JP2022128029A - Assembly structure of elevating stairway passage - Google Patents

Abstract

To reduce assembly time of an elevating stairway passage.SOLUTION: An assembly structure 10 of an elevating stairway passage includes a framework 12 provided on a vehicle structure, a stairway part 24 in which treads and rises are alternately provided, two panels 40, 42 serving as inner walls, which face each other on the elevating stairway passage, a lower bolted structure and an upper bolted structure for mounting a lowermost stage and an uppermost stage of the stairway part 24 on the framework 12, a lower mounting metal fitting for connecting each of lower parts of the two panels 40, 42 to the stairway part 24, and an upper mounting metal fitting for mounting each of upper parts of the two panels 40, 42 on the framework 12. The stairway part 24 and the two panels 40, 42 can be respectively carried in an actual vehicle and mounted thereon while a plurality of component parts that constitute the stairway part and the two panels are preassembled and subjected to required processing, thereby making it possible to drastically reduce assembly time of the elevating stairway passage.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to an assembly structure of a staircase passage used in a railway vehicle having a passenger compartment whose floor height is different from that of an entrance platform.

For example, in a two-story railway vehicle having a passenger room whose floor height is different from that of the entrance/exit, it is possible to move between the entrance/exit provided at the same height as the platform and the upper and lower rooms. A stair passage is provided (see Patent Document 1, for example). In such an ascending/descending stair passage, not only the stair portion including the treads but also various other parts are used.

Japanese Patent No. 5827608

Here, many of the parts for forming the stair passages are constructed in the actual vehicle when manufacturing the railway vehicle. For this reason, it takes time and effort to position each part, and the work space is narrow.
SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to reduce the assembly time of a staircase passage.

(Mode of invention)
The following aspects of the invention exemplify configurations of the present invention, and will be described separately in order to facilitate understanding of the various configurations of the present invention. Each term does not limit the technical scope of the present invention, and while considering the best mode for carrying out the invention, replaces, deletes, or further The technical scope of the present invention can also include the addition of the constituent elements.

(1) In a railway vehicle having a passenger compartment whose floor height is different from that of an entrance platform, an assembly structure of an elevator stair passage connecting between the entrance platform and the passenger compartment, comprising a frame provided in the vehicle structure, and a footboard. a staircase having alternating ridges and risers, two panels forming opposing inner walls of the stairway passage, a lower bolting structure for attaching the bottom step of the staircase to the framework, and an upper bolting structure for attaching the uppermost step of the staircase to the framework; a lower fitting for connecting the lower portion of each of the two panels to the staircase; and an upper fitting for attaching each upper portion to said framework (Claim 1).

The assembly structure of the stairway passage for railway vehicles described in this section is applied to the stairway passage that connects between an entrance platform and a passenger room whose floor height is different from that of the entrance platform. Includes steps, two panels, lower and upper bolted structures, and lower and upper brackets. The framework is provided in the vehicle structure and is the base of the staircase passage. The stair portion is provided with treads and risers alternately, and as the name suggests, is a portion that substantially forms a staircase. are erected on both sides of the

Also, the lower bolting structure and the upper bolting structure are for attaching the lowermost step and the uppermost step of the step portion to the framework. For this reason, the step portion attached to the framework via these bolting structures is treated as one component that can be retrofitted. Furthermore, the lower fittings are for connecting the lower part of each of the two panels to the stepped portion and the upper fittings are for attaching the upper part of each of the two panels to the framework. Therefore, each of the two panels attached to the stepped portion and the framework via these fittings is treated as one component that can be retrofitted after the stepped portion.

Therefore, at the time of manufacturing the railroad car, each of the staircase portion and the two panels is supposed to be carried into the actual car and attached in a state in which a plurality of parts constituting them are pre-assembled and the necessary processing is performed. Become. As a result, there is no need to position the parts that make up the staircase and the two panels on the actual vehicle. Instead, it is efficiently performed in a factory or the like, so the time required to assemble the staircase passage is greatly reduced. In addition, by pre-assembling the parts that make up the staircase and two panels, and by attaching the staircase and two panels using a bolted structure and mounting brackets, the welding work on the actual vehicle is reduced, so it is possible to The quality of the passage will be improved.

(2) In the item (1) above, the stair portion includes a flooring material covering the treads and the riser, a non-slip step attached to the end of the treads from above the flooring, the treads and a side wall attached to the side of the riser, wherein the lower fitting connects the lower portion of each of the two panels to the side wall (Claim 2). ).
The assembly structure of the hoisting stair passage described in this section is such that the stair section includes flooring, non-slip steps and side walls, which are pre-assembled to the stair section. That is, the flooring is attached so as to cover the treads and risers, the non-slip steps are attached to the ends of the treads from above the flooring with screws, etc., and the side walls are attached to the sides of the treads and risers by welding or the like. Furthermore, processing such as painting is applied as necessary. Since the pre-assembled staircase portion is attached to the actual vehicle, the assembling time of the passageway for the ascending/descending stairs is further reduced.

In addition, when manufacturing a railway vehicle, the lower portions of each of the two panels that are carried into the actual vehicle are connected to the side wall of the staircase via the lower fittings, and the connection points are the treads and kickers of the staircase. It will be located at a height dependent on the sidewalls connected thereto, rather than at the upper lateral ends. Therefore, by devising the positional relationship of each member in view of the connection state, it becomes difficult for passengers passing through the stair passage to see the connection point, and it becomes unnecessary to provide a pressing surface between the panel and the side wall. This eliminates the need for various operations for mounting the pressing surface, such as positioning, thereby reducing the amount of work on the actual vehicle.

(3) In the above item (2), the bolt holes of the upper bolting structure are installed in the floor material of the guest room or the access platform and the uppermost step with the uppermost step attached to the framework. An assembly structure for a hoisting stair passage covered by non-slip steps (Claim 3).
The assembly structure of the ascending/descending stair passage described in this section is such that the bolt holes of the upper bolt-fixing structure are attached to the frame of the upper bolt-fixing structure while the top step of the stair is attached to the frame via the upper bolt-fixing structure. It is covered by flooring and a non-slip step at the top of the staircase. That is, after being bolted in the upper bolting structure, the floor material of the passenger compartment and access platform is laid over the bolt holes, and the uppermost non-slip step is attached from above. As a result, the bolt holes of the upper bolt-fixing structure are hidden and invisible to the passengers, thereby preventing the appearance of the stair passage from being spoiled.

(4) In items (1) to (3) above, the bolt holes of the lower bolted structure are covered by the floor material of the access platform or the passenger compartment in a state where the lowest stage is attached to the framework. Assembled structure of the ascending/descending stair passage (Claim 4).
The assembly structure of the ascending/descending stair passage described in this section is such that the bolt holes of the lower bolt-fixing structure are attached to the frame by way of the lower bolt-fixing structure so that the bottom step of the staircase is attached to the frame via the lower bolt-fixing structure. It is covered with flooring. That is, after bolting in the lower bolting structure, the access board and the floor material of the passenger compartment are laid over the bolt holes. As a result, the bolt holes of the lower bolt-fixing structure are hidden and invisible to the passengers, thereby preventing the appearance of the stair passage from being spoiled.

(5) In items (1) to (4) above, the staircase passage connects between the access platform and the passenger cabin while curving in plan view, and the framework is curved in plan view. A partition post erected near the center of the partition post, the middle portion of which spans at least a part of the height range in which the stepped portion is installed divides from the upper end side and the lower end side of the partition post An assembling structure of an ascending/descending stairway passage having a three-part structure that can be divided through a staircase, wherein the parts are connected by bolts (Claim 5).
The assembly structure of the staircase passage described in this section is such that the staircase passage to which it is applied connects between the entrance platform and the passenger compartment while curving (including curved and polygonal shapes) in a plan view. The frame provided in the structure includes a partition post erected in the vicinity of the center of the bend of the ascending/descending stair passage that bends in a plan view. Such partition posts are necessary to ensure strength, but due to their installation position, when the pre-assembled staircase is brought into the actual vehicle, it is difficult to move the staircase to the installation position. There is a risk that it will interfere with the direction change.

However, in the partition pillars of the assembly structure of the staircase passage described in this section, the midway portion covering at least a part of the height range where the stairs are installed in the actual vehicle is divided from the upper end side and the lower end side of the partition pillars. It has a possible three-division structure. This prevents the partition posts from interfering with the stairs because the middle part of the partition posts is removed when the stairs are brought in, so changing the installation position of the partition posts will affect the strength. The staircase portion is carried in to the installation position without any need. Moreover, from the viewpoint of workability, it is desirable that the upper and lower ends of the partition pillars are connected to the vehicle structure by welding or the like before the stairs are carried in. A connection to the vehicle structure only on the side and bottom side is realized. Furthermore, the upper end side and the middle portion of the partition column, which are the divided portions of the three-part structure, and the middle portion and the lower end side are connected via bolts. For this reason, workability of installing the partitioning posts is not lowered, and the carrying-in work of the stair portion can be carried out without any problem.

(6) In items (1) to (5) above, each of the two panels is configured by attaching a decorative sheet to the surface of a plate, and the lower mounting bracket and the upper mounting bracket are attached to the plate. Assembling structure of the ascending/descending stair passage attached to the back surface (Claim 6).
In the assembly structure of the staircase passage described in this section, each of the two panels is configured by attaching a decorative sheet to the front surface of the plate material, and the lower mounting bracket and the upper mounting bracket are welded to the back surface of the plate material. It is installed. Since the two panels pre-assembled to such a state are attached to the actual vehicle, the assembly time of the staircase passage can be further reduced. Furthermore, in a state in which the panel is installed on the actual vehicle, the lower mounting bracket and the upper mounting bracket attached to the back surface of the plate material are directed toward the inside of the stairway passage and from the surface side of the plate material to which the decorative sheet is attached. The two panels are attached via the lower bracket and the upper bracket without impairing the aesthetic appearance of the stairway passage because they are not visible.

Since the present invention is configured as described above, it is possible to reduce the assembly time of the staircase passage.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view schematically showing a structure around a staircase passage of a railway vehicle to which an assembly structure for a staircase passage according to an embodiment of the present invention is applied; BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of a part of a railway vehicle, showing an example of the configuration of an assembly structure for a passageway for ascending/descending stairs according to an embodiment of the present invention; FIG. 3 is a cross-sectional view taken along line AA of FIG. 2; 1 is a perspective view showing a staircase portion of an assembly structure for an ascending/descending stairway passage according to an embodiment of the present invention; FIG. FIG. 5 shows the stepped portion of FIG. 4, where (a) is a plan view and (b) is a cross-sectional view taken along line BB in (a). 5(b) shows details of the D part, where (a) is a side view from the left side in (b), and (b) is an enlarged cross-sectional view of the D part. It is an expanded sectional view of the code|symbol E part in FIG.5(b). 1 shows one panel of the assembly structure of the staircase passage according to the embodiment of the present invention, where (a) is a plan view, (b) is a side view, and (c) is a front view. The other panel of the assembly structure of the staircase passage according to the embodiment of the present invention is shown, (a) is a plan view, (b) is a side view, and (c) is a front view. 8(a) shows a mounting bracket of an assembly structure for an elevator stair passage according to an embodiment of the present invention, and (a) is a cross section taken along the FF line of FIG. 8(c) and the GG line of FIG. 9(c). The upper fitting shown in the figure, and (b) the lower fitting seen from the side in a state where the panel and the stepped portion are connected.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. Here, detailed description of the same or corresponding parts as in the prior art is omitted, and the same or corresponding parts are indicated by the same reference numerals throughout the drawings.
FIG. 1 shows an example of a front view of a railway vehicle 80 to which the stairway passage assembly structure 10 according to the embodiment of the present invention is applied, with a stairway passage 86 viewed from the side of an entrance board 84. This railway car 80 has a two-story structure having upper and lower rooms (not shown) as guest rooms. Thus, it is possible to move to an upper room whose floor surface is higher than the entrance/exit platform 84 or a lower floor room whose floor surface is lower than the entrance/exit platform 84 . The ascending/descending staircase passage 86 of the embodiment of FIG. 1 leads from the access platform 84 to the upper or lower room while bending about 90° in plan view. Each stairway passage 86 uses various components such as handrails 88 and a divider panel 90 is interposed between the entrances of the two stairway passages 86 .

In the following, of the two staircase passages 86 shown in FIG. 1, the staircase passage 86 shown on the left side of FIG. A case in which the assembly structure 10 for the staircase passage according to the embodiment is applied will be described as an example.
First, referring to FIGS. 2 and 3, an assembly structure 10 for a staircase passage according to an embodiment of the present invention includes a framework 12 having partition posts 14 and the like, a staircase portion 24 forming a substantial staircase portion, It includes an outer panel 40 that forms the outer inner wall of the stairway passage 86 that is curved in plan view, an inner panel 42 that forms the inner wall of the stairway passage 86, and the like.

The framework 12 is provided in the vehicle structure of the railroad vehicle 80, and is configured by combining a plurality of bone members that support other components of the assembly structure 10 for the stairway passage. Such frames 12 include, in addition to partition posts 14, struts 18 (see FIGS. 4 and 6), landing boards 20, and floor supports 22, etc., which will be described later. As can be seen in FIG. 3, the partition post 14 is erected near the center of the bend of the 90° curved staircase passage 86, and extends vertically from the upper end of the vehicle structure to the vicinity of the lower end. The upper end and lower end (not shown) of the partition column 14 are welded to other members of the vehicle structure. Also, the partition column 14 is divided into three parts via two divided parts 16 connected by bolts. For this reason, the partition column 14 has an upper end side 14a and a lower end side 14c which are welded to other members of the vehicle structure by attaching and detaching the bolts of the divided portion 16, and the intermediate portion 14b between them is attached to or removed from them. be. As can be seen in FIG. 2, the middle portion 14b of the partition column 14 of this embodiment covers the entire height range in which the step portion 24 is installed. The bone members forming the frame 12 are made of appropriate materials according to the strength required for each.

4 and 5, the stair portion 24 bends about 90° in a plan view corresponding to the shape of the stairway passage 86, and the treads 26 and the risers 28 extend from the lowermost step 24a to the uppermost step 24b. are provided alternately. In this embodiment, four treads 26 and five risers 28 are provided between the lowermost step 24a and the uppermost step 24b. Side walls 34, which are accordingly painted, are connected by welding or the like. The treads 26, the risers 28, and the side walls 34 are made of, for example, an aluminum alloy. A floor material (floor covering) 30 is laid so as to cover the treads 26 and the risers 28, and one side wall is provided at the tip of each tread 26 (on the right side in FIG. 5(b)). A non-slip step 32 extending between 34 and the other side wall 34 is attached from above the floor material 30 by screws or the like. More specifically, as shown in FIG. 10(b), the floor material 30 is laid on the treads 26 (also the risers 28) to the vicinity of the side walls 34, and the seals 36 are provided between the floor material 30 and the side walls 34. It is A non-slip step 32 is attached from above the floor material 30 .

5(a) and 6, the uppermost step 24b of the stepped portion 24 is provided with four bolt holes 62. Four U-shaped stair bridges 64 are attached to the lower side of the uppermost step 24b by welding or the like with the U-shaped opening side facing upward. The uppermost step 24b of such a step portion 24 is placed on the strut 18 constituting the frame 12 described above, and the stair support 64 and the strut 18 are connected with a bolt 66 via a liner or the like. The strut 18 has a U-shape as viewed in FIG. side) and is also illustrated in FIG. The bolt holes 62 , step supports 64 , and bolts 66 described above constitute an upper bolting structure 60 for attaching the uppermost step 24 b of the step portion 24 to the strut 18 . Further, as shown in FIG. 6, in the bolted state as described above, a floor material (floor covering) 76 for the upper room (landing) is laid from above the bolt holes 62, and further from above the floor material (floor covering) 76 is laid. A non-slip step 32 at 24b is attached.

On the other hand, referring to FIGS. 5(a) and 7, the lowermost step 24a of the step portion 24 is provided with four bolt holes 54, and such a lowermost step 24a constitutes the framework 12 described above. It is placed on the floor support 22 . The bottom step 24a and the floor support 22 are connected via a liner or the like by a bolt 56 inserted through the bolt hole 54. As shown in FIG. The bolt holes 54 and the bolts 56 constitute a lower bolting structure 52 for attaching the lowermost step 24 a of the staircase portion 24 to the floor support 22 . Further, the floor material 78 (the floor covering 78a and the floor covering 78b) of the loading/unloading table 84 is laid over the bolt holes 54 and the bolts 56 in the bolted state as described above. In the present embodiment, a pressing surface 58 is provided at the boundary between the flooring 30 covering the riser 28 and the flooring 78 of the access platform 84 .

Next, referring to FIG. 8, the outer panel 40 has a generally arcuate shape warped corresponding to the curve of the staircase passage 86 in plan view as shown in FIG. 8(a). 46 and a plurality of stiffeners 48 . More specifically, a decorative sheet 46 is applied to the surface 44a of the board 44 that faces the inner panel 42 in the stairway passage 86, and a plurality of stiffeners are applied to the opposite back surface 44b of the board 44 as necessary. 48 is attached by welding or the like. The plate member 44 is made of, for example, an aluminum alloy. In addition, on the back surface 44b of the plate 44 are a plurality of lower fittings 70 for connecting the lower portion of the outer panel 40 to the sidewalls 34 of the stepped portion 24 and an upper portion for attaching the upper portion of the outer panel 40 to the framework 12. A mounting metal 74 is attached by welding or the like.

In this embodiment, five lower fittings 70 are attached as a plurality of lower fittings 70 along the lower end of the outer panel 40, each of which has a shape as can be seen in FIG. 10(b). is doing. That is, the lower mounting bracket 70 of this embodiment is composed of a first portion 70a attached to the outer panel 40 and a second portion 70b extending further downward from the back side thereof. By fixing the second portion 70b of each of the lower fittings 70 to the side wall 34 of the stepped portion 24 with screws 72, the lower portion of the outer panel 40 and the stepped portion are connected via the plurality of lower fittings 70. 24 side walls 34 are connected. 8, the upper mounting metal 74 of this embodiment is mounted along the upper end of the outer panel 40, and has a crank-like sectional shape in the extending direction as shown in FIG. 10(a). and protrudes from the upper end of the outer panel 40. - 特許庁By fixing the portion of the upper mounting bracket 74 located above the outer panel 40 to the frame 12 by an appropriate method, the upper portion of the outer panel 40 and the frame 12 are connected via the upper mounting bracket 74. is connected.

Referring to FIG. 9, the inner panel 42 has a generally arcuate shape warped corresponding to the curve of the staircase passage 86 in plan view as shown in FIG. 9(a). , decorative sheet 46 , and a plurality of reinforcing members 48 . More specifically, a decorative sheet 46 is attached to the surface 44a of the board 44 that faces the outer panel 40 in the stairway passage 86, and a plurality of stiffeners are applied to the opposite back surface 44b of the board 44 as necessary. 48 is attached by welding or the like. Further, similarly to the outer panel 40 in this respect, the back surface 44b of the plate member 44 is provided with a plurality of lower fittings 70 for connecting the lower portion of the inner panel 42 to the side wall 34 of the step portion 24, and the inner panel 42. An upper fitting 74 for attaching the upper part to the framework 12 is attached by welding or the like. In this embodiment, five lower fittings 70 are attached as a plurality of lower fittings 70 along the lower end of the inner panel 42, and their shapes and the like are similar to those shown in FIG. 10(b). Therefore, detailed description is omitted. Also, the upper mounting metal 74 attached along the upper edge of the inner panel 42 is the same as that shown in FIG.

Here, the stairway passage assembly structure 10 according to the embodiment of the present invention is not limited to the configuration shown in FIGS. 1 to 10 . For example, the number of treads 26 and risers 28 of the stair section 24, the overall shape of the stair section 24, and the shape of the outer panel 40 and inner panel 42 may be determined in an appropriate quantity or quantity depending on the shape of the stairway passage 86 to which it is applied. shape is adopted. The shape of the ascending/descending staircase passage 86 to which the method is applied is not limited to one bent at an angle of 90° in a plan view, and may be bent at an angle other than 90° or linear. In addition, the components and shapes of the lower bolting structure 52, the upper bolting structure 60, the lower mounting bracket 70, and the upper mounting bracket 74 may be arbitrary components and shapes as long as their functions can be satisfied. is. In addition, the stairway passageway assembly structure 10 according to the embodiment of the present invention is not shown from the access platform 84 shown on the right side of FIG. 1 of the two stairway passageways 86 shown in FIG. To the extent possible, it may be applied to the stairway passageway 86 leading to the lower room. Furthermore, it is not limited to the stairway passage 86 of a two-story railroad vehicle 80, but the stairway of any railroad vehicle having a passenger compartment whose floor height is different from the access platform 84, such as the stairway passage 86 of a high-decker car. It may be applied to passageway 86 .

Now, according to the embodiment of the present invention having the above configuration, it is possible to obtain the following effects. That is, the assembly structure 10 of the stairway passage according to the embodiment of the present invention includes an access table 84 and a guest room (upstairs room or downstairs room) having a floor height different from that of the access table 84 as shown in FIG. 2 and 3, the frame 12, the stair section 24, the two panels 40, 42, the lower bolting structure 52 and the upper bolt It includes a stop structure 60 (see FIGS. 6 and 7) and a lower bracket 70 and an upper bracket 74 (see FIGS. 8-10). The framework 12 is provided in the vehicle body structure of the railroad vehicle 80 and is the base of the stairway passage 86 . As shown in FIGS. 4 and 5, the staircase portion 24 is provided with treads 26 and risers 28 alternately, forming a substantial staircase as the name suggests. As shown in FIGS. 2 and 3, they are portions forming opposing inner walls of the ascending/descending staircase passage 86, and are erected on both sides of the staircase portion 24 during assembly.

The lower bolting structure 52 and the upper bolting structure 60 are for attaching the lowermost step 24a and the uppermost step 24b of the step portion 24 to the frame 12, as shown in FIGS. Therefore, the step portion 24 attached to the framework 12 via these bolting structures 52, 60 can be treated as one component that can be retrofitted. Furthermore, the lower fitting 70 is for connecting the lower part of each of the two panels 40, 42 to the stepped portion 24, as shown in FIG. For attaching the upper portion of each of the panels 40 , 42 to the framework 12 . Therefore, each of the two panels 40, 42 attached to the stepped portion 24 and the frame 12 via these fittings 70, 74 can also be treated as one component that can be retrofitted after the stepped portion 24.

Therefore, when manufacturing the railway vehicle 80, each of the staircase portion 24 and the two panels 40 and 42 is pre-assembled with a plurality of parts constituting them and subjected to necessary processing, and then carried into the actual vehicle. can be installed. As a result, it is possible to eliminate the need for the positioning of the parts that constitute the staircase portion 24 and the two panels 40 and 42 in the actual vehicle. The assembly and processing of each part can be efficiently performed at a factory instead of the actual vehicle. Therefore, it is possible to significantly reduce the assembly time of the ascending/descending staircase passage 86 . Furthermore, by pre-assembling the parts that make up the staircase portion 24 and the two panels 40 and 42, and by attaching the staircase portion 24 and the two panels 40 and 42 using the bolted structures 52 and 60 and the mounting metals 70 and 74, Since the welding work on the actual vehicle can be reduced, the quality of the ascending/descending stair passage 86 can be improved.

In addition, the staircase passage assembly structure 10 according to the embodiment of the present invention is such that the staircase passage 86 to which the present invention is applied connects the access table 84 and the passenger cabin while bending in a plan view. And, as shown in FIG. 3, the frame 12 provided in the vehicle structure includes a partition post 14 erected near the center of the curve of the staircase passage 86 that curves in a plan view. Such a partition post 14 is necessary to ensure strength, but due to its installation position, when the pre-assembled staircase portion 24 is carried into the actual vehicle, the installation position of the staircase portion 24 cannot be adjusted. There is a risk that it will interfere with movement to and direction change. However, in the partition post 14 of the assembly structure 10 of the staircase passage according to the embodiment of the present invention, the middle portion 14b covering at least a part of the height range in which the stair portion 24 is installed in the actual vehicle is the partition post 14 It has a three-divided structure that can be divided from the upper end side 14a and the lower end side 14c. Thus, by removing the middle portion 14b of the partition post 14 when the step portion 24 is carried in, it is possible to prevent the partition post 14 from interfering with the step portion 24, so that the installation position of the partition post 14 can be changed. The staircase portion 24 can be carried in to the installation position without affecting the strength.

Moreover, from the viewpoint of workability, it is desirable that the upper and lower ends of the partition post 14 are connected to the vehicle structure by welding or the like before the step portion 24 is carried in. Connection to the vehicle structure can be realized only on the upper end side 14a and the lower end side 14c of 14 . Further, the upper end side 14a and the middle portion 14b of the partition column 14, and the middle portion 14b and the lower end side 14c, which are the divided portions 16 of the three-part structure, are connected via bolts. It's becoming For this reason, it is possible to carry in the work of carrying in the staircase portion 24 without lowering the workability of attaching the partition post 14 . In addition, the position of the dividing part 16 of the partition column 14 does not affect the direction of the staircase part 24 in the railway vehicle 80, the common workability between the upper room side and the lower room side, and the strength. should be decided with this in mind.

Furthermore, as shown in FIGS. 4 and 5, in the assembly structure 10 of the stair passage according to the embodiment of the present invention, the stair portion 24 includes a floor material 30, a non-slip step 32, and a side wall 34, which are It is pre-assembled to the staircase portion 24 . That is, the floor material 30 is attached so as to cover the treads 26 and the risers 28 , the non-slip steps 32 are attached to the ends of the treads 26 from above the flooring 30 with screws or the like, and the side walls 34 are attached to the treads 26 and the risers 28 . It is attached to the side of 28 by welding or the like, and further processed such as painting as necessary. Since the staircase portion 24 preassembled so far can be attached to the actual vehicle, the assembly time of the ascending/descending staircase passage 86 can be further reduced.

10(b), the lower parts of each of the two panels 40 and 42 carried into the actual vehicle at the time of manufacturing the railroad vehicle 80 are attached to the stepped portion 24 via the lower fittings 70. It is connected to the side wall 34, and the connection point is located at a height corresponding to the side wall 34 connected thereto, rather than at the side end of the tread 26 or riser 28 of the stair section 24.例文帳に追加Therefore, by devising the positional relationship of each member in consideration of the connection state, it is possible to make it difficult for passengers passing through the stairway passage 86 to see the connection point, and the pressing surface between the panels 40 and 42 and the side wall 34. no longer need to be set. As a result, it is possible to eliminate the need for various operations for mounting the pressing surface, such as positioning, so that the amount of work required for the actual vehicle can be reduced.

In addition, as shown in FIG. 6, in the assembly structure 10 of the staircase passage according to the embodiment of the present invention, the uppermost step 24b of the staircase portion 24 is attached to the framework 12 via the upper bolting structure 60. In this state, the bolt hole 62 of the upper bolting structure 60 is covered by the floor material 76 of the upper room and the non-slip step 32 of the uppermost step 24b of the staircase portion 24. As shown in FIG. That is, after bolting in the upper bolting structure 60, the floor material 76 of the upstairs room is laid over the bolt holes 62, and the non-slip step 32 of the uppermost step 24b is attached from above. As a result, the bolt holes 62 of the upper bolt-fixing structure 60 can be concealed and invisible to passengers, thereby preventing the appearance of the stairway passage 86 from being spoiled.

7, the staircase assembly structure 10 according to the embodiment of the present invention has the lowermost step 24a of the staircase portion 24 attached to the framework 12 via the lower bolting structure 52. In this state, the bolt holes 54 of the lower bolting structure 52 are covered with the floor material 78 of the access platform 84 . That is, after bolting in the lower bolting structure 52 , the floor material 78 of the loading/unloading table 84 can be laid over the bolt holes 54 . As a result, the bolt holes 54 of the lower bolt-fixing structure 52 can also be hidden, and are not visually recognized by passengers.

Furthermore, as shown in FIGS. 8 and 9, the assembly structure 10 of the staircase passage according to the embodiment of the present invention has two panels 40 and 42 each having a surface 44a of a plate member 44 and a decorative sheet 46 attached to the surface 44a. A lower mounting bracket 70 and an upper mounting bracket 74 are attached to the rear surface 44b of the plate member 44 by welding or the like. Since the two panels 40 and 42 pre-assembled to such a state can be attached to the actual vehicle, the assembly time of the ascending/descending staircase passage 86 can be further reduced. Furthermore, with the panels 40 and 42 installed on the actual vehicle, the lower mounting bracket 70 and the upper mounting bracket 74 attached to the back surface 44b of the plate member 44 are directed toward the inside of the staircase passage 86 and the decorative sheet 46 is attached. It becomes invisible from the surface 44a side of the attached plate material 44. - 特許庁Therefore, it is possible to attach the two panels 40 and 42 via the lower bracket 70 and the upper bracket 74 without impairing the aesthetic appearance of the stairway passage 86 .

10: Assembled structure of ascending/descending stair passage 12: Framework 14: Partition column 14a: Upper end side 14b: Midway portion 14c: Lower end side 16: Divided portion 24: Stair portion 24a: Bottom step 24b: Top step, 26: Footboard, 28: Riser, 30: Floor material, 32: Non-slip step, 34: Side wall, 40: Outer panel, 42: Inner panel, 44: Plate material, 44a: Front surface, 44b: Back surface, 46 : decorative sheet, 52: lower bolting structure, 54: bolt hole, 60: upper bolting structure, 62: bolt hole, 70: lower mounting bracket, 74: upper mounting bracket, 76: floor material of upper floor room, 78 (78a, 78b): floor material of entrance/exit platform, 80: railroad car, 84: entrance/exit platform, 86: passageway for ascending/descending stairs

Claims (6)

In a railway vehicle having a passenger compartment whose floor height is different from that of an entrance board, an assembly structure of a staircase passage connecting between the entrance board and the passenger compartment,
a framework provided in the vehicle body;
a stair section in which treads and risers are alternately provided;
two panels forming opposing inner walls of the stairway passage;
a lower bolting structure for attaching the lowest step of the staircase to the framework; and an upper bolting structure for attaching the uppermost step of the staircase to the framework;
a lower fitting for connecting the lower portion of each of the two panels to the stepped portion; and an upper fitting for attaching the upper portion of each of the two panels to the framework. Assembled structure of the ascending/descending stair passage. The stair portion includes a floor material covering the tread and the riser, a non-slip step attached to the end of the tread from above the floor, and a side of the tread and the riser. a side wall;
2. The structure of claim 1, wherein said lower bracket connects the lower portion of each of said two panels to said side wall. The bolt holes of the upper bolting structure are covered by the floor material of the passenger compartment or the access platform and the anti-slip step of the top level when the top level is attached to the framework. 3. The assembly structure of the stairway passage according to claim 2. 4. The bolt hole of the lower bolting structure is covered with the floor material of the access board or the passenger compartment in a state where the lowest stage is attached to the framework. 2. Assembling structure of the ascending/descending stair passage according to item 1. The ascending/descending stair passage connects between the access platform and the guest room while curving in a plan view,
The framework includes a partition post erected near the center of the bend in a plan view,
The partition pillar has a three-division structure in which a middle portion covering at least a part of the height range in which the stepped portion is installed can be divided from the upper end side and the lower end side of the partition pillar via a dividing portion, 5. The assembly structure of the stairway passage according to any one of claims 1 to 4, wherein the divided portions are connected by bolts. Each of the two panels is configured by attaching a decorative sheet to the surface of a plate material,
6. The assembly structure of the staircase passage according to any one of claims 1 to 5, wherein the lower mounting bracket and the upper mounting bracket are attached to the rear surface of the plate member.

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