JP2005263427A - Car floor of elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a car floor of an elevator which can minimize a welded part, can be miniaturized, and can reduce the manufacturing cost by an appropriate constitution. <P>SOLUTION: The car floor comprises side beam members 1 and 1 arranged in parallel and are faced to each other, a front beam member 4 and back beam member 5 which are arranged in parallel, rectangularly to the side beam members 1 and 1, and faced to each other, a plurality of floor beam members 2 that are bridged and connected between the side beam members 1 and 1 and have a plurality of slits 2a, and floor plate members 3 with U-shaped cross section which have a plurality of slits 3c engaging with the slits 2a of the floor beam members 2. The slits 3c of the plurality of floor plate members 3 are engaged and connected with the slits 2a of the plurality of floor beam members 2. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator car floor, and more particularly to an elevator car floor in which a floor portion is constituted by a plurality of U-shaped floor plate members arranged side by side.

  In the prior art, a sandwich structure comprising a lattice structure of longitudinal and lateral slats intersecting each other and non-removably joined to a base plate and a cover plate at the core portion of the elevator car floor Has been proposed (see, for example, Patent Document 1).

JP 2000-219461 A

In the conventional elevator car floor configured as described above, since many of the components are joined together by welding, a great amount of time is required for the welding operation. It took time to correct the distortion caused by the process, remove and clean the welding burr, and paint after cleaning.
Furthermore, since removal and cleaning of welding burrs are performed by operations such as hitting with a hammer or the like and cutting with a grinder, noise and dust are generated.
In addition, when the base plate or cover plate is welded to the grid-shaped core part, equipment and facilities that transport, install, invert, or incline the base plate or cover plate that is 1 m square or more and 20 kg or more are required, and the production cost is high. To increase.
The base plate and the cover plate are provided with holes for welding with the grid-like core. However, equipment for accurately drilling holes in the base plate and the cover plate having a size of 1 m square or more is required, which increases the cost.
In addition, in the conventional elevator car floor configured as described above, when the car floor is lifted by one corner and is subjected to immersion coating, the openings for the inflow and outflow of the coating liquid are provided in the grid-like core. Necessary at each intersection, there is a problem that this leads to a decrease in rigidity immediately.

  The present invention is to provide an elevator car floor in which the number of welds can be reduced as much as possible, the size can be reduced, and the manufacturing cost can be reduced by an appropriate configuration.

  In the elevator car floor according to the present invention, the first and second beam members facing each other, the third and fourth beam members disposed in a direction perpendicular to the first and second beam members and facing each other, A plurality of floor beam members that are bridge-coupled between the first and second beam members and each provided with a plurality of slit engaging portions, and a plurality of slit members that respectively engage with the slit engaging portions of the floor beam members A floor plate member having a U-shaped cross section provided with a joint portion is provided, and the plurality of floor plate members are fitted and connected by engaging the slit engaging portions of the floor plate member with the slit engaging portions of the floor beam member. The floor portion is constituted by the above.

  According to the present invention, it is possible to provide an elevator car floor in which the number of welds can be reduced as much as possible, the size can be reduced, and the manufacturing cost can be reduced by an appropriate configuration.

Embodiment 1 FIG.
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a view showing a car floor of an elevator according to Embodiment 1, and specifically, is an exploded view showing parts for each member that can be disassembled. FIG. 2 is an explanatory diagram showing the configuration of the floor board member and the pressure contact state in the first embodiment. FIG. 2A is a perspective view showing the configuration of the floor board member in the first embodiment. FIG.2 (b) is explanatory drawing seen from the floor-plate member end surface which shows the state before the press-contact of the floor-plate member in Embodiment 1. FIG. FIG.2 (c) is explanatory drawing seen from the floor-plate member end surface which shows the state after the press-contact of the floor-plate member in Embodiment 1. FIG. FIG. 2D is an explanatory view seen from the end face of the floor board member showing the external force application state in the pressure contact state of the floor board member in the first embodiment. FIG.2 (e) is explanatory drawing seen from the floor board member end surface which shows the external force application condition in a prior art.

In FIG. 1, a plurality of floor beam members 2 are connected to a pair of left and right side beam members 1 by welding, and the floor beam members 2 are provided with a plurality of slits 2a having upper openings.
A slit 3c having a lower opening is provided so as to engage with the slit 2a of the above-mentioned floor beam member 2 in a U-shaped cross section composed of a flat portion 3a forming a floor plate and two ribs 3b perpendicular to the flat portion 3a. The floor board member 3 is fitted and connected.
The slit 2a of the floor beam member 2 has a width corresponding to the thickness of the floor plate member 3, and the slit 3c of the floor plate member 3 has a width corresponding to the thickness of the floor beam member 2. The slit length is about half of the meshing length.
Further, it is desirable that at least the corners of the ends of the slits 2a and 3c have a fillet shape or a semicircular shape in order to avoid stress concentration caused by a load.

The front beam member 4 and the rear beam member 5 having a U-shaped cross section are fitted and connected to the slits 1a and 1b at the front end of the side beam member 1 and the slits 3d and 3e at the front end of the floor board member 3, respectively. .
Note that it is desirable that the ends of the slit 1b and the slits 3d and 3e have a fillet shape or a semicircular shape at least in order to avoid stress concentration caused by a load.

The front beam member 4 and the rear beam member 5 are detachably attached to the side beam member 1 by an attachment member (not shown). The front beam member 4 supports a door sill member (not shown) and the rear beam member 5 (not shown). It has a structure that supports the rear wall of the car.
The side beam member 1 is provided with a support portion for fixing a blocking member that functions as a connector between a car floor and a car frame (not shown).

The floor plate member 3 only needs to have a substantially U-shape, and the two vertical ribs 3b do not necessarily have the same size. For example, the rib on the center side of the floor is large and the rib on the opposite side is small. For example, the overall rigidity can be adjusted within the allowable range.
Further, the front beam member 4 and the rear beam member 5 do not necessarily have a U-shaped cross section, and may have an inverted L shape as long as the overall rigidity is allowable.

With the above-described configuration, the elevator car floor has the floor plate member 3 fitted in the plurality of floor beam members 2 welded to the pair of left and right side beam members 1, and the front beam member 4 and the rear beam member 5 are further fitted. Will be included.
Therefore, the welding location is only the joint location of the side beam member 1 and the floor beam member 2, and the working time related to welding can be greatly reduced as compared with the conventional case.
And since a rib is comprised by the grid | lattice form with respect to a floor surface, a highly rigid cage floor can be obtained.
Moreover, since the floor board member 3 can be configured to be small and light, handling becomes easy, and a conventional large apparatus and equipment for processing and transporting a large floor board are not required.
In addition, since the floor plate member 3, the front beam member 4 and the rear beam member 5 are assembled by fitting, it is possible to perform work even for a person who does not have a special technique such as welding, and the degree of freedom of personnel assignment in the manufacturing process is increased. There is also.
Furthermore, since the floor board member 3 can be shared by the car floors having the same length, the parts are shared, and it is effective in reducing the management cost and the like.
In addition, since the floor board member 3 is configured in a small size, the material yield is improved and the manufacturing cost can be reduced.
If the entire car floor needs to be painted, all of the car floor members will appear on the surface, so there is no need to open a specific part for the coating liquid to flow in and out as in the past, which is a structural limitation. There is almost no.
In addition, since it is possible to assemble the entire assembly after painting each member, the degree of freedom in the configuration of the manufacturing process is improved, the line can be operated efficiently, and as a result, the manufacturing cost can be reduced. .

Then, as shown in FIG. 2 (a), the ribs 3b forming a pair of the floor plate members 3 are configured such that in the free state, the distance from each other toward the tip is slightly wider from the base of the side edge of the flat surface portion 3a. Has been. As shown in FIG. 2B, the floor plate member 3 is juxtaposed so that the flat surface portion 3a forms a floor surface, and is pressed from the outermost side surface. In the fitting connection state of the floor board member 3 to the floor beam member 2, as shown in FIG. 2 (c), the ribs 3 b of the adjacent floor board members 3 are pressed against each other, and the tips of the ribs 3 are bent slightly outward. The floor plate member 3 is coupled to the floor beam member 2 in a state in which a stress is applied so as to be bent inward and a compression internal force is accumulated in the rib b of the floor plate member 3.
When a load is applied to the floor board member 3, as shown in FIG. 2 (e), a tensile force is applied so as to widen the tip of the rib 3b.
As shown in FIG. 2 (d), the compression internal force accumulated in the ribs 3b of the floor board member 3 becomes a resistance force against the force of expanding the ends of the ribs 3b when a load is applied to the floor board member 3 and suppresses deformation. It becomes possible to obtain a floor having high rigidity.
For example, when a structure according to the present invention is applied to a 9-seater elevator with a car floor dimension of 1 m in width, 1.5 m in depth, and a maximum load capacity of 600 kg, the amount of floor deflection when the maximum load of 600 kg is applied is as follows. It was approximately 0.5 mm, which was half of the allowable value of 1 mm.

In the first embodiment, an elevator car floor comprising a floor plate member 3, a side beam member 1, a floor beam member 2, a front beam member 4, and a rear beam member 5 is provided. A plurality of floor beam members 2 provided with slits 2a are welded, and a plurality of substantially U-shaped floor plate members 3 provided with slits 3c engaging with the slits 2a of the floor beam members 2 are fitted and connected. An elevator car floor is proposed in which the rear beam member 5 is fitted and connected to slits 1a, 1b, 3d and 3e provided at the front and rear ends of the side beam members 1 and 1 and the floor plate member 2. Yes.
According to this configuration, the number of welded portions of the car floor is small, and the time required for the welding work is extremely small. Therefore, the manufacturing cost can be greatly reduced. In addition, since it is composed of relatively small and lightweight members, there is no need for a large conveying device / equipment, and by reducing the size of the members, the material yield is improved and the manufacturing cost can be suppressed. There is also.

  According to the first embodiment of the present invention, the first and second side beam members 1 and 1 arranged in parallel with each other and facing each other, and in the direction perpendicular to the first and second beam members in parallel with each other. A plurality of floors provided with a plurality of slit engaging portions 2a that are bridge-coupled between the front beam member 4 and the rear beam member 5, and the first and second beam members 1 and 1 facing each other. A beam member 2 and a floor plate member 3 having a U-shaped cross section provided with a plurality of slit engaging portions 3c that respectively engage with the slit engaging portions 2a of the floor beam member 2, and the plurality of floor plate members 3 are provided. The floor engaging portion 3c of the floor plate member 3 is engaged with and connected to the slit engaging portion 2a of the floor beam member 2 to form a floor portion, and the front beam member 4 and the rear beam member 5 Are the first and second side beam members 1, 1 and the floor plate portion. 2 is fitted and connected to the slit engaging portions 1a, 1b, 3d, 3e provided at the front end and the rear end, so that the welded portion can be reduced as much as possible, the size can be reduced, and the manufacturing cost can be reduced by an appropriate configuration. Elevator car floors that can be reduced can be provided.

  Also, according to Embodiment 1 of the present invention, in the configuration of the preceding paragraph, a U-shaped cross section having a vertical portion comprising a flat portion 3a and a pair of ribs 3b that respectively hang from both side edges of the flat portion 3a. A plurality of floor plate members 3 are arranged side by side to constitute a floor surface portion, and the floor plate member 3 is disposed in a state in which the vertical portions 3b are in pressure contact with each other by applying a compression internal force to each other. It is possible to provide an elevator car floor that can be reduced as much as possible, can be miniaturized, can reduce manufacturing costs by an appropriate configuration, and can improve load resistance.

Embodiment 2. FIG.
A second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a view showing the elevator car floor according to the second embodiment. Specifically, FIG. 3 is an exploded view of each part that can be disassembled.
In the second embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configuration in the first embodiment described above, and exhibits the same operation. In the drawings, the same reference numerals indicate the same or corresponding parts.

3 is different from FIG. 1 in that the positional relationship between the floor beam member 2 and the floor plate member 3 with respect to the side beam member 1 is reversed.
In FIG. 3, both ends of a front beam member 4 and a rear beam member 5 having a reverse L-shaped cross section are connected to the front and rear ends of the pair of left and right side beam members 1 by welding, respectively. Both ends of the plurality of floor beam members 2 are welded to the rear beam member 5. The floor beam member 2 is provided with a plurality of upper opening slits 2a.

A slit 3c having a lower opening is provided so as to engage with the slit 2a of the above-mentioned floor beam member 2 in a U-shaped cross section composed of a flat portion 3a forming a floor plate and two ribs 3b perpendicular to the flat portion 3a. The floor member 3 is fitted and connected.
The slit 2a of the floor beam member 2 has a width corresponding to the thickness of the floor plate member 3, and the slit 3c of the floor plate member 3 has a width corresponding to the thickness of the floor beam member 2. Each slit length is about half of the meshing length.
Further, it is desirable that at least the corners of the tips of the slits 2a and 3c have a fillet shape or a semicircular shape in order to avoid stress concentration caused by improper load.

The front beam member 4 has a structure for supporting a door sill member (not shown), and the rear beam member 5 has a structure for supporting a rear wall of a car (not shown).
The side beam member 1 is provided with a support portion for fixing a blocking member that functions as a connector between a car floor and a car frame (not shown).

  Note that the floor plate member 3 only needs to have a substantially U-shape, and the two surfaces perpendicular to the floor plate surface do not necessarily have the same size. For example, the surface on the center side of the floor is enlarged and the surface on the opposite side Can be adjusted within a range where the overall rigidity and manufacturing cost are allowed.

  In addition, the front beam member 4 and the rear beam member 5 do not necessarily have an inverted L-shaped cross section, and may be, for example, an inverted U shape as long as the overall rigidity is allowed. .

If the above structure is taken, the elevator car floor welds the front beam member 4 and the rear beam member 5 to the pair of left and right side beam members 1 and welds them to the front beam member 4 and the rear beam member 5. The floor plate member 3 is fitted into the plurality of floor beam members 2.
Therefore, the welded portions are only the side beam member 1 and the front beam member 4 and the rear beam member 5, and the front beam member 4 and the rear beam member 5 and the floor beam member 2 are joined to each other. It can be greatly reduced.
And since a rib is comprised by the grid | lattice form with respect to a floor surface, a highly rigid cage floor can be obtained.
Moreover, since the floor board member 3 can be configured to be small and light, handling becomes easy, and a conventional large apparatus and equipment for processing and transporting a large floor board are not required.
In addition, since the floor plate member 3, the front beam member 4 and the rear beam member 5 are assembled by fitting, it is possible to perform work even for a person who does not have a special technique such as welding, and the degree of freedom of personnel assignment in the manufacturing process is increased. There is also.
Furthermore, since the floor board member 3 can be shared by the car floors having the same width, the parts are shared, and it is effective for cost reduction such as management costs.
In addition, since the floor board member 3 is configured in a small size, the material yield is improved, and the production cost can be reduced.
If the entire car floor needs to be painted, all of the car floor members will appear on the surface, so there is no need to open a specific part for the coating liquid to flow in and out as in the past, which is a structural limitation. There is almost no.
In addition, since it is possible to assemble the whole after painting each member, the degree of freedom in the configuration of the manufacturing process is improved, the line can be operated efficiently, and as a result, the manufacturing cost can be reduced. .

In the second embodiment, an elevator car floor comprising a floor plate member 3, a side beam member 1, a floor beam member 2, a front beam member 4, and a rear beam member 5 is welded to a pair of side beam members 1 and 1. A floor plate having a substantially U-shaped cross section in which a plurality of floor beam members 2 provided with a plurality of slits 2a are welded to the front beam member 4 and the rear beam member 5 and a slit 3c that engages with the slit 2a of the floor beam member 2 is provided. There has been proposed an elevator car floor in which a plurality of members 3 are fitted and connected.
According to this configuration, the number of welded portions of the car floor is small, and the work time related to welding is extremely small, so that the manufacturing cost can be greatly reduced. In addition, because it is composed of small and lightweight members, it does not require equipment and equipment for large-scale processing and conveyance, and the material yield can be improved by reducing the size of the members, and manufacturing costs can be reduced. There is also an effect of becoming.

  According to the second embodiment of the present invention, the first and second side beam members 1 and 1 arranged in parallel with each other and facing each other, and the first and second beam members 1 and 1 in parallel with each other. A front beam member 4 and a rear beam member 5 arranged in a direction perpendicular to each other and opposed to each other, and welded to the first and second beam members 1, 1, A plurality of floor beam members 2 provided with a plurality of slit engaging portions 2a therebetween are welded, and a plurality of slit engaging portions 3c that respectively engage with the slit engaging portions 2a of the floor beam member 2 are provided. The floor plate member 3 having a substantially U-shaped cross section is configured to engage and connect the plurality of slit engaging portions 3c with the slit engaging portions 2a of the floor beam member 2 so as to form a floor surface portion. As a result, the number of welds can be reduced as much as possible, the size can be reduced, and the manufacturing cost can be reduced. It is possible to provide a car floor of elevator can be reduced by a switching arrangement.

Embodiment 3 FIG.
A third embodiment of the present invention will be described with reference to FIG. FIG. 4 is a diagram showing an elevator car floor according to the third embodiment. Specifically, FIG. 4 is an exploded view of each part that can be disassembled.
In the third embodiment, the configuration other than the specific configuration described here has the same configuration contents as the configurations in the first and second embodiments described above and exhibits the same operation. It is. In the drawings, the same reference numerals indicate the same or corresponding parts.

The difference from FIG. 1 is that the vertical dimension of the two ribs 3b perpendicular to the floor plate surface 3a of the floor beam member 2 and the floor plate member 3 increases from both ends toward the center.
The maximum stress generated in the ribs 3b of the floor beam member 2 and the floor board member 3 decreases as the vertical dimension increases, and increases as the vertical dimension decreases.
By the way, when the load on the car floor is uniformly distributed, the largest stress is generated in the ribs 3b of the floor beam member 2 and the floor board member 3 in the central portion. This is because the maximum value of the stress generated in the ribs 3b of the floor beam member 2 and the floor board member 3 when a certain partial load is applied to the car floor is the highest when the same partial load is applied to the center of the car floor. It means that it becomes larger and the load part becomes smaller as it goes to the periphery.
Therefore, the vertical dimension of the rib 3b of the floor beam member 2 and the floor board member 3 is set so that the maximum stress generated in the rib 3b of the floor beam member 2 and the floor board member 3 by the maximum partial load to be applied does not exceed the allowable stress. The size can be increased from both ends toward the center.
As a result, the excessively strong portion can be reduced, and the weight can be reduced and the material cost can be reduced.

  Although this embodiment has been described with reference to FIG. 1, it can also be applied to FIG. 2, and the same effect can be obtained.

In the third embodiment, in the configuration in the first or second embodiment, the vertical dimension of the two vertical ribs 3b of the floor beam member 2 and the floor plate member 3 increases from both ends toward the center. Elevator car floors have been proposed which are characterized by
According to this configuration, it is possible to reduce the portion where the strength is excessive, and it is possible to reduce the weight and the material cost.

  According to the third embodiment of the present invention, the floor plate member having a U-shaped cross section having a vertical portion comprising a flat portion 3a and a pair of ribs 3b hanging from both side edges of the flat portion 3a is provided. The vertical dimension of the floor beam member 2 and the vertical dimension of the vertical vertical portion formed by the rib 3b forming the pair of the floor plate members 3 are increased from both ends toward the center portion. It is possible to provide an elevator car floor that can be reduced in size, reduced in size, reduced in manufacturing cost by an appropriate configuration, reduced in excessive strength, reduced in weight, and reduced in material cost.

Embodiment 4 FIG.
A fourth embodiment of the present invention will be described with reference to FIGS. FIG. 5 is a welded portion of the elevator car floor member according to the fourth embodiment. More specifically, FIG. 5 is an exploded view of an enlarged part of one welded portion of the side beam member 1 and the floor beam member 2. FIG. 6 shows another embodiment of the welded portion of the elevator car floor member according to the fourth embodiment, and more specifically, the parts disassembled in which one welded portion of the side beam member 1 and the floor beam member 2 is enlarged and displayed. FIG.
In the fourth embodiment, the configuration other than the specific configuration described here has the same configuration contents as those in the first to third embodiments described above, and has the same operation. Is. In the drawings, the same reference numerals indicate the same or corresponding parts.

In FIG. 5, at the welded portion of the side beam member 1 and the floor beam member 2, the end of the floor beam member 2 protrudes with a size slightly smaller than the vertical dimension and slightly larger than the thickness of the side beam member 1. A convex portion 2b is provided, and the side beam member 1 is provided with a slit 1c into which the aforementioned convex portion 2b can be inserted.
The slits 1c and the convex portions 2b are provided for each welded portion of the pair of left and right side beam members 1 and the plurality of floor beam members 2.

In FIG. 6 which shows a modification, in the welding location of the side beam member 1 and the floor beam member 2, the dimension at the end of the floor beam member 2 is slightly smaller than the plate thickness and slightly larger than the thickness of the side beam member 1. The side beam member 1 is provided with a slit 1c into which the above-described convex portion 2b can be inserted.
The slits 1c and the convex portions 2b are provided for each welded portion of the pair of left and right side beam members 1 and the plurality of floor beam members 2.

By adopting the configuration as described above, when the side beam member 1 and the floor beam member 2 are welded, the convex portion 2b is inserted into the slit 1c and then welded.
Therefore, when the side beam member 1 and the floor beam member 2 are welded, temporary assembly can be easily performed without a special jig, so that work efficiency can be improved and work time related to welding can be shortened.
In addition, since the convex portion 2b is inserted into the slit 1c that has been processed in advance, there is also an effect that the assembly accuracy is stabilized, the yield is improved, and the manufacturing cost is reduced.
It should be noted that at both ends of the slit 1c, it is desirable that at least the corners have a fillet shape or a semicircular shape in order to avoid stress concentration caused by improper load.
5 is described corresponding to the welded portion of the side beam member 1 and the floor beam member 2 in FIG. 1, but the pair of left and right side beam members 1, the front beam member 4 and the rear beam member 5 in FIG. Needless to say, the beam member 4 and the rear beam member 5 can be applied to the welded portions of the plurality of floor beam members 2 and the same effect can be obtained.

In the fourth embodiment, any one of the configurations from the first to third embodiments is used. In the welding portion between the members, one member 1 has a slit 1c and the other member 2 has a slit 1c. It is characterized in that a protrusion 2b that can be inserted is provided.
According to this structure, the temporary assembly at the time of a welding operation becomes easy, and there exists an effect that an assembly precision is stabilized.

  According to the fourth embodiment of the present invention, in any configuration from the first to third embodiments, one member made of the side beam member 1 or the like is formed from the slit 1c in the welded portion between the members. The other member 2 including the floor beam member 2 and the like is provided with the insertion engaging portion including the convex portion 2b that can be inserted into the slit engaging portion including the slit 1c. As a result, it is possible to provide an elevator car floor that can reduce the number of welds as much as possible, reduce the size, reduce manufacturing costs with an appropriate configuration, facilitate temporary assembly during welding, and improve assembly accuracy. it can.

As described above, the elevator car floor according to the present invention is an elevator car floor composed of a floor plate member, a side beam member, a floor beam member, a front beam member, and a rear beam member. A plurality of floor beam members having slits are welded, and a plurality of substantially U-shaped floor plate members having slits that mesh with the slits of the floor beam members are fitted and connected, and the front beam member and the rear beam member are side beam members. It is characterized by being fitted and connected to slits provided at the front and rear ends of the floor board member.
According to the present invention, it is possible to greatly reduce welding work while maintaining the same rigidity as that of a conventional car floor.
This is because the car floor according to the present invention has a rib structure configured in a grid pattern with respect to the floor surface, while the number of welding points is greatly reduced.
In addition, the time required for welding distortion correction and welding burr removal / cleaning is greatly reduced, and the manufacturing cost can be greatly reduced.
Moreover, since it is comprised with a small and lightweight member, a large sized conveyance apparatus and installation are not required.
Furthermore, since the member is downsized, the material yield is improved and the manufacturing cost can be suppressed.
In addition, since all the members are on the surface, there are almost no structural restrictions even when the whole is dip coated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded view showing a configuration in a first embodiment according to the present invention. It is explanatory drawing which shows the structure and press-contacting condition of the floor board member in Embodiment 1 by this invention. It is a component exploded view which shows the structure in Embodiment 2 by this invention. It is a component exploded view which shows the structure in Embodiment 3 by this invention. It is components exploded drawing which shows the structure of the welding part in Embodiment 4 by this invention. It is components exploded drawing which shows the other structure of the welding part in Embodiment 4 by this invention.

Explanation of symbols

1 side beam member, 1a, 1b, 1c slit, 2 floor beam member, 2a slit, 2b convex part, 3 floor plate member, 3a plane part forming floor surface part, 3b rib, 3c, 3d, 3e slit, 4 front Beam member, 5 Rear beam member.

Claims (6)

  First and second beam members arranged parallel to each other and facing each other, and third and fourth beam members arranged parallel to each other and perpendicular to the first and second beam members A plurality of floor beam members bridged between the first and second beam members and provided with a plurality of slit engaging portions, and a plurality of slits respectively engaged with the slit engaging portions of the floor beam members A floor plate member having a U-shaped cross section provided with an engagement portion is provided, and the plurality of floor plate members are fitted and connected by engaging the slit engagement portion of the floor plate member with the slit engagement portion of the floor beam member. The elevator car floor is characterized in that it constitutes a floor surface part.   First and second side beam members arranged parallel to each other and facing each other, and front beam members and rear beam members arranged parallel to each other and perpendicular to the first and second beam members A plurality of floor beam members bridged between the first and second beam members and provided with a plurality of slit engaging portions, and a plurality of slits respectively engaged with the slit engaging portions of the floor beam members A floor plate member having a U-shaped cross section provided with an engagement portion is provided, and the plurality of floor plate members are fitted and connected by engaging the slit engagement portion of the floor plate member with the slit engagement portion of the floor beam member. Thus, the floor portion is configured, and the front beam member and the rear beam member are fitted and connected to slit engaging portions provided at the front and rear ends of the first and second side beam members and the floor plate member. An elevator characterized by Floor.   First and second side beam members arranged parallel to each other and facing each other, and front beam members and rear beam members arranged parallel to each other and perpendicular to the first and second beam members A plurality of floor beam members provided with a plurality of slit engaging portions between the front beam member and the rear beam member welded to the first and second beam members, and the floor A floor plate member having a substantially U-shaped cross-section provided with a plurality of slit engaging portions that respectively engage with the slit engaging portions of the beam member is engaged with the slit engaging portions of the floor beam member. An elevator car floor characterized in that a floor surface portion is formed by fitting and connecting together.   A floor plate member having a U-shaped cross section having a flat portion and a vertical portion depending from both side edges of the flat portion; The elevator car floor according to any one of claims 1 to 3, wherein the dimensions increase from both ends toward the center.   2. A welding portion between members, wherein one member is provided with a slit engaging portion, and the other member is provided with an insertion engaging portion that can be inserted into the slit engaging portion. The elevator car floor according to any one of claims 1 to 4. A plurality of U-shaped floor plate members having a flat surface portion and vertical portions respectively hanging from both side edges of the flat surface portion are arranged side by side to form a floor surface portion, and the floor plate member is The elevator car floor according to any one of claims 1 to 5, characterized in that they are arranged in a state of being pressed against each other by applying a compression internal force to each other.

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