JP6545776B2 - Elevator equipment - Google Patents

Description

  The embodiment of the present invention relates to an elevator apparatus having a structure for closing a gap between a landing side and a car side sill provided at an entrance to a car.

  In an elevator apparatus for transporting personnel and luggage by raising and lowering each floor with a car installed in a hoistway of a building, in order to raise and lower the car, a certain distance is provided between the landing and the car for each floor. There is a gap. For this reason, in a state in which the car stops landing on the landing and the door of the entrance is open, a gap is generated between the threshold on the landing and the threshold on the car. The gap between the sills causes small articles such as keys and cards dropped by the passengers to fall into the pits, making recovery difficult.

  Therefore, an elevator apparatus has been proposed which is provided with a closing member for closing a gap between sills and operated so as to close the gap between sills when the door is opened (see, for example, Patent Document 1). That is, when the car is landed on the predetermined floor and the door is opened, the closing member moves to the closing position closing the gap between the sills. Further, when the door is closed, the closing member moves from the closing position to the retracted position below the car-side sill.

JP, 2009-286504, A

  In such an elevator installation, the passenger gets on and off the car with the closing member closing the gap between the sills. At this time, foreign matter such as pebbles attached to the shoes of the passenger may fall on the closing member closing the gap. The closing member moves toward the retracted position of the lower portion of the sill on the car side with the closing operation of the door, but the foreign matter on the closing member also moves in the same direction. For this reason, in the retracted position, the foreign matter is pinched between the upper surface of the closing member and the lower surface of the sill on the side of the car that is opposed.

  If a foreign object is sandwiched between the closing member and the lower surface of the car-side sill, the closing member will not move smoothly, and if the amount of the foreign object caught is large, the movement of the closing member will be hindered. As a matter of fact, the drive mechanism of the closing member may be damaged.

  The present invention has been made under the above-described circumstances, and an object thereof is to improve the durability of an elevator apparatus.

An elevator apparatus according to an embodiment of the present invention includes a cage on a side of a car that guides a car door provided at an entrance of a car in the opening / closing direction and a floor on each floor where the car can be seated. The sill on the hall side that guides the landing door provided at the entrance of the hall in the opening and closing direction, the closing position that closes the gap between the sill on the car side and the sill on the hall side, and the lower part of the sill on the car side The closing member movable between the retracted position and the closing member are connected to the closing member, and can be engaged with the actuating member on the car door side with the opening operation of the car door, and received from the actuating member by engagement with the actuating member And a drive mechanism for converting the force into the sliding movement direction of the closing member and driving the closing member in the sliding movement direction, wherein the closing member is connected to an operating spring receiving a moving force to the closing position, and the driving mechanism is Opening the door from the closed end of the car door The engagement force with the actuating member on the car door side is released accordingly, allowing the sliding movement to the closing position by the actuating spring, and the actuating member on the car door side engages with the movement to the closed door end of the car door. And the closing member in the closing position is slidingly moved to the retracted position against the spring force of the operating spring by receiving the moving force of the car door, and the closing member has at least the upper surface of the closing member of 250 HV to 450 HV It is characterized by being formed of a material that is hard and has high slidability.

  By forming the upper surface of the closing member with a material having high slidability, the foreign matter on the upper surface of the closing member slides down from the upper surface of the closing member during the retraction operation. Therefore, the foreign matter is sandwiched between the upper surface of the closing member and the lower surface of the sill on the car side, and movement of the closing member is not hindered.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the whole structure of the elevator apparatus which concerns on one Embodiment. It is the front view which looked at the door open state of the door part of the car in one embodiment from the boarding side. It is the front view which looked at the door closing state of the door part of the car in one embodiment from the boarding side. It is a perspective view showing the relation between the operation member by the side of a car door in one embodiment, and a drive mechanism. It is a top view which shows the closing member in a retracted position. It is a top view which shows the closing member in a closing position. It is a side view which shows the relationship between the closing member in a closing position, and the sill by the side of a car and a boarding point. It is a side view which shows the relationship between the closing member in a retracted position, and the sill by the side of a car and a landing. It is an enlarged view which shows the relationship between the upper surface of a closing member, and a foreign material. The relationship between the foreign material in the middle of retraction | saving of the closing member in one embodiment and the sill by the side of a car is shown, and (a) is a figure showing a retraction initial stage and (b) showing a retraction middle term. It is a perspective view which shows the relationship of the action | operation member by the side of a cage | basket | door in a modification 1, and a drive mechanism. The relationship between the foreign material in the middle of retraction | saving of the closing member in the modification 2, and the sill by the side of a car is shown, (a) is a retraction initial stage, (b) is a figure showing a retraction middle period.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  First, the overall configuration of the elevator apparatus will be described with reference to FIG. As shown in FIG. 1, the elevator apparatus 1 comprises a car 4 and a counterweight 5 arranged in a hoistway 3. Above the hoistway 3, there is provided a machine room 6 in which a hoisting machine 7 for driving the main rope 9 and a control device 8 and the like are installed. The control device 8 controls the entire elevator apparatus 1 and controls the operation of the hoisting machine 7 in response to a hall call or a car call, and makes the car 4 land on the floor where the call was made.

  The hoisting machine 7 and the control device 8 may be miniaturized and provided in the upper part in the hoistway 3 without providing the machine room 6.

  In the elevator apparatus 1, an entrance 12 communicating with the car 4 in the hoistway 3 is provided at the landing 11 provided on each floor of the building, and the entrance door 2 is provided at the entrance 12. The landing door 2 engages with the car door 25 side provided at the entrance 24 of the car 4 via the interlock mechanism (not shown) when the car 4 is landing, interlocking with the opening and closing of the car door 25. Open and close.

  2 and 3 are front views of the car door 25 portion provided at the entrance of the car 4 as viewed from the side of the landing 11. FIG. 2 shows a door open state where the car door 25 is open. The door 25 represents a closed door closed state. The car door 25 is a so-called double-opening type door which opens the two door panels 25a and 25b (only the door contact portion is shown, and the other parts are not shown) in mutually different illustrated lateral directions. . The two door panels 25a and 25b are connected to the door opening and closing mechanism, and are driven in the horizontal direction in the drawing by the door opening and closing mechanism to perform opening and closing operations.

  The door opening and closing mechanism is a well-known one and is not directly related to the present invention, so the description of the structure is omitted. However, the door opening and closing mechanism uses the power of a motor (not shown) to open the two door panels 25a and 25b. They are interlocked with each other, and are driven in the left-right direction along the guide rails to perform opening and closing operations.

  A car-side sill 31 is provided at the entrance / exit portion of the car 4 and guides the two door panels 25a and 25b constituting the car door 25 along the opening / closing direction. The car side sill 31 is provided on the lower side of the entrance 24 of the car, and the guide grooves formed on the upper surface of the sill 31 engage with the lower ends of the two door panels 25a and 25b, respectively. Guide these in the opening and closing direction.

  As shown in FIGS. 7 and 8, a sill 32 is provided on the side of the landing 11 with respect to the sill 31 on the car side. The sill 32 on the landing side is disposed opposite to one side (left side in FIGS. 7 and 8) of the sill 31 on the car side while maintaining a predetermined distance. A guide groove is also formed on the upper surface of the sill 32 on the landing side, and guides the landing door 2 shown in FIG. 1 along its opening and closing direction.

  The landing door 2 is also a double door type (not shown) having two door panels, and as described above, when the car 4 lands on the landing 11, it engages with the car door 25 and opens and closes with the car door 25. Operate. When the car 4 is not seated on the landing door 2, two door panels are locked in a closed state by an interlock mechanism (not shown), and when the car 4 is seated, the door 4 is not operated. The above-mentioned locked state is released by engaging with an engagement member (not shown), and the car door 25 is opened and closed.

  When the car 4 lands on a predetermined floor, a gap is generated between the car side sill 31 and the hall side sill 32 as shown in FIGS. 7 and 8. A closing member 35 is provided to close the gap. The closing member 35 is divided into right and left as shown in FIGS. 2 and 3. This divided portion is a portion where the car side sill 31 passes by the interlock mechanism (not shown) provided on the landing side when the car 4 moves up and down, and a space is provided on the left and right sides to allow passage of the interlock mechanism. It is divided and kept.

  In addition, when the car 4 lands, the space | interval of a division | segmentation part will insert the convex part which is provided in the corresponding part of the sill 32 by the side of the boarding point, and is substantially closed by the convex part.

  The upper surface 35 c of the closing member 35 is located below the upper surfaces of the car-side sill 31 and the landing-side sill 32 as shown in FIGS. 7 and 8. Further, as shown in FIG. 7, the closing member 35 is formed in a shape and a dimension capable of closing the gap between the sills 31 and 32. That is, the closing member 35 is formed to have a width slightly longer than the opening of the entrance 24 on the car side shown in FIG. 2 and slightly wider than the gap between the sills 31 and 32 shown in FIGS.

  Moreover, the cross section of the closing member 35 is made into a longitudinally long shape, and the recessed part 35a is formed in the opposing part with the illustration right side of the sill 32 by the side of a landing. The recess 35 a is provided to avoid the head of the screw 36 a provided on the illustrated right side surface of the sill 32 on the landing side. The screw 36a is for mounting a plate 36 that divides the space between lower floors. Further, the upper corner of the closing member 35 is chamfered 35 b.

  The closing member 35 is configured to be movable between a closing position closing the gap between the sills 31 and 32 shown in FIG. 7 and a retracted position retracted to the lower part of the sill 31 on the car side shown in FIG. The closing member 35 is slidingly driven between the closing position and the retracted position described above in accordance with the opening and closing operation of the car door 25 by a drive mechanism 41 described later.

  As shown in FIG. 4, the closing member 35 is attached via a plate spring 52 on a bracket 51 provided on the drive mechanism 41 side. The drive mechanism 41 is configured such that the actuating member 72 on the side of the car door 25 and the actuating pin 59 can be engaged with each other according to the opening and closing operation of the car door 25. Then, the engagement between the actuating member 72 and the actuating pin 59 converts the force received from the actuating member 72 into the moving direction of the closing member 35, thereby moving the closing member 35 in the retraction direction.

  In the present embodiment, as shown in FIGS. 5 and 6, the drive mechanism 41 is pivotable through four links 46, 47, 48, 49, one end of each of these links and the connecting shaft 50. And a bracket 51 connected thereto. The four links 46, 47, 48, 49 are rotatably supported on a support member 44 provided on the side of the car 4 via a pivot 45.

  Among the four links, the inner links 47 and 48 are for connection driving, and the other ends thereof are connected to the connecting rod 55 via the connecting shaft 54. An operating spring 56 is provided between the right end of the connecting rod 55 and the support member 44 to generate a repulsive force, and applies a force to translate the bracket 51 in the direction of pushing out the state of FIG. 5 to the state of FIG. .

  As shown in FIG. 4, the proximal end of the lever 58 is integrally attached to the pivot shaft 45 of the link 46 constituting the drive mechanism 41. An actuating pin 59 is provided upright at the tip of the lever 58. The upper side surface of the actuating pin 59 is arranged to be engageable with an actuating member 72 integrally provided on the door panel 25 a side of the car door 25.

  The operating pin 59 is engaged with an operating member 72 provided on the side of the door panel 25a, as shown in FIG. 4, when the car door 25 is in the door closed end position shown in FIG. Therefore, the drive mechanism 41 is held in the state of FIG. 5 in which the repulsive force of the actuating spring 56 is stored. That is, the closing member 35 is held at the retracted position shown in FIG.

  On the other hand, when the car door 25 is opened and the door panel 25a starts the door opening operation from the closed door end of FIG. 3, the actuating member 72 on the car door 25 side is illustrated from the state of FIG. As a result, the actuating member 72 and the actuating pin 59 are disengaged. Therefore, the links 46, 47, 48, 49 constituting the drive mechanism 41 rotate counterclockwise around the pivot 45 by the repulsive force of the actuating spring 56. By the operation of the drive mechanism 41, the closing member 35 supported on the bracket 51 and the bracket 51 via the plate spring 52 is fed out from the state of FIG. 5 to the state of FIG. That is, the closing member 35 moves from the retracted position shown in FIG. 8 to the closing position shown in FIG.

  On the other hand, when the car door 25 is closed from the fully open state shown in FIG. 2, the actuating member 72 is close to the door closed end shown in FIG. Engage as shown. For this reason, the lever 58 having the actuating pin 59 is driven clockwise as shown by the force in the closing direction of the door panel 25a. That is, the driving mechanism 41 returns the closing member 35 supported on the bracket 51 and the bracket 51 via the plate spring 52 from the state of FIG. 6 to the state of FIG. 5 by the force in the closing direction of the door panel 25a. Therefore, the closing member 35 moves from the closing position shown in FIG. 7 to the retracted position shown in FIG.

  Thus, in the drive mechanism 41, the engagement between the actuating member 72 and the actuating pin 59 is released by the door opening operation from the door closed end of the car door 25, so Allow movement to the closed position. Further, the actuating member 72 on the car door 25 side and the actuating pin 59 are engaged with the movement of the car door 25 to the closed door end, and the moving force of the car door 25 is received to close the closing member 35 in the closing position. Move to the retracted position.

  The closing member 35 may be made of metal or resin, but here, the case where the closing member 35 is formed of metal such as aluminum will be described. The upper surface 35 c of the closing member 35 is coated with a hard and highly slidable material as compared to the material of the closing member 35. High slidability means that it is slippery. That is, it means that the coefficient of friction between the foreign material 81 dropped to the upper surface 35 c of the closing member 35 and the upper surface 35 c is small. By coating the upper surface 35 c of the closing member 35 with a highly slidable material, the coefficient of friction of the upper surface 35 c of the closing member 35 is reduced. Further, it is desirable that the upper surface 35c of the closing member 35 be surface-treated with a material having a hardness of about 250 HV to 450 HV. By coating the upper surface 35c of the closing member 35 with a hard material, the occurrence of unevenness on the upper surface 35c is suppressed, and the state in which the friction coefficient of the upper surface 35c is small is maintained.

  Specifically, the upper surface 35c of the closing member 35 made of metal such as aluminum is subjected to an alumite treatment as an example.

  When the closing member 35 moves to the retracted position, the foreign matter 81 may be pressed against the upper surface 35 c of the closing member 35 by the lower surface of the car-side sill 31. When the upper surface 35c of the closing member 35 is not solid, this pressing force causes a recess in the upper surface 35c. When the closing member 35 moves to the retracted position in a state where the foreign object 81 is caught in the recess, the foreign object 81 is sandwiched between the upper surface 35 c of the closing member 35 and the lower surface of the car-side sill 31. By coating the upper surface 35c of the closing member 35 with a hard material of 250 HV or more, the occurrence of unevenness on the upper surface 35c is suppressed, and the foreign material 81 may be sandwiched between the closing member 35 and the car-side sill 31. It is prevented.

  Next, the operation of the elevator apparatus 1 having the above configuration will be described. In the above configuration, when the car 4 lands and the car door 25 is opened from the fully closed state, the drive mechanism 41 releases the engagement between the actuating pin 59 and the actuating member 72, and the repulsion of the actuating spring 56 By force, the closing member 35 is moved from the retracted position shown in FIG. 5 to the closing position shown in FIG. 6 to close the gap between the sills 31 and 32. With the door 25 opened and the gap between the sills 31 and 32 closed by the closing member 35, the passenger gets on and off the car 4 through the entrance 24. Under the present circumstances, as shown in FIG. 9, the foreign material 81, such as a pebble attached to a passenger | crew's shoes, may fall on the closing member 35 which is closing the clearance. In addition, what is shown with the code | symbol 83 in FIG. 9 is a soft material for shock absorbing when the illustration left end of the closing member 35 contact | abuts with the side surface of the sill 32 by the side of a hall.

  Thereafter, the door 25 is closed to move the car to the floor where the call was made. With the door closing operation of the door 25, the drive mechanism 41 moves the closing member 35 from the closing position shown in FIG. 10A toward the retracted position of the lower part of the sill 31 on the car side. FIG. 10 (b) is a diagram illustrating the middle stage of evacuation. At this time, the foreign substance 81 on the closing member 35 also tries to move in the same direction, but the foreign substance 81 is pushed by the lower part of the car-side threshold 31. The upper surface 35c of the closing member 35 is coated with a hard resin and has a small coefficient of friction. Therefore, as shown in FIG. 10 (b), the foreign object 81 pushed by the lower part of the car-side sill 31 moves so as to slide on the upper surface 35c of the closing member 35, and is pushed to the left in the figure. It falls from the upper surface 35c. That is, the foreign substance 81 is hard to enter between the closing member 35 and the lower surface of the car-side sill 31. Further, since the coefficient of friction of the upper surface 35c of the closing member 35 is small, the foreign object 81 which has entered between the closing member 35 and the lower surface of the car-side sill 31 moves back and forth between the closing position and the retracted position. There is a high possibility of sliding off the closing member 35. In the conventional apparatus, the foreign matter is sandwiched between the closing member and the car side sill, the movement of the closing member is hindered, and finally the driving mechanism of the closing member may be damaged. However, in the elevator apparatus 100 which concerns on this embodiment, since it is a structure which a foreign material is hard to be pinched | interposed between the closing member and the sill by the side of a cage | basket, durability of the elevator apparatus 100 can be improved.

(Modification 1)
In the above-described embodiment, as shown in FIGS. 5 and 6, the drive mechanism 41 is configured to always push the bracket 51 toward the landing side by the repulsive force of the actuating spring 56. However, the actuating spring Instead of 56, a return spring 66 for generating a tensile force may be provided at the same place, and the bracket 51 and the closing member 35 supported thereby may be always provided with a force for pulling back to the retracted position shown in FIG. .

  In this case, as shown in FIG. 11, the actuating pin 59 constituting the drive mechanism 41 is brought into contact with the actuating member 42 provided on the door panel 25a by the opening operation of the car door 25 to reverse the lever 58. Rotate clockwise. That is, the actuating pin 59 engages with the actuating member 42 by opening the car door 25 to a predetermined open position, and pivots the lever 58 and the pivot 45 integrated therewith in the counterclockwise direction as illustrated. Let By the operation of the drive mechanism 41, the bracket 51 and the closing member 35 supported on the upper portion thereof through the plate spring 52 are drawn out from the retracted position to the closing position.

(Modification 2)
In the above description, the case where the upper surface 35c of the closing member 35 is a surface horizontal to the floor surface has been described with reference to FIG. However, it is not necessary to limit the upper surface 35c of the closing member 35 to a surface horizontal to the floor surface. For example, as shown in FIGS. 12 (a) and 12 (b), the upper surface 35c of the closing member 35 may be inclined to become lower toward the landing side sill 32 (the left end in the figure).

  By making the upper surface 35c of the closing member 35 an inclined surface, the foreign material 81 dropped onto the upper surface 35c does not stay on the upper surface 35c, as shown in FIG. 12A, the illustrated left end side of the closing member 35. It slips down and becomes easy to be eliminated.

  Further, since the upper surface 35c of the closing member 35 is inclined so that the left end side in the drawing is lower, along with the movement of the closing member 35 to the retracted position (movement to the right in the drawing), FIG. As shown, the distance between the closing member 35 and the lower surface of the car-side sill 31 increases. That is, as the closure member 35 moves to the retracted position, the gap between the foreign matter 81 and the car-side sill 31 increases. The foreign object 81 from which the support of the car side sill 31 is removed slips off the inclined upper surface 35 c of the closing member 35 and is eliminated. As described above, there is a low possibility that the foreign object 81 sandwiched between the upper surface 35c of the closing member 35 and the lower surface of the car-side sill 31 as in the prior art will be stuck as it is. Therefore, there is a low possibility that the foreign object 81 is caught between the closing member 35 and the car-side threshold 31 and movement of the closing member 35 is inhibited. Further, at the closing position, since the distance between the closing member 35 and the lower surface of the sill 31 is narrowed, the foreign matter 81 is difficult to enter into the gap.

  The inclined upper surface 35c of the closing member 35 does not necessarily have to be a straight plane, and the distance between the upper surface 35c of the closing member 35 and the lower surface of the sill 31 along with the movement of the closing member 35 to the retracted position. It may be a curved surface as long as

  As described above, the closing member 35 of the elevator apparatus 1 according to the present embodiment is surface-treated with a hard and highly slidable material in order to reduce the coefficient of friction of the upper surface 35c. Therefore, when the closing member 35 moves from the closing position to the retracted position, the foreign object 81 in contact with the lower portion of the car-side sill 31 moves so as to slide on the upper surface 35c of the closing member 35, and the sill 32 on the landing side And slide off the top surface 35 c of the closing member 35. As a result, the foreign object 81 is sandwiched between the upper surface 35 c of the closing member 35 and the lower surface of the car-side sill 31, and the movement of the closing member 35 is prevented from being hindered. Thus, the durability of the elevator apparatus 100 is enhanced as compared to the conventional apparatus.

  In addition, the closing member 35 is surface-treated on its upper surface 35 c with a material having a hardness of 250 HV or more. By coating the upper surface 35 c of the closing member 35 with a material having high hardness, it is possible to prevent the unevenness from being formed on the upper surface 35 c of the closing member 35. This makes it easy to maintain the coefficient of friction of the upper surface 35c in a low state.

  Further, the closing member 35 of the elevator apparatus according to the second modification is inclined such that the upper surface 35 c thereof becomes lower toward the landing-side threshold 32. As a result, the foreign object 81 dropped on the upper surface 35c of the closing member 35 is likely to slide down to the sill 32 on the landing side and be eliminated without staying on the upper surface 35c.

  Although in the above description, the upper surface 35c of the closing member 35 made of metal such as aluminum is surface-treated with a hard and highly slidable material, the entire closing member 35 is hard and slid. It may be formed of a highly mobile material.

  There are also cases where the entire closing member 35 or the upper surface 35c of the closing member 35 may be formed of a material having a hardness of 250 HV or less and high slidability. For example, as described in the second modification, when the upper surface 35c of the closing member 35 is an inclined surface, the foreign object 81 dropped to the upper surface 35c of the closing member 35 is closed before the closing member 35 moves to the retracted position. This is because the possibility of falling from the member 35 is high. In such a case, surface treatment with a material having high hardness may not be required.

  In the above description, although the case where the closing member 35 is formed of metal such as aluminum is described, it is not necessary to limit the material forming the closing member 35 to metal. For example, the blocking member 35 may be formed using a resin which is excellent in processability, shock absorbing property with other parts, and the like. When the closing member 35 is formed of a resin, it may be formed of a resin such as polyacetal, polyamide, polytetrafluoroethylene (fluorine resin) or the like. Alternatively, the upper surface 35c of the closing member 35 may be coated with these resins.

  While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

DESCRIPTION OF SYMBOLS 1 ... Elevator apparatus 2 ... Entrance door 3 ... A shaft 4 ... Car 25 25 .. Car door 31 ... A sill by the side of a stand 32 ... A sill by the side of a hall 35 ... Blocking member 35c ... Top 41 ... Bracket 52 ... plate spring 56 ... actuation spring 59 ... actuation pin 66 ... return spring 81 ... foreign matter

Claims (3)

A car side sill that guides the car door provided at the entrance of the car in the opening / closing direction,
A sill on the hall side for guiding, in the opening / closing direction, a landing door provided at an entrance to the car, on each floor where the car can be seated;
A closing member capable of moving between a closing position for closing a gap formed between the car side sill and the landing side sill and a retracted position under the car side sill;
The sliding movement of the closing member is coupled to the closing member and is engageable with the operating member on the car door side with the opening operation of the car door, and the force received from the operating member by the engagement with the operating member is slid. A drive mechanism for driving the closing member in the slide movement direction by converting it into a direction;
The closing member is connected to an actuating spring receiving a force of movement to the closing position, and the drive mechanism is connected to the actuating member on the car door side with the start of the door opening from the door closing end of the car door. The engagement force is released to allow sliding movement to the closed position by the actuating spring, and the actuating member on the car door side is engaged with the movement to the closed door end of the car door, and the car door The closing member in the closing position is moved to the retracted position against the spring force of the actuating spring under the movement force.
The closing member is formed of a material having a hardness of 250 HV or more and 450 HV or less and a high slidability, at least the upper surface of the closing member.
An elevator apparatus characterized in that. The closing member is inclined so that the upper surface thereof becomes lower toward the threshold on the landing side.
Elevator device according to claim 1, characterized in that. The upper surface of the closing member is a curved surface,
The elevator apparatus according to claim 2 .

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