JPH106986A - Railcar - Google Patents

Abstract

(57) [Summary] In a two-story vehicle, it is difficult to arrange large equipment under the floor, so all large equipment must be arranged at the end of the vehicle. As a result, the weight balance becomes very unbalanced, and it is difficult to balance the weight. SOLUTION: A floor skin 3 constituting a first floor 1a of a vehicle body is an extruded member made of light alloy, and a rib 3a is integrally formed on a vehicle outer surface of the floor skin, and a balance weight 2 is formed on the rib. Install. Since the size and the installation position of the balance weight 2 can be arbitrarily changed, the center of gravity of the vehicle body can be easily adjusted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a railway vehicle,
More particularly, the present invention relates to a railway vehicle having a vehicle body structure suitable for a vehicle such as a two-story vehicle in which the position of the center of gravity of a vehicle body needs to be adjusted.

[0002]

2. Description of the Related Art In a railway vehicle aiming at high speed, an extruded member made of a light alloy is used as a vehicle body component in order to reduce the weight of the vehicle body. When this light alloy extruded profile is used as an outer plate of a vehicle body, a rib having a T-shaped cross section is integrally formed on the outer plate, and the ribs reduce the number of bone members to be installed, thereby reducing the weight. And the number of man-hours were reduced. This kind of vehicle body structure is described in Electric Vehicle Research Society, Inc., September 1, 1990, "Electric Vehicle Science", October 1990, pp. 29-34, FIG.
3 is known.

[0003]

In the above-mentioned prior art light-alloy vehicle body structure, when the passenger cabin is constructed of two floors, the electric equipment conventionally installed on the underside of the underframe, that is, under the floor, is provided at both ends in the longitudinal direction of the vehicle body. It will be installed on the top of the underframe. Therefore, when the device which is conventionally installed under the floor is installed on the underframe, the position of the center of gravity of the vehicle body is raised. Further, since the weight of the passenger is also higher than the position where the passenger has conventionally acted, it is conceivable that the position of the center of gravity of the entire vehicle body may rise.

[0004] As a countermeasure, a balance weight must be installed on a floor plate portion constituting a floor portion of a vehicle body.
It is conceivable to install it between a plurality of ribs of the floorboard. Therefore, the balance weight is provided on the upper surface side of the floorboard. In such a structure, a balance weight must be installed before installing various indoor devices, and a great deal of labor is required to adjust the vehicle center of gravity when the installation of various devices on the vehicle body is completed. And needed time. In addition, it is effective to install the balance weight below the vehicle as much as possible.

It is an object of the present invention to provide a railway vehicle in which a balance weight is installed at a lower part of a vehicle body as much as possible, and the balance weight can be installed irrespective of the installation state of vehicle body fittings.

[0006]

According to the present invention, there is provided a two-story railway vehicle in which a first-floor section is disposed below a top surface of a bogie, and a second-floor section is disposed above the first-floor section. The floor outer panel constituting the first floor has a support fixing means on the outer surface of the vehicle, and a balance weight is attached via the support fixing means.

Further, in the present invention, an underfloor equipment room outer panel is disposed below a bogie upper surface so as to face a track, and a support fixing means is provided on a surface of the underfloor equipment room outer panel on the vehicle exterior side. A balance weight is attached via a support fixing means.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will now be described with reference to FIGS.
This will be described with reference to FIG. FIG. 1 is a plan view of an underframe constituting a vehicle body, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG.
FIG. 4 is a perspective view of a cross section taken along the line CC of FIG. 1. In FIG. 1, reference numeral 1 denotes an underframe constituting a vehicle body, a first-floor section 1a constituting a first-floor portion of a two-story car body, and end underframe sections 1b formed on both sides of the first-floor section 1a in the vehicle longitudinal direction. It is composed of The first floor portion 1a is configured to be located closer to the track than the end frame portion 1b, that is, at a position lower than the upper surface of the truck. The first floor 1a is composed of a floor skin 3 made of an extruded member made of light alloy and a reinforcing material 5 installed on the inner surface of the floor skin 3 along the vehicle width direction. I have. The floor skin 3
Is integrally formed with a rib 3a having a substantially T-shaped cross section, and a notch 3b corresponding to the width of the balance weight 2 is formed in a flange portion of the rib 3a.
The notch 3b is formed in the flange portion of the floor panel 3
And a hole for fastening means for fixing the balance weight 2 is provided. The balance weight 2 is configured such that its thickness is such that it can be inserted between the height of the rib 3a, that is, between the flange and the main body plate portion of the floor panel 3, and the necessary weight is obtained. The width in the longitudinal direction of the vehicle body is determined. When the necessary weight cannot be achieved only by adjusting the width, the balance weight 2 has a weight required to increase its thickness within the range of the interval between the flanges of the adjacent ribs 3a. Can be achieved.

The balance weight 2 is provided on the rib 3a.
Is fixed to the flange portion of the rib 3a by a screw 4 screwed through a hole formed in the flange portion. The balance weight 2 may be manufactured in a plurality of standard weights, and may be attached to the floor skin 3 as needed. That is, after installing various fittings on the vehicle body, the position of the center of gravity of the vehicle body is measured, the position where the balance weight 2 is mounted is calculated, and the required number of balance weights 2 are installed at the mounting position.

According to such a configuration, the balance weight 2 is supported by the ribs 3a formed integrally with the floor skin 3, so that a special support for fixing the balance weight 2 to the vehicle body is provided. No need to install. Further, since the balance weight 2 is mounted on the rib 3a and fixed by the screw 4, the load of the balance weight 2 does not directly act on the screw 4, so that the screw 4 Looseness can be prevented, and dropout can be prevented.

The balance weight 2 can be attached to the rib 3a irrespective of various fittings installed on the vehicle body, so that the position of the center of gravity can be adjusted by the balance weight 2 when the vehicle is completed. Therefore,
Even when various specifications of the vehicle are changed, the position of the center of gravity of the vehicle body can be easily adjusted. Regarding the adjustment of the position of the center of gravity in the longitudinal direction of the vehicle body, the balance weight 2
Can be moved in the longitudinal direction of the vehicle body.
Adjustment of the position of the center of gravity in the vehicle body width direction is performed by changing the row of adjacent ribs 3a or changing the size of the balance weight in the vehicle body width direction and changing the installation direction. With such a method of adjusting the center of gravity, the center of gravity of the vehicle body can be set at an optimum position.

In the above embodiment, the ribs 3a of the floor panel 3 are arranged along the longitudinal direction of the vehicle body.
The floor panel may be arranged with ribs extending along the width of the vehicle body.
Normally, in a two-story vehicle, a heavy electric appliance or the like is installed at the longitudinal end of the vehicle body, that is, at the end frame portion, and therefore, when a balance weight is installed, it is located close to the heavy object. Installation is advantageous without giving unnecessary twisting to the vehicle body. Therefore, a floor skin having ribs is arranged so that the extrusion direction thereof is along the width direction of the vehicle body, and a plurality of floor skins having the ribs are installed at both ends in the vehicle body longitudinal direction of the first floor. Configuration. When the floor skin is arranged in the width direction of the vehicle body in this manner, the lower surface of the rib is configured to be flush with the other lower surface of the floor on the first floor, and between the ribs where no balance weight is installed. Is
A blocking plate will be installed to smooth the entire first floor.

According to such a configuration, the floor outer panel having ribs at both ends in the longitudinal direction of the vehicle body on the first floor is arranged along the width direction of the vehicle body to thereby provide a floor with ribs. By reducing the area of the outer plate, it is possible to prevent an increase in the weight of the vehicle body. Alternatively, when installing the floor skin along the ribs in the longitudinal direction of the vehicle body, the work relating to removal of the ribs and the like is reduced as compared with a method in which the ribs are left at both ends in the longitudinal direction of the vehicle body to suppress an increase in the weight of the vehicle body. can do.

Although the above embodiment has been described with reference to an example of a two-story vehicle, the floor panel may be used as an under-floor equipment room panel that covers under-floor equipment installed on the underside of the underframe. This underfloor equipment room outer panel is provided with the rib on a track side surface,
The space between the ribs is used as an installation space for the balance weight, as in the above embodiment. Such a configuration is particularly effective in a vehicle of the vehicle body inclination type in which the position of the vehicle center of gravity greatly affects its performance. Further, in recent years, units under the floor have been unitized, and a plurality of devices are collectively stored in a relatively large device box. As an outer plate member forming the lower surface of such a relatively large equipment box,
An outer panel member having the same structure as the floor panel provided with the ribs of the above embodiment is used. By installing a balance weight between the ribs of the outer plate member forming the bottom surface of the equipment box as in the above-described embodiment, the center of gravity of the entire vehicle body can be adjusted to a predetermined position.

[0015]

By placing the balance weight in the underframe, the front, rear, left and right balance of the whole vehicle can be balanced, and the effect of lowering the center of gravity required for a high-speed vehicle is obtained.

[Brief description of the drawings]

FIG. 1 is a plan view of an underframe showing an embodiment of a railway vehicle according to the present invention.

FIG. 2 is a sectional view taken along the line AA of FIG.

FIG. 3 is a view taken along the line BB of FIG. 2;

FIG. 4 is a perspective view of a CC section of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Underframe, 2 ... Balance weight, 3 ... Floor skin, 3a ...
Rib, 3b ... notch, 4 ... screw.

Claims (5)

[Claims] 1. A two-story railway vehicle in which a first-floor section is disposed below an upper surface of a bogie, and a second-floor section is disposed above the first-floor section. A railway vehicle comprising a floor outer panel provided with support fixing means on an outer surface of a vehicle, and a balance weight attached via the support fixing means. 2. The railway vehicle according to claim 1, wherein the floor skin is made of a light alloy extruded member,
The railway vehicle according to claim 1, wherein the floor skin is provided with a rib integrally formed along a direction in which the floor skin is extruded to form the support and fixing means. 3. The railway vehicle according to claim 2, wherein said floor outer panel is arranged so that its pushing direction is along the longitudinal direction of the vehicle body. 4. An underfloor equipment room outer panel is disposed below the upper surface of the bogie so as to face the track, and a support fixing means is provided on a surface of the underfloor equipment room outer panel on the vehicle exterior side. A railway vehicle characterized in that a balance weight is attached through the rail. 5. The railway vehicle according to claim 4, wherein the underfloor equipment room outer panel is made of a light alloy extruded shape member, and the floor panel is integrally formed along the pushing direction and the support fixing means. A railway vehicle comprising a rib that forms: It is characterized in that the weight of the vehicle is attached to the lower part of the underframe to lower the position of the center of gravity.