EP0042373A1 - Machines a smillage - Google Patents

Machines a smillage

Info

Publication number
EP0042373A1
EP0042373A1 EP19790900539 EP79900539A EP0042373A1 EP 0042373 A1 EP0042373 A1 EP 0042373A1 EP 19790900539 EP19790900539 EP 19790900539 EP 79900539 A EP79900539 A EP 79900539A EP 0042373 A1 EP0042373 A1 EP 0042373A1
Authority
EP
European Patent Office
Prior art keywords
scabbling
frame
scabbier
tool
cylinder
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Withdrawn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
EP19790900539
Other languages
German (de)
English (en)
Inventor
Jim Furby
Ernest Eric Hopwell
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.)
JOAD ENGINEERING Ltd
Original Assignee
JOAD ENGINEERING Ltd
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 JOAD ENGINEERING Ltd filed Critical JOAD ENGINEERING Ltd
Publication of EP0042373A1 publication Critical patent/EP0042373A1/fr
Withdrawn legal-status Critical Current

Links

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
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
    • E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
    • E01C23/0855—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools moved rectilinearly, e.g. scabblers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/26—Lubricating
    • B25D17/265—Lubricating the lubricant being entrained to the machine parts by the driving fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/28—Supports; Devices for holding power-driven percussive tools in working position
    • B25D17/32—Trolleys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
    • B28D1/265—Scabbling machines or scabbling tools

Definitions

  • This invention relates to scabblers, that is to say machines for roughening, abrading or removing projections from hard ground . surfaces, such as roads or like concrete constructions.
  • BACKGROUND A-RT Scabblers are known from U.S. Patent Specificati
  • the scabbier of Briese is mounted on three wheels each aligned in the front-to-rear direction, but the scabblers of Metropolitan and MacDonald are provid with only two wheels and are therefore highly manoevrable.
  • the scabbier of Metropolitan the pressure of the scabbling tools on the ground surface is controlled by the operator who can raise or lower the.handles to vary the effective height of the scabbling tools above the surface being roughened.
  • the pressure of the scabbling tools on the surface being roughened is a characteristic of the machine itself as the impacting of the scabbling tools on the ground is sufficient to raise the wheels from the ground.
  • a scabbier comprises a-frame, a number of cylinders mounted upon or within the frame each having a scabbling tool removably inserted into an end thereof, a piston completely received in each cylinder and reciprocable under motive fluid pressur therein for striking the scabbling tool, handle means connected to the frame, and at least three ground wheels connected to the frame, at least one being a castor wheel, for presenting the frame and scabbling tool a constant height above the ground.
  • one or more of the ground wheels is a castor wheel means that the machine is just as manoevrable as the previous two-wheeled machines, withou any sacrifice in the precision of the constant height presentation of the frame which is attained in the
  • the provision of at least three ground wheels in the scabbier according to this invention ensures that the scabbl tool movement can be kep ⁇ ormal to the ground to get maximum impact.
  • the use of a piston separate from the scabbling tool makes it possible to work at -a high number of impacts per second and a high energy per blow.
  • the scabbling tool movement is also reduced in the scabbier of this invention by the use of a piston separate from the scabbling tool, but this reduction does not adversely affect the performance of the scabbier as the frame height above ground is maintained constant.
  • the scabbling tool movement is much less than the piston movement, so that the tendency for dirt and grit to get drawn into the lower end of the cylinder is much less than in the above prior art machines in which the scabbling tool shank was the piston. Wear at the cylinder mouth is thus enormousl reduced. Moreover, such wear as does occur does not resul in a substantial power loss as it would if it were the " cylinder around the piston that were worn. Scabbling tool replacement i-s simple, as the piston and piston seals do not have to be replaced or even disturbed.
  • the scabbling tool shank is received in a removable bush within the cylinder so that any wear around the cylinder mouth can be simply and speedily rectified by' renewing the bush at the same time as renewing the scabbling tool.
  • a scabbling tool is preferably retained by means of a spring engaging in grooves in the exterior of the tool and of the-cylinder.
  • the frame is preferably a casting which may have formed therein each of a motive fluid inlet, a motive fluid outlet, one or more lubricators and one or more lubricating oil reservoirs.
  • the cylinders are preferably received substantially completely in,recesses in the frame between a forward 'pair of the ground wheels.
  • the frame is a single casting extending backwards, incorporating a lubricator and carrying a rear castor wheel. This makes for simplicity and robustness of construction, and easy serviceability.
  • Figures 1, 2 and 3 are respectively a side eleva a rear elevation and a plan view of a scabbier according this invention
  • Figure 4 is a vertical section through a lubrica assembly of one half only of the scabbier of Figure 1, t section being taken along the line A-A of Figure 5;
  • Figure 5 is a staggered section taken along the
  • Figure 6 is an ' axial section through a cylinder assembly, piston and scabbling tool of Figure 5;
  • Figure 7 is a side elevation of a modified scabb
  • Figure 8 is a plan thereof. BEST MODE OF CARRYING OUT THE INVENTION
  • the scabbier comprises a frame 1 to which is secured a handle 2 and t ground-engaging castor wheels 3, 4 and 5.
  • the castor wh 3 and 4 are arranged near the front of the frame 1, and about vertical axes that are in alignment with a row of scabbling tools 6.
  • the rear castor wheel 5 is mounted o rearward extension 7 of the frame 1 that is bolted betwe opposite side portions of the handle 2.
  • the mounting of each of the castor wheels 3, 4 a is such that when the scabbier is on a flat surface the scabbling tools 6 are presented normally to the surface
  • a pneumatic air line (not shown ⁇ is in use connected to the scabbier to provide the motive fluid for the - scabbling tools 6, •
  • the air line is connected to an on/off control valve 8 secured at the top of the handle 2, and an air pipe 9 leads the air from the control valve 8 to an inlet 10 in the frame 1.
  • the inlet 10 leads to an air dividing chamber 11 0 from which it is passed to identical pneumatic air passages in opposite sides of the frame each side of • the frame 1 having air passages therein for controlling two of the four scabbling tools 6.
  • the left hand side of the machine is illustrated in 5 : . Figure 4 and described below..
  • Each of the inlet chambers 21 and 23 leads to a control valve assembly 24 of its associated cylinder.
  • the control valve assemblies 24 and cylinders are identical, and the construction of each is illustrated in Figure 6.
  • the control valve assembly 24 is a conventional clack valve for supplying the motive air intermittently to an upper working face of a piston to cause the piston to reciprocate.
  • the piston is numbered 25 in Figure 6, and is completely received in a cylinder 26 which is mount in the frame 1. It is clear from Figure 5 that the cylinder 26 is inserted downwardly.into the frame 1, the control valve assembly 24 inserted over it and the whole retained in position by a top plate 27. The cylinder 26 is further secured in position by a bolt 28 in the rame 1.
  • pilot pressure again causes actuation of the control valve assembly 24 so that the cycle is repeated.
  • the exhaust air is passed, at the end of each power stroke of the piston 25, to the exhaust chamber 32 formed between the cylinder 26 and frame 1, whence it may be directed to a silencer Cnot shown) or to jets Cnot shown) arranged to clear away the chippi gs produced by the machine in use .. ' At the downward limit of its travel when the piston
  • the scabbling tools 6 can easily be removed from the cylinders 26, for example for replacement when tungsten carbide teeth 42 thereon become worn.
  • the motive air is applied intermittently to the pneumatic chamber 29 so that reciprocation of the pistons 25 is very rapid.
  • a high energy impact is delivered " to the associated scabbling tool 6, so that an efficient scabbling action is achieved.
  • the various pistons and cylinders operate in a random manner.
  • the main frame comprises a single casting mounting cylinders 26 and the lubricator 18, and having the rearward extension 7 carrying the rear castor wheel 5.
  • the air inlet 10 is above the lubricator 18, but the air passes through the divider chamber 11 and down through the Venturi tube 15 and inner inlet chamber 21 to the control valve assemblies 24.
  • the rearward extension 7 of the main frame meets a lower extension, and the rear castor wheel 5 is bolted ' thereto.
  • the side wheels 3, 4 are mounted directly on the main frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Repair (AREA)

Abstract

Une machine a smillage pour rendre rugueuses les surfaces des sols durs tels que des routes en beton, comprend plusieurs cylindres montes sur ou dans un chassis (1), chaque cylindre ayant un outil a smiller (6) insere de maniere amovible dans son extremite. Un piston est recu completement dans chaque cylindre et possede un mouvement de va-et-vient sous la pression d'un fluide pour la percussion de l'outil (6). Le chassis (1) est fait en une seule piece de coulee incorporant un dispositif de lubrification et une barre de manipulation (2) et au moins trois roues (3, 4, 5), dont l'une au moins est une roue pivotante.
EP19790900539 1979-06-07 1979-06-07 Machines a smillage Withdrawn EP0042373A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB1979/000098 WO1980002704A1 (fr) 1979-06-07 1979-06-07 Machines a smillage

Publications (1)

Publication Number Publication Date
EP0042373A1 true EP0042373A1 (fr) 1981-12-30

Family

ID=10502277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790900539 Withdrawn EP0042373A1 (fr) 1979-06-07 1979-06-07 Machines a smillage

Country Status (2)

Country Link
EP (1) EP0042373A1 (fr)
WO (1) WO1980002704A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074234B1 (fr) * 1981-09-02 1989-01-25 John Macdonald & Company (Pneumatic Tools) Limited Appareil à boucharder
CN105256704B (zh) * 2015-11-23 2016-06-01 广东赛力克建筑技术工程有限公司 一种机载式凿毛机及混凝土表面凿毛方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB647626A (fr) *
FR506352A (fr) * 1919-09-08 1920-08-20 Albert Collet Appareil à boucharder à commande électrique
DE444366C (de) * 1926-10-16 1927-05-16 Gustav Duesterloh Arbeitsstahl-Haltevorrichtung fuer Pressluftwerkzeuge
DE472654C (de) * 1927-05-21 1929-03-05 Praez Swerkzeug Akt Ges Deutsc Fahrbare Maschine zum Aufrauhen von Steinfussboeden oder -pflastern
DE586807C (de) * 1931-05-03 1933-10-26 Karl Von Staa Sen Fahrbarer Pressluftstockhammer
FR839880A (fr) * 1937-08-25 1939-04-13 Chicago Pneumatic Tool Co Graisseur pour tuyauteries à air
US2527757A (en) * 1945-11-26 1950-10-31 Independent Pneumatic Tool Co Bushing for pneumatic hammers
US2562899A (en) * 1946-08-08 1951-08-07 Daniel J Finn Pneumatic deck scaling machine
FR973100A (fr) * 1948-10-08 1951-02-07 Appareil pneumatique utilisé pour le décapage de la peinture formant bloc-frappeur
US2553435A (en) * 1948-12-21 1951-05-15 Todd Shipyards Corp Deck scaler
GB709904A (en) * 1950-07-24 1954-06-02 Metropolitan Construction Comp Apparatus for roughening the surfaces of hard materials
US3067487A (en) * 1960-06-22 1962-12-11 Vindum Kristian Rust removing apparatus
US3189104A (en) * 1960-09-09 1965-06-15 Atlas Copco Ab Percussion tools
GB1056011A (en) * 1965-02-25 1967-01-25 John Macdonald & Company Multi-tool concrete scabbling unit
GB1162825A (en) * 1966-09-08 1969-08-27 Duncan Stewart Bonnybridge Ltd Support for a Powered Device for Cutting, Drilling or Breaking Rock, Concrete or like material
BE754301A (fr) * 1969-08-04 1971-01-18 Wassmer Alfred Chariot guide pour marteaux perforateurs
GB1397924A (en) * 1971-05-28 1975-06-18 Klarcrete Ltd Method and apparatus for cutting grooves in concrete roads
BE789133A (fr) * 1971-09-22 1973-01-15 Klarcrete Ltd Machine a niveler les routes
FR2319465A1 (fr) * 1975-07-30 1977-02-25 Carre Pistollet Gerard Lubrificateur pour outillage pneumatique
GB2010163A (en) * 1977-09-24 1979-06-27 Joad Eng Ltd Scabblers
WO1979000771A1 (fr) * 1978-03-16 1979-10-04 Joad Eng Ltd Trepan a smiller

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8002704A1 *

Also Published As

Publication number Publication date
WO1980002704A1 (fr) 1980-12-11

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Effective date: 19811230

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FURBY, JIM

Inventor name: HOPWELL, ERNEST ERIC