KR100708508B1 - Door device of elevator - Google Patents

Abstract

In the door apparatus of an elevator, the rocking member which oscillates around a rocking shaft in conjunction with the opening / closing operation | movement of a door main body is mounted in the door main body. A connection rope is connected between the fixed part fixed to the boarding gate entrance and the rocking member. At the lower end of the door main body, a movable shield that is movable up and down is provided. The movable shield is connected to the swinging member, and contacts the bottom of the entrance and exit to shield the gap between the lower end and the bottom of the door main body. In the door closed state, the movable shield is in contact with the bottom, and the swinging member is rocked so that the movable shield is separated from the bottom during the door opening operation.

Description

Door device of elevator {DOOR DEVICE OF ELEVATOR}             

The present invention relates to an elevator door apparatus having a door body for opening and closing a boarding gate entrance or a car entrance.

For example, in the conventional elevator disclosed in Japanese Patent Application Laid-Open No. 1996-67486, a lower packing contacting the threshold groove is provided at the lower end of the door of the boarding gate, so that a structure for shielding the gap between the lower end of the boarding door and the boarding threshold is provided. Is disclosed. However, in such a structure, since the lower packing slides in contact with the threshold groove at the time of opening and closing the door of the boarding gate, there is a fear that a sliding noise is generated. In addition, since the worn lower packing needs to be frequently replaced, the cost increases and the maintenance becomes difficult.

In addition, in the conventional elevator disclosed in Japanese Utility Model Registration No. 3032400, a shielding body is disclosed which is displaced obliquely downward when the door is closed to shield the gap between the lower end of the door of the boarding gate and the threshold. However, in such a structure, it was necessary to strictly adjust and hold the mounting position of the shield. This means that if the shield contacts the threshold before the door of the boarding gate is completely closed, the door will not reach full closure of the boarding gate, and if the door of the boarding gate is completely closed before the shield touches the threshold, This leaves a gap. Therefore, the mounting and repair of the shield becomes difficult.

Summary of the Invention

The present invention has been made to solve the above problems, and an object of the present invention is to obtain an elevator door apparatus that can more reliably shield the gap between the lower end portion of the door body in a closed state while maintaining the opening / closing operation performance of the door body. It is done.

An elevator door apparatus according to the present invention includes a rocking member mounted to a door main body for opening and closing an entrance and a door main body, and swinging about a swing shaft in association with the opening and closing operation of the door main body, and a fixed part and swing fixed to the boarding gate entrance. The movable rope is connected to the lower end of the door body and the connecting rope connected between the members so as to be movable up and down, and is connected to the swinging member, and is movable to shield the gap between the lower end of the door body and the bottom part by contacting the bottom part of the doorway. The shield is provided, the movable shield is in contact with the bottom in the door closed state, and the swinging member is rocked so that the movable shield is separated from the bottom during the door opening operation.

BRIEF DESCRIPTION OF THE DRAWINGS The rear view which shows the door closed state of the boarding point door apparatus of the elevator by Embodiment 1 of this invention.

FIG. 2 is a rear view illustrating a door opening state of the boarding gate door device of FIG. 1;

3 is an enlarged rear view of the main portion of the boarding gate door device of FIG. 1;

4 is a cross-sectional view taken along the line IV-IV of FIG.

FIG. 5 is an enlarged rear view of the main portion of the boarding gate door device of FIG. 2;

6 is a cross-sectional view taken along the line VI-VI of FIG. 5;

7 is a rear view showing the door open state of the boarding gate door device of the elevator according to the second embodiment of the present invention;

8 is a rear view showing the door closed state of the boarding gate door device of the elevator according to the third embodiment of the present invention;

FIG. 9 is a rear view illustrating a door opening state of the boarding gate door device of FIG. 8.

EMBODIMENT OF THE INVENTION Hereinafter, preferred embodiment of this invention is described with reference to drawings.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a rear view showing the door closing state of a boarding gate door device of an elevator according to Embodiment 1 of the present invention, and Fig. 2 shows a door opening state of a boarding door door device of Fig. 1. 3 is a rear view illustrating an enlarged view of the main part of the boarding gate door device of FIG. 1, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIG. 5 is a main point of the boarding door device of FIG. 2. It is a rear view which expands and shows a part, and FIG. 6 is sectional drawing along the VI-VI line of FIG.

In the figure, the door device housing 1 as a fixing part is fixed above the boarding gate entrance 20. The door rail 2 which extends along the front width direction of the boarding gate entrance 20 is being fixed to the door apparatus housing 1. The boarding gate entrance 20 is opened and closed by a pair of door bodies 3. Opening and closing of the door body 3 is guided by the door rail 2.

The door hanger 4 which hangs the door main body 3 from the door rail 2 is fixed to the upper end part of each door main body 3. Each door hanger 4 is provided with a plurality of hanger rollers 5 that rotate along the door rail 2. The door body 3 is opened and closed in conjunction with opening and closing of the door of the car by the driving force of the door motor mounted on the car.

Legs 6 of a plurality of doors are attached to the lower end of each door body 3. The boarding gate threshold 7 is fixed to the bottom of the boarding gate entrance. The boarding gate threshold 7 is provided with a threshold groove 7a into which the door leg 6 is inserted. The threshold groove 7a extends along the front width direction of the boarding gate entrance and exit 20, and guides the lower end of the door body 3 at the time of opening and closing.

On the back surface of each door main body 3, a swing lever 9 as a swing member capable of swinging around the swing shaft 8 is mounted. The swing lever 9 swings in conjunction with the opening and closing operation of the door body 3. In addition, the swing lever 9 has first and second connecting portions 9a and 9b. The 1st and 2nd connection parts 9a and 9b are arrange | positioned on the opposite side with respect to the oscillation shaft 8. The distance from the swing shaft 8 to the first connecting portion 9a is larger than the distance from the swing shaft 8 to the second connecting portion 9b.

The connecting rope 11 is connected between the 1st connection part 9a of each rocking lever 9, and the center part of the front width direction of the door apparatus housing 1. As shown in FIG. The door hanger 4 and the door main body 3 are provided with a plurality of rotatable connecting rope guide rollers 13a to 13c for guiding the connecting rope 11 to the swing lever 9.

The movable shield 14 which is movable up and down is provided in the lower end part of each door main body 3. The movable shield 14 contacts the boarding gate threshold 7 when the door is in the closed state to shield the gap between the lower end of the door main body 3 and the top surface of the boarding gate threshold 7. In addition, the movable shield 14 contacts / separates from the boarding point threshold 7 on the boarding point side rather than the threshold groove 7a.

In addition, the movable shield 14 is fixed to the lower end of the shield base 15 and the shield base 15, and has a shield member 16 which contacts / disconnects to the boarding gate threshold 7. An engaging portion 15a is provided at the upper end of the shield base 15. The shield member 16 extends over the whole width direction of the door main body 3. In addition, the shielding member 16 is comprised by the material with high airtightness, such as rubber | gum, for example.

Below the swing lever 9 on the back of each door main body 3, a pair of hook guides 17 extending along an up-down direction are mounted in parallel with each other. The hook 18 which engages with the engaging part 15a is arrange | positioned between the hook guides 17. As shown in FIG. Hook rollers 19 which rotate along the hook guide 17 are provided at both ends of each hook 18. The hook 18 is guided by the hook guide 17, and is movable up and down.

A short rope 21 is connected between the second connecting portion 9b of the swing lever 9 and the hook 18. Above the swing lever 9 on the back of the door main body 3, the rotatable direction change roller 22 in which the short rope 21 was wound is provided. The direction change roller 22 reverses the direction of the short rope 21. In addition, a plurality of rotatable short rope guide rollers 23a and 23b for guiding the short rope 21 from the direction change roller 22 to the hook 18 are provided on the rear surface of the door main body 3.

At the end of the swing lever 9 on the side of the first connecting portion 9a, a weight 10 as a pressurizing means for pressing the swing lever 9 in the direction in which the movable shield 14 contacts the boarding threshold 7 is mounted. It is. The connection rope 11 and the connection rope guide rollers 13a to 13c are arranged so that the door main body 3 is pressed in the door closing direction by the weight 10.

Next, the operation will be described. In the door closed state, the swing lever 9 is maintained in the state of FIG. 1, and tension is applied to the connecting rope 11 by gravity acting on the weight 10. Moreover, the shielding member 16 is in contact with the upper surface of the boarding point threshold 7, and the clearance gap between the lower end part of the door main body 3 and the upper surface of the boarding point threshold 7 is shielded by the movable shielding body 14. As shown in FIG. This prevents the smoke generated by the fire from entering into the hoistway from the gap between the lower end of the door main body 3 and the upper surface of the boarding gate threshold 7.

Further, when the door opening operation is started, the door body 3 is moved in the door opening direction in response to the pressing force on the door body 3 by the weight 10. As a result, the swing lever 9 swings in the direction in which the first connecting portion 9a and the weight 10 are displaced upward. By vibrating the swing lever 9, the movable shield 14 is lifted up and separated from the boarding gate threshold 7. In addition, during the door closing operation, the movable shield 14 gradually descends, and the shielding member 16 contacts the boarding gate threshold 7 at the completion of the door closing operation. Accordingly, the movable shield 14 does not slide on the boarding gate threshold 7 during the opening and closing operation, thereby preventing wear and noise of the shielding member 16.

In such a boarding gate door apparatus, since the movable shield 14 is in contact with the boarding gate threshold 7 in the door closed state, and the movable shield 14 is not in contact with the boarding gate threshold 7 during the opening and closing operation, the door body The gap between the lower end of the door main body 3 can be shielded more reliably in the door closed state, maintaining the opening / closing operation performance of (3). As a result, the incombustibility and the sound insulation can be improved.

In addition, the connecting rope 11 is connected between the swing lever 9 and the door device housing 1 to swing the swing lever 9 in conjunction with the opening and closing of the door main body 3, and the swing lever 9 Since the movable shield 14 is brought into contact with and separated from the boarding gate threshold 7 due to the swing, the configuration can be simplified, and the mounting and adjustment can be facilitated.

In addition, since the movable shield 14 is in contact with / isolated from the boarding point threshold 7 on the boarding point side rather than the threshold groove 7a, smoke can be prevented from entering the panel of the door main body 3, and the panel is made of smoke. Entering the hoistway side via the inside can also be prevented. In addition, damage to the shielding member 16 can be easily confirmed at the boarding point side, and workability at the time of maintenance can also be improved.

Moreover, since the connection rope guide rollers 13a-13c which guide the connection rope 11 to the rocking lever 9 are provided in the door hanger 4 and the door main body 3, the connection rope 11 differs. Interference with the device can be easily prevented.

In addition, since the distance from the oscillation shaft 8 to the 1st connection part 9a becomes larger than the distance from the oscillation shaft 8 to the 2nd connection part 9b, the stroke of the movable shielding body 14 is made into the door main body 3 Can be made smaller than the open / close stroke, and the arrangement space of the movable shield 14 can be made small.

In addition, since the connection main body 11 is arrange | positioned so that the door main body 3 may be pressed in the door closing direction by the weight 10, it is necessary to provide the means for pressurizing the door main body 3 in the door closing direction separately. No configuration can be simplified.

In addition, since the weight 10 is used as the pressing means, the configuration is simple, and stable pressing force can be generated irrespective of the position of the door main body 3.

Embodiment 2

Next, FIG. 7 is a rear view which shows the door open state of the boarding point door apparatus of the elevator by Embodiment 2 of this invention.

In the figure, a swing lever 31 serving as a swing member capable of swinging around the swing shaft 30 is attached to the rear surface of each door main body 3. The swing lever 31 swings in conjunction with the opening and closing operation of the door body 3. In addition, the swing lever 31 has first and second connecting portions 31a and 31b. The 1st and 2nd connection parts 31a and 31b are arrange | positioned with respect to the oscillation shaft 30 at the same side. The distance from the swing shaft 30 to the first connecting portion 31a is larger than the distance from the swing shaft 30 to the second connecting portion 31b.

The connection rope 11 is connected between the 1st connection part 31a and the center part of the front width direction of the door apparatus housing 1. As shown in FIG. A short rope 21 is connected between the second connecting portion 31b and the hook 18. The back of the door main body 3 is provided with the some rotatable rope guide rollers 32a and 32b which guide the short rope 21 to the hook 18 from the 2nd connection part 31b.

At the end of the swing lever 31 on the side of the first connection portion 31a, a weight 10 as a pressurizing means for pressing the swing lever 9 in the direction in which the movable shield 14 contacts the boarding threshold 7 is mounted. have. The connection rope 11 is arrange | positioned so that the door main body 3 may be pressed by the weight 10 to the door closing direction. The other configuration is the same as that in the first embodiment.

In this manner, even when the first and second connecting portions 31a and 31b are disposed on the same side with respect to the swinging shaft 30, the same effects as those of the first embodiment can be obtained.

In addition, although the weight was used as pressurization means in Embodiment 1 and 2, a pressurization means is not limited to a weight, For example, a torsion spring etc. can also be used.

Moreover, the spring which presses a movable shield on a threshold can also be provided as a pressurizing means between a door main body and a movable shield.

It is also possible to mount a weight on the movable shield.

Moreover, the movable shield can also function as a weight using the own weight of the movable shield.

Embodiment 3

Next, FIG. 8 is a back view which shows the door closed state of the boarding point door apparatus of the elevator by Embodiment 3 of this invention, and FIG. 9 is a back view which shows the door opening state of the boarding door door apparatus of FIG.

In Embodiment 1, although the connection rope 11 was connected to the front width direction center part of the door apparatus housing 1, in Embodiment 3, the connection rope 11 is connected to the front width direction edge part of the door apparatus housing 1, have. For this reason, the door main body 3 is pressed in the door opening direction by the gravity acting on the weight 10. However, in the door closed state, since the door main body 3 is locked in the door closed position, unless the lock is released, the door main body 3 will not automatically open a door.

In addition, in Embodiment 1, since the operation direction of the 2nd connection part 9b and the operation direction of the movable shield 14 were reversed, the direction change roller 22 was used, but in Embodiment 3, the 2nd connection part 9b and Since the operation direction of the movable shield 14 is the same, the direction change roller is unnecessary. The other configuration is the same as that in the first embodiment.

Even with this configuration, since the movable shield 14 is in contact with the boarding gate threshold 7 in the door closed state, and the movable shield 14 is not in contact with the boarding gate threshold 7 during the opening and closing operation, the door main body 3 is While maintaining the opening / closing operation performance, it is possible to more reliably shield the gap between the lower end portion of the door main body 3 in the door closed state. Thereby, a flame retardance and sound insulation can be improved.

In addition, the connecting rope 11 is connected between the swing lever 9 and the door device housing 1 to swing the swing lever 9 in conjunction with the opening and closing of the door main body 3, and the swing lever 9 Since the movable shield 14 is brought into contact with and separated from the boarding gate threshold 7 due to the swing of the slit, the configuration can be simplified and the mounting and adjustment can be facilitated.

In Embodiments 1 to 3, although the swing lever is connected between the movable shield with a short rope, it is also possible to connect with a link member, for example.

In addition, although the boarding gate door apparatus was demonstrated in Embodiment 1 thru | or 3, this invention can be applied also to a car door apparatus, and sound insulation and a flame retardance can be improved. In this case, it is appropriate for the movable shield to contact the bottom portion on the car interior side rather than the car threshold groove.

The present invention can also be applied to a centrally open door device or a partially open door device, and can also be applied to a door device having a plurality of doors, even to a single door device.

Claims (9)

The door body which opens and closes an entrance and exit, A rocking member mounted to the door body and swinging about a swing shaft in association with an opening / closing operation of the door body; A connection rope connected between the fixed portion fixed to the entrance and the swinging member, A movable shield installed at the lower end of the door main body so as to be movable up and down, and connected to the swinging member, and contacting the bottom of the doorway to shield a gap between the lower end of the door main body and the bottom part, In the door closed state, the movable shield is in contact with the bottom portion, and the swinging member is rocked so that the movable shield is separated from the bottom portion during the door opening operation. Door device of the elevator. The method of claim 1, The doorway is a boarding gate entrance, the lower end of the door body is provided with a door bridge, the movable shield is in contact with or separated from the bottom of the boarding gate side than the threshold groove into which the door leg is inserted. Door device of the elevator. The method of claim 1, The doorway is a car doorway, and a door bridge is provided at a lower end of the door body, and the movable shield is in contact with or separated from the bottom of the car interior than the threshold groove into which the door bridge is inserted. Door device of the elevator. The method of claim 1, The door body is provided with a rotatable connecting rope guide roller for guiding the connecting rope to the swinging member. Door device of the elevator. The method of claim 1, The rocking member includes a first connecting portion to which the connecting rope is connected, and a second connecting portion connected to the movable shield, and a distance from the rocking shaft to the first connecting portion extends from the rocking shaft to the second connecting portion. Bigger than the distance Door device of the elevator. The method of claim 1, Further provided with pressing means for pressing the rocking member in the direction in which the movable shield is in contact with the bottom portion Door device of the elevator. The method of claim 6, The connecting rope is arranged such that the door body is pressed in the door closing direction by the pressing means. Door device of the elevator. The method of claim 6, The pressing means is mounted on the swinging member Door device of the elevator. The method of claim 1, The fixing part is a door device housing which is fixed above the doorway and is equipped with a door rail for guiding opening and closing of the door body. Door device of the elevator.

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