JPH06115859A - Elevator car - Google Patents

Abstract

PURPOSE:To decrease the thickness of a marble and to reduce the weight of the whole of a car by a method wherein a floor and a side plate are formed of a plate material formed such that a sheet of a marble is attached directly on the surface of a plate of honeycomb constitution, in a car having a floor and a side plate formed of a marble as a surface finish. CONSTITUTION:In the car floor 35 of an elevator which is supported on a floor support, supported to a car frame, through a vibration insulating part 13, the front and rear end parts of a fireproof iron plate 17 are bent downward and frames 18 and 18 formed in an U-shape in cross section are fixed to the right and left end parts of the bent part. A honeycomb 32 formed of aluminum or plastic is adhered on the upper surface of the fire-proof iron plate 17. A steel plate (or a plywood) 33 is laminated on the honeycomb 32 and a thin marble sheet 34 with a thickness of approximate 3-5mm is securely further fixed as a surface finish material thereon. This constitution causes prevention of breakage and notch of a marble through the presence of the honeycomb 32 having excellent compression strength in the direction of thickness though the marble sheet with a thin thickness is used.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to elevator cars.

[0002]

2. Description of the Related Art A conventional elevator car is shown in FIG.
This will be described with reference to FIG.

Generally, an elevator is a hoistway 1 in a building.
The hoisting machine 3 is provided in the upper machine room 2, and the main rope 6 is wound around the hoisting sheave 4 and the deflecting sheave 5 of the hoisting machine 3 and suspended in the hoistway 1. The car 7 is hung at one end and the counterweight 8 is hung at the other end, and the car 7 is moved up and down through the main rope 6 by driving the hoisting machine 3.

The elevator car 7 includes a car floor 14 supported horizontally on a lower beam 11 of a car frame 10 via a floor receiving frame 12 and a vibration isolator 13 such as a vibration isolator, and side plates on the car floor 14. 26 is composed of an assembled car room 15, a car door 16 and the like.

By the way, recently, marble is often used as a surface finishing material for a car floor or a car room of a high-grade elevator. The structure of a car floor and a car room using marble will be described below.

The car floor 14 is constructed on a floor receiving frame 12 supported by the car frame 10 with a vibration isolator 13 interposed. That is,
Bend the front and rear ends of the steel plate fireproof iron plate 17,
A frame 1 having a U-shaped cross section at the left and right ends of this bent portion.
8 and 18 are attached, and a plurality of steel plate reinforcements 19 each having a hat-shaped cross section are attached to the inside to form a rectangular floor frame 20, which is placed on the floor receiving frame 12 via a vibration isolator 13.

A marble floor 21 is attached to the upper surface of the fireproof iron plate 17 of the floor frame 20 with a mortar 22 to form a floor. A sill receiver 23 and a sill 24 for a car door are provided at the front edge of the car floor 14.

Next, the car room 15 is constructed by providing a plurality of side plates 26, 26 ... On a skirting board 25 around the car floor 14 and arranging a ceiling 27 on the upper part thereof.

The side plate 26 is formed by bending both ends of a panel 28 made of a steel plate at a right angle to the back side (outside) to form a bent portion 29 protruding like a flange. It is configured by screw fastening through the fastening hole 30. Further, in order to increase the bending rigidity of the bent portion 29, it is general that the rear edge of the bent portion 29 is bent further inward at a right angle to form the reinforcing edge portion 31. Further, on the back surface of the panel 29, in order to maintain the overall rigidity, one or a plurality of reinforcements 32 having a substantially U-shaped cross section are attached by welding or adhesion.

Further, bent portions 29, 29 are formed at the upper and lower ends of the panel 29 by bending at a right angle to the back surface (outer side), and the bent portions 29, 29 on the upper and lower end sides of the panel 28 are respectively formed. Fastening holes 30 and 30 for fastening the ceiling 27 and the skirting board 25 are opened.

In this manner, the side plates 26 are fastened on the skirting board 25, the side plates 26 are also fastened together, and the ceiling 27 is fastened to the upper portions of the side plates 26.

As in the case of the car floor 14, as a finishing material for the car room, marble 24 is attached with mortar 22, and joints 31 made of stainless steel or aluminum having a substantially L-shaped cross section are fastened to prevent the marble from falling. Sometimes baseboard-sideboard,
Assemble the car by inserting it between the side plate-side plate and the ceiling-side plate.

[0013]

In the car constructed as described above, compressive stress and bending stress due to the weight of passengers are generated in the floor and the side plates. Therefore, in order to prevent cracking of the marble due to these forces, the plate thickness is usually 20. Marble of about 30 mm is used. As a result, the total weight of the car is significantly increased (with a thickness of marble of 20 mm and a thickness of mortar of 10 mm, an increase of about 90 kg / m2 per unit area), and correspondingly, the weight of the counterweight 8 And the weight of the hoisting machine 3 and the sheaves 4 and 5 increases,
The entire elevator becomes larger. Further, there is a problem that the energy during driving is increased.

Since a filler such as mortar is used,
Marble installation must be done at the elevator installation site and will be done in a narrow space within the hoistway,
There are drawbacks such as poor workability.

Therefore, the object of the present invention is to suppress the increase in the weight of the entire elevator, reduce the load on the hoisting machine, reduce the load on the hoisting machine, even if marble is used as the finishing material for the car room, and save energy and install it on site. It is to improve the efficiency of car assembly work.

[0016]

For this reason, according to the present invention, a car floor comprises a fireproof iron plate on which a honeycomb made of a metal such as aluminum or a plastic is adhered, and a steel plate or a plywood is further adhered on the upper surface of the honeycomb. A thin marble plate (thickness: 3 to 5 mm) is adhered to the top, a side plate is similarly adhered to the panel made of a honeycomb made of aluminum or plastic, and a steel plate or a plywood is further adhered to the upper surface of the honeycomb, and then the honeycomb is made. By bonding thin marble plates, the floor and side plates of the car are constructed as an integrated structure of steel plate, honeycomb, steel plate (or plywood), and marble.

[0017]

Since the cage floor and the side plates having such a structure are provided, the honeycomb is originally excellent in the compressive strength in the thickness direction, and the steel plate (or plywood) having high rigidity is arranged on the upper and lower surfaces of the honeycomb. By increasing the second moment of area, the rigidity against bending load is high and the bending can be suppressed to be small. Therefore, the plate thickness of the surface finish marble is reduced, and the weight is greatly reduced. Further, since the compression bending rigidity is excellent, the fireproof iron plate and the back surface of the panel are not reinforced, and the weight is further reduced. In addition, the bonding work between steel plates, honeycombs, plywoods, and marbles can be performed in the factory, which significantly improves the work efficiency at the installation site.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described based on the embodiments shown in FIGS.

As in the conventional case, the front and rear ends of the fireproof iron plate 17 are bent downward, and the left and right floor frames 18, 18 are fixed. A honeycomb 32 made of aluminum or plastic is bonded to the upper surface of the fireproof iron plate 17. A steel plate (or plywood) 33 is pasted on the honeycomb 32, and a thin marble plate 3 as a surface finishing material is further applied thereon.
4 (thickness of about 3 to 5 mm) is adhesively fixed.

Around the floor of the honeycomb 32, the steel plate (or plywood) 33, and the marble plate 34 which are integrated with each other, the baseboard 2
Set up 5. The assembly of the floor 35 up to this point can be all performed in the factory.

As described above, the honeycomb 32 excellent in the compressive strength in the thickness direction is used, and the upper and lower surfaces thereof are sandwiched by the steel plates (or plywood) 33 having high rigidity to increase the second moment of area and to bend the honeycomb. Since the rigidity can be increased, the deflection due to the load of passengers can be suppressed to a small level, and even if the surface finish material marble is thin, the marble is not cracked or chipped. Further, the reinforcing member which has been conventionally required on the lower surface of the fireproof iron plate is not required, and the weight required for the surface finishing can be reduced to about 1/4 to 1/10 of the conventional weight.

Next, the structure of the side plate 36 of the cab 15 is almost the same as the conventional one, but the reinforcing material on the back surface is omitted for the same reason as the car floor 35. The honeycomb 32 is adhered and fixed to the upper surface of the panel 28 of the side plate 36 similarly to the car floor, the steel plate or the plywood 33 is adhered onto the honeycomb 32, and finally the thin marble plate 34 is adhered as the surface finish material. All the assembling of the side plate 36 up to this point can be performed in the factory.

The side plate 36 assembled in this manner is erected on the baseboard 25 through the joints 28 at the site of installation as in the conventional case and fastened with bolts and nuts.

The joints 31 are also inserted between the side plates 36 ... and fastened with screws. Finally, the ceiling is placed and fixed on the upper portions of the side plates 36 through the joints 31, and the assembly of the cab 15 is completed. In this way, the weight of the side plate 36 can be greatly reduced similarly to the car floor.

Therefore, because of the above-mentioned construction, both the car floor and the side plates have a structure excellent in compression and bending rigidity, and the thickness of the marble as the surface finishing material can be minimized to a great extent. The weight of the car can be reduced. Further, even at the site of installation, the workability of installation is significantly improved because the car floor and the side plates to which the surface finishing material has already been attached are simply assembled.

In the above example, a steel plate or plywood is used between the honeycomb and the marble, but the steel plate or plywood may be omitted and the marble may be directly bonded and fixed onto the honeycomb. . In this case, since it is difficult to obtain the bending rigidity of the car floor and the side plate as described above, it is possible to secure the bending rigidity by reinforcing the fireproof iron plate and the back surface of the panel as in the conventional case, and to reduce the thickness of the marble plate. Also, it is possible to reduce the weight of a large car.

[0027]

EFFECTS OF THE INVENTION According to the present invention, it is possible to reduce the thickness of marble, which is a surface finishing material, by using a sandwich structure in which a car floor or a side plate is made of honeycomb, and it is possible to reduce the weight of the car as a whole and to reduce the load on a hoisting machine or the like. Energy saving can be realized by further, and the work efficiency can be improved by omitting the marble installation work at the installation site.

[Brief description of drawings]

1 is a sectional view of a floor of a car according to the invention,

FIG. 2 is a sectional view of a side plate of a car according to the present invention,

FIG. 3 is a sectional view of a fastening portion of a side plate with a skirting board according to the present invention;

FIG. 4 is a schematic configuration diagram of a conventional elevator,

FIG. 5 is a cross-sectional view of a conventional cage,

6 is a perspective view of the car floor portion of FIG. 5,

7 is a sectional view of the side plate of FIG. 5,

FIG. 8 is a cross-sectional view of the side plate and skirting board fastening portion of FIG.

FIG. 9 is a perspective view of a conventional side plate.

[Explanation of symbols]

 7 ... Basket 10 ... Basket frame 14, 35 ... Basket floor 15 ... Basket room 17 ... Fireproof iron plate 22 ... Mortar 24, 34 ... Marble 25 ... Baseboard 26, 36 ... Side plate 28 ... Panel 31 ... Joint 32 ... Honeycomb 33 ... Steel plate (plywood)

Claims (2)

[Claims] 1. An elevator car comprising a floor and side plates using marble as a surface finish, wherein the floor and side plates are composed of a plate material in which a marble thin plate is directly attached to the surface of a honeycomb structure plate. Elevator basket. 2. A floor and a side plate made of a plate material, which is formed by laminating a steel plate, an aluminum plate, or a plywood on both sides of a honeycomb-structured plate, and further by laminating a thin marble plate on the plate. Elevator basket.