Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B66—HOISTING; LIFTING; HAULING
  • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
  • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
  • B66B9/02—Kinds or types of lifts in, or associated with, buildings or other structures actuated mechanically otherwise than by rope or cable

Definitions

• the present invention relates to a mechanical progression and safety elevator.
• the invention is suitable for small household elevators as well as for collective elevators of buildings.
• the invention is particularly suitable for vertical transport but can also be applied on inclined or curved paths.
• the invention can be used for the transport of loads as well as people.
• the main feature of the invention resides in a particular mechanism with a propulsion intrinsically linked to safety, and more specifically to a safety that precedes propulsion.
• the prior art proposing in a first form cable systems with disjoint mechanics for the propulsion mechanics that actuates the moving motor cable and a safety mechanism that triggers in case of a fall to block the elevator with a safety cable .
• a first defect of this first solution being to be very expensive in manufacturing and maintenance, with a cable passage from bottom to top of the installation.
• a second defect of this first solution is not to anticipate securing after a possible problem, then acting then through a particular mechanism acting on the security cable.
• the prior art proposing under a second fo ⁇ ne, devices called rack with a mechanism that progresses along a rack.
• a first flaw of this second solution is to be very expensive, to be fragile and to be heavy maintenance.
• a second flaw of this solution is to be unsuitable for elevator cages with limited volume and to correspond more to a use for mounted loads for scaffolding work.
• a main object of the invention is to propose a propulsion and safety mechanism whose security precedes the progression.
• the invention thus providing a mechanism that is always safe and whatever the use, stopping, forward or reverse.
• An object of the invention is to propose a propulsion and safety mechanism that is economical to manufacture and maintain. Maintenance is easy and does not require expensive cable changes.
• An object of the invention is to provide a propulsion and safety mechanism that fits on any format of elevator shaft or hoist.
• An object of the invention is to provide a propulsion and safety mechanism which is small, which is discrete in terms of sound and which provides a stable continuous movement.
• An object of the invention is to provide a propulsion and safety mechanism which is solid, robust and which is embedded with the elevator shaft.
• the invention proposes an elevator which progresses along a set of progress rails, with a mechanism comprising a rail progression blocker, each progress blocker acting on a plate common to all the blockers, the plate acting on the floor of the elevator shaft to advance the elevator shaft along the progress rails.
• the propulsion and safety mechanism is positioned under the elevator shaft. Moving upward, the mechanics pushes a tray that acts on the elevator shaft. Moving downwards, the mechanism holds a tray that holds the elevator shaft.
• the engine that propels the elevator prints a rotation to a circular horizontal ramp plateau whose periphery comprises a ramp positioned under the blockers.
• the rotation of the plate moving the ramp under the blockers and thus progressively modifying the state of each of the blockers to bring them in the blocking position or in the upward or downward progression position.
• Figure la and Ib show a side view of a blocker, in the locking position in Figure la, and in the advancing position in Figure Ib.
• FIGS. 2a and 2b show, in front view, the device for actuating the blocker in the locked position in FIG. 2a, and the progression position in FIG. 2b.
• FIG. 3 represents a front view of an elevator according to the invention
• FIG. 4 represents a front view of propulsion and safety mechanics
• FIGS. 5a, 5b, 5c show three ramp profiles according to the invention adapted respectively to a two rail ramp, a three rail ramp and a four rail ramp.
• FIGS. 6a, 6b and 6c show high-level views of the positioning of the progress rails and the blockers with a two rail configuration, FIG. A, three rails FIG. 6b and four rails FIG. 6c.
• Figures 7a, 7b and 7c show a side view of the progression according to three successive views of a ramp height between two blockers.
• Figure 8a shows a view of a progress type rail.
• FIG. 8b shows a top view of the positioning of the progress rails and blockers with a three-rail configuration of FIG. 8a.
• FIGS. 1a and 1b show a side view of a progression blocker (1), in the blocking position in FIG. 1a, and in the progression position in FIG. 1b.
• the blocker (1) is constituted by a guide block
• the guide block (10) which cooperates with a locking jaw (11).
• the guide block (10) and the locking jaw (11) enclosing the progression rail (5).
• the guide block (10) cooperating with the locking jaw (11) by a double articulation hinge cam (12) positioned at the rear on the guide block (10) on the one hand and on the rear on the locking jaw (11) on the other hand.
• a return spring (16) and a release (23) which will be more particularly described in FIGS. 2.
• Figures 2a and 2b show in front view the blocker actuating device in the locking position in Figure 2a, and the progression position in Figure 2b.
• the device for actuating the blocker comprises a release device (23) which is a simple rigid rod which slides in a chute (14) dug in the guide block (10) positioned under the rear of the locking jaw (11).
• the unlocker (23) resting on the upper face of a motion conversion plate (29) which will transform the horizontal movement of the ramp (20) into a vertical movement of the unlocker (23).
• the conversion plate (29) is articulated in rotation along an axis of rotation (24) relative to the guide block (10) on which it is fixed.
• the conversion plate (29) comprises on the bottom a roller (21) freely pivoting about a roller axis (28) parallel to the axis of rotation (24) of the conversion plate (29).
• the wheel (21) being in the path of a ramp (20) more particularly described in Figures 5 and 6 which has a variable height. In some positions the ramp (20) just lift the wheel (21), in another position the ramp (20) does not touch the wheel (21) which remains in the low position, in which position the conversion plate (29) is maintained by an adjusting and abutment device (104).
• the invention preferably positions a wheel (21) contact with the ramp (20) so as to minimize friction and to convert with the minimum energy loss and accuracy the release of the unlocker (23) against the locking jaw (11).
• FIG. 3 shows a front view of an elevator that includes an elevator shaft (32) in which passengers or goods will be for transportation.
• the transport being preferentially heightwise along the vertical within the space defined by the propulsion rails (5).
• the elevator shaft having cage guides (45) secured to the elevator shaft (32) which are chutes which maintain, in a plane perpendicular to the axis of the progress rails, the elevator shaft (32) in a specific position relative to the propulsion rails (5).
• the cage is inscribed inside the surface defined by the progression rails (5).
• a particular form of cage guide (45) being shown in FIGS. 8.
• Under the elevator shaft (32) is first positioned the propulsion and safety device (31), and is then positioned the engine block (30).
• the frame of the elevator shaft (32) is rigidly connected to a propulsion frame (100) which houses the engine block (30) and the propulsion and safety device (31). .
• a propulsion frame 100 which houses the engine block (30) and the propulsion and safety device (31). .
• the engine block (30) housing a motor (41) and its power supply or gasoline.
• the motor (41) rotating a shaft vertically motor (40) at the end of which rests a ramp plate (49).
• FIGS. 6 showing how the ramp plate (49) is circular and on the periphery of which is positioned a ramp (20) of a thickness of a few centimeters and whose ramp height (H) is given in FIGS. ramp (20) being positioned under the wheel (28) of the guide block (10) as explained in FIGS. 2.
• the rotation of the ramp plate (43) therefore having the effect of circulating the ramp (20) under the guide blocks ( 10) and thus block or unblock the blockers (1) up or down.
• the blockers (1) preferably being positioned radially with respect to the center of the plate so as to have a so-called push plate bearing protrusion (17) on a circular path concentric with the circular path of ramp (20).
• the thrust plate (43) having a circular shape in the form of a plate.
• the reinforcements (42) in the form of a rib densify the rigidity of the thrust plate (43) and are positioned on its underside.
• a thrust gimbal 51,52,53,54
• the thrust gimbal being bi-articulated with a thrust plate hinge (55) connected by an extremely solid shaft (54) to a fixed hinge plate hinge (53) positioned centrally under the plate cage (44).
• FIGS. 5a, 5b, 5c show three ramp profiles according to the invention adapted to a two rail ramp (5), see FIG. 6a, a three rail ramp (5), see FIG. 6b, and a four rail ramp (5). see Figure 6c.
• the ramp (20) having a starting height (HD) above the ramp plate (49) which is preferably minimal so as to save space.
• the ramp height shown in FIG. 5 being that of the ramp as a function of the angular position describing the 360 ° circumference of the periphery of the ramp plate (43) in plan view.
• the ramp height (H) then has a maximum height differential (RH) between the maximum boom height and the starting height (HD).
• the height differential (HR) therefore represents the height elevation of the elevator after a motor shaft revolution (40).
• the ramp having a linear increasing profile on the 0 ° - 180 ° angular portion then a 180 ° - 360 ° flat profile, for a ramp adapted to a two-rail progression elevator (5).
• the ramp has a linear increasing profile on the 0 ° - 120 ° angular portion and a flat profile on 120 ° - 360 °, for a ramp adapted to lift three progression rails (5).
• the ramp has a linear increasing profile on the angular portion 0 ° - 90 ° then a flat profile on 90 ° - 360 °, for a ramp adapted to lift with four progress rails (5).
• the progression rails (5) are distributed regularly angularly on the ramp path. In this way, only one blocker (1) is unlocked, that is to say the one that lies under the increasing slope of the ramp that acts on the unlocker, see Figure Ib, and all other blockers (1) are blocked, that is to say those which lie under the flat part of the ramp (20).
• FIG. 5c shows a ramp profile with a crown (101) slightly rounded so as to smooth the transition between the locking / unlocking of two blockers (1) each positioned at 90 ° to the other, see FIG. 6c.
• This ramp profile thus transmits a constant linear angular movement of the motor shaft (40) in a constant linear linear motion of the cage plate (44) by the incremental trough of the successive and successive constant linear progression of each of the blockers (1).
• FIGS. 6a, 6b and 6c show high-level views of the positioning of the progression rails (5) and the blockers (1) with a two-rail configuration, FIG. 6a. three rails Figure 6b and four rails Figure 6c.
• the thrust plate (43) being circular with on its periphery a ramp path (20) which in section along the 360 ° periphery path adopts the profile shown in Figures 5a, 5b and 5c.
• the fixed cage plate articulation (53) which takes up the vertical rectilinear movement component of the thrust plate (43).
• the thrust plate (43) also having a movement component that accompanies the movement of the blockers is a pendulum component oscillating along a horizontal axis perpendicular to the line connecting the two blockers in Figure 6a, a swinging movement in the manner of a cup about axes of rotation (106) which pass successively by the two blockers blocked, figure 6b, and in FIG.
• a thrust plate which presents an improvement which is that of presenting the same configuration as the plate of FIG. 6a with in addition a plate divided into two sub-plates (43a, 43b).
• the two sub-plates (43a, 43b) are each rigidly connected to the thrust gimbal (53, 54, 55).
• the two subplates covering a 90 ° angle in between two successive blockers.
• the two sub-plates being freely rotatable about the main axis of rotation (X) of the plate (42) which passes at mid-angle between the two blockers of each of the sub-plates (42a, 42b).
• This solution makes it possible to keep a first fixed sub-platter (42b) with two fixed blockers in one direction (Y) in top view and another moving sub-platter with a pair of two blockers, one fixed and one movable in the same direction ( Y) in view of high.
• This solution being mechanically functional with a ramp plate supported at most on two locking points, whereas if the solution of FIG. 6b had been adopted for a cage with four progression rails (5), there would probably have been jamming. or harmful rubbing with three stoppers and a moving blocker acting on a rigid plate. All this a little like a tripod that is automatically stable, while a chair with four feet is fast wobbly.
• FIG. 7 showing how, for the climb, the thrust of the ramp (20) on the rear of the guide block (10) of the blockers (la, Ib) pushes the guide block (la, 10) unlocked upwards, which de facto acts on the tray reach (17a) which raises the thrust plate (43) which itself will lift by the cardan (53, 54, 55) the elevator shaft floor (44) (32).
• FIG. 7 showing how, for the climb, the thrust of the ramp (20) on the rear of the guide block (10) of the blockers (la, Ib) pushes the guide block (la, 10) unlocked upwards, which de facto acts on the tray reach (17a) which raises the thrust plate (43) which itself will lift by the cardan (53, 54, 55) the elevator shaft floor (44) (32).
• FIG. 7 showing how, for the climb, the thrust of the ramp (20) on the rear of the guide block (10) of the blockers (la, Ib) pushes the guide block (la, 10) unlocked upwards, which de facto acts on the tray
• FIG. 7c shows the moment when the first blocker (1a) goes to the locked position and the second blocker moves to the unlocked position with a ramp height greater than (HD) which raises the second blocker (Ib).
• the mechanism is the same with the weight of the entire elevator that pushes down and accompanies the descent of the ramp (20) which supports the blocker.
• Figure 8a shows a view of a progression rail (5) of the improved type. This rail is designed to meet the wear constraints and dissociate the progress rail (5) into two rails with a progress rail (5) which operates with the blocker (1) and a guide rail (6) which operates with the cage guide (45) which encloses the guide rail (6).
• the progression rail (5) is positioned parallel and in close proximity to the guide rail (6).
• the guide rail (6) being secured to the progression rail by an attachment (80), this which has the advantage of making the two rails of progression and guide (5,6) integral while being able to make them removable and change and maintain more frequently the progression rail (5) than the guide rail (6).
• the cage guide (45) being secured to the elevator shaft (32) by screws (81).
• the elevator shaft having at least two cage guides (45) per guide rail (6).
• the cage guide (45) having the shape of a chute inside which is the guide rail (6).
• FIG. 8b shows a top view of the positioning of the progress rails (5) and the blockers (1) and guide rails (6) and cage guides (45) with a three rail configuration.
• the elevator shaft being inscribed within the surface defined by the guide rails (6) and progress rails (5).
• the invention therefore relates to a propulsion and safety device for an elevator or hoist comprising an elevator shaft (32) propelled by a progression mechanism and secured by a safety mechanism, characterized in that the elevator shaft (32) ) progresses along a set of progress rails (5,6) guided by cage guides (45), the propulsion and safety mechanisms being embedded in a frame (100) rigidly connected to the elevator shaft (32), the progression mechanism comprising a progression blocker set (1), a progression blocker (1) being mounted on each of the progression rails (5, 6), the progress blockers being successively unlocked and pushed by a motor (40, 41) and its dispensing device (49, 20, 29, 23), the progression blocker (1) in the unlocked position acting by reflecting its movement on a bearing device (42, 43) common to all the blockers, the bearing device (42, 43) advancing the elevator shaft (32) along the progress rails ( 5, 6).
• the invention therefore relates to a device for propulsion and safety for an elevator, characterized in that the dispensing device (49, 20, 29, 23) is a ramp (20) of variable height (H) positioned on a circular periphery around the axis of rotation of the motor shaft (40) of the motorization (41)
• the invention thus relates to a device for propulsion and safety for an elevator characterized in that ramp path (20) adopts 360 ° periphery on a profile which cooperates with the arrangement of the progression rails (5, 6).
• the invention therefore relates to a device for propulsion and safety for an elevator, characterized in that over the set of 360 ° the ramp profile comprises the simple succession of a plane slope followed by an increasing linear slope, the proportion of length of periphery of plane slope on length of increasing linear slope being equal to the number of progression rails (5) minus 1.
• the invention thus relates to a device for propulsion and safety for elevator characterized in that the bearing device (42, 43) is a simple bearing plate (43) placed on thrust plate seats (17) positioned on the blockers (1) on a concentric circular path to the circular ramp path (20).
• the invention therefore relates to a device for propulsion and safety for an elevator, characterized in that the bearing plate (43) transmits its vertical movement component to the elevator shaft by a cardan or a ball joint (53, 54, 55). .
• the invention thus relates to a device for propulsion and safety for an elevator, characterized in that the progression rail (5, 6) consists of at least two rails including a progression rail (5) which operates with the blocker (1). ) and a guide rail (6) which operates with the cage guide (45) which encloses the guide rail (6).
• the invention therefore relates to a device for propulsion and safety for an elevator, characterized in that the progression rail (5) is positioned parallel and in close proximity to the guide rail (6), the guide rail (6) being secured to the advancement rail by an attachment (80), so as to separately support the progress rail (5) and the guide rail (6).
• the invention therefore relates to a device for propulsion and safety for an elevator, characterized in that the progression blocker (1) is constituted by a guide block (10) which cooperates with a locking jaw (11), the guide block (10). ) and the locking jaw (11) enclosing the progress rail (5), the guide block (10) cooperating with the locking jaw (11) by a hinge cam (12) with a double articulation positioned at the rear on the guide block (10) on the one hand and at the rear on the locking jaw (11), on the other hand, around this hinge cam (12) being positioned a return spring (16) and a unlocker (23), the release device (23) is actuated in contact by the ramp path (20) positioned under a roller (21) mounted on a motion conversion plate (29) which actuates the unlocker (23) in translation in a chute (14).
• the progression blocker (1) is constituted by a guide block (10) which cooperates with a locking jaw (11), the guide block (10). ) and the locking jaw (11) enclosing the progress rail

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Automation & Control Theory (AREA)
• Structural Engineering (AREA)
• Types And Forms Of Lifts (AREA)

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• 2006
  • 2006-04-24 FR FR0603588A patent/FR2900140B1/fr not_active Expired - Fee Related
• 2007
  • 2007-04-23 EP EP07731338A patent/EP2013131A1/de not_active Withdrawn
  • 2007-04-23 WO PCT/FR2007/000678 patent/WO2007125188A1/fr active Application Filing
  • 2007-04-23 CN CNA2007800225997A patent/CN101479178A/zh active Pending

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