US20050172499A1 - Gear-driven shears provided with a curved plate a movable jaw - Google Patents
Gear-driven shears provided with a curved plate a movable jaw Download PDFInfo
- Publication number
- US20050172499A1 US20050172499A1 US10/771,316 US77131604A US2005172499A1 US 20050172499 A1 US20050172499 A1 US 20050172499A1 US 77131604 A US77131604 A US 77131604A US 2005172499 A1 US2005172499 A1 US 2005172499A1
- Authority
- US
- United States
- Prior art keywords
- movable jaw
- curved plate
- grip
- plate
- gear
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
- B26B13/00—Hand shears; Scissors
- B26B13/26—Hand shears; Scissors with intermediate links between the grips and the blades, e.g. for remote actuation
-
- 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
Definitions
- the present invention relates generally to a gear-drive shear, and more particularly to a gear-drive shear which movable jaw provided with curved plate.
- This invention is the improvement based on the prior shear structure, especially the gear-drive shear.
- the characteristic of this shear structure differs from the general shear in that the movable jaw is not connected with driving grip, but by means of gear wheel module's inter-meshing so as to have an advantage in saving labor and splaying more easily and efficiently.
- One end of the movable jaw is rotating by means of gear's meshing with the gear wheel module.
- This structure is lack of flexibility despite the character of toughness because the movable jaw is made of hard steel as a whole. Therefore when trimming sticks, it is easier to cause a troublesome problem of being blocked off no matter when it is closing or opening.
- One end of the corresponding grip of the movable jaw must be in the gear shape. It must be made of hard steel because the movable jaw should have a function of cropping and cutting. But the cost of material is comparatively high and it is not easy to produce so the integrative gear structure started from the end of jaw will obviously increase costs and it acts against economic benefits.
- the tooth edge of the movable jaw will be installed on the curved plate and change the previously integrality of the tooth edge. Because the curved plate is suitable to be made of flexible materials, it is easier to process the tooth edge. While the movable jaw which must be made of hard steel can also omit the tooth edge so as to simplify the structure and decrease the processing difficulty. As for the industry, it can therefore reduce production costs and produce better products.
- FIG. 1 shows a perspective view of the present invention.
- FIG. 2 shows an exploded view of the present invention.
- FIG. 3 shows a partial amplificatory example of FIG. 2 .
- FIG. 4 shows a usage ichnography one: opening of the grip.
- FIG. 5 shows a usage ichnography two: closing of the grip.
- a gear-drive shear embodied in the present invention comprises:
- One side of the movable jaw 40 is additionally equipped with a curved plate 70 .
- One end of the curved plate 70 is also installed on the first pivot axle 01 of the plate assembly module sharing the same rotating point with the movable jaw 40 . Meanwhile it is installed on the first edge 71 of the curved plate 70 together with the first tooth edge 41 of the movable jaw 40 mentioned above.
- the second edge of the curved plate 70 is equipped with wedge 72 , which is locked in the notch 42 on one side of the movable jaw 40 .
- the middle section 73 of curved plate 70 is made into a curve, such as in the shape of “ ⁇ ” shown in the annex or in the shape of arc.
- the wedge 72 of the curved plate 70 can be made into a round and formed an edge notch 74 so as to set up a round notch cooperated with the notch 42 of the movable jaw 40 .
- One side of the notch 42 is set up to be a flange 43 to mesh with the edge notch 74 mentioned above.
- the gear-drive shear is shown in FIGS. 4-5 .
- the first gear wheel 51 and the second gear wheel 52 will mesh at the same time.
- the second gear wheel 52 may mesh with the tooth edge 41 of the curved plate 70 subsequently. Therefore, the opening and closing of the wedge 72 and notch 42 will synchronously motivate the opening and closing of the movable jaw 40 .
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Biodiversity & Conservation Biology (AREA)
- Ecology (AREA)
- Environmental Sciences (AREA)
- Gears, Cams (AREA)
Abstract
A gear-drive shear comprises two grips, the fixed jaw, and the movable jaw and gear wheel module. The fixed jaw and the first grip are connected together at a joint of plate assembly module. The corresponding ends of movable jaw and the second grip are installed on the first pivot axle and second pivot axle of the plate assemble module. This gear wheel module consists of two gears. They are installed between the corresponding ends of the movable jaw and the second grip on the plate assembly module respectively, among which, the same sides of these two gears jointly mesh with the tooth edge of the second grip, while the other side of the second gear wheel meshes with the tooth edge of the movable jaw. The characteristic of the invention is that one curved plate is installed additionally on one side of the movable jaw. Its first end is also installed on the first pivot axle of the plate assembly module sharing the same rotating point with the movable jaw. Meanwhile it is installed on the first edge of the curved plate together with the first tooth edge of the movable jaw. The second edge of the curved plate is equipped with wedge, which is locked in the notch on one side of the movable jaw. The middle section of curved plate is made into a curve. Therefore, mainly with the added curved plate, the rotating of the movable jaw is more flexibly and the pattern of the movable jaw is simplified so as to achieve the economic benefits of reducing production costs. Above are the functions and purposes of the invention.
Description
- Not applicable.
- Not applicable.
- Not applicable.
- The present invention relates generally to a gear-drive shear, and more particularly to a gear-drive shear which movable jaw provided with curved plate.
- This invention is the improvement based on the prior shear structure, especially the gear-drive shear. The characteristic of this shear structure differs from the general shear in that the movable jaw is not connected with driving grip, but by means of gear wheel module's inter-meshing so as to have an advantage in saving labor and splaying more easily and efficiently.
- The defects of the prior structure in practice are as follows:
- 1. One end of the movable jaw is rotating by means of gear's meshing with the gear wheel module. This structure is lack of flexibility despite the character of toughness because the movable jaw is made of hard steel as a whole. Therefore when trimming sticks, it is easier to cause a troublesome problem of being blocked off no matter when it is closing or opening.
- 2. One end of the corresponding grip of the movable jaw must be in the gear shape. It must be made of hard steel because the movable jaw should have a function of cropping and cutting. But the cost of material is comparatively high and it is not easy to produce so the integrative gear structure started from the end of jaw will obviously increase costs and it acts against economic benefits.
- Therefore, aiming at the problems existing in the prior gear-drive shear, it is a requirement in the industry to improve a more practical and effective new structure.
- The benefits of the invention are as follows:
- 1. It provides a structure of gear-drive shear with an added curved plate on one side of the movable jaw, which is the first invention of the kind in the industry and meets the new-model patent requirement of novelty.
- 2. Mainly with the added curved plate, the opening and closing of the movable jaw is more flexible and intensive, and therefore result in a supplementary interplay to facilitate the user to use them more practically and effectively with less labor in operation. It meets the new-model patent requirement of advancement.
- Also, with the added curved plate, the tooth edge of the movable jaw will be installed on the curved plate and change the previously integrality of the tooth edge. Because the curved plate is suitable to be made of flexible materials, it is easier to process the tooth edge. While the movable jaw which must be made of hard steel can also omit the tooth edge so as to simplify the structure and decrease the processing difficulty. As for the industry, it can therefore reduce production costs and produce better products.
-
FIG. 1 shows a perspective view of the present invention. -
FIG. 2 shows an exploded view of the present invention. -
FIG. 3 shows a partial amplificatory example ofFIG. 2 . -
FIG. 4 shows a usage ichnography one: opening of the grip. -
FIG. 5 shows a usage ichnography two: closing of the grip. - As shown in
FIGS. 1-4 , a gear-drive shear embodied in the present invention comprises: -
- the
first grip 10, thesecond grip 20, the fixed jaw 30, themovable jaw 40 andgear wheel module 50, among which, the fixed jaw and the first grip are connected together at a joint ofplate assembly module 60 in the shape of ampliative plate. The corresponding ends of themovable jaw 40 and thesecond grip 20 are installed slanting on the plate assemblemodule 60 respectively to the correspondingfirst pivot axle 01 andsecond pivot axle 02. The corresponding ends of themovable jaw 40 and thesecond grip 20 are equipped withtooth edges gear wheel module 50 consists of thefirst gear wheel 51 and thesecond gear wheel 52. These two groups of gears are installed between the corresponding ends of themovable jaw 40 and thesecond grip 20 on theplate assembly module 60, among which, the same sides of these two groups ofgears tooth edge 21 of thesecond grip 20, while the other side of thesecond gear wheel 52 meshes with thetooth edge 41 of themovable jaw 40. The characteristic is as follows:
- the
- One side of the
movable jaw 40 is additionally equipped with acurved plate 70. One end of thecurved plate 70 is also installed on thefirst pivot axle 01 of the plate assembly module sharing the same rotating point with themovable jaw 40. Meanwhile it is installed on thefirst edge 71 of thecurved plate 70 together with thefirst tooth edge 41 of themovable jaw 40 mentioned above. The second edge of thecurved plate 70 is equipped withwedge 72, which is locked in thenotch 42 on one side of themovable jaw 40. Moreover, themiddle section 73 ofcurved plate 70 is made into a curve, such as in the shape of “<” shown in the annex or in the shape of arc. - The
wedge 72 of thecurved plate 70 can be made into a round and formed anedge notch 74 so as to set up a round notch cooperated with thenotch 42 of themovable jaw 40. One side of thenotch 42 is set up to be aflange 43 to mesh with theedge notch 74 mentioned above. - With the structure mentioned above, the opening and closing of the invention, the gear-drive shear is shown in
FIGS. 4-5 . When thesecond grip 20 is rotating, thefirst gear wheel 51 and thesecond gear wheel 52 will mesh at the same time. Then thesecond gear wheel 52 may mesh with thetooth edge 41 of thecurved plate 70 subsequently. Therefore, the opening and closing of thewedge 72 andnotch 42 will synchronously motivate the opening and closing of themovable jaw 40. - The features and the advantages of the present invention will be more readily understood upon a thoughtful deliberation of the following detailed description of a preferred embodiment of the present invention with reference to the accompanying drawings.
Claims (3)
1. A gear-driven shear comprising:
a first grip;
a second grip;
a fixed jaw, connected with the first grip with a plate assemble module at a joint;
a first pivot axle and a second pivot axle being installed slanting on the plate assemble module; wherein said second pivot axle is for assembling with the second grip;
a movable jaw, assembled on a first pivot axle of the plate assembly module;
a gear wheel module, comprised of the first gear wheel and the second gear wheel; wherein two groups of gears are installed between corresponding ends of the movable jaw and the second grip on the plate assembly module respectively, among which, the one side of these two groups of gears meshes with the tooth edge of the movable jaw;
a curved plate, installed additionally on one side of the movable jaw, wherein one end of the curved plate is also installed on the first pivot axle of the plate assembly module sharing the same rotating point with the movable jaw; and wherein said first edge of curved plate is set installed with tooth edge and mesh with the second gear wheel mentioned above; and wherein said second edge of the curved plate is equipped with wedge, which is locked in the notch on one side of the movable jaw; and wherein a middle section of said curved plate is made into a curve.
2. The gear-driven shear defined in claim 1 , wherein said wedge of the curved plate can be made into a round and formed a edge notch so as to set up a round notch cooperated with the notch of the movable jaw; and wherein one side of the notch is set up to be a flange to mesh with said edge notch.
3. The gear-drive shear defined in claim 1 , wherein said middle section of the curved plate can be made in the shape of “<”.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/771,316 US6935031B1 (en) | 2004-02-05 | 2004-02-05 | Gear-driven shears provided with a curved plate on a movable jaw |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/771,316 US6935031B1 (en) | 2004-02-05 | 2004-02-05 | Gear-driven shears provided with a curved plate on a movable jaw |
Publications (2)
Publication Number | Publication Date |
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US20050172499A1 true US20050172499A1 (en) | 2005-08-11 |
US6935031B1 US6935031B1 (en) | 2005-08-30 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US10/771,316 Expired - Fee Related US6935031B1 (en) | 2004-02-05 | 2004-02-05 | Gear-driven shears provided with a curved plate on a movable jaw |
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Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009006588A1 (en) * | 2007-07-03 | 2009-01-08 | Milwaukee Electric Tool Corporation | Pipe cutter |
US20090217534A1 (en) * | 2006-05-09 | 2009-09-03 | Olavi Linden | Cutting tool |
US20100043237A1 (en) * | 2008-08-19 | 2010-02-25 | Fiskars Brands Finland Oy Ab | Cutting tool |
US20100043238A1 (en) * | 2008-08-19 | 2010-02-25 | Fiskars Brands Finland Oy Ab | Cutting tool |
US20100139100A1 (en) * | 2008-12-05 | 2010-06-10 | Duane D. Robertson | Ratcheting cutting tool for plastic pipes |
US20100199502A1 (en) * | 2007-05-22 | 2010-08-12 | Fiskars Brands Finland Oy Ab | Pruning shears |
US20100223794A1 (en) * | 2009-03-03 | 2010-09-09 | Fiskars Brands, Inc. | Cutting tool with variable mechanical advantage |
US20110154669A1 (en) * | 2009-12-25 | 2011-06-30 | Hongbin Liu | Double strength pruners |
US20110154668A1 (en) * | 2009-12-25 | 2011-06-30 | Hongbin Liu | Double strength loppers |
US20120198705A1 (en) * | 2011-02-08 | 2012-08-09 | Ho Cheng Garden Tools Co., Ltd. | Garden shears that avoid loosening of a shaft pin |
ES2454090R1 (en) * | 2012-10-09 | 2014-05-05 | Eduard Mondragón Condeminas | Simultaneous cutting device with two tubular elements |
CN108834608A (en) * | 2018-07-27 | 2018-11-20 | 涂小平 | A kind of gardens hand-bill |
US10182530B1 (en) * | 2017-07-21 | 2019-01-22 | Ho Cheng Garden Tools Co., Ltd. | Handheld gardening gear shears |
USD953131S1 (en) * | 2021-07-01 | 2022-05-31 | Hongwei Liu | Pruning shears |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2197002A (en) * | 2000-12-05 | 2002-06-18 | Hispaes S A | Portable, motor-powered shears |
US7926186B2 (en) * | 2005-10-28 | 2011-04-19 | Mcloughlin John E | Releasable pike pole |
US8127587B2 (en) * | 2006-11-22 | 2012-03-06 | Thomas Michael Hughes | Emergency flow stoppage tool |
US20080155835A1 (en) * | 2006-12-28 | 2008-07-03 | Thomas Lin | Flower shears |
US9486864B2 (en) | 2007-07-03 | 2016-11-08 | Milwaukee Electric Tool Corporation | Pipe cutter |
CN201352909Y (en) * | 2008-12-31 | 2009-12-02 | 维胜特企业股份有限公司 | Garden shears capable of increasing the shearing area |
TW201038187A (en) * | 2009-04-28 | 2010-11-01 | Natura Innovation Ltd | Labor-saving gardening shear |
FI20096328A (en) * | 2009-12-15 | 2011-06-16 | Fiskars Brands Finland Oy Ab | Procedure for the manufacture of hand tool handles and hand tool handles |
US20130042486A1 (en) * | 2011-08-18 | 2013-02-21 | Duracraft Products Co., Ltd. | Gardening shears |
US8679140B2 (en) * | 2012-05-30 | 2014-03-25 | Covidien Lp | Surgical clamping device with ratcheting grip lock |
US20140053413A1 (en) * | 2012-08-23 | 2014-02-27 | Ho Cheng Garden Tools Co., Ltd. | Garden shears |
EP3192352B1 (en) * | 2013-11-20 | 2018-11-07 | Fiskars Brands, Inc. | Cutting tool with a variable pivot system |
FI126504B (en) | 2015-10-13 | 2017-01-13 | Fiskars Finland Oy Ab | clippers |
US9914008B2 (en) * | 2015-12-03 | 2018-03-13 | Academus Solutions, LLC | Locking rotational suspension training system |
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US3210844A (en) * | 1962-10-08 | 1965-10-12 | Tontscheff Todor Kaniov | Cutting pliers |
US4677748A (en) * | 1985-12-20 | 1987-07-07 | Kobayashi Tools Mfg. Co., Ltd. | Hand-operated cable cutter |
US4779342A (en) * | 1986-08-09 | 1988-10-25 | Kobayashi Tools Mfg., Co. Ltd. | Hand-operated cable cutter with gear drive |
US6260277B1 (en) * | 2000-03-06 | 2001-07-17 | Chin-Sung Wu | Handles of gardening shears |
US6681492B1 (en) * | 2002-07-05 | 2004-01-27 | Yao-Chung Huang | Tree pruner provided with means to facilitate a series of continuous scissors actions on the same incision |
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Patent Citations (7)
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US107577A (en) * | 1870-09-20 | Improvement in pruning-shears | ||
US508022A (en) * | 1893-11-07 | Peter kamphaus | ||
US3210844A (en) * | 1962-10-08 | 1965-10-12 | Tontscheff Todor Kaniov | Cutting pliers |
US4677748A (en) * | 1985-12-20 | 1987-07-07 | Kobayashi Tools Mfg. Co., Ltd. | Hand-operated cable cutter |
US4779342A (en) * | 1986-08-09 | 1988-10-25 | Kobayashi Tools Mfg., Co. Ltd. | Hand-operated cable cutter with gear drive |
US6260277B1 (en) * | 2000-03-06 | 2001-07-17 | Chin-Sung Wu | Handles of gardening shears |
US6681492B1 (en) * | 2002-07-05 | 2004-01-27 | Yao-Chung Huang | Tree pruner provided with means to facilitate a series of continuous scissors actions on the same incision |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8136252B2 (en) | 2006-05-09 | 2012-03-20 | Fiskars Brands Finland Oy Ab | Cutting tool |
US20090217534A1 (en) * | 2006-05-09 | 2009-09-03 | Olavi Linden | Cutting tool |
US20100199502A1 (en) * | 2007-05-22 | 2010-08-12 | Fiskars Brands Finland Oy Ab | Pruning shears |
US8220163B2 (en) | 2007-05-22 | 2012-07-17 | Fiskars Brands Finlay Oy AB | Pruning shears |
GB2464850A (en) * | 2007-07-03 | 2010-05-05 | Milwaukee Electric Tool Corp | Pipe cutter |
GB2464850B (en) * | 2007-07-03 | 2012-04-04 | Milwaukee Electric Tool Corp | Pipe cutter |
WO2009006588A1 (en) * | 2007-07-03 | 2009-01-08 | Milwaukee Electric Tool Corporation | Pipe cutter |
US8458912B2 (en) | 2008-08-19 | 2013-06-11 | Fiskars Brands Finland Oy Ab | Cutting tool |
US8220164B2 (en) * | 2008-08-19 | 2012-07-17 | Fiskars Brands Finland Oy Ab | Cutting tool |
US20100043237A1 (en) * | 2008-08-19 | 2010-02-25 | Fiskars Brands Finland Oy Ab | Cutting tool |
US20100043238A1 (en) * | 2008-08-19 | 2010-02-25 | Fiskars Brands Finland Oy Ab | Cutting tool |
US20100139100A1 (en) * | 2008-12-05 | 2010-06-10 | Duane D. Robertson | Ratcheting cutting tool for plastic pipes |
US8024864B2 (en) * | 2008-12-05 | 2011-09-27 | Duane D. Robertson | Ratcheting cutting tool for plastic pipes |
US8046924B2 (en) | 2009-03-03 | 2011-11-01 | Fiskars Brands, Inc. | Cutting tool with variable mechanical advantage |
USRE45488E1 (en) | 2009-03-03 | 2015-04-28 | Fiskars Brands, Inc. | Cutting tool with variable mechanic advantage |
US20100223794A1 (en) * | 2009-03-03 | 2010-09-09 | Fiskars Brands, Inc. | Cutting tool with variable mechanical advantage |
US20110154668A1 (en) * | 2009-12-25 | 2011-06-30 | Hongbin Liu | Double strength loppers |
US20110154669A1 (en) * | 2009-12-25 | 2011-06-30 | Hongbin Liu | Double strength pruners |
US8601698B2 (en) * | 2011-02-08 | 2013-12-10 | Ho Cheng Garden Tools Co., Ltd. | Garden shears that avoid loosening of a shaft pin |
US20120198705A1 (en) * | 2011-02-08 | 2012-08-09 | Ho Cheng Garden Tools Co., Ltd. | Garden shears that avoid loosening of a shaft pin |
ES2454090R1 (en) * | 2012-10-09 | 2014-05-05 | Eduard Mondragón Condeminas | Simultaneous cutting device with two tubular elements |
US10182530B1 (en) * | 2017-07-21 | 2019-01-22 | Ho Cheng Garden Tools Co., Ltd. | Handheld gardening gear shears |
US20190021234A1 (en) * | 2017-07-21 | 2019-01-24 | Ho Cheng Garden Tools Co., Ltd. | Handheld Gardening Gear Shears |
CN108834608A (en) * | 2018-07-27 | 2018-11-20 | 涂小平 | A kind of gardens hand-bill |
USD953131S1 (en) * | 2021-07-01 | 2022-05-31 | Hongwei Liu | Pruning shears |
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