JP6781500B2 - Elevator doorway device - Google Patents

Description

The present invention relates to an elevator entrance / exit device including a shielding member.

Elevator entrances and exits are required to have smoke-shielding performance, and construction is being carried out to add smoke-shielding function to door panels using the existing three-sided frame and the sill of the landing. In this construction, a smoke shield is attached to the lower part of the door panel over the entire width direction of the door panel.

The shielding member slides along the upper surface of the sill of the landing together with the door panel as the door panel opens and closes. In addition, the length of the sill of the existing door panel is usually such that the legs of the door do not come off from the sill groove when the door panel is fully opened. Therefore, when the door panel is fully opened, the shielding member attached to the door opening side end of the door panel may fall off from the sill of the landing. At this time, when the door panel is closed, the shielding member comes into contact with the step formed at the end of the sill and is damaged.

For example, in the doorway device described in Patent Document 1, when the link mechanism provided on the door panel comes into contact with the stopper provided on the sill, the shielding member provided on the lower part of the door panel is lowered to bring the door panel and the sill together. It is closing the gap.
Further, in the doorway device described in Patent Document 2, when the door panel is fully closed, the pressing portions provided at the lower part of the door panel are pushed against each other, so that the shielding member provided at the lower part of the door panel is lowered. It closes the gap between the door panel and the threshold.
That is, in the doorway device described in Patent Document 1 and Patent Document 2, the shielding member is lowered only when the door panel is fully closed to close the gap between the door panel and the threshold, so that the shielding member is at the threshold end. It is not damaged by the step of the part.

Japanese Unexamined Patent Publication No. 2004-352397 WO2014 / 030217

However, in the doorway device described in Patent Document 1 and Patent Document 2, a complicated link mechanism must be provided in the lower part of the door panel. Further, there is a problem that the weight of the door panel increases and the load on the drive motor for opening and closing the door panel increases as much as the link mechanism is provided.

The present invention has been made to solve the above problems, and an elevator entrance / exit device that prevents damage to the shielding member when the door panel is closed from the fully open state by a lightweight and simple structure. The purpose is to obtain.

The elevator entrance / exit device according to the present invention includes a door panel that opens / closes the entrance / exit of the elevator, a shield member provided at the lower part of the entrance / exit on the landing side to guide the door panel, and a shielding member that closes the gap between the door panels, and a lower end portion of the shielding member. The door panel is fully opened or is provided at the end of the door opening side and protrudes from the sill in a state where the door panel is fully opened or nearly fully opened , so that the door panel is fully opened or is provided. The shielding member that tries to come into contact with the step at the end of the door opening when it is about to be closed from a state close to full opening has an opening / closing mechanism portion.

As a result, due to the lightweight and simple structure, when the door panel is fully opened, the shielding member at the door opening side end that protrudes from the sill is separated from the sill, and the door panel is fully opened. Since the shielding member at the door opening side end can be brought into contact with the upper surface of the sill when closed from the state, it is possible to obtain an elevator entrance / exit device that prevents the shielding member at the door opening side end from being damaged. it can.

The door panel provided with the elevator entrance / exit device according to the first embodiment of the present invention is a front view in a fully closed state. It is sectional drawing which follows the line II-II of FIG. The door panel is a front view in a fully open state. It is an enlarged view around the door opening side end portion of the door panel in FIG. It is an enlarged view around the lower part of the door panel in FIG. It is sectional drawing of the door panel along the VI-VI line in FIG. FIG. 5 is an enlarged front view of a door panel provided with an entrance / exit device having no opening / closing mechanism to explain the effect of the first embodiment in a fully open state. It is a side view along the line VIIIa-VIIIa and the line VIIIb-VIIIb of FIG.

Hereinafter, embodiments of the elevator entrance / exit device of the present invention will be described with reference to the drawings. In each figure, the same or corresponding parts are indicated by the same reference numerals, and duplicate description will be omitted. Further, in FIGS. 1 to 8, all or a part of the lower part of the panel is omitted so that the structure of the lower part of the door panel can be easily seen.
Embodiment 1.
1 and 2 are views showing a state in which the door panel including the elevator entrance / exit device is fully closed in the elevator entrance / exit device according to the first embodiment of the present invention. FIG. 1 is a front view when viewed from the hoistway side toward the landing side, and FIG. 2 is a cross-sectional view taken along the line II-II of FIG.

As shown in FIG. 1, a pair of left and right door panels 1 for opening and closing the entrance / exit of the elevator are arranged at the entrance / exit of the elevator. A door hanger 3 is fixed to the upper end of the door panel 1. A plurality of rollers 2 are attached to the door hanger 3. The roller 2 is hung on the guide rail 6. The guide rail 6 is attached to the main body 5b of the hanger case 5. The main body 5b of the hanger case 5 is attached to the building wall 4. The door panel 1 is guided so as to be opened and closed in the horizontal direction along the guide rail 6. The guide rail 6, the roller 2, and the door hanger 3 are protected by the cover 5a of the hanger case. In addition, a three-sided frame 7 is fixed to both the left and right sides and the upper part of the landing entrance (see FIG. 2).

A threshold 8 is provided on the hoistway side of the building wall 4 at the lower part of the elevator entrance / exit on the landing side. The sill 8 is provided with a sill groove 80 in the direction of the frontage of the landing entrance. At the lower part, the door panel 1 is guided so as to be opened and closed in the horizontal direction along the threshold groove 80. The legs 9 of the door and the shielding member 10 are alternately attached to the lower portion of the door panel 1 by fixing members 11 such as bolts or pins. The legs 9 of the door are inserted into the sill groove 80 of the sill 8 and guide the door panel 1. The lower end 22 of the shielding member 10 is in contact with the threshold 8. Therefore, the gap between the lower part of the door panel 1 and the upper surface 82 of the sill 8 is shielded from the landing side by the door legs 9 and the shielding member 10. The shielding member 10 slides on the upper surface 82 of the sill 8 as the door panel 1 opens and closes. The shielding member 10 is made of a flame-retardant elastic body. Among the shielding members 10, those provided at the door opening side end constitute the end shielding member 20.

As shown in FIG. 2, the door panel 1 is formed by bending a steel plate and has a C-shape having a so-called right-angled corner portion in which a part of a long side of a rectangle is opened when viewed from above. The door legs 9 and the shielding member 10 are attached to the landing side wall 1a of the door panel 1. A hoistway side wall 1b is provided at a position facing the landing side wall 1a.

Next, the elevator entrance / exit device will be described with reference to FIGS. 3 to 5. FIG. 3 is a front view when the door panel 1 is fully opened and viewed from the hoistway side toward the landing side, and FIG. 4 is an enlarged view of the vicinity of the door opening side end portion of the door panel 1 in FIG. Further, FIG. 5 is a side view when the door panel 1 is fully closed, and is an enlarged view of the periphery of the lower portion of the door panel 1 in FIG.

As shown in FIG. 3, when the door panel is fully opened, among the plurality of shielding members 10 on the door panel 1 that opens the doorway 90, the end shielding member 20 at the door opening side end protrudes from the threshold 8.

As shown in FIGS. 4 and 5, a hinge 30 is attached to the lower part of the landing side wall 1a of the door panel 1. The hinge 30 is composed of a fixed portion 31, a movable portion 32, and an opening / closing fulcrum 33. The fixing portion 31 is fixed to the landing side wall 1a. The movable portion 32 opens and closes with the opening / closing fulcrum 33 at the lower side as a fulcrum so that the opening is upward. An end shielding member 20 is attached to the movable portion 32 by screwing. Further, a rod-shaped member 40 is attached to the movable portion 32 on the side surface of the hinge 30 on the door opening side. The rod-shaped member 40 is bent toward the hoistway at the position of the opening / closing fulcrum 33. The rod-shaped member 40 can change its orientation together with the movable portion 32. A cam roller 14 is provided at the lower end 42 of the rod-shaped member 40. The cam roller 14 rolls so as to abut and separate from the inner surface 81 of the threshold groove 80. The cam roller 14 constitutes a rolling element. Further, the hinge 30, the rod-shaped member 40, and the cam roller 14 constitute an opening / closing mechanism portion 15.

Next, the function of the opening / closing mechanism portion 15 will be described with reference to FIGS. 5 and 6. FIG. 5 is a side view of the door panel 1 in a fully closed state. FIG. 6 is a side view of the door panel 1 in the fully open state.

As shown in FIG. 5, when the door panel 1 is fully closed, the cam roller 14 is in contact with the inner surface 81 of the threshold groove 80 at an inclination angle from the vertical direction. Therefore, the hinge 30 is closed. As a result, the lower end portion 22 of the end portion shielding member 20 comes into contact with the upper surface 82 of the threshold 8, and the hoistway side is shielded from the landing side. Even when the door panel 1 is in the process of opening and closing, if the cam roller 14 is in the sill groove 80, the end shielding member 20 is in contact with the sill 8.

As shown in FIG. 6, when the door panel 1 is fully opened or nearly fully opened, the cam roller 14 is separated from the inner surface 81 of the threshold groove 80. In this case, the weight of the cam roller 14 causes the rod-shaped member 40 to rotate, and the hinge 30 to open. As a result, the lower end portion 22 of the end portion shielding member 20 attached to the hinge 30 is separated from the upper surface 82 of the threshold 8, and a gap 50 is created.

When the door panel 1 is about to be closed from the fully open state, the lower end portion 22 of the end shielding member 20 is separated from the upper surface 82 of the threshold 8. When the closing operation of the door panel 1 continues and the cam roller 14 rides on the inner surface 81 of the sill groove 80, the lower end portion 22 of the end shielding member 20 is pressed against the upper surface 82 of the sill 8 as shown in FIG. At this time, since the end shielding member 20 is sufficiently inside from the door opening side end of the sill 8, the end shielding member 20 comes into contact with the step at the door opening side end of the sill 8 and is damaged. There is no.

The cam roller 14 is greatly extended from the extension line of the inner surface 81 of the threshold groove 80 so that the cam roller 14 can ride on the inner surface 81 of the threshold groove 80 again when the door panel 1 is about to be closed from the fully opened state. A stopper is provided to prevent deviation. In the first embodiment, the opening / closing fulcrum 33 is provided with a stopper (not shown) for stopping the rotation of the movable portion 32, but a stopper for stopping the rotation of the rod-shaped member 40 may be provided at the lower end of the landing side wall 1a of the door panel 1. Good. Further, a stopper may be provided on the side surface of the end portion of the sill 8 to prevent the cam roller 14 from greatly deviating from the sill groove 80. It is desirable that the central axis of the cam roller 14 is in a region on the extension line of the threshold groove 80.

7 and 8 show an enlarged view of the lower part of the entrance / exit device having the shielding member 10 at the end, which is not provided with the opening / closing mechanism portion 15, when the door panel 1 is in the fully open state, and is compared with the first embodiment. .. FIG. 7 is a front view. FIG. 8 is a side view along the VIIIa-VIIIa line and the VIIIb-VIIIb line of FIG.

As shown in FIG. 7, when the door panel 1 is in the fully open state, the door panel 1 projects in the door opening direction from the door opening side end of the threshold 8. That is, a part of the shielding member 10 arranged at the door opening side end of the door panel 1 protrudes from the threshold 8. At this time, the shielding member 10 is deformed with the vicinity of the end portion of the threshold 8 as a boundary, and as shown by the solid line in FIG. 8, the lower end portion 12a of the shielding member 10 protruding from the threshold 8 is the threshold 8. It is below the upper surface 82 of. Further, as shown by the broken line in FIG. 8, the lower end portion 12b of the shielding member 10 whose portion does not protrude from the threshold 8 is in contact with the upper surface 82 of the threshold 8.

In this way, the lower end portion 12a of the shielding member 10 may fall off from the upper surface 82 of the threshold 8. Therefore, when the door panel 1 is closed from the fully open state, the shielding member 10 comes into contact with the step at the end of the sill 8 on the door opening side and is damaged. As described above, in the doorway device having the shielding member 10 at the door opening side end portion without the opening / closing mechanism portion 15, it is not possible to prevent the shielding member 10 from deteriorating at an early stage.

As described above, the elevator entrance / exit device according to the first embodiment has a gap between the door panel 1 that opens and closes the elevator entrance / exit 90 and the threshold 8 and the door panel 1 that are provided at the lower part of the entrance / exit 90 on the landing side and guide the door panel 1. It has a shielding member 10 that closes 50, and an opening / closing mechanism portion 15 having a hinge 30 that brings the lower end portion 22 of the shielding member 10 into contact with or separated from the threshold 8.

Thereby, due to the lightweight and simple structure, it is possible to obtain an elevator entrance / exit device that prevents the shielding member from being damaged when the door panel is closed from the fully open state.

Further, a plurality of shielding members 10 are provided along the direction in which the door panel 1 is guided, and the end shielding member 20 provided on the door opening side has an opening / closing mechanism portion 15.
As a result, when the door panel 1 is in the fully open state, the end shielding member 20 is separated from the threshold 8 with respect to the end shielding member 20 protruding from the threshold 8, and when the door panel 1 is closed, the end shielding member 20 Can be brought into contact with the upper surface 82 of the threshold 8, so that the end shielding member 20 can be prevented from being damaged.

Further, the lower end portion 22 of the end shielding member 20 having the opening / closing mechanism portion 15 contacts the sill 8 when the hinge 30 is closed, and is separated from the sill 8 when the hinge 30 is open. .. This makes it possible to prevent damage to the end shielding member 20 when the door panel 1 is closed by the lightweight and simple hinge 30.

Further, the hinge 30 has a fixed portion 31 fixed to the door panel 1 and a movable portion 32 that opens and closes with respect to the fixed portion 31, and the opening / closing mechanism portion 15 further has a rod-shaped member 40 and a cam roller 14, and has a rod shape. The member 40 is provided in the movable portion 32 of the hinge 30, the cam roller 14 is provided in the lower end 42 of the rod-shaped member 40, is guided along the threshold groove 80 provided in the threshold 8, and the cam roller 14 is positioned in the threshold groove 80. If this is the case, the lower end 22 of the end shielding member 20 is in contact with the threshold 8, and if the cam roller 14 is separated from the threshold groove 80, the lower end 22 of the end shielding member 20 is in contact with the threshold 8. It is separated from the threshold 8.
As a result, damage to the end shielding member 20 can be prevented when the door panel 1 is closed by the simple cam roller 14, the rod-shaped member 40, and the hinge 30.

Further, the rotation axis of the cam roller 14 has an inclination angle with respect to the vertical direction when it is located in the threshold groove 80. As a result, when the cam roller 14 is separated from the threshold groove 80, the central axis of the cam roller 14 moves in the vertical direction due to the weight of the cam roller 14, so that the hinge 30 is automatically opened via the rod-shaped member 40. The end shielding member 20 can be separated from the threshold 8. As a result, when the door panel 1 reaches the door opening side, the hinge 30 is automatically opened by the weight of the cam roller 14, and when the door panel 1 is closed, damage to the end shielding member 20 can be prevented. it can.

As a result, the end shielding member 20 is automatically separated from the threshold 8 in a state where the door panel 1 is fully opened or nearly fully opened only by attaching to the door panel 1 without newly adding special power. There is. Therefore, when the door panel 1 is closed from the fully opened state, it is possible to prevent the end shielding member 20 from coming into contact with the door opening side end of the threshold 8 and being damaged. Therefore, the frequency of replacement of the end shielding member 20 is reduced, and the elevator entrance / exit device provided with the end shielding member 20 can be used for a long period of time.

Further, since the elevator entrance / exit device of the first embodiment is not a link mechanism in which the shielding member is lowered by the stopper provided in the threshold groove 80, the link mechanism is clogged with foreign matter such as dust in the threshold groove 80. Does not cause malfunction. In addition, the link mechanism is not damaged.

Further, in the elevator entrance / exit device of the first embodiment, since it is not necessary to attach the sill extension guide to the sill 8 fixed to the floor of the building wall 4, a screw hole for attaching the sill extension guide is provided. No need to process.

The rod-shaped member 40 is bent at an appropriate angle so that the cam roller 14 can ride on the threshold groove 80 again after the cam roller 14 is separated from the threshold groove 80.

Further, the shape of the rolling element is not limited to a cylinder as long as it abuts on the inner surface 81 of the threshold groove 80 and rolls freely, and may be spherical, for example.

Further, if the lower end portion 22 of the end shielding member 20 can be separated from the threshold 8 when the door panel 1 is fully opened, the installation position of the opening / closing mechanism portion 15 is not the door opening side end portion of the door panel 1. You may.

Further, the end shielding member 20 having the opening / closing mechanism portion 15 may have one long shape in the frontage direction of the threshold 8. In this case, the legs 9 of the door and the end shielding member 20 can be displaced back and forth in a direction perpendicular to the longitudinal direction of the threshold 8.

1 door panel, 8 sill, 10 shielding member, 12, 12a, 12b, 22 lower end of shielding member, 14 cam roller (rolling body), 15 opening / closing mechanism, 20 end shielding member (shielding member), 30 hinge, 31 fixed Part, 32 movable part, 40 rod-shaped member, 42 lower end of rod-shaped member, 50 gap, 80 sill groove, 90 doorway.

Claims (5)

A door panel that opens and closes the entrance and exit of the elevator,
A sill provided at the lower part of the entrance on the landing side to guide the door panel and a shielding member for closing the gap between the door panels.
It has an opening / closing mechanism portion having a hinge that brings the shielding member into contact with the sill or separates it from the sill.
When the door panel is provided at the door opening side end and the door panel is projected from the threshold in a state of being fully open or close to full open, the door panel is to be closed from a state of being fully open or close to full open. The shielding member that tries to come into contact with the step is an elevator entrance / exit device having the opening / closing mechanism portion. The lower end of the shielding member having the opening / closing mechanism portion is
If the hinge is closed, it touches the threshold and
The elevator doorway device according to claim 1, wherein when the hinge is open, the elevator is separated from the threshold. The shielding member is attached to the hinge and
The hinge is closed when the door panel is fully closed or in the process of opening and closing.
The elevator entrance / exit device according to claim 2, wherein the hinge is open when the door panel is fully opened or nearly fully opened. The hinge has a fixed portion fixed to the door panel and a movable portion that opens and closes with respect to the fixed portion.
The opening / closing mechanism portion further has a rod-shaped member and a rolling element.
The rod-shaped member is provided on the movable portion of the hinge.
The rolling element is provided at the lower end of the rod-shaped member and is guided along a threshold groove provided in the threshold.
When the rolling element is located in the threshold groove, the lower end of the shielding member is in contact with the threshold.
The elevator entrance / exit device according to any one of claims 1 to 3, wherein when the rolling element is separated from the threshold groove, the lower end portion of the shielding member is separated from the threshold. The elevator entrance / exit device according to claim 4, wherein the rotation axis of the rolling element has an inclination angle with respect to the vertical direction when it is located in the threshold groove.

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