CN102783372A - Two-stage and two-lever hyperbolic labor-saving ramulus mori clippers - Google Patents
Two-stage and two-lever hyperbolic labor-saving ramulus mori clippers Download PDFInfo
- Publication number
- CN102783372A CN102783372A CN2012102712158A CN201210271215A CN102783372A CN 102783372 A CN102783372 A CN 102783372A CN 2012102712158 A CN2012102712158 A CN 2012102712158A CN 201210271215 A CN201210271215 A CN 201210271215A CN 102783372 A CN102783372 A CN 102783372A
- Authority
- CN
- China
- Prior art keywords
- anvil
- pivot
- shearing
- cutter
- cutter head
- 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.)
- Granted
Links
Images
Landscapes
- Scissors And Nippers (AREA)
Abstract
A pair of two-stage and two-lever hyperbolic labor-saving ramulus mori clippers comprises an anvil blade and a shear knife, wherein the shear knife comprises a shearing handle and a shear knife head, the shearing handle is pivotally connected with the shear knife head through a first pivot, the anvil blade is pivotally connected with the shear knife head through a second pivot, the shearing handle forms a first gear part at one end adjacent to the first pivot, the anvil blade form a second gear part adjacent to the second pivot, and the first gear part and the second gear part are meshed with each other. Force exerted on the shearing handle increases gradually through the first pivot and the second pivot, so that a larger shearing force is provided for the shear knife head, and coarse branches can be clipped by using a smaller force.
Description
Technical field
The present invention relates to a kind of scissors of pollard, belong to the cutting implement field.
Background technology
Pruner is used for for example ramulus mori of pollard, and the section of its shearing is smooth, thus cut-off part heal easily, so pruner is widely used in gardens and agriculture field.Usually, thick branch is sawed-off with saw, and the withe bar is cut off with pruner.Current because the labour is in short supply, the employing cutter that has is cut.Though cut the branch rapid speed with cutter, can cause the branch skin breakage that stays, section is uneven, so cut-off part is difficult to healing; Not only speed is slow with sawing, and section is also rough, so the also difficult healing of thick branch section; And the pruner of prior art is difficult to cut and cuts down thick branch because of effort.
Summary of the invention
The purpose of this invention is to provide a kind of pruner, solve and use pruner to cut the problem of cutting down thick branch effort in the prior art.
To achieve these goals, the invention provides following technical scheme:
A kind of pruner; Comprise anvil cutter and shear knife, wherein shear knife comprises the shearing handle and shears cutter head, shears handle and relative to each other is connected pivotly through first pivot with the shearing cutter head; The anvil cutter then relative to each other is connected through second pivot with the shearing cutter head pivotly; Shear handle and be formed with first gear parts at an end of contiguous first pivot, the anvil cutter is formed with second gear parts of contiguous second pivot, and first gear parts and second gear parts are meshing with each other.
Preferably, the length of wherein shearing handle is more than 10 times of shear knife head length degree.
Preferably, said shearing cutter head has shearing point, and the distance between first pivot and second pivot is greater than the distance between the shearing point of second pivot and shearing cutter head.
Preferably, said anvil cutter is divided into the anvil cutter head part of straight basically anvil shank portion and hook solid by second pivot.
Preferably, the anvil cutter head of the hook solid of anvil cutter part approximately forms the angle about 100 degree.
Preferably, the anvil cutter head of said anvil cutter part is in the inboard of anvil shank portion extended line.
Preferably, wherein the anvil shank portion of anvil cutter also is equipped with dismountable sleeve pipe, and sleeve pipe has and adds broad side surface to adapt to butt people's waist.
Preferably, also comprise the lifting rope that links to each other with the anvil shank portion of anvil cutter.
Preferably, wherein the side of whole pruner is limited on two planes, and the angle on said two planes is about 170 degree.
There is following technique effect at least in the embodiment of the invention:
1) shearing handle relative to each other is connected through first pivot with the shearing cutter head pivotly; The anvil cutter then relative to each other is connected through second pivot with the shearing cutter head pivotly; Shear handle and be formed with first gear parts at an end of contiguous first pivot; The anvil cutter is formed with second gear parts of contiguous second pivot, and first gear parts and second gear parts are meshing with each other.Put on the power of shearing handle and increase gradually, thereby bigger shearing force is provided, can enough less power cut off thick branch for shearing cutter head through first pivot and second pivot.
2) the anvil cutter head part of hook solid helps preventing that branch from sliding, thereby the anvil cutter head part that branch is stuck in hook solid is sheared it.
3) the anvil cutter head of hook solid part is in the inboard of anvil shank portion extended line; Be that the anvil shank portion curves inwardly; Can reduce the anvil shank portion under the anvil cutter situation identical and shear open distance between the handle, be convenient to hold or be worn between waist when lifting rope is set and operate with the shear knife opening angle.
4) length of shearing handle is more than 10 times of shear knife head length degree, thereby more laborsaving.
5) side of whole pruner is limited on two planes, and the angle on two planes is that one side has reduced the angle of bending over and facing upward body about 170 degree; Make things convenient for the workman to operate, it is circular can making section on the other hand, rather than the angle that tiltedly is cut into; Reduce area of fracture, accelerate healing time.
6) the anvil shank portion is arranged with dismountable sleeve pipe, and sleeve pipe has and adds broad side surface adapting to butt people's waist, the anvil shank portion pain that extruding causes to waist in the time of can reducing to shear like this.Lifting rope is carried on the arm piggyback, thereby can free hand to buttress the branch of cutting off, practiced thrift the time of picking up again again after cutting off, saved the labour.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention;
Fig. 2 is the shear knife structural representation of the embodiment of the invention;
Fig. 3 is the anvil knife structure sketch map of the embodiment of the invention;
Fig. 4 is first gear parts and the second gear parts mesh schematic representation of the embodiment of the invention;
Fig. 5 is that the anvil cutter head part and the anvil shank portion position of the embodiment of the invention concerns sketch map;
Fig. 6 is that the lifting rope and the anvil shank portion position of the embodiment of the invention concerns sketch map;
Fig. 7 is the sketch map of the higher branch of pruning of the embodiment of the invention;
Fig. 8 is the sketch map of the low branch of pruning of the embodiment of the invention;
Fig. 9 is the labor-saving structure sketch map of two pivots of the embodiment of the invention;
Figure 10 is the labor-saving structure sketch map of the growth arm of force of the embodiment of the invention.
Label is following among the figure:
1-anvil cutter, 101-second gear parts, 102-anvil shank portion, 103-anvil cutter head part;
The 2-shear knife, 201-shears handle, and 202-shears cutter head, 203-first gear parts;
3-first pivot;
4-second pivot;
The 5-sleeve pipe;
The 6-lifting rope;
o
1-the first fulcrum;
o
2-the second fulcrum;
A-resistance point;
B-anvil cutter power point;
C-first order lever power point;
D-second level lever power point.
Identical label is indicated similar or corresponding feature or function in institute's drawings attached.
Understand the present invention for the ease of clearer, special the calculating variable of using in the embodiment enumerated as follows:
o
1The a-resistance arm;
o
1B-anvil cutter power arm;
o
1C-shear knife power arm;
o
2C-second level lever resistance arm;
o
2D-second level lever moving arm;
f
1-resistance;
f
2-anvil cutter power;
f
3-shear knife power;
f
4-shearing force.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention is clearer, will combine accompanying drawing that specific embodiment is described in detail below.Should be noted that the description of hereinafter only relates to technical scheme of the present invention and the technology directly related with this technical scheme.Other basic known technology for relevant with the present invention omits among this paper.
As shown in Figure 1, a kind of pruner comprises anvil cutter 1 and shear knife 2.
As shown in Figure 2, shear knife 2 comprises to be sheared handle 201 and shears cutter head 202, shears handle 201 and relative to each other is connected pivotly through first pivot 3 with shearing cutter head 202.
As shown in Figure 1, anvil cutter 1 relative to each other is connected through second pivot 4 with shearing cutter head 202 pivotly.
As shown in Figure 2, shear handle 201 and be formed with first gear parts 203 at an end of contiguous first pivot 3.
As shown in Figure 3, anvil cutter 1 is formed with second gear parts 101 of contiguous second pivot 4.
As shown in Figure 4, first gear parts 203 and second gear parts 101 are meshing with each other.
As a kind of preferred version, the length of shearing handle 201 is to shear more than 10 times of cutter head 202 length.Preferred as further; Shear cutter head 202 and have shearing point; Distance between first pivot 3 and second pivot 4 is greater than second pivot 4 and shear the distance between the shearing point of cutter head 202, and said shearing point is the protruding point of shearing on the shear blade of cutter head 202.
As a kind of preferred version, said anvil cutter 1 is divided into the anvil cutter head part 103 of straight basically anvil shank portion 102 and hook solid by second pivot 4.
Preferred as further, the anvil cutter head part 103 of the hook solid of anvil cutter 1 approximately forms the angles about 100 degree, in the present embodiment, be 20 scopes spent up and down about said.
Preferred as further, the anvil cutter head part 103 of said anvil cutter 1 is in the inboard of anvil shank portion 102 extended lines, and promptly deflection is sheared the direction of cutter head 202.
Preferred as further, wherein the anvil shank portion 102 of anvil cutter 1 also is equipped with dismountable sleeve pipe 3, and sleeve pipe 3 has and adds broad side surface to adapt to butt people's waist.Preferred as further also comprises the lifting rope 4 that links to each other with the anvil shank portion 102 of anvil cutter 1.
As a kind of preferred version, wherein the side of whole pruner is limited on two planes, and the angle on said two planes is about 170 degree, in the present embodiment, about be 5 scopes spent up and down.
According to above-mentioned each technical scheme, principle of the present invention and effect division are following:
1. anti-outer sliding anvil cutter head part
Usually; In shear history, shear cutter head 202 convexities, anvil cutter head part 103 caves in into (be no more than 5 degree up and down) about 130 degree circular-arc, yet pruner slides easily when shearing; Make branch away from second pivot 4 (being equivalent to resistance arm increases) on the one hand, increase shearing force; Branch is prone to skid off anvil cutter head part 103 on the other hand.The present invention reduces anvil cutter head part 103 arc angles for this reason; Most advanced and sophisticated slightly inwardly curved; It is the described anvil cutter 1 of technique scheme is divided into straight basically anvil shank portion 102 and hook solid by second pivot 4 anvil cutter head part 103; At this, anvil cutter head part 103 is by the circular-arc hook solid that changes into, and hook solid comprises circular arc and the slightly inflexed tip that angle reduces.And the anvil cutter head part 103 that limits hook solid approximately forms the angle about 100 degree.Thus, anvil cutter head part 103 covers of hook solid vise branch during shearing, and branch can not deviate from, thereby has overcome the problem of outer cunning, and more laborsaving.
2. curve inwardly to shorten and open the anvil shank portion of distance
Though shear the length of handle 201 is to shear more than 10 times of cutter head 202 length; Can be more laborsaving; But because anvil shank portion 103 is longer thereupon, anvil cutter head part 103 arc angles reduce, and are most advanced and sophisticated slightly inwardly curved; Shear handle 201 when causing shearing and open apart from excessive, be not easy to operation with anvil shank portion 103.To this; The present invention is straight basically by directly changing into anvil shank portion 103, can know in the inboard of anvil shank portion 102 extended lines that according to the anvil cutter head part 103 of anvil cutter 1 straight basically anvil shank portion 103 slightly curves inwardly; As shown in Figure 3, sweep is positioned near second pivot 4.This kind design is sheared handle 201 and anvil shank portion 103 spacings and can be shortened, thereby make easy to operate when the opening angle of shearing handle 201 and anvil shank portion 103 is identical.
3. increase the labor-saving structure of the arm of force
In the prior art, the length of shearing handle 201 is the 2-3 doubly (in average 2.5 times) that shears cutter head 202 length, and then shear knife power is the 2/1-3/1 of shear knife resistance, cut to cut down tiny branch workman and operate all day and can also bear, thick branch cut cut down just very painstaking.For reducing working strength of workers, the present invention will shear handle 201 and increase, and the anvil shank portion 102 that then matches with it also increases.
Shown in figure 10, be example with the anvil cutter: shear the resistance point a of branch, fulcrum is the first fulcrum o
1, grip is anvil cutter power point b, resistance arm is o
1A, anvil cutter power arm is o
1B, resistance arm o
1A length is 40mm, and anvil cutter power arm is o
1B length is 540mm.If shearing the resistance of branch is f
1, anvil cutter power is f
2, according to lever principle, f
1: f
2=540: 40=13.5/1.With prior art shear knife power be the shear knife resistance 2/1-3/1 doubly, average 2.5/1 relatively, more laborsaving 5.4 times (13.5/2.5=5.4).
4. the labor-saving structure of two pivots
For making shearing more laborsaving, shear knife 2 adopts two pivots to form the double lever structure.
As shown in Figure 9, first order lever is with the first fulcrum o
1Be fulcrum, power point is first order lever power point c, and resistance arm is o
1A, shear knife power arm are o
1C, resistance arm o
1A length is 40mm, and the shear knife power arm is o
1C length is 68mm, and establishing the resistance of shearing branch is f
1, shear knife power is f
3, according to lever principle, f
1: f
3=68: 40=1.7/1.
Second level lever is the second fulcrum o with the local interface point of first gear parts 203 and second gear parts 101
2Be fulcrum, shearing force f
4Be power, second level lever resistance is and f
3The power of opposite sign but equal magnitude, second level lever power point d, second level lever resistance arm is o
2C length is 40mm, and second level lever moving arm is o
2D length is 500mm, according to lever principle, and f
3: f
4=o
2D:o
2C=500:40=12.5/1.
For double lever structure, f
3Be f
412.5 times because f
1Be f
31.7 times, f then
1Be f
421.25 times (1.7 * 12.5), i.e. the shearing force f of shear knife 2
4Be 1/21.25 of shearing resistance, so all only need less power just can easily cut off when shearing the thick branch of 30-40mm.
Transverse curvature be suitable for the height dried mulberry tree cut the double-pole that cuts down
Because the height of branch differs greatly, low is liftoff less than 150mm, more than the high liftoff 1200mm, differs 8 times.Cut when cutting down for low branch and often need bend over even reach 90 °, operation is extremely inconvenient, and the people is had a pain in the back; Cutting (lengthening shear handle 201) with long shoot can reduce the people and bend over; But this moment, haircut and branch were not vertical direction, and fracture and ground are not parallel, tiltedly are cut into an angle; Increased area of fracture; Be unfavorable for that callus covers with the xylem of fracture, meet rainwater and be prone to penetrate into limb, be prone to make xylem rotten if things go on like this.
For this reason; The present invention changes scissors cutter head 202, anvil cutter head part 103 plane of forming and the plane of shearing handle 201, anvil shank portion 102 compositions into cross one another two planes by a plane; Angle between two planes is about 170 °, and is as shown in Figure 7 when cutting the eminence branch, as shown in Figure 8 when cutting the lower branch; With pruner turn-over (overturning 180 °), the needs of perhaps only cutting the eminence branch according to various places or only cutting the eminence branch carry out bending.
6. reduce and collect the lifting rope of cutting the branch operation
Usually long shoot is cut and all needs bimanualness, and the branch of cutting so often is scattered everywhere, also need spend manual work to go to receive to pick up to collect again.
To this, anvil shank portion 102 also is equipped with dismountable sleeve pipe 5, and sleeve pipe 5 has and adds broad side surface to adapt to butt people's waist; Be sleeve pipe 5 to add broad side surface and anvil shank portion 102 wide vertical, anvil shank portion 102 hangs and is worn between waist, adding between broad side surface and waist of sleeve pipe 5 contacts; Contact-making surface is bigger; Join a leather packing again, pad is between waist, and waist can bear the pressure when cutting thick branch fully.Carry out shear action this moment, do not need with holding anvil shank portion 102, holds and pinch branch thereby can vacate left hand, puts together after cutting several branches, so just can reduce collection and cut the branch recruitment.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (9)
1. a pruner comprises anvil cutter and shear knife, and wherein shear knife comprises the shearing handle and shears cutter head, it is characterized in that:
Shearing handle relative to each other is connected through first pivot with the shearing cutter head pivotly; The anvil cutter then relative to each other is connected through second pivot with the shearing cutter head pivotly; Shear handle and be formed with first gear parts at an end of contiguous first pivot; The anvil cutter is formed with second gear parts of contiguous second pivot, and first gear parts and second gear parts are meshing with each other.
2. pruner according to claim 1 is characterized in that:
The length of wherein shearing handle is more than 10 times of shear knife head length degree.
3. pruner according to claim 2 is characterized in that:
Said shearing cutter head has shearing point, and the distance between first pivot and second pivot is greater than the distance between the shearing point of second pivot and shearing cutter head.
4. pruner according to claim 1 is characterized in that:
Said anvil cutter is divided into the anvil cutter head part of straight basically anvil shank portion and hook solid by second pivot.
5. pruner according to claim 4 is characterized in that:
The anvil cutter head part of the hook solid of anvil cutter approximately forms the angle about 100 degree.
6. pruner according to claim 4 is characterized in that:
The anvil cutter head part of said anvil cutter is in the inboard of anvil shank portion extended line.
7. pruner according to claim 4 is characterized in that:
Wherein the anvil shank portion of anvil cutter also is equipped with dismountable sleeve pipe, and sleeve pipe has and adds broad side surface to adapt to butt people's waist.
8. pruner according to claim 7 is characterized in that:
Also comprise the lifting rope that links to each other with the anvil shank portion of anvil cutter.
9. pruner according to claim 1 is characterized in that:
Wherein, the side of whole pruner is limited on two planes, and the angle on said two planes is about 170 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210271215.8A CN102783372B (en) | 2012-07-31 | 2012-07-31 | Two-stage and two-lever hyperbolic labor-saving ramulus mori clippers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210271215.8A CN102783372B (en) | 2012-07-31 | 2012-07-31 | Two-stage and two-lever hyperbolic labor-saving ramulus mori clippers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102783372A true CN102783372A (en) | 2012-11-21 |
| CN102783372B CN102783372B (en) | 2014-12-24 |
Family
ID=47149138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210271215.8A Expired - Fee Related CN102783372B (en) | 2012-07-31 | 2012-07-31 | Two-stage and two-lever hyperbolic labor-saving ramulus mori clippers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102783372B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4023559A1 (en) * | 1990-07-25 | 1992-01-30 | Gardena Kress & Kastner Gmbh | Garden secateurs or branch-pruner - has gearing-down element between actuating handles and shears |
| GB2344783A (en) * | 1998-12-16 | 2000-06-21 | Lin Yu Tang | Gardening shears |
| US6345446B1 (en) * | 2000-05-16 | 2002-02-12 | Shoei-Shin Huang | On gardening shears |
| CN1672489A (en) * | 2004-02-27 | 2005-09-28 | 菲斯卡斯品牌芬兰公司 | Pruning shears or corresponding cutters |
| CN201238499Y (en) * | 2008-05-23 | 2009-05-20 | 上海沃施园艺用品制造有限公司 | Toothed wheel type scissor |
| CN201742754U (en) * | 2010-05-10 | 2011-02-16 | 江苏科技大学 | Cutting mulberry shoot scissors |
| CN202043477U (en) * | 2011-03-17 | 2011-11-23 | 成都花博卉园艺有限公司 | Novel pruning scissors |
| CN202680046U (en) * | 2012-07-31 | 2013-01-23 | 四川省农业科学院蚕业研究所 | Pruning shear |
-
2012
- 2012-07-31 CN CN201210271215.8A patent/CN102783372B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4023559A1 (en) * | 1990-07-25 | 1992-01-30 | Gardena Kress & Kastner Gmbh | Garden secateurs or branch-pruner - has gearing-down element between actuating handles and shears |
| GB2344783A (en) * | 1998-12-16 | 2000-06-21 | Lin Yu Tang | Gardening shears |
| US6345446B1 (en) * | 2000-05-16 | 2002-02-12 | Shoei-Shin Huang | On gardening shears |
| CN1672489A (en) * | 2004-02-27 | 2005-09-28 | 菲斯卡斯品牌芬兰公司 | Pruning shears or corresponding cutters |
| CN201238499Y (en) * | 2008-05-23 | 2009-05-20 | 上海沃施园艺用品制造有限公司 | Toothed wheel type scissor |
| CN201742754U (en) * | 2010-05-10 | 2011-02-16 | 江苏科技大学 | Cutting mulberry shoot scissors |
| CN202043477U (en) * | 2011-03-17 | 2011-11-23 | 成都花博卉园艺有限公司 | Novel pruning scissors |
| CN202680046U (en) * | 2012-07-31 | 2013-01-23 | 四川省农业科学院蚕业研究所 | Pruning shear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102783372B (en) | 2014-12-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201797783U (en) | Graded concave edge type skidproof pruning shears | |
| CN202680046U (en) | Pruning shear | |
| CN205357253U (en) | Multi -functional gardens scissors | |
| CN208863204U (en) | A kind of gardens pruner for tree | |
| CN201192007Y (en) | Tree trimming saw | |
| CN102783372B (en) | Two-stage and two-lever hyperbolic labor-saving ramulus mori clippers | |
| CN201171291Y (en) | Gardening scissors | |
| CN201928696U (en) | Branch trimming shovel for gardens | |
| CN203251688U (en) | Long-rod-type tree-branch-pruning scissors | |
| CN202931838U (en) | Multifunctional garden shears | |
| CN2621408Y (en) | Portable secateur for high branch | |
| CN204157328U (en) | A kind of Multifunctional secateurs | |
| CN201374933Y (en) | Antiskid multifunctional gardening shear | |
| CN203467279U (en) | Lopping shear | |
| CN202444841U (en) | Pruning shears applied to high branches | |
| CN202340481U (en) | Fruit tree scissors | |
| CN206547402U (en) | A kind of modified averruncator | |
| CN204653089U (en) | A kind of tree pruner of garden | |
| CN205320663U (en) | Integrative device of grafting -tool / cut | |
| CN207284317U (en) | A kind of scissors apparatus of GREEB HEDGE MACHINE | |
| CN206005283U (en) | A kind of ornamental trees and shrubs shrub and hedge trimmer | |
| CN213095020U (en) | Gardening scissors | |
| CN212413942U (en) | Fruit branch scissors | |
| CN107896677A (en) | One planting fruit-trees scissors | |
| CN208317536U (en) | A kind of garden shearer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20150731 |
|
| EXPY | Termination of patent right or utility model |