JPWO2012008043A1 - Elevator door equipment - Google Patents

Abstract

Provided is an elevator door device capable of avoiding problems related to door running resistance without widening the gap between a sill and a car. The elevator door device (1) is slidably provided, and is provided at least one door panel (3a, 3b) for opening / closing the entrance (7) to / from the cab, and below the door panel, in the sliding direction of the door panel. Including an extending threshold (5). A guide groove (29) extending in the sliding direction is formed on the lower surface of the door panel. At least one guide member (27) protrudes upward on the upper surface of the sill. The guide members are inserted into the corresponding guide grooves, and when the door panel slides, the guide members relatively move along the corresponding guide grooves.

Description

  The present invention relates to an elevator door device.

  The door panel of the elevator door is suspended from a rail disposed above the elevator door panel. A leg portion is provided at the bottom of the door panel, and the leg portion is inserted into a groove on the upper surface of the sill disposed below the door panel. In this way, the door panel is supported at the top and bottom and guided in the opening and closing direction.

  However, because the area opened and closed by the door panel is the path of passenger movement, if there is a groove on the top of the sill, not only fine dirt such as dirt and dust will enter the groove and accumulate, but also compare pebbles etc. Large trash can get stuck in the groove. This may cause an opening / closing drive loss due to running resistance due to contact between the leg portion and the groove when the door panel is opened and closed, which causes a change over time of each portion. Further, when a relatively large garbage on the groove is stepped on by the passenger, the garbage may adhere to the groove.

  By the way, as a thing regarding such a problem, there exists what was described in the following literature, for example. First, in Patent Document 1, a gap is provided between the car and the sill of the platform, and the guide leg formed on the lower surface of the sill is formed by passing the door leg through the gap to the lower part of the sill. A configuration for engaging the leg is disclosed.

  In Patent Document 2, an engaging body is provided in the guide groove on the upper surface of the sill so as to be movable up and down, and when the door panel moves in the opening and closing direction, the lower end of the door panel moves while grasping the engaging body upward. Is disclosed. In such a configuration, the lower end portion of the door panel is supported via the engaging body, and the portion of the groove in the range where the door panel is not located upward during the opening / closing operation is closed by the engaging body, so that the foreign matter in the groove Is prevented.

  Further, Patent Document 3 provides a through gap that extends from the upper surface to the lower surface of the sill, extends the leg part of the door to the lower part of the sill through the gap, and the guide part formed on the lower surface of the sill, and the leg part. A configuration for engagement is disclosed.

  However, in the configuration disclosed in Patent Document 1 described above, since the leg portion of the door needs to pass through the gap between the car and the sill, a very large gap must be secured between the car and the sill. It causes new problems such as not becoming. Further, in the configuration disclosed in Patent Document 2, since the door panel moves while grabbing the engaging body, there is no need to cause a situation in which dust or the like is clogged in the guide groove. . Furthermore, in the site | part from which the upper surface height of an engaging body does not align with the upper surface height of a sill, a passenger can become a cause. Further, in the configuration disclosed in Patent Document 3, there is still a possibility that dust or the like is clogged in the through gap of the sill, and a fundamental solution to the foreign matter clogging problem described above cannot be expected.

Japanese Patent Laid-Open No. 60-80672 JP 2009-242039 A Japanese Patent Laid-Open No. 10-203764

  The present invention has been made in view of the above, and an object of the present invention is to provide an elevator door device capable of avoiding problems related to running resistance of a door without widening a gap between a threshold and a car. To do.

  In order to achieve the above-described object, an elevator door device according to the present invention is slidably provided, and is provided at least one door panel that opens and closes an entrance to a cab, and is provided below the door panel. A guide groove extending in the sliding direction is formed on the lower surface of the door panel, and at least one guide member protrudes upward on the upper surface of the threshold, The guide members are inserted into the corresponding guide grooves, and when the door panel slides, the guide members relatively move along the corresponding guide grooves.

  According to the elevator door device of the present invention, it is possible to avoid problems related to the running resistance of the door without widening the gap between the threshold and the car.

It is a figure which shows the front and side of the door apparatus of the elevator by embodiment of this invention. It is a figure which shows the fully closed state and fully open state of a door panel. It is a figure explaining balance of the main force which acts on one door panel. It is a figure which expands and shows the guide member vicinity. It is a figure explaining a structure and operation | movement of a panel support apparatus.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of an elevator door device according to the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  Drawing 1 is a figure showing the front and side of the door device of the elevator by an embodiment of the invention. FIG. 2 is a diagram illustrating a fully closed state and a fully opened state of the door panel. The elevator door device 1 includes at least one (a pair of left and right in the present embodiment) door panels 3 a and 3 b and a sill 5. The pair of left and right door panels 3a and 3b are slidably provided and open and close the entrance 7 to the cab. The sill 5 is provided below the door panels 3a and 3b and extends in the sliding direction of the door panels 3a and 3b.

  A suspension 9 is provided at the upper end of each of the door panels 3a and 3b. A girder 11 arranged in the longitudinal direction (horizontal direction) is provided at the upper edge of the entrance 7. A rail 13 is arranged in the longitudinal direction (horizontal direction) on the beam 11. Each hanger 9 is provided with a plurality of hanger rollers 15. As the hanger rollers 15 move along the rails 13, the horizontal movement of the hanger 9, that is, the opening and closing movements of the door panels 3a and 3b are guided.

  Furthermore, each of the suspension hands 9 is provided with a plurality of up thrust rollers 17. The plurality of up-thrust rollers 17 prevent the hanger rollers 15 from coming off the corresponding rails 13. The girder 11 is also provided with a pair of winding wheels 19a and 19b that are rotatable. The pair of winding wheels 19a and 19b are provided apart from each other, and a revolving member 21 which may be an endless belt or the like is wound around and stretched between them.

  The circling member 21 is provided with a pair of connectors 23a and 23b. The upper end of one connecting tool 23a is connected to a portion of the rotating member 21 that travels above, and the lower end is connected to one door panel 3a. The other connector 23b is connected to a portion of the rotating member 21 that travels below, and the lower end is connected to the other door panel 3b.

  When the circling member 21 is driven by the motor 25, the pair of connecting members 23a, 23b move in the opposite directions to each other, whereby the pair of left and right door panels 3a, 3b also move in the opposite directions, that is, getting on and off. An opening / closing operation is performed on the mouth 7.

  The door panels 3a, 3b are guided not only by the rails 13 on their upper side but also by the sill 5 on their lower side. On the upper surface of the sill 5, at least one guide member 27 (at least the same number as the door panel and a pair in this embodiment) is provided so as to protrude upward.

  On the other hand, a guide groove 29 for accommodating these guide members 27 is formed in the lower part of the door panels 3a and 3b. In this regard, first, the door panels 3a and 3b have guide groove extending members 33a and 33b on the rear end surfaces 31a and 31b in the door panel closing operation direction, respectively. The guide groove extending members 33a and 33b protrude rearward with respect to the closing operation direction of the door panel on the rear end surfaces 31a and 31b. And the guide groove 29 is comprised by the groove | channel formed in each lower surface of door panel 3a, 3b, and the groove | channel formed in the lower surface of the corresponding guide groove extension member 33a, 33b so that it may continue to the groove | channel. Has been. That is, most of the guide groove 29 is constituted by a groove on the lower surface of the door panel 3a, 3b, and a part thereof is constituted by a groove on the lower surface of the guide groove extending members 33a, 33b. In other words, the guide groove 29 is formed such that the groove on the lower surface of the door panel 3a, 3b is extended by the groove on the lower surface of the guide groove extending member 33a, 33b. The size of the guide groove extending members 33a and 33b may be such that the groove extending range in which the guide member 27 is accommodated can be added at a minimum even when the door panels 3a and 3b are fully closed.

  Each guide member 27 is accommodated in a corresponding guide groove 29. When the door panels 3a and 3b are opened and closed, the guide member 27 is seen from the relative relationship between the guide member 27 and the guide groove 29. A state of moving along

  As can be seen from FIG. 2, each of the guide members 27 is a portion provided with a guide groove 29 on the upper surface of the sill 5 from when the corresponding door panels 3 a and 3 b are fully closed to fully opened (in this embodiment, the door panel or guide groove). It is provided at a position covered with the extension member. In addition, each of the guide members 27 is provided on the upper surface of the sill 5 on the outside of the entrance 7, i.e., outside the passenger's passage. In other words, each of the guide members 27 is provided in the door pocket region 35 as shown by hatching in FIG. 2, and in particular, disposed at the end of the door pocket region 35 on the entrance / exit side. . Further, in order to realize such an arrangement of the guide member 27, the guide groove extending members 33a and 33b can be moved in and out of the door pocket region 35 so as not to come out of the door bag region 35 even when the door panels 3a and 3b are fully closed. It is provided so as to be positioned at the mouth side end.

  With such a configuration, the door panels 3a and 3b are supported and guided by the guide member 27 on the lower side. For this reason, the upper surface of the entrance / exit part of the sill 5 does not have a groove for supporting and guiding the door panels 3a and 3b.

  Next, the significance of the door panel receiving support at its lower end will be described. For example, in a conventional door device, a groove is provided on the upper surface of the sill, and a leg portion extending downward from the lower surface of the door panel is inserted into the groove and is in contact with the inner surface of the groove. The functions that this contact means are the guidance of the lower edge of the door panel with respect to the horizontal movement of the door panel, the suppression of the inclination of the door panel with respect to the passenger entry / exit direction, and the release of the door panel when an impact is applied in the passenger entry / exit direction when fully closed There are three preventions.

  Theoretically clarifying the force acting on the door panel when opening and closing the door panel reveals the structure required to realize the above-mentioned functions. When a driving force is generated in the motor 25 and the door panels 3a and 3b are opened and closed, the balance of the main forces acting on one door panel is the X-axis direction, Y-axis direction, and Z-axis direction as shown in FIG. It can be described individually by the rotation angle θ direction on the XY plane and the rotation angle ω direction on the ZY plane.

ただし、ｉ＝ｘ，ｙ，ｚとしたとの、各記号の意味は次のとおりである。
ｉ：ドアパネル重心Ｇのｉ軸方向位置
θ：ドアパネル重心Ｇ周りのｚ軸回転角度
ω：ドアパネル重心Ｇ周りのｘ軸回転角度
Ｍ：ハンガーローラや吊手を含めたドアパネル一枚の総重量
Ｊｉｙ：ドアパネルの重心Ｇ周りにおけるｉ軸慣性イナーシャ
Ｆｍ：ドアモータの駆動により生じるベルト伝達駆動力
Ｆｕｉ：ドアパネルと案内器具の接触によるｉ軸方向の摩擦力
Ｆｈｉ：ハンガーローラ５とレール４の接触によるｉ軸方向摩擦力
ｄｉ：ハンガーローラ５とドアパネル重心Ｇのｉ軸方向距離
Ｌ₁：連結部９とレール４の垂直方向距離
Ｌ₂：レール４とドアパネル重心Ｇの垂直方向距離
Ｌ₃：案内器具１２とドアパネル重心Ｇの垂直方向距離
Ｋ：ハンガーローラの等価回転ばね剛性
ｇ：重力加速度That is, the following equations of motion (1) to (5) are shown in the order of each direction.

However, the meaning of each symbol that i = x, y, z is as follows.
i: i-axis direction position θ of the door panel center of gravity G: z-axis rotation angle around the door panel center of gravity G ω: x-axis rotation angle around the door panel center of gravity G M: total weight of one door panel including a hanger roller and a suspension hand I-axis inertial inertia Fm around the center of gravity G of the door panel: belt transmission driving force Fui generated by driving the door motor Fui: friction force in the i-axis direction due to contact between the door panel and the guide device Fhi: i-axis direction due to contact between the hanger roller 5 and the rail 4 Frictional force di: i-axis direction distance L ₁ between hanger roller 5 and door panel gravity center G ₁ : vertical distance L ₂ between connecting portion 9 and rail 4: vertical distance L ₃ between rail 4 and door panel gravity center G ₃ : guide device 12 and door panel Vertical distance K of center of gravity G: Equivalent rotation spring stiffness of hanger roller g: Gravity acceleration

となる。この状態を言い換えると、Ｙ軸方向については、ドアパネル重量をハンガーローラ１５とレール１３との接触部で支えている状態であり、Ｚ軸方向については、前述の接触部に作用する力Ｆｈｚと、ドアパネル３ａの下端部に作用する力Ｆｕｚとが釣り合うことで静止している状態を意味する。また、式（５）より、回転角ω方向ではハンガーローラ１５とドアパネル重心Ｇとの間で、ｚ軸方向に距離ｄｚのずれがあるとき、ドアパネルの総重量と前記距離ｄｚにより生じるモーメントに抗じる力として、ドアパネル下端部においてＺ軸方向に抗力Ｆｕｚを作用させることができればよいことになる。When the door panel 3a is opened and closed, the belt transmission force Fm generated by the driving force of the motor 25 acts only in the X-axis direction of Expression (1) and the rotation angle θ direction of Expression (4). The dynamic force generated at the time of normal opening and closing is only the belt transmission force Fm, and otherwise, a static force that does not change with the lapse of time acts. Therefore, the acceleration in each axial direction does not change, that is,

It becomes. In other words, in the Y-axis direction, the door panel weight is supported by the contact portion between the hanger roller 15 and the rail 13, and in the Z-axis direction, the force Fhz acting on the contact portion described above, It means a state where the power Fuz acting on the lower end of the door panel 3a balances with the stationary state. Further, according to Equation (5), when there is a deviation of the distance dz in the z-axis direction between the hanger roller 15 and the door panel center of gravity G in the rotation angle ω direction, it resists the total weight of the door panel and the moment generated by the distance dz. As a twisting force, it is sufficient that the drag Fuz can be applied in the Z-axis direction at the lower end of the door panel.

  As long as at least one guide member 27 is installed at the lower end of one door panel, the above-described force Fuz in the z-axis direction can be generated. If the door panel is adjusted and attached so that the distance dz becomes zero, that is, if the position of the hanger roller 15 and the center of gravity G of the door panel coincide with each other, the Z-axis direction applied to the lower end portion will be described. The force Fuz is not necessary.

  Further, in the X-axis direction and the rotation angle θ direction, the frictional force in the X-axis direction by the guide member 27 acts, but even if a plurality of guide members 27 are installed, the frictional force Fux in the equations (1) and (4). This is equivalent to changing the size of the term. That is, the influence of having one guide member 27 is replaced with a simple frictional problem.

  Based on the knowledge obtained from the equation of motion acting at the time of opening and closing the door described above, without providing a groove on the upper surface of the sill as in the past, from the viewpoint of the structure that satisfies the above three functions, The configuration will be further described.

  The door panel 3a, 3b is guided to open and close by the hanger roller 15 along the rail 13 on the upper end side of the door panel 3a, 3b, and on the lower end side, the guide member 27 is guided in the guide groove of the door panel 3a, 3b. This is performed by contacting with 29. Here, when the distance between the contact portion of the rail 13 and the hanger roller 15 (supporting the total weight of the door panel) and the center of gravity G of the door panels 3a, 3b is large in the passenger getting-on / off direction, the door panels 3a, 3b have the passenger getting-on / off direction. A tilting force will be applied. In other words, if the distance can be adjusted to be zero, the door panels 3a and 3b can be opened and closed without inclining in the passenger boarding direction even if there is no guidance on the lower end side as long as there is guidance on the upper end side. be able to. Therefore, the hanger roller 15 may be adjusted and hung on the rail 13 so that the distance becomes zero, and the inclination of the door panels 3a and 3b in the passenger boarding / alighting direction can be prevented.

  The up thrust roller 17 does not cause a contact point shift between the hanger roller 15 and the rail 13 caused by an external force applied in the passenger getting-on / off direction or the opening / closing direction at the time of normal opening / closing or full opening / closing, that is, the door panel does not come off. Is provided below the rail 13. However, if the up-thrust roller 17 and the rail 13 are always in contact with each other, the running resistance loss when the door panel is opened and closed increases, so that it is desirable to adjust so that it is not pressed against the rail 13 during normal opening and closing. In addition, as a mechanical measure for preventing door detachment, if a plate (not shown) is fixed to the suspension 9 in such a manner as to cover the upper side or the lower side of the rail 13, if the door panel tilts beyond a certain level, Disengagement can be prevented by contact between the plate and the rail. Such a plate can be provided at a position where the hanger roller 15 of the suspender 9 is avoided, and it is preferable to provide the plate so as not to come into contact with the rail at normal times.

  The sill 5 is characterized in that it does not have a groove for supporting the door panel so that foreign matters such as dust and dirt do not enter in an area where passengers pass. The passenger boarding / alighting area on the sill 5 is most preferably a flat shape from the viewpoint of preventing foreign matters from being mixed and improving trafficability. However, even if it has a convex shape, the effect of preventing foreign matters from being mixed is ensured. However, in the case of convex shape, the height of the convex part should be as low as possible so that passengers do not go when passing, and it should be a smooth curved surface so that the height between the sill and the floor surface does not change suddenly Is preferred.

  If the door panels 3a and 3b are suspended from the rail 13 so that the contact portion between the rail 13 and the hanger roller 15 and the center of gravity G of the door panel coincide with each other in the passenger boarding / exiting direction, the guide member 27 guides as shown in FIG. A state in which the groove 29 is not in contact with the groove 29 can be constantly obtained. On the other hand, when a force in the passenger getting-on / off direction acts on the door panels 3a, 3b, the guide groove 29 and the guide member 27 come into contact with each other, thereby ensuring the function of guiding the door panels 3a, 3b in the horizontal direction. However, excessive inclination of the door panels 3a, 3b in the passenger boarding / alighting direction can be suppressed. Note that the present invention includes a mode in which the door panels 3a and 3b are suspended in a mode in which the guide groove 29 and the guide member 27 are in contact with each other from the beginning.

  It is preferable that at least the upper end of the guide member 27 is made of resin or brush. As an example, in the present embodiment, the guide member 27 includes a metal portion 27a attached to the upper surface of the sill 5 and a resin portion such as rubber that is in contact with a side surface that is provided at the upper end portion of the metal portion 27a and that defines the guide groove 29. 27b. Moreover, the guidance member 27 can implement | achieve the guidance function of the opening / closing direction of the door panels 3a and 3b by installing one or more per door panel.

  The elevator door device 1 further includes a panel support device. This will be described with reference to FIG. FIG. 5 is a diagram showing the configuration and operation related to the two types of panel support devices 135 and 235 as an example.

  First, the outline will be described. The panel support devices 135 and 235 support one or more door panels when fully closed against the force in the passenger getting-on / off direction. When one or more door panels are fully closed, By connecting the two door panels to the facing body (connecting the pair of door panels to each other), it is possible to increase the rigidity against an impact applied in the passenger getting-on / off direction. The panel support devices 135 and 235 include support members 137 and 237 located at the support position when fully closed. In the support position, the support members 137 and 237 overlap with both the front end lower part in the door panel closing operation direction and the facing body abutted against the front end lower part as viewed from the passenger boarding / exiting direction. The panel support devices 135 and 235 include drive mechanisms 139 and 239 that drive the support members 137 and 237 between a support position and a non-support position. The drive mechanisms 139 and 239 include at least a pair of magnets that are provided so as to be distributed between the door panel and its facing body, and the support members 137 and 237 are driven by the magnetic force of these magnets.

  Specifically, the suction-type panel support device 135 on the left side of FIG. 5 will be described. The panel support device 135 includes a support material 137 and a drive mechanism 139. The drive mechanism 139 includes at least a pair of magnets 141 and 143 having different polarities and a spring 145. The magnet 141 that is one of the N magnetic pole and the S magnetic pole is fixed to the lower part of the front end in the closing operation direction of the one door panel 3a. A magnet 143, which is the other of the N magnetic pole and the S magnetic pole, is movably attached via a spring 145 to the lower portion of the front end in the closing operation direction of the door panel 3 b that is a facing body with respect to the door panel 3 a. A pair of upper and lower support members 137 are provided, and the pair of support members 137 are attached to the upper and lower portions of the magnet 143. The spring 145 is provided between the pair of support members 137 and urges the magnet 143 and the pair of support members 137 in a direction away from the one door panel 3a.

  In such a configuration, when the door panels 3a and 3b are in a state other than the fully closed state, the support member 137 is in the non-support position, that is, does not protrude from the door panel 3b when viewed from the passenger boarding / exiting direction due to the elastic force of the spring 145. In position. On the other hand, when the door panels 3a and 3b are fully closed, the magnet 143 approaches the magnet 141 against the spring 145 by the attractive magnetic force generated between the magnets 141 and 143. As a result, the support member 137 moves toward the door panel 3a, that is, assumes a support position. In the support position, the support material 137 overlaps both the door panels 3a and 3b when viewed from the passenger boarding / exiting direction. More specifically, the support material 137 passes through a through hole provided in the end surface of the door panel 3b, and the opposite door panel. Plugged into 3a. As a result, the door panels 3a and 3b are connected to each other by the support member 137, so that the rigidity against the impact force in the passenger boarding / exiting direction is improved.

  Furthermore, as another aspect, a repulsive panel support device 235 on the right side of FIG. 5 will be described. The panel support device 235 includes a support material 237 and a drive mechanism 239. The drive mechanism 239 includes at least a pair of magnets 241 and 243 having the same polarity. The magnet 241 that is one of the N magnetic pole and the S magnetic pole is fixed to the lower portion of the front end of the one door panel 3a in the closing operation direction. A magnet 243 having the same polarity as that of the magnet 241 is movably attached to the lower portion of the front end in the closing operation direction of the door panel 3b which is a facing body with respect to the door panel 3a. The magnet 243 is fixed to the lower end of a support member 237 that is rotatably attached to the door panel 3b.

  In such a configuration, when the door panels 3a and 3b are in a state other than the fully closed state, the support member 237 is in the non-support position, that is, extends in the vertical direction as viewed from the passenger boarding / exiting direction due to the weight of the magnet 243, and from the door panel 3b. Take a posture that does not protrude. On the other hand, when the door panels 3a and 3b are fully closed, the lower ends of the magnet 243 and the support member 237 move away from the door panel 3a by the repulsive magnetic force generated between the magnets 241 and 243. Further, the movement of the lower end of the support member 237 means rotation of the support member 237, and the upper end of the support member 237 is inserted into the opposite door panel 3a through a through hole provided in the end surface of the door panel 3b. The support material 237 takes a support position. As a result, the door panels 3a and 3b are connected to each other by the support member 237, so that the rigidity against the impact force in the passenger getting-on / off direction is improved.

  Further, when the door panels 3a and 3b start to open from the fully closed state, the repulsive force between the magnets 241 and 243 decreases, and the support member 237 receives the action of the weight of the magnet 243 and returns to the original non-support position. And rotate back. At this time, it is preferable to provide a stopper 247 at an appropriate position of the door panel 3b in order to stop the movement of the magnet 243 due to its own weight and to reduce an impact at the time of stationary. The stopper 247 can be made of an elastic member such as an impact absorbing material or a spring.

  According to the elevator door device according to the present embodiment as described above, the following effects can be obtained. The guide groove that guides the door panel is not a sill, but is provided on the lower surface of the door panel and opens downward in the direction of gravity, so it is difficult for dirt to accumulate in the groove due to the action of its own weight, and the door running resistance increases due to dust accumulation. Can be suppressed. Further, since it is the guide member that protrudes from the upper surface of the sill that is engaged with the guide groove, it is not necessary to insert a member that guides the door panel into the gap between the sill and the carriage. Therefore, according to the present embodiment, it is possible to avoid problems related to the running resistance of the door without widening the gap between the threshold and the car.

  In addition, since the guide member is provided on the upper surface of the sill at a position covered with the guide groove provided from the time when the door panel is fully closed to the time when the door panel is fully opened, the downward opening groove is formed to suppress the accumulation of dust as described above. Even if it is adopted, door guidance can be performed while avoiding passengers' whispering more reliably. In addition, in this embodiment, there is a threshold that opens in a direction opposite to the direction of gravity in relation to the possibility that not only foreign substances in natural phenomena are mixed, but also relatively large foreign objects such as pebbles can be pushed into the groove when passengers pass. By eliminating the groove on the upper surface itself, it is possible to eliminate the phenomenon of foreign matter mixing into the threshold. Furthermore, since the guide member is provided in the outer part of the entrance / exit on the upper surface of the sill, the entrance / exit can be made larger.

  Further, the door panel has a guide groove extending member on the rear end surface of the door panel in the closing operation direction, and the guide groove extending member protrudes rearward in the closing operation direction on the rear end surface, and on the lower surface of the guide groove extending member. Is provided with a groove that constitutes a part of the guide groove, so that when the guide groove extending the necessary length is secured, the above-mentioned effect is achieved while making it easy to utilize the existing door panel and suppressing the weight increase of the door panel. Can be obtained.

  In addition, since at least the upper end of the guide member is made of resin or brush, it can have two effects at the same time: a dust removal promoting effect and a noise reducing effect when the door panel is opened and closed. That is, even if foreign matter is mixed in the guide groove, the dust is pushed out by collision with the guide member, and the discharge action to the outside of the groove due to gravity can be obtained. . In addition, when the guide member relatively moves in the guide groove as the door panel opens and closes, the guide member directly touches the guide member directly, as well as the noise that may be generated when the guide member sweeps out the dust as described above. Noise that may occur due to contact with the inner surface of the guide groove can also be reduced.

  Further, in the present embodiment, since the panel support device is provided, it is outside the area where passengers pass when getting on and off from the aim of suppressing increase in door running resistance due to dust accumulation and more reliably avoiding passenger whispering. While adopting a configuration in which a guide member is provided, support in the passenger boarding / alighting direction is obtained at the lower front end of the door panel far from the guide member. Therefore, the strength in the passenger boarding / alighting direction with respect to the fully closed door panel can be maintained high while obtaining the effects of both the increase in running resistance and the avoidance of whirling. Moreover, since the support material of a panel support apparatus is driven by the magnetic force of a magnet, the support state of the passenger boarding / alighting direction regarding a fully closed door panel can be made to appear automatically using the opening / closing operation | movement of a door panel.

  Further, if the contact portions of the plurality of hanger rollers and rails and the center of gravity of the door panel are matched with each other in the passenger getting-on / off direction, in a steady state, a non-contact state between the guide member and the guide groove can be ensured, The running resistance can be further lowered when the door panel is opened and closed.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  For example, in the above-described embodiment, the guide groove is extended by adding a guide groove extending member to the door panel. However, the present invention is not limited to this aspect, and the lateral width of the entire door panel is increased or the door panel is extended. The width may be made longer only from the beginning as necessary.

  Although the aspect which comprised the drive mechanism of the panel support apparatus with the magnet was illustrated, as a magnet, not only a permanent magnet but an electromagnet can also be used. Furthermore, the drive mechanism is not limited to a mode using magnetic force, and may be configured by a means other than a magnet as long as it is a means for generating a force for pulling or pushing away.

  In the embodiment described above, a configuration including a pair of left and right door panels is illustrated, but the elevator door device according to the present invention is not limited to this, and an aspect in which the entrance / exit is opened and closed by one or more door panels. If it is. Therefore, in the configuration having a pair of left and right door panels, the facing body with respect to the door panel means the other door panel with respect to one door panel, and in the configuration in which the entrance / exit is opened and closed by one door panel, one side portion of the entrance / exit It may mean an immovable column or wall that delimits. Further, the mode of one door panel may be a normal door panel having a constant panel area, or a telescopic door panel in which the panel area changes in the opening and closing process.

  DESCRIPTION OF SYMBOLS 1 Elevator door apparatus, 3a, 3b door panel, 5 threshold, 7 boarding gate, 13 rail, 15 hanger roller, 27 guide member, 29 guide groove, 31a, 31b rear end surface, 33a, 33b guide groove extension member, 135, 235 Panel support device, 137, 237 Support material, 139, 239 Drive mechanism, 141, 143 magnet, 241, 243 magnet.

Claims (8)

Including at least one door panel slidably provided to open and close the entrance to the cab, and a sill provided below the door panel and extending in a sliding direction of the door panel,
An elevator door device,
A guide groove extending in the sliding direction is formed on the lower surface of the door panel,
At least one guide member protrudes upward on the upper surface of the sill,
The guide member is inserted into the corresponding guide groove, and when the door panel slides, the guide member relatively moves when the door panel slides.   2. The elevator door device according to claim 1, wherein the guide member is provided on a top surface of the sill at a position covered with a portion provided with the guide groove from a fully closed state to a fully opened state of the door panel.   3. The elevator door device according to claim 1, wherein the guide member is provided on an outer surface of the entrance on the upper surface of the sill. The door panel has a guide groove extending member on the rear end surface in the closing operation direction of the door panel,
The guide groove extending member protrudes rearward in the closing operation direction on the rear end surface,
The elevator door device according to any one of claims 1 to 3, wherein a groove constituting a part of the guide groove is provided on a lower surface of the guide groove extending member.   The elevator door device according to any one of claims 1 to 4, wherein at least an upper end of the guide member is made of a resin or a brush. Further comprising a panel support device for supporting the door panel when fully closed against the force in the passenger getting on and off direction;
The panel support device includes a support material located at a support position when fully closed,
The support material overlaps both the front end lower part in the closing operation direction of the door panel and the facing body abutted against the front end lower part when viewed from the passenger boarding / alighting direction at the support position. The elevator door device according to any one of 5. The panel support device includes a drive mechanism for driving the support material between the support position and the non-support position,
The drive mechanism includes at least a pair of magnets provided to be distributed between the door panel and the facing body,
The elevator door device according to claim 6, wherein the support member is driven by the magnetic force of the magnet. Above the door panel, a plurality of hanger rollers for supporting the door panel is provided.
The plurality of hanger rollers are guided by rails extending in a sliding direction of the door panel,
The elevator door device according to any one of claims 1 to 7, wherein a contact portion between the plurality of hanger rollers and the rail and a center of gravity of the door panel coincide with each other in a passenger getting-in / out direction.

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