EP0924156A2 - Elevator with onboard driving means - Google Patents
Elevator with onboard driving means Download PDFInfo
- Publication number
- EP0924156A2 EP0924156A2 EP98123114A EP98123114A EP0924156A2 EP 0924156 A2 EP0924156 A2 EP 0924156A2 EP 98123114 A EP98123114 A EP 98123114A EP 98123114 A EP98123114 A EP 98123114A EP 0924156 A2 EP0924156 A2 EP 0924156A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- elevator
- civil
- specifically designed
- industrial applications
- coupled
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0035—Arrangement of driving gear, e.g. location or support
- B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
- B66B11/005—Arrangement of driving gear, e.g. location or support in the hoistway on the car
Definitions
- the present invention relates to an improved elevator, specifically designed for civil and industrial applications.
- an elevator or loading lowering and raising shaft comprising a plurality of ports defining the access openings at each store, a bottom end called pit as well as a top end called head, and an elevator cabin sliding on suitable sliding guides inside the elevator shaft, a gear and pulley system, as well as a machine or apparatus room, suitably arranged depending on the elevator design, and including the driving motor assembly, a control panel as well as the required electric wiring.
- a push-button panel arranged inside the cabin allows to control the elevator cabin or load raising and lowering device up to the desired store.
- the aim of the present invention is to overcome the above mentioned drawbacks of the prior art elevators.
- the invention relates to an improved elevator, specifically designed for civil and industrial applications, of novel and simple construction, allowing a great saving to be achieved, as well as having a small size, together with a high reliability and a very good comfort for the users.
- an improved elevator specifically designed for civil and industrial applications, comprising electric power supply means, load supporting means, sliding guides operatively coupled to said load supporting means and load raising and lowering means, wherein said load raising and lowering means comprise a driving assembly rigid with said load supporting means and operatively coupled to said electric power supply means.
- the improved elevator specifically designed for civil and industrial applications according to the invention is characterized in that it has the characterizing features of Claim 1.
- the improved elevator specifically designed for civil and industrial applications according to the invention provides the following advantages.
- the making and operation costs thereof are small, due to a great reduction of its size and, moreover, it may be designed in a much more simple manner and with a less driving power.
- it is possible to omit the machine room, with a consequent saving of the related cost.
- the elevator according to the invention is much more simple than prior elevators, both of a counterweight type and of a hydraulic type.
- the required driving power is less than that required by a prior hydraulic elevator, and this due to the specific inventive construction.
- a further advantage is that it is possible to carry out emergency operations to arrive at the nearest floor, directly from the elevator cabin; thus, no outside operator is required for performing emergency operations.
- the improved elevator specifically designed for civil and industrial applications, comprises a shaft 2 including a plurality of openings 3, defining the floor apertures or ports.
- said shaft a plurality of vertical sliding guides are provided, said guides connecting an elevator cab 4 for its translation displacement.
- Said elevator cab 4 is provided with known electric power supply connecting means, a push-button panel, a light indicator assembly, inner lamps and inner automatic or manual doors, of any known type, which will be opened synchronously with the corresponding outer doors installed at the several apertures 3 of each floor.
- a driving assembly 5 Under the elevator can 4 a driving assembly 5 is provided, the driving motor of said assembly being specifically adapted to be controlled in its speed, by an inverter of the "VVVF" type, which is well known in the prior art.
- the driving motor is operatively coupled, through suitable speed reducing means, to a winch 6 which is coupled by a rope 7 to a pair of pulleys 8 as well as to a further pulley 10 rigid with a counterweight 9, preferably in a size ratio 1:2.
- a driving lever not shown, which is operatively coupled to the brake assembly of said elevator cab, in order to carry out possible manual braking emergency operations, as it will be disclosed in a more detailed manner hereinafter.
- the ends of the mentioned rope 7 are both connected to the top of the cross member of the elevator shaft 2, at two discrete points 11 and 12.
- the rope 7, having its first end coupled at said point 11, is downward vertically directed, and entrained on the winch drum 6 for about 180°, and then it is vertically upwardly directed up to the pulleys 8, therefrom it is directed toward the pulley 10 of the counterweight 9. After having been entrained on said pulley 10 for about 180°, it will be upwardly directed again to be connected on the top cross member of the elevator shaft 2 at the connecting point 12.
- the rope 7 coming from the top will be entrained through about 180° on the drum of the winch 6, rigid with the elevator cab 4, and then said rope will be entrained through about 180° on a pulley rigid with the elevator cab 4, having its rotary axis parallel to the rotary axis of the winch 6 and lying on the same vertical plane, and finally being further downward directed to be fixed to the bottom end of said beam arrangement, by the above mentioned rod.
- the counterweight would be not constitute an essential component, even if it could be provided coupled to the elevator cab 4 by a further rope and a plurality of coupling pulleys in order to reduce the working load on the driving motor.
- the driving or motor assembly 5 as controlled by the push-button panel provided in the elevator cab 4, will actuate the winch 6 to operate the rope 7. Owing to the specifically designed rope 7 - pulley 8, 10 arrangement, and since the elevator cab 4 is connected to the driving assembly 5, the elevator cab 4 will be driven in the desired direction with a speed equal to the peripheral speed of the winch 6, whereas the counterweight 9 will be displaced in an opposite direction.
- the upward or downward displacement of the elevator cab 4 will be very accurate and noiseless, due to the provision of the "VVVF" type of inverter, as previously mentioned, provided for controlling the rotary speed of the motor.
- the elevator cab 4 is displaced along a rope, while sliding on its vertical guides, and holding a displacement speed equal to the peripheral speed of the winch 6.
- a possible counterweight provided in this embodiment will reduce the operating load on the driving or motor assembly 5.
- the user can, in both cases, operate a suitable dedicated operating lever provided on the bottom of the cab 4, to open the brake jaws.
- the winch 6 will be rotated, thereby the elevator cab will be raised or lowered depending on the equilibrium conditions of the possibly present counterweight. In the absence of any counterweight, the elevator cab will be lowered to the nearest floor.
- a suitable light indicator will indicate, in each case, the arriving of the elevator cab at the nearest floor, thereby signalling the success of the operation.
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Types And Forms Of Lifts (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Biological Depolymerization Polymers (AREA)
- Catalysts (AREA)
Abstract
Description
- The present invention relates to an improved elevator, specifically designed for civil and industrial applications.
- In the building construction field in general, the technical problem of vertically raising loads have been already solved by using elevators and load raising assemblies of different constructions, for achieving different objects.
- In this connection it should be apparent that a load raising device would involve to solve problems which are very different from those which must be solved for designing person elevators in a very high building.
- However, in each type of solution, it would be possible to identify some common elements. Actually, is always generally provided an elevator or loading lowering and raising shaft comprising a plurality of ports defining the access openings at each store, a bottom end called pit as well as a top end called head, and an elevator cabin sliding on suitable sliding guides inside the elevator shaft, a gear and pulley system, as well as a machine or apparatus room, suitably arranged depending on the elevator design, and including the driving motor assembly, a control panel as well as the required electric wiring.
- A push-button panel arranged inside the cabin allows to control the elevator cabin or load raising and lowering device up to the desired store.
- These prior elevators, while solving the mentioned technical problem, are however affected by the following disadvantages.
- Their making and operation costs are comparatively high, both due to the requirement of meeting safety and maintenance rules, and because of the additional requirement of providing, as mentioned, a machine room provided for housing some main components, such as the driving motor.
- In the case of a black-out or of a failure, a user of a prior elevator can not reach the nearest floor, by performing an emergency operation directly from the elevator cabin, but it is always necessary the intervention of an outer operator.
- Moreover, the operation comfort is frequently poor, because of the provision of not optimally designed speed controlling devices, which do not provide an optimum comfort for the elevator passengers, in particular on comparatively extended displacement movements of the elevator cabin.
- Accordingly, the aim of the present invention is to overcome the above mentioned drawbacks of the prior art elevators.
- To that end, the invention relates to an improved elevator, specifically designed for civil and industrial applications, of novel and simple construction, allowing a great saving to be achieved, as well as having a small size, together with a high reliability and a very good comfort for the users.
- Briefly, according to the invention, the above mentioned aim has been achieved by an improved elevator specifically designed for civil and industrial applications, comprising electric power supply means, load supporting means, sliding guides operatively coupled to said load supporting means and load raising and lowering means, wherein said load raising and lowering means comprise a driving assembly rigid with said load supporting means and operatively coupled to said electric power supply means.
- The improved elevator specifically designed for civil and industrial applications according to the invention, is characterized in that it has the characterizing features of
Claim 1. - The improved elevator specifically designed for civil and industrial applications according to the invention provides the following advantages.
- The making and operation costs thereof are small, due to a great reduction of its size and, moreover, it may be designed in a much more simple manner and with a less driving power. In particular, owing to the solution proposed by the invention, it is possible to omit the machine room, with a consequent saving of the related cost.
- The elevator according to the invention is much more simple than prior elevators, both of a counterweight type and of a hydraulic type.
- The required driving power, moreover, is less than that required by a prior hydraulic elevator, and this due to the specific inventive construction.
- A further advantage is that it is possible to carry out emergency operations to arrive at the nearest floor, directly from the elevator cabin; thus, no outside operator is required for performing emergency operations.
- Finally, due to the provision of specifically designed speed control means, the driving comfort in the elevator cabin will be very high, and much greater than that of prior elevators.
- Further characteristics, advantages and details of the improved elevator specifically designed for civil and industrial applications according to the invention will become more apparent hereinafter from the following disclosure with reference to the accompanying drawing, illustrating, by way of an indicative but not limitative example, a preferred embodiment of the invention.
- In the drawing:
- Figure 1 is a vertical cross-sectioned view of the improved elevator specifically designed for civil and industrial applications according to the invention.
-
- With reference to the number references of the mentioned drawing figure, the improved
elevator 1, specifically designed for civil and industrial applications, comprises ashaft 2 including a plurality ofopenings 3, defining the floor apertures or ports. - In said shaft a plurality of vertical sliding guides are provided, said guides connecting an
elevator cab 4 for its translation displacement. - Said
elevator cab 4 is provided with known electric power supply connecting means, a push-button panel, a light indicator assembly, inner lamps and inner automatic or manual doors, of any known type, which will be opened synchronously with the corresponding outer doors installed at theseveral apertures 3 of each floor. - Under the elevator can 4 a driving assembly 5 is provided, the driving motor of said assembly being specifically adapted to be controlled in its speed, by an inverter of the "VVVF" type, which is well known in the prior art.
- The driving motor is operatively coupled, through suitable speed reducing means, to a
winch 6 which is coupled by a rope 7 to a pair of pulleys 8 as well as to afurther pulley 10 rigid with acounterweight 9, preferably in a size ratio 1:2. - On the bottom of the
elevator cab 4 is moreover provided a driving lever, not shown, which is operatively coupled to the brake assembly of said elevator cab, in order to carry out possible manual braking emergency operations, as it will be disclosed in a more detailed manner hereinafter. - The ends of the mentioned rope 7 are both connected to the top of the cross member of the
elevator shaft 2, at twodiscrete points - More specifically, the rope 7, having its first end coupled at said
point 11, is downward vertically directed, and entrained on thewinch drum 6 for about 180°, and then it is vertically upwardly directed up to the pulleys 8, therefrom it is directed toward thepulley 10 of thecounterweight 9. After having been entrained on saidpulley 10 for about 180°, it will be upwardly directed again to be connected on the top cross member of theelevator shaft 2 at the connectingpoint 12. - Alternately, it would be possible to omit the counterweight, and connect differently the end portions of the rope 7: one to the bottom end of the
elevator shaft 2 beam, by pivot connecting it to a rod including a counterweight in order to hold said rope under tension, and the other to the top end of the same beam arrangement. - In this case, the rope 7 coming from the top will be entrained through about 180° on the drum of the
winch 6, rigid with theelevator cab 4, and then said rope will be entrained through about 180° on a pulley rigid with theelevator cab 4, having its rotary axis parallel to the rotary axis of thewinch 6 and lying on the same vertical plane, and finally being further downward directed to be fixed to the bottom end of said beam arrangement, by the above mentioned rod. - In this second arrangement, the counterweight would be not constitute an essential component, even if it could be provided coupled to the
elevator cab 4 by a further rope and a plurality of coupling pulleys in order to reduce the working load on the driving motor. - In this connection it should be apparent that the size and shape of the several elements forming the improved elevator specifically designed for civil and industrial application according to the invention can be changed according to requirements, without departing from the invention scope.
- The operation of the
elevator 1 according to the invention can be easily deduced from the preceding disclosure. - In fact, the driving or motor assembly 5, as controlled by the push-button panel provided in the
elevator cab 4, will actuate thewinch 6 to operate the rope 7. Owing to the specifically designed rope 7 -pulley 8, 10 arrangement, and since theelevator cab 4 is connected to the driving assembly 5, theelevator cab 4 will be driven in the desired direction with a speed equal to the peripheral speed of thewinch 6, whereas thecounterweight 9 will be displaced in an opposite direction. - Moreover, the upward or downward displacement of the
elevator cab 4 will be very accurate and noiseless, due to the provision of the "VVVF" type of inverter, as previously mentioned, provided for controlling the rotary speed of the motor. - In the second disclosed embodiment only the used kinematic mechanism is changed: in this case too, the
elevator cab 4 is displaced along a rope, while sliding on its vertical guides, and holding a displacement speed equal to the peripheral speed of thewinch 6. A possible counterweight provided in this embodiment will reduce the operating load on the driving or motor assembly 5. - In the case of a failure or a black-out, the user can, in both cases, operate a suitable dedicated operating lever provided on the bottom of the
cab 4, to open the brake jaws. - In this case the
winch 6 will be rotated, thereby the elevator cab will be raised or lowered depending on the equilibrium conditions of the possibly present counterweight. In the absence of any counterweight, the elevator cab will be lowered to the nearest floor. - A suitable light indicator will indicate, in each case, the arriving of the elevator cab at the nearest floor, thereby signalling the success of the operation.
Claims (7)
- An improved elevator, specifically designed for civil and industrial applications, comprising electric power supplying means, load supporting means, vertical sliding guides operatively coupled to said load supporting means, and load raising and lowering means, characterized in that said load raising and lowering means comprise a driving assembly (5) rigid with said load supporting means and operatively coupled to said electric power supply means.
- An improved elevator, specifically designed for civil and industrial applications, according to Claim 1, characterized in that said driving assembly (5) is coupled to a motion transmitting winch (6).
- An improved elevator, specifically designed for civil and industrial applications, according to the preceding claims, characterized in that said load supporting means comprise an elevator cab (4), coupled to said sliding guides in order to vertically slide inside a shaft (2) of said elevator (1), said elevator cab (4) comprising at least a push-button panel and an indicating device assembly for controlling said elevator (1), as well as an operating lever operatively coupled to a brake assembly in order to carry out emergency operations.
- An improved elevator, specifically designed for civil and industrial applications, according to the preceding claims, characterized in that said load raising and lowering means comprise at least a rope (7), the ends thereof are connected at two discrete points (11, 12) to the top beam arrangement of said shaft (2), said rope (7) being entrained about said winch (6), a pair of transmission pulleys (8) and finally a further pulley (10) connected to a counterweight (9), wherein the rotary axes of said winch (6) and pulleys (8, 10) are parallel to one another and lie on a same plane.
- An improved elevator, specifically designed for civil and industrial applications, according to the preceding claims, characterized in that said load raising and lowering means comprise a rope the end portions thereof are coupled one on the top beam arrangement and the other on the bottom beam arrangement of said shaft (2), said rope being entrained about the drum of the winch (6) and on a further pulley also coupled to said elevator cab (4) and having the rotary axis thereof parallel to the axis of the winch (6) and lying on the same vertical plane.
- An improved elevator, specifically designed for civil and industrial applications, according to the preceding claims, characterized in that said rope is coupled to said bottom beam arrangement of said shaft (2) by a rod pivoted to said bottom beam arrangement and operatively coupled to a counterweight.
- An improved elevator, specifically designed for civil and industrial applications, according to the preceding claims, characterized in that a counterweight is coupled to said elevator cab (4) by a further rope and a further plurality of pulleys.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI972725 IT1296850B1 (en) | 1997-12-09 | 1997-12-09 | PERFECTLY LIFT PARTICULARLY SUITABLE FOR CIVIL AND INDUSTRIAL USES |
ITMI972725 | 1997-12-09 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0924156A2 true EP0924156A2 (en) | 1999-06-23 |
EP0924156A3 EP0924156A3 (en) | 2001-09-26 |
EP0924156B1 EP0924156B1 (en) | 2004-10-06 |
Family
ID=11378340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98123114A Expired - Lifetime EP0924156B1 (en) | 1997-12-09 | 1998-12-04 | Elevator with onboard driving means |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0924156B1 (en) |
DE (1) | DE69826819T2 (en) |
ES (1) | ES2230650T3 (en) |
IT (1) | IT1296850B1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001026388A (en) * | 1999-07-15 | 2001-01-30 | Mitsubishi Electric Corp | Self-propelled elevator device |
WO2002057172A1 (en) * | 2001-01-19 | 2002-07-25 | Emile Kadoche | Powering system integrated beneath a lift cage |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR326895A (en) * | 1902-12-02 | 1903-06-09 | Hiss Nelson | Advanced traction device |
GB382107A (en) * | 1931-11-30 | 1932-10-20 | Carmelo Bocchieri | Improvements in elevators |
US4434875A (en) * | 1981-05-12 | 1984-03-06 | Sergio Scarzella | Emergency levelling device for a lift car |
EP0198249A1 (en) * | 1985-04-17 | 1986-10-22 | Arnold Müller GmbH & Co. KG | AC control drive, in particular for a lift |
FR2640604A1 (en) * | 1988-12-15 | 1990-06-22 | Otis Elevator Co | Lift with an on-board adhesion-type drive machine |
EP0565516A1 (en) * | 1992-04-09 | 1993-10-13 | Werner Mag. Dr. Hagel | Elevator |
-
1997
- 1997-12-09 IT ITMI972725 patent/IT1296850B1/en active IP Right Grant
-
1998
- 1998-12-04 ES ES98123114T patent/ES2230650T3/en not_active Expired - Lifetime
- 1998-12-04 DE DE1998626819 patent/DE69826819T2/en not_active Expired - Fee Related
- 1998-12-04 EP EP98123114A patent/EP0924156B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR326895A (en) * | 1902-12-02 | 1903-06-09 | Hiss Nelson | Advanced traction device |
GB382107A (en) * | 1931-11-30 | 1932-10-20 | Carmelo Bocchieri | Improvements in elevators |
US4434875A (en) * | 1981-05-12 | 1984-03-06 | Sergio Scarzella | Emergency levelling device for a lift car |
EP0198249A1 (en) * | 1985-04-17 | 1986-10-22 | Arnold Müller GmbH & Co. KG | AC control drive, in particular for a lift |
FR2640604A1 (en) * | 1988-12-15 | 1990-06-22 | Otis Elevator Co | Lift with an on-board adhesion-type drive machine |
EP0565516A1 (en) * | 1992-04-09 | 1993-10-13 | Werner Mag. Dr. Hagel | Elevator |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001026388A (en) * | 1999-07-15 | 2001-01-30 | Mitsubishi Electric Corp | Self-propelled elevator device |
WO2002057172A1 (en) * | 2001-01-19 | 2002-07-25 | Emile Kadoche | Powering system integrated beneath a lift cage |
FR2819796A1 (en) * | 2001-01-19 | 2002-07-26 | Emile Kadoche | MOTORIZATION ON BOARD UNDER AN ELEVATOR CAB |
Also Published As
Publication number | Publication date |
---|---|
DE69826819D1 (en) | 2004-11-11 |
IT1296850B1 (en) | 1999-08-02 |
DE69826819T2 (en) | 2005-09-22 |
ES2230650T3 (en) | 2005-05-01 |
EP0924156A3 (en) | 2001-09-26 |
EP0924156B1 (en) | 2004-10-06 |
ITMI972725A1 (en) | 1999-06-09 |
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