EP0585624A1 - Lame de nivellement avec dispositifs stibilisateurs supplémentaires - Google Patents

Lame de nivellement avec dispositifs stibilisateurs supplémentaires Download PDF

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Publication number
EP0585624A1
EP0585624A1 EP93112324A EP93112324A EP0585624A1 EP 0585624 A1 EP0585624 A1 EP 0585624A1 EP 93112324 A EP93112324 A EP 93112324A EP 93112324 A EP93112324 A EP 93112324A EP 0585624 A1 EP0585624 A1 EP 0585624A1
Authority
EP
European Patent Office
Prior art keywords
construction vehicle
dozer blade
vehicle according
blade
support device
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Withdrawn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
EP93112324A
Other languages
German (de)
English (en)
Inventor
Luis Haringer
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.)
Macmoter SpA
Original Assignee
Macmoter SpA
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 Macmoter SpA filed Critical Macmoter SpA
Publication of EP0585624A1 publication Critical patent/EP0585624A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/08—Superstructures; Supports for superstructures
    • E02F9/085—Ground-engaging fitting for supporting the machines while working, e.g. outriggers, legs
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/815—Blades; Levelling or scarifying tools

Definitions

  • the invention relates to a construction vehicle with a dozer blade and preferably with at least one other working tool, wherein the dozer blade, which can also be used to support the vehicle on the ground, can be adjusted in height with the aid of a lifting device carrying it.
  • Such self-propelled construction vehicles with a dozer blade on the front of the vehicle and other work tools such as an excavator, a digging or loading shovel or the like are known, in particular at the rear end of the vehicle.
  • the work tools can be detachable or replaceable if necessary.
  • Such a vehicle can be used in a variety of ways with different functions and has a correspondingly wide range of use.
  • a comparatively manoeuvrable vehicle which is light in design and does not have an excessive width dimension.
  • the problems with respect to stability and stability increase when working with stationary tools with work tools that are operated with a comparatively great effort, the force being off-center or attacks at a side distance from the center of gravity.
  • it is known to improve the stability of wheeled vehicles with a dozer blade by lowering the dozer blade to the ground by means of the lifting device carrying it.
  • the stability is only insufficiently improved, particularly in the case of a light and compact construction of the vehicle with a comparatively small width dimension.
  • the invention has for its object to improve a construction vehicle of the type mentioned in such a way that, despite the light, compact and maneuverable construction, it offers improved stability in stationary operation, so that the performance range provided by additional work tools is fully available.
  • At least one additional support device is arranged on the dozer blade.
  • the stability is increased and the tendency of the construction vehicle to tip is reduced by the two support devices which are preferably provided on both ends of the dozer blades. Since the support devices can at the same time be designed and effective as pivotable blade extensions, the possible leveling capacity is increased despite the narrow construction. Finally, an individual height adjustment of the support devices or support plates, which can be adapted to the ground conditions, is possible in a simple manner using the lifting device of the dozer blade, the vertical division of the dozer blade provided as a further development into a left and a right half a different height adjustment of the support devices on the allows both ends of the dozer blade, as far as the lifting device of the Dozer blade has two separately controllable piston cylinder units.
  • a construction vehicle 1 which has a base frame 2 which is supported on the front axle 3 as well as on the rear axle via wheels 4 on the floor 5, which are twin wheels with pneumatic tires.
  • the construction vehicle 1 is designed essentially symmetrically to its longitudinal center plane 6.
  • a dozer 7 is provided on the front of the construction vehicle 1, which is articulated on the construction vehicle 1 by means of two levers 8 and can be swiveled up and down by means of two hydraulic lifting devices 9 and is held in the selected height setting.
  • the two levers 8 and the two lifting devices 9 are each arranged at the same distance on both sides of the longitudinal center plane 6, so that only the left lever 8 and the left lifting device 9 can be seen because of the partial drawing.
  • These are mounted on the vehicle side with a lower horizontal lever axis 10 or an upper horizontal lifting axis 11 in a vertically extending bearing fork 12 which is firmly connected to the base frame 2.
  • Each lifting device 9 has a lifting piston 14 which can be extended from the lifting cylinder 13 and which is articulated on a lever extension 15. This construction makes it possible to either raise the dozer blade 7 out of the working position shown in solid lines by evenly moving in or out the two lifting pistons 14 into a driving position or lowering it into a supporting position in a floor recess 16, as illustrated in FIG. 2.
  • the construction vehicle 1 has, in the usual way - but not shown - a drive motor, a hydraulic system which it also operates, steering and control devices, a driver's cabin with a driver's seat and, in particular, at least one additional work tool or at least one device for optional use on the rear of the vehicle Attach such a work tool.
  • this additional work tool can be an excavator shovel, a charger or the like, the actuation taking place in a known manner by means of the hydraulic system of the construction vehicle 1.
  • a support device 17 is connected to each lateral end of the dozer blade 7, which, as can be seen from FIG with a corresponding profile.
  • everyone Extension claw 18 is mounted on the dozer blade 7 via a lower lever arrangement 19 and an upper lever arrangement 20 with a vertical pivot axis 21 and can be pivoted from the rest position A shown in FIGS. 3 and 4 into the operating position B shown in FIG. 1, as is also the case is dashed in Figure 3 and indicated by the swivel arch.
  • the extension claw 18 In the rest position A, the extension claw 18 is located completely behind the dozer blade 7 between it and the wheel 4 without projecting laterally beyond the dozer blade 7.
  • each extension claw 18 is assigned a hydraulic pivoting device 22, the pivot cylinder 23 of which is articulated to a bearing attachment 24 provided on the rear and center of the dozer blade 7 and whose retractable and extendable pivoting piston 25 is articulated to a bearing flange 26 which projects from the rear of the extension claw 18 .
  • the extension claw 18 in question When the pivoting piston 25 is extended, the extension claw 18 in question is in the laterally projecting operating position B according to FIG. 1, while when the pivoting piston 25 is retracted the extension claw 18 assumes the rest position A according to FIG. 3.
  • the extension claws 18, which are lowered by means of the lifting device 9 together with the dozer blade 7 onto the floor 5 or the floor recess 16, contribute to a substantial increase in the stability of the construction vehicle 1 and thus lead to stability which makes working with the additional Work tools favored.
  • extension claws 18 enlarge the working width of the dozer blade 7, so that the leveling performance can be adapted to the circumstances in the leveling operation, while the extension claws 18 pivoted into the rest position A promote the mobility of the construction vehicle 1 by a comparatively small width in driving operation.
  • FIGS. 5 and 6 differs from that according to FIGS. 1 to 4 essentially only in that the two support devices 27 each have an extension claw 28 are not hydraulically but mechanically pivotable and lockable. Accordingly, a hydraulic swivel device is missing. Rather, on the extension claws 28 a locking lever 29 is articulated at one end, while the other end has a vertical bore and can be fixed by means of a locking bolt 30 either on an inner tab 31 or on an outer tab 32, each of which is at a transverse distance from one another the back of the dozer 7 are provided. With the locking lever 29 attached to the inner bracket 31, the extension claw 28 is in the rest position A (FIG. 6), while with the locking lever 29 connected to the outer bracket 32, the extension claw 28 is in its operating position B (FIG. 5).
  • a stiffening plate 33 which widens laterally towards the dozer blade 7, is provided, which connects to the lever 8 and to which the lifting device 9 engages.
  • the embodiments correspond to one another, so that the same reference numerals are used for the corresponding parts and a further description of these parts is dispensed with.
  • two support devices 34 are provided, each with an extension claw 35, wherein mechanical pivoting by hand is also provided, as in the embodiment according to FIGS. 5 and 6.
  • the main difference is that the extension claws 35 are in the rest position C in front of the dozer blade 7 and not behind it.
  • the or each extension claw 35 has on the back a projecting locking fork 36 which, in the operating position B according to FIG. 7, receives an eye-shaped attachment 37 provided on the rear of the dozer blade 7, so that one continuous locking bore 38 is formed for receiving a locking bolt.
  • the extension claw 35 which can be pivoted about the pivot axis 39, also has on its front side an eye-shaped extension 40 which, in the rest position C, which is indicated in FIG. 7, is received by a locking fork 41 arranged on the front side of the dozer blade 7, a continuous locking hole 42 is formed for receiving a locking bolt.
  • This rest position C is shown in side view in FIG.
  • FIG. 9 corresponds to that according to FIGS. 5 and 6, from which it differs only in that the dozer blade 7 'is divided into a left-hand shield half 43 and a right-hand shield half 44 separated by the longitudinal center plane 6.
  • the two shield halves 43 and 44 each have a coupling shoulder 45 on the back and near the longitudinal center plane 6 with a horizontal bore 46, the two horizontal bores 46 being aligned with one another with the same height alignment of the two shield halves 43 and 44 and a plug pin 47 for connecting the two shield halves 43 and 44 can record.
  • the two blade halves 43 and 44 form a continuous leveling blade 7 ', the two lifting devices 9 always being operated simultaneously and in the same direction. This is shown in Figures 9 and 10.
  • the division of the dozer blade 7 ' allows a different height adjustment of the two blade halves 43 and 44 when the plug pin 47 is loosened, as shown in FIG. 11 in the front view.
  • This individual height adjustment of the two shield halves 43 and 44 and thus in particular also of the support devices 27 or extension claws 28 arranged at their outer ends enables stable vehicle support even in the event that the floor 5 in the area of the dozer blade 7 ′ has height differences or local floor depressions 16 having.
  • FIGS. 12 and 13 relate to an exemplary embodiment in which a support device 50 is provided at each end of the dozer blade 7, which does not have an extension claw for the dozer blade 7 but a support plate 51. This is pivoted into the rest position A behind the dozer blade 7 in FIG. 12, the pivoting out being indicated in the laterally projecting operating position B.
  • Mechanical pivoting and locking is provided as in the embodiment according to FIGS. 5 and 6, for which purpose a locking lever 29 is provided in the same way as there, which is articulated on the support device 50 and the other end of which is optionally by means of a locking bolt with an inner tab 31 (Rest position A) or an outer tab 32 (operating position B) can be connected.
  • the support plate 51 can be adjusted in height relative to the dozer blade 7 by means of a hand crank 52.
  • the support device 50 has a vertically arranged housing 53, with which the pivot lever 54 articulated on the dozer blade 7 is firmly connected.
  • a sleeve-shaped nut is rotatably mounted, which can be rotated by means of the hand crank 52 and which is screwed to a threaded spindle 55, on the lower end of which protrudes downward from the housing 53, the support plate 51 is exchangeably attached by means of a horizontal bolt 56. In this way, the support plate 51 can be extended by rotating the crank handle 52 down to abut the floor 5 or a local floor recess 16.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Operation Control Of Excavators (AREA)
  • Agricultural Machines (AREA)
  • Body Structure For Vehicles (AREA)
EP93112324A 1992-09-03 1993-07-31 Lame de nivellement avec dispositifs stibilisateurs supplémentaires Withdrawn EP0585624A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924229459 DE4229459A1 (de) 1992-09-03 1992-09-03 Baufahrzeug
DE4229459 1992-09-03

Publications (1)

Publication Number Publication Date
EP0585624A1 true EP0585624A1 (fr) 1994-03-09

Family

ID=6467160

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112324A Withdrawn EP0585624A1 (fr) 1992-09-03 1993-07-31 Lame de nivellement avec dispositifs stibilisateurs supplémentaires

Country Status (4)

Country Link
EP (1) EP0585624A1 (fr)
CZ (1) CZ279215B6 (fr)
DE (1) DE4229459A1 (fr)
HU (1) HU212314B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0637533A1 (fr) * 1993-08-04 1995-02-08 Steyr-Daimler-Puch Aktiengesellschaft Dispositif de support pour un véhicule de dépannage
FR2772404A1 (fr) * 1997-12-15 1999-06-18 Liebherr Hydraulikbagger Appareil de travail automoteur, de preference excavateur hydraulique, comportant une lame niveleuse pouvant etre relevee et abaissee
EP0992630A2 (fr) * 1998-10-07 2000-04-12 Maschinenfabrik Sennebogen GmbH Engin de travaux avec support de lame nivelleuse
EP1355011A3 (fr) * 2002-04-18 2004-02-25 Liebherr-Hydraulikbagger GmbH Lame de support
EP2712965A1 (fr) * 2012-09-27 2014-04-02 CNH Italia S.p.A. Lame niveleuse pliable des deux côtés pour bulldozer

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20117775U1 (de) * 2001-10-31 2003-03-20 Liebherr-Hydraulikbagger GmbH, 88457 Kirchdorf Räum- bzw. Planierschild für Baumaschinen
CN106948404A (zh) * 2017-04-12 2017-07-14 管中林 一种具有多功能的步履挖掘机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231991A (en) * 1963-05-31 1966-02-01 Wandscheer Evert Snow ridge scraper
US3378084A (en) * 1965-01-04 1968-04-16 Ulrich Foundation Inc Earth materials handling apparatus
US3977547A (en) * 1971-06-07 1976-08-31 Holopainen Vaino J Material handling apparatus
US4099578A (en) * 1977-02-10 1978-07-11 Stevens John L Hinged bulldozer blade
EP0007000A1 (fr) * 1978-06-19 1980-01-23 The Logan Manufacturing Company Dispositif du type charrue

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3231991A (en) * 1963-05-31 1966-02-01 Wandscheer Evert Snow ridge scraper
US3378084A (en) * 1965-01-04 1968-04-16 Ulrich Foundation Inc Earth materials handling apparatus
US3977547A (en) * 1971-06-07 1976-08-31 Holopainen Vaino J Material handling apparatus
US4099578A (en) * 1977-02-10 1978-07-11 Stevens John L Hinged bulldozer blade
EP0007000A1 (fr) * 1978-06-19 1980-01-23 The Logan Manufacturing Company Dispositif du type charrue

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0637533A1 (fr) * 1993-08-04 1995-02-08 Steyr-Daimler-Puch Aktiengesellschaft Dispositif de support pour un véhicule de dépannage
FR2772404A1 (fr) * 1997-12-15 1999-06-18 Liebherr Hydraulikbagger Appareil de travail automoteur, de preference excavateur hydraulique, comportant une lame niveleuse pouvant etre relevee et abaissee
EP0992630A2 (fr) * 1998-10-07 2000-04-12 Maschinenfabrik Sennebogen GmbH Engin de travaux avec support de lame nivelleuse
EP0992630A3 (fr) * 1998-10-07 2003-06-04 Maschinenfabrik Sennebogen GmbH Engin de travaux avec support de lame nivelleuse
EP1355011A3 (fr) * 2002-04-18 2004-02-25 Liebherr-Hydraulikbagger GmbH Lame de support
EP2712965A1 (fr) * 2012-09-27 2014-04-02 CNH Italia S.p.A. Lame niveleuse pliable des deux côtés pour bulldozer

Also Published As

Publication number Publication date
CZ279215B6 (cs) 1995-01-18
HUT69857A (en) 1995-09-28
HU9302498D0 (en) 1993-11-29
HU212314B (en) 1996-05-28
CZ180393A3 (en) 1994-04-13
DE4229459A1 (de) 1994-03-10

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