EP0703320A2 - Cadre de guidage manuel pour compacteur - Google Patents

Cadre de guidage manuel pour compacteur Download PDF

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Publication number
EP0703320A2
EP0703320A2 EP95114091A EP95114091A EP0703320A2 EP 0703320 A2 EP0703320 A2 EP 0703320A2 EP 95114091 A EP95114091 A EP 95114091A EP 95114091 A EP95114091 A EP 95114091A EP 0703320 A2 EP0703320 A2 EP 0703320A2
Authority
EP
European Patent Office
Prior art keywords
elastomer
bearing
vibrating
guide frame
guide
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.)
Ceased
Application number
EP95114091A
Other languages
German (de)
English (en)
Other versions
EP0703320A3 (fr
Inventor
Wolfgang Hoffmann
Karl-Heinz Pepping
Franz-Hubert Hausmann
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.)
Diehl Remscheid GmbH and Co KG
Original Assignee
Diehl Remscheid GmbH and Co KG
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
Priority claimed from DE19944433243 external-priority patent/DE4433243A1/de
Priority claimed from DE1995111738 external-priority patent/DE19511738A1/de
Application filed by Diehl Remscheid GmbH and Co KG filed Critical Diehl Remscheid GmbH and Co KG
Publication of EP0703320A2 publication Critical patent/EP0703320A2/fr
Publication of EP0703320A3 publication Critical patent/EP0703320A3/fr
Ceased 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/006—Vibration damping means
    • 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 guide frame with manual guidance for compressors according to the preamble of claim 1.
  • the object of the invention is to minimize vibration loads on the hand-arm system in hand-operated machines to a size which is not a health hazard.
  • the invention can be carried out in a simple, constructive and cost-effective manner.
  • Conventional guide frames are supplemented by a special hand guide. After this manual guidance is rotatably mounted in the virtual pivot point of the guide frame, only non-critical vibrations are released by one Operator perceived on the hand guide. This enables a significantly longer service life for compressors.
  • the bearing according to claims 6-18 consists of a few and simple parts and has essentially three parts which can be plugged into one another and are connected to one another. This makes the mounting of the bearing simple and quick.
  • the bearing is extremely flexible in a wide range around the zero point. With increasing twisting, however, the strong, progressive, rubberized end stops come into operation (see diagram). With extreme loads, the torsion angle is limited by the positive locking of the bearing core and housing.
  • the special design of the bearing ensures that all torsion angles are damped in a rubber-specific manner.
  • a guide frame 1 is connected to a compressor 3 via elastomer bearings 2.
  • the guide frame 1 has a bracket 4 for stiffening. Furthermore, the guide frame 1 has struts 5 and a strut 38.
  • a separate manual guide 10 is rotatably mounted on the struts 5 via vibrating elastomer bearings 11, see also FIG. 2.
  • Tabs 12 are welded to the struts 5.
  • the vibrating elastomer bearing 11 is connected via screw connections 13 both to the manual guide 10 and to the bracket 12.
  • the vibrating elastomer bearing 11 has vulcanized nuts 14.
  • the elastic mounting by means of the vibrating elastomer bearing 11 allows damped rotary movements in the direction of arrow 15 with respect to an axis 16 between the hand guide 10 and the guide frame 1.
  • the axis 16 extends through a virtual pivot point 20. This pivot point 20 lies within the area of the tabs 12.
  • the vibrating elastomer bearing 11 isolates the hand guide 10 from the guide frame 1 against disturbing residual vibrations.
  • the guide frame 1 is excited via the elastomer bearing 2 in accordance with the vibrations 21 shown in simplified form. Due to its structural design, the guide frame 1 has an oscillation shape with a virtual pivot point 20.
  • the virtual pivot point 20 can be determined by tests and thus defines the size and the location of the tabs 12.
  • the virtual pivot point 20 is usually outside the struts 5.
  • the virtual pivot point 20 is the point on the axis 16 at which no portion remains of the vibration 21 introduced in the elastomer bearing 2. Rather, the guide frame 1 rotates virtually, ie apparently around this point. This results in a so-called vibration-decoupled connection for the elastic mounting of the hand guide 10 in the axis 16.
  • a manual guide frame 30 is provided with struts 31, 32, the tabs 12 and with the bracket 4.
  • the tab 31 is used to attach a gas tank, not shown.
  • tabs 33 serve to fasten the guide frame 30 to a compressor (not shown).
  • the guide frame 30 has struts 34, 35 which are provided with weights 36 or 37 at their free ends. These weights 36, 37 serve as a counterbalance for the connecting web 38 originally shown in dash-dotted lines.
  • a manual guide 40 is rotatably mounted in the virtual pivot point 20. This rotatable attachment is carried out according to FIG. 2 by two vibrating elastomer bearings 11.
  • the vibrating elastomer bearings 11, 75 (FIG. 10) and 101 (FIG. 5) advantageously have the effect that high-frequency vibrations of the compressor 3 are strongly damped and at the same time the steering properties required for the operation of the compressor 3 are ensured by an operator in the working directions that occur.
  • the separate manual guide 10, 40 is structurally simple and therefore inexpensive to manufacture.
  • the additional cost with respect to the hand guidance according to the prior art is low. It bears no relation to the utility of the invention.
  • the guideline value of the Eurocommission is a maximum of 20 'application time per man and day. Otherwise, acute damage to the hand nerve system of the user will occur, which can be seen particularly quickly when working in the frost area.
  • the invention solves this problem in a simple manner. It also offers protection against costly, long-term consequences of a human nature. At the same time, the quality of the work performed with the compressor increases because the stress of the 20 'time limit is eliminated.
  • a vibrating elastomer bearing 101 is attached to a guide frame 30 for a vibrating tamper, not shown, in a virtual pivot point 20 on tabs 12.
  • they each have a fastening flange 102 with bores 103.
  • the fastening flange 102 is firmly connected to a steel cage 104.
  • An elastomer body 105 is arranged within the cage 104 and connected to it in a form-fitting manner, but can be rotated radially about the Y axis.
  • the elastomer body 105 (FIGS. 2, 5) has a central recess 110 in the Y-axis, which has an hourglass-shaped cross section 111.
  • the recess 110 is in the Z axis by mutually opposite Wave crests 41 and wave troughs 42 and delimited in the X-axis by flat end faces 43.
  • the thickness of the side walls, the wall sections at the wave troughs 42 and the thickness of the wave crests 41 are denoted by 44 to 46.
  • the face of the elastomer body 105 has chamfered surfaces 48 along its shaft contour 47.
  • Pins 49 are provided in one piece with the elastomer body in the maximum of the wave crests 41.
  • the pins 49 engage on both sides of a metallic bearing core 50 in a form-fitting manner in corresponding through bores 51.
  • the bearing core 50 made of steel is designed as a flat cuboid and has only fastening means 53 in the form of threaded bores on its end face 52.
  • the elastomer body 105 holds the bearing body 50 in the unloaded state in a neutral position according to FIGS. 5 and 6.
  • the wave crests 41 are in the middle of a preload against a contact strip 55 indicated in FIG. 7 on the two flat rolling surfaces 56 of the bearing core 50.
  • the bearing core 50 passes through the elastomer body 105 in the direction of the Y axis to a distance from the floor 57 and, on the other hand, projects beyond the elastomer body 105 by a distance 58.
  • the bearing core 50 is able to swing freely, on the other hand, the distance 58 enables a manual guide 10 (FIG. 1), 40 (FIG. 4) to be easily attached.
  • the freely swingable ends 59 of the bearing core 50 protrude into free spaces 60 which are formed by distances 63 from the walls 44.1 and by the troughs 42 of the elastomer body 105. In the Z axis there are free spaces in the form of gussets 61 between the feet 62 of the wave crests 41 and the bearing core 50.
  • the vibration elastomer bearing 101 is assembled by first inserting the elastomer body 105 into the cuboid opening 6 of the cage 104 up to the stop on the flange 102. Then the bearing core 50 inserted into the recess 110 of the elastomer body 105, the bearing core 50 being fixed in the elastomer body 105 by snapping the pins 49 into the bores 51.
  • two elastomer bearings 101 are each fastened to a bracket 12, specifically at the virtual pivot point 20 via the flanges 102 in a known manner via the threaded holes 3.1 of the bracket 12.
  • Axis 16 corresponds to the Y axis (FIG. 5).
  • the virtual fulcrum 20 is the point on the axis 16 at which no portion remains of the vibration 21 (FIG. 1) initiated by a vibration exciter in the vibration elastomer bearing 11, 75, 101. Rather, the guide frame 30 rotates virtually. H. apparently around this virtual pivot point 20. This results in a so-called vibration-decoupled connection for the elastic mounting of the hand guide 40 in the axis 16.
  • the hand guide 40 is then fastened to the bearing cores 50 of the two vibrating elastomer bearings 101 arranged opposite one another by screwing the side struts 22 to one another via the two threaded bores (fastening means 53) and screws, not shown.
  • the hand guide 40 thus serves as a spacer for the two, opposite bearing cores 50.
  • the bearing core 50 overcomes the respective distance 63 during load peaks and lies against the wall 44.1.
  • the wall 44.1 then dampens the bearing core 50. The same applies correspondingly when the vibrator is rotated about the Z axis.
  • the elastomer body 105 in the cage 104 must be secured against slipping out in the direction of the Y axis. This can be done by Form-locking means, such as rubber knobs, which engage in bores in the cage 104. On the other hand, the elastomer body 105 can also be firmly connected to the cage 104 by vulcanization.
  • the spring identification 69 of the vibrating elastomer bearing 101 can be seen.
  • the torsion angles are plotted on the X axis and the torques on the Y axis.
  • the bearing 101 can be pivoted relatively freely around the zero point 70, that is to say it can rotate.
  • the very flat spring detection around the zero point 70 is essential, because there the guide frame 30 swings and the bearing core 50 rolls on the wave crests 41. With increasing rotation, the torque increases and thus also the damping, because contact with the compressor 3 is necessary in the stop area 59, 62. Rubber mixtures for the elastomer body 105 between 40 and 80 Shore were used.
  • An optimal bearing 101 was 45 Shore with a relatively soft guidance but a very good isolation of vibrations.
  • a vibrating elastomer bearing 75 has a bearing core 76 with a flat, egg-shaped cross section 77.
  • the recess 78 of an elastomer body 79 has a rectangular cross section 80.
  • the other features correspond to the bearing 101 Elastomer body 79 with prestress on the bearing core 76 made of steel. Because of the damping sections 81 of the same thickness, the vibrating elastomer bearing 75 does not dampen as comfortably as the vibrating elastomer bearing 101.
  • the vibrating elastomer bearing 75 or 101 is very versatile. It is also suitable for storing vibration exciters on foundations for the purpose of vibration isolation.

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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)
  • Mechanical Engineering (AREA)
  • Vibration Prevention Devices (AREA)
EP95114091A 1994-09-19 1995-09-08 Cadre de guidage manuel pour compacteur Ceased EP0703320A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4433243 1994-09-19
DE19944433243 DE4433243A1 (de) 1994-09-19 1994-09-19 Führungsrahmen mit Handführung für Verdichter
DE19511738 1995-03-31
DE1995111738 DE19511738A1 (de) 1995-03-31 1995-03-31 Schwingelastomerlager

Publications (2)

Publication Number Publication Date
EP0703320A2 true EP0703320A2 (fr) 1996-03-27
EP0703320A3 EP0703320A3 (fr) 1996-10-16

Family

ID=25940235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95114091A Ceased EP0703320A3 (fr) 1994-09-19 1995-09-08 Cadre de guidage manuel pour compacteur

Country Status (1)

Country Link
EP (1) EP0703320A3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1127983A3 (fr) * 2000-02-21 2003-10-29 Ammann Verdichtung GmbH Plaque vibrante
GB2386858B (en) * 2002-03-18 2006-08-02 Mbw Inc Vibration isolation for a percussion rammer
GB2435847A (en) * 2006-03-09 2007-09-12 Dynapac Compaction Equip Ab Vibration dampened handle for a vibratory plate compacting tool
US8128319B2 (en) 2008-07-29 2012-03-06 Geopier Foundation Company, Inc. Shielded tamper and method of use for making aggregate columns
US8562258B2 (en) 2008-07-29 2013-10-22 Geopier Foundation Company, Inc. Shielded tamper and method of use for making aggregate columns
CN116927040A (zh) * 2023-09-15 2023-10-24 中铁吉林投资建设有限公司 一种环保型修路夯实装置

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2241692B2 (fr) 1971-08-27 1979-05-10 Koehring Co., Milwaukee, Wis. (V.St.A.)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2737094A (en) * 1951-08-14 1956-03-06 Jackson Vibrators Compactor for asphaltic and other materials
BE654553A (fr) * 1963-10-19
DE1914588U (de) * 1965-01-16 1965-04-22 Losenhausenwerk Duesseldorfer Bodenverdichter.
US3416417A (en) * 1966-08-01 1968-12-17 Racine Hydraulics & Machinery Vibratory compactor
JPS5834271B2 (ja) * 1980-07-18 1983-07-26 日立工機株式会社 振動工具のハンドル防振装置
SE8107226L (sv) * 1981-01-28 1982-07-29 Byggergonomilaboratoriet Hb Vibrationsdempande anordning
JPS5946751B2 (ja) * 1982-02-13 1984-11-14 株式会社エムエス技研 防振ハンドル装置
NO842127L (no) * 1983-06-01 1984-12-03 Trelleborg Ab Anordning ved haandtak for vibrerende maskiner
US5054562A (en) * 1990-05-02 1991-10-08 Honsa Ergonomic Technologies, Inc. Vibration-isolated power tool
SE465960B (sv) * 1990-05-04 1991-11-25 Atlas Copco Tools Ab Vibrationsdaempad handhaallen rotationsslipmaskin

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2241692B2 (fr) 1971-08-27 1979-05-10 Koehring Co., Milwaukee, Wis. (V.St.A.)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1127983A3 (fr) * 2000-02-21 2003-10-29 Ammann Verdichtung GmbH Plaque vibrante
GB2386858B (en) * 2002-03-18 2006-08-02 Mbw Inc Vibration isolation for a percussion rammer
GB2435847A (en) * 2006-03-09 2007-09-12 Dynapac Compaction Equip Ab Vibration dampened handle for a vibratory plate compacting tool
GB2435847B (en) * 2006-03-09 2011-03-09 Dynapac Compaction Equipment Ab Vibration-relieved handle
US8128319B2 (en) 2008-07-29 2012-03-06 Geopier Foundation Company, Inc. Shielded tamper and method of use for making aggregate columns
US8562258B2 (en) 2008-07-29 2013-10-22 Geopier Foundation Company, Inc. Shielded tamper and method of use for making aggregate columns
CN116927040A (zh) * 2023-09-15 2023-10-24 中铁吉林投资建设有限公司 一种环保型修路夯实装置
CN116927040B (zh) * 2023-09-15 2023-12-19 中铁吉林投资建设有限公司 一种环保型修路夯实装置

Also Published As

Publication number Publication date
EP0703320A3 (fr) 1996-10-16

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