US20050212278A1 - Swiveling roll bar - Google Patents

Swiveling roll bar Download PDF

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Publication number
US20050212278A1
US20050212278A1 US11/086,243 US8624305A US2005212278A1 US 20050212278 A1 US20050212278 A1 US 20050212278A1 US 8624305 A US8624305 A US 8624305A US 2005212278 A1 US2005212278 A1 US 2005212278A1
Authority
US
United States
Prior art keywords
spar
swivelable
roll bar
joint
lock
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.)
Abandoned
Application number
US11/086,243
Other languages
English (en)
Inventor
Hans-Werner Kurten
Karl-Hermann Motz
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.)
Bomag GmbH and Co OHG
Original Assignee
Individual
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 Individual filed Critical Individual
Assigned to BOMAG GMBH reassignment BOMAG GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KURTEN, HANS-WERNER, MOTZ, KARL-HERMANN
Publication of US20050212278A1 publication Critical patent/US20050212278A1/en
Priority to US12/188,559 priority Critical patent/US7677599B2/en
Priority to US12/708,640 priority patent/US7922201B2/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/10—Arrangements for locking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/13—Roll-over protection
    • B60R2021/132—Roll bars for convertible vehicles
    • B60R2021/134—Roll bars for convertible vehicles movable from a retracted to a protection position
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y10T403/32319—At selected angle including pivot stud
    • Y10T403/32327—At selected angle including pivot stud including radially spaced detent or latch component
    • Y10T403/32336—Engaging notch or recess in outer periphery of component

Definitions

  • the invention relates to a swiveling roll bar for vehicles, especially for construction vehicles, with two vertical carriers, each one of which has one pair of spars, which are connected with each other through swivelable link joints. Further, the link joints have both a lock as well as a stop, which limit the swivel area of the roll bar.
  • Rollover protective fixtures and roll bars which are fixed on the vehicle frame and extend upwards, to protect the operator in case of a overturning of the vehicle.
  • the roll bar is normally integrated in the driver's cabin.
  • the roll bar is normally built separately, whereby the roll bar is normally built as a U-shaped bar, whose free ends are fixed on the vehicle frame and whose cross members are essentially arranged above the head of the operator. Due to this, the roll bar is frequently that part of the vehicle that stretches farthest upwards.
  • Such an upward jutting roll bar can be disadvantageous, for example, during transport of the vehicle or during its operation.
  • roll bars equipped with folding mechanisms which allow swinging away of the upper portion of the roll bar so as to reduce the height of the work vehicle.
  • these folding mechanisms have locks, with which the upper segment of the roll bar is arrested in a up-swung state against the lower stationary segment of the roll bar.
  • Swiveling roll bars are known, in which the upper swiveling segment is connected with the lower, stationary segment by means of two bolts.
  • one bolt works as a hinge, which is built stationary between both the segments. The other bolt can be removed and thus allows swiveling away of the upper segment.
  • the locking bolt is parallel to the swivel axis of the hinge.
  • the underlying task posed by invention is therefore to prepare a swiveling roll bar, especially for construction vehicles, which exhibits an simple built, whose link joints have high stiffness, and thus can absorb massive forces, and whose upper, swiveling segment can lock against the lower, solid segment without play.
  • the stop of the link joint consists of a link joint stiffener, which on its part consists of an extension of one spar of the spar pair and one end of the spar grasps the other spar of the spar pair partly.
  • the lock has a continuously adjustable final control element, with which the joint stiffener can be braced against the other spar.
  • the lock is so arranged that its line of action lies in the swivel plane of the spar.
  • the final control element essentially acts diagonally to the swivel axis and is not parallel to swivel axis as in the hitherto known embodiments, so that greater tension is generated when locking, which increases the stiffness of the link joint.
  • the joint stiffener is constructed as a U-shaped receiver, so that a strong gripping of the other spar is ensured.
  • the U-shaped receiver is designed as a tubular segment, which is open on one side in the longitudinal direction.
  • the joint stiffener can be produced from a separate work piece that is fixed on one spar. This has the advantage that both the standard spars as well as the standard tube segments can be used, which further simplifies the manufacture and assembly of the device.
  • the U-shaped receiver exhibits a stationary connection with a spar.
  • the connection is produced by welding. This stationary type of connection increases the receiving capacity of the link joint of the bending moments.
  • the link joint comprises a hinge, whereby a movable part of the hinge is built with a joint stiffener and the other part of the hinge is built as a hinge bearing, which is fixed on the other spar.
  • one spar is arranged with a recess between the hinge and thus also from the swivel axis of the link joint, due to which the upper segment of the roll bar can be swiveled away over the vertex. Due to the slightly forward inclined position of the upper segment of the roll bar resulting from this, the area over which the operator is protected in case of an overturn is increased.
  • the joint stiffener completely grips three sides of the other spar. This three-sided grip further increases the stiffness of the link joint.
  • the joint stiffener is so arranged that its open side corresponds to the side of the link joint nearest to the hinge.
  • the final control element is constructed as a clamping screw.
  • the lock comprises a clamping bolt, which is arranged between the joint stiffener and the screw head and exhibits an opening, through which the threading of the clamping screw is arranged.
  • the joint stiffener exhibits a recess in the area of the clamping bolt.
  • the recess is designed in such a fashion that the clamping bolt of the clamping screw presses against the boundary of the recess. If the clamping screw is loosened, the clamping bolt can be brought into a position, in which it overlaps the recess, so that the joint stiffener is released.
  • the tension resulting from the planar support of the clamping bolt can be distributed better on the joint stiffener and on the other hand the clamping screw and the clamping bolt remain firmly connected with the link joint when loosened, so that they cannot be lost.
  • the clamping screw is constructed as a tommy screw, so that no tool is required to tighten the joint stiffener against the other spar.
  • the lock is constructed as an eccentric clamp.
  • This embodiment is relatively simple to handle and requires lesser effort for tightening the joint stiffener against the other spar. Further, the eccentric clamp is fastened on the other spar, so that this locking device is not lost in released state.
  • the lock has a two-armed swivel bolt, whereby the final control element of the lock is arranged on one arm.
  • the final control element is preferably built as a clamping screw or a stop bolt.
  • the swivel bolt is thereby so arranged that the arm without the final control element, in case the upper segment of the roll bar is swung high completely, can be swiveled over and away from the joint stiffener. In that state, the final control element is above the other spar. Therefore, due to the fastening of the swivel bolt on the other spar, it cannot be lost even in released state.
  • the joint connection is constructed with elastic bearing support.
  • the elastic bearing element is preferably arranged between the hinge axis and the other spar.
  • the joint stiffener presses against the end of the other spar, due to which the elastic bearing element is pressed together and pre-stress is generated. This pre-stress leads to further improvement in the stiffness of the link joint.
  • FIG. 1 A side view of a roller without driver's cabin, with a swiveling roll bar both in the arrested and in the swiveled down state;
  • FIG. 2 A side view of a swiveling roll bar with swivel bar lock in the locked state
  • FIG. 3 A side view of the swiveling roll bar with swivel bar lock in FIG. 2 in down swung state;
  • FIG. 4 A perspective view of a link joint of a swiveling roll bar with eye bolt/clamp bolt lock in locked state
  • FIG. 5 A perspective view of a link joint of a roll bar with swivel bolt lock in locked state
  • FIG. 6 A side view of a link joint of a swiveling roll bar, with an eccentric clamp as the lock, in locked state;
  • FIG. 7 A cross section through a link joint of a swiveling roll bar with elastic bearing and an eccentric clamp as lock.
  • FIG. 1 shows the side view of a cylinder 10 with a swiveling roll bar 11 , which has a stationary spar 12 and a swiveling spar 13 .
  • the roll bar 11 is displayed not only in the locked but also in the down-swung state.
  • the stationary spar 12 is fixed with the cylinder frame of the cylinder 10 by means of bolt connections 14 .
  • a link joint 15 is attached at the end the swivelable spar 13 .
  • the joint stiffener 15 consists, in the shown example, of a U-shaped tubular segment, whereby the U-shaped tubular segment 15 is so arranged that its open side corresponds to that side of the roll bar 11 , on which the hinge 16 is attached.
  • the U-shaped tubular segment 15 is welded with the swivelable spar 13 and is connected with the hinge 16 , so that the U-shaped tubular segment 15 , together with the welded, upper, swivelable hinge 13 , can swivel about the hinge 16 .
  • the hinge 16 is welded with the stationary spar 12 .
  • the lock 17 In the up-swung state of the swivel able hinge 13 , due to the lock 17 , the U-shaped tubular segment 15 braces against the stationary hinge 12 .
  • the lock 17 is so arranged, that it acts in the swivel plane of the roll bar 11 , due to which the bracing of the U-shaped tubular segment 15 with the stationary spar 12 is increased.
  • the lock is built with a tommy screw 18 and a clamping bolt 19 .
  • the tommy screw 18 enables easy handling during the locking and releasing of the swivelable spar 13 .
  • FIG. 2 shows the side view of a swivelable roll bar 11 in locked state.
  • the lock 17 consists of a tommy screw 18 , which is fastened to a swivel bar 20 .
  • the swivel bar 20 is swivelable about a strap hinge 21 , which on its part is firmly fastened to a stationary hinge 12 .
  • the swivel bar is thereby so arranged that it can swivel about the lower end of the U-shaped tubular segment 15 .
  • the swivel bar 20 swivels about the lower end of the U-shaped tubular segment 15 , it can be braced against the stationary spar 12 by tightening the tommy screw 18 , with which the roll bar 11 is locked.
  • FIG. 3 a side view of the roll bar of FIG. 2 is shown, whereby the lock 17 is released and the swivelable hinge 13 is swung down.
  • FIG. 4 a perspective view of a section of a swivelable roll bar 11 in locked state is shown.
  • the lock 17 consists of a clamping bolt 19 and an eye bolt 23 .
  • the U-shaped tubular segment 15 shows a recess 22 , which is at the lower end of the U-shaped tubular segment in the region of the lock 17 .
  • Both the clamping bolt 19 as well as the recess 22 have rectangular shape. Their dimensions match each other in such a fashion that in crosswise position, the clamping bolt has contact with the U-shaped tubular segment 15 and the latter braces against the stationary hinge 12 on tightening the eye bolt 23 .
  • the clamping bolt 19 can be swung by about 90°, so that it can then match the recess 22 , and the U-shaped tubular segment 15 , together with the swivelable hinge 13 , can be released.
  • FIG. 5 a perspective view of a part of a swivelable roll bar 11 in locked state is shown.
  • the lock 17 consists of a two-arm swivel bar 24 , which has, on one arm, clamping screw/stop bolts built as a clamping screw grip 25 .
  • the swivel bar 24 is connected with the stationary hinge 12 through the bolt 26 , built almost at the center. Thereby the bolt connection 26 is so constructed that the swivel bar 24 can be rotated about the bolt.
  • the free arm of the swivel bar 24 is turned about the lower end of the U-shaped tubular segment 15 , so that the other arm, on which the clamping screw grip 25 is attached, is above the stationary hinge 12 .
  • the clamping screw grip 25 By tightening the clamping screw grip 25 , the free arm of the swivel bar 24 , is pressed against the U-shaped tubular segment 15 , due to which it braces against the stationary hinge 12 .
  • FIG. 6 the side view of a part section of a swivelable roll bar 11 in locked state is shown.
  • the lock 17 consists of an eccentric clamp 27 , which is attached to the hinge 12 .
  • the eccentric clamp 27 has a handle 28 , which is connected with an eccentric clamping element 29 . Further, the eccentric clamp 27 can swivel about the swivel hinge 30 , above which it is fastened at the lower spar 12 .
  • the eccentric clamp 27 is swiveled about the lower part of the U-shaped tubular segment 15 and the grip 28 is folded up, till it touches the U-shaped tubular segment 15 .
  • the eccentric clamping element 29 is pressed against the lower part of the U-shaped tubular segment 15 , so that it is braced against the lower hinge 12 .
  • the handle 28 is folded down, due to which the eccentric clamping element 29 is released, the eccentric clamp 27 swings down and the U-shaped tubular segment 15 , together with the swivelable spar 13 , is released.
  • FIG. 7 a cross section in the region of the link joint of a swivelable roll bar 11 in locked state is shown.
  • the lock 17 is constructed as an eccentric clamp 27 .
  • the embodiment according to the invention shown in FIG. 7 has a buffer 31 made from an elastic material, which is arranged between the hinge 16 and the stationary spar 12 .
  • the buffer 31 made from an elastic material is embodied as an elastic cuff, which is put through the hinge 16 .
  • the U-shaped tubular segment 15 is pressed against the stationary spar 12 .
  • a wedge-like action takes place, due to which the buffer 31 is pressed together and the hinge 16 is pre-stressed.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Turning (AREA)
  • Replacement Of Web Rolls (AREA)
US11/086,243 2004-03-24 2005-03-23 Swiveling roll bar Abandoned US20050212278A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/188,559 US7677599B2 (en) 2004-03-24 2008-08-08 Swiveling roll bar
US12/708,640 US7922201B2 (en) 2004-03-24 2010-02-19 Swiveling roll bar

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004014475A DE102004014475A1 (de) 2004-03-24 2004-03-24 Schwenkbarer Überrollbügel
DE102004014475.3 2004-03-24

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US12/188,559 Continuation US7677599B2 (en) 2004-03-24 2008-08-08 Swiveling roll bar

Publications (1)

Publication Number Publication Date
US20050212278A1 true US20050212278A1 (en) 2005-09-29

Family

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Family Applications (3)

Application Number Title Priority Date Filing Date
US11/086,243 Abandoned US20050212278A1 (en) 2004-03-24 2005-03-23 Swiveling roll bar
US12/188,559 Active US7677599B2 (en) 2004-03-24 2008-08-08 Swiveling roll bar
US12/708,640 Active US7922201B2 (en) 2004-03-24 2010-02-19 Swiveling roll bar

Family Applications After (2)

Application Number Title Priority Date Filing Date
US12/188,559 Active US7677599B2 (en) 2004-03-24 2008-08-08 Swiveling roll bar
US12/708,640 Active US7922201B2 (en) 2004-03-24 2010-02-19 Swiveling roll bar

Country Status (7)

Country Link
US (3) US20050212278A1 (de)
EP (1) EP1580082B1 (de)
JP (1) JP4959949B2 (de)
CN (1) CN100391762C (de)
AT (1) ATE412558T1 (de)
DE (2) DE102004014475A1 (de)
ES (1) ES2315752T3 (de)

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US20050224269A1 (en) * 2004-04-07 2005-10-13 Deere & Company, A Delaware Corporation Vehicle operator's platform
US20070090636A1 (en) * 2005-10-26 2007-04-26 Becker Steven R Vibration dampening systems for overhead frame structures
US20070252371A1 (en) * 2006-05-01 2007-11-01 Schlup Kenneth G Jr Folding Roll-Over Protective Structure
US20080217897A1 (en) * 2007-03-05 2008-09-11 Automotive Group Ise Innomotive Systems Europe Gmbh Roll-over protective system for motor vehicles with a collapsible roll bar
CN102211562A (zh) * 2010-04-09 2011-10-12 宝马格有限公司 能够枢转的翻车保护杆
US8424911B2 (en) * 2011-08-26 2013-04-23 Deere & Company Folding rollover protection system with vibration dampeners
US8528924B1 (en) 2009-11-12 2013-09-10 Excel Industries, Inc. Rollover protection system
US8905434B1 (en) 2009-11-12 2014-12-09 Excel Industries, Inc. Rollover protection apparatus
US20160009238A1 (en) * 2014-07-11 2016-01-14 Full Vision, Inc. Forwardly and rearwardly folding roll-over protection structure
US20160052560A1 (en) * 2014-08-22 2016-02-25 Mary Peterson Protection system for atv
US9616837B1 (en) 2014-06-03 2017-04-11 Excel Industries, Inc. Forward folding roll bar assembly
US10377333B2 (en) 2009-11-12 2019-08-13 Excel Industries, Inc. Deployable operator protection apparatus with an over-center linkage
US10493939B2 (en) 2015-02-13 2019-12-03 Excel Industries, Inc. Lever-actuated operator protection apparatus
US10562479B2 (en) 2015-02-13 2020-02-18 Excel Industries, Inc. Operator protection apparatus with an over-center linkage
US11198408B2 (en) 2009-11-12 2021-12-14 Excel Industries, Inc. Control system for a terrain working vehicle having an operator protection apparatus
US11724658B2 (en) 2009-11-12 2023-08-15 Excel Industries, Inc. Control system for a terrain working vehicle having an operator protection apparatus

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WO2008115461A2 (en) 2007-03-16 2008-09-25 Polaris Industries Inc. Vehicle
WO2013129941A1 (en) 2012-02-28 2013-09-06 Ag-Tech Industries Limited A flexible impact protection
US8998253B2 (en) * 2012-03-30 2015-04-07 Polaris Industries Inc. Folding cab frame
US9440671B2 (en) 2012-09-20 2016-09-13 Polaris Industries Inc. Vehicle
US9592782B2 (en) 2012-09-20 2017-03-14 Polaris Industries Inc. Vehicle
WO2014047488A1 (en) 2012-09-20 2014-03-27 Polaris Industries Inc. Utiliy vehicle
DE102012112538A1 (de) * 2012-12-18 2014-06-18 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Anordnung für ein Kraftfahrzeug
DE102013005832A1 (de) 2013-04-04 2014-10-09 Bomag Gmbh Kabinenloses Fahrzeug, insbesondere Baufahrzeug, mit Überrollbügel
US9884647B2 (en) 2015-12-10 2018-02-06 Polaris Industries Inc. Utility vehicle
US10328883B2 (en) * 2017-04-03 2019-06-25 Deere & Company Roll over protection system rattle reduction
US10696260B2 (en) 2017-10-30 2020-06-30 Deere & Company Multiple pivot rollover protection structure
US10793181B2 (en) 2018-02-13 2020-10-06 Polaris Industries Inc. All-terrain vehicle
CA3040853A1 (en) 2018-04-21 2019-10-21 David Robertson A roll-over protection apparatus
DE102019135720A1 (de) * 2019-12-23 2021-06-24 Intercom - Dr. Leitner Srl Überrollbügel

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US1990820A (en) * 1933-02-24 1935-02-12 Herman A Flader Clamping tool
US2085612A (en) * 1935-10-22 1937-06-29 Spiess Georg Sheet separating device
US3563401A (en) * 1968-07-29 1971-02-16 Hyster Co Hinged overhead guard for truck
US3976338A (en) * 1973-08-25 1976-08-24 Daimler-Benz Aktiengesellschaft Slide/rubber torsion-bearing support for the absorption of axial and radial forces
US4403799A (en) * 1980-08-06 1983-09-13 Meacham Marine Products, Inc. Flush hasp having foldable, upstanding latching portion, and optionally usable with padlock
US4949991A (en) * 1988-08-03 1990-08-21 Deere & Company Rollover protection system for vehicles
US5503430A (en) * 1993-12-28 1996-04-02 Kubota Corporation Rollover protection system for a working vehicle
US5440948A (en) * 1994-02-17 1995-08-15 Hsieh Chan Bicycle Co., Ltd. Locking hinge for a folding bicycle
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Cited By (27)

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ATE412558T1 (de) 2008-11-15
ES2315752T3 (es) 2009-04-01
CN100391762C (zh) 2008-06-04
US20100140911A1 (en) 2010-06-10
US7922201B2 (en) 2011-04-12
CN1672984A (zh) 2005-09-28
EP1580082A1 (de) 2005-09-28
JP4959949B2 (ja) 2012-06-27
DE102004014475A1 (de) 2005-10-13
US7677599B2 (en) 2010-03-16
US20080309058A1 (en) 2008-12-18
DE502005005772D1 (de) 2008-12-11
JP2005289360A (ja) 2005-10-20
EP1580082B1 (de) 2008-10-29

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