CN100472904C - Wire stripper which can be automatically adapted to different conductor cross sections - Google Patents
Wire stripper which can be automatically adapted to different conductor cross sections Download PDFInfo
- Publication number
- CN100472904C CN100472904C CNB200580001373XA CN200580001373A CN100472904C CN 100472904 C CN100472904 C CN 100472904C CN B200580001373X A CNB200580001373X A CN B200580001373XA CN 200580001373 A CN200580001373 A CN 200580001373A CN 100472904 C CN100472904 C CN 100472904C
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- China
- Prior art keywords
- jaw
- feather key
- shearing
- wire stripping
- stripping pliers
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- 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.)
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- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
Abstract
The invention relates to a wire stripper which can be automatically adapted to different conductor cross sections and different insulation layer thickness comprising two pairs of jaws with circumjacently supporting, wherein the outer jaw being used as a clamping jaw (33) and shifting by a first clamp arm (1) having a common circumgyrating point (5) with a jaw part (30), the inner jaw being used as a shearing jaw (41), a shearing cutter (37) with a cutting insulation layer and a tension bar (43) fixed on the shearing jaw (41) and moving lengthways causing stripping movement, the tension bar being coupled to a second clamp arm (7) through a lever. According to this invention, at least one of sliding bonds (13, 23) is supported on the first clamp arm (1) or in the gap matching the shape of a clamp part (3) and the sliding bonds (13, 23), wherein, a first sliding bond ssurface (15, 25) turning tpward to the shearing jaw (41) is a plane, yet a second sliding bond ssurface (17, 27) cling to the gap is formed such way as, distance between the sliding bond ssurfaces diminishing from sliding bonds (13, 23) to at least one end of the two sliding bonds. By this structure, when opening the wire stripper, sliding bonds (13, 23) move lengthways as well as being position matched vertical to longitudinal direction, to generate adjusment of the shearing jaw (41) and the shearing cutter (37) which is fixed on the shearing jaw (41).
Description
Technical field
The present invention relates to the wire stripping pliers of a kind of automatically adapted to different conductor cross sections and thickness of insulating layer, but it has the jaw of two pairs of pivoting supports, wherein Wai Bu a pair of jaw constitutes as clamping claw and can move by first tong arm and the jaw parts with shared swivel point, and another constitutes as shearing jaw internal jaw, shear knife and having with incision insulating barrier is fixed on to shear on the jaw and vertically move in caliper and causes the pull bar of peeling off motion, and pull bar is connected with second tong arm by lever.
Background technology
Be known as the removal cable insulation and use various pliers and similar hand-operated tools.Compare with traditional electrician's knife, the wire stripping pliers of adjustable or secured adjusted provide higher fail safe for operator and cable material.Connect for obtaining high-effective conductive, must guarantee that electric wire (single core or multicore) is not damaged when removing insulating barrier.In this regard, important at first is that foreskin on the cable end piece also has the insulating barrier of single lead can totally and according to length remove in the contact zone.The major advantage of tradition automatic vise with stripping is can be at one operating procedure internal cutting off insulating barrier and utilize the handle that clamps pliers subsequently and take off from lead.But must or have a plurality of difform edges of a knife by the manual adjustment pliers with cooperating of different insulative layer and cable thickness finishes in the past.Because there are the danger that damages lead in this regard all the time in operation or adjustment error.
DE 44 20 006 A1 have for example introduced a kind of pliers that wire end is removed insulating barrier that is used for, and have pair of outer and keep jaw and a pair of internal shear jaw.Finish with the limited resistance that on compacted cable sheathing, produces by the maintenance jaw that cooperates of cable cross-section.Under the very little situation of cable size, compress the restriction that is subjected to additional backstop.Can not cooperate with different insulation thickness in this regard.Therefore the danger that exists is, if insulating material was more then sheared shallow or if insulating material softer then sheared dark.Inhomogeneous or the damage lead of cable of foreskin can appear going in its consequence.
EP 0 645 861 A2 have introduced a kind of wire stripping pliers, but have the jaw of two pairs of pivoting supports, and wherein Wai Bu a pair of jaw constitutes as the shearing jaw with shear knife in the incision insulating barrier internal jaw as clamping claw formation and another.Can cooperate with different conductive wire cross-section and thickness of insulating layer by an eccentric wheel.The operator can change the position that jaw and affiliated shear knife are sheared in the bottom by eccentric reversing.
DE 44 20 050 C1 disclose a kind of wire stripping pliers, and wherein, at least one is sheared jaw and has a branch of thin slice that is arranged side by side and can has shear blade with the vertical vertical moving of jaw, and shear blade is pressed in the wire insulation when pliers is closed.Thin slice is by having the clamp arm supporting of V-notch.Narrow down or broaden by this breach and cooperate with different conductive wire cross-section.Remove insulating barrier for different conductive wire cross-section and therefore need provide the clamp arm with different breach, these clamp arms must be by in the operator's selection and the wire stripping pliers of packing into.
Summary of the invention
Therefore purpose of the present invention is wire stripping pliers are carried out following improvement, make the penetraction depth of shear knife can be in a simple manner with different conductive wire cross-section, thickness of insulating layer and insulating material from movingly.
This purpose is by being achieved according to wire stripping pliers of the present invention, wherein, in the breach that at least one feather key is bearing in first tong arm or the jaw parts with the shape of feather key matches, wherein, turning to the first feather key face of shearing jaw is the plane, and the second feather key face that is close in the breach constitutes like this, make two distances between the feather key face from the central area of feather key at least to two feather key ends one of diminish.When opening wire stripping pliers, feather key moving in the vertical makes feather key cooperate perpendicular to lengthwise position simultaneously, thereby the automatic shearing degree of depth that produces shear knife is adjusted.
Shear jaw with the penetraction depth in the coordinated insulation layer by using this feather key to adjust in a simple manner.According to being in first tong arm, in the jaw parts or in two parts, having corresponding feather key, can or adjust one or also can adjust two and shear jaws.By being bearing in the corresponding moulding of the second feather key face in first tong arm or the jaw parts breach, also can finish aspect the manufacturer for the basic cooperation of the required penetraction depth of different insulative material.
Utilize according to wire stripping pliers of the present invention guarantee for the first time to shear jaw the shear knife penetraction depth from movingly, this cooperation can make this pliers be used for about 0.5mm
2-10mm
2Cable cross-section in the scope.
According to a kind of execution mode that has advantage especially of wire stripping pliers, second feather key that first feather key is bearing in the breach on first tong arm and same way as constitutes is bearing in the breach on the jaw parts.In this regard, circular arc proves useful especially for the second feather key face of feather key.Thus from the central area of feather key, the distance between two feather key faces narrows down to two feather key ends.In this embodiment, shear jaw for two and can carry out degree of depth adjustment, guarantee the evenly clean shearing in both sides thus all the time.But in the execution mode that changes, second sliding surface also can have other and for example be in distribution with the plane inclination of the first feather key face, thereby forms the only feather key of a side wedge shape.
In another embodiment, according to purpose, the mask of shearing the close feather key of jaw has first and second lug bosses.First lug boss is used to shear jaw and produces the point-like contact on the first feather key face.Only there are this contact rather than whole contact by shearing between jaw and the feather key face, can will shear the minimise friction of jaw on the feather key face and therefore guarantee that feather key can not move suddenly.
Have the execution mode of advantage according to another, clamping claw has the clamping tooth of a projection separately, preferably leans on the end of shearing jaw at clamping claw.The clamping tooth of projection and shear knife have the shearing inclined-plane that the single-surface mirror picture constitutes in this regard.When pliers was closed, the clamping tooth of projection was cut in the cable slightly, reaches the additional location of the insulating barrier that is retained on the cable thus.
In another execution mode according to purpose, the shape by the second feather key face makes the first feather key face reach slightly obliquity each other when feather key vertically moves.This point opens the shearing jaw when direct motion guides during the shearing jaw is peeled off slightly.Therefore can compensate and to remove inhomogeneous on the protected cable and prevent to damage heart yearn.
What have advantage in addition is that shear knife releasably is fixed on to be sheared on the jaw.Preferably, shear knife is screwed in and shears jaw near on the end face of clamping claw.They can be easy to change or substitute by other shear knives that cooperate with purposes under abrasion condition thus.If must handle, also it is contemplated that the use molding blade for example as this harder insulating material of polytetrafluoroethylene.
Preferred clamping claw can unclamp and be fixed in the material feeding jaw.Under abrasion condition, therefore also can provide for simple replacement of clamping claw here.In addition, clamping claw can vertically be adjusted, and can cooperate compression distance thus.
Description of drawings
Other advantages, details and further constitute from following by the explanation of accompanying drawing to a preferred implementation.Wherein:
Fig. 1 illustrates jaw and opens total figure according to wire stripping pliers of the present invention;
Fig. 2 illustrates the total figure of jaw closure according to wire stripping pliers of the present invention;
Fig. 3 illustrates the schematic diagram that feather key vertically moves;
Fig. 4 illustrates the detail drawing of jaw;
Fig. 5 illustrates the clamping claw detail drawing with material feeding jaw;
Fig. 6 illustrates the feather key detail drawing with position insurance.
Embodiment
Fig. 1 is always to illustrate the open foundation of jaw wire stripping pliers of the present invention.Wire stripping pliers comprise first tong arm 1 and the jaw parts 3 with shared swivel point 5.Second tong arm 7 that is connected with first tong arm 1 by gyroaxis 8 utilizes roller 11 to act on jaw parts 3 like this by lever 9, makes jaw same closed in the tong arm closing course that is caused by the user.
Be in being first feather key 13 together with the first feather key face 15 that turns to the jaw opening and being close to the second feather key face 17 in the breach in first tong arm, 1 breach.First feather key 13 is connected with jaw parts 3 by first connecting rod 19.First pin 21 is used for first connecting rod 19 is fixed in the jaw parts 3.
Turn to the first feather key face 15,25 of jaw opening to be the plane.The second feather key face 17,27 in the breach of being close to is preferred to be constituted like this, and the distance between the first and second feather key faces 15,17 or 25,27 is evenly narrowed down to two feather key ends from the central area of feather key 13,23.Circular arc proves has advantage especially.Be used to support the form fit of the breach of feather key 13,23 and feather key 13,23 and have arc-shaped sliding surface equally, it is corresponding with the second feather key face.
But wire stripping pliers are furnished with the jaw of two pairs of pivoting supports in addition.First pair of outside jaw constitutes as clamping claw 33 and can utilize first tong arm 1 and 3 motions of jaw parts.Inner another constitutes as shearing jaw 41 jaw, has can unclamp to be fixed on to shear the shear knife 37 in the incision insulation on the jaw.Shear and be fixed on the vertically upward mobile pull bar 43 of peeling off motion that causes of caliper on the jaw 41, pull bar is connected with second tong arm 7 by lever 9.
In addition, being between first tong arm 1 and second tong arm 7 is to be used for the cutting pliers 45 that transversely cutting will be removed insulating layer cable.When tong arm is closed,, wherein, can shear like a cork by the leverage that produces on the gyroaxis 8 also with the shear blade closure of cutting pliers.
Go the insulating barrier process to carry out as described below.The cable (not shown) is penetrated between the clamping claw 33, make the desired region that to remove insulating barrier be in the back of shear knife 37.At the clamping clip period of the day from 11 p.m. to 1 a.m, movably tong arm 7 is to 1 motion of first tong arm then.Meanwhile, be connected with second tong arm 7 and the other end is hinged on lever 9 on the jaw parts 3 by roller 11 and also makes jaw parts 3 around swivel point 5 revolutions by an end, closed and two clamping claws 33 of jaw cooperate with cable sheathing securely thus.Meanwhile also will shear jaw 41 and send into clipped position, as following also to introduce in detail.
The clamping tooth 47 (referring to Fig. 4) that clamping claw 33 preferably has a projection separately.The clamping tooth 47 of this projection and shear knife 37 have the shearing inclined-plane of single-surface mirror picture.The clamping tooth 47 of projection is in the incision cable sheathing and the additional location of the insulating barrier that therefore is used for keeping on the cable when clamping claw 33 closures.The resistance that clamping claw 33 produces on clamped cable sheathing prevents the closing motion that continues.
Shear the adjustment of the degree of depth and finish thus, promptly when continuation clamping pliers carried out relevant therewith deflection with jaw parts 3 around swivel point 5, first feather key 13 was easy to draw outside vice jaw part by the pull bar 43 that is connected with jaw parts 3.Meanwhile, first feather key 13 moves as the amount that difference produces with distance A between feather key front end in the breach shown in Fig. 1 and 2 and the backstop leading edge and B.Move by this, position, angle closed and first feather key 13 simultaneously changes (referring to Fig. 3) from position E to position D with amount of feeding C to shear jaw 41.
Synchronous therewith, by the deflection that utilizes second feather key 23 that connecting rod 29 fixedlys connected with first tong arm 1 to produce jaw parts 3, thereby second feather key 23 carries out relative motion with the direction identical with first feather key 13 with respect to jaw parts 3.Therefore also shear jaw 41 here perpendicular to the feed motion and second position correction of feather key 23 from E to D that vertically move with amount C.By selecting the back of the body arc radius R of feather key 13,23 shown in Figure 3, can optimize amount of feeding C and position correction for different purposes.
In continuing change procedure, insulating barrier is peeled off from lead thus, promptly will shear jaw 37,39 by lever 9 to the motion of extension spring 49 and draw in the direction at pliers center by the pull bar 43 that is connected with lever 9.
Exist during peeling off and shear the point-like contact of jaw 41 on the first feather key face 15,25.This contact realizes near first lug boss 51 on the face of the first feather key face 15,25 by shearing jaw 41.In addition, be in second lug boss 53 that also has on the same cutting nipper actinal surface.This second lug boss 53 is over against the center of the shearing jaw 41 of motion.For this purpose, have slotted hole 55 in the pull bar 43, can be in equably on the clamping claw 33 thereby shear jaw 41 by 49 two of extension springs.
A kind of preferred embodiment in, by the shape of the second feather key face 17,27, when feather key 13,23 vertically moves, cause the first feather key face 15,25 obliquity slightly.When shearing jaw 41 direct motions guiding, therefore during peeling off, make shear jaw 41 and above shear knife 37 minimum degree that spin open.
Fig. 4 illustrates the detail drawing of jaw.The lobed separately clamping tooth 47 of clamping claw 33.Clamping claw can be used as the embolism receiving opening as shown in Figure 5 or constitutes as two parallel plane column.Be on embolism or the plane column is to guarantee in material feeding jaw 59 thickening position 57 separately of clamping.By housing screw 61 clamping claw 33 is vertically adjusted.This adjustment is generally carried out in producer.
As can be seen from Figure 6, for making the insurance of feather key 13,23 positions use safety plug 63.Therefore the additional feather key 13,23 that prevents produces undesirable change in location under any load condition that it is contemplated that.
Reference numeral
1 first tong arm
3 jaw parts
5 swivel point
7 second tong arms
9 levers
11 rollers
13 first feather keys
The first feather key face of 15 first feather keys
The second feather key face of 17 first feather keys
19 first connecting rods
21 first pins
23 second feather keys
The first feather key face of 25 second feather keys
The second feather key face of 27 second feather keys
29 second connecting rods
31 second pins
33 clamping claws
37 shear knives
41 shear jaw
43 pull bars
45 cutting pliers
The clamping tooth of 47 projectioies
49 extension springs
51 first lug bosses
53 second lug bosses
55 slotted holes
57 thickening positions
59 material feeding jaws
61 housing screws
63 safety plugs
Claims (9)
1. the wire stripping pliers of automatically adapted to different conductor cross sections and thickness of insulating layer, but jaw with two pairs of pivoting supports, wherein Wai Bu a pair of jaw constitutes as clamping claw (33) and can move by first tong arm (1) and the jaw parts (3) with shared swivel point (5), and another constitutes as shearing jaw (41) internal jaw, have the shear knife (37) of incision insulating barrier and be fixed on to shear on the jaw (41) and in caliper, vertically move and cause the pull bar (43) of peeling off motion, pull bar is by lever (9) and second tong arm (7) coupling, it is characterized in that, first feather key (13) be bearing in match with the shape of this first feather key (13) in first tong arm (1) breach in and second feather key (23) be bearing in the breach that matches with the shape of this second feather key (23) in the jaw parts (3), wherein, turn to the first feather key face (15 of shearing jaw (41), 25) be the plane, and be close to the second feather key face (17 in the breach, 27) constitute like this, two distances between the feather key face are diminished to one of two feather key ends at least from the central area of first feather key (13) and second feather key (23), and when wire stripping pliers clamp, first feather key (13) and second feather key (23) mobile first feather key (13) and second feather key (23) of making simultaneously in the vertical cooperates perpendicular to vertically carrying out the position, thereby the shearing degree of depth that causes the shear knife (37) of shearing jaw (41) and fixing on it is adjusted.
2. by the described wire stripping pliers of claim 1, wherein, the second feather key face (17,27) of first feather key (13) and second feather key (23) is a circular arc.
3. by the described wire stripping pliers of claim 2, wherein, first feather key (13) is connected with jaw parts (3) by first connecting rod (19) and second feather key (23) is connected with first tong arm (1) by second connecting rod (29), and jaw parts (3) turn round when wire stripping pliers clamp, and relevant therewith mobile first feather key (13) that makes of first connecting rod (19) moves in the vertical, wherein, synchronous therewith, second connecting rod (29) is fixing with second feather key (23), therefore jaw parts (3) also produce second feather key (23) by this relative motion by its deflection when moving around second feather key (23) corresponding cooperation.
4. by one of claim 1-3 described wire stripping pliers, wherein, shearing jaw (41) has on its face near first feather key (13) and second feather key (23) and is used to shear jaw (41) and goes up at the first feather key face (15,25) and produce first lug boss (51) that point-like contacts and over against second lug boss (53) of the center of the shearing jaw (41) that moves.
5. by the described wire stripping pliers of claim 1, wherein, clamping claw (33) has the clamping tooth (47) of a projection separately, and shearing inclined-plane with single-surface mirror picture of the clamping tooth (47) of projection and shear knife (37).
6. by the described wire stripping pliers of claim 1, wherein, the shape of the second feather key face (17,27) causes the slight inclination position of the first feather key face (15,25) at feather key (13,23) when vertically moving, this position opens shear knife (37) during the direct motion guiding during shearing jaw (41) and peeling off slightly.
7. by the described wire stripping pliers of claim 1, wherein, shear knife (37) releasably is fixed on to be sheared on the jaw support (41).
8. by the described wire stripping pliers of claim 1, wherein, clamping claw (33) releasably is fixed in the material feeding jaw (59), and clamping claw (33) is with respect to stepping up face apart from adjustable.
9. the described wire stripping pliers of claim 1 wherein, are provided with cutting pliers (45) between first tong arm (1) and second tong arm (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004000346 | 2004-01-22 | ||
| DE10200400346.2 | 2004-01-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1898843A CN1898843A (en) | 2007-01-17 |
| CN100472904C true CN100472904C (en) | 2009-03-25 |
Family
ID=37610247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200580001373XA Expired - Fee Related CN100472904C (en) | 2004-01-22 | 2005-01-24 | Wire stripper which can be automatically adapted to different conductor cross sections |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN100472904C (en) |
| HK (1) | HK1099607A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242164A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Power cable semiconductive layer stripping device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017128226A1 (en) * | 2017-11-29 | 2019-05-29 | Rennsteig Werkzeuge Gmbh | Abisolierzange |
| DE102017128227A1 (en) * | 2017-11-29 | 2019-05-29 | Rennsteig Werkzeuge Gmbh | Jaws and cutting edges for a wire stripper, as well as wire stripper |
-
2005
- 2005-01-24 CN CNB200580001373XA patent/CN100472904C/en not_active Expired - Fee Related
-
2007
- 2007-06-18 HK HK07106530.7A patent/HK1099607A1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242164A (en) * | 2013-06-20 | 2014-12-24 | 国家电网公司 | Power cable semiconductive layer stripping device |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1099607A1 (en) | 2007-08-17 |
| CN1898843A (en) | 2007-01-17 |
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