EP4480887A1 - Dispositif de levage à fixer au plafond ou au mur - Google Patents

Dispositif de levage à fixer au plafond ou au mur Download PDF

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Publication number
EP4480887A1
EP4480887A1 EP24183161.9A EP24183161A EP4480887A1 EP 4480887 A1 EP4480887 A1 EP 4480887A1 EP 24183161 A EP24183161 A EP 24183161A EP 4480887 A1 EP4480887 A1 EP 4480887A1
Authority
EP
European Patent Office
Prior art keywords
roller
sheet
support structure
attached
rotation
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.)
Withdrawn
Application number
EP24183161.9A
Other languages
German (de)
English (en)
Inventor
Fabrizio Bolsieri
Giampiero BOLSIERI
Marco CARSENZUOLA
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.)
Mechatronic Machine & Systems In Forma Abbreviata Mms Srl Srl
Original Assignee
Mechatronic Machine & Systems In Forma Abbreviata Mms Srl Srl
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 Mechatronic Machine & Systems In Forma Abbreviata Mms Srl Srl filed Critical Mechatronic Machine & Systems In Forma Abbreviata Mms Srl Srl
Publication of EP4480887A1 publication Critical patent/EP4480887A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B66C13/06—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for minimising or preventing longitudinal or transverse swinging of loads
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1013—Lifting of patients by
    • A61G7/1015—Cables, chains or cords
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D3/00—Portable or mobile lifting or hauling appliances
    • B66D3/18—Power-operated hoists

Definitions

  • Lifting devices are known which require a supporting structure resting on the floor.
  • such lifting devices suffer from the drawback of taking up space on the floor and therefore needing sufficient free space on the floor for their installation.
  • lifting devices such as winches or hoists that can be mounted on the ceiling or wall.
  • Such lifting devices operate with ropes or chains, thus with essentially one-dimensional traction members. This can lead to problems in the stability of the load during vertical movement.
  • a lifting device thus configured, in particular due to the fact that the traction member is formed by a sheet, i.e. a two-dimensional member, and due to the fact that the coupling means extend substantially over the entire width of the sheet, it is possible to vertically move loads of various kinds, in a stable and safe manner, using a single device or at most two devices operating in combination.
  • a lifting device according to an embodiment of the present invention is generally indicated 10.
  • the lifting device 10 further comprises a support structure 14 on which the roller 12 is supported in a rotatable manner for rotation about an axis of rotation coinciding with the longitudinal axis x.
  • the support structure 14 is advantageously formed by a box-like casing, for example of a parallelepiped shape, within which the roller 12 is accommodated. In this way, the support structure 14 has the function not only of support, but also of protection, for the roller 12.
  • the support structure 14 is provided with attachment means for attachment of the support structure itself to a ceiling or wall of a building so that the axis of rotation of the roller 12 is oriented horizontally.
  • the lifting device 10 further comprises, as a traction member, a sheet 18 which is made, for example, of polyamide or another suitable material to ensure adequate tensile strength.
  • a sheet 18 which is made, for example, of polyamide or another suitable material to ensure adequate tensile strength.
  • the term 'sheet' is to be understood to mean in general a two-dimensional traction member, i.e. a traction member having one of the three dimensions (in this case the thickness) negligible in relation to the other two, unlike a one-dimensional traction member, such as for example a rope, cable or band.
  • the sheet 18 has a width greater than the diameter of roller 12.
  • the sheet 18 is fixed at a first end thereof to the lateral surface 12a of the roller 12 so that it can be wound on, or unwound from, the roller as a result of the rotation of the latter about its axis of rotation.
  • the sheet 18 is provided with coupling means which extend substantially over the whole width of the sheet 18 and are configured to enable a load C to be vertically moved (shown in Figure 2 ) to be coupled to the sheet.
  • such coupling means are formed by an elongated end plate 20 with a length substantially equal to the width of the sheet 18, said plate having a plurality of holes 22, for example arranged equally spaced from each other in the direction of the length of the end plate 20 (i.e. in the direction of the width of the sheet 18).
  • the holes 22 serve to allow insertion of hooks or other suitable coupling members with which to couple the load C to be vertically moved to the end plate 20, and thus to the sheet 18.
  • the roller 12 is advantageously provided with a pair of lateral guide discs 24 (one of which can be seen in Figure 1 ) positioned at the opposite axial ends of the roller.
  • the lifting device 10 further comprises actuating means operatively associated with the roller 12 to control its rotation in one direction or the other about its axis of rotation to cause the winding of the sheet 18 on the roller 12, and thus the upward movement of the end plate 20 (and of the load C coupled thereto), or respectively the unwinding of the sheet 18 from the roller 12, and thus the downward movement of the end plate 20 (and of the load C coupled thereto).
  • actuating means include, for example, a motor 26, in particular an electric motor, which may be directly or indirectly connected to the roller 12 and may be mounted inside or outside the latter.
  • the motor 26 is mounted outside the roller 12, in particular with the axis of rotation of its rotor oriented vertically, and an angle gear reducer 28 is interposed between the motor 26 and the roller 12.
  • the motor may be arranged with the axis of its rotor oriented horizontally, in particular coinciding with the longitudinal axis x of the roller 12.
  • a gear reducer may be provided between the motor and the roller.
  • the aforesaid actuating means also include a special control member, such as a push-button (which may be either physical or virtual), to enable the operator to control the rotation of the motor 26, and thus of the roller 12, in one direction or the other and thus cause the lifting or lowering of the sheet 18, and therefore of the load C.
  • a special control member such as a push-button (which may be either physical or virtual) to enable the operator to control the rotation of the motor 26, and thus of the roller 12, in one direction or the other and thus cause the lifting or lowering of the sheet 18, and therefore of the load C.
  • the lifting device 10 is designed to vertically move loads C of various kinds, in particular loads with masses between 50kg and 1000kg. As shown in Figure 2 , the load C to be moved may be coupled directly to the end plate 20, using the holes 22 provided therein. However, it is possible to interpose one or more traction members between the load C and the end plate 20. Still with reference to Figure 2 , the maximum stroke of the vertical movement of the load C that can be controlled with the lifting device 10 is indicated by D. Said maximum stroke will of course depend on the length of the sheet 18.
  • the load C is moved vertically using only one lifting device 10.
  • two lifting devices 10 are provided for supporting the load C to be vertically moved, which loading platform is coupled with two opposite sides thereof parallel to the end plates 20 attached to the sheets 18 of the two lifting devices 10.
  • the two lifting devices 10 have their motors 26 arranged horizontally, i.e. arranged so that the axes of rotation of the respective rotors are oriented horizontally. More specifically, in the present case the sheets 18 of the two lifting devices 10 face each other, while the motors 26 are arranged on opposite sides of each other.
  • Figure 3 shows the condition in which the loading platform P is lowered
  • Figure 4 shows the condition in which the loading platform P is at the maximum possible height (condition corresponding to the complete winding of the sheets 18 on the respective rollers 12).
  • an appropriate synchronous control of the two motors 26 will be provided in this case to ensure that the loading platform P maintains a horizontal attitude during upward or downward movement.
  • a stretcher B or other suitable support means for receiving a person, to the end plates 20 of the sheets 18 of the two lifting devices 10.
  • a stretcher or other suitable support means for receiving a person
  • the lifting device of the present invention allows loads of various kinds to be moved vertically in a stable and safe manner using a single device or, at most, two devices operating in combination, without requiring a supporting structure resting on the floor and thus without taking up space on the floor.

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
EP24183161.9A 2023-06-20 2024-06-19 Dispositif de levage à fixer au plafond ou au mur Withdrawn EP4480887A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102023000012657A IT202300012657A1 (it) 2023-06-20 2023-06-20 Dispositivo di sollevamento fissabile a soffitto o a parete

Publications (1)

Publication Number Publication Date
EP4480887A1 true EP4480887A1 (fr) 2024-12-25

Family

ID=87974678

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24183161.9A Withdrawn EP4480887A1 (fr) 2023-06-20 2024-06-19 Dispositif de levage à fixer au plafond ou au mur

Country Status (2)

Country Link
EP (1) EP4480887A1 (fr)
IT (1) IT202300012657A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667035A (en) * 1995-10-19 1997-09-16 Hughes; Douglas J. Overhead platform elevation device
US20090255889A1 (en) * 2007-11-14 2009-10-15 Kurt Geffe Storage system
ES2328238T3 (es) * 2002-12-05 2009-11-11 EISENMANN ANLAGENBAU GMBH & CO. KG Dispositivo elevador movil.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667035A (en) * 1995-10-19 1997-09-16 Hughes; Douglas J. Overhead platform elevation device
ES2328238T3 (es) * 2002-12-05 2009-11-11 EISENMANN ANLAGENBAU GMBH & CO. KG Dispositivo elevador movil.
US20090255889A1 (en) * 2007-11-14 2009-10-15 Kurt Geffe Storage system

Also Published As

Publication number Publication date
IT202300012657A1 (it) 2024-12-20

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