JP2003012259A - Elevator, and car for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure capable of improving airtightness at the part of a doorway of a car without increasing manufacturing cost or maintenance cost. SOLUTION: The surface of a door panel 13 of a car door 12 on the side of a cage 10a is inclined for an angle α to a moving direction of the car door 12. The surface of a doorway frame on the side of the car door 12 is inclined for the angle α to the moving direction of the car door 12 in such a way as to continuously get in contact with a circumferential edge of the surface of the door panel 13 on the side of the cage 10a when the car door 12 is at a total closure position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator, and more particularly to a technique for improving the airtightness of a car and a doorway portion of a landing.

[0002]

2. Description of the Related Art In recent years, attempts have been made to increase the airtightness of a car from the viewpoint of improving comfort. Increasing the airtightness of the car leads to prevention of running noise from entering the car room when the car is moved up and down. Further, in so-called ultra-high speed elevators, in recent years, attempts have been made to provide an air pressure control device in order to prevent a sudden change in air pressure in the car room, and in order to effectively operate such a control device, the airtightness of the car It is important to improve sex.

As an example of a technique for improving the airtightness of a car that meets the above-mentioned needs, for example, Japanese Patent Laid-Open No. 10-12
There is one disclosed in Japanese Patent No. 0349. In the elevator car disclosed in this publication, a contact member made of a wedge-shaped elastic body is attached to the surface of the door panel of the car door, which extends in the direction corresponding to the moving direction when the car door is opened and closed, and which is made of a wedge-shaped elastic body. Then, a contact member made of a wedge-shaped elastic body complementary to the wedge-shaped contact member is provided on the surface of the entrance / exit frame that coincides with the moving direction when the car door is opened / closed. As a result, when the car door is at the fully closed position, the contact materials are in close contact with each other and the car interior is kept airtight.

However, the manufacturing cost of the wedge-shaped adhesive material is very high. In addition, alignment of the adhesive material during such attachment operation and replacement operation when the adhesive material deteriorates with time is very troublesome. Further, in the configuration disclosed in the above publication, a wide groove may be formed in the door sill, or a step may be formed between the door sill and the car floor, which may cause the passenger to stumble.

Further, in order to improve not only noise prevention but also smoke prevention at the time of a disaster, it is desired to increase airtightness at the entrance and exit on the landing side as well. There are similar problems when trying to apply the technique described in.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a first object of the present invention is to provide a car with a simple structure without increasing manufacturing costs and maintenance costs. It is to provide a structure capable of improving airtightness.

A second object of the present invention is to achieve the first object without inconvenience to passengers when getting on and off.

A third object of the present invention is to provide a structure capable of improving the airtightness of the entrance and exit portions of both the car side and the landing side.

[0009]

In order to achieve the above-mentioned object, the present invention provides a car door that moves in a predetermined moving direction when opening and closing a doorway of a car in an elevator car, and a door provided at the doorway. The car door has a door panel whose surface on the car room side is inclined at an angle with respect to the moving direction of the car door, and the car door of the car door is provided. Side surface is inclined at an angle with respect to the moving direction of the car door so as to continuously contact the periphery of the car room side surface of the door panel when the car door is in the fully closed position. It is characterized by that.

As a method of inclining the surface of the door panel on the car room side at an angle with respect to the moving direction of the door panel, the entire car door is inclined at an angle with respect to the moving direction of the car door. It is possible to adopt a method of making it possible, or a method of inclining only the surface of the door panel of the car door on the car room side.

A contact assistant member may be provided between the surface of the door panel on the side of the cab and the surface of the door frame on the side of the door panel. In this case, the adhesion auxiliary member,
A door sill connected to the lower end of the door frame that can be attached to at least one of the surface of the door panel on the cab room side and the surface of the door frame on the door panel side, extends in the moving direction of the door panel, and A housing groove is formed to house the lower end portion, and a part of the side wall of the housing groove is in continuous contact with the lower edge of the cab-side surface of the door panel when the car door is in the fully closed position. In addition, it is also preferable to incline at an angle with respect to the moving direction of the car door.

A first seal member extending along the door panel is provided below the door panel, and a second seal member that contacts the first seal member is provided on the door sill when at least the door panel is at the fully closed position. It is also preferable that the seal member is provided and the surfaces of the first and second seal members that contact each other are inclined at an angle with respect to the moving direction of the car door. In this case, it is preferable that the second seal member is housed in the recess formed in the door sill, and the upper part thereof is covered with a cover.

The above technique can be applied not only to the entrance / exit device on the side of the car, but also to the entrance / exit device on the side of the hall with the same configuration.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

[First Embodiment] FIG. 1 is a diagram schematically showing the overall structure of an elevator. The elevator has a car 10 that moves up and down in a hoistway 1 formed in a building. The car 10 is fixed and suspended at one end of the rope 2. The rope 2 is wound around the deflecting sheave 3 and the traction sheave of the hoisting machine 4. A counterweight 5 is attached to the other end of the rope 2. By driving the hoisting machine 4, the car 10 moves up and down in the hoistway 1 while being guided by a guide rail (not shown). Further, in FIG. 1, reference numeral 30 indicates a landing (elevator hall).

Next, with reference to FIGS. 1 to 3, the structure near the entrance and exit of the elevator will be described. Note that FIG.
FIG. 2 is a view of the car 10 viewed from the direction of arrow II in FIG. 1, and is a view in which members necessary for explaining the present invention are extracted and displayed. Further, FIG. 3 is a view showing a cross section taken along the line III-III in FIG. 1, and is a view in which members necessary for explaining the present invention are extracted and displayed similarly to FIG.

The car 10 has a doorway frame 11. The doorways for boarding and exiting, which are divided by the doorway frame 11,
It is opened and closed by a pair of car doors 12 that move in the left-right direction (direction parallel to the width direction of the car). In FIG. 2, only the door panel 13 of the car door 12 is displayed. A mechanism for suspending the car door 12 and for driving the car door to open and close is provided above the doorway frame 11, but it is not directly described here because it is not directly related to the gist of the present invention. A known configuration can be applied to the suspension / driving mechanism of the car door 12.

The doorway frame 11 has a horizontal frame 11a located above the doorway and extending substantially in the left-right direction, and a pair of vertical frames 11b located on the left and right sides of the doorway and extending in the up-down direction. The lateral frame 11a has a central portion projecting toward the landing 30 side, that is, the car door 12 side, and the projecting amount becomes smaller toward both ends. That is, the surface of the horizontal frame 11a facing the car door 12 side is inclined at a predetermined angle α with respect to the moving direction D when the car door 12 is opened and closed. In the drawings, the inclination is exaggerated for easy understanding, but the angle α is preferably set to about 0.5 degrees.

The surface of the vertical frame 11b facing the car door 12 is also moved in the moving direction D (the car 10 when the car door 12 is opened and closed).
With respect to a direction parallel to the width direction of 1). That is, the doorway frame 11 formed substantially symmetrically has the front surface of the horizontal frame 11a facing the car door 12 and the car door 12 of the vertical frame 11b in the left half thereof.
The surface facing the side is located on the same plane, and even in the right half thereof, the surface of the horizontal frame 11a and the car door 12 of the vertical frame 11b.
The side-facing surface is coplanar.

Surface 1 of door panel 13 on the side of cab 10a
Similar to the surface of the doorway frame 11, 4 is inclined at a predetermined angle α with respect to the moving direction D when the car door 12 is opened and closed. Therefore, when the car door 12 is in the fully closed state, the upper portion 14a and the side portion 14b of the peripheral portion of the surface of the door panel 13 facing the car room 10a side are respectively the horizontal frame 11a and the vertical frame of the doorway frame 11. It is almost in close contact with the surface of 11b facing the car door 12 side.

A door sill (cassil) 15 is connected to the lower end of the doorway frame 11. The door sill 15 extends parallel to the moving direction D when the car door 12 is opened and closed, and
It has a housing groove 16 for housing the lower end portion of 2. A raceway groove 17 for guiding opening / closing movement of the car door 12 is further formed on the groove bottom of the accommodation groove 16. The raceway groove 17 has a shoe fixed to the lower end portion of the car door 12 (see FIGS. 1 to 3).
(Not shown) engages. The track groove 17 extends in a straight line, and therefore the car door 12 linearly translates when opening and closing (the locus does not bend during opening and closing).

Of the side walls of the housing groove 16, the side walls 16c, 16c at the positions corresponding to the entrance / exit frame 11 (the positions facing the car doors 12, 12 at the fully closed position) are as follows.
For the corresponding movement direction D when opening and closing the car door 12,
It is inclined at a predetermined angle α.

The left side wall 16c is located on the same plane as the surface of the left side portion of the horizontal frame 11a, and the right side wall 16c.
c is located on the same plane as the surface of the right side portion of the horizontal frame 11a. Therefore, when the car door 12 is fully closed, the lower portion 14c of the peripheral portion of the front surface 14 of the door panel 13 on the car room 10a side is substantially in close contact with the side wall 16c of the housing groove 16 of the door sill 15.

As described above, according to the present embodiment, the peripheral portion of the surface 14 of the door panel 13 of the car door 12 on the side of the car room 10a is the door panel 12 of the doorway frame 11.
Side surface and side wall 16c of the receiving groove 16 of the door sill 15
The airtightness of the cab 10a can be enhanced because the airtightness of the cab 10a is improved. In particular, in the case of the present embodiment, instead of providing the wedge-shaped elastic sealing members having complementary shapes closely contacting each other as in the prior art on the car door and the entrance / exit frame, the entrance / exit frame 11, which is usually formed of a metal material, Since the door panel 13 and the door sill 15 themselves are provided with the inclined surfaces, the structure can be simplified, and an increase in manufacturing cost and maintenance cost can be suppressed to a minimum. Door frame 11, door panel 13 and door sill 15
Can be easily processed into a shape based on this embodiment by a normal processing technique. For example, when manufacturing the doorway frame 11 and the door panel 13 as shown in FIG. 2, the bending angle may be slightly changed.

However, for the purpose of further improving the airtightness of the car room 10a, the car door 1 of the doorway frame 11 is
A sealing material 19 made of an elastic material such as silicon rubber may be provided on at least one of the surface on the second side and the surface 14 on the cab 10a side of the door panel 13 that is in contact with this surface. FIG. 3 shows an example in which such a sealing material 19 is provided on the door panel 13. Further, a similar sealing material may be provided on the side wall 16c of the housing groove 16 of the door sill 15 and the surface of the door panel 13 that is in contact with the side wall 16c. It is not necessary to use the wedge-shaped sealing material 19 as described in the related art, but a sealing material having a uniform cross-sectional shape (for example, a tape-shaped material) can be used, which is very low cost. . Also, the manufacture of elevators,
Since strict alignment is not required even during installation and maintenance, the sealing material 19 can be easily attached.

The inside surface of the door panel 13 is attached to the car door 12
As shown in the drawings, the car door 1 can be tilted at a predetermined angle α with respect to the moving direction D when opening and closing.
A method of inclining the whole 2 and a method of inclining only the surface 14 of the door panel 13 of the car door 12 on the side of the car room 10a are conceivable, and either method may be used. In the case of the former, the abutting part of the car doors 12 against the conventional car door (the part where the car doors contact each other when the car doors are fully closed)
Since it is only necessary to change the shape in the vicinity, there is an advantage that most parts can be shared with the conventional car door.

Referring again to FIG. 3, in addition to the doorway frame 11 and the car door 12 of the car 10, the configuration of the doorway device on the side of the landing 30, that is, the doorway frame 31, the hold door 32 and the door sill 33 is shown. ing. The surface of the doorway frame 31 is formed so as to incline so as to project toward the car 10 side, that is, the hoistway 1 side, and the surface 34 of the door panel 33 of the hold door 32 on the car 12 side conforms to the inclination of the doorway frame 31. It is inclined. In addition, doorway frame 3
1, the structure of holdor 32 and door sill 33 is shown in FIG.
The same structure as the doorway frame 11, the car door 12 and the door sill 15 of the car 10 shown in FIG. By doing so, the hoistway 1 and the landing 30 can be airtightly partitioned, noise can be prevented from entering the landing 30 from the hoistway 1, and smoke can be emitted when a fire occurs. Can be prevented from entering the hoistway 1 and the landing 30.

[Second Embodiment] Next, a second embodiment will be described with reference to FIGS. 4 and 5. The second embodiment is substantially the same as the first embodiment except that the configuration of the lower portion of the car door and the configuration of the door sill are different from those of the first embodiment. In the second embodiment, the same parts as those in the first embodiment are designated by the same reference numerals, and duplicate description will be omitted.

FIG. 4 and FIG. 5 are diagrams in which members necessary for explaining the present invention are extracted and displayed. 4A shows the case where the car door 12A is in the fully closed position, and FIG. 4B shows the case where the car door 12A is in the fully open position. Further, FIG. 5 is a view showing a VV cross section in FIG. Although FIG. 4 shows only the members related to the right car door of the left-right double-sided car door,
The overall configuration is symmetrical about the centerline A.

A bracket 20 is attached to the inner surface of the door panel 13 of the car door 12A. A support plate 21 is attached to the bracket 20. Support plate 2
An L-shaped closing plate 22 is attached to the side surface of 1. The closing plate 22 includes a protrusion 23 that horizontally protrudes toward the cab 10 a side, and a base 2 that is fixed to the support plate 21.
4 and. At the lower end of the support plate 21, a plurality of shoes 2
5 is attached. The car door 12 </ b> A is formed in the same manner as the car door 12 of the first embodiment, and the door frame 11 is formed in the same manner except for the parts described above.

A recess 26 is formed in the door sill 15A. A raceway groove 27 is formed on the bottom surface of the recess 26. The shoe 25 is fitted in a linearly extending track groove 27 and guides the opening and closing of the car door 12A.

The protruding portion 23 of the closing plate 22 is formed by the door panel 1
It extends over almost the entire width of 3A. The front end 23a of the protruding portion 23 (the end on the side of the cab 10a) has a door panel 13A.
It terminates on a plane extending downward from the cab-side surface. A sealing material 28 is provided in the recess 26 of the door sill 15A.

As shown in FIG. 4, the tip 23 of the protrusion 23
The angle a is inclined at a predetermined angle α with respect to the moving direction D when the car door 12A is opened and closed, that is, the direction in which the track groove 27 extends. The sealing material 28 has a sealing surface 28a that is inclined at a predetermined angle α with respect to the moving direction D when the car door 12A is opened and closed. The sealing surface 28a is also inclined at a predetermined angle α with respect to the moving direction D when the car door 12A is opened and closed. Therefore, when the car door 12A is in the fully closed position, the tip 23a of the protruding portion 23 is in close contact with the sealing surface 28a of the sealing material 28 over its entire length. As can be seen from FIG. 4, the leading end 23a and the sealing surface 28a are inclined so as to project toward the landing 30 side as they approach the center of the entrance / exit.

As shown in FIG. 5, the sealing material 28 further includes
Protrusions 28b and 28c are provided on both upper and lower sides of the sealing surface 28a. The protrusions 28 b and 28 c are the protrusions 2 of the closing plate 22.
3 is sandwiched from above and below, thereby further improving the sealing performance between the protruding portion 23 of the closing plate 22 and the sealing material 28.

The closing plate 22 and the sealing material 28 are
It can be easily formed only by diagonally cutting the ends of the long member having the same cross section.

The sealing material 28 is covered with a cover 29 over its entire length. Tip 29a of cover 29
Extends to a position close to the base portion 24 of the closing plate 22 while satisfying the condition that there is a gap through which the support plate 21 for the shoe 25 and the base portion 24 of the closing plate 22 can pass. Therefore, the width of the groove existing in the door sill 15A when the car door 12A is in the fully open position is the same as the width of the groove existing in the door sill of the conventional general elevator. Therefore, there is no risk of passengers tripping over this groove. Further, the upper surface of the cover 29 is located at the same height as the upper surface of the door sill 15A so that no step is formed on the surface of the door sill 15A. This also makes it possible to prevent passengers from tripping when getting on and off at the same level as in the case of a general elevator.

As described above, according to the present embodiment, in addition to the effects of the first embodiment, there is an advantage that it is possible to effectively prevent tripping of passengers when getting on and off.

As described in the first embodiment, the configurations shown in FIGS. 4 and 5 can be applied to the hold door 32 and door sill 33 on the landing 30 side. In this case, as the tip 23a of the closing plate 22 and the sealing surface 27a approach the center of the entrance / exit,
It may be configured so as to be inclined so as to project toward the side of the car 12A.

[0039]

As described above, according to the present invention,
It is possible to improve the tightness of the car at a low cost.

[Brief description of drawings]

FIG. 1 is a diagram showing a first embodiment of an elevator according to the present invention, and is a diagram schematically showing an overall configuration of the elevator.

FIG. 2 is a view of the car 10 viewed from the direction of arrow II in FIG. 1, showing only the members related to the present invention.

3 is a view showing a cross section taken along line III-III in FIG.
The figure which extracted and displayed only the member which concerns on this invention.

FIG. 4 is a diagram showing a second embodiment of the elevator according to the present invention, and is a diagram in which only members related to the present invention are extracted and displayed. 4A shows the case where the car door 12A is in the fully closed position, and FIG. 4B shows the case where the car door 12A is in the fully open position.

5 is a view showing a VV cross section in FIG.

[Explanation of symbols]

1 hoistway 2 rope 4 hoisting machine 10 car 10a cab 11 Doorway frame 12 car door D Car door movement direction 13 Door panel (of the car door) 15,15A door sill 16 (door sill) accommodation groove 16c Side wall (of accommodation groove) 19 Adhesion auxiliary member (seal material) 22 First seal member (blocking plate) 26 recess of door sill 28 Second seal member (seal material) 29 cover 31 Entrance / exit frame 32 Holdor 33 (Holdor's) Door Panel

Claims (6)

[Claims] 1. An elevator car, comprising: a car door that moves in a predetermined moving direction when opening and closing a doorway of the car; and an doorway frame provided at the doorway, wherein the car door is a car The room side surface has a door panel that is inclined at an angle with respect to the moving direction of the car door, and the car door side surface of the doorway frame is when the car door is in the fully closed position. The elevator car according to claim 1, wherein the elevator car is inclined at an angle with respect to the moving direction of the car door so as to continuously contact with the peripheral edge of the car panel side surface of the door panel. 2. A car room side surface of the door panel is angled with respect to the moving direction of the car door by inclining the entire car door at an angle with respect to the moving direction of the car door. The elevator car according to claim 1, wherein the elevator car is inclined. 3. When the car door is in a fully closed position, a contact auxiliary member interposed between a surface of the door panel on the car room side and a surface of the doorway frame on the door panel side is further provided. 3. The elevator car according to claim 1, wherein the member is attached to at least one of a surface of the door panel on the side of the cab and a surface of the door frame on the side of the door panel. . 4. A door sill connected to a lower end of the door frame, the door sill having a housing groove extending in a moving direction of the car door and housing a lower end portion of the door panel, An angle is formed with respect to the moving direction of the car door so that a part of the side wall of the groove continuously contacts the lower edge of the cab-side surface of the door panel when the car door is in the fully closed position. The elevator car according to claim 1, characterized in that it is inclined. 5. A door seal connected to a lower end of the doorway frame is further provided, and a first seal member extending along the door panel is provided below the door panel, and the door sill has at least the entire car door. A second seal member is provided that contacts the first seal member when in the closed position, and the surfaces of the first and second seal members that contact each other form an angle with respect to the moving direction of the car door. The second seal member is housed in a recess formed in the door sill, and the upper side thereof is covered with a cover, according to claim 1, Elevator car. 6. The hoisting machine, and the elevator according to claim 1, wherein the hoisting machine hoists and descends in a hoistway via a rope, and a landing side fixed to a building. An entrance / exit device, wherein the landing-side entrance / exit device includes a hold door that moves in a predetermined movement direction when opening / closing the entrance / exit on the landing side, and a landing-side entrance / exit frame provided on the entrance / exit on the landing side. And the hold door has a door panel whose surface on the landing side is inclined at an angle with respect to the moving direction of the hold door, and the surface on the car side of the landing side entrance / exit frame is When the hold door is in the fully closed position, the hold door is inclined at an angle with respect to the moving direction of the hold door so as to continuously contact the periphery of the landing surface of the door panel of the hold door. Which is characterized by beta.