EP0227034A2 - Pince - Google Patents

Pince Download PDF

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Publication number
EP0227034A2
EP0227034A2 EP86117599A EP86117599A EP0227034A2 EP 0227034 A2 EP0227034 A2 EP 0227034A2 EP 86117599 A EP86117599 A EP 86117599A EP 86117599 A EP86117599 A EP 86117599A EP 0227034 A2 EP0227034 A2 EP 0227034A2
Authority
EP
European Patent Office
Prior art keywords
leg
handle
jaw
pliers
jaws
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.)
Ceased
Application number
EP86117599A
Other languages
German (de)
English (en)
Other versions
EP0227034A3 (fr
Inventor
Johannes Solf
Peter Kern
Gerhard Bayer
Jürgen Reichel
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.)
SWG Schraubenwerk Gaisbach GmbH
Original Assignee
SWG Schraubenwerk Gaisbach GmbH
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
Application filed by SWG Schraubenwerk Gaisbach GmbH filed Critical SWG Schraubenwerk Gaisbach GmbH
Publication of EP0227034A2 publication Critical patent/EP0227034A2/fr
Publication of EP0227034A3 publication Critical patent/EP0227034A3/fr
Ceased 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
    • B25B7/02—Jaws
    • B25B7/04—Jaws adjustable
    • 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 water pump or universal pliers, with a first handle leg, which has a first jaw at its working end, and a second handle leg connected to the first handle leg via a pivot axis, to which a second jaw is assigned, the distance between the jaws is mutually changeable by moving one jaw against the other.
  • Water pump pliers of this type which are also called universal pliers, have a first handle leg, which is intended to rest on the inside of the palm. This changes into a first jaw in the area of its work end. Articulated on this first handle leg is a second handle leg, which forms the second jaw at its working end and around the four fingers of the hand in the area of its opposite end is caught.
  • the mouth formed by the two jaws faces away from the longitudinal axis of the pliers by an angle of approximately 60 °.
  • the finger grip leg can be displaced in relation to the other grip leg in a direction perpendicular to a line of symmetry between the two inner jaw sides.
  • the spread angle position of the pliers legs prevents a direct comparison between the set jaw width and workpiece thickness during the setting process.
  • the setting result can only be checked when the legs are in the closed position. The entire process must be repeated for a correction.
  • a particularly serious disadvantage is that the relative displacement of the pivot point with respect to one of the shanks
  • the gripping zones of the two legs also shift relative to one another in the longitudinal direction. This leads to a change in the contact surface geometry between the handles and thus to different gripping conditions with the different mouth width settings.
  • the gripping hand is put under greater strain as a good ergonomic design of the gripping zone requires a fixed relative position of the legs to one another.
  • the distance between the legs also changes.
  • the hand must close differently if it wants to apply the same closing forces at different jaw widths. Especially with thick, and therefore usually heavy workpieces, the leg distance is very small due to the large jaw width. This leads to a strong reduction in the deployable closing forces of the hand.
  • a pair of pliers is already known (US Pat. No. 2,321,430) which has two jaws, the inner sides of which run parallel to one another, and in which one jaw is guided so as to be displaceable on the other jaw.
  • a line of symmetry between the inner sides of the two jaws runs parallel to the longitudinal axis of the pliers, so that the problem of the longitudinal displacement of the two legs relative to one another cannot occur there.
  • the known pliers are concerned with making the clamping force independent of the width of the jaw position. A pivoting of the two legs towards each other leads to a displacement movement of the two jaws relative to each other and not to a pivoting of the jaws. Therefore, the problem does not arise here that the result cannot be checked directly on the workpiece when the jaw width is adjusted.
  • the invention has for its object to provide a water pump pliers or universal pliers that offers a very simple to use and easy to perform adjustment option with a simple structure and in which the hand side of the pliers can be optimally designed with regard to ergonomic requirements.
  • the handle legs are immovably mounted on one another and a jaw is designed as a component separate from the handle legs.
  • This jaw is slidable and fixable on a handle leg.
  • the displaceable jaw is mounted on the finger grip leg of the pliers. It can advantageously be provided that the displaceable jaws have a leg running approximately at right angles to it with an elongated hole which is penetrated by the pivot axis. This means that the kinematics of handling the water pump pliers do not change in their work area. With the known water pump pliers, the upper jaw is pivoted about the pivot axis of the pliers.
  • the displaceable jaws is guided on the handle-side leg section of the handle leg.
  • the guide in this section forms, especially in connection with the elongated hole penetrated by the pivot axis, a holder at two points arranged at a distance from one another, so that despite the formation of the jaws as a separate component, the pliers are given excellent strength.
  • the displaceable jaws has an adjusting device for fixing it in several positions on the handle leg. It can be both discrete positions, which may have detents.
  • the adjustment device has a spring button which may be spring-loaded and which engages a locking element in one of several positions.
  • This push button can advantageously be arranged in an area that can be reached by the thumb of the gripping hand. Then the pliers can be adjusted with one hand without having to let go.
  • the displaceable jaw is acted upon by a spring in the direction of increasing the jaw width. Then, during use, the pliers are brought up to the workpiece to be held, the sliding jaws are pushed in until the tool touches and the adjusting device is released.
  • the displaceable jaws form a leg section designed as a double leg Pushing through at least one handle leg. This can ensure that better guidance is given without the possibility of tilting.
  • the displaceable jaws can be frictionally fixed, for example on lateral guides of the handle leg.
  • the displaceable jaws can be frictionally fixed, for example on lateral guides of the handle leg.
  • the grip leg has a double-T-shaped guideway, along which the movable jaw jaws, which have a double leg, can be displaced and against which it rests in a frictionally engaged manner.
  • the pliers including the swivel axis, consist of only four parts, with an infinitely variable adjustment option at the same time.
  • the adjusting device has a screw spindle.
  • the water pump pliers shown in Fig. 1 contains a first handle leg 11, which is approximately straight from its lower in Fig. 1, the handle end, and is then bent by about 60 ° from its longitudinal direction. In this bent area, the handle leg 11 forms a first jaw 12. In the region of the bend 13 between the straight part of the handle leg 11 and the jaw 12, the handle leg 11 is penetrated by a pivot axis 14, which is formed by a pin.
  • the second handle leg 15 is articulated on the pivot axis 14, which is the finger handle leg in the exemplary embodiment shown. While the first handle leg 11 with respect to the pivot axis 14 as a two-armed lever, the finger grip leg 15 extends essentially only on one side of the pivot axis 14.
  • the second jaw 19 Associated with the finger grip leg 15 is the second jaw 19, which has a jaw section 20 and a leg 21 which extends approximately at right angles to this.
  • the shape of the jaw section 20 corresponds approximately to that of the first jaw 12, but is linearly symmetrical to a dividing line between the two jaws.
  • the shape and dimension of the leg 21 of the displaceable jaw 19 corresponds approximately to the guide section 16 of the finger grip leg 15.
  • the leg 21 has an elongated hole 22, the width of which corresponds approximately to the diameter of the leg axis 14. In the area of the end of the leg 21 there is a thickening 23 in which a rotary knob 24 is mounted.
  • the jaws 19 produced as a separate component is connected to the water pump pliers in such a way that the pivot axis 14 extends through the elongated hole 22 and receives a widened head outside the leg 21.
  • the leg 21 contains an extension 25 of the knob 24, see FIG. 2, which engages in the opening 18.
  • the jaws 19 are connected in a rotationally fixed manner about the pivot axis 14 to the finger grip leg 15, but, depending on the position of the projection 25, can be shifted as far as this by the length of the elongated hole 22 and the opening 18 is made possible.
  • the cross section of the projection 25 is chosen so that it corresponds in one direction approximately to the diameter of the circles which form the opening 18. In a direction perpendicular thereto, the dimension of the projection 25 is smaller than the distance between two opposing tips 29 of the opening 18. If the projection 25 is now rotated with the help of the rotary knob 24 so that its larger dimension runs transversely to the longitudinal direction of the opening 18, then the jaws 19 is locked. By turning through 90 °, the projection 25 moves into a position in which the jaws 19 can be moved to adjust the jaw width.
  • Fig. 2 shows the individual parts of the water pump pliers shown in Fig. 1 in a narrow side view. It can be seen that the jaws have a greater width than the rest of the grip leg 11, as does the jaw 20 relative to its leg 21.
  • the finger grip leg 15 is placed next to the first grip leg 11 in such a way that the pivot opening 29 present in it matches arrives with a pivot opening 30 of the handle leg 11.
  • a pin forming the pivot axis 14 is then inserted through the aligned openings 30, 29.
  • the displaceable jaws 19 are then attached from the outside in such a way that the pin forming the pivot axis 14 passes through the elongated hole 22. Then he receives a thickened head on the outside of the jaw 19.
  • the projection 25 projecting on the inside of the jaw 19 comes to lie in the opening 18.
  • the guide section 16 of the finger grip leg 15 contains a guide track 31 which has the shape of a double T in cross section.
  • the displaceable jaw 39 again has a leg 32 with an elongated hole 22.
  • the leg 32 is, however, designed as a double leg, the two sections of the double leg 32 running parallel to one another and having a uniform inner spacing.
  • the movable jaw 39 is pushed onto the finger grip leg 15 in such a way that the two sections of the double leg 32 enclose the web 33 of the guideway 31 between them.
  • the width a of the double leg 32 corresponds to the width of the guideway 31, so that the longitudinal edges 34 rest on the inner sides 35 of the webs 36 of the double-T profile of the guideway 31 on both sides.
  • FIG. 6 shows a single view of a further guideway 16 in a further embodiment.
  • the guideway 16 of a finger grip leg 15 is designed as a solid bar 40 which has an opening 41 in the form of a rectangle.
  • a breakthrough is in the opening 41
  • the longitudinal direction of the opening 41 and the screw 42 extending in the longitudinal direction of the guide section 16 are arranged rotatably.
  • the head 43 of the screw which is provided with longitudinal corrugation, is accessible from outside the guide section 16. With the help of the head 43, the screw 42 can be rotated about its own longitudinal axis, so that an element which is held in the rectangular opening and secured against rotation is displaced in the longitudinal direction of the screw.
  • the screw extends through a thread-free bore through the lower end 44 of the guide section 16. This makes it turnable.
  • an extension 46 is attached to the inside 45 of the movable jaw 49, the width of which, measured perpendicular to the paper plane, corresponds to the width of the opening 41.
  • the extension 46 contains a longitudinally threaded bore 47.
  • a push button 48 is used in the embodiment according to FIG. 8.
  • the push button 48 is arranged in a recess 50 of the movable jaw 19, which also has a spring 51.
  • a shaft 52 is attached to the inside of the push button 48 and has a widened head 53 on the inside 45 of the jaws 19. In the position shown, which is forced by the spring 51, the widened head 53 lies in the opening 18 in the guide section 16 of the finger grip leg 15, from which it can be pressed out by pressing the push button 48 on the rear side, so that it then passes through the narrower shaft 52 a shift is made possible.
  • a push button can also be used, which automatically turns when pressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Saccharide Compounds (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Reciprocating Pumps (AREA)
  • Massaging Devices (AREA)
EP86117599A 1985-12-20 1986-12-17 Pince Ceased EP0227034A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3545410 1985-12-20
DE19853545410 DE3545410A1 (de) 1985-12-20 1985-12-20 Wasserpumpenzange

Publications (2)

Publication Number Publication Date
EP0227034A2 true EP0227034A2 (fr) 1987-07-01
EP0227034A3 EP0227034A3 (fr) 1987-12-09

Family

ID=6289152

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86117599A Ceased EP0227034A3 (fr) 1985-12-20 1986-12-17 Pince

Country Status (7)

Country Link
US (1) US4748876A (fr)
EP (1) EP0227034A3 (fr)
JP (1) JPS62176773A (fr)
DE (1) DE3545410A1 (fr)
DK (1) DK619686A (fr)
FI (1) FI865228A7 (fr)
NO (1) NO865084L (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995128A (en) * 1990-01-22 1991-02-26 Montgomery Robert D Electrician's combination tool
USD416457S (en) 1998-08-12 1999-11-16 Cooper Industries, Inc. Box joint pliers
US7086312B1 (en) 2001-12-28 2006-08-08 Kenneth Guy Tortolani Parallel jaw locking toggle wrench/pliers with economic/ergonomic handles
USRE45680E1 (en) * 2000-07-19 2015-09-29 Stanley Works (Europe) Gmbh Transversely retained multiple slip-joint pliers
FR2811925B1 (fr) * 2000-07-19 2003-01-24 Facom Pince multiprise entrepassee
DE20013912U1 (de) 2000-08-08 2000-12-07 Eduard Wille Gmbh & Co, 42349 Wuppertal Zange mit veränderbarer Maulweite, insbesondere Wasserpumpenzange
USD494439S1 (en) 2002-11-12 2004-08-17 Irwin Industrial Tool Company Wrench handle
US20080166194A1 (en) * 2007-01-09 2008-07-10 Durfee Laverne R Drill bit
US20100003094A1 (en) * 2007-01-09 2010-01-07 Irwin Industrial Tool Company Drill bit
US7681477B2 (en) * 2008-01-31 2010-03-23 The Stanley Works Adjustable pliers
US8070397B2 (en) * 2008-02-19 2011-12-06 Irwin Industrial Tool Company Self feed bit
US20100307640A1 (en) * 2009-06-03 2010-12-09 Durfee La Verne R Cutting edge and cutting tool
US8522443B2 (en) 2010-09-03 2013-09-03 Irwin Industrial Tool Company Cutting edge for a cutting tool

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1136618A (en) * 1914-05-04 1915-04-20 Arthur Samuel Francis Robinson Pliers and like gripping-tool.
US2321430A (en) * 1940-03-09 1943-06-08 Smith Norman Pliers
DE1126329B (de) * 1958-03-29 1962-03-22 Ver Beckersche Werkzeugfab Rohrzange
US3664214A (en) * 1970-03-18 1972-05-23 Reuben J Feldman Combination pliers and wrench tool
US3824882A (en) * 1972-05-04 1974-07-23 C Burthardt Adjustable screw-lock pliers
SE400921B (sv) * 1976-08-11 1978-04-17 Bahco Verktyg Ab Glidledstang
DE3108276A1 (de) * 1981-03-05 1982-09-23 Bessey & Sohn Gmbh & Co, 7000 Stuttgart Greif- oder klemmwerkzeug
DE3224399A1 (de) * 1982-06-30 1984-01-12 Bessey & Sohn Gmbh & Co, 7000 Stuttgart Zange, insbesondere rohrzange

Also Published As

Publication number Publication date
DK619686A (da) 1987-06-21
JPS62176773A (ja) 1987-08-03
EP0227034A3 (fr) 1987-12-09
DE3545410A1 (de) 1987-06-25
DE3545410C2 (fr) 1987-12-03
FI865228A0 (fi) 1986-12-19
FI865228L (fi) 1987-06-21
FI865228A7 (fi) 1987-06-21
NO865084L (no) 1987-06-22
NO865084D0 (no) 1986-12-16
US4748876A (en) 1988-06-07
DK619686D0 (da) 1986-12-19

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Effective date: 19890210

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Owner name: SWG SCHRAUBENWERK GAISBACH GMBH & CO. KG

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Effective date: 19900628

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SOLF, JOHANNES

Inventor name: BAYER, GERHARD

Inventor name: KERN, PETER

Inventor name: REICHEL, JUERGEN