JP2006199413A - Landing door device for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a landing door device for an elevator capable of facilitating installation to the elevator. <P>SOLUTION: A hanger case 2 provided on an upper part of a landing doorway has upper and lower hanger rails 4, 5 extending to a widthwise direction of the landing doorway. A roller hanger 7 displaceable along the hanger rails 4, 5 between a projection position projecting from the hanger case 2 to a door opening direction and a storage position positioned at a door closing side more than the projection position is supported on the hanger case 2. A landing door 12 displaceable between the closed position and the opened position positioned at the outside in the widthwise direction more than the door closed position is supported on the roller hanger 7. The roller hanger 7 is displaced to the projection position by displacement of the landing door 12 to the opened position and is displaced to the storage position by displacement of the landing door 12 to the closed position. The landing door 12 is supported on a part projected from the hanger case 2 of the roller hanger 7 when it is positioned at the opened position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an elevator hall door device that opens and closes an elevator hall entrance / exit.

  In a conventional elevator landing door device, a pair of landing doors are reciprocally displaced toward the entrance of the landing doorway in order to open and close the landing doorway. At the upper part of the hall entrance / exit, there is provided a hanger case that supports the doors of the halls so that they can be displaced. The full length of the hanger case is about twice as large as the size of the entrance / exit of the entrance in order to fully open the entrance / exit by the doors of each entrance (see Patent Document 1).

JP-A-5-319747

  However, since the overall length of the hanger case becomes long, the landing door device may be damaged when the hanger case is transported or carried into the hoistway.

  The present invention has been made to solve the above problems, and an object thereof is to obtain an elevator landing door device that can be easily installed in an elevator.

  The elevator landing door device according to the present invention has a support rail extending in the entrance direction of the elevator entrance and exit, and is supported by a hanger case provided at the upper part of the landing entrance and the hanger case, and is displaceable along the support rail. A displacement door, a landing door that opens and closes the landing doorway, and a door hanger that is provided on an upper portion of the landing door and is displaceable relative to the displacement body in a direction along the support rail. A landing door is located between the door closing position where the landing door closes the landing doorway and the door opening position where the door of the landing opens the landing doorway. The body is displaced from the hanger case to the projecting position protruding in the door opening direction due to the displacement of the landing door to the door opening position, and the body door is positioned closer to the door closing side than the protruding position due to the displacement of the landing door to the door closing position. To containment position It adapted to be position, landing door, when in the door open position, and is supported by the protruding portion from hanger case of the displacement body.

  In the elevator landing door device according to the present invention, when the landing door is in the door open position, the landing door is supported by a portion protruding from the hanger case of the displacement body. Can also be displaced to the outside in the frontage direction. Thereby, the length dimension of a hanger case can be made small and conveyance of a hanger case and carrying in into a hoistway can be made easy. Therefore, the trouble at the time of installation of a landing door apparatus can be reduced, and installation of a landing door apparatus can be made easy.

Embodiment 1 FIG.
FIG. 1 is a front view of an essential part showing a landing door device for an elevator according to Embodiment 1 of the present invention. Moreover, FIG. 2 is a principal part front view which shows the landing door apparatus of an elevator when the landing doorway of FIG. 1 is open. Further, FIG. 3 is a side view of a main part showing the elevator landing door device of FIG. FIG. 1 is a view showing a landing door device for an elevator when the landing doorway is closed. In the figure, a hanger case 2 extending in the direction of the frontage of the hall entrance 1 is provided at the upper part of the hall entrance 1. The length dimension of the hanger case 2 is substantially the same as the width dimension (dimension in the frontage direction) of the hall entrance 1.

  4 is a front view showing the hanger case 2 of FIG. 1, and FIG. 5 is a side view showing the hanger case 2 of FIG. As shown in FIGS. 4 and 5, the hanger case 2 includes a case fixing portion 3 fixed to the upper portion of the hall entrance 1 and a pair of supports provided in the case fixing portion 3 and extending toward the entrance of the hall entrance 1. It has the upper hanger rail 4 and the lower hanger rail 5 which are rails. The case fixing part 3 has a short side part 3a arranged horizontally and a long side part 3b extending downward from a side end part of the short side part 3a. The upper hanger rail 4 and the lower hanger rail 5 are fixed to the long side portion 3b at a distance from each other in the vertical direction.

  A guide rail (arm guide portion) 6 having a U-shaped cross section extending in the direction of the frontage of the landing entrance 1 is fixed to the short side portion 3a (that is, the upper portion of the hanger case 2). The length dimension of the guide rail 6 is substantially the same as the length dimension of the hanger case 2.

  A pair of roller hangers (displacement bodies) 7 that can be displaced along the upper hanger rail 4 and the lower hanger rail 5 are supported on the hanger case 2. The length dimension of each roller hanger 7 is smaller than half the width dimension of the landing entrance 1 (FIGS. 1 and 2).

  6 is a front view showing the roller hanger 7 of FIG. 1, and FIG. 7 is a side view showing the roller hanger 7 of FIG. As shown in FIGS. 6 and 7, each roller hanger 7 is provided on the hanger plate 8 arranged vertically so as to face the upper hanger rail 4 and the lower hanger rail 5, and the upper hanger rail 4 and the lower hanger rail 4. A plurality of first rollers 9 sandwiched between the hanger rails 5 and a second roller provided on a portion of the hanger plate 8 opposite to the first rollers 9 and spaced from each other in the vertical direction. A plurality of upper rollers 10 and a plurality of lower rollers 11 are provided.

  The first rollers 9 are arranged at intervals from each other in the direction along the upper hanger rail 4 and the lower hanger rail 5. Each first roller 9 is configured to roll on the lower hanger rail 5 due to the displacement of the roller hanger 7 with respect to the hanger case 2. The upper rollers 10 and the lower rollers 11 are also arranged at intervals from each other in the direction along the upper hanger rail 4 and the lower hanger rail 5.

  A landing door 12 is supported on each roller hanger 7. Each landing door 12 is provided at a landing door 13 that opens and closes the landing doorway 1, and a door hanger 14 that is provided on an upper portion of the landing door 13 and that can be displaced with respect to the roller hanger 7 in a direction along the upper hanger rail 4 and the lower hanger rail 5. And have.

  Each landing door 12 is located at the door closing position (FIG. 1) where the landing door 13 closes the landing doorway 1 and outside the doorway entrance 1 from the door closing position, and the landing door 13 passes the landing doorway 1. It can be displaced between the open door opening position (FIG. 2). Each roller hanger 7 can be displaced between a protruding position (FIG. 2) protruding from the hanger case 2 in the door opening direction and a receiving position (FIG. 1) positioned closer to the door closing side than the protruding position. Yes. Each roller hanger 7 is displaced to the protruding position by the displacement of each landing door 12 to the door open position, and is displaced to the protruding position by the displacement of each landing door 12 to the door closing position.

  Moreover, when each roller hanger 7 exists in an accommodation position, the landing door 12 is supported by the roller hanger 7 whole (FIG. 1). When each roller hanger 7 is in the protruding position, the landing door 12 is supported by the portion of each roller hanger 7 protruding from the hanger case 2 (FIG. 2).

  Here, the car that is raised and lowered in the hoistway is mounted with a pair of car doors that open and close the car doorway and a door drive device that displaces each car door (none of which is shown). Between the landing door 13 and the car door, there is provided an engaging device 15 for integrally displacing the landing door 13 and the car door toward the entrance of the landing doorway 1 (FIG. 2). The engaging device 15 includes a vane 16 provided in each car door and extending in the vertical direction, and a pair of drive rollers that are provided in the door 13 of each landing and engage the vane 16 when the car is stopped on each floor. 17. Each landing door 12 is displaced between the door closing position and the door opening position by the displacement of each car door when the landing door 13 is engaged with the car door by the engaging device 15. It has become.

  8 is a front view showing the door hanger 14 of FIG. 1, and FIG. 9 is a side view showing the door hanger 14 of FIG. As shown in FIGS. 8 and 9, each door hanger 14 is provided on the door fixing portion 18 fixed to the upper part of the door 13 of the landing, and the door fixing portion 18. And a door rail 19 sandwiched between the two. The length dimension of each door hanger 14 is substantially the same as the width dimension of the landing door 13. Each door rail 19 extends in a direction along the upper hanger rail 4 and the lower hanger rail 5. Each upper roller 10 and each lower roller 11 is rolled on the door rail 19 by the displacement of the door hanger 14 with respect to the roller hanger 7.

  A cover 30 that covers the roller hanger 7 is provided on the upper portion of the door fixing portion 18 (FIGS. 1 to 3). The length of the cover 30 is almost the same as the length of the door hanger 14. The door fixing portion 18 is provided with a holding arm 20 that can be displaced integrally with the landing door 12. The holding arm 20 includes an engagement roller 21 that is an engagement portion that can be displaced along the guide rail 6 while being engaged with the guide rail 6, an attachment portion 22 that is attached to the door fixing portion 18, and an engagement roller 21. And a connecting portion 23 that connects the mounting portion 22 to each other.

  The engagement roller 21 is configured to roll along the guide rail 6 due to the displacement of the landing door 12 with respect to the hanger case 2. The attachment portion 22 is disposed on the door opening side with respect to the engagement roller 21. The connecting portion 23 is fixed to the door fixing portion 18 via the attachment portion 22. Further, the connecting portion 23 is provided to be inclined from the mounting portion 22 toward the engaging roller 21. This prevents the engagement roller 21 from being detached from the guide rail 6 when the landing door 12 is displaced to the door open position.

  In addition, the hanger board 8 is provided with a door closing side stopper 24 and a door opening side stopper 25 which are arranged at a distance from each other in the frontage direction of the hall entrance 1 (FIGS. 1, 2, 6 and 7). Further, the door fixing portion 18 is provided with an engaging claw 26 disposed between the door closing side stopper 24 and the door opening side stopper 25 in the opening direction of the hall entrance 1 (see FIGS. 1 and 2). 8, 9). The engagement claw 26 is engaged with the door closing side stopper 24 by the displacement of the landing door 12 in the door closing direction, and is engaged with the door opening side stopper 25 by the displacement of the landing door 12 in the door opening direction. It has become.

  The roller hanger 7 is displaced to the accommodation position when the landing door 12 is displaced to the door closed position while the engaging claw 26 is engaged with the door closing stopper 24. Further, the roller hanger 7 is displaced to the protruding position when the landing door 12 is displaced to the door opening position while the engaging claw 26 is engaged with the door opening side stopper 25.

  An interlock 28 having a pair of return portions 27 is fixed to the center portion of the hanger case 2 so as to avoid the roller hanger 7 and the landing door 12 (FIGS. 1 and 2). Each door hanger 14 is provided with a latch 29 that can be rotated between a lock position engaged with the return portion 27 and a release position where the engagement with the return portion 27 is released (see FIG. 1 and FIG. 1). Figure 2). In this example, the release position is located above the lock position. Each car door is provided with a lock release device (not shown) for rotating each latch 29 from the lock position to the release position. The latch 29 is rotated to the release position by the lock release device when the car is stopped on the floor, and is rotated to the lock position when the car is at a position different from the floor.

  Next, the operation will be described. When the car is not landed, the landing door 12 is displaced to the door closing position. When the car is stopped on the floor, each vane 16 is engaged with the drive roller 17, and the engagement between each latch 29 and the interlock 28 is released by the lock release device.

  Thereafter, each car door is displaced in the door opening direction by the door driving device. At this time, each landing door 12 is displaced together with each car door, and each holding arm 20 is displaced together with the landing door 12 while being guided by the guide rail 6.

  Thereafter, the engaging claw 26 is engaged with the door opening side stopper 25 and the roller hanger 7 is displaced together with the landing door 12 in the door opening direction. Thereafter, the landing door 12 reaches the door open position, and the roller hanger 7 reaches the protruding position. In this way, the hall entrance 1 is opened (FIG. 2).

  When the landing doorway 1 is closed, the doors of each car are displaced in the door closing direction by the door driving device. Thereby, the landing door 12 is also displaced in the door closing direction. Also at this time, the holding arm 20 is displaced together with the landing door 12 while being guided by the guide rail 6.

  Thereafter, the engaging claw 26 is engaged with the door closing stopper 24, and the roller hanger 7 is displaced together with the landing door 12 in the door closing direction. Thereafter, the landing door 12 reaches the door closing position, the roller hanger 7 reaches the accommodation position, and the landing doorway 1 is closed (FIG. 1).

  When the car is moved from the floor after the landing doorway 1 is closed, each vane 16 is disengaged from the drive roller 17 and each latch 29 is engaged with the interlock 28. Thereby, the displacement to the door opening direction of each landing door 12 is prevented.

  In such an elevator hall door device, when the hall door 12 is in the door open position, the hall door 12 is supported by the portion of the roller hanger 7 protruding from the hanger case 2. 12 can be displaced from the hanger case 2 to the outside in the frontage direction. Thereby, the length dimension of the hanger case 2 can be reduced to the width dimension of the hall entrance 1 and the hanger case 2 can be easily transported and carried into the hoistway. Therefore, the trouble at the time of installation can be reduced and the installation of the landing door device can be facilitated.

  Further, the door hanger 14 is provided with a holding arm 20, and the holding arm 20 is engaged with the guide rail 6 and can be displaced along the guide rail 6, and the engagement roller 21 of the door hanger 14. 21 has the attachment part 22 attached to the part of the door opening side from 21 and the connecting part 23 for connecting the engagement roller 21 and the attachment part 22, the landing door 12 is displaced to the door opening position. Even if it is, the landing door 12 can be supported by the hanger case 2 via the holding arm 20, and the door opening side end portion of the landing door 12 can be prevented from tilting downward.

  Further, since the engagement roller 21 is rolled along the guide rail 6, the wear of the holding arm 20 and the guide rail 6 can be reduced, and the holding arm 20 with respect to the guide rail 6 can be reduced. Generation of noise due to displacement can also be prevented.

  Further, since the door hanger 14 is provided with a cover 30 that covers the roller hanger 7, when the roller hanger 7 is displaced to the protruding position, the portion of the roller hanger 7 that protrudes from the hanger case 2 can be covered by the cover 30. Further, it is possible to prevent foreign matters such as dust from adhering to the roller hanger 7.

Embodiment 2. FIG.
FIG. 10 is a front view of an essential part showing an elevator landing door device according to Embodiment 2 of the present invention. Moreover, FIG. 11 is a principal part front view which shows the landing door apparatus of an elevator when the landing doorway of FIG. 10 is open. 12 is a side view of a main part showing the landing door device for the elevator shown in FIG. 10, and FIG. 13 is a cross-sectional view of the main part taken along line XIII-XIII in FIG. In addition, FIG. 10 is a figure which shows the landing door apparatus of an elevator when the landing doorway is closed. In the figure, a pair of support rails 31 extending in the frontage direction of the landing doorway 1 are fixed to the long side part 3 b of the case fixing part 3. Each support rail 31 has a rail base portion 31a fixed to the case fixing portion 3, and a pair of rail facing portions 31b provided on the side edge portion of the rail base portion 31a and facing each other in the vertical direction. In addition, the length dimension of each support rail 31 is smaller than half of the width dimension of the hall entrance 1. Further, the hanger case 2 has a case fixing portion 3 and a support rail 31.

  An intermediate rail (displacement body) 32 that is displaceable in the length direction of the support rail 31 is supported on the support rail 31. The intermediate rail 32 is disposed between the rail facing portions 31b. Further, a pair of receiving portions 33 extending in parallel with the rail facing portions 31b are provided on the side edge portions of the intermediate rail 32. A plurality of bearing steel balls 34 are arranged between the rail facing portion 31 b and the receiving portion 33. Each steel ball 34 is rolled by the displacement of the intermediate rail 32 with respect to the support rail 31 (FIGS. 12 and 13).

  A door rail 35 that is displaceable with respect to the intermediate rail 32 in the length direction of the support rail 31 is fixed to each door fixing portion 18. The door rail 35 is disposed between the receiving portions 33. A plurality of steel balls 36 for bearings are arranged between the receiving portion 33 and the door rail 35. Each steel ball 36 is rolled by the displacement of the door rail 35 relative to the intermediate rail 32 (FIGS. 12 and 13).

  Each intermediate rail 32 is displaced to a projecting position projecting in the door opening direction from the hanger case 2 due to the displacement of each landing door 12 to the door opening position, and the projecting position due to the displacement of each landing door 12 to the door closing position. It is displaced to the accommodation position located closer to the door. The length dimensions of the intermediate rail 32 and the door rail 35 are substantially the same as the length dimension of the support rail 31. Further, the door hanger 14 has a door fixing portion 18 and a door rail 35.

  When each intermediate rail 32 is in the storage position, the landing door 12 is supported by the entire intermediate rail 32 (FIG. 10). When each intermediate rail 32 is in the protruding position, the landing door 12 is supported by the portion of each intermediate rail 32 protruding from the hanger case 2 (FIG. 11).

  Between each door hanger 14, a door interlocking mechanism 37 that interlocks each landing door 12 is provided. The door interlocking mechanism 37 is supported by the hanger case 2. The structure of the door interlocking mechanism 37 is a pantograph structure in which a plurality of link members 38 arranged crossing each other are connected to each other so as to be rotatable. The door interlocking mechanism 37 can expand and contract as a whole by the rotation of each ring member 38. Therefore, when one landing door 12 is displaced, the other landing door 12 is displaced in the opposite direction to the one landing door 12 by the same amount.

  Each door hanger 14 is provided with a door urging device 39 that urges the door hanger 14 in a direction in which the landing door 12 is displaced to the door closing position. The door urging device 39 is provided at a wire 40 connected to the central portion of the hanger case 2 and the door opening side end portion of the door hanger 14, and generates a urging force in the direction of winding the wire 40. 41. The urging device main body 41 is configured to generate an urging force in a direction in which the wire 40 is wound by a restoring force of a spring (elastic body). In this example, a spyrator (trade name) is provided on each door hanger 14 as a door urging device 39. Each landing door 12 is displaced in the door closing direction when the urging device main body 41 winds the wire 40. Further, each landing door 12 is displaced in the door opening direction by feeding the wire 40 from the biasing device main body 41 against the biasing force in the direction of winding the wire 40 of the biasing device main body 41.

  Further, each door hanger 14 is provided with a cover 42 that covers the support rail 31, the intermediate rail 32, the door rail 35, and the door interlocking mechanism 37. The length of the cover 42 is substantially the same as the length of the door hanger 14.

  Since each landing door 12 is interlocked by a door interlocking mechanism 37, the latch 29 is provided only on one door hanger 14, and the interlock 28 is engaged with one of the latches 29. Only the return portion 27 is provided. The drive roller 17 is provided only on one landing door 12, and the vane 16 is provided only on one car door. Other configurations are the same as those in the first embodiment.

  Next, the operation will be described. When the car is stopped on the floor, the car door is engaged with only one landing door 12 by the drive roller 17 and the vane 16. At this time, the engagement between the latch 29 and the interlock 28 is released by the lock release device.

  Thereafter, each car door is displaced in the door opening direction by the door driving device. Thereby, one landing door 12 engaged with the door of the car is displaced in the door opening direction against the urging of the door urging device 39. At this time, the door interlocking mechanism 37 extends left and right, and the other landing door 12 is similarly displaced in the door opening direction. Each intermediate rail 32 is also displaced in the door opening direction.

  Thereafter, each landing door 12 reaches the door opening position, and each intermediate rail 32 reaches the protruding position, whereby the landing doorway 1 is opened (FIG. 2).

  When the landing doorway 1 is closed, the landing doors 12 and the intermediate rails 32 are displaced in the door closing direction by an operation reverse to the above. Thereafter, each landing door 12 reaches the door closing position, and each intermediate rail 32 reaches the accommodation position. Thereby, the hall entrance 1 is closed (FIG. 1).

  When the car is moved from the floor after the landing doorway 1 is closed, the vane 16 is disengaged from the drive roller 17 and the latch 29 is engaged with the interlock 28. Thereby, the displacement to the door opening direction of each landing door 12 is prevented.

  Even in such an elevator landing door device, when the landing door 12 is in the door open position, the landing door 12 is supported by a portion of the intermediate rail 32 protruding from the hanger case 2. Therefore, the landing door 12 can be displaced to the outer side in the frontage direction than the hanger rail 2, and the length dimension of the hanger case 2 can be reduced.

  Further, since the door interlocking mechanism 37 having a pantograph structure for interlocking the landing doors 12 with each other is provided between the door hangers 14, the landing doors 12 can be interlocked with each other with a simple configuration.

It is a principal part front view which shows the landing door apparatus of the elevator by Embodiment 1 of this invention. It is a principal part front view which shows the landing door apparatus of an elevator when the landing doorway of FIG. 1 is open. It is a principal part side view which shows the landing door apparatus of the elevator of FIG. It is a front view which shows the hanger case of FIG. It is a side view which shows the hanger case of FIG. It is a front view which shows the roller hanger of FIG. It is a side view which shows the roller hanger of FIG. It is a front view which shows the door hanger of FIG. It is a side view which shows the door hanger of FIG. It is a principal part front view which shows the landing door apparatus of the elevator by Embodiment 2 of this invention. It is a principal part front view which shows the landing door apparatus of an elevator when the landing doorway of FIG. 10 is open. It is a principal part side view which shows the landing door apparatus of the elevator of FIG. It is principal part sectional drawing along the XIII-XIII line | wire of FIG.

Explanation of symbols

  1 landing doorway, 2 hanger case, 4 upper hanger rail (support rail), 5 lower hanger rail (support rail), 6 guide rail (arm guide), 7 roller hanger (displacement body), 13 landing door, 14 door hanger, 20 holding Arm, 21 engagement roller (engagement part), 22 attachment part, 23 connection part, 30, 42 cover, 31 support rail, 32 intermediate rail (displacement body), 37 door interlocking mechanism.

Claims (5)

A hanger case having a support rail extending in the entrance direction of the elevator entrance and exit, provided at the upper part of the entrance and exit,
A displacement body supported by the hanger case and displaceable along the support rail, a landing door that opens and closes the landing doorway, and an upper portion of the landing door, and in the direction along the support rail. A door hanger displaceable with respect to the displacement body, supported by the displacement body, the door of the landing is located at the door closing position where the landing doorway is closed, and is located on the outer side in the frontage direction than the door closing position, A landing door that can be displaced between a door opening position where the landing door opens the landing doorway,
The displacement body is displaced from the hanger case to a projecting position projecting in the door opening direction by the displacement of the landing door to the door opening position, and the projecting position is displaced by the displacement of the landing door to the door closing position. It is designed to be displaced to the storage position located closer to the door.
The landing door device for an elevator, wherein the landing door is supported by a portion protruding from the hanger case of the displacement body when the landing door is in the open position. The hanger case is provided with an arm guide portion parallel to the support rail,
The door hanger is provided with a holding arm that can be displaced integrally with the landing door,
The holding arm includes an engaging portion that is displaceable along the arm guide portion while being engaged with the arm guide portion, and an attaching portion that is attached to a portion of the door hanger that is closer to the door opening side than the engaging portion. The elevator landing door device according to claim 1, further comprising a connecting portion that connects the engaging portion and the attachment portion.   The elevator landing door device according to claim 2, wherein the engagement portion is an engagement roller that rolls along the arm guide portion. The support rail supports a pair of the displacement bodies,
Each of the displacement bodies supports the landing door,
The elevator landing door device according to any one of claims 1 to 3, wherein a door interlocking mechanism having a pantograph structure for interlocking the landing doors with each other is provided between the door hangers.   The elevator door device according to any one of claims 1 to 4, wherein the door hanger is provided with a cover that covers the displacement body.

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