US20040234337A1 - Stamper comprising a low-oscillation guiding handle - Google Patents

Stamper comprising a low-oscillation guiding handle Download PDF

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Publication number
US20040234337A1
US20040234337A1 US10/485,717 US48571704A US2004234337A1 US 20040234337 A1 US20040234337 A1 US 20040234337A1 US 48571704 A US48571704 A US 48571704A US 2004234337 A1 US2004234337 A1 US 2004234337A1
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US
United States
Prior art keywords
handle
recited
stamping apparatus
mass
upper mass
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.)
Abandoned
Application number
US10/485,717
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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
Assigned to WACKER CONSTRUCTION EQUIPMENT AG reassignment WACKER CONSTRUCTION EQUIPMENT AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GREPPMAIR, MARTIN, BURKERT, DIRK
Publication of US20040234337A1 publication Critical patent/US20040234337A1/en
Abandoned legal-status Critical Current

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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 present invention relates to a stamping apparatus for soil compacting according to the preamble of patent claim 1 , having an upper mass and a lower mass that can be moved in linear fashion and in opposite directions to one another by a drive, and that can be guided over a working area by hand using a grasping handle.
  • the upper mass includes a drive motor and a crank mechanism.
  • the lower mass includes a stamper plate and an integrated spring-mass system that amplifies the effect of the drive.
  • the area of connection between the upper and lower mass is standardly outwardly sealed by a bellows.
  • the underlying object of the present invention is to achieve a quite general reduction of the acceleration at the handle, independent of the point at which the handle is grasped.
  • the handle is connected with the upper mass and with the lower mass via an intermediate link that extends between the upper mass and the lower mass, in the area of which the movements or mass forces emanating from the upper mass and from the lower mass largely compensate one another.
  • the handle is connected not to the upper mass, which has a relatively high oscillation amplitude, but rather to that area of the apparatus that exhibits the lowest oscillation amplitude, because at this point the oscillations of the upper and the lower mass, which act opposite one another, largely cancel one another out.
  • the handle is connected with the intermediate element at both sides of the stamping apparatus.
  • a first specific embodiment of the present invention uses the bellows extending between the upper and the lower mass as an intermediate element, such that, according to a useful construction, the fold connected with the handle is enclosed by a clamp that is adapted to the outer radius of the folds, to which there is connected a connecting element that participates in the movement of the handle.
  • Another very advantageous specific embodiment of the present invention consists in that the intermediate element is connected essentially fixedly with the handle, and the upper mass, as well as the lower mass, are each connected with the intermediate element so as to be capable of movement via rockers. In this way, it is not necessary to construct or to equip the bellows specially for its purpose as an intermediate element.
  • the rockers are situated on both sides of the upper mass, and the lower mass has a prolongation that extends into the area outside the upper mass, on which prolongation the rockers are mounted for the connection of the lower mass with the intermediate element.
  • This prolongation can for example be realized in the form of rods or as an apron that protects the bellows.
  • the rockers are mounted, at least at one end, via damping torsion elements.
  • a further specific embodiment according to the present invention consists in that the intermediate element is formed by double-acting struts that are connected with the handle, the guide housing of said struts being attached on the upper mass, while two guide rods that can be moved relative to one another and to the guide housing are connected one under the other and with the guide housing by springs that are arranged in series and that simultaneously act as tension and compression springs, the one guide rod being connected with the handle while the other guide rod is connected with the lower mass.
  • FIG. 1 shows a side view of a first specific embodiment of a stamper constructed according to the present invention
  • FIG. 2 shows a side view of a second specific embodiment of a stamper constructed according to the present invention
  • FIG. 3 shows a side view of a third specific embodiment of a stamper constructed according to the present invention
  • FIG. 4 shows a side view of a fourth specific embodiment of a stamper constructed according to the present invention.
  • FIG. 5 shows a section through the arrangement of the strut shown in FIG. 4.
  • the depicted stampers include three essential assemblies: an upper mass 10 , containing the drive in a known manner, a lower mass 12 , guided so as to be capable of movement relative to upper mass 10 and capable of up-and-down movement in opposite directions, and a handle 14 used to guide the apparatus.
  • Handle 14 carries a fuel tank 16 for supplying energy to the drive motor, which forms a component of upper mass 10 . Moreover, handle 14 can be provided with a cover 18 and with a crane clip (not shown) for transporting the apparatus to a construction site. The drive connection between upper mass 10 and lower mass 12 takes place via a gear mechanism.
  • bellows 20 that is fastened to upper mass 10 by a clamp 22 and to lower mass 12 by a clamp 24 .
  • bellows 20 has four folds.
  • the stamper guided via handle 14 , can execute a movement essentially parallel to the soil surface, so that the direction of movement runs parallel to the plane of the drawing.
  • the second fold from the top is the area of the apparatus at which the least movement occurs, relative to the ground on which the apparatus is supported and on which the person guiding the stamper via the handle is standing. For this reason, in the effort to transmit as little oscillation as possible to the hand and arm of the operator, in the stamper shown in FIGS. 1 and 2 the handle 14 is connected with the stamping assembly, made up of upper mass 10 and lower mass 12 , in the area of the second fold (seen from above) 26 of bellows 20 .
  • a clamp 28 that surrounds bellows 20 externally is attached in the area of second fold 26 .
  • guide rods 30 are situated at both sides of the apparatus, which serve to transmit the guide forces exerted on handle 14 by the operator to the apparatus as a whole, said rods running in the direction of the stamping movement between upper mass 10 and lower mass 12 , and being fastened on the one hand to clamp 28 and on the other hand to handle 14 .
  • Guide rods 30 are guided in the direction of the stamping movement by a guide 32 attached to upper mass 10 .
  • the guide can also be provided on lower mass 12 , or on the upper and the lower mass.
  • a plain bearing, a thrust ball bearing or a ball-type nipple, or also an elastic guide rod, can be used as a guide 32 .
  • guide rods 30 are connected with handle 14 via connecting sleeves 34 having elastic intermediate elements 36 , in order to dampen fine oscillations.
  • the assembly consisting of handle 14 , fuel tank 16 , cover 18 , and guide rods 30 is constructed with as light a weight as possible.
  • second fold 26 and the adjacent circumferential folds of bellows 20 is enlarged to twice the usual distance, as can be seen between the third and fourth fold from the top.
  • rigidity of second fold 26 which accommodates clamp 28 and the load supported on this clamp, is designed to be somewhat more stable than is the case for the other movable folds.
  • a corresponding effect can also be achieved by using a support or guide ring made of plastic having good gliding properties, provided on the inside in the area of second fold 26 .
  • a support or guide ring made of plastic having good gliding properties, provided on the inside in the area of second fold 26 .
  • Such a ring can prevent the collapsing of fold 26 , but can also prevent wearing of the inner fold at the guide cylinder between the upper and the lower mass, for which purpose the ring (not shown) is placed in bellows 20 .
  • fold 26 can consist of a circumferential bulge having a corresponding undercut, on which the fold is squeezed with a type of bellows protector, made e.g. of wear-resistant plastic, and on which handle 14 , with its load, is accommodated by means of a linkage made of tubes or of spring band steel.
  • a type of bellows protector made e.g. of wear-resistant plastic
  • FIG. 2 shows a variant in which guide 32 (shown in FIG. 1) of guide rods 30 on upper mass 10 is replaced by a torsion collar 38 having a rocker 40 that is mounted therein and that extends to guide rod 30 , so that the torsion forces that occur when rocker 40 is pivoted additionally dampen the oscillations transmitted via guide rods 30 .
  • guide rods 30 which are connected with handle 14 in the manner already described and are guided in guides 32 , are not connected with bellows 20 , but rather are coupled, via two rocker pairs 42 and 44 , with upper mass 10 on the one hand and with lower mass 12 on the other hand.
  • rocker pairs 42 and 44 are situated on both sides of the upper mass, for which reason lower mass 12 has a prolongation 66 that is guided into the area outside upper mass 10 .
  • These can be, as shown, rods; however, the prolongation can also for example also be formed by an apron that covers bellows 20 in protective fashion.
  • rocker pairs 42 and 44 can be mounted on upper mass 10 or lower mass 12 in torsion elements 46 and 48 having different hardnesses, in order to compensate the different paths. Alternatively, rockers of different lengths can also be used.
  • rocker pairs 42 and 44 and guide rods 30 can take place via simple pivot points 50 or 52 , or likewise via torsion elements.
  • first phase of movement when lower mass 12 moves upward and upper mass 10 moves downward, handle 14 is hardly loaded, and will therefore move very little.
  • second phase of movement when lower mass 12 strikes the ground, upper mass 10 is forced to move upward, so that the forces are again canceled, and handle 14 likewise undergoes very little loading and very little movement.
  • FIGS. 4 and 5 show a variant, in which instead of the damping rocker pairs 42 and 44 with associated torsion elements 46 and 48 , and, if warranted, 50 or 52 , a pair of double-acting struts 54 is provided.
  • a guide housing 56 of strut 54 here contains two spring plates 58 and 60 .
  • Spring plate 58 is connected with a first guide rod 62 that protrudes upward from one end of housing 56
  • second spring plate 60 is connected with a second guide rod 64 that protrudes downward.
  • first spring plate 58 and the upper end of housing 56 there is situated a first spring 68 that acts as a tension and compression spring, while a second spring 70 of this sort is situated between first spring plate 58 and second spring plate 60 .
  • Guide housing 56 is connected with upper mass 10 , first guide rod 62 is connected with handle 14 , and second guide rod 64 is connected with lower mass 12 , so that the forces acting opposite one another compensate one another during the movements in opposite directions of lower and upper mass 10 , 12 in the area of struts 54 , and remaining oscillations are kept away from handle 14 by the damping effect of springs 68 and 70 .

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  • 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)
US10/485,717 2001-07-31 2002-07-26 Stamper comprising a low-oscillation guiding handle Abandoned US20040234337A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10137337.6 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
US20040234337A1 true US20040234337A1 (en) 2004-11-25

Family

ID=7693753

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/485,717 Abandoned US20040234337A1 (en) 2001-07-31 2002-07-26 Stamper comprising a low-oscillation guiding handle

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)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100296869A1 (en) * 2008-01-24 2010-11-25 Catanzarite David M Powered construction ground compactor and method of making
US20110091279A1 (en) * 2009-04-09 2011-04-21 Bomag Gmbh Soil Compaction Machine with Internal Combustion Engine and Improved Air Supply
US20120076583A1 (en) * 2010-09-23 2012-03-29 Bomag Gmbh vibration tamper for compacting subsoil
WO2022184697A1 (fr) * 2021-03-01 2022-09-09 Black & Decker Inc. Outil électrique de compactage

Families Citing this family (3)

* 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
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

Citations (5)

* 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
US3847498A (en) * 1972-01-13 1974-11-12 G Grane Compacting device
US6327923B1 (en) * 1997-04-09 2001-12-11 Wacker-Werke Gmbh & Co. Kg Working tool, in particular soil rammer or hammer
US6352004B1 (en) * 1997-09-10 2002-03-05 Wacker-Werke Gmbh & Co. Kg Working device with mass balancing at the crank mechanism
US6443651B1 (en) * 1998-07-10 2002-09-03 Wacker-Werke Gmbh & Co. Kg Ramming device comprising a vibration reducing guide cylinder

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4433243A1 (de) * 1994-09-19 1996-03-28 Diehl Remscheid Gmbh & Co Führungsrahmen mit Handführung für Verdichter

Patent Citations (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
US3847498A (en) * 1972-01-13 1974-11-12 G Grane Compacting device
US6327923B1 (en) * 1997-04-09 2001-12-11 Wacker-Werke Gmbh & Co. Kg Working tool, in particular soil rammer or hammer
US6601465B2 (en) * 1997-04-09 2003-08-05 Wacker Construction Equipment Ag Working tool, in particular rammer for soil compaction
US6352004B1 (en) * 1997-09-10 2002-03-05 Wacker-Werke Gmbh & Co. Kg Working device with mass balancing at the crank mechanism
US6443651B1 (en) * 1998-07-10 2002-09-03 Wacker-Werke Gmbh & Co. Kg Ramming device comprising a vibration reducing guide cylinder

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100296869A1 (en) * 2008-01-24 2010-11-25 Catanzarite David M Powered construction ground compactor and method of making
US20110091279A1 (en) * 2009-04-09 2011-04-21 Bomag Gmbh Soil Compaction Machine with Internal Combustion Engine and Improved Air Supply
US20120076583A1 (en) * 2010-09-23 2012-03-29 Bomag Gmbh vibration tamper for compacting subsoil
US8491222B2 (en) * 2010-09-23 2013-07-23 Bomag Gmbh Vibration tamper for compacting subsoil
WO2022184697A1 (fr) * 2021-03-01 2022-09-09 Black & Decker Inc. Outil électrique de compactage

Also Published As

Publication number Publication date
JP2004537662A (ja) 2004-12-16
DE10137337A1 (de) 2003-04-03
EP1412581A1 (fr) 2004-04-28
WO2003012205A1 (fr) 2003-02-13
WO2003012205B1 (fr) 2003-04-03

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Legal Events

Date Code Title Description
AS Assignment

Owner name: WACKER CONSTRUCTION EQUIPMENT AG, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BURKERT, DIRK;GREPPMAIR, MARTIN;REEL/FRAME:015657/0128;SIGNING DATES FROM 20040110 TO 20040120

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION