KR20130124367A - Elevator landing door device - Google Patents

Abstract

In the landing door apparatus of an elevator, the door side door pocket closure part is provided in the door pocket side edge part of the landing door main body. The vertical frame of the landing three-way frame is provided with a vertical frame closure portion in which the door-side door pocket closure portion abuts when the landing door body is fully closed. At least one of the door side door pocket closure portion and the vertical frame closure portion is provided with a door pocket hermetic member made of an elastic body. The contact surface between the door-side door pocket closure part and the vertical frame closure part is a direction in which the door pocket airtight member elastically deforms due to the force exerted by the landing door main body by the pressure difference between the landing and the hoistway. It is inclined with respect to the opening and closing direction of.

Description

Elevator door device {ELEVATOR LANDING DOOR DEVICE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a landing door apparatus for opening and closing a landing door of an elevator, and more particularly, to a structure for reducing draft noise.

In general, in an elevator with a high lifting height, a pressure difference occurs between a landing and a hoistway, so that air flows in and out of the gap around the landing door, resulting in a blow noise called a draft noise. Sound (sound of gas, gas, etc.) is produced. On the other hand, in the conventional draft suppression apparatus, the air flow around the landing door is weakened by providing the opening part different from a landing hall in a hoistway, and controlling the airflow in a hoistway (for example, patent document 1). Reference).

Moreover, in the conventional elevator entrance / exit apparatus, the clearance gap between a landing door and a three way frame of a landing door is blocked by the some flame-retardant board at the time of full close of a landing door. This prevents the high speed airflow generated in the hoistway from passing through the clearances of the landing door by lifting the car and reducing the occurrence of the blowing sound caused by the high speed airflow (see, for example, Patent Document 2). ).

Moreover, in the conventional elevator, the sound insulation device which prevents the clearance around the car door at the time of full close of a car door is provided between a car compartment and a car door. As a result, intrusion into the car of noise generated when the car travels at high speed is reduced (see Patent Documents 3 and 4, for example).

Patent Document 1: Japanese Patent Application Laid-Open No. 4-213579 Patent Document 2: Japanese Patent Application Laid-Open No. 6-72681 Patent Document 3: Japanese Patent Application Laid-Open No. 6-247675 Patent Document 4: Japanese Patent Application Laid-Open No. 10-120349

In the conventional draft suppressing apparatus described in Patent Document 1, since the openings need to be newly provided in the building, there is a possibility that it may interfere with the architectural layout and the design, and a large-scale control device is also required, resulting in high cost.

Moreover, in the conventional elevator doorway apparatus shown in patent document 2, in order to adhere a smoke shield plate to a three-way frame, it is necessary to enlarge the closure force (closing force) of a landing door apparatus, and the load of a landing door apparatus Increase. If the contact state of the shielding plate is insufficient, some gaps occur in part, and draft noise occurs in that portion, and therefore, a sufficient effect cannot be obtained. For this reason, the smoke shield plate needs to be pushed to the three-way frame with a pressing force of a certain degree over the entire circumference of the landing door, and it is necessary to increase the closing force of the landing door device.

In addition, in the conventional elevators shown in Patent Literatures 3 and 4, the draft noise caused by the pressure difference between the landing and the hoistway is not considered. Therefore, even if these structures are applied to the landing door apparatus, the draft noise Cannot be effectively reduced.

This invention is made | formed in order to solve the above subjects, Comprising: It aims at obtaining the elevator landing door apparatus which can reduce draft noise by a simple structure, suppressing the increase of a closure force.

The boarding point door apparatus of the elevator which concerns on this invention is provided with the board | substrate three-way frame which has the vertical frame provided in the right and left of the boarding point entrance, and the upper frame provided in the upper part of the boarding point entrance, and the boarding point door main body which opens and closes the boarding point entrance. The three-way frame is provided with a three-way frame side closure portion, and the landing door body has a door-side closure that abuts the three-way frame side closure portion and closes the gap between the landing three-way frames at the time of fully closing the landing door body. The door side closure part includes a door side door pocket closure part provided at the door pocket side end of the landing door main body, and the three-way frame side closure part is provided in the vertical frame, and the door side door pocket closure when the landing door body is fully closed. It includes a vertical frame occluded portion abuts, At least one of the side door pocket closure portion and the vertical frame closure portion is provided with a door pocket airtight member made of an elastic body, and the contact surface between the door side door pocket closure portion and the vertical frame closure portion is between the platform and the hoistway. The door pocket hermetic member is inclined with respect to the opening / closing direction of the landing door main body in the direction in which the door pocket hermetic member is elastically deformed by the force received by the landing door main body by the pressure difference of the pressure.

In the elevator door apparatus of the present invention, when the landing door main body is forced by the pressure difference between the landing and the hoistway, the door pocket airtight member is elastically deformed and the airtightness is increased, thereby increasing the closure force. While suppressing, a simple structure can reduce draft noise.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic block diagram which shows the elevator which concerns on Embodiment 1 of this invention.
FIG. 2 is a front view illustrating the lower landing door apparatus of FIG. 1.
3 is a cross-sectional view taken along the line III-III in Fig.
4 is a cross-sectional view taken along the line IV-IV in Fig.
FIG. 5 is a cross-sectional view illustrating a state in which pressure is applied to the landing door main body of FIG. 3 from the landing side.
6 is a cross-sectional view showing a state in which pressure is applied from the landing side to the landing door main body of FIG. 4.
It is explanatory drawing which compares the state immediately before fully closing of the landing door main body of FIG. 3, and the state at the time of fully closing.
It is explanatory drawing which shows the comparative example in which the contact surface of the door pocket airtight member of FIG. 7 and the vertical frame closure part is perpendicular to the front surface of a landing door main body.
It is explanatory drawing comparing and showing the state where the landing door main body of FIG. 3 was installed in the reference position, and the state which shifted from the reference position.
It is explanatory drawing which shows the comparative example in which the contact surface of the door pocket airtight member of FIG. 9 and the vertical frame closure part is perpendicular to the front surface of a landing door main body.
11 is a horizontal cross-sectional view of the upper landing door device of FIG.
12 is a longitudinal cross-sectional view of the upper landing door device of FIG.
It is sectional drawing which shows the state in which the pressure was applied to the boarding point door main body of FIG.
FIG. 14 is a cross-sectional view illustrating a state in which pressure is applied to the landing door main body of FIG. 12 from the hoistway side. FIG.
Fig. 15 is a horizontal sectional view of the landing door apparatus of the elevator according to the second embodiment of the present invention.
Fig. 16 is a horizontal sectional view of the landing door apparatus of an elevator according to Embodiment 3 of the present invention.
17 is a longitudinal cross-sectional view of the landing door apparatus of FIG. 15 or FIG.
18 is a plan view of the landing door apparatus of FIG. 17.
19 is a cross-sectional view illustrating an example in which the upper gastight member of FIG. 17 is applied to the upper landing door device of FIG. 1.
20 is a plan view illustrating the upper landing door apparatus of FIG. 19.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

Embodiment 1

FIG. 1: is a schematic block diagram which shows the elevator which concerns on Embodiment 1 of this invention, In this example, the shuttle elevator is shown. In the shuttle elevator, the car reciprocates (directly operates) between at least one low floor stop floor and at least one high floor stop floor.

In the figure, the machine room 2 is provided in the upper part of the hoistway 1. The machine room 2 is provided with a hoisting machine (drive device) 3, a deflector sheave 4, and a traveling control device (control panel) 5. The traction machine 3 has a drive sheave 6, a traction machine motor for rotating the drive sheave 6, and a traction machine brake (electromagnetic brake) for braking the rotation of the drive sheave 6. [

Suspension means 7 are wound around the drive sheave 6 and the deflector sheave 4. As the suspension means 7, a plurality of ropes or a plurality of belts are used. A car 8 is connected to the first end of the suspension means 7. A counterweight 9 is connected to the second end of the suspension means 7.

The car 8 and the counterweight 9 are suspended in the hoistway 1 by the suspension means 7, and the hoist 3 lifts the inside of the hoistway 1. The travel control device 5 controls the travel of the car 8 by controlling the hoist 3.

The car 8 is provided with a car door device 10 for opening and closing the car door. The lower platform stop device 11 is provided in the lower floor stop layer. The upper landing door device 12 is provided in the high floor stop layer. The landing door devices 11 and 12 engage and open with the car door device 10 by engaging the car door device 10 when the car 8 is laid.

2 is a front view showing the lower landing door apparatus 11 of FIG. 1, FIG. 3 is a sectional view taken along the line III-III of FIG. 2, and FIG. 4 is a sectional view taken along the line IV-IV of FIG. The door apparatus of the 2 door center open type | mold is shown.

The platform three-way frame 13 is provided at the platform entrance. The boarding point three-way frame 13 has a pair of vertical frames 14 provided in the right and left of the boarding point entrance and exit, and the upper frame 15 provided in the upper part of the boarding point entrance. The upper frame 15 is fixed horizontally between the upper ends of the vertical frames 14.

The landing door is opened and closed by a pair of landing door main bodies (door panels) 16. A hanger rail (not shown) for guiding opening and closing of the landing door main body 16 is provided at the upper part of the landing entrance. The landing door main body 16 is suspended from the hanger rail, and is opened and closed in conjunction with the car door device 10.

Each landing door main body 16 has a front face 16a that faces the landing surface, and a back surface 16b that faces the lifting path 1. The door stop rubber 17 is fixed to the edge part opposite the door pocket of the back surface 16b of each landing door main body 16. As shown in FIG. The door stop rubber 17 is sandwiched between the door stop rubber pressing member 18 fixed to the rear face 16b and the landing door main body 16.

The door stop rubber 17 is disposed continuously in the entire height direction of the landing door main body 16. As a result, when the landing door main body 16 is fully closed, the door stop rubbers 17 abut each other, and the gap between the landing door main bodies 16 is sealed.

The reinforcement board 19 is being fixed to the lower end part of the back surface 16b of each landing door main body 16. As shown in FIG. The legs 20 of the plurality of doors are fixed to the reinforcing plate 19. The legs 20 of the doors are arranged at intervals in the width direction of the landing door main body 16.

In addition, the lower hermetic member 21 is fixed to the reinforcing plate 19. The lower hermetic member 21 is sandwiched between the lower pressing member 22 fixed to the reinforcing plate 19 and the reinforcing plate 19. In addition, the lower hermetic member 21 is disposed continuously in the entire width direction of the landing door main body 16. In addition, the lower airtight member 21 is comprised by elastic bodies, such as rubber | gum, for example.

The platform threshold 23 is provided below the platform entrance. A threshold groove 23a is provided in the landing threshold 23. The leg 20 of the door is inserted into the threshold groove 23a. The leg 20 of the door slides inside the threshold groove 23a during the opening and closing operation of the landing door main body 16.

The lower hermetic member 21 is in contact with the upper surface of the landing threshold 23 from the landing side rather than the threshold groove 23a. As a result, the gap between the lower end of the landing door main body 16 and the upper surface of the landing threshold 23 is sealed when the landing door main body 16 is fully closed.

On the door pocket side end of each landing door main body 16, the door side door pocket closing body (door side door pocket closing part) which prevents the clearance between the vertical frame 14 at the time of the closing of the landing door main body 16 ( 24) is provided. The door side door pocket occluder 24 is a door pocket shielding plate 25 having a cross-section 'L' shape fixed to the door pocket side end of the landing door body 16 and a door fixed to the door pocket shielding plate 25. It has a pocket airtight member 26.

Each door pocket shielding plate 25 is fixed to the door pocket side end surface of the landing door main body 16, and the flat-shaped fixing part 25a which protruded to the vertical frame 14 side, and the landing side of the fixing part 25a is carried out. It has a flat counterpart 25b formed by bending the end portion at a right angle to the landing doorway side. The opposing part 25b opposes the front surface 16a of the landing door main body 16 in parallel.

The door pocket hermetic member 26 is fixed to the inside of each part of the door pocket shielding plate 25. Moreover, the door pocket airtight member 26 is arrange | positioned continuously in the whole height direction of the landing door main body 16. As shown in FIG. In addition, the door pocket airtight member 26 is comprised by elastic bodies, such as rubber | gum, for example.

The vertical frame 14 is provided with a vertical frame bent portion 14a as the vertical frame closing portion that the door pocket hermetic member 26 abuts upon the closing of the landing door main body 16. In this example, the vertical frame bent portion 14a is formed by bending the end of the vertical frame 14 at an acute angle. In addition, the vertical frame bent portion 14a is continuously formed in the entire height direction of the vertical frame 14.

The contact surface of the door pocket airtight member 26 and the vertical frame bent part 14a mutually contact | connects the door pocket airtight member by the force which the landing door main body 16 receives by the air pressure difference between the boarding point and the hoistway 1. In the direction in which the 26 is elastically deformed (compressed), the inclination direction of the landing door main body 16 is inclined, respectively.

The upper end part of each landing door main body 16 is provided with the door side upper occlusion body (door side upper occlusion part) 27 which closes the clearance gap with the upper frame 15 at the time of fully closing the landing door main body 16. As shown in FIG. . The door-side upper occlusion body 27 includes an upper shielding plate 28 having an L-shaped cross section fixed to the upper end of the landing door main body 16 and an upper airtight member 29 fixed to the upper shielding plate 28. Have.

Each upper shielding plate 28 is horizontally fixed to the upper end surface of the landing door main body 16, the flat-shaped fixing portion 28a protruding toward the upper frame 15 side, and the landing side end of the fixing portion 28a. Has a flat plate facing portion 28b formed by bending at a right angle downward. The opposing part 28b opposes the front surface 16a of the landing door main body 16 in parallel.

The upper hermetic member 29 is fixed to the inside of each part of the upper shielding plate 28. Moreover, the upper airtight member 29 is arrange | positioned continuously in the whole width direction of the landing door main body 16. As shown in FIG. In addition, the upper airtight member 29 is comprised by elastic bodies, such as rubber | gum, for example.

The upper frame 15 is provided with an upper frame bent portion 15a as an upper frame closing portion to which the upper airtight member 29 abuts. That is, the upper airtight member 29 is provided in the contact part with the upper-frame bent part 15a of the door side door pocket obturator 24. As shown in FIG. In this example, the upper frame bent portion 15a is formed by bending the end of the upper frame 15 at an acute angle. The upper hermetic member 29 is slid with respect to the upper frame bent portion 15a at the opening and closing operation of the landing door main body 16.

The contact surfaces of the upper hermetic member 29 and the upper frame bent portion 15a with each other are connected to the upper hermetic member 29 by the force received by the landing door main body 16 by the pressure difference between the landing and the hoistway 1. ) Is inclined with respect to the vertical plane parallel to the opening and closing direction of the landing door main body 16 in the direction in which elastic deformation (compression) is performed.

The door side closure portion has a door side door pocket closure 24 and a door side upper closure 27. Moreover, the three-way frame side closure part has the vertical frame bending part 14a and the upper frame bending part 15a. When the landing door main body 16 is fully closed, the door side door pocket occlusion member 24 and the vertical frame bent portion 14a abut together, and the door side upper occlusion body 27 and the upper frame bent portion 15a. Abuts, and the clearance gap between the board | substrate three way frame 13 and the board | substrate door main body 16 is blocked.

Here, in a high-rise building, it is widely known that the platform of a low-rise system becomes higher than a hoistway, and the platform of a high-rise system becomes lower than a hoistway in winter. The draft noise in the landing door devices 11 and 12 is generated due to such a pressure difference. However, in summer, the temperature difference between a platform and a platform is relatively small, and a problem of draft noise does not arise in many cases.

FIG. 5 is a cross-sectional view showing a state in which pressure is applied from the landing side to the landing door main body 16 of FIG. 3, and FIG. 6 is a cross-sectional view showing a state in which pressure is applied from the landing side to the landing door main body 16 of FIG. 4. When the landing side of the lower landing door device 11 becomes higher than the landing 1 side, the landing door main body 16 is a draft phenomenon and the pressure from the landing side to the landing 1 side, that is, a positive draft The pressure is slightly displaced to the hoistway 1 side.

As a result, the door pocket hermetic member 26 is pushed to the vertical frame bent portion 14a to elastically deform. In addition, the upper gastight member 29 is pushed to the upper frame bent portion 15a to elastically deform. Thereby, the sealing property between the boarding point door main body 16 and the boarding point three-way frame 13 improves.

7 is explanatory drawing which compares and shows the state (upper end) of the landing door main body 16 of FIG. In order to completely close the gap between the landing door main body 16 and the vertical frame 14 when the landing door main body 16 is fully closed, the door pocket hermetic member 26 is used regardless of the presence or absence of a draft phenomenon. To the vertical frame bent portion 14a to some extent.

At this time, if the bending angle θ of the vertical frame bent portion 14a is set, the pushing amount = the moving amount x sinθ of the landing door main body 16, and the pushing amount is the moving amount of the landing door main body 16 from the start of contact. Becomes smaller than

On the other hand, in Fig. 8, the contact surface between the door pocket airtight member 26 and the vertical frame bent portion 14a of Fig. 7 is perpendicular to the front face 16a (door opening and closing direction) of the landing door main body 16. It is explanatory drawing which shows a comparative example. In this case, since the pushing amount = the moving amount of the landing door main body 16, when the moving amount of the landing door main body 16 is the same, the pushing amount of the door pocket airtight member 26 is FIG. 7 rather than FIG. Becomes smaller. That is, FIG. 7 can reduce the repulsion force of the door pocket airtight member 26, and can reduce the burden of the closure force of the lower landing door apparatus 11. As shown in FIG.

9 is explanatory drawing which compares and shows the state (upper part) in which the landing door main body 16 of FIG. 3 was installed in the reference position, and the state (lower end) which shift | deviated from the reference position. Due to the influence of the dimensional error on the production or installation, the positional relationship between the landing door main body 16 and the landing three-way frame 13 is not necessarily constant.

For example, as shown in FIG. 9, when the landing door main body 16 is provided with the door pocket side (open state) rather than a reference position, the mounting position of the door pocket shielding plate 25 to the landing door main body 16 is provided. By adjusting the direction in the direction perpendicular to the opening / closing direction of the landing door main body 16 (up and down direction in FIG. 9), the door pocket airtight member 26 can be brought into close contact with the vertical frame bent portion 14a more reliably.

In the adjustment of the mounting position of the door pocket shielding plate 25, for example, the door pocket shielding plate 25 is fixed to the landing door main body 16 by a plurality of screws, and a hole passing through the screw is provided. It can be performed easily by setting it as (long length).

On the other hand, Fig. 10 is a view showing a comparative example in which the contact surface between the door pocket airtight member 26 and the vertical frame bent portion 14a of Fig. 9 is perpendicular to the front face 16a of the landing door main body 16. It is also. In this case, a gap may arise between the door pocket shielding plate 25 and the vertical frame bent portion 14a.

FIG. 11 is a horizontal sectional view of the upper landing door device 12 of FIG. 1, and FIG. 12 is a longitudinal cross-sectional view of the upper landing door device 12 of FIG. 1, and shows cross sections corresponding to FIGS. 3 and 4, respectively. In the upper landing door apparatus 12, the vertical frame bending part 14a is formed by bending the edge part of the vertical frame 14 at an obtuse angle. As a result, the contact surface between the door pocket airtight member 26 and the vertical frame bent portion 14a is inclined in the reverse direction as in the case of the lower landing door apparatus 11.

In addition, the upper frame bent portion 15a is formed by bending the end of the upper frame 15 at an obtuse angle. As a result, the upper airtight member 29 and the upper frame bent portion 15a are inclined in the opposite direction as in the case of the shaving lower landing door device 11. The other configuration is the same as the lower landing door apparatus 11.

As described above, in the upper landing door device 12, the hoistway 1 is higher than the hoistway in the winter season. FIG. 13 is a cross-sectional view illustrating a state in which pressure is applied to the landing door main body 16 of FIG. 11 from the hoistway 1 side, and FIG. 14 is a state in which pressure is applied to the landing door main body 16 of FIG. 12 from the hoistway 1 side. It is sectional drawing which shows.

When the hoistway 1 side of the upper hoistway door apparatus 12 becomes higher than the hoistway side, the hoistway door main body 16 will generate the pressure from the hoistway 1 side to the hoistway side by a draft phenomenon, ie, a negative pressure. Under the draft pressure, it is slightly displaced to the landing side.

As a result, the door pocket hermetic member 26 is pushed to the vertical frame bent portion 14a to elastically deform. In addition, the upper gastight member 29 is pushed to the upper frame bent portion 15a to elastically deform. Thereby, the sealing property between the boarding point door main body 16 and the boarding point three-way frame 13 improves.

According to the elevator door apparatuses 11 and 12 of such an elevator, draft noise can be reduced by a simple structure, suppressing the increase of a closure force.

In addition, when the landing door main body 16 is heated from the landing side at the time of a fire, thermal deformation of the landing door main body 16 is prevented by engaging the door side door pocket occlusion member 24 with the vertical frame 14. Thus, intrusion of flame into the hoistway 1 is prevented. In other words, the door-side door pocket closure 24 also functions as a fireproof member.

In addition, in Embodiment 1, although the door side door pocket occlusion body 24 and the door side upper occlusion body 27 were provided in both the lower boarding point door apparatus 11 and the upper boarding point door apparatus 12, only in either one. You may provide. For example, when the problem of draft noise in a high-rise system is small, it is not necessary to implement the draft noise countermeasure to the upper landing door device 12.

Moreover, in Embodiment 1, although the door pocket airtight member 26 and the upper airtight member 29 were provided in the door side closure part, it is provided in the three-sided frame side closure part side, or it is provided in the door side closure part and the three-sided frame side closure part. You may provide in both.

Embodiment 2 Fig.

Next, FIG. 15 is a horizontal sectional view of the boarding point door apparatus of the elevator by Embodiment 2 of this invention, and has shown the cross section corresponded in FIG. 15 shows an example of application to the lower landing door apparatus 11 of FIG. In the figure, the door pocket hermetic member 31 has a fin portion 31a which abuts against the vertical frame bent portion 14a when the landing door body 16 is fully closed.

The door pocket hermetic member 31 is disposed continuously in the entire height direction of the landing door main body 16. In addition, the door pocket airtight member 31 is comprised by elastic bodies, such as rubber | gum, for example. The other configuration is the same as in the first embodiment.

Even when such door pocket airtight member 31 is used, when the landing door main body 16 receives a static draft pressure, the pin part 31a elastically deforms (bending deformation), and the landing door main body 16 and the landing three directions The sealing property with the frame 13 improves. Therefore, the draft noise can be reduced by a simple configuration while suppressing an increase in the closing force.

Moreover, since the repulsion force of the door pocket airtight member 31 is reduced by providing the pin part 31a in the door pocket airtight member 31, the burden of the closing force of the lower landing door apparatus 11 can be made smaller. Can be.

Embodiment 3:

Next, FIG. 16 is a horizontal sectional view of the boarding point door apparatus of the elevator by Embodiment 3 of this invention, and has shown the cross section corresponded in FIG. In addition, in FIG. 16, the application example to the lower boarding point door apparatus 11 of FIG. 1 is shown.

The door pocket shielding plate 32 as a door side door pocket closure part is provided in the door pocket side edge part of each landing door main body 16. As shown in FIG. Each door pocket shielding plate 32 is fixed to the door pocket side end surface of the landing door main body 16, and the flat-shaped fixing part 32a which protruded to the vertical frame 14 side, and the landing side of the fixing part 32a is provided. It has the flat-shaped inclination part 32b formed by bending an edge part at an obtuse angle to the boarding point entrance and exit side. The inclined portion 32b opposes the vertical frame bent portion 14a in parallel.

The door pocket hermetic member 31 is fixed to the vertical frame bent portion 14a. The vertical frame closure part of Embodiment 3 has the vertical frame bending part 14a and the door pocket airtight member 31. As shown in FIG. At the time of full close of the landing door main body 16, the pin part 31a abuts on the inclination part 32b. The other configuration is the same as that of the second embodiment.

Thus, even when the door pocket airtight member 31 is attached to the vertical frame 14 side, when the landing door main body 16 receives a static draft pressure, the fin part 31a is elastically deformed by the inclination part 32b. (Bending deformation), the sealing property between the landing door main body 16 and the landing three-way frame 13 improves. Therefore, the draft noise can be reduced by a simple configuration while suppressing an increase in the closing force.

Moreover, since the repulsion force of the door pocket airtight member 31 is reduced by providing the pin part 31a in the door pocket airtight member 31, the burden of the closing force of the lower landing door apparatus 11 can be made smaller. Can be.

In addition, although the application example to the lower landing door apparatus 11 was shown in Embodiment 2, 3, when it applies to the upper landing door apparatus 12, as shown in FIG. 11, the door pocket airtight member 31 and What is necessary is just to incline the contact surface with the vertical frame bending part 14a or the inclination part 32b to the opposite direction to the case of the lower boarding point door apparatus 11.

Here, FIG. 17 is a longitudinal cross-sectional view of the landing door apparatus of FIG. 15 or FIG. 16, and has shown the cross section corresponded to FIG. An upper shield plate (door-side upper occlusion) 33 having a cross-section 'L' shape is fixed to the upper end of the landing door main body 16. Each upper shielding plate 33 is horizontally fixed to the upper end surface of the landing door main body 16, the flat-shaped fixing portion 33a protruding toward the upper frame 15 side, and the landing side end of the fixing portion 33a. Has a flat plate facing portion 33b formed by bending at a right angle downward. The opposing part 33b opposes the front surface 16a of the landing door main body 16.

In the upper frame 15, a supporting member 34 having a cross-section 'L' shape is fixed. On the support member 34, the upper frame occluder 35 as the upper frame occlusion portion is fixed. The upper frame occluder 35 has an upper hermetic member 36 and an upper organic bracket 37 for holding the upper hermetic member 36.

The upper hermetic member 36 has a fin portion 36a which abuts on the surface of the landing door main body 16 side of the opposing portion 33b. Moreover, the upper airtight member 36 is arrange | positioned continuously in the whole width direction of the landing door main body 16. As shown in FIG. In addition, the upper airtight member 36 is comprised by elastic bodies, such as rubber | gum, for example.

18 is a plan view of the landing door apparatus of FIG. 17. The opposing part 33b and the upper airtight member 36 are arranged inclined at a predetermined angle, not parallel to the opening / closing direction of the landing door main body 16. Moreover, the opposing part 33b and the upper airtight member 36 are arrange | positioned in parallel with each other.

In such a structure, when the landing door main body 16 receives a static draft pressure, the fin part 36a will elastically deform and the sealing property between the landing door main body 16 and the landing three way frame 13 will improve. In addition, the upper airtight member 36 does not always slide with respect to the opposing part 33b during the opening / closing operation of the landing door main body 16, but contacts the opposing part 33b only when the landing door main body 16 is fully closed. do. Thus, the closing force of the landing door apparatus can be further reduced.

FIG. 19 is a cross-sectional view illustrating an example in which the upper gastight member 36 of FIG. 17 is applied to the upper landing door device 12 of FIG. 1, and FIG. 20 is a plan view illustrating the upper landing door device 12 of FIG. 19. The upper frame occluder 35 has an upper hermetic member 36 and an upper organic bracket 38 for holding the upper hermetic member 36. The pin part 36a of the upper airtight member 36 is in contact with the surface on the opposite side to the landing door main body 16 of the opposing part 33b. The opposing part 33b and the upper airtight member 36 are arrange | positioned with respect to the front surface 16a of the landing door main body 16 at the predetermined angle in the reverse direction to FIG.

In such a structure, when the landing door main body 16 receives a sub draft pressure, the fin part 36a will elastically deform and the sealing property between the landing door main body 16 and the landing three way frame 13 will improve. In addition, the upper airtight member 36 does not always slide with respect to the opposing part 33b during the opening / closing operation of the landing door main body 16, but contacts the opposing part 33b only when the landing door main body 16 is fully closed. do. Thus, the closing force of the landing door apparatus can be further reduced.

In addition, the airtight members 26 and 29 shown in Embodiment 1 and the airtight members 31 and 36 shown in Embodiment 2 and 3 can be used combining them suitably.

In the above example, the landing door apparatus of the two-door center opening type is shown, but the type of the door apparatus is not limited to this.

In addition, although the elevator of 1: 1 roping was shown in FIG. 1, a roping system is not limited to this, For example, this invention is applicable also to the elevator of 2: 1 roping.

Moreover, although the shuttle elevator was shown in FIG. 1, this invention is applicable also to various elevators other than a shuttle elevator.

Claims (4)

Platform three-way frame having a vertical frame provided on the left and right of the platform entrance and the upper frame provided on the platform entrance, and
It is provided with a landing door body for opening and closing the landing door,
The platform three-way frame is provided with a three-way frame side closure,
The landing door main body is provided with a door side closing part that abuts the three-way frame side closing part and closes a gap between the landing three way frames when the landing door main body is fully closed.
The door side closure part includes a door side door pocket closure part provided at a door pocket side end of the landing door body,
The three-way frame side closure portion is provided in the vertical frame, and includes a vertical frame closure portion in which the door side door pocket closure portion abuts when the landing door body is fully closed.
At least one of the door side door pocket closure portion and the vertical frame closure portion is provided with a door pocket airtight member made of an elastic body,
The contact surface between the door side door pocket closure portion and the vertical frame closure portion is in a direction in which the door pocket hermetic member is elastically deformed by a force received by the landing door body by a pressure difference between the landing and the hoistway. And an elevator door apparatus of an elevator inclined with respect to the opening and closing direction of the landing door main body. The method according to claim 1,
The door side door pocket closure portion has a door pocket side mounting bracket having a cross-section 'L' shape facing the front surface of the landing door body, and the door pocket hermetic member fixed to the door pocket side mounting bracket,
The elevator door apparatus of the elevator is a vertical frame bending portion formed by bending the end of the vertical frame closing portion. The method according to claim 1,
The door pocket hermetic member is fixed to one of the door side door pocket closure portion and the vertical frame closure portion, and a fin portion which abuts on the other of the door side door pocket closure portion and the vertical frame closure portion. Platform door device of owned elevator. The method according to claim 1,
The door side closure part includes a door side upper closure part provided at an upper end of the landing door body,
The three-way frame side closure portion includes an upper frame closure portion in which the door side upper closure portion abuts when the landing door body is fully closed.
At least one of the door side upper closure portion and the upper frame closure portion is provided with an upper hermetic member made of an elastic body,
The contact surface between the door side upper closure portion and the upper frame closure portion is in a direction in which the upper hermetic member is elastically deformed by a force received by the landing door body by a pressure difference between the landing and the hoistway. The landing door device of an elevator inclined with respect to the opening and closing direction of the landing door body.

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