EP1828506B1 - Elevator platform for motor vehicles and materials, and operating installation - Google Patents

Elevator platform for motor vehicles and materials, and operating installation Download PDF

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Publication number
EP1828506B1
EP1828506B1 EP05810915A EP05810915A EP1828506B1 EP 1828506 B1 EP1828506 B1 EP 1828506B1 EP 05810915 A EP05810915 A EP 05810915A EP 05810915 A EP05810915 A EP 05810915A EP 1828506 B1 EP1828506 B1 EP 1828506B1
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EP
European Patent Office
Prior art keywords
platform
uprights
vehicle
storeys
cylinder
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.)
Active
Application number
EP05810915A
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German (de)
French (fr)
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EP1828506A1 (en
Inventor
Eride Rossato
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.)
OMER SpA
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OMER SpA
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Publication date
Application filed by OMER SpA filed Critical OMER SpA
Priority to SI200531065T priority Critical patent/SI1828506T1/en
Priority to PL05810915T priority patent/PL1828506T3/en
Publication of EP1828506A1 publication Critical patent/EP1828506A1/en
Application granted granted Critical
Publication of EP1828506B1 publication Critical patent/EP1828506B1/en
Priority to CY20101100689T priority patent/CY1110677T1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H6/00—Buildings for parking cars, rolling-stock, aircraft, vessels or like vehicles, e.g. garages
    • E04H6/08—Garages for many vehicles
    • E04H6/12—Garages for many vehicles with mechanical means for shifting or lifting vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/04—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed
    • B66B5/042—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for detecting excessive speed characterised by specific locations of the governor cable

Definitions

  • the present invention relates to an elevator platform for motor vehicles and materials, and to an operating installation.
  • Vehicle elevator platforms comprising a pair of uprights to be fixed to the floor and wall, and a platform movable vertically along said uprights to pass from a lower position to an upper position raised above the lower position.
  • Such platforms are generally used in private parking areas of residences, hotels or apartment blocks, to move the vehicle from street level to one or more lower or upper storeys on which several vehicles are parked.
  • Elevator platforms exist in which the uprights are positioned to the sides of the platform, or in which the platform presents uprights only on one of the major sides.
  • the platform can be provided with four columns supporting a panel which perfectly closes the aperture in the road surface when the platform is completely lowered.
  • the elevator platform comprises substantially a pair of uprights 4 and a platform 6 slidable along the uprights 4.
  • Each upright consists of an H section bar provided along its entire length with welded plates 9 for its fixing to the wall and having a bottom welded plate 8 for its fixing to the ground.
  • Two T section bars 10 having one flange carrying a rack 14 are interposed between the uprights 4.
  • the platform is constructed of transversely embossed metal plate, one of the transverse channels thereof housing a transverse bar 16 which can rotate about its longitudinal axis and carries welded to its ends two pinions 18 constantly engaged in the corresponding racks 14.
  • Two hydraulic cylinder-piston units 20 of vertical axis are fixed to the base plate 8, to their piston rod 22 there being connected a pulley 24 about which there pass two chains 26 which at one end are fixed to the uprights and at the other end are fixed to the platform.
  • the two cylinder-piston units are fed by a single electro-hydraulic control centre (not shown in the drawings). It contains a maximum pressure valve for controlling the overload on the platform, both when rising and when descending.
  • a pressure gauge 25 displays the system pressure during normal operation.
  • the platform On that major side closer to the columns, the platform is provided with a vertical protection piece 38 in the form of a plate covering the columns, this plate being provided with a compartment containing a pushbutton unit 28 for controlling the movement of the platform during maintenance.
  • the platform In its centre the platform is provided with a hole 32 in which a wooden panel 34 is inserted, carrying on its lower side a device for sensing vehicle presence, consisting of a magnetic sensor 35.
  • a volumetric radar device 29 directed towards the vehicle is also applied to the vertical plate 38, to monitor any movements of persons on the platform during its transit.
  • a semaphore 3 is provided on one side of the pit at the upper storey aperture to indicate correct platform positioning at that storey.
  • the elevator platform of the invention also comprises two safety devices which intervene if the chains 26 slacken or if the platform suddenly falls.
  • a shoe 39 is provided, urged elastically against the chain 26 and connected to a normally deactivated switch 40 which, if the chain slackens, is activated by the movement of the shoe 39.
  • the switch generally blocks electrical feed to the electrical panel and in particular blocks power to the pump feeding oil to the cylinder-piston units during the ascent of the platform, while during its descent blocks power to the solenoid valve.
  • An endless metal cable 41 passing about two return pulleys is also rigid with the platform 6.
  • a lever rigid with said cable is provided with a clamp 43 which slides along the central flange of the T section bar 10 and remains disengaged therefrom if the cable 41 is travelling at constant speed, i.e. during regular ascent or descent of the platform.
  • the radar device, the magnetic sensor and the photoelectric cell are all connected to a control unit which, if an irregularity is indicated (person leaving the vehicle, vehicle not correctly positioned on the platform, lifting of non-metallic bodies), causes the hydraulic control centre to block the pump feeding oil to the cylinder-piston units.
  • two seats 44 are provided, housing two cylinder-piston units 45 of horizontal axis, the piston rod 47 of which, when extended, forms a locking bolt engagable in a bush 46 provided in the edge of the platform.
  • the elevator platform of the invention is used in the following manner:
  • the driver causes the platform to move along the uprights, this movement comprising in succession:
  • the signal fed to the control unit causes the hydraulic control centre to block the oil feed pump.
  • a similar command is fed to the hydraulic control centre if the user leaves the vehicle, as the user's presence is detected by the radar device.
  • the radar device 29 If the user wishes to move on the platform, the radar device 29 must be deactivated
  • the entire edge of the platform is provided with a parapet which is rigid along the major sides, whereas it is removable on the minor sides to enable the vehicle to transit.
  • the safety device consists of a cup spring 48 contained in an expandable socket 49 the base of which is conical and is traversed by a pin 50 connected to the two chains 26.
  • microswitch 51 Facing the base of the socket there is a microswitch 51 which generally blocks electrical feed to the electrical panel, and in particular blocks power to the pump feeding oil to the cylinder-piston units during the ascent of the platform, while during its descent blocks power to the solenoid valve.
  • cup spring 48 remains compressed by the weight of the platform. If a cylinder-piston unit or the chain breaks, the elastic reaction of the spring, no longer urged to compress, causes the socket 49 to expand so that its conical base activates the microswitch 51.
  • control console 52 accessible to the driver while seated in the vehicle driver's seat.
  • the console is provided in particular with control pushbuttons for:
  • the platform 6 of the invention can be housed within a protected vertical bay provided with a lighting system, and comprising for example a wall, an enclosure with perforated metal sheeting provided with doors to the storeys, electrically operated locks and a control panel combined with the hydraulic control centre, and positioned in a service room adjacent to the shaft.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Types And Forms Of Lifts (AREA)
  • Platform Screen Doors And Railroad Systems (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Jib Cranes (AREA)
  • Lock And Its Accessories (AREA)

Abstract

An elevator platform between at least two overlying storeys, comprising a pair of uprights (4) to be fixed to the ground, a platform (6) arranged to receive a motor vehicle, and means (20, 22) for driving said platform at constant speed along said uprights between a lower position and an upper position, in each of which the platform is coplanar with the floors of said storeys, characterised by comprising means for blocking the free fall of the platform.

Description

  • The present invention relates to an elevator platform for motor vehicles and materials, and to an operating installation.
  • Vehicle elevator platforms are known comprising a pair of uprights to be fixed to the floor and wall, and a platform movable vertically along said uprights to pass from a lower position to an upper position raised above the lower position.
  • Such platforms are generally used in private parking areas of residences, hotels or apartment blocks, to move the vehicle from street level to one or more lower or upper storeys on which several vehicles are parked.
  • Elevator platforms exist in which the uprights are positioned to the sides of the platform, or in which the platform presents uprights only on one of the major sides. In the case of a platform connecting to a space below ground level, the platform can be provided with four columns supporting a panel which perfectly closes the aperture in the road surface when the platform is completely lowered.
  • These known platform elevators have however been shown to be susceptible to improvement with regard to the safety of the passenger seated in th vehicle during the ascent or descent of the platform.
  • Document EP 0731240 A discloses an elevator platform having the features of the preamble of claim 1.
  • This object is attained according to the invention by a motor vehicle elevator platform as described in claim 1.
  • A preferred embodiment of the present invention is described in detail hereinafter with reference to the accompanying drawings, in which:
    • Figure 1
    is a front view of an elevator platform according to the invention,
    Figure 2
    is a side view thereof,
    Figure 3
    is a plan view thereof, and
    Figure 4
    shows a variant of the locking means.
  • As can be seen from the figures, the elevator platform according to the invention comprises substantially a pair of uprights 4 and a platform 6 slidable along the uprights 4.
  • Each upright consists of an H section bar provided along its entire length with welded plates 9 for its fixing to the wall and having a bottom welded plate 8 for its fixing to the ground.
  • Two T section bars 10 having one flange carrying a rack 14 are interposed between the uprights 4.
  • The platform is constructed of transversely embossed metal plate, one of the transverse channels thereof housing a transverse bar 16 which can rotate about its longitudinal axis and carries welded to its ends two pinions 18 constantly engaged in the corresponding racks 14.
  • Two hydraulic cylinder-piston units 20 of vertical axis are fixed to the base plate 8, to their piston rod 22 there being connected a pulley 24 about which there pass two chains 26 which at one end are fixed to the uprights and at the other end are fixed to the platform.
  • The two cylinder-piston units are fed by a single electro-hydraulic control centre (not shown in the drawings). It contains a maximum pressure valve for controlling the overload on the platform, both when rising and when descending. A pressure gauge 25 displays the system pressure during normal operation. On that major side closer to the columns, the platform is provided with a vertical protection piece 38 in the form of a plate covering the columns, this plate being provided with a compartment containing a pushbutton unit 28 for controlling the movement of the platform during maintenance. In its centre the platform is provided with a hole 32 in which a wooden panel 34 is inserted, carrying on its lower side a device for sensing vehicle presence, consisting of a magnetic sensor 35.
  • On that major side of the platform more distant from the uprights there are provided two columns 36 provided with photoelectric cells 37 to monitor the amount by which the vehicle projects from the platform. By means of another photoelectric cell mounted on the column 36 the major side of the platform is monitored, in such a manner as to form an ideal rectangle representing the containing region for the vehicle mounted on the platform.
  • A volumetric radar device 29 directed towards the vehicle is also applied to the vertical plate 38, to monitor any movements of persons on the platform during its transit.
  • Below the platform there are provided two articulated arms 30 which under normal conditions are disposed substantially in a horizontal configuration but which when rotated through 90° form a support for the platform within the containing pit 33 to facilitate platform inspection and maintenance.
  • A semaphore 3 is provided on one side of the pit at the upper storey aperture to indicate correct platform positioning at that storey.
  • The elevator platform of the invention also comprises two safety devices which intervene if the chains 26 slacken or if the platform suddenly falls.
  • Specifically, a shoe 39 is provided, urged elastically against the chain 26 and connected to a normally deactivated switch 40 which, if the chain slackens, is activated by the movement of the shoe 39. The switch generally blocks electrical feed to the electrical panel and in particular blocks power to the pump feeding oil to the cylinder-piston units during the ascent of the platform, while during its descent blocks power to the solenoid valve.
  • An endless metal cable 41 passing about two return pulleys is also rigid with the platform 6. A lever rigid with said cable is provided with a clamp 43 which slides along the central flange of the T section bar 10 and remains disengaged therefrom if the cable 41 is travelling at constant speed, i.e. during regular ascent or descent of the platform.
  • If the platform accelerates due to sudden falling, the lever intervenes in the sense of causing the flange to be clamped by the clamp 43.
  • The radar device, the magnetic sensor and the photoelectric cell are all connected to a control unit which, if an irregularity is indicated (person leaving the vehicle, vehicle not correctly positioned on the platform, lifting of non-metallic bodies), causes the hydraulic control centre to block the pump feeding oil to the cylinder-piston units.
  • Within the floor slab of the arrival storey or storeys two seats 44 are provided, housing two cylinder-piston units 45 of horizontal axis, the piston rod 47 of which, when extended, forms a locking bolt engagable in a bush 46 provided in the edge of the platform.
  • The elevator platform of the invention is used in the following manner:
    • when the platform is coplanar with the floor of the lower or upper storey (condition in which the piston rods 47 are inserted into a corresponding bush 46), the vehicle is driven onto the platform and positioned so as not to interfere with the photoelectric cells.
  • At this point, using a remote control, the driver causes the platform to move along the uprights, this movement comprising in succession:
    • disengaging the piston rods 47 from the bushes,
    • feeding oil into the hydraulic cylinder-piston units to cause the piston rods 22 of the cylinder-piston units 20 to retract or extend.
  • In this stage, because of the rigid torsional connection between the two pinions 18 and their constant engagement with the rack 14, the elongation of the cylinder-piston units is identical independently of any load unbalance on the platform, which therefore ascends while remaining perfectly parallel to the ground.
  • If one of the two hydraulic cylinders fractures, the torsional connection is able to maintain the platform stable, so preventing falling.
  • If the user inadvertently opens a door and this interferes with the field of action of the photoelectric cells, the signal fed to the control unit causes the hydraulic control centre to block the oil feed pump. Likewise a similar command is fed to the hydraulic control centre if the user leaves the vehicle, as the user's presence is detected by the radar device.
  • If the user wishes to move on the platform, the radar device 29 must be deactivated
  • In a variant, not shown in the drawings, the entire edge of the platform is provided with a parapet which is rigid along the major sides, whereas it is removable on the minor sides to enable the vehicle to transit.
  • In the embodiment shown in Figure 4, a variant of the system for sensing chain slackening is represented. The safety device consists of a cup spring 48 contained in an expandable socket 49 the base of which is conical and is traversed by a pin 50 connected to the two chains 26.
  • Facing the base of the socket there is a microswitch 51 which generally blocks electrical feed to the electrical panel, and in particular blocks power to the pump feeding oil to the cylinder-piston units during the ascent of the platform, while during its descent blocks power to the solenoid valve.
  • During normal operation the cup spring 48 remains compressed by the weight of the platform. If a cylinder-piston unit or the chain breaks, the elastic reaction of the spring, no longer urged to compress, causes the socket 49 to expand so that its conical base activates the microswitch 51.
  • With the platform there is also associated a control console 52 accessible to the driver while seated in the vehicle driver's seat. The console is provided in particular with control pushbuttons for:
    • ascent,
    • descent,
    • alarm with activation and possible remote assistance (short press on pushbutton for alarm activation, long press for remote assistance),
    • microphone connected to a loudspeaker provided in the machine room,
    • pushbutton unit to be broken in case of fire. On operation, this pushbutton unit emits an alarm signal, the platform is lowered to the ground, the door lock is released and power is shut off to the motor of the pump feeding oil to the hydraulic cylinder-piston units.
  • The platform 6 of the invention can be housed within a protected vertical bay provided with a lighting system, and comprising for example a wall, an enclosure with perforated metal sheeting provided with doors to the storeys, electrically operated locks and a control panel combined with the hydraulic control centre, and positioned in a service room adjacent to the shaft.

Claims (18)

  1. An elevator platform between at least two overlying storeys, comprising a pair of uprights (4) to be fixed to the ground, a platform (6) arranged to receive a motor vehicle, and means (20, 22) for driving said platform at constant speed along said uprights between a lower position and an upper position, in each of which the platform is coplanar with the floors of said storeys, and means for blocking the free fall of the platform, characterised in that it comprises section bars (10) parallel to said uprights (4), in that said blocking means consist of a cable (41) passing about two pulleys being secured to the platform and being provided with means (43) for its coupling to section bars (10) parallel to the uprights, which means being activated if the cable travel accelerates, and further in that it comprises a transverse bar (16) free to rotate relative to the platform and provided at its ends with two pinions (18) engaged in racks (14) rigid with the section bars (10).
  2. A platform as claimed in claim 1, characterised in that said coupling means consist of a clamp (43) which engages a flange of the section bars.
  3. A platform as claimed in claim 1, characterised in that the drive means consist of hydraulic cylinder-piston units (20).
  4. A platform as claimed in claim 3, characterised in that to the piston rod (22) of each cylinder-piston unit (20) there is secured a return pulley (24) for at least one chain (26) which at one end is fixed to the uprights (4) and at the other end is fixed to the platform (6).
  5. A platform as claimed in claim 4, characterised in that the hydraulic cylinder-piston units (20) are fed by a hydraulic control centre connected to a control unit.
  6. A platform as claimed in claim 5, characterised in that the control unit is connected to a plurality of sensors for sensing the position of the vehicle and/or of the passenger on the platform, said unit blocking the hydraulic control centre if an irregularity signal is emitted by the sensors.
  7. A platform as claimed in claim 6, characterised in that one sensor consists of photoelectric cells (37) which sense the correct positioning of the vehicle on the platform.
  8. A platform as claimed in claim 6, characterised in that one sensor consists of a device (29) for sensing the movement of persons on the platform.
  9. A platform as claimed in claim 6, characterised in that one sensor consists of a chain tension measurer (39).
  10. A platform as claimed in claim 1, characterised in that the platform (6) is provided with two foldable arms (30) forming support struts during inspection.
  11. A platform as claimed in claim 6, characterised in that one sensor consists of a system (35) for determining the presence of a vehicle on the platform.
  12. A platform as claimed in claim 6, characterised in that one sensor comprises an overload sensing member (25).
  13. A platform as claimed in claim 4, characterised by having associated therewith two cup springs (48) secured to the chains and maintained compressed during normal platform operation, said springs interacting with a microswitch for deactivating the platform drive if the chains break.
  14. A platform as claimed in claim 13, characterised in that the microswitch blocks electrical power to the pump feeding oil to the cylinder-piston units during platform ascent.
  15. A platform as claimed in claim 13, characterised in that the microswitch blocks electrical feed to the electrical panel.
  16. An operating installation comprising a platform in accordance with one or more of claims 1 to 15, characterised by comprising a protected vertical bay enclosing the platform and combined with a lighting system.
  17. An installation as claimed in claim 16, characterised by being provided with doors at the storeys, with electrically operated locks and with a control panel combined with a hydraulic control centre.
  18. An installation as claimed in claim 16, characterised in that associated with the platform there is a control console (52) accessible to the driver when seated in the driving seat of the vehicle mounted on the platform, said console being provided with control pushbuttons for:
    - ascent,
    - descent,
    - alarm with activation and possible remote assistance,
    - microphone connected to a loudspeaker,
    - pushbutton unit to be broken in case of fire.
EP05810915A 2004-11-17 2005-11-15 Elevator platform for motor vehicles and materials, and operating installation Active EP1828506B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI200531065T SI1828506T1 (en) 2004-11-17 2005-11-15 Elevator platform for motor vehicles and materials, and operating installation
PL05810915T PL1828506T3 (en) 2004-11-17 2005-11-15 Elevator platform for motor vehicles and materials, and operating installation
CY20101100689T CY1110677T1 (en) 2004-11-17 2010-07-22 EXTREME ELEVATOR FOR MOTOR VEHICLES AND MATERIALS AND OPERATING INSTALLATION

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000047A ITVE20040047A1 (en) 2004-11-17 2004-11-17 LIFTING PLATFORM FOR MOTOR VEHICLES AND MATERIALS AND HANDLING SYSTEM.
PCT/EP2005/012239 WO2006053716A1 (en) 2004-11-17 2005-11-15 Elevator platform for motor vehicles and materials, and operating installation

Publications (2)

Publication Number Publication Date
EP1828506A1 EP1828506A1 (en) 2007-09-05
EP1828506B1 true EP1828506B1 (en) 2010-05-12

Family

ID=35788165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05810915A Active EP1828506B1 (en) 2004-11-17 2005-11-15 Elevator platform for motor vehicles and materials, and operating installation

Country Status (12)

Country Link
EP (1) EP1828506B1 (en)
AT (1) ATE467737T1 (en)
CY (1) CY1110677T1 (en)
DE (1) DE602005021246D1 (en)
DK (1) DK1828506T3 (en)
ES (1) ES2345450T3 (en)
IT (1) ITVE20040047A1 (en)
PL (1) PL1828506T3 (en)
PT (1) PT1828506E (en)
RU (1) RU2379450C2 (en)
SI (1) SI1828506T1 (en)
WO (1) WO2006053716A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
WO2019157229A1 (en) * 2018-02-07 2019-08-15 CityLift Parking, LLC Vehicle lift and storage system utilizing a multi-axis accelerometer

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CN104210563B (en) * 2013-06-05 2017-12-01 上海鑫百勤专用车辆有限公司 Multiple field conveying carriage and its application method, a kind of transport vehicle
CN103388413A (en) * 2013-08-07 2013-11-13 荣键 Automatic lifting underground garage
FR3046414B1 (en) * 2016-01-06 2020-08-28 Db Ind MOVABLE FLOOR HYDRAULICALLY SYNCHRONIZED BY A WATER CYLINDER SYSTEM (PMSH-H20)
US10745928B2 (en) 2018-02-07 2020-08-18 CityLift Parking, LLC Connected vehicle lift and storage system
US10683676B2 (en) 2018-02-07 2020-06-16 CityLift Parking, LLC Vehicle lift and storage system utilizing a multi-axis accelerometer
CN111622551A (en) * 2020-03-24 2020-09-04 安徽宇升智能装备有限公司 A backstop mechanism, rotary mechanism and stereo garage for stereo garage
CN113666214B (en) * 2021-09-24 2024-10-15 伊萨电梯有限公司 Manned platform structure of platform elevator

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Publication number Priority date Publication date Assignee Title
WO2019157229A1 (en) * 2018-02-07 2019-08-15 CityLift Parking, LLC Vehicle lift and storage system utilizing a multi-axis accelerometer

Also Published As

Publication number Publication date
DE602005021246D1 (en) 2010-06-24
RU2379450C2 (en) 2010-01-20
WO2006053716A1 (en) 2006-05-26
EP1828506A1 (en) 2007-09-05
ITVE20040047A1 (en) 2005-02-17
CY1110677T1 (en) 2015-06-10
DK1828506T3 (en) 2010-08-16
ATE467737T1 (en) 2010-05-15
PT1828506E (en) 2010-07-29
RU2007122511A (en) 2008-12-27
ES2345450T3 (en) 2010-09-23
PL1828506T3 (en) 2010-10-29
SI1828506T1 (en) 2010-09-30

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