NL2033220B1 - Vibratory screed device with a quick release mechanism - Google Patents

Vibratory screed device with a quick release mechanism Download PDF

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Publication number
NL2033220B1
NL2033220B1 NL2033220A NL2033220A NL2033220B1 NL 2033220 B1 NL2033220 B1 NL 2033220B1 NL 2033220 A NL2033220 A NL 2033220A NL 2033220 A NL2033220 A NL 2033220A NL 2033220 B1 NL2033220 B1 NL 2033220B1
Authority
NL
Netherlands
Prior art keywords
screed
vibrating
coupling piece
finishing device
side profiles
Prior art date
Application number
NL2033220A
Other languages
Dutch (nl)
Inventor
Van Olst Theo
Rene Roger De Campognollle Ralph
Van Rijckevorsel Patrick
Original Assignee
Bouwmachinefabriek Lievers B V
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 Bouwmachinefabriek Lievers B V filed Critical Bouwmachinefabriek Lievers B V
Priority to NL2033220A priority Critical patent/NL2033220B1/en
Priority to PCT/NL2023/050517 priority patent/WO2024076236A1/en
Application granted granted Critical
Publication of NL2033220B1 publication Critical patent/NL2033220B1/en

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Classifications

    • 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
    • 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
    • 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
    • E04G21/06—Solidifying concrete, e.g. by application of vacuum before hardening
    • E04G21/063—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools
    • E04G21/066—Solidifying concrete, e.g. by application of vacuum before hardening making use of vibrating or jolting tools acting upon the surface of the concrete, whether or not provided with parts penetrating the concrete

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

Abstract

A vibratory screed device (1) comprises a frame with a drive motor (9) and a vibratory body (62). A screed beam (8) is releasably connected to the frame via a coupling member (7) with a lever (29) 5 having a clamping surface (53) that is connected to a rotation body (51). The lever (29) can be rotated around a locking axis (41) between a release position in which the rounded clamping surface (53) is placed at a distance from a rear groove (25) in the beam (8) and a locking position in which the rounded clamping surface (53) is pressed into the rear groove (25). The electric motor (9) can be mounted on the screed beam (8) via a reduction gear (60). 10 Fig. 8

Description

P6112485NL
Vibratory screed device with a quick release mechanism
Technical field
The present invention relates to a vibratory screed device comprising a frame with two spaced- apart side profiles that are with their lower ends attached to a coupling member, a drive motor, a vibrating body connected to the motor and to the coupling member, and a screed beam releasably connected to the coupling member, the screed beam having upper connector part with a rear groove extending in a length direction of the beam, the coupling member comprising a rounded clamping surface, that can releasably engage with the rear groove.
The invention also relates to an assembly of a vibratory screed device with a first and second screed beam of different dimensions and/or different cross sections.
Background
Such a screed device is known from EP 0 995 859. The known screed device comprises a vibrating screed beam for levelling freshly poured concrete surfaces, with an oblique front surface and a concave rear surface. The screed beam can be attached to a frame that comprises handlebars and a vibratory motor, in the desired orientation via a wing nut. During transport of the device to a building site, and for moving the device to various locations on the building site, for instance to different levels of a building that is constructed, the vibratory screed device should be easily placed in a compact configuration. To properly treat diverse types of concrete and to handle surfaces having different dimensions, easy exchangeability of the screed bar is essential. it is an object of the present invention to provide a vibratory screed device that is of a compact construction. It is a further object to provide a screed device that can be rapidly placed in a compact configuration and in which the screed bar is easily exchangeable for another bar or can be easily reoriented on the coupling member. In is again an object to provide a screed device in which the screed bar is securely coupled to the vibratory body.
Summary
A vibratory screed device according to the invention comprises a clamping surface that is connected to a rotation body, the rotation body being movable by a lever that is rotatable around a locking axis between a release position in which the rounded clamping surface is placed at a distance from the rear groove and a locking position in which the rounded clamping surface is pressed into the rear groove.
By using the clamping force of the excentric rotation body, a rapid release and connection of the screed beam is achieved that remains rigidly fixed when subjected to the vibrations that are generated by the motor and the vibrating body and that are passed on to the screed beam via the coupling member. The screed beam can be rapidly detached from the coupling member for transport to the building site, or when moving the screed device on the building site, for instance using a building elevator. Also, during levelling of a concrete surface, the screed beam can be rapidly reoriented on the frame with either a sloping profile part or a concave profile part extending to the front or can be exchanged for a beam with a larger or smaller beam length. It is also possible to rapidly connect two frames with vibratory motors, each frame having a respective coupling member and respective side profiles, to a single screed beam of large dimensions.
The locking axis may be situated parallel to the length direction of the screed beam, the lever and the rotation body extending substantially from one side profile to the other, along a rear side of the screed beam, and being operable by foot.
A lever in the form of a foot-operated bracket of large size, allows exchange of the screed beam without bending over of the operating person, which improves working conditions for the operator.
The proper positioning and locking of the lever can be easily visually verified. in the transport position of the screed device, the lever does not extend beyond the width of the side profiles.
In an embodiment, an electric motor is mounted on top of the coupling member. Placement of the motor directly on top of the coupling member results in a compact device with an efficient transfer of the vibrations that are generated by the motor. The motor is preferably connected to the vibrating body via a reduction gear. This allows the motor frequency to be set to between 4000 and 8000 rpm.
In an embodiment, the lower ends of the side profiles are connected to the coupling member via a profile section of elastomeric material. This allows effective isolation of the upper frame parts and the handlebars from the vibrations in the screed bar.
The side profiles may at their top ends be attached to handlebars in a pivoting connection. By disconnecting the screed bar and pivoting the handlebars parallel to the side profiles, the screed device can be placed in a compact transport and storage configuration.
The side profiles mays at their upper ends be mutually attached by a transverse gripping bar. The gripping bar can be used to hold the screed device when attaching or releasing the screed bar and forms a protection for the battery and/or the motor drive, for instance when the screed device is laid down during transport.
One of the side profiles may be provided with a parking leg, which is with an upper end hingeably connected to the side profile to be pivotable between a position in which the parking leg is parallel to the side profile and a parking position in which the leg extends at an angle to the side profile.
During a pause in the work in progress, the screed device can be parked in the upright position by extending the parking leg. The levelling operation can be resumed by pivoting the parking leg back to its parallel position.
The side profiles can near their upper ends comprise a connector for connecting to a releasable battery unit or to a connector of a power supply. The battery unit may be a rechargeable 12V of 24 V
Hthium-ion battery. Alternatively, the connected can attach to a power supply that is situated in the workspace of the screed device, or that is comprised of a portable power supply pack carried on the back of the operator.
Brief Description of the Drawings
An embodiment of a vibratory screed device according to the invention will, by way of non-limiting example, be described with reference to the accompanying drawings. in the drawings:
Fig. 1 shows a perspective view of an embodiment of a vibratory screed device according to the invention,
Fig. 2 shows a rear detail of the screed beam and the coupling member of the device of fig. 1,
Fig. 3 shows a perspective view of the frame of the device of fig. 1 in the transport position,
Fig. 4 shows a detachable battery pack of the device of fig. 1,
Fig. 5 shows a rear view of a parking leg on the device of fig. 1, in the parking position,
Fig. 6 shows an embodiment of an excentric clamping mechanism according to the invention,
Fig. 7 shows a perspective partial view of a preferred embodiment of a screed device according to the invention,
Fig. 8 shows a cross-sectional view of the screed device of figure 7, with the coupling member in the release position,
Fig. 9 shows a cross-sectional view of the screed device of figure 7, with the coupling member in the locking position, and
Fig. 10 shows a perspective view of an assembly of electric motor, reduction gear and vibratory body according to the invention.
Detailed Description
Figure 1 shows a vibratory screed device 1 according to the invention, comprising a frame 2 having two side profiles 3, 4. The side profiles 3,4 are with their lower ends connected to a coupling member 7, that releasably engages with a screed beam 8. An electric motor 9 is connected to a vibrating body 10 for generating vibrations in the beam 8. At their upper ends, the side profiles 3,4 are interconnected via a transverse bar 12 and support a battery 13 for powering the electric motor 9. Two handlebars 15,16 are connected to the upper parts of the side profiles 3,4 in a hinge connection 17, 18. At the lower ends of the side profiles 3, 4, elastomeric sections 20, 21, isolate the side profiles 3,4 and handlebars 15, 16 from the vibrating beam 8.
Figure 2 shows a rear view of the lower part of the side profiles 3,4 and the coupling member 7. The coupling member 7 has a front plate 22 that is received with a rounded front surface in a front groove of an upper part 24 of the beam 8. The coupling member 7 engages with the top surface 23 of the beam 8 and is provided with a hinging rear part 26 having a rounded edge 27 extending in a length direction L of the beam 8 and received in the rounded rear groove 25 of the beam. A rotatable cam 28 carries a bracket 29 that can be operated by pressing down on it by foot so that it is placed in the locking position which is shown in the figure.
Figure 3 shows the device 1 while it is placed in the transport configuration, with the bream 8 detached and the handlebars 15,16 placed alongside the side profiles 3,4. The coupling member 7 and bracket 29 do not extend beyond the handlebars 15, 16 in a sideways direction, so that a compact transport configuration is obtained and the device can be easily moved to, or from the building site where it is used, or can be moved around the building site.
Figure 4 shows the rechargeable battery 31 that is releasably connected to a connector 30 for providing power to the electric motor 9. Instead of a battery 31, the connector 30 can be coupled to a complementary connector of a power source that may be provided on site, such as a mains connection, a generator or a battery pack carried by a user of the device 1.
Figure 5 shows a parking leg 35 with a support foot 36, that is hingingly connected to the side profile 3, and that can be extended at an angle to provide a parking position in which the device 1 is supported in the upright position.
Figure 6 shows an alternative embodiment of a coupling member having an excentric rotation body 40 that can pivot around axis 41 by operation of a lever 42. Pressing down on the lever 42 engages the rounded clamping surface 43 with the sidewall of the rear groove in the screed beam 8 to lock the beam against the coupling member 7.
Figure 7 shows an embodiment in which the foot-operated bracket 29 drives two levers 50, 51 in rotation about the axis 41. The levers 50, 51 each have a cam surface that engages with pins 54, 55 on the bracket 29. Pressing down on the bracket 29, rotates the rounded clamping bodies 52, 53 via the levers 50, 51 into clamping contact with the rounded rear groove on the screed beam 8. At the same time, the rounded front edge 19 of the coupling member 7 is pulled into the rounded front groove of the screed beam 8, placing the coupling member in the locking position in which the beam 8 is securely coupled to the vibrating motor 9.
Figure 8 shows a cross-sectional view of the screed device 1 with the lever 29 in the upward release position, in which the rounded clamping bodies 52, 53 are placed at a distance from the rounded rear groove 25.
The electric motor 9 is connected via a reduction gear 60 to the drive axis 61 of the vibratory body 62. The housing 65 of the assembly of the electric motor 9, the reduction gear 61 and the vibratory body 62, is mounted directly on top of the coupling member 7 so that vibrations of the body 62 that are induced by the rotation of the motor 9, are efficiently transferred to the screed beam 8.
Figure 9 shows a cross-sectional view of the screed device 1 of figure 8 with the lever 29 in the downward locking position, pressing the rounded clamping bodies 52, 53 into contact with the rear groove 25 in the upper connector part 24 of the beam 8.
Figure 10 shows a perspective view of the electric motor 9, the reduction gear 60, and the vibratory bodies 62, 63. The relative position of the bodies 62,63 can be varied by rotation of one or both bodies about the axis 61 upon release of a wing nut 64, to set the intensity of the vibrations that are generated by the joint rotation of the bodies around the axis 61.

Claims (11)

ConclusiesConclusions 1 Vibrerend afwerktoestel (1) dat eenframe (2) omvat met twee op afstand van elkaar 5 geplaatste zijprofielen (3, 4} die met hun onderste uiteinden zijn bevestigd aan een koppelstuk (7),1 Vibrating finishing device (1) comprising a frame (2) with two spaced side profiles (3, 4} which are attached at their lower ends to a coupling piece (7), een aandrijfmotor (9), een vibrerend lichaam (62, 63) dat is verbonden met de aandrijfmotor (9)a drive motor (9), a vibrating body (62, 63) connected to the drive motor (9) en met het koppelstuk (7), en een afwerkbalk (8) die losneembaar is verbonden met het koppelstuk (7), waarbij de afwerkbalk (8) is voorzien van een bovenste gedeelte (24) met een achtergroef (25) die zich uitstrekt in een lengterichting L van de balk (8), en waarbij het koppelstukand with the coupling piece (7), and a screed beam (8) detachably connected to the coupling piece (7), the screed beam (8) being provided with an upper portion (24) with a rear groove (25) extending into a longitudinal direction L of the beam (8), and where the coupling piece (7) een afgerond klemoppervlak (43, 52, 53) omvat, dat losneembaar contact kan maken met de achtergroef (25),(7) includes a rounded clamping surface (43, 52, 53) releasably contacting the rear groove (25), met het kenmerk dat het klemoppervlak (43, 52, 53) is verbonden met een rotatielichaam (28, 40, 50, 51), waarbij het rotatielichaam kan worden bewogen door een hendel (29, 42) die kan worden gedraaid om een vergrendelingsas (41) tussen een ontgrendelde stand waarin het afgeronde klemoppervlak (43, 52, 53) is geplaatst op een afstand van de achtergroef (25) en een vergrendelde positie waarin het afgeronde klemoppervlak (43, 52, 53) wordt gedrukt in de achtergroef (25).characterized in that the clamping surface (43, 52, 53) is connected to a rotation body (28, 40, 50, 51), the rotation body being movable by a lever (29, 42) which can be rotated about a locking axis ( 41) between an unlocked position in which the rounded clamping surface (43, 52, 53) is positioned at a distance from the rear groove (25) and a locked position in which the rounded clamping surface (43, 52, 53) is pressed into the rear groove (25 ). 2 Vibrerend afwerktoestel (1) volgens conclusie 1, waarbij de vergrendelingsas (41) zich bevindt parallel aan de lengterichting L van de afwerkbalk (8), waarbij de hendel (29, 42) en het rotatielichaam(28, 40, 50, 51) zich grotendeels uitstrekken tussen de zijprofielen (3, 4), langs een achterzijde van de afwerkbalk (8), en kunnen worden bediend met de voet.A vibrating finishing device (1) according to claim 1, wherein the locking axis (41) is located parallel to the longitudinal direction L of the finishing bar (8), wherein the handle (29, 42) and the rotating body (28, 40, 50, 51) extend largely between the side profiles (3, 4), along a rear side of the screed (8), and can be operated with the foot. 3 Vibrerend afwerktoestel (1) volgens conclusie 1 of 2, waarbij de motor (9) een elektrische motor is die is gemonteerd bovenop het koppelstuk (7).A vibrating finishing device (1) according to claim 1 or 2, wherein the motor (9) is an electric motor mounted on top of the coupling piece (7). 4 Vibrerend afwerktoestel (1) volgens conclusie 3, waarbij de elektrische motor is verbonden met het vibrerende lichaam (62, 83), door middel van een reducerend tandwielmechaniek (60).A vibrating finishing device (1) according to claim 3, wherein the electric motor is connected to the vibrating body (62, 83) by means of a reducing gear mechanism (60). 5 Vibrerend afwerktoestel (1) dat een frame (2) omvat met twee op afstand van elkaar geplaatste zijprofielen (3, 4) die met hun onderste uiteinden zijn bevestigd aan een koppelstuk (7), een aandrijfmotor (9), een vibrerend lichaam dat is verbonden met de motor (9) en met het koppelstuk (7), en een afwerkbalk (8), die losmaakbaar is verbonden met het koppelstuk (7), waarbij de afwerkbalk (8) is voorzien van een bovenste aansluitonderdeel (24) met een achtergroef (25) die zich uitstrekt in een lengterichting L van de balk (8), en waarbij het koppelstuk (7) een afgerond klemoppervlak (43, 52, 53) omvat, dat losmaakbaar contact kan maken met de achtergroef (25),5 Vibrating finishing device (1) comprising a frame (2) with two spaced side profiles (3, 4) attached at their lower ends to a coupling piece (7), a drive motor (9), a vibrating body is connected to the motor (9) and to the coupling piece (7), and a screed (8), which is releasably connected to the coupling piece (7), wherein the screed (8) is provided with an upper connection part (24) with a rear groove (25) extending in a longitudinal direction L of the beam (8), and wherein the coupling piece (7) comprises a rounded clamping surface (43, 52, 53) capable of releasably contacting the rear groove (25), met het kenmerk dat een elektrische motor (9) is gemonteerd bovenop het koppelstuk (7) en is verbonden met het vibrerende lichaam (62, 63), door middel van een reducerend tandwielmechaniek (60). characterized in that an electric motor (9) is mounted on top of the coupling piece (7) and is connected to the vibrating body (62, 63), by means of a reducing gear mechanism (60). 6 Vibrerend afwerktoestel (1) volgens een van de voorgaande conclusies, waarbij de onderste uiteinden van de zijprofielen (3, 4) zijn verbonden met het koppelstuk (7) door middel van een profielgedeelte (20, 21) van elastomeer materiaal. 6 Vibrating finishing device (1) according to any of the preceding claims, wherein the lower ends of the side profiles (3, 4) are connected to the coupling piece (7) by means of a profile part (20, 21) of elastomeric material. 7 Vibrerend afwerktoestel (1) volgens een van de voorgaande conclusies, waarbij de zijprofielen (3, 4) aan hun bovenste uiteinden zijn bevestigd aan een handgreep (15, 16) in een draaiende verbinding (17, 18). Vibrating finishing device (1) according to any one of the preceding claims, wherein the side profiles (3, 4) are attached at their upper ends to a handle (15, 16) in a rotating connection (17, 18). 8 Vibrerend afwerktoestel (1) volgens een van de voorgaande conclusies, waarbij de zijprofielen (3, 4) aan hun bovenste uiteinden onderling met elkaar zijn verbonden door middel van een dwars geplaatste grijperstang (12).8 Vibrating finishing device (1) according to any of the preceding claims, wherein the side profiles (3, 4) are mutually connected at their upper ends by means of a transversely placed gripper rod (12). 9 Vibrerend afwerktoestel (1) volgens een van de voorgaande conclusies, waarbij een van de zijprofielen (3, 4) een parkeerstandaard (35) omvat, die met een bovenste uiteinde scharnierend is bevestigd aan het zijprofiel om te kunnen worden gedraaid tussen een stand waarin de parkeerstandaard parallel ligt aan het zijprofiel en een parkeerstand waarin de standaard (35) zich uitstrekt onder een hoek ten opzichte van het zijprofiel. 9 Vibrating finishing device (1) according to any one of the preceding claims, wherein one of the side profiles (3, 4) comprises a parking stand (35), which is hinged at an upper end to the side profile to enable it to be rotated between a position in which the parking stand is parallel to the side profile and a parking position in which the stand (35) extends at an angle to the side profile. 10 Vibrerend afwerktoestel (1) volgens een van de voorgaande conclusies, waarbij de zijprofielen (3, 4) nabij hun bovenste uiteinden een verbindingsstuk (30) omvatten om een verbinding te maken met een los te maken batterij-eenheid (31) of met een connector van een stroomtoevoer. Vibrating finishing device (1) according to any one of the preceding claims, wherein the side profiles (3, 4) comprise near their upper ends a connecting piece (30) for connecting to a detachable battery unit (31) or to a connector of a power supply. 11 Samenstel dat een vibrerend afwerktoestel (1) omvat volgens een van de voorgaande conclusies en ten minste een tweede afwerkbalk met andere afmetingen en/of een andere dwarsdoorsnede dan de afwerkbalk (8).Assembly comprising a vibrating finishing device (1) according to any one of the preceding claims and at least a second finishing beam with different dimensions and/or a different cross-section than the finishing beam (8).
NL2033220A 2022-10-04 2022-10-04 Vibratory screed device with a quick release mechanism NL2033220B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
NL2033220A NL2033220B1 (en) 2022-10-04 2022-10-04 Vibratory screed device with a quick release mechanism
PCT/NL2023/050517 WO2024076236A1 (en) 2022-10-04 2023-10-04 Vibratory screed device with a quick release mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2033220A NL2033220B1 (en) 2022-10-04 2022-10-04 Vibratory screed device with a quick release mechanism

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NL2033220B1 true NL2033220B1 (en) 2024-04-16

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5540519A (en) * 1995-01-31 1996-07-30 Weber; Doug J. Portable vibratory wet screed
EP0995859A1 (en) 1998-10-19 2000-04-26 Bouwmachinefabrik Lievers B.V. Vibratory screed device for levelling freshly poured concrete surfaces
US20060133896A1 (en) * 2004-12-21 2006-06-22 Schmitt Michael W Screed bar for vibratory screed

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5540519A (en) * 1995-01-31 1996-07-30 Weber; Doug J. Portable vibratory wet screed
EP0995859A1 (en) 1998-10-19 2000-04-26 Bouwmachinefabrik Lievers B.V. Vibratory screed device for levelling freshly poured concrete surfaces
US20060133896A1 (en) * 2004-12-21 2006-06-22 Schmitt Michael W Screed bar for vibratory screed

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