JP2003321179A - Door guide mechanism of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid a foreign matter from entering inside of a guide groove. <P>SOLUTION: This mechanism comprises a guide groove formed at a threshold of a ride-on or -off opening of an elevator and formed in a manner to open on an outer circumference except for a top face of the threshold; and a guide shoe installed at a bottom of a door opening/closing the opening and slidably engaged with the guide groove. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door guide mechanism for an elevator that guides opening and closing of a door by sliding a guide shoe provided at a lower portion of the door in a guide groove provided on a sill.

[0002]

2. Description of the Related Art An elevator is provided with a boarding / alighting opening for passengers to get in and out of a car and a landing, respectively. It is opened and closed by the door. Doors for these elevators generally employ a door guide mechanism for guiding the opening and closing of the door so that the opening and closing of the door can be smoothly performed. An example of an elevator door device that employs this door guide mechanism is shown in FIG.

As shown in FIG. 4, an elevator door device 1
In 00, sills 103a and 103b are fixed by brackets 104 at positions below the entrances and exits of the landing 101 and the car 102.
A landing door 105a and a car door 105b are arranged on each 103b. The landing doors 105a and the car doors 105b are provided with hanging support parts (not shown) provided on the upper portions of the back surfaces of the doors 105a and the car doors 105b, respectively. Is supported so that it can be opened and closed. The car door 105b has a motor 107 whose upper rear surface is installed above the car 102 via an arm 106.
And is opened and closed by the driving force of the motor 107.

The landing door 105a is the car door 1
The engaged portion 109 to be engaged with the engaging portion 108 provided on the arm portion 106 of 05b is provided on the upper back surface,
The engaged portion 109 is engaged with the engaging portion 108 of the car door 105b when the car 102 stops at the destination floor, and the car door 1 is driven by the driving force of the motor 107 in that state.
When 05b is opened / closed, it is opened / closed in conjunction with this.

A door guide mechanism 11 for guiding opening and closing of the landing door 105a and the car door 105b.
0a and 110b are the sills 103a and 10 of the entrance / exit openings.
3b, and a guide shoe 112 that is provided below the landing door 105a and the car door 105b that open and close the opening / closing opening and that is slidably engaged with the guide groove 111.

The guide groove 111 is formed on the thresholds 103a and 103a.
The threshold 103 is provided downward from the upper surface of b.
It is formed in a concave shape having an opening on the upper surface of a, 103b.
Further, the guide shoe 112 is provided so as to protrude downward from the lower end surfaces of the landing door 105a and the car door 105b, and the tip end portion 112a is disposed inside the guide groove 111 and engaged therewith. The tip portion 112a of the guide shoe 112 is formed slightly smaller than the guide groove 111 so that the guide shoe 112 can slide in the guide groove 111.

Then, the door guide mechanisms 110a and 110b.
Then, as the landing door 105a and the car door 105b are opened and closed, the tip end portion 112a of the guide shoe 112 slides in the guide groove 111 to guide the opening and closing of the landing door 105a and the car door 105b. There is.

[0008]

However, in the above-mentioned conventional elevator door guide mechanisms 110a and 110b, the guide groove 111 is formed in a concave shape that is open on the upper surfaces of the sills 103a and 103b.
It is easy for foreign matter to enter inside 1. When foreign matter or the like enters the guide groove 111, the tip end 112a of the guide shoe 112 that slides in the guide groove 111 along with the landing door 105a and the car door 105b when the landing door 105a and the car door 105b are opened and closed, The slide may be restricted by hitting a foreign substance in the guide groove 111.

In this case, the landing door 105a and the car door 105b cannot be opened or closed any more, and there is a problem that they cannot be fully opened or closed. As a result, there is a problem that a large load is applied to the motor 107 and seizure occurs, or the car 102 cannot be operated unless the hall door 105a and the car door 105b are fully closed, and the elevator cannot travel.

Further, when removing the foreign matter or the like that has entered the guide groove 111 so as not to cause the above-mentioned problems, there is a problem in that the work is performed by an operator, which requires a large amount of human labor.

Therefore, the present invention has been made in consideration of the above-described conventional problems, and an object thereof is to provide an elevator door guide mechanism in which foreign matter or the like is less likely to enter the guide groove.

[0012]

In order to achieve the above object, the present invention is a guide provided on a sill of an opening / closing opening of an elevator, the guide being formed so as to open on an outer peripheral surface excluding the upper surface of the sill. It is characterized by comprising a groove and a guide shoe which is provided at a lower portion of the door that opens and closes the opening / closing opening and which slidably engages the guide groove.

In the present invention thus constructed, since the guide groove is opened on the outer peripheral surface except the upper surface of the sill, it is difficult for foreign matter to enter the guide groove. Therefore, when guiding the opening and closing of the door, it is possible to prevent the guide shoe from being restricted by the foreign matter or the like from sliding in the guide groove.

Further, since it is difficult for foreign matter to enter the guide groove, there is an effect that human labor such as work for removing the foreign matter entered in the guide groove can be reduced.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The details of an elevator door guide mechanism according to the present invention will be described below with reference to the embodiments shown in the drawings. FIG. 1 is a cross-sectional view of a schematic configuration showing a door device adopting a door guide mechanism for an elevator according to a first embodiment of the present invention, FIG. 2 is a perspective view of the door guide mechanism shown in FIG. 1, and FIG. FIG. 2 is a plan view of a sill used in the door guide mechanism shown in FIG. 1, viewed from below.

The elevator door guide mechanism 1 of this embodiment
As shown in FIGS. 1 to 3, in the door device 2 in which the a and 1b are adopted, the sills 5a and 5b are fixed at the positions below the openings for getting on and off the landing 3 and the car 4, respectively. A landing door 6a and a car door 6b are arranged on 5a and 5b, respectively. As shown in FIG. 1, the sills 5a and 5b are provided so as to project from the end surfaces of the landing 3 and the car 4, and have a gap of a predetermined pitch so as not to buffer each other when the car 4 moves up and down. The side surfaces (outer peripheral surfaces) 7 and 7 face each other. Also, the thresholds 5a, 5
In b, the upper surfaces 8 and 8 are substantially flush with the floor surfaces of the landing 3 and the car 4, respectively. And the thresholds 5a and 5b
Is a guide groove 1 which will be described later, as shown in FIGS.
Brackets 10a, 10b, 10c, and 10d having an inverted L-shaped cross section are attached between the lower surfaces (outer peripheral surfaces) 9 and 9 and the end surfaces of the landing 3 and the car 4 by using bolts or the like not shown so as to avoid 5, 15 It is fixed by being.

As shown in FIG. 1, the landing door 6a and the car door 6b hang a door hanger (not shown) provided on the upper back surface thereof on a hanger rail (not shown) provided at the landing 3 and the car 4, respectively. As a result, each of the boarding / alighting openings is supported so that it can be opened and closed. Car door 6b
The upper part of the rear surface is connected to the motor 12 installed on the upper part of the car 4 via the arm portion 11, and is opened and closed by the driving force of the motor 12.

Further, the landing door 6a has an engaged portion 14 provided on the upper rear surface thereof to be engaged with an engaging portion 13 provided on the arm portion 11 of the car door 6b, so that the car 4 can land on the floor. When engaged, the engaged portion 14 is engaged with the engaging portion 13 of the car door 6b.
When the car door 6b is opened and closed by the driving force of the motor 12 in that state, the car door 6b is opened and closed in conjunction with this. The landing doors 6a and the car doors 6b are formed in a left-right pair, and the opening and closing of the boarding / alighting openings are performed by relatively approaching and separating the boarding openings.

Door guide mechanisms 1a and 1b for guiding opening and closing of the landing door 6a and the car door 6b.
Are provided on the sills 5a, 5b and
The guide grooves 15 and 15 formed so as to open on the outer peripheral surface excluding the upper surface of b, and the guide shoes provided at the lower portions of the landing door 6a and the car door 6b and slidably engaged with the guide grooves 15 and 15. It consists of 16, 16. In this embodiment, since the door guide mechanisms 1a and 1b are symmetrically configured, the door guide mechanism 1a on the side of the landing door 6a will be described, and the same reference numerals will be used for the door guide mechanism 1b on the side of the car door 6b. Attach.

As shown in FIGS. 1 to 3, the guide grooves 15 are provided on the left and right sides of the lower surface 9 of the sill 5a so as to correspond to the pair of left and right car doors 6b. As shown in FIGS. 1 and 2, the guide groove 15 is formed in a concave shape that opens upward from the lower surface 9 of the sill 5a and opens at the lower surface 9 of the sill 5a. In addition,
The guide groove 15 may be formed obliquely upward from the lower surface 9, that is, it may be formed upward.

On the other hand, the guide shoe 16 is attached to the lower part of the back surface of the car door 6b by bolts (not shown) or the like, and the sill 5a arranged below and the side faces 7 and 7 of the sill 5b facing the sill 5a. Through the tip 16a
Is formed around the lower side of the threshold 5a. Then, the guide shoe 16 is engaged with the guide groove 15 by inserting the tip portion 16a into the guide groove 15 that opens at the lower surface 9 of the threshold 5a. Therefore, the guide shoe 1
6, the tip portion 16a is engaged with the guide groove 15 that opens on the lower surface 9 of the sill 5a via the gap between the sills 5a and 5b.

The tip portion 16a of the guide shoe 16 is formed slightly smaller than the guide groove 15 so that the guide shoe 16 can slide in the guide groove 15. In addition, the guide shoe 16 has a slight gap between the sill 5a and the sill 5a so as not to buffer the sill 5a, and between the side faces 7 and 7 of the sills 5a and 5b facing each other, the guide shoe 16 on the side of the car door 6b is provided. It does not interfere with the guide shoe 16 of the door guide mechanism 1b.

In such a door guide mechanism 1a, 1b,
As the landing door 6a and the car door 6b are opened and closed, the leading end 16a of the guide shoe 16 slides in the guide groove 15 to guide the opening and closing of the landing door 6a and the car door 6b.

In the door guide mechanisms 1a and 1b of this embodiment, since the guide grooves 15 are opened on the lower surfaces 9 and 9 of the thresholds 5a and 5b, it is difficult for foreign matter to enter the guide grooves 15. . As a result, the door guide mechanism 1
With a and 1b, when guiding the opening and closing of the landing door 6a and the car door 6b, it is possible to prevent the slide of the tip end portion 16a of the guide shoe 16 in the guide groove 15 from being restricted by a foreign substance or the like. It is possible to prevent a problem that the car door 6b cannot be fully opened or closed.

Therefore, the landing door 6a and the car door 6b can be reliably opened and closed, and a large load is applied to the motor 12 to burn the landing door 6a and the landing door 6a.
It is possible to prevent the elevator from being disabled due to the fact that the car door 6b is not fully closed.

Further, in the door guide mechanisms 1a and 1b, since foreign matter and the like are less likely to enter the guide groove 15, human labor such as work for removing the foreign matter and the like entering the guide groove 15 is reduced. be able to.

Further, the door guide mechanisms 1a, 1 of the present embodiment.
In b, since the guide groove 15 is opened on the lower surfaces 9 and 9 of the sills 5a and 5b, for example, compared to the case where the guide groove is formed so as to open on the side surface of the sill, the inside of the guide groove 15 is more It is difficult for foreign matter to enter.

The door guide mechanisms 1a and 1b are provided upward from the lower surfaces 9 and 9 of the sills 5a and 5b, and are formed in a concave shape that opens at the lower surfaces 9 and 9, so that the guide groove 15 is formed. Even if foreign matter gets inside,
It is possible to prevent the foreign matter and the like from falling downward from the guide groove 15 and staying in the guide groove 15. Therefore, with the door guide mechanisms 1a and 1b, when guiding the opening and closing of the landing door 6a and the car door 6b, it is possible to more reliably prevent a problem that the landing door 6a and the car door 6b cannot be fully opened or closed.

Further, the door guide mechanisms 1a, 1 of the present embodiment.
In b, the tip portions 16a, 16 of the guide shoes 16, 16 are
a through the sills 5a and 5b through the sill 5a and 5b.
It is engaged with a guide groove 15 that opens at the lower surfaces 9, 9 of a and 5b. For this reason, the tip portion 16 of the guide shoe 16 is inserted into the guide groove 15 that is opened on the lower surfaces 9 and 9 of the sills 5a and 5b by using the gap between the sills 5a and 5b that has been conventionally used.
It is possible to easily realize the door guide mechanisms 1a and 1b in which a is engaged.

Although the embodiment of the elevator door guide mechanism according to the present invention has been described above, the present invention is not limited to this, and various design changes associated with the constituent elements can be made. For example, in the above-described embodiment, the guide groove 1 is formed so as to open on the lower surfaces 9, 9 of the thresholds 5a, 5b.
Although 5 is provided, a guide groove may be provided so as to open on the side surface of the sill. In this case, it is preferable that the guide groove is formed so as to open at the lower part of the side surface and is provided obliquely upward from the opening, but it may be provided substantially horizontally with respect to the opening or may be opened at the upper part of the side surface. It may be formed in a rectangular shape and provided obliquely downward from the opening.

[0031]

As described above, according to the present invention, since the guide groove is opened on the outer peripheral surface excluding the upper surface of the sill,
It is difficult for foreign matter to enter the guide groove. Therefore, when guiding the opening / closing of the door, it is possible to prevent the guide shoe from being restricted from sliding in the guide groove by a foreign substance or the like, and to prevent a problem that the door cannot be fully opened or fully closed.

Further, since it is difficult for foreign matter to enter the guide groove, there is an effect that human labor such as work for removing the foreign matter entered in the guide groove can be reduced.

[Brief description of drawings]

FIG. 1 is a sectional view of a schematic configuration showing a door device in which an elevator door guide mechanism of a first embodiment according to the present invention is adopted.

FIG. 2 is a perspective view of the door guide mechanism shown in FIG.

FIG. 3 is a plan view of a sill on the side of a car used in the door guide mechanism shown in FIG. 1, viewed from below.

FIG. 4 is a cross-sectional view of a schematic configuration showing a door device in which a conventional elevator door guide mechanism is adopted.

[Explanation of symbols]

1a, 1b Door guide mechanism 3 car 4 platform 5a, 5b threshold 6a car door (door) 6b Platform door (door) 7 Sides (outer peripheral surface) 8 upper surface 9 Lower surface (outer peripheral surface) 15 Guide groove 16 Guide shoe

Claims (4)

[Claims] 1. A guide groove provided on a sill of an elevator entrance / exit opening and formed so as to open on an outer peripheral surface except an upper surface of the sill, and a lower portion of a door for opening / closing the entrance / exit opening. A door guide mechanism for an elevator, comprising: a guide shoe that is provided and slidably engages with the guide groove. 2. The elevator door guide mechanism according to claim 1, wherein the guide groove is provided from an opening toward an upper side. 3. The elevator door guide mechanism according to claim 1, wherein the guide groove is open at a lower surface of the sill. 4. The elevator door guide mechanism according to any one of claims 1 to 3, wherein the guide shoe has a tip end portion that extends through the sill between the landing side and the car side. An elevator door guide mechanism characterized by being engaged with a guide groove.