EP2636489B1 - Pince avec levier d'actionnement - Google Patents

Pince avec levier d'actionnement Download PDF

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Publication number
EP2636489B1
EP2636489B1 EP20130156907 EP13156907A EP2636489B1 EP 2636489 B1 EP2636489 B1 EP 2636489B1 EP 20130156907 EP20130156907 EP 20130156907 EP 13156907 A EP13156907 A EP 13156907A EP 2636489 B1 EP2636489 B1 EP 2636489B1
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EP
European Patent Office
Prior art keywords
pliers
locking piece
arm
actuating lever
pliers according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20130156907
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German (de)
English (en)
Other versions
EP2636489A2 (fr
EP2636489A3 (fr
Inventor
Edwin Lässe
Felix Timm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hazet Werk Hermann Zerver GmbH and Co KG
Original Assignee
Hazet Werk Hermann Zerver GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Hazet Werk Hermann Zerver GmbH and Co KG filed Critical Hazet Werk Hermann Zerver GmbH and Co KG
Publication of EP2636489A2 publication Critical patent/EP2636489A2/fr
Publication of EP2636489A3 publication Critical patent/EP2636489A3/fr
Application granted granted Critical
Publication of EP2636489B1 publication Critical patent/EP2636489B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00—Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/06—Joints
    • B25B7/10—Joints with adjustable fulcrum

Definitions

  • the present invention relates to a pair of pliers, in particular a water pump pliers, according to the preamble of claim 1.
  • Water pump pliers are known from the prior art, which are used in particular by installers in heating construction as well as in the installation of sanitary facilities or the laying of water pipes.
  • a water pump pliers is characterized by the fact that it has two long gun arms, which allow a high gripping force with only one-handed operation due to the lever set between the jaws.
  • the water pump pliers is versatile and suitable for gripping nuts of different sizes, such as nuts with a diameter for a 10ner mouth width up to a 28iger or even 32iger mouth width, are suitable and also with the water pump pliers different diameters of pipes can be taken
  • Water pump pliers an adjusting mechanism, which allows the two gun arms so relatively translational move, that the jaws are variable in their distance from each other.
  • the two pliers arms which are displaced relative to one another, are fixed in a positionally fixed position via the adjusting mechanism, so that the forceps jaws open by performing a forceps movement and shut down.
  • a water pump pliers is usually moved back to a starting position, so that the jaws bear substantially form-fitting manner to each other, so that an injury, such as a pinch, due to the accidental work movement, is avoided.
  • a water pump pliers in which two pliers arms are inserted into one another, wherein in an inner pliers arm a slot is formed and the slot has a bordering tooth profile.
  • the second tong arm is rotatably mounted about a locking piece, wherein the locking piece is translationally movable in the slot and can be transferred by an axial movement orthogonal to the slot direction in two different positions.
  • a first position is taken over the locking piece, in which both gun arms positionally fixed in translation, but are rotatably mounted to each other.
  • the locking piece If the locking piece is moved axially in a second position, a translational displacement of the locking piece is made possible within the slot. So that the locking piece is basically held in a locking position, a compressive force is exerted on the locking piece via a leaf spring. As a result, the adjustment improves, especially with limited available working space, for example when mounting in the space of several laid pipe strands.
  • the handling especially a one-handed handling for Adjustment of the water pump pliers, but is only conditionally possible with high skill of the applying mechanic.
  • the forceps in a between the jaws and the gun arms extending transition region is very solid, which is why it has top heavy weight due to the material of the gun arms in the transition region and the locking piece.
  • the head load is located at the opposite end of the pliers, where it is gripped by the applying fitter, the pliers here has a high inertia and it takes at hours for many applications of high handling forces to the pliers several hundred or even move several thousand times on a working day to different tool-application positions.
  • the object of the present invention is, starting from the prior art, to improve a pair of pliers, in particular a water pump pliers, in such a way that it is easier to handle with favorable manufacturability and furthermore to provide increased strength. It is a further object of the present invention to improve the handling of the pliers.
  • the invention relates to a pair of pliers according to the preamble of independent claim 1.
  • the locking piece can be moved translationally in the slot, which is considered a preferred embodiment.
  • the slot itself may also be curved, for example, the slot has an arcuate course.
  • the locking piece is then displaceable within the slot following the arcuate course.
  • the slot can thus follow in a pliers arm whose course, which may also be curved.
  • the edges of the slot would be formed with substantially constant thickness, since both slot in this case, as well as pliers have a same course.
  • the sawtooth profile arranged in the oblong hole can be any kind of profiling which can be brought into engagement in a form-fitting manner in a limited number of positions.
  • the sawtooth profile can be formed from saw teeth configured in a triangular or pyramidal cross-section, but it is also possible for a corrugated profile to be formed or else a profile having a different geometric shape, wherein the geometric shape with the locking piece positively fixed in a limited number of different positions fixed position for engagement can be brought.
  • the individual teeth or else indentations of the profile can be arranged directly adjacent to one another or else at a distance from one another, so that, for example, only two or three different position-fixed positions relative to one another are made possible. In the context of the invention, however, it may also be directly adjacent teeth that allow, for example, 10 or even 20 different locking positions by the translational movement of the two forceps arms to each other.
  • the actuating lever is a lever which is pivotally mounted on the pliers, in particular on a pliers arm, and is coupled with one side in a form-fitting manner with the locking piece and on which this opposite side is manually operable.
  • the actuating lever is pressed by a thumb of an applying mechanic in the direction of the forceps itself, being transferred by the lever movement, the locking piece of the blocking position in the release position. Following this, it is possible to move the two forceps arms, for example, by engaging one another with one palm and the four remaining fingers and a displacement of the fingers and palm to each other.
  • the actuating lever is mounted about a pivot pin in a gun arm and surrounds the locking piece on the head side.
  • the locking piece for this purpose has a lens head, which very particularly preferably in one piece on the Locking piece is formed and is under attack either by a clevis of the actuating lever or is engaged behind a form-fitting manner in a receiving opening of the actuating lever.
  • the locking piece and the actuating lever perform a relative movement with respect to each other, so that a simple movement of the locking piece from the blocking position to the release position and from the release position to the blocking position is made possible without the locking piece being tilted into the tong arms.
  • the forceps on a first tong arm and a second tong arm and the two tong arms are rotatably connected to each other via a pivot axis, wherein each tong arm a handle portion, a head portion disposed on the head portion jaws and a between the head portion and the handle portion which has an opening width of the jaws is variable and the pliers in particular also has the features described above, achieved in that at least one gun arm in the head portion has a truss structure, wherein the truss structure is optimized power flow and or that the jaws having a gripping area and a tip, wherein the executable by the forceps arms rotational movement of the forceps arms is limited so that when completely closed pliers, the distance between the tips of the back is always smaller than the distance of the jaws in the gripping area.
  • a truss structure is to be understood as meaning a structure which is formed from trusses arranged in a truss-like manner and interspaces arranged within the struts.
  • the struts are opposite to the intermediate spaces, wherein the orientation of the struts are selected depending on the expected force flows. This makes it possible to optimize the forceps, in particular in the head-side region or in the extending from the head portion to the handle portion transition section in their weight, while maintaining at least the same strength. This results in a much easier handling, so that the limbs of the arm of the user installer are spared because he has to spend much lower forces to pivot the pliers in the respective working position.
  • the pliers is to produce much cheaper through material savings, especially in this area.
  • the high strength properties wherein the strength properties are at least the same, if not higher, despite material savings than conventionally made water pump pliers, are achieved by a forge technology production of the gun arms.
  • Another advantage of the water pump pliers according to the invention is that the objects to be brought into the gripping area between the jaws due to the distance between the tips of the jaws to each other with fully closed pliers are always good to grab with a hand movement of the pliers in the grip portions of the gun arms. Due to the smaller distance between the tips of the jaws to each other with fully closed pliers against the distance of the jaws to each other in the gripping area is prevented that a gripped object, such as a large tube, slip out of the gripping area with a pipe outside diameter.
  • the actuating lever is particularly preferably formed on a tong arm in such a way that it extends at least in sections into the grip section from a transition section, which is located between a head section and a grip section on a tong arm.
  • the actuating lever is thus formed as an elongate member and engages with its one end the locking piece, which is located in the head-side region of the transition section, wherein the opposite sides of the transitional portion extends at least partially into the handle portion, so that they are in proper and labor-safe gripping the Water pump pliers in the handle section is actuated.
  • the operation is done with a thumb or index finger, so a finger, which is oriented in normal handling of the water pump pliers in the direction of the pliers head.
  • a finger which is oriented in normal handling of the water pump pliers in the direction of the pliers head.
  • the actuating lever is particularly preferred over a deflecting point pivotally mounted on a gun arm, wherein the deflection point is formed in particular as a cross pin. It is possible to mount the actuating lever to the gun arm and then bring the cross bolt and secure in the gun arm, in particular to rivet. Thus, even with intensive daily use of the water pump pliers, the operating lever is properly located therein and failure of the actuating mechanism is avoided.
  • the riveting is particularly preferred to the integrally formed locking piece. In the context of the invention, however, it is also possible to fix the cross pin differently. This can be done positively and / or non-positively and / or materially. It is particularly important that the cross bolt is captively fixed in the gun arm.
  • the force acting on the locking piece spring force is exerted in particular on the actuating lever on the locking piece.
  • a spring is particularly preferably arranged between an actuating portion of the actuating lever and a pliers arm coupled to the actuating lever, in particular a helical compression spring or else a leaf spring. This allows the spring to be located away from the locking piece.
  • a arranged in the region of the locking piece spring often leads due to the movement and abrasive wear in this area to failure in other known water pump pliers with locking mechanism.
  • a leaf spring which is riveted to a gun arm and has a biasing force acting directly on the locking piece, subject in years of intensive use of such a water pump pliers in the professional field of wear due to relaxation of the spring force and is also in principle the risk of mechanical damage due to external influence exposed.
  • a helical compression spring is suitable here because of their spring properties, as they do not lose their resilience in their spring force, even with years of intensive and daily use.
  • the actuating lever is particularly preferably designed with a fork head, wherein the fork head engages around the locking piece in a relatively movable manner.
  • the actuating lever is formed with an eccentric receiving opening, wherein the receiving opening is relatively movable coupled to the locking piece.
  • the receiving opening is locked in a bayonet with the locking piece and the operating lever is mounted on the pliers.
  • the locking piece is formed with a lens head, wherein in the invention, in particular the lens head is integrally formed on the locking piece.
  • the lens head is integrally formed on the locking piece.
  • the actuating lever in the coupling region with the locking piece on a curved receiving surface for engaging behind the lens head, wherein the curvature of the gun arms pointing away is oriented. Due to the curvature, it is possible during the entire pivoting movement of the actuating lever to produce such a positive engagement or engagement of the actuating lever from the lens head, so that the locking piece does not tilt.
  • the curvature is formed on the lens head in such a way that a normal, which stands in each case on the curvature, engages orthogonally under the lens head in the respective position. Thus, a perfect axial movement of the lens head is possible.
  • the first gun arm is provided in its transition portion with a longitudinal slot
  • the second gun arm engages the longitudinal slot with its transition portion and the second tong arm has the slot with the sawtooth and in the second gun arm
  • the locking piece is translationally movable in the release position and in the Locking position is fixed in position
  • the locking piece is further mounted axially displaceable in the first gun arm, so that by the axial displacement, the locking position or release position is receivable and the first gun arm is rotatably mounted around the locking piece.
  • the water pump pliers is limited to a minimum of the components to be used, since no additional bearings, spring elements or other rivets, snap rings o. ⁇ . Are used in the coupling area.
  • the coupling region is formed exclusively by first and second gun arm and the two tong arms rotatably coupling locking piece.
  • the actuating lever according to the invention is also provided.
  • Other components, such as snap rings, springs o. ⁇ . Are avoided in the coupling area.
  • the first tong arm is particularly preferably designed in such a way that at least one receptacle for the actuation lever is provided on an upper side and guide holes are arranged on an underside and on the upper side, wherein the locking part passes through the first tong arm axially displaceably and rotatably in the guide holes.
  • the locking piece is slidable in the guide holes in its axial direction to occupy the locking position and the release position and can also be used in the initial assembly in the pliers.
  • the first gun arm is then rotatably disposed about the locking piece, so that by the rotational movement, the forceps movement is executable.
  • the actuating lever also rotates with the rotational movement of the first gun arm around the locking piece with.
  • the actuating lever in the region of the fork head or the receiving opening is arranged rotatably about the locking piece.
  • the actuating lever has an extension on an actuating side, wherein the extension is formed projecting into the receptacle of the top of the first gun arm and in the release position, ie upon actuation of the actuating lever, comes to rest on the underside of the first gun arm limiting.
  • the locking piece is thus limited by the operating lever form-fitting in its axial displacement in locking position and release position. Circlip constructions or other position fixings on the locking piece thereby completely eliminated.
  • a helical compression spring is arranged on the extension, whereby then a simple and at the same time effective and durable kinematic coupling of the adjusting mechanism and the rotational movement to perform the forceps movement is given.
  • the guide hole is formed circular on the underside.
  • the locking piece is also formed on its underside also circular, wherein it particularly preferably has a circular section. This makes it possible, at least on one side of the pliers, to allow a positive connection between circular guide hole and circular section, which ensures the highest possible load when performing the pliers movement.
  • teeth are arranged in a central region of the locking piece, wherein the teeth are formed corresponding to the sawtooth profile. In the case of juxtaposed, directly adjacent, triangular profiles of the sawtooth profile according to the teeth on the locking piece are also triangular, formed directly adjacent.
  • the locking piece is formed such that it has a central region, wherein in the central region, two parallel walls are arranged and the teeth protrude from the walls, wherein the walls have a distance from each other, that of the tips of the Sawtooth profiles of the oblong hole corresponds, so that in the release position, a positive sliding within the slot is made possible, wherein in the locking position, the teeth with the sawtooth profile in a form-locking fixed position can be brought into engagement.
  • the length of the walls is formed corresponding to at least the distance between two peaks of the sawtooth profile. This ensures that when taking the release position and translational movement, the locking piece is not tilted within the two opposite sawtooth profiles of the slot, but is guided in the direction of the translational degree of freedom such that the locking piece is always moved in parallel within the slot.
  • the pliers arms are made by forging, resulting in the highest strength properties at the same weight saving potential.
  • the pliers arms can thus be formed directly and are rotatably engaged with each other via the locking piece, without additional bearings o. ⁇ .
  • the pliers arms are in particular made of a steel material, wherein the locking piece is very particularly preferably formed of a steel material.
  • the actuating lever may also be formed in the context of the invention of a steel material, but also of a light metal or of a plastic material.
  • the forceps arms in the handle portion on a truss and / or at least in sections a strut is formed in the handle portion.
  • a strut is formed in the handle portion.
  • FIG. 1 shows a water pump pliers 1 according to the invention, which has a first gun arm 2 and a second gun arm 3, wherein the two gun arms 2, 3 are rotatably coupled to each other about a rotation axis 4. Furthermore, the water pump pliers 1 according to the invention has a closure mechanism which makes it possible to carry out a translatory adjustment movement 5 between the first 2 and second 3 pliers arm, whereby the opening width 6 of the water pump pliers 1 can be adjusted. Furthermore, each pliers arm 2, 3 a handle portion 7, 8, a head portion 9, 10 and arranged on the head portion 9, 10 jaws 11, 12 and between the head portion 9, 10 and handle portion 7, 8 extending transition portion 13, 14.
  • a slot 15 is arranged in the transition section 13, 14 of the second gun arm 3, the slot 15 each having a sawtooth profile 16 at its outer edges. Furthermore, both pliers arms 2, 3 in the handle portion 7, 8 each have an outside at least partially outer circumferential strut 17 which increases in the grip portion 7, 8, the support surface for the hand of an applying mechanic.
  • an actuating lever 18 is arranged on the water pump pliers 1, which, when actuated, displaces a locking piece 19 in the axial direction, so that it is moved from a blocking position into a release position and executes the translatory adjusting movement 5. If the locking piece 19 is arranged in the blocking position, the two gun arms 2, 3 are rotatably mounted about the axis of rotation 4.
  • the water pump pliers 1 according to the invention in the head section 9, 10, a framework 20, wherein the framework 20 is formed of recesses 21 and between the wells 21 mounted struts 22.
  • the water pump forceps 1 can be produced significantly more favorably with at least constant strength and have a lower dead weight.
  • FIG. 2 shows the water pump pliers 1 in an initial position, wherein the translational movement 5 is carried out such that the water pump pliers 1 has the smallest possible opening width. Shown is a section line AA, which in FIG. 3 and FIG. 4 is explained in more detail.
  • FIG. 3 shows the water pump pliers 1 FIG. 2 in the starting position.
  • the locking piece 19 is arranged in the blocking position.
  • teeth not shown here are brought out of the positive engagement of the sawtooth, so that a translational displacement movement 5 is made possible within the elongated hole 15 between the first gun arm 2 and second gun arm 3.
  • the first forceps arm 2 has a longitudinal slot 24 in its transitional portion 13, wherein the second forceps arm 3 engages through the longitudinal slot 24 of the first forceps arm 2 in a form-fitting manner.
  • the operating lever 18 is moved by actuation in the release position.
  • the actuating lever 18 has been pivoted about a deflection point 25.
  • the locking piece 19 does not fall out of the first 2 and second 3 gun arm, the actuating lever 18 is retractable in a receptacle 26 within the first gun arm 2, wherein the locking piece 19 is fixed in position by means of guide holes 27 axially movable form-locking.
  • the guide holes 27 are shown here formed only on an underside 28 of the gun arm 2, but also in the second gun arm 3 and also in a top 29 of the first gun arm 2 is formed.
  • the actuating lever 18 has an extension 30, wherein the extension 30 comes to the underside 28 of the first gun arm 2 in the release position positively to the plant and thus limits the pivotal movement of the actuating lever 18 to the deflection point 25. Further, the actuating lever 18 engages under the locking piece 19 on a lens head 31, so that by actuation of the actuating lever 18, the locking piece 19 performs an axial movement. Further shown in FIG. 3 and FIG. 4 the respective circumferential struts 17 in the handle portion 7 of the first gun arm second
  • FIG. 5 is the locking piece 19 in the locked position, whereas in FIG. 6 the locking piece 19 is moved by actuation of the actuating lever 18 in a release position.
  • FIG. 6 shown is the sawtooth 16 of the elongated hole 15, wherein the locking piece 19 has teeth 32 which in FIG. 5 are positively engaged with the sawtooth 16 in engagement.
  • FIG. 3 and FIG. 4 can be seen that the actuating lever 18 is recessed or aligned approximately within the top 29 of the first gun arm 2, so that there is no risk of injury due to unnecessary snagging on the operating lever 18 results. Furthermore, the actuating lever 18 is thus protected against mechanical damage and at the same time therefore offer no points of attack for contamination, which is why even with intensive use an aesthetic overall impression of the water pump pliers 1 according to the invention remains.
  • the operating lever 18 in FIG. 7 in a side view. Good to see the extension 30 and a mounting hole 33 for carrying out a pivot pin, not shown, to allow the deflection point. Furthermore, the actuating lever 18 on an actuating side 34. On the side opposite the actuating side 34, the actuating lever 18 also has a receiving side 35, wherein in the receiving side 35, shown in FIG. 8 , A receiving opening 36 is arranged, which serves for the positive coupling with the locking piece not shown here. Furthermore, it can be seen that on the receiving side 35, a curved receiving surface 37 is arranged, so that at the actuation of a respective surface normal N shown here engages the locking piece, not shown here, at its lens head substantially orthogonal.
  • a helical compression spring 38 is arranged on the actuating side 34 of the actuating lever 18.
  • the helical compression spring 38 then comes in accordance FIGS. 3 and 4 between the extension 30 of the actuating lever 18 and the bottom 28 of the first gun arm 2 form fit to the plant and exerts a spring force on the actuating lever 18 on the locking piece 19.
  • the locking piece 19 with the lens head 31 in positive engagement with the receiving opening 36 of the actuating lever 18.
  • the locking piece 19 is locked in a bayonet-like manner in the receiving opening 36.
  • the locking piece 19 has teeth 32, which are then positively inserted with the not shown sawtooth profile of the slot of the second gun arm.
  • FIG. 10, 11 and 12 show a further embodiment of the present invention Wasserpumpenzange 1, wherein in turn in a head portion 9, 10, a framework 20 with recesses 21 and struts 22 is formed.
  • the actuating lever 18 itself has a fork head 39 which engages behind the lens head 31 of the locking piece 19 in a form-fitting manner. This makes it possible to form the locking piece 19 such that it according to FIG. 11 on a bottom 28 has a circular section 40.
  • FIG. 12 the positive engagement between actuating lever 18 and locking piece 19 is shown in more detail due to the clevis 39.
  • the clevis 39 engages behind the lens head 31 integrally formed on the locking piece 19 in a form-fitting manner.
  • the clevis 39 has guide slots 41, which engage behind the lens head 31 in a form-fitting manner and guide it fixed in position. Furthermore, a circular portion 40 is formed on a bottom 42, which then engages positively in a guide hole of the first gun arm and thus can transmit high forces to carry out the forceps movement here.
  • the locking piece 19 has a lateral surface 43, which then transmits forces in the locking position, in particular within the guide hole at the top of the first gun arm. Furthermore, the teeth 32 are arranged on the locking piece 19, which are positively engageable in the locking position with the sawtooth profile into engagement. Furthermore, the locking piece 19 has two parallel walls 44, wherein the teeth 32 are arranged on the walls 44 and the walls 44, the locking piece 19 in the release position and in the blocking position form fit through the slot between the tips of the sawtooth profile.
  • FIG. 13 shows the water pump pliers 1 according to the invention in a representation in which the two gun arms 2, 3 are moved towards each other. This results between the jaws 11, 12 such an angle, so that the distance a1 between the tips 45 of the jaws 11, 12 is always smaller than a distance parallel thereto a2 and a3, in the gripping region 46 between the jaws 11, 12th given is. This avoids that a gripped object from the jaws of the gun arm 2, 3 slips out.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Food-Manufacturing Devices (AREA)

Claims (17)

  1. Pince, notamment pince multiprise (1), comportant une première branche de pince (2) et une deuxième branche de pince (3), qui sont assemblées l'une à l'autre de manière à pouvoir tourner par l'intermédiaire d'un axe de rotation (4), une branche de pince (2, 3) comportant un trou oblong (15) avec un profil en dents de scie (16) conçu dans le trou oblong (15) et l'autre branche de pince (2, 3) étant conçue de manière à pouvoir tourner autour d'une pièce bloquante (19) agencée dans ledit trou oblong, la pièce bloquante (19) étant agencée de manière à pouvoir, dans une position libre, être déplacée dans le trou oblong (15), notamment en translation, et, dans une position bloquante, être bloquée par engrènement par concordance de formes dans le profil en dents de scie (16), la pièce bloquante (19) étant maintenue dans la position de verrouillage par une force de ressort, la première branche de pince (2) comportant une fente longitudinale (24) entre un côté supérieur (29) et un côté inférieur (28), la deuxième branche de pince (3) passant à travers la première branche de pince (2) dans la fente longitudinale (24), caractérisée en ce que la première branche de pince (2) comporte des trous de guidage (27) dans le côté supérieur (29) et dans le côté inférieur (28), la pièce bloquante (19) étant agencée de manière à pouvoir être déplacée axialement et à pouvoir tourner dans les trous de guidage (27), un levier d'actionnement (18) pouvant pivoter autour d'un point de renvoi (25) sur le côté supérieur (29) et la pièce bloquante (19) pouvant être déplacée en direction axiale, contre la force de ressort et par l'intermédiaire du levier d'actionnement (18), de la position de verrouillage à la position libre.
  2. Pince selon la revendication 1, caractérisée en ce que le levier d'actionnement (18) s'étend à partir d'un tronçon de transition, qui se trouve entre un tronçon de tête (9, 10) et un tronçon de préhension (7, 8) sur une branche de pince (2, 3), au moins en partie dans le tronçon de préhension (7, 8).
  3. Pince selon l'une des revendications 1 ou 2, caractérisée en ce que le point de renvoi (25) est formé par un axe transversal.
  4. Pince selon l'une des revendications 1 à 3, caractérisée en ce que la force de ressort de la pièce bloquante (19) est exercée par l'intermédiaire du levier d'actionnement (18) sur la pièce bloquante (19), un ressort, de préférence un ressort cylindrique de compression ou un ressort à lames, étant agencé notamment entre un tronçon d'actionnement et la branche de pince (2, 3) couplée au levier d'actionnement (18).
  5. Pince selon l'une des revendications 1 à 4, caractérisée en ce que le levier d'actionnement (18) comporte une tête fourchue (39), la tête fourchue (39) entourant la pièce bloquante (19) de manière à pouvoir être déplacée relativement à celle-ci, ou en ce que le levier d'actionnement (18) comporte une ouverture de logement excentrique (36), l'ouverture de logement (36) pouvant être couplée à la pièce bloquante (19) de manière à pouvoir être déplacée relativement à celle-ci.
  6. Pince selon la revendication 5, caractérisée en ce que la pièce bloquante (19) comporte une tête cylindrique bombée (31) qui est conçue d'une seule pièce, la tête cylindrique bombée (31) étant prise par derrière, par concordance de formes, par la tête fourchue (39) ou par l'ouverture de logement (36).
  7. Pince selon l'une des revendications 1 à 6, caractérisée en ce qu'une surface de logement courbée (37) est conçue sur le levier d'actionnement (18) pour prendre par derrière la tête cylindrique bombée (31), la courbure étant orientée de manière à s'éloigner des branches de pince (2, 3).
  8. Pince selon l'une des revendications 1 à 7, caractérisée en ce que la première branche de pince (2) comporte la fente longitudinale (24) dans son tronçon de transition (13), la deuxième branche de pince (3) passant avec son tronçon de transition (14) à travers la fente longitudinale (24), la deuxième branche de pince (3) comportant le trou oblong (15) avec le profil en dents de scie (16), la pièce bloquante (19) étant montée dans la première branche de pince (2) de manière à pouvoir être déplacée axialement et la première branche de pince (2) étant montée de manière à pouvoir tourner autour de la pièce bloquante (19).
  9. Pince selon l'une des revendications 1 à 8, caractérisée en ce que la première branche de pince (2) comporte sur son côté supérieur (29) au moins un logement (26) pour le levier d'actionnement (18).
  10. Pince selon la revendication 9, caractérisée en ce que le levier d'actionnement (18) comporte un prolongement (30) sur un côté d'actionnement (34), le prolongement (30) pénétrant dans le logement (26) du côté supérieur (29) et, dans une position libre, venant buter contre le côté inférieur (28).
  11. Pince selon la revendication 10, caractérisée en ce qu'un ressort cylindrique de compression (38) est agencé sur le prolongement (30).
  12. Pince selon l'une des revendications 1 à 11, caractérisée en ce que le trou de guidage (27) sur le côté inférieur (28) est conçu rond.
  13. Pince selon l'une des revendications 1 à 12, caractérisée en ce que la pièce bloquante (19) comporte un tronçon rond (40) sur son côté inférieur (28) et en ce que des dents (32) sont agencées dans une zone médiane, les dents (32) étant conçues de manière à correspondre au profil en dents de scie (16).
  14. Pince selon l'une des revendications 1 à 13, caractérisée en ce que la pièce bloquante (19) comporte une zone médiane, deux parois parallèles (44) étant agencées dans la zone médiane et les dents (32) dépassant des parois (44), les parois (44) étant à une certaine distance l'une de l'autre, distance qui correspond à l'écartement des pointes du profil en dents de scie (16) du trou oblong (15) de telle sorte que, dans la position libre, un glissement par concordance de formes à l'intérieur du trou oblong (15) est possible, les dents (32) dans la position bloquante pouvant être amenées en prise, dans une position fixe et par concordance de formes, avec le profil en dents de scie (16).
  15. Pince selon la revendication 14, caractérisée en ce que la longueur des parois (44) correspond au moins à l'écartement de deux pointes du profil en dents de scie (16).
  16. Pince selon l'une des revendications 1 à 15, caractérisée en ce que les branches de pince (2, 3) sont fabriquées par une technique de forgeage.
  17. Pince selon l'une des revendications 1 à 16, caractérisée en ce que les branches de pince (2, 3) comportent un tronçon de préhension (7, 8), une ossature (20) étant conçue dans la zone de préhension, et/ou en ce qu'un renfort (17) est conçu dans le tronçon de préhension (7, 8) de manière à en faire le tour au moins en partie.
EP20130156907 2012-03-08 2013-02-27 Pince avec levier d'actionnement Active EP2636489B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202012100825U DE202012100825U1 (de) 2012-03-08 2012-03-08 Wasserpumpenzange mit Betätigungshebel

Publications (3)

Publication Number Publication Date
EP2636489A2 EP2636489A2 (fr) 2013-09-11
EP2636489A3 EP2636489A3 (fr) 2014-01-15
EP2636489B1 true EP2636489B1 (fr) 2014-12-03

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EP (1) EP2636489B1 (fr)
CN (1) CN103302606B (fr)
DE (1) DE202012100825U1 (fr)
ES (1) ES2527278T3 (fr)

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CN106475922B (zh) * 2015-08-27 2019-01-15 上海美瑞实业有限公司 钳口平行移动的快调钳
WO2017184671A1 (fr) * 2016-04-19 2017-10-26 Stanley Black & Decker, Inc. Pince réglable
CN108422343A (zh) * 2017-02-15 2018-08-21 杭州巨星科技股份有限公司 一种可调钳
US10661414B2 (en) * 2018-02-21 2020-05-26 Snap-On Incorporated Tool with handle offsets
CN108405976B (zh) * 2018-03-12 2019-09-03 温州茂睿机械科技有限公司 一种机器人使用的钢丝钳机械手

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH257808A (de) * 1946-03-27 1948-10-31 Wittmann Robert Schnellverstellbarer Schlüssel für Röhren, Stangen usw.
DE3207584A1 (de) * 1982-03-03 1983-09-15 Ernst Dr. 5608 Radevormwald Mickenhagen Wasserpumpenzange
DE3303369A1 (de) 1983-02-02 1984-08-02 Knipex-Werk C. Gustav Putsch, 5600 Wuppertal Wasserpumpenzange
DE9113870U1 (de) * 1991-08-08 1992-12-10 Knipex-Werk C. Gustav Putsch, 5600 Wuppertal Zange mit zwei Zangenschenkeln
DE19806653A1 (de) * 1998-02-18 1999-08-19 Wegerhoff H Alarm Werkzeug Rohrzange
ES1043181Y (es) * 1999-05-03 2000-04-01 Super Ego Tools Tenaza ajustable perfeccionada.
CN2383622Y (zh) * 1999-07-26 2000-06-21 浙江万达工具有限公司 榫槽水泵钳
CN2451292Y (zh) * 2000-11-27 2001-10-03 仇建平 快速多功能水泵钳
GB2416510B (en) * 2003-04-02 2006-09-06 Irwin Ind Tool Co Quick adjusting pliers
DE10343412A1 (de) * 2003-05-22 2004-12-09 Knipex-Werk C. Gustav Putsch Kg Einhandbetätigbare Zange
DE102005035019A1 (de) * 2004-07-28 2006-03-23 Tassilo Priebisch Verstellbare Greifzange
DE202004012545U1 (de) * 2004-08-11 2004-10-14 Priebisch, Tassilo Greifzange mit auf Daumendruck verstellbarer Maulweite
CN201086256Y (zh) * 2007-08-30 2008-07-16 文登威力高档工具有限公司 一种自调水泵钳

Also Published As

Publication number Publication date
CN103302606A (zh) 2013-09-18
DE202012100825U1 (de) 2013-06-11
EP2636489A2 (fr) 2013-09-11
EP2636489A3 (fr) 2014-01-15
CN103302606B (zh) 2015-07-08
ES2527278T3 (es) 2015-01-22

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