JP2012218931A - Cage of elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that, though airtightness is attained when a door is moved by an atmospheric pressure difference between the inside and outside of a cage of an elevator and an airtight plate is pressed to rubber, airtightness is not attained at a fixed pressure or below.SOLUTION: The cage of the elevator includes: a surrounding frame part 7 forming a gate 6 of the cage; a door 5 provided closely to the surrounding frame part, for opening and closing the gate; an electromagnet 14 provided on the surrounding frame part, for attracting the door in the direction of the surrounding frame part by magnetic force at prescribed time; and an elastic member 13 interposed between the surrounding frame part and the door, for shielding a gap between the surrounding frame part and the door when the electromagnet attracts the door.

Description

  The present invention relates to an elevator cab that is suitable as a cab especially for a high-speed elevator and has improved sound insulation performance and reduced noise.

In recent years, with the increase in the number of buildings, it has been desired to increase the lifting speed of elevators. However, as the lifting speed of elevators increases, noise such as wind noise increases in the hoistway. Sex cannot be maintained. By increasing the thickness of the sound insulation walls such as the walls and ceiling of the cab, the sound insulation performance of the cab can be improved, but the weight of the cab increases and the burden on the hoisting machine and emergency stop increases. End up. In a cab equipped with a barometric pressure control device, there is also a problem that wind noise is generated from a gap in the cab due to a difference in pressure between the cab and the outside of the cab.
Therefore, a method for improving the sound insulation performance of the car room by making the car room airtight has been studied. Patent Document 1 describes a technique for sealing a gap between a door panel and a peripheral portion of an opening in accordance with a pressure load in a car room controlled by a pressure control device. Patent Document 2 describes a technique in which a wedge-shaped close contact material is provided in a gap between a door panel and an entrance and seals.

Japanese Patent Laying-Open No. 2003-81561 (first page, FIG. 7) Japanese Patent Application Laid-Open No. 10-120349 (first page, FIG. 2)

  In the technique such as Patent Document 1, the door moves due to a pressure difference between the inside and outside of the car and the airtight plate is pressed against the rubber, but there is a problem that the airtight plate is not airtight below a certain pressure. Further, in the technique such as Patent Document 2, when the inside of the car is pressurized, the door moves outward and airtightness cannot be obtained. In addition, there is a problem that the position of the contact material must be finely adjusted in order to make the wedge-shaped contact material surface and the door contact surface airtight at the same time.

  The present invention has been made in order to solve the above-described problems. An elevator cab which can always be hermetically sealed even if there is a pressure difference between the outside and the inside of the cab and noise is reduced. It is intended to provide.

  The elevator cab according to the present invention includes a peripheral frame portion that forms an entrance / exit of the cab, a door that is provided near the peripheral frame portion and opens and closes the entrance / exit, and is provided in the peripheral frame portion. An electromagnet device that sometimes pulls the door in the direction of the peripheral frame portion, and a gap between the peripheral frame portion and the door that is interposed between the peripheral frame portion and the door when the electromagnet device pulls the door An elastic member that shields the light is provided.

  In this invention, an elastic member is interposed between the peripheral frame portion of the entrance / exit and the door, and the door is attracted to the peripheral frame portion by the attractive force of the magnetic force of the electromagnet device, and the elastic member is compressed to achieve sealing. Therefore, the cab is surely airtight and can be kept airtight even if there is a pressure difference. Noise can also be reduced

The perspective view which shows the elevator cab which concerns on Embodiment 1 of this invention. It is a figure which shows arrangement | positioning of the elastic member with respect to the cab shown by FIG. 1, (a) is a top view, (b) is a front view. It is a figure which shows arrangement | positioning when an electromagnet apparatus is added to the cab shown by FIG. 2, (a) is a top view, (b) is a front view, (c) is principal part sectional drawing seen from the side. It is a figure which shows the cab of the elevator which concerns on Embodiment 2 of this invention, (a) is a front view, (b) is principal part sectional drawing seen from the side surface. It is a figure explaining the inflow route of the noise in a cage | basket | chamber conceptually, (a) is the principal part sectional drawing which shows the case of Embodiment 1 for a comparison, (b) is the case of Embodiment 2. FIG.

Embodiment 1 FIG.
Hereinafter, the elevator cab according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 3. 1 is a perspective view showing an elevator cab according to Embodiment 1 of the present invention, FIG. 2 is a view showing the arrangement of elastic members with respect to the cab shown in FIG. 1, and FIG. FIG. 2B is a front view. As shown in FIG. 1, an elevator cab 1 is roughly divided into a ceiling 2, a wall 3, a floor 4, and a door 5. The ceiling 2, the wall 3, and the floor 4 are fastened and integrated with bolts. As shown in FIG. 2, a peripheral frame portion 7 that forms the entrance / exit 6 is provided on the front side of the wall 3. The door 5 is hung on a rail 8 provided outside the upper part of the peripheral frame part 7 via a door hanger 15, and a door foot 9 provided on the lower part of the door 5 is a threshold that constitutes the peripheral frame part 7. Since the door 5 is engaged with the ten grooves 10a, the door 5 has a structure in which the proximity position of the peripheral frame portion 7 is opened and closed along the sill 10 by an opening / closing mechanism (not shown).

  In a building with a long lifting process, there is a possibility of giving passengers a feeling of discomfort such as a feeling of ear closure, so an air pressure control device 11 that controls the air pressure in the cab 1 is mounted. Further, in the case of the cab 1 whose airtightness has been enhanced for pressure control, in order to prevent problems such as lack of oxygen when passengers are trapped in the cab 1 due to a power failure or the like, A ventilator 12 for ventilating the inside of the cab 1 is mounted.

  In the first embodiment, the elastic member 13 which is one of the characteristic parts of the present invention is a linear rubber packing material 13a provided on a linear portion of the outdoor surface portion of the peripheral frame portion 7 as shown in FIG. And the connecting portion elastic member 13b connecting the adjacent rubber packing members 13a at the vertical and horizontal corners of the rubber packing member 13a. In addition, when the door 5 is a double-opening type as shown in the figure, the rubber packing material 13a is also installed in the door contact portion 5a. The elastic member 13 is preferably divided into a plurality of parts such as an upper part, a lower part, a foot part, and a door contact part 5a of the door 5 in consideration of adjustment of the amount of rubber pressing and ease of replacement work. In the first embodiment, the linear rubber packing material 13a is divided and arranged as shown in FIG.

  By dividing the rubber packing material 13a, the gap generated at the joint portion between the rubber packing materials 13a extends across the rubber packing materials 13a on the outer side in the surface direction of the adjacent rubber packing material 13a through the connecting portion elastic material 13b. It is sealed airtight by installing it on top of the other. Further, the rubber packing material 13a and the connecting portion elastic member 13b have the same thickness, and have dimensions that do not hinder the opening and closing of the door 5 as long as the gap between the outer surface of the peripheral frame portion 7 and the door 5 is filled. It is desirable to do. Further, although depending on the state of the decorative surface of the door 5 on the inside of the car, the door 5 may be partially slid with the elastic member 13 in the process of opening and closing the door 5. Since the lower portion of the door 5 has a portion that is not opposed to the outdoor surface portion of the peripheral frame portion 7, for example, by attaching the rubber packing material 13 a so as to enter the groove 10 a from the lower surface of the door 5. The gap is closed (not shown).

  The materials used as the rubber packing material 13a and the connecting portion elastic material 13b constituting the elastic member 13 are not particularly limited, and may be the same material or different materials. In particular, those having rubber elasticity can be preferably used, and examples thereof include various synthetic rubbers such as silicone rubber, fluorine rubber, urethane rubber, acrylic rubber, and nitrile rubber, and natural rubber. As the shape of the elastic member 13, for example, a plate-like rubber material, for example, a mold rubber material having various cross-sectional shapes such as a D-shaped cross section, a tape-like sponge rubber material, or the like can be preferably used. The means for fixing the elastic member 13 is not particularly limited, and can be fixed by, for example, an adhesive or a double-sided adhesive tape. In the case of a sponge rubber material, it is desirable that the internal bubbles are mutually independent and have no air permeability.

  3A and 3B are diagrams showing an arrangement when an electromagnet device is added to the cab shown in FIG. 2, wherein FIG. 3A is a top view, FIG. 3B is a front view, and FIG. 3C is a side view. FIG. The electromagnet 14 constituting the electromagnet device, which is another feature of the present invention, is brought close to the door 5 on the surface facing the door 5 at the time of closing in the sleeve wall 7a constituting the peripheral frame portion 7. is set up. In this example, it is installed in four places, one place above and below the left and right sleeve walls 7a. Note that the yoke, the electromagnetic coil, or the wiring, the control device, and the like constituting the electromagnet device are not shown. Further, the entire door 5 or at least the portion facing the electromagnet 14 is made of a magnetic material. Since the atmospheric pressure control device 11, the ventilation device 12, and other configurations are the same as those of a conventional elevator cab, the description thereof will be omitted.

  Next, the operation of the first embodiment configured as described above will be described. When the door 5 of the elevator is closed, the electromagnet 14 is energized, the door 5 made of a magnetic material is attracted to the peripheral frame 7 side of the cab 1 by electromagnetic force, and the rubber packing material 13a and the connecting portion elastic material 13b. The elastic member 13 is compressed between the peripheral frame portion 7 and the door 5, the density of the rubber packing material 13a and the elastic member 13 is increased, and the gap around the door 5 is shielded. The inflow path of the noise entering the car room 1 from the hoistway during the elevator lift is not only the noise transmitted through the sound insulation walls such as the walls 3 and doors 5 but also the noise entering from the gaps around the doors and fastening portions. Therefore, in order to realize the car room 1 with high sound insulation performance, it is necessary to make the gaps around the door and the fastening part as small as possible. Note that the operation of the electromagnet 14 may be interlocked with the atmospheric pressure control device 11.

  In the first embodiment, the elastic member 13 interposed between the peripheral frame portion 7 of the entrance / exit 6 and the door 5 is compressed and sealed between the peripheral frame portion 7 by the door 5 attracted by the electromagnet 14. Is planned. Thereby, the cab 1 becomes airtight and the sound insulation performance is improved. Further, since the car room 1 becomes airtight, the air volume necessary for controlling the air pressure in the car room 1 is reduced, and the rotation speed of the blower (not shown) of the air pressure control device 11 is controlled to be small. The noise of the atmospheric pressure control device 11 is also reduced. Moreover, it operates so that power consumption is also reduced by reducing the rotation speed of the blower.

  As described above, according to the first embodiment, the elastic member 13 is interposed between the peripheral frame portion 7 of the entrance / exit 6 and the door 5, and the elastic member is obtained by drawing the door 5 to the peripheral frame portion 7 by the electromagnet device. Since the door 13 is compressed and hermetically sealed, even if a force is applied to the door 5 due to pressure fluctuations during elevator lift or pressure difference due to atmospheric pressure control in the car room, the door 5 does not move, so that airtightness can be maintained. . Further, since the car room 1 is airtight, the sound insulation performance of the car room 1 is improved. Further, when the gap between the car rooms 1 is reduced, the amount of air supplied to and exhausted from the air blower that controls the air pressure inside the car room can be reduced, so that noise and power consumption of the air blower can be reduced. Further, since the elastic member 13 is attached so as to be elastically deformed in a direction orthogonal to the opening / closing direction of the door 1, the elastic member 13 is effectively compressed, so that the density is increased and the sound insulation performance can be easily improved. it can.

Embodiment 2. FIG.
Next, an elevator cab according to Embodiment 2 of the present invention will be described with reference to FIGS. 4A and 4B are views showing an elevator cab according to Embodiment 2 of the present invention, in which FIG. 4A is a front view and FIG. 4B is a cross-sectional view of the main part viewed from the side. FIGS. 5A and 5B are diagrams conceptually illustrating a noise inflow route in the cab, where FIG. 5A is a cross-sectional view of a main portion showing the case of the first embodiment for comparison and FIG. 5B is the case of the second embodiment. FIG. In the second embodiment, an elastic member, its supporting member, and an electromagnet are added to the door hanger to further improve the sound insulation performance.

  In the figure, a support member 16 made of an iron-based magnetic material protrudes from the plate-like door hanger 15 on the side of the cab 1, and the upper outer surface of the peripheral frame portion 7 protrudes from the protruding end of the support member 16. An upper elastic member 13c that closes the gap between the door 1 and the door 1 is provided in the width direction. The upper elastic member 13c can be made of the same material as the connecting portion elastic member 13b. The fixing position of the upper elastic member 13 c may be the upper outer surface of the peripheral frame portion 7. A total of four electromagnets 14 </ b> A are installed on the left and right doors 5 at a portion of the peripheral frame 7 that faces the support member 16. The electromagnet 14 </ b> A is turned on and off simultaneously with the other four electromagnets 14. Since other configurations are the same as those of the first embodiment, description thereof is omitted.

  In the second embodiment configured as described above, the electromagnets 14 and 14A are energized at the same time as the elevator door 5 is closed. As a result, the door 5 and the door hanger 15 made of a magnetic material are simultaneously attracted to the peripheral frame 7 side of the cab 1 by electromagnetic force, and the elastic made of the rubber packing material 13a, the connecting portion elastic member 13b, and the upper elastic member 13c. The members 13 are compressed between the peripheral frame portion 7 and the door 5 and between the peripheral frame portion 7 and the support member 16, respectively, so that the density increases and the gap between the door 5 and the cab 1 is closed. Thereby, the cab 1 becomes airtight and the sound insulation performance increases.

  In addition, since the gap between the door hanger 15 and the car room 1 is also closed, the noise entry path is greater in the second embodiment than in the first embodiment indicated by the arrow A1 in FIG. As indicated by an arrow A2 in FIG. 5B, since the upper part of the door 5 is double-insulated, the effect of further improving the sound insulation performance compared to the case of the first embodiment is obtained. Moreover, since two of the central portions of the four electromagnets 14A draw the vicinity of the door stop portion 5a of the door 5 toward the peripheral frame portion 7 side, the central portion of the elastic member 13 in the door width direction is effectively compressed, Airtightness is improved.

  In the first and second embodiments, the elastic member 13 is fixed to the outdoor surface of the peripheral frame portion 7 of the cab 1, but is fixed to the surface of the door 5 facing the outdoor surface of the peripheral frame portion 7. May be. Moreover, although the elastic member 13 was comprised by the rubber packing material 13a and the connection part elastic material 13b, arbitrary one kind of elastic materials are adhered by affixing the elastic member 13 uniformly by forming a bending part in circular arc shape etc. You may make it comprise only.

  1 cage, 2 ceiling, 3 walls, 4 floors, 5 doors, 5a door contact, 6 entrance / exit, 7 peripheral frame, 7a sleeve wall, 8 rails, 9 door feet, 10 sill, 10a groove, 11 bar Control device, 12 ventilation device, 13 elastic member, 13a rubber packing material, 13b connecting portion elastic material, 13c upper elastic member, 14, 14A electromagnet, 15 door hanger, 16 support member.

Claims (5)

  A peripheral frame portion that forms an entrance / exit of the cab, a door that is provided close to the peripheral frame portion and opens / closes the entrance / exit, and a door that is provided in the peripheral frame portion at a predetermined time to move the door to the peripheral frame portion And an elastic member that is interposed between the peripheral frame portion and the door and shields a gap between the peripheral frame portion and the door when the electromagnet device pulls the door. An elevator cab characterized by that.   The elastic member is a connection that connects the rubber packing material provided at the vertical and horizontal corners between the rubber packing materials and the linear rubber packing material provided at the peripheral frame portion or the straight portion of the door. The elevator cab according to claim 1, wherein the elevator cab is made of a partial elastic material.   2. The electromagnetic device according to claim 1, wherein the elastic member is disposed between a door hanger that suspends the door and the peripheral frame, and an electromagnet device that draws the door hanger toward the peripheral frame is provided. The elevator cab described in 2.   The elevator car according to any one of claims 1 to 3, wherein the electromagnet device is energized when the car room is raised and lowered to attract the door toward the peripheral frame portion. Room.   The elevator according to any one of claims 1 to 4, further comprising an air pressure control device that controls the air pressure in the car room, wherein the electromagnet device operates in conjunction with the air pressure control device. The basket room.

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