US3270635A - Manually guided, motor driven tamping devices - Google Patents

Manually guided, motor driven tamping devices Download PDF

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Publication number
US3270635A
US3270635A US396495A US39649564A US3270635A US 3270635 A US3270635 A US 3270635A US 396495 A US396495 A US 396495A US 39649564 A US39649564 A US 39649564A US 3270635 A US3270635 A US 3270635A
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United States
Prior art keywords
cylinder
motor
sleeves
tamping
guiding cylinder
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Expired - Lifetime
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US396495A
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English (en)
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Kestel Heinrich
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Individual
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Individual
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Classifications

    • 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
    • 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

  • the invention relates to tamping devices and is particularly concerned with improvements in manually guided, motor driven tamping devices .for compacting concrete, earth or the like.
  • tamping devices where the tool effects deciprocating operating movements.
  • the drive motor is rigidly or interchangeably connected with the working tool.
  • the transmission of power from the motor to the reciprocating system is effected by way of a pinion mounted upon the motor shaft, a transmission cooperating therewith and a crank drive means.
  • the crank drive means actuates a connecting rod.
  • the connecting rod engages a cylinder which is axially movable in the housing of the apparatus.
  • a piston is slidably mounted which is supported with respect to the two end surfaces of the cylinder by means of springs.
  • the piston is interchangeably connected with the tool such as a tamping foot at the lower end of the device.
  • a further embodiment of such a tamping apparatus which corresponds to the structure described above with the difference that here a connecting rod is linked to a piston which is slidable in a cylinder.
  • This cylinder in turn is axially movable in the housing of the apparatus and is moved by the piston which is biased by means of springs against the two end walls of the cylinder.
  • the tool is connected to the cylinder.
  • All devices or apparatuses which are constructed in accordance with the above systems have in common that the springs required for the reciprocating system are arranged in a cylinder coaxially with the axis of the apparatus.
  • the magnitude of the diameter of the guiding cylinder and of the helical springs determines the manner in which the motor transmission and the tamping foot are arranged and also, therefore, the standing ability of the tamper.
  • the known apparatuses have the shortcoming that the diameter of the helical springs and the guiding cylinder cannot exceed a certain magnitude, so that narrow limits are set for the guiding qualities.
  • the motor is mounted on a support above the transmission which is arranged in a cylinder, which in turn is slidably guided in a further cylinder and is connected thereto by way of a crank, connecting rod and a wrist pin.
  • the guiding cylinder is movably connected to the tamping foot by way of a guide plate at the circumference through four guide sleeves and tour guide standards and is biased with respect to the tamping foot by means of springs toward the bottom and the top.
  • An apparatus in accordance with the invention provides essential advantages.
  • the guide standards which are widely spaced provide for reliable guidance and standing ability of a tamping device.
  • the standing ability is further improved by an extremely low form of construction where the gear transmission and the crank drive is accommodated in the cylinder inside the guiding cylinder, a space which in known devices was required for accommodating the springs for the reciprocating system. It is thus possible to equip tampers with stronger and heavier drive motors, particularly also diesel motors. This in turn means that tampers may be constructed in a manner to provide greater sealing and surface area efficiency.
  • a still further advantage is provided in that by separating the springs for the reciprocating system and providing in lieu of a separate unit four spring assemblies, one for each of the standards, finer adjustment of the springs for the reciprocating system may be obtained.
  • finer adjustment of the springs for the reciprocating system may be obtained.
  • an apparatus in accordance with the invention provides the advantage that the spring assemblies can be observed at any time, and it is readily possible to replace damaged springs.
  • FIG. 1 is a side view of a tamper, partly in section, taken along line A'BCD through the driving and reciprocating system, and
  • FIG. 2 is a section taken along line E-F of the reciprocating system.
  • a drive motor 1 is mounted upon a support 2 which is part of the housing of a transmission 3.
  • the transmission 3 is disposed in a cylinder 4 which is guided for axial displacement in a guiding cylinder 5.
  • the guiding cylinder 5 in turn is axially displaceable and slides by way of four guiding sleeves 6 which are arranged externally circumferentially of the guiding cylinder upon four guide pins or standards 7 which are rigidly connected with a tamping foot 8.
  • Guiding sleeves 6 on the guiding cylinder 5 are biased with respect to the tamping foot 8 by means of springs 9 toward the bottom and by means of springs 10 toward the top, where the springs at their upper end are secured by means of nuts 11 and spring disks 12 in a manner that the tension can be adjusted.
  • the drive of the tamper is effected from motor 1 by way of a V-belt drive 13 and a gear transmission 14 to a crank 15 onto which is linked a connecting rod 16.
  • Connecting rod 16 is linked to the bottom of the guiding cylinder 5 by means of a wrist pin 17.
  • the crank drive causes movement of the guiding cylinder 5 relative to the cylinder 4 which carries transmission 3 and the drive motor 1, and this initiates the movement of the reciprocating system.
  • Cylinder 4 and guiding cylinder 5 are secured against rotary displacement by means of pins 18. Furthermore, in order to protect the reciprocating system the tamping foot 8 is provided with an elastic element 19 which serves as a shock absorbing means and limits the path of the tamping foot with respect to the guiding cylinder 5 and thus also the compression of the springs 9.
  • a bail 20 is provided for manipulating or guiding the apparatus.
  • a manually guided, motor driven tamping device for compacting earth, concrete and the like, said device comprising a motor, a guided cylinder defining a housing, said motor being supported upon said housing, a gear transmission and a crank disposed in said housing and operatively connected to said motor, a reciprocating system comprising a guiding cylinder open at the top and slidingly receiving said guided cylinder and a connecting rod having one end linked to said crank and having its other end pivotally connected to said guiding cylinder by means of a wrist pin, a plurality of sleeves arranged circumferentially around the lower end of said guiding cylinder, a tamping foot disposed below said guiding cylinder and having a plurality of guide pins extending upwardly therefrom, one through each of said sleeves for sliding movement therein, and biasing springs associated in pairs with said guide pins, one above and one below each said sleeve, each spring of a pair having one end biased against one said sleeve, the other ends of the springs above said sleeves being biased
  • a tamping device in accordance with claim 1 comprising a plurality of pins extending between said housing and said guiding cylinder to prevent relative rotational movement.
  • a tamping device in accordance with claim 1 where means are provided externally of said housing and of said motor for operatively connecting said gear transmission to said motor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Architecture (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Road Paving Machines (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Soil Working Implements (AREA)
  • Portable Nailing Machines And Staplers (AREA)
US396495A 1963-11-15 1964-09-15 Manually guided, motor driven tamping devices Expired - Lifetime US3270635A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW35641A DE1209066B (de) 1963-11-15 1963-11-15 Von Hand gefuehrtes, motorisch getriebenes Stampfgeraet

Publications (1)

Publication Number Publication Date
US3270635A true US3270635A (en) 1966-09-06

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ID=7600967

Family Applications (1)

Application Number Title Priority Date Filing Date
US396495A Expired - Lifetime US3270635A (en) 1963-11-15 1964-09-15 Manually guided, motor driven tamping devices

Country Status (3)

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US (1) US3270635A (de)
DE (1) DE1209066B (de)
GB (1) GB1082535A (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630127A (en) * 1969-05-21 1971-12-28 Hiroshi Matsumoto Tamping machine
US3756735A (en) * 1971-10-15 1973-09-04 Bopparder Maschinenbau Gmbh Vibration tamper
US3802791A (en) * 1970-11-25 1974-04-09 Wacker Werke Kg Tamping device for compacting soil, concrete, and the like
US3856426A (en) * 1972-07-25 1974-12-24 Losenhausen Maschinenbau Ag Ramming or tamping machine or 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
US20120076583A1 (en) * 2010-09-23 2012-03-29 Bomag Gmbh vibration tamper for compacting subsoil
JP2016216939A (ja) * 2015-05-15 2016-12-22 株式会社日立建機カミーノ プレートコンパクタの防振装置
CN107167351A (zh) * 2017-05-19 2017-09-15 山东科技大学 一种自动击实仪及其应用方法
CN111997033A (zh) * 2020-08-10 2020-11-27 曹和平 一种液压夯实机夯实装置的安装方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436081A1 (de) * 1994-10-10 1996-04-11 Bomag Gmbh Vibrationsstampfer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB877376A (en) * 1959-05-30 1961-09-13 Wacker Hermann Improvements in drive-transmitting devices for motor-driven hand-guided implements for compressing earth, sand, concrete and the like
US3073219A (en) * 1959-05-25 1963-01-15 Racine Hydraulics And Machiner Material compacting device
US3090286A (en) * 1959-10-24 1963-05-21 Herman Wacker Swing system for a motor-driven and manually-guided working device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR888976A (fr) * 1941-11-27 1943-12-28 Robert Wacker Kom Ges Appareil de compression conduit à la main
FR1176342A (fr) * 1956-05-30 1959-04-09 Appareil à tasser ou à secouer actionné par un moteur à combustion et conduit à la main
DE1875488U (de) * 1963-04-22 1963-07-11 Racine Hydraulics & Machinery Unabhaengiges, transportables verdichtungsgeraet.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3073219A (en) * 1959-05-25 1963-01-15 Racine Hydraulics And Machiner Material compacting device
GB877376A (en) * 1959-05-30 1961-09-13 Wacker Hermann Improvements in drive-transmitting devices for motor-driven hand-guided implements for compressing earth, sand, concrete and the like
US3090286A (en) * 1959-10-24 1963-05-21 Herman Wacker Swing system for a motor-driven and manually-guided working device

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3630127A (en) * 1969-05-21 1971-12-28 Hiroshi Matsumoto Tamping machine
US3802791A (en) * 1970-11-25 1974-04-09 Wacker Werke Kg Tamping device for compacting soil, concrete, and the like
US3756735A (en) * 1971-10-15 1973-09-04 Bopparder Maschinenbau Gmbh Vibration tamper
US3856426A (en) * 1972-07-25 1974-12-24 Losenhausen Maschinenbau Ag Ramming or tamping machine or 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
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
JP2016216939A (ja) * 2015-05-15 2016-12-22 株式会社日立建機カミーノ プレートコンパクタの防振装置
CN107167351A (zh) * 2017-05-19 2017-09-15 山东科技大学 一种自动击实仪及其应用方法
CN111997033A (zh) * 2020-08-10 2020-11-27 曹和平 一种液压夯实机夯实装置的安装方法

Also Published As

Publication number Publication date
DE1209066B (de) 1966-01-13
GB1082535A (en) 1967-09-06

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