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US3491391A - Prefabricated bridge placing vehicle - Google Patents

Prefabricated bridge placing vehicle Download PDF

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Publication number
US3491391A
US3491391A US713852A US3491391DA US3491391A US 3491391 A US3491391 A US 3491391A US 713852 A US713852 A US 713852A US 3491391D A US3491391D A US 3491391DA US 3491391 A US3491391 A US 3491391A
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US
United States
Prior art keywords
bridge
vehicle
support
tracks
boom
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
US713852A
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English (en)
Inventor
Friedhelm Soffge
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.)
Dr Ing HCF Porsche AG
Original Assignee
Dr Ing HCF Porsche 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 Dr Ing HCF Porsche AG filed Critical Dr Ing HCF Porsche AG
Application granted granted Critical
Publication of US3491391A publication Critical patent/US3491391A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof

Definitions

  • the channels each have roller exiting recesses that are of less length than the roller longitudinal spacing with a stop at the rear of each recess, an upwardly diverging roller top engaging surface at the front of each recess, and side V-shaped recess surfaces for guiding the ingress and egress of the rollers with respect to the recesses.
  • a fork-like boom is provided for placing and picking up the bridge with which the bridge is moved out of the vehicle and placed on the opposite side of the trench, or the like to be spanned, by means of support rollers and a chain drive or the like. After this is accomplished, the vehicle must be backed off until the bridge can be placed at the ridge on the vehicle side of the trench.
  • This placing process requires, therefore, a secure anchoring of the bridge at the far side of the trench, which exists only in exceptional cases or when the composition of the soil or ground can be improved by providing the bridge with claws.
  • the placing device of the present invention is capable of picking up bridges which rest in a tilted position.
  • roller support tracks at the end portions of the bridge and in the direction towards the support tracks upper side are provided with recesses limited by means of end stops for the support rollers, which recess is smaller than the distance of the support base of the support rollers one to the other.
  • a free-supporting suspension system of the bridge is thereby obtained with which, after setting the forward end of the bridge down at the opposite side of the trench, the rear support rollers of the support basis slide out of the guide track recesses whereby, with the help of the boom, the bridge may be placed ahead of the vehicle without the need of auxiliary means. If, subsequently, the vehicle is backed up, the outer support rollers of the support base slide out of the guide track recesses without producing a shifting of the bridge which now rests on the ground.
  • a ramp roller top engaging surface is provided adjacent each recess of the support tracks located oppositely the end stops so that the boom, for picking up the bridge, may be stepped in very easily.
  • bridges which are tilted to a certain degree, may be picked up without further provisions.
  • a simple construction of the placing device is obtained thereby, that each of the support tracks consist of a U-shaped channel at the lower girder of the bridge roadway tracks with one of the sliding surfaces connected to the ramp surface and the other sliding surface carrying a vertical end stop for the support rollers.
  • the recess is formed V-shaped between the inner longitudinal sides of the track path.
  • FIGURE 1 shows a side view of the tracked vehicle including the inventive device for placing a track bridge, partially in cross section showing different phases of the placing process of the bridge,
  • FIGURE 2 shows a top view of the end portion of the bridge including the boom and adjacent portions of the vehicle according to FIGURE 1,
  • FIGURE 3 shows a longitudinal cross section through the end portion of the bridge according to FIGURE 1 in an enlarged scale
  • FIGURE 4 shows a cross section along line IVI V of FIGURE 3 and
  • FIGURE 5 shows a cross section along line VV of FIGURE 3.
  • a bridge 2 having parallel roadway tracks is arranged on a tracked vehicle 1 in its transporting position, as shown in dot and dash lines in FIGURE 1, by a boom 3 and a rear support bracket 4.
  • the boom 3, constructed as a single box-section, extends between the roadway tracks 5 and 6 of the bridge 2 and is swingably arranged about a pivot 7 at the vehicle 1.
  • two hydraulic working cylinders 8 are provided which are connected between the vehicle and both sides of the short arm 9 of the boom 3.
  • the long arm 10 of the boom 3 is provided at its front end and at each side of the box-section with bearing rollers 11 having a common axle of rotation, and at a distance therefrom with a bearing roller pair 12.
  • the bearing roller pair 12 is driven hydraulically or electrically by a motor 13 built into the box-section and effects the forward longitudinal movement of the bridge during placement.
  • the tracks or sections 5 and 6 of the bridge 2 which may be constructed of box-sections or of latticed girders and held in spaced relationship by connecting members 25, are provided at the inner longitudinal sides 5' and 6' with U-shaped support channels or tracks 14 and 15.
  • the support tracks 14, 15 are at both end portions 16 of the bridge and substantially parallel to the top side of the track path 17, provided with a cut-out or recess S which is smaller than the support basis B of the bearing rollers 11 and 12 one to the other.
  • the cut-out S is limited by means of a stop 18 and an upwardly diverging ramp surface 19.
  • the stop 18 is arranged at the end of the lower roller engaging surface 20 of each of the support tracks 14, 15 whereas the ramp surface 19 forms an extension of the upper roller engaging surface 21 for the support rollers and run out wedge-shaped to the track path 17.
  • the inner longitudinal sides 5 and 6' 'of the roadway tracks are provided, in the region of the cut-out S, with V-shaped lateral surfaces 22, 23 at an angle one to the other (FIGURE 5) which extend between the upper side of the track path 17 and the perpendicular leg of the guide tracks 14 and 15.
  • Loading of the bridge logically may be accomplished in the reverse sequence whereby the V-shaped side surfaces 22, 23 of the cut-out S as well as the run-up surface 1'9 may be used for guiding the support rollers 11 of the boom 3 into the support tracks 14, 15. With the help of the ramp surface 19 of the support tracks it is further possible to pick up the bridge placed on an angle or resting in a tilted position as shown in FIGURE 4.
  • a vehicle arrangement for the placing of a prefabricated bridge comprising: a powered vehicle; a prefabricated bridge having two longitudinally extending substantially parallel roadway sections; a boom pivotally mounted to the powered vehicle and having means for slidably supporting the bridge for movement relative to the motor vehicle in the longitudinal direction of the bridge; power means for pivoting said boom; said supporting means including longitudinally aligned spaced support rollers on said boom and support tracks extending longitudinally along said bridge and receiving therein said support rollers; each of said support tracks at the longitudinal end of said bridge rearward of the advancing direction of said bridge relative to said vehicle having an upwardly opening roller exiting recess of a longitudinal extent at least as great as one roller but less than the longitudinal distance between said longitudinally aligned spaced support rollers, and a rear stop on said support track for engaging the rearmost roller for limiting forward advance of said bridge relative to said powered vehicle.
  • each of said support tracks includes a longitudinally extending upper roller engaging surface that rearwardly diverges upwardly immediately forward of said recess providing means for guiding the support rollers into and out of said support tracks during pick up and placement of said bridge, respectively.
  • each of said support tracks consists of a side opening U shaped channel longitudinally extending along the lower portion of each roadway section, respectively, and having lower support roller engaging longitudinally extending surface; said lower roller engaging surface being joined at its rearmost end to the rear stop extending substantially perpendicular thereto.
  • each of support tracks comprises a generally inwardly opening longitudinally extending channel member; said support rollers being mounted on opposite sides of said boom for engagement in respective ones of said channel members and being longitudinally spaced from each other on each side of said boom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Jib Cranes (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
US713852A 1967-03-31 1968-03-18 Prefabricated bridge placing vehicle Expired - Lifetime US3491391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0041769 1967-03-31

Publications (1)

Publication Number Publication Date
US3491391A true US3491391A (en) 1970-01-27

Family

ID=7378071

Family Applications (1)

Application Number Title Priority Date Filing Date
US713852A Expired - Lifetime US3491391A (en) 1967-03-31 1968-03-18 Prefabricated bridge placing vehicle

Country Status (4)

Country Link
US (1) US3491391A (de)
DE (1) DE1658623C3 (de)
FR (1) FR1558757A (de)
GB (1) GB1169125A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597784A (en) * 1969-04-12 1971-08-10 Gehlen Hermann W Vehicle with dismountable ramp
US4288881A (en) * 1978-10-24 1981-09-15 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Bridge laying apparatus
WO1984003725A1 (en) * 1983-03-14 1984-09-27 Harsco Corp Bridge launcher
US4493122A (en) * 1982-05-08 1985-01-15 Ibek Ingenieurbuero Echtler Kaiserslautern Gmbh Motor vehicle for transporting and laying a fixed bridge
WO1985005389A1 (en) * 1984-05-24 1985-12-05 Harsco Corporation Bridge transporting and launching trailer and method
US5067191A (en) * 1988-11-12 1991-11-26 Man Gutehoffnungshutte Ag Bridge layer
US5617598A (en) * 1994-08-23 1997-04-08 Man Gutehoffnungshutte Aktiengesellschaft Armored bridge-laying vehicle with laying means
US10648140B2 (en) * 2017-01-17 2020-05-12 Krauss-Maffei Wegmann Gmbh & Co. Kg Bridge laying device for laying a bridge, in particular a single-piece bridge

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3517724A1 (de) * 1984-09-10 1986-03-20 Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart Verlegesystem fuer brueckenelemente
DE4434027C2 (de) * 1994-09-23 1997-03-20 Krupp Foerdertechnik Gmbh Führungsnut an Brückenabschnitten o. dgl. von verlegbaren Brücken und Verfahren zum Reparieren derselben
DE29507445U1 (de) * 1995-05-04 1995-07-06 MAN Technologie AG, 86153 Augsburg Führungsnut eines Untergurtes an Brückenabschnitten

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3597784A (en) * 1969-04-12 1971-08-10 Gehlen Hermann W Vehicle with dismountable ramp
US4288881A (en) * 1978-10-24 1981-09-15 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Bridge laying apparatus
US4493122A (en) * 1982-05-08 1985-01-15 Ibek Ingenieurbuero Echtler Kaiserslautern Gmbh Motor vehicle for transporting and laying a fixed bridge
WO1984003725A1 (en) * 1983-03-14 1984-09-27 Harsco Corp Bridge launcher
US4510637A (en) * 1983-03-14 1985-04-16 Lucjan Zlotnicki Bridge launcher
WO1985005389A1 (en) * 1984-05-24 1985-12-05 Harsco Corporation Bridge transporting and launching trailer and method
US4602399A (en) * 1984-05-24 1986-07-29 Harsco Corporation Bridge transporting and launching trailer and method
US5067191A (en) * 1988-11-12 1991-11-26 Man Gutehoffnungshutte Ag Bridge layer
US5617598A (en) * 1994-08-23 1997-04-08 Man Gutehoffnungshutte Aktiengesellschaft Armored bridge-laying vehicle with laying means
US10648140B2 (en) * 2017-01-17 2020-05-12 Krauss-Maffei Wegmann Gmbh & Co. Kg Bridge laying device for laying a bridge, in particular a single-piece bridge

Also Published As

Publication number Publication date
FR1558757A (de) 1969-02-28
DE1658623C3 (de) 1975-10-23
DE1658623B2 (de) 1975-03-13
DE1658623A1 (de) 1970-09-24
GB1169125A (en) 1969-10-29

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