With Projections Or Apertures For Engaging Complementary Formations On Cable (e.g., Sprocket) Patents (Class 187/255)
  • Patent number: 10252889
    Abstract: A method for installing an elevator drive machine in a machine room-less elevator system is provided. A drive machine assembly is fastened to a counterweight. The counterweight is then lifted vertically along a set of counterweight guide rails to the top of the hoistway. There, the drive machine assembly is mounted to the ends of the counterweight guide rails. Once in place, the drive machine assembly is then disconnected from the counterweight.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: April 9, 2019
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Gilles Bruno, Jacques Greuin, Fabrice Hamon, Michael John Barton, Jean-Louis Goussot, Uwe Lassen
  • Patent number: 10183840
    Abstract: A vertical lift conveyor for lifting materials between different vertical levels. The vertical lift conveyor includes a pair of spaced uprights and a carriage that moves vertically along the spaced uprights. The vertical lift conveyor includes a drive assembly including a drive motor coupled to a drive shaft. Each end of the drive shaft includes a first sprocket and a second sprocket that each engages one of a pair of lift chains. The first and second sprockets each include a plurality of teeth (N). The first and second sprockets are offset from each other 180/N°. The offset between the first and sprockets creates sinusoidal velocity profiles for the two chains that are out of phase with each other. A connection block is used to connect the pair of lift chains to each side of the carriage combines the lift chain velocities into a linear vertical velocity for the carriage.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: January 22, 2019
    Assignee: Pflow Industries, Inc.
    Inventor: Mark R. Webster
  • Patent number: 10167145
    Abstract: A receptacle exchange for a pick or put receptacle and method for exchanging a pick or put receptacle includes a process location at which an operator processes a receptacle by picking articles from or putting articles to a receptacle. A lift moves a receptacle from a supply location to the process location. An extractor retrieves a receptacle from the process location to an extracted location. A first drive elevates the lift between the supply location and process location and moves the extractor between the process location and extracted location. A second drive moves an inclination of the extractor. A control controls the first and second drives.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: January 1, 2019
    Assignee: Dematic Corp.
    Inventors: David L. Spaulding, Robert C. Sciog
  • Patent number: 10150626
    Abstract: A goods to operator workstation is attachable to an input and a discharge conveyor system. The goods to operator workstation comprises a container staging platform that receives a product container from the input conveyor system and linearly moves the product container to an order pick position for an operator to pick articles from. A holding platform is pivotally movable between the order pick position and a discharge position to discharge a picked order container onto the discharge conveyor system after picking. Wherein when the holding platform moves back to the order pick position, the holding platform passes through the staging platform to transfer the order container from the staging platform to the holding platform so that the staging platform can retract and receive a new order container from the input conveyor system while the operator is picking.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: December 11, 2018
    Assignee: INTELLIGRATED HEADQUARTERS, LLC
    Inventor: Brett Logan Eisenberg
  • Patent number: 9938090
    Abstract: A container raising/lowering conveyance apparatus has at least two lifting raising/lowering bodies corresponding respectively to two parallel side surfaces of an article-conveyance container are capable of being raised and lowered, and moved closer to and away from each other. Support units are attached to each of the lifting raising/lowering bodies and pairs of pin-shaped supporting implements in the support units protrude towards the container side at symmetrical positions at both sides of a vertical center line of each of the two parallel side surfaces of the container are arranged and supported at suitable intervals in a vertical direction. Each pin-shaped supporting implement is capable of extending and retracting, and is impelled into and held in a protruded position by a spring. Pairs of pin-shaped supporting implements having a narrow interval therebetween and pairs of pin-shaped supporting implements having a broad interval therebetween are arranged alternately in the vertical direction.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 10, 2018
    Assignee: Daifuku Co., Ltd.
    Inventors: Hisashi Kyotani, Kazuki Ogawa
  • Patent number: 8915333
    Abstract: An elevator comprising a cabin (1), vertical guide elements (2, 3) for guiding said cabin, at least one suspension or support belt (4, 5), groups of pulleys associated to the guide elements and the cabin; each of said groups of pulleys is composed of at least two coplanar pulleys arranged on parallel axles and vertically one above the other; each of the groups of pulleys comprises pulleys having a diameter decreasing from a pulley of a maximum diameter to a pulley of a minimum diameter. Preferred embodiments of the belts having one or two concave or convex surfaces and internal reinforcing wires are disclosed.
    Type: Grant
    Filed: September 23, 2009
    Date of Patent: December 23, 2014
    Assignee: KONE Corporation
    Inventor: Marco Hoerler
  • Patent number: 8794387
    Abstract: A traction system includes a composite rope (1), especially for an elevator. The composite rope (1) is driveable by a traction sheave (6). The traction system has a composite rope that is easy to handle, whereby high traction forces can be transferred, and the composite rope enables a narrower drive unit than known belt technology. To this end, the composite rope has parallel individual tension members (4) surrounded by an elastomer material which are interconnected by an elastomer connecting layer (5) on one side, and the tension members (4) engage in corresponding grooves (7) of the traction sheave (6). The penetration depth of the individual ropes (2) of the tension members (4) in the grooves of the traction sheave (6) is at least 25% of the diameter (d) of the individual ropes (2).
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: August 5, 2014
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Patent number: 8789658
    Abstract: A traction device includes tension members (2) coated with an elastomer material to form jacketed tension members (3). The jacketed tension members (3) are arranged next to each other in a plane in the cross section of the traction device, at such a distance from each other that there is a clear space (6) between each two mutually adjacent ones of the jacketed tension members (3). The jacketed tension members (3) are connected at the back thereof by a back layer. The clear space (6) begins on the side facing away from the back layer (4) and extends at least beyond the center point (5) of the tension member, and the ratio of the second diameter (d2) of the jacketed tension member (3) in relation to the first diameter (d1) of the tension member (2) is between 1.05 and 2.25.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: July 29, 2014
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Patent number: 8550216
    Abstract: An elevator installation is provided that includes an elevator cage, a drive pulley, at least one support means formed as a flat belt, and a drive engine which drives the at least one support means, which carries the elevator cage, by way of the drive pulley. In the elevator installation, the support means has, at least on a running surface facing the drive pulley, several ribs of wedge-shaped or trapezium-shaped cross-section which extend parallel in a longitudinal direction of the support means and further has several tensile carriers oriented in the longitudinal direction of the support means. The tensile carriers are sized so that a total cross-sectional area of all the tensile carriers amounts to 30%-40% of a cross-sectional area of the support means. The tensile carriers may be distributed in a transverse direction of the support means so that exactly two tensile carriers are associated with each of the ribs, the tensile carriers having an outer diameter equal to 35%-40% of a rib spacing (T).
    Type: Grant
    Filed: March 12, 2009
    Date of Patent: October 8, 2013
    Assignee: Inventio AG
    Inventor: Ernst Ach
  • Patent number: 8479888
    Abstract: The invention relates to a traction device (1), especially for an elevator system. The traction device (1) is driveable by a traction sheave. The task which is the basis of the invention is to provide a traction device which is simple to manipulate. High tension forces are transferable and the traction device makes possible a drive unit of lesser width compared to the known belt technology. For this purpose, the traction device is configured as a composite rope (1) wherein individual tension carriers (2, 3) are connected to each other via a one-sided elastomer connecting layer (4). The individual tension carriers (2, 3) lie in parallel and are jacketed with elastomeric material. The tension carriers (2, 3) engage in corresponding grooves (13) of the traction sheave (10). The tension carriers (2, 3) engage in the grooves (13) of the traction sheave (10) with at least 25% of their total diameter.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: July 9, 2013
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Publication number: 20130056305
    Abstract: An elevator has deflecting pulleys above or below a car, fastenings for securing the ends of a cogged belt disposed in an upper portion of a hoistway. A machine is formed by a gearless motor on the shaft of which are assembled at least one cogged pulley made of a single part with helical cogs and with a diameter greater than 100 mm. The machine has a support, a brake, an integrated deflecting pulley, and non-slip rollers, all of these elements being mounted on a base. The machine is in a projection of a counterweight. The counterweight is disposed at a side of the hoistway. The cogged belt has steel reinforcement cables embedded in transparent polyurethane and the cogged portion is covered with a textile mesh. This configuration achieves a reduction of noise level and uniform translation of the car.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 7, 2013
    Inventors: Jose Luis Blanco Sanchez, Borislav Zvetkov Martinov
  • Publication number: 20130056304
    Abstract: An elevator without a counterweight and with a cogged belt and pulley has deflecting pulleys arranged above and below the car, respectively. In the upper portion of the hoistway there is, on one hand, a hanger for the cogged belt and, on the other hand, a machine having a cogged driving pulley. In the lower portion of the hoistway, there is a tensioner associated with a deflecting pulley. Another deflecting pulley is provided. The pulley has a diameter greater than 100 mm, is made of a single part, and has helical cogs. The machine has an associated deflecting pulley and non-slip rollers. The cogged belt is made of transparent polyurethane and a textile mesh covering the cogged portion. In addition to a uniform and well balanced translation of the car, an effective reduction of noise levels is achieved.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 7, 2013
    Inventors: Jose Luis Blanco Sanchez, Borislav Tzvetkov Martinov
  • Patent number: 8348019
    Abstract: In an elevator element for driving or reversing an elevator suspension device in an elevator system, that interacts with an elevator suspension device, the arithmetic mean of the roughness value of the contact surface measured in the circumferential direction of the elevator element, and the mean roughness value of the contact surface measured in the axial direction of the elevator element, are different. The arithmetic mean roughness value of the contact surface measured in the circumferential direction of the elevator element is less than 1 micrometer.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: January 8, 2013
    Assignee: Inventio AG
    Inventors: Hans Blochle, Ernst Ach
  • Patent number: 8336675
    Abstract: An elevator with belt-sheaves and at least one flat belt to suspend and move an elevator car. For the purpose of guiding the flat belt on the belt-sheaves, the belt has at least one guide groove in which at least one guide rib projecting from the sheave running surface of the belt-sheave engages.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: December 25, 2012
    Assignee: Inventio AG
    Inventors: Ernst Ach, Martin Rogger
  • Publication number: 20120103730
    Abstract: An elevator comprising a cabin (1), vertical guide elements (2, 3) for guiding said cabin, at least one suspension or support belt (4, 5), groups of pulleys associated to the guide elements and the cabin; each of said groups of pulleys is composed of at least two coplanar pulleys arranged on parallel axles and vertically one above the other; each of the groups of pulleys comprises pulleys having a diameter decreasing from a pulley of a maximum diameter to a pulley of a minimum diameter. Preferred embodiments of the belts having one or two concave or convex surfaces and internal reinforcing wires are disclosed.
    Type: Application
    Filed: September 23, 2009
    Publication date: May 3, 2012
    Inventor: Marco Hoerler
  • Publication number: 20120037460
    Abstract: A drive sheave for driving at least one traction device of an elevator system, including at least one traction area in which recesses are formed, which recesses extend substantially perpendicular to a circumferential direction of the drive sheave in the form of grooves, wherein the drive sheave is formed by a one-piece drive sheave body having the at least one traction area, and the grooves extend in the drive sheave body.
    Type: Application
    Filed: January 18, 2010
    Publication date: February 16, 2012
    Applicant: INVENTIO AG
    Inventor: Volker Zaph
  • Publication number: 20110278097
    Abstract: A shaft element for a shaft of an elevator system comprising a longitudinal strand element and a connection to a shaft, wherein the shaft element is divided into a plurality of partitions to each of which a function is assigned is presented.
    Type: Application
    Filed: November 15, 2010
    Publication date: November 17, 2011
    Applicant: ThyssenKrupp Elevator AG
    Inventors: Stefan Altenburger, Markus Hanle
  • Patent number: 7926649
    Abstract: A flat belt (2), which is made of elastomeric material (46a, 46b), is made up of a first partial belt (2a) and a second partial belt (2b). The first partial belt (2a) is reinforced with a reinforcement layer (4) made up of cords. A layer separation which is to be feared theoretically is to be reliably avoided and the bonding of the belt material to the reinforcement layer (4) is to be optimized. The first belt part (2a) is provided with slots (44) with the aid of mold drum winding-projections (42); the second belt part (2b) defines a filling of the slots (44) of the first belt part (2a). Preferably, the reinforcement layer (4) is positioned centrally in the neutral bending plane of the finished flat belt (2). The first belt part (2a) and the second belt part (2b) can be made of different elastomeric materials (46a, 46b). Also, at least one of the two surfaces of the belt (2) can be coated and/or provided with a longitudinal profile or transverse profile.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: April 19, 2011
    Assignee: ContiTech Antriebssysteme GmbH
    Inventor: Hubert Göser
  • Publication number: 20100044158
    Abstract: The invention relates to a traction device (1), especially for an elevator system. The traction device (1) is driveable by a traction sheave. The task which is the basis of the invention is to provide a traction device which is simple to manipulate. High tension forces are transferable and the traction device makes possible a drive unit of lesser width compared to the known belt technology. For this purpose, the traction device is configured as a composite rope (1) wherein individual tension carriers (2, 3) are connected to each other via a one-sided elastomer connecting layer (4). The individual tension carriers (2, 3) lie in parallel and are jacketed with elastomeric material. The tension carriers (2, 3) engage in corresponding grooves (13) of the traction sheave (10). The tension carriers (2, 3) engage in the grooves (13) of the traction sheave (10) with at least 25% of their total diameter.
    Type: Application
    Filed: October 30, 2009
    Publication date: February 25, 2010
    Inventor: Hubert Göser
  • Publication number: 20090321191
    Abstract: An improved pre-assembled drive mechanism is disclosed for a lifting device of the type having a container movable upwardly and downwardly on spaced apart guide rails. A generally cylindrical motorized tooth drive having a plurality of drive teeth on an outer cylindrical wall is provided. The drive teeth are adapted to be received by spaces between the teeth of the drive belt. A belt guide roller is mounted in close proximity upstream to the drive pulley. The belt guide roller is provided to maintain proper alignment of the toothed belt relative to the drive pulley and to retrain the lateral movement of the toothed belt portion. A direction reversing idler pulley is adapted to receive and guide the toothed belt in a manner such that the toothed belt portion stays in driving engagement with the drive pulley for a substantial distance around the drive pulleys rotational path of travel.
    Type: Application
    Filed: July 8, 2009
    Publication date: December 31, 2009
    Inventor: Frederick Kenneth Broyan
  • Patent number: 7624846
    Abstract: An elevator system includes at least one drive with at least one drive pulley, an elevator car and at least one counterweight as well as flat-belt-like support for the car and the counterweight. The elevator car and the counterweight have at least one support roller. The flat-belt-like support means together with the drive pulley and the support rollers form at least one 2:1 suspension system for the car and the counterweight. The flat-belt-like support can be a wedge-ribbed belt or a cogged belt.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: December 1, 2009
    Assignee: Inventio AG
    Inventor: Ernst Friedrich Ach
  • Patent number: 7367430
    Abstract: A wedge-ribbed belt supports an elevator car in a cantilevered mode and engages a drive pulley of a drive mounted at the head of an elevator shaft. The belt has a running surface facing the drive pulley with a plurality of ribs and grooves extending in parallel in a longitudinal direction of the belt. The ribs and grooves can be triangular-shaped or trapezium-shaped in cross section. A plane of the drive pulley is arranged vertically and at right angles to a car wall at a counterweight side of the elevator car.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: May 6, 2008
    Assignee: Inventio AG
    Inventors: Ernst Friedrich Ach, Pablo Cruz Bello
  • Patent number: 7367431
    Abstract: A wedge-ribbed belt supports an elevator car by underlooping and engages a drive pulley of a drive mounted at the head of an elevator shaft. The belt has a running surface facing the drive pulley with a plurality of ribs and grooves extending in parallel in a longitudinal direction of the belt. The ribs and grooves can be triangular-shaped or trapezium-shaped in cross section. A plane of the drive pulley is arranged vertically and at right angles to a car wall at a counterweight side of the elevator car and approximately in a middle of a car depth with a vertical projection of the drive pulley onto the counterweight side being outside a vertical projection of the counterweight side. A part of a vertical projection of the drive motor is superimposed on the vertical projection of the counterweight side of the elevator car.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: May 6, 2008
    Assignee: Inventio AG
    Inventor: Ernst Friedrich Ach
  • Patent number: 6983826
    Abstract: An elevator drive belt, while applying a friction force thereto, drives an elevator rope which links an elevator cage and a counterweight together. A rubber hardness of the belt ranges from about 50 to 90 degrees of JIS-A hardness so as to suppress creep slip due to a shearing strain while the elevator is in operation. Even if the elevator cage and the counterweight are reduced in weight and the friction force to be applied to the elevator rope decreases due to the weight reduction, a friction force onto the elevator rope from the elevator drive belt compensates and guarantees a drive force of the elevator.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: January 10, 2006
    Assignee: Nitta Corporation
    Inventors: Atsuhito Wake, Yoshihiro Konishi, Kazuyuki Yuasa, Atsuro Ueno
  • Patent number: 6776263
    Abstract: The invention is directed to an elevator system for the vertical transport of payloads in an aircraft.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: August 17, 2004
    Assignee: ESW-Extel Systems Wedel Gesellschaft fuer Austruestung mbH
    Inventors: Stephan Gottlieb, Joachim Schmidt, Adolf Schreger
  • Publication number: 20030010575
    Abstract: An emergency moving device of an elevator includes a main moving gear and a reduction gear, both disposed on the top of the elevator car. Chains are passed under a respective one of several gears connected to shafts of the reduction gear. The chains are connected to a first connector, which is disposed above the car, and is connected to steel ropes of the car. When a breakdown of the elevator causes the car to stop between two of the floors, the passengers can control an emergency power supply to activate. A fall prevention member to free the carriage from the first connector for permitting the carriage to move down relative to the first connector; the emergency power also activates a braking switch of the main gear for same to turn in order to drive the reduction gear and the gears connected to the chains for lowering the car.
    Type: Application
    Filed: July 11, 2001
    Publication date: January 16, 2003
    Inventor: Yung-Hsin Chen
  • Patent number: 6474446
    Abstract: A cargo delivery vehicle has storage for multiple tiers, or levels, of cargo. The delivery vehicle includes a plurality of interior pallet elevators, at least one on either side of a center structural wall running parallel to the side walls. Specialized pallets are provided for use with the pallet elevators. The pallet elevators are powered by redundant hydraulic cylinders which drive four cross-shaft-linked chains to lift and lower the pallet support shelves. Compact rear access doors slide vertically to allow easy access for loading or unloading. Substantially continuous side access doors provide total exterior access to the lowermost tier of cargo by delivery vehicle personnel standing on the ground. Cargo stored at the upper tier may be positioned by an elevating means at the level of the lower tier for either rear loading or side retrieval purposes.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: November 5, 2002
    Inventors: Robert J. Greenlaw, Robert E. Greenlaw
  • Publication number: 20020139618
    Abstract: This mechanism is designed to provide motion and force while maintaining parallelism between a base structure and a movable structure. This is accomplished by opposed pairs of pivoting arms which are synchronized by a timing device which links an arm with the arm opposite to it and ensures that these arms move the same distance but in opposite directions. This mechanism will work in any spatial orientation. Applications of this mechanism include lift tables, adjustable work stations, vertically adjustable conveyors, and others.
    Type: Application
    Filed: April 2, 2001
    Publication date: October 3, 2002
    Inventor: Kevin J. Anibas
  • Patent number: 6283249
    Abstract: A combined stepped structure and lifting mechanism includes a base and a framework secured to the base, the framework having a pair of spaced apart vertical tubes rising upwardly from the base. A ladder is incorporated in the framework and a vertical track assembly is disposed between the vertical tubes and includes a pair of tubular members connected together. A trolley is rollably mounted for movement along one of the tubular members. A lifting tray assembly is connected for movement with the trolley. A drive system is operably connected to the trolley and driven by a DC motor and gearbox unit mounted to a bottom end of the vertical track assembly to selectively move the lifting tray assembly upwardly and downwardly along the vertical track assembly.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: September 4, 2001
    Assignee: EGA Products, Inc.
    Inventors: David T. Young, Scott E. Kaczor
  • Patent number: 5971108
    Abstract: A safety device for vertically moving load carrier is disclosed. It includes a vertical column, a retainer, a vertical safety rack, a pivot shaft, a safety detent pivotally fitted on the pivot shaft and a resilient member. When a flexible transmission belt disposed in the vertical column is in a normally sealedly installed state, the safety detent is positioned in a first position without contacting with the safety rack. While in case the transmission belt is accidentally broken and in a loosened state, the safety detent is forced by the resilient member and rotated to a second position in contact with the safety rack. In the second position, the engaging section of the safety detent is just engaged with a horizontal section of one tooth of the safety rack so that the retainer and the load carried thereby are kept stationary at a certain height without abruptly dropping down to cause accident.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: October 26, 1999
    Inventor: Kuo-Liang Yu
  • Patent number: 5921351
    Abstract: A passenger conveyor system, such as an elevator or shuttle system, includes a drive system formed from a plurality of sequentially connected belts driven by a machine. Each of the belts is engageable with a car to move the car along a portion of the path, and adjacent belts are interconnected by a transmission. In a particular embodiment, the passenger conveyor system includes a counterweight that is also engaged with the plurality of belts. In another particular embodiment, the passenger conveyor system includes a first portion in which the belt driven car moves vertically and a second portion in which the belt driven car moves horizontally.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: July 13, 1999
    Assignee: Otis Elevator Company
    Inventor: Helmut L. Schroder-Brumloop
  • Patent number: 5836423
    Abstract: A people mover system (110) comprising an elevated track (112) having a horizontal section (114) and vertical end sections (116, 118) and a passenger car (124) movably carried on track (112). Horizontal track section (114) is elevated above an intersection or roadway (140) a height sufficient to permit vehicular traffic to pass beneath car (124). A drive mechanism is provided extending along track (124) for propelling the passenger car in both vertical and horizontal directions between a first load/unload point (120) and a second load/unload point (122).
    Type: Grant
    Filed: November 4, 1996
    Date of Patent: November 17, 1998
    Inventor: Jan K. Kunczynski
  • Patent number: 5566783
    Abstract: An elevator system in an elevator shaft comprising a carriage movable vertically in the shaft, a counterweight suspended in the shaft on an opposite side of the carriage, upper wheels rotatably mounted at an upper end of the shaft, a suspended cable strung on the upper wheels having opposite ends, the opposite ends of the suspended cable being attached to the carriage and the counterweight respectively, a lower haulage cable strung around the lower wheels and having opposite ends, the opposite ends of lower haulage cable being joined to the carriage and the counterweight, respectively, and a driving unit operatively associated with one of the suspended cable and the lower haulage cable positioned at the bottom of the shaft.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: October 22, 1996
    Assignee: Koyo Jidoki Co., Ltd.
    Inventor: Kyoichi Yamashita
  • Patent number: 5469936
    Abstract: A support device for an item of retractable street furniture having electrical actuation is provided having a stationary box installed in the ground; moving equipment housed in the box and including a top support plate for supporting the item of street furniture, the equipment being movable between a high position in which the item of street furniture emerges from the box above the level of the ground, and a low position in which the item of street furniture is retracted into the box so that the top portion thereof does not project above ground level; an electrical motor and gear box unit; and a transmission for converting the rotary motion of the motor and gear box unit into translation motion of the moving equipment between its high position and its low position.
    Type: Grant
    Filed: June 3, 1994
    Date of Patent: November 28, 1995
    Inventors: Olivier Lauga, Nicolas Revol, Lionel Murou
  • Patent number: 5370206
    Abstract: A driving system for elevators includes a cab, a pair of chain suspenders on the bottom of the cab and suspended from the roof of a building, a synchronized transmission device having a plurality of gears and chain wheels of different diameters, connected on one hand with a d/c motor and on the other hand via a pair of shafts and driving chains with chain suspenders, a plurality of retarders coupled with respective suspenders and a set of counter weights adjacent the cab and supported by a pair of pulleys on the roof of a building. This disclosure has been characterized in the structure of the synchronized transmission device which is designed as a labor saving mechanism, in addition to the installation of the retarders and the set of counter weights the cab can be operated by a d/c motor or by manual manipulation.
    Type: Grant
    Filed: September 24, 1993
    Date of Patent: December 6, 1994
    Inventor: Wen-Ping Chao