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EP0580978A1 - Chasse-neige - Google Patents

Chasse-neige Download PDF

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Publication number
EP0580978A1
EP0580978A1 EP93108226A EP93108226A EP0580978A1 EP 0580978 A1 EP0580978 A1 EP 0580978A1 EP 93108226 A EP93108226 A EP 93108226A EP 93108226 A EP93108226 A EP 93108226A EP 0580978 A1 EP0580978 A1 EP 0580978A1
Authority
EP
European Patent Office
Prior art keywords
ploughshare
snow plow
plow according
link guide
segment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP93108226A
Other languages
German (de)
English (en)
Inventor
Markus Anderl
Wilhelm Beilhack
Alfons Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Martin Beilhack Maschinenfabrik und Hammerwerk GmbH
Martin Beilhack Maschinenbau GmbH
Original Assignee
Martin Beilhack Maschinenfabrik und Hammerwerk GmbH
Martin Beilhack Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Martin Beilhack Maschinenfabrik und Hammerwerk GmbH, Martin Beilhack Maschinenbau GmbH filed Critical Martin Beilhack Maschinenfabrik und Hammerwerk GmbH
Publication of EP0580978A1 publication Critical patent/EP0580978A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
    • E01H5/00—Removing snow or ice from roads or like surfaces; Grading or roughening snow or ice
    • E01H5/04—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material
    • E01H5/06—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades
    • E01H5/063—Apparatus propelled by animal or engine power; Apparatus propelled by hand with driven dislodging or conveying levelling elements, conveying pneumatically for the dislodged material dislodging essentially by non-driven elements, e.g. scraper blades, snow-plough blades, scoop blades by snow-plough blades tiltable for shock-absorbing purposes

Definitions

  • the invention relates to a snow plow according to the preamble of claim 1.
  • a snow plow which has become known from DE-A 10 97 463 comprises a ploughshare which is held in its clearing position by means of lower knee joint levers attached to the side of the ploughshare and which can be pivoted against the force of a spring accumulator in a raised alternative position.
  • the ploughshare is held by two support guides which run essentially vertically laterally in the starting position and are held and anchored on the plow frame carrier side, that is to say on the vehicle side.
  • connection between the two-armed swivel levers and the ploughshare is realized via ball joints in order to ensure better mobility of the ploughshare compared to a simple bolt bearing when overcoming unilateral road obstacles.
  • a generic snow plow has become known from AT 392 993 B.
  • This snow plow comprises a support frame for a one- or multi-part plow share, the plow share using rollers movable in at least two guides and at least one on the support frame and on the Ploughshare pivotally mounted handlebar is adjustable against the action of a return device from the working position to a high position and the handlebar in the working position of the ploughshare is aligned approximately in the working direction.
  • the guides include an acute angle of approximately 30 ° to 70 ° with the working direction of the ploughshare.
  • the object of the present invention is therefore to create a snow plow based on the last-mentioned prior art, the clearing behavior and in addition also the evasive behavior thereof being improved even when approaching a ground obstacle or even a side obstacle on one side.
  • the improvement is said to be in a further development of the invention even with a different setting of the rake angle, i. H. the angle of the scraper bar to the road surface can be easily achieved.
  • the snow plow share according to the invention is characterized in that even when several are used side by side arranged ploughshare segments, the individual ploughshare segments can not only be raised and lowered relative to each other independently between their clearing and evasive position, but also to a certain extent a one-sided evasive movement including the possibility of a slight twisting movement (around an imaginary one) when approaching one side or ground obstacles to be able to carry out essentially horizontally in the direction of travel).
  • an alignment device is integrated, by means of which the respective plow share segment is held in a predefined exact alignment position above the vehicle-side support frame.
  • the individual ploughshare segment is preferably held on the supporting frame in the manner of a trapezoidal or three-point suspension.
  • Particularly preferred is an embodiment with a more or less rigid pair of parallel link arrangement at the bottom and a central guide link at the top, in which a sliding block engages.
  • the link guide and the sliding block slidably guided therein are alternately at least indirectly connected to the support frame or the associated ploughshare segment.
  • the pivot bearings of the handlebars are designed at least in a minimum range as spatially pivotable pivot bearings, ie preferably as spatially movable rubber bushings. It is also possible to design the handlebar from elastomeric material, possibly with an integrated reinforcement or reinforcement. This can preferably consist of one Perforated grids exist to achieve the best possible connection between the integrated reinforcement and the elastomeric material.
  • the link guide preferably has a linear travel path for the sliding block or slide.
  • the sliding block engaging in it is provided with opposing plane-parallel surfaces.
  • the slide guide and the sliding block slidably mounted in it can be adjusted laterally to one another by a preselectable amount, in order to also allow the individual ploughshare segment to be adjusted laterally to a pre-selectable extent in the event of uneven ground.
  • the individual ploughshare segment can also be kept biased into its centered central position in the adjustment range between the clearing position and the maximum avoidance position by means of a spring device.
  • the link guide and thus the clearing angle on the clearing bar can be changed in a presettable manner, in order to be able to achieve and set the desired optimal clearing conditions, in particular at different driving speeds, even while driving.
  • Ploughshare or a ploughshare segment 1 with a lower clearing bar 3 is shown, each of which is held pivotably by an adjacent ploughshare segment independently of a generally height-adjustable support frame 5 between the clearing position shown in FIG. 1 and the upper alternative position shown in FIG. 2.
  • two thrust links 7 are provided for each ploughshare segment 1, each lying adjacent to the side section of a ploughshare segment, which are supported at their opposite ends in a pivot bearing 9 'or 9' '.
  • the leading pivot bearing 9 ' is formed, for example, on a vertically extending reinforcing rib 11 on the rear and the trailing pivot bearing 9' 'is formed on a corresponding section of the support frame 5.
  • the pivot bearings not only allow pivoting about their horizontal bearing axis, but also in an at least limited area in a direction deviating from this. This can be done, for example, by using ball-and-socket joints or, as in the present exemplary embodiment, in the form of spatially movable rubber bushings, which, on the other hand, are less expensive. (A handlebar made of elastomeric material with a built-in reinforcement is also possible, as will be explained below with reference to FIGS. 9a and 9b).
  • the individual ploughshare segments 1 also carry out a spatial adjustment movement, that is to say also perform an adjustment movement at least in a certain area and even an axis essentially transverse to a horizontal axis in the direction of travel or in the transverse direction of the ploughshare. This results in an at least slight spatial pivoting movement, including a lateral offset and / or twisting movement about the above-mentioned essentially leading horizontal axis, especially when approaching a side or side ground obstacle.
  • Each ploughshare segment 1 is supported in addition to the two rigid thrust links 7 via a further adjustment device located above the links 7 with respect to the support frame 5, which is arranged above the horizontal equatorial plane in relation to the arcuate curvature of the plow share segments 1 when viewed from the side.
  • an elongated slot-like link guide 13 is provided which is fixedly connected to the supporting frame 5 and which has a straight slot opening or guide track 15 which extends in the lateral direction of the ploughshare.
  • the link guide 13 is supported and held on the support frame 5, in the present case by means of a fixed support 17, for. B. in the form of a support plate 17th
  • a slider 19 with opposing plane-parallel surfaces engages in the link guide 13 and can be displaced in the longitudinal direction of the link guide 13.
  • FIG. 3 shows a rear sectional illustration along the line III-III in FIG. 1. From this it can also be seen that the slider 19 extends beyond the link guide 13 in the transverse direction and through lateral holding plates 21 is held by means of a screw connection 23.
  • the holding plates 21 are welded to the back of the ploughshare segment 1 concerned or to the reinforcing ribs 11 running thereon at a transverse distance from top to bottom.
  • a stop 25 which is angular or roof-shaped to the horizontal and which is fixedly connected to the support frame 5 or to the support 17 in FIGS.
  • a buffer preferably a rubber buffer 27, is firmly screwed onto the side of the angular stop 25 facing the guide 13. From the illustration according to FIG. 2 it can be seen that the ploughshare-side retaining plates 21 provided adjacent to the angled or roof-shaped stop 25 are complementary to the stop 25 and rest on the rubber buffer 27 in the lower clearing position shown in FIG.
  • This alignment and centering device 24 ensures automatic self-alignment and centering of the respective ploughshare segment 1 with respect to the associated supporting section of the supporting frame 5, so that two laterally adjacent ploughshare segments do not collide with one another in the clearing position.
  • the centering device explained in particular with reference to FIG. 3 acts especially in the starting and clearing position when the ploughshare segment 1 is not pivoted in the avoiding direction. As soon as the ploughshare segment 1 lifts off its starting centering position shown in FIG Centering device on.
  • the centering device illustrated in FIG. 3 is designed in the manner of a complementary roof construction, by means of which the ones attached to the rear of the ploughshare segments 1 and to the left when viewed from the back of the link guide and the right-hand sloping retaining plates 21, which are aligned symmetrically to the link guide, interact with the correspondingly inclined stop surfaces 25 via the rubber buffers 27 located between them.
  • the respective ploughshare segment 2 When approaching a ground obstacle, the respective ploughshare segment 2 is then raised from the clearing position shown in FIG. 1 to the maximum avoidance position shown in FIG. 2, the lower pair of thrust links 7 pivoting upward about their pivoting bearing on the support frame side and in the link guide 13 Slider 19 is moved to its upper end position.
  • the slider 19 is rotatably held on its pivot axis 19 ′ formed by the horizontal screw connection 23 relative to the support plates 21 on the ploughshare side.
  • a stop limit for the maximum avoidance position can also be provided at a suitable point.
  • a spring force accumulator 33 suspended between the ploughshare segment 1 and the support frame 5 between points 29 and 31 is subjected to tension, via which the restoring movement is then also initiated.
  • the corresponding clearing angle ⁇ between the plane of the clearing plate and the vertical can be 31, for example often up to 10 be adjusted.
  • the heights that can be driven over can easily reach 18 cm and more.
  • link guide 15 can also be firmly connected to the respective ploughshare segment 1 and the sliding block 19 which can be displaced therein can be rotatably supported and supported on a holding section which is firmly connected to the supporting frame 5.
  • the upper one allows Link guide not only a lateral evasive movement of the ploughshare segment 1 in question in the substantially horizontal transverse direction of the link guide 15, but also, with regard to the aforementioned pivot bearings 9 'and 9''which permit a spatial pivoting movement, also an at least slight rotational movement of the plow share segment 1 concerned by an essentially horizontal and imaginary axis of rotation running in the direction of travel.
  • FIG. 4 in which a slightly modified exemplary embodiment is shown.
  • the return spring 11 is in the region of the holding plates 21 of the slide 19 and on the other anchored at a low hanging point on the support frame 5.
  • a force limiter pawl 37 which is biased by a spring 35, is also provided, the end face 38 of which acts through the spring 35 in the clearing position on a lateral recess section 39 of the link guide 13, and there on a shoulder designed in an evasive position in the manner of an inclined plane 41 is present.
  • the triggering forces When approaching a ground obstacle, the triggering forces must also be exceeded first by the inclined surface of the shoulder 41 (which corresponds to a corresponding chamfer in the end region of the force limiter pawl 37) and the spring 35, so that the ploughshare segment in question can avoid an obstacle when approaching .
  • the force limiting pawl 37 When a certain clearing force is exceeded, the force limiting pawl 37 is then pressed out of the recessed portion 39 and over the shoulder 41 in its guide 43 welded onto the rear of the ploughshare segment 1, so that the slide in the link guide can be moved further and the ploughshare segment can evade.
  • the force limiting pawl 37 engages again on the shoulder 41 in the recessed section 39.
  • a so-called gas spring by means of which the ploughshare segment in question is kept in the clearing position until a certain triggering force is exceeded. Due to the preload pressure, a gas spring has a preload force that must be exceeded in order to be able to cause a change in length. The gas spring also provides the necessary restoring action after the ploughshare segment 1 has dodged.
  • the particularly flat force-stroke characteristic curve according to FIG. 6 is particularly evident in this context. From this it can be seen that, based on the evasion height, an almost zero clearing force-evasion height characteristic curve is possible, with the result that only relatively weakly dimensioned helical tension springs 11 are necessary for the return movement.
  • the side view of a ploughshare segment 1 corresponds in principle to the embodiment according to FIG. 1.
  • the support 17 is held in a vertical plane about a pivot axis 53 located on the support frame 5, the support and the link guide connected to it in a rotationally fixed manner 15 can pivot via an adjusting cylinder 51, for example, from the position shown in FIG. 1 to the position shown in FIG.
  • the adjusting cylinder 51 is supported on a horizontal axis of rotation 55 on the support frame 5 and on an additional axis of rotation 57 connected at least indirectly to the link guide 13.
  • the clearing and scraping angle ⁇ from the plane in the clearing bar to the vertical is approximately 31 is, by adjusting the adjusting cylinder 51, for example, an angle ⁇ of 13.5 set. Other clearing angles can also be set.
  • the change in the setting angle ⁇ can also occur while driving be carried out from the driver's cab of the vehicle.
  • the actuator 51 can take the form of a lockable hydraulic cylinder, a hydraulic motor, pneumatic cylinder or, for example, an electric or electric geared motor or in some other way.
  • the alignment and centering device 24 explained with reference to FIG. 3, which in this embodiment is connected to the link 13, is always functional with different presetting of the rake angle ⁇ .
  • the angular positions of the stop surfaces change relative to each other.
  • spherical rubber stop buffers 27 are used. If the backdrop is exactly between the two end positions, the stop surfaces are at the same angle. In this way, the angle difference between the stop surfaces is halved. This angular difference is well balanced and coped with by spherical buffers 27.
  • the explained aligning and centering device 24 is effective in the end pivoting area in the direction of the clearing position. It is not effective in the intermediate adjustment and avoidance range.
  • the spring plates 21 and the thickness of the link guide 13 could be pre-centered in the position shown in FIG. 3 by a spring preload due to the laterally possible offset of a snow plow segment that is fixed relative to the support frame, so that between the final clearing position and the maximum avoidance position there is an effective preload in the central centering position corresponding to the selected spring preload.
  • FIG. 9 shows a push link 7 'intended for particularly hard clearing operations.
  • This push rod 7 ' is made of an elastomeric material such as Vulkollan. So that this handlebar can absorb longitudinal forces, a perforated plate 69 made of steel is cast in with it. Steel or plastic pipes are cast into the bearing eyes for storage. Since the connection of the perforated plate 69 and the tubes for the bearing eyes 71 consists only of Vulkollan, this handlebar has special spatial alternatives. The holes in the perforated plate and the resulting plastic bridges also enable the elastomeric material to be optimally welded to this internal reinforcement 69.
  • the push rod As can be seen from the side view of the push rod according to FIG. 9b, it is aligned at its present joint or support point with a support frame side lying buffer 75 provided. If a ploughshare segment was swiveled into the evasive position according to FIG. 2, then the buffer 75 (not shown there in FIG. 2) would strike directly with its protruding nose on the supporting frame or on the likewise fixed support 17 fixedly attached to the supporting frame 5. This results in additional restoring forces Initiation and return of the ploughshare segment in the evasive position effected in clearing position.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
EP93108226A 1992-07-22 1993-05-20 Chasse-neige Withdrawn EP0580978A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4224220 1992-07-22
DE19924224220 DE4224220C2 (de) 1992-07-22 1992-07-22 Schneepflug

Publications (1)

Publication Number Publication Date
EP0580978A1 true EP0580978A1 (fr) 1994-02-02

Family

ID=6463858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93108226A Withdrawn EP0580978A1 (fr) 1992-07-22 1993-05-20 Chasse-neige

Country Status (2)

Country Link
EP (1) EP0580978A1 (fr)
DE (1) DE4224220C2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6941685B2 (en) 2002-10-29 2005-09-13 Douglas Dynamics, L.L.C. Snowplow assembly
CN109440711A (zh) * 2018-12-04 2019-03-08 威海广泰空港设备股份有限公司 辊刷支撑轮复位机构

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4235839A1 (de) * 1992-10-23 1994-05-05 Schmidt Winterdienst Lenkerverbindung
DE102016121205A1 (de) 2016-11-07 2018-05-09 Aebi Schmidt Deutschland Gmbh Schneeräumfahrzeug
CN110629723A (zh) * 2019-09-27 2019-12-31 江苏师范大学 一种道路除雪车辆用除雪铲

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097463B (de) * 1953-05-23 1961-01-19 Ries Adolf Fa Raeumvorrichtung eines Schneepfluges
AT329110B (de) * 1972-04-11 1976-04-26 Friedrich Ing Schallert Schneepflug
FR2320453A1 (fr) * 1975-08-05 1977-03-04 Peter Ag Konrad Dispositif de montage d'appareils, en particulier d'appareils de deneigement
AT392993B (de) * 1988-06-03 1991-07-25 Hauer Franz Schneepflug

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1278465B (de) * 1966-11-19 1968-09-26 Beilhack Maschf Martin Schneepflug mit ausweichender Schar
DE1259924B (de) * 1967-03-08 1968-02-01 Robert Seitz An der Rueckseite eines Anbaugeraetes fuer den Strassendienst, insbesondere eines Schneepfluges, angeordnete Geraeteplatte
DE2100824A1 (de) * 1971-01-09 1972-07-27 Gummi Kuper KG, 4630 Bochum Raumleiste für Schneepfluge oder dgl
DE2138671C3 (de) * 1971-08-03 1983-11-10 Martin Beilhack Maschinenfabrik Und Hammerwerk Gmbh, 8200 Rosenheim Kupplungsanordnung zwischen einer frontseitigen Gerätetragplatte eines Tragfahrzeuges und einer vertikalen Gerätebefestigungsplatte
DE3151726C2 (de) * 1981-12-29 1986-01-30 Martin Beilhack Maschinenfabrik Und Hammerwerk Gmbh, 8200 Rosenheim Schneepflug
DE3602758A1 (de) * 1986-01-30 1987-08-20 Daimler Benz Ag Schneepflug
DE4022683A1 (de) * 1990-07-17 1992-01-23 Schmidt Alfred Ing Gmbh Schneepflug

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097463B (de) * 1953-05-23 1961-01-19 Ries Adolf Fa Raeumvorrichtung eines Schneepfluges
AT329110B (de) * 1972-04-11 1976-04-26 Friedrich Ing Schallert Schneepflug
FR2320453A1 (fr) * 1975-08-05 1977-03-04 Peter Ag Konrad Dispositif de montage d'appareils, en particulier d'appareils de deneigement
AT392993B (de) * 1988-06-03 1991-07-25 Hauer Franz Schneepflug

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6941685B2 (en) 2002-10-29 2005-09-13 Douglas Dynamics, L.L.C. Snowplow assembly
CN109440711A (zh) * 2018-12-04 2019-03-08 威海广泰空港设备股份有限公司 辊刷支撑轮复位机构
CN109440711B (zh) * 2018-12-04 2024-01-30 威海广泰特种车辆有限公司 辊刷支撑轮复位机构

Also Published As

Publication number Publication date
DE4224220A1 (de) 1992-12-24
DE4224220C2 (de) 1996-09-05

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