JPH08143250A - Elevator - Google Patents

Abstract

PURPOSE: To provide an elevator whose door is smoothly opened/closed by eliminating a threshold groove on the upper face of a threshold. CONSTITUTION: A car side door hanger device 12 attached to the bottom end of a car door 1 comprises a car side hanger roller attachment plate 13, a plurality of hanger rollers 4 and eccentric rollers 5 which are rotatably attached to the attachment plate 13 about a horizontal shaft at a prescribed interval horizontally. A car-side door rail 6 extended to the open/close direction of the car door 1 in the bottom in the tip side of a car floor 8 is sandwiched between a pair of a hanger roller 4 and an eccentric roller 5. And a car-side door shoe 15 is attached to the upper end of the car door 1 in such a state as stored in a car-side door shoe guide groove 16a provided in the car door upper frame 16.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION This invention relates to elevators,
Particularly, it relates to a car and a hall door mechanism.

[0002]

2. Description of the Related Art FIG. 8 is a perspective view showing the surroundings of a conventional elevator car door, and FIG. 9 is a side view showing the surroundings of a conventional elevator car door. In the figure, 1 is a rectangular car door having a rectangular cross section by bending a steel plate, 2 is a door hanger fixed to the upper edge of the car door 1 by mounting bolts 3,
A pair of hanger rollers 4 are rotatably attached to both ends of the door hanger 2 in the longitudinal direction about a horizontal axis, and 5 are rotatably attached to the door hanger 2 below the respective hanger rollers 4 at predetermined intervals around the horizontal axis. Eccentric rollers, 6 car doors on top of car door 1
It is a car-side door rail extending in the opening and closing direction. Here, the car door 1 is hung on the car-side door rail 6 by hanging the door hanger 2 on the car-side door rail 6, and the hanger roller 4 smoothly opens and closes along the car-side door rail 6 while rotating on the car-side door rail 6. . The eccentric roller 5 is arranged so as to contact the lower surface side of the car-side door rail 6 to prevent the door hanger 2 itself from jumping up. 7 is a car sill extending in the opening / closing direction of the car door 1 on the tip side of the car floor 8, 9 is a sill groove dug in the opening / closing direction of the car door 1 on the upper surface side of the car sill 7, 10 is a sill groove 9 It is a door shoe attached to the lower end of the car door 1 so as to be engaged therein. Here, although not shown, the hall side has the same configuration as the car side. And
A car-side engaging device (not shown) is attached to the car door 1, a hall-side engaging device (not shown) is attached to the hall door, and a door opening / closing mechanism (not shown) is further provided on the car side. Is installed.

Next, the operation of the above conventional elevator will be described. When the door opening / closing mechanism installed on the car side operates, a door opening / closing force acts on the car door 1. Therefore, this door opening / closing force causes the hanger roller 4 to move while rotating on the car-side door rail 6, so that the car door 1 is moved to the car-side door rail 6
The car entrance is opened and closed. When the car door 1 is moved, the door shoe 10 moves in the sill groove 9 of the car sill 7, and the swing of the lower end side of the car door 1 suspended on the car side door rail 6 is prevented. Here, when the car lands, the car side engagement device engages with the landing side engagement device. Then, the door opening / closing force acting on the car door 1 is transmitted to the landing door (not shown) via the car side and the landing side engaging devices, and the landing door is opened / closed in conjunction with the opening / closing operation of the car door 1. Will be done.

[0004]

As described above, in the conventional elevator, door shoes are attached to the car doors and the lower ends of the landing doors that are hung on the car-side and landing-side door rails, respectively, and the car sill and the landing sill are installed. A sill groove for guiding the door shoe is provided on the upper surface side to prevent swinging on the lower end side during the opening / closing operation of the car door and the hall door. Therefore, there is a problem that foreign matter such as stones, sand, and dust easily enters the sill groove and the door shoe obstructs the opening / closing operation of the door by catching the foreign matter entering the sill groove.

The present invention has been made to solve the above problems, and eliminates the sill groove on the upper surface of the sill,
The purpose is to obtain an elevator that can open and close the door smoothly.

[0006]

The elevator according to the first aspect of the present invention is a car door, a landing door that opens and closes in conjunction with the opening and closing operation of the car door, and a car on the lower end side of the car floor. It has a car-side door rail that extends in the door opening / closing direction, a car-side hanger roller mounting plate, and a plurality of car-side hanger rollers that are rotatably mounted on the car-side hanger roller mounting plate around the horizontal axis at predetermined horizontal intervals. Then, the car-side hanger roller mounting plate is attached to the lower side of the car door so that the plurality of car-side hanger rollers travel on the car-side door rail, and the car-side door hanger device and the upper side of the car door are engaged. A car door fall prevention device that prevents the car door from falling down, a landing side door rail that extends in the opening and closing direction of the landing door at the lower end of the landing floor, a landing side hanger roller mounting plate, and this The landing-side hanger roller mounting plate has a plurality of landing-side hanger rollers mounted rotatably around a horizontal axis at predetermined intervals in the horizontal direction, and the landing-side hanger rollers are mounted so as to run on the landing-side door rail. The hanger roller mounting plate is provided with a landing-side door hanger device attached to a lower side of the landing door, and a landing-door collapse prevention device that engages with an upper side of the landing door to prevent the landing-door collapse.

In the elevator according to the second aspect of the present invention, in the first aspect of the invention, at least one of the car door fall prevention device and the landing door fall prevention device is erected upward on the upper end of the door. And a door shoe guide groove that extends in the opening / closing direction of the door and that accommodates the plurality of door shoes and guides the movement of the plurality of door shoes.

Further, an elevator according to a third invention of the present invention is the elevator according to the first invention, wherein at least one of the car-side hanger roller mounting plate and the landing-side hanger roller mounting plate has an upper mounting plate to which a hanger roller is mounted. The lower mounting plate rotatably mounted on the upper mounting plate, and the lower mounting plate detachably mounted across the upper mounting plate and the lower mounting plate. And a fixing plate for integrally fixing the.

[0009]

In the first aspect of the present invention, when the door opening / closing force is applied to the car door, the car side hanger roller of the car side door hanger device attached to the lower side of the car door moves on the car side door rail by this door opening / closing force. Move while rotating
The car door is guided by the car side door rail and moves in the direction to open or close the door. At this time, the upper side of the car door is engaged with the car door fall prevention device to prevent the upper side of the car door from falling. On the other hand, when the door opening / closing force acts on the hall door via the car door, the hall-side hanger roller of the hall-side door hanger device attached to the lower side of the hall door moves while rotating on the hall-side door rail due to the door opening / closing force. , The hall door is guided by the hall door rail and moves in the direction of opening or closing the door in conjunction with the car door. At this time, the upper portion of the hall door is engaged with the hall door fall prevention device to prevent the upper portion of the hall door from falling. Therefore,
Opening of car doors and landing doors is possible without the need for the doors on the floors and floors of the car floors and landing floors. The operation is smooth.

According to the second aspect of the present invention,
When the door is moved, a plurality of door shoes standing upright on the upper end of the door move in a door shoe guide groove extending in the door opening / closing direction at the upper part of the doorway. Therefore, the upper side of the door is prevented from falling and the door is smoothly opened and closed.

According to the third aspect of the present invention,
Usually, the fixed plate is attached across the upper mounting plate and the lower mounting plate, and the upper mounting plate and the lower mounting plate are integrated. On the other hand, when the fixing plate is removed, the lower mounting plate can rotate with respect to the upper mounting plate. Then, when the lower mounting plate is rotated, a part of the hanger roller and the door rail are exposed. Therefore, the hanger roller and the door rail are inspected.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. Example 1. 1 is a side view showing a car door of an elevator according to a first embodiment of the present invention, and FIG. 2 is a first embodiment of the present invention.
The partially broken front view showing the car door of the elevator according to
3 is a perspective view of a car-side door hanger device for an elevator according to the first embodiment of the present invention as viewed from the front side, and FIG. 4 is a perspective view of a car-side door hanger device for an elevator according to the first embodiment as viewed from the back side. Therefore, in the figure, the same or corresponding parts as those of the conventional elevator shown in FIGS. 8 and 9 are designated by the same reference numerals, and the description thereof will be omitted.

In the figure, reference numeral 11 denotes a car-side rail mounting angle attached to the lower surface of the car floor 8. With this car-side rail mounting angle 11, the car-side door rail 6 is located at the lower end of the car floor 8 on the car door 1 side. It is extended in the opening / closing direction. Reference numeral 12 is composed of a car-side hanger roller mounting plate 13, a hanger roller 4 and an eccentric roller 5 rotatably mounted on the car-side hanger roller mounting plate 13 so as to be rotatable about a horizontal axis, and is fastened to the lower end of the car door 1 by a mounting bolt 3. It is a fixed car side door hanger device.
The car-side hanger roller mounting plate 13 is formed by bending a steel plate having a predetermined thickness so as to bypass the top side of the car floor 8 where the mounting holes 13a through which the mounting bolts 3 are inserted are bypassed. It is folded back vertically at the bottom,
Further, the lower end side is bent to the car side door rail 6 side to be manufactured. Further, two hanger rollers 4 are attached to a lower part of the car floor hanger roller mounting plate 13 on the lower end side of the car floor 8 so as to be rotatable around horizontal axes at predetermined intervals in the horizontal direction, and two eccentric rollers 5 are further installed. The hanger rollers 4 are mounted below the respective hanger rollers 4 at predetermined intervals so as to be rotatable around a horizontal axis. When the car side door hanger device 12 is attached to the lower end of the car door 1, the car side door rail 6 is sandwiched between the pair of hanger roller 4 and eccentric roller 5.

Reference numeral 14 is a liner, 15 is a car-side door shoe that is erected upward from the upper end of the car door 1, and 16 is a car door upper frame at the upper part of the car doorway. A car-side door shoe guide groove 16a for accommodating and guiding the side door shoe 15 is dug in the opening / closing direction of the car door 1. Here, the car side door shoe 15 and the car side door shoe guide groove 16a constitute a car door fall prevention device.

Although not shown, the landing side is also constructed in the same manner as the car side. That is, a landing door rail extends in the opening / closing direction of the landing door at the lower end of the landing floor. At the lower end of the hall door, a hall door door hanger device having the same structure as the car side door hanger device 12 is attached, and the hall door door rail is sandwiched between the hanger roller and the eccentric roller forming a pair of the hall door door hanger device. ing. Furthermore, at the upper end of the landing door, a landing side door shoe is erected upward,
This landing side door shoe is housed in a landing side door shoe guide groove dug in the opening and closing direction of the landing door above the landing doorway. The landing side door shoe and the landing side door shoe guide groove form a landing door fall prevention device. A car-side engaging device (not shown) is attached to the car door 1, a hall-side engaging device (not shown) is attached to the hall door, and a door opening / closing mechanism (not shown) is attached to the car side. No) is installed.

Next, the operation of the first embodiment will be described. When the door opening / closing mechanism installed on the car side operates,
Door opening / closing force acts on the car door 1. Therefore, the door opening / closing force causes the hanger roller 4 to move while rotating on the car side door rail 6, and the car door 1 is guided and moved by the car side door rail 6 in the direction of opening or closing the car doorway. At this time, the own weight of the car door 1 is supported by the car side door rail 6 via the hanger roller 4. And
The car side door shoe 15 moves in the car side door shoe guide groove 16a provided in the car door upper frame 16, and the car door 1 can move without the upper side thereof falling down. Further, the eccentric roller 5 comes into contact with the lower surface of the car-side door rail 6 and moves while rotating, so that the car-side door hanger device 12 itself can move without bouncing up.

When the car lands on the floor, the car side engagement device engages with the hall side engagement device. Then, the door opening / closing force acting on the car door 1 is transmitted to the hall door via the car side and hall side engaging devices, and the hall door is opened / closed in conjunction with the opening / closing operation of the car door 1. The opening / closing operation of the hall door is the same as the opening / closing operation of the car door 1 described above, and therefore the description thereof is omitted here.

As described above, according to the first embodiment, the car-side door rail 6 is provided below the front end of the car floor 8 in the opening / closing direction of the car door 1, and the car-side door hanger device 12 moves the hanger roller 4 toward the car. Since it is attached to the lower end of the car door 1 so as to be able to travel on the door rail 6, the sill groove provided in the car sill below the car door 1 in the conventional elevator is no longer necessary, which has occurred in the conventional elevator. It is possible to prevent the door shoe from stopping the opening / closing operation of the car door by catching foreign matter mixed in the threshold groove. Further, since the landing side is also configured similarly to the car side, it is possible to prevent the door shoe that is generated in the conventional elevator from stopping the opening / closing operation of the landing door by catching foreign matter mixed in the threshold groove. . Thus, an elevator that can stably and smoothly open and close the door can be obtained. Further, the car side door shoe guide groove 16a is provided on the car door upper frame 16 and the car door 1
Of the car door 1 so that the car side door shoe 15 is housed in the car side door shoe guide groove 16a.
Since multiple pieces are attached to the upper end of,
When the car door 1 is moved, the car side door shoe 15 can move in the car side door shoe guide groove 16a, and the car door 1 can be smoothly opened and closed without falling.

Example 2. 5 and 6 are perspective views of a car-side door hanger device for an elevator according to a second embodiment of the present invention seen from the front side and the back side, respectively, and FIG. 7 is an operation of a car-side door hanger device for an elevator according to a second embodiment of the present invention. FIG. 7A is a side view showing the fixing plate attached state, and FIG. 7B is a side view showing the fixing plate detached state.

In the figure, numeral 20 is a steel plate having a predetermined thickness, which is bent so as to bypass the tip of the car floor 8 from the upper side where the mounting holes 21 through which the mounting bolts 3 are inserted are provided. And a car-side hanger roller mounting plate 22 manufactured by folding the lower end side thereof toward the car-side door rail 6 side and rotatably mounted on the car-side hanger roller mounting plate 22 about a horizontal axis. A car side door hanger device including a hanger roller 4 and an eccentric roller 5. In this car-side hanger roller mounting plate 22, two hanger rollers 4 are horizontally mounted at predetermined intervals so as to be rotatable around horizontal axes, respectively, and can be pivoted to the upper mounting plate 22a via a hinge 23 and the upper mounting plate 22a. And a lower mounting plate 22b attached to the lower mounting plate 22b.
The two eccentric rollers 5 are mounted below the respective hanger rollers 4 in the vertical direction so as to be rotatable around a horizontal axis at a predetermined interval. Reference numeral 24 is a fixing plate that is fastened and fixed by fastening bolts 25 across the upper mounting plate 22a and the lower mounting plate 22b to integrally fix the upper mounting plate 22a and the lower mounting plate 22b. The other configurations are the same as those in the first embodiment.

Next, the operation of the second embodiment will be described. The car-side door hanger device 20 is attached by fastening the mounting bolts 3 passed through the mounting holes 21 to the lower end of the car door 1. At this time, as shown in FIG.
4 so as to straddle the upper mounting plate 22a and the lower mounting plate 22b, and tighten the fastening bolts 25 from the front side to integrate the upper and lower mounting plates 22a and 22b, and the car side door rail 6 to the hanger roller. 4 and eccentric roller 5
It is sandwiched between and. On the other hand, when inspecting the hanger roller 4 and the car side door rail 6, the fastening bolt 25 is removed and the fixing plate 24 is removed. Then, as shown in FIG. 7B, the lower mounting plate 22b is rotated about the hinge 23 as a center of rotation to expose the hanger roller 4 and the car-side door rail 6. Therefore, the hanger roller 4 and the car-side door rail 6 are inspected, and refueling and cleaning are performed if necessary. Then, when the inspection work is completed, the lower mounting plate 22b is rotated to the original state, the fixing plate 24 is applied from the front side to the upper and lower mounting plates 22a and 22b, and the tightening bolt 25 is further tightened. Then, the fixing plate 24 is attached.

According to the second embodiment, the car-side hanger roller mounting plate 22 of the car-side door hanger device 20 is mounted with the two hanger rollers 4 rotatably around the horizontal axis at predetermined intervals in the horizontal direction.
And a lower mounting plate 22b rotatably mounted on the upper mounting plate 22a via a hinge 23. Further, the fixing plate 24 is attached and detached across the upper mounting plate 22a and the lower mounting plate 22b. It is possible to install. Therefore, when inspecting the hanger roller 4 and the car-side door rail 6, in the first embodiment, it was necessary to remove the mounting bolt 3 to remove the entire car-side door hanger device 12 from the car door 1. Then, the inspection work can be performed only by removing the fixing plate 24, and the inspection can be performed easily and in a short time, and the maintainability can be greatly improved.

In the first embodiment, a plurality of car-side door shoes 15 are provided upright on the upper end of the car door 1, and car-side door shoe guide grooves for guiding the car-side door shoes 15 to the car-door upper frame 16 are provided. 16a is provided to configure the car door fall prevention device, but the car door fall prevention device is not limited to this, and any device that can prevent the top side of the car door 1 from collapsing may be used. Although the car-side door shoe 15 is provided in the first embodiment, a roller shoe may be used instead of the car-side door shoe 15. In this case, since the roller shoe moves while rotating in the guide groove, sliding noise is reduced and
Movement will be smooth. Further, although the car side door hanger device 20 is described in the second embodiment, it is needless to say that the same effect can be obtained if the hall side door hanger device is configured in the same manner as the car side door hanger device 20. That is.

[0024]

Since the present invention is constituted as described above, it has the following effects.

According to the first aspect of the present invention, the car door, the landing door that opens and closes in conjunction with the opening and closing operation of the car door, and the car door extending in the opening and closing direction at the lower end of the car floor A car-side door rail, a car-side hanger roller mounting plate, and a plurality of car-side hanger rollers that are rotatably mounted on the car-side hanger roller mounting plate so as to be rotatable around a horizontal axis at predetermined intervals in the horizontal direction. The car side hanger roller mounting plate is attached to the lower side of the car door so that the hanger roller runs on the car side door rail, and the car side door hanger device is engaged with the upper side of the car door to prevent the car door from collapsing. The car door fall prevention device, the landing side door rail extending in the opening and closing direction of the landing door at the lower end of the landing floor, the landing side hanger roller mounting plate and this landing side hanger roller mounting plate. It has a plurality of landing-side hanger rollers mounted rotatably around a horizontal axis at a predetermined interval in the horizontal direction, and the landing-side hanger roller mounting plate allows the landing-side hanger rollers to travel on the landing-side door rails. Since it is equipped with a landing door hanger device attached to the lower side of the landing gear and a landing door fall prevention device that engages with the upper side of the landing door to prevent the landing door from collapsing, the conventional elevator has a lower sill of the door. Since the sill groove provided on the door is no longer required, it is possible to prevent the door shoe that has been conventionally generated from catching foreign matter mixed in the sill groove and stopping the opening and closing operation of the door, and to stably and smoothly open the door. An elevator that can be opened and closed is obtained.

According to a second aspect of the present invention, in the first aspect of the invention, at least one of the car door fall prevention device and the landing door fall prevention device is provided upright on the upper end of the door. It is composed of a plurality of door shoes and a door shoe guide groove that extends in the opening / closing direction of the door at the top of the doorway and accommodates the plurality of door shoes to guide the movement of the plurality of door shoes. The door shoe moves in the door shoe guide groove and prevents the upper side of the door from falling.

Further, the elevator according to the third invention of the present invention is the elevator according to the first invention, wherein at least one of the car-side hanger roller mounting plate and the hall-side hanger roller mounting plate is an upper mounting plate to which a hanger roller is mounted. The lower mounting plate rotatably mounted on the upper mounting plate, and the lower mounting plate detachably mounted across the upper mounting plate and the lower mounting plate. Since it is composed of a fixing plate that integrally fixes the hanger roller and the door rail, the hanger roller and the door rail can be exposed by removing the fixing plate, and the maintainability can be greatly improved.

[Brief description of drawings]

FIG. 1 is a side view showing an area around a car door of an elevator according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway front view showing the periphery of the car door of the elevator according to the first embodiment of the present invention.

FIG. 3 is a perspective view of the car-side door hanger device for the elevator according to the first embodiment of the present invention as viewed from the front side.

FIG. 4 is a perspective view of the elevator car side door hanger device according to the first embodiment of the present invention as viewed from the back side.

FIG. 5 is a perspective view of a car-side door hanger device for an elevator according to a second embodiment of the present invention viewed from the front side.

FIG. 6 is a perspective view of a car-side door hanger device for an elevator according to a second embodiment of the present invention viewed from the back side.

FIG. 7 is a diagram for explaining the operation of the car side door hanger device in the elevator according to the second embodiment of the present invention.

FIG. 8 is a perspective view showing the vicinity of a car door of a conventional elevator.

FIG. 9 is a side view showing the vicinity of a car door of a conventional elevator.

[Explanation of symbols]

1 car door, 4 hanger roller, 6 car side door rail, 8 car floor, 12 car side door hanger device, 13 car side hanger roller mounting plate, 15 car side door shoe (car side door fall prevention device), 16a car side door shoe guide groove (car) Door fall prevention perspective view), 20 car side door hanger device, 22 car side hanger roller mounting plate, 22a upper mounting plate, 22b lower mounting plate, 24 fixing plate.

Claims (3)

[Claims] 1. A car door, a landing door that opens and closes in conjunction with the opening and closing operation of the car door, a car-side door rail extending in the lower direction of the car floor in the opening and closing direction of the car door, and a car. Side hanger roller mounting plate and a plurality of car side hanger rollers mounted on the car side hanger roller mounting plate so as to be rotatable around a horizontal axis at predetermined intervals in the horizontal direction, and the plurality of car side hanger rollers are mounted on the car side door rail. The car-side hanger roller mounting plate is attached to the lower side of the car door so that the car can run, and the car-side door hanger device is engaged with the upper side of the car door to prevent the car door from collapsing. A device, a landing side door rail extending in the opening / closing direction of the landing door at the lower end side of the landing floor, a landing side hanger roller mounting plate, and a horizontal direction on the landing side hanger roller mounting plate. Has a plurality of landing-side hanger rollers mounted rotatably around a horizontal axis at predetermined intervals, and the landing-side hanger roller mounting plate allows the landing-side hanger rollers to travel on the landing-side door rails. An elevator comprising: a hall door hanger device attached to a lower side of a door; and a hall door fall prevention device that engages with an upper side of the hall door to prevent the hall door from collapsing. 2. At least one of a car door fall prevention device and a landing door fall prevention device is provided with a plurality of door shoes standing upright at the upper end of the door and extending in the opening / closing direction of the door above the doorway. 2. The elevator according to claim 1, further comprising: a door shoe guide groove that accommodates the plurality of door shoes and guides the movement of the plurality of door shoes. 3. An upper mounting plate to which a hanger roller is mounted, at least one of a car-side hanger roller mounting plate and a landing-side hanger roller mounting plate, and a lower mounting plate rotatably mounted to the upper mounting plate, A fixing plate that is detachably attached across the upper mounting plate and the lower mounting plate and that integrally fixes the upper mounting plate and the lower mounting plate when mounted. The elevator according to claim 1, which is characterized in that: