EP1412581A1 - Pilon comportant une poignee de guidage antivibratoire - Google Patents

Pilon comportant une poignee de guidage antivibratoire

Info

Publication number
EP1412581A1
EP1412581A1 EP02762402A EP02762402A EP1412581A1 EP 1412581 A1 EP1412581 A1 EP 1412581A1 EP 02762402 A EP02762402 A EP 02762402A EP 02762402 A EP02762402 A EP 02762402A EP 1412581 A1 EP1412581 A1 EP 1412581A1
Authority
EP
European Patent Office
Prior art keywords
handle
ramming device
mass
upper mass
intermediate member
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Withdrawn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
EP02762402A
Other languages
German (de)
English (en)
Inventor
Dirk Burkert
Martin Greppmair
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.)
Wacker Construction Equipment AG
Original Assignee
Wacker Construction Equipment AG
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 Wacker Construction Equipment AG filed Critical Wacker Construction Equipment AG
Publication of EP1412581A1 publication Critical patent/EP1412581A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/35—Hand-held or hand-guided tools

Definitions

  • the invention relates to a ramming device for soil compaction according to the preamble of claim 1, with an upper mass and a lower mass, which can be moved linearly and in opposite directions to one another by a drive and can be guided by hand over a work area by means of a handle.
  • the upper mass usually includes a drive motor and a crank mechanism.
  • the lower mass comprises a ramming plate and an integrated spring-mass system which reinforces the effect of the drive.
  • the connection area between the upper and lower mass is usually closed off to the outside by a bellows.
  • the vibrations occurring in the handle area represent a serious problem.
  • the accelerations transmitted to the hand and arm of the operator must be kept as low as possible. It is common to connect the handlebar to the upper mass of the device and, by skillful mass distribution on the handlebar, matching lever lengths, different design of damping elements and selected position of the handle area in relation to the center of gravity, the hand-arm acceleration within the desired limits hold.
  • the problem is exacerbated by the fact that during certain tasks, such as stuffing pipes or embankment compaction, the operators tend to leave the intended grip area, stand to the side of the device and thereby grip the handle at places where the permissible acceleration values are exceeded.
  • the invention is based, to reduce the acceleration on the handlebar in general, regardless of which point of the handlebar is gripped the task.
  • the handle bar with the upper mass and the lower mass Connected via an intermediate member extending between the upper mass and the lower mass, in the area of which the movements or mass forces emanating from the upper mass and the lower mass largely compensate.
  • the handle is not connected to the upper mass having a relatively high vibration amplitude, but to that area of the device which has the lowest vibration amplitude, because the opposing vibrations of the upper and lower mass largely cancel each other out.
  • the handle bar is preferably connected to the intermediate member on both sides of the ramming device.
  • a first embodiment of the invention uses the bellows extending between the upper and lower mass as an intermediate member, with the fold connected to the handle being enclosed by a clamp adapted to the outer radius of the fold, on one of which, according to an expedient embodiment Movement of the handle participating connector is connected.
  • Another very advantageous embodiment of the invention consists in that the intermediate member is essentially firmly connected to the handle and the upper mass and the lower mass are each movably connected to the intermediate member via rockers. This eliminates the need to design or equip the bellows, if necessary, especially for its task as an intermediate link.
  • a preferred embodiment consists in that the rockers are arranged on both sides of the upper mass and the lower mass has an extension which extends into the area outside the upper mass and on which the rockers for connecting the lower mass to the intermediate member are mounted.
  • This extension can, for example, in the form of rods or as an apron protecting the bellows.
  • the rockers are preferably mounted at least at one end via damping torsion elements.
  • a further embodiment according to the invention consists in that the intermediate member is formed by double-acting spring struts connected to the handle, the guide housing of which is attached to the upper mass, while two guide rods which are movable relative to one another and to the guide housing are arranged one below the other and with the guide housing by means of rows , at the same time springs acting as tension and compression springs are connected and one guide rod is connected to the handle and the other guide rod to the lower mass.
  • FIG. 1 is a side view of a first embodiment of a tamper designed according to the invention
  • FIG. 2 shows a side view of a second embodiment of a rammer designed according to the invention
  • FIG. 3 shows a side view of a third embodiment of a rammer designed according to the invention
  • Fig. 4 is a side view of a fourth embodiment of a rammer designed according to the invention.
  • FIG. 5 shows a section through the arrangement of the shock absorber shown in FIG. 4.
  • the tamper shown comprise three essential subassemblies: an upper mass 10 containing the drive in a known manner, a lower mass 12 which is movable relative to the upper mass 10 and moves up and down in opposite directions, and a handle bar 14 which serves to guide the device.
  • the handle bracket 14 carries a fuel tank 16 for supplying energy to the drive motor forming part of the upper mass 10.
  • the handle bracket 14 can be provided with a cover 18 and a crane bracket, not shown, for transporting the device on a construction site.
  • the drive connection between the upper mass 10 and lower mass 12 is made by a gear.
  • the gear and / or a guide between the upper and lower mass are enclosed by a bellows 20 which is fastened to the upper mass 10 by a clamp 22 and to the lower mass 12 by a clamp 24.
  • the bellows 20 has four folds.
  • the ramming device when guided over the handle 14, can perform a movement essentially parallel to the surface of the floor, the direction of movement being parallel to the plane of the drawing.
  • the second fold from above is that area of the device where, relative to the floor on which the device is supported and on which the person guiding the ramming device stands over the handle bar, the smallest Movement occurs.
  • the grip bracket 14 in the tamping devices shown in FIGS. 1 and 2 is in the region of the second fold 26 of the bellows 20 seen from above with that from the upper mass 10 and the lower mass 12 existing, pounding assembly.
  • a clamp 28 which surrounds the bellows 20 from the outside appropriate.
  • guide rods 30 are arranged on both sides of the device, which serve to transfer the executives exercised by the operator to the handle bar 14 to the entire device, and in the direction of the tamping movement between the upper mass 10 and undersize 12 extend and are fastened on the one hand to the clamp 28 and on the other hand to the guide bracket 14.
  • the guide rods 30 are guided in the direction of the ramming movement by a guide 32 attached to the upper mass 10.
  • the guide can also be provided on the lower mass 12 or on the upper and lower mass.
  • a slide bearing, an axial ball bearing or a ball bushing or else an elastic rod guide can serve as the guide 32.
  • the guide rods 30 for damping fine vibrations are connected to the handle bracket 14 via connecting sleeves 34 with elastic intermediate elements 36.
  • the assembly consisting of handle bar 14, fuel tank 16, cover 18 and guide rods 30 is made as light as possible.
  • the distance between the second fold 26 and the adjacent, circumferential folds of the bellows 20 is increased to twice the usual distance, as can be seen from above between the third and fourth fold.
  • the rigidity of the second fold 26 intended to receive the clamp 28 and the load supported on this is designed to be somewhat more stable than that of the other movable folds.
  • a corresponding effect can also be achieved by a support or guide ring made of well sliding plastic, which is provided from the inside in the area of the second fold 26.
  • a support or guide ring made of well sliding plastic, which is provided from the inside in the area of the second fold 26.
  • Such a ring can prevent the compression of the fold 26, but also the abrasion of the inner fold on the guide cylinder between the upper and lower mass, for which purpose the ring, not shown, is inserted into the bellows 20.
  • the fold 26 consist of a circumferential bead with a corresponding undercut, according to a variant not shown, on which with a kind of bellows protection, eg. B. made of wear-resistant plastic, the fold is pinched and the handle bar 14 is received with its load by means of a rod made of pipes or spring steel.
  • a kind of bellows protection eg. B. made of wear-resistant plastic
  • FIG. 2 shows a variant in which the guide 32 of the guide rods 30 on the upper mass 10 shown in FIG. 1 is replaced by a torsion bush 38 with a rocker 40 mounted therein and reaching to the guide rod 30, the pivoting of the Swing arm 40 occurring torsional forces additionally dampen the vibrations transmitted via the guide rods 30.
  • the guide rods 30 connected to the handle bar 14 in the manner already described and guided in slide guides 32 are not connected to the bellows 20, but via two rocker pairs 42 and 44 on the one hand to the upper mass 10 and on the other hand to the lower mass 12 coupled.
  • the pairs of rockers 42 and 44 are preferably arranged on both sides of the upper mass, which is why the lower mass 12 has an extension 66 which extends into the area outside the upper mass 10.
  • rocker pairs 42 and 44 can be in differently hard torsion elements 46 and 48 on the Upper mass 10 or the lower mass 12 can be stored to the balance different ways. Alternatively, swing arms of different lengths can also be used.
  • connection between the pairs of rockers 42 and 44 and the guide rods 30 can be made via simple pivot points 50 or 52 or also via torsion elements. If the vibration system is correctly designed, the handle bar 14 is hardly loaded in the first movement phase, when the lower mass 12 goes up and the upper mass 10 goes down, and will therefore hardly move. In the second movement phase, when the lower mass 12 hits the floor, the upper mass 10 inevitably goes up, so that the forces are released again and the handle bar 14 is also hardly loaded and moved.
  • FIGS. 4 and 5 show a variant of this, with a pair of double-acting spring struts 54 being provided instead of the damping rocker pairs 42 and 44 with the associated torsion elements 46 and 48 and optionally 50 or 52.
  • a guide housing 56 of the spring strut 54 contains two spring plates 58 and 60.
  • the spring plate 58 is connected to a first guide rod 62 which projects upwards from an end face of the housing 56 and the second spring plate 60 is connected to a second guide rod 64 which projects downwards.
  • a first spring 68 acting as a tension and compression spring, is arranged between the first spring plate 58 and the upper end of the housing 56, while a second spring 70 of this type is arranged between the first spring plate 58 and the second spring plate 60.
  • the guide housing 56 is connected to the upper mass 10, the first guide rod 62 to the handle bar 14 and the second guide rod 64 to the lower mass 12, so that the opposing forces in the opposite movements of the lower and upper mass 10, 12 in Compensate the area of the struts 54 and the remaining vibrations are kept away from the handle bar 14 by the damping action of the springs 68 and 70.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Agronomy & Crop Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Road Paving Machines (AREA)
  • Percussive Tools And Related Accessories (AREA)

Abstract

L'invention concerne un pilon de compactage du sol comportant un corps supérieur (10) et un corps inférieur (12) pouvant être déplacés de manière linéaire et opposée l'un par rapport à l'autre par l'intermédiaire d'un entraînement, d'un guide et d'un système amortisseur intégré, ledit pilon pouvant être déplacé manuellement sur une zone de travail par l'intermédiaire d'une poignée (14). Pour transmettre un minimum de vibrations à la poignée (14), cette dernière est reliée au corps supérieur (10) et au corps inférieur (12) au moyen d'un élément intermédiaire (20) s'étendant entre le corps supérieur (10) et le corps inférieur (12), les forces de mouvements et de masses provenant des corps supérieur (10) et corps inférieur (12) étant largement compensées au niveau dudit élément intermédiaire.
EP02762402A 2001-07-31 2002-07-26 Pilon comportant une poignee de guidage antivibratoire Withdrawn EP1412581A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10137337 2001-07-31
DE10137337A DE10137337A1 (de) 2001-07-31 2001-07-31 Stampfer mit schwingungsarmem Führungbügel
PCT/EP2002/008346 WO2003012205A1 (fr) 2001-07-31 2002-07-26 Pilon comportant une poignee de guidage antivibratoire

Publications (1)

Publication Number Publication Date
EP1412581A1 true EP1412581A1 (fr) 2004-04-28

Family

ID=7693753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02762402A Withdrawn EP1412581A1 (fr) 2001-07-31 2002-07-26 Pilon comportant une poignee de guidage antivibratoire

Country Status (5)

Country Link
US (1) US20040234337A1 (fr)
EP (1) EP1412581A1 (fr)
JP (1) JP2004537662A (fr)
DE (1) DE10137337A1 (fr)
WO (1) WO2003012205A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004043195B4 (de) 2004-09-03 2022-02-10 Andreas Stihl Ag & Co. Kg Führungsrahmen für ein Erdbohrgerät
EP2245229A1 (fr) * 2008-01-24 2010-11-03 Lord Corporation Compacteur motorisé de sol de construction et procédé de fabrication
DE102009017209B4 (de) * 2009-04-09 2011-05-05 Bomag Gmbh Bodenverdichtungsmaschine mit Verbrennungsmotor und verbesserter Luftzuführung
DE102010046401A1 (de) * 2010-09-23 2012-01-19 Bomag Gmbh Arbeitsgerät zur Verdichtung eines Untergrundes
DE102014011179A1 (de) 2014-07-31 2016-02-04 Wacker Neuson Produktion GmbH & Co. KG Bodenverdichtungsvorrichtung mit Abfederung und Führung
DE102016105950A1 (de) * 2016-03-31 2017-10-05 Wacker Neuson Produktion GmbH & Co. KG Bodenverdichtungsvorrichtung mit entkoppeltem Führungshandgriff
GB2604347A (en) * 2021-03-01 2022-09-07 Black & Decker Inc A compacting power tool

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3109354A (en) * 1961-01-03 1963-11-05 Jay Corp Tamping device
SE370969B (fr) * 1972-01-13 1974-11-04 Dynapac Maskin Ab
DE4433243A1 (de) * 1994-09-19 1996-03-28 Diehl Remscheid Gmbh & Co Führungsrahmen mit Handführung für Verdichter
DE19714555C2 (de) * 1997-04-09 2001-06-21 Wacker Werke Kg Arbeitsgerät, insbesondere Stampfgerät zur Bodenverdichtung oder Hammer
DE19739742C2 (de) * 1997-09-10 1999-10-21 Wacker Werke Kg Arbeitsgerät mit Massenausgleich am Kurbeltrieb
DE19830979C2 (de) * 1998-07-10 2002-10-24 Wacker Werke Kg Stampfgerät mit schwingungsgedämpftem Führungszylinder

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO03012205A1 *

Also Published As

Publication number Publication date
DE10137337A1 (de) 2003-04-03
WO2003012205A1 (fr) 2003-02-13
US20040234337A1 (en) 2004-11-25
JP2004537662A (ja) 2004-12-16
WO2003012205B1 (fr) 2003-04-03

Similar Documents

Publication Publication Date Title
DE3447401C2 (fr)
EP0949988B1 (fr) Marteau piqueur/perforateur avec poignee suspendue sur ressort contre le carter du marteau
EP1882558B1 (fr) Outil à main doté d'un dispositif de découplage
DE202007019274U1 (de) Dämpfungssystem für einen Griff
EP2980316B1 (fr) Dispositif de compactage de sol avec amortissement et guidage
EP1404493A1 (fr) Machine-outil portative presentant une poignee avec un systeme d'amortissement des vibrations
DE10235191A1 (de) Roboter
WO2006021466A1 (fr) Systeme de prehension de machine-outil portative pourvu d'une unite antivibrations
DE102010055673A1 (de) Handgeführtes Arbeitsgerät
EP1127983B1 (fr) Plaque vibrante
EP1412581A1 (fr) Pilon comportant une poignee de guidage antivibratoire
EP0947409A1 (fr) Véhicule ferroviaire avec un vérin vertical de support
EP1691954B1 (fr) Marteau perforateur et/ou marteau pneumatique comportant un manche guide lineairement
DE202009000264U1 (de) Dämpfungselement
DE2231167A1 (de) Energie-absorbierende stosstangenvorrichtung
EP0446681B1 (fr) Dispositif amortisseur de vibrations pour oscillations verticales
DE1135310B (de) Dynamischer Schwingungsdaempfer fuer eine Kraftfahrzeugradachse
DE10138123A1 (de) Handwerkzeugmaschine mit vibrationsgedämpftem Handgriff
EP1957715A1 (fr) Plaque vibrante dotee d'un dispositif de stabilisation
CH659803A5 (de) Schlingerdaempfungsanordnung fuer drehgestell-schienenfahrzeuge.
DE4445188C2 (de) Gerät zur Bodenverdichtung
EP1108350A1 (fr) Machine de travail pour aérer le sous-sol
EP0662371A1 (fr) Poignée à amortissement des vibrations
EP0427001A1 (fr) Chariot élévateur avec un mât de levage disposé mobilement
DE3419356C1 (de) Anbauvorrichtung fuer das Spritzgestaenge einer Feldspritze

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

17P Request for examination filed

Effective date: 20031222

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BURKERT, DIRK

Inventor name: GREPPMAIR, MARTIN

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

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20050905