CN101790437A - pliers - Google Patents
pliers Download PDFInfo
- Publication number
- CN101790437A CN101790437A CN200880101021A CN200880101021A CN101790437A CN 101790437 A CN101790437 A CN 101790437A CN 200880101021 A CN200880101021 A CN 200880101021A CN 200880101021 A CN200880101021 A CN 200880101021A CN 101790437 A CN101790437 A CN 101790437A
- Authority
- CN
- China
- Prior art keywords
- movable joint
- pliers
- grip element
- contact
- making surface
- 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.)
- Pending
Links
- 238000010008 shearing Methods 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005755 formation reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007799 cork Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
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
- B25B7/08—Joints with fixed fulcrum
-
- 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
- B25B7/22—Pliers provided with auxiliary tool elements, e.g. cutting edges, nail extractors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Scissors And Nippers (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
Abstract
The invention relates to a pair of pliers having two grip elements (3, 5) and two functional ends (9, 11) associated with the grip elements (3, 5), said grip elements being rotatable about an axis of rotation by means of a joint (7) and being connected to one another; the functional ends each have an edge (13, 15) and thereby form a cutting section (17); the grip elements (3, 5) are connected to the functional ends (9, 11) of the grip elements by means of a joint disk (23, 25); the joint disks (23, 25) are each located in a plane perpendicular to the axis of rotation of the joint (7). The invention is characterized in that the contact surface (27) of the joint disk (23, 25) is not located in the center of the joint (7) in the direction of the joint axis of rotation.
Description
Technical field
The present invention relates to a kind of pliers with two grip element as described in the preamble as claimed in claim 1.
Background technology
Propose a kind of pliers below, this pliers has two and can rotate and interconnective grip element by a movable joint.These two grip element are set at a side of this movable joint, and these two grip element extend to the function end that is positioned at opposite side, and those function ends have a sword respectively and form one thus shears section.Fact proved, will apply very large inefficacious when shearing article usually with such pliers.Especially disadvantageously, the sword of this function end can tilt, and causes low shear efficiency thus.
Summary of the invention
Therefore task of the present invention is to provide a kind of pliers that uses less power just can reach better shear effect.
The present invention provides a kind of pliers of feature according to claim 1 that has in order to solve this task.This pliers comprises two grip element, and these two grip element are rotated and interconnected by a movable joint, and wherein the turning cylinder of these two grip element passes this movable joint.This pliers is provided with two function ends that belong to this grip element in addition, and these two function ends are set at opposite side relative with this grip element, this movable joint, and these two function ends have a sword respectively and form a shearing section thus.Be provided with the movable joint dish in this movable joint zone, these two movable joint dishes are parallel to each other, and lay respectively in the plane perpendicular to this movable joint turning cylinder.In a side of these two movable joint dishes one grip element is installed respectively, and belongs to the function end of this grip element in opposite side installation one.The characteristics of this pliers are the thickness difference of these two movable joint dishes.This makes that the contact-making surface of these two movable joint dishes is not end face and the place, the centre position between the bottom surface at the movable joint of this pliers.Because this contact-making surface is offset to some extent with respect to the median surface of this movable joint, thereby will for example object such as wire or analog is introduced the shearing section of this pliers the time, can avoid the movable joint dish run-off the straight of this pliers.In addition among the present invention, when shearing object, the power on this grip element of acting on is basically less than the required power of traditional pliers.
In a better embodiment of pliers of the present invention, this shearing section becomes angle α with contact-making surface between these two movable joint dishes.Realized by this way when shearing object, only needed on this function end, to apply littler moment and get final product, thereby made the magnitude of inclination of this function end and this movable joint dish littler, and further reduced required shearing force.
The characteristics of another better embodiment are that this contact-making surface and this shearing section intersect at a zone towards movable joint.Angle α by adjusting and this contact-making surface can guarantee that heeling moment further reduces.
The design of pliers of the present invention can be applied in cutting pliers, combination long roundnosed pliers or flat-nose pliers, and on the cutting knife of side, and can both reach the advantage of expection in these two kinds of pliers types.
Description of drawings
Next by means of accompanying drawing the present invention is described further, wherein:
Fig. 1 is the anterior schematic diagram at the pliers that is designed to cutting pliers shown in the bottom view;
Fig. 2 is the side view of cutting pliers among Fig. 1;
Fig. 3 is the front perspective view of the cutting pliers shown in Fig. 1 and Fig. 2;
Fig. 4 is the anterior schematic diagram at the pliers that is designed to the side cutting knife shown in the bottom view;
Fig. 5 is the side view of side cutting knife shown in Figure 4, and
Fig. 6 is the front perspective view of Fig. 4 and side cutting knife shown in Figure 5.
The specific embodiment
As shown in Figure 1, this pliers 1 is designed to cutting pliers.This pliers 1 has two detachable grip element 3 and 5, and these two grip element are rotated and interconnected by a movable joint 7.The turning cylinder of these two grip element is perpendicular to the perspective plane of Fig. 1.This first grip element 3 has a function end 9, and this second grip element 5 has a function end 11.In addition, with grip element 3 and 5, place the both sides of this movable joint 7 with affiliated function end 9 and 11.As shown in Figure 1, grip element 3 and 5 is closed up to greatest extent, thereby make function end 9 and 11 closed and be in contact with one another.
Each function end all has a sword, and wherein, article one sword 13 belongs to this function end 9, and second sword 15 belongs to this function end 11, thereby has formed the shearing section 17 that directly is connected on this movable joint 7.Side that deviates from this movable joint 7 in this shearing section 17 is provided with one first gripping section 19, and this gripping section is made of two contact-making surface directions from these two function ends zone that is spill of looking.Preferably this concave regions has tooth, to improve chucking power and to avoid the rotation of held object.
Side that deviates from this movable joint 7 at this gripping section 19 is provided with one second gripping section 21, and herein, this second gripping section 21 is by constituting for two the relative zones plane, that be positioned on these two function ends substantially.This second gripping section 21 is used for the clamping planar object.
To sum up, this pliers 1 is designed to traditional cutting pliers, these cutting pliers relate to this shearing section 17 and these two gripping sections 19 and 21.
It can also be seen that from Fig. 1 movable joint 7 zones between first grip element 3 and the affiliated first function end 9 are provided with a movable joint dish 23, on this movable joint dish, a side is equipped with this grip element 3, and opposite side is equipped with this function end 9.Very feasible is, with this grip element 3, this movable joint dish 23 and this function end 9 global formations.The outer peripheral edges of this movable joint dish 23 are arranged to cylinder, promptly rounded in vertical view.
Fig. 2 is the side view of pliers shown in Figure 1.Same part has identical Reference numeral, thereby can be with reference to the explanation of figure 1.
In Fig. 2, show this second function end 11 and this first grip element 3 once more.Obviously show this movable joint 7 herein.Show the movable joint dish 23 that is arranged between this grip element 3 and the affiliated function end 9 in the zone of this movable joint 7, this function end 9 has been covered by this function end 11 herein.
Can also see a movable joint dish 25 that is arranged between this second grip element 5 and the affiliated function end 11 in the zone of this movable joint 7, this movable joint dish 25 is covered by this movable joint dish 23 in Fig. 1.In this movable joint 7, this movable joint dish 23 contacts in the zone of this contact-making surface 27 with 25.Fig. 2 is clearly shown that this contact-making surface is not at the end face 29 of this movable joint 7 and place, the centre position between the bottom surface 31.In other words, this movable joint dish 23 is thinner than this movable joint dish 25.This contact-making surface 27 is near the bottom surface 31 of this movable joint 7, and therefore close this sheared section 17.
Fig. 3 is the front perspective view of the pliers 1 that obtains from oblique forward observation, and wherein the bottom surface of this movable joint 7 is towards the observer.Herein, this pliers 1 is in open configuration.Can clearly be seen that thus this movable joint dish 23 is thinner than this movable joint dish 25.Thereby compare the bottom surface 31 of these contact-making surface 27 more close movable joints with the end face 29 of this movable joint.
In the cutting pliers of Fig. 1～Fig. 3, this shearing section 17 is positioned at same plane with the bottom surface 31 of this movable joint 7.By the inclined-plane of sword 13 and 15, effective shearing rib of sword may be positioned at a plane, and the 31 residing planes, bottom surface of this plane and movable joint 7 are at a distance of a very little distance.These two planes are parallel to each other.
Show the another kind of embodiment of this pliers 1 at Fig. 4～Fig. 6.Pliers herein is not as Fig. 1～cutting pliers shown in Figure 3, but the side cutting knife of structure type known per se.Therefore only it is done simple the introduction herein.Same and part that function is identical has identical Reference numeral, thereby can be with reference to the explanation of figure 1～Fig. 3.
This pliers 1 ' has one first grip element 3, and this first grip element is rotated by a movable joint 7 with one second grip element 5 and is connected.Herein, the turning cylinder of this movable joint 7 is also vertical with the perspective plane of Fig. 4.Side at the movable joint dorsad 7 of first grip element 7 is provided with first function element 9.Correspondingly, one second function end 11 belongs to this second grip element 5.
This function end 9 and 11 has sword 13 and 15, shears section 17 thereby also formed one herein.Two gripping sections in the cutting pliers that are arranged on Fig. 1～Fig. 3 in the pliers 1 ' that is designed to the side cutting knife, have been cancelled.
As can be seen, the movable joint dish 23 that belongs to this first grip element 3 and this first function end 9 is still thin than the movable joint dish 25 that belongs to this second grip element 5 and this second function end 9 from the front view of pliers 1 ' shown in Figure 5.Therefore, also the contact-making surface 27 of two movable joint dishes 23 and 25 is not arranged on the end face 29 and the place, the centre position between the bottom surface 31 of this movable joint 7 herein.Can clearly be seen that from Fig. 5 it is angled with this contact-making surface 27 that this shears section 17, this contact-making surface is parallel with the end face 29 or the bottom surface 31 of this movable joint.
This contact-making surface 27 is relevant with the thickness of movable joint dish 23 with the intersection point 33 that should shear between the section 17: this movable joint dish 23 is thin more, and this contact-making surface 27 is near more from the bottom surface 31 of this movable joint 7, and this intersection point 33 is also near more from this movable joint 7.
The front perspective view of the pliers 1 ' among Fig. 4～Fig. 5 is clearly shown that also the contact-making surface 27 between this movable joint dish 23 and 25 is nearer from the end face 29 of this movable joint 7 from the bottom surface of this movable joint 7 31 ratios.It can also be seen that the share zone 17 of pliers 1 ' that is designed to the side cutting knife is angled with the 31 residing planes, bottom surface of this contact-making surface 27 and this movable joint 7.Correspondingly, this shears the end face 29 residing planes inclinations of section 17 with respect to this movable joint 7.This inclination angle is represented with α in Fig. 5.
From Fig. 1～Fig. 6, can clearly be seen that, two grip element 3 and 5 of pliers 1 and 1 ' are interconnected on the movable joint 7, and are installed on movable joint dish 23 and 25.Be provided with the function end 9 and 11 of grip element 3 and 5 at the opposite side of this movable joint 7.In addition, preferably this grip element 3, affiliated movable joint dish 23 and function end 9 global formations that belong to this grip element 3, and this grip element 5, affiliated movable joint dish 25 and function end 11 global formations that belong to this grip element 5.Herein importantly, contact-making surface 27 between this movable joint dish 23 and 25 is not at the end face 29 of movable joint 7 and place, the centre position between the bottom surface 31, but be offset to some extent with respect to the centre position: preferably as Fig. 2 and 3 and Fig. 5 and 6 shown in, this contact-making surface is partial to the bottom surface 31 of this movable joint 7, just is partial to the shearing section 17 of this pliers 1 and 1 '.Special structure type by this movable joint 7 can realize: when shearing object, shearing section 17 places this pliers 1 and 1 ' only form a very little heeling moment, and two swords 13 of this function end 9 and 11 and 15 all keep mutual accurate alignment and have best shear effects.Therefore object can be not crushed, but be neatly cut, thereby can reduce required shearing force widely.Frictional force between the movable joint dish 23 and 25 in the zone of this contact-making surface 27 has also reduced, thereby can use pliers 1 and 1 ' to shear object like a cork, and has reduced to affact the power on this grip element 3 and 5 greatly.
In the pliers 1 ' that is designed to the side cutting knife of Fig. 4～shown in Figure 6, this is sheared section 17 and tilts with respect to this contact-making surface 27, thereby the thickness of inclined angle alpha that can be by this shearing section 17 and this two movable joint dishes 23 and 25 determines the position of this contact-making surface 27, promptly this contact-making surface 27 and this intersection point of shearing between the section 17 33 are tried one's best near these movable joints 7, are preferably located in 1/3rd places near this movable joint 7 of this shearing section 17.The heeling moment that will produce in the time of will shearing object thus is reduced to minimum, and act on this contact-making surface 27 the zone in movable joint dish 23 and 25 between frictional force also be lowered to minimum.
To sum up, trickle variation has only taken place in the foundation structure of this pliers 1 and 1 ' movable joint 7: have the grip element 3 of function end 9 and 11 and at 5 o'clock in manufacturing, make corresponding movable joint dish 23 have different thickness with 25, wherein this movable joint dish 23 is thinner than this movable joint dish 25, thereby this contact-making surface 27 between this movable joint dish 23 and 25 is near the bottom surface 31 of this movable joint 7.In the manufacture process of this pliers 1 and 1 ', the modification of this movable joint 7 is negligible, thereby in fact manufacturing cost can not change, and these two kinds of pliers Class1 and 1 ' manufacturing are still simple as before the modification not.
Can clearly be seen that in addition, also this gripper design can be become so-called Power Tong, in this Power Tong, the turning cylinder of movable joint 7 is especially near sword 13 and 15 or shear section 17.
Claims (6)
1. pliers, it has two grip element (3,5) and two function ends (9,11) that belong to described grip element (3,5), and wherein, described grip element is rotated and is interconnected around a turning cylinder by a movable joint (7); Described function end has a sword (13,15) respectively and forms one thus shears section (17); Described grip element (3,5) links to each other with the described function end (9,11) that belongs to grip element by a movable joint dish (23,25); Described movable joint dish (23,25) lays respectively in the plane vertical with the turning cylinder of described movable joint (7), it is characterized in that the contact-making surface (27) of described movable joint dish (23,25) is not to be positioned at the centre position place of described movable joint (7) on this movable joint rotating shaft direction.
2. pliers as claimed in claim 1 is characterized in that, described shearing section (17) and described contact-making surface (27) shape be (α) in an angle.
3. pliers as claimed in claim 1 or 2 is characterized in that, described contact-making surface and described shearing section (17) intersect at an intersection point (33), preferably intersect at one in the zone of described movable joint (7).
4. pliers as claimed in claim 3 is characterized in that, described intersection point (33) is positioned at described 1/3rd places that shear the close described movable joint (7) of section (17).
5. as each described pliers in the claim 1 to 4, it is characterized in that, described pliers (1) is designed to cutting pliers, combination long roundnosed pliers or flat-nose pliers.
6. as each described pliers in the claim 1 to 4, it is characterized in that, described pliers (1 ') is designed to the side cutting knife.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007037382.3 | 2007-08-08 | ||
| DE102007037382.3A DE102007037382B4 (en) | 2007-08-08 | 2007-08-08 | tongs |
| PCT/EP2008/005927 WO2009018917A1 (en) | 2007-08-08 | 2008-07-18 | Pliers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101790437A true CN101790437A (en) | 2010-07-28 |
Family
ID=39832414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880101021A Pending CN101790437A (en) | 2007-08-08 | 2008-07-18 | pliers |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2176033A1 (en) |
| CN (1) | CN101790437A (en) |
| DE (1) | DE102007037382B4 (en) |
| TW (1) | TW200924914A (en) |
| WO (1) | WO2009018917A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI665064B (en) * | 2018-01-23 | 2019-07-11 | 吳明杰 | Pliers |
| US10960519B2 (en) | 2018-08-02 | 2021-03-30 | Ming Chieh Wu | Pliers |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201302394A (en) | 2011-07-12 | 2013-01-16 | Ming-Jie Wu | Universal pliers |
| US9855642B2 (en) | 2011-07-12 | 2018-01-02 | Ming Chieh Wu | Effort-saving locking pliers |
| US10207393B2 (en) | 2011-07-12 | 2019-02-19 | Ming Chieh Wu | Locking pliers |
| US11478903B2 (en) * | 2017-07-10 | 2022-10-25 | Nigel Buchanan | Pliers |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1116093A (en) * | 1911-07-15 | 1914-11-03 | Archibald Mckaig Sr | Pliers. |
| US3404457A (en) * | 1966-07-26 | 1968-10-08 | Diamond Tool And Horseshoe Co | Hand tool |
| DE8404922U1 (en) * | 1984-02-18 | 1984-05-30 | Belzer-Dowidat Gmbh Werkzeug-Union, 5600 Wuppertal | PLIERS |
| US20070006389A1 (en) * | 2005-07-08 | 2007-01-11 | Cotter Timothy J | Electrician's tool having multiple capabilities |
| DE102006024296A1 (en) * | 2006-05-24 | 2007-11-29 | Knipex-Werk C. Gustav Putsch Kg | tongs |
-
2007
- 2007-08-08 DE DE102007037382.3A patent/DE102007037382B4/en active Active
-
2008
- 2008-07-18 EP EP08774028A patent/EP2176033A1/en not_active Withdrawn
- 2008-07-18 WO PCT/EP2008/005927 patent/WO2009018917A1/en active Application Filing
- 2008-07-18 CN CN200880101021A patent/CN101790437A/en active Pending
- 2008-07-30 TW TW97128817A patent/TW200924914A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI665064B (en) * | 2018-01-23 | 2019-07-11 | 吳明杰 | Pliers |
| US10960519B2 (en) | 2018-08-02 | 2021-03-30 | Ming Chieh Wu | Pliers |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2176033A1 (en) | 2010-04-21 |
| WO2009018917A1 (en) | 2009-02-12 |
| DE102007037382B4 (en) | 2015-08-06 |
| TW200924914A (en) | 2009-06-16 |
| DE102007037382A1 (en) | 2009-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100728 |