EP0215517B1 - Maschine zum Glätten von Betonoberflächen - Google Patents

Maschine zum Glätten von Betonoberflächen 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
English (en)
French (fr)
Other versions
EP0215517A1 (de
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/de
Application granted granted Critical
Publication of EP0215517B1 publication Critical patent/EP0215517B1/de
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.

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  • 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)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Claims (5)

1. Vorrichtung zum Glätten von frisch geschütteten Betonflächen, vorweigend bestehend aus einem waagerecht verstellbare Rahmen (1) mit Befestigungs- und Aufbaupunkten für:
a) Zwei Paar Traufein (5, 5', 5"; 6, 6', 6"), jeweils senkrecht am Ende einer Drehachse befestigt, welche Traufein die frisch geschüttete Betonfläche in rotierender Bewegung bearbeiten können, welche Achse schwenkbar der Senkrechten gegenüber ist, während die Arbeitsbereiche der Traufein sich überschneiden;
b) Einen motorischen Antriebsmechanismus (3), der die Traufelpaare (5, 5', 5"; 6, 6', 6"), synchron und in gegenläufiger Richtung drehen lassen kann;
c) Mittel, um die Drehaschen mit wenigstens einem bedienbaren Hebel (20, 25) in eine gewünschte Schwenkung der Senkrechten gegenüber zu versetzen;
d) Einen Sitz (2), von dem aus der Hebel (20, 25) (die Hebel) und der motorische Antriebsmechanismus (3) bedient werden können; e) Mittel (17, 18), um jedes Traufelpaar (5, 5', 5"; 6, 6', 6"), dem Rahmen (1) gegenüber höhenmäßig einzustellen, dadurch gekennzeichnet, daß:
f) eine der Antriebsachsen (8) der beiden Traufelpaare (5, 5', 5"; 6, 6', 6") mit einem Hebel (20) der Senkrechten gegenüber in einer quer zur geraden Fortgangsbewegung verlaufenden Ebene verstellbar ist;
g) die zweite Antriebsachse (7) der beiden Traufelpaare mit einem zweiten Hebel (25) in jede gewünschte Position der Senkrechten gegenüber einstellbar ist und
h) zwischen dem Antriebsmotor (3) und dem Mechanismus der Drehachsen (7, 8) der beiden Traufelpaare (5, 5', 5"; 6, 6', 6") eine Kupplung
(16) vorhanden ist, die bei einem gewissen und bestimmten zu übertragenden Moment angreift.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Kupplung (16) eine Zentrifugalkupplung ist.
3. Vorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß beide Antriebsachsen (7, 8) der Traufelpaare (5, 5', 5"; 6, 6', 6") über eine Übertragungsmechanik (9, 10) durch selbstspannende gezackte Riemen (12,13) von einer gemeinsamen Antriebsachse (11) aus hinter der Kupplung (16) synchron angetrieben werden.
4. Vorrichtung nach einem oder mehreren der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die in einer Richtung bewegliche Achse (8) durch den Hebel (Handhebel) (20) und durch das damit gelenkig verbundene und miteinander gelenkige Stangensystem (22, 21, 23) und die Klappachse (24) über das Zahnradgetriebe (10) einstellbar ist und die in beiden Richtungen gegenüber der senkrechten Position beweglichen Achse (7) durch den Einstellhebel (Handhebel) (25) und das erste gelenkig verbundene Stangensystem (27, 26, 28) und die Achse (29) in einer Richtung einstellbar ist und über eine zusätzlich damit verbundene Stange (31), den Hebel (33) und das Zahnradgeriebe (9) in einer Richtung senkrecht dazu ebenfalls einstellbar ist.
5. Vorrichtung nach Anspruch 1-3, dadurch gekennzeichnet, daß das Zahnradgetriebe (10) mit der Achse (8) über einen Bowdenzug in einer senkrechten Ebene kippbar ist und das Getriebe (9) mit der Achse (7) über zwei Bowdenzüge in zwei senkrecht aufeinander stehenden Ebenen kippbar ist.
EP86201522A 1985-09-16 1986-09-04 Maschine zum Glätten von Betonoberflächen Expired EP0215517B1 (de)

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
NL8502520 1985-09-16
NL8502520A NL8502520A (nl) 1985-09-16 1985-09-16 Machine voor het gladmaken van betonoppervlakken.

Publications (2)

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

Family

ID=19846556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86201522A Expired EP0215517B1 (de) 1985-09-16 1986-09-04 Maschine zum Glätten von Betonoberflächen

Country Status (4)

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

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
DE3662287D1 (en) 1989-04-13
ATE41196T1 (de) 1989-03-15
EP0215517A1 (de) 1987-03-25

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