EP2182143A2 - Pfahlramme - Google Patents

Pfahlramme Download PDF

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Publication number
EP2182143A2
EP2182143A2 EP09174382A EP09174382A EP2182143A2 EP 2182143 A2 EP2182143 A2 EP 2182143A2 EP 09174382 A EP09174382 A EP 09174382A EP 09174382 A EP09174382 A EP 09174382A EP 2182143 A2 EP2182143 A2 EP 2182143A2
Authority
EP
European Patent Office
Prior art keywords
mast
post
driver
cap
hammer
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.)
Withdrawn
Application number
EP09174382A
Other languages
English (en)
French (fr)
Other versions
EP2182143A3 (de
Inventor
Joseph Anthony Brennan
Michael Richard Brennan
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2182143A2 publication Critical patent/EP2182143A2/de
Publication of EP2182143A3 publication Critical patent/EP2182143A3/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/26—Devices for erecting or removing fences
    • E04H17/261—Devices for erecting or removing fences for post and wire handling
    • E04H17/263—Devices for erecting or removing fences for post and wire handling for erecting posts
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/01—Flat foundations
    • E02D27/08—Reinforcements for flat foundations
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
    • E02D7/02—Placing by driving
    • E02D7/06—Power-driven drivers
    • E02D7/14—Components for drivers inasmuch as not specially for a specific driver construction
    • E02D7/16—Scaffolds or supports for drivers

Definitions

  • This invention relates to post drivers, in particular for mounting on digger vehicles, tractors and the like.
  • the invention is particularly concerned with post drivers of the type having a mast with a hammer mounted on the mast which is operable for driving a post into the ground and a post cap mounted on the mast below the hammer for engaging a top of the post as the hammer drives the post into the ground.
  • a post driver including:
  • the post driver has means for mounting the mast on a tractor vehicle and means for raising the hammer on the mast for release to drive a post into the ground.
  • stop means is adjustable for adjustment of the allowable upward movement of the post cap on the mast.
  • the stop means is a stop element mounted spaced-apart from a bottom of the mast.
  • the stop means may be provided with a resilient face for engagement with the post cap.
  • bias means is provided for urging the post cap towards the bottom of the mast.
  • the bias means is a spring engaged between the post cap and the mast.
  • the mast is of I-section having an outer flange and an inner flange which are substantially parallel and spaced-apart, being interconnected by an intermediate web, the hammer is slideably mounted on the outer flange, the post cap is slidably mounted on the mast and extends rearwardly of the outer flange for engagement with the stop which is mounted on or adjacent the inner flange.
  • the post cap has a collar which slideably engages around the mast for slideably mounting the post cap on the mast.
  • a mounting frame for mounting the post driver on the tractor vehicle is attached to the mast and the stop is on the mounting frame.
  • the mounting frame includes a support plate mounted on the inner flange and protecting outwardly therefrom, an arm on the support plate carrying a connector element for attachment to a tractor vehicle.
  • the mounting frame has means for attachment to a three-point linkage on a tractor vehicle.
  • stop means is a chain mounted between the mast and the post cap.
  • the chain is attached to the mast at a lower end of the inner flange.
  • a pair of chains may be provided connected between the post cap and the inner flange at either side of the web.
  • the post cap is slidably mounted on the outer flange of the mast.
  • the post driver 1 has an upright mast 2.
  • a hammer 3 is slideably mounted on the mast 2 and is operable for driving a post into the ground.
  • a post cap 4 is slideably mounted on the mast 2 below the hammer 3.
  • a stop element 5 is provided for limiting upward movement of the post cap 4 on the mast 2.
  • the mast 2 is of I-Section having an outer flange 8 and an inner flange 9 which are substantially parallel and spaced-apart and joined by an intermediate web 10 which is perpendicular to the flanges 8, 9.
  • the hammer 3 is slideably mounted on the outer flange 8 for movement between a raised position and a lowered position on the mast 2.
  • a rope 7 or cable is operable for raising the hammer 3 from the lowered position to the raised position for release to drive a post into the ground.
  • the rope 7 is attached at one end to an anchor point 11 on the hammer 3 and extends upwardly around a fixed pulley 12 rotatably mounted at a top of the mast 2, down around a moveable pulley 14 rotatably mounted on a carriage 15 slideably mounted on the inner flange 9 and then upwardly to a fixed anchor point 16 at a top of the mast 2.
  • a ram 18 is operable to pull the carriage 15 downwardly in order to raise the hammer 3. This type of hammer actuating mechanism has already been described in our European Patent Application No. 08150985.3 and thus requires no further elaboration here.
  • the post cap 4 has a collar 20 at its inner end which slideably engages around the mast 2, sliding along the outer flange 8 and inner flange 9.
  • a land 21 at an inner end of the post cap 4 is engageable with the stop element 5.
  • a mounting frame 25 for mounting the post driver 1 on a tractor vehicle is attached to the mast 2.
  • the mounting frame 25 comprises a pair of support plates 26, 27 mounted on the inner flange 9 of the mast 2 and projecting rearwardly therefrom.
  • a laterally projecting arm 28 on one of the support plates 26 carries a connector element 29 for attachment to a tractor vehicle.
  • the connector element 29 is an excavator hitch for attachment to a digger vehicle.
  • a flanged inner end 30 of the arm 29 is bolted to the support plate 26.
  • Mounting holes 32 are provided in both support plates 26, 27 so that the arm 28 can be mounted on either support plate 26, 27.
  • Ram mounting holes 34 are also provided in the support plates 26, 27 to which a lower end of the ram 18 is attached for mounting the ram 18 between the support plates 26, 27 and the carriage 15.
  • Cut-out slots 37 at an inner end of each support plate 26, 27 allow upward movement of the collar 20 of the post cap 4 for engagement with the stop element 5 which is located at an inner (upper) end of the slots 37.
  • the post driver 1 is mounted on a digger vehicle by means of the connector element 29.
  • the mast 2 is raised and then an underside of the post cap 4 is engaged with a top of a post to be driven into the ground.
  • the mast 2 is lowered and the post cap 4 slides up the mast 2 until it engages against the stop 5.
  • the weight of the post driver 1 is now acting on the post to hold the post securely. Additional force can be applied by the arm of the excavator vehicle to which the post driver 1 is attached if desired.
  • the hammer 3 can then be raised and dropped onto the post cap 4 in the usual way for driving the post into the ground. If desired during the driving operation the mast 2 may be lowered to keep the post cap 4 positively engaged against the top of the post during hammering of the post into the ground.
  • stop element 5 is conveniently mounted on the support plates 26, 27. It will be appreciated however that the stop element 5 could be mounted on the mast 2, on the inner flange 9 or possibly the web 10 so long as it does not foul sliding movement of the hammer 3 on the mast 2.
  • FIG. 7 there is illustrated another post driver indicated generally by the reference numeral 40. Parts similar to those described previously are assigned the same reference numerals.
  • upward movement of the post cap 4 is limited by a chain 41 mounted between the inner flange 9, at a lower end thereof, and the post cap 4.
  • a pair of chains 41 may be mounted between each side of the post cap 4 and the inner flange 9 of the mast 2 at either side of the web 10.
  • a cable or similar restrainer could be used.
  • the post cap 4 is slidably mounted on the outer flange 8 of the mast 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
EP09174382.3A 2008-10-28 2009-10-28 Pfahlramme Withdrawn EP2182143A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE20080873 2008-10-28

Publications (2)

Publication Number Publication Date
EP2182143A2 true EP2182143A2 (de) 2010-05-05
EP2182143A3 EP2182143A3 (de) 2014-09-24

Family

ID=41508173

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09174382.3A Withdrawn EP2182143A3 (de) 2008-10-28 2009-10-28 Pfahlramme

Country Status (2)

Country Link
EP (1) EP2182143A3 (de)
IE (2) IE20090828A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2481273A1 (de) * 2011-01-26 2012-08-01 William Griffin Verbesserte obere Kulissenanordnung
WO2023110036A1 (en) * 2021-12-14 2023-06-22 Fractum Aps A hammering device and a method for operating a hammering device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4050526A (en) * 1975-05-07 1977-09-27 Foresight Industries Post driving machine
GB9825600D0 (en) * 1998-11-21 1999-01-13 Hooper Ind Limited Post driver
WO2008049159A1 (en) * 2006-10-25 2008-05-02 Brooke & Mackenzie Pty Ltd Post driver

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2481273A1 (de) * 2011-01-26 2012-08-01 William Griffin Verbesserte obere Kulissenanordnung
WO2012100857A1 (en) * 2011-01-26 2012-08-02 William Griffin Improved top link arrangement
WO2023110036A1 (en) * 2021-12-14 2023-06-22 Fractum Aps A hammering device and a method for operating a hammering device
US12264454B2 (en) 2021-12-14 2025-04-01 Fractum Aps Hammering device and a method for operating a hammering device

Also Published As

Publication number Publication date
EP2182143A3 (de) 2014-09-24
IES20090827A2 (en) 2010-06-23
IE20090828A1 (en) 2010-06-23

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Effective date: 20150325