DE10037348A1 - Jointing clamp; has jaw fixed to main shell and second jaw linked to main and counter shells, where jaws have straight sides that fit together with aligned semicircular depressions in each jaw - Google Patents

Jointing clamp; has jaw fixed to main shell and second jaw linked to main and counter shells, where jaws have straight sides that fit together with aligned semicircular depressions in each jaw

Info

Publication number
DE10037348A1
DE10037348A1 DE2000137348 DE10037348A DE10037348A1 DE 10037348 A1 DE10037348 A1 DE 10037348A1 DE 2000137348 DE2000137348 DE 2000137348 DE 10037348 A DE10037348 A DE 10037348A DE 10037348 A1 DE10037348 A1 DE 10037348A1
Authority
DE
Germany
Prior art keywords
main
jaw
lever
counter
shell
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
DE2000137348
Other languages
German (de)
Inventor
Thomas Dodt
Dieter Dohmen
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.)
RODO KETTEN KETTENFABRIK GmbH
Original Assignee
RODO KETTEN KETTENFABRIK 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 RODO KETTEN KETTENFABRIK GmbH filed Critical RODO KETTEN KETTENFABRIK GmbH
Priority to DE2000137348 priority Critical patent/DE10037348A1/en
Priority claimed from DE20023418U external-priority patent/DE20023418U1/en
Publication of DE10037348A1 publication Critical patent/DE10037348A1/en
Ceased legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B7/00Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools
    • B25B7/12Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears
    • B25B7/123Pliers; Other hand-held gripping tools with jaws on pivoted limbs; Details applicable generally to pivoted-limb hand tools involving special transmission means between the handles and the jaws, e.g. toggle levers, gears with self-locking toggle levers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/146Clip clamping hand tools

Abstract

The invention relates to pressing tongs for deforming press clamps. The ferrule either functions as a stopper or connects several wires previously pushed through the ferrule. DOLLAR A To create a crimping pliers that are simpler in construction and much cheaper to produce than known crimping pliers, a pair of pliers is proposed that is based on the functional principle of the gripping pliers that are available as inexpensive mass-produced goods.

Description

The invention relates to pressing tongs for deforming pressing terminals. The press clamp either has the function of a Stoppers or connects several previously through the press clamp pushed wires.

From US 2,910,900 is an adjustable multi-lever pliers knows whose cheeks are stretched by a toggle move against each other. The scope of this Tool is to press clamps around electrically conductive Squeeze wires.

In particular, the known pliers consist of a pair of Head levers articulated somewhat off-center by a plate are interconnected. The front sections of the head levers form a flat connection in the closed position the lying jaws, each with a semi-cylindrical ver indentation for receiving the press clamp. If the back Forcing sections of the head levers apart they use the jaws to move against each other and the press press the clamp together.

At the rear sections of the head levers are in Ver Relationship to the head levers much longer operating lever hinged. In the area of the linkages, the two have actuating lever joint sections with a common rotation axis. The Ge connected via the common axis of rotation Steering sections of the actuating lever form together with the Articulations a toggle. Now are the operating levers moved apart, the common axis of rotation of the Joint sections, i.e. the knee of the knee lever in the direction the free ends of the operating levers and the distance between the articulations is reduced, so that the Open the jaws of the pliers. In the opposite direction direction, the knee lever is stretched and the linkages  move between the operating and head levers apart and exert force on the press clamp.

In order to be able to adjust the pressing force of the pliers, the three articulation points of the knee lever, i.e. the articulations between the operating levers and the head levers as well as the common axis adjustable. For this purpose one of the Joint sections a gap between the articulation and the common axis, whose width by means of a Stell screw is changeable. For this, the material of the pliers be sufficiently elastic. The changing gap weakens the material of the operating lever and can due to Notch effect lead to its breakage. The disadvantage is that In addition, the rather complex construction of the well-known press pliers, which has a total of 5 joints and 5 components consists. As a result, the under the brand name "Nico press "pliers sold under the US patent costly Use of the pliers in the DIY sector is therefore hardly an option Consideration.

Furthermore, so-called tensioners are known from the prior art witnesses, such as clamps, vices or grip pliers known. At http: //www.bau markt.de/sidm/heimwerkerlexikon/gripzangen.htm from 2.5.2000 different grip pliers are shown. Depending on the version the jaws are divided into universal, parallel, Ideal, Langbeck, welder, pipe welder and wide mouth grip pliers. All have a large clamping force to Ge to hold objects during processing or to e.g. B. Loosen screws and nuts. The required clamping force for the holding or releasing work can be done by means of a Screw located at the rear end of the main shell of the Pliers, adjust. Grip pliers are mainly used for the processing of metal sheets used for this Brin welding or soldering work in the correct position gen so that you can work with both hands. With a  Grip pliers can e.g. B. two parts, such as with a screw force to be held together. The basic structure the grip pliers are characterized by the main and one Counter shell, with a first jaw firmly attached to the main shell and a second jaw with both the main and the Ge gene bowl is articulated and one at its ends lever articulated in the main and counter shells, the together with the counter shell and the joints of the lever like this how the counter shell forms a knee lever.

Based on the prior art according to US 2,910,900 the invention has for its object to a pressing tongs create the simpler in construction and much cheaper can be produced. The invention is also based on the object basic, on the pliers an adjustment for the press to propose force that does not involve material weakening brings.

The solution to this problem is based on the thought of being to dismantle cheap mass-produced grip pliers in this way delle that they defined a instead of the holding function Press force exerts on a press clamp.

In particular, this task is characterized by the characteristics of the contractor spell 1 solved.

If in the first and the second straight jaw the press pliers at least two semicircular cylindrical recesses different diameters are arranged himself with only a pair of pliers according to the invention, press clamps Squeeze different dimensions together.

To prevent wear on the recesses and / or jaw surfaces and / or to compensate joints of the pressing tongs is advantageous embodiment of the invention at least one of the the joints of the lever between the main and counter shells  variable position. If the joint is in the main shell is changeable and the further end joint of the lever the knee one consist of this lever and the counter shell the toggle is, for example, usually in the main shell of grip pliers set screw ver be used to change the position of the joint.

Deviating from the usual structure of Grip pliers, however, it is also possible to wear out equal to the pressing tongs the lever between the main and counter shell is variable in length and the end joint in the counter shell the knee one from this length change union lever and the counter shell existing toggle lever.

The pressing tongs can also be used as holding tongs if the straight jaws on the front as gripping jaws with a pro filleting, in particular a corrugation are designed.

The pressing tongs according to the invention are described below with reference to FIG Figures explained in more detail. Show it

Fig. 1a shows a crimping pliers according to the invention in a closed position,

FIG. 1b, the pressing tongs c upon actuation of a release lever,

FIG. 1d, the pressing tongs in an open position,

FIGS. 2a-g is a representation of the operation of he inventive crimping pliers.

The pressing tongs according to the invention essentially consist of a main shell 1 and a counter shell 2 , a first jaw 3 being fixedly connected to the main shell 1 and a second jaw 4 being articulated to both the main shell and the counter shell 1 , 2 .

The fixed joints 5 , 6 , 8 , 23 of the pressing tongs are all Lich Lich designed as a hollow cylindrical bolt with a semicircular head, which is inserted through holes in the superimposed components and taken up by a retainer. The firm connection with the counter holder is made by its plastic deformation, as with a rivet connection.

A lever 7 is also articulated in the main and counter shells 1 , 2 , the joint 8 of which is fixed in position in the counter shell 2 , while the opposite end joint 9 in the main shell 1 changes position by a nose which cannot be seen in FIG. 1 is formed in connection with an adjusting screw 12 .

The nose arranged on the end of the lever 7 prevents the lever 7 from sliding out in the direction of the counter shell from the main shell 1, which is bent upwards at least in an adjustment area 14 and is shaped like a horseshoe. The adjustment range 14 is limited by the upwardly closed, rear section 13 of the main shell 1 with an internal thread. The internal thread receives the set screw 12 , the front of which defines the pivot point of the joint 9 .

The joint 8 of the lever 7 forms the knee of a knee lever consisting of the lever 7 and the counter shell 2 . If you move the main and counter shells 1 , 2 of the pressing tongs towards each other, the joint 8 moves in the direction of the connecting line shown in FIG. 1 between the joints 6 and 9 until the toggle lever is extended, as shown in FIG. 1a is. As a result of the extension of the toggle lever, the Ge joint 6 moves clockwise around the joint 5 and the jaws 3 , 4 reach their closed position shown in FIG. 1a. The surfaces 16 , 17 of the jaws 3 , 4, which are straight over the entire length, lie flat on one another in the closed position.

Both in the surface 16 and the surface 17 are each 3 semicircular cylindrical depressions 18 of different diameters. In each case two corresponding recesses 18 are in the upper surfaces 16 , 17 opposite. In the closed position according to FIG. 1a), their longitudinal central axes coincide and form the longitudinal central axis of the thus formed. Circular cylinder.

In the exemplary embodiment, the diameters of the semi-circular cylindrical depressions 18 are, for example, 2.5, 3.2 and 4.1 mm. With these diameters, press clamps with the following dimensions can then be processed:

Finally, the pressing tongs have a release lever 22 which is connected to the counter shell 2 via a joint 23 . The distance of the hinge 23 in the direction of the rear end of the counter-shell 2 by the joint 8 is selected so that a cam 24 during the pivoting of the release lever 21 counter-clockwise from its Fig. Rest position shown 1a is supported on the lever 7 and the counter-shell 2 as a result of the further rotary movement of the release lever 21 moved away from the main shell 2 and thus releases the jaws 3 , 4 (cf. FIG. 1b, c).

The production of a wire loop 25 with the aid of the pressing tongs according to the invention is explained in more detail with reference to FIGS . 2a-2g:

First, with the adjusting screw 12 unscrewed, move the main and counter shells 1 , 2 towards each other until they stop. Then the right-handed screw 12 is turned clockwise until the jaws 3 , 4 lie flat on each other ( Fig. 2a).

Now the crimping pliers are opened by actuating the release lever 15 and the set screw 12 is turned a half turn clockwise further to build the force required for pressing the compression clamps between the jaws 3 , 4 ( FIG. 2b).

Then a ferrule 21 is put over a wire 26 and the free wire end 27 is also passed through the ferrule 21 ( Fig. 2c). To fix the wire loop 25 thus formed, the ferrule 21 between the recesses 18 in the jaws 3 , 4 is brought by the main and Ge counter-shell 1 , 2 are moved towards each other ( Fig. 2d), but first without the toggle lever fully extended is.

Subsequently, the main and counter shells 1 , 2 are pressed together with increased force, overcoming a noticeable resistance, until the toggle lever is fully stretched in accordance with FIG. 1a ( FIG. 2e). As a result of the forces exerted by the jaws 3 , 4 on the press clamp 21 , the latter is plastically deformed and fixes the wire loop 25 .

Finally, the pliers are opened by means of the release lever 22 and the fixed wire loop 25 is removed ( FIGS. 2f, 2g).

LIST OF REFERENCE NUMBERS

1

main dish

2

counter-shell

3

First cheek

4

Second cheek

5

Joint cheek

6

Joint cheek

7

lever

8th

Articulated lever

9

Articulated lever

10

-

11

-

12

screw

13

Rear section main shell

14

adjustment

15

-

16

Second jaw surface

17

First cheek surface

18

Semicircular cylindrical depressions

19

Longitudinal central axis

20

-

21

ferrule

22

release lever

23

joint

24

cam

25

wire loop

26

wire

27

Free wire end

Claims (6)

1. pressing tongs with a main and a counter shell ( 1 , 2 ), a first jaw ( 3 ) fixed to the main shell ( 1 ) and a second jaw ( 4 ) with both the main and the counter shell ( 1 , 2 ) is connected in an articulated manner with a lever ( 7 ) which is articulated at its ends in the main and counter shells ( 1 , 2 ), the jaws ( 3 , 4 ) being straight at least in sections and their surfaces ( 16 , 17 ) in a closed position of the pressing tongs lie flat on one another and in the surface ( 17 ) of the first ( 3 ) and the surface ( 16 ) second straight jaw ( 4 ) in each case at least one semicircular recess ( 18 ) is arranged, with two matching diameters Wells ( 18 ) are opposite and their longitudinal central axes ( 19 ) coincide in the closed position of the pressing tongs.
2. crimping pliers according to claim 1, characterized in that in the surface ( 16 , 17 ) of the first and the second straight cheek ( 3 , 4 ) at least two semicircular cylindrical recesses ( 18 ) of different diameters are arranged.
3. crimping pliers according to claim 1 or 2, characterized in that at least one of the two joints ( 8 , 9 ) of the lever ( 7 ) between the main and counter shells ( 1 , 2 ) is positionally changeable.
4. crimping pliers according to claim 3, characterized in that the joint ( 9 ) in the main shell ( 1 ) is variable in position and the further end joint ( 8 ) of the lever ( 7 ) the knee one of this lever ( 7 ) and the counter shell ( 2 ) existing toggle is.
5. crimping pliers according to claim 1 or 2, characterized in that the lever between the main and counter shell ( 1 , 2 ) is variable in length and the end joint in the counter shell is the knee of an existing knee lever from this lever and the Ge counter shell.
6. crimping pliers according to one of claims 1 to 5, characterized in that the straight jaws ( 3 , 4 ) are designed on the end face as gripping jaws with a profile, in particular corrugation.
DE2000137348 2000-07-31 2000-07-31 Jointing clamp; has jaw fixed to main shell and second jaw linked to main and counter shells, where jaws have straight sides that fit together with aligned semicircular depressions in each jaw Ceased DE10037348A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000137348 DE10037348A1 (en) 2000-07-31 2000-07-31 Jointing clamp; has jaw fixed to main shell and second jaw linked to main and counter shells, where jaws have straight sides that fit together with aligned semicircular depressions in each jaw

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20023418U DE20023418U1 (en) 2000-07-31 2000-07-31 Jointing clamp; has jaw fixed to main shell and second jaw linked to main and counter shells, where jaws have straight sides that fit together with aligned semicircular depressions in each jaw
DE2000137348 DE10037348A1 (en) 2000-07-31 2000-07-31 Jointing clamp; has jaw fixed to main shell and second jaw linked to main and counter shells, where jaws have straight sides that fit together with aligned semicircular depressions in each jaw

Publications (1)

Publication Number Publication Date
DE10037348A1 true DE10037348A1 (en) 2002-02-21

Family

ID=7650881

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2000137348 Ceased DE10037348A1 (en) 2000-07-31 2000-07-31 Jointing clamp; has jaw fixed to main shell and second jaw linked to main and counter shells, where jaws have straight sides that fit together with aligned semicircular depressions in each jaw

Country Status (1)

Country Link
DE (1) DE10037348A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523385A (en) * 1946-02-06 1950-09-26 Lawrence C Mead Lever and cam operating means for releasing locking pliers from locked position
US2910900A (en) * 1958-01-30 1959-11-03 Nat Telephone Supply Co Adjustable multiple lever tool
DE8425875U1 (en) * 1984-09-01 1984-12-13 Georg Fischer Ag, Schaffhausen, Ch, Niederlassung: Georg Fischer Ag, 7700 Singen, De Assembly pliers for pipes
US4889022A (en) * 1988-03-11 1989-12-26 Peviani Thomas P Quick releasable vice-grip pliers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523385A (en) * 1946-02-06 1950-09-26 Lawrence C Mead Lever and cam operating means for releasing locking pliers from locked position
US2910900A (en) * 1958-01-30 1959-11-03 Nat Telephone Supply Co Adjustable multiple lever tool
DE8425875U1 (en) * 1984-09-01 1984-12-13 Georg Fischer Ag, Schaffhausen, Ch, Niederlassung: Georg Fischer Ag, 7700 Singen, De Assembly pliers for pipes
US4889022A (en) * 1988-03-11 1989-12-26 Peviani Thomas P Quick releasable vice-grip pliers

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection