JPH02163280A - Structure of cage floor of elevator - Google Patents

Abstract

PURPOSE:To prevent the peripheral edge part, weak in strength, of a honeycomb material from the locally concentrated load of passengers as well as make a cage floor light in weight by providing a stepped recessed part for accommodating the peripheral edge part of the honeycomb material at the inner periphery lower side part of a baseboard fitted on a floor supporting frame. CONSTITUTION:A stepped recessed part 31 for accommodating the peripheral edge part of a honeycomb material 27 is provided at the inner periphery lower side part of a baseboard fitted on a floor supporting frame 28. The peripheral edge part, weak in strength, of the honeycomb material 27 is protected from locally concentrated load by the upper wall part 31a of the stepped recessed part 31. As a result, a honeycomb reinforcing material becomes unnecessary and the cage floor can be made lighter in weight.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) This invention relates to an improvement of an elevator car floor structure for the purpose of reducing the weight and cost of an elevator car.

(Prior Art) As shown in FIG. 7, a general elevator is equipped with a hoisting machine 3 in a machine room 2 located directly above a hoistway 1 of a building structure, and a lobe 4 hung on the hoisting machine 3. A car 5 and a counterweight 6 are suspended from both ends of the car in a balanced manner. The car 5 consists of a car floor 7 for passengers to ride on, a car room 8, and a car frame 9 that strongly supports the car floor 7.
It is designed to move up and down while being guided by a guide rail IO that stands vertically over its entire length. .

Therefore, by reducing the weight of the car floor 7, it is possible to reduce the weight of the car 5 and the counterweight 6 that balances the car, resulting in energy savings by reducing the load on the hoisting machine 3, and even for building structures. It becomes possible to reduce the load, etc., and the effect becomes great.

By the way, the structures of the conventional elevator car floor 7 and the car room 8 are as shown in FIGS. A steel plate 11 having bent portions Ha, llb, a substantially U-shaped steel floor frame 12 fixed by welding or the like on both left and right sides of the steel plate 11, and a steel floor frame 12 with a fixed interval below the steel plate 11. A reinforcing member 13 made of steel and having a substantially hat-shaped cross-sectional shape fixed by welding or the like, and a core 14 made of steel fixed to the peripheral part of the steel plate 11 except for the car entrance/exit part, On top of this booklet 14 are the car compartment side plate 15 and the ceiling te.
etc. are removed one after another, plywood boards 17 and floor tiles 18 are laid as floor finishing materials on the steel plates 1 and 1-L surrounded by the core book 14, and the front side of the steel plate 11 is bent. A sill holder 19 is connected to the part 11a with bolts and nuts, and a sill 20 for guiding the opening and closing of the elevator door d is arranged and fixed to the -L section of the sill holder 19, thereby forming the car floor 7 and the car room 8. has been done. The car floor 7 is elastically supported by the car frame 9 via a vibration isolating rubber 21 placed at the bottom of the floor frame 12.

The conventional car floor 7 configured as described above includes a steel plate 11 and a reinforcing member to ensure rigidity and bending strength. 3 must be made of steel with a thickness of 3 mm or more, and there is a limit to how lightweight the car floor 7 and even the car as a whole can be made to be.

Therefore, an elevator has been proposed in which the car floor 7 is made to have a honeycomb structure as disclosed in Japanese Patent Application Laid-Open No. 59-74885 in order to reduce the weight of the car floor 7.

Figures 10 to 12 are lightweight /% floor strength members.
This figure shows the specific structure of a conventional elevator car floor 7 using two-cam material. A steel plate 2B having a size corresponding to the car floor area and a thickness of about 0.5 to Lamm is fixed on the support frame 25 by welding or the like, and the upper surface of this steel plate 2B surrounded by the wood 14 and the sill 20 Aluminum and paper parts.

A honeycomb material 27 made of plastic or the like is fixed by adhesive or the like, and a thin steel plate 28 with a thickness of about 0.5 to 1.8 mm is fixed on top of this honeycomb material 27 by adhesive or the like, and finishing is applied thereon. 17 plywood boards and 1 floor tile as materials
8 (fixed by adhesive etc.).

The honeycomb material 27 is as shown in FIG. 11, and the peripheral edge of the honeycomb material 27 is a weak end where the cells 27b (a hexagonal example is shown in the figure) are cut in the middle. 22a, therefore, when a locally concentrated load is applied to the peripheral edge of the honeycomb material 27, that is, the honeycomb material end portion 22a, which has a weak strength, due to a passenger's high heels, for example, the honeycomb material end portion supporting the thin steel plate 28 will be damaged. 22a is deformed, and a depression as shown in FIG. 12 is created in the floor covering material (veneer board 17, floor tile 1.8). Therefore, a steel reinforcing material 30 having a rectangular or substantially U-shaped cross section is fixed to the peripheral edge of the honeycomb material 27 by adhesive or the like as shown in FIGS. 13 and 14. By supporting the thin steel plate 28 with the honeycomb cells 27b and further supporting the reinforcing material 30 and the honeycomb cells 27b with the flange portion 25d of the floor support frame 25, deformation of the honeycomb material end portion 27a is prevented.

(Problem 8 to be Solved by the Invention) However, the conventional car floor shown in FIGS. Therefore, although a lightweight member called honeycomb material 27 is used to reduce the weight of the car floor 7, there is an increase in weight due to the reinforcing material 30, and not only is the lightweight effect not fully achieved, but it is also difficult to attach the reinforcing material. Since it is necessary to treat the edges of the honeycomb material 27,
There was a problem that the car floor structure became complicated and the manufacturing cost increased.

The purpose of this invention is to protect the weakly strong peripheral edge of the honeycomb material from the local concentrated load of passengers without using the honeycomb reinforcing material as described above, thereby reducing the weight and cost of the car floor. An object of the present invention is to provide an elevator car floor structure that can achieve reduction.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, in the elevator car floor structure of the present invention, the elevator car floor structure is provided with A stepped recess is provided in the section to accommodate the peripheral edge of the honeycomb material, and the upper wall of the stepped recess protects the weaker peripheral edge of the honeycomb material from being subjected to localized concentrated loads.

(Function) According to the elevator car floor structure of the present invention configured as described above, the weaker peripheral edge of the honeycomb material is protected from the local concentrated load of passengers by the upper wall of the booklet recess. It is possible to prevent the honeycomb periphery from being deformed or damaged due to concentrated loads such as high heels. Therefore, there is no need to use conventional honeycomb reinforcing materials, making it possible to further reduce the weight of the car floor, and providing a car floor structure that is inexpensive and easy to manufacture.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 3. The car floor 7 according to this embodiment is constructed by welding, etc. steel frame members 25a, 25b, and 25c each having a substantially U-shaped cross section. The thickness is 0.5 to 4.
A steel plate 2B of about 6 mm is fixed by welding or the like, and a honeycomb material 27 made of aluminum, paper, plastic, etc. is attached to the upper surface of the steel plate 26 surrounded by the core 14 and the sill 20.
At the same time, a thin steel plate 28 with a thickness of about 0.5 to 1.8 mm is fixed on top of the honeycomb material 27 by adhesive etc., and a plywood board 17 and a floor tile 18 are placed on top of it as finishing materials. Although configured to be fixed by adhesive or the like, the book block 14 includes an outer member 14a that is attached to the floor support frame 25 integrally with the steel plate 2B using bolts, nuts, etc., and an inner member that is fixed to the outer member 14a. 14b,
A stepped recess 31 is provided on the lower side of the inner periphery of the entire book block, which is the lower position of the inner member 14b, for storing the periphery of the two honeycomb materials together with the periphery of the thin steel plate 28. A stepped recess 32 is also provided at the end of the basket floor side to accommodate the front edge of the honeycomb material 27 together with the front edge of the thin steel plate 28. By the lower end bent portion 31a of the member 14b and the sill protruding edge 32a forming the upper wall portion of the sill step recess 32,
The honeycomb material 27 has a structure that protects the weaker peripheral edge portion (honeycomb end portion 27a shown in FIG. 11) from being subjected to localized concentrated loads.

In the car floor structure of this embodiment constructed in this way, the car floor 7 on which the weight of the passengers acts is composed of steel plates 28, 28 and honeycomb material 2.
7, the car floor has excellent rigidity and bending strength, and there is no practical problem even if no reinforcing member is attached to the lower surface of the steel plate 2B. Also,
The weight of the car compartment 8 is directly supported by the floor support frame 25 by the booklet 14 with the step recess 31, and the weaker peripheral edge (entire circumference) of the honeycomb material 27 is supported by the booklet step recess 31 and the sill step recess 32. This prevents localized concentrated loads from being applied by passengers' high heels, etc., making it possible to create a lightweight car floor with excellent strength without using conventional honeycomb reinforcing materials.

4 to 6 show an elevator car floor structure according to a second embodiment of the present invention, in which the core book 14 has a first horizontal portion provided with bolt fixing holes for fixing the car room side plate 15. 14c, a first vertical portion 14d that becomes the design surface of the cab (visible from passengers), a second horizontal portion 14e for forming a stepped recess 31 that protects the honeycomb material 27 from the local load of passengers, and a middle portion 14c. As described above, the sill 20 is constructed of a bent steel plate member having a substantially S-shaped cross section, with the second vertical portion 141' provided with a bolt fixing hole for fixing the book 14 to the floor support frame 25. The difference is that the protruding edge 20a and the stepped recess 32 are not provided, and the other configurations and functions are the same as those shown in FIGS. 1 to 3.
Since it is the same as that shown in the figure, the same components are given the same reference numerals and detailed explanations will be omitted.

This embodiment has the same protection function for the peripheral edge of the nicum material as in the first embodiment described above, but
4 can be made simpler than that of the first embodiment,
It becomes possible to further reduce the weight and cost of the car floor structure.

〔Effect of the invention〕

According to the elevator car floor structure of the present invention, it is possible to further reduce the weight of the car floor, the car, and the counterweight, which contributes to the energy saving of the entire elevator, and which is lightweight and has excellent strength at a low price. A floor structure can be provided.

[Brief explanation of the drawing]

Fig. 1 is a cutaway perspective view of a main part of a car floor showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of the car floor along line A-A in Fig. 1, and Fig. 3 is a B of Fig. 1. - A sectional view of the rear part of the car floor along line B;
FIG. 4 is a perspective view of the car floor showing the second embodiment of the present invention;
The figure is a sectional view of the rear part of the car floor taken along line C-C in Figure 4, Figure 6 is a perspective view of the core used in the car floor structure of the second embodiment, and Figure 7 is the overall structure of a typical elevator. FIG. 8 is a central longitudinal sectional view of a conventional elevator car. FIG. 9 is a perspective view showing the car floor structure of the car shown in FIG. 8. FIG. Fig. 11 is a perspective view of a honeycomb material used in the same car floor structure;
A cross-sectional view taken along line D-D in Figure O, and FIGS. 13 and 14 are cross-sectional views of main parts showing another conventional example in which a honeycomb reinforcing material is inserted. 7... Car floor, 14... Nakamoto, 17. ill...
・Plywood board and floor tile as floor finishing material, 20... Threshold, 25... Floor support frame, 28, 28... Steel plate, 27.
・Honeycomb material, 31 ・Step concave part of the book, 31a・
・The lower end bent portion of the booklet inner member forming the upper wall of the recess,
32... Step recess of the sill, 32a... A protruding edge of the sill forming the upper wall of the recess. Applicant's Representative Patent Attorney Takehiko Suzue Figure 2 Figure 5 Figure 4T Figure 6 Figure 8 Figure 9 Figure 10

Claims (1)

[Claims] In an elevator car floor structure in which a lightweight honeycomb material is used as a strength member of the car floor, a step recess is provided on the inner periphery lower side of the baseboard attached to the floor support frame to accommodate the peripheral edge of the honeycomb material. An elevator car floor structure, characterized in that the upper wall of the stepped recess protects the weaker peripheral edge of the honeycomb material from being subjected to localized concentrated loads.