JPH08231164A - Elevator hall door system - Google Patents

Abstract

PURPOSE: To provide an elevator hall door system that is able to open a hall door from the inside of a shaftway easily with little force. CONSTITUTION: This door system is equipped with two hook-shaped link parts 6 and 6A attached to the vicinity of a closed end at the upper part of a door 1 free of rotation, a holding part 7 being connected to one end of these link parts 6 and 6A, and hanging down to the vicinity of a lower end of the door 1, and a stopper 8 holding one side of these link parts 6 and 6A horizontally whenever such a force as heading for a direction of opening the door 1 is added to this holding part 7, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator landing door device, and more particularly to an elevator landing door device suitable for opening a landing door from the inside of an elevator tower.

[0002]

2. Description of the Related Art An elevator landing door device has a door rail with a lower end to prevent the door hanging roller from coming off the door rail when foreign matter such as dust gets on the door rail and lifts the door hanging roller that rolls on the upper end of the door rail. An anti-sway roller is attached with a predetermined gap.

Incidentally, this kind of technique is described in Japanese Utility Model Laid-Open No. 61-14.
No. 2772.

[0004]

In order to maintain the performance and quality of an elevator, a specialist engineer performs maintenance work every predetermined period. In this maintenance work, the lowest work from the bottom of the hoistway is performed. When the floor door on the floor is opened by hand, a force is applied to the lower end of the hall door.Therefore, in the hall door device as in the above work technique, the open upper end of the hall door is lifted, and the steady rest roller is connected to the lower end of the door rail. Contact
There was a problem that the landing door could not be opened due to the frictional resistance.

An object of the present invention is to provide an elevator hall door device which can easily open the hall door from inside the hoistway with a small force.

[0006]

To achieve the above object, the present invention is a door suspension roller rotatably mounted on a door suspension plate fixed to the upper end of a door and rolling on the upper end of a door rail. In an elevator landing door apparatus that is guided to open and close in the longitudinal direction of the door rail from a steady rest roller having a gap of a predetermined size at the lower end of the door rail, the elevator landing door apparatus is rotatably mounted near the closed end of the upper portion of the door. F-shaped link portion, a grip portion connected to one end of the link portion and hanging down to near the lower end of the door, and the link when a force in the opening direction of the door is applied to the grip portion. And a stopper for holding one side of the section horizontally.

[0007]

With this structure, when a force is applied in the opening direction of the hall door by holding the grip, the fold-shaped link portion provided on the top of the hall door rotates and hits the stopper. The stoppers absorb the upward force and apply a horizontal force. In this way, the force applied in the opening direction by the grips below the landing door is transmitted to the stopper mounting position above the landing door, so that the steady rest roller does not lift up, so that the inside of the hoistway from It is easier to open, shortens the time required for maintenance work, and is not trapped at the bottom of the hoistway.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a front view of a landing door according to an embodiment of the present invention as viewed from inside the hoistway, and FIG. 2 is a bottom floor landing door according to an embodiment of the present invention as viewed from inside the hoistway. FIG.

In FIG. 1, a door suspension plate 2 is attached to an upper end of a landing door 1, and a door suspension roller 2A rotatably attached to the door suspension plate 2 is placed on an upper end of a door rail 3, and the door rail 3 is also mounted. A steady rest roller 2 </ b> B is attached to the door suspension plate 2 with a predetermined gap from the lower end of 3. Further, a door shoe 4 detachably attached to the lower end of the hall door 1 is engaged with a groove 5A of the sill 5, and the hall door 1 is guided by the door rail 3 at the upper end and the groove 5A of the sill 5 at the lower end. ing.

Here, in the vicinity of the closed end above the hall door 1,
A fold-shaped link portion 6 is rotatably attached at a fulcrum 6A, and a grip portion 7 hung down near the lower end of the landing door 1 is welded to the fold-shaped link portion 6 and the grip portion is further welded. When a force is applied to the hall door 1 in the opening direction of the hall door 1, the hall door 1 is provided with a stopper 8 for keeping one side of the fold-shaped link portion 6 horizontal. Further, a stopper 9 for restricting the rotation at the fulcrum 6A is attached near the open end of the door.

The door suspension plate 2 is provided with a hook 10 for locking the landing door 1 and an inside opening rope 10A of the landing door 1 attached to the hook 10 and tied near the lower end of the landing door 1. There is.

Next, the operation of this embodiment will be described.

Now, when the worker who has finished the inspection work of the hoistway bottom 11 is going to get out to the landing on the bottom floor, he climbs up the lap 12 and pulls the inside release rope 10A to remove the hook 10. In this state, when a force is applied to the lower end of the grip portion 7 in the opening direction of the landing door 1, the fold-shaped link portion 6 rotates at the fulcrum 6A and one side contacts the stopper 8. Since the upward force applied when the hall door 1 is opened is absorbed by the stopper 8, the force that rises upward on the open end side of the hall door 1 is suppressed, and the hall door 1 moves horizontally and rises to the ramp 12. Since it can be easily opened even in an unsafe posture, it is not dropped into the hoistway bottom 11 or trapped in the hoistway bottom 11.

[0015]

According to the present invention, when a force is applied in the opening direction of the landing door by holding the grip portion, the fold-shaped link portion provided at the upper end of the landing door pivots and contacts the stopper. The upward force is absorbed by the stopper, and the horizontal force is applied. In this way, the force applied in the opening direction by the grips below the landing door is transmitted to the stopper mounting position above the landing door, so that the steady rest roller does not lift up. Can be easily opened, the time required for maintenance work can be shortened, and it is not trapped at the bottom of the hoistway.

[Brief description of drawings]

FIG. 1 is a front view of a landing door according to an embodiment of the present invention as viewed from inside a hoistway.

FIG. 2 is a perspective view of the lowest floor landing door according to the embodiment of the present invention as seen from inside the hoistway.

[Explanation of symbols]

 1 Landing door 6 F-shaped link part 7 Grip part 8 Stopper

Claims (1)

[Claims] 1. A door suspension roller rotatably mounted on a door suspension plate fixed to the upper end of the door and rolling on the upper end of the door rail, and a steady rest roller having a predetermined gap at the lower end of the door rail. Therefore, in the elevator landing door device that is guided to open and close in the longitudinal direction of the door rail, a fold-shaped link portion rotatably mounted near the closed end portion of the upper portion of the door and one end of this link portion. A gripping part connected to the door and hanging down to near the lower end of the door; and a stopper for horizontally holding one side of the link part when a force in the opening direction of the door is applied to the gripping part. Characteristic elevator hall door device.