EE05739B1

EE05739B1 - Plough blade holder of a road maintenance vehicle

Info

Publication number: EE05739B1
Application number: EEP201100057A
Authority: EE
Inventors: Raoul Renser
Original assignee: Meiren Engineering OÜ
Priority date: 2011-10-10
Filing date: 2011-10-10
Publication date: 2015-02-16
Also published as: PL2581496T3; EP2581496B1; EP2581496A2; EP2581496A3; EE201100057A

Abstract

The invention is related to plough blade holder of a road maintenance vehicle, wherein the blade holder is made of elastically deforming, including elastomer material, wherein with this blade holder provided with the blade it is enabled to follow unevenness of the processed surface. The blade holder of the invention comprises a part made of elastically deforming material, which has one or several air filled hollow spaces. Therefore the blade holder moves similarly to paralelogram (four-bar chain). Besides that, due to one or several air filled hollow spaces the blade holder deforms more easily, compared to similar constructions without hollow space. The blade holder of the present invention consists of modules placed beside each other in an alternative embodiment

Description

Tehnikavaldkond Technical field

Leiutis kuulub masinaehituse, täpsemalt teede ja suurte pindade hooldusvahendite terade konstruktsioonide valdkonda. The invention belongs to the field of mechanical engineering, more specifically to the design of blades for road and large surface maintenance tools.

Tehnika tase State of the art

Tehnika tasemest on tuntud teedehooldusmasinate, sealhulgas skreeperite ja lumesahkade terade konstruktsioonid. The prior art is known for the construction of blades for road maintenance machines, including scrapers and snowplows.

Patenditaotluse publikatsioon WO 2004/031490 avalikustab terahoidja kanduri, mis ühendab tera lumepuhastusseadme alumise osaga, nii et terale on antud kindel nurk teepinna suhtes. Terahoidja võimaldab tera alumisel osal teel oleva takistuse puhul tagasi painduda, vältides nii tera võimalikku kahjustust. Pärast takistust taastub tera esialgne asend. Publikatsioonis WO 2004/031490 avalikustatu on käesolevale leiutisele lähim teada olev lahendus. Patent application publication WO 2004/031490 discloses a blade holder carrier that connects the blade to the lower part of a snow removal device, so that the blade is given a certain angle with respect to the road surface. The blade holder allows the lower part of the blade to bend back in the event of an obstacle on the road, thus preventing possible damage to the blade. After the obstacle, the blade returns to its original position. The disclosure in publication WO 2004/031490 is the closest known solution to the present invention.

US5743032 avalikustab teehöövli tera, eelistatult lumehöövli tera konstruktsiooni, milline tera on ette nähtud kinnitamiseks eelistatult traktori või veoauto külge. Teehöövli tera konstruktsioon koosneb raamist, mis kujutab endast tasapinnalist osa, mis on eemaldatavalt kinnitatud teehöövli külge, mitmest teraplaadist, mis katavad ettenähtud töölaiuse, kusjuures tasapinnalise osa ja teraplaatide vahel on elastsest materjalist osa, mis on ette nähtud lubama teraplaatidel liikuda ainult ühes suunas, kui teraplaat puutub vastu takistust. US5743032 discloses a construction of a grader blade, preferably a snow grader blade, which blade is intended to be attached preferably to a tractor or truck. The construction of the grader blade consists of a frame, which is a flat part, which is removably attached to the grader, a plurality of blade plates covering a predetermined working width, wherein between the flat part and the blade plates there is a part of elastic material, which is intended to allow the blade plates to move in only one direction when the blade plate contacts an obstacle.

DE 2519112 avalikustab teehöövli konstruktsiooni, milles teehöövli hõlma külge on tera ühendatud elastse vaheosaga, mis võimaldab teral takistuse olemasolul pöörduda ja seejärel oma endisesse asendisse tagasi pöörduda. DE 2519112 discloses a construction of a grader in which a blade is connected to the front of the grader by a flexible intermediate part, which allows the blade to turn in the presence of an obstacle and then return to its original position.

DE 3640565 avalikustab lumehöövli puhastustera puhastusserva, mis sisaldab kummist või plastikust kinnituselementi, mille ühel küljel on kinnituslatt ja teisel küljel on puhastustera, kusjuures kinnituselemendil on piisav horisontaalne ja vertikaalne liikuvus, nii et tee ebatasasused ei põhjusta tera hüppamist või purunemist. DE 3640565 discloses a cleaning edge of a snowplow cleaning blade comprising a rubber or plastic mounting element having a mounting bar on one side and a cleaning blade on the other side, the mounting element having sufficient horizontal and vertical mobility so that unevenness in the road does not cause the blade to jump or break.

DE 2552058 avalikustab lumesaha konstruktsiooni, milles lumesaha hõlma külge on tera ühendatud elastse vaheosaga, mis võimaldab teral takistuse olemasolul pöörduda ja seejärel oma endisesse asendisse tagasi pöörduda. DE 2552058 discloses a snowplow construction in which a blade is connected to the snowplow blade by a flexible intermediate part, which allows the blade to turn in the presence of an obstacle and then return to its original position.

DE 4204109 avalikustab veoki või traktori külge kinnitatava lumehöövli. Höövli alumisse serva on ühendatud tugiraam, mille alumisse külge on ühendatud elastne vedrusuunaja, mille teise otsa on kinnitatud teepinnaga kontaktis olev metallriba, kusjuures metallriba on höövli alumisse ossa ühendatud veel teise elastsest materjalist ribaga. Taoline konstruktsioon võimaldab teral takistuse olemasolul pöörduda ja seejärel oma endisesse asendisse tagasi pöörduda. DE 4204109 discloses a snow plough to be attached to a truck or tractor. A support frame is connected to the lower edge of the plough, to the lower side of which an elastic spring guide is connected, to the other end of which a metal strip in contact with the road surface is attached, the metal strip being connected to another elastic material strip in the lower part of the plough. Such a construction allows the blade to turn when there is an obstacle and then return to its original position.

Tuntud konstruktsioonide puuduseks on see, et teepinnal oleva takistuse tõttu teehöövli tera pöördub ja selle tulemusena muutub tera ja teepinna vaheline nurk, millega takistusest üleliikumise ajaks väheneb tera ettenähtud puhastusefektiivsus. A disadvantage of known designs is that the grader blade rotates due to an obstacle on the road surface, and as a result, the angle between the blade and the road surface changes, which reduces the intended cleaning efficiency of the blade while it is moving over the obstacle.

Seni tuntud lahendustega terahoidjate üles-alla liikumisel tera kaldenurk muutub oluliselt, kuna puudub parallelogrammile iseloomulik käitumine ning see põhjustab teedehooldusmasina saha hüplemist tee ebatasasuste ületamisel. With previously known solutions, when the blade holders move up and down, the blade inclination angle changes significantly, as the behavior characteristic of a parallelogram is missing, and this causes the road maintenance machine's plow to jump when overcoming unevenness in the road.

Leiutise olemus The essence of the invention

Käesoleva leiutise eesmärgiks on pakkuda elastselt deformeeruvast, sealhulgas elastomeersest, materjalist teedehooldusmasina saha, näiteks lumesaha terahoidja konstruktsioon, kusjuures selle elastse terahoidjaga varustatud teraga on võimaldatud järgida töödeldava pinna ebatasasusi. Leiutise terahoidja sisaldab elastselt deformeeruvast materjalist osa, milles on üks või mitu õhuga täidetud tühimikku, mille tõttu töötab terahoidja sarnaselt parallelogrammile ( arniirnelilülik). Tühimikuga külgnevad terahoidja osad moodustavad küljelt vaadates parallelogrammi lülid, kus on ülemine liikuv lüli, alumine liikuv lüli, eesmine liikuv lüli ja tagumine liikumatu lüli. Lisaks sellele deformeerub terahoidja elastselt tänu ühele või mitmele tühimikule lihtsamini, võrreldes analoogsete tühimikuta konstruktsioonidega. Deformeeruvast materjalist osal on tera poolsel küljel deformeeruvast materjalist osast osaliselt väljaulatuv kinnitusplaat, samuti on deformeeruvast materjalist osa ülaservas tihendusriba. Deformeeruvast materjalist osal on üks või mitu väljalõiget. Alternatiivselt võib deformeeruvast materjalist osa sisse olla valatud üks või mitu ankrut, tühimikul võib olla kõrgendus, deformeeruvast materjalist osa deformeerumise kontrollimiseks võib sellel olla padi ja kaitse. The aim of the present invention is to provide a construction of a blade holder for a road maintenance machine, such as a snowplow, made of elastically deformable, including elastomeric, material, whereby the blade equipped with this elastic blade holder is enabled to follow the unevenness of the surface to be processed. The blade holder of the invention comprises a part made of elastically deformable material, in which there is one or more air-filled voids, due to which the blade holder works similarly to a parallelogram (Arnister four-link). The parts of the blade holder adjacent to the void form, when viewed from the side, the links of a parallelogram, where there is an upper moving link, a lower moving link, a front moving link and a rear stationary link. In addition, the blade holder deforms elastically due to one or more voids more easily, compared to analogous structures without voids. The part made of deformable material has a fixing plate partially protruding from the part made of deformable material on the blade side, and the part made of deformable material also has a sealing strip on the upper edge. The deformable material part has one or more cutouts. Alternatively, the deformable material part may have one or more anchors molded into it, the void may have a raised portion, the deformable material part may have a cushion and a guard to control deformation.

Käesoleva leiutise kohane terahoidja koosneb lühikestest kõrvuti paigutatud moodulitest. Üksteise kõrvale paigutatuna võimaldavad need moodulid kasutada erineva laiusega teri vastavalt vajadusel, kusjuures kõrvutiasetsevate moodulite ülemiste osade vahele tekivad vahekohad, sest igal moodulil on ülemises osas aste. Erinevate teralaiuste kasutamisega on võimalik varieerida terahoidjate jäikust ja võimet teepinda kopeerida. Samas on võimalik ühe mooduli külge kinnitada ka vaid üks lühike tera. See muudab terahoidja mooduli universaalseks kõikide erineva laiustega lumesahkade jaoks. The blade holder according to the present invention consists of short modules arranged side by side. When arranged side by side, these modules allow the use of blades of different widths as required, whereby gaps are created between the upper parts of the adjacent modules, since each module has a step in the upper part. By using different blade widths, it is possible to vary the stiffness of the blade holders and their ability to copy the road surface. However, it is also possible to attach only one short blade to one module. This makes the blade holder module universal for all snowplows of different widths.

Jooniste loetelu List of drawings

Leiutise eelistatud teostust kirjeldatakse kaasasolevatele joonistele viidates, kus: A preferred embodiment of the invention is described with reference to the accompanying drawings, in which:

joonis fig 1 illustreerib leiutisekohase terahoidja ristlõike sarnasust parallelogrammile; Figure 1 illustrates the cross-sectional similarity of a blade holder according to the invention to a parallelogram;

joonisel fig 2 on leiutisekohase elastselt deformeeruvast materjalist terahoidja ühe eelistatud teostuse ristlõige; Figure 2 is a cross-section of a preferred embodiment of a blade holder made of elastically deformable material according to the invention;

joonistel fig 3A, 3B ja 3C on leiutisekohase elastselt deformeeruvast materjalist terahoidja kuju muutus vastavalt teepinna ebatasasustele; Figures 3A, 3B and 3C show the change in shape of a blade holder made of elastically deformable material according to the invention according to unevenness of the road surface;

joonisel fig 4 on leiutisekohase elastselt deformeeruvast materjalist terahoidja terakinnitusplaadi pealtvaade; Figure 4 is a top view of a blade mounting plate of a blade holder made of elastically deformable material according to the invention;

joonisel fig 5 on leiutisekohase elastselt deformeeruvast materjalist terahoidja eestvaade; Figure 5 is a front view of a blade holder made of elastically deformable material according to the invention;

joonisel fig 6 on leiutisekohase elastselt deformeeruvast materjalist terahoidja pealtvaade; Figure 6 is a top view of a blade holder made of elastically deformable material according to the invention;

joonisel fig 7 on leiutisekohase elastselt deformeeruvast materjalist terahoidja külgvaade; Figure 7 is a side view of a blade holder made of elastically deformable material according to the invention;

joonisel fig 8 on joonise fig 6 lõige A-A; Figure 8 is a section A-A of Figure 6;

joonisel fig 9 on leiutisekohase elastselt deformeeruvast materjalist terahoidja eelistatud teostuse ristlõige; Figure 9 is a cross-section of a preferred embodiment of a blade holder made of elastically deformable material according to the invention;

joonisel fig 10 on leiutisekohase elastselt deformeeruvast materjalist terahoidja aksonomeetriline vaade osalise ristlõikega; Figure 10 is an axonometric view with partial cross-section of a blade holder made of elastically deformable material according to the invention;

joonisel fig 11 on leiutisekohase elastselt deformeeruvast materjalist terahoidja ühe alternatiivse teostuse külgvaade; Figure 11 is a side view of an alternative embodiment of a blade holder made of elastically deformable material according to the invention;

joonisel fig 12 on leiutisekohase elastselt deformeeruvast materjalist terahoidja ühe teise alternatiivse teostuse külgvaade. Figure 12 is a side view of another alternative embodiment of a blade holder made of elastically deformable material according to the invention.

Leiutise teostamise näide Example of carrying out the invention

Leiutisekohase teedehooldusmasina saha terahoidja teostamise näidet on kirjeldatud lumesaha terahoidja jaoks, kuid leiutise konstruktsioon ei piirdu ainult lumesahaga, vaid võib olla kasutatud muud tüüpi teedehooldusmasina saha terahoidja valmistamiseks. An example of the implementation of a plow blade holder for a road maintenance machine according to the invention has been described for a snow plow blade holder, but the design of the invention is not limited to a snow plow, but can be used to manufacture a plow blade holder for other types of road maintenance machines.

Joonisel fig 1 on näidatud uue põhimõttega elastselt deformeeruvast materjalist terahoidja 1, mis koosneb elastselt deformeeruvast materjalist osast 2 ja sellesse paigutatud tera kinnitusplaadist 3. Elastselt deformeeruvast materjalist osa 2 töötab parallelogrammi põhimõttel. Erinevus olemasolevatest elastselt deformeeruvate detailidega terahoidjatest seisneb selles, et terahoidjas on üks või mitu tühimikku 4, mille tõttu töötab terahoidja samaselt parallelogrammile ( arniirnelilülik). Lisaks sellele deformeerub terahoidja elastselt tänu ühele või mitmele tühimikule lihtsamini, võrreldes analoogsete tühimikuta konstruktsioonidega. Terahoidjal moodustuvad neli lüli: ülemine liikuv lüli 5, alumine liikuv lüli 6, eesmine liikuv lüli 7 ja tagumine liikumatu lüli 8. Lülid on ühendatud omavahel tinglikult arniiridega 9. Uue kujuga terahoidja tulemusena on tagatud elastselt deformeeruvate osade hea kinemaatika, piisav jäikus ning samal ajal pikaealisus. Figure 1 shows a blade holder 1 made of elastically deformable material with a new principle, which consists of a part 2 made of elastically deformable material and a blade mounting plate 3 placed therein. The part 2 made of elastically deformable material works on the principle of a parallelogram. The difference from existing blade holders with elastically deformable parts lies in the fact that the blade holder has one or more gaps 4, due to which the blade holder works in the same way as a parallelogram (Arnian four-link). In addition, the blade holder deforms elastically more easily due to one or more gaps, compared to analogous structures without gaps. The blade holder is formed by four links: the upper moving link 5, the lower moving link 6, the front moving link 7 and the rear stationary link 8. The links are conditionally connected to each other by means of links 9. As a result of the new shape of the blade holder, good kinematics of the elastically deformable parts, sufficient rigidity and at the same time longevity are ensured.

Vastavalt joonisele fig 2 on leiutisekohase terahoidja 1 elastselt deformeeruvast materjalist osa 2 kinnitatud saha hõlma 10 alumises servas oleva kanduri 11 külge osa 2 sisse valatud ühendusplaadist 12 väljaulatuvate kinnituspoltidega 13. Tera kinnitusplaadi 3 külge on kinnitatud teedehooldusmasina saha, näiteks eelistatud teostuses lumesaha tera 14. Elastselt deformeeruvast materjalist osa 2 ülaservast ulatub välja tihendusriba 15, mis takistab lume või pinnase sattumist terahoidja tühimikesse. According to Figure 2, the part 2 of the blade holder 1 of the invention made of elastically deformable material is attached to the carrier 11 on the lower edge of the blade cover 10 with fastening bolts 13 protruding from the connecting plate 12 cast into the part 2. A blade of a road maintenance machine, for example, in the preferred embodiment, a snowplough blade 14, is attached to the blade fastening plate 3. A sealing strip 15 protrudes from the upper edge of the part 2 made of elastically deformable material, which prevents snow or soil from entering the gaps of the blade holder.

Joonistel fig 3A-3C on kujutatud tööasendis saha terahoidja ja saha tera asendit sileda aluspinnase puhul (joonis fig 3A), sujuvalt tõusvate servadega takistuse puhul (joonis fig 3B) ja astmeliste takistuste korral (joonis fig 3C). Astmeliste takistuste korral, mis ei võimalda tera vaba ülesliikumist, nõtkub elastselt deformeeruvast materjalist osa 2 alumine lüli 6 (joonis fig 1) parallelogrammi põhimõttel läbi ja saha tera 14 saab tahapoole kalduda koos samaaegse ülespoolse liikumisega, võimaldades takistuste ületamise. Seega saab saha tera 14 elastselt deformeeruvast materjalist osa 2 ühe või mitme tühiku kuju tõttu saha hõlma 10 suhtes üles-alla liikuda, jäädes ise maapinnaga ligikaudu sama nurga alla. Antud terahoidja võimaldab tera ülesliikumist senistest tuntud lahendustest enam, võimaldades seetõttu teepinda kumerate takistuste ületamisel paremini kopeerida. Figures 3A-3C show the position of the plough blade holder and the plough blade in the working position for a smooth base (Figure 3A), for an obstacle with smoothly rising edges (Figure 3B) and for stepped obstacles (Figure 3C). In the case of stepped obstacles that do not allow the blade to move freely upwards, the lower link 6 of the elastically deformable material part 2 (Figure 1) bends according to the principle of a parallelogram and the plough blade 14 can tilt backwards with a simultaneous upward movement, allowing the obstacles to be overcome. Thus, the plough blade 14 can move up and down relative to the plough body 10 due to the shape of one or more gaps in the elastically deformable material part 2, while remaining at approximately the same angle with the ground. This blade holder allows the blade to move upwards more than previously known solutions, therefore allowing the road surface to be better copied when overcoming curved obstacles.

Leiutisekohane terahoidja 1 võib olla kogu saha hõlma laiuses ühes tükis või võib koosneda lühikestest moodulitest. Üksteise kõrvale paigutatuna võimaldavad need moodulid kasutada erineva laiusega teri vastavalt vajadusele. Erinevate teralaiuste kasutamisega on võimalik varieerida terahoidjate jäikust ja võimet teepinda kopeerida. The blade holder 1 according to the invention can be in one piece across the entire width of the ploughshare or can consist of short modules. When placed next to each other, these modules allow the use of blades of different widths as needed. By using different blade widths, it is possible to vary the stiffness of the blade holders and their ability to follow the road surface.

Samas on võimalik ühe mooduli külge kinnitada ka vaid üks lühike tera. See muudab terahoidja mooduli universaalseks kõikide erineva laiustega lumesahkade jaoks. However, it is also possible to attach just one short blade to one module. This makes the blade holder module universal for all snowplows of different widths.

Tera kinnitusplaadis 3 olevad terade kinnitusavade 16 (joonis fig 4) asendid on valitud selliselt, et võimaldada kinnitada kõiki standardmõõdus ja mitmeid erinevaid mittestandardseid sahaterasid. Kinnitusplaadil 3 on avad 17 elastselt deformeeruvast materjalist (näiteks elastomeer) osa 2 ja kinnitusplaadi 3 omavahelise parema sidususe saavutamiseks. Lisaks on kinnitusplaadil 3 kinnitusankrud 18 elastomeeri ja kinnitusplaadi 3 omavahelise parema sidususe saavutamiseks. Kinnitusplaat 3 ja ühendusplaat 12 on kaetud pinnakattega, millega on saavutatud parem kontakt elastselt deformeeruvast materjalist osaga 2. The positions of the blade mounting holes 16 (Fig. 4) in the blade mounting plate 3 are selected in such a way as to enable the mounting of all standard-sized and several different non-standard saw blades. The mounting plate 3 has holes 17 to achieve better cohesion between the elastically deformable material (e.g. elastomer) part 2 and the mounting plate 3. In addition, the mounting plate 3 has fastening anchors 18 to achieve better cohesion between the elastomer and the mounting plate 3. The mounting plate 3 and the connecting plate 12 are covered with a surface coating, which achieves better contact with the elastically deformable material part 2.

Terahoidja detailne tehniline lahendus on näidatud joonisel fig 9. Sobivate ümardusraadiustega väljalõiked 19 ja 20 aitavad kaasa elastselt deformeeruvast materjalist (elastomeerist) osa 2 parallelogrammile iseloomuliku arniirse liikumise võimaldamisele. Sobiva ümardusraadiusega väljalõige 21 võimaldab tihendusribal 15 kohanduda saha hõlma järgi terahoidja erinevate tööasendite korral. Tera kinnitusplaat 3 võib olla painutatud (vaata joonised fig 9 kuni fig 12), et vältida selle väljamurdumist elastomeerist. Parema nakkumise saavutamiseks võib terahoidja olla kinnitusplaadiga 3 külgnevalt varustatud ühe või mitme ankruga 22. Lume või pinnase eemaldumise võimaldamiseks on terahoidjal 1 kanduri 11 poolse osa ühes küljes aste 23 (joonis fig 8). The detailed technical solution of the blade holder is shown in Figure 9. The cutouts 19 and 20 with suitable radiuses of curvature contribute to the smooth movement characteristic of the parallelogram of the part 2 made of elastically deformable material (elastomer). The cutout 21 with a suitable radius of curvature allows the sealing strip 15 to adapt to the ploughshare in different working positions of the blade holder. The blade mounting plate 3 may be bent (see Figures 9 to 12) to prevent it from breaking out of the elastomer. To achieve better adhesion, the blade holder may be equipped with one or more anchors 22 adjacent to the mounting plate 3. To enable the removal of snow or soil, the blade holder 1 has a step 23 on one side of the carrier 11 side part (Figure 8).

Terahoidjal võivad olla erinevad modifikatsioonid. Joonisel fig 11 on näidatud terahoidja üks võimalik alternatiivne teostus, kus elastselt deformeeruvast materjalist (elastomeerist) osal 2 on sobiva ümardusraadiusega väljalõige 24, millega on tagatud alumise lüli suurem läbinõtkumine astmelisest takistusest üle sõitmisel. Joonisel fig 12 on kujutatud terahoidjat 2, millel on allosas padi 25, mis on ette nähtud terahoidja käigu piiramiseks takistusele otsasõidu korral, terakinnituspoldi 26 (vaata joonis fig 2) kaitse 27 elastselt deformeeruvast materjalist (elastomeerist) osa 2 läbinõtkumisel. Ühes teises alternatiivses teostuses on elastselt deformeeruvast materjalist (elastomeerist) osal 2 kõrgendus 28, mis piirab alumise lüli 6 läbinõtkumist. The blade holder may have various modifications. Figure 11 shows one possible alternative embodiment of the blade holder, where the part 2 made of elastically deformable material (elastomer) has a cutout 24 with a suitable radius of curvature, which ensures greater deflection of the lower link when driving over a stepped obstacle. Figure 12 shows the blade holder 2, which has a cushion 25 at the bottom, which is intended to limit the travel of the blade holder in the event of a collision with an obstacle, and a protection 27 of the blade fastening bolt 26 (see Figure 2) against deflection of the part 2 made of elastically deformable material (elastomer). In another alternative embodiment, the part 2 made of elastically deformable material (elastomer) has a rise 28, which limits the deflection of the lower link 6.

Claims

1. A road maintenance machine plow blade holder (1) for attaching a plow blade (14) to a plow blade (10), the blade holder (1) comprising a connecting plate (12) for attaching the blade holder to the plow blade (10), a mounting plate (3) for attaching the plow blade (14) to the blade holder and a part (2) of elastically deformable material having a void (4), characterized in that the part (2) of elastically deformable material has one or more air-filled voids (4), the part (2) of elastically deformable material with one or more voids (4) has a substantially rectangular profile so that it is adapted to operate as a parallelogram having an upper movable link (5), a lower movable link (6), a front movable link (7) and a rear fixed link (8), and the blade holder mounting plate (3) partially protrudes from the inside of the part (2) of elastically deformable material.

2. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the mounting plate (3) is rectangular.

3. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the upper part of the mounting plate (3) is bent.

4. A plow blade holder for a road maintenance machine according to claim 1, characterized in that a sealing strip (15) extends from the upper edge of the part (2) made of elastically deformable material.

5. A blade holder for a road maintenance machine according to claim 1, characterized in that the blade holder (1) consists of adjacent modules.

6. A road maintenance machine plow blade holder according to claim 1, characterized in that the mounting plate (3) has openings (17) for achieving better cohesion between the elastically deformable material part (2) and the mounting plate (3), and the mounting plate (3) has mounting anchors (18).

7. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the part (2) made of elastically deformable material has a cutout (19) between the lower movable link (6) and the rear stationary link (8).

8. A plow blade holder for a road maintenance machine according to claims 1 and 4, characterized in that the part (2) made of elastically deformable material has a cutout (20) between the upper movable link (5) and the sealing strip (15).

9. A plow blade holder for a road maintenance machine according to claim 4, characterized in that the sealing strip (15) has a cutout (21).

10. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the lower movable link (6) has a cutout (24) on the underside.

11. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the part (2) made of elastically deformable material has one or more anchors (22) adjacent to the mounting plate (3).

12. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the lower movable link (6) has a raised portion (28) on the upper side.

13. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the elastically deformable material part (2) has a pad (25) adjacent to the lower end of the connecting plate (12).

14. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the lower part of the mounting plate (3) has a protection (27) for the blade mounting bolt (26).

15. A plow blade holder for a road maintenance machine according to claim 1, characterized in that the mounting plate (3) and the connecting plate (12) are coated.

16. A road maintenance machine plow blade holder according to claim 1, characterized in that the part (2) made of elastically deformable material has a step (23) on one side of the part on the carrier (11) side at the lower edge of the plow blade (10).