EP1038801A1 - Behälterstützbein - Google Patents

Behälterstützbein Download PDF

Info

Publication number
EP1038801A1
EP1038801A1 EP00660057A EP00660057A EP1038801A1 EP 1038801 A1 EP1038801 A1 EP 1038801A1 EP 00660057 A EP00660057 A EP 00660057A EP 00660057 A EP00660057 A EP 00660057A EP 1038801 A1 EP1038801 A1 EP 1038801A1
Authority
EP
European Patent Office
Prior art keywords
support leg
chassis
construction
tightening
rotatable part
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
EP00660057A
Other languages
English (en)
French (fr)
Other versions
EP1038801B1 (de
Inventor
Tommy Nickull
Göran Eklund
Jussi Aystö
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.)
Narko Oy AB
Original Assignee
Narko Oy AB
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 Narko Oy AB filed Critical Narko Oy AB
Publication of EP1038801A1 publication Critical patent/EP1038801A1/de
Application granted granted Critical
Publication of EP1038801B1 publication Critical patent/EP1038801B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D90/00—Component parts, details or accessories for large containers
    • B65D90/12—Supports
    • B65D90/14—Legs, e.g. detachable
    • B65D90/143—Detachable individual legs

Definitions

  • the invention relates to a support leg construction for a container and a corresponding covering structure being supported by a chassis, the support leg construction including a support leg comprising a rotatable part and a turnable part at an angle to the rotatable part, the support leg being turnable by means of a bearing structure from a first, mainly horizontal, rest position in which it is retracted to the chassis to a second, mainly vertical, pulled out parking position in relation to the chassis for supporting the chassis, whereby the support leg and the chassis comprise supporting surfaces placed against each other and arranged to be pressed against each other when the support leg is in the pulled out position, and locking devices for keeping the support leg locked to the chassis when the support leg is in the pulled out position, the locking devices comprising two co-operating locking means.
  • Support leg constructions are needed in the cabins of towing vehicles and in trailers, when the towing vehicle is detached from the trailer.
  • the support legs When the towing vehicle is detached from the trailer the support legs are turned from a horizontal rest position, where the legs are meant to be when the trailer is moving, to a vertical parking position against the ground for supporting the trailer substantially horizontally.
  • Turning the support legs into different operating positions, i.e. from a rest position to a parking position and vice versa requires a great deal of muscular strength, as the support leg constructions are heavy.
  • to turn the support legs from a rest position to a parking position involves high risks due to the heavy weight and may cause injuries when the heavy steel parts hit a person's feet.
  • a known support leg construction for trailers comprises a massive triangle-support-hook construction that swings freely as a pendulum when it drops from a rest position to a parking position, and may thus cause leg injuries. Fingers are also at risk in this prior art solution, as scissors-shaped cutting parts may be created between the support leg and the hook when the hook swings freely.
  • Another problem with this prior art support leg construction is that the support leg does not support the chassis adequately, and the system has a lot of looseness and the construction swings.
  • Another significant problem with this prior art leg construction is that the hook thereof is inappropriately placed regarding the wheel of the towing vehicle (cf. attached Figure 1). The space between the legs is limited, thus making it difficult to drive the towing vehicle beneath the chassis.
  • US patent 3112836 discloses a support leg construction according to the preamble in the attached claim 1.
  • the problem with this prior art solution is that the co-operating locking means have to be produced practically free from tolerance, so that the covering structure supported by the support leg construction cannot swing back and forth.
  • the locking means are practically free from tolerance, dirt and rust etc. therein prevent the locking means from functioning. Dirt may be carried into the locking means in the open position.
  • the locking means comprise self-tightening wedge-shaped tightening surfaces arranged to be tightened against each other more strongly as the mass placed upon the chassis increases, i.e. the greater the mass is, whereby the first tightening surface of the tightening surfaces is formed on a first rotatable part and the second tightening surface of the tightening surfaces is formed on a reception part arranged to the chassis so as to receive a container or a corresponding load placed upon the chassis when the support leg is in the parking position.
  • These tightening surfaces can be defined as gripping surfaces as well.
  • the first tightening surface is preferably formed on a wedge-shaped cam part of the rotatable part, whereby the reception part comprises a recess substantially corresponding to the form of the cam part for receiving the cam part.
  • the support leg construction preferably includes a pin-hole type of locking device that enables the support leg to be easily locked into two operating positions.
  • the invention is based on the idea to lock the support leg without a massive support hook, and to utilize instead light support means that comprise self-tightening surfaces. By arranging these surfaces close to the rotation axis of the rotatable part the support leg can easily be turned as no torque impeding turning exists.
  • the support leg construction of the invention provides the most significant advantages provided by the support leg construction of the invention.
  • the support leg supports the chassis firmly in such a manner that it does not move back and forth, and the support leg construction is safer to use than prior art constructions, it may be rapidly mounted into different operating positions and it allows to easily drive a towing vehicle or a trailer beneath the chassis.
  • the wedge-shaped tightening surfaces function as guiding surfaces so as to lock the locking means tightly to one another.
  • Figure 1 shows a prior art support leg construction including a support leg 1' comprising a rotatable part 2' and a turnable part 3' attached thereto at a straight angle.
  • the rotatable part 2' is pivotally mounted into a chassis 4'.
  • Bushings 20' surrounding the rotatable part 2' form the bearing.
  • the support leg construction includes a turnable support hook 5', which is attached to the chassis 4' from one end while the other end is pivotally mounted to the turnable part 3' of the support leg.
  • the support hook 5' narrows, as is understood from Figure 1, the distance between the support legs 1' close to the rotatable part 2', thus significantly impeding a towing vehicle to be driven between the support legs.
  • the massive support hook 5' is very hard to turn which creates a further problem.
  • the support hook 5' does not support the support leg to the chassis 4' firmly and without tolerance.
  • FIG. 2 shows a support leg construction of the invention.
  • support legs indicated with reference numeral 1 comprise a rotatable pad 2 and a turnable part 3.
  • the rotatable part 2 is mounted to the chassis 4 with bush-like bearings 20.
  • This solution does not include a support hook (5') in contrast to the solution shown in Figure 1.
  • the structure is therefore lighter than the structure shown in Figure 1, and there is no need to turn a massive support hook (using muscle strength).
  • the "effective distance" between the support legs 1 at the edges of the chassis 4 equals the distance between the support legs close to the ground.
  • FIGs 3 and 4 describe how the support leg 1 is locked to the chassis 4.
  • FIG 3 where the support leg 1 is in the retracted rest position supported by a holder 13 indicated by dashed lines, shows that the rotatable part 2 of the support leg comprises an upwards tapering wedge-shaped cam part 6 which is pushed into a recess 8, corresponding in shape with the cam part, in a reception or form locking part 7.
  • the reception part 7 is built into the chassis 4 in such a manner that it receives a load placed upon the chassis, for example the load provided by a container 17, a surface 6a of the cam part which can be referred to as a tightening surface is wedged against the recess 8 of the reception part 7 forming a tightening surface 8a corresponding to the tightening surface 6a of the cam part.
  • the form locking part 7 is formed as a fixed part of the chassis.
  • the reception part can be referred to as the form locking part.
  • the reception part 7 may comprise a recess which is differently shaped than the cam 6. Accordingly the reception part 7 may comprise, for example, a recess shaped as a gap or a jaw for receiving the cam.
  • the main point is that the reception part 7 receives in a tightening manner, when loaded, the cam or another wedge-shaped part of the rotatable part 2.
  • the tightening surfaces 6a, 8a may also be referred to as guiding surfaces, as they guide the cam part into the recess 8, even if the support leg 1 is obliquely positioned, i.e. if the turnable part 3 is not in a vertical position.
  • Figure 4 shows that a space 21 is left between the cam of the cam part 6 and the recess 8 of the reception part 7.
  • the space 21 may receive dirt, for example, which is why the cam of the cam part 6 is always capable of being directed sufficiently deep into the recess 8 so that the tightening surfaces 6a, 8a provide said tightening function (wedging and self-tightening).
  • the cam 6 and reception part 7 are to be designed so as to be able to receive also such - sometimes even heavy - loads that tend to turn the support leg 1 when it is in the parking position. Said loads are typically created when a forklift supported on the chassis is in motion and breaks abruptly.
  • the spring 12 urges the pin 10 of the handle 9 into the hole 11; if the pin 10 is to be removed from the hole 11, the handle 9 is pulled against the load of the spring 12.
  • the support leg 1 can be revolved 90 degrees counter-clockwise - assuming that the chassis is supported by a towing vehicle (not shown) - and simultaneously push it inwards towards the chassis 4 to the rest position shown in Figure 3.
  • Figures 2 to 4 illustrate that the distance between the support legs 1 can be relatively long, as no support hook (5') exists and the effective distance between the support legs is, for example, 2840 mm, providing approximately 200 mm more space than the prior art solution in Figure 1 and plenty of space is left for the wheels of a towing vehicle provided with mudguards 18.
  • the rotatable part 2 of the support leg construction, the form locking part 7 and the spring 12 are formed within a cover 15. Thus, said parts remain covered from dirt and from possible impact.
  • the cover 15 comprises a through-hole 16 for the axis of the handle 9.
  • the reception part 7 (and not the rotatable part 2) comprises a wedge-shaped cam, in which case a recess or a groove is formed into the rotatable part 2 for receiving the wedge-shaped cam.
  • the support leg does not have to be, in accordance with Figure 3, in an entirely horizontal position when it is in the rest position, but the position thereof may deviate from the horizontal position, as the expression "mainly horizontal” indicates in claim 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Table Devices Or Equipment (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Handcart (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Pallets (AREA)
  • Finger-Pressure Massage (AREA)
  • Sheet Holders (AREA)
EP00660057A 1999-03-26 2000-03-23 Behälterstützbein Expired - Lifetime EP1038801B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI990677 1999-03-26
FI990677A FI112626B (fi) 1999-03-26 1999-03-26 Tukijalkarakenne konttia ja vastaavaa varten

Publications (2)

Publication Number Publication Date
EP1038801A1 true EP1038801A1 (de) 2000-09-27
EP1038801B1 EP1038801B1 (de) 2002-11-27

Family

ID=8554290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00660057A Expired - Lifetime EP1038801B1 (de) 1999-03-26 2000-03-23 Behälterstützbein

Country Status (5)

Country Link
EP (1) EP1038801B1 (de)
AT (1) ATE228468T1 (de)
DE (1) DE60000840T2 (de)
DK (1) DK1038801T3 (de)
FI (1) FI112626B (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822925A1 (fr) * 2001-03-28 2002-10-04 Gerard Grosse Dispositif d'appui pour caisse amovible reposant sur un plateau, et plateau pourvu d'au moin quatre de ces dispositifs
EP2014581A1 (de) * 2007-07-08 2009-01-14 CMP Container Master Projekt GmbH Stützbein für Container

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112836A (en) 1961-11-30 1963-12-03 Back Samuel Removable cargo box for trucks or trailers
FR1597053A (de) * 1968-01-11 1970-06-22
DE19653695A1 (de) * 1996-12-16 1998-06-18 Mobilbox Gmbh Mechanische Diebstahlsicherung für im Transportbereich eingesetzte Wechselbehältersysteme mit Stützfüßen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3112836A (en) 1961-11-30 1963-12-03 Back Samuel Removable cargo box for trucks or trailers
FR1597053A (de) * 1968-01-11 1970-06-22
DE19653695A1 (de) * 1996-12-16 1998-06-18 Mobilbox Gmbh Mechanische Diebstahlsicherung für im Transportbereich eingesetzte Wechselbehältersysteme mit Stützfüßen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2822925A1 (fr) * 2001-03-28 2002-10-04 Gerard Grosse Dispositif d'appui pour caisse amovible reposant sur un plateau, et plateau pourvu d'au moin quatre de ces dispositifs
EP2014581A1 (de) * 2007-07-08 2009-01-14 CMP Container Master Projekt GmbH Stützbein für Container

Also Published As

Publication number Publication date
FI990677A0 (fi) 1999-03-26
FI990677A7 (fi) 2000-09-27
DE60000840T2 (de) 2003-07-17
EP1038801B1 (de) 2002-11-27
DE60000840D1 (de) 2003-01-09
ATE228468T1 (de) 2002-12-15
FI112626B (fi) 2003-12-31
DK1038801T3 (da) 2003-03-10

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