Hand pliers for crimping and hand pliers having a pliers head

Abstract

The present invention relates to hand pliers 1 designed for crimping and having one fixed pliers leg 4, 5 and a first and second crimping jaw 20, 21, the first crimping jaw 20 being acted upon by a drive tappet 24. To further improve the type of hand tool in question with a favorable design for operation, the present invention allows the second crimping jaw 21 to move back within the crimping jaw receptacle 19 of the hand pliers 1 against a spring force. The present invention also relates to hand pliers 1 having a pliers head formed by mutually pivotable pliers jaws 2, 3 that interact, for example for stripping, the pliers head having a wide face B, a narrow face S, and an end face T. The pivot axis x of the pliers jaws 2, 3 extends perpendicular to the plane of extension of the wide face B, and the narrow face S extends approximately perpendicular to the wide face B. Crimping jaws 20, 21 for performing crimping are also provided. An improved hand pliers is realized in that the crimping opening 18 formed by the crimping jaws 20, 21 opens into a narrow plane S.

Description

[Technical Field]

[0001] The present invention provides First of all, A hand pliers configured for crimping and having one fixed pliers leg and one movable pliers leg and a first crimping jaw and a second crimping jaw, the first crimping jaw being acted upon by a drive tappet.

[0002] The present invention further ,vinegar 1. A hand pliers having a pliers head formed by pliers jaws pivotable relative to one another for tripping, the pliers head having a wide face and first and second plates extending on upper and lower faces substantially perpendicular to said broad face in a normal operating position; The pliers have a narrow face and an end face, the pivot axis of the pliers jaws extends perpendicular to the plane of extension of the wide face, and the narrow face extends substantially perpendicular to the wide face, and a crimping jaw is also provided for performing the crimping. [Background technology]

[0003] Hand pliers of the type in question are known, so-called crimping pliers, and are used for crimping or pressing wire end ferrules onto components to be pressed, such as stripped ends of electrical cables. See, for example, U.S. Pat. No. 5,449,999.

[0004] Furthermore, hand tools are known that are specifically designed as plier-like stripping tools, but which at the same time can also be used to crimp wire end ferrules onto pre-stripped cable ends, for example. Such hand tools are known, for example, from US Pat. No. 5,629,499 (US Pat. No. 5,629,499). From DE 10 02 04 199 A1, for example, a pressing, crimping or cutting tool is known in which the crimping jaws are supported in a mechanically parallel connection via elastic support elements and sensors, nevertheless the aim is to achieve as high a rigidity as possible. From the patent application WO 02 / 04494 a pliers-like hand tool is known which is formed as a crimping tool in which a movable crimping jaw is linearly movable relative to a fixed crimping jaw for crimping. According to one configuration, a locator associated with the fixed crimping jaw can be provided, which locator is movable against a compression spring. From DE 10 02 04 199 A1 hand pliers are known which are provided with one fixed crimping jaw and one pivotable crimping jaw, and which are designed for crimping only. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] DE 10 2018 101 159 [Patent Document 2] European Patent No. 0 540 880 [Patent Document 3] U.S. Patent No. 5,500,998 [Patent Document 4] European Patent Application Publication No. 3 396 796 [Patent Document 5] U.S. Patent No. 5,042,286 [Patent Document 6] US Patent Application Publication No. 2019 / 0312397 Summary of the Invention [Problem to be solved by the invention]

[0006] Based on the prior art described above, the object of the present invention is to Hand tools, regarding operation To provide an advantageous design with an advantageous configuration. [Means for solving the problem]

[0007] This object is achieved firstly by the subject matter of claim 1, the focus of which is that the first and second crimping jaws are provided with ribs which engage with one another in a partially comb-like manner and are triangular in shape when viewed in the direction of insertion of the cable provided with the pressed part into the crimping mouth, so that in the unloaded basic position the crimping jaws are rectangular in plan view, the second crimping jaw can be moved backward in the crimping jaw receiving part of the hand pliers against force, and the first crimping jaw and the second crimping jaw are arranged in a common linear guide.

[0008] The spring force can be applied directly by the second crimping jaw, in particular by a part of the second crimping jaw, or alternatively by a separate element. Thus, for example, the second crimping jaw can directly or indirectly include a spring element acting correspondingly thereto and, for example, formed thereon. Furthermore, the spring element applying the spring force can be an element separate from the second crimping jaw, for example a metal or plastic spring, for example in the form of a cylindrical compression spring or a torsion spring. In this regard, plastic springs in the form of elastically expandable solid elements, for example in the form of a foam element, are preferred. In this respect, a polyurethane block element can be used as the spring element, against which the second crimping jaw acts, particularly during the crimping process.

[0009] The retraction or escape movement of the second crimping jaw during the crimping process, which is possible against the spring force, allows crimping of parts to be pressed that have different dimensions (which may be diameters) as viewed in the displacement direction, and is accompanied by a substantially constant displacement distance of the movable pliers leg, which preferably acts indirectly via the drive tappet on the first crimping jaw. Thus, the user is provided with an at least approximately constant working distance of the hand pliers, in particular regardless of the diameter of the part to be pressed, which is, for example, a wire end ferrule. Different displacement distances, in particular of the first crimping jaw, which occur depending on the diameter of the part to be pressed, are made possible by the second crimping jaw being retractable against the spring force. Therefore, the spring preferably acts in a distance-compensating manner.

[0010] Furthermore, as a result of the spring action on the second crimping jaw, the second crimping jaw is displaced back to its base position, which can be stopped after the crimping and the associated retraction have been carried out, and for the retraction of the second crimping jaw, no link is required to bring the second crimping jaw through the first crimping jaw.

[0011] This object is further achieved by the subject matter of claim 2, the focus of which is The crimping opening formed by the crimping jaws is First and second Opening within a narrow plane The thing is .

[0012] This results in a crimping area that can relate to the underside or the top side of the hand pliers in normal operation of the hand pliers. Thus, in a manner that is preferred for operation, a cable with wire end ferrules at its stripped end can be inserted from below into the crimping area of ​​the hand pliers with the cable end with the attached wire end ferrule pointing substantially upward. The desired crimping is then achieved by a pliers-like action of the pliers legs, with the hand pliers in an orientation that corresponds to normal operation.

[0015] differenceAccording to this configuration, the first and second crimping jaws can be arranged in a common linear guide. If necessary, the linear guide can simultaneously form a crimping jaw receptacle for the second crimping jaw. A drive tappet, preferably connected to or acted upon via the movable pliers leg, acts on the first crimping jaw in a linearly displacing manner. During the crimping process via the first crimping jaw and the pressed part, the second crimping jaw can also be displaced, if necessary, against a spring force in the linear guide. The linear guide can be formed by structural means within the hand pliers themselves, in particular by the housing of the hand pliers. Thus, in a cross section perpendicular to the linear displacement direction of the first crimping jaw, a lateral guide can be formed, for example, on both sides of both crimping jaws, and more preferably, a guide can be formed that substantially surrounds the entire periphery of both crimping jaws.

[0016] In a further configuration, the hand pliers are further configured as stripping pliers. It has been , whereby the same hand pliers can be used to first strip the free cable end and then to crimp the stripped cable end provided with, for example, a wire end ferrule.

[0017] In particular, to ensure complete crimping, i.e., completion of the crimping and / or possible stripping process, according to a possible refinement, the pliers legs can interact via a positive lock. During pliers actuation, this positive lock preferably allows only one movement, in particular a pivoting movement, of the movable pliers leg, preferably in the direction of pliers closure to a pliers leg position where crimping and / or stripping has been successfully completed. Only after this, preferably without any additional action on the positive lock by the user, does the positive lock release the return displacement of the movable pliers leg, and thus in particular the first crimping jaw, to its home position.

[0018] In a further configuration, the positive lock can also be manually released by the user after the start of the crimping or stripping process but before the lock reaches its self-release point, preferably by acting appropriately on the positive lock, which action can be performed without tools if necessary.

[0019] In this case, according to a preferred configuration, a positive lock can be exerted between the control lever and the movable pliers leg. During the pliers action, the control lever is preferably acted upon via the movable pliers leg, and is preferably held so as to be pivotable relative to the movable pliers leg. This relative mobility of the control lever to the movable pliers leg is used to create the positive lock.

[0020] In a further configuration, a positive lock can also provide a ratchet-like interaction between the control lever and the movable pliers leg, which, in addition to the resulting detent, can also be sensed as an audible signal if desired. [Brief explanation of the drawings]

[0021] The invention will now be explained in more detail with reference to exemplary embodiments and with reference to the accompanying drawings. [Figure 1] FIG. 1 is a perspective view of hand pliers of the type in question. [Figure 2] FIG. 2 is a detailed perspective view of the allocated position of the cable end to be crimped relative to the crimping opening of the hand pliers. [Figure 3] FIG. 3 is a cross-sectional view of the hand pliers in plane III of FIG. 1 in the unloaded basic position. [Figure 4] FIG. 4 is a cross-sectional view corresponding to FIG. 3 at an intermediate position in the crimping process. [Figure 5] FIG. 5 is an enlarged view of region V in FIG. [Figure 6] FIG. 6 is a continuation of FIG. 5 after crimping has been performed. [Figure 7]FIG. 7 shows a view corresponding to FIG. 5 during crimping, but with a smaller diameter part to be pressed compared to the part shown in FIG. [Figure 8] FIG. 8 shows a further view corresponding to FIG. 5, but with an even smaller diameter of the pressed part compared to FIG. [Figure 9] FIG. 9 shows a continuation of FIG. 3 regarding the use of hand pliers during the stripping process. [Figure 10] FIG. 10 shows an enlarged view of region X in FIG. [Figure 11] FIG. 11 shows a continuation of FIG. 10 for an intermediate position in the course of the stripping process. [Figure 12] FIG. 12 shows a continuation of FIG. 11 for the position after the stripping process is completed. DETAILED DESCRIPTION OF THE INVENTION

[0022] 1, a first embodiment of hand pliers is shown and described, comprising a pliers head K having two pliers jaws 2, 3 and two pliers legs 4, 5. The pliers jaws 2 and 3 define a pliers mouth M at an end face T of the head pliers 1.

[0023] The pliers jaw 2, hereinafter referred to as the "fixed jaw", is directly and fixedly connected to the pliers legs 4 via the cheek region 6.

[0024] In the cheek region 6, the stripping pliers 1 provide a mounting for a pivot 7 with a geometric axis x, about which the movable pliers jaw 3 is rotatably held.

[0025] The mounting of the movable pliers jaw 3 on the pivot 7 takes place in the region of a shoulder of the movable pliers jaw 3 which extends in the extension direction of the axis x in projection onto the cheek region 6 of the fixed pliers jaw 2 .

[0026] The geometric axis x preferably extends perpendicular to the broad surface B of the pliers head K. The two narrow surfaces S extend on the upper and lower surfaces in the normal operating position substantially perpendicular to the broad surface B. The length of these narrow surfaces, as viewed perpendicularly to the broad surface B, may correspond to one third or less, for example one tenth or less, of the extension length b of the broad surface B, as viewed orthogonally to the axis x.

[0027] For example, the pliers jaw opening position shown in FIG. 3 may be limited by a stop.

[0028] The further pliers leg 5 is pivotally mounted about a pivot axis 7 or a further geometric axis y arranged parallel to the geometric axis x. A corresponding physical axis is likewise held in the cheek region 6 of the fixed pliers jaw 2 or fixed pliers leg 4.

[0029] The movable pliers leg 5 is pivotable about axis y in the direction of the fixed pliers leg 4. A pivotal displacement of the movable pliers leg 5 towards the fixed pliers leg 4 causes an associated pivotal movement of the movable pliers jaw 3 about axis x.

[0030] For this purpose, a control lever 8 of a preferred angle is fixed to the movable gripping member 5. In the illustrated exemplary embodiment, the control lever 8 rests at its free end against a cantilever 10 on the shoulder of the movable pliers jaw 3 by means of a roller 9 suitably arranged in this area. The cantilever 10 is formed, for example, like a sliding block.

[0031] A control lever 8 is pivotally held on the movable pliers leg 5. The associated pivot axis z runs parallel to the geometrical axis of rotation x.

[0032] Furthermore, the movable gripping member 5 acts via a link 11 on a cutting blade 12 pivotably mounted in the cheek area 6 of the fixed pliers jaw 2. The mounting of the cutting blade 12 takes place in the cheek area 6 by means of an associated geometric axis which also runs parallel to the geometric pivot axis x of the movable pliers jaw 3.

[0033] The cutting blade 12 is exposed in an area 13 of the cheek region 6 and is free to cut in its downwardly facing narrow surface S during normal operation and is preferably used to cut the cable to length, e.g. a cable to be stripped in a further step.

[0034] As a result of the pivoting movement of the cutting blade 12 during the pivoting displacement of the movable pliers leg 5 towards the fixed pliers leg 4, the cable that may be located in the area 13 is cut by the pivoting cutting blade 12, while supporting the cable on the side of the cheek area 6 that defines the area 13.

[0035] Opposite the end face T, and in particular the pliers mouth M, the hand pliers 1 have a stripping device A which is linked to the action of both the pliers legs 5 and the control lever 8.

[0036] Furthermore, the hand pliers 1 have a crimping device C on the narrow face S facing downwards during normal operation, by means of which the cable 14 stripped by the stripping device A, for example, can be crimped in the region of the already exposed wire 15 by means of a pressed part 16, in particular in the form of a wire end ferrule.

[0037] Here, the crimping device C can preferably be provided between the area 13 for cutting the cable and the end face T, for which purpose a crimping opening 18 is left in the jaw wall 17 of the fixed pliers jaw 2 which forms the relevant narrow face S.

[0038] Furthermore, a crimping jaw receiver 19, which cooperates with the crimping opening 18, is formed in the fixed pliers jaw 2. The first crimping jaw 20 and the second crimping jaw 21 are accommodated together and linearly guided. The displacement direction r of the crimping jaws 20 and 21, for example as shown in Figure 5, can be, and is preferred, substantially in the same direction as the orientation and displacement direction of a pull rod 22, which is pivotally connected to the control lever 8 and which interacts with the stripping device A.

[0039] A spring 23, which in this example is a cylindrical compression spring, is preferably arranged between the pulling rod 22 and the cantilever 10. The spring biases the movable pliers leg 5 towards the basic position shown in Figure 3. In this basic position, the movable pliers jaw 3 can also be held in a basic position with a stop limit.

[0040] In the illustrated exemplary embodiment, the second crimping jaw 21 extending from the crimping opening 18 is arranged opposite the end face T and is only indirectly linearly displaceable in the crimping jaw receiver 19 during the crimping process. On the other hand, the first crimping jaw 20 is directly linearly displaceable in the crimping jaw receiver 19 as a result of the action of a drive tappet 24. The drive tappet 24 is attached to both the first crimping jaw 20 and the link 11 or to both the first crimping jaw 20 and the cutting blade 12 and is thereby pivotable about axes 25 and 26 which are preferably arranged parallel to the x-axis and / or the y-axis and / or the z-axis. The drive tappet 24 is formed in a link-like manner.

[0041] The two crimping jaws 20 and 21 furthermore engage with each other in a partially comb-like manner and preferably are provided with a cable with a pressurized part. 1 Preferably, the crimping opening 28 is provided with a rib 27 which is approximately triangular when viewed in the direction of insertion of the crimping opening 18. In the unloaded basic position in Figure 3, this results in a rectangular, in particular square, crimping opening 28 in plan view (see for example Figure 2).

[0042] With regard to the rib-like configuration of the crimping jaws 20 and 21 and the resulting configuration of the crimping mouth 28, reference is made, for example, to DE 10 2018 101 159 A1, the contents of which are hereby incorporated in their entirety into the disclosure of the present application, including for the purpose of incorporating the features of this German published patent application into the claims of the present application.

[0043] The second crimping jaw 21, which is guided in the crimping jaw receiver 19, is supported at the bottom of the crimping jaw receiver 19 via a spring 29, which may also preferably be an elastically restorable polyurethane spring, which is correspondingly compressible when acted upon, thereby generating a restoring spring force.

[0044] When activated, pliers legs 4 and 5 preferably interact via a positive lock 30. Positive lock 30 preferably operates in conjunction with both crimping device C and stripping device A, and optionally also in conjunction with a cutting device for severing the cable with cutting blade 12.

[0045] The positive lock 30 comprises a pawl 31 pivotally held on the movable pliers leg 5 and a ratchet projection 32 on the control lever 8 which interacts with the pawl 31 during operation of the hand pliers 1. The pawl 31 is biased via a tension spring 33 to a basic position, e.g., as shown in FIG.

[0046] The pawl 31, which is pivotable about an axis 34 arranged parallel to the aforementioned axis, has substantially radially projecting pawl fingers 35 for ratcheting interaction with a plurality of ratchet shoulders 36, e.g., three ratchet shoulders 36 of the ratchet projection 32 as shown.

[0047] An actuation finger 37 may be provided spaced apart from the pawl finger 35 in the circumferential direction about the axis 34. The ratchet 31 may be manually pivoted via the actuation finger 37 to displace the ratchet lug 32 into a position that releases the ratchet lug 32, as required.

[0048] With regard to the pivoting possibility of the pawl 31, stop limits can be provided in one and / or the other pivoting direction.

[0049] As a result of the positive lock 30, during normal operation of the hand pliers 1, the crimping or stripping process, or, if necessary, the cutting process, is fully completed and, correspondingly, the preferred end position of each device is reached. Before this end position is reached, the interaction of the pawl 31 and the ratchet projection 32 prevents the movable pliers leg 5 from returning towards its home position, and thus simultaneously prevents the movable pliers jaw 3 and / or the crimping jaws 20 and 21 from returning to their home positions. In these intermediate operating positions, the pawl finger 35 interacts in a locking manner with one of the ratchet shoulders 36.

[0050] Thanks to the positive locking mechanism 30, the displacement of the first crimping jaw 20 connected to the drive tappet 24 is always the same length, substantially independent of the thickness d of the pressed part 16 as viewed in the displacement direction r of the crimping jaws 20 and 21. A differential displacement occurs depending on the thickness d of the pressed part 16, during which the second crimping jaw 21 must also be displaced linearly in the displacement direction r together with the first crimping jaw 20. This differential displacement is made possible by the arrangement of the spring 29. By correspondingly supporting the second crimping jaw 21 via the spring 29, further linear displacement of the second crimping jaw 21 accompanying the differential displacement is made possible. In this regard, according to a preferred configuration, the spring force of the spring 29 can be sufficiently high to absorb the pressing force acting through the first crimping jaw 20 during normal pressing, particularly in the initial position, preferably limited by a stop, for the second crimping jaw 21 shown in FIG. 3 . Thus, the displacement of the second crimping jaw 21 against the restoring force of the spring 29 can occur only after crimping is completed, or alternatively, during crimping.

[0051] A possible further differential movement of the second crimping jaw 21, which depends on the thickness d of the part 16 to be pressed, results in a different length l of the spring 29 in the end crimping position, which length l decreases as the thickness d of the part 16 to be pressed increases (see in particular Figures 6 to 8). Correspondingly, an increase in the thickness d of the part 16 to be pressed results in a greater compression of the spring 29 in order to compensate for the displacement movement of the second crimping jaw 21, in particular via the positive lock 30.

[0052] During the crimping process, the centre of the crimping opening 28 obtained between the crimping jaws moves relative to the fixed pliers jaw 2 .

[0053] Each of the two plier jaws 2 and 3 further has outer clamping jaws 38, 39 for clampingly gripping a cable 14 inserted into the plier mouth M for stripping the free end thereof. See also Figures 9-10.

[0054] Furthermore, with regard to the arrangement of the clamping jaws 38 and 39 relative to the geometric axis of rotation x, two inner cutting jaws 40, 41 are provided, each of which has a cutting blade 42, 43 fixed to its end region facing the clamping jaws 38 and 39. The cutting blades 42, 43 are arranged opposite each other.

[0055] The geometric axis of the pivot 44 preferably extends in a direction parallel to the pivot axis x of the movable pliers jaw 3 of the operating mechanism of the pair of cutting jaws.

[0056] A spring 45 is disposed between the cutting jaws 40 and 41. The spring 45 biases the cutting jaws 40 and 41 apart in an open position.

[0057] In the exemplary embodiment shown, a slide stop 46 is provided on the lower pliers jaw 41, i.e. on the cutting jaw 41 associated with the fixed pliers jaw 2, which can be latched into position in the extension direction of the cutting jaws 41 in order to provide a stop for the free end of the cable inserted in the pliers mouth M, thereby defining in this way the length of the portion to be stripped.

[0058] The cutting jaws 40 and 41 are guided laterally within the respective associated pliers jaws 2, 3 to allow suitable sliding displacement of the cutting jaws 40 and 41 in their longitudinal direction, i.e. extending from an initial position relative to the clamping jaws 38 and 39 to an end position displaced away from the clamping jaws 38 and 39 towards the pivot axis x, and from this end position back again to the initial position.

[0059] A pull rod 22 is provided for this displacement of the cutting jaws 40, 41. In the process of pressing the gripping members 4, 5 together, the cutting jaws 40, 41 can be displaced from an initial position to an end position against the force of a spring 23 acting on the pull rod 22.

[0060] The pull rod 22 is also guided on the pull rod side by the physical pivot 7 passing through an elongated slot-like recess 47 .

[0061] In relation to the pivot axis 44 of the pair of cutting jaws, the pull rod 22 has a receiving hole 48 oriented generally towards the fixed pliers jaw 2 and generally oriented in the closing or opening direction of the cutting jaws 40 and 41. The receiving hole is formed by a generally hook-shaped configuration in the end region of the associated pull rod 22.

[0062] In the normal use position of the hand pliers 1, the pivot axis 44 of the pair of cutting jaws is located in this receiving hole 48, so that sliding displacement of the pull rod 22 causes corresponding sliding displacement of the pair of cutting jaws due to the elongated hole-like configuration of the recess 47.

[0063] This sliding displacement of the pull rod 22 is made possible by cooperation with a control lever 8 held on the movable gripping member 5. The control lever 8 is engaged in a hole 49 on the pull rod side by means of a pull shaft 55. The pull shaft 55 is arranged parallel to the pivot axis 7 and in the illustrated exemplary embodiment may also form the axis of the roller 9.

[0064] Each cutting jaw 40, 41 is supported within the associated pliers jaw 2, 3 via a slide block member 50, 51 which in turn may be supported on a slide block fixed to the clamping jaw.

[0065] The indirect support of the cutting jaws 40, 41 on each pliers jaw 2, 3 is known, for example, from EP 1 557 920. With regard to the mode of operation, reference is also made to the contents of this patent specification.

[0066] In the process of pressing the plier jaws 4 and 5 together, firstly a closure of the plier jaw opening M by a corresponding pivotal displacement of the movable plier jaw is performed, while a simultaneous closure of the pair of cutting jaws is performed (see Figures 9 and 10). The cutting edges 42 and 43 of the cutting jaws 40 and 41 cut into the insulating sheath of the cable 14 to a cutting depth which is preferably automatically adjusted depending on the thickness of the cable.

[0067] 11, the roller 9 of the cantilever 10 slides along the opposite end surface of the cantilever 10, overcoming the restoring force of the spring 23 acting on the pull rod 22. The pull rod 22 is pulled linearly away from the pliers mouth M, dragging the pair of cutting jaws along with it. As a result, the insulation 54 is separated by cutting with the cutting blades 42 and 43 and stripped from the cable 14.

[0068] In response to further pressing the pliers legs 4 and 5 together, the roller 9 on the cantilever leaves its supporting position against the cantilever 10 of the movable pliers jaw 3. The movable pliers jaw 3 pivots back towards its open base position, while simultaneously opening the pliers jaw opening M and the pair of cutting jaws. This is achieved, inter alia, by the restoring force of a spring 45 provided between the cutting jaws 40 and 41.

[0069] The stripped end of the cable 14 is exposed for removal from the hand pliers 1. The cut and stripped insulation 54 is exposed for removal or, if possible, for automatic dropping from the jaws M of the pliers.

[0070] Subsequently, the cable ends that have been stripped and provided with, for example, wire end ferrules, can be crimped or pressed with the same hand pliers 1 .

[0071] The above description is intended to describe the invention as a whole, which improves upon the prior art by at least the following combinations of features, each of which is independent of the other, and two, more or all of these combinations of features may be combined:

[0072] The hand pliers are characterized in that the second crimping jaw (21) in the crimping jaw receiving portion (19) of the hand pliers (1) can be moved backward against a spring force.

[0073] A hand pliers characterized in that the crimping opening (18) formed by the crimping jaws (20, 21) opens into a narrow surface (S).

[0074] A hand pliers characterized in that the first and second crimping jaws (20, 21) are arranged in a common linear guide.

[0075] The hand pliers (1) are further configured as stripping pliers.

[0076] Hand pliers characterized in that the pliers legs (4, 5) interact via a positive lock (30).

[0077] Hand pliers characterized in that the positive lock (30) acts between the control lever (8) and the movable pliers leg (5).

[0078] All disclosed features are essential to the invention (both by themselves and in combination with one another). The disclosure of the present application incorporates in its entirety the disclosures of the relevant / additional priority documents (copies of earlier applications), with the aim of incorporating the features of these documents into the claims of the present application. The dependent claims are characterized by independent, inventive further developments of the prior art, even without the features of the claims cited therein, in particular for the purpose of filing a divisional application based on these claims. The invention specified in each claim may additionally have one or more features specified in the preceding description, in particular those given reference signs and / or specified in the sign explanations. The present invention also relates in particular to design forms in which individual features set out in the preceding description are not implemented, insofar as they are clearly unnecessary for the respective intended use or can be replaced by other means having the same technical effect. [Explanation of symbols]

[0079] 1 hand pliers 2, 3 pliers jaws 4, 5 pliers legs 6 Cheek area 7 Swivel Axis 8 Control Lever 9 Roller 10 Cantilever 11 Links 12 cutting blade 13 areas 14 Cable 15 wires 16 Compression section 17 Jaw wall 18 Crimp opening 19 Crimping jaw receiver 20 First crimping jaw 21 Second crimping jaw 22 Pulling rod 23 Spring 24 Drive tappet 25th and 26th axes 27 Ribs 28 Crimping mouth 29 Spring 30 Positive Lock 31 Brake 32 Ratchet protrusion 33 Tension Spring 34 axes 35 Bracket Finger 36 Ratchet shoulder 37 Operating finger 38, 39 Pincer jaw 40, 41 Cutting jaw 42, 43 cutting blade 44 Swivel axis 45 spring 46 Slide stopper 47 Recess 48 Receiving hole 49 holes 50, 51 Slide block members Links 52 and 53 54 Insulation section 55 Pull shaft a, b length

Claims

1. A hand pliers designed for performing crimping, having one fixed pliers leg (4) and one movable pliers leg (5) and first and second crimping jaws (20, 21), said first crimping jaw (20) being acted upon by a drive tappet (24), the first and second crimping jaws (20, 21) are provided with ribs (27) which engage with each other in a partially comb-like manner and which have a substantially triangular shape when viewed from the direction of insertion of the cable (14) provided with the pressed part into the crimping opening (18), thereby obtaining a crimping opening (28) which is rectangular in plan view in the unloaded basic position; the second crimping jaw (21) can move backward against a spring force within the crimping jaw receiving portion (19) of the hand pliers (1); and Hand pliers, characterized in that the first and second crimping jaws (20, 21) are arranged in a common linear guide.

2. A hand pliers (1) having a pliers head formed by pliers jaws (2, 3) pivotable relative to one another for interacting for stripping, the pliers head having a broad surface (B), first and second narrow surfaces (S) extending on upper and lower sides substantially perpendicular to the broad surface (B) in a normal operating position, and an end surface (T), the pivot axis (x) of the pliers jaws (2, 3) extending perpendicular to the plane of extension of the broad surface (B), 2. Hand pliers according to claim 1, characterized in that the crimping openings (18) formed by the crimping jaws (20, 21) open into the narrow surface (S).

3. 2. Hand pliers according to claim 1, characterized in that the hand pliers (1) are further configured as stripping pliers.

4. Hand pliers according to any one of claims 1 to 3, characterized in that the fixed pliers leg (4) and the movable pliers leg (5) interact via a positive lock (30).

5. 5. Hand pliers according to claim 4, characterized in that the positive lock (30) acts between the control lever (8) and the movable pliers leg (5).

Images