WO1998015489A1 - Lifting apparatus - Google Patents

Lifting apparatus Download PDF

Info

Publication number
WO1998015489A1
WO1998015489A1 PCT/FI1997/000591 FI9700591W WO9815489A1 WO 1998015489 A1 WO1998015489 A1 WO 1998015489A1 FI 9700591 W FI9700591 W FI 9700591W WO 9815489 A1 WO9815489 A1 WO 9815489A1
Authority
WO
WIPO (PCT)
Prior art keywords
lifting
lifting apparatus
drive shaft
frame
shaft
Prior art date
Application number
PCT/FI1997/000591
Other languages
French (fr)
Inventor
Teuvo LEHTIMÄKI
Original Assignee
Sunds Defibrator Panelhandling Oy
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 Sunds Defibrator Panelhandling Oy filed Critical Sunds Defibrator Panelhandling Oy
Priority to EP97942977A priority Critical patent/EP1009707A1/en
Priority to CA002267215A priority patent/CA2267215A1/en
Publication of WO1998015489A1 publication Critical patent/WO1998015489A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/08—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device
    • B65H1/14—Supports or magazines for piles from which articles are to be separated with means for advancing the articles to present the articles to the separating device comprising positively-acting mechanical devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/02—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms suspended from ropes, cables, or chains or screws and movable along pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the present invention relates to a lifting apparatus as defined in the preamble of claim 1.
  • a lifting apparatus with a raiseable and lowerable lifting frame is often used.
  • the lifting frame can be provided with a conveyor system or e.g. a roller track, which serves as a carrier to move panels or panel stacks.
  • lifting capacities of the order of e.g. 10000-20000 kg are needed.
  • the lifting apparatus applied in the feed station employs a hydraulic drive that raises and lowers a lifting frame using chain transmission.
  • Such a solution requires fairly complex and strong structures.
  • the hydraulic system is susceptible to leaks that may cause damage to the panels being handled. Adjusting the hydraulic systems is difficult and usually requires the use of proportional or servo techniques, leading to complex systems involving difficulties e.g. in respect of maintenance.
  • the object of the present invention is to achieve a new type of lifting apparatus that obviates the drawbacks of prior art.
  • the apparatus of the invention has numerous significant advantages.
  • the invention makes it possible to use a structural solution that is simpler than earlier solutions. Slots formed at the ends of lifting shafts permit easy and reliable attachment of lifting belts.
  • the use of lifting belts allows a very compact structure.
  • the drive system permits very accurate vertical positioning of the lifting frame, which can also be easily adjusted. Master and slave drives allow precise adjustment of several drive shafts even in a situation where the lifting frame has an uneven load.
  • Fig. 1 presents a lifting apparatus according to the invention in side view
  • Fig. 2 presents a lifting apparatus according to the invention in end view
  • Fig. 3 presents a lifting apparatus according to the invention in top view
  • Fig. 4 presents a detail of Fig. 1 as sectioned along line IV-IV,
  • Fig. 5 presents the end of a drive shaft in the lifting apparatus of the invention as sectioned along an axial plane
  • Fig. 6 presents the end of the drive shaft as sec- tioned along line VI-VI in Fig. 5.
  • Lifting apparatus especially for stacking or unstacking stations on panel handling lines, said apparatus comprising a raiseable and lowerable lifting frame 1 and means for raising and lowering the lifting frame.
  • the means for raising and lowering the lifting frame comprise at least one drive shaft 2, 3 and at least two lifting belts 4, 5, 6, 7, the first end of which is attached to the drive shaft 2, 3 while the second end is attached to the lifting frame 1 or arranged to pass via the lifting frame and attached to the frame structure of the lifting apparatus.
  • the lifting apparatus comprises a frame which has a pillar 8 at each corner as well as longitudinal supporting beams 9 and transverse supporting beams 10.
  • the drive shafts 2, 3 are disposed in the upper part of the frame in a transverse position between the pillars 8.
  • the drive shafts 2, 3 are supported by bearings placed at a distance from the end of the shaft 2, 3 so that the end of each shaft remains free.
  • the drive shafts 2, 3 are driven by a drive unit 11, preferably via a transmission 12.
  • the drive unit preferably consists of a conventional combination of a cage induction motor 11 and a pin transmission 12.
  • the lifting belts 4, 5, 6, 7 are placed on the free ends of the drive shafts 2, 3, so that, when the shafts 2, 3 are rotated, the belts are wound around the shafts, thus raising the lifting frame 1.
  • the lifting belt 4, 5, 6, 7 is unwound from the shaft and the lifting frame 1 is lowered.
  • the other end of the lifting belt is attached by means of fixing devices 13, 14, 15 to the lifting frame 1, or alternatively the lifting belt is arranged to pass via a diverting pulley or the like mounted on the lifting frame and attached by means of fixing devices to the frame of the lifting apparatus.
  • “Lifting belt'” refers to a lifting strap with at least one loop formed in it. Usually the lifting belt has a loop at each end.
  • the drive shaft 2, 3 is provided with a slot 16 or the like to permit a lifting belt 4 to be attached to the drive shaft (Fig. 5 and 6) .
  • the slot 16 forms a cleft at the end of the drive shaft. In the axial direction of the shaft, the slot 16 extends through a distance at least corresponding to the width of the lifting belt 4.
  • the loop at the end of the lifting belt 4 is placed on the shaft 2 so that part of the loop is in the slot 16.
  • the edges of the slot are preferably rounded.
  • the end of the drive shaft 2 is provided with a flange element 17 to prevent the lifting belt 4 from coming off the shaft 2 as it is wound up on the shaft.
  • the flange element 17 has a diameter substantially larger than that of the shaft 2.
  • the flange element comprises a counter element 18 designed to fit into the slot 16.
  • the counter element 18 prevents the shaft end segments 2', 2 ' ' on opposite sides of the slot 16 from being pressed together.
  • the shaft end is provided with a cen- tral mortise 19, in which case the counter element 18 of the flange 17 is a projection, sleeve or the like that fits into the mortise.
  • a cut-out 20 that fits onto the shaft end so that the flange element can be firmly fixed to the end of the drive shaft 2 by means of fixing elements 21, such as screws.
  • the flange element 17 keeps the shaft end segments 2', 2 ' ' and therefore the slot 16 in a straight position.
  • the lifting apparatus has two drive shafts 2, 3, each with two lifting belts 4, 5, 6, 7 arranged to raise and lower the lifting frame 1.
  • the lifting belts are arranged to raise the lifting frame 1 directly via fixing elements 13, 14, 15.
  • a solution can be used in which the lifting belt 4, 5, 6, 7 passes around one or more diverting pulleys (not shown) .
  • the drive shafts 2, 3 are driven by a drive unit 11 preferably provided with a frequency converter and a pulse sensor or equivalent. This allows a very accurate control of the drive shafts.
  • one of the drive units is a so-called master drive while the others are so-called slave drives.
  • the slave drives closely follow the master drive e.g. on the basis of readings obtained from the pulse sensor, with the result that the lifting frame 1 e.g. remains accurately in a straight position. This also makes it possible to avoid deviations of the lifting frame from the horizontal plane due to uneven load.
  • the lifting capacity of the lifting apparatus of the invention is e.g. 10000 kg
  • a " lifting belt of polyester textile material having a width of 100 mm and a thickness of 3.2 mm and a rated load of 4000 kg.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)

Abstract

Lifting apparatus, especially for stacking or unstacking stations of panel handling lines, said lifting apparatus comprising a raiseable and lowerable lifting frame (1) and means for raising and lowering the lifting frame. The means for raising and lowering the lifting frame comprise at least one drive shaft (2, 3) and at least two lifting belts (4, 5, 6, 7), whose first end is attached to the drive shaft (2, 3) in a manner allowing the lifting belts to be wound up around the shaft, while their second end is attached to the lifting frame (1) or arranged to pass via a diverting pulley on the lifting frame and attached to the frame structure of the lifting apparatus.

Description

LIFTING APPARATUS
The present invention relates to a lifting apparatus as defined in the preamble of claim 1.
In panel handling systems, especially in conjunction with feed stations or stacking stations, a lifting apparatus with a raiseable and lowerable lifting frame is often used. The lifting frame can be provided with a conveyor system or e.g. a roller track, which serves as a carrier to move panels or panel stacks. In panel handling systems, lifting capacities of the order of e.g. 10000-20000 kg are needed. In a known solution, pre- sented in international patent specification WO 94/11285, the lifting apparatus applied in the feed station employs a hydraulic drive that raises and lowers a lifting frame using chain transmission. Such a solution requires fairly complex and strong structures. Moreover, the hydraulic system is susceptible to leaks that may cause damage to the panels being handled. Adjusting the hydraulic systems is difficult and usually requires the use of proportional or servo techniques, leading to complex systems involving difficulties e.g. in respect of maintenance.
The object of the present invention is to achieve a new type of lifting apparatus that obviates the drawbacks of prior art.
The invention is characterized by what is presented in the claims.
The apparatus of the invention has numerous significant advantages. The invention makes it possible to use a structural solution that is simpler than earlier solutions. Slots formed at the ends of lifting shafts permit easy and reliable attachment of lifting belts. The use of lifting belts allows a very compact structure. The drive system permits very accurate vertical positioning of the lifting frame, which can also be easily adjusted. Master and slave drives allow precise adjustment of several drive shafts even in a situation where the lifting frame has an uneven load.
In the following, the invention will be described in de- tail by the aid of an embodiment example by referring to the attached drawing, in which
Fig. 1 presents a lifting apparatus according to the invention in side view,
Fig. 2 presents a lifting apparatus according to the invention in end view,
Fig. 3 presents a lifting apparatus according to the invention in top view,
Fig. 4 presents a detail of Fig. 1 as sectioned along line IV-IV,
Fig. 5 presents the end of a drive shaft in the lifting apparatus of the invention as sectioned along an axial plane, and
Fig. 6 presents the end of the drive shaft as sec- tioned along line VI-VI in Fig. 5.
Lifting apparatus, especially for stacking or unstacking stations on panel handling lines, said apparatus comprising a raiseable and lowerable lifting frame 1 and means for raising and lowering the lifting frame. The means for raising and lowering the lifting frame comprise at least one drive shaft 2, 3 and at least two lifting belts 4, 5, 6, 7, the first end of which is attached to the drive shaft 2, 3 while the second end is attached to the lifting frame 1 or arranged to pass via the lifting frame and attached to the frame structure of the lifting apparatus.
The lifting apparatus comprises a frame which has a pillar 8 at each corner as well as longitudinal supporting beams 9 and transverse supporting beams 10. In the em- bodiment illustrated by the figures, the drive shafts 2, 3 are disposed in the upper part of the frame in a transverse position between the pillars 8. The drive shafts 2, 3 are supported by bearings placed at a distance from the end of the shaft 2, 3 so that the end of each shaft remains free. The drive shafts 2, 3 are driven by a drive unit 11, preferably via a transmission 12. The drive unit preferably consists of a conventional combination of a cage induction motor 11 and a pin transmission 12.
The lifting belts 4, 5, 6, 7 are placed on the free ends of the drive shafts 2, 3, so that, when the shafts 2, 3 are rotated, the belts are wound around the shafts, thus raising the lifting frame 1. When the shafts are rotated in the opposite direction, the lifting belt 4, 5, 6, 7 is unwound from the shaft and the lifting frame 1 is lowered. The other end of the lifting belt is attached by means of fixing devices 13, 14, 15 to the lifting frame 1, or alternatively the lifting belt is arranged to pass via a diverting pulley or the like mounted on the lifting frame and attached by means of fixing devices to the frame of the lifting apparatus.
■"Lifting belt' refers to a lifting strap with at least one loop formed in it. Usually the lifting belt has a loop at each end. The drive shaft 2, 3 is provided with a slot 16 or the like to permit a lifting belt 4 to be attached to the drive shaft (Fig. 5 and 6) . The slot 16 forms a cleft at the end of the drive shaft. In the axial direction of the shaft, the slot 16 extends through a distance at least corresponding to the width of the lifting belt 4. The loop at the end of the lifting belt 4 is placed on the shaft 2 so that part of the loop is in the slot 16. The edges of the slot are preferably rounded.
The end of the drive shaft 2 is provided with a flange element 17 to prevent the lifting belt 4 from coming off the shaft 2 as it is wound up on the shaft. The flange element 17 has a diameter substantially larger than that of the shaft 2. The flange element comprises a counter element 18 designed to fit into the slot 16. The counter element 18 prevents the shaft end segments 2', 2 ' ' on opposite sides of the slot 16 from being pressed together. Preferably the shaft end is provided with a cen- tral mortise 19, in which case the counter element 18 of the flange 17 is a projection, sleeve or the like that fits into the mortise. Formed in the flange element 17 is a cut-out 20 that fits onto the shaft end so that the flange element can be firmly fixed to the end of the drive shaft 2 by means of fixing elements 21, such as screws. At the same time, the flange element 17 keeps the shaft end segments 2', 2 ' ' and therefore the slot 16 in a straight position.
In the example illustrated by Fig. 1 - 4, the lifting apparatus has two drive shafts 2, 3, each with two lifting belts 4, 5, 6, 7 arranged to raise and lower the lifting frame 1. The lifting belts are arranged to raise the lifting frame 1 directly via fixing elements 13, 14, 15. Alternatively, a solution can be used in which the lifting belt 4, 5, 6, 7 passes around one or more diverting pulleys (not shown) . The drive shafts 2, 3 are driven by a drive unit 11 preferably provided with a frequency converter and a pulse sensor or equivalent. This allows a very accurate control of the drive shafts. When there are more than one drive unit, one of the drive units is a so-called master drive while the others are so-called slave drives. The slave drives closely follow the master drive e.g. on the basis of readings obtained from the pulse sensor, with the result that the lifting frame 1 e.g. remains accurately in a straight position. This also makes it possible to avoid deviations of the lifting frame from the horizontal plane due to uneven load.
When the lifting capacity of the lifting apparatus of the invention is e.g. 10000 kg, it is possible to use a" lifting belt of polyester textile material having a width of 100 mm and a thickness of 3.2 mm and a rated load of 4000 kg.
It is obvious to the skilled person that the invention is not restricted to the embodiments described above, but that it may be varied in the scope of the claims presented below. Thus, it is also possible to use an embodiment having only one drive shaft, to which the lift- ing belts are attached.

Claims

1. Lifting apparatus, especially for stacking or un- stacking stations on panel handling lines, said lifting apparatus comprising a raiseable and lowerable lifting frame (1) and means for raising and lowering the lifting frame, characterized in that the means for raising and lowering the lifting frame comprise at least one drive shaft (2, 3) and at least two lifting belts (4, 5, 6, 7), whose first end is attached to the drive shaft (2, 3) in a manner allowing the lifting belts to be wound up around the shaft, while their second end is attached to the lifting frame (1) or arranged to pass via a diverting pulley on the lifting frame and attached to the frame structure of the lifting apparatus.
2. Lifting apparatus as defined in claim 1, characterized in that the drive shaft (2, 3) is provided with a slot (16) or the like to allow the lifting belt (4, 5, 6, 7) to be attached to the drive shaft (2, 3) .
3. Lifting apparatus as defined in claim 1 or 2, characterized in that the lifting belt (4, 5, 6, 7) comprises at least one loop by which the lifting belt is attached to the drive shaft (2, 3) .
4. Lifting apparatus as defined in any one of the preceding claims 1 - 3, characterized in that the slot (16) cleaves the end of the shaft.
5. Lifting apparatus as defined in any one of the preceding claims 1 - 4, characterized in that the slot (16) extends in the axial direction of the shaft through a distance at least corresponding to the width of the lifting belt (4, 5, 6, 7).
6. Lifting apparatus as defined in any one of the preceding claims 1 - 5, characterized in that the end of the drive shaft (2r 3) is provided with a flange element (17) comprising a counter element (18) that can be fit- ted into the slot (16) .
7. Lifting apparatus as defined in any one of the preceding claims 1 - 6, characterized in that the end of the drive shaft (2, 3) is provided with a mortise (19) , preferably centrally, and the counter element (18) of the flange (17) consists of a projection, sleeve or the like that fits into the mortise.
8. Lifting apparatus as defined in any one of the pre- ceding claims 1 - 7, characterized in that the flange element (17) has a cut-out (2) formed for the end of the drive shaft (2, 3) .
9. Lifting apparatus as defined in any one of the pre- ceding claims 1 - 8, characterized in that the lifting apparatus has two drive shafts (2, 3) , each with two lifting belts (4, 5, 6, 7) arranged to raise and lower the lifting frame (1) .
10. Lifting apparatus as defined in any one of the preceding claims 1 - 9, each drive shaft (2, 3) is arranged to be driven by a drive unit (11) provided with a frequency converter and a pulse sensor or equivalent.
11. Lifting apparatus as defined in any one of the preceding claims 1 - 10, characterized in that if there are more than one drive (11), one of the drives is a so- called master drive while the others are so-called slave drives .
PCT/FI1997/000591 1996-10-04 1997-10-01 Lifting apparatus WO1998015489A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP97942977A EP1009707A1 (en) 1996-10-04 1997-10-01 Lifting apparatus
CA002267215A CA2267215A1 (en) 1996-10-04 1997-10-01 Lifting apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI963987 1996-10-04
FI963987A FI101285B1 (en) 1996-10-04 1996-10-04 Hoist

Publications (1)

Publication Number Publication Date
WO1998015489A1 true WO1998015489A1 (en) 1998-04-16

Family

ID=8546808

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1997/000591 WO1998015489A1 (en) 1996-10-04 1997-10-01 Lifting apparatus

Country Status (4)

Country Link
EP (1) EP1009707A1 (en)
CA (1) CA2267215A1 (en)
FI (1) FI101285B1 (en)
WO (1) WO1998015489A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026119A1 (en) * 1999-02-06 2000-08-09 Gate Gourmet International Ag Lifting device, especially for containers
US6863159B2 (en) 2000-08-31 2005-03-08 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Vehicle lifting platform
EP1559672A1 (en) * 2004-01-15 2005-08-03 Fillmatic Polsterindustrie-Maschinen GmbH Stacking device for loads, particularly mattresses
WO2007085243A2 (en) * 2006-01-30 2007-08-02 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Parking platform for motor vehicles
CN104030189A (en) * 2014-06-16 2014-09-10 苏州经贸职业技术学院 Variable-height portable lifter
CN104261233A (en) * 2014-08-28 2015-01-07 苏州美罗升降机械有限公司 Lifter

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202064A (en) * 1977-04-26 1980-05-13 Joergensen Gunnar I Unit for vertical and horizontal personal transport
GB2173163A (en) * 1985-03-20 1986-10-08 John Robert Goodyer Raising and lowering apparatus
WO1994011285A1 (en) * 1992-11-19 1994-05-26 Oy Raumatic Ab Method for feeding a sheet substack from a sheet stack and apparatus for implementing said method
DE19508492A1 (en) * 1995-03-09 1996-09-12 Bayerische Park Und Lagersyste Conveyor for palettes within parking and storage system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202064A (en) * 1977-04-26 1980-05-13 Joergensen Gunnar I Unit for vertical and horizontal personal transport
GB2173163A (en) * 1985-03-20 1986-10-08 John Robert Goodyer Raising and lowering apparatus
WO1994011285A1 (en) * 1992-11-19 1994-05-26 Oy Raumatic Ab Method for feeding a sheet substack from a sheet stack and apparatus for implementing said method
DE19508492A1 (en) * 1995-03-09 1996-09-12 Bayerische Park Und Lagersyste Conveyor for palettes within parking and storage system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 95, No. 9; & JP,A,07 144 891, DAIFUKU CO. LTD., (06-06-95). *

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1026119A1 (en) * 1999-02-06 2000-08-09 Gate Gourmet International Ag Lifting device, especially for containers
WO2000046141A1 (en) * 1999-02-06 2000-08-10 Gate Gourmet International Ag Lifting device
US6863159B2 (en) 2000-08-31 2005-03-08 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Vehicle lifting platform
US7028811B2 (en) 2000-08-31 2006-04-18 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Vehicle lifting platform
EP1559672A1 (en) * 2004-01-15 2005-08-03 Fillmatic Polsterindustrie-Maschinen GmbH Stacking device for loads, particularly mattresses
WO2007085243A2 (en) * 2006-01-30 2007-08-02 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Parking platform for motor vehicles
WO2007085243A3 (en) * 2006-01-30 2007-11-01 Maha Gmbh & Co Kg Parking platform for motor vehicles
US7997387B2 (en) 2006-01-30 2011-08-16 Maha Maschinenbau Haldenwang Gmbh & Co. Kg Parking platform for motor vehicles
CN104030189A (en) * 2014-06-16 2014-09-10 苏州经贸职业技术学院 Variable-height portable lifter
CN104030189B (en) * 2014-06-16 2016-03-23 苏州经贸职业技术学院 A kind of And of Varying Depth hand-held design elevator
CN104261233A (en) * 2014-08-28 2015-01-07 苏州美罗升降机械有限公司 Lifter

Also Published As

Publication number Publication date
EP1009707A1 (en) 2000-06-21
FI963987A0 (en) 1996-10-04
FI101285B (en) 1998-05-29
CA2267215A1 (en) 1998-04-16
FI101285B1 (en) 1998-05-29

Similar Documents

Publication Publication Date Title
EP1260480B1 (en) Elevating platform assembly
EP0755475B1 (en) Method and device for installing light-weight panel units
JP2005201010A (en) Elevator type parking device
KR100978170B1 (en) Integrated support for elevator machine, sheaves and terminations
US6042047A (en) Unwinder device for reels
EP1009707A1 (en) Lifting apparatus
CN208683967U (en) Adobe automatic docking device
ATE188943T1 (en) CONTROL FOR THE STACKING LIFT DRIVE OF A SHEET PROCESSING MACHINE
US5024577A (en) Paper arranging system
CN113073561A (en) Bridge prestressing force is high-efficient rigging equipment for tensioning equipment
US7191874B2 (en) Carrying apparatus
CN108861631A (en) Adobe automatic docking device
EP0799784A3 (en) Pile lifting drive for a sheet processing machine
KR20030006277A (en) Stacker crane
CN213504302U (en) Transmission device
JP3620029B2 (en) Conveying equipment and installation method of conveying equipment
CN221193434U (en) Pipe gallery construction protector
JP3364478B2 (en) lift device
KR101880044B1 (en) Easy-to-install elevator stage
JPH10182084A (en) Motor-driven lift device
KR0132774Y1 (en) Loading system of assembling meterial
KR200235862Y1 (en) The transportation device for mono rail which has lift
JPH0543025Y2 (en)
KR200261074Y1 (en) The automatic belt-cushion let-off device
RU2060214C1 (en) Vertically closed conveyor

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CA US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 1997942977

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 09269475

Country of ref document: US

ENP Entry into the national phase

Ref document number: 2267215

Country of ref document: CA

Ref country code: CA

Ref document number: 2267215

Kind code of ref document: A

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 1997942977

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1997942977

Country of ref document: EP