EP1854921A2 - Ausziehbohle für einen Straßenfertiger - Google Patents

Ausziehbohle für einen Straßenfertiger Download PDF

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Publication number
EP1854921A2
EP1854921A2 EP07016652A EP07016652A EP1854921A2 EP 1854921 A2 EP1854921 A2 EP 1854921A2 EP 07016652 A EP07016652 A EP 07016652A EP 07016652 A EP07016652 A EP 07016652A EP 1854921 A2 EP1854921 A2 EP 1854921A2
Authority
EP
European Patent Office
Prior art keywords
screed
carriage
base
actuator
section
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.)
Granted
Application number
EP07016652A
Other languages
English (en)
French (fr)
Other versions
EP1854921B1 (de
EP1854921A3 (de
EP1854921B9 (de
Inventor
Christopher W. Rahn
Michael S. Eppes
Eric Potter
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.)
Blaw Knox Construction Equipment Co
Original Assignee
Blaw Knox Construction Equipment Co
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 Blaw Knox Construction Equipment Co filed Critical Blaw Knox Construction Equipment Co
Priority claimed from EP04718171A external-priority patent/EP1604066B1/de
Publication of EP1854921A2 publication Critical patent/EP1854921A2/de
Publication of EP1854921A3 publication Critical patent/EP1854921A3/de
Publication of EP1854921B1 publication Critical patent/EP1854921B1/de
Application granted granted Critical
Publication of EP1854921B9 publication Critical patent/EP1854921B9/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • E01C19/48—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 laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
    • 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
    • E01C2301/00—Machine characteristics, parts or accessories not otherwise provided for
    • E01C2301/14—Extendable screeds
    • E01C2301/16—Laterally slidable screeds

Definitions

  • the present invention is again an extension screed for a main screed of a paving vehicle.
  • the extension screed comprises two base members, each base member being movably connectable with the main screed.
  • Two vertical actuators are each connectable with the main screed and are connected with a separate one of the two base members. Each vertical actuator is configured to linearly displace the connected base member with respect to the main screed in opposing, generally vertical directions.
  • a carriage configured to support a screed plate is connected with each one of the two base members such that the two actuators are configured to displace the carriage with respect to the main screed in opposing, generally vertical directions and to alternatively pivot the carriage with respect to the main screed within a generally vertical plane.
  • At least one vertical actuator 16 is connectable with the main screed 3 and is configured to linearly displace the base 12 with respect to the main screed 3 in opposing, generally vertical, upward and downward directions V U , V D , respectively.
  • the vertical actuator 16 is also configured to alternatively pivot the base 12 with respect to the main screed 3 within a generally vertical plane P v extending vertically through the base 12 (see Fig. 15).
  • a horizontal actuator 18 is connected with the base 12 and is configured to linearly displace the carriage 14 with respect to the base 12 in opposing, outer and inner, generally horizontal directions H O and H I , respectively, and thus laterally toward and away from, respectively, the screed assembly centerline 1a.
  • the carriage 14 and thus the extension screed plate 11 are each substantially vertically displaced with respect to the main screed 3.
  • the two actuators 17A, 17B displace two base portions 20A, 20B by different vertical distances d v (e.g., d 1 , d 2 in Fig.
  • the extension screed 10 may be configured such that the outer lateral end 14a is spaced inwardly from the main screed outer end 3a, if desired.
  • the carriage 14 may be may be constructed with only a single section or frame (not shown), such that the carriage 14 only moves between first and second positions P 1 , P 2 (and positionable or locatable at all positions therebetween), as discussed in further detail below.
  • the extension screed 10 of the present invention is preferably used with a screed assembly 1 that is connected to the paving vehicle 2 by a pair of tow arms 5, such that the screed assembly 1 is towed from the rear 2a of the vehicle 2.
  • the vehicle 2 and screed assembly 1 both travel generally along the screed centerline 1a, or more accurately stated, the arrangement of the screed 1 with respect to the vehicle 2 causes the screed assembly 1 to be centered about the line 1a extending longitudinally through the vehicle 2.
  • the extension screed 10 is used as a pair of extension screeds 10 spaced apart laterally so as to be disposed on opposing sides of the assembly centerline 1a, although a single extension 10 may be used if so desired.
  • Two tubular mounting bearings 35 each extend generally vertically between and through a separate one of the two pairs of aligned bracket sections 32 and each has a central bore 36 sized to slidably receive a slide post 40 of each of the preferred base portions 20A, 20B, as discussed in further detail below.
  • each pair of aligned bracket sections 32 includes a pair of upper and lower aligned openings 37, 39 sized to receive a separate one of the two preferred vertical actuators 16, as described below.
  • the base 12 were alternatively constructed of a single frame or body (not shown) as opposed to separate portions, the preferred two vertical actuators 17A, 17B may be connected with such a base 12 so as to still be capable of vertically displacing and/or pivoting the extension screed 10, as discussed below.
  • the positions of the base portions 20A, 20B are indicated by reference to a point "p" on each base portion 20A or 20B, the particular points selected having no particular relevance other than as a convenient point of reference for purposes of discussion of the present invention.
  • the base portions 20A, 20B each include a body 38 and a slide post 40 attached to and extending vertically downwardly from the body 38.
  • the base bodies 38 each preferably include a generally rectangular main section 42 and a connective section 44 extending generally horizontally and rearwardly from a rear vertical surface 42a of the body main section 42.
  • the body main section 42 has upper and lower generally circular bearing openings 48A, 48B extending generally horizontally through the body section 42 between opposing left and right vertical surfaces 42c, 42d of the body section 42, each opening 48A or 48B being configured to receive and slidably support a portion of a first guide member 76, as described below.
  • the body main section 42 of the outer base portion 20B has a pair of aligned openings 55 extending into the central hole 54, one extending from the front surface 42a and the other extending from the rear vertical surface 42b.
  • the pin 56 is installed through the two openings 55 and extends through the actuator inner end 19a to rotatably connect the first horizontal actuator 19 to the outer base portion 20B.
  • the connective section 44 also includes a mounting tab 62 extending outwardly from the vertical wall section 60 and having a through-hole 63.
  • the mounting tab through-hole 63 is configured to receive a portion of a vertical actuator 16 to connect the actuator 18 with the base 12, as discussed in further detail below.
  • cylindrical bar 64 may have any other appropriate cross-sectional shape, such as for example ovular or rectangular, or the slide post 40 may be a multi-piece fixed or telescoping member (none shown).
  • the base portions 20A, 20B may each be constructed without a slide post 40 or any other member for directly connecting the base 12 with the main frame 3, such that the extension screed 10 is then connected to the main screed 3 merely by the one or more vertical actuators 16.
  • the movable portions 68 may attached to the main screed 3 and the fixed portions 70 (e.g., cylinders 74) may be mounted on the base 12, such that relative displacement of the movable portions 68 displaces the "fixed" portions 70 and thereby also displaces the base 12.
  • extension screed 10 may include only a single vertical actuator 16 or may include three or more vertical actuators 16 (neither shown).
  • the present invention includes these and all other configurations of the vertical actuators 16 that enable the extension screed 10 to function generally as described herein.
  • the first or inner frame 26 is preferably formed as a generally rectangular box 80 having an open rear end 80a and defining or bounding the generally hollow interior space S 1 of the frame 26 (discussed above).
  • the first frame interior space S 1 is sized to contain the preferred two base portions 20A, 20B, the first guide members 78, the first horizontal actuator 19 and a major portion of the second horizontal actuator 21, as discussed above and in further detail below.
  • the first frame box 80 includes five wall sections or walls: top and bottom walls 81 and 82, respectively, inner and outer side walls 83 and 84, respectively, and a front wall 85.
  • each side wall plate 90 includes two generally tubular support collars 92 each disposed in a separate one of two vertically-spaced circular openings 94 and sized to receive a tubular end 77a of one of the first guide members 76.
  • the support collars 92 in each side wall 83, 84 are each generally aligned with one collar 92 in the other side wall 84, 83, respectively, such that each horizontally-spaced pair of aligned collars 92 support one of the two first guide members 76, and thereby connects the member 76 with the first frame 26.
  • the inner side wall 83 includes a circular mounting plate 96 disposed generally between the two collars 92 configured to attach a rod end 158a of the preferred first horizontal actuator 19 (as discussed below) to the inner frame 26. More specifically, the plate 96 has an inner surface 96a against which the first actuator rod end 158a is abutted and a through-hole 97 sized to permit insertion of threaded fastener (not indicated) through the plate 96 so as to engage with a threaded hole (not indicated) in the rod 158, and thereby removably connect the first actuator 19 to the first frame 26 of the carriage 14.
  • the second or outer frame 28 of the second carriage section 24 preferably includes an upper, carrier subframe 27 slidably connected with the first, inner frame 26 and a lower, screed support subframe 29 attached to the carrier subframe 29.
  • the carrier subframe 27 is preferably formed as a generally rectangular box 100 having an open rear end 100a and an open inner side end 100b, the box 100 bounding the second frame interior space S 2 , as mentioned above.
  • the second frame box 100 is sized larger than the first frame box 80 such that the first, inner frame 26 is receivable within the second frame interior space S 2 .
  • the top and bottom walls 101 and 102 each extend generally horizontally and generally parallel with the other wall 102, 101 and are spaced apart by a greater vertical distance (not indicated) than the vertical spacing distance (not indicated) between the top and bottom walls 81, 82 of the inner frame box 80.
  • the top and bottom walls 101, 102 each have an inner contact surface 106 slidably contactable with the outer surfaces 81a, 82a of the top and bottom walls 81, 82, respectively, of the inner frame 26.
  • the two walls 101, 102 function as slide members 107 that slidably displace against the rail members 87 of the inner frame 26 when the second carriage section outer frame 28 displaces with respect to the first carriage section inner frame 26 (and with respect to the base 12).
  • the carriage 14 is preferably formed of two sections 22, 24 that include inner and outer frames 26, 28, respectively, it is within the scope of the present invention to construct the carriage 14 in any other appropriate manner.
  • the inner and outer carriage sections 22, 24 may each be formed with an appropriate structure other than as a rectangular box frame as described above, such as a skeletal truss, a single "backboard" member or plate, a solid bar or beam, etc., of any appropriate shape (no alternatives shown).
  • the carriage 14 may include only a single section (i.e., as opposed to inner and outer sections) of any appropriate construction, connectable with the base 12 and configured to support the screed plate 11.
  • the scope of the present invention encompasses these and all other appropriate structures of the carriage 14 capable of supporting the screed plate 11 and enabling the extension screed 10 to function generally as described herein.
  • the horizontal actuators 18 may each be provided by a motor driven screw, a solenoid, a slider-crank mechanism, by a rack-and-pinion mechanism, a three-bar or four-bar linkage mechanism, a pneumatic,cylinder, a solenoid, etc, such that the actuator movable portion 152 is provided by the "nut" or other threaded hole component of a motor-screw actuator, the rack of a rack-and-pinion mechanism, the slider of a slider crank mechanism, the rod of a solenoid, etc.
  • the extension screed 10 may include only a single horizontal actuator 18, such as if the carriage 14 included only a single frame (not shown), or may include three or more horizontal actuators 18. The present invention includes these and all other configurations of the horizontal actuators 18 that enable the extension screed 10 to function generally as described herein.
  • the preferred horizontal actuators 19, 21 function to displace the first and second carriage sections 22, 24, respectively, generally in the following manner.
  • the rod 159 of the second horizontal actuator 21 is extendable outwardly along the rod axis 161 so as to push the second frame 28, and thus the screed plate 11, to displace with respect to the first frame 26 in the outward horizontal direction H O and generally away from the screed centerline 1a.
  • the first horizontal actuator 19 is extendable along the rod axis 160 so as to push the first frame 26 (and thus second frame 28) to displace in the inward horizontal direction H I and generally toward the screed centerline 1a.
  • the second horizontal actuator 21 is retractable along the rod axis 161 so as to pull the second frame 28 to displace in the inward horizontal direction H I and generally toward the screed centerline 1a, such that the carriage outer end 14a is located proximal to the outer end of the main screed 3.
  • embodiments disclosed herein include but are not limited to:

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Road Paving Machines (AREA)
EP07016652.5A 2003-03-07 2004-03-05 Ausziehbohle für einen Straßenfertiger Expired - Fee Related EP1854921B9 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45288303P 2003-03-07 2003-03-07
EP04718171A EP1604066B1 (de) 2003-03-07 2004-03-05 Ausziehbohle für strassenfertiger

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP04718171.4 Division 2004-03-05
EP04718171A Division EP1604066B1 (de) 2003-03-07 2004-03-05 Ausziehbohle für strassenfertiger

Publications (4)

Publication Number Publication Date
EP1854921A2 true EP1854921A2 (de) 2007-11-14
EP1854921A3 EP1854921A3 (de) 2008-12-03
EP1854921B1 EP1854921B1 (de) 2012-12-26
EP1854921B9 EP1854921B9 (de) 2013-07-03

Family

ID=38573276

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07016652.5A Expired - Fee Related EP1854921B9 (de) 2003-03-07 2004-03-05 Ausziehbohle für einen Straßenfertiger

Country Status (1)

Country Link
EP (1) EP1854921B9 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10028819A1 (de) 1999-06-15 2001-01-04 Sumitomo Constr Machinery Mfg Verteilvorrichtung bei einem Straßenpflasterfahrzeug wie einer Asphaltiermaschine
EP1239082A2 (de) 2001-03-09 2002-09-11 Joseph Vögele AG Ausziehbohle für einen Strassenfertiger

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5924819A (en) * 1998-01-23 1999-07-20 Caterpillar Paving Products Linkage mechanism for an extendable asphalt paver screed

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10028819A1 (de) 1999-06-15 2001-01-04 Sumitomo Constr Machinery Mfg Verteilvorrichtung bei einem Straßenpflasterfahrzeug wie einer Asphaltiermaschine
EP1239082A2 (de) 2001-03-09 2002-09-11 Joseph Vögele AG Ausziehbohle für einen Strassenfertiger

Also Published As

Publication number Publication date
EP1854921B1 (de) 2012-12-26
EP1854921A3 (de) 2008-12-03
EP1854921B9 (de) 2013-07-03

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