JP2010143730A - Elevator sill clearance reducing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator sill clearance reducing device capable of reducing a clearance generated between a car sill and a landing hall sill when opening a door, with a simple constitution. <P>SOLUTION: This elevator sill clearance reducing device has a car door for opening-closing the car doorway of a car lifting in an elevator hoistway, the car sill for forming a lower edge part of the car doorway, a shielding body arranged in the car sill and reducing by blocking up the clearance between the car sill and the landing hall sill by projecting to the landing hall side by elastic force, and a pressing plate arranged in a lower part of the car door, pressing the shielding body to the car side against the elastic force when fully closing the car door and releasing the shielding body when fully opening the car door. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an elevator sill gap reducing device.

  In the conventional elevator sill clearance reduction device, in order to reduce the traveling noise generated when the elevator runs at high speed, it is determined by the Building Standards Law and the enforcement regulations of the law between the car sill on the car side and the landing sill on the landing side. A gap larger than 4 centimeters is formed to suppress driving noise, and at the time of landing, it can be rotated by a hinge using a link mechanism provided via a cam and a roller so as to interlock with the opening and closing of the car door It is known that the attached movable sill is rotated to a use position so that the gap between the car sill and the landing sill is 4 centimeters or less (see, for example, Patent Document 1).

  In addition, it is mounted on the car sill so that it is parallel to the opening and closing direction of the car door and can be rotated around the horizontal rotation axis so that it can be tilted and standing upright. The siding clearance is reduced and the siding clearance is returned to the normal use state in the standing state, and the moving force in the opening / closing direction of the car door is converted into rotational torque, and the passing torque is used to convert the sway clearance. A drive section for rotating the plate assembly about the rotation shaft, the drive section being coaxially integrated with the rotation shaft, and a spiral groove provided on the outer peripheral surface of the drive shaft And an engagement pin that engages with the spiral groove and moves while being guided by the spiral groove, a car door and the engagement pin are connected, and the engagement pin is reciprocated linearly in conjunction with the opening and closing operation of the car door. What is composed of a connecting part to be In example, see Patent Document 2).

Japanese Patent Laid-Open No. 06-305670 JP 09-058955 A

However, the conventional elevator sill gap reducing device disclosed in Patent Document 1 requires a cam, a roller, and a link mechanism for driving the movable sill, resulting in a complicated configuration.
In addition, even when the movable sill is placed in the use position, there is a gap between the movable sill and the landing sill. Since it is not configured to be able to capture, fallen objects etc. on the movable sill roll on the movable sill surface and fall from the above-mentioned gap, and foreign objects such as fallen objects fall into the hoistway. There is also a problem that there is a risk of invading and causing an abnormality in the equipment in the hoistway.

And in the conventional elevator sill gap reduction device shown in Patent Document 2, the outer periphery is used as a drive unit that converts the moving force in the opening / closing direction of the car door to rotational torque and drives the transfer plate assembly (movable sill). A drive shaft having a spiral groove on the surface, an engagement pin guided and moved by the spiral groove, and a car door and an engagement pin that are connected to each other. There is a problem similar to that of the prior art disclosed in the above-mentioned Patent Document 1 in that the configuration is complicated and the configuration becomes complicated.
Furthermore, even when the transfer plate assembly (movable sill) is passed between the car sill and the landing sill, there are gaps on both sides thereof. Like the movable sill of the prior art disclosed in the above-mentioned Patent Document 1, it is not configured to capture the fallen object on the surface, so that the fallen object rolls on the surface of the transfer plate assembly. Similarly, there is a problem that foreign matter such as a fallen object may fall into the hoistway and fall into the hoistway to cause an abnormality in the hoistway device.

The present invention has been made in order to solve the above-described problems, and a first object is to reduce a gap generated between a car sill and a landing sill with a simple configuration while the door is open. An elevator sill gap reduction device that can be obtained is obtained.
The second purpose is to capture the fallen objects on the sill and prevent foreign matter from falling into and entering the hoistway. An elevator sill gap reduction device capable of preventing occurrence and the like in advance is obtained.

  In the elevator sill clearance reducing apparatus according to the present invention, a car door that opens and closes a car doorway of a car that moves up and down in the elevator hoistway, a car sill that forms a lower edge of the car doorway, and the car sill A shield that protrudes toward the landing side by elastic force and closes and reduces the gap between the car sill and the landing sill, and is provided at a lower part of the car door, and the shield when the car door is fully closed And a pressing plate that presses the car against the elastic force toward the car and releases the shield when the car door is fully open.

  The present invention relates to an elevator sill clearance reducing device, which is provided in a car door that opens and closes a car doorway of a car that moves up and down in an elevator hoistway, a car sill that forms a lower edge of the car doorway, and the car sill A shield that protrudes toward the landing side due to elastic force and closes and reduces the gap between the car sill and the landing sill, and is provided at a lower part of the car door, and when the car door is fully closed, the shield is A car with a simple structure, which is pressed while the door is open, is provided with a presser plate that is pressed against the car against the elastic force and releases the shield when the car door is fully opened. There is an effect that the gap generated between the threshold and the landing threshold can be reduced.

  The present invention will be described with reference to the accompanying drawings. Throughout the drawings, the same reference numerals indicate the same or corresponding parts, and redundant description thereof will be simplified or omitted as appropriate.

Embodiment 1 FIG.
FIGS. 1 to 4 relate to Embodiment 1 of the present invention. FIG. 1 is a plan view showing a clearance reducing device between elevator sills when the door is fully opened, and FIG. 2 is a clearance reducing device between elevator sills when the door is fully open. FIG. 3 is a plan view showing a gap reducing device between elevator sills when the door is fully closed, and FIG. 4 is an enlarged cross sectional view showing a main part of the elevator sill gap reducing device when the door is fully closed.

In the figure, reference numeral 1 denotes an elevator hoistway, and a car 2 for raising and lowering passengers and the like is disposed in the hoistway 1. In the front part of the car 2, a car doorway is provided with a left car door 3a and a right car door 3b which are double doors for opening and closing the car doorway, and a car at the lower edge of the car doorway. A sill 4 is attached (here, the left and right directions are based on the case of going from the elevator hall to the car. The same applies hereinafter). A door roller (not shown) is rotatably attached to the upper ends of the left car door 3a and the right car door 3b via a door hanger, and the door roller is attached above the car doorway. The left-side car door 3a and the right-side car door 3b are suspended so as to be openable and closable by being slidably engaged with the door rail.
And each lower end part of the said left car door 3a and the right car door 3b is slidably engaged with the groove | channel provided in the said car sill 4, and the said left car door 3a and the said right car door 3b When opening and closing, it is guided by the groove of the car sill 4.

A landing doorway is provided at a position of the hall 5 on the floor where the car 2 stops, at a position facing the car doorway when the car 2 stops on the floor. At the landing entrance, a left landing door 6a and a right landing door 6b, which are double doors, are provided so as to be openable and closable. A landing threshold 7 is attached to the lower edge of the landing entrance. The lower ends of the left landing door 6a and the right landing door 6b are slidably engaged with grooves provided in the landing sill 7, and when the left landing door 6a and the right landing door 6b are opened and closed, Guided by the groove on the landing threshold 7.
The left car door 3a and the right car door 3b and the left landing door 6a and the right landing door 6b are engaged with each other when the car 2 reaches the stop floor. The door is configured to open and close in conjunction.

A shield 8 is attached to the car sill 4 toward the landing sill 7, and the shield 8 is disposed on the left side of the left car door 3 a when the door is fully closed. It consists of a shield 8a and a right shield 8b that is also positioned below the right car door 3b.
Each of the left shielding body 8a and the right shielding body 8b is configured by arranging a plurality of protrusions made of a flexible material (for example, rubber or nylon resin) in a brush shape, Thus, the plurality of protrusions are inclined from a direction perpendicular to the mounting surface of the car sill 4 to a predetermined direction. At this time, the front ends of the left shield 8a and the right shield 8b may be in complete contact with the landing sill 7, or the front ends of the left shield 8a and the right shield 8b An appropriate gap may be provided between the landing threshold 7 and the landing threshold 7.

The predetermined direction in which the multiple protrusions are tilted is specifically a moving direction when the car door on the same side of the left shield 8a and the right shield 8b is closed, More specifically, the protrusion constituting the left shield 8a is moved to the right side which is the moving direction when the left car door 3a, which is the car door on the same side, is closed, and conversely the right shield. The protrusions constituting the body 8b are provided to be inclined to the left side which is the moving direction when the right car door 3b on the same side is closed.
In other words, it can be said that the protrusions constituting the left and right shields 8 are inclined toward the center of the car doorway (or the landing doorway).

Near the lower part of the surface of the left car door 3a on the landing 5 side, a left presser plate 9a having a crank-like cross section and having a width dimension covering almost the entire width of the left car door 3a is detachably attached. . The left holding plate 9a having a crank-shaped cross section is formed by raising a surface of the left side car door 3a that is substantially perpendicular to the surface on the landing 5 side, and an end of the surface on the landing 5 side. And a pressing surface formed by bending the portion downward, where the lower end of the left pressing plate 9a is positioned below the mounting position of the left shielding member 8a. It has become.
Further, the presser surface of the left presser plate 9 a is located at an approximately middle portion of the gap between the car sill 4 and the landing sill 7.

In the right car door 3b, a right press plate 9b is provided in the same manner as the left press plate 9a. That is, a right presser plate 9b having a crank-like cross section and having a width over almost the entire width of the right car door 3b is detachably mounted near the lower part of the surface of the right car door 3b on the landing 5 side. The right holding plate 9b having a crank-shaped cross section is formed by raising the surface of the right side car door 3b substantially perpendicular to the surface on the landing 5 side, and on the surface 5 side of this surface. It is comprised from the pressing surface formed by bending an edge part toward the downward direction, and the lower end part of the said right side pressing board 9b is located below rather than the attachment position of the said right side shield 8b. It has become.
Further, the presser surface of the right presser plate 9b is the same as the left presser plate 9a in that the presser surface is located approximately in the middle of the gap between the car sill 4 and the landing sill 7.

In the elevator sill clearance reducing apparatus configured as described above, when the car 2 stops on the stop floor and is landed and the left car door 3a and the right car door 3b are fully opened, FIG. As shown in FIG. 2, the shield 8 (the left shield 8a and the right shield 8b) protrudes toward the landing sill 7 in a state inclined in the predetermined direction, and the car sill 4 and the The gap with the landing threshold 7 is closed by the shield 8 and is reduced.
Accordingly, foreign matter such as dust and dirt is prevented from directly falling into and entering the hoistway 1 from the gap between the car sill 4 and the landing sill 7. Moreover, since fallen objects such as dust and dust on the shield 8 are adhered and held between the numerous protrusions arranged in a brush shape, the hoistway 1 rolls over the shield 8 and moves. It is prevented from falling or entering inside.

When the left car door 3a and the right car door 3b start to close, the left presser plate 9a and the right presser plate 9b attached to these car doors are connected to the left shield 8a and It abuts on the outside of each of the right shields 8b and bends against the elastic force of the shields 8. When the left car door 3a and the right car door 3b are fully closed, all the protrusions of the left shield 8a and the right shield 8b are pressed against the left presser plate 9a and the right presser plate 9b. It is pressed by the surface and bent, and is stored on the side of the car sill 4 of the left side pressing plate 9a and the right side pressing plate 9b (FIGS. 3 and 4).
In this state, the distance between the shield 8 and the landing sill 7 increases, and the shield 8 does not come into contact with the landing sill 7. There will be no trouble.

  And after the hoistway 1 traveled and landed, when the left car door 3a and the right car door 3b started to open, they were pressed by the left presser plate 9a and the right presser plate 9b and bent. The protrusions of the shield 8 are released, and return to the state of projecting in the predetermined direction toward the landing sill 7 due to their own elasticity, and the situation shown in FIGS. Return.

  In the elevator sill clearance reduction device configured as described above, the car sill is made of a flexible material and protrudes toward the landing side by its own elastic force to close the gap between the car sill and the landing sill. In addition to providing a shield that shrinks, a presser that holds the shield against the elastic force against the elastic force when the car door is fully closed, and releases the shield when the car door is fully open, at the bottom of the car door By providing a board, it is possible to reduce the gap generated between the car sill and the landing sill when the door is opened with a very simple and highly versatile configuration.

In addition, by configuring the shielding body by arranging a large number of protrusions in a brush shape, it is possible to capture falling objects on the sill and prevent foreign matter from falling into and entering the hoistway. It is possible to prevent the occurrence of abnormalities in the equipment in the hoistway due to the entry of foreign matter.
The shield is tilted from the direction perpendicular to the mounting surface of the car sill to the moving direction when the car door is closed, so that the shield is pressed by the presser plate when the car door is closed. The operation can be performed smoothly, and the degree of bending of the shield when the car door is fully closed becomes light, and the life of the shield can be extended. Furthermore, by providing the shield detachably on the car sill, it is possible to easily replace only the shield when the shield is soiled, and to reduce the burden of maintenance work.

Here, a flexible material is used as the shielding body, and the shielding body itself is protruded toward the landing side by the elasticity of the shielding body. However, an elastic body such as a spring is provided separately from the shielding body and shielded by this elastic body. A configuration in which the body is biased toward the landing is also possible.
In addition, the car door and the landing door are double-opened, and the shield and the presser plate are provided on the side of the car. However, for these, the car door and the landing door may be single-opened, or the shield and the presser plate. May be provided on the landing side.

It is a top view which shows the clearance reduction apparatus between elevator sills at the time of door full open in Embodiment 1 of this invention. It is a principal part expanded sectional view which shows the elevator sill space clearance reducing apparatus at the time of door full open in Embodiment 1 of this invention. It is a top view which shows the clearance reduction apparatus between elevator sills at the time of door full closure in Embodiment 1 of this invention. It is a principal part expanded sectional view which shows the elevator sill space clearance reducing apparatus at the time of door full closure in Embodiment 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Passenger car 3a Left car door 3b Right car door 4 Car sill 5 Car landing 6a Left landing door 6b Right landing door 7 Landing sill 8 Shield 8a Left shield 8b Right shield 9a Left press plate 9b

Claims (5)

A car door that opens and closes the car doorway of the elevator that goes up and down in the elevator hoistway,
A car sill that forms the lower edge of the car doorway;
A shield that is provided in the car sill, protrudes toward the landing side by an elastic force, and closes and reduces a gap between the car sill and the landing sill;
A presser provided at a lower part of the car door, presses the shield against the elastic force when the car door is fully closed, and releases the shield when the car door is fully opened. And an elevator sill gap reduction device.   The elevator sill clearance reducing device according to claim 1, wherein the shield is detachably provided on the car sill.   The shield is made of a flexible material and protrudes toward a landing side by the elastic force of the shield itself to close and reduce a gap between the car sill and the landing sill. The elevator sill gap reducing device according to claim 1 or claim 2.   The elevator sill gap reducing device according to any one of claims 1 to 3, wherein the shield is configured by arranging a large number of protrusions in a brush shape.   The said shielding body was inclined and provided from the direction perpendicular | vertical with respect to the attachment surface of the said car sill to the moving direction at the time of the door closing of the said car door, either of Claim 3 or Claim 4 characterized by the above-mentioned. The elevator sill gap reduction device described in 1.

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