WO2022264245A1 - エレベータ及びそのピット作業補助装置 - Google Patents
エレベータ及びそのピット作業補助装置 Download PDFInfo
- Publication number
- WO2022264245A1 WO2022264245A1 PCT/JP2021/022622 JP2021022622W WO2022264245A1 WO 2022264245 A1 WO2022264245 A1 WO 2022264245A1 JP 2021022622 W JP2021022622 W JP 2021022622W WO 2022264245 A1 WO2022264245 A1 WO 2022264245A1
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- Prior art keywords
- elevator
- rotating member
- pit
- operation member
- restricting
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- 230000007246 mechanism Effects 0.000 claims abstract description 50
- 238000009434 installation Methods 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims description 44
- 230000002265 prevention Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
Definitions
- This disclosure relates to an elevator and its pit work auxiliary device.
- a deformable body is provided around the buffer.
- the deformable body is transformable between a first state and a second state.
- the upper end of the deformable body is positioned below the upper end of the buffer.
- the deformable body is in the second state, the upper end of the deformable body is located above the upper end of the buffer.
- the deformable body is secured to the upper end of the buffer by the securing body when in the second state. This secures a work area in the pit of the hoistway (see, for example, Patent Document 1).
- the present disclosure has been made to solve the above-described problems, and aims to obtain an elevator and a pit work assisting device thereof that can reduce the work in the pit of the hoistway.
- the elevator pit work auxiliary device is provided between a storage position in the pit of the hoistway and a regulation position above the storage position along the guide rail installed in the hoistway.
- a regulating body which is movable and which, when positioned at the regulating position, regulates movement of the car below the regulating position; an installation operation member connected to the regulating body and operable from the landing; It has a fixed side mechanism provided on the guide rail and a movable side mechanism provided on the regulating body, and regulates downward movement of the regulating body when the regulating body is moved to the regulating position.
- a stopper mechanism and a release operation member connected to the stopper mechanism and operable from the landing are provided, and the restricting body is moved from the storage position to the restricting position by an operator at the landing using the installation operation member.
- the stopper mechanism can be released from the restricting state with respect to the restricting body by using the releasing operation member by an operator at the landing.
- FIG. 1 is a schematic perspective view showing an elevator according to Embodiment 1;
- FIG. FIG. 3 is a perspective view showing a state in which the regulating body in FIG. 1 is moved to a regulating position;
- FIG. 2 is a side view showing a main part of the elevator in FIG. 1;
- FIG. 4 is a side view showing a state in the middle of moving the regulating body of FIG. 3 to a regulating position;
- FIG. 5 is a side view showing an enlarged main part of FIG. 4;
- FIG. 2 is an enlarged perspective view showing a main part of the elevator in FIG. 1;
- FIG. 7 is a perspective view showing only the stopper mechanism of FIG. 6;
- FIG. 8 is a perspective view showing a state in which the movable side mechanism of FIG.
- FIG. 10 is a configuration diagram showing a main part of a pit work assisting device according to Embodiment 2;
- FIG. 11 is a configuration diagram showing a main part of a pit work assisting device according to Embodiment 3;
- FIG. 1 is a schematic configuration diagram showing an elevator according to Embodiment 1.
- a hoistway 1 is provided with a car 2 and a counterweight (not shown).
- a counterweight not shown
- FIG. 1 the inside of the hoistway 1 is seen through.
- a pair of car guide rails 3 and a pair of counterweight guide rails 4 are installed in the hoistway 1 .
- a car 2 ascends and descends in a hoistway 1 along a pair of car guide rails 3 .
- the counterweight moves up and down in the hoistway 1 along a pair of counterweight guide rails 4 .
- the car 2 and the counterweight are suspended in the hoistway 1 by suspensions (not shown).
- a hoisting machine (not shown) is installed in a machine room (not shown) or in the hoistway 1 .
- the hoist has a drive sheave, a hoist motor, and a hoist brake.
- a suspension is wrapped around the drive sheave.
- the car 2 and counterweight move up and down in the hoistway 1 by rotating the drive sheave.
- a hoist motor rotates the drive sheave.
- the hoist brake keeps the drive sheave stationary.
- the hoist brake also brakes the rotation of the drive sheave.
- a buffer stand 5 is installed at the bottom of the pit 1a of the hoistway 1.
- the pit 1a is an area in the hoistway 1 below the floor surface 11 of the lowest floor landing.
- a shock absorber 6 is installed on the shock absorber base 5 . The shock absorber 6 absorbs the impact of the collision of the car 2 with the bottom of the pit 1a.
- a regulating body 21 is placed at the bottom of the pit 1a.
- the regulating body 21 is a rectangular frame.
- the regulation body 21 can move up and down along the pair of car guide rails 3 .
- the regulation body 21 is arranged directly below the car 2 .
- the car 2 overlaps the entire regulation body 21 when viewed from directly above.
- a pair of guide members 22 are provided on the regulating body 21 .
- Each guide member 22 is in contact with the corresponding car guide rail 3 .
- the pair of guide members 22 regulates movement of the restricting body 21 in the longitudinal direction and the width direction of the car 2 .
- the front-rear direction of the car 2 is parallel to the X-axis in FIG.
- the width direction of the car 2 is parallel to the Y-axis in FIG.
- a fixed side mechanism 23 is fixed to each car guide rail 3 .
- the regulation body 21 is movable between the storage position shown in FIG. 1 and the regulation position shown in FIG.
- the storage position is the bottom of the pit 1a.
- the restrictor 21 rests on the shock absorber base 5 when it is in the storage position.
- the regulation position is a position above the storage position.
- the restricted position is above the floor surface of the lowest floor hall and below the upper edge of the landing doorway 12 of the lowest floor hall.
- the regulating body 21 is supported by a pair of fixed side mechanisms 23 when positioned at the regulating position. Further, the restricting body 21 restricts movement of the car 2 below the restricting position when positioned at the restricting position. That is, when the restricting body 21 is positioned at the restricting position, the car 2 contacts the restricting body 21 to prevent the car 2 from moving below the restricting body 21 .
- the restricting body 21 While the worker is working in the pit 1a, the restricting body 21 is positioned at the restricting position. As a result, evacuation space for workers is secured.
- FIG. 3 is a side view showing a main part of the elevator in Fig. 1;
- FIG. 4 is a side view showing a state in the middle of moving the restricting body 21 of FIG. 3 to the restricting position.
- an installation wire 24 as an installation operation member is connected to the regulation body 21 .
- the installation wire 24 has a first end 24a and a second end 24b.
- the first end portion 24 a is connected to the restrictor 21 .
- a wire connection part 13a is provided on the landing threshold 13 of the lowest floor landing.
- the second end portion 24b is connected to the wire connection portion 13a when the regulation body 21 is positioned at the storage position.
- the state of connection between the second end portion 24b and the wire connecting portion 13a can be released from the lowest floor boarding hall by opening the landing doorway of the lowest floor boarding hall.
- the installation wire 24 can be operated from the lowest floor boarding area.
- the regulation body 21 can be pulled up from the storage position using the installation wire 24 by a worker at the lowest floor landing. From the state shown in FIG. 4, the setting wire 24 is used to further pull up the regulation body 21, or the regulation body 21 is lifted directly, so that the regulation body 21 can be moved to the regulation position.
- a storage detection switch 40 is provided at the bottom of the pit 1a.
- the storage detection switch 40 is turned on by being operated by the regulation body 21 when the regulation body 21 is positioned at the storage position.
- the regulation body 21 moves away from the storage detection switch 40, and the storage detection switch 40 is turned off.
- the automatic operation of car 2 is an operation method in which car 2 is automatically moved to a destination floor in response to calls from inside car 2 and calls from a plurality of halls.
- FIG. 5 is a side view showing an enlarged main part of FIG. Although omitted in FIG. 4 , a switch support member 41 is fixed to the car guide rail 3 . Storage detection switch 40 is supported by switch support member 41 . The switch support member 41 is configured so as not to interfere with the regulating body 21 even when the regulating body 21 is positioned at the storage position.
- FIG. 6 is an enlarged perspective view showing the main part of the elevator in FIG. 1, showing the state immediately before the restricting body 21 moves to the restricting position.
- Each fixed-side mechanism 23 of Embodiment 1 has a support plate 25 and a plurality of fixtures (not shown). The support plate 25 is fixed to the car guide rail 3 with a plurality of fixtures.
- the restricting body 21 is provided with a pair of movable side mechanisms 26.
- FIG. 6 only one of the pair of movable side mechanisms 26 is shown.
- Each movable side mechanism 26 has a mounting member 27, a rotating shaft 28, a rotating member 29, a plurality of hinges 30, an opening/closing member 31, a first restoring spring 32, and a second restoring spring 33.
- the second restoring spring 33 is not shown in FIG. 6, but is shown in FIGS. 11 and 12.
- FIG. 1 A movable side mechanism 26 has a mounting member 27, a rotating shaft 28, a rotating member 29, a plurality of hinges 30, an opening/closing member 31, a first restoring spring 32, and a second restoring spring 33.
- the second restoring spring 33 is not shown in FIG. 6, but is shown in FIGS. 11 and 12.
- the mounting member 27 is attached to the lower portion of the restricting body 21 .
- the rotating member 29 is connected to the mounting member 27 so as to be rotatable with respect to the mounting member 27 around the rotating shaft 28 .
- the rotating shaft 28 is arranged horizontally in parallel with the front-rear direction of the car 2 .
- the opening/closing member 31 is rotatably connected to the rotating member 29 via a plurality of hinges 30 .
- the rotation centers of the multiple hinges 30 are parallel to the vertical direction. That is, the opening/closing member 31 is connected to the rotating member 29 so as to be rotatable with respect to the rotating member 29 about an axis parallel to the vertical direction.
- An inclined surface 31 a is provided at the upper end of the opening/closing member 31 .
- the inclined surface 31a is inclined with respect to the horizontal plane in a downward direction continuously as the distance from the rotary member 29 increases.
- the first restoring spring 32 is provided between the restricting body 21 and the rotating member 29. Also, the first restoring spring 32 gives the rotating member 29 a force to rotate the rotating member 29 upward. In other words, the first restoring spring 32 applies force to the rotating member 29 to rotate the rotating member 29 in the direction in which the opening/closing member 31 is displaced upward.
- the first restoring spring 32 of Embodiment 1 is a tension spring.
- the mounting member 27 is provided with a detent 27a that limits the rotation range of the rotating member 29 in the direction in which the opening/closing member 31 is displaced upward. That is, the upward rotation range of the rotating member 29 is limited by the detent 27a.
- the second restoring spring 33 is provided between the rotating member 29 and the opening/closing member 31 .
- the rotating member 29 and the opening/closing member 31 are held in alignment on a straight line parallel to the width direction of the car 2 when viewed from above by the restoring force of the second restoring spring 33 .
- the second restoring spring 33 of Embodiment 1 is a tension spring.
- the rotary member 29 and the opening/closing member 31 When the rotary member 29 and the opening/closing member 31 have passed the support plate 25 upward, the rotary member 29 is returned to its original position by the first restoring spring 32, that is, the position where it intersects the support plate 25 when viewed from directly above. . Therefore, when the regulating body 21 is moved downward, the opening/closing member 31 hits the support plate 25 and the downward movement of the movable mechanism 26 is regulated by the support plate 25 .
- the pit work auxiliary device of Embodiment 1 has a regulating body 21, a pair of guide members 22, a pair of stopper mechanisms 34, and a pair of release wires 35 as release operation members.
- Each stopper mechanism 34 has a fixed side mechanism 23 and a movable side mechanism 26 . Also, the pair of stopper mechanisms 34 restricts downward movement of the restricting body 21 when the restricting body 21 is moved to the restricting position. In FIG. 6, only one of the pair of stopper mechanisms 34 is shown.
- Each release wire 35 is connected to the corresponding stopper mechanism 34 .
- FIG. 6 only one of the pair of release wires 35 is shown. Also, the pair of release wires 35 are omitted in FIGS.
- Each release wire 35 has a first end 35a and a second end 35b.
- the first end 35 a is connected to the corresponding opening/closing member 31 .
- the second end portion 35b is connected to the restrictor 21 . Also, the second end portion 35 b may be detachable from the restricting body 21 .
- FIG. 7 is a perspective view showing only the stopper mechanism 34 of FIG. 6.
- the restricting body 21 is lifted from the state of FIG. 7, the movable side mechanism 26 is also moved upward, and the inclined surface 31a hits the lower surface of the support plate 25 as shown in FIG.
- the opening/closing member 31 passes through the support plate 25 as shown in FIG.
- the restoring force of the first restoring spring 32 causes the rotating member 29 and the opening/closing member 31 to move upward, that is, counterclockwise in FIG. Rotate.
- the regulator 21 When the regulator 21 is lowered from the state shown in FIG. 9, the lower surface of the opening/closing member 31 hits the upper surface of the support plate 25 as shown in FIG. is regulated. In this state, the regulation body 21 is supported on the pair of support plates 25 . Thereby, the regulation body 21 is held at the regulation position.
- FIG. 11 is a perspective view of the stopper mechanism 34 of FIG. 10 viewed from an angle different from that of FIG. 12 is a perspective view showing a state in which the opening/closing member 31 of FIG. 11 is rotated with respect to the rotating member 29.
- FIG. 12 is a perspective view showing a state in which the opening/closing member 31 of FIG. 11 is rotated with respect to the rotating member 29.
- the opening/closing member 31 rotates with respect to the rotating member 29, and the opening/closing member 31 is displaced from above the support plate 25 to outside the support plate 25. As shown in FIG.
- the restricting body 21 can be moved from the storage position to the restricting position by using the installation wire 24 by a worker at the hall. Further, the restricting body 21 restricts movement of the car 2 below the restricting position when positioned at the restricting position.
- the stopper mechanism 34 restricts the downward movement of the restricting body 21 when the restricting body 21 is moved to the restricting position.
- the stopper mechanism 34 can be released from the restricting state of the restricting body 21 by using the release wire 35 by an operator at the landing.
- the worker can move the regulating body 21 to the regulating position by operating from the hall before working in the pit 1a, and can secure the evacuation space in the pit 1a. Further, after the work in the pit 1a, the regulation body 21 can be returned to the storage position by operating from the hall. As a result, the work in the pit 1a can be reduced, and the efficiency of the maintenance work can be improved.
- pit work assistance devices can be easily added to existing elevators.
- the evacuation space can be increased without carrying out construction work to deepen the pit 1a.
- the regulation body 21 is movable along the pair of car guide rails 3 . Therefore, the regulation body 21 can be stably moved using the existing pair of car guide rails 3 .
- an installation wire 24 is used as an installation operation member. Therefore, the weight of the installation operation member can be reduced, and the installation operation member can be easily arranged in the hoistway 1 .
- a release wire 35 is used as a release operation member. Therefore, the weight of the release operation member can be reduced, and the release operation member can be easily arranged in the hoistway 1 .
- the stopper mechanism 34 has a fixed side mechanism 23 and a movable side mechanism 26 as shown in FIG. Therefore, the downward movement of the restricting body 21 can be restricted and the restricted state of the restricting body 21 can be released with a simple configuration.
- the storage detection switch 40 is operated by the regulation body 21 when the regulation body 21 is positioned at the storage position. Therefore, with a simple configuration, it is possible to quickly detect that the regulation body 21 has left the storage position.
- FIG. 13 is a configuration diagram showing the main part of the pit work assisting device according to Embodiment 2.
- the pit work assisting device of the second embodiment has an extendable gangway 42 in addition to the same configuration as that of the first embodiment.
- the retractable ramp 42 can be extended and retracted as the restricting body 21 moves in the vertical direction.
- the telescopic ramp 42 has a ramp body 42a and a pair of connecting bodies 42b.
- a pair of connecting bodies 42b connect the upper end portion of the gangway main body 42a and the restricting body 21.
- a flexible cord-like member such as a connecting wire is used as each connecting body 42b.
- the lower end of the ramp body 42a is connected to the bottom of the pit 1a.
- FIG. 13 shows a state in which the restricting body 21 is positioned at the restricting position.
- the ramp body 42a is stretched between the regulating body 21 and the bottom of the pit 1a.
- the upper end of the gangway main body 42 a is adjacent to the landing threshold 13 .
- the worker can move between the lowest floor landing and the inside of the pit 1a using the ramp body 42a.
- the retractable ramp 42 is folded by moving the restricting body 21 from the restricting position to the storage position. At this time, the telescopic ramp 42 does not prevent the movement of the regulation body 21 from the regulation position to the storage position.
- the construction of the pit work auxiliary device and the construction of the elevator are the same as in the first embodiment, except for the telescopic ramp 42.
- FIG. 14 is a configuration diagram showing the main part of the pit work assisting device according to Embodiment 3.
- the pit work assisting device of Embodiment 3 has an intrusion prevention cover 43 in addition to the configuration similar to that of Embodiment 1 or Embodiment 2.
- FIG. The intrusion prevention cover 43 can expand and contract as the restrictor 21 moves in the vertical direction.
- the upper end of the intrusion prevention cover 43 is connected to the restrictor 21 .
- the lower end of the intrusion prevention cover 43 is connected to the bottom of the pit 1a.
- Intrusion prevention cover 43 is extended by movement of restricting body 21 to the restricting position.
- FIG. 14 shows a state in which the restricting body 21 is positioned at the restricting position.
- the entry prevention cover 43 is arranged between the work area and the entry prohibited area in the pit 1a.
- a work area is an area in which a worker works.
- the no-entry area is an area into which workers are prohibited from entering, for example, an area immediately below the counterweight.
- the intrusion prevention cover 43 is folded by moving the regulation body 21 from the regulation position to the storage position. At this time, the intrusion prevention cover 43 does not prevent the movement of the regulation body 21 from the regulation position to the storage position.
- the configuration of the pit work auxiliary device and the configuration of the elevator are the same as in the first or second embodiment.
- the installation operation member is not limited to the installation wire 24.
- the installation operation member is preferably a string-like member having flexibility.
- the release operation member is not limited to the release wire 35 . However, it is preferable that the release operation member is a flexible string-like member.
- a guide rail for guiding the movement of the regulation body 21 may be installed in the hoistway 1.
- the regulation position is not limited to the above example.
- the restriction position may be below the floor surface 11 of the lowest floor landing.
- the layout of the entire elevator is not particularly limited.
- the roping scheme may be a 1:1 roping scheme or a 2:1 roping scheme.
- the lift area of the counterweight is arranged behind the lift area of the car 2 as viewed from the landing.
- the lift area of the counterweight may be arranged on the side of the lift area of the car 2 as viewed from the landing.
- the elevator may be an elevator with a machine room, an elevator without a machine room, a double-deck elevator, a one-shaft multi-car elevator, or the like.
- the one-shaft multi-car system is a system in which an upper car and a lower car placed directly below the upper car independently ascend and descend a common hoistway.
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Abstract
Description
実施の形態1.
図1は、実施の形態1によるエレベータを示す概略の構成図である。図1において、昇降路1内には、かご2と、図示しない釣合おもりとが設けられている。図1では、昇降路1内が透視して示されている。
次に、図13は、実施の形態2によるピット作業補助装置の要部を示す構成図である。実施の形態2のピット作業補助装置は、実施の形態1と同様の構成に加えて、伸縮式タラップ42を有している。伸縮式タラップ42は、規制体21の上下方向への移動に伴って伸縮可能である。
次に、図14は、実施の形態3によるピット作業補助装置の要部を示す構成図である。実施の形態3のピット作業補助装置は、実施の形態1又は実施の形態2と同様の構成に加えて、侵入防止カバー43を有している。侵入防止カバー43は、規制体21の上下方向への移動に伴って伸縮可能である。
Claims (10)
- 昇降路に設置されているガイドレールに沿って、前記昇降路のピット内の保管位置と、前記保管位置よりも上方の位置である規制位置との間で移動可能であり、前記規制位置に位置しているときに、前記規制位置よりも下方へのかごの移動を規制する規制体、
前記規制体に接続されており、かつ乗場から操作可能である設置操作部材、
前記ガイドレールに設けられている固定側機構と、前記規制体に設けられている可動側機構とを有しており、前記規制体を前記規制位置に移動させたときに前記規制体の下方への移動を規制するストッパ機構、及び
前記ストッパ機構に接続されており、かつ前記乗場から操作可能である解除操作部材
を備え、
前記規制体は、前記乗場にいる作業員により、前記設置操作部材を用いて、前記保管位置から前記規制位置に移動可能になっており、
前記ストッパ機構は、前記乗場にいる作業員により、前記解除操作部材を用いて、前記規制体に対する規制状態を解除可能になっているエレベータのピット作業補助装置。 - 前記ガイドレールは、前記かごの昇降を案内するかごガイドレールである請求項1記載のエレベータのピット作業補助装置。
- 前記設置操作部材は、可撓性を有する紐状の部材である請求項1又は請求項2に記載のエレベータのピット作業補助装置。
- 前記解除操作部材は、可撓性を有する紐状の部材である請求項1から請求項3までのいずれか1項に記載のエレベータのピット作業補助装置。
- 前記固定側機構は、前記ガイドレールに固定されている支持板を有しており、
前記可動側機構は、
前記規制体に取り付けられている取付部材と、
水平に配置されている軸を中心として前記取付部材に対して回転可能に、前記取付部材に連結されている回転部材と、
前記回転部材を上向きに回転させる力を、前記回転部材に与えている復元ばねと
を有しており、
前記回転部材の上向きの回転範囲は、制限されており、
前記規制体が上方へ移動する際には、前記回転部材は、前記支持板により、前記復元ばねに抗して下向きに回転されて、前記支持板を通過し、
前記回転部材が前記支持板を上方へ通過した状態では、前記復元ばねにより前記回転部材が元の位置に戻っていることによって、前記可動側機構の下方への移動が前記支持板によって規制される請求項1から請求項4までのいずれか1項に記載のエレベータのピット作業補助装置。 - 前記可動側機構は、
鉛直方向に平行な軸を中心として前記回転部材に対して回転可能に、前記回転部材に連結されており、かつ前記解除操作部材が接続されている開閉部材
をさらに有しており、
前記解除操作部材が操作されて前記開閉部材が前記回転部材に対して回転されることにより、前記ストッパ機構による前記規制体に対する規制状態が解除される請求項5記載のエレベータのピット作業補助装置。 - 前記規制体が前記保管位置に位置しているときに、前記規制体によって操作される保管検出スイッチ
をさらに備えている請求項1から請求項6までのいずれか1項に記載のエレベータのピット作業補助装置。 - 前記規制体に連結されており、前記規制体の上下方向への移動に伴って伸縮可能な伸縮式タラップ
をさらに備えている請求項1から請求項7までのいずれか1項に記載のエレベータのピット作業補助装置。 - 前記規制体に連結されており、前記規制体の上下方向への移動に伴って伸縮可能な侵入防止カバー
をさらに備え、
前記侵入防止カバーは、前記規制体が前記規制位置に移動することにより伸長され、前記ピット内における作業領域と侵入禁止領域との間に配置される請求項1から請求項8までのいずれか1項に記載のエレベータのピット作業補助装置。 - 請求項1から請求項9までのいずれか1項に記載のピット作業補助装置
を備えているエレベータ。
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PCT/JP2021/022622 WO2022264245A1 (ja) | 2021-06-15 | 2021-06-15 | エレベータ及びそのピット作業補助装置 |
CN202180099134.1A CN117425609A (zh) | 2021-06-15 | 2021-06-15 | 电梯及其底坑作业辅助装置 |
JP2023528786A JP7429088B2 (ja) | 2021-06-15 | 2021-06-15 | エレベータ及びそのピット作業補助装置 |
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