JPH0123885Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of application of the invention] This invention relates to the floor structure of vehicles, especially railway vehicles, and relates to floor structures such as platform shapes, underfloor boards such as corrugated boards or flat boards, heat and sound insulation materials, and floor boards. It is something.

[Background of the idea]

Generally, the floor structure of a vehicle is equipped with a corrugated plate or a flat plate to withstand the tensile force due to the traction force from other connected vehicles, the compressive force due to brake delay, and the compressive force during connection or collision. Since the structure is equipped with heat and sound insulation materials, floorboards, floor coverings, or carpets, in order to increase the heat and sound insulation effect, it is necessary to increase the thickness of the floor structure from the top of the platform to the top of the floor. As a result, the height from the top of the rail to the top of the floor naturally increased, resulting in a reduction in the effective height of the passenger compartment, an increase in the height of the vehicle's center of gravity, and the need to strengthen the running gear. In addition, the height of the floor surface is limited due to the relationship between the height of the platform and the top surface of the floor, and the height of the underfloor equipment is also naturally limited, which increases the width and length of the equipment, especially in trains where there is a lot of underfloor equipment. In vehicles, there are disadvantages such as a reduction in the installation space for equipment and difficulty in maintaining and inspecting the equipment.

As shown in FIG. 3, the floor structure according to the above conventional technology includes a corrugated board 3 provided on the upper surface of the side beam 2 constituting the platform frame, and a floor board 5, a floor covering 6, and the corrugated board 3.
There is a space separated by a floor support 4, and a heat-insulating and sound-insulating material 7 is provided in this space.In order to improve the heat-insulating and sound-insulating effect, it is necessary to make this space higher and thicken the heat-insulating and sound-insulating material 7. Therefore, the thickness from the top surface of the platform to the top surface of the floor was increased. For things related to Figure 3, for example,
-8613 is mentioned.

[Purpose of invention]

The present invention was developed by focusing on the above-mentioned drawbacks.The purpose of this invention is to effectively utilize the platform frame to achieve high heat and sound insulation effects, lower the floor top surface, and create a lightweight vehicle floor structure. It is about providing.

[Summary of the idea]

Generally, the floor structure of a vehicle is constructed on the top surface of the platform, but these requirements are being met in air-conditioned vehicles that require improved insulation effects, vehicles destined for cold regions, and vehicles that require reduced interior noise. To satisfy this requirement, the thickness of the floor structure must be increased. This invention makes it possible to reduce the apparent thickness of the floor structure by using the space in the platform part as part of the floor structure.
Except for the inner beams, side beams, and large horizontal beams for attaching heavy objects, the other frame members are made smaller and corrugated or flat plates are installed on top of them, and heat and sound insulation material is inserted to form the floor structure. This is what I did.

[Example of idea]

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a cross section of the floor structure according to the present invention, and FIG. 2 is a cross section taken along line AA in FIG. In the figure, 1 is a platform side beam, 2 is a large horizontal beam that is combined with the side beam 1 by welding etc. to form the platform frame, and 3 is a corrugated plate that constitutes the lower member of the floor structure, which is attached to the horizontal beam 2. It is fixed by welding etc. 4 is a floor support combined with the corrugated board 3 by welding, 5 is a floor board combined with the floor support 4 by rivets, etc., 6 is a floor covering attached to the floor board 5 with adhesive, etc., and 7 is the corrugated board 3 and A heat and sound insulation material is provided between the floorboards 5, and a small horizontal beam 8 is provided between the horizontal beams 2. Note that a flat plate may be used instead of the corrugated plate 3.

The corrugated board 3 is provided at a lower position than the top surface of the crossbeam 2, but the height position is such that the heat and sound insulating material 7 is inserted between it and the floor board 5, and it can be set to any thickness that meets the required specifications of the vehicle. can do. In addition, the corrugated plate 3 will be inserted between the crossbeams 2 in the longitudinal direction of the vehicle, but the crossbeams 2 should be kept to the minimum necessary so that particularly heavy items among the underfloor equipment can be attached. A small horizontal beam 8 is inserted between the lower surface of the corrugated plate 3 and the lower surface of the horizontal beam 2 to withstand the passenger load. The horizontal beam 2 is king-shaped and has a structure on which the end of the corrugated plate 3 rests.

[Effect of idea]

According to the present invention, it is possible to provide a vehicle with a low floor surface and high heat and soundproofing effects, and it is also lightweight if the corrugated plate and floor supports are located within the platform frame and the structure secures the same strength as the structure of the conventional technology. It has the effect of being able to change. In particular, in the case of vehicles with large car end compression forces, the corrugated plates and floor supports are located within the platform frame, making it possible to withstand the compression forces compared to conventional structures.
The buckling strength of the corrugated plate also increases, which has the effect of reducing weight.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of a vehicle floor structure according to the present invention, FIG. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view of a vehicle floor structure according to the prior art. 1...Side beam, 2...Side beam, 3...Corrugated board,
4... Floor support, 5... Floor board, 6... Floor covering, 7...
Heat and sound insulation material, 8...Small horizontal beam.

Claims (1)

[Scope of utility model registration request] A corrugated plate was installed at a position lower than the top surface of the platform but higher than the bottom surface of the platform, and horizontal beams for attaching heavy equipment, etc. were formed to support the ends of the corrugated plate, and were provided between the horizontal beams. A vehicle floor structure characterized in that a floor support is provided on the top surface of a corrugated board, a small horizontal beam is provided on the bottom surface, a heat and sound insulating material is inserted between the top surface of the platform frame and the corrugated board, and a floor plate, etc. is provided on the top surface of the platform frame. .