JPH0578071A - Floor for elevator cage - Google Patents

Abstract

PURPOSE:To prevent noise caused by air flow when an elevator cage runs as well as to dispose of foreign objects by allowing the elevator cage to be equipped with an elevator sill having a dust removing hole, a housing box beneath the cage, and with a closing mechanism section, and thereby constituting the closing mechanism section to be opened/closed at the engagement section of a lift path. CONSTITUTION:When an elevator cage normally runs, the bottom plate 11 of a housing box 10 is closed, foreign objects such as dust, mud and the like piled up in the guide groove 7 of a sill 6 drop down through a dust removing hole 8 into the housing box 10 so as to be accumulated therein temporarily. When the elevator cage comes down to the lowermost floor, the bottom plate 11 is opened with a roller 15 brought into contact with a cam 16, the foreign objects accumulated in the housing box 10 are discharged. And when the elevator cage normally descends, air flow won't come in the dust removing hole 8 in the sill 6 after it has been guided by an apron 9, the foreign objects accumulated in the housing box 10 are discharged when the elevator cage comes down to the lowermost floor, noise and abnormal sound due to air flow from the vicinity of the dust removing hole 8 are thereby dissolved, so that the foreign objects such as dust piled up in the guide groove 7 and the like are prevented from being splashed over to the inside of the cage or the lift path.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to elevator car floors.

[0002]

2. Description of the Related Art The structure of a conventional elevator car will be described with reference to FIG.

In FIG. 3, a car floor 3 is provided below a car 2 that moves up and down in a hoistway 1, and a door 4 is suspended at the entrance / exit of the car 2. Further, a guide piece 5 is provided at the lower end of the door 4, and a sill 6 provided at the front end of the car floor 3 on the entrance and exit side.
The door 4 is configured to open and close by engaging with the guide groove 7. Further, a dust drop hole 8 for discharging foreign matter such as dust or mud accumulated in the guide groove 7 is fixed to the sill 6, and an apron 9 is fixed to the lower portion of the entrance / exit side.

With such a structure, when the elevator descends, the air flow to the flow path of the sill 6a on the entrance side having a narrow air flow area and a large number of irregularities is suppressed, and the flow to other than the entrance side is suppressed. The airflow was controlled to direct it to the lane.

[0005]

However, in the above-mentioned conventional elevator, most of the airflow flows to the back wall side of the car 2 by the apron 9 when the elevator descends, but the entrance side to the car floor 3 side. Since the dust drop hole 8 of the sill 6 provided at the tip is open to the air flow, a part of the air flow passes through the dust drop hole 8 and flows into the inlet / outlet side flow path, generating a vortex and generating noise. . Further, there is a problem that dust accumulated in the guide groove 7 is scattered in the car and the hoistway. Furthermore, since the flow path in the vicinity of the dust drop hole 8 is extremely narrow, the air flow becomes a whistling state, which causes a discomfort or anxiety to passengers in the car.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an elevator car floor capable of preventing noise caused by air flow during traveling of the elevator and capable of discharging foreign matter such as dust or mud.

[0007]

In order to achieve the above object, the present invention provides an elevator sill having a dust drop hole in an elevator car door guide groove, and a storage box provided below the dust drop hole of the sill, and An opening / closing mechanism portion provided at the bottom of the storage box for opening and closing the bottom portion of the storage box, and the opening / closing mechanism portion engages with an engaging portion provided in a hoistway of the elevator to open and close. Provided is an elevator car floor which is characterized by performing operations.

[0008]

As described above, in the elevator sill, the elevator door is guided by the guide groove, the foreign substances such as dust are removed by the dust drop hole, and the removed foreign substances such as dust are accumulated in the storage box, and the bottom of the storage box is installed. By engaging the opening / closing mechanism provided with the engaging part provided in the hoistway, the opening / closing operation is performed, and foreign matter such as dust accumulated in the storage box can be discharged, so that noise and noise are generated when the elevator is traveling. It is possible to prevent foreign matter such as dust from scattering in the car and the hoistway.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a configuration of an elevator car floor which is an embodiment of the present invention. In FIG. 1, the same components as those shown in FIG. 3 are designated by the same reference numerals and the description thereof will be omitted.

In FIG. 1, in addition to the structure of a conventional elevator car, an elevator car includes a storage box 10 for temporarily accumulating foreign matters such as dust below a dust drop hole 8 provided at a predetermined position of a guide groove 7. , A bottom plate 11 of the storage box 10 and a hinge 12 for opening and closing the storage box 10 and the bottom plate 11 as an opening / closing mechanism section.
And a spring for holding the storage box 10 and the bottom plate 11 in a closed state.
A configuration is provided that includes 13, an arm 14 having one end fixed to the bottom plate 11, and a roller 15 provided at the other end of the arm 14. Further, for example, near the bottom floor of the hoistway 1, a cam 16 is fixed at a position where the bottom plate 11 is opened by engaging with the roller 15 when the elevator reaches the bottom floor.

In the elevator car configured as described above, the bottom plate 11 of the storage box 10 is closed during normal traveling, and foreign matter such as dust or mud accumulated in the guide groove 7 falls through the dust drop hole 8. It is temporarily accumulated in the storage box 10. Here, for example, when the elevator arrives at the lowest floor, as shown in FIG. 2, the roller 15 and the cam 16 contact each other to open the bottom plate 11,
Foreign matter such as dust accumulated in the storage box 10 is discharged.

As described above, when the elevator descends during normal traveling, the air flow does not flow into the dust drop hole 8 of the rear sill 6 guided by the apron 9, and when the elevator reaches the lowest floor. Since foreign substances such as dust accumulated in the storage box 10 can be discharged, noise and noise due to the air flow from the vicinity of the dust drop hole 8 are eliminated, and foreign substances such as dust accumulated in the guide groove 7 are eliminated. It is possible to prevent scattering in the car and the hoistway.

In this embodiment, the bottom of the storage box is opened and closed. However, the same effect can be obtained even if foreign matters are discharged by opening and closing the bottom of the storage box with an inclination. Is what you get.

[0014]

As described above, according to the present invention, it is possible to provide an elevator car floor capable of preventing noise caused by air flow during traveling of an elevator and capable of discharging foreign matter such as dust or mud.

[Brief description of drawings]

FIG. 1 is a diagram showing a configuration of an elevator car floor that is an embodiment of the present invention.

FIG. 2 is a diagram showing a configuration of an elevator car floor that is an embodiment of the present invention.

FIG. 3 is a diagram showing a structure of a conventional elevator car.

[Explanation of symbols]

 2 ... Car 3 ... Car floor 4 ... Door 6 ... Sill 7 ... Guide groove 8 ... Dust drop hole 10 ... Storage box 11 ... Bottom plate 12 ... Hinge 13 ... Spring 14 ... Arm 15 ... Roller 16 ... Cam

Claims (1)

[Claims] 1. An elevator sill having a dust drop hole in an elevator car door guide groove, a storage box provided at a lower portion of the dust drop hole, and an opening / closing opening provided at a bottom portion of the storage box for opening / closing the bottom portion of the storage box. An elevator car floor, comprising: a mechanical portion, wherein the opening / closing mechanism portion engages with an engaging portion provided in a hoistway of the elevator to perform an opening / closing operation.