JP2002120987A - Elevator sill groove closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator sill groove closing device for closing a sill groove provided in the doorway of the elevator and guiding a guide shoe of a door. SOLUTION: The elevator sill groove closing device is provided with a closing band, i.e., a flexible band member closing a sill groove and made of metal; a tension device having a tension spring for tightening this closing band such that the closing band can be displaced to a closing position where an opening of the sill groove is always closed in the sill groove along the opening of the sill groove and an urged position where it is urged into the sill groove when it is partially clamped by a guide shoe; and an elastic device including a compression spring for elastically supporting the closing band to a closing position in the sill groove at a normal time and capable of partially displacing an only urged part to an urged position by a guide shoe.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator sill groove closing device which is used at a doorway of an elevator and has a sill groove for guiding a door guide shoe to close the sill groove.

[0002]

2. Description of the Related Art FIG. 11 is a schematic view showing a configuration of an entrance and exit of a conventional elevator. In FIG.
The car door 3 is provided at an entrance 22 in front of the vehicle. The car door 3 comprises a low-speed door 3b on the car side (right side in FIG. 11) and a high-speed door 3a on the outside thereof (left side in FIG. 11). It is suspended by a driving device 23 and driven to open and close. A door shoe 5 for guiding the doors is provided at the bottom of each of the doors 3a and 3b. The door shoe 5 is guided in a sill groove 6a of a car sill 6 provided at a lower portion of the side surface of the car 2 and slides reciprocally, and the car door 3 reciprocally slides therewith.

The entrance 2 on the landing side (left side in FIG. 11)
The landing door 4 provided at 4 comprises a low-speed door 4b on the landing side and a high-speed door 4a on the car door side (the right side in FIG. 11), is suspended from the guide rail 25, and moves together with the car door 3. As described above, the car door 3 is engaged, and a door shoe 5 is provided at the bottom of each door. The door shoe 5 is located on a landing sill 7 provided in the landing 8, is guided in a landing sill groove 7 a provided in the landing sill 7, and reciprocally slides, and the landing door 4 reciprocally slides therewith. .

In the conventional elevator constructed as described above, foreign matter that has entered the car sill groove 6a and the landing sill groove 7a collides with the door shoe 5 moving in the sill,
Biting between the door shoe 5 and the sill may hinder the smooth movement of the car door 3 and the landing door 4, and may also lead to damage of the door shoe 5, so that foreign matter in the sill may be removed with a brush or a brush. It is necessary to remove it by hand.

[0005]

In the conventional elevator, foreign substances may enter the sill grooves 6a and 7a as described above, and if the foreign substances are left unattended, smooth reciprocal sliding of the door is hindered. , The door shoe 5 and the doors 3 and 4 may be damaged. In order to eliminate such inconvenience, it is necessary to remove foreign matter with a brush or a brush. This operation requires time and effort, and depending on the place where foreign matter enters frequently, the frequency of the removal operation may be too high to cope. Further, since the sill grooves 6a and 7a are located at places where the passengers can see, the aesthetics of the sills 6 and 7 and, consequently, the aesthetic feeling of the entire elevator system are impaired.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems of the conventional sill groove, and to be used with a sill provided at an entrance of an elevator and having a sill groove for guiding a door guide shoe. It is an object to obtain an elevator sill groove closing device for closing a sill groove.

[0007]

According to the present invention, means for solving the above-mentioned problems are as follows. (1) An elevator sill groove closing device is used together with a sill having a sill groove provided at an entrance and exit of an elevator to guide a guide shoe of a door, and a stretching device provided at both ends of the sill groove and a stretching device. Both ends are supported, stretched to the closed position to close the opening of the sill groove along the opening of the sill groove in the sill groove, and pushed into the sill groove when partially bent by the guide shoe A flexible closing band that can be displaced to the pressing position, and a closing band provided in the sill groove, which normally elastically supports almost the entire length of the closing band at the closing position, and only the portion pressed by the guide shoe. And a resilient device for supporting a part of the elevator sill so as to be able to be partially displaced to a pressed position.

(2) The obstruction band is supported by tension springs at both ends in the length direction in the sill groove.

(3) The closing band is a waisted metal band-shaped member.

(4) The elastic device is a plurality of compression springs, one end of which is in contact with the sill groove and the other end of which is in contact with the closing band, and which is arranged at predetermined intervals along the sill groove.

(5) Each of the compression springs has a spring seat at both ends in contact with a sill groove or a closing band.

(6) The closing band includes a spring seat receiving portion fitted to the spring seat, and a spring seat receiving portion to be fitted with the spring seat is provided on the bottom wall of the sill groove.

(7) The spring seat receiver on the bottom wall of the sill groove is provided on a fixed band fixed to the sill groove.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An elevator sill groove closing device according to one embodiment of the present invention is used for a sill groove of a sill provided at a landing entrance and a car entrance of an elevator, and is shown in FIGS. The embodiment will be described as being used in the sill groove 6a of the sill 6 provided at the car doorway 22 of the elevator of FIG. 11, but the same applies when used with the sill 7 provided at the landing side entrance 24. is there. That is, also in the elevator using the elevator sill groove closing device shown in FIGS. 1 to 3, the door is movably suspended at the entrance and driven by a door driving device (not shown) to open and close the entrance. A door 3 is provided. The lower end of the door 3 is provided with a guide shoe 5 which can be guided and slid in the threshold groove 6a so that the lower end of the suspended door 3 does not swing.

As shown in FIGS. 1 to 3, the elevator sill groove closing device is provided with tension devices 16 provided at both ends in the longitudinal direction of the sill groove 6a, and supported by the tension device 16 at both ends. And a long band-shaped closing band 10 stretched over. The stretching device 16 stretches the blocking band 10 between the stretching devices 16, that is, stretches it by applying tension in the length direction, and the blocking band 10 is stretched and the sill groove 6 is stretched.
a is held at the closed position (FIGS. 1 and 2). When the closing band 10 is in the closing position, the closing band 10 closes the opening 6b of the sill groove 6a along the opening 6b of the sill groove 6a within the sill groove 6a. In addition, the surface 10 of the occlusion zone 10
The height a in the sill groove 6 a is set to be flush with the top surface 6 c of the sill 6. For this reason, when the closing band 10 is in the closing position, foreign matter is prevented from entering the threshold groove 6a.

As shown in FIGS. 1, 6 and 7, the stretching device 16 is provided at each end of the sill 6, and has an L-shaped fixing member 16 fixed to the sill 6 with a bolt 17.
a tension bolt 12 extending loosely through the hole 16b at the upper end of the fixing member 16a and fixed to the end of the closing band 10 by a screw 14, and an adjustment nut 15 screwed to the tension bolt 12. Tension spring 1 which is a compression spring provided between the adjustment nut 15 and the fixing member 16a
3 is provided. The tension of the tension spring 13 applied to the closing band 10 can be adjusted by the adjusting nut 15.

The closing band 10 supported by the tensioning device 16 with the both ends in the longitudinal direction thus tensioned in the longitudinal direction in the sill groove 6a as shown in FIG. 4 and FIG.
For example, a stiff and flexible metal band-shaped member such as stainless steel, which is pressed into the sill groove 6a when partially bent by the guide shoe 5 as shown in FIG. 1 and 3).
To this end, the length of the blocking band 10 is substantially equal to the length of the threshold groove 6a, but the width is slightly smaller than the width of the threshold groove 6a.

Since the closing band 10 is fixed to the tension bolt 12 of the tensioning device 16 at both ends and receives the tension of the tension spring 13, the guide shoe 5 of the door 3 as shown in FIG.
When the guide shoe 5 is partially pressed downward, the portion is lowered downward to a pressed position (FIG. 3) where the movement of the guide shoe 5 is not hindered. In this way, even when the occlusion band 10 is partially in the depressed position, other portions of the occlusion band 10 can remain at the occlusion position (FIG. 2). An elastic device 18 is provided over it. The elastic device 18 is provided in the threshold groove 6a,
Usually, almost the entire length of the occlusion zone 10 is set at the above-described occlusion position (FIG. 2)
Only the portion pressed by the guide shoe 5 is supported so that the closing band 10 can be partially displaced to the pressed position (FIG. 3).

The elastic device 18 is a plurality of compression coil springs 20 each having one end abutting on the sill groove 6a and the other end abutting on the closing band 10, and being arranged at predetermined intervals along the sill groove 6a.
As shown in FIG. 8, each elastic device 18 has substantially square spring seats 19a and 19b at both ends abutting on the closing band 10 or the sill groove 6a, and is provided on the lower surface of the closing band 10 and the bottom wall of the sill groove 6a. They are in contact with each other via spring seats 19a and 19b. Also, the lower surface of the occlusion zone 10 and the sill groove 6a
The bottom wall is formed with substantially square spring seat receivers 10a and 21a to be fitted with these spring seats. In the illustrated example, the spring seat receiver 21 provided on the bottom wall of the threshold groove 6a is provided.
a is provided on a band 21 fixed to the bottom wall of the sill groove 6a with a screw or the like (not shown). These spring seat receivers 21a and the band 21 are used in FIGS. A fixed band having the same structure as the closed band 10 shown in FIG. 5 is formed. By using such a spring seat receiver 21a,
The elastic device 18 can be prevented from moving or falling in the sill groove 6a. In addition, the closing device is installed in the threshold groove 6.
The work of assembling and installing in a becomes easy.

When the door 3 is driven, the door shoe 5 is guided in the sill groove 6a, and the door 3 can be opened and closed without moving right and left. The elastic device 18 exerts a downward force to apply tension to the closing band 10, and the elastic device 18 elastically holds the closing band 10 at the closed position (FIG. 2). The belt 10 is pushed down into the sill groove 6a to the pushed position (FIG. 3). The closing band 10 and the elastic device 18 that are not below the door shoe 5 are maintained in the closed position (FIG. 2) by the elastic supporting action of the closing band 10 and the elastic device 18 because the pressing force of the door shoe 5 does not act. As the door shoe 5 moves, the portion where the closing band 10 is at the closing position (FIG. 2) also moves.

As described above, according to the elevator sill groove closing device of the present invention, the sill groove 6a has the same height as the top surface 6c of the sill 6 over the entire length except for the portion pressed down by the guide shoe 5 of the door 3. Since it is closed by the blocking band 10, foreign matter can be prevented from entering the threshold groove 6a,
Foreign matter does not hinder the smooth movement of the door 3 and does not damage the guide shoe 5 or the sill groove 6a of the door 3.

Therefore, unlike the conventional elevator, no foreign matter enters the sill grooves 6a and 7a, and the smooth reciprocal sliding of the door is hindered, and the door shoe 5 and the doors 3 and 4 are damaged. There is no. Also, the work of removing foreign matter with a brush or a brush becomes almost unnecessary. In addition, since the threshold grooves 6a and 7a are closed, the beauty of the thresholds 6 and 7 can be improved.
As a result, the beauty of the entire elevator system is not impaired.

As a case that is expected to occur rarely,
As shown in FIGS. 9 and 10, the foreign matter 26 rides on the obstruction band 10 at the obstruction position shown in FIG. 2 and the guide shoe 5 approaches the obstruction band 10.
6 may also fall into the depression position and enter the threshold groove 6a. In such a case, when the guide shoe 5 hits the foreign matter 26, a downward force acts on the obstruction band 10 via the foreign matter 26, and the obstruction band 10 and the elastic device 18 are resiliently supported. When the guide shoe 5 is moved to the depressed position (FIG. 3), and the guide shoe 5 further moves over the foreign matter 26, the elastic device 18 is further compressed by a distance corresponding to the height of the foreign matter 26 to the position shown in FIG. It pushes down the occlusion zone 10. As described above, in order for the guide shoe 5 to get over the foreign matter 26, the guide shoe 5 and the door 3 do not need to rise and get over, and conversely, it is only necessary that the closing band 10 and the elastic device 18 be elastically pushed down. In addition, it is easy to get over the foreign matter 26, and the opening / closing operation of the door 3 is not significantly affected, and the failure of the guide shoe 5 and the door 3 is reduced.

[0024]

As is apparent from the above description, the effects of the elevator sill groove closing device of the present invention are as follows. (1) The elevator sill groove closing device of the present invention is used together with a sill provided at an entrance of an elevator and having a sill groove for guiding a guide shoe of a door, and a stretching device provided at both ends of the sill groove; Both ends are supported by the mounting device, and are stretched to a closing position for closing the opening of the sill groove along the opening of the sill groove within the sill groove, and are partially bent by the guide shoe into the sill groove. A flexible closing band that can be displaced to the pressed down position, and provided in the sill groove, and generally elastically supports almost the entire length of the closing band at the closing position, and only a portion pressed by the guide shoe. And an elastic device for supporting the closing band so that the closing band can be partially displaced to the pressed position. Therefore, foreign substances can be prevented from entering the sill groove, and smooth reciprocal sliding of the door is not hindered, and the door shoe and the door are not damaged. In addition, there is no need for a time-consuming and labor-intensive removal operation for removing foreign matter that has entered the threshold groove. Further, the beauty of the sill and, consequently, the beauty of the entire elevator system are not impaired.

(2) Since the blocking band is supported by tension springs at both ends in the lengthwise direction in the sill groove, the sill groove is reliably closed, and the door can smoothly slide back and forth. The sill groove can be closed without hindrance, and the aesthetics of the sill and, consequently, the aesthetics of the entire elevator system are not impaired.

(3) Since the obstruction band is a waisted metal band-like member, foreign substances can be prevented from entering the sill groove, and smooth reciprocal sliding of the door is not hindered, and the door shoe and the door are damaged. Nothing to do. In addition, there is no need for a time-consuming and labor-intensive removal operation for removing foreign matter that has entered the threshold groove. Further, the beauty of the sill and, consequently, the beauty of the entire elevator system are not impaired.

(4) The elastic device has a plurality of compression springs, one end of which contacts the sill groove and the other end of which contacts the obstruction band, and which is arranged at predetermined intervals along the sill groove. Portions other than the restricted portion are elastically supported at the closing position, so that the sill can be reliably closed and foreign matter can be prevented from entering. Further, the door shoe and the door are not damaged, and a time-consuming and troublesome removal operation for removing the foreign matter that has entered the sill groove is unnecessary. Furthermore,
The beauty of the sill and, consequently, the overall beauty of the elevator system will not be impaired.

(5) Since each of the above-mentioned compression spring devices has a spring seat abutting on a sill groove or a closing band at both ends, the compression spring does not move in the sill groove.
Blockage of the sill is reliably performed.

(6) The closing band has a spring seat receiving portion fitted to the spring seat, and a spring seat receiving portion to be fitted with the spring seat is provided on the bottom wall of the sill groove. Can be prevented from entering, and the operation of the closing device is ensured.

(7) Since the spring seat receiver on the bottom wall of the sill groove is provided in the fixed band fixed to the sill groove, it is easy to install the elevator sill groove closing device on the sill.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing an embodiment of an elevator sill groove closing device according to the present invention.

FIG. 2 is a sectional view taken along the line AA in FIG. 1;

FIG. 3 is a sectional view taken along line BB in FIG. 1;

FIG. 4 is a side sectional view showing the obstruction band of FIG. 1;

FIG. 5 is a plan view showing the obstruction band of FIG. 1;

FIG. 6 is an exploded perspective view showing a tension portion of a tension device of the elevator sill groove closing device of the present invention.

FIG. 7 is an exploded perspective view showing a support portion of a stretching device of the elevator sill groove closing device of the present invention.

FIG. 8 is a perspective view showing an elastic device of the elevator sill groove closing device of the present invention.

FIG. 9 is a partial cross-sectional view illustrating an operation of the elevator sill groove closing device according to the present invention with respect to foreign matter mixing.

FIG. 10 is a partial cross-sectional view illustrating an operation of the elevator sill groove closing device of the present invention with respect to foreign matter mixing.

FIG. 11 is a partial cross-sectional view showing an example of a conventional elevator to which the elevator sill groove closing device can be applied.

[Explanation of symbols]

1 elevator, 22, 24 doorway, 3, 4 door, 5
Guide shoe, 6a, 7a Sill groove, 6, 7, Sill, 1
6 Stretching device, 6b Opening of sill ditch, 10 Closure band, 1
8 Elastic device, 13 tension spring, 20 compression spring, 19
a, 19b Spring seat, 21 fixed band.

Claims (7)

[Claims] The present invention is used with a sill provided at an entrance of an elevator and having a sill groove for guiding a guide shoe of a door, a stretching device provided at both ends of the sill groove, and both ends supported by the stretching device. A pushing position that is stretched in the sill groove along the opening of the sill groove to a closing position that closes the opening of the sill groove, and is pushed into the sill groove when partially bent by the guide shoe. And a flexible closing band that can be displaced in the sill groove, and which is normally provided in the sill groove and elastically supports almost the entire length of the closing band at the closing position, and only a portion pressed by the guide shoe. An elevator sill groove closing device comprising: an elastic device that partially supports the closing band so as to be displaceable to the pressed position. 2. The elevator sill groove closing device according to claim 1, wherein the closing band is supported at both ends in the length direction by tension springs in the sill groove in the length direction. 3. The elevator sill groove closing device according to claim 1, wherein the closing band is a waisted metal band-shaped member. 4. The elastic device is a plurality of compression springs, one end of which contacts the sill groove and the other end of which contacts the closing band, and which is arranged at predetermined intervals along the sill groove. 4. The elevator sill groove closing device according to any one of claims 1 to 3. 5. The elevator sill groove closing device according to claim 4, wherein each of said compression springs has a spring seat at both ends which abuts on said sill groove or said closing band. 6. The spring band according to claim 5, wherein the closing band includes a spring seat receiving portion that fits with the spring seat, and a spring seat receiving portion that fits with the spring seat is provided on a bottom wall of the sill groove. Elevator threshold groove closing device. 7. The elevator sill groove closing device according to claim 6, wherein the spring seat receiver on the bottom wall of the sill groove is provided in a fixing band fixed to the sill groove.