JP4507852B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device used for an elevator apparatus.

  Patent Document 1 describes an example of an elevator door device that reduces a gap generated between a car sill and a landing sill when the car lands. In the elevator door device described in this publication, a car door that opens and closes the doorway of the car is provided. In addition, an operating body is provided in the car, and the driving mechanism drives the operating body. When the car door is closed, the actuating body rises, and the actuating body is in close contact with both the closed car door and the car sill, closing the gap between the car door and the sill. On the other hand, when the car door is opened, the operating body descends and is located in a gap formed between the car sill and the landing sill to minimize the gap.

JP 2000-351561 A

  In the elevator door device described in Patent Document 1, the working body is pushed substantially forward using a parallel link in order to fill a gap formed between the car sill and the landing sill. A drive device having a drive source and a gear reducer is connected to the parallel link. However, since this elevator door device supports the operating body, which is a gap closing member, only by the parallel link, the drive device must bear all the loads acting on the closing member. When the driving device bears the full load in this way, the driving device becomes large and expensive.

  Further, in order to prevent the blocking member from being deformed by a load applied to the blocking member, the thickness of the blocking member must be increased. Elevator operation requires safety in the event of a power failure. However, when the door is manually opened and escapes from the car, the closing member is retracted above the car sill, so that the blocking member obstructs the movement. If the retracting position of the closing member is located above the car sill with a gap, the user may step on and be damaged during evacuation.

  The present invention has been made in view of the problems in the prior art described above, and an object of the present invention is to reduce a gap formed between a landing-side door and a car-side door of the elevator when the door of the elevator is opened and closed. Another object of the present invention is to reduce the gap with a simple configuration. Still another object of the present invention is to smoothly open and close the elevator door even during a power failure. The present invention aims to achieve at least one of these objects.

A feature of the present invention that achieves the above-described object is that, in an elevator door device having an elevator device in which a car ascends and descends a hoistway, a car and a landing side are arranged at a lower part of the car according to opening and closing of the door provided in the car. There is provided a closing means for closing a gap formed between the plate-like closing members extending beyond the width direction of the door, and a pair having a parallel link driven at the end in the width direction. And the drive mechanism for driving the link mechanism, and the pair of link mechanisms move the closing member once upward and then fill the gap between the car and the landing side. The closing member is driven to form a parallel link mechanism, and the time when the parallelogram formed by the parallel link mechanism changes to a straight line is different on the left and right .

Still another feature of the present invention that achieves the above object is to provide an elevator door device having an elevator device in which a car moves up and down the hoistway to close a gap generated between the landing sill and the car sill when the car door is opened and closed. A closing member; a link mechanism provided at both ends of the closing member; and a support member that supports the closing member in a gap closing state. The link mechanism temporarily moves the closing member upward and then stops on the landing sill side. The link mechanism is provided in a pair of left and right links, each of the left and right link mechanisms has two parallel links, and the mounting positions of the parallel links in the left and right link mechanisms have a phase difference. It is what you have.

  Still another feature of the present invention that achieves the above object is that, in an elevator door device of an elevator device in which a car moves up and down a hoistway, a car sill provided at the lower part of the car and disposed opposite to the car sill A closing member that closes a gap formed between the landing sill of the stationary body, a link mechanism provided at both ends of the closing member in the door opening / closing direction, a drive source that connects and drives the link mechanism, and a closing member And a guide member for holding and guiding the moving posture of the closing member, and the link mechanism moves the closing member once upward and then downwards. The gap between the sill and the landing sill is closed, and the support member supports the closing member when the closing member reaches the gap closing position.

  According to the present invention, the gap formed between the landing side sill and the car side sill is closed by a gap closing member driven by a link mechanism so that it retracts in front of the car door when the door is closed and descends from above when the door is opened and closed. In addition, since the support member supports the bottom surface of the gap closing member, the gap formed between the elevator door and the car door can be reduced as much as possible. In addition, since the support member can support most of the load applied to the gap closing member, the driving force of the gap closing member can be reduced, and the elevator door device is simplified. Further, even during a power failure, the gap closing member does not protrude from the floor of the car or the floor on the landing side, so that the car can be easily retracted.

  Hereinafter, an embodiment of an elevator door device according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the elevator door device 100. In the elevator apparatus, a car door 1 is provided on the car side, and a landing door (not shown) is provided on the landing side. A car sill 2 having a groove for guiding the opening and closing of the car door is disposed below the car door 1. A landing threshold 4 is arranged in parallel to the car threshold 2 at a predetermined distance. A groove for guiding the landing door is formed in the landing threshold 4. Under the car sill 2, a sill bracket 21 that holds the car sill 2 extends over the entire length of the car sill 2 as shown in FIG. 2.

  A left link mechanism 6 and a right link mechanism 7, which will be described in detail later, are attached to the lower surface of the sill bracket 21 at positions outside the left and right ends of the car door 1 with the car door 1 closed. An attachment plate 9 for attaching the drive source 8 is attached to the front side surface or the lower surface of the sill bracket 21 at the intermediate portion between the left and right link mechanisms 6 and 7. The drive source 8 is, for example, a stepping motor having both shafts. Furthermore, support members 11 </ b> A to 11 </ b> G formed in an L shape are attached to the front side surface of the car sill 2 at a plurality of locations in the middle of the left and right link mechanisms 6 and 7.

  A plate-like blocking member 5 connected to the left and right link mechanisms 6 and 7 is provided between the left and right link mechanisms 6 and 7. When the car door 1 is closed, the closing member is placed on the car sill 2 using the left and right link mechanisms 6 and 7. The closing member 5 is, for example, a thin metal plate. An elastic material 12 (see FIG. 2) is attached to the back surface of the closing member 5 to alleviate a collision sound when sitting on the support members 11A to 11G or the car sill 2 at the time of closing. Since the closing member 5 forms a floor when the car door 1 is opened, another surface is provided on the surface of the closing member 5 in order to facilitate harmony with the interior and exterior of the cage and the floor and to facilitate maintenance and replacement. Surface materials such as sheet, film, etc. can be attached.

  In order to transmit the power of the motor 8 to the left and right link mechanisms 6 and 7, connecting shafts 10 </ b> A and 10 </ b> B are connected to the left and right sides of the motor 1 shaft. One end side of the connecting shafts 10A and 10B is connected to the motor 8, and the other end side is connected to the left and right link mechanisms 6 and 7 via link support plates 19A and 19B. The link support plates 19A and 19B are attached to the lower surface of the sill bracket 21. Two position sensors 30 and 31 are also attached to the sill bracket 21 via attachment members (not shown). One position sensor 30 is a position sensor that detects the closed position of the closing member 5, and the other position sensor 31 is a sensor that detects the retracted position of the closing member. For each member attached to the sill bracket 21, the sill bracket 21 is cut at various places.

  2 and 3 are side views of the left link mechanism 6. FIG. The right link mechanism 7 has the same configuration, but is symmetrical with the left link mechanism 6. FIG. 2 shows a state when the closing member 5 is in the retracted position, and FIG. 3 shows a state where the closing member 5 is in the closed position. A protrusion 1a formed in the lower part of the car door 1 and extending in the left-right direction is fitted in a groove 2a formed on the upper surface of the car sill 2. Similarly, a protrusion 3a formed in the lower part of the landing door 3 and extending in the left-right direction is fitted in the groove 4a formed in the landing threshold 4.

  The platform side (front side) of the car sill 2 is formed widely, and a space in which the closing member 5 can be retracted is secured. A car sill bracket 21 having a C-shaped cross section is disposed on the lower surface of the car sill 2. A link support plate 19A having a shape bent into an L shape is attached to the rear surface side of the sill bracket 21. The driven link 16A is locked to a surface extending downward on the long side of the L shape. One driven link shaft 16c and a connecting shaft 10A are attached. The connecting shaft 10A is attached via a bearing. A small-diameter shaft portion is formed at the end of the connecting shaft 10A, and a cross-sectional oval portion 20A is formed on the small-diameter shaft portion.

  The closing member attaching plate 13A is disposed at a slight distance from the link support plate 19A on the outer side in the left-right direction. A first driven link shaft 16b to which one end side of the driven link 16A is attached is attached to the lower part of the closing member mounting plate 13A. An elongated hole formed on one end side of the drive link 18A is fitted into the oval portion 20A of the connecting shaft 10A. A drive link shaft 18b to which the other end side of the drive link 18A is attached is attached to the closing member attachment plate 13A below the second driven link shaft 16c. The driven link 16A and the drive link 18A form a parallel link. In addition, the edge part of the closure member 5 is attached to the upper part of the closure member attachment plate 13A.

  The operation of the closing member 5 configured as described above will be described below. While the car is moving up and down, the closing member 5 is seated on the upper surface of the car sill 2 as shown in FIG. At this time, the position of the closing member 5 is set so that the front end face 5f of the closing member 5 is located closer to the car door 1 than the front end face 2f of the car sill 2. Thereby, it is avoided that the closing member 5 collides with a door engaging member (not shown) attached to the landing door 1.

  When a landing sensor (not shown) detects that the car has landed on the destination floor, the motor 8 rotates the connecting shaft 10A. The drive link 18A attached to the shaft end of the connecting shaft 10A, the closing member attachment plate 13A, and the driven link 16A rotate synchronously. Since the closing member mounting plate 13A rotates, the closing member 5 also moves as 5A → 5B → 5C → 5D in FIG. That is, since the link length L1 of the driven link 16A and the drive link 18A is shortened and the rotation angle α of the driven link 16A and the drive link 18A is set large, the closing member 5 is temporarily moved upward from the upper surface position 5A of the car sill 2. Move to the raised position 5B.

  After that, the rear end face 5g of the closing member 5 moves to the position 5C approaching the front side of the end face 2f of the car sill 2 while keeping a clearance between the upper surface of the car sill 2 and the lower surface of the closing member 5, Avoid collision even if the member is bent. Continue to move downward and sit at position 5D on support members 11A-11G. At this time, the upper surfaces of the landing sill 4, the car sill 2, and the closing member 5 are substantially in the same plane. And the gap formed between the landing threshold 4 and the car threshold 2 is almost closed.

When the position of the closing member 5 reaches substantially the same height as the landing threshold 4 and the car threshold 2, the closing position sensor 30 is activated, and the control device (not shown) stops the motor 8. When the closing member 5 is seated on the support members 11A to 11G, a collision sound is generated between the closing member 5 and the support members 11A to 11G. In order to mitigate this collision sound, a rubber sheet 12 is provided on the back surface of the closing member 5.
Since the space between the landing sill 4 and the car sill 2 is filled with the closing member 5, the elevator car door 1 and the landing door 3 are opened. When the user gets on and off, the car door 1 and the landing door 3 are closed. When a door sensor (not shown) detects that the car door 1 and the landing door 3 are closed, the motor 8 drives the connecting shaft 10A to rotate again. The drive link 18A and the driven link 16A rotate in the reverse direction, and the closing member 5 follows a trajectory opposite to that during the closing operation, and retracts and sits on the upper surface of the car sill 2. The position sensor 31 detects that the closing member has reached the retracted position, and the control device stops the motor 8. Thereby, operation | movement of a door apparatus is complete | finished.

  In this embodiment, since the thickness of the closing member 5 is reduced, the load on the drive source is reduced and the elevator door device can be downsized. Further, when the elevator door device cannot be automatically used due to a power failure or the like and is evacuated, the car door 1 and the landing door 3 are manually opened, but the closing member 5 remains in the retracted position of the car sill 2 at that time. ing. Therefore, the floor surface has a level difference corresponding to the thickness of the closing member 5. The user must evacuate across the blocking member 5, but the blocking member 5 can sufficiently withstand the use of a thin stainless steel plate having a thickness of 3 mm, so that the influence of the step portion can be ignored.

  Even when the user evacuates by stepping on the closing member 5, the closing member 5 is seated in contact with the upper surface of the car sill 2, so that the load on the closing member 5 is borne by the car sill 2, and the closing member 5 There is no fear of breaking. Since the closing member is not a load support member, the user can walk more smoothly even during a power failure or the like if the front and rear ends are rounded or inclined. Further, even if power is not supplied to the drive source 8 and the closing member 5 cannot be electrically held, the closing member 5 is seated on the car sill 2 by its own weight, so that the closing member 5 is difficult to move and the user's It does not interfere with evacuation.

  FIG. 13 shows the deformation state of the closing member 5 in the left-right width direction. When the thin blocking member 5 is used, deflection occurs due to its own weight, warpage during processing, and the like, and the deflection amount at the center is X. In the present embodiment, as shown in FIG. 3, the closing member 5 is once lifted upward (the state of 5B and 5C in FIG. 3) and then moved forward or backward, so that the conventional closing that pushes forward is performed. It is possible to avoid the side surface of the closing member 5 that may occur in the case of the member from colliding with the front side surface 2f of the car sill 2. That is, since the movement locus of the closing member 5 is substantially semicircular, even if the closing member 5 is warped or bent, the closing member 5 can be reliably moved to the closing position or the retracted position.

  In FIG. 4, the front view of the elevator door apparatus 100 is shown. The width of the closing member 5 in the left-right direction is wider than the entrance / exit width W. When the closing member 5 is attached to the closing member attaching plates 13A and 13B, it is attached at a position on the outer side in the left-right direction with respect to the entrance / exit width W. Thereby, it can avoid becoming an obstacle of passenger getting on and off. The closing member mounting plates 13A and 13B have, for example, a shape bent twice. The drive links 18A and 18B and the driven links 16A and 16B are positioned on the inner side in the left-right direction than the entrance / exit width W. Similarly, the link support plates 19A and 19B and the position sensors 30 and 31 are arranged within the entrance / exit width W. The position sensors 30 and 31 are attached to different positions on the left and right so that they can be seen from the landing side during maintenance inspection. Thus, since the position in the left-right width direction and the vertical position of each member are set, the maintenance inspector can perform maintenance inspection from the landing side without entering under the car.

  Maintenance and inspection from the landing side of the elevator door device 100 shown in the above embodiment will be described with reference to a perspective view of two parts of the car sill shown in FIG. Below the car sill 2 is to prevent the passengers and workers from accidentally falling into the hoistway under the car when the passenger evacuates from the car to the landing when the elevator stops abnormally or when maintenance inspection is performed. Further, two large and small protective covers 25 and 26 are attached.

  The small protective cover 25 is a bar in which protrusions 25b are formed at two places on the upper side of the plate extending in the left and right direction. The large protective cover 26 is a plate-like cover in which a recess for accommodating the small protective cover 25 is formed in the upper part. A small protective cover 25 covers the closing mechanism. At the time of maintenance / inspection of the closing mechanism part, the maintenance / inspection of the closing mechanism part can be easily performed only by removing the small protective cover 25. At the same time, the fall to the hoistway can be prevented.

  FIG. 6 shows an example in which the connecting shaft is composed of a plurality of connecting shafts to improve the maintenance workability of the closing mechanism. FIG. 6 is a front view of the motor 8 as a driving source and the connecting shafts 10C to 10F. The connecting shaft 10A is composed of a plurality of connecting shafts 10C, 10D, and the connecting shaft 10B is similarly composed of a plurality of connecting shafts 10E, 10F. The connecting shaft 10D is fitted into the connecting shaft 10C, and the fitting portion is connected by the pin P3. Similarly, the connecting shaft 10E is fitted into the connecting shaft 10F, and the fitting portions are connected by pins P4. The connecting shafts 10 </ b> D and 10 </ b> E are fitted to the shaft portions of the both shaft motors 8 and connected by pins P <b> 1 and P <b> 2. When exchanging the motor 8, the connecting shafts 10D and 10E are moved in the directions of arrows a and b, respectively, and only the motor 8 is removed.

  By the way, in this embodiment, the closing member 5 is moved between the car sill 2 and the landing sill 4 using parallel links, and then returned again to the retracted position. A singular point that is a point where the parallelogram formed becomes a straight line passes. Since the movement of the link mechanism is not smooth at the singular points of the link mechanisms 6 and 7, in this embodiment, the relative positional relationship between the drive links 18A and 18B and the driven links 16A and 16B is determined by the left and right link mechanisms 6 and 7. It is changing. FIG. 7 is a perspective view of the left link mechanism 6, and FIG. 8 is a perspective view of the right link mechanism 7.

  As described above, the left link mechanism 6 is a parallel link having a driven link 16A and a drive link 18A. One end of each link 16A, 18A is on the link support plate 19A, and the other end is on the closing member mounting plate 13A. The shafts 16b, 16c, 18b, and 20A are used for fastening. The right link mechanism 7 is similar to the left link mechanism 6 and is a parallel link having a driven link 16B and a drive link 18B. One end of each link 16B, 18B is a link support plate 19B, and the other end is a closing member mounting plate. Fastened to 13B using shafts 16d, 16e, 18d, and 20B.

  A specific method for avoiding a defect at a singular point will be described with reference to FIG. FIG. 9 is a view showing the left link mechanism 6 and the right link mechanism 7 overlapped, as viewed from the left link mechanism 6 side. FIG. 4A is a diagram showing a state when the closing member 5 is held at the retracted position, and FIG. 4B is a diagram showing that the left link mechanism 6 is unique when the closing member 5 reaches the uppermost position. It is a figure which shows the state which became the position of the point. FIG. 4C is a view showing a state in which the right link mechanism 7 is in a singular point position while the closing member 5 is lowered, and FIG. 4D is a view in which the closing member 5 is held in the closed position. It is a figure which shows the state at the time.

  In the state where the closing member 5 in FIG. 9A is held at the retracted position, the driven link 16A and the drive link 18A forming the left link mechanism 6 are in a state parallel to the top and bottom. On the other hand, the driven link 16B of the right link mechanism 7 is located obliquely to the right of the drive link 18B. Here, since the left and right drive links 18A, 18B operate together, the mutual positional relationship is always the same. The parallelogram 33 formed by the left link mechanism 6 and the parallelogram 34 formed by the right link mechanism 7 are different in shape.

  If the motor 8 is started in this state, the connecting shafts 10A and 10B start to rotate, and the left and right link mechanisms 6 and 7 start smoothly. As described above, since the positions of the left and right driven links 16A and 16B with respect to the drive links 18A and 18B are changed, both the left and right link mechanisms 6 and 7 always form 33, 34 parallel sides at the start of closing. 5 can be rotated in a horizontal posture.

  In a state where the left link mechanism 6 in FIG. 9B is a singular point, the driven link 16A and the drive link 18A are aligned on the straight line 35, and the parallelogram is no longer formed. In a state where the driven link 16A and the drive link 18A are aligned, the driven link 16A can rotate in the direction opposite to the drive link 18A. When the driven link 16A rotates in the reverse direction, the closing member 5 falls to the car sill 4 side. On the other hand, in the right drive link 7, since the driven link 16B and the drive link 18B continue to form the parallelogram 34, the closing member 5 is continuously driven in the forward direction that is the same as the rotation direction of the drive link 18B. As a result, the left link mechanism also rotates in the forward direction, which is the same direction as the rotation of the drive link 18A, and the driven link 16A of the left link mechanism 6 is prevented from rotating in the reverse direction.

  FIG. 9C shows a state in which the right link mechanism 7 has reached a singular point. The driven link 16B and the drive link 18B of the right link mechanism 7 are aligned on the straight line 36, and a parallelogram is no longer formed. Also in this case, the right link mechanism 7 can rotate in the forward direction and the reverse direction. However, since the left link mechanism continues to rotate in the forward direction, the right link mechanism 7 is restricted by the left link mechanism 6 and moves forward. Rotate to. According to the present embodiment, the drive links 18A and 18B and the driven links 16A and 16B of the left and right link mechanisms 6 and 7 are arranged at the same time on a straight line, that is, at a position with a phase difference. Can be avoided, and the closing member can be moved stably.

  Another embodiment for avoiding problems at the singular points of the link mechanism will be described with reference to the side view of the left link mechanism 6 shown in FIG. A first pulley 22 is attached to the cross-sectional ellipse 20A of the connecting shaft 10A, a second pulley 23 is attached to the second driven link shaft, and the belt 24 is wound around the first and second pulleys 22 and 23. Since the movements of the drive link 18A and the driven link 16A are forcibly synchronized, the unstable movement at the singular point of the parallel link is removed, and the closing member 5 can be moved smoothly. In this case, it is not always necessary for the left and right link mechanisms 6 and 7 to have different phases of the driven links 16A and 16B.

  Still another embodiment for avoiding the problem at the singular point of the link mechanism will be described with reference to the side view of the left link mechanism 6 shown in FIG. In this embodiment, one link mechanism, in FIG. 11, the left link mechanism 6, has the functions of the left and right link mechanisms 6, 7 of the embodiment shown in FIG. That is, one link mechanism 6 has one drive link 18A and two driven links 16A and 16F. The newly added driven link 16F is attached to the shafts 16j and 16k. Since the two parallelograms 33 and 38 are formed by only one link mechanism 6, problems due to singular points are eliminated.

  Since this embodiment has a configuration of three links, if each link 16A, 16F, 18A has an attachment error or a processing error, the error acts as a binding force and appears to be twisted. In order to solve this problem, an elastic member having a second degree of freedom is provided at the support fastening portion of any one of the links. In this embodiment, after the rubber ring 28 is inserted into the first driven shaft 16b of the first driven link 16A, the driven link 16A is fastened. This method is effective when the closing member 5 is long and has low rigidity. In the present embodiment, the left link mechanism 6 has a three-link configuration, but the right link mechanism 7 may have a three-link mechanism, and both the left and right link mechanisms 6, 7 may have a three-link configuration. However, in any case, an error absorbing means having a degree of freedom is required.

  FIG. 12 is a side view showing still another embodiment of the link mechanism according to the present invention. FIG. 12 is a diagram of the left link mechanism 6, which differs from the link mechanism 6 of the embodiment shown in FIG. 9 in that a guide means 40 for the closing member 5 is provided. The guide means 40 of the blocking member 5 includes a guide plate 41 provided on the outer side in the left-right direction of the blocking member mounting plate 13A so as to face the blocking member mounting plate 13A, and a folding member 5 having a shape in which both left and right ends are bent. And a fixed shaft 42 mounted on the surface. The guide plate 41 is attached to the upper surface of the car sill 2, the fixed shaft 42 is fitted therein, and a groove 41 a corresponding to the movement locus of the fixed shaft 42 is formed. Although only the left link mechanism 6 is shown in FIG. 9, the right link mechanism 7 has the same configuration.

  Even if one of the parallel links formed by the left and right link mechanisms 6 and 7 reaches a singular point and the closing member 5 tries to rotate in the opposite direction (reverse direction) to the rotation direction of the drive links 18A and 18B, the fixed shaft 42 is guided. Since it is fitted in the guide groove 41a of the plate 41, the posture and position of the closing member 5 are maintained. Since the fixed shaft 42 is in contact with the guide groove 41a, a material that is not easily worn and has good sliding properties is preferable.

  According to each embodiment described above, the clearance between the car sill and the landing sill can be reliably reduced when getting on and off, so that passengers can get on and off without a sense of incongruity. Each embodiment is particularly suitable when a wheelchair user uses the elevator apparatus, and can prevent the wheelchair from being removed. Further, since the movement locus of the closing member is a semicircular arc, even if the closing member warps or bends, it does not collide with the car sill and reliably moves to the closing position. Accordingly, the thickness of the closing member can be reduced, the load on the driving device that drives the closing member can be reduced, and the size can be reduced.

  In the retracted position, since the closing member is seated on the upper surface of the car sill, even if the user steps on the car sill, the car sill bears a load and there is no fear of destruction. Change the arrangement of the left and right links of the link mechanism used for the drive mechanism that drives the closing member, or forcibly drive the left and right link mechanisms, or adopt a three-link mechanism, so the reverse direction at the singular point of the link operation You can avoid the problem of rotating to. Since the protective plate under the car sill is composed of a plurality of protective plates and the maintenance parts are arranged at a position where they can be seen from the landing, there are advantages such as easy maintenance work.

The perspective view of one Example of the elevator door apparatus which concerns on this invention. The detailed side view of the left link mechanism used for the elevator door apparatus shown in FIG. The detailed side view of the left link mechanism used for the elevator door apparatus shown in FIG. The front view of the elevator door apparatus shown in FIG. The perspective view of the elevator door apparatus shown in FIG. The front view of the connecting shaft used for the elevator door apparatus shown in FIG. The perspective view of the left link mechanism used for the elevator door apparatus shown in FIG. The perspective view of the right link mechanism used for the elevator door apparatus shown in FIG. The figure explaining operation | movement of the link mechanism used for the elevator door apparatus shown in FIG. The side view of the other Example of the link mechanism used for the elevator door apparatus shown in FIG. The side view of the further another Example of the link mechanism used for the elevator door apparatus shown in FIG. The side view of the further another Example of the link mechanism used for the elevator door apparatus shown in FIG. The figure explaining the deformation | transformation of the closure member used for the elevator door apparatus shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Car door, 2 ... Car sill, 4 ... Boarding sill, 5 ... Closure member, 6 ... Left link mechanism, 7 ... Right link mechanism, 8 ... Drive source, 11A-11G ... Support plate, 12 ... Rubber sheet, 16A , 16B, 16F ... driven link, 18A, 18B ... drive link, 22, 23 ... pulley, 24 ... belt, 25, 26 ... protective cover for closing mechanism, 30, 31 ... position sensor, 33, 34, 38 ... parallel sides 40, guide means, 41, guide plate, 42, fixed shaft, 100, elevator door device.

Claims (9)

In the elevator door device of the elevator device in which the car moves up and down the hoistway, a closing means for closing a gap formed between the car and the landing side at the lower part of the car according to opening and closing of the door provided in the car The closing means includes a plate-like closing member extending beyond the width direction of the door, a pair of link mechanisms having a parallel link by driving the closing member at the end in the width direction, and a drive for driving the link mechanism. and means, the pair of link mechanisms after moving once upward the closure member, to drive the closure member to fill the gap between the car and the landing side, the parallel link mechanism, respectively An elevator door device characterized in that the time when the parallelogram formed by the parallel link mechanism changes in a straight line is different on the left and right . In the elevator door device of the elevator device in which the car moves up and down the hoistway, a closing means for closing a gap formed between the car and the landing side at the lower part of the car according to opening and closing of the door provided in the car The closing means includes a plate-like closing member extending beyond the width direction of the door, a pair of link mechanisms having a parallel link by driving the closing member at the end in the width direction, and a drive for driving the link mechanism. And the pair of link mechanisms drive the closure member so as to fill a gap between the car and the landing side after the closure member is once moved upward, and the pair of links A plurality of parallel link mechanisms are formed in at least one of the mechanisms, and an elastic member is interposed between at least one shaft of the shafts forming the plurality of parallel link mechanisms and the link member. Suck Elevator door device which is characterized in that. In the elevator door device of the elevator device in which the car ascends and descends the hoistway, the closing means for closing the gap formed between the car and the landing side in accordance with the opening and closing of the door provided in the car at the lower part of the car The closing means includes a plate-like closing member extending beyond the width direction of the door, a pair of link mechanisms having a parallel link by driving the closing member at the end in the width direction, and a drive for driving the link mechanism. And the pair of link mechanisms drive the closure member so as to fill a gap between the car and the landing side after the closure member is once moved upward, and the pair of links Each mechanism forms a parallel link mechanism, and a pulley is attached to one shaft of each of the driven link and drive link that form this parallel link mechanism, and a belt is interposed between these pulleys to drive Ink elevator door apparatus characterized by forcibly driving the driven link. In an elevator door device of an elevator device in which the car moves up and down the hoistway, a closing member that closes a gap generated between the landing sill and the car sill when the car door is opened and closed, and a link mechanism provided at both ends of the closing member And a support member that supports the closing member in a gap closed state, and the link mechanism moves the closing member once upward and then moves downward on the landing sill side to close the gap, and the link mechanism The left and right link mechanisms have two parallel links, and the mounting positions of the parallel links in the left and right link mechanisms have a phase difference . In an elevator door device of an elevator device in which the car moves up and down the hoistway, a closing member that closes a gap generated between the landing sill and the car sill when the car door is opened and closed, and a link mechanism provided at both ends of the closing member And a support member that supports the closing member in a gap closed state, and the link mechanism moves the closing member once upward and then moves downward on the landing sill side to close the gap, and the link mechanism Has two parallel links and is provided with means for forcibly driving the two parallel links . In an elevator door device of an elevator device in which the car moves up and down the hoistway, a closing member that closes a gap generated between the landing sill and the car sill when the car door is opened and closed, and a link mechanism provided at both ends of the closing member And a support member that supports the closing member in a gap closed state, and the link mechanism moves the closing member once upward and then moves downward on the landing sill side to close the gap, and the link mechanism Has three parallel link members, and an elastic member is interposed between the link support members that support at least one link member .   In the elevator door device of the elevator device in which the car ascends and descends the hoistway, there is a gap formed between the car sill provided at the lower part of the car and the landing sill of the stationary body facing the car sill. A closing member to be closed, a link mechanism provided at both ends of the closing member in the door opening / closing direction, a drive source for connecting and driving the link mechanism, and a support provided at the landing side end surface of the cage that supports the closing member And a guide member for holding and guiding the movement posture of the closing member, and the link mechanism moves the closing member once upward and then downward to close the gap between the car sill and the landing sill. The elevator door device is characterized in that the support member supports the closing member when the closing member reaches the gap closing position. A first protective plate and a second protective plate larger than the first protective plate are detachably provided on the lower side of the car sill, and the first protective plate is removed when the drive source is inspected and maintained. The elevator door device according to claim 7 characterized by things. A closing detection means for detecting that the closing member has reached a closing position; and a retracting detection means for detecting that the closing position has been reached, wherein the closing detection means and the retracting detection means are located below a car sill and in an elevator door. The elevator door device according to claim 7 , wherein the elevator door device is arranged at a position inside the width and is visible from the landing side.

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