US3421420A - Vibratory road roller with steering arrangement - Google Patents

Vibratory road roller with steering arrangement Download PDF

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Publication number
US3421420A
US3421420A US617242A US3421420DA US3421420A US 3421420 A US3421420 A US 3421420A US 617242 A US617242 A US 617242A US 3421420D A US3421420D A US 3421420DA US 3421420 A US3421420 A US 3421420A
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US
United States
Prior art keywords
roller
road roller
rollers
road
slide member
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.)
Expired - Lifetime
Application number
US617242A
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English (en)
Inventor
Paul Piatkowski
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.)
BWS Technologie GmbH
Original Assignee
Maschinenfabrik Buckau R Wolf AG
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 Maschinenfabrik Buckau R Wolf AG filed Critical Maschinenfabrik Buckau R Wolf AG
Application granted granted Critical
Publication of US3421420A publication Critical patent/US3421420A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
    • B62D7/04—Steering linkage; Stub axles or their mountings for pivoted bogies with more than one wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D15/00—Steering not otherwise provided for
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/282—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit

Definitions

  • a vibratory road roller including a frame and a pair of spaced rollers turnably mounted in bearings carried by the frame.
  • the bearings of at least one roller are mounted on the frame so that one of the bearings is turnable about a substantially vertical tilting axis and the other movable in a plane normal to the tilting axis.
  • the road roller includes further means for moving the movable bearing in the aforementioned plane to tilt thereby the axis of said one roller about the aforementioned tilting axis for steering the road roller along curves.
  • the present invention relates to a steering arrangement for a vibratory road roller having two driven rollers arranged spaced from each other in direction of movement of the road roller and each mounted turnably about its axis in a common frame.
  • each of the road rollers is divided in axial direction into two parts and in which the drive means for the rollers are connected tothe two parts and constructed in such a manner that the two roller parts may be driven with different circumferential speeds.
  • This known steering arrangement is relatively complicated and therefore expensive to manufacture.
  • driving the two roller parts with different speeds during steering of the road roller along curves may lead to damaging of the road cover to be rolled.
  • Another steering arrangement is also known in which the frame, in which the two rollers are turnably mounted, is divided into two parts which are linked together so that the two frame parts may be tilted relative to each other about a vertical tilting axis during steering of the road roller along curves.
  • This arrangement requires a complicated frame and this arrangement complicates also the drive of the two rollers.
  • -It is an object of the present invention to provide for a steering arrangement for a road roller of the aforementioned .kind which avoids the disadvantages of such arrangements known in the art.
  • the road roller according to the present invention mainly comprises support means, a pair of rollers carried spaced from each other in direction transverse to the axes thereof on the support means, a pair of bearing means for each of the rollers and mounting each roller in the region of opposite ends thereof turnable about its axis on the support means, one of the bearing means of at least one roller being mounted in the support means tiltable about a substantially vertical tilting axis, and means mounting the other bearing means of the one roller in the support means movable in a plane substantially normal to the tilting axis, drive means carried by the support means and connected at least to one of the rollers for rotating the same about its axis, and operating means connected to the other bearing means of the one roller for tilting the same about the aforementioned tilting -axis so as to steer the road roller.
  • the aforementioned support means preferably comprise an elongated rigid frame carrying the rollers spaced from each other and the aforementioned operating means are preferably connected to the mounting means mounting the other bearing means of the one roller for moving the other bearing means in the aforementioned plane to tilt thereby the axis of the one roller about the aforementioned tilting axis.
  • the mounting means preferably comprise guide means formed in the rigid frame and a slide member guided in the guide means and carrying .the other bearing means of the one roller.
  • each of the rollers comprises shaft means having opposite end portions respectively turn-ably mounted in the aforementioned bearing means and the drive means comprises a gear fixedly mounted on that end portion of the shaft means of the one roller which is mounted in the aforementioned other bearing means, :a drive pinion meshing with the gear and a housing turnably mounting the drive pinion and connected to the slide member.
  • FIG. 1 is a sectional view of the road roller according to the present invention, the section being taken substantially in a plane passing through the axes of the two rollers;
  • FIG. 2 is a side view of the road roller according to the present invention drawn to a slightly smaller scale than FIG. 1;
  • FIG. 3 is a vertical section taken along the axis of the left roller, as viewed in FIG. 2.
  • the road roller comprises support means in the form of a frame 1, of a cross-section as best shown in FIG. 1, in which a pair of rollers 31: and 3b are carried spaced from each other in direction transverse to the axes thereof.
  • Each of the rollers 3a and 3b includes a pair of inwardly displaced end walls 2 fixed to the peripheral wall of the roller in any convenient manner, for instance by welding, and shaft means including a pair of stud shafts 4a and 4b fixed to the end Walls 2, for instance by welding, and projecting outwardly therefrom coaxial with the peripheral surface of the roller, as best shown in FIG. 1 for the roller 3a.
  • the frame 1 carries in a known manner a plate 5 resiliently supported on springs, on which a motor 6 provided with a speed reducer is mounted.
  • the drive shaft 7 of the speed reducer is connected by means of a drive chain to a double-sprocket wheel 8 from which the drive is transmitted by means of chain drives 9 to sprocket wheels 10 respectively provided for the rollers 3a and 3b and each turnably mounted on a portion 11 of the frame 1, as best shown in FIG. 3 for the roller 3a.
  • the stud shaft 4b carries fixedly connected thereto a gear 12 meshing with a pinion 13, and a Cardan shaft 14 connects the sprocket wheel 10 with the pinion 13, as best shown in FIG. 3 for the roller 3a.
  • the roller 31) may be driven from the respective sprocket wheel in the same manner.
  • the stud shaft 4a of the roller 3a is mounted in a roller bearing 15, as best shown in FIG. 1, the inner race of which is tiltable about a substantially vertical tilting axis indicated by the small circle in the region of the end of the stud shaft 4a in FIG. 1, whereas the roller bearing 16 for the opposite stud shaft 4b of the roller 3a is mounted in a slide member 17 guided in guide means 18, best shown in FIG. 2, for movement in a substantially horizontal plane. Operating means are connected to the slide member 17 for moving the same in the aforementioned plane in the guide means 18.
  • the operating means may be constituted by hydraulic cylinder and piston means, the piston rod 20 of which is pivotally connected at the free end thereof to one end of the slide member 17, whereas the cylinder 19 is pivotally connected at one end thereof to the frame 1, as best shown in FIG. 2.
  • a bearing housing 21 is fixedly connected to the slide member 17 and the pinion 13 is turnably mounted in the bearing housing 21.
  • the road roller is preferably a vibratory road roller provided with an unbalance 24 located between the rollers 3a and 3b, as schematically indicated in FIG. 2, and driven in any convenient manner, not shown in the drawing, from the drive motor 6 to subject during rotation thereof the road roller to vibrations.
  • biasing means which may be in the form of a wedge-shaped plate 22 are provided, for instance, between the top face of the slide member 17 and the face of the guide means 18 co-operating therewith, which wedge-shaped plate 22 is adjustable in longitudinal direction by means of an adjusting screw 23 so as to press the bottom face of the slide member 17 against the corresponding face of the guide means 18 with a force greater than the vibrating force provided by the unbalancing means 24.
  • a steerable road roller comprising, in combination, support means; a pair of rollers carried spaced from each other in direction transverse to the axes thereof on said support means; shaft means for each roller coaxially arranged therewith and fixedly connected thereto; a pair of bearing means for each roller and mounting the shaft means of the respective seller in the region of opposite ends thereof turnably about its axis; steering means for steering said road roller, said steering means comprising means mounting one of the bearing means of at least one of said rollers tiltable about substantially vertical tilting axis, means mounting the other bearing means of said one roller on said support means movable in a plane substantially normal to said tilting axis, and operating means connected to said other bearing means for moving the latter in said plane for tilting thereby the shaft means of said one roller and the latter fixedly connected to said shaft means about said tilting axis to thereby steer said road roller; and drive means carried by said support means and connected to at least one of said rollers for rotating the same about its axis.
  • drive means include further motor means carried by said frame and transmission means transmitting a drive from said motor to said drive pinion.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
US617242A 1966-02-23 1967-02-20 Vibratory road roller with steering arrangement Expired - Lifetime US3421420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM0068496 1966-02-23

Publications (1)

Publication Number Publication Date
US3421420A true US3421420A (en) 1969-01-14

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ID=7312633

Family Applications (1)

Application Number Title Priority Date Filing Date
US617242A Expired - Lifetime US3421420A (en) 1966-02-23 1967-02-20 Vibratory road roller with steering arrangement

Country Status (5)

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US (1) US3421420A (da)
CH (1) CH443384A (da)
DK (1) DK123786B (da)
NL (1) NL6611115A (da)
SE (1) SE312570B (da)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167360A (en) * 1977-04-04 1979-09-11 Trumbull Corporation Process and apparatus for applying and compacting castable material in strips on a sloped surface
FR2584110A1 (fr) * 1986-06-18 1987-01-02 Fast Verdini Spa Correcteur de direction pour des machines a scier les revetements en asphalte, beton ou similaire
WO1988007467A1 (fr) * 1987-04-03 1988-10-06 Societe Financiere D'expansion Sa Engin bicycle a roues avant et arriere directrices
US6350083B1 (en) * 1999-05-03 2002-02-26 Tod Paladeni Powered roller screed
US6402425B1 (en) * 1999-05-03 2002-06-11 Tod Paladeni Powered roller screed having a split drive tube
US8414220B1 (en) * 2012-02-09 2013-04-09 Josei Techno Co., Ltd. Apparatus for flattening floor

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US505944A (en) * 1893-10-03 Snow-roller
US1211811A (en) * 1914-04-11 1917-01-09 James G Bailey Roller.
US1304741A (en) * 1919-05-27 Road and street planer
US1650746A (en) * 1924-06-20 1927-11-29 Marie M Stubbs Self-adjusting and self-advancing roller for finishing concrete and the like
US2132107A (en) * 1935-09-23 1938-10-04 Hamm Alois Road roller
US2691927A (en) * 1948-12-24 1954-10-19 Marion G Denton Self-propelled ground working and clearing machine
US3048089A (en) * 1958-09-12 1962-08-07 Bomag Bopparder Machinenbau Ge Land roller for rolling road surfaces and the like
US3339468A (en) * 1964-02-26 1967-09-05 Stothert & Pitt Ltd Vibratory rollers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US505944A (en) * 1893-10-03 Snow-roller
US1304741A (en) * 1919-05-27 Road and street planer
US1211811A (en) * 1914-04-11 1917-01-09 James G Bailey Roller.
US1650746A (en) * 1924-06-20 1927-11-29 Marie M Stubbs Self-adjusting and self-advancing roller for finishing concrete and the like
US2132107A (en) * 1935-09-23 1938-10-04 Hamm Alois Road roller
US2691927A (en) * 1948-12-24 1954-10-19 Marion G Denton Self-propelled ground working and clearing machine
US3048089A (en) * 1958-09-12 1962-08-07 Bomag Bopparder Machinenbau Ge Land roller for rolling road surfaces and the like
US3339468A (en) * 1964-02-26 1967-09-05 Stothert & Pitt Ltd Vibratory rollers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167360A (en) * 1977-04-04 1979-09-11 Trumbull Corporation Process and apparatus for applying and compacting castable material in strips on a sloped surface
FR2584110A1 (fr) * 1986-06-18 1987-01-02 Fast Verdini Spa Correcteur de direction pour des machines a scier les revetements en asphalte, beton ou similaire
WO1988007467A1 (fr) * 1987-04-03 1988-10-06 Societe Financiere D'expansion Sa Engin bicycle a roues avant et arriere directrices
US4991861A (en) * 1987-04-03 1991-02-12 Carn Rozenn M F Coaster vehicle having front and rear steerable wheels
US6350083B1 (en) * 1999-05-03 2002-02-26 Tod Paladeni Powered roller screed
US6402425B1 (en) * 1999-05-03 2002-06-11 Tod Paladeni Powered roller screed having a split drive tube
US8414220B1 (en) * 2012-02-09 2013-04-09 Josei Techno Co., Ltd. Apparatus for flattening floor

Also Published As

Publication number Publication date
DK123786B (da) 1972-07-31
SE312570B (da) 1969-07-21
NL6611115A (da) 1967-08-24
CH443384A (de) 1967-09-15

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