EP0215517B1 - Machine de lissage de surfaces en béton - Google Patents

Machine de lissage de surfaces en béton Download PDF

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Publication number
EP0215517B1
EP0215517B1 EP86201522A EP86201522A EP0215517B1 EP 0215517 B1 EP0215517 B1 EP 0215517B1 EP 86201522 A EP86201522 A EP 86201522A EP 86201522 A EP86201522 A EP 86201522A EP 0215517 B1 EP0215517 B1 EP 0215517B1
Authority
EP
European Patent Office
Prior art keywords
trowels
shaft
sets
lever
vertical
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
Application number
EP86201522A
Other languages
German (de)
English (en)
Other versions
EP0215517A1 (fr
Inventor
Antoon Lambertus Kremers
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.)
Besto Bv
Original Assignee
Besto Holland BV
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 Besto Holland BV filed Critical Besto Holland BV
Priority to AT86201522T priority Critical patent/ATE41196T1/de
Publication of EP0215517A1 publication Critical patent/EP0215517A1/fr
Application granted granted Critical
Publication of EP0215517B1 publication Critical patent/EP0215517B1/fr
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/10—Devices for levelling, e.g. templates or boards
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F21/00—Implements for finishing work on buildings
    • E04F21/20—Implements for finishing work on buildings for laying flooring
    • E04F21/24—Implements for finishing work on buildings for laying flooring of masses made in situ, e.g. smoothing tools
    • E04F21/245—Rotary power trowels, i.e. helicopter trowels
    • E04F21/247—Rotary power trowels, i.e. helicopter trowels used by an operator sitting on the trowel, i.e. ride-on power trowels

Definitions

  • the invention relates to a machine for the smoothing of freshly poured concrete surfaces, consisting substantially of a horizontally displaceable frame with fastening and mounting points for
  • the machine is self-propelled and the operator can occupy a seat thereon and move the machine in a direction which is required for the smoothing of the concrete surface to be worked.
  • a machine of this type is known from U.S. Patent No. 4 046 484.
  • the propulsion and the concurrent smoothing of a freshly poured concrete surface take place by slightly tilting the sets of rotating trowels symmetrically and/or systematically relative to one another round their axis of rotation.
  • Figures 6-11 of US-A 4 046 484 show that in this manner a forward, backward and lateral or rotary movement can be accomplished.
  • This design permits a large concrete surface to be treated quickly, indeed much faster than can be done with a manually propelled rotating set of trowels which involves the necessity of "obliterating" footsteps on the fresh concrete.
  • the aforesaid known machine has two disadvantages:
  • Each set of trowels 5, 5', 5" and 6, 6', 6" is horizontally fitted to vertically adjustable shafts 7 and 8, respectively. These shafts are driven through transmission gear cases 9 and 10, respectively, whereby the horizontal rotation of shaft 11 is converted into the vertical rotation. Shaft 11 actuates the gears 9 and 10 through toothed drive belts 12 and 13, respectively, which are provided with tightening pulleys.
  • This set-up ensures synchronous operation of the two sets of trowels, whilst leaving scope for some measure of operational mobility. It is this embodiment which must be considered largely essential for the invention since a smooth adjustability while preserving the desired synchronization is imperative.
  • Shaft 11 is driven by the engine 3 through a belt 14 looped round a pulley 15 and through an adjustable centrifugal clutch 16.
  • the two sets of trowels 5, 5', 5" and 6, 6', 6" are vertically adjustable together with their shafts 7, 8 and transmission gear cases 9, 10 by means of set screws 17 and 18.
  • the set of trowels 6, 6', 6" can be tilted from the vertical in the plane of the view according to Figure 1 by means of a control lever 20 to be operated from the seat 2. This is effected by moving a lever 21 through a tie rod 22 with a fixed hinge point 21', which movement is transmitted with the aid of a tie rod 23 through a hinge point to a rocker shaft 24 which can tilt the case 10 with shaft 8 and trowel blades 6, 6', 6" perpendicularly to the plane of projection of Figure 2.
  • the arrangement is indicated somewhat schematically, because several embodiments of this mechanism, other than the one here specified, can be conceived without detracting from the essence of the invention.
  • One conceivable mode of transmission could utilize a Bowden cable.
  • the control lever 25 can, in addition, be shifted in a direction perpendicular to the one first mentioned. A shift in this direction gives rise to the activation of a shaft 30, which makes it possible to tilt case 10, shaft 7 and the trowels 5, 5', 5" in a plane parallel to that of the projection according to Figure 2.
  • a rod 31 which is linked to an extension of the control lever 25 acts in concert with a lever 33 which hinges on shaft 32 and which is connected to case 9.
  • the system of this shift mechanism is not compulsorily bound up with the embodiment here specified, as stated hereinbefore.
  • An essential feature of the invention is that the means of adjustment of the shift mechanisms for the trowels to be positioned are not interconnected and are not movable relative to one another according to a systematic pattern of motions, whilst nonetheless the trowels rotate synchronously vis-à-vis one another in a smooth and adjustable mode of operation through the toothed belts 12 and 13 on motive power derived from the common shaft 11.
  • the design incorporates a simple operating system for a set of trowels 6, 6', 6" and only a straightforward extension for the more complex range of movements to be performed by the set of trowels 5, 5', 5".
  • the clutch 16 in this embodiment a centrifugal clutch, drives the trowels synchronously, but not until a predetermined torque to be transmitted has been attained.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Road Paving Machines (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Claims (5)

1. Dispositif pour lisser des surfaces de béton fraichement coulées, constitué par un chassis déplaçable horizontalement (1) avec des points de fixation et de montage pour:
a) deux séries de truelles (5, 5', 5"; 6, 6', 6"), chacune perpendiculaire à l'extrémité d'un arbre de rotation, lesquelles truelles peuvent travailler la surface du béton fraichement coulée dans un mouvement de rotation, et lequel arbre est capable de s'incliner par rapport à la verticale, tandis que les zone d'opération des truelles se chevauchent partiellement;
b) un méchanisme d'entrainement par moteur (3) que peut faire tourner les séries de truelles (5, 5', 5"; 6, 6', 6") de façon synchrone et en sens opposés;
c) des moyens pour placer les arbres de rotation dans l'inclinaison voulue par rapport à la verticale, grâce à au moins un levier de commande (20, 25);
d) un siège (2), à partir duquel on peut actionner le levier (les leviers) (20, 25) et le mécanisme d'entrainement par moteur (3);
e) des moyens (17, 18) pour régler la position en hauteur des deux séries de truelles (5, 5', 5"; 6, 6', 6") par rapport au chassis (1), avec la caractéristique que:
f) un des arbres d'entrainement (8) des deux séries de truelles (5, 5', 5"; 6, 6', 6") est ajustable par rapport à la verticale au moyen d'un levier (20), dans un plan perpendiculaire au déplacement en ligne droite vers l'avant;
g) le second arbre d'entrainement (7) de la deuxième séries de truelles est ajustable, au moyen d'un second levier (25), dans n'importe quelle position par rapport à la verticale, et
h) il y a, entre le moteur d'entrainement (3) et le mécanisme des arbres de rotation (7, 8) des deux séries de truelles (5, 5', 5"; 6, 6', 6"), un accouplement (16) qui embraie pour un couple précis et déterminé à transmettre.
2. Dispositif selon la revendication 2, avec la caractéristique que l'accouplement (16) est un accouplement centrifuge.
3. Dispositif selon les revendications 1 et 2, avec la caractéristique que les deux arbres d'entraine- ment (7, 8) des deux séries de truelles (5, 5', 5"; 6, 6', 6") sont entrainés de façon synchrone, par l'intermédiaire d'un mécanisme de transmission (9, 10), par des courroies dentées auto-réglables en tension (12, 13), à partir d'un arbre commun (11) situé derrière l'accouplement (16).
4. Dispositif selon une ou plusieurs des revendications précédentes, avec la caractéristique que l'arbre (8) mobile dans une direction peut, par l'intermédiaire de la boîte à engrenage (10), être ajusté par le levier (manette) (20), l'ensemble de biellettes (22, 21, 23) reliées entre elles et à ce levier de façon articulée, et l'arbre basculant (24), et que l'arbre (7) mobile dans deux directions par rapport à la position verticale peut être ajusté dans une direction par le levier (manette) de réglage (25), le premier système de biellettes (27, 26, 28) reliées de façon articulée et l'arbre (29), et peut être également ajusté dans une direction perpendiculaire à la précédente par l'intermédiaire d'une tige (31) qui lui est raccordée en plus, du levier (33) et de la boîte à engrenage (9).
5. Dispositif selon les revendications 1-3, avec la caractéristique que la boîte à engrenage (10) peut, avec l'arbre (8), être basculée dans un plan vertical par l'intermédiaire d'un cable Bowden, et que la boîte (9), avec l'arbre (7), peur être basculée dans deux plans perpendiculaires l'un à l'autre, par l'intermédiaire de deux cables Bowden.
EP86201522A 1985-09-16 1986-09-04 Machine de lissage de surfaces en béton Expired EP0215517B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86201522T ATE41196T1 (de) 1985-09-16 1986-09-04 Maschine zum glaetten von betonoberflaechen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8502520A NL8502520A (nl) 1985-09-16 1985-09-16 Machine voor het gladmaken van betonoppervlakken.
NL8502520 1985-09-16

Publications (2)

Publication Number Publication Date
EP0215517A1 EP0215517A1 (fr) 1987-03-25
EP0215517B1 true EP0215517B1 (fr) 1989-03-08

Family

ID=19846556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201522A Expired EP0215517B1 (fr) 1985-09-16 1986-09-04 Machine de lissage de surfaces en béton

Country Status (4)

Country Link
EP (1) EP0215517B1 (fr)
AT (1) ATE41196T1 (fr)
DE (1) DE3662287D1 (fr)
NL (1) NL8502520A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4784519A (en) * 1987-03-26 1988-11-15 M-B-W Inc. Directional control mechanism for surface working machine
US4848960A (en) * 1987-04-15 1989-07-18 Shimizu Construction Company Limited Finishing machine for a concrete surface
US5480258A (en) * 1993-12-30 1996-01-02 Allen Engineering, Inc. Variable width, twin engine riding trowel
DE9418169U1 (de) * 1994-11-12 1995-01-26 BETONTECHNIK Schumacher GmbH, 74343 Sachsenheim Betonglättmaschine
JP6709659B2 (ja) * 2016-03-30 2020-06-17 前田建設工業株式会社 コンクリート表面の自動仕上装置
CN108316626A (zh) * 2018-03-27 2018-07-24 江苏杰工机电设备有限公司 一种驾驶型抹光机用十字座机构

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1152959A (fr) * 1956-05-31 1958-02-27 Comptoir D Outil Et De Fournit Taloche mécanique horizontale pour travaux de maçonnerie
US2942536A (en) * 1956-11-23 1960-06-28 Master Vibrator Co Troweling machine
US3936212A (en) * 1972-06-01 1976-02-03 Orville H. Holz, Jr. Ride-type surface-working machines
US4046484A (en) * 1976-11-15 1977-09-06 Orville H. Holz, Jr. Spaced-rotor ride-type surface working machine with single-stick control of all movements

Also Published As

Publication number Publication date
NL8502520A (nl) 1987-04-16
EP0215517A1 (fr) 1987-03-25
DE3662287D1 (en) 1989-04-13
ATE41196T1 (de) 1989-03-15

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