US3660898A - Cutting tool - Google Patents

Cutting tool Download PDF

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Publication number
US3660898A
US3660898A US55034A US3660898DA US3660898A US 3660898 A US3660898 A US 3660898A US 55034 A US55034 A US 55034A US 3660898D A US3660898D A US 3660898DA US 3660898 A US3660898 A US 3660898A
Authority
US
United States
Prior art keywords
steel blade
guide member
abutment
tool
cutting
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.)
Expired - Lifetime
Application number
US55034A
Other languages
English (en)
Inventor
Per Sigvard Hast
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.)
PER SIGVARD HAST
Original Assignee
PER SIGVARD HAST
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 PER SIGVARD HAST filed Critical PER SIGVARD HAST
Application granted granted Critical
Publication of US3660898A publication Critical patent/US3660898A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D29/00—Hand-held metal-shearing or metal-cutting devices
    • B23D29/02—Hand-operated metal-shearing devices
    • B23D29/023—Hand-operated metal-shearing devices for cutting wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B17/00—Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact
    • B26B17/02—Hand cutting tools, i.e. with the cutting action actuated by muscle power with two jaws which come into abutting contact with jaws operated indirectly by the handles, e.g. through cams or toggle levers

Definitions

  • ABSTRACT A tool for cutting branches, hoses, electrical conductors, and like objects comprises a stationary part with an abutment, and a cutting part displaceable towardsthe abutment, said parts being separated in such manner that the object to be cut can be inserted laterally therebetween.
  • the cutting part is a thin steel blade which is guided in a slot in a guide member.
  • the guide member is displaceable towards the abutment and cooperates with a guide in the stationary part, and besides the steel blade and the guide member cooperate with spring means tending to retain the steel blade within the guide part.
  • This invention relates'to a tool for cutting branches, hoses, electrical conductors, and like objects, comprising a stationary part with an abutment, and a cutting part displaceable towards the abutment, said parts being separated in such manner that the object to be out can be inserted laterally therebetween, the cutting part being a thin steel blade which is guided in a slot in a guide member.
  • the tool of the present invention is essentially characterized in that the guide member is displaceable towards the abutment and cooperates with a guide in the stationary part, and that the steel blade and the guide member cooperate with spring means tending to retain the steel blade within the guide part.
  • the displaceable guide member prevents the steel blade from bending laterally, and the blade therefore can be subjected to heavy pressures without breaking.
  • FIG. 1 is a side view of a tool which has begun to cut a branch
  • FIG. 2 likewise is a lateral view, but with certain portions removed, the cutting of the branch not yet having begin;
  • FIGS. 3-5 are sections of leg details, taken along lines III- Ill, lV-IV, and VV in FIG. 1.
  • the tool of the present invention is in the form of pliers having two legs 1 and 2.
  • the leg 1 is formed with an abutment 3 opposite a cutting part 4 displaceably mounted in said leg and adapted to be displaced towards the abutment by means of the leg 2 which is pivotally attached to the leg 1.
  • the cutting part 4 is a thin steel blade having a thickness of preferably 0.5 mm. To avoid any risk of breaking, the steel blade is guided in a slot 5 fitting the blade and provided in a guide member 6. v
  • the steel blade 4 and the guide member 6 cooperate with spring means 7 tending to move the blade and the guide member towards the abutment 3 with the steel blade 4 located within the guide member 6.
  • the spring means may tend to move the steel blade 4 and the guide member 6 away from the abutment 3, with the blade 4 located within the guide member 6.
  • the guide member 6 is mounted on a rod 8 displaceable in the leg 1.
  • the steel blade 4 is secured to a rack 9, and the rack end facing away from the blade 4 is bent and formed with an aperture through which the rod 8 extends, thereby serving as a guide for the rack 9.
  • the leg 2 has a ratchet 10 which is'adapted, for pushing the steel blade 4 out of the guide member 6, to engage the teeth of the rack 9 connected with the blade.
  • the ratchet l0 cooperates with a spring 11 and besides has a setscrew 12 by which the stepwise advance made possible by the rack 9 and the ratchet 10 can be set.
  • the steel blade 4 is pushed out of the guide member 6 against the action of spring means 13 consisting of a helical spring fitted on the rod 8.
  • spring means 13 consisting of a helical spring fitted on the rod 8.
  • One end of the spring 13 tends to urge the apertured end of the rack 9 against a stop 14 on the rod 8, and with this stop also the helical spring 7 cooperates.
  • the stop 14 is so located that the front edge of the steel blade 4 lies at the front edge of the guide member 6 when the apertured end of the rack 9 rests against the stop 14.
  • the spring 13 is so dimensioned that it returns the rack 9 against the stop 14 when the steel blade 4 is not subjected to frictional forces by the object which is being out, i.e., the steel blade is returned to initial position when the cutting operation has been completed.
  • the ratchet 10 naturally must not engage any of the teeth of the rack 9, and to this end the ratchet 10 is so fonned that, when the leg 2 has beenswung completely inwards, it is held out of engagement with the rack 9 by the outwardly curved portion
  • the cutting edge 16 of the steel blade 4 is arcuate, preferably in the form of a circular arc or an ellipse, the top of the edge facing the abutment 3.
  • An important features is that the cutting edge 16 lies in the center plane of the steel blade 4, whereby the blade cannot be inclined during the cutting operationflhe blade 4 is mounted for easy exchange.
  • the guide member 6 has a projection 17 which is to be brought into engagement with the branch or like object to be cut, in order to facilitate insertion of the branch in the tool into engagement with the abutment 3.
  • the spring means 7 tends to move the steel blade 4 and the guide member 6 away from the abutment 3, the tool need not have the projection 17.
  • the leg 2 can be swung towards the leg 1 against the action of a spring 18 mounted on the outside of the tool to permit the guide member 6 to be inserted therein.
  • the rack cooperates with a roller 19 adapted to roll against the bottom of the leg 1.
  • the rod 8 has a recess 20 accommodating the roller 19.
  • the legs 1 and 2 and the abutment 3 are formed of bent sheet metal, but other possibilities exist.
  • a tool for cutting branches, hoses, electrical conductors and like objects comprising a stationary part with an abutment, and a cutting part displaceable towards the abutment, said parts being separated in such manner that the object to be cut can be inserted laterally therebetween, the cutting part being a thin steel blade which is guided in a slot in a guide member, characterized in that the guide member is displaceable towards the abutment and cooperates with a guide in the stationary part, and that the steel blade and the guide member cooperate with spring means tending to retain the steel blade within the guide part.
  • a tool as claimed in claim 1 characterized in that it has a stepping device for pushing the steel blade out of the guide member.
  • a tool as claimed in claim 1 characterized in that the cutting edge of the steel blade lies in the centre plane of said blade.
  • a tool as claimed in claim 1 characterized in that the cutting edge of the steel blade is arcuately fonned with its top facing the abutment.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Shearing Machines (AREA)
  • Scissors And Nippers (AREA)
US55034A 1969-08-06 1970-07-15 Cutting tool Expired - Lifetime US3660898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE10969/69A SE336766B (enrdf_load_stackoverflow) 1969-08-06 1969-08-06

Publications (1)

Publication Number Publication Date
US3660898A true US3660898A (en) 1972-05-09

Family

ID=20293143

Family Applications (1)

Application Number Title Priority Date Filing Date
US55034A Expired - Lifetime US3660898A (en) 1969-08-06 1970-07-15 Cutting tool

Country Status (8)

Country Link
US (1) US3660898A (enrdf_load_stackoverflow)
JP (1) JPS5013509B1 (enrdf_load_stackoverflow)
CA (1) CA927085A (enrdf_load_stackoverflow)
CH (1) CH518779A (enrdf_load_stackoverflow)
DE (1) DE2035286A1 (enrdf_load_stackoverflow)
FR (1) FR2056572A5 (enrdf_load_stackoverflow)
GB (1) GB1304082A (enrdf_load_stackoverflow)
SE (1) SE336766B (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10033168B2 (en) * 2014-07-03 2018-07-24 Ppc Broadband, Inc. Modular blade cartridge for a cable stripping tool and a stripping tool utilizing a modular blade cartridge
CN114131693A (zh) * 2021-11-29 2022-03-04 上海机器人产业技术研究院有限公司 一种浮动式割带机构

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4254549A (en) * 1978-12-15 1981-03-10 Hastings Fiber Glass Products, Inc. Cable cutter
FR2455427A1 (fr) * 1979-05-02 1980-11-28 Fiskars Ab Oy Outil d'elagage a lames de cisaillage
FR2635480B2 (fr) * 1986-04-22 1994-07-01 Deloubes Jean Pierre Disposition de montage et d'articulation concernant particulierement les secateurs et les coupes cables a deux mains
DK110193A (da) * 1993-09-30 1995-03-31 Per Baunsgaard Klemmeanordning
JP4709353B2 (ja) * 2000-06-22 2011-06-22 株式会社永木精機 ケーブルカッター
GB2447303B (en) * 2007-05-10 2009-09-23 Ho Cheng Garden Tools Co Ltd Gardening shears having an energy-saving function

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1819135A (en) * 1929-04-11 1931-08-18 Brev Fort Soc D Expl Des Portable shearing tool

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1819135A (en) * 1929-04-11 1931-08-18 Brev Fort Soc D Expl Des Portable shearing tool

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10033168B2 (en) * 2014-07-03 2018-07-24 Ppc Broadband, Inc. Modular blade cartridge for a cable stripping tool and a stripping tool utilizing a modular blade cartridge
CN114131693A (zh) * 2021-11-29 2022-03-04 上海机器人产业技术研究院有限公司 一种浮动式割带机构

Also Published As

Publication number Publication date
FR2056572A5 (enrdf_load_stackoverflow) 1971-05-14
CH518779A (de) 1972-02-15
DE2035286A1 (de) 1971-02-18
SE336766B (enrdf_load_stackoverflow) 1971-07-12
CA927085A (en) 1973-05-29
JPS5013509B1 (enrdf_load_stackoverflow) 1975-05-20
GB1304082A (enrdf_load_stackoverflow) 1973-01-24

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