JP2006137574A - Sill clearance shielding device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To increase the strength of a shielding plate, solve problems on the safety of the shielding plate and traveling capability even if erroneous leveling is raised due to assembly error when an elevator landingly stops, and store the shielding plate in a protected manner when the shielding plate is not used. <P>SOLUTION: This sill clearance shielding device comprises a rotating means 11 in which the base end part 7a of the shielding plate 7 is vertically rotatably installed on a car sill 5 side, a support part 10 supporting the tip part 7b of the shielding plate 7 is formed on a landing sill 4 side, and the shielding plate 7 is rotated upward C when an elevator door 3 is closed to store it to the car sill 5 side and, on the other hand, the shielding plate 7 is rotated downward B when the elevator door 3 is opened to close a sill clearance 6 and support the tip part 7b of the shielding plate 7 by the support part 10 from the underside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator sill gap shielding device, and more particularly to a shielding plate that shields a sill gap between a landing sill and a basket sill only when the car stops at the landing and the elevator door opens. It is.

  In general, in order for the riding basket to move up and down, it is necessary to provide a certain gap between the platform and the riding basket. For this reason, when the car stops at the landing and the elevator door is open, a sill gap is created between the landing sill and the car sill. It is dangerous to get caught. There is also a risk that small articles may fall into the pit through the sill gap.

  Therefore, conventionally, there is known a method in which a shielding plate for shielding a sill gap is cantilevered on a landing sill and the shielding plate can be moved back and forth toward the sill gap (see, for example, Patent Document 1).

However, the conventional shielding plate is only supported in a cantilevered manner relative to the landing sill, so that when the person, wheelchair, trolley, etc. pass, the shielding plate may be deformed or depressed by weight. In addition, there is a problem that it cannot be used for a long time, and the shielding plate moves in the horizontal direction to shield the sill gap, so if the landing stops due to assembly error or manufacturing error, etc. If there is a level error between the basket threshold, the shielding plate becomes a stepped surface, which hinders the traveling of people and wheelchairs.
JP-A-8-333073

  The present invention has been invented in view of the above-mentioned conventional problems, and increases the strength of the shielding plate so that a person, a wheelchair, a carriage, etc. can pass smoothly, and temporarily stops due to an assembly error or the like. There is no problem in safety and running performance even if there is a level deviation between the platform sill and the basket sill, and when the shield plate is not used, the elevator sill gap is shielded so that it can be stored while protecting the shield plate It is an object to provide an apparatus.

  In order to solve the above-mentioned problems, the present invention provides a sill gap between the platform sill 4 and the cage sill 5 at the lower part of the platform entrance and exit only when the platform 1 stops landing on the platform 2 and the elevator door 3 opens. 6 is an elevator sill gap shielding device in which 6 is closed by a shielding plate 7, and a base end portion 7a of the shielding plate 7 is rotatably attached to the cage sill 5 side, and the landing sill 4 side Is provided with a support portion 10 for supporting the distal end portion 7b opposite to the base end portion 7a of the shielding plate 7, and when the elevator door 3 is closed, the shielding plate 7 is rotated upward C and stored on the basket sill 5 side. On the other hand, when the elevator door 3 is opened, the shielding plate 7 is rotated downward B to close the sill gap 6 and the distal end portion 7b of the shielding plate 7 is supported by the support portion 10 from below. It is characterized in that a 11.

  With such a configuration, when the shielding plate 7 closes the sill gap 6, the tip portion 7 b of the shielding plate 7 is bridged over the support portion 10 of the landing sill 4, so that the shielding plate 7 is supported at both ends. Thus, the strength of the shielding plate 7 is improved as compared with the conventional cantilever-supported state, so that it can be prevented from being deformed or depressed by the weight of a person, a wheelchair, a carriage or the like. Further, since the shielding plate 7 is rotated from above C to close the sill gap 6, even if a level deviation occurs between the landing sill 4 and the basket sill 5 when the landing is stopped due to an assembly error or the like, the shielding plate 7 Since it is spanned from the basket sill 5 to the support portion 10 of the landing sill 4, the shielding plate 7 does not have a level difference as in the prior art, and a person, a wheelchair or the like can pass over the shielding plate 7 without any trouble. Further, when the shielding plate 7 is not used, the shielding plate 7 can be stored in the basket sill 5 side in an upward posture, so that the storage space can be made compact and the shielding plate 7 can be protected from being damaged during the raising and lowering of the riding basket 1. It becomes like this.

  The shielding plate 7 is preferably urged downward by its own weight. In this case, it is not necessary to separately provide a mechanism for driving the shielding plate 7 downward B, and the configuration of the rotating means 11 can be simplified.

  Further, a sliding member 17 is provided at a side end portion 7c of the shielding plate 7 in the entrance / exit width direction W, and the rotating means 11 is disposed on the side of the elevator door 3 facing the sliding member 17 so as to rotate the shielding plate 7. The opening / closing lever 18 is mounted on the front / rear axis 9 orthogonal to the moving shaft 8 so as to be rotatable up and down, and the surface of the opening / closing lever 18 facing the sliding member 17 is parallel to the traveling direction A of the elevator door 3. The inclined surface 23 extends and is inclined so as to be located upward from the end portion P2 on the closing side A2 of the elevator door 3 toward the end portion P1 on the opening side A1, and when the elevator door 3 is closed, the sliding member 17 is provided. Is moved from the end portion P2 on the closed side A2 of the inclined surface 23 to the end portion P1 on the open side A1, so that the shielding plate 7 is rotated upward C. On the other hand, when the elevator door 3 is opened, the sliding member 17 is inclined. End P of open side A1 of 23 When the elevator door 3 is closed, the inclined surface 23 and the sliding member are configured so that the shielding plate 7 is rotated downward B to close the sill gap 6 by moving from the end to the end P2 of the closing side A2. It is preferable that a buffer spring 19 is provided for alleviating the impact caused by the collision with the motor 17. In this case, since the shielding plate 7 is rotated up and down using the movement of the opening / closing lever 18 following the opening and closing of the elevator door 3, no electric parts such as a motor for rotating the shielding plate 7 are required. Therefore, the structure of the rotation means 11 can be further simplified. In addition, when the opening / closing lever 18 rotates the shielding plate 7 upward C, the inclined surface 23 of the opening / closing lever 18 and the sliding member 17 collide with each other. Since the sound can be turned off, it is possible to prevent an unpleasant noise from occurring every time the elevator door 3 is closed.

  In the present invention, since the shielding plate is in a state where the shielding plate is supported at both ends in a state where the shielding gap is closed, the strength of the shielding plate is increased as compared with the case where the conventional cantilever is supported. This allows people, wheelchairs, carts, etc. to pass smoothly, and the shielding plate rotates from above to close the sill gap, so if there is an assembly error, etc. Even if a level deviation occurs, the shielding plate is bridged from the basket sill to the support part of the landing sill, so that sufficient safety and running performance can be secured, and when the shielding plate is not used, the shielding plate is protected. It can be stored while.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  As shown in FIGS. 2, 3, and 4, the elevator door 3 of the present example includes a pair of car doors 3A and 3B provided at the entrance on the side of the ride car 1 and a pair of landings provided at the entrance on the side of the landing 2 It consists of doors 3C and 3D.

  In this example, the front car door 3A and the landing door 3C are connected to each other when the car 1 stops landing on the designated floor, and then the car 1 slightly rises or falls from the designated floor. At that stage, the connected state is released. In this example, only the front car door 3A is opened / closed by an elevator operation control command. When the car door 3A opens / closes, the door interlock mechanism (not shown) acts to open the car door 3B and the landing door 3C. And the door 3D opens and closes in conjunction with each other by the action of another door interlocking mechanism (not shown). That is, only the one car door 3A is opened and closed, and the other car door 3B and the landing doors 3C and 3D are opened and closed in conjunction with each other. In FIG. 2, 4 is a landing threshold, 5 is a basket threshold, 6 is a clearance gap, 12 is a basket floor, 13 is a landing floor, 14 in FIG. 4 is a lower rail provided on the landing threshold 4, and 15 is a basket. It is a lower rail provided on the threshold 5.

  Here, as shown in FIG. 1, the sill gap shielding device 16 of the present invention includes a shielding plate 7 that closes the sill gap (sill gap) 6 in a freely openable and closable manner, and a support portion 10 that supports the tip 7 b of the shielding plate 7. When the rear cage door 3B is closed, the shielding plate 7 is rotated upward C. On the other hand, when the rear cage door 3B is opened, the shielding plate 7 is rotated downward B to close the sill gap 6. The main body is composed of the rotating means 11.

  The shielding plate 7 is made of a rigid material such as a metal, for example, and has a long rectangular shape along the entrance / exit width direction W as shown in FIGS. Here, as shown in FIG. 1, the front end portion 5a of the cage sill 5 protrudes forward G from the front surface of the front-side cage door 3A, and the base end portion 7a of the shielding plate 7 protrudes from the protruding front end portion 5a. Is provided with a pivot shaft 8 that is pivotably mounted vertically. By projecting the front end portion 5a of the basket sill 5 forward G from the front surface of the front-side basket door 3A, the shielding plate 7 can be rotated up and down in a range that does not interfere with the cage door 3A. 1 is the rotation range of the sliding member 17.

  Furthermore, the front end 7 b facing the base end 7 a of the shielding plate 7 can be supported by the rear end 4 a of the landing threshold 4. In this example, the rear end portion 4a of the landing threshold 4 protrudes rearward H from the rear surface of the landing door 3C, and this protruding portion also serves as the support portion 10 that supports the front end portion 7b of the shielding plate 7 from below. Yes.

  Further, a sliding member 17 projects from a side end portion 7c (FIG. 8A) in the entrance / exit width direction W of the shielding plate 7 at a position facing an opening / closing lever 18 described later. When the member 17 is turned up and down by the turning means 11, the entire shielding plate 7 is turned up and down. The sliding member 17 of this example is constituted by a head with a rounded bolt as shown in FIG. In addition, 19 in FIG. 1 is a washer.

  On the other hand, the rotation means 11 includes an opening / closing lever 18 that is attached to the rear cage door 3 </ b> B so as to face the sliding member 17 of the shielding plate 7 and can be rotated up and down, and the opening / closing lever 18 and the sliding member 17. A shock-absorbing spring 19 is provided for alleviating the impact caused by the collision.

  Here, as shown in FIGS. 6 and 7, the open / close lever 18 is fixed to the rear cage door 3 </ b> B via a C-shaped bracket 21 and a fixed frame 20. Here, as shown in FIG. 6A, the rear end portion 20a of the fixed frame 20 is fixed to the side end portion 3B1 on the open side A1 of the cage door 3B, and the front end portion 20b of the fixed frame 20 is fixed to the front side cage door 3A. The upper end portion of the C-shaped bracket 21 is fixed to the front end portion 20 b with screws 22. The C-shaped bracket 21 is disposed in parallel with the front surface of the cage door 3A at a position separated from the cage door 3A. The lower end of the C-shaped bracket 21 is provided with a front / rear shaft 9 orthogonal to the rotation shaft 8 of the shielding plate 7, and the end P2 of the closing side A2 of the opening / closing lever 18 is vertically turned with respect to the front / rear shaft 9. It is pivotally attached. Note that the end P1 on the opening side A1 of the open / close lever 18 is a free end. Here, as shown in FIG. 6B, the screw hole 21a of the C-shaped bracket 21 (or the screw hole 20c of the fixed frame 20) is formed as a vertically long slot, and the height position of the C-shaped bracket 21 can be arbitrarily set. Thus, the height position of the opening / closing lever 18 with respect to the sliding member 17 of the shielding plate 7 can be arbitrarily adjusted.

  Further, the facing surface of the opening / closing lever 18 with respect to the sliding member 17 is located on the lowermost side on the end portion P2 side on the closing side A2 of the opening / closing lever 18 and is located on the upper side toward the end portion P1 on the opening side A1. The inclined surface 23 is inclined upward. As shown in FIG. 6B, the inclined surface 23 of this example is bent in a substantially square shape when viewed from the front, and the gradient of the inclined surface 23b on the open side A1 with respect to the bent portion 50 is closed. The slope is gentler than the inclined surface 23a. When the car door 3B is opened, the sliding member 17 is moved from the end P1 on the opening side A1 of the inclined surface to the end P2 on the closing side A2, so that the shielding plate 7 is rotated downward B so that the sill gap 6 On the other hand, when the basket door 3B is closed, the sliding member 17 rides from the end P2 on the closing side A2 to the end P1 on the opening side A1 of the inclined surface 23, so that the shielding plate 7 rotates upward C. It is.

  Further, a buffer spring 19 made of a coil spring is attached to the lower surface side of the opening / closing lever 18. The lower end of the buffer spring is supported by a C-shaped bracket 21. The shock absorber spring biases the opening / closing lever 18 that can be pivoted up and down obliquely upward, so that the contact between the inclined surface 23 of the opening / closing lever 18 and the sliding member 17 is ensured, and at the same time, the sliding of the inclined surface 23 with the sliding surface. It works to prevent the generation of noise by mitigating the impact at the time of collision with the moving member 17.

  FIG. 9 shows an example of the case where the shielding plate 7 is biased downward B by the action of its own weight by setting the gravity center M of the shielding plate 7 to a gravity balance shifted from the center. Yes. In FIG. 9, the total weight F1 of the shielding plate 7 is, for example, 180 g, the distance N from the rotation shaft 8 to the center of gravity M is, for example, 14.3 mm, and the distance Q from the rotation shaft 8 to the sliding member 17 is, for example, 10 mm. The deviation width S between the center position R of the shielding plate 7 (FIG. 9E) and the gravity center position M is, for example, 1.6 mm, and the deviation width T between the gravity center position M and the sliding member 17 (FIG. 9E). Is 8.4 mm, for example, the load F2 of the shielding plate 7 is about 257 g [≈ (180 g × 14.3 mm) ÷ 10 mm] at a rotation angle of 0 ° in FIG. 9A, as shown in FIG. At a rotation angle of 22.5 °, it is about 167 g, at a rotation angle of 45 ° in FIG. 10C, it is about 155 g, at a rotation angle of 67.5 ° in FIG. At a moving angle of 90 ° (upward posture), it is about 34 g. Thereby, the shielding plate 7 can be rotated downward B by its own weight.

  Next, the operation will be described.

  When the basket 1 stops landing at the landing 2 on the designated floor and the basket door 3B opens to the door pocket side, the opening / closing lever 18 attached thereto also moves to the opening side A1, and FIG. 8 (i) → (g) → As shown in (e) → (c) → (a), the sliding member 17 of the shielding plate 7 moves from the open end A1 end P1 to the close end A2 end P2 of the inclined surface 23. 8 (j) → (h) → (f) → (d) → (b), the shielding plate 7 turns downward B by its own weight to close the sill gap 6 and the tip of the shielding plate 7 7b will be in the state (state of the phantom line of FIG. 1) supported by the support part 10 of the boarding point threshold 4 from the downward direction. As an example, when the cage door 3B is opened from the fully closed position to about 50 mm, for example, the shielding plate 7 starts to fall, and when it is further opened to about 85 mm, the threshold gap 6 is completely closed.

  On the other hand, when the car door 3B is closed, the opening / closing lever 18 is also moved to the closing side A2, and the reverse operation is performed. That is, when the cage door 3B is closed to the position X1 in FIG. 8 (c), the shielding plate 7 opens about 22 °, and when it closes to X2 in FIG. 8 (e), it opens about 45 °, up to X3 in FIG. When closed, it opens about 67 °, and finally when it opens to X4 in FIG. 6 (i), the sliding member 17 moves to the end P1 on the open side A1 of the inclined surface 23, so that the shielding plate 7 is about 90 °. open. At this time, the shielding plate 7 is prevented from falling backward H by the fall-preventing ribs 60 (FIG. 5) erected from the upper surface of the basket sill 5, so that the shielding plate 7 is securely stored on the cage sill 5 side. In this state, the ride basket 1 can be raised and lowered. Here, when the horizontal load acting on the inclined surface 23 from the sliding member 17 when the cage door 3B is closed is F3 and the vertical load is F4, the rotation angle of the shielding plate 7 in FIG. The horizontal load F3 is maximum (about 130 g). At this time, a load (about 52 g) is applied to the buffer spring 19, and the shock caused by the collision between the sliding member 17 and the opening / closing lever 18 can be reduced as much as possible by contraction of the buffer spring 19. It becomes like this. Further, since the vertical load F4 is minimum (about 35 g) at the rotation angle 90 ° of the shielding plate 7 in FIG. 8I, the load applied to the buffer spring 19 is small (about 56 g), and the load load of the buffer spring 19 is reduced. Can be reduced.

  Thus, since the front end portion 7b of the shielding plate 7 is bridged over the support portion 10 of the landing sill 4 with the shielding plate 7 closing the sill gap 6, the shielding plate 7 is supported at both ends. Since the strength of the shielding plate 7 can be increased compared to the case where the cantilever is supported, it is not deformed or depressed by the weight of a person, a wheelchair, a carriage or the like. In addition, since the opening / closing lever 18 is driven using the opening / closing operation of the cage door 3B, there is no possibility that the shielding plate 7 will appear by mistake when the riding cage 1 is raised or lowered. Moreover, since the shielding plate 7 is rotated from above C to close the sill gap 6, even if a level error occurs between the landing sill 4 and the basket sill 5 when the landing is stopped due to an assembly error or a manufacturing error, the shielding plate 7 is shielded. The sill gap 6 can be reliably closed by the plate 7, and even if the shielding plate 7 is slightly inclined at this time, the shielding plate 7 is bridged from the basket sill 5 to the support part 10 of the landing sill 4, As a result, safety and running performance can be sufficiently secured without hindering passage of wheelchairs, wheelchairs, carts, and the like. In addition, when the shielding plate 7 is not used, the shielding plate 7 can be securely stored in a small space above the cage sill 5, and there is no possibility that the shielding plate 7 is damaged during the ascent and descent.

  Further, since the shielding plate 7 is urged downward B by its own weight, there is no need to provide a separate mechanism for rotating the shielding plate 7 downward B, thereby simplifying the structure of the rotating means 11 and reducing the cost. Can be reduced. Furthermore, since the shielding plate 7 is rotated by utilizing the opening / closing operation of the cage door 3B, no electric parts such as a dedicated motor for rotating the shielding plate 7 are required, and the structure of the rotating means 11 is further increased. It can be simplified. In addition, the shielding plate 7 and the rotating means 11 are each attached to the side of the car 1 and only the support 10 is provided on the side of the landing sill 4, and the rear end 4 a of the landing sill 4 also serves as the support 10. Since it has a structure, there is no need to separately provide a dedicated support member on the landing threshold 4 side, and there is an advantage that the structure on the landing threshold 4 side can be simplified.

  Further, since the sliding member 17 of the shielding plate 7 has a rounded shape, it can smoothly travel along the inclined surface 23 of the opening / closing lever 18, and therefore friction is generated between the sliding member 17 and the opening / closing lever 18. In addition, since the opening / closing lever 18 is less likely to wear out, there is an advantage that it can withstand long-time use and the maintenance interval is greatly extended.

  When the car doors 3A and 3B are opened, the sliding member 17 collides with the inclined surface 23 of the opening / closing lever 18 as shown in FIG. 8A. At this time, the buffer spring 19 provided on the opening / closing lever 18 side. Since the impact can be mitigated and the collision sound can be eliminated, it is possible to prevent annoying noise from being generated each time the elevator door 3 is closed. The buffer spring 19 is not limited to a coil spring, and for example, a rubber elastic cylindrical body or a hydraulic shock absorber can be used. Further, the buffer spring 19 can be provided on the sliding member 17 side without being provided on the opening / closing lever 18 side.

  Further, in this example, as shown in FIG. 1, a stopper 25 is projected from the lower surface of the shielding plate 7 on the base end portion 7a side so as to prevent the shielding plate 7 from rotating further downward from the horizontal posture. ing. By the way, when landing on the designated floor, the shielding plate 7 is held in a horizontal posture by the support portion 10, but for example at the time of inspection of the elevator, a position shifted upward or downward from the landing position of the landing 2 ( For example, the cage doors 3A and 3B may be opened in the middle of the floor). In this case, the shielding plate 7 is not supported by the support portion 10 and faces directly under its own weight, and the sliding member 17 of the shielding plate 7 gets on the upper surface of the opening / closing lever 18 even if the cage doors 3A and 3B are closed thereafter. For this reason, it is necessary to close the cage doors 3A and 3B while the operator raises the shielding plate 7 by hand. However, by providing the stopper 25 as in this example, the shielding plate 7 is directly below. The above-mentioned trouble can be saved.

  In the above-described embodiment, the case where the shielding plate 7 is urged downward B by its own weight is exemplified. However, the present invention is not limited to this, and the shielding plate 7 is urged downward B by utilizing the balance action by the weight, or the shielding plate. 7 may be one in which a twist spring is attached to the base end portion 7a of the 7 and the shielding plate 7 is urged downward B by the spring force.

  In the above-described embodiment, the case where the shielding plate 7 is attached to the basket sill 5 side and the support portion 10 is provided on the landing 2 side has been described. On the contrary, the shielding plate 7 and the rotating means 11 are disposed on the landing. It is also possible to attach to the door 3D side and to provide the support part 10 on the basket sill 5 side.

  The elevator door 3 to which the sill gap shielding device 16 of the present invention is applied is not limited to two doors, and may be a single door or three or more doors. Further, the present invention can be widely applied not only to newly installed elevators but also to existing elevators.

It is a side view showing one embodiment of the threshold gap shielding device of the present invention. It is a top view explaining the arrangement | positioning state of a sill gap shielding apparatus same as the above. FIG. 3 is a front view of FIG. 2. FIG. 4 is a cross-sectional view seen from the line U-U in FIG. 3. It is sectional drawing seen from the VV line | wire of FIG. (A) is a top view explaining a C-shaped bracket and a fixed frame that support the same open / close lever, and (b) is a front view. It is a side view of Fig.6 (a). The operation of the opening / closing lever and the shielding plate is shown. (A) and (b) are explanatory diagrams of the state when the rotation angle of the shielding plate is 0 °, and (c) and (d) are the rotation angles of the shielding plate. (E) (f) is a state explanatory diagram when the rotation angle of the shielding plate is 45 °, (g) (h) is a state explanatory diagram when the rotation angle of the shielding plate is 67. (I) and (j) are state explanatory views when the rotation angle of the shielding plate is 90 °. (A)-(e) is explanatory drawing explaining the case where the same shielding plate rotates below with dead weight.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Boarding board 2 Boarding area 3 Elevator door 4 Boarding sill 5 Basket sill 6 Sill gap 7 Shielding plate 7a Base part 7b Tip part 7c Side end part 8 Rotating shaft 9 Front-rear axis 10 Supporting part 11 Rotating means 17 Sliding member 18 Opening / closing lever 19 Buffer spring 23 Inclined surface B Lower C Upper P1 Open end P2 Close end

Claims (3)

  This is an elevator sill gap shielding device that blocks the sill gap between the platform sill at the bottom of the platform entrance and the cage sill with a shielding plate only when the platform stops landing at the platform and the elevator door opens. The base end portion of the shielding plate is attached to the cage sill side so as to be pivotable in the vertical direction, and the elevator is provided with a support portion for supporting a tip portion opposite to the base end portion of the shielding plate on the landing sill side. When the door is closed, the shielding plate is rotated upward to be stored in the basket sill side. On the other hand, when the elevator door is opened, the shielding plate is rotated downward to close the sill gap and support the tip of the shielding plate. An elevator sill gap shielding device, characterized in that it is provided with a rotating means for supporting the unit from below.   The elevator sill gap shielding apparatus according to claim 1, wherein the shielding plate is biased downward by the action of its own weight.   A sliding member is provided at a side end in the entrance / exit width direction of the shielding plate, and the rotating means is vertically moved around the front / rear axis orthogonal to the rotating axis of the shielding plate on the elevator door side facing the sliding member. The opening / closing lever of the opening / closing lever is pivotally attached to the sliding member, and the surface facing the sliding member of the opening / closing lever extends in parallel with the traveling direction of the elevator door and extends from the closing end of the elevator door to the opening end. The inclined surface is inclined so as to be located upward as it goes, and when the elevator door is closed, the sliding member rides from the closed end of the inclined surface to the open end so that the shielding plate rotates upward. On the other hand, when the elevator door is opened, the sliding member moves from the open end of the inclined surface to the close end so that the shielding plate rotates downward to close the sill gap. And close the elevator door The buffer spring is attached elevator sill gap covering device according to claim 1 or claim 2, wherein for reducing the impact due to collision between the inclined surface and the sliding member.

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