Fastening seat structure of interior object

Abstract

To provide a fastening seat structure which maintains smoothness of an underframe upper surface without an increase in weight nor making the center of gravity of a vehicle body high, and can adjust a fastening position.SOLUTION: In a fastening seat structure 1, a mounting part 2 for mounting an internal object is arranged on a lower side of an upper surface plate 8a of an underframe. An operation part 4 is fixed onto an upper side of the upper surface plate 8a integrally with the mounting part 2 through a spacer 6 having the almost same thickness dimension as the upper surface plate 8a. The mounting part 2 is provided along position adjusting long holes 8a3 to be horizontally possible, and is configured so as to be fastened to the upper surface plate 8a by screws 10 after positioning. The internal object is fastened to first fastening holes 2a of the mounting part 2 through insertion holes 8a1 of the upper surface plate 8a.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fastening seat structure for fastening interior fittings of a railway vehicle. [Background technology]

[0002] Conventionally, when placing seats on the floor of a railway vehicle interior, for example, seat supports made of separate members have been attached by welding to the upper surface of the underframe. Figure 5 shows a conventional railway vehicle floor structure 100. An underframe 101 having a hollow structure is placed on cross beams 102, and floor joists 103 and seat supports 104 are placed on this underframe 101. Floor panels 105 are then placed to cover the floor joists 103 and seat supports 104. This type of technology is described in Patent Document 1. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-254429 Summary of the Invention [Problem to be solved by the invention]

[0004] If the seat supports 104 as described above are welded to the upper surface of the underframe 101, the smoothness of the upper surface of the underframe 101 will be lost, making it difficult to accommodate future layout changes. Also, if the seat supports 104 are covered with floor plates 105 at a position away from the underframe 101 as shown in Figure 5, not only will the weight and cost increase, but there will also be the problem of the center of gravity of the car body being raised.

[0005] Therefore, the object of the present invention is to provide a fastening seat structure that maintains the smoothness of the upper surface of the underframe without increasing the weight or raising the center of gravity of the vehicle body, and that allows the fastening position to be adjusted. [Means for solving the problem]

[0006] In order to achieve the above object, the fastening seat structure of the present invention is a fastening seat structure for fastening and fixing interior fittings on the underframe of a railway vehicle, and is characterized by comprising: an upper surface plate of the underframe in which insertion holes for inserting fastening parts that fasten the interior fittings and through holes for connecting front and rear members are formed; an attachment part that is movably arranged within the underframe and has a first fastening hole through which the interior fitting is fastened through the insertion hole and a second fastening hole that fastens the upper surface plate, and for attaching the interior fitting; and an operating part that is integrally fixed to the attachment part from the upper side of the upper surface plate through the through hole and can operate the horizontal movement of the attachment part.

[0007] In addition to the above configuration, the fastening seat structure of the present invention is characterized in that it includes a spacer interposed between the mounting portion and the operating portion, the spacer having a thickness dimension slightly larger than that of the upper panel and a size that allows horizontal movement within the through hole, and the upper panel has a position adjustment long hole extending horizontally in an area facing the second fastening hole.

[0008] In addition to the above configuration, the fastening seat structure of the present invention is characterized in that the operating portion is formed with a working hole that opens above the insertion hole and the position adjustment long hole so that work can be performed thereon regardless of the horizontal position. [Effects of the Invention]

[0009] As described above, according to the present invention, the position of the mounting part within the underframe can be adjusted by operating the operating part from above the top plate of the underframe. Furthermore, if the operating part is made of a plate-shaped member, a large protruding structure will not be formed above the underframe, and this will prevent it from becoming an obstacle when changing the layout. It can be stopped.

[0010] In addition to the above-mentioned effects, the present invention also provides a gap between the mounting portion and the top plate even when the three layers of the mounting portion, spacer, and operating portion are fastened together. This reduces friction between the operating portion and the top plate, allowing for smooth horizontal movement of the mounting portion. Furthermore, since the position adjustment slot is formed opposite the second fastening hole, the range of horizontal movement is limited within the range of the position adjustment slot.

[0011] Furthermore, according to the present invention, in addition to the above effects, the interior can be fastened to the mounting portion through the work hole, and after fastening, the upper part can be blocked and protected so as not to interfere with the fastening parts. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a perspective view showing a fastening seat structure for an interior part of a railway vehicle according to the present invention. [Figure 2] FIG. [Figure 3] 2 is a cross-sectional view of the fastening seat structure of FIG. 1 taken along line AA. [Figure 4] 2 is a cross-sectional view of the fastening seat structure of FIG. 1 taken along line BB. [Figure 5] FIG. 1 is a diagram showing a floor structure of a conventional railway vehicle. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0014] Fig. 1 is a perspective view showing a fastening seat structure 1 for railway vehicle interior fittings according to the present invention. This fastening seat structure 1 is a structure including an upper surface plate 8a of an underframe 8 (see Fig. 3) described below. In the structure according to this embodiment, a hollow underframe 8 having a truss structure will be described as an example.

[0015] 1 shows a configuration in which a floor plate 12 is formed on an upper surface plate 8a of an underframe 8. A rectangular hole is formed in the floor plate 12, and an operating unit 4 is arranged inside the hole.

[0016] The operating part 4 is formed in a rectangular shape, and near both ends there are work holes 4a through which the interior fittings are fastened. A screw 10 can be seen inside the work holes 4a. This screw 10 is used to make fine adjustments in the horizontal direction when fastening the interior fittings.

[0017] Screws 11 (fastening parts) are provided at two locations closer to the center of the longitudinal direction of the operating unit 4 than the screws 10 (fastening parts). These screws 11 are fastening parts for integrally fixing the operating unit 4 to a mounting part 2 (described later using FIG. 2) provided on the back side of the top plate 8a.

[0018] The operating unit 4 is designed to be at approximately the same height as the floor board 12, and the entire floor surface is kept smooth.

[0019] Fig. 2 is an exploded perspective view of the fastening seat structure 1. For ease of explanation, the floor plate 12 (see Fig. 1) is not shown here. The truss structure formed inside the underframe 8 (see Fig. 3) is also not shown, and only the top plate 8a is shown.

[0020] A through hole 8a2 is formed in the top plate 8a. An opening is formed inside this through hole 8a2 large enough to accommodate a spacer 6 formed in a strip shape that is slightly smaller than the operation unit 4. In the configuration according to this embodiment, the opening of the through hole 8a2 is formed large enough to form a gap around the spacer 6 placed inside.

[0021] On both sides of the through hole 8a2 in the longitudinal direction, position adjustment elongated holes 8a3 are formed, extending in the same direction as the through hole 8a2. The position adjustment elongated holes 8a3 are holes through which screws 10 are inserted when fixing the mounting part 2, which is disposed below the top plate 8a, to the top plate 8a with the screws 10. The screws 10 are fastened to the second fastening holes 2b of the mounting part 2.

[0022] Further outside the position adjustment slot 8a3 of the top plate 8a, a circular insertion hole 8a1 is formed. This insertion hole 8a1 is formed to allow fastening parts such as screws to be inserted when attaching an interior item to be placed inside a railway vehicle directly to the above-mentioned mounting portion 2. The interior item is fastened and fixed to the first fastening hole 2a of the mounting portion 2 through this insertion hole 8a1.

[0023] The mounting part 2 is fixed integrally to the operation part 4, which is arranged on the front side of the top plate 8a, via the spacer 6, by the screw 11. Here, the spacer 6 is formed so as to be smaller than the through hole 8a2 and have the same thickness as the top plate 8a, as described above. Therefore, even when the operation part 4 is fastened to the third fastening hole 2c of the mounting part 2 with a screw, it is possible to prevent pressure from concentrating on the area in contact with the top plate 8a, and slight sliding movement in the horizontal direction relative to the top plate 8a is possible.

[0024] Since the fastening seat structure 1 is configured in this manner, when the operating part 4 is moved horizontally even from above the top plate 8a, the mounting part 2 can be moved horizontally within the length of the position adjustment long hole 8a3.

[0025] FIG. 3 is a cross-sectional view of the fastening seat structure 1 of FIG. 1 taken along line AA.

[0026] The structure can be seen in which the mounting portion 2 and the operating portion 4 are integrally fixed to the front and back via the spacer 6 housed inside the upper plate 8a of the frame 8.

[0027] It can also be seen that the smoothness of the floor surface is maintained because the operation unit 4 and the floor board 12 are formed with approximately the same thickness. With this configuration, even if a layout change occurs, the operation unit 4 can be treated in the same way as the floor board 12, making it possible to flexibly respond to design changes.

[0028] FIG. 4 is a cross-sectional view of the fastening seat structure 1 of FIG. 1 taken along line BB.

[0029] It can be seen that the mounting part 2 is fastened to the upper plate 8a of the underframe 8 by screws 10 that pass through the upper plate 8a. As explained using Figure 2, after fine adjustment in the horizontal direction, the mounting part 2 is completely fixed by the screws 10, and serves as a stable fastening seat for the interior fittings.

[0030] If the thickness of the operating portion 4 is designed to be greater than the height of the head of the screw 10, the screw 10 will not cause the floor surface to lose its smoothness.

[0031] In this way, with the fastening seat structure 1 for interior fittings according to the present invention, even in a truss where space is limited, the fastening seats can be placed inside the underframe without interfering with the internal wiring, and the smoothness of the floor surface is not impaired. In addition, the fastening seats provided inside the underframe can be finely adjusted by operating them from outside the underframe, improving work efficiency.

[0032] The configuration described above is one example of the present invention, and further includes the following modifications.

[0033] (1) In the above embodiment, the screws 10 and 11 are used as fastening parts. However, the present invention is not limited to this, and rivets may be used as fastening parts.

[0034] (2) In the above embodiment, the operating unit 4 extends to cover the first fastening hole 2a (hole for fastening the interior article) of the mounting unit 2. However, as long as the mounting unit 2 can be horizontally moved from at least the front side (upper side) of the top panel 8a, the operating unit 4 does not have to cover the first fastening hole 2a.

[0035] (3) In the above embodiment, the first fastening holes 2a for fastening the interior article are formed in two locations on the mounting portion 2. However, it is sufficient that the first fastening holes 2a for fastening the interior article are formed in at least one location. Also, the first fastening holes may be formed in three or more locations.

[0036] (4) In the above embodiment, the position adjustment slot 8a3 for fine adjustment of the mounting portion 2 in the horizontal direction is formed to extend along the longitudinal direction of the operating unit 4. However, this is not limiting, and as long as the position adjustment slot is adjustable in the horizontal direction, it may be formed to extend in a direction intersecting the longitudinal direction of the operating unit 4. Furthermore, it may have a shape other than a long hole so that the position can be adjusted freely in the horizontal direction. For example, it may be formed with a round hole large enough to allow the shaft of the screw 10 to move freely in the horizontal direction, and a washer that can fully cover this round hole may be used.

[0037] (5) In the above embodiment, the operating unit 4 is shaped like a rectangle with its longitudinal direction aligned with the mounting unit 2. However, the operating unit 4 does not have to be shaped like a rectangle as long as it has a shape that allows the mounting unit 2 to be operated in the horizontal direction. [Industrial Applicability]

[0038] The fastening seat structure for interior parts of the present invention is useful for body parts other than the underframe, as it places the fastening seat within the body structure such as the underframe and allows position adjustment using an operating part formed from a plate-shaped member on the inside of the vehicle. [Explanation of symbols]

[0039] 1 Fastening seat structure 2 Mounting part 2a First fastening hole 2b Second fastening hole 2c Third fastening hole 4 Control section 4a working hole 6 spacers 8 Frame 8a Top plate 8a1 Insertion hole 8a2 through hole 8a3 Long hole for position adjustment 10, 11 Screws (fasteners) 12 Floorboards 100 Conventional railcar floor structure 101 Frame 102 Crossbeam 103 Floor joists 104 Seat support 105 Floorboards

Claims

1. A fastening seat structure for fastening and fixing an interior item on an underframe of a railway vehicle, an upper surface plate of the underframe having through holes for inserting fastening parts for fastening the interior member and through holes for connecting front and rear members; an attachment portion that is movably disposed within the underframe, and that has a first fastening hole to which the interior is fastened through the insertion hole and a second fastening hole to which the upper panel is fastened, and that attaches the interior; an operating portion that is integrally fixed to the mounting portion from above the upper surface plate via the through hole and that can operate to move the mounting portion horizontally; A fastening seat structure for an interior item, comprising:

2. a spacer that is interposed between the mounting portion and the operating portion, has a thickness dimension slightly larger than that of the upper surface plate, and is large enough to be horizontally movable within the through hole; The upper surface plate has a position adjustment slot extending horizontally in an area facing the second fastening hole. The fastening seat structure for interior fittings according to claim 1.

3. The fastening seat structure for interior parts according to claim 2, characterized in that the operating portion is formed with a working hole that opens above the insertion hole and the position adjustment elongated hole so that work can be performed thereon regardless of the horizontal position.

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