WO2008034443A2 - Systeme de transport comprenant une unite de remorquage - Google Patents

Systeme de transport comprenant une unite de remorquage Download PDF

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Publication number
WO2008034443A2
WO2008034443A2 PCT/DK2007/000410 DK2007000410W WO2008034443A2 WO 2008034443 A2 WO2008034443 A2 WO 2008034443A2 DK 2007000410 W DK2007000410 W DK 2007000410W WO 2008034443 A2 WO2008034443 A2 WO 2008034443A2
Authority
WO
WIPO (PCT)
Prior art keywords
unit
towage
transport
coupling
units
Prior art date
Application number
PCT/DK2007/000410
Other languages
English (en)
Other versions
WO2008034443A3 (fr
Inventor
Knud Raun
Original Assignee
U-B-Let A/S
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 U-B-Let A/S filed Critical U-B-Let A/S
Publication of WO2008034443A2 publication Critical patent/WO2008034443A2/fr
Publication of WO2008034443A3 publication Critical patent/WO2008034443A3/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
    • B62B3/10—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by supports specially adapted to objects of definite shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
    • B62B2202/90—Vehicles

Definitions

  • the present invention concerns a towage unit with motor for use in connection with transporting units with one or more freely movable wheels, where these units are coupled to the towage unit via a coupling system, and where the towage unit has at least one drive wheel, and a transport system including such a towage unit.
  • the invention concerns a towage unit.
  • This towage unit has a frame, where the frame extends at least a length along one side and at least a length along at least one end of the unit to be transported. In this way there may be ensured a good and firm grip on the unit to be transported while at the same time achieving a sturdy frame for the towage unit itself.
  • wheels are fitted at or in the proximity of the ends of the towing unit, where at least one wheel at each end of the towage unit is adapted for control and is connected with a central control handle that may be adjustable in height, and where the handles may also be designed so that they may be adjusted according to the wish of the operator.
  • control means are connected so that when a rear guiding wheel is turned to the right, a front guiding wheel is turned to the left.
  • This type of control is known normally as 4- wheel steering, but in connection with the invention it is used as controlling one or more guide wheels at the front and of one or more guide wheels at the rear, and it may thus only comprise two wheels in this connection. Further wheels may, however, be fitted both at the front and at the rear in order to achieve a stable design.
  • These non- guiding wheels may advantageously be freely movable swivelling wheels.
  • a towage unit has set of drive wheels at both ends, where each set of wheels includes a differential gear.
  • These sets of drive wheels may be driven by a common motor via power transmitting transmission mechanism, but is preferred made with each their motor which is more or less directly connected with the wheel set via the differential gear.
  • This design is simple, and appreciable maintenance of a regular drive train is not required.
  • each differential gear ensures that there is always an optimal power distribution to the driving wheel set.
  • a further advantage of using a differential gear is that the control becomes easier, as the power distribution between the wheels in the wheel set is regulated by turning.
  • a towage unit according to the invention may be adapted to move units that are different in structure, where this device includes a coupling system which is particularly adapted to be coupled together with differently structured units.
  • the towage unit may be coupled together with many different other units, hi principle, the only requirement is that the units to be transported are provided with corresponding coupling means. It is thus possible to have one single type of towage units in e.g. a hospital, as this one type may be used for all the transports taking place on the hospital. Right from moving beds with patients, food trolleys, and so on.
  • the coupling between towage unit and the unit to be transported may be adapted in many different ways and can be made according to the wish of the customer.
  • the towage unit may e.g. be adapted with a coupling system which may be operated from the control handle, where the coupling is e.g. electromagnetic, a snap-action coupling, a hook coupling, a ball coupling, a drawbolt/draweye coupling, or similar.
  • the coupling is e.g. electromagnetic, a snap-action coupling, a hook coupling, a ball coupling, a drawbolt/draweye coupling, or similar.
  • AU these types of couplings can also be made so that they may be operated directly at the coupling point.
  • Other types of coupling systems than those mentioned here may be applied too.
  • a variant of a towage unit is adapted so that an operator may freely choose if he/she will walk' at the end of the towage unit or drive with it standing on a plate arranged for the purpose. This provides the operator with freedom to choose to walk or to be driven. Furthermore, in a situation where the space is limited, this provides the possibility of folding up the plate in order thereby to attain a slightly smaller towage unit.
  • This plate may be arranged so that it partly rests on parts of the towage unit and thereby may absorb the load from a standing operator, but it may also be provided with supporting swivelling wheels or another suitable type of wheels.
  • a preferred embodiment of a towage unit according to the invention has a length substantially corresponding to the units that are to be transported, hi this way is achieved the advantage that steering at both end occurs in immediate proximity of the ends of the transported unit, providing an easier and more safe driving.
  • the towage unit is preferably coupled with the unit to be transported in that the towing unit is parked and the unit is moved to engage the coupling system.
  • An embodiment of a towage unit is that it is made with a longitudinal frame part and with a transverse frame part at both ends of the towage unit so that it forms a U-shape.
  • the control handle may be placed at one transverse frame part, and there may be a controllable and driving set of wheels and a support wheel of the swivelling wheel type. These wheels will typically be disposed in proximity of each their end of the transverse frame part, whereby the towage unit achieves good stability.
  • At the other transverse frame part there may also be a controllable and driving set of wheels.
  • This set of wheels may be placed at a point corresponding to the middle of a towage unit which is coupled with a unit for transport, but may also be disposed at one side and be supplemented by a support wheel as at the other end.
  • Control connections for the guide wheels extend from the control handle and to the guiding wheels. These control connections, or parts thereof, may advantageously be placed inside the frame parts or partly inside the frame parts.
  • the part of the control connections extending along the towage unit may e.g. be built into the longitudinal frame part. It may be solid control rods, but it may also be a control wire design or an electric, pneumatic or hydraulic control.
  • a variant of a towage unit where the frame forms an L-shape is also possible.
  • the foremost guiding and driving set of wheels are disposed at the end of the longitudinal frame part.
  • the frame design there is achieved great rigidity and a secure control of the unit to be transported.
  • a towage unit according to the invention can be made with frame parts that are adjustable in length, either steplessly or in predetermined steps.
  • This possibility of varying the frame parts may be used on the longitudinal frame part and on transverse frame parts as well.
  • the invention furthermore concerns a transport system that includes at least one towage unit and at least one, preferably several transport units, where the towage unit and the transport unit are provided with a corresponding coupling system, where the coupling system is adapted so that individual movement of the towage unit and the transport unit due to unevenesses in the ground is allowed.
  • a particularly preferred variant of the invention concerns a transport system which is constituted by a towage unit, and where the transport unit is a hospital bed, a linen trolley, a food trolley, a mail cart or another kind of transport vehicle. Every day there are many movements and transports of beds and trolleys within the health care and eldercare systems. By a transport system according to the invention, many of these movements and transports may be performed without any appreciable load on the staff performing these tasks.
  • FIG. 1 shows an example of a transport system according to the invention.
  • Fig. 1 appears a transport system 1 consisting of a towage unit 2 and a transport unit 3.
  • the towage unit 2 consists of a longitudinal frame part 4, a first transverse frame part 5 upon which is mounted a control handle 6 with not shown operating means.
  • a platform 7 where the operator may stand while driving.
  • This platform 7 may be adapted so that it may be folded up or shoved in under the frame part 5 so that the operator can walk at the end of the towage unit 2 instead.
  • the platform 7 is here shown with a support wheel 8 which is a swivelling wheel.
  • At the other end of the towage unit there is another transverse frame part 9 which in the shown variant of a towage unit is made shorter than the first transverse frame part 5.
  • This swivelling wheel 12 is in principle a wheel that may rotate freely about a vertical as well as a horizontal axis. The only purpose of this swivelling wheel 12 is to act as support wheel for the towage unit 2. In the shown variant of the invention there is no need for a corresponding swivelling wheel 12 at the second transverse frame part 9, but such a variant may of course be made.
  • the two sets of wheels 10, 11 that are mounted at each their transverse frame part 5, 9, are both controllable and fitted with each their motor, which via a differential gear drives the wheel set 10, 11.
  • the control connections are not shown on Fig. 1, but may be more or less partially integrated in the frame parts 4, 5, 9 and connected in a secure and stable way to the control handle 6.
  • a simple coupling part 13 which may be coupled together with a corresponding coupling part 14 at the end of the transport unit 13.
  • this coupling is effected with a draw bolt 15.
  • the coupling 13, 14, 15 is made so that the towage unit 2 and the transport unit 3 are kept coupled in such a secure way that a mainly fixed connection is produced between the two units 2, 3.
  • the coupling 13, 14, 15 can be designed in many other variants that are more or less advanced and automatic, but the main thing is that the coupling is secure and fixed, and that the necessary movements between the two units 2, 3 occurring during use are allowed anyway.
  • the corresponding coupling part 14 may be mounted so that a certain movement between the coupling part 14 and the transport unit 3 are allowed.
  • the transport unit 3 is shown here as a closed trolley fitted with four swivelling wheels 16 and with the said corresponding coupling part 14.
  • This unit 3 may, as mentioned previously, be a hospital bed, a food trolley, a linen trolley, or similar.
  • the coupling between the towage unit 2 and the transport unit 3 is provided by parking the towage unit 2 and the transport unit 3 is pushed in between the frame parts 5 and 6.
  • the coupling parts 13, 14, 15 hereby come into mutual contact and coupling may take place.
  • the towage unit 2 is coupled together with the transport unit 3, the two units 2 and 3 will be so securely connected that easy and safe controlling may be effected.
  • the frame parts 4, 5, 9 may be designed so that the length of respective frame parts 4, 5, 9 may be varied steplessly or possibly in steps within the given minimum and maximum lengths.
  • the towage unit 2 may readily be adapted to various types of transport units 3, if deemed suitable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)

Abstract

L'invention concerne un système de transport (1) comprenant une unité de remorquage (2) à moteur destinée à être utilisée avec des unités de transport (3) pourvues d'au moins une roue libre (16), l'unité de remorquage (2) comprenant au moins une roue motrice (10) et un système d'attelage (13, 14, 15) conçu de sorte que le mouvement individuel de l'unité de remorquage (2) et de l'unité de transport (3) entraîné par les irrégularités du sol soit permis. Dans un aspect particulièrement préféré, l'invention concerne un système de transport (1) comprenant une unité de remorquage (2), l'unité de transport (3) étant un lit d'hôpital, un chariot à linge, un chariot de distribution de repas, un chariot postal ou autres types de véhicules de transport.
PCT/DK2007/000410 2006-09-19 2007-09-19 Systeme de transport comprenant une unite de remorquage WO2008034443A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DKPA200601209 2006-09-19
DKPA200601209 2006-09-19

Publications (2)

Publication Number Publication Date
WO2008034443A2 true WO2008034443A2 (fr) 2008-03-27
WO2008034443A3 WO2008034443A3 (fr) 2008-12-24

Family

ID=39135300

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2007/000410 WO2008034443A2 (fr) 2006-09-19 2007-09-19 Systeme de transport comprenant une unite de remorquage

Country Status (1)

Country Link
WO (1) WO2008034443A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008034938A1 (de) * 2008-07-26 2010-02-04 Hupfer Metallwerke Gmbh & Co. Kg Zentriervorrichtung für einen Transportgeräte-Einschub
FR2955290A1 (fr) * 2010-01-19 2011-07-22 Ecomover Dispositif d'attelage d'un conteneur roulant

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648869A (en) * 1969-11-24 1972-03-14 American Sterilizer Co Transfer carriage
US5346354A (en) * 1988-05-30 1994-09-13 Hellstroem Nils Erik Carriage for transferring objects
EP1352815A1 (fr) * 2002-04-11 2003-10-15 Fideves S.A. à conseil d'administration Remorque pour train de convoyage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3648869A (en) * 1969-11-24 1972-03-14 American Sterilizer Co Transfer carriage
US5346354A (en) * 1988-05-30 1994-09-13 Hellstroem Nils Erik Carriage for transferring objects
EP1352815A1 (fr) * 2002-04-11 2003-10-15 Fideves S.A. à conseil d'administration Remorque pour train de convoyage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008034938A1 (de) * 2008-07-26 2010-02-04 Hupfer Metallwerke Gmbh & Co. Kg Zentriervorrichtung für einen Transportgeräte-Einschub
FR2955290A1 (fr) * 2010-01-19 2011-07-22 Ecomover Dispositif d'attelage d'un conteneur roulant

Also Published As

Publication number Publication date
WO2008034443A3 (fr) 2008-12-24

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