Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
  • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
  • B26B17/00—Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact
• • 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
  • B25B7/08—Joints with fixed fulcrum

Definitions

• the invention relates to a pair of pliers such as in particular cutting pliers or crimping pliers, with a first and a second pliers limb, which pliers legs intersect with respect to their longitudinal extent in a trade, forming on one side of the trade cooperating work areas and on the other side of the trade grip leg wherein the pliers legs are only rotatably connected to one another relative to one another and cooperating formations are provided on both pliers limbs for rotation guidance, wherein furthermore a rotation axis of the pliers limbs lies outside and on the working area side of the protrusions and beyond that a pliers limb in the trade in each case, d. H. on both sides, is covered by a firmly connected to the other pliers legs grip part.
• the known pliers already provides a very high translation, it is still complicated in terms of production. Although the areas of the forceps arms which penetrate one another in the contact area of the forceps arms, in the trade, provide the necessary anchoring of the forceps arms against each other, on the other hand they are complicated in terms of manufacturing due to their mutual permeation and allow the desired stability to be achieved only with great effort. The overlap is given only with respect to a comparatively small area. In addition, it is island-like isolated. Based on the above-described prior art, the invention has the object to provide a pair of pliers such as particular cutting pliers or crimping tool, which is advantageous in a high translation of the gripping force, also with regard to the forces acting in the industry built.
• Pliers leg is formed of the same material.
• the other pliers leg is then longitudinally slotted in this regard in the commercial area.
• the longitudinal slot is suitably significantly longer, for example, twice or more, as it corresponds to the width of the slot-passing through the forceps leg - in this enforcement area.
• a corresponding extension of the slot can be made due to heating and then reduced again by upsetting.
• Due to the shapes of the pliers legs are then inextricably linked together.
• the engagement part is formed as a separate part. This facilitates assembly without the need for heat. It can be a succession of the individual pliers parts including the cross-over part and the required firm connection of the parts are performed on the same side of the pliers.
• connection with the other pliers limbs may be provided in a form-fitting or clamping manner.
• the engagement part is releasably connected to the other pliers limb, for example by a screw connection.
• riveting is an option. The latter measures are to be carried out in each case in the same working direction in which the superposition of the individual parts takes place. This even at a riveting, since the rivets can be placed first, then the other parts and finally the protruding rivet heads can be deformed from the same side from which the juxtaposition of the parts is done.
• the fastening means such as the said screws and / or rivets are also arranged outside of the formations. They also do not serve for rotary guidance. They are merely for fixing by means of the separate override part. They always extend correspondingly in the same pliers leg.
• the encroachment part can be made very simple in terms of the function mentioned.
• a plate part preferably with a completely same cross section. The latter with the exception of about the connection areas, so the holes for screws or a possible positive locking design.
• the formations it is advisable to form them in a circular section.
• the formations may in one variant and consist of a rib on the one pliers limb and a circular section-shaped groove adapted to the rib on the other pliers limb. The rib moves accordingly with a forceps movement in the groove.
• the formations on both pliers limbs may also be formed like a groove and provided in the formations, each designed to roll on both formations rolling body may be provided. For example, a ball bearing.
• a very low-friction interaction of the pliers legs in the trade can be achieved.
• the pliers legs are biased by a spring in the open position of the pliers.
• a spring in the covering area of the pliers limbs, ie in the industry, which is supported partly on one and partly on the other pliers limb.
• this spring may be a leg spring. It can be suitably mounted so that it is not visible from the outside.
• the one pliers limb is supported on the other pliers limb in the overlapping region by means of a plastic part.
• the plastic part can accordingly be arranged on the underside of the gripping part, especially of the plate part.
• a plastic part and a metal part may be provided.
• the insert is also important for the fact that the overlap part with a suitable bias attach. This is advantageous for a desired backlash in the joint area.
• this can also be achieved by a correspondingly integrally molded heel of the grip part in this area.
• Fig. 1 is a perspective view of the pliers
• FIG. 2 is a plan view of the forceps of Figure 1, in the closed position, with representation of the concealed Aus formations, with removed attack grip part.
• FIG. 3 shows an illustration according to FIG. 2, with the pliers open
• FIG. 4 shows a cross section through the article according to FIG. 3, cut along the line IV-IV, but with an overlapping part;
• 5 shows a cross section through the article according to FIG. 3, cut along the line VV;
• Fig. 6 is a side view of the forceps of FIG. 1;
• FIG. 7 shows a side view of the pliers according to FIG. 1, opposite side to the illustration according to FIG. 6;
• Fig. 8 is an illustration of a pliers limb, as seen on the moldings
• Fig. 9 is an illustration of the other pliers limb, as seen on the moldings.
• Fig. 10 is a bottom view of the gripping part
• FIG. 11 shows a section through the object according to FIG. 10, cut along the line XI-XI;
• FIG. 13 shows a cross section through the article according to FIG. 12, cut along the line XIII-XIII.
• a pair of pliers 1 which is designed as a cutting pliers.
• the pliers 1 has a first pliers limb 2 and a second pliers limb 3.
• the pliers legs 2, 3 intersect with respect to their longitudinal extension in a trade 4.
• the pliers legs 2, 3 are arranged rotatably relative to one another, between a closed position according to FIGS. 1, 2 and an open position according to FIG. 3.
• the rotatability is in this case designed such that a rotation axis A is given on the working area side of the trade 4, this being a virtual axis.
• Formations for rotating guide are formed on both pliers legs 2, 3, namely, as shown in FIGS. 8 and 9, on one pliers limb 2 a groove 7 and on the other pliers limb 3 a rib 8.
• the curved guide of the protrusions 7, 8 corresponds to a circle with radius around the axis of rotation A.
• the one pliers leg 3 is further overlapped in the region of the trade 4 on both sides by the other pliers limb 2 by means of an overlapping part 9.
• the gripping part 9 formed directly from the forceps leg 2 itself, and the top side of a separate engagement part 9. In further detail, this also results from FIGS. 4 and 5.
• the separate grip part 9 is fixedly connected to the second pliers leg 2 in the embodiment by two screws 10. Both overlapping parts 9 are arranged across with respect to the molding 7 or 8.
• the engagement part 9 may also be formed of the same material with the pliers leg 2.
• the pliers leg 3 in the field of trade on both sides of a uniform material overlap of the second pliers leg 2 ü- covered.
• the trained in the embodiment as a separate part engagement part 9 is formed as a plate part, specifically in the embodiment with a diamond-shaped floor plan.
• the narrow sides are assigned here to the side edges of the pliers.
• the long sides of the rhomboidal ground plan the working areas or the grip areas of the pliers.
• the separate engagement part 9 is further in the embodiment, as is apparent from FIGS. 10 and 11, provided on the underside with a plastic insert 11.
• a plastic insert 11 may be polyamide or PTFE with respect to the plastic.
• an insert metal part such as a brass part, may be provided. It is essential on the one hand a sliding bearing capability of the insert, on the other hand - if necessary, only - to allow sufficient strength to a bracing attachment of the overlap part.
• the pliers according to the first embodiment but which may also be provided in the other embodiments, by means of a spring 13 which is concretely designed as a leg spring is biased in its open state shown in FIG.
• a recess 14 is provided in the pliers limb 2, see FIG. 8, on the working area side of the embodiment 7, into which the spring 13 is inserted so as to be rotatable about a pin 15, which is realized as a screw in the exemplary embodiment.
• a short leg 16 of the spring 13 is supported on the forceps limb 2, while, in the assembled state and at a position closer than shown in Fig. 3, the other leg 17 is supported on the rib 8 of the forceps leg 3.
• a transverse groove 18 is formed in the rib 8, in which the leg 17 of the spring 13 rests in the mounted state.
• the pliers legs 2, 3 are in the trade only rotatable to each other, not about longitudinally adjustable, supported.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Life Sciences & Earth Sciences (AREA)
• Forests & Forestry (AREA)
• Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
• Scissors And Nippers (AREA)
• Multiple-Way Valves (AREA)
• Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
• Manipulator (AREA)
• Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=36645625

Family Applications (1)

Country Status (8)

Families Citing this family (20)

Family Cites Families (21)

• 2005
  • 2005-04-09 DE DE102005016356A patent/DE102005016356A1/de not_active Withdrawn
• 2006
  • 2006-04-07 ES ES06743261T patent/ES2345398T3/es active Active
  • 2006-04-07 AT AT06743261T patent/ATE472391T1/de active
  • 2006-04-07 DE DE502006007329T patent/DE502006007329D1/de active Active
  • 2006-04-07 CN CN2006800186729A patent/CN101184583B/zh not_active Expired - Fee Related
  • 2006-04-07 WO PCT/EP2006/061429 patent/WO2006108804A1/fr active Application Filing
  • 2006-04-07 RU RU2007141493/02A patent/RU2398669C2/ru not_active IP Right Cessation
  • 2006-04-07 US US11/918,115 patent/US7845255B2/en not_active Expired - Fee Related
  • 2006-04-07 EP EP06743261A patent/EP1879721B1/fr not_active Not-in-force

Non-Patent Citations (1)

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