WO2003012205A1 - Stampfer mit schwingungsarmem führungsbügel - Google Patents
Stampfer mit schwingungsarmem führungsbügel Download PDFInfo
- Publication number
- WO2003012205A1 WO2003012205A1 PCT/EP2002/008346 EP0208346W WO03012205A1 WO 2003012205 A1 WO2003012205 A1 WO 2003012205A1 EP 0208346 W EP0208346 W EP 0208346W WO 03012205 A1 WO03012205 A1 WO 03012205A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- handle
- ramming device
- mass
- upper mass
- intermediate member
- Prior art date
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)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Architecture (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Road Paving Machines (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/485,717 US20040234337A1 (en) | 2001-07-31 | 2002-07-26 | Stamper comprising a low-oscillation guiding handle |
JP2003517372A JP2004537662A (ja) | 2001-07-31 | 2002-07-26 | 振動の少ない操作案内ハンドルを備えた締固め機 |
EP02762402A EP1412581A1 (de) | 2001-07-31 | 2002-07-26 | Stampfer mit schwingungsarmem führungsbügel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10137337A DE10137337A1 (de) | 2001-07-31 | 2001-07-31 | Stampfer mit schwingungsarmem Führungbügel |
DE10137337.6 | 2001-07-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2003012205A1 true WO2003012205A1 (de) | 2003-02-13 |
WO2003012205B1 WO2003012205B1 (de) | 2003-04-03 |
Family
ID=7693753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/008346 WO2003012205A1 (de) | 2001-07-31 | 2002-07-26 | Stampfer mit schwingungsarmem führungsbügel |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040234337A1 (de) |
EP (1) | EP1412581A1 (de) |
JP (1) | JP2004537662A (de) |
DE (1) | DE10137337A1 (de) |
WO (1) | WO2003012205A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009017209A1 (de) | 2009-04-09 | 2010-11-04 | Bomag Gmbh | Bodenverdichtungsmaschine mit Verbrennungsmotor und verbesserter Luftzuführung |
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 |
Families Citing this family (4)
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 |
WO2009094617A1 (en) * | 2008-01-24 | 2009-07-30 | Lord Corporation | Powered construction ground compactor and method of making |
DE102010046401A1 (de) * | 2010-09-23 | 2012-01-19 | Bomag Gmbh | Arbeitsgerät zur Verdichtung eines Untergrundes |
GB2604347A (en) * | 2021-03-01 | 2022-09-07 | Black & Decker Inc | A compacting power tool |
Citations (3)
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 |
DE4433243A1 (de) * | 1994-09-19 | 1996-03-28 | Diehl Remscheid Gmbh & Co | Führungsrahmen mit Handführung für Verdichter |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
-
2001
- 2001-07-31 DE DE10137337A patent/DE10137337A1/de not_active Withdrawn
-
2002
- 2002-07-26 US US10/485,717 patent/US20040234337A1/en not_active Abandoned
- 2002-07-26 EP EP02762402A patent/EP1412581A1/de not_active Withdrawn
- 2002-07-26 JP JP2003517372A patent/JP2004537662A/ja active Pending
- 2002-07-26 WO PCT/EP2002/008346 patent/WO2003012205A1/de not_active Application Discontinuation
Patent Citations (3)
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 |
DE4433243A1 (de) * | 1994-09-19 | 1996-03-28 | Diehl Remscheid Gmbh & Co | Führungsrahmen mit Handführung für Verdichter |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009017209A1 (de) | 2009-04-09 | 2010-11-04 | Bomag Gmbh | Bodenverdichtungsmaschine mit Verbrennungsmotor und verbesserter Luftzuführung |
DE102009017209B4 (de) * | 2009-04-09 | 2011-05-05 | Bomag Gmbh | Bodenverdichtungsmaschine mit Verbrennungsmotor und verbesserter Luftzuführung |
DE102014011179A1 (de) * | 2014-07-31 | 2016-02-04 | Wacker Neuson Produktion GmbH & Co. KG | Bodenverdichtungsvorrichtung mit Abfederung und Führung |
US9695566B2 (en) | 2014-07-31 | 2017-07-04 | Wacker Neuson Produktion GmbH & Co. KG | Soil compacting device having spring suspension and guiding |
DE102016105950A1 (de) * | 2016-03-31 | 2017-10-05 | Wacker Neuson Produktion GmbH & Co. KG | Bodenverdichtungsvorrichtung mit entkoppeltem Führungshandgriff |
Also Published As
Publication number | Publication date |
---|---|
US20040234337A1 (en) | 2004-11-25 |
EP1412581A1 (de) | 2004-04-28 |
WO2003012205B1 (de) | 2003-04-03 |
JP2004537662A (ja) | 2004-12-16 |
DE10137337A1 (de) | 2003-04-03 |
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