EP0774324A2 - Pince avec deux bras - Google Patents

Pince avec deux bras Download PDF

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Publication number
EP0774324A2
EP0774324A2 EP97100103A EP97100103A EP0774324A2 EP 0774324 A2 EP0774324 A2 EP 0774324A2 EP 97100103 A EP97100103 A EP 97100103A EP 97100103 A EP97100103 A EP 97100103A EP 0774324 A2 EP0774324 A2 EP 0774324A2
Authority
EP
European Patent Office
Prior art keywords
pliers
hinge pin
leg
area
sectional area
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.)
Granted
Application number
EP97100103A
Other languages
German (de)
English (en)
Other versions
EP0774324A3 (fr
EP0774324B1 (fr
Inventor
Ralf Putsch
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.)
Knipex Werk C Gustav Putsch KG
Original Assignee
Knipex Werk C Gustav Putsch 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.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25958501&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0774324(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Knipex Werk C Gustav Putsch KG filed Critical Knipex Werk C Gustav Putsch KG
Publication of EP0774324A2 publication Critical patent/EP0774324A2/fr
Publication of EP0774324A3 publication Critical patent/EP0774324A3/xx
Application granted granted Critical
Publication of EP0774324B1 publication Critical patent/EP0774324B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 invention relates to a pair of pliers with two pliers legs, which are connected to one another by means of a hinge pin, wherein the pliers mouth is formed above the crossing region and handle sections are formed on the pliers legs below the crossing region, in which one section is used to change the size of the pliers mouth in the crossing region relative to the other Pliers limbs gradually adjustable pliers limbs penetrate a free space of the other pliers limb, the hinge pin being guided in a bore in the other pliers limb and being displaceable transversely to the longitudinal plane of the pliers and having two cross-sectional areas adjacent in the axial direction of the hinge pin, one of which, in the coupled state, engages in positive engagement with the profiled flanks of a longitudinal slit in the crossing area of one pliers leg occurs and the thinner cross-sectional area is freely displaceable in the longitudinal slit.
  • a pair of pliers of this type is known from EP 0 116 305, the hinge pin being composed of a profiled cross-sectional area for positive engagement in correspondingly shaped flanks of a pair of pliers and of a much thinner cross-sectional area. At its end, the thinner cross-sectional area is formed with a stop collar which, when the hinge pin is actuated in the axial direction, acts on an outside of another pliers leg facing it.
  • the object of the present invention is to improve a generic pliers with regard to the hinge pin.
  • pliers of the generic type are created in which the thinner cross-sectional area consists of a rectangular surface, the narrow sides of the rectangular surface being rounded and forming peripheral support or guide zones for the hinge pin 4 on the bore wall of the bore of the leg longitudinal walls.
  • the supporting and guiding function of the hinge pin is assigned to the rounded narrow sides, with an overall rectangular configuration.
  • the hinge pin experiences a stop in the region of the profiled flanks of the one pliers leg when actuated.
  • the procedure here is such that the pliers leg, which has the space for pushing through the pliers leg, has a recess arranged on the actuating side of the hinge pin, which receives the hinge pin head when the hinge pin is actuated, and that an actuating stop which is recessed in depth is provided for the hinge pin head.
  • the structural means are simple and functional. It is particularly advantageous that the pivot pin head occurs when actuated below the level of the pliers leg side having the recess. In the basic position, the joint pin head only slightly extends beyond the plane of the pliers leg side having the recess, which makes it easier to feel the joint pin head.
  • the profiled flanks of the one leg of the pliers are designed as a stop.
  • a spring load has been found of the hinge pin from the side opposite the hinge pin head is particularly advantageous, whereby the hinge pin is always shifted back into its basic position after the adjustment of the pliers jaw width has taken place. There is thus always a positive connection between the hinge pin and the pliers leg having the profiled flanks in the basic position.
  • the arrangement can also be such that the hinge pin can be fixed in an adjustable manner by means of a latching part acting essentially perpendicular to its direction of displacement, which defines the basic position of the hinge pin. A displacement of the hinge pin for the purpose of changing the pliers jaw width thus takes place against the action of a locking part, which can be provided in the region of the pliers leg having the recess.
  • the latching part is advantageously designed as a spring-loaded ball which engages in a corresponding recess in the hinge pin.
  • the hinge pin has an intermediate section between the positive-locking cross-sectional area and the hinge pin head, the intermediate section having a constant cross section.
  • the cross section of the intermediate section preferably corresponds to the clear width between the profiled flanks of the one leg of the pliers. This ensures that the hinge pin is always secured against rotation and tilting, regardless of its axial position.
  • the hinge pin head is circumferentially substantially coincident with an annular envelope surface of the hinge pin, which has the consequence that the hinge pin, regardless of it Operational position, secure storage in the axial holes of the fork ends of the other leg of the pliers experiences.
  • the recess arranged on the actuating side of the other pliers leg is funnel-shaped, this recess merging into the area of the axial bore. This configuration enables the hinge pin to be displaced in terms of handling in a release position, in order to change the clear width of the pliers mouth. It proves to be particularly advantageous here to design the recess eccentrically to the joint pin head, whereby the recess has an ergonomically more favorable shape, which results in improved handling when displacing the joint pin.
  • the recess has a thumb size.
  • the latter can also be slightly oval and, as already mentioned, eccentric to the hinge pin. This enables optimal rolling of the underside of the thumb when the hinge pin is moved.
  • the hinge pin head is structured on the upper side. The latter is designed to be more grippy due to the above-mentioned measure and is therefore favorable in terms of handling.
  • the joint pin head can also be designed as a round button part which is spherically curved upwards. In an advantageous further development, the joint pin head essentially completely fills the opening in the recess in the depressed state.
  • the joint pin head thus has a diameter corresponding to the opening in the recess. Furthermore, it is provided that the hinge pin head is formed separately, which is advantageously realized in that the The pivot pin head is screwed onto the base of the pivot pin. Another pin connection can also be provided.
  • the recess provided in the other pliers leg is of such a free diameter, or the joint pin head is designed with such a dimension in relation to the free diameter of the recess that even when the joint pin head is depressed, a clearing gap on the profiled Flanks of one leg of the pliers remain.
  • This measure proves to be advantageous, for example, if soiling occurs in the area of the profiled flanks of the one leg of the pliers. The contamination can practically not prevent the actuating head from being completely depressed. They are either pushed into the spaces between the tooth profiles, which open when the hinge pin head is pressed down, or between the edge of the hinge pin head and the edge of the surrounding recess.
  • the pivot pin head in the projection in the area of its largest diameter covers a tooth of the flanks of the pliers leg to about half a tooth depth.
  • the contact area of the joint pin head on the upper transverse surface of the tooth profile, which forms the stop for the joint pin head when pressed down, is thus kept very small. This is conducive to the removal of dirt in the sense described above.
  • the pivot pin head is formed in its base from the overlay of a rounded and rectangular surface, such that the width of the rectangle corresponds approximately to the free distance between the tooth flanks, but its longitudinal extent, the diameter of the rounded area.
  • the section of the hinge pin or the hinge pin head which corresponds to the rectangular area, extends only within the free area between the tooth flanks of the one leg of the pliers.
  • the rounded or circular surface is formed by the part of the hinge pin, which also forms the protrusion with respect to the tooth profile on the tooth flanks, which produces the abovementioned stop when depressed.
  • the narrow sides of the rectangular surface are also preferably rounded. These narrow sides interact directly with the other leg of the pliers in which the recess is formed. For this purpose, it is expedient that the radius of the circumferential line of the narrow sides corresponds approximately to the radius of the recess.
  • a protrusion of the rectangular area over the circular area in profile - ie in height - the adjacent circular section of the Joint head surpasses.
  • the pliers 1 have two mutually intersecting pliers legs 2 and 3. The latter are connected to one another in an articulated manner in the region of intersection by means of a hinge pin 4.
  • the pliers legs 2 and 3 each form a grip section 7 and 8 on the side above and below.
  • the joint of the pliers jaw M is at an angle of approximately 45 ° to the handle sections 7, 8.
  • the pliers leg 2 passes through a free space F of the pliers leg 3 corresponding to its thickness.
  • the free space F is designed as a slot lying in the leg pivot plane, which is approximately the same on both sides has thick leg longitudinal walls 9. The latter are of greater width than that of the handle section.
  • the penetrating pliers leg 2 also has a width in the area of the free space F that clearly exceeds the width of the grip section 7. This passage area is designated 10. It is approximately at right angles to the jaw 5.
  • the pincer leg 3 can be adjusted in stages.
  • the corresponding adjustment device consists of a longitudinal slot 11 penetrated by the hinge pin 4 in the penetrating pliers leg 2.
  • the longitudinal slot 11 is profiled on its longitudinal slot flanks 12 running parallel to one another. It is a sawtooth-like profile.
  • the individual tooth gaps are designated by 13 and, like the hinge pin 4, extend transversely to the pivot actuation plane of the pliers legs 2, 3.
  • the joint pin 4, which is guided in a bore 14 which is congruent with the longitudinal slot 11, is designed to be essentially rotationally symmetrical, viewed axially.
  • the hinge pin 4 is composed of a cylindrically shaped hinge pin head 15 and a hinge pin base part 16, the hinge pin head 15 being firmly connected to the hinge pin base part 16 by means of a screw 17. Both parts have essentially the same diameter.
  • the hinge pin base 16 is symmetrically flattened on diametrically opposite sides, this area a being delimited on the one hand by the hinge pin head 15 and on the other hand by a hinge pin collar 18 of the hinge pin base 16.
  • the thickness of the base part 16 of the hinge pin in the region a corresponds to the clear distance y of the longitudinal slot 11 between the longitudinal slot flanks 12, the length of the region a roughly corresponding to the addition of the width of the passage region 10 of the pliers leg 2 and a leg longitudinal wall 9 of the pliers leg 3.
  • two teeth 21 extending from the hinge pin collar 18 are formed on the flattened sides 19, 20 for positive engagement in the tooth gaps 13 of both longitudinal slot flanks 12.
  • the length of the teeth 21 corresponds approximately to three quarters of the width x of the longitudinal slot flanks 12.
  • the cross-sectional area a of the hinge pin base 16 designed in this way thus serves on the one hand to achieve the positive connection between the hinge pin 4 and the pliers leg 2 and on the other hand when the hinge pin 4 is displaced in the direction z to secure the hinge pin 4 against self-rotation.
  • a recess 22 extending from the bore 14 is arranged in the longitudinal leg wall 9 of the tong leg 3.
  • This recess 22 is realized in the form of a countersink, leaving a remaining section of the bore 14.
  • the recess 22 is formed with a circular shape.
  • the hinge pin 4 is under spring load, that is in the sense of maintaining the positive engagement of the profiles.
  • the hinge pin 4 is acted upon by a leaf spring 23 from the free end having a full cross section.
  • the latter is located on the outside of the longitudinal leg wall 9 there.
  • the area of assignment of the leaf spring 23 has a groove 24 corresponding to its shape for its recessed assignment.
  • the leaf spring 23 takes a course adapted to the pliers leg 3, the end region of the leaf spring 23 being angled in the direction of the hinge pin 4. As can be seen in FIG. 7, the free end of the leaf spring 23 overlaps a sector-shaped depression 25 on the end face of the joint pin 4.
  • the sector shape takes into account the pivoting angle requirement of the pliers legs 2, 3, taking into account the fact that the joint pin 4 is also non-rotatable in the uncoupled state the longitudinal slot 11 carrying pliers legs 2 is held.
  • a relative movement, ie rotary movement of the Hinge pin 4 takes place only in relation to the penetrated pliers leg 3.
  • a screw 26 or another fastening element which penetrates the other end is used to fix the leaf spring 23.
  • the jacket wall of the joint pin head 15 assumes support and guidance within the bore 14 of the right-hand side longitudinal wall 9 and the jacket wall sections 16 'support and guidance on the bore wall of the other side. This ensures that the hinge pin 4 is tilt-proof in any position.
  • the handling of the pliers is as follows: to cancel the mouth width previously used, it is only necessary to move the hinge pin 4 axially from the side having the hinge pin head 15, ie transversely to the plane of movement of the pliers legs 2, 3 against spring action.
  • the joint pin head 15 is received by the recess 22 and the impact of the joint pin head 15 on the profiled longitudinal slot flanks 12 (the upper end face) of the longitudinal slot 11 is the positive engagement between the teeth 21 of the hinge pin 4 and the tooth gaps 13 of the longitudinal slot 11 are canceled.
  • the hinge pin 4 can now be moved together with the pliers limb 3 displacing it in the direction of extension of the longitudinal slot 11.
  • the spring 23 brings about the desired positive engagement of the profiles again, the hinge pin collar 18 serving as a stop on the longitudinal slot flanks 12.
  • FIGS. 8 to 11 A further embodiment of the hinge pin is illustrated with reference to FIGS. 8 to 11. Insofar as the same parts are not explained separately, reference is made to the above statements.
  • the recess 22 or, more precisely, its smallest diameter d is selected such that when the hinge pin 4 is depressed, a viewing gap s (cf. also FIG. 9) remains on the profiled longitudinal slot flanks 12.
  • a viewing gap s cf. also FIG. 9
  • dirt particles located below the protruding area U of the button part 27 and the end face 28 of the longitudinal slot flank 12 can be pushed into the intermediate spaces 29 or thrown upwards.
  • the button part 27 covers a tooth of the longitudinal slot flanks 12 in the projection in the region of its largest diameter d1 approximately at half the tooth depth.
  • the joint bolt head 15 consists in the embodiment of FIGS. 8 to 11 in its base from the Superimposing a rounded and a rectangular surface.
  • the rounded surface is formed by the separate button part 27.
  • the overlay is further such that the width of the rectangle approximately corresponds to the free distance y between the longitudinal slot flanks 12, but the longitudinal extent exceeds the diameter d1 of the button part 27.
  • the narrow sides 30, 31 of the joint pin head 15 are rounded.
  • the rounding corresponds to the inner free rounding of the recess 22.
  • the recess 22 is composed in detail of a cone section 32, which has an angle of inclination of approximately 30 °, and a cylindrical section 33.
  • the narrow sides 30, 31 are pulled up so that they are in any case in the edge region in profile, ie. H. in terms of height, exceed the border area 34 of the button part 27, protrusion U1.
  • the button part 27 is arranged sunk in the hinge pin 4 with respect to the narrow sides 30, 31. In the depressed position, which is also shown in FIG. 10, it is clear that this projection U1 prevents the hinge pin 15 or an edge region 34 of the button part 27 from being pushed under the bore 14 of the pliers leg 9 when displaced.
  • the intermediate section Z between the cross-sectional area (teeth 21) that generates the positive locking and the joint pin head 15 with a constant cross section even continues in the region of the button part 27 and at least partially projects above it, namely on the narrow sides 30 and 31.
  • the recess 22 shows a modification with regard to the recess 22 which surrounds the button part 27.
  • the recess 22 is designed so that an elliptical edge line 35 results.
  • the ellipse is irregular insofar as the focal points are generated by circles of different sizes and the ellipse in the lower area here resembles a parabola, in the upper area essentially an exact semicircle.
  • the button part 27 is arranged concentrically with a focal point or a center point of the semicircle line 35a.
  • the boundary line 35 is also not pronounced in the area of the strongest curvature of the parabola, due to a penetration with an elongated hole 36 in the pliers leg 3.
  • the recess 37 of the embodiment of the pliers 1 shown in FIG. 15 is of exactly circular design, the center point AM being arranged eccentrically to the center point GM of the hinge pin 4.
  • the recess 37 there is an ergonomically very advantageous design of the recess 37, since the latter when the hinge pin is displaced 4 offers an optimal support for the underside of the thumb.
  • the recess 37 in an elliptical shape (similar to the recess shown in FIG. 12), the upper region of the ellipse being arranged concentrically with the center point GM of the hinge pin 4.
  • the joint pin head 38 is designed as a round button part 39 which is spherically curved upwards.
  • the recess 22 is composed of a conical section 32 and a cylindrical section 33.
  • the articulation pin head 38 in the depressed state essentially completely fills the cylindrical section 33 of the recess 22 in its projection.
  • FIGS. 18 and 19 show a modification with regard to the design of the joint pin head 40 and the recess 22 which surrounds the joint pin 4.
  • the recess 22 has a cone section 32 and a cylindrical section 33, but the cone section 32 has an inclination angle of approximately 60 °.
  • the joint pin head 40 is designed as a head part 41 structured on the upper side. This structuring is composed of a plurality of circular sections arranged concentrically and offset in height from one another, so that a step pyramid-shaped surface of the head part 41 is formed.
  • This design of the head part 41 serves primarily for the safe handling of the pliers 1 when the jaw width changes. Slipping of the thumb with a dirty joint pin head 40 is thus successfully counteracted.
  • the profiled flanks form a limit stop for the joint pin 4 to be actuated, which is supported with the underside of the joint pin head 38 or 40 on the longitudinal slot flanks 12 mentioned.
  • the hinge pin 4 has none of the hinge pin heads mentioned.
  • the displacement of the hinge pin 4 is limited only by the limited indentation of the actuating thumb.
  • the longitudinal slot flanks 12 serve as limit stops, with the thumb underside corresponding to the underside of an articulated bolt head.
  • hinge pins 4 mentioned in the previously mentioned exemplary embodiments are all loaded from the side opposite the hinge pin head by means of the spring 23 in the direction of the basic position.
  • FIGS. 22 to 24 show an alternative to this.
  • the hinge pin 4 can be fixed by means of a latching part 42 acting perpendicular to the direction of displacement of the hinge pin 4.
  • This locking part 42 is composed essentially of a compression spring 43 and a locking ball 44.
  • the compression spring 43 is in this case mounted in the longitudinal leg wall 9 opposite the recess 22 in a blind bore 45 which is open in the direction of the bore 14 and loads the ball 44 in the direction of the cylindrical end section of the pivot pin 4.
  • the pivot pin 4 is in this area with a corresponding Provide recess 46 for entry of ball 44 in the basic position.
  • the basic position of the hinge pin 4 is thus clearly defined. An unintentional release of the positive connection between the teeth 21 of the hinge pin 4 and the profiled longitudinal slot flanks 12 is hereby successfully counteracted.
  • the hinge pin 4 is axially displaced from the side having the hinge pin head 38, the latching ball 44 disengaging from the recess 46 (cf. FIG. 24).
  • the pivot pin 4 is moved back into the basic position manually by means of thumb actuation.
  • the hinge pin 4 is moved back until the locking part 42 fixes the hinge pin 4.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the other pliers leg 3 is formed on one side on the actuating side of the pivot pin 4 with a recess 22 into which the pivot pin head 15, 38, 40 can be accommodated when actuated.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which an actuating stop, which is recessed in depth, is provided for the joint pin head 15, 38, 40.
  • Object of the invention alone or in connection with the previously explained objects of importance is also a pair of pliers in which the profiled flanks form the stop.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which a spring loading of the hinge pin 4 is given from the side opposite the hinge pin 15, 38, 40.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the hinge pin 4 is adjustably fixable by means of a locking part 42 which acts essentially perpendicular to its direction of displacement.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which the locking part 42 is a spring-loaded ball 44.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the intermediate section Z fills the area between the cross-sectional area which creates the form-locking element and the hinge pin 15 with a constant cross-section.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers, in which the joint pin head 15, 38, 40 is circumferentially substantially coincident with an annular envelope surface of the joint pin 4.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the other pliers leg 3 is formed on one side with a recess 22 on the actuating side of the pivot pin 4.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which the joint pin head 15, 38, 40 can be received in the recess 22 when actuated.
  • the invention which is important alone or in connection with the previously explained objects, also includes a pair of pliers in which the recess 22 is funnel-shaped.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the recess 22 is formed eccentrically to the joint bolt head 15, 38, 40.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the recess 22 is approximately the size of a thumb.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which the joint pin head 15, 38, 40 is structured on the top side.
  • Object of the invention is also a pair of pliers in which the joint pin head 15, 38, 40 in the depressed state substantially completely fills the opening in the recess 22.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which a narrowest diameter of the recess 22 exceeds the diameter (possibly distance narrow sides 30, 31) of the joint bolt head 15, 38, 40.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the joint pin head 15, 38, 40 is formed separately.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the pivot pin head 15, 38, 40 is connected to a pivot pin base 16 to form the pivot pin 4.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which the recess 22 with such a free diameter d or the joint pin head 15, 38, 40 with respect to the free diameter d
  • the recess 22 is formed with such a dimension that a viewing gap s remains on the profiled longitudinal slot flanks 12 of the one pliers leg 2 even when the hinge pin 4 is depressed.
  • the subject of the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the joint bolt head 15, 38, 40 projects a tooth of the longitudinal slot flank (12 in a projection in the region of its largest diameter with respect to the longitudinal slot flanks 12 ) of a pair of pliers legs 2 to about half the tooth depth.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the joint bolt head 15, 38, 40 is formed in its base area from the overlay of a rounded and a rectangular surface.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which a longitudinal extension of the joint pin head 15, 38, 40 exceeds the diameter d1 of the rounded surface.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which the radius of the circumferential line of the narrow sides 30, 31 corresponds approximately to the radius of the recess 22 in its narrowest diameter d.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which a protrusion U1 of the rectangular surface over the circular surface in profile (in height) exceeds the adjacent circular section 34 of the joint head 15.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the circular section is formed by the button part 27, 39 countersunk in the joint pin head 15, 38, 40.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers, in which the recess 22 is formed so that an elliptical edge line 35 results, the button part 27, 39 concentric with a focal point P is arranged.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the edge line 35 is composed of a semicircular arch 35a and a parabola 35b, the curvature being stronger in a lowermost reversal point of the parabola 35b is than the curvature of the semicircular arc 35a.
  • the invention which is important alone or in connection with the previously explained objects, is also a pair of pliers in which the button part 27, 39 is arranged concentrically to the center of the semicircular arc 35a.
  • the invention which is of importance alone or in connection with the previously explained objects, is also a pair of pliers in which the edge line 35 of the recess 22 is not formed in the region of the greatest parabolic curvature due to a penetration of the recess (22) with a slot-like longitudinal recess 36 in the pliers leg 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Table Equipment (AREA)
  • Surgical Instruments (AREA)
  • Food-Manufacturing Devices (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
EP97100103A 1991-08-08 1992-08-03 Pince avec deux bras Expired - Lifetime EP0774324B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE9109830 1991-08-08
DE9109830U 1991-08-08
DE9113870U 1991-11-07
DE9113870U DE9113870U1 (de) 1991-08-08 1991-11-07 Zange mit zwei Zangenschenkeln
EP92113241A EP0528252B1 (fr) 1991-08-08 1992-08-03 Pince avec deux bras

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP92113241.1 Division 1992-08-03
EP92113241A Division EP0528252B1 (fr) 1991-08-08 1992-08-03 Pince avec deux bras

Publications (3)

Publication Number Publication Date
EP0774324A2 true EP0774324A2 (fr) 1997-05-21
EP0774324A3 EP0774324A3 (fr) 1997-06-11
EP0774324B1 EP0774324B1 (fr) 2002-05-08

Family

ID=25958501

Family Applications (2)

Application Number Title Priority Date Filing Date
EP92113241A Expired - Lifetime EP0528252B1 (fr) 1991-08-08 1992-08-03 Pince avec deux bras
EP97100103A Expired - Lifetime EP0774324B1 (fr) 1991-08-08 1992-08-03 Pince avec deux bras

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP92113241A Expired - Lifetime EP0528252B1 (fr) 1991-08-08 1992-08-03 Pince avec deux bras

Country Status (6)

Country Link
US (3) US5461951A (fr)
EP (2) EP0528252B1 (fr)
JP (1) JP3415638B2 (fr)
AT (1) ATE159447T1 (fr)
DE (3) DE9113870U1 (fr)
ES (2) ES2173344T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2786119A1 (fr) * 1998-11-19 2000-05-26 Bost Garnache Ind Pince a au moins deux positions de reglage
WO2010102986A1 (fr) * 2009-03-11 2010-09-16 Rennsteig Werkzeuge Gmbh Serre-tube à mâchoires à ouverture réglable

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9308518U1 (de) * 1993-06-08 1994-10-20 Knipex-Werk C. Gustav Putsch, 42349 Wuppertal Zange mit zwei Zangenschenkeln und einem Zangenmaul
DE19714861C1 (de) * 1997-04-10 1998-08-27 Andreas Maier Gmbh & Co Spannvorrichtung
US6216568B1 (en) 1998-08-20 2001-04-17 Gerald P. Breiling Pliers for removing knockouts
DE19909224B4 (de) * 1999-03-03 2012-11-08 NWS Germany Produktion W. Nöthen e.K. Montagezange mit verstellbarer Maulweite
US7086312B1 (en) 2001-12-28 2006-08-08 Kenneth Guy Tortolani Parallel jaw locking toggle wrench/pliers with economic/ergonomic handles
AUPQ316699A0 (en) * 1999-09-28 1999-10-21 Petts, Andax Wrench
DE20012818U1 (de) * 2000-07-25 2001-03-01 Eduard Wille Gmbh & Co, 42349 Wuppertal Greifzange mit verstellbarer Maulweite
US6658738B1 (en) 2001-11-02 2003-12-09 Thomas A. King Pipe and tubing cutter
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CN104669150A (zh) * 2015-02-03 2015-06-03 张广山 一种强力切线钳
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DE102020103446A1 (de) 2020-02-11 2021-08-12 Knipex-Werk C. Gustav Putsch Kg Zange
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FR2786119A1 (fr) * 1998-11-19 2000-05-26 Bost Garnache Ind Pince a au moins deux positions de reglage
WO2010102986A1 (fr) * 2009-03-11 2010-09-16 Rennsteig Werkzeuge Gmbh Serre-tube à mâchoires à ouverture réglable

Also Published As

Publication number Publication date
US5676029A (en) 1997-10-14
EP0774324A3 (fr) 1997-06-11
EP0528252B1 (fr) 1997-10-22
DE9113870U1 (de) 1992-12-10
US5461951A (en) 1995-10-31
US5845551A (en) 1998-12-08
EP0528252A1 (fr) 1993-02-24
ATE159447T1 (de) 1997-11-15
DE59208981D1 (de) 1997-11-27
JPH05192874A (ja) 1993-08-03
DE59209955D1 (de) 2002-06-13
EP0774324B1 (fr) 2002-05-08
ES2108720T3 (es) 1998-01-01
ES2173344T3 (es) 2002-10-16
JP3415638B2 (ja) 2003-06-09

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