WO1991002845A1 - Finishing device for a concrete screeding apparatus - Google Patents

Finishing device for a concrete screeding apparatus Download PDF

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Publication number
WO1991002845A1
WO1991002845A1 PCT/CA1990/000254 CA9000254W WO9102845A1 WO 1991002845 A1 WO1991002845 A1 WO 1991002845A1 CA 9000254 W CA9000254 W CA 9000254W WO 9102845 A1 WO9102845 A1 WO 9102845A1
Authority
WO
WIPO (PCT)
Prior art keywords
finishing
finishing device
concrete
generally
screed
Prior art date
Application number
PCT/CA1990/000254
Other languages
French (fr)
Inventor
Roger Rouillard
Original Assignee
Roger Rouillard
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 Roger Rouillard filed Critical Roger Rouillard
Publication of WO1991002845A1 publication Critical patent/WO1991002845A1/en

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
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/30—Tamping or vibrating apparatus other than rollers ; Devices for ramming individual paving elements
    • E01C19/34—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight
    • E01C19/40—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers
    • E01C19/402—Power-driven rammers or tampers, e.g. air-hammer impacted shoes for ramming stone-sett paving; Hand-actuated ramming or tamping machines, e.g. tampers with manually hoisted dropping weight adapted to impart a smooth finish to the paving, e.g. tamping or vibrating finishers the tools being hand-guided
    • 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
    • E04F21/241—Elongated smoothing blades or plates, e.g. screed apparatus
    • E04F21/242—Elongated smoothing blades or plates, e.g. screed apparatus with vibrating means, e.g. vibrating screeds

Definitions

  • the present invention relates to concrete screeding appara ⁇ tus, and more particularly to a finishing device for such screeding apparatus.
  • An object of the present invention is to provide a finishing device for a concrete screeding apparatus which will be easy to use and economical to manufacture.
  • Another object of the present invention is to provide a finishing device for a concrete screeding apparatus which can be easily dismantled for cleaning purposes.
  • Still another object of the present invention is to provide a portable lightweight finishing device for a concrete screeding apparatus.
  • Yet another object of the present is to provide a finishing device for a concrete screeding apparatus allowing the user to screed and level in a single step.
  • finishing device comprising:
  • finishing portion being generally larger than said horizontal planar bottom surface, and is made of a resilient material and being placed after said trailing edge on the freshly screeded concrete; said finishing portion being secured to said screed by said securing portion.
  • finishing device can be either secured to the screed or adjusted vertically from same, so as to control the levelling.
  • the present invention contemplates a finishing device including a finishing portion and a securing portion, the finishing portion being larger than the horizontal planar bottom surface and is made of a resilient material such as rubber.
  • the finishing device being secured to the screeding apparatus via the securing portion.
  • Figure 1 is a perspective view of a concrete screed embodying the present invention.
  • Figure 2 is a enlarged cross-section of the concrete screed of Figure 1.
  • Figure 3 is a side partial elevational view of the finishing device according to present invention.
  • Figure 4 is a cross-section view taken along line 4-4 of figure 1.
  • the screed 5 shown in the drawings comprises a generally horizontal planar bottom plate 10 and a generally vertical plate 15 generally perpendicular to said plate 10.
  • Said horizontal plate 10 has a leading 20 edge and a trailing 25 edge.
  • the generally vertical plate 15 is used to push and spread the freshly poured concrete generally referred to as number 7, the said horizontal planar plate 10 is used to press down and partially smooth the concrete to obtain the surface generally referred as number 30 and finally, the finishing device 35 according to the present invention is used to further smooth said surface 30.
  • the screed 5 is also provided with vibrator means 37 such as elements placed in a spaced relation of the generally vertical plate 15.
  • vibrator means 37 such as elements placed in a spaced relation of the generally vertical plate 15.
  • the edges 40 of the horizontal planar bottom plate 10 are preferably rounded so as to prevent the otherwise square corners of same from penetrating into the freshly poured concrete and making unsightly marks.
  • those marks are rapidly and easily erased as it will be hereinafter explained.
  • support means In order to pull the screed 5 against the freshly poured concrete 7 in the direction of the arrow Fl, support means generally referred as number 45 and 50 extend outwardly and upwardly from said vertical planar plate 15. Said supports 45 and 50 are preferably adjustable and sufficiently long to suit and accommodate the operator.
  • the supports 45 and 50 are preferably secured to the screed by means of bolts and nuts 52 so that the operator may dismantle said supports 45 and 50 from said screed and to facilitate moving of said screed from place to place before and after it is used.
  • the horizontal plate 10 and the vertical plate 15 may be manufactured from a single piece of metal such as aluminum by means of an extrusion process.
  • Another way to manufacture the longitudinally extending screed generally referred to as 5 would be to weld, bolt or fix together a first vertical plate to a second horizontal plate.
  • Said horizontal plate 15 is preferably curved as shown at 55 in figures 2 and 4 to improve the spreading of the concrete 7. It is to be understood that other similar shapes for said front portion may be used.
  • the right level of vibration of the vibrator means 35 should be chosen so as to ensure that the entire flat horizontal plate 15 remains in continuous contact with the concrete to be screeded. Typical values of said vibration would vary between 9500 and 11000 cycles per minute.
  • Said device comprises a finishing portion 60 and a securing portion 65.
  • these two portions are unitary and made of a resilient material such as rubber.
  • the securing portion 65 comprises a plurality of openings 70 in the upper portion thereof so as to receive securing bolts 75 or the like.
  • the ends 62 of said finishing portion 60 are generally convex to improve the smoothing of surface 30. These ends 62 will help removing
  • the finishing portion 60 further comprises a structural reinforcing means 80 located on its lower portion thereof.
  • this reinforcing means 80 may comprise a steel plate 85 fixed by known means such as bolts or screws 90 or directly molded into the rubber. This reinforcing means will increase the weight of the finishing portion 60 so as to further smooth the freshly screeded surface 30 by damping down the vibratory movement caused by the vibrator means 37.
  • a similar reinforcing means 95 is preferably provided to the securing portion 65 in order to increase the strength of that portion.
  • the reinforcing means 95 is provided with the plurality of openings 70.
  • Said securing portion is detachably secured to the screed in the upper portion of the generally vertical plate 15.
  • the finishing portion (see figure 4) of the finishing device 35 may comprise a lifting device 100, which includes a wire 102 secured to the reinforcing means 80 via securing means such as bolts 105 via side wires 103.
  • This lifting device comprises a pair of sliding elements 110 slidably engaging the supports 45 and 50 and provided with a locking nuts such as bolts and wing nuts 115.
  • the dimension of the sliding members being slightly larger than the cross- section of the supports 45 and 50 for easy movement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)

Abstract

The present invention relates to a concrete screeding apparatus (5), and more particularly to a finishing device for such concrete screeding apparatus of the type including a generally horizontal planar bottom plate (10) having a leading edge (20) and a trailing edge (25); a vertical plate (15) generally perpendicular to the bottom plate (10) is disposed adjacent the leading edge (20). The finishing device (35) comprises a finishing portion (60) and a securing portion (65). The finishing portion (60) being generally larger than the horizontal planar bottom plate (10) and is made of a resilient material. The securing portion (65) being secured to said concrete screeding apparatus (5). In a preferred embodiment, the securing portion (65) and the finishing portion (60) are unitary.

Description

FINISHING DEVICE FOR A CONCRETE SCREEDING APPARATUS
FIELD OF THE INVENTION
The present invention relates to concrete screeding appara¬ tus, and more particularly to a finishing device for such screeding apparatus.
DESCRIPTION OF PRIOR ART
For many years, tools for smoothing freshly poured concrete have been developed. Some of which are manually driven while others are motor driven. Typically, leveling of concrete is done once the screeding has been completed, then, a worker positions himself so as to smooth the concrete freshly screeded by moving a leveling apparatus along the concrete surface. This method is slow and labor intensive.
An example of such machine is disclosed in U.S. patent no. 2,386,662 (Crock). This machine is intended to be used upon the surface of a slab which has already been subjected to a leveling and preliminary surfacing treatment and comprises two elongated concrete surface smoothing members which are longitudinally moved.
Despite the fact that this apparatus works in accordance with its objects, its size does not allow easy anoeuvering. Furthermore, since the surface has already been levelled (column 1, line 29 of the specification of the previous patent) , the screeding and the levelling are not accomplished in a single step, therefore, additional delays are experienced by the workers. OBJECTS OF THE PRESENT INVENTION
It is a general object of the present invention to provide a finishing device for a concrete screeding apparatus which will overcome the above described drawbacks.
An object of the present invention is to provide a finishing device for a concrete screeding apparatus which will be easy to use and economical to manufacture.
Another object of the present invention is to provide a finishing device for a concrete screeding apparatus which can be easily dismantled for cleaning purposes.
Still another object of the present invention is to provide a portable lightweight finishing device for a concrete screeding apparatus.
Yet another object of the present is to provide a finishing device for a concrete screeding apparatus allowing the user to screed and level in a single step.
SUMMARY OF THE INVENTION -
These and other objects of the present invention will be obtained generally by means of a finishing device for a screeding apparatus of the type including:
- a generally horizontal planar bottom surface having a leading edge and a trailing edge; a generally vertical surface generally perpendicular to said bottom surface disposed adjacent said leading edge;
- vibrating means mounted on said concrete screed;
- at least one support member attached to said concrete screed; said finishing device comprising:
- a finishing portion and a securing portion; said finishing portion being generally larger than said horizontal planar bottom surface, and is made of a resilient material and being placed after said trailing edge on the freshly screeded concrete; said finishing portion being secured to said screed by said securing portion.
An important aspect of the present invention resides in the case with which the finishing device can be either secured to the screed or adjusted vertically from same, so as to control the levelling.
More particularly, the present invention contemplates a finishing device including a finishing portion and a securing portion, the finishing portion being larger than the horizontal planar bottom surface and is made of a resilient material such as rubber. The finishing device being secured to the screeding apparatus via the securing portion.
DESCRIPTION OF DRAWINGS
The invention possesses other objects features or advantages, some of which, with the foregoing, will be set forth in the following description of the preferred form of the invention, which is illustrated in the drawings accompanying and forming part of the specification.
Figure 1 is a perspective view of a concrete screed embodying the present invention.
Figure 2 is a enlarged cross-section of the concrete screed of Figure 1. Figure 3 is a side partial elevational view of the finishing device according to present invention.
Figure 4 is a cross-section view taken along line 4-4 of figure 1.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
The screed 5 shown in the drawings comprises a generally horizontal planar bottom plate 10 and a generally vertical plate 15 generally perpendicular to said plate 10. Said horizontal plate 10 has a leading 20 edge and a trailing 25 edge.
The generally vertical plate 15 is used to push and spread the freshly poured concrete generally referred to as number 7, the said horizontal planar plate 10 is used to press down and partially smooth the concrete to obtain the surface generally referred as number 30 and finally, the finishing device 35 according to the present invention is used to further smooth said surface 30.
The screed 5 is also provided with vibrator means 37 such as elements placed in a spaced relation of the generally vertical plate 15. The edges 40 of the horizontal planar bottom plate 10 are preferably rounded so as to prevent the otherwise square corners of same from penetrating into the freshly poured concrete and making unsightly marks. However, with the use of the finishing device 35 according to the present invention, those marks are rapidly and easily erased as it will be hereinafter explained.
In order to pull the screed 5 against the freshly poured concrete 7 in the direction of the arrow Fl, support means generally referred as number 45 and 50 extend outwardly and upwardly from said vertical planar plate 15. Said supports 45 and 50 are preferably adjustable and sufficiently long to suit and accommodate the operator.
Furthermore, the supports 45 and 50 are preferably secured to the screed by means of bolts and nuts 52 so that the operator may dismantle said supports 45 and 50 from said screed and to facilitate moving of said screed from place to place before and after it is used.
The horizontal plate 10 and the vertical plate 15 may be manufactured from a single piece of metal such as aluminum by means of an extrusion process. Another way to manufacture the longitudinally extending screed generally referred to as 5 would be to weld, bolt or fix together a first vertical plate to a second horizontal plate.
Said horizontal plate 15 is preferably curved as shown at 55 in figures 2 and 4 to improve the spreading of the concrete 7. It is to be understood that other similar shapes for said front portion may be used.
The right level of vibration of the vibrator means 35 should be chosen so as to ensure that the entire flat horizontal plate 15 remains in continuous contact with the concrete to be screeded. Typical values of said vibration would vary between 9500 and 11000 cycles per minute.
Having now described one embodiment of a concrete screeding apparatus, the finishing device 35 according.to the present invention will be described.
Said device comprises a finishing portion 60 and a securing portion 65. In a preferred embodiment, these two portions are unitary and made of a resilient material such as rubber. The securing portion 65 comprises a plurality of openings 70 in the upper portion thereof so as to receive securing bolts 75 or the like. The ends 62 of said finishing portion 60 are generally convex to improve the smoothing of surface 30. These ends 62 will help removing
BSTITUTE SHEET of the unsightly marks made by the plate 10.
The finishing portion 60 further comprises a structural reinforcing means 80 located on its lower portion thereof. With reference to figure 3, this reinforcing means 80 may comprise a steel plate 85 fixed by known means such as bolts or screws 90 or directly molded into the rubber. This reinforcing means will increase the weight of the finishing portion 60 so as to further smooth the freshly screeded surface 30 by damping down the vibratory movement caused by the vibrator means 37.
A similar reinforcing means 95 is preferably provided to the securing portion 65 in order to increase the strength of that portion. In this case, the reinforcing means 95 is provided with the plurality of openings 70. Said securing portion is detachably secured to the screed in the upper portion of the generally vertical plate 15.
The finishing portion (see figure 4) of the finishing device 35 may comprise a lifting device 100, which includes a wire 102 secured to the reinforcing means 80 via securing means such as bolts 105 via side wires 103. This lifting device comprises a pair of sliding elements 110 slidably engaging the supports 45 and 50 and provided with a locking nuts such as bolts and wing nuts 115. The dimension of the sliding members being slightly larger than the cross- section of the supports 45 and 50 for easy movement. When the operator wishes to raise the finishing device from the surface to be smoothed, he simply exerces the movement shown by the arrow F2 on the sliding elements 110, raising therefore the portion 60, and then, locks said sliding elements 110 to the proper position. To lower the finishing, the opposite movement is exerced on the sliding members 110.
While there is shown and described herein certain specific structure embodying the" invention, it will be manifest to those skilled in the art that various modifications and rearrangements of the parts may be made without departing from the spirit and scope of the underlying invention concept and that the same is not limited to the particular forms herein shown and described except insofar as indicated by the scope of the appended claims. For example, the finishing device has been shown attached to a particular embodiment of a concrete screed. However, it must be understood that the present invention can be used with slight modification to other type of screeds.
LIST OF ELEMENTS
5: screed
7: freshly poured concrete
10 horizontal planar bottom plate
15 vertical plate
20 leading edge
25 trailing edge
30 smoothed concrete surface
35 finishing device
37 vibrator means
40 horizontal planar bottom edges
45 support means
50 support means
52 bolts and wing nuts
55 vertical curved portion
60 finishing portion
62 finishing portion ends
65 securing portion
70 openings
75 securing bolts
80 structural reinforcing means
85 steel plate
90 bolts or screws
95 reinforcing means
TUTE SHEET 100: lifting device
102: wire
103: side wires
105: bolts 110: sliding.elements
115: bolts and wing nuts

Claims

1. A finishing device for a concrete screed apparatus of the type including:
- a generally horizontal planar bottom surface having a leading edge and a trailing edge; a generally vertical surface generally perpendicular to said bottom surface disposed adjacent said leading edge;
- vibrating means mounted on said concrete screed;
- at least one support member attached to said concrete screed;
said finishing device comprising:
- a finishing portion and a securing portion; said finishing portion being generally larger than said horizontal planar bottom surface and is made of a resilient material and being placed after said trailing edge on the freshly screeded concrete; said finishing portion being secured to said screed by said securing portion.
2. A finishing device according to claim 1, wherein the said finishing portion and said securing portion are unitary.
3. A finishing device according to claim 1 or 2, wherein the finishing portion is made of a rubber.
4. A finishing device according to claim 1, wherein the ends of said finishing portion are generally convex.
5. A finishing device according to claim 1, wherein the finishing device further comprises structural reinforcing means placed on its lower portion thereof.
PCT/CA1990/000254 1989-08-24 1990-08-10 Finishing device for a concrete screeding apparatus WO1991002845A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA609346 1989-08-24
CA609,346 1989-08-24

Publications (1)

Publication Number Publication Date
WO1991002845A1 true WO1991002845A1 (en) 1991-03-07

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ID=4140498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1990/000254 WO1991002845A1 (en) 1989-08-24 1990-08-10 Finishing device for a concrete screeding apparatus

Country Status (3)

Country Link
AU (1) AU6159590A (en)
ES (1) ES2038953A6 (en)
WO (1) WO1991002845A1 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263715A (en) * 1992-01-09 1993-08-04 Leonard Alfred Edney Screed rail
US6695531B1 (en) * 2002-05-30 2004-02-24 Thomas Prescott Concrete slumping implement
FR2930961A1 (en) * 2008-05-06 2009-11-13 Didier Rapin Wall or floor covering e.g. tiled floor, joints forming device for building site, has packing to remove remaining material and excess material from gaps, and vibrating unit to vibrate pressing unit to aid penetration of material in gaps
CN113235888A (en) * 2021-05-06 2021-08-10 苏州方石科技有限公司 Vibrating plate, ground leveling robot and control method of ground leveling robot
US11621662B2 (en) 2016-10-06 2023-04-04 Black & Decker Inc. Battery and motor system for replacing internal combustion engine
US11658546B2 (en) 2019-11-08 2023-05-23 Milwaukee Electric Tool Corporation Battery-powered stand-alone motor unit
US11791687B2 (en) 2019-12-23 2023-10-17 Milwaukee Electric Tool Corporation Battery-powered stand-alone motor unit
US12040732B2 (en) 2018-08-28 2024-07-16 Milwaukee Electric Tool Corporation Battery-powered stand-alone motor unit

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2278501B1 (en) * 2005-06-20 2008-07-16 Jose Llorens Selles PROCEDURE AND DEVICES FOR PLACING TILES.
WO2009112596A1 (en) 2008-03-14 2009-09-17 Sanchez Gonzales Jesus Underwater leveller

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR752642A (en) * 1932-06-23 1933-09-27 Salviam Soc Device for smoothing concrete, asphalt or other coatings
CH436373A (en) * 1966-02-10 1967-05-31 Routiere Et D Entreprise Gener Machine for spreading a semi-liquid grout on a surface with irregularities
CA1232151A (en) * 1987-07-09 1988-02-02 Roger Rouillard Concrete screed
US4798494A (en) * 1987-10-28 1989-01-17 Allen Engineering Corporation Floating vibrational screed

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR752642A (en) * 1932-06-23 1933-09-27 Salviam Soc Device for smoothing concrete, asphalt or other coatings
CH436373A (en) * 1966-02-10 1967-05-31 Routiere Et D Entreprise Gener Machine for spreading a semi-liquid grout on a surface with irregularities
CA1232151A (en) * 1987-07-09 1988-02-02 Roger Rouillard Concrete screed
US4798494A (en) * 1987-10-28 1989-01-17 Allen Engineering Corporation Floating vibrational screed

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263715A (en) * 1992-01-09 1993-08-04 Leonard Alfred Edney Screed rail
US6695531B1 (en) * 2002-05-30 2004-02-24 Thomas Prescott Concrete slumping implement
FR2930961A1 (en) * 2008-05-06 2009-11-13 Didier Rapin Wall or floor covering e.g. tiled floor, joints forming device for building site, has packing to remove remaining material and excess material from gaps, and vibrating unit to vibrate pressing unit to aid penetration of material in gaps
US11621662B2 (en) 2016-10-06 2023-04-04 Black & Decker Inc. Battery and motor system for replacing internal combustion engine
US12040732B2 (en) 2018-08-28 2024-07-16 Milwaukee Electric Tool Corporation Battery-powered stand-alone motor unit
US11658546B2 (en) 2019-11-08 2023-05-23 Milwaukee Electric Tool Corporation Battery-powered stand-alone motor unit
US11791687B2 (en) 2019-12-23 2023-10-17 Milwaukee Electric Tool Corporation Battery-powered stand-alone motor unit
CN113235888A (en) * 2021-05-06 2021-08-10 苏州方石科技有限公司 Vibrating plate, ground leveling robot and control method of ground leveling robot

Also Published As

Publication number Publication date
ES2038953A6 (en) 1993-08-01
AU6159590A (en) 1991-04-03

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