Device and use of said device for machining an unfixed area adjacent to a fixed track

Abstract

The invention relates to a device for working an unpaved area adjacent to a paved roadway. The device comprises a fastening device for releasably attaching the device to the front of an attachment of a construction machine.

Description

[0001] The present invention relates to a device for working an unpaved area adjacent to a paved roadway. Furthermore, the present invention relates to the use of this device for releasably attaching the device to the front of an attachment of a construction machine and for working an unpaved area adjacent to a paved roadway.

[0002] An unpaved area within the meaning of the present invention is preferably an area without a solid surface covering or without a covering of asphalt, concrete, tar or the like.

[0003] A construction machine within the meaning of the present invention is preferably a mobile machine that is powered by an engine (e.g., an internal combustion engine or electric motor) and can be used to process and handle building materials, transport construction materials, and carry out construction tasks. In particular, such construction machines are used for loosening, loading, transporting, placing, and compacting earth masses or bulk materials. As a rule, such construction machines can be equipped with various chassis and attachments. A typical embodiment of construction machinery is a stationary excavator (such as a hydraulic excavator), by means of which work tasks are carried out largely in one place over short travel distances, and which can usually swivel its attachment sideways and only reaches a low travel speed.Another typical type of construction machine is a mobile excavator (such as a wheel loader), with which work tasks are usually carried out by moving the entire construction machine and which cannot usually swivel its attachment sideways and reaches a higher travel speed than stationary excavators.

[0004] An attachment within the meaning of the present invention is preferably a device designed as an additional tool for a construction machine. With the help of the attachment, a construction machine can perform various work processes, with the attachments often being interchangeable via quick-change devices. The attachments are generally designed for loosening, transporting, and / or dumping soil or other bulk materials. Typical embodiments of attachments include loading and digging tools, such as a (loading) shovel and a bucket.

[0005] During the rehabilitation of paved roadways, particularly during asphalt pavement rehabilitation, one of the work steps is the treatment of an unpaved area adjacent to one of the edges (especially asphalt edges) of the paved roadway. The term "adjacent" in the context of the present invention is to be understood as meaning that the unpaved area is located near the paved roadway. The term "adjacent" includes the possibility that at least one further area, which is preferably part of the road cross-section, may be located between the paved roadway and the unpaved area. In particular, the term "adjacent" includes the fact that the unpaved area is directly adjacent to an outer edge of the paved roadway. The unpaved area is preferably the shoulder or a substantial portion of the shoulder.

[0006] A shoulder is an unpaved area that is or will be constructed adjacent to a paved roadway. Rather than serving as a travel area for vehicular traffic, the shoulder diverts surface water to depressions located along the side of the shoulder and provides space for the installation of passive safety barriers, guidance devices, and traffic signs. When paved roadways are newly constructed, the shoulder is constructed according to regulated specifications regarding size, width, and gradient. Since poorly maintained shoulders can lead to the formation of standing water and can increase in height due to road debris and vegetation residue, they must be treated, particularly milled, every three to six years in addition to resurfacing or asphalt surface repair.

[0007] A well-maintained shoulder or unpaved area adjacent to a paved roadway makes a crucial contribution to the maintenance and safety of the paved roadway. Shoulders, especially on busy roads, are often damaged, and prompt repair is recommended. If the damage is not repaired, massive disruption and consequential damage to the roadway, such as potholes and / or pavement damage, can quickly occur, significantly limiting its lifespan. Furthermore, surface water that cannot properly infiltrate into or away from the shoulder can pose a hazard to traffic in the form of aquaplaning.

[0008] It is known from practice that the processing or clearing of an unpaved area adjacent to a paved roadway or the shoulder is usually carried out using a stationary excavator (e.g., a hydraulic excavator or a compact excavator). This is a time-consuming process. Passive safety devices, guidance systems, and traffic signs along the edge of the paved roadway or road further complicate and lengthen the work, as they restrict the access to the area to be worked on and also limit the excavator's swing range. The often large attachments of construction machines are too bulky to ensure consistent and precise processing even with any safety devices present.Using an excavator to work on the unpaved area creates an additional hazard on the construction site due to the necessary swinging and reversing of the excavator. Furthermore, the excavator often works more of the shoulder than necessary, increasing the effort required for subsequent resurfacing.

[0009] The present invention is based on the object of improving the known procedure with regard to time expenditure, labor expenditure, efficiency, costs, manageability, occupational safety and / or sustainability, in particular to provide a device for faster, more cost-effective, less complex, more efficient, safer, easier to handle, more sustainable, more uniform and more precise processing of the unpaved area adjacent to the paved roadway, which reduces the subsequent effort of re-covering the processed area, in particular wherein disadvantages of the prior art are to be avoided or at least substantially reduced.

[0010] The above-mentioned object is achieved according to the invention by a device for working an unpaved area adjacent to a paved roadway, which device has a fastening device for releasably fastening the device, wherein the device according to the invention allows the device to be fastened to a front side of an attachment of a construction machine.

[0011] For the purposes of the present invention, the term "front side" of the attachment refers to the side of the attachment facing in the direction of travel and / or in the direction of use of the attachment. The term "front side" used here also includes a front surface.

[0012] The invention provides a number of advantages.

[0013] The device according to the invention offers the advantage of detachable attachment to a variety of different attachments, in particular loading and digging tools, particularly preferably buckets and / or loading shovels. Due to the detachable attachment, the device is designed as an additional component or as a tool for attachments and enables flexible use. This versatile application provides an alternative to the method known from practice, namely the use of a stationary excavator, which is only economical over short distances due to the low travel speed and output. In particular, attachments compatible with construction machinery can be used, which enable significantly greater cost-effectiveness over longer distances because they have a higher travel speed and accordingly ensure faster processing and thus an overall shorter construction time.

[0014] An example of a construction machine exhibiting such characteristics is a wheel loader. It has been determined that by using a wheel loader in combination with the device according to the invention, the processing of the unpaved area can be carried out up to three times faster than with conventional methods. Unlike with a stationary excavator, processing is not staggered and intermittent, but rather continuous and is therefore significantly dependent on the driving speed.

[0015] Furthermore, it has been determined that the use of the device according to the invention is beneficial to safety on construction sites, as the swiveling of the normally used stationary excavator, which is necessary for working on the unpaved area, is no longer necessary. Typically, the stationary excavator excavates a portion of the unpaved area and then swivels to the side to unload the excavated portion. It is known from practice that a stationary excavator often works on such an area in reverse to enable precise exposure. Since all-round visibility in a stationary excavator is generally limited and is further limited by reversing, this poses significant risks for other construction workers.

[0016] When using the device according to the invention, pivoting, unloading, or reversing is no longer necessary, as the material can be continuously moved laterally to the roadway in the direction of travel. This not only improves safety but also positively influences the time required for processing, as it allows the use of construction machines (such as wheel loaders) that can perform their work by moving the entire machine and are not dependent on pivoting. As already described, these construction machines are typically more economical over longer distances because they can achieve higher travel speeds.

[0017] Furthermore, mounting the attachment on the front of the attachment enhances safety, as the front is positioned in the direction of travel and / or the direction of attachment use, and thus in the field of vision of the construction machine operator. This allows for faster detection and response to obstacles, people, and / or other hazards.

[0018] Compared to the prior art, the use of the device according to the invention no longer results in interference from devices such as passive safety devices, guidance devices, or traffic signs. These devices often restrict the swivel movement of a stationary excavator along the unpaved area adjacent to the paved roadway. Furthermore, these devices can lead to cramped space conditions when using the attachments designed and customary for a stationary excavator. The device according to the invention ensures easy processing of the unpaved area, even in the presence of such devices.

[0019] According to the invention, it has been found that the use of the device according to the invention can significantly reduce the effort required for subsequent resurfacing of the unpaved area. This is because the attachments of a stationary excavator, which are often oversized for the intended purpose, generally move more material than necessary. By using the device according to the invention, only as much material is moved as necessary. This ensures consistent and precise processing and consequently reduces the effort required for resurfacing.

[0020] By using the device according to the invention, the prior art practice of using a stationary excavator to work the unpaved area adjacent to the paved roadway is obsolete. This eliminates the need for a stationary excavator to be transported to the construction site on a low-loader to work the unpaved area, which ultimately saves costs. Since the device, as described above, is designed as a tool or additional component of the attachment and also offers the option of detachable attachment, it does not have to be transported together with the construction machine, thus offering the advantage of easier transport.

[0021] The device according to the invention enables simple and quick attachment to the front of an attachment of a construction machine via the fastening device for detachable fastening. Due to its low weight and the detachable fastening design, the device can be attached by just one person in just a few minutes.

[0022] Preferably, the fastening device for releasably fastening the device to the attachment has at least one receptacle for positive and / or non-positive connection with a projection present on the front of the attachment.

[0023] A projection in the sense of the present invention is preferably a regular formation (on) the front side of the attachment, in particular a toothing or an individual tooth of the toothing and / or a tooth holder, and in this sense also counts towards the previously defined front side.

[0024] Thanks to the principle of detachable attachment to the projection or toothing, the device can be attached to various attachments, and accordingly, to a wide variety of construction machines. The detachable attachment of the device to the projection or toothing also contributes to precise alignment. Furthermore, the attachment to the projection ensures good or optimal power transmission of the device from the forward-moving construction machine.

[0025] In a further preferred embodiment of the inventive concept, the fastening device has exactly two receptacles for a positive and / or non-positive connection, each with a projection of the attachment. Preferably, both receptacles are arranged laterally offset on the fastening device. This contributes to the stability of the device with respect to the forces acting on it.

[0026] Particularly preferably, each receptacle for releasable fastening has a cavity in which a part of a projection of the attachment can be received, thereby enabling a positive and / or non-positive connection of the receptacle to the projection.

[0027] Preferably, each receptacle of the fastening device is designed to complement a projection of the attachment of the construction machine. This also enables a positive and / or non-positive connection of the receptacle to the projection.

[0028] Preferably, each receptacle of the fastening device can be plugged onto a projection of the attachment for detachable attachment. This facilitates very simple and quick attachment.

[0029] The device preferably comprises a penetrating part for penetrating the unpaved area and a deflecting part for deflecting material moved by the penetrating part, wherein the penetrating part and deflecting part each have a processing surface which are arranged at an obtuse angle to one another, in particular at an angle in the range of 100° to 120°. Said processing surfaces are preferably substantially flat. The penetrating part is intended to penetrate the material to be moved in the unpaved area. Due to the angular position and the force generated by the forward movement of the construction machine, the material is processed by the penetrating part and the processed material is then deflected laterally (away from the paved roadway) by the deflecting part, creating a type of trench along the edge of the paved roadway.

[0030] Particularly preferably, the width of the deflection part is greater than the width of the penetration part. This allows for the targeted redirection of the material moved by the penetration part. The moved material is thus redirected away from the paved roadway and forms a continuous accumulation next to the trench created by the penetration part.

[0031] In particular, the penetrating part is arranged laterally offset relative to the receptacle. Preferably, the penetrating part is arranged laterally offset toward the unpaved area so that the penetrating part can penetrate the unpaved area. This arrangement allows the construction machine to travel at least substantially on the paved roadway while simultaneously working on the adjacent and / or unpaved area or verge.

[0032] In a further preferred embodiment of the inventive concept, it is provided that the fastening device comprises a plate which has a particularly chamfered front wall, a rear wall and two side walls, wherein one of the side walls, preferably the side wall facing the unpaved area in the direction of travel, runs diagonally and forms an acute angle to the rear wall and that the deflection part and the penetration part are attached to the diagonally running side wall, preferably by means of a weld. The weld contributes to a stable and particularly permanent connection of the deflection part and the penetration part to the fastening device. Preferably, the front wall of the plate is chamfered in order to clear material that has accumulated on the paved roadway out of the way or to collect it in the attachment of the construction machine.

[0033] This acute angle allows the device to easily work the unpaved area, as it ensures good or optimal power transmission. This angle, formed between the sloping side wall and the rear wall, is preferably between 25° and 40°. This allows a sufficiently wide trench to be created without creating excessive resistance to the machine's longitudinal advance.

[0034] The device preferably has a guide means for guiding the device along the paved roadway. This guide means promotes uniform and precise processing of the unpaved area by guiding it along the edge of the paved roadway. A flat side of the guide means is preferably moved parallel to an edge of the paved area. The guide means serves the operator of the construction machine as a means of aligning the device with high precision. In particular, the guide means is designed as a rib-like reinforcement or reinforcing rib and is connected to the fastening device and the penetrating part. This contributes to the stability of the entire device and enables the forces acting on the penetrating part during processing to be distributed across the fastening device.

[0035] Furthermore, the guide means can also have a stiffening element, which is, for example, rod-shaped and additionally connects the guide means to the penetration part. The stiffening element promotes the transfer of the forces acting on the penetration part to the fastening device, thus supporting overall stability.

[0036] In a particularly preferred embodiment, the device consists solely of the fastening device, the deflection part, the penetration part, the guide means, and a stiffening element. The device according to the invention is particularly preferably constructed in one piece and / or rigidly.

[0037] For the purposes of the present invention, the term "one-piece" refers to the fact that the components are inseparably connected to one another. A one-piece design offers the advantage that assembly of the device prior to use is eliminated. This facilitates simple and quick installation.

[0038] A rigid design within the meaning of the present invention is preferably one without moving parts and / or any joints. With a rigid design, precise and uniform processing of the unpaved area is facilitated by the fixed conditions and dimensions. Furthermore, a rigid design contributes to a robust and stable device. The absence of moving parts and connections significantly reduces the maintenance required for the device.

[0039] Particularly preferably, the fastening device is designed for detachable fastening of the device to a front side of a bucket and / or a shovel of a construction machine, in particular in the form of a wheel loader, wherein each receptacle is designed as a slip-on tooth for a tooth holder of a bucket and / or a shovel of a construction machine.

[0040] The invention also relates to a use for detachably fastening the device to a front side of an attachment of a construction machine and for working on an unpaved area of ​​a paved roadway.

[0041] It is understood that with regard to preferred embodiments and advantages of the use according to the invention, reference may be made to the aforementioned advantages and preferred embodiments of the device, which can also apply in the same way to the use according to the invention.

[0042] In a particularly preferred embodiment, the weight of the device is preferably between 20 and 30 kilograms. This represents an optimal compromise between ease of handling and mounting and stability.

[0043] Particularly preferably, the fastening device is secured by at least one securing element or locking means to prevent accidental detachment of the device from the attachment of the construction machine. A locking bolt is preferably used for this purpose.

[0044] In particular, the material used to manufacture the device has a Brinell hardness between 350 and 700, preferably between 420 and 560.

[0045] Further advantages, features, properties and possible applications of the present invention will become apparent from the following description of exemplary embodiments with reference to the drawing and the drawing itself. All described and / or illustrated features, individually or in any combination, form the subject matter of the present invention, regardless of their summary in the claims or their reference back to them.

[0046] It shows: Fig. 1 schematically shows in a perspective view a preferred embodiment of a device according to the invention, which is attached to a front side of an attachment of a construction machine, Fig. 2 schematically shows in a perspective view a section of the device from Fig. 1 together with a section of the attachment from Fig. 1 , Fig. 3 schematically in a perspective view the device from Fig. 1 together with a section of the attachment from Fig. 1 , when attached to the attachment, Fig. 4 schematically shows in a perspective view the device from Fig. 1 , Fig. 5 schematically in another perspective view the device from Fig. 1 , Fig. 6 schematically in another perspective view the device from Fig. 1 , Fig. 7 schematically shows the device from below Fig. 1 , Fig. 8 schematically shows in a perspective view a part of the device Fig. 1 , Fig. 9 schematically shows in another perspective view the part of the device from Fig. 8 and Fig. 10 schematically in a plan view the part of the device from Fig. 8 .

[0047] Fig. 1 shows a schematic perspective view of a preferred embodiment of a device 1 according to the invention. This device 1 is designed for processing an unpaved area 3 adjacent to a paved roadway 2. In the illustrated and preferred embodiment, the paved roadway 2 has a solid surface covering, namely a surface made of asphalt, concrete, tar, or the like. The unpaved area 3 is a shoulder 3 that directly borders an outer side edge of the paved roadway 2.

[0048] The device 1 has a fastening device 4 for detachable fastening to a front side 5 of an attachment 6 of a construction machine 7. In the Fig. 1 In the illustrated embodiment, the fastening device 4 and thus the device 1 are attached to the front 5 of a bucket 6 (which is an attachment 6) of a wheel loader 7 (which is a construction machine 7). Attachment to the front 5 of other attachments 6 for the wheel loader 7 and attachment to the front 5 of the bucket 6 of other construction machines 7 are also possible, although not shown in detail here.

[0049] During the processing of the verge 3 provided here, the wheel loader 7 or the construction machine 7 moves forward, in particular continuously, in the direction of travel F, essentially on the paved roadway 2. The direction of travel F here corresponds to the direction along the paved roadway 2, which preferably runs parallel to the verge 3.

[0050] Due to the forward movement of the wheel loader 7 shown here or the resulting force in the direction of travel F, the unpaved area 3, here a significant part of the verge 3, is processed by means of the device 1.

[0051] In the illustrated and preferred embodiment, the fastening device 4 for releasably fastening the device 1 to the bucket 6 has precisely two receptacles 8 for positive and non-positive connection with two projections 9 present on the front side 5 of the bucket 6. In addition to the two projections 9 used for fastening the device 1, there are further projections 9 on the bucket 6. The two projections 9 used for fastening the device 1 are the ones that are closest to the shoulder 3 of all the projections 9 when working the shoulder 3 - looking at the front side 5 of the bucket 6, these two projections 9 are the projections 9 located furthest to the left on the bucket 6. The projections 9 are part of a toothing and each form a regular shape on the front side 5 of the bucket 6.In other embodiments, however, it is also possible that a cutting edge or a device for gripping and / or drilling is used to fasten the device 1 instead of projections.

[0052] In Fig. 2 is a schematic perspective view of a section of the device 1 from Fig. 1 shown together with a section of the attachment 6 from Fig. 1 Here, the device 1 is not attached to the attachment 6. One of the two receptacles 8 of the fastening device 4 of the device 1 can be seen. One of the projections 9 of the bucket 6 of the wheel loader 7 can also be seen. Fig. 2 clarifies that the illustrated receptacle 8 is designed for a positive and non-positive connection with the illustrated projection 9.

[0053] Fig. 3 shows schematically in a perspective view the device 1 from Fig. 1 together with a section of the attachment 6 from Fig. 1 , wherein the device 1 is fastened to the attachment 6. In the illustrated and preferred embodiment, the two receptacles 8 of the fastening device 4 are inseparably connected to the fastening device 4 by their underside and are arranged horizontally offset from one another on an upper side of the fastening device 4. The distance between the two receptacles 8 is adapted to the distance between the two projections 9 of the attachment 6 used for fastening. In other embodiments, it is possible for more than two receptacles 8 to be provided.

[0054] In the illustrated and preferred embodiment, the receptacles 8 are designed to complement the projections 9, which all have the same shape, in order to achieve a positive and non-positive connection through a type of plug-in system or by plugging. A design in which the receptacles 8 are attached to the front side 5 of the attachment 6 in another way is also possible.

[0055] Preferably, each receptacle 8 is designed as a so-called slip-on tooth 8, which is commercially available as a spare part or wear part for the projections 9 of the attachment 6. Such a slip-on tooth 8 is generally attached to one of the projections 9—also called a tooth holder 9—in a form-fitting and force-fitting manner.

[0056] The receptacles 8 in the embodiment shown here are essentially wedge-shaped, with the upper side of each receptacle 8 preferably being essentially concave. However, the shape of the receptacles 8 may differ from the shape shown here in other embodiments, as this is determined by the projections 9 and / or the front side 5 of the attachment 6.

[0057] In the embodiment shown here, each receptacle 8 has two through-openings 24, wherein the centers of the two through-openings 24 lie on a straight line. Preferably, one through-opening 24 is arranged in each of the two side walls of the receptacle 8. A securing element 21 can be inserted through the two through-openings 24 of each receptacle 8. In the attached state of the device 1, as shown in Fig. 3 As shown, a securing element 21 is arranged in the through-openings 24 for each receptacle 8, wherein the respective securing element 21 penetrates the associated projection 9. Each securing element 21 is designed to prevent accidental detachment of the device 1 from the attachment 6 of the construction machine 7. A securing bolt 21 is particularly preferably used as the securing element 21, which can be fixed via an additional clamping ring.

[0058] The Fig. 4 bis 6 show the device 1 from Fig. 1 schematically, in an unpaved state, in different perspective views. Fig. 7 shows this device 1 schematically in a bottom view. The device 1 has, in addition to the fastening device 4, a penetration part 11 for penetrating the unpaved area 3, which Fig. 4 und 5 not shown in detail, and a deflection part 12 for deflecting material moved by means of the penetration part 11.

[0059] The penetrating part 11 has a processing surface 13. The deflecting part 12 has a processing surface 22. Material of the unpaved area 3 is processed by the processing surface 13 of the penetrating part 11. The material processed by the processing surface 13 of the penetrating part 11 is deflected laterally away from the paved roadway 2 by means of the processing surface 22 of the deflecting part 12. By processing the penetrating part 11, in particular, a trench 14 is created in the unpaved area 3, wherein the trench 14 preferably runs along and / or adjacent to the paved roadway 2, as in Fig. 1 is shown.

[0060] In the context of the present invention, the term trench 14 is preferably understood to mean an elongated, narrow depression which has been created by machining the penetrating part 11 in the unpaved area 3.

[0061] As in Fig. 1 As indicated, the material processed by the penetrating part 11 is redirected by means of the redirecting part 12 in the form of an excavation 15 adjacent and / or parallel to the trench 14.

[0062] In the context of the present invention, the term excavation 15 is to be understood as a quantity of unpaved material which is moved by working the unpaved area 3.

[0063] As in Fig. 4 und 5 As shown, the machining surface 13 of the penetration part 11 and the machining surface 22 of the deflection part 12 are preferably substantially planar and in particular have the shape of a cuboid.

[0064] The edges of the penetration part 11 and the edges of the deflection part 12 are unmachined in the embodiment shown here, but machined edges and / or corners, in particular in the form of a chamfer or rounding, are also possible in other embodiments.

[0065] Particularly preferably, the edges of the penetrating part 11 pointing in the direction of travel F and in the direction of the unpaved area 3 in the installed state of the device 1 can be chamfered. This enables easier initial penetration of the penetrating part 11 into the unpaved area 3 as well as easier ongoing processing of the unpaved area 3.

[0066] Since the penetration part 11 and the deflection part 12 in particular are subject to severe wear, they, in particular like the entire device 1, are preferably made of a wear-resistant steel having a Brinell hardness between 350 and 700, preferably between 420 and 560. However, other materials are also possible in other embodiments, which can achieve at least substantially comparable properties.

[0067] In Fig. 6 The preferred angular position between the processing surface 13 of the penetration part 11 and the processing surface 22 of the deflection part 12 is clearly visible. The two processing surfaces 13, 22 form an obtuse angle A. The angle A is preferably between 100° and 120°; in the embodiment shown here, the angle A is 110°. Due to the angular position of the processing surfaces 13, 22 relative to one another and the force generated by the forward movement of the construction machine 7, the material can be easily processed and easily deflected laterally.

[0068] In the illustrated and preferred embodiment, the width of the deflection part 12 is greater than the width of the penetration part 11. This allows the processed material to be deflected away from the paved roadway 2 and, in addition to the trench 14 created by the penetration part 11, a continuous accumulation in the form of an excavation 15 is created, as shown in Fig. 1 shown.

[0069] The processing surface 13 of the penetrating part 11 preferably has a height of 0.1 m - 0.3 m and a width of 0.15 m - 0.35 m as well as a thickness of 10 mm - 30 mm, wherein the penetrating part of the embodiment shown here has a height of 0.15 m, a width of 0.25 m and a thickness of 16 mm.

[0070] The processing surface 22 of the deflection part 12 preferably has a height of 0.1 m - 0.3 m and a width of 0.4 m - 0.6 m as well as a thickness of 10 mm - 30 mm, wherein the deflection part 12 of the embodiment shown here has a height of 0.15 m, a width of 0.46 m and a thickness of 16 mm.

[0071] In the illustrated and preferred embodiment, the penetration part 11 is arranged laterally offset relative to the receptacles 8, or particularly preferably laterally offset relative to a side wall 17 of the attachment 6 facing the unpaved area 3. This allows the penetration part 11 to penetrate into the unpaved area 3 while the construction machine 7, or in the Fig. 1 illustrated embodiment, the wheel loader 7 moves at least substantially on the paved roadway 2.

[0072] As can be seen from the Fig. 4-7 As can be seen, the device 1 has a guide means 19. The guide means 19 is designed to guide the device 1 along the paved roadway 2, in particular along an outer edge of the paved roadway. This promotes uniform and precise processing of the unpaved area 3.

[0073] Particularly preferably, a flat side of the guide means 19, which faces away from the penetration part 11 and the deflection part 12, is moved parallel to an edge of the paved roadway 2. The guide means 19 serves as a reference point for the operator of the construction machine 7 (not shown here) to align the device 1 with high precision.

[0074] The guide means 19 is preferably designed as a rib-like reinforcement or reinforcing rib and is connected to the fastening device 4 and the penetration part 11, wherein the guide means 19 is arranged at a particular right angle to the fastening device 4.

[0075] The guide means 19 contributes to the stability of the entire device 1 and enables a distribution of the forces acting on the penetrating part 11, which arise from the processing of the unfastened area, to the fastening device 4.

[0076] Furthermore, the device 1 can have a stiffening element 20, which is particularly rod-shaped and additionally connects the guide means 19 to the penetration part 11. In addition to the design of the guide means 19 as a reinforcing rib, the stiffening element 20 promotes the transfer of the forces acting on the penetration part 11 to the fastening device 4 and thus supports the overall stability of the device 1.

[0077] Particularly preferably, the stiffening element 20 is connected to the penetration part 11 as centrally as possible with respect to the width and height of the latter in order to ensure optimal force distribution.

[0078] In a particularly preferred embodiment, the device 1 consists only of the fastening device 4, the penetration part 11, the deflection part 12, the guide means 19 and the stiffening element 20, as shown in the Fig. 4-7 shown, and accordingly has no joints and / or moving parts. This – due to the fixed conditions and dimensions of the device 1 – promotes precise and uniform processing of the unpaved area 3 and, at the same time, significantly reduces the required maintenance effort.

[0079] The Fig. 8-10 show schematically in two perspective views and a plan view a part of the device from Fig. 1 , namely the fastening device 4.

[0080] The Fig. 8-10 The fastening device 4 shown comprises a plate 10, which has a front wall 16 - which is preferably chamfered - a rear wall 25 and two side walls 18, 26. One of the side walls 18, 26 represents an obliquely running side wall 18 and forms an acute angle B to the rear wall 25 of the fastening device 4. The angle B is preferably 25° to 40°, in this embodiment the angle B is approximately 37°. Due to the acute angle B, the plate 10 or the entire fastening device 4, as shown in the plan view in Fig. 10 shown, formed as a right-angled trapezoid.

[0081] The front wall 16 of the plate 10 fastening device 4 can have a length of 0.2 m - 0.6 m. In the illustrated embodiment, the front wall 16 has a length of 0.4 m. The rear wall 25 is preferably 0.4 m - 0.8 m long. In the illustrated embodiment, the rear wall 25 has a length of 0.6 m.

[0082] The length of the inclined side wall 18 is preferably 0.15 m - 0.35 m, here 0.25 m. The length of the other side wall 26 is preferably 0.1 m - 0.3 m, here 0.15 m.

[0083] The plate 10 of the fastening device 4 preferably has a thickness of 10 mm - 30 mm; in the embodiment shown here, the plate 10 has a thickness of 16 mm.

[0084] Particularly preferably, the penetration part 11 and the deflection part 12 are welded to the inclined side wall 18. Due to the angular position and dimensions, a sufficiently wide trench 14 can be created by means of the penetration part 11, which, however, does not cause excessive resistance to the longitudinal advance of the construction machine 7 due to the acute angle B.

[0085] In the illustrated and preferred embodiment, the weight of the device 1 is between 20 kg and 30 kg, in particular 25 kg.

[0086] In the illustrated and preferred embodiment, each receptacle 8 has a cavity 23 in which a part of a projection 9 of the attachment 6 can be received, as shown in Fig. 2 The opening of the cavity 23 preferably lies in a vertical plane with the rear wall 25 of the plate 10 of the fastening device 4 and is essentially polygonal, in particular rectangular, preferably square. However, the receptacle 8 can also have other shapes in other embodiments.

[0087] Processed material which is not diverted as expected and accumulates on the paved roadway 2 can be collected in the attachment 6 of the construction machine 7 by means of the particularly chamfered front wall 16 of the plate 10 and then unloaded next to the paved roadway 2.

[0088] The device 1 described above is used in such a way that it is detachably attached to the front 5 of the attachment 6 of the construction machine 7 and the unpaved area 3 is then worked by means of the device 1. Bezugszeichenliste:

[0089] 1Device 2Paved roadway 3Unpaved area 4Fastening device of 1 5Front of 6 6Attachment of 7 7Construction machine 8Receptacle of 4 9Protrusion of 6 10Plate of 4 11Penetrating part of 1 12Deflection part of 1 13Working surface of 11 14Trench of 3 15Excavation 16Front wall of 10 17Side wall of 6 18Sloping side wall of 10 19Guide means of 1 20Bracing element of 1 21Securing element of 1 22Working surface of 12 23Cavity of 8 24Through opening of 8 25Rear wall of 10 26Further side wall of 10 AAcute angle between 11 and 12 BObject angle between 18 and 25 FDirection of travel

Claims

1. Device for processing an unpaved area (3) adjacent to a paved roadway (2), characterized in that the device (1) has a fastening device (4) for releasably fastening the device (1) to a front side (5) of an attachment (6) of a construction machine (7).

2. Device according to claim 1, characterized in that the fastening device (4) for releasably fastening the device (1) to the attachment (6) has at least one receptacle (8) for positive and / or non-positive connection to a projection (9) present on the front side (5) of the attachment (6).

3. Device according to claim 2, characterized in that the fastening device (4) has exactly two receptacles (8) for the positive and / or non-positive connection with a projection (9) of the attachment (6).

4. Device according to claim 2 or 3, characterized in thateach receptacle (8) has a cavity (23) in which a part of a projection (9) of the attachment (6) can be received.

5. Device according to one of claims 2 to 4, characterized in that each receptacle (8) is designed to complement a projection (9) of the attachment (6).

6. Device according to one of claims 2 to 5, characterized in that each holder (8) can be plugged onto a projection (9) of the attachment (6).

7. Device according to one of claims 1 to 6, characterized in that the device (1) has a penetration part (11) for penetrating the unpaved area (3) and a deflection part (12) for deflecting material moved by means of the penetration part (11), and that the penetration part (11) has a processing surface (13) and the deflection part (12) has a processing surface (22), which are arranged at an obtuse angle (A), preferably in the range between 100° and 120°, to one another.

8. Device according to claim 7, characterized in thatthe width of the deflection part (12) is greater than the width of the penetration part (11).

9. Device according to one of claims 2 to 6 and one of claims 7 to 8, characterized in that the penetration part (11) is arranged laterally offset relative to the receptacle (8).

10. Device according to one of claims 7 to 9, characterized in that the fastening device (4) comprises a plate (10) which has a front wall (16), a rear wall (25) and two side walls (18, 26), that one of the side walls (18) runs obliquely and forms an acute angle, preferably in the range between 25° and 40°, to the rear wall (25) and that the penetration part (11) and the deflection part (12) are attached to the obliquely running side wall (18), preferably by means of a weld.

11. Device according to one of claims 1 to 10, characterized in thata guide means (19) is provided for guiding the device (1) on the paved roadway (2), preferably wherein the guide means (19) is connected to the fastening device (4) and the penetration part (11).

12. Device according to one of claims 2 to 6 and one of claims 7 to 10 and claim 11, characterized in that the device (1) consists of the fastening device (4), the deflection part (12), the penetration part (11), the guide means (19) and a stiffening element (20).

13. Device according to one of claims 1 to 12, characterized in that the fastening device (4) is designed for the detachable fastening of the device (1) to a front side (5) of a bucket (6) and / or a shovel (6) of a construction machine (7), in particular in the form of a wheel loader (7).

14. Device according to claim 13, characterized in thateach receptacle (8) is designed as a slip-on tooth (8) for a tooth holder (9) of a bucket (6) and / or a shovel (6) of a construction machine (7).

15. Use of a device according to one of claims 1 to 14 for detachably fastening the device (1) to a front side (5) of an attachment (6) of a construction machine (7) and for working an unpaved area (3) adjacent to a paved roadway (2).

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