EP2255047B1 - Scraper for scraping off materials from a substrate - Google Patents

Description

The invention relates to a scraper according to the preamble of claim 1.

In building renovations or the like, are often flooring, wall coverings or roof coverings from a substrate, the floor, the wall or the roof to be replaced or removed. Often, such documents, in particular building flooring such as PVC floors, carpets, parquet or laminate floors, with adhesives to the substrate, usually a screed or floor boards, glued. In these cases, the coverings and the adhesive layers adhere particularly strongly to the substrate. To remove such coverings and / or the adhesive layers are scrapers, such as hand scraper, scraper or stripper used, the known scraper having a fixing part for attaching a scraper blade and wherein by advancing a front cutting edge of the scraper blade along the substrate to be detached materials scraped off the ground. The scraper blade is made of a metallic sheet or a piece of sheet metal having at one end a mounting portion which can be clamped between an upper attachment piece and a lower attachment piece of the attachment part. The attachment pieces of the attachment part are for this purpose designed such that when connecting the attachment pieces a recess for receiving the doctor blade is formed.

When scraping the already separated from the substrate material parts are transported by nachgebendes scraped material on the top of the doctor blade in the direction of the fastening part. There, the abraded materials abut against the fastener, resulting in damage to the fastener and increased wear in this area. In particular, in manually operable scrapers, the contact of scraped material components with the fastening part moreover leads to increased resistance in scraping the substrate, so that the detachment of the materials from the substrate is cumbersome. If material components can not be scraped off the substrate during scraping, they may abut against the fastening part on the underside of the doctor blade during further advancement of the doctor blade, which likewise leads to increased wear of the fastening part and can lead to an increased force during scraping.

From the US-A-5,280,676 and the US-A-6,029,545 go out each scraper, which have an obliquely to the doctor blade extending fastening part to which a handle is attached. The handle is at an angle to the doctor blade. Due to the obliquely protruding handle, the arrangement of the scraper is predetermined to the ground. The scraper blade must be placed towards the bottom while the handle protrudes upwards. In the from the US-A-5,280,676 known scrapers, a central region of the fastening part is angled relative to the front region of the fastening part, so that scraped material is derived in the region of the bend. In the from the US-A-6,029,545 Known scraper, a U-fözmige reinforcing rib is provided on the attachment part, which may also serve to derive abgeschabtem material.

From the US-A-5,924,204 goes out a scraper, which has an arrow-shaped scraper blade in cross-section, which is not made of flat material and which is a relatively expensive component that can be manufactured at considerable cost. The sections of the doctor blade forming the arrow shape can basically be understood as guide sections. These arrow-shaped sections extend over the entire length of the doctor blade.

Object of the present invention is to provide a scraper of the type mentioned above available with which materials can be solved from the ground in a simple manner and scraped material can be removed as easily as possible from the scraper.

The above object is achieved by a scraper with the features of claim 1. In this regard, a plurality of juxtaposed and spaced apart guide portions for draining scraped material over at least one leading edge of the attachment member are provided such that a highest point of an upper-side baffle is above an upper bump and / or a lower baffle below a baffle lower abutting edge of the fastening part is arranged or aligned with the abutting edge, wherein further provided according to the invention that the guide sections are made by forming the metallic sheet.

By the guide sections ensures that it can not come to a contact of scraped material components with a front, for example, frontal abutting edge of the fastening part during scraping. By the guide sections, the trailing scraped material is automatically guided past the upper or lower abutting edge of the fastening part, so that there is no wear on the fastening part of the scraper when scraping off the material and the scraping process requires only low compressive forces. The guide section has on the upper side a guide surface, which is angled relative to the scraping surface and / or bent in order to ensure the discharge of scraped off material. Toward a front scraping or cutting edge, the guide section of the doctor blade passes without interruption into the scraping section. In principle, it is also possible for the doctor blade to have an arcuate course extending from a front scraping edge to a highest point of the top-side guide surface, with a constant curvature direction, the transition between the scraping surface and the guide surface being fluid. Preferably, however, the scraping surface is formed as a straight or planar portion of the doctor blade, wherein the transition of the scraping surface in the guide surface is made stepless or the adjoining surfaces are aligned. This simplifies the discharge of scraped material.

If a low point of a lower-side guide surface of the guide section is arranged below a lower abutting edge of the fastening part or aligned with the abutting edge, the lower guide surface during scraping ensures that the fastening part does not abut against the substrate against the substrate firmly adhering to a scraping process without shaving off material components strikes. When advancing the scraper then it comes at best to a slight lifting of the fastening part in consequence of the non-scraped-off material components. Incidentally scraped material components are also passed on the underside of the doctor blade on the fastening part over.

The term "forming" is to be understood in the context of the invention as a generic term for all manufacturing processes in which metals are selectively brought plastically into another form. Plastic deformations of metallic materials occur through flow, with changes in shape occurring as load increases. Forming processes which may be used in connection with the invention include, for example, pressure forming, draw-forming, draw-forming and bending-forming.

In order to enable a detachment of adhering to the doctor blade material on the one hand and on the other hand, the derivation of the material at a collision edge of the fastening part, a plurality of guide sections are provided according to the invention, wherein the guide sections extend transversely to the Abschabrichtung partially over the doctor blade and by section forming the metallic flat material are made. In this connection, in a preferred embodiment of the invention, the guide sections are arranged side by side and spaced from one another transversely to the Abschabrichtung. This results in a continuous series of reshaped areas of the scraper blade, which are surrounded by non-reshaped areas.

The metallic flat material preferably has a substantially constant thickness in the scraping direction over the entire embedding of the doctor blade. In this context, the term "substantially" takes into account the fact that during the forming process an unwanted small change in the sheet thickness can occur. By using forming processes can be inexpensively and easily produce high quantities of scraper blade according to the invention. Moreover, it is easily possible to reshape the metallic flat material targeted at certain points, with the shape and size of the forming areas are required, as required. By using forming methods metallic flat materials can be used with a very small thickness as a doctor blade and are formed according to guide sections in the sheet.

Due to the low material thickness of the material, it is also easy to scrape off a coating from a substrate. Moreover, the grinding of the doctor blades is easily possible, with ground doctor blades have a greater sharpness than, for example, doctor blades, which can be worked out of a metallic sheet with a greater thickness by milling. Compared to these flat materials with greater thickness, the doctor blades of thin metal sheet according to the invention also have a higher flexibility, which makes it easier when peeling in the area between a covering and a Penetrate underground. In this connection, the scraper blade according to the invention may have a thickness of 0.25 to 2.0 mm, preferably between 0.5 to 1.5 mm, in particular between 0.75 to 1.0 mm.

The width of doctor blades, which are used for hand-operated scraper can be between 15 to 30 mm, preferably about 20 mm. The length of the aforementioned doctor blades is in this case between 100 to 300 mm, preferably up to 200 mm. Scraper blades for so-called stripper can extend transversely to the scraping direction over a length of 200 to 400 mm, wherein the extension of the doctor blades in Schabrichtung between 40 to 80 mm, preferably about 60 mm, may be. Moreover, the doctor blades of the type in question have a majority of rectangular shape with partly rounded corners. In order to ensure a secure mounting of the blade on the scraper, the scraper blade is preferably clamped across the entire embedding of the blade transversely to the scraping direction in the fastening part.

The doctor blade can also be hardened differently, wherein in the region of the scraping edge the doctor blade should have the greatest hardness. This contributes to a low wear of the doctor blade during Abschabvorgang.

Preferably, the guide section passes without interruption into the attachment section. The guide portion can be obtained in this case by pressing the metallic sheet, without it comes to a rupture or puncture of the sheet material when pressed. The scraper blade has in this case over the entire length and width of a continuous surface, so that scraped material components can be derived substantially completely over the guide section. In another embodiment of the invention, a guide portion may be obtained by raising or bending a stamped sheet metal portion so that the doctor blade has an interruption in the transition area between the guide portion and the mounting portion.

The attachment portion may be formed as a straight or planar clamping area, which allows a firm clamping in the fastening part of the scraper. In addition, a holding area which transitions into the guide section and which is developed relative to the clamping area and / or bent be provided, wherein, more preferably, the holding area relative to the clamping area by about 30 ° to 90 ° can be angled upwards and / or downwards or bent. With appropriate design of the fastening part, the holding region can contribute to a secure fixation of the doctor blade in the fastening part. In this context, it may be provided in a scraper of the type mentioned that the recess formed between the attachment pieces of the fastening part has a first preferably flat recess portion for the clamping portion of the mounting portion and a second recess portion connected to the first recess portion for the holding portion of the mounting portion the second recess region is angled and / or bent relative to the first recess region, and wherein the second recess region has the outlet opening.

In this connection, the outlet opening of the recess is preferably provided on the upper side or a lower side of the fastening part, wherein the planar fastening section of the blade can be clamped substantially horizontally between the fastening pieces. In this embodiment, the outlet opening is not provided in the region of the central longitudinal axis of the fastening part. The shape or the course of the recess between the attachment pieces in Abschabrichtung is adapted to the shape of the Befestigungsabsclmitts the doctor blade.

In principle, however, it is also possible that the holding portion of the doctor blade is arranged after clamping in the fastening part outside of the fastening part, for example, an end face of the fastening part bears against the holding area, so that the doctor blade is held securely at the Abschabvorgang to the fastening part and on the Holding portion a part of the necessary pressure during the scraping force is introduced into the doctor blade.

In order to simplify the scraping of pad residue, the scraping portion may be formed as a flat flat area. The scraping section and the clamping region of the fastening section can moreover be arranged in a common plane, wherein the guide section is angled and / or bent downwards and / or downwards relative to the plane. Are the scraping portion and the clamping portion of the mounting portion in a common Plain arranged, high pressure forces during scraping on the doctor blade can be transferred to a substrate in a simple manner.

The guide section preferably has a pitch and / or a pitch of less than 30 °, preferably less than 20 °. As a result, the safe and complete dissipation of scraped materials is ensured with little effort and reduces the Umformaufwand in producing the guide. The holding region of the fastening section and the guide section can have an equally large pitch or an equally large slope, so that the doctor blade according to the invention has, in a longitudinal section, a profiled shaft whose flanks are formed by the retaining area on the one hand and the guide section on the other hand. This embodiment is easy to prepare and allows scraping with little effort.

The distance between the highest point of an upper-side guide surface or the low point of a lower-side guide surface and the central longitudinal axis of the scraping section and / or the central longitudinal axis of the fastening section of the blade may be less than 10 mm, preferably less than 5 mm, in particular less than 3 mm. As a result, the Umformaufwand is reduced and the power line disturbed by the doctor blade only slightly compared to the power line by a straight or flat unformed doctor blade.

As has already been pointed out above, the scraper surface and the guide surface should be aligned in order to ensure easy discharge of scraped off material. In this context, the guide section may have a rounded Ableitkante in the transition region to the mounting portion, which causes the scraped material is automatically released by the nachababende during Abschabvorgang material from the doctor blade and transported away over a joint edge of the fastening part away.

Preferably, the scraper blade is ground on both sides in a hand scraper. The front end of the Schababschnitts then has on the bottom and on the top of each bevel, so that both sides of the doctor blade can be used for scraping. However, the one-sided grinding a scraper blade can be advantageous because it leads to a self-sharpening of Blade comes when scraping. On one side ground doctor blades can preferably be used in strippers in this context.

Fig. 1

einen aus dem Stand der Technik bekannten Schaber mit einer Schaberklinge zum Abschaben von Materialien von einem Untergrund,

Fig. 2

eine erste Ausführungsform eines erfindungsgemäßen Schabers in einer Längsseitenansicht,

Fig. 3

eine zweite Ausführungsform eines erfindungsgemäßen Schabers in einer Längsseitenansicht,

Fig. 4

eine dritte Ausführungsform eines erfindungsgemäßen Schabers in einer Längsseitenansicht,

Fig. 5

eine vierte Ausführungsform eines erfindungsgemäßen Schabers in einer Längsseitenansicht,

Fig. 6

eine fünfte Ausführungsform eines erfindungsgemäßen Schabers in einer Längsseitenansicht,

Fig. 7

eine sechste Ausführungsform eines erfindungsgemäßen Schabers in einer Längsseitenansicht,

Fig. 8

eine siebte Ausführungsform eines erfindungsgemäßen Schabers in einer Längsseitenansicht,

Fig. 9

eine erfindungsgemäße Schaberklinge in einer Längsseitenansicht,

Fig. 10

eine weitere erfindungsgemäße Schaberklinge in einer Längsseitenansicht,

Fig. 11

eine Draufsicht auf die Schaberklinge des in Fig. 2 dargestellten Schabers,

Fig. 12

eine Draufsicht auf die Schaberklinge des in Fig. 7 dargestellten Schabers,

Fig. 13

eine zweite Ausführungsform einer Schaberklinge der in Fig. 9 dargestellten Art in einer Draufsicht,

Fig. 14

eine dritte Ausführungsform einer Schaberklinge der in Fig. 9 dargestellten Art in einer Draufsicht und

Fig. 15

eine Draufsicht auf die in Fig. 8 dargestellte Schaberklinge.

The invention will be explained by way of example with reference to the drawing. In the drawing show

Fig. 1

a scraper known from the prior art with a scraper blade for scraping materials from a substrate,

Fig. 2

a first embodiment of a scraper according to the invention in a longitudinal side view,

Fig. 3

a second embodiment of a scraper according to the invention in a longitudinal side view,

Fig. 4

a third embodiment of a scraper according to the invention in a longitudinal side view,

Fig. 5

A fourth embodiment of a scraper according to the invention in a longitudinal side view,

Fig. 6

A fifth embodiment of a scraper according to the invention in a longitudinal side view,

Fig. 7

A sixth embodiment of a scraper according to the invention in a longitudinal side view,

Fig. 8

A seventh embodiment of a scraper according to the invention in a longitudinal side view,

Fig. 9

a scraper blade according to the invention in a longitudinal side view,

Fig. 10

a further scraper blade according to the invention in a longitudinal side view,

Fig. 11

a top view of the doctor blade of in Fig. 2 illustrated scraper,

Fig. 12

a top view of the doctor blade of in Fig. 7 illustrated scraper,

Fig. 13

a second embodiment of a scraper blade of in Fig. 9 shown in a plan view,

Fig. 14

a third embodiment of a doctor blade of in Fig. 9 shown type in a plan view and

Fig. 15

a top view of the in Fig. 8 illustrated scraper blade.

In Fig. 1 a hand scraper 1 known from the prior art is shown, which has a fastening part 2 and a doctor blade 3. The fastening part 2 is formed in two pieces and has an upper fastening piece 4 and a lower fastening piece 5. The scraper 1 is provided for scrapping materials, not shown, from a substrate, the scraper blade 3 having at a front end a chamfer 6 on the underside of the scraper blade 3 and on the upper side a scraper surface 7. The scraper blade 3 is clamped starting from the central region to a rear end in a recess formed between the upper attachment piece 4 and the lower attachment piece 5, wherein the rear end face 8 of the scraper blade 3 acts against the lower attachment part 5 during scraping.

During Abschabvorgang in Abschabrichtung X the scraped material components are transported against the Abschabrichtung X on the scraping surface 7 and possibly also along the underside of the doctor blade 3 in the direction of a front end face 9 of the fastening part 2. This is shown schematically by the arrows Y. The material components abut against the end faces 9, wherein the end faces represent 9 abutting edges in the sense of the invention. When contacting the scraped material with the abutting edges of the fastening part 2, it comes to abrasion on the outer surface of the fastening part 2, which can lead to the destruction of the hand scraper 1 and the secure fixation of the doctor blade 3 between the attachment pieces 4, 5 at risk. Furthermore increases the force required in Abschabvorgang for scraping the material components.

In the Fig. 2 to 16 each scraper blades 10 are shown, which consist of a metallic sheet material and for use in a in the Fig. 2 to 8 shown scraper 11 are formed for scraping materials from a substrate. The scraper blade 10 has in each case at a front end a scraper section 13 having at least one scraper surface 12, wherein the scraper blades 10 shown can have scraper sections 13 of different lengths. Incidentally, each scraper blade 10 has at its rear end a fixing portion 14 for fixing to a fixing part 15 of the scraper 11. The fastening part 15 is also divided in two and has an upper fastening piece 16 and a lower fastening piece 17.

Each scraper blade 10 has at least one central guide section 18 for discharging scraped-off material over at least one front abutment edge 19 of the attachment part 15, the guide section 18 being obtainable by reshaping the scraper blade 10. As is clear from the Fig. 6 to 8 For example, the scraper blade 10 may include a conductive portion 18 having an upper-side baffle 22 for draining scraped-off material over an upper abutment edge 19 and another conductive portion 20 having a lower-side conductive surface 29 for discharging scraped material over a lower abutment edge 21. In the in the Fig. 2 and 5 illustrated embodiments, the discharge of scraped material on the underside of the scraper blade 10 is effected in that the central longitudinal axis X _{1 of} the scraping section 13 is offset relative to the central longitudinal axis X _{2 of} the planar portion of the mounting portion 14 down so that the scraped material not against against scraping the lower abutting edge 21 abuts.

By deriving scraped-off material via the guide section 18, 20, it is ensured that scraped-out material can not cause wear of the fastening part 15 in the area of the front abutment edge 19, 21. Moreover, by diverting the scraped material scraping a floor covering with less effort possible.

The guide section 18 is bent or angled upwards or downwards relative to the straight scraper section 13, wherein the guide section 18, 20 preferably has a pitch and / or a gradient of less than 30 °, preferably less than 20 ° , may have. In the in the Fig. 6 and 7 shown doctor blade 10, the slope of the other guide section 20, however, is about 30 ° to 45 ° to ensure the safe deriving of scraped material on the bottom. Incidentally, in all embodiments, the scraping section 13 seamlessly merges with the guide section 18 with the scraping surface 12 and the upper-side guide surface 22 of the guide section 18 in alignment. It is not shown that the scraper blade 10 between a highest point 23 of the upper-side guide surface 22 and a scraping edge 24 may have a curved course with rectified curvature.

The doctor blades 10 have in the Abschabrichtung X a substantially constant thickness d over the entire embedding, wherein the thickness between 0.25 to 2.0 mm, preferably between 0.5 to 1.5 mm, may be. In the in the Fig. 2 and 5 illustrated embodiments, the scraping section 13 is arranged offset downwards so far that the scraping no Inkontakttreten the front side of the lower attachment piece 17 with non-scraped-off material components or unevenness of the soil must be feared. In the in the 3 and 4 As well as FIGS. 6 to 8 illustrated embodiments, the scraping section 13 designed as a flat flat area and a planar clamping area 25 of the fastening section 14 are arranged in a common plane, wherein the guide section 18, 20 is angled upward or downward relative to the common plane.

The fastening section 14 may have a holding region 26 which is angled and / or bent relative to the clamping region 25, as shown in FIGS Fig. 2 . 3 . 4 . 5 and 7 is shown. For this purpose, a recess formed between the upper fastening piece 16 and the lower fastening piece 17 of the fastening part 15 has a first preferably flat recess area for the clamping area 25 of the fastening portion 14 and a second recess area connected to the first recess area for the angled and / or bent retaining area 26 the fastening portion 14, wherein the second recess portion opposite to Angled first recess area and / or bent. As a result, a secure mounting of the doctor blade 10 is ensured on the fastening part 15. In the in the Fig. 2 . 3 and 4 illustrated embodiments, the upper attachment piece 16 has an outlet opening 27 for the doctor blade 10. At the in Fig. 7 embodiment shown, the outlet opening in the lower attachment piece 17 is provided, wherein the second recess portion opens into the outlet opening 27. As it turned out Fig. 5 results, the fixing member 15 can also strike with an end face against the holding portion 26, so that the scraper blade 10 is held securely on the fastening part 15 and the power transmission is simplified during Abschabvorgang. At the in Fig. 5 illustrated embodiment, the holding portion 26 is thus arranged outside of the fastening part 15.

As can be seen in particular Fig. 3 yields, the holding portion 26 of the mounting portion 14 and the guide portion 18 may have an equal slope, so that the in Fig. 3 scraper blade 10 shown in a longitudinal sectional view has a profiled shaft. This in Fig. 3 profile shown can be easily produced.

Moreover, it is only necessary because of the small thickness d of the doctor blades 10 for deriving abgeschabtem material to reshape the doctor blade 10 to a small extent. The distance a ₁ , a ₂ , a ₃ between the highest point 23 and / or a low point 28 of the guide surface 22, 29 and the central longitudinal axis X _{1 of} the scraping section 13 and / or the central longitudinal axis X _{2 of} the clamping portion 25 of the mounting portion 14 may therefore be less than 10 mm, preferably less than 5 mm, in particular less than 3 mm. This is schematic in the Fig. 2 and 7 shown.

Moreover, the scraper blade 10 in the transition region of the guide portion 18 to the attachment portion 14 each have a rounding to prevent abutment of scraped material against the doctor blade 10 in this area and to promote the detachment of the scraped material from the doctor blade 10.

Moreover, the scraping section 13 may be chamfered in the region of the scraping edge 24 on the underside and / or on the upper side. The in the Fig. 6 to 8 illustrated embodiments have doctor blades 10 which are ground on both sides. By the selected shape of the doctor blades 10 with an upper guide portion 18 and a lower guide portion 20, as in the Fig. 6 and 7 represented, or by mirror-symmetrically arranged guide sections 18, 20 according to Fig. 8 , It is possible to use the scraper blade 10 on both sides for scraping and at the same time pass by scraped material safely on the Befentigungsteil 15.

In the FIGS. 9 and 10 two further embodiments of doctor blades 10 are shown, wherein the in Fig. 9 shown doctor blade 10 has a guide portion 18 which is available by pressing the doctor blade 10. The doctor blade 10 in this case has an uninterrupted profile which extends from the front scraping edge 24 to the rear end of the attachment portion 14. At the in Fig. 10 illustrated embodiment, however, the guide portion 18 is obtained by punching the doctor blade 10 and then bending the stamped area. In this case, the scraper blade 10 is interrupted in the transition region between the attachment portion 14 and the guide portion 18.

In Fig. 11 is the in Fig. 2 shown scraper blade 10 shown in a view from above. In Fig. 12 is the in Fig. 7 shown scraper blade shown in a view from above. As is clear from the FIGS. 11 and 12 results, the guide section 18, 20 extends over the entire length of the scraper blade 10. In the Fig. 13 to 15 scraper blades 10 are shown, which have a plurality of guide sections 18, 20, wherein the guide sections 18, 20 extend transversely to the Abschabrichtung adjacent to each other and spaced from each other on the doctor blade 10. The guide sections 18, 20 are available by pressing or pressing the flat material. According to Fig. 15 It can also be provided that in different directions angled or bent guide sections 18, 20 are provided adjacent to each other. As a result, on the one hand, the removal of scraped off material from the scraper blade 10 is ensured. On the other hand, the detachment of scraped off material from the scraper blade 10 is facilitated.

Claims (13)

1. A scraper (11) for scraping materials from a substrate, comprising a scraper blade (10) of a metallic flat material, and a fastening part (15) for fastening the scraper blade (10), the scraper blade (10) being provided at the front end with a scraping section (13) having at least one scraping surface (12) for scraping the material, and at the rear end with a fastening section (14) to be fastened to the fastening part (15) of the scraper (11), characterized in that on the scraper blade (10), a plurality of adjacent and mutually spaced apart guide sections (18, 20) for removing scraped off material via at least one front edge (19, 21) of the fastening part (15) is provided, with the guide sections (18, 20) extending transversely to the scraping direction (X) in certain areas across the scraper blade and being made by shaping the metallic flat material in sections.
2. The scraper according to claim 1, characterized in that the metallic flat material has a same thickness (d) in the area of the scraping section (13), the fastening section (14), and the guide section (18, 20).
3. The scraper according to claim 1 or 2, characterized in that the guide section (18, 20) continuously transitions to the fastening section (14).
4. The scraper according to any of the preceding claims, characterized in that the fastening section (14) has a preferably level mounting area (25), and preferably at least one holding area (26) transitioning to the guide section (18, 20) and being angled and/or bent with respect to the mounting area (25), wherein more preferably, the holding area (26) is angled upward and/or downward with respect to the mounting area (25) by approximately 30° to 90°.
5. The scraper according to any of the preceding claims, characterized in that the scraping section (13) is made as a level flat area, and that preferably the scraping section (13) and the mounting area (25) of the fastening section (14) are arranged in a common plane.
6. The scraper according to any of the preceding claims, characterized in that the guide section (18, 20) has a slope and/or gradient of less than 30°, preferably less than or equal to 20°.
7. The scraper according to any of the preceding claims, characterized in that the holding area (26) of the fastening section (14) and the guide section (18) have an equal slope or equal gradient.
8. The scraper according to any of the preceding claims, characterized in that the spacing (a₁, a₂, a₃) between the highest point (23) and/or the low point (28) of the guide surface (22, 29) and the median longitudinal axis (X₁) of the scraping section (13) and/or the median longitudinal axis (X₂) of the mounting area (25) of the fastening section (14) is less than 10 mm, preferably less than 5 mm, in particular less than 3 mm.
9. The scraper according to any of the preceding claims, characterized in that the scraping surface (12) and the guide surface (22) are aligned to be flush.
10. The scraper according to any of the preceding claims, characterized in that the guide section (18) has a rounded removal edge in the transition area to the fastening section (14).
11. The scraper according to any of the preceding claims, characterized in that the front end of the scraping section (13) is beveled on the bottom side and/or on the top side.
12. The scraper according to any of the preceding claims, characterized in that on the top or bottom side, guide sections (18, 20) are provided on the scraper blade (10).
13. The scraper according to any of the preceding claims, characterized in that the guide sections (18, 20) are made by punching the scraper blade (10) in and subsequently bending the punched-in area up.

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