CN110395644B - Elevator car and elevator device - Google Patents

Abstract

The invention provides an elevator car and an elevator device, which have high load-resisting performance and light weight. The elevator car of the invention has: a car floor (3); a column (12) which is provided with a pipe hole penetrating through the interior in the length direction, the lower end of the column is opposite to the upper surface of the car floor, and the column is arranged perpendicular to the car floor at each vertex part (24) of the vertexes of the convex polygon on the surface of the car floor; a first wall surface panel (11) which is arranged perpendicular to the car floor and has two columns arranged at two adjacent vertex parts joined to one surface; a support member (4) which passes through the pipe hole of the column, and the part of the support member extending from the inside of the pipe hole to the outside at the lower end side of the column supports the peak part of the car floor; and a rope connecting member (1) to which one end of the support member extending from the inside of the pipe hole to the outside on the upper end side of the column is fixed, the rope connecting member being suspended above the upper end of the column by the main rope.

Description

Elevator car and elevator device

Technical Field

The present invention relates to an elevator car and an elevator apparatus.

Background

In recent years, the population has been concentrated in urban areas, and the building has been increasingly high-rise. Along with this, there is an increasing demand for high-speed and large-capacity elevator apparatuses. In order to increase the speed of an elevator apparatus, increase the capacity of an elevator apparatus, reduce the load of a rope, and the like, weight reduction of an elevator car is required.

As a means for reducing the weight of an elevator car, application of fiber reinforced plastics lighter than iron used for structural members has been studied. In a conventional elevator car, a box-shaped car room is placed on an iron car frame composed of beams and columns.

In this conventional structure, when a load of a load acts at a position offset from the center of gravity of the elevator car (an eccentric load), a large bending moment acts on the column of the car frame. Therefore, in order to make the amount of deflection of the column equal to or less than the reference value, the column needs to be reinforced.

In the case where the structural member of the elevator car is made of fiber reinforced plastic based on the conventional structure, it is necessary to reinforce the column for withstanding the bending moment, and the weight of the elevator car is reduced compared to the case of using iron.

Patent document 1 discloses an elevator car including: in order to withstand bending moments based on eccentric loads, fiber reinforced plastics are used to integrate the columns of the car frame and the walls of the car room. In the structure described in patent document 1, reinforcing spars that function as pillars are disposed in the centers of 2 opposing car walls.

Therefore, the load on the reinforcing spar increases, and the thickness of the reinforcing spar needs to be increased, making it difficult to further reduce the weight. Further, as the capacity of the elevator car is increased, the distance between the reinforcing spars is increased, and there is also a problem that the load on the reinforcing spars is increased.

Patent document 2 discloses a structure in which: a plurality of parts of the outer periphery of the car floor of the elevator car are supported by the ropes, so that the load of the car frame is reduced. However, in the configuration described in patent document 2, a rope guide and a rope guide support member for guiding the rope from the upper portion of the elevator car to the car floor are additionally required, resulting in an increase in the weight of the elevator car.

As described above, the conventional elevator car is provided with a reinforcing member for resisting its own weight, a load, and the like, a member for realizing a structure for resisting a load, and the like, and thus has a problem of an increase in the weight of the elevator car.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 8-073157

Patent document 2: japanese patent laid-open publication No. 2011-162305

Disclosure of Invention

Problems to be solved by the invention

The present invention has been made to solve the above-described problems, and an object thereof is to provide an elevator car having high load-bearing performance and light weight.

Means for solving the problems

The elevator car of the invention has: a car floor; a column having a pipe hole penetrating the interior of the column in the longitudinal direction, the lower end of the column facing the upper surface of the car floor, the column being disposed perpendicular to the car floor at each of the vertex portions of the vertices of the convex polygon on the surface of the car floor; a first wall surface panel in which two pillars arranged at two adjacent vertex portions are joined to one surface, and which is arranged perpendicular to a car floor; a support member that passes through the tube hole of the pillar, and supports a peak portion of the car floor at a portion of the support member that extends from the inside of the tube hole toward the outside on the lower end side of the pillar; and a rope connecting member to which one end of the support member extending from the inside of the pipe hole to the outside on the upper end side of the column is fixed, the rope connecting member being suspended above the upper end of the column by the main rope.

Effects of the invention

According to the present invention, a lightweight elevator car having high load-bearing performance can be provided.

Drawings

Fig. 1 is a schematic diagram of an elevator apparatus according to embodiment 1 for carrying out the present invention.

Fig. 2 is a front view and a bottom view of an elevator car for carrying out embodiment 1 of the present invention.

Fig. 3 is a side view of an elevator car for carrying out embodiment 1 of the present invention.

Fig. 4 is a plan view of an elevator car for carrying out embodiment 1 of the present invention.

Fig. 5 is a three-dimensional view showing a car wall of an elevator car for carrying out embodiment 1 of the present invention.

Fig. 6 is an enlarged view of a part of an elevator car for implementing embodiment 1 of the present invention.

Fig. 7 is an enlarged view of a part of an elevator car for implementing embodiment 1 of the present invention.

Fig. 8 is a front view and a side view showing the orientation direction of fibers of a car wall of an elevator car for carrying out embodiment 1 of the present invention.

Fig. 9 is a three-dimensional view showing a car wall of an elevator car for carrying out embodiment 2 of the present invention.

Fig. 10 is a cross-sectional view of a car wall of an elevator car for carrying out embodiment 2 of the present invention.

Fig. 11 is a front view and a bottom view showing an elevator car according to embodiment 3 for carrying out the present invention.

Fig. 12 is an enlarged view of a part of an elevator car for implementing embodiment 3 of the present invention.

Fig. 13 is a front view and a plan view showing an elevator car according to embodiment 4 of the present invention.

Fig. 14 is a front view and a plan view of a car ceiling for implementing embodiment 4 of the present invention.

Fig. 15 is an enlarged view of a part of a car ceiling for implementing embodiment 4 of the present invention.

Fig. 16 is an enlarged perspective view of a vertex of a car ceiling in embodiment 5 for implementing the present invention.

Fig. 17 is an enlarged perspective view of a vertex of a car ceiling in embodiment 5 for implementing the present invention.

Fig. 18 is a front view, a plan view, and a cross-sectional view of a car ceiling according to embodiment 6 for implementing the present invention.

Fig. 19 is an enlarged perspective view of a vertex of a car ceiling according to embodiment 6 for implementing the present invention.

Description of the reference symbols

1: a rope connecting member; 2: a car wall; 3: a car floor; 4: a support member; 5: a main rope; 6: an upper beam; 7: a lower beam; 9: a fastening member; 10: a support plate; 11: a wall panel; 12: a column; 14: a car floor through hole; 16: a core material; 17: an elastic member; 24: a vertex part; 25: a support member securing position; 51: a traction machine; 53: a counterweight; 100. 100a, 100b, 100 c: an elevator car; 200: an elevator device; 300: a car ceiling; 301: a first ceiling panel; 302: a ceiling beam; 303: a gusset portion; 304: a connecting member; 305: a core material; 306: a second ceiling panel.

Detailed Description

Mode for carrying out 1

Hereinafter, a mode for carrying out the present invention will be described in detail with reference to the drawings. The embodiments described below are exemplary, and the present invention is not limited to the embodiments described below.

Fig. 1 to 8 show the x-axis, y-axis, and z-axis of a 3-axis rectangular coordinate system. The z-axis direction is a vertical direction, the positive direction and the negative direction of the z-axis are upper and lower, respectively, the positive direction and the negative direction of the y-axis are side or lateral sides, and the positive direction and the negative direction of the x-axis are front and back sides, respectively. In addition, observation in a direction parallel to the z-axis is referred to as planar observation.

Fig. 1 is a schematic diagram of an elevator apparatus 200 according to embodiment 1 for carrying out the present invention. Fig. 2 is a front view and a bottom view of an elevator car 100 for implementing embodiment 1 of the present invention. Fig. 3 is a side view of an elevator car 100 for implementing embodiment 1 of the present invention. Fig. 4 is a plan view of an elevator car 100 for implementing embodiment 1 of the present invention.

As shown in fig. 1, a hoisting machine 51 for winding up the main ropes 5 and a deflector sheave 52 are disposed in the machine room 201. The main ropes 5 are wound around a drive sheave and a deflector sheave 52 of the hoisting machine 51, and the main ropes 5 are connected to the elevator car 100 and the counterweight 53. The compensating ropes 54 connected to the elevator car 100 and the counterweight 53 are wound around the pulleys 55 and 56.

As shown in fig. 2 to 4, the elevator car 100 is suspended by the main ropes 5. A main rope fastening portion 23 is fixed to one end of the main rope 5, and the main rope 5 is connected to the rope connecting member 1. The car wall 2 and the car floor 3 constitute a wall and a floor, respectively, of a car room of the elevator car 100.

The 4 support members 4 support the car floor 3, and the front member 19 is provided on the front surface of the car room. The car wall 2 has a wall panel 11 (first wall panel 11-1), and an upper beam 6, a lower beam 7, and a pillar 12 joined to the wall panel 11.

The front member 19 provided at the front upper portion of the elevator car 100 is composed of a front wall panel 20, and a front upper beam 21 and a front lower beam 22 joined to the front wall panel 20. At a fixing portion between the car floor 3 and the support member 4, a fastening member 9 is attached to a fastening portion 8 which is a part of the support member 4, and a support plate 10 is provided between the fastening member 9 and the car floor 3. In embodiment 1, the fastening member 9 is a nut.

Next, the structure of the elevator apparatus 200 will be described with reference to fig. 1. Fig. 1 omits a part between the elevator car 100 and the machine room 201, and omits a part between the counterweight 53 and the sheaves 55 and 56. One end of the main rope 5 is connected to the upper part of the counterweight 53, and the other end is connected to the elevator car 100.

The counterweight 53 and the elevator car 100 are suspended inside the hoistway 202 by the main ropes 5. The main ropes 5 are wound around a drive sheave and a deflector sheave 52 of the hoisting machine 51. The compensating ropes 54 are connected at one end to the lower part of the counterweight 53 and at the other end to the lower part of the elevator car 100.

Compensating rope 54 is wound around pulley 55 and pulley 56. A drive sheave of the hoisting machine 51 provided in the machine room 201 is driven by a drive device (not shown) to rotate, and the elevator car 100 is raised and lowered in the vertical direction inside the hoistway 202. Next, the elevator car 100 will be described with reference to fig. 2 to 4.

The rope coupling member 1 is coupled to the main rope 5 and suspended inside the hoistway 202. The main rope 5 has a main rope fastening portion 23 at one end thereof, which is a part of the main rope 5, and the main rope fastening portion 23 is fastened to the rope coupling member 1. The main ropes 5 are connected to the rope connecting member 1.

The column 12 has a rod-like shape and has a hole (hereinafter referred to as a tube hole) penetrating the inside in the longitudinal direction. The support member 4 will be explained. The support member 4 is composed of a rope and fastening portions 8 fixed to both ends of the rope.

In the structure of the elevator car 100 shown in fig. 2 to 4, the support members 4 are provided 1 at each apex portion 24, and the apex portion 24 to which the support member 4 is fixed is referred to as an apex portion 24 corresponding to the support member 4.

The pillars 12 arranged at the corresponding vertex portions 24 are referred to as corresponding pillars 12. As shown in fig. 4, the 4 support members 4 having one ends fixed to the rope coupling member 1 at the support member fixing positions 25 are respectively tensioned toward the corresponding columns 12, penetrate the tube holes of the corresponding columns 12, and support the corresponding apex portions 24.

Here, the range of the apex portion 24 includes the apex of the car floor 3 and also includes the periphery of the apex. In fig. 2, the car floor 3 is a square in plan view, but may be a convex polygon having 3 or 5 or more vertices. Here, a convex polygon is a polygon having all internal angles less than 180 °. The vertex refers to a vertex constituting a convex polygon, and the vertex portion refers to a vertex and a periphery of the vertex. Each support member 4 supports each vertex 24 of the convex polygon.

As for the form of the support member 4 between the rope coupling member 1 and the column 12, for example, one side of the rope coupling member 1 may be 1, and one side of the column 12 may be branched into a plurality of pieces. Further, one side of the rope coupling member 1 may be branched into a plurality of branches, and one side of the column 12 may be 1 branch. Further, a plurality of support members 4 may support one apex portion 24.

As in the embodiment, if the structure is provided with 1 support member 4 for each apex portion 24, the number of fastening points of the support members 4 to the car floor 3 is small, and the design and manufacture are easy, and the structure can be simple. In the embodiment, the support member 4 includes a rope in which a plurality of fibers are twisted, and fastening portions 8 fixed to both ends of the rope.

The tightening portion 8 is a threaded shaft having a cylindrical shape and having a thread ridge cut on a side surface thereof. The fastening portion 8 is fixed to the rope coupling member 1, thereby coupling the support member 4 and the rope coupling member 1. The portion between the fastening portions 8 of the support member 4 is not limited to the rope.

The fixing portion between the tightening portion 8 and the rope coupling member 1 may be formed by providing a screw hole in the rope coupling member 1 and fitting the tightening portion 8 into the screw hole. Further, the rope connecting member 1 may be provided with a through hole penetrating in the vertical direction, the support member 4 may be disposed so that the tightening portion 8 protrudes upward from the through hole, and the protruding portion of the tightening portion 8 may be fixed by attaching a nut thereto.

The support member 4 preferably has a shape capable of passing through the pipe hole of the column 12, has a strength capable of withstanding the maximum value of the load (allowable maximum load), and is capable of transmitting the tensile force. Here, the fact that the tension can be transmitted means that the extension (deformation) of the support member 4 with respect to the tension applied to the support member 4 is within a certain reference.

For example, a load test may be performed by placing a heavy object on the elevator car 100, and the reference may be determined such that the deformation, the movement amount, and the inclination of the elevator car 100 fall within a certain range under a predetermined load condition. As described above, the material and shape of the support member 4 can be selected in consideration of the load weight, the self weight, the size, and the like of the elevator car 100.

For example, a rod formed by bending in advance into a predetermined shape can be used as the support member 4. Next, the car floor 3 will be explained. As shown in the bottom view of fig. 2, the car floor 3 has a quadrangular shape when viewed in plan. The shape of the car floor 3 is not limited to a quadrangle, and may be a polygon having 3 or more vertices when viewed in a plane, and more preferably a convex polygon.

The car floor 3 supports each apex portion 24 by the support member 4. Even when the arrangement of the load is changed above the car floor 3, the position of the center of gravity of the load is located inside the convex polygon having the vertex 24 as a vertex in a plan view, and thus the bending moment acting on the column 12 due to the offset load can be reduced.

The car floor 3 may be provided with projections, recesses, holes, and the like. Further, the shape of the car floor 3 may be different from a polygon. For example, a corner of the vertex may be chamfered, such as a corner radius (corner radius), and a line connecting the vertices may be different from a straight line.

Further, the shape of the car floor 3 may be different from the convex polygon. For example, the car floor 3 is formed in a circular shape, an elliptical shape, or the like, and the vertex 24 is arranged on the surface of the car floor 3 such that the vertex 24 forms a vertex of a convex polygon. Further, the apex portion 24 is preferably disposed at an end portion of the car floor 3 or a peripheral edge portion which is a portion close to the end portion.

With such a structure, even when the arrangement of the load is changed above the car floor 3, the condition that the position of the center of gravity of the load is within the convex polygon having the vertex 24 as the vertex in a plan view can be satisfied. The peripheral edge portion where the apex portion 24 is disposed may include a point inside the car floor 3 within a range satisfying the above condition.

As shown in fig. 2, if the shape of the car floor 3 is a convex polygon and the vertex 24 is present at the vertex of the car floor 3, most of the car floor 3 is inside the convex polygon having the vertex 24 as a vertex. Therefore, it is more preferable that the position of the center of gravity of the load be able to be more reliably positioned inside the convex polygon having the vertex portion 24 as a vertex in a plan view, regardless of the arrangement of the load.

Next, a fixed portion between the car floor 3 and the support member 4 will be described. Fig. 6 is an enlarged view of a part of an elevator car 100 for implementing embodiment 1 of the present invention. Fig. 6 is an enlarged view of a portion a of fig. 2. The apex portion 24 is provided with a car floor through hole 14 which is a hole penetrating the car floor 3 in the vertical direction.

In fig. 6, the column 12 is disposed such that the pipe hole of the column 12 is positioned vertically above the car floor through hole 14. The column 12 is perpendicular to the face of the car floor 3. Hereinafter, the surface perpendicular to the car floor 3 will be referred to as perpendicular to the car floor 3. In fig. 6, the column 12 is directly provided on the upper surface of the car floor 3, but the lower end of the column 12 may be disposed to face the upper surface of the car floor 3, or may be disposed with a vibration absorbing material or the like interposed therebetween.

The support member 4 passes through the tube hole of the column 12, the car floor through hole 14 of the car floor 3, and the support plate through hole 15 of the support plate 10. The maximum diameter of the fastening portion 8 is smaller than the minimum diameters of the car floor through-hole 14 and the support plate through-hole 15. Here, the diameter means the diameter of the fastening portion 8, the car floor through hole 14, and the support plate through hole 15 in the xy plane of fig. 6.

A fastening member 9 is fastened to a fastening portion 8 of the support member 4 that protrudes toward the lower surface side of the car floor 3, and a support plate 10 is disposed between the fastening member 9 and the car floor 3. The support plate 10 may not be provided. The force acting on the car floor 3 from the support member 4 acts on the car floor 3 from the lower surface side. The fastening member 9 of fig. 6 is a nut.

The fastening member 9 is a member as follows: which is fitted to a fastening portion 8 protruding downward from the lower surface of the car floor 3, and directly or indirectly applies a force to the car floor 3 to receive the weight of the elevator car 100 and its load, and the fastening member 9 is not limited to a nut. Further, the fastening method of the fastening portion 8 and the fastening member 9 is not limited to the screw fastening.

For example, the fastening member 9 may be a metal member such as: it can be attached to the fastening portion 8 without passing through the support plate through hole 15, and has strength to withstand the intended weight. The fastening portion 8 and the fastening member 9 may be fastened by, for example, screwing, welding, riveting, hooking, or a combination thereof.

In fig. 6, the maximum diameter of the outer shape of the fastening member 9 is larger than the minimum diameters of the car floor through hole 14 and the support plate through hole 15. For example, the maximum diameter of the outer shape of the support plate 10 may be larger than the minimum diameter of the car floor through hole 14, the maximum diameter of the outer shape of the fastening member 9 may be larger than the minimum diameter of the support plate through hole 15, and the maximum diameter of the outer shape of the fastening member 9 may be smaller than the minimum diameter of the car floor through hole 14.

In the embodiment, the support member 4 penetrates the car floor through-hole 14 from the upper surface to the lower surface, and can support the car floor 3 from the lower surface. However, the form of fixing the car floor 3 and the support member 4 is not limited to this form, and the support member 4 may be fixed to the upper surface of the car floor 3.

The support member 4 is guided from the upper end to the lower end of the column 12 by the column 12, and therefore, there is no need to additionally provide a member for guiding the support member 4. Therefore, the elevator car 100 can be reduced in weight. Here, the method of fixing the support member 4 to the car floor 3 is not limited to the form shown in fig. 6, as long as the support member 4 supports the car floor 3 at the apex portion 24.

For example, the support member 4 may penetrate the car floor through-hole 14 from the upper surface to the lower surface, the support member 4 may be coupled to the coupling position of the lower surface of the car floor 3, and the coupling position may be located away from the apex portion 24. The support member 4 may be tensioned from the car floor through hole 14 to a connected position, the support member 4 and the car floor 3 may be in contact at the apex portion 24, and the support member 4 may support the car floor 3 at the contact portion.

Further, the support member 4 may be configured as follows. One end of the support member 4 is fixed to the rope connecting member 1, and is stretched from the rope connecting member 1 to the upper end of the column 12 (referred to as a first column 12-1). Further, the pipe hole of the first column 12-1 is formed so as to penetrate from the upper end toward the lower end, and the car floor through hole 14 is formed so as to penetrate from the upper surface toward the lower surface at the apex portion 24 where the first column 12-1 is disposed.

Next, the support member 4 is tensioned from the apex 24 where the first column 12-1 is disposed toward the apex 24 where the other column 12 (referred to as a second column 12-2) is present below the car floor 3, and the car floor through-hole 14 is penetrated from the lower surface toward the upper surface at the apex 24 where the second column 12-2 is present. Further, the support member 4 is passed through the pipe hole of the second column 12-2 from the lower end toward the upper end.

The other end of the support member 4 extending from the tube hole of the second column 12-2 is fixed to the rope connecting member 1. In this way, the structure can be made such that the apex portion 24 at 2 of the car floor 3 is supported by the 1 support members 4 fixed at both ends to the rope connecting member 1.

Next, the car wall 2 will be described with reference to fig. 2 to 5. Fig. 5 is a three-dimensional view showing the car wall 2 of the elevator car 100 for implementing the embodiment 1 of the present invention. The car wall 2 is disposed on the side and back of the elevator car 100, and is not disposed on the front side on which the door is disposed. The car wall 2 is disposed perpendicular to the car floor 3.

The wall panel 11 has a rectangular shape, and 2 sides thereof are arranged perpendicular to the car floor 3. On one surface of the wall panel 11, 2 pillars 12 are joined along 2 sides perpendicular to the car floor 3. In other words, the 2 pillars 12 are joined to the edge of one surface of the wall panel 11 in parallel with two sides perpendicular to the car floor 3.

The columns 12 joined to the wall surface panel 11 are 2 columns 12 disposed at adjacent vertex portions 24 among the columns 12 provided at the respective vertex portions 24. Here, the adjacent vertex 24 is the vertex 24 adjacent to each other with one side of the convex polygon formed by the vertex 24 interposed therebetween.

As shown in fig. 5, the upper beam 6 and the lower beam 7 are joined to the surface of the wall panel 11 on the side where the pillar 12 is joined, along the upper and lower sides parallel to the car floor 3.

In other words, the upper beam 6 and the lower beam 7 are joined in parallel to the upper side parallel to the car floor 3 and the lower side parallel to the car floor 3 at the edge of one surface of the wall panel 11. The columns 12, the upper beam 6 and the lower beam 7 may also be joined to each other for increased strength.

The method of joining the wall panel 11 to the pillar 12, the upper beam 6, and the lower beam 7 may be selected from bonding, welding, screwing, and the like, depending on the material. Since the pillar 12, the upper beam 6, and the lower beam 7 are joined to the car wall 2 shown in fig. 5 along each side of the wall panel 11, the strength and rigidity against the force that bends each side of the wall panel 11 in a bending manner are high.

As with the apex portion 24 on the back side in fig. 2, 2 or more columns 12 may be disposed at 1 apex portion 24. The wall panel 11 may be fastened to the car floor 3 to reinforce the lower portion of the wall panel 11. The following configuration can be provided: newly provided members are provided to reinforce the upper or lower part of the wall panel 11, and the upper beam 6 or the lower beam 7 is omitted.

Further, the car wall 2 and the car floor 3 or 2 adjacent car walls 2 may be fixed by bonding, welding, screwing, or the like. Since the elevator car 100 according to the embodiment supports the car floor 3 from below, an increase in weight due to reinforcement of the fastening structure between the car wall 2 and the car floor 3 or between the adjacent 2 car walls 2 can be suppressed.

The wall panel 11 is not limited to a rectangular shape, and may be formed so as to be perpendicular to the car floor 3 and so as to have one surface joined to the 2 pillars 12 disposed at the adjacent vertex 24. In this structure, the upper beam 6 and the lower beam 7 parallel to the car floor 3 may be joined to the surface of the wall panel 11 to which the pillar 12 is joined.

In the structure of fig. 2 to 4, the wall panel 11 is formed in a rectangular shape, and the posts 12 are joined along the side of the wall panel 11, so that the 2 posts 12 can be joined to the edge portion of the wall panel 11 without being exposed to the wall panel 11 or interfering with the wall panel. Therefore, the strength and rigidity of the car wall 2 can be efficiently improved with a small number of components.

The upper beam 6 and the lower beam 7 parallel to the car floor 3 are joined to the wall surface panel 11, whereby the car wall 2 can be reinforced against the force acting on the car wall 2 while suppressing the amount of the reinforcing member. As described above, the strength of the elevator car 100 can be effectively increased while suppressing the amount of the reinforcing member, and the elevator car 100 having high load-bearing performance and light weight can be provided.

Instead of the upper and lower beams 6 and 7, a member for reinforcing the car wall 2 may be joined to the wall panel 11. For example, a bar-shaped reinforcing member may be added to the rectangular wall panel 11 along a diagonal line of the wall panel 11. The car wall 2 may be reinforced by joining a rod-shaped member to the 2 pillars 12 without joining the wall panel 11.

Next, the shapes and materials of the column 12, the upper beam 6, the lower beam 7, and the wall panel 11 will be described in more detail. As in the embodiment, a square pipe having a quadrangular outer shape and a quadrangular cross section of the pipe hole may be used as the column 12. The upper beam 6 and the lower beam 7 may be rod-shaped or may not have a pipe hole shape.

Instead of the column 12, the upper beam 6, and the lower beam 7, a rod-shaped reinforcing member may be joined to the wall panel 11. As the upper beam 6, the lower beam 7, and the reinforcing member, a pipe material, an L-shaped member, a C-shaped member, an I-shaped member, or the like can be used. The L-shaped section, the C-shaped section and the I-shaped section are respectively bars with the cross sections of the shapes close to the L shape, the C shape and the I shape.

The outer shape of the column 12 or the cross-sectional shape of the tube hole in fig. 4 may be circular, triangular, elliptical, polygonal, or the like. The column 12 may be provided with a projection, a recess, a through hole, a joint surface, and the like for reinforcement, joint with another member, reduction in weight, and the like. The thickness and shape of the cross section may be different depending on the position in the longitudinal direction.

Although the pipe hole penetrates the column 12 in the entire longitudinal direction of the column 12 in fig. 4, a part of the column 12 in the longitudinal direction may be a groove in a range having a function of guiding by restraining the support member 4. In the column 12 provided with the groove portion, a structure in which the pipe hole penetrates the inside, a jig, or the like may be provided in a part in the longitudinal direction in order to prevent the support member 4 from coming off the groove portion.

In this case, clamps 2 may be provided at the upper and lower ends of the column 12. The car floor through hole 14 may function as a jig. The structure in which the pipe hole penetrates the inside in the entire longitudinal direction has a strength independent of the direction in the plane perpendicular to the column 12, compared to the structure in which the groove portion is formed in a part of the longitudinal direction.

In the column 12 of fig. 4, the tube hole is located at the center portion of the cross section of the column 12, and therefore, a lightweight structure having high strength and no anisotropy in strength can be realized. Further, if the column 12 is integrally molded, a structure having high strength and easy to manufacture can be obtained. In particular, when a fiber-reinforced plastic is used as a material, a structure having high strength and easy manufacturing can be obtained.

The material of the upper beam 6, the lower beam 7, the wall panel 11 and the column 12 may be metal such as iron or aluminum. Further, the Fiber-Reinforced plastic may be a Fiber-Reinforced plastic (hereinafter, the Fiber-Reinforced plastic is referred to as FRP (Fiber Reinforced Plastics)) Reinforced with fibers such as carbon fibers and glass fibers. Furthermore, a composite material comprising metal, carbon fibers and glass fibers is also possible.

Next, the front member 19 disposed on the front side where the door is provided will be described. As shown in fig. 2 to 4, the front wall panel 20 has a rectangular shape, and 2 sides are perpendicular to the car floor 3. The 2 adjacent pillars 12 on the front side are joined along 2 sides of the front wall panel 20 perpendicular to the car floor 3.

A front upper beam 21 and a front lower beam 22 are joined along upper and lower sides of the surface of the front wall panel 20 to which the pillar 12 is joined, the sides being parallel to the car floor 3. The front upper beam 21, the front lower beam 22, and the pillar 12 may also be coupled to each other for increased strength. The structure of the front member 19 is not limited to the structure shown in fig. 2 to 4.

In the embodiment, a member (not shown) such as a door may be provided on the front side. When the function of the front member 19, such as enhancing the strength and rigidity of the elevator car 100, is replaced by the door or the like, part or all of the components of the front member 19 may be omitted.

Next, the upper end of the column 12 will be described. Fig. 7 is an enlarged view of a part of an elevator car 100 for implementing embodiment 1 of the present invention. Fig. 7 is an enlarged view of a portion B of fig. 4, showing a plan view and a side view. A support member constraining member 13 is provided at the upper end of the column 12.

The support member restriction member 13 is formed to have an outer shape that can be fitted into a pipe hole at the upper end of the column 12, and the support member restriction member 13 is fixed to the column 12 by bonding, screwing, or the like. The support member constraining section 13 may be fitted so as to cover the outer shape of the column 12. The support member-binding member 13 is provided with a through hole through which the support member 4 passes, and the cross section of the through hole of the support member-binding member 13 is smaller than the cross section of the tube hole of the column 12.

Therefore, by fitting the support member constraining part 13, the movable range of the support member 4 in the horizontal direction (direction in the xy plane) is reduced at the upper end of the pillar 12, reducing the swing of the elevator car 100. As the support member constraining member 13, a solid member molded in consideration of the sectional size of the support member 4 can be used.

As the support member restricting member 13, an elastic material such as vibration-proof rubber that absorbs vibration of the elevator car 100 may be used. The support member restricting part 13 may not be provided. The through hole of the support member constraining member 13 may be made larger than the outer diameter of the fastening portion 8, and after the fastening portion 8 is fixed to the rope portion of the support member 4, the support member 4 may be inserted into the support member constraining member 13.

In the manufacturing process of the support member 4, the rope portion of the support member 4 may be passed through the through hole of the support member binding member 13 before the fastening portion 8 is fixed to the rope portion of the support member 4, and the through hole of the support member binding member 13 may be made smaller than the outer diameter of the fastening portion 8 as shown in fig. 7.

The fixed position of the support member constraining member 13 is preferably the upper end of the column 12, but may be other positions such as the lower end and the center in the longitudinal direction of the column 12. As described above, support member constraining member 13 shown in fig. 7 is attached to column 12, has a through hole smaller than the tube hole of column 12, and support member 4 penetrates the through hole of support member constraining member 13.

Next, the structure of the rope coupling member 1 will be explained. The rope connecting member 1 shown in fig. 2 to 4 is suspended from the main rope 5 and provided above the upper end of the pillar 12. The support member fixing position 25, which is the fixing position of the support member 4 to the rope coupling member 1, may be located outside the convex polygon formed by the vertex portions 24 when viewed from the direction perpendicular to the car floor 3, that is, when viewed in a plane.

In other words, when a perpendicular line is drawn from the support member fixing position 25 with respect to a plane including the car floor 3, the perpendicular line preferably intersects with the convex polygon formed by the vertex portions 24. When the support member fixing position 25 is located inside the convex polygon formed by the vertex portions 24 in plan view, the tension generated in the support member 4 by the weight of the elevator car 100 and the load acts on the column 12 in the direction of the inner side of the convex polygon having the vertex portions 24 as vertices.

Therefore, a force acts between the plurality of car walls 2 in a direction of pressing each other. Further, a force generated by the weight of the elevator car 100 and the weight of the loaded article acts in a direction to bundle the plurality of car walls 2 more strongly. In this configuration, the reinforcement of the fastening portion between the car walls 2 can be further reduced, and the weight of the elevator car 100 can be reduced.

For comparison, a structure in which the support member fixing position 25 is located outside the convex polygon formed by the vertex portions 24 in plan view will be described. In this configuration, the tension generated in the support member 4 acts in the direction of separating the car walls 2 from each other, and the weight due to the reinforcement of the fastening portion between the car walls 2 is increased as compared with the above case.

As described above, the elevator car 100 shown in fig. 2 to 4 has the car floor 3 and the pillars 12. The column 12 has a pipe hole penetrating the inside in the longitudinal direction, and the lower end faces the upper surface of the car floor 3, and the column 12 is disposed perpendicular to the car floor 3 at each vertex 24 that is located at the surface of the car floor 3 and that constitutes the vertex of a convex polygon.

Further, the elevator car 100 shown in fig. 2 to 4 includes a wall surface panel 11 and the support member 4, the wall surface panel 11 is disposed perpendicular to the car floor 3, and 2 pillars 12 disposed at adjacent 2 vertex portions 24 are joined to one surface. The support member 4 passes through the tube hole of the pillar 12, and a portion of the support member 4 extending outward from the inside of the tube hole on the lower end side of the pillar 12 supports the apex portion 24 of the car floor 3.

Further, the elevator car 100 shown in fig. 2 to 4 includes a rope connecting member 1, one end of the support member 4 extending from the inside of the pipe hole to the outside on the upper end side of the pillar 12 is fixed to the rope connecting member 1, and the rope connecting member 1 is suspended above the upper end of the pillar 12 by the main rope 5.

In addition, the elevator car 100 shown in fig. 2 to 4 is provided with one support member 4 corresponding to each apex portion 24. The support member 4 supports the corresponding apex portion 24, and the other end of the support member 4, which extends outward from the inside of the tube hole on the lower end side of the pillar 12, is fixed to the car floor 3.

In the elevator car 100 shown in fig. 2 to 4, the car floor 3 has a convex polygonal shape in plan view, and the vertex portions 24 are located at the respective vertices of the car floor 3.

In the elevator car 100 shown in fig. 2 to 4, the wall panel 11 has a rectangular shape with two sides perpendicular to the car floor 3. Then, the 2 columns 12 respectively disposed at the adjacent vertex portions 24 are joined along both sides of one surface of the wall panel 11.

The elevator car 100 shown in fig. 2 to 4 further includes a bar-shaped upper beam 6 and a bar-shaped lower beam 7. The upper beam 6 is joined along an upper side of one surface of the wall panel 11 parallel to the car floor 3, and the lower beam 7 is joined along a lower side of one surface of the wall panel 11 parallel to the car floor 3.

In the elevator car 100 shown in fig. 2 to 4, the support member fixing position 25, which is the fixing position of the rope coupling member 1 and the support member 4, is located inside a convex polygon having vertices formed by the vertex portions 24 when viewed in a plane perpendicular to the car floor 3.

In the elevator car 100 shown in fig. 2 to 4, a car floor through hole 14 is provided vertically below the pipe hole of the column 12 from the upper surface to the lower surface of the car floor 3. The support member 4 penetrates the car floor through-hole 14, and the fastening member 9 is attached to a portion of the support member 4 that protrudes toward the lower surface side of the car floor 3.

In such an elevator car 100, the car floor 3 can be supported from below by the support member 4 and the fastening member 9. Further, the car floor 3 and the support member 4 can be fixed more firmly. Further, the fixing operation of the car floor 3 and the support member 4 can be easily performed, and the installation operation of the elevator car 100 in the hoistway 202 can be easily performed.

In the elevator car 100 of this embodiment, the load and the self weight of the elevator car 100 are distributed between the support members 4, and the load on the fastening portion of the support members 4 and the car floor 3 is reduced. Further, the car floor 3 is supported by the support member 4, and therefore, a load is not applied to a fastening portion between the structural components of the elevator car 100 except between the car floor 3 and the support member 4.

Further, the center of gravity of the load of the elevator car 100 is located inside the convex polygon formed by the vertex portions 24 when viewed in plan, and therefore, the bending moment applied to the column 12 is reduced. Further, the support member 4 can be guided by the column 12, and therefore, it is not necessary to provide an additional guide member and a member for supporting the guide member.

As described above, according to the invention of the embodiment, it is possible to provide the elevator car 100 having high load-bearing performance and light weight, in which an increase in weight due to reinforcement for resisting the self-weight, the load, and the bending moment can be suppressed as compared with the conventional elevator car.

Next, an example of the orientation direction of the fibers in the case where the material of the member constituting the car wall 2 is FRP will be described with reference to fig. 8. Fig. 8 is a front view and a side view showing the orientation direction of fibers of the car wall 2 of the elevator car 100 for carrying out embodiment 1 of the present invention. Fig. 8 (a) is a front view of the car wall 2, and fig. 8 (b) is a side view of the car wall 2. The direction of orientation of the fibers is indicated by the arrows.

The coordinate axes are shown in fig. 8. The car wall 2 is illustrated parallel to the xz-plane. The column 12 is illustrated parallel to the z-axis and the upper beam 6 and the lower beam 7 are illustrated parallel to the x-axis. A panel material made of FRP is used for the wall panel 11. As shown in fig. 8 (a), the wall panel 11 is a multi-axis laminated plate having 4 orientation directions.

The 4 directions are a vertical axis direction (z-axis direction), a horizontal axis direction (x-axis direction), a first inclination direction, and a second inclination direction. The first and second inclination directions are parallel to the xz plane and inclined at an inclination angle θ with respect to the longitudinal axis direction. The inclination angle θ is an angle smaller than 90 degrees and larger than 0 degree, and preferably ranges from 30 degrees to 60 degrees. It is more preferable to set the inclination angle θ to 45 degrees.

By configuring the orientation direction of the panel material in this way, a panel material whose strength and rigidity do not greatly depend on the direction of force action can be obtained.

Further, for example, 2n layers (n is an integer of 1 or more) are provided in each of the portions having a single orientation direction, and the entire panel material has a laminated structure of 8n layers in total. Further, a plane of symmetry parallel to the surface of the panel material (xz plane of fig. 8 (a)) is provided, and the panel material can be configured to have a laminated structure symmetrical with respect to the plane of symmetry.

With such a laminated structure, the wall panel 11 having a small amount of deformation (warpage) due to the difference between the z-axis characteristic and the x-axis characteristic can be obtained. Here, the characteristics are expansion rate, rigidity, and the like.

Here, although the wall panel 11 made of only FRP is shown in fig. 8, for example, a composite material in which FRP and metal, ceramic, resin, or the like are combined may be used. Then, it is preferable that the column 12, the upper beam 6, and the lower beam 7 have high strength and rigidity against a force acting in the longitudinal direction.

As shown in fig. 8 (a) and 8 (b), a unidirectional material, which is a material in which fibers are oriented in the pipe axial direction, can be used for the upper beam 6, the lower beam 7, and the column 12. Here, the pipe axis direction is a longitudinal direction which is a direction parallel to the penetrating direction of the pipe hole of the column 12. The tube material of the unidirectional material used for the column 12 and the like can also be produced by a drawing molding method.

In addition, in the upper beam 6, the lower beam 7, and the column 12, a composite material of FRP, metal, ceramic, resin, or the like in which fibers are oriented in the pipe axis direction may also be used. The drawing method is a manufacturing method suitable for molding an elongated member having the same cross section in which fibers are oriented in the longitudinal direction, and can efficiently manufacture an elongated member having the same cross section.

By combining the wall surface panel 11 formed of the panel material having the fiber orientation direction as described above with the upper beam 6, the lower beam 7, and the column 12 formed of the pipe material, the car wall 2 having both the force in the x-axis direction and the force in the z-axis direction and having properties such as strength and rigidity close to each other can be obtained. Further, the car wall 2 having high load-resisting performance can be obtained.

As described above, the column 12 shown in fig. 8 contains the fiber reinforced plastic, and the orientation direction of the fibers of the fiber reinforced plastic contained in the column 12 is parallel to the longitudinal direction of the column 12. The wall panel 11 of the elevator car 100 using the car wall 2 shown in fig. 8 includes fiber-reinforced plastic in which the orientation direction of the fibers is parallel to the wall panel 11. Further, the upper and lower beams comprise fiber reinforced plastic, and the fibers of the fiber reinforced plastic contained in the upper and lower beams are oriented in a direction parallel to the longitudinal direction of the upper and lower beams.

The orientation direction of the fibers is constituted by the following 4 directions. The 4 directions are a longitudinal direction which is a direction perpendicular to the car floor 3, a lateral direction which is a direction parallel to the car floor 3, a first inclination direction which is inclined at an inclination angle of 90 degrees or less with respect to the longitudinal direction, and a second inclination direction which is inclined at an inclination angle to the opposite side of the first inclination direction with respect to the longitudinal direction.

In the elevator car 100 of this embodiment, the apex portion 24 as the support point is provided at 3 or more positions on the car floor 3 in plan view, and the load and the self weight of the elevator car 100 are assigned to 3 or more support members 4. Therefore, the support member 4 and the increase in weight due to the reinforcement of the joint portion between the support member 4 and the car floor 3 can be suppressed.

Further, since the car floor 3 located at the lower portion of the elevator car 100 is supported by the support member 4, a portion of the fastening portion between the members on which a load acts, that is, a portion that needs to be reinforced to withstand the load can be reduced.

Further, since the car floor 3 is supported by the vertex portion 24 which is located above the car floor 3 and which constitutes the vertex of the convex polygon, the position of the center of gravity of the load can be secured inside the convex polygon having the vertex portion 24 as a vertex, and the bending moment due to the eccentric load can be reduced. Therefore, an increase in weight due to reinforcement of the column 12 can be suppressed.

Furthermore, according to this embodiment, the support member 4 is guided by the post 12. Therefore, it is not necessary to additionally provide a guide member for the support member 4, and the elevator car 100 having high load-bearing performance and light weight can be provided.

Further, when the support member fixing positions 25 are provided inside the convex polygon having the vertexes 24 as viewed in plan, a force acts on the car walls 2 in the direction of pressing each other, and an increase in weight due to reinforcement of the fastening portions between the car walls 2 can be suppressed.

As described above, according to the embodiment, it is possible to provide an elevator car that can withstand the weight, the offset load, and the like of the elevator car 100 main body and the load while suppressing an increase in weight due to the reinforcing member, the additional member, and the like, compared to the conventional structure.

As described above, according to the invention described in the embodiment, the elevator car 100 having high load-bearing performance and light weight can be provided.

Mode for carrying out the invention

The elevator car 100a used in embodiment 2 has a car wall 2a of a sandwich structure instead of the car wall 2 used in embodiment 1. The car wall 2a has a structure in which a core 16 is disposed between the first wall panel 11-1 and the second wall panel 11-2. Fig. 9 is a three-dimensional view showing a car wall 2a for carrying out embodiment 2 of the present invention.

Fig. 10 is a cross-sectional view of the car wall 2a of the elevator car 100a for implementing embodiment 2 of the present invention. Fig. 10 is a cross-sectional view of plane CC of fig. 9. The car wall 2a according to embodiment 2 further includes a second wall panel 11-2 with respect to the car wall 2 according to embodiment 1. In embodiment 2, the wall panel 11 used in embodiment 1 is referred to as a first wall panel 11-1.

The elevator car 100a used in embodiment 2 is the same as the elevator car 100 used in embodiment 1, except that the car wall 2a is used instead of the car wall 2. In embodiment 2, the same components as those in embodiment 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

The second wall panel 11-2 has a rectangular shape with 2 sides perpendicular to the car floor 3. As shown in fig. 9 and 10, the upper beam 6, the lower beam 7, and the column 12 are joined to one surface of the first wall panel 11-1, as in fig. 5 used in embodiment 1. The upper beam 6, the lower beam 7 and the column 12 are also joined to one face of the second wall panel 11-2.

The 2 pillars 12 are joined along 2 sides perpendicular to the car floor 3 with respect to the second wall panel 11-2. Further, the upper beam 6 and the lower beam 7 are joined to the surface of the second wall panel 11-2 to which the 2 columns 12 are joined. The upper beam 6 and the lower beam 7 are joined along the lower side and the upper side of the second wall panel 11-2 parallel to the car floor 3.

The second wall panel 11-2 is joined to the upper beam 6, the lower beam 7 and the column 12 on the side opposite to the side where the first wall panel 11-1 is joined, the upper beam 6, the lower beam 7 and the column 12 being sandwiched between the first wall panel 11-1 and the second wall panel 11-2.

Further, as shown in fig. 10, a core 16 is disposed between the first wall panel 11-1 and the second wall panel 11-2, and the core 16 is joined to the first wall panel 11-1 and the second wall panel 11-2. The core 16 has a rectangular shape.

The car wall 2a may be further reinforced by joining the core 16 to the upper beam 6, the lower beam 7, and the pillar 12. The car wall 2a has a sandwich structure in which the first wall surface plate 11-1 and the second wall surface plate 11-2 are made of skin materials.

The first wall panel 11-1 and the second wall panel 11-2 preferably have the same shape in a plane perpendicular to the car wall 2a for easy manufacturing, installation, and design, but are not limited to the same shape. The shape is preferably a rectangle that can be easily manufactured, but may be other than a rectangle.

In the case of a shape other than a rectangle, the first wall panel 11-1 and the second wall panel 11-2 may be perpendicular to the car floor 3. Further, 2 pillars 12 arranged at adjacent apexes 24 may be joined to the first wall panel 11-1 and the second wall panel 11-2.

The upper beam 6, the lower beam 7, the pillar 12, and the core 16 may be joined to each other so that the dimension in the direction perpendicular to the car wall 2a is the same and the gap between the components is small, thereby improving the strength of the car wall 2 a.

When the first wall panel 11-1 and the second wall panel 11-2 are formed in a shape other than a rectangle, the upper beam 6 and the lower beam 7 parallel to the car floor 3 may be joined to the first wall panel 11-1 and the second wall panel 11-2.

Next, the material of the components of the car wall 2a will be described. It is preferable that the load applied to the car wall 2a is uniformly applied to both the first wall panel 11-1 and the second wall panel 11-2. Therefore, the core material 16 preferably has a certain rigidity.

Further, as the core material 16, a material and a structure capable of transmitting a load acting on one of the first wall panel 11-1 and the second wall panel 11-2 to the other are preferably selected. For example, a honeycomb material made of aluminum, paper, or the like, or a foam material made of a foamed resin can be used.

As in embodiment 1, the upper beam 6 and the lower beam 7 may be omitted. The core member 16 does not necessarily have to have a rectangular shape, and may be joined to the first wall panel 11-1 and the second wall panel 11-2 and disposed between the first wall panel 11-1 and the second wall panel 11-2.

In addition, a reinforcing material may be provided between the first wall panel 11-1 and the second wall panel 11-2 in addition to the upper beam 6, the lower beam 7 and the column 12. For example, the reinforcing member may be provided along a diagonal line of the rectangular first wall panel 11-1, and the core member 16 may be provided so as to fill the space between the upper beam 6, the lower beam 7, the column 12, and the reinforcing member. The shape of the core 16 in a plane parallel to the car wall 2a may be triangular.

As described above, the elevator car 100a described in the embodiment further includes the second wall panel 11-2 perpendicular to the car floor 3, and the two pillars 12 joined to the first wall panel 11-1 are joined to one surface of the second wall panel 11-2.

The elevator car 100a described in the embodiment further includes a core 16, and the core 16 is disposed between the first wall panel 11-1 and the second wall panel 11-2 and joined to both the first wall panel 11-1 and the second wall panel 11-2.

As described above, according to the embodiment, it is possible to provide an elevator car that can withstand the weight, the offset load, and the like of the main body of the elevator car 100a and the load while suppressing an increase in weight due to the reinforcing member, the additional member, and the like, compared to the conventional structure.

According to the invention described in the embodiment, the elevator car 100a having high load-bearing performance and light weight can be provided. Further, since the car wall 2a has a sandwich structure in which the core material 16 is provided between the first wall surface panel 11-1 and the second wall surface panel 11-2, the car wall 2a and the elevator car 100a having high strength and rigidity can be provided.

Mode for carrying out embodiment 3

The elevator car 100b used in embodiment 3 has the elastic member 17 disposed between the lower surface of the car floor 3 and the support plate 10 in addition to the structure of the elevator car 100 used in embodiment 1. Fig. 11 is a front view and a bottom view of an elevator car 100b for implementing embodiment 3 of the present invention.

Fig. 12 is an enlarged view of a part of an elevator car 100b for implementing embodiment 3 of the present invention. FIG. 12 is

Fig. 11 is an enlarged view of a portion D. The elevator car 100b used in embodiment 3 includes a rope coupling member 1, a car wall 2, a car floor 3, a support member 4, and a front member 19.

One end of the support member 4 is connected to the rope coupling member 1, and the other end is connected to the car floor 3. The elevator car 100b used in embodiment 3 has an elastic member 17 inserted between the lower surface of the car floor 3 and the support plate 10, in addition to the structure of the elevator car 100 used in embodiment 1.

The elastic member 17 of fig. 12 is a vibration-proof rubber. The elevator car 100b used in embodiment 3 is the same as the elevator car 100 used in embodiment 1, except that the elastic member 17 is disposed. In the description of embodiment 3, the same members as those of embodiment 1 are denoted by the same reference numerals, and detailed description thereof is omitted.

Next, a connection portion between the support member 4 and the car floor 3 will be described with reference to fig. 12. The support member 4 passes through the tube hole of the column 12, the car floor through-hole 14 of the car floor 3, the support plate through-hole 15, and the through-hole of the elastic member 17. As in fig. 6 used in embodiment 1, a fastening member 9 is fastened to the thread of the fastening portion 8.

The maximum diameter of the fastening portion 8 is smaller than the minimum diameter of the through hole of the elastic member 17. The force from the support member 4 to the car floor 3 is applied to the car floor 3 via the elastic member 17. The vibration transmitted from the support member 4 to the car floor 3 is absorbed by the elastic member 17, and the vibration of the elevator car 100b is reduced.

For example, instead of the vibration-proof rubber, a plate spring, a compression spring, or a resin material other than rubber may be used as the elastic member 17. In addition, the above materials may be used in combination. The position of the elastic member 17 may be between the fastening member 9 and the car floor 3, and may be above or below the support plate 10. Further, the support plate 10 may be omitted.

As described above, according to the embodiment, it is possible to provide an elevator car that can withstand the weight, the offset load, and the like of the main body of the elevator car 100b and the load while suppressing an increase in weight due to the reinforcing member, the additional member, and the like, compared to the conventional structure.

As described above, according to the invention described in the embodiment, the elevator car 100b having high load-bearing performance and light weight can be provided. Further, the elastic member 17 is disposed between the support member 4 and the car floor 3, and the structure absorbs the vibration transmitted from the support member 4 to the car floor 3, so that the riding comfort of the elevator car 100b can be further improved.

The embodiments described above can be combined and used as appropriate.

Embodiment 4 for carrying out the invention

The elevator car 100c used in embodiment 4 has a car ceiling 300 on the top of the car wall 2 in addition to the structure of the elevator car 100 used in embodiment 1. Fig. 13 is a front view and a plan view of an elevator car 100c for implementing embodiment 4 of the present invention. Fig. 14 is a front view and a plan view of a car ceiling 300 for implementing embodiment 4 of the present invention. Fig. 15 is an enlarged view of a part of the car ceiling 300. That is, fig. 15 is an enlarged perspective view of a portion E which is a vertex of the car ceiling 300 of fig. 14. The car ceiling 300 used in embodiment 4 is configured by a first ceiling panel 301 and a ceiling beam 302.

The first ceiling panel 301 has a convex polygonal shape similar to the car floor 3. The ceiling beams 302 are arranged along the sides of the convex polygon forming the first ceiling panel 301, and are joined to the upper surface of the first ceiling panel 301. As the ceiling beam 302, a pipe material, an L-shaped material, a C-shaped material, an I-shaped material, or the like can be used.

In fig. 14 and 15, the first ceiling panel 301 has a shape in which corners of a vertex portion are formed. Thereby, the support member 4 can penetrate the car ceiling 300. The apex of the first ceiling panel 301 does not necessarily need to have all corners, and for example, a hole of a sufficient size necessary for the support member 4 to penetrate may be provided.

The material of the first ceiling panel 301 and the ceiling beam 302 is not particularly limited as long as it can withstand a load (for example, the weight of an installation worker) directly acting on the upper surface of the first ceiling panel 301. The material of the first ceiling panel 301 may be metal such as iron, aluminum, or the like. Further, FRP reinforced with fibers such as carbon fibers and glass fibers may be used. Furthermore, a composite material comprising metal, carbon fibers and glass fibers is also possible. From the viewpoint of weight reduction, FRP is particularly preferable as the material of the first ceiling panel 301 and the ceiling beam 302. When the material of the first ceiling panel 301 and the ceiling beam 302 is FRP, the orientation direction of the fibers is parallel to the first ceiling panel, and the material properties of the first ceiling panel are isotropic in the in-plane direction of the first ceiling panel. When the material of the ceiling beam 302 is FRP, the orientation direction of the fiber of the FRP included in the ceiling beam 302 is parallel to the longitudinal direction of the ceiling beam 302. Further, the car ceiling 300 is integrally fastened to the upper beam 6. The fastening method is, for example, bolt/nut fastening, but is not particularly limited.

In the case of the structure used for the elevator car 100 of embodiment 1, a compressive load acts on the upper beam 6 via the support member 4. When the loading load is large, the compressive load also increases in proportion thereto, and the risk of buckling failure of the upper beam 6 is high.

In order to prevent buckling failure of the upper beam 6, as the 1 st method, a method of thickening the thickness of the upper beam 6 itself is considered. However, since the upper limit value of the dimension of the upper beam 6 is determined by the relationship with the dimensions of other members and the hoistway, the dimension cannot be determined based on only the buckling failure. Further, there is a problem that the weight is increased by thickening the upper beam 6, and the effect of weight reduction is reduced.

In the elevator car 100c used in embodiment 4, the car ceiling 300 and the upper beam 6 are integrally fastened. With such a configuration, the car ceiling 300 functions as a gusset for the upper member 6, and can prevent buckling failure of the upper member 6. Further, the roof beam 302 is configured to include FRP, and the orientation direction of the fiber of the FRP included in the roof beam 302 is parallel to the longitudinal direction of the roof beam 302, whereby the fiber supports the buckling load, and the entire structure can be reinforced.

Embodiment 5 for carrying out

The elevator car used in embodiment 5 has a car ceiling 300 as in embodiment 4, and the car ceiling 300 is used in embodiment 4 and further has a gusset member 303 between adjacent ceiling beams 302 in addition to the car ceiling 300. Fig. 16 is an enlarged perspective view of the apex of the car ceiling 300 according to embodiment 5. Fig. 17 is an enlarged perspective view of a vertex of the car ceiling 300 of embodiment 5 having the gusset member 303 different from that of fig. 16. Fig. 16 corresponds to fig. 15 used in embodiment 4.

The gusset member 303 used in embodiment 5 is joined to the first ceiling panel 301 and the adjacent 2 ceiling beams 302. With such a configuration, the gusset member 303 reinforces the function of the gusset that the first ceiling panel 301 bears, and can transmit the load acting on the first ceiling panel 301 and the ceiling beam 302 to each other. This makes it possible to make the thickness of the first ceiling panel 301 the minimum thickness capable of withstanding a load (for example, the weight of an installation worker) directly acting on the upper surface of the first ceiling panel 301, and to prevent buckling breakage of the upper beam 6 without excessively increasing the thickness of the first ceiling panel 301.

The gusset member 303 shown in fig. 16 is a triangular shape having a hollow interior, but is not particularly limited to the triangular shape as long as it can be joined to the first ceiling panel 301 and the 2 adjacent ceiling beams 302 and can transmit the load acting on the first ceiling panel 301 and the ceiling beams 302 to each other. The gusset member 303 may have a polygonal shape, for example, a square or more, or may have a shape in which a bar having the same cross section as the ceiling beam 302 is joined by a connecting member 304, as shown in fig. 17. From the viewpoint of weight reduction, the gusset portion 303 is preferably hollow inside.

Embodiment 6 for implementation

The car ceiling 300 used in embodiment 6 is used in embodiment 4, and further includes a core material 305 and a second ceiling panel 306. Fig. 18 is a front view, a plan view, and a cross-sectional view of a car ceiling 300 used in embodiment 6. Fig. 19 is an enlarged perspective view of the apex of the car ceiling 300 according to embodiment 6. Fig. 19 corresponds to fig. 15 used in embodiment 4.

The core material 305 used in embodiment 6 is joined to the first ceiling panel 301, and preferably to all the ceiling beams 302. The second ceiling panel 306 used in embodiment 6 is joined to all of the ceiling beams 302 and the core material 305. As the core material 305, a material and a structure capable of transmitting a load acting on one of the first ceiling panel 301 and the second ceiling panel 306 to the other are preferably selected. For example, a honeycomb material made of aluminum, paper, or the like, or a foam material made of a foamed resin can be used.

With such a configuration, the car ceiling 300 has a sandwich structure in which the first ceiling panel 301 and the second ceiling panel 306 are skin materials, and the rigidity of the car ceiling 300 can be improved.

Claims (21)

1. An elevator car, comprising:

a car floor;

a column having a pipe hole penetrating the interior of the column in a longitudinal direction, a lower end of the column facing an upper surface of the car floor, the column being disposed perpendicular to the car floor at each of vertex portions forming vertices of a convex polygon on the surface of the car floor;

a first wall surface panel in which two of the pillars arranged at two adjacent vertex portions are joined to one surface, and which is arranged perpendicular to the car floor;

a support member that penetrates the tube hole of the pillar, and supports the apex portion of the car floor at a portion of the support member that extends outward from the inside of the tube hole on the lower end side of the pillar; and

and a rope coupling member to which one end of the support member extending outward from the inside of the pipe hole on the upper end side of the column is fixed, the rope coupling member being suspended above the upper end of the column by a main rope.

2. Elevator car according to claim 1,

the elevator car is provided with: a rod-shaped upper beam parallel to the car floor; and a lower beam of a bar shape parallel to the car floor,

the upper beam is joined to the one surface of the first wall panel, and the lower beam is joined to a position below the upper beam on the one surface of the first wall panel.

3. Elevator car according to claim 1 or 2,

one of the support members is provided corresponding to each of the apex portions, and supports the corresponding apex portion, and the other end of the support member, which extends from the inside of the tube hole toward the outside on the lower end side of the pillar, is fixed to the car floor.

4. The elevator car according to any of claims 1-2,

the car floor has a convex polygonal shape, and the vertex portions are located at respective vertexes of the car floor.

5. The elevator car according to any of claims 1-2,

the first wall panel has a rectangular shape in which two sides are perpendicular to the car floor, and the two pillars arranged at the two adjacent vertex portions are joined along the two sides of the one surface of the first wall panel.

6. The elevator car according to any of claims 1-2,

the rope coupling member and the support member are fixed to each other, i.e., the support member is fixed to the support member, and the support member is fixed to the support member by the vertex portion when viewed from a plane perpendicular to the car floor.

7. Elevator car according to claim 3,

a car floor through hole extending from an upper surface to a lower surface of the car floor is provided vertically below the pipe hole of the column, the support member passes through the car floor through hole, and a fastening member is attached to a portion of the support member protruding toward the lower surface of the car floor.

8. The elevator car according to any of claims 1-2,

the elevator car further having a second wall panel perpendicular to the car floor, two of the pillars joined to the first wall panel being joined to one surface of the second wall panel,

the elevator car further includes a core material disposed between the first wall panel and the second wall panel, and the core material is joined to both the first wall panel and the second wall panel.

9. The elevator car according to any of claims 1-2,

the column comprises a fiber reinforced plastic, and the orientation direction of the fibers of the fiber reinforced plastic contained in the column is parallel to the length direction of the column.

10. Elevator car according to claim 2,

the upper beam and the lower beam comprise fiber reinforced plastic, and the orientation direction of fibers of the fiber reinforced plastic contained in the upper beam and the lower beam is parallel to the length direction of the upper beam and the lower beam.

11. The elevator car according to any of claims 1-2,

the first wall panel comprises a fiber-reinforced plastic having a fiber orientation direction parallel to the first wall panel, and the orientation direction is four directions: the car floor includes a longitudinal direction which is a direction perpendicular to the car floor, a lateral direction which is a direction parallel to the car floor, a first inclination direction which is inclined at an inclination angle of less than 90 degrees and more than 0 degrees with respect to the longitudinal direction, and a second inclination direction which is inclined at the inclination angle toward a side opposite to the first inclination direction with respect to the longitudinal direction.

12. The elevator car according to any of claims 1-2,

the elevator car further includes a support member constraining member having a through hole smaller than the tube hole of the pillar, the support member constraining member being fitted to the pillar, the support member penetrating the through hole of the support member constraining member.

13. Elevator car according to claim 7,

the elevator car also has a resilient member disposed between the car floor and the fastening member.

14. Elevator car according to claim 2,

the car wall further has a car ceiling on the upper portion thereof, and the car ceiling includes: a first ceiling panel having the same shape as the car floor; and a ceiling beam disposed on an upper surface of the first ceiling panel along each side constituting the first ceiling panel.

15. The elevator car of claim 14,

the ceiling beam is fastened with the upper beam.

16. The elevator car of claim 15,

the car ceiling has a gusset member that connects the two adjacent ceiling beams.

17. The elevator car of claim 14,

the ceiling beam comprises fiber reinforced plastics, and the orientation direction of fibers of the fiber reinforced plastics contained in the ceiling beam is parallel to the length direction of the ceiling beam.

18. The elevator car of claim 15,

the ceiling beam comprises fiber reinforced plastics, and the orientation direction of fibers of the fiber reinforced plastics contained in the ceiling beam is parallel to the length direction of the ceiling beam.

19. The elevator car of claim 14,

the first ceiling panel comprises a fiber reinforced plastic having fibers oriented in a direction parallel to the first ceiling panel,

further, the material properties of the first ceiling panel are isotropic in the in-plane direction of the first ceiling panel.

20. An elevator car as claimed in any one of claims 14 to 19,

the elevator car further having a second ceiling panel parallel to the car floor, the ceiling beam joined to the first ceiling panel being joined to a lower surface of the second ceiling panel,

the elevator car further includes a core material disposed between the first ceiling panel and the second ceiling panel,

the core is joined to both the first ceiling panel and the second ceiling panel.

21. An elevator apparatus, comprising:

the elevator car of any of claims 1-20, connected to one end of the main rope and suspended inside a hoistway;

a hoisting machine that moves the main rope to raise and lower the elevator car; and

and a counterweight suspended inside the hoistway and connected to the other end of the main rope.

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