;

[0025] [Fig.3] represents in the form of schematic views the trajectory followed by the fingers in the grooves during the rotational drive of the ring to illustrate the radial displacement of the jaws;

[0026] [Fig.4] represents a schematic view illustrating the arrangement on the same circle of the grooves carried by the jaws;

[0027] [Fig.5] represents a partial perspective view of the ring and jaws to illustrate the positioning of the fingers of the ring in grooves of the jaws;

[0028] [Fig.6] represents a cross-sectional view of the ring and a partial perspective view of the body with the pins of the ring to illustrate the system of immobilizing in angular position of the rotating drive member in radial sliding movement in synchronism of the set of jaws with respect to the body;

[0029] [Fig.7] represents a perspective view of the blade holder jaw and the drive element in sliding movement of the blade in the exploded view of said elements;

[0030] [Fig.8] represents a cross-sectional view of the blade holder jaw and the drive element in sliding movement of the blade;

[0031] [Fig.9] represents a schematic view of the blade and a cable during the stripping of said cable;

[0032] [Fig. 10] represents, in perspective views, a ring, a bit and the blade-carrying bit;

[0033] [Fig. 11] represents a cross-sectional view of a stripping tool in the inserted state of a cable in said tool.

[0034] As mentioned above, the stripping of concentric multilayer cable is well known to those versed in this art. Such a stripping operation is necessary for making electrical connections or splices for which it is necessary to remove at least part of an outer layer of cable, in particular the layer coating or insulation of an electrical cable.

[0035] It should be noted that the invention will be described below for an application to cable stripping, although it can be applied equivalently to cutting in the form of a helical strip of any type of body, generally cylindrical in shape, such as a tube or other.

[0036] This stripping tool 1 comprises, as illustrated in [Fig. 1], an elongated body 2 having a longitudinal axis represented as XX' in the figures. The detail of this body 2 is visible in [Fig. 6]. The body 2 is a hollow body that defines a through axial cavity 3 of circular cross-section along at least part of the length of the body 2. This body 2 is connected at one of its ends to a handle 4. This hollow handle 4 is in the form of a tubular element. This handle 4 thus defines an axial recess 7 open towards the body 2 to form, with the through cavity 3 of the body 2, an axial passage for receiving the cable 20 to be stripped, which is introduced into said passage via the end of the body 2 opposite the end connected to the handle 4.

[0037] This handle 4 is equipped, at its end opposite to that which can be coupled to the body 2, with two radial handles 19. The handles 19 are removable handles.

[0038] This handle 4 is also equipped, at its end opposite to that which is connected to the body 2, with a recess 18 suitable for receiving the rotating head of a screwdriver. The handle 4 and the body 2 form a fixed assembly that rotates around an axis parallel to the longitudinal axis XX' of the body 2. The handle 4 and the body 2 are therefore coaxial.

[0039] In practice, the axis around which the handle 4 and the body 2 form a fixed unit in rotation coincides with the longitudinal axis XX' of the body 2.

[0040] The rotation of this body 2 / handle 4 assembly is driven by means of the handles 19 or a screwdriver arranged in the axis of the body 2 / handle 4 assembly with the screwdriver head inserted into the recess 18 of the handle 4. Stripping is carried out by relative rotational movement of the cable and the stripping tool 1, as will be described in more detail below.

[0041] Stripping takes place as the stripping tool moves axially along the cable 20. The stripping operation is completed when the cable 20 is stripped over a length corresponding, for example, to the area in which a connection is to be made.

[0042] It should be noted that an equivalent result can be obtained by rotating the cable inside the axial passage of the body 2 / handle 4 assembly.

[0043] The body 2 / sleeve 4 assembly has a radial opening 6 for waste evacuation through which the cable cutting, generally consisting of a strip of material in the form of a helical encirclement, is evacuated from said body 2 / sleeve 4 assembly.

[0044] The body 2 / handle 4 assembly further includes a cutting blade 5. This blade 5 of The cutting blade is mounted on the body 2 in a manner fixed in rotation with the body 2. This cutting blade 5 extends at least partially inside the cavity 3 of the body 2. The detail of this cutting blade 5 is visible in [Fig.9].

[0045] This cutting blade 5 comprises two cutting edges 51 orthogonal to each other. One of the cutting edges 51 extends parallel to the longitudinal axis XX' of the body 2. In other words, the cutting blade 5 comprises a first cutting edge oriented on a straight line that cuts perpendicularly to the axis of the cable 20 receiving passage and a second cutting edge oriented substantially parallel to the axis of said passage. The first cutting edge serves to cut the strip of chips and separate it from the rest of the cable 20, while the second cutting edge serves more specifically to detach the strip thus cut.

[0046] The cutting blade 5 is therefore always formed with a cutting section which has a component with respect to a direction parallel to the axis of said passage and a component substantially perpendicular to the axis of the passage to allow automatic chip removal by detachment of the chip separated from the cable as the stripping tool 1 is driven in rotation around the cable and its axial movement along the cable.

[0047] This cutting blade 5 can also be equipped with a sliding pad adapted to bear against a stripped portion of the cable 20. The pad is positioned on the cutting blade 5 beyond the second cutting edge. Thus, when the blade is viewed from the front, it presents a first cutting edge followed by a second cutting edge, itself followed by the pad.

[0048] The skid is located opposite the cutting edge which allows the cut strip to be separated from the rest of the cable 20, this separation being obtained more particularly by the first cutting edge, that is to say by the cutting edge which has a component substantially perpendicular to the axis of passage of the cable.

[0049] Details of such a cutting blade 5 are not provided because such a blade is well known to those versed in this art.

[0050] It is understood that, depending on the radial positioning of the cutting blade 5, a greater or lesser cutting depth can be obtained. This cutting depth can be adjusted by the relative positioning of the cutting blade 5 within the body 2 of the stripping tool 1, as will be described below.

[0051] In the examples shown, the cutting blade 5 is mounted on a clamping jaw 8 fitted to the body 2. Indeed, the body 2 is equipped with clamping jaws 8 for the cable 20 mounted on the body 2, which slide radially to protrude more or less into the cavity 3 of the body 2. There are three of these clamping jaws 8, offset by 120°. Two of the jaws 8 are without a cutting blade 5, while the third jaw 8, called the blade-holding jaw 8, is fitted with the cutting blade 5. These two types of jaws are shown in [Fig. 10]

[0052] Each jaw 8 is in the form of a block that can be inserted through a slot in the body 2 to allow its radial sliding movement. Additional guiding elements between the jaws and the body 2 can be provided if necessary. The slots in the body 2 are visible in [Fig. 6].

[0053] The clamping jaws 8 are moved by sliding along a radial direction in the cavity of the body 2 until they come to rest on the cable 20 introduced into the receiving passage of the body 2 / handle 4 assembly. To allow a radial sliding movement in synchronous motion of the entire jaw assembly 8, the stripping tool 1 includes a rotating drive element 9 for radial sliding movement in synchronous motion of the entire jaw assembly 8.

[0054] This rotating member 9 is mounted to rotate about an axis parallel to the longitudinal axis XX' of the body 2. This rotating member 9, which drives radial movement by sliding in synchronism with the set of jaws 8, is shown in section in [Fig.6] and in perspective in [Fig. 10].

[0055] This rotating radial sliding drive element 9, which slides in synchronous motion with the jaw assembly 8, is centrally hollowed out to form a ring 91. This rotating radial sliding drive element 9, which slides in synchronous motion with the jaw assembly, is mounted on the body 2. The central hollow is sized to correspond with the cavity of the body 2 and the housing of the handle 4 to allow the cable 20 to be inserted by the rotating radial sliding drive element 9 into the cable receiving passage of the body 2 / handle 4 assembly.

[0056] In the examples shown in figures 1 and 2, the rotating member 9 for radial sliding movement of the jaws 8 is located at the end of the body 2 opposite to that connected to the handle 4. This solution is preferred because it is simple to implement and access to said rotating member 9 is facilitated.

[0057] Alternatively, the rotating radial displacement drive member 9 sliding in synchronism with the set of jaws 8 could have been arranged in the thickness of the body 2. However, this solution is not preferred.

[0058] Regardless of its positioning on the body 2, the radially sliding, radially moving rotary drive 9, which slides in synchronous motion with the jaw assembly 8, comprises a plurality of fingers 10. These fingers 10, referred to as axial fingers, extend in a direction parallel to the longitudinal axis XX' of the body 2. In the example shown in [Fig. 10], the fingers 10 are arranged on the radially sliding, radially moving rotary drive 9, which slides in synchronous motion with the jaw assembly 8, in particular, on the face of the ring 91 constituting said rotary drive 9 facing the body 2, according to two concentric circles, and are arranged in a quincunx as can be seen in [Fig. 10].

[0059] Each jaw 8 comprises, for its part, at least one groove 11 open at each of its ends. In the example shown in Figures 3 and 10, three grooves 11 are provided per jaw 8. The grooves 11 of a jaw extend on the same face of the block constituting the jaw 8. These grooves 11 of the jaws are arranged opposite the fingers 10 of the ring 91 as seen in [Fig. 2].

[0060] At least one finger 10 is inserted into the one or one of the grooves 11 of each jaw 8 to allow, in parallel with the movement of the finger 10 from one end to the other of a groove 11, under the action of a rotation of the rotating drive member 9 in radial sliding movement in synchronous motion of the set of jaws around an axis parallel to the longitudinal axis XX' of the body 2, a radial sliding movement of the jaw 8.

[0061] The grooves 11 thus form, in the manner of ramps, elements with a guiding and cam function for the radial sliding movement of the jaws 8. This radial movement takes place along a radius of a circle having a center located on the longitudinal axis XX' of the body 2.

[0062] Fig. 3 illustrates how the rotational movement of the rotating drive member 9 in radial sliding movement in synchronism of the set of jaws around the longitudinal axis XX' of the body 2 generates a radial sliding movement of the jaws 8 by pressing the fingers 10 against the sides of a groove 11 of each jaw 8.

[0063] It is noted that, in [Fig.3], each groove 11 of a jaw 8 has a shape and dimension identical to the shape and dimension of a groove of another jaw 8.

[0064] Each groove 11 of a jaw 8 is a curved groove with its concavity facing the cavity 3 of the body 2. In particular, each groove 11 of a jaw 8 is a curved groove in the form of an arc of a circle with a variable radius that increases or decreases from one end towards the other end of the groove 11. For each jaw 8, the radius of one of the arc-shaped grooves, taken with respect to a center passing through the longitudinal axis of the body 2, varies within a range of dimensions identical from one jaw to another.

[0065] As illustrated in [Fig. 4], at least a portion of each groove 11 of a jaw 8 is arranged on a circle passing through at least a portion of a groove 11 of each of the other jaws 8. This circle has its center located on the longitudinal axis XX' of the body 2. The circles, each passing through a series of grooves, are concentric. Thus, regardless of the number of grooves in each jaw, at least a portion of the groove 11 of a jaw 8 is arranged on a circle passing through at least a portion of the groove 11 of each of the other jaws 8, the circle having its center located on the axis XX' longitudinal of body 2.

[0066] As shown in [Fig.3], for each jaw 8, at least one finger 10 of the rotating radially sliding drive member 9 of the set of jaws 8 is always in contact with a groove of said jaw 8.

[0067] As mentioned above, the sliding movement of the jaws 8 in a radial direction occurs until the jaws 8 come to a stop against the cable 20 to be stripped, thus ensuring that the stripping tool 1 remains in position on the cable. This movement of the jaws 8 allows the stripping tool 1 to be adapted to different diameters or cross-sections of cable 20. Once the radial sliding movement of the jaws until they reach a position where they rest on the cable 20 is complete, it is desirable that rotation of the rotating drive element 9 in radial sliding motion, synchronized with all the jaws 8, no longer be possible during the stripping operation, to avoid a loss of adjustment and the resulting risk of imperfect cutting.

[0068] For this purpose, the stripping tool 1 includes an activatable / deactivatable system 17 for immobilizing in angular position the rotating drive member 9 in radial sliding movement in synchronism of the set of jaws 8 with respect to the body 2.

[0069] The activatable / deactivatable system 17 includes at least one pin 171 carried by the rotating drive member 9 in radial sliding movement in synchronism with the set of jaws 8. In the example shown in [Fig.6], two pins are provided.

[0070] The body 2 comprises a plurality of holes 172 into which a pin 171 is suitable for insertion. Each pin 171 is movably mounted between a locked position in which it is inserted into a hole 172 of the body 2 and an angular displacement of the rotating drive member 9 in radial sliding motion in synchronous movement of the jaw assembly is prevented, and an unlocked position in which it is disposed outside the holes 172.

[0071] The switchable / switchable system 17 further includes a push button 173 with a pin 171. This push button 173 is movably mounted between a pressed position and an extended position. The extended position of the push button 173 corresponds to the locked position of the associated pin 171. This operation of the switchable / switchable system 17 is shown in [Fig. 6].

[0072] The two pushbuttons 173 are arranged diametrically opposite each other. This diametrically opposite positioning is slightly off by a few degrees to allow for a greater number of locking positions. The pushbuttons 173 therefore extend around the circumference of the ring 91.

[0073] These pushbuttons 173 are returned to the extended position by a spring. Each pushbutton 173, consisting of a stem ending in a head, has a notch along its stem inside which a pin can partially retract in the retracted position of the pushbutton 173 to extend flush or recessed from the face of the ring 91 opposite the body 2. Conversely, this pin 171 extends protruding from the face of the ring 91 opposite the body 2 in the extended position of the pushbutton 173 to fit into a hole 172 in the body 2.

[0074] The holes 172 of the body 2 are arranged on the part of the body 2 opposite the ring 91 on a circle whose center passes through the longitudinal axis XX' of the body 2.

[0075] The operation of the switchable / switchable system 17 is as follows. It is assumed that at least one of the pushbuttons 173 is in the extended position and that one of the pins 171 of the ring 91 is inserted into a hole 172 in the body 2. The ring 91, which forms part of the rotating drive element 9 for radial sliding movement synchronized with the jaw assembly 8, is fixed in an angular position. Note that, in the example shown, the pushbuttons 173 are offset by half a step. Consequently, only one pin is engaged with the body 172.

[0076] If a cable 20 has been inserted into the cable receiving passage of the body 2 / sleeve 4 assembly via the ring 91, and a movement of the jaws needs to be carried out, the operator simply needs to press the pushbuttons 173 and then rotate the ring 91. The pins 171, which slide freely in their housings inside the ring 91, can, by means of the depressing of the pushbuttons 173 carried by the ring 91, retract into their housings, and the ring 91 can be rotated until the jaws 8 come into contact with the circumference of the cable 20. To facilitate this retraction of the pins 171, the ends of the pins 171 intended to be inserted into the holes and the corresponding holes are conical in shape.

[0077] As soon as the jaws 8 reach the bearing position on the circumference of the cable 20, the pushbuttons can be released and the ring 91 is locked in its angular position by the engagement of at least one pin with a hole. During the rotation of the ring 91, when the pushbuttons are depressed, the pins 171 pass from hole to hole. These holes 172 form the equivalent of notches and each represents an indexing position of the ring 91.

[0078] When it is necessary to loosen the jaws 8, the procedure is similar and the ring 91 is simply rotated in the opposite direction to that used for tightening the jaws 8.

[0079] To improve the stripping tool 1 and allow adjustment of the cutting thickness, one or more of the cutting blades 5 are mounted on the sliding blade holder jaw 8 relative to the blade holder jaw 8 in a direction parallel to the sliding direction of the blade holder jaw 8 to vary The cutting thickness depends on the relative position of the cutting blade 5 and the blade holder jaw 8. This cutting blade 5 is also fixed to the blade holder jaw 8 for rotation.

[0080] To allow its sliding movement relative to the blade holder jaw 8, the cutting blade 5 includes, at its connection point to the blade holder jaw 8, an oblong slot into which a screw or bolt is partially inserted to connect the blade 5 to the blade holder jaw 8. This slot allows the blade 5 to slide relative to the blade holder jaw 8.

[0081] To control this sliding movement, the stripping tool 1 includes a sliding drive element 13 for the cutting blade 5. This sliding drive element 13 is permanently engaged with the cutting blade in a non-rotationally fixed manner, so that the sliding drive element 13 can rotate without generating rotation of the cutting blade 5. The permanent engagement of the sliding drive element 13 with the cutting blade 5 is achieved by the interlocking of a threaded knurled knob 132, which will be described below, with a notch in the cutting blade 5. The elements are visible in [Fig. 7].

[0082] In the example shown in [Fig. 8], the sliding drive member 13 of the cutting blade, along a direction parallel to the sliding direction of the tear-holder jaw, comprises a threaded rotating shaft equipped with a tapped knurled wheel 132, in permanent contact with the cutting blade 5. This threaded shaft 131 is equipped with a radial projection forming the male element 14 of the drive member 13.

[0083] This radial projection is adapted to fit selectively into notches of different depths formed in the blade holder jaw 8. Each notch forms a female element 15 carried by the blade holder jaw 8.

[0084] A return element 16, in the form of a spring disposed between a stop formed on the threaded shaft 131 and the blade-holder jaw 8, returns the sliding drive element 13 of the cutting blade 5 to a position close to the blade-holder jaw 8. This return element 16 thus tends to maintain the male 14 and female 15 elements in the engaged position.

[0085] To allow adjustment of the cutting blade 5's position on the blade holder jaw 8 in order to obtain a predetermined cutting thickness, it is sufficient to pull on the threaded rotary shaft constituting the sliding drive element 13 of the cutting blade 5, rotating said threaded rotary shaft by an angle depending on the desired cutting thickness, this angle being identifiable by means of a marking applied to the free end of said threaded rotary shaft, as illustrated in [Fig. 7] where the The marking indicates the values ​​10, 20, and 30 KV, which correspond to the possible adjustment values ​​before releasing the threaded rotary shaft. This shaft then positions itself, via its male element 14, within a female element, such as a notch 15, in the blade holder jaw. This notch has a depth corresponding to the selected marking. The return element 16 maintains the threaded shaft in this position of engagement between the male element 14 and the female element 15.

[0086] If finer adjustment is desired, simply turn the knob 132 in the tightening or loosening direction to move the knob 132 along the threaded axis. Because this knob 132 is permanently engaged with the cutting blade, but not rotationally but axially, this allows for further adjustment of the position of the cutting blade 5 relative to the blade holder jaw 8.

[0087] The transition to a new cutting thickness value is carried out in a manner similar to that described above.

[0088] In the example shown in [Fig. 7], three notches with three different depths are provided, thus three cutting thickness adjustment positions corresponding to the three values ​​marked on the threaded shaft, namely 10, 20, and 30 KV. Obviously, this number of notches can be increased or decreased to increase or decrease the number of cutting thickness adjustment positions without departing from the scope of the invention.

[0089] Finally, to complete the stripping tool 1, the latter includes a cable length adjustment mechanism. This adjustment mechanism is in the form of a stop 12 located inside the axial housing 7 of the handle 4. This stop 12 is axially movable within the housing 7. This stop 12 is equipped with at least one locking mechanism 121 for securing said stop 12 in position.

[0090] The handle 4 is a longitudinally split handle. This handle 4 has graduations along its split, forming guides for selecting the stripping length. The stop 12 is inserted into the axial recess 7 of the handle 4. This stop 12 can slide axially inside the recess 7 to occupy a position within said recess 7 that depends on the desired stripping length. The greater the stripping length, the closer the stop 12 is positioned to the end of the handle 4 opposite the end connected to the body 2. Once the position of the stop 12 inside the recess 7 has been determined, using the graduations arranged along the split of the handle 4, the stop 12 is locked in position by a knurled knob located on the outside of the handle at the longitudinal split of the handle, and which is connected to the stop. This knob has a part that screws into the stop.Thus, during screwing, the knurled wheel approaches the housing 7 of the handle 4. The handle 4 is at the level of its slot, sandwiched between the knurled wheel and the stop 12, the . wheel forming the immobilizing element 121 in the position of the stop 12.

[0091] The operation of a stripping tool 1, as described above, is as follows. The stripping length is set by positioning the stop 12 inside the handle 4, and locking this stop 12 in position by means of the locking member 121 of the stop 12. The position of the cutting blade 5 on the blade holder jaw 8 is set by sliding the drive member 13 in movement of the cutting blade 5 along a direction parallel to the direction of sliding movement of the blade holder jaw and rotating said drive member 13 in movement of the cutting blade 5.

[0092] The stripping tool 1 is positioned on the cable by inserting the cable 20 into the ring 91, then into the cable receiving passage of the body 2 / handle 4 assembly until the cutting blade 5 rests against the end of the cable. The push button 173 is pressed to allow rotation of the rotating drive element 9 in a radial sliding motion synchronous with the jaw assembly. The rotating drive element 9 in a radial sliding motion synchronous with the jaw assembly is rotated to drive the jaws 8 until the jaws 8 rest on the cable 20. The push buttons 173 are released to lock the angular position of the rotating drive element 9 in a radial sliding motion synchronous with the jaw assembly.

[0093] The stripping tool 1 is then rotated around the cable 20, either by means of the handles 19, or by means of a screwdriver whose screw head is positioned in the recess 18 of the handle 4 until the end of the cable comes to rest on the stop 12 fitted to the handle 4. The stripping operation is then completed.

[0094] The stripping tool 1 can be continued to rotate to allow the cable 20 to be removed without having to loosen the jaws. The stripping tool 1 can then be used as is for stripping a new cable with characteristics identical to the cable that has just been stripped.

Claims

Demands

1. Cable stripping tool (1) (20) comprising: - an elongated body (2) with longitudinal axis (XX') delimiting an axial cavity (3) with a through circular cross-section, - a handle (4) positionable at one end of the body (2), in line with the body (2), and forming with the body (2) a fixed assembly rotating around an axis parallel to the longitudinal axis (XX') of the body (2), - a cutting blade (5) mounted on the body (2) in a rotationally fixed manner with the body (2) and extending at least partially inside the cavity (3) of the body (2), - a so-called radial opening (6) for the evacuation of household waste on the body (2) / handle (4) assembly, the handle (4) being a hollow handle delimiting an axial housing (7) open towards the body (2) to form with the cavity (3) through the body (2) an axial passage for receiving the cable (20) to be stripped, introduced into said passage via the end of the body opposite that connected to the handle (4), characterized in that the body (2) is equipped with cable (20) clamping jaws (8) mounted on the body (2) movable by sliding in a radial direction to protrude more or less into the cavity (3) of the body (2), and in that the stripping tool (1) comprises a rotating drive element (9) for radial sliding movement in synchronism with the assembly of jaws (8), in that this rotating element (9) is mounted for rotation about an axis parallel to the axis (XX') longitudinal of the body (2) and comprises a plurality of fingers (10),in that each jaw (8) comprises at least one groove (11) open at each of its ends into which a finger (10) is able to be inserted to allow, in parallel with the movement of the finger (10) from one end to the other of a groove (11) under the action of a rotation of the rotating drive member (9) in radial sliding movement in synchronous motion of all the jaws, a radial sliding movement of the jaw (8).

2. A cable (20) stripping tool (1) according to claim 1, characterized in that the rotating radial sliding drive element (9) of the jaw assembly (8) is centrally hollowed out to form a ring (91), this rotating radial sliding drive element (9) of the set of bits being mounted on the body (2), preferably at the end of the body (2) opposite to that connected to the handle (4).

3. Tool (1) for stripping a cable (20) according to any one of claims 1 or 2, characterized in that the or at least one of the grooves (11) of a jaw (8) has a shape, or respectively a dimension, identical to the shape, or respectively the dimension, of the or at least one of the grooves (11) of another jaw (8).

4. A cable (20) stripping tool (1) according to any one of claims 1 to 3, characterized in that the or at least one, preferably each groove (11) of a jaw (8) is a curved groove with its concavity facing the cavity (3) of the body (2), said groove (11) being a curved arc groove (11) with a variable radius that increases or decreases from one end towards the other end of the groove (11) and in that, for each jaw (8), the radius of the or one of the arc grooves taken with respect to a center passing through the longitudinal axis of the body (2) varies within an identical range of dimensions from one jaw to another.

5. A cable (20) stripping tool (1) according to any one of claims 1 to 4, characterized in that at least a part of the groove (11) of a jaw (8) is arranged on a circle passing through at least a part of the groove (11) of each of the other jaws (8).

6. A cable (20) stripping tool (1) according to any one of claims 1 to 5, characterized in that the fingers (10) of the rotating radial sliding drive element (9) in synchronous movement with the jaw assembly extend in a direction parallel to the longitudinal axis of the body (2), in that said fingers (10) are arranged on the rotating radial sliding drive element (9) in synchronous movement with the jaw assembly in at least two concentric circles and are arranged in a staggered pattern so that, for each jaw (8), at least one finger (10) of the rotating radial sliding drive element (9) in synchronous movement with the jaw assembly is always in contact with a groove (11) of said jaw (8).

7. A cable stripping tool (1) according to any one of claims 1 to 6, characterized in that it comprises a cable stripping length adjustment element, said adjustment element being in the form of a stop (12) disposed inside the axial housing (7) of the handle (4), said stop (12) being axially movable within said housing (7), this stop (12) being equipped with at least one device (121) for immobilizing said stop (12) in position.

8. A cable (20) stripping tool (1) according to any one of claims 1 to 7, characterized in that the or one of the cutting blades (5) is coupled to one of the jaws (8) said blade holder in a rotationally fixed manner, said blade (5) being mounted on said blade holder jaw (8) movable by sliding relative to the blade holder jaw (8) in a direction parallel to the direction of sliding movement of the blade holder jaw (8) to vary the cutting thickness according to the relative position of the cutting blade (5) and the blade holder jaw (8).

9. A cable (20) stripping tool (1) according to claim 8, characterized in that it comprises a sliding drive element (13) for the cutting blade (5) permanently engaged with the cutting blade (5), this drive element (13) being axially movable in a direction parallel to the sliding direction of the blade holder jaw (8) in the direction of moving the blade holder jaw (8) apart or together to vary the distance between the blade (5) and the blade holder jaw (8), further being a rotating element equipped with at least one male element (14), or respectively female element, capable of selectively cooperating with at least two complementary female elements (15), or respectively male elements, carried by the blade holder jaw (8) to allow, in the engaged state of the male (14) and female (15) elements,immobilization in a predetermined angular position of said drive member in sliding movement of the cutting blade, each angular position corresponding to a predetermined distance or range of distances between the blade (5) and the blade-holding jaw (8).

10. Tool (1) for stripping a cable (20) according to claim 9, characterized in that it is equipped with a return element (16) for the sliding movement drive element (13) of the cutting blade (5) in a position close to the blade holder jaw (8).

11. A cable (20) stripping tool (1) according to claim 9 or 10, characterized in that the sliding drive element (13) for the cutting blade (5) comprises a threaded rotating shaft (131) equipped with a tapped wheel (132) permanently engaged with the cutting blade (5), this threaded shaft (131) being equipped with a radial projection forming the male element (14) of said drive element (13), this radial projection being adapted to insert selectively in notches of differentiated depth made in the jaw (8) blade holder, each notch forming a female element (15) carried by the jaw (8) blade holder.

12. Tool (1) for stripping a cable (20) according to any one of claims 1 to 11, characterized in that it comprises an activatable / deactivatable system (17) for immobilizing in angular position the rotating drive member (9) in radial sliding movement in synchronism of the set of jaws (8) with respect to the body (2).

13. A cable stripping tool (1) according to claim 12, characterized in that the switchable / switchable system (17) comprises at least one pin (171) carried by said radially sliding rotary drive member (9) synchronously with the jaw assembly (8), in that the body (2) comprises a plurality of holes (172) into which the pin or at least one of the pins (171) is able to be inserted, the pin or pins (171) being movably mounted between a locked position in which it is inserted into a hole (172) of said body (2) and an angular displacement of the radially sliding rotary drive member (9) synchronously with the jaw assembly is prevented, and an unlocked position in which it is disposed outside the holes (172), the system (17) comprising a push button (173) by pin (171),this push button (173) being mounted movably between a pressed position and an extended position, the extended position corresponding to the locked position of the associated pin (171).

14. Tool (1) for stripping a cable (20) according to any one of claims 1 to 13, characterized in that the or at least one of the cutting blades (5) comprises two cutting edges (51) orthogonal to each other, in that one of the cutting edges (51) extends parallel to the longitudinal axis of the body (2).

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