WO2009144027A2 - Appareil de commande d’une colonne - Google Patents

Appareil de commande d’une colonne Download PDF

Info

Publication number
WO2009144027A2
WO2009144027A2 PCT/EP2009/003852 EP2009003852W WO2009144027A2 WO 2009144027 A2 WO2009144027 A2 WO 2009144027A2 EP 2009003852 W EP2009003852 W EP 2009003852W WO 2009144027 A2 WO2009144027 A2 WO 2009144027A2
Authority
WO
WIPO (PCT)
Prior art keywords
post
mast
slide member
support
linking means
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
PCT/EP2009/003852
Other languages
English (en)
Other versions
WO2009144027A3 (fr
Inventor
Michael Mcfall
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 WO2009144027A2 publication Critical patent/WO2009144027A2/fr
Anticipated expiration legal-status Critical
Publication of WO2009144027A3 publication Critical patent/WO2009144027A3/fr
Ceased legal-status Critical Current

Links

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
    • 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
    • E02D7/08—Drop drivers with free-falling hammer

Definitions

  • This invention relates to a post driving apparatus and in particular to an apparatus for driving fence posts into the ground.
  • Known post drivers comprise a vertical mast having a driving weight suspended from or slidably mounted on the mast and a lifting means, such as a hoist or a hydraulic ram, for lifting the weight and subsequently dropping the weight under the action of gravity to impact upon the upper end of post to drive the post into the ground.
  • a lifting means such as a hoist or a hydraulic ram
  • a post support slidably mounted upon the mast beneath the driving weight, in the form of a flat plate having a depending post holding means, such as a spike.
  • the post support holds the post in place and transfers the impact of the driving weight on the upper face of the post support to the upper end of the post.
  • a post driving apparatus comprising a vertical or substantially vertical mast having a driving weight slidably mounted thereon, lifting means for lifting the driving weight along the mast to a raised position, a post support slidably mounted upon the mast beneath the driving weight, the post support extending substantially perpendicular to the mast to rest upon an upper end of a post, a slide member being slidably mounted on the mast above the driving weight, said slide member being
  • CONFIRWATION COPY connected to the post support by an elongate linking means such that the post support can be suspended from the slide member.
  • the support plate can be reliably held in a raised position when the driving weight is moved to its raised position by virtue of the slide member which is located above the driving weight and thereby suspends the post support beneath the driving weight by means of the elongate linking means.
  • said post support comprises at least one post engaging member depending therefrom for engaging and holding the upper end of a post.
  • said at least one post engaging member comprises one or more depending spikes or projections adapted to be pushed into the upper surface of the post.
  • said at least one post engaging member may comprise one or more depending walls arranged to be positioned around the upper end of the post to engage the sides of the post to maintain the upper end of the post in position.
  • said elongate linking means comprises a variable length member for varying the position of the post support on the mast with respect to the slide member.
  • the elongate linking means comprises a rigid member, more preferably an extendable rigid member. More preferably the linking means comprises an extendable and retractable rigid member. In a preferred embodiment said linking means comprises a double acting hydraulic or pneumatic ram or any other kind of double acting linear actuator. In an alternative member said linking means comprises a threaded rod, such as a rigging screw, or an elongate resilient member, comprising or incorporating a spring.
  • said mast includes an upper stop for limiting the upper position of the slide member on the mast.
  • the elongate linking means comprising a rigid link connected between the slide member and the post support for transferring a force between the upper stop and the plate support via the slide member when the slide member is in contact with upper stop.
  • the elongate linking means is extendable to apply a downward force upon the post to thereby apply a preload force to an upper end of a post when the slide member is in contact with the upper stop.
  • the elongate linking means may comprise a rope, chain or similar non-rigid elongate linkage extending between the post support and the slide member for suspending the post support from the slide member.
  • the apparatus may be adapted to be attached to an articulated arm of an excavator or back hoe. Alternatively the apparatus may be adapted to be attached to the three point linkage of a tractor or similar agricultural vehicle.
  • Fig. 1 is a side view of a post driving apparatus according to an embodiment of the present invention.
  • a post driving apparatus 1 comprises an upright mast 2 having a carriage 3 slidably mounted on a front face thereof, upon which carriage 3 is carried a driving weight 4 for driving a post into the ground.
  • a lever arm 5 is pivotally mounted on a rear face of the mast and a rope 6 is attached between the driving weight 4 and an upper end of the lever arm 5, the rope 6 extending over a pulley 7 mounted at the top of the mast 2.
  • a hydraulic ram 8 is provided for pivoting the lever arm 5 away from the mast 2 to lift the driving weight 4 to a raised position. The ram 8 is single acting to lift the driving weight 4 and then release the driving weight, allowing the lever arm 5 to freely move back into contact with the mast 2, releasing the driving weight 4 to fall under the action of gravity.
  • a resilient stop 9 is provided on the lever arm 5 for absorbing the impact of the lever arm 5 with the mast 2.
  • a post support 10 is slidably mounted on the mast 2 below the driving weight 4, the post support 10 comprising a flat plate extending perpendicular to the mast having an upper face 11 against which the driving weight acts and a lower face 12 provided with a plurality of downwardly facing spikes 13 for holding an upper end of a post in contact with the post support parallel 10 to the mast 2.
  • the post support may comprise a gripper plate or grab mechanism with means for positively gripping or holding the top of a post, or a peripheral depending wall arranged to surround the end of the post to retain the post in contact with the post support
  • a slide member 12 is slidably mounted on the mast 2 above the driving weight 4 and a double acting ram 14 is connected to and extends between the slide member 12 and the post support 10 on one side of the mast 2.
  • An upper stop 15 is provided at the top of the mast for limiting the upward travel of the driving weight 4 and the slide member 12, the slide member 12 being located on the mast 2 between the driving weight 4 and the stop member 15 so that the slide member 12 is trapped between the driving weight 4 and the upper stop 15 when the driving weight 4 is in its raised position.
  • the driving weight 4 is held in its raised position
  • the slide member 12 is held against the upper stop 15 by the driving weight 4 and the post support 10 is held in a raised position due to the post support 10 being suspended below the slide member 12 by the double acting ram 14.
  • the post support 10 can be reliably held in a raised position by means of the driving weight 4 and the slide member 12 to permit the safe location of a post therebeneath.
  • the double acting ram 14 can be extended to lower the post support 10 into contact with the upper end of the post. Subsequently further extension of the double acting ram 14 pushes downwardly on the post, the upper end of the double acting ram 14 acting against the upper stop 15 of the mast via the slide member 12.
  • the weight of the post driving apparatus 1 and, if desired, the weight of the attached vehicle can be transferred onto the post to effectively pre-load the post and assist in pushing the post into the ground while holding the post support in contact with an upper end of the post.
  • the driving weight 4 can then be raised and release a desired number of times by activation and release of the hydraulic ram 8 to drive the post into the ground.
  • the post support is connected to the slide member, which is slidably mounted on the mast above the driving weight 4, and is therefore not connected directly to the mast, the post support is free to move downwardly with respect to the mast and the downward impact of the driving weight on the post support cannot be transmitted to the mast.
  • the post driving apparatus 1 is adapted to be connected to an articulated arm 20 of a vehicle, such as an excavator or back hoe.
  • the mast is connected to the articulated arm via a rotary wrist joint and a pivot providing rotational axes in respective perpendicular horizontal axes A,B, a pair of double acting rams 22,24 being provided for respectively rotating the mast 1 about said respective axes for adjusting the angle of inclination of the mast 2 of the post driving apparatus 1.
  • the post driving apparatus may be adapted for attachment to the three point linkage of a tractor or may be provided on a free standing framework.
  • the post support may be connected to the slide member by a rope or chain such that the post support is suspended from the slide member when the slide member is in its raised position.
  • the post support may be connected to the slide member by a threaded rod, such as a rigging screw.
  • the post support may be connected to the slide member by an elongate resilient member, comprising or incorporating a spring.
  • the driving weight may be movable both upwardly and downwardly along the mast by means of an actuator, such as a double acting hydraulic or pneumatic ram.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (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)
  • Movable Scaffolding (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Hydroponics (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Abstract

L’invention concerne un appareil de commande d’une colonne qui comprend un mât vertical ou sensiblement vertical sur lequel est monté en coulissement un poids de commande, des systèmes de levage pour lever le poids de commande le long du mât jusqu’à une position élevée, un support de colonne monté en coulissement sur le mât, sous le poids de commande. Le support de colonne s’étend sensiblement perpendiculairement au mât pour s’appuyer sur une extrémité supérieure d’une colonne; un élément coulissant est monté en coulissement sur le mât au-dessus du poids de commande, ledit élément coulissant étant relié au support de colonne par un système de liaison allongé, de sorte que le support de colonne puisse être suspendu depuis l’élément coulissant.
PCT/EP2009/003852 2008-05-30 2009-05-29 Appareil de commande d’une colonne Ceased WO2009144027A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0809765.1 2008-05-30
GB0809765A GB0809765D0 (en) 2008-05-30 2008-05-30 Post driving apparatus

Publications (2)

Publication Number Publication Date
WO2009144027A2 true WO2009144027A2 (fr) 2009-12-03
WO2009144027A3 WO2009144027A3 (fr) 2013-02-21

Family

ID=39637787

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/003852 Ceased WO2009144027A2 (fr) 2008-05-30 2009-05-29 Appareil de commande d’une colonne

Country Status (2)

Country Link
GB (1) GB0809765D0 (fr)
WO (1) WO2009144027A2 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598882A1 (fr) * 1986-05-22 1987-11-27 Dagnaud Motoculture Service Sa Dispositif d'enfoncement de pieux dans les sols.
GB0503696D0 (en) * 2005-02-23 2005-03-30 Bryce John M Post drivers

Also Published As

Publication number Publication date
WO2009144027A3 (fr) 2013-02-21
GB0809765D0 (en) 2008-07-09

Similar Documents

Publication Publication Date Title
AU2013200059B2 (en) Log loader
US7731451B2 (en) Magnetic cover remover
ES2241260T3 (es) Pinza hidraulica para tractor.
CN112227269A (zh) 公路护栏安装装置及其使用方法
US4846445A (en) Hydraulic fence post puller
US20080181756A1 (en) Pole-handling attachment for an end loader
WO2018026320A1 (fr) Système et procédé de fixation, de déplacement et de mise en place d'un pieu ou d'un objet allongé lourd
JP6715990B2 (ja) 柱状部材の把持装置及び当該装置を備えた車両
EP2953882B1 (fr) Un outil de préhension pour la fixation d'un objet allongé
WO2009144027A2 (fr) Appareil de commande d’une colonne
CA2915438A1 (fr) Arrache-pieux et methode associee employant une action de levage d'une machine de travail pour actionner les dispositifs de prehension en forme de came de l'arrache-pieux
JP2020100987A (ja) 柱状部材の把持装置及び当該装置を備えた車両
EP2732691A2 (fr) Grappin d'empilage de balles rondes
US20010038790A1 (en) Bale handling apparatus
US6105683A (en) Post picker
GB2460742A (en) Rotating post holder for post driver
US20030129049A1 (en) Bale handling apparatus
US20140356120A1 (en) Rod loader attachment
CN115485435B (en) Erection and lifting tool
AU2013202810A1 (en) Rod loader attachment
GB2031976A (en) Improvements in post driving apparatus
US11142112B1 (en) Trailer mounted log loader
AU662547B2 (en) Grapple lifting implement
AU2014100050A4 (en) Driver Apparatus
JPS58525A (ja) 杭打込装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09753682

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09753682

Country of ref document: EP

Kind code of ref document: A2