JP5826010B2 - Elevator door equipment - Google Patents

Description

  The present invention relates to an elevator door device, and more particularly to an elevator door device that can be applied to any of a side open type and a center open type.

  An elevator door device is mounted on the elevator. The elevator door device includes a car door device installed in the car and a landing door device installed in the hall, and an opening / closing device that opens and closes the door panel is provided in the car. In the landing where the car has landed, the car door device and the landing door device are engaged, and each door panel is opened and closed in conjunction with the opening and closing device.

  The elevator door device includes a sill provided at a lower edge portion of the entrance / exit. The sill is formed with a sill groove for guiding the door shoe of the door panel, and pebbles, sand, dust, etc. (hereinafter collectively referred to as “pebbles”) may enter the sill groove. is there. In particular, when the door panel is opened and the user gets on and off, pebbles and the like easily enter the sill groove. For example, when the user passes over the sill groove, pebbles and the like attached to the back of the shoe fall into the sill groove. If pebbles or the like enter the sill groove, smooth movement of the door shoe is hindered, which may cause the door panel to open and close poorly.

  In view of such a situation, several elevator door devices have been proposed in which a member that closes the sill groove is provided without obstructing the opening and closing of the door panel so that pebbles and the like do not enter the sill groove (for example, (See Patent Documents 1 to 4).

Japanese Patent Laid-Open No. 2003-48682 JP 2002-68647 A Japanese Patent Laid-Open No. 7-61751 JP-A-6-56377

  According to the device disclosed in the above-mentioned patent document, it is possible to prevent pebbles and the like from entering and depositing into the sill groove, but the sill groove closing mechanism is complicated. For this reason, there is room for improvement in terms of cost reduction due to simplification of the closing mechanism. There is also a need for a simple device that can be easily applied to existing facilities.

Further, the elevator door device according to the present invention has a Doashu, at least a pair of door panel for opening and closing the entrance, the center open type elevator door device and a sill groove for guiding the Doashu, one end attached to one door panel, mounted to the other of the other end Gad rear panel, the elongated closure member which closes the sill groove located between door panel, said one end and said other end of said closure member A winding shaft attached to at least one of the doors, provided on the back side of the one door panel and directly above the door shoe provided on the center side of the entrance / exit; and a closing member attached to the winding shaft side. a winding portion for winding said closure member by closing the front Kido rear panel and energized, provided Doashu the center side of the entrance, the closure A shoe guide portion that changes the direction of the closing member in order to introduce a material from the winding portion into the sill groove, and the shoe guide portion has both sides in the width direction of the closing member from both sides in the thickness direction. It is formed so that it may be inserted | pinched .

The one end of the closing member is preferably fixed to the door shoe .

In addition, it is preferable that a guide portion that suppresses an upper surface of the closing member and prevents the closing member from being lifted is provided on a side wall of the sill groove that is located in a center portion in the width direction of the entrance / exit .

  According to the elevator door apparatus according to the present invention, it is possible to suppress pebbles and the like from entering and depositing in the sill groove without obstructing the opening and closing of the door panel by the simplified simple structure. Thereby, the opening and closing failure of the door panel due to pebbles and the like accumulated in the sill groove can be prevented. It also contributes to improving the efficiency of elevator cleaning and maintenance.

In the elevator door apparatus which is 1st Embodiment of this invention, it is a perspective view which shows a landing door apparatus. It is a principal part enlarged view of the landing door apparatus shown in FIG. FIG. 3 is a sectional view taken along line AA in FIG. 2. In the elevator door apparatus which is 2nd Embodiment of this invention, it is a figure which expands and shows the principal part of a landing door apparatus. It is an expansion perspective view of the door shoe shown in FIG. In the elevator door apparatus which is a modification of 2nd Embodiment of this invention, it is a figure which expands and shows the principal part of a landing door apparatus.

  Hereinafter, embodiments of an elevator door device according to the present invention will be described in detail with reference to the drawings.

  An elevator is an elevator that moves up and down between landings where a car is installed on each floor in a hoistway. For example, a machine room is provided on the hoistway in the elevator, and in the machine room, a hoist that raises and lowers the car and a control device that uniformly controls the operation of each element of the elevator are installed. ing. The operation of the elevator door device (opening and closing of the door panel) is controlled by this control device.

  The elevator door device includes a car door device and a landing door device. Hereinafter, the landing door device (10, 10x, 10y) will be described as an example, but the same configuration as that of the landing door device can be applied to the car door device.

<First Embodiment>
The side open type (SO type) elevator door apparatus which is 1st Embodiment is demonstrated using FIGS. 1-3. FIG. 1 is a perspective view of the landing door device 10 viewed from the hoistway side. FIG. 2 is an enlarged view of the closing means 40, in which a part of the sill 31 is a cross-sectional view (a cross-sectional view in which the sill 31 is cut along the vertical direction at the part of the sill groove 30). .

  As shown in FIGS. 1 and 2, the landing door device 10 includes a door frame 11 provided at an edge of the entrance P and a door shoe 21, a door panel 20 that opens and closes the entrance P, and guides the door shoe 21. And a closing groove 40 for the threshold groove 30. The landing door device 10 is an SO type in which the side end 20f of the door panel 20 and the door contact surface 11f of the door frame 11 coincide with each other and the entrance P is closed. In the elevator door device of the present embodiment, as described above, the car door device (not shown) has the same configuration as that of the landing door device 10 described in detail below.

  The landing door device 10 is provided with two door panels 20 that slide in conjunction with each other in the same direction. Two threshold grooves 30 are provided corresponding to the two door panels 20. The sill 31 where the sill groove 30 is formed is installed on the surface of the landing wall 12 facing the hoistway side. And it exists over the full width of the lower edge part of the entrance / exit P, and extends to the back side of the door frame 11. A door frame 11, also called a three-way frame, is attached to the landing wall 12. Here, the back side of the door frame 11 means the side of the door frame 11 that is not visible to the user. On the back side of the door frame 11, there is a space between the door frame 11 and the landing wall 12 in which a later-described winding unit 42 can be installed.

  The door panel 20 is a plate-like member that opens and closes the entrance / exit P. The door panel 20 has a hanger plate (not shown), and has a suspended form suspended on a landing door rail (not shown) by a hanger roller of the plate. A door shoe 21 to be introduced into the sill groove 30 is attached to the lower end portion of the door panel 20. The door shoe 21 is preferably attached to the back side (the hoistway side) of the door panel 20 that is not visible to the user. By this door shoe 21, the lower part of the door panel 20 slides along the threshold 31 in a stable state.

  An upper portion of the door panel 20 is provided with an engaging portion for engaging with the door panel of the car door device and a lock device for preventing the door panel 20 from opening when the car is not landing. . For example, if pebbles or the like accumulate in the threshold groove 30 and the movement of the door shoe 21 is hindered, the door panel 20 may not be closed sufficiently, and the locking device may not be locked, which may hinder the operation of the elevator. In the elevator door device of the present embodiment, such a situation is prevented by the closing means 40.

  As described above, the threshold groove 30 has a function of guiding the door shoe 21, and in this embodiment, two threshold grooves 30 are formed corresponding to the two door panels 20. The size of the threshold groove 30 is set in accordance with, for example, the size of the door shoe 21, has a depth and width that does not hinder smooth movement without the door shoe 21 coming off, and the size of the lower edge of the entrance P It has a length that extends beyond the entire width to the back side of the door frame 11.

  The closing means 40 blocks the sill groove 30 without inhibiting the opening and closing of the door panel 20 and suppresses pebbles and the like from entering and depositing in the sill groove 30. In order to realize such a function, the closing means 40 includes a closing member 41, a winding part 42, and a guide part 43. In this embodiment, since there are two sill grooves 30, the closing member 41 and the winding part 42 are provided corresponding to each sill groove 30, and the guide part 43 is formed along each sill groove 30. The

  The blocking member 41 is a long thin plate-like or tape-like member that can be bent at least in the longitudinal direction. The constituent material of the closing member 41 is not particularly limited, but is preferably made of steel (metal) from the viewpoint of durability and the like. More specifically, it is preferable to use a steel tape or a resin-coated steel tape as the closing member 41.

  One end of the closing member 41 is attached to the door panel 20 and has a function of closing the threshold groove 30 between the door panel 20 and the door frame 11. In the example shown in FIG. 2, one end of a closing member 41 is attached to the door shoe 21. The closing member 41 can be fixed to the door shoe 21 using a fastening member such as a bolt, for example. In the door panel 20, the fixing portion 44 to which one end of the closing member 41 is fixed is not limited to the door shoe 21, but the fixing portion 44 is attached to the door shoe 21 from the viewpoint of smooth movement of the door panel 20 and simplification of the structure. It is preferable to provide it.

  The winding unit 42 has a function of winding and accommodating the closing member 41. By this winding part 42, it becomes possible to accommodate the elongate closure member 41 compactly. The winding portion 42 is installed on the back side of the door frame 11. In the example shown in FIG. 1, two winding portions 42 are arranged side by side on a sill 31 located on the back side of the door frame 11. The portion of the sill 31 where the winding portion 42 is disposed is cut to the same depth as the bottom of the sill groove 30, thereby facilitating the introduction of the closing member 41 into the sill groove 30.

  The winding unit 42 has a winding shaft (not shown) to which the other end of the closing member 41 is attached. The winding unit 42 urges the closing member 41 toward the winding shaft, and winds the closing member 41 by closing the door panel 20. For example, the winding unit 42 urges a drum around which the closing member 41 can be wound to be rotated, and the drum rotates inside the drum in a direction to rewind the closing member 41. The urging member (spring) is assembled. The outlet of the closing member 41 is formed in a part of the case so that the closing member 41 wound around the drum can be pulled out of the case. In addition, the winding structure of the closure member 41 in the winding part 42 can apply the structure of a conventionally well-known tape measure.

  It is preferable to provide a cleaner 45 in the vicinity of the outlet of the winding unit 42. The cleaner 45 is, for example, a rubber member that comes into contact with the upper surface of the closing member 41, removes pebbles and the like placed on the upper surface of the closing member 41, and suppresses pebbles and the like from entering the case of the winding unit 42. . Pebbles and the like removed by the cleaner 45 fall into, for example, a pit of a hoistway.

  The guide portion 43 is formed on the side wall along the longitudinal direction of the threshold groove 30. In the example shown in FIG. 3, the guide portions 43 are formed so as to sandwich both sides in the width direction of the closing member 41 from above and below. The guide portion 43 is a guide groove for guiding the closing member 41 formed by cutting a side wall located above the sill groove 30 in the width direction of the sill groove 30. The guide portion 43 may be continuously formed along the longitudinal direction of the sill groove 30 from the door frame 11 on the side where the winding portion 42 is disposed to the door frame 11 facing the entrance / exit P. Is preferred.

  In the portion where the guide portion 43 is formed, the width of the sill groove 30 is widened, and the width of the closing member 41 introduced into the guide portion 43 is wider than the width of the door shoe 21. However, the fixed portion 44 extending in the vertical direction is narrower than the width of the sill groove 30 so as not to contact the sill groove 30. The guide portion 43 is adjusted to an appropriate size so that the movement of the closing member 41 is not hindered and the closing member 41 is not detached from the sill groove 30. In addition, as a form of the guide part 43, it is not limited to the form shown in FIG. 3, For example, it is good also as a step-like form formed so that the width | variety of the threshold groove 30 may become wider on the lower side rather than the upper side.

  According to the elevator door device having the above-described configuration, the closing member 41 having one end fixed to the door shoe 21 is pulled out from the winding portion 42 when the door panel 20 is opened. The blocking member 41 is guided by the guide portion 43 and extends along the sill groove 30 without detaching from the sill groove 30. Then, the blocking member 41 blocks the threshold groove 30 between the door frame 11 and the door panel 20, that is, the portion of the threshold groove 30 through which the user passes, so that pebbles and the like enter and accumulate in the threshold groove 30. Suppress. For example, pebbles and the like attached to the user's shoes and the like are prevented from falling on the upper surface of the closing member 41 and falling to the bottom of the sill groove 30.

  Since the closing member 41 is biased in the winding direction of the winding portion 42, the closing member 41 is smoothly rewound into the case of the winding portion 42 when the door panel 20 is closed. Thus, when the door panel 20 is closed, the long closure member 41 can be stored easily and compactly. Note that pebbles and the like placed on the upper surface of the closing member 41 are removed by the cleaner 45 before the winding unit 42. As a result, pebbles and the like are prevented from entering the case of the winding portion 42.

  As described above, the closing means 40 of the elevator door device according to the first embodiment opens and closes the door panel 20 in a simplified and simple structure including the closing member 41, the winding portion 42, and the guide portion 43. It is possible to prevent pebbles and the like from entering the threshold groove 30 and accumulating without hindering. Thereby, the opening and closing failure of the door panel 20 is prevented, and it contributes to the improvement of the work efficiency of cleaning and maintenance inspection.

Second Embodiment
A center open type (CO type) elevator door device according to the second embodiment will be described with reference to FIGS. FIG. 4 is an enlarged view of the closing means 40x of the landing door device 10x, and is a cross-sectional view of a part of the sill 31 (a cross section in which the sill 31 is cut along the vertical direction at the sill groove 30). FIG. 5 is an enlarged perspective view of the door shoe 21x.

  Below, the same code | symbol is attached | subjected to the component similar to 1st Embodiment, the overlapping description is abbreviate | omitted, and a different point from 1st Embodiment is demonstrated in detail.

  The landing door apparatus 10x shown in FIG. 4 is a CO type in which the side end portions 20f of the pair of door panels 20 are coincident with each other and the entrance P is closed. In the CO type, one end of the closing member 41 is attached to one door panel 20, and a winding portion 42 installed on the other end side of the closing member 41 is attached to the other door panel 20. The winding part 42 is attached to the back side of the door panel 20 similarly to the door shoes 21 and 21x. In the present embodiment, there are some parts that differ from the first embodiment by attaching the winding portion 42 to the door panel 20. Also in this embodiment, it is preferable that the car door device (not shown) has the same configuration as the landing door device 10x.

  As in the first embodiment, the closing means 40x includes a closing member 41, a winding part 42, and a guide part 43x. As described above, the closing member 41 has one end attached to the one door panel 20 and the other end attached to the other door panel 20 via the winding portion 42. And the threshold groove 30 between each door panel 20 is obstruct | occluded. One end of the closing member 41 is preferably fixed to the door shoe 21. In addition, although the winding part 42 may be attached to the both ends of the closing member 41, the form which has the winding part 42 only in the other end side of the closing member 41 is illustrated here.

  The winding portion 42 is attached to a portion located directly above the door shoe 21x on the back side of the door panel 20 with the above-described outlet being directed downward. Then, the closing member 41 pulled out from the winding portion 42 is introduced into the sill groove 30 through the shoe guide portion 22 formed in the door shoe 21x. That is, the shoe guide portion 22 changes the direction in which the closing member 41 extends.

  As shown in FIG. 5, the shoe guide portion 22 is formed on the door shoe 21 x close to the winding portion 42. The shoe guide portion 22 has a shape in which an end portion of the door shoe 21x is cut into a substantially L shape, and the closing member 41 extending along the sill groove 30 is arranged so as to be parallel to the vertical direction, that is, the sill groove. It bends so as to be substantially orthogonal to the longitudinal direction of 30. In addition, guide grooves 23 are formed on both sides of the shoe guide portion 22 so as to sandwich both sides in the width direction of the closing member 41 from both sides in the thickness direction.

  In the closing means 40x, a guide portion 43x is provided on the side wall of the sill groove 30 located at the center in the width direction of the entrance P. The guide portion 43x has, for example, a shape protruding from the side wall of the sill groove 30 in the width direction of the sill groove 30, and suppresses the upper surface of the blocking member 41 to prevent the blocking member 41 from lifting.

  Also in the CO-type elevator door device described above, the closing member 41 accommodated in the winding portion 42 is pulled out by opening the door panel 20. The closing member 41 extends along the threshold groove 30 by the shoe guide portion 22, the guide groove 23, and the guide portion 43 x without being detached from the door shoe 21 x and the threshold groove 30. Then, the closing member 41 can block the sill groove 30 between the pair of door panels 20, that is, the sill groove 30 where the user passes, and prevent pebbles and the like from entering and depositing in the sill groove 30.

FIG. 6 shows a modification of the second embodiment.
In the landing door device 10 y shown in FIG. 6, the winding portion 42 is fixed to the door shoe 21 y, and all the components of the closing means 40 y are present in the sill groove 30. The fixing method of the winding portion 42 is not particularly limited, and examples thereof include a method using a fastening member such as a bolt and a method using an adhesive or a pressure-sensitive adhesive tape.

  10, 10x, 10y landing door device, 11 door frame, 12 landing wall, 20 door panel, 21, 21x, 21y door shoe, 22 shoe guide, 30 sill groove, 31 sill, 40, 40x, 40y closing means, 41 closing member , 42 Winding part, 43, 43x guide part, 44 fixing part, 45 cleaner, P entrance / exit.

Claims (3)

At least a pair of door panels having door shoes and opening and closing the entrance;
A threshold groove for guiding the door shoe;
In the center open type elevator door device with
One end is attached to one side of the door panel, the other end is attached to the other side of the door panel, and a long closure member that closes the sill groove located between the door panels;
It has a winding shaft attached to at least one of the one end and the other end of the closing member, and is provided on the back side of the one door panel and directly above the door shoe provided on the center side of the entrance / exit. A winding portion that urges the closing member toward the winding shaft and winds the closing member by closing the door panel;
A shoe guide portion provided on a door shoe on the center side of the entrance and exit, for changing the direction of the closing member in order to introduce the closing member from the winding portion into the sill groove;
Equipped with a,
The said shoe guide part is an elevator door apparatus currently formed so that the width direction both sides of the said closure member may be inserted | pinched from the both sides of the thickness direction . The elevator door device according to claim 1,
The elevator door device in which the one end of the closing member is fixed to the door shoe . In the elevator door device according to claim 1 or 2,
The elevator door apparatus by which the guide part which suppresses the upper surface of the said obstruction | occlusion member and prevents the said obstruction | occlusion member from rising is provided in the side wall of the said sill groove located in the width direction center part of the said entrance / exit .

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