JPH0416484A - Elevator cage floor structure - Google Patents

Abstract

PURPOSE:To sufficiently ensure given rigidity and the flexible strength of a cage floor and to reduce the weight of the cage floor by locating a pair of upper and lower deck plates made of reinforced plastic superposed with each other in a state that the directions thereof cross each other at right angles and supporting the lower deck plate made of reinforced plastic from below by means of a floor support member through a floor frame member. CONSTITUTION:A floor 14A of an elevator cage 7 is provided with a floor main plate 30 made of a steel plate serving as a floor plate constituting member, a veneer sheet 31 superposed with the upper surface thereof, and a floor finish material 32, e.g. tiles, superposed with the upper surface thereof. In order to ensure rigidity and the flexible strength of the floor 14A, a pair of upper and lower deck plates 33 and 34 made of reinforced plastic superposed with each other in a state to cross their directions at right angles are arranged on the under surface of a floor main plate 30. The lower deck plate 34 made of reinforced plastic is supported from below by means of a floor support frame 12 serving as a floor support member and a vibration insulating member 13 through a floor frame member 35. This structure reduces weight, provides rigidity, and improves vibration damping ability and impact absorptivity.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a floor structure of an elevator car that goes up and down.

(Prior Art) Generally, as shown in Fig. 3, an elevator is provided with a hoisting sheave 4 and a deflecting sheave 5 of the hoisting machine 3, which are provided in the machine room 2 above the hoistway 1 in the building. A hanging robe 6 is wrapped around it and suspended into the hoistway 1, and a car 7 is suspended from one end of the hanging robe 6, and a counterweight 8 is suspended from the other end. The car 7 and the counterweight 8 are each guided and held in the hoistway 1 by a pair of left and right guide rails 9, 10 so as to be movable up and down, and in this state, the hoisting machine 3 is driven to rotate through the hanging lobe 6. The lever car 7 and the counterweight 8 are moved up and down relatively to move the car 7 up and down to the destination floor.

The elevator car 7 is a box-shaped thing that is connected and supported by the hanging lobe 6 via a car frame 11. On the lower beam 11a of the car frame 11, there is a floor support frame 12, a vibration isolating member 13 such as rubber, etc. A floor 14 that is placed and supported horizontally via floor support members, a side plate 15 that is erected around the floor 14 via book blocks (not shown), and a ceiling with a lighting device (not shown). , a door device 16, etc.

Here, the conventional structure of the floor 14 of the elevator car 7 is shown in FIGS. 4 and 5. The floor board components include a raw floor board 20 made of a steel plate, a plywood board 21 superimposed on the upper surface of the raw floor board 20, and a floor finishing material 22 such as a tile superimposed on the upper surface. In addition, in order to ensure the rigidity and bending strength of the floor 14, the front and rear ends 20a and 20b of the main board 20 are bent downward, and the cross section of the front and rear ends 20a and 20b is formed into a pair of left and right U-shaped cross sections. The floor frame member 23 is fixed, and the main board 2
A plurality of reinforcing members 24 made of steel and having a hat-shaped cross section are arranged on the lower surface. The left and right floor frame members 23 are placed and supported on the vibration isolating member 13, which is the floor support member.

A sill 26 for guiding the door is provided on the front edge of the floor 14 via a sill receiving member 25.

(Problems to be Solved by the Invention) By the way, the floor 14 of the conventional elevator car described above has a structure in which a plurality of reinforcing members 24 each having a cross-sectional shape of a hat are provided on the lower surface of the main plate 20 which is a constituent member of the floor plate. In order to ensure the required rigidity and bending strength, both the main plate 20 and each reinforcing member 24 must be made of steel plate with a thickness of 3111 mm or more, which increases the weight of the floor 14. This was an obstacle to reducing the overall weight of Car 7. In addition, it was not possible to reduce the weight of the counterweight 8, and there was a limit to energy saving by reducing the load on the hoisting machine 3.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an elevator car floor structure that can sufficiently ensure the required rigidity and bending strength of the car floor, and can also reduce weight.

[Structure of the invention]

(Means for Solving the Problems) In order to achieve the above-mentioned object, the elevator car floor structure of the present invention is provided with reinforced plastics that are polymerized in a pair of upper and lower layers in a state orthogonal to each other on the lower surface of the floor plate component of the elevator car. The present invention is characterized in that a deck plate made of plastic is provided, and the lower deck plate made of reinforced plastic is supported from below by a floor support member via a floor frame member.

(Function) In the elevator car floor structure having the above configuration, a pair of upper and lower reinforced plastic deck plates are provided as reinforcing members on the lower surface of the floor plate component of the elevator car. Although the reinforced plastic deck plate is much lighter and thinner than the conventional cross-sectional hat-shaped steel plate reinforcement member, it has considerable rigidity, and furthermore, the upper and lower reinforced plastic deck plates overlap in orthogonal directions. x-y
High bending rigidity in both directions (front, rear, left and right) is achieved. This allows for a significant weight reduction while ensuring the required rigidity and bending strength of the car floor, which in turn helps reduce the weight of the entire car and the weight of the counterweight, which reduces the load on the hoisting machine. Energy saving becomes possible.

(Example) An example of the present invention will be described below with reference to FIGS. 1 and 2. Note that the overall structure and operation of the elevator are the same as those shown in FIG. 3 above, so a description thereof will be omitted. Further, the structure of the car 7 other than the floor part is the same as that shown in FIG. 3, so the explanation thereof will be omitted.

Here, 14A in the figure indicates the floor of the elevator car 7, and this floor 14A is a main plate 3 made of steel plate as a floor plate constituent member.
0, a plywood board 31 overlaid on the upper surface thereof, and a floor finishing material 32 such as tiles overlaid on the upper surface.

In order to ensure the rigidity and bending strength of the floor 14A, a pair of upper and lower reinforced plastic deck plates 33 and 34 are provided as reinforcing members on the lower surface of the main board 30, and the deck plates 33 and 34 are made of reinforced plastic and overlap each other in directions perpendicular to each other. The lower reinforced plastic deck plate 34 is connected to the floor support frame 12 (see FIG. 3), which is a floor support member, and the vibration isolating member 1 via the floor frame member 35.
3 so that it can be supported from below.

To explain in more detail, the veneer board 31 and the floor finishing material 32 such as tiles, which are the floor board constituent members, are the same as conventional ones, but the main board 3
0 is made of steel plate with a thickness of about 0.5 to 1.21 mm, which is thinner than conventional ones.

In addition, both the upper and lower reinforced plastic deck play) 33
．． 34 is formed into a continuous trapezoidal shape with equal pitches, and these also have a plate thickness of 1 which is thinner than the conventional hat-shaped cross-sectional reinforcing member 24.
~2II11 reinforced plastic integrally molded product,
The height of the trapezoid is about 12-25+am. This reinforced plastic deck plate 33, 34 is much lighter than a metal deck plate, and even though it is a thin plate, it has considerable rigidity, and also has excellent vibration damping and shock absorption properties.

In addition, as the reinforced plastic, for example, G E RP (Glass-Fibe) reinforced with glass fiber is used.
rReinforced Plasticsg) and C F RP (Carbon Fi RP) reinforced with carbon fiber.
ber Re1nforced Plasticiesg
) is preferably used. This GERP and CFRP
33.34, it is lightweight and thin, yet has high strength, that is, high specific strength.

Table 1 shows a comparison of the mechanical properties of the GERP and CFRP deck plates with those of the steel plate (SPHC) deck plate.

Although the properties of GERPA and CFRP vary greatly depending on the content of reinforcing fibers, the properties of those with common content are shown here.

As described above, GERP and CFRP are 1/6 to 1/6 the weight of 5PUC, have strength equal to or greater than 5PUC, and can be significantly reduced in weight.

In addition, even though the upper and lower reinforced plastic deck plates 33 and 34 are thin, they individually have high bending rigidity in one direction due to the shape effect of being molded into a continuous trapezoidal shape. Because the effect is great, these two upper and lower plastic deck plates 33.
34 are superimposed with their directions perpendicular to each other, so that even higher rigidity can be obtained in any of the X and Y directions (front, rear, left, and right).

These upper and lower reinforced plastic deck plates 33
．． 34 are fixed to each other by adhesive bonding, and their resistance to mutual deformation is greatly improved.

The floor frame member 35 is a total of four frame members 35a, 35b made of steel, each having a U-shaped cross section.

35c and 35d are bonded together and framed in a rectangular shape. The lower reinforced plastic deck plate 34 is fixed onto this floor frame member 35 by adhesive in the same manner as described above. This floor frame member 35 is placed on the floor support frame 12 which is a floor support member on the lower beam 11a of the car frame 11 shown in FIG.
The entire A is held horizontally.

Note that the frame member 3 having a U-shaped cross section at the front end of the floor frame member 35
Reference numeral 5a is a wide plate that is disposed downward and protrudes forward from the floor 14A, and the front end edge of the lower reinforced plastic deck plate 34 extends from the upper surface of the front edge 8, and a sill for guiding the door is provided on the upper surface of the lower reinforced plastic deck plate 34. 26 is installed and fixed.

Therefore, if the elevator car floor structure is as described above, the floor 14
Floor finishing material 32° plywood board 31 which is a component of the floor board of A
．． A pair of upper and lower reinforced plastic deck plates 33 and 34 are provided on the lower surface of the main floor board 30 as reinforcing members.
34 is much lighter and thinner than conventional cross-section hat-shaped steel plate reinforcing members, yet has considerable rigidity.
Furthermore, the upper and lower reinforced plastic deck plates 33.
34. Since the two are polymerized in the orthogonal directions, even higher bending rigidity in both the X-Y (front, rear, left, and right) directions can be obtained.

For this reason, the thickness of the main plate 30 made of steel and the deck brakes 33 and 34 made of upper and lower reinforced plastic can be made thinner than the conventional main plate 20 and reinforcing member 24 with a hat-shaped cross section, and the upper and lower deck plates made of reinforced plastic Since the weight of 33.34 is very light, it is possible to achieve a significant weight reduction while ensuring the required rigidity and bending strength of the -1 car floor 14A, which in turn reduces the weight of the entire car and the weight of the counterweight. This makes it possible to save energy by reducing the load on the hoisting machine.

〔Effect of the invention〕

Since the elevator car floor structure of the present invention is configured as described above, it is possible to sufficiently secure the required rigidity and bending strength of the car floor, and also to reduce the weight, which in turn contributes to the weight reduction of the entire car and the weight of the counterweight. This has the effect of making it possible to save energy by reducing the load on the hoisting machine.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an elevator car floor showing an embodiment of the present invention, Fig. 2 is a side view of the same book, Fig. 3 is a schematic configuration diagram of the entire elevator, and Fig. 4 is an elevator car floor showing a conventional example. The perspective view, FIG. 5, is a sectional view taken along the line v--v in FIG. 4. 12.13... Floor support member, 14... Elevator car floor, 30, 31.32... Floor plate constituent member, 33°3
4... Reinforced plastic deck plate, 35...
・Floor frame parts. Applicant's representative Patent attorney Takehiko Suzue 4A 1st m 4A 2nd WJ 3rd WJ

Claims (1)

[Claims] A pair of upper and lower reinforced plastic deck plates are provided on the lower surface of the floor plate component of the elevator car, and the upper and lower reinforced plastic deck plates overlap with each other at right angles to each other. An elevator car floor structure characterized in that it is configured to be supported from above.