JP2019006563A - Elevator device - Google Patents

Abstract

To provide an elevator device preventing vibration sound due to uneven deformation of a flexible member which is an airtight device between a car door and a car floor and being excellent in comfort.SOLUTION: There is provided an elevator device comprising: an air pressure control device controlling air pressure within a car; a door shoe bracket 19 arranged in a first opposing gap 16 formed between a lower end of one of panel members 10a, 10b and a car floor 14 and guiding movement of a car door 8 along a guide groove 22 provided in a car sill 15; a bracket fixing plate 12 fixing the door shoe bracket 19 to the car door 8; and an airtight device 24 arranged in a second opposing gap 17 formed between the lower end of the other panel member located inside the car and the car floor 14 and sealing the second opposing gap 17 by a flexible member elastically deformed according to pressure change. The bracket fixing plate 12 has an opening 23 forming air flow that makes deformation of the flexible member in its longitudinal direction substantially uniform from the outside of the car toward the airtight device 24.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a structure of a car of an elevator apparatus, and more particularly to a technique that is effective when applied to an elevator apparatus provided with a pressure control device that controls the pressure inside the car.

  Since an elevator is a moving means in which a passenger moves in a sealed space, it is required to minimize vibration and noise that cause the passenger to feel uneasy. Also, from the viewpoint of the comfort of the surroundings, it is desirable that vibration and noise during elevator travel are as small as possible.

  On the other hand, with the increase in construction of skyscrapers, elevators are required to have higher speed. As a problem specific to high-speed elevators, there is a so-called wind noise, which is caused by turbulence of the air flow around the car and pressure difference caused when the car travels at high speed in the hoistway. It is known that the energy of wind noise increases exponentially with respect to the traveling speed of the elevator, and wind noise countermeasures are an important technology especially for ultra-high speed elevators for high-rise buildings.

  As background art of this technical field, for example, there is JP-A-2003-81561 (Patent Document 1). In this publication, “an elevator having a main rope that lifts and lowers a passenger car that lifts and lowers in a hoistway, a hoist that winds up the main rope, and an atmospheric pressure control device that controls the atmospheric pressure in the passenger car. The car includes a car door that opens and closes an entrance, a car sill that is provided on a car floor and guides the movement of the car door, and a pressure that is provided at a lower end of the car door and is provided by the pressure control device. And / or an airtight device that hermetically seals the gap between the lower end of the car door and the car sill by a flexible member that elastically deforms in response to reduced pressure. .

JP 2003-81561 A

  In the conventional general elevator apparatus, as described in Patent Document 1, a flexible member is disposed so as to seal a gap between the lower end of the car door and the car sill, and the flexible member is deformed by a pressure difference. By adopting a structure that improves the airtightness of the car room, it is impossible to obtain uniform deformation in the entire longitudinal direction of the flexible member. It was found that (abnormal sound) may occur.

  Accordingly, an object of the present invention is to prevent vibration noise caused by uneven deformation of a flexible member in an elevator apparatus in which a flexible member that is an airtight device is disposed between a car door and a car floor. It is in providing the elevator apparatus excellent in comfort.

  In order to solve the above-described problems, the present invention is configured to include a car that a passenger gets on and off, an air pressure control device that controls the air pressure in the car, and a pair of panel members that are arranged to face each other. A car door that opens and closes a car doorway, a car sill that is provided on the car floor of the car and guides the movement of the car door, and between a lower end of one of the panel members and the car floor A door shoe bracket that is disposed in a first facing gap formed in the guide and guides the movement of the car door along a guide groove provided in the car sill, and a bracket that fixes the door shoe bracket to the car door A flexible plate that is disposed in a second opposing gap formed between the fixed plate and the other lower end of the panel member located inside the car and the car floor, and elastically deforms in response to atmospheric pressure fluctuations. For sex members And the bracket fixing plate has an opening for forming an air flow that substantially uniformly deforms the flexible member in the longitudinal direction from the outside of the car toward the hermetic device. It is characterized by having.

  In addition, the present invention is configured to include a car on which a passenger gets on and off, a pressure control device that controls the pressure in the car, and a pair of panel members arranged to face each other, and opens and closes the entrance of the car A first car formed between a car door, a car sill that is provided on a car floor of the car, and guides the movement of the car door, and a lower end of one of the panel members and the car floor. A door shoe bracket that guides movement of the car door along a guide groove provided in the car sill, a bracket fixing plate that fixes the door shoe bracket to the car door, and the ride Airtight sealed by a flexible member that is disposed in a second opposing gap formed between the other lower end of the panel member located inside the car and the car floor and elastically deforms in response to atmospheric pressure fluctuations apparatus The bracket fixing plate has an opening for forming an air flow that substantially uniforms deformation in the longitudinal direction of the flexible member from the inside of the car toward the airtight device. .

  Advantageous Effects of Invention According to the present invention, in an elevator apparatus in which a flexible member that is an airtight device is disposed between a car door and a car floor, vibration noise caused by uneven deformation of the flexible member can be prevented and comfortable. A highly efficient elevator device can be realized.

  Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a schematic block diagram of the elevator apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the external appearance of the passenger car 7 in FIG. It is a partial cross section figure which shows the lower part of the car door 8 of the passenger car 7 in FIG. FIG. 4 is an enlarged view around the airtight device 24 in FIG. 3. It is a front view (A-A 'direction arrow directional view) of the panel member 10a in FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same components are denoted by the same reference numerals, and detailed description of the overlapping portions is omitted.

  First, with reference to FIG. 1, the elevator apparatus used as the object of the present invention will be described. FIG. 1 is a schematic configuration diagram of an elevator apparatus according to the present embodiment.

  In a machine room 2 formed at the top portion of the hoistway 1, a hoisting machine 3 having a sheave around which a plurality of main ropes 4 are wound is fixed to the floor surface. One end of the main rope 4 extending from the sheave is connected to the upper end of the counterweight 6 via a warp pulley 5, and the other end of the main rope 4 is connected to the upper portion of the car 7. The car 7 is provided with a car door 8 that can be opened and closed. After the car 7 stops on the stop floor, the car door 8 and the landing door 32 open, and passengers get on and off the car 7. A plurality of openings 23 to be described later are arranged on the lower side of the car door 8.

  In addition, although a present Example demonstrates using the example of the traction type elevator by which a machine room is arrange | positioned at the upper part of a hoistway as shown in FIG. 1, the scope of application of this invention is limited to this. Instead, a machine room-less type traction type elevator in which a control panel or the like is arranged in a hoistway, a winding drum type elevator in which a rope is wound around a winding drum (drum), a linear motor type elevator, and the like are also included in the scope of the invention.

  FIG. 2 is a perspective view showing an appearance of a car 7 which is a main part of the elevator apparatus shown in FIG. The car 7 has a car door 8 for entrance / exit on the front side, and an atmospheric pressure control device 9 including an intake blower and an exhaust blower is provided outside the ceiling. When the car 7 moves up and down in the hoistway 1, the atmospheric pressure control device 9 controls the intake blower and the exhaust blower to pressurize and depressurize the car 7, thereby changing the atmospheric pressure per unit time. The amount is kept constant so that passengers in the car 7 do not feel uncomfortable due to changes in atmospheric pressure.

  The car 7 is provided with a car door 8 that can be opened and closed. Since the car door 8 is structured to open and close while sliding, the car can be seen from the vicinity of the sliding portion even when the car door 8 is closed. 7 communicates with each other, and the atmospheric pressure control efficiency of the atmospheric pressure control device 9 is reduced. Therefore, the vicinity of the car door 8 in the car 7 has an airtight structure as described below. A plurality of openings 23 are provided on the lower side of the car door 8 so as to extend in the short direction of the car door 8.

  FIG. 3 is a partial cross-sectional view showing a lower portion of the car door 8 in the car 7 shown in FIG. A reinforcing member 11 formed to extend to both end portions in the width direction of the panel members 10a and 10b at a lower portion between the pair of panel members 10a and 10b arranged to face each other at a predetermined distance, and the reinforcing member 11 A cage fixing plate 12 extending to a further lower portion of the car is sandwiched and fixed by bolts 13 to form a car door 8.

  A car floor 14 and a car sill 15 connected to the car floor 14 are arranged at the lower part of the car door 8. For this reason, a facing gap 16 is formed between the bracket fixing plate 12 and the car sill 15, and a facing gap 17 is formed between the panel member 10 b and the car floor 14. A space 18 formed between the two panel members 10a and 10b communicates with the outside of the car 7 on the left side in FIG. On the other hand, the space 18 and the interior of the car on the right side in FIG.

  An upper end portion of a door shoe bracket 19 having substantially the same width direction dimension as the bracket fixing plate 12 is fixed to a lower end portion of the bracket fixing plate 12 by a plurality of bolts 20 provided in the horizontal direction. A door shoe 21 disposed at the lower portion of the car door 8 is integrally coupled to the lower end portion of the door shoe bracket 19 through the facing gap 16. The door shoe 21 is fitted so as to be movable while sliding along a guide groove 22 formed in the car sill 15. Thus, the car door 8 is configured to be capable of opening and closing while the door shoe 21 is guided by the car sill 15 (guide groove 22).

  In the bracket fixing plate 12 described above, a plurality of openings 23 are formed in a portion located in the vicinity of the upper portion of the facing gap 16 as will be described in detail later. The space 18 is communicated with the outside of the car 7 on the left side in FIG. An airtight device 24 capable of sealing the facing gap 17 in the closed state of the car door 8 is disposed in the facing gap 17 formed between the lower portion of the panel member 10b and the car floor 14 as will be described in detail later.

  FIG. 4 is an enlarged view around the airtight device 24 described above. The lower part of the car door 8 is attached to the lower end part of the bracket fixing plate 12 extending to substantially both ends in the width direction of the panel member 10a as described above by a plurality of bolts 20 arranged substantially in the horizontal direction. The door shoe bracket 19 is fixed.

  In the vicinity of the door shoe bracket 19 in the bracket fixing plate 12, a plurality of openings 23 described above that are discrete in the substantially horizontal direction, which is the longitudinal direction of the bolt 20, are formed. Each opening 23 is for more actively communicating between the outside of the car and the space 18 formed between the panel members 10a and 10b. The size, shape, interval, and the like of the openings 23 are determined so that the mechanical strength of the bracket fixing plate 12 is not greatly reduced by the formation of the openings 23. In the bracket fixing plate 12, the overall width direction region dimension in which each opening 23 is formed is substantially equal to the longitudinal direction size of the airtight device 24. In FIG. 4, the airtight device 24 is indicated by a flexible member 25 and a folded portion 31.

  These openings 23 are preferably discretely formed at substantially equal intervals along the upper end portion of the door shoe bracket 19 in the bracket fixing plate 12 in the vicinity of or near the upper end portion of the door shoe bracket 19. Is desirable. If each opening 23 is formed in such a position, since the lower side of the door shoe bracket 19 is inserted through the opposing gap 16, the airflow passing through the opposing gap 16 is affected, and eventually the airtight device 24. It can be compensated not to adversely affect the operation.

  That is, when each opening 23 does not exist, the air current passing through the facing gap 16 is blocked by the door shoe bracket 19, and the airtight device 24 configured in the facing gap 17 is affected as will be described later. When each opening 23 is not formed, the airtight device 24 does not deform uniformly in the longitudinal direction due to the influence of the wind force or the wind speed passing through the facing gap 16, and vibrates. ) Will occur.

  However, as described above, the opening 23 is formed to communicate between the outside of the car 7 and the space 18 formed between the panel members 10a and 10b. For this reason, even if the door shoe bracket 19 is present in the facing gap 16, the airtight device 24 (folded portion 31) disposed in the facing gap 17 operates uniformly in the entire width direction by the airflow passing through the opening 23. As a result, vibration in the same part is suppressed, and generation of vibration sound (abnormal sound) is prevented.

  The lower structure of the car door 8 will be described in detail with reference to FIG. FIG. 5 is a front view (A-A ′ direction arrow view) of the panel member 10 a. The airtight device 24 extends over the entire width direction of the lower end of the car door 8 and is elastically deformed according to the pressurization and decompression in the car 7 by the air pressure control device 9 shown in FIG. 17 includes a flexible member 25 that seals 17 and a folded portion 31 (see FIG. 4). The hermetic device 24 is fixed to the panel member 10b by bolts or the like via a bracket 26 having an L-shaped cross-sectional shape and fixed to the inside of the lower end of the panel member 10b.

  The flexible member 25 described above has a folded portion 31 having a substantially U-shaped cross section in which a folded portion is disposed inside the car 7. The folded portion 31 having a substantially U-shaped cross section in the flexible member 25 is located inside the car 7 on the right side of FIG. 4 in the facing gap 17 formed between the lower portion of the panel member 10 b and the car floor 14. Has been placed. The upper end portion of the flexible member 25 has a necessary mounting strength, but the folded portion 31 having a substantially U-shaped cross section is added to the inside of the car 7 by the atmospheric pressure control device 9 shown in FIG. It is formed so as to be flexible so that it can be elastically deformed according to pressure and reduced pressure.

  When the inside of the car 7 is pressurized by the atmospheric pressure control device 9 shown in FIG. 2 with the car door 8 of the car 7 closed, in the facing gap 17 between the flexible member 25 and the car floor 14, An airflow that flows from the inside to the outside of the car 7 is formed. Under the influence of the wind pressure and wind speed at this time, the open-side end portion of the folded portion 31 having a substantially U-shaped cross section is widened, and the opposing gap 17 is closed, and the same portion is sealed. Thereafter, due to the pressure difference between the inside and the outside of the car 7, the folded portion 31 having a substantially U-shaped cross section is maintained in the same state, and the airtightness of the facing gap 17 is maintained.

  On the other hand, when the inside of the car 7 is depressurized by the atmospheric pressure control device 9 shown in FIG. 2, in the facing gap 17 between the folded portion 31 having a substantially U-shaped cross section in the flexible member 25 and the car floor 14, the car from the outside. 7 is formed. At this time, if the opening 23 does not exist, the airflow flowing from the outside of the car 7 is affected by the presence of the door shoe bracket 19 disposed in the facing gap 16, so that the cross section of the flexible member 25 is substantially omitted. There is a possibility that variation occurs in the deformation in the longitudinal direction of the letter-shaped folded portion 31.

  However, as described above, the bracket fixing plate 12 has a plurality of openings 23 formed at predetermined intervals, and the space 18 formed between the outside of the car 7 and the panel members 10a and 10b by the openings 23. Is communicated. For this reason, the airflow passing through the facing gap 17 from the opening 23 through the space 18 without being adversely affected by the door shoe bracket 19 is effectively formed in the entire longitudinal direction of the folded portion 31 having a substantially U-shaped cross section. Is done.

  Accordingly, the folded portion 31 having a substantially U-shaped cross section receives the wind speed and pressure of the airflow that passes through the facing gap 17 and flows into the car 7, and has a substantially U-shaped cross section in the flexible member 25. There is no variation in the longitudinal direction of the folded portion 31, and the open end of the folded portion 31 having a substantially U-shaped cross section is widened to close the opposing gap 17, thereby stopping the airflow. Thereafter, the same state is maintained by the pressure difference between the inside and the outside of the car 7, and the airtightness of the facing gap 17 is maintained.

  Moreover, since the bracket fixing plate 12 has a configuration in which a plurality of discrete openings 23 are formed along the longitudinal direction at the lower portion thereof, the mechanical strength of the bracket fixing plate 12 is not lowered. In addition, since the opening 23 is formed in the bracket fixing plate 12 in the vicinity of the door shoe bracket 19, the airflow toward the facing gap 17 has the same direction as when the airflow is drawn from the facing gap 16. Can be formed.

  For this reason, the folded portion 31 having a substantially U-shaped cross section in the flexible member 25 of the airtight device 24 has an air flow from the outside to the inside of the car 7 as well as deformation due to an air flow from the inside of the car 7 to the outside. Can be effectively deformed. Therefore, there is no bias in the directionality of the airflow, and in any case, the folded portion 31 having a substantially U-shaped cross section can be effectively and reliably deformed to obtain a highly reliable sealed structure.

  If the size of the opening 23 is too small, the pressure loss increases and it is difficult to form an air flow. On the other hand, if the size of the opening 23 is too large, the wind passes but the wind speed decreases and the airtight device 24 is flexible. Since the wind force applied to the sexual member 25 becomes small, it is desirable to determine the size, shape, interval, etc. of the openings 23 in consideration of these factors.

  In the elevator apparatus with an atmospheric pressure control device as shown in FIG. 2, an airtight device 24 is provided to perform air pressure control by making the car 7 airtight during traveling. Since the car door 8 is configured to open and close while sliding, the airtight device 24 cannot be closed when the car door 8 is opened or closed, and is opened due to a pressure difference during traveling. It is sealed using airflow.

  In this type of elevator apparatus with an atmospheric pressure control device, control is performed so that the internal / external pressure difference of the car 7 by the atmospheric pressure control device 9 is reduced at the maximum elevator speed. The opposing gap 17 accompanied by the flow of the airflow is generated in the same portion, and the noise outside the car enters from the opposing gap 17 and the noise in the car 7 is increased.

  However, according to the present embodiment, as described above, an air flow can be effectively formed through the opening 23 without being affected by the door shoe bracket 19 disposed in the facing gap 16. For this reason, the airtight device 24 arranged in the facing gap 17 is in an airtight state with good responsiveness to atmospheric pressure fluctuations in the car 7, and the airtightness in the car 7 can be easily secured. Therefore, it is possible to effectively block the generation of vibration sound (abnormal sound) or the entry of external noise.

  In the preferred embodiment, a plurality of openings 23 are formed in the lower part of the bracket fixing plate 12 on the side of the door shoe bracket 19 so that the size, number, spacing, etc. of the bracket fixing plate 12 can be adjusted by adjusting the size, number, interval, etc. There is no reduction in strength. Moreover, since the opening 23 can form an air flow toward the counter gap 17 with the same directionality as when the air flow is drawn from the counter gap 16, the cross section of the flexible member 25 of the airtight device 24. The substantially U-shaped folded part 31 can be effectively and reliably deformed to obtain a sealed structure.

  On the other hand, although it is conceivable to form an opening in the door shoe bracket 19, the mechanical strength of the door shoe bracket 19 is lowered or the other configuration is affected because the door shoe bracket 19 is used in a narrow space. Will end up. On the other hand, when the opening 23 is formed in the lower part of the bracket fixing plate 12, the same door shoe bracket 19 is used as before, and the door shoe 21 at the lower end of the car door 8 is formed in the car sill 15. While being able to move favorably and reliably along the guide groove 22 made, a highly reliable airtight elevator apparatus can be obtained with a simple configuration.

  In this embodiment, as the airtight device 24, the structure shown in FIG. 3 and FIG. 5 is exemplified, but another structure in which an airtight structure is obtained by using the airflow flowing through the facing gap 17 is used. You can also

  As described above, in the elevator apparatus of the present invention, an air flow is applied to the bracket fixing plate 12 from the outside of the car 7 toward the airtight device 24 so that the deformation in the longitudinal direction of the flexible member 25 is substantially uniform. Opening 23 is formed.

  According to such a configuration, even if the door shoe bracket 19 is disposed in the facing gap 16, a stable airflow can be formed through the opening 23, and the deformation of the flexible member 25 in the longitudinal direction can be made almost uniform. Thus, a vibration sound (abnormal sound) is generated by the vibration of the flexible member 25 due to the fact that uniform deformation cannot be obtained in the entire longitudinal direction of the flexible member 25, or from the outside of the car 7. It is possible to reliably prevent noise from entering the car 7.

  In the present invention, in addition to the above-described configuration, a plurality of openings 23 are discretely provided on the side of the door shoe bracket 19 in the bracket fixing plate 12 along the longitudinal direction of the opposing gap 16 (short direction of the car door 8). Individually formed.

  According to such a configuration, a plurality of openings 23 can be formed along the longitudinal direction of the opposed gap 16 without extremely reducing the mechanical strength of the bracket fixing plate 12 by forming the openings 23. The deformation in the longitudinal direction of the flexible member 25 can be made substantially uniform.

  Further, in the present invention, in addition to the above-described configuration, the flexible member 25 has a folded portion 31 having a substantially U-shaped cross section in which a folded portion is disposed inside the car 7.

  According to such a configuration, the elevator apparatus that controls the atmospheric pressure in the car 7 effectively captures the airflow generated in order to perform the atmospheric pressure control in the car 7, and is folded in a substantially U-shaped cross section. The part 31 can be reliably deformed to obtain a sealed state.

  In addition, this invention is not limited to an above-described Example, Various modifications are included. For example, the above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described. Further, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Hoistway, 2 ... Machine room, 3 ... Hoisting machine, 4 ... Main rope, 5 ... Warping pulley, 6 ... Counterweight, 7 ... Riding car, 8 ... Car door, 9 ... Pressure control apparatus, 10a, 10b DESCRIPTION OF SYMBOLS ... Panel member, 11 ... Reinforcement member, 12 ... Bracket fixing plate, 13 ... Bolt, 14 ... Car floor, 15 ... Car sill, 16 ... (1st) opposing gap, 17 ... (2nd) opposing gap, 18 ... Space part, 19 ... Door shoe bracket, 20 ... Bolt, 21 ... Door shoe, 22 ... Guide groove, 23 ... Opening, 24 ... Airtight device, 25 ... Flexible member, 26 ... Bracket, 31 ... Folding part, 32 ... Landing door.

Claims (8)

The rides that passengers get on and off,
An atmospheric pressure control device for controlling the atmospheric pressure in the car;
A car door configured to open and close the entrance of the car;
A car sill that is provided on the car floor of the car and guides the movement of the car door;
It arrange | positions at the 1st opposing clearance gap formed between the one lower end part of the said panel members and the said car floor, and guides the movement of the said car door along the guide groove provided in the said car sill. A door shoe bracket;
A bracket fixing plate for fixing the door shoe bracket to the car door;
Sealed by a flexible member that is disposed in a second opposing gap formed between the other lower end of the panel member located inside the car and the car floor and elastically deforms in response to atmospheric pressure fluctuations An air-tight device,
The elevator apparatus according to claim 1, wherein the bracket fixing plate has an opening that forms an air flow that substantially uniformly deforms the flexible member in a longitudinal direction from the outside of the car toward the airtight device. The elevator apparatus according to claim 1,
2. The elevator apparatus according to claim 1, wherein a plurality of the openings are discretely formed in the vicinity of the door shoe bracket of the bracket fixing plate along the longitudinal direction of the first facing gap. The elevator apparatus according to claim 1 or 2,
The elevator apparatus according to claim 1, wherein the flexible member includes a folded portion having a substantially U-shaped cross section in which a folded portion is disposed inside the passenger car. The elevator apparatus according to any one of claims 1 to 3,
The elevator apparatus, wherein the atmospheric pressure control device is an exhaust blower provided on a ceiling of the car. The rides that passengers get on and off,
An atmospheric pressure control device for controlling the atmospheric pressure in the car;
A car door configured to open and close the entrance of the car;
A car sill that is provided on the car floor of the car and guides the movement of the car door;
It arrange | positions at the 1st opposing clearance gap formed between the one lower end part of the said panel members and the said car floor, and guides the movement of the said car door along the guide groove provided in the said car sill. A door shoe bracket;
A bracket fixing plate for fixing the door shoe bracket to the car door;
Sealed by a flexible member that is disposed in a second opposing gap formed between the other lower end of the panel member located inside the car and the car floor and elastically deforms in response to atmospheric pressure fluctuations An air-tight device,
The elevator apparatus according to claim 1, wherein the bracket fixing plate has an opening that forms an air flow that substantially uniformly deforms the flexible member in the longitudinal direction from the inside of the car toward the airtight device. The elevator apparatus according to claim 5,
2. The elevator apparatus according to claim 1, wherein a plurality of the openings are discretely formed in the vicinity of the door shoe bracket of the bracket fixing plate along the longitudinal direction of the first facing gap. The elevator apparatus according to claim 5 or 6,
The elevator apparatus according to claim 1, wherein the flexible member includes a folded portion having a substantially U-shaped cross section in which a folded portion is disposed inside the passenger car. The elevator apparatus according to any one of claims 5 to 7,
The elevator apparatus characterized in that the air pressure control device is an intake blower provided on a ceiling of the car.

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