The invention relates to a device for coupling a load or a counterweight to a rigid drive train, which device comprises: a movable fork (1) having at least one finger (11), movable between an engaged position in which, when the device is installed, the finger (11) is engaged with the rigid train, and a disengaged position in which, when the device is installed, the finger (11) is not engaged with the rigid train, characterised in that the movable fork (1) has guide rollers (15) on its sides parallel to the tilting plane, and in that it comprises side walls (3), located on either side of the movable fork (1), having circular-arc-shaped grooves (31) in which the guide rollers (15) are engaged, forming a means for guiding the tilting of the fork (1) between the engaged and disengaged positions, and in that the fork (1) comprises a lugged nut (13), engaged with a threaded rod (5), the threaded rod (5) being configured to be rotated in order for the movable fork (1) to tilt between the disengaged and engaged positions.
The invention relates to a lifting kit for an elevator, comprising: - a structural frame (105) configured to be attached to an elevator shaft wall; - a platform (1) guided in translation along the structural frame (105), the platform configured to carry a load to be raised and/or lowered; - at least one counterweight (9) or balance weight connected to the platform (1). such that the counterweight (9) or balance weight lowers as the platfrom (1) rises, and rises as the platform (1) lowers, characterised in that it comprises two lifting devices (103), each comprising: - an electric motor (51) driving a pinion (50); - a rigid chain (7) arranged in a U-shape, wherein the pinion (50) engages with the rigid chain (7) to drive it.
Thrust chain device, includes a thrust chain with a straight portion along an axis and a curved portion, and links hinged on shafts, a chain guide, a driving sprocket with chain interlocking teeth, the sprocket being in contact with the chain via contact surfaces in the shape of an involute of a circle, the contact surfaces belonging to the teeth, a tooth engaging with the chain while defining a line of action having an angle with the shaft of the straight portion of between −10° and 10°, the sprocket in contact with the straight portion and not the curved and is mounted such that it can rotate on a shaft on the side of the chain opposite the curved portion's center of curvature, the contact surfaces including a convex front surface directed towards the straight portion and a rear surface directed towards the curved portion when the tooth is interlocking.
F16G 13/20 - Chains having special overall characteristics stiffPush-pull chains
B66F 3/06 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
A multilinear actuator transmits a force in several directions, and includes complementary actuating strands made of flexible material and provided on a first face with spaced studs, the actuating strands being located opposite each other, the studs meshing with one another, and transverse faces of one stud bear against respective rear and front transverse faces of adjacent studs of the other actuating strand, defining a straight section in which the two actuating strands are rigidly connected, so that the straight section behaves like a rigid bar, said actuating strands including on an outer face, regularly spaced teeth, the actuator including one driving member per actuating strand, meshing with the teeth of the second face of one of said actuating strands to translate said actuating strand, the actuator including a straight section and a straight section in which the actuating strands are meshed, and a curved region located between the straight sections in which the actuating strands are spaced apart.
F16G 13/20 - Chains having special overall characteristics stiffPush-pull chains
F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
5.
THRUST CHAIN DEVICE HAVING A TOOTHED SPROCKET WITH LONG ASYMMETRICAL TEETH
Thrust chain device, comprising a thrust chain (10) comprising a straight portion (10a) along an axis and a curved portion (10b), the chain comprising links (12) hinged on shafts, a thrust chain guide (20), a driving sprocket (1) provided with teeth (2) interlocking with the thrust chain, the sprocket being in contact with the thrust chain via contact surfaces (2a) in the shape of an involute of a circle, the contact surfaces (2a) belonging to the teeth, a tooth (2) engaging with the chain while defining a line of action having an angle with the shaft of the straight portion of between -10° and 10°, the line of action being offset relative to the hinge shafts of the links, the sprocket in contact with the straight portion (10a) and not in contact with the curved portion (10b) and being mounted such that it can rotate on a shaft located on the side of the chain opposite the centre of curvature of the curved portion (10b), and the contact surfaces (2a) comprising a convex front surface directed towards the straight portion 10a and a rear surface directed towards the curved portion (10b) when the tooth (2) is interlocking.
F16G 13/20 - Chains having special overall characteristics stiffPush-pull chains
B66F 3/06 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
The invention relates to a multilinear actuator (1) transmitting a force in several directions, comprising complementary actuating strands (2, 3) made of flexible material and provided on a first face (5) with spaced studs (7), the actuating strands being located opposite each other, the studs meshing with one another, and transverse faces (9, 10) of one stud bear against respective rear and front transverse faces of adjacent studs of the other actuating strand (3, 2), defining a straight section in which the two actuating strands are rigidly connected, so that the straight section behaves like a rigid bar, said actuating strands comprising on an outer face, regularly spaced teeth (20), the actuator comprising one driving member (21) per actuating strand, meshing with the teeth of the second face (6) of one of said actuating strands to translate said actuating strand, the actuator comprising a straight section (40) and a straight section (50) in which the actuating strands are meshed, and a curved region (60) located between the straight sections in which the actuating strands are spaced apart.
A thrust lifting device that is able to transmit a thrust force for lifting loads, includes at least one articulated lift column provided with at least one meshing part, and with at least one arm directed upward from the meshing part, the lift column made up of links with a link of rank 1 at the upper end of the upwardly directed arm and running links of rank n, where n is between 2 and N, the number of links of the lift column, —at least one rotary pinion driving the lift column by the meshing part meshing with the pinion, —at least one arm opposite the upwardly directed arm and formed by resting links, the resting links being able to pass to the meshing part and to the upwardly directed arm by rotation of the pinion, and —at least one stabilizer that is movable along the upwardly directed arm.
B66F 7/06 - Lifting frames, e.g. for lifting vehiclesPlatform lifts with platforms supported by levers for vertical movement
B66F 3/06 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
F16G 13/20 - Chains having special overall characteristics stiffPush-pull chains
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
Construction materials of metal; transportable buildings of
metal; telescopic buildings of metal; transposition of
mobile buildings of metal; metal hinged flanges; chains of
metal; metal pillars (construction parts); metal ramps;
metal push bars; show performances composed of primarily
metal materials; bleachers of metal; floors of metal;
mobile metal stands for viewers. Machine tools; lifting apparatus; elevators (lifts);
moving staircases [escalators]; elevators; hoists; lifting
machines for handling loads; lifting gear for handling
loads; lifting columns; lifting platforms and lifting
platforms including mobile platforms; holders for lifting
tables; slide rests (machine parts); platform forklift
trucks; handling apparatus with loading plate; tool loading
machines; structures transfer apparatus; machines for the
transport and horizontal and vertical transfer of loads;
horizontal, vertical and rotating conveyance mechanisms;
handling machines (loading and unloading); loading
machines; drives for elevators; drives for machines;
mechanism for processing of layers of seats via an automated
system; guidance mechanism for movement of seats to change
room layout; pantograph (machines); transmission chains
other than for land vehicles; rigid thrust chains for
machines; traction chains for machines; rigid chains for
machine tools; chain storage devices for machine tools;
storage devices (parts of machines); elevator belts; belts
for machines; power transmission belting for machines;
jacks (machines); transmission jacks (machines); mechanical
jacks; flexible electric jacks; telescopic cylinders;
linear actuators; telescopic actuators (mechanical);
Actuators for mechanisms; derricks; telescopic tubes of
metal; robotic arms for industrial use; piece clamping
flanges for machine tools; lifting ramps; ramps in the
form of machines; lifting tables; conveyance mechanisms
for swimming pool floors; rotary tables for machine tools;
sliding tables for work pieces (machines); tool-changing
devices for machine tools; articulated console for changing
tools for machine tools; mechanically-operated tools. Installation, maintenance and repair of systems for moving
and transferring loads; installation, maintenance and
repair of lifting equipment; installation, maintenance and
repair of transfer and handling equipment; installation,
maintenance and repair of machine tools.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
Construction materials of metal; transportable buildings of
metal; transposition of mobile buildings of metal; chains
of metal; metal pillars (construction parts); metal push
bars; show performances composed of primarily metal
materials; bleachers of metal; floors of metal; mobile
metal stands for viewers. Machine tools; lifting apparatus, elevators, moving
staircases [escalators], lifts, hoists; lifting machines
for handling loads; lifting gear for handling loads;
lifting columns; lifting platforms and lifting platforms
including mobile platforms; lifting table; holders for
lifting tables; slide rests (machine parts); platform
forklift trucks; structures transfer apparatus; machines
for transport and vertical transfer of loads; vertical
movement mechanisms; drives for elevators; mechanism for
processing of layers of seats via an automated system;
guidance mechanism for movement of seats to change room
layout; chain storage devices for machine tools; storage
devices (parts of machines); transmission chains other than
for land vehicles; rigid thrust chains for machines; rigid
chains for machine tools; elevator belts; jacks
(machines); transmission jacks (machines); mechanical
jacks; flexible electric jacks; linear actuators;
telescopic actuators; telescopic actuators (mechanical);
ramps in the form of machines; lifting ramps; conveyance
mechanisms for swimming pool floors. Installation, maintenance and repair of systems for moving
and transferring loads; installation, maintenance and
repair of lifting equipment; installation, maintenance and
repair of transfer and handling equipment; installation,
maintenance and repair of machine tools.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
(1) Construction materials of metal, namely arbours, beams, boards, cladding, fire-resistant panels, fittings, slaps, staples, moldings, pillars; transportable buildings of metal, namely sheds, mobile metal office buildings; mobile homes of metal; chains of metal; metal push bars; show performances composed of primarily metal materials; bleachers of metal; floors of metal; mobile metal stands for viewers
(2) Machine tools, namely electric planers, drills for metalworking machines, electric drills, cutters for milling machines, milling machines, grinding machines for metalworking, air-operated power tools, power-operated angle grinders; lifting apparatus, namely hydraulic lift tables, elevators, moving staircases [escalators], lifts, hoists; lifting machines for handling loads, namely cargo lifting derricks; lifting gear for handling loads, namely machine pulleys; lifting columns; lifting platforms and mobile platforms, namely metal elevator platforms and mobile elevating work platforms; lifting table; holders for lifting tables; slide rests being parts of machines; platform forklift trucks; machines for transport and vertical transfer of loads and vertical movement mechanisms, namely cargo handling robots for use in warehouses; drives for elevators, namely drive pulleys; mechanism for processing of layers of seats via an automated system, namely stair stacking machines; guidance mechanism for movement of seats to change room layout; chain storage devices for machine tools; machine parts, namely components for storage of keys; transmission chains for elevators; rigid thrust chains for machines; rigid chains for machine tools; elevator belts; power jacks, electric jacks, pneumatic jacks; transmission jacks (machines); mechanical jacks; flexible electric jacks; linear actuators; telescopic actuators; telescopic actuators (mechanical); machine loading ramps; lifting ramps; conveyance mechanisms, namely movable swimming pool floor systems for adjusting swimming pool floors (1) Installation, maintenance and repair of cargo handling robots for moving and transferring loads; installation, maintenance and repair of lifting equipment; maintenance and repair of machine tools, namely electric planers, drills for metalworking machines, electric drills, cutters for milling machines, milling machines, grinding machines for metalworking, air-operated power tools, power-operated angle grinders
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
42 - Scientific, technological and industrial services, research and design
Goods & Services
Transportable metal constructions; Telescopic metal constructions; Movable metal constructions in translation, namely, transportable metal buildings, transportable metal structures, transportable metal seat row; Hinge clamps of metal; Metal chains; Metal pillars for buildings; Metal ramps for use with vehicles; Metal push bars; Stages for shows composed of primarily metal materials; Metal bleachers; Metal floors; movable stands of metal for use by spectators Machine tools, namely, metalworking machine tools ; Lifting devices for transportable metal buildings, transportable metal structures, transportable metal seat row; Elevators; escalators; Lifting installations for the transport of persons and goods; hoists; Lifting machines for handling loads; Lifting gear being parts of lifting machines for handling loads; Lifting installations for the transport of persons and goods, namely, lift columns; Elevating or lifting work platforms; Parts of machines being stands for lifting tables; Parts of machines being slide rests; Lifting installations, namely, platform truck lifts; Cargo handling apparatus with loading pallets; Loading and unloading machines, namely, machines for loading tools; Power-operated lifting and moving equipment, namely, devices for moving transportable structures; Machines for horizontal and vertical transport and for load transfer, namely, rigid chain actuators, non-magnetic belt conveyors, trolley on rail ; Mechanisms of horizontal, vertical and rotating movement, namely, rigid chain actuators; Loading and unloading machines, namely, handling machines; Loading machines; Power-operated lifting machines for moving lifts; Driving motors, other than for land vehicles; Devices for transforming rows of seats via an automated system; Seats moving guidance mechanism for modifying an auditorium layout; Driving chains other than for land vehicles; Rigid push chains for machines; Towing chains for machines; Rigid chains for machine tools; chain storage device for machine tools; Elevator belts; Machine belts; Power transmission belting for machines; power-operated jacks; Transmission jacks; Mechanical jacks; power-operated flexible jacks; Telescopic machine jacks; Linear actuators; Telescopic mechanical actuators; Actuators for mechanisms; Derricks; Robotic arms for industrial purposes; Work clamps for machine tools; powered lifting ramps; Ramps being machines; Hydraulic lift tables; mechanisms for moving swimming pool bottoms; Rotary tables for machine tools; Workpiece slide tables being machines; Tooling change devices for machine tools; Articulated consoles for tool change for machine tools; Mechanical tools Installation, maintenance and repair services for load moving and transfer systems; Installation, maintenance and repair services for lifting equipment; Installation, maintenance and repair services for moving and handling equipment; Installation, maintenance and repair services of machine tools Research and development in the field of product development for devices for horizontal and vertical moving loads; Research and development in the field of product development for devices for fast tool change; Research and development in the field of product development of machines for horizontal and vertical moving loads for the transformation and reconfiguration of multi-purpose venues; Design of machines and mechanical components for horizontal and vertical moving loads; Design of machines and mechanical components for fast tool change; Design of machines and mechanical components for the transformation of multi-purpose venues; Design of machines and mechanical components for structure displacement; Engineering services; Conducting of technical feasibility studies; Technological studies relating to machine tools
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
Transportable metal constructions; Telescopic metal constructions; Movable metal constructions in translation, namely, transportable metal buildings, transportable metal structures, transportable metal seat row; Hinge clamps of metal; Metal chains; Metal pillars for buildings; [ Metal ramps for use with vehicles; ] Metal push bars; Stages for shows composed of primarily metal materials; Metal bleachers; Metal floors; movable stands of metal for use by spectators Machine tools, namely, metalworking machine tools ; Lifting devices for transportable metal buildings, transportable metal structures, transportable metal seat row; Elevators; escalators; Lifting installations for the transport of persons and goods; hoists; Lifting machines for handling loads; Lifting gear being parts of lifting machines for handling loads; Lifting installations for the transport of persons and goods, namely, lift columns; Elevating or lifting work platforms; Parts of machines being stands for lifting tables; Parts of machines being slide rests; Lifting installations, namely, platform truck lifts; Cargo handling apparatus with loading pallets; Loading and unloading machines, namely, machines for loading tools; Power-operated lifting and moving equipment, namely, devices for moving transportable structures; Machines for horizontal and vertical transport and for load transfer, namely, rigid chain actuators, non-magnetic belt conveyors, trolley on rail ; Mechanisms of horizontal, vertical and rotating movement, namely, rigid chain actuators; Loading and unloading machines, namely, handling machines; Loading machines; Power-operated lifting machines for moving lifts; Driving motors, other than for land vehicles; Devices for transforming rows of seats via an automated system; Seats moving guidance mechanism for modifying an auditorium layout; Driving chains other than for land vehicles; Rigid push chains for machines; Towing chains for machines; Rigid chains for machine tools; chain storage device for machine tools; Elevator belts; Machine belts; Power transmission belting for machines; power-operated jacks; Transmission jacks; Mechanical jacks; power-operated flexible jacks; Telescopic machine jacks; Linear actuators; Telescopic mechanical actuators; Actuators for mechanisms; Derricks; Robotic arms for industrial purposes; Work clamps for machine tools; [ powered lifting ramps; Ramps being machines; ] Hydraulic lift tables; mechanisms for moving swimming pool bottoms; Rotary tables for machine tools; Workpiece slide tables being machines; Tooling change devices for machine tools; Articulated consoles for tool change for machine tools; Mechanical tools Installation, maintenance and repair services for load moving and transfer systems; Installation, maintenance and repair services for lifting equipment; Installation, maintenance and repair services for moving and handling equipment; Installation, maintenance and repair services of machine tools
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
Metal building materials; Transportable structures of metal; Telescopic buildings of metal; Transferable mobile metal constructions; Suspension clamps of metal; Chains of metal; Pillars of metal for buildings; Ramps of metal; Metal push bars; Stages for shows composed predominantly of materials of metal; Stands of metal; Floor boards of metal; Portable stands of metal for use by spectators; Collapsible tubes of metal. Machine tools; Lifting apparatus; Elevators [lifts]; Moving staircases [escalators]; Lifts, other than ski-lifts; Hoists; Lifting machines for handling loads; Lifting gear for handling loads; Lifting columns; Elevating or lifting platforms (including mobile); Stands for lifting tables; Slide rests [parts of machines]; Platform truck lifts; Handling apparatus with loading pallet; Tool-loading machines; Apparatus for moving structures; Machines for the horizontal and vertical transport and transfer of loads; Horizontal, vertical and rotational moving mechanisms; Handling machines (loading and unloading); Machines for loading; Driving devices for lifts; Driving devices for machines; Mechanism for transforming rows of seats via an automated system; Mechanism for guiding the moving of seats for modifying room layout; Pantographs (machines); Transmission chains other than for land vehicles; Rigid push chains for machines; Traction chains for machines; Rigid chains for machine tools; Device for storing chains for machine tools; Storage devices (parts of machines); Elevator belts; Belts for machines; Power transmission belting for machines; Jacks [machines]; Transmission jacks (machines); Mechanical jacks; Flexible jacks (Power operated -); Telescopic jacks; Linear actuators; Telescopic actuators (mechanical); Actuators for mechanisms; Derricks; Robotic arms for industrial purposes; Work clamps for machine tools; Lifting ramps; Ramps being machines; Lifting tables; Mechanisms for moving swimming pool floors; Rotary tables for machine tools; Workpiece slide tables [machines]; Tool changing devices for machine tools; Articulated consoles for changing tools in machine tools; Mechanical tools. Installation, maintenance and repair of load movement and transfer systems; Installation, maintenance and repair of lifting equipment; Installation, maintenance and repair of moving and handling equipment; Installation, repair and maintenance of machine tools.
06 - Common metals and ores; objects made of metal
07 - Machines and machine tools
37 - Construction and mining; installation and repair services
Goods & Services
Metal building materials; Transportable structures of metal; Transferable mobile metal constructions; Chains of metal; Pillars of metal for buildings; Metal push bars; Stages for shows composed predominantly of materials of metal; Stands of metal; Floor boards of metal; Portable stands of metal for use by spectators. Machine tools; Lifting apparatus, lifts, escalators, elevators, hoists; Lifting machines for handling loads; Lifting gear for handling loads; Lifting columns; Elevating or lifting platforms (including mobile); Lifting tables; Stands for lifting tables; Slide rests [parts of machines]; Platform truck lifts; Apparatus for moving structures; Machines for the transport and vertical transfer of loads; Vertical movement mechanisms; Driving devices for lifts; Mechanism for transforming rows of seats via an automated system; Mechanism for guiding the moving of seats for modifying room layout; Device for storing chains for machine tools; Storage devices (parts of machines); Transmission chains other than for land vehicles; Rigid push chains for machines; Rigid chains for machine tools; Elevator belts; Jacks [machines]; Transmission jacks (machines); Mechanical jacks; Flexible jacks (Power operated -); Linear actuators; Telescopic actuators; Telescopic actuators (mechanical); Ramps being machines; Lifting ramps; Mechanisms for moving swimming pool floors. Installation, maintenance and repair of load movement and transfer systems; Installation, maintenance and repair of lifting equipment; Installation, maintenance and repair of moving and handling equipment; Installation, repair and maintenance of machine tools.
Device (7) for intervening inside an enclosure (1) having a manhole (3), comprising: – an arm (10) that is able to move in translation along a first axis and in rotation about the first axis, – a rigid chain mechanism supported by the arm (10) and having a rest position and a deployed position along a second axis that intersects the first axis, the rigid chain in the deployed position forming a rigid beam (11), – a tool support (12) supported by the distal end of the rigid chain.
A thrust chain device that induces an open thrust chain with a thrust portion and a housing portion, a thrust chain guide on a thrust portion of the thrust chain, a driving sprocket provided with teeth interlocking with the thrust chain, and a storage space of the housing portion, is provided. The storage space is parallel to the thrust portion and located opposite the thrust portion, the driving sprocket interlocks bilaterally with the thrust chain in a symmetric manner on the side of the thrust portion and on the side of the housing portion, the chain includes a connection portion between the thrust portion and the housing portion, arranged at a distance from the sprocket, the driving sprocket is in contact with the thrust chain by surfaces in the shape of an involute of a circle, the surfaces belonging to the teeth, where one tooth meshes with the chain while defining a line of action having an angle with the thrust portion between −10° and 10°, and the guide includes contact surfaces in synthetic material.
B66F 3/06 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
F16G 13/07 - Driving-chains with links connected by parallel driving-pins with or without rollers the links being of identical shape, e.g. cranked
F16G 13/20 - Chains having special overall characteristics stiffPush-pull chains
F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
17.
Rigid chain link and rigid chain equipped with such a link
Link for a rigid chain, comprising at least one flange, of rectangular overall shape, with a substantially constant thickness perpendicularly to its main plane. The flange comprises a first part and a second part. Each of the parts comprises a heel designed to bear against a corresponding heel of a similar flange of an adjacent link of the rigid chain, and a base designed to form a bearing about a rotary pin with respect to said adjacent link. The heel and the base each extend on either side of the main plane and parallel to said main plane.
The invention relates to a thrust lifting device (1) that is able to transmit a thrust force for lifting loads, comprising: - at least one articulated lift column (2) provided with at least one meshing part (20), and with at least one arm (21) directed upward from the meshing part (20), the lift column (2) being made up of links (22) with a link of rank 1 at the upper end of the upwardly directed arm (21) and running links of rank n, where n is between 2 and N, the number of links (22) of the lift column (2), - at least one rotary pinion (3) driving the lift column (2) by said meshing part (20) meshing with the pinion (3), - at least one arm (4) opposite the upwardly directed arm (21) and formed by resting links, said resting links being able to pass to the meshing part (20) and to the upwardly directed arm (21) by rotation of the pinion (3), and - at least one stabilizer (5) that is movable along the upwardly directed arm (21).
B66F 7/06 - Lifting frames, e.g. for lifting vehiclesPlatform lifts with platforms supported by levers for vertical movement
B66F 3/06 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
F16G 13/20 - Chains having special overall characteristics stiffPush-pull chains
19.
Rigid chain link and rigid chain equipped with such a link
Link for a rigid chain, comprising at least one flange, of rectangular overall shape, with a substantially constant thickness perpendicularly to its main plane. The flange comprises a first part and a second part. Each of the parts comprises a heel designed to bear against a corresponding heel of a similar flange of an adjacent link of the rigid chain, and a base designed to form a bearing about a rotary pin with respect to said adjacent link. The heel and the base each extend on either side of the main plane and parallel to said main plane.
Thrust chain device, comprising an open thrust chain (10) comprising a thrust portion (10a) and a housing portion (10b), a thrust chain guide (20) on a thrust portion of the thrust chain, a driving sprocket (1) provided with teeth (2) interlocking with the thrust chain, and a storage space (9) of the housing portion. Said storage space (9) is parallel to the thrust portion and located opposite the thrust portion, the driving sprocket (1) interlocks bilaterally with the thrust chain in a symmetric manner on the side of the thrust portion (10a) and on the side of the housing portion (10b), the chain (10) comprising a connection portion (10c) between the thrust portion (10a) and the housing portion (10b), arranged at a distance from the sprocket, the driving sprocket (1) being in contact with the thrust chain by surfaces (2a) in the shape of an involute of a circle, said surfaces (2a) belonging to the teeth (2), one tooth (2) meshing with the chain (10) while defining a line of action having an angle with the thrust portion between -10° and 10°, and said guide (20) comprising contact surfaces in synthetic material.
F16H 19/06 - Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary motion and reciprocating motion comprising an endless flexible member
F16G 13/20 - Chains having special overall characteristics stiffPush-pull chains
B66F 3/06 - Devices, e.g. jacks, adapted for uninterrupted lifting of loads with racks actuated by pinions with racks comprising pivotable toothed sections or segments, e.g. arranged in pairs
21.
RIGID CHAIN LINK AND RIGID CHAIN EQUIPPED WITH SUCH A LINK
Link (200n) for a rigid chain (100), comprising at least one flange (1), of rectangular overall shape, with a substantially constant thickness (93, 97) perpendicularly to its main plane (81). The flange (1) comprises a first part (2) and a second part (4). Each of the parts (2, 4) comprises: a heel (5) designed to bear against a corresponding heel of a similar flange (1n-1; 1n+1) of an adjacent link (200n-1; 200n+1) of the rigid chain (100), and a base (7) designed to form a bearing about a rotary pin (400) with respect to said adjacent link (200n-1; 200n+1). The heel (5) and the base (7) each extend on either side of the main plane (81) and parallel to said main plane (81).
A multipurpose hall equipped with a set of beams supporting seats (1) bearing independent load-bearing units (3) equipped with a group of seats (4) which can be arranged in a stepped configuration or a flat configuration, characterized in that it comprises means for tilting the groups of seats (4) which for each of the load-bearing units (3) comprises at least one pantograph mechanism (9) comprising a fixed support (10) of one piece with the load-bearing beam (1) and a movable support (11) of one piece with the load-bearing unit (3) and the group of seats, as well as a control linkage whereby the group of seats (4) can be moved between a deployed position and a retracted position by rotation around the fixed support (10).
The invention relates to a device for laying out a room, comprising a set of seats distributed over multiple parallel rows. The invention is characterised in that the device comprises: a set of supporting beams (1) disposed behind one another and each provided with a first floor surface (3) equipped with a series of seats (5) and a second planar floor surface (4); and means for rotating the supporting beams (1), which co-operate with means (6, 6') for lifting said beams (1), such that they can be moved together by means vertical translation and rotation through 180° between a stepped position and a planar position.
