Elevator door device and elevator

Abstract

To provide an elevator door device and an elevator in which a cleaning tool can be appropriately installed according to the conditions of the elevator installation site. [Solution] The guide body 563 comprises a guide portion 563a inserted into a groove 581a of the threshold 581, a fixed portion 563b extending upward from the guide portion 563a and having a protrusion protruding laterally, which is fixed to the bottom of the door 56, and a notched recess defined between a vertical line passing through the tip edge of the protrusion of the fixed portion 563b and the side edge of the guide portion 563a, and the cleaning tool 570 comprises a cleaning portion 570a inserted into the groove 581a close to the guide portion 563a of the guide body 563, and a fixed portion 570b extending upward from the cleaning portion 570a and fixed to the protrusion of the fixed portion 563b of the guide body 563, and is provided so that its height position can be adjusted.

Description

[Technical Field]

[0001] The present invention relates to an elevator door device and an elevator. [Background technology]

[0002] The elevator car and the landings at each floor are each equipped with a door device. The car door device includes a car door, a door support structure, and a door opening / closing device. The landing door device includes a landing door and a door support structure. When the car stops at a floor, the door opening / closing device is activated and the car door opens. The car door and the landing door are operatively connected, and the landing door opens following the opening of the car door. After the car has been open for a predetermined time or when the door close button is pressed, the door opening / closing device operates in reverse, causing the car door to close, and the landing door to close following this.

[0003] The door support structure includes a threshold. The threshold, also known as a "sill," is provided along the lower edge of the car opening and the lower edge of the landing opening. The threshold is a structure that supports the lower part of the door while allowing the door to open and close. The threshold includes a groove along the lower edge of the opening. The door includes a guide shoe that protrudes downward from the lower end. The guide shoe is inserted into the groove in the threshold, thereby supporting the lower part of the door so that it does not move in the forward and backward directions.

[0004] Foreign objects such as dirt and gravel can get into and accumulate in the threshold groove, hindering the opening and closing of the door. For this reason, a door device is known that has a brush cleaning tool attached to the bottom of the door, which cleans the groove as the door moves (Patent Document 1). Note that cleaning refers to, for example, moving the foreign objects with the cleaning tool and dropping them into the elevator shaft through a hole formed in the bottom of the groove. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-062903 Summary of the Invention [Problem to be solved by the invention]

[0006] The depth of the groove may vary depending on the material of the threshold. Furthermore, the installation height of the door (i.e., the height position of the bottom of the door) may vary depending on the door installation adjustment. In these cases, the positional relationship between the bottom of the door and the bottom of the threshold groove may differ, and the cleaning tool may not be positioned at the appropriate height.

[0007] Therefore, the present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an elevator door device and an elevator in which cleaning tools can be appropriately installed according to the conditions of the elevator installation site. [Means for solving the problem]

[0008] The elevator door device according to the present invention comprises: An elevator door device comprising: a door that moves left and right to open and close an opening, the door having a guide body protruding from a lower end; a threshold that is disposed along the lower edge of the opening and has a groove into which the guide body is inserted; and a cleaning tool that protrudes from the lower end of the door and is inserted into the groove to clean the groove as the door moves, The guide body includes a guide portion inserted into the groove, a fixed portion extending upward from the guide portion and having a protrusion protruding laterally and fixed to the lower part of the door, and a recess defined between a vertical line passing through the tip edge of the protrusion of the fixed portion and the side edge of the guide portion, The cleaning tool includes a cleaning part that is inserted into the groove in the vicinity of the guide part of the guide body, and a fixing part that extends upward from the cleaning part and is fixed to a protruding piece of the fixing part of the guide body, The guide body is arranged so as to be contained within an area defined by a vertical line passing through the tip edge of the protrusion of the fixed portion of the guide body and a vertical line passing through the side edge of the guide portion of the guide body, Height position adjustable 、 The protrusion on the fixed part of the guide body has a through hole, and the fixed part of the cleaning tool has a long through hole in the vertical direction, and a fixing tool is inserted into the two through holes, and the protrusion on the fixed part of the guide body is fixed to the bottom of the door, and the fixed part of the cleaning tool is fixed to the protrusion on the fixed part of the guide body. An elevator door device.

[0009] As one aspect of the elevator door device according to the present invention, The guide body includes a base having one corner of the lower rectangular portion cut away so that a first protruding piece protrudes downward and a second protruding piece protrudes laterally, and a guide member attached to the first protruding piece, the guide member being the guide portion of the guide body, the base above the guide member being the fixed portion of the guide body, and the second protruding piece being the protruding piece of the fixed portion of the guide body. The above configuration can be adopted.

[0010] As one aspect of the elevator door device according to the present invention, The cleaning tool can be moved to a height position where the cleaning portion of the cleaning tool is within the projection area of ​​the guide portion of the guide body when viewed from the left and right. The above configuration can be adopted.

[0011] As one aspect of the elevator door device according to the present invention, The thickness of the cleaning part of the cleaning tool in the front-rear direction is smaller than the thickness of the guide part of the guide body in the front-rear direction. The above configuration can be adopted.

[0012] As one aspect of the elevator door device according to the present invention, The guide body is installed at two locations on the left and right sides of the bottom of the door. One guide body has a width in the left-right direction shorter than that of the other guide body and is provided with a cleaning tool; The other guide body does not have a cleaning tool. The above configuration can be adopted.

[0013] The elevator according to the present invention comprises: The door device is provided It's an elevator. [Effects of the Invention]

[0014] According to the present invention, the cleaning tool is provided with an adjustable height, and its height can be adjusted to match the relative positions of the lower part of the door and the bottom surface of the groove in the threshold. Therefore, according to the present invention, the cleaning tool can be appropriately installed according to the conditions of the elevator installation site.

[0015] Furthermore, according to the present invention, the cleaning portion of the cleaning tool is disposed adjacent to the guide portion of the guide body, and the fixing portion of the cleaning tool extends upward from the cleaning portion, so that the cleaning tool does not protrude significantly laterally beyond the side edge of the guide body, allowing for an overall compact design. [Brief explanation of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view of an elevator. [Figure 2] Fig. 2(a) is a front view of the car with the car door fully closed as seen from the landing side, and Fig. 2(b) is a front view of the car with the car door fully open. [Figure 3] FIG. 3 is a partial cross-sectional side view of the car door device and the landing door device. [Figure 4] Fig. 4(a) is a front view of the lower part of the car door, and Fig. 4(b) is a cross-sectional view taken along line AA in Fig. 4(a). [Figure 5] Fig. 5(a) is a front view of the periphery of the guide shoe on the door closing side of the car door. Fig. 5(b) is a cross-sectional view taken along line BB in Fig. 5(a). Fig. 5(c) is a front view of the periphery of the guide shoe on the door closing side of the car door with the cleaning tool removed. Fig. 5(d) is a cross-sectional view taken along line CC in Fig. 5(c). [Figure 6] Figure 6(a) is a front view of the guide shoe, and Figure 6(b) is a front view of the cleaning tool. [Figure 7] Figure 7(a) is a front view of the guide shoe and cleaning tool with the cleaning tool positioned lowered, Figure 7(b) is a side view of Figure 7(a), Figure 7(c) is a front view of the guide shoe and cleaning tool with the cleaning tool positioned higher, and Figure 7(d) is a side view of Figure 7(c). [Figure 8] Figure 8(a) is a front view of a guide shoe and a cleaning tool according to another embodiment with the cleaning tool positioned lowered, Figure 8(b) is a side view of Figure 8(a), Figure 8(c) is a front view of a guide shoe and a cleaning tool according to another embodiment with the cleaning tool positioned raised, and Figure 8(d) is a side view of Figure 8(c). DETAILED DESCRIPTION OF THE INVENTION

[0017] Hereinafter, an embodiment of an elevator equipped with a door device according to the present invention will be described.

[0018] As shown in Figure 1, elevator 1 includes hoistway 2 and car 5. Hoistway 2 extends vertically in a building with multiple floors. Car 5 moves up and down in hoistway 2 by being driven by a drive device, and stops at a designated floor by stopping the drive device.

[0019] The car 5 is equipped with a car door device 55. The car door device 55 is equipped with a car door 56, a door support structure 58, and a door opening and closing device 59. The car door 56 moves left and right (horizontally from left to right, the same applies hereinafter) to open and close an opening (car entrance / exit) on the front of the car 5 to allow passengers to get on and off. The car door 56 is available in both double-swing and single-swing types. The door support structure 58 is a structure that supports the car door 56 while enabling the car door 56 to open and close. The door opening and closing device 59 is a device for opening and closing the car door 56.

[0020] In contrast, the landing 30 on each floor includes a jamb 31 and a landing door device 35. The jamb 31 is formed on a wall surface, and the interior of the frame defines an opening of a size corresponding to the opening of the car 5. The landing door device 35 includes a landing door 36 and a door support structure 38. The landing door 36 moves left and right to open and close the opening (landing entrance / exit) in the jamb 31, allowing passengers to get on and off. The landing door 36 also comes in a double-swing type and a single-swing type corresponding to the car door 56. The landing door 36 is normally kept closed by an elastic force, opens against the elastic force following the opening operation of the car door 56 of the car 5 stopped at the floor, and closes by the elastic force accompanying the closing operation of the car door 56. The door support structure 38 is a structure that supports the landing door 36 while enabling the opening and closing operation of the landing door 36.

[0021] As shown in FIGS. 2 and 3 , the car door 56 includes a door panel 560, a door hanger 561, and a connector 575. The door panel 560 is arranged along a vertical plane and is the main body of the car door 56 that opens and closes the opening 5a of the car 5. The door panel 560 is connected to the lower end of the door hanger 561, is integrated with the door hanger 561, and is supported by being suspended from the door hanger 561. The door hanger 561 includes a pair of rollers 562, 562. The pair of rollers 562, 562 are arranged at the upper end of the door hanger 561 with a gap between them in the left-right direction. The connector 575 is attached to the upper end of the door hanger 561, between the pair of rollers 562, 562. The connector 575 is a device that connects the car door 56 (the door hanger 561) to a drive belt 594 (described later) of the door opening and closing device 59.

[0022] The door support structure 58 includes a door rail 580 and a threshold 581. The door rail 580 is formed in a strip shape and is provided in the left-right direction on the upper front surface of the car 5. When the rollers 562, 562 of the door hanger 561 are placed on the upper edge of the door rail 580, the car door 56 is hung from the door rail 580 in a state in which it can slide in the left-right direction along the door rail 580. The door rail 580 is a structure that supports the upper part of the car door 56 while allowing the car door 56 to open and close. The threshold 581 is provided in the left-right direction on the lower front surface of the car 5 along the lower edge of the opening 5a of the car 5 and so that both ends are wider in the left-right direction than the lower edge of the opening 5a. The threshold 581 includes a groove 581a. The groove 581a is formed in the left-right direction and receives a guide shoe 563 that protrudes downward from the lower end of the car door 56. The guide shoe 563 corresponds to the guide body of the present invention. The threshold 581 is a structure that supports the lower part of the car door 56 while enabling the car door 56 to open and close.

[0023] The landing door 36 and the door support structure 38 are similar to the car door 56 and the door support structure 58 .

[0024] The door opening and closing device 59 includes a drive motor 590, a reduction pulley 591, a pair of pulleys 592, 592, a reduction belt 593, and a drive belt 594. The drive motor 590 is provided on the front of the top surface of the car 5. The reduction pulley 591 is provided on either the left or right end of the upper front surface of the car 5. One pulley 592 is provided coaxially with and integral with the reduction pulley 591. The other pulley 592 is provided on the other end of the upper front surface of the car 5, either the left or right end. The reduction belt 593 is an endless belt wound around the drive shaft of the drive motor 590 and the reduction pulley 591. The drive belt 594 is an endless belt wound around the pair of pulleys 592, 592. The drive belt 594 is provided in the left-right direction and parallel to the door rail 580.

[0025] When the drive motor 590 is driven, the rotation is transmitted to the speed reduction pulley 591 via the speed reduction belt 593, causing the speed reduction pulleys 591 and 592 to rotate, and the drive belt 594 moves in a circular motion accordingly. As a result, the two left and right car doors 56, 56 reciprocate along the door rail 580, performing an opening and closing operation. One car door 56 is connected to one side of the drive belt 594 by a connector 575, and the other car door 56 is connected to the other side of the drive belt 594 by the connector 575. As a result, the pair of car doors 56, 56 move in directions opposite to each other. In other words, the car door device 55 and the landing door device 35 are of a center-open type in which the opening 5a of the car 5 opens from the center.

[0026] As shown in FIG. 4, the guide shoes 563 are provided at two locations, one on the left and one on the right side of the lower part of the car door 56 (the door panel 560 thereof). The guide shoes 563 are provided at two locations, one on the door stop side (the door closing side) and one on the door pocket side (the door closing side). The guide shoes 563 are detachably attached to the car door 56 (the door panel 560 thereof). The lower part of the car door 56 (the door panel 560 thereof) is provided with a bracket 560a that is offset forward from the back surface and has a predetermined gap between it and the bracket 560a, and the guide shoes 563 are detachably attached to the bracket 560a.

[0027] The two guide shoes 563, 563 basically have the same configuration, but differ in two respects: i) the width W1 in the left-right direction of the guide shoe 563 on the door-closing side is shorter than the width W2 in the left-right direction of the guide shoe 563 on the door-opening side, and ii) the guide shoe 563 on the door-closing side is equipped with a cleaning tool 570.

[0028] As shown in Figures 5 and 6, the guide shoe 563 (hereinafter, when simply referred to as the guide shoe, it refers to the guide shoe on the door closing side) functionally comprises a guide portion 563a, a fixing portion 563b, and a recess 563c.

[0029] The guide portion 563a protrudes downward from the lower end of the car door 56, and at least the tip side is inserted (engaged) into the groove 581a of the threshold 581. The guide portion 563a has a shape that is elongated in the left-right direction, and is guided by the groove 581a as the car door 56 moves.

[0030] The fixing portion 563b extends upward from the guide portion 563a and is attached to and fixed to the bracket 560a. The fixing portion 563b is attached to and fixed to the bracket 560a using a plurality of fixing devices (two fixing devices in this example) 566. The fixing portion 563b has round holes 563d as through-holes for the shafts of the fixing devices 566. The round holes 563d are formed in two locations on the fixing portion 563b that are spaced apart in the left-right direction. The round holes 563d are formed at the same height, in two locations near one side edge and the other side edge of the fixing portion 563b. Corresponding to these locations, the bracket 560a also has round holes as through-holes for the shafts of the fixing devices 566. As an example, the fixing devices 566 are fasteners (including appropriate washers, spring washers, etc. as necessary; hereinafter, the same applies when referring to fasteners) formed by a combination of a bolt and a plate nut 566a. Alternatively, if the bracket 560a has a screw hole (locking hole) instead of a round hole, the fixing device 566 is, for example, a fastener made up of a combination of a bolt and a screw hole.

[0031] The recess 563c is a recess defined between a vertical line passing through one side edge of the fixing portion 563b (in this example, the side edge on the door closing side, which is the tip edge of the second protrusion 564b described later) and one side edge of the guide portion 563a (in this example, the side edge on the door closing side).

[0032] The guide shoe 563 is configured to include a base 564 and a guide member 565 in terms of components.

[0033] The base 564 is a flat plate. The base 564 is a base used for a guide shoe on the door-opening side, with one corner of the lower portion removed. The base 564 has a rectangular shape, and the corner of the lower portion on the door-closing side is removed in a rectangular shape. As a result, the base 564 has a first protrusion 564a and a second protrusion 564b. The first protrusion 564a is a portion that protrudes downward with a width narrower than the width of the base 564 in the left-right direction, as one side edge (the side edge on the door-closing side in this example) is offset in a direction approaching the other side edge. The second protrusion 564b is a portion that protrudes laterally with a width narrower than the width of the base 564 in the up-down direction, as one edge is offset in a direction approaching the upper edge. The first protrusion 564a and the second protrusion 564b are rectangular.

[0034] The second protrusion 564b (its lower part) has one of two round holes 563d, 563d (in this example, the round hole on the door closing side). The second protrusion 564b (its upper part) has a screw hole 563e. The screw hole 563e is an engaging hole for the shaft of a fastener used to secure the cleaning tool 570 to the second protrusion 564b. The screw hole 563e is formed above the round hole 563d. As a result, the round hole 563d and the screw hole 563e (their centers) are positioned on the same vertical line.

[0035] Guide member 565 is made of a material such as hard resin or rubber, and is a wear-resistant member that does not easily wear down even when repeatedly sliding in and out of groove 581a. Guide member 565 has a slot into which first protrusion 564b fits, and is integrated with base 564. Alternatively, guide member 565 is formed integrally with base 564 by molding, for example.

[0036] In terms of function, cleaning tool 570 includes cleaning part 570a and fixing part 570b.

[0037] Cleaning section 570a protrudes downward from the lower end of car door 56, and is adjacent to guide section 563a of guide shoe 563, with at least its tip inserted into groove 581a of threshold 581. Cleaning section 570a has a configuration in which a predetermined number of brushes are implanted in the lower part of an enlarged head section, and the predetermined number of brushes extend downward from the underside of the head section with the same length.

[0038] The fixing portion 570b extends upward from the cleaning portion 570a and is attached to and fixed on a second protrusion (mounting portion) 564b of the base 564. The fixing portion 570b has a shape that is flat in the front-to-rear direction, elongated in the up-to-down direction, and extends straight upward because the rear surface of the fixing portion 570b is offset in a direction approaching the front surface. The fixing portion 570b is attached and fixed to the base 564 using multiple fixing devices (two fixing devices in this example) 566, 573. The fixing portion 570b has elongated holes 570c as through holes for the shafts of the fixing devices 566, 573. The elongated holes 570c are long in the up-to-down direction. The elongated holes 570c are formed in two locations on the fixing portion 570b that are spaced apart in the up-to-down direction. The elongated holes 570c are formed at two locations, the lower end and the upper end of the fixing portion 570b. The fixing device 566 also serves as a fixing device for the fixing portion 563b of the guide shoe 563. However, the fixing device may be divided into one for fixing the guide shoe 563 and one for fixing the cleaning tool 570. As an example, the fixing device 573 is a fastener formed by combining a bolt and the screw hole 563e of the fixing portion 563b of the guide shoe 563.

[0039] In terms of components, cleaning tool 570 is configured to include base 571 and brush 572. Base 571 is a resin member. Brush 572 is a hard or soft brush, and has flexibility, although the degree of flexibility varies depending on whether it is hard or soft.

[0040] As shown in Figure 7, the cleaning part 570a and the fixed part 570b of the cleaning tool 570 are arranged so as to fit within an area (within the width area of ​​the recess 563c) whose boundaries are an up-down line passing through the tip edge of the protrusion of the fixed part 563b of the guide shoe 563 and an up-down line passing through the side edge of the guide part 563a of the guide shoe 563.

[0041] A thickness T2 of cleaning portion 570a in the front-rear direction is smaller than a thickness T1 of guide portion 563a in the front-rear direction. Furthermore, a height H2 of cleaning portion 570a is smaller than a height H1 of guide portion 563a. Therefore, by loosening fasteners 566, 573 and moving cleaning tool 570 upward, cleaning tool 570 can be repositioned to a height position where cleaning portion 570a fits within the projection area of ​​guide portion 563a (a cross-sectional area in a vertical plane perpendicular to the left-right direction, shown by hatching) when viewed from the left-right direction, as shown in FIGS. 7(c) and 7(d).

[0042] The guide shoe 363 of the landing door 36 is similar to the guide shoe 563 of the car door 56, and the landing door 36 is also provided with a cleaning tool similar to the cleaning tool 570 of the car door 56.

[0043] As described above, according to the door device 35, 55 of this embodiment, the cleaning tool 570 is provided so that its height position can be adjusted to match the positional relationship between the lower part of the door 36, 56 and the bottom surface of the groove 381 a, 581 a of the threshold 381, 581. Therefore, according to the door device 35, 55 of this embodiment, the cleaning tool 570 can be appropriately installed depending on the situation at the installation site of the elevator 1.

[0044] For example, the height position of cleaning part 570a of cleaning tool 570 can be adjusted according to the depth of grooves 381a, 581a of thresholds 381, 581, or the height position of cleaning part 570a can be adjusted according to the vertical deviation of the installation height of the door (i.e., the height position of the bottom of the door) due to installation adjustment of doors 36, 56. Furthermore, if cleaning part 570a comes into contact with the bottom surface of grooves 381a, 581a, this will cause abnormal noise, so the height position of cleaning part 570a can be adjusted so that cleaning part 570a is lifted (separated) from the bottom surface of grooves 381a, 581a.

[0045] In the door devices 35 and 55 according to this embodiment, the cleaning portion 570a of the cleaning tool 570 is disposed adjacent to the guide portion 563a of the guide shoe 363, 563, and the fixing portion 570b of the cleaning tool 570 extends upward from the cleaning portion 570a. Therefore, in the door devices 35 and 55 according to this embodiment, the cleaning tool 570 does not protrude significantly laterally from the side edges of the guide shoes 363, 563, and an overall compact design can be achieved. Note that in the door device described in Patent Document 1, the fixing portion of the cleaning tool extends laterally from the cleaning portion, resulting in an overall horizontally elongated design that not only occupies a large area but also creates a risk of the cleaning tool coming into contact with surrounding objects and being damaged because the cleaning portion protrudes significantly laterally from the side edges of the guide shoes and is separated from the guide shoes.

[0046] In the door device 35, 55 according to this embodiment, the cleaning portion 570a and the fixed portion 570b of the cleaning tool 570 are arranged to fit within a width region in the left-right direction defined by a vertical line (vertical line) passing through the tip edge of the protrusion 564b of the fixed portion 563b of the guide shoe 363, 563 and a vertical line (vertical line) passing through the side edge of the guide portion 563a of the guide shoe 363, 563. Therefore, in the door device 35, 55 according to this embodiment, the cleaning tool 570 does not protrude laterally at all from the side edge of the guide shoe 363, 563, and an overall more compact design can be achieved.

[0047] In the door device 35, 55 according to this embodiment, the position of the cleaning tool 570 can be changed to a height position where the cleaning portion 570a of the cleaning tool 570 is within the projected area (cross-sectional area in a vertical plane perpendicular to the left-right direction) of the guide portion 563a of the guide shoe 363, 563 when viewed from the left-right direction. Therefore, in the door device 35, 55 according to this embodiment, for example, when the cleaning tool 570 is assembled into the door 36, 56 at the time of shipping from the factory, if the cleaning tool 570 is raised, it is possible to prevent the cleaning tool 570 from coming into contact with surrounding objects and being damaged during transportation, and it is also possible to adjust the cleaning tool 570 to a required height position when installing it.

[0048] Furthermore, if the head portion of cleaning portion 570a of cleaning tool 570 is located within the projection area of ​​guide portion 563a of guide shoe 363, 563 when viewed from the left and right, and only brush 572 protrudes from the lower end line of guide portion 563a toward the bottom surface of groove 381a, 581a of threshold 381, 581, even if an object comes into contact with the bottom of door 36, 56 when the door is closed and tilts, if the groove 381a, 581a is shallow, guide portion 563a will come into contact with the bottom surface of groove 381a, 581a before the head portion of cleaning portion 570a, thereby preventing the head portion from being damaged.

[0049] In the door device 35, 55 according to this embodiment, the thickness T2 in the front-rear direction of the cleaning portion 570a of the cleaning tool 570 is smaller than the thickness T1 in the front-rear direction of the guide portion 563a of the guide shoe 363, 563. Therefore, in the door device 35, 55 according to this embodiment, the cleaning portion 570a does not come into sliding contact with the side wall of the groove 581a of the threshold 581 when the door is opened or closed, and wear of the cleaning portion 570a can be prevented.

[0050] The present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the spirit of the present invention.

[0051] In the above embodiment, the cleaning tool 570 is provided on the guide shoes 363, 563 on the door closing side (door stop side). However, the present invention is not limited to this. The cleaning tool may be provided on the guide shoe on the door opening side (door pocket side). Alternatively, the cleaning tool may be provided on both guide shoes.

[0052] In the above embodiment, the recessed portion 563c of the guide shoes 363, 563 is provided at a corner on the door closing side (door stop side). However, the present invention is not limited to this. The recessed portion may be provided at a corner on the door opening side (door pocket side).

[0053] In the above embodiment, cleaning tool 570 is a brush 572. However, the present invention is not limited to this. In short, any type of cleaning tool can be used as long as it has the function of cleaning the groove as the door moves. For example, as another example, cleaning tool 570 is a scraper, as shown in FIG. 8.

[0054] In the above embodiment, the base 564 of the guide shoe 563 is rectangular, and therefore the tip edge of the protrusion 564b of the fixed portion 563b is a line that extends in the vertical direction. The side edges of the guide portion 563a of the guide shoe 563 are also lines that extend in the vertical direction. However, the present invention is not limited to this. For example, the tip edge and side edges may be curves that bulge outward in the center. In this case, the "vertical line passing through the tip edge of the protrusion of the fixed portion of the guide body" and the "vertical line passing through the side edge of the guide portion of the guide body" of the present invention may be either a line that passes through the most bulging point of the curve, or a line that passes through any point on the curve.

[0055] In the above embodiment, the door opening and closing device 59 is a system in which the drive motor 590 and the pulley 592 are connected by the speed reduction belt 593, and the pulley 592 and the drive belt 594 wound around the pulley 592 are indirectly driven. However, the present invention is not limited to this. The door opening and closing device may be a system in which the pulley is directly connected to the drive motor, and the pulley and the drive belt wound around the pulley are directly driven.

[0056] In the present invention, terms specifying a shape, part, state, or direction, such as "rectangular," "straight line," "center," "central," "end," "same," "parallel," "up and down," "front and back," and "left and right," include not only the thing itself, but also the concept of "approximately" meaning something close to or similar to it. Furthermore, "upper" and "lower" are not limited to the vertical direction, but also include directions inclined relative to the vertical direction. [Explanation of symbols]

[0057] 1... elevator, 2... hoistway, 30... landing, 31... three-sided jamb, 35... landing door device, 36... landing door, 360... door panel, 361... door hanger, 362... roller, 363... guide shoe (guide body), 38... door support structure, 380... door rail, 381... threshold, 381a... groove, 5... car, 5a... opening, 55... car door device, 56... car door, 560... door panel, 5 60a...bracket, 561...door hanger, 562...roller, 563...guide shoe (guide body), 563a...guide portion, 563b...fixing portion, 563c...recess, 563d...through hole (round hole), 563e...screw hole, 564...base, 564a...first protrusion, 564b...second protrusion (mounting portion), 565...guide member, 566...fixing tool, 566a...plate nut, 570...cleaning tool , 570a... cleaning part, 570b... fixing part, 570c... through hole (long hole), 571... base, 572... brush, 573... fixing device, 575... connecting body, 58... door support structure, 580... door rail, 581... threshold, 581a... groove, 59... door opening and closing device, 590... drive motor, 591... reduction pulley, 592... pulley, 593... reduction belt, 594... drive belt, H1... guide shoe H2...height of the cleaning part 570a of the cleaning tool 570; T1...thickness of the guide part 563a of the guide shoe 563 in the front-rear direction; T2...thickness of the cleaning part 570a of the cleaning tool 570 in the front-rear direction; W1...width of the guide shoe 563 (of the guide part 563a) on the door closing side in the left-right direction; W2...width of the guide shoe 563 (of the guide part 563a) on the door opening side in the left-right direction

Claims

1. An elevator door device comprising: a door that moves left and right to open and close an opening, the door having a guide body protruding from a lower end; a threshold that is disposed along the lower edge of the opening and has a groove into which the guide body is inserted; and a cleaning tool that protrudes from the lower end of the door and is inserted into the groove to clean the groove as the door moves, The guide body includes a guide portion inserted into the groove, a fixed portion extending upward from the guide portion and having a protrusion protruding laterally and fixed to the lower part of the door, and a recess defined between a vertical line passing through the tip edge of the protrusion of the fixed portion and the side edge of the guide portion, The cleaning tool includes a cleaning part that is inserted into the groove close to the guide part of the guide body, and a fixing part that extends upward from the cleaning part and is fixed to a protruding piece of the fixing part of the guide body, and is arranged so as to fit within an area defined by a vertical line passing through the tip edge of the protruding piece of the fixing part of the guide body and a vertical line passing through the side edge of the guide part of the guide body as boundary lines, and is provided so as to be adjustable in height position; The protrusion on the fixing part of the guide body has a through hole, and the fixing part of the cleaning tool has a long through hole in the vertical direction, and a fixing tool is inserted into the two through holes, and the protrusion on the fixing part of the guide body is fixed to the bottom of the door, and the fixing part of the cleaning tool is fixed to the protrusion on the fixing part of the guide body. Elevator door device.

2. The guide body comprises a base in which one corner of the lower rectangular portion is cut away so that a first protrusion protrudes downward and a second protrusion protrudes laterally, and a guide member attached to the first protrusion, the guide member being the guide portion of the guide body, the base above the guide member being the fixed portion of the guide body, and the second protrusion being the protrusion of the fixed portion of the guide body.

2. The elevator door device according to claim 1.

3. The cleaning tool can be moved to a height position where the cleaning portion of the cleaning tool is within the projection area of ​​the guide portion of the guide body when viewed from the left and right. The elevator door device according to claim 1 or 2.

4. The thickness of the cleaning part of the cleaning tool in the front-rear direction is smaller than the thickness of the guide part of the guide body in the front-rear direction. The elevator door device according to claim 1 or 2.

5. The guide body is provided at two locations on the left and right sides of the lower part of the door, One guide body has a width in the left-right direction shorter than that of the other guide body and is provided with a cleaning tool; The other guide body does not have a cleaning tool. The elevator door device according to claim 1 or 2.

6. The elevator door device according to claim 1 or 2 is provided. Elevator.

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