JP2008156058A - Door pulling-in detecting device of elevator and its assembling method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door pulling-in detecting device reducing assembling manhours at a job site when installing the door pulling-in detecting device. <P>SOLUTION: A corner guard 22 displaceable in the door opening-closing direction and a limit switch 26 detecting pulling-in of foreign matter to a door pocket in response to displacement of the corner guard 22, are arranged on a baseplate 21, to be formed as a foreign matter detecting unit 20. An installation slot 6 is opened and formed in the vertical direction in a corner edge part approaching a sliding door on the door closing directional side among a vertical frame 2 constituting the doorway 1. After inserting the detecting unit 20 into the installation slot by blocking up an opening part on the side in the door closing direction of this installation slot 6 by the corner guard 22, the foreign matter detecting unit 20 is detachably installed in the vertical frame 2 with the baseplate 21 as an installation part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  In the present invention, a foreign object is drawn between a sliding door that is driven by a door opening and closing device to open and close the doorway in the left-right direction and a wall that is in a superposed relationship with the sliding door and moves relative to the sliding door when the door is opened. The present invention relates to an elevator door pull-in detection device for detecting this and an assembly method thereof.

  The sliding door that opens and closes the elevator door is driven by a door drive device to open and close the door, but when a foreign object such as a passenger's clothes or fingers is pulled into the door pocket during the door opening operation, the sliding door is not pulled in. Various door pull-in detection devices have been proposed to detect and at least slow down the sliding door to prevent further pulling in of foreign objects.

For example, as described in Patent Documents 1 and 2, a part of the vertical frame on the door pocket side of the gate-shaped frame forming the doorway provided in the car is configured to be displaceable in the door opening direction, and the displacement Some of them are provided with a detection switch for detecting the above. More specifically, the corner frame on the door closing direction side and close to the slide door in the vertical frame is configured to be displaceable in the door opening / closing direction, and the detection switch is provided inside the vertical frame, In the unlikely event that a foreign object is drawn, the detection switch detects that the corner edge has been pressed by the foreign object and displaced in the door opening direction.
Japanese Utility Model Publication No. 55-22066 International Publication No. 95/32145 Pamphlet

  In the techniques described in Patent Documents 1 and 2, since the mechanism and the detection switch for enabling the corner edge portion to be displaced in the door opening / closing direction are arranged inside the vertical frame, When installing the detection device with the door being pulled into the elevator, there is a problem that sufficient work space cannot be secured and workability is poor, and it is necessary to assemble individual parts to the vertical frame, which increases work man-hours. there were.

  The present invention has been made in view of the above problems, and in particular, an elevator that is improved in workability of assembly work when the door is pulled into an existing elevator and a detection device is installed, and the work man-hour is reduced. It is an object of the present invention to provide a door pull-in detection device and an assembly method thereof.

  According to the first aspect of the present invention, the front side wall surface of the slide door that is driven by the door opening / closing device to open and close the entrance / exit in the left-right direction and the slide door are overlapped with each other and move relative to the slide door when the door is opened. A corner guard that can be displaced in the door opening / closing direction is arranged along the vertical direction at the corner formed by the vertical wall on the door closing direction of the wall, and foreign objects are drawn between the sliding door and the wall. An elevator door pull-in detection device provided with a detecting means for detecting the corner guard according to the displacement of the corner guard, wherein the corner guard is guided and supported to be displaceable with respect to the base plate via the guide means, By attaching detection means that operates in accordance with the displacement of the corner guard to the base plate, One of the id means and the detection means is configured as a foreign matter detection unit having the base plate as a base, while the wall body is on the door closing direction side and along the vertical direction at the corner edge portion close to the slide door. An opening is formed in the mounting slot, the door closing direction side opening of the mounting slot is closed with a corner guard, and the foreign object detection unit is inserted into the mounting slot. It is characterized by being detachably attached to the wall body.

  Here, as the wall body, in addition to the vertical frame on the door pocket side of the gate-shaped frame body forming the entrance and exit, the high-speed slide door and the high-speed slide door in conjunction with the displacement of the high-speed slide door when opening and closing the entrance and exit For example, at the entrance of a two-piece single-open type or four-double-open type provided with a low-speed slide door that is displaced in the same direction as the high-speed slide door at low speed, the present invention is applied using the low-speed slide door as a wall body. It is also possible.

  In addition, for example, in order to form the mounting slot in the installation of the door retracted detection device of the present invention in an existing elevator, the existing wall body is directly processed on the site to form the mounting slot, Alternatively, a part of the wall body in which the mounting slot is to be formed is replaced with one in which the mounting slot is previously formed.

  Therefore, in at least the first aspect of the invention, the foreign object detection unit is inserted from the mounting slot so as to close it, and the base plate of the foreign object detection unit is used as a mounting portion to fix the foreign object detection unit with a screw or the like. Just by fixing to the body, the door is immediately pulled in and the original function as a detection device is exhibited.

  In addition, as described in claim 2, the corner guard, the guide means, and the detection means in the foreign object detection unit are arranged in advance on a base plate serving as a mother body with a relative positional relationship in a normal assembly state. Then, the adjustment work after the door is pulled in and the detector is assembled can be greatly simplified, or the adjustment work becomes unnecessary.

  Here, the regular assembly state refers to a state in which the foreign object detection unit, which is a main component of the detection device when the door is pulled in, is assembled to the elevator so as to function effectively.

  According to a third aspect of the present invention, the corner guard is connected to the base plate via a plurality of link members that function as guide means, and the link member functions as an operation member that operates the detection means. If it exists, it will become preferable on the reduction of a number of parts.

  In particular, the corner guard is connected to the base plate via a plurality of link members which are parallel to each other and have the same length, and each element of the corner guard, the base plate and each link member is provided. While a parallel link mechanism with a base plate as a fixed joint is constructed, when a foreign object is drawn between the slide door and the wall, the corner guard is pressed by the foreign object and slanted in the door opening direction. When the foreign object is pulled away from the corner guard that has been translated obliquely upward in the door opening direction, the corner guard moves in the door closing direction by its own weight. It translates diagonally downward and returns to the initial state.

  Further, as described in claim 5, when the corner guard is translated obliquely upward toward the door opening direction, a gap closing body for closing a gap generated below the corner guard is provided. The foreign matter is prevented from being caught in the gap, and the safety of the elevator is further improved.

  Further, as described in claim 6, if the foreign object detection unit has at least two detection means independent for each link member, the pull-in is monitored by a plurality of detection means. There is an advantage that the above-mentioned pull-in can be detected more reliably.

  Furthermore, as described in claim 7, the foreign object detection unit having the base plate as a base is set so that the dimension formed by the base plate and the outer surface of the corner guard is the maximum unit thickness dimension, and is contained within the maximum unit thickness dimension. If each link member and the detection means are arranged on the door, there is an advantage that the door can be pulled in and the space of the detection device can be saved.

  In addition, when the total height of the corner guard is set to be substantially equal to the total height of the entrance / exit, as described in claim 8, the door is pulled in and the detection device has a detection area over almost the entire height of the entrance / exit. As a result, the safety of the elevator is further improved.

  The invention according to claim 9 captures the technique according to claim 1 as a method of assembling a detection device by retracting the elevator door according to claim 1, wherein the corner guard, the guide means, and the detection are detected. Three of the means are pre-unitized as a foreign object detection unit using the base plate as a base, while being mounted along the vertical direction on the corner of the wall that is close to the door and close to the sliding door. The slot is formed with an opening, and the door closing direction side opening of the mounting slot is closed with a corner guard, and the foreign object detection unit is inserted into the mounting slot. It is characterized by being detachably fixed to the wall.

  In addition, as described in claim 10, the foreign object detection unit is disposed on a base plate that is a base in advance with a relative positional relationship in which the three of the corner guard, the guide means, and the detection means are in a properly assembled state. As described above, the adjustment work after the door is pulled in and the detector is assembled can be greatly simplified, or the adjustment work becomes unnecessary.

  According to the invention described in claims 1 and 9, in order to assemble the detection device that is pulled in by attaching the foreign object detection unit in which the corner guard, the guide means and the detection means are previously unitized to the wall body, Not only can the number of parts be reduced, but the work man-hours on site can be reduced, and workability can be improved.

  Further, according to the second and tenth aspects of the present invention, since the three of the corner guide, the guide means, and the detection means are arranged on the base plate in a relative positional relationship in which they are normally assembled in advance, the door is pulled in and detected. The adjustment work after the assembly of the apparatus is simplified, or the adjustment work becomes unnecessary, and the door is pulled in, and the number of assembling steps of the detection apparatus can be further reduced.

  FIG. 1 is a plan view schematically showing an elevator car side doorway as a more specific embodiment of the present invention.

  As shown in FIG. 1, the entrance / exit 1 provided in the car is an entrance / exit opening end surface which is a vertical wall surface on the door-closing direction side among the vertical frames 2 which are left and right walls facing each other with a predetermined interval in the left / right direction. It is formed between 2a, and is opened and closed by the two slide doors 3. The door opening / closing type is a so-called double-opening type. When the doorway 1 is fully closed, the front and rear surfaces of the left and right slide doors 3 are brought into contact with each other at a substantially central position of the doorway 1. As a result, the left and right sliding doors 3 are driven, and the doorway 1 is opened by sliding in the direction in which they are separated from each other. In other words, the left and right vertical frames 2 that are overlapped with the slide door 3 are displaced relative to the left and right slide doors 3 when the door is opened. Due to the opening / closing mechanism, the thickness of the slide door 3 is between the front side wall surface 3a of the left and right slide doors 3 and the sliding surface 2b of the left and right vertical frames 2 facing the front side wall surface 3a of the slide door 3. A predetermined gap G is provided in the direction.

  Therefore, for example, when each slide door 3 is opened with the passenger leaning against the front side wall surface 3 a of the slide door 3, foreign objects such as clothes and fingers of the passenger are dragged to the front side wall surface 3 a of the slide door 3. There is a risk of being drawn into the gap G. Therefore, a foreign object detection unit 20 is provided along the vertical direction at a corner portion A formed by the front side wall surface 3a of the slide door 3 and the entrance / exit opening end surface 2a of the vertical frame 2 for the purpose of detecting this pull-in.

  FIG. 2 is a front view showing an outline of the foreign object detection unit 20 in FIG.

  As shown in FIG. 2, the foreign object detection unit 20 is configured by using a rectangular flat base plate 21 parallel to the front side wall surface 3 a of the slide door 3 as a base, and a corner guard 22 that can be displaced in the door opening / closing direction is a base plate 21. Is arranged along the vertical direction on the mounting surface 21a on the slide door 3 side, and the corner guard 22 substantially forms a corner edge formed by the entrance / exit opening end surface 2a of the vertical frame 2 and the sliding surface 2b. (See FIG. 1). The corner guard 22 has a substantially U-shaped cross section that opens in the door opening direction (see FIG. 5), and the total height of the corner guard 22 is set to be substantially equal to the total height of the doorway 1.

  The corner guard 22 is connected to and supported by the base plate 21 via three link members, which are substantially U-shaped swinging arms 23. The swinging arms 23 are parallel to each other and have the same length. Is set to More specifically, one end of each swing arm 23 is connected to the corner guard 22 via the arm bracket 22c and the first connecting pin 24, and from the first connecting pin 24 toward the door opening direction. The intermediate portion of each swing arm 23 is connected and supported on the mounting surface 21a of the base plate 21 by a second connecting pin 25 so as to be rotatable or swingable at a position offset obliquely downward. That is, the corner guard 22, the swing arm 23, and the base plate 21 constitute a parallel link mechanism having the base plate 21 as a fixed node, and the corner guard 22 is guided by the swing arm 23 functioning as guide means. Displaceable in the door opening and closing direction.

  In addition, two independent limit switches 26 are arranged as opposed to the other ends of the lower two swing arms 23 except for the upper swing arm 23 among the three swing arms 23. These limit switches 26 are fixed to the base plate 21 so that the mounting position can be adjusted with a mounting screw and a long hole as is well known, and are pressed by the displacement of the corresponding swing arm 23. ing.

  Therefore, if a foreign object such as a finger is drawn into the gap G (see FIG. 1) during the door opening operation, the door closing direction end surface 22a of the corner guard 22 is pressed by the foreign object, and the corner guard 22 is moved together with the foreign object. It is drawn in the door opening direction. That is, each swing arm 23 rotates in the door opening direction with the second connecting pin 25 as a rotation center, while the corner guard 22 has its door closing direction side front end surface 22a and the entrance / exit opening end surface of the vertical frame 2. As shown by the imaginary line in FIG. 2, the parallel movement is performed obliquely upward from the normal stationary position where 2a is flush with the door opening direction.

  When the corner guard 22 is displaced in the door opening direction, each swing arm 23 rotates and the other end presses each limit switch 26, so that foreign matter is drawn into the gap G by the limit switch 26. Is detected, and the detection signal is output to the door opening / closing control device to perform a pulling-in prevention process such as stopping the door opening operation, thereby preventing further foreign objects from being drawn in. In other words, the other end portion of each swing arm 23 has a function as an operating means for operating each limit switch 26, and the limit switch 26 indicates that the foreign object has been drawn into the gap G and the displacement of the corner guard 22. Will be detected according to Each limit switch 26 is connected in parallel, and the above-described pull-in prevention process is executed on the condition that one of the limit switches 26 has been detected.

  Then, when the passenger pulls the foreign object away from the corner guard 22, the corner guard 22 translates obliquely downward toward the door closing direction by its own weight and returns to the normal stationary position.

  Here, when the corner guard 22 is displaced in the door opening direction, a gap generated below the corner guard 22 is closed by a substantially trapezoidal lower gap closing body 27a, and a gap above the corner guard 22 is substantially a base. It is blocked by a shaped upper gap block 27b. Both the gap closing bodies 27a and 27b are made of rubber and disposed on the mounting surface 21a of the base plate 21. When the corner guard 22 is in a normal stationary position, the lower gap closing body 27a is a U-shaped lower end portion of the corner guard 22. Stored in the space.

  The base plate 21 is formed of a metal plate such as stainless steel or a decorative steel plate, and the corner guard 22 is formed of the same metal plate or hard resin as described above. The direction-side front end surface 22a has the same finish as the entrance / exit opening end surface 2a of the vertical frame 2.

  FIG. 3 is a view showing a state in which the foreign object detection unit 20 is attached to the vertical frame 2, and is a front view of the entrance / exit 1 in FIG. 1 as seen from the landing side. 4 shows a door-drawn detection device having a foreign object detection unit 20 provided in the right vertical frame 2 in FIG. 3 as a main element. FIG. 4 (a) is an exploded view thereof, and FIG. (B) is FF sectional drawing in (a) of the figure. 5 is a cross-sectional view taken along the line BB in FIG.

  As shown in FIG. 3, the door retracted detection device is provided in the left and right vertical frames 2, but the door retracted detection devices provided in the left and right vertical frames 2 have substantially the same structure. As a representative example, a door pull-in detection device attached to the right side in FIG. 3 will be described below.

  As shown in FIGS. 4A and 4B, the vertical frame 2 includes a flat sleeve wall plate 4 parallel to the front side wall surface 3 a of the slide door 3, and a door closing direction side end of the sleeve wall plate 4. And an end panel 5 joined to each other.

  The end panel 5 has a substantially C-channel shape that opens toward the door opening direction, and the wall surface of the end panel 5 that faces the slide door 3 is stepped in the overlapping direction with the slide door 3. That is, the wall surface of the end panel 5 facing the slide door 3 is offset as the unit mounting flange 5a by the mounting slot opening width W1 in the direction away from the sliding door 3 with respect to the sliding surface 2a over almost the entire height. A mounting slot 6 is formed in the vertical direction on the side of the vertical frame 2 on the door closing direction and close to the slide door 3 along the vertical direction. The end panel 5 is reinforced by attaching a reinforcing plate 5b to the inner surface thereof.

  A foreign object detection unit 20 is inserted into the mounting slot 6 so that the opening is closed by a corner guard 22, and the foreign object detection unit 20 is detachably attached to the end panel 5 with the base plate 21 as an attachment part. .

  More specifically, as shown in FIGS. 4 and 5, the base plate 21 is overlapped on the side of the unit mounting flange 5a opposite to the sliding door 3, and the base plate 21 is fixed to the unit mounting flange 5a with the mounting screws 7. ing. A plurality of mounting screws 7 are provided along the vertical direction, and the head of the mounting screw 7 is always concealed by the corner guard 22, and the corner guard 22 is displaced from the normal stationary position in the door opening direction. Sometimes the head of the mounting screw 7 is exposed, and the mounting screw 7 can be removed and mounted (see FIGS. 6A and 6B).

  A plurality of angles 8 are fixed to the end panel 5 in the vertical direction via brackets 9, and each angle 8 has a guide flange 8 a parallel to the slide door 3. Thick guide pins 10 project from the respective guide flanges 8a toward the slide door 3 side. On the other hand, the base plate 21 is formed with slits 21b notched from the door opening direction side end portion in the door closing direction at positions corresponding to the respective guide pins 10, and the slide flange 3 side of each guide flange 8a. The base plate 21 is overlapped with each other, and each guide pin 10 is fitted in each slit 21b so that it cannot be detached in the overlapping direction. The upper gap closing body 27b is housed in an upper cover 5c having a U-shaped cross section that is formed above the mounting slot 6 in the end panel 5.

  Further, as is apparent from FIG. 5, the foreign object detection unit 20 is set so that the dimension formed by the base plate 21 and the side surface of the corner guard 22 on the slide door 3 side is the maximum unit thickness dimension W2, and is contained within the maximum unit thickness dimension W2. In addition, each component of the foreign matter detection unit 20, that is, the corner guard 22, the swing arm 23, the limit switch 26, and the lower gap closing body 27 a and the upper gap closing body 27 b are disposed on the base plate 21.

  6 is an enlarged view of a portion C in FIG. 3. FIG. 6A shows a state where the corner guard 22 is in the normal stationary position, and FIG. 6B shows the corner guard 22 from the normal stationary position. It is a figure which shows the state displaced to the opening direction.

  Here, as shown in FIGS. 6A and 6B, the door closing direction side stopper 28 and the corner that restrict the displacement of the corner guard 22 in the door closing direction in the vicinity of the swing arms 23. A door opening direction side stopper 29 for restricting the displacement of the guard 22 in the door opening direction is fixed to the base plate 21 so that the mounting position can be adjusted by screwing an appropriate bracket and the adjusting nut 28a or 29a. Further, as shown in FIG. 5, the arm bracket 22c can be mounted on the slide rail 22b fitted and fixed to the corner guard 22 within the U-shaped space of the corner guard 22 by using bolts 22d and nuts 22e. The mounting positions of the stoppers 28 and 29, the limit switch 26, and the swing arm 23 are adjusted in advance so that when the foreign object detection unit 20 is assembled to the vertical frame 2, a normal assembly state is obtained. . That is, the corner guard 22, the swing arm 23, and the limit switch 26 are arranged in advance on the base plate 21 serving as a mother body with a relative positional relationship in which the normal assembly state is established.

  FIGS. 7A and 7B are perspective views showing an assembly process of the door retracted detection device having the foreign object detection unit 20 as a main element, and FIG. 8 is an enlarged view of a portion D in FIG. FIG.

  The door retracted detection device configured as described above is assembled as follows.

  FIG. 7 (a) shows the foreign object detection unit 20 in which the three members of the corner guard 22, the swing arm 23, and the limit switch 26 are arranged on the base plate 21 in a relative positional relationship in which they are normally assembled as described above. Thus, the opening of the mounting slot 6 is inserted into the mounting slot 6 so as to be closed by the corner guard 22. At this time, the foreign object detection unit 20 is inserted into the mounting slot 6 so that the base plate 21 slides on the guide flange 8a of the angle 8, and each slit 21b is inserted into the corresponding guide pin 10 to thereby detect the foreign object detection unit. 20 is positioned in the vertical direction.

  After that, the entire foreign object detection unit 20 is pushed into the back side of the mounting slot 6, and then the foreign object detection unit 20 is inserted so that the base plate 21 is inserted into the back side of the unit mounting flange 5a as shown in FIG. Pull out the whole toward the door closing direction. In this state, as shown in FIG. 8, the corner guard 22 is temporarily displaced toward the door opening direction, and the base plate 21 is fixed to the unit mounting flange 5 a with the mounting screws 7. At this time, usually, each mounting screw 7 positions the foreign object detection unit 20 in the door opening / closing direction, and the door closing direction front end surface 22a of the corner guard 22 and the entrance / exit opening end surface 2a of the vertical frame 2 are flush with each other. However, due to dimensional errors and assembly errors of the foreign object detection unit 20 and the vertical frame 2, the door closing direction front end surface 22 a of the corner guard 22 and the entrance / exit opening end surface 2 a of the vertical frame 2 were not flush with each other. In this case, adjustment work such as fine adjustment of the position of the door closing direction stopper 28 is performed so that the door closing direction front end surface 22a of the corner guard 22 and the entrance / exit opening end surface 2a of the vertical frame 2 are flush with each other. And In addition, when removing the foreign material detection unit 20 from the vertical frame 2, it removes in the reverse procedure to the assembly process demonstrated above.

  Further, the vertical frame 2 is used in which a mounting slot 6 is formed in advance at the time of factory shipment. For example, when a door is pulled into an existing elevator by a repair work or the like and a detection function is added, the existing vertical frame is used. The above operation is performed after replacing the vertical frame 2 having the mounting slot 6.

  Therefore, according to the elevator door pull-in detection device configured as described above, the corner guard 22, the swing arm 23, and the limit switch 26, which are the main components of the door pull-in detection device, are based on the base plate 21. Since the foreign object detection unit 20 is unitized in advance, the number of parts is reduced, the door is pulled in, the work man-hours when assembling the detection device can be greatly reduced, and the workability is improved.

  Further, since the three of the corner guard 22, the swing arm 23, and the limit switch 26 are arranged in advance on the base plate 21 serving as a mother body with a relative positional relationship in which the regular assembly state is established, the foreign matter detection unit 20 is basically arranged. At the stage of assembling to the vertical frame 2, the door closing direction front end surface 22 a of the corner guard 22 and the entrance / exit opening end surface 2 a of the vertical frame 2 are flush with each other, and adjustment work after the assembly becomes unnecessary. Even when the door closing direction front end face 22a of the door 22 and the entrance / exit opening end face 2a of the vertical frame 2 are not flush with each other, the door closing direction stopper 28 can be finely adjusted as described above. Therefore, there is an advantage that the adjustment work after the assembly can be simplified, and the number of work steps can be further reduced when the door is pulled in and the detector is assembled.

  In addition, since the foreign object detection unit 20 is detachable from the vertical frame 2, it is possible to secure a sufficient work space by removing the foreign object detection unit 20 from the vertical frame 2 during maintenance work, thereby improving maintenance. I can plan.

  Furthermore, since the foreign object detection unit 20 is configured as a part of the vertical frame 2 and the gap closing bodies 27a and 27b are always concealed, the door is pulled in and the detection device does not impair harmony with the surrounding design. In addition to the advantages, when the corner guard 22 is displaced in the door opening direction, a gap generated below the corner guard 22 is closed by the lower gap closing body 27a, so that foreign matter is prevented from being caught in the gap. This has the advantage of improving the safety of the elevator.

  In the present embodiment, the entrance / exit 1 formed in a so-called double door type car has been described as an example. However, the present invention can be applied to any door opening / closing type as long as it is a so-called horizontal sliding door type. It is also possible to apply to the doorway. Furthermore, for example, a two-piece one-sided opening type provided with a high-speed sliding door and a low-speed sliding door that is displaced in the same direction as the high-speed sliding door at a lower speed than the high-speed sliding door in conjunction with the displacement of the high-speed sliding door when opening and closing the entrance At the entrance / exit, it is possible to apply the present invention using a low-speed sliding door as a wall.

  Further, in this embodiment, a parallel link mechanism in which the base plate 21 is a fixed node is configured with the corner guard 22, the base plate 21, and each swing arm 23 so that the corner guard 22 can be displaced in the door opening / closing direction. However, the mechanism that allows the corner guard 22 to be displaced in the door opening / closing direction is not limited to this mechanism. For example, the corner guard 22 is always urged by a spring in the door closing direction. The corner guard 22 may be displaced in the door opening direction against the urging force of the spring when the door is pressed in the door opening direction by a foreign object.

  FIGS. 9A and 9B show a modified example of the attachment structure of the foreign matter detection unit 20 as the second embodiment of the present invention. FIG. 9A is an exploded view of the detection device when the door is pulled in. FIG. 5B is a perspective view showing the assembled door retracted detection device. FIG. 10 is a cross-sectional view taken along line EE in FIG.

  The second embodiment shown in FIGS. 9 and 10 is different from the exit opening end face 40a of the existing vertical frame 40 when the door is pulled into an existing elevator for repair work or the like and a detection function is added. A mounting slot 6 is formed by cutting a corner edge formed with the surface 40b along the vertical direction at the site, and is formed in a flat plate shape parallel to the front side wall surface 3a of the sliding door 3 and with a guide pin 10 The foreign object detection unit 20 is attached to the vertical frame 40 which is a wall body via the intermediate plate 41. That is, the attachment slot 6 is formed between the intermediate plate 41 and the slide door 3. The vertical frame 40 is a flat sleeve wall plate 42 parallel to the front side wall surface 3a of the slide door 3, a C channel end panel 43 joined to the end of the sleeve wall plate 42 in the door closing direction, The end panel 43 is reinforced by attaching a reinforcing plate 43a to the inner surface thereof.

  The intermediate plate 41 is disposed inside the end panel 43, and has flange portions 41a bent toward the slide door 3 at the upper and lower ends thereof, and the upper and lower flange portions 41a are respectively disposed on the vertical frame 40. Both the flange portions 41 a are fixed to the vertical frame 40 after being superposed on the end surface and the lower end surface.

  When the foreign object detection unit 20 is attached to the vertical frame 40, the guide pin 10 and the slit 21b are inserted while the foreign object detection unit 20 is inserted from the opening of the attachment slot 4 so that the base plate 21 and the intermediate plate 41 are overlapped. And the foreign matter detection unit 20 is positioned in the vertical direction, and the entire foreign matter detection unit 20 is pushed into the back side of the mounting slot 6 as shown in FIG. In this state, the corner guard 22 is displaced toward the door opening direction, and the base plate 21 is fixed to the intermediate plate 41 with the mounting screws 7. Then, as in the first embodiment, by performing adjustment work as necessary, the door is pulled in and the detection device functions effectively.

  Therefore, according to the elevator door pull-in detection device in the second embodiment, the same effect as in the first embodiment can be obtained, and in particular, the function of detecting the door pull-in to the existing elevator by repair work etc. Is added, it is not necessary to carry the vertical frame 2 in which the mounting slots 6 are formed in advance to the work site and to replace the vertical frame. There is an advantage that it becomes easy.

The top view which shows the outline of the elevator side entrance / exit of an elevator as the 1st Embodiment of this invention. The front view which shows the foreign material detection unit in FIG. It is a figure which shows the state in which the foreign material detection unit was attached to the vertical frame, Comprising: The front view which looked at the entrance / exit in FIG. 1 from the landing side. The door drawing-in detection apparatus provided in the vertical frame on the right side in FIG. 3 is shown, wherein FIG. 5A is an exploded view thereof, and FIG. 5B is a cross-sectional view taken along line FF in FIG. BB sectional drawing in FIG. FIG. 4A is an enlarged view of a portion C in FIG. 3, in which FIG. 3A shows a state in which the corner guard is located at a normal stationary position, and FIG. FIG. The perspective view which shows the assembly process of a door drawing-in detection apparatus. The enlarged view of the D section in FIG.7 (b). The modification of the attachment structure of a foreign substance detection unit is shown as a 2nd embodiment of the present invention, the figure (a) is an exploded view of a detection device, and (b) is an assembled door drawing. FIG. EE sectional drawing in (b) of FIG.

Explanation of symbols

1 ... entrance / exit 2 ... vertical frame (wall)
DESCRIPTION OF SYMBOLS 3 ... Sliding door 6 ... Mounting slot 20 ... Foreign object detection unit 21 ... Base plate 22 ... Corner guard 23 ... Swing arm (guide means)
26. Limit switch (detection means)
27a ... lower gap closing body 40 ... vertical frame (wall)

Claims (10)

The front side wall surface of the sliding door that is driven by the door opening and closing device to open and close the doorway in the left-right direction and the sliding door in the overlapping direction with the sliding door and move relative to the sliding door when the door is opened A corner guard that can be displaced in the door opening / closing direction is arranged along the vertical direction at the corner formed by the vertical wall, and the foreign object is drawn between the sliding door and the wall according to the displacement of the corner guard. An elevator door pull-in detection device provided with detection means for detecting
The corner guard is guided and supported to be displaceable with respect to the base plate via the guide means, and the detection means that operates according to the displacement of the corner guard is also attached to the base plate. While the three are configured as a foreign object detection unit based on the base plate,
A mounting slot is formed along the vertical direction at the corner edge on the door closing direction side of the wall body and close to the sliding door,
The foreign object detection unit can be attached to and detached from the wall body with the base plate as an attachment part after the foreign object detection unit is inserted into the attachment slot so that the door closing direction side opening of the attachment slot is closed with a corner guard. A door pull-in detection device for an elevator characterized by being attached.   2. The elevator according to claim 1, wherein the foreign object detection unit is arranged in advance on a base plate serving as a mother body with a relative positional relationship in which a corner guard, a guide unit, and a detection unit are in a normally assembled state. Door pull-in detection device.   The corner guard is connected to a base plate via a plurality of link members that function as guide means, and the link member functions as an operation member that operates the detection means. The elevator door retracted detection device according to claim 2. The corner guard is connected to the base plate via a plurality of link members that are parallel to each other and have the same length, so that the corner guard, the base plate, and each element of each link member have the base plate as a fixed joint. That make up the mechanism,
When the foreign object is drawn in between the slide door and the wall body, the corner guard is pressed by the foreign object and is translated obliquely upward in the door opening direction. Item 4. The elevator door retracted detection device according to Item 3.   The elevator according to claim 4, further comprising a gap closing body that closes a gap generated below the corner guard when the corner guard is translated obliquely upward toward the door opening direction. Door pull-in detection device.   The elevator door pull-in detection device according to any one of claims 3 to 5, wherein the foreign object detection unit has at least two detection means independent for each link member.   In the foreign object detection unit having the base plate as a base, the dimension between the base plate and the outer surface of the corner guard is defined as the maximum unit thickness dimension, and each link member and detection means are arranged so as to be within the maximum unit thickness dimension. The elevator door pull-in detection device according to any one of claims 3 to 6.   The elevator door pull-in detection device according to any one of claims 1 to 7, wherein the height of the corner guard is set to be substantially equal to the total height of the doorway. A method for assembling an elevator door retracted detection device according to claim 1,
While the three parts of the corner guard, the guide means and the detection means are previously unitized as a foreign object detection unit based on the base plate,
A mounting slot is formed along the vertical direction at the corner edge on the door closing direction side of the wall body and close to the sliding door,
The foreign object detection unit can be attached to and detached from the wall body with the base plate as an attachment part after the foreign object detection unit is inserted into the attachment slot so that the door closing direction side opening of the attachment slot is closed with a corner guard. A method for assembling an elevator door retracted detection device, characterized by fixing.   The elevator according to claim 9, wherein the foreign object detection unit is arranged in advance on a base plate serving as a base body with a relative positional relationship in which a corner guard, a guide unit, and a detection unit are in a normally assembled state. Method of assembling the door pull-in detection device.

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