EP0082140A1 - Dispositif d'extraction et/ou de desintegration de materiau en piece - Google Patents

Dispositif d'extraction et/ou de desintegration de materiau en piece

Info

Publication number
EP0082140A1
EP0082140A1 EP19810902003 EP81902003A EP0082140A1 EP 0082140 A1 EP0082140 A1 EP 0082140A1 EP 19810902003 EP19810902003 EP 19810902003 EP 81902003 A EP81902003 A EP 81902003A EP 0082140 A1 EP0082140 A1 EP 0082140A1
Authority
EP
European Patent Office
Prior art keywords
arm
arms
cooperating
movable
knives
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.)
Withdrawn
Application number
EP19810902003
Other languages
German (de)
English (en)
Inventor
Ulf Strindlund
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.)
Ulf Strindlund Ingenjorsfirma
Original Assignee
Ulf Strindlund Ingenjorsfirma
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 Ulf Strindlund Ingenjorsfirma filed Critical Ulf Strindlund Ingenjorsfirma
Publication of EP0082140A1 publication Critical patent/EP0082140A1/fr
Withdrawn legal-status Critical Current

Links

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
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/06—Uprooting or pulling up trees; Extracting or eliminating stumps
    • A01G23/067—Uprooting or pulling up trees; Extracting or eliminating stumps by comminuting the tree stumps

Definitions

  • This invention relates to a device for extracting and/or disintegrating piece materials, the device comprisin a -base with two or three arms, one or two of which are movable, one movable arm cooperating with one fixed or one movable arm and at least one of the cooperating arms being arcuate with its concave portion facing the other coopera ⁇ ting arm-
  • Such piece ' materials which can be treated by means of the device of the invention include materials which can be recovered, such as big objects on refuse or scrap dumps, e.g. refrigerators and the like,, but specifically wood waste, and above all stumps. At stump extracting on a large scale for utilization of stump wood it is of a great im ⁇ portance that the stumps are .
  • the gripping and splitting device consists of a hydrpulically operated, very thick and relatively blunt steel plate . , which is pressed in between two counter supports to carry out splitting.
  • the steel plate is very thick to resist the lateral breaking effects normally occuring when splitting stumps. •
  • the most essential disadvantages if this known devic 3 is, - except that it is very heavy and works too slowly - that the splitting device requires very- great forces when splitting stump wood and that the bluntness of the splitting device also causes considerable wood losses in the form of splintered and crushed wood which is lost in a following wood cleaning process. Now it has been found possible to reduce wood losses to a considerable extent and to reduce the force required for the splitting.
  • the device of the invention which is characterized in that two cooperating arms are provided w ⁇ ith fixed or replaceable knives cooper- ating with each other and fixed during the disintegration in a plane of motion in such a way that at least one of them is provided with a groove adapted to receive a por ⁇ tion of the other cooperating arm intended for this in order to guide the arms and the knives, respectively. relative to each other.
  • the device can be suspended on the front of a forest engine running on wheels nr bands or in a crane jib(b om) of such a wood engine. ⁇ .Then carrying " ut splitting Cdisint.e- gration)it is of a great importance that the splitting means (knives) are as sharp as possible so that smooth section surfaces are obtained and wood losses are mini ⁇ mized in this way.
  • splitting stumps it is suitable to cam- out the cut through the central ⁇ ortion nf the stump parallelly to the direction of the fibers; thanks to thi- ⁇ essentially less force is required for cleaving (splitting) the stump wood.
  • the arms are usually hydraulically operated and one arm is preferably shaped as a hook with an extended and reinforced outer portion (lower portion) on the very hook to achieve a contact surface to the ground intended for use in stump extraction.
  • the hook end can be shaped as a fork but is preferably made in the form of a tip which can be removed or replaced. It is suitable that either, or above all., both these tips are made in the fcrm of a wedge (axe) so that these tips can be used in cleaving (breaking) .
  • this device can comprise a base, on which a hydrauli- cally operated knife is movably attached, which knife works against another knife (counter knife) .
  • the extension of the movable knife slides into a guide at the movement of the knife, the edge of the knife being retained after the knife nose has entered the guide, in a plane of motion common to the counter knife independently of the fact if the material to be split lies perpendicularly to the knives or not.
  • the knife nose is thus preferably formed like a wedge penetrating the stump before the knives are brought into engagement.
  • a hook-shaped arm (the lower leg) is projected as a tip to facilitate penetration of the arm under a stump
  • this tip is also preferably formed like a wedge, both wed ⁇ ges penetrating into the stump from each their direction, which facilitates breaking (cleaving) of the stump.
  • both arms_ar.e movable i.e. also the counter knife is movable.
  • the knives are preferably straight, their grinding (sharpening) being easier.
  • the knives can be. divided into .two or more straight lengths which form angles between themselves. They are preferably arranged so that the knife edges-form a concave line against the knife edges of a cooperating arm. In principle . , there is ho ever nothing that prevents the knives from being curved, and also in this case ' the curvature is arranged so that the indicated concavity is provided.
  • the invention provides for a device for extracting and disintegrating a piece material; particularly stumps, compri ⁇ -i-ng a base with two cooperating pivotable arms, movable substantially in the same, common plane of motion, the end of each arm being provided with ah wedge-shaped tip adapted to cleave the stump.
  • the device shown in Figs. 3 and 4 for extracting and/or disintegration especially stumps comprises a base 1 j hydraulically operated (4., 12) arms 5, 11 ncvably attached to the base 1 , one arm 5 being somewhat curved and carrying knives 9 ⁇ vorking against counter knives 7
  • the device When used at extracting and/or splitting stumps the device can either be operated in a direction away from th ⁇ * supporting device (wood engine or the-like) against the stump or towards the supporting device and the stump.
  • th ⁇ * supporting device wood engine or the-like
  • the tip 10 of the arm 11 is first pressed in under the stump, which can be facilitated by the pressure plate S being alternatively pressed against the ground so that a leverage is obtained.
  • the introduction of the device under the stump is also facilitated hy the nose 5 of the am 3 being pressed against the stu ⁇ p by the hydraulic means 4.
  • the device can then be operated by the hydraulic means so that the tip 10 is entered almost horizontally to the stump from one of its sides, after w r hich the stump is split by means of the wedge of the nose tip 13 and the knives 9. Finally the stump parts are broken up from the ground in the manner described- After extracting the stump portions or the whole stump the extracted parts can be further split by the aid of the knives 9 and 7.
  • the essential parts of the device illustrated in Figs. 6 and 7 are the base 1 with the pivotically movable arms 5, 11 having wedge shaped tips 10, 13 which can be replaceable.
  • the tips are provided with sharp edges to cleave the stumps.
  • the tip are preferably made of steel. It is possible to dispense with the guiding groove 6 and the knives on the concave portion of the arms.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Environmental Sciences (AREA)
  • Shovels (AREA)

Abstract

Un dispositif est destiné à être adapté sur une machine de travail, tel qu'un engin d'exploitation forestière, pour prendre et/ou désintégrer un matériau en pièce, en particulier des souches, le dispositif comprenant une base (1) sur laquelle deux ou trois bras (3, 11, 14) sont adaptés. Un ou deux de ces bras (3, 11) sont mobiles et un tel bras mobile (3) coopère avec un bras fixe (11, 14) et/ou un bras mobile (11). Au moins l'un (11) des deux bras travaillant en coopération (3, 11) est arqué et possède une partie concave regardant l'autre bras travaillant en coopération (3). Deux de ces bras de coopération (3, 11) sont pourvus de lames (9, 7) qui coopèrent entre elles et sont fixées pendant la désintégration dans un plan commun de mouvement de telle manière qu'au moins l'un (11) des bras de coopération (3, 11) est pourvu d'une rainure (6) adaptée pour recevoir une portion (5) de l'autre bras de coopération (3) de manière à guider les bras (3, 11) et les lames (9, 7) respectivement, les uns par rapport aux autres.
EP19810902003 1981-06-26 1981-06-26 Dispositif d'extraction et/ou de desintegration de materiau en piece Withdrawn EP0082140A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE1981/000189 WO1983000079A1 (fr) 1981-06-26 1981-06-26 Dispositif d'extraction et/ou de desintegration de materiau en piece

Publications (1)

Publication Number Publication Date
EP0082140A1 true EP0082140A1 (fr) 1983-06-29

Family

ID=20342878

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19810902003 Withdrawn EP0082140A1 (fr) 1981-06-26 1981-06-26 Dispositif d'extraction et/ou de desintegration de materiau en piece

Country Status (2)

Country Link
EP (1) EP0082140A1 (fr)
WO (1) WO1983000079A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI126476B (fi) 2015-11-12 2016-12-30 Ramtec Oy Kannonnostolaite, järjestelmä ja menetelmä kannon nostamiseksi

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645159A (en) * 1970-01-28 1972-02-29 Julius L Chazen Alligator shears
US3752064A (en) * 1971-06-07 1973-08-14 M Suzuki Machine for shearing and compressing scrap metals
FI47826C (fi) * 1971-09-24 1974-04-10 Pallari Kantojen nosto- ja murskauslaite
FI58708C (fi) * 1976-06-01 1981-04-10 Oesterbergin Konepaja Stubbrytare
SE413829C (sv) * 1977-03-17 1986-07-14 Cranab Ab Aggregat for upptagning och sonderdelning av stubbar

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8300079A1 *

Also Published As

Publication number Publication date
WO1983000079A1 (fr) 1983-01-20

Similar Documents

Publication Publication Date Title
US4168729A (en) Underwater self-gripping pile cutting device
EP1161135B1 (fr) Appareil d'excavation et de fragmentation de souches d'arbres
US6338511B1 (en) Root cutting shovel
US3814152A (en) Stump pulling and crushing device
AU647004B2 (en) Mobile wood and tire shear
US4481989A (en) Tree stump extractor
US6490815B1 (en) Excavator bucket with ripping implement
US6311417B1 (en) Excavator bucket assembly
US20030014886A1 (en) Tree and stump removal
US7520306B1 (en) Tree remover
US4682638A (en) Stump-extracting tool
US4615367A (en) Backhoe log splitter
EP0082140A1 (fr) Dispositif d'extraction et/ou de desintegration de materiau en piece
WO2013176612A1 (fr) Dispositif de coupe pour un ensemble excavatrice ou pelle rétrocaveuse
EP2252139B1 (fr) Lame de défrichage
US4301845A (en) Tree shear
US9043963B2 (en) Tree stump excavation tool
KR20200060134A (ko) 굴착기용 안전 집게 가위
CA2455695A1 (fr) Defonceuse a dents multiples
JP4009395B2 (ja) 高信頼性プレ−ト切断特性を有する大型解体剪断機
EP0712570B1 (fr) Appareil de récolte d'arbres avec marteau à coup
CN203872703U (zh) 一种树根挖掘刀
CA2985604C (fr) Dispositif de pointe de grappin et methode
JP7049380B2 (ja) 樹木切断のための把持装置
US3450209A (en) Easy sidewalk edger

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT CH DE FR LI SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830907

RIN1 Information on inventor provided before grant (corrected)

Inventor name: STRINDLUND, ULF