JP7101157B2 - Interior panel connection structure of the toilet unit of a railway vehicle - Google Patents

Description

The present invention relates to an interior panel connection structure of a toilet unit of a railroad vehicle in which an interior panel is divided and configured so as to be easy to assemble both inside and outside the vehicle.

The toilet unit of a railroad vehicle is a toilet room that is configured independently of the vehicle and is arranged in a nested manner inside the vehicle. This toilet unit often adopts an outwork method in which parts made of FRP material, which is divided into upper and lower parts, are completely assembled and then carried into the vehicle. In this case, the assembled toilet unit is not easy to carry in due to its high weight. In addition, it is necessary to provide a large carry-in entrance on the vehicle body side.

On the other hand, there is also known a conventional method of assembling the divided interior panels by sequentially carrying them into the vehicle and screwing them to the bones provided on the vehicle body side. This conventional method will be described.

FIG. 6 shows a joint structure of a conventional interior panel. A plurality of vehicle body members 101 are provided as bone receiving bones on the inner surface side of the vehicle body. Support metal fittings 102 are attached to these vehicle body members 101. The interior panel 100 is joined to the support metal fitting 102. A screw or blind rivet 103 is used for joining, and screwing or riveting is performed from the side opposite to the passenger compartment.

In such an interior structure, the interior panels 100 made of a lightweight composite material can be carried into the vehicle one by one to perform the work, so that the work load is reduced.

Further, according to the above-mentioned interior structure, since it can be assembled in the vehicle, it is not necessary to provide a large carry-in entrance on the vehicle body side. Such a technique is described in Patent Document 1.

Japanese Unexamined Patent Publication No. 2014-080191

However, in the conventional joint structure as shown in FIG. 6, since the screws or the blind rivet 103 are assembled in order, it is necessary to temporarily fix the joint structure and perform fine adjustment while checking the whole. I can't.

In addition, depending on other work conditions, it is not possible to assemble it outside the vehicle to some extent and then carry it inside the vehicle, so the degree of freedom in the assembly work is low.

Further, as the interior panel 100 becomes thinner for weight reduction, it becomes difficult to form a pilot hole for a screw or a blind rivet 103 only on one side of the face material, which requires skill.

Therefore, it is an object of the present invention to provide an interior panel connection structure for a toilet unit of a railway vehicle, which can be assembled both inside and outside the vehicle and can be easily fine-tuned for alignment.

In order to achieve the above object, the interior panel connection structure of the toilet unit of the railway vehicle of the present invention includes an interior panel in which a T-groove portion having a T-shaped cross section is provided along the edge on the outer surface side, a screw shaft, and the T. Each of the fastening body having a head slidably engaged with the groove portion and the interior panel in which a plurality of shaft passing portions through which the screw shaft is passed are formed and the shaft passing portion is adjacent to the fastening body by the fastening body. It is characterized by being provided with a connecting metal fitting to be fastened to the T-groove portion.

Further, in the interior panel connection structure of the toilet unit of the railway vehicle of the present invention, in addition to the above configuration, an alignment portion for holding the position of the screw shaft is formed in accordance with the shaft threading portion of the connection fitting. It is characterized by having a liner interposed between the T-groove portion and the connecting metal fitting.

As described above, according to the present invention, the T-groove portions of the interior panel are connected to each other via the fastener and the connecting metal fitting. Since it is only necessary to align the fasteners with respect to the connecting metal fittings, work efficiency can be improved. Further, since the head of the fastening body is slidably arranged with respect to the T-groove portion of the interior panel, the position can be freely changed until the fastening is completely fastened. This facilitates fine adjustment during assembly.

Further, according to the present invention, in addition to the above effects, the liner interposed between the T-groove portion and the connecting metal fitting is aligned to hold the screw shaft of the fastener in accordance with the shaft threading portion of the connecting metal fitting. The part is formed. As a result, the fastener can be aligned with the liner, which is relatively easier to handle than the connecting metal fitting due to the weight and the like, so that the positioning work of a plurality of bolts becomes easy.

It is a perspective view which shows the interior panel connection structure which concerns on embodiment of this invention. It is a cross-sectional view of the interior panel connection structure of FIG. It is a perspective view which showed the disassembled state of the interior panel connection structure of FIG. The connection process of the interior panel connection structure of FIG. 1 is shown, (a) is a reference panel installation process, (b) is an adjacent panel installation process, (c) is a bolt T-groove insertion process, and (d) is. It is a figure which showed the temporary arrangement process of a bolt, (e) is a connection metal fitting arrangement process, and (f) is a fastening process. It is a figure which shows the modification of the liner. It is a figure which shows the joint structure of the conventional interior panel.

Hereinafter, the interior panel connection structure of the toilet unit of the railway vehicle according to the embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing an interior panel connection structure 1 according to an embodiment of the present invention. Here, for convenience of explanation, a part of the configuration is broken and illustrated. Hereinafter, the interior panel connection structure 1 will be simply referred to as a connection structure 1.

The two interior panels 2 and 3 shown in the connected state in FIG. 1 adopt a structure in which a vinyl chloride foam material or a honeycomb core is sandwiched between face plates in order to reduce the weight. T-groove portions 4a and 5a are formed along the edges of the interior panels 2 and 3. In FIG. 1, since the periphery of the connection portion is enlarged and shown, only one end edge of the interior panels 2 and 3 appears, but a T-groove portion is formed at all the end edges that require connection. .. Such a structure is particularly useful when constructing a toilet unit for a railroad vehicle.

The T-groove portions 4a and 5a are formed on the outdoor side, and only the joints between the interior panels 2 and 3 appear on the indoor side. The head portion 6a of the bolt 6 (fastener) is slidably housed in the T-groove portions 4a and 5a, and the screw shaft 6b is arranged so as to project to the outdoor side. These bolts 6 are fastened to the connecting metal fittings 8 arranged so as to cover the T-groove portions 4a and 5a of the adjacent interior panels 2 and 3 together.

In the configuration according to the present embodiment, channel steel is used for the connecting metal fitting 8. A liner 10 is interposed between the connecting metal fitting 8 and the T-groove portions 4a and 5a in order to stabilize the fastening state. Each bolt 6 is arranged through the alignment hole 10a (alignment portion) formed in the liner 10 and through the shaft through hole 8a (shaft through portion) of the connecting metal fitting 8 (the alignment hole 10a will be described later). See FIG. 3).

In this way, the interior panels 2 and 3 are fixed to each other in a connected state via the bolts 6 housed in the respective T-groove portions 4a and 5a and the connecting metal fittings 8 fastened by these bolts 6. Next, this connection structure will be described from another angle.

FIG. 2 is a cross-sectional view of the interior panel connection structure 1.

As can be seen in FIG. 2, a part of the edge of the other interior panel 3 is connected so as to overlap the edge of one interior panel 2. Further, it can be seen that the T-groove portions 4a and 5a are integrally formed with the frame members 4 and 5 at the edges of the interior panels 2 and 3. In the present embodiment, the shapes of the edges of the adjacent interior panels 2 and 3 are asymmetrical. Specifically, from the edge of one of the interior panels 3, an overhanging portion 5b is formed so as to project to the outdoor side and fill the space formed between the T-groove portions 4a and 5a. Has been done.

That is, a structure is adopted in which the plate thickness in the vicinity of the edge is kept substantially constant so as not to reduce the strength of the frame materials 4 and 5, and the two are overlapped by utilizing the space between the T groove portions 4a and 5a. Has been done. If the positions of the outer surfaces of the overhanging portion 5b and the T-groove portions 4a and 5a are aligned, the connecting fitting 8 can be supported by the surface, so that the joining state of the connecting fitting 8 can be stabilized.

Further, the length L2 of the overhanging portion 5b is configured to be longer than the length L1 of the region that can be overlapped on the interior panel 2 side where the overhanging portion 5b is not formed. This length L1 is the length between the contact wall 4b on the side where the tip of the overhanging portion 5b can come into contact with the T-groove portion 4a formed so as to project to the outdoor side and the edge of the interior panel 2. That's right. As a result, when the adjacent interior panels 2 and 3 are butted against each other, the overhanging portion 5b on the outdoor side first abuts against the contact wall 4b of the interior panel 2 on the other side. Therefore, on the indoor side surface, it is possible to avoid collisions between the interior panels 2 and 3 of each other, and it is possible to prevent damage to the indoor side.

Further, as shown in FIG. 2, if the dimensions are set so that a gap is formed between the overhanging portion 5b and the contact wall 4b of the interior panel 2 of the other party when fastening and fixing. It is possible to absorb the error that occurs during installation.

In this case, for example, if at least one of the axial through holes 8a (described later with reference to FIG. 3) of the connecting metal fitting 8 is formed by a long hole extending in the horizontal direction, fine adjustment can be easily performed. Yes, the degree of freedom of installation work is improved. Subsequently, the assembly process will be described while showing the structure of the individual members by an exploded view.

FIG. 3 is a perspective view showing an exploded state of the interior panel connection structure 1. Further, FIG. 4 is a process diagram showing a connection process of the interior panel connection structure 1. 4A is a reference panel installation process, FIG. 4B is an adjacent panel installation process, FIG. 4C is a bolt 6 T-groove portion 4a and 5a loading process, and FIG. 4D is a temporary placement process of the bolt 6. (E) shows the connecting metal fitting 8 arrangement process, and (f) shows the fastening process.

From here, the assembly process will be described with reference to FIG. 4 with reference to the exploded view of FIG.

First, refer to FIG.

As described above, the edges of the adjacent interior panels 2 and 3 are asymmetrically configured so that one overlaps the other on the outdoor side. Aluminum extruded materials are often used for the frame materials 4 and 5 of the interior panels 2 and 3 having the T-groove portions 4a and 5a for reasons such as weight reduction and ease of processing. Therefore, an even space is formed in the T-groove portions 4a and 5a, and the bolt 6 can be easily temporarily accommodated by dropping the bolt 6 from the upper end as shown in FIG.

Now refer to FIG.

In FIG. 4A, the side on which the overhang is not formed is selected as the reference interior panel 2. However, this is only an example, and conversely, the interior panel 3 on which the overhanging portion 5b is formed may be installed first. Here, it is desirable to first install an interior panel having a bent shape. This is because the more stable the first interior panel, which has almost no support, the more stable the work of additionally installing the interior panels to be continuously installed. It suffices to have a bent shape at at least one place. This is true whether the installation work is done inside or outside the vehicle.

By the way, in the case of installation inside the vehicle, the degree of freedom of installation work is not as high as outside the vehicle. That is, in a narrow space inside a vehicle, it is necessary to proceed with the work while securing a space so as not to interfere with the subsequent work. Therefore, it is easier to assemble from the wall side, which does not become an obstacle.

Due to these circumstances, in the initial installation of FIG. 4A, it is desirable to select an interior panel that is arranged on the wall side and has a bent shape.

In the process of FIG. 4B, adjacent interior panels 2 and 3 are installed so as to match the indoor surfaces. Then, in the process of FIG. 4C, the head portion 6a of the bolt 6 is dropped into each of the T-groove portions 4a and 5a. In this state, the bolt 6 is not yet positioned in the height direction.

See FIG. 3 again.

The liner 10 is used to position the bolt 6 dropped below the T-groove portions 4a and 5a in the height direction. The liner 10 is formed with an alignment hole 10a that matches the axial through hole 8a of the connecting metal fitting 8. As a result, if the screw shaft 6b of the bolt 6 is passed through the alignment hole 10a of the liner 10 in advance, it becomes easy to arrange the connecting metal fitting 8 later.

In the case of the configuration according to the present embodiment, since the liner 10 is individually provided for each T groove portion 4a and 5a, it is easy to handle, and one screw shaft 6b is passed through the alignment hole 10a in order. If this is the case, there will be almost no work load, and one worker can work. If it is installed without positioning with respect to the connecting metal fitting 8, it is difficult for only one operator. In particular, this difference is remarkable when the work space is limited, such as when assembled in a vehicle.

Returning to FIG. 4D, the height of the bolt 6 is positioned by the liner 10. In this state, if a part of the liner 10 is pressed, the bolt 6 will not come off and fall.
Therefore, it is possible to finely adjust the positions of the interior panels 2 and 3 while supporting the respective liners 10. In this state, it is easy to arrange the connecting metal fitting 8 as shown in FIG. 4 (e). Finally, the connection is completed by fastening the respective bolts 6 (FIG. 4 (f)).

Although the assembly procedure has been described in the order of FIGS. 4A to 4F, according to this configuration, all the bolts are pulled out along the T-groove portions 4a and 5a even when disassembling. It is also possible to collect 6 at a time, which improves work efficiency.

FIG. 5 is a diagram showing a modified example of the liner 10.

In FIG. 5, a part of the upper part of the liner 10 is enlarged and shown. The dotted line in the figure is the screw shaft 6b of the bolt 6. As described above, the structure for aligning the bolt 6 may be configured by the notch 11a in addition to the alignment hole 10a as shown in FIG. Further, the configuration with such a notch 11a (alignment portion) does not need to be aligned in the same direction in all the alignment portions. For example, if it is formed alternately on the left and right, it can be prevented from coming off in one direction.

Further, by combining the alignment hole 10a and the notch 11a, it is possible to secure the stability by the alignment hole 10a and reduce the work load by the notch 11a.

In the configuration according to the present embodiment, a configuration in which the interior panels are connected in the horizontal direction is shown as an example, but when connecting in the height direction, the position is such that the liner having the notch is hooked from above. It can be said that it is more suitable because it can be matched.

The configuration as described above is an example of the present invention, and includes the following modifications.

In the above embodiment, a configuration in which adjacent interior panels 2 and 3 are connected so as to form the same plane is shown as an example. However, a configuration using a connection structure so as to straddle the bent portion may be used. In this case, a curved or bent connecting metal fitting 8 is used.

Further, in the above embodiment, a configuration in which the liner 10 is individually provided for each of the T-groove portions 4a and 5a of the adjacent interior panels 2 and 3 is shown as an example. However, a single liner 10 may be configured so as to cover both the two T-groove portions 4a and 5a.

Further, in the above embodiment, a configuration in which channel steel is used as the connecting metal fitting 8 is shown as an example. The use of channel steel in this way has the advantage of facilitating connection with laterally arranged reinforcing members. However, in places where cross members are not required, shapes other than channel steel may be used. For example, a flat plate, a curved plate, a bent plate, or an angle material may be used.

Further, in the above embodiment, a configuration in which a bolt 6 capable of accommodating the head portion 6a in the T-groove portions 4a and 5a as a fastening body for fastening the T-groove portions 4a and 5a and the connecting metal fitting 8 is shown as an example. rice field. However, a combination of the T slot nut and the stud bolt 6 may be used as long as the structure is such that the inside of the T groove portions 4a and 5a can be slid in an engaged state. Further, the head portion 6a may be a T-slot bolt 6 in which the head portion 6a is not formed in a hexagonal shape.

Further, in the above-described embodiment, in the assembly process, a process of inserting the bolt 6 into the T-groove portions 4a and 5a and then temporarily positioning the bolt 6 with respect to the liner 10 in the height direction has been described. However, if the screw shaft 6b of the bolt 6 can be stably held with respect to the liner 10, the required number of bolts 6 are first arranged on the liner 10, and then the required number of bolts 6 are sequentially arranged in the T-groove portions 4a and 5a. The procedure may be such that the head 6a side of the bolt 6 is slid. According to this method, even when the T-groove portions 4a and 5a are formed in the horizontal direction, they can be fed in order together with the liner 10, so that the work efficiency is improved.

Further, in the above embodiment, a configuration in which the overhanging portion 5b is formed only on one side of the adjacent interior panels 2 and 3 is shown as an example. However, the present invention is not limited to this, and if the configuration is such that a gap is not formed between the indoor side and the outdoor side, the edge of the adjacent interior panel is connected to at least one outdoor side of the adjacent interior panels. It may be a configuration in which an overhanging portion that overlaps with the above is formed. Here, the term "at least one" includes not only a configuration in which an overhanging portion is provided on only one side in the entire area in the height direction. For example, in a specific region in the height direction, a structure may be used in which the sides provided with the overhanging portions are interchanged. However, as shown in the embodiment, the gap between the adjacent interior panels 2 and 3 is covered by the connecting metal fitting 8 arranged so as to straddle the outdoor side, so that the overhanging portion 5b is an essential structure. do not have. As a configuration that can be substituted for the overhanging portion 5b, a liner that can cover the gap between the interior panels and a connecting metal fitting having a structure that can project a part facing each other between the adjacent T-groove portions to fill the step. But it doesn't matter.

Further, in the above embodiment, a connection structure between the side interior panels 2 and 3 installed vertically is shown as an example. However, it can also be applied to structures that connect in the horizontal direction, such as connections to floor members and ceiling members, and structures that connect in orthogonal directions.

Further, in the above embodiment, the configuration of the shaft through hole 8a formed by the through hole is shown as an example of the shaft through portion through which the screw shaft 6b of the bolt 6 formed in the connecting metal fitting 8 is passed. However, it does not have to be a through hole as long as it can be stably fastened. For example, when an angle material or the like is used as the connecting metal fitting 8, the notch 11a cut from the side can be used as the shaft through portion 8a.

Further, in the above embodiment, the configuration in which the T-groove portions 4a and 5a are integrally formed with the frame material at the end edges of the interior panels 2 and 3 is shown as an example. However, a T-groove portion formed of a member different from the frame material may be arranged at the edge of the interior panel. Further, the T-groove portion may be arranged only in a necessary range, not in the entire edge.

In the interior panel connection structure of the toilet unit of the railway vehicle of the present invention, since the adjacent interior panels are connected via the bolts arranged in the T-groove and the connecting metal fittings, the degree of freedom in design with respect to the extending direction of the T-groove is high. This makes it versatile and can be used for various panel installations. Since it is possible to improve work efficiency, it is particularly useful for temporary structures and the like.

1 Interior panel connection structure 2, 3 Interior panel 4, 5 Frame material 4a, 5a T groove 4b Contact wall 5b Overhang 6 Bolt (fastener)
6a Head 6b Screw shaft 8 Connecting bracket 8a Shaft through hole (shaft through part)
10, 11 Liner 10a Alignment hole (alignment part)
11a Notch (alignment part)
100 Interior panel 101 Body member 102 Supporting bracket 103 Blind rivet

Claims (2)

An interior panel in which a T-groove portion having a T-shaped cross section is provided along the edge on the outer surface side, and an interior panel.
A fastener having a head that slidably engages with the screw shaft and the T-groove,
A railway characterized in that a plurality of shaft threading portions through which the screw shaft is passed are formed, and the fastening body is provided with a connecting metal fitting to be fastened to each of the T-groove portions of the interior panel adjacent to the shaft threading portion. Interior panel connection structure of the toilet unit of the vehicle. A alignment portion for holding the position of the screw shaft is formed in accordance with the shaft threading portion of the connecting bracket, and a liner is provided between the T-groove portion and the connecting bracket. The interior panel connection structure of the toilet unit of the railway vehicle according to claim 1.

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