JP2005022768A - Door device of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely cover in a clearance of a lower end part of a door body with a door shut, while keeping opening/closing operability of the door body. <P>SOLUTION: A door device casing 2 is provided with a guide rail 9. A movable roller 10 is disposed to a rear face of a door hanger 6 to roll along the guide rail 9 in opening/closing of the door body 4. The lower end part of the door body 4 has a lower part shielding body 12 vertically movable along the door body 4. A connecting rod 14 is connected between the movable roller 10 and the lower part shielding body 12. The guide rail 9 is formed so that the lower shielding body abuts on a landing place 8, when the door has been shut. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator door device having a door main body that opens and closes a landing doorway or a car doorway.
[0002]
[Prior art]
In a conventional elevator landing door device, a shield that shields the gap between the lower end of the landing door and the sill when the door is closed is provided at the lower end of the landing door. The shield is displaced obliquely upward during the door opening operation and is separated from the sill. Further, when the door is closed, it is displaced obliquely downward and contacts the sill when the door is completely closed (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Utility Model Registration No. 3032400 [0004]
[Problems to be solved by the invention]
However, in the structure as described above, it is necessary to strictly adjust and maintain the mounting position of the shield. This is because if the shield comes in contact with the sill before the landing door is completely closed, the landing door will not be fully closed. This is because a gap remains when the valve is fully closed. Therefore, it takes time to install and maintain the shield.
[0005]
The present invention has been made to solve the above-described problems, and more reliably shields the gap at the lower end of the door body when the door is closed while maintaining the opening / closing performance of the door body. The object is to obtain an elevator door device that can be used.
[0006]
[Means for Solving the Problems]
An elevator door device according to the present invention includes a door main body that opens and closes an entrance, a lower shield provided at the lower end of the door main body so as to be movable up and down, a guide rail provided at an upper portion of the entrance, A movable roller that is movably provided and is rolled between the movable roller and the lower shielding body when the door body is opened and closed, and the lower shielding body is connected to the door body together with the movable roller. It has connecting means to move up and down, and the guide rail is configured so that the lower shield comes into contact with the floor of the doorway when the door is closed, and is separated from the floor during the opening and closing operation of the door body It is.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
Embodiment 1 FIG.
FIG. 1 is a rear view (viewed from a hoistway side) showing a state during opening and closing operation of a landing door device for an elevator according to Embodiment 1 of the present invention, and FIG. 2 shows a door closed state of the landing door device of FIG. FIG. 3 is an enlarged view showing a main part of FIG.
[0008]
In the figure, a door device housing 2 is fixed above the hall entrance 1. A door rail 3 extending along the entrance direction of the hall entrance 1 is fixed to the door device housing 2. The hall entrance 1 is opened and closed by a pair of door bodies 4. Opening and closing of the door body 4 is guided by the door rail 3.
[0009]
Each door body 4 has a door panel 5, a door hanger 6 fixed to the upper end of the door panel 5, and a plurality of hanger rollers 7 provided on the door hanger 6 and rolled along the door rail 3. The door body 4 is opened and closed in conjunction with the opening and closing of the car door by the driving force of the door motor mounted on the car.
[0010]
A plurality of door legs (not shown) are attached to the lower end of each door body 4. A landing threshold 8 is fixed to the floor of the landing entrance 1. The landing threshold 8 is provided with a threshold groove into which a door leg is inserted. The sill groove extends along the entrance direction of the hall entrance 1 and guides the lower end of the door body 4 during opening and closing operations.
[0011]
A guide rail 9 extending in parallel with the door rail 3 is provided in the door device housing 2 located at the upper part of the hall entrance 1. The guide rail 9 has a horizontal low-position guide surface 9a located in the center of the entrance / exit 1 and a horizontal high-position guide surface 9b adjacent to both sides (door pocket side) of the low-position guide surface 9a. ing. The high position guide surface 9b is provided at a position higher than the low position guide surface 9a. Between the low position guide surface 9a and the high position guide surface 9b, a right-angled step portion 9c is provided.
[0012]
On the back surface of each door hanger 6 (the surface opposite to the hanger roller 7), a movable roller 10 is provided that rolls along the guide rail 9 when the door body 4 is opened and closed. Each movable roller 10 can move up and down with respect to the door body 4 in accordance with the shape of the guide rail 9. A roller guide portion 11 (not shown in FIG. 3) for guiding the vertical movement of the movable roller 10 is provided on the back surface of each door hanger 6.
[0013]
The movable roller 10 contacts the low position guide surface 9a when the door is closed. When the door is not closed, the movable roller 10 is in contact with the high position guide surface 9b. The difference in height between the low position guide surface 9a and the high position guide surface 9b (the height of the step 9c) is substantially equal to the radius of the movable roller 10.
[0014]
A lower shield 12 that can move up and down with respect to the door body 4 is provided at the lower end of each door body 4. The lower shield 12 abuts on the upper surface of the landing sill 8 when the door is closed, and shields the gap between the lower end of the door body 4 and the landing sill 8. The lower shield 12 extends along the width direction of the door body 4 and is provided over the entire width direction of the door body 4. Further, an elastic body such as rubber is provided on at least a contact surface of the lower shield 12 with the landing threshold 8.
[0015]
A shield guide portion 13 (not shown in FIG. 3) for guiding the vertical movement of the lower shield 12 is provided on the back surface of the lower end portion of each door body 4. A connecting rod 14 is connected between the movable roller 10 and the lower shield 12 as connecting means for moving the lower shield 12 up and down with the movable roller 10 relative to the door body 4.
[0016]
The low-position guide surface 9a of the guide rail 9 is formed so that the lower shield 12 abuts on the landing sill 8 when the door is closed. The high position guide surface 9b is formed so that the lower shield 12 is separated from the landing sill 8 when the door is not in the closed state.
[0017]
Next, the operation will be described. In the door-closed state, the movable roller 10 is located on the low position guide surface 9 a and the lower shield 12 is in contact with the upper surface of the landing sill 8. Thereby, the clearance gap between the lower end part of the door main body 4 and the landing threshold 8 is shielded.
[0018]
When the door opening operation is started from this state, the movable roller 10 rides on the high position guide surface 9b and rolls on the high position guide surface 9b. For this reason, the lower shield 12 is separated from the landing threshold 8 during the door opening operation and in the door open state.
[0019]
When the door closing operation is started from the door open state, the movable roller 10 is rolled on the high position guide surface 9b. As soon as the door body 4 reaches the fully closed position, the movable roller 10 rotates around the corner of the step 9c and is dropped onto the low position guide surface 9a. Thereby, the lower shield 12 is also lowered until it comes into contact with the landing threshold 8. Accordingly, the lower shield 12 is separated from the landing threshold 8 even during the door closing operation.
[0020]
In such a landing door device, the lower shield 12 shields the gap between the lower end of the door body 4 and the landing sill 8 when the door is closed, and the lower shield 12 is opened from the landing sill 8 at other times. Since it separates, the clearance gap of the lower end part of the door main body 4 can be more reliably shielded in the door closed state, maintaining the opening / closing operation performance of the door main body 4. Therefore, smoke insulation and sound insulation can be improved. Further, the light shielding property can be improved.
[0021]
Moreover, since the lower shield 12 can be configured to be small and light, noise when the lower shield 12 contacts the landing sill 8 can be suppressed to a low level.
Furthermore, since the contact surface of the lower shield 12 with the landing sill 8 is made of an elastic body, noise when the lower shield 12 comes into contact with the landing sill 8 can be further reduced, and smoke shielding properties can be further improved. Can do.
[0022]
In addition, you may provide a buffer material in at least any one of the outer peripheral part of the movable roller 10, and the low position guide surface 9a, and this can reduce the noise at the time of the movable roller 10 falling on the low position guide surface 9a. it can.
Further, it is desirable that the connecting rod 14 is configured so that the interval between the movable roller 10 and the lower shield 12 can be adjusted.
[0023]
Embodiment 2. FIG.
Next, FIG. 4 is a rear view showing a landing door device for an elevator according to Embodiment 2 of the present invention. In the second embodiment, the corner of the step 9c of the guide rail 9 is rounded with an R shape. Other configurations are the same as those in the first embodiment.
[0024]
In this way, by rounding the corner of the step portion 9c, the movement of the movable roller 10 between the high position guide surface 9b and the low position guide surface 9a becomes smooth, and the movable roller 10 moves to the step portion 9c. The impact when moving up and down is reduced. Thereby, noise can be further reduced and the life of the movable roller 10 can be extended.
[0025]
In Embodiment 2, the corner portion of the step portion 9c is rounded. However, an inclined surface may be provided at the corner portion by performing C chamfering, which also makes the movement of the movable roller 10 smooth. can do.
[0026]
Embodiment 3 FIG.
Next, FIG. 5 is a rear view showing a landing door apparatus for an elevator according to Embodiment 3 of the present invention. In the figure, the high position guide surface 9b is inclined so as to become lower in the door closing direction. Other configurations are the same as those in the first embodiment.
[0027]
In such a landing door device, a force for rolling the movable roller 10 in the door closing direction is generated by the weight of the lower shield 12 and the connecting rod 14. Thereby, the running resistance generated by the rolling resistance of the movable roller 10 during the door closing operation can be offset, and the door closing operation can be performed smoothly. It is also possible to use this force as a closing force for a landing door.
[0028]
Embodiment 4 FIG.
Next, FIG. 6 is a rear view showing a landing door apparatus for an elevator according to Embodiment 4 of the present invention. In the figure, a connecting rod 15 is connected between the movable roller 10 and the lower shield 12 as connecting means for moving the lower shield 12 up and down with the movable roller 10 relative to the door body 4. The connecting rod 15 is bent and arranged so as to avoid the central portion in the width direction of the door body 4 at the central portion in the vertical direction of the door body 4. Specifically, the intermediate portion of the connecting rod 15 is disposed along the door closing side end portion of the door panel 5. Other configurations are the same as those in the first embodiment.
[0029]
Thus, by using the connecting rod 15 having a bent shape, a glass window or a reinforcing member can be arranged at the center of the door body 4, and the connecting rod 15 may become an obstacle. Absent.
[0030]
Embodiment 5 FIG.
Next, FIG. 7 is a rear view showing a landing door apparatus for an elevator according to Embodiment 5 of the present invention. In the figure, a connecting rope 16 is connected between the movable roller 10 and the lower shield 12 as connecting means for moving the lower shield 12 up and down with the movable roller 10 relative to the door body 4.
[0031]
The connecting rope 16 is bent and arranged so as to avoid the central portion in the width direction of the door body 4 at the central portion in the vertical direction of the door body 4. Specifically, the intermediate portion of the connection rope 16 is disposed along the door closing side end portion of the door panel 5. A plurality of rotatable guide rollers 17 a to 17 d for bending the connecting rope 16 are provided on the back of the door body 4. Other configurations are the same as those in the first embodiment.
[0032]
Thus, by using the connection rope 16 as the connection means, the distance between the movable roller 10 and the lower shield 12 can be easily adjusted, and the installation error of the door body 4 can be easily dealt with. Moreover, the weight of the landing door can be suppressed. Furthermore, since the connecting rope 16 is bent and arranged, a glass window or a reinforcing member can be arranged in the central portion of the door body 4, and the connecting rope 16 does not get in the way.
[0033]
In the above example, the center opening type door device is shown, but the present invention can also be applied to a single opening type door device. Further, the number of door bodies is not limited to two.
In the above example, the landing door device is shown. However, the present invention can also be applied to a car door device, and the light shielding property and smoke shielding property between the car room and the outside can be improved.
[0034]
【The invention's effect】
As described above, the elevator door device of the present invention is provided with a guide rail at the upper part of the entrance and exit, and the movable roller that rolls along the guide rail when the door body is opened and closed can move up and down on the door body. And connecting means for moving the lower shield vertically with respect to the door body together with the movable roller is connected between the movable roller and the lower shield, and the guide rail is the floor of the doorway when the lower shield is in the door-closed state. The door body is opened and closed while the door body is opening and closing, so that the door body can be opened and closed while maintaining the door body opening and closing performance. Can be shielded.
[Brief description of the drawings]
FIG. 1 is a rear view showing a state during an opening / closing operation of an elevator hall door device according to Embodiment 1 of the present invention;
2 is a rear view showing a door closing state of the landing door device of FIG. 1. FIG.
FIG. 3 is an enlarged view showing a main part of FIG. 2;
FIG. 4 is a rear view showing an elevator landing door device according to Embodiment 2 of the present invention;
FIG. 5 is a rear view showing an elevator hall door device according to Embodiment 3 of the present invention;
FIG. 6 is a rear view showing an elevator landing door device according to Embodiment 4 of the present invention;
FIG. 7 is a rear view showing an elevator landing door device according to Embodiment 5 of the present invention;
[Explanation of symbols]
1 landing doorway, 4 door body, 9 guide rail, 9a low position guide surface, 9b high position guide surface, 9c stepped portion, 10 movable roller, 12 lower shield, 14 connecting rod (connecting means).

Claims (5)

Door body that opens and closes the doorway,
A lower shield provided at the lower end of the door body so as to be movable up and down;
A guide rail provided at the upper part of the doorway,
A movable roller that is provided on the door body so as to be movable up and down and rolls along the guide rail when the door body is opened and closed, and is connected between the movable roller and the lower shield, Connecting means for moving the body up and down with the movable roller relative to the door body, and the guide rail is in contact with the floor of the doorway when the door is closed, and the door body is opened and closed. The elevator door device is configured to be separated from the floor portion during operation. The guide rail includes a low position guide surface that is in contact with the movable roller when the door is closed, and a high position guide surface that is adjacent to the door pocket side of the low position guide surface and is higher than the low position guide surface. And a step portion is provided between the low position guide surface and the high position guide surface, and a corner portion of the step portion is rounded. Item 2. The elevator door device according to Item 1. The guide rail includes a low position guide surface that is in contact with the movable roller when the door is closed, and a high position guide surface that is adjacent to the door pocket side of the low position guide surface and is higher than the low position guide surface. 3. The elevator door device according to claim 1, wherein the high position guide surface is inclined so as to be lowered toward a door closing direction. 4. The said connection means is bent and arrange | positioned so that the center part of the width direction of the said door main body may be avoided in the center part of the up-down direction of the said door main body. The elevator door device described in 1. The elevator door device according to any one of claims 1 to 4, wherein the connection means is a connection rope.

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