JPH05310391A - Supporting mechanism for lower end part of entrance port of elevator - Google Patents

Abstract

PURPOSE:To provide a supporting mechanism for the lower end of the entrance door of an elevator which prevents a foreign matter from being lodged in a guide groove and absorbs a change amount of a gap between the entrance door and the upper surface of a sill when the gap is changed. CONSTITUTION:A first supporting metal 25 having a first wheel 27 is mounted on the elevator shaft side 8 of a first door panel 9 arranged on the elevator shaft side 8, and a stretching mechanism 26 to energize upward the first lower supporting metal is attached to the first lower supporting metal 25. A first guide groove 28 in which a first wheel 27 arranged to the first lower supporting metal 25 is rotationally moved is formed on the elevator shaft side of the under surface of a sill 15. A second guide groove 30 in the lower part of a second door panel 18 is supported by a second wheel 31 arranged on the upper surface of the sill 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support mechanism for a lower end of an entrance / exit door of a sliding door type elevator, and more specifically, it uses a sill groove as a lower surface guide system to prevent foreign matter from being caught in the entrance / exit door. The present invention relates to a support mechanism for a lower end portion of an entrance / exit door of an elevator that can absorb the amount of change even if the gap of the item changes.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view showing an example of a conventional support mechanism for the lower end portion of an entrance / exit door of an elevator when viewed from the hoistway side of the elevator. 1a and 1b are first and second door panels that open and close to the left and right, and 2a and 2b are first and second reinforcing portions 3a that are attached to the lower portions of the first and second door panels 1a and 1b to reinforce them. , 3b are buffer portions that the first and second door panels 1a and 1b that are opened and closed to the left and right come into contact when closed, and 4a and 4b are the first and second buffer portions that are attached to the lower portions of the first and second reinforcing portions 2a and 2b. The second guide shoe. 5
Is the threshold of the landing, 6 is the first and second guide shoes 4a, 4
It is a guide groove provided on the upper surface of the threshold 5 for sliding b.

In the support mechanism constructed as described above, when the first and second door panels 1a and 1b are opened and closed, the first and second guide shoes 4a and 4b are moved along the guide groove 6 along with the opening and closing. To slide. However, if a foreign substance such as gum or pebbles enters the guide groove 6, the first and second door panels 1a and 1b may not be closed.

FIG. 6 is a perspective view showing an example of a support mechanism for the lower end of the entrance / exit door of an elevator disclosed in, for example, Japanese Utility Model Laid-Open No. 127685/1990 in order to solve the above problems. That is, the guide groove 6 on the sill 5 shown in FIG. 5 is eliminated to prevent foreign matters such as pebbles and dust from being caught, and prevent the opening / closing operation of the first and second door panels 1a and 1b from being defective. The design of the threshold 5 is also more flexible. 7 is a sectional view of a portion A of FIG. 6, FIG. 8 is a sectional view of a portion B of FIG. 6, and FIG. 9 is a sectional view of a portion C of FIG. Reference numeral 7 is an entrance / exit side of the elevator, 8 is a hoistway side, and 9 is a first door panel. Reference numerals 10a and 10a denote first upper mounting metal 11 mounted on the upper portion of the first door panel 9,
Reference numerals a and 11a are first grooved wheels mounted on the first upper mounting members 10a and 10a, and 12 is a first door panel 9 which is a first
Is a first guide rail that hangs and rolls via the upper mount metal 10a and the first grooved wheel 11a.

Reference numerals 13 and 13 are first lower mounts attached to the lower end of the first door panel 9, and 14 and 14 are first.
2 is a first slider attached to the lower attachment metal 13, 13. Reference numeral 15 is a sill of the hall, 16 is a lower surface guide groove for guiding the first slider 14 provided on the hoistway side 8 on the lower surface of the sill 15, and 17a, 17b, 17c are lower surfaces forming the lower surface guide groove 16. At the guide groove forming portion, as shown in FIG. 7, the lower end portion of the first door panel 9 is slidably supported by the sill 15 via the guide groove forming portion.

18 is a second door panel, 10b, 10b
Is a second upper mounting metal attached to the upper part of the second door panel 18, 11b, 11b is a second upper mounting metal 10b,
A second grooved wheel mounted on 10b, and 19 is a second guide rail for suspending and rolling the second door panel 18 via the second upper mounting metal 10b and the second grooved wheel 11b. ..

Reference numeral 20 is a second lower mounting metal attached to the lower end of the second door panel 18, and 21 is a second lower mounting metal which is attached to the second lower mounting metal 20 and slides in the lower surface guide groove 16.
As shown in FIG. 8, the lower end of the second door panel 18 is slidably supported by the sill 15 via these sliders. Reference numeral 22 denotes a panel lower end guide groove provided at a lower end portion of the first door panel 9, 23 denotes an L-shaped third lower attachment metal having one end attached to a lower end portion of the second door panel 18, and 24 denotes a third. Is a third slider that is attached to the other end of the lower mount metal 23 and slides in the panel lower end guide groove 22. As shown in FIG. 9, the lower end of the second door panel 18 is It is slidably supported on the lower end of the first door panel 9.

Next, the operation of the support mechanism constructed as described above will be described. First, opening and closing the first door panel 9
First grooved wheel 11 mounted on the upper part of the door panel 9 of the vehicle
a rolls on the track of the first guide rail 12 and the first slider 14 attached to the lower portion of the first door panel 9 slides in the lower guide groove 16 of the sill 15. It is carried out.

On the other hand, when the second door panel 18 is opened and closed, the second grooved wheel 11b mounted on the upper portion of the second door panel 18 rolls on the track of the second guide rail 19 and at the same time. The second attached to the lower part of the second door panel 18
The slider 21 is slid in the lower surface guide groove 16 of the threshold 15. At this time, the third slider 24 attached to the lower portion of the second door panel 18 slides in the panel lower end guide groove 22 provided at the lower end portion of the first door panel 9.

[0010]

The support mechanism (FIGS. 6 to 9) configured as described above eliminates the guide groove on the upper surface of the sill shown in FIG. 5, and foreign matter such as pebbles and dust is contained in this guide groove. This prevents the opening and closing operation of the door panel from becoming defective. However, when the floor is vibration-isolated with springs or rubber, the distance between the lower end of the door panel and the sill surface is not always constant. Therefore, in order to deal with the above change, the first and second sliders 14 and 21 are made smaller in the vertical direction so that they can move in the vertical direction, and the lower surface guide groove forming portions 17a, 1 are formed.
The lower surface guide groove forming portions 17a and 17b must be cut off so that 7b does not come into contact with the first and second lower mounting metal pieces 13 and 20. Also, for some reason, the threshold 1
When 5 is deformed and distorted, the first and second lower mounting metal pieces 13 and 20 may come into contact with the lower surface guide groove forming portions 17a and 17b. Furthermore, if a flooring error occurs in the sill 15 and the car, the toes of the passenger may be caught in the lower surface guide groove 16 and may be dangerous.

The present invention has been made in order to solve the above problems, and foreign matter does not get caught in the guide groove of the sill of the hall, and the distance between the lower end of the door panel and the sill changes. Another object is to obtain a support mechanism for the lower end of the entrance door of the elevator that can absorb this change.

[0012]

A support mechanism for a lower end portion of an elevator door according to the present invention mounts a lower support metal having wheels on a hoistway side of a door panel on the hoistway side and attaches the lower support metal to the lower support metal. A tensioning mechanism for urging upward is provided, and a guide groove for moving wheels provided on the lower support is provided on the lower surface hoistway side of the sill.

[0013]

The spring of the tension mechanism urges the lower support member upward to press the wheel against the sill, and supports the lower end of the door panel. Even if the gap between the door panel and the sill changes when opening and closing the door panel, the amount of change is absorbed.

[0014]

1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a vertical sectional view of FIG. It should be noted that the same or corresponding parts as those of the conventional example shown in FIGS. Reference numerals 10a and 10b denote upper mounts attached to the upper portions of the first and second door panels 9 and 18, respectively, to which the first and second grooved wheels 11a and 11b are attached, respectively. Door panels 9 and 18 of rails 12 and 1
It hangs at 9 and rolls.

25, 25 is a lower part 2 of the first door panel 9
The first lower mounts 26, 26 attached to the points are tensioning devices attached to the first lower mounts 25, 25,
The first lower mounting members 25, 25 are urged upward. Two
Reference numerals 7 and 27 denote first wheels attached to the lower ends of the first lower attachment members 25 and 25, which are biased upward together with the first lower attachment members 25 and 25 by tensioning devices 26 and 26. .. Reference numeral 28 denotes a first guide groove that is provided on the lower surface of the sill 15 so as to open downward, has a track along the opening / closing direction of the first and second door panels 9 and 18, and has the first wheels 27 and 27. Move to rotate. Reference numerals 29a and 29b are guide portions provided on both sides of the first guide groove 28.

Reference numeral 30 denotes a second guide groove provided at a lower end portion of the second door panel 18, and reference numeral 31 is attached to the sill 15 and is urged upward by a constant pressure so that the second guide groove 30 is provided.
It is the 2nd wheel which rotates and moves inside. 32 is a third guide groove provided at the lower end of the first door panel 9, 33 is a second lower attachment metal attached to the lower end of the second door panel 18, and 34 is a second lower attachment metal 33. Mounted on the
It is a third wheel that moves in the third guide groove 32.

FIG. 3 is an exploded perspective view in which an essential part of FIG. 1 is enlarged. Reference numeral 35 denotes a main body of the tensioning device 26 fixed to the lower end portion of the first door panel 9, 36 denotes a bottom plate of the main body 35, 37 has one end fixed to the mounting metal 25, and the convex portion 37a at the other end has the main body 3
5, a sliding lid that fits into the first vertical groove 35a and slides,
8 is attached to the sliding lid 37 and is attached to the second upper and lower grooves 3 of the main body 35.
It is a sliding portion which is fitted into 5b and 35b and slides. 39
Is a helical spring, one end of which is in contact with the sliding lid 37 and the other end of which is in contact with the bottom plate 36, and biases the sliding lid 37, the mounting metal 25, and the first wheel 27 upward.

FIG. 4 is an exploded perspective view showing an enlarged main part of FIG. 40 is a wheel support part attached to the sill 15, 41
Is a wheel up-and-down moving part that supports the second wheel 31 and is rotatably supported by the screw 42 on the wheel supporting part 40.
Reference numeral 43 denotes a temple winding spring which is interposed between the wheel support portion 40 and the wheel vertical movement portion 41 and biases the second wheel 31 upward.

Next, the operation of the present invention configured as described above will be described with reference to FIGS. First the first door panel 9
Is opened and closed, the first grooved wheels 11a, 11a mounted on the upper part thereof roll along the guide rails 12,
The first wheels 27, 27 attached to the lower part rotate and move along the first guide groove 28 of the sill 15. At this time,
Since the main body 35 of the tension device 26 is fixed to the lower end portion of the first door panel 9, the first wheels 27, 27 are pulled up in the direction of the first door panel 9 by the force of the crane winding spring 39, and the crane winding is performed. Within the effective contraction amount of the spring 39, the threshold 1
The change in the gap between 5 and the lower end of the first door panel 9 is absorbed.

Next, when the second door panel 18 is opened and closed, the second grooved wheels 11b, 11 mounted on the upper portion of the second door panel 18 are opened and closed.
b rolls along the second guide rail 19, and the second guide groove 30 of the second door panel 18 rolls along the second wheel 31 of the sill 15. At this time, since the second wheel 31 is biased upward by the force of the temple winding spring 43 with the screw 42 as the fulcrum, the change in the gap between the sill 15 and the lower end portion of the second door panel 18 is absorbed. It on the other hand,
The third wheel 34 also rolls along the third guide groove 32 in the lower portion of the first door panel 9.

In the above embodiment, the case where the spiral wound springs are used as the springs 39 and 43 has been described, but a leaf spring or rubber may be used as long as it has elasticity. In addition, the wheels 31 provided with the second door panel 18 on the sill 15
Although the case of supporting by means of is shown, it may be supported by means of a mounting metal or the like.

[0022]

As is apparent from the above description, since the present invention has the tensioning device provided on the lower mount of the first door panel, even if the distance between the lower end of the door panel and the sill changes. It is possible to cope with the change in the gap, and it is also possible to cope with the vibration-proof basket floor. In addition, since a guide groove is provided on the lower surface of the sill, foreign matter will not be caught in the guide groove of the sill of the hall, and this guide groove is protected by the guide part, so even if the landing is poor You won't get caught.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of FIG.

FIG. 3 is an enlarged perspective view of a main part of FIG.

FIG. 4 is an enlarged perspective view of another main part of FIG.

FIG. 5 is a perspective view showing an example of a conventional support mechanism for a lower end of an elevator door.

FIG. 6 is a perspective view showing an example of another support mechanism for the lower end of the conventional elevator doorway door.

7 is a sectional view of a portion A in FIG.

8 is a cross-sectional view of a B part in FIG.

9 is a cross-sectional view of a C portion of FIG.

[Explanation of symbols]

 8 Hoistway Side 9 First Door Panel 15 Sill 25 First Lower Support Metal 26 Tension Mechanism 27 First Wheel 28 Guide Groove

Claims (1)

[Claims] 1. A support mechanism for a lower end portion of an entrance / exit door of an elevator having a plurality of sliding door type door panels, the door panels slidingly opening and closing on a sill, and a wheel is provided on the hoistway side of the door panel on the hoistway side. In addition to mounting the lower support metal, a tensioning mechanism for urging the lower support metal upward is provided, and a guide groove for rolling wheels provided on the lower support metal is provided on the lower surface hoistway side of the sill. A support mechanism for the lower end of the entrance door of the elevator.