DE202014103611U1 - Cutting tool - Google Patents

Cutting tool

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Publication number
DE202014103611U1
DE202014103611U1 DE201420103611 DE202014103611U DE202014103611U1 DE 202014103611 U1 DE202014103611 U1 DE 202014103611U1 DE 201420103611 DE201420103611 DE 201420103611 DE 202014103611 U DE202014103611 U DE 202014103611U DE 202014103611 U1 DE202014103611 U1 DE 202014103611U1
Authority
DE
Germany
Prior art keywords
link
member
closure member
scissor arm
lever
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.)
Active
Application number
DE201420103611
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FORMOSA TOOLS CO
FORMOSA TOOLS Co Ltd
Original Assignee
FORMOSA TOOLS CO
FORMOSA TOOLS Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FORMOSA TOOLS CO, FORMOSA TOOLS Co Ltd filed Critical FORMOSA TOOLS CO
Priority to DE201420103611 priority Critical patent/DE202014103611U1/en
Publication of DE202014103611U1 publication Critical patent/DE202014103611U1/en
Application status is Active legal-status Critical
Anticipated expiration legal-status Critical

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G3/00Cutting implements specially adapted for horticultural purposes; Delimbing standing trees
    • A01G3/02Secateurs; Flower or fruit shears
    • A01G3/025Secateurs; Flower or fruit shears having elongated or extended handles
    • A01G3/0251Loppers, i.e. branch cutters with two handles

Abstract

Secateurs, which includes:
a first scissor arm having a first spline structure, a first post, and a scissor tip, wherein below the scissor tip a first axis member and a second axis member are provided and the first spline structure is disposed between the first post and the scissors tip;
a second scissor arm having a second spline structure, a second post, and a hinge member located between the second post and the second spline structure, wherein the first spline structure and the second spline structure are intermeshed;
a cutting blade comprising a first mounting member and a second mounting member;
a lever comprising a first link and a second link;
a first closure member including a protrusion, a third link, and a fourth link;
a second closure member including an arcuate projection, a fifth link, and a sixth link;
wherein the first link of the lever is rotatably supported by the second mounting member of the cutting blade and by a threaded screw the second link of the lever is attached to the fourth link of the first link and said threaded screw through the link of the second scissor arm and the sixth link of the second link pushed through and then tightened at the other end by a threaded nut, and wherein the third link of the first closure member is rotatably supported by a threaded screw on the second axis member of the first scissor arm and said thread screw then through the fifth link of the second closure member and at the end a threaded nut is tightened, and wherein the first mounting member of the cutting blade is rotatably mounted on the first axis member of the first scissor arm, and wherein the projection of the first closure member it together with the arcuate projection of the second closure member surrounds the toothing between the first tooth structure and the second tooth structure and is indirectly secured by means of the first closure member of the lever on the second scissor arm.

Description

  • Technical area
  • The present invention relates to a secateurs, which is particularly well suited for pruning or cutting hedge plants with thick shoot axes and hard branches. Against such plants comparatively high shear forces must be present. The present invention is characterized by the stabilizing and power-saving scissors structure.
  • State of the art
  • In the European patent EP 1 827 770 a hedge trimmer is already described: scissors, in particular hedge trimmers, with a first and a second scissor arm, which are pivotally connected relative to each other in a scissors joint (SG), with a first handle arm (GA1), which articulates in a first handle joint (GG1) connected to the first scissor arm (S1) and coupled via a toothed gear (ZG, ZS) to the second scissor arm (S2), and to a second scissor arm (S2) connected to the second gripper arm (GA2), characterized in that a lever ( HE) couples the second gripping arm (GA2) to the first gripping arm (GA1) and / or the first scissor arm (S1) and is rotatably articulated at both lever ends in a first (GG1) or second lever joint (HG).
  • The aforementioned invention discloses a hand-operated hedge trimmer. The power transmission between the handles and the cutting blades is influenced by the lever. It is thus achieved a good power gain. The toothing of the toothed gear or the tooth structure (ZG, ZS) is designed so that it is closed only on one side. On the other side there is no closure surface. In other words, a closure wall is formed at the top between the scissor arm S1 and the toothed gearing (ZG, ZS), whereas no closure wall is provided on the other side of the toothed gearing (ZG, ZS). If the objects are thick branches, it may happen that the blockage of thick branches causes the displacement between the two cutting blades, so that the cutting operation can not be carried out successfully. Furthermore, the displacement between the cutting blades can be transmitted to the toothed gear (ZG, ZS) and the teeth within the toothed gear (ZG, ZS) will not be able to continue functioning. It is also possible that under certain circumstances, a thick branch in the gear (ZG, ZS) gets into it, which can also lead to problems in the teeth.
  • Subject of the invention
  • It is a pruning shears, which comprises a first scissor arm, a second scissor arm, a cutting blade, a lever, a first closure member and a second closure member. In this case, the first gear structure and the second gear structure are meshed with each other and interlock. The lever is rotatably connected at both ends to the cutting blade, the first closure member and the second scissor arm. The first closure member is rotatably attached to the first scissor arm at one end and rotatably attached to the second scissor arm at the other end. The second closure member is rotatably attached to the first scissor arm at one end and also rotatably attached to the second scissor arm at the other end. In this case, the lever is rotatably mounted at one end by means of the first closure member and indirectly attached to the second scissor arm. The other end of the lever, however, is mounted directly rotatably on the cutting blade. The combination of the lever and the first closure member, which is rotatably mounted on the second scissor arm, fulfills the function of a linkage. Thus, energy-saving effects are achieved during the cutting operations. The first closure member and the second closure member act as a closure wall for the toothing, which consists of the first and the second tooth structure.
  • The present invention combines a spline structure with the structure of a rocker arm. The spline raceway between the first and second spline structures allows the first and second scissors arms to function stably and properly. In addition, the use of the lever and the first closure member in the first and the second scissor arm contributes to a better power transmission. Such a scissor structure allows a power-saving and stable operation for secateurs.
  • 1 shows an exploded view of the present invention.
  • 2 shows a three-dimensional front view of the present invention.
  • 3 shows a rear view of the present invention.
  • 4 shows a first scheme of the present invention in the open state.
  • 5 shows a second scheme of the present invention in the open state.
  • Technical implementation
  • As will be shown below, the present disclosure according to the attached figures is an advantageous embodiment of the scissor structure according to the invention.
  • Like from the 1 In this case, a pruning shears is presented, which comprises a scissors structure, the first scissor arm 1 , a second scissor arm 6 , a cutting blade 2 , a lever 4 , a first closure member 3 and a second closure member 5 having. The first scissor arm 1 has a first tooth structure 13 , a first stalk 12 as well as a scissor tip 11 , Below the tip of the scissors 11 there is a first axis member 14 and a second axis member 15 , The first tooth structure 13 is located between the tip of the scissors 11 and the first stalk. The second scissor arm 6 has a second tooth structure 62 and a second stem 61 , Between the second stalk 61 and the second tooth structure 62 is a joint member 63 arranged. This will be the first tooth structure 13 and the second tooth structure 62 meshed with each other and thus interlock. The cutting blade 2 has a third stem 22 on. The third stalk 22 has a first mounting member 23 and a second mounting member 24 on. The lever 4 has a first link 41 and a second link 42 , The first closure member 3 has a lead 33 , a third link 31 and a fourth link 32 on. The second closure member 5 has an arcuate projection 53 , a fifth link 51 and a sixth link 52 on. The first link 41 of the lever 4 is by a threaded screw 73 and a threaded nut 75 on the second mounting member 24 the cutting blade 2 attached. The second link 42 of the lever 4 is through the threaded screw 74 rotatably on the fourth link 32 of the first closure member 3 appropriate. The threaded screw 74 is through the joint member 63 of the second scissor arm 6 and the sixth link 52 of the second closure member 5 pushed through and through the threaded nut 78 screwed. The threaded screw 72 goes through the third link 31 of the first closure member 3 , the second axis member 15 of the first scissor arm 1 and the fifth link 51 of the second closure member 5 through and is at the end by the nut 76 screwed. In this case, the first mounting member 23 the cutting blade 2 through the threaded screw 71 on the first axis member 14 of the first scissor arm 1 attached and the threaded screw 71 is then through the threaded nut 77 tightened.
  • From the 4 and 5 the composite pruner comes out. As can easily be ascertained from the above description, the splice becomes between the first spline structure 13 and the second tooth structure 62 through the first closure member 3 and the second closure member 5 surround. That is, the lead 33 of the first closure member 3 is now the front wall for the first tooth structure 13 and the second tooth structure 62 existing interlocking point. Similarly, the arcuate projection 53 of the second closure member 5 the rear wall of the first gear structure 13 and the second tooth structure 62 existing interlocking point. When the toothed first tooth structure 13 and the second tooth structure 62 move, move the lead 33 of the first closure member 3 and the arcuate projection 53 of the second closure member with the toothing with. Thus, it is also ensured that the toothing between the first tooth structure 13 and the second tooth structure 62 always intact and functional. It is worth noting that the career of the first closure member 3 and the second closure member 5 which resembles a pendulum. Will the gearing between the first gearing structure 13 and the second tooth structure 62 set in motion, follow the first closure member 3 and the second closure member 5 and then cover the spline. Thus, the entire raceway is the first gearing structure 13 and the second tooth structure 62 through the lead 33 of the first closure member 3 and the arcuate projection 53 of the second closure member 5 surrounded, which also stabilizes the interlocking between the first tooth structure 13 and the second tooth structure 62 effect. Besides, the lever is 4 by means of the first closure member 3 indirectly on the second scissor arm 6 appropriate. This achieves energy-saving effects during shearing. In other words, cause the first closure member 3 and the second closure member 5 on the one hand both a stabilization for the toothing between the first tooth structure 13 and the second tooth structure 62 and on the other hand, the closure member assists 3 when the on the lever 4 attached cutting blade 2 cuts, the first scissor arm 1 and the second scissor arm 6 and contributes to power transmission. Such secateurs structure acts force-saving and stabilizing, which is exactly the first point, whereby the present invention is distinguished.
  • Furthermore, the secateurs make use of the principle of the linkage. Here are the first closure member 3 and the second closure member 5 Coupling members. The third link 31 of the first closure member 3 and the fifth link 51 of the second closing member 5 pose as a pivot. If the first closure member 3 and the second closure member 5 due to the second stem of the second scissor arm 6 is made to pivot, the drive point is below the pivot point. The drive point is the fourth link 32 and the sixth link 52 , At the same time, the lever located on the second link 42 driven. Using the first link 41 of the lever 4 the thrust force on the second mounting member 24 the cutting blade 2 transfer. Thus, the third stem 22 the cutting blade 2 pushed. The shearing process is based on the knife blade 21 the cutting blade 2 then done. Therefore, the first closure member function 3 and the second closure member 5 Both as coupling members of a linkage and as a stabilizing part for the toothing between the first tooth structure 13 and the second tooth structure 62 ,
  • In the above-mentioned cutting blade 2 acts the first mounting member 23 as a pivot. The third stem is the corresponding force arm. On the other hand, the second mounting member 24 the output joint. The third link 31 of the first closure member 3 is the pivot. The fourth link 32 is on the second scissor arm 6 appropriate. This results in that the first closure member 3 also becomes a power arm. At the same time the lever 4 through the first closure member 3 back and forth and repeatedly articulated. In turn, the lever steers 4 the cutting blade 2 and repeatedly performs the cutting process. That is, the third stem 22 forms together with the first closure member 3 (the second closure member 5 ) a rocker arm and the lever 4 is the coupling link between the third stem 22 and the first closure member 3 and the first closure member 3 moves synchronously with the second closure member 5 and acts as a power arm. Therefore, the required force on the second scissor arm is reduced for a consistent pendulum path, which is the second feature by which the present invention is characterized.
  • The present invention thus relates to a secateurs 1 wherein the scissor structure comprises a first scissor arm, a second scissor arm, a cutting blade, and at least one lever, wherein the first scissor arm has a first spline structure, the second scissor structure having a second spline structure and the first spline structure and the second spline structure interlock wherein at least one lever is rotatably connected respectively to the cutting blade, the first scissor arm and the second scissor arm, and wherein during the cutting operation by means of the lever, the first scissor arm and the second scissor arm, a force-saving effect is achieved and wherein the teeth of the lever a wall for the first tooth structure and the second tooth structure and at the same time stabilizes the track of the toothing.
  • The foregoing description together with the following features of the claims is for explanation only and is not to be interpreted as limiting the present invention. As understood by those skilled in the art, all such modified, modified, and combined forms of such features are also within the scope of the present invention.
  • LIST OF REFERENCE NUMBERS
  • 1
    first scissor arm
    2
    cutting blade
    3
    first closure member
    4
    lever
    5
    second closure member
    6
    second scissor arm
    11
    scissors tip
    12
    first stalk
    13
    first tooth structure
    14
    first rotary axis member
    15
    second rotary axis member
    22
    third stalk
    23
    first mounting member
    24
    second mounting member
    31
    third link
    32
    fourth link
    33
    head Start
    41
    first link
    42
    second link
    51
    fifth link
    52
    sixth link
    53
    arcuate projection
    61
    second stalk
    62
    second tooth structure
    63
    joint member
    71, 72, 73, 74
    screw
    75, 76, 77, 78
    threaded nut
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 1827770 [0002]

Claims (8)

  1. Secateurs, which includes: a first scissor arm having a first spline structure, a first post, and a scissor tip, a first axis member and a second axis member being provided below the scissor tip, and the first interdigitating structure being disposed between the first post and the scissors tip; a second scissor arm having a second spline structure, a second post, and a hinge member located between the second post and the second spline structure, wherein the first spline structure and the second spline structure are intermeshed; a cutting blade comprising a first mounting member and a second mounting member; a lever comprising a first link and a second link; a first closure member including a protrusion, a third link, and a fourth link; a second closure member including an arcuate projection, a fifth link, and a sixth link; wherein the first link of the lever is rotatably supported by the second mounting member of the cutting blade and by a threaded screw the second link of the lever is attached to the fourth link of the first link and said threaded screw through the link of the second scissor arm and the sixth link of the second link pushed through and then tightened at the other end by a threaded nut, and wherein the third link of the first closure member is rotatably supported by a threaded screw on the second axis member of the first scissor arm and said thread screw then through the fifth link of the second closure member and at the end a threaded nut is tightened, and wherein the first mounting member of the cutting blade is rotatably mounted on the first axis member of the first scissor arm, and wherein the projection of the first closure member it together with the arcuate projection of the second closure member surrounds the toothing between the first tooth structure and the second tooth structure and is indirectly secured by means of the first closure member of the lever on the second scissor arm.
  2. Secateurs comprising a first scissor arm, a second scissor arm, a cutting blade, a lever, a first closure member and a second closure member, the first scissor arm having a first spline structure and the second scissor arm having a second spline structure, the first splice structure and the second spline structure engage and at the two ends of the lever, respectively, the cutting blade and the second scissor arm is rotatably mounted and at the two ends of the first closure member each of the first scissor arm and the second scissor arm are rotatably mounted and the second closure member is fixedly secured to the first scissor arm , characterized in that the first closure member has a projection and the second closure member has an arcuate projection and the projection of the first closure member together with the arcuate projection of the second closure member, the toothing between the first Verzahnungsstrukur and the second tooth structure encloses, and wherein the first and the second closure member moves with the toothing.
  3. Secateurs according to claim 2, wherein the first scissor arm has a first axis member and a second axis member.
  4. Secateurs according to claim 2, wherein the second scissor arm has a hinge member.
  5. Pruning shears according to claim 2, wherein the cutting blade comprises a connecting structure having a first mounting member and a second mounting member.
  6. Secateurs according to claim 2, wherein the lever has a connecting member and a second connecting member.
  7. Secateurs according to claim 2, wherein the first closure member has a third link and a fourth link.
  8. Secateurs according to claim 2, wherein the second closure member has a fifth connecting member and a sixth connecting member.
DE201420103611 2014-08-04 2014-08-04 Cutting tool Active DE202014103611U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE201420103611 DE202014103611U1 (en) 2014-08-04 2014-08-04 Cutting tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201420103611 DE202014103611U1 (en) 2014-08-04 2014-08-04 Cutting tool

Publications (1)

Publication Number Publication Date
DE202014103611U1 true DE202014103611U1 (en) 2014-11-20

Family

ID=52017748

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
DE (1) DE202014103611U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150135914A1 (en) * 2013-11-20 2015-05-21 Fiskars Brands, Inc. Cutting tool with a variable pivot system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1827770A1 (en) 2004-12-17 2007-09-05 GARDENA Manufacturing GmbH Clippers, especially hedge clippers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1827770A1 (en) 2004-12-17 2007-09-05 GARDENA Manufacturing GmbH Clippers, especially hedge clippers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150135914A1 (en) * 2013-11-20 2015-05-21 Fiskars Brands, Inc. Cutting tool with a variable pivot system
US9345200B2 (en) * 2013-11-20 2016-05-24 Fiskars Brands, Inc. Cutting tool with a variable pivot system
US9655305B2 (en) 2013-11-20 2017-05-23 Fiskars Brands, Inc. Cutting tool with a variable pivot system
US10321635B2 (en) 2013-11-20 2019-06-18 Fiskars Finland Oy Ab Cutting tool with a variable pivot system

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Legal Events

Date Code Title Description
R207 Utility model specification

Effective date: 20141231

R150 Term of protection extended to 6 years