JP2024002222A - Sliding door for railway vehicle - Google Patents

Abstract

To provide a sliding door with a simple assembling configuration.SOLUTION: In a sliding door 100 for a railway vehicle having a surface plate 105 heled by a vertical bone member 110 and a lateral bone member 120, bone members include the vertical bone member 110 and the lateral bone member 120 formed by extruded materials. In the vertical bone member 110, a groove part 107 in which a nut 106 with a female screw part is inserted such that the nut 106 can move inside, is provided along a longitudinal direction. The groove part 107 is formed to communicate with at least one side of the extruded material in the longitudinal direction. The vertical bone member 110 and the lateral bone member 120 are fixed to form a structure 150 by inserting a bolt 104 through a corner metal fitting 115 fixed by the lateral bone member 120 and fastening the bolt with respect to the nut 106 inserted in the vertical bone member 110. Thus, the surface plate 105 is fixed to the structure 150.SELECTED DRAWING: Figure 2

Description

The present invention relates to technology in the structure of sliding doors for railway vehicles.

A railway vehicle is equipped with a plurality of doors, and the doors attached to the gable structure, the passenger compartment partition, and the doors attached to the side structures often have a sliding door structure. These sliding doors are often made as special products to match the shape of the vehicle. The structure is often assembled by welding stainless steel or aluminum alloy as a frame.

However, when making a sliding door with a welded structure, distortion due to the welding occurs, causing the sliding door to undulate, warp, twist, etc., and the flatness of the sliding door may fall outside the tolerance, so it is difficult to meet the required accuracy. This requires advanced welding and assembly techniques, and is time-consuming, so there is a need for a simpler manufacturing method.

Patent Document 1 discloses a technology related to a door leaf for a railway vehicle, a fastening structure, and a method for manufacturing a door leaf for a railway vehicle. A door leaf for a railway vehicle includes a tapping screw that penetrates the vertical frame and is screwed into a prepared hole provided in the horizontal frame while tapping, and fastens the vertical frame and the horizontal frame. The wall forming the pilot hole in the horizontal frame has a contact area that contacts the self-tapping screw and a non-contact area that does not come into contact with the self-tapping screw.

By adopting such a structure, the tightening torque when tightening the tapping screws can be reduced, and the vertical frame and the horizontal frame can be fastened using the tapping screws, so railway construction can be done without welding. A vehicle door leaf can be easily manufactured.

Patent Document 2 discloses a technology related to a door leaf for a railway vehicle and a method for manufacturing the door leaf for a railway vehicle. A door leaf for a railway vehicle has a vertical frame and a horizontal frame that are arranged perpendicular to each other, and the vertical frame and the horizontal frame are connected by relative movement only in the fitting direction, and mutual movement is restricted in any direction other than the fitting direction. and two surface plates that sandwich the connecting portion from both sides in the fitting direction. By adopting such a structure, the frame bodies that constitute the frame of the door leaf can be connected to each other without using screws or welding, and the door leaf can be manufactured easily.

Japanese Patent Application Publication No. 2021-178616 JP 2021-123297 Publication

However, when manufacturing sliding doors for railway vehicles using the techniques of Patent Document 1 and Patent Document 2, manufacturing costs are high because both require precision in manufacturing the vertical frame and the horizontal frame. In the technique of Patent Document 1, it is necessary to provide a tapping screw to fasten the vertical frame and the horizontal frame, but since the tapping screw is screwed into the horizontal frame into the pilot hole and the tapped wall, the pilot hole and the tapped screw are screwed into the horizontal frame. High precision is required for the position of walls and the positions of through holes provided in vertical frames.

Further, in the technique of Patent Document 2, the vertical frame and the horizontal frame need to be provided with a connection portion using fitting. Therefore, in either Patent Document 1 or Patent Document 2, high component precision is required to form this connection portion, and fitting is required during assembly, so it also takes time to assemble. In other words, the cost of manufacturing sliding doors increases. Therefore, there has been a desire for a sliding door that has a simpler structure and can improve dimensional accuracy.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve these problems and provide a sliding door that is easy to assemble and is therefore inexpensive.

In order to achieve the above object, a sliding door for a railway vehicle according to one aspect of the present invention has the following features.

(1) In a sliding door for a railway vehicle having a frame member as a structure and a surface plate material held by the frame member,
The bone member includes a vertical bone member and a horizontal bone member made of an extruded section,
The vertical rib member is provided with a groove along the longitudinal direction into which a nut member provided with a female screw portion is inserted and in which the nut member is movable;
The groove portion is formed to communicate in the longitudinal direction of at least one side of the extruded shape,
By inserting a bolt through a connecting fitting fixed to the horizontal bone member and fastening the nut member inserted into the vertical bone member, the vertical bone member and the horizontal bone member are fixed. form a structure,
the surface plate material is fixed to the structure;
It is characterized by

The aspect described in (1) above makes it possible to provide a sliding door for a railway vehicle that is easier to assemble. This involves inserting a nut member into a groove provided in a vertical frame member using an extruded section, inserting a bolt through a connecting fitting fixed to a horizontal frame member, and then inserting the bolt into a groove provided in a vertical frame member. By screwing into the female threads, the vertical and horizontal bone members are fixed and form a structure, so even after temporarily assembling the structure, fine positional adjustments of the vertical and horizontal bone members are possible. becomes.

Furthermore, since the surface plate material is fixed to this structure, it is possible to complete the sliding door for a railway vehicle by tightening bolts. When a structure using welding is adopted for a sliding door, there is a problem in that the distortion caused by the welding deteriorates various dimensional accuracy such as the flatness of the sliding door, the installation of the door tip, and the difference in diagonal dimensions of the sliding door. On the other hand, when a sliding door is provided with a tapping screw or a connecting portion with a fitting structure as shown in the above problem, the manufacturing cost of the sliding door increases. However, by adopting a bolted structure using extruded shapes, problems caused by distortion due to welding are less likely to occur, and workability when assembling sliding doors can be improved, resulting in This leads to a reduction in assembly man-hours.

In addition, by using extruded shapes with grooves in the vertical and horizontal bone members, and adopting a structure in which the nut member is inserted into the groove and moved, the position where the horizontal bone member is fixed to the vertical bone member can be arbitrarily set. Since it becomes possible to change the structure and make fine adjustments easily, it is possible to improve the work efficiency when assembling the sliding door frame and shorten the assembly time. In other words, by making it possible to improve the assembly accuracy of the sliding door, it contributes to improving work efficiency inside the vehicle, which ultimately leads to cost reduction.

(2) In the railway vehicle sliding door described in (1),
The groove portions of the vertical rib member and the horizontal rib member include at least
a bone member contact surface that is a surface where the horizontal bone member contacts the vertical bone member;
The vertical rib members and the horizontal rib members are provided on a surface plate contacting surface that is a surface in contact with the surface plate material;
is preferred.

According to the aspect described in (2) above, it becomes easy to attach the surface plate material to the structure made of the vertical rib members and the horizontal rib members, and it becomes easy to adjust the position of the horizontal rib members with respect to the vertical rib members. For this reason, for example, when installing a window in a sliding door, it is easy to accommodate different design specifications such as adding separate vertical and horizontal rib members, making it easier to manufacture the sliding door, and as a result, reducing assembly man-hours. This will lead to reduction.

(3) In the railway vehicle sliding door described in (2),
The first connection fitting fastened to the first horizontal bone member provided between the vertical bone members is located at a position facing the second connection fitting fastened to the second horizontal bone member. that it is provided,
is preferred.

According to the aspect described in (3) above, the first connecting fitting and the second connecting fitting are provided at opposing positions, so that the square shape formed by the opposing horizontal and vertical rib members is formed. structure is formed, making it possible to ensure the strength of the sliding door.

(4) In the railway vehicle sliding door described in either (2) or (3),
The groove portion is provided on the outer peripheral surface of the structure,
Hanging equipment is attached;
is preferred.

According to the aspect described in (4) above, the groove portion is provided on the outer peripheral surface of the structure, which facilitates the work when fixing the door stopper, door wheel, etc., which leads to a reduction in the number of assembly steps.

Furthermore, in order to achieve the above object, a railway vehicle according to another aspect of the present invention has the following features.

(5) In a railway vehicle using a sliding door for a railway vehicle having a frame member as a structure and a surface plate material held by the frame member,
The bone member includes a longitudinal bone member and a transverse bone member,
A groove portion in which a nut member provided with a female screw portion is inserted into which the nut member can move is provided along the longitudinal direction in the vertical rib member;
By inserting a bolt through a connecting fitting fixed to the horizontal bone member and fastening the nut member inserted into the vertical bone member, the vertical bone member and the horizontal bone member are fixed. form a structure,
the sliding door for a railway vehicle having the surface plate material fixed to the structure;
It is characterized by

According to the aspect described in (5) above, by adopting a sliding door for a railway vehicle as shown in (1) in a railway vehicle, the assembly work time of the sliding door is shortened in order to simplify the work in manufacturing the railway vehicle. The sliding door can be easily assembled into a vehicle since the sliding door can be easily assembled and the accuracy of the assembly can be improved. As a result, it is possible to contribute to cost reduction.

FIG. 1 is a perspective view of a railway vehicle according to a first embodiment. It is a front view of the sliding door for railroad vehicles of 1st Embodiment. FIG. 3 is an enlarged view of a corner of the structure in the first embodiment. FIG. 3 is an enlarged view of the middle part of the structure in the first embodiment. FIG. 3 is a cross-sectional view of the transverse bone member of the first embodiment. It is an enlarged view of the attachment part of the suspension wheel of 1st Embodiment. FIG. 3 is an enlarged view of the hanging wheel portion of the first embodiment. It is a front view of the sliding door for railroad vehicles of 2nd Embodiment. It is a sectional view of a vertical bone member or a horizontal bone member of a 2nd embodiment. FIG. 7 is another cross-sectional view of the longitudinal or transverse rib member of the second embodiment.

First, a first embodiment of the present invention will be described using the drawings. FIG. 1 shows a perspective view of a railway vehicle according to a first embodiment. The railway vehicle 10 includes a side structure 12, a roof structure 13, an underframe 14, an end structure 16, a bogie (not shown), etc., and is provided with a cabin partition 15 and the like inside the vehicle. Among these, the sliding door structure is adopted for the side entrance/exit sliding door 100A, the guest room partition sliding door 100B, and the end sliding door (not shown). In the first embodiment, an example in which the present invention is applied to a guest room partition sliding door 100B will be described, but in the first embodiment, the sliding door 100 will be referred to without any particular distinction. Further, in the first embodiment, the railway vehicle 10 is used as an example of the leading vehicle having a passenger compartment partition, but the present invention is also applicable to a vehicle without a passenger compartment partition or an intermediate vehicle.

FIG. 2 shows a front view of a sliding door for a railway vehicle. The sliding door 100 of the railway vehicle 10 according to the first embodiment has a structure in which a surface plate material 105 is attached to the surface of a structure 150 composed of a vertical frame member 110 and a horizontal frame member 120. The vertical rib member 110 and the horizontal rib member 120 are bone members, and each uses an extruded shape having a side of 20 mm. The extruded shape is made of aluminum alloy, uses a generally available aluminum frame, and has a groove 107 in the longitudinal direction, which will be described later. Although the vertical rib members 110 and the horizontal rib members 120 are made of materials with the same cross-section, this does not preclude the use of members with different cross-sectional shapes.

Here, for convenience of explanation, the left side of the vertical rib member 110 in the paper of FIG. 2 is referred to as the first vertical rib member 111, and the right side of the page is referred to as the second vertical rib member 112, but unless otherwise specified, the vertical rib member 110 is referred to. In this case, it indicates the first longitudinal rib member 111 or the second longitudinal rib member 112, or both. In addition, among the horizontal bone members 120, from the upper side of the paper in FIG. When the bone member 120 is written, it indicates one or all of them.

A horizontal rib member 120 disposed between the first vertical rib member 111 and the second vertical rib member 112 is fixed to the first vertical rib member 111 and the second vertical rib member 112 using square metal fittings 115, which will be described later, to form a structure 150. FIG. 3 shows an enlarged view of the corner of the structure. This corresponds to an enlarged view of part A in FIG. FIG. 4 shows an enlarged view of the middle part of the structure. This corresponds to an enlarged view of part B in FIG. FIG. 5 shows a cross-sectional view of the transverse bone member. This corresponds to the CC cross section in FIG. As shown in FIGS. 3 and 4, the horizontal rib member 120 is fixed to the vertical rib member 110 using a square metal fitting 115, and the square metal fitting 115 has a nut 106 passed through a groove 107 as shown in FIG. Then, it is fixed by tightening the bolt 104.

As shown in FIG. 5, the groove portion 107 formed in the vertical rib member 110 or the horizontal rib member 120 has a cross section in which slope portions 107B that widen outward from both ends of the bottom portion 107A are connected, and the slope portion 107B is It has a dovetail-like shape with a pair of protrusions 107C that respectively protrude inward from both upper ends, and is formed along the longitudinal direction of the vertical rib member 110 or the horizontal rib member 120. The pair of protrusions 107C function as locking portions, forming a gap between the opposing tips through which the bolt 104 can be inserted, and restricting movement of the nut 106 in the cross-sectional direction of the bone member.

The nut 106 inserted into the groove 107 has a trapezoidal cross section that is the same shape as the groove 107, and has a female thread formed in the center thereof. Therefore, the nut 106 can freely move inside the groove 107 along the longitudinal direction of the vertical rib member 110 or the horizontal rib member 120. By moving this nut 106 to an appropriate position and tightening the bolt 104, the square fitting 115 and the protrusion 107C of the vertical frame member 110 or the horizontal frame member 120 are sandwiched, and as a result, the horizontal frame member 120 is vertically Bone member 110 is secured.

Here, the method of connecting the vertical rib members 110 and the horizontal rib members 120 will be explained in more detail. As shown in FIG. 3, the first horizontal bone member 121 is arranged so that its end surface abuts the bone member contacting surface 110a of the first vertical bone member 111, and is fixed by a square metal fitting 115. As shown in FIG. 3, the square metal fitting 115 has a horizontal plate part 115A and a vertical plate part 115B whose outer surfaces are perpendicular to each other and whose ends are connected to each other, and the inner surfaces of the horizontal plate part 115A and the vertical plate part 115B are connected and intersected. The connecting fitting has a substantially right isosceles triangular shape when viewed from the front and includes a reinforcing plate 115C that maintains the angle. As shown in FIG. 3, one through hole for passing the bolt 104 is provided in each of the surfaces that contact the bone member contact surface 110a and the inner surface 120a.

Therefore, in FIG. 3, the inner surface 120a of the horizontal bone member 120 and the outer surface of the horizontal plate portion 115A of the square metal fitting 115 are arranged so as to be in parallel contact with each other, and the bone member contacting surface 110a of the vertical bone member 110 and the outer surface of the horizontal plate portion 115A of the square metal fitting 115 are arranged so as to be in parallel contact with each other. It is arranged so that the outer surface of the vertical plate portion 115B is in parallel contact with the outer surface. Then, the vertical rib member 110 and the horizontal rib member 120 are connected by screwing the bolt 104 into the female screw portion of the nut 106.

Similarly, as shown in FIG. 4, the end surface of the second horizontal bone member 122 is arranged so as to abut against the bone member contacting surface 110a of the second vertical bone member 112. At this time, the square metal fitting 115 is held so as to be in contact with the bone member contacting surface 110a of the second vertical rib member 112 and the inner surface 120a of the second horizontal rib member 122.

In this way, while the first vertical rib member 111 and the second vertical rib member 112 are arranged, the first horizontal rib member 121 to the fourth horizontal rib member 124 are arranged and connected with the square metal fittings 115. is the structure 150. A hanging wheel 130 and a door rubber 140 are fixed to the outer circumferential surface 100a. Further, as shown in FIG. 2, a surface plate 105 is fixed to a surface plate contacting surface 150a which is the front or back surface of the structure 150. The surface plate material 105 may be fixed using a nut 106 inserted into the front side of the structure 150 in FIG. 2, or may be fixed to the surface of the structure 150 using double-sided tape or the like.

FIG. 6 shows an enlarged view of the attachment part of the hanging wheel. FIG. 3 is an enlarged view of part D in FIG. 2. FIG. FIG. 7 shows an enlarged view of the hanging wheel portion. A side view of FIG. 6 shows how it is attached to the passenger compartment partition 15. Since the sliding door 100 employs a hanging sliding door structure, two hanging wheels 130 are attached to the upper surface of the structure 150. As shown in FIG. 6, the structure is such that rollers 131 move on the rails 20 shown in FIG. 7, and the sliding door 100 is supported by the hanging wheels 130. The rail 20 is fixed to the cabin partition 15 and has a long shape in the width direction of the railway vehicle 10 (that is, in the direction of the sleepers), and the sliding door 100 is guided by the rail 20 and moves in the width direction of the vehicle. That is, the sliding door 100 is opened and closed while being guided by the rail 20.

The suspension wheel 130 is attached to the upper surface of the structure 150 using bolts 135. The first transverse bone member 121 is also provided with a groove 107 in the upper part, and a nut 106 is inserted therein, so that when the bolt 135 is fastened to this nut 106, the structure 150 is Hanging wheel 130 is fixed. The hanging wheel 130 holds the rail 20 between rollers 131 and lower rollers 132, thereby making the sliding door 100 movable.

Further, as shown in FIG. 2, a door end rubber 140 is attached to the side surface of the structure 150. This door end rubber 140 also has a nut 106 inserted into a groove 107 provided on the side surface of the second vertical frame member 112, and when this nut 106 and a bolt (not shown) are fastened, it can be attached to the structure 150. The door end rubber 140 is fixed. In addition, although not shown, it is also possible to attach a handle to the sliding door 100 as necessary.

Since the sliding door 100 for a railway vehicle according to the present embodiment has the above-mentioned configuration, it has the following functions and effects.

First, an advantage is that it is possible to provide the sliding door 100 with a structure that is easy to assemble. This is a sliding door 100 for a railway vehicle that has a frame member as a structure and a surface plate member 105 held by a vertical frame member 110 and a horizontal frame member 120. lateral bone member 120. A groove 107 is provided along the longitudinal direction of the vertical frame member 110, into which a nut member (nut 106) equipped with a female thread is inserted and the nut 106 can move inside. It is formed to communicate in the longitudinal direction of at least one side. Then, by inserting the bolt 104 through the connecting fitting (square fitting 115) fixed to the horizontal bone member 120 and fastening the nut 106 inserted into the vertical bone member 110, the vertical bone member 110 and the horizontal bone This is because the member 120 is fixed to form the structure 150, and the surface plate material 105 is fixed to the structure 150.

That is, a structure 150 in which a vertical frame member 110 and a horizontal frame member 120 made of extruded shapes are fastened with bolts 104 and nuts 106 using square fittings 115, and a surface plate material 105 etc. are attached to this structure 150. The sliding door 100 is configured with the following. As mentioned above, sliding doors that employ a welded structure are subject to distortion due to welding, and it takes time and skill to remove the distortion. Additionally, it is difficult to make adjustments inside the railway vehicle, requiring work such as removing the sliding door, adjusting it externally, and then reassembling it.

However, with the sliding door 100 of the first embodiment, it is possible to improve the shape accuracy by using extruded shapes for the vertical frame members 110 and the horizontal frame members 120, and also by using the square metal fittings 115 without using welding. Since the fastening structure is adopted, the flatness of the surface plate material 105 can be increased when the surface plate material 105 is assembled. Furthermore, the diagonal dimensions of the sliding door 100 can be improved. By adopting such a configuration for the sliding door 100, it is possible to simplify the assembly work of the sliding door 100 and improve the dimensional accuracy. Since the assembly can be performed more easily than the above, it is possible to shorten the assembly time of the sliding door 100 as a result. Moreover, since it can be smoothly assembled into the railway vehicle 10, it can contribute to cost reduction.

Further, a hanging wheel 130, a door rubber 140, etc. are fixed to the outer peripheral surface 100a of the structure 150, and a groove 107 is also formed on the outer peripheral surface 100a. Since the sliding door 100 is fixed by using the sliding door 100, it is easy to make fine adjustments after the sliding door 100 is brought into the railway vehicle 10. Therefore, after the sliding door 100 is attached to the side structure 12, passenger compartment partition 15, or end structure 16 of the railway vehicle 10, it is possible to finely adjust the position of the attached parts such as the hanging wheel 130 and the door end rubber 140 by matching the actual parts. It is.

Further, the groove portions 107 of the vertical bone members 110 and the horizontal bone members 120 have at least a bone member contact surface 110a, which is a surface where the horizontal bone members 120 are in contact with the vertical bone members 110, and is provided on the surface plate contacting surface 150a, which is the surface in contact with the surface plate 105, so that it becomes easy to loosen the bolts 104 and adjust the horizontal frame member 120 to an arbitrary height. Moreover, it is possible to attach the surface plate material 105 to the surface plate material contacting surface 150a by a method such as screwing or gluing.

Further, the first square metal fitting 115 fastened to the first horizontal bone member (first horizontal bone member 121) provided between the vertical bone members 110 is connected to the second horizontal bone member (second horizontal bone member 122). ), so that the first vertical rib member 111 and the second vertical rib member 112, and the first horizontal rib member 121 and the second horizontal rib member 122 Corner fittings 115 will be placed at the four corners of the square space surrounded by. In other words, the first vertical rib member 111, the second vertical rib member 112, the first horizontal rib member 121, and the second horizontal rib member 122 are connected to the square metal fittings 115 to form a structure and serve as a portion responsible for strength. Become. Moreover, the strength can be further increased by pasting the surface plate material 105 on the surface plate material contact surface 150a in this area.

In any case where the sliding door 100 is provided in the passenger compartment partition 15, the side structure 12, or the end structure 16, it is assumed that passengers will rest their weight on it, so it requires a certain strength, but such a structure is adopted. This makes it possible to ensure its strength.

Next, a second embodiment of the present invention will be described. Note that the second embodiment is described with the same reference numerals assigned to parts common to the first embodiment. Further, in order to distinguish it from the first embodiment, it will be described as a sliding door 100C, but similarly to the first embodiment, it can be applied to any of the side entrance/exit sliding door 100A, the guest room partition sliding door 100B, and the end sliding door (not shown).

FIG. 8 shows a front view of a sliding door for a railway vehicle according to the second embodiment. A window member 160 is provided in the sliding door 100C, and a third vertical frame member 113 and a fourth vertical frame member 114 are arranged on the left and right sides of the window member 160. The window member 160 is held by a third vertical rib member 113 and a fourth vertical rib member 114 arranged on the left and right sides.

The sliding door 100C of the second embodiment differs from the sliding door 100 of the first embodiment in that it includes a window member 160, and a third vertical rib member 113 and a fourth vertical rib member 114 are arranged on the left and right sides of the window member 160. But it's different. Such a difference in shape can be easily accommodated since the structure 150 is constructed using the vertical rib members 110 and the horizontal rib members 120. Furthermore, the window member 160 can be attached by adding the third vertical frame member 113 and the fourth vertical frame member 114, and its position can be easily adjusted. Therefore, there is an advantage that adjustment work in the assembly process of the sliding door 100C becomes easier to perform.

FIG. 9 shows a cross-sectional view of the longitudinal or transverse bone member. FIG. 10 shows another cross-sectional view of the longitudinal or transverse bone member. The vertical rib members 110 and the horizontal rib members 120 used in the structure 150 do not need to be extruded shapes with grooves 107 on four sides as shown in FIG. An extruded shape member having two or three grooves 107 as shown in FIG. 1 may also be used. In some cases, it is preferable to close the groove 107 for the sake of appearance or to prevent water or dirt from accumulating, but since it is not necessary to provide the groove 107 on a surface where it is known that it will not be used, the groove 107 is closed as shown in FIGS. It is also possible to appropriately select the vertical rib member 110 and the horizontal rib member 120 that have a cross section with a surface that does not have 107.

Although the sliding door 100 and the sliding door 100C used in the railway vehicle 10 according to the present invention have been described above, the present invention is not limited thereto, and various changes can be made without departing from the spirit thereof. For example, in the first embodiment and the second embodiment, similar extruded shapes are used, but this does not preclude the use of extruded shapes with other cross-sectional shapes.

100, 100C Sliding door 110 Vertical rib member 111 First vertical rib member 112 Second vertical rib member 113 Third vertical rib member 114 Fourth vertical rib member 120 Horizontal rib member 121 First horizontal rib member 122 Second horizontal rib member 150 Structure body

Claims (5)

A sliding door for a railway vehicle having a frame member and a surface plate material held by the frame member,
The bone member includes a vertical bone member and a horizontal bone member made of an extruded section,
The vertical rib member is provided with a groove along the longitudinal direction into which a nut member provided with a female screw portion is inserted and in which the nut member is movable;
The groove portion is formed to communicate in the longitudinal direction of at least one side of the extruded shape member,
By inserting a bolt through a connecting fitting fixed to the horizontal bone member and fastening the nut member inserted into the vertical bone member, the vertical bone member and the horizontal bone member are fixed. form a body,
the surface plate material is fixed to the structure;
A sliding door for railway vehicles featuring: In the railway vehicle sliding door according to claim 1,
The groove portions of the vertical rib member and the horizontal rib member include at least
a bone member contact surface that is a surface where the horizontal bone member contacts the vertical bone member;
The vertical rib members and the horizontal rib members are provided on a surface board contacting surface that is a surface in contact with the surface board material;
A sliding door for railway vehicles featuring: In the railway vehicle sliding door according to claim 2,
The first connection fitting fastened to the first horizontal bone member provided between the vertical bone members is located at a position facing the second connection fitting fastened to the second horizontal bone member. that it is provided,
A sliding door for railway vehicles featuring: In the railway vehicle sliding door according to claim 2 or 3,
The groove portion is provided on the outer peripheral surface of the structure,
Hanging equipment is attached;
A sliding door for railway vehicles featuring: In a railway vehicle using a sliding door for a railway vehicle having a frame member and a surface plate material held by the frame member,
The bone member includes a longitudinal bone member and a transverse bone member,
A groove portion in which a nut member provided with a female screw portion is inserted into which the nut member can move is provided along the longitudinal direction in the vertical rib member;
By inserting a bolt through a connecting fitting fixed to the horizontal bone member and fastening the nut member inserted into the vertical bone member, the vertical bone member and the horizontal bone member are fixed. form a body,
the sliding door for a railway vehicle having the surface plate material fixed to the structure;
A railway vehicle featuring

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