US3492924A - Vibrating tamping device - Google Patents

Vibrating tamping device Download PDF

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Publication number
US3492924A
US3492924A US745561A US3492924DA US3492924A US 3492924 A US3492924 A US 3492924A US 745561 A US745561 A US 745561A US 3492924D A US3492924D A US 3492924DA US 3492924 A US3492924 A US 3492924A
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US
United States
Prior art keywords
compacting
unit
motor unit
arm
tamping
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.)
Expired - Lifetime
Application number
US745561A
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English (en)
Inventor
Torsten Fors
Eskil Tuneblom
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.)
Dynapac AB
Original Assignee
Dynapac AB
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 Dynapac AB filed Critical Dynapac AB
Application granted granted Critical
Publication of US3492924A publication Critical patent/US3492924A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E02D3/068—Vibrating apparatus operating with systems involving reciprocating masses

Definitions

  • a reciprocating rod that extends from the motor unit drives and vibrates the compacting unit, and the linkage system movably connects the two units in such manner that movements produced by irregularities in the surface being compacted can be effectively absorbed by the linkage without the need for an additional guide structure between the units.
  • the present invention relates to tamping apparatus for compacting earth, concrete, asphalt and other materlals which can be compacted and in which vibratory or tamping movements, in addition to compacting the material, also move the apparatus forwardly.
  • Vibratory tamping machines which provide substantially vertical tamping movements have, in the past, in cluded motor units and compacting units coupled by guide structures such as pistons and cylinders.
  • guide structures such as pistons and cylinders.
  • Such guide structures while functioning to maintain the two units in proper relation one to the other, were subject to excessive wear even when provided with an effective lubrication system. Further, it was necessary to preclude the entrance of dust and dirt into the guide surfaces by bellows or other sealing devices which complicated the tamping device.
  • the present invention overcomes the above enumerated disadvantages of tamping machines by providing a linkage system movably connecting the motor unit and compacting unit together without the need for wear-sensitive guide structures requiring lubrication and protection from dirt and dust.
  • a simple reciprocating rod extending from the motor unit is coupled to and drives the compacting unit.
  • the linkage system connecting the motor unit to the compacting unit includes a first arm extending outwardly in one direction from the motor unit over the compacting unit and a second arm extending outwardly in the other direction from the compacting unit under the motor unit.
  • Links respectively join the first arm pivotally to the compacting unit and the second arm pivotally to the motor unit, and the linkage system is arranged to provide as great a distance as possible between the pivot points on the motor unit and compacting unit to enable the linkage system to compensate for and absorb movements due to irregularities in the surface being compacted and yet facilitate driving of the compacting unit by the reciprocating rod.
  • the tamping device is of such size that it can be operated by one man and the substantially vertical tamping or vibrating movement is imparted to the compacting unit by a crank mechanism incorporated in a drive motor in the motor unit.
  • the mass of the two units is selected so that the motor unit moves only slightly in the vertical direction during the tamping or vibrating movement of the compacting unit and the angular relationship of the two units 3,492,924 Patented Feb. 3, 1970 is such that the tamping device is caused to move forward by the vibratory motion.
  • FIGURE 1 is an elevation of a vibratory tamping device embodying the principles of the present invention.
  • FIGURE 2 is a cross-section of the tamping device taken along the line 22 of FIGURE 1 looking in the direction of the arrows.
  • an inclined motor unit 1 is located above and slightly forward of a compacting unit 2.
  • a compactor shoe 3 positioned on the lower portion of the compacting unit has upturned forward and rearward edges and is designed to resist wear while compacting earth, concrete, asphalt and similar materials.
  • the motor unit 1 includes a drive motor 4, which may be a gasoline or diesel engine, and which, through a crank-type mechanism, imparts to a reciprocable rod 5 a substantially vertical reciprocating movement.
  • a drive motor 4 which may be a gasoline or diesel engine, and which, through a crank-type mechanism, imparts to a reciprocable rod 5 a substantially vertical reciprocating movement.
  • the rod 5 is connected resiliently to the compacting unit by coil springs 6a and 6b which bear against a plate 5a on the lower end of the rod.
  • a tubular casing 7 enclosing the springs 6a and 6b is secured at its lower end to the compactor shoe 3 and includes adjacent its upper end an annular plate 7a including an opening 7b through which the rod 5 passes.
  • a linkage system is provided between the two units which includes a pair of links 8 pivoted on pins 12 mounted on the casing 7 and a pair of links 9 pivoted on pins 14 mounted on the motor unit 1.
  • the pins 12 and 14 are resiliently mounted, for example, by the use of shear stressed rubber elements (not shown).
  • arms 10 and 11 respectively fastened to and extending from the motor unit 1 and the compacting unit 2.
  • the arm 10 extends rearwardly and downwardly over the compacting unit 2.
  • the arm 10 is formed with a C-shaped crosssection, as shown in FIGURE 2, and is secured to opposite sides of the motor unit 1.
  • the arm 10 carries a pair of pivot pins 13 upon which the links 8 pivot.
  • the arm 11 extends forwardly and upwardly under the motor unit l'and carries pins 15 at its free end upon which the links 9 are pivoted.
  • the arm 11 may also be formed with a C-shaped cross-section and fastened to opposite sides of the casing 7 on the compacting unit 2.
  • a frame 16 suitably mounted on and fastened to the motor unit 1 includes a pair of hand grips 17 and supports a tank 18 holding fuel for the motor 4.
  • special resilient attachment structures 19 couple the hand grip 17 to the frame 16.
  • the motor 4 is started in the conventional manner to inititate reciprocating movement of the rod 5.
  • the operator then merely guides the direction of the tamping apparatus which, because of the inclined mounting of the motor unit 1 over the compacting unit 2, moves forwardly while vertical compacting forces are applied to the surface on which the compactor shoe 3 rests.
  • Displacement of the compacting unit 2 with respect to the motor unit 1 by irregularities in the surface along which the compactor shoe 3 travels are efiectively taken up by the linkage system due to the relatively large distance'between' the pivot points 12 and 14 on the compacting unit and motor unit, respectively.
  • a compacting device comprising a motor unit, a rod reciprocated substantially vertically 'by the motor unit, a driven compacting unit including means coupled to the rod, and linkage means for mounting the motor unit over the compacting unit including a first arm extending outwardly in one direction from the motor unit over the compacting unit, first link means pivotally connecting the 4 first arm to the motor unit, a second arm extending outwardly in the other direction from the compacting unit under the motor unit, and second link means pivotally connecting the second arm to the motor unit, so that the motor unit and compacting unit are movably connected together.
  • first link means comprises a pair of links extending from the first arm to opposite sides of the compacting unit and the second link means comprises a pair of links extending from the second arm to opposite sides of the motor unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
US745561A 1967-07-19 1968-07-17 Vibrating tamping device Expired - Lifetime US3492924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1069867 1967-07-19

Publications (1)

Publication Number Publication Date
US3492924A true US3492924A (en) 1970-02-03

Family

ID=20292714

Family Applications (1)

Application Number Title Priority Date Filing Date
US745561A Expired - Lifetime US3492924A (en) 1967-07-19 1968-07-17 Vibrating tamping device

Country Status (15)

Country Link
US (1) US3492924A (de)
AT (1) AT288473B (de)
BE (1) BE718341A (de)
BR (1) BR6800573D0 (de)
CH (1) CH497608A (de)
DE (1) DE1784135C3 (de)
DK (1) DK127752B (de)
ES (1) ES356125A1 (de)
FR (1) FR1571018A (de)
GB (1) GB1239628A (de)
IL (1) IL30196A (de)
MY (1) MY7300078A (de)
NL (1) NL140309B (de)
NO (1) NO125005B (de)
YU (1) YU31448B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802791A (en) * 1970-11-25 1974-04-09 Wacker Werke Kg Tamping device for compacting soil, concrete, and the like
US4015909A (en) * 1976-01-24 1977-04-05 Shinzo Yamamoto Tamping machine
US6302622B1 (en) * 1999-03-26 2001-10-16 Mikasa Sangyo Co., Ltd. Tamping rammer
US20080298893A1 (en) * 2005-12-07 2008-12-04 Wacker Construction Equipment Ag Vibration Plate with Stabilizing Device
US20160032548A1 (en) * 2014-07-31 2016-02-04 Wacker Neuson Produktion GmbH & Co. KG Soil Compacting Device Having Spring Suspension and Guiding
CN108708363A (zh) * 2018-05-29 2018-10-26 刘辉辉 一种往复式建筑夯实装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017810A (en) * 1957-12-13 1962-01-23 Stan E Jacklin Tamping device
US3109354A (en) * 1961-01-03 1963-11-05 Jay Corp Tamping device
US3308729A (en) * 1963-08-02 1967-03-14 Hermann Wacker And Peter Wacke Reciprocating system for manually guided motor driven working device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3017810A (en) * 1957-12-13 1962-01-23 Stan E Jacklin Tamping device
US3109354A (en) * 1961-01-03 1963-11-05 Jay Corp Tamping device
US3308729A (en) * 1963-08-02 1967-03-14 Hermann Wacker And Peter Wacke Reciprocating system for manually guided motor driven working device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3802791A (en) * 1970-11-25 1974-04-09 Wacker Werke Kg Tamping device for compacting soil, concrete, and the like
US4015909A (en) * 1976-01-24 1977-04-05 Shinzo Yamamoto Tamping machine
US6302622B1 (en) * 1999-03-26 2001-10-16 Mikasa Sangyo Co., Ltd. Tamping rammer
US20080298893A1 (en) * 2005-12-07 2008-12-04 Wacker Construction Equipment Ag Vibration Plate with Stabilizing Device
US20160032548A1 (en) * 2014-07-31 2016-02-04 Wacker Neuson Produktion GmbH & Co. KG Soil Compacting Device Having Spring Suspension and Guiding
US9695566B2 (en) * 2014-07-31 2017-07-04 Wacker Neuson Produktion GmbH & Co. KG Soil compacting device having spring suspension and guiding
CN108708363A (zh) * 2018-05-29 2018-10-26 刘辉辉 一种往复式建筑夯实装置
CN108708363B (zh) * 2018-05-29 2020-12-15 临沂边锋自动化设备有限公司 一种往复式建筑夯实装置

Also Published As

Publication number Publication date
YU31448B (en) 1973-06-30
IL30196A0 (en) 1968-08-22
MY7300078A (en) 1973-12-31
DE1784135A1 (de) 1971-10-14
NL6810262A (de) 1969-01-21
FR1571018A (de) 1969-06-13
DK127752B (da) 1973-12-31
BE718341A (de) 1968-12-31
BR6800573D0 (pt) 1973-02-20
NO125005B (de) 1972-07-03
AT288473B (de) 1971-03-10
DE1784135C3 (de) 1980-04-17
CH497608A (fr) 1970-10-15
NL140309B (nl) 1973-11-15
GB1239628A (de) 1971-07-21
DE1784135B2 (de) 1977-06-16
ES356125A1 (es) 1970-01-01
IL30196A (en) 1972-03-28

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