CN111264207A - Pruning shear blade - Google Patents
Pruning shear blade Download PDFInfo
- Publication number
- CN111264207A CN111264207A CN202010244345.7A CN202010244345A CN111264207A CN 111264207 A CN111264207 A CN 111264207A CN 202010244345 A CN202010244345 A CN 202010244345A CN 111264207 A CN111264207 A CN 111264207A
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- Prior art keywords
- blade
- groove
- upper blade
- pruning shear
- pruning
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- Pending
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- 238000013138 pruning Methods 0.000 title claims abstract description 64
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 14
- 239000000956 alloy Substances 0.000 claims abstract description 14
- 229910001105 martensitic stainless steel Inorganic materials 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims description 33
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 35
- 239000010687 lubricating oil Substances 0.000 description 14
- 229910001315 Tool steel Inorganic materials 0.000 description 8
- 230000002035 prolonged effect Effects 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 240000000249 Morus alba Species 0.000 description 2
- 235000008708 Morus alba Nutrition 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 244000227633 Ocotea pretiosa Species 0.000 description 1
- 235000004263 Ocotea pretiosa Nutrition 0.000 description 1
- 240000008866 Ziziphus nummularia Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G3/00—Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
- A01G3/02—Secateurs; Flower or fruit shears
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Forests & Forestry (AREA)
- Environmental Sciences (AREA)
- Scissors And Nippers (AREA)
Abstract
The invention relates to the field of blades, and particularly discloses a pruning shear blade which comprises a blade assembly made of high-alloy martensitic stainless steel, wherein the heat treatment hardness of the blade assembly is HRC 50-60. The scheme can improve the hardness and the toughness of the blade, so that the blade no longer has the risk of generating a rolling edge and collapsing.
Description
Technical Field
The invention belongs to the field of blades, and particularly relates to a pruning shear blade.
Background
A pruning shear blade is a tool for pruning gardens and is mainly applied to pruning fruit branches, mulberry branches and other live branches. The conventional pruning shears are basically as shown in the attached drawings 1 and 2 of the specification and are divided into an upper blade 1 and a lower blade 2, when the pruning shears are used, the upper blade 2 and the lower blade 2 are respectively installed one by one, the upper blade 1 plays a cutting role in the use process, the lower blade 2 plays a supporting role in the use process, and branches are cut off by means of occlusion of the upper blade 2 and the lower blade 2.
The conventional branch pruning is divided into two seasons in one year, namely winter pruning and spring pruning, and the softness and hardness of the branches are greatly different due to different types and regions of the branches, for example, the apple branches and the jujube branches in the north are much harder than the mulberry branches pruned in the south, and in addition, the ice layer is usually formed on the branches due to the temperature in the winter in the north, so that the hardness of the branches is further increased; at present, the pruning shear blade is mostly made of high-carbon tool steel SK5 materials, when the pruning shear blade is adopted for pruning, the hardness of the high-carbon tool steel SK5 materials is about HRC45-50, the hardness of the cutting edge of the blade is lower, when hard branches with ice layers are cut, the cutting edge can lose failure conditions such as gaps, tipping or edge curling and the like, the blade can quickly lose the service performance, and the service life of the blade is not ideal.
Disclosure of Invention
The invention aims to provide a pruning shear blade to solve the problem that a gap, a tipping or a rolling edge can occur at the cutting edge of the blade component.
In order to achieve the above object, the basic scheme of the invention is as follows: a pruning shear blade comprising a blade assembly formed from a high alloy martensitic stainless steel, the blade assembly having a heat treated hardness of HRC 50-60.
The principle and advantages of the basic scheme are as follows: after the blade assembly made of the high-alloy martensitic stainless steel with the hardness of HRC50-60 is subjected to heat treatment, the hardness of the pruning shear blade is greatly increased, and simultaneously, as the blade assembly has the characteristics of a high-alloy martensitic stainless steel product, the hardness is improved, and the toughness of the blade assembly is also well ensured; when the blade assembly is used for cutting branches, the blade edge of the blade assembly cannot be curled or collapsed, and the using performance of the pruning shear blade is well met.
The service life of the blade assembly is synchronously prolonged while the hardness and the toughness of the blade assembly are improved.
Meanwhile, when the blade assembly made of the high-alloy martensitic stainless steel is used under the use conditions of ice, rain, snow, water and the like, the rust defect can not be generated, the blade assembly can remove a surface plated link in the traditional pruning blade made of the traditional tool steel originally, and after the processing link is removed, the processing cost of the upper blade and the lower blade can be reduced, and the influence of a plated link process on the environment can be reduced; meanwhile, the upper blade and the lower blade do not need to be electroplated, so that the cutting edges of the upper blade and the lower blade cannot be plated, the cutting edges of the upper blade and the lower blade are kept sharp, and the better service performance and use effect are achieved.
Further, the high alloy martensitic stainless steel was 40Cr 13.
The 40Cr13 high-alloy martensitic stainless steel has both the hardness and the toughness of the blade assembly, and correspondingly, the cutting times of the high-alloy martensitic stainless steel on branches can reach 25 ten thousand times during cutting, so that the service life of the pruning shear blade is prolonged by 2-3 times compared with that of the traditional pruning shear blade, and the service life of the pruning shear blade is effectively prolonged.
Further, the heat treated hardness of the blade assembly was HRC 55-60.
Through the arrangement, the heat treatment hardness of the 40Cr13 high-alloy martensitic stainless steel is accurately controlled, the hardness and toughness of the blade component can be optimized, and the cutting performance and service life of the blade component can be optimized.
Further, the blade component comprises an upper blade and a lower blade, wherein the upper blade or the lower blade is provided with a mounting hole for the upper blade and the lower blade to rotate relatively, and the upper blade or the lower blade is provided with a plurality of oil grooves communicated with the mounting hole.
When the pruning shears are used, the upper blade and the lower blade realize relative rotation through the mounting holes, after the pruning shears are used for a long time, the lubrication at the relative rotation part of the upper blade and the lower blade is insufficient, and meanwhile, the shearing gap between the upper blade and the lower blade is small, so the friction between the upper blade and the lower blade and the friction between the upper blade and branches are serious; lubricating oil is injected into the oil groove at the moment, and flows into the mounting hole under the guidance of the oil groove, so that the mounting hole is lubricated, the upper blade and the lower blade realize shearing motion smoothly, and the friction loss between the upper blade and the lower blade can be reduced; meanwhile, the oil grooves can guide lubricating oil to the side faces of the upper blade and the lower blade, so that relative friction among the upper blade, the lower blade and the branches is reduced, the service life of the blade assembly can be greatly prolonged, and cutting of the pruning shears is kept light and fast.
Further, the oil groove is arranged on the side face of the upper blade or the lower blade, an annular groove is arranged on the side face of the upper blade or the lower blade, the annular groove and the mounting hole are coaxially arranged, and the annular groove is communicated with the oil groove.
The annular groove can guide the flow of the lubricating oil flowing into the periphery of the mounting hole from the oil groove, so that the side surface of the mounting hole is lubricated, and the relative rotation position of the upper blade and the lower blade can be sufficiently lubricated.
Furthermore, one side of the upper blade is a front knife face far away from the lower blade, the other side of the upper blade is provided with a blade groove, the surface of the blade groove is a rear angle face, and a blade is formed on the lower side of the blade groove; the back corner surface of the upper blade is provided with a wedge eliminating groove.
When shearing, the section department of branch is laminated earlier the cutting edge department of blade and is slided, and when section department when disappearing contract with the groove relative time, the terminal surface of branch can be fast with the back angle face of last blade and come off, has reduced the area of contact of the back angle face of last blade and branch section, and then can let the cutting more light and fast, promotes the sharpness of whole pruning scissors.
Furthermore, the wedge eliminating groove is arc-shaped, and one end of the wedge eliminating groove, which is far away from the mounting hole, is coplanar with the top surface of the upper blade.
Through the arrangement, the clearance eliminating groove can reduce the binding surface between the upper blade and the lower blade with small shearing clearance, so that the upper blade and the lower blade can be quickly separated and engaged when the pruning shears are used, and the cutting process is lighter and quicker; meanwhile, as the end of the wedge eliminating groove far away from the mounting hole is coplanar with the top surface of the upper blade, the pressure in the wedge eliminating groove is kept consistent with the atmospheric pressure, the pressure in the wedge eliminating groove can be prevented from being reduced, and the upper blade and the lower blade are more tightly attached together.
Furthermore, the cutting edge of the upper blade is positioned at the lower side of the wedge eliminating groove and is arc-shaped, and the center of the longitudinal section of the cutting edge is in the same point with the center of the longitudinal section of the wedge eliminating groove.
Through the arrangement, the wedge eliminating grooves are matched with the blade distribution of the upper blade, so that the strength of the upper blade at each position is kept consistent, and stable cutting is more convenient to carry out.
Further, the front tool face of the upper blade is a cambered surface recessed from the rear corner face of the upper blade.
When pruning is carried out, the section of one side of the branch away from the wedge eliminating groove is in contact with the rake face of the upper blade, when the end face of the branch is opposite to the cambered surface, the branch can be quickly separated from the rake face of the upper blade, the rake face of the upper blade is prevented from generating large abrasion, and the rake face of the upper blade can be protected.
Further, the quantity more than or equal to two of oil groove, and the oil groove sets up on the both sides of last blade, goes up the one end and the cutting edge groove intercommunication that the mounting hole was kept away from to the oil groove that the blade is close to bottom knife one side, goes up the one end and the cambered surface coplane that the mounting hole was kept away from to the oil groove that blade one side was kept away from to the blade.
Through the setting, can set up the oil groove on last blade, and let the oil groove that last blade kept away from bottom knife one side keep away from the one end and the cambered surface coplane of mounting hole for lubricating oil that enters into in the oil groove can flow to the cambered surface on, when the branch is when the cutting, when the section and the cambered surface of branch take place relative friction, the section of branch can be lubricated to the lubricating oil on the cambered surface, avoid taking place between the section of branch and the cambered surface of last blade to scrape sassafras, the side of avoiding going up the blade is damaged.
Drawings
FIG. 1 is a front view of a pair of blades of a pair of pruning shears according to the prior art and in example 1;
FIG. 2 is a schematic structural view of the lower blade of the pruning shears in the prior art and in the embodiment 1;
fig. 3 is a schematic structural view of an upper blade of a pruning shear blade in a front view direction according to embodiment 2 of the present invention;
FIG. 4 is a rear view of FIG. 3;
fig. 5 is a schematic structural view of an upper blade of a pruning shear blade in a front view direction according to embodiment 3 of the present invention;
FIG. 6 is a rear view of FIG. 5;
fig. 7 is a cross-sectional view taken at a-a in fig. 5.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the cutting tool comprises an upper blade 1, a lower blade 2, a clamping hole 11, a mounting hole 12, a rake face 13, a blade groove 14, a rear angle face 15, a wedge eliminating groove 16, a blade 17, an oil groove 18, an annular groove 19 and an arc face 20.
Example 1
Example 1 is substantially as shown in figures 1 and 2: a pruning shear blade comprises a blade assembly, the blade assembly comprises an upper blade 1 and a lower blade 2, the upper blade 1 and the lower blade 2 are made of high alloy martensitic stainless steel with the model number of 40Cr13, and the heat treatment hardness of the upper blade 1 and the lower blade 2 is HRC 55-60.
Compared with the conventional pruning shear blade made of the high-carbon tool steel SK5 with the hardness of HRC45-50, the pruning shear blade made of the material and the heat treatment hardness in the embodiment 1 has the advantages that the hardness of the upper blade 1 and the hardness of the lower blade 2 in the embodiment 1 are greatly increased, and due to the characteristics of the high-alloy martensitic stainless steel product, the hardness is improved, and meanwhile, the toughness is well guaranteed.
After the hardness and the toughness of the upper blade 1 and the lower blade 2 are ensured, when the upper blade 1 and the lower blade 2 cut branches, the upper blade 1 and the lower blade 2 cannot generate the conditions of edge curling and chipping, the service performance of the pruning shear blade is well met, meanwhile, the service life of the traditional pruning blade made of high-carbon tool steel SK5 is about 10 ten thousand times, and the service life of the upper blade 1 and the service life of the lower blade 2 in the embodiment 1 can reach 25 ten thousand times, so that the service life of the pruning shear blade is prolonged by 2-3 times compared with that of the traditional pruning shear blade.
Meanwhile, the upper blade 1 and the lower blade 2 are made of high-alloy martensitic stainless steel of 40Cr13, so that the antirust performance of the upper blade 1 and the lower blade 2 is far better than that of the traditional tool steel, and the rust defect can not be generated when the tool steel is used under the use conditions of ice, rain, snow, water and the like; meanwhile, the surface plating link in the traditional pruning blade which is originally made of traditional tool steel can be removed, and after the processing link is removed, the processing cost of the upper blade 1 and the lower blade 2 can be reduced, and the influence of the plating process on the environment can be reduced; meanwhile, the upper blade 1 and the lower blade 2 do not need to be electroplated, so that the cutting edges of the upper blade 1 and the lower blade 2 cannot be plated, the cutting edges of the upper blade 1 and the lower blade 2 are kept sharp, and the better service performance and use effect are achieved.
Example 2
Embodiment 2 is different from embodiment 1 in that, in embodiment 2, basically as shown in fig. 3 and 4, a clamping hole 11 is provided at the left end of an upper blade 1, a mounting hole 12 connected to a lower blade 2 is provided at the middle of the upper blade 1, as shown in fig. 4, the front side of the upper blade 1 is a front surface 13 far from the lower blade 2, as shown in fig. 3, a blade groove 14 formed by a blade 17 is provided at the front side of the upper blade 1, the surface of the blade groove 14 is a rear angle surface 15, and a wedge-eliminating groove 16 is provided at the rear angle surface 15 of the upper blade 1.
The cutting edge 17 of the upper blade 1 is positioned at the lower side of the wedge eliminating groove 16, the cutting edge 17 is arc-shaped, the wedge eliminating groove 16 is arc-shaped, the center of a longitudinal section of the cutting edge 17 is in the same point with the center of a longitudinal section of the wedge eliminating groove 16, and one end of the wedge eliminating groove 16, which is far away from the mounting hole 12, is coplanar with the top surface of the upper blade 1.
As shown in fig. 3, an oil groove 18 is horizontally arranged on the front side surface of the upper blade 1, an annular groove 19 is coaxially arranged at the mounting hole 12 of the upper blade 1, and the depth of the annular groove 19 is greater than that of the oil groove 18; the left end of the oil groove 18 communicates with the annular groove 19, and the right end of the oil groove 18 communicates with the blade groove 14.
When the pruning shears blade in the embodiment is used, the upper blade 1 and the lower blade 2 are welded with a handle on the pruning shears through the clamping holes 11, and the upper blade 1 and the lower blade 2 are fixedly connected at the mounting holes 12 by bolts and nuts, so that the pruning shears are formed.
After the pruning shears are used for a long time, lubricating oil between the upper blade 1 and the lower blade 2 is reduced, the upper blade 1 and the lower blade 2 are rotated at the moment, the upper blade 1 and the lower blade 2 are arranged in a staggered mode, the oil groove 18 is exposed from the space between the upper blade 1 and the lower blade 2, the lubricating oil is led into the oil groove 18 at the moment, the lubricating oil is led into the relative rotation position of the upper blade 1 and the lower blade 2 through the oil groove 18 to the annular groove 19, the friction resistance when the upper blade 1 and the lower blade 2 rotate relatively is reduced, and the pruning shears can cut more lightly.
When the lubricating oil in the oil groove 18 enters the annular groove 19, the lubricating oil also flows into the blade groove 14 and the wedge eliminating groove 16 through the right end of the oil groove 18, and then the upper blade 1 and the lower blade 2 are adhered to the side surfaces, so that when the pruning shears are used for pruning, the friction coefficient between the side surfaces of the upper blade 1 and the lower blade 2 and branches can be reduced; simultaneously when cuting, the section department of branch is laminated earlier and is gone up the vertical upwards slip of cutting edge 17 department of blade 1, and when section department and disappearing agree with groove 16 relative time, the terminal surface of branch can break away from with the rear angle face 15 of last blade 1 fast, has reduced the rear angle face 15 of last blade 1 and the sectional area of contact of branch, and then can let the cutting more light and fast, promotes the sharpness of whole pruning scissors.
Example 3
Embodiment 3 differs from embodiment 2 in that embodiment 3 is basically as shown in fig. 5, 6 and 7 in that the number of oil grooves 18 and annular grooves 19 is two, two oil grooves 18 and annular grooves 19 are provided on the front side and the rear side of the upper blade 1, respectively, the oil groove 18 on the side of the edge groove 14 of the upper blade 1 is disposed horizontally, the oil groove 18 on the rake face 13 is disposed obliquely, and the left end of the oil groove 18 is disposed obliquely downward.
As shown in fig. 7, the rake face 13 on the right side of the upper blade 1 is an arc face 20 recessed toward the left side of the upper blade 1, the longitudinal cross-sectional profile of the arc face 20 is an arc line, a tangent line at the lower end of the arc line and a vertical straight line form a positive rake angle, the positive rake angle is an acute angle, and the angle R of the positive rake angle is greater than 1 ° and less than 5 °; as shown in fig. 6, the left end of the oil groove 18 is coplanar with the cambered surface 20.
Compared with the embodiment 2, the pruning shear blade in the embodiment is different in that when the relative rotation position of the upper blade 1 and the lower blade 2 is indeed lubricated, the lubricating oil is dripped into the oil groove 18 on the front blade surface 13 of the upper blade 1, the oil groove 18 can lead the lubricating oil into the oil groove 18 on the side close to the rear angle surface 15 of the upper blade 1 through the annular groove 19, the mounting hole 12 and the annular groove 19 on the side close to the rear angle surface 15 of the upper blade 1 in sequence by the oil groove 18, so as to lubricate the cutting edge groove 14, the wedge-eliminating groove 16 and the rear angle surface 15, and the pruning shear can be lubricated without arranging the upper blade 1 and the lower blade 2 in a staggered mode.
When pruning is carried out, the section of one side of the branch, which is far away from the wedge eliminating groove 16, is in contact with the front cutter surface 13 of the upper blade 1, and when the end surface of the branch is opposite to the cambered surface 20, the branch can be quickly separated from the front cutter surface 13 of the upper blade 1; simultaneously, the oil groove 18 on the front tool face 13 guides lubricating oil into the arc face 20, the lubricating oil flows to the left lower side, close to the cutting edge 17, of the front tool face 13, the pruning operation can be lubricated, the cutting resistance is reduced, the light and pleasant feeling of cutting can be further improved, and the pruning shears are sharper in use.
Claims (10)
1. A pruning shear blade comprising a blade assembly formed from a high alloy martensitic stainless steel, said blade assembly having a heat treated hardness of HRC 50-60.
2. A pruning shear blade as claimed in claim 1, wherein said high alloy martensitic stainless steel is 40Cr 13.
3. A pruning shear blade as claimed in claim 2, wherein said blade assembly has a heat treated hardness of HRC 55-60.
4. The pruning shear blade of any one of claims 1-3, wherein the blade assembly comprises an upper blade and a lower blade, wherein the upper blade or the lower blade is provided with mounting holes for the upper blade and the lower blade to rotate relative to each other, and the upper blade or the lower blade is provided with a plurality of oil grooves communicated with the mounting holes.
5. The pruning shear blade of claim 4, wherein the oil groove is provided on a side surface of the upper blade or the lower blade, and an annular groove is provided on the side surface of the upper blade or the lower blade, the annular groove being coaxially provided with the mounting hole, and the annular groove being communicated with the oil groove.
6. The pruning shear blade of claim 5, wherein one side of the upper blade is a rake surface away from the lower blade, and the other side of the upper blade is provided with a blade groove, the surface of the blade groove is a back-angle surface, and the lower side of the blade groove forms a blade edge; and a wedge eliminating groove is arranged on the rear corner surface of the upper blade.
7. The pruning shear blade of claim 6, wherein the anti-wedging slot is arcuate and an end of the anti-wedging slot distal from the mounting hole is coplanar with a top surface of the upper blade.
8. The pruning shear blade of claim 7, wherein the cutting edge of the upper blade is positioned at the lower side of the stigmatic groove and is arc-shaped, and the center of the longitudinal section of the cutting edge is in the same point with the center of the longitudinal section of the stigmatic groove.
9. The pruning shear blade of claim 8, wherein the rake surface of the upper blade is a curved surface that is concave toward the rear corner surface of the upper blade.
10. The pruning shear blade of claim 9, wherein the number of the oil grooves is two or more, and the oil grooves are disposed on both sides of the upper blade, the end of the oil groove on the side of the upper blade close to the lower blade away from the mounting hole communicates with the blade groove, and the end of the oil groove on the side of the upper blade away from the lower blade away from the mounting hole is coplanar with the cambered surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010244345.7A CN111264207A (en) | 2020-03-31 | 2020-03-31 | Pruning shear blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010244345.7A CN111264207A (en) | 2020-03-31 | 2020-03-31 | Pruning shear blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111264207A true CN111264207A (en) | 2020-06-12 |
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ID=71000957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010244345.7A Pending CN111264207A (en) | 2020-03-31 | 2020-03-31 | Pruning shear blade |
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| Country | Link |
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| CN (1) | CN111264207A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114190180A (en) * | 2022-01-21 | 2022-03-18 | 重庆派斯克刀具制造股份有限公司 | Electric shearing blade |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB756952A (en) * | 1952-12-04 | 1956-09-12 | Wilkinson Sword Ltd | Improvements in blades for shears, secateurs, scissors or like tools |
| JPH1132577A (en) * | 1997-07-24 | 1999-02-09 | Mitsubishi Heavy Ind Ltd | Scissors |
| CN205848105U (en) * | 2016-08-03 | 2017-01-04 | 中国农业科学院郑州果树研究所 | A kind of Fructus Vitis viniferae inflorescence shaping tool |
| CN109392487A (en) * | 2018-12-19 | 2019-03-01 | 常州格力博有限公司 | Blade assembly and electric clippers with the blade assembly |
| CN213368812U (en) * | 2020-03-31 | 2021-06-08 | 重庆派斯克刀具制造股份有限公司 | Pruning shear blade |
-
2020
- 2020-03-31 CN CN202010244345.7A patent/CN111264207A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB756952A (en) * | 1952-12-04 | 1956-09-12 | Wilkinson Sword Ltd | Improvements in blades for shears, secateurs, scissors or like tools |
| JPH1132577A (en) * | 1997-07-24 | 1999-02-09 | Mitsubishi Heavy Ind Ltd | Scissors |
| CN205848105U (en) * | 2016-08-03 | 2017-01-04 | 中国农业科学院郑州果树研究所 | A kind of Fructus Vitis viniferae inflorescence shaping tool |
| CN109392487A (en) * | 2018-12-19 | 2019-03-01 | 常州格力博有限公司 | Blade assembly and electric clippers with the blade assembly |
| CN213368812U (en) * | 2020-03-31 | 2021-06-08 | 重庆派斯克刀具制造股份有限公司 | Pruning shear blade |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114190180A (en) * | 2022-01-21 | 2022-03-18 | 重庆派斯克刀具制造股份有限公司 | Electric shearing blade |
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