JP2010137955A - Landing device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a landing device for an elevator superior in design, while providing a large door closing force, without changing an installation space. <P>SOLUTION: This landing device includes a header case 5 arranged at the upper part of a landing port of the elevator, a hanger rail 8b extended in the width direction of the landing port to the header case 5, a roller 9b guided by this hanger rail 8b, a hanger 7 moving along the hanger rail 8b by this roller 9b, a door panel 3 suspended by this hanger 7 and opening and closing the landing port, a sheave 18 arranged in the header case 5, and a door closing device 16 having a reel, a filament body 15 extracting the end from this reel and a means for applying a winding force for winding this filament body 15 on the reel and applying a self-closing force in the door closing direction to a door panel 3 by this winding force. The filament body 15 is wound on the sheave 18, and a rope end 19 of this filament body 15 is fixed to the hanger 7. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator landing apparatus.

  A door closing device that automatically performs a door closing operation is attached to a landing door installed in the elevator landing so that the landing door does not remain open.

  As the door closing device, there are a weight type using the gravity of the weight, a spring type using the spring force, and a reel type for winding the rope with the mainspring spring.

  FIG. 14 is a front view of a conventional weight-type door device viewed from the hoistway side. Door panels 51 and 52 for opening and closing the entrance 50 are provided inside the three-way frame. A header case 53 is provided on the upper part of the three-way frame, and a hanger rail 54 and another hanger rail (not shown) are horizontally mounted on the header case 53. A hanger 56 of the door panel 52 is movably engaged with a hanger rail 54 via a hanger roller 57. The same applies to the door panel 51.

  The header case 53 is provided with a weight-type door closing device 58 that urges the door panels 51 and 52 in the door closing direction. The door closing device 58 includes a wire 60 wound around a sheave 59, a weight 61 connected to one end of the wire 60 and suspended downward, and a guide pipe 62 that guides the movement of the weight 61 in the vertical direction. The other end of the wire 60 is fixed to the hanger 56 at the wire fixing end 63. From the wire fixing end 63, the gravity of the weight 61 is applied to the door panel 52. The door panels 51 and 52 are urged in the closing direction.

  As for a spring-type door closing device, there is an elevator door closer device that applies a self-closing force to a sliding door by pulling one end of a cord-like body downward by the elastic force of a closer spring that can be expanded and contracted vertically. It is known (see Patent Document 1).

  An example of a reel type door device is shown in FIG. FIG. 15A is a front view of a conventional reel type door device viewed from the hoistway side. FIG. 15B is a right side view of the apparatus. The header case 64 is provided with a hanger rail 65. The high-speed door panel 66 is suspended from the header case 64 via a hanger rail 65, a hanger 67 and a hanger roller 68. On the surface of the hanger 67 on the hoistway side, a reel closer 70 capable of winding and feeding the rope 69 is provided. A rope terminal fixing tool 71 is attached to the header case 64, and a rope terminal 72 of the rope 69 is fixed to the rope terminal fixing tool 71. The reel closer 70 winds the rope 69 by elastically rotating the reel in one direction with a spring member. Due to the winding force of the rope 69, the door panel 66 is biased in the door closing direction, and the door panel 66 moves to a predetermined closing position.

  As for the drive system of the reel type door, the other end of the second rope having one end connected to the low speed door is passed through the fixed side tension wheel and then wound around the small diameter reel of the two-stage take-up reel. At the same time, after the other end of the first rope having one end connected to the fixed side is hung on a moving pulley supported by the low-speed door and connected to the high-speed door, the two-stage take-up reel becomes a large-diameter reel. There is known an elevator door opening and closing device wound differently from the winding direction of the first rope (see Patent Document 2).

  In a high-floor building, there is a difference in atmospheric pressure between the top floor and the bottom floor due to weather conditions, and the elevator hoistway becomes a wind passage and wind pressure may be applied to the landing doors. Due to the wind pressure applied at this time, a large force is required to close the landing door. Further, in order to add a smoke shielding function to the landing door, packings may be attached to the gap between the landing door and the three-way frame. In this case as well, a larger door closing force is required due to sliding friction between the packing and the landing door.

In the case of a weight type door closing device, it is easy to increase the door closing force by stacking weights, but in the case of a reel type door closing device, the winding force is reduced due to the problem of installation space. It cannot be easily changed to a large size. For this reason, when strong door closing force is required, there are many examples of changing to a weight type door closing device.
JP 2007-217084 A JP 2001-302155 A

  However, when a weight-type door closing device is used, it is necessary to separately attach a weight guide pipe to the door closing device. When the hoistway wall is a glass-mounted elevator for observation, the weight guide pipes are visible and often not good in design.

  In view of the above problems, an object of the present invention is to provide an elevator landing apparatus that can obtain a large door closing force without changing the installation space and is excellent in design.

  In order to solve such a problem, according to one aspect of the present invention, a header case provided at an upper part of a landing opening of an elevator, a hanger rail extending in the width direction of the landing opening on the header case, A roller guided by the hanger rail, a hanger that moves along the hanger rail by the roller, a door panel that is suspended on the hanger and opens the landing port and closes the landing port, and the header case And a reel, a linear body from which the terminal is pulled out, and a means for applying a winding force to wind the linear body on the reel. A door closing device for applying a self-closing force to the door closing direction, and the linear body of the door closing device is wound around the sheave, and the terminal of the linear body Landing device for an elevator, characterized in that fixed to said hanger is provided.

  Further, according to another aspect of the present invention, a header case provided at an upper part of a landing opening of an elevator, a hanger rail extending in a width direction of the landing opening on the header case, and the hanger rail A roller to be guided, a hanger that moves along the hanger rail by the roller, a door panel that is suspended on the hanger and that opens and closes the landing opening, and a first provided in the header case. A sheave, a second sheave provided on the hanger, a reel, a linear body from which the terminal is pulled out, and a means for applying a winding force to wind the linear body on the reel A door closing device for applying a self-closing force in the door closing direction to the door panel by the winding force, and the linear body of the door closing device is wound around the first sheave. After being further wound subjected to the second sheave, the said terminal of the striatum landing device for an elevator, characterized in that fixed to the header case it is provided.

  According to another aspect of the present invention, a header case provided at an upper portion of an elevator landing, a hanger rail extending in a width direction of the landing at the header case, and each hanger rail A plurality of rollers guided by the rollers, a plurality of hangers each moving along the hanger rail by the rollers, and a plurality of hangers that are respectively suspended on the hangers to open the landing opening and close the landing opening A sliding door-type door panel, and a tension spring connecting between one of the door panels and the other door panel. The door-closing end of one door panel and the door-opening end of the other door panel By relatively moving the door panel, landing device for an elevator which is characterized in that the door closing operation is provided.

  Further, according to another aspect of the present invention, a header case provided at an upper part of a landing opening of an elevator, a hanger rail extending in a width direction of the landing opening on the header case, and the hanger rail A roller to be guided, a hanger that moves along the hanger rail by the roller, a door panel that is suspended on the hanger and that opens and closes the landing port, and a sheave provided in the header case A reel, a linear body from which the terminal is pulled out, and a weight connected to the linear body, and a door that applies a self-closing force in the door closing direction to the door panel when the weight is lowered by gravity. A closing device, wherein the wire body of the door closing device is wound around the sheave, and the end of the wire body includes the hanger and Serial header elevator hall device, characterized in that fixed to one of the case is provided.

  According to the present invention, a door closing device with a large door closing force can be obtained with the same installation space as that of the conventional example, and an elevator landing device with excellent design that can be used for a viewing elevator can be realized. Become.

  Hereinafter, an elevator landing apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 to 13. In the drawings, the same portions are denoted by the same reference numerals, and redundant description is omitted.

(First embodiment)
The elevator landing apparatus according to the first embodiment of the present invention is an elevator landing door apparatus that is provided at the hall entrance and closes the entrance. FIG. 1 is a configuration diagram of a landing door device. Fig.1 (a) is a front view of the landing door apparatus seen from the hoistway side, and FIG.1 (b) is a right view.

  The landing door device 1 includes two sliding door-type door panels 2 and 3 that are shifted to the front and rear sides of the landing side and the hoistway side, and these door panels 2 and 3 are moved in the same direction at different speeds to get on and off the entrance / exit. 4 is a two-speed door device that opens and closes 4. The door panels 2 and 3 are a low speed door and a high speed door, respectively. The direction of arrow A is the door opening direction of the door panels 2 and 3. A three-side frame is attached to the wall of the hall hall of the building, and a header case 5 is fixed to the three-side frame. Hangers 6 and 7 are attached to the upper ends of the door panels 2 and 3, respectively. The hanger 6 is rolled over a hanger rail 8a horizontally mounted on the header case 5 via two hanger rollers 9a. The hanger 7 is rolled over a hanger rail 8b that is horizontally mounted on the header case 5 in parallel with the hanger rail 8a via two hanger rollers 9b. The door panels 2 and 3 are suspended below the header case 5 and are movable in the left-right direction in this suspended state.

  The landing door device 1 has a rope-type 2: 1 interlocking mechanism 10 that moves the door panel 3 at a speed twice that of the door panel 2. FIG. 2 is a perspective view of the interlocking mechanism 10. The interlocking mechanism 10 includes an arm 11 that is horizontally fixed to the upper end protrusion of the hanger 6 of the door panel 2 for a low-speed door by a bolt, and a pair of shafts that are rotatably attached to both ends of the upper surface of the arm 11. The interlocking sheave 12 is composed of two interlocking ropes 13 that are respectively wound around the interlocking sheave 12 so as to be rotatable. In this interlocking mechanism 10, each part of each interlocking rope 13 is connected to a fixing bracket 14 fixed to the header case 5 so as to be a fixed end, and a part of the interlocking rope 13 on the side opposite to the fixed side is fast. It connects with the upper end protrusion part of the hanger 7 of the door panel 3 for doors.

  The rope-type interlocking mechanism 10 opens and closes the two door panels 2 and 3 with a movement ratio (speed ratio) of 2: 1 to each other, so that the door panels 2 and 3 move in a symmetrical manner. . The interlocking mechanism 10 causes the door panel 3 to reciprocate at a high speed in parallel with the door panel 2 so that the door panel 3 reaches the full door open position almost simultaneously with the door panel 2 when the door is opened, and almost simultaneously with the door panel 2 when the door is closed. It comes to be moved.

  A reel closer 16 capable of winding and unwinding the rope 15 is provided on the hoistway 4 side surface of the hanger 7 of FIG. The reel closer 16 is a door closing device. The door closing device facilitates door closing. The reel closer 16 includes a reel rotatably provided in a plane parallel to the surface of the hanger 7, a rope 15 having one end wound and fixed to the reel, and the other end being drawable, and the rope 15 It comprises a spring (not shown) (means for applying a winding force) for applying a rotational force to the reel in the direction of being wound around the reel. The reel is attached to the hanger 7 so that the side surface of the reel is parallel to the surface of the hanger 7. The header case 5 is provided with a sheave attachment 17, and a sheave 18 is pivotally attached to the sheave attachment 17. The sheave 18 is a driven sheave around which the rope 15 is wound.

  The upper part of the landing door apparatus 1 is expanded and shown in FIG. FIG. 3A is a front view of the main part of the landing door apparatus 1 including the reel closer 16, and FIG. 3B is a right side view of the same figure. Of the reference numerals shown in FIGS. 3A and 3B, elements having the same reference numerals represent the same elements. The sheave fixture 17 has a bent portion at an edge in the height direction, and the bent portion is attached to the header case 5. The rotation axis of the sheave 18 and the rotation axis of the reel closer 16 are parallel. The middle part of the rope 15 is wound around the sheave 18 from the upper part to the lower part, and the rope terminal 19 of the rope 15 is fixed to the hoistway side surface of the hanger 6.

  Further, the landing door device 1 includes a locking device 20 that performs locking and unlocking. The latch 20a of the locking device 20 is pivotally supported in a state of being urged to rotate in the locking direction by a spring or the like. A hook portion 20 b is formed at the tip of the latch 20 a, and the hook portion 20 b is locked by being hooked on a hook portion 5 a provided in the header case 5. The urging force applied to the latch 20a is also released by an unlocking means (not shown), and the hook portion 20b at the tip is detached from the latching portion 5a in accordance with the opening operation of the door panels 2 and 3.

  The car door device provided in the car not shown includes a car door opening / closing drive device that drives the car door to open and close, and a car side engagement device for transmitting the door opening / closing force of the landing door to the landing door device 1. Have. When the car reaches the hall landing and stops, the car side engaging device and the locking device 20 of the landing door device 1 are engaged, the locking device 20 is unlocked, and the car side device is engaged. The landing door device 1 is opened and closed by receiving a door opening / closing force from the car door device via the combination device and the locking device 20.

  That is, the door panels 2 and 3 are fixed to the hangers 6 and 7, and the hanger rollers 9a and 9b are fixed to the hangers 6 and 7, respectively. The landing door device 1 has a mechanism in which the hanger roller 9a rolls on the hanger rail 8a, and the door panels 2 and 3 slide when the hanger roller 9b rolls on the hanger rail 8b. A locking device 20 is attached to the landing door device 1 so that it cannot be opened from the landing side when the door is closed, and the locking device 20 is unlocked only when the car is at the landing door position. Yes. Further, even if the landing door is opened, the reel closer 16 is fixed to the hanger 7 so that the door panels 2 and 3 are automatically closed. The reel closer 16 is a device that winds up the rope 15 with a mainspring spring, and pulls the hanger 7 by fixing the rope end 19 to the rope end fixture fixed to the header case 5 as shown in FIG. The door is closed.

  When the landing door device 1 having such a configuration opens from the door-closed state, the door panels 2 and 3 move toward the left as shown in FIG. The door panel 3 moves at a high speed, and the door panel 2 moves at a low speed. The door panels 2 and 3 move at a speed ratio of 2: 1, and they are stored in the left and right door pockets (not shown) in a stacked manner.

  When the door is closed, the door panel 3 moves from the door pocket toward the sheave fixture 17 side at a high speed, and the door panel 2 also moves toward the sheave fixture 17 side at a slow speed. By this movement, the door panels 2 and 3 are lined up and down in front and back, and the entrance / exit 4 of the elevator platform is closed. When the car stops and stops, the door panel 3 is driven by the car door apparatus, and the door panels 2 and 3 move in conjunction with each other by this driving force. This driving force is interrupted immediately before the door panels 2 and 3 are completely closed.

  In the reel closer 16, the rope 15 is wound around the reel 15 by elastically rotating the reel biased in one rotation direction. Due to the winding force, the door panel 3 is biased in the door closing direction, the door panel 3 is given a door closing force, and moves to the closing position.

  In this way, the landing door device 1 can obtain a door closing force that is greater than the door closing force obtained by the conventional structure by devising the structure of the reel type door closing device, and this increased door. The reel type door closing force promoting device can be used by using the closing force. The reel-type door closing device attached to the hanger winds up the rope, allowing the landing door to self-close, but the rope end of the rope is fixed to the hanger via the sheave attached to the header case. By doing so, since the roping becomes 2: 1, the magnitude of the door closing force can be made twice that of the conventional door closing force.

  In the conventional example, when the weight of the landing door is large, the mainspring type reel closer cannot exert a large force, and the landing door device has a door self-closing force of a size required when the landing door is self-closing. May not be generated. In the conventional example, when the weight of the landing door is large, the mainspring type reel closer cannot exert a large force, and the landing door device has a door self-closing force of a size required when the landing door is self-closing. May not be generated. On the other hand, in the landing door device 1, one rope 15 is stretched between the sheave 18 and the reel closer 16, and one rope 15 is stretched between the sheave 18 and the hanger 7. In this state, since the reel closer 16 is configured to wind these two ropes 15, according to the landing door device 1, the door self-closing force is twice as large as the door self-closing force of the conventional example. You will be able to get

  Conventionally, the landing door device has a rope terminal fixed to the header case. On the other hand, the landing door device 1 has a sheave 18 attached to the header case 5, and the space used for the landing door device 1 is substantially the same as the space used for the landing door device according to the conventional example. The landing door device 1 remains in the same space as the conventional example, and the door closing force can be doubled compared to the conventional example. Conventionally, the reel type door closing device has been used as a weight type door closing device (FIG. 14) because the door closing force is insufficient, but the landing door device 1 has this reason. Even in this case, a reel closer type door closing device can be used.

  If there is a pressure difference between the air pressure on the top floor and the air pressure on the bottom floor, the hoistway 4 is used as a wind passage, a large wind pressure is applied to the landing door, and a large door is closed to close the landing door. It takes power. Even in this case, the landing door device 1 can apply a sufficiently large door closing force to the door panels 2 and 3. In addition, when packings for smoke shielding are installed in the gap between the landing door and the three-way frame, in order to move against the frictional force generated by the sliding between the packing and the landing door, a larger door closure is required. It takes power. Also in this case, the landing door device 1 can apply a sufficiently large door closing force to the door panels 2 and 3. The landing door device 1 can easily obtain a large door closing force without changing the space where the landing door device 1 is installed.

  The reel closer 16 is installed on the back side of the hanger 7. The reel closer 16 is closed by pulling the door panels 2 and 3 together. In this case, since the reel closer 16 is hidden behind the hanger 7, the hoistway 4 is not visible even in a glass-lined observation elevator. Therefore, it is possible to make the door closing device invisible from the viewpoint of an elevator for viewing.

  Thus, according to the landing door device 1, a door closing device having a large door closing force can be obtained with the same installation space as that of the conventional example, and an elevator with excellent design that can be used for a viewing elevator. It is possible to realize a platform device.

  Further, by improving the quality of the mainspring built into the reel of the reel closer, it is possible to obtain a further door self-closing force by allowing a larger amount of rope to be wound.

(Second Embodiment)
The elevator landing apparatus according to the second embodiment of the present invention is also a landing door apparatus, and FIG. 4 shows the configuration of the apparatus. Fig.4 (a) is a front view of the principal part of the landing door apparatus seen from the hoistway side. FIG. 4B is a right side view of the apparatus. Among the reference numerals shown in these drawings, elements having the same reference numerals as those described above represent the same elements.

  A sheave 21 is pivotally attached to the sheave fixture 17. The sheave 21 is a driven sheave. A sheave 22 is pivotally attached to the hanger 7. The sheave 22 is also a driven sheave. The rotation axis of the sheave 21, the rotation axis of the sheave 22, and the rotation axis of the reel closer 16 are parallel to each other. The middle part of the rope 15, one end of which is fixed to the reel closer 16, is wound around the sheave 21 from the upper part toward the lower part and is turned back. The folded rope 15 is wound around the sheave 22 from the lower part to the upper part and further folded, and the rope end 23 of the rope 15 is fixed to the protruding portion of the sheave attachment 17. The diameter of the mainspring spring of the reel closer 16 is larger than that of the example of the first embodiment, so that a larger force can be obtained than the rope 15 can be wound.

  With such a configuration, the landing door apparatus 1A performs door closing and door opening, and the reel 15 of the reel closer 16 is elastically rotated, whereby the rope 15 is wound up. One rope 15 is stretched between the reel closer 16 and the sheave 21, one rope 15 is stretched between the sheave 21 and the sheave 22, and further between the sheave 22 and the sheave attachment 17. The reel closer 16 winds these three ropes 15 in a state in which one rope 15 is stretched over the two. The door panel 3 is urged in the door closing direction by the entrainment force. The door panel 3 is given a door closing force and moves to the closing position.

  According to the elevator landing apparatus according to this embodiment of the present invention, the sheave 22 is attached to the hanger 7 and the rope terminal 23 of the reel closer 16 is fixed to the header case 5 side. Can be tripled.

(Third embodiment)
FIG. 5 is a configuration diagram of a landing door device as an elevator landing device according to a third embodiment of the present invention. Fig.5 (a) is a front view of the principal part of the landing door apparatus seen from the hoistway side, FIG.5 (b) is a right view of the apparatus. Among the reference numerals shown in these drawings, elements having the same reference numerals as those described above represent the same elements.

  In the landing door apparatus 1B, the reel closer 16 is pivotally attached to the header case 5 side, the sheave 24 is pivotally attached to the hanger 6 side, and the rope 15 is connected to the rope case 25 via the sheave 24. It is fixed to. Here, the sheave 24 is a driven sheave. The rotation axis of the sheave 24 and the rotation axis of the reel closer 16 are parallel to each other. The width of the sheave fixture 17 a is wider than the width of the sheave fixture 17. The rope 15 is wound around the sheave 24 from the upper part toward the lower part and folded back, and the rope terminal 25 is fixed to the protruding part of the sheave attachment 17a.

  In the landing door apparatus 1B having such a configuration, one rope 15 is hung between the reel closer 16 and the sheave 24, and one rope 15 is hung between the sheave 24 and the sheave attachment 17a. The reel closer 16 winds these two ropes 15. By this entrainment force, the door panel 3 is urged in the door closing direction and moves to the closing position.

  According to the elevator landing apparatus according to this embodiment of the present invention, even when the reel closer 16 is fixed to the header case 5 side and the sheave 24 is fixed to the hanger side, the landing door apparatus 1 of the first embodiment is used. The same effect as that obtained can be obtained. That is, the magnitude of the door closing force can be double that of the conventional door closing force.

(Modification of the third embodiment)
Further, a sheave may be attached to the header case 5 side with respect to the configuration of FIG. FIG. 6 is a configuration diagram of an elevator landing apparatus according to a modification of the third embodiment of the present invention. Of the reference numerals shown in the figure, elements having the same reference numerals as those described above represent the same elements.

  The landing door device 1C has a wide sheave attachment 17b, and a sheave 26 that is a driven sheave is pivotally attached to the left side of the sheave attachment 17b. The rope 15, one end of which is fixed to the reel closer 16, is wound around the sheave 24 from the upper part to the lower part and is folded back. The folded rope 15 is wound around the sheave 26 from the upper part to the lower part and further folded, and the rope end 27 of the rope 15 is fixed on the hanger 7. The diameter of the main spring of the reel closer 16 is larger than that in the third embodiment.

  In the landing door device 1 </ b> C having such a configuration, one rope 15 is stretched between the reel closer 16 and the sheave 24, and one rope 15 is stretched between the sheave 24 and the sheave 26. One rope 15 is also stretched between the sheave 26 and the hanger 7, and the reel closer 16 winds these three ropes 15.

  According to the elevator landing apparatus according to this modification, even when the rope end 27 of the reel closer 16 is fixed to the hanger side via the hanger side sheave and the header case side sheave, respectively, as in the example of FIG. The door closing force can be tripled.

  In the landing door device 1 </ b> C, the rope 15 wound around the sheave 26 is folded back from the upper portion of the sheave 26 to the lower portion, but this landing door device 1 </ b> C replaces the sheave 26 with a small-diameter sheave. It may be provided at a position above the axial mounting position. In this case, the rope 15 drawn out from the reel closer 16 is wound around the sheave 24 from the upper part to the lower part and then folded, and then is wrapped around the small-diameter sheave (not shown) from the lower part to the upper part. 6 to be fixed. Even if comprised in this way, a door closing force 3 times as large as the door closing force of a prior art example can be obtained.

(Fourth embodiment)
The elevator landing apparatus according to the fourth embodiment of the present invention is a high-speed door in which a high-speed door and a low-speed door are connected by a rope of a reel closer, and the reel closer is attached by the force of the reel closer winding the rope. Is configured to pull the low speed door.

  FIG. 7A is a top view of the elevator landing apparatus according to the present embodiment, in which the upper side and the lower side represent the hall landing side and the hoistway side, respectively. FIG. 7B is a front view of the apparatus, and shows the main part of the upper part of the apparatus viewed from the hoistway side. In these drawings, the same reference numerals represent the same elements.

  The elevator landing apparatus according to the present embodiment is also a landing door apparatus that is provided at the hall entrance and exits the entrance. The landing door device 28 includes two sliding door-type door panels 29 and 30 that are shifted to the front and rear sides of the landing side and the hoistway side, and these door panels 29 and 30 are moved in the same direction at different speeds to get on and off the entrance. Is a two-speed door device that opens and closes. The door panels 29 and 30 are a low-speed door and a high-speed door, respectively. The landing door device 28 includes a header case fixed to a three-way frame, and a rope-type interlocking mechanism that is fixed to the header case and has the same configuration as the example of FIG. This interlocking mechanism moves the door panel 30 at a speed twice that of the door panel 29.

  A low-speed hanger 31 for a low-speed door and a high-speed hanger 32 for a high-speed door are attached to the upper ends of the door panels 29 and 30, respectively. Two hanger rollers 33 and 34 are pivotally attached to the surface of the low speed hanger 31 on the hall landing side. The low-speed hanger 31 is rolled around the hanger rail 35 via these hanger rollers 33 and 34. Two hanger rollers 36 and 37 are pivotally mounted on the surface of the high-speed hanger 32 for the high-speed door on the hall landing side, and the high-speed hanger 32 can also roll to the hanger rail 38 via the hanger rollers 36 and 37. It is multiplied by. The door panels 29 and 30 are suspended below a header case (not shown), and are movable in the left-right direction in this suspended state.

  The upper right end of the low-speed hanger 31 is processed so as to extend to the vicinity of the right end of the high-speed hanger 32 when both doors are fully closed to form a low-speed hanger extension 31a, and the right end of the low-speed hanger extension 31a is further It is bent to the hoistway side to form a bent portion 31b. The landing door device 28 is provided with a reel closer 39 on the high-speed hanger 32. The reel closer 39 is a reel-type door closing device, and includes a mainspring spring, a reel, and a rope 40. The reel closer 39 is installed on the high-speed hanger 32 so that the side surface of the reel is parallel to the surface of the high-speed hanger 32. The reel as the reel closer fixing portion is provided on the low speed hanger 31, and the rope terminal of the rope 40 that is fed out and wound from the reel is fixed to the bent portion 31 b on the low speed hanger 31 side.

  Accordingly, when the reel closer 39 winds the rope 40, a leftward force in FIG. 7 acts on the low-speed hanger 31 via the bent portion 31b. The low speed hanger 31 moves to the left along the hanger rail 35 through a distance corresponding to the length of the rope 40 wound up.

  Accordingly, the landing door device 28 installs the reel and the rope terminal for fixing the reel closer 39 on the two hanger panels, respectively, and draws the opposite panel end portions of the two door panels 29 and 30 constituting the door. As described above, the door panels 29 and 30 are moved relative to each other to perform the door closing operation.

  The operation of the landing door device 28 having such a configuration will be described with reference to FIG. FIG. 8 is a view for explaining the operating principle of the landing door device 28. FIG. 8A is a top view of each door panel showing the positional relationship between the door panels 29 and 30 when the door is closed. FIG. 8B is a top view of each door panel showing the positional relationship between the door panels 29 and 30 when the door is opened. The point P1 represents the right end portion of the upper surface portion of the door panel 29. The point P2 represents the left end portion of the upper surface portion of the door panel 30. W represents the width of the entrance / exit. Elements having the same reference numerals in these drawings are the same elements.

  When the door is closed, as shown in FIG. 8A, the right end portion P1 of the low speed door panel 29 and the left end portion P2 of the high speed door panel 30 are close to each other with a distance L therebetween. On the other hand, when the door is opened, as shown in FIG. 8B, the right end portion P1 of the door panel 29 and the left end portion P2 of the door panel 30 on the opposite side are separated by a distance L. When the landing door device 28 relatively moves the door panels 29 and 30 so as to reduce the distance L, the doors are closed.

  The low-speed door panel 29 and the high-speed door panel 30 are connected by an interlocking mechanism including a rope and an interlocking sheave shown in FIG. 9, and relative movement is performed by the interlocking mechanism. FIG. 9 is a top view of an interlocking mechanism that moves the door panels 29 and 30 in conjunction with each other. Of the reference numerals shown in FIG. 9, elements having the same reference numerals as those shown in FIG. 2 represent the same elements. 12 represents the side of the interlocking sheave. The interlocking mechanism 10 </ b> A includes an arm 11 fixed to the low-speed hanger 31, a pair of interlocking sheaves 12 each pivotally attached to the arm 11, and two interlocking ropes 13 wound around the interlocking sheaves 12. And have. Each end of each interlocking rope 13 is connected to a fixed bracket 14 fixed to the header case 41 so as to be a fixed end. The other end of each interlocking rope 13 is connected to a connection bracket 42 attached to the high-speed hanger 32. As shown in FIG. 9, the interlocking mechanism 10 </ b> A relatively moves the low-speed door panel 29 fixed to the low-speed hanger 31 and the high-speed door panel 30 fixed to the high-speed hanger 32, thereby closing the door as a door device. I do.

  Moreover, the low-speed hanger 31 of FIG. 7 has a structure in which a part of the upper side of the hanger is extended to the right and is wrapped with the high-speed hanger 32 in a direction orthogonal to the door panel surface. A reel closer 39 is attached to the back side of the high-speed hanger 32, and the rope end of the rope 40 is attached to the low-speed hanger extension 31a. With this structure, the reel closer 39 generates a force in the direction in which the rope 40 is wound, so that the force acts in a direction to reduce the distance L shown in FIG. 8, and the door is closed by the interlocking mechanism 10A in FIG. The operation will be performed.

  Thus, according to the elevator landing apparatus according to the present embodiment, a force is applied in the direction in which the two door panels 29 and 30 are closed, so that a door self-closing force can be obtained.

(First Modification of Fourth Embodiment)
Further, in the elevator landing apparatus according to the fourth embodiment of the present invention, the reel closer 39 is attached to the low speed hanger 31 side, and the rope end of the rope 40 drawn from the reel closer 39 is fixed to the high speed hanger 32. It may be configured. Even in this case, the same effect as that obtained by the landing door device 28 can be obtained. Further, the elevator landing apparatus according to the fourth embodiment of the present invention may be configured by forming the hanger extension on the high speed hanger 32 side instead of forming the hanger extension on the low speed hanger 31 side.

(Second modification of the fourth embodiment)
The elevator landing apparatus according to the fourth embodiment of the present invention is configured such that the high speed door and the low speed door are connected by a tension spring that pulls each other, and the high speed door to which the tension spring is attached pulls the low speed door. May be.

  FIG. 10A is a top view of an elevator landing apparatus according to a second modification of the fourth embodiment of the present invention. FIG. 10B is a front view of the apparatus. In these drawings, the same reference numerals represent the same elements.

  The landing door device 43 includes a spring locking tool 44 provided on the surface of the hall landing side of the high-speed hanger 32, and a tension spring having one end locked to the spring locking tool 44 and the other end locked to the bent portion 31b. 45. The low speed hanger 31 and the high speed hanger 32 are connected by the same interlocking mechanism as the example of FIG.

  The landing door device 43 having such a configuration separates the right end portion of the door panel 29 and the left end portion of the door panel 30 when the door is opened through the interlocking mechanism, while FIGS. 10A and 10B are opened when the door is closed. ), The right end portion of the door panel 29 and the left end portion of the high-speed door panel 30 are brought close to each other. The landing door device 43 relatively moves the door panels 29 and 30 so as to reduce the distance between the right end portion of the door panel 29 and the left end portion of the door panel 30. The door is closed by the relative movement of the door panels 29 and 30.

  According to the landing door device 43, a self-closing force can be reliably applied to the door with a simple mechanical configuration.

  Further, the landing door device 43 may be configured by forming a hanger extension on the high speed hanger 32 side instead of forming the hanger extension on the low speed hanger 31 side.

(Fifth embodiment)
The elevator landing apparatus according to the fifth embodiment of the present invention is configured by using a downward movement due to gravity of weight as a power source that generates a force for winding a rope connecting the high speed door and the low speed door. .

  FIG. 11 is a front view of a main part of the elevator hall device according to the present embodiment. In the figure, elements having the same reference numerals as those shown in FIG. 3 are the same as those. The landing door device 46 has a header case 5, and a sheave fixture 17 is provided on the right side of the header case 5. A sheave 18 is pivotally attached to the sheave fixture 17. On the left side of the header case 5, another sheave 47 that is a driven sheave is pivotally attached. A middle portion of the rope 15 having one end wound around the sheave 18 is wound around the sheave 47 from the upper part to the lower part, and a weight 48 is suspended from the other end of the rope 15.

With such a configuration, the load of the weight 48 is applied to the rope end 19 of the rope 15 via the right sheave 18, and the door panel 3 is biased in the door closing direction. The door panel 3 is given a door closing force, and the door panel 3 moves to the closed position. According to the elevator landing device according to this embodiment of the present invention, the space of the hall landing where the door device is installed can be changed. In addition, a door closing force twice as large as that of the conventional example can be obtained. Further, the weight 48 and the space occupied by the top and bottom of the weight 48 can be covered with a cover or the like, and the weight 48 can be installed so as not to be seen from the hall platform. For example, by providing a weight 48 and a space in which the weight 48 moves so as not to be seen from the hall platform such as a three-way frame, a necessary stroke amount can be secured above and below the weight 48 itself. Since a stroke amount can be secured, a lightweight weight can be used as the weight 48.

(Modification of the fifth embodiment)
Further, FIG. 12 shows a landing door device 49A having a configuration in which a weight 48 is suspended instead of the reel closer 16 of the landing door device 1A of FIG. FIG. 12 is a front view of the main part of the elevator hall device according to the first modification of the present embodiment. FIG. 13 shows a landing door device 49B having a configuration in which a weight 48 is suspended instead of the reel closer 16 of the landing door device 1B of FIG. FIG. 13 is a front view of a main part of an elevator hall device according to a second modification of the present embodiment.

  According to the elevator landing apparatuses according to these modified examples, a large door closing force can be obtained without changing the installation space of the door apparatus. According to each door apparatus, the door closing force of 3 times and 2 times of the conventional example can be obtained. Further, since the weight 48 and the space in which the weight 48 moves can be arranged so as not to be seen from the hall landing, a necessary stroke amount can be secured above and below the weight 48 itself. Weights can be used.

(Other)
Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In the above embodiment, the reel closers 16 and 39 use springs, but the reel closers 16 and 39 provide a substantially constant force in the winding direction regardless of the draw stroke amount of the ropes 15 and 40. You may use the constant load spring which can be made to act on a drawer end.

  In addition, various inventions can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiments may be appropriately combined.

1 is a configuration diagram of an elevator landing apparatus according to a first embodiment of the present invention. It is a perspective view of an interlocking mechanism. It is a figure expanding and showing the upper part of the elevator landing device concerning a 1st embodiment of the present invention. It is a block diagram of the elevator landing apparatus which concerns on the 2nd Embodiment of this invention. It is a block diagram of the elevator landing apparatus which concerns on the 3rd Embodiment of this invention. It is a block diagram of the elevator landing apparatus which concerns on the modification of the 3rd Embodiment of this invention. It is a block diagram of the elevator landing apparatus which concerns on the 4th Embodiment of this invention. It is a figure for demonstrating the operation principle of the elevator landing apparatus which concerns on the modification of the 4th Embodiment of this invention. It is a top view of the interlocking mechanism of a single door 2 door. It is a block diagram of the elevator landing apparatus which concerns on the 2nd modification of the 4th Embodiment of this invention. It is a front view of the principal part of the elevator landing apparatus which concerns on the 5th Embodiment of this invention. It is a front view of the principal part of the elevator landing apparatus which concerns on the 1st modification of the 5th Embodiment of this invention. It is a front view of the principal part of the elevator landing apparatus which concerns on the 2nd modification of the 5th Embodiment of this invention. It is a front view of the conventional weight-type door apparatus. It is a figure which shows an example of the conventional reel type door apparatus.

Explanation of symbols

  1, 1A, 1B, 1C, 28, 43, 46, 49A, 49B ... landing door device (elevator landing device), 2, 3, 29, 30 ... door panel, 4 ... hoistway, 5, 41 ... header case, 5a ... Hook, 6,7 ... Hanger, 8a, 8b, 35,38 ... Hanger rail, 9a, 9b, 33,34,36,37 ... Hanger roller, 10,10A ... Interlocking mechanism, 11 ... Arm, 12 ... interlocking sheave, 13 ... interlocking rope, 14 ... fixed bracket, 15, 40 ... rope (striated body), 16, 39 ... reel closer (door closing device), 17, 17a, 17b ... sheave fittings, 18, 21 , 22, 24, 26, 47 ... Sheave, 19, 23, 25, 27 ... Rope terminal (end of striatum), 20 ... Locking device, 20a ... Latch, 20b ... Hook part, 31 ... Low speed hanger, 31a Slow hanger extension, 31b ... bent portion, 32 ... fast hanger, 42 ... connection bracket, 44 ... spring locking device, 45 ... tension spring, 48 ... weight.

Claims (7)

A header case provided at the top of the elevator hall;
A hanger rail extending in the width direction of the landing entrance to the header case,
A roller guided by this hanger rail,
A hanger that moves along the hanger rail with this roller;
A door panel that is suspended on the hanger and that opens the landing opening and closes the landing opening,
A sheave provided in the header case;
A reel, a linear body from which the terminal is pulled out, and a means for applying a winding force for winding the linear body to the reel, and the winding force causes the door panel to self-close in the door closing direction. A door closing device for applying force,
The elevator landing apparatus characterized in that the linear body of the door closing device is wound around the sheave, and the terminal of the linear body is fixed to the hanger. A header case provided at the top of the elevator hall;
A hanger rail extending in the width direction of the landing entrance to the header case,
A roller guided by this hanger rail,
A hanger that moves along the hanger rail with this roller;
A door panel that is suspended on the hanger and that opens the landing opening and closes the landing opening,
A first sheave provided in the header case;
A second sheave provided on the hanger;
A reel, a linear body from which the terminal is pulled out, and a means for applying a winding force for winding the linear body to the reel, and the winding force causes the door panel to self-close in the door closing direction. A door closing device for applying force,
The wire body of the door closing device is wound around the first sheave and then wound around the second sheave, and the end of the wire body is fixed to the header case. Elevator landing equipment. The hanger is further provided with another sheave and the door closing device is provided in the header case,
2. The elevator landing apparatus according to claim 1, wherein the linear body is wound around the other sheave, and the end of the linear body is fixed to the header case. The door closing device is provided in the header case,
3. The wire rod according to claim 2, wherein the wire is wound around the first sheave after being wound around the second sheave, and the end of the wire is fixed to the hanger. Elevator landing equipment. The door panel is composed of a plurality of door panels, each of which constitutes a sliding door type door, and the reel of the door closing device is fixed to any one door panel, and the other one door panel is provided with the linear member. The terminal is fixed,
The door closing device draws the door closing end of any one of the door panels and the door opening end of the other door panel relative to each other to move these door panels relatively. The elevator landing apparatus according to claim 1, wherein the door closing operation is performed. A header case provided at the top of the elevator hall;
A hanger rail extending in the width direction of the landing entrance to the header case,
A plurality of rollers each guided by this hanger rail,
A plurality of hangers each moving along the hanger rail by these rollers;
Each of which is suspended on each hanger, a plurality of sliding door type door panels for opening and closing the landing gate,
A tension spring connecting between any one of these door panels and the other door panel, and
By the spring force of this tension spring, the door closing end of one of the door panels and the door opening end of the other door panel are pulled toward each other so that the door panels move relative to each other. An elevator landing apparatus characterized by performing a door closing operation by being moved. A header case provided at the top of the elevator hall;
A hanger rail extending in the width direction of the landing entrance to the header case,
A roller guided by this hanger rail,
A hanger that moves along the hanger rail with this roller;
A door panel that is suspended on the hanger and that opens the landing opening and closes the landing opening,
A sheave provided in the header case;
A door closing device having a reel, a linear body from which the terminal is pulled out from the reel, and a weight connected to the linear body, and applying a self-closing force to the door panel when the weight is lowered by gravity And comprising
The elevator landing apparatus characterized in that the linear body of the door closing device is wound around the sheave, and the end of the linear body is fixed to either the hanger or the header case.

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