EP2623673A1 - Processing machine for the production of guide devices for the blind - Google Patents

Processing machine for the production of guide devices for the blind Download PDF

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Publication number
EP2623673A1
EP2623673A1 EP13000463.3A EP13000463A EP2623673A1 EP 2623673 A1 EP2623673 A1 EP 2623673A1 EP 13000463 A EP13000463 A EP 13000463A EP 2623673 A1 EP2623673 A1 EP 2623673A1
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EP
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Prior art keywords
processing machine
rear wheels
chassis
machine according
hubs
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EP13000463.3A
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German (de)
French (fr)
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EP2623673B1 (en
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Gottfried Kirchmair
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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

Definitions

  • the invention relates to a mobile processing machine for the production of guide devices in the form of parallel longitudinal grooves in traffic areas for visually impaired persons and a method for providing such Blindenleit drivingen.
  • a three-wheeled road milling machine known at the chassis of a milling drum and a drive motor by means of a spindle is arranged manually adjustable in height.
  • a traction drive can be coupled with the drive motor. Since the device is only intended to produce a recess for a marking strip, for example a guideline or blocking line, the length of the milling drum is significantly shorter than the width of the vehicle, and the milling drum lies in front of the rear axle.
  • the wheels are individually height-adjustable mounted in the chassis, they can therefore each lowered or raised so far that the milling drum is arranged substantially horizontally or at the desired inclination in the chassis.
  • tactile control devices are provided in a manner that grooved concrete slabs are laid on embedded in the sidewalk or in the traffic area foundations, being used at intersections concrete slabs with longitudinal and transverse grooves on which thus only about square elevations remain.
  • the concrete slabs generally have seven parallel grooves of about 3 cm width with approximately equal width intermediate webs, so that such a concrete slab has a width of about 40 cm
  • the depth of the grooves is in the range of 0.5 cm.
  • the invention proposes now for the production of such guide devices a mobile machine in which in a chassis at least one front, steerable wheel, a driven Rillenfräs adopted, and two rear wheels are provided, each of the front side of the Rillenfräs observed and arranged relative to the Rillenfräs driving height adjustable are.
  • the rear wheels of the processing machine which are arranged on both sides immediately adjacent to the cylindrical groove milling device, thus determine the position or height of the groove milling device as directly as possible. Since both rear wheels are only vertically adjustable together, their common axis is substantially parallel to the traffic surface, regardless of whether it is horizontal or inclined. Since the axis of the Rillenfräs adopted due to the common height adjustment is always parallel to the axis of the wheels, the Rillenfräs worn is also parallel to the traffic surface, so that longitudinal grooves with substantially the same depth, for example, of 0.5 cm, are milled without the course or inclination of Traffic area have a significant influence on this depth.
  • the milling tools of the Rillenfräs are arranged in the direction of the axis with equal distances from each other, so that the longitudinal grooves to be produced by these lie in the traffic area at these intervals.
  • the milling tools are therefore preferably distributed on the circumference of discs, which are spaced from each other on a central shaft, form a kind of milling drum.
  • the drive could therefore take place via a gear transmission which comprises at least one spur gear in a space between the disks.
  • chassis-fixed bearing brackets may be arranged in other spaces, so that the rear wheels can be provided directly frontally then, and yet both drive and storage of Rollenfräs observed is housed within the rear wheels. But it is structurally easier if the rear wheels are adjustable in height and not the intervening Rillenfräs observed.
  • a preferred embodiment provides that the two rear wheels are arranged on hubs, each having a central opening, and that the drive shaft of the Rillenfräs worn is guided through the central openings of the hubs to the outside and stored outside the two wheels in the chassis, said both openings are larger than the diameter of the drive shaft.
  • This embodiment has the advantage that the drive of the Rillenfräs worn can be introduced from one end, which brings constructive advantages in terms of the arrangement and placement of the drive motor and the intermediate gear in view of the compact width of the processing machine with it.
  • the rear wheels of this embodiment are thus arranged on fixed hubs, which have a central opening with a diameter which is the maximum adjustment height of the rear wheels.
  • This adjustment height and thus the diameter of the opening is about 8 to 10 cm in order to maneuver the machine easily to the site can. Suffice would of course already an adjustment that corresponds to twice the groove depth.
  • the hubs do not rotate with the rear wheels, they are preferably formed by mounted on the hub rings, which are in particular equipped with solid rubber tires.
  • the rear wheels may have a drive; However, it has been shown that drive-less races meet the requirements, so that the drive for the forward movement of the machine can be assigned to the at least one front wheel, especially if there is provided a front axle with two spaced-apart wheels.
  • the processing machine has a steerable front wheel or preferably a steerable front axle with two wheels, which are coupled for example in the usual way via a steering gear, so that curves can be driven.
  • the processing machine is therefore preferably provided with a particularly simple rod-shaped visor and control device in the immediate region of the rear wheels, wherein the correctness of the work can be recognized by the fact that the sighting and control device moves above the marking line.
  • the hubs of the two rear wheels are each limited rotatably mounted in the chassis about a vertical axis.
  • a "steerable rear axle" can be achieved, i. the rear wheels do not follow the track dependent on the front wheel steering, but can be guided following the marking line.
  • the hubs of the two rear wheels are jointly steerable by means of a rear steering gear which is independent of the front steering gear.
  • the two holders of the hubs are coupled by a tie rod and each pivotally mounted about a vertical axis in the lifting device.
  • the chassis has two chassis parts pivotable relative to one another about a longitudinal axis, wherein at least one front, steerable wheel, preferably the front axle with two steerable wheels, is provided on a chassis part, and the two rear wheels and the driven groove milling device are arranged on the second chassis part.
  • the two chassis parts can thus rotate against each other when uneven floors cause this and the decisive for the consistent depth of the longitudinal grooves parallelism of Rillenfräs issued and the rear wheels to the traffic surface is maintained.
  • the dimensions of the processing machine are relatively small: With a working width of about half a meter and a length of one and a half to two meters, a weight of about 400 kg is achieved.
  • each provided an electric motor wherein the travel drive can be switched via a hand lever to the milling drive.
  • a power supply via an electrical cable that can be connected to appropriate sockets, readily executable.
  • the processing machine may further be provided with a spraying device, which can be connected, for example via a water hose to water outlets to bind the resulting milling dust.
  • the chassis 1 is formed from two chassis parts 2, 11 which are freely pivotable relative to one another about a longitudinal axis 10, so that both chassis parts 2, 11 can each adapt independently of unevenness of the traffic surface 35 and ensure the support of all wheels 3, 12 on the ground is.
  • the groove milling device 15 has a drive shaft 18 which is mounted in side plates 29 of the rear chassis part 11, the distance of the groove milling device 15 to the traffic surface 35 to be processed being adjusted by height adjustment of the rear wheels 12 penetrated by the drive shaft 18 by means of a schematically indicated one Screw 26 comprehensive lifting device 25 can be changed in particular by hand.
  • the Verstellhub the rear wheels 12 is at least twice the depth of the grooves to be milled, which is preferably at half a centimeter, and is preferably about 7 to 10 cm, so that the processing machine in the fully lowered state of the wheels 12 safely and safely moved.
  • the coupled pivoting of the rear wheels 12 by means of the rear steering gear 21 takes place by manual rotation of a second steering wheel 22 (FIG. Fig. 1 ) and serves to let the groove milling device 15 also follow in a curve exactly one predetermined line recorded on the traffic area 35.
  • the exact adjustment of the steering angle of the two left wheels 12 can by means of a sighting aid 31 (FIG. Fig. 2 ), which consists essentially of a laterally attached to the second chassis part 11 rod whose lower end moves just above the traffic surface 35.
  • the rear wheels 12 are thus independently of the front wheel 3 and the front axle 4 steerable.
  • the front wheels 3 are by means of in Fig. 1 and 2 indicated steering gear 5 with the first steering wheel 6 steered.
  • the drive of the Rillenfräs founded 15 by means of a motor 16, in particular an electric motor which is arranged on the second chassis part 11 and is connected to the drive shaft 18 via a traction means 17 ( Fig. 1 ).
  • the drive is preferably also carried out by an electric motor, not shown, which is housed in the front, first chassis part 2 and the one operating lever 7 (FIG. Fig, 1 ) assigned.
  • the wheels 3, 12 are preferably provided with solid rubber tires, wherein the tires of the rear wheels 12 are provided on races 28 which on bearings 27 on the Unroll hubs 13.
  • a drive of the rear wheels 12 is not present in the construction shown, but may be provided.
  • Fig. 1 it can be seen, the groove milling device 15 is covered by a lining 36, under which a moistening device 30 leads, so that the resulting milling dust can be moistened.
  • a platform 9 is formed for an operator, within whose reach the front steering wheel 6, the operating lever 7 for the traction drive, the rear steering wheel 22 and the operating part of the screw 26 of the lifting device 25 for the rear wheels 12 are.
  • the groove milling device 15 comprises, as Fig. 4 shows, in particular seven spaced by spacer rings 34 Fräsepticn 32, at the periphery trapezoidal milling tools 33 are arranged.
  • the trapezoidal milling tools 33 are suitable for the production of longitudinal grooves 40 in the traffic area 35 with mutually inclined side surfaces, so that the damage of the groove edges is avoided.
  • the guide can be milled in traffic areas of any material, such as asphalt, concrete, paving stones, optionally different milling discs 32 are used.
  • the grooves 40 can be rectilinear, curved, mutually milled at right angles or obliquely crossing, the arrangement of the Rillenfräs adopted 15 at the rear end of the processing machine makes it easier to start the longitudinal grooves 40 also directly on a wall od. Like. Obstacle, and the rest to achieve an exact and visually attractive design even when crossing arrangement.
  • Fig. 4 are the created by means of the milling tools 33 longitudinal grooves 40 in the traffic area shown in section.
  • a permanent thermoplastic compound 41 in a color permissible for ground markings on traffic areas, in particular yellow or white, can be melted down.

Abstract

The machine has a front steerable wheel, a propelled groove milling device (15) and two rear wheels (12) provided in a chassis. The rear wheels are commonly arranged at a front-side at the groove milling device and relative to the groove milling device in a height adjustable manner. The rear wheels are arranged on hubs (13) that comprise a central aperture (20). A drive shaft (18) of the groove milling device is outwardly guided through the central aperture of the hubs and mounted outside of the rear wheels in the chassis. An independent claim is also included for a method for providing a guidance device in form of a longitudinal groove in a traffic area.

Description

Die Erfindung betrifft eine fahrbare Bearbeitungsmaschine zur Herstellung von Leiteinrichtungen in Form von parallelen Längsrillen in Verkehrsflächen für sehbehinderte Personen sowie ein Verfahren zum Bereitstellen derartiger Blindenleiteinrichtungen.The invention relates to a mobile processing machine for the production of guide devices in the form of parallel longitudinal grooves in traffic areas for visually impaired persons and a method for providing such Blindenleiteinrichtungen.

Zum Herstellen einer Ausnehmung für Markierungsstreifen, die mit Farbe gefüllt werden, ist aus der DE-B 10 98 974 eine dreirädrige Straßenfräsmaschine bekannt, an deren Chassis eine Fräswalze sowie ein Antriebsmotor mittels einer Spindel händisch höhenverstellbar angeordnet ist. Mit dem Antriebsmotor ist ein Fahrantrieb kuppelbar. Da das Gerät nur eine Ausnehmung für einen Markierungsstreifen, beispielsweise eine Leitlinie oder Sperrlinie herstellen soll, ist die Länge der Fräswalze bedeutend kürzer als die Breite des Fahrzeuges, und die Fräswalze liegt vor der Hinterachse.To produce a recess for marking strips which are filled with paint, is from the DE-B 10 98 974 a three-wheeled road milling machine known at the chassis of a milling drum and a drive motor by means of a spindle is arranged manually adjustable in height. A traction drive can be coupled with the drive motor. Since the device is only intended to produce a recess for a marking strip, for example a guideline or blocking line, the length of the milling drum is significantly shorter than the width of the vehicle, and the milling drum lies in front of the rear axle.

Zum Abfräsen von Straßenbelägen sind Bearbeitungsmaschinen bekannt, beispielsweise aus DE 196 17 442 oder DE 10 2010 014 893 , deren Ziel es ist, bei der Sanierung von Straßen eine möglichst ideale Oberfläche in der Straßenbreite zu erzielen. Um vorhandene Unebenheiten auszugleichen und diese nicht auf die Fräswalze zu übertragen, sind die Räder einzeln höhenverstellbar im Chassis gelagert, sie können daher jeweils soweit abgesenkt oder angehoben werden, dass die Fräswalze im Wesentlichen horizontal bzw. in der gewünschten Neigung im Chassis angeordnet ist.For milling road surfaces processing machines are known, for example DE 196 17 442 or DE 10 2010 014 893 whose aim is to achieve the best possible surface in the road width when refurbishing roads. To compensate for existing bumps and not to transfer them to the milling drum, the wheels are individually height-adjustable mounted in the chassis, they can therefore each lowered or raised so far that the milling drum is arranged substantially horizontally or at the desired inclination in the chassis.

Auf Gehsteigen und anderen Verkehrsflächen für sehbehinderte Personen werden taktile Leiteinrichtungen in dar Weise vorgesehen, dass gerillte Betonplatten auf in den Gehsteig bzw. in die Verkehrsfläche eingelassenen Fundamenten verlegt werden, wobei an Kreuzungsstellen Betonplatten mit Längs- und Querrillen eingesetzt werden, an denen somit nur etwa quadratische Erhebungen verbleiben. Die Betonplatten weisen im Allgemeinen sieben parallele Rillen von etwa 3 cm Breite mit etwa gleich breiten Zwischenstegen auf, sodass eine derartige Betonplatte eine Breite von etwa 40 cm aufweist Die Tiefe der Rillen liegt im Bereich von 0,5 cm. Die Herstellung dieser taktilen Leiteinrichtungen ist ziemlich aufwendig und teuer, sodass naturgemäß nur ein Minimum an Verkehrsflächen damit ausgestattet wird.On pavements and other traffic areas for visually impaired people tactile control devices are provided in a manner that grooved concrete slabs are laid on embedded in the sidewalk or in the traffic area foundations, being used at intersections concrete slabs with longitudinal and transverse grooves on which thus only about square elevations remain. The concrete slabs generally have seven parallel grooves of about 3 cm width with approximately equal width intermediate webs, so that such a concrete slab has a width of about 40 cm The depth of the grooves is in the range of 0.5 cm. The production of these tactile guide devices is quite expensive and expensive, so naturally only a minimum of traffic areas is equipped with it.

Die Erfindung schlägt nun zur Herstellung derartiger Leiteinrichtungen eine fahrbare Bearbeitungsmaschine vor, bei der in einem Chassis zumindest ein vorderes, lenkbares Rad, eine angetriebene Rillenfräseinrichtung, und zwei hintere Räder vorgesehen sind, die jeweils stirnseitig an die Rillenfräseinrichtung anschließend und relativ zur Rillenfräseinrichtung gemeinsam höhenverstellbar angeordnet sind.The invention proposes now for the production of such guide devices a mobile machine in which in a chassis at least one front, steerable wheel, a driven Rillenfräseinrichtung, and two rear wheels are provided, each of the front side of the Rillenfräseinrichtung and arranged relative to the Rillenfräseinrichtung height adjustable are.

Auf diese Weise bestimmen die hinteren Räder der Bearbeitungsmaschine, die beidseitig unmittelbar neben der walzenförmigen Rillenfräseinrichtung angeordnet sind, somit die Lage bzw. Höhe der Rillenfräseinrichtung so direkt wie möglich. Da beide hinteren Räder nur gemeinsam in der Höhe verstellbar sind, ist ihre gemeinsame Achse im Wesentlichen parallel zur Verkehrsfläche unabhängig davon, ob diese horizontal oder geneigt verläuft. Da die Achse der Rillenfräseinrichtung auf Grund der gemeinsamen Höhenverstellbarkeit immer parallel zur Achse der Räder verläuft, ist die Rillenfräseinrichtung auch parallel zur Verkehrsfläche, sodass Längsrillen mit im Wesentlichen gleicher Tiefe, beispielsweise von 0,5 cm, gefräst werden, ohne dass Verlauf oder Neigung der Verkehrsfläche einen nennenswerten Einfluss auf dieses Tiefenmaß haben. Die Stabilität der Bearbeitungsmaschine ist dabei höher, wenn die Rillenfräseinrichtung im Chassis gelagert und die hinteren Räder im Chassis höhenverstellbar angeordnet sind. Die Umkehrung, nämlich eine höhenverstellbare Führung der Rillenfräseinrichtung im Chassis ist aber ebenso einsetzbar.In this way, the rear wheels of the processing machine, which are arranged on both sides immediately adjacent to the cylindrical groove milling device, thus determine the position or height of the groove milling device as directly as possible. Since both rear wheels are only vertically adjustable together, their common axis is substantially parallel to the traffic surface, regardless of whether it is horizontal or inclined. Since the axis of the Rillenfräseinrichtung due to the common height adjustment is always parallel to the axis of the wheels, the Rillenfräseinrichtung is also parallel to the traffic surface, so that longitudinal grooves with substantially the same depth, for example, of 0.5 cm, are milled without the course or inclination of Traffic area have a significant influence on this depth. The stability of the processing machine is higher when the Rillenfräseinrichtung mounted in the chassis and the rear wheels are arranged height adjustable in the chassis. The reversal, namely a height-adjustable guide the Rillenfräseinrichtung in the chassis but can also be used.

Die Fräswerkzeuge der Rillenfräseinrichtung sind in Richtung der Achse mit gleichen Abständen zueinander angeordnet, sodass die von diesen herzustellenden Längsrillen in der Verkehrsfläche in diesen Abständen liegen. Die Fräswerkzeuge sind daher bevorzugt auf dem Umfang von Scheiben verteilt, die voneinander beabstandet auf einer zentralen Welle vorgesehen sind, eine Art von Fräswalze bilden. Der Antrieb könnte daher über ein Zahnradgetriebe erfolgen, das zumindest ein Stirnzahnrad in einem Zwischenraum zwischen den Scheiben umfasst. Ebenso können in anderen Zwischenräumen chassisfeste Lagerlaschen angeordnet sein, sodass die hinteren Räder direkt stirnseitig anschließend vorgesehen sein können, und dennoch sowohl Antrieb als auch Lagerung der Rollenfräseinrichtung innerhalb der hinteren Räder untergebracht ist. Es ist aber konstruktiv einfacher, wenn die hinteren Räder höhenverstellbar sind und nicht die dazwischen liegende Rillenfräseinrichtung.The milling tools of the Rillenfräseinrichtung are arranged in the direction of the axis with equal distances from each other, so that the longitudinal grooves to be produced by these lie in the traffic area at these intervals. The milling tools are therefore preferably distributed on the circumference of discs, which are spaced from each other on a central shaft, form a kind of milling drum. The drive could therefore take place via a gear transmission which comprises at least one spur gear in a space between the disks. Likewise, chassis-fixed bearing brackets may be arranged in other spaces, so that the rear wheels can be provided directly frontally then, and yet both drive and storage of Rollenfräseinrichtung is housed within the rear wheels. But it is structurally easier if the rear wheels are adjustable in height and not the intervening Rillenfräseinrichtung.

Eine bevorzugte Ausführung sieht vor, dass die beiden hinteren Räder auf Naben angeordnet sind, die jeweils eine zentrale Öffnung aufweisen, und dass die Antriebswelle der Rillenfräseinrichtung durch die zentralen Öffnungen der Naben nach außen geführt und außerhalb der beiden Räder im Chassis gelagert ist, wobei die beiden Öffnungen jeweils größer als der Durchmesser der Antriebswelle sind. Diese Ausführung hat den Vorteil, dass der Antrieb der Rillenfräseinrichtung von einem Ende eingebracht werden kann, was konstruktive Vorteile hinsichtlich der Anordnung und Unterbringung des Antriebsmotors und des Zwischengetriebes angesichts der kompakten Breite der Bearbeitungsmaschine mit sich bringt. Die hinteren Räder dieser Ausführung sind somit auf festen Naben angeordnet, die eine zentrale Öffnung mit einem Durchmesser aufweisen, der die maximale Verstellhöhe der hinteren Räder beträgt. Diese Verstellhöhe und damit der Durchmesser der Öffnung liegt bei etwa 8 bis 10 cm, um die Bearbeitungsmaschine problemlos an den Einsatzort manövrieren zu können. Ausreichen würde natürlich bereits eine Verstellhöhe, die der doppelten Rillentiefe entspricht. Da sich die Naben nicht mit den hinteren Rädern mitdrehen, sind diese bevorzugt durch auf den Naben gelagerten Ringe gebildet, die insbesondere mit Vollgummireifen bestückt sind. Die hinteren Räder können einen Antrieb aufweisen; es hat sich aber gezeigt, dass auch antriebslose Laufringe den Anforderungen genügen, sodass der Antrieb für die Vorwärtsbewegung der Bearbeitungsmaschine dem zumindest einen vorderen Rad zugeordnet werden kann, insbesondere wenn dort eine Vorderachse mit zwei voneinander beabstandeten Rädern vorgesehen ist.A preferred embodiment provides that the two rear wheels are arranged on hubs, each having a central opening, and that the drive shaft of the Rillenfräseinrichtung is guided through the central openings of the hubs to the outside and stored outside the two wheels in the chassis, said both openings are larger than the diameter of the drive shaft. This embodiment has the advantage that the drive of the Rillenfräseinrichtung can be introduced from one end, which brings constructive advantages in terms of the arrangement and placement of the drive motor and the intermediate gear in view of the compact width of the processing machine with it. The rear wheels of this embodiment are thus arranged on fixed hubs, which have a central opening with a diameter which is the maximum adjustment height of the rear wheels. This adjustment height and thus the diameter of the opening is about 8 to 10 cm in order to maneuver the machine easily to the site can. Suffice would of course already an adjustment that corresponds to twice the groove depth. Since the hubs do not rotate with the rear wheels, they are preferably formed by mounted on the hub rings, which are in particular equipped with solid rubber tires. The rear wheels may have a drive; However, it has been shown that drive-less races meet the requirements, so that the drive for the forward movement of the machine can be assigned to the at least one front wheel, especially if there is provided a front axle with two spaced-apart wheels.

Für die gemeinsame Höhenverstellbarkeit der hinteren Räder sind deren Naben bevorzugt jeweils an einem seitlichen Halter vorgesehen, und die beiden Halter mit einer Hubvorrichtung verbunden, die bevorzugt händisch über eine Schraubspindel betätigt wird. Die Bearbeitungsmaschine weist ein lenkbares vorderes Rad bzw. bevorzugt eine lenkbare Vorderachse mit zwei Rädern auf, die beispielsweise in üblicher Weise über ein Lenkgetriebe gekoppelt sind, sodass Kurven gefahren werden können.For the common height adjustment of the rear wheels whose hubs are preferably each provided on a lateral holder, and the two holders connected to a lifting device, which is preferably operated manually via a screw. The processing machine has a steerable front wheel or preferably a steerable front axle with two wheels, which are coupled for example in the usual way via a steering gear, so that curves can be driven.

Je nach den gegebenen räumlichen Verhältnissen der Verkehrsfläche ist mitunter auch eine exakte Festlegung des Verlaufs der taktilen Leiteinrichtung notwendig, sodass die vom Abstand zwischen Vorder- und Hinterrädern abhängige Innenversetzung der Hinterräder beim Befahren einer Kurve zu einem nicht tolerierbaren Fehlverlauf der Rillen im Kurvenbereich führt. Gerade bei räumlich beengten Verhältnissen wird der Verlauf der Leiteinrichtung durch eine Markierungslinie exakt vorgesehen, entlang der die Fräsung erfolgen muss. Die Bearbeitungsmaschine ist daher bevorzugt mit einer insbesondere einfachen stabförmigen Visier- und Kontrolleinrichtung im unmittelbaren Bereich der hinteren Räder versehen, wobei die Richtigkeit der Arbeit daran erkannt werden kann, dass sich die Visier- und Kontrolleinrichtung oberhalb der Markierungslinie bewegt.Depending on the given spatial conditions of the traffic area, an exact definition of the course of the tactile guide is sometimes necessary so that the dependent on the distance between the front and rear wheels Innenversetzung the rear wheels when driving a curve leads to an intolerable misalignment of the grooves in the curve area. Especially in cramped conditions of the Course of the guide exactly provided by a marking line along which the milling must be done. The processing machine is therefore preferably provided with a particularly simple rod-shaped visor and control device in the immediate region of the rear wheels, wherein the correctness of the work can be recognized by the fact that the sighting and control device moves above the marking line.

In einer weiteren bevorzugten Ausführung ist für die exakte Führung der Rillenfräseinrichtung vorgesehen, dass die Naben der beiden hinteren Räder jeweils um eine vertikale Achse begrenzt drehbar im Chassis gelagert sind. Auf diese Weise kann eine "lenkbare Hinterachse" erzielt werden, d.h. die hinteren Räder folgen nicht der von der Vorderradlenkung abhängigen Spur, sondern können der Markierungslinie folgend geführt werden. Bevorzugt sind die Naben der beiden hinteren Räder mittels eines hinteren Lenkgetriebes, das vom vorderen Lenkgetriebe unabhängig ist, gemeinsam lenkbar. Insbesondere sind hiefür die beiden Halter der Naben durch eine Spurstange gekoppelt und jeweils um eine vertikale Achse schwenkbar in der Hubvorrichtung gelagert.In a further preferred embodiment, it is provided for the exact guidance of the groove milling device, that the hubs of the two rear wheels are each limited rotatably mounted in the chassis about a vertical axis. In this way, a "steerable rear axle" can be achieved, i. the rear wheels do not follow the track dependent on the front wheel steering, but can be guided following the marking line. Preferably, the hubs of the two rear wheels are jointly steerable by means of a rear steering gear which is independent of the front steering gear. In particular, for this purpose, the two holders of the hubs are coupled by a tie rod and each pivotally mounted about a vertical axis in the lifting device.

Wenn die Bearbeitungsmaschine eine Vorderachse mit zwei voneinander beabstandeten Rädern aufweist und somit vierrädrig ist, können Bodenunebenheiten zu einer fehlerhaften Ausfräsung der Längsrillen führen, d.h. deren Tiefe kann gegebenenfalls schwanken. Um dem vorzubeugen, sieht eine weitere bevorzugte Ausführung der Bearbeitungsmaschine vor, dass das Chassis zwei um eine Längsachse gegeneinander verschwenkbare Chassisteile aufweist, wobei an einem Chassisteil das zumindest eine vordere, lenkbare Rad, vorzugsweise die Vorderachse mit zwei lenkbaren Rädern vorgesehen ist, und die beiden hinteren Räder sowie die angetriebene Rillenfräseinrichtung am zweiten Chassisteil angeordnet sind. Die beiden Chassisteile können sich somit gegeneinander verdrehen, wenn Bodenunebenheiten dies bewirken und die für die gleichbleibende Tiefe der Längsrillen maßgebliche Parallelität der Rillenfräseinrichtung und der hinteren Räder zur Verkehrsfläche bleibt erhalten.If the machine tool has a front axle with two spaced-apart wheels and thus is four-wheeled, uneven ground may lead to erroneous milling of the longitudinal grooves, i. their depth may vary. To prevent this, another preferred embodiment of the processing machine provides that the chassis has two chassis parts pivotable relative to one another about a longitudinal axis, wherein at least one front, steerable wheel, preferably the front axle with two steerable wheels, is provided on a chassis part, and the two rear wheels and the driven groove milling device are arranged on the second chassis part. The two chassis parts can thus rotate against each other when uneven floors cause this and the decisive for the consistent depth of the longitudinal grooves parallelism of Rillenfräseinrichtung and the rear wheels to the traffic surface is maintained.

Die Dimensionen der Bearbeitungsmaschine sind verhältnismäßig klein: Bei einer Arbeitsbreite von etwa einem halben Meter und einer Länge von eineinhalb bis zwei Meter wird ein Gewicht von ca. 400 kg erzielt. Für den Antrieb der Rillenfräseinrichtung und die Vorwärtsbewegung der Bearbeitungsmaschine ist daher bevorzugt je ein Elektromotor vorgesehen, wobei der Fahrantrieb über einen Handhebel zum Fräsantrieb zugeschaltet werden kann. Im urbanen Bereich ist daher eine Stromversorgung über ein elektrisches Kabel, das an entsprechende Steckdosen angeschlossen werden kann, ohne Weiteres ausführbar. Die Bearbeitungsmaschine kann weiters noch mit einer Sprüheinrichtung versehen sein, die beispielsweise über einen Wasserschlauch an Wasserauslässe angeschlossen werden kann, um den entstehenden Frässtaub zu binden.The dimensions of the processing machine are relatively small: With a working width of about half a meter and a length of one and a half to two meters, a weight of about 400 kg is achieved. For driving the groove milling device and the forward movement of the processing machine is therefore preferably each provided an electric motor, wherein the travel drive can be switched via a hand lever to the milling drive. In the urban area, therefore, a power supply via an electrical cable that can be connected to appropriate sockets, readily executable. The processing machine may further be provided with a spraying device, which can be connected, for example via a water hose to water outlets to bind the resulting milling dust.

Nachfolgend wird nun die Erfindung anhand der Figuren der beiliegenden Zeichnung näher beschrieben, ohne darauf beschränkt zu sein.The invention will now be described in more detail with reference to the figures of the accompanying drawings, without being limited thereto.

Es zeigen:

Fig. 1
eine Teilschrägansicht einer Bearbeitungsmaschine,
Fig. 2
eine gegenüberliegende Teilschrägansicht der Bearbeitungsmaschine
Fig. 3
eine schematische Darstellung der Hubvorrichtung mit der Rillenfräseinrichtung und den hinteren Rädern in angehobener Stellung, und
Fig. 4
einen schematischen Längsschnitt durch die Rillenfräseinrichtung nach der Linie IV-IV der Fig. 3.
Show it:
Fig. 1
a partial oblique view of a processing machine,
Fig. 2
an opposite partial oblique view of the processing machine
Fig. 3
a schematic representation of the lifting device with the Rillenfräseinrichtung and the rear wheels in the raised position, and
Fig. 4
a schematic longitudinal section through the groove milling device according to the line IV-IV of Fig. 3 ,

Eine erfindungsgemäße Bearbeitungsmaschine zur Herstellung von taktilen Leiteinrichtungen, insbesondere Blindenleiteinrichtungen, in Form von parallelen Längsrillen 40 in Verkehrsflächen 35 für sehbehinderte Fußgänger umfasst ein Chassis 1 mit mindestens einem vorderen, lenkbaren Rad 3, insbesondere zwei auf einer Vorderachse 4 angeordnete Räder 3, zwei hintere Räder 12, die jeweils stirnseitig im Anschluss an eine walzenförmige, aus voneinander durch Distanzringe 34 beabstandete Frässcheiben 32 gebildete Rillenfräseinrichtung 15 an Haltern 14 angeordnet sind. Das Chassis 1 ist aus zwei Chassisteilen 2, 11 gebildet, die um eine Längsachse 10 frei gegeneinander verschwenkbar sind, sodass beide Chassisteile 2, 11 sich jeweils unabhängig von Unebenheiten der Verkehrsfläche 35 anpassen können und die Auflage aller Räder 3, 12 auf dem Untergrund sichergestellt ist. Die Rillenfräseinrichtung 15 weist eine in Seitenplatten 29 des hinteren Chassisteils 11 gelagerte Antriebswelle 18 auf, wobei der Abstand der Rillenfräseinrichtung 15 zur bearbeitenden Verkehrsfläche 35 durch Höhenverstellung der von der Antriebswelle 18 durchsetzten hinteren Räder 12 mittels einer nur schematisch angedeuteten, eine Schraubenspindel 26 umfassenden Hubeinrichtung 25 insbesondere händisch geändert werden kann. Der Verstellhub der hinteren Räder 12 beträgt zumindest die doppelte Tiefe der zu fräsenden Rillen, die bevorzugt bei einem halben Zentimeter liegt, und beträgt vorzugsweise ca. 7 bis 10 cm, sodass die Bearbeitungsmaschine in vollständig abgesenktem Zustand der Räder 12 sicher und ungefährdet verfahrbar ist. Um die hinteren Räder 12 in der Höhe verstellen zu können, weisen die Räder Naben 13 auf, die mit einer relativ großen zentralen Öffnung 20 versehen sind, deren Durchmesser zumindest dem maximalen Hub der Hubeinrichtung 25 entspricht. Die Naben 13 sind an seitlichen Haltern 14 befestigt, die sich nach oben erstrecken und um vertikale Achsen 24 begrenzt verschwenkbar sind. Der maximale Schwenkwinkel ergibt sich dabei aus der Durchmesserdifferenz der Öffnung 20 in der Nabe 13 und der sie durchsetzenden Antriebswelle 18 und kann beispielsweise bis zu 40° betragen. Die Schwenklager 19 der Halter 14 sowie ein anschließendes eine Spurstange 23 zwischen den beiden Haltern 14 umfassendes, nur schematisch angedeutetes hinteres Lenkgetriebe 21 sind mittels der Hubeinrichtung 25 gemeinsam höhenverstellbar im hinteren Chassisteil 11 angeordnet, wie bereits oben erwähnt.A processing machine according to the invention for the production of tactile guide devices, in particular guidance devices in the form of parallel longitudinal grooves 40 in traffic areas 35 for visually impaired pedestrians comprises a chassis 1 with at least one front, steerable wheel 3, in particular two arranged on a front axle 4 wheels 3, two rear wheels 12, which are each arranged on the front side following a cylindrical, spaced apart from each other by spacers 34 milling discs 32 groove milling device 15 on holders 14. The chassis 1 is formed from two chassis parts 2, 11 which are freely pivotable relative to one another about a longitudinal axis 10, so that both chassis parts 2, 11 can each adapt independently of unevenness of the traffic surface 35 and ensure the support of all wheels 3, 12 on the ground is. The groove milling device 15 has a drive shaft 18 which is mounted in side plates 29 of the rear chassis part 11, the distance of the groove milling device 15 to the traffic surface 35 to be processed being adjusted by height adjustment of the rear wheels 12 penetrated by the drive shaft 18 by means of a schematically indicated one Screw 26 comprehensive lifting device 25 can be changed in particular by hand. The Verstellhub the rear wheels 12 is at least twice the depth of the grooves to be milled, which is preferably at half a centimeter, and is preferably about 7 to 10 cm, so that the processing machine in the fully lowered state of the wheels 12 safely and safely moved. In order to adjust the rear wheels 12 in height, the wheels have hubs 13, which are provided with a relatively large central opening 20 whose diameter corresponds at least to the maximum stroke of the lifting device 25. The hubs 13 are secured to lateral supports 14, which extend upwardly and are pivotable about vertical axes 24 limited. The maximum pivoting angle results from the difference in diameter of the opening 20 in the hub 13 and the drive shaft 18 passing through it and can be, for example, up to 40 °. The pivot bearing 19 of the holder 14 and a subsequent tie rod 23 between the two holders 14 comprehensive, only schematically indicated rear steering gear 21 are arranged vertically adjustable by means of the lifting device 25 in the rear chassis part 11, as already mentioned above.

Die gekoppelte Verschwenkung der hinteren Räder 12 mittels des hinteren Lenkgetriebes 21 erfolgt durch händisches Verdrehen eines zweiten Lenkrads 22 (Fig. 1) und dient dazu, die Rillenfräseinrichtung 15 auch in einer Kurve exakt einer vorbestimmten, auf der Verkehrsfläche 35 aufgezeichneten Linie folgen zu lassen. Die genaue Einstellung des Lenkeinschlags der beiden linken Räder 12 kann dabei mittels einer Visierhilfe 31 (Fig. 2) erfolgen, die im Wesentlichen aus einem seitlich am zweiten Chassisteil 11 angebrachten Stab besteht, dessen unteres Ende sich knapp über der Verkehrsfläche 35 bewegt. Die hinteren Räder 12 sind somit unabhängig von dem vorderen Rad 3 bzw. der Vorderachse 4 lenkbar. Die vorderen Räder 3 werden mittels dem in Fig. 1 und 2 angedeuteten Lenkgetriebe 5 mit dem ersten Lenkrad 6 gelenkt.The coupled pivoting of the rear wheels 12 by means of the rear steering gear 21 takes place by manual rotation of a second steering wheel 22 (FIG. Fig. 1 ) and serves to let the groove milling device 15 also follow in a curve exactly one predetermined line recorded on the traffic area 35. The exact adjustment of the steering angle of the two left wheels 12 can by means of a sighting aid 31 (FIG. Fig. 2 ), which consists essentially of a laterally attached to the second chassis part 11 rod whose lower end moves just above the traffic surface 35. The rear wheels 12 are thus independently of the front wheel 3 and the front axle 4 steerable. The front wheels 3 are by means of in Fig. 1 and 2 indicated steering gear 5 with the first steering wheel 6 steered.

Der Antrieb der Rillenfräseinrichtung 15 erfolgt mittels eines Motors 16, insbesondere eines Elektromotors, der auf dem zweiten Chassisteil 11 angeordnet ist und mit der Antriebswelle 18 über ein Zugmittel 17 verbunden ist (Fig. 1). Der Fahrantrieb erfolgt bevorzugt ebenfalls durch einen nicht gezeigten Elektromotor, der im vorderen, ersten Chassisteil 2 untergebracht ist und dem ein Bedienungshebel 7 (Fig, 1) zugeordnet ist. Die Räder 3, 12 sind bevorzugt mit Vollgummireifen versehen, wobei die Reifen der hinteren Räder 12 auf Laufringen 28 vorgesehen sind, die auf Lagern 27 auf den Naben 13 abrollen. Ein Antrieb der hinteren Räder 12 ist in der gezeigten Konstruktion nicht vorhanden, kann aber vorgesehen sein.The drive of the Rillenfräseinrichtung 15 by means of a motor 16, in particular an electric motor which is arranged on the second chassis part 11 and is connected to the drive shaft 18 via a traction means 17 ( Fig. 1 ). The drive is preferably also carried out by an electric motor, not shown, which is housed in the front, first chassis part 2 and the one operating lever 7 (FIG. Fig, 1 ) assigned. The wheels 3, 12 are preferably provided with solid rubber tires, wherein the tires of the rear wheels 12 are provided on races 28 which on bearings 27 on the Unroll hubs 13. A drive of the rear wheels 12 is not present in the construction shown, but may be provided.

Wie aus Fig. 1 ersichtlich ist, ist die Rillenfräseinrichtung 15 durch eine Verkleidung 36 abgedeckt, unter die eine Befeuchtungseinrichtung 30 führt, sodass der entstehende Frässtaub befeuchtet werden kann.How out Fig. 1 it can be seen, the groove milling device 15 is covered by a lining 36, under which a moistening device 30 leads, so that the resulting milling dust can be moistened.

Zwischen den beiden Chassisteilen 2 und 11 ist eine Plattform 9 für eine Bedienungsperson ausgebildet, in deren Reichweite das vordere Lenkrad 6, der Bedienungshebel 7 für den Fahrantrieb, das hintere Lenkrad 22 und der Bedienungsteil der Schraubenspindel 26 der Hubeinrichtung 25 für die hinteren Räder 12 angeordnet sind.Between the two chassis parts 2 and 11, a platform 9 is formed for an operator, within whose reach the front steering wheel 6, the operating lever 7 for the traction drive, the rear steering wheel 22 and the operating part of the screw 26 of the lifting device 25 for the rear wheels 12 are.

Die Rillenfräseinrichtung 15 umfasst, wie Fig. 4 zeigt, insbesondere sieben durch Distanzringe 34 beabstandete Frässcheiben 32, an deren Umfang trapezförmige Fräswerkzeuge 33 angeordnet sind. Die trapezförmigen Fräswerkzeuge 33 eignen sich zur Herstellung von Längsrillen 40 in der Verkehrsfläche 35 mit zueinander geneigten Seitenflächen, sodass die Beschädigung der Rillenkanten vermieden wird. Die Leiteinrichtung kann in Verkehrsflächen aus beliebigem Material gefräst werden, beispielsweise Asphalt, Beton, Pflastersteine, wobei gegebenenfalls unterschiedliche Frässcheiben 32 eingesetzt werden. Die Rillen 40 können geradlinig, gebogen, einander rechtwinklig oder schiefwinklig kreuzend gefräst werden, wobei die Anordnung der Rillenfräseinrichtung 15 am hinteren Ende der Bearbeitungsmaschine es erleichtert, die Längsrillen 40 auch unmittelbar an einer Wand od. dgl. Hindernis beginnen zu lassen, und im Übrigen auch bei kreuzender Anordnung eine exakte und auch optisch ansprechende Gestaltung zu erzielen.The groove milling device 15 comprises, as Fig. 4 shows, in particular seven spaced by spacer rings 34 Frässcheiben 32, at the periphery trapezoidal milling tools 33 are arranged. The trapezoidal milling tools 33 are suitable for the production of longitudinal grooves 40 in the traffic area 35 with mutually inclined side surfaces, so that the damage of the groove edges is avoided. The guide can be milled in traffic areas of any material, such as asphalt, concrete, paving stones, optionally different milling discs 32 are used. The grooves 40 can be rectilinear, curved, mutually milled at right angles or obliquely crossing, the arrangement of the Rillenfräseinrichtung 15 at the rear end of the processing machine makes it easier to start the longitudinal grooves 40 also directly on a wall od. Like. Obstacle, and the rest to achieve an exact and visually attractive design even when crossing arrangement.

In Fig. 4 sind die mittels der Fräswerkzeuge 33 erstellten Längsrillen 40 in der Verkehrsfläche im Schnitt gezeigt. In zumindest eine der Längsrillen 40 kann nach dem Fräsen auch eine dauerhafte thermoplastische Masse 41 in einer für Bodenmarkierungen auf Verkehrsflächen zulässigen Farbe, insbesondere gelb oder weiß, eingeschmolzen werden.In Fig. 4 are the created by means of the milling tools 33 longitudinal grooves 40 in the traffic area shown in section. In at least one of the longitudinal grooves 40, after milling, a permanent thermoplastic compound 41 in a color permissible for ground markings on traffic areas, in particular yellow or white, can be melted down.

Claims (15)

Fahrbare Bearbeitungsmaschine zur Herstellung von Leiteinrichtungen in Form von parallelen Längsrillen in Verkehrsflächen (35) für sehbehinderte Personen, dadurch gekennzeichnet, dass in einem Chassis (1) zumindest ein vorderes, lenkbares Rad (3), eine angetriebene Rillenfräseinrichtung (15), und zwei hintere Räder (12) vorgesehen sind, die jeweils stirnseitig an die Rillenfräseinrichtung (15) anschließend und relativ zur Rillenfräseinrichtung (15) gemeinsam höhenverstellbar angeordnet sind.Mobile working machine for the production of guide devices in the form of parallel longitudinal grooves in traffic areas (35) for visually impaired persons, characterized in that in a chassis (1) at least one front, steerable wheel (3), a driven Rillenfräseinrichtung (15), and two rear Wheels (12) are provided, each of which is arranged on the front side of the Rillenfräseinrichtung (15) and relative to the Rillenfräseinrichtung (15) arranged vertically adjustable. Bearbeitungsmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die beiden hinteren Räder (12) auf Naben (13) angeordnet sind, die jeweils eine zentrale Öffnung (20) aufweisen, und dass die Antriebswelle (18) der Rillenfräseinrichtung (15) durch die zentralen Öffnungen (20) der Naben (13) nach außen geführt und außerhalb der beiden Räder (12) im Chassis (1) gelagert ist, wobei die beiden Öffnungen (20) jeweils größer als der Durchmesser der Antriebswelle (18) sind.Processing machine according to claim 1, characterized in that the two rear wheels (12) are arranged on hubs (13), each having a central opening (20), and that the drive shaft (18) of the groove milling device (15) through the central openings (20) of the hubs (13) guided to the outside and outside the two wheels (12) in the chassis (1) is mounted, wherein the two openings (20) each greater than the diameter of the drive shaft (18). Bearbeitungsmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die beiden hinteren Räder (1) durch auf den Naben (13) gelagerte Laufringe (28) gebildet sind.Processing machine according to claim 1 or 2, characterized in that the two rear wheels (1) are formed by races (28) mounted on the hubs (13). Bearbeitungsmaschine nach Anspruch 3, dadurch gekennzeichnet, dass die Laufringe (28) mit Vollgummireifen versehen sind.Processing machine according to claim 3, characterized in that the races (28) are provided with solid rubber tires. Bearbeitungsmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Naben (13) der beiden hinteren Räder (12) gekoppelt höhenverstellbar im Chassis (1) geführt sind.Processing machine according to one of claims 1 to 4, characterized in that the hubs (13) of the two rear wheels (12) coupled in height adjustable in the chassis (1) are guided. Bearbeitungsmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Naben (13) der beiden hinteren Räder (12) jeweils um eine vertikale Achse (24) begrenzt drehbar im Chassis (1) gelagert sind.Processing machine according to one of claims 1 to 5, characterized in that the hubs (13) of the two rear wheels (12) are each mounted limitedly rotatable about a vertical axis (24) in the chassis (1). Bearbeitungsmaschine nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass die Naben (13) der beiden hinteren Räder (12) mittels eines Lenkgetriebes (21) gemeinsam lenkbar sind.Processing machine according to claim 5 or 6, characterized in that the hubs (13) of the two rear wheels (12) by means of a steering gear (21) are jointly steerable. Bearbeitungsmaschine nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass die Naben (13) der beiden hinteren Räder (12) jeweils an einem Halter (14) angeordnet sind, wobei die beiden Halter (14) durch eine Spurstange (23) gekoppelt und an einer Hubvorrichtung (25) angeordnet sind.Processing machine according to one of claims 2 to 7, characterized in that the hubs (13) of the two rear wheels (12) are each arranged on a holder (14), wherein the two holders (14) by a tie rod (23) coupled and are arranged on a lifting device (25). Bearbeitungsmaschine nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Chassis (1) zwei um eine Längsachse (10) gegeneinander verschwenkbare Chassisteile (2, 11) aufweist, wobei an einem Chassisteil (2) das zumindest eine vordere, lenkbare Rad (3), vorzugsweise eine Vorderachse (4) mit zwei lenkbaren Rädern (3) vorgesehen ist, und die beiden hinteren Räder (12) sowie die angetriebene Rillenfräseinrichtung (15) am zweiten Chassisteil (11) angeordnet sind.Processing machine according to one of claims 1 to 8, characterized in that the chassis (1) has two about a longitudinal axis (10) against each other pivotable chassis members (2, 11), wherein on a chassis part (2), the at least one front, steerable wheel ( 3), preferably a front axle (4) with two steerable wheels (3) is provided, and the two rear wheels (12) and the driven Rillenfräseinrichtung (15) on the second chassis part (11) are arranged. Bearbeitungsmaschine nach Anspruch 9, dadurch gekennzeichnet, dass die beiden Räder (3) der Vorderachse (4) angetrieben sind.Processing machine according to claim 9, characterized in that the two wheels (3) of the front axle (4) are driven. Bearbeitungsmaschine nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Rillenfräseinrichtung (15) aus voneinander beabstandeten Scheiben (32) gebildet ist, an deren Umfang im Querschnitt trapezförmige Fräswerkzeuge (33) angeordnet sind.Processing machine according to one of claims 1 to 10, characterized in that the Rillenfräseinrichtung (15) from spaced-apart discs (32) is formed, on whose circumference in cross-section trapezoidal milling tools (33) are arranged. Bearbeitungsmaschine nach Anspruch 11, dadurch gekennzeichnet, dass die trapezförmigen Fräswerkzeuge (33) unter einem Winkel von ca. 30° abgeschrägt sind.Processing machine according to claim 11, characterized in that the trapezoidal milling tools (33) are bevelled at an angle of approximately 30 °. Verfahren zum Bereitstellen von Leiteinrichtungen in Form von parallelen Längsrillen (40) in Verkehrsflächen (35) für sehbehinderte Personen, dadurch gekennzeichnet, dass die Längsrillen (40) mit trapezförmigem Querschnitt in die Verkehrsfläche (35) gefräst werden.Method for providing guide devices in the form of parallel longitudinal grooves (40) in traffic areas (35) for visually impaired persons, characterized in that the longitudinal grooves (40) with trapezoidal cross-section are milled into the traffic area (35). Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass die Rillenfräseinrichtung (15) und die Räder (12) der Bearbeitungsmaschine in die gleiche Drehrichtung angetrieben werden.A method according to claim 13, characterized in that the groove milling device (15) and the wheels (12) of the processing machine are driven in the same direction of rotation. Verfahren nach Anspruch 13 oder 14, dadurch gekennzeichnet, dass in zumindest eine der gefrästen Längsrillen (40) eine von der Verkehrsfläche farblich differierende thermoplastische Masse (41) eingebracht wird.A method according to claim 13 or 14, characterized in that in at least one of the milled longitudinal grooves (40) is introduced from the traffic surface color different thermoplastic compound (41).
EP20130000463 2012-02-03 2013-01-31 Processing machine for the production of guide devices for the blind Active EP2623673B1 (en)

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US3045992A (en) * 1958-08-21 1962-07-24 Charles T Asbury Abrading machine and drive therefor
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SI2623673T1 (en) 2015-07-31
AT512489A1 (en) 2013-08-15
EP2623673B1 (en) 2015-03-11
DK2623673T3 (en) 2015-06-15

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