EP2292844A2 - Cutter for generating a road marking and road marking - Google Patents

Cutter for generating a road marking and road marking Download PDF

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Publication number
EP2292844A2
EP2292844A2 EP10164541A EP10164541A EP2292844A2 EP 2292844 A2 EP2292844 A2 EP 2292844A2 EP 10164541 A EP10164541 A EP 10164541A EP 10164541 A EP10164541 A EP 10164541A EP 2292844 A2 EP2292844 A2 EP 2292844A2
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EP
European Patent Office
Prior art keywords
cutting
convex
area
concave
roadway
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Granted
Application number
EP10164541A
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German (de)
French (fr)
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EP2292844B2 (en
EP2292844A3 (en
EP2292844B1 (en
Inventor
Stefan Abresch
Christian Berning
Michael Schulz
Cyrus Barimani
Guenter Haehn
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Wirtgen GmbH
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Wirtgen GmbH
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    • 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
    • E01C23/09—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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0993—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 forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming or installing surface markings or signals in the paving, e.g. grooving for striping or for producing rumble strips, forming marker-receiving recesses
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F9/00—Arrangement of road signs or traffic signals; Arrangements for enforcing caution
    • E01F9/50—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users
    • E01F9/529—Road surface markings; Kerbs or road edgings, specially adapted for alerting road users specially adapted for signalling by sound or vibrations, e.g. rumble strips; specially adapted for enforcing reduced speed, e.g. speed bumps

Definitions

  • the invention relates to a cutting body for producing a lane marking with a rotation body rotatable about a rotation axis, which can accommodate a plurality of cutting elements, which define a cutting curve, wherein the cutting curve forms a convex cutting area in the direction of the axis of rotation.
  • the invention further relates to a roadway marking with a plurality of depressions introduced into the roadway surface, the depressions having two lateral longitudinal walls running in the longitudinal direction of the roadway, which proceed from the roadway surface into a floor area, and wherein the recess is bounded by two transverse walls extending transversely to the roadway longitudinal direction is.
  • road markings are also referred to as Wilsontelstsammlung.
  • a road milling machine with a cutting body which has a Fräswalzenrohr as a rotary body.
  • the roll surface is barrel-shaped and convex in the direction of the axis of rotation. It picks up chisel holders in which chisels can be exchanged.
  • the bits are equipped with carbide tips, which serve as cutting elements. Corresponding to the convex curvature of the roller surface, the carbide tips form a convex cutting curve in the direction of the axis of rotation of the milling roller tube. This convex cutting curve results during the rotation of the rotating body.
  • the rotating cutting body is delivered in the direction of the road surface to be processed, then the chisels cut a recess from the roadway.
  • a concave trough is generated transversely to the longitudinal extent of the roadway. Due to the circular cross-section of the body of revolution, the recess has a concave shape even in the longitudinal direction.
  • To produce a lane marking a plurality of depressions are milled from one another at equal pitch into the lane. The road marking thus forms a desired geometric unevenness in the road. When rolling over with a vehicle tire, noises and vibrations occur, which are perceived by the driver and signal him, for example, leaving the road.
  • the lane markings thus have the function and task of delivering an acoustic and haptic warning signal.
  • this noise source is sometimes disturbed by the environment adjacent to the roadway.
  • Another disadvantage of the known road markings results when driving over a two-wheeler.
  • the two-wheeler is laterally offset, which can then trigger dangerous steering corrections for the driver. If rainwater accumulates in the depressions, then the driving situation of the bicycle may become unstable.
  • the object relating to the cutting body is achieved by indirectly or directly adjoining the convex cutting area on both sides of a concave cutting area.
  • the task relating to the lane marking is achieved in that the longitudinal walls of the depressions have a convexly curved region.
  • depressions can be milled for road markings, in which the road surface is continuously transferred over the convex portion in the concave bottom.
  • the geometry of the lane marking also allows for a problem-free driving over a two-wheeler and that a nuisance in the driver's side is reduced.
  • the convex portion of the recess With the convex portion of the recess, the volume formed by the recess is reduced. Thus, it can collect less water, which significantly reduces the risk of instability of a two-wheeler on wet roads.
  • At least one of the concave cutting regions terminates at the end facing away from the convex cutting region in an end region parallel to the axis of rotation. In this way, a harmonious transition to the road surface is created in the depression, which withstands particularly robust mechanical stresses.
  • the radius of the convex cutting region is between 200 mm and 400 mm, and / or that the radius of the concave cutting region is between 400 mm and 800 mm, then corresponding geometries arise at the depression, which with reduced influence on the Tire guide cause sufficient noise.
  • a conceivable invention alternative is such that the rotary body has a mounting surface, are mounted on the tool holder, which can receive the cutting elements interchangeable, that the mounting surface has a convex cutting portion associated with the convex mounting portion and the concave cutting portion associated concave mounting portion.
  • the cutting curve can be generated in a simple manner using the same bit holder and cutting elements.
  • a cutting body according to the invention can be characterized in that a fastening flange is arranged in the hollow region enclosed by the rotational body and that the fastening flange is coupled to the rotational body at the inner wall section assigned to the convex cutting region.
  • the fastening flange is thus fixed in the strength-optimized manner in the thickened section of the rotational body formed by the convex cutting region.
  • the transverse walls have a concave area, which is indirectly or directly transferred to the road surface. Then arises when hitting the wheel on the transverse wall a sufficiently high sound pressure.
  • the depressions can to form the lane marking each other in the same Dividing grid be spaced or it is conceivable that the individual wells immediately adjacent.
  • FIG. 1 shows a cutting body having a roller-shaped rotary body 10.
  • the rotary body 10 is tubular and has a cylindrical inner receptacle which is formed by the jacket of the rotary body 10.
  • a mounting flange 11 is arranged with fastening receptacles 12, to which the output shaft of a drive train can be flanged.
  • the jacket of the rotary body 10 forms a support member 13 with a barrel-shaped circumferential mounting surface 14.
  • the mounting surface 14 is composed of a central convex mounting portion 14.2 and two laterally adjoining thereto concave mounting portions 14.1 together.
  • the concave fastening sections 14.1 pass directly into the convex fastening section 14.2.
  • On the two mounting portions 14.1 and 14.2 chisel holder changing systems, consisting of a base part and a replaceable fastened thereto bit holder 20, mounted.
  • the base parts are welded to the fastening sections 14.1, 14.2.
  • the base parts are offset from one another in the circumferential direction, so that clearing and loading turns result, which run helically on the fastening sections 14.1, 14.2.
  • bit holders 20 are welded directly onto the fastening sections 14.1, 14.2, so that base parts can be dispensed with.
  • the bit holder 20 have chisel recordings in which Chisel 21, preferably round shank chisel, can be interchangeable recorded.
  • the chisels 21 are equipped with cutting elements which define a cutting curve 15 when the rotation body 10 rotates about the axis of rotation R.
  • the cutting curve 15 forms a kind of envelope.
  • FIG. 1 illustrates the cutting curve 15 according to the configuration of the mounting portions 14.1, 14.2 a convex cutting area 15.2 and laterally adjoining concave cutting areas 15.1.
  • the radius R 1 of the concave cutting areas 15.1 is preferably between 400 mm and 800 mm.
  • the particularly preferred ratio R 1 : R 2 of about 2: 1 can be set.
  • lane markings consisting of depressions 31 arranged in a row one behind the other, can be cut into the carriageway 30.
  • the resulting geometry of the recess 31 is in FIG. 2 shown enlarged.
  • the depression 31 has, complementary to the cutting curve 15, a concave bottom 31.2 transversely to the roadway longitudinal direction, from which two convex longitudinal walls 31.1 rise on both sides.
  • the longitudinal walls 31.1 merge into the roadway surface 32.
  • the transversely extending to the roadway longitudinal extent transverse walls 31.3 are concave according to the roll circumference.
  • FIGS. 3 to 8 various design variants of road markings are shown, which are each formed of juxtaposed recesses 31.
  • the depressions 31 are produced by cutting bodies which, in principle, conform to the construction FIG. 1 correspond.
  • FIG. 3 shows an embodiment variant in which the cutting body delivered perpendicular to the road surface 32 and after the cutter body its deepest feed position has been restored before it is offset by the desired pitch in the roadway longitudinal direction, etc.
  • FIG. 4 shows one too FIG. 3 changed approach.
  • the cutting body is not reset above the level of the road surface 32, but continuously delivered during the feed movement along the roadway longitudinal direction to the deepest delivery position and returned to the level of the road surface, so that the recesses 31 are lined up directly.
  • the feed and reset movement can be coordinated with the feed motion in such a way that also produce an alternating arrangement of convex and concave curved areas of the recess in the roadway longitudinal direction. It can thereby be achieved that each individual depression of the series of recesses receives a similar curve in the longitudinal section, as the cross section.
  • FIG. 5a shows a cutting body 10 according to the prior art, which generates with its chisels 21 a cylindrical envelope. Accordingly, can be with this cutting body 10 road markings 31 milled with partially cylindrical geometry, such as FIG. 5b shows. That the FIG. 5b taken enlarged detail acc. FIG. 5c shows that results in this road markings 31 a sharp 90 ° transition between the road surface 32 and the subsequent longitudinal wall 31.1.
  • FIG. 6a shows a further cutting body 10 according to the prior art (for example according to the US 6,547,484 B2 ).
  • the chisels 21 produce a spherical cutting curve. This results in this cutting body 10 road markings 31 in FIG. 6b shown form.
  • FIG. 6c shows one of FIG. 6b taken detail. It can be seen that the transition from the road surface 32 in the longitudinal side walls 31.1 relative to the variant according to FIGS. 5b and 5c is significantly flattened, but still forms a relatively steep transition.
  • Figure 7a shows for improved comparison the cutting body 10 gem.
  • FIG. 7b circa FIG. 2 and FIG. 7c shows that FIG. 7b Detail marked with VIIc enlarged. It can be clearly seen that according to the invention an improved transition between the road surface 32 and the longitudinal wall 31.1 can be designed. This advantage is based on the FIGS. 8 to 11 further clarified.
  • FIG. 8 is the gem.
  • FIG. 6b resulting contour of the lane marking 31 drawn as a curve in a coordinate system.
  • FIG. 10 shows analogously the curve of the pavement marking acc. FIG. 7b .

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

Abstract

The unit has a drum shaped rotary unit (10) rotatable about a rotation axis, where the rotary unit receives cutting elements defining a cutting curve (15). The cutting curve forms a convex cutting region (15.2) in direction of the rotation axis, where a respective concave cutting region (15.1) is indirectly or directly adjacent to the convex cutting region on both sides. A mounting surface comprises a convex mounting portion (14.2) associated with the convex cutting region and a concave mounting portion (14.1) associated with the concave cutting region. Independent claims are also included for the following: (1) a road marking comprising longitudinal walls transversely to longitudinal direction of the road (2) a rumble strip cutting apparatus comprising a rotary unit rotatable about a rotational axis (3) a method for cutting a rumble strip in a road surface.

Description

Die Erfindung betrifft einen Schneidkörper zur Erzeugung einer Fahrbahnmarkierung mit einem um eine Rotationsachse drehbaren Rotationskörper, der eine Vielzahl von Schneidelementen aufnehmen kann, die eine Schneidkurve festlegen, wobei die Schneidkurve in Richtung der Rotationsachse einen konvexen Schneidbereich bildet.The invention relates to a cutting body for producing a lane marking with a rotation body rotatable about a rotation axis, which can accommodate a plurality of cutting elements, which define a cutting curve, wherein the cutting curve forms a convex cutting area in the direction of the axis of rotation.

Die Erfindung betrifft weiterhin eine Fahrbahnmarkierung mit mehreren, in die Fahrbahnoberfläche eingebrachten Vertiefungen, wobei die Vertiefungen zwei seitliche, in Fahrbahnlängsrichtung verlaufende Längswände aufweist, die ausgehend von der Fahrbahnoberfläche, in einen Bodenbereich übergehen, und wobei die Vertiefung von zwei quer zur Fahrbahnlängsrichtung verlaufenden Querwänden begrenzt ist. Solche Fahrbahnmarkierungen werden auch als Rüttelstreifen bezeichnet.The invention further relates to a roadway marking with a plurality of depressions introduced into the roadway surface, the depressions having two lateral longitudinal walls running in the longitudinal direction of the roadway, which proceed from the roadway surface into a floor area, and wherein the recess is bounded by two transverse walls extending transversely to the roadway longitudinal direction is. Such road markings are also referred to as Rüttelstreifen.

Aus der US 6,547,484 B2 ist eine Straßenfräsmaschine mit einem Schneidkörper bekannt, der als Rotationskörper ein Fräswalzenrohr aufweist. Die Walzenoberfläche ist tonnenförmig gestaltet und in Richtung der Rotationsachse konvex gewölbt. Sie nimmt Meißelhalter auf, in denen Meißel auswechselbar aufgenommen werden können. Die Meißel sind mit Hartmetallspitzen ausgestattet, die als Schneidelemente dienen. Entsprechend der konvexen Wölbung der Walzenoberfläche bilden die Hartmetallspitzen in Richtung der Rotationsachse des Fräswalzenrohrs eine konvexe Schneidkurve. Diese konvexe Schneidkurve ergibt sich während der Drehung des Rotationskörpers. Wenn der drehende Schneidkörper in Richtung der zu bearbeitenden Fahrbahnoberfläche zugestellt wird, dann schneiden die Meißel eine Vertiefung aus der Fahrbahn aus. Entsprechend der konvexen Wölbung der Schneidkurve wird quer zur Längserstreckung der Fahrbahn entsprechend eine konkave Muldung erzeugt. Aufgrund des kreisrunden Querschnitts des Rotationskörpers hat die Vertiefung auch in Längserstreckung eine konkave Form. Zur Erzeugung einer Fahrbahnmarkierung werden mehrere Vertiefungen zueinander in gleicher Teilung beabstandet in die Fahrbahn eingefräst. Die Fahrbahnmarkierung bildet somit eine gewollte geometrische Unebenheit in der Fahrbahn. Beim Überrollen mit einem Fahrzeugreifen entstehen Geräusche und Vibrationen, die vom Fahrer wahrgenommen werden und die ihm beispielsweise ein Verlassen der Fahrbahn signalisieren.From the US 6,547,484 B2 a road milling machine with a cutting body is known, which has a Fräswalzenrohr as a rotary body. The roll surface is barrel-shaped and convex in the direction of the axis of rotation. It picks up chisel holders in which chisels can be exchanged. The bits are equipped with carbide tips, which serve as cutting elements. Corresponding to the convex curvature of the roller surface, the carbide tips form a convex cutting curve in the direction of the axis of rotation of the milling roller tube. This convex cutting curve results during the rotation of the rotating body. If the rotating cutting body is delivered in the direction of the road surface to be processed, then the chisels cut a recess from the roadway. Corresponding to the convex curvature of the cutting curve, a concave trough is generated transversely to the longitudinal extent of the roadway. Due to the circular cross-section of the body of revolution, the recess has a concave shape even in the longitudinal direction. To produce a lane marking, a plurality of depressions are milled from one another at equal pitch into the lane. The road marking thus forms a desired geometric unevenness in the road. When rolling over with a vehicle tire, noises and vibrations occur, which are perceived by the driver and signal him, for example, leaving the road.

Die Fahrbahnmarkierungen haben somit die Funktion und Aufgabe der Abgabe eines akustischen und haptischen Warnsignals. Diese Geräuschquelle wird aber von der an die Fahrbahn anschließende Umgebung mitunter als störend empfunden. Ein weiterer Nachteil der bekannten Fahrbahnmarkierungen ergibt sich beim Überfahren mit einem Zweirad. Dabei wird das Zweirad seitlich versetzt, was beim Fahrer dann gefährliche Lenkkorrekturen auslösen kann. Wenn sich in den Vertiefungen Regenwasser ansammelt, dann kann zudem die Fahrsituation des Zweirades instabil werden.The lane markings thus have the function and task of delivering an acoustic and haptic warning signal. However, this noise source is sometimes disturbed by the environment adjacent to the roadway. Another disadvantage of the known road markings results when driving over a two-wheeler. The two-wheeler is laterally offset, which can then trigger dangerous steering corrections for the driver. If rainwater accumulates in the depressions, then the driving situation of the bicycle may become unstable.

Es ist Aufgabe der Erfindung, einen Schneidkörper bereitzustellen, mit dem sich Fahrbahnmarkierungen mit verbesserten Anwendungseigenschaften erzeugen lassen.It is an object of the invention to provide a cutting body with which lane markings can be produced with improved application properties.

Es ist weiterhin Aufgabe der Erfindung, solche Fahrbahnmarkierungen bereitzustellen.It is a further object of the invention to provide such road markings.

Die den Schneidkörper betreffende Aufgabe wird dadurch gelöst, dass sich beidseitig an den konvexen Schneidbereich jeweils ein konkaver Schneidbereich mittelbar oder unmittelbar anschließt.The object relating to the cutting body is achieved by indirectly or directly adjoining the convex cutting area on both sides of a concave cutting area.

Die die Fahrbahnmarkierung betreffende Aufgabe wird dadurch gelöst, dass die Längswände der Vertiefungen einen konvex gewölbten Bereich aufweisen.The task relating to the lane marking is achieved in that the longitudinal walls of the depressions have a convexly curved region.

Mit dem erfindungsgemäßen Schneidkörper können Vertiefungen für Fahrbahnmarkierungen gefräst werden, bei denen die Fahrbahnoberfläche stetig über den konvexen Bereich in den konkaven Boden übergeleitet wird. Dies hat den Vorteil, dass der Reifen eines Fahrzeuges sanfter in die Vertiefung gelangt. Hierdurch wird eine Reduzierung der Geräuschentwicklung erreicht, wobei jedoch noch ein ausreichender Schallpegel und insbesondere ein ausreichendes haptisches Warnsignal zur Erzeugung von Aufmerksamkeit beim Fahrer entsteht.With the cutting body according to the invention depressions can be milled for road markings, in which the road surface is continuously transferred over the convex portion in the concave bottom. This has the advantage that the tire of a vehicle passes more gently into the depression. As a result, a reduction of the noise is achieved, but still sufficient sound level and in particular a sufficient haptic warning signal for generating attention in the driver arises.

Die Geometrie der Fahrbahnmarkierung ermöglicht auch ein problemloseres Überfahren mit einem Zweirad und dass ein den Fahrer verunsichernder Seitenverzug vermindert wird. Darüber hinaus wird mit dem konvexen Bereich der Vertiefung das von der Vertiefung gebildete Volumen verkleinert. Somit kann sich darin weniger Wasser sammeln, was die Gefahr für die Instabilität eines Zweirades bei nasser Fahrbahn deutlich verringert.The geometry of the lane marking also allows for a problem-free driving over a two-wheeler and that a nuisance in the driver's side is reduced. In addition, with the convex portion of the recess, the volume formed by the recess is reduced. Thus, it can collect less water, which significantly reduces the risk of instability of a two-wheeler on wet roads.

Gemäß einer bevorzugten Ausgestaltungsvariante des Schneidkörpers kann es vorgesehen sein, dass wenigstens einer der konkaven Schneidbereiche an dem dem konvexen Schneidbereich abgewandten Ende in einem zur Rotationsachse parallelen Endbereich ausläuft. Auf diese Weise wird in der Vertiefung ein harmonischer Übergang zur Fahrbahnoberfläche erzeugt, der besonders robust mechanischen Beanspruchungen widersteht.According to a preferred embodiment variant of the cutting body, it may be provided that at least one of the concave cutting regions terminates at the end facing away from the convex cutting region in an end region parallel to the axis of rotation. In this way, a harmonious transition to the road surface is created in the depression, which withstands particularly robust mechanical stresses.

Wenn vorgesehen ist, dass der Radius des konvexen Schneidbereichs zwischen 200 mm und 400 mm beträgt, und/oder dass der Radius des konkaven Schneidbereichs zwischen 400 mm und 800 mm beträgt, dann ergeben sich an der Vertiefung entsprechende Geometrien, die bei vermindertem Einfluss auf die Reifenführung eine ausreichende Geräuschentwicklung entstehen lassen.If it is provided that the radius of the convex cutting region is between 200 mm and 400 mm, and / or that the radius of the concave cutting region is between 400 mm and 800 mm, then corresponding geometries arise at the depression, which with reduced influence on the Tire guide cause sufficient noise.

Eine denkbare Erfindungsausalternative ist derart, dass der Rotationskörper eine Befestigungsfläche aufweist, auf der Werkzeughalter befestigt sind, die die Schneidelemente auswechselbar aufnehmen können, dass die Befestigungsfläche einen dem konvexen Schneidbereich zugeordneten konvexen Befestigungsabschnitt und einen dem konkaven Schneidbereich zugeordneten konkaven Befestigungsabschnitt aufweist. Mit einem solchen Rotationskörper kann die Schneidkurve auf einfache Weise unter Verwendung gleicher Meißelhalter und Schneidelemente erzeugt werden.A conceivable invention alternative is such that the rotary body has a mounting surface, are mounted on the tool holder, which can receive the cutting elements interchangeable, that the mounting surface has a convex cutting portion associated with the convex mounting portion and the concave cutting portion associated concave mounting portion. With such a rotary body, the cutting curve can be generated in a simple manner using the same bit holder and cutting elements.

Ein erfindungsgemäßer Schneidkörper kann dadurch gekennzeichnet sein, dass in dem von dem Rotationskörper umschlossenen Hohlbereich ein Befestigungsflansch angeordnet ist und dass der Befestigungsflansch an dem dem konvexen Schneidbereich zugeordneten Innenwandungsabschnitt an den Rotationskörper angekoppelt ist. Der Befestigungsflansch ist somit in dem durch den konvexen Schneidbereich gebildeten verdickten Abschnitt des Rotationskörpers festigkeitsoptimiert fixiert.A cutting body according to the invention can be characterized in that a fastening flange is arranged in the hollow region enclosed by the rotational body and that the fastening flange is coupled to the rotational body at the inner wall section assigned to the convex cutting region. The fastening flange is thus fixed in the strength-optimized manner in the thickened section of the rotational body formed by the convex cutting region.

Bei der erfindungsgemäßen Fahrbahnmarkierung kann es vorgesehen sein, dass der konvexe Bereich zumindest einer der Längswände in einen konkaven Bereich des Bodens übergeleitet ist und/oder dass der konvexe Bereich zumindest einer der Seitenwände in die Fahrbahnoberfläche übergeleitet ist. Auf diese Weise entstehen Vertiefungen, die die Seitenführung des Rades wenig beeinträchtigen.In the pavement marking according to the invention, provision can be made for the convex area of at least one of the longitudinal walls to be transferred into a concave area of the floor and / or for the convex area of at least one of the sidewalls to be transferred into the roadway surface. In this way, depressions that affect the side guide of the wheel little.

Denkbar ist es auch, dass die Querwände einen konkaven Bereich aufweisen, der mittelbar oder unmittelbar in die Fahrbahnoberfläche übergeleitet ist. Dann entsteht beim Auftreffen des Rades auf die Querwand ein ausreichend hoher Schalldruck. Die Vertiefungen können zur Bildung der Fahrbahnmarkierung zueinander in gleichem Teilungsraster beabstandet sein oder es ist denkbar, dass die einzelnen Vertiefungen unmittelbar aneinandergrenzen.It is also conceivable that the transverse walls have a concave area, which is indirectly or directly transferred to the road surface. Then arises when hitting the wheel on the transverse wall a sufficiently high sound pressure. The depressions can to form the lane marking each other in the same Dividing grid be spaced or it is conceivable that the individual wells immediately adjacent.

Die Erfindung wird im Folgenden anhand von in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:

Figur 1
einen Vertikalschnitt durch eine Fahrbahn und einen Schneid- körper,
Figur 2
einen Vertikalschnitt durch eine Fahrbahn,
Figuren 3 und 4
in schematischer Darstellung verschiedene Fahrbahn markierungen,
Figur 5a
einen Schneidkörper gemäß dem Stand der Technik in schema- tischer Seitenansicht,
Figuren 5b und 5c
eine Fahrbahnmarkierung, gefertigt mit einem Schneidkörper gem. Figur 5a,
Figur 6a
einen Schneidkörper gemäß dem Stand der Technik in schematischer Seitenansicht,
Figuren 6b und 6c
eine Fahrbahnmarkierung, gefertigt mit einem Schneidkörper gem. Figur 6a,
Figur 7a
den erfindungsgemäßen Schneidkörper gem. Figur 1 in schema- tischer Seitenansicht
Figuren 7b und 7c
eine Fahrbahnmarkierung, gefertigt mit einem Schneidkörper gem. Figur 7a,
Figur 8
die Kontur der Fahrbahnmarkierung gem. Figur 6b bzw. 6c in einem Koordinatensystem,
Figur 9
die 1. Ableitung der sich aus Figur 8 ergebenden Kurve,
Figur 10
die Kontur der Fahrbahnmarkierung gem. Figur 7b bzw. 7c in einem Koordinatensystem und
Figur 11
die 1. Ableitung der sich aus Figur 10 ergebenden Kurve.
The invention will be explained in more detail below with reference to the embodiment shown in the drawings. Show it:
FIG. 1
a vertical section through a roadway and a cutting body,
FIG. 2
a vertical section through a roadway,
FIGS. 3 and 4
in a schematic representation different road markings,
FIG. 5a
a cutting body according to the prior art in a schematic side view,
FIGS. 5b and 5c
a road marking, manufactured with a cutting body gem. FIG. 5a .
FIG. 6a
a cutting body according to the prior art in a schematic side view,
Figures 6b and 6c
a road marking, manufactured with a cutting body gem. FIG. 6a .
Figure 7a
the cutting body according to the invention. FIG. 1 in a schematic side view
FIGS. 7b and 7c
a road marking, manufactured with a cutting body gem. Figure 7a .
FIG. 8
the contour of the lane marking gem. FIG. 6b or 6c in a coordinate system,
FIG. 9
the 1st derivative of the FIG. 8 resulting curve,
FIG. 10
the contour of the lane marking gem. FIG. 7b or 7c in a coordinate system and
FIG. 11
the 1st derivative of the FIG. 10 resulting curve.

Figur 1 zeigt einen Schneidkörper, der einen walzenförmigen Rotationskörper 10 aufweist. Der Rotationskörper 10 ist rohrförmig ausgebildet und hat eine zylindrische Innenaufnahme, die von dem Mantel des Rotationskörpers 10 gebildet ist. In der Innenaufnahme ist ein Befestigungsflansch 11 mit Befestigungsaufnahmen 12 angeordnet, an den die Abtriebswelle eines Antriebsstranges angeflanscht werden kann. FIG. 1 shows a cutting body having a roller-shaped rotary body 10. The rotary body 10 is tubular and has a cylindrical inner receptacle which is formed by the jacket of the rotary body 10. In the inner receptacle, a mounting flange 11 is arranged with fastening receptacles 12, to which the output shaft of a drive train can be flanged.

Der Mantel des Rotationskörpers 10 bildet ein Tragteil 13 mit einer tonnenförmig umlaufenden Befestigungsfläche 14. Die Befestigungsfläche 14 setzt sich aus einem mittleren konvexen Befestigungsabschnitt 14.2 und zwei jeweils seitlich daran anschließenden konkaven Befestigungsabschnitten 14.1 zusammen. Dabei gehen die konkaven Befestigungsabschnitte 14.1 unmittelbar in den konvexen Befestigungsabschnitt 14.2 über. Auf den beiden Befestigungsabschnitten 14.1 und 14.2 sind Meißelhalterwechselsysteme, bestehend aus einem Basisteil und einem daran auswechselbar befestigbaren Meißelhalter 20, montiert. Dabei sind die Basisteile mit den Befestigungsabschnitten 14.1, 14.2 verschweißt. Die Basisteile sind zueinander in Umfangsrichtung versetzt angeordnet, so dass sich Räum- und Ladewenden ergeben, die spiralförmig auf den Befestigungsabschnitten 14.1, 14.2 verlaufen.The jacket of the rotary body 10 forms a support member 13 with a barrel-shaped circumferential mounting surface 14. The mounting surface 14 is composed of a central convex mounting portion 14.2 and two laterally adjoining thereto concave mounting portions 14.1 together. The concave fastening sections 14.1 pass directly into the convex fastening section 14.2. On the two mounting portions 14.1 and 14.2 chisel holder changing systems, consisting of a base part and a replaceable fastened thereto bit holder 20, mounted. The base parts are welded to the fastening sections 14.1, 14.2. The base parts are offset from one another in the circumferential direction, so that clearing and loading turns result, which run helically on the fastening sections 14.1, 14.2.

Denkbar ist auch eine Erfindungsausgestaltung, bei der die Meißelhalter 20 direkt auf die Befestigungsabschnitte 14.1, 14.2 aufgeschweißt sind, so dass auf Basisteile verzichtet werden kann. Die Meißelhalter 20 weisen Meißelaufnahmen auf, in denen Meißel 21, vorzugsweise Rundschaftmeißel, auswechselbar aufgenommen werden können. Die Meißel 21 sind mit Schneidelementen ausgestattet, die bei einer Drehung des Rotationskörpers 10 um die Drehachse R eine Schneidkurve 15 festlegen. Dabei bildet die Schneidkurve 15 eine Art Hüllkurve.Also conceivable is an embodiment of the invention, in which the bit holders 20 are welded directly onto the fastening sections 14.1, 14.2, so that base parts can be dispensed with. The bit holder 20 have chisel recordings in which Chisel 21, preferably round shank chisel, can be interchangeable recorded. The chisels 21 are equipped with cutting elements which define a cutting curve 15 when the rotation body 10 rotates about the axis of rotation R. The cutting curve 15 forms a kind of envelope.

Wie die Figur 1 veranschaulicht, bildet die Schneidkurve 15 entsprechend der Ausgestaltung der Befestigungsabschnitte 14.1, 14.2 einen konvexen Schneidbereich 15.2 und seitlich daran anschließende konkave Schneidbereiche 15.1. Der Radius R2 des konvexen Schneidbereichs 15.2 beträgt vorzugsweise zwischen 200 mm und 400 mm, im vorliegenden Fall ist R2 = 300 mm. Der Radius R1 der konkaven Schneidbereiche 15.1 beträgt vorzugsweise zwischen 400 mm und 800 mm. Damit kann beispielsweise das besonders bevorzugte Verhältnis R1 : R2 von ca. 2 : 1 eingestellt werden.As the FIG. 1 illustrates the cutting curve 15 according to the configuration of the mounting portions 14.1, 14.2 a convex cutting area 15.2 and laterally adjoining concave cutting areas 15.1. The radius R 2 of the convex cutting portion 15.2 is preferably between 200 mm and 400 mm, in the present case R 2 = 300 mm. The radius R 1 of the concave cutting areas 15.1 is preferably between 400 mm and 800 mm. Thus, for example, the particularly preferred ratio R 1 : R 2 of about 2: 1 can be set.

Mit dem Schneidkörper lassen sich Fahrbahnmarkierungen, bestehend aus linienförmig hintereinander angeordneten Vertiefungen 31, in die Fahrbahn 30 einfräsen.With the cutting body, lane markings, consisting of depressions 31 arranged in a row one behind the other, can be cut into the carriageway 30.

Die dabei entstehende Geometrie der Vertiefung 31 ist in Figur 2 vergrößert dargestellt. Wie diese Zeichnung erkennen lässt, weist die Vertiefung 31 komplementär zu der Schneidkurve 15 quer zur Fahrbahnlängsrichtung einen konkaven Boden 31.2 auf, von dem beidseitig zwei konvexe Längswände 31.1 aufsteigen. Die Längswände 31.1 gehen in die Fahrbahnoberfläche 32 über. Die quer zur Fahrbahnlängserstreckung verlaufenden Querwände 31.3 sind entsprechend dem Walzenumfang konkav gewölbt.The resulting geometry of the recess 31 is in FIG. 2 shown enlarged. As can be seen from this drawing, the depression 31 has, complementary to the cutting curve 15, a concave bottom 31.2 transversely to the roadway longitudinal direction, from which two convex longitudinal walls 31.1 rise on both sides. The longitudinal walls 31.1 merge into the roadway surface 32. The transversely extending to the roadway longitudinal extent transverse walls 31.3 are concave according to the roll circumference.

In den Figuren 3 bis 8 sind verschiedene Ausgestaltungsvarianten von Fahrbahnmarkierungen dargestellt, die jeweils aus aneinander gereihten Vertiefungen 31 gebildet sind. Dabei werden die Vertiefungen 31 von Schneidkörpern erzeugt, die prinzipiell der Konstruktion gemäß Figur 1 entsprechen.In the FIGS. 3 to 8 various design variants of road markings are shown, which are each formed of juxtaposed recesses 31. In this case, the depressions 31 are produced by cutting bodies which, in principle, conform to the construction FIG. 1 correspond.

Figur 3 zeigt eine Ausgestaltungsvariante, bei der der Schneidkörper senkrecht zur Fahrbahnoberfläche 32 zugestellt und nachdem der Schneidkörper seine tiefste Zustellposition erreicht hat wieder zurückgestellt wird, bevor er um die gewünschte Teilung in Fahrbahnlängsrichtung versetzt wird, usw. FIG. 3 shows an embodiment variant in which the cutting body delivered perpendicular to the road surface 32 and after the cutter body its deepest feed position has been restored before it is offset by the desired pitch in the roadway longitudinal direction, etc.

Figur 4 zeigt eine zu Figur 3 veränderte Vorgehensweise. Dabei wird der Schneidkörper nicht über das Niveau der Fahrbahnoberfläche 32 zurückgestellt, sondern während der Vorschubbewegung entlang der Fahrbahnlängsrichtung kontinuierlich bis zur tiefsten Zustellposition zugestellt und wieder auf das Niveau der Fahrbahnfläche zurückgestellt wird, so dass die Vertiefungen 31 unmittelbar aneinandergereiht sind. Dabei kann die Zustell- und Zurückstellbewegung derart mit der Vorschubbewegung koordiniert werden, dass in Fahrbahnlängsrichtung ebenfalls eine abwechselnde Anordung von konvex und konkav gekrümmten Bereichen der Vertiefung herzustellen. Dadurch kann erreicht werden, dass jede einzelne Vertiefung der Serie von Vertiefungen im Längsschnitt einen ähnlichen Kurvenverlauf erhält, wie der Querschnitt. FIG. 4 shows one too FIG. 3 changed approach. In this case, the cutting body is not reset above the level of the road surface 32, but continuously delivered during the feed movement along the roadway longitudinal direction to the deepest delivery position and returned to the level of the road surface, so that the recesses 31 are lined up directly. In this case, the feed and reset movement can be coordinated with the feed motion in such a way that also produce an alternating arrangement of convex and concave curved areas of the recess in the roadway longitudinal direction. It can thereby be achieved that each individual depression of the series of recesses receives a similar curve in the longitudinal section, as the cross section.

Figur 5a zeigt einen Schneidkörper 10 gemäß dem Stand der Technik, der mit seinen Meißeln 21 eine zylindrische Hüllkurve erzeugt. Dementsprechend lassen sich mit diesem Schneidkörper 10 Fahrbahnmarkierungen 31 mit teilzylinderförmiger Geometrie fräsen, wie Figur 5b zeigt. Das der Figur 5b entnommene vergrößerte Detail gem. Figur 5c zeigt, dass sich bei dieser Fahrbahnmarkierungen 31 ein schroffer 90° Übergang zwischen der Fahrbahnoberfläche 32 und der anschließenden Längswand 31.1 ergibt. FIG. 5a shows a cutting body 10 according to the prior art, which generates with its chisels 21 a cylindrical envelope. Accordingly, can be with this cutting body 10 road markings 31 milled with partially cylindrical geometry, such as FIG. 5b shows. That the FIG. 5b taken enlarged detail acc. FIG. 5c shows that results in this road markings 31 a sharp 90 ° transition between the road surface 32 and the subsequent longitudinal wall 31.1.

Figur 6a zeigt einen weiteren Schneidkörper 10 gemäß dem Stand der Technik (beispielsweise gemäß der US 6,547,484 B2 ). Dabei erzeugen die Meißel 21 eine ballige Schneidkurve. Es ergeben sich mit diesem Schneidkörper 10 Fahrbahnmarkierungen 31 der in Figur 6b gezeigten Form. FIG. 6a shows a further cutting body 10 according to the prior art (for example according to the US 6,547,484 B2 ). The chisels 21 produce a spherical cutting curve. This results in this cutting body 10 road markings 31 in FIG. 6b shown form.

Figur 6c zeigt ein der Figur 6b entnommenes Detail. Dabei ist erkennbar, dass der Übergang von der Fahrbahnoberfläche 32 in die Längsseitenwände 31.1 gegenüber der Variante nach Figuren 5b und 5c deutlich abgeflachter ist, jedoch immer noch einen relativ steilen Übergang bildet. FIG. 6c shows one of FIG. 6b taken detail. It can be seen that the transition from the road surface 32 in the longitudinal side walls 31.1 relative to the variant according to FIGS. 5b and 5c is significantly flattened, but still forms a relatively steep transition.

Figur 7a zeigt zur verbesserten Gegenüberstellung den Schneidkörper 10 gem. Figur 1. Figure 7a shows for improved comparison the cutting body 10 gem. FIG. 1 ,

Figur 7b entspricht in etwa Figur 2 und Figur 7c zeigt das der Figur 7b mit VIIc markierte Detail vergrößert. Es lässt sich deutlich erkennen, dass erfindungsgemäß ein verbesserter Übergang zwischen der Fahrbahnoberfläche 32 und der Längswand 31.1 gestaltet werden kann. Dieser Vorteil wird anhand der Figuren 8 bis 11 weiter verdeutlicht. In Figur 8 ist die sich aus dem Querschnitt gem. Figur 6b ergebende Kontur der Fahrbahnmarkierung 31 als Kurve in ein Koordinatensystem eingezeichnet. FIG. 7b circa FIG. 2 and FIG. 7c shows that FIG. 7b Detail marked with VIIc enlarged. It can be clearly seen that according to the invention an improved transition between the road surface 32 and the longitudinal wall 31.1 can be designed. This advantage is based on the FIGS. 8 to 11 further clarified. In FIG. 8 is the gem. FIG. 6b resulting contour of the lane marking 31 drawn as a curve in a coordinate system.

Figur 10 zeigt analog die Kurve der Fahrbahnmarkierung gem. Figur 7b. FIG. 10 shows analogously the curve of the pavement marking acc. FIG. 7b ,

Bildet man nun von diesen Kurven (gem. Figuren 8 und 10) die erste Ableitung, so ergeben sich die Kurven gem. Figuren 9 und 11. Es wird deutlich, dass sich mit der erfindungsgemäßen Fahrbahnmarkierung 31 ein stetiger Übergang von der Fahrbahnoberfläche 32 in die Längswand 31.1 verwirklichen lässt und diese Fahrbahnmarkierung 31 in ihrem Steigungsverlauf einer Sinuskurve folgt.If you now form these curves (acc. FIGS. 8 and 10 ) the first derivative, so the curves acc. FIGS. 9 and 11 , It becomes clear that a continuous transition from the roadway surface 32 into the longitudinal wall 31.1 can be realized with the road marking 31 according to the invention, and this road marking 31 follows in its gradient course a sinusoidal curve.

Demgegenüber verdeutlicht die Figur 9 den unstetigen Übergang zwischen der Fahrbahnoberfläche 32 und der Längsseitenwand 31.1.In contrast, illustrates the FIG. 9 the unsteady transition between the road surface 32 and the longitudinal side wall 31.1.

Claims (16)

Schneidkörper zur Erzeugung einer Fahrbahnmarkierung mit einem um eine Rotationsachse (R) drehbaren Rotationskörper (10), der eine Vielzahl von Schneidelementen (21) aufnehmen kann, die eine Schneidkurve (15) festlegen, wobei die Schneidkurve (15) in Richtung der Rotationsachse (R) einen konvexen Schneidbereich (15.2) bildet,
dadurch gekennzeichnet,
dass sich beidseitig an den konvexen Schneidbereich (15.2) jeweils ein konkaver Schneidbereich (15.1) mittelbar oder unmittelbar anschließt.A cutting body for producing a lane marking with a rotation body (10) rotatable about a rotation axis (R) and capable of accommodating a plurality of cutting elements (21) defining a cutting curve (15), the cutting curve (15) being oriented in the direction of the axis of rotation (R ) forms a convex cutting area (15.2),
characterized,
that both sides of the convex cutting region (15.2) in each case adjoins a concave cutting area (15.1) directly or indirectly. Schneidkörper nach Anspruch 1,
dadurch gekennzeichnet,
dass die Schneidkurve (15) an dem dem konvexen Schneidbereich (15.2) abgewandten Ende und relativ zur Rotationsachse eine Steigung aufweist, die gegen Null geht oder dort einen im Wesentlichen achsparallelen Verlauf aufweist.Cutting body according to claim 1,
characterized,
that the cutting curve (15) on the convex cutting region (15.2) facing away from the end and to the rotational axis has a slope relative, which tends to zero and there has a substantially axially parallel course. Schneidkörper nach Anspruch 1 oder Anspruch 2,
dadurch gekennzeichnet,
dass die Schneidkurve, oder die einzelnen Bereiche der Schneidkurve einer reellen Funktion, insbesondere einer trigonometrischen Funktion folgen.Cutting body according to claim 1 or claim 2,
characterized,
that the cutting curve or the individual regions of the cutting curve of a real function, especially a trigonometric function follow. Schneidkörper nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet,
dass der Radius (R2) des konvexen Schneidbereichs (15.2) zwischen 200 mm und 400 mm beträgt.Cutting body according to one of claims 1 to 3,
characterized,
that the radius (R 2) of the convex cutting region (15.2) is between 200 mm and 400 mm. Schneidkörper nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass der Radius (R1) des konkaven Schneidbereichs (15.1) zwischen 400 mm und 800 mm beträgt.Cutting body according to one of claims 1 to 4,
characterized,
that the radius (R 1) is of the concave cutting area (15.1) between 400 mm and 800 mm. Schneidkörper nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass der Rotationskörper (10) eine Befestigungsfläche (14) aufweist, auf der Werkzeughalter (20) befestigt sind, die die Schneidelemente (21) auswechselbar aufnehmen können,
dass die Befestigungsfläche (14) einen dem konvexen Schneidbereich (15.2) zugeordneten konvexen Befestigungsabschnitt (14.2) und einen dem konkaven Schneidbereich (15.1) zugeordneten konkaven Befestigungsabschnitt (14.1) aufweist.Cutting body according to one of claims 1 to 5,
characterized,
in that the rotary body (10) has a fastening surface (14) on which tool holders (20) are fastened which can receive the cutting elements (21) in an exchangeable manner,
comprises that the mounting surface (14) associated one of the convex cutting area (15.2) convex mounting portion (14.2) and the concave cutting area assigned (15.1) fixing concave section (14.1). Schneidkörper nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass der Rotationskörper (10) walzenförmig ausgebildet ist.Cutting body according to one of claims 1 to 6,
characterized,
that the rotary body (10) is cylindrical. Schneidkörper nach Anspruch 7,
dadurch gekennzeichnet,
dass in dem von dem Rotationskörper (10) umschlossenen Hohlbereich ein Befestigungsflansch (11) angeordnet ist und
dass der Befestigungsflansch (11) in dem dem konvexen Schneidbereich (15.2) zugeordneten Innenwandungsabschnitt an den Rotationskörper (10) angekoppelt ist.Cutting body according to claim 7,
characterized,
in that a fastening flange (11) is arranged in the hollow area enclosed by the rotary body (10) and
that the mounting flange (11) in which the convex cutting area (15.2) associated Innenwandungsabschnitt is coupled to the rotating body (10). Fahrbahnmarkierung mit mehreren, in die Fahrbahnoberfläche (32) eingebrachten Vertiefungen (31), wobei die Vertiefungen (31) zwei seitliche, in Fahrbahnlängsrichtung verlaufende Längswände (31.1) aufweist, die ausgehend von der Fahrbahnoberfläche (32), in einen Bodenbereich (31.2) übergehen, und wobei die Vertiefung (31) von zwei quer zur Fahrbahnlängsrichtung verlaufenden Querwänden (31.3) begrenzt ist,
dadurch gekennzeichnet,
dass die Längswände (31.1) quer zur Fahrbahnlängsrichtung einen konvex gewölbten Bereich aufweisen.Roadway marking with a plurality of depressions (31) introduced into the roadway surface (32), wherein the depressions (31) have two lateral longitudinal walls (31.1) running in the roadway longitudinal direction, which proceed from the roadway surface (32) to a floor area (31.2) , and wherein the depression (31) is delimited by two transverse walls (31.3) running transversely to the roadway longitudinal direction,
characterized,
that the longitudinal walls (31.1) have a convex region transverse to the roadway longitudinal direction. Fahrbahnmarkierung nach Anspruch 9,
dadurch gekennzeichnet,
dass der konvexe Bereich zumindest einer der Längswände (31.1) in einen konkaven Bereich des Bodens (31.3) übergeleitet ist.Road marking according to claim 9,
characterized,
in that the convex area of at least one of the longitudinal walls (31.1) is transferred into a concave area of the floor (31.3). Fahrbahnmarkierung nach Anspruch 9 oder 10,
dadurch gekennzeichnet,
dass der konvexe Bereich zumindest einer der Seitenwände (31.1) stetig in die Fahrbahnoberfläche (32) übergeleitet ist.Road marking according to claim 9 or 10,
characterized,
that the convex portion at least one of the side walls (31.1) is continuous in the road surface (32) is passed over. Fahrbahnmarkierung nach einem der Ansprüche 9 bis 11,
dadurch gekennzeichnet,
dass der Radius (R) des konvexen Bereichs zwischen 400 mm und 800 mm liegt.Road marking according to one of claims 9 to 11,
characterized,
that the radius (R) of the convex portion is between 400 mm and 800 mm. Fahrbahnmarkierung nach einem der Ansprüche 10 bis 12,
dadurch gekennzeichnet,
dass der konkave Bereich des Bodens (31.3) einen Radius zwischen 200 mm und 400 mm aufweist.A pavement marker according to any one of claims 10 to 12,
characterized,
that the concave area of the bottom (31.3) has a radius of between 200 mm and 400 mm. Fahrbahnmarkierung nach einem der Ansprüche 9 bis 13,
dadurch gekennzeichnet,
dass die Querwände (31.3) einen konkaven Bereich aufweisen, der mittelbar oder unmittelbar in die Fahrbahnoberfläche (32) übergeleitet ist.Road marking according to one of claims 9 to 13,
characterized,
in that the transverse walls (31.3) have a concave area which is indirectly or directly transferred into the roadway surface (32). Fahrbahnmarkierung nach einem der Ansprüche 9 bis 15,
dadurch gekennzeichnet,
dass die einzelnen Vertiefungen (31) unmittelbar aneinandergrenzen.A pavement marker according to any one of claims 9 to 15,
characterized,
that the individual recesses (31) adjoin one another. Fahrbahn mit einer Fahrbahnmarkierung,
gekennzeichnet nach einem der Ansprüche 9 bis 15.Roadway with a lane marking,
characterized according to any one of claims 9 to 15.
EP10164541.4A 2009-07-25 2010-06-01 Cutter for generating a road marking and road marking Active EP2292844B2 (en)

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US20110020063A1 (en) 2011-01-27
EP2292844B2 (en) 2020-07-29
EP2292844A3 (en) 2012-03-28
CA2707289C (en) 2014-06-10
JP5049373B2 (en) 2012-10-17
US8491219B2 (en) 2013-07-23
DE102009034766A1 (en) 2011-02-03
CA2707289A1 (en) 2011-01-25
CN101962931A (en) 2011-02-02
CN201908249U (en) 2011-07-27
JP2011026949A (en) 2011-02-10
EP2292844B1 (en) 2014-06-11

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